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[70.114.247.242]) by smtp.gmail.com with ESMTPSA id e195sm499971oic.21.2016.08.03.06.58.05 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 03 Aug 2016 06:58:05 -0700 (PDT) From: Denis Kenzior To: linux-wireless@vger.kernel.org Cc: Denis Kenzior Subject: [PATCH v3 1/3] nl80211: Add nl80211_notify_iface Date: Wed, 3 Aug 2016 16:58:33 -0500 Message-Id: <1470261515-2830-2-git-send-email-denkenz@gmail.com> X-Mailer: git-send-email 2.7.3 In-Reply-To: <1470261515-2830-1-git-send-email-denkenz@gmail.com> References: <1470261515-2830-1-git-send-email-denkenz@gmail.com> Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This function emits NL80211_CMD_NEW_INTERFACE or NL80211_CMD_DEL_INTERFACE events. This is meant to be used by the core to notify userspace applications such as wpa_supplicant when a netdev related to a wireless device has been added or removed. Signed-off-by: Denis Kenzior --- net/wireless/nl80211.c | 28 ++++++++++++++++++++++++++++ net/wireless/nl80211.h | 3 +++ 2 files changed, 31 insertions(+) diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index ac19eb8..c174770 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -11855,6 +11855,34 @@ void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev, NL80211_MCGRP_CONFIG, GFP_KERNEL); } +void nl80211_notify_iface(struct cfg80211_registered_device *rdev, + struct wireless_dev *wdev, + enum nl80211_commands cmd) +{ + struct sk_buff *msg; + bool removal; + + WARN_ON(cmd != NL80211_CMD_NEW_INTERFACE && + cmd != NL80211_CMD_DEL_INTERFACE); + + if (cmd == NL80211_CMD_DEL_INTERFACE) + removal = true; + else + removal = false; + + msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); + if (!msg) + return; + + if (nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, removal) < 0) { + nlmsg_free(msg); + return; + } + + genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, + NL80211_MCGRP_CONFIG, GFP_KERNEL); +} + static int nl80211_add_scan_req(struct sk_buff *msg, struct cfg80211_registered_device *rdev) { diff --git a/net/wireless/nl80211.h b/net/wireless/nl80211.h index a63f402..6f6b73c 100644 --- a/net/wireless/nl80211.h +++ b/net/wireless/nl80211.h @@ -7,6 +7,9 @@ int nl80211_init(void); void nl80211_exit(void); void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev, enum nl80211_commands cmd); +void nl80211_notify_iface(struct cfg80211_registered_device *rdev, + struct wireless_dev *wdev, + enum nl80211_commands cmd); void nl80211_send_scan_start(struct cfg80211_registered_device *rdev, struct wireless_dev *wdev); struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,