Changes between Version 15 and Version 16 of HowTo/bssidFix

Timestamp:

Aug 28, 2006, 9:45:06 PM (19 years ago)

Author:

einar

Comment:

Change required to madwifi-0.9.2 driver.

HowTo/bssidFix

@@ -62 +62 @@
 
 These instructions should be fairly similar for future version of madwifi. Look for where a node picks what bssid it wants to use (usually in create_ibss or similar), and then find that function where the node determines that it's in adhoc mode.
+
+
+== madwifi.0.9.2 hack ==
+
+In case you're using a more recent madwifi driver, the following might help. 
+Assuming you've unpacked madwifi-0.9.2.tar.gz in your home directory, the file is:
+{{{
+~/madwifi-0.9.2/net80211/ieee80211_node.c
+}}}
+The change is roughly on line 305; before:
+
+{{{
+   if (vap->iv_opmode == IEEE80211_M_IBSS) {
+                vap->iv_flags |= IEEE80211_F_SIBSS;
+                ni->ni_capinfo |= IEEE80211_CAPINFO_IBSS;       /* XXX */
+                if (vap->iv_flags & IEEE80211_F_DESBSSID)
+                        IEEE80211_ADDR_COPY(ni->ni_bssid, vap->iv_des_bssid);
+                else
+                        ni->ni_bssid[0] |= 0x02;        /* local bit for IBSS */
+        }
+}}}
+
+After:
+
+{{{
+    if (vap->iv_opmode == IEEE80211_M_IBSS) {
+                int i;
+                vap->iv_flags |= IEEE80211_F_SIBSS;
+                ni->ni_capinfo |= IEEE80211_CAPINFO_IBSS;       /* XXX */
+                if (vap->iv_flags & IEEE80211_F_DESBSSID)
+                        IEEE80211_ADDR_COPY(ni->ni_bssid, vap->iv_des_bssid);
+                else
+                        ni->ni_bssid[0] |= 0x02;        /* local bit for IBSS */
+                for(i=0; i<IEEE80211_ADDR_LEN;i++){
+                    ni->ni_bssid[i] = ni->ni_essid[i % ni->ni_esslen];
+                }
+        }
+}}}
+
+then simply make and copy the new modules as above.
+