libertas: Reduce the WPA key installation time (fixups)

This patch addresses comments from Dan Williams about the patch
committed as "libertas: Reduce the WPA key installation time."

Signed-off-by: Javier Cardona <javier@cozybit.com>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/libertas/dev.h b/drivers/net/wireless/libertas/dev.h
index acb889e..f6f3753 100644 (file)
--- a/drivers/net/wireless/libertas/dev.h
+++ b/drivers/net/wireless/libertas/dev.h
@@ -58,6 +58,7 @@ struct lbs_802_11_security {
        u8 WPA2enabled;
        u8 wep_enabled;
        u8 auth_mode;
+       u32 key_mgmt;
 };
 
 /** Current Basic Service Set State Structure */

diff --git a/drivers/net/wireless/libertas/wext.c b/drivers/net/wireless/libertas/wext.c
index 11297dc..6ebdd7f 100644 (file)
--- a/drivers/net/wireless/libertas/wext.c
+++ b/drivers/net/wireless/libertas/wext.c
@@ -1598,8 +1598,20 @@ static int lbs_set_encodeext(struct net_device *dev,
        }
 
 out:
-       if (ret == 0) {  /* key installation is time critical: postpone not! */
-               lbs_do_association_work(priv);
+       if (ret == 0) {
+               /* 802.1x and WPA rekeying must happen as quickly as possible,
+                * especially during the 4-way handshake; thus if in
+                * infrastructure mode, and either (a) 802.1x is enabled or
+                * (b) WPA is being used, set the key right away.
+                */
+               if (assoc_req->mode == IW_MODE_INFRA &&
+                   ((assoc_req->secinfo.key_mgmt & IW_AUTH_KEY_MGMT_802_1X) ||
+                    (assoc_req->secinfo.key_mgmt & IW_AUTH_KEY_MGMT_PSK) ||
+                     assoc_req->secinfo.WPAenabled ||
+                     assoc_req->secinfo.WPA2enabled)) {
+                       lbs_do_association_work(priv);
+               } else
+                       lbs_postpone_association_work(priv);
        } else {
                lbs_cancel_association_work(priv);
        }
@@ -1707,13 +1719,17 @@ static int lbs_set_auth(struct net_device *dev,
        case IW_AUTH_TKIP_COUNTERMEASURES:
        case IW_AUTH_CIPHER_PAIRWISE:
        case IW_AUTH_CIPHER_GROUP:
-       case IW_AUTH_KEY_MGMT:
        case IW_AUTH_DROP_UNENCRYPTED:
                /*
                 * libertas does not use these parameters
                 */
                break;
 
+       case IW_AUTH_KEY_MGMT:
+               assoc_req->secinfo.key_mgmt = dwrq->value;
+               updated = 1;
+               break;
+
        case IW_AUTH_WPA_VERSION:
                if (dwrq->value & IW_AUTH_WPA_VERSION_DISABLED) {
                        assoc_req->secinfo.WPAenabled = 0;
@@ -1793,6 +1809,10 @@ static int lbs_get_auth(struct net_device *dev,
        lbs_deb_enter(LBS_DEB_WEXT);
 
        switch (dwrq->flags & IW_AUTH_INDEX) {
+       case IW_AUTH_KEY_MGMT:
+               dwrq->value = priv->secinfo.key_mgmt;
+               break;
+
        case IW_AUTH_WPA_VERSION:
                dwrq->value = 0;
                if (priv->secinfo.WPAenabled)