diff options
Diffstat (limited to 'net/ieee80211/softmac/ieee80211softmac_assoc.c')
-rw-r--r-- | net/ieee80211/softmac/ieee80211softmac_assoc.c | 56 |
1 files changed, 27 insertions, 29 deletions
diff --git a/net/ieee80211/softmac/ieee80211softmac_assoc.c b/net/ieee80211/softmac/ieee80211softmac_assoc.c index 589f6d2c548a..cf51c87a971d 100644 --- a/net/ieee80211/softmac/ieee80211softmac_assoc.c +++ b/net/ieee80211/softmac/ieee80211softmac_assoc.c | |||
@@ -48,7 +48,7 @@ ieee80211softmac_assoc(struct ieee80211softmac_device *mac, struct ieee80211soft | |||
48 | dprintk(KERN_INFO PFX "sent association request!\n"); | 48 | dprintk(KERN_INFO PFX "sent association request!\n"); |
49 | 49 | ||
50 | spin_lock_irqsave(&mac->lock, flags); | 50 | spin_lock_irqsave(&mac->lock, flags); |
51 | mac->associated = 0; /* just to make sure */ | 51 | mac->associnfo.associated = 0; /* just to make sure */ |
52 | 52 | ||
53 | /* Set a timer for timeout */ | 53 | /* Set a timer for timeout */ |
54 | /* FIXME: make timeout configurable */ | 54 | /* FIXME: make timeout configurable */ |
@@ -62,24 +62,22 @@ ieee80211softmac_assoc_timeout(void *d) | |||
62 | { | 62 | { |
63 | struct ieee80211softmac_device *mac = (struct ieee80211softmac_device *)d; | 63 | struct ieee80211softmac_device *mac = (struct ieee80211softmac_device *)d; |
64 | struct ieee80211softmac_network *n; | 64 | struct ieee80211softmac_network *n; |
65 | unsigned long flags; | ||
66 | 65 | ||
67 | spin_lock_irqsave(&mac->lock, flags); | 66 | mutex_lock(&mac->associnfo.mutex); |
68 | /* we might race against ieee80211softmac_handle_assoc_response, | 67 | /* we might race against ieee80211softmac_handle_assoc_response, |
69 | * so make sure only one of us does something */ | 68 | * so make sure only one of us does something */ |
70 | if (!mac->associnfo.associating) { | 69 | if (!mac->associnfo.associating) |
71 | spin_unlock_irqrestore(&mac->lock, flags); | 70 | goto out; |
72 | return; | ||
73 | } | ||
74 | mac->associnfo.associating = 0; | 71 | mac->associnfo.associating = 0; |
75 | mac->associnfo.bssvalid = 0; | 72 | mac->associnfo.bssvalid = 0; |
76 | mac->associated = 0; | 73 | mac->associnfo.associated = 0; |
77 | 74 | ||
78 | n = ieee80211softmac_get_network_by_bssid_locked(mac, mac->associnfo.bssid); | 75 | n = ieee80211softmac_get_network_by_bssid_locked(mac, mac->associnfo.bssid); |
79 | spin_unlock_irqrestore(&mac->lock, flags); | ||
80 | 76 | ||
81 | dprintk(KERN_INFO PFX "assoc request timed out!\n"); | 77 | dprintk(KERN_INFO PFX "assoc request timed out!\n"); |
82 | ieee80211softmac_call_events(mac, IEEE80211SOFTMAC_EVENT_ASSOCIATE_TIMEOUT, n); | 78 | ieee80211softmac_call_events(mac, IEEE80211SOFTMAC_EVENT_ASSOCIATE_TIMEOUT, n); |
79 | out: | ||
80 | mutex_unlock(&mac->associnfo.mutex); | ||
83 | } | 81 | } |
84 | 82 | ||
85 | void | 83 | void |
@@ -93,7 +91,7 @@ ieee80211softmac_disassoc(struct ieee80211softmac_device *mac) | |||
93 | 91 | ||
94 | netif_carrier_off(mac->dev); | 92 | netif_carrier_off(mac->dev); |
95 | 93 | ||
96 | mac->associated = 0; | 94 | mac->associnfo.associated = 0; |
97 | mac->associnfo.bssvalid = 0; | 95 | mac->associnfo.bssvalid = 0; |
98 | mac->associnfo.associating = 0; | 96 | mac->associnfo.associating = 0; |
99 | ieee80211softmac_init_bss(mac); | 97 | ieee80211softmac_init_bss(mac); |
@@ -107,7 +105,7 @@ ieee80211softmac_send_disassoc_req(struct ieee80211softmac_device *mac, u16 reas | |||
107 | { | 105 | { |
108 | struct ieee80211softmac_network *found; | 106 | struct ieee80211softmac_network *found; |
109 | 107 | ||
110 | if (mac->associnfo.bssvalid && mac->associated) { | 108 | if (mac->associnfo.bssvalid && mac->associnfo.associated) { |
111 | found = ieee80211softmac_get_network_by_bssid(mac, mac->associnfo.bssid); | 109 | found = ieee80211softmac_get_network_by_bssid(mac, mac->associnfo.bssid); |
112 | if (found) | 110 | if (found) |
113 | ieee80211softmac_send_mgt_frame(mac, found, IEEE80211_STYPE_DISASSOC, reason); | 111 | ieee80211softmac_send_mgt_frame(mac, found, IEEE80211_STYPE_DISASSOC, reason); |
@@ -196,17 +194,18 @@ ieee80211softmac_assoc_work(void *d) | |||
196 | int bssvalid; | 194 | int bssvalid; |
197 | unsigned long flags; | 195 | unsigned long flags; |
198 | 196 | ||
197 | mutex_lock(&mac->associnfo.mutex); | ||
198 | |||
199 | if (!mac->associnfo.associating) | ||
200 | goto out; | ||
201 | |||
199 | /* ieee80211_disassoc might clear this */ | 202 | /* ieee80211_disassoc might clear this */ |
200 | bssvalid = mac->associnfo.bssvalid; | 203 | bssvalid = mac->associnfo.bssvalid; |
201 | 204 | ||
202 | /* meh */ | 205 | /* meh */ |
203 | if (mac->associated) | 206 | if (mac->associnfo.associated) |
204 | ieee80211softmac_send_disassoc_req(mac, WLAN_REASON_DISASSOC_STA_HAS_LEFT); | 207 | ieee80211softmac_send_disassoc_req(mac, WLAN_REASON_DISASSOC_STA_HAS_LEFT); |
205 | 208 | ||
206 | spin_lock_irqsave(&mac->lock, flags); | ||
207 | mac->associnfo.associating = 1; | ||
208 | spin_unlock_irqrestore(&mac->lock, flags); | ||
209 | |||
210 | /* try to find the requested network in our list, if we found one already */ | 209 | /* try to find the requested network in our list, if we found one already */ |
211 | if (bssvalid || mac->associnfo.bssfixed) | 210 | if (bssvalid || mac->associnfo.bssfixed) |
212 | found = ieee80211softmac_get_network_by_bssid(mac, mac->associnfo.bssid); | 211 | found = ieee80211softmac_get_network_by_bssid(mac, mac->associnfo.bssid); |
@@ -260,10 +259,8 @@ ieee80211softmac_assoc_work(void *d) | |||
260 | 259 | ||
261 | if (!found) { | 260 | if (!found) { |
262 | if (mac->associnfo.scan_retry > 0) { | 261 | if (mac->associnfo.scan_retry > 0) { |
263 | spin_lock_irqsave(&mac->lock, flags); | ||
264 | mac->associnfo.scan_retry--; | 262 | mac->associnfo.scan_retry--; |
265 | spin_unlock_irqrestore(&mac->lock, flags); | 263 | |
266 | |||
267 | /* We know of no such network. Let's scan. | 264 | /* We know of no such network. Let's scan. |
268 | * NB: this also happens if we had no memory to copy the network info... | 265 | * NB: this also happens if we had no memory to copy the network info... |
269 | * Maybe we can hope to have more memory after scanning finishes ;) | 266 | * Maybe we can hope to have more memory after scanning finishes ;) |
@@ -272,19 +269,17 @@ ieee80211softmac_assoc_work(void *d) | |||
272 | ieee80211softmac_notify(mac->dev, IEEE80211SOFTMAC_EVENT_SCAN_FINISHED, ieee80211softmac_assoc_notify_scan, NULL); | 269 | ieee80211softmac_notify(mac->dev, IEEE80211SOFTMAC_EVENT_SCAN_FINISHED, ieee80211softmac_assoc_notify_scan, NULL); |
273 | if (ieee80211softmac_start_scan(mac)) | 270 | if (ieee80211softmac_start_scan(mac)) |
274 | dprintk(KERN_INFO PFX "Associate: failed to initiate scan. Is device up?\n"); | 271 | dprintk(KERN_INFO PFX "Associate: failed to initiate scan. Is device up?\n"); |
275 | return; | 272 | goto out; |
276 | } else { | 273 | } else { |
277 | spin_lock_irqsave(&mac->lock, flags); | ||
278 | mac->associnfo.associating = 0; | 274 | mac->associnfo.associating = 0; |
279 | mac->associated = 0; | 275 | mac->associnfo.associated = 0; |
280 | spin_unlock_irqrestore(&mac->lock, flags); | ||
281 | 276 | ||
282 | dprintk(KERN_INFO PFX "Unable to find matching network after scan!\n"); | 277 | dprintk(KERN_INFO PFX "Unable to find matching network after scan!\n"); |
283 | /* reset the retry counter for the next user request since we | 278 | /* reset the retry counter for the next user request since we |
284 | * break out and don't reschedule ourselves after this point. */ | 279 | * break out and don't reschedule ourselves after this point. */ |
285 | mac->associnfo.scan_retry = IEEE80211SOFTMAC_ASSOC_SCAN_RETRY_LIMIT; | 280 | mac->associnfo.scan_retry = IEEE80211SOFTMAC_ASSOC_SCAN_RETRY_LIMIT; |
286 | ieee80211softmac_call_events(mac, IEEE80211SOFTMAC_EVENT_ASSOCIATE_NET_NOT_FOUND, NULL); | 281 | ieee80211softmac_call_events(mac, IEEE80211SOFTMAC_EVENT_ASSOCIATE_NET_NOT_FOUND, NULL); |
287 | return; | 282 | goto out; |
288 | } | 283 | } |
289 | } | 284 | } |
290 | 285 | ||
@@ -297,7 +292,7 @@ ieee80211softmac_assoc_work(void *d) | |||
297 | /* copy the ESSID for displaying it */ | 292 | /* copy the ESSID for displaying it */ |
298 | mac->associnfo.associate_essid.len = found->essid.len; | 293 | mac->associnfo.associate_essid.len = found->essid.len; |
299 | memcpy(mac->associnfo.associate_essid.data, found->essid.data, IW_ESSID_MAX_SIZE + 1); | 294 | memcpy(mac->associnfo.associate_essid.data, found->essid.data, IW_ESSID_MAX_SIZE + 1); |
300 | 295 | ||
301 | /* we found a network! authenticate (if necessary) and associate to it. */ | 296 | /* we found a network! authenticate (if necessary) and associate to it. */ |
302 | if (found->authenticating) { | 297 | if (found->authenticating) { |
303 | dprintk(KERN_INFO PFX "Already requested authentication, waiting...\n"); | 298 | dprintk(KERN_INFO PFX "Already requested authentication, waiting...\n"); |
@@ -305,7 +300,7 @@ ieee80211softmac_assoc_work(void *d) | |||
305 | mac->associnfo.assoc_wait = 1; | 300 | mac->associnfo.assoc_wait = 1; |
306 | ieee80211softmac_notify_internal(mac, IEEE80211SOFTMAC_EVENT_ANY, found, ieee80211softmac_assoc_notify_auth, NULL, GFP_KERNEL); | 301 | ieee80211softmac_notify_internal(mac, IEEE80211SOFTMAC_EVENT_ANY, found, ieee80211softmac_assoc_notify_auth, NULL, GFP_KERNEL); |
307 | } | 302 | } |
308 | return; | 303 | goto out; |
309 | } | 304 | } |
310 | if (!found->authenticated && !found->authenticating) { | 305 | if (!found->authenticated && !found->authenticating) { |
311 | /* This relies on the fact that _auth_req only queues the work, | 306 | /* This relies on the fact that _auth_req only queues the work, |
@@ -321,11 +316,14 @@ ieee80211softmac_assoc_work(void *d) | |||
321 | mac->associnfo.assoc_wait = 0; | 316 | mac->associnfo.assoc_wait = 0; |
322 | ieee80211softmac_call_events(mac, IEEE80211SOFTMAC_EVENT_ASSOCIATE_FAILED, found); | 317 | ieee80211softmac_call_events(mac, IEEE80211SOFTMAC_EVENT_ASSOCIATE_FAILED, found); |
323 | } | 318 | } |
324 | return; | 319 | goto out; |
325 | } | 320 | } |
326 | /* finally! now we can start associating */ | 321 | /* finally! now we can start associating */ |
327 | mac->associnfo.assoc_wait = 0; | 322 | mac->associnfo.assoc_wait = 0; |
328 | ieee80211softmac_assoc(mac, found); | 323 | ieee80211softmac_assoc(mac, found); |
324 | |||
325 | out: | ||
326 | mutex_unlock(&mac->associnfo.mutex); | ||
329 | } | 327 | } |
330 | 328 | ||
331 | /* call this to do whatever is necessary when we're associated */ | 329 | /* call this to do whatever is necessary when we're associated */ |
@@ -341,7 +339,7 @@ ieee80211softmac_associated(struct ieee80211softmac_device *mac, | |||
341 | mac->bssinfo.supported_rates = net->supported_rates; | 339 | mac->bssinfo.supported_rates = net->supported_rates; |
342 | ieee80211softmac_recalc_txrates(mac); | 340 | ieee80211softmac_recalc_txrates(mac); |
343 | 341 | ||
344 | mac->associated = 1; | 342 | mac->associnfo.associated = 1; |
345 | 343 | ||
346 | mac->associnfo.short_preamble_available = | 344 | mac->associnfo.short_preamble_available = |
347 | (cap & WLAN_CAPABILITY_SHORT_PREAMBLE) != 0; | 345 | (cap & WLAN_CAPABILITY_SHORT_PREAMBLE) != 0; |
@@ -421,7 +419,7 @@ ieee80211softmac_handle_assoc_response(struct net_device * dev, | |||
421 | dprintk(KERN_INFO PFX "associating failed (reason: 0x%x)!\n", status); | 419 | dprintk(KERN_INFO PFX "associating failed (reason: 0x%x)!\n", status); |
422 | mac->associnfo.associating = 0; | 420 | mac->associnfo.associating = 0; |
423 | mac->associnfo.bssvalid = 0; | 421 | mac->associnfo.bssvalid = 0; |
424 | mac->associated = 0; | 422 | mac->associnfo.associated = 0; |
425 | ieee80211softmac_call_events_locked(mac, IEEE80211SOFTMAC_EVENT_ASSOCIATE_FAILED, network); | 423 | ieee80211softmac_call_events_locked(mac, IEEE80211SOFTMAC_EVENT_ASSOCIATE_FAILED, network); |
426 | } | 424 | } |
427 | 425 | ||