* Overview
*
* Before you can associate, you have to authenticate.
- *
+ *
*/
/* Sends out an association request to the desired AP */
/* Switch to correct channel for this network */
mac->set_channel(mac->dev, net->channel);
-
+
/* Send association request */
ieee80211softmac_send_mgt_frame(mac, net, IEEE80211_STYPE_ASSOC_REQ, 0);
-
+
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 */
}
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
netif_carrier_off(mac->dev);
- mac->associated = 0;
+ mac->associnfo.associated = 0;
mac->associnfo.bssvalid = 0;
mac->associnfo.associating = 0;
ieee80211softmac_init_bss(mac);
{
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);
}
/* if 'ANY' network requested, take any that doesn't have privacy enabled */
- if (mac->associnfo.req_essid.len == 0
+ if (mac->associnfo.req_essid.len == 0
&& !(net->capability & WLAN_CAPABILITY_PRIVACY))
return 1;
if (net->ssid_len != mac->associnfo.req_essid.len)
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
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:
/* 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);
-
+ found = ieee80211softmac_get_network_by_bssid(mac, mac->associnfo.bssid);
+
/* Search the ieee80211 networks for this network if we didn't find it by bssid,
* but only if we've scanned at least once (to get a better list of networks to
* select from). If we have not scanned before, the !found logic below will be
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.
+
+ /* 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 ;)
*/
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;
}
}
/* 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");
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,
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 */
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;
mac->set_bssid_filter(mac->dev, net->bssid);
memcpy(mac->ieee->bssid, net->bssid, ETH_ALEN);
netif_carrier_on(mac->dev);
-
+
mac->association_id = le16_to_cpup(&resp->aid);
}
if (unlikely(!mac->running))
return -ENODEV;
-
+
spin_lock_irqsave(&mac->lock, flags);
if (!mac->associnfo.associating) {
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);
}
-
+
spin_unlock_irqrestore(&mac->lock, flags);
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)
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;
}
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;
}
projects / linux-drm-fsl-dcu.git / blobdiff