From patchwork Mon Apr 14 14:03:25 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Antonio Quartulli X-Patchwork-Id: 3962 Return-Path: Received-SPF: Pass (sender SPF authorized) identity=mailfrom; client-ip=178.209.62.157; helo=s3.neomailbox.net; envelope-from=antonio@meshcoding.com; receiver=b.a.t.m.a.n@lists.open-mesh.org Received: from s3.neomailbox.net (s3.neomailbox.net [178.209.62.157]) by open-mesh.org (Postfix) with ESMTPS id 804D1600A53 for ; Mon, 14 Apr 2014 16:04:06 +0200 (CEST) From: Antonio Quartulli To: Johannes Berg Date: Mon, 14 Apr 2014 16:03:25 +0200 Message-Id: <1397484205-20905-7-git-send-email-antonio@meshcoding.com> In-Reply-To: <1397484205-20905-1-git-send-email-antonio@meshcoding.com> References: <1397484205-20905-1-git-send-email-antonio@meshcoding.com> Cc: devel@lists.open80211s.org, b.a.t.m.a.n@lists.open-mesh.org, linux-wireless@vger.kernel.org, Antonio Quartulli Subject: [B.A.T.M.A.N.] [PATCH 7/7] cfg80211: implement cfg80211_get_station cfg80211 API X-BeenThere: b.a.t.m.a.n@lists.open-mesh.org X-Mailman-Version: 2.1.15 Precedence: list Reply-To: The list for a Better Approach To Mobile Ad-hoc Networking List-Id: The list for a Better Approach To Mobile Ad-hoc Networking List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 14 Apr 2014 14:04:06 -0000 From: Antonio Quartulli Implement and export the new cfg80211_get_station() API. This utility can be used by other kernel modules to obtain detailed information about a given wireless station. It will be in particular useful to batman-adv which will implement a wireless rate based metric. Signed-off-by: Antonio Quartulli --- include/net/cfg80211.h | 13 +++++++++++++ net/wireless/util.c | 18 ++++++++++++++++++ 2 files changed, 31 insertions(+) diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index d4b85f7..c890244 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -1065,6 +1065,19 @@ struct station_info { }; /** + * cfg80211_get_station - retrieve information about a given station + * @dev: the device where the station is supposed to be connected to + * @mac_addr: the mac address of the station of interest + * @sinfo: pointer to the structure to fill with the information + * + * Returns 0 on success and sinfo is filled with the available information + * otherwise returns a negative error code and the content of sinfo has to be + * considered undefined. + */ +int cfg80211_get_station(struct net_device *dev, const u8 *mac_addr, + struct station_info *sinfo); + +/** * enum monitor_flags - monitor flags * * Monitor interface configuration flags. Note that these must be the bits diff --git a/net/wireless/util.c b/net/wireless/util.c index d032a31..d84d61a 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -1498,6 +1498,24 @@ unsigned int ieee80211_get_num_supported_channels(struct wiphy *wiphy) } EXPORT_SYMBOL(ieee80211_get_num_supported_channels); +int cfg80211_get_station(struct net_device *dev, const u8 *mac_addr, + struct station_info *sinfo) +{ + struct cfg80211_registered_device *rdev; + struct wireless_dev *wdev; + + wdev = dev->ieee80211_ptr; + if (!wdev) + return -EOPNOTSUPP; + + rdev = wiphy_to_dev(wdev->wiphy); + if (!rdev->ops->get_station) + return -EOPNOTSUPP; + + return rdev_get_station(rdev, dev, mac_addr, sinfo); +} +EXPORT_SYMBOL(cfg80211_get_station); + /* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */ /* Ethernet-II snap header (RFC1042 for most EtherTypes) */ const unsigned char rfc1042_header[] __aligned(2) =