From 6042a3e3ff7943e4ff5cbcb8c223ea87337501ea Mon Sep 17 00:00:00 2001 From: Ron Rindjunsky Date: Fri, 8 Aug 2008 01:50:46 +0300 Subject: [PATCH] mac80211: change number of pre-assoc scans This patch fixes noticed problem in noisy environments of 50+ APs that scan fails to find the requested AP on first try, which leads to connection refusal. second scan has empirically proven to fix this problem in almost all cases. Signed-off-by: Ron Rindjunsky Signed-off-by: Esti Kummer Signed-off-by: Tomas Winkler Signed-off-by: John W. Linville --- net/mac80211/ieee80211_i.h | 4 +++- net/mac80211/mlme.c | 9 +++++++-- 2 files changed, 10 insertions(+), 3 deletions(-) diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 747814f319af..c6de3156930c 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -361,7 +361,9 @@ struct ieee80211_if_sta { struct sk_buff_head skb_queue; - int auth_tries, assoc_tries; + int assoc_scan_tries; /* number of scans done pre-association */ + int auth_tries; /* retries for auth req */ + int assoc_tries; /* retries for assoc req */ unsigned long request; diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index f05519d1c2c6..e821d1ac5b00 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -34,6 +34,7 @@ #include "led.h" #include "mesh.h" +#define IEEE80211_ASSOC_SCANS_MAX_TRIES 2 #define IEEE80211_AUTH_TIMEOUT (HZ / 5) #define IEEE80211_AUTH_MAX_TRIES 3 #define IEEE80211_ASSOC_TIMEOUT (HZ / 5) @@ -596,6 +597,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, { if (deauth) ifsta->auth_tries = 0; + ifsta->assoc_scan_tries = 0; ifsta->assoc_tries = 0; ieee80211_set_associated(sdata, ifsta, 0); } @@ -3405,7 +3407,9 @@ static void ieee80211_sta_reset_auth(struct ieee80211_sub_if_data *sdata, ifsta->auth_alg = WLAN_AUTH_OPEN; ifsta->auth_transaction = -1; ifsta->flags &= ~IEEE80211_STA_ASSOCIATED; - ifsta->auth_tries = ifsta->assoc_tries = 0; + ifsta->assoc_scan_tries = 0; + ifsta->auth_tries = 0; + ifsta->assoc_tries = 0; netif_carrier_off(sdata->dev); } @@ -3510,7 +3514,8 @@ static int ieee80211_sta_config_auth(struct ieee80211_sub_if_data *sdata, ieee80211_sta_reset_auth(sdata, ifsta); return 0; } else { - if (ifsta->state != IEEE80211_STA_MLME_AUTHENTICATE) { + if (ifsta->assoc_scan_tries < IEEE80211_ASSOC_SCANS_MAX_TRIES) { + ifsta->assoc_scan_tries++; if (ifsta->flags & IEEE80211_STA_AUTO_SSID_SEL) ieee80211_sta_start_scan(sdata, NULL, 0); else -- 2.11.0