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authorFelix Fietkau <nbd@openwrt.org>2008-11-14 23:35:12 +0000
committerFelix Fietkau <nbd@openwrt.org>2008-11-14 23:35:12 +0000
commitdb2352a922cbbe94f258a2e91d82fd7ec7fda822 (patch)
tree2f1ca252ad9fe2459d2f9e52ad24f116fd49a905 /package/madwifi/patches/388-apsta_fix.patch
parent38660ed491006805437ff18cf0b432b5fe1faf4b (diff)
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madwifi: ap+sta race conditions
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13208 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'package/madwifi/patches/388-apsta_fix.patch')
-rw-r--r--package/madwifi/patches/388-apsta_fix.patch60
1 files changed, 60 insertions, 0 deletions
diff --git a/package/madwifi/patches/388-apsta_fix.patch b/package/madwifi/patches/388-apsta_fix.patch
new file mode 100644
index 0000000000..4952dd8913
--- /dev/null
+++ b/package/madwifi/patches/388-apsta_fix.patch
@@ -0,0 +1,60 @@
+--- a/net80211/ieee80211_proto.c
++++ b/net80211/ieee80211_proto.c
+@@ -1406,7 +1406,8 @@ __ieee80211_newstate(struct ieee80211vap
+ vap->iv_state = nstate; /* state transition */
+ del_timer(&vap->iv_mgtsend);
+ if ((vap->iv_opmode != IEEE80211_M_HOSTAP) &&
+- (ostate != IEEE80211_S_SCAN))
++ (ostate != IEEE80211_S_SCAN) &&
++ !(vap->iv_flags_ext & IEEE80211_FEXT_SCAN_PENDING))
+ ieee80211_cancel_scan(vap); /* background scan */
+ ni = vap->iv_bss; /* NB: no reference held */
+ switch (nstate) {
+@@ -1448,7 +1449,8 @@ __ieee80211_newstate(struct ieee80211vap
+ }
+ goto reset;
+ case IEEE80211_S_SCAN:
+- ieee80211_cancel_scan(vap);
++ if (!(vap->iv_flags_ext & IEEE80211_FEXT_SCAN_PENDING))
++ ieee80211_cancel_scan(vap);
+ goto reset;
+ reset:
+ ieee80211_reset_bss(vap);
+@@ -1985,7 +1987,9 @@ ieee80211_newstate(struct ieee80211vap *
+ }
+ }
+ }
+- } else if (dstate == IEEE80211_S_SCAN) {
++ } else if ((dstate == IEEE80211_S_SCAN) ||
++ (dstate == IEEE80211_S_AUTH) ||
++ (dstate == IEEE80211_S_ASSOC)) {
+ /* Force to scan pending... someone is scanning */
+ vap->iv_flags_ext |= IEEE80211_FEXT_SCAN_PENDING;
+ __ieee80211_newstate(vap, IEEE80211_S_INIT, arg);
+--- a/net80211/ieee80211_output.c
++++ b/net80211/ieee80211_output.c
+@@ -238,7 +238,9 @@ ieee80211_hardstart(struct sk_buff *skb,
+ }
+
+ /* Cancel any running BG scan */
+- if (!(ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN_THR) && (vap->iv_state == IEEE80211_S_RUN))
++ if (!(ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN_THR) &&
++ (vap->iv_state == IEEE80211_S_RUN) &&
++ (ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN))
+ ieee80211_cancel_scan(vap);
+
+ /*
+--- a/net80211/ieee80211_wireless.c
++++ b/net80211/ieee80211_wireless.c
+@@ -2728,9 +2728,9 @@ ieee80211_ioctl_setparam(struct net_devi
+ return -EINVAL;
+ vap->iv_flags |= IEEE80211_F_BGSCAN;
+ } else {
+- /* XXX racey? */
++ if (ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN)
++ ieee80211_cancel_scan(vap); /* anything current */
+ vap->iv_flags &= ~IEEE80211_F_BGSCAN;
+- ieee80211_cancel_scan(vap); /* anything current */
+ }
+ break;
+ case IEEE80211_PARAM_BGSCAN_IDLE: