X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=net%2Fieee80211%2Fsoftmac%2Fieee80211softmac_assoc.c;fp=net%2Fieee80211%2Fsoftmac%2Fieee80211softmac_assoc.c;h=a824852909e45b6fd3ab4dc27735921ffc9f9d6a;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=44215ce64d4e9db3c9abb54edbfd35c154590bfd;hpb=76828883507a47dae78837ab5dec5a5b4513c667;p=linux-2.6.git

diff --git a/net/ieee80211/softmac/ieee80211softmac_assoc.c b/net/ieee80211/softmac/ieee80211softmac_assoc.c
index 44215ce64..a82485290 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
 	dprintk(KERN_INFO PFX "sent association request!\n");
 
 	spin_lock_irqsave(&mac->lock, flags);
-	mac->associated = 0; /* just to make sure */
+	mac->associnfo.associated = 0; /* just to make sure */
 
 	/* Set a timer for timeout */
 	/* FIXME: make timeout configurable */
@@ -58,28 +58,28 @@ ieee80211softmac_assoc(struct ieee80211softmac_device *mac, struct ieee80211soft
 }
 
 void
-ieee80211softmac_assoc_timeout(void *d)
+ieee80211softmac_assoc_timeout(struct work_struct *work)
 {
-	struct ieee80211softmac_device *mac = (struct ieee80211softmac_device *)d;
+	struct ieee80211softmac_device *mac =
+		container_of(work, struct ieee80211softmac_device,
+			     associnfo.timeout.work);
 	struct ieee80211softmac_network *n;
-	unsigned long flags;
 
-	spin_lock_irqsave(&mac->lock, flags);
+	mutex_lock(&mac->associnfo.mutex);
 	/* we might race against ieee80211softmac_handle_assoc_response,
 	 * so make sure only one of us does something */
-	if (!mac->associnfo.associating) {
-		spin_unlock_irqrestore(&mac->lock, flags);
-		return;
-	}
+	if (!mac->associnfo.associating)
+		goto out;
 	mac->associnfo.associating = 0;
 	mac->associnfo.bssvalid = 0;
-	mac->associated = 0;
+	mac->associnfo.associated = 0;
 
 	n = ieee80211softmac_get_network_by_bssid_locked(mac, mac->associnfo.bssid);
-	spin_unlock_irqrestore(&mac->lock, flags);
 
 	dprintk(KERN_INFO PFX "assoc request timed out!\n");
 	ieee80211softmac_call_events(mac, IEEE80211SOFTMAC_EVENT_ASSOCIATE_TIMEOUT, n);
+out:
+	mutex_unlock(&mac->associnfo.mutex);
 }
 
 void
@@ -93,10 +93,10 @@ ieee80211softmac_disassoc(struct ieee80211softmac_device *mac)
 
 	netif_carrier_off(mac->dev);
 
-	mac->associated = 0;
+	mac->associnfo.associated = 0;
 	mac->associnfo.bssvalid = 0;
 	mac->associnfo.associating = 0;
-	ieee80211softmac_init_txrates(mac);
+	ieee80211softmac_init_bss(mac);
 	ieee80211softmac_call_events_locked(mac, IEEE80211SOFTMAC_EVENT_DISASSOCIATED, NULL);
 	spin_unlock_irqrestore(&mac->lock, flags);
 }
@@ -107,7 +107,7 @@ ieee80211softmac_send_disassoc_req(struct ieee80211softmac_device *mac, u16 reas
 {
 	struct ieee80211softmac_network *found;
 
-	if (mac->associnfo.bssvalid && mac->associated) {
+	if (mac->associnfo.bssvalid && mac->associnfo.associated) {
 		found = ieee80211softmac_get_network_by_bssid(mac, mac->associnfo.bssid);
 		if (found)
 			ieee80211softmac_send_mgt_frame(mac, found, IEEE80211_STYPE_DISASSOC, reason);
@@ -167,7 +167,7 @@ static void
 ieee80211softmac_assoc_notify_scan(struct net_device *dev, int event_type, void *context)
 {
 	struct ieee80211softmac_device *mac = ieee80211_priv(dev);
-	ieee80211softmac_assoc_work((void*)mac);
+	ieee80211softmac_assoc_work(&mac->associnfo.work.work);
 }
 
 static void
@@ -177,7 +177,7 @@ ieee80211softmac_assoc_notify_auth(struct net_device *dev, int event_type, void
 
 	switch (event_type) {
 	case IEEE80211SOFTMAC_EVENT_AUTHENTICATED:
-		ieee80211softmac_assoc_work((void*)mac);
+		ieee80211softmac_assoc_work(&mac->associnfo.work.work);
 		break;
 	case IEEE80211SOFTMAC_EVENT_AUTH_FAILED:
 	case IEEE80211SOFTMAC_EVENT_AUTH_TIMEOUT:
@@ -188,25 +188,28 @@ ieee80211softmac_assoc_notify_auth(struct net_device *dev, int event_type, void
 
 /* This function is called to handle userspace requests (asynchronously) */
 void
-ieee80211softmac_assoc_work(void *d)
+ieee80211softmac_assoc_work(struct work_struct *work)
 {
-	struct ieee80211softmac_device *mac = (struct ieee80211softmac_device *)d;
+	struct ieee80211softmac_device *mac =
+		container_of(work, struct ieee80211softmac_device,
+			     associnfo.work.work);
 	struct ieee80211softmac_network *found = NULL;
 	struct ieee80211_network *net = NULL, *best = NULL;
 	int bssvalid;
 	unsigned long flags;
 
+	mutex_lock(&mac->associnfo.mutex);
+
+	if (!mac->associnfo.associating)
+		goto out;
+
 	/* ieee80211_disassoc might clear this */
 	bssvalid = mac->associnfo.bssvalid;
 
 	/* meh */
-	if (mac->associated)
+	if (mac->associnfo.associated)
 		ieee80211softmac_send_disassoc_req(mac, WLAN_REASON_DISASSOC_STA_HAS_LEFT);
 
-	spin_lock_irqsave(&mac->lock, flags);
-	mac->associnfo.associating = 1;
-	spin_unlock_irqrestore(&mac->lock, flags);
-
 	/* try to find the requested network in our list, if we found one already */
 	if (bssvalid || mac->associnfo.bssfixed)
 		found = ieee80211softmac_get_network_by_bssid(mac, mac->associnfo.bssid);	
@@ -260,10 +263,8 @@ ieee80211softmac_assoc_work(void *d)
 
 	if (!found) {
 		if (mac->associnfo.scan_retry > 0) {
-			spin_lock_irqsave(&mac->lock, flags);
 			mac->associnfo.scan_retry--;
-			spin_unlock_irqrestore(&mac->lock, flags);
-		
+
 			/* We know of no such network. Let's scan. 
 			 * NB: this also happens if we had no memory to copy the network info...
 			 * Maybe we can hope to have more memory after scanning finishes ;)
@@ -272,19 +273,17 @@ ieee80211softmac_assoc_work(void *d)
 			ieee80211softmac_notify(mac->dev, IEEE80211SOFTMAC_EVENT_SCAN_FINISHED, ieee80211softmac_assoc_notify_scan, NULL);
 			if (ieee80211softmac_start_scan(mac))
 				dprintk(KERN_INFO PFX "Associate: failed to initiate scan. Is device up?\n");
-			return;
+			goto out;
 		} else {
-			spin_lock_irqsave(&mac->lock, flags);
 			mac->associnfo.associating = 0;
-			mac->associated = 0;
-			spin_unlock_irqrestore(&mac->lock, flags);
+			mac->associnfo.associated = 0;
 
 			dprintk(KERN_INFO PFX "Unable to find matching network after scan!\n");
 			/* reset the retry counter for the next user request since we
 			 * break out and don't reschedule ourselves after this point. */
 			mac->associnfo.scan_retry = IEEE80211SOFTMAC_ASSOC_SCAN_RETRY_LIMIT;
 			ieee80211softmac_call_events(mac, IEEE80211SOFTMAC_EVENT_ASSOCIATE_NET_NOT_FOUND, NULL);
-			return;
+			goto out;
 		}
 	}
 
@@ -297,7 +296,7 @@ ieee80211softmac_assoc_work(void *d)
 	/* copy the ESSID for displaying it */
 	mac->associnfo.associate_essid.len = found->essid.len;
 	memcpy(mac->associnfo.associate_essid.data, found->essid.data, IW_ESSID_MAX_SIZE + 1);
-	
+
 	/* we found a network! authenticate (if necessary) and associate to it. */
 	if (found->authenticating) {
 		dprintk(KERN_INFO PFX "Already requested authentication, waiting...\n");
@@ -305,7 +304,7 @@ ieee80211softmac_assoc_work(void *d)
 			mac->associnfo.assoc_wait = 1;
 			ieee80211softmac_notify_internal(mac, IEEE80211SOFTMAC_EVENT_ANY, found, ieee80211softmac_assoc_notify_auth, NULL, GFP_KERNEL);
 		}
-		return;
+		goto out;
 	}
 	if (!found->authenticated && !found->authenticating) {
 		/* This relies on the fact that _auth_req only queues the work,
@@ -321,11 +320,14 @@ ieee80211softmac_assoc_work(void *d)
 			mac->associnfo.assoc_wait = 0;
 			ieee80211softmac_call_events(mac, IEEE80211SOFTMAC_EVENT_ASSOCIATE_FAILED, found);
 		}
-		return;
+		goto out;
 	}
 	/* finally! now we can start associating */
 	mac->associnfo.assoc_wait = 0;
 	ieee80211softmac_assoc(mac, found);
+
+out:
+	mutex_unlock(&mac->associnfo.mutex);
 }
 
 /* call this to do whatever is necessary when we're associated */
@@ -334,11 +336,19 @@ ieee80211softmac_associated(struct ieee80211softmac_device *mac,
 	struct ieee80211_assoc_response * resp,
 	struct ieee80211softmac_network *net)
 {
+	u16 cap = le16_to_cpu(resp->capability);
+	u8 erp_value = net->erp_value;
+
 	mac->associnfo.associating = 0;
-	mac->associnfo.supported_rates = net->supported_rates;
+	mac->bssinfo.supported_rates = net->supported_rates;
 	ieee80211softmac_recalc_txrates(mac);
 
-	mac->associated = 1;
+	mac->associnfo.associated = 1;
+
+	mac->associnfo.short_preamble_available =
+		(cap & WLAN_CAPABILITY_SHORT_PREAMBLE) != 0;
+	ieee80211softmac_process_erp(mac, erp_value);
+
 	if (mac->set_bssid_filter)
 		mac->set_bssid_filter(mac->dev, net->bssid);
 	memcpy(mac->ieee->bssid, net->bssid, ETH_ALEN);
@@ -351,9 +361,9 @@ ieee80211softmac_associated(struct ieee80211softmac_device *mac,
 int
 ieee80211softmac_handle_assoc_response(struct net_device * dev,
 				       struct ieee80211_assoc_response * resp,
-				       struct ieee80211_network * _ieee80211_network_do_not_use)
+				       struct ieee80211_network * _ieee80211_network)
 {
-	/* NOTE: the network parameter has to be ignored by
+	/* NOTE: the network parameter has to be mostly ignored by
 	 *       this code because it is the ieee80211's pointer
 	 *       to the struct, not ours (we made a copy)
 	 */
@@ -385,6 +395,11 @@ ieee80211softmac_handle_assoc_response(struct net_device * dev,
 	/* now that we know it was for us, we can cancel the timeout */
 	cancel_delayed_work(&mac->associnfo.timeout);
 
+	/* if the association response included an ERP IE, update our saved
+	 * copy */
+	if (_ieee80211_network->flags & NETWORK_HAS_ERP_VALUE)
+		network->erp_value = _ieee80211_network->erp_value;
+
 	switch (status) {
 		case 0:
 			dprintk(KERN_INFO PFX "associated!\n");
@@ -401,14 +416,14 @@ ieee80211softmac_handle_assoc_response(struct net_device * dev,
 				network->authenticated = 0;
 				/* we don't want to do this more than once ... */
 				network->auth_desynced_once = 1;
-				schedule_work(&mac->associnfo.work);
+				schedule_delayed_work(&mac->associnfo.work, 0);
 				break;
 			}
 		default:
 			dprintk(KERN_INFO PFX "associating failed (reason: 0x%x)!\n", status);
 			mac->associnfo.associating = 0;
 			mac->associnfo.bssvalid = 0;
-			mac->associated = 0;
+			mac->associnfo.associated = 0;
 			ieee80211softmac_call_events_locked(mac, IEEE80211SOFTMAC_EVENT_ASSOCIATE_FAILED, network);
 	}
 	
@@ -416,6 +431,17 @@ ieee80211softmac_handle_assoc_response(struct net_device * dev,
 	return 0;
 }
 
+void
+ieee80211softmac_try_reassoc(struct ieee80211softmac_device *mac)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&mac->lock, flags);
+	mac->associnfo.associating = 1;
+	schedule_delayed_work(&mac->associnfo.work, 0);
+	spin_unlock_irqrestore(&mac->lock, flags);
+}
+
 int
 ieee80211softmac_handle_disassoc(struct net_device * dev,
 				 struct ieee80211_disassoc *disassoc)
@@ -434,8 +460,7 @@ ieee80211softmac_handle_disassoc(struct net_device * dev,
 	dprintk(KERN_INFO PFX "got disassoc frame\n");
 	ieee80211softmac_disassoc(mac);
 
-	/* try to reassociate */
-	schedule_work(&mac->associnfo.work);
+	ieee80211softmac_try_reassoc(mac);
 
 	return 0;
 }
@@ -455,7 +480,7 @@ ieee80211softmac_handle_reassoc_req(struct net_device * dev,
 		dprintkl(KERN_INFO PFX "reassoc request from unknown network\n");
 		return 0;
 	}
-	schedule_work(&mac->associnfo.work);
+	schedule_delayed_work(&mac->associnfo.work, 0);
 
 	return 0;
 }