2007-04-23 13:20:05 -06:00
|
|
|
/*
|
|
|
|
* This is the linux wireless configuration interface.
|
|
|
|
*
|
2010-01-17 07:49:02 -07:00
|
|
|
* Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
|
2014-09-03 06:24:58 -06:00
|
|
|
* Copyright 2013-2014 Intel Mobile Communications GmbH
|
2007-04-23 13:20:05 -06:00
|
|
|
*/
|
|
|
|
|
2010-11-16 20:56:49 -07:00
|
|
|
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
|
|
|
|
|
2007-04-23 13:20:05 -06:00
|
|
|
#include <linux/if.h>
|
|
|
|
#include <linux/module.h>
|
|
|
|
#include <linux/err.h>
|
|
|
|
#include <linux/list.h>
|
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 02:04:11 -06:00
|
|
|
#include <linux/slab.h>
|
2007-04-23 13:20:05 -06:00
|
|
|
#include <linux/nl80211.h>
|
|
|
|
#include <linux/debugfs.h>
|
|
|
|
#include <linux/notifier.h>
|
|
|
|
#include <linux/device.h>
|
2009-08-19 02:08:22 -06:00
|
|
|
#include <linux/etherdevice.h>
|
2009-06-02 05:01:41 -06:00
|
|
|
#include <linux/rtnetlink.h>
|
2009-10-07 07:09:06 -06:00
|
|
|
#include <linux/sched.h>
|
2007-04-23 13:20:05 -06:00
|
|
|
#include <net/genetlink.h>
|
|
|
|
#include <net/cfg80211.h>
|
2007-09-20 11:09:35 -06:00
|
|
|
#include "nl80211.h"
|
2007-04-23 13:20:05 -06:00
|
|
|
#include "core.h"
|
|
|
|
#include "sysfs.h"
|
2009-05-01 22:37:21 -06:00
|
|
|
#include "debugfs.h"
|
2009-07-27 04:01:53 -06:00
|
|
|
#include "wext-compat.h"
|
2012-06-27 08:19:42 -06:00
|
|
|
#include "rdev-ops.h"
|
2007-04-23 13:20:05 -06:00
|
|
|
|
|
|
|
/* name for sysfs, %d is appended */
|
|
|
|
#define PHY_NAME "phy"
|
|
|
|
|
|
|
|
MODULE_AUTHOR("Johannes Berg");
|
|
|
|
MODULE_LICENSE("GPL");
|
|
|
|
MODULE_DESCRIPTION("wireless configuration support");
|
2013-04-28 17:22:06 -06:00
|
|
|
MODULE_ALIAS_GENL_FAMILY(NL80211_GENL_NAME);
|
2007-04-23 13:20:05 -06:00
|
|
|
|
2013-05-08 13:45:15 -06:00
|
|
|
/* RCU-protected (and RTNL for writers) */
|
2009-07-06 19:56:12 -06:00
|
|
|
LIST_HEAD(cfg80211_rdev_list);
|
2009-08-07 08:17:38 -06:00
|
|
|
int cfg80211_rdev_list_generation;
|
2009-02-20 22:04:21 -07:00
|
|
|
|
2007-04-23 13:20:05 -06:00
|
|
|
/* for debugfs */
|
|
|
|
static struct dentry *ieee80211_debugfs_dir;
|
|
|
|
|
2009-11-25 07:13:00 -07:00
|
|
|
/* for the cleanup, scan and event works */
|
|
|
|
struct workqueue_struct *cfg80211_wq;
|
|
|
|
|
2011-04-21 15:10:27 -06:00
|
|
|
static bool cfg80211_disable_40mhz_24ghz;
|
|
|
|
module_param(cfg80211_disable_40mhz_24ghz, bool, 0644);
|
|
|
|
MODULE_PARM_DESC(cfg80211_disable_40mhz_24ghz,
|
|
|
|
"Disable 40MHz support in the 2.4GHz band");
|
|
|
|
|
2009-07-06 19:56:12 -06:00
|
|
|
struct cfg80211_registered_device *cfg80211_rdev_by_wiphy_idx(int wiphy_idx)
|
2007-09-20 11:09:35 -06:00
|
|
|
{
|
2009-07-06 19:56:12 -06:00
|
|
|
struct cfg80211_registered_device *result = NULL, *rdev;
|
2007-09-20 11:09:35 -06:00
|
|
|
|
2013-05-08 13:45:15 -06:00
|
|
|
ASSERT_RTNL();
|
2009-02-20 22:04:25 -07:00
|
|
|
|
2009-07-06 19:56:12 -06:00
|
|
|
list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
|
|
|
|
if (rdev->wiphy_idx == wiphy_idx) {
|
|
|
|
result = rdev;
|
2007-09-20 11:09:35 -06:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2009-02-20 22:04:26 -07:00
|
|
|
int get_wiphy_idx(struct wiphy *wiphy)
|
|
|
|
{
|
2014-04-20 22:53:03 -06:00
|
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
|
2012-12-03 10:23:37 -07:00
|
|
|
|
2009-07-06 19:56:12 -06:00
|
|
|
return rdev->wiphy_idx;
|
2009-02-20 22:04:26 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx)
|
|
|
|
{
|
2009-07-06 19:56:12 -06:00
|
|
|
struct cfg80211_registered_device *rdev;
|
2009-02-20 22:04:26 -07:00
|
|
|
|
2013-05-08 13:45:15 -06:00
|
|
|
ASSERT_RTNL();
|
2009-02-20 22:04:26 -07:00
|
|
|
|
2009-07-06 19:56:12 -06:00
|
|
|
rdev = cfg80211_rdev_by_wiphy_idx(wiphy_idx);
|
|
|
|
if (!rdev)
|
2009-02-20 22:04:26 -07:00
|
|
|
return NULL;
|
2009-07-06 19:56:12 -06:00
|
|
|
return &rdev->wiphy;
|
2009-02-20 22:04:26 -07:00
|
|
|
}
|
|
|
|
|
2007-09-20 11:09:35 -06:00
|
|
|
int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
|
|
|
|
char *newname)
|
|
|
|
{
|
2009-07-06 19:56:12 -06:00
|
|
|
struct cfg80211_registered_device *rdev2;
|
2010-10-11 12:46:52 -06:00
|
|
|
int wiphy_idx, taken = -1, result, digits;
|
2007-09-20 11:09:35 -06:00
|
|
|
|
2013-05-08 13:45:15 -06:00
|
|
|
ASSERT_RTNL();
|
2008-05-08 15:30:18 -06:00
|
|
|
|
2010-10-11 12:46:52 -06:00
|
|
|
/* prohibit calling the thing phy%d when %d is not its number */
|
|
|
|
sscanf(newname, PHY_NAME "%d%n", &wiphy_idx, &taken);
|
|
|
|
if (taken == strlen(newname) && wiphy_idx != rdev->wiphy_idx) {
|
|
|
|
/* count number of places needed to print wiphy_idx */
|
|
|
|
digits = 1;
|
|
|
|
while (wiphy_idx /= 10)
|
|
|
|
digits++;
|
|
|
|
/*
|
|
|
|
* deny the name if it is phy<idx> where <idx> is printed
|
|
|
|
* without leading zeroes. taken == strlen(newname) here
|
|
|
|
*/
|
|
|
|
if (taken == strlen(PHY_NAME) + digits)
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2008-05-08 15:30:18 -06:00
|
|
|
/* Ignore nop renames */
|
|
|
|
if (strcmp(newname, dev_name(&rdev->wiphy.dev)) == 0)
|
2009-03-24 02:35:46 -06:00
|
|
|
return 0;
|
2008-05-08 15:30:18 -06:00
|
|
|
|
|
|
|
/* Ensure another device does not already have this name. */
|
2009-07-06 19:56:12 -06:00
|
|
|
list_for_each_entry(rdev2, &cfg80211_rdev_list, list)
|
|
|
|
if (strcmp(newname, dev_name(&rdev2->wiphy.dev)) == 0)
|
2010-10-11 12:46:52 -06:00
|
|
|
return -EINVAL;
|
2007-09-20 11:09:35 -06:00
|
|
|
|
|
|
|
result = device_rename(&rdev->wiphy.dev, newname);
|
|
|
|
if (result)
|
2009-03-24 02:35:46 -06:00
|
|
|
return result;
|
2007-09-20 11:09:35 -06:00
|
|
|
|
2008-10-08 02:23:48 -06:00
|
|
|
if (rdev->wiphy.debugfsdir &&
|
|
|
|
!debugfs_rename(rdev->wiphy.debugfsdir->d_parent,
|
2007-09-20 11:09:35 -06:00
|
|
|
rdev->wiphy.debugfsdir,
|
|
|
|
rdev->wiphy.debugfsdir->d_parent,
|
|
|
|
newname))
|
2010-11-16 20:56:49 -07:00
|
|
|
pr_err("failed to rename debugfs dir to %s!\n", newname);
|
2007-09-20 11:09:35 -06:00
|
|
|
|
2014-05-26 05:52:25 -06:00
|
|
|
nl80211_notify_wiphy(rdev, NL80211_CMD_NEW_WIPHY);
|
2007-09-20 11:09:35 -06:00
|
|
|
|
2009-03-24 02:35:46 -06:00
|
|
|
return 0;
|
2007-09-20 11:09:35 -06:00
|
|
|
}
|
|
|
|
|
2009-07-13 16:33:35 -06:00
|
|
|
int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
|
|
|
|
struct net *net)
|
|
|
|
{
|
|
|
|
struct wireless_dev *wdev;
|
|
|
|
int err = 0;
|
|
|
|
|
2009-11-18 16:56:28 -07:00
|
|
|
if (!(rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK))
|
2009-07-13 16:33:35 -06:00
|
|
|
return -EOPNOTSUPP;
|
|
|
|
|
2012-06-15 06:33:17 -06:00
|
|
|
list_for_each_entry(wdev, &rdev->wdev_list, list) {
|
2012-06-15 10:00:00 -06:00
|
|
|
if (!wdev->netdev)
|
|
|
|
continue;
|
2009-07-13 16:33:35 -06:00
|
|
|
wdev->netdev->features &= ~NETIF_F_NETNS_LOCAL;
|
|
|
|
err = dev_change_net_namespace(wdev->netdev, net, "wlan%d");
|
|
|
|
if (err)
|
|
|
|
break;
|
|
|
|
wdev->netdev->features |= NETIF_F_NETNS_LOCAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (err) {
|
|
|
|
/* failed -- clean up to old netns */
|
|
|
|
net = wiphy_net(&rdev->wiphy);
|
|
|
|
|
2012-06-15 06:33:17 -06:00
|
|
|
list_for_each_entry_continue_reverse(wdev, &rdev->wdev_list,
|
2009-07-13 16:33:35 -06:00
|
|
|
list) {
|
2012-06-15 10:00:00 -06:00
|
|
|
if (!wdev->netdev)
|
|
|
|
continue;
|
2009-07-13 16:33:35 -06:00
|
|
|
wdev->netdev->features &= ~NETIF_F_NETNS_LOCAL;
|
|
|
|
err = dev_change_net_namespace(wdev->netdev, net,
|
|
|
|
"wlan%d");
|
|
|
|
WARN_ON(err);
|
|
|
|
wdev->netdev->features |= NETIF_F_NETNS_LOCAL;
|
|
|
|
}
|
2010-08-05 09:45:15 -06:00
|
|
|
|
|
|
|
return err;
|
2009-07-13 16:33:35 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
wiphy_net_set(&rdev->wiphy, net);
|
|
|
|
|
2010-08-05 09:45:15 -06:00
|
|
|
err = device_rename(&rdev->wiphy.dev, dev_name(&rdev->wiphy.dev));
|
|
|
|
WARN_ON(err);
|
|
|
|
|
|
|
|
return 0;
|
2009-07-13 16:33:35 -06:00
|
|
|
}
|
|
|
|
|
2009-06-02 05:01:41 -06:00
|
|
|
static void cfg80211_rfkill_poll(struct rfkill *rfkill, void *data)
|
|
|
|
{
|
2009-07-06 19:56:12 -06:00
|
|
|
struct cfg80211_registered_device *rdev = data;
|
2009-06-02 05:01:41 -06:00
|
|
|
|
2012-06-27 08:19:42 -06:00
|
|
|
rdev_rfkill_poll(rdev);
|
2009-06-02 05:01:41 -06:00
|
|
|
}
|
|
|
|
|
2013-03-19 08:04:07 -06:00
|
|
|
void cfg80211_stop_p2p_device(struct cfg80211_registered_device *rdev,
|
|
|
|
struct wireless_dev *wdev)
|
|
|
|
{
|
2013-05-08 13:45:15 -06:00
|
|
|
ASSERT_RTNL();
|
2013-03-19 08:04:07 -06:00
|
|
|
|
|
|
|
if (WARN_ON(wdev->iftype != NL80211_IFTYPE_P2P_DEVICE))
|
|
|
|
return;
|
|
|
|
|
|
|
|
if (!wdev->p2p_started)
|
|
|
|
return;
|
|
|
|
|
|
|
|
rdev_stop_p2p_device(rdev, wdev);
|
|
|
|
wdev->p2p_started = false;
|
|
|
|
|
|
|
|
rdev->opencount--;
|
|
|
|
|
2014-01-22 02:14:18 -07:00
|
|
|
if (rdev->scan_req && rdev->scan_req->wdev == wdev) {
|
|
|
|
if (WARN_ON(!rdev->scan_req->notified))
|
|
|
|
rdev->scan_req->aborted = true;
|
cfg80211: send scan results from work queue
Due to the previous commit, when a scan finishes, it is in theory
possible to hit the following sequence:
1. interface starts being removed
2. scan is cancelled by driver and cfg80211 is notified
3. scan done work is scheduled
4. interface is removed completely, rdev->scan_req is freed,
event sent to userspace but scan done work remains pending
5. new scan is requested on another virtual interface
6. scan done work runs, freeing the still-running scan
To fix this situation, hang on to the scan done message and block
new scans while that is the case, and only send the message from
the work function, regardless of whether the scan_req is already
freed from interface removal. This makes step 5 above impossible
and changes step 6 to be
5. scan done work runs, sending the scan done message
As this can't work for wext, so we send the message immediately,
but this shouldn't be an issue since we still return -EBUSY.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-01-22 02:14:19 -07:00
|
|
|
___cfg80211_scan_done(rdev, false);
|
2014-01-22 02:14:18 -07:00
|
|
|
}
|
2013-03-19 08:04:07 -06:00
|
|
|
}
|
|
|
|
|
2014-04-30 06:19:04 -06:00
|
|
|
void cfg80211_shutdown_all_interfaces(struct wiphy *wiphy)
|
2009-06-02 05:01:41 -06:00
|
|
|
{
|
2014-04-30 06:19:04 -06:00
|
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
|
2009-06-02 05:01:41 -06:00
|
|
|
struct wireless_dev *wdev;
|
|
|
|
|
2014-04-30 06:19:04 -06:00
|
|
|
ASSERT_RTNL();
|
2013-03-19 08:04:07 -06:00
|
|
|
|
2012-06-15 16:19:54 -06:00
|
|
|
list_for_each_entry(wdev, &rdev->wdev_list, list) {
|
|
|
|
if (wdev->netdev) {
|
2012-06-15 10:00:00 -06:00
|
|
|
dev_close(wdev->netdev);
|
2012-06-15 16:19:54 -06:00
|
|
|
continue;
|
|
|
|
}
|
|
|
|
/* otherwise, check iftype */
|
|
|
|
switch (wdev->iftype) {
|
|
|
|
case NL80211_IFTYPE_P2P_DEVICE:
|
2013-03-19 08:04:07 -06:00
|
|
|
cfg80211_stop_p2p_device(rdev, wdev);
|
2012-06-15 16:19:54 -06:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
2014-04-30 06:19:04 -06:00
|
|
|
}
|
|
|
|
EXPORT_SYMBOL_GPL(cfg80211_shutdown_all_interfaces);
|
2009-06-02 05:01:41 -06:00
|
|
|
|
2014-04-30 06:19:04 -06:00
|
|
|
static int cfg80211_rfkill_set_block(void *data, bool blocked)
|
|
|
|
{
|
|
|
|
struct cfg80211_registered_device *rdev = data;
|
|
|
|
|
|
|
|
if (!blocked)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
rtnl_lock();
|
|
|
|
cfg80211_shutdown_all_interfaces(&rdev->wiphy);
|
2009-06-02 05:01:41 -06:00
|
|
|
rtnl_unlock();
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void cfg80211_rfkill_sync_work(struct work_struct *work)
|
|
|
|
{
|
2009-07-06 19:56:12 -06:00
|
|
|
struct cfg80211_registered_device *rdev;
|
2009-06-02 05:01:41 -06:00
|
|
|
|
2009-07-06 19:56:12 -06:00
|
|
|
rdev = container_of(work, struct cfg80211_registered_device, rfkill_sync);
|
|
|
|
cfg80211_rfkill_set_block(rdev, rfkill_blocked(rdev->rfkill));
|
2009-06-02 05:01:41 -06:00
|
|
|
}
|
|
|
|
|
2009-07-06 19:56:11 -06:00
|
|
|
static void cfg80211_event_work(struct work_struct *work)
|
|
|
|
{
|
|
|
|
struct cfg80211_registered_device *rdev;
|
|
|
|
|
|
|
|
rdev = container_of(work, struct cfg80211_registered_device,
|
|
|
|
event_work);
|
|
|
|
|
|
|
|
rtnl_lock();
|
2009-08-21 06:51:05 -06:00
|
|
|
cfg80211_process_rdev_events(rdev);
|
2009-07-06 19:56:11 -06:00
|
|
|
rtnl_unlock();
|
|
|
|
}
|
|
|
|
|
2014-03-24 10:57:27 -06:00
|
|
|
void cfg80211_destroy_ifaces(struct cfg80211_registered_device *rdev)
|
|
|
|
{
|
|
|
|
struct cfg80211_iface_destroy *item;
|
|
|
|
|
|
|
|
ASSERT_RTNL();
|
|
|
|
|
|
|
|
spin_lock_irq(&rdev->destroy_list_lock);
|
|
|
|
while ((item = list_first_entry_or_null(&rdev->destroy_list,
|
|
|
|
struct cfg80211_iface_destroy,
|
|
|
|
list))) {
|
|
|
|
struct wireless_dev *wdev, *tmp;
|
|
|
|
u32 nlportid = item->nlportid;
|
|
|
|
|
|
|
|
list_del(&item->list);
|
|
|
|
kfree(item);
|
|
|
|
spin_unlock_irq(&rdev->destroy_list_lock);
|
|
|
|
|
|
|
|
list_for_each_entry_safe(wdev, tmp, &rdev->wdev_list, list) {
|
|
|
|
if (nlportid == wdev->owner_nlportid)
|
|
|
|
rdev_del_virtual_intf(rdev, wdev);
|
|
|
|
}
|
|
|
|
|
|
|
|
spin_lock_irq(&rdev->destroy_list_lock);
|
|
|
|
}
|
|
|
|
spin_unlock_irq(&rdev->destroy_list_lock);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void cfg80211_destroy_iface_wk(struct work_struct *work)
|
|
|
|
{
|
|
|
|
struct cfg80211_registered_device *rdev;
|
|
|
|
|
|
|
|
rdev = container_of(work, struct cfg80211_registered_device,
|
|
|
|
destroy_work);
|
|
|
|
|
|
|
|
rtnl_lock();
|
|
|
|
cfg80211_destroy_ifaces(rdev);
|
|
|
|
rtnl_unlock();
|
|
|
|
}
|
|
|
|
|
2007-04-23 13:20:05 -06:00
|
|
|
/* exported functions */
|
|
|
|
|
2009-05-16 16:13:46 -06:00
|
|
|
struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv)
|
2007-04-23 13:20:05 -06:00
|
|
|
{
|
2013-05-08 13:49:02 -06:00
|
|
|
static atomic_t wiphy_counter = ATOMIC_INIT(0);
|
2010-10-11 12:46:52 -06:00
|
|
|
|
|
|
|
struct cfg80211_registered_device *rdev;
|
2007-04-23 13:20:05 -06:00
|
|
|
int alloc_size;
|
|
|
|
|
2009-07-06 19:56:13 -06:00
|
|
|
WARN_ON(ops->add_key && (!ops->del_key || !ops->set_default_key));
|
|
|
|
WARN_ON(ops->auth && (!ops->assoc || !ops->deauth || !ops->disassoc));
|
|
|
|
WARN_ON(ops->connect && !ops->disconnect);
|
|
|
|
WARN_ON(ops->join_ibss && !ops->leave_ibss);
|
|
|
|
WARN_ON(ops->add_virtual_intf && !ops->del_virtual_intf);
|
|
|
|
WARN_ON(ops->add_station && !ops->del_station);
|
|
|
|
WARN_ON(ops->add_mpath && !ops->del_mpath);
|
2010-12-03 01:20:44 -07:00
|
|
|
WARN_ON(ops->join_mesh && !ops->leave_mesh);
|
2007-12-18 18:03:29 -07:00
|
|
|
|
2009-07-06 19:56:12 -06:00
|
|
|
alloc_size = sizeof(*rdev) + sizeof_priv;
|
2007-04-23 13:20:05 -06:00
|
|
|
|
2009-07-06 19:56:12 -06:00
|
|
|
rdev = kzalloc(alloc_size, GFP_KERNEL);
|
|
|
|
if (!rdev)
|
2007-04-23 13:20:05 -06:00
|
|
|
return NULL;
|
|
|
|
|
2009-07-06 19:56:12 -06:00
|
|
|
rdev->ops = ops;
|
2007-04-23 13:20:05 -06:00
|
|
|
|
2013-05-08 13:49:02 -06:00
|
|
|
rdev->wiphy_idx = atomic_inc_return(&wiphy_counter);
|
2007-04-26 21:50:35 -06:00
|
|
|
|
2012-12-03 10:23:37 -07:00
|
|
|
if (unlikely(rdev->wiphy_idx < 0)) {
|
2010-10-11 12:46:52 -06:00
|
|
|
/* ugh, wrapped! */
|
2013-05-08 13:49:02 -06:00
|
|
|
atomic_dec(&wiphy_counter);
|
2009-07-06 19:56:12 -06:00
|
|
|
kfree(rdev);
|
2007-04-23 13:20:05 -06:00
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
2013-06-04 14:23:36 -06:00
|
|
|
/* atomic_inc_return makes it start at 1, make it start at 0 */
|
|
|
|
rdev->wiphy_idx--;
|
|
|
|
|
2010-10-11 12:46:52 -06:00
|
|
|
/* give it a proper name */
|
|
|
|
dev_set_name(&rdev->wiphy.dev, PHY_NAME "%d", rdev->wiphy_idx);
|
|
|
|
|
2012-06-15 06:33:17 -06:00
|
|
|
INIT_LIST_HEAD(&rdev->wdev_list);
|
2012-10-26 15:49:25 -06:00
|
|
|
INIT_LIST_HEAD(&rdev->beacon_registrations);
|
|
|
|
spin_lock_init(&rdev->beacon_registrations_lock);
|
2009-07-06 19:56:12 -06:00
|
|
|
spin_lock_init(&rdev->bss_lock);
|
|
|
|
INIT_LIST_HEAD(&rdev->bss_list);
|
|
|
|
INIT_WORK(&rdev->scan_done_wk, __cfg80211_scan_done);
|
2011-05-11 08:09:35 -06:00
|
|
|
INIT_WORK(&rdev->sched_scan_results_wk, __cfg80211_sched_scan_results);
|
2013-02-08 10:16:19 -07:00
|
|
|
INIT_DELAYED_WORK(&rdev->dfs_update_channels_wk,
|
|
|
|
cfg80211_dfs_channels_update_work);
|
2009-09-29 15:27:28 -06:00
|
|
|
#ifdef CONFIG_CFG80211_WEXT
|
|
|
|
rdev->wiphy.wext = &cfg80211_wext_handler;
|
|
|
|
#endif
|
|
|
|
|
2009-07-06 19:56:12 -06:00
|
|
|
device_initialize(&rdev->wiphy.dev);
|
|
|
|
rdev->wiphy.dev.class = &ieee80211_class;
|
|
|
|
rdev->wiphy.dev.platform_data = rdev;
|
|
|
|
|
2014-03-24 10:57:27 -06:00
|
|
|
INIT_LIST_HEAD(&rdev->destroy_list);
|
|
|
|
spin_lock_init(&rdev->destroy_list_lock);
|
|
|
|
INIT_WORK(&rdev->destroy_work, cfg80211_destroy_iface_wk);
|
|
|
|
|
2009-11-18 16:56:28 -07:00
|
|
|
#ifdef CONFIG_CFG80211_DEFAULT_PS
|
|
|
|
rdev->wiphy.flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
|
|
|
|
#endif
|
2009-08-12 15:33:20 -06:00
|
|
|
|
2009-07-13 16:33:35 -06:00
|
|
|
wiphy_net_set(&rdev->wiphy, &init_net);
|
|
|
|
|
2009-07-06 19:56:12 -06:00
|
|
|
rdev->rfkill_ops.set_block = cfg80211_rfkill_set_block;
|
|
|
|
rdev->rfkill = rfkill_alloc(dev_name(&rdev->wiphy.dev),
|
|
|
|
&rdev->wiphy.dev, RFKILL_TYPE_WLAN,
|
|
|
|
&rdev->rfkill_ops, rdev);
|
|
|
|
|
|
|
|
if (!rdev->rfkill) {
|
|
|
|
kfree(rdev);
|
2009-06-02 05:01:41 -06:00
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
2009-07-06 19:56:12 -06:00
|
|
|
INIT_WORK(&rdev->rfkill_sync, cfg80211_rfkill_sync_work);
|
|
|
|
INIT_WORK(&rdev->conn_work, cfg80211_conn_work);
|
|
|
|
INIT_WORK(&rdev->event_work, cfg80211_event_work);
|
2009-06-02 05:01:41 -06:00
|
|
|
|
2009-08-18 11:51:57 -06:00
|
|
|
init_waitqueue_head(&rdev->dev_wait);
|
|
|
|
|
2009-04-20 10:39:05 -06:00
|
|
|
/*
|
|
|
|
* Initialize wiphy parameters to IEEE 802.11 MIB default values.
|
|
|
|
* Fragmentation and RTS threshold are disabled by default with the
|
|
|
|
* special -1 value.
|
|
|
|
*/
|
2009-07-06 19:56:12 -06:00
|
|
|
rdev->wiphy.retry_short = 7;
|
|
|
|
rdev->wiphy.retry_long = 4;
|
|
|
|
rdev->wiphy.frag_threshold = (u32) -1;
|
|
|
|
rdev->wiphy.rts_threshold = (u32) -1;
|
2009-12-21 14:50:47 -07:00
|
|
|
rdev->wiphy.coverage_class = 0;
|
2009-04-20 10:39:05 -06:00
|
|
|
|
2014-05-09 05:11:46 -06:00
|
|
|
rdev->wiphy.max_num_csa_counters = 1;
|
|
|
|
|
2009-07-06 19:56:12 -06:00
|
|
|
return &rdev->wiphy;
|
2007-04-23 13:20:05 -06:00
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(wiphy_new);
|
|
|
|
|
2011-05-13 02:58:57 -06:00
|
|
|
static int wiphy_verify_combinations(struct wiphy *wiphy)
|
|
|
|
{
|
|
|
|
const struct ieee80211_iface_combination *c;
|
|
|
|
int i, j;
|
|
|
|
|
|
|
|
for (i = 0; i < wiphy->n_iface_combinations; i++) {
|
|
|
|
u32 cnt = 0;
|
|
|
|
u16 all_iftypes = 0;
|
|
|
|
|
|
|
|
c = &wiphy->iface_combinations[i];
|
|
|
|
|
2013-01-08 06:04:07 -07:00
|
|
|
/*
|
|
|
|
* Combinations with just one interface aren't real,
|
|
|
|
* however we make an exception for DFS.
|
|
|
|
*/
|
|
|
|
if (WARN_ON((c->max_interfaces < 2) && !c->radar_detect_widths))
|
2011-05-13 02:58:57 -06:00
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
/* Need at least one channel */
|
|
|
|
if (WARN_ON(!c->num_different_channels))
|
|
|
|
return -EINVAL;
|
|
|
|
|
2012-06-29 04:47:07 -06:00
|
|
|
/*
|
|
|
|
* Put a sane limit on maximum number of different
|
|
|
|
* channels to simplify channel accounting code.
|
|
|
|
*/
|
|
|
|
if (WARN_ON(c->num_different_channels >
|
|
|
|
CFG80211_MAX_NUM_DIFFERENT_CHANNELS))
|
|
|
|
return -EINVAL;
|
|
|
|
|
2013-01-08 06:04:07 -07:00
|
|
|
/* DFS only works on one channel. */
|
|
|
|
if (WARN_ON(c->radar_detect_widths &&
|
|
|
|
(c->num_different_channels > 1)))
|
|
|
|
return -EINVAL;
|
|
|
|
|
2011-05-13 02:58:57 -06:00
|
|
|
if (WARN_ON(!c->n_limits))
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
for (j = 0; j < c->n_limits; j++) {
|
|
|
|
u16 types = c->limits[j].types;
|
|
|
|
|
2014-02-27 02:07:21 -07:00
|
|
|
/* interface types shouldn't overlap */
|
2011-05-13 02:58:57 -06:00
|
|
|
if (WARN_ON(types & all_iftypes))
|
|
|
|
return -EINVAL;
|
|
|
|
all_iftypes |= types;
|
|
|
|
|
|
|
|
if (WARN_ON(!c->limits[j].max))
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
/* Shouldn't list software iftypes in combinations! */
|
|
|
|
if (WARN_ON(wiphy->software_iftypes & types))
|
|
|
|
return -EINVAL;
|
|
|
|
|
2012-06-15 16:19:54 -06:00
|
|
|
/* Only a single P2P_DEVICE can be allowed */
|
|
|
|
if (WARN_ON(types & BIT(NL80211_IFTYPE_P2P_DEVICE) &&
|
|
|
|
c->limits[j].max > 1))
|
|
|
|
return -EINVAL;
|
|
|
|
|
2011-05-13 02:58:57 -06:00
|
|
|
cnt += c->limits[j].max;
|
|
|
|
/*
|
|
|
|
* Don't advertise an unsupported type
|
|
|
|
* in a combination.
|
|
|
|
*/
|
|
|
|
if (WARN_ON((wiphy->interface_modes & types) != types))
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* You can't even choose that many! */
|
|
|
|
if (WARN_ON(cnt < c->max_interfaces))
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2007-04-23 13:20:05 -06:00
|
|
|
int wiphy_register(struct wiphy *wiphy)
|
|
|
|
{
|
2014-04-20 22:53:03 -06:00
|
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
|
2007-04-23 13:20:05 -06:00
|
|
|
int res;
|
2008-01-24 11:38:38 -07:00
|
|
|
enum ieee80211_band band;
|
|
|
|
struct ieee80211_supported_band *sband;
|
|
|
|
bool have_band = false;
|
|
|
|
int i;
|
2008-08-29 17:26:43 -06:00
|
|
|
u16 ifmodes = wiphy->interface_modes;
|
|
|
|
|
2012-06-27 01:23:48 -06:00
|
|
|
#ifdef CONFIG_PM
|
2013-06-03 09:25:34 -06:00
|
|
|
if (WARN_ON(wiphy->wowlan &&
|
|
|
|
(wiphy->wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
|
|
|
|
!(wiphy->wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY)))
|
|
|
|
return -EINVAL;
|
|
|
|
if (WARN_ON(wiphy->wowlan &&
|
|
|
|
!wiphy->wowlan->flags && !wiphy->wowlan->n_patterns &&
|
|
|
|
!wiphy->wowlan->tcp))
|
2011-07-13 02:48:55 -06:00
|
|
|
return -EINVAL;
|
2012-06-27 01:23:48 -06:00
|
|
|
#endif
|
2011-07-13 02:48:55 -06:00
|
|
|
|
2013-06-28 12:51:26 -06:00
|
|
|
if (WARN_ON(wiphy->coalesce &&
|
|
|
|
(!wiphy->coalesce->n_rules ||
|
|
|
|
!wiphy->coalesce->n_patterns) &&
|
|
|
|
(!wiphy->coalesce->pattern_min_len ||
|
|
|
|
wiphy->coalesce->pattern_min_len >
|
|
|
|
wiphy->coalesce->pattern_max_len)))
|
|
|
|
return -EINVAL;
|
|
|
|
|
2011-11-07 04:39:33 -07:00
|
|
|
if (WARN_ON(wiphy->ap_sme_capa &&
|
|
|
|
!(wiphy->flags & WIPHY_FLAG_HAVE_AP_SME)))
|
|
|
|
return -EINVAL;
|
|
|
|
|
2010-01-20 04:02:33 -07:00
|
|
|
if (WARN_ON(wiphy->addresses && !wiphy->n_addresses))
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
if (WARN_ON(wiphy->addresses &&
|
|
|
|
!is_zero_ether_addr(wiphy->perm_addr) &&
|
|
|
|
memcmp(wiphy->perm_addr, wiphy->addresses[0].addr,
|
|
|
|
ETH_ALEN)))
|
|
|
|
return -EINVAL;
|
|
|
|
|
2013-01-17 22:48:45 -07:00
|
|
|
if (WARN_ON(wiphy->max_acl_mac_addrs &&
|
|
|
|
(!(wiphy->flags & WIPHY_FLAG_HAVE_AP_SME) ||
|
|
|
|
!rdev->ops->set_mac_acl)))
|
|
|
|
return -EINVAL;
|
|
|
|
|
2010-01-20 04:02:33 -07:00
|
|
|
if (wiphy->addresses)
|
|
|
|
memcpy(wiphy->perm_addr, wiphy->addresses[0].addr, ETH_ALEN);
|
|
|
|
|
2008-08-29 17:26:43 -06:00
|
|
|
/* sanity check ifmodes */
|
|
|
|
WARN_ON(!ifmodes);
|
2010-08-12 07:38:38 -06:00
|
|
|
ifmodes &= ((1 << NUM_NL80211_IFTYPES) - 1) & ~1;
|
2008-08-29 17:26:43 -06:00
|
|
|
if (WARN_ON(ifmodes != wiphy->interface_modes))
|
|
|
|
wiphy->interface_modes = ifmodes;
|
2008-01-24 11:38:38 -07:00
|
|
|
|
2011-05-13 02:58:57 -06:00
|
|
|
res = wiphy_verify_combinations(wiphy);
|
|
|
|
if (res)
|
|
|
|
return res;
|
|
|
|
|
2008-01-24 11:38:38 -07:00
|
|
|
/* sanity check supported bands/channels */
|
|
|
|
for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
|
|
|
|
sband = wiphy->bands[band];
|
|
|
|
if (!sband)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
sband->band = band;
|
2012-07-02 00:32:32 -06:00
|
|
|
if (WARN_ON(!sband->n_channels))
|
|
|
|
return -EINVAL;
|
|
|
|
/*
|
|
|
|
* on 60gHz band, there are no legacy rates, so
|
|
|
|
* n_bitrates is 0
|
|
|
|
*/
|
|
|
|
if (WARN_ON(band != IEEE80211_BAND_60GHZ &&
|
|
|
|
!sband->n_bitrates))
|
2009-01-21 07:13:48 -07:00
|
|
|
return -EINVAL;
|
|
|
|
|
2011-04-21 15:10:27 -06:00
|
|
|
/*
|
|
|
|
* Since cfg80211_disable_40mhz_24ghz is global, we can
|
|
|
|
* modify the sband's ht data even if the driver uses a
|
|
|
|
* global structure for that.
|
|
|
|
*/
|
|
|
|
if (cfg80211_disable_40mhz_24ghz &&
|
|
|
|
band == IEEE80211_BAND_2GHZ &&
|
|
|
|
sband->ht_cap.ht_supported) {
|
|
|
|
sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
|
|
|
|
sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SGI_40;
|
|
|
|
}
|
|
|
|
|
2009-01-21 07:13:48 -07:00
|
|
|
/*
|
|
|
|
* Since we use a u32 for rate bitmaps in
|
|
|
|
* ieee80211_get_response_rate, we cannot
|
|
|
|
* have more than 32 legacy rates.
|
|
|
|
*/
|
|
|
|
if (WARN_ON(sband->n_bitrates > 32))
|
2008-01-24 11:38:38 -07:00
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
for (i = 0; i < sband->n_channels; i++) {
|
|
|
|
sband->channels[i].orig_flags =
|
|
|
|
sband->channels[i].flags;
|
2012-10-17 05:56:19 -06:00
|
|
|
sband->channels[i].orig_mag = INT_MAX;
|
2008-01-24 11:38:38 -07:00
|
|
|
sband->channels[i].orig_mpwr =
|
|
|
|
sband->channels[i].max_power;
|
|
|
|
sband->channels[i].band = band;
|
|
|
|
}
|
|
|
|
|
|
|
|
have_band = true;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!have_band) {
|
|
|
|
WARN_ON(1);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
2012-06-27 01:23:48 -06:00
|
|
|
#ifdef CONFIG_PM
|
2013-06-03 09:25:34 -06:00
|
|
|
if (WARN_ON(rdev->wiphy.wowlan && rdev->wiphy.wowlan->n_patterns &&
|
|
|
|
(!rdev->wiphy.wowlan->pattern_min_len ||
|
|
|
|
rdev->wiphy.wowlan->pattern_min_len >
|
|
|
|
rdev->wiphy.wowlan->pattern_max_len)))
|
|
|
|
return -EINVAL;
|
2012-06-27 01:23:48 -06:00
|
|
|
#endif
|
2011-05-04 07:37:28 -06:00
|
|
|
|
2008-01-24 11:38:38 -07:00
|
|
|
/* check and set up bitrates */
|
|
|
|
ieee80211_set_bitrate_flags(wiphy);
|
|
|
|
|
2013-10-26 09:14:38 -06:00
|
|
|
rdev->wiphy.features |= NL80211_FEATURE_SCAN_FLUSH;
|
|
|
|
|
2013-09-26 12:03:45 -06:00
|
|
|
rtnl_lock();
|
2009-07-06 19:56:12 -06:00
|
|
|
res = device_add(&rdev->wiphy.dev);
|
2010-08-30 15:36:40 -06:00
|
|
|
if (res) {
|
2013-09-26 12:03:45 -06:00
|
|
|
rtnl_unlock();
|
2010-08-30 15:36:40 -06:00
|
|
|
return res;
|
|
|
|
}
|
2009-06-02 05:01:41 -06:00
|
|
|
|
2009-06-10 08:50:29 -06:00
|
|
|
/* set up regulatory info */
|
2012-07-12 12:49:18 -06:00
|
|
|
wiphy_regulatory_register(wiphy);
|
2009-06-10 08:50:29 -06:00
|
|
|
|
2010-01-17 07:49:02 -07:00
|
|
|
list_add_rcu(&rdev->list, &cfg80211_rdev_list);
|
2009-08-07 08:17:38 -06:00
|
|
|
cfg80211_rdev_list_generation++;
|
2007-04-23 13:20:05 -06:00
|
|
|
|
|
|
|
/* add to debugfs */
|
2009-07-06 19:56:12 -06:00
|
|
|
rdev->wiphy.debugfsdir =
|
|
|
|
debugfs_create_dir(wiphy_name(&rdev->wiphy),
|
2007-04-23 13:20:05 -06:00
|
|
|
ieee80211_debugfs_dir);
|
2009-07-06 19:56:12 -06:00
|
|
|
if (IS_ERR(rdev->wiphy.debugfsdir))
|
|
|
|
rdev->wiphy.debugfsdir = NULL;
|
2007-04-23 13:20:05 -06:00
|
|
|
|
2013-11-11 14:15:29 -07:00
|
|
|
if (wiphy->regulatory_flags & REGULATORY_CUSTOM_REG) {
|
2009-03-09 20:07:42 -06:00
|
|
|
struct regulatory_request request;
|
|
|
|
|
|
|
|
request.wiphy_idx = get_wiphy_idx(wiphy);
|
|
|
|
request.initiator = NL80211_REGDOM_SET_BY_DRIVER;
|
|
|
|
request.alpha2[0] = '9';
|
|
|
|
request.alpha2[1] = '9';
|
|
|
|
|
|
|
|
nl80211_send_reg_change_event(&request);
|
|
|
|
}
|
|
|
|
|
2009-07-06 19:56:12 -06:00
|
|
|
cfg80211_debugfs_rdev_add(rdev);
|
2009-05-01 22:37:21 -06:00
|
|
|
|
2011-08-12 06:00:59 -06:00
|
|
|
rdev->wiphy.registered = true;
|
|
|
|
rtnl_unlock();
|
2013-09-26 12:03:45 -06:00
|
|
|
|
|
|
|
res = rfkill_register(rdev->rfkill);
|
|
|
|
if (res) {
|
|
|
|
rfkill_destroy(rdev->rfkill);
|
|
|
|
rdev->rfkill = NULL;
|
|
|
|
wiphy_unregister(&rdev->wiphy);
|
|
|
|
return res;
|
|
|
|
}
|
|
|
|
|
2014-05-26 05:52:25 -06:00
|
|
|
nl80211_notify_wiphy(rdev, NL80211_CMD_NEW_WIPHY);
|
|
|
|
|
2009-06-10 08:50:29 -06:00
|
|
|
return 0;
|
2007-04-23 13:20:05 -06:00
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(wiphy_register);
|
|
|
|
|
2009-06-02 05:01:41 -06:00
|
|
|
void wiphy_rfkill_start_polling(struct wiphy *wiphy)
|
|
|
|
{
|
2014-04-20 22:53:03 -06:00
|
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
|
2009-06-02 05:01:41 -06:00
|
|
|
|
2009-07-06 19:56:12 -06:00
|
|
|
if (!rdev->ops->rfkill_poll)
|
2009-06-02 05:01:41 -06:00
|
|
|
return;
|
2009-07-06 19:56:12 -06:00
|
|
|
rdev->rfkill_ops.poll = cfg80211_rfkill_poll;
|
|
|
|
rfkill_resume_polling(rdev->rfkill);
|
2009-06-02 05:01:41 -06:00
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(wiphy_rfkill_start_polling);
|
|
|
|
|
|
|
|
void wiphy_rfkill_stop_polling(struct wiphy *wiphy)
|
|
|
|
{
|
2014-04-20 22:53:03 -06:00
|
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
|
2009-06-02 05:01:41 -06:00
|
|
|
|
2009-07-06 19:56:12 -06:00
|
|
|
rfkill_pause_polling(rdev->rfkill);
|
2009-06-02 05:01:41 -06:00
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(wiphy_rfkill_stop_polling);
|
|
|
|
|
2007-04-23 13:20:05 -06:00
|
|
|
void wiphy_unregister(struct wiphy *wiphy)
|
|
|
|
{
|
2014-04-20 22:53:03 -06:00
|
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
|
2007-04-23 13:20:05 -06:00
|
|
|
|
2009-08-18 11:51:57 -06:00
|
|
|
wait_event(rdev->dev_wait, ({
|
|
|
|
int __count;
|
2013-05-08 13:45:15 -06:00
|
|
|
rtnl_lock();
|
2009-08-18 11:51:57 -06:00
|
|
|
__count = rdev->opencount;
|
2013-05-08 13:45:15 -06:00
|
|
|
rtnl_unlock();
|
2012-05-08 03:38:53 -06:00
|
|
|
__count == 0; }));
|
2009-08-18 11:51:57 -06:00
|
|
|
|
2013-09-26 12:03:45 -06:00
|
|
|
if (rdev->rfkill)
|
|
|
|
rfkill_unregister(rdev->rfkill);
|
2013-06-04 11:21:08 -06:00
|
|
|
|
2013-05-08 13:45:15 -06:00
|
|
|
rtnl_lock();
|
2014-05-26 05:52:25 -06:00
|
|
|
nl80211_notify_wiphy(rdev, NL80211_CMD_DEL_WIPHY);
|
2013-05-08 13:45:15 -06:00
|
|
|
rdev->wiphy.registered = false;
|
|
|
|
|
2014-04-29 09:52:36 -06:00
|
|
|
WARN_ON(!list_empty(&rdev->wdev_list));
|
2009-08-18 11:51:57 -06:00
|
|
|
|
|
|
|
/*
|
|
|
|
* First remove the hardware from everywhere, this makes
|
|
|
|
* it impossible to find from userspace.
|
|
|
|
*/
|
2009-10-27 05:59:03 -06:00
|
|
|
debugfs_remove_recursive(rdev->wiphy.debugfsdir);
|
2010-01-17 07:49:02 -07:00
|
|
|
list_del_rcu(&rdev->list);
|
|
|
|
synchronize_rcu();
|
2007-04-26 21:51:12 -06:00
|
|
|
|
2012-07-12 12:49:19 -06:00
|
|
|
/*
|
|
|
|
* If this device got a regulatory hint tell core its
|
|
|
|
* free to listen now to a new shiny device regulatory hint
|
|
|
|
*/
|
|
|
|
wiphy_regulatory_deregister(wiphy);
|
2008-11-12 15:22:02 -07:00
|
|
|
|
2009-08-07 08:17:38 -06:00
|
|
|
cfg80211_rdev_list_generation++;
|
2009-07-06 19:56:12 -06:00
|
|
|
device_del(&rdev->wiphy.dev);
|
2007-04-23 13:20:05 -06:00
|
|
|
|
2013-05-08 13:45:15 -06:00
|
|
|
rtnl_unlock();
|
2009-07-13 05:24:44 -06:00
|
|
|
|
2009-08-12 14:21:21 -06:00
|
|
|
flush_work(&rdev->scan_done_wk);
|
2009-07-13 05:24:44 -06:00
|
|
|
cancel_work_sync(&rdev->conn_work);
|
|
|
|
flush_work(&rdev->event_work);
|
2013-02-08 10:16:19 -07:00
|
|
|
cancel_delayed_work_sync(&rdev->dfs_update_channels_wk);
|
2014-03-24 10:57:27 -06:00
|
|
|
flush_work(&rdev->destroy_work);
|
2012-04-04 07:05:25 -06:00
|
|
|
|
2013-05-15 01:30:07 -06:00
|
|
|
#ifdef CONFIG_PM
|
|
|
|
if (rdev->wiphy.wowlan_config && rdev->ops->set_wakeup)
|
2012-06-27 08:19:42 -06:00
|
|
|
rdev_set_wakeup(rdev, false);
|
2013-05-15 01:30:07 -06:00
|
|
|
#endif
|
2012-04-04 07:05:25 -06:00
|
|
|
cfg80211_rdev_free_wowlan(rdev);
|
2013-06-28 12:51:26 -06:00
|
|
|
cfg80211_rdev_free_coalesce(rdev);
|
2007-04-23 13:20:05 -06:00
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(wiphy_unregister);
|
|
|
|
|
2009-07-06 19:56:12 -06:00
|
|
|
void cfg80211_dev_free(struct cfg80211_registered_device *rdev)
|
2007-04-23 13:20:05 -06:00
|
|
|
{
|
2009-02-10 13:25:55 -07:00
|
|
|
struct cfg80211_internal_bss *scan, *tmp;
|
2012-10-26 15:49:25 -06:00
|
|
|
struct cfg80211_beacon_registration *reg, *treg;
|
2009-07-06 19:56:12 -06:00
|
|
|
rfkill_destroy(rdev->rfkill);
|
2012-10-26 15:49:25 -06:00
|
|
|
list_for_each_entry_safe(reg, treg, &rdev->beacon_registrations, list) {
|
|
|
|
list_del(®->list);
|
|
|
|
kfree(reg);
|
|
|
|
}
|
2009-07-06 19:56:12 -06:00
|
|
|
list_for_each_entry_safe(scan, tmp, &rdev->bss_list, list)
|
2013-01-31 17:49:58 -07:00
|
|
|
cfg80211_put_bss(&rdev->wiphy, &scan->pub);
|
2009-07-06 19:56:12 -06:00
|
|
|
kfree(rdev);
|
2007-04-23 13:20:05 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
void wiphy_free(struct wiphy *wiphy)
|
|
|
|
{
|
|
|
|
put_device(&wiphy->dev);
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(wiphy_free);
|
|
|
|
|
2009-06-02 05:01:41 -06:00
|
|
|
void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked)
|
|
|
|
{
|
2014-04-20 22:53:03 -06:00
|
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
|
2009-06-02 05:01:41 -06:00
|
|
|
|
2009-07-06 19:56:12 -06:00
|
|
|
if (rfkill_set_hw_state(rdev->rfkill, blocked))
|
|
|
|
schedule_work(&rdev->rfkill_sync);
|
2009-06-02 05:01:41 -06:00
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(wiphy_rfkill_set_hw_state);
|
|
|
|
|
2012-06-15 16:19:54 -06:00
|
|
|
void cfg80211_unregister_wdev(struct wireless_dev *wdev)
|
|
|
|
{
|
2014-04-20 22:53:03 -06:00
|
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
|
2012-06-15 16:19:54 -06:00
|
|
|
|
|
|
|
ASSERT_RTNL();
|
|
|
|
|
|
|
|
if (WARN_ON(wdev->netdev))
|
|
|
|
return;
|
|
|
|
|
|
|
|
list_del_rcu(&wdev->list);
|
|
|
|
rdev->devlist_generation++;
|
|
|
|
|
|
|
|
switch (wdev->iftype) {
|
|
|
|
case NL80211_IFTYPE_P2P_DEVICE:
|
2013-03-19 08:04:07 -06:00
|
|
|
cfg80211_stop_p2p_device(rdev, wdev);
|
2012-06-15 16:19:54 -06:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
WARN_ON_ONCE(1);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(cfg80211_unregister_wdev);
|
|
|
|
|
2014-01-20 16:00:56 -07:00
|
|
|
static const struct device_type wiphy_type = {
|
2009-10-01 23:15:28 -06:00
|
|
|
.name = "wlan",
|
|
|
|
};
|
|
|
|
|
2012-06-29 04:47:01 -06:00
|
|
|
void cfg80211_update_iface_num(struct cfg80211_registered_device *rdev,
|
|
|
|
enum nl80211_iftype iftype, int num)
|
|
|
|
{
|
2012-07-04 05:28:18 -06:00
|
|
|
ASSERT_RTNL();
|
2012-06-29 04:47:01 -06:00
|
|
|
|
|
|
|
rdev->num_running_ifaces += num;
|
|
|
|
if (iftype == NL80211_IFTYPE_MONITOR)
|
|
|
|
rdev->num_running_monitor_ifaces += num;
|
|
|
|
}
|
|
|
|
|
2014-04-09 07:11:01 -06:00
|
|
|
void __cfg80211_leave(struct cfg80211_registered_device *rdev,
|
|
|
|
struct wireless_dev *wdev)
|
2013-02-28 02:55:25 -07:00
|
|
|
{
|
|
|
|
struct net_device *dev = wdev->netdev;
|
|
|
|
|
2013-12-05 02:21:26 -07:00
|
|
|
ASSERT_RTNL();
|
2014-04-09 07:11:01 -06:00
|
|
|
ASSERT_WDEV_LOCK(wdev);
|
2013-12-05 02:21:26 -07:00
|
|
|
|
2013-02-28 02:55:25 -07:00
|
|
|
switch (wdev->iftype) {
|
|
|
|
case NL80211_IFTYPE_ADHOC:
|
2014-04-09 07:11:01 -06:00
|
|
|
__cfg80211_leave_ibss(rdev, dev, true);
|
2013-02-28 02:55:25 -07:00
|
|
|
break;
|
|
|
|
case NL80211_IFTYPE_P2P_CLIENT:
|
|
|
|
case NL80211_IFTYPE_STATION:
|
2013-12-05 02:21:26 -07:00
|
|
|
if (rdev->sched_scan_req && dev == rdev->sched_scan_req->dev)
|
|
|
|
__cfg80211_stop_sched_scan(rdev, false);
|
2013-02-28 02:55:25 -07:00
|
|
|
|
|
|
|
#ifdef CONFIG_CFG80211_WEXT
|
|
|
|
kfree(wdev->wext.ie);
|
|
|
|
wdev->wext.ie = NULL;
|
|
|
|
wdev->wext.ie_len = 0;
|
|
|
|
wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
|
|
|
|
#endif
|
2013-05-15 09:44:01 -06:00
|
|
|
cfg80211_disconnect(rdev, dev,
|
|
|
|
WLAN_REASON_DEAUTH_LEAVING, true);
|
2013-02-28 02:55:25 -07:00
|
|
|
break;
|
|
|
|
case NL80211_IFTYPE_MESH_POINT:
|
2014-04-09 07:11:01 -06:00
|
|
|
__cfg80211_leave_mesh(rdev, dev);
|
2013-02-28 02:55:25 -07:00
|
|
|
break;
|
|
|
|
case NL80211_IFTYPE_AP:
|
2013-07-30 02:11:25 -06:00
|
|
|
case NL80211_IFTYPE_P2P_GO:
|
2014-04-09 07:11:01 -06:00
|
|
|
__cfg80211_stop_ap(rdev, dev, true);
|
2013-02-28 02:55:25 -07:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2014-04-09 07:11:01 -06:00
|
|
|
void cfg80211_leave(struct cfg80211_registered_device *rdev,
|
|
|
|
struct wireless_dev *wdev)
|
|
|
|
{
|
|
|
|
wdev_lock(wdev);
|
|
|
|
__cfg80211_leave(rdev, wdev);
|
|
|
|
wdev_unlock(wdev);
|
|
|
|
}
|
|
|
|
|
|
|
|
void cfg80211_stop_iface(struct wiphy *wiphy, struct wireless_dev *wdev,
|
|
|
|
gfp_t gfp)
|
|
|
|
{
|
|
|
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
|
|
|
|
struct cfg80211_event *ev;
|
|
|
|
unsigned long flags;
|
|
|
|
|
|
|
|
trace_cfg80211_stop_iface(wiphy, wdev);
|
|
|
|
|
|
|
|
ev = kzalloc(sizeof(*ev), gfp);
|
|
|
|
if (!ev)
|
|
|
|
return;
|
|
|
|
|
|
|
|
ev->type = EVENT_STOPPED;
|
|
|
|
|
|
|
|
spin_lock_irqsave(&wdev->event_lock, flags);
|
|
|
|
list_add_tail(&ev->list, &wdev->event_list);
|
|
|
|
spin_unlock_irqrestore(&wdev->event_lock, flags);
|
|
|
|
queue_work(cfg80211_wq, &rdev->event_work);
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(cfg80211_stop_iface);
|
|
|
|
|
2012-05-08 03:38:53 -06:00
|
|
|
static int cfg80211_netdev_notifier_call(struct notifier_block *nb,
|
2013-05-27 19:30:21 -06:00
|
|
|
unsigned long state, void *ptr)
|
2007-04-23 13:20:05 -06:00
|
|
|
{
|
2013-05-27 19:30:21 -06:00
|
|
|
struct net_device *dev = netdev_notifier_info_to_dev(ptr);
|
2009-07-01 13:26:45 -06:00
|
|
|
struct wireless_dev *wdev = dev->ieee80211_ptr;
|
2007-04-23 13:20:05 -06:00
|
|
|
struct cfg80211_registered_device *rdev;
|
|
|
|
|
2009-07-01 13:26:45 -06:00
|
|
|
if (!wdev)
|
2009-06-02 05:01:41 -06:00
|
|
|
return NOTIFY_DONE;
|
2007-04-23 13:20:05 -06:00
|
|
|
|
2014-04-20 22:53:03 -06:00
|
|
|
rdev = wiphy_to_rdev(wdev->wiphy);
|
2007-04-23 13:20:05 -06:00
|
|
|
|
2009-07-01 13:26:45 -06:00
|
|
|
WARN_ON(wdev->iftype == NL80211_IFTYPE_UNSPECIFIED);
|
2008-09-16 06:55:09 -06:00
|
|
|
|
2007-04-23 13:20:05 -06:00
|
|
|
switch (state) {
|
2009-10-01 23:15:28 -06:00
|
|
|
case NETDEV_POST_INIT:
|
|
|
|
SET_NETDEV_DEVTYPE(dev, &wiphy_type);
|
|
|
|
break;
|
2007-04-23 13:20:05 -06:00
|
|
|
case NETDEV_REGISTER:
|
2009-08-17 04:25:37 -06:00
|
|
|
/*
|
|
|
|
* NB: cannot take rdev->mtx here because this may be
|
|
|
|
* called within code protected by it when interfaces
|
|
|
|
* are added with nl80211.
|
|
|
|
*/
|
2009-07-06 19:56:11 -06:00
|
|
|
mutex_init(&wdev->mtx);
|
|
|
|
INIT_LIST_HEAD(&wdev->event_list);
|
|
|
|
spin_lock_init(&wdev->event_lock);
|
2010-08-12 07:38:38 -06:00
|
|
|
INIT_LIST_HEAD(&wdev->mgmt_registrations);
|
|
|
|
spin_lock_init(&wdev->mgmt_registrations_lock);
|
2010-02-15 03:53:10 -07:00
|
|
|
|
2012-06-15 06:33:17 -06:00
|
|
|
wdev->identifier = ++rdev->wdev_id;
|
|
|
|
list_add_rcu(&wdev->list, &rdev->wdev_list);
|
2009-08-07 08:17:38 -06:00
|
|
|
rdev->devlist_generation++;
|
2009-07-13 16:33:35 -06:00
|
|
|
/* can only change netns with wiphy */
|
|
|
|
dev->features |= NETIF_F_NETNS_LOCAL;
|
|
|
|
|
2007-04-23 13:20:05 -06:00
|
|
|
if (sysfs_create_link(&dev->dev.kobj, &rdev->wiphy.dev.kobj,
|
|
|
|
"phy80211")) {
|
2010-11-16 20:56:49 -07:00
|
|
|
pr_err("failed to add phy80211 symlink to netdev!\n");
|
2007-04-23 13:20:05 -06:00
|
|
|
}
|
2009-07-01 13:26:45 -06:00
|
|
|
wdev->netdev = dev;
|
2009-09-29 15:27:28 -06:00
|
|
|
#ifdef CONFIG_CFG80211_WEXT
|
2009-07-01 13:26:45 -06:00
|
|
|
wdev->wext.default_key = -1;
|
|
|
|
wdev->wext.default_mgmt_key = -1;
|
2009-07-01 13:26:56 -06:00
|
|
|
wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
|
nl80211: add power save commands
The most needed command from nl80211, which Wireless Extensions had,
is support for power save mode. Add a simple command to make it possible
to enable and disable power save via nl80211.
I was also planning about extending the interface, for example adding the
timeout value, but after thinking more about this I decided not to do it.
Basically there were three reasons:
Firstly, the parameters for power save are very much hardware dependent.
Trying to find a unified interface which would work with all hardware, and
still make sense to users, will be very difficult.
Secondly, IEEE 802.11 power save implementation in Linux is still in state
of flux. We have a long way to still to go and there is no way to predict
what kind of implementation we will have after few years. And because we
need to support nl80211 interface a long time, practically forever, adding
now parameters to nl80211 might create maintenance problems later on.
Third issue are the users. Power save parameters are mostly used for
debugging, so debugfs is better, more flexible, interface for this.
For example, wpa_supplicant currently doesn't configure anything related
to power save mode. It's better to strive that kernel can automatically
optimise the power save parameters, like with help of pm qos network
and other traffic parameters.
Later on, when we have better understanding of power save, we can extend
this command with more features, if there's a need for that.
Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-17 08:58:10 -07:00
|
|
|
#endif
|
|
|
|
|
2009-11-18 16:56:28 -07:00
|
|
|
if (wdev->wiphy->flags & WIPHY_FLAG_PS_ON_BY_DEFAULT)
|
nl80211: add power save commands
The most needed command from nl80211, which Wireless Extensions had,
is support for power save mode. Add a simple command to make it possible
to enable and disable power save via nl80211.
I was also planning about extending the interface, for example adding the
timeout value, but after thinking more about this I decided not to do it.
Basically there were three reasons:
Firstly, the parameters for power save are very much hardware dependent.
Trying to find a unified interface which would work with all hardware, and
still make sense to users, will be very difficult.
Secondly, IEEE 802.11 power save implementation in Linux is still in state
of flux. We have a long way to still to go and there is no way to predict
what kind of implementation we will have after few years. And because we
need to support nl80211 interface a long time, practically forever, adding
now parameters to nl80211 might create maintenance problems later on.
Third issue are the users. Power save parameters are mostly used for
debugging, so debugfs is better, more flexible, interface for this.
For example, wpa_supplicant currently doesn't configure anything related
to power save mode. It's better to strive that kernel can automatically
optimise the power save parameters, like with help of pm qos network
and other traffic parameters.
Later on, when we have better understanding of power save, we can extend
this command with more features, if there's a need for that.
Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-17 08:58:10 -07:00
|
|
|
wdev->ps = true;
|
2009-11-18 16:56:28 -07:00
|
|
|
else
|
nl80211: add power save commands
The most needed command from nl80211, which Wireless Extensions had,
is support for power save mode. Add a simple command to make it possible
to enable and disable power save via nl80211.
I was also planning about extending the interface, for example adding the
timeout value, but after thinking more about this I decided not to do it.
Basically there were three reasons:
Firstly, the parameters for power save are very much hardware dependent.
Trying to find a unified interface which would work with all hardware, and
still make sense to users, will be very difficult.
Secondly, IEEE 802.11 power save implementation in Linux is still in state
of flux. We have a long way to still to go and there is no way to predict
what kind of implementation we will have after few years. And because we
need to support nl80211 interface a long time, practically forever, adding
now parameters to nl80211 might create maintenance problems later on.
Third issue are the users. Power save parameters are mostly used for
debugging, so debugfs is better, more flexible, interface for this.
For example, wpa_supplicant currently doesn't configure anything related
to power save mode. It's better to strive that kernel can automatically
optimise the power save parameters, like with help of pm qos network
and other traffic parameters.
Later on, when we have better understanding of power save, we can extend
this command with more features, if there's a need for that.
Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-17 08:58:10 -07:00
|
|
|
wdev->ps = false;
|
2010-04-27 03:47:41 -06:00
|
|
|
/* allow mac80211 to determine the timeout */
|
|
|
|
wdev->ps_timeout = -1;
|
nl80211: add power save commands
The most needed command from nl80211, which Wireless Extensions had,
is support for power save mode. Add a simple command to make it possible
to enable and disable power save via nl80211.
I was also planning about extending the interface, for example adding the
timeout value, but after thinking more about this I decided not to do it.
Basically there were three reasons:
Firstly, the parameters for power save are very much hardware dependent.
Trying to find a unified interface which would work with all hardware, and
still make sense to users, will be very difficult.
Secondly, IEEE 802.11 power save implementation in Linux is still in state
of flux. We have a long way to still to go and there is no way to predict
what kind of implementation we will have after few years. And because we
need to support nl80211 interface a long time, practically forever, adding
now parameters to nl80211 might create maintenance problems later on.
Third issue are the users. Power save parameters are mostly used for
debugging, so debugfs is better, more flexible, interface for this.
For example, wpa_supplicant currently doesn't configure anything related
to power save mode. It's better to strive that kernel can automatically
optimise the power save parameters, like with help of pm qos network
and other traffic parameters.
Later on, when we have better understanding of power save, we can extend
this command with more features, if there's a need for that.
Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-17 08:58:10 -07:00
|
|
|
|
cfg80211: disallow bridging managed/adhoc interfaces
A number of people have tried to add a wireless interface
(in managed mode) to a bridge and then complained that it
doesn't work. It cannot work, however, because in 802.11
networks all packets need to be acknowledged and as such
need to be sent to the right address. Promiscuous doesn't
help here. The wireless address format used for these
links has only space for three addresses, the
* transmitter, which must be equal to the sender (origin)
* receiver (on the wireless medium), which is the AP in
the case of managed mode
* the recipient (destination), which is on the APs local
network segment
In an IBSS, it is similar, but the receiver and recipient
must match and the third address is used as the BSSID.
To avoid such mistakes in the future, disallow adding a
wireless interface to a bridge.
Felix has recently added a four-address mode to the AP
and client side that can be used (after negotiating that
it is possible, which must happen out-of-band by setting
up both sides) for bridging, so allow that case.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 16:56:30 -07:00
|
|
|
if ((wdev->iftype == NL80211_IFTYPE_STATION ||
|
2010-09-16 06:58:22 -06:00
|
|
|
wdev->iftype == NL80211_IFTYPE_P2P_CLIENT ||
|
cfg80211: disallow bridging managed/adhoc interfaces
A number of people have tried to add a wireless interface
(in managed mode) to a bridge and then complained that it
doesn't work. It cannot work, however, because in 802.11
networks all packets need to be acknowledged and as such
need to be sent to the right address. Promiscuous doesn't
help here. The wireless address format used for these
links has only space for three addresses, the
* transmitter, which must be equal to the sender (origin)
* receiver (on the wireless medium), which is the AP in
the case of managed mode
* the recipient (destination), which is on the APs local
network segment
In an IBSS, it is similar, but the receiver and recipient
must match and the third address is used as the BSSID.
To avoid such mistakes in the future, disallow adding a
wireless interface to a bridge.
Felix has recently added a four-address mode to the AP
and client side that can be used (after negotiating that
it is possible, which must happen out-of-band by setting
up both sides) for bridging, so allow that case.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 16:56:30 -07:00
|
|
|
wdev->iftype == NL80211_IFTYPE_ADHOC) && !wdev->use_4addr)
|
|
|
|
dev->priv_flags |= IFF_DONT_BRIDGE;
|
2007-04-23 13:20:05 -06:00
|
|
|
break;
|
2009-04-19 13:24:32 -06:00
|
|
|
case NETDEV_GOING_DOWN:
|
2013-02-28 02:55:25 -07:00
|
|
|
cfg80211_leave(rdev, wdev);
|
2009-08-20 13:36:16 -06:00
|
|
|
break;
|
|
|
|
case NETDEV_DOWN:
|
2012-06-29 04:47:01 -06:00
|
|
|
cfg80211_update_iface_num(rdev, wdev->iftype, -1);
|
2014-01-22 02:14:18 -07:00
|
|
|
if (rdev->scan_req && rdev->scan_req->wdev == wdev) {
|
|
|
|
if (WARN_ON(!rdev->scan_req->notified))
|
|
|
|
rdev->scan_req->aborted = true;
|
cfg80211: send scan results from work queue
Due to the previous commit, when a scan finishes, it is in theory
possible to hit the following sequence:
1. interface starts being removed
2. scan is cancelled by driver and cfg80211 is notified
3. scan done work is scheduled
4. interface is removed completely, rdev->scan_req is freed,
event sent to userspace but scan done work remains pending
5. new scan is requested on another virtual interface
6. scan done work runs, freeing the still-running scan
To fix this situation, hang on to the scan done message and block
new scans while that is the case, and only send the message from
the work function, regardless of whether the scan_req is already
freed from interface removal. This makes step 5 above impossible
and changes step 6 to be
5. scan done work runs, sending the scan done message
As this can't work for wext, so we send the message immediately,
but this shouldn't be an issue since we still return -EBUSY.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-01-22 02:14:19 -07:00
|
|
|
___cfg80211_scan_done(rdev, false);
|
2014-01-22 02:14:18 -07:00
|
|
|
}
|
2013-05-08 13:45:15 -06:00
|
|
|
|
|
|
|
if (WARN_ON(rdev->sched_scan_req &&
|
|
|
|
rdev->sched_scan_req->dev == wdev->netdev)) {
|
|
|
|
__cfg80211_stop_sched_scan(rdev, false);
|
|
|
|
}
|
|
|
|
|
|
|
|
rdev->opencount--;
|
|
|
|
wake_up(&rdev->dev_wait);
|
2009-04-19 13:24:32 -06:00
|
|
|
break;
|
|
|
|
case NETDEV_UP:
|
2012-07-12 14:19:48 -06:00
|
|
|
cfg80211_update_iface_num(rdev, wdev->iftype, 1);
|
2009-07-06 19:56:11 -06:00
|
|
|
wdev_lock(wdev);
|
2009-07-01 13:26:56 -06:00
|
|
|
switch (wdev->iftype) {
|
2010-12-03 01:20:44 -07:00
|
|
|
#ifdef CONFIG_CFG80211_WEXT
|
2009-07-01 13:26:56 -06:00
|
|
|
case NL80211_IFTYPE_ADHOC:
|
cfg80211: rework key operation
This reworks the key operation in cfg80211, and now only
allows, from userspace, configuring keys (via nl80211)
after the connection has been established (in managed
mode), the IBSS been joined (in IBSS mode), at any time
(in AP[_VLAN] modes) or never for all the other modes.
In order to do shared key authentication correctly, it
is now possible to give a WEP key to the AUTH command.
To configure static WEP keys, these are given to the
CONNECT or IBSS_JOIN command directly, for a userspace
SME it is assumed it will configure it properly after
the connection has been established.
Since mac80211 used to check the default key in IBSS
mode to see whether or not the network is protected,
it needs an update in that area, as well as an update
to make use of the WEP key passed to auth() for shared
key authentication.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-08 06:22:54 -06:00
|
|
|
cfg80211_ibss_wext_join(rdev, wdev);
|
2009-04-19 13:24:32 -06:00
|
|
|
break;
|
2009-07-01 13:26:56 -06:00
|
|
|
case NL80211_IFTYPE_STATION:
|
cfg80211: rework key operation
This reworks the key operation in cfg80211, and now only
allows, from userspace, configuring keys (via nl80211)
after the connection has been established (in managed
mode), the IBSS been joined (in IBSS mode), at any time
(in AP[_VLAN] modes) or never for all the other modes.
In order to do shared key authentication correctly, it
is now possible to give a WEP key to the AUTH command.
To configure static WEP keys, these are given to the
CONNECT or IBSS_JOIN command directly, for a userspace
SME it is assumed it will configure it properly after
the connection has been established.
Since mac80211 used to check the default key in IBSS
mode to see whether or not the network is protected,
it needs an update in that area, as well as an update
to make use of the WEP key passed to auth() for shared
key authentication.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-08 06:22:54 -06:00
|
|
|
cfg80211_mgd_wext_connect(rdev, wdev);
|
2009-07-01 13:26:56 -06:00
|
|
|
break;
|
2010-12-03 01:20:44 -07:00
|
|
|
#endif
|
2010-12-16 18:37:49 -07:00
|
|
|
#ifdef CONFIG_MAC80211_MESH
|
2010-12-03 01:20:44 -07:00
|
|
|
case NL80211_IFTYPE_MESH_POINT:
|
2010-12-16 18:37:49 -07:00
|
|
|
{
|
|
|
|
/* backward compat code... */
|
|
|
|
struct mesh_setup setup;
|
|
|
|
memcpy(&setup, &default_mesh_setup,
|
|
|
|
sizeof(setup));
|
|
|
|
/* back compat only needed for mesh_id */
|
|
|
|
setup.mesh_id = wdev->ssid;
|
|
|
|
setup.mesh_id_len = wdev->mesh_id_up_len;
|
|
|
|
if (wdev->mesh_id_up_len)
|
|
|
|
__cfg80211_join_mesh(rdev, dev,
|
|
|
|
&setup,
|
|
|
|
&default_mesh_config);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
#endif
|
2009-07-01 13:26:56 -06:00
|
|
|
default:
|
2009-04-19 13:24:32 -06:00
|
|
|
break;
|
2009-07-01 13:26:56 -06:00
|
|
|
}
|
2009-07-06 19:56:11 -06:00
|
|
|
wdev_unlock(wdev);
|
2009-08-18 11:51:57 -06:00
|
|
|
rdev->opencount++;
|
2011-01-31 06:52:58 -07:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Configure power management to the driver here so that its
|
|
|
|
* correctly set also after interface type changes etc.
|
|
|
|
*/
|
2011-07-19 03:57:13 -06:00
|
|
|
if ((wdev->iftype == NL80211_IFTYPE_STATION ||
|
|
|
|
wdev->iftype == NL80211_IFTYPE_P2P_CLIENT) &&
|
2011-01-31 06:52:58 -07:00
|
|
|
rdev->ops->set_power_mgmt)
|
2012-06-27 08:19:42 -06:00
|
|
|
if (rdev_set_power_mgmt(rdev, dev, wdev->ps,
|
|
|
|
wdev->ps_timeout)) {
|
2011-01-31 06:52:58 -07:00
|
|
|
/* assume this means it's off */
|
|
|
|
wdev->ps = false;
|
|
|
|
}
|
2009-07-01 13:26:45 -06:00
|
|
|
break;
|
2007-04-23 13:20:05 -06:00
|
|
|
case NETDEV_UNREGISTER:
|
2009-07-30 06:04:01 -06:00
|
|
|
/*
|
|
|
|
* It is possible to get NETDEV_UNREGISTER
|
|
|
|
* multiple times. To detect that, check
|
|
|
|
* that the interface is still on the list
|
|
|
|
* of registered interfaces, and only then
|
|
|
|
* remove and clean it up.
|
|
|
|
*/
|
2009-07-01 13:26:45 -06:00
|
|
|
if (!list_empty(&wdev->list)) {
|
2007-04-23 13:20:05 -06:00
|
|
|
sysfs_remove_link(&dev->dev.kobj, "phy80211");
|
2010-01-17 07:49:02 -07:00
|
|
|
list_del_rcu(&wdev->list);
|
2009-08-07 08:17:38 -06:00
|
|
|
rdev->devlist_generation++;
|
2010-08-12 07:38:38 -06:00
|
|
|
cfg80211_mlme_purge_registrations(wdev);
|
2009-09-29 15:27:28 -06:00
|
|
|
#ifdef CONFIG_CFG80211_WEXT
|
2009-07-30 06:04:01 -06:00
|
|
|
kfree(wdev->wext.keys);
|
cfg80211: rework key operation
This reworks the key operation in cfg80211, and now only
allows, from userspace, configuring keys (via nl80211)
after the connection has been established (in managed
mode), the IBSS been joined (in IBSS mode), at any time
(in AP[_VLAN] modes) or never for all the other modes.
In order to do shared key authentication correctly, it
is now possible to give a WEP key to the AUTH command.
To configure static WEP keys, these are given to the
CONNECT or IBSS_JOIN command directly, for a userspace
SME it is assumed it will configure it properly after
the connection has been established.
Since mac80211 used to check the default key in IBSS
mode to see whether or not the network is protected,
it needs an update in that area, as well as an update
to make use of the WEP key passed to auth() for shared
key authentication.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-08 06:22:54 -06:00
|
|
|
#endif
|
2009-07-30 06:04:01 -06:00
|
|
|
}
|
2010-01-17 07:49:02 -07:00
|
|
|
/*
|
|
|
|
* synchronise (so that we won't find this netdev
|
|
|
|
* from other code any more) and then clear the list
|
|
|
|
* head so that the above code can safely check for
|
|
|
|
* !list_empty() to avoid double-cleanup.
|
|
|
|
*/
|
|
|
|
synchronize_rcu();
|
|
|
|
INIT_LIST_HEAD(&wdev->list);
|
2012-08-02 11:41:48 -06:00
|
|
|
/*
|
|
|
|
* Ensure that all events have been processed and
|
|
|
|
* freed.
|
|
|
|
*/
|
|
|
|
cfg80211_process_wdev_events(wdev);
|
2013-06-19 15:06:26 -06:00
|
|
|
|
|
|
|
if (WARN_ON(wdev->current_bss)) {
|
|
|
|
cfg80211_unhold_bss(wdev->current_bss);
|
|
|
|
cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub);
|
|
|
|
wdev->current_bss = NULL;
|
|
|
|
}
|
2007-04-23 13:20:05 -06:00
|
|
|
break;
|
2009-06-02 05:01:41 -06:00
|
|
|
case NETDEV_PRE_UP:
|
2009-07-06 19:56:13 -06:00
|
|
|
if (!(wdev->wiphy->interface_modes & BIT(wdev->iftype)))
|
|
|
|
return notifier_from_errno(-EOPNOTSUPP);
|
2014-02-27 02:07:21 -07:00
|
|
|
if (rfkill_blocked(rdev->rfkill))
|
|
|
|
return notifier_from_errno(-ERFKILL);
|
2009-06-02 05:01:41 -06:00
|
|
|
break;
|
2014-04-20 22:53:04 -06:00
|
|
|
default:
|
|
|
|
return NOTIFY_DONE;
|
2007-04-23 13:20:05 -06:00
|
|
|
}
|
|
|
|
|
2014-04-20 22:53:04 -06:00
|
|
|
return NOTIFY_OK;
|
2007-04-23 13:20:05 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
static struct notifier_block cfg80211_netdev_notifier = {
|
|
|
|
.notifier_call = cfg80211_netdev_notifier_call,
|
|
|
|
};
|
|
|
|
|
2009-07-13 16:33:35 -06:00
|
|
|
static void __net_exit cfg80211_pernet_exit(struct net *net)
|
|
|
|
{
|
|
|
|
struct cfg80211_registered_device *rdev;
|
|
|
|
|
|
|
|
rtnl_lock();
|
|
|
|
list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
|
|
|
|
if (net_eq(wiphy_net(&rdev->wiphy), net))
|
|
|
|
WARN_ON(cfg80211_switch_netns(rdev, &init_net));
|
|
|
|
}
|
|
|
|
rtnl_unlock();
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct pernet_operations cfg80211_pernet_ops = {
|
|
|
|
.exit = cfg80211_pernet_exit,
|
|
|
|
};
|
|
|
|
|
|
|
|
static int __init cfg80211_init(void)
|
2007-04-23 13:20:05 -06:00
|
|
|
{
|
2008-09-10 00:19:48 -06:00
|
|
|
int err;
|
|
|
|
|
2009-07-13 16:33:35 -06:00
|
|
|
err = register_pernet_device(&cfg80211_pernet_ops);
|
|
|
|
if (err)
|
|
|
|
goto out_fail_pernet;
|
|
|
|
|
2008-09-10 00:19:48 -06:00
|
|
|
err = wiphy_sysfs_init();
|
2007-04-23 13:20:05 -06:00
|
|
|
if (err)
|
|
|
|
goto out_fail_sysfs;
|
|
|
|
|
|
|
|
err = register_netdevice_notifier(&cfg80211_netdev_notifier);
|
|
|
|
if (err)
|
|
|
|
goto out_fail_notifier;
|
|
|
|
|
2007-09-20 11:09:35 -06:00
|
|
|
err = nl80211_init();
|
|
|
|
if (err)
|
|
|
|
goto out_fail_nl80211;
|
|
|
|
|
2007-04-23 13:20:05 -06:00
|
|
|
ieee80211_debugfs_dir = debugfs_create_dir("ieee80211", NULL);
|
|
|
|
|
2008-09-10 00:19:48 -06:00
|
|
|
err = regulatory_init();
|
|
|
|
if (err)
|
|
|
|
goto out_fail_reg;
|
|
|
|
|
2009-11-25 07:13:00 -07:00
|
|
|
cfg80211_wq = create_singlethread_workqueue("cfg80211");
|
2013-03-20 06:22:54 -06:00
|
|
|
if (!cfg80211_wq) {
|
|
|
|
err = -ENOMEM;
|
2009-11-25 07:13:00 -07:00
|
|
|
goto out_fail_wq;
|
2013-03-20 06:22:54 -06:00
|
|
|
}
|
2009-11-25 07:13:00 -07:00
|
|
|
|
2007-04-23 13:20:05 -06:00
|
|
|
return 0;
|
|
|
|
|
2009-11-25 07:13:00 -07:00
|
|
|
out_fail_wq:
|
|
|
|
regulatory_exit();
|
2008-09-10 00:19:48 -06:00
|
|
|
out_fail_reg:
|
|
|
|
debugfs_remove(ieee80211_debugfs_dir);
|
2007-09-20 11:09:35 -06:00
|
|
|
out_fail_nl80211:
|
|
|
|
unregister_netdevice_notifier(&cfg80211_netdev_notifier);
|
2007-04-23 13:20:05 -06:00
|
|
|
out_fail_notifier:
|
|
|
|
wiphy_sysfs_exit();
|
|
|
|
out_fail_sysfs:
|
2009-07-13 16:33:35 -06:00
|
|
|
unregister_pernet_device(&cfg80211_pernet_ops);
|
|
|
|
out_fail_pernet:
|
2007-04-23 13:20:05 -06:00
|
|
|
return err;
|
|
|
|
}
|
2007-09-10 05:44:45 -06:00
|
|
|
subsys_initcall(cfg80211_init);
|
2007-04-23 13:20:05 -06:00
|
|
|
|
2010-06-18 01:38:54 -06:00
|
|
|
static void __exit cfg80211_exit(void)
|
2007-04-23 13:20:05 -06:00
|
|
|
{
|
|
|
|
debugfs_remove(ieee80211_debugfs_dir);
|
2007-09-20 11:09:35 -06:00
|
|
|
nl80211_exit();
|
2007-04-23 13:20:05 -06:00
|
|
|
unregister_netdevice_notifier(&cfg80211_netdev_notifier);
|
|
|
|
wiphy_sysfs_exit();
|
2008-09-10 00:19:48 -06:00
|
|
|
regulatory_exit();
|
2009-07-13 16:33:35 -06:00
|
|
|
unregister_pernet_device(&cfg80211_pernet_ops);
|
2009-11-25 07:13:00 -07:00
|
|
|
destroy_workqueue(cfg80211_wq);
|
2007-04-23 13:20:05 -06:00
|
|
|
}
|
|
|
|
module_exit(cfg80211_exit);
|