fix software rx filter for ibss mode (based on a patch by harald schiöberg)

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@17220 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/madwifi/patches/442-ibss_rx_filter.patch b/package/madwifi/patches/442-ibss_rx_filter.patch
new file mode 100644 (file)
index 0000000..eaf8071
--- /dev/null
+++ b/package/madwifi/patches/442-ibss_rx_filter.patch
@@ -0,0 +1,20 @@
+--- a/net80211/ieee80211_input.c
++++ b/net80211/ieee80211_input.c
+@@ -294,6 +294,17 @@ ieee80211_input(struct ieee80211vap * va
+                       break;
+               case IEEE80211_M_IBSS:
+               case IEEE80211_M_AHDEMO:
++                      if (!IEEE80211_ADDR_EQ(wh->i_addr3, vap->iv_bssid) ||
++                          (!IEEE80211_ADDR_EQ(wh->i_addr1, vap->iv_myaddr) &&
++                           !IEEE80211_IS_MULTICAST(wh->i_addr1) &&
++                           (subtype != IEEE80211_FC0_SUBTYPE_BEACON))) {
++                              if (!(vap->iv_dev->flags & IFF_PROMISC)) {
++                                      IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT,
++                                              bssid, NULL, "%s", "not to bss");
++                                      vap->iv_stats.is_rx_wrongbss++;
++                                      goto out;
++                              }
++                      }
+                       if (dir != IEEE80211_FC1_DIR_NODS)
+                               bssid = wh->i_addr1;
+                       else if (type == IEEE80211_FC0_TYPE_CTL)