From patchwork Wed Jun 5 11:53:04 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Antonio Quartulli X-Patchwork-Id: 2669331 Return-Path: X-Original-To: patchwork-linux-wireless@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork1.kernel.org (Postfix) with ESMTP id 230793FD4F for ; Wed, 5 Jun 2013 11:55:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753611Ab3FELzL (ORCPT ); Wed, 5 Jun 2013 07:55:11 -0400 Received: from diserzione.investici.org ([82.221.99.153]:60825 "EHLO diserzione.investici.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752778Ab3FELzK (ORCPT ); Wed, 5 Jun 2013 07:55:10 -0400 Received: from [82.221.99.153] (diserzione [82.221.99.153]) (Authenticated sender: ordex@autistici.org) by localhost (Postfix) with ESMTPSA id A7F71180D6F; Wed, 5 Jun 2013 11:55:05 +0000 (UTC) X-DKIM: Sendmail DKIM Filter v2.8.2 diserzione.investici.org A7F71180D6F DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=autistici.org; s=stigmate; t=1370433308; bh=lcIk5Dt3VlhU/iT+2veosDhpjkdh3Hk7K8Dz+apIE3U=; h=From:To:Cc:Subject:Date:Message-Id; b=Hd8Gv+D+sMx1xOYzvHddFX+mrw8Qv7I1hIMM2CjYnH2mSGfP1QCwfWmOmMYtODQvr murkO4sfPGu7RFfKuwObz13JY99Ym0BV/wys7TNOJlXkNg8WadfxNZcgfkpOUBEJ4L IZw4+tdZkW9EXhrfbzDjFpX8+1UMhKamu6l5oUtw= From: Antonio Quartulli To: Johannes Berg Cc: linux-wireless@vger.kernel.org, Antonio Quartulli Subject: [PATCHv2 1/4] nl80211: allow sending CMD_FRAME without specifying any frequency Date: Wed, 5 Jun 2013 13:53:04 +0200 Message-Id: <1370433187-1337-1-git-send-email-ordex@autistici.org> X-Mailer: git-send-email 1.8.1.5 Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Antonio Quartulli Users may want to send a frame on the current channel without specifying it. This is particularly useful for the correct implementation of the IBSS/RSN support in wpa_supplicant which requires to receive and send AUTH frames. Make mgmt_tx pass a NULL channel to the driver if none has been specified by the user. Signed-off-by: Antonio Quartulli --- net/wireless/nl80211.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 88e820b..06af395 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -7139,6 +7139,9 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info) return -EOPNOTSUPP; switch (wdev->iftype) { + case NL80211_IFTYPE_P2P_DEVICE: + if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) + return -EINVAL; case NL80211_IFTYPE_STATION: case NL80211_IFTYPE_ADHOC: case NL80211_IFTYPE_P2P_CLIENT: @@ -7146,7 +7149,6 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info) case NL80211_IFTYPE_AP_VLAN: case NL80211_IFTYPE_MESH_POINT: case NL80211_IFTYPE_P2P_GO: - case NL80211_IFTYPE_P2P_DEVICE: break; default: return -EOPNOTSUPP; @@ -7174,9 +7176,15 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info) no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]); - err = nl80211_parse_chandef(rdev, info, &chandef); - if (err) - return err; + /* get the channel if any has been specified, otherwise pass NULL to + * the driver. The latter will use the current one + */ + chandef.chan = NULL; + if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { + err = nl80211_parse_chandef(rdev, info, &chandef); + if (err) + return err; + } if (!dont_wait_for_ack) { msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);