sta_info.c (4a80f2788952055a627f2093a0174537d70aec1b) sta_info.c (ee3858551ae6d044578f598f8001db5f1a9fd52e)
1/*
2 * Copyright 2002-2005, Instant802 Networks, Inc.
3 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 */

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16#include <linux/if_arp.h>
17#include <linux/timer.h>
18
19#include <net/mac80211.h>
20#include "ieee80211_i.h"
21#include "ieee80211_rate.h"
22#include "sta_info.h"
23#include "debugfs_sta.h"
1/*
2 * Copyright 2002-2005, Instant802 Networks, Inc.
3 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 */

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16#include <linux/if_arp.h>
17#include <linux/timer.h>
18
19#include <net/mac80211.h>
20#include "ieee80211_i.h"
21#include "ieee80211_rate.h"
22#include "sta_info.h"
23#include "debugfs_sta.h"
24#ifdef CONFIG_MAC80211_MESH
25#include "mesh.h"
26#endif
24
25/* Caller must hold local->sta_lock */
26static void sta_info_hash_add(struct ieee80211_local *local,
27 struct sta_info *sta)
28{
29 sta->hnext = local->sta_hash[STA_HASH(sta->addr)];
30 local->sta_hash[STA_HASH(sta->addr)] = sta;
31}

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79 if (sta)
80 __sta_info_get(sta);
81 read_unlock_bh(&local->sta_lock);
82
83 return sta;
84}
85EXPORT_SYMBOL(sta_info_get);
86
27
28/* Caller must hold local->sta_lock */
29static void sta_info_hash_add(struct ieee80211_local *local,
30 struct sta_info *sta)
31{
32 sta->hnext = local->sta_hash[STA_HASH(sta->addr)];
33 local->sta_hash[STA_HASH(sta->addr)] = sta;
34}

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82 if (sta)
83 __sta_info_get(sta);
84 read_unlock_bh(&local->sta_lock);
85
86 return sta;
87}
88EXPORT_SYMBOL(sta_info_get);
89
90struct sta_info *sta_info_get_by_idx(struct ieee80211_local *local, int idx,
91 struct net_device *dev)
92{
93 struct sta_info *sta;
94 int i = 0;
87
95
96 read_lock_bh(&local->sta_lock);
97 list_for_each_entry(sta, &local->sta_list, list) {
98 if (i < idx) {
99 ++i;
100 continue;
101 } else if (!dev || dev == sta->dev) {
102 __sta_info_get(sta);
103 read_unlock_bh(&local->sta_lock);
104 return sta;
105 }
106 }
107 read_unlock_bh(&local->sta_lock);
108
109 return NULL;
110}
111
88static void sta_info_release(struct kref *kref)
89{
90 struct sta_info *sta = container_of(kref, struct sta_info, kref);
91 struct ieee80211_local *local = sta->local;
92 struct sk_buff *skb;
93 int i;
94
95 /* free sta structure; it has already been removed from

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279 sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
280 if (sta->flags & WLAN_STA_PS) {
281 sta->flags &= ~WLAN_STA_PS;
282 if (sdata->bss)
283 atomic_dec(&sdata->bss->num_sta_ps);
284 __sta_info_clear_tim_bit(sdata->bss, sta);
285 }
286 local->num_sta--;
112static void sta_info_release(struct kref *kref)
113{
114 struct sta_info *sta = container_of(kref, struct sta_info, kref);
115 struct ieee80211_local *local = sta->local;
116 struct sk_buff *skb;
117 int i;
118
119 /* free sta structure; it has already been removed from

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303 sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
304 if (sta->flags & WLAN_STA_PS) {
305 sta->flags &= ~WLAN_STA_PS;
306 if (sdata->bss)
307 atomic_dec(&sdata->bss->num_sta_ps);
308 __sta_info_clear_tim_bit(sdata->bss, sta);
309 }
310 local->num_sta--;
311
312#ifdef CONFIG_MAC80211_MESH
313 if (sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT)
314 mesh_accept_plinks_update(sdata->dev);
315#endif
287}
288
289void sta_info_free(struct sta_info *sta)
290{
291 struct sk_buff *skb;
292 struct ieee80211_local *local = sta->local;
316}
317
318void sta_info_free(struct sta_info *sta)
319{
320 struct sk_buff *skb;
321 struct ieee80211_local *local = sta->local;
322 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
323
293 DECLARE_MAC_BUF(mac);
294
295 might_sleep();
296
297 write_lock_bh(&local->sta_lock);
298 sta_info_remove(sta);
299 write_unlock_bh(&local->sta_lock);
300
324 DECLARE_MAC_BUF(mac);
325
326 might_sleep();
327
328 write_lock_bh(&local->sta_lock);
329 sta_info_remove(sta);
330 write_unlock_bh(&local->sta_lock);
331
332#ifdef CONFIG_MAC80211_MESH
333 if (sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT) {
334 spin_lock_bh(&sta->plink_lock);
335 mesh_plink_deactivate(sta);
336 spin_unlock_bh(&sta->plink_lock);
337 }
338#endif
339
301 while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) {
302 local->total_ps_buffered--;
303 dev_kfree_skb(skb);
304 }
305 while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) {
306 dev_kfree_skb(skb);
307 }
308
309#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
310 printk(KERN_DEBUG "%s: Removed STA %s\n",
311 wiphy_name(local->hw.wiphy), print_mac(mac, sta->addr));
312#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
313
314 ieee80211_key_free(sta->key);
315 WARN_ON(sta->key);
316
317 if (local->ops->sta_notify) {
340 while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) {
341 local->total_ps_buffered--;
342 dev_kfree_skb(skb);
343 }
344 while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) {
345 dev_kfree_skb(skb);
346 }
347
348#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
349 printk(KERN_DEBUG "%s: Removed STA %s\n",
350 wiphy_name(local->hw.wiphy), print_mac(mac, sta->addr));
351#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
352
353 ieee80211_key_free(sta->key);
354 WARN_ON(sta->key);
355
356 if (local->ops->sta_notify) {
318 struct ieee80211_sub_if_data *sdata;
319
357
320 sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
321
322 if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN)
323 sdata = sdata->u.vlan.ap;
324
325 local->ops->sta_notify(local_to_hw(local), &sdata->vif,
326 STA_NOTIFY_REMOVE, sta->addr);
327 }
328
329 rate_control_remove_sta_debugfs(sta);

--- 160 unchanged lines hidden --- 		358 if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN)
359 sdata = sdata->u.vlan.ap;
360
361 local->ops->sta_notify(local_to_hw(local), &sdata->vif,
362 STA_NOTIFY_REMOVE, sta->addr);
363 }
364
365 rate_control_remove_sta_debugfs(sta);

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