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authorJohn W. Linville <linville@tuxdriver.com>2013-06-11 14:48:32 -0400
committerJohn W. Linville <linville@tuxdriver.com>2013-06-11 14:48:32 -0400
commit3899ba90a4ab2f3cab8e0f91a76c14ff131c8293 (patch)
treeae82b469f8a7ceb42547d11dd1fe5c73abc8635b /net/wireless
parentnet_sched: add 64bit rate estimators (diff)
parentcw1200: Fix an assorted pile of checkpatch warnings. (diff)
downloadlinux-dev-3899ba90a4ab2f3cab8e0f91a76c14ff131c8293.tar.xz
linux-dev-3899ba90a4ab2f3cab8e0f91a76c14ff131c8293.zip
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
Conflicts: drivers/net/wireless/ath/ath9k/debug.c net/mac80211/iface.c
Diffstat (limited to 'net/wireless')
-rw-r--r--net/wireless/core.c224
-rw-r--r--net/wireless/core.h93
-rw-r--r--net/wireless/debugfs.c4
-rw-r--r--net/wireless/ibss.c10
-rw-r--r--net/wireless/mesh.c3
-rw-r--r--net/wireless/mlme.c216
-rw-r--r--net/wireless/nl80211.c350
-rw-r--r--net/wireless/reg.c136
-rw-r--r--net/wireless/scan.c47
-rw-r--r--net/wireless/sme.c107
-rw-r--r--net/wireless/sysfs.c8
-rw-r--r--net/wireless/trace.h4
-rw-r--r--net/wireless/util.c39
-rw-r--r--net/wireless/wext-compat.c22
-rw-r--r--net/wireless/wext-sme.c41
15 files changed, 443 insertions, 861 deletions
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 01e41191f1bf..e4df77490229 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -34,13 +34,12 @@
MODULE_AUTHOR("Johannes Berg");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("wireless configuration support");
+MODULE_ALIAS_GENL_FAMILY(NL80211_GENL_NAME);
-/* RCU-protected (and cfg80211_mutex for writers) */
+/* RCU-protected (and RTNL for writers) */
LIST_HEAD(cfg80211_rdev_list);
int cfg80211_rdev_list_generation;
-DEFINE_MUTEX(cfg80211_mutex);
-
/* for debugfs */
static struct dentry *ieee80211_debugfs_dir;
@@ -52,12 +51,11 @@ module_param(cfg80211_disable_40mhz_24ghz, bool, 0644);
MODULE_PARM_DESC(cfg80211_disable_40mhz_24ghz,
"Disable 40MHz support in the 2.4GHz band");
-/* requires cfg80211_mutex to be held! */
struct cfg80211_registered_device *cfg80211_rdev_by_wiphy_idx(int wiphy_idx)
{
struct cfg80211_registered_device *result = NULL, *rdev;
- assert_cfg80211_lock();
+ ASSERT_RTNL();
list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
if (rdev->wiphy_idx == wiphy_idx) {
@@ -76,12 +74,11 @@ int get_wiphy_idx(struct wiphy *wiphy)
return rdev->wiphy_idx;
}
-/* requires cfg80211_rdev_mutex to be held! */
struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx)
{
struct cfg80211_registered_device *rdev;
- assert_cfg80211_lock();
+ ASSERT_RTNL();
rdev = cfg80211_rdev_by_wiphy_idx(wiphy_idx);
if (!rdev)
@@ -89,35 +86,13 @@ struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx)
return &rdev->wiphy;
}
-struct cfg80211_registered_device *
-cfg80211_get_dev_from_ifindex(struct net *net, int ifindex)
-{
- struct cfg80211_registered_device *rdev = ERR_PTR(-ENODEV);
- struct net_device *dev;
-
- mutex_lock(&cfg80211_mutex);
- dev = dev_get_by_index(net, ifindex);
- if (!dev)
- goto out;
- if (dev->ieee80211_ptr) {
- rdev = wiphy_to_dev(dev->ieee80211_ptr->wiphy);
- mutex_lock(&rdev->mtx);
- } else
- rdev = ERR_PTR(-ENODEV);
- dev_put(dev);
- out:
- mutex_unlock(&cfg80211_mutex);
- return rdev;
-}
-
-/* requires cfg80211_mutex to be held */
int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
char *newname)
{
struct cfg80211_registered_device *rdev2;
int wiphy_idx, taken = -1, result, digits;
- assert_cfg80211_lock();
+ ASSERT_RTNL();
/* prohibit calling the thing phy%d when %d is not its number */
sscanf(newname, PHY_NAME "%d%n", &wiphy_idx, &taken);
@@ -215,8 +190,7 @@ static void cfg80211_rfkill_poll(struct rfkill *rfkill, void *data)
void cfg80211_stop_p2p_device(struct cfg80211_registered_device *rdev,
struct wireless_dev *wdev)
{
- lockdep_assert_held(&rdev->devlist_mtx);
- lockdep_assert_held(&rdev->sched_scan_mtx);
+ ASSERT_RTNL();
if (WARN_ON(wdev->iftype != NL80211_IFTYPE_P2P_DEVICE))
return;
@@ -230,18 +204,15 @@ void cfg80211_stop_p2p_device(struct cfg80211_registered_device *rdev,
rdev->opencount--;
if (rdev->scan_req && rdev->scan_req->wdev == wdev) {
- bool busy = work_busy(&rdev->scan_done_wk);
-
/*
- * If the work isn't pending or running (in which case it would
- * be waiting for the lock we hold) the driver didn't properly
- * cancel the scan when the interface was removed. In this case
- * warn and leak the scan request object to not crash later.
+ * If the scan request wasn't notified as done, set it
+ * to aborted and leak it after a warning. The driver
+ * should have notified us that it ended at the latest
+ * during rdev_stop_p2p_device().
*/
- WARN_ON(!busy);
-
- rdev->scan_req->aborted = true;
- ___cfg80211_scan_done(rdev, !busy);
+ if (WARN_ON(!rdev->scan_req->notified))
+ rdev->scan_req->aborted = true;
+ ___cfg80211_scan_done(rdev, !rdev->scan_req->notified);
}
}
@@ -255,8 +226,6 @@ static int cfg80211_rfkill_set_block(void *data, bool blocked)
rtnl_lock();
- /* read-only iteration need not hold the devlist_mtx */
-
list_for_each_entry(wdev, &rdev->wdev_list, list) {
if (wdev->netdev) {
dev_close(wdev->netdev);
@@ -265,12 +234,7 @@ static int cfg80211_rfkill_set_block(void *data, bool blocked)
/* otherwise, check iftype */
switch (wdev->iftype) {
case NL80211_IFTYPE_P2P_DEVICE:
- /* but this requires it */
- mutex_lock(&rdev->devlist_mtx);
- mutex_lock(&rdev->sched_scan_mtx);
cfg80211_stop_p2p_device(rdev, wdev);
- mutex_unlock(&rdev->sched_scan_mtx);
- mutex_unlock(&rdev->devlist_mtx);
break;
default:
break;
@@ -298,10 +262,7 @@ static void cfg80211_event_work(struct work_struct *work)
event_work);
rtnl_lock();
- cfg80211_lock_rdev(rdev);
-
cfg80211_process_rdev_events(rdev);
- cfg80211_unlock_rdev(rdev);
rtnl_unlock();
}
@@ -309,7 +270,7 @@ static void cfg80211_event_work(struct work_struct *work)
struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv)
{
- static int wiphy_counter;
+ static atomic_t wiphy_counter = ATOMIC_INIT(0);
struct cfg80211_registered_device *rdev;
int alloc_size;
@@ -331,26 +292,18 @@ struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv)
rdev->ops = ops;
- mutex_lock(&cfg80211_mutex);
-
- rdev->wiphy_idx = wiphy_counter++;
+ rdev->wiphy_idx = atomic_inc_return(&wiphy_counter);
if (unlikely(rdev->wiphy_idx < 0)) {
- wiphy_counter--;
- mutex_unlock(&cfg80211_mutex);
/* ugh, wrapped! */
+ atomic_dec(&wiphy_counter);
kfree(rdev);
return NULL;
}
- mutex_unlock(&cfg80211_mutex);
-
/* give it a proper name */
dev_set_name(&rdev->wiphy.dev, PHY_NAME "%d", rdev->wiphy_idx);
- mutex_init(&rdev->mtx);
- mutex_init(&rdev->devlist_mtx);
- mutex_init(&rdev->sched_scan_mtx);
INIT_LIST_HEAD(&rdev->wdev_list);
INIT_LIST_HEAD(&rdev->beacon_registrations);
spin_lock_init(&rdev->beacon_registrations_lock);
@@ -598,11 +551,11 @@ int wiphy_register(struct wiphy *wiphy)
/* check and set up bitrates */
ieee80211_set_bitrate_flags(wiphy);
- mutex_lock(&cfg80211_mutex);
+ rtnl_lock();
res = device_add(&rdev->wiphy.dev);
if (res) {
- mutex_unlock(&cfg80211_mutex);
+ rtnl_unlock();
return res;
}
@@ -631,25 +584,18 @@ int wiphy_register(struct wiphy *wiphy)
}
cfg80211_debugfs_rdev_add(rdev);
- mutex_unlock(&cfg80211_mutex);
- /*
- * due to a locking dependency this has to be outside of the
- * cfg80211_mutex lock
- */
res = rfkill_register(rdev->rfkill);
if (res) {
device_del(&rdev->wiphy.dev);
- mutex_lock(&cfg80211_mutex);
debugfs_remove_recursive(rdev->wiphy.debugfsdir);
list_del_rcu(&rdev->list);
wiphy_regulatory_deregister(wiphy);
- mutex_unlock(&cfg80211_mutex);
+ rtnl_unlock();
return res;
}
- rtnl_lock();
rdev->wiphy.registered = true;
rtnl_unlock();
return 0;
@@ -679,25 +625,19 @@ void wiphy_unregister(struct wiphy *wiphy)
{
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
- rtnl_lock();
- rdev->wiphy.registered = false;
- rtnl_unlock();
-
- rfkill_unregister(rdev->rfkill);
-
- /* protect the device list */
- mutex_lock(&cfg80211_mutex);
-
wait_event(rdev->dev_wait, ({
int __count;
- mutex_lock(&rdev->devlist_mtx);
+ rtnl_lock();
__count = rdev->opencount;
- mutex_unlock(&rdev->devlist_mtx);
+ rtnl_unlock();
__count == 0; }));
- mutex_lock(&rdev->devlist_mtx);
+ rtnl_lock();
+ rdev->wiphy.registered = false;
+
+ rfkill_unregister(rdev->rfkill);
+
BUG_ON(!list_empty(&rdev->wdev_list));
- mutex_unlock(&rdev->devlist_mtx);
/*
* First remove the hardware from everywhere, this makes
@@ -708,20 +648,6 @@ void wiphy_unregister(struct wiphy *wiphy)
synchronize_rcu();
/*
- * Try to grab rdev->mtx. If a command is still in progress,
- * hopefully the driver will refuse it since it's tearing
- * down the device already. We wait for this command to complete
- * before unlinking the item from the list.
- * Note: as codified by the BUG_ON above we cannot get here if
- * a virtual interface is still present. Hence, we can only get
- * to lock contention here if userspace issues a command that
- * identified the hardware by wiphy index.
- */
- cfg80211_lock_rdev(rdev);
- /* nothing */
- cfg80211_unlock_rdev(rdev);
-
- /*
* If this device got a regulatory hint tell core its
* free to listen now to a new shiny device regulatory hint
*/
@@ -730,15 +656,17 @@ void wiphy_unregister(struct wiphy *wiphy)
cfg80211_rdev_list_generation++;
device_del(&rdev->wiphy.dev);
- mutex_unlock(&cfg80211_mutex);
+ rtnl_unlock();
flush_work(&rdev->scan_done_wk);
cancel_work_sync(&rdev->conn_work);
flush_work(&rdev->event_work);
cancel_delayed_work_sync(&rdev->dfs_update_channels_wk);
- if (rdev->wowlan && rdev->ops->set_wakeup)
+#ifdef CONFIG_PM
+ if (rdev->wiphy.wowlan_config && rdev->ops->set_wakeup)
rdev_set_wakeup(rdev, false);
+#endif
cfg80211_rdev_free_wowlan(rdev);
}
EXPORT_SYMBOL(wiphy_unregister);
@@ -748,9 +676,6 @@ void cfg80211_dev_free(struct cfg80211_registered_device *rdev)
struct cfg80211_internal_bss *scan, *tmp;
struct cfg80211_beacon_registration *reg, *treg;
rfkill_destroy(rdev->rfkill);
- mutex_destroy(&rdev->mtx);
- mutex_destroy(&rdev->devlist_mtx);
- mutex_destroy(&rdev->sched_scan_mtx);
list_for_each_entry_safe(reg, treg, &rdev->beacon_registrations, list) {
list_del(&reg->list);
kfree(reg);
@@ -775,36 +700,6 @@ void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked)
}
EXPORT_SYMBOL(wiphy_rfkill_set_hw_state);
-static void wdev_cleanup_work(struct work_struct *work)
-{
- struct wireless_dev *wdev;
- struct cfg80211_registered_device *rdev;
-
- wdev = container_of(work, struct wireless_dev, cleanup_work);
- rdev = wiphy_to_dev(wdev->wiphy);
-
- mutex_lock(&rdev->sched_scan_mtx);
-
- if (WARN_ON(rdev->scan_req && rdev->scan_req->wdev == wdev)) {
- rdev->scan_req->aborted = true;
- ___cfg80211_scan_done(rdev, true);
- }
-
- if (WARN_ON(rdev->sched_scan_req &&
- rdev->sched_scan_req->dev == wdev->netdev)) {
- __cfg80211_stop_sched_scan(rdev, false);
- }
-
- mutex_unlock(&rdev->sched_scan_mtx);
-
- mutex_lock(&rdev->devlist_mtx);
- rdev->opencount--;
- mutex_unlock(&rdev->devlist_mtx);
- wake_up(&rdev->dev_wait);
-
- dev_put(wdev->netdev);
-}
-
void cfg80211_unregister_wdev(struct wireless_dev *wdev)
{
struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
@@ -814,8 +709,6 @@ void cfg80211_unregister_wdev(struct wireless_dev *wdev)
if (WARN_ON(wdev->netdev))
return;
- mutex_lock(&rdev->devlist_mtx);
- mutex_lock(&rdev->sched_scan_mtx);
list_del_rcu(&wdev->list);
rdev->devlist_generation++;
@@ -827,8 +720,6 @@ void cfg80211_unregister_wdev(struct wireless_dev *wdev)
WARN_ON_ONCE(1);
break;
}
- mutex_unlock(&rdev->sched_scan_mtx);
- mutex_unlock(&rdev->devlist_mtx);
}
EXPORT_SYMBOL(cfg80211_unregister_wdev);
@@ -847,7 +738,7 @@ void cfg80211_update_iface_num(struct cfg80211_registered_device *rdev,
}
void cfg80211_leave(struct cfg80211_registered_device *rdev,
- struct wireless_dev *wdev)
+ struct wireless_dev *wdev)
{
struct net_device *dev = wdev->netdev;
@@ -857,9 +748,7 @@ void cfg80211_leave(struct cfg80211_registered_device *rdev,
break;
case NL80211_IFTYPE_P2P_CLIENT:
case NL80211_IFTYPE_STATION:
- mutex_lock(&rdev->sched_scan_mtx);
__cfg80211_stop_sched_scan(rdev, false);
- mutex_unlock(&rdev->sched_scan_mtx);
wdev_lock(wdev);
#ifdef CONFIG_CFG80211_WEXT
@@ -868,8 +757,8 @@ void cfg80211_leave(struct cfg80211_registered_device *rdev,
wdev->wext.ie_len = 0;
wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
#endif
- __cfg80211_disconnect(rdev, dev,
- WLAN_REASON_DEAUTH_LEAVING, true);
+ cfg80211_disconnect(rdev, dev,
+ WLAN_REASON_DEAUTH_LEAVING, true);
wdev_unlock(wdev);
break;
case NL80211_IFTYPE_MESH_POINT:
@@ -911,13 +800,11 @@ static int cfg80211_netdev_notifier_call(struct notifier_block *nb,
* are added with nl80211.
*/
mutex_init(&wdev->mtx);
- INIT_WORK(&wdev->cleanup_work, wdev_cleanup_work);
INIT_LIST_HEAD(&wdev->event_list);
spin_lock_init(&wdev->event_lock);
INIT_LIST_HEAD(&wdev->mgmt_registrations);
spin_lock_init(&wdev->mgmt_registrations_lock);
- mutex_lock(&rdev->devlist_mtx);
wdev->identifier = ++rdev->wdev_id;
list_add_rcu(&wdev->list, &rdev->wdev_list);
rdev->devlist_generation++;
@@ -930,7 +817,6 @@ static int cfg80211_netdev_notifier_call(struct notifier_block *nb,
}
wdev->netdev = dev;
wdev->sme_state = CFG80211_SME_IDLE;
- mutex_unlock(&rdev->devlist_mtx);
#ifdef CONFIG_CFG80211_WEXT
wdev->wext.default_key = -1;
wdev->wext.default_mgmt_key = -1;
@@ -956,26 +842,22 @@ static int cfg80211_netdev_notifier_call(struct notifier_block *nb,
break;
case NETDEV_DOWN:
cfg80211_update_iface_num(rdev, wdev->iftype, -1);
- dev_hold(dev);
- queue_work(cfg80211_wq, &wdev->cleanup_work);
+ if (rdev->scan_req && rdev->scan_req->wdev == wdev) {
+ if (WARN_ON(!rdev->scan_req->notified))
+ rdev->scan_req->aborted = true;
+ ___cfg80211_scan_done(rdev, true);
+ }
+
+ 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);
break;
case NETDEV_UP:
- /*
- * If we have a really quick DOWN/UP succession we may
- * have this work still pending ... cancel it and see
- * if it was pending, in which case we need to account
- * for some of the work it would have done.
- */
- if (cancel_work_sync(&wdev->cleanup_work)) {
- mutex_lock(&rdev->devlist_mtx);
- rdev->opencount--;
- mutex_unlock(&rdev->devlist_mtx);
- dev_put(dev);
- }
cfg80211_update_iface_num(rdev, wdev->iftype, 1);
- cfg80211_lock_rdev(rdev);
- mutex_lock(&rdev->devlist_mtx);
- mutex_lock(&rdev->sched_scan_mtx);
wdev_lock(wdev);
switch (wdev->iftype) {
#ifdef CONFIG_CFG80211_WEXT
@@ -1007,10 +889,7 @@ static int cfg80211_netdev_notifier_call(struct notifier_block *nb,
break;
}
wdev_unlock(wdev);
- mutex_unlock(&rdev->sched_scan_mtx);
rdev->opencount++;
- mutex_unlock(&rdev->devlist_mtx);
- cfg80211_unlock_rdev(rdev);
/*
* Configure power management to the driver here so that its
@@ -1027,12 +906,6 @@ static int cfg80211_netdev_notifier_call(struct notifier_block *nb,
break;
case NETDEV_UNREGISTER:
/*
- * NB: cannot take rdev->mtx here because this may be
- * called within code protected by it when interfaces
- * are removed with nl80211.
- */
- mutex_lock(&rdev->devlist_mtx);
- /*
* It is possible to get NETDEV_UNREGISTER
* multiple times. To detect that, check
* that the interface is still on the list
@@ -1048,7 +921,6 @@ static int cfg80211_netdev_notifier_call(struct notifier_block *nb,
kfree(wdev->wext.keys);
#endif
}
- mutex_unlock(&rdev->devlist_mtx);
/*
* synchronise (so that we won't find this netdev
* from other code any more) and then clear the list
@@ -1068,9 +940,7 @@ static int cfg80211_netdev_notifier_call(struct notifier_block *nb,
return notifier_from_errno(-EOPNOTSUPP);
if (rfkill_blocked(rdev->rfkill))
return notifier_from_errno(-ERFKILL);
- mutex_lock(&rdev->devlist_mtx);
ret = cfg80211_can_add_interface(rdev, wdev->iftype);
- mutex_unlock(&rdev->devlist_mtx);
if (ret)
return notifier_from_errno(ret);
break;
@@ -1088,12 +958,10 @@ static void __net_exit cfg80211_pernet_exit(struct net *net)
struct cfg80211_registered_device *rdev;
rtnl_lock();
- mutex_lock(&cfg80211_mutex);
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));
}
- mutex_unlock(&cfg80211_mutex);
rtnl_unlock();
}
diff --git a/net/wireless/core.h b/net/wireless/core.h
index fd35dae547c4..a65eaf8a84c1 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -5,7 +5,6 @@
*/
#ifndef __NET_WIRELESS_CORE_H
#define __NET_WIRELESS_CORE_H
-#include <linux/mutex.h>
#include <linux/list.h>
#include <linux/netdevice.h>
#include <linux/rbtree.h>
@@ -23,11 +22,6 @@
struct cfg80211_registered_device {
const struct cfg80211_ops *ops;
struct list_head list;
- /* we hold this mutex during any call so that
- * we cannot do multiple calls at once, and also
- * to avoid the deregister call to proceed while
- * any call is in progress */
- struct mutex mtx;
/* rfkill support */
struct rfkill_ops rfkill_ops;
@@ -49,9 +43,7 @@ struct cfg80211_registered_device {
/* wiphy index, internal only */
int wiphy_idx;
- /* associated wireless interfaces */
- struct mutex devlist_mtx;
- /* protected by devlist_mtx or RCU */
+ /* associated wireless interfaces, protected by rtnl or RCU */
struct list_head wdev_list;
int devlist_generation, wdev_id;
int opencount; /* also protected by devlist_mtx */
@@ -75,8 +67,6 @@ struct cfg80211_registered_device {
struct work_struct scan_done_wk;
struct work_struct sched_scan_results_wk;
- struct mutex sched_scan_mtx;
-
#ifdef CONFIG_NL80211_TESTMODE
struct genl_info *testmode_info;
#endif
@@ -84,8 +74,6 @@ struct cfg80211_registered_device {
struct work_struct conn_work;
struct work_struct event_work;
- struct cfg80211_wowlan *wowlan;
-
struct delayed_work dfs_update_channels_wk;
/* netlink port which started critical protocol (0 means not started) */
@@ -106,29 +94,26 @@ struct cfg80211_registered_device *wiphy_to_dev(struct wiphy *wiphy)
static inline void
cfg80211_rdev_free_wowlan(struct cfg80211_registered_device *rdev)
{
+#ifdef CONFIG_PM
int i;
- if (!rdev->wowlan)
+ if (!rdev->wiphy.wowlan_config)
return;
- for (i = 0; i < rdev->wowlan->n_patterns; i++)
- kfree(rdev->wowlan->patterns[i].mask);
- kfree(rdev->wowlan->patterns);
- if (rdev->wowlan->tcp && rdev->wowlan->tcp->sock)
- sock_release(rdev->wowlan->tcp->sock);
- kfree(rdev->wowlan->tcp);
- kfree(rdev->wowlan);
+ for (i = 0; i < rdev->wiphy.wowlan_config->n_patterns; i++)
+ kfree(rdev->wiphy.wowlan_config->patterns[i].mask);
+ kfree(rdev->wiphy.wowlan_config->patterns);
+ if (rdev->wiphy.wowlan_config->tcp &&
+ rdev->wiphy.wowlan_config->tcp->sock)
+ sock_release(rdev->wiphy.wowlan_config->tcp->sock);
+ kfree(rdev->wiphy.wowlan_config->tcp);
+ kfree(rdev->wiphy.wowlan_config);
+#endif
}
extern struct workqueue_struct *cfg80211_wq;
-extern struct mutex cfg80211_mutex;
extern struct list_head cfg80211_rdev_list;
extern int cfg80211_rdev_list_generation;
-static inline void assert_cfg80211_lock(void)
-{
- lockdep_assert_held(&cfg80211_mutex);
-}
-
struct cfg80211_internal_bss {
struct list_head list;
struct list_head hidden_list;
@@ -161,27 +146,11 @@ static inline void cfg80211_unhold_bss(struct cfg80211_internal_bss *bss)
struct cfg80211_registered_device *cfg80211_rdev_by_wiphy_idx(int wiphy_idx);
int get_wiphy_idx(struct wiphy *wiphy);
-/* requires cfg80211_rdev_mutex to be held! */
struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx);
-/* identical to cfg80211_get_dev_from_info but only operate on ifindex */
-extern struct cfg80211_registered_device *
-cfg80211_get_dev_from_ifindex(struct net *net, int ifindex);
-
int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
struct net *net);
-static inline void cfg80211_lock_rdev(struct cfg80211_registered_device *rdev)
-{
- mutex_lock(&rdev->mtx);
-}
-
-static inline void cfg80211_unlock_rdev(struct cfg80211_registered_device *rdev)
-{
- BUG_ON(IS_ERR(rdev) || !rdev);
- mutex_unlock(&rdev->mtx);
-}
-
static inline void wdev_lock(struct wireless_dev *wdev)
__acquires(wdev)
{
@@ -196,7 +165,7 @@ static inline void wdev_unlock(struct wireless_dev *wdev)
mutex_unlock(&wdev->mtx);
}
-#define ASSERT_RDEV_LOCK(rdev) lockdep_assert_held(&(rdev)->mtx)
+#define ASSERT_RDEV_LOCK(rdev) ASSERT_RTNL()
#define ASSERT_WDEV_LOCK(wdev) lockdep_assert_held(&(wdev)->mtx)
static inline bool cfg80211_has_monitors_only(struct cfg80211_registered_device *rdev)
@@ -314,38 +283,21 @@ int cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
struct net_device *dev);
/* MLME */
-int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
- struct net_device *dev,
- struct ieee80211_channel *chan,
- enum nl80211_auth_type auth_type,
- const u8 *bssid,
- const u8 *ssid, int ssid_len,
- const u8 *ie, int ie_len,
- const u8 *key, int key_len, int key_idx,
- const u8 *sae_data, int sae_data_len);
int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
- struct net_device *dev, struct ieee80211_channel *chan,
- enum nl80211_auth_type auth_type, const u8 *bssid,
+ struct net_device *dev,
+ struct ieee80211_channel *chan,
+ enum nl80211_auth_type auth_type,
+ const u8 *bssid,
const u8 *ssid, int ssid_len,
const u8 *ie, int ie_len,
const u8 *key, int key_len, int key_idx,
const u8 *sae_data, int sae_data_len);
-int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
- struct net_device *dev,
- struct ieee80211_channel *chan,
- const u8 *bssid,
- const u8 *ssid, int ssid_len,
- struct cfg80211_assoc_request *req);
int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
struct net_device *dev,
struct ieee80211_channel *chan,
const u8 *bssid,
const u8 *ssid, int ssid_len,
struct cfg80211_assoc_request *req);
-int __cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
- struct net_device *dev, const u8 *bssid,
- const u8 *ie, int ie_len, u16 reason,
- bool local_state_change);
int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
struct net_device *dev, const u8 *bssid,
const u8 *ie, int ie_len, u16 reason,
@@ -377,18 +329,11 @@ void cfg80211_oper_and_vht_capa(struct ieee80211_vht_cap *vht_capa,
const struct ieee80211_vht_cap *vht_capa_mask);
/* SME */
-int __cfg80211_connect(struct cfg80211_registered_device *rdev,
- struct net_device *dev,
- struct cfg80211_connect_params *connect,
- struct cfg80211_cached_keys *connkeys,
- const u8 *prev_bssid);
int cfg80211_connect(struct cfg80211_registered_device *rdev,
struct net_device *dev,
struct cfg80211_connect_params *connect,
- struct cfg80211_cached_keys *connkeys);
-int __cfg80211_disconnect(struct cfg80211_registered_device *rdev,
- struct net_device *dev, u16 reason,
- bool wextev);
+ struct cfg80211_cached_keys *connkeys,
+ const u8 *prev_bssid);
int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
struct net_device *dev, u16 reason,
bool wextev);
diff --git a/net/wireless/debugfs.c b/net/wireless/debugfs.c
index 920cabe0461b..90d050036624 100644
--- a/net/wireless/debugfs.c
+++ b/net/wireless/debugfs.c
@@ -74,7 +74,7 @@ static ssize_t ht40allow_map_read(struct file *file,
if (!buf)
return -ENOMEM;
- mutex_lock(&cfg80211_mutex);
+ rtnl_lock();
for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
sband = wiphy->bands[band];
@@ -85,7 +85,7 @@ static ssize_t ht40allow_map_read(struct file *file,
buf, buf_size, offset);
}
- mutex_unlock(&cfg80211_mutex);
+ rtnl_unlock();
r = simple_read_from_buffer(user_buf, count, ppos, buf, offset);
diff --git a/net/wireless/ibss.c b/net/wireless/ibss.c
index d80e47194d49..5449c5a6de84 100644
--- a/net/wireless/ibss.c
+++ b/net/wireless/ibss.c
@@ -152,11 +152,11 @@ int cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
struct wireless_dev *wdev = dev->ieee80211_ptr;
int err;
- mutex_lock(&rdev->devlist_mtx);
+ ASSERT_RTNL();
+
wdev_lock(wdev);
err = __cfg80211_join_ibss(rdev, dev, params, connkeys);
wdev_unlock(wdev);
- mutex_unlock(&rdev->devlist_mtx);
return err;
}
@@ -359,11 +359,9 @@ int cfg80211_ibss_wext_siwfreq(struct net_device *dev,
wdev->wext.ibss.channel_fixed = false;
}
- mutex_lock(&rdev->devlist_mtx);
wdev_lock(wdev);
err = cfg80211_ibss_wext_join(rdev, wdev);
wdev_unlock(wdev);
- mutex_unlock(&rdev->devlist_mtx);
return err;
}
@@ -429,11 +427,9 @@ int cfg80211_ibss_wext_siwessid(struct net_device *dev,
memcpy(wdev->wext.ibss.ssid, ssid, len);
wdev->wext.ibss.ssid_len = len;
- mutex_lock(&rdev->devlist_mtx);
wdev_lock(wdev);
err = cfg80211_ibss_wext_join(rdev, wdev);
wdev_unlock(wdev);
- mutex_unlock(&rdev->devlist_mtx);
return err;
}
@@ -512,11 +508,9 @@ int cfg80211_ibss_wext_siwap(struct net_device *dev,
} else
wdev->wext.ibss.bssid = NULL;
- mutex_lock(&rdev->devlist_mtx);
wdev_lock(wdev);
err = cfg80211_ibss_wext_join(rdev, wdev);
wdev_unlock(wdev);
- mutex_unlock(&rdev->devlist_mtx);
return err;
}
diff --git a/net/wireless/mesh.c b/net/wireless/mesh.c
index 0bb93f3061a4..5dfb289ab761 100644
--- a/net/wireless/mesh.c
+++ b/net/wireless/mesh.c
@@ -82,6 +82,7 @@ const struct mesh_setup default_mesh_setup = {
.sync_method = IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET,
.path_sel_proto = IEEE80211_PATH_PROTOCOL_HWMP,
.path_metric = IEEE80211_PATH_METRIC_AIRTIME,
+ .auth_id = 0, /* open */
.ie = NULL,
.ie_len = 0,
.is_secure = false,
@@ -185,11 +186,9 @@ int cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
struct wireless_dev *wdev = dev->ieee80211_ptr;
int err;
- mutex_lock(&rdev->devlist_mtx);
wdev_lock(wdev);
err = __cfg80211_join_mesh(rdev, dev, setup, conf);
wdev_unlock(wdev);
- mutex_unlock(&rdev->devlist_mtx);
return err;
}
diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index 0c7b7dd855f6..7bde5d9c0003 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -25,12 +25,9 @@ void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len)
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
trace_cfg80211_send_rx_auth(dev);
- wdev_lock(wdev);
nl80211_send_rx_auth(rdev, dev, buf, len, GFP_KERNEL);
cfg80211_sme_rx_auth(dev, buf, len);
-
- wdev_unlock(wdev);
}
EXPORT_SYMBOL(cfg80211_send_rx_auth);
@@ -46,7 +43,6 @@ void cfg80211_send_rx_assoc(struct net_device *dev, struct cfg80211_bss *bss,
int ieoffs = offsetof(struct ieee80211_mgmt, u.assoc_resp.variable);
trace_cfg80211_send_rx_assoc(dev, bss);
- wdev_lock(wdev);
status_code = le16_to_cpu(mgmt->u.assoc_resp.status_code);
@@ -59,7 +55,7 @@ void cfg80211_send_rx_assoc(struct net_device *dev, struct cfg80211_bss *bss,
if (status_code != WLAN_STATUS_SUCCESS && wdev->conn &&
cfg80211_sme_failed_reassoc(wdev)) {
cfg80211_put_bss(wiphy, bss);
- goto out;
+ return;
}
nl80211_send_rx_assoc(rdev, dev, buf, len, GFP_KERNEL);
@@ -71,7 +67,7 @@ void cfg80211_send_rx_assoc(struct net_device *dev, struct cfg80211_bss *bss,
* sme will schedule work that does it later.
*/
cfg80211_put_bss(wiphy, bss);
- goto out;
+ return;
}
if (!wdev->conn && wdev->sme_state == CFG80211_SME_IDLE) {
@@ -87,13 +83,11 @@ void cfg80211_send_rx_assoc(struct net_device *dev, struct cfg80211_bss *bss,
__cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, ie, len - ieoffs,
status_code,
status_code == WLAN_STATUS_SUCCESS, bss);
- out:
- wdev_unlock(wdev);
}
EXPORT_SYMBOL(cfg80211_send_rx_assoc);
-void __cfg80211_send_deauth(struct net_device *dev,
- const u8 *buf, size_t len)
+void cfg80211_send_deauth(struct net_device *dev,
+ const u8 *buf, size_t len)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct wiphy *wiphy = wdev->wiphy;
@@ -102,7 +96,7 @@ void __cfg80211_send_deauth(struct net_device *dev,
const u8 *bssid = mgmt->bssid;
bool was_current = false;
- trace___cfg80211_send_deauth(dev);
+ trace_cfg80211_send_deauth(dev);
ASSERT_WDEV_LOCK(wdev);
if (wdev->current_bss &&
@@ -129,20 +123,10 @@ void __cfg80211_send_deauth(struct net_device *dev,
false, NULL);
}
}
-EXPORT_SYMBOL(__cfg80211_send_deauth);
-
-void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len)
-{
- struct wireless_dev *wdev = dev->ieee80211_ptr;
-
- wdev_lock(wdev);
- __cfg80211_send_deauth(dev, buf, len);
- wdev_unlock(wdev);
-}
EXPORT_SYMBOL(cfg80211_send_deauth);
-void __cfg80211_send_disassoc(struct net_device *dev,
- const u8 *buf, size_t len)
+void cfg80211_send_disassoc(struct net_device *dev,
+ const u8 *buf, size_t len)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct wiphy *wiphy = wdev->wiphy;
@@ -152,7 +136,7 @@ void __cfg80211_send_disassoc(struct net_device *dev,
u16 reason_code;
bool from_ap;
- trace___cfg80211_send_disassoc(dev);
+ trace_cfg80211_send_disassoc(dev);
ASSERT_WDEV_LOCK(wdev);
nl80211_send_disassoc(rdev, dev, buf, len, GFP_KERNEL);
@@ -175,16 +159,6 @@ void __cfg80211_send_disassoc(struct net_device *dev,
from_ap = !ether_addr_equal(mgmt->sa, dev->dev_addr);
__cfg80211_disconnected(dev, NULL, 0, reason_code, from_ap);
}
-EXPORT_SYMBOL(__cfg80211_send_disassoc);
-
-void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len)
-{
- struct wireless_dev *wdev = dev->ieee80211_ptr;
-
- wdev_lock(wdev);
- __cfg80211_send_disassoc(dev, buf, len);
- wdev_unlock(wdev);
-}
EXPORT_SYMBOL(cfg80211_send_disassoc);
void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr)
@@ -194,15 +168,12 @@ void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr)
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
trace_cfg80211_send_auth_timeout(dev, addr);
- wdev_lock(wdev);
nl80211_send_auth_timeout(rdev, dev, addr, GFP_KERNEL);
if (wdev->sme_state == CFG80211_SME_CONNECTING)
__cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0,
WLAN_STATUS_UNSPECIFIED_FAILURE,
false, NULL);
-
- wdev_unlock(wdev);
}
EXPORT_SYMBOL(cfg80211_send_auth_timeout);
@@ -213,15 +184,12 @@ void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr)
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
trace_cfg80211_send_assoc_timeout(dev, addr);
- wdev_lock(wdev);
nl80211_send_assoc_timeout(rdev, dev, addr, GFP_KERNEL);
if (wdev->sme_state == CFG80211_SME_CONNECTING)
__cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0,
WLAN_STATUS_UNSPECIFIED_FAILURE,
false, NULL);
-
- wdev_unlock(wdev);
}
EXPORT_SYMBOL(cfg80211_send_assoc_timeout);
@@ -253,18 +221,27 @@ void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr,
EXPORT_SYMBOL(cfg80211_michael_mic_failure);
/* some MLME handling for userspace SME */
-int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
- struct net_device *dev,
- struct ieee80211_channel *chan,
- enum nl80211_auth_type auth_type,
- const u8 *bssid,
- const u8 *ssid, int ssid_len,
- const u8 *ie, int ie_len,
- const u8 *key, int key_len, int key_idx,
- const u8 *sae_data, int sae_data_len)
+int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
+ struct net_device *dev,
+ struct ieee80211_channel *chan,
+ enum nl80211_auth_type auth_type,
+ const u8 *bssid,
+ const u8 *ssid, int ssid_len,
+ const u8 *ie, int ie_len,
+ const u8 *key, int key_len, int key_idx,
+ const u8 *sae_data, int sae_data_len)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
- struct cfg80211_auth_request req;
+ struct cfg80211_auth_request req = {
+ .ie = ie,
+ .ie_len = ie_len,
+ .sae_data = sae_data,
+ .sae_data_len = sae_data_len,
+ .auth_type = auth_type,
+ .key = key,
+ .key_len = key_len,
+ .key_idx = key_idx,
+ };
int err;
ASSERT_WDEV_LOCK(wdev);
@@ -277,18 +254,8 @@ int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
ether_addr_equal(bssid, wdev->current_bss->pub.bssid))
return -EALREADY;
- memset(&req, 0, sizeof(req));
-
- req.ie = ie;
- req.ie_len = ie_len;
- req.sae_data = sae_data;
- req.sae_data_len = sae_data_len;
- req.auth_type = auth_type;
req.bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len,
WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
- req.key = key;
- req.key_len = key_len;
- req.key_idx = key_idx;
if (!req.bss)
return -ENOENT;
@@ -304,28 +271,6 @@ out:
return err;
}
-int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
- struct net_device *dev, struct ieee80211_channel *chan,
- enum nl80211_auth_type auth_type, const u8 *bssid,
- const u8 *ssid, int ssid_len,
- const u8 *ie, int ie_len,
- const u8 *key, int key_len, int key_idx,
- const u8 *sae_data, int sae_data_len)
-{
- int err;
-
- mutex_lock(&rdev->devlist_mtx);
- wdev_lock(dev->ieee80211_ptr);
- err = __cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
- ssid, ssid_len, ie, ie_len,
- key, key_len, key_idx,
- sae_data, sae_data_len);
- wdev_unlock(dev->ieee80211_ptr);
- mutex_unlock(&rdev->devlist_mtx);
-
- return err;
-}
-
/* Do a logical ht_capa &= ht_capa_mask. */
void cfg80211_oper_and_ht_capa(struct ieee80211_ht_cap *ht_capa,
const struct ieee80211_ht_cap *ht_capa_mask)
@@ -360,12 +305,12 @@ void cfg80211_oper_and_vht_capa(struct ieee80211_vht_cap *vht_capa,
p1[i] &= p2[i];
}
-int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
- struct net_device *dev,
- struct ieee80211_channel *chan,
- const u8 *bssid,
- const u8 *ssid, int ssid_len,
- struct cfg80211_assoc_request *req)
+int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
+ struct net_device *dev,
+ struct ieee80211_channel *chan,
+ const u8 *bssid,
+ const u8 *ssid, int ssid_len,
+ struct cfg80211_assoc_request *req)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
int err;
@@ -415,30 +360,10 @@ out:
return err;
}
-int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
- struct net_device *dev,
- struct ieee80211_channel *chan,
- const u8 *bssid,
- const u8 *ssid, int ssid_len,
- struct cfg80211_assoc_request *req)
-{
- struct wireless_dev *wdev = dev->ieee80211_ptr;
- int err;
-
- mutex_lock(&rdev->devlist_mtx);
- wdev_lock(wdev);
- err = __cfg80211_mlme_assoc(rdev, dev, chan, bssid,
- ssid, ssid_len, req);
- wdev_unlock(wdev);
- mutex_unlock(&rdev->devlist_mtx);
-
- return err;
-}
-
-int __cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
- struct net_device *dev, const u8 *bssid,
- const u8 *ie, int ie_len, u16 reason,
- bool local_state_change)
+int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
+ struct net_device *dev, const u8 *bssid,
+ const u8 *ie, int ie_len, u16 reason,
+ bool local_state_change)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_deauth_request req = {
@@ -458,29 +383,18 @@ int __cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
return rdev_deauth(rdev, dev, &req);
}
-int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
- struct net_device *dev, const u8 *bssid,
- const u8 *ie, int ie_len, u16 reason,
- bool local_state_change)
-{
- struct wireless_dev *wdev = dev->ieee80211_ptr;
- int err;
-
- wdev_lock(wdev);
- err = __cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason,
- local_state_change);
- wdev_unlock(wdev);
-
- return err;
-}
-
-static int __cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
- struct net_device *dev, const u8 *bssid,
- const u8 *ie, int ie_len, u16 reason,
- bool local_state_change)
+int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
+ struct net_device *dev, const u8 *bssid,
+ const u8 *ie, int ie_len, u16 reason,
+ bool local_state_change)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
- struct cfg80211_disassoc_request req;
+ struct cfg80211_disassoc_request req = {
+ .reason_code = reason,
+ .local_state_change = local_state_change,
+ .ie = ie,
+ .ie_len = ie_len,
+ };
ASSERT_WDEV_LOCK(wdev);
@@ -490,11 +404,6 @@ static int __cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
if (WARN(!wdev->current_bss, "sme_state=%d\n", wdev->sme_state))
return -ENOTCONN;
- memset(&req, 0, sizeof(req));
- req.reason_code = reason;
- req.local_state_change = local_state_change;
- req.ie = ie;
- req.ie_len = ie_len;
if (ether_addr_equal(wdev->current_bss->pub.bssid, bssid))
req.bss = &wdev->current_bss->pub;
else
@@ -503,44 +412,25 @@ static int __cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
return rdev_disassoc(rdev, dev, &req);
}
-int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
- struct net_device *dev, const u8 *bssid,
- const u8 *ie, int ie_len, u16 reason,
- bool local_state_change)
-{
- struct wireless_dev *wdev = dev->ieee80211_ptr;
- int err;
-
- wdev_lock(wdev);
- err = __cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason,
- local_state_change);
- wdev_unlock(wdev);
-
- return err;
-}
-
void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
struct net_device *dev)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
- struct cfg80211_deauth_request req;
u8 bssid[ETH_ALEN];
+ struct cfg80211_deauth_request req = {
+ .reason_code = WLAN_REASON_DEAUTH_LEAVING,
+ .bssid = bssid,
+ };
ASSERT_WDEV_LOCK(wdev);
if (!rdev->ops->deauth)
return;
- memset(&req, 0, sizeof(req));
- req.reason_code = WLAN_REASON_DEAUTH_LEAVING;
- req.ie = NULL;
- req.ie_len = 0;
-
if (!wdev->current_bss)
return;
memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN);
- req.bssid = bssid;
rdev_deauth(rdev, dev, &req);
if (wdev->current_bss) {
@@ -848,7 +738,7 @@ void cfg80211_dfs_channels_update_work(struct work_struct *work)
dfs_update_channels_wk);
wiphy = &rdev->wiphy;
- mutex_lock(&cfg80211_mutex);
+ rtnl_lock();
for (bandid = 0; bandid < IEEE80211_NUM_BANDS; bandid++) {
sband = wiphy->bands[bandid];
if (!sband)
@@ -881,7 +771,7 @@ void cfg80211_dfs_channels_update_work(struct work_struct *work)
check_again = true;
}
}
- mutex_unlock(&cfg80211_mutex);
+ rtnl_unlock();
/* reschedule if there are other channels waiting to be cleared again */
if (check_again)
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index d5aed3bb3945..31d265f36d2c 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -37,10 +37,10 @@ static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
/* the netlink family */
static struct genl_family nl80211_fam = {
- .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
- .name = "nl80211", /* have users key off the name instead */
- .hdrsize = 0, /* no private header */
- .version = 1, /* no particular meaning now */
+ .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
+ .name = NL80211_GENL_NAME, /* have users key off the name instead */
+ .hdrsize = 0, /* no private header */
+ .version = 1, /* no particular meaning now */
.maxattr = NL80211_ATTR_MAX,
.netnsok = true,
.pre_doit = nl80211_pre_doit,
@@ -59,7 +59,7 @@ __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
int wiphy_idx = -1;
int ifidx = -1;
- assert_cfg80211_lock();
+ ASSERT_RTNL();
if (!have_ifidx && !have_wdev_id)
return ERR_PTR(-EINVAL);
@@ -80,7 +80,6 @@ __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
continue;
- mutex_lock(&rdev->devlist_mtx);
list_for_each_entry(wdev, &rdev->wdev_list, list) {
if (have_ifidx && wdev->netdev &&
wdev->netdev->ifindex == ifidx) {
@@ -92,7 +91,6 @@ __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
break;
}
}
- mutex_unlock(&rdev->devlist_mtx);
if (result)
break;
@@ -109,7 +107,7 @@ __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
struct cfg80211_registered_device *rdev = NULL, *tmp;
struct net_device *netdev;
- assert_cfg80211_lock();
+ ASSERT_RTNL();
if (!attrs[NL80211_ATTR_WIPHY] &&
!attrs[NL80211_ATTR_IFINDEX] &&
@@ -128,14 +126,12 @@ __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
if (tmp) {
/* make sure wdev exists */
- mutex_lock(&tmp->devlist_mtx);
list_for_each_entry(wdev, &tmp->wdev_list, list) {
if (wdev->identifier != (u32)wdev_id)
continue;
found = true;
break;
}
- mutex_unlock(&tmp->devlist_mtx);
if (!found)
tmp = NULL;
@@ -182,19 +178,6 @@ __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
/*
* This function returns a pointer to the driver
* that the genl_info item that is passed refers to.
- * If successful, it returns non-NULL and also locks
- * the driver's mutex!
- *
- * This means that you need to call cfg80211_unlock_rdev()
- * before being allowed to acquire &cfg80211_mutex!
- *
- * This is necessary because we need to lock the global
- * mutex to get an item off the list safely, and then
- * we lock the rdev mutex so it doesn't go away under us.
- *
- * We don't want to keep cfg80211_mutex locked
- * for all the time in order to allow requests on
- * other interfaces to go through at the same time.
*
* The result of this can be a PTR_ERR and hence must
* be checked with IS_ERR() for errors.
@@ -202,20 +185,7 @@ __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
static struct cfg80211_registered_device *
cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
-
- mutex_lock(&cfg80211_mutex);
- rdev = __cfg80211_rdev_from_attrs(netns, info->attrs);
-
- /* if it is not an error we grab the lock on
- * it to assure it won't be going away while
- * we operate on it */
- if (!IS_ERR(rdev))
- mutex_lock(&rdev->mtx);
-
- mutex_unlock(&cfg80211_mutex);
-
- return rdev;
+ return __cfg80211_rdev_from_attrs(netns, info->attrs);
}
/* policy for the attributes */
@@ -378,6 +348,7 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
[NL80211_ATTR_MDID] = { .type = NLA_U16 },
[NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
.len = IEEE80211_MAX_DATA_LEN },
+ [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
};
/* policy for the key attributes */
@@ -455,7 +426,6 @@ static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
int err;
rtnl_lock();
- mutex_lock(&cfg80211_mutex);
if (!cb->args[0]) {
err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
@@ -484,14 +454,12 @@ static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
*rdev = wiphy_to_dev(wiphy);
*wdev = NULL;
- mutex_lock(&(*rdev)->devlist_mtx);
list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
if (tmp->identifier == cb->args[1]) {
*wdev = tmp;
break;
}
}
- mutex_unlock(&(*rdev)->devlist_mtx);
if (!*wdev) {
err = -ENODEV;
@@ -499,19 +467,14 @@ static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
}
}
- cfg80211_lock_rdev(*rdev);
-
- mutex_unlock(&cfg80211_mutex);
return 0;
out_unlock:
- mutex_unlock(&cfg80211_mutex);
rtnl_unlock();
return err;
}
static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
{
- cfg80211_unlock_rdev(rdev);
rtnl_unlock();
}
@@ -1567,7 +1530,7 @@ static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
struct nlattr **tb = nl80211_fam.attrbuf;
int res;
- mutex_lock(&cfg80211_mutex);
+ rtnl_lock();
res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
tb, nl80211_fam.maxattr, nl80211_policy);
if (res == 0) {
@@ -1581,10 +1544,8 @@ static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
netdev = dev_get_by_index(sock_net(skb->sk), ifidx);
- if (!netdev) {
- mutex_unlock(&cfg80211_mutex);
+ if (!netdev)
return -ENODEV;
- }
if (netdev->ieee80211_ptr) {
dev = wiphy_to_dev(
netdev->ieee80211_ptr->wiphy);
@@ -1628,7 +1589,6 @@ static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
!skb->len &&
cb->min_dump_alloc < 4096) {
cb->min_dump_alloc = 4096;
- mutex_unlock(&cfg80211_mutex);
return 1;
}
idx--;
@@ -1637,7 +1597,7 @@ static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
} while (cb->args[1] > 0);
break;
}
- mutex_unlock(&cfg80211_mutex);
+ rtnl_unlock();
cb->args[0] = idx;
@@ -1792,7 +1752,6 @@ static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
if (result)
return result;
- mutex_lock(&rdev->devlist_mtx);
switch (iftype) {
case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_P2P_GO:
@@ -1816,7 +1775,6 @@ static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
default:
result = -EINVAL;
}
- mutex_unlock(&rdev->devlist_mtx);
return result;
}
@@ -1865,6 +1823,8 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
u32 frag_threshold = 0, rts_threshold = 0;
u8 coverage_class = 0;
+ ASSERT_RTNL();
+
/*
* Try to find the wiphy and netdev. Normally this
* function shouldn't need the netdev, but this is
@@ -1874,31 +1834,25 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
* 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) {
+ if (netdev && netdev->ieee80211_ptr)
rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
- mutex_lock(&rdev->mtx);
- } else
+ else
netdev = NULL;
}
if (!netdev) {
rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
info->attrs);
- if (IS_ERR(rdev)) {
- mutex_unlock(&cfg80211_mutex);
+ if (IS_ERR(rdev))
return PTR_ERR(rdev);
- }
wdev = NULL;
netdev = NULL;
result = 0;
-
- mutex_lock(&rdev->mtx);
} else
wdev = netdev->ieee80211_ptr;
@@ -1911,8 +1865,6 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
result = cfg80211_dev_rename(
rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
- mutex_unlock(&cfg80211_mutex);
-
if (result)
goto bad_res;
@@ -2119,7 +2071,6 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
}
bad_res:
- mutex_unlock(&rdev->mtx);
if (netdev)
dev_put(netdev);
return result;
@@ -2217,7 +2168,7 @@ static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *
struct cfg80211_registered_device *rdev;
struct wireless_dev *wdev;
- mutex_lock(&cfg80211_mutex);
+ rtnl_lock();
list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
continue;
@@ -2227,7 +2178,6 @@ static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *
}
if_idx = 0;
- mutex_lock(&rdev->devlist_mtx);
list_for_each_entry(wdev, &rdev->wdev_list, list) {
if (if_idx < if_start) {
if_idx++;
@@ -2236,17 +2186,15 @@ static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *
if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
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);
+ rtnl_unlock();
cb->args[0] = wp_idx;
cb->args[1] = if_idx;
@@ -2279,6 +2227,7 @@ static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
[NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
[NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
[NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
+ [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
};
static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
@@ -2390,6 +2339,10 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
change = true;
}
+ if (flags && (*flags & NL80211_MNTR_FLAG_ACTIVE) &&
+ !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
+ return -EOPNOTSUPP;
+
if (change)
err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
else
@@ -2447,6 +2400,11 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
&flags);
+
+ if (!err && (flags & NL80211_MNTR_FLAG_ACTIVE) &&
+ !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
+ return -EOPNOTSUPP;
+
wdev = rdev_add_virtual_intf(rdev,
nla_data(info->attrs[NL80211_ATTR_IFNAME]),
type, err ? NULL : &flags, &params);
@@ -2479,11 +2437,9 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
INIT_LIST_HEAD(&wdev->mgmt_registrations);
spin_lock_init(&wdev->mgmt_registrations_lock);
- mutex_lock(&rdev->devlist_mtx);
wdev->identifier = ++rdev->wdev_id;
list_add_rcu(&wdev->list, &rdev->wdev_list);
rdev->devlist_generation++;
- mutex_unlock(&rdev->devlist_mtx);
break;
default:
break;
@@ -2992,8 +2948,6 @@ static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
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)
@@ -3007,8 +2961,6 @@ static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
break;
}
- mutex_unlock(&rdev->devlist_mtx);
-
return ret;
}
@@ -3170,13 +3122,10 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
params.radar_required = true;
}
- mutex_lock(&rdev->devlist_mtx);
err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
params.chandef.chan,
CHAN_MODE_SHARED,
radar_detect_width);
- mutex_unlock(&rdev->devlist_mtx);
-
if (err)
return err;
@@ -3376,6 +3325,32 @@ static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
return true;
}
+static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
+ int id)
+{
+ void *attr;
+ int i = 0;
+
+ if (!mask)
+ return true;
+
+ attr = nla_nest_start(msg, id);
+ if (!attr)
+ return false;
+
+ for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
+ if (!(mask & BIT(i)))
+ continue;
+
+ if (nla_put_u8(msg, i, signal[i]))
+ return false;
+ }
+
+ nla_nest_end(msg, attr);
+
+ return true;
+}
+
static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
int flags,
struct cfg80211_registered_device *rdev,
@@ -3447,6 +3422,18 @@ static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
default:
break;
}
+ if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
+ if (!nl80211_put_signal(msg, sinfo->chains,
+ sinfo->chain_signal,
+ NL80211_STA_INFO_CHAIN_SIGNAL))
+ goto nla_put_failure;
+ }
+ if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
+ if (!nl80211_put_signal(msg, sinfo->chains,
+ sinfo->chain_signal_avg,
+ NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
+ goto nla_put_failure;
+ }
if (sinfo->filled & STATION_INFO_TX_BITRATE) {
if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
NL80211_STA_INFO_TX_BITRATE))
@@ -3834,6 +3821,8 @@ static int nl80211_set_station_tdls(struct genl_info *info,
struct station_parameters *params)
{
/* Dummy STA entry gets updated once the peer capabilities are known */
+ if (info->attrs[NL80211_ATTR_PEER_AID])
+ params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
params->ht_capa =
nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
@@ -3974,7 +3963,8 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
return -EINVAL;
- if (!info->attrs[NL80211_ATTR_STA_AID])
+ if (!info->attrs[NL80211_ATTR_STA_AID] &&
+ !info->attrs[NL80211_ATTR_PEER_AID])
return -EINVAL;
mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
@@ -3985,7 +3975,10 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
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 (info->attrs[NL80211_ATTR_STA_AID])
+ params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
+ else
+ params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
if (!params.aid || params.aid > IEEE80211_MAX_AID)
return -EINVAL;
@@ -4634,6 +4627,7 @@ static const struct nla_policy
[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
[NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
+ [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
[NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
[NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
.len = IEEE80211_MAX_DATA_LEN },
@@ -4819,6 +4813,13 @@ static int nl80211_parse_mesh_setup(struct genl_info *info,
if (setup->is_secure)
setup->user_mpm = true;
+ if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
+ if (!setup->user_mpm)
+ return -EINVAL;
+ setup->auth_id =
+ nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
+ }
+
return 0;
}
@@ -4861,18 +4862,13 @@ static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
void *hdr = NULL;
struct nlattr *nl_reg_rules;
unsigned int i;
- int err = -EINVAL;
-
- mutex_lock(&cfg80211_mutex);
if (!cfg80211_regdomain)
- goto out;
+ return -EINVAL;
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
- if (!msg) {
- err = -ENOBUFS;
- goto out;
- }
+ if (!msg)
+ return -ENOBUFS;
hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
NL80211_CMD_GET_REG);
@@ -4931,8 +4927,7 @@ static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
nla_nest_end(msg, nl_reg_rules);
genlmsg_end(msg, hdr);
- err = genlmsg_reply(msg, info);
- goto out;
+ return genlmsg_reply(msg, info);
nla_put_failure_rcu:
rcu_read_unlock();
@@ -4940,10 +4935,7 @@ nla_put_failure:
genlmsg_cancel(msg, hdr);
put_failure:
nlmsg_free(msg);
- err = -EMSGSIZE;
-out:
- mutex_unlock(&cfg80211_mutex);
- return err;
+ return -EMSGSIZE;
}
static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
@@ -5009,12 +5001,9 @@ static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
}
}
- mutex_lock(&cfg80211_mutex);
-
r = set_regdom(rd);
/* set_regdom took ownership */
rd = NULL;
- mutex_unlock(&cfg80211_mutex);
bad_reg:
kfree(rd);
@@ -5064,7 +5053,6 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
if (!rdev->ops->scan)
return -EOPNOTSUPP;
- mutex_lock(&rdev->sched_scan_mtx);
if (rdev->scan_req) {
err = -EBUSY;
goto unlock;
@@ -5250,7 +5238,6 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
}
unlock:
- mutex_unlock(&rdev->sched_scan_mtx);
return err;
}
@@ -5322,8 +5309,6 @@ static int nl80211_start_sched_scan(struct sk_buff *skb,
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;
@@ -5491,7 +5476,6 @@ static int nl80211_start_sched_scan(struct sk_buff *skb,
out_free:
kfree(request);
out:
- mutex_unlock(&rdev->sched_scan_mtx);
return err;
}
@@ -5499,17 +5483,12 @@ 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;
+ return __cfg80211_stop_sched_scan(rdev, false);
}
static int nl80211_start_radar_detection(struct sk_buff *skb,
@@ -5541,12 +5520,11 @@ static int nl80211_start_radar_detection(struct sk_buff *skb,
if (!rdev->ops->start_radar_detection)
return -EOPNOTSUPP;
- mutex_lock(&rdev->devlist_mtx);
err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
chandef.chan, CHAN_MODE_SHARED,
BIT(chandef.width));
if (err)
- goto err_locked;
+ return err;
err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef);
if (!err) {
@@ -5554,9 +5532,6 @@ static int nl80211_start_radar_detection(struct sk_buff *skb,
wdev->cac_started = true;
wdev->cac_start_time = jiffies;
}
-err_locked:
- mutex_unlock(&rdev->devlist_mtx);
-
return err;
}
@@ -5939,10 +5914,13 @@ static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
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,
- sae_data, sae_data_len);
+ wdev_lock(dev->ieee80211_ptr);
+ err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
+ ssid, ssid_len, ie, ie_len,
+ key.p.key, key.p.key_len, key.idx,
+ sae_data, sae_data_len);
+ wdev_unlock(dev->ieee80211_ptr);
+ return err;
}
static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
@@ -6109,9 +6087,12 @@ static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
}
err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
- if (!err)
+ if (!err) {
+ wdev_lock(dev->ieee80211_ptr);
err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
ssid, ssid_len, &req);
+ wdev_unlock(dev->ieee80211_ptr);
+ }
return err;
}
@@ -6121,7 +6102,7 @@ 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;
+ int ie_len = 0, err;
u16 reason_code;
bool local_state_change;
@@ -6156,8 +6137,11 @@ static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
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);
+ wdev_lock(dev->ieee80211_ptr);
+ err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
+ local_state_change);
+ wdev_unlock(dev->ieee80211_ptr);
+ return err;
}
static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
@@ -6165,7 +6149,7 @@ 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;
+ int ie_len = 0, err;
u16 reason_code;
bool local_state_change;
@@ -6200,8 +6184,11 @@ static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
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);
+ wdev_lock(dev->ieee80211_ptr);
+ err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
+ local_state_change);
+ wdev_unlock(dev->ieee80211_ptr);
+ return err;
}
static bool
@@ -6419,6 +6406,8 @@ static int nl80211_testmode_dump(struct sk_buff *skb,
void *data = NULL;
int data_len = 0;
+ rtnl_lock();
+
if (cb->args[0]) {
/*
* 0 is a valid index, but not valid for args[0],
@@ -6430,18 +6419,16 @@ static int nl80211_testmode_dump(struct sk_buff *skb,
nl80211_fam.attrbuf, nl80211_fam.maxattr,
nl80211_policy);
if (err)
- return err;
+ goto out_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);
+ err = PTR_ERR(rdev);
+ goto out_err;
}
phy_idx = rdev->wiphy_idx;
rdev = NULL;
- mutex_unlock(&cfg80211_mutex);
if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
cb->args[1] =
@@ -6453,14 +6440,11 @@ static int nl80211_testmode_dump(struct sk_buff *skb,
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;
+ err = -ENOENT;
+ goto out_err;
}
- cfg80211_lock_rdev(rdev);
- mutex_unlock(&cfg80211_mutex);
if (!rdev->ops->testmode_dump) {
err = -EOPNOTSUPP;
@@ -6501,7 +6485,7 @@ static int nl80211_testmode_dump(struct sk_buff *skb,
/* see above */
cb->args[0] = phy_idx + 1;
out_err:
- cfg80211_unlock_rdev(rdev);
+ rtnl_unlock();
return err;
}
@@ -6709,7 +6693,9 @@ static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
sizeof(connect.vht_capa));
}
- err = cfg80211_connect(rdev, dev, &connect, connkeys);
+ wdev_lock(dev->ieee80211_ptr);
+ err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
+ wdev_unlock(dev->ieee80211_ptr);
if (err)
kfree(connkeys);
return err;
@@ -6720,6 +6706,7 @@ static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
struct cfg80211_registered_device *rdev = info->user_ptr[0];
struct net_device *dev = info->user_ptr[1];
u16 reason;
+ int ret;
if (!info->attrs[NL80211_ATTR_REASON_CODE])
reason = WLAN_REASON_DEAUTH_LEAVING;
@@ -6733,7 +6720,10 @@ static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
return -EOPNOTSUPP;
- return cfg80211_disconnect(rdev, dev, reason, true);
+ wdev_lock(dev->ieee80211_ptr);
+ ret = cfg80211_disconnect(rdev, dev, reason, true);
+ wdev_unlock(dev->ieee80211_ptr);
+ return ret;
}
static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
@@ -7509,28 +7499,29 @@ static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
struct cfg80211_registered_device *rdev)
{
+ struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
struct nlattr *nl_pats, *nl_pat;
int i, pat_len;
- if (!rdev->wowlan->n_patterns)
+ if (!wowlan->n_patterns)
return 0;
nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
if (!nl_pats)
return -ENOBUFS;
- for (i = 0; i < rdev->wowlan->n_patterns; i++) {
+ for (i = 0; i < wowlan->n_patterns; i++) {
nl_pat = nla_nest_start(msg, i + 1);
if (!nl_pat)
return -ENOBUFS;
- pat_len = rdev->wowlan->patterns[i].pattern_len;
+ pat_len = wowlan->patterns[i].pattern_len;
if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
DIV_ROUND_UP(pat_len, 8),
- rdev->wowlan->patterns[i].mask) ||
+ wowlan->patterns[i].mask) ||
nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
- pat_len, rdev->wowlan->patterns[i].pattern) ||
+ pat_len, wowlan->patterns[i].pattern) ||
nla_put_u32(msg, NL80211_WOWLAN_PKTPAT_OFFSET,
- rdev->wowlan->patterns[i].pkt_offset))
+ wowlan->patterns[i].pkt_offset))
return -ENOBUFS;
nla_nest_end(msg, nl_pat);
}
@@ -7593,12 +7584,12 @@ static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
!rdev->wiphy.wowlan.tcp)
return -EOPNOTSUPP;
- if (rdev->wowlan && rdev->wowlan->tcp) {
+ if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
/* adjust size to have room for all the data */
- size += rdev->wowlan->tcp->tokens_size +
- rdev->wowlan->tcp->payload_len +
- rdev->wowlan->tcp->wake_len +
- rdev->wowlan->tcp->wake_len / 8;
+ size += rdev->wiphy.wowlan_config->tcp->tokens_size +
+ rdev->wiphy.wowlan_config->tcp->payload_len +
+ rdev->wiphy.wowlan_config->tcp->wake_len +
+ rdev->wiphy.wowlan_config->tcp->wake_len / 8;
}
msg = nlmsg_new(size, GFP_KERNEL);
@@ -7610,33 +7601,34 @@ static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
if (!hdr)
goto nla_put_failure;
- if (rdev->wowlan) {
+ if (rdev->wiphy.wowlan_config) {
struct nlattr *nl_wowlan;
nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
if (!nl_wowlan)
goto nla_put_failure;
- if ((rdev->wowlan->any &&
+ if ((rdev->wiphy.wowlan_config->any &&
nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
- (rdev->wowlan->disconnect &&
+ (rdev->wiphy.wowlan_config->disconnect &&
nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
- (rdev->wowlan->magic_pkt &&
+ (rdev->wiphy.wowlan_config->magic_pkt &&
nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
- (rdev->wowlan->gtk_rekey_failure &&
+ (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
- (rdev->wowlan->eap_identity_req &&
+ (rdev->wiphy.wowlan_config->eap_identity_req &&
nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
- (rdev->wowlan->four_way_handshake &&
+ (rdev->wiphy.wowlan_config->four_way_handshake &&
nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
- (rdev->wowlan->rfkill_release &&
+ (rdev->wiphy.wowlan_config->rfkill_release &&
nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
goto nla_put_failure;
if (nl80211_send_wowlan_patterns(msg, rdev))
goto nla_put_failure;
- if (nl80211_send_wowlan_tcp(msg, rdev->wowlan->tcp))
+ if (nl80211_send_wowlan_tcp(msg,
+ rdev->wiphy.wowlan_config->tcp))
goto nla_put_failure;
nla_nest_end(msg, nl_wowlan);
@@ -7803,7 +7795,7 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
struct cfg80211_wowlan *ntrig;
struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
int err, i;
- bool prev_enabled = rdev->wowlan;
+ bool prev_enabled = rdev->wiphy.wowlan_config;
if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
!rdev->wiphy.wowlan.tcp)
@@ -7811,7 +7803,7 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
cfg80211_rdev_free_wowlan(rdev);
- rdev->wowlan = NULL;
+ rdev->wiphy.wowlan_config = NULL;
goto set_wakeup;
}
@@ -7947,11 +7939,12 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
goto error;
}
cfg80211_rdev_free_wowlan(rdev);
- rdev->wowlan = ntrig;
+ rdev->wiphy.wowlan_config = ntrig;
set_wakeup:
- if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
- rdev_set_wakeup(rdev, rdev->wowlan);
+ if (rdev->ops->set_wakeup &&
+ prev_enabled != !!rdev->wiphy.wowlan_config)
+ rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
return 0;
error:
@@ -8136,9 +8129,7 @@ static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
if (wdev->p2p_started)
return 0;
- mutex_lock(&rdev->devlist_mtx);
err = cfg80211_can_add_interface(rdev, wdev->iftype);
- mutex_unlock(&rdev->devlist_mtx);
if (err)
return err;
@@ -8147,9 +8138,7 @@ static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
return err;
wdev->p2p_started = true;
- mutex_lock(&rdev->devlist_mtx);
rdev->opencount++;
- mutex_unlock(&rdev->devlist_mtx);
return 0;
}
@@ -8165,11 +8154,7 @@ static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
if (!rdev->ops->stop_p2p_device)
return -EOPNOTSUPP;
- mutex_lock(&rdev->devlist_mtx);
- mutex_lock(&rdev->sched_scan_mtx);
cfg80211_stop_p2p_device(rdev, wdev);
- mutex_unlock(&rdev->sched_scan_mtx);
- mutex_unlock(&rdev->devlist_mtx);
return 0;
}
@@ -8312,11 +8297,11 @@ static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
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);
+ ASSERT_RTNL();
+
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);
@@ -8327,7 +8312,6 @@ static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
if (!dev) {
- mutex_unlock(&cfg80211_mutex);
if (rtnl)
rtnl_unlock();
return -EINVAL;
@@ -8341,7 +8325,6 @@ static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
if (dev) {
if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
!netif_running(dev)) {
- mutex_unlock(&cfg80211_mutex);
if (rtnl)
rtnl_unlock();
return -ENETDOWN;
@@ -8350,17 +8333,12 @@ static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
dev_hold(dev);
} else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
if (!wdev->p2p_started) {
- mutex_unlock(&cfg80211_mutex);
if (rtnl)
rtnl_unlock();
return -ENETDOWN;
}
}
- cfg80211_lock_rdev(rdev);
-
- mutex_unlock(&cfg80211_mutex);
-
info->user_ptr[0] = rdev;
}
@@ -8370,8 +8348,6 @@ static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
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];
@@ -8393,7 +8369,8 @@ static struct genl_ops nl80211_ops[] = {
.dumpit = nl80211_dump_wiphy,
.policy = nl80211_policy,
/* can be retrieved by unprivileged users */
- .internal_flags = NL80211_FLAG_NEED_WIPHY,
+ .internal_flags = NL80211_FLAG_NEED_WIPHY |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_SET_WIPHY,
@@ -8408,7 +8385,8 @@ static struct genl_ops nl80211_ops[] = {
.dumpit = nl80211_dump_interface,
.policy = nl80211_policy,
/* can be retrieved by unprivileged users */
- .internal_flags = NL80211_FLAG_NEED_WDEV,
+ .internal_flags = NL80211_FLAG_NEED_WDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_SET_INTERFACE,
@@ -8567,6 +8545,7 @@ static struct genl_ops nl80211_ops[] = {
.cmd = NL80211_CMD_GET_REG,
.doit = nl80211_get_reg,
.policy = nl80211_policy,
+ .internal_flags = NL80211_FLAG_NEED_RTNL,
/* can be retrieved by unprivileged users */
},
{
@@ -8574,6 +8553,7 @@ static struct genl_ops nl80211_ops[] = {
.doit = nl80211_set_reg,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_REQ_SET_REG,
@@ -9029,8 +9009,6 @@ static int nl80211_add_scan_req(struct sk_buff *msg,
struct nlattr *nest;
int i;
- lockdep_assert_held(&rdev->sched_scan_mtx);
-
if (WARN_ON(!req))
return 0;
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index cc35fbaa4578..e1d6749234c6 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -81,7 +81,10 @@ static struct regulatory_request core_request_world = {
.country_ie_env = ENVIRON_ANY,
};
-/* Receipt of information from last regulatory request */
+/*
+ * Receipt of information from last regulatory request,
+ * protected by RTNL (and can be accessed with RCU protection)
+ */
static struct regulatory_request __rcu *last_request =
(void __rcu *)&core_request_world;
@@ -96,39 +99,25 @@ static struct device_type reg_device_type = {
* Central wireless core regulatory domains, we only need two,
* the current one and a world regulatory domain in case we have no
* information to give us an alpha2.
+ * (protected by RTNL, can be read under RCU)
*/
const struct ieee80211_regdomain __rcu *cfg80211_regdomain;
/*
- * Protects static reg.c components:
- * - cfg80211_regdomain (if not used with RCU)
- * - cfg80211_world_regdom
- * - last_request (if not used with RCU)
- * - reg_num_devs_support_basehint
- */
-static DEFINE_MUTEX(reg_mutex);
-
-/*
* Number of devices that registered to the core
* that support cellular base station regulatory hints
+ * (protected by RTNL)
*/
static int reg_num_devs_support_basehint;
-static inline void assert_reg_lock(void)
-{
- lockdep_assert_held(&reg_mutex);
-}
-
static const struct ieee80211_regdomain *get_cfg80211_regdom(void)
{
- return rcu_dereference_protected(cfg80211_regdomain,
- lockdep_is_held(&reg_mutex));
+ return rtnl_dereference(cfg80211_regdomain);
}
static const struct ieee80211_regdomain *get_wiphy_regdom(struct wiphy *wiphy)
{
- return rcu_dereference_protected(wiphy->regd,
- lockdep_is_held(&reg_mutex));
+ return rtnl_dereference(wiphy->regd);
}
static void rcu_free_regdom(const struct ieee80211_regdomain *r)
@@ -140,8 +129,7 @@ static void rcu_free_regdom(const struct ieee80211_regdomain *r)
static struct regulatory_request *get_last_request(void)
{
- return rcu_dereference_check(last_request,
- lockdep_is_held(&reg_mutex));
+ return rcu_dereference_rtnl(last_request);
}
/* Used to queue up regulatory hints */
@@ -200,6 +188,7 @@ static const struct ieee80211_regdomain world_regdom = {
}
};
+/* protected by RTNL */
static const struct ieee80211_regdomain *cfg80211_world_regdom =
&world_regdom;
@@ -215,7 +204,7 @@ static void reset_regdomains(bool full_reset,
const struct ieee80211_regdomain *r;
struct regulatory_request *lr;
- assert_reg_lock();
+ ASSERT_RTNL();
r = get_cfg80211_regdom();
@@ -377,7 +366,7 @@ static void reg_regdb_search(struct work_struct *work)
const struct ieee80211_regdomain *curdom, *regdom = NULL;
int i;
- mutex_lock(&cfg80211_mutex);
+ rtnl_lock();
mutex_lock(&reg_regdb_search_mutex);
while (!list_empty(&reg_regdb_search_list)) {
@@ -402,7 +391,7 @@ static void reg_regdb_search(struct work_struct *work)
if (!IS_ERR_OR_NULL(regdom))
set_regdom(regdom);
- mutex_unlock(&cfg80211_mutex);
+ rtnl_unlock();
}
static DECLARE_WORK(reg_regdb_work, reg_regdb_search);
@@ -936,13 +925,7 @@ static bool reg_request_cell_base(struct regulatory_request *request)
bool reg_last_request_cell_base(void)
{
- bool val;
-
- mutex_lock(&reg_mutex);
- val = reg_request_cell_base(get_last_request());
- mutex_unlock(&reg_mutex);
-
- return val;
+ return reg_request_cell_base(get_last_request());
}
#ifdef CONFIG_CFG80211_CERTIFICATION_ONUS
@@ -1225,7 +1208,7 @@ static void update_all_wiphy_regulatory(enum nl80211_reg_initiator initiator)
struct cfg80211_registered_device *rdev;
struct wiphy *wiphy;
- assert_cfg80211_lock();
+ ASSERT_RTNL();
list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
wiphy = &rdev->wiphy;
@@ -1444,8 +1427,6 @@ static void reg_set_request_processed(void)
* what it believes should be the current regulatory domain.
*
* Returns one of the different reg request treatment values.
- *
- * Caller must hold &reg_mutex
*/
static enum reg_request_treatment
__regulatory_hint(struct wiphy *wiphy,
@@ -1570,21 +1551,19 @@ static void reg_process_pending_hints(void)
{
struct regulatory_request *reg_request, *lr;
- mutex_lock(&cfg80211_mutex);
- mutex_lock(&reg_mutex);
lr = get_last_request();
/* When last_request->processed becomes true this will be rescheduled */
if (lr && !lr->processed) {
REG_DBG_PRINT("Pending regulatory request, waiting for it to be processed...\n");
- goto out;
+ return;
}
spin_lock(&reg_requests_lock);
if (list_empty(&reg_requests_list)) {
spin_unlock(&reg_requests_lock);
- goto out;
+ return;
}
reg_request = list_first_entry(&reg_requests_list,
@@ -1595,10 +1574,6 @@ static void reg_process_pending_hints(void)
spin_unlock(&reg_requests_lock);
reg_process_hint(reg_request, reg_request->initiator);
-
-out:
- mutex_unlock(&reg_mutex);
- mutex_unlock(&cfg80211_mutex);
}
/* Processes beacon hints -- this has nothing to do with country IEs */
@@ -1607,9 +1582,6 @@ static void reg_process_pending_beacon_hints(void)
struct cfg80211_registered_device *rdev;
struct reg_beacon *pending_beacon, *tmp;
- mutex_lock(&cfg80211_mutex);
- mutex_lock(&reg_mutex);
-
/* This goes through the _pending_ beacon list */
spin_lock_bh(&reg_pending_beacons_lock);
@@ -1626,14 +1598,14 @@ static void reg_process_pending_beacon_hints(void)
}
spin_unlock_bh(&reg_pending_beacons_lock);
- mutex_unlock(&reg_mutex);
- mutex_unlock(&cfg80211_mutex);
}
static void reg_todo(struct work_struct *work)
{
+ rtnl_lock();
reg_process_pending_hints();
reg_process_pending_beacon_hints();
+ rtnl_unlock();
}
static void queue_regulatory_request(struct regulatory_request *request)
@@ -1717,29 +1689,23 @@ int regulatory_hint(struct wiphy *wiphy, const char *alpha2)
}
EXPORT_SYMBOL(regulatory_hint);
-/*
- * We hold wdev_lock() here so we cannot hold cfg80211_mutex() and
- * therefore cannot iterate over the rdev list here.
- */
void regulatory_hint_11d(struct wiphy *wiphy, enum ieee80211_band band,
const u8 *country_ie, u8 country_ie_len)
{
char alpha2[2];
enum environment_cap env = ENVIRON_ANY;
- struct regulatory_request *request, *lr;
-
- mutex_lock(&reg_mutex);
- lr = get_last_request();
-
- if (unlikely(!lr))
- goto out;
+ struct regulatory_request *request = NULL, *lr;
/* IE len must be evenly divisible by 2 */
if (country_ie_len & 0x01)
- goto out;
+ return;
if (country_ie_len < IEEE80211_COUNTRY_IE_MIN_LEN)
- goto out;
+ return;
+
+ request = kzalloc(sizeof(*request), GFP_KERNEL);
+ if (!request)
+ return;
alpha2[0] = country_ie[0];
alpha2[1] = country_ie[1];
@@ -1749,19 +1715,21 @@ void regulatory_hint_11d(struct wiphy *wiphy, enum ieee80211_band band,
else if (country_ie[2] == 'O')
env = ENVIRON_OUTDOOR;
+ rcu_read_lock();
+ lr = get_last_request();
+
+ if (unlikely(!lr))
+ goto out;
+
/*
* We will run this only upon a successful connection on cfg80211.
* We leave conflict resolution to the workqueue, where can hold
- * cfg80211_mutex.
+ * the RTNL.
*/
if (lr->initiator == NL80211_REGDOM_SET_BY_COUNTRY_IE &&
lr->wiphy_idx != WIPHY_IDX_INVALID)
goto out;
- request = kzalloc(sizeof(struct regulatory_request), GFP_KERNEL);
- if (!request)
- goto out;
-
request->wiphy_idx = get_wiphy_idx(wiphy);
request->alpha2[0] = alpha2[0];
request->alpha2[1] = alpha2[1];
@@ -1769,8 +1737,10 @@ void regulatory_hint_11d(struct wiphy *wiphy, enum ieee80211_band band,
request->country_ie_env = env;
queue_regulatory_request(request);
+ request = NULL;
out:
- mutex_unlock(&reg_mutex);
+ kfree(request);
+ rcu_read_unlock();
}
static void restore_alpha2(char *alpha2, bool reset_user)
@@ -1858,8 +1828,7 @@ static void restore_regulatory_settings(bool reset_user)
LIST_HEAD(tmp_reg_req_list);
struct cfg80211_registered_device *rdev;
- mutex_lock(&cfg80211_mutex);
- mutex_lock(&reg_mutex);
+ ASSERT_RTNL();
reset_regdomains(true, &world_regdom);
restore_alpha2(alpha2, reset_user);
@@ -1914,9 +1883,6 @@ static void restore_regulatory_settings(bool reset_user)
list_splice_tail_init(&tmp_reg_req_list, &reg_requests_list);
spin_unlock(&reg_requests_lock);
- mutex_unlock(&reg_mutex);
- mutex_unlock(&cfg80211_mutex);
-
REG_DBG_PRINT("Kicking the queue\n");
schedule_work(&reg_work);
@@ -2231,7 +2197,6 @@ int set_regdom(const struct ieee80211_regdomain *rd)
struct regulatory_request *lr;
int r;
- mutex_lock(&reg_mutex);
lr = get_last_request();
/* Note that this doesn't update the wiphys, this is done below */
@@ -2241,14 +2206,12 @@ int set_regdom(const struct ieee80211_regdomain *rd)
reg_set_request_processed();
kfree(rd);
- goto out;
+ return r;
}
/* This would make this whole thing pointless */
- if (WARN_ON(!lr->intersect && rd != get_cfg80211_regdom())) {
- r = -EINVAL;
- goto out;
- }
+ if (WARN_ON(!lr->intersect && rd != get_cfg80211_regdom()))
+ return -EINVAL;
/* update all wiphys now with the new established regulatory domain */
update_all_wiphy_regulatory(lr->initiator);
@@ -2259,10 +2222,7 @@ int set_regdom(const struct ieee80211_regdomain *rd)
reg_set_request_processed();
- out:
- mutex_unlock(&reg_mutex);
-
- return r;
+ return 0;
}
int reg_device_uevent(struct device *dev, struct kobj_uevent_env *env)
@@ -2287,23 +2247,17 @@ int reg_device_uevent(struct device *dev, struct kobj_uevent_env *env)
void wiphy_regulatory_register(struct wiphy *wiphy)
{
- mutex_lock(&reg_mutex);
-
if (!reg_dev_ignore_cell_hint(wiphy))
reg_num_devs_support_basehint++;
wiphy_update_regulatory(wiphy, NL80211_REGDOM_SET_BY_CORE);
-
- mutex_unlock(&reg_mutex);
}
-/* Caller must hold cfg80211_mutex */
void wiphy_regulatory_deregister(struct wiphy *wiphy)
{
struct wiphy *request_wiphy = NULL;
struct regulatory_request *lr;
- mutex_lock(&reg_mutex);
lr = get_last_request();
if (!reg_dev_ignore_cell_hint(wiphy))
@@ -2316,12 +2270,10 @@ void wiphy_regulatory_deregister(struct wiphy *wiphy)
request_wiphy = wiphy_idx_to_wiphy(lr->wiphy_idx);
if (!request_wiphy || request_wiphy != wiphy)
- goto out;
+ return;
lr->wiphy_idx = WIPHY_IDX_INVALID;
lr->country_ie_env = ENVIRON_ANY;
-out:
- mutex_unlock(&reg_mutex);
}
static void reg_timeout_work(struct work_struct *work)
@@ -2385,9 +2337,9 @@ void regulatory_exit(void)
cancel_delayed_work_sync(&reg_timeout);
/* Lock to suppress warnings */
- mutex_lock(&reg_mutex);
+ rtnl_lock();
reset_regdomains(true, NULL);
- mutex_unlock(&reg_mutex);
+ rtnl_unlock();
dev_set_uevent_suppress(&reg_pdev->dev, true);
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index fd99ea495b7e..dd01b58fa78c 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -169,7 +169,7 @@ void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev, bool leak)
union iwreq_data wrqu;
#endif
- lockdep_assert_held(&rdev->sched_scan_mtx);
+ ASSERT_RTNL();
request = rdev->scan_req;
@@ -230,9 +230,9 @@ void __cfg80211_scan_done(struct work_struct *wk)
rdev = container_of(wk, struct cfg80211_registered_device,
scan_done_wk);
- mutex_lock(&rdev->sched_scan_mtx);
+ rtnl_lock();
___cfg80211_scan_done(rdev, false);
- mutex_unlock(&rdev->sched_scan_mtx);
+ rtnl_unlock();
}
void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted)
@@ -241,6 +241,7 @@ void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted)
WARN_ON(request != wiphy_to_dev(request->wiphy)->scan_req);
request->aborted = aborted;
+ request->notified = true;
queue_work(cfg80211_wq, &wiphy_to_dev(request->wiphy)->scan_done_wk);
}
EXPORT_SYMBOL(cfg80211_scan_done);
@@ -255,7 +256,7 @@ void __cfg80211_sched_scan_results(struct work_struct *wk)
request = rdev->sched_scan_req;
- mutex_lock(&rdev->sched_scan_mtx);
+ rtnl_lock();
/* we don't have sched_scan_req anymore if the scan is stopping */
if (request) {
@@ -270,7 +271,7 @@ void __cfg80211_sched_scan_results(struct work_struct *wk)
nl80211_send_sched_scan_results(rdev, request->dev);
}
- mutex_unlock(&rdev->sched_scan_mtx);
+ rtnl_unlock();
}
void cfg80211_sched_scan_results(struct wiphy *wiphy)
@@ -289,9 +290,9 @@ void cfg80211_sched_scan_stopped(struct wiphy *wiphy)
trace_cfg80211_sched_scan_stopped(wiphy);
- mutex_lock(&rdev->sched_scan_mtx);
+ rtnl_lock();
__cfg80211_stop_sched_scan(rdev, true);
- mutex_unlock(&rdev->sched_scan_mtx);
+ rtnl_unlock();
}
EXPORT_SYMBOL(cfg80211_sched_scan_stopped);
@@ -300,7 +301,7 @@ int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev,
{
struct net_device *dev;
- lockdep_assert_held(&rdev->sched_scan_mtx);
+ ASSERT_RTNL();
if (!rdev->sched_scan_req)
return -ENOENT;
@@ -1040,6 +1041,25 @@ void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *pub)
EXPORT_SYMBOL(cfg80211_unlink_bss);
#ifdef CONFIG_CFG80211_WEXT
+static struct cfg80211_registered_device *
+cfg80211_get_dev_from_ifindex(struct net *net, int ifindex)
+{
+ struct cfg80211_registered_device *rdev;
+ struct net_device *dev;
+
+ ASSERT_RTNL();
+
+ dev = dev_get_by_index(net, ifindex);
+ if (!dev)
+ return ERR_PTR(-ENODEV);
+ if (dev->ieee80211_ptr)
+ rdev = wiphy_to_dev(dev->ieee80211_ptr->wiphy);
+ else
+ rdev = ERR_PTR(-ENODEV);
+ dev_put(dev);
+ return rdev;
+}
+
int cfg80211_wext_siwscan(struct net_device *dev,
struct iw_request_info *info,
union iwreq_data *wrqu, char *extra)
@@ -1062,7 +1082,6 @@ int cfg80211_wext_siwscan(struct net_device *dev,
if (IS_ERR(rdev))
return PTR_ERR(rdev);
- mutex_lock(&rdev->sched_scan_mtx);
if (rdev->scan_req) {
err = -EBUSY;
goto out;
@@ -1169,9 +1188,7 @@ int cfg80211_wext_siwscan(struct net_device *dev,
dev_hold(dev);
}
out:
- mutex_unlock(&rdev->sched_scan_mtx);
kfree(creq);
- cfg80211_unlock_rdev(rdev);
return err;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_siwscan);
@@ -1470,10 +1487,8 @@ int cfg80211_wext_giwscan(struct net_device *dev,
if (IS_ERR(rdev))
return PTR_ERR(rdev);
- if (rdev->scan_req) {
- res = -EAGAIN;
- goto out;
- }
+ if (rdev->scan_req)
+ return -EAGAIN;
res = ieee80211_scan_results(rdev, info, extra, data->length);
data->length = 0;
@@ -1482,8 +1497,6 @@ int cfg80211_wext_giwscan(struct net_device *dev,
res = 0;
}
- out:
- cfg80211_unlock_rdev(rdev);
return res;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_giwscan);
diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index 3ed35c345cae..81be95f3be74 100644
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -43,35 +43,29 @@ static bool cfg80211_is_all_idle(void)
struct wireless_dev *wdev;
bool is_all_idle = true;
- mutex_lock(&cfg80211_mutex);
-
/*
* All devices must be idle as otherwise if you are actively
* scanning some new beacon hints could be learned and would
* count as new regulatory hints.
*/
list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
- cfg80211_lock_rdev(rdev);
list_for_each_entry(wdev, &rdev->wdev_list, list) {
wdev_lock(wdev);
if (wdev->sme_state != CFG80211_SME_IDLE)
is_all_idle = false;
wdev_unlock(wdev);
}
- cfg80211_unlock_rdev(rdev);
}
- mutex_unlock(&cfg80211_mutex);
-
return is_all_idle;
}
static void disconnect_work(struct work_struct *work)
{
- if (!cfg80211_is_all_idle())
- return;
-
- regulatory_hint_disconnect();
+ rtnl_lock();
+ if (cfg80211_is_all_idle())
+ regulatory_hint_disconnect();
+ rtnl_unlock();
}
static DECLARE_WORK(cfg80211_disconnect_work, disconnect_work);
@@ -85,7 +79,6 @@ static int cfg80211_conn_scan(struct wireless_dev *wdev)
ASSERT_RTNL();
ASSERT_RDEV_LOCK(rdev);
ASSERT_WDEV_LOCK(wdev);
- lockdep_assert_held(&rdev->sched_scan_mtx);
if (rdev->scan_req)
return -EBUSY;
@@ -176,13 +169,13 @@ static int cfg80211_conn_do_work(struct wireless_dev *wdev)
case CFG80211_CONN_AUTHENTICATE_NEXT:
BUG_ON(!rdev->ops->auth);
wdev->conn->state = CFG80211_CONN_AUTHENTICATING;
- return __cfg80211_mlme_auth(rdev, wdev->netdev,
- params->channel, params->auth_type,
- params->bssid,
- params->ssid, params->ssid_len,
- NULL, 0,
- params->key, params->key_len,
- params->key_idx, NULL, 0);
+ return cfg80211_mlme_auth(rdev, wdev->netdev,
+ params->channel, params->auth_type,
+ params->bssid,
+ params->ssid, params->ssid_len,
+ NULL, 0,
+ params->key, params->key_len,
+ params->key_idx, NULL, 0);
case CFG80211_CONN_ASSOCIATE_NEXT:
BUG_ON(!rdev->ops->assoc);
wdev->conn->state = CFG80211_CONN_ASSOCIATING;
@@ -198,19 +191,19 @@ static int cfg80211_conn_do_work(struct wireless_dev *wdev)
req.vht_capa = params->vht_capa;
req.vht_capa_mask = params->vht_capa_mask;
- err = __cfg80211_mlme_assoc(rdev, wdev->netdev, params->channel,
- params->bssid, params->ssid,
- params->ssid_len, &req);
+ err = cfg80211_mlme_assoc(rdev, wdev->netdev, params->channel,
+ params->bssid, params->ssid,
+ params->ssid_len, &req);
if (err)
- __cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid,
- NULL, 0,
- WLAN_REASON_DEAUTH_LEAVING,
- false);
+ cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid,
+ NULL, 0,
+ WLAN_REASON_DEAUTH_LEAVING,
+ false);
return err;
case CFG80211_CONN_DEAUTH_ASSOC_FAIL:
- __cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid,
- NULL, 0,
- WLAN_REASON_DEAUTH_LEAVING, false);
+ cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid,
+ NULL, 0,
+ WLAN_REASON_DEAUTH_LEAVING, false);
/* return an error so that we call __cfg80211_connect_result() */
return -EINVAL;
default:
@@ -226,9 +219,6 @@ void cfg80211_conn_work(struct work_struct *work)
u8 bssid_buf[ETH_ALEN], *bssid = NULL;
rtnl_lock();
- cfg80211_lock_rdev(rdev);
- mutex_lock(&rdev->devlist_mtx);
- mutex_lock(&rdev->sched_scan_mtx);
list_for_each_entry(wdev, &rdev->wdev_list, list) {
if (!wdev->netdev)
@@ -256,9 +246,6 @@ void cfg80211_conn_work(struct work_struct *work)
wdev_unlock(wdev);
}
- mutex_unlock(&rdev->sched_scan_mtx);
- mutex_unlock(&rdev->devlist_mtx);
- cfg80211_unlock_rdev(rdev);
rtnl_unlock();
}
@@ -773,11 +760,11 @@ void cfg80211_disconnected(struct net_device *dev, u16 reason,
}
EXPORT_SYMBOL(cfg80211_disconnected);
-int __cfg80211_connect(struct cfg80211_registered_device *rdev,
- struct net_device *dev,
- struct cfg80211_connect_params *connect,
- struct cfg80211_cached_keys *connkeys,
- const u8 *prev_bssid)
+int cfg80211_connect(struct cfg80211_registered_device *rdev,
+ struct net_device *dev,
+ struct cfg80211_connect_params *connect,
+ struct cfg80211_cached_keys *connkeys,
+ const u8 *prev_bssid)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_bss *bss = NULL;
@@ -924,27 +911,8 @@ int __cfg80211_connect(struct cfg80211_registered_device *rdev,
}
}
-int cfg80211_connect(struct cfg80211_registered_device *rdev,
- struct net_device *dev,
- struct cfg80211_connect_params *connect,
- struct cfg80211_cached_keys *connkeys)
-{
- int err;
-
- mutex_lock(&rdev->devlist_mtx);
- /* might request scan - scan_mtx -> wdev_mtx dependency */
- mutex_lock(&rdev->sched_scan_mtx);
- wdev_lock(dev->ieee80211_ptr);
- err = __cfg80211_connect(rdev, dev, connect, connkeys, NULL);
- wdev_unlock(dev->ieee80211_ptr);
- mutex_unlock(&rdev->sched_scan_mtx);
- mutex_unlock(&rdev->devlist_mtx);
-
- return err;
-}
-
-int __cfg80211_disconnect(struct cfg80211_registered_device *rdev,
- struct net_device *dev, u16 reason, bool wextev)
+int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
+ struct net_device *dev, u16 reason, bool wextev)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
int err;
@@ -979,7 +947,7 @@ int __cfg80211_disconnect(struct cfg80211_registered_device *rdev,
}
/* wdev->conn->params.bssid must be set if > SCANNING */
- err = __cfg80211_mlme_deauth(rdev, dev,
+ err = cfg80211_mlme_deauth(rdev, dev,
wdev->conn->params.bssid,
NULL, 0, reason, false);
if (err)
@@ -1001,19 +969,6 @@ int __cfg80211_disconnect(struct cfg80211_registered_device *rdev,
return 0;
}
-int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
- struct net_device *dev,
- u16 reason, bool wextev)
-{
- int err;
-
- wdev_lock(dev->ieee80211_ptr);
- err = __cfg80211_disconnect(rdev, dev, reason, wextev);
- wdev_unlock(dev->ieee80211_ptr);
-
- return err;
-}
-
void cfg80211_sme_disassoc(struct net_device *dev,
struct cfg80211_internal_bss *bss)
{
@@ -1036,6 +991,6 @@ void cfg80211_sme_disassoc(struct net_device *dev,
memcpy(bssid, bss->pub.bssid, ETH_ALEN);
- __cfg80211_mlme_deauth(rdev, dev, bssid, NULL, 0,
- WLAN_REASON_DEAUTH_LEAVING, false);
+ cfg80211_mlme_deauth(rdev, dev, bssid, NULL, 0,
+ WLAN_REASON_DEAUTH_LEAVING, false);
}
diff --git a/net/wireless/sysfs.c b/net/wireless/sysfs.c
index 8f28b9f798d8..360a42c6f694 100644
--- a/net/wireless/sysfs.c
+++ b/net/wireless/sysfs.c
@@ -91,6 +91,7 @@ static void cfg80211_leave_all(struct cfg80211_registered_device *rdev)
cfg80211_leave(rdev, wdev);
}
+#ifdef CONFIG_PM
static int wiphy_suspend(struct device *dev, pm_message_t state)
{
struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
@@ -100,10 +101,10 @@ static int wiphy_suspend(struct device *dev, pm_message_t state)
rtnl_lock();
if (rdev->wiphy.registered) {
- if (!rdev->wowlan)
+ if (!rdev->wiphy.wowlan_config)
cfg80211_leave_all(rdev);
if (rdev->ops->suspend)
- ret = rdev_suspend(rdev, rdev->wowlan);
+ ret = rdev_suspend(rdev, rdev->wiphy.wowlan_config);
if (ret == 1) {
/* Driver refuse to configure wowlan */
cfg80211_leave_all(rdev);
@@ -132,6 +133,7 @@ static int wiphy_resume(struct device *dev)
return ret;
}
+#endif
static const void *wiphy_namespace(struct device *d)
{
@@ -146,8 +148,10 @@ struct class ieee80211_class = {
.dev_release = wiphy_dev_release,
.dev_attrs = ieee80211_dev_attrs,
.dev_uevent = wiphy_uevent,
+#ifdef CONFIG_PM
.suspend = wiphy_suspend,
.resume = wiphy_resume,
+#endif
.ns_type = &net_ns_type_operations,
.namespace = wiphy_namespace,
};
diff --git a/net/wireless/trace.h b/net/wireless/trace.h
index 5755bc14abbd..23fafeae8a10 100644
--- a/net/wireless/trace.h
+++ b/net/wireless/trace.h
@@ -1911,12 +1911,12 @@ TRACE_EVENT(cfg80211_send_rx_assoc,
NETDEV_PR_ARG, MAC_PR_ARG(bssid), CHAN_PR_ARG)
);
-DEFINE_EVENT(netdev_evt_only, __cfg80211_send_deauth,
+DEFINE_EVENT(netdev_evt_only, cfg80211_send_deauth,
TP_PROTO(struct net_device *netdev),
TP_ARGS(netdev)
);
-DEFINE_EVENT(netdev_evt_only, __cfg80211_send_disassoc,
+DEFINE_EVENT(netdev_evt_only, cfg80211_send_disassoc,
TP_PROTO(struct net_device *netdev),
TP_ARGS(netdev)
);
diff --git a/net/wireless/util.c b/net/wireless/util.c
index f5ad4d94ba88..74458b7f61eb 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -33,6 +33,29 @@ ieee80211_get_response_rate(struct ieee80211_supported_band *sband,
}
EXPORT_SYMBOL(ieee80211_get_response_rate);
+u32 ieee80211_mandatory_rates(struct ieee80211_supported_band *sband)
+{
+ struct ieee80211_rate *bitrates;
+ u32 mandatory_rates = 0;
+ enum ieee80211_rate_flags mandatory_flag;
+ int i;
+
+ if (WARN_ON(!sband))
+ return 1;
+
+ if (sband->band == IEEE80211_BAND_2GHZ)
+ mandatory_flag = IEEE80211_RATE_MANDATORY_B;
+ else
+ mandatory_flag = IEEE80211_RATE_MANDATORY_A;
+
+ bitrates = sband->bitrates;
+ for (i = 0; i < sband->n_bitrates; i++)
+ if (bitrates[i].flags & mandatory_flag)
+ mandatory_rates |= BIT(i);
+ return mandatory_rates;
+}
+EXPORT_SYMBOL(ieee80211_mandatory_rates);
+
int ieee80211_channel_to_frequency(int chan, enum ieee80211_band band)
{
/* see 802.11 17.3.8.3.2 and Annex J
@@ -785,12 +808,8 @@ void cfg80211_process_rdev_events(struct cfg80211_registered_device *rdev)
ASSERT_RTNL();
ASSERT_RDEV_LOCK(rdev);
- mutex_lock(&rdev->devlist_mtx);
-
list_for_each_entry(wdev, &rdev->wdev_list, list)
cfg80211_process_wdev_events(wdev);
-
- mutex_unlock(&rdev->devlist_mtx);
}
int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
@@ -822,10 +841,8 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
return -EBUSY;
if (ntype != otype && netif_running(dev)) {
- mutex_lock(&rdev->devlist_mtx);
err = cfg80211_can_change_interface(rdev, dev->ieee80211_ptr,
ntype);
- mutex_unlock(&rdev->devlist_mtx);
if (err)
return err;
@@ -841,8 +858,10 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
break;
case NL80211_IFTYPE_STATION:
case NL80211_IFTYPE_P2P_CLIENT:
+ wdev_lock(dev->ieee80211_ptr);
cfg80211_disconnect(rdev, dev,
WLAN_REASON_DEAUTH_LEAVING, true);
+ wdev_unlock(dev->ieee80211_ptr);
break;
case NL80211_IFTYPE_MESH_POINT:
/* mesh should be handled? */
@@ -1169,6 +1188,9 @@ bool ieee80211_operating_class_to_band(u8 operating_class,
case 84:
*band = IEEE80211_BAND_2GHZ;
return true;
+ case 180:
+ *band = IEEE80211_BAND_60GHZ;
+ return true;
}
return false;
@@ -1184,8 +1206,6 @@ int cfg80211_validate_beacon_int(struct cfg80211_registered_device *rdev,
if (!beacon_int)
return -EINVAL;
- mutex_lock(&rdev->devlist_mtx);
-
list_for_each_entry(wdev, &rdev->wdev_list, list) {
if (!wdev->beacon_interval)
continue;
@@ -1195,8 +1215,6 @@ int cfg80211_validate_beacon_int(struct cfg80211_registered_device *rdev,
}
}
- mutex_unlock(&rdev->devlist_mtx);
-
return res;
}
@@ -1220,7 +1238,6 @@ int cfg80211_can_use_iftype_chan(struct cfg80211_registered_device *rdev,
int i, j;
ASSERT_RTNL();
- lockdep_assert_held(&rdev->devlist_mtx);
if (WARN_ON(hweight32(radar_detect) > 1))
return -EINVAL;
diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c
index d997d0f0c54a..e7c6e862580d 100644
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -72,7 +72,6 @@ int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
struct cfg80211_registered_device *rdev;
struct vif_params vifparams;
enum nl80211_iftype type;
- int ret;
rdev = wiphy_to_dev(wdev->wiphy);
@@ -98,11 +97,7 @@ int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
memset(&vifparams, 0, sizeof(vifparams));
- cfg80211_lock_rdev(rdev);
- ret = cfg80211_change_iface(rdev, dev, type, NULL, &vifparams);
- cfg80211_unlock_rdev(rdev);
-
- return ret;
+ return cfg80211_change_iface(rdev, dev, type, NULL, &vifparams);
}
EXPORT_SYMBOL_GPL(cfg80211_wext_siwmode);
@@ -579,13 +574,10 @@ static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
{
int err;
- /* devlist mutex needed for possible IBSS re-join */
- mutex_lock(&rdev->devlist_mtx);
wdev_lock(dev->ieee80211_ptr);
err = __cfg80211_set_encryption(rdev, dev, pairwise, addr,
remove, tx_key, idx, params);
wdev_unlock(dev->ieee80211_ptr);
- mutex_unlock(&rdev->devlist_mtx);
return err;
}
@@ -787,7 +779,7 @@ static int cfg80211_wext_siwfreq(struct net_device *dev,
struct cfg80211_chan_def chandef = {
.width = NL80211_CHAN_WIDTH_20_NOHT,
};
- int freq, err;
+ int freq;
switch (wdev->iftype) {
case NL80211_IFTYPE_STATION:
@@ -804,10 +796,7 @@ static int cfg80211_wext_siwfreq(struct net_device *dev,
chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq);
if (!chandef.chan)
return -EINVAL;
- mutex_lock(&rdev->devlist_mtx);
- err = cfg80211_set_monitor_channel(rdev, &chandef);
- mutex_unlock(&rdev->devlist_mtx);
- return err;
+ return cfg80211_set_monitor_channel(rdev, &chandef);
case NL80211_IFTYPE_MESH_POINT:
freq = cfg80211_wext_freq(wdev->wiphy, wextfreq);
if (freq < 0)
@@ -818,10 +807,7 @@ static int cfg80211_wext_siwfreq(struct net_device *dev,
chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq);
if (!chandef.chan)
return -EINVAL;
- mutex_lock(&rdev->devlist_mtx);
- err = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
- mutex_unlock(&rdev->devlist_mtx);
- return err;
+ return cfg80211_set_mesh_channel(rdev, wdev, &chandef);
default:
return -EOPNOTSUPP;
}
diff --git a/net/wireless/wext-sme.c b/net/wireless/wext-sme.c
index e79cb5c0655a..a53f8404f451 100644
--- a/net/wireless/wext-sme.c
+++ b/net/wireless/wext-sme.c
@@ -54,8 +54,8 @@ int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
if (wdev->wext.prev_bssid_valid)
prev_bssid = wdev->wext.prev_bssid;
- err = __cfg80211_connect(rdev, wdev->netdev,
- &wdev->wext.connect, ck, prev_bssid);
+ err = cfg80211_connect(rdev, wdev->netdev,
+ &wdev->wext.connect, ck, prev_bssid);
if (err)
kfree(ck);
@@ -87,9 +87,6 @@ int cfg80211_mgd_wext_siwfreq(struct net_device *dev,
return -EINVAL;
}
- cfg80211_lock_rdev(rdev);
- mutex_lock(&rdev->devlist_mtx);
- mutex_lock(&rdev->sched_scan_mtx);
wdev_lock(wdev);
if (wdev->sme_state != CFG80211_SME_IDLE) {
@@ -103,8 +100,8 @@ int cfg80211_mgd_wext_siwfreq(struct net_device *dev,
/* if SSID set, we'll try right again, avoid event */
if (wdev->wext.connect.ssid_len)
event = false;
- err = __cfg80211_disconnect(rdev, dev,
- WLAN_REASON_DEAUTH_LEAVING, event);
+ err = cfg80211_disconnect(rdev, dev,
+ WLAN_REASON_DEAUTH_LEAVING, event);
if (err)
goto out;
}
@@ -136,9 +133,6 @@ int cfg80211_mgd_wext_siwfreq(struct net_device *dev,
err = cfg80211_mgd_wext_connect(rdev, wdev);
out:
wdev_unlock(wdev);
- mutex_unlock(&rdev->sched_scan_mtx);
- mutex_unlock(&rdev->devlist_mtx);
- cfg80211_unlock_rdev(rdev);
return err;
}
@@ -190,9 +184,6 @@ int cfg80211_mgd_wext_siwessid(struct net_device *dev,
if (len > 0 && ssid[len - 1] == '\0')
len--;
- cfg80211_lock_rdev(rdev);
- mutex_lock(&rdev->devlist_mtx);
- mutex_lock(&rdev->sched_scan_mtx);
wdev_lock(wdev);
err = 0;
@@ -208,8 +199,8 @@ int cfg80211_mgd_wext_siwessid(struct net_device *dev,
/* if SSID set now, we'll try to connect, avoid event */
if (len)
event = false;
- err = __cfg80211_disconnect(rdev, dev,
- WLAN_REASON_DEAUTH_LEAVING, event);
+ err = cfg80211_disconnect(rdev, dev,
+ WLAN_REASON_DEAUTH_LEAVING, event);
if (err)
goto out;
}
@@ -226,9 +217,6 @@ int cfg80211_mgd_wext_siwessid(struct net_device *dev,
err = cfg80211_mgd_wext_connect(rdev, wdev);
out:
wdev_unlock(wdev);
- mutex_unlock(&rdev->sched_scan_mtx);
- mutex_unlock(&rdev->devlist_mtx);
- cfg80211_unlock_rdev(rdev);
return err;
}
@@ -287,9 +275,6 @@ int cfg80211_mgd_wext_siwap(struct net_device *dev,
if (is_zero_ether_addr(bssid) || is_broadcast_ether_addr(bssid))
bssid = NULL;
- cfg80211_lock_rdev(rdev);
- mutex_lock(&rdev->devlist_mtx);
- mutex_lock(&rdev->sched_scan_mtx);
wdev_lock(wdev);
if (wdev->sme_state != CFG80211_SME_IDLE) {
@@ -303,8 +288,8 @@ int cfg80211_mgd_wext_siwap(struct net_device *dev,
ether_addr_equal(bssid, wdev->wext.connect.bssid))
goto out;
- err = __cfg80211_disconnect(rdev, dev,
- WLAN_REASON_DEAUTH_LEAVING, false);
+ err = cfg80211_disconnect(rdev, dev,
+ WLAN_REASON_DEAUTH_LEAVING, false);
if (err)
goto out;
}
@@ -318,9 +303,6 @@ int cfg80211_mgd_wext_siwap(struct net_device *dev,
err = cfg80211_mgd_wext_connect(rdev, wdev);
out:
wdev_unlock(wdev);
- mutex_unlock(&rdev->sched_scan_mtx);
- mutex_unlock(&rdev->devlist_mtx);
- cfg80211_unlock_rdev(rdev);
return err;
}
@@ -383,8 +365,8 @@ int cfg80211_wext_siwgenie(struct net_device *dev,
wdev->wext.ie_len = ie_len;
if (wdev->sme_state != CFG80211_SME_IDLE) {
- err = __cfg80211_disconnect(rdev, dev,
- WLAN_REASON_DEAUTH_LEAVING, false);
+ err = cfg80211_disconnect(rdev, dev,
+ WLAN_REASON_DEAUTH_LEAVING, false);
if (err)
goto out;
}
@@ -420,8 +402,7 @@ int cfg80211_wext_siwmlme(struct net_device *dev,
switch (mlme->cmd) {
case IW_MLME_DEAUTH:
case IW_MLME_DISASSOC:
- err = __cfg80211_disconnect(rdev, dev, mlme->reason_code,
- true);
+ err = cfg80211_disconnect(rdev, dev, mlme->reason_code, true);
break;
default:
err = -EOPNOTSUPP;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.