From f27b62d3e7ecca42a75f1c5d3cc225539301ba6d Mon Sep 17 00:00:00 2001 From: Daniel Drake Date: Fri, 27 Jul 2007 15:43:24 +0200 Subject: [PATCH] [PATCH] mac80211: don't allow scanning in monitor mode zd1211rw gets confused when the user asks for a scan when the device is in monitor mode. This patch tightens up the SIWSCAN handler to deny the scan under these conditions. Signed-off-by: Daniel Drake Signed-off-by: Jiri Benc Signed-off-by: John W. Linville --- net/mac80211/ieee80211_ioctl.c | 19 +++++++++++++------ 1 file changed, 13 insertions(+), 6 deletions(-) diff --git a/net/mac80211/ieee80211_ioctl.c b/net/mac80211/ieee80211_ioctl.c index d0e1ab5589db..e7904db55325 100644 --- a/net/mac80211/ieee80211_ioctl.c +++ b/net/mac80211/ieee80211_ioctl.c @@ -697,17 +697,24 @@ static int ieee80211_ioctl_siwscan(struct net_device *dev, if (!netif_running(dev)) return -ENETDOWN; - if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID) { - if (sdata->type == IEEE80211_IF_TYPE_STA || - sdata->type == IEEE80211_IF_TYPE_IBSS) { + switch (sdata->type) { + case IEEE80211_IF_TYPE_STA: + case IEEE80211_IF_TYPE_IBSS: + if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID) { ssid = sdata->u.sta.ssid; ssid_len = sdata->u.sta.ssid_len; - } else if (sdata->type == IEEE80211_IF_TYPE_AP) { + } + break; + case IEEE80211_IF_TYPE_AP: + if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID) { ssid = sdata->u.ap.ssid; ssid_len = sdata->u.ap.ssid_len; - } else - return -EINVAL; + } + break; + default: + return -EOPNOTSUPP; } + return ieee80211_sta_req_scan(dev, ssid, ssid_len); }