struct ieee80211softmac_auth_queue_item *auth;
unsigned long flags;
- if (net->authenticating)
+ if (net->authenticating || net->authenticated)
return 0;
+ net->authenticating = 1;
/* Add the network if it's not already added */
ieee80211softmac_add_network(mac, net);
return;
}
net->authenticated = 0;
- net->authenticating = 1;
/* add a timeout call so we eventually give up waiting for an auth reply */
schedule_delayed_work(&auth->work, IEEE80211SOFTMAC_AUTH_TIMEOUT);
auth->retry--;
kfree(auth);
}
+/* Sends a response to an auth challenge (for shared key auth). */
+static void
+ieee80211softmac_auth_challenge_response(void *_aq)
+{
+ struct ieee80211softmac_auth_queue_item *aq = _aq;
+
+ /* Send our response */
+ ieee80211softmac_send_mgt_frame(aq->mac, aq->net, IEEE80211_STYPE_AUTH, aq->state);
+}
+
/* Handle the auth response from the AP
* This should be registered with ieee80211 as handle_auth
*/
/* Make sure that we've got an auth queue item for this request */
if(aq == NULL)
{
- printkl(KERN_DEBUG PFX "Authentication response received from "MAC_FMT" but no queue item exists.\n", MAC_ARG(auth->header.addr2));
+ dprintkl(KERN_DEBUG PFX "Authentication response received from "MAC_FMT" but no queue item exists.\n", MAC_ARG(auth->header.addr2));
/* Error #? */
return -1;
}
/* Check for out of order authentication */
if(!net->authenticating)
{
- printkl(KERN_DEBUG PFX "Authentication response received from "MAC_FMT" but did not request authentication.\n",MAC_ARG(auth->header.addr2));
+ dprintkl(KERN_DEBUG PFX "Authentication response received from "MAC_FMT" but did not request authentication.\n",MAC_ARG(auth->header.addr2));
return -1;
}
case IEEE80211SOFTMAC_AUTH_SHARED_CHALLENGE:
/* Check to make sure we have a challenge IE */
data = (u8 *)auth->info_element;
- if(*data++ != MFIE_TYPE_CHALLENGE){
+ if (*data++ != MFIE_TYPE_CHALLENGE) {
printkl(KERN_NOTICE PFX "Shared Key Authentication failed due to a missing challenge.\n");
break;
}
/* Save the challenge */
spin_lock_irqsave(&mac->lock, flags);
net->challenge_len = *data++;
- if(net->challenge_len > WLAN_AUTH_CHALLENGE_LEN)
+ if (net->challenge_len > WLAN_AUTH_CHALLENGE_LEN)
net->challenge_len = WLAN_AUTH_CHALLENGE_LEN;
- if(net->challenge != NULL)
- kfree(net->challenge);
- net->challenge = kmalloc(net->challenge_len, GFP_ATOMIC);
- memcpy(net->challenge, data, net->challenge_len);
+ kfree(net->challenge);
+ net->challenge = kmemdup(data, net->challenge_len,
+ GFP_ATOMIC);
+ if (net->challenge == NULL) {
+ printkl(KERN_NOTICE PFX "Shared Key "
+ "Authentication failed due to "
+ "memory shortage.\n");
+ spin_unlock_irqrestore(&mac->lock, flags);
+ break;
+ }
aq->state = IEEE80211SOFTMAC_AUTH_SHARED_RESPONSE;
- spin_unlock_irqrestore(&mac->lock, flags);
- /* Send our response */
- ieee80211softmac_send_mgt_frame(mac, aq->net, IEEE80211_STYPE_AUTH, aq->state);
+ /* We reuse the work struct from the auth request here.
+ * It is safe to do so as each one is per-request, and
+ * at this point (dealing with authentication response)
+ * we have obviously already sent the initial auth
+ * request. */
+ cancel_delayed_work(&aq->work);
+ INIT_WORK(&aq->work, &ieee80211softmac_auth_challenge_response, (void *)aq);
+ schedule_work(&aq->work);
+ spin_unlock_irqrestore(&mac->lock, flags);
return 0;
case IEEE80211SOFTMAC_AUTH_SHARED_PASS:
kfree(net->challenge);
/* Make sure the network is authenticated */
if (!net->authenticated)
{
- printkl(KERN_DEBUG PFX "Can't send deauthentication packet, network is not authenticated.\n");
+ dprintkl(KERN_DEBUG PFX "Can't send deauthentication packet, network is not authenticated.\n");
/* Error okay? */
return -EPERM;
}
net = ieee80211softmac_get_network_by_bssid(mac, deauth->header.addr2);
if (net == NULL) {
- printkl(KERN_DEBUG PFX "Received deauthentication packet from "MAC_FMT", but that network is unknown.\n",
+ dprintkl(KERN_DEBUG PFX "Received deauthentication packet from "MAC_FMT", but that network is unknown.\n",
MAC_ARG(deauth->header.addr2));
return 0;
}
/* Make sure the network is authenticated */
if(!net->authenticated)
{
- printkl(KERN_DEBUG PFX "Can't perform deauthentication, network is not authenticated.\n");
+ dprintkl(KERN_DEBUG PFX "Can't perform deauthentication, network is not authenticated.\n");
/* Error okay? */
return -EPERM;
}