![Wei Yongjun](/assets/img/avatar_default.png)
connkeys is malloced in nl80211_parse_connkeys() and should be freed in the error handling case, otherwise it will cause memory leak. spatch with a semantic match is used to found this problem. (http://coccinelle.lip6.fr/) Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
8810 lines
230 KiB
C
8810 lines
230 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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*/
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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/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 "core.h"
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#include "nl80211.h"
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#include "reg.h"
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static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type);
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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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static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
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struct genl_info *info);
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static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
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struct genl_info *info);
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/* the netlink family */
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static struct genl_family nl80211_fam = {
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.id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
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.name = "nl80211", /* have users key off the name instead */
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.hdrsize = 0, /* no private header */
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.version = 1, /* no particular meaning now */
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.maxattr = NL80211_ATTR_MAX,
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.netnsok = true,
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.pre_doit = nl80211_pre_doit,
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.post_doit = nl80211_post_doit,
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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_cfg80211_lock();
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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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mutex_lock(&rdev->devlist_mtx);
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list_for_each_entry(wdev, &rdev->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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mutex_unlock(&rdev->devlist_mtx);
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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_cfg80211_lock();
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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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mutex_lock(&tmp->devlist_mtx);
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list_for_each_entry(wdev, &tmp->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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mutex_unlock(&tmp->devlist_mtx);
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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_dev(
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netdev->ieee80211_ptr->wiphy);
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else
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tmp = NULL;
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dev_put(netdev);
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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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* If successful, it returns non-NULL and also locks
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* the driver's mutex!
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*
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* This means that you need to call cfg80211_unlock_rdev()
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* before being allowed to acquire &cfg80211_mutex!
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*
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* This is necessary because we need to lock the global
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* mutex to get an item off the list safely, and then
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* we lock the rdev mutex so it doesn't go away under us.
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*
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* We don't want to keep cfg80211_mutex locked
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* for all the time in order to allow requests on
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* other interfaces to go through at the same time.
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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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struct cfg80211_registered_device *rdev;
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mutex_lock(&cfg80211_mutex);
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rdev = __cfg80211_rdev_from_attrs(netns, info->attrs);
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/* if it is not an error we grab the lock on
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* it to assure it won't be going away while
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* we operate on it */
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if (!IS_ERR(rdev))
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mutex_lock(&rdev->mtx);
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mutex_unlock(&cfg80211_mutex);
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return rdev;
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}
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/* policy for the attributes */
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static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
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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_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_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] = { .type = NLA_BINARY,
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.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_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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};
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/* policy for the key attributes */
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static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
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[NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
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[NL80211_KEY_IDX] = { .type = NLA_U8 },
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[NL80211_KEY_CIPHER] = { .type = NLA_U32 },
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[NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
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[NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
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[NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
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[NL80211_KEY_TYPE] = { .type = NLA_U32 },
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[NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
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};
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/* policy for the key default flags */
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static const struct nla_policy
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nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
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[NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
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[NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
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};
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/* policy for WoWLAN attributes */
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static const struct nla_policy
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nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
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[NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
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[NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
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[NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
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[NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
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[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 },
|
|
};
|
|
|
|
/* 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_RSSI] = { .type = NLA_U32 },
|
|
};
|
|
|
|
/* ifidx get helper */
|
|
static int nl80211_get_ifidx(struct netlink_callback *cb)
|
|
{
|
|
int res;
|
|
|
|
res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
|
|
nl80211_fam.attrbuf, nl80211_fam.maxattr,
|
|
nl80211_policy);
|
|
if (res)
|
|
return res;
|
|
|
|
if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
|
|
return -EINVAL;
|
|
|
|
res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
|
|
if (!res)
|
|
return -EINVAL;
|
|
return res;
|
|
}
|
|
|
|
static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
|
|
struct netlink_callback *cb,
|
|
struct cfg80211_registered_device **rdev,
|
|
struct net_device **dev)
|
|
{
|
|
int ifidx = cb->args[0];
|
|
int err;
|
|
|
|
if (!ifidx)
|
|
ifidx = nl80211_get_ifidx(cb);
|
|
if (ifidx < 0)
|
|
return ifidx;
|
|
|
|
cb->args[0] = ifidx;
|
|
|
|
rtnl_lock();
|
|
|
|
*dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
|
|
if (!*dev) {
|
|
err = -ENODEV;
|
|
goto out_rtnl;
|
|
}
|
|
|
|
*rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
|
|
if (IS_ERR(*rdev)) {
|
|
err = PTR_ERR(*rdev);
|
|
goto out_rtnl;
|
|
}
|
|
|
|
return 0;
|
|
out_rtnl:
|
|
rtnl_unlock();
|
|
return err;
|
|
}
|
|
|
|
static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
|
|
{
|
|
cfg80211_unlock_rdev(rdev);
|
|
rtnl_unlock();
|
|
}
|
|
|
|
/* 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 pid, u32 seq,
|
|
int flags, u8 cmd)
|
|
{
|
|
/* since there is no private header just add the generic one */
|
|
return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
|
|
}
|
|
|
|
static int nl80211_msg_put_channel(struct sk_buff *msg,
|
|
struct ieee80211_channel *chan)
|
|
{
|
|
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_PASSIVE_SCAN) &&
|
|
nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
|
|
goto nla_put_failure;
|
|
if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
|
|
nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
|
|
goto nla_put_failure;
|
|
if ((chan->flags & IEEE80211_CHAN_RADAR) &&
|
|
nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
|
|
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 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);
|
|
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 -EINVAL;
|
|
}
|
|
|
|
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);
|
|
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)
|
|
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);
|
|
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->attrs[NL80211_ATTR_KEY], k);
|
|
else
|
|
err = nl80211_parse_key_old(info, k);
|
|
|
|
if (err)
|
|
return err;
|
|
|
|
if (k->def && k->defmgmt)
|
|
return -EINVAL;
|
|
|
|
if (k->defmgmt) {
|
|
if (k->def_uni || !k->def_multi)
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (k->idx != -1) {
|
|
if (k->defmgmt) {
|
|
if (k->idx < 4 || k->idx > 5)
|
|
return -EINVAL;
|
|
} else if (k->def) {
|
|
if (k->idx < 0 || k->idx > 3)
|
|
return -EINVAL;
|
|
} else {
|
|
if (k->idx < 0 || k->idx > 5)
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct cfg80211_cached_keys *
|
|
nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
|
|
struct nlattr *keys)
|
|
{
|
|
struct key_parse parse;
|
|
struct nlattr *key;
|
|
struct cfg80211_cached_keys *result;
|
|
int rem, err, def = 0;
|
|
|
|
result = kzalloc(sizeof(*result), GFP_KERNEL);
|
|
if (!result)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
result->def = -1;
|
|
result->defmgmt = -1;
|
|
|
|
nla_for_each_nested(key, keys, rem) {
|
|
memset(&parse, 0, sizeof(parse));
|
|
parse.idx = -1;
|
|
|
|
err = nl80211_parse_key_new(key, &parse);
|
|
if (err)
|
|
goto error;
|
|
err = -EINVAL;
|
|
if (!parse.p.key)
|
|
goto error;
|
|
if (parse.idx < 0 || parse.idx > 4)
|
|
goto error;
|
|
if (parse.def) {
|
|
if (def)
|
|
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;
|
|
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);
|
|
}
|
|
|
|
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:
|
|
if (!wdev->current_bss)
|
|
return -ENOLINK;
|
|
break;
|
|
case NL80211_IFTYPE_STATION:
|
|
case NL80211_IFTYPE_P2P_CLIENT:
|
|
if (wdev->sme_state != CFG80211_SME_CONNECTED)
|
|
return -ENOLINK;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
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)
|
|
{
|
|
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;
|
|
|
|
nla_nest_end(msg, nl_combi);
|
|
}
|
|
|
|
nla_nest_end(msg, nl_combis);
|
|
|
|
return 0;
|
|
nla_put_failure:
|
|
return -ENOBUFS;
|
|
}
|
|
|
|
static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
|
|
struct cfg80211_registered_device *dev)
|
|
{
|
|
void *hdr;
|
|
struct nlattr *nl_bands, *nl_band;
|
|
struct nlattr *nl_freqs, *nl_freq;
|
|
struct nlattr *nl_rates, *nl_rate;
|
|
struct nlattr *nl_cmds;
|
|
enum ieee80211_band band;
|
|
struct ieee80211_channel *chan;
|
|
struct ieee80211_rate *rate;
|
|
int i;
|
|
const struct ieee80211_txrx_stypes *mgmt_stypes =
|
|
dev->wiphy.mgmt_stypes;
|
|
|
|
hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
|
|
if (!hdr)
|
|
return -1;
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
|
|
nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)) ||
|
|
nla_put_u32(msg, NL80211_ATTR_GENERATION,
|
|
cfg80211_rdev_list_generation) ||
|
|
nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
|
|
dev->wiphy.retry_short) ||
|
|
nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
|
|
dev->wiphy.retry_long) ||
|
|
nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
|
|
dev->wiphy.frag_threshold) ||
|
|
nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
|
|
dev->wiphy.rts_threshold) ||
|
|
nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
|
|
dev->wiphy.coverage_class) ||
|
|
nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
|
|
dev->wiphy.max_scan_ssids) ||
|
|
nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
|
|
dev->wiphy.max_sched_scan_ssids) ||
|
|
nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
|
|
dev->wiphy.max_scan_ie_len) ||
|
|
nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
|
|
dev->wiphy.max_sched_scan_ie_len) ||
|
|
nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
|
|
dev->wiphy.max_match_sets))
|
|
goto nla_put_failure;
|
|
|
|
if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
|
|
nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
|
|
goto nla_put_failure;
|
|
if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
|
|
nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
|
|
goto nla_put_failure;
|
|
if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
|
|
nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
|
|
goto nla_put_failure;
|
|
if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
|
|
nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
|
|
goto nla_put_failure;
|
|
if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
|
|
nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
|
|
goto nla_put_failure;
|
|
if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
|
|
nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
|
|
goto nla_put_failure;
|
|
|
|
if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
|
|
sizeof(u32) * dev->wiphy.n_cipher_suites,
|
|
dev->wiphy.cipher_suites))
|
|
goto nla_put_failure;
|
|
|
|
if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
|
|
dev->wiphy.max_num_pmkids))
|
|
goto nla_put_failure;
|
|
|
|
if ((dev->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,
|
|
dev->wiphy.available_antennas_tx) ||
|
|
nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
|
|
dev->wiphy.available_antennas_rx))
|
|
goto nla_put_failure;
|
|
|
|
if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
|
|
nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
|
|
dev->wiphy.probe_resp_offload))
|
|
goto nla_put_failure;
|
|
|
|
if ((dev->wiphy.available_antennas_tx ||
|
|
dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
|
|
u32 tx_ant = 0, rx_ant = 0;
|
|
int res;
|
|
res = dev->ops->get_antenna(&dev->wiphy, &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;
|
|
}
|
|
}
|
|
|
|
if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
|
|
dev->wiphy.interface_modes))
|
|
goto nla_put_failure;
|
|
|
|
nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
|
|
if (!nl_bands)
|
|
goto nla_put_failure;
|
|
|
|
for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
|
|
if (!dev->wiphy.bands[band])
|
|
continue;
|
|
|
|
nl_band = nla_nest_start(msg, band);
|
|
if (!nl_band)
|
|
goto nla_put_failure;
|
|
|
|
/* add HT info */
|
|
if (dev->wiphy.bands[band]->ht_cap.ht_supported &&
|
|
(nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
|
|
sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
|
|
&dev->wiphy.bands[band]->ht_cap.mcs) ||
|
|
nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
|
|
dev->wiphy.bands[band]->ht_cap.cap) ||
|
|
nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
|
|
dev->wiphy.bands[band]->ht_cap.ampdu_factor) ||
|
|
nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
|
|
dev->wiphy.bands[band]->ht_cap.ampdu_density)))
|
|
goto nla_put_failure;
|
|
|
|
/* add VHT info */
|
|
if (dev->wiphy.bands[band]->vht_cap.vht_supported &&
|
|
(nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
|
|
sizeof(dev->wiphy.bands[band]->vht_cap.vht_mcs),
|
|
&dev->wiphy.bands[band]->vht_cap.vht_mcs) ||
|
|
nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
|
|
dev->wiphy.bands[band]->vht_cap.cap)))
|
|
goto nla_put_failure;
|
|
|
|
/* add frequencies */
|
|
nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
|
|
if (!nl_freqs)
|
|
goto nla_put_failure;
|
|
|
|
for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
|
|
nl_freq = nla_nest_start(msg, i);
|
|
if (!nl_freq)
|
|
goto nla_put_failure;
|
|
|
|
chan = &dev->wiphy.bands[band]->channels[i];
|
|
|
|
if (nl80211_msg_put_channel(msg, chan))
|
|
goto nla_put_failure;
|
|
|
|
nla_nest_end(msg, nl_freq);
|
|
}
|
|
|
|
nla_nest_end(msg, nl_freqs);
|
|
|
|
/* add bitrates */
|
|
nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
|
|
if (!nl_rates)
|
|
goto nla_put_failure;
|
|
|
|
for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
|
|
nl_rate = nla_nest_start(msg, i);
|
|
if (!nl_rate)
|
|
goto nla_put_failure;
|
|
|
|
rate = &dev->wiphy.bands[band]->bitrates[i];
|
|
if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
|
|
rate->bitrate))
|
|
goto nla_put_failure;
|
|
if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
|
|
nla_put_flag(msg,
|
|
NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
|
|
goto nla_put_failure;
|
|
|
|
nla_nest_end(msg, nl_rate);
|
|
}
|
|
|
|
nla_nest_end(msg, nl_rates);
|
|
|
|
nla_nest_end(msg, nl_band);
|
|
}
|
|
nla_nest_end(msg, nl_bands);
|
|
|
|
nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
|
|
if (!nl_cmds)
|
|
goto nla_put_failure;
|
|
|
|
i = 0;
|
|
#define CMD(op, n) \
|
|
do { \
|
|
if (dev->ops->op) { \
|
|
i++; \
|
|
if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
|
|
goto nla_put_failure; \
|
|
} \
|
|
} while (0)
|
|
|
|
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 (dev->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 (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
|
|
i++;
|
|
if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
|
|
goto nla_put_failure;
|
|
}
|
|
if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
|
|
dev->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 (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
|
|
CMD(tdls_mgmt, TDLS_MGMT);
|
|
CMD(tdls_oper, TDLS_OPER);
|
|
}
|
|
if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
|
|
CMD(sched_scan_start, START_SCHED_SCAN);
|
|
CMD(probe_client, PROBE_CLIENT);
|
|
CMD(set_noack_map, SET_NOACK_MAP);
|
|
if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
|
|
i++;
|
|
if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
|
|
goto nla_put_failure;
|
|
}
|
|
|
|
#ifdef CONFIG_NL80211_TESTMODE
|
|
CMD(testmode_cmd, TESTMODE);
|
|
#endif
|
|
|
|
#undef CMD
|
|
|
|
if (dev->ops->connect || dev->ops->auth) {
|
|
i++;
|
|
if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
|
|
goto nla_put_failure;
|
|
}
|
|
|
|
if (dev->ops->disconnect || dev->ops->deauth) {
|
|
i++;
|
|
if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
|
|
goto nla_put_failure;
|
|
}
|
|
|
|
nla_nest_end(msg, nl_cmds);
|
|
|
|
if (dev->ops->remain_on_channel &&
|
|
(dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
|
|
nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
|
|
dev->wiphy.max_remain_on_channel_duration))
|
|
goto nla_put_failure;
|
|
|
|
if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
|
|
nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
|
|
goto nla_put_failure;
|
|
|
|
if (mgmt_stypes) {
|
|
u16 stypes;
|
|
struct nlattr *nl_ftypes, *nl_ifs;
|
|
enum nl80211_iftype ift;
|
|
|
|
nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
|
|
if (!nl_ifs)
|
|
goto nla_put_failure;
|
|
|
|
for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
|
|
nl_ftypes = nla_nest_start(msg, ift);
|
|
if (!nl_ftypes)
|
|
goto nla_put_failure;
|
|
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))
|
|
goto nla_put_failure;
|
|
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)
|
|
goto nla_put_failure;
|
|
|
|
for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
|
|
nl_ftypes = nla_nest_start(msg, ift);
|
|
if (!nl_ftypes)
|
|
goto nla_put_failure;
|
|
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))
|
|
goto nla_put_failure;
|
|
stypes >>= 1;
|
|
i++;
|
|
}
|
|
nla_nest_end(msg, nl_ftypes);
|
|
}
|
|
nla_nest_end(msg, nl_ifs);
|
|
}
|
|
|
|
#ifdef CONFIG_PM
|
|
if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
|
|
struct nlattr *nl_wowlan;
|
|
|
|
nl_wowlan = nla_nest_start(msg,
|
|
NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
|
|
if (!nl_wowlan)
|
|
goto nla_put_failure;
|
|
|
|
if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
|
|
((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
|
|
((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
|
|
((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
|
|
((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
|
|
((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
|
|
((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
|
|
((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
|
|
goto nla_put_failure;
|
|
if (dev->wiphy.wowlan.n_patterns) {
|
|
struct nl80211_wowlan_pattern_support pat = {
|
|
.max_patterns = dev->wiphy.wowlan.n_patterns,
|
|
.min_pattern_len =
|
|
dev->wiphy.wowlan.pattern_min_len,
|
|
.max_pattern_len =
|
|
dev->wiphy.wowlan.pattern_max_len,
|
|
};
|
|
if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
|
|
sizeof(pat), &pat))
|
|
goto nla_put_failure;
|
|
}
|
|
|
|
nla_nest_end(msg, nl_wowlan);
|
|
}
|
|
#endif
|
|
|
|
if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
|
|
dev->wiphy.software_iftypes))
|
|
goto nla_put_failure;
|
|
|
|
if (nl80211_put_iface_combinations(&dev->wiphy, msg))
|
|
goto nla_put_failure;
|
|
|
|
if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
|
|
nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
|
|
dev->wiphy.ap_sme_capa))
|
|
goto nla_put_failure;
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS,
|
|
dev->wiphy.features))
|
|
goto nla_put_failure;
|
|
|
|
if (dev->wiphy.ht_capa_mod_mask &&
|
|
nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
|
|
sizeof(*dev->wiphy.ht_capa_mod_mask),
|
|
dev->wiphy.ht_capa_mod_mask))
|
|
goto nla_put_failure;
|
|
|
|
return genlmsg_end(msg, hdr);
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
|
|
{
|
|
int idx = 0;
|
|
int start = cb->args[0];
|
|
struct cfg80211_registered_device *dev;
|
|
|
|
mutex_lock(&cfg80211_mutex);
|
|
list_for_each_entry(dev, &cfg80211_rdev_list, list) {
|
|
if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
|
|
continue;
|
|
if (++idx <= start)
|
|
continue;
|
|
if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
|
|
cb->nlh->nlmsg_seq, NLM_F_MULTI,
|
|
dev) < 0) {
|
|
idx--;
|
|
break;
|
|
}
|
|
}
|
|
mutex_unlock(&cfg80211_mutex);
|
|
|
|
cb->args[0] = idx;
|
|
|
|
return skb->len;
|
|
}
|
|
|
|
static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct sk_buff *msg;
|
|
struct cfg80211_registered_device *dev = info->user_ptr[0];
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return -ENOMEM;
|
|
|
|
if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 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)
|
|
{
|
|
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;
|
|
|
|
txq_params->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 (txq_params->ac >= NL80211_NUM_ACS)
|
|
return -EINVAL;
|
|
|
|
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 bool nl80211_valid_channel_type(struct genl_info *info,
|
|
enum nl80211_channel_type *channel_type)
|
|
{
|
|
enum nl80211_channel_type tmp;
|
|
|
|
if (!info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
|
|
return false;
|
|
|
|
tmp = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
|
|
if (tmp != NL80211_CHAN_NO_HT &&
|
|
tmp != NL80211_CHAN_HT20 &&
|
|
tmp != NL80211_CHAN_HT40PLUS &&
|
|
tmp != NL80211_CHAN_HT40MINUS)
|
|
return false;
|
|
|
|
if (channel_type)
|
|
*channel_type = tmp;
|
|
|
|
return true;
|
|
}
|
|
|
|
static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
|
|
struct wireless_dev *wdev,
|
|
struct genl_info *info)
|
|
{
|
|
struct ieee80211_channel *channel;
|
|
enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
|
|
u32 freq;
|
|
int result;
|
|
enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
|
|
|
|
if (wdev)
|
|
iftype = wdev->iftype;
|
|
|
|
if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
|
|
return -EINVAL;
|
|
|
|
if (!nl80211_can_set_dev_channel(wdev))
|
|
return -EOPNOTSUPP;
|
|
|
|
if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
|
|
!nl80211_valid_channel_type(info, &channel_type))
|
|
return -EINVAL;
|
|
|
|
freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
|
|
|
|
mutex_lock(&rdev->devlist_mtx);
|
|
switch (iftype) {
|
|
case NL80211_IFTYPE_AP:
|
|
case NL80211_IFTYPE_P2P_GO:
|
|
if (wdev->beacon_interval) {
|
|
result = -EBUSY;
|
|
break;
|
|
}
|
|
channel = rdev_freq_to_chan(rdev, freq, channel_type);
|
|
if (!channel || !cfg80211_can_beacon_sec_chan(&rdev->wiphy,
|
|
channel,
|
|
channel_type)) {
|
|
result = -EINVAL;
|
|
break;
|
|
}
|
|
wdev->preset_chan = channel;
|
|
wdev->preset_chantype = channel_type;
|
|
result = 0;
|
|
break;
|
|
case NL80211_IFTYPE_MESH_POINT:
|
|
result = cfg80211_set_mesh_freq(rdev, wdev, freq, channel_type);
|
|
break;
|
|
case NL80211_IFTYPE_MONITOR:
|
|
result = cfg80211_set_monitor_channel(rdev, freq, channel_type);
|
|
break;
|
|
default:
|
|
result = -EINVAL;
|
|
}
|
|
mutex_unlock(&rdev->devlist_mtx);
|
|
|
|
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->ieee80211_ptr, 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->ops->set_wds_peer(wdev->wiphy, 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;
|
|
|
|
/*
|
|
* 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!
|
|
*/
|
|
mutex_lock(&cfg80211_mutex);
|
|
|
|
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_dev(netdev->ieee80211_ptr->wiphy);
|
|
mutex_lock(&rdev->mtx);
|
|
} else
|
|
netdev = NULL;
|
|
}
|
|
|
|
if (!netdev) {
|
|
rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
|
|
info->attrs);
|
|
if (IS_ERR(rdev)) {
|
|
mutex_unlock(&cfg80211_mutex);
|
|
return PTR_ERR(rdev);
|
|
}
|
|
wdev = NULL;
|
|
netdev = NULL;
|
|
result = 0;
|
|
|
|
mutex_lock(&rdev->mtx);
|
|
} else if (nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
|
|
wdev = netdev->ieee80211_ptr;
|
|
else
|
|
wdev = NULL;
|
|
|
|
/*
|
|
* 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]));
|
|
|
|
mutex_unlock(&cfg80211_mutex);
|
|
|
|
if (result)
|
|
goto bad_res;
|
|
|
|
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) {
|
|
result = -EOPNOTSUPP;
|
|
goto bad_res;
|
|
}
|
|
|
|
if (!netdev) {
|
|
result = -EINVAL;
|
|
goto bad_res;
|
|
}
|
|
|
|
if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
|
|
netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
|
|
result = -EINVAL;
|
|
goto bad_res;
|
|
}
|
|
|
|
if (!netif_running(netdev)) {
|
|
result = -ENETDOWN;
|
|
goto bad_res;
|
|
}
|
|
|
|
nla_for_each_nested(nl_txq_params,
|
|
info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
|
|
rem_txq_params) {
|
|
nla_parse(tb, NL80211_TXQ_ATTR_MAX,
|
|
nla_data(nl_txq_params),
|
|
nla_len(nl_txq_params),
|
|
txq_params_policy);
|
|
result = parse_txq_params(tb, &txq_params);
|
|
if (result)
|
|
goto bad_res;
|
|
|
|
result = rdev->ops->set_txq_params(&rdev->wiphy,
|
|
netdev,
|
|
&txq_params);
|
|
if (result)
|
|
goto bad_res;
|
|
}
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
|
|
result = __nl80211_set_channel(rdev, wdev, info);
|
|
if (result)
|
|
goto bad_res;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
|
|
enum nl80211_tx_power_setting type;
|
|
int idx, mbm = 0;
|
|
|
|
if (!rdev->ops->set_tx_power) {
|
|
result = -EOPNOTSUPP;
|
|
goto bad_res;
|
|
}
|
|
|
|
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)) {
|
|
result = -EINVAL;
|
|
goto bad_res;
|
|
}
|
|
|
|
if (type != NL80211_TX_POWER_AUTOMATIC) {
|
|
idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
|
|
mbm = nla_get_u32(info->attrs[idx]);
|
|
}
|
|
|
|
result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
|
|
if (result)
|
|
goto bad_res;
|
|
}
|
|
|
|
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) {
|
|
result = -EOPNOTSUPP;
|
|
goto bad_res;
|
|
}
|
|
|
|
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))) {
|
|
result = -EINVAL;
|
|
goto bad_res;
|
|
}
|
|
|
|
tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
|
|
rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
|
|
|
|
result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
|
|
if (result)
|
|
goto bad_res;
|
|
}
|
|
|
|
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) {
|
|
result = -EINVAL;
|
|
goto bad_res;
|
|
}
|
|
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) {
|
|
result = -EINVAL;
|
|
goto bad_res;
|
|
}
|
|
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) {
|
|
result = -EINVAL;
|
|
goto bad_res;
|
|
}
|
|
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]) {
|
|
coverage_class = nla_get_u8(
|
|
info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
|
|
changed |= WIPHY_PARAM_COVERAGE_CLASS;
|
|
}
|
|
|
|
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) {
|
|
result = -EOPNOTSUPP;
|
|
goto bad_res;
|
|
}
|
|
|
|
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->ops->set_wiphy_params(&rdev->wiphy, 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;
|
|
}
|
|
}
|
|
|
|
bad_res:
|
|
mutex_unlock(&rdev->mtx);
|
|
if (netdev)
|
|
dev_put(netdev);
|
|
return result;
|
|
}
|
|
|
|
static inline u64 wdev_id(struct wireless_dev *wdev)
|
|
{
|
|
return (u64)wdev->identifier |
|
|
((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
|
|
}
|
|
|
|
static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
|
|
struct cfg80211_registered_device *rdev,
|
|
struct wireless_dev *wdev)
|
|
{
|
|
struct net_device *dev = wdev->netdev;
|
|
void *hdr;
|
|
|
|
hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
|
|
if (!hdr)
|
|
return -1;
|
|
|
|
if (dev &&
|
|
(nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
|
|
nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name) ||
|
|
nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dev->dev_addr)))
|
|
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(msg, NL80211_ATTR_WDEV, wdev_id(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) {
|
|
struct ieee80211_channel *chan;
|
|
enum nl80211_channel_type channel_type;
|
|
|
|
chan = rdev->ops->get_channel(&rdev->wiphy, wdev,
|
|
&channel_type);
|
|
if (chan &&
|
|
(nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
|
|
chan->center_freq) ||
|
|
nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
|
|
channel_type)))
|
|
goto nla_put_failure;
|
|
}
|
|
|
|
return genlmsg_end(msg, hdr);
|
|
|
|
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];
|
|
struct cfg80211_registered_device *rdev;
|
|
struct wireless_dev *wdev;
|
|
|
|
mutex_lock(&cfg80211_mutex);
|
|
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_idx = 0;
|
|
|
|
mutex_lock(&rdev->devlist_mtx);
|
|
list_for_each_entry(wdev, &rdev->wdev_list, list) {
|
|
if (if_idx < if_start) {
|
|
if_idx++;
|
|
continue;
|
|
}
|
|
if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
|
|
cb->nlh->nlmsg_seq, NLM_F_MULTI,
|
|
rdev, wdev) < 0) {
|
|
mutex_unlock(&rdev->devlist_mtx);
|
|
goto out;
|
|
}
|
|
if_idx++;
|
|
}
|
|
mutex_unlock(&rdev->devlist_mtx);
|
|
|
|
wp_idx++;
|
|
}
|
|
out:
|
|
mutex_unlock(&cfg80211_mutex);
|
|
|
|
cb->args[0] = wp_idx;
|
|
cb->args[1] = if_idx;
|
|
|
|
return skb->len;
|
|
}
|
|
|
|
static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct sk_buff *msg;
|
|
struct cfg80211_registered_device *dev = 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_pid, info->snd_seq, 0,
|
|
dev, wdev) < 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 },
|
|
};
|
|
|
|
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))
|
|
return -EINVAL;
|
|
|
|
for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
|
|
if (flags[flag])
|
|
*mntrflags |= (1<<flag);
|
|
|
|
return 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];
|
|
u32 _flags, *flags = NULL;
|
|
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;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
|
|
if (ntype != NL80211_IFTYPE_MONITOR)
|
|
return -EINVAL;
|
|
err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
|
|
&_flags);
|
|
if (err)
|
|
return err;
|
|
|
|
flags = &_flags;
|
|
change = true;
|
|
}
|
|
|
|
if (change)
|
|
err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶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;
|
|
u32 flags;
|
|
|
|
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 (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;
|
|
}
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return -ENOMEM;
|
|
|
|
err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
|
|
info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
|
|
&flags);
|
|
wdev = rdev->ops->add_virtual_intf(&rdev->wiphy,
|
|
nla_data(info->attrs[NL80211_ATTR_IFNAME]),
|
|
type, err ? NULL : &flags, ¶ms);
|
|
if (IS_ERR(wdev)) {
|
|
nlmsg_free(msg);
|
|
return PTR_ERR(wdev);
|
|
}
|
|
|
|
if (type == NL80211_IFTYPE_MESH_POINT &&
|
|
info->attrs[NL80211_ATTR_MESH_ID]) {
|
|
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 (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
|
|
rdev, wdev) < 0) {
|
|
nlmsg_free(msg);
|
|
return -ENOBUFS;
|
|
}
|
|
|
|
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->ops->del_virtual_intf(&rdev->wiphy, 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->ops->set_noack_map(&rdev->wiphy, 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;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return -ENOMEM;
|
|
|
|
hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
|
|
NL80211_CMD_NEW_KEY);
|
|
if (IS_ERR(hdr))
|
|
return PTR_ERR(hdr);
|
|
|
|
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;
|
|
|
|
if (pairwise && mac_addr &&
|
|
!(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
|
|
return -ENOENT;
|
|
|
|
err = rdev->ops->get_key(&rdev->wiphy, 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->ops->set_default_key(&rdev->wiphy, 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->ops->set_default_mgmt_key(&rdev->wiphy,
|
|
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->ops->add_key(&rdev->wiphy, 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_PAIRWISE && mac_addr &&
|
|
!(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
|
|
err = -ENOENT;
|
|
|
|
if (!err)
|
|
err = rdev->ops->del_key(&rdev->wiphy, 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;
|
|
}
|
|
|
|
static int nl80211_parse_beacon(struct genl_info *info,
|
|
struct cfg80211_beacon_data *bcn)
|
|
{
|
|
bool haveinfo = false;
|
|
|
|
if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
|
|
!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
|
|
!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
|
|
!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
|
|
return -EINVAL;
|
|
|
|
memset(bcn, 0, sizeof(*bcn));
|
|
|
|
if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
|
|
bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
|
|
bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
|
|
if (!bcn->head_len)
|
|
return -EINVAL;
|
|
haveinfo = true;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
|
|
bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
|
|
bcn->tail_len =
|
|
nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
|
|
haveinfo = true;
|
|
}
|
|
|
|
if (!haveinfo)
|
|
return -EINVAL;
|
|
|
|
if (info->attrs[NL80211_ATTR_IE]) {
|
|
bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
|
|
bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
|
|
bcn->proberesp_ies =
|
|
nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
|
|
bcn->proberesp_ies_len =
|
|
nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
|
|
bcn->assocresp_ies =
|
|
nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
|
|
bcn->assocresp_ies_len =
|
|
nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
|
|
bcn->probe_resp =
|
|
nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
|
|
bcn->probe_resp_len =
|
|
nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
|
|
struct cfg80211_ap_settings *params)
|
|
{
|
|
struct wireless_dev *wdev;
|
|
bool ret = false;
|
|
|
|
mutex_lock(&rdev->devlist_mtx);
|
|
|
|
list_for_each_entry(wdev, &rdev->wdev_list, list) {
|
|
if (wdev->iftype != NL80211_IFTYPE_AP &&
|
|
wdev->iftype != NL80211_IFTYPE_P2P_GO)
|
|
continue;
|
|
|
|
if (!wdev->preset_chan)
|
|
continue;
|
|
|
|
params->channel = wdev->preset_chan;
|
|
params->channel_type = wdev->preset_chantype;
|
|
ret = true;
|
|
break;
|
|
}
|
|
|
|
mutex_unlock(&rdev->devlist_mtx);
|
|
|
|
return ret;
|
|
}
|
|
|
|
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, ¶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, 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(params.auth_type))
|
|
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_WIPHY_FREQ]) {
|
|
enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
|
|
|
|
if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
|
|
!nl80211_valid_channel_type(info, &channel_type))
|
|
return -EINVAL;
|
|
|
|
params.channel = rdev_freq_to_chan(rdev,
|
|
nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
|
|
channel_type);
|
|
if (!params.channel)
|
|
return -EINVAL;
|
|
params.channel_type = channel_type;
|
|
} else if (wdev->preset_chan) {
|
|
params.channel = wdev->preset_chan;
|
|
params.channel_type = wdev->preset_chantype;
|
|
} else if (!nl80211_get_ap_channel(rdev, ¶ms))
|
|
return -EINVAL;
|
|
|
|
if (!cfg80211_can_beacon_sec_chan(&rdev->wiphy, params.channel,
|
|
params.channel_type))
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&rdev->devlist_mtx);
|
|
err = cfg80211_can_use_chan(rdev, wdev, params.channel,
|
|
CHAN_MODE_SHARED);
|
|
mutex_unlock(&rdev->devlist_mtx);
|
|
|
|
if (err)
|
|
return err;
|
|
|
|
err = rdev->ops->start_ap(&rdev->wiphy, dev, ¶ms);
|
|
if (!err) {
|
|
wdev->preset_chan = params.channel;
|
|
wdev->preset_chantype = params.channel_type;
|
|
wdev->beacon_interval = params.beacon_interval;
|
|
wdev->channel = params.channel;
|
|
}
|
|
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, ¶ms);
|
|
if (err)
|
|
return err;
|
|
|
|
return rdev->ops->change_beacon(&rdev->wiphy, dev, ¶ms);
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
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;
|
|
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))
|
|
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;
|
|
|
|
rate = nla_nest_start(msg, attr);
|
|
if (!rate)
|
|
goto nla_put_failure;
|
|
|
|
/* 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)) ||
|
|
(bitrate_compat > 0 &&
|
|
nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat)) ||
|
|
((info->flags & RATE_INFO_FLAGS_MCS) &&
|
|
nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs)) ||
|
|
((info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) &&
|
|
nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH)) ||
|
|
((info->flags & RATE_INFO_FLAGS_SHORT_GI) &&
|
|
nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)))
|
|
goto nla_put_failure;
|
|
|
|
nla_nest_end(msg, rate);
|
|
return true;
|
|
|
|
nla_put_failure:
|
|
return false;
|
|
}
|
|
|
|
static int nl80211_send_station(struct sk_buff *msg, u32 pid, 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, pid, seq, flags, NL80211_CMD_NEW_STATION);
|
|
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;
|
|
if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
|
|
nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
|
|
sinfo->connected_time))
|
|
goto nla_put_failure;
|
|
if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
|
|
nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
|
|
sinfo->inactive_time))
|
|
goto nla_put_failure;
|
|
if ((sinfo->filled & STATION_INFO_RX_BYTES) &&
|
|
nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
|
|
sinfo->rx_bytes))
|
|
goto nla_put_failure;
|
|
if ((sinfo->filled & STATION_INFO_TX_BYTES) &&
|
|
nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
|
|
sinfo->tx_bytes))
|
|
goto nla_put_failure;
|
|
if ((sinfo->filled & STATION_INFO_LLID) &&
|
|
nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
|
|
goto nla_put_failure;
|
|
if ((sinfo->filled & STATION_INFO_PLID) &&
|
|
nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
|
|
goto nla_put_failure;
|
|
if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
|
|
nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
|
|
sinfo->plink_state))
|
|
goto nla_put_failure;
|
|
switch (rdev->wiphy.signal_type) {
|
|
case CFG80211_SIGNAL_TYPE_MBM:
|
|
if ((sinfo->filled & STATION_INFO_SIGNAL) &&
|
|
nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
|
|
sinfo->signal))
|
|
goto nla_put_failure;
|
|
if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
|
|
nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
|
|
sinfo->signal_avg))
|
|
goto nla_put_failure;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
if (sinfo->filled & STATION_INFO_TX_BITRATE) {
|
|
if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
|
|
NL80211_STA_INFO_TX_BITRATE))
|
|
goto nla_put_failure;
|
|
}
|
|
if (sinfo->filled & STATION_INFO_RX_BITRATE) {
|
|
if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
|
|
NL80211_STA_INFO_RX_BITRATE))
|
|
goto nla_put_failure;
|
|
}
|
|
if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
|
|
nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
|
|
sinfo->rx_packets))
|
|
goto nla_put_failure;
|
|
if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
|
|
nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
|
|
sinfo->tx_packets))
|
|
goto nla_put_failure;
|
|
if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
|
|
nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
|
|
sinfo->tx_retries))
|
|
goto nla_put_failure;
|
|
if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
|
|
nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
|
|
sinfo->tx_failed))
|
|
goto nla_put_failure;
|
|
if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
|
|
nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
|
|
sinfo->beacon_loss_count))
|
|
goto nla_put_failure;
|
|
if (sinfo->filled & STATION_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 & STATION_INFO_STA_FLAGS) &&
|
|
nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
|
|
sizeof(struct nl80211_sta_flag_update),
|
|
&sinfo->sta_flags))
|
|
goto nla_put_failure;
|
|
if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
|
|
nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
|
|
sinfo->t_offset))
|
|
goto nla_put_failure;
|
|
nla_nest_end(msg, sinfoattr);
|
|
|
|
if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
|
|
nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
|
|
sinfo->assoc_req_ies))
|
|
goto nla_put_failure;
|
|
|
|
return genlmsg_end(msg, hdr);
|
|
|
|
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 *dev;
|
|
struct net_device *netdev;
|
|
u8 mac_addr[ETH_ALEN];
|
|
int sta_idx = cb->args[1];
|
|
int err;
|
|
|
|
err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!dev->ops->dump_station) {
|
|
err = -EOPNOTSUPP;
|
|
goto out_err;
|
|
}
|
|
|
|
while (1) {
|
|
memset(&sinfo, 0, sizeof(sinfo));
|
|
err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
|
|
mac_addr, &sinfo);
|
|
if (err == -ENOENT)
|
|
break;
|
|
if (err)
|
|
goto out_err;
|
|
|
|
if (nl80211_send_station(skb,
|
|
NETLINK_CB(cb->skb).pid,
|
|
cb->nlh->nlmsg_seq, NLM_F_MULTI,
|
|
dev, netdev, mac_addr,
|
|
&sinfo) < 0)
|
|
goto out;
|
|
|
|
sta_idx++;
|
|
}
|
|
|
|
|
|
out:
|
|
cb->args[1] = sta_idx;
|
|
err = skb->len;
|
|
out_err:
|
|
nl80211_finish_netdev_dump(dev);
|
|
|
|
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->ops->get_station(&rdev->wiphy, 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, info->snd_pid, info->snd_seq, 0,
|
|
rdev, dev, mac_addr, &sinfo) < 0) {
|
|
nlmsg_free(msg);
|
|
return -ENOBUFS;
|
|
}
|
|
|
|
return genlmsg_reply(msg, info);
|
|
}
|
|
|
|
/*
|
|
* 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 (!netif_running(v)) {
|
|
ret = -ENETDOWN;
|
|
goto error;
|
|
}
|
|
|
|
return v;
|
|
error:
|
|
dev_put(v);
|
|
return ERR_PTR(ret);
|
|
}
|
|
|
|
static int nl80211_set_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;
|
|
|
|
memset(¶ms, 0, sizeof(params));
|
|
|
|
params.listen_interval = -1;
|
|
params.plink_state = -1;
|
|
|
|
if (info->attrs[NL80211_ATTR_STA_AID])
|
|
return -EINVAL;
|
|
|
|
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_LISTEN_INTERVAL])
|
|
params.listen_interval =
|
|
nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
|
|
|
|
if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
|
|
params.ht_capa =
|
|
nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
|
|
|
|
if (!rdev->ops->change_station)
|
|
return -EOPNOTSUPP;
|
|
|
|
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 (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
|
|
params.plink_state =
|
|
nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
|
|
|
|
switch (dev->ieee80211_ptr->iftype) {
|
|
case NL80211_IFTYPE_AP:
|
|
case NL80211_IFTYPE_AP_VLAN:
|
|
case NL80211_IFTYPE_P2P_GO:
|
|
/* disallow mesh-specific things */
|
|
if (params.plink_action)
|
|
return -EINVAL;
|
|
|
|
/* 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);
|
|
|
|
/* accept only the listed bits */
|
|
if (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)))
|
|
return -EINVAL;
|
|
|
|
/* 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_P2P_CLIENT:
|
|
case NL80211_IFTYPE_STATION:
|
|
/*
|
|
* Don't allow userspace to change the TDLS_PEER flag,
|
|
* but silently ignore attempts to change it since we
|
|
* don't have state here to verify that it doesn't try
|
|
* to change the flag.
|
|
*/
|
|
params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
|
|
/* fall through */
|
|
case NL80211_IFTYPE_ADHOC:
|
|
/* disallow things sta doesn't support */
|
|
if (params.plink_action)
|
|
return -EINVAL;
|
|
if (params.ht_capa)
|
|
return -EINVAL;
|
|
if (params.listen_interval >= 0)
|
|
return -EINVAL;
|
|
/* reject any changes other than AUTHORIZED */
|
|
if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
|
|
return -EINVAL;
|
|
break;
|
|
case NL80211_IFTYPE_MESH_POINT:
|
|
/* disallow things mesh doesn't support */
|
|
if (params.vlan)
|
|
return -EINVAL;
|
|
if (params.ht_capa)
|
|
return -EINVAL;
|
|
if (params.listen_interval >= 0)
|
|
return -EINVAL;
|
|
/*
|
|
* No special handling for TDLS here -- the userspace
|
|
* mesh code doesn't have this bug.
|
|
*/
|
|
if (params.sta_flags_mask &
|
|
~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
|
|
BIT(NL80211_STA_FLAG_MFP) |
|
|
BIT(NL80211_STA_FLAG_AUTHORIZED)))
|
|
return -EINVAL;
|
|
break;
|
|
default:
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
/* be aware of params.vlan when changing code here */
|
|
|
|
err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms);
|
|
|
|
if (params.vlan)
|
|
dev_put(params.vlan);
|
|
|
|
return err;
|
|
}
|
|
|
|
static struct nla_policy
|
|
nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
|
|
[NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
|
|
[NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
|
|
};
|
|
|
|
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;
|
|
|
|
memset(¶ms, 0, sizeof(params));
|
|
|
|
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])
|
|
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]);
|
|
|
|
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_HT_CAPABILITY])
|
|
params.ht_capa =
|
|
nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
|
|
|
|
if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
|
|
params.plink_action =
|
|
nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
|
|
|
|
if (!rdev->ops->add_station)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
|
|
return -EINVAL;
|
|
|
|
switch (dev->ieee80211_ptr->iftype) {
|
|
case NL80211_IFTYPE_AP:
|
|
case NL80211_IFTYPE_AP_VLAN:
|
|
case NL80211_IFTYPE_P2P_GO:
|
|
/* parse WME attributes if sta is WME capable */
|
|
if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
|
|
(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
|
|
info->attrs[NL80211_ATTR_STA_WME]) {
|
|
struct nlattr *tb[NL80211_STA_WME_MAX + 1];
|
|
struct nlattr *nla;
|
|
|
|
nla = info->attrs[NL80211_ATTR_STA_WME];
|
|
err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
|
|
nl80211_sta_wme_policy);
|
|
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;
|
|
}
|
|
/* TDLS peers cannot be added */
|
|
if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
|
|
return -EINVAL;
|
|
/* but don't bother the driver with it */
|
|
params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
|
|
|
|
/* 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:
|
|
/* TDLS peers cannot be added */
|
|
if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
|
|
return -EINVAL;
|
|
break;
|
|
case NL80211_IFTYPE_STATION:
|
|
/* 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;
|
|
break;
|
|
default:
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
/* be aware of params.vlan when changing code here */
|
|
|
|
err = rdev->ops->add_station(&rdev->wiphy, 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];
|
|
u8 *mac_addr = NULL;
|
|
|
|
if (info->attrs[NL80211_ATTR_MAC])
|
|
mac_addr = 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;
|
|
|
|
return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
|
|
}
|
|
|
|
static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, 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, pid, seq, flags, NL80211_CMD_NEW_STATION);
|
|
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);
|
|
|
|
return genlmsg_end(msg, hdr);
|
|
|
|
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 *dev;
|
|
struct net_device *netdev;
|
|
u8 dst[ETH_ALEN];
|
|
u8 next_hop[ETH_ALEN];
|
|
int path_idx = cb->args[1];
|
|
int err;
|
|
|
|
err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!dev->ops->dump_mpath) {
|
|
err = -EOPNOTSUPP;
|
|
goto out_err;
|
|
}
|
|
|
|
if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
|
|
err = -EOPNOTSUPP;
|
|
goto out_err;
|
|
}
|
|
|
|
while (1) {
|
|
err = dev->ops->dump_mpath(&dev->wiphy, 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).pid,
|
|
cb->nlh->nlmsg_seq, NLM_F_MULTI,
|
|
netdev, dst, next_hop,
|
|
&pinfo) < 0)
|
|
goto out;
|
|
|
|
path_idx++;
|
|
}
|
|
|
|
|
|
out:
|
|
cb->args[1] = path_idx;
|
|
err = skb->len;
|
|
out_err:
|
|
nl80211_finish_netdev_dump(dev);
|
|
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->ops->get_mpath(&rdev->wiphy, 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_pid, 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->ops->change_mpath(&rdev->wiphy, 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->ops->add_mpath(&rdev->wiphy, 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->ops->del_mpath(&rdev->wiphy, dev, dst);
|
|
}
|
|
|
|
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 bss_parameters params;
|
|
|
|
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;
|
|
|
|
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 (!rdev->ops->change_bss)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
|
|
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
|
|
return -EOPNOTSUPP;
|
|
|
|
return rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms);
|
|
}
|
|
|
|
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 },
|
|
};
|
|
|
|
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]);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
int r;
|
|
char *data = NULL;
|
|
enum nl80211_user_reg_hint_type user_reg_hint_type;
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
mutex_lock(&cfg80211_mutex);
|
|
if (unlikely(!cfg80211_regdomain)) {
|
|
mutex_unlock(&cfg80211_mutex);
|
|
return -EINPROGRESS;
|
|
}
|
|
mutex_unlock(&cfg80211_mutex);
|
|
|
|
if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
|
|
return -EINVAL;
|
|
|
|
data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
|
|
|
|
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:
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
r = regulatory_hint_user(data, user_reg_hint_type);
|
|
|
|
return r;
|
|
}
|
|
|
|
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->ops->get_mesh_config(&rdev->wiphy, 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_pid, 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_u32(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))
|
|
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 },
|
|
};
|
|
|
|
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_IE] = { .type = NLA_BINARY,
|
|
.len = IEEE80211_MAX_DATA_LEN },
|
|
[NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
|
|
};
|
|
|
|
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;
|
|
|
|
#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
|
|
do {\
|
|
if (table[attr_num]) {\
|
|
cfg->param = nla_fn(table[attr_num]); \
|
|
mask |= (1 << (attr_num - 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))
|
|
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,
|
|
mask, NL80211_MESHCONF_RETRY_TIMEOUT,
|
|
nla_get_u16);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
|
|
mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
|
|
nla_get_u16);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
|
|
mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
|
|
nla_get_u16);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
|
|
mask, NL80211_MESHCONF_MAX_PEER_LINKS,
|
|
nla_get_u16);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
|
|
mask, NL80211_MESHCONF_MAX_RETRIES,
|
|
nla_get_u8);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
|
|
mask, NL80211_MESHCONF_TTL, nla_get_u8);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
|
|
mask, NL80211_MESHCONF_ELEMENT_TTL,
|
|
nla_get_u8);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
|
|
mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
|
|
nla_get_u8);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, mask,
|
|
NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
|
|
nla_get_u32);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
|
|
mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
|
|
nla_get_u8);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
|
|
mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
|
|
nla_get_u32);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
|
|
mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
|
|
nla_get_u16);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, mask,
|
|
NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
|
|
nla_get_u32);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
|
|
mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
|
|
nla_get_u16);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
|
|
mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
|
|
nla_get_u16);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
|
|
dot11MeshHWMPnetDiameterTraversalTime, mask,
|
|
NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
|
|
nla_get_u16);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, mask,
|
|
NL80211_MESHCONF_HWMP_ROOTMODE, nla_get_u8);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, mask,
|
|
NL80211_MESHCONF_HWMP_RANN_INTERVAL,
|
|
nla_get_u16);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
|
|
dot11MeshGateAnnouncementProtocol, mask,
|
|
NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
|
|
nla_get_u8);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
|
|
mask, NL80211_MESHCONF_FORWARDING,
|
|
nla_get_u8);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold,
|
|
mask, NL80211_MESHCONF_RSSI_THRESHOLD,
|
|
nla_get_u32);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode,
|
|
mask, NL80211_MESHCONF_HT_OPMODE,
|
|
nla_get_u16);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
|
|
mask,
|
|
NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
|
|
nla_get_u32);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval,
|
|
mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
|
|
nla_get_u16);
|
|
FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
|
|
dot11MeshHWMPconfirmationInterval, mask,
|
|
NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
|
|
nla_get_u16);
|
|
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 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))
|
|
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);
|
|
}
|
|
setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
|
|
setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
|
|
|
|
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->ops->update_mesh_config(&rdev->wiphy, dev,
|
|
mask, &cfg);
|
|
|
|
wdev_unlock(wdev);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct sk_buff *msg;
|
|
void *hdr = NULL;
|
|
struct nlattr *nl_reg_rules;
|
|
unsigned int i;
|
|
int err = -EINVAL;
|
|
|
|
mutex_lock(&cfg80211_mutex);
|
|
|
|
if (!cfg80211_regdomain)
|
|
goto out;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg) {
|
|
err = -ENOBUFS;
|
|
goto out;
|
|
}
|
|
|
|
hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
|
|
NL80211_CMD_GET_REG);
|
|
if (!hdr)
|
|
goto put_failure;
|
|
|
|
if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
|
|
cfg80211_regdomain->alpha2) ||
|
|
(cfg80211_regdomain->dfs_region &&
|
|
nla_put_u8(msg, NL80211_ATTR_DFS_REGION,
|
|
cfg80211_regdomain->dfs_region)))
|
|
goto nla_put_failure;
|
|
|
|
if (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;
|
|
|
|
nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
|
|
if (!nl_reg_rules)
|
|
goto nla_put_failure;
|
|
|
|
for (i = 0; i < cfg80211_regdomain->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;
|
|
|
|
reg_rule = &cfg80211_regdomain->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;
|
|
|
|
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,
|
|
freq_range->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))
|
|
goto nla_put_failure;
|
|
|
|
nla_nest_end(msg, nl_reg_rule);
|
|
}
|
|
|
|
nla_nest_end(msg, nl_reg_rules);
|
|
|
|
genlmsg_end(msg, hdr);
|
|
err = genlmsg_reply(msg, info);
|
|
goto out;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
put_failure:
|
|
nlmsg_free(msg);
|
|
err = -EMSGSIZE;
|
|
out:
|
|
mutex_unlock(&cfg80211_mutex);
|
|
return err;
|
|
}
|
|
|
|
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 = NULL;
|
|
int rem_reg_rules = 0, r = 0;
|
|
u32 num_rules = 0, rule_idx = 0, size_of_regd;
|
|
u8 dfs_region = 0;
|
|
struct ieee80211_regdomain *rd = NULL;
|
|
|
|
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;
|
|
}
|
|
|
|
mutex_lock(&cfg80211_mutex);
|
|
|
|
if (!reg_is_valid_request(alpha2)) {
|
|
r = -EINVAL;
|
|
goto bad_reg;
|
|
}
|
|
|
|
size_of_regd = sizeof(struct ieee80211_regdomain) +
|
|
(num_rules * sizeof(struct ieee80211_reg_rule));
|
|
|
|
rd = kzalloc(size_of_regd, GFP_KERNEL);
|
|
if (!rd) {
|
|
r = -ENOMEM;
|
|
goto bad_reg;
|
|
}
|
|
|
|
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) {
|
|
nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
|
|
nla_data(nl_reg_rule), nla_len(nl_reg_rule),
|
|
reg_rule_policy);
|
|
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;
|
|
}
|
|
}
|
|
|
|
BUG_ON(rule_idx != num_rules);
|
|
|
|
r = set_regdom(rd);
|
|
|
|
mutex_unlock(&cfg80211_mutex);
|
|
|
|
return r;
|
|
|
|
bad_reg:
|
|
mutex_unlock(&cfg80211_mutex);
|
|
kfree(rd);
|
|
return r;
|
|
}
|
|
|
|
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) {
|
|
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 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 (!rdev->ops->scan)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (rdev->scan_req)
|
|
return -EBUSY;
|
|
|
|
if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
|
|
n_channels = validate_scan_freqs(
|
|
info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
|
|
if (!n_channels)
|
|
return -EINVAL;
|
|
} else {
|
|
enum ieee80211_band band;
|
|
n_channels = 0;
|
|
|
|
for (band = 0; band < IEEE80211_NUM_BANDS; band++)
|
|
if (wiphy->bands[band])
|
|
n_channels += wiphy->bands[band]->n_channels;
|
|
}
|
|
|
|
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)
|
|
return -EINVAL;
|
|
|
|
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)
|
|
return -EINVAL;
|
|
|
|
request = kzalloc(sizeof(*request)
|
|
+ sizeof(*request->ssids) * n_ssids
|
|
+ sizeof(*request->channels) * n_channels
|
|
+ ie_len, GFP_KERNEL);
|
|
if (!request)
|
|
return -ENOMEM;
|
|
|
|
if (n_ssids)
|
|
request->ssids = (void *)&request->channels[n_channels];
|
|
request->n_ssids = n_ssids;
|
|
if (ie_len) {
|
|
if (request->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 ieee80211_band band;
|
|
|
|
/* all channels */
|
|
for (band = 0; band < IEEE80211_NUM_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 (info->attrs[NL80211_ATTR_SCAN_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 < IEEE80211_NUM_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 ieee80211_band band = nla_type(attr);
|
|
|
|
if (band < 0 || band >= IEEE80211_NUM_BANDS) {
|
|
err = -EINVAL;
|
|
goto out_free;
|
|
}
|
|
err = ieee80211_get_ratemask(wiphy->bands[band],
|
|
nla_data(attr),
|
|
nla_len(attr),
|
|
&request->rates[band]);
|
|
if (err)
|
|
goto out_free;
|
|
}
|
|
}
|
|
|
|
request->no_cck =
|
|
nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
|
|
|
|
request->wdev = wdev;
|
|
request->wiphy = &rdev->wiphy;
|
|
|
|
rdev->scan_req = request;
|
|
err = rdev->ops->scan(&rdev->wiphy, 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);
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_start_sched_scan(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct cfg80211_sched_scan_request *request;
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct nlattr *attr;
|
|
struct wiphy *wiphy;
|
|
int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
|
|
u32 interval;
|
|
enum ieee80211_band band;
|
|
size_t ie_len;
|
|
struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
|
|
|
|
if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
|
|
!rdev->ops->sched_scan_start)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
|
|
return -EINVAL;
|
|
|
|
if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
|
|
return -EINVAL;
|
|
|
|
interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
|
|
if (interval == 0)
|
|
return -EINVAL;
|
|
|
|
wiphy = &rdev->wiphy;
|
|
|
|
if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
|
|
n_channels = validate_scan_freqs(
|
|
info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
|
|
if (!n_channels)
|
|
return -EINVAL;
|
|
} else {
|
|
n_channels = 0;
|
|
|
|
for (band = 0; band < IEEE80211_NUM_BANDS; band++)
|
|
if (wiphy->bands[band])
|
|
n_channels += wiphy->bands[band]->n_channels;
|
|
}
|
|
|
|
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_sched_scan_ssids)
|
|
return -EINVAL;
|
|
|
|
if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
|
|
nla_for_each_nested(attr,
|
|
info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
|
|
tmp)
|
|
n_match_sets++;
|
|
|
|
if (n_match_sets > wiphy->max_match_sets)
|
|
return -EINVAL;
|
|
|
|
if (info->attrs[NL80211_ATTR_IE])
|
|
ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
|
|
else
|
|
ie_len = 0;
|
|
|
|
if (ie_len > wiphy->max_sched_scan_ie_len)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&rdev->sched_scan_mtx);
|
|
|
|
if (rdev->sched_scan_req) {
|
|
err = -EINPROGRESS;
|
|
goto out;
|
|
}
|
|
|
|
request = kzalloc(sizeof(*request)
|
|
+ sizeof(*request->ssids) * n_ssids
|
|
+ sizeof(*request->match_sets) * n_match_sets
|
|
+ sizeof(*request->channels) * n_channels
|
|
+ ie_len, GFP_KERNEL);
|
|
if (!request) {
|
|
err = -ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
if (n_ssids)
|
|
request->ssids = (void *)&request->channels[n_channels];
|
|
request->n_ssids = n_ssids;
|
|
if (ie_len) {
|
|
if (request->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 (request->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;
|
|
|
|
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 {
|
|
/* all channels */
|
|
for (band = 0; band < IEEE80211_NUM_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 (info->attrs[NL80211_ATTR_SCAN_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++;
|
|
}
|
|
}
|
|
|
|
i = 0;
|
|
if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
|
|
nla_for_each_nested(attr,
|
|
info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
|
|
tmp) {
|
|
struct nlattr *ssid, *rssi;
|
|
|
|
nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
|
|
nla_data(attr), nla_len(attr),
|
|
nl80211_match_policy);
|
|
ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
|
|
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);
|
|
}
|
|
rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
|
|
if (rssi)
|
|
request->rssi_thold = nla_get_u32(rssi);
|
|
else
|
|
request->rssi_thold =
|
|
NL80211_SCAN_RSSI_THOLD_OFF;
|
|
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);
|
|
}
|
|
|
|
request->dev = dev;
|
|
request->wiphy = &rdev->wiphy;
|
|
request->interval = interval;
|
|
|
|
err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
|
|
if (!err) {
|
|
rdev->sched_scan_req = request;
|
|
nl80211_send_sched_scan(rdev, dev,
|
|
NL80211_CMD_START_SCHED_SCAN);
|
|
goto out;
|
|
}
|
|
|
|
out_free:
|
|
kfree(request);
|
|
out:
|
|
mutex_unlock(&rdev->sched_scan_mtx);
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_stop_sched_scan(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
int err;
|
|
|
|
if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
|
|
!rdev->ops->sched_scan_stop)
|
|
return -EOPNOTSUPP;
|
|
|
|
mutex_lock(&rdev->sched_scan_mtx);
|
|
err = __cfg80211_stop_sched_scan(rdev, false);
|
|
mutex_unlock(&rdev->sched_scan_mtx);
|
|
|
|
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;
|
|
void *hdr;
|
|
struct nlattr *bss;
|
|
|
|
ASSERT_WDEV_LOCK(wdev);
|
|
|
|
hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
|
|
NL80211_CMD_NEW_SCAN_RESULTS);
|
|
if (!hdr)
|
|
return -1;
|
|
|
|
genl_dump_check_consistent(cb, hdr, &nl80211_fam);
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
|
|
nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
|
|
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)) ||
|
|
(res->information_elements && res->len_information_elements &&
|
|
nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
|
|
res->len_information_elements,
|
|
res->information_elements)) ||
|
|
(res->beacon_ies && res->len_beacon_ies &&
|
|
res->beacon_ies != res->information_elements &&
|
|
nla_put(msg, NL80211_BSS_BEACON_IES,
|
|
res->len_beacon_ies, res->beacon_ies)))
|
|
goto nla_put_failure;
|
|
if (res->tsf &&
|
|
nla_put_u64(msg, NL80211_BSS_TSF, res->tsf))
|
|
goto nla_put_failure;
|
|
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_SEEN_MS_AGO,
|
|
jiffies_to_msecs(jiffies - intbss->ts)))
|
|
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);
|
|
|
|
return genlmsg_end(msg, hdr);
|
|
|
|
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 net_device *dev;
|
|
struct cfg80211_internal_bss *scan;
|
|
struct wireless_dev *wdev;
|
|
int start = cb->args[1], idx = 0;
|
|
int err;
|
|
|
|
err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
|
|
if (err)
|
|
return err;
|
|
|
|
wdev = dev->ieee80211_ptr;
|
|
|
|
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[1] = idx;
|
|
nl80211_finish_netdev_dump(rdev);
|
|
|
|
return skb->len;
|
|
}
|
|
|
|
static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
|
|
int flags, struct net_device *dev,
|
|
struct survey_info *survey)
|
|
{
|
|
void *hdr;
|
|
struct nlattr *infoattr;
|
|
|
|
hdr = nl80211hdr_put(msg, pid, 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 (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_CHANNEL_TIME) &&
|
|
nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
|
|
survey->channel_time))
|
|
goto nla_put_failure;
|
|
if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
|
|
nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
|
|
survey->channel_time_busy))
|
|
goto nla_put_failure;
|
|
if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
|
|
nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
|
|
survey->channel_time_ext_busy))
|
|
goto nla_put_failure;
|
|
if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
|
|
nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
|
|
survey->channel_time_rx))
|
|
goto nla_put_failure;
|
|
if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
|
|
nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
|
|
survey->channel_time_tx))
|
|
goto nla_put_failure;
|
|
|
|
nla_nest_end(msg, infoattr);
|
|
|
|
return genlmsg_end(msg, hdr);
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
static int nl80211_dump_survey(struct sk_buff *skb,
|
|
struct netlink_callback *cb)
|
|
{
|
|
struct survey_info survey;
|
|
struct cfg80211_registered_device *dev;
|
|
struct net_device *netdev;
|
|
int survey_idx = cb->args[1];
|
|
int res;
|
|
|
|
res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
|
|
if (res)
|
|
return res;
|
|
|
|
if (!dev->ops->dump_survey) {
|
|
res = -EOPNOTSUPP;
|
|
goto out_err;
|
|
}
|
|
|
|
while (1) {
|
|
struct ieee80211_channel *chan;
|
|
|
|
res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
|
|
&survey);
|
|
if (res == -ENOENT)
|
|
break;
|
|
if (res)
|
|
goto out_err;
|
|
|
|
/* Survey without a channel doesn't make sense */
|
|
if (!survey.channel) {
|
|
res = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
chan = ieee80211_get_channel(&dev->wiphy,
|
|
survey.channel->center_freq);
|
|
if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
|
|
survey_idx++;
|
|
continue;
|
|
}
|
|
|
|
if (nl80211_send_survey(skb,
|
|
NETLINK_CB(cb->skb).pid,
|
|
cb->nlh->nlmsg_seq, NLM_F_MULTI,
|
|
netdev,
|
|
&survey) < 0)
|
|
goto out;
|
|
survey_idx++;
|
|
}
|
|
|
|
out:
|
|
cb->args[1] = survey_idx;
|
|
res = skb->len;
|
|
out_err:
|
|
nl80211_finish_netdev_dump(dev);
|
|
return res;
|
|
}
|
|
|
|
static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
|
|
{
|
|
return auth_type <= NL80211_AUTHTYPE_MAX;
|
|
}
|
|
|
|
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;
|
|
int err, ssid_len, ie_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 > 4)
|
|
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 = ieee80211_get_channel(&rdev->wiphy,
|
|
nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
|
|
if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
|
|
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(auth_type))
|
|
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;
|
|
|
|
return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
|
|
ssid, ssid_len, ie, ie_len,
|
|
key.p.key, key.p.key_len, key.idx);
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
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 cfg80211_crypto_settings crypto;
|
|
struct ieee80211_channel *chan;
|
|
const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
|
|
int err, ssid_len, ie_len = 0;
|
|
bool use_mfp = false;
|
|
u32 flags = 0;
|
|
struct ieee80211_ht_cap *ht_capa = NULL;
|
|
struct ieee80211_ht_cap *ht_capa_mask = NULL;
|
|
|
|
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 = ieee80211_get_channel(&rdev->wiphy,
|
|
nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
|
|
if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
|
|
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]);
|
|
}
|
|
|
|
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)
|
|
use_mfp = true;
|
|
else if (mfp != NL80211_MFP_NO)
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_PREV_BSSID])
|
|
prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
|
|
|
|
if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
|
|
flags |= ASSOC_REQ_DISABLE_HT;
|
|
|
|
if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
|
|
ht_capa_mask =
|
|
nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
|
|
|
|
if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
|
|
if (!ht_capa_mask)
|
|
return -EINVAL;
|
|
ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
|
|
}
|
|
|
|
err = nl80211_crypto_settings(rdev, info, &crypto, 1);
|
|
if (!err)
|
|
err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
|
|
ssid, ssid_len, ie, ie_len, use_mfp,
|
|
&crypto, flags, ht_capa,
|
|
ht_capa_mask);
|
|
|
|
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;
|
|
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];
|
|
|
|
return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
|
|
local_state_change);
|
|
}
|
|
|
|
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;
|
|
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];
|
|
|
|
return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
|
|
local_state_change);
|
|
}
|
|
|
|
static bool
|
|
nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
|
|
int mcast_rate[IEEE80211_NUM_BANDS],
|
|
int rateval)
|
|
{
|
|
struct wiphy *wiphy = &rdev->wiphy;
|
|
bool found = false;
|
|
int band, i;
|
|
|
|
for (band = 0; band < IEEE80211_NUM_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_WIPHY_FREQ] ||
|
|
!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]);
|
|
if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
|
|
return -EINVAL;
|
|
}
|
|
|
|
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]);
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
|
|
enum nl80211_channel_type channel_type;
|
|
|
|
if (!nl80211_valid_channel_type(info, &channel_type))
|
|
return -EINVAL;
|
|
|
|
if (channel_type != NL80211_CHAN_NO_HT &&
|
|
!(wiphy->features & NL80211_FEATURE_HT_IBSS))
|
|
return -EINVAL;
|
|
|
|
ibss.channel_type = channel_type;
|
|
} else {
|
|
ibss.channel_type = NL80211_CHAN_NO_HT;
|
|
}
|
|
|
|
ibss.channel = rdev_freq_to_chan(rdev,
|
|
nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
|
|
ibss.channel_type);
|
|
if (!ibss.channel ||
|
|
ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
|
|
ibss.channel->flags & IEEE80211_CHAN_DISABLED)
|
|
return -EINVAL;
|
|
|
|
/* Both channels should be able to initiate communication */
|
|
if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
|
|
ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
|
|
!cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
|
|
ibss.channel_type))
|
|
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.channel->band];
|
|
|
|
err = ieee80211_get_ratemask(sband, rates, n_rates,
|
|
&ibss.basic_rates);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
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]) {
|
|
connkeys = nl80211_parse_connkeys(rdev,
|
|
info->attrs[NL80211_ATTR_KEYS]);
|
|
if (IS_ERR(connkeys))
|
|
return PTR_ERR(connkeys);
|
|
}
|
|
|
|
ibss.control_port =
|
|
nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
|
|
|
|
err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
|
|
if (err)
|
|
kfree(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);
|
|
}
|
|
|
|
#ifdef CONFIG_NL80211_TESTMODE
|
|
static struct genl_multicast_group nl80211_testmode_mcgrp = {
|
|
.name = "testmode",
|
|
};
|
|
|
|
static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
int err;
|
|
|
|
if (!info->attrs[NL80211_ATTR_TESTDATA])
|
|
return -EINVAL;
|
|
|
|
err = -EOPNOTSUPP;
|
|
if (rdev->ops->testmode_cmd) {
|
|
rdev->testmode_info = info;
|
|
err = rdev->ops->testmode_cmd(&rdev->wiphy,
|
|
nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
|
|
nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
|
|
rdev->testmode_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;
|
|
|
|
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;
|
|
} else {
|
|
err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
|
|
nl80211_fam.attrbuf, nl80211_fam.maxattr,
|
|
nl80211_policy);
|
|
if (err)
|
|
return err;
|
|
|
|
mutex_lock(&cfg80211_mutex);
|
|
rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
|
|
nl80211_fam.attrbuf);
|
|
if (IS_ERR(rdev)) {
|
|
mutex_unlock(&cfg80211_mutex);
|
|
return PTR_ERR(rdev);
|
|
}
|
|
phy_idx = rdev->wiphy_idx;
|
|
rdev = NULL;
|
|
mutex_unlock(&cfg80211_mutex);
|
|
|
|
if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
|
|
cb->args[1] =
|
|
(long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
|
|
}
|
|
|
|
if (cb->args[1]) {
|
|
data = nla_data((void *)cb->args[1]);
|
|
data_len = nla_len((void *)cb->args[1]);
|
|
}
|
|
|
|
mutex_lock(&cfg80211_mutex);
|
|
rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
|
|
if (!rdev) {
|
|
mutex_unlock(&cfg80211_mutex);
|
|
return -ENOENT;
|
|
}
|
|
cfg80211_lock_rdev(rdev);
|
|
mutex_unlock(&cfg80211_mutex);
|
|
|
|
if (!rdev->ops->testmode_dump) {
|
|
err = -EOPNOTSUPP;
|
|
goto out_err;
|
|
}
|
|
|
|
while (1) {
|
|
void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
|
|
cb->nlh->nlmsg_seq, NLM_F_MULTI,
|
|
NL80211_CMD_TESTMODE);
|
|
struct nlattr *tmdata;
|
|
|
|
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->ops->testmode_dump(&rdev->wiphy, 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:
|
|
cfg80211_unlock_rdev(rdev);
|
|
return err;
|
|
}
|
|
|
|
static struct sk_buff *
|
|
__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
|
|
int approxlen, u32 pid, u32 seq, 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, pid, seq, 0, NL80211_CMD_TESTMODE);
|
|
if (!hdr) {
|
|
kfree_skb(skb);
|
|
return NULL;
|
|
}
|
|
|
|
if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
|
|
goto nla_put_failure;
|
|
data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
|
|
|
|
((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_testmode_alloc_reply_skb(struct wiphy *wiphy,
|
|
int approxlen)
|
|
{
|
|
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
|
|
|
|
if (WARN_ON(!rdev->testmode_info))
|
|
return NULL;
|
|
|
|
return __cfg80211_testmode_alloc_skb(rdev, approxlen,
|
|
rdev->testmode_info->snd_pid,
|
|
rdev->testmode_info->snd_seq,
|
|
GFP_KERNEL);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
|
|
|
|
int cfg80211_testmode_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];
|
|
|
|
if (WARN_ON(!rdev->testmode_info)) {
|
|
kfree_skb(skb);
|
|
return -EINVAL;
|
|
}
|
|
|
|
nla_nest_end(skb, data);
|
|
genlmsg_end(skb, hdr);
|
|
return genlmsg_reply(skb, rdev->testmode_info);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_testmode_reply);
|
|
|
|
struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
|
|
int approxlen, gfp_t gfp)
|
|
{
|
|
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
|
|
|
|
return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
|
|
|
|
void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
|
|
{
|
|
void *hdr = ((void **)skb->cb)[1];
|
|
struct nlattr *data = ((void **)skb->cb)[2];
|
|
|
|
nla_nest_end(skb, data);
|
|
genlmsg_end(skb, hdr);
|
|
genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_testmode_event);
|
|
#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(connect.auth_type))
|
|
return -EINVAL;
|
|
} else
|
|
connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
|
|
|
|
connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
|
|
|
|
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]);
|
|
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_WIPHY_FREQ]) {
|
|
connect.channel =
|
|
ieee80211_get_channel(wiphy,
|
|
nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
|
|
if (!connect.channel ||
|
|
connect.channel->flags & IEEE80211_CHAN_DISABLED)
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
|
|
connkeys = nl80211_parse_connkeys(rdev,
|
|
info->attrs[NL80211_ATTR_KEYS]);
|
|
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]) {
|
|
kfree(connkeys);
|
|
return -EINVAL;
|
|
}
|
|
memcpy(&connect.ht_capa,
|
|
nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
|
|
sizeof(connect.ht_capa));
|
|
}
|
|
|
|
err = cfg80211_connect(rdev, dev, &connect, connkeys);
|
|
if (err)
|
|
kfree(connkeys);
|
|
return err;
|
|
}
|
|
|
|
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;
|
|
|
|
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;
|
|
|
|
return cfg80211_disconnect(rdev, dev, reason, true);
|
|
}
|
|
|
|
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;
|
|
u32 pid;
|
|
|
|
if (!info->attrs[NL80211_ATTR_PID])
|
|
return -EINVAL;
|
|
|
|
pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
|
|
|
|
net = get_net_ns_by_pid(pid);
|
|
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_MAC])
|
|
return -EINVAL;
|
|
|
|
if (!info->attrs[NL80211_ATTR_PMKID])
|
|
return -EINVAL;
|
|
|
|
pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
|
|
pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
|
|
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->ops->flush_pmksa(&rdev->wiphy, 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;
|
|
u16 status_code;
|
|
u8 *peer;
|
|
|
|
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]);
|
|
|
|
return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
|
|
dialog_token, status_code,
|
|
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->ops->tdls_oper(&rdev->wiphy, 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 ieee80211_channel *chan;
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
u64 cookie;
|
|
enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
|
|
u32 freq, 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;
|
|
|
|
if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
|
|
!nl80211_valid_channel_type(info, &channel_type))
|
|
return -EINVAL;
|
|
|
|
freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
|
|
chan = rdev_freq_to_chan(rdev, freq, channel_type);
|
|
if (chan == NULL)
|
|
return -EINVAL;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return -ENOMEM;
|
|
|
|
hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
|
|
NL80211_CMD_REMAIN_ON_CHANNEL);
|
|
|
|
if (IS_ERR(hdr)) {
|
|
err = PTR_ERR(hdr);
|
|
goto free_msg;
|
|
}
|
|
|
|
err = rdev->ops->remain_on_channel(&rdev->wiphy, wdev, chan,
|
|
channel_type, duration, &cookie);
|
|
|
|
if (err)
|
|
goto free_msg;
|
|
|
|
if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
|
|
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->ops->cancel_remain_on_channel(&rdev->wiphy, wdev, cookie);
|
|
}
|
|
|
|
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 const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
|
|
[NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
|
|
.len = NL80211_MAX_SUPP_RATES },
|
|
[NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
|
|
.len = NL80211_MAX_SUPP_HT_RATES },
|
|
};
|
|
|
|
static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct nlattr *tb[NL80211_TXRATE_MAX + 1];
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct cfg80211_bitrate_mask mask;
|
|
int rem, i;
|
|
struct net_device *dev = info->user_ptr[1];
|
|
struct nlattr *tx_rates;
|
|
struct ieee80211_supported_band *sband;
|
|
|
|
if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
|
|
return -EINVAL;
|
|
|
|
if (!rdev->ops->set_bitrate_mask)
|
|
return -EOPNOTSUPP;
|
|
|
|
memset(&mask, 0, sizeof(mask));
|
|
/* Default to all rates enabled */
|
|
for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
|
|
sband = rdev->wiphy.bands[i];
|
|
mask.control[i].legacy =
|
|
sband ? (1 << sband->n_bitrates) - 1 : 0;
|
|
if (sband)
|
|
memcpy(mask.control[i].mcs,
|
|
sband->ht_cap.mcs.rx_mask,
|
|
sizeof(mask.control[i].mcs));
|
|
else
|
|
memset(mask.control[i].mcs, 0,
|
|
sizeof(mask.control[i].mcs));
|
|
}
|
|
|
|
/*
|
|
* The nested attribute uses enum nl80211_band as the index. This maps
|
|
* directly to the enum ieee80211_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 ieee80211_band band = nla_type(tx_rates);
|
|
if (band < 0 || band >= IEEE80211_NUM_BANDS)
|
|
return -EINVAL;
|
|
sband = rdev->wiphy.bands[band];
|
|
if (sband == NULL)
|
|
return -EINVAL;
|
|
nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
|
|
nla_len(tx_rates), nl80211_txattr_policy);
|
|
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_MCS]) {
|
|
if (!ht_rateset_to_mask(
|
|
sband,
|
|
nla_data(tb[NL80211_TXRATE_MCS]),
|
|
nla_len(tb[NL80211_TXRATE_MCS]),
|
|
mask.control[band].mcs))
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (mask.control[band].legacy == 0) {
|
|
/* don't allow empty legacy rates if HT
|
|
* is not even supported. */
|
|
if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
|
|
return -EINVAL;
|
|
|
|
for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
|
|
if (mask.control[band].mcs[i])
|
|
break;
|
|
|
|
/* legacy and mcs rates may not be both empty */
|
|
if (i == IEEE80211_HT_MCS_MASK_LEN)
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
return rdev->ops->set_bitrate_mask(&rdev->wiphy, 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:
|
|
break;
|
|
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_pid, 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 ieee80211_channel *chan;
|
|
enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
|
|
bool channel_type_valid = false;
|
|
u32 freq;
|
|
int err;
|
|
void *hdr = NULL;
|
|
u64 cookie;
|
|
struct sk_buff *msg = NULL;
|
|
unsigned int wait = 0;
|
|
bool offchan, no_cck, dont_wait_for_ack;
|
|
|
|
dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
|
|
|
|
if (!info->attrs[NL80211_ATTR_FRAME] ||
|
|
!info->attrs[NL80211_ATTR_WIPHY_FREQ])
|
|
return -EINVAL;
|
|
|
|
if (!rdev->ops->mgmt_tx)
|
|
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_MESH_POINT:
|
|
case NL80211_IFTYPE_P2P_GO:
|
|
break;
|
|
default:
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_DURATION]) {
|
|
if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
|
|
return -EINVAL;
|
|
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 (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
|
|
wait > rdev->wiphy.max_remain_on_channel_duration)
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
|
|
if (!nl80211_valid_channel_type(info, &channel_type))
|
|
return -EINVAL;
|
|
channel_type_valid = true;
|
|
}
|
|
|
|
offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
|
|
|
|
if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
|
|
return -EINVAL;
|
|
|
|
no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
|
|
|
|
freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
|
|
chan = rdev_freq_to_chan(rdev, freq, channel_type);
|
|
if (chan == NULL)
|
|
return -EINVAL;
|
|
|
|
if (!dont_wait_for_ack) {
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return -ENOMEM;
|
|
|
|
hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
|
|
NL80211_CMD_FRAME);
|
|
|
|
if (IS_ERR(hdr)) {
|
|
err = PTR_ERR(hdr);
|
|
goto free_msg;
|
|
}
|
|
}
|
|
|
|
err = cfg80211_mlme_mgmt_tx(rdev, wdev, chan, offchan, channel_type,
|
|
channel_type_valid, wait,
|
|
nla_data(info->attrs[NL80211_ATTR_FRAME]),
|
|
nla_len(info->attrs[NL80211_ATTR_FRAME]),
|
|
no_cck, dont_wait_for_ack, &cookie);
|
|
if (err)
|
|
goto free_msg;
|
|
|
|
if (msg) {
|
|
if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
|
|
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:
|
|
break;
|
|
default:
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
|
|
|
|
return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, 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->ops->set_power_mgmt(wdev->wiphy, 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_pid, 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 struct nla_policy
|
|
nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
|
|
[NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
|
|
[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 },
|
|
};
|
|
|
|
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 wireless_dev *wdev;
|
|
struct net_device *dev = info->user_ptr[1];
|
|
|
|
if ((rate < 0 || rate > 100) ||
|
|
(intvl < 0 || intvl > NL80211_CQM_TXE_MAX_INTVL))
|
|
return -EINVAL;
|
|
|
|
wdev = dev->ieee80211_ptr;
|
|
|
|
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->ops->set_cqm_txe_config(wdev->wiphy, dev,
|
|
rate, pkts, intvl);
|
|
}
|
|
|
|
static int nl80211_set_cqm_rssi(struct genl_info *info,
|
|
s32 threshold, u32 hysteresis)
|
|
{
|
|
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
|
struct wireless_dev *wdev;
|
|
struct net_device *dev = info->user_ptr[1];
|
|
|
|
if (threshold > 0)
|
|
return -EINVAL;
|
|
|
|
wdev = dev->ieee80211_ptr;
|
|
|
|
if (!rdev->ops->set_cqm_rssi_config)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (wdev->iftype != NL80211_IFTYPE_STATION &&
|
|
wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
|
|
return -EOPNOTSUPP;
|
|
|
|
return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
|
|
threshold, hysteresis);
|
|
}
|
|
|
|
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) {
|
|
err = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
|
|
nl80211_attr_cqm_policy);
|
|
if (err)
|
|
goto out;
|
|
|
|
if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
|
|
attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
|
|
s32 threshold;
|
|
u32 hysteresis;
|
|
threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
|
|
hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
|
|
err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
|
|
} else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
|
|
attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
|
|
attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
|
|
u32 rate, pkts, intvl;
|
|
rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
|
|
pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
|
|
intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
|
|
err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
|
|
} else
|
|
err = -EINVAL;
|
|
|
|
out:
|
|
return err;
|
|
}
|
|
|
|
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_MESH_SETUP]) {
|
|
/* parse additional setup parameters if given */
|
|
err = nl80211_parse_mesh_setup(info, &setup);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
|
|
enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
|
|
|
|
if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
|
|
!nl80211_valid_channel_type(info, &channel_type))
|
|
return -EINVAL;
|
|
|
|
setup.channel = rdev_freq_to_chan(rdev,
|
|
nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
|
|
channel_type);
|
|
if (!setup.channel)
|
|
return -EINVAL;
|
|
setup.channel_type = channel_type;
|
|
} else {
|
|
/* cfg80211_join_mesh() will sort it out */
|
|
setup.channel = NULL;
|
|
}
|
|
|
|
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_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;
|
|
|
|
if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
|
|
return -EOPNOTSUPP;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return -ENOMEM;
|
|
|
|
hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
|
|
NL80211_CMD_GET_WOWLAN);
|
|
if (!hdr)
|
|
goto nla_put_failure;
|
|
|
|
if (rdev->wowlan) {
|
|
struct nlattr *nl_wowlan;
|
|
|
|
nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
|
|
if (!nl_wowlan)
|
|
goto nla_put_failure;
|
|
|
|
if ((rdev->wowlan->any &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
|
|
(rdev->wowlan->disconnect &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
|
|
(rdev->wowlan->magic_pkt &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
|
|
(rdev->wowlan->gtk_rekey_failure &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
|
|
(rdev->wowlan->eap_identity_req &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
|
|
(rdev->wowlan->four_way_handshake &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
|
|
(rdev->wowlan->rfkill_release &&
|
|
nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
|
|
goto nla_put_failure;
|
|
if (rdev->wowlan->n_patterns) {
|
|
struct nlattr *nl_pats, *nl_pat;
|
|
int i, pat_len;
|
|
|
|
nl_pats = nla_nest_start(msg,
|
|
NL80211_WOWLAN_TRIG_PKT_PATTERN);
|
|
if (!nl_pats)
|
|
goto nla_put_failure;
|
|
|
|
for (i = 0; i < rdev->wowlan->n_patterns; i++) {
|
|
nl_pat = nla_nest_start(msg, i + 1);
|
|
if (!nl_pat)
|
|
goto nla_put_failure;
|
|
pat_len = rdev->wowlan->patterns[i].pattern_len;
|
|
if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
|
|
DIV_ROUND_UP(pat_len, 8),
|
|
rdev->wowlan->patterns[i].mask) ||
|
|
nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
|
|
pat_len,
|
|
rdev->wowlan->patterns[i].pattern))
|
|
goto nla_put_failure;
|
|
nla_nest_end(msg, nl_pat);
|
|
}
|
|
nla_nest_end(msg, nl_pats);
|
|
}
|
|
|
|
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_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;
|
|
struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
|
|
int err, i;
|
|
bool prev_enabled = rdev->wowlan;
|
|
|
|
if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
|
|
cfg80211_rdev_free_wowlan(rdev);
|
|
rdev->wowlan = NULL;
|
|
goto set_wakeup;
|
|
}
|
|
|
|
err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
|
|
nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
|
|
nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
|
|
nl80211_wowlan_policy);
|
|
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;
|
|
}
|
|
|
|
if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
|
|
if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
|
|
return -EINVAL;
|
|
new_triggers.magic_pkt = 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;
|
|
}
|
|
|
|
if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
|
|
if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
|
|
return -EINVAL;
|
|
new_triggers.eap_identity_req = true;
|
|
}
|
|
|
|
if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
|
|
if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
|
|
return -EINVAL;
|
|
new_triggers.four_way_handshake = true;
|
|
}
|
|
|
|
if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
|
|
if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
|
|
return -EINVAL;
|
|
new_triggers.rfkill_release = true;
|
|
}
|
|
|
|
if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
|
|
struct nlattr *pat;
|
|
int n_patterns = 0;
|
|
int rem, pat_len, mask_len;
|
|
struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
|
|
|
|
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) {
|
|
nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
|
|
nla_data(pat), nla_len(pat), NULL);
|
|
err = -EINVAL;
|
|
if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
|
|
!pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
|
|
goto error;
|
|
pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
|
|
mask_len = DIV_ROUND_UP(pat_len, 8);
|
|
if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
|
|
mask_len)
|
|
goto error;
|
|
if (pat_len > wowlan->pattern_max_len ||
|
|
pat_len < wowlan->pattern_min_len)
|
|
goto error;
|
|
|
|
new_triggers.patterns[i].mask =
|
|
kmalloc(mask_len + pat_len, GFP_KERNEL);
|
|
if (!new_triggers.patterns[i].mask) {
|
|
err = -ENOMEM;
|
|
goto error;
|
|
}
|
|
new_triggers.patterns[i].pattern =
|
|
new_triggers.patterns[i].mask + mask_len;
|
|
memcpy(new_triggers.patterns[i].mask,
|
|
nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
|
|
mask_len);
|
|
new_triggers.patterns[i].pattern_len = pat_len;
|
|
memcpy(new_triggers.patterns[i].pattern,
|
|
nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
|
|
pat_len);
|
|
i++;
|
|
}
|
|
}
|
|
|
|
ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
|
|
if (!ntrig) {
|
|
err = -ENOMEM;
|
|
goto error;
|
|
}
|
|
cfg80211_rdev_free_wowlan(rdev);
|
|
rdev->wowlan = ntrig;
|
|
|
|
set_wakeup:
|
|
if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
|
|
rdev->ops->set_wakeup(&rdev->wiphy, rdev->wowlan);
|
|
|
|
return 0;
|
|
error:
|
|
for (i = 0; i < new_triggers.n_patterns; i++)
|
|
kfree(new_triggers.patterns[i].mask);
|
|
kfree(new_triggers.patterns);
|
|
return err;
|
|
}
|
|
#endif
|
|
|
|
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(tb, MAX_NL80211_REKEY_DATA,
|
|
nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
|
|
nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
|
|
nl80211_rekey_policy);
|
|
if (err)
|
|
return err;
|
|
|
|
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;
|
|
|
|
memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
|
|
NL80211_KEK_LEN);
|
|
memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
|
|
NL80211_KCK_LEN);
|
|
memcpy(rekey_data.replay_ctr,
|
|
nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
|
|
NL80211_REPLAY_CTR_LEN);
|
|
|
|
wdev_lock(wdev);
|
|
if (!wdev->current_bss) {
|
|
err = -ENOTCONN;
|
|
goto out;
|
|
}
|
|
|
|
if (!rdev->ops->set_rekey_data) {
|
|
err = -EOPNOTSUPP;
|
|
goto out;
|
|
}
|
|
|
|
err = rdev->ops->set_rekey_data(&rdev->wiphy, 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_nlpid)
|
|
return -EBUSY;
|
|
|
|
wdev->ap_unexpected_nlpid = info->snd_pid;
|
|
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_pid, info->snd_seq, 0,
|
|
NL80211_CMD_PROBE_CLIENT);
|
|
|
|
if (IS_ERR(hdr)) {
|
|
err = PTR_ERR(hdr);
|
|
goto free_msg;
|
|
}
|
|
|
|
addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
|
|
err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
|
|
if (err)
|
|
goto free_msg;
|
|
|
|
if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
|
|
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];
|
|
|
|
if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
|
|
return -EOPNOTSUPP;
|
|
|
|
if (rdev->ap_beacons_nlpid)
|
|
return -EBUSY;
|
|
|
|
rdev->ap_beacons_nlpid = info->snd_pid;
|
|
|
|
return 0;
|
|
}
|
|
|
|
#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 */
|
|
#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
|
|
NL80211_FLAG_CHECK_NETDEV_UP)
|
|
|
|
static int nl80211_pre_doit(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) {
|
|
mutex_lock(&cfg80211_mutex);
|
|
wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
|
|
info->attrs);
|
|
if (IS_ERR(wdev)) {
|
|
mutex_unlock(&cfg80211_mutex);
|
|
if (rtnl)
|
|
rtnl_unlock();
|
|
return PTR_ERR(wdev);
|
|
}
|
|
|
|
dev = wdev->netdev;
|
|
rdev = wiphy_to_dev(wdev->wiphy);
|
|
|
|
if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
|
|
if (!dev) {
|
|
mutex_unlock(&cfg80211_mutex);
|
|
if (rtnl)
|
|
rtnl_unlock();
|
|
return -EINVAL;
|
|
}
|
|
|
|
info->user_ptr[1] = dev;
|
|
} else {
|
|
info->user_ptr[1] = wdev;
|
|
}
|
|
|
|
if (dev) {
|
|
if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
|
|
!netif_running(dev)) {
|
|
mutex_unlock(&cfg80211_mutex);
|
|
if (rtnl)
|
|
rtnl_unlock();
|
|
return -ENETDOWN;
|
|
}
|
|
|
|
dev_hold(dev);
|
|
}
|
|
|
|
cfg80211_lock_rdev(rdev);
|
|
|
|
mutex_unlock(&cfg80211_mutex);
|
|
|
|
info->user_ptr[0] = rdev;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
if (info->user_ptr[0])
|
|
cfg80211_unlock_rdev(info->user_ptr[0]);
|
|
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();
|
|
}
|
|
|
|
static struct genl_ops nl80211_ops[] = {
|
|
{
|
|
.cmd = NL80211_CMD_GET_WIPHY,
|
|
.doit = nl80211_get_wiphy,
|
|
.dumpit = nl80211_dump_wiphy,
|
|
.policy = nl80211_policy,
|
|
/* can be retrieved by unprivileged users */
|
|
.internal_flags = NL80211_FLAG_NEED_WIPHY,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_SET_WIPHY,
|
|
.doit = nl80211_set_wiphy,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_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,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_SET_INTERFACE,
|
|
.doit = nl80211_set_interface,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_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_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_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_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_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_NEW_KEY,
|
|
.doit = nl80211_new_key,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_DEL_KEY,
|
|
.doit = nl80211_del_key,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_SET_BEACON,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_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_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_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_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_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_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_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_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_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_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_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_GET_REG,
|
|
.doit = nl80211_get_reg,
|
|
.policy = nl80211_policy,
|
|
/* can be retrieved by unprivileged users */
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_SET_REG,
|
|
.doit = nl80211_set_reg,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_REQ_SET_REG,
|
|
.doit = nl80211_req_set_reg,
|
|
.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_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_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_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_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_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_ASSOCIATE,
|
|
.doit = nl80211_associate,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_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_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_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_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_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_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_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_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_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_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_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_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_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_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_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_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_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_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_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_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_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_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_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_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_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_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_TDLS_MGMT,
|
|
.doit = nl80211_tdls_mgmt,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_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_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_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_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_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_ADMIN_PERM,
|
|
.internal_flags = NL80211_FLAG_NEED_NETDEV |
|
|
NL80211_FLAG_NEED_RTNL,
|
|
},
|
|
|
|
};
|
|
|
|
static struct genl_multicast_group nl80211_mlme_mcgrp = {
|
|
.name = "mlme",
|
|
};
|
|
|
|
/* multicast groups */
|
|
static struct genl_multicast_group nl80211_config_mcgrp = {
|
|
.name = "config",
|
|
};
|
|
static struct genl_multicast_group nl80211_scan_mcgrp = {
|
|
.name = "scan",
|
|
};
|
|
static struct genl_multicast_group nl80211_regulatory_mcgrp = {
|
|
.name = "regulatory",
|
|
};
|
|
|
|
/* notification functions */
|
|
|
|
void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
|
|
{
|
|
struct sk_buff *msg;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return;
|
|
|
|
if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
|
|
nl80211_config_mcgrp.id, 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;
|
|
|
|
ASSERT_RDEV_LOCK(rdev);
|
|
|
|
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;
|
|
|
|
return 0;
|
|
nla_put_failure:
|
|
return -ENOBUFS;
|
|
}
|
|
|
|
static int nl80211_send_scan_msg(struct sk_buff *msg,
|
|
struct cfg80211_registered_device *rdev,
|
|
struct wireless_dev *wdev,
|
|
u32 pid, u32 seq, int flags,
|
|
u32 cmd)
|
|
{
|
|
void *hdr;
|
|
|
|
hdr = nl80211hdr_put(msg, pid, 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(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
|
|
goto nla_put_failure;
|
|
|
|
/* ignore errors and send incomplete event anyway */
|
|
nl80211_add_scan_req(msg, rdev);
|
|
|
|
return genlmsg_end(msg, hdr);
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
static int
|
|
nl80211_send_sched_scan_msg(struct sk_buff *msg,
|
|
struct cfg80211_registered_device *rdev,
|
|
struct net_device *netdev,
|
|
u32 pid, u32 seq, int flags, u32 cmd)
|
|
{
|
|
void *hdr;
|
|
|
|
hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
|
|
if (!hdr)
|
|
return -1;
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
|
|
nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
|
|
goto nla_put_failure;
|
|
|
|
return genlmsg_end(msg, hdr);
|
|
|
|
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_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
|
|
NL80211_CMD_TRIGGER_SCAN) < 0) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
|
|
nl80211_scan_mcgrp.id, GFP_KERNEL);
|
|
}
|
|
|
|
void nl80211_send_scan_done(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_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
|
|
NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
|
|
nl80211_scan_mcgrp.id, GFP_KERNEL);
|
|
}
|
|
|
|
void nl80211_send_scan_aborted(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_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
|
|
NL80211_CMD_SCAN_ABORTED) < 0) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
|
|
nl80211_scan_mcgrp.id, GFP_KERNEL);
|
|
}
|
|
|
|
void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
|
|
struct net_device *netdev)
|
|
{
|
|
struct sk_buff *msg;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return;
|
|
|
|
if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
|
|
NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
|
|
nl80211_scan_mcgrp.id, GFP_KERNEL);
|
|
}
|
|
|
|
void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
|
|
struct net_device *netdev, u32 cmd)
|
|
{
|
|
struct sk_buff *msg;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return;
|
|
|
|
if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
|
|
nl80211_scan_mcgrp.id, GFP_KERNEL);
|
|
}
|
|
|
|
/*
|
|
* This can happen on global regulatory changes or device specific settings
|
|
* based on custom world regulatory domains.
|
|
*/
|
|
void nl80211_send_reg_change_event(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, NL80211_CMD_REG_CHANGE);
|
|
if (!hdr) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
/* 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 (wiphy_idx_valid(request->wiphy_idx) &&
|
|
nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
rcu_read_lock();
|
|
genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
|
|
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)
|
|
{
|
|
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(msg, NL80211_ATTR_FRAME, len, buf))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
|
|
nl80211_mlme_mcgrp.id, 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);
|
|
}
|
|
|
|
void nl80211_send_rx_assoc(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_ASSOCIATE, gfp);
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
void nl80211_send_unprot_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_UNPROT_DEAUTHENTICATE, gfp);
|
|
}
|
|
|
|
void nl80211_send_unprot_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_UNPROT_DISASSOCIATE, gfp);
|
|
}
|
|
|
|
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(wiphy_net(&rdev->wiphy), msg, 0,
|
|
nl80211_mlme_mcgrp.id, 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, const u8 *bssid,
|
|
const u8 *req_ie, size_t req_ie_len,
|
|
const u8 *resp_ie, size_t resp_ie_len,
|
|
u16 status, 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_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) ||
|
|
(bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
|
|
nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
|
|
(req_ie &&
|
|
nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
|
|
(resp_ie &&
|
|
nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
|
|
nl80211_mlme_mcgrp.id, 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, const u8 *bssid,
|
|
const u8 *req_ie, size_t req_ie_len,
|
|
const u8 *resp_ie, size_t resp_ie_len, 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_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) ||
|
|
(req_ie &&
|
|
nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
|
|
(resp_ie &&
|
|
nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
|
|
nl80211_mlme_mcgrp.id, gfp);
|
|
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(NLMSG_DEFAULT_SIZE, 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) ||
|
|
(from_ap && 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(wiphy_net(&rdev->wiphy), msg, 0,
|
|
nl80211_mlme_mcgrp.id, 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(wiphy_net(&rdev->wiphy), msg, 0,
|
|
nl80211_mlme_mcgrp.id, gfp);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
}
|
|
|
|
void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
|
|
struct net_device *netdev,
|
|
const u8 *macaddr, const u8* ie, u8 ie_len,
|
|
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_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, netdev->ifindex) ||
|
|
nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
|
|
(ie_len && ie &&
|
|
nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
|
|
nl80211_mlme_mcgrp.id, gfp);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
}
|
|
|
|
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(wiphy_net(&rdev->wiphy), msg, 0,
|
|
nl80211_mlme_mcgrp.id, 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))
|
|
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))
|
|
goto nla_put_failure;
|
|
nla_nest_end(msg, nl_freq);
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
rcu_read_lock();
|
|
genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
|
|
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,
|
|
enum nl80211_channel_type channel_type,
|
|
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(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
|
|
nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
|
|
nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type) ||
|
|
nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
|
|
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(wiphy_net(&rdev->wiphy), msg, 0,
|
|
nl80211_mlme_mcgrp.id, gfp);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
}
|
|
|
|
void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
|
|
struct wireless_dev *wdev, u64 cookie,
|
|
struct ieee80211_channel *chan,
|
|
enum nl80211_channel_type channel_type,
|
|
unsigned int duration, gfp_t gfp)
|
|
{
|
|
nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
|
|
rdev, wdev, cookie, chan,
|
|
channel_type, duration, gfp);
|
|
}
|
|
|
|
void nl80211_send_remain_on_channel_cancel(
|
|
struct cfg80211_registered_device *rdev,
|
|
struct wireless_dev *wdev,
|
|
u64 cookie, struct ieee80211_channel *chan,
|
|
enum nl80211_channel_type channel_type, gfp_t gfp)
|
|
{
|
|
nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
|
|
rdev, wdev, cookie, chan,
|
|
channel_type, 0, gfp);
|
|
}
|
|
|
|
void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
|
|
struct net_device *dev, const u8 *mac_addr,
|
|
struct station_info *sinfo, gfp_t gfp)
|
|
{
|
|
struct sk_buff *msg;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
|
|
if (!msg)
|
|
return;
|
|
|
|
if (nl80211_send_station(msg, 0, 0, 0,
|
|
rdev, dev, mac_addr, sinfo) < 0) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
|
|
nl80211_mlme_mcgrp.id, gfp);
|
|
}
|
|
|
|
void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
|
|
struct net_device *dev, const u8 *mac_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, NL80211_CMD_DEL_STATION);
|
|
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))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
|
|
nl80211_mlme_mcgrp.id, gfp);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
}
|
|
|
|
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_dev(wdev->wiphy);
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
int err;
|
|
u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid);
|
|
|
|
if (!nlpid)
|
|
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;
|
|
|
|
err = genlmsg_end(msg, hdr);
|
|
if (err < 0) {
|
|
nlmsg_free(msg);
|
|
return true;
|
|
}
|
|
|
|
genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
|
|
return true;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
return true;
|
|
}
|
|
|
|
bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
|
|
{
|
|
return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
|
|
addr, gfp);
|
|
}
|
|
|
|
bool nl80211_unexpected_4addr_frame(struct net_device *dev,
|
|
const u8 *addr, gfp_t gfp)
|
|
{
|
|
return __nl80211_unexpected_frame(dev,
|
|
NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
|
|
addr, gfp);
|
|
}
|
|
|
|
int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
|
|
struct wireless_dev *wdev, u32 nlpid,
|
|
int freq, int sig_dbm,
|
|
const u8 *buf, size_t len, gfp_t gfp)
|
|
{
|
|
struct net_device *netdev = wdev->netdev;
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, 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_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))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
return -ENOBUFS;
|
|
}
|
|
|
|
void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
|
|
struct wireless_dev *wdev, u64 cookie,
|
|
const u8 *buf, size_t len, bool ack,
|
|
gfp_t gfp)
|
|
{
|
|
struct net_device *netdev = wdev->netdev;
|
|
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_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(msg, NL80211_ATTR_FRAME, len, buf) ||
|
|
nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
|
|
(ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
}
|
|
|
|
void
|
|
nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
|
|
struct net_device *netdev,
|
|
enum nl80211_cqm_rssi_threshold_event rssi_event,
|
|
gfp_t gfp)
|
|
{
|
|
struct sk_buff *msg;
|
|
struct nlattr *pinfoattr;
|
|
void *hdr;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
|
|
if (!msg)
|
|
return;
|
|
|
|
hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
|
|
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;
|
|
|
|
pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
|
|
if (!pinfoattr)
|
|
goto nla_put_failure;
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
|
|
rssi_event))
|
|
goto nla_put_failure;
|
|
|
|
nla_nest_end(msg, pinfoattr);
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
|
|
nl80211_mlme_mcgrp.id, gfp);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
}
|
|
|
|
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(wiphy_net(&rdev->wiphy), msg, 0,
|
|
nl80211_mlme_mcgrp.id, gfp);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
}
|
|
|
|
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(wiphy_net(&rdev->wiphy), msg, 0,
|
|
nl80211_mlme_mcgrp.id, gfp);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
}
|
|
|
|
void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
|
|
struct net_device *netdev, int freq,
|
|
enum nl80211_channel_type type, 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_CH_SWITCH_NOTIFY);
|
|
if (!hdr) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
|
|
nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
|
|
nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, type))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
|
|
nl80211_mlme_mcgrp.id, gfp);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
}
|
|
|
|
void
|
|
nl80211_send_cqm_txe_notify(struct cfg80211_registered_device *rdev,
|
|
struct net_device *netdev, const u8 *peer,
|
|
u32 num_packets, u32 rate, u32 intvl, gfp_t gfp)
|
|
{
|
|
struct sk_buff *msg;
|
|
struct nlattr *pinfoattr;
|
|
void *hdr;
|
|
|
|
msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
|
|
if (!msg)
|
|
return;
|
|
|
|
hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
|
|
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, peer))
|
|
goto nla_put_failure;
|
|
|
|
pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
|
|
if (!pinfoattr)
|
|
goto nla_put_failure;
|
|
|
|
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;
|
|
|
|
nla_nest_end(msg, pinfoattr);
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
|
|
nl80211_mlme_mcgrp.id, gfp);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
}
|
|
|
|
void
|
|
nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
|
|
struct net_device *netdev, const u8 *peer,
|
|
u32 num_packets, gfp_t gfp)
|
|
{
|
|
struct sk_buff *msg;
|
|
struct nlattr *pinfoattr;
|
|
void *hdr;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
|
|
if (!msg)
|
|
return;
|
|
|
|
hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
|
|
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, peer))
|
|
goto nla_put_failure;
|
|
|
|
pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
|
|
if (!pinfoattr)
|
|
goto nla_put_failure;
|
|
|
|
if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
|
|
goto nla_put_failure;
|
|
|
|
nla_nest_end(msg, pinfoattr);
|
|
|
|
genlmsg_end(msg, hdr);
|
|
|
|
genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
|
|
nl80211_mlme_mcgrp.id, 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_dev(wdev->wiphy);
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
int err;
|
|
|
|
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(msg, NL80211_ATTR_COOKIE, cookie) ||
|
|
(acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
|
|
goto nla_put_failure;
|
|
|
|
err = genlmsg_end(msg, hdr);
|
|
if (err < 0) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
|
|
nl80211_mlme_mcgrp.id, 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, gfp_t gfp)
|
|
{
|
|
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
|
|
struct sk_buff *msg;
|
|
void *hdr;
|
|
u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid);
|
|
|
|
if (!nlpid)
|
|
return;
|
|
|
|
msg = nlmsg_new(len + 100, gfp);
|
|
if (!msg)
|
|
return;
|
|
|
|
hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
|
|
if (!hdr) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
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, nlpid);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
nlmsg_free(msg);
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_report_obss_beacon);
|
|
|
|
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;
|
|
|
|
if (state != NETLINK_URELEASE)
|
|
return NOTIFY_DONE;
|
|
|
|
rcu_read_lock();
|
|
|
|
list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
|
|
list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
|
|
cfg80211_mlme_unregister_socket(wdev, notify->pid);
|
|
if (rdev->ap_beacons_nlpid == notify->pid)
|
|
rdev->ap_beacons_nlpid = 0;
|
|
}
|
|
|
|
rcu_read_unlock();
|
|
|
|
return NOTIFY_DONE;
|
|
}
|
|
|
|
static struct notifier_block nl80211_netlink_notifier = {
|
|
.notifier_call = nl80211_netlink_notify,
|
|
};
|
|
|
|
/* initialisation/exit functions */
|
|
|
|
int nl80211_init(void)
|
|
{
|
|
int err;
|
|
|
|
err = genl_register_family_with_ops(&nl80211_fam,
|
|
nl80211_ops, ARRAY_SIZE(nl80211_ops));
|
|
if (err)
|
|
return err;
|
|
|
|
err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
|
|
if (err)
|
|
goto err_out;
|
|
|
|
err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
|
|
if (err)
|
|
goto err_out;
|
|
|
|
err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
|
|
if (err)
|
|
goto err_out;
|
|
|
|
err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
|
|
if (err)
|
|
goto err_out;
|
|
|
|
#ifdef CONFIG_NL80211_TESTMODE
|
|
err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
|
|
if (err)
|
|
goto err_out;
|
|
#endif
|
|
|
|
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);
|
|
}
|