madwifi: add some roaming fixes by ubnt

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@11927 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/madwifi/patches/367-roaming.patch b/package/madwifi/patches/367-roaming.patch
new file mode 100644 (file)
index 0000000..a8af671
--- /dev/null
+++ b/package/madwifi/patches/367-roaming.patch
@@ -0,0 +1,77 @@
+Patch adapted from ubnt madwifi patchset
+
+--- a/net80211/ieee80211_node.c
++++ b/net80211/ieee80211_node.c
+@@ -659,7 +659,7 @@
+                */
+               if (canreassoc) {
+                       vap->iv_nsparams.newstate = IEEE80211_S_ASSOC;
+-                      vap->iv_nsparams.arg = 0;
++                      vap->iv_nsparams.arg = IEEE80211_FC0_SUBTYPE_REASSOC_REQ;
+                       IEEE80211_SCHEDULE_TQUEUE(&vap->iv_stajoin1tq);
+               } else {
+                       vap->iv_nsparams.newstate = IEEE80211_S_AUTH;
+--- a/net80211/ieee80211_scan_sta.c
++++ b/net80211/ieee80211_scan_sta.c
+@@ -748,14 +748,17 @@
+  * a reference to an entry w/o holding the lock on the table.
+  */
+ static struct sta_entry *
+-sta_lookup(struct sta_table *st, const u_int8_t macaddr[IEEE80211_ADDR_LEN])
++sta_lookup(struct sta_table *st, const u_int8_t macaddr[IEEE80211_ADDR_LEN], struct ieee80211_scan_ssid* essid)
+ {
+       struct sta_entry *se;
+       int hash = STA_HASH(macaddr);
+ 
+       SCAN_STA_LOCK_IRQ(st);
+       LIST_FOREACH(se, &st->st_hash[hash], se_hash)
+-              if (IEEE80211_ADDR_EQ(se->base.se_macaddr, macaddr))
++              if (IEEE80211_ADDR_EQ(se->base.se_macaddr, macaddr) &&
++                  (essid->len == se->base.se_ssid[1] &&
++                   !memcmp(se->base.se_ssid+2, essid->ssid,
++                           se->base.se_ssid[1])))
+                       break;
+       SCAN_STA_UNLOCK_IRQ(st);
+ 
+@@ -772,7 +775,7 @@
+       u_int8_t roamRate, curRate;
+       int8_t roamRssi, curRssi;
+ 
+-      se = sta_lookup(st, ni->ni_macaddr);
++      se = sta_lookup(st, ni->ni_macaddr, ss->ss_ssid);
+       if (se == NULL) {
+               /* XXX something is wrong */
+               return;
+@@ -866,8 +869,8 @@
+        */
+       KASSERT(vap->iv_opmode == IEEE80211_M_STA,
+               ("wrong mode %u", vap->iv_opmode));
+-      /* XXX turn this off until the ap release is cut */
+-      if (0 && vap->iv_ic->ic_roaming == IEEE80211_ROAMING_AUTO &&
++      if (vap->iv_opmode == IEEE80211_M_STA &&
++          vap->iv_ic->ic_roaming == IEEE80211_ROAMING_AUTO &&
+           vap->iv_state >= IEEE80211_S_RUN)
+               /* XXX vap is implicit */
+               sta_roam_check(ss, vap);
+@@ -922,7 +925,11 @@
+       struct sta_table *st = ss->ss_priv;
+       struct sta_entry *se;
+ 
+-      se = sta_lookup(st, macaddr);
++      /* Let outside apps to decide what peer is blacklisted */
++      if (ss->ss_vap->iv_ic->ic_roaming == IEEE80211_ROAMING_MANUAL)
++              return;
++
++      se = sta_lookup(st, macaddr, ss->ss_ssid);
+       if (se != NULL) {
+               se->se_fails++;
+               se->se_lastfail = jiffies;
+@@ -939,7 +946,7 @@
+       struct sta_table *st = ss->ss_priv;
+       struct sta_entry *se;
+ 
+-      se = sta_lookup(st, macaddr);
++      se = sta_lookup(st, macaddr, ss->ss_ssid);
+       if (se != NULL) {
+ #if 0
+               se->se_fails = 0;