From 5c95b940bd97e744267249e3b0780e6ef04b029c Mon Sep 17 00:00:00 2001 From: Antonio Quartulli Date: Tue, 16 Oct 2012 08:39:22 +0200 Subject: nl/cfg80211: force scan using an AP vif if requested If the user wants to scan using a vif configured as AP, cfg80211 must give him a chance to do it, even if this will disrupt the stations performance due to off-channel scanning. To do so, this patch adds a 'force' flag to the SCAN_TRIGGER command which tells cfg80211 to perform the scanning operation even if the vif is an AP and the beaconing has already started. Signed-off-by: Antonio Quartulli Signed-off-by: Johannes Berg --- include/uapi/linux/nl80211.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index 0e6277a06c29..617d0fbfc96f 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -3050,6 +3050,7 @@ enum nl80211_ap_sme_features { * mode * @NL80211_FEATURE_LOW_PRIORITY_SCAN: This driver supports low priority scan * @NL80211_FEATURE_SCAN_FLUSH: Scan flush is supported + * @NL80211_FEATURE_AP_SCAN: Support scanning using an AP vif */ enum nl80211_feature_flags { NL80211_FEATURE_SK_TX_STATUS = 1 << 0, @@ -3060,6 +3061,7 @@ enum nl80211_feature_flags { NL80211_FEATURE_SAE = 1 << 5, NL80211_FEATURE_LOW_PRIORITY_SCAN = 1 << 6, NL80211_FEATURE_SCAN_FLUSH = 1 << 7, + NL80211_FEATURE_AP_SCAN = 1 << 8, }; /** @@ -3103,10 +3105,16 @@ enum nl80211_connect_failed_reason { * * @NL80211_SCAN_FLAG_LOW_PRIORITY: scan request has low priority * @NL80211_SCAN_FLAG_FLUSH: flush cache before scanning + * @NL80211_SCAN_FLAG_AP: force a scan even if the interface is configured + * as AP and the beaconing has already been configured. This attribute is + * dangerous because will destroy stations performance as a lot of frames + * will be lost while scanning off-channel, therefore it must be used only + * when really needed */ enum nl80211_scan_flags { NL80211_SCAN_FLAG_LOW_PRIORITY = 1<<0, NL80211_SCAN_FLAG_FLUSH = 1<<1, + NL80211_SCAN_FLAG_AP = 1<<2, }; #endif /* __LINUX_NL80211_H */ -- cgit v1.2.3