mac80211: clean up eapol frame handling/port control

This cleans up the eapol frame handling and some related code in the
receive and transmit paths. After this patch
 * EAPOL frames addressed to us or the EAPOL group address are
   always accepted regardless of whether they are encrypted or not
 * other frames from a station are dropped if PAE is enabled and
   the station is not authorized
 * unencrypted frames (except the EAPOL frames above) are dropped if
   drop_unencrypted is enabled
 * some superfluous code that eth_type_trans handles anyway is gone
 * port control is done for transmitted packets

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 9 insertions, 18 deletions

diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index f0e6ab7eb624..bf715d28643b 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -91,8 +91,7 @@ static const struct file_operations name##_ops = {			\
 /* common attributes */
 IEEE80211_IF_FILE(channel_use, channel_use, DEC);
 IEEE80211_IF_FILE(drop_unencrypted, drop_unencrypted, DEC);
-IEEE80211_IF_FILE(eapol, eapol, DEC);
-IEEE80211_IF_FILE(ieee8021_x, ieee802_1x, DEC);
+IEEE80211_IF_FILE(ieee802_1x_pac, ieee802_1x_pac, DEC);
 
 /* STA/IBSS attributes */
 IEEE80211_IF_FILE(state, u.sta.state, DEC);
@@ -170,8 +169,7 @@ static void add_sta_files(struct ieee80211_sub_if_data *sdata)
 {
 	DEBUGFS_ADD(channel_use, sta);
 	DEBUGFS_ADD(drop_unencrypted, sta);
-	DEBUGFS_ADD(eapol, sta);
-	DEBUGFS_ADD(ieee8021_x, sta);
+	DEBUGFS_ADD(ieee802_1x_pac, sta);
 	DEBUGFS_ADD(state, sta);
 	DEBUGFS_ADD(bssid, sta);
 	DEBUGFS_ADD(prev_bssid, sta);
@@ -192,8 +190,7 @@ static void add_ap_files(struct ieee80211_sub_if_data *sdata)
 {
 	DEBUGFS_ADD(channel_use, ap);
 	DEBUGFS_ADD(drop_unencrypted, ap);
-	DEBUGFS_ADD(eapol, ap);
-	DEBUGFS_ADD(ieee8021_x, ap);
+	DEBUGFS_ADD(ieee802_1x_pac, ap);
 	DEBUGFS_ADD(num_sta_ps, ap);
 	DEBUGFS_ADD(dtim_period, ap);
 	DEBUGFS_ADD(dtim_count, ap);
@@ -209,8 +206,7 @@ static void add_wds_files(struct ieee80211_sub_if_data *sdata)
 {
 	DEBUGFS_ADD(channel_use, wds);
 	DEBUGFS_ADD(drop_unencrypted, wds);
-	DEBUGFS_ADD(eapol, wds);
-	DEBUGFS_ADD(ieee8021_x, wds);
+	DEBUGFS_ADD(ieee802_1x_pac, wds);
 	DEBUGFS_ADD(peer, wds);
 }
 
@@ -218,8 +214,7 @@ static void add_vlan_files(struct ieee80211_sub_if_data *sdata)
 {
 	DEBUGFS_ADD(channel_use, vlan);
 	DEBUGFS_ADD(drop_unencrypted, vlan);
-	DEBUGFS_ADD(eapol, vlan);
-	DEBUGFS_ADD(ieee8021_x, vlan);
+	DEBUGFS_ADD(ieee802_1x_pac, vlan);
 }
 
 static void add_monitor_files(struct ieee80211_sub_if_data *sdata)
@@ -263,8 +258,7 @@ static void del_sta_files(struct ieee80211_sub_if_data *sdata)
 {
 	DEBUGFS_DEL(channel_use, sta);
 	DEBUGFS_DEL(drop_unencrypted, sta);
-	DEBUGFS_DEL(eapol, sta);
-	DEBUGFS_DEL(ieee8021_x, sta);
+	DEBUGFS_DEL(ieee802_1x_pac, sta);
 	DEBUGFS_DEL(state, sta);
 	DEBUGFS_DEL(bssid, sta);
 	DEBUGFS_DEL(prev_bssid, sta);
@@ -285,8 +279,7 @@ static void del_ap_files(struct ieee80211_sub_if_data *sdata)
 {
 	DEBUGFS_DEL(channel_use, ap);
 	DEBUGFS_DEL(drop_unencrypted, ap);
-	DEBUGFS_DEL(eapol, ap);
-	DEBUGFS_DEL(ieee8021_x, ap);
+	DEBUGFS_DEL(ieee802_1x_pac, ap);
 	DEBUGFS_DEL(num_sta_ps, ap);
 	DEBUGFS_DEL(dtim_period, ap);
 	DEBUGFS_DEL(dtim_count, ap);
@@ -302,8 +295,7 @@ static void del_wds_files(struct ieee80211_sub_if_data *sdata)
 {
 	DEBUGFS_DEL(channel_use, wds);
 	DEBUGFS_DEL(drop_unencrypted, wds);
-	DEBUGFS_DEL(eapol, wds);
-	DEBUGFS_DEL(ieee8021_x, wds);
+	DEBUGFS_DEL(ieee802_1x_pac, wds);
 	DEBUGFS_DEL(peer, wds);
 }
 
@@ -311,8 +303,7 @@ static void del_vlan_files(struct ieee80211_sub_if_data *sdata)
 {
 	DEBUGFS_DEL(channel_use, vlan);
 	DEBUGFS_DEL(drop_unencrypted, vlan);
-	DEBUGFS_DEL(eapol, vlan);
-	DEBUGFS_DEL(ieee8021_x, vlan);
+	DEBUGFS_DEL(ieee802_1x_pac, vlan);
 }
 
 static void del_monitor_files(struct ieee80211_sub_if_data *sdata)