From b0140fda626e39900b8e85efefb427f18727151a Mon Sep 17 00:00:00 2001 From: Wen Gong Date: Mon, 7 Dec 2020 11:36:34 +0800 Subject: [PATCH] mac80211: mlme: save ssid info to ieee80211_bss_conf while assoc The ssid info of ieee80211_bss_conf is filled in ieee80211_start_ap() for AP mode. For STATION mode, it is empty, save the info from struct ieee80211_mgd_assoc_data, the struct ieee80211_mgd_assoc_data will be freed after assoc, so the ssid info of ieee80211_mgd_assoc_data can not access after assoc, save ssid info to ieee80211_bss_conf, then ssid info can be still access after assoc. Signed-off-by: Wen Gong Link: https://lore.kernel.org/r/1607312195-3583-2-git-send-email-wgong@codeaurora.org [reset on disassoc] Signed-off-by: Johannes Berg --- net/mac80211/mlme.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 185d3e30849b..0e4d950cf907 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -2403,6 +2403,8 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, /* clear bssid only after building the needed mgmt frames */ eth_zero_addr(ifmgd->bssid); + sdata->vif.bss_conf.ssid_len = 0; + /* remove AP and TDLS peers */ sta_info_flush(sdata); @@ -5518,6 +5520,7 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, struct ieee80211_mgd_assoc_data *assoc_data; const struct cfg80211_bss_ies *beacon_ies; struct ieee80211_supported_band *sband; + struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf; const u8 *ssidie, *ht_ie, *vht_ie; int i, err; bool override = false; @@ -5535,6 +5538,8 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, } memcpy(assoc_data->ssid, ssidie + 2, ssidie[1]); assoc_data->ssid_len = ssidie[1]; + memcpy(bss_conf->ssid, assoc_data->ssid, assoc_data->ssid_len); + bss_conf->ssid_len = assoc_data->ssid_len; rcu_read_unlock(); if (ifmgd->associated) { -- 2.11.0