![Linus Torvalds](/assets/img/avatar_default.png)
Pull spectre/meltdown updates from Thomas Gleixner: "The next round of updates related to melted spectrum: - The initial set of spectre V1 mitigations: - Array index speculation blocker and its usage for syscall, fdtable and the n180211 driver. - Speculation barrier and its usage in user access functions - Make indirect calls in KVM speculation safe - Blacklisting of known to be broken microcodes so IPBP/IBSR are not touched. - The initial IBPB support and its usage in context switch - The exposure of the new speculation MSRs to KVM guests. - A fix for a regression in x86/32 related to the cpu entry area - Proper whitelisting for known to be safe CPUs from the mitigations. - objtool fixes to deal proper with retpolines and alternatives - Exclude __init functions from retpolines which speeds up the boot process. - Removal of the syscall64 fast path and related cleanups and simplifications - Removal of the unpatched paravirt mode which is yet another source of indirect unproteced calls. - A new and undisputed version of the module mismatch warning - A couple of cleanup and correctness fixes all over the place Yet another step towards full mitigation. There are a few things still missing like the RBS underflow mitigation for Skylake and other small details, but that's being worked on. That said, I'm taking a belated christmas vacation for a week and hope that everything is magically solved when I'm back on Feb 12th" * 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (37 commits) KVM/SVM: Allow direct access to MSR_IA32_SPEC_CTRL KVM/VMX: Allow direct access to MSR_IA32_SPEC_CTRL KVM/VMX: Emulate MSR_IA32_ARCH_CAPABILITIES KVM/x86: Add IBPB support KVM/x86: Update the reverse_cpuid list to include CPUID_7_EDX x86/speculation: Fix typo IBRS_ATT, which should be IBRS_ALL x86/pti: Mark constant arrays as __initconst x86/spectre: Simplify spectre_v2 command line parsing x86/retpoline: Avoid retpolines for built-in __init functions x86/kvm: Update spectre-v1 mitigation KVM: VMX: make MSR bitmaps per-VCPU x86/paravirt: Remove 'noreplace-paravirt' cmdline option x86/speculation: Use Indirect Branch Prediction Barrier in context switch x86/cpuid: Fix up "virtual" IBRS/IBPB/STIBP feature bits on Intel x86/spectre: Fix spelling mistake: "vunerable"-> "vulnerable" x86/spectre: Report get_user mitigation for spectre_v1 nl80211: Sanitize array index in parse_txq_params vfs, fdtable: Prevent bounds-check bypass via speculative execution x86/syscall: Sanitize syscall table de-references under speculation x86/get_user: Use pointer masking to limit speculation ...
15397 lines
406 KiB
C
15397 lines
406 KiB
C
/*
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* This is the new netlink-based wireless configuration interface.
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*
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* Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
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* Copyright 2013-2014 Intel Mobile Communications GmbH
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* Copyright 2015-2017 Intel Deutschland GmbH
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*/
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#include <linux/if.h>
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#include <linux/module.h>
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#include <linux/err.h>
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#include <linux/slab.h>
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#include <linux/list.h>
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#include <linux/if_ether.h>
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#include <linux/ieee80211.h>
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#include <linux/nl80211.h>
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#include <linux/rtnetlink.h>
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#include <linux/netlink.h>
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#include <linux/nospec.h>
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#include <linux/etherdevice.h>
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#include <net/net_namespace.h>
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#include <net/genetlink.h>
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#include <net/cfg80211.h>
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#include <net/sock.h>
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#include <net/inet_connection_sock.h>
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#include "core.h"
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#include "nl80211.h"
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#include "reg.h"
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#include "rdev-ops.h"
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static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
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struct genl_info *info,
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struct cfg80211_crypto_settings *settings,
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int cipher_limit);
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/* the netlink family */
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static struct genl_family nl80211_fam;
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/* multicast groups */
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enum nl80211_multicast_groups {
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NL80211_MCGRP_CONFIG,
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NL80211_MCGRP_SCAN,
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NL80211_MCGRP_REGULATORY,
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NL80211_MCGRP_MLME,
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NL80211_MCGRP_VENDOR,
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NL80211_MCGRP_NAN,
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NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
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};
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static const struct genl_multicast_group nl80211_mcgrps[] = {
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[NL80211_MCGRP_CONFIG] = { .name = NL80211_MULTICAST_GROUP_CONFIG },
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[NL80211_MCGRP_SCAN] = { .name = NL80211_MULTICAST_GROUP_SCAN },
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[NL80211_MCGRP_REGULATORY] = { .name = NL80211_MULTICAST_GROUP_REG },
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[NL80211_MCGRP_MLME] = { .name = NL80211_MULTICAST_GROUP_MLME },
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[NL80211_MCGRP_VENDOR] = { .name = NL80211_MULTICAST_GROUP_VENDOR },
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[NL80211_MCGRP_NAN] = { .name = NL80211_MULTICAST_GROUP_NAN },
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#ifdef CONFIG_NL80211_TESTMODE
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[NL80211_MCGRP_TESTMODE] = { .name = NL80211_MULTICAST_GROUP_TESTMODE }
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#endif
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};
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/* returns ERR_PTR values */
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static struct wireless_dev *
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__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
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{
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struct cfg80211_registered_device *rdev;
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struct wireless_dev *result = NULL;
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bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
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bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
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u64 wdev_id;
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int wiphy_idx = -1;
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int ifidx = -1;
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ASSERT_RTNL();
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if (!have_ifidx && !have_wdev_id)
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return ERR_PTR(-EINVAL);
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if (have_ifidx)
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ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
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if (have_wdev_id) {
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wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
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wiphy_idx = wdev_id >> 32;
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}
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list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
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struct wireless_dev *wdev;
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if (wiphy_net(&rdev->wiphy) != netns)
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continue;
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if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
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continue;
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list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
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if (have_ifidx && wdev->netdev &&
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wdev->netdev->ifindex == ifidx) {
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result = wdev;
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break;
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}
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if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
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result = wdev;
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break;
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}
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}
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if (result)
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break;
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}
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if (result)
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return result;
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return ERR_PTR(-ENODEV);
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}
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static struct cfg80211_registered_device *
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__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
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{
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struct cfg80211_registered_device *rdev = NULL, *tmp;
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struct net_device *netdev;
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ASSERT_RTNL();
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if (!attrs[NL80211_ATTR_WIPHY] &&
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!attrs[NL80211_ATTR_IFINDEX] &&
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!attrs[NL80211_ATTR_WDEV])
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return ERR_PTR(-EINVAL);
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if (attrs[NL80211_ATTR_WIPHY])
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rdev = cfg80211_rdev_by_wiphy_idx(
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nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
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if (attrs[NL80211_ATTR_WDEV]) {
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u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
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struct wireless_dev *wdev;
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bool found = false;
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tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
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if (tmp) {
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/* make sure wdev exists */
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list_for_each_entry(wdev, &tmp->wiphy.wdev_list, list) {
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if (wdev->identifier != (u32)wdev_id)
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continue;
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found = true;
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break;
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}
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if (!found)
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tmp = NULL;
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if (rdev && tmp != rdev)
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return ERR_PTR(-EINVAL);
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rdev = tmp;
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}
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}
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if (attrs[NL80211_ATTR_IFINDEX]) {
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int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
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netdev = __dev_get_by_index(netns, ifindex);
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if (netdev) {
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if (netdev->ieee80211_ptr)
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tmp = wiphy_to_rdev(
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netdev->ieee80211_ptr->wiphy);
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else
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tmp = NULL;
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/* not wireless device -- return error */
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if (!tmp)
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return ERR_PTR(-EINVAL);
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/* mismatch -- return error */
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if (rdev && tmp != rdev)
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return ERR_PTR(-EINVAL);
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rdev = tmp;
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}
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}
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if (!rdev)
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return ERR_PTR(-ENODEV);
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if (netns != wiphy_net(&rdev->wiphy))
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return ERR_PTR(-ENODEV);
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return rdev;
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}
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/*
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* This function returns a pointer to the driver
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* that the genl_info item that is passed refers to.
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*
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* The result of this can be a PTR_ERR and hence must
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* be checked with IS_ERR() for errors.
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*/
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static struct cfg80211_registered_device *
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cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
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{
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return __cfg80211_rdev_from_attrs(netns, info->attrs);
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}
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/* policy for the attributes */
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static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
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[NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
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[NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
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.len = 20-1 },
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[NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
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[NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
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[NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
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[NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
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[NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
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[NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
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[NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
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[NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
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[NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
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[NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
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[NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
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[NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
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[NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
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[NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
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[NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
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[NL80211_ATTR_MAC] = { .len = ETH_ALEN },
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[NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
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[NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
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[NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
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.len = WLAN_MAX_KEY_LEN },
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[NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
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[NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
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[NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
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[NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
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[NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
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[NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
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[NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
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[NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
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.len = IEEE80211_MAX_DATA_LEN },
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[NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
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.len = IEEE80211_MAX_DATA_LEN },
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[NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
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[NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
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[NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
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[NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
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.len = NL80211_MAX_SUPP_RATES },
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[NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
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[NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
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[NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
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[NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
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.len = IEEE80211_MAX_MESH_ID_LEN },
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[NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
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[NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
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[NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
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[NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
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[NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
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[NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
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[NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
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.len = NL80211_MAX_SUPP_RATES },
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[NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
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[NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
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[NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
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[NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
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[NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
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[NL80211_ATTR_IE] = { .type = NLA_BINARY,
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.len = IEEE80211_MAX_DATA_LEN },
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[NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
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[NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
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[NL80211_ATTR_SSID] = { .type = NLA_BINARY,
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.len = IEEE80211_MAX_SSID_LEN },
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[NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
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[NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
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[NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
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[NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
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[NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
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[NL80211_ATTR_STA_FLAGS2] = {
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.len = sizeof(struct nl80211_sta_flag_update),
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},
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[NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
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[NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
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[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
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[NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
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[NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
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[NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
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[NL80211_ATTR_PID] = { .type = NLA_U32 },
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[NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
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[NL80211_ATTR_PMKID] = { .len = WLAN_PMKID_LEN },
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[NL80211_ATTR_DURATION] = { .type = NLA_U32 },
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[NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
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[NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
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[NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
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.len = IEEE80211_MAX_DATA_LEN },
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[NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
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[NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
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[NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
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[NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
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[NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
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[NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
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[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
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[NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
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[NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
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[NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
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[NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
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[NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
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[NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
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[NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
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[NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
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[NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
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[NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
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[NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
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[NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
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[NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
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.len = IEEE80211_MAX_DATA_LEN },
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[NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
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.len = IEEE80211_MAX_DATA_LEN },
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[NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
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[NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
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[NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
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[NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
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[NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
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[NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
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[NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
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[NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
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[NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
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[NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
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[NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
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.len = IEEE80211_MAX_DATA_LEN },
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[NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
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[NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
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[NL80211_ATTR_HT_CAPABILITY_MASK] = {
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.len = NL80211_HT_CAPABILITY_LEN
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},
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[NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
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[NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
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[NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
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[NL80211_ATTR_WDEV] = { .type = NLA_U64 },
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[NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
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[NL80211_ATTR_AUTH_DATA] = { .type = NLA_BINARY, },
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[NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
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[NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
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[NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
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[NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
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[NL80211_ATTR_LOCAL_MESH_POWER_MODE] = {. type = NLA_U32 },
|
|
[NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
|
|
[NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
|
|
[NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
|
|
[NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
|
|
[NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
|
|
[NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
|
|
[NL80211_ATTR_VHT_CAPABILITY_MASK] = {
|
|
.len = NL80211_VHT_CAPABILITY_LEN,
|
|
},
|
|
[NL80211_ATTR_MDID] = { .type = NLA_U16 },
|
|
[NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
|
|
.len = IEEE80211_MAX_DATA_LEN },
|
|
[NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
|
|
[NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
|
|
[NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
|
|
[NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
|
|
[NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
|
|
[NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
|
|
[NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
|
|
[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
|
|
[NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
|
|
[NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
|
|
[NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
|
|
[NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
|
|
[NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
|
|
[NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
|
|
.len = IEEE80211_QOS_MAP_LEN_MAX },
|
|
[NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
|
|
[NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
|
|
[NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
|
|
[NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG },
|
|
[NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
|
|
[NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
|
|
[NL80211_ATTR_TSID] = { .type = NLA_U8 },
|
|
[NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
|
|
[NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
|
|
[NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
|
|
[NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
|
|
[NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG },
|
|
[NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
|
|
[NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
|
|
[NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
|
|
[NL80211_ATTR_PBSS] = { .type = NLA_FLAG },
|
|
[NL80211_ATTR_BSS_SELECT] = { .type = NLA_NESTED },
|
|
[NL80211_ATTR_STA_SUPPORT_P2P_PS] = { .type = NLA_U8 },
|
|
[NL80211_ATTR_MU_MIMO_GROUP_DATA] = {
|
|
.len = VHT_MUMIMO_GROUPS_DATA_LEN
|
|
},
|
|
[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR] = { .len = ETH_ALEN },
|
|
[NL80211_ATTR_NAN_MASTER_PREF] = { .type = NLA_U8 },
|
|
[NL80211_ATTR_BANDS] = { .type = NLA_U32 },
|
|
[NL80211_ATTR_NAN_FUNC] = { .type = NLA_NESTED },
|
|
[NL80211_ATTR_FILS_KEK] = { .type = NLA_BINARY,
|
|
.len = FILS_MAX_KEK_LEN },
|
|
[NL80211_ATTR_FILS_NONCES] = { .len = 2 * FILS_NONCE_LEN },
|
|
[NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED] = { .type = NLA_FLAG, },
|
|
[NL80211_ATTR_BSSID] = { .len = ETH_ALEN },
|
|
[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI] = { .type = NLA_S8 },
|
|
[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST] = {
|
|
.len = sizeof(struct nl80211_bss_select_rssi_adjust)
|
|
},
|
|
[NL80211_ATTR_TIMEOUT_REASON] = { .type = NLA_U32 },
|
|
[NL80211_ATTR_FILS_ERP_USERNAME] = { .type = NLA_BINARY,
|
|
.len = FILS_ERP_MAX_USERNAME_LEN },
|
|
[NL80211_ATTR_FILS_ERP_REALM] = { .type = NLA_BINARY,
|
|
.len = FILS_ERP_MAX_REALM_LEN },
|
|
[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] = { .type = NLA_U16 },
|
|
[NL80211_ATTR_FILS_ERP_RRK] = { .type = NLA_BINARY,
|
|
.len = FILS_ERP_MAX_RRK_LEN },
|
|
[NL80211_ATTR_FILS_CACHE_ID] = { .len = 2 },
|
|
[NL80211_ATTR_PMK] = { .type = NLA_BINARY, .len = PMK_MAX_LEN },
|
|
[NL80211_ATTR_SCHED_SCAN_MULTI] = { .type = NLA_FLAG },
|
|
};
|
|
|
|
/* policy for the key attributes */
|
|
static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
|
|
[NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
|
|
[NL80211_KEY_IDX] = { .type = NLA_U8 },
|
|
[NL80211_KEY_CIPHER] = { .type = NLA_U32 },
|
|
[NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
|
|
[NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
|
|
[NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
|
|
[NL80211_KEY_TYPE] = { .type = NLA_U32 },
|
|
[NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
|
|
};
|
|
|
|
/* policy for the key default flags */
|
|
static const struct nla_policy
|
|
nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
|
|
[NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
|
|
[NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
|
|
};
|
|
|
|
#ifdef CONFIG_PM
|
|
/* policy for WoWLAN attributes */
|
|
static const struct nla_policy
|
|
nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
|
|
[NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
|
|
[NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
|
|
[NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
|
|
[NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
|
|
[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
|
|
[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
|
|
[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
|
|
[NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
|
|
[NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
|
|
[NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
|
|
};
|
|
|
|
static const struct nla_policy
|
|
nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
|
|
[NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
|
|
[NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
|
|
[NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
|
|
[NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
|
|
[NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
|
|
[NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
|
|
[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
|
|
.len = sizeof(struct nl80211_wowlan_tcp_data_seq)
|
|
},
|
|
[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
|
|
.len = sizeof(struct nl80211_wowlan_tcp_data_token)
|
|
},
|
|
[NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
|
|
[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
|
|
[NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
|
|
};
|
|
#endif /* CONFIG_PM */
|
|
|
|
/* policy for coalesce rule attributes */
|
|
static const struct nla_policy
|
|
nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
|
|
[NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
|
|
[NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
|
|
[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
|
|
};
|
|
|
|
/* policy for GTK rekey offload attributes */
|
|
static const struct nla_policy
|
|
nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
|
|
[NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
|
|
[NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
|
|
[NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
|
|
};
|
|
|
|
static const struct nla_policy
|
|
nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
|
|
[NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
|
|
.len = IEEE80211_MAX_SSID_LEN },
|
|
[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID] = { .len = ETH_ALEN },
|
|
[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
|
|
};
|
|
|
|
static const struct nla_policy
|
|
nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = {
|
|
[NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 },
|
|
[NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 },
|
|
};
|
|
|
|
static const struct nla_policy
|
|
nl80211_bss_select_policy[NL80211_BSS_SELECT_ATTR_MAX + 1] = {
|
|
[NL80211_BSS_SELECT_ATTR_RSSI] = { .type = NLA_FLAG },
|
|
[NL80211_BSS_SELECT_ATTR_BAND_PREF] = { .type = NLA_U32 },
|
|
[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST] = {
|
|
.len = sizeof(struct nl80211_bss_select_rssi_adjust)
|
|
},
|
|
};
|
|
|
|
/* policy for NAN function attributes */
|
|
static const struct nla_policy
|
|
nl80211_nan_func_policy[NL80211_NAN_FUNC_ATTR_MAX + 1] = {
|
|
[NL80211_NAN_FUNC_TYPE] = { .type = NLA_U8 },
|
|
[NL80211_NAN_FUNC_SERVICE_ID] = {
|
|
.len = NL80211_NAN_FUNC_SERVICE_ID_LEN },
|
|
[NL80211_NAN_FUNC_PUBLISH_TYPE] = { .type = NLA_U8 },
|
|
[NL80211_NAN_FUNC_PUBLISH_BCAST] = { .type = NLA_FLAG },
|
|
[NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE] = { .type = NLA_FLAG },
|
|
[NL80211_NAN_FUNC_FOLLOW_UP_ID] = { .type = NLA_U8 },
|
|
[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID] = { .type = NLA_U8 },
|
|
[NL80211_NAN_FUNC_FOLLOW_UP_DEST] = { .len = ETH_ALEN },
|
|
[NL80211_NAN_FUNC_CLOSE_RANGE] = { .type = NLA_FLAG },
|
|
[NL80211_NAN_FUNC_TTL] = { .type = NLA_U32 },
|
|
[NL80211_NAN_FUNC_SERVICE_INFO] = { .type = NLA_BINARY,
|
|
.len = NL80211_NAN_FUNC_SERVICE_SPEC_INFO_MAX_LEN },
|
|
[NL80211_NAN_FUNC_SRF] = { .type = NLA_NESTED },
|
|
[NL80211_NAN_FUNC_RX_MATCH_FILTER] = { .type = NLA_NESTED },
|
|
[NL80211_NAN_FUNC_TX_MATCH_FILTER] = { .type = NLA_NESTED },
|
|
[NL80211_NAN_FUNC_INSTANCE_ID] = { .type = NLA_U8 },
|
|
[NL80211_NAN_FUNC_TERM_REASON] = { .type = NLA_U8 },
|
|
};
|
|
|
|
/* policy for Service Response Filter attributes */
|
|
static const struct nla_policy
|
|
nl80211_nan_srf_policy[NL80211_NAN_SRF_ATTR_MAX + 1] = {
|
|
[NL80211_NAN_SRF_INCLUDE] = { .type = NLA_FLAG },
|
|
[NL80211_NAN_SRF_BF] = { .type = NLA_BINARY,
|
|
.len = NL80211_NAN_FUNC_SRF_MAX_LEN },
|
|
[NL80211_NAN_SRF_BF_IDX] = { .type = NLA_U8 },
|
|
[NL80211_NAN_SRF_MAC_ADDRS] = { .type = NLA_NESTED },
|
|
};
|
|
|
|
/* policy for packet pattern attributes */
|
|
static const struct nla_policy
|
|
nl80211_packet_pattern_policy[MAX_NL80211_PKTPAT + 1] = {
|
|
[NL80211_PKTPAT_MASK] = { .type = NLA_BINARY, },
|
|
[NL80211_PKTPAT_PATTERN] = { .type = NLA_BINARY, },
|
|
[NL80211_PKTPAT_OFFSET] = { .type = NLA_U32 },
|
|
};
|
|
|
|
static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
|
|
struct netlink_callback *cb,
|
|
struct cfg80211_registered_device **rdev,
|
|
struct wireless_dev **wdev)
|
|
{
|
|
int err;
|
|
|
|
if (!cb->args[0]) {
|
|
err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
|
|
genl_family_attrbuf(&nl80211_fam),
|
|
nl80211_fam.maxattr, nl80211_policy, NULL);
|
|
if (err)
|
|
return err;
|
|
|
|
*wdev = __cfg80211_wdev_from_attrs(
|
|
sock_net(skb->sk),
|
|
genl_family_attrbuf(&nl80211_fam));
|
|
if (IS_ERR(*wdev))
|
|
return PTR_ERR(*wdev);
|
|
*rdev = wiphy_to_rdev((*wdev)->wiphy);
|
|
/* 0 is the first index - add 1 to parse only once */
|
|
cb->args[0] = (*rdev)->wiphy_idx + 1;
|
|
cb->args[1] = (*wdev)->identifier;
|
|
} else {
|
|
/* subtract the 1 again here */
|
|
struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
|
|
struct wireless_dev *tmp;
|
|
|
|
if (!wiphy)
|
|
return -ENODEV;
|
|
*rdev = wiphy_to_rdev(wiphy);
|
|
*wdev = NULL;
|
|
|
|
list_for_each_entry(tmp, &(*rdev)->wiphy.wdev_list, list) {
|
|
if (tmp->identifier == cb->args[1]) {
|
|
*wdev = tmp;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!*wdev)
|
|
return -ENODEV;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* IE validation */
|
|
static bool is_valid_ie_attr(const struct nlattr *attr)
|
|
{
|
|
const u8 *pos;
|
|
int len;
|
|
|
|
if (!attr)
|
|
return true;
|
|
|
|
pos = nla_data(attr);
|
|
len = nla_len(attr);
|
|
|
|
while (len) {
|
|
u8 elemlen;
|
|
|
|
if (len < 2)
|
|
return false;
|
|
len -= 2;
|
|
|
|
elemlen = pos[1];
|
|
if (elemlen > len)
|
|
return false;
|
|
|
|
len -= elemlen;
|
|
pos += 2 + elemlen;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/* message building helper */
|
|
static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
|
|
int flags, u8 cmd)
|
|
{
|
|
/* since there is no private header just add the generic one */
|
|
return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
|
|
}
|
|
|
|
static int nl80211_msg_put_channel(struct sk_buff *msg,
|
|
struct ieee80211_channel *chan,
|
|
bool large)
|
|
{
|
|
/* Some channels must be completely excluded from the
|
|
* list to protect old user-space tools from breaking
|
|
*/
|
|
if (!large && chan->flags &
|
|
(IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
|
|
return 0;
|
|
|
|
if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
|
|
chan->center_freq))
|
|
goto nla_put_failure;
|
|
|
|
if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
|
|
nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
|
|
goto nla_put_failure;
|
|
if (chan->flags & IEEE80211_CHAN_NO_IR) {
|
|
if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
|
|
goto nla_put_failure;
|
|
if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
|
|
goto nla_put_failure;
|
|
}
|
|
if (chan->flags & IEEE80211_CHAN_RADAR) {
|
|
if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
|
|
goto nla_put_failure;
|
|
if (large) {
|
|
u32 time;
|
|
|
|
time = elapsed_jiffies_msecs(chan->dfs_state_entered);
|
|
|
|
if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
|
|
chan->dfs_state))
|
|
goto nla_put_failure;
|
|
if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
|
|
time))
|
|
goto nla_put_failure;
|
|
if (nla_put_u32(msg,
|
|
NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
|
|
chan->dfs_cac_ms))
|
|
goto nla_put_failure;
|
|
}
|
|
}
|
|
|
|
if (large) {
|
|
if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
|
|
nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
|
|
goto nla_put_failure;
|
|
if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
|
|
nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
|
|
goto nla_put_failure;
|
|
if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
|
|
nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
|
|
goto nla_put_failure;
|
|
if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
|
|
nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
|
|
goto nla_put_failure;
|
|
if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
|
|
nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
|
|
goto nla_put_failure;
|
|
if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
|
|
nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
|
|
goto nla_put_failure;
|
|
if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
|
|
nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
|
|
goto nla_put_failure;
|
|
if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
|
|
nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
|
|
goto nla_put_failure;
|
|
}
|
|
|
|
if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
|
|
DBM_TO_MBM(chan->max_power)))
|
|
goto nla_put_failure;
|
|
|
|
return 0;
|
|
|
|
nla_put_failure:
|
|
return -ENOBUFS;
|
|
}
|
|
|
|
/* netlink command implementations */
|
|
|
|
struct key_parse {
|
|
struct key_params p;
|
|
int idx;
|
|
int type;
|
|
bool def, defmgmt;
|
|
bool def_uni, def_multi;
|
|
};
|
|
|
|
static int nl80211_parse_key_new(struct genl_info *info, struct nlattr *key,
|
|
struct key_parse *k)
|
|
{
|
|
struct nlattr *tb[NL80211_KEY_MAX + 1];
|
|
int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
|
|
nl80211_key_policy, info->extack);
|
|
if (err)
|
|
return err;
|
|
|
|
k->def = !!tb[NL80211_KEY_DEFAULT];
|
|
k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
|
|
|
|
if (k->def) {
|
|
k->def_uni = true;
|
|
k->def_multi = true;
|
|
}
|
|
if (k->defmgmt)
|
|
k->def_multi = true;
|
|
|
|
if (tb[NL80211_KEY_IDX])
|
|
k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
|
|
|
|
if (tb[NL80211_KEY_DATA]) {
|
|
k->p.key = nla_data(tb[NL80211_KEY_DATA]);
|
|
k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
|
|
}
|
|
|
|
if (tb[NL80211_KEY_SEQ]) {
|
|
k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
|
|
k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
|
|
}
|
|
|
|
if (tb[NL80211_KEY_CIPHER])
|
|
k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
|
|
|
|
if (tb[NL80211_KEY_TYPE]) {
|
|
k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
|
|
if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
|
|
return genl_err_attr(info, -EINVAL,
|
|
tb[NL80211_KEY_TYPE]);
|
|
}
|
|
|
|
if (tb[NL80211_KEY_DEFAULT_TYPES]) {
|
|
struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
|
|
|
|
err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
|
|
tb[NL80211_KEY_DEFAULT_TYPES],
|
|
nl80211_key_default_policy,
|
|
info->extack);
|
|
if (err)
|
|
return err;
|
|
|
|
k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
|
|
k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
|
|
{
|
|
if (info->attrs[NL80211_ATTR_KEY_DATA]) {
|
|
k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
|
|
k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
|
|
k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
|
|
k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_KEY_IDX])
|
|
k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
|
|
|
|
if (info->attrs[NL80211_ATTR_KEY_CIPHER])
|
|
k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
|
|
|
|
k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
|
|
k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
|
|
|
|
if (k->def) {
|
|
k->def_uni = true;
|
|
k->def_multi = true;
|
|
}
|
|
if (k->defmgmt)
|
|
k->def_multi = true;
|
|
|
|
if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
|
|
k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
|
|
if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) {
|
|
GENL_SET_ERR_MSG(info, "key type out of range");
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
|
|
struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
|
|
int err = nla_parse_nested(kdt,
|
|
NUM_NL80211_KEY_DEFAULT_TYPES - 1,
|
|
info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
|
|
nl80211_key_default_policy,
|
|
info->extack);
|
|
if (err)
|
|
return err;
|
|
|
|
k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
|
|
k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
|
|
{
|
|
int err;
|
|
|
|
memset(k, 0, sizeof(*k));
|
|
k->idx = -1;
|
|
k->type = -1;
|
|
|
|
if (info->attrs[NL80211_ATTR_KEY])
|
|
err = nl80211_parse_key_new(info, info->attrs[NL80211_ATTR_KEY], k);
|
|
else
|
|
err = nl80211_parse_key_old(info, k);
|
|
|
|
if (err)
|
|
return err;
|
|
|
|
if (k->def && k->defmgmt) {
|
|
GENL_SET_ERR_MSG(info, "key with def && defmgmt is invalid");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (k->defmgmt) {
|
|
if (k->def_uni || !k->def_multi) {
|
|
GENL_SET_ERR_MSG(info, "defmgmt key must be mcast");
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
if (k->idx != -1) {
|
|
if (k->defmgmt) {
|
|
if (k->idx < 4 || k->idx > 5) {
|
|
GENL_SET_ERR_MSG(info,
|
|
"defmgmt key idx not 4 or 5");
|
|
return -EINVAL;
|
|
}
|
|
} else if (k->def) {
|
|
if (k->idx < 0 || k->idx > 3) {
|
|
GENL_SET_ERR_MSG(info, "def key idx not 0-3");
|
|
return -EINVAL;
|
|
}
|
|
} else {
|
|
if (k->idx < 0 || k->idx > 5) {
|
|
GENL_SET_ERR_MSG(info, "key idx not 0-5");
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct cfg80211_cached_keys *
|
|
nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
|
|
struct genl_info *info, bool *no_ht)
|
|
{
|
|
struct nlattr *keys = info->attrs[NL80211_ATTR_KEYS];
|
|
struct key_parse parse;
|
|
struct nlattr *key;
|
|
struct cfg80211_cached_keys *result;
|
|
int rem, err, def = 0;
|
|
bool have_key = false;
|
|
|
|
nla_for_each_nested(key, keys, rem) {
|
|
have_key = true;
|
|
break;
|
|
}
|
|
|
|
if (!have_key)
|
|
return NULL;
|
|
|
|
result = kzalloc(sizeof(*result), GFP_KERNEL);
|
|
if (!result)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
result->def = -1;
|
|
|
|
nla_for_each_nested(key, keys, rem) {
|
|
memset(&parse, 0, sizeof(parse));
|
|
parse.idx = -1;
|
|
|
|
err = nl80211_parse_key_new(info, key, &parse);
|
|
if (err)
|
|
goto error;
|
|
err = -EINVAL;
|
|
if (!parse.p.key)
|
|
goto error;
|
|
if (parse.idx < 0 || parse.idx > 3) {
|
|
GENL_SET_ERR_MSG(info, "key index out of range [0-3]");
|
|
goto error;
|
|
}
|
|
if (parse.def) {
|
|
if (def) {
|
|
GENL_SET_ERR_MSG(info,
|
|
"only one key can be default");
|
|
goto error;
|
|
}
|
|
def = 1;
|
|
result->def = parse.idx;
|
|
if (!parse.def_uni || !parse.def_multi)
|
|
goto error;
|
|
} else if (parse.defmgmt)
|
|
goto error;
|
|
err = cfg80211_validate_key_settings(rdev, &parse.p,
|
|
parse.idx, false, NULL);
|
|
if (err)
|
|
goto error;
|
|
if (parse.p.cipher != WLAN_CIPHER_SUITE_WEP40 &&
|
|
parse.p.cipher != WLAN_CIPHER_SUITE_WEP104) {
|
|
GENL_SET_ERR_MSG(info, "connect key must be WEP");
|
|
err = -EINVAL;
|
|
goto error;
|
|
}
|
|
result->params[parse.idx].cipher = parse.p.cipher;
|
|
result->params[parse.idx].key_len = parse.p.key_len;
|
|
result->params[parse.idx].key = result->data[parse.idx];
|
|
memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
|
|
|
|
/* must be WEP key if we got here */
|
|
if (no_ht)
|
|
*no_ht = true;
|
|
}
|
|
|
|
if (result->def < 0) {
|
|
err = -EINVAL;
|
|
GENL_SET_ERR_MSG(info, "need a default/TX key");
|
|
goto error;
|
|
}
|
|
|
|
return result;
|
|
error:
|
|
kfree(result);
|
|
return ERR_PTR(err);
|
|
}
|
|
|
|
static int nl80211_key_allowed(struct wireless_dev *wdev)
|
|
{
|
|
ASSERT_WDEV_LOCK(wdev);
|
|
|
|
switch (wdev->iftype) {
|
|
case NL80211_IFTYPE_AP:
|
|
case NL80211_IFTYPE_AP_VLAN:
|
|
case NL80211_IFTYPE_P2P_GO:
|
|
case NL80211_IFTYPE_MESH_POINT:
|
|
break;
|
|
case NL80211_IFTYPE_ADHOC:
|
|
case NL80211_IFTYPE_STATION:
|
|
case NL80211_IFTYPE_P2P_CLIENT:
|
|
if (!wdev->current_bss)
|
|
return -ENOLINK;
|
|
break;
|
|
case NL80211_IFTYPE_UNSPECIFIED:
|
|
case NL80211_IFTYPE_OCB:
|
|
case NL80211_IFTYPE_MONITOR:
|
|
case NL80211_IFTYPE_NAN:
|
|
case NL80211_IFTYPE_P2P_DEVICE:
|
|
case NL80211_IFTYPE_WDS:
|
|
case NUM_NL80211_IFTYPES:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
|
|
struct nlattr *tb)
|
|
{
|
|
struct ieee80211_channel *chan;
|
|
|
|
if (tb == NULL)
|
|
return NULL;
|
|
chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
|
|
if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
|
|
return NULL;
|
|
return chan;
|
|
}
|
|
|
|
static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
|
|
{
|
|
struct nlattr *nl_modes = nla_nest_start(msg, attr);
|
|
int i;
|
|
|
|
if (!nl_modes)
|
|
goto nla_put_failure;
|
|
|
|
i = 0;
|
|
while (ifmodes) {
|
|
if ((ifmodes & 1) && nla_put_flag(msg, i))
|
|
goto nla_put_failure;
|
|
ifmodes >>= 1;
|
|
i++;
|
|
}
|
|
|
|
nla_nest_end(msg, nl_modes);
|
|
return 0;
|
|
|
|
nla_put_failure:
|
|
return -ENOBUFS;
|
|
}
|
|
|
|
static int nl80211_put_iface_combinations(struct wiphy *wiphy,
|
|
struct sk_buff *msg,
|
|
bool large)
|
|
{
|
|
struct nlattr *nl_combis;
|
|
int i, j;
|
|
|
|
nl_combis = nla_nest_start(msg,
|
|
NL80211_ATTR_INTERFACE_COMBINATIONS);
|
|
if (!nl_combis)
|
|
goto nla_put_failure;
|
|
|
|
for (i = 0; i < wiphy->n_iface_combinations; i++) {
|
|
const struct ieee80211_iface_combination *c;
|
|
struct nlattr *nl_combi, *nl_limits;
|
|
|
|
c = &wiphy->iface_combinations[i];
|
|
|
|
nl_combi = nla_nest_start(msg, i + 1);
|
|
if (!nl_combi)
|
|
goto nla_put_failure;
|
|
|
|
nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
|
|
if (!nl_limits)
|
|
goto nla_put_failure;
|
|
|
|
for (j = 0; j < c->n_limits; j++) {
|
|
struct nlattr *nl_limit;
|
|
|
|
nl_limit = nla_nest_start(msg, j + 1);
|
|
if (!nl_limit)
|
|
goto nla_put_failure;
|
|
if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
|
|
c->limits[j].max))
|
|
goto nla_put_failure;
|
|
if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
|
|
c->limits[j].types))
|
|
goto nla_put_failure;
|
|
nla_nest_end(msg, nl_limit);
|
|
}
|
|
|
|
nla_nest_end(msg, nl_limits);
|
|
|
|
if (c->beacon_int_infra_match &&
|
|
nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
|
|
goto nla_put_failure;
|
|
if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
|
|
c->num_different_channels) ||
|
|
nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
|
|
c->max_interfaces))
|
|
goto nla_put_failure;
|
|
if (large &&
|
|
(nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
|
|
c->radar_detect_widths) ||
|
|
nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
|
|
c->radar_detect_regions)))
|
|
goto nla_put_failure;
|
|
if (c->beacon_int_min_gcd &&
|
|
nla_put_u32(msg, NL80211_IFACE_COMB_BI_MIN_GCD,
|
|
c->beacon_int_min_gcd))
|
|
goto nla_put_failure;
|
|
|
|
nla_nest_end(msg, nl_combi);
|
|
}
|
|
|
|
nla_nest_end(msg, nl_combis);
|
|
|
|
return 0;
|
|
nla_put_failure:
|
|
return -ENOBUFS;
|
|
}
|
|
|
|
#ifdef CONFIG_PM
|
|
static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
|
|
struct sk_buff *msg)
|
|
{
|
|
const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
|
|
struct nlattr *nl_tcp;
|
|
|
|
if (!tcp)
|
|
return 0;
|
|
|
|
nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
|
|
if (!nl_tcp)
|
|
return -ENOBUFS;
|
|
|
|
if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
|
|
tcp->data_payload_max))
|
|
return -ENOBUFS;
|
|
|
|
if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
|
|
tcp->data_payload_max))
|
|
return -ENOBUFS;
|
|
|
|
if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
|
|
return -ENOBUFS;
|
|
|
|
if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
|
|
sizeof(*tcp->tok), tcp->tok))
|
|
return -ENOBUFS;
|
|
|
|
if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
|
|
tcp->data_interval_max))
|
|
return -ENOBUFS;
|
|
|
|
if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
|
|
tcp->wake_payload_max))
|
|
return -ENOBUFS;
|
|
|
|
nla_nest_end(msg, nl_tcp);
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_send_wowlan(struct sk_buff *msg,
|
|
struct cfg80211_registered_device *rdev,
|
|
bool large)
|
|
{
|
|
struct nlattr *nl_wowlan;
|
|
|
|
if (!rdev->wiphy.wowlan)
|
|
return 0;
|
|
|
|
nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
|
|
if (!nl_wowlan)
|
|
return -ENOBUFS;
|
|
|
|
if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
|
|
((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
|
|
((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
|
|
((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
|
|
((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
|
|
((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
|
|
((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
|
|
((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
|
|
return -ENOBUFS;
|
|
|
|
if (rdev->wiphy.wowlan->n_patterns) {
|
|
struct nl80211_pattern_support pat = {
|
|
.max_patterns = rdev->wiphy.wowlan->n_patterns,
|
|
.min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
|
|
.max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
|
|
.max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
|
|
};
|
|
|
|
if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
|
|
sizeof(pat), &pat))
|
|
return -ENOBUFS;
|
|
}
|
|
|
|
if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
|
|
nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
|
|
rdev->wiphy.wowlan->max_nd_match_sets))
|
|
return -ENOBUFS;
|
|
|
|
if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
|
|
return -ENOBUFS;
|
|
|
|
nla_nest_end(msg, nl_wowlan);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static int nl80211_send_coalesce(struct sk_buff *msg,
|
|
struct cfg80211_registered_device *rdev)
|
|
{
|
|
struct nl80211_coalesce_rule_support rule;
|
|
|
|
if (!rdev->wiphy.coalesce)
|
|
return 0;
|
|
|
|
rule.max_rules = rdev->wiphy.coalesce->n_rules;
|
|
rule.max_delay = rdev->wiphy.coalesce->max_delay;
|
|
rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
|
|
rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
|
|
rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
|
|
rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
|
|
|
|
if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
|
|
return -ENOBUFS;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_send_band_rateinfo(struct sk_buff *msg,
|
|
struct ieee80211_supported_band *sband)
|
|
{
|
|
struct nlattr *nl_rates, *nl_rate;
|
|
struct ieee80211_rate *rate;
|
|
int i;
|
|
|
|
/* add HT info */
|
|
if (sband->ht_cap.ht_supported &&
|
|
(nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
|
|
sizeof(sband->ht_cap.mcs),
|
|
&sband->ht_cap.mcs) ||
|
|
nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
|
|
sband->ht_cap.cap) ||
|
|
nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
|
|
sband->ht_cap.ampdu_factor) ||
|
|
nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
|
|
sband->ht_cap.ampdu_density)))
|
|
return -ENOBUFS;
|
|
|
|
/* add VHT info */
|
|
if (sband->vht_cap.vht_supported &&
|
|
(nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
|
|
sizeof(sband->vht_cap.vht_mcs),
|
|
&sband->vht_cap.vht_mcs) ||
|
|
nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
|
|
sband->vht_cap.cap)))
|
|
return -ENOBUFS;
|
|
|
|
/* add bitrates */
|
|
nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
|
|
if (!nl_rates)
|
|
return -ENOBUFS;
|
|
|
|
for (i = 0; i < sband->n_bitrates; i++) {
|
|
nl_rate = nla_nest_start(msg, i);
|
|
if (!nl_rate)
|
|
return -ENOBUFS;
|
|
|
|
rate = &sband->bitrates[i];
|
|
if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
|
|
rate->bitrate))
|
|
return -ENOBUFS;
|
|
if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
|
|
nla_put_flag(msg,
|
|
NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
|
|
return -ENOBUFS;
|
|
|
|
nla_nest_end(msg, nl_rate);
|
|
}
|
|
|
|
nla_nest_end(msg, nl_rates);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
nl80211_send_mgmt_stypes(struct sk_buff *msg,
|
|
const struct ieee80211_txrx_stypes *mgmt_stypes)
|
|
{
|
|
u16 stypes;
|
|
struct nlattr *nl_ftypes, *nl_ifs;
|
|
enum nl80211_iftype ift;
|
|
int i;
|
|
|
|
if (!mgmt_stypes)
|
|
return 0;
|
|
|
|
nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
|
|
if (!nl_ifs)
|
|
return -ENOBUFS;
|
|
|
|
for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
|
|
nl_ftypes = nla_nest_start(msg, ift);
|
|
if (!nl_ftypes)
|
|
return -ENOBUFS;
|
|
i = 0;
|
|
stypes = mgmt_stypes[ift].tx;
|
|
while (stypes) {
|
|
if ((stypes & 1) &&
|
|
nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
|
|
(i << 4) | IEEE80211_FTYPE_MGMT))
|
|
return -ENOBUFS;
|
|
stypes >>= 1;
|
|
i++;
|
|
}
|
|
nla_nest_end(msg, nl_ftypes);
|
|
}
|
|
|
|
nla_nest_end(msg, nl_ifs);
|
|
|
|
nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
|
|
if (!nl_ifs)
|
|
return -ENOBUFS;
|
|
|
|
for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
|
|
nl_ftypes = nla_nest_start(msg, ift);
|
|
if (!nl_ftypes)
|
|
return -ENOBUFS;
|
|
i = 0;
|
|
stypes = mgmt_stypes[ift].rx;
|
|
while (stypes) {
|
|
if ((stypes & 1) &&
|
|
nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
|
|
(i << 4) | IEEE80211_FTYPE_MGMT))
|
|
return -ENOBUFS;
|
|
stypes >>= 1;
|
|
i++;
|
|
}
|
|
nla_nest_end(msg, nl_ftypes);
|
|
}
|
|
nla_nest_end(msg, nl_ifs);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define CMD(op, n) \
|
|
do { \
|
|
if (rdev->ops->op) { \
|
|
i++; \
|
|
if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
|
|
goto nla_put_failure; \
|
|
} \
|
|
} while (0)
|
|
|
|
static int nl80211_add_commands_unsplit(struct cfg80211_registered_device *rdev,
|
|
struct sk_buff *msg)
|
|
{
|
|
int i = 0;
|
|
|
|
/*
|
|
* do *NOT* add anything into this function, new things need to be
|
|
* advertised only to new versions of userspace that can deal with
|
|
* the split (and they can't possibly care about new features...
|
|
*/
|
|
CMD(add_virtual_intf, NEW_INTERFACE);
|
|
CMD(change_virtual_intf, SET_INTERFACE);
|
|
CMD(add_key, NEW_KEY);
|
|
CMD(start_ap, START_AP);
|
|
CMD(add_station, NEW_STATION);
|
|
CMD(add_mpath, NEW_MPATH);
|
|
CMD(update_mesh_config, SET_MESH_CONFIG);
|
|
CMD(change_bss, SET_BSS);
|
|
CMD(auth, AUTHENTICATE);
|
|
CMD(assoc, ASSOCIATE);
|
|
CMD(deauth, DEAUTHENTICATE);
|
|
CMD(disassoc, DISASSOCIATE);
|
|
CMD(join_ibss, JOIN_IBSS);
|
|
CMD(join_mesh, JOIN_MESH);
|
|
CMD(set_pmksa, SET_PMKSA);
|
|
CMD(del_pmksa, DEL_PMKSA);
|
|
CMD(flush_pmksa, FLUSH_PMKSA);
|
|
if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
|
|
CMD(remain_on_channel, REMAIN_ON_CHANNEL);
|
|
CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
|
|
CMD(mgmt_tx, FRAME);
|
|
CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
|
|
if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
|
|
i++;
|
|
if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
|
|
goto nla_put_failure;
|
|
}
|
|
if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
|
|
rdev->ops->join_mesh) {
|
|
i++;
|
|
if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
|
|
goto nla_put_failure;
|
|
}
|
|
CMD(set_wds_peer, SET_WDS_PEER);
|
|
if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
|
|
CMD(tdls_mgmt, TDLS_MGMT);
|
|
CMD(tdls_oper, TDLS_OPER);
|
|
}
|
|
if (rdev->wiphy.max_sched_scan_reqs)
|
|
CMD(sched_scan_start, START_SCHED_SCAN);
|
|
CMD(probe_client, PROBE_CLIENT);
|
|
CMD(set_noack_map, SET_NOACK_MAP);
|
|
if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
|
|
i++;
|
|
if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
|
|
goto nla_put_failure;
|
|
}
|
|
CMD(start_p2p_device, START_P2P_DEVICE);
|
|
CMD(set_mcast_rate, SET_MCAST_RATE);
|
|
#ifdef CONFIG_NL80211_TESTMODE
|
|
CMD(testmode_cmd, TESTMODE);
|
|
#endif
|
|
|
|
if (rdev->ops->connect || rdev->ops->auth) {
|
|
i++;
|
|
if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
|
|
goto nla_put_failure;
|
|
}
|
|
|
|
if (rdev->ops->disconnect || rdev->ops->deauth) {
|
|
i++;
|
|
if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
|
|
goto nla_put_failure;
|
|
}
|
|
|
|
return i;
|
|
nla_put_failure:
|
|
return -ENOBUFS;
|
|
}
|
|
|
|
struct nl80211_dump_wiphy_state {
|
|
s64 filter_wiphy;
|
|
long start;
|
|
long split_start, band_start, chan_start, capa_start;
|
|
bool split;
|
|
};
|
|
|
|
static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
|
|
enum nl80211_commands cmd,
|
|
struct sk_buff *msg, u32 portid, u32 seq,
|
|
int flags, struct nl80211_dump_wiphy_state *state)
|
|
{
|
|
void *hdr;
|
|
struct nlattr *nl_bands, *nl_band;
|
|
struct nlattr *nl_freqs, *nl_freq;
|
|
struct nlattr *nl_cmds;
|
|
enum nl80211_band band;
|
|
struct ieee80211_channel *chan;
|
|
int i;
|
|
const struct ieee80211_txrx_stypes *mgmt_stypes =
|
|
rdev->wiphy.mgmt_stypes;
|
|
u32 features;
|
|
|
|
hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
|
|
if (!hdr)
|
|
return -ENOBUFS;
|
|
|
|
if (WARN_ON(!state))
|
|
return -EINVAL;
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
|
|
nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
|
|
wiphy_name(&rdev->wiphy)) ||
|
|
nla_put_u32(msg, NL80211_ATTR_GENERATION,
|
|
cfg80211_rdev_list_generation))
|
|
goto nla_put_failure;
|
|
|
|
if (cmd != NL80211_CMD_NEW_WIPHY)
|
|
goto finish;
|
|
|
|
switch (state->split_start) {
|
|
case 0:
|
|
if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
|
|
rdev->wiphy.retry_short) ||
|
|
nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
|
|
rdev->wiphy.retry_long) ||
|
|
nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
|
|
rdev->wiphy.frag_threshold) ||
|
|
nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
|
|
rdev->wiphy.rts_threshold) ||
|
|
nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
|
|
rdev->wiphy.coverage_class) ||
|
|
nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
|
|
rdev->wiphy.max_scan_ssids) ||
|
|
nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
|
|
rdev->wiphy.max_sched_scan_ssids) ||
|
|
nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
|
|
rdev->wiphy.max_scan_ie_len) ||
|
|
nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
|
|
rdev->wiphy.max_sched_scan_ie_len) ||
|
|
nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
|
|
rdev->wiphy.max_match_sets) ||
|
|
nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
|
|
rdev->wiphy.max_sched_scan_plans) ||
|
|
nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
|
|
rdev->wiphy.max_sched_scan_plan_interval) ||
|
|
nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
|
|
rdev->wiphy.max_sched_scan_plan_iterations))
|
|
goto nla_put_failure;
|
|
|
|
if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
|
|
nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
|
|
goto nla_put_failure;
|
|
if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
|
|
nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
|
|
goto nla_put_failure;
|
|
if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
|
|
nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
|
|
goto nla_put_failure;
|
|
if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
|
|
nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
|
|
goto nla_put_failure;
|
|
if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
|
|
nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
|
|
goto nla_put_failure;
|
|
if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
|
|
nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
|
|
goto nla_put_failure;
|
|
state->split_start++;
|
|
if (state->split)
|
|
break;
|
|
case 1:
|
|
if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
|
|
sizeof(u32) * rdev->wiphy.n_cipher_suites,
|
|
rdev->wiphy.cipher_suites))
|
|
goto nla_put_failure;
|
|
|
|
if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
|
|
rdev->wiphy.max_num_pmkids))
|
|
goto nla_put_failure;
|
|
|
|
if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
|
|
nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
|
|
goto nla_put_failure;
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
|
|
rdev->wiphy.available_antennas_tx) ||
|
|
nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
|
|
rdev->wiphy.available_antennas_rx))
|
|
goto nla_put_failure;
|
|
|
|
if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
|
|
nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
|
|
rdev->wiphy.probe_resp_offload))
|
|
goto nla_put_failure;
|
|
|
|
if ((rdev->wiphy.available_antennas_tx ||
|
|
rdev->wiphy.available_antennas_rx) &&
|
|
rdev->ops->get_antenna) {
|
|
u32 tx_ant = 0, rx_ant = 0;
|
|
int res;
|
|
|
|
res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
|
|
if (!res) {
|
|
if (nla_put_u32(msg,
|
|
NL80211_ATTR_WIPHY_ANTENNA_TX,
|
|
tx_ant) ||
|
|
nla_put_u32(msg,
|
|
NL80211_ATTR_WIPHY_ANTENNA_RX,
|
|
rx_ant))
|
|
goto nla_put_failure;
|
|
}
|
|
}
|
|
|
|
state->split_start++;
|
|
if (state->split)
|
|
break;
|
|
case 2:
|
|
if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
|
|
rdev->wiphy.interface_modes))
|
|
goto nla_put_failure;
|
|
state->split_start++;
|
|
if (state->split)
|
|
break;
|
|
case 3:
|
|
nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
|
|
if (!nl_bands)
|
|
goto nla_put_failure;
|
|
|
|
for (band = state->band_start;
|
|
band < NUM_NL80211_BANDS; band++) {
|
|
struct ieee80211_supported_band *sband;
|
|
|
|
sband = rdev->wiphy.bands[band];
|
|
|
|
if (!sband)
|
|
continue;
|
|
|
|
nl_band = nla_nest_start(msg, band);
|
|
if (!nl_band)
|
|
goto nla_put_failure;
|
|
|
|
switch (state->chan_start) {
|
|
case 0:
|
|
if (nl80211_send_band_rateinfo(msg, sband))
|
|
goto nla_put_failure;
|
|
state->chan_start++;
|
|
if (state->split)
|
|
break;
|
|
default:
|
|
/* add frequencies */
|
|
nl_freqs = nla_nest_start(
|
|
msg, NL80211_BAND_ATTR_FREQS);
|
|
if (!nl_freqs)
|
|
goto nla_put_failure;
|
|
|
|
for (i = state->chan_start - 1;
|
|
i < sband->n_channels;
|
|
i++) {
|
|
nl_freq = nla_nest_start(msg, i);
|
|
if (!nl_freq)
|
|
goto nla_put_failure;
|
|
|
|
chan = &sband->channels[i];
|
|
|
|
if (nl80211_msg_put_channel(
|
|
msg, chan,
|
|
state->split))
|
|
goto nla_put_failure;
|
|
|
|
nla_nest_end(msg, nl_freq);
|
|
if (state->split)
|
|
break;
|
|
}
|
|
if (i < sband->n_channels)
|
|
state->chan_start = i + 2;
|
|
else
|
|
state->chan_start = 0;
|
|
nla_nest_end(msg, nl_freqs);
|
|
}
|
|
|
|
nla_nest_end(msg, nl_band);
|
|
|
|
if (state->split) {
|
|
/* start again here */
|
|
if (state->chan_start)
|
|
band--;
|
|
break;
|
|
}
|
|
}
|
|
nla_nest_end(msg, nl_bands);
|
|
|
|
if (band < NUM_NL80211_BANDS)
|
|
state->band_start = band + 1;
|
|
else
|
|
state->band_start = 0;
|
|
|
|
/* if bands & channels are done, continue outside */
|
|
if (state->band_start == 0 && state->chan_start == 0)
|
|
state->split_start++;
|
|
if (state->split)
|
|
break;
|
|
case 4:
|
|
nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
|
|
if (!nl_cmds)
|
|
goto nla_put_failure;
|
|
|
|
i = nl80211_add_commands_unsplit(rdev, msg);
|
|
if (i < 0)
|
|
goto nla_put_failure;
|
|
if (state->split) {
|
|
CMD(crit_proto_start, CRIT_PROTOCOL_START);
|
|
CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
|
|
if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
|
|
CMD(channel_switch, CHANNEL_SWITCH);
|
|
CMD(set_qos_map, SET_QOS_MAP);
|
|
if (rdev->wiphy.features &
|
|
NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
|
|
CMD(add_tx_ts, ADD_TX_TS);
|
|
CMD(set_multicast_to_unicast, SET_MULTICAST_TO_UNICAST);
|
|
CMD(update_connect_params, UPDATE_CONNECT_PARAMS);
|
|
}
|
|
#undef CMD
|
|
|
|
nla_nest_end(msg, nl_cmds);
|
|
state->split_start++;
|
|
if (state->split)
|
|
break;
|
|
case 5:
|
|
if (rdev->ops->remain_on_channel &&
|
|
(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
|
|
nla_put_u32(msg,
|
|
NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
|
|
rdev->wiphy.max_remain_on_channel_duration))
|
|
goto nla_put_failure;
|
|
|
|
if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
|
|
nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
|
|
goto nla_put_failure;
|
|
|
|
if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
|
|
goto nla_put_failure;
|
|
state->split_start++;
|
|
if (state->split)
|
|
break;
|
|
case 6:
|
|
#ifdef CONFIG_PM
|
|
if (nl80211_send_wowlan(msg, rdev, state->split))
|
|
goto nla_put_failure;
|
|
state->split_start++;
|
|
if (state->split)
|
|
break;
|
|
#else
|
|
state->split_start++;
|
|
#endif
|
|
case 7:
|
|
if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
|
|
rdev->wiphy.software_iftypes))
|
|
goto nla_put_failure;
|
|
|
|
if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
|
|
state->split))
|
|
goto nla_put_failure;
|
|
|
|
state->split_start++;
|
|
if (state->split)
|
|
break;
|
|
case 8:
|
|
if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
|
|
nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
|
|
rdev->wiphy.ap_sme_capa))
|
|
goto nla_put_failure;
|
|
|
|
features = rdev->wiphy.features;
|
|
/*
|
|
* We can only add the per-channel limit information if the
|
|
* dump is split, otherwise it makes it too big. Therefore
|
|
* only advertise it in that case.
|
|
*/
|
|
if (state->split)
|
|
features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
|
|
if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
|
|
goto nla_put_failure;
|
|
|
|
if (rdev->wiphy.ht_capa_mod_mask &&
|
|
nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
|
|
sizeof(*rdev->wiphy.ht_capa_mod_mask),
|
|
rdev->wiphy.ht_capa_mod_mask))
|
|
goto nla_put_failure;
|
|
|
|
if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
|
|
rdev->wiphy.max_acl_mac_addrs &&
|
|
nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
|
|
rdev->wiphy.max_acl_mac_addrs))
|
|
goto nla_put_failure;
|
|
|
|
/*
|
|
* Any information below this point is only available to
|
|
* applications that can deal with it being split. This
|
|
* helps ensure that newly added capabilities don't break
|
|
* older tools by overrunning their buffers.
|
|
*
|
|
* We still increment split_start so that in the split
|
|
* case we'll continue with more data in the next round,
|
|
* but break unconditionally so unsplit data stops here.
|
|
*/
|
|
state->split_start++;
|
|
break;
|
|
case 9:
|
|
if (rdev->wiphy.extended_capabilities &&
|
|
(nla_put(msg, NL80211_ATTR_EXT_CAPA,
|
|
rdev->wiphy.extended_capabilities_len,
|
|
rdev->wiphy.extended_capabilities) ||
|
|
nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
|
|
rdev->wiphy.extended_capabilities_len,
|
|
rdev->wiphy.extended_capabilities_mask)))
|
|
goto nla_put_failure;
|
|
|
|
if (rdev->wiphy.vht_capa_mod_mask &&
|
|
nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
|
|
sizeof(*rdev->wiphy.vht_capa_mod_mask),
|
|
rdev->wiphy.vht_capa_mod_mask))
|
|
goto nla_put_failure;
|
|
|
|
state->split_start++;
|
|
break;
|
|
case 10:
|
|
if (nl80211_send_coalesce(msg, rdev))
|
|
goto nla_put_failure;
|
|
|
|
if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
|
|
(nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
|
|
nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
|
|
goto nla_put_failure;
|
|
|
|
if (rdev->wiphy.max_ap_assoc_sta &&
|
|
nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
|
|
rdev->wiphy.max_ap_assoc_sta))
|
|
goto nla_put_failure;
|
|
|
|
state->split_start++;
|
|
break;
|
|
case 11:
|
|
if (rdev->wiphy.n_vendor_commands) {
|
|
const struct nl80211_vendor_cmd_info *info;
|
|
struct nlattr *nested;
|
|
|
|
nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
|
|
if (!nested)
|
|
goto nla_put_failure;
|
|
|
|
for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
|
|
info = &rdev->wiphy.vendor_commands[i].info;
|
|
if (nla_put(msg, i + 1, sizeof(*info), info))
|
|
goto nla_put_failure;
|
|
}
|
|
nla_nest_end(msg, nested);
|
|
}
|
|
|
|
if (rdev->wiphy.n_vendor_events) {
|
|
const struct nl80211_vendor_cmd_info *info;
|
|
struct nlattr *nested;
|
|
|
|
nested = nla_nest_start(msg,
|
|
NL80211_ATTR_VENDOR_EVENTS);
|
|
if (!nested)
|
|
goto nla_put_failure;
|
|
|
|
for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
|
|
info = &rdev->wiphy.vendor_events[i];
|
|
if (nla_put(msg, i + 1, sizeof(*info), info))
|
|
goto nla_put_failure;
|
|
}
|
|
nla_nest_end(msg, nested);
|
|
}
|
|
state->split_start++;
|
|
break;
|
|
case 12:
|
|
if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
|
|
nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
|
|
rdev->wiphy.max_num_csa_counters))
|
|
goto nla_put_failure;
|
|
|
|
if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
|
|
nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
|
|
goto nla_put_failure;
|
|
|
|
if (rdev->wiphy.max_sched_scan_reqs &&
|
|
nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_MAX_REQS,
|
|
rdev->wiphy.max_sched_scan_reqs))
|
|
goto nla_put_failure;
|
|
|
|
if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
|
|
sizeof(rdev->wiphy.ext_features),
|
|
rdev->wiphy.ext_features))
|
|
goto nla_put_failure;
|
|
|
|
if (rdev->wiphy.bss_select_support) {
|
|
struct nlattr *nested;
|
|
u32 bss_select_support = rdev->wiphy.bss_select_support;
|
|
|
|
nested = nla_nest_start(msg, NL80211_ATTR_BSS_SELECT);
|
|
if (!nested)
|
|
goto nla_put_failure;
|
|
|
|
i = 0;
|
|
while (bss_select_support) {
|
|
if ((bss_select_support & 1) &&
|
|
nla_put_flag(msg, i))
|
|
goto nla_put_failure;
|
|
i++;
|
|
bss_select_support >>= 1;
|
|
}
|
|
nla_nest_end(msg, nested);
|
|
}
|
|
|
|
state->split_start++;
|
|
break;
|
|
case 13:
|
|
if (rdev->wiphy.num_iftype_ext_capab &&
|
|
rdev->wiphy.iftype_ext_capab) {
|
|
struct nlattr *nested_ext_capab, *nested;
|
|
|
|
nested = nla_nest_start(msg,
|
|
NL80211_ATTR_IFTYPE_EXT_CAPA);
|
|
if (!nested)
|
|
goto nla_put_failure;
|
|
|
|
for (i = state->capa_start;
|
|
i < rdev->wiphy.num_iftype_ext_capab; i++) {
|
|
const struct wiphy_iftype_ext_capab *capab;
|
|
|
|
capab = &rdev->wiphy.iftype_ext_capab[i];
|
|
|
|
nested_ext_capab = nla_nest_start(msg, i);
|
|
if (!nested_ext_capab ||
|
|
nla_put_u32(msg, NL80211_ATTR_IFTYPE,
|
|
capab->iftype) ||
|
|
nla_put(msg, NL80211_ATTR_EXT_CAPA,
|
|
capab->extended_capabilities_len,
|
|
capab->extended_capabilities) ||
|
|
nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
|
|
capab->extended_capabilities_len,
|
|
capab->extended_capabilities_mask))
|
|
goto nla_put_failure;
|
|
|
|
nla_nest_end(msg, nested_ext_capab);
|
|
if (state->split)
|
|
break;
|
|
}
|
|
nla_nest_end(msg, nested);
|
|
if (i < rdev->wiphy.num_iftype_ext_capab) {
|
|
state->capa_start = i + 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_BANDS,
|
|
rdev->wiphy.nan_supported_bands))
|
|
goto nla_put_failure;
|
|
|
|
/* done */
|
|
state->split_start = 0;
|
|
break;
|
|
}
|
|
finish:
|
|
genlmsg_end(msg, hdr);
|
|
return 0;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
|
|
struct netlink_callback *cb,
|
|
struct nl80211_dump_wiphy_state *state)
|
|
{
|
|
struct nlattr **tb = genl_family_attrbuf(&nl80211_fam);
|
|
int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, tb,
|
|
nl80211_fam.maxattr, nl80211_policy, NULL);
|
|
/* ignore parse errors for backward compatibility */
|
|
if (ret)
|
|
return 0;
|
|
|
|
state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
|
|
if (tb[NL80211_ATTR_WIPHY])
|
|
state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
|
|
if (tb[NL80211_ATTR_WDEV])
|
|
state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
|
|
if (tb[NL80211_ATTR_IFINDEX]) {
|
|
struct net_device *netdev;
|
|
struct cfg80211_registered_device *rdev;
|
|
int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
|
|
|
|
netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
|
|
if (!netdev)
|
|
return -ENODEV;
|
|
if (netdev->ieee80211_ptr) {
|
|
rdev = wiphy_to_rdev(
|
|
netdev->ieee80211_ptr->wiphy);
|
|
state->filter_wiphy = rdev->wiphy_idx;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
|
|
{
|
|
int idx = 0, ret;
|
|
struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
|
|
struct cfg80211_registered_device *rdev;
|
|
|
|
rtnl_lock();
|
|
if (!state) {
|
|
state = kzalloc(sizeof(*state), GFP_KERNEL);
|
|
if (!state) {
|
|
rtnl_unlock();
|
|
return -ENOMEM;
|
|
}
|
|
state->filter_wiphy = -1;
|
|
ret = nl80211_dump_wiphy_parse(skb, cb, state);
|
|
if (ret) {
|
|
kfree(state);
|
|
rtnl_unlock();
|
|
return ret;
|
|
}
|
|
cb->args[0] = (long)state;
|
|
}
|
|
|
|
list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
|
|
if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
|
|
continue;
|
|
if (++idx <= state->start)
|
|
continue;
|
|
if (state->filter_wiphy != -1 &&
|
|
state->filter_wiphy != rdev->wiphy_idx)
|
|
continue;
|
|
/* attempt to fit multiple wiphy data chunks into the skb */
|
|
do {
|
|
ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
|
|
skb,
|
|
NETLINK_CB(cb->skb).portid,
|
|
cb->nlh->nlmsg_seq,
|
|
NLM_F_MULTI, state);
|
|
if (ret < 0) {
|
|
/*
|
|
* If sending the wiphy data didn't fit (ENOBUFS
|
|
* or EMSGSIZE returned), this SKB is still
|
|
* empty (so it's not too big because another
|
|
* wiphy dataset is already in the skb) and
|
|
* we've not tried to adjust the dump allocation
|
|
* yet ... then adjust the alloc size to be
|
|
* bigger, and return 1 but with the empty skb.
|
|
* This results in an empty message being RX'ed
|
|
* in userspace, but that is ignored.
|
|
*
|
|
* We can then retry with the larger buffer.
|
|
*/
|
|
if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
|
|
!skb->len && !state->split &&
|
|
cb->min_dump_alloc < 4096) {
|
|
cb->min_dump_alloc = 4096;
|
|
state->split_start = 0;
|
|
rtnl_unlock();
|
|
return 1;
|
|
}
|
|
idx--;
|
|
break;
|
|
}
|
|
} while (state->split_start > 0);
|
|
break;
|
|
}
|
|
rtnl_unlock();
|
|
|
|
state->start = idx;
|
|
|
|
return skb->len;
|
|
}
|
|
|
|
static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
|
|
{
|
|
kfree((void *)cb->args[0]);
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct sk_buff *msg;
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct nl80211_dump_wiphy_state state = {};
|
|
|
|
msg = nlmsg_new(4096, GFP_KERNEL);
|
|
if (!msg)
|
|
return -ENOMEM;
|
|
|
|
if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
|
|
info->snd_portid, info->snd_seq, 0,
|
|
&state) < 0) {
|
|
nlmsg_free(msg);
|
|
return -ENOBUFS;
|
|
}
|
|
|
|
return genlmsg_reply(msg, info);
|
|
}
|
|
|
|
static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
|
|
[NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
|
|
[NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
|
|
[NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
|
|
[NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
|
|
[NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
|
|
};
|
|
|
|
static int parse_txq_params(struct nlattr *tb[],
|
|
struct ieee80211_txq_params *txq_params)
|
|
{
|
|
u8 ac;
|
|
|
|
if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
|
|
!tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
|
|
!tb[NL80211_TXQ_ATTR_AIFS])
|
|
return -EINVAL;
|
|
|
|
ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
|
|
txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
|
|
txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
|
|
txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
|
|
txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
|
|
|
|
if (ac >= NL80211_NUM_ACS)
|
|
return -EINVAL;
|
|
txq_params->ac = array_index_nospec(ac, NL80211_NUM_ACS);
|
|
return 0;
|
|
}
|
|
|
|
static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
|
|
{
|
|
/*
|
|
* You can only set the channel explicitly for WDS interfaces,
|
|
* all others have their channel managed via their respective
|
|
* "establish a connection" command (connect, join, ...)
|
|
*
|
|
* For AP/GO and mesh mode, the channel can be set with the
|
|
* channel userspace API, but is only stored and passed to the
|
|
* low-level driver when the AP starts or the mesh is joined.
|
|
* This is for backward compatibility, userspace can also give
|
|
* the channel in the start-ap or join-mesh commands instead.
|
|
*
|
|
* Monitors are special as they are normally slaved to
|
|
* whatever else is going on, so they have their own special
|
|
* operation to set the monitor channel if possible.
|
|
*/
|
|
return !wdev ||
|
|
wdev->iftype == NL80211_IFTYPE_AP ||
|
|
wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
|
|
wdev->iftype == NL80211_IFTYPE_MONITOR ||
|
|
wdev->iftype == NL80211_IFTYPE_P2P_GO;
|
|
}
|
|
|
|
static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
|
|
struct genl_info *info,
|
|
struct cfg80211_chan_def *chandef)
|
|
{
|
|
u32 control_freq;
|
|
|
|
if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
|
|
return -EINVAL;
|
|
|
|
control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
|
|
|
|
chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
|
|
chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
|
|
chandef->center_freq1 = control_freq;
|
|
chandef->center_freq2 = 0;
|
|
|
|
/* Primary channel not allowed */
|
|
if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
|
|
return -EINVAL;
|
|
|
|
if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
|
|
enum nl80211_channel_type chantype;
|
|
|
|
chantype = nla_get_u32(
|
|
info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
|
|
|
|
switch (chantype) {
|
|
case NL80211_CHAN_NO_HT:
|
|
case NL80211_CHAN_HT20:
|
|
case NL80211_CHAN_HT40PLUS:
|
|
case NL80211_CHAN_HT40MINUS:
|
|
cfg80211_chandef_create(chandef, chandef->chan,
|
|
chantype);
|
|
/* user input for center_freq is incorrect */
|
|
if (info->attrs[NL80211_ATTR_CENTER_FREQ1] &&
|
|
chandef->center_freq1 != nla_get_u32(
|
|
info->attrs[NL80211_ATTR_CENTER_FREQ1]))
|
|
return -EINVAL;
|
|
/* center_freq2 must be zero */
|
|
if (info->attrs[NL80211_ATTR_CENTER_FREQ2] &&
|
|
nla_get_u32(info->attrs[NL80211_ATTR_CENTER_FREQ2]))
|
|
return -EINVAL;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
} else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
|
|
chandef->width =
|
|
nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
|
|
if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
|
|
chandef->center_freq1 =
|
|
nla_get_u32(
|
|
info->attrs[NL80211_ATTR_CENTER_FREQ1]);
|
|
if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
|
|
chandef->center_freq2 =
|
|
nla_get_u32(
|
|
info->attrs[NL80211_ATTR_CENTER_FREQ2]);
|
|
}
|
|
|
|
if (!cfg80211_chandef_valid(chandef))
|
|
return -EINVAL;
|
|
|
|
if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
|
|
IEEE80211_CHAN_DISABLED))
|
|
return -EINVAL;
|
|
|
|
if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
|
|
chandef->width == NL80211_CHAN_WIDTH_10) &&
|
|
!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
|
|
struct net_device *dev,
|
|
struct genl_info *info)
|
|
{
|
|
struct cfg80211_chan_def chandef;
|
|
int result;
|
|
enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
|
|
struct wireless_dev *wdev = NULL;
|
|
|
|
if (dev)
|
|
wdev = dev->ieee80211_ptr;
|
|
if (!nl80211_can_set_dev_channel(wdev))
|
|
return -EOPNOTSUPP;
|
|
if (wdev)
|
|
iftype = wdev->iftype;
|
|
|
|
result = nl80211_parse_chandef(rdev, info, &chandef);
|
|
if (result)
|
|
return result;
|
|
|
|
switch (iftype) {
|
|
case NL80211_IFTYPE_AP:
|
|
case NL80211_IFTYPE_P2P_GO:
|
|
if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
|
|
iftype)) {
|
|
result = -EINVAL;
|
|
break;
|
|
}
|
|
if (wdev->beacon_interval) {
|
|
if (!dev || !rdev->ops->set_ap_chanwidth ||
|
|
!(rdev->wiphy.features &
|
|
NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
|
|
result = -EBUSY;
|
|
break;
|
|
}
|
|
|
|
/* Only allow dynamic channel width changes */
|
|
if (chandef.chan != wdev->preset_chandef.chan) {
|
|
result = -EBUSY;
|
|
break;
|
|
}
|
|
result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
|
|
if (result)
|
|
break;
|
|
}
|
|
wdev->preset_chandef = chandef;
|
|
result = 0;
|
|
break;
|
|
case NL80211_IFTYPE_MESH_POINT:
|
|
result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
|
|
break;
|
|
case NL80211_IFTYPE_MONITOR:
|
|
result = cfg80211_set_monitor_channel(rdev, &chandef);
|
|
break;
|
|
default:
|
|
result = -EINVAL;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *netdev = info->user_ptr[1];
|
|
|
|
return __nl80211_set_channel(rdev, netdev, info);
|
|
}
|
|
|
|
static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
const u8 *bssid;
|
|
|
|
if (!info->attrs[NL80211_ATTR_MAC])
|
|
return -EINVAL;
|
|
|
|
if (netif_running(dev))
|
|
return -EBUSY;
|
|
|
|
if (!rdev->ops->set_wds_peer)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (wdev->iftype != NL80211_IFTYPE_WDS)
|
|
return -EOPNOTSUPP;
|
|
|
|
bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
return rdev_set_wds_peer(rdev, dev, bssid);
|
|
}
|
|
|
|
static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev;
|
|
struct net_device *netdev = NULL;
|
|
struct wireless_dev *wdev;
|
|
int result = 0, rem_txq_params = 0;
|
|
struct nlattr *nl_txq_params;
|
|
u32 changed;
|
|
u8 retry_short = 0, retry_long = 0;
|
|
u32 frag_threshold = 0, rts_threshold = 0;
|
|
u8 coverage_class = 0;
|
|
|
|
ASSERT_RTNL();
|
|
|
|
/*
|
|
* Try to find the wiphy and netdev. Normally this
|
|
* function shouldn't need the netdev, but this is
|
|
* done for backward compatibility -- previously
|
|
* setting the channel was done per wiphy, but now
|
|
* it is per netdev. Previous userland like hostapd
|
|
* also passed a netdev to set_wiphy, so that it is
|
|
* possible to let that go to the right netdev!
|
|
*/
|
|
|
|
if (info->attrs[NL80211_ATTR_IFINDEX]) {
|
|
int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
|
|
|
|
netdev = __dev_get_by_index(genl_info_net(info), ifindex);
|
|
if (netdev && netdev->ieee80211_ptr)
|
|
rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
|
|
else
|
|
netdev = NULL;
|
|
}
|
|
|
|
if (!netdev) {
|
|
rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
|
|
info->attrs);
|
|
if (IS_ERR(rdev))
|
|
return PTR_ERR(rdev);
|
|
wdev = NULL;
|
|
netdev = NULL;
|
|
result = 0;
|
|
} else
|
|
wdev = netdev->ieee80211_ptr;
|
|
|
|
/*
|
|
* end workaround code, by now the rdev is available
|
|
* and locked, and wdev may or may not be NULL.
|
|
*/
|
|
|
|
if (info->attrs[NL80211_ATTR_WIPHY_NAME])
|
|
result = cfg80211_dev_rename(
|
|
rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
|
|
|
|
if (result)
|
|
return result;
|
|
|
|
if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
|
|
struct ieee80211_txq_params txq_params;
|
|
struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
|
|
|
|
if (!rdev->ops->set_txq_params)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!netdev)
|
|
return -EINVAL;
|
|
|
|
if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
|
|
netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
|
|
return -EINVAL;
|
|
|
|
if (!netif_running(netdev))
|
|
return -ENETDOWN;
|
|
|
|
nla_for_each_nested(nl_txq_params,
|
|
info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
|
|
rem_txq_params) {
|
|
result = nla_parse_nested(tb, NL80211_TXQ_ATTR_MAX,
|
|
nl_txq_params,
|
|
txq_params_policy,
|
|
info->extack);
|
|
if (result)
|
|
return result;
|
|
result = parse_txq_params(tb, &txq_params);
|
|
if (result)
|
|
return result;
|
|
|
|
result = rdev_set_txq_params(rdev, netdev,
|
|
&txq_params);
|
|
if (result)
|
|
return result;
|
|
}
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
|
|
result = __nl80211_set_channel(
|
|
rdev,
|
|
nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
|
|
info);
|
|
if (result)
|
|
return result;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
|
|
struct wireless_dev *txp_wdev = wdev;
|
|
enum nl80211_tx_power_setting type;
|
|
int idx, mbm = 0;
|
|
|
|
if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
|
|
txp_wdev = NULL;
|
|
|
|
if (!rdev->ops->set_tx_power)
|
|
return -EOPNOTSUPP;
|
|
|
|
idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
|
|
type = nla_get_u32(info->attrs[idx]);
|
|
|
|
if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
|
|
(type != NL80211_TX_POWER_AUTOMATIC))
|
|
return -EINVAL;
|
|
|
|
if (type != NL80211_TX_POWER_AUTOMATIC) {
|
|
idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
|
|
mbm = nla_get_u32(info->attrs[idx]);
|
|
}
|
|
|
|
result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
|
|
if (result)
|
|
return result;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
|
|
info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
|
|
u32 tx_ant, rx_ant;
|
|
|
|
if ((!rdev->wiphy.available_antennas_tx &&
|
|
!rdev->wiphy.available_antennas_rx) ||
|
|
!rdev->ops->set_antenna)
|
|
return -EOPNOTSUPP;
|
|
|
|
tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
|
|
rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
|
|
|
|
/* reject antenna configurations which don't match the
|
|
* available antenna masks, except for the "all" mask */
|
|
if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
|
|
(~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
|
|
return -EINVAL;
|
|
|
|
tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
|
|
rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
|
|
|
|
result = rdev_set_antenna(rdev, tx_ant, rx_ant);
|
|
if (result)
|
|
return result;
|
|
}
|
|
|
|
changed = 0;
|
|
|
|
if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
|
|
retry_short = nla_get_u8(
|
|
info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
|
|
if (retry_short == 0)
|
|
return -EINVAL;
|
|
|
|
changed |= WIPHY_PARAM_RETRY_SHORT;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
|
|
retry_long = nla_get_u8(
|
|
info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
|
|
if (retry_long == 0)
|
|
return -EINVAL;
|
|
|
|
changed |= WIPHY_PARAM_RETRY_LONG;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
|
|
frag_threshold = nla_get_u32(
|
|
info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
|
|
if (frag_threshold < 256)
|
|
return -EINVAL;
|
|
|
|
if (frag_threshold != (u32) -1) {
|
|
/*
|
|
* Fragments (apart from the last one) are required to
|
|
* have even length. Make the fragmentation code
|
|
* simpler by stripping LSB should someone try to use
|
|
* odd threshold value.
|
|
*/
|
|
frag_threshold &= ~0x1;
|
|
}
|
|
changed |= WIPHY_PARAM_FRAG_THRESHOLD;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
|
|
rts_threshold = nla_get_u32(
|
|
info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
|
|
changed |= WIPHY_PARAM_RTS_THRESHOLD;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
|
|
if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
|
|
return -EINVAL;
|
|
|
|
coverage_class = nla_get_u8(
|
|
info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
|
|
changed |= WIPHY_PARAM_COVERAGE_CLASS;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
|
|
if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
|
|
return -EOPNOTSUPP;
|
|
|
|
changed |= WIPHY_PARAM_DYN_ACK;
|
|
}
|
|
|
|
if (changed) {
|
|
u8 old_retry_short, old_retry_long;
|
|
u32 old_frag_threshold, old_rts_threshold;
|
|
u8 old_coverage_class;
|
|
|
|
if (!rdev->ops->set_wiphy_params)
|
|
return -EOPNOTSUPP;
|
|
|
|
old_retry_short = rdev->wiphy.retry_short;
|
|
old_retry_long = rdev->wiphy.retry_long;
|
|
old_frag_threshold = rdev->wiphy.frag_threshold;
|
|
old_rts_threshold = rdev->wiphy.rts_threshold;
|
|
old_coverage_class = rdev->wiphy.coverage_class;
|
|
|
|
if (changed & WIPHY_PARAM_RETRY_SHORT)
|
|
rdev->wiphy.retry_short = retry_short;
|
|
if (changed & WIPHY_PARAM_RETRY_LONG)
|
|
rdev->wiphy.retry_long = retry_long;
|
|
if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
|
|
rdev->wiphy.frag_threshold = frag_threshold;
|
|
if (changed & WIPHY_PARAM_RTS_THRESHOLD)
|
|
rdev->wiphy.rts_threshold = rts_threshold;
|
|
if (changed & WIPHY_PARAM_COVERAGE_CLASS)
|
|
rdev->wiphy.coverage_class = coverage_class;
|
|
|
|
result = rdev_set_wiphy_params(rdev, changed);
|
|
if (result) {
|
|
rdev->wiphy.retry_short = old_retry_short;
|
|
rdev->wiphy.retry_long = old_retry_long;
|
|
rdev->wiphy.frag_threshold = old_frag_threshold;
|
|
rdev->wiphy.rts_threshold = old_rts_threshold;
|
|
rdev->wiphy.coverage_class = old_coverage_class;
|
|
return result;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static inline u64 wdev_id(struct wireless_dev *wdev)
|
|
{
|
|
return (u64)wdev->identifier |
|
|
((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
|
|
}
|
|
|
|
static int nl80211_send_chandef(struct sk_buff *msg,
|
|
const struct cfg80211_chan_def *chandef)
|
|
{
|
|
if (WARN_ON(!cfg80211_chandef_valid(chandef)))
|
|
return -EINVAL;
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
|
|
chandef->chan->center_freq))
|
|
return -ENOBUFS;
|
|
switch (chandef->width) {
|
|
case NL80211_CHAN_WIDTH_20_NOHT:
|
|
case NL80211_CHAN_WIDTH_20:
|
|
case NL80211_CHAN_WIDTH_40:
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
|
|
cfg80211_get_chandef_type(chandef)))
|
|
return -ENOBUFS;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
|
|
return -ENOBUFS;
|
|
if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
|
|
return -ENOBUFS;
|
|
if (chandef->center_freq2 &&
|
|
nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
|
|
return -ENOBUFS;
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
|
|
struct cfg80211_registered_device *rdev,
|
|
struct wireless_dev *wdev, bool removal)
|
|
{
|
|
struct net_device *dev = wdev->netdev;
|
|
u8 cmd = NL80211_CMD_NEW_INTERFACE;
|
|
void *hdr;
|
|
|
|
if (removal)
|
|
cmd = NL80211_CMD_DEL_INTERFACE;
|
|
|
|
hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
|
|
if (!hdr)
|
|
return -1;
|
|
|
|
if (dev &&
|
|
(nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
|
|
nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
|
|
goto nla_put_failure;
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
|
|
nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
|
|
nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
|
|
NL80211_ATTR_PAD) ||
|
|
nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
|
|
nla_put_u32(msg, NL80211_ATTR_GENERATION,
|
|
rdev->devlist_generation ^
|
|
(cfg80211_rdev_list_generation << 2)))
|
|
goto nla_put_failure;
|
|
|
|
if (rdev->ops->get_channel) {
|
|
int ret;
|
|
struct cfg80211_chan_def chandef;
|
|
|
|
ret = rdev_get_channel(rdev, wdev, &chandef);
|
|
if (ret == 0) {
|
|
if (nl80211_send_chandef(msg, &chandef))
|
|
goto nla_put_failure;
|
|
}
|
|
}
|
|
|
|
if (rdev->ops->get_tx_power) {
|
|
int dbm, ret;
|
|
|
|
ret = rdev_get_tx_power(rdev, wdev, &dbm);
|
|
if (ret == 0 &&
|
|
nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
|
|
DBM_TO_MBM(dbm)))
|
|
goto nla_put_failure;
|
|
}
|
|
|
|
wdev_lock(wdev);
|
|
switch (wdev->iftype) {
|
|
case NL80211_IFTYPE_AP:
|
|
if (wdev->ssid_len &&
|
|
nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
|
|
goto nla_put_failure_locked;
|
|
break;
|
|
case NL80211_IFTYPE_STATION:
|
|
case NL80211_IFTYPE_P2P_CLIENT:
|
|
case NL80211_IFTYPE_ADHOC: {
|
|
const u8 *ssid_ie;
|
|
if (!wdev->current_bss)
|
|
break;
|
|
rcu_read_lock();
|
|
ssid_ie = ieee80211_bss_get_ie(&wdev->current_bss->pub,
|
|
WLAN_EID_SSID);
|
|
if (ssid_ie &&
|
|
nla_put(msg, NL80211_ATTR_SSID, ssid_ie[1], ssid_ie + 2))
|
|
goto nla_put_failure_rcu_locked;
|
|
rcu_read_unlock();
|
|
break;
|
|
}
|
|
default:
|
|
/* nothing */
|
|
break;
|
|
}
|
|
wdev_unlock(wdev);
|
|
|
|
genlmsg_end(msg, hdr);
|
|
return 0;
|
|
|
|
nla_put_failure_rcu_locked:
|
|
rcu_read_unlock();
|
|
nla_put_failure_locked:
|
|
wdev_unlock(wdev);
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
|
|
{
|
|
int wp_idx = 0;
|
|
int if_idx = 0;
|
|
int wp_start = cb->args[0];
|
|
int if_start = cb->args[1];
|
|
int filter_wiphy = -1;
|
|
struct cfg80211_registered_device *rdev;
|
|
struct wireless_dev *wdev;
|
|
int ret;
|
|
|
|
rtnl_lock();
|
|
if (!cb->args[2]) {
|
|
struct nl80211_dump_wiphy_state state = {
|
|
.filter_wiphy = -1,
|
|
};
|
|
|
|
ret = nl80211_dump_wiphy_parse(skb, cb, &state);
|
|
if (ret)
|
|
goto out_unlock;
|
|
|
|
filter_wiphy = state.filter_wiphy;
|
|
|
|
/*
|
|
* if filtering, set cb->args[2] to +1 since 0 is the default
|
|
* value needed to determine that parsing is necessary.
|
|
*/
|
|
if (filter_wiphy >= 0)
|
|
cb->args[2] = filter_wiphy + 1;
|
|
else
|
|
cb->args[2] = -1;
|
|
} else if (cb->args[2] > 0) {
|
|
filter_wiphy = cb->args[2] - 1;
|
|
}
|
|
|
|
list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
|
|
if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
|
|
continue;
|
|
if (wp_idx < wp_start) {
|
|
wp_idx++;
|
|
continue;
|
|
}
|
|
|
|
if (filter_wiphy >= 0 && filter_wiphy != rdev->wiphy_idx)
|
|
continue;
|
|
|
|
if_idx = 0;
|
|
|
|
list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
|
|
if (if_idx < if_start) {
|
|
if_idx++;
|
|
continue;
|
|
}
|
|
if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
|
|
cb->nlh->nlmsg_seq, NLM_F_MULTI,
|
|
rdev, wdev, false) < 0) {
|
|
goto out;
|
|
}
|
|
if_idx++;
|
|
}
|
|
|
|
wp_idx++;
|
|
}
|
|
out:
|
|
cb->args[0] = wp_idx;
|
|
cb->args[1] = if_idx;
|
|
|
|
ret = skb->len;
|
|
out_unlock:
|
|
rtnl_unlock();
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct sk_buff *msg;
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct wireless_dev *wdev = info->user_ptr[1];
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return -ENOMEM;
|
|
|
|
if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
|
|
rdev, wdev, false) < 0) {
|
|
nlmsg_free(msg);
|
|
return -ENOBUFS;
|
|
}
|
|
|
|
return genlmsg_reply(msg, info);
|
|
}
|
|
|
|
static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
|
|
[NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
|
|
[NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
|
|
[NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
|
|
[NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
|
|
[NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
|
|
[NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
|
|
};
|
|
|
|
static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
|
|
{
|
|
struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
|
|
int flag;
|
|
|
|
*mntrflags = 0;
|
|
|
|
if (!nla)
|
|
return -EINVAL;
|
|
|
|
if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, nla,
|
|
mntr_flags_policy, NULL))
|
|
return -EINVAL;
|
|
|
|
for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
|
|
if (flags[flag])
|
|
*mntrflags |= (1<<flag);
|
|
|
|
*mntrflags |= MONITOR_FLAG_CHANGED;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_parse_mon_options(struct cfg80211_registered_device *rdev,
|
|
enum nl80211_iftype type,
|
|
struct genl_info *info,
|
|
struct vif_params *params)
|
|
{
|
|
bool change = false;
|
|
int err;
|
|
|
|
if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
|
|
if (type != NL80211_IFTYPE_MONITOR)
|
|
return -EINVAL;
|
|
|
|
err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
|
|
¶ms->flags);
|
|
if (err)
|
|
return err;
|
|
|
|
change = true;
|
|
}
|
|
|
|
if (params->flags & MONITOR_FLAG_ACTIVE &&
|
|
!(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
|
|
return -EOPNOTSUPP;
|
|
|
|
if (info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]) {
|
|
const u8 *mumimo_groups;
|
|
u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
|
|
|
|
if (type != NL80211_IFTYPE_MONITOR)
|
|
return -EINVAL;
|
|
|
|
if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
|
|
return -EOPNOTSUPP;
|
|
|
|
mumimo_groups =
|
|
nla_data(info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]);
|
|
|
|
/* bits 0 and 63 are reserved and must be zero */
|
|
if ((mumimo_groups[0] & BIT(0)) ||
|
|
(mumimo_groups[VHT_MUMIMO_GROUPS_DATA_LEN - 1] & BIT(7)))
|
|
return -EINVAL;
|
|
|
|
params->vht_mumimo_groups = mumimo_groups;
|
|
change = true;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]) {
|
|
u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
|
|
|
|
if (type != NL80211_IFTYPE_MONITOR)
|
|
return -EINVAL;
|
|
|
|
if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
|
|
return -EOPNOTSUPP;
|
|
|
|
params->vht_mumimo_follow_addr =
|
|
nla_data(info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]);
|
|
change = true;
|
|
}
|
|
|
|
return change ? 1 : 0;
|
|
}
|
|
|
|
static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
|
|
struct net_device *netdev, u8 use_4addr,
|
|
enum nl80211_iftype iftype)
|
|
{
|
|
if (!use_4addr) {
|
|
if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
|
|
return -EBUSY;
|
|
return 0;
|
|
}
|
|
|
|
switch (iftype) {
|
|
case NL80211_IFTYPE_AP_VLAN:
|
|
if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
|
|
return 0;
|
|
break;
|
|
case NL80211_IFTYPE_STATION:
|
|
if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
|
|
return 0;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct vif_params params;
|
|
int err;
|
|
enum nl80211_iftype otype, ntype;
|
|
struct net_device *dev = info->user_ptr[1];
|
|
bool change = false;
|
|
|
|
memset(¶ms, 0, sizeof(params));
|
|
|
|
otype = ntype = dev->ieee80211_ptr->iftype;
|
|
|
|
if (info->attrs[NL80211_ATTR_IFTYPE]) {
|
|
ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
|
|
if (otype != ntype)
|
|
change = true;
|
|
if (ntype > NL80211_IFTYPE_MAX)
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_MESH_ID]) {
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
|
|
if (ntype != NL80211_IFTYPE_MESH_POINT)
|
|
return -EINVAL;
|
|
if (netif_running(dev))
|
|
return -EBUSY;
|
|
|
|
wdev_lock(wdev);
|
|
BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
|
|
IEEE80211_MAX_MESH_ID_LEN);
|
|
wdev->mesh_id_up_len =
|
|
nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
|
|
memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
|
|
wdev->mesh_id_up_len);
|
|
wdev_unlock(wdev);
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_4ADDR]) {
|
|
params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
|
|
change = true;
|
|
err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
|
|
if (err)
|
|
return err;
|
|
} else {
|
|
params.use_4addr = -1;
|
|
}
|
|
|
|
err = nl80211_parse_mon_options(rdev, ntype, info, ¶ms);
|
|
if (err < 0)
|
|
return err;
|
|
if (err > 0)
|
|
change = true;
|
|
|
|
if (change)
|
|
err = cfg80211_change_iface(rdev, dev, ntype, ¶ms);
|
|
else
|
|
err = 0;
|
|
|
|
if (!err && params.use_4addr != -1)
|
|
dev->ieee80211_ptr->use_4addr = params.use_4addr;
|
|
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct vif_params params;
|
|
struct wireless_dev *wdev;
|
|
struct sk_buff *msg;
|
|
int err;
|
|
enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
|
|
|
|
/* to avoid failing a new interface creation due to pending removal */
|
|
cfg80211_destroy_ifaces(rdev);
|
|
|
|
memset(¶ms, 0, sizeof(params));
|
|
|
|
if (!info->attrs[NL80211_ATTR_IFNAME])
|
|
return -EINVAL;
|
|
|
|
if (info->attrs[NL80211_ATTR_IFTYPE]) {
|
|
type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
|
|
if (type > NL80211_IFTYPE_MAX)
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!rdev->ops->add_virtual_intf ||
|
|
!(rdev->wiphy.interface_modes & (1 << type)))
|
|
return -EOPNOTSUPP;
|
|
|
|
if ((type == NL80211_IFTYPE_P2P_DEVICE || type == NL80211_IFTYPE_NAN ||
|
|
rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
|
|
info->attrs[NL80211_ATTR_MAC]) {
|
|
nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
|
|
ETH_ALEN);
|
|
if (!is_valid_ether_addr(params.macaddr))
|
|
return -EADDRNOTAVAIL;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_4ADDR]) {
|
|
params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
|
|
err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
err = nl80211_parse_mon_options(rdev, type, info, ¶ms);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return -ENOMEM;
|
|
|
|
wdev = rdev_add_virtual_intf(rdev,
|
|
nla_data(info->attrs[NL80211_ATTR_IFNAME]),
|
|
NET_NAME_USER, type, ¶ms);
|
|
if (WARN_ON(!wdev)) {
|
|
nlmsg_free(msg);
|
|
return -EPROTO;
|
|
} else if (IS_ERR(wdev)) {
|
|
nlmsg_free(msg);
|
|
return PTR_ERR(wdev);
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
|
|
wdev->owner_nlportid = info->snd_portid;
|
|
|
|
switch (type) {
|
|
case NL80211_IFTYPE_MESH_POINT:
|
|
if (!info->attrs[NL80211_ATTR_MESH_ID])
|
|
break;
|
|
wdev_lock(wdev);
|
|
BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
|
|
IEEE80211_MAX_MESH_ID_LEN);
|
|
wdev->mesh_id_up_len =
|
|
nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
|
|
memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
|
|
wdev->mesh_id_up_len);
|
|
wdev_unlock(wdev);
|
|
break;
|
|
case NL80211_IFTYPE_NAN:
|
|
case NL80211_IFTYPE_P2P_DEVICE:
|
|
/*
|
|
* P2P Device and NAN do not have a netdev, so don't go
|
|
* through the netdev notifier and must be added here
|
|
*/
|
|
mutex_init(&wdev->mtx);
|
|
INIT_LIST_HEAD(&wdev->event_list);
|
|
spin_lock_init(&wdev->event_lock);
|
|
INIT_LIST_HEAD(&wdev->mgmt_registrations);
|
|
spin_lock_init(&wdev->mgmt_registrations_lock);
|
|
|
|
wdev->identifier = ++rdev->wdev_id;
|
|
list_add_rcu(&wdev->list, &rdev->wiphy.wdev_list);
|
|
rdev->devlist_generation++;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
|
|
rdev, wdev, false) < 0) {
|
|
nlmsg_free(msg);
|
|
return -ENOBUFS;
|
|
}
|
|
|
|
/*
|
|
* For wdevs which have no associated netdev object (e.g. of type
|
|
* NL80211_IFTYPE_P2P_DEVICE), emit the NEW_INTERFACE event here.
|
|
* For all other types, the event will be generated from the
|
|
* netdev notifier
|
|
*/
|
|
if (!wdev->netdev)
|
|
nl80211_notify_iface(rdev, wdev, NL80211_CMD_NEW_INTERFACE);
|
|
|
|
return genlmsg_reply(msg, info);
|
|
}
|
|
|
|
static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct wireless_dev *wdev = info->user_ptr[1];
|
|
|
|
if (!rdev->ops->del_virtual_intf)
|
|
return -EOPNOTSUPP;
|
|
|
|
/*
|
|
* If we remove a wireless device without a netdev then clear
|
|
* user_ptr[1] so that nl80211_post_doit won't dereference it
|
|
* to check if it needs to do dev_put(). Otherwise it crashes
|
|
* since the wdev has been freed, unlike with a netdev where
|
|
* we need the dev_put() for the netdev to really be freed.
|
|
*/
|
|
if (!wdev->netdev)
|
|
info->user_ptr[1] = NULL;
|
|
|
|
return rdev_del_virtual_intf(rdev, wdev);
|
|
}
|
|
|
|
static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
u16 noack_map;
|
|
|
|
if (!info->attrs[NL80211_ATTR_NOACK_MAP])
|
|
return -EINVAL;
|
|
|
|
if (!rdev->ops->set_noack_map)
|
|
return -EOPNOTSUPP;
|
|
|
|
noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
|
|
|
|
return rdev_set_noack_map(rdev, dev, noack_map);
|
|
}
|
|
|
|
struct get_key_cookie {
|
|
struct sk_buff *msg;
|
|
int error;
|
|
int idx;
|
|
};
|
|
|
|
static void get_key_callback(void *c, struct key_params *params)
|
|
{
|
|
struct nlattr *key;
|
|
struct get_key_cookie *cookie = c;
|
|
|
|
if ((params->key &&
|
|
nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
|
|
params->key_len, params->key)) ||
|
|
(params->seq &&
|
|
nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
|
|
params->seq_len, params->seq)) ||
|
|
(params->cipher &&
|
|
nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
|
|
params->cipher)))
|
|
goto nla_put_failure;
|
|
|
|
key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
|
|
if (!key)
|
|
goto nla_put_failure;
|
|
|
|
if ((params->key &&
|
|
nla_put(cookie->msg, NL80211_KEY_DATA,
|
|
params->key_len, params->key)) ||
|
|
(params->seq &&
|
|
nla_put(cookie->msg, NL80211_KEY_SEQ,
|
|
params->seq_len, params->seq)) ||
|
|
(params->cipher &&
|
|
nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
|
|
params->cipher)))
|
|
goto nla_put_failure;
|
|
|
|
if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
|
|
goto nla_put_failure;
|
|
|
|
nla_nest_end(cookie->msg, key);
|
|
|
|
return;
|
|
nla_put_failure:
|
|
cookie->error = 1;
|
|
}
|
|
|
|
static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
int err;
|
|
struct net_device *dev = info->user_ptr[1];
|
|
u8 key_idx = 0;
|
|
const u8 *mac_addr = NULL;
|
|
bool pairwise;
|
|
struct get_key_cookie cookie = {
|
|
.error = 0,
|
|
};
|
|
void *hdr;
|
|
struct sk_buff *msg;
|
|
|
|
if (info->attrs[NL80211_ATTR_KEY_IDX])
|
|
key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
|
|
|
|
if (key_idx > 5)
|
|
return -EINVAL;
|
|
|
|
if (info->attrs[NL80211_ATTR_MAC])
|
|
mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
|
|
pairwise = !!mac_addr;
|
|
if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
|
|
u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
|
|
|
|
if (kt >= NUM_NL80211_KEYTYPES)
|
|
return -EINVAL;
|
|
if (kt != NL80211_KEYTYPE_GROUP &&
|
|
kt != NL80211_KEYTYPE_PAIRWISE)
|
|
return -EINVAL;
|
|
pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
|
|
}
|
|
|
|
if (!rdev->ops->get_key)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
|
|
return -ENOENT;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return -ENOMEM;
|
|
|
|
hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
|
|
NL80211_CMD_NEW_KEY);
|
|
if (!hdr)
|
|
goto nla_put_failure;
|
|
|
|
cookie.msg = msg;
|
|
cookie.idx = key_idx;
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
|
|
nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
|
|
goto nla_put_failure;
|
|
if (mac_addr &&
|
|
nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
|
|
goto nla_put_failure;
|
|
|
|
err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
|
|
get_key_callback);
|
|
|
|
if (err)
|
|
goto free_msg;
|
|
|
|
if (cookie.error)
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
return genlmsg_reply(msg, info);
|
|
|
|
nla_put_failure:
|
|
err = -ENOBUFS;
|
|
free_msg:
|
|
nlmsg_free(msg);
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct key_parse key;
|
|
int err;
|
|
struct net_device *dev = info->user_ptr[1];
|
|
|
|
err = nl80211_parse_key(info, &key);
|
|
if (err)
|
|
return err;
|
|
|
|
if (key.idx < 0)
|
|
return -EINVAL;
|
|
|
|
/* only support setting default key */
|
|
if (!key.def && !key.defmgmt)
|
|
return -EINVAL;
|
|
|
|
wdev_lock(dev->ieee80211_ptr);
|
|
|
|
if (key.def) {
|
|
if (!rdev->ops->set_default_key) {
|
|
err = -EOPNOTSUPP;
|
|
goto out;
|
|
}
|
|
|
|
err = nl80211_key_allowed(dev->ieee80211_ptr);
|
|
if (err)
|
|
goto out;
|
|
|
|
err = rdev_set_default_key(rdev, dev, key.idx,
|
|
key.def_uni, key.def_multi);
|
|
|
|
if (err)
|
|
goto out;
|
|
|
|
#ifdef CONFIG_CFG80211_WEXT
|
|
dev->ieee80211_ptr->wext.default_key = key.idx;
|
|
#endif
|
|
} else {
|
|
if (key.def_uni || !key.def_multi) {
|
|
err = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
if (!rdev->ops->set_default_mgmt_key) {
|
|
err = -EOPNOTSUPP;
|
|
goto out;
|
|
}
|
|
|
|
err = nl80211_key_allowed(dev->ieee80211_ptr);
|
|
if (err)
|
|
goto out;
|
|
|
|
err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
|
|
if (err)
|
|
goto out;
|
|
|
|
#ifdef CONFIG_CFG80211_WEXT
|
|
dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
|
|
#endif
|
|
}
|
|
|
|
out:
|
|
wdev_unlock(dev->ieee80211_ptr);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
int err;
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct key_parse key;
|
|
const u8 *mac_addr = NULL;
|
|
|
|
err = nl80211_parse_key(info, &key);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!key.p.key)
|
|
return -EINVAL;
|
|
|
|
if (info->attrs[NL80211_ATTR_MAC])
|
|
mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
|
|
if (key.type == -1) {
|
|
if (mac_addr)
|
|
key.type = NL80211_KEYTYPE_PAIRWISE;
|
|
else
|
|
key.type = NL80211_KEYTYPE_GROUP;
|
|
}
|
|
|
|
/* for now */
|
|
if (key.type != NL80211_KEYTYPE_PAIRWISE &&
|
|
key.type != NL80211_KEYTYPE_GROUP)
|
|
return -EINVAL;
|
|
|
|
if (!rdev->ops->add_key)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
|
|
key.type == NL80211_KEYTYPE_PAIRWISE,
|
|
mac_addr))
|
|
return -EINVAL;
|
|
|
|
wdev_lock(dev->ieee80211_ptr);
|
|
err = nl80211_key_allowed(dev->ieee80211_ptr);
|
|
if (!err)
|
|
err = rdev_add_key(rdev, dev, key.idx,
|
|
key.type == NL80211_KEYTYPE_PAIRWISE,
|
|
mac_addr, &key.p);
|
|
wdev_unlock(dev->ieee80211_ptr);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
int err;
|
|
struct net_device *dev = info->user_ptr[1];
|
|
u8 *mac_addr = NULL;
|
|
struct key_parse key;
|
|
|
|
err = nl80211_parse_key(info, &key);
|
|
if (err)
|
|
return err;
|
|
|
|
if (info->attrs[NL80211_ATTR_MAC])
|
|
mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
|
|
if (key.type == -1) {
|
|
if (mac_addr)
|
|
key.type = NL80211_KEYTYPE_PAIRWISE;
|
|
else
|
|
key.type = NL80211_KEYTYPE_GROUP;
|
|
}
|
|
|
|
/* for now */
|
|
if (key.type != NL80211_KEYTYPE_PAIRWISE &&
|
|
key.type != NL80211_KEYTYPE_GROUP)
|
|
return -EINVAL;
|
|
|
|
if (!rdev->ops->del_key)
|
|
return -EOPNOTSUPP;
|
|
|
|
wdev_lock(dev->ieee80211_ptr);
|
|
err = nl80211_key_allowed(dev->ieee80211_ptr);
|
|
|
|
if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
|
|
!(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
|
|
err = -ENOENT;
|
|
|
|
if (!err)
|
|
err = rdev_del_key(rdev, dev, key.idx,
|
|
key.type == NL80211_KEYTYPE_PAIRWISE,
|
|
mac_addr);
|
|
|
|
#ifdef CONFIG_CFG80211_WEXT
|
|
if (!err) {
|
|
if (key.idx == dev->ieee80211_ptr->wext.default_key)
|
|
dev->ieee80211_ptr->wext.default_key = -1;
|
|
else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
|
|
dev->ieee80211_ptr->wext.default_mgmt_key = -1;
|
|
}
|
|
#endif
|
|
wdev_unlock(dev->ieee80211_ptr);
|
|
|
|
return err;
|
|
}
|
|
|
|
/* This function returns an error or the number of nested attributes */
|
|
static int validate_acl_mac_addrs(struct nlattr *nl_attr)
|
|
{
|
|
struct nlattr *attr;
|
|
int n_entries = 0, tmp;
|
|
|
|
nla_for_each_nested(attr, nl_attr, tmp) {
|
|
if (nla_len(attr) != ETH_ALEN)
|
|
return -EINVAL;
|
|
|
|
n_entries++;
|
|
}
|
|
|
|
return n_entries;
|
|
}
|
|
|
|
/*
|
|
* This function parses ACL information and allocates memory for ACL data.
|
|
* On successful return, the calling function is responsible to free the
|
|
* ACL buffer returned by this function.
|
|
*/
|
|
static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
|
|
struct genl_info *info)
|
|
{
|
|
enum nl80211_acl_policy acl_policy;
|
|
struct nlattr *attr;
|
|
struct cfg80211_acl_data *acl;
|
|
int i = 0, n_entries, tmp;
|
|
|
|
if (!wiphy->max_acl_mac_addrs)
|
|
return ERR_PTR(-EOPNOTSUPP);
|
|
|
|
if (!info->attrs[NL80211_ATTR_ACL_POLICY])
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
|
|
if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
|
|
acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
|
|
if (n_entries < 0)
|
|
return ERR_PTR(n_entries);
|
|
|
|
if (n_entries > wiphy->max_acl_mac_addrs)
|
|
return ERR_PTR(-ENOTSUPP);
|
|
|
|
acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
|
|
GFP_KERNEL);
|
|
if (!acl)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
|
|
memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
|
|
i++;
|
|
}
|
|
|
|
acl->n_acl_entries = n_entries;
|
|
acl->acl_policy = acl_policy;
|
|
|
|
return acl;
|
|
}
|
|
|
|
static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct cfg80211_acl_data *acl;
|
|
int err;
|
|
|
|
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
|
|
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!dev->ieee80211_ptr->beacon_interval)
|
|
return -EINVAL;
|
|
|
|
acl = parse_acl_data(&rdev->wiphy, info);
|
|
if (IS_ERR(acl))
|
|
return PTR_ERR(acl);
|
|
|
|
err = rdev_set_mac_acl(rdev, dev, acl);
|
|
|
|
kfree(acl);
|
|
|
|
return err;
|
|
}
|
|
|
|
static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
|
|
u8 *rates, u8 rates_len)
|
|
{
|
|
u8 i;
|
|
u32 mask = 0;
|
|
|
|
for (i = 0; i < rates_len; i++) {
|
|
int rate = (rates[i] & 0x7f) * 5;
|
|
int ridx;
|
|
|
|
for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
|
|
struct ieee80211_rate *srate =
|
|
&sband->bitrates[ridx];
|
|
if (rate == srate->bitrate) {
|
|
mask |= 1 << ridx;
|
|
break;
|
|
}
|
|
}
|
|
if (ridx == sband->n_bitrates)
|
|
return 0; /* rate not found */
|
|
}
|
|
|
|
return mask;
|
|
}
|
|
|
|
static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
|
|
u8 *rates, u8 rates_len,
|
|
u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
|
|
{
|
|
u8 i;
|
|
|
|
memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
|
|
|
|
for (i = 0; i < rates_len; i++) {
|
|
int ridx, rbit;
|
|
|
|
ridx = rates[i] / 8;
|
|
rbit = BIT(rates[i] % 8);
|
|
|
|
/* check validity */
|
|
if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
|
|
return false;
|
|
|
|
/* check availability */
|
|
if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
|
|
mcs[ridx] |= rbit;
|
|
else
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
|
|
{
|
|
u16 mcs_mask = 0;
|
|
|
|
switch (vht_mcs_map) {
|
|
case IEEE80211_VHT_MCS_NOT_SUPPORTED:
|
|
break;
|
|
case IEEE80211_VHT_MCS_SUPPORT_0_7:
|
|
mcs_mask = 0x00FF;
|
|
break;
|
|
case IEEE80211_VHT_MCS_SUPPORT_0_8:
|
|
mcs_mask = 0x01FF;
|
|
break;
|
|
case IEEE80211_VHT_MCS_SUPPORT_0_9:
|
|
mcs_mask = 0x03FF;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return mcs_mask;
|
|
}
|
|
|
|
static void vht_build_mcs_mask(u16 vht_mcs_map,
|
|
u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
|
|
{
|
|
u8 nss;
|
|
|
|
for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
|
|
vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
|
|
vht_mcs_map >>= 2;
|
|
}
|
|
}
|
|
|
|
static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
|
|
struct nl80211_txrate_vht *txrate,
|
|
u16 mcs[NL80211_VHT_NSS_MAX])
|
|
{
|
|
u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
|
|
u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
|
|
u8 i;
|
|
|
|
if (!sband->vht_cap.vht_supported)
|
|
return false;
|
|
|
|
memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
|
|
|
|
/* Build vht_mcs_mask from VHT capabilities */
|
|
vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
|
|
|
|
for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
|
|
if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
|
|
mcs[i] = txrate->mcs[i];
|
|
else
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
|
|
[NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
|
|
.len = NL80211_MAX_SUPP_RATES },
|
|
[NL80211_TXRATE_HT] = { .type = NLA_BINARY,
|
|
.len = NL80211_MAX_SUPP_HT_RATES },
|
|
[NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
|
|
[NL80211_TXRATE_GI] = { .type = NLA_U8 },
|
|
};
|
|
|
|
static int nl80211_parse_tx_bitrate_mask(struct genl_info *info,
|
|
struct cfg80211_bitrate_mask *mask)
|
|
{
|
|
struct nlattr *tb[NL80211_TXRATE_MAX + 1];
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
int rem, i;
|
|
struct nlattr *tx_rates;
|
|
struct ieee80211_supported_band *sband;
|
|
u16 vht_tx_mcs_map;
|
|
|
|
memset(mask, 0, sizeof(*mask));
|
|
/* Default to all rates enabled */
|
|
for (i = 0; i < NUM_NL80211_BANDS; i++) {
|
|
sband = rdev->wiphy.bands[i];
|
|
|
|
if (!sband)
|
|
continue;
|
|
|
|
mask->control[i].legacy = (1 << sband->n_bitrates) - 1;
|
|
memcpy(mask->control[i].ht_mcs,
|
|
sband->ht_cap.mcs.rx_mask,
|
|
sizeof(mask->control[i].ht_mcs));
|
|
|
|
if (!sband->vht_cap.vht_supported)
|
|
continue;
|
|
|
|
vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
|
|
vht_build_mcs_mask(vht_tx_mcs_map, mask->control[i].vht_mcs);
|
|
}
|
|
|
|
/* if no rates are given set it back to the defaults */
|
|
if (!info->attrs[NL80211_ATTR_TX_RATES])
|
|
goto out;
|
|
|
|
/* The nested attribute uses enum nl80211_band as the index. This maps
|
|
* directly to the enum nl80211_band values used in cfg80211.
|
|
*/
|
|
BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
|
|
nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
|
|
enum nl80211_band band = nla_type(tx_rates);
|
|
int err;
|
|
|
|
if (band < 0 || band >= NUM_NL80211_BANDS)
|
|
return -EINVAL;
|
|
sband = rdev->wiphy.bands[band];
|
|
if (sband == NULL)
|
|
return -EINVAL;
|
|
err = nla_parse_nested(tb, NL80211_TXRATE_MAX, tx_rates,
|
|
nl80211_txattr_policy, info->extack);
|
|
if (err)
|
|
return err;
|
|
if (tb[NL80211_TXRATE_LEGACY]) {
|
|
mask->control[band].legacy = rateset_to_mask(
|
|
sband,
|
|
nla_data(tb[NL80211_TXRATE_LEGACY]),
|
|
nla_len(tb[NL80211_TXRATE_LEGACY]));
|
|
if ((mask->control[band].legacy == 0) &&
|
|
nla_len(tb[NL80211_TXRATE_LEGACY]))
|
|
return -EINVAL;
|
|
}
|
|
if (tb[NL80211_TXRATE_HT]) {
|
|
if (!ht_rateset_to_mask(
|
|
sband,
|
|
nla_data(tb[NL80211_TXRATE_HT]),
|
|
nla_len(tb[NL80211_TXRATE_HT]),
|
|
mask->control[band].ht_mcs))
|
|
return -EINVAL;
|
|
}
|
|
if (tb[NL80211_TXRATE_VHT]) {
|
|
if (!vht_set_mcs_mask(
|
|
sband,
|
|
nla_data(tb[NL80211_TXRATE_VHT]),
|
|
mask->control[band].vht_mcs))
|
|
return -EINVAL;
|
|
}
|
|
if (tb[NL80211_TXRATE_GI]) {
|
|
mask->control[band].gi =
|
|
nla_get_u8(tb[NL80211_TXRATE_GI]);
|
|
if (mask->control[band].gi > NL80211_TXRATE_FORCE_LGI)
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (mask->control[band].legacy == 0) {
|
|
/* don't allow empty legacy rates if HT or VHT
|
|
* are not even supported.
|
|
*/
|
|
if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
|
|
rdev->wiphy.bands[band]->vht_cap.vht_supported))
|
|
return -EINVAL;
|
|
|
|
for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
|
|
if (mask->control[band].ht_mcs[i])
|
|
goto out;
|
|
|
|
for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
|
|
if (mask->control[band].vht_mcs[i])
|
|
goto out;
|
|
|
|
/* legacy and mcs rates may not be both empty */
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
out:
|
|
return 0;
|
|
}
|
|
|
|
static int validate_beacon_tx_rate(struct cfg80211_registered_device *rdev,
|
|
enum nl80211_band band,
|
|
struct cfg80211_bitrate_mask *beacon_rate)
|
|
{
|
|
u32 count_ht, count_vht, i;
|
|
u32 rate = beacon_rate->control[band].legacy;
|
|
|
|
/* Allow only one rate */
|
|
if (hweight32(rate) > 1)
|
|
return -EINVAL;
|
|
|
|
count_ht = 0;
|
|
for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) {
|
|
if (hweight8(beacon_rate->control[band].ht_mcs[i]) > 1) {
|
|
return -EINVAL;
|
|
} else if (beacon_rate->control[band].ht_mcs[i]) {
|
|
count_ht++;
|
|
if (count_ht > 1)
|
|
return -EINVAL;
|
|
}
|
|
if (count_ht && rate)
|
|
return -EINVAL;
|
|
}
|
|
|
|
count_vht = 0;
|
|
for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
|
|
if (hweight16(beacon_rate->control[band].vht_mcs[i]) > 1) {
|
|
return -EINVAL;
|
|
} else if (beacon_rate->control[band].vht_mcs[i]) {
|
|
count_vht++;
|
|
if (count_vht > 1)
|
|
return -EINVAL;
|
|
}
|
|
if (count_vht && rate)
|
|
return -EINVAL;
|
|
}
|
|
|
|
if ((count_ht && count_vht) || (!rate && !count_ht && !count_vht))
|
|
return -EINVAL;
|
|
|
|
if (rate &&
|
|
!wiphy_ext_feature_isset(&rdev->wiphy,
|
|
NL80211_EXT_FEATURE_BEACON_RATE_LEGACY))
|
|
return -EINVAL;
|
|
if (count_ht &&
|
|
!wiphy_ext_feature_isset(&rdev->wiphy,
|
|
NL80211_EXT_FEATURE_BEACON_RATE_HT))
|
|
return -EINVAL;
|
|
if (count_vht &&
|
|
!wiphy_ext_feature_isset(&rdev->wiphy,
|
|
NL80211_EXT_FEATURE_BEACON_RATE_VHT))
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_parse_beacon(struct nlattr *attrs[],
|
|
struct cfg80211_beacon_data *bcn)
|
|
{
|
|
bool haveinfo = false;
|
|
|
|
if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
|
|
!is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
|
|
!is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
|
|
!is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
|
|
return -EINVAL;
|
|
|
|
memset(bcn, 0, sizeof(*bcn));
|
|
|
|
if (attrs[NL80211_ATTR_BEACON_HEAD]) {
|
|
bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
|
|
bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
|
|
if (!bcn->head_len)
|
|
return -EINVAL;
|
|
haveinfo = true;
|
|
}
|
|
|
|
if (attrs[NL80211_ATTR_BEACON_TAIL]) {
|
|
bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
|
|
bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
|
|
haveinfo = true;
|
|
}
|
|
|
|
if (!haveinfo)
|
|
return -EINVAL;
|
|
|
|
if (attrs[NL80211_ATTR_IE]) {
|
|
bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
|
|
bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
|
|
}
|
|
|
|
if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
|
|
bcn->proberesp_ies =
|
|
nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
|
|
bcn->proberesp_ies_len =
|
|
nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
|
|
}
|
|
|
|
if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
|
|
bcn->assocresp_ies =
|
|
nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
|
|
bcn->assocresp_ies_len =
|
|
nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
|
|
}
|
|
|
|
if (attrs[NL80211_ATTR_PROBE_RESP]) {
|
|
bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
|
|
bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void nl80211_check_ap_rate_selectors(struct cfg80211_ap_settings *params,
|
|
const u8 *rates)
|
|
{
|
|
int i;
|
|
|
|
if (!rates)
|
|
return;
|
|
|
|
for (i = 0; i < rates[1]; i++) {
|
|
if (rates[2 + i] == BSS_MEMBERSHIP_SELECTOR_HT_PHY)
|
|
params->ht_required = true;
|
|
if (rates[2 + i] == BSS_MEMBERSHIP_SELECTOR_VHT_PHY)
|
|
params->vht_required = true;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Since the nl80211 API didn't include, from the beginning, attributes about
|
|
* HT/VHT requirements/capabilities, we parse them out of the IEs for the
|
|
* benefit of drivers that rebuild IEs in the firmware.
|
|
*/
|
|
static void nl80211_calculate_ap_params(struct cfg80211_ap_settings *params)
|
|
{
|
|
const struct cfg80211_beacon_data *bcn = ¶ms->beacon;
|
|
size_t ies_len = bcn->tail_len;
|
|
const u8 *ies = bcn->tail;
|
|
const u8 *rates;
|
|
const u8 *cap;
|
|
|
|
rates = cfg80211_find_ie(WLAN_EID_SUPP_RATES, ies, ies_len);
|
|
nl80211_check_ap_rate_selectors(params, rates);
|
|
|
|
rates = cfg80211_find_ie(WLAN_EID_EXT_SUPP_RATES, ies, ies_len);
|
|
nl80211_check_ap_rate_selectors(params, rates);
|
|
|
|
cap = cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, ies, ies_len);
|
|
if (cap && cap[1] >= sizeof(*params->ht_cap))
|
|
params->ht_cap = (void *)(cap + 2);
|
|
cap = cfg80211_find_ie(WLAN_EID_VHT_CAPABILITY, ies, ies_len);
|
|
if (cap && cap[1] >= sizeof(*params->vht_cap))
|
|
params->vht_cap = (void *)(cap + 2);
|
|
}
|
|
|
|
static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
|
|
struct cfg80211_ap_settings *params)
|
|
{
|
|
struct wireless_dev *wdev;
|
|
bool ret = false;
|
|
|
|
list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
|
|
if (wdev->iftype != NL80211_IFTYPE_AP &&
|
|
wdev->iftype != NL80211_IFTYPE_P2P_GO)
|
|
continue;
|
|
|
|
if (!wdev->preset_chandef.chan)
|
|
continue;
|
|
|
|
params->chandef = wdev->preset_chandef;
|
|
ret = true;
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
|
|
enum nl80211_auth_type auth_type,
|
|
enum nl80211_commands cmd)
|
|
{
|
|
if (auth_type > NL80211_AUTHTYPE_MAX)
|
|
return false;
|
|
|
|
switch (cmd) {
|
|
case NL80211_CMD_AUTHENTICATE:
|
|
if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
|
|
auth_type == NL80211_AUTHTYPE_SAE)
|
|
return false;
|
|
if (!wiphy_ext_feature_isset(&rdev->wiphy,
|
|
NL80211_EXT_FEATURE_FILS_STA) &&
|
|
(auth_type == NL80211_AUTHTYPE_FILS_SK ||
|
|
auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
|
|
auth_type == NL80211_AUTHTYPE_FILS_PK))
|
|
return false;
|
|
return true;
|
|
case NL80211_CMD_CONNECT:
|
|
/* SAE not supported yet */
|
|
if (auth_type == NL80211_AUTHTYPE_SAE)
|
|
return false;
|
|
/* FILS with SK PFS or PK not supported yet */
|
|
if (auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
|
|
auth_type == NL80211_AUTHTYPE_FILS_PK)
|
|
return false;
|
|
if (!wiphy_ext_feature_isset(
|
|
&rdev->wiphy,
|
|
NL80211_EXT_FEATURE_FILS_SK_OFFLOAD) &&
|
|
auth_type == NL80211_AUTHTYPE_FILS_SK)
|
|
return false;
|
|
return true;
|
|
case NL80211_CMD_START_AP:
|
|
/* SAE not supported yet */
|
|
if (auth_type == NL80211_AUTHTYPE_SAE)
|
|
return false;
|
|
/* FILS not supported yet */
|
|
if (auth_type == NL80211_AUTHTYPE_FILS_SK ||
|
|
auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
|
|
auth_type == NL80211_AUTHTYPE_FILS_PK)
|
|
return false;
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct cfg80211_ap_settings params;
|
|
int err;
|
|
|
|
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
|
|
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!rdev->ops->start_ap)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (wdev->beacon_interval)
|
|
return -EALREADY;
|
|
|
|
memset(¶ms, 0, sizeof(params));
|
|
|
|
/* these are required for START_AP */
|
|
if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
|
|
!info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
|
|
!info->attrs[NL80211_ATTR_BEACON_HEAD])
|
|
return -EINVAL;
|
|
|
|
err = nl80211_parse_beacon(info->attrs, ¶ms.beacon);
|
|
if (err)
|
|
return err;
|
|
|
|
params.beacon_interval =
|
|
nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
|
|
params.dtim_period =
|
|
nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
|
|
|
|
err = cfg80211_validate_beacon_int(rdev, dev->ieee80211_ptr->iftype,
|
|
params.beacon_interval);
|
|
if (err)
|
|
return err;
|
|
|
|
/*
|
|
* In theory, some of these attributes should be required here
|
|
* but since they were not used when the command was originally
|
|
* added, keep them optional for old user space programs to let
|
|
* them continue to work with drivers that do not need the
|
|
* additional information -- drivers must check!
|
|
*/
|
|
if (info->attrs[NL80211_ATTR_SSID]) {
|
|
params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
|
|
params.ssid_len =
|
|
nla_len(info->attrs[NL80211_ATTR_SSID]);
|
|
if (params.ssid_len == 0 ||
|
|
params.ssid_len > IEEE80211_MAX_SSID_LEN)
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
|
|
params.hidden_ssid = nla_get_u32(
|
|
info->attrs[NL80211_ATTR_HIDDEN_SSID]);
|
|
if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
|
|
params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
|
|
params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
|
|
return -EINVAL;
|
|
}
|
|
|
|
params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
|
|
|
|
if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
|
|
params.auth_type = nla_get_u32(
|
|
info->attrs[NL80211_ATTR_AUTH_TYPE]);
|
|
if (!nl80211_valid_auth_type(rdev, params.auth_type,
|
|
NL80211_CMD_START_AP))
|
|
return -EINVAL;
|
|
} else
|
|
params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
|
|
|
|
err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
|
|
NL80211_MAX_NR_CIPHER_SUITES);
|
|
if (err)
|
|
return err;
|
|
|
|
if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
|
|
if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
|
|
return -EOPNOTSUPP;
|
|
params.inactivity_timeout = nla_get_u16(
|
|
info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
|
|
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
|
|
return -EINVAL;
|
|
params.p2p_ctwindow =
|
|
nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
|
|
if (params.p2p_ctwindow > 127)
|
|
return -EINVAL;
|
|
if (params.p2p_ctwindow != 0 &&
|
|
!(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
|
|
u8 tmp;
|
|
|
|
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
|
|
return -EINVAL;
|
|
tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
|
|
if (tmp > 1)
|
|
return -EINVAL;
|
|
params.p2p_opp_ps = tmp;
|
|
if (params.p2p_opp_ps != 0 &&
|
|
!(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
|
|
err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
|
|
if (err)
|
|
return err;
|
|
} else if (wdev->preset_chandef.chan) {
|
|
params.chandef = wdev->preset_chandef;
|
|
} else if (!nl80211_get_ap_channel(rdev, ¶ms))
|
|
return -EINVAL;
|
|
|
|
if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
|
|
wdev->iftype))
|
|
return -EINVAL;
|
|
|
|
if (info->attrs[NL80211_ATTR_TX_RATES]) {
|
|
err = nl80211_parse_tx_bitrate_mask(info, ¶ms.beacon_rate);
|
|
if (err)
|
|
return err;
|
|
|
|
err = validate_beacon_tx_rate(rdev, params.chandef.chan->band,
|
|
¶ms.beacon_rate);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
|
|
params.smps_mode =
|
|
nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
|
|
switch (params.smps_mode) {
|
|
case NL80211_SMPS_OFF:
|
|
break;
|
|
case NL80211_SMPS_STATIC:
|
|
if (!(rdev->wiphy.features &
|
|
NL80211_FEATURE_STATIC_SMPS))
|
|
return -EINVAL;
|
|
break;
|
|
case NL80211_SMPS_DYNAMIC:
|
|
if (!(rdev->wiphy.features &
|
|
NL80211_FEATURE_DYNAMIC_SMPS))
|
|
return -EINVAL;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
} else {
|
|
params.smps_mode = NL80211_SMPS_OFF;
|
|
}
|
|
|
|
params.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
|
|
if (params.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ])
|
|
return -EOPNOTSUPP;
|
|
|
|
if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
|
|
params.acl = parse_acl_data(&rdev->wiphy, info);
|
|
if (IS_ERR(params.acl))
|
|
return PTR_ERR(params.acl);
|
|
}
|
|
|
|
nl80211_calculate_ap_params(¶ms);
|
|
|
|
wdev_lock(wdev);
|
|
err = rdev_start_ap(rdev, dev, ¶ms);
|
|
if (!err) {
|
|
wdev->preset_chandef = params.chandef;
|
|
wdev->beacon_interval = params.beacon_interval;
|
|
wdev->chandef = params.chandef;
|
|
wdev->ssid_len = params.ssid_len;
|
|
memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
|
|
}
|
|
wdev_unlock(wdev);
|
|
|
|
kfree(params.acl);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct cfg80211_beacon_data params;
|
|
int err;
|
|
|
|
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
|
|
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!rdev->ops->change_beacon)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!wdev->beacon_interval)
|
|
return -EINVAL;
|
|
|
|
err = nl80211_parse_beacon(info->attrs, ¶ms);
|
|
if (err)
|
|
return err;
|
|
|
|
wdev_lock(wdev);
|
|
err = rdev_change_beacon(rdev, dev, ¶ms);
|
|
wdev_unlock(wdev);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
|
|
return cfg80211_stop_ap(rdev, dev, false);
|
|
}
|
|
|
|
static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
|
|
[NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
|
|
[NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
|
|
[NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
|
|
[NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
|
|
[NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
|
|
[NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
|
|
};
|
|
|
|
static int parse_station_flags(struct genl_info *info,
|
|
enum nl80211_iftype iftype,
|
|
struct station_parameters *params)
|
|
{
|
|
struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
|
|
struct nlattr *nla;
|
|
int flag;
|
|
|
|
/*
|
|
* Try parsing the new attribute first so userspace
|
|
* can specify both for older kernels.
|
|
*/
|
|
nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
|
|
if (nla) {
|
|
struct nl80211_sta_flag_update *sta_flags;
|
|
|
|
sta_flags = nla_data(nla);
|
|
params->sta_flags_mask = sta_flags->mask;
|
|
params->sta_flags_set = sta_flags->set;
|
|
params->sta_flags_set &= params->sta_flags_mask;
|
|
if ((params->sta_flags_mask |
|
|
params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
|
|
return -EINVAL;
|
|
return 0;
|
|
}
|
|
|
|
/* if present, parse the old attribute */
|
|
|
|
nla = info->attrs[NL80211_ATTR_STA_FLAGS];
|
|
if (!nla)
|
|
return 0;
|
|
|
|
if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, nla,
|
|
sta_flags_policy, info->extack))
|
|
return -EINVAL;
|
|
|
|
/*
|
|
* Only allow certain flags for interface types so that
|
|
* other attributes are silently ignored. Remember that
|
|
* this is backward compatibility code with old userspace
|
|
* and shouldn't be hit in other cases anyway.
|
|
*/
|
|
switch (iftype) {
|
|
case NL80211_IFTYPE_AP:
|
|
case NL80211_IFTYPE_AP_VLAN:
|
|
case NL80211_IFTYPE_P2P_GO:
|
|
params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
|
|
BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
|
|
BIT(NL80211_STA_FLAG_WME) |
|
|
BIT(NL80211_STA_FLAG_MFP);
|
|
break;
|
|
case NL80211_IFTYPE_P2P_CLIENT:
|
|
case NL80211_IFTYPE_STATION:
|
|
params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
|
|
BIT(NL80211_STA_FLAG_TDLS_PEER);
|
|
break;
|
|
case NL80211_IFTYPE_MESH_POINT:
|
|
params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
|
|
BIT(NL80211_STA_FLAG_MFP) |
|
|
BIT(NL80211_STA_FLAG_AUTHORIZED);
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
|
|
if (flags[flag]) {
|
|
params->sta_flags_set |= (1<<flag);
|
|
|
|
/* no longer support new API additions in old API */
|
|
if (flag > NL80211_STA_FLAG_MAX_OLD_API)
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
|
|
int attr)
|
|
{
|
|
struct nlattr *rate;
|
|
u32 bitrate;
|
|
u16 bitrate_compat;
|
|
enum nl80211_rate_info rate_flg;
|
|
|
|
rate = nla_nest_start(msg, attr);
|
|
if (!rate)
|
|
return false;
|
|
|
|
/* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
|
|
bitrate = cfg80211_calculate_bitrate(info);
|
|
/* report 16-bit bitrate only if we can */
|
|
bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
|
|
if (bitrate > 0 &&
|
|
nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
|
|
return false;
|
|
if (bitrate_compat > 0 &&
|
|
nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
|
|
return false;
|
|
|
|
switch (info->bw) {
|
|
case RATE_INFO_BW_5:
|
|
rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
|
|
break;
|
|
case RATE_INFO_BW_10:
|
|
rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
|
|
break;
|
|
default:
|
|
WARN_ON(1);
|
|
/* fall through */
|
|
case RATE_INFO_BW_20:
|
|
rate_flg = 0;
|
|
break;
|
|
case RATE_INFO_BW_40:
|
|
rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
|
|
break;
|
|
case RATE_INFO_BW_80:
|
|
rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
|
|
break;
|
|
case RATE_INFO_BW_160:
|
|
rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
|
|
break;
|
|
}
|
|
|
|
if (rate_flg && nla_put_flag(msg, rate_flg))
|
|
return false;
|
|
|
|
if (info->flags & RATE_INFO_FLAGS_MCS) {
|
|
if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
|
|
return false;
|
|
if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
|
|
nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
|
|
return false;
|
|
} else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
|
|
if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
|
|
return false;
|
|
if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
|
|
return false;
|
|
if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
|
|
nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
|
|
return false;
|
|
}
|
|
|
|
nla_nest_end(msg, rate);
|
|
return true;
|
|
}
|
|
|
|
static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
|
|
int id)
|
|
{
|
|
void *attr;
|
|
int i = 0;
|
|
|
|
if (!mask)
|
|
return true;
|
|
|
|
attr = nla_nest_start(msg, id);
|
|
if (!attr)
|
|
return false;
|
|
|
|
for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
|
|
if (!(mask & BIT(i)))
|
|
continue;
|
|
|
|
if (nla_put_u8(msg, i, signal[i]))
|
|
return false;
|
|
}
|
|
|
|
nla_nest_end(msg, attr);
|
|
|
|
return true;
|
|
}
|
|
|
|
static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
|
|
u32 seq, int flags,
|
|
struct cfg80211_registered_device *rdev,
|
|
struct net_device *dev,
|
|
const u8 *mac_addr, struct station_info *sinfo)
|
|
{
|
|
void *hdr;
|
|
struct nlattr *sinfoattr, *bss_param;
|
|
|
|
hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
|
|
if (!hdr)
|
|
return -1;
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
|
|
nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
|
|
nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
|
|
goto nla_put_failure;
|
|
|
|
sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
|
|
if (!sinfoattr)
|
|
goto nla_put_failure;
|
|
|
|
#define PUT_SINFO(attr, memb, type) do { \
|
|
BUILD_BUG_ON(sizeof(type) == sizeof(u64)); \
|
|
if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
|
|
nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
|
|
sinfo->memb)) \
|
|
goto nla_put_failure; \
|
|
} while (0)
|
|
#define PUT_SINFO_U64(attr, memb) do { \
|
|
if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
|
|
nla_put_u64_64bit(msg, NL80211_STA_INFO_ ## attr, \
|
|
sinfo->memb, NL80211_STA_INFO_PAD)) \
|
|
goto nla_put_failure; \
|
|
} while (0)
|
|
|
|
PUT_SINFO(CONNECTED_TIME, connected_time, u32);
|
|
PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
|
|
|
|
if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
|
|
BIT(NL80211_STA_INFO_RX_BYTES64)) &&
|
|
nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
|
|
(u32)sinfo->rx_bytes))
|
|
goto nla_put_failure;
|
|
|
|
if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
|
|
BIT(NL80211_STA_INFO_TX_BYTES64)) &&
|
|
nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
|
|
(u32)sinfo->tx_bytes))
|
|
goto nla_put_failure;
|
|
|
|
PUT_SINFO_U64(RX_BYTES64, rx_bytes);
|
|
PUT_SINFO_U64(TX_BYTES64, tx_bytes);
|
|
PUT_SINFO(LLID, llid, u16);
|
|
PUT_SINFO(PLID, plid, u16);
|
|
PUT_SINFO(PLINK_STATE, plink_state, u8);
|
|
PUT_SINFO_U64(RX_DURATION, rx_duration);
|
|
|
|
switch (rdev->wiphy.signal_type) {
|
|
case CFG80211_SIGNAL_TYPE_MBM:
|
|
PUT_SINFO(SIGNAL, signal, u8);
|
|
PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
|
|
if (!nl80211_put_signal(msg, sinfo->chains,
|
|
sinfo->chain_signal,
|
|
NL80211_STA_INFO_CHAIN_SIGNAL))
|
|
goto nla_put_failure;
|
|
}
|
|
if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
|
|
if (!nl80211_put_signal(msg, sinfo->chains,
|
|
sinfo->chain_signal_avg,
|
|
NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
|
|
goto nla_put_failure;
|
|
}
|
|
if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
|
|
if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
|
|
NL80211_STA_INFO_TX_BITRATE))
|
|
goto nla_put_failure;
|
|
}
|
|
if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
|
|
if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
|
|
NL80211_STA_INFO_RX_BITRATE))
|
|
goto nla_put_failure;
|
|
}
|
|
|
|
PUT_SINFO(RX_PACKETS, rx_packets, u32);
|
|
PUT_SINFO(TX_PACKETS, tx_packets, u32);
|
|
PUT_SINFO(TX_RETRIES, tx_retries, u32);
|
|
PUT_SINFO(TX_FAILED, tx_failed, u32);
|
|
PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
|
|
PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
|
|
PUT_SINFO(LOCAL_PM, local_pm, u32);
|
|
PUT_SINFO(PEER_PM, peer_pm, u32);
|
|
PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
|
|
|
|
if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
|
|
bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
|
|
if (!bss_param)
|
|
goto nla_put_failure;
|
|
|
|
if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
|
|
nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
|
|
((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
|
|
nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
|
|
((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
|
|
nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
|
|
nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
|
|
sinfo->bss_param.dtim_period) ||
|
|
nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
|
|
sinfo->bss_param.beacon_interval))
|
|
goto nla_put_failure;
|
|
|
|
nla_nest_end(msg, bss_param);
|
|
}
|
|
if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
|
|
nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
|
|
sizeof(struct nl80211_sta_flag_update),
|
|
&sinfo->sta_flags))
|
|
goto nla_put_failure;
|
|
|
|
PUT_SINFO_U64(T_OFFSET, t_offset);
|
|
PUT_SINFO_U64(RX_DROP_MISC, rx_dropped_misc);
|
|
PUT_SINFO_U64(BEACON_RX, rx_beacon);
|
|
PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
|
|
|
|
#undef PUT_SINFO
|
|
#undef PUT_SINFO_U64
|
|
|
|
if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
|
|
struct nlattr *tidsattr;
|
|
int tid;
|
|
|
|
tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
|
|
if (!tidsattr)
|
|
goto nla_put_failure;
|
|
|
|
for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
|
|
struct cfg80211_tid_stats *tidstats;
|
|
struct nlattr *tidattr;
|
|
|
|
tidstats = &sinfo->pertid[tid];
|
|
|
|
if (!tidstats->filled)
|
|
continue;
|
|
|
|
tidattr = nla_nest_start(msg, tid + 1);
|
|
if (!tidattr)
|
|
goto nla_put_failure;
|
|
|
|
#define PUT_TIDVAL_U64(attr, memb) do { \
|
|
if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
|
|
nla_put_u64_64bit(msg, NL80211_TID_STATS_ ## attr, \
|
|
tidstats->memb, NL80211_TID_STATS_PAD)) \
|
|
goto nla_put_failure; \
|
|
} while (0)
|
|
|
|
PUT_TIDVAL_U64(RX_MSDU, rx_msdu);
|
|
PUT_TIDVAL_U64(TX_MSDU, tx_msdu);
|
|
PUT_TIDVAL_U64(TX_MSDU_RETRIES, tx_msdu_retries);
|
|
PUT_TIDVAL_U64(TX_MSDU_FAILED, tx_msdu_failed);
|
|
|
|
#undef PUT_TIDVAL_U64
|
|
nla_nest_end(msg, tidattr);
|
|
}
|
|
|
|
nla_nest_end(msg, tidsattr);
|
|
}
|
|
|
|
nla_nest_end(msg, sinfoattr);
|
|
|
|
if (sinfo->assoc_req_ies_len &&
|
|
nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
|
|
sinfo->assoc_req_ies))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
return 0;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
static int nl80211_dump_station(struct sk_buff *skb,
|
|
struct netlink_callback *cb)
|
|
{
|
|
struct station_info sinfo;
|
|
struct cfg80211_registered_device *rdev;
|
|
struct wireless_dev *wdev;
|
|
u8 mac_addr[ETH_ALEN];
|
|
int sta_idx = cb->args[2];
|
|
int err;
|
|
|
|
rtnl_lock();
|
|
err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
|
|
if (err)
|
|
goto out_err;
|
|
|
|
if (!wdev->netdev) {
|
|
err = -EINVAL;
|
|
goto out_err;
|
|
}
|
|
|
|
if (!rdev->ops->dump_station) {
|
|
err = -EOPNOTSUPP;
|
|
goto out_err;
|
|
}
|
|
|
|
while (1) {
|
|
memset(&sinfo, 0, sizeof(sinfo));
|
|
err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
|
|
mac_addr, &sinfo);
|
|
if (err == -ENOENT)
|
|
break;
|
|
if (err)
|
|
goto out_err;
|
|
|
|
if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
|
|
NETLINK_CB(cb->skb).portid,
|
|
cb->nlh->nlmsg_seq, NLM_F_MULTI,
|
|
rdev, wdev->netdev, mac_addr,
|
|
&sinfo) < 0)
|
|
goto out;
|
|
|
|
sta_idx++;
|
|
}
|
|
|
|
out:
|
|
cb->args[2] = sta_idx;
|
|
err = skb->len;
|
|
out_err:
|
|
rtnl_unlock();
|
|
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct station_info sinfo;
|
|
struct sk_buff *msg;
|
|
u8 *mac_addr = NULL;
|
|
int err;
|
|
|
|
memset(&sinfo, 0, sizeof(sinfo));
|
|
|
|
if (!info->attrs[NL80211_ATTR_MAC])
|
|
return -EINVAL;
|
|
|
|
mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
|
|
if (!rdev->ops->get_station)
|
|
return -EOPNOTSUPP;
|
|
|
|
err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
|
|
if (err)
|
|
return err;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return -ENOMEM;
|
|
|
|
if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
|
|
info->snd_portid, info->snd_seq, 0,
|
|
rdev, dev, mac_addr, &sinfo) < 0) {
|
|
nlmsg_free(msg);
|
|
return -ENOBUFS;
|
|
}
|
|
|
|
return genlmsg_reply(msg, info);
|
|
}
|
|
|
|
int cfg80211_check_station_change(struct wiphy *wiphy,
|
|
struct station_parameters *params,
|
|
enum cfg80211_station_type statype)
|
|
{
|
|
if (params->listen_interval != -1 &&
|
|
statype != CFG80211_STA_AP_CLIENT_UNASSOC)
|
|
return -EINVAL;
|
|
|
|
if (params->support_p2p_ps != -1 &&
|
|
statype != CFG80211_STA_AP_CLIENT_UNASSOC)
|
|
return -EINVAL;
|
|
|
|
if (params->aid &&
|
|
!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
|
|
statype != CFG80211_STA_AP_CLIENT_UNASSOC)
|
|
return -EINVAL;
|
|
|
|
/* When you run into this, adjust the code below for the new flag */
|
|
BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
|
|
|
|
switch (statype) {
|
|
case CFG80211_STA_MESH_PEER_KERNEL:
|
|
case CFG80211_STA_MESH_PEER_USER:
|
|
/*
|
|
* No ignoring the TDLS flag here -- the userspace mesh
|
|
* code doesn't have the bug of including TDLS in the
|
|
* mask everywhere.
|
|
*/
|
|
if (params->sta_flags_mask &
|
|
~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
|
|
BIT(NL80211_STA_FLAG_MFP) |
|
|
BIT(NL80211_STA_FLAG_AUTHORIZED)))
|
|
return -EINVAL;
|
|
break;
|
|
case CFG80211_STA_TDLS_PEER_SETUP:
|
|
case CFG80211_STA_TDLS_PEER_ACTIVE:
|
|
if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
|
|
return -EINVAL;
|
|
/* ignore since it can't change */
|
|
params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
|
|
break;
|
|
default:
|
|
/* disallow mesh-specific things */
|
|
if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
|
|
return -EINVAL;
|
|
if (params->local_pm)
|
|
return -EINVAL;
|
|
if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
|
|
statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
|
|
/* TDLS can't be set, ... */
|
|
if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
|
|
return -EINVAL;
|
|
/*
|
|
* ... but don't bother the driver with it. This works around
|
|
* a hostapd/wpa_supplicant issue -- it always includes the
|
|
* TLDS_PEER flag in the mask even for AP mode.
|
|
*/
|
|
params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
|
|
}
|
|
|
|
if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
|
|
statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
|
|
/* reject other things that can't change */
|
|
if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
|
|
return -EINVAL;
|
|
if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
|
|
return -EINVAL;
|
|
if (params->supported_rates)
|
|
return -EINVAL;
|
|
if (params->ext_capab || params->ht_capa || params->vht_capa)
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (statype != CFG80211_STA_AP_CLIENT &&
|
|
statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
|
|
if (params->vlan)
|
|
return -EINVAL;
|
|
}
|
|
|
|
switch (statype) {
|
|
case CFG80211_STA_AP_MLME_CLIENT:
|
|
/* Use this only for authorizing/unauthorizing a station */
|
|
if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
|
|
return -EOPNOTSUPP;
|
|
break;
|
|
case CFG80211_STA_AP_CLIENT:
|
|
case CFG80211_STA_AP_CLIENT_UNASSOC:
|
|
/* accept only the listed bits */
|
|
if (params->sta_flags_mask &
|
|
~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
|
|
BIT(NL80211_STA_FLAG_AUTHENTICATED) |
|
|
BIT(NL80211_STA_FLAG_ASSOCIATED) |
|
|
BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
|
|
BIT(NL80211_STA_FLAG_WME) |
|
|
BIT(NL80211_STA_FLAG_MFP)))
|
|
return -EINVAL;
|
|
|
|
/* but authenticated/associated only if driver handles it */
|
|
if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
|
|
params->sta_flags_mask &
|
|
(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
|
|
BIT(NL80211_STA_FLAG_ASSOCIATED)))
|
|
return -EINVAL;
|
|
break;
|
|
case CFG80211_STA_IBSS:
|
|
case CFG80211_STA_AP_STA:
|
|
/* reject any changes other than AUTHORIZED */
|
|
if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
|
|
return -EINVAL;
|
|
break;
|
|
case CFG80211_STA_TDLS_PEER_SETUP:
|
|
/* reject any changes other than AUTHORIZED or WME */
|
|
if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
|
|
BIT(NL80211_STA_FLAG_WME)))
|
|
return -EINVAL;
|
|
/* force (at least) rates when authorizing */
|
|
if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
|
|
!params->supported_rates)
|
|
return -EINVAL;
|
|
break;
|
|
case CFG80211_STA_TDLS_PEER_ACTIVE:
|
|
/* reject any changes */
|
|
return -EINVAL;
|
|
case CFG80211_STA_MESH_PEER_KERNEL:
|
|
if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
|
|
return -EINVAL;
|
|
break;
|
|
case CFG80211_STA_MESH_PEER_USER:
|
|
if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
|
|
params->plink_action != NL80211_PLINK_ACTION_BLOCK)
|
|
return -EINVAL;
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Older kernel versions ignored this attribute entirely, so don't
|
|
* reject attempts to update it but mark it as unused instead so the
|
|
* driver won't look at the data.
|
|
*/
|
|
if (statype != CFG80211_STA_AP_CLIENT_UNASSOC &&
|
|
statype != CFG80211_STA_TDLS_PEER_SETUP)
|
|
params->opmode_notif_used = false;
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_check_station_change);
|
|
|
|
/*
|
|
* Get vlan interface making sure it is running and on the right wiphy.
|
|
*/
|
|
static struct net_device *get_vlan(struct genl_info *info,
|
|
struct cfg80211_registered_device *rdev)
|
|
{
|
|
struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
|
|
struct net_device *v;
|
|
int ret;
|
|
|
|
if (!vlanattr)
|
|
return NULL;
|
|
|
|
v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
|
|
if (!v)
|
|
return ERR_PTR(-ENODEV);
|
|
|
|
if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
|
|
ret = -EINVAL;
|
|
goto error;
|
|
}
|
|
|
|
if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
|
|
v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
|
|
v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
|
|
ret = -EINVAL;
|
|
goto error;
|
|
}
|
|
|
|
if (!netif_running(v)) {
|
|
ret = -ENETDOWN;
|
|
goto error;
|
|
}
|
|
|
|
return v;
|
|
error:
|
|
dev_put(v);
|
|
return ERR_PTR(ret);
|
|
}
|
|
|
|
static const struct nla_policy
|
|
nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
|
|
[NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
|
|
[NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
|
|
};
|
|
|
|
static int nl80211_parse_sta_wme(struct genl_info *info,
|
|
struct station_parameters *params)
|
|
{
|
|
struct nlattr *tb[NL80211_STA_WME_MAX + 1];
|
|
struct nlattr *nla;
|
|
int err;
|
|
|
|
/* parse WME attributes if present */
|
|
if (!info->attrs[NL80211_ATTR_STA_WME])
|
|
return 0;
|
|
|
|
nla = info->attrs[NL80211_ATTR_STA_WME];
|
|
err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
|
|
nl80211_sta_wme_policy, info->extack);
|
|
if (err)
|
|
return err;
|
|
|
|
if (tb[NL80211_STA_WME_UAPSD_QUEUES])
|
|
params->uapsd_queues = nla_get_u8(
|
|
tb[NL80211_STA_WME_UAPSD_QUEUES]);
|
|
if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
|
|
return -EINVAL;
|
|
|
|
if (tb[NL80211_STA_WME_MAX_SP])
|
|
params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
|
|
|
|
if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
|
|
return -EINVAL;
|
|
|
|
params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_parse_sta_channel_info(struct genl_info *info,
|
|
struct station_parameters *params)
|
|
{
|
|
if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
|
|
params->supported_channels =
|
|
nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
|
|
params->supported_channels_len =
|
|
nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
|
|
/*
|
|
* Need to include at least one (first channel, number of
|
|
* channels) tuple for each subband, and must have proper
|
|
* tuples for the rest of the data as well.
|
|
*/
|
|
if (params->supported_channels_len < 2)
|
|
return -EINVAL;
|
|
if (params->supported_channels_len % 2)
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
|
|
params->supported_oper_classes =
|
|
nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
|
|
params->supported_oper_classes_len =
|
|
nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
|
|
/*
|
|
* The value of the Length field of the Supported Operating
|
|
* Classes element is between 2 and 253.
|
|
*/
|
|
if (params->supported_oper_classes_len < 2 ||
|
|
params->supported_oper_classes_len > 253)
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_set_station_tdls(struct genl_info *info,
|
|
struct station_parameters *params)
|
|
{
|
|
int err;
|
|
/* Dummy STA entry gets updated once the peer capabilities are known */
|
|
if (info->attrs[NL80211_ATTR_PEER_AID])
|
|
params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
|
|
if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
|
|
params->ht_capa =
|
|
nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
|
|
if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
|
|
params->vht_capa =
|
|
nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
|
|
|
|
err = nl80211_parse_sta_channel_info(info, params);
|
|
if (err)
|
|
return err;
|
|
|
|
return nl80211_parse_sta_wme(info, params);
|
|
}
|
|
|
|
static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct station_parameters params;
|
|
u8 *mac_addr;
|
|
int err;
|
|
|
|
memset(¶ms, 0, sizeof(params));
|
|
|
|
if (!rdev->ops->change_station)
|
|
return -EOPNOTSUPP;
|
|
|
|
/*
|
|
* AID and listen_interval properties can be set only for unassociated
|
|
* station. Include these parameters here and will check them in
|
|
* cfg80211_check_station_change().
|
|
*/
|
|
if (info->attrs[NL80211_ATTR_STA_AID])
|
|
params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
|
|
|
|
if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
|
|
params.listen_interval =
|
|
nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
|
|
else
|
|
params.listen_interval = -1;
|
|
|
|
if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
|
|
u8 tmp;
|
|
|
|
tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
|
|
if (tmp >= NUM_NL80211_P2P_PS_STATUS)
|
|
return -EINVAL;
|
|
|
|
params.support_p2p_ps = tmp;
|
|
} else {
|
|
params.support_p2p_ps = -1;
|
|
}
|
|
|
|
if (!info->attrs[NL80211_ATTR_MAC])
|
|
return -EINVAL;
|
|
|
|
mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
|
|
if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
|
|
params.supported_rates =
|
|
nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
|
|
params.supported_rates_len =
|
|
nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
|
|
params.capability =
|
|
nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
|
|
params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
|
|
params.ext_capab =
|
|
nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
|
|
params.ext_capab_len =
|
|
nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
|
|
}
|
|
|
|
if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
|
|
return -EINVAL;
|
|
|
|
if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
|
|
params.plink_action =
|
|
nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
|
|
if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
|
|
params.plink_state =
|
|
nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
|
|
if (params.plink_state >= NUM_NL80211_PLINK_STATES)
|
|
return -EINVAL;
|
|
if (info->attrs[NL80211_ATTR_MESH_PEER_AID]) {
|
|
params.peer_aid = nla_get_u16(
|
|
info->attrs[NL80211_ATTR_MESH_PEER_AID]);
|
|
if (params.peer_aid > IEEE80211_MAX_AID)
|
|
return -EINVAL;
|
|
}
|
|
params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
|
|
enum nl80211_mesh_power_mode pm = nla_get_u32(
|
|
info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
|
|
|
|
if (pm <= NL80211_MESH_POWER_UNKNOWN ||
|
|
pm > NL80211_MESH_POWER_MAX)
|
|
return -EINVAL;
|
|
|
|
params.local_pm = pm;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
|
|
params.opmode_notif_used = true;
|
|
params.opmode_notif =
|
|
nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
|
|
}
|
|
|
|
/* Include parameters for TDLS peer (will check later) */
|
|
err = nl80211_set_station_tdls(info, ¶ms);
|
|
if (err)
|
|
return err;
|
|
|
|
params.vlan = get_vlan(info, rdev);
|
|
if (IS_ERR(params.vlan))
|
|
return PTR_ERR(params.vlan);
|
|
|
|
switch (dev->ieee80211_ptr->iftype) {
|
|
case NL80211_IFTYPE_AP:
|
|
case NL80211_IFTYPE_AP_VLAN:
|
|
case NL80211_IFTYPE_P2P_GO:
|
|
case NL80211_IFTYPE_P2P_CLIENT:
|
|
case NL80211_IFTYPE_STATION:
|
|
case NL80211_IFTYPE_ADHOC:
|
|
case NL80211_IFTYPE_MESH_POINT:
|
|
break;
|
|
default:
|
|
err = -EOPNOTSUPP;
|
|
goto out_put_vlan;
|
|
}
|
|
|
|
/* driver will call cfg80211_check_station_change() */
|
|
err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
|
|
|
|
out_put_vlan:
|
|
if (params.vlan)
|
|
dev_put(params.vlan);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
int err;
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct station_parameters params;
|
|
u8 *mac_addr = NULL;
|
|
u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
|
|
BIT(NL80211_STA_FLAG_ASSOCIATED);
|
|
|
|
memset(¶ms, 0, sizeof(params));
|
|
|
|
if (!rdev->ops->add_station)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!info->attrs[NL80211_ATTR_MAC])
|
|
return -EINVAL;
|
|
|
|
if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
|
|
return -EINVAL;
|
|
|
|
if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
|
|
return -EINVAL;
|
|
|
|
if (!info->attrs[NL80211_ATTR_STA_AID] &&
|
|
!info->attrs[NL80211_ATTR_PEER_AID])
|
|
return -EINVAL;
|
|
|
|
mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
params.supported_rates =
|
|
nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
|
|
params.supported_rates_len =
|
|
nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
|
|
params.listen_interval =
|
|
nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
|
|
|
|
if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
|
|
u8 tmp;
|
|
|
|
tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
|
|
if (tmp >= NUM_NL80211_P2P_PS_STATUS)
|
|
return -EINVAL;
|
|
|
|
params.support_p2p_ps = tmp;
|
|
} else {
|
|
/*
|
|
* if not specified, assume it's supported for P2P GO interface,
|
|
* and is NOT supported for AP interface
|
|
*/
|
|
params.support_p2p_ps =
|
|
dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_PEER_AID])
|
|
params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
|
|
else
|
|
params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
|
|
if (!params.aid || params.aid > IEEE80211_MAX_AID)
|
|
return -EINVAL;
|
|
|
|
if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
|
|
params.capability =
|
|
nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
|
|
params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
|
|
params.ext_capab =
|
|
nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
|
|
params.ext_capab_len =
|
|
nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
|
|
params.ht_capa =
|
|
nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
|
|
|
|
if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
|
|
params.vht_capa =
|
|
nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
|
|
|
|
if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
|
|
params.opmode_notif_used = true;
|
|
params.opmode_notif =
|
|
nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
|
|
params.plink_action =
|
|
nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
|
|
if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
|
|
return -EINVAL;
|
|
}
|
|
|
|
err = nl80211_parse_sta_channel_info(info, ¶ms);
|
|
if (err)
|
|
return err;
|
|
|
|
err = nl80211_parse_sta_wme(info, ¶ms);
|
|
if (err)
|
|
return err;
|
|
|
|
if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
|
|
return -EINVAL;
|
|
|
|
/* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
|
|
* as userspace might just pass through the capabilities from the IEs
|
|
* directly, rather than enforcing this restriction and returning an
|
|
* error in this case.
|
|
*/
|
|
if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
|
|
params.ht_capa = NULL;
|
|
params.vht_capa = NULL;
|
|
}
|
|
|
|
/* When you run into this, adjust the code below for the new flag */
|
|
BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
|
|
|
|
switch (dev->ieee80211_ptr->iftype) {
|
|
case NL80211_IFTYPE_AP:
|
|
case NL80211_IFTYPE_AP_VLAN:
|
|
case NL80211_IFTYPE_P2P_GO:
|
|
/* ignore WME attributes if iface/sta is not capable */
|
|
if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
|
|
!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
|
|
params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
|
|
|
|
/* TDLS peers cannot be added */
|
|
if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
|
|
info->attrs[NL80211_ATTR_PEER_AID])
|
|
return -EINVAL;
|
|
/* but don't bother the driver with it */
|
|
params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
|
|
|
|
/* allow authenticated/associated only if driver handles it */
|
|
if (!(rdev->wiphy.features &
|
|
NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
|
|
params.sta_flags_mask & auth_assoc)
|
|
return -EINVAL;
|
|
|
|
/* Older userspace, or userspace wanting to be compatible with
|
|
* !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth
|
|
* and assoc flags in the mask, but assumes the station will be
|
|
* added as associated anyway since this was the required driver
|
|
* behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was
|
|
* introduced.
|
|
* In order to not bother drivers with this quirk in the API
|
|
* set the flags in both the mask and set for new stations in
|
|
* this case.
|
|
*/
|
|
if (!(params.sta_flags_mask & auth_assoc)) {
|
|
params.sta_flags_mask |= auth_assoc;
|
|
params.sta_flags_set |= auth_assoc;
|
|
}
|
|
|
|
/* must be last in here for error handling */
|
|
params.vlan = get_vlan(info, rdev);
|
|
if (IS_ERR(params.vlan))
|
|
return PTR_ERR(params.vlan);
|
|
break;
|
|
case NL80211_IFTYPE_MESH_POINT:
|
|
/* ignore uAPSD data */
|
|
params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
|
|
|
|
/* associated is disallowed */
|
|
if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
|
|
return -EINVAL;
|
|
/* TDLS peers cannot be added */
|
|
if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
|
|
info->attrs[NL80211_ATTR_PEER_AID])
|
|
return -EINVAL;
|
|
break;
|
|
case NL80211_IFTYPE_STATION:
|
|
case NL80211_IFTYPE_P2P_CLIENT:
|
|
/* ignore uAPSD data */
|
|
params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
|
|
|
|
/* these are disallowed */
|
|
if (params.sta_flags_mask &
|
|
(BIT(NL80211_STA_FLAG_ASSOCIATED) |
|
|
BIT(NL80211_STA_FLAG_AUTHENTICATED)))
|
|
return -EINVAL;
|
|
/* Only TDLS peers can be added */
|
|
if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
|
|
return -EINVAL;
|
|
/* Can only add if TDLS ... */
|
|
if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
|
|
return -EOPNOTSUPP;
|
|
/* ... with external setup is supported */
|
|
if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
|
|
return -EOPNOTSUPP;
|
|
/*
|
|
* Older wpa_supplicant versions always mark the TDLS peer
|
|
* as authorized, but it shouldn't yet be.
|
|
*/
|
|
params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
|
|
break;
|
|
default:
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
/* be aware of params.vlan when changing code here */
|
|
|
|
err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
|
|
|
|
if (params.vlan)
|
|
dev_put(params.vlan);
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct station_del_parameters params;
|
|
|
|
memset(¶ms, 0, sizeof(params));
|
|
|
|
if (info->attrs[NL80211_ATTR_MAC])
|
|
params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
|
|
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
|
|
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
|
|
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
|
|
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
|
|
return -EINVAL;
|
|
|
|
if (!rdev->ops->del_station)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
|
|
params.subtype =
|
|
nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
|
|
if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
|
|
params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
|
|
return -EINVAL;
|
|
} else {
|
|
/* Default to Deauthentication frame */
|
|
params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_REASON_CODE]) {
|
|
params.reason_code =
|
|
nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
|
|
if (params.reason_code == 0)
|
|
return -EINVAL; /* 0 is reserved */
|
|
} else {
|
|
/* Default to reason code 2 */
|
|
params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
|
|
}
|
|
|
|
return rdev_del_station(rdev, dev, ¶ms);
|
|
}
|
|
|
|
static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
|
|
int flags, struct net_device *dev,
|
|
u8 *dst, u8 *next_hop,
|
|
struct mpath_info *pinfo)
|
|
{
|
|
void *hdr;
|
|
struct nlattr *pinfoattr;
|
|
|
|
hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
|
|
if (!hdr)
|
|
return -1;
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
|
|
nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
|
|
nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
|
|
nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
|
|
goto nla_put_failure;
|
|
|
|
pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
|
|
if (!pinfoattr)
|
|
goto nla_put_failure;
|
|
if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
|
|
nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
|
|
pinfo->frame_qlen))
|
|
goto nla_put_failure;
|
|
if (((pinfo->filled & MPATH_INFO_SN) &&
|
|
nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
|
|
((pinfo->filled & MPATH_INFO_METRIC) &&
|
|
nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
|
|
pinfo->metric)) ||
|
|
((pinfo->filled & MPATH_INFO_EXPTIME) &&
|
|
nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
|
|
pinfo->exptime)) ||
|
|
((pinfo->filled & MPATH_INFO_FLAGS) &&
|
|
nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
|
|
pinfo->flags)) ||
|
|
((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
|
|
nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
|
|
pinfo->discovery_timeout)) ||
|
|
((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
|
|
nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
|
|
pinfo->discovery_retries)))
|
|
goto nla_put_failure;
|
|
|
|
nla_nest_end(msg, pinfoattr);
|
|
|
|
genlmsg_end(msg, hdr);
|
|
return 0;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
static int nl80211_dump_mpath(struct sk_buff *skb,
|
|
struct netlink_callback *cb)
|
|
{
|
|
struct mpath_info pinfo;
|
|
struct cfg80211_registered_device *rdev;
|
|
struct wireless_dev *wdev;
|
|
u8 dst[ETH_ALEN];
|
|
u8 next_hop[ETH_ALEN];
|
|
int path_idx = cb->args[2];
|
|
int err;
|
|
|
|
rtnl_lock();
|
|
err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
|
|
if (err)
|
|
goto out_err;
|
|
|
|
if (!rdev->ops->dump_mpath) {
|
|
err = -EOPNOTSUPP;
|
|
goto out_err;
|
|
}
|
|
|
|
if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
|
|
err = -EOPNOTSUPP;
|
|
goto out_err;
|
|
}
|
|
|
|
while (1) {
|
|
err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
|
|
next_hop, &pinfo);
|
|
if (err == -ENOENT)
|
|
break;
|
|
if (err)
|
|
goto out_err;
|
|
|
|
if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
|
|
cb->nlh->nlmsg_seq, NLM_F_MULTI,
|
|
wdev->netdev, dst, next_hop,
|
|
&pinfo) < 0)
|
|
goto out;
|
|
|
|
path_idx++;
|
|
}
|
|
|
|
out:
|
|
cb->args[2] = path_idx;
|
|
err = skb->len;
|
|
out_err:
|
|
rtnl_unlock();
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
int err;
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct mpath_info pinfo;
|
|
struct sk_buff *msg;
|
|
u8 *dst = NULL;
|
|
u8 next_hop[ETH_ALEN];
|
|
|
|
memset(&pinfo, 0, sizeof(pinfo));
|
|
|
|
if (!info->attrs[NL80211_ATTR_MAC])
|
|
return -EINVAL;
|
|
|
|
dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
|
|
if (!rdev->ops->get_mpath)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
|
|
return -EOPNOTSUPP;
|
|
|
|
err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
|
|
if (err)
|
|
return err;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return -ENOMEM;
|
|
|
|
if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
|
|
dev, dst, next_hop, &pinfo) < 0) {
|
|
nlmsg_free(msg);
|
|
return -ENOBUFS;
|
|
}
|
|
|
|
return genlmsg_reply(msg, info);
|
|
}
|
|
|
|
static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
u8 *dst = NULL;
|
|
u8 *next_hop = NULL;
|
|
|
|
if (!info->attrs[NL80211_ATTR_MAC])
|
|
return -EINVAL;
|
|
|
|
if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
|
|
return -EINVAL;
|
|
|
|
dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
|
|
|
|
if (!rdev->ops->change_mpath)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
|
|
return -EOPNOTSUPP;
|
|
|
|
return rdev_change_mpath(rdev, dev, dst, next_hop);
|
|
}
|
|
|
|
static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
u8 *dst = NULL;
|
|
u8 *next_hop = NULL;
|
|
|
|
if (!info->attrs[NL80211_ATTR_MAC])
|
|
return -EINVAL;
|
|
|
|
if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
|
|
return -EINVAL;
|
|
|
|
dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
|
|
|
|
if (!rdev->ops->add_mpath)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
|
|
return -EOPNOTSUPP;
|
|
|
|
return rdev_add_mpath(rdev, dev, dst, next_hop);
|
|
}
|
|
|
|
static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
u8 *dst = NULL;
|
|
|
|
if (info->attrs[NL80211_ATTR_MAC])
|
|
dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
|
|
if (!rdev->ops->del_mpath)
|
|
return -EOPNOTSUPP;
|
|
|
|
return rdev_del_mpath(rdev, dev, dst);
|
|
}
|
|
|
|
static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
int err;
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct mpath_info pinfo;
|
|
struct sk_buff *msg;
|
|
u8 *dst = NULL;
|
|
u8 mpp[ETH_ALEN];
|
|
|
|
memset(&pinfo, 0, sizeof(pinfo));
|
|
|
|
if (!info->attrs[NL80211_ATTR_MAC])
|
|
return -EINVAL;
|
|
|
|
dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
|
|
if (!rdev->ops->get_mpp)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
|
|
return -EOPNOTSUPP;
|
|
|
|
err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
|
|
if (err)
|
|
return err;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return -ENOMEM;
|
|
|
|
if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
|
|
dev, dst, mpp, &pinfo) < 0) {
|
|
nlmsg_free(msg);
|
|
return -ENOBUFS;
|
|
}
|
|
|
|
return genlmsg_reply(msg, info);
|
|
}
|
|
|
|
static int nl80211_dump_mpp(struct sk_buff *skb,
|
|
struct netlink_callback *cb)
|
|
{
|
|
struct mpath_info pinfo;
|
|
struct cfg80211_registered_device *rdev;
|
|
struct wireless_dev *wdev;
|
|
u8 dst[ETH_ALEN];
|
|
u8 mpp[ETH_ALEN];
|
|
int path_idx = cb->args[2];
|
|
int err;
|
|
|
|
rtnl_lock();
|
|
err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
|
|
if (err)
|
|
goto out_err;
|
|
|
|
if (!rdev->ops->dump_mpp) {
|
|
err = -EOPNOTSUPP;
|
|
goto out_err;
|
|
}
|
|
|
|
if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
|
|
err = -EOPNOTSUPP;
|
|
goto out_err;
|
|
}
|
|
|
|
while (1) {
|
|
err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
|
|
mpp, &pinfo);
|
|
if (err == -ENOENT)
|
|
break;
|
|
if (err)
|
|
goto out_err;
|
|
|
|
if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
|
|
cb->nlh->nlmsg_seq, NLM_F_MULTI,
|
|
wdev->netdev, dst, mpp,
|
|
&pinfo) < 0)
|
|
goto out;
|
|
|
|
path_idx++;
|
|
}
|
|
|
|
out:
|
|
cb->args[2] = path_idx;
|
|
err = skb->len;
|
|
out_err:
|
|
rtnl_unlock();
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct bss_parameters params;
|
|
int err;
|
|
|
|
memset(¶ms, 0, sizeof(params));
|
|
/* default to not changing parameters */
|
|
params.use_cts_prot = -1;
|
|
params.use_short_preamble = -1;
|
|
params.use_short_slot_time = -1;
|
|
params.ap_isolate = -1;
|
|
params.ht_opmode = -1;
|
|
params.p2p_ctwindow = -1;
|
|
params.p2p_opp_ps = -1;
|
|
|
|
if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
|
|
params.use_cts_prot =
|
|
nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
|
|
if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
|
|
params.use_short_preamble =
|
|
nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
|
|
if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
|
|
params.use_short_slot_time =
|
|
nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
|
|
if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
|
|
params.basic_rates =
|
|
nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
|
|
params.basic_rates_len =
|
|
nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
|
|
}
|
|
if (info->attrs[NL80211_ATTR_AP_ISOLATE])
|
|
params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
|
|
if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
|
|
params.ht_opmode =
|
|
nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
|
|
|
|
if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
|
|
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
|
|
return -EINVAL;
|
|
params.p2p_ctwindow =
|
|
nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
|
|
if (params.p2p_ctwindow < 0)
|
|
return -EINVAL;
|
|
if (params.p2p_ctwindow != 0 &&
|
|
!(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
|
|
u8 tmp;
|
|
|
|
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
|
|
return -EINVAL;
|
|
tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
|
|
if (tmp > 1)
|
|
return -EINVAL;
|
|
params.p2p_opp_ps = tmp;
|
|
if (params.p2p_opp_ps &&
|
|
!(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!rdev->ops->change_bss)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
|
|
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
|
|
return -EOPNOTSUPP;
|
|
|
|
wdev_lock(wdev);
|
|
err = rdev_change_bss(rdev, dev, ¶ms);
|
|
wdev_unlock(wdev);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
char *data = NULL;
|
|
bool is_indoor;
|
|
enum nl80211_user_reg_hint_type user_reg_hint_type;
|
|
u32 owner_nlportid;
|
|
|
|
/*
|
|
* You should only get this when cfg80211 hasn't yet initialized
|
|
* completely when built-in to the kernel right between the time
|
|
* window between nl80211_init() and regulatory_init(), if that is
|
|
* even possible.
|
|
*/
|
|
if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
|
|
return -EINPROGRESS;
|
|
|
|
if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
|
|
user_reg_hint_type =
|
|
nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
|
|
else
|
|
user_reg_hint_type = NL80211_USER_REG_HINT_USER;
|
|
|
|
switch (user_reg_hint_type) {
|
|
case NL80211_USER_REG_HINT_USER:
|
|
case NL80211_USER_REG_HINT_CELL_BASE:
|
|
if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
|
|
return -EINVAL;
|
|
|
|
data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
|
|
return regulatory_hint_user(data, user_reg_hint_type);
|
|
case NL80211_USER_REG_HINT_INDOOR:
|
|
if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
|
|
owner_nlportid = info->snd_portid;
|
|
is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
|
|
} else {
|
|
owner_nlportid = 0;
|
|
is_indoor = true;
|
|
}
|
|
|
|
return regulatory_hint_indoor(is_indoor, owner_nlportid);
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
static int nl80211_reload_regdb(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
return reg_reload_regdb();
|
|
}
|
|
|
|
static int nl80211_get_mesh_config(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct mesh_config cur_params;
|
|
int err = 0;
|
|
void *hdr;
|
|
struct nlattr *pinfoattr;
|
|
struct sk_buff *msg;
|
|
|
|
if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!rdev->ops->get_mesh_config)
|
|
return -EOPNOTSUPP;
|
|
|
|
wdev_lock(wdev);
|
|
/* If not connected, get default parameters */
|
|
if (!wdev->mesh_id_len)
|
|
memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
|
|
else
|
|
err = rdev_get_mesh_config(rdev, dev, &cur_params);
|
|
wdev_unlock(wdev);
|
|
|
|
if (err)
|
|
return err;
|
|
|
|
/* Draw up a netlink message to send back */
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return -ENOMEM;
|
|
hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
|
|
NL80211_CMD_GET_MESH_CONFIG);
|
|
if (!hdr)
|
|
goto out;
|
|
pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
|
|
if (!pinfoattr)
|
|
goto nla_put_failure;
|
|
if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
|
|
nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
|
|
cur_params.dot11MeshRetryTimeout) ||
|
|
nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
|
|
cur_params.dot11MeshConfirmTimeout) ||
|
|
nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
|
|
cur_params.dot11MeshHoldingTimeout) ||
|
|
nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
|
|
cur_params.dot11MeshMaxPeerLinks) ||
|
|
nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
|
|
cur_params.dot11MeshMaxRetries) ||
|
|
nla_put_u8(msg, NL80211_MESHCONF_TTL,
|
|
cur_params.dot11MeshTTL) ||
|
|
nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
|
|
cur_params.element_ttl) ||
|
|
nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
|
|
cur_params.auto_open_plinks) ||
|
|
nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
|
|
cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
|
|
nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
|
|
cur_params.dot11MeshHWMPmaxPREQretries) ||
|
|
nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
|
|
cur_params.path_refresh_time) ||
|
|
nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
|
|
cur_params.min_discovery_timeout) ||
|
|
nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
|
|
cur_params.dot11MeshHWMPactivePathTimeout) ||
|
|
nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
|
|
cur_params.dot11MeshHWMPpreqMinInterval) ||
|
|
nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
|
|
cur_params.dot11MeshHWMPperrMinInterval) ||
|
|
nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
|
|
cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
|
|
nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
|
|
cur_params.dot11MeshHWMPRootMode) ||
|
|
nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
|
|
cur_params.dot11MeshHWMPRannInterval) ||
|
|
nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
|
|
cur_params.dot11MeshGateAnnouncementProtocol) ||
|
|
nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
|
|
cur_params.dot11MeshForwarding) ||
|
|
nla_put_s32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
|
|
cur_params.rssi_threshold) ||
|
|
nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
|
|
cur_params.ht_opmode) ||
|
|
nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
|
|
cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
|
|
nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
|
|
cur_params.dot11MeshHWMProotInterval) ||
|
|
nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
|
|
cur_params.dot11MeshHWMPconfirmationInterval) ||
|
|
nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
|
|
cur_params.power_mode) ||
|
|
nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
|
|
cur_params.dot11MeshAwakeWindowDuration) ||
|
|
nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
|
|
cur_params.plink_timeout))
|
|
goto nla_put_failure;
|
|
nla_nest_end(msg, pinfoattr);
|
|
genlmsg_end(msg, hdr);
|
|
return genlmsg_reply(msg, info);
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
out:
|
|
nlmsg_free(msg);
|
|
return -ENOBUFS;
|
|
}
|
|
|
|
static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
|
|
[NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
|
|
[NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
|
|
[NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
|
|
[NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
|
|
[NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
|
|
[NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
|
|
[NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
|
|
[NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
|
|
[NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
|
|
[NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
|
|
[NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
|
|
[NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
|
|
[NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
|
|
[NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
|
|
[NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
|
|
[NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
|
|
[NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
|
|
[NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
|
|
[NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
|
|
[NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
|
|
[NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
|
|
[NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
|
|
[NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
|
|
[NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
|
|
[NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
|
|
[NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
|
|
[NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
|
|
[NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
|
|
};
|
|
|
|
static const struct nla_policy
|
|
nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
|
|
[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
|
|
[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
|
|
[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
|
|
[NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
|
|
[NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
|
|
[NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
|
|
[NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
|
|
.len = IEEE80211_MAX_DATA_LEN },
|
|
[NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
|
|
};
|
|
|
|
static int nl80211_check_bool(const struct nlattr *nla, u8 min, u8 max, bool *out)
|
|
{
|
|
u8 val = nla_get_u8(nla);
|
|
if (val < min || val > max)
|
|
return -EINVAL;
|
|
*out = val;
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_check_u8(const struct nlattr *nla, u8 min, u8 max, u8 *out)
|
|
{
|
|
u8 val = nla_get_u8(nla);
|
|
if (val < min || val > max)
|
|
return -EINVAL;
|
|
*out = val;
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_check_u16(const struct nlattr *nla, u16 min, u16 max, u16 *out)
|
|
{
|
|
u16 val = nla_get_u16(nla);
|
|
if (val < min || val > max)
|
|
return -EINVAL;
|
|
*out = val;
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_check_u32(const struct nlattr *nla, u32 min, u32 max, u32 *out)
|
|
{
|
|
u32 val = nla_get_u32(nla);
|
|
if (val < min || val > max)
|
|
return -EINVAL;
|
|
*out = val;
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_check_s32(const struct nlattr *nla, s32 min, s32 max, s32 *out)
|
|
{
|
|
s32 val = nla_get_s32(nla);
|
|
if (val < min || val > max)
|
|
return -EINVAL;
|
|
*out = val;
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_check_power_mode(const struct nlattr *nla,
|
|
enum nl80211_mesh_power_mode min,
|
|
enum nl80211_mesh_power_mode max,
|
|
enum nl80211_mesh_power_mode *out)
|
|
{
|
|
u32 val = nla_get_u32(nla);
|
|
if (val < min || val > max)
|
|
return -EINVAL;
|
|
*out = val;
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_parse_mesh_config(struct genl_info *info,
|
|
struct mesh_config *cfg,
|
|
u32 *mask_out)
|
|
{
|
|
struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
|
|
u32 mask = 0;
|
|
u16 ht_opmode;
|
|
|
|
#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
|
|
do { \
|
|
if (tb[attr]) { \
|
|
if (fn(tb[attr], min, max, &cfg->param)) \
|
|
return -EINVAL; \
|
|
mask |= (1 << (attr - 1)); \
|
|
} \
|
|
} while (0)
|
|
|
|
if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
|
|
return -EINVAL;
|
|
if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
|
|
info->attrs[NL80211_ATTR_MESH_CONFIG],
|
|
nl80211_meshconf_params_policy, info->extack))
|
|
return -EINVAL;
|
|
|
|
/* This makes sure that there aren't more than 32 mesh config
|
|
* parameters (otherwise our bitfield scheme would not work.) */
|
|
BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
|
|
|
|
/* Fill in the params struct */
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
|
|
mask, NL80211_MESHCONF_RETRY_TIMEOUT,
|
|
nl80211_check_u16);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
|
|
mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
|
|
nl80211_check_u16);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
|
|
mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
|
|
nl80211_check_u16);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
|
|
mask, NL80211_MESHCONF_MAX_PEER_LINKS,
|
|
nl80211_check_u16);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
|
|
mask, NL80211_MESHCONF_MAX_RETRIES,
|
|
nl80211_check_u8);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
|
|
mask, NL80211_MESHCONF_TTL, nl80211_check_u8);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
|
|
mask, NL80211_MESHCONF_ELEMENT_TTL,
|
|
nl80211_check_u8);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
|
|
mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
|
|
nl80211_check_bool);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
|
|
1, 255, mask,
|
|
NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
|
|
nl80211_check_u32);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
|
|
mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
|
|
nl80211_check_u8);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
|
|
mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
|
|
nl80211_check_u32);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
|
|
mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
|
|
nl80211_check_u16);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
|
|
1, 65535, mask,
|
|
NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
|
|
nl80211_check_u32);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
|
|
1, 65535, mask,
|
|
NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
|
|
nl80211_check_u16);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
|
|
1, 65535, mask,
|
|
NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
|
|
nl80211_check_u16);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
|
|
dot11MeshHWMPnetDiameterTraversalTime,
|
|
1, 65535, mask,
|
|
NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
|
|
nl80211_check_u16);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
|
|
mask, NL80211_MESHCONF_HWMP_ROOTMODE,
|
|
nl80211_check_u8);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
|
|
mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
|
|
nl80211_check_u16);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
|
|
dot11MeshGateAnnouncementProtocol, 0, 1,
|
|
mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
|
|
nl80211_check_bool);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
|
|
mask, NL80211_MESHCONF_FORWARDING,
|
|
nl80211_check_bool);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
|
|
mask, NL80211_MESHCONF_RSSI_THRESHOLD,
|
|
nl80211_check_s32);
|
|
/*
|
|
* Check HT operation mode based on
|
|
* IEEE 802.11 2012 8.4.2.59 HT Operation element.
|
|
*/
|
|
if (tb[NL80211_MESHCONF_HT_OPMODE]) {
|
|
ht_opmode = nla_get_u16(tb[NL80211_MESHCONF_HT_OPMODE]);
|
|
|
|
if (ht_opmode & ~(IEEE80211_HT_OP_MODE_PROTECTION |
|
|
IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT |
|
|
IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
|
|
return -EINVAL;
|
|
|
|
if ((ht_opmode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT) &&
|
|
(ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
|
|
return -EINVAL;
|
|
|
|
switch (ht_opmode & IEEE80211_HT_OP_MODE_PROTECTION) {
|
|
case IEEE80211_HT_OP_MODE_PROTECTION_NONE:
|
|
case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ:
|
|
if (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT)
|
|
return -EINVAL;
|
|
break;
|
|
case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER:
|
|
case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED:
|
|
if (!(ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
|
|
return -EINVAL;
|
|
break;
|
|
}
|
|
cfg->ht_opmode = ht_opmode;
|
|
mask |= (1 << (NL80211_MESHCONF_HT_OPMODE - 1));
|
|
}
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
|
|
1, 65535, mask,
|
|
NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
|
|
nl80211_check_u32);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
|
|
mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
|
|
nl80211_check_u16);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
|
|
dot11MeshHWMPconfirmationInterval,
|
|
1, 65535, mask,
|
|
NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
|
|
nl80211_check_u16);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
|
|
NL80211_MESH_POWER_ACTIVE,
|
|
NL80211_MESH_POWER_MAX,
|
|
mask, NL80211_MESHCONF_POWER_MODE,
|
|
nl80211_check_power_mode);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
|
|
0, 65535, mask,
|
|
NL80211_MESHCONF_AWAKE_WINDOW, nl80211_check_u16);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
|
|
mask, NL80211_MESHCONF_PLINK_TIMEOUT,
|
|
nl80211_check_u32);
|
|
if (mask_out)
|
|
*mask_out = mask;
|
|
|
|
return 0;
|
|
|
|
#undef FILL_IN_MESH_PARAM_IF_SET
|
|
}
|
|
|
|
static int nl80211_parse_mesh_setup(struct genl_info *info,
|
|
struct mesh_setup *setup)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
|
|
|
|
if (!info->attrs[NL80211_ATTR_MESH_SETUP])
|
|
return -EINVAL;
|
|
if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
|
|
info->attrs[NL80211_ATTR_MESH_SETUP],
|
|
nl80211_mesh_setup_params_policy, info->extack))
|
|
return -EINVAL;
|
|
|
|
if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
|
|
setup->sync_method =
|
|
(nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
|
|
IEEE80211_SYNC_METHOD_VENDOR :
|
|
IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
|
|
|
|
if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
|
|
setup->path_sel_proto =
|
|
(nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
|
|
IEEE80211_PATH_PROTOCOL_VENDOR :
|
|
IEEE80211_PATH_PROTOCOL_HWMP;
|
|
|
|
if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
|
|
setup->path_metric =
|
|
(nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
|
|
IEEE80211_PATH_METRIC_VENDOR :
|
|
IEEE80211_PATH_METRIC_AIRTIME;
|
|
|
|
if (tb[NL80211_MESH_SETUP_IE]) {
|
|
struct nlattr *ieattr =
|
|
tb[NL80211_MESH_SETUP_IE];
|
|
if (!is_valid_ie_attr(ieattr))
|
|
return -EINVAL;
|
|
setup->ie = nla_data(ieattr);
|
|
setup->ie_len = nla_len(ieattr);
|
|
}
|
|
if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
|
|
!(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
|
|
return -EINVAL;
|
|
setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
|
|
setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
|
|
setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
|
|
if (setup->is_secure)
|
|
setup->user_mpm = true;
|
|
|
|
if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
|
|
if (!setup->user_mpm)
|
|
return -EINVAL;
|
|
setup->auth_id =
|
|
nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_update_mesh_config(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct mesh_config cfg;
|
|
u32 mask;
|
|
int err;
|
|
|
|
if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!rdev->ops->update_mesh_config)
|
|
return -EOPNOTSUPP;
|
|
|
|
err = nl80211_parse_mesh_config(info, &cfg, &mask);
|
|
if (err)
|
|
return err;
|
|
|
|
wdev_lock(wdev);
|
|
if (!wdev->mesh_id_len)
|
|
err = -ENOLINK;
|
|
|
|
if (!err)
|
|
err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
|
|
|
|
wdev_unlock(wdev);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
|
|
struct sk_buff *msg)
|
|
{
|
|
struct nlattr *nl_reg_rules;
|
|
unsigned int i;
|
|
|
|
if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
|
|
(regdom->dfs_region &&
|
|
nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
|
|
goto nla_put_failure;
|
|
|
|
nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
|
|
if (!nl_reg_rules)
|
|
goto nla_put_failure;
|
|
|
|
for (i = 0; i < regdom->n_reg_rules; i++) {
|
|
struct nlattr *nl_reg_rule;
|
|
const struct ieee80211_reg_rule *reg_rule;
|
|
const struct ieee80211_freq_range *freq_range;
|
|
const struct ieee80211_power_rule *power_rule;
|
|
unsigned int max_bandwidth_khz;
|
|
|
|
reg_rule = ®dom->reg_rules[i];
|
|
freq_range = ®_rule->freq_range;
|
|
power_rule = ®_rule->power_rule;
|
|
|
|
nl_reg_rule = nla_nest_start(msg, i);
|
|
if (!nl_reg_rule)
|
|
goto nla_put_failure;
|
|
|
|
max_bandwidth_khz = freq_range->max_bandwidth_khz;
|
|
if (!max_bandwidth_khz)
|
|
max_bandwidth_khz = reg_get_max_bandwidth(regdom,
|
|
reg_rule);
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
|
|
reg_rule->flags) ||
|
|
nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
|
|
freq_range->start_freq_khz) ||
|
|
nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
|
|
freq_range->end_freq_khz) ||
|
|
nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
|
|
max_bandwidth_khz) ||
|
|
nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
|
|
power_rule->max_antenna_gain) ||
|
|
nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
|
|
power_rule->max_eirp) ||
|
|
nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
|
|
reg_rule->dfs_cac_ms))
|
|
goto nla_put_failure;
|
|
|
|
nla_nest_end(msg, nl_reg_rule);
|
|
}
|
|
|
|
nla_nest_end(msg, nl_reg_rules);
|
|
return 0;
|
|
|
|
nla_put_failure:
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
const struct ieee80211_regdomain *regdom = NULL;
|
|
struct cfg80211_registered_device *rdev;
|
|
struct wiphy *wiphy = NULL;
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return -ENOBUFS;
|
|
|
|
hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
|
|
NL80211_CMD_GET_REG);
|
|
if (!hdr)
|
|
goto put_failure;
|
|
|
|
if (info->attrs[NL80211_ATTR_WIPHY]) {
|
|
bool self_managed;
|
|
|
|
rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
|
|
if (IS_ERR(rdev)) {
|
|
nlmsg_free(msg);
|
|
return PTR_ERR(rdev);
|
|
}
|
|
|
|
wiphy = &rdev->wiphy;
|
|
self_managed = wiphy->regulatory_flags &
|
|
REGULATORY_WIPHY_SELF_MANAGED;
|
|
regdom = get_wiphy_regdom(wiphy);
|
|
|
|
/* a self-managed-reg device must have a private regdom */
|
|
if (WARN_ON(!regdom && self_managed)) {
|
|
nlmsg_free(msg);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (regdom &&
|
|
nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
|
|
goto nla_put_failure;
|
|
}
|
|
|
|
if (!wiphy && reg_last_request_cell_base() &&
|
|
nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
|
|
NL80211_USER_REG_HINT_CELL_BASE))
|
|
goto nla_put_failure;
|
|
|
|
rcu_read_lock();
|
|
|
|
if (!regdom)
|
|
regdom = rcu_dereference(cfg80211_regdomain);
|
|
|
|
if (nl80211_put_regdom(regdom, msg))
|
|
goto nla_put_failure_rcu;
|
|
|
|
rcu_read_unlock();
|
|
|
|
genlmsg_end(msg, hdr);
|
|
return genlmsg_reply(msg, info);
|
|
|
|
nla_put_failure_rcu:
|
|
rcu_read_unlock();
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
put_failure:
|
|
nlmsg_free(msg);
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
|
|
u32 seq, int flags, struct wiphy *wiphy,
|
|
const struct ieee80211_regdomain *regdom)
|
|
{
|
|
void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
|
|
NL80211_CMD_GET_REG);
|
|
|
|
if (!hdr)
|
|
return -1;
|
|
|
|
genl_dump_check_consistent(cb, hdr);
|
|
|
|
if (nl80211_put_regdom(regdom, msg))
|
|
goto nla_put_failure;
|
|
|
|
if (!wiphy && reg_last_request_cell_base() &&
|
|
nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
|
|
NL80211_USER_REG_HINT_CELL_BASE))
|
|
goto nla_put_failure;
|
|
|
|
if (wiphy &&
|
|
nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
|
|
goto nla_put_failure;
|
|
|
|
if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
|
|
nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
return 0;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
static int nl80211_get_reg_dump(struct sk_buff *skb,
|
|
struct netlink_callback *cb)
|
|
{
|
|
const struct ieee80211_regdomain *regdom = NULL;
|
|
struct cfg80211_registered_device *rdev;
|
|
int err, reg_idx, start = cb->args[2];
|
|
|
|
rtnl_lock();
|
|
|
|
if (cfg80211_regdomain && start == 0) {
|
|
err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
|
|
NLM_F_MULTI, NULL,
|
|
rtnl_dereference(cfg80211_regdomain));
|
|
if (err < 0)
|
|
goto out_err;
|
|
}
|
|
|
|
/* the global regdom is idx 0 */
|
|
reg_idx = 1;
|
|
list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
|
|
regdom = get_wiphy_regdom(&rdev->wiphy);
|
|
if (!regdom)
|
|
continue;
|
|
|
|
if (++reg_idx <= start)
|
|
continue;
|
|
|
|
err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
|
|
NLM_F_MULTI, &rdev->wiphy, regdom);
|
|
if (err < 0) {
|
|
reg_idx--;
|
|
break;
|
|
}
|
|
}
|
|
|
|
cb->args[2] = reg_idx;
|
|
err = skb->len;
|
|
out_err:
|
|
rtnl_unlock();
|
|
return err;
|
|
}
|
|
|
|
#ifdef CONFIG_CFG80211_CRDA_SUPPORT
|
|
static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
|
|
[NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
|
|
[NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
|
|
[NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
|
|
[NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
|
|
[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
|
|
[NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
|
|
[NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
|
|
};
|
|
|
|
static int parse_reg_rule(struct nlattr *tb[],
|
|
struct ieee80211_reg_rule *reg_rule)
|
|
{
|
|
struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
|
|
struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
|
|
|
|
if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
|
|
return -EINVAL;
|
|
if (!tb[NL80211_ATTR_FREQ_RANGE_START])
|
|
return -EINVAL;
|
|
if (!tb[NL80211_ATTR_FREQ_RANGE_END])
|
|
return -EINVAL;
|
|
if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
|
|
return -EINVAL;
|
|
if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
|
|
return -EINVAL;
|
|
|
|
reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
|
|
|
|
freq_range->start_freq_khz =
|
|
nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
|
|
freq_range->end_freq_khz =
|
|
nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
|
|
freq_range->max_bandwidth_khz =
|
|
nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
|
|
|
|
power_rule->max_eirp =
|
|
nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
|
|
|
|
if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
|
|
power_rule->max_antenna_gain =
|
|
nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
|
|
|
|
if (tb[NL80211_ATTR_DFS_CAC_TIME])
|
|
reg_rule->dfs_cac_ms =
|
|
nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
|
|
struct nlattr *nl_reg_rule;
|
|
char *alpha2;
|
|
int rem_reg_rules, r;
|
|
u32 num_rules = 0, rule_idx = 0, size_of_regd;
|
|
enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
|
|
struct ieee80211_regdomain *rd;
|
|
|
|
if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
|
|
return -EINVAL;
|
|
|
|
if (!info->attrs[NL80211_ATTR_REG_RULES])
|
|
return -EINVAL;
|
|
|
|
alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
|
|
|
|
if (info->attrs[NL80211_ATTR_DFS_REGION])
|
|
dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
|
|
|
|
nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
|
|
rem_reg_rules) {
|
|
num_rules++;
|
|
if (num_rules > NL80211_MAX_SUPP_REG_RULES)
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!reg_is_valid_request(alpha2))
|
|
return -EINVAL;
|
|
|
|
size_of_regd = sizeof(struct ieee80211_regdomain) +
|
|
num_rules * sizeof(struct ieee80211_reg_rule);
|
|
|
|
rd = kzalloc(size_of_regd, GFP_KERNEL);
|
|
if (!rd)
|
|
return -ENOMEM;
|
|
|
|
rd->n_reg_rules = num_rules;
|
|
rd->alpha2[0] = alpha2[0];
|
|
rd->alpha2[1] = alpha2[1];
|
|
|
|
/*
|
|
* Disable DFS master mode if the DFS region was
|
|
* not supported or known on this kernel.
|
|
*/
|
|
if (reg_supported_dfs_region(dfs_region))
|
|
rd->dfs_region = dfs_region;
|
|
|
|
nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
|
|
rem_reg_rules) {
|
|
r = nla_parse_nested(tb, NL80211_REG_RULE_ATTR_MAX,
|
|
nl_reg_rule, reg_rule_policy,
|
|
info->extack);
|
|
if (r)
|
|
goto bad_reg;
|
|
r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
|
|
if (r)
|
|
goto bad_reg;
|
|
|
|
rule_idx++;
|
|
|
|
if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
|
|
r = -EINVAL;
|
|
goto bad_reg;
|
|
}
|
|
}
|
|
|
|
/* set_regdom takes ownership of rd */
|
|
return set_regdom(rd, REGD_SOURCE_CRDA);
|
|
bad_reg:
|
|
kfree(rd);
|
|
return r;
|
|
}
|
|
#endif /* CONFIG_CFG80211_CRDA_SUPPORT */
|
|
|
|
static int validate_scan_freqs(struct nlattr *freqs)
|
|
{
|
|
struct nlattr *attr1, *attr2;
|
|
int n_channels = 0, tmp1, tmp2;
|
|
|
|
nla_for_each_nested(attr1, freqs, tmp1)
|
|
if (nla_len(attr1) != sizeof(u32))
|
|
return 0;
|
|
|
|
nla_for_each_nested(attr1, freqs, tmp1) {
|
|
n_channels++;
|
|
/*
|
|
* Some hardware has a limited channel list for
|
|
* scanning, and it is pretty much nonsensical
|
|
* to scan for a channel twice, so disallow that
|
|
* and don't require drivers to check that the
|
|
* channel list they get isn't longer than what
|
|
* they can scan, as long as they can scan all
|
|
* the channels they registered at once.
|
|
*/
|
|
nla_for_each_nested(attr2, freqs, tmp2)
|
|
if (attr1 != attr2 &&
|
|
nla_get_u32(attr1) == nla_get_u32(attr2))
|
|
return 0;
|
|
}
|
|
|
|
return n_channels;
|
|
}
|
|
|
|
static bool is_band_valid(struct wiphy *wiphy, enum nl80211_band b)
|
|
{
|
|
return b < NUM_NL80211_BANDS && wiphy->bands[b];
|
|
}
|
|
|
|
static int parse_bss_select(struct nlattr *nla, struct wiphy *wiphy,
|
|
struct cfg80211_bss_selection *bss_select)
|
|
{
|
|
struct nlattr *attr[NL80211_BSS_SELECT_ATTR_MAX + 1];
|
|
struct nlattr *nest;
|
|
int err;
|
|
bool found = false;
|
|
int i;
|
|
|
|
/* only process one nested attribute */
|
|
nest = nla_data(nla);
|
|
if (!nla_ok(nest, nla_len(nest)))
|
|
return -EINVAL;
|
|
|
|
err = nla_parse_nested(attr, NL80211_BSS_SELECT_ATTR_MAX, nest,
|
|
nl80211_bss_select_policy, NULL);
|
|
if (err)
|
|
return err;
|
|
|
|
/* only one attribute may be given */
|
|
for (i = 0; i <= NL80211_BSS_SELECT_ATTR_MAX; i++) {
|
|
if (attr[i]) {
|
|
if (found)
|
|
return -EINVAL;
|
|
found = true;
|
|
}
|
|
}
|
|
|
|
bss_select->behaviour = __NL80211_BSS_SELECT_ATTR_INVALID;
|
|
|
|
if (attr[NL80211_BSS_SELECT_ATTR_RSSI])
|
|
bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI;
|
|
|
|
if (attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]) {
|
|
bss_select->behaviour = NL80211_BSS_SELECT_ATTR_BAND_PREF;
|
|
bss_select->param.band_pref =
|
|
nla_get_u32(attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]);
|
|
if (!is_band_valid(wiphy, bss_select->param.band_pref))
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]) {
|
|
struct nl80211_bss_select_rssi_adjust *adj_param;
|
|
|
|
adj_param = nla_data(attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]);
|
|
bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI_ADJUST;
|
|
bss_select->param.adjust.band = adj_param->band;
|
|
bss_select->param.adjust.delta = adj_param->delta;
|
|
if (!is_band_valid(wiphy, bss_select->param.adjust.band))
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* user-space did not provide behaviour attribute */
|
|
if (bss_select->behaviour == __NL80211_BSS_SELECT_ATTR_INVALID)
|
|
return -EINVAL;
|
|
|
|
if (!(wiphy->bss_select_support & BIT(bss_select->behaviour)))
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_parse_random_mac(struct nlattr **attrs,
|
|
u8 *mac_addr, u8 *mac_addr_mask)
|
|
{
|
|
int i;
|
|
|
|
if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
|
|
eth_zero_addr(mac_addr);
|
|
eth_zero_addr(mac_addr_mask);
|
|
mac_addr[0] = 0x2;
|
|
mac_addr_mask[0] = 0x3;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* need both or none */
|
|
if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
|
|
return -EINVAL;
|
|
|
|
memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
|
|
memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
|
|
|
|
/* don't allow or configure an mcast address */
|
|
if (!is_multicast_ether_addr(mac_addr_mask) ||
|
|
is_multicast_ether_addr(mac_addr))
|
|
return -EINVAL;
|
|
|
|
/*
|
|
* allow users to pass a MAC address that has bits set outside
|
|
* of the mask, but don't bother drivers with having to deal
|
|
* with such bits
|
|
*/
|
|
for (i = 0; i < ETH_ALEN; i++)
|
|
mac_addr[i] &= mac_addr_mask[i];
|
|
|
|
return 0;
|
|
}
|
|
|
|
static bool cfg80211_off_channel_oper_allowed(struct wireless_dev *wdev)
|
|
{
|
|
ASSERT_WDEV_LOCK(wdev);
|
|
|
|
if (!cfg80211_beaconing_iface_active(wdev))
|
|
return true;
|
|
|
|
if (!(wdev->chandef.chan->flags & IEEE80211_CHAN_RADAR))
|
|
return true;
|
|
|
|
return regulatory_pre_cac_allowed(wdev->wiphy);
|
|
}
|
|
|
|
static int
|
|
nl80211_check_scan_flags(struct wiphy *wiphy, struct wireless_dev *wdev,
|
|
void *request, struct nlattr **attrs,
|
|
bool is_sched_scan)
|
|
{
|
|
u8 *mac_addr, *mac_addr_mask;
|
|
u32 *flags;
|
|
enum nl80211_feature_flags randomness_flag;
|
|
|
|
if (!attrs[NL80211_ATTR_SCAN_FLAGS])
|
|
return 0;
|
|
|
|
if (is_sched_scan) {
|
|
struct cfg80211_sched_scan_request *req = request;
|
|
|
|
randomness_flag = wdev ?
|
|
NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR :
|
|
NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
|
|
flags = &req->flags;
|
|
mac_addr = req->mac_addr;
|
|
mac_addr_mask = req->mac_addr_mask;
|
|
} else {
|
|
struct cfg80211_scan_request *req = request;
|
|
|
|
randomness_flag = NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
|
|
flags = &req->flags;
|
|
mac_addr = req->mac_addr;
|
|
mac_addr_mask = req->mac_addr_mask;
|
|
}
|
|
|
|
*flags = nla_get_u32(attrs[NL80211_ATTR_SCAN_FLAGS]);
|
|
|
|
if ((*flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
|
|
!(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN))
|
|
return -EOPNOTSUPP;
|
|
|
|
if (*flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
|
|
int err;
|
|
|
|
if (!(wiphy->features & randomness_flag) ||
|
|
(wdev && wdev->current_bss))
|
|
return -EOPNOTSUPP;
|
|
|
|
err = nl80211_parse_random_mac(attrs, mac_addr, mac_addr_mask);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
if ((*flags & NL80211_SCAN_FLAG_FILS_MAX_CHANNEL_TIME) &&
|
|
!wiphy_ext_feature_isset(wiphy,
|
|
NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME))
|
|
return -EOPNOTSUPP;
|
|
|
|
if ((*flags & NL80211_SCAN_FLAG_ACCEPT_BCAST_PROBE_RESP) &&
|
|
!wiphy_ext_feature_isset(wiphy,
|
|
NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP))
|
|
return -EOPNOTSUPP;
|
|
|
|
if ((*flags & NL80211_SCAN_FLAG_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION) &&
|
|
!wiphy_ext_feature_isset(wiphy,
|
|
NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION))
|
|
return -EOPNOTSUPP;
|
|
|
|
if ((*flags & NL80211_SCAN_FLAG_OCE_PROBE_REQ_HIGH_TX_RATE) &&
|
|
!wiphy_ext_feature_isset(wiphy,
|
|
NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE))
|
|
return -EOPNOTSUPP;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct wireless_dev *wdev = info->user_ptr[1];
|
|
struct cfg80211_scan_request *request;
|
|
struct nlattr *attr;
|
|
struct wiphy *wiphy;
|
|
int err, tmp, n_ssids = 0, n_channels, i;
|
|
size_t ie_len;
|
|
|
|
if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
|
|
return -EINVAL;
|
|
|
|
wiphy = &rdev->wiphy;
|
|
|
|
if (wdev->iftype == NL80211_IFTYPE_NAN)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!rdev->ops->scan)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (rdev->scan_req || rdev->scan_msg) {
|
|
err = -EBUSY;
|
|
goto unlock;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
|
|
n_channels = validate_scan_freqs(
|
|
info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
|
|
if (!n_channels) {
|
|
err = -EINVAL;
|
|
goto unlock;
|
|
}
|
|
} else {
|
|
n_channels = ieee80211_get_num_supported_channels(wiphy);
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
|
|
nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
|
|
n_ssids++;
|
|
|
|
if (n_ssids > wiphy->max_scan_ssids) {
|
|
err = -EINVAL;
|
|
goto unlock;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_IE])
|
|
ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
|
|
else
|
|
ie_len = 0;
|
|
|
|
if (ie_len > wiphy->max_scan_ie_len) {
|
|
err = -EINVAL;
|
|
goto unlock;
|
|
}
|
|
|
|
request = kzalloc(sizeof(*request)
|
|
+ sizeof(*request->ssids) * n_ssids
|
|
+ sizeof(*request->channels) * n_channels
|
|
+ ie_len, GFP_KERNEL);
|
|
if (!request) {
|
|
err = -ENOMEM;
|
|
goto unlock;
|
|
}
|
|
|
|
if (n_ssids)
|
|
request->ssids = (void *)&request->channels[n_channels];
|
|
request->n_ssids = n_ssids;
|
|
if (ie_len) {
|
|
if (n_ssids)
|
|
request->ie = (void *)(request->ssids + n_ssids);
|
|
else
|
|
request->ie = (void *)(request->channels + n_channels);
|
|
}
|
|
|
|
i = 0;
|
|
if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
|
|
/* user specified, bail out if channel not found */
|
|
nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
|
|
struct ieee80211_channel *chan;
|
|
|
|
chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
|
|
|
|
if (!chan) {
|
|
err = -EINVAL;
|
|
goto out_free;
|
|
}
|
|
|
|
/* ignore disabled channels */
|
|
if (chan->flags & IEEE80211_CHAN_DISABLED)
|
|
continue;
|
|
|
|
request->channels[i] = chan;
|
|
i++;
|
|
}
|
|
} else {
|
|
enum nl80211_band band;
|
|
|
|
/* all channels */
|
|
for (band = 0; band < NUM_NL80211_BANDS; band++) {
|
|
int j;
|
|
|
|
if (!wiphy->bands[band])
|
|
continue;
|
|
for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
|
|
struct ieee80211_channel *chan;
|
|
|
|
chan = &wiphy->bands[band]->channels[j];
|
|
|
|
if (chan->flags & IEEE80211_CHAN_DISABLED)
|
|
continue;
|
|
|
|
request->channels[i] = chan;
|
|
i++;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!i) {
|
|
err = -EINVAL;
|
|
goto out_free;
|
|
}
|
|
|
|
request->n_channels = i;
|
|
|
|
wdev_lock(wdev);
|
|
if (!cfg80211_off_channel_oper_allowed(wdev)) {
|
|
struct ieee80211_channel *chan;
|
|
|
|
if (request->n_channels != 1) {
|
|
wdev_unlock(wdev);
|
|
err = -EBUSY;
|
|
goto out_free;
|
|
}
|
|
|
|
chan = request->channels[0];
|
|
if (chan->center_freq != wdev->chandef.chan->center_freq) {
|
|
wdev_unlock(wdev);
|
|
err = -EBUSY;
|
|
goto out_free;
|
|
}
|
|
}
|
|
wdev_unlock(wdev);
|
|
|
|
i = 0;
|
|
if (n_ssids) {
|
|
nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
|
|
if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
|
|
err = -EINVAL;
|
|
goto out_free;
|
|
}
|
|
request->ssids[i].ssid_len = nla_len(attr);
|
|
memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
|
|
i++;
|
|
}
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_IE]) {
|
|
request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
|
|
memcpy((void *)request->ie,
|
|
nla_data(info->attrs[NL80211_ATTR_IE]),
|
|
request->ie_len);
|
|
}
|
|
|
|
for (i = 0; i < NUM_NL80211_BANDS; i++)
|
|
if (wiphy->bands[i])
|
|
request->rates[i] =
|
|
(1 << wiphy->bands[i]->n_bitrates) - 1;
|
|
|
|
if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
|
|
nla_for_each_nested(attr,
|
|
info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
|
|
tmp) {
|
|
enum nl80211_band band = nla_type(attr);
|
|
|
|
if (band < 0 || band >= NUM_NL80211_BANDS) {
|
|
err = -EINVAL;
|
|
goto out_free;
|
|
}
|
|
|
|
if (!wiphy->bands[band])
|
|
continue;
|
|
|
|
err = ieee80211_get_ratemask(wiphy->bands[band],
|
|
nla_data(attr),
|
|
nla_len(attr),
|
|
&request->rates[band]);
|
|
if (err)
|
|
goto out_free;
|
|
}
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]) {
|
|
if (!wiphy_ext_feature_isset(wiphy,
|
|
NL80211_EXT_FEATURE_SET_SCAN_DWELL)) {
|
|
err = -EOPNOTSUPP;
|
|
goto out_free;
|
|
}
|
|
|
|
request->duration =
|
|
nla_get_u16(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]);
|
|
request->duration_mandatory =
|
|
nla_get_flag(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION_MANDATORY]);
|
|
}
|
|
|
|
err = nl80211_check_scan_flags(wiphy, wdev, request, info->attrs,
|
|
false);
|
|
if (err)
|
|
goto out_free;
|
|
|
|
request->no_cck =
|
|
nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
|
|
|
|
/* Initial implementation used NL80211_ATTR_MAC to set the specific
|
|
* BSSID to scan for. This was problematic because that same attribute
|
|
* was already used for another purpose (local random MAC address). The
|
|
* NL80211_ATTR_BSSID attribute was added to fix this. For backwards
|
|
* compatibility with older userspace components, also use the
|
|
* NL80211_ATTR_MAC value here if it can be determined to be used for
|
|
* the specific BSSID use case instead of the random MAC address
|
|
* (NL80211_ATTR_SCAN_FLAGS is used to enable random MAC address use).
|
|
*/
|
|
if (info->attrs[NL80211_ATTR_BSSID])
|
|
memcpy(request->bssid,
|
|
nla_data(info->attrs[NL80211_ATTR_BSSID]), ETH_ALEN);
|
|
else if (!(request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) &&
|
|
info->attrs[NL80211_ATTR_MAC])
|
|
memcpy(request->bssid, nla_data(info->attrs[NL80211_ATTR_MAC]),
|
|
ETH_ALEN);
|
|
else
|
|
eth_broadcast_addr(request->bssid);
|
|
|
|
request->wdev = wdev;
|
|
request->wiphy = &rdev->wiphy;
|
|
request->scan_start = jiffies;
|
|
|
|
rdev->scan_req = request;
|
|
err = rdev_scan(rdev, request);
|
|
|
|
if (!err) {
|
|
nl80211_send_scan_start(rdev, wdev);
|
|
if (wdev->netdev)
|
|
dev_hold(wdev->netdev);
|
|
} else {
|
|
out_free:
|
|
rdev->scan_req = NULL;
|
|
kfree(request);
|
|
}
|
|
|
|
unlock:
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct wireless_dev *wdev = info->user_ptr[1];
|
|
|
|
if (!rdev->ops->abort_scan)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (rdev->scan_msg)
|
|
return 0;
|
|
|
|
if (!rdev->scan_req)
|
|
return -ENOENT;
|
|
|
|
rdev_abort_scan(rdev, wdev);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
|
|
struct cfg80211_sched_scan_request *request,
|
|
struct nlattr **attrs)
|
|
{
|
|
int tmp, err, i = 0;
|
|
struct nlattr *attr;
|
|
|
|
if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
|
|
u32 interval;
|
|
|
|
/*
|
|
* If scan plans are not specified,
|
|
* %NL80211_ATTR_SCHED_SCAN_INTERVAL will be specified. In this
|
|
* case one scan plan will be set with the specified scan
|
|
* interval and infinite number of iterations.
|
|
*/
|
|
interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
|
|
if (!interval)
|
|
return -EINVAL;
|
|
|
|
request->scan_plans[0].interval =
|
|
DIV_ROUND_UP(interval, MSEC_PER_SEC);
|
|
if (!request->scan_plans[0].interval)
|
|
return -EINVAL;
|
|
|
|
if (request->scan_plans[0].interval >
|
|
wiphy->max_sched_scan_plan_interval)
|
|
request->scan_plans[0].interval =
|
|
wiphy->max_sched_scan_plan_interval;
|
|
|
|
return 0;
|
|
}
|
|
|
|
nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
|
|
struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
|
|
|
|
if (WARN_ON(i >= n_plans))
|
|
return -EINVAL;
|
|
|
|
err = nla_parse_nested(plan, NL80211_SCHED_SCAN_PLAN_MAX,
|
|
attr, nl80211_plan_policy, NULL);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
|
|
return -EINVAL;
|
|
|
|
request->scan_plans[i].interval =
|
|
nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
|
|
if (!request->scan_plans[i].interval ||
|
|
request->scan_plans[i].interval >
|
|
wiphy->max_sched_scan_plan_interval)
|
|
return -EINVAL;
|
|
|
|
if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
|
|
request->scan_plans[i].iterations =
|
|
nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
|
|
if (!request->scan_plans[i].iterations ||
|
|
(request->scan_plans[i].iterations >
|
|
wiphy->max_sched_scan_plan_iterations))
|
|
return -EINVAL;
|
|
} else if (i < n_plans - 1) {
|
|
/*
|
|
* All scan plans but the last one must specify
|
|
* a finite number of iterations
|
|
*/
|
|
return -EINVAL;
|
|
}
|
|
|
|
i++;
|
|
}
|
|
|
|
/*
|
|
* The last scan plan must not specify the number of
|
|
* iterations, it is supposed to run infinitely
|
|
*/
|
|
if (request->scan_plans[n_plans - 1].iterations)
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct cfg80211_sched_scan_request *
|
|
nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
|
|
struct nlattr **attrs, int max_match_sets)
|
|
{
|
|
struct cfg80211_sched_scan_request *request;
|
|
struct nlattr *attr;
|
|
int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
|
|
enum nl80211_band band;
|
|
size_t ie_len;
|
|
struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
|
|
s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
|
|
|
|
if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
|
|
n_channels = validate_scan_freqs(
|
|
attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
|
|
if (!n_channels)
|
|
return ERR_PTR(-EINVAL);
|
|
} else {
|
|
n_channels = ieee80211_get_num_supported_channels(wiphy);
|
|
}
|
|
|
|
if (attrs[NL80211_ATTR_SCAN_SSIDS])
|
|
nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
|
|
tmp)
|
|
n_ssids++;
|
|
|
|
if (n_ssids > wiphy->max_sched_scan_ssids)
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
/*
|
|
* First, count the number of 'real' matchsets. Due to an issue with
|
|
* the old implementation, matchsets containing only the RSSI attribute
|
|
* (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
|
|
* RSSI for all matchsets, rather than their own matchset for reporting
|
|
* all APs with a strong RSSI. This is needed to be compatible with
|
|
* older userspace that treated a matchset with only the RSSI as the
|
|
* global RSSI for all other matchsets - if there are other matchsets.
|
|
*/
|
|
if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
|
|
nla_for_each_nested(attr,
|
|
attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
|
|
tmp) {
|
|
struct nlattr *rssi;
|
|
|
|
err = nla_parse_nested(tb,
|
|
NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
|
|
attr, nl80211_match_policy,
|
|
NULL);
|
|
if (err)
|
|
return ERR_PTR(err);
|
|
|
|
/* SSID and BSSID are mutually exclusive */
|
|
if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID] &&
|
|
tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID])
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
/* add other standalone attributes here */
|
|
if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID] ||
|
|
tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID]) {
|
|
n_match_sets++;
|
|
continue;
|
|
}
|
|
rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
|
|
if (rssi)
|
|
default_match_rssi = nla_get_s32(rssi);
|
|
}
|
|
}
|
|
|
|
/* However, if there's no other matchset, add the RSSI one */
|
|
if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
|
|
n_match_sets = 1;
|
|
|
|
if (n_match_sets > max_match_sets)
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
if (attrs[NL80211_ATTR_IE])
|
|
ie_len = nla_len(attrs[NL80211_ATTR_IE]);
|
|
else
|
|
ie_len = 0;
|
|
|
|
if (ie_len > wiphy->max_sched_scan_ie_len)
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
|
|
/*
|
|
* NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
|
|
* each scan plan already specifies its own interval
|
|
*/
|
|
if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
nla_for_each_nested(attr,
|
|
attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
|
|
n_plans++;
|
|
} else {
|
|
/*
|
|
* The scan interval attribute is kept for backward
|
|
* compatibility. If no scan plans are specified and sched scan
|
|
* interval is specified, one scan plan will be set with this
|
|
* scan interval and infinite number of iterations.
|
|
*/
|
|
if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
n_plans = 1;
|
|
}
|
|
|
|
if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
if (!wiphy_ext_feature_isset(
|
|
wiphy, NL80211_EXT_FEATURE_SCHED_SCAN_RELATIVE_RSSI) &&
|
|
(attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI] ||
|
|
attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]))
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
request = kzalloc(sizeof(*request)
|
|
+ sizeof(*request->ssids) * n_ssids
|
|
+ sizeof(*request->match_sets) * n_match_sets
|
|
+ sizeof(*request->scan_plans) * n_plans
|
|
+ sizeof(*request->channels) * n_channels
|
|
+ ie_len, GFP_KERNEL);
|
|
if (!request)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
if (n_ssids)
|
|
request->ssids = (void *)&request->channels[n_channels];
|
|
request->n_ssids = n_ssids;
|
|
if (ie_len) {
|
|
if (n_ssids)
|
|
request->ie = (void *)(request->ssids + n_ssids);
|
|
else
|
|
request->ie = (void *)(request->channels + n_channels);
|
|
}
|
|
|
|
if (n_match_sets) {
|
|
if (request->ie)
|
|
request->match_sets = (void *)(request->ie + ie_len);
|
|
else if (n_ssids)
|
|
request->match_sets =
|
|
(void *)(request->ssids + n_ssids);
|
|
else
|
|
request->match_sets =
|
|
(void *)(request->channels + n_channels);
|
|
}
|
|
request->n_match_sets = n_match_sets;
|
|
|
|
if (n_match_sets)
|
|
request->scan_plans = (void *)(request->match_sets +
|
|
n_match_sets);
|
|
else if (request->ie)
|
|
request->scan_plans = (void *)(request->ie + ie_len);
|
|
else if (n_ssids)
|
|
request->scan_plans = (void *)(request->ssids + n_ssids);
|
|
else
|
|
request->scan_plans = (void *)(request->channels + n_channels);
|
|
|
|
request->n_scan_plans = n_plans;
|
|
|
|
i = 0;
|
|
if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
|
|
/* user specified, bail out if channel not found */
|
|
nla_for_each_nested(attr,
|
|
attrs[NL80211_ATTR_SCAN_FREQUENCIES],
|
|
tmp) {
|
|
struct ieee80211_channel *chan;
|
|
|
|
chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
|
|
|
|
if (!chan) {
|
|
err = -EINVAL;
|
|
goto out_free;
|
|
}
|
|
|
|
/* ignore disabled channels */
|
|
if (chan->flags & IEEE80211_CHAN_DISABLED)
|
|
continue;
|
|
|
|
request->channels[i] = chan;
|
|
i++;
|
|
}
|
|
} else {
|
|
/* all channels */
|
|
for (band = 0; band < NUM_NL80211_BANDS; band++) {
|
|
int j;
|
|
|
|
if (!wiphy->bands[band])
|
|
continue;
|
|
for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
|
|
struct ieee80211_channel *chan;
|
|
|
|
chan = &wiphy->bands[band]->channels[j];
|
|
|
|
if (chan->flags & IEEE80211_CHAN_DISABLED)
|
|
continue;
|
|
|
|
request->channels[i] = chan;
|
|
i++;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!i) {
|
|
err = -EINVAL;
|
|
goto out_free;
|
|
}
|
|
|
|
request->n_channels = i;
|
|
|
|
i = 0;
|
|
if (n_ssids) {
|
|
nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
|
|
tmp) {
|
|
if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
|
|
err = -EINVAL;
|
|
goto out_free;
|
|
}
|
|
request->ssids[i].ssid_len = nla_len(attr);
|
|
memcpy(request->ssids[i].ssid, nla_data(attr),
|
|
nla_len(attr));
|
|
i++;
|
|
}
|
|
}
|
|
|
|
i = 0;
|
|
if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
|
|
nla_for_each_nested(attr,
|
|
attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
|
|
tmp) {
|
|
struct nlattr *ssid, *bssid, *rssi;
|
|
|
|
err = nla_parse_nested(tb,
|
|
NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
|
|
attr, nl80211_match_policy,
|
|
NULL);
|
|
if (err)
|
|
goto out_free;
|
|
ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
|
|
bssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID];
|
|
if (ssid || bssid) {
|
|
if (WARN_ON(i >= n_match_sets)) {
|
|
/* this indicates a programming error,
|
|
* the loop above should have verified
|
|
* things properly
|
|
*/
|
|
err = -EINVAL;
|
|
goto out_free;
|
|
}
|
|
|
|
if (ssid) {
|
|
if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
|
|
err = -EINVAL;
|
|
goto out_free;
|
|
}
|
|
memcpy(request->match_sets[i].ssid.ssid,
|
|
nla_data(ssid), nla_len(ssid));
|
|
request->match_sets[i].ssid.ssid_len =
|
|
nla_len(ssid);
|
|
}
|
|
if (bssid) {
|
|
if (nla_len(bssid) != ETH_ALEN) {
|
|
err = -EINVAL;
|
|
goto out_free;
|
|
}
|
|
memcpy(request->match_sets[i].bssid,
|
|
nla_data(bssid), ETH_ALEN);
|
|
}
|
|
|
|
/* special attribute - old implementation w/a */
|
|
request->match_sets[i].rssi_thold =
|
|
default_match_rssi;
|
|
rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
|
|
if (rssi)
|
|
request->match_sets[i].rssi_thold =
|
|
nla_get_s32(rssi);
|
|
}
|
|
i++;
|
|
}
|
|
|
|
/* there was no other matchset, so the RSSI one is alone */
|
|
if (i == 0 && n_match_sets)
|
|
request->match_sets[0].rssi_thold = default_match_rssi;
|
|
|
|
request->min_rssi_thold = INT_MAX;
|
|
for (i = 0; i < n_match_sets; i++)
|
|
request->min_rssi_thold =
|
|
min(request->match_sets[i].rssi_thold,
|
|
request->min_rssi_thold);
|
|
} else {
|
|
request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
|
|
}
|
|
|
|
if (ie_len) {
|
|
request->ie_len = ie_len;
|
|
memcpy((void *)request->ie,
|
|
nla_data(attrs[NL80211_ATTR_IE]),
|
|
request->ie_len);
|
|
}
|
|
|
|
err = nl80211_check_scan_flags(wiphy, wdev, request, attrs, true);
|
|
if (err)
|
|
goto out_free;
|
|
|
|
if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
|
|
request->delay =
|
|
nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
|
|
|
|
if (attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI]) {
|
|
request->relative_rssi = nla_get_s8(
|
|
attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI]);
|
|
request->relative_rssi_set = true;
|
|
}
|
|
|
|
if (request->relative_rssi_set &&
|
|
attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]) {
|
|
struct nl80211_bss_select_rssi_adjust *rssi_adjust;
|
|
|
|
rssi_adjust = nla_data(
|
|
attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]);
|
|
request->rssi_adjust.band = rssi_adjust->band;
|
|
request->rssi_adjust.delta = rssi_adjust->delta;
|
|
if (!is_band_valid(wiphy, request->rssi_adjust.band)) {
|
|
err = -EINVAL;
|
|
goto out_free;
|
|
}
|
|
}
|
|
|
|
err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
|
|
if (err)
|
|
goto out_free;
|
|
|
|
request->scan_start = jiffies;
|
|
|
|
return request;
|
|
|
|
out_free:
|
|
kfree(request);
|
|
return ERR_PTR(err);
|
|
}
|
|
|
|
static int nl80211_start_sched_scan(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct cfg80211_sched_scan_request *sched_scan_req;
|
|
bool want_multi;
|
|
int err;
|
|
|
|
if (!rdev->wiphy.max_sched_scan_reqs || !rdev->ops->sched_scan_start)
|
|
return -EOPNOTSUPP;
|
|
|
|
want_multi = info->attrs[NL80211_ATTR_SCHED_SCAN_MULTI];
|
|
err = cfg80211_sched_scan_req_possible(rdev, want_multi);
|
|
if (err)
|
|
return err;
|
|
|
|
sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
|
|
info->attrs,
|
|
rdev->wiphy.max_match_sets);
|
|
|
|
err = PTR_ERR_OR_ZERO(sched_scan_req);
|
|
if (err)
|
|
goto out_err;
|
|
|
|
/* leave request id zero for legacy request
|
|
* or if driver does not support multi-scheduled scan
|
|
*/
|
|
if (want_multi && rdev->wiphy.max_sched_scan_reqs > 1) {
|
|
while (!sched_scan_req->reqid)
|
|
sched_scan_req->reqid = rdev->wiphy.cookie_counter++;
|
|
}
|
|
|
|
err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
|
|
if (err)
|
|
goto out_free;
|
|
|
|
sched_scan_req->dev = dev;
|
|
sched_scan_req->wiphy = &rdev->wiphy;
|
|
|
|
if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
|
|
sched_scan_req->owner_nlportid = info->snd_portid;
|
|
|
|
cfg80211_add_sched_scan_req(rdev, sched_scan_req);
|
|
|
|
nl80211_send_sched_scan(sched_scan_req, NL80211_CMD_START_SCHED_SCAN);
|
|
return 0;
|
|
|
|
out_free:
|
|
kfree(sched_scan_req);
|
|
out_err:
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_stop_sched_scan(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct cfg80211_sched_scan_request *req;
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
u64 cookie;
|
|
|
|
if (!rdev->wiphy.max_sched_scan_reqs || !rdev->ops->sched_scan_stop)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (info->attrs[NL80211_ATTR_COOKIE]) {
|
|
cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
|
|
return __cfg80211_stop_sched_scan(rdev, cookie, false);
|
|
}
|
|
|
|
req = list_first_or_null_rcu(&rdev->sched_scan_req_list,
|
|
struct cfg80211_sched_scan_request,
|
|
list);
|
|
if (!req || req->reqid ||
|
|
(req->owner_nlportid &&
|
|
req->owner_nlportid != info->snd_portid))
|
|
return -ENOENT;
|
|
|
|
return cfg80211_stop_sched_scan_req(rdev, req, false);
|
|
}
|
|
|
|
static int nl80211_start_radar_detection(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct cfg80211_chan_def chandef;
|
|
enum nl80211_dfs_regions dfs_region;
|
|
unsigned int cac_time_ms;
|
|
int err;
|
|
|
|
dfs_region = reg_get_dfs_region(wdev->wiphy);
|
|
if (dfs_region == NL80211_DFS_UNSET)
|
|
return -EINVAL;
|
|
|
|
err = nl80211_parse_chandef(rdev, info, &chandef);
|
|
if (err)
|
|
return err;
|
|
|
|
if (netif_carrier_ok(dev))
|
|
return -EBUSY;
|
|
|
|
if (wdev->cac_started)
|
|
return -EBUSY;
|
|
|
|
err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
|
|
wdev->iftype);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
if (err == 0)
|
|
return -EINVAL;
|
|
|
|
if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
|
|
return -EINVAL;
|
|
|
|
if (!rdev->ops->start_radar_detection)
|
|
return -EOPNOTSUPP;
|
|
|
|
cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
|
|
if (WARN_ON(!cac_time_ms))
|
|
cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
|
|
|
|
err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
|
|
if (!err) {
|
|
wdev->chandef = chandef;
|
|
wdev->cac_started = true;
|
|
wdev->cac_start_time = jiffies;
|
|
wdev->cac_time_ms = cac_time_ms;
|
|
}
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct cfg80211_csa_settings params;
|
|
/* csa_attrs is defined static to avoid waste of stack size - this
|
|
* function is called under RTNL lock, so this should not be a problem.
|
|
*/
|
|
static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
|
|
int err;
|
|
bool need_new_beacon = false;
|
|
bool need_handle_dfs_flag = true;
|
|
int len, i;
|
|
u32 cs_count;
|
|
|
|
if (!rdev->ops->channel_switch ||
|
|
!(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
|
|
return -EOPNOTSUPP;
|
|
|
|
switch (dev->ieee80211_ptr->iftype) {
|
|
case NL80211_IFTYPE_AP:
|
|
case NL80211_IFTYPE_P2P_GO:
|
|
need_new_beacon = true;
|
|
/* For all modes except AP the handle_dfs flag needs to be
|
|
* supplied to tell the kernel that userspace will handle radar
|
|
* events when they happen. Otherwise a switch to a channel
|
|
* requiring DFS will be rejected.
|
|
*/
|
|
need_handle_dfs_flag = false;
|
|
|
|
/* useless if AP is not running */
|
|
if (!wdev->beacon_interval)
|
|
return -ENOTCONN;
|
|
break;
|
|
case NL80211_IFTYPE_ADHOC:
|
|
if (!wdev->ssid_len)
|
|
return -ENOTCONN;
|
|
break;
|
|
case NL80211_IFTYPE_MESH_POINT:
|
|
if (!wdev->mesh_id_len)
|
|
return -ENOTCONN;
|
|
break;
|
|
default:
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
memset(¶ms, 0, sizeof(params));
|
|
|
|
if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
|
|
!info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
|
|
return -EINVAL;
|
|
|
|
/* only important for AP, IBSS and mesh create IEs internally */
|
|
if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
|
|
return -EINVAL;
|
|
|
|
/* Even though the attribute is u32, the specification says
|
|
* u8, so let's make sure we don't overflow.
|
|
*/
|
|
cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
|
|
if (cs_count > 255)
|
|
return -EINVAL;
|
|
|
|
params.count = cs_count;
|
|
|
|
if (!need_new_beacon)
|
|
goto skip_beacons;
|
|
|
|
err = nl80211_parse_beacon(info->attrs, ¶ms.beacon_after);
|
|
if (err)
|
|
return err;
|
|
|
|
err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
|
|
info->attrs[NL80211_ATTR_CSA_IES],
|
|
nl80211_policy, info->extack);
|
|
if (err)
|
|
return err;
|
|
|
|
err = nl80211_parse_beacon(csa_attrs, ¶ms.beacon_csa);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
|
|
return -EINVAL;
|
|
|
|
len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
|
|
if (!len || (len % sizeof(u16)))
|
|
return -EINVAL;
|
|
|
|
params.n_counter_offsets_beacon = len / sizeof(u16);
|
|
if (rdev->wiphy.max_num_csa_counters &&
|
|
(params.n_counter_offsets_beacon >
|
|
rdev->wiphy.max_num_csa_counters))
|
|
return -EINVAL;
|
|
|
|
params.counter_offsets_beacon =
|
|
nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
|
|
|
|
/* sanity checks - counters should fit and be the same */
|
|
for (i = 0; i < params.n_counter_offsets_beacon; i++) {
|
|
u16 offset = params.counter_offsets_beacon[i];
|
|
|
|
if (offset >= params.beacon_csa.tail_len)
|
|
return -EINVAL;
|
|
|
|
if (params.beacon_csa.tail[offset] != params.count)
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
|
|
len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
|
|
if (!len || (len % sizeof(u16)))
|
|
return -EINVAL;
|
|
|
|
params.n_counter_offsets_presp = len / sizeof(u16);
|
|
if (rdev->wiphy.max_num_csa_counters &&
|
|
(params.n_counter_offsets_presp >
|
|
rdev->wiphy.max_num_csa_counters))
|
|
return -EINVAL;
|
|
|
|
params.counter_offsets_presp =
|
|
nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
|
|
|
|
/* sanity checks - counters should fit and be the same */
|
|
for (i = 0; i < params.n_counter_offsets_presp; i++) {
|
|
u16 offset = params.counter_offsets_presp[i];
|
|
|
|
if (offset >= params.beacon_csa.probe_resp_len)
|
|
return -EINVAL;
|
|
|
|
if (params.beacon_csa.probe_resp[offset] !=
|
|
params.count)
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
skip_beacons:
|
|
err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
|
|
wdev->iftype))
|
|
return -EINVAL;
|
|
|
|
err = cfg80211_chandef_dfs_required(wdev->wiphy,
|
|
¶ms.chandef,
|
|
wdev->iftype);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
if (err > 0) {
|
|
params.radar_required = true;
|
|
if (need_handle_dfs_flag &&
|
|
!nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS])) {
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
|
|
params.block_tx = true;
|
|
|
|
wdev_lock(wdev);
|
|
err = rdev_channel_switch(rdev, dev, ¶ms);
|
|
wdev_unlock(wdev);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
|
|
u32 seq, int flags,
|
|
struct cfg80211_registered_device *rdev,
|
|
struct wireless_dev *wdev,
|
|
struct cfg80211_internal_bss *intbss)
|
|
{
|
|
struct cfg80211_bss *res = &intbss->pub;
|
|
const struct cfg80211_bss_ies *ies;
|
|
void *hdr;
|
|
struct nlattr *bss;
|
|
|
|
ASSERT_WDEV_LOCK(wdev);
|
|
|
|
hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
|
|
NL80211_CMD_NEW_SCAN_RESULTS);
|
|
if (!hdr)
|
|
return -1;
|
|
|
|
genl_dump_check_consistent(cb, hdr);
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
|
|
goto nla_put_failure;
|
|
if (wdev->netdev &&
|
|
nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
|
|
goto nla_put_failure;
|
|
if (nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
|
|
NL80211_ATTR_PAD))
|
|
goto nla_put_failure;
|
|
|
|
bss = nla_nest_start(msg, NL80211_ATTR_BSS);
|
|
if (!bss)
|
|
goto nla_put_failure;
|
|
if ((!is_zero_ether_addr(res->bssid) &&
|
|
nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
|
|
goto nla_put_failure;
|
|
|
|
rcu_read_lock();
|
|
/* indicate whether we have probe response data or not */
|
|
if (rcu_access_pointer(res->proberesp_ies) &&
|
|
nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
|
|
goto fail_unlock_rcu;
|
|
|
|
/* this pointer prefers to be pointed to probe response data
|
|
* but is always valid
|
|
*/
|
|
ies = rcu_dereference(res->ies);
|
|
if (ies) {
|
|
if (nla_put_u64_64bit(msg, NL80211_BSS_TSF, ies->tsf,
|
|
NL80211_BSS_PAD))
|
|
goto fail_unlock_rcu;
|
|
if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
|
|
ies->len, ies->data))
|
|
goto fail_unlock_rcu;
|
|
}
|
|
|
|
/* and this pointer is always (unless driver didn't know) beacon data */
|
|
ies = rcu_dereference(res->beacon_ies);
|
|
if (ies && ies->from_beacon) {
|
|
if (nla_put_u64_64bit(msg, NL80211_BSS_BEACON_TSF, ies->tsf,
|
|
NL80211_BSS_PAD))
|
|
goto fail_unlock_rcu;
|
|
if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
|
|
ies->len, ies->data))
|
|
goto fail_unlock_rcu;
|
|
}
|
|
rcu_read_unlock();
|
|
|
|
if (res->beacon_interval &&
|
|
nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
|
|
goto nla_put_failure;
|
|
if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
|
|
nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
|
|
nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
|
|
nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
|
|
jiffies_to_msecs(jiffies - intbss->ts)))
|
|
goto nla_put_failure;
|
|
|
|
if (intbss->parent_tsf &&
|
|
(nla_put_u64_64bit(msg, NL80211_BSS_PARENT_TSF,
|
|
intbss->parent_tsf, NL80211_BSS_PAD) ||
|
|
nla_put(msg, NL80211_BSS_PARENT_BSSID, ETH_ALEN,
|
|
intbss->parent_bssid)))
|
|
goto nla_put_failure;
|
|
|
|
if (intbss->ts_boottime &&
|
|
nla_put_u64_64bit(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
|
|
intbss->ts_boottime, NL80211_BSS_PAD))
|
|
goto nla_put_failure;
|
|
|
|
if (!nl80211_put_signal(msg, intbss->pub.chains,
|
|
intbss->pub.chain_signal,
|
|
NL80211_BSS_CHAIN_SIGNAL))
|
|
goto nla_put_failure;
|
|
|
|
switch (rdev->wiphy.signal_type) {
|
|
case CFG80211_SIGNAL_TYPE_MBM:
|
|
if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
|
|
goto nla_put_failure;
|
|
break;
|
|
case CFG80211_SIGNAL_TYPE_UNSPEC:
|
|
if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
|
|
goto nla_put_failure;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
switch (wdev->iftype) {
|
|
case NL80211_IFTYPE_P2P_CLIENT:
|
|
case NL80211_IFTYPE_STATION:
|
|
if (intbss == wdev->current_bss &&
|
|
nla_put_u32(msg, NL80211_BSS_STATUS,
|
|
NL80211_BSS_STATUS_ASSOCIATED))
|
|
goto nla_put_failure;
|
|
break;
|
|
case NL80211_IFTYPE_ADHOC:
|
|
if (intbss == wdev->current_bss &&
|
|
nla_put_u32(msg, NL80211_BSS_STATUS,
|
|
NL80211_BSS_STATUS_IBSS_JOINED))
|
|
goto nla_put_failure;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
nla_nest_end(msg, bss);
|
|
|
|
genlmsg_end(msg, hdr);
|
|
return 0;
|
|
|
|
fail_unlock_rcu:
|
|
rcu_read_unlock();
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
|
|
{
|
|
struct cfg80211_registered_device *rdev;
|
|
struct cfg80211_internal_bss *scan;
|
|
struct wireless_dev *wdev;
|
|
int start = cb->args[2], idx = 0;
|
|
int err;
|
|
|
|
rtnl_lock();
|
|
err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
|
|
if (err) {
|
|
rtnl_unlock();
|
|
return err;
|
|
}
|
|
|
|
wdev_lock(wdev);
|
|
spin_lock_bh(&rdev->bss_lock);
|
|
cfg80211_bss_expire(rdev);
|
|
|
|
cb->seq = rdev->bss_generation;
|
|
|
|
list_for_each_entry(scan, &rdev->bss_list, list) {
|
|
if (++idx <= start)
|
|
continue;
|
|
if (nl80211_send_bss(skb, cb,
|
|
cb->nlh->nlmsg_seq, NLM_F_MULTI,
|
|
rdev, wdev, scan) < 0) {
|
|
idx--;
|
|
break;
|
|
}
|
|
}
|
|
|
|
spin_unlock_bh(&rdev->bss_lock);
|
|
wdev_unlock(wdev);
|
|
|
|
cb->args[2] = idx;
|
|
rtnl_unlock();
|
|
|
|
return skb->len;
|
|
}
|
|
|
|
static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
|
|
int flags, struct net_device *dev,
|
|
bool allow_radio_stats,
|
|
struct survey_info *survey)
|
|
{
|
|
void *hdr;
|
|
struct nlattr *infoattr;
|
|
|
|
/* skip radio stats if userspace didn't request them */
|
|
if (!survey->channel && !allow_radio_stats)
|
|
return 0;
|
|
|
|
hdr = nl80211hdr_put(msg, portid, seq, flags,
|
|
NL80211_CMD_NEW_SURVEY_RESULTS);
|
|
if (!hdr)
|
|
return -ENOMEM;
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
|
|
goto nla_put_failure;
|
|
|
|
infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
|
|
if (!infoattr)
|
|
goto nla_put_failure;
|
|
|
|
if (survey->channel &&
|
|
nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
|
|
survey->channel->center_freq))
|
|
goto nla_put_failure;
|
|
|
|
if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
|
|
nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
|
|
goto nla_put_failure;
|
|
if ((survey->filled & SURVEY_INFO_IN_USE) &&
|
|
nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
|
|
goto nla_put_failure;
|
|
if ((survey->filled & SURVEY_INFO_TIME) &&
|
|
nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME,
|
|
survey->time, NL80211_SURVEY_INFO_PAD))
|
|
goto nla_put_failure;
|
|
if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
|
|
nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_BUSY,
|
|
survey->time_busy, NL80211_SURVEY_INFO_PAD))
|
|
goto nla_put_failure;
|
|
if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
|
|
nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
|
|
survey->time_ext_busy, NL80211_SURVEY_INFO_PAD))
|
|
goto nla_put_failure;
|
|
if ((survey->filled & SURVEY_INFO_TIME_RX) &&
|
|
nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_RX,
|
|
survey->time_rx, NL80211_SURVEY_INFO_PAD))
|
|
goto nla_put_failure;
|
|
if ((survey->filled & SURVEY_INFO_TIME_TX) &&
|
|
nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_TX,
|
|
survey->time_tx, NL80211_SURVEY_INFO_PAD))
|
|
goto nla_put_failure;
|
|
if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
|
|
nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_SCAN,
|
|
survey->time_scan, NL80211_SURVEY_INFO_PAD))
|
|
goto nla_put_failure;
|
|
|
|
nla_nest_end(msg, infoattr);
|
|
|
|
genlmsg_end(msg, hdr);
|
|
return 0;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
|
|
{
|
|
struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
|
|
struct survey_info survey;
|
|
struct cfg80211_registered_device *rdev;
|
|
struct wireless_dev *wdev;
|
|
int survey_idx = cb->args[2];
|
|
int res;
|
|
bool radio_stats;
|
|
|
|
rtnl_lock();
|
|
res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
|
|
if (res)
|
|
goto out_err;
|
|
|
|
/* prepare_wdev_dump parsed the attributes */
|
|
radio_stats = attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
|
|
|
|
if (!wdev->netdev) {
|
|
res = -EINVAL;
|
|
goto out_err;
|
|
}
|
|
|
|
if (!rdev->ops->dump_survey) {
|
|
res = -EOPNOTSUPP;
|
|
goto out_err;
|
|
}
|
|
|
|
while (1) {
|
|
res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
|
|
if (res == -ENOENT)
|
|
break;
|
|
if (res)
|
|
goto out_err;
|
|
|
|
/* don't send disabled channels, but do send non-channel data */
|
|
if (survey.channel &&
|
|
survey.channel->flags & IEEE80211_CHAN_DISABLED) {
|
|
survey_idx++;
|
|
continue;
|
|
}
|
|
|
|
if (nl80211_send_survey(skb,
|
|
NETLINK_CB(cb->skb).portid,
|
|
cb->nlh->nlmsg_seq, NLM_F_MULTI,
|
|
wdev->netdev, radio_stats, &survey) < 0)
|
|
goto out;
|
|
survey_idx++;
|
|
}
|
|
|
|
out:
|
|
cb->args[2] = survey_idx;
|
|
res = skb->len;
|
|
out_err:
|
|
rtnl_unlock();
|
|
return res;
|
|
}
|
|
|
|
static bool nl80211_valid_wpa_versions(u32 wpa_versions)
|
|
{
|
|
return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
|
|
NL80211_WPA_VERSION_2));
|
|
}
|
|
|
|
static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct ieee80211_channel *chan;
|
|
const u8 *bssid, *ssid, *ie = NULL, *auth_data = NULL;
|
|
int err, ssid_len, ie_len = 0, auth_data_len = 0;
|
|
enum nl80211_auth_type auth_type;
|
|
struct key_parse key;
|
|
bool local_state_change;
|
|
|
|
if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
|
|
return -EINVAL;
|
|
|
|
if (!info->attrs[NL80211_ATTR_MAC])
|
|
return -EINVAL;
|
|
|
|
if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
|
|
return -EINVAL;
|
|
|
|
if (!info->attrs[NL80211_ATTR_SSID])
|
|
return -EINVAL;
|
|
|
|
if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
|
|
return -EINVAL;
|
|
|
|
err = nl80211_parse_key(info, &key);
|
|
if (err)
|
|
return err;
|
|
|
|
if (key.idx >= 0) {
|
|
if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
|
|
return -EINVAL;
|
|
if (!key.p.key || !key.p.key_len)
|
|
return -EINVAL;
|
|
if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
|
|
key.p.key_len != WLAN_KEY_LEN_WEP40) &&
|
|
(key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
|
|
key.p.key_len != WLAN_KEY_LEN_WEP104))
|
|
return -EINVAL;
|
|
if (key.idx > 3)
|
|
return -EINVAL;
|
|
} else {
|
|
key.p.key_len = 0;
|
|
key.p.key = NULL;
|
|
}
|
|
|
|
if (key.idx >= 0) {
|
|
int i;
|
|
bool ok = false;
|
|
|
|
for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
|
|
if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
|
|
ok = true;
|
|
break;
|
|
}
|
|
}
|
|
if (!ok)
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!rdev->ops->auth)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
|
|
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
|
|
return -EOPNOTSUPP;
|
|
|
|
bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
chan = nl80211_get_valid_chan(&rdev->wiphy,
|
|
info->attrs[NL80211_ATTR_WIPHY_FREQ]);
|
|
if (!chan)
|
|
return -EINVAL;
|
|
|
|
ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
|
|
ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
|
|
|
|
if (info->attrs[NL80211_ATTR_IE]) {
|
|
ie = nla_data(info->attrs[NL80211_ATTR_IE]);
|
|
ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
|
|
}
|
|
|
|
auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
|
|
if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
|
|
return -EINVAL;
|
|
|
|
if ((auth_type == NL80211_AUTHTYPE_SAE ||
|
|
auth_type == NL80211_AUTHTYPE_FILS_SK ||
|
|
auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
|
|
auth_type == NL80211_AUTHTYPE_FILS_PK) &&
|
|
!info->attrs[NL80211_ATTR_AUTH_DATA])
|
|
return -EINVAL;
|
|
|
|
if (info->attrs[NL80211_ATTR_AUTH_DATA]) {
|
|
if (auth_type != NL80211_AUTHTYPE_SAE &&
|
|
auth_type != NL80211_AUTHTYPE_FILS_SK &&
|
|
auth_type != NL80211_AUTHTYPE_FILS_SK_PFS &&
|
|
auth_type != NL80211_AUTHTYPE_FILS_PK)
|
|
return -EINVAL;
|
|
auth_data = nla_data(info->attrs[NL80211_ATTR_AUTH_DATA]);
|
|
auth_data_len = nla_len(info->attrs[NL80211_ATTR_AUTH_DATA]);
|
|
/* need to include at least Auth Transaction and Status Code */
|
|
if (auth_data_len < 4)
|
|
return -EINVAL;
|
|
}
|
|
|
|
local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
|
|
|
|
/*
|
|
* Since we no longer track auth state, ignore
|
|
* requests to only change local state.
|
|
*/
|
|
if (local_state_change)
|
|
return 0;
|
|
|
|
wdev_lock(dev->ieee80211_ptr);
|
|
err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
|
|
ssid, ssid_len, ie, ie_len,
|
|
key.p.key, key.p.key_len, key.idx,
|
|
auth_data, auth_data_len);
|
|
wdev_unlock(dev->ieee80211_ptr);
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
|
|
struct genl_info *info,
|
|
struct cfg80211_crypto_settings *settings,
|
|
int cipher_limit)
|
|
{
|
|
memset(settings, 0, sizeof(*settings));
|
|
|
|
settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
|
|
|
|
if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
|
|
u16 proto;
|
|
|
|
proto = nla_get_u16(
|
|
info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
|
|
settings->control_port_ethertype = cpu_to_be16(proto);
|
|
if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
|
|
proto != ETH_P_PAE)
|
|
return -EINVAL;
|
|
if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
|
|
settings->control_port_no_encrypt = true;
|
|
} else
|
|
settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
|
|
|
|
if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
|
|
void *data;
|
|
int len, i;
|
|
|
|
data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
|
|
len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
|
|
settings->n_ciphers_pairwise = len / sizeof(u32);
|
|
|
|
if (len % sizeof(u32))
|
|
return -EINVAL;
|
|
|
|
if (settings->n_ciphers_pairwise > cipher_limit)
|
|
return -EINVAL;
|
|
|
|
memcpy(settings->ciphers_pairwise, data, len);
|
|
|
|
for (i = 0; i < settings->n_ciphers_pairwise; i++)
|
|
if (!cfg80211_supported_cipher_suite(
|
|
&rdev->wiphy,
|
|
settings->ciphers_pairwise[i]))
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
|
|
settings->cipher_group =
|
|
nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
|
|
if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
|
|
settings->cipher_group))
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
|
|
settings->wpa_versions =
|
|
nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
|
|
if (!nl80211_valid_wpa_versions(settings->wpa_versions))
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
|
|
void *data;
|
|
int len;
|
|
|
|
data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
|
|
len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
|
|
settings->n_akm_suites = len / sizeof(u32);
|
|
|
|
if (len % sizeof(u32))
|
|
return -EINVAL;
|
|
|
|
if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
|
|
return -EINVAL;
|
|
|
|
memcpy(settings->akm_suites, data, len);
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_PMK]) {
|
|
if (nla_len(info->attrs[NL80211_ATTR_PMK]) != WLAN_PMK_LEN)
|
|
return -EINVAL;
|
|
if (!wiphy_ext_feature_isset(&rdev->wiphy,
|
|
NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_PSK))
|
|
return -EINVAL;
|
|
settings->psk = nla_data(info->attrs[NL80211_ATTR_PMK]);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct ieee80211_channel *chan;
|
|
struct cfg80211_assoc_request req = {};
|
|
const u8 *bssid, *ssid;
|
|
int err, ssid_len = 0;
|
|
|
|
if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
|
|
return -EINVAL;
|
|
|
|
if (!info->attrs[NL80211_ATTR_MAC] ||
|
|
!info->attrs[NL80211_ATTR_SSID] ||
|
|
!info->attrs[NL80211_ATTR_WIPHY_FREQ])
|
|
return -EINVAL;
|
|
|
|
if (!rdev->ops->assoc)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
|
|
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
|
|
return -EOPNOTSUPP;
|
|
|
|
bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
|
|
chan = nl80211_get_valid_chan(&rdev->wiphy,
|
|
info->attrs[NL80211_ATTR_WIPHY_FREQ]);
|
|
if (!chan)
|
|
return -EINVAL;
|
|
|
|
ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
|
|
ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
|
|
|
|
if (info->attrs[NL80211_ATTR_IE]) {
|
|
req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
|
|
req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_USE_MFP]) {
|
|
enum nl80211_mfp mfp =
|
|
nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
|
|
if (mfp == NL80211_MFP_REQUIRED)
|
|
req.use_mfp = true;
|
|
else if (mfp != NL80211_MFP_NO)
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_PREV_BSSID])
|
|
req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
|
|
|
|
if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
|
|
req.flags |= ASSOC_REQ_DISABLE_HT;
|
|
|
|
if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
|
|
memcpy(&req.ht_capa_mask,
|
|
nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
|
|
sizeof(req.ht_capa_mask));
|
|
|
|
if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
|
|
if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
|
|
return -EINVAL;
|
|
memcpy(&req.ht_capa,
|
|
nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
|
|
sizeof(req.ht_capa));
|
|
}
|
|
|
|
if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
|
|
req.flags |= ASSOC_REQ_DISABLE_VHT;
|
|
|
|
if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
|
|
memcpy(&req.vht_capa_mask,
|
|
nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
|
|
sizeof(req.vht_capa_mask));
|
|
|
|
if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
|
|
if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
|
|
return -EINVAL;
|
|
memcpy(&req.vht_capa,
|
|
nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
|
|
sizeof(req.vht_capa));
|
|
}
|
|
|
|
if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
|
|
if (!((rdev->wiphy.features &
|
|
NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
|
|
(rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
|
|
!wiphy_ext_feature_isset(&rdev->wiphy,
|
|
NL80211_EXT_FEATURE_RRM))
|
|
return -EINVAL;
|
|
req.flags |= ASSOC_REQ_USE_RRM;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_FILS_KEK]) {
|
|
req.fils_kek = nla_data(info->attrs[NL80211_ATTR_FILS_KEK]);
|
|
req.fils_kek_len = nla_len(info->attrs[NL80211_ATTR_FILS_KEK]);
|
|
if (!info->attrs[NL80211_ATTR_FILS_NONCES])
|
|
return -EINVAL;
|
|
req.fils_nonces =
|
|
nla_data(info->attrs[NL80211_ATTR_FILS_NONCES]);
|
|
}
|
|
|
|
err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
|
|
if (!err) {
|
|
wdev_lock(dev->ieee80211_ptr);
|
|
|
|
err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
|
|
ssid, ssid_len, &req);
|
|
|
|
if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
|
|
dev->ieee80211_ptr->conn_owner_nlportid =
|
|
info->snd_portid;
|
|
memcpy(dev->ieee80211_ptr->disconnect_bssid,
|
|
bssid, ETH_ALEN);
|
|
}
|
|
|
|
wdev_unlock(dev->ieee80211_ptr);
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
const u8 *ie = NULL, *bssid;
|
|
int ie_len = 0, err;
|
|
u16 reason_code;
|
|
bool local_state_change;
|
|
|
|
if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
|
|
return -EINVAL;
|
|
|
|
if (!info->attrs[NL80211_ATTR_MAC])
|
|
return -EINVAL;
|
|
|
|
if (!info->attrs[NL80211_ATTR_REASON_CODE])
|
|
return -EINVAL;
|
|
|
|
if (!rdev->ops->deauth)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
|
|
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
|
|
return -EOPNOTSUPP;
|
|
|
|
bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
|
|
reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
|
|
if (reason_code == 0) {
|
|
/* Reason Code 0 is reserved */
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_IE]) {
|
|
ie = nla_data(info->attrs[NL80211_ATTR_IE]);
|
|
ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
|
|
}
|
|
|
|
local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
|
|
|
|
wdev_lock(dev->ieee80211_ptr);
|
|
err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
|
|
local_state_change);
|
|
wdev_unlock(dev->ieee80211_ptr);
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
const u8 *ie = NULL, *bssid;
|
|
int ie_len = 0, err;
|
|
u16 reason_code;
|
|
bool local_state_change;
|
|
|
|
if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
|
|
return -EINVAL;
|
|
|
|
if (!info->attrs[NL80211_ATTR_MAC])
|
|
return -EINVAL;
|
|
|
|
if (!info->attrs[NL80211_ATTR_REASON_CODE])
|
|
return -EINVAL;
|
|
|
|
if (!rdev->ops->disassoc)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
|
|
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
|
|
return -EOPNOTSUPP;
|
|
|
|
bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
|
|
reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
|
|
if (reason_code == 0) {
|
|
/* Reason Code 0 is reserved */
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_IE]) {
|
|
ie = nla_data(info->attrs[NL80211_ATTR_IE]);
|
|
ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
|
|
}
|
|
|
|
local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
|
|
|
|
wdev_lock(dev->ieee80211_ptr);
|
|
err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
|
|
local_state_change);
|
|
wdev_unlock(dev->ieee80211_ptr);
|
|
return err;
|
|
}
|
|
|
|
static bool
|
|
nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
|
|
int mcast_rate[NUM_NL80211_BANDS],
|
|
int rateval)
|
|
{
|
|
struct wiphy *wiphy = &rdev->wiphy;
|
|
bool found = false;
|
|
int band, i;
|
|
|
|
for (band = 0; band < NUM_NL80211_BANDS; band++) {
|
|
struct ieee80211_supported_band *sband;
|
|
|
|
sband = wiphy->bands[band];
|
|
if (!sband)
|
|
continue;
|
|
|
|
for (i = 0; i < sband->n_bitrates; i++) {
|
|
if (sband->bitrates[i].bitrate == rateval) {
|
|
mcast_rate[band] = i + 1;
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return found;
|
|
}
|
|
|
|
static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct cfg80211_ibss_params ibss;
|
|
struct wiphy *wiphy;
|
|
struct cfg80211_cached_keys *connkeys = NULL;
|
|
int err;
|
|
|
|
memset(&ibss, 0, sizeof(ibss));
|
|
|
|
if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
|
|
return -EINVAL;
|
|
|
|
if (!info->attrs[NL80211_ATTR_SSID] ||
|
|
!nla_len(info->attrs[NL80211_ATTR_SSID]))
|
|
return -EINVAL;
|
|
|
|
ibss.beacon_interval = 100;
|
|
|
|
if (info->attrs[NL80211_ATTR_BEACON_INTERVAL])
|
|
ibss.beacon_interval =
|
|
nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
|
|
|
|
err = cfg80211_validate_beacon_int(rdev, NL80211_IFTYPE_ADHOC,
|
|
ibss.beacon_interval);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!rdev->ops->join_ibss)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
|
|
return -EOPNOTSUPP;
|
|
|
|
wiphy = &rdev->wiphy;
|
|
|
|
if (info->attrs[NL80211_ATTR_MAC]) {
|
|
ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
|
|
if (!is_valid_ether_addr(ibss.bssid))
|
|
return -EINVAL;
|
|
}
|
|
ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
|
|
ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
|
|
|
|
if (info->attrs[NL80211_ATTR_IE]) {
|
|
ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
|
|
ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
|
|
}
|
|
|
|
err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
|
|
NL80211_IFTYPE_ADHOC))
|
|
return -EINVAL;
|
|
|
|
switch (ibss.chandef.width) {
|
|
case NL80211_CHAN_WIDTH_5:
|
|
case NL80211_CHAN_WIDTH_10:
|
|
case NL80211_CHAN_WIDTH_20_NOHT:
|
|
break;
|
|
case NL80211_CHAN_WIDTH_20:
|
|
case NL80211_CHAN_WIDTH_40:
|
|
if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
|
|
return -EINVAL;
|
|
break;
|
|
case NL80211_CHAN_WIDTH_80:
|
|
case NL80211_CHAN_WIDTH_80P80:
|
|
case NL80211_CHAN_WIDTH_160:
|
|
if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
|
|
return -EINVAL;
|
|
if (!wiphy_ext_feature_isset(&rdev->wiphy,
|
|
NL80211_EXT_FEATURE_VHT_IBSS))
|
|
return -EINVAL;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
|
|
ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
|
|
|
|
if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
|
|
u8 *rates =
|
|
nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
|
|
int n_rates =
|
|
nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
|
|
struct ieee80211_supported_band *sband =
|
|
wiphy->bands[ibss.chandef.chan->band];
|
|
|
|
err = ieee80211_get_ratemask(sband, rates, n_rates,
|
|
&ibss.basic_rates);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
|
|
memcpy(&ibss.ht_capa_mask,
|
|
nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
|
|
sizeof(ibss.ht_capa_mask));
|
|
|
|
if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
|
|
if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
|
|
return -EINVAL;
|
|
memcpy(&ibss.ht_capa,
|
|
nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
|
|
sizeof(ibss.ht_capa));
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
|
|
!nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
|
|
nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
|
|
return -EINVAL;
|
|
|
|
if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
|
|
bool no_ht = false;
|
|
|
|
connkeys = nl80211_parse_connkeys(rdev, info, &no_ht);
|
|
if (IS_ERR(connkeys))
|
|
return PTR_ERR(connkeys);
|
|
|
|
if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
|
|
no_ht) {
|
|
kzfree(connkeys);
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
ibss.control_port =
|
|
nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
|
|
|
|
ibss.userspace_handles_dfs =
|
|
nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
|
|
|
|
err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
|
|
if (err)
|
|
kzfree(connkeys);
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
|
|
if (!rdev->ops->leave_ibss)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
|
|
return -EOPNOTSUPP;
|
|
|
|
return cfg80211_leave_ibss(rdev, dev, false);
|
|
}
|
|
|
|
static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
int mcast_rate[NUM_NL80211_BANDS];
|
|
u32 nla_rate;
|
|
int err;
|
|
|
|
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
|
|
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
|
|
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!rdev->ops->set_mcast_rate)
|
|
return -EOPNOTSUPP;
|
|
|
|
memset(mcast_rate, 0, sizeof(mcast_rate));
|
|
|
|
if (!info->attrs[NL80211_ATTR_MCAST_RATE])
|
|
return -EINVAL;
|
|
|
|
nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
|
|
if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
|
|
return -EINVAL;
|
|
|
|
err = rdev_set_mcast_rate(rdev, dev, mcast_rate);
|
|
|
|
return err;
|
|
}
|
|
|
|
static struct sk_buff *
|
|
__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
|
|
struct wireless_dev *wdev, int approxlen,
|
|
u32 portid, u32 seq, enum nl80211_commands cmd,
|
|
enum nl80211_attrs attr,
|
|
const struct nl80211_vendor_cmd_info *info,
|
|
gfp_t gfp)
|
|
{
|
|
struct sk_buff *skb;
|
|
void *hdr;
|
|
struct nlattr *data;
|
|
|
|
skb = nlmsg_new(approxlen + 100, gfp);
|
|
if (!skb)
|
|
return NULL;
|
|
|
|
hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
|
|
if (!hdr) {
|
|
kfree_skb(skb);
|
|
return NULL;
|
|
}
|
|
|
|
if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
|
|
goto nla_put_failure;
|
|
|
|
if (info) {
|
|
if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
|
|
info->vendor_id))
|
|
goto nla_put_failure;
|
|
if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
|
|
info->subcmd))
|
|
goto nla_put_failure;
|
|
}
|
|
|
|
if (wdev) {
|
|
if (nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
|
|
wdev_id(wdev), NL80211_ATTR_PAD))
|
|
goto nla_put_failure;
|
|
if (wdev->netdev &&
|
|
nla_put_u32(skb, NL80211_ATTR_IFINDEX,
|
|
wdev->netdev->ifindex))
|
|
goto nla_put_failure;
|
|
}
|
|
|
|
data = nla_nest_start(skb, attr);
|
|
if (!data)
|
|
goto nla_put_failure;
|
|
|
|
((void **)skb->cb)[0] = rdev;
|
|
((void **)skb->cb)[1] = hdr;
|
|
((void **)skb->cb)[2] = data;
|
|
|
|
return skb;
|
|
|
|
nla_put_failure:
|
|
kfree_skb(skb);
|
|
return NULL;
|
|
}
|
|
|
|
struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
|
|
struct wireless_dev *wdev,
|
|
enum nl80211_commands cmd,
|
|
enum nl80211_attrs attr,
|
|
int vendor_event_idx,
|
|
int approxlen, gfp_t gfp)
|
|
{
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
|
|
const struct nl80211_vendor_cmd_info *info;
|
|
|
|
switch (cmd) {
|
|
case NL80211_CMD_TESTMODE:
|
|
if (WARN_ON(vendor_event_idx != -1))
|
|
return NULL;
|
|
info = NULL;
|
|
break;
|
|
case NL80211_CMD_VENDOR:
|
|
if (WARN_ON(vendor_event_idx < 0 ||
|
|
vendor_event_idx >= wiphy->n_vendor_events))
|
|
return NULL;
|
|
info = &wiphy->vendor_events[vendor_event_idx];
|
|
break;
|
|
default:
|
|
WARN_ON(1);
|
|
return NULL;
|
|
}
|
|
|
|
return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
|
|
cmd, attr, info, gfp);
|
|
}
|
|
EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
|
|
|
|
void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
|
|
{
|
|
struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
|
|
void *hdr = ((void **)skb->cb)[1];
|
|
struct nlattr *data = ((void **)skb->cb)[2];
|
|
enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
|
|
|
|
/* clear CB data for netlink core to own from now on */
|
|
memset(skb->cb, 0, sizeof(skb->cb));
|
|
|
|
nla_nest_end(skb, data);
|
|
genlmsg_end(skb, hdr);
|
|
|
|
if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
|
|
mcgrp = NL80211_MCGRP_VENDOR;
|
|
|
|
genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
|
|
mcgrp, gfp);
|
|
}
|
|
EXPORT_SYMBOL(__cfg80211_send_event_skb);
|
|
|
|
#ifdef CONFIG_NL80211_TESTMODE
|
|
static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct wireless_dev *wdev =
|
|
__cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
|
|
int err;
|
|
|
|
if (!rdev->ops->testmode_cmd)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (IS_ERR(wdev)) {
|
|
err = PTR_ERR(wdev);
|
|
if (err != -EINVAL)
|
|
return err;
|
|
wdev = NULL;
|
|
} else if (wdev->wiphy != &rdev->wiphy) {
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!info->attrs[NL80211_ATTR_TESTDATA])
|
|
return -EINVAL;
|
|
|
|
rdev->cur_cmd_info = info;
|
|
err = rdev_testmode_cmd(rdev, wdev,
|
|
nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
|
|
nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
|
|
rdev->cur_cmd_info = NULL;
|
|
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_testmode_dump(struct sk_buff *skb,
|
|
struct netlink_callback *cb)
|
|
{
|
|
struct cfg80211_registered_device *rdev;
|
|
int err;
|
|
long phy_idx;
|
|
void *data = NULL;
|
|
int data_len = 0;
|
|
|
|
rtnl_lock();
|
|
|
|
if (cb->args[0]) {
|
|
/*
|
|
* 0 is a valid index, but not valid for args[0],
|
|
* so we need to offset by 1.
|
|
*/
|
|
phy_idx = cb->args[0] - 1;
|
|
|
|
rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
|
|
if (!rdev) {
|
|
err = -ENOENT;
|
|
goto out_err;
|
|
}
|
|
} else {
|
|
struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
|
|
|
|
err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
|
|
attrbuf, nl80211_fam.maxattr,
|
|
nl80211_policy, NULL);
|
|
if (err)
|
|
goto out_err;
|
|
|
|
rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf);
|
|
if (IS_ERR(rdev)) {
|
|
err = PTR_ERR(rdev);
|
|
goto out_err;
|
|
}
|
|
phy_idx = rdev->wiphy_idx;
|
|
|
|
if (attrbuf[NL80211_ATTR_TESTDATA])
|
|
cb->args[1] = (long)attrbuf[NL80211_ATTR_TESTDATA];
|
|
}
|
|
|
|
if (cb->args[1]) {
|
|
data = nla_data((void *)cb->args[1]);
|
|
data_len = nla_len((void *)cb->args[1]);
|
|
}
|
|
|
|
if (!rdev->ops->testmode_dump) {
|
|
err = -EOPNOTSUPP;
|
|
goto out_err;
|
|
}
|
|
|
|
while (1) {
|
|
void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
|
|
cb->nlh->nlmsg_seq, NLM_F_MULTI,
|
|
NL80211_CMD_TESTMODE);
|
|
struct nlattr *tmdata;
|
|
|
|
if (!hdr)
|
|
break;
|
|
|
|
if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
|
|
genlmsg_cancel(skb, hdr);
|
|
break;
|
|
}
|
|
|
|
tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
|
|
if (!tmdata) {
|
|
genlmsg_cancel(skb, hdr);
|
|
break;
|
|
}
|
|
err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
|
|
nla_nest_end(skb, tmdata);
|
|
|
|
if (err == -ENOBUFS || err == -ENOENT) {
|
|
genlmsg_cancel(skb, hdr);
|
|
break;
|
|
} else if (err) {
|
|
genlmsg_cancel(skb, hdr);
|
|
goto out_err;
|
|
}
|
|
|
|
genlmsg_end(skb, hdr);
|
|
}
|
|
|
|
err = skb->len;
|
|
/* see above */
|
|
cb->args[0] = phy_idx + 1;
|
|
out_err:
|
|
rtnl_unlock();
|
|
return err;
|
|
}
|
|
#endif
|
|
|
|
static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct cfg80211_connect_params connect;
|
|
struct wiphy *wiphy;
|
|
struct cfg80211_cached_keys *connkeys = NULL;
|
|
int err;
|
|
|
|
memset(&connect, 0, sizeof(connect));
|
|
|
|
if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
|
|
return -EINVAL;
|
|
|
|
if (!info->attrs[NL80211_ATTR_SSID] ||
|
|
!nla_len(info->attrs[NL80211_ATTR_SSID]))
|
|
return -EINVAL;
|
|
|
|
if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
|
|
connect.auth_type =
|
|
nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
|
|
if (!nl80211_valid_auth_type(rdev, connect.auth_type,
|
|
NL80211_CMD_CONNECT))
|
|
return -EINVAL;
|
|
} else
|
|
connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
|
|
|
|
connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
|
|
|
|
if (info->attrs[NL80211_ATTR_WANT_1X_4WAY_HS] &&
|
|
!wiphy_ext_feature_isset(&rdev->wiphy,
|
|
NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
|
|
return -EINVAL;
|
|
connect.want_1x = info->attrs[NL80211_ATTR_WANT_1X_4WAY_HS];
|
|
|
|
err = nl80211_crypto_settings(rdev, info, &connect.crypto,
|
|
NL80211_MAX_NR_CIPHER_SUITES);
|
|
if (err)
|
|
return err;
|
|
|
|
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
|
|
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
|
|
return -EOPNOTSUPP;
|
|
|
|
wiphy = &rdev->wiphy;
|
|
|
|
connect.bg_scan_period = -1;
|
|
if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
|
|
(wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
|
|
connect.bg_scan_period =
|
|
nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_MAC])
|
|
connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
else if (info->attrs[NL80211_ATTR_MAC_HINT])
|
|
connect.bssid_hint =
|
|
nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
|
|
connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
|
|
connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
|
|
|
|
if (info->attrs[NL80211_ATTR_IE]) {
|
|
connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
|
|
connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_USE_MFP]) {
|
|
connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
|
|
if (connect.mfp == NL80211_MFP_OPTIONAL &&
|
|
!wiphy_ext_feature_isset(&rdev->wiphy,
|
|
NL80211_EXT_FEATURE_MFP_OPTIONAL))
|
|
return -EOPNOTSUPP;
|
|
|
|
if (connect.mfp != NL80211_MFP_REQUIRED &&
|
|
connect.mfp != NL80211_MFP_NO &&
|
|
connect.mfp != NL80211_MFP_OPTIONAL)
|
|
return -EINVAL;
|
|
} else {
|
|
connect.mfp = NL80211_MFP_NO;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_PREV_BSSID])
|
|
connect.prev_bssid =
|
|
nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
|
|
|
|
if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
|
|
connect.channel = nl80211_get_valid_chan(
|
|
wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
|
|
if (!connect.channel)
|
|
return -EINVAL;
|
|
} else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
|
|
connect.channel_hint = nl80211_get_valid_chan(
|
|
wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
|
|
if (!connect.channel_hint)
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
|
|
connkeys = nl80211_parse_connkeys(rdev, info, NULL);
|
|
if (IS_ERR(connkeys))
|
|
return PTR_ERR(connkeys);
|
|
}
|
|
|
|
if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
|
|
connect.flags |= ASSOC_REQ_DISABLE_HT;
|
|
|
|
if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
|
|
memcpy(&connect.ht_capa_mask,
|
|
nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
|
|
sizeof(connect.ht_capa_mask));
|
|
|
|
if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
|
|
if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
|
|
kzfree(connkeys);
|
|
return -EINVAL;
|
|
}
|
|
memcpy(&connect.ht_capa,
|
|
nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
|
|
sizeof(connect.ht_capa));
|
|
}
|
|
|
|
if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
|
|
connect.flags |= ASSOC_REQ_DISABLE_VHT;
|
|
|
|
if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
|
|
memcpy(&connect.vht_capa_mask,
|
|
nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
|
|
sizeof(connect.vht_capa_mask));
|
|
|
|
if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
|
|
if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
|
|
kzfree(connkeys);
|
|
return -EINVAL;
|
|
}
|
|
memcpy(&connect.vht_capa,
|
|
nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
|
|
sizeof(connect.vht_capa));
|
|
}
|
|
|
|
if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
|
|
if (!((rdev->wiphy.features &
|
|
NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
|
|
(rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
|
|
!wiphy_ext_feature_isset(&rdev->wiphy,
|
|
NL80211_EXT_FEATURE_RRM)) {
|
|
kzfree(connkeys);
|
|
return -EINVAL;
|
|
}
|
|
connect.flags |= ASSOC_REQ_USE_RRM;
|
|
}
|
|
|
|
connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
|
|
if (connect.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ]) {
|
|
kzfree(connkeys);
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_BSS_SELECT]) {
|
|
/* bss selection makes no sense if bssid is set */
|
|
if (connect.bssid) {
|
|
kzfree(connkeys);
|
|
return -EINVAL;
|
|
}
|
|
|
|
err = parse_bss_select(info->attrs[NL80211_ATTR_BSS_SELECT],
|
|
wiphy, &connect.bss_select);
|
|
if (err) {
|
|
kzfree(connkeys);
|
|
return err;
|
|
}
|
|
}
|
|
|
|
if (wiphy_ext_feature_isset(&rdev->wiphy,
|
|
NL80211_EXT_FEATURE_FILS_SK_OFFLOAD) &&
|
|
info->attrs[NL80211_ATTR_FILS_ERP_USERNAME] &&
|
|
info->attrs[NL80211_ATTR_FILS_ERP_REALM] &&
|
|
info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] &&
|
|
info->attrs[NL80211_ATTR_FILS_ERP_RRK]) {
|
|
connect.fils_erp_username =
|
|
nla_data(info->attrs[NL80211_ATTR_FILS_ERP_USERNAME]);
|
|
connect.fils_erp_username_len =
|
|
nla_len(info->attrs[NL80211_ATTR_FILS_ERP_USERNAME]);
|
|
connect.fils_erp_realm =
|
|
nla_data(info->attrs[NL80211_ATTR_FILS_ERP_REALM]);
|
|
connect.fils_erp_realm_len =
|
|
nla_len(info->attrs[NL80211_ATTR_FILS_ERP_REALM]);
|
|
connect.fils_erp_next_seq_num =
|
|
nla_get_u16(
|
|
info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM]);
|
|
connect.fils_erp_rrk =
|
|
nla_data(info->attrs[NL80211_ATTR_FILS_ERP_RRK]);
|
|
connect.fils_erp_rrk_len =
|
|
nla_len(info->attrs[NL80211_ATTR_FILS_ERP_RRK]);
|
|
} else if (info->attrs[NL80211_ATTR_FILS_ERP_USERNAME] ||
|
|
info->attrs[NL80211_ATTR_FILS_ERP_REALM] ||
|
|
info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] ||
|
|
info->attrs[NL80211_ATTR_FILS_ERP_RRK]) {
|
|
kzfree(connkeys);
|
|
return -EINVAL;
|
|
}
|
|
|
|
wdev_lock(dev->ieee80211_ptr);
|
|
|
|
err = cfg80211_connect(rdev, dev, &connect, connkeys,
|
|
connect.prev_bssid);
|
|
if (err)
|
|
kzfree(connkeys);
|
|
|
|
if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
|
|
dev->ieee80211_ptr->conn_owner_nlportid = info->snd_portid;
|
|
if (connect.bssid)
|
|
memcpy(dev->ieee80211_ptr->disconnect_bssid,
|
|
connect.bssid, ETH_ALEN);
|
|
else
|
|
memset(dev->ieee80211_ptr->disconnect_bssid,
|
|
0, ETH_ALEN);
|
|
}
|
|
|
|
wdev_unlock(dev->ieee80211_ptr);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_update_connect_params(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct cfg80211_connect_params connect = {};
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
u32 changed = 0;
|
|
int ret;
|
|
|
|
if (!rdev->ops->update_connect_params)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (info->attrs[NL80211_ATTR_IE]) {
|
|
if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
|
|
return -EINVAL;
|
|
connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
|
|
connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
|
|
changed |= UPDATE_ASSOC_IES;
|
|
}
|
|
|
|
wdev_lock(dev->ieee80211_ptr);
|
|
if (!wdev->current_bss)
|
|
ret = -ENOLINK;
|
|
else
|
|
ret = rdev_update_connect_params(rdev, dev, &connect, changed);
|
|
wdev_unlock(dev->ieee80211_ptr);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
u16 reason;
|
|
int ret;
|
|
|
|
if (!info->attrs[NL80211_ATTR_REASON_CODE])
|
|
reason = WLAN_REASON_DEAUTH_LEAVING;
|
|
else
|
|
reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
|
|
|
|
if (reason == 0)
|
|
return -EINVAL;
|
|
|
|
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
|
|
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
|
|
return -EOPNOTSUPP;
|
|
|
|
wdev_lock(dev->ieee80211_ptr);
|
|
ret = cfg80211_disconnect(rdev, dev, reason, true);
|
|
wdev_unlock(dev->ieee80211_ptr);
|
|
return ret;
|
|
}
|
|
|
|
static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net *net;
|
|
int err;
|
|
|
|
if (info->attrs[NL80211_ATTR_PID]) {
|
|
u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
|
|
|
|
net = get_net_ns_by_pid(pid);
|
|
} else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
|
|
u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
|
|
|
|
net = get_net_ns_by_fd(fd);
|
|
} else {
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (IS_ERR(net))
|
|
return PTR_ERR(net);
|
|
|
|
err = 0;
|
|
|
|
/* check if anything to do */
|
|
if (!net_eq(wiphy_net(&rdev->wiphy), net))
|
|
err = cfg80211_switch_netns(rdev, net);
|
|
|
|
put_net(net);
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
|
|
struct cfg80211_pmksa *pmksa) = NULL;
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct cfg80211_pmksa pmksa;
|
|
|
|
memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
|
|
|
|
if (!info->attrs[NL80211_ATTR_PMKID])
|
|
return -EINVAL;
|
|
|
|
pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
|
|
|
|
if (info->attrs[NL80211_ATTR_MAC]) {
|
|
pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
} else if (info->attrs[NL80211_ATTR_SSID] &&
|
|
info->attrs[NL80211_ATTR_FILS_CACHE_ID] &&
|
|
(info->genlhdr->cmd == NL80211_CMD_DEL_PMKSA ||
|
|
info->attrs[NL80211_ATTR_PMK])) {
|
|
pmksa.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
|
|
pmksa.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
|
|
pmksa.cache_id =
|
|
nla_data(info->attrs[NL80211_ATTR_FILS_CACHE_ID]);
|
|
} else {
|
|
return -EINVAL;
|
|
}
|
|
if (info->attrs[NL80211_ATTR_PMK]) {
|
|
pmksa.pmk = nla_data(info->attrs[NL80211_ATTR_PMK]);
|
|
pmksa.pmk_len = nla_len(info->attrs[NL80211_ATTR_PMK]);
|
|
}
|
|
|
|
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
|
|
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
|
|
return -EOPNOTSUPP;
|
|
|
|
switch (info->genlhdr->cmd) {
|
|
case NL80211_CMD_SET_PMKSA:
|
|
rdev_ops = rdev->ops->set_pmksa;
|
|
break;
|
|
case NL80211_CMD_DEL_PMKSA:
|
|
rdev_ops = rdev->ops->del_pmksa;
|
|
break;
|
|
default:
|
|
WARN_ON(1);
|
|
break;
|
|
}
|
|
|
|
if (!rdev_ops)
|
|
return -EOPNOTSUPP;
|
|
|
|
return rdev_ops(&rdev->wiphy, dev, &pmksa);
|
|
}
|
|
|
|
static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
|
|
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
|
|
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!rdev->ops->flush_pmksa)
|
|
return -EOPNOTSUPP;
|
|
|
|
return rdev_flush_pmksa(rdev, dev);
|
|
}
|
|
|
|
static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
u8 action_code, dialog_token;
|
|
u32 peer_capability = 0;
|
|
u16 status_code;
|
|
u8 *peer;
|
|
bool initiator;
|
|
|
|
if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
|
|
!rdev->ops->tdls_mgmt)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
|
|
!info->attrs[NL80211_ATTR_STATUS_CODE] ||
|
|
!info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
|
|
!info->attrs[NL80211_ATTR_IE] ||
|
|
!info->attrs[NL80211_ATTR_MAC])
|
|
return -EINVAL;
|
|
|
|
peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
|
|
status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
|
|
dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
|
|
initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
|
|
if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
|
|
peer_capability =
|
|
nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
|
|
|
|
return rdev_tdls_mgmt(rdev, dev, peer, action_code,
|
|
dialog_token, status_code, peer_capability,
|
|
initiator,
|
|
nla_data(info->attrs[NL80211_ATTR_IE]),
|
|
nla_len(info->attrs[NL80211_ATTR_IE]));
|
|
}
|
|
|
|
static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
enum nl80211_tdls_operation operation;
|
|
u8 *peer;
|
|
|
|
if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
|
|
!rdev->ops->tdls_oper)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
|
|
!info->attrs[NL80211_ATTR_MAC])
|
|
return -EINVAL;
|
|
|
|
operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
|
|
peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
|
|
return rdev_tdls_oper(rdev, dev, peer, operation);
|
|
}
|
|
|
|
static int nl80211_remain_on_channel(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct wireless_dev *wdev = info->user_ptr[1];
|
|
struct cfg80211_chan_def chandef;
|
|
const struct cfg80211_chan_def *compat_chandef;
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
u64 cookie;
|
|
u32 duration;
|
|
int err;
|
|
|
|
if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
|
|
!info->attrs[NL80211_ATTR_DURATION])
|
|
return -EINVAL;
|
|
|
|
duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
|
|
|
|
if (!rdev->ops->remain_on_channel ||
|
|
!(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
|
|
return -EOPNOTSUPP;
|
|
|
|
/*
|
|
* We should be on that channel for at least a minimum amount of
|
|
* time (10ms) but no longer than the driver supports.
|
|
*/
|
|
if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
|
|
duration > rdev->wiphy.max_remain_on_channel_duration)
|
|
return -EINVAL;
|
|
|
|
err = nl80211_parse_chandef(rdev, info, &chandef);
|
|
if (err)
|
|
return err;
|
|
|
|
wdev_lock(wdev);
|
|
if (!cfg80211_off_channel_oper_allowed(wdev) &&
|
|
!cfg80211_chandef_identical(&wdev->chandef, &chandef)) {
|
|
compat_chandef = cfg80211_chandef_compatible(&wdev->chandef,
|
|
&chandef);
|
|
if (compat_chandef != &chandef) {
|
|
wdev_unlock(wdev);
|
|
return -EBUSY;
|
|
}
|
|
}
|
|
wdev_unlock(wdev);
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return -ENOMEM;
|
|
|
|
hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
|
|
NL80211_CMD_REMAIN_ON_CHANNEL);
|
|
if (!hdr) {
|
|
err = -ENOBUFS;
|
|
goto free_msg;
|
|
}
|
|
|
|
err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
|
|
duration, &cookie);
|
|
|
|
if (err)
|
|
goto free_msg;
|
|
|
|
if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
|
|
NL80211_ATTR_PAD))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
return genlmsg_reply(msg, info);
|
|
|
|
nla_put_failure:
|
|
err = -ENOBUFS;
|
|
free_msg:
|
|
nlmsg_free(msg);
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct wireless_dev *wdev = info->user_ptr[1];
|
|
u64 cookie;
|
|
|
|
if (!info->attrs[NL80211_ATTR_COOKIE])
|
|
return -EINVAL;
|
|
|
|
if (!rdev->ops->cancel_remain_on_channel)
|
|
return -EOPNOTSUPP;
|
|
|
|
cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
|
|
|
|
return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
|
|
}
|
|
|
|
static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct cfg80211_bitrate_mask mask;
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
int err;
|
|
|
|
if (!rdev->ops->set_bitrate_mask)
|
|
return -EOPNOTSUPP;
|
|
|
|
err = nl80211_parse_tx_bitrate_mask(info, &mask);
|
|
if (err)
|
|
return err;
|
|
|
|
return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
|
|
}
|
|
|
|
static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct wireless_dev *wdev = info->user_ptr[1];
|
|
u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
|
|
|
|
if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
|
|
return -EINVAL;
|
|
|
|
if (info->attrs[NL80211_ATTR_FRAME_TYPE])
|
|
frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
|
|
|
|
switch (wdev->iftype) {
|
|
case NL80211_IFTYPE_STATION:
|
|
case NL80211_IFTYPE_ADHOC:
|
|
case NL80211_IFTYPE_P2P_CLIENT:
|
|
case NL80211_IFTYPE_AP:
|
|
case NL80211_IFTYPE_AP_VLAN:
|
|
case NL80211_IFTYPE_MESH_POINT:
|
|
case NL80211_IFTYPE_P2P_GO:
|
|
case NL80211_IFTYPE_P2P_DEVICE:
|
|
break;
|
|
case NL80211_IFTYPE_NAN:
|
|
default:
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
/* not much point in registering if we can't reply */
|
|
if (!rdev->ops->mgmt_tx)
|
|
return -EOPNOTSUPP;
|
|
|
|
return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
|
|
nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
|
|
nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
|
|
}
|
|
|
|
static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct wireless_dev *wdev = info->user_ptr[1];
|
|
struct cfg80211_chan_def chandef;
|
|
int err;
|
|
void *hdr = NULL;
|
|
u64 cookie;
|
|
struct sk_buff *msg = NULL;
|
|
struct cfg80211_mgmt_tx_params params = {
|
|
.dont_wait_for_ack =
|
|
info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
|
|
};
|
|
|
|
if (!info->attrs[NL80211_ATTR_FRAME])
|
|
return -EINVAL;
|
|
|
|
if (!rdev->ops->mgmt_tx)
|
|
return -EOPNOTSUPP;
|
|
|
|
switch (wdev->iftype) {
|
|
case NL80211_IFTYPE_P2P_DEVICE:
|
|
if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
|
|
return -EINVAL;
|
|
case NL80211_IFTYPE_STATION:
|
|
case NL80211_IFTYPE_ADHOC:
|
|
case NL80211_IFTYPE_P2P_CLIENT:
|
|
case NL80211_IFTYPE_AP:
|
|
case NL80211_IFTYPE_AP_VLAN:
|
|
case NL80211_IFTYPE_MESH_POINT:
|
|
case NL80211_IFTYPE_P2P_GO:
|
|
break;
|
|
case NL80211_IFTYPE_NAN:
|
|
default:
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_DURATION]) {
|
|
if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
|
|
return -EINVAL;
|
|
params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
|
|
|
|
/*
|
|
* We should wait on the channel for at least a minimum amount
|
|
* of time (10ms) but no longer than the driver supports.
|
|
*/
|
|
if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
|
|
params.wait > rdev->wiphy.max_remain_on_channel_duration)
|
|
return -EINVAL;
|
|
}
|
|
|
|
params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
|
|
|
|
if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
|
|
return -EINVAL;
|
|
|
|
params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
|
|
|
|
/* get the channel if any has been specified, otherwise pass NULL to
|
|
* the driver. The latter will use the current one
|
|
*/
|
|
chandef.chan = NULL;
|
|
if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
|
|
err = nl80211_parse_chandef(rdev, info, &chandef);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
if (!chandef.chan && params.offchan)
|
|
return -EINVAL;
|
|
|
|
wdev_lock(wdev);
|
|
if (params.offchan && !cfg80211_off_channel_oper_allowed(wdev)) {
|
|
wdev_unlock(wdev);
|
|
return -EBUSY;
|
|
}
|
|
wdev_unlock(wdev);
|
|
|
|
params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
|
|
params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
|
|
|
|
if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
|
|
int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
|
|
int i;
|
|
|
|
if (len % sizeof(u16))
|
|
return -EINVAL;
|
|
|
|
params.n_csa_offsets = len / sizeof(u16);
|
|
params.csa_offsets =
|
|
nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
|
|
|
|
/* check that all the offsets fit the frame */
|
|
for (i = 0; i < params.n_csa_offsets; i++) {
|
|
if (params.csa_offsets[i] >= params.len)
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
if (!params.dont_wait_for_ack) {
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return -ENOMEM;
|
|
|
|
hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
|
|
NL80211_CMD_FRAME);
|
|
if (!hdr) {
|
|
err = -ENOBUFS;
|
|
goto free_msg;
|
|
}
|
|
}
|
|
|
|
params.chan = chandef.chan;
|
|
err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie);
|
|
if (err)
|
|
goto free_msg;
|
|
|
|
if (msg) {
|
|
if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
|
|
NL80211_ATTR_PAD))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
return genlmsg_reply(msg, info);
|
|
}
|
|
|
|
return 0;
|
|
|
|
nla_put_failure:
|
|
err = -ENOBUFS;
|
|
free_msg:
|
|
nlmsg_free(msg);
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct wireless_dev *wdev = info->user_ptr[1];
|
|
u64 cookie;
|
|
|
|
if (!info->attrs[NL80211_ATTR_COOKIE])
|
|
return -EINVAL;
|
|
|
|
if (!rdev->ops->mgmt_tx_cancel_wait)
|
|
return -EOPNOTSUPP;
|
|
|
|
switch (wdev->iftype) {
|
|
case NL80211_IFTYPE_STATION:
|
|
case NL80211_IFTYPE_ADHOC:
|
|
case NL80211_IFTYPE_P2P_CLIENT:
|
|
case NL80211_IFTYPE_AP:
|
|
case NL80211_IFTYPE_AP_VLAN:
|
|
case NL80211_IFTYPE_P2P_GO:
|
|
case NL80211_IFTYPE_P2P_DEVICE:
|
|
break;
|
|
case NL80211_IFTYPE_NAN:
|
|
default:
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
|
|
|
|
return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
|
|
}
|
|
|
|
static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct wireless_dev *wdev;
|
|
struct net_device *dev = info->user_ptr[1];
|
|
u8 ps_state;
|
|
bool state;
|
|
int err;
|
|
|
|
if (!info->attrs[NL80211_ATTR_PS_STATE])
|
|
return -EINVAL;
|
|
|
|
ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
|
|
|
|
if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
|
|
return -EINVAL;
|
|
|
|
wdev = dev->ieee80211_ptr;
|
|
|
|
if (!rdev->ops->set_power_mgmt)
|
|
return -EOPNOTSUPP;
|
|
|
|
state = (ps_state == NL80211_PS_ENABLED) ? true : false;
|
|
|
|
if (state == wdev->ps)
|
|
return 0;
|
|
|
|
err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
|
|
if (!err)
|
|
wdev->ps = state;
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
enum nl80211_ps_state ps_state;
|
|
struct wireless_dev *wdev;
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
int err;
|
|
|
|
wdev = dev->ieee80211_ptr;
|
|
|
|
if (!rdev->ops->set_power_mgmt)
|
|
return -EOPNOTSUPP;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return -ENOMEM;
|
|
|
|
hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
|
|
NL80211_CMD_GET_POWER_SAVE);
|
|
if (!hdr) {
|
|
err = -ENOBUFS;
|
|
goto free_msg;
|
|
}
|
|
|
|
if (wdev->ps)
|
|
ps_state = NL80211_PS_ENABLED;
|
|
else
|
|
ps_state = NL80211_PS_DISABLED;
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
return genlmsg_reply(msg, info);
|
|
|
|
nla_put_failure:
|
|
err = -ENOBUFS;
|
|
free_msg:
|
|
nlmsg_free(msg);
|
|
return err;
|
|
}
|
|
|
|
static const struct nla_policy
|
|
nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
|
|
[NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_BINARY },
|
|
[NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
|
|
[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
|
|
[NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
|
|
[NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
|
|
[NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
|
|
[NL80211_ATTR_CQM_RSSI_LEVEL] = { .type = NLA_S32 },
|
|
};
|
|
|
|
static int nl80211_set_cqm_txe(struct genl_info *info,
|
|
u32 rate, u32 pkts, u32 intvl)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
|
|
if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
|
|
return -EINVAL;
|
|
|
|
if (!rdev->ops->set_cqm_txe_config)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (wdev->iftype != NL80211_IFTYPE_STATION &&
|
|
wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
|
|
return -EOPNOTSUPP;
|
|
|
|
return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
|
|
}
|
|
|
|
static int cfg80211_cqm_rssi_update(struct cfg80211_registered_device *rdev,
|
|
struct net_device *dev)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
s32 last, low, high;
|
|
u32 hyst;
|
|
int i, n;
|
|
int err;
|
|
|
|
/* RSSI reporting disabled? */
|
|
if (!wdev->cqm_config)
|
|
return rdev_set_cqm_rssi_range_config(rdev, dev, 0, 0);
|
|
|
|
/*
|
|
* Obtain current RSSI value if possible, if not and no RSSI threshold
|
|
* event has been received yet, we should receive an event after a
|
|
* connection is established and enough beacons received to calculate
|
|
* the average.
|
|
*/
|
|
if (!wdev->cqm_config->last_rssi_event_value && wdev->current_bss &&
|
|
rdev->ops->get_station) {
|
|
struct station_info sinfo = {};
|
|
u8 *mac_addr;
|
|
|
|
mac_addr = wdev->current_bss->pub.bssid;
|
|
|
|
err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
|
|
if (err)
|
|
return err;
|
|
|
|
if (sinfo.filled & BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG))
|
|
wdev->cqm_config->last_rssi_event_value =
|
|
(s8) sinfo.rx_beacon_signal_avg;
|
|
}
|
|
|
|
last = wdev->cqm_config->last_rssi_event_value;
|
|
hyst = wdev->cqm_config->rssi_hyst;
|
|
n = wdev->cqm_config->n_rssi_thresholds;
|
|
|
|
for (i = 0; i < n; i++)
|
|
if (last < wdev->cqm_config->rssi_thresholds[i])
|
|
break;
|
|
|
|
low = i > 0 ?
|
|
(wdev->cqm_config->rssi_thresholds[i - 1] - hyst) : S32_MIN;
|
|
high = i < n ?
|
|
(wdev->cqm_config->rssi_thresholds[i] + hyst - 1) : S32_MAX;
|
|
|
|
return rdev_set_cqm_rssi_range_config(rdev, dev, low, high);
|
|
}
|
|
|
|
static int nl80211_set_cqm_rssi(struct genl_info *info,
|
|
const s32 *thresholds, int n_thresholds,
|
|
u32 hysteresis)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
int i, err;
|
|
s32 prev = S32_MIN;
|
|
|
|
/* Check all values negative and sorted */
|
|
for (i = 0; i < n_thresholds; i++) {
|
|
if (thresholds[i] > 0 || thresholds[i] <= prev)
|
|
return -EINVAL;
|
|
|
|
prev = thresholds[i];
|
|
}
|
|
|
|
if (wdev->iftype != NL80211_IFTYPE_STATION &&
|
|
wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
|
|
return -EOPNOTSUPP;
|
|
|
|
wdev_lock(wdev);
|
|
cfg80211_cqm_config_free(wdev);
|
|
wdev_unlock(wdev);
|
|
|
|
if (n_thresholds <= 1 && rdev->ops->set_cqm_rssi_config) {
|
|
if (n_thresholds == 0 || thresholds[0] == 0) /* Disabling */
|
|
return rdev_set_cqm_rssi_config(rdev, dev, 0, 0);
|
|
|
|
return rdev_set_cqm_rssi_config(rdev, dev,
|
|
thresholds[0], hysteresis);
|
|
}
|
|
|
|
if (!wiphy_ext_feature_isset(&rdev->wiphy,
|
|
NL80211_EXT_FEATURE_CQM_RSSI_LIST))
|
|
return -EOPNOTSUPP;
|
|
|
|
if (n_thresholds == 1 && thresholds[0] == 0) /* Disabling */
|
|
n_thresholds = 0;
|
|
|
|
wdev_lock(wdev);
|
|
if (n_thresholds) {
|
|
struct cfg80211_cqm_config *cqm_config;
|
|
|
|
cqm_config = kzalloc(sizeof(struct cfg80211_cqm_config) +
|
|
n_thresholds * sizeof(s32), GFP_KERNEL);
|
|
if (!cqm_config) {
|
|
err = -ENOMEM;
|
|
goto unlock;
|
|
}
|
|
|
|
cqm_config->rssi_hyst = hysteresis;
|
|
cqm_config->n_rssi_thresholds = n_thresholds;
|
|
memcpy(cqm_config->rssi_thresholds, thresholds,
|
|
n_thresholds * sizeof(s32));
|
|
|
|
wdev->cqm_config = cqm_config;
|
|
}
|
|
|
|
err = cfg80211_cqm_rssi_update(rdev, dev);
|
|
|
|
unlock:
|
|
wdev_unlock(wdev);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
|
|
struct nlattr *cqm;
|
|
int err;
|
|
|
|
cqm = info->attrs[NL80211_ATTR_CQM];
|
|
if (!cqm)
|
|
return -EINVAL;
|
|
|
|
err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
|
|
nl80211_attr_cqm_policy, info->extack);
|
|
if (err)
|
|
return err;
|
|
|
|
if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
|
|
attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
|
|
const s32 *thresholds =
|
|
nla_data(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
|
|
int len = nla_len(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
|
|
u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
|
|
|
|
if (len % 4)
|
|
return -EINVAL;
|
|
|
|
return nl80211_set_cqm_rssi(info, thresholds, len / 4,
|
|
hysteresis);
|
|
}
|
|
|
|
if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
|
|
attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
|
|
attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
|
|
u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
|
|
u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
|
|
u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
|
|
|
|
return nl80211_set_cqm_txe(info, rate, pkts, intvl);
|
|
}
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct ocb_setup setup = {};
|
|
int err;
|
|
|
|
err = nl80211_parse_chandef(rdev, info, &setup.chandef);
|
|
if (err)
|
|
return err;
|
|
|
|
return cfg80211_join_ocb(rdev, dev, &setup);
|
|
}
|
|
|
|
static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
|
|
return cfg80211_leave_ocb(rdev, dev);
|
|
}
|
|
|
|
static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct mesh_config cfg;
|
|
struct mesh_setup setup;
|
|
int err;
|
|
|
|
/* start with default */
|
|
memcpy(&cfg, &default_mesh_config, sizeof(cfg));
|
|
memcpy(&setup, &default_mesh_setup, sizeof(setup));
|
|
|
|
if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
|
|
/* and parse parameters if given */
|
|
err = nl80211_parse_mesh_config(info, &cfg, NULL);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
if (!info->attrs[NL80211_ATTR_MESH_ID] ||
|
|
!nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
|
|
return -EINVAL;
|
|
|
|
setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
|
|
setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
|
|
|
|
if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
|
|
!nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
|
|
nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
|
|
return -EINVAL;
|
|
|
|
if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
|
|
setup.beacon_interval =
|
|
nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
|
|
|
|
err = cfg80211_validate_beacon_int(rdev,
|
|
NL80211_IFTYPE_MESH_POINT,
|
|
setup.beacon_interval);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
|
|
setup.dtim_period =
|
|
nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
|
|
if (setup.dtim_period < 1 || setup.dtim_period > 100)
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
|
|
/* parse additional setup parameters if given */
|
|
err = nl80211_parse_mesh_setup(info, &setup);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
if (setup.user_mpm)
|
|
cfg.auto_open_plinks = false;
|
|
|
|
if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
|
|
err = nl80211_parse_chandef(rdev, info, &setup.chandef);
|
|
if (err)
|
|
return err;
|
|
} else {
|
|
/* cfg80211_join_mesh() will sort it out */
|
|
setup.chandef.chan = NULL;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
|
|
u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
|
|
int n_rates =
|
|
nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
|
|
struct ieee80211_supported_band *sband;
|
|
|
|
if (!setup.chandef.chan)
|
|
return -EINVAL;
|
|
|
|
sband = rdev->wiphy.bands[setup.chandef.chan->band];
|
|
|
|
err = ieee80211_get_ratemask(sband, rates, n_rates,
|
|
&setup.basic_rates);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_TX_RATES]) {
|
|
err = nl80211_parse_tx_bitrate_mask(info, &setup.beacon_rate);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!setup.chandef.chan)
|
|
return -EINVAL;
|
|
|
|
err = validate_beacon_tx_rate(rdev, setup.chandef.chan->band,
|
|
&setup.beacon_rate);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
setup.userspace_handles_dfs =
|
|
nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
|
|
|
|
return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
|
|
}
|
|
|
|
static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
|
|
return cfg80211_leave_mesh(rdev, dev);
|
|
}
|
|
|
|
#ifdef CONFIG_PM
|
|
static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
|
|
struct cfg80211_registered_device *rdev)
|
|
{
|
|
struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
|
|
struct nlattr *nl_pats, *nl_pat;
|
|
int i, pat_len;
|
|
|
|
if (!wowlan->n_patterns)
|
|
return 0;
|
|
|
|
nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
|
|
if (!nl_pats)
|
|
return -ENOBUFS;
|
|
|
|
for (i = 0; i < wowlan->n_patterns; i++) {
|
|
nl_pat = nla_nest_start(msg, i + 1);
|
|
if (!nl_pat)
|
|
return -ENOBUFS;
|
|
pat_len = wowlan->patterns[i].pattern_len;
|
|
if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
|
|
wowlan->patterns[i].mask) ||
|
|
nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
|
|
wowlan->patterns[i].pattern) ||
|
|
nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
|
|
wowlan->patterns[i].pkt_offset))
|
|
return -ENOBUFS;
|
|
nla_nest_end(msg, nl_pat);
|
|
}
|
|
nla_nest_end(msg, nl_pats);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
|
|
struct cfg80211_wowlan_tcp *tcp)
|
|
{
|
|
struct nlattr *nl_tcp;
|
|
|
|
if (!tcp)
|
|
return 0;
|
|
|
|
nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
|
|
if (!nl_tcp)
|
|
return -ENOBUFS;
|
|
|
|
if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
|
|
nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
|
|
nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
|
|
nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
|
|
nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
|
|
nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
|
|
tcp->payload_len, tcp->payload) ||
|
|
nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
|
|
tcp->data_interval) ||
|
|
nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
|
|
tcp->wake_len, tcp->wake_data) ||
|
|
nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
|
|
DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
|
|
return -ENOBUFS;
|
|
|
|
if (tcp->payload_seq.len &&
|
|
nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
|
|
sizeof(tcp->payload_seq), &tcp->payload_seq))
|
|
return -ENOBUFS;
|
|
|
|
if (tcp->payload_tok.len &&
|
|
nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
|
|
sizeof(tcp->payload_tok) + tcp->tokens_size,
|
|
&tcp->payload_tok))
|
|
return -ENOBUFS;
|
|
|
|
nla_nest_end(msg, nl_tcp);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_send_wowlan_nd(struct sk_buff *msg,
|
|
struct cfg80211_sched_scan_request *req)
|
|
{
|
|
struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
|
|
int i;
|
|
|
|
if (!req)
|
|
return 0;
|
|
|
|
nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
|
|
if (!nd)
|
|
return -ENOBUFS;
|
|
|
|
if (req->n_scan_plans == 1 &&
|
|
nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
|
|
req->scan_plans[0].interval * 1000))
|
|
return -ENOBUFS;
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
|
|
return -ENOBUFS;
|
|
|
|
if (req->relative_rssi_set) {
|
|
struct nl80211_bss_select_rssi_adjust rssi_adjust;
|
|
|
|
if (nla_put_s8(msg, NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI,
|
|
req->relative_rssi))
|
|
return -ENOBUFS;
|
|
|
|
rssi_adjust.band = req->rssi_adjust.band;
|
|
rssi_adjust.delta = req->rssi_adjust.delta;
|
|
if (nla_put(msg, NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST,
|
|
sizeof(rssi_adjust), &rssi_adjust))
|
|
return -ENOBUFS;
|
|
}
|
|
|
|
freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
|
|
if (!freqs)
|
|
return -ENOBUFS;
|
|
|
|
for (i = 0; i < req->n_channels; i++) {
|
|
if (nla_put_u32(msg, i, req->channels[i]->center_freq))
|
|
return -ENOBUFS;
|
|
}
|
|
|
|
nla_nest_end(msg, freqs);
|
|
|
|
if (req->n_match_sets) {
|
|
matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
|
|
if (!matches)
|
|
return -ENOBUFS;
|
|
|
|
for (i = 0; i < req->n_match_sets; i++) {
|
|
match = nla_nest_start(msg, i);
|
|
if (!match)
|
|
return -ENOBUFS;
|
|
|
|
if (nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
|
|
req->match_sets[i].ssid.ssid_len,
|
|
req->match_sets[i].ssid.ssid))
|
|
return -ENOBUFS;
|
|
nla_nest_end(msg, match);
|
|
}
|
|
nla_nest_end(msg, matches);
|
|
}
|
|
|
|
scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
|
|
if (!scan_plans)
|
|
return -ENOBUFS;
|
|
|
|
for (i = 0; i < req->n_scan_plans; i++) {
|
|
scan_plan = nla_nest_start(msg, i + 1);
|
|
if (!scan_plan)
|
|
return -ENOBUFS;
|
|
|
|
if (!scan_plan ||
|
|
nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
|
|
req->scan_plans[i].interval) ||
|
|
(req->scan_plans[i].iterations &&
|
|
nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
|
|
req->scan_plans[i].iterations)))
|
|
return -ENOBUFS;
|
|
nla_nest_end(msg, scan_plan);
|
|
}
|
|
nla_nest_end(msg, scan_plans);
|
|
|
|
nla_nest_end(msg, nd);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
u32 size = NLMSG_DEFAULT_SIZE;
|
|
|
|
if (!rdev->wiphy.wowlan)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
|
|
/* adjust size to have room for all the data */
|
|
size += rdev->wiphy.wowlan_config->tcp->tokens_size +
|
|
rdev->wiphy.wowlan_config->tcp->payload_len +
|
|
rdev->wiphy.wowlan_config->tcp->wake_len +
|
|
rdev->wiphy.wowlan_config->tcp->wake_len / 8;
|
|
}
|
|
|
|
msg = nlmsg_new(size, GFP_KERNEL);
|
|
if (!msg)
|
|
return -ENOMEM;
|
|
|
|
hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
|
|
NL80211_CMD_GET_WOWLAN);
|
|
if (!hdr)
|
|
goto nla_put_failure;
|
|
|
|
if (rdev->wiphy.wowlan_config) {
|
|
struct nlattr *nl_wowlan;
|
|
|
|
nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
|
|
if (!nl_wowlan)
|
|
goto nla_put_failure;
|
|
|
|
if ((rdev->wiphy.wowlan_config->any &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
|
|
(rdev->wiphy.wowlan_config->disconnect &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
|
|
(rdev->wiphy.wowlan_config->magic_pkt &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
|
|
(rdev->wiphy.wowlan_config->gtk_rekey_failure &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
|
|
(rdev->wiphy.wowlan_config->eap_identity_req &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
|
|
(rdev->wiphy.wowlan_config->four_way_handshake &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
|
|
(rdev->wiphy.wowlan_config->rfkill_release &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
|
|
goto nla_put_failure;
|
|
|
|
if (nl80211_send_wowlan_patterns(msg, rdev))
|
|
goto nla_put_failure;
|
|
|
|
if (nl80211_send_wowlan_tcp(msg,
|
|
rdev->wiphy.wowlan_config->tcp))
|
|
goto nla_put_failure;
|
|
|
|
if (nl80211_send_wowlan_nd(
|
|
msg,
|
|
rdev->wiphy.wowlan_config->nd_config))
|
|
goto nla_put_failure;
|
|
|
|
nla_nest_end(msg, nl_wowlan);
|
|
}
|
|
|
|
genlmsg_end(msg, hdr);
|
|
return genlmsg_reply(msg, info);
|
|
|
|
nla_put_failure:
|
|
nlmsg_free(msg);
|
|
return -ENOBUFS;
|
|
}
|
|
|
|
static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
|
|
struct nlattr *attr,
|
|
struct cfg80211_wowlan *trig)
|
|
{
|
|
struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
|
|
struct cfg80211_wowlan_tcp *cfg;
|
|
struct nl80211_wowlan_tcp_data_token *tok = NULL;
|
|
struct nl80211_wowlan_tcp_data_seq *seq = NULL;
|
|
u32 size;
|
|
u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
|
|
int err, port;
|
|
|
|
if (!rdev->wiphy.wowlan->tcp)
|
|
return -EINVAL;
|
|
|
|
err = nla_parse_nested(tb, MAX_NL80211_WOWLAN_TCP, attr,
|
|
nl80211_wowlan_tcp_policy, NULL);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
|
|
!tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
|
|
!tb[NL80211_WOWLAN_TCP_DST_MAC] ||
|
|
!tb[NL80211_WOWLAN_TCP_DST_PORT] ||
|
|
!tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
|
|
!tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
|
|
!tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
|
|
!tb[NL80211_WOWLAN_TCP_WAKE_MASK])
|
|
return -EINVAL;
|
|
|
|
data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
|
|
if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
|
|
return -EINVAL;
|
|
|
|
if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
|
|
rdev->wiphy.wowlan->tcp->data_interval_max ||
|
|
nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
|
|
return -EINVAL;
|
|
|
|
wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
|
|
if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
|
|
return -EINVAL;
|
|
|
|
wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
|
|
if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
|
|
return -EINVAL;
|
|
|
|
if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
|
|
u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
|
|
|
|
tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
|
|
tokens_size = tokln - sizeof(*tok);
|
|
|
|
if (!tok->len || tokens_size % tok->len)
|
|
return -EINVAL;
|
|
if (!rdev->wiphy.wowlan->tcp->tok)
|
|
return -EINVAL;
|
|
if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
|
|
return -EINVAL;
|
|
if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
|
|
return -EINVAL;
|
|
if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
|
|
return -EINVAL;
|
|
if (tok->offset + tok->len > data_size)
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
|
|
seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
|
|
if (!rdev->wiphy.wowlan->tcp->seq)
|
|
return -EINVAL;
|
|
if (seq->len == 0 || seq->len > 4)
|
|
return -EINVAL;
|
|
if (seq->len + seq->offset > data_size)
|
|
return -EINVAL;
|
|
}
|
|
|
|
size = sizeof(*cfg);
|
|
size += data_size;
|
|
size += wake_size + wake_mask_size;
|
|
size += tokens_size;
|
|
|
|
cfg = kzalloc(size, GFP_KERNEL);
|
|
if (!cfg)
|
|
return -ENOMEM;
|
|
cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
|
|
cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
|
|
memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
|
|
ETH_ALEN);
|
|
if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
|
|
port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
|
|
else
|
|
port = 0;
|
|
#ifdef CONFIG_INET
|
|
/* allocate a socket and port for it and use it */
|
|
err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
|
|
IPPROTO_TCP, &cfg->sock, 1);
|
|
if (err) {
|
|
kfree(cfg);
|
|
return err;
|
|
}
|
|
if (inet_csk_get_port(cfg->sock->sk, port)) {
|
|
sock_release(cfg->sock);
|
|
kfree(cfg);
|
|
return -EADDRINUSE;
|
|
}
|
|
cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
|
|
#else
|
|
if (!port) {
|
|
kfree(cfg);
|
|
return -EINVAL;
|
|
}
|
|
cfg->src_port = port;
|
|
#endif
|
|
|
|
cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
|
|
cfg->payload_len = data_size;
|
|
cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
|
|
memcpy((void *)cfg->payload,
|
|
nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
|
|
data_size);
|
|
if (seq)
|
|
cfg->payload_seq = *seq;
|
|
cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
|
|
cfg->wake_len = wake_size;
|
|
cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
|
|
memcpy((void *)cfg->wake_data,
|
|
nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
|
|
wake_size);
|
|
cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
|
|
data_size + wake_size;
|
|
memcpy((void *)cfg->wake_mask,
|
|
nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
|
|
wake_mask_size);
|
|
if (tok) {
|
|
cfg->tokens_size = tokens_size;
|
|
memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
|
|
}
|
|
|
|
trig->tcp = cfg;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
|
|
const struct wiphy_wowlan_support *wowlan,
|
|
struct nlattr *attr,
|
|
struct cfg80211_wowlan *trig)
|
|
{
|
|
struct nlattr **tb;
|
|
int err;
|
|
|
|
tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
|
|
if (!tb)
|
|
return -ENOMEM;
|
|
|
|
if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
|
|
err = -EOPNOTSUPP;
|
|
goto out;
|
|
}
|
|
|
|
err = nla_parse_nested(tb, NL80211_ATTR_MAX, attr, nl80211_policy,
|
|
NULL);
|
|
if (err)
|
|
goto out;
|
|
|
|
trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb,
|
|
wowlan->max_nd_match_sets);
|
|
err = PTR_ERR_OR_ZERO(trig->nd_config);
|
|
if (err)
|
|
trig->nd_config = NULL;
|
|
|
|
out:
|
|
kfree(tb);
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
|
|
struct cfg80211_wowlan new_triggers = {};
|
|
struct cfg80211_wowlan *ntrig;
|
|
const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
|
|
int err, i;
|
|
bool prev_enabled = rdev->wiphy.wowlan_config;
|
|
bool regular = false;
|
|
|
|
if (!wowlan)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
|
|
cfg80211_rdev_free_wowlan(rdev);
|
|
rdev->wiphy.wowlan_config = NULL;
|
|
goto set_wakeup;
|
|
}
|
|
|
|
err = nla_parse_nested(tb, MAX_NL80211_WOWLAN_TRIG,
|
|
info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS],
|
|
nl80211_wowlan_policy, info->extack);
|
|
if (err)
|
|
return err;
|
|
|
|
if (tb[NL80211_WOWLAN_TRIG_ANY]) {
|
|
if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
|
|
return -EINVAL;
|
|
new_triggers.any = true;
|
|
}
|
|
|
|
if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
|
|
if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
|
|
return -EINVAL;
|
|
new_triggers.disconnect = true;
|
|
regular = true;
|
|
}
|
|
|
|
if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
|
|
if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
|
|
return -EINVAL;
|
|
new_triggers.magic_pkt = true;
|
|
regular = true;
|
|
}
|
|
|
|
if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
|
|
return -EINVAL;
|
|
|
|
if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
|
|
if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
|
|
return -EINVAL;
|
|
new_triggers.gtk_rekey_failure = true;
|
|
regular = true;
|
|
}
|
|
|
|
if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
|
|
if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
|
|
return -EINVAL;
|
|
new_triggers.eap_identity_req = true;
|
|
regular = true;
|
|
}
|
|
|
|
if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
|
|
if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
|
|
return -EINVAL;
|
|
new_triggers.four_way_handshake = true;
|
|
regular = true;
|
|
}
|
|
|
|
if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
|
|
if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
|
|
return -EINVAL;
|
|
new_triggers.rfkill_release = true;
|
|
regular = true;
|
|
}
|
|
|
|
if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
|
|
struct nlattr *pat;
|
|
int n_patterns = 0;
|
|
int rem, pat_len, mask_len, pkt_offset;
|
|
struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
|
|
|
|
regular = true;
|
|
|
|
nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
|
|
rem)
|
|
n_patterns++;
|
|
if (n_patterns > wowlan->n_patterns)
|
|
return -EINVAL;
|
|
|
|
new_triggers.patterns = kcalloc(n_patterns,
|
|
sizeof(new_triggers.patterns[0]),
|
|
GFP_KERNEL);
|
|
if (!new_triggers.patterns)
|
|
return -ENOMEM;
|
|
|
|
new_triggers.n_patterns = n_patterns;
|
|
i = 0;
|
|
|
|
nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
|
|
rem) {
|
|
u8 *mask_pat;
|
|
|
|
nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat,
|
|
nl80211_packet_pattern_policy,
|
|
info->extack);
|
|
err = -EINVAL;
|
|
if (!pat_tb[NL80211_PKTPAT_MASK] ||
|
|
!pat_tb[NL80211_PKTPAT_PATTERN])
|
|
goto error;
|
|
pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
|
|
mask_len = DIV_ROUND_UP(pat_len, 8);
|
|
if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
|
|
goto error;
|
|
if (pat_len > wowlan->pattern_max_len ||
|
|
pat_len < wowlan->pattern_min_len)
|
|
goto error;
|
|
|
|
if (!pat_tb[NL80211_PKTPAT_OFFSET])
|
|
pkt_offset = 0;
|
|
else
|
|
pkt_offset = nla_get_u32(
|
|
pat_tb[NL80211_PKTPAT_OFFSET]);
|
|
if (pkt_offset > wowlan->max_pkt_offset)
|
|
goto error;
|
|
new_triggers.patterns[i].pkt_offset = pkt_offset;
|
|
|
|
mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
|
|
if (!mask_pat) {
|
|
err = -ENOMEM;
|
|
goto error;
|
|
}
|
|
new_triggers.patterns[i].mask = mask_pat;
|
|
memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
|
|
mask_len);
|
|
mask_pat += mask_len;
|
|
new_triggers.patterns[i].pattern = mask_pat;
|
|
new_triggers.patterns[i].pattern_len = pat_len;
|
|
memcpy(mask_pat,
|
|
nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
|
|
pat_len);
|
|
i++;
|
|
}
|
|
}
|
|
|
|
if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
|
|
regular = true;
|
|
err = nl80211_parse_wowlan_tcp(
|
|
rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
|
|
&new_triggers);
|
|
if (err)
|
|
goto error;
|
|
}
|
|
|
|
if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
|
|
regular = true;
|
|
err = nl80211_parse_wowlan_nd(
|
|
rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
|
|
&new_triggers);
|
|
if (err)
|
|
goto error;
|
|
}
|
|
|
|
/* The 'any' trigger means the device continues operating more or less
|
|
* as in its normal operation mode and wakes up the host on most of the
|
|
* normal interrupts (like packet RX, ...)
|
|
* It therefore makes little sense to combine with the more constrained
|
|
* wakeup trigger modes.
|
|
*/
|
|
if (new_triggers.any && regular) {
|
|
err = -EINVAL;
|
|
goto error;
|
|
}
|
|
|
|
ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
|
|
if (!ntrig) {
|
|
err = -ENOMEM;
|
|
goto error;
|
|
}
|
|
cfg80211_rdev_free_wowlan(rdev);
|
|
rdev->wiphy.wowlan_config = ntrig;
|
|
|
|
set_wakeup:
|
|
if (rdev->ops->set_wakeup &&
|
|
prev_enabled != !!rdev->wiphy.wowlan_config)
|
|
rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
|
|
|
|
return 0;
|
|
error:
|
|
for (i = 0; i < new_triggers.n_patterns; i++)
|
|
kfree(new_triggers.patterns[i].mask);
|
|
kfree(new_triggers.patterns);
|
|
if (new_triggers.tcp && new_triggers.tcp->sock)
|
|
sock_release(new_triggers.tcp->sock);
|
|
kfree(new_triggers.tcp);
|
|
kfree(new_triggers.nd_config);
|
|
return err;
|
|
}
|
|
#endif
|
|
|
|
static int nl80211_send_coalesce_rules(struct sk_buff *msg,
|
|
struct cfg80211_registered_device *rdev)
|
|
{
|
|
struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
|
|
int i, j, pat_len;
|
|
struct cfg80211_coalesce_rules *rule;
|
|
|
|
if (!rdev->coalesce->n_rules)
|
|
return 0;
|
|
|
|
nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
|
|
if (!nl_rules)
|
|
return -ENOBUFS;
|
|
|
|
for (i = 0; i < rdev->coalesce->n_rules; i++) {
|
|
nl_rule = nla_nest_start(msg, i + 1);
|
|
if (!nl_rule)
|
|
return -ENOBUFS;
|
|
|
|
rule = &rdev->coalesce->rules[i];
|
|
if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
|
|
rule->delay))
|
|
return -ENOBUFS;
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
|
|
rule->condition))
|
|
return -ENOBUFS;
|
|
|
|
nl_pats = nla_nest_start(msg,
|
|
NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
|
|
if (!nl_pats)
|
|
return -ENOBUFS;
|
|
|
|
for (j = 0; j < rule->n_patterns; j++) {
|
|
nl_pat = nla_nest_start(msg, j + 1);
|
|
if (!nl_pat)
|
|
return -ENOBUFS;
|
|
pat_len = rule->patterns[j].pattern_len;
|
|
if (nla_put(msg, NL80211_PKTPAT_MASK,
|
|
DIV_ROUND_UP(pat_len, 8),
|
|
rule->patterns[j].mask) ||
|
|
nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
|
|
rule->patterns[j].pattern) ||
|
|
nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
|
|
rule->patterns[j].pkt_offset))
|
|
return -ENOBUFS;
|
|
nla_nest_end(msg, nl_pat);
|
|
}
|
|
nla_nest_end(msg, nl_pats);
|
|
nla_nest_end(msg, nl_rule);
|
|
}
|
|
nla_nest_end(msg, nl_rules);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
|
|
if (!rdev->wiphy.coalesce)
|
|
return -EOPNOTSUPP;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return -ENOMEM;
|
|
|
|
hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
|
|
NL80211_CMD_GET_COALESCE);
|
|
if (!hdr)
|
|
goto nla_put_failure;
|
|
|
|
if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
return genlmsg_reply(msg, info);
|
|
|
|
nla_put_failure:
|
|
nlmsg_free(msg);
|
|
return -ENOBUFS;
|
|
}
|
|
|
|
void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
|
|
{
|
|
struct cfg80211_coalesce *coalesce = rdev->coalesce;
|
|
int i, j;
|
|
struct cfg80211_coalesce_rules *rule;
|
|
|
|
if (!coalesce)
|
|
return;
|
|
|
|
for (i = 0; i < coalesce->n_rules; i++) {
|
|
rule = &coalesce->rules[i];
|
|
for (j = 0; j < rule->n_patterns; j++)
|
|
kfree(rule->patterns[j].mask);
|
|
kfree(rule->patterns);
|
|
}
|
|
kfree(coalesce->rules);
|
|
kfree(coalesce);
|
|
rdev->coalesce = NULL;
|
|
}
|
|
|
|
static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
|
|
struct nlattr *rule,
|
|
struct cfg80211_coalesce_rules *new_rule)
|
|
{
|
|
int err, i;
|
|
const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
|
|
struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
|
|
int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
|
|
struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
|
|
|
|
err = nla_parse_nested(tb, NL80211_ATTR_COALESCE_RULE_MAX, rule,
|
|
nl80211_coalesce_policy, NULL);
|
|
if (err)
|
|
return err;
|
|
|
|
if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
|
|
new_rule->delay =
|
|
nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
|
|
if (new_rule->delay > coalesce->max_delay)
|
|
return -EINVAL;
|
|
|
|
if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
|
|
new_rule->condition =
|
|
nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
|
|
if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
|
|
new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
|
|
return -EINVAL;
|
|
|
|
if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
|
|
return -EINVAL;
|
|
|
|
nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
|
|
rem)
|
|
n_patterns++;
|
|
if (n_patterns > coalesce->n_patterns)
|
|
return -EINVAL;
|
|
|
|
new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
|
|
GFP_KERNEL);
|
|
if (!new_rule->patterns)
|
|
return -ENOMEM;
|
|
|
|
new_rule->n_patterns = n_patterns;
|
|
i = 0;
|
|
|
|
nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
|
|
rem) {
|
|
u8 *mask_pat;
|
|
|
|
nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat,
|
|
nl80211_packet_pattern_policy, NULL);
|
|
if (!pat_tb[NL80211_PKTPAT_MASK] ||
|
|
!pat_tb[NL80211_PKTPAT_PATTERN])
|
|
return -EINVAL;
|
|
pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
|
|
mask_len = DIV_ROUND_UP(pat_len, 8);
|
|
if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
|
|
return -EINVAL;
|
|
if (pat_len > coalesce->pattern_max_len ||
|
|
pat_len < coalesce->pattern_min_len)
|
|
return -EINVAL;
|
|
|
|
if (!pat_tb[NL80211_PKTPAT_OFFSET])
|
|
pkt_offset = 0;
|
|
else
|
|
pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
|
|
if (pkt_offset > coalesce->max_pkt_offset)
|
|
return -EINVAL;
|
|
new_rule->patterns[i].pkt_offset = pkt_offset;
|
|
|
|
mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
|
|
if (!mask_pat)
|
|
return -ENOMEM;
|
|
|
|
new_rule->patterns[i].mask = mask_pat;
|
|
memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
|
|
mask_len);
|
|
|
|
mask_pat += mask_len;
|
|
new_rule->patterns[i].pattern = mask_pat;
|
|
new_rule->patterns[i].pattern_len = pat_len;
|
|
memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
|
|
pat_len);
|
|
i++;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
|
|
struct cfg80211_coalesce new_coalesce = {};
|
|
struct cfg80211_coalesce *n_coalesce;
|
|
int err, rem_rule, n_rules = 0, i, j;
|
|
struct nlattr *rule;
|
|
struct cfg80211_coalesce_rules *tmp_rule;
|
|
|
|
if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
|
|
cfg80211_rdev_free_coalesce(rdev);
|
|
rdev_set_coalesce(rdev, NULL);
|
|
return 0;
|
|
}
|
|
|
|
nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
|
|
rem_rule)
|
|
n_rules++;
|
|
if (n_rules > coalesce->n_rules)
|
|
return -EINVAL;
|
|
|
|
new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
|
|
GFP_KERNEL);
|
|
if (!new_coalesce.rules)
|
|
return -ENOMEM;
|
|
|
|
new_coalesce.n_rules = n_rules;
|
|
i = 0;
|
|
|
|
nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
|
|
rem_rule) {
|
|
err = nl80211_parse_coalesce_rule(rdev, rule,
|
|
&new_coalesce.rules[i]);
|
|
if (err)
|
|
goto error;
|
|
|
|
i++;
|
|
}
|
|
|
|
err = rdev_set_coalesce(rdev, &new_coalesce);
|
|
if (err)
|
|
goto error;
|
|
|
|
n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
|
|
if (!n_coalesce) {
|
|
err = -ENOMEM;
|
|
goto error;
|
|
}
|
|
cfg80211_rdev_free_coalesce(rdev);
|
|
rdev->coalesce = n_coalesce;
|
|
|
|
return 0;
|
|
error:
|
|
for (i = 0; i < new_coalesce.n_rules; i++) {
|
|
tmp_rule = &new_coalesce.rules[i];
|
|
for (j = 0; j < tmp_rule->n_patterns; j++)
|
|
kfree(tmp_rule->patterns[j].mask);
|
|
kfree(tmp_rule->patterns);
|
|
}
|
|
kfree(new_coalesce.rules);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct nlattr *tb[NUM_NL80211_REKEY_DATA];
|
|
struct cfg80211_gtk_rekey_data rekey_data;
|
|
int err;
|
|
|
|
if (!info->attrs[NL80211_ATTR_REKEY_DATA])
|
|
return -EINVAL;
|
|
|
|
err = nla_parse_nested(tb, MAX_NL80211_REKEY_DATA,
|
|
info->attrs[NL80211_ATTR_REKEY_DATA],
|
|
nl80211_rekey_policy, info->extack);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!tb[NL80211_REKEY_DATA_REPLAY_CTR] || !tb[NL80211_REKEY_DATA_KEK] ||
|
|
!tb[NL80211_REKEY_DATA_KCK])
|
|
return -EINVAL;
|
|
if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
|
|
return -ERANGE;
|
|
if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
|
|
return -ERANGE;
|
|
if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
|
|
return -ERANGE;
|
|
|
|
rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
|
|
rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
|
|
rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
|
|
|
|
wdev_lock(wdev);
|
|
if (!wdev->current_bss) {
|
|
err = -ENOTCONN;
|
|
goto out;
|
|
}
|
|
|
|
if (!rdev->ops->set_rekey_data) {
|
|
err = -EOPNOTSUPP;
|
|
goto out;
|
|
}
|
|
|
|
err = rdev_set_rekey_data(rdev, dev, &rekey_data);
|
|
out:
|
|
wdev_unlock(wdev);
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_register_unexpected_frame(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
|
|
if (wdev->iftype != NL80211_IFTYPE_AP &&
|
|
wdev->iftype != NL80211_IFTYPE_P2P_GO)
|
|
return -EINVAL;
|
|
|
|
if (wdev->ap_unexpected_nlportid)
|
|
return -EBUSY;
|
|
|
|
wdev->ap_unexpected_nlportid = info->snd_portid;
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_probe_client(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
const u8 *addr;
|
|
u64 cookie;
|
|
int err;
|
|
|
|
if (wdev->iftype != NL80211_IFTYPE_AP &&
|
|
wdev->iftype != NL80211_IFTYPE_P2P_GO)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!info->attrs[NL80211_ATTR_MAC])
|
|
return -EINVAL;
|
|
|
|
if (!rdev->ops->probe_client)
|
|
return -EOPNOTSUPP;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return -ENOMEM;
|
|
|
|
hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
|
|
NL80211_CMD_PROBE_CLIENT);
|
|
if (!hdr) {
|
|
err = -ENOBUFS;
|
|
goto free_msg;
|
|
}
|
|
|
|
addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
|
|
err = rdev_probe_client(rdev, dev, addr, &cookie);
|
|
if (err)
|
|
goto free_msg;
|
|
|
|
if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
|
|
NL80211_ATTR_PAD))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
return genlmsg_reply(msg, info);
|
|
|
|
nla_put_failure:
|
|
err = -ENOBUFS;
|
|
free_msg:
|
|
nlmsg_free(msg);
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct cfg80211_beacon_registration *reg, *nreg;
|
|
int rv;
|
|
|
|
if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
|
|
return -EOPNOTSUPP;
|
|
|
|
nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
|
|
if (!nreg)
|
|
return -ENOMEM;
|
|
|
|
/* First, check if already registered. */
|
|
spin_lock_bh(&rdev->beacon_registrations_lock);
|
|
list_for_each_entry(reg, &rdev->beacon_registrations, list) {
|
|
if (reg->nlportid == info->snd_portid) {
|
|
rv = -EALREADY;
|
|
goto out_err;
|
|
}
|
|
}
|
|
/* Add it to the list */
|
|
nreg->nlportid = info->snd_portid;
|
|
list_add(&nreg->list, &rdev->beacon_registrations);
|
|
|
|
spin_unlock_bh(&rdev->beacon_registrations_lock);
|
|
|
|
return 0;
|
|
out_err:
|
|
spin_unlock_bh(&rdev->beacon_registrations_lock);
|
|
kfree(nreg);
|
|
return rv;
|
|
}
|
|
|
|
static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct wireless_dev *wdev = info->user_ptr[1];
|
|
int err;
|
|
|
|
if (!rdev->ops->start_p2p_device)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (wdev_running(wdev))
|
|
return 0;
|
|
|
|
if (rfkill_blocked(rdev->rfkill))
|
|
return -ERFKILL;
|
|
|
|
err = rdev_start_p2p_device(rdev, wdev);
|
|
if (err)
|
|
return err;
|
|
|
|
wdev->is_running = true;
|
|
rdev->opencount++;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct wireless_dev *wdev = info->user_ptr[1];
|
|
|
|
if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!rdev->ops->stop_p2p_device)
|
|
return -EOPNOTSUPP;
|
|
|
|
cfg80211_stop_p2p_device(rdev, wdev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_start_nan(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct wireless_dev *wdev = info->user_ptr[1];
|
|
struct cfg80211_nan_conf conf = {};
|
|
int err;
|
|
|
|
if (wdev->iftype != NL80211_IFTYPE_NAN)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (wdev_running(wdev))
|
|
return -EEXIST;
|
|
|
|
if (rfkill_blocked(rdev->rfkill))
|
|
return -ERFKILL;
|
|
|
|
if (!info->attrs[NL80211_ATTR_NAN_MASTER_PREF])
|
|
return -EINVAL;
|
|
|
|
conf.master_pref =
|
|
nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
|
|
if (!conf.master_pref)
|
|
return -EINVAL;
|
|
|
|
if (info->attrs[NL80211_ATTR_BANDS]) {
|
|
u32 bands = nla_get_u32(info->attrs[NL80211_ATTR_BANDS]);
|
|
|
|
if (bands & ~(u32)wdev->wiphy->nan_supported_bands)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (bands && !(bands & BIT(NL80211_BAND_2GHZ)))
|
|
return -EINVAL;
|
|
|
|
conf.bands = bands;
|
|
}
|
|
|
|
err = rdev_start_nan(rdev, wdev, &conf);
|
|
if (err)
|
|
return err;
|
|
|
|
wdev->is_running = true;
|
|
rdev->opencount++;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_stop_nan(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct wireless_dev *wdev = info->user_ptr[1];
|
|
|
|
if (wdev->iftype != NL80211_IFTYPE_NAN)
|
|
return -EOPNOTSUPP;
|
|
|
|
cfg80211_stop_nan(rdev, wdev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int validate_nan_filter(struct nlattr *filter_attr)
|
|
{
|
|
struct nlattr *attr;
|
|
int len = 0, n_entries = 0, rem;
|
|
|
|
nla_for_each_nested(attr, filter_attr, rem) {
|
|
len += nla_len(attr);
|
|
n_entries++;
|
|
}
|
|
|
|
if (len >= U8_MAX)
|
|
return -EINVAL;
|
|
|
|
return n_entries;
|
|
}
|
|
|
|
static int handle_nan_filter(struct nlattr *attr_filter,
|
|
struct cfg80211_nan_func *func,
|
|
bool tx)
|
|
{
|
|
struct nlattr *attr;
|
|
int n_entries, rem, i;
|
|
struct cfg80211_nan_func_filter *filter;
|
|
|
|
n_entries = validate_nan_filter(attr_filter);
|
|
if (n_entries < 0)
|
|
return n_entries;
|
|
|
|
BUILD_BUG_ON(sizeof(*func->rx_filters) != sizeof(*func->tx_filters));
|
|
|
|
filter = kcalloc(n_entries, sizeof(*func->rx_filters), GFP_KERNEL);
|
|
if (!filter)
|
|
return -ENOMEM;
|
|
|
|
i = 0;
|
|
nla_for_each_nested(attr, attr_filter, rem) {
|
|
filter[i].filter = nla_memdup(attr, GFP_KERNEL);
|
|
filter[i].len = nla_len(attr);
|
|
i++;
|
|
}
|
|
if (tx) {
|
|
func->num_tx_filters = n_entries;
|
|
func->tx_filters = filter;
|
|
} else {
|
|
func->num_rx_filters = n_entries;
|
|
func->rx_filters = filter;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_nan_add_func(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct wireless_dev *wdev = info->user_ptr[1];
|
|
struct nlattr *tb[NUM_NL80211_NAN_FUNC_ATTR], *func_attr;
|
|
struct cfg80211_nan_func *func;
|
|
struct sk_buff *msg = NULL;
|
|
void *hdr = NULL;
|
|
int err = 0;
|
|
|
|
if (wdev->iftype != NL80211_IFTYPE_NAN)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!wdev_running(wdev))
|
|
return -ENOTCONN;
|
|
|
|
if (!info->attrs[NL80211_ATTR_NAN_FUNC])
|
|
return -EINVAL;
|
|
|
|
err = nla_parse_nested(tb, NL80211_NAN_FUNC_ATTR_MAX,
|
|
info->attrs[NL80211_ATTR_NAN_FUNC],
|
|
nl80211_nan_func_policy, info->extack);
|
|
if (err)
|
|
return err;
|
|
|
|
func = kzalloc(sizeof(*func), GFP_KERNEL);
|
|
if (!func)
|
|
return -ENOMEM;
|
|
|
|
func->cookie = wdev->wiphy->cookie_counter++;
|
|
|
|
if (!tb[NL80211_NAN_FUNC_TYPE] ||
|
|
nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]) > NL80211_NAN_FUNC_MAX_TYPE) {
|
|
err = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
|
|
func->type = nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]);
|
|
|
|
if (!tb[NL80211_NAN_FUNC_SERVICE_ID]) {
|
|
err = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
memcpy(func->service_id, nla_data(tb[NL80211_NAN_FUNC_SERVICE_ID]),
|
|
sizeof(func->service_id));
|
|
|
|
func->close_range =
|
|
nla_get_flag(tb[NL80211_NAN_FUNC_CLOSE_RANGE]);
|
|
|
|
if (tb[NL80211_NAN_FUNC_SERVICE_INFO]) {
|
|
func->serv_spec_info_len =
|
|
nla_len(tb[NL80211_NAN_FUNC_SERVICE_INFO]);
|
|
func->serv_spec_info =
|
|
kmemdup(nla_data(tb[NL80211_NAN_FUNC_SERVICE_INFO]),
|
|
func->serv_spec_info_len,
|
|
GFP_KERNEL);
|
|
if (!func->serv_spec_info) {
|
|
err = -ENOMEM;
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
if (tb[NL80211_NAN_FUNC_TTL])
|
|
func->ttl = nla_get_u32(tb[NL80211_NAN_FUNC_TTL]);
|
|
|
|
switch (func->type) {
|
|
case NL80211_NAN_FUNC_PUBLISH:
|
|
if (!tb[NL80211_NAN_FUNC_PUBLISH_TYPE]) {
|
|
err = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
func->publish_type =
|
|
nla_get_u8(tb[NL80211_NAN_FUNC_PUBLISH_TYPE]);
|
|
func->publish_bcast =
|
|
nla_get_flag(tb[NL80211_NAN_FUNC_PUBLISH_BCAST]);
|
|
|
|
if ((!(func->publish_type & NL80211_NAN_SOLICITED_PUBLISH)) &&
|
|
func->publish_bcast) {
|
|
err = -EINVAL;
|
|
goto out;
|
|
}
|
|
break;
|
|
case NL80211_NAN_FUNC_SUBSCRIBE:
|
|
func->subscribe_active =
|
|
nla_get_flag(tb[NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE]);
|
|
break;
|
|
case NL80211_NAN_FUNC_FOLLOW_UP:
|
|
if (!tb[NL80211_NAN_FUNC_FOLLOW_UP_ID] ||
|
|
!tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID] ||
|
|
!tb[NL80211_NAN_FUNC_FOLLOW_UP_DEST]) {
|
|
err = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
func->followup_id =
|
|
nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_ID]);
|
|
func->followup_reqid =
|
|
nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID]);
|
|
memcpy(func->followup_dest.addr,
|
|
nla_data(tb[NL80211_NAN_FUNC_FOLLOW_UP_DEST]),
|
|
sizeof(func->followup_dest.addr));
|
|
if (func->ttl) {
|
|
err = -EINVAL;
|
|
goto out;
|
|
}
|
|
break;
|
|
default:
|
|
err = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
if (tb[NL80211_NAN_FUNC_SRF]) {
|
|
struct nlattr *srf_tb[NUM_NL80211_NAN_SRF_ATTR];
|
|
|
|
err = nla_parse_nested(srf_tb, NL80211_NAN_SRF_ATTR_MAX,
|
|
tb[NL80211_NAN_FUNC_SRF],
|
|
nl80211_nan_srf_policy, info->extack);
|
|
if (err)
|
|
goto out;
|
|
|
|
func->srf_include =
|
|
nla_get_flag(srf_tb[NL80211_NAN_SRF_INCLUDE]);
|
|
|
|
if (srf_tb[NL80211_NAN_SRF_BF]) {
|
|
if (srf_tb[NL80211_NAN_SRF_MAC_ADDRS] ||
|
|
!srf_tb[NL80211_NAN_SRF_BF_IDX]) {
|
|
err = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
func->srf_bf_len =
|
|
nla_len(srf_tb[NL80211_NAN_SRF_BF]);
|
|
func->srf_bf =
|
|
kmemdup(nla_data(srf_tb[NL80211_NAN_SRF_BF]),
|
|
func->srf_bf_len, GFP_KERNEL);
|
|
if (!func->srf_bf) {
|
|
err = -ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
func->srf_bf_idx =
|
|
nla_get_u8(srf_tb[NL80211_NAN_SRF_BF_IDX]);
|
|
} else {
|
|
struct nlattr *attr, *mac_attr =
|
|
srf_tb[NL80211_NAN_SRF_MAC_ADDRS];
|
|
int n_entries, rem, i = 0;
|
|
|
|
if (!mac_attr) {
|
|
err = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
n_entries = validate_acl_mac_addrs(mac_attr);
|
|
if (n_entries <= 0) {
|
|
err = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
func->srf_num_macs = n_entries;
|
|
func->srf_macs =
|
|
kzalloc(sizeof(*func->srf_macs) * n_entries,
|
|
GFP_KERNEL);
|
|
if (!func->srf_macs) {
|
|
err = -ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
nla_for_each_nested(attr, mac_attr, rem)
|
|
memcpy(func->srf_macs[i++].addr, nla_data(attr),
|
|
sizeof(*func->srf_macs));
|
|
}
|
|
}
|
|
|
|
if (tb[NL80211_NAN_FUNC_TX_MATCH_FILTER]) {
|
|
err = handle_nan_filter(tb[NL80211_NAN_FUNC_TX_MATCH_FILTER],
|
|
func, true);
|
|
if (err)
|
|
goto out;
|
|
}
|
|
|
|
if (tb[NL80211_NAN_FUNC_RX_MATCH_FILTER]) {
|
|
err = handle_nan_filter(tb[NL80211_NAN_FUNC_RX_MATCH_FILTER],
|
|
func, false);
|
|
if (err)
|
|
goto out;
|
|
}
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg) {
|
|
err = -ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
|
|
NL80211_CMD_ADD_NAN_FUNCTION);
|
|
/* This can't really happen - we just allocated 4KB */
|
|
if (WARN_ON(!hdr)) {
|
|
err = -ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
err = rdev_add_nan_func(rdev, wdev, func);
|
|
out:
|
|
if (err < 0) {
|
|
cfg80211_free_nan_func(func);
|
|
nlmsg_free(msg);
|
|
return err;
|
|
}
|
|
|
|
/* propagate the instance id and cookie to userspace */
|
|
if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, func->cookie,
|
|
NL80211_ATTR_PAD))
|
|
goto nla_put_failure;
|
|
|
|
func_attr = nla_nest_start(msg, NL80211_ATTR_NAN_FUNC);
|
|
if (!func_attr)
|
|
goto nla_put_failure;
|
|
|
|
if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID,
|
|
func->instance_id))
|
|
goto nla_put_failure;
|
|
|
|
nla_nest_end(msg, func_attr);
|
|
|
|
genlmsg_end(msg, hdr);
|
|
return genlmsg_reply(msg, info);
|
|
|
|
nla_put_failure:
|
|
nlmsg_free(msg);
|
|
return -ENOBUFS;
|
|
}
|
|
|
|
static int nl80211_nan_del_func(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct wireless_dev *wdev = info->user_ptr[1];
|
|
u64 cookie;
|
|
|
|
if (wdev->iftype != NL80211_IFTYPE_NAN)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!wdev_running(wdev))
|
|
return -ENOTCONN;
|
|
|
|
if (!info->attrs[NL80211_ATTR_COOKIE])
|
|
return -EINVAL;
|
|
|
|
cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
|
|
|
|
rdev_del_nan_func(rdev, wdev, cookie);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_nan_change_config(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct wireless_dev *wdev = info->user_ptr[1];
|
|
struct cfg80211_nan_conf conf = {};
|
|
u32 changed = 0;
|
|
|
|
if (wdev->iftype != NL80211_IFTYPE_NAN)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!wdev_running(wdev))
|
|
return -ENOTCONN;
|
|
|
|
if (info->attrs[NL80211_ATTR_NAN_MASTER_PREF]) {
|
|
conf.master_pref =
|
|
nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
|
|
if (conf.master_pref <= 1 || conf.master_pref == 255)
|
|
return -EINVAL;
|
|
|
|
changed |= CFG80211_NAN_CONF_CHANGED_PREF;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_BANDS]) {
|
|
u32 bands = nla_get_u32(info->attrs[NL80211_ATTR_BANDS]);
|
|
|
|
if (bands & ~(u32)wdev->wiphy->nan_supported_bands)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (bands && !(bands & BIT(NL80211_BAND_2GHZ)))
|
|
return -EINVAL;
|
|
|
|
conf.bands = bands;
|
|
changed |= CFG80211_NAN_CONF_CHANGED_BANDS;
|
|
}
|
|
|
|
if (!changed)
|
|
return -EINVAL;
|
|
|
|
return rdev_nan_change_conf(rdev, wdev, &conf, changed);
|
|
}
|
|
|
|
void cfg80211_nan_match(struct wireless_dev *wdev,
|
|
struct cfg80211_nan_match_params *match, gfp_t gfp)
|
|
{
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
|
|
struct nlattr *match_attr, *local_func_attr, *peer_func_attr;
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
|
|
if (WARN_ON(!match->inst_id || !match->peer_inst_id || !match->addr))
|
|
return;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
|
|
if (!msg)
|
|
return;
|
|
|
|
hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NAN_MATCH);
|
|
if (!hdr) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
|
|
(wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
|
|
wdev->netdev->ifindex)) ||
|
|
nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
|
|
NL80211_ATTR_PAD))
|
|
goto nla_put_failure;
|
|
|
|
if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, match->cookie,
|
|
NL80211_ATTR_PAD) ||
|
|
nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, match->addr))
|
|
goto nla_put_failure;
|
|
|
|
match_attr = nla_nest_start(msg, NL80211_ATTR_NAN_MATCH);
|
|
if (!match_attr)
|
|
goto nla_put_failure;
|
|
|
|
local_func_attr = nla_nest_start(msg, NL80211_NAN_MATCH_FUNC_LOCAL);
|
|
if (!local_func_attr)
|
|
goto nla_put_failure;
|
|
|
|
if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->inst_id))
|
|
goto nla_put_failure;
|
|
|
|
nla_nest_end(msg, local_func_attr);
|
|
|
|
peer_func_attr = nla_nest_start(msg, NL80211_NAN_MATCH_FUNC_PEER);
|
|
if (!peer_func_attr)
|
|
goto nla_put_failure;
|
|
|
|
if (nla_put_u8(msg, NL80211_NAN_FUNC_TYPE, match->type) ||
|
|
nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->peer_inst_id))
|
|
goto nla_put_failure;
|
|
|
|
if (match->info && match->info_len &&
|
|
nla_put(msg, NL80211_NAN_FUNC_SERVICE_INFO, match->info_len,
|
|
match->info))
|
|
goto nla_put_failure;
|
|
|
|
nla_nest_end(msg, peer_func_attr);
|
|
nla_nest_end(msg, match_attr);
|
|
genlmsg_end(msg, hdr);
|
|
|
|
if (!wdev->owner_nlportid)
|
|
genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
|
|
msg, 0, NL80211_MCGRP_NAN, gfp);
|
|
else
|
|
genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
|
|
wdev->owner_nlportid);
|
|
|
|
return;
|
|
|
|
nla_put_failure:
|
|
nlmsg_free(msg);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_nan_match);
|
|
|
|
void cfg80211_nan_func_terminated(struct wireless_dev *wdev,
|
|
u8 inst_id,
|
|
enum nl80211_nan_func_term_reason reason,
|
|
u64 cookie, gfp_t gfp)
|
|
{
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
|
|
struct sk_buff *msg;
|
|
struct nlattr *func_attr;
|
|
void *hdr;
|
|
|
|
if (WARN_ON(!inst_id))
|
|
return;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
|
|
if (!msg)
|
|
return;
|
|
|
|
hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_NAN_FUNCTION);
|
|
if (!hdr) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
|
|
(wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
|
|
wdev->netdev->ifindex)) ||
|
|
nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
|
|
NL80211_ATTR_PAD))
|
|
goto nla_put_failure;
|
|
|
|
if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
|
|
NL80211_ATTR_PAD))
|
|
goto nla_put_failure;
|
|
|
|
func_attr = nla_nest_start(msg, NL80211_ATTR_NAN_FUNC);
|
|
if (!func_attr)
|
|
goto nla_put_failure;
|
|
|
|
if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, inst_id) ||
|
|
nla_put_u8(msg, NL80211_NAN_FUNC_TERM_REASON, reason))
|
|
goto nla_put_failure;
|
|
|
|
nla_nest_end(msg, func_attr);
|
|
genlmsg_end(msg, hdr);
|
|
|
|
if (!wdev->owner_nlportid)
|
|
genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
|
|
msg, 0, NL80211_MCGRP_NAN, gfp);
|
|
else
|
|
genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
|
|
wdev->owner_nlportid);
|
|
|
|
return;
|
|
|
|
nla_put_failure:
|
|
nlmsg_free(msg);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_nan_func_terminated);
|
|
|
|
static int nl80211_get_protocol_features(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
void *hdr;
|
|
struct sk_buff *msg;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return -ENOMEM;
|
|
|
|
hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
|
|
NL80211_CMD_GET_PROTOCOL_FEATURES);
|
|
if (!hdr)
|
|
goto nla_put_failure;
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
|
|
NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
return genlmsg_reply(msg, info);
|
|
|
|
nla_put_failure:
|
|
kfree_skb(msg);
|
|
return -ENOBUFS;
|
|
}
|
|
|
|
static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct cfg80211_update_ft_ies_params ft_params;
|
|
struct net_device *dev = info->user_ptr[1];
|
|
|
|
if (!rdev->ops->update_ft_ies)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!info->attrs[NL80211_ATTR_MDID] ||
|
|
!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
|
|
return -EINVAL;
|
|
|
|
memset(&ft_params, 0, sizeof(ft_params));
|
|
ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
|
|
ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
|
|
ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
|
|
|
|
return rdev_update_ft_ies(rdev, dev, &ft_params);
|
|
}
|
|
|
|
static int nl80211_crit_protocol_start(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct wireless_dev *wdev = info->user_ptr[1];
|
|
enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
|
|
u16 duration;
|
|
int ret;
|
|
|
|
if (!rdev->ops->crit_proto_start)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (WARN_ON(!rdev->ops->crit_proto_stop))
|
|
return -EINVAL;
|
|
|
|
if (rdev->crit_proto_nlportid)
|
|
return -EBUSY;
|
|
|
|
/* determine protocol if provided */
|
|
if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
|
|
proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
|
|
|
|
if (proto >= NUM_NL80211_CRIT_PROTO)
|
|
return -EINVAL;
|
|
|
|
/* timeout must be provided */
|
|
if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
|
|
return -EINVAL;
|
|
|
|
duration =
|
|
nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
|
|
|
|
if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
|
|
return -ERANGE;
|
|
|
|
ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
|
|
if (!ret)
|
|
rdev->crit_proto_nlportid = info->snd_portid;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int nl80211_crit_protocol_stop(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct wireless_dev *wdev = info->user_ptr[1];
|
|
|
|
if (!rdev->ops->crit_proto_stop)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (rdev->crit_proto_nlportid) {
|
|
rdev->crit_proto_nlportid = 0;
|
|
rdev_crit_proto_stop(rdev, wdev);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct wireless_dev *wdev =
|
|
__cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
|
|
int i, err;
|
|
u32 vid, subcmd;
|
|
|
|
if (!rdev->wiphy.vendor_commands)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (IS_ERR(wdev)) {
|
|
err = PTR_ERR(wdev);
|
|
if (err != -EINVAL)
|
|
return err;
|
|
wdev = NULL;
|
|
} else if (wdev->wiphy != &rdev->wiphy) {
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
|
|
!info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
|
|
return -EINVAL;
|
|
|
|
vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
|
|
subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
|
|
for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
|
|
const struct wiphy_vendor_command *vcmd;
|
|
void *data = NULL;
|
|
int len = 0;
|
|
|
|
vcmd = &rdev->wiphy.vendor_commands[i];
|
|
|
|
if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
|
|
continue;
|
|
|
|
if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
|
|
WIPHY_VENDOR_CMD_NEED_NETDEV)) {
|
|
if (!wdev)
|
|
return -EINVAL;
|
|
if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
|
|
!wdev->netdev)
|
|
return -EINVAL;
|
|
|
|
if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
|
|
if (!wdev_running(wdev))
|
|
return -ENETDOWN;
|
|
}
|
|
|
|
if (!vcmd->doit)
|
|
return -EOPNOTSUPP;
|
|
} else {
|
|
wdev = NULL;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
|
|
data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
|
|
len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
|
|
}
|
|
|
|
rdev->cur_cmd_info = info;
|
|
err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
|
|
data, len);
|
|
rdev->cur_cmd_info = NULL;
|
|
return err;
|
|
}
|
|
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
|
|
struct netlink_callback *cb,
|
|
struct cfg80211_registered_device **rdev,
|
|
struct wireless_dev **wdev)
|
|
{
|
|
struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
|
|
u32 vid, subcmd;
|
|
unsigned int i;
|
|
int vcmd_idx = -1;
|
|
int err;
|
|
void *data = NULL;
|
|
unsigned int data_len = 0;
|
|
|
|
if (cb->args[0]) {
|
|
/* subtract the 1 again here */
|
|
struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
|
|
struct wireless_dev *tmp;
|
|
|
|
if (!wiphy)
|
|
return -ENODEV;
|
|
*rdev = wiphy_to_rdev(wiphy);
|
|
*wdev = NULL;
|
|
|
|
if (cb->args[1]) {
|
|
list_for_each_entry(tmp, &wiphy->wdev_list, list) {
|
|
if (tmp->identifier == cb->args[1] - 1) {
|
|
*wdev = tmp;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* keep rtnl locked in successful case */
|
|
return 0;
|
|
}
|
|
|
|
err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, attrbuf,
|
|
nl80211_fam.maxattr, nl80211_policy, NULL);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!attrbuf[NL80211_ATTR_VENDOR_ID] ||
|
|
!attrbuf[NL80211_ATTR_VENDOR_SUBCMD])
|
|
return -EINVAL;
|
|
|
|
*wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk), attrbuf);
|
|
if (IS_ERR(*wdev))
|
|
*wdev = NULL;
|
|
|
|
*rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf);
|
|
if (IS_ERR(*rdev))
|
|
return PTR_ERR(*rdev);
|
|
|
|
vid = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_ID]);
|
|
subcmd = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
|
|
|
|
for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
|
|
const struct wiphy_vendor_command *vcmd;
|
|
|
|
vcmd = &(*rdev)->wiphy.vendor_commands[i];
|
|
|
|
if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
|
|
continue;
|
|
|
|
if (!vcmd->dumpit)
|
|
return -EOPNOTSUPP;
|
|
|
|
vcmd_idx = i;
|
|
break;
|
|
}
|
|
|
|
if (vcmd_idx < 0)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (attrbuf[NL80211_ATTR_VENDOR_DATA]) {
|
|
data = nla_data(attrbuf[NL80211_ATTR_VENDOR_DATA]);
|
|
data_len = nla_len(attrbuf[NL80211_ATTR_VENDOR_DATA]);
|
|
}
|
|
|
|
/* 0 is the first index - add 1 to parse only once */
|
|
cb->args[0] = (*rdev)->wiphy_idx + 1;
|
|
/* add 1 to know if it was NULL */
|
|
cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
|
|
cb->args[2] = vcmd_idx;
|
|
cb->args[3] = (unsigned long)data;
|
|
cb->args[4] = data_len;
|
|
|
|
/* keep rtnl locked in successful case */
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
|
|
struct netlink_callback *cb)
|
|
{
|
|
struct cfg80211_registered_device *rdev;
|
|
struct wireless_dev *wdev;
|
|
unsigned int vcmd_idx;
|
|
const struct wiphy_vendor_command *vcmd;
|
|
void *data;
|
|
int data_len;
|
|
int err;
|
|
struct nlattr *vendor_data;
|
|
|
|
rtnl_lock();
|
|
err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
|
|
if (err)
|
|
goto out;
|
|
|
|
vcmd_idx = cb->args[2];
|
|
data = (void *)cb->args[3];
|
|
data_len = cb->args[4];
|
|
vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
|
|
|
|
if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
|
|
WIPHY_VENDOR_CMD_NEED_NETDEV)) {
|
|
if (!wdev) {
|
|
err = -EINVAL;
|
|
goto out;
|
|
}
|
|
if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
|
|
!wdev->netdev) {
|
|
err = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
|
|
if (!wdev_running(wdev)) {
|
|
err = -ENETDOWN;
|
|
goto out;
|
|
}
|
|
}
|
|
}
|
|
|
|
while (1) {
|
|
void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
|
|
cb->nlh->nlmsg_seq, NLM_F_MULTI,
|
|
NL80211_CMD_VENDOR);
|
|
if (!hdr)
|
|
break;
|
|
|
|
if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
|
|
(wdev && nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
|
|
wdev_id(wdev),
|
|
NL80211_ATTR_PAD))) {
|
|
genlmsg_cancel(skb, hdr);
|
|
break;
|
|
}
|
|
|
|
vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
|
|
if (!vendor_data) {
|
|
genlmsg_cancel(skb, hdr);
|
|
break;
|
|
}
|
|
|
|
err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
|
|
(unsigned long *)&cb->args[5]);
|
|
nla_nest_end(skb, vendor_data);
|
|
|
|
if (err == -ENOBUFS || err == -ENOENT) {
|
|
genlmsg_cancel(skb, hdr);
|
|
break;
|
|
} else if (err) {
|
|
genlmsg_cancel(skb, hdr);
|
|
goto out;
|
|
}
|
|
|
|
genlmsg_end(skb, hdr);
|
|
}
|
|
|
|
err = skb->len;
|
|
out:
|
|
rtnl_unlock();
|
|
return err;
|
|
}
|
|
|
|
struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
|
|
enum nl80211_commands cmd,
|
|
enum nl80211_attrs attr,
|
|
int approxlen)
|
|
{
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
|
|
|
|
if (WARN_ON(!rdev->cur_cmd_info))
|
|
return NULL;
|
|
|
|
return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
|
|
rdev->cur_cmd_info->snd_portid,
|
|
rdev->cur_cmd_info->snd_seq,
|
|
cmd, attr, NULL, GFP_KERNEL);
|
|
}
|
|
EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
|
|
|
|
int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
|
|
{
|
|
struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
|
|
void *hdr = ((void **)skb->cb)[1];
|
|
struct nlattr *data = ((void **)skb->cb)[2];
|
|
|
|
/* clear CB data for netlink core to own from now on */
|
|
memset(skb->cb, 0, sizeof(skb->cb));
|
|
|
|
if (WARN_ON(!rdev->cur_cmd_info)) {
|
|
kfree_skb(skb);
|
|
return -EINVAL;
|
|
}
|
|
|
|
nla_nest_end(skb, data);
|
|
genlmsg_end(skb, hdr);
|
|
return genlmsg_reply(skb, rdev->cur_cmd_info);
|
|
}
|
|
EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
|
|
|
|
static int nl80211_set_qos_map(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct cfg80211_qos_map *qos_map = NULL;
|
|
struct net_device *dev = info->user_ptr[1];
|
|
u8 *pos, len, num_des, des_len, des;
|
|
int ret;
|
|
|
|
if (!rdev->ops->set_qos_map)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (info->attrs[NL80211_ATTR_QOS_MAP]) {
|
|
pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
|
|
len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
|
|
|
|
if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
|
|
len > IEEE80211_QOS_MAP_LEN_MAX)
|
|
return -EINVAL;
|
|
|
|
qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
|
|
if (!qos_map)
|
|
return -ENOMEM;
|
|
|
|
num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
|
|
if (num_des) {
|
|
des_len = num_des *
|
|
sizeof(struct cfg80211_dscp_exception);
|
|
memcpy(qos_map->dscp_exception, pos, des_len);
|
|
qos_map->num_des = num_des;
|
|
for (des = 0; des < num_des; des++) {
|
|
if (qos_map->dscp_exception[des].up > 7) {
|
|
kfree(qos_map);
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
pos += des_len;
|
|
}
|
|
memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
|
|
}
|
|
|
|
wdev_lock(dev->ieee80211_ptr);
|
|
ret = nl80211_key_allowed(dev->ieee80211_ptr);
|
|
if (!ret)
|
|
ret = rdev_set_qos_map(rdev, dev, qos_map);
|
|
wdev_unlock(dev->ieee80211_ptr);
|
|
|
|
kfree(qos_map);
|
|
return ret;
|
|
}
|
|
|
|
static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
const u8 *peer;
|
|
u8 tsid, up;
|
|
u16 admitted_time = 0;
|
|
int err;
|
|
|
|
if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
|
|
!info->attrs[NL80211_ATTR_USER_PRIO])
|
|
return -EINVAL;
|
|
|
|
tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
|
|
if (tsid >= IEEE80211_NUM_TIDS)
|
|
return -EINVAL;
|
|
|
|
up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
|
|
if (up >= IEEE80211_NUM_UPS)
|
|
return -EINVAL;
|
|
|
|
/* WMM uses TIDs 0-7 even for TSPEC */
|
|
if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
|
|
/* TODO: handle 802.11 TSPEC/admission control
|
|
* need more attributes for that (e.g. BA session requirement);
|
|
* change the WMM adminssion test above to allow both then
|
|
*/
|
|
return -EINVAL;
|
|
}
|
|
|
|
peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
|
|
if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
|
|
admitted_time =
|
|
nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
|
|
if (!admitted_time)
|
|
return -EINVAL;
|
|
}
|
|
|
|
wdev_lock(wdev);
|
|
switch (wdev->iftype) {
|
|
case NL80211_IFTYPE_STATION:
|
|
case NL80211_IFTYPE_P2P_CLIENT:
|
|
if (wdev->current_bss)
|
|
break;
|
|
err = -ENOTCONN;
|
|
goto out;
|
|
default:
|
|
err = -EOPNOTSUPP;
|
|
goto out;
|
|
}
|
|
|
|
err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
|
|
|
|
out:
|
|
wdev_unlock(wdev);
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
const u8 *peer;
|
|
u8 tsid;
|
|
int err;
|
|
|
|
if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
|
|
return -EINVAL;
|
|
|
|
tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
|
|
peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
|
|
wdev_lock(wdev);
|
|
err = rdev_del_tx_ts(rdev, dev, tsid, peer);
|
|
wdev_unlock(wdev);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_tdls_channel_switch(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct cfg80211_chan_def chandef = {};
|
|
const u8 *addr;
|
|
u8 oper_class;
|
|
int err;
|
|
|
|
if (!rdev->ops->tdls_channel_switch ||
|
|
!(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
|
|
return -EOPNOTSUPP;
|
|
|
|
switch (dev->ieee80211_ptr->iftype) {
|
|
case NL80211_IFTYPE_STATION:
|
|
case NL80211_IFTYPE_P2P_CLIENT:
|
|
break;
|
|
default:
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
if (!info->attrs[NL80211_ATTR_MAC] ||
|
|
!info->attrs[NL80211_ATTR_OPER_CLASS])
|
|
return -EINVAL;
|
|
|
|
err = nl80211_parse_chandef(rdev, info, &chandef);
|
|
if (err)
|
|
return err;
|
|
|
|
/*
|
|
* Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
|
|
* section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
|
|
* specification is not defined for them.
|
|
*/
|
|
if (chandef.chan->band == NL80211_BAND_2GHZ &&
|
|
chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
|
|
chandef.width != NL80211_CHAN_WIDTH_20)
|
|
return -EINVAL;
|
|
|
|
/* we will be active on the TDLS link */
|
|
if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
|
|
wdev->iftype))
|
|
return -EINVAL;
|
|
|
|
/* don't allow switching to DFS channels */
|
|
if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
|
|
return -EINVAL;
|
|
|
|
addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
|
|
|
|
wdev_lock(wdev);
|
|
err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
|
|
wdev_unlock(wdev);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
const u8 *addr;
|
|
|
|
if (!rdev->ops->tdls_channel_switch ||
|
|
!rdev->ops->tdls_cancel_channel_switch ||
|
|
!(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
|
|
return -EOPNOTSUPP;
|
|
|
|
switch (dev->ieee80211_ptr->iftype) {
|
|
case NL80211_IFTYPE_STATION:
|
|
case NL80211_IFTYPE_P2P_CLIENT:
|
|
break;
|
|
default:
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
if (!info->attrs[NL80211_ATTR_MAC])
|
|
return -EINVAL;
|
|
|
|
addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
|
|
wdev_lock(wdev);
|
|
rdev_tdls_cancel_channel_switch(rdev, dev, addr);
|
|
wdev_unlock(wdev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_set_multicast_to_unicast(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
const struct nlattr *nla;
|
|
bool enabled;
|
|
|
|
if (!rdev->ops->set_multicast_to_unicast)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (wdev->iftype != NL80211_IFTYPE_AP &&
|
|
wdev->iftype != NL80211_IFTYPE_P2P_GO)
|
|
return -EOPNOTSUPP;
|
|
|
|
nla = info->attrs[NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED];
|
|
enabled = nla_get_flag(nla);
|
|
|
|
return rdev_set_multicast_to_unicast(rdev, dev, enabled);
|
|
}
|
|
|
|
static int nl80211_set_pmk(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct cfg80211_pmk_conf pmk_conf = {};
|
|
int ret;
|
|
|
|
if (wdev->iftype != NL80211_IFTYPE_STATION &&
|
|
wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!wiphy_ext_feature_isset(&rdev->wiphy,
|
|
NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!info->attrs[NL80211_ATTR_MAC] || !info->attrs[NL80211_ATTR_PMK])
|
|
return -EINVAL;
|
|
|
|
wdev_lock(wdev);
|
|
if (!wdev->current_bss) {
|
|
ret = -ENOTCONN;
|
|
goto out;
|
|
}
|
|
|
|
pmk_conf.aa = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
if (memcmp(pmk_conf.aa, wdev->current_bss->pub.bssid, ETH_ALEN)) {
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
pmk_conf.pmk = nla_data(info->attrs[NL80211_ATTR_PMK]);
|
|
pmk_conf.pmk_len = nla_len(info->attrs[NL80211_ATTR_PMK]);
|
|
if (pmk_conf.pmk_len != WLAN_PMK_LEN &&
|
|
pmk_conf.pmk_len != WLAN_PMK_LEN_SUITE_B_192) {
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_PMKR0_NAME]) {
|
|
int r0_name_len = nla_len(info->attrs[NL80211_ATTR_PMKR0_NAME]);
|
|
|
|
if (r0_name_len != WLAN_PMK_NAME_LEN) {
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
pmk_conf.pmk_r0_name =
|
|
nla_data(info->attrs[NL80211_ATTR_PMKR0_NAME]);
|
|
}
|
|
|
|
ret = rdev_set_pmk(rdev, dev, &pmk_conf);
|
|
out:
|
|
wdev_unlock(wdev);
|
|
return ret;
|
|
}
|
|
|
|
static int nl80211_del_pmk(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
const u8 *aa;
|
|
int ret;
|
|
|
|
if (wdev->iftype != NL80211_IFTYPE_STATION &&
|
|
wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!wiphy_ext_feature_isset(&rdev->wiphy,
|
|
NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!info->attrs[NL80211_ATTR_MAC])
|
|
return -EINVAL;
|
|
|
|
wdev_lock(wdev);
|
|
aa = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
ret = rdev_del_pmk(rdev, dev, aa);
|
|
wdev_unlock(wdev);
|
|
|
|
return ret;
|
|
}
|
|
|
|
#define NL80211_FLAG_NEED_WIPHY 0x01
|
|
#define NL80211_FLAG_NEED_NETDEV 0x02
|
|
#define NL80211_FLAG_NEED_RTNL 0x04
|
|
#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
|
|
#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
|
|
NL80211_FLAG_CHECK_NETDEV_UP)
|
|
#define NL80211_FLAG_NEED_WDEV 0x10
|
|
/* If a netdev is associated, it must be UP, P2P must be started */
|
|
#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
|
|
NL80211_FLAG_CHECK_NETDEV_UP)
|
|
#define NL80211_FLAG_CLEAR_SKB 0x20
|
|
|
|
static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev;
|
|
struct wireless_dev *wdev;
|
|
struct net_device *dev;
|
|
bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
|
|
|
|
if (rtnl)
|
|
rtnl_lock();
|
|
|
|
if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
|
|
rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
|
|
if (IS_ERR(rdev)) {
|
|
if (rtnl)
|
|
rtnl_unlock();
|
|
return PTR_ERR(rdev);
|
|
}
|
|
info->user_ptr[0] = rdev;
|
|
} else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
|
|
ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
|
|
ASSERT_RTNL();
|
|
|
|
wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
|
|
info->attrs);
|
|
if (IS_ERR(wdev)) {
|
|
if (rtnl)
|
|
rtnl_unlock();
|
|
return PTR_ERR(wdev);
|
|
}
|
|
|
|
dev = wdev->netdev;
|
|
rdev = wiphy_to_rdev(wdev->wiphy);
|
|
|
|
if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
|
|
if (!dev) {
|
|
if (rtnl)
|
|
rtnl_unlock();
|
|
return -EINVAL;
|
|
}
|
|
|
|
info->user_ptr[1] = dev;
|
|
} else {
|
|
info->user_ptr[1] = wdev;
|
|
}
|
|
|
|
if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
|
|
!wdev_running(wdev)) {
|
|
if (rtnl)
|
|
rtnl_unlock();
|
|
return -ENETDOWN;
|
|
}
|
|
|
|
if (dev)
|
|
dev_hold(dev);
|
|
|
|
info->user_ptr[0] = rdev;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
if (info->user_ptr[1]) {
|
|
if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
|
|
struct wireless_dev *wdev = info->user_ptr[1];
|
|
|
|
if (wdev->netdev)
|
|
dev_put(wdev->netdev);
|
|
} else {
|
|
dev_put(info->user_ptr[1]);
|
|
}
|
|
}
|
|
|
|
if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
|
|
rtnl_unlock();
|
|
|
|
/* If needed, clear the netlink message payload from the SKB
|
|
* as it might contain key data that shouldn't stick around on
|
|
* the heap after the SKB is freed. The netlink message header
|
|
* is still needed for further processing, so leave it intact.
|
|
*/
|
|
if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
|
|
struct nlmsghdr *nlh = nlmsg_hdr(skb);
|
|
|
|
memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
|
|
}
|
|
}
|
|
|
|
static const struct genl_ops nl80211_ops[] = {
|
|
{
|
|
.cmd = NL80211_CMD_GET_WIPHY,
|
|
.doit = nl80211_get_wiphy,
|
|
.dumpit = nl80211_dump_wiphy,
|
|
.done = nl80211_dump_wiphy_done,
|
|
.policy = nl80211_policy,
|
|
/* can be retrieved by unprivileged users */
|
|
.internal_flags = NL80211_FLAG_NEED_WIPHY |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_SET_WIPHY,
|
|
.doit = nl80211_set_wiphy,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_GET_INTERFACE,
|
|
.doit = nl80211_get_interface,
|
|
.dumpit = nl80211_dump_interface,
|
|
.policy = nl80211_policy,
|
|
/* can be retrieved by unprivileged users */
|
|
.internal_flags = NL80211_FLAG_NEED_WDEV |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_SET_INTERFACE,
|
|
.doit = nl80211_set_interface,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_NEW_INTERFACE,
|
|
.doit = nl80211_new_interface,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_WIPHY |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_DEL_INTERFACE,
|
|
.doit = nl80211_del_interface,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_WDEV |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_GET_KEY,
|
|
.doit = nl80211_get_key,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_SET_KEY,
|
|
.doit = nl80211_set_key,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL |
|
|
NL80211_FLAG_CLEAR_SKB,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_NEW_KEY,
|
|
.doit = nl80211_new_key,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL |
|
|
NL80211_FLAG_CLEAR_SKB,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_DEL_KEY,
|
|
.doit = nl80211_del_key,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_SET_BEACON,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.doit = nl80211_set_beacon,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_START_AP,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.doit = nl80211_start_ap,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_STOP_AP,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.doit = nl80211_stop_ap,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_GET_STATION,
|
|
.doit = nl80211_get_station,
|
|
.dumpit = nl80211_dump_station,
|
|
.policy = nl80211_policy,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_SET_STATION,
|
|
.doit = nl80211_set_station,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_NEW_STATION,
|
|
.doit = nl80211_new_station,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_DEL_STATION,
|
|
.doit = nl80211_del_station,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_GET_MPATH,
|
|
.doit = nl80211_get_mpath,
|
|
.dumpit = nl80211_dump_mpath,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_GET_MPP,
|
|
.doit = nl80211_get_mpp,
|
|
.dumpit = nl80211_dump_mpp,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_SET_MPATH,
|
|
.doit = nl80211_set_mpath,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_NEW_MPATH,
|
|
.doit = nl80211_new_mpath,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_DEL_MPATH,
|
|
.doit = nl80211_del_mpath,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_SET_BSS,
|
|
.doit = nl80211_set_bss,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_GET_REG,
|
|
.doit = nl80211_get_reg_do,
|
|
.dumpit = nl80211_get_reg_dump,
|
|
.policy = nl80211_policy,
|
|
.internal_flags = NL80211_FLAG_NEED_RTNL,
|
|
/* can be retrieved by unprivileged users */
|
|
},
|
|
#ifdef CONFIG_CFG80211_CRDA_SUPPORT
|
|
{
|
|
.cmd = NL80211_CMD_SET_REG,
|
|
.doit = nl80211_set_reg,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
#endif
|
|
{
|
|
.cmd = NL80211_CMD_REQ_SET_REG,
|
|
.doit = nl80211_req_set_reg,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_RELOAD_REGDB,
|
|
.doit = nl80211_reload_regdb,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_GET_MESH_CONFIG,
|
|
.doit = nl80211_get_mesh_config,
|
|
.policy = nl80211_policy,
|
|
/* can be retrieved by unprivileged users */
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_SET_MESH_CONFIG,
|
|
.doit = nl80211_update_mesh_config,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_TRIGGER_SCAN,
|
|
.doit = nl80211_trigger_scan,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_WDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_ABORT_SCAN,
|
|
.doit = nl80211_abort_scan,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_WDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_GET_SCAN,
|
|
.policy = nl80211_policy,
|
|
.dumpit = nl80211_dump_scan,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_START_SCHED_SCAN,
|
|
.doit = nl80211_start_sched_scan,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_STOP_SCHED_SCAN,
|
|
.doit = nl80211_stop_sched_scan,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_AUTHENTICATE,
|
|
.doit = nl80211_authenticate,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL |
|
|
NL80211_FLAG_CLEAR_SKB,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_ASSOCIATE,
|
|
.doit = nl80211_associate,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_DEAUTHENTICATE,
|
|
.doit = nl80211_deauthenticate,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_DISASSOCIATE,
|
|
.doit = nl80211_disassociate,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_JOIN_IBSS,
|
|
.doit = nl80211_join_ibss,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_LEAVE_IBSS,
|
|
.doit = nl80211_leave_ibss,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
#ifdef CONFIG_NL80211_TESTMODE
|
|
{
|
|
.cmd = NL80211_CMD_TESTMODE,
|
|
.doit = nl80211_testmode_do,
|
|
.dumpit = nl80211_testmode_dump,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_WIPHY |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
#endif
|
|
{
|
|
.cmd = NL80211_CMD_CONNECT,
|
|
.doit = nl80211_connect,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_UPDATE_CONNECT_PARAMS,
|
|
.doit = nl80211_update_connect_params,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_DISCONNECT,
|
|
.doit = nl80211_disconnect,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_SET_WIPHY_NETNS,
|
|
.doit = nl80211_wiphy_netns,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_WIPHY |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_GET_SURVEY,
|
|
.policy = nl80211_policy,
|
|
.dumpit = nl80211_dump_survey,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_SET_PMKSA,
|
|
.doit = nl80211_setdel_pmksa,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_DEL_PMKSA,
|
|
.doit = nl80211_setdel_pmksa,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_FLUSH_PMKSA,
|
|
.doit = nl80211_flush_pmksa,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
|
|
.doit = nl80211_remain_on_channel,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_WDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
|
|
.doit = nl80211_cancel_remain_on_channel,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_WDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
|
|
.doit = nl80211_set_tx_bitrate_mask,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_REGISTER_FRAME,
|
|
.doit = nl80211_register_mgmt,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_WDEV |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_FRAME,
|
|
.doit = nl80211_tx_mgmt,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_WDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
|
|
.doit = nl80211_tx_mgmt_cancel_wait,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_WDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_SET_POWER_SAVE,
|
|
.doit = nl80211_set_power_save,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_GET_POWER_SAVE,
|
|
.doit = nl80211_get_power_save,
|
|
.policy = nl80211_policy,
|
|
/* can be retrieved by unprivileged users */
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_SET_CQM,
|
|
.doit = nl80211_set_cqm,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_SET_CHANNEL,
|
|
.doit = nl80211_set_channel,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_SET_WDS_PEER,
|
|
.doit = nl80211_set_wds_peer,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_JOIN_MESH,
|
|
.doit = nl80211_join_mesh,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_LEAVE_MESH,
|
|
.doit = nl80211_leave_mesh,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_JOIN_OCB,
|
|
.doit = nl80211_join_ocb,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_LEAVE_OCB,
|
|
.doit = nl80211_leave_ocb,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
#ifdef CONFIG_PM
|
|
{
|
|
.cmd = NL80211_CMD_GET_WOWLAN,
|
|
.doit = nl80211_get_wowlan,
|
|
.policy = nl80211_policy,
|
|
/* can be retrieved by unprivileged users */
|
|
.internal_flags = NL80211_FLAG_NEED_WIPHY |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_SET_WOWLAN,
|
|
.doit = nl80211_set_wowlan,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_WIPHY |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
#endif
|
|
{
|
|
.cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
|
|
.doit = nl80211_set_rekey_data,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL |
|
|
NL80211_FLAG_CLEAR_SKB,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_TDLS_MGMT,
|
|
.doit = nl80211_tdls_mgmt,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_TDLS_OPER,
|
|
.doit = nl80211_tdls_oper,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_UNEXPECTED_FRAME,
|
|
.doit = nl80211_register_unexpected_frame,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_PROBE_CLIENT,
|
|
.doit = nl80211_probe_client,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_REGISTER_BEACONS,
|
|
.doit = nl80211_register_beacons,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_WIPHY |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_SET_NOACK_MAP,
|
|
.doit = nl80211_set_noack_map,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_START_P2P_DEVICE,
|
|
.doit = nl80211_start_p2p_device,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_WDEV |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_STOP_P2P_DEVICE,
|
|
.doit = nl80211_stop_p2p_device,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_WDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_START_NAN,
|
|
.doit = nl80211_start_nan,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_WDEV |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_STOP_NAN,
|
|
.doit = nl80211_stop_nan,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_WDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_ADD_NAN_FUNCTION,
|
|
.doit = nl80211_nan_add_func,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_WDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_DEL_NAN_FUNCTION,
|
|
.doit = nl80211_nan_del_func,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_WDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_CHANGE_NAN_CONFIG,
|
|
.doit = nl80211_nan_change_config,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_WDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_SET_MCAST_RATE,
|
|
.doit = nl80211_set_mcast_rate,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_SET_MAC_ACL,
|
|
.doit = nl80211_set_mac_acl,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_RADAR_DETECT,
|
|
.doit = nl80211_start_radar_detection,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
|
|
.doit = nl80211_get_protocol_features,
|
|
.policy = nl80211_policy,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_UPDATE_FT_IES,
|
|
.doit = nl80211_update_ft_ies,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_CRIT_PROTOCOL_START,
|
|
.doit = nl80211_crit_protocol_start,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_WDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
|
|
.doit = nl80211_crit_protocol_stop,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_WDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_GET_COALESCE,
|
|
.doit = nl80211_get_coalesce,
|
|
.policy = nl80211_policy,
|
|
.internal_flags = NL80211_FLAG_NEED_WIPHY |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_SET_COALESCE,
|
|
.doit = nl80211_set_coalesce,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_WIPHY |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_CHANNEL_SWITCH,
|
|
.doit = nl80211_channel_switch,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_VENDOR,
|
|
.doit = nl80211_vendor_cmd,
|
|
.dumpit = nl80211_vendor_cmd_dump,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_WIPHY |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_SET_QOS_MAP,
|
|
.doit = nl80211_set_qos_map,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_ADD_TX_TS,
|
|
.doit = nl80211_add_tx_ts,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_DEL_TX_TS,
|
|
.doit = nl80211_del_tx_ts,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
|
|
.doit = nl80211_tdls_channel_switch,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
|
|
.doit = nl80211_tdls_cancel_channel_switch,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_SET_MULTICAST_TO_UNICAST,
|
|
.doit = nl80211_set_multicast_to_unicast,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_UNS_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_SET_PMK,
|
|
.doit = nl80211_set_pmk,
|
|
.policy = nl80211_policy,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_DEL_PMK,
|
|
.doit = nl80211_del_pmk,
|
|
.policy = nl80211_policy,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
|
|
};
|
|
|
|
static struct genl_family nl80211_fam __ro_after_init = {
|
|
.name = NL80211_GENL_NAME, /* have users key off the name instead */
|
|
.hdrsize = 0, /* no private header */
|
|
.version = 1, /* no particular meaning now */
|
|
.maxattr = NL80211_ATTR_MAX,
|
|
.netnsok = true,
|
|
.pre_doit = nl80211_pre_doit,
|
|
.post_doit = nl80211_post_doit,
|
|
.module = THIS_MODULE,
|
|
.ops = nl80211_ops,
|
|
.n_ops = ARRAY_SIZE(nl80211_ops),
|
|
.mcgrps = nl80211_mcgrps,
|
|
.n_mcgrps = ARRAY_SIZE(nl80211_mcgrps),
|
|
};
|
|
|
|
/* notification functions */
|
|
|
|
void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
|
|
enum nl80211_commands cmd)
|
|
{
|
|
struct sk_buff *msg;
|
|
struct nl80211_dump_wiphy_state state = {};
|
|
|
|
WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
|
|
cmd != NL80211_CMD_DEL_WIPHY);
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return;
|
|
|
|
if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
|
|
NL80211_MCGRP_CONFIG, GFP_KERNEL);
|
|
}
|
|
|
|
void nl80211_notify_iface(struct cfg80211_registered_device *rdev,
|
|
struct wireless_dev *wdev,
|
|
enum nl80211_commands cmd)
|
|
{
|
|
struct sk_buff *msg;
|
|
|
|
WARN_ON(cmd != NL80211_CMD_NEW_INTERFACE &&
|
|
cmd != NL80211_CMD_DEL_INTERFACE);
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return;
|
|
|
|
if (nl80211_send_iface(msg, 0, 0, 0, rdev, wdev,
|
|
cmd == NL80211_CMD_DEL_INTERFACE) < 0) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
|
|
NL80211_MCGRP_CONFIG, GFP_KERNEL);
|
|
}
|
|
|
|
static int nl80211_add_scan_req(struct sk_buff *msg,
|
|
struct cfg80211_registered_device *rdev)
|
|
{
|
|
struct cfg80211_scan_request *req = rdev->scan_req;
|
|
struct nlattr *nest;
|
|
int i;
|
|
|
|
if (WARN_ON(!req))
|
|
return 0;
|
|
|
|
nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
|
|
if (!nest)
|
|
goto nla_put_failure;
|
|
for (i = 0; i < req->n_ssids; i++) {
|
|
if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
|
|
goto nla_put_failure;
|
|
}
|
|
nla_nest_end(msg, nest);
|
|
|
|
nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
|
|
if (!nest)
|
|
goto nla_put_failure;
|
|
for (i = 0; i < req->n_channels; i++) {
|
|
if (nla_put_u32(msg, i, req->channels[i]->center_freq))
|
|
goto nla_put_failure;
|
|
}
|
|
nla_nest_end(msg, nest);
|
|
|
|
if (req->ie &&
|
|
nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
|
|
goto nla_put_failure;
|
|
|
|
if (req->flags &&
|
|
nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
|
|
goto nla_put_failure;
|
|
|
|
if (req->info.scan_start_tsf &&
|
|
(nla_put_u64_64bit(msg, NL80211_ATTR_SCAN_START_TIME_TSF,
|
|
req->info.scan_start_tsf, NL80211_BSS_PAD) ||
|
|
nla_put(msg, NL80211_ATTR_SCAN_START_TIME_TSF_BSSID, ETH_ALEN,
|
|
req->info.tsf_bssid)))
|
|
goto nla_put_failure;
|
|
|
|
return 0;
|
|
nla_put_failure:
|
|
return -ENOBUFS;
|
|
}
|
|
|
|
static int nl80211_prep_scan_msg(struct sk_buff *msg,
|
|
struct cfg80211_registered_device *rdev,
|
|
struct wireless_dev *wdev,
|
|
u32 portid, u32 seq, int flags,
|
|
u32 cmd)
|
|
{
|
|
void *hdr;
|
|
|
|
hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
|
|
if (!hdr)
|
|
return -1;
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
|
|
(wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
|
|
wdev->netdev->ifindex)) ||
|
|
nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
|
|
NL80211_ATTR_PAD))
|
|
goto nla_put_failure;
|
|
|
|
/* ignore errors and send incomplete event anyway */
|
|
nl80211_add_scan_req(msg, rdev);
|
|
|
|
genlmsg_end(msg, hdr);
|
|
return 0;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
static int
|
|
nl80211_prep_sched_scan_msg(struct sk_buff *msg,
|
|
struct cfg80211_sched_scan_request *req, u32 cmd)
|
|
{
|
|
void *hdr;
|
|
|
|
hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
|
|
if (!hdr)
|
|
return -1;
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY,
|
|
wiphy_to_rdev(req->wiphy)->wiphy_idx) ||
|
|
nla_put_u32(msg, NL80211_ATTR_IFINDEX, req->dev->ifindex) ||
|
|
nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, req->reqid,
|
|
NL80211_ATTR_PAD))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
return 0;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
|
|
struct wireless_dev *wdev)
|
|
{
|
|
struct sk_buff *msg;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return;
|
|
|
|
if (nl80211_prep_scan_msg(msg, rdev, wdev, 0, 0, 0,
|
|
NL80211_CMD_TRIGGER_SCAN) < 0) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
|
|
NL80211_MCGRP_SCAN, GFP_KERNEL);
|
|
}
|
|
|
|
struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
|
|
struct wireless_dev *wdev, bool aborted)
|
|
{
|
|
struct sk_buff *msg;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return NULL;
|
|
|
|
if (nl80211_prep_scan_msg(msg, rdev, wdev, 0, 0, 0,
|
|
aborted ? NL80211_CMD_SCAN_ABORTED :
|
|
NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
|
|
nlmsg_free(msg);
|
|
return NULL;
|
|
}
|
|
|
|
return msg;
|
|
}
|
|
|
|
/* send message created by nl80211_build_scan_msg() */
|
|
void nl80211_send_scan_msg(struct cfg80211_registered_device *rdev,
|
|
struct sk_buff *msg)
|
|
{
|
|
if (!msg)
|
|
return;
|
|
|
|
genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
|
|
NL80211_MCGRP_SCAN, GFP_KERNEL);
|
|
}
|
|
|
|
void nl80211_send_sched_scan(struct cfg80211_sched_scan_request *req, u32 cmd)
|
|
{
|
|
struct sk_buff *msg;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return;
|
|
|
|
if (nl80211_prep_sched_scan_msg(msg, req, cmd) < 0) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
genlmsg_multicast_netns(&nl80211_fam, wiphy_net(req->wiphy), msg, 0,
|
|
NL80211_MCGRP_SCAN, GFP_KERNEL);
|
|
}
|
|
|
|
static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
|
|
struct regulatory_request *request)
|
|
{
|
|
/* Userspace can always count this one always being set */
|
|
if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
|
|
goto nla_put_failure;
|
|
|
|
if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
|
|
if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
|
|
NL80211_REGDOM_TYPE_WORLD))
|
|
goto nla_put_failure;
|
|
} else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
|
|
if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
|
|
NL80211_REGDOM_TYPE_CUSTOM_WORLD))
|
|
goto nla_put_failure;
|
|
} else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
|
|
request->intersect) {
|
|
if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
|
|
NL80211_REGDOM_TYPE_INTERSECTION))
|
|
goto nla_put_failure;
|
|
} else {
|
|
if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
|
|
NL80211_REGDOM_TYPE_COUNTRY) ||
|
|
nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
|
|
request->alpha2))
|
|
goto nla_put_failure;
|
|
}
|
|
|
|
if (request->wiphy_idx != WIPHY_IDX_INVALID) {
|
|
struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
|
|
|
|
if (wiphy &&
|
|
nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
|
|
goto nla_put_failure;
|
|
|
|
if (wiphy &&
|
|
wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
|
|
nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
|
|
goto nla_put_failure;
|
|
}
|
|
|
|
return true;
|
|
|
|
nla_put_failure:
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
* This can happen on global regulatory changes or device specific settings
|
|
* based on custom regulatory domains.
|
|
*/
|
|
void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
|
|
struct regulatory_request *request)
|
|
{
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return;
|
|
|
|
hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
|
|
if (!hdr) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
if (nl80211_reg_change_event_fill(msg, request) == false)
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
rcu_read_lock();
|
|
genlmsg_multicast_allns(&nl80211_fam, msg, 0,
|
|
NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
|
|
rcu_read_unlock();
|
|
|
|
return;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
}
|
|
|
|
static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
|
|
struct net_device *netdev,
|
|
const u8 *buf, size_t len,
|
|
enum nl80211_commands cmd, gfp_t gfp,
|
|
int uapsd_queues)
|
|
{
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
|
|
msg = nlmsg_new(100 + len, gfp);
|
|
if (!msg)
|
|
return;
|
|
|
|
hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
|
|
if (!hdr) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
|
|
nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
|
|
nla_put(msg, NL80211_ATTR_FRAME, len, buf))
|
|
goto nla_put_failure;
|
|
|
|
if (uapsd_queues >= 0) {
|
|
struct nlattr *nla_wmm =
|
|
nla_nest_start(msg, NL80211_ATTR_STA_WME);
|
|
if (!nla_wmm)
|
|
goto nla_put_failure;
|
|
|
|
if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
|
|
uapsd_queues))
|
|
goto nla_put_failure;
|
|
|
|
nla_nest_end(msg, nla_wmm);
|
|
}
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
|
|
NL80211_MCGRP_MLME, gfp);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
}
|
|
|
|
void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
|
|
struct net_device *netdev, const u8 *buf,
|
|
size_t len, gfp_t gfp)
|
|
{
|
|
nl80211_send_mlme_event(rdev, netdev, buf, len,
|
|
NL80211_CMD_AUTHENTICATE, gfp, -1);
|
|
}
|
|
|
|
void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
|
|
struct net_device *netdev, const u8 *buf,
|
|
size_t len, gfp_t gfp, int uapsd_queues)
|
|
{
|
|
nl80211_send_mlme_event(rdev, netdev, buf, len,
|
|
NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
|
|
}
|
|
|
|
void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
|
|
struct net_device *netdev, const u8 *buf,
|
|
size_t len, gfp_t gfp)
|
|
{
|
|
nl80211_send_mlme_event(rdev, netdev, buf, len,
|
|
NL80211_CMD_DEAUTHENTICATE, gfp, -1);
|
|
}
|
|
|
|
void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
|
|
struct net_device *netdev, const u8 *buf,
|
|
size_t len, gfp_t gfp)
|
|
{
|
|
nl80211_send_mlme_event(rdev, netdev, buf, len,
|
|
NL80211_CMD_DISASSOCIATE, gfp, -1);
|
|
}
|
|
|
|
void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
|
|
size_t len)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
|
|
const struct ieee80211_mgmt *mgmt = (void *)buf;
|
|
u32 cmd;
|
|
|
|
if (WARN_ON(len < 2))
|
|
return;
|
|
|
|
if (ieee80211_is_deauth(mgmt->frame_control))
|
|
cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
|
|
else
|
|
cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
|
|
|
|
trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
|
|
nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
|
|
|
|
static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
|
|
struct net_device *netdev, int cmd,
|
|
const u8 *addr, gfp_t gfp)
|
|
{
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
|
|
if (!msg)
|
|
return;
|
|
|
|
hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
|
|
if (!hdr) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
|
|
nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
|
|
nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
|
|
nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
|
|
NL80211_MCGRP_MLME, gfp);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
}
|
|
|
|
void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
|
|
struct net_device *netdev, const u8 *addr,
|
|
gfp_t gfp)
|
|
{
|
|
nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
|
|
addr, gfp);
|
|
}
|
|
|
|
void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
|
|
struct net_device *netdev, const u8 *addr,
|
|
gfp_t gfp)
|
|
{
|
|
nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
|
|
addr, gfp);
|
|
}
|
|
|
|
void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
|
|
struct net_device *netdev,
|
|
struct cfg80211_connect_resp_params *cr,
|
|
gfp_t gfp)
|
|
{
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
|
|
msg = nlmsg_new(100 + cr->req_ie_len + cr->resp_ie_len +
|
|
cr->fils_kek_len + cr->pmk_len +
|
|
(cr->pmkid ? WLAN_PMKID_LEN : 0), gfp);
|
|
if (!msg)
|
|
return;
|
|
|
|
hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
|
|
if (!hdr) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
|
|
nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
|
|
(cr->bssid &&
|
|
nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, cr->bssid)) ||
|
|
nla_put_u16(msg, NL80211_ATTR_STATUS_CODE,
|
|
cr->status < 0 ? WLAN_STATUS_UNSPECIFIED_FAILURE :
|
|
cr->status) ||
|
|
(cr->status < 0 &&
|
|
(nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
|
|
nla_put_u32(msg, NL80211_ATTR_TIMEOUT_REASON,
|
|
cr->timeout_reason))) ||
|
|
(cr->req_ie &&
|
|
nla_put(msg, NL80211_ATTR_REQ_IE, cr->req_ie_len, cr->req_ie)) ||
|
|
(cr->resp_ie &&
|
|
nla_put(msg, NL80211_ATTR_RESP_IE, cr->resp_ie_len,
|
|
cr->resp_ie)) ||
|
|
(cr->update_erp_next_seq_num &&
|
|
nla_put_u16(msg, NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM,
|
|
cr->fils_erp_next_seq_num)) ||
|
|
(cr->status == WLAN_STATUS_SUCCESS &&
|
|
((cr->fils_kek &&
|
|
nla_put(msg, NL80211_ATTR_FILS_KEK, cr->fils_kek_len,
|
|
cr->fils_kek)) ||
|
|
(cr->pmk &&
|
|
nla_put(msg, NL80211_ATTR_PMK, cr->pmk_len, cr->pmk)) ||
|
|
(cr->pmkid &&
|
|
nla_put(msg, NL80211_ATTR_PMKID, WLAN_PMKID_LEN, cr->pmkid)))))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
|
|
NL80211_MCGRP_MLME, gfp);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
}
|
|
|
|
void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
|
|
struct net_device *netdev,
|
|
struct cfg80211_roam_info *info, gfp_t gfp)
|
|
{
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
const u8 *bssid = info->bss ? info->bss->bssid : info->bssid;
|
|
|
|
msg = nlmsg_new(100 + info->req_ie_len + info->resp_ie_len, gfp);
|
|
if (!msg)
|
|
return;
|
|
|
|
hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
|
|
if (!hdr) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
|
|
nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
|
|
nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
|
|
(info->req_ie &&
|
|
nla_put(msg, NL80211_ATTR_REQ_IE, info->req_ie_len,
|
|
info->req_ie)) ||
|
|
(info->resp_ie &&
|
|
nla_put(msg, NL80211_ATTR_RESP_IE, info->resp_ie_len,
|
|
info->resp_ie)))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
|
|
NL80211_MCGRP_MLME, gfp);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
}
|
|
|
|
void nl80211_send_port_authorized(struct cfg80211_registered_device *rdev,
|
|
struct net_device *netdev, const u8 *bssid)
|
|
{
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return;
|
|
|
|
hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PORT_AUTHORIZED);
|
|
if (!hdr) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
|
|
NL80211_MCGRP_MLME, GFP_KERNEL);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
}
|
|
|
|
void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
|
|
struct net_device *netdev, u16 reason,
|
|
const u8 *ie, size_t ie_len, bool from_ap)
|
|
{
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
|
|
msg = nlmsg_new(100 + ie_len, GFP_KERNEL);
|
|
if (!msg)
|
|
return;
|
|
|
|
hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
|
|
if (!hdr) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
|
|
nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
|
|
(reason &&
|
|
nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
|
|
(from_ap &&
|
|
nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
|
|
(ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
|
|
NL80211_MCGRP_MLME, GFP_KERNEL);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
}
|
|
|
|
void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
|
|
struct net_device *netdev, const u8 *bssid,
|
|
gfp_t gfp)
|
|
{
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
|
|
if (!msg)
|
|
return;
|
|
|
|
hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
|
|
if (!hdr) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
|
|
nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
|
|
nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
|
|
NL80211_MCGRP_MLME, gfp);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
}
|
|
|
|
void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
|
|
const u8* ie, u8 ie_len, gfp_t gfp)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
|
|
if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
|
|
return;
|
|
|
|
trace_cfg80211_notify_new_peer_candidate(dev, addr);
|
|
|
|
msg = nlmsg_new(100 + ie_len, gfp);
|
|
if (!msg)
|
|
return;
|
|
|
|
hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
|
|
if (!hdr) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
|
|
nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
|
|
nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
|
|
(ie_len && ie &&
|
|
nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
|
|
NL80211_MCGRP_MLME, gfp);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
|
|
|
|
void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
|
|
struct net_device *netdev, const u8 *addr,
|
|
enum nl80211_key_type key_type, int key_id,
|
|
const u8 *tsc, gfp_t gfp)
|
|
{
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
|
|
if (!msg)
|
|
return;
|
|
|
|
hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
|
|
if (!hdr) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
|
|
nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
|
|
(addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
|
|
nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
|
|
(key_id != -1 &&
|
|
nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
|
|
(tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
|
|
NL80211_MCGRP_MLME, gfp);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
}
|
|
|
|
void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
|
|
struct ieee80211_channel *channel_before,
|
|
struct ieee80211_channel *channel_after)
|
|
{
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
struct nlattr *nl_freq;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
|
|
if (!msg)
|
|
return;
|
|
|
|
hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
|
|
if (!hdr) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Since we are applying the beacon hint to a wiphy we know its
|
|
* wiphy_idx is valid
|
|
*/
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
|
|
goto nla_put_failure;
|
|
|
|
/* Before */
|
|
nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
|
|
if (!nl_freq)
|
|
goto nla_put_failure;
|
|
if (nl80211_msg_put_channel(msg, channel_before, false))
|
|
goto nla_put_failure;
|
|
nla_nest_end(msg, nl_freq);
|
|
|
|
/* After */
|
|
nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
|
|
if (!nl_freq)
|
|
goto nla_put_failure;
|
|
if (nl80211_msg_put_channel(msg, channel_after, false))
|
|
goto nla_put_failure;
|
|
nla_nest_end(msg, nl_freq);
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
rcu_read_lock();
|
|
genlmsg_multicast_allns(&nl80211_fam, msg, 0,
|
|
NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
|
|
rcu_read_unlock();
|
|
|
|
return;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
}
|
|
|
|
static void nl80211_send_remain_on_chan_event(
|
|
int cmd, struct cfg80211_registered_device *rdev,
|
|
struct wireless_dev *wdev, u64 cookie,
|
|
struct ieee80211_channel *chan,
|
|
unsigned int duration, gfp_t gfp)
|
|
{
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
|
|
if (!msg)
|
|
return;
|
|
|
|
hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
|
|
if (!hdr) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
|
|
(wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
|
|
wdev->netdev->ifindex)) ||
|
|
nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
|
|
NL80211_ATTR_PAD) ||
|
|
nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
|
|
nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
|
|
NL80211_CHAN_NO_HT) ||
|
|
nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
|
|
NL80211_ATTR_PAD))
|
|
goto nla_put_failure;
|
|
|
|
if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
|
|
nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
|
|
NL80211_MCGRP_MLME, gfp);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
}
|
|
|
|
void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
|
|
struct ieee80211_channel *chan,
|
|
unsigned int duration, gfp_t gfp)
|
|
{
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
|
|
|
|
trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
|
|
nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
|
|
rdev, wdev, cookie, chan,
|
|
duration, gfp);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_ready_on_channel);
|
|
|
|
void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
|
|
struct ieee80211_channel *chan,
|
|
gfp_t gfp)
|
|
{
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
|
|
|
|
trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
|
|
nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
|
|
rdev, wdev, cookie, chan, 0, gfp);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
|
|
|
|
void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
|
|
struct station_info *sinfo, gfp_t gfp)
|
|
{
|
|
struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
|
|
struct sk_buff *msg;
|
|
|
|
trace_cfg80211_new_sta(dev, mac_addr, sinfo);
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
|
|
if (!msg)
|
|
return;
|
|
|
|
if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
|
|
rdev, dev, mac_addr, sinfo) < 0) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
|
|
NL80211_MCGRP_MLME, gfp);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_new_sta);
|
|
|
|
void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
|
|
struct station_info *sinfo, gfp_t gfp)
|
|
{
|
|
struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
|
|
struct sk_buff *msg;
|
|
struct station_info empty_sinfo = {};
|
|
|
|
if (!sinfo)
|
|
sinfo = &empty_sinfo;
|
|
|
|
trace_cfg80211_del_sta(dev, mac_addr);
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
|
|
if (!msg)
|
|
return;
|
|
|
|
if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
|
|
rdev, dev, mac_addr, sinfo) < 0) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
|
|
NL80211_MCGRP_MLME, gfp);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
|
|
|
|
void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
|
|
enum nl80211_connect_failed_reason reason,
|
|
gfp_t gfp)
|
|
{
|
|
struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
|
|
msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
|
|
if (!msg)
|
|
return;
|
|
|
|
hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
|
|
if (!hdr) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
|
|
nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
|
|
nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
|
|
NL80211_MCGRP_MLME, gfp);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_conn_failed);
|
|
|
|
static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
|
|
const u8 *addr, gfp_t gfp)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
u32 nlportid = READ_ONCE(wdev->ap_unexpected_nlportid);
|
|
|
|
if (!nlportid)
|
|
return false;
|
|
|
|
msg = nlmsg_new(100, gfp);
|
|
if (!msg)
|
|
return true;
|
|
|
|
hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
|
|
if (!hdr) {
|
|
nlmsg_free(msg);
|
|
return true;
|
|
}
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
|
|
nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
|
|
nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
|
|
return true;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
return true;
|
|
}
|
|
|
|
bool cfg80211_rx_spurious_frame(struct net_device *dev,
|
|
const u8 *addr, gfp_t gfp)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
bool ret;
|
|
|
|
trace_cfg80211_rx_spurious_frame(dev, addr);
|
|
|
|
if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
|
|
wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
|
|
trace_cfg80211_return_bool(false);
|
|
return false;
|
|
}
|
|
ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
|
|
addr, gfp);
|
|
trace_cfg80211_return_bool(ret);
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
|
|
|
|
bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
|
|
const u8 *addr, gfp_t gfp)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
bool ret;
|
|
|
|
trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
|
|
|
|
if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
|
|
wdev->iftype != NL80211_IFTYPE_P2P_GO &&
|
|
wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
|
|
trace_cfg80211_return_bool(false);
|
|
return false;
|
|
}
|
|
ret = __nl80211_unexpected_frame(dev,
|
|
NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
|
|
addr, gfp);
|
|
trace_cfg80211_return_bool(ret);
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
|
|
|
|
int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
|
|
struct wireless_dev *wdev, u32 nlportid,
|
|
int freq, int sig_dbm,
|
|
const u8 *buf, size_t len, u32 flags, gfp_t gfp)
|
|
{
|
|
struct net_device *netdev = wdev->netdev;
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
|
|
msg = nlmsg_new(100 + len, gfp);
|
|
if (!msg)
|
|
return -ENOMEM;
|
|
|
|
hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
|
|
if (!hdr) {
|
|
nlmsg_free(msg);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
|
|
(netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
|
|
netdev->ifindex)) ||
|
|
nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
|
|
NL80211_ATTR_PAD) ||
|
|
nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
|
|
(sig_dbm &&
|
|
nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
|
|
nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
|
|
(flags &&
|
|
nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
return -ENOBUFS;
|
|
}
|
|
|
|
void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
|
|
const u8 *buf, size_t len, bool ack, gfp_t gfp)
|
|
{
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
|
|
struct net_device *netdev = wdev->netdev;
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
|
|
trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
|
|
|
|
msg = nlmsg_new(100 + len, gfp);
|
|
if (!msg)
|
|
return;
|
|
|
|
hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
|
|
if (!hdr) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
|
|
(netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
|
|
netdev->ifindex)) ||
|
|
nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
|
|
NL80211_ATTR_PAD) ||
|
|
nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
|
|
nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
|
|
NL80211_ATTR_PAD) ||
|
|
(ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
|
|
NL80211_MCGRP_MLME, gfp);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
|
|
|
|
static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
|
|
const char *mac, gfp_t gfp)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
|
|
struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
|
|
void **cb;
|
|
|
|
if (!msg)
|
|
return NULL;
|
|
|
|
cb = (void **)msg->cb;
|
|
|
|
cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
|
|
if (!cb[0]) {
|
|
nlmsg_free(msg);
|
|
return NULL;
|
|
}
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
|
|
nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
|
|
goto nla_put_failure;
|
|
|
|
if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
|
|
goto nla_put_failure;
|
|
|
|
cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
|
|
if (!cb[1])
|
|
goto nla_put_failure;
|
|
|
|
cb[2] = rdev;
|
|
|
|
return msg;
|
|
nla_put_failure:
|
|
nlmsg_free(msg);
|
|
return NULL;
|
|
}
|
|
|
|
static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
|
|
{
|
|
void **cb = (void **)msg->cb;
|
|
struct cfg80211_registered_device *rdev = cb[2];
|
|
|
|
nla_nest_end(msg, cb[1]);
|
|
genlmsg_end(msg, cb[0]);
|
|
|
|
memset(msg->cb, 0, sizeof(msg->cb));
|
|
|
|
genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
|
|
NL80211_MCGRP_MLME, gfp);
|
|
}
|
|
|
|
void cfg80211_cqm_rssi_notify(struct net_device *dev,
|
|
enum nl80211_cqm_rssi_threshold_event rssi_event,
|
|
s32 rssi_level, gfp_t gfp)
|
|
{
|
|
struct sk_buff *msg;
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
|
|
|
|
trace_cfg80211_cqm_rssi_notify(dev, rssi_event, rssi_level);
|
|
|
|
if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
|
|
rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
|
|
return;
|
|
|
|
if (wdev->cqm_config) {
|
|
wdev->cqm_config->last_rssi_event_value = rssi_level;
|
|
|
|
cfg80211_cqm_rssi_update(rdev, dev);
|
|
|
|
if (rssi_level == 0)
|
|
rssi_level = wdev->cqm_config->last_rssi_event_value;
|
|
}
|
|
|
|
msg = cfg80211_prepare_cqm(dev, NULL, gfp);
|
|
if (!msg)
|
|
return;
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
|
|
rssi_event))
|
|
goto nla_put_failure;
|
|
|
|
if (rssi_level && nla_put_s32(msg, NL80211_ATTR_CQM_RSSI_LEVEL,
|
|
rssi_level))
|
|
goto nla_put_failure;
|
|
|
|
cfg80211_send_cqm(msg, gfp);
|
|
|
|
return;
|
|
|
|
nla_put_failure:
|
|
nlmsg_free(msg);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
|
|
|
|
void cfg80211_cqm_txe_notify(struct net_device *dev,
|
|
const u8 *peer, u32 num_packets,
|
|
u32 rate, u32 intvl, gfp_t gfp)
|
|
{
|
|
struct sk_buff *msg;
|
|
|
|
msg = cfg80211_prepare_cqm(dev, peer, gfp);
|
|
if (!msg)
|
|
return;
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
|
|
goto nla_put_failure;
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
|
|
goto nla_put_failure;
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
|
|
goto nla_put_failure;
|
|
|
|
cfg80211_send_cqm(msg, gfp);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
nlmsg_free(msg);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
|
|
|
|
void cfg80211_cqm_pktloss_notify(struct net_device *dev,
|
|
const u8 *peer, u32 num_packets, gfp_t gfp)
|
|
{
|
|
struct sk_buff *msg;
|
|
|
|
trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
|
|
|
|
msg = cfg80211_prepare_cqm(dev, peer, gfp);
|
|
if (!msg)
|
|
return;
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
|
|
goto nla_put_failure;
|
|
|
|
cfg80211_send_cqm(msg, gfp);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
nlmsg_free(msg);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
|
|
|
|
void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
|
|
{
|
|
struct sk_buff *msg;
|
|
|
|
msg = cfg80211_prepare_cqm(dev, NULL, gfp);
|
|
if (!msg)
|
|
return;
|
|
|
|
if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
|
|
goto nla_put_failure;
|
|
|
|
cfg80211_send_cqm(msg, gfp);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
nlmsg_free(msg);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
|
|
|
|
static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
|
|
struct net_device *netdev, const u8 *bssid,
|
|
const u8 *replay_ctr, gfp_t gfp)
|
|
{
|
|
struct sk_buff *msg;
|
|
struct nlattr *rekey_attr;
|
|
void *hdr;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
|
|
if (!msg)
|
|
return;
|
|
|
|
hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
|
|
if (!hdr) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
|
|
nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
|
|
nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
|
|
goto nla_put_failure;
|
|
|
|
rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
|
|
if (!rekey_attr)
|
|
goto nla_put_failure;
|
|
|
|
if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
|
|
NL80211_REPLAY_CTR_LEN, replay_ctr))
|
|
goto nla_put_failure;
|
|
|
|
nla_nest_end(msg, rekey_attr);
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
|
|
NL80211_MCGRP_MLME, gfp);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
}
|
|
|
|
void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
|
|
const u8 *replay_ctr, gfp_t gfp)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
|
|
|
|
trace_cfg80211_gtk_rekey_notify(dev, bssid);
|
|
nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
|
|
|
|
static void
|
|
nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
|
|
struct net_device *netdev, int index,
|
|
const u8 *bssid, bool preauth, gfp_t gfp)
|
|
{
|
|
struct sk_buff *msg;
|
|
struct nlattr *attr;
|
|
void *hdr;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
|
|
if (!msg)
|
|
return;
|
|
|
|
hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
|
|
if (!hdr) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
|
|
nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
|
|
goto nla_put_failure;
|
|
|
|
attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
|
|
if (!attr)
|
|
goto nla_put_failure;
|
|
|
|
if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
|
|
nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
|
|
(preauth &&
|
|
nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
|
|
goto nla_put_failure;
|
|
|
|
nla_nest_end(msg, attr);
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
|
|
NL80211_MCGRP_MLME, gfp);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
}
|
|
|
|
void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
|
|
const u8 *bssid, bool preauth, gfp_t gfp)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
|
|
|
|
trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
|
|
nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
|
|
|
|
static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
|
|
struct net_device *netdev,
|
|
struct cfg80211_chan_def *chandef,
|
|
gfp_t gfp,
|
|
enum nl80211_commands notif,
|
|
u8 count)
|
|
{
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
|
|
if (!msg)
|
|
return;
|
|
|
|
hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
|
|
if (!hdr) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
|
|
goto nla_put_failure;
|
|
|
|
if (nl80211_send_chandef(msg, chandef))
|
|
goto nla_put_failure;
|
|
|
|
if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
|
|
(nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
|
|
NL80211_MCGRP_MLME, gfp);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
}
|
|
|
|
void cfg80211_ch_switch_notify(struct net_device *dev,
|
|
struct cfg80211_chan_def *chandef)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
|
|
|
|
ASSERT_WDEV_LOCK(wdev);
|
|
|
|
trace_cfg80211_ch_switch_notify(dev, chandef);
|
|
|
|
wdev->chandef = *chandef;
|
|
wdev->preset_chandef = *chandef;
|
|
nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
|
|
NL80211_CMD_CH_SWITCH_NOTIFY, 0);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_ch_switch_notify);
|
|
|
|
void cfg80211_ch_switch_started_notify(struct net_device *dev,
|
|
struct cfg80211_chan_def *chandef,
|
|
u8 count)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
|
|
|
|
trace_cfg80211_ch_switch_started_notify(dev, chandef);
|
|
|
|
nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
|
|
NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
|
|
|
|
void
|
|
nl80211_radar_notify(struct cfg80211_registered_device *rdev,
|
|
const struct cfg80211_chan_def *chandef,
|
|
enum nl80211_radar_event event,
|
|
struct net_device *netdev, gfp_t gfp)
|
|
{
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
|
|
if (!msg)
|
|
return;
|
|
|
|
hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
|
|
if (!hdr) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
|
|
goto nla_put_failure;
|
|
|
|
/* NOP and radar events don't need a netdev parameter */
|
|
if (netdev) {
|
|
struct wireless_dev *wdev = netdev->ieee80211_ptr;
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
|
|
nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
|
|
NL80211_ATTR_PAD))
|
|
goto nla_put_failure;
|
|
}
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
|
|
goto nla_put_failure;
|
|
|
|
if (nl80211_send_chandef(msg, chandef))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
|
|
NL80211_MCGRP_MLME, gfp);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
}
|
|
|
|
void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
|
|
u64 cookie, bool acked, gfp_t gfp)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
|
|
trace_cfg80211_probe_status(dev, addr, cookie, acked);
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
|
|
|
|
if (!msg)
|
|
return;
|
|
|
|
hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
|
|
if (!hdr) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
|
|
nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
|
|
nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
|
|
nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
|
|
NL80211_ATTR_PAD) ||
|
|
(acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
|
|
NL80211_MCGRP_MLME, gfp);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_probe_status);
|
|
|
|
void cfg80211_report_obss_beacon(struct wiphy *wiphy,
|
|
const u8 *frame, size_t len,
|
|
int freq, int sig_dbm)
|
|
{
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
struct cfg80211_beacon_registration *reg;
|
|
|
|
trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
|
|
|
|
spin_lock_bh(&rdev->beacon_registrations_lock);
|
|
list_for_each_entry(reg, &rdev->beacon_registrations, list) {
|
|
msg = nlmsg_new(len + 100, GFP_ATOMIC);
|
|
if (!msg) {
|
|
spin_unlock_bh(&rdev->beacon_registrations_lock);
|
|
return;
|
|
}
|
|
|
|
hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
|
|
if (!hdr)
|
|
goto nla_put_failure;
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
|
|
(freq &&
|
|
nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
|
|
(sig_dbm &&
|
|
nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
|
|
nla_put(msg, NL80211_ATTR_FRAME, len, frame))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
|
|
}
|
|
spin_unlock_bh(&rdev->beacon_registrations_lock);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
spin_unlock_bh(&rdev->beacon_registrations_lock);
|
|
if (hdr)
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_report_obss_beacon);
|
|
|
|
#ifdef CONFIG_PM
|
|
static int cfg80211_net_detect_results(struct sk_buff *msg,
|
|
struct cfg80211_wowlan_wakeup *wakeup)
|
|
{
|
|
struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
|
|
struct nlattr *nl_results, *nl_match, *nl_freqs;
|
|
int i, j;
|
|
|
|
nl_results = nla_nest_start(
|
|
msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
|
|
if (!nl_results)
|
|
return -EMSGSIZE;
|
|
|
|
for (i = 0; i < nd->n_matches; i++) {
|
|
struct cfg80211_wowlan_nd_match *match = nd->matches[i];
|
|
|
|
nl_match = nla_nest_start(msg, i);
|
|
if (!nl_match)
|
|
break;
|
|
|
|
/* The SSID attribute is optional in nl80211, but for
|
|
* simplicity reasons it's always present in the
|
|
* cfg80211 structure. If a driver can't pass the
|
|
* SSID, that needs to be changed. A zero length SSID
|
|
* is still a valid SSID (wildcard), so it cannot be
|
|
* used for this purpose.
|
|
*/
|
|
if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
|
|
match->ssid.ssid)) {
|
|
nla_nest_cancel(msg, nl_match);
|
|
goto out;
|
|
}
|
|
|
|
if (match->n_channels) {
|
|
nl_freqs = nla_nest_start(
|
|
msg, NL80211_ATTR_SCAN_FREQUENCIES);
|
|
if (!nl_freqs) {
|
|
nla_nest_cancel(msg, nl_match);
|
|
goto out;
|
|
}
|
|
|
|
for (j = 0; j < match->n_channels; j++) {
|
|
if (nla_put_u32(msg, j, match->channels[j])) {
|
|
nla_nest_cancel(msg, nl_freqs);
|
|
nla_nest_cancel(msg, nl_match);
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
nla_nest_end(msg, nl_freqs);
|
|
}
|
|
|
|
nla_nest_end(msg, nl_match);
|
|
}
|
|
|
|
out:
|
|
nla_nest_end(msg, nl_results);
|
|
return 0;
|
|
}
|
|
|
|
void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
|
|
struct cfg80211_wowlan_wakeup *wakeup,
|
|
gfp_t gfp)
|
|
{
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
int size = 200;
|
|
|
|
trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
|
|
|
|
if (wakeup)
|
|
size += wakeup->packet_present_len;
|
|
|
|
msg = nlmsg_new(size, gfp);
|
|
if (!msg)
|
|
return;
|
|
|
|
hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
|
|
if (!hdr)
|
|
goto free_msg;
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
|
|
nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
|
|
NL80211_ATTR_PAD))
|
|
goto free_msg;
|
|
|
|
if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
|
|
wdev->netdev->ifindex))
|
|
goto free_msg;
|
|
|
|
if (wakeup) {
|
|
struct nlattr *reasons;
|
|
|
|
reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
|
|
if (!reasons)
|
|
goto free_msg;
|
|
|
|
if (wakeup->disconnect &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
|
|
goto free_msg;
|
|
if (wakeup->magic_pkt &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
|
|
goto free_msg;
|
|
if (wakeup->gtk_rekey_failure &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
|
|
goto free_msg;
|
|
if (wakeup->eap_identity_req &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
|
|
goto free_msg;
|
|
if (wakeup->four_way_handshake &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
|
|
goto free_msg;
|
|
if (wakeup->rfkill_release &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
|
|
goto free_msg;
|
|
|
|
if (wakeup->pattern_idx >= 0 &&
|
|
nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
|
|
wakeup->pattern_idx))
|
|
goto free_msg;
|
|
|
|
if (wakeup->tcp_match &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
|
|
goto free_msg;
|
|
|
|
if (wakeup->tcp_connlost &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
|
|
goto free_msg;
|
|
|
|
if (wakeup->tcp_nomoretokens &&
|
|
nla_put_flag(msg,
|
|
NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
|
|
goto free_msg;
|
|
|
|
if (wakeup->packet) {
|
|
u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
|
|
u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
|
|
|
|
if (!wakeup->packet_80211) {
|
|
pkt_attr =
|
|
NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
|
|
len_attr =
|
|
NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
|
|
}
|
|
|
|
if (wakeup->packet_len &&
|
|
nla_put_u32(msg, len_attr, wakeup->packet_len))
|
|
goto free_msg;
|
|
|
|
if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
|
|
wakeup->packet))
|
|
goto free_msg;
|
|
}
|
|
|
|
if (wakeup->net_detect &&
|
|
cfg80211_net_detect_results(msg, wakeup))
|
|
goto free_msg;
|
|
|
|
nla_nest_end(msg, reasons);
|
|
}
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
|
|
NL80211_MCGRP_MLME, gfp);
|
|
return;
|
|
|
|
free_msg:
|
|
nlmsg_free(msg);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
|
|
#endif
|
|
|
|
void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
|
|
enum nl80211_tdls_operation oper,
|
|
u16 reason_code, gfp_t gfp)
|
|
{
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
|
|
trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
|
|
reason_code);
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
|
|
if (!msg)
|
|
return;
|
|
|
|
hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
|
|
if (!hdr) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
|
|
nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
|
|
nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
|
|
nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
|
|
(reason_code > 0 &&
|
|
nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
|
|
NL80211_MCGRP_MLME, gfp);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_tdls_oper_request);
|
|
|
|
static int nl80211_netlink_notify(struct notifier_block * nb,
|
|
unsigned long state,
|
|
void *_notify)
|
|
{
|
|
struct netlink_notify *notify = _notify;
|
|
struct cfg80211_registered_device *rdev;
|
|
struct wireless_dev *wdev;
|
|
struct cfg80211_beacon_registration *reg, *tmp;
|
|
|
|
if (state != NETLINK_URELEASE || notify->protocol != NETLINK_GENERIC)
|
|
return NOTIFY_DONE;
|
|
|
|
rcu_read_lock();
|
|
|
|
list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
|
|
struct cfg80211_sched_scan_request *sched_scan_req;
|
|
|
|
list_for_each_entry_rcu(sched_scan_req,
|
|
&rdev->sched_scan_req_list,
|
|
list) {
|
|
if (sched_scan_req->owner_nlportid == notify->portid) {
|
|
sched_scan_req->nl_owner_dead = true;
|
|
schedule_work(&rdev->sched_scan_stop_wk);
|
|
}
|
|
}
|
|
|
|
list_for_each_entry_rcu(wdev, &rdev->wiphy.wdev_list, list) {
|
|
cfg80211_mlme_unregister_socket(wdev, notify->portid);
|
|
|
|
if (wdev->owner_nlportid == notify->portid) {
|
|
wdev->nl_owner_dead = true;
|
|
schedule_work(&rdev->destroy_work);
|
|
} else if (wdev->conn_owner_nlportid == notify->portid) {
|
|
schedule_work(&wdev->disconnect_wk);
|
|
}
|
|
}
|
|
|
|
spin_lock_bh(&rdev->beacon_registrations_lock);
|
|
list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
|
|
list) {
|
|
if (reg->nlportid == notify->portid) {
|
|
list_del(®->list);
|
|
kfree(reg);
|
|
break;
|
|
}
|
|
}
|
|
spin_unlock_bh(&rdev->beacon_registrations_lock);
|
|
}
|
|
|
|
rcu_read_unlock();
|
|
|
|
/*
|
|
* It is possible that the user space process that is controlling the
|
|
* indoor setting disappeared, so notify the regulatory core.
|
|
*/
|
|
regulatory_netlink_notify(notify->portid);
|
|
return NOTIFY_OK;
|
|
}
|
|
|
|
static struct notifier_block nl80211_netlink_notifier = {
|
|
.notifier_call = nl80211_netlink_notify,
|
|
};
|
|
|
|
void cfg80211_ft_event(struct net_device *netdev,
|
|
struct cfg80211_ft_event_params *ft_event)
|
|
{
|
|
struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
|
|
trace_cfg80211_ft_event(wiphy, netdev, ft_event);
|
|
|
|
if (!ft_event->target_ap)
|
|
return;
|
|
|
|
msg = nlmsg_new(100 + ft_event->ric_ies_len, GFP_KERNEL);
|
|
if (!msg)
|
|
return;
|
|
|
|
hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
|
|
if (!hdr)
|
|
goto out;
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
|
|
nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
|
|
nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
|
|
goto out;
|
|
|
|
if (ft_event->ies &&
|
|
nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
|
|
goto out;
|
|
if (ft_event->ric_ies &&
|
|
nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
|
|
ft_event->ric_ies))
|
|
goto out;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
|
|
NL80211_MCGRP_MLME, GFP_KERNEL);
|
|
return;
|
|
out:
|
|
nlmsg_free(msg);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_ft_event);
|
|
|
|
void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
|
|
{
|
|
struct cfg80211_registered_device *rdev;
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
u32 nlportid;
|
|
|
|
rdev = wiphy_to_rdev(wdev->wiphy);
|
|
if (!rdev->crit_proto_nlportid)
|
|
return;
|
|
|
|
nlportid = rdev->crit_proto_nlportid;
|
|
rdev->crit_proto_nlportid = 0;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
|
|
if (!msg)
|
|
return;
|
|
|
|
hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
|
|
if (!hdr)
|
|
goto nla_put_failure;
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
|
|
nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
|
|
NL80211_ATTR_PAD))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
if (hdr)
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
|
|
|
|
void nl80211_send_ap_stopped(struct wireless_dev *wdev)
|
|
{
|
|
struct wiphy *wiphy = wdev->wiphy;
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return;
|
|
|
|
hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
|
|
if (!hdr)
|
|
goto out;
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
|
|
nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
|
|
nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
|
|
NL80211_ATTR_PAD))
|
|
goto out;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
|
|
NL80211_MCGRP_MLME, GFP_KERNEL);
|
|
return;
|
|
out:
|
|
nlmsg_free(msg);
|
|
}
|
|
|
|
/* initialisation/exit functions */
|
|
|
|
int __init nl80211_init(void)
|
|
{
|
|
int err;
|
|
|
|
err = genl_register_family(&nl80211_fam);
|
|
if (err)
|
|
return err;
|
|
|
|
err = netlink_register_notifier(&nl80211_netlink_notifier);
|
|
if (err)
|
|
goto err_out;
|
|
|
|
return 0;
|
|
err_out:
|
|
genl_unregister_family(&nl80211_fam);
|
|
return err;
|
|
}
|
|
|
|
void nl80211_exit(void)
|
|
{
|
|
netlink_unregister_notifier(&nl80211_netlink_notifier);
|
|
genl_unregister_family(&nl80211_fam);
|
|
}
|