5 files changed, 51 insertions, 29 deletions

diff --git a/include/net/ieee80211.h b/include/net/ieee80211.h
index 293e920ca59d..d5147770ad47 100644
--- a/include/net/ieee80211.h
+++ b/include/net/ieee80211.h
@@ -1247,7 +1247,8 @@ extern int ieee80211_set_encryption(struct ieee80211_device *ieee);
 extern int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev);
 extern void ieee80211_txb_free(struct ieee80211_txb *);
 extern int ieee80211_tx_frame(struct ieee80211_device *ieee,
-                              struct ieee80211_hdr *frame, int len);
+                              struct ieee80211_hdr *frame, int hdr_len,
+                              int total_len, int encrypt_mpdu);
 
 /* ieee80211_rx.c */
 extern int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
diff --git a/net/ieee80211/ieee80211_tx.c b/net/ieee80211/ieee80211_tx.c
index 233d527c6953..6a5de1b84459 100644
--- a/net/ieee80211/ieee80211_tx.c
+++ b/net/ieee80211/ieee80211_tx.c
@@ -555,7 +555,8 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
 /* Incoming 802.11 strucure is converted to a TXB
  * a block of 802.11 fragment packets (stored as skbs) */
 int ieee80211_tx_frame(struct ieee80211_device *ieee,
-                       struct ieee80211_hdr *frame, int len)
+                       struct ieee80211_hdr *frame, int hdr_len, int total_len,
+                       int encrypt_mpdu)
 {
         struct ieee80211_txb *txb = NULL;
         unsigned long flags;
@@ -565,6 +566,9 @@ int ieee80211_tx_frame(struct ieee80211_device *ieee,
 
         spin_lock_irqsave(&ieee->lock, flags);
 
+        if (encrypt_mpdu && !ieee->sec.encrypt)
+                encrypt_mpdu = 0;
+
         /* If there is no driver handler to take the TXB, dont' bother
          * creating it... */
         if (!ieee->hard_start_xmit) {
@@ -572,32 +576,41 @@ int ieee80211_tx_frame(struct ieee80211_device *ieee,
                 goto success;
         }
 
-        if (unlikely(len < 24)) {
+        if (unlikely(total_len < 24)) {
                 printk(KERN_WARNING "%s: skb too small (%d).\n",
-                       ieee->dev->name, len);
+                       ieee->dev->name, total_len);
                 goto success;
         }
 
+        if (encrypt_mpdu)
+                frame->frame_ctl |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
+
         /* When we allocate the TXB we allocate enough space for the reserve
          * and full fragment bytes (bytes_per_frag doesn't include prefix,
          * postfix, header, FCS, etc.) */
-        txb = ieee80211_alloc_txb(1, len, ieee->tx_headroom, GFP_ATOMIC);
+        txb = ieee80211_alloc_txb(1, total_len, ieee->tx_headroom, GFP_ATOMIC);
         if (unlikely(!txb)) {
                 printk(KERN_WARNING "%s: Could not allocate TXB\n",
                        ieee->dev->name);
                 goto failed;
         }
         txb->encrypted = 0;
-        txb->payload_size = len;
+        txb->payload_size = total_len;
 
         skb_frag = txb->fragments[0];
 
-        memcpy(skb_put(skb_frag, len), frame, len);
+        memcpy(skb_put(skb_frag, total_len), frame, total_len);
 
         if (ieee->config &
             (CFG_IEEE80211_COMPUTE_FCS | CFG_IEEE80211_RESERVE_FCS))
                 skb_put(skb_frag, 4);
 
+        /* To avoid overcomplicating things, we do the corner-case frame
+         * encryption in software. The only real situation where encryption is
+         * needed here is during software-based shared key authentication. */
+        if (encrypt_mpdu)
+                ieee80211_encrypt_fragment(ieee, skb_frag, hdr_len);
+
       success:
         spin_unlock_irqrestore(&ieee->lock, flags);
 
diff --git a/net/ieee80211/softmac/Kconfig b/net/ieee80211/softmac/Kconfig
index f2a27cc6ecb1..2811651cb134 100644
--- a/net/ieee80211/softmac/Kconfig
+++ b/net/ieee80211/softmac/Kconfig
@@ -2,6 +2,7 @@ config IEEE80211_SOFTMAC
         tristate "Software MAC add-on to the IEEE 802.11 networking stack"
         depends on IEEE80211 && EXPERIMENTAL
         select WIRELESS_EXT
+        select IEEE80211_CRYPT_WEP
         ---help---
         This option enables the hardware independent software MAC addon
         for the IEEE 802.11 networking stack.
diff --git a/net/ieee80211/softmac/ieee80211softmac_auth.c b/net/ieee80211/softmac/ieee80211softmac_auth.c
index 084b6211f293..90b8484e509b 100644
--- a/net/ieee80211/softmac/ieee80211softmac_auth.c
+++ b/net/ieee80211/softmac/ieee80211softmac_auth.c
@@ -107,6 +107,7 @@ ieee80211softmac_auth_queue(void *data)
         printkl(KERN_WARNING PFX "Authentication timed out with "MAC_FMT"\n", MAC_ARG(net->bssid));
         /* Remove this item from the queue */
         spin_lock_irqsave(&mac->lock, flags);
+        net->authenticating = 0;
         ieee80211softmac_call_events_locked(mac, IEEE80211SOFTMAC_EVENT_AUTH_TIMEOUT, net);
         cancel_delayed_work(&auth->work); /* just to make sure... */
         list_del(&auth->list);
@@ -212,13 +213,13 @@ ieee80211softmac_auth_resp(struct net_device *dev, struct ieee80211_auth *auth)
                         aq->state = IEEE80211SOFTMAC_AUTH_SHARED_RESPONSE; 
                         spin_unlock_irqrestore(&mac->lock, flags);
 
-                        /* Switch to correct channel for this network */
-                        mac->set_channel(mac->dev, net->channel);
-                        
-                        /* Send our response (How to encrypt?) */
+                        /* Send our response */
                         ieee80211softmac_send_mgt_frame(mac, aq->net, IEEE80211_STYPE_AUTH, aq->state);
-                        break;
+                        return 0;
                 case IEEE80211SOFTMAC_AUTH_SHARED_PASS:
+                        kfree(net->challenge);
+                        net->challenge = NULL;
+                        net->challenge_len = 0;
                         /* Check the status code of the response */
                         switch(auth->status) {
                         case WLAN_STATUS_SUCCESS:
@@ -229,6 +230,7 @@ ieee80211softmac_auth_resp(struct net_device *dev, struct ieee80211_auth *auth)
                                 spin_unlock_irqrestore(&mac->lock, flags);
                                 printkl(KERN_NOTICE PFX "Shared Key Authentication completed with "MAC_FMT"\n", 
                                         MAC_ARG(net->bssid));
+                                ieee80211softmac_call_events(mac, IEEE80211SOFTMAC_EVENT_AUTHENTICATED, net);
                                 break;
                         default:
                                 printkl(KERN_NOTICE PFX "Shared Key Authentication with "MAC_FMT" failed, error code: %i\n", 
diff --git a/net/ieee80211/softmac/ieee80211softmac_io.c b/net/ieee80211/softmac/ieee80211softmac_io.c
index 7b9e78d39598..44f51175a2fc 100644
--- a/net/ieee80211/softmac/ieee80211softmac_io.c
+++ b/net/ieee80211/softmac/ieee80211softmac_io.c
@@ -268,26 +268,27 @@ ieee80211softmac_reassoc_req(struct ieee80211_reassoc_request **pkt,
 static u32
 ieee80211softmac_auth(struct ieee80211_auth **pkt, 
         struct ieee80211softmac_device *mac, struct ieee80211softmac_network *net,
-        u16 transaction, u16 status)
+        u16 transaction, u16 status, int *encrypt_mpdu)
 {
         u8 *data;
+        int auth_mode = mac->ieee->sec.auth_mode;
+        int is_shared_response = (auth_mode == WLAN_AUTH_SHARED_KEY
+                && transaction == IEEE80211SOFTMAC_AUTH_SHARED_RESPONSE);
+
         /* Allocate Packet */
         (*pkt) = (struct ieee80211_auth *)ieee80211softmac_alloc_mgt(
                 2 +             /* Auth Algorithm */
                 2 +             /* Auth Transaction Seq */
                 2 +             /* Status Code */
                  /* Challenge Text IE */
-                mac->ieee->open_wep ? 0 : 
-                1 + 1 + WLAN_AUTH_CHALLENGE_LEN
-        );      
+                is_shared_response ? 0 : 1 + 1 + net->challenge_len
+        );
         if (unlikely((*pkt) == NULL))
                 return 0;
         ieee80211softmac_hdr_3addr(mac, &((*pkt)->header), IEEE80211_STYPE_AUTH, net->bssid, net->bssid);
                 
         /* Algorithm */
-        (*pkt)->algorithm = mac->ieee->open_wep ? 
-                cpu_to_le16(WLAN_AUTH_OPEN) :
-                cpu_to_le16(WLAN_AUTH_SHARED_KEY);
+        (*pkt)->algorithm = cpu_to_le16(auth_mode);
         /* Transaction */
         (*pkt)->transaction = cpu_to_le16(transaction);
         /* Status */
@@ -295,18 +296,20 @@ ieee80211softmac_auth(struct ieee80211_auth **pkt,
         
         data = (u8 *)(*pkt)->info_element;
         /* Challenge Text */
-        if(!mac->ieee->open_wep){
+        if (is_shared_response) {
                 *data = MFIE_TYPE_CHALLENGE;
                 data++;
                 
                 /* Copy the challenge in */
-                // *data = challenge length
-                // data += sizeof(u16);
-                // memcpy(data, challenge, challenge length);
-                // data += challenge length;
-                
-                /* Add the full size to the packet length */
-        }
+                *data = net->challenge_len;
+                data++;
+                memcpy(data, net->challenge, net->challenge_len);
+                data += net->challenge_len;
+
+                /* Make sure this frame gets encrypted with the shared key */
+                *encrypt_mpdu = 1;
+        } else
+                *encrypt_mpdu = 0;
 
         /* Return the packet size */
         return (data - (u8 *)(*pkt));
@@ -396,6 +399,7 @@ ieee80211softmac_send_mgt_frame(struct ieee80211softmac_device *mac,
 {
         void *pkt = NULL;
         u32 pkt_size = 0;
+        int encrypt_mpdu = 0;
 
         switch(type) {
         case IEEE80211_STYPE_ASSOC_REQ:
@@ -405,7 +409,7 @@ ieee80211softmac_send_mgt_frame(struct ieee80211softmac_device *mac,
                 pkt_size = ieee80211softmac_reassoc_req((struct ieee80211_reassoc_request **)(&pkt), mac, (struct ieee80211softmac_network *)ptrarg);
                 break;
         case IEEE80211_STYPE_AUTH:
-                pkt_size = ieee80211softmac_auth((struct ieee80211_auth **)(&pkt), mac, (struct ieee80211softmac_network *)ptrarg, (u16)(arg & 0xFFFF), (u16) (arg >> 16));
+                pkt_size = ieee80211softmac_auth((struct ieee80211_auth **)(&pkt), mac, (struct ieee80211softmac_network *)ptrarg, (u16)(arg & 0xFFFF), (u16) (arg >> 16), &encrypt_mpdu);
                 break;
         case IEEE80211_STYPE_DISASSOC:
         case IEEE80211_STYPE_DEAUTH:
@@ -434,7 +438,8 @@ ieee80211softmac_send_mgt_frame(struct ieee80211softmac_device *mac,
          * or get rid of it alltogether?
          * Does this work for you now?
          */
-        ieee80211_tx_frame(mac->ieee, (struct ieee80211_hdr *)pkt, pkt_size);
+        ieee80211_tx_frame(mac->ieee, (struct ieee80211_hdr *)pkt,
+                IEEE80211_3ADDR_LEN, pkt_size, encrypt_mpdu);
 
         kfree(pkt);
         return 0;