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Diffstat (limited to 'net/ieee80211/softmac/ieee80211softmac_assoc.c')
-rw-r--r--net/ieee80211/softmac/ieee80211softmac_assoc.c72
1 files changed, 38 insertions, 34 deletions
diff --git a/net/ieee80211/softmac/ieee80211softmac_assoc.c b/net/ieee80211/softmac/ieee80211softmac_assoc.c
index d4c79ce16871..5d90b9a6ee50 100644
--- a/net/ieee80211/softmac/ieee80211softmac_assoc.c
+++ b/net/ieee80211/softmac/ieee80211softmac_assoc.c
@@ -82,51 +82,52 @@ ieee80211softmac_assoc_timeout(void *d)
82 ieee80211softmac_call_events(mac, IEEE80211SOFTMAC_EVENT_ASSOCIATE_TIMEOUT, NULL); 82 ieee80211softmac_call_events(mac, IEEE80211SOFTMAC_EVENT_ASSOCIATE_TIMEOUT, NULL);
83} 83}
84 84
85/* Sends out a disassociation request to the desired AP */
86void 85void
87ieee80211softmac_disassoc(struct ieee80211softmac_device *mac, u16 reason) 86ieee80211softmac_disassoc(struct ieee80211softmac_device *mac)
88{ 87{
89 unsigned long flags; 88 unsigned long flags;
89
90 spin_lock_irqsave(&mac->lock, flags);
91 if (mac->associnfo.associating)
92 cancel_delayed_work(&mac->associnfo.timeout);
93
94 netif_carrier_off(mac->dev);
95
96 mac->associated = 0;
97 mac->associnfo.bssvalid = 0;
98 mac->associnfo.associating = 0;
99 ieee80211softmac_init_txrates(mac);
100 ieee80211softmac_call_events_locked(mac, IEEE80211SOFTMAC_EVENT_DISASSOCIATED, NULL);
101 spin_unlock_irqrestore(&mac->lock, flags);
102}
103
104/* Sends out a disassociation request to the desired AP */
105void
106ieee80211softmac_send_disassoc_req(struct ieee80211softmac_device *mac, u16 reason)
107{
90 struct ieee80211softmac_network *found; 108 struct ieee80211softmac_network *found;
91 109
92 if (mac->associnfo.bssvalid && mac->associated) { 110 if (mac->associnfo.bssvalid && mac->associated) {
93 found = ieee80211softmac_get_network_by_bssid(mac, mac->associnfo.bssid); 111 found = ieee80211softmac_get_network_by_bssid(mac, mac->associnfo.bssid);
94 if (found) 112 if (found)
95 ieee80211softmac_send_mgt_frame(mac, found, IEEE80211_STYPE_DISASSOC, reason); 113 ieee80211softmac_send_mgt_frame(mac, found, IEEE80211_STYPE_DISASSOC, reason);
96 } else if (mac->associnfo.associating) {
97 cancel_delayed_work(&mac->associnfo.timeout);
98 } 114 }
99 115
100 /* Change our state */ 116 ieee80211softmac_disassoc(mac);
101 spin_lock_irqsave(&mac->lock, flags);
102 /* Do NOT clear bssvalid as that will break ieee80211softmac_assoc_work! */
103 mac->associated = 0;
104 mac->associnfo.associating = 0;
105 ieee80211softmac_call_events_locked(mac, IEEE80211SOFTMAC_EVENT_DISASSOCIATED, NULL);
106 spin_unlock_irqrestore(&mac->lock, flags);
107} 117}
108 118
109static inline int 119static inline int
110we_support_all_basic_rates(struct ieee80211softmac_device *mac, u8 *from, u8 from_len) 120we_support_all_basic_rates(struct ieee80211softmac_device *mac, u8 *from, u8 from_len)
111{ 121{
112 int idx, search, found; 122 int idx;
113 u8 rate, search_rate; 123 u8 rate;
114 124
115 for (idx = 0; idx < (from_len); idx++) { 125 for (idx = 0; idx < (from_len); idx++) {
116 rate = (from)[idx]; 126 rate = (from)[idx];
117 if (!(rate & IEEE80211_BASIC_RATE_MASK)) 127 if (!(rate & IEEE80211_BASIC_RATE_MASK))
118 continue; 128 continue;
119 found = 0;
120 rate &= ~IEEE80211_BASIC_RATE_MASK; 129 rate &= ~IEEE80211_BASIC_RATE_MASK;
121 for (search = 0; search < mac->ratesinfo.count; search++) { 130 if (!ieee80211softmac_ratesinfo_rate_supported(&mac->ratesinfo, rate))
122 search_rate = mac->ratesinfo.rates[search];
123 search_rate &= ~IEEE80211_BASIC_RATE_MASK;
124 if (rate == search_rate) {
125 found = 1;
126 break;
127 }
128 }
129 if (!found)
130 return 0; 131 return 0;
131 } 132 }
132 return 1; 133 return 1;
@@ -176,14 +177,18 @@ ieee80211softmac_assoc_work(void *d)
176 struct ieee80211softmac_device *mac = (struct ieee80211softmac_device *)d; 177 struct ieee80211softmac_device *mac = (struct ieee80211softmac_device *)d;
177 struct ieee80211softmac_network *found = NULL; 178 struct ieee80211softmac_network *found = NULL;
178 struct ieee80211_network *net = NULL, *best = NULL; 179 struct ieee80211_network *net = NULL, *best = NULL;
180 int bssvalid;
179 unsigned long flags; 181 unsigned long flags;
180 182
183 /* ieee80211_disassoc might clear this */
184 bssvalid = mac->associnfo.bssvalid;
185
181 /* meh */ 186 /* meh */
182 if (mac->associated) 187 if (mac->associated)
183 ieee80211softmac_disassoc(mac, WLAN_REASON_DISASSOC_STA_HAS_LEFT); 188 ieee80211softmac_send_disassoc_req(mac, WLAN_REASON_DISASSOC_STA_HAS_LEFT);
184 189
185 /* try to find the requested network in our list, if we found one already */ 190 /* try to find the requested network in our list, if we found one already */
186 if (mac->associnfo.bssvalid || mac->associnfo.bssfixed) 191 if (bssvalid || mac->associnfo.bssfixed)
187 found = ieee80211softmac_get_network_by_bssid(mac, mac->associnfo.bssid); 192 found = ieee80211softmac_get_network_by_bssid(mac, mac->associnfo.bssid);
188 193
189 /* Search the ieee80211 networks for this network if we didn't find it by bssid, 194 /* Search the ieee80211 networks for this network if we didn't find it by bssid,
@@ -297,6 +302,9 @@ ieee80211softmac_associated(struct ieee80211softmac_device *mac,
297 struct ieee80211softmac_network *net) 302 struct ieee80211softmac_network *net)
298{ 303{
299 mac->associnfo.associating = 0; 304 mac->associnfo.associating = 0;
305 mac->associnfo.supported_rates = net->supported_rates;
306 ieee80211softmac_recalc_txrates(mac);
307
300 mac->associated = 1; 308 mac->associated = 1;
301 if (mac->set_bssid_filter) 309 if (mac->set_bssid_filter)
302 mac->set_bssid_filter(mac->dev, net->bssid); 310 mac->set_bssid_filter(mac->dev, net->bssid);
@@ -380,7 +388,6 @@ ieee80211softmac_handle_disassoc(struct net_device * dev,
380 struct ieee80211_disassoc *disassoc) 388 struct ieee80211_disassoc *disassoc)
381{ 389{
382 struct ieee80211softmac_device *mac = ieee80211_priv(dev); 390 struct ieee80211softmac_device *mac = ieee80211_priv(dev);
383 unsigned long flags;
384 391
385 if (unlikely(!mac->running)) 392 if (unlikely(!mac->running))
386 return -ENODEV; 393 return -ENODEV;
@@ -392,14 +399,11 @@ ieee80211softmac_handle_disassoc(struct net_device * dev,
392 return 0; 399 return 0;
393 400
394 dprintk(KERN_INFO PFX "got disassoc frame\n"); 401 dprintk(KERN_INFO PFX "got disassoc frame\n");
395 netif_carrier_off(dev); 402 ieee80211softmac_disassoc(mac);
396 spin_lock_irqsave(&mac->lock, flags); 403
397 mac->associnfo.bssvalid = 0; 404 /* try to reassociate */
398 mac->associated = 0;
399 ieee80211softmac_call_events_locked(mac, IEEE80211SOFTMAC_EVENT_DISASSOCIATED, NULL);
400 schedule_work(&mac->associnfo.work); 405 schedule_work(&mac->associnfo.work);
401 spin_unlock_irqrestore(&mac->lock, flags); 406
402
403 return 0; 407 return 0;
404} 408}
405 409