From patchwork Sun Aug 26 15:34:32 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Antonio Quartulli X-Patchwork-Id: 1375391 Return-Path: X-Original-To: patchwork-linux-wireless@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork2.kernel.org (Postfix) with ESMTP id B9821E006C for ; Sun, 26 Aug 2012 15:35:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751181Ab2HZPez (ORCPT ); Sun, 26 Aug 2012 11:34:55 -0400 Received: from latitanza.investici.org ([82.94.249.234]:33176 "EHLO latitanza.investici.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751087Ab2HZPex (ORCPT ); Sun, 26 Aug 2012 11:34:53 -0400 Received: from [82.94.249.234] (latitanza [82.94.249.234]) (Authenticated sender: ordex@autistici.org) by localhost (Postfix) with ESMTPSA id DBEA4980BB; Sun, 26 Aug 2012 15:34:48 +0000 (UTC) X-DKIM: Sendmail DKIM Filter v2.8.2 latitanza.investici.org DBEA4980BB DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=autistici.org; s=stigmate; t=1345995290; bh=vNAqCXvPci6fjC1ng8dcamf9vew2AMYzKIjoLOHfEy0=; h=From:To:Cc:Subject:Date:Message-Id; b=qflQiAe1HNq/w5NXFvcyg7zI2pqP6UtyNbDztwYPO0CGWuCPl5p4WHyAN0FqmF1rq /VUIx4vAaL70NN78KHI+sa1HBeisAL+IZtqpWcUSVmM4Xs5Hd5+ccCMP/Yag2Z7G8S vtYc3H9RB2Nf14/r6alJZ21aSDxX9DQei7/vwVG8= From: Antonio Quartulli To: Johannes Berg Cc: linux-wireless@vger.kernel.org, Antonio Quartulli Subject: [PATCH 1/2] mac80211: export ieee80211_send_deauth_disassoc for usage outside of mlme.c Date: Sun, 26 Aug 2012 17:34:32 +0200 Message-Id: <1345995273-27358-1-git-send-email-ordex@autistici.org> X-Mailer: git-send-email 1.7.12 Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org ieee80211_send_deauth_disassoc() is now defined in util.c and it is available for usage in the rest of the mac80211 code. Signed-off-by: Antonio Quartulli --- net/mac80211/ieee80211_i.h | 5 ++++ net/mac80211/mlme.c | 60 ++++++++-------------------------------------- net/mac80211/util.c | 40 +++++++++++++++++++++++++++++++ 3 files changed, 55 insertions(+), 50 deletions(-) diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 204bfed..b4350b0 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -68,6 +68,8 @@ struct ieee80211_local; #define IEEE80211_DEFAULT_MAX_SP_LEN \ IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL +#define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */) + struct ieee80211_fragment_entry { unsigned long first_frag_time; unsigned int seq; @@ -1459,6 +1461,9 @@ void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, u16 transaction, u16 auth_alg, u8 *extra, size_t extra_len, const u8 *bssid, const u8 *da, const u8 *key, u8 key_len, u8 key_idx); +void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, + const u8 *bssid, u16 stype, u16 reason, + bool send_frame, u8 *frame_buf); int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer, const u8 *ie, size_t ie_len, enum ieee80211_band band, u32 rate_mask, diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index a8cf70b..35ee709 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -88,8 +88,6 @@ MODULE_PARM_DESC(probe_wait_ms, #define TMR_RUNNING_TIMER 0 #define TMR_RUNNING_CHANSW 1 -#define DEAUTH_DISASSOC_LEN (24 /* hdr */ + 2 /* reason */) - /* * All cfg80211 functions have to be called outside a locked * section so that they can acquire a lock themselves... This @@ -574,46 +572,6 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) ieee80211_tx_skb(sdata, skb); } -static void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, - const u8 *bssid, u16 stype, - u16 reason, bool send_frame, - u8 *frame_buf) -{ - struct ieee80211_local *local = sdata->local; - struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; - struct sk_buff *skb; - struct ieee80211_mgmt *mgmt = (void *)frame_buf; - - /* build frame */ - mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | stype); - mgmt->duration = 0; /* initialize only */ - mgmt->seq_ctrl = 0; /* initialize only */ - memcpy(mgmt->da, bssid, ETH_ALEN); - memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); - memcpy(mgmt->bssid, bssid, ETH_ALEN); - /* u.deauth.reason_code == u.disassoc.reason_code */ - mgmt->u.deauth.reason_code = cpu_to_le16(reason); - - if (send_frame) { - skb = dev_alloc_skb(local->hw.extra_tx_headroom + - DEAUTH_DISASSOC_LEN); - if (!skb) - return; - - skb_reserve(skb, local->hw.extra_tx_headroom); - - /* copy in frame */ - memcpy(skb_put(skb, DEAUTH_DISASSOC_LEN), - mgmt, DEAUTH_DISASSOC_LEN); - - if (!(ifmgd->flags & IEEE80211_STA_MFP_ENABLED)) - IEEE80211_SKB_CB(skb)->flags |= - IEEE80211_TX_INTFL_DONT_ENCRYPT; - - ieee80211_tx_skb(sdata, skb); - } -} - void ieee80211_send_pspoll(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata) { @@ -1696,7 +1654,7 @@ static void __ieee80211_connection_loss(struct ieee80211_sub_if_data *sdata) { struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; struct ieee80211_local *local = sdata->local; - u8 frame_buf[DEAUTH_DISASSOC_LEN]; + u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; mutex_lock(&ifmgd->mtx); if (!ifmgd->associated) { @@ -1716,7 +1674,7 @@ static void __ieee80211_connection_loss(struct ieee80211_sub_if_data *sdata) * must be outside lock due to cfg80211, * but that's not a problem. */ - cfg80211_send_deauth(sdata->dev, frame_buf, DEAUTH_DISASSOC_LEN); + cfg80211_send_deauth(sdata->dev, frame_buf, IEEE80211_DEAUTH_FRAME_LEN); mutex_lock(&local->mtx); ieee80211_recalc_idle(local); @@ -2635,7 +2593,7 @@ static void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata, { struct ieee80211_local *local = sdata->local; struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; - u8 frame_buf[DEAUTH_DISASSOC_LEN]; + u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, reason, false, frame_buf); @@ -2645,7 +2603,7 @@ static void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata, * must be outside lock due to cfg80211, * but that's not a problem. */ - cfg80211_send_deauth(sdata->dev, frame_buf, DEAUTH_DISASSOC_LEN); + cfg80211_send_deauth(sdata->dev, frame_buf, IEEE80211_DEAUTH_FRAME_LEN); mutex_lock(&local->mtx); ieee80211_recalc_idle(local); @@ -3521,7 +3479,7 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, struct cfg80211_deauth_request *req) { struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; - u8 frame_buf[DEAUTH_DISASSOC_LEN]; + u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; mutex_lock(&ifmgd->mtx); @@ -3549,7 +3507,8 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, mutex_unlock(&ifmgd->mtx); - __cfg80211_send_deauth(sdata->dev, frame_buf, DEAUTH_DISASSOC_LEN); + __cfg80211_send_deauth(sdata->dev, frame_buf, + IEEE80211_DEAUTH_FRAME_LEN); mutex_lock(&sdata->local->mtx); ieee80211_recalc_idle(sdata->local); @@ -3563,7 +3522,7 @@ int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, { struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; u8 bssid[ETH_ALEN]; - u8 frame_buf[DEAUTH_DISASSOC_LEN]; + u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; mutex_lock(&ifmgd->mtx); @@ -3588,7 +3547,8 @@ int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, frame_buf); mutex_unlock(&ifmgd->mtx); - __cfg80211_send_disassoc(sdata->dev, frame_buf, DEAUTH_DISASSOC_LEN); + __cfg80211_send_disassoc(sdata->dev, frame_buf, + IEEE80211_DEAUTH_FRAME_LEN); mutex_lock(&sdata->local->mtx); ieee80211_recalc_idle(sdata->local); diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 471fb05..8c08b29 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -1004,6 +1004,46 @@ void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, ieee80211_tx_skb(sdata, skb); } +void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, + const u8 *bssid, u16 stype, u16 reason, + bool send_frame, u8 *frame_buf) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + struct sk_buff *skb; + struct ieee80211_mgmt *mgmt = (void *)frame_buf; + + /* build frame */ + mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | stype); + mgmt->duration = 0; /* initialize only */ + mgmt->seq_ctrl = 0; /* initialize only */ + memcpy(mgmt->da, bssid, ETH_ALEN); + memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); + memcpy(mgmt->bssid, bssid, ETH_ALEN); + /* u.deauth.reason_code == u.disassoc.reason_code */ + mgmt->u.deauth.reason_code = cpu_to_le16(reason); + + if (send_frame) { + skb = dev_alloc_skb(local->hw.extra_tx_headroom + + IEEE80211_DEAUTH_FRAME_LEN); + if (!skb) + return; + + skb_reserve(skb, local->hw.extra_tx_headroom); + + /* copy in frame */ + memcpy(skb_put(skb, IEEE80211_DEAUTH_FRAME_LEN), + mgmt, IEEE80211_DEAUTH_FRAME_LEN); + + if (!(ifmgd->flags & IEEE80211_STA_MFP_ENABLED)) + IEEE80211_SKB_CB(skb)->flags |= + IEEE80211_TX_INTFL_DONT_ENCRYPT; + + ieee80211_tx_skb(sdata, skb); + } +} + + int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer, const u8 *ie, size_t ie_len, enum ieee80211_band band, u32 rate_mask,