diff options
Diffstat (limited to 'net')
-rw-r--r-- | net/mac80211/cfg.c | 12 | ||||
-rw-r--r-- | net/mac80211/ieee80211_i.h | 6 | ||||
-rw-r--r-- | net/mac80211/mlme.c | 25 | ||||
-rw-r--r-- | net/wireless/core.c | 92 | ||||
-rw-r--r-- | net/wireless/core.h | 100 | ||||
-rw-r--r-- | net/wireless/ibss.c | 133 | ||||
-rw-r--r-- | net/wireless/mlme.c | 214 | ||||
-rw-r--r-- | net/wireless/nl80211.c | 8 | ||||
-rw-r--r-- | net/wireless/nl80211.h | 2 | ||||
-rw-r--r-- | net/wireless/scan.c | 30 | ||||
-rw-r--r-- | net/wireless/sme.c | 252 | ||||
-rw-r--r-- | net/wireless/wext-sme.c | 125 |
12 files changed, 804 insertions, 195 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 7cfc14e4ca0..36f8f245fa4 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -1182,15 +1182,19 @@ static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, } static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, - struct cfg80211_deauth_request *req) + struct cfg80211_deauth_request *req, + void *cookie) { - return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); + return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), + req, cookie); } static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, - struct cfg80211_disassoc_request *req) + struct cfg80211_disassoc_request *req, + void *cookie) { - return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); + return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), + req, cookie); } static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 2e92bbd9b2d..327aabc07ab 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -918,9 +918,11 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, struct cfg80211_assoc_request *req); int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, - struct cfg80211_deauth_request *req); + struct cfg80211_deauth_request *req, + void *cookie); int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, - struct cfg80211_disassoc_request *req); + struct cfg80211_disassoc_request *req, + void *cookie); ieee80211_rx_result ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb); void ieee80211_send_pspoll(struct ieee80211_local *local, diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 15dbb57ab55..c9db9646025 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -386,7 +386,8 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata, static void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, - const u8 *bssid, u16 stype, u16 reason) + const u8 *bssid, u16 stype, u16 reason, + void *cookie) { struct ieee80211_local *local = sdata->local; struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; @@ -412,9 +413,9 @@ static void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, mgmt->u.deauth.reason_code = cpu_to_le16(reason); if (stype == IEEE80211_STYPE_DEAUTH) - cfg80211_send_deauth(sdata->dev, (u8 *) mgmt, skb->len); + cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, skb->len, cookie); else - cfg80211_send_disassoc(sdata->dev, (u8 *) mgmt, skb->len); + cfg80211_send_disassoc(sdata->dev, (u8 *)mgmt, skb->len, cookie); ieee80211_tx_skb(sdata, skb, ifmgd->flags & IEEE80211_STA_MFP_ENABLED); } @@ -1837,10 +1838,12 @@ static void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, /* no action */ break; case RX_MGMT_CFG80211_DEAUTH: - cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, skb->len); + cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, skb->len, + NULL); break; case RX_MGMT_CFG80211_DISASSOC: - cfg80211_send_disassoc(sdata->dev, (u8 *)mgmt, skb->len); + cfg80211_send_disassoc(sdata->dev, (u8 *)mgmt, skb->len, + NULL); break; default: WARN(1, "unexpected: %d", rma); @@ -2273,7 +2276,8 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, } int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, - struct cfg80211_deauth_request *req) + struct cfg80211_deauth_request *req, + void *cookie) { struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; struct ieee80211_mgd_work *wk; @@ -2305,13 +2309,15 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, mutex_unlock(&ifmgd->mtx); ieee80211_send_deauth_disassoc(sdata, bssid, - IEEE80211_STYPE_DEAUTH, req->reason_code); + IEEE80211_STYPE_DEAUTH, req->reason_code, + cookie); return 0; } int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, - struct cfg80211_disassoc_request *req) + struct cfg80211_disassoc_request *req, + void *cookie) { struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; @@ -2331,6 +2337,7 @@ int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, mutex_unlock(&ifmgd->mtx); ieee80211_send_deauth_disassoc(sdata, req->bss->bssid, - IEEE80211_STYPE_DISASSOC, req->reason_code); + IEEE80211_STYPE_DISASSOC, req->reason_code, + cookie); return 0; } diff --git a/net/wireless/core.c b/net/wireless/core.c index c6813beded0..9c73769440a 100644 --- a/net/wireless/core.c +++ b/net/wireless/core.c @@ -257,6 +257,71 @@ static void cfg80211_rfkill_sync_work(struct work_struct *work) cfg80211_rfkill_set_block(drv, rfkill_blocked(drv->rfkill)); } +static void cfg80211_process_events(struct wireless_dev *wdev) +{ + struct cfg80211_event *ev; + unsigned long flags; + + spin_lock_irqsave(&wdev->event_lock, flags); + while (!list_empty(&wdev->event_list)) { + ev = list_first_entry(&wdev->event_list, + struct cfg80211_event, list); + list_del(&ev->list); + spin_unlock_irqrestore(&wdev->event_lock, flags); + + wdev_lock(wdev); + switch (ev->type) { + case EVENT_CONNECT_RESULT: + __cfg80211_connect_result( + wdev->netdev, ev->cr.bssid, + ev->cr.req_ie, ev->cr.req_ie_len, + ev->cr.resp_ie, ev->cr.resp_ie_len, + ev->cr.status, + ev->cr.status == WLAN_STATUS_SUCCESS); + break; + case EVENT_ROAMED: + __cfg80211_roamed(wdev, ev->rm.bssid, + ev->rm.req_ie, ev->rm.req_ie_len, + ev->rm.resp_ie, ev->rm.resp_ie_len); + break; + case EVENT_DISCONNECTED: + __cfg80211_disconnected(wdev->netdev, + ev->dc.ie, ev->dc.ie_len, + ev->dc.reason, true); + break; + case EVENT_IBSS_JOINED: + __cfg80211_ibss_joined(wdev->netdev, ev->ij.bssid); + break; + } + wdev_unlock(wdev); + + kfree(ev); + + spin_lock_irqsave(&wdev->event_lock, flags); + } + spin_unlock_irqrestore(&wdev->event_lock, flags); +} + +static void cfg80211_event_work(struct work_struct *work) +{ + struct cfg80211_registered_device *rdev; + struct wireless_dev *wdev; + + rdev = container_of(work, struct cfg80211_registered_device, + event_work); + + rtnl_lock(); + cfg80211_lock_rdev(rdev); + mutex_lock(&rdev->devlist_mtx); + + list_for_each_entry(wdev, &rdev->netdev_list, list) + cfg80211_process_events(wdev); + + mutex_unlock(&rdev->devlist_mtx); + cfg80211_unlock_rdev(rdev); + rtnl_unlock(); +} + /* exported functions */ struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv) @@ -299,6 +364,7 @@ struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv) INIT_LIST_HEAD(&drv->netdev_list); spin_lock_init(&drv->bss_lock); INIT_LIST_HEAD(&drv->bss_list); + INIT_WORK(&drv->scan_done_wk, __cfg80211_scan_done); device_initialize(&drv->wiphy.dev); drv->wiphy.dev.class = &ieee80211_class; @@ -316,6 +382,7 @@ struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv) INIT_WORK(&drv->rfkill_sync, cfg80211_rfkill_sync_work); INIT_WORK(&drv->conn_work, cfg80211_conn_work); + INIT_WORK(&drv->event_work, cfg80211_event_work); /* * Initialize wiphy parameters to IEEE 802.11 MIB default values. @@ -477,6 +544,9 @@ void wiphy_unregister(struct wiphy *wiphy) mutex_unlock(&drv->mtx); cancel_work_sync(&drv->conn_work); + cancel_work_sync(&drv->scan_done_wk); + kfree(drv->scan_req); + flush_work(&drv->event_work); cfg80211_debugfs_drv_del(drv); @@ -535,6 +605,9 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb, switch (state) { case NETDEV_REGISTER: + mutex_init(&wdev->mtx); + INIT_LIST_HEAD(&wdev->event_list); + spin_lock_init(&wdev->event_lock); mutex_lock(&rdev->devlist_mtx); list_add(&wdev->list, &rdev->netdev_list); if (sysfs_create_link(&dev->dev.kobj, &rdev->wiphy.dev.kobj, @@ -566,15 +639,17 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb, cfg80211_leave_ibss(rdev, dev, true); break; case NL80211_IFTYPE_STATION: + wdev_lock(wdev); #ifdef CONFIG_WIRELESS_EXT kfree(wdev->wext.ie); wdev->wext.ie = NULL; 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); cfg80211_mlme_down(rdev, dev); + wdev_unlock(wdev); break; default: break; @@ -582,20 +657,24 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb, break; case NETDEV_UP: #ifdef CONFIG_WIRELESS_EXT + cfg80211_lock_rdev(rdev); + wdev_lock(wdev); switch (wdev->iftype) { case NL80211_IFTYPE_ADHOC: if (wdev->wext.ibss.ssid_len) - cfg80211_join_ibss(rdev, dev, - &wdev->wext.ibss); + __cfg80211_join_ibss(rdev, dev, + &wdev->wext.ibss); break; case NL80211_IFTYPE_STATION: if (wdev->wext.connect.ssid_len) - cfg80211_connect(rdev, dev, - &wdev->wext.connect); + __cfg80211_connect(rdev, dev, + &wdev->wext.connect); break; default: break; } + wdev_unlock(wdev); + cfg80211_unlock_rdev(rdev); #endif break; case NETDEV_UNREGISTER: @@ -605,6 +684,7 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb, list_del_init(&wdev->list); } mutex_unlock(&rdev->devlist_mtx); + mutex_destroy(&wdev->mtx); break; case NETDEV_PRE_UP: if (rfkill_blocked(rdev->rfkill)) diff --git a/net/wireless/core.h b/net/wireless/core.h index 92da612b3f9..5ccd642e183 100644 --- a/net/wireless/core.h +++ b/net/wireless/core.h @@ -57,12 +57,14 @@ struct cfg80211_registered_device { u32 bss_generation; struct cfg80211_scan_request *scan_req; /* protected by RTNL */ unsigned long suspend_at; + struct work_struct scan_done_wk; #ifdef CONFIG_NL80211_TESTMODE struct genl_info *testmode_info; #endif struct work_struct conn_work; + struct work_struct event_work; #ifdef CONFIG_CFG80211_DEBUGFS /* Debugfs entries */ @@ -170,12 +172,73 @@ struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx); extern struct cfg80211_registered_device * cfg80211_get_dev_from_ifindex(int ifindex); +static inline void cfg80211_lock_rdev(struct cfg80211_registered_device *drv) +{ + mutex_lock(&drv->mtx); +} + static inline void cfg80211_unlock_rdev(struct cfg80211_registered_device *drv) { BUG_ON(IS_ERR(drv) || !drv); mutex_unlock(&drv->mtx); } +static inline void wdev_lock(struct wireless_dev *wdev) + __acquires(wdev) +{ + mutex_lock(&wdev->mtx); + __acquire(wdev->mtx); +} + +static inline void wdev_unlock(struct wireless_dev *wdev) + __releases(wdev) +{ + __release(wdev->mtx); + mutex_unlock(&wdev->mtx); +} + +#define ASSERT_RDEV_LOCK(rdev) WARN_ON(!mutex_is_locked(&(rdev)->mtx)); +#define ASSERT_WDEV_LOCK(wdev) WARN_ON(!mutex_is_locked(&(wdev)->mtx)); + +enum cfg80211_event_type { + EVENT_CONNECT_RESULT, + EVENT_ROAMED, + EVENT_DISCONNECTED, + EVENT_IBSS_JOINED, +}; + +struct cfg80211_event { + struct list_head list; + enum cfg80211_event_type type; + + union { + struct { + u8 bssid[ETH_ALEN]; + const u8 *req_ie; + const u8 *resp_ie; + size_t req_ie_len; + size_t resp_ie_len; + u16 status; + } cr; + struct { + u8 bssid[ETH_ALEN]; + const u8 *req_ie; + const u8 *resp_ie; + size_t req_ie_len; + size_t resp_ie_len; + } rm; + struct { + const u8 *ie; + size_t ie_len; + u16 reason; + } dc; + struct { + u8 bssid[ETH_ALEN]; + } ij; + }; +}; + + /* free object */ extern void cfg80211_dev_free(struct cfg80211_registered_device *drv); @@ -191,25 +254,46 @@ void cfg80211_bss_age(struct cfg80211_registered_device *dev, unsigned long age_secs); /* IBSS */ +int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev, + struct net_device *dev, + struct cfg80211_ibss_params *params); int cfg80211_join_ibss(struct cfg80211_registered_device *rdev, struct net_device *dev, struct cfg80211_ibss_params *params); void cfg80211_clear_ibss(struct net_device *dev, bool nowext); int cfg80211_leave_ibss(struct cfg80211_registered_device *rdev, struct net_device *dev, bool nowext); +void __cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid); /* 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); 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); +int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev, + struct net_device *dev, + struct ieee80211_channel *chan, + const u8 *bssid, const u8 *prev_bssid, + const u8 *ssid, int ssid_len, + const u8 *ie, int ie_len, bool use_mfp, + struct cfg80211_crypto_settings *crypt); int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev, struct net_device *dev, struct ieee80211_channel *chan, const u8 *bssid, const u8 *prev_bssid, const u8 *ssid, int ssid_len, const u8 *ie, int ie_len, bool use_mfp, struct cfg80211_crypto_settings *crypt); +int __cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev, + struct net_device *dev, const u8 *bssid, + const u8 *ie, int ie_len, u16 reason); int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev, struct net_device *dev, const u8 *bssid, const u8 *ie, int ie_len, u16 reason); @@ -218,24 +302,38 @@ int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev, const u8 *ie, int ie_len, u16 reason); void cfg80211_mlme_down(struct cfg80211_registered_device *rdev, struct net_device *dev); +void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid, + const u8 *req_ie, size_t req_ie_len, + const u8 *resp_ie, size_t resp_ie_len, + u16 status, bool wextev); /* SME */ +int __cfg80211_connect(struct cfg80211_registered_device *rdev, + struct net_device *dev, + struct cfg80211_connect_params *connect); int cfg80211_connect(struct cfg80211_registered_device *rdev, struct net_device *dev, struct cfg80211_connect_params *connect); +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); +void __cfg80211_roamed(struct wireless_dev *wdev, const u8 *bssid, + const u8 *req_ie, size_t req_ie_len, + const u8 *resp_ie, size_t resp_ie_len); void cfg80211_conn_work(struct work_struct *work); /* internal helpers */ int cfg80211_validate_key_settings(struct key_params *params, int key_idx, const u8 *mac_addr); -void __cfg80211_disconnected(struct net_device *dev, gfp_t gfp, u8 *ie, +void __cfg80211_disconnected(struct net_device *dev, const u8 *ie, size_t ie_len, u16 reason, bool from_ap); void cfg80211_sme_scan_done(struct net_device *dev); void cfg80211_sme_rx_auth(struct net_device *dev, const u8 *buf, size_t len); void cfg80211_sme_disassoc(struct net_device *dev, int idx); +void __cfg80211_scan_done(struct work_struct *wk); #endif /* __NET_WIRELESS_CORE_H */ diff --git a/net/wireless/ibss.c b/net/wireless/ibss.c index a5330c5a547..99ef9364b7e 100644 --- a/net/wireless/ibss.c +++ b/net/wireless/ibss.c @@ -10,7 +10,7 @@ #include "nl80211.h" -void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp) +void __cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid) { struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_bss *bss; @@ -39,22 +39,45 @@ void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp) cfg80211_hold_bss(bss_from_pub(bss)); wdev->current_bss = bss_from_pub(bss); - nl80211_send_ibss_bssid(wiphy_to_dev(wdev->wiphy), dev, bssid, gfp); + nl80211_send_ibss_bssid(wiphy_to_dev(wdev->wiphy), dev, bssid, + GFP_KERNEL); #ifdef CONFIG_WIRELESS_EXT memset(&wrqu, 0, sizeof(wrqu)); memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN); wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); #endif } + +void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp) +{ + struct wireless_dev *wdev = dev->ieee80211_ptr; + struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); + struct cfg80211_event *ev; + unsigned long flags; + + ev = kzalloc(sizeof(*ev), gfp); + if (!ev) + return; + + ev->type = EVENT_IBSS_JOINED; + memcpy(ev->cr.bssid, bssid, ETH_ALEN); + + spin_lock_irqsave(&wdev->event_lock, flags); + list_add_tail(&ev->list, &wdev->event_list); + spin_unlock_irqrestore(&wdev->event_lock, flags); + schedule_work(&rdev->event_work); +} EXPORT_SYMBOL(cfg80211_ibss_joined); -int cfg80211_join_ibss(struct cfg80211_registered_device *rdev, - struct net_device *dev, - struct cfg80211_ibss_params *params) +int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev, + struct net_device *dev, + struct cfg80211_ibss_params *params) { struct wireless_dev *wdev = dev->ieee80211_ptr; int err; + ASSERT_WDEV_LOCK(wdev); + if (wdev->ssid_len) return -EALREADY; @@ -72,10 +95,26 @@ int cfg80211_join_ibss(struct cfg80211_registered_device *rdev, return 0; } -void cfg80211_clear_ibss(struct net_device *dev, bool nowext) +int cfg80211_join_ibss(struct cfg80211_registered_device *rdev, + struct net_device *dev, + struct cfg80211_ibss_params *params) +{ + struct wireless_dev *wdev = dev->ieee80211_ptr; + int err; + + wdev_lock(wdev); + err = __cfg80211_join_ibss(rdev, dev, params); + wdev_unlock(wdev); + + return err; +} + +static void __cfg80211_clear_ibss(struct net_device *dev, bool nowext) { struct wireless_dev *wdev = dev->ieee80211_ptr; + ASSERT_WDEV_LOCK(wdev); + if (wdev->current_bss) { cfg80211_unhold_bss(wdev->current_bss); cfg80211_put_bss(&wdev->current_bss->pub); @@ -89,12 +128,23 @@ void cfg80211_clear_ibss(struct net_device *dev, bool nowext) #endif } -int cfg80211_leave_ibss(struct cfg80211_registered_device *rdev, - struct net_device *dev, bool nowext) +void cfg80211_clear_ibss(struct net_device *dev, bool nowext) +{ + struct wireless_dev *wdev = dev->ieee80211_ptr; + + wdev_lock(wdev); + __cfg80211_clear_ibss(dev, nowext); + wdev_unlock(wdev); +} + +static int __cfg80211_leave_ibss(struct cfg80211_registered_device *rdev, + struct net_device *dev, bool nowext) { struct wireless_dev *wdev = dev->ieee80211_ptr; int err; + ASSERT_WDEV_LOCK(wdev); + if (!wdev->ssid_len) return -ENOLINK; @@ -103,11 +153,24 @@ int cfg80211_leave_ibss(struct cfg80211_registered_device *rdev, if (err) return err; - cfg80211_clear_ibss(dev, nowext); + __cfg80211_clear_ibss(dev, nowext); return 0; } +int cfg80211_leave_ibss(struct cfg80211_registered_device *rdev, + struct net_device *dev, bool nowext) +{ + struct wireless_dev *wdev = dev->ieee80211_ptr; + int err; + + wdev_lock(wdev); + err = __cfg80211_leave_ibss(rdev, dev, nowext); + wdev_unlock(wdev); + + return err; +} + #ifdef CONFIG_WIRELESS_EXT static int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev, struct wireless_dev *wdev) @@ -184,12 +247,15 @@ int cfg80211_ibss_wext_siwfreq(struct net_device *dev, if (wdev->wext.ibss.channel == chan) return 0; - if (wdev->ssid_len) { - err = cfg80211_leave_ibss(wiphy_to_dev(wdev->wiphy), - dev, true); - if (err) - return err; - } + wdev_lock(wdev); + err = 0; + if (wdev->ssid_len) + err = __cfg80211_leave_ibss(wiphy_to_dev(wdev->wiphy), + dev, true); + wdev_unlock(wdev); + + if (err) + return err; if (chan) { wdev->wext.ibss.channel = chan; @@ -215,10 +281,12 @@ int cfg80211_ibss_wext_giwfreq(struct net_device *dev, if (WARN_ON(wdev->iftype != NL80211_IFTYPE_ADHOC)) return -EINVAL; + wdev_lock(wdev); if (wdev->current_bss) chan = wdev->current_bss->pub.channel; else if (wdev->wext.ibss.channel) chan = wdev->wext.ibss.channel; + wdev_unlock(wdev); if (chan) { freq->m = chan->center_freq; @@ -247,12 +315,15 @@ int cfg80211_ibss_wext_siwessid(struct net_device *dev, if (!wiphy_to_dev(wdev->wiphy)->ops->join_ibss) return -EOPNOTSUPP; - if (wdev->ssid_len) { - err = cfg80211_leave_ibss(wiphy_to_dev(wdev->wiphy), - dev, true); - if (err) - return err; - } + wdev_lock(wdev); + err = 0; + if (wdev->ssid_len) + err = __cfg80211_leave_ibss(wiphy_to_dev(wdev->wiphy), + dev, true); + wdev_unlock(wdev); + + if (err) + return err; /* iwconfig uses nul termination in SSID.. */ if (len > 0 && ssid[len - 1] == '\0') @@ -279,6 +350,7 @@ int cfg80211_ibss_wext_giwessid(struct net_device *dev, data->flags = 0; + wdev_lock(wdev); if (wdev->ssid_len) { data->flags = 1; data->length = wdev->ssid_len; @@ -288,6 +360,7 @@ int cfg80211_ibss_wext_giwessid(struct net_device *dev, data->length = wdev->wext.ibss.ssid_len; memcpy(ssid, wdev->wext.ibss.ssid, data->length); } + wdev_unlock(wdev); return 0; } @@ -325,12 +398,15 @@ int cfg80211_ibss_wext_siwap(struct net_device *dev, compare_ether_addr(bssid, wdev->wext.ibss.bssid) == 0) return 0; - if (wdev->ssid_len) { - err = cfg80211_leave_ibss(wiphy_to_dev(wdev->wiphy), - dev, true); - if (err) - return err; - } + wdev_lock(wdev); + err = 0; + if (wdev->ssid_len) + err = __cfg80211_leave_ibss(wiphy_to_dev(wdev->wiphy), + dev, true); + wdev_unlock(wdev); + + if (err) + return err; if (bssid) { memcpy(wdev->wext.bssid, bssid, ETH_ALEN); @@ -355,10 +431,13 @@ int cfg80211_ibss_wext_giwap(struct net_device *dev, ap_addr->sa_family = ARPHRD_ETHER; + wdev_lock(wdev); if (wdev->current_bss) memcpy(ap_addr->sa_data, wdev->current_bss->pub.bssid, ETH_ALEN); else memcpy(ap_addr->sa_data, wdev->wext.ibss.bssid, ETH_ALEN); + wdev_unlock(wdev); + return 0; } /* temporary symbol - mark GPL - in the future the handler won't be */ diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c index 960bf60e44e..1b2ca1fea7a 100644 --- a/net/wireless/mlme.c +++ b/net/wireless/mlme.c @@ -23,7 +23,7 @@ void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len) u16 status = le16_to_cpu(mgmt->u.auth.status_code); bool done = false; - might_sleep(); + wdev_lock(wdev); for (i = 0; i < MAX_AUTH_BSSES; i++) { if (wdev->authtry_bsses[i] && @@ -45,6 +45,8 @@ void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len) 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); @@ -59,14 +61,15 @@ void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len) int i, ieoffs = offsetof(struct ieee80211_mgmt, u.assoc_resp.variable); bool done; - might_sleep(); + wdev_lock(wdev); status_code = le16_to_cpu(mgmt->u.assoc_resp.status_code); nl80211_send_rx_assoc(rdev, dev, buf, len, GFP_KERNEL); - cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, ie, len - ieoffs, - status_code, GFP_KERNEL); + __cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, ie, len - ieoffs, + status_code, + status_code == WLAN_STATUS_SUCCESS); if (status_code == WLAN_STATUS_SUCCESS) { for (i = 0; wdev->current_bss && i < MAX_AUTH_BSSES; i++) { @@ -81,10 +84,13 @@ void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len) WARN_ON(!done); } + + wdev_unlock(wdev); } EXPORT_SYMBOL(cfg80211_send_rx_assoc); -void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len) +static 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; @@ -94,7 +100,7 @@ void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len) int i; bool done = false; - might_sleep(); + ASSERT_WDEV_LOCK(wdev); nl80211_send_deauth(rdev, dev, buf, len, GFP_KERNEL); @@ -132,17 +138,35 @@ void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len) reason_code = le16_to_cpu(mgmt->u.deauth.reason_code); from_ap = memcmp(mgmt->da, dev->dev_addr, ETH_ALEN) == 0; - __cfg80211_disconnected(dev, GFP_KERNEL, NULL, 0, - reason_code, from_ap); + __cfg80211_disconnected(dev, NULL, 0, reason_code, from_ap); } else if (wdev->sme_state == CFG80211_SME_CONNECTING) { - cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, NULL, 0, - WLAN_STATUS_UNSPECIFIED_FAILURE, - GFP_KERNEL); + __cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, NULL, 0, + WLAN_STATUS_UNSPECIFIED_FAILURE, + false); + } +} + + +void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len, + void *cookie) +{ + struct wireless_dev *wdev = dev->ieee80211_ptr; + + BUG_ON(cookie && wdev != cookie); + + if (cookie) { + /* called within callback */ + __cfg80211_send_deauth(dev, buf, len); + } else { + 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) +static 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; @@ -154,12 +178,12 @@ void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len) bool from_ap; bool done = false; - might_sleep(); + wdev_lock(wdev); nl80211_send_disassoc(rdev, dev, buf, len, GFP_KERNEL); if (!wdev->sme_state == CFG80211_SME_CONNECTED) - return; + goto out; if (wdev->current_bss && memcmp(wdev->current_bss, bssid, ETH_ALEN) == 0) { @@ -180,8 +204,26 @@ void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len) reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code); from_ap = memcmp(mgmt->da, dev->dev_addr, ETH_ALEN) == 0; - __cfg80211_disconnected(dev, GFP_KERNEL, NULL, 0, - reason_code, from_ap); + __cfg80211_disconnected(dev, NULL, 0, reason_code, from_ap); + out: + wdev_unlock(wdev); +} + +void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len, + void *cookie) +{ + struct wireless_dev *wdev = dev->ieee80211_ptr; + + BUG_ON(cookie && wdev != cookie); + + if (cookie) { + /* called within callback */ + __cfg80211_send_disassoc(dev, buf, len); + } else { + wdev_lock(wdev); + __cfg80211_send_disassoc(dev, buf, len); + wdev_unlock(wdev); + } } EXPORT_SYMBOL(cfg80211_send_disassoc); @@ -193,13 +235,13 @@ void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr) int i; bool done = false; - might_sleep(); + 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, - GFP_KERNEL); + __cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0, + WLAN_STATUS_UNSPECIFIED_FAILURE, + false); for (i = 0; addr && i < MAX_AUTH_BSSES; i++) { if (wdev->authtry_bsses[i] && @@ -214,6 +256,8 @@ void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr) } WARN_ON(!done); + + wdev_unlock(wdev); } EXPORT_SYMBOL(cfg80211_send_auth_timeout); @@ -225,13 +269,13 @@ void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr) int i; bool done = false; - might_sleep(); + 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, - GFP_KERNEL); + __cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0, + WLAN_STATUS_UNSPECIFIED_FAILURE, + false); for (i = 0; addr && i < MAX_AUTH_BSSES; i++) { if (wdev->auth_bsses[i] && @@ -246,6 +290,8 @@ void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr) } WARN_ON(!done); + + wdev_unlock(wdev); } EXPORT_SYMBOL(cfg80211_send_assoc_timeout); @@ -276,17 +322,21 @@ 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) +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) { struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_auth_request req; struct cfg80211_internal_bss *bss; int i, err, slot = -1, nfree = 0; + ASSERT_WDEV_LOCK(wdev); + if (wdev->current_bss && memcmp(bssid, wdev->current_bss->pub.bssid, ETH_ALEN) == 0) return -EALREADY; @@ -342,18 +392,37 @@ int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev, return err; } -int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev, - struct net_device *dev, struct ieee80211_channel *chan, - const u8 *bssid, const u8 *prev_bssid, - const u8 *ssid, int ssid_len, - const u8 *ie, int ie_len, bool use_mfp, - struct cfg80211_crypto_settings *crypt) +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) +{ + int err; + + wdev_lock(dev->ieee80211_ptr); + err = __cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid, + ssid, ssid_len, ie, ie_len); + wdev_unlock(dev->ieee80211_ptr); + + return err; +} + +int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev, + struct net_device *dev, + struct ieee80211_channel *chan, + const u8 *bssid, const u8 *prev_bssid, + const u8 *ssid, int ssid_len, + const u8 *ie, int ie_len, bool use_mfp, + struct cfg80211_crypto_settings *crypt) { struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_assoc_request req; struct cfg80211_internal_bss *bss; int i, err, slot = -1; + ASSERT_WDEV_LOCK(wdev); + memset(&req, 0, sizeof(req)); if (wdev->current_bss) @@ -390,14 +459,35 @@ int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev, 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) +int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev, + struct net_device *dev, + struct ieee80211_channel *chan, + const u8 *bssid, const u8 *prev_bssid, + const u8 *ssid, int ssid_len, + const u8 *ie, int ie_len, bool use_mfp, + struct cfg80211_crypto_settings *crypt) +{ + struct wireless_dev *wdev = dev->ieee80211_ptr; + int err; + + wdev_lock(wdev); + err = __cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid, + ssid, ssid_len, ie, ie_len, use_mfp, crypt); + wdev_unlock(wdev); + + 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) { struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_deauth_request req; int i; + ASSERT_WDEV_LOCK(wdev); + memset(&req, 0, sizeof(req)); req.reason_code = reason; req.ie = ie; @@ -421,16 +511,32 @@ int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev, if (!req.bss) return -ENOTCONN; - return rdev->ops->deauth(&rdev->wiphy, dev, &req); + return rdev->ops->deauth(&rdev->wiphy, dev, &req, wdev); } -int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev, - struct net_device *dev, const u8 *bssid, - const u8 *ie, int ie_len, u16 reason) +int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev, + struct net_device *dev, const u8 *bssid, + const u8 *ie, int ie_len, u16 reason) +{ + struct wireless_dev *wdev = dev->ieee80211_ptr; + int err; + + wdev_lock(wdev); + err = __cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason); + 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) { struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_disassoc_request req; + ASSERT_WDEV_LOCK(wdev); + memset(&req, 0, sizeof(req)); req.reason_code = reason; req.ie = ie; @@ -440,7 +546,21 @@ int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev, else return -ENOTCONN; - return rdev->ops->disassoc(&rdev->wiphy, dev, &req); + return rdev->ops->disassoc(&rdev->wiphy, dev, &req, wdev); +} + +int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev, + struct net_device *dev, const u8 *bssid, + const u8 *ie, int ie_len, u16 reason) +{ + struct wireless_dev *wdev = dev->ieee80211_ptr; + int err; + + wdev_lock(wdev); + err = __cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason); + wdev_unlock(wdev); + + return err; } void cfg80211_mlme_down(struct cfg80211_registered_device *rdev, @@ -450,6 +570,8 @@ void cfg80211_mlme_down(struct cfg80211_registered_device *rdev, struct cfg80211_deauth_request req; int i; + ASSERT_WDEV_LOCK(wdev); + if (!rdev->ops->deauth) return; @@ -460,7 +582,7 @@ void cfg80211_mlme_down(struct cfg80211_registered_device *rdev, if (wdev->current_bss) { req.bss = &wdev->current_bss->pub; - rdev->ops->deauth(&rdev->wiphy, dev, &req); + rdev->ops->deauth(&rdev->wiphy, dev, &req, wdev); if (wdev->current_bss) { cfg80211_unhold_bss(wdev->current_bss); cfg80211_put_bss(&wdev->current_bss->pub); @@ -471,7 +593,7 @@ void cfg80211_mlme_down(struct cfg80211_registered_device *rdev, for (i = 0; i < MAX_AUTH_BSSES; i++) { if (wdev->auth_bsses[i]) { req.bss = &wdev->auth_bsses[i]->pub; - rdev->ops->deauth(&rdev->wiphy, dev, &req); + rdev->ops->deauth(&rdev->wiphy, dev, &req, wdev); if (wdev->auth_bsses[i]) { cfg80211_unhold_bss(wdev->auth_bsses[i]); cfg80211_put_bss(&wdev->auth_bsses[i]->pub); @@ -480,7 +602,7 @@ void cfg80211_mlme_down(struct cfg80211_registered_device *rdev, } if (wdev->authtry_bsses[i]) { req.bss = &wdev->authtry_bsses[i]->pub; - rdev->ops->deauth(&rdev->wiphy, dev, &req); + rdev->ops->deauth(&rdev->wiphy, dev, &req, wdev); if (wdev->authtry_bsses[i]) { cfg80211_unhold_bss(wdev->authtry_bsses[i]); cfg80211_put_bss(&wdev->authtry_bsses[i]->pub); diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 4976eac888a..cf4ac786b20 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -4029,6 +4029,8 @@ static int nl80211_add_scan_req(struct sk_buff *msg, struct nlattr *nest; int i; + ASSERT_RDEV_LOCK(rdev); + if (WARN_ON(!req)) return 0; @@ -4391,12 +4393,12 @@ void nl80211_send_roamed(struct cfg80211_registered_device *rdev, void nl80211_send_disconnected(struct cfg80211_registered_device *rdev, struct net_device *netdev, u16 reason, - u8 *ie, size_t ie_len, bool from_ap, gfp_t gfp) + const u8 *ie, size_t ie_len, bool from_ap) { struct sk_buff *msg; void *hdr; - msg = nlmsg_new(NLMSG_GOODSIZE, gfp); + msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); if (!msg) return; @@ -4420,7 +4422,7 @@ void nl80211_send_disconnected(struct cfg80211_registered_device *rdev, return; } - genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp); + genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, GFP_KERNEL); return; nla_put_failure: diff --git a/net/wireless/nl80211.h b/net/wireless/nl80211.h index cf3708b48c2..44cc2a76a1b 100644 --- a/net/wireless/nl80211.h +++ b/net/wireless/nl80211.h @@ -42,7 +42,7 @@ void nl80211_send_roamed(struct cfg80211_registered_device *rdev, const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp); void nl80211_send_disconnected(struct cfg80211_registered_device *rdev, struct net_device *netdev, u16 reason, - u8 *ie, size_t ie_len, bool from_ap, gfp_t gfp); + const u8 *ie, size_t ie_len, bool from_ap); void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev, diff --git a/net/wireless/scan.c b/net/wireless/scan.c index 1625faf1de5..4f552c3f29a 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -17,13 +17,21 @@ #define IEEE80211_SCAN_RESULT_EXPIRE (10 * HZ) -void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted) +void __cfg80211_scan_done(struct work_struct *wk) { + struct cfg80211_registered_device *rdev; + struct cfg80211_scan_request *request; struct net_device *dev; #ifdef CONFIG_WIRELESS_EXT union iwreq_data wrqu; #endif + rdev = container_of(wk, struct cfg80211_registered_device, + scan_done_wk); + + mutex_lock(&rdev->mtx); + request = rdev->scan_req; + dev = dev_get_by_index(&init_net, request->ifidx); if (!dev) goto out; @@ -35,7 +43,7 @@ void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted) */ cfg80211_sme_scan_done(dev); - if (aborted) + if (request->aborted) nl80211_send_scan_aborted(wiphy_to_dev(request->wiphy), dev); else nl80211_send_scan_done(wiphy_to_dev(request->wiphy), dev); @@ -43,7 +51,7 @@ void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted) wiphy_to_dev(request->wiphy)->scan_req = NULL; #ifdef CONFIG_WIRELESS_EXT - if (!aborted) { + if (!request->aborted) { memset(&wrqu, 0, sizeof(wrqu)); wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL); @@ -53,8 +61,24 @@ void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted) dev_put(dev); out: + cfg80211_unlock_rdev(rdev); kfree(request); } + +void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted) +{ + struct net_device *dev = dev_get_by_index(&init_net, request->ifidx); + if (WARN_ON(!dev)) { + kfree(request); + return; + } + + WARN_ON(request != wiphy_to_dev(request->wiphy)->scan_req); + + request->aborted = aborted; + schedule_work(&wiphy_to_dev(request->wiphy)->scan_done_wk); + dev_put(dev); +} EXPORT_SYMBOL(cfg80211_scan_done); static void bss_release(struct kref *ref) diff --git a/net/wireless/sme.c b/net/wireless/sme.c index 066a19ef9d7..472e2412c78 100644 --- a/net/wireless/sme.c +++ b/net/wireless/sme.c @@ -38,6 +38,8 @@ static int cfg80211_conn_scan(struct wireless_dev *wdev) int n_channels, err; ASSERT_RTNL(); + ASSERT_RDEV_LOCK(drv); + ASSERT_WDEV_LOCK(wdev); if (drv->scan_req) return -EBUSY; @@ -106,6 +108,8 @@ static int cfg80211_conn_do_work(struct wireless_dev *wdev) struct cfg80211_connect_params *params; int err; + ASSERT_WDEV_LOCK(wdev); + if (!wdev->conn) return 0; @@ -117,11 +121,11 @@ static int cfg80211_conn_do_work(struct wireless_dev *wdev) case CFG80211_CONN_AUTHENTICATE_NEXT: BUG_ON(!drv->ops->auth); wdev->conn->state = CFG80211_CONN_AUTHENTICATING; - return cfg80211_mlme_auth(drv, wdev->netdev, - params->channel, params->auth_type, - params->bssid, - params->ssid, params->ssid_len, - NULL, 0); + return __cfg80211_mlme_auth(drv, wdev->netdev, + params->channel, params->auth_type, + params->bssid, + params->ssid, params->ssid_len, + NULL, 0); case CFG80211_CONN_ASSOCIATE_NEXT: BUG_ON(!drv->ops->assoc); wdev->conn->state = CFG80211_CONN_ASSOCIATING; @@ -131,14 +135,16 @@ static int cfg80211_conn_do_work(struct wireless_dev *wdev) * that some APs don't like that -- so we'd need to retry * the association. */ - err = cfg80211_mlme_assoc(drv, wdev->netdev, - params->channel, params->bssid, NULL, - params->ssid, params->ssid_len, - params->ie, params->ie_len, - false, ¶ms->crypto); + err = __cfg80211_mlme_assoc(drv, wdev->netdev, + params->channel, params->bssid, + NULL, + params->ssid, params->ssid_len, + params->ie, params->ie_len, + false, ¶ms->crypto); if (err) - cfg80211_mlme_deauth(drv, wdev->netdev, params->bssid, - NULL, 0, WLAN_REASON_DEAUTH_LEAVING); + __cfg80211_mlme_deauth(drv, wdev->netdev, params->bssid, + NULL, 0, + WLAN_REASON_DEAUTH_LEAVING); return err; default: return 0; @@ -152,22 +158,31 @@ void cfg80211_conn_work(struct work_struct *work) struct wireless_dev *wdev; rtnl_lock(); + cfg80211_lock_rdev(drv); mutex_lock(&drv->devlist_mtx); list_for_each_entry(wdev, &drv->netdev_list, list) { - if (!netif_running(wdev->netdev)) + wdev_lock(wdev); + if (!netif_running(wdev->netdev)) { + wdev_unlock(wdev); continue; - if (wdev->sme_state != CFG80211_SME_CONNECTING) + } + if (wdev->sme_state != CFG80211_SME_CONNECTING) { + wdev_unlock(wdev); continue; + } if (cfg80211_conn_do_work(wdev)) - cfg80211_connect_result(wdev->netdev, - wdev->conn->params.bssid, - NULL, 0, NULL, 0, - WLAN_STATUS_UNSPECIFIED_FAILURE, - GFP_ATOMIC); + __cfg80211_connect_result( + wdev->netdev, + wdev->conn->params.bssid, + NULL, 0, NULL, 0, + WLAN_STATUS_UNSPECIFIED_FAILURE, + false); + wdev_unlock(wdev); } mutex_unlock(&drv->devlist_mtx); + cfg80211_unlock_rdev(drv); rtnl_unlock(); } @@ -177,6 +192,8 @@ static bool cfg80211_get_conn_bss(struct wireless_dev *wdev) struct cfg80211_bss *bss; u16 capa = WLAN_CAPABILITY_ESS; + ASSERT_WDEV_LOCK(wdev); + if (wdev->conn->params.privacy) capa |= WLAN_CAPABILITY_PRIVACY; @@ -198,11 +215,13 @@ static bool cfg80211_get_conn_bss(struct wireless_dev *wdev) return true; } -void cfg80211_sme_scan_done(struct net_device *dev) +static void __cfg80211_sme_scan_done(struct net_device *dev) { struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_registered_device *drv = wiphy_to_dev(wdev->wiphy); + ASSERT_WDEV_LOCK(wdev); + if (wdev->sme_state != CFG80211_SME_CONNECTING) return; @@ -218,15 +237,26 @@ void cfg80211_sme_scan_done(struct net_device *dev) if (wdev->conn->state == CFG80211_CONN_SCAN_AGAIN) schedule_work(&drv->conn_work); else - cfg80211_connect_result(dev, wdev->conn->params.bssid, - NULL, 0, NULL, 0, - WLAN_STATUS_UNSPECIFIED_FAILURE, - GFP_ATOMIC); - return; + __cfg80211_connect_result( + wdev->netdev, + wdev->conn->params.bssid, + NULL, 0, NULL, 0, + WLAN_STATUS_UNSPECIFIED_FAILURE, + false); } } -void cfg80211_sme_rx_auth(struct net_device *dev, const u8 *buf, size_t len) +void cfg80211_sme_scan_done(struct net_device *dev) +{ + struct wireless_dev *wdev = dev->ieee80211_ptr; + + wdev_lock(wdev); + __cfg80211_sme_scan_done(dev); + wdev_unlock(wdev); +} + +void cfg80211_sme_rx_auth(struct net_device *dev, + const u8 *buf, size_t len) { struct wireless_dev *wdev = dev->ieee80211_ptr; struct wiphy *wiphy = wdev->wiphy; @@ -234,6 +264,8 @@ void cfg80211_sme_rx_auth(struct net_device *dev, const u8 *buf, size_t len) struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; u16 status_code = le16_to_cpu(mgmt->u.auth.status_code); + ASSERT_WDEV_LOCK(wdev); + /* should only RX auth frames when connecting */ if (wdev->sme_state != CFG80211_SME_CONNECTING) return; @@ -273,10 +305,10 @@ void cfg80211_sme_rx_auth(struct net_device *dev, const u8 *buf, size_t len) } } -static void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid, - const u8 *req_ie, size_t req_ie_len, - const u8 *resp_ie, size_t resp_ie_len, - u16 status, bool wextev, gfp_t gfp) +void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid, + const u8 *req_ie, size_t req_ie_len, + const u8 *resp_ie, size_t resp_ie_len, + u16 status, bool wextev) { struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_bss *bss; @@ -284,18 +316,20 @@ static void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid, union iwreq_data wrqu; #endif + ASSERT_WDEV_LOCK(wdev); + if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION)) return; if (wdev->sme_state == CFG80211_SME_CONNECTED) nl80211_send_roamed(wiphy_to_dev(wdev->wiphy), dev, bssid, req_ie, req_ie_len, - resp_ie, resp_ie_len, gfp); + resp_ie, resp_ie_len, GFP_KERNEL); else nl80211_send_connect_result(wiphy_to_dev(wdev->wiphy), dev, bssid, req_ie, req_ie_len, resp_ie, resp_ie_len, - status, gfp); + status, GFP_KERNEL); #ifdef CONFIG_WIRELESS_EXT if (wextev) { @@ -362,21 +396,43 @@ void cfg80211_connect_result(struct net_device *dev, const u8 *bssid, const u8 *resp_ie, size_t resp_ie_len, u16 status, gfp_t gfp) { - bool wextev = status == WLAN_STATUS_SUCCESS; - __cfg80211_connect_result(dev, bssid, req_ie, req_ie_len, resp_ie, resp_ie_len, status, wextev, gfp); + struct wireless_dev *wdev = dev->ieee80211_ptr; + struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); + struct cfg80211_event *ev; + unsigned long flags; + + ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp); + if (!ev) + return; + + ev->type = EVENT_CONNECT_RESULT; + memcpy(ev->cr.bssid, bssid, ETH_ALEN); + ev->cr.req_ie = ((u8 *)ev) + sizeof(*ev); + ev->cr.req_ie_len = req_ie_len; + memcpy((void *)ev->cr.req_ie, req_ie, req_ie_len); + ev->cr.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len; + ev->cr.resp_ie_len = resp_ie_len; + memcpy((void *)ev->cr.resp_ie, resp_ie, resp_ie_len); + ev->cr.status = status; + + spin_lock_irqsave(&wdev->event_lock, flags); + list_add_tail(&ev->list, &wdev->event_list); + spin_unlock_irqrestore(&wdev->event_lock, flags); + schedule_work(&rdev->event_work); } EXPORT_SYMBOL(cfg80211_connect_result); -void cfg80211_roamed(struct net_device *dev, const u8 *bssid, - const u8 *req_ie, size_t req_ie_len, - const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) +void __cfg80211_roamed(struct wireless_dev *wdev, const u8 *bssid, + const u8 *req_ie, size_t req_ie_len, + const u8 *resp_ie, size_t resp_ie_len) { - struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_bss *bss; #ifdef CONFIG_WIRELESS_EXT union iwreq_data wrqu; #endif + ASSERT_WDEV_LOCK(wdev); + if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION)) return; @@ -402,31 +458,62 @@ void cfg80211_roamed(struct net_device *dev, const u8 *bssid, cfg80211_hold_bss(bss_from_pub(bss)); wdev->current_bss = bss_from_pub(bss); - nl80211_send_roamed(wiphy_to_dev(wdev->wiphy), dev, bssid, - req_ie, req_ie_len, resp_ie, resp_ie_len, gfp); + nl80211_send_roamed(wiphy_to_dev(wdev->wiphy), wdev->netdev, bssid, + req_ie, req_ie_len, resp_ie, resp_ie_len, + GFP_KERNEL); #ifdef CONFIG_WIRELESS_EXT if (req_ie) { memset(&wrqu, 0, sizeof(wrqu)); wrqu.data.length = req_ie_len; - wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu, req_ie); + wireless_send_event(wdev->netdev, IWEVASSOCRESPIE, + &wrqu, req_ie); } if (resp_ie) { memset(&wrqu, 0, sizeof(wrqu)); wrqu.data.length = resp_ie_len; - wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu, resp_ie); + wireless_send_event(wdev->netdev, IWEVASSOCRESPIE, + &wrqu, resp_ie); } memset(&wrqu, 0, sizeof(wrqu)); wrqu.ap_addr.sa_family = ARPHRD_ETHER; memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN); - wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); + wireless_send_event(wdev->netdev, SIOCGIWAP, &wrqu, NULL); #endif } + +void cfg80211_roamed(struct net_device *dev, const u8 *bssid, + const u8 *req_ie, size_t req_ie_len, + const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) +{ + struct wireless_dev *wdev = dev->ieee80211_ptr; + struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); + struct cfg80211_event *ev; + unsigned long flags; + + ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp); + if (!ev) + return; + + ev->type = EVENT_ROAMED; + memcpy(ev->rm.bssid, bssid, ETH_ALEN); + ev->rm.req_ie = ((u8 *)ev) + sizeof(*ev); + ev->rm.req_ie_len = req_ie_len; + memcpy((void *)ev->rm.req_ie, req_ie, req_ie_len); + ev->rm.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len; + ev->rm.resp_ie_len = resp_ie_len; + memcpy((void *)ev->rm.resp_ie, resp_ie, resp_ie_len); + + spin_lock_irqsave(&wdev->event_lock, flags); + list_add_tail(&ev->list, &wdev->event_list); + spin_unlock_irqrestore(&wdev->event_lock, flags); + schedule_work(&rdev->event_work); +} EXPORT_SYMBOL(cfg80211_roamed); -void __cfg80211_disconnected(struct net_device *dev, gfp_t gfp, u8 *ie, +void __cfg80211_disconnected(struct net_device *dev, const u8 *ie, size_t ie_len, u16 reason, bool from_ap) { struct wireless_dev *wdev = dev->ieee80211_ptr; @@ -434,6 +521,8 @@ void __cfg80211_disconnected(struct net_device *dev, gfp_t gfp, u8 *ie, union iwreq_data wrqu; #endif + ASSERT_WDEV_LOCK(wdev); + if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION)) return; @@ -456,7 +545,7 @@ void __cfg80211_disconnected(struct net_device *dev, gfp_t gfp, u8 *ie, } nl80211_send_disconnected(wiphy_to_dev(wdev->wiphy), dev, - reason, ie, ie_len, from_ap, gfp); + reason, ie, ie_len, from_ap); #ifdef CONFIG_WIRELESS_EXT memset(&wrqu, 0, sizeof(wrqu)); @@ -468,16 +557,36 @@ void __cfg80211_disconnected(struct net_device *dev, gfp_t gfp, u8 *ie, void cfg80211_disconnected(struct net_device *dev, u16 reason, u8 *ie, size_t ie_len, gfp_t gfp) { - __cfg80211_disconnected(dev, gfp, ie, ie_len, reason, true); + struct wireless_dev *wdev = dev->ieee80211_ptr; + struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); + struct cfg80211_event *ev; + unsigned long flags; + + ev = kzalloc(sizeof(*ev) + ie_len, gfp); + if (!ev) + return; + + ev->type = EVENT_DISCONNECTED; + ev->dc.ie = ((u8 *)ev) + sizeof(*ev); + ev->dc.ie_len = ie_len; + memcpy((void *)ev->dc.ie, ie, ie_len); + ev->dc.reason = reason; + + spin_lock_irqsave(&wdev->event_lock, flags); + list_add_tail(&ev->list, &wdev->event_list); + spin_unlock_irqrestore(&wdev->event_lock, flags); + schedule_work(&rdev->event_work); } EXPORT_SYMBOL(cfg80211_disconnected); -int cfg80211_connect(struct cfg80211_registered_device *rdev, - struct net_device *dev, - struct cfg80211_connect_params *connect) +int __cfg80211_connect(struct cfg80211_registered_device *rdev, + struct net_device *dev, + struct cfg80211_connect_params *connect) { - int err; struct wireless_dev *wdev = dev->ieee80211_ptr; + int err; + + ASSERT_WDEV_LOCK(wdev); if (wdev->sme_state != CFG80211_SME_IDLE) return -EALREADY; @@ -572,12 +681,27 @@ int cfg80211_connect(struct cfg80211_registered_device *rdev, } } -int cfg80211_disconnect(struct cfg80211_registered_device *rdev, - struct net_device *dev, u16 reason, bool wextev) +int cfg80211_connect(struct cfg80211_registered_device *rdev, + struct net_device *dev, + struct cfg80211_connect_params *connect) +{ + int err; + + wdev_lock(dev->ieee80211_ptr); + err = __cfg80211_connect(rdev, dev, connect); + wdev_unlock(dev->ieee80211_ptr); + + return err; +} + +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; + ASSERT_WDEV_LOCK(wdev); + if (wdev->sme_state == CFG80211_SME_IDLE) return -EINVAL; @@ -601,8 +725,9 @@ int cfg80211_disconnect(struct cfg80211_registered_device *rdev, } /* wdev->conn->params.bssid must be set if > SCANNING */ - err = cfg80211_mlme_deauth(rdev, dev, wdev->conn->params.bssid, - NULL, 0, reason); + err = __cfg80211_mlme_deauth(rdev, dev, + wdev->conn->params.bssid, + NULL, 0, reason); if (err) return err; } else { @@ -612,21 +737,36 @@ int cfg80211_disconnect(struct cfg80211_registered_device *rdev, } if (wdev->sme_state == CFG80211_SME_CONNECTED) - __cfg80211_disconnected(dev, GFP_KERNEL, NULL, 0, 0, false); + __cfg80211_disconnected(dev, NULL, 0, 0, false); else if (wdev->sme_state == CFG80211_SME_CONNECTING) __cfg80211_connect_result(dev, NULL, NULL, 0, NULL, 0, WLAN_STATUS_UNSPECIFIED_FAILURE, - wextev, GFP_KERNEL); + wextev); 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, int idx) { struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); u8 bssid[ETH_ALEN]; + ASSERT_WDEV_LOCK(wdev); + if (!wdev->conn) return; diff --git a/net/wireless/wext-sme.c b/net/wireless/wext-sme.c index fe1987acb89..6f75aaa7f79 100644 --- a/net/wireless/wext-sme.c +++ b/net/wireless/wext-sme.c @@ -15,6 +15,9 @@ static int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev, { int err; + ASSERT_RDEV_LOCK(rdev); + ASSERT_WDEV_LOCK(wdev); + if (!netif_running(wdev->netdev)) return 0; @@ -24,8 +27,8 @@ static int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev, err = 0; if (wdev->wext.connect.ssid_len != 0) - err = cfg80211_connect(rdev, wdev->netdev, - &wdev->wext.connect); + err = __cfg80211_connect(rdev, wdev->netdev, + &wdev->wext.connect); return err; } @@ -50,33 +53,43 @@ int cfg80211_mgd_wext_siwfreq(struct net_device *dev, if (chan && (chan->flags & IEEE80211_CHAN_DISABLED)) return -EINVAL; - if (wdev->wext.connect.channel == chan) - return 0; + cfg80211_lock_rdev(rdev); + wdev_lock(wdev); + + if (wdev->wext.connect.channel == chan) { + err = 0; + goto out; + } if (wdev->sme_state != CFG80211_SME_IDLE) { bool event = true; /* if SSID set, we'll try right again, avoid event */ if (wdev->wext.connect.ssid_len) event = false; - err = cfg80211_disconnect(wiphy_to_dev(wdev->wiphy), - dev, WLAN_REASON_DEAUTH_LEAVING, - event); + err = __cfg80211_disconnect(wiphy_to_dev(wdev->wiphy), + dev, WLAN_REASON_DEAUTH_LEAVING, + event); if (err) - return err; + goto out; } + wdev->wext.connect.channel = chan; /* SSID is not set, we just want to switch channel */ if (wdev->wext.connect.ssid_len && chan) { - if (!rdev->ops->set_channel) - return -EOPNOTSUPP; - - return rdev->ops->set_channel(wdev->wiphy, chan, - NL80211_CHAN_NO_HT); + err = -EOPNOTSUPP; + if (rdev->ops->set_channel) + err = rdev->ops->set_channel(wdev->wiphy, chan, + NL80211_CHAN_NO_HT); + goto out; } - return cfg80211_mgd_wext_connect(wiphy_to_dev(wdev->wiphy), wdev); + err = cfg80211_mgd_wext_connect(wiphy_to_dev(wdev->wiphy), wdev); + out: + wdev_unlock(wdev); + cfg80211_unlock_rdev(rdev); + return err; } /* temporary symbol - mark GPL - in the future the handler won't be */ EXPORT_SYMBOL_GPL(cfg80211_mgd_wext_siwfreq); @@ -92,10 +105,12 @@ int cfg80211_mgd_wext_giwfreq(struct net_device *dev, if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION)) return -EINVAL; + wdev_lock(wdev); if (wdev->current_bss) chan = wdev->current_bss->pub.channel; else if (wdev->wext.connect.channel) chan = wdev->wext.connect.channel; + wdev_unlock(wdev); if (chan) { freq->m = chan->center_freq; @@ -128,21 +143,26 @@ int cfg80211_mgd_wext_siwessid(struct net_device *dev, if (len > 0 && ssid[len - 1] == '\0') len--; + cfg80211_lock_rdev(wiphy_to_dev(wdev->wiphy)); + wdev_lock(wdev); + + err = 0; + if (wdev->wext.connect.ssid && len && len == wdev->wext.connect.ssid_len && memcmp(wdev->wext.connect.ssid, ssid, len)) - return 0; + goto out; if (wdev->sme_state != CFG80211_SME_IDLE) { bool event = true; /* if SSID set now, we'll try to connect, avoid event */ if (len) event = false; - err = cfg80211_disconnect(wiphy_to_dev(wdev->wiphy), - dev, WLAN_REASON_DEAUTH_LEAVING, - event); + err = __cfg80211_disconnect(wiphy_to_dev(wdev->wiphy), + dev, WLAN_REASON_DEAUTH_LEAVING, + event); if (err) - return err; + goto out; } wdev->wext.connect.ssid = wdev->wext.ssid; @@ -151,7 +171,11 @@ int cfg80211_mgd_wext_siwessid(struct net_device *dev, wdev->wext.connect.crypto.control_port = false; - return cfg80211_mgd_wext_connect(wiphy_to_dev(wdev->wiphy), wdev); + err = cfg80211_mgd_wext_connect(wiphy_to_dev(wdev->wiphy), wdev); + out: + wdev_unlock(wdev); + cfg80211_unlock_rdev(wiphy_to_dev(wdev->wiphy)); + return err; } /* temporary symbol - mark GPL - in the future the handler won't be */ EXPORT_SYMBOL_GPL(cfg80211_mgd_wext_siwessid); @@ -168,6 +192,7 @@ int cfg80211_mgd_wext_giwessid(struct net_device *dev, data->flags = 0; + wdev_lock(wdev); if (wdev->ssid_len) { data->flags = 1; data->length = wdev->ssid_len; @@ -178,6 +203,7 @@ int cfg80211_mgd_wext_giwessid(struct net_device *dev, memcpy(ssid, wdev->wext.connect.ssid, data->length); } else data->flags = 0; + wdev_unlock(wdev); return 0; } @@ -203,21 +229,25 @@ 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(wiphy_to_dev(wdev->wiphy)); + wdev_lock(wdev); + + err = 0; /* both automatic */ if (!bssid && !wdev->wext.connect.bssid) - return 0; + goto out; /* fixed already - and no change */ if (wdev->wext.connect.bssid && bssid && compare_ether_addr(bssid, wdev->wext.connect.bssid) == 0) - return 0; + goto out; if (wdev->sme_state != CFG80211_SME_IDLE) { - err = cfg80211_disconnect(wiphy_to_dev(wdev->wiphy), - dev, WLAN_REASON_DEAUTH_LEAVING, - false); + err = __cfg80211_disconnect(wiphy_to_dev(wdev->wiphy), + dev, WLAN_REASON_DEAUTH_LEAVING, + false); if (err) - return err; + goto out; } if (bssid) { @@ -226,7 +256,11 @@ int cfg80211_mgd_wext_siwap(struct net_device *dev, } else wdev->wext.connect.bssid = NULL; - return cfg80211_mgd_wext_connect(wiphy_to_dev(wdev->wiphy), wdev); + err = cfg80211_mgd_wext_connect(wiphy_to_dev(wdev->wiphy), wdev); + out: + wdev_unlock(wdev); + cfg80211_unlock_rdev(wiphy_to_dev(wdev->wiphy)); + return err; } /* temporary symbol - mark GPL - in the future the handler won't be */ EXPORT_SYMBOL_GPL(cfg80211_mgd_wext_siwap); @@ -243,12 +277,14 @@ int cfg80211_mgd_wext_giwap(struct net_device *dev, ap_addr->sa_family = ARPHRD_ETHER; + wdev_lock(wdev); if (wdev->current_bss) memcpy(ap_addr->sa_data, wdev->current_bss->pub.bssid, ETH_ALEN); else if (wdev->wext.connect.bssid) memcpy(ap_addr->sa_data, wdev->wext.connect.bssid, ETH_ALEN); else memset(ap_addr->sa_data, 0, ETH_ALEN); + wdev_unlock(wdev); return 0; } @@ -270,15 +306,20 @@ int cfg80211_wext_siwgenie(struct net_device *dev, if (!ie_len) ie = NULL; + wdev_lock(wdev); + /* no change */ + err = 0; if (wdev->wext.ie_len == ie_len && memcmp(wdev->wext.ie, ie, ie_len) == 0) - return 0; + goto out; if (ie_len) { ie = kmemdup(extra, ie_len, GFP_KERNEL); - if (!ie) - return -ENOMEM; + if (!ie) { + err = -ENOMEM; + goto out; + } } else ie = NULL; @@ -287,14 +328,17 @@ 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) - return err; + goto out; } /* userspace better not think we'll reconnect */ - return 0; + err = 0; + out: + wdev_unlock(wdev); + return err; } EXPORT_SYMBOL_GPL(cfg80211_wext_siwgenie); @@ -305,6 +349,7 @@ int cfg80211_wext_siwmlme(struct net_device *dev, struct wireless_dev *wdev = dev->ieee80211_ptr; struct iw_mlme *mlme = (struct iw_mlme *)extra; struct cfg80211_registered_device *rdev; + int err; if (!wdev) return -EOPNOTSUPP; @@ -317,13 +362,19 @@ int cfg80211_wext_siwmlme(struct net_device *dev, if (mlme->addr.sa_family != ARPHRD_ETHER) return -EINVAL; + wdev_lock(wdev); switch (mlme->cmd) { case IW_MLME_DEAUTH: case IW_MLME_DISASSOC: - return cfg80211_disconnect(rdev, dev, mlme->reason_code, - true); + err = __cfg80211_disconnect(rdev, dev, mlme->reason_code, + true); + break; default: - return -EOPNOTSUPP; + err = -EOPNOTSUPP; + break; } + wdev_unlock(wdev); + + return err; } EXPORT_SYMBOL_GPL(cfg80211_wext_siwmlme); 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