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| author | Felix Fietkau <nbd@openwrt.org> | 2008-07-12 22:23:46 +0000 |
|---|---|---|
| committer | Felix Fietkau <nbd@openwrt.org> | 2008-07-12 22:23:46 +0000 |
| commit | 53bbcb6ad46fee23dbaae794ba7a7a30f6296d78 (patch) | |
| tree | 264b90ac1e13731e020c9b693ab8a3682db88af1 | |
| parent | 59373f6fda811a65fc4d218ebb9ecaf5d4d5b4ac (diff) | |
| download | mtk-20170518-53bbcb6ad46fee23dbaae794ba7a7a30f6296d78.zip mtk-20170518-53bbcb6ad46fee23dbaae794ba7a7a30f6296d78.tar.gz mtk-20170518-53bbcb6ad46fee23dbaae794ba7a7a30f6296d78.tar.bz2 | |
madwifi: recognize hidden essid with length=1 containing a nullbyte
SVN-Revision: 11793
| -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 0000000..92d0480 --- /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, |