From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mx1.redhat.com ([209.132.183.28]:18107 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755697Ab3EQLl2 (ORCPT ); Fri, 17 May 2013 07:41:28 -0400 Date: Fri, 17 May 2013 13:43:04 +0200 From: Stanislaw Gruszka To: Johannes Berg Cc: linux-wireless@vger.kernel.org Subject: [PATCH 3.10] mac80211: fix direct probe auth Message-ID: <20130517114303.GB1641@redhat.com> (sfid-20130517_134147_282067_74742627) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-wireless-owner@vger.kernel.org List-ID: We send direct probe to broadcast address, as some APs do not respond to unicast PROBE frames when unassociated. Broadcast frames are not acked, so we can not use that for trigger MLME state machine, but we need to use old timeout mechanism. This fixes authentication timed out like below: [ 1024.671974] wlan6: authenticate with 54:e6:fc:98:63:fe [ 1024.694125] wlan6: direct probe to 54:e6:fc:98:63:fe (try 1/3) [ 1024.695450] wlan6: direct probe to 54:e6:fc:98:63:fe (try 2/3) [ 1024.700586] wlan6: send auth to 54:e6:fc:98:63:fe (try 3/3) [ 1024.701441] wlan6: authentication with 54:e6:fc:98:63:fe timed out With fix, we have: [ 4524.198978] wlan6: authenticate with 54:e6:fc:98:63:fe [ 4524.220692] wlan6: direct probe to 54:e6:fc:98:63:fe (try 1/3) [ 4524.421784] wlan6: send auth to 54:e6:fc:98:63:fe (try 2/3) [ 4524.423272] wlan6: authenticated [ 4524.423811] wlan6: associate with 54:e6:fc:98:63:fe (try 1/3) [ 4524.427492] wlan6: RX AssocResp from 54:e6:fc:98:63:fe (capab=0x431 status=0 aid=1) Cc: stable@vger.kernel.org # 3.9 Signed-off-by: Stanislaw Gruszka --- net/mac80211/mlme.c | 12 ++++++------ 1 files changed, 6 insertions(+), 6 deletions(-) diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 346ad4c..0a60f40 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -3182,10 +3182,6 @@ static int ieee80211_probe_auth(struct ieee80211_sub_if_data *sdata) if (WARN_ON_ONCE(!auth_data)) return -EINVAL; - if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS) - tx_flags = IEEE80211_TX_CTL_REQ_TX_STATUS | - IEEE80211_TX_INTFL_MLME_CONN_TX; - auth_data->tries++; if (auth_data->tries > IEEE80211_AUTH_MAX_TRIES) { @@ -3219,6 +3215,10 @@ static int ieee80211_probe_auth(struct ieee80211_sub_if_data *sdata) auth_data->expected_transaction = trans; } + if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS) + tx_flags = IEEE80211_TX_CTL_REQ_TX_STATUS | + IEEE80211_TX_INTFL_MLME_CONN_TX; + ieee80211_send_auth(sdata, trans, auth_data->algorithm, status, auth_data->data, auth_data->data_len, auth_data->bss->bssid, @@ -3242,12 +3242,12 @@ static int ieee80211_probe_auth(struct ieee80211_sub_if_data *sdata) * will not answer to direct packet in unassociated state. */ ieee80211_send_probe_req(sdata, NULL, ssidie + 2, ssidie[1], - NULL, 0, (u32) -1, true, tx_flags, + NULL, 0, (u32) -1, true, 0, auth_data->bss->channel, false); rcu_read_unlock(); } - if (!(local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)) { + if (tx_flags == 0) { auth_data->timeout = jiffies + IEEE80211_AUTH_TIMEOUT; ifmgd->auth_data->timeout_started = true; run_again(ifmgd, auth_data->timeout); -- 1.7.4.4