diff options
| author | nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2008-07-12 22:23:46 +0000 |
|---|---|---|
| committer | nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2008-07-12 22:23:46 +0000 |
| commit | ff6f490212293226512be1b72de70905a8f4ba47 (patch) | |
| tree | 04cc91050233aac6e646d09c14b2e6b509c6b707 | |
| parent | 941864737e10c281bade110ee7937f9f866b4bb6 (diff) | |
madwifi: recognize hidden essid with length=1 containing a nullbyte
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@11793 3c298f89-4303-0410-b956-a3cf2f4a3e73
| -rw-r--r-- | package/madwifi/patches/356-hidden_ssid.patch | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/package/madwifi/patches/356-hidden_ssid.patch b/package/madwifi/patches/356-hidden_ssid.patch new file mode 100644 index 000000000..92d0480d2 --- /dev/null +++ b/package/madwifi/patches/356-hidden_ssid.patch @@ -0,0 +1,38 @@ +This patch fixes the detection of hidden SSIDs as transmitted +by some cisco systems. + +Signed-off-by: Felix Fietkau <nbd@openwrt.org> + +--- a/net80211/ieee80211_scan_sta.c ++++ b/net80211/ieee80211_scan_sta.c +@@ -209,6 +209,19 @@ + ieee80211_saveie(iep, ie); + } + ++ ++static inline int is_empty_ssid(u_int8_t *ssid) ++{ ++ if (!ssid) ++ return 1; ++ if (ssid[1] == 0) ++ return 1; ++ if ((ssid[1] == 1) && (ssid[2] == 0)) ++ return 1; ++ return 0; ++} ++ ++ + /* + * Process a beacon or probe response frame; create an + * entry in the scan cache or update any previous entry. +@@ -252,8 +265,8 @@ + ise = &se->base; + + /* XXX ap beaconing multiple ssid w/ same bssid */ +- if (sp->ssid[1] != 0 && +- (ISPROBE(subtype) || ise->se_ssid[1] == 0)) ++ if (!is_empty_ssid(sp->ssid) && ++ (ISPROBE(subtype) || is_empty_ssid(ise->se_ssid))) + memcpy(ise->se_ssid, sp->ssid, 2 + sp->ssid[1]); + + memcpy(ise->se_rates, sp->rates, |