---

yaml
---
r: 341588
b: refs/heads/master
c: 3475b09
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 90b9e446fbb64630c72cab48c007d7081aec2533
+refs/heads/master: 3475b0946bd2057497628790d4b4fce4bfdcc304

trunk/include/net/cfg80211.h

@@ -3593,6 +3593,25 @@ bool cfg80211_can_beacon_sec_chan(struct wiphy *wiphy,
 void cfg80211_ch_switch_notify(struct net_device *dev, int freq,
 			       enum nl80211_channel_type type);
 
+/*
+ * cfg80211_tdls_oper_request - request userspace to perform TDLS operation
+ * @dev: the device on which the operation is requested
+ * @peer: the MAC address of the peer device
+ * @oper: the requested TDLS operation (NL80211_TDLS_SETUP or
+ *	NL80211_TDLS_TEARDOWN)
+ * @reason_code: the reason code for teardown request
+ * @gfp: allocation flags
+ *
+ * This function is used to request userspace to perform TDLS operation that
+ * requires knowledge of keys, i.e., link setup or teardown when the AP
+ * connection uses encryption. This is optional mechanism for the driver to use
+ * if it can automatically determine when a TDLS link could be useful (e.g.,
+ * based on traffic and signal strength for a peer).
+ */
+void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
+				enum nl80211_tdls_operation oper,
+				u16 reason_code, gfp_t gfp);
+
 /*
  * cfg80211_calculate_bitrate - calculate actual bitrate (in 100Kbps units)
  * @rate: given rate_info to calculate bitrate from

trunk/include/uapi/linux/nl80211.h

@@ -526,6 +526,12 @@
  *	of PMKSA caching dandidates.
  *
  * @NL80211_CMD_TDLS_OPER: Perform a high-level TDLS command (e.g. link setup).
+ *	In addition, this can be used as an event to request userspace to take
+ *	actions on TDLS links (set up a new link or tear down an existing one).
+ *	In such events, %NL80211_ATTR_TDLS_OPERATION indicates the requested
+ *	operation, %NL80211_ATTR_MAC contains the peer MAC address, and
+ *	%NL80211_ATTR_REASON_CODE the reason code to be used (only with
+ *	%NL80211_TDLS_TEARDOWN).
  * @NL80211_CMD_TDLS_MGMT: Send a TDLS management frame.
  *
  * @NL80211_CMD_UNEXPECTED_FRAME: Used by an application controlling an AP

trunk/net/wireless/nl80211.c

@@ -9027,6 +9027,53 @@ void cfg80211_report_obss_beacon(struct wiphy *wiphy,
 }
 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
 
+void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
+				enum nl80211_tdls_operation oper,
+				u16 reason_code, gfp_t gfp)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+	struct sk_buff *msg;
+	void *hdr;
+	int err;
+
+	trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
+					 reason_code);
+
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
+	if (!msg)
+		return;
+
+	hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
+	if (!hdr) {
+		nlmsg_free(msg);
+		return;
+	}
+
+	if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
+	    nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
+	    nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
+	    nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
+	    (reason_code > 0 &&
+	     nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
+		goto nla_put_failure;
+
+	err = genlmsg_end(msg, hdr);
+	if (err < 0) {
+		nlmsg_free(msg);
+		return;
+	}
+
+	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+				nl80211_mlme_mcgrp.id, gfp);
+	return;
+
+ nla_put_failure:
+	genlmsg_cancel(msg, hdr);
+	nlmsg_free(msg);
+}
+EXPORT_SYMBOL(cfg80211_tdls_oper_request);
+
 static int nl80211_netlink_notify(struct notifier_block * nb,
 				  unsigned long state,
 				  void *_notify)

trunk/net/wireless/trace.h

@@ -2157,6 +2157,29 @@ TRACE_EVENT(cfg80211_report_obss_beacon,
 		  WIPHY_PR_ARG, __entry->freq, __entry->sig_dbm)
 );
 
+TRACE_EVENT(cfg80211_tdls_oper_request,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, const u8 *peer,
+		 enum nl80211_tdls_operation oper, u16 reason_code),
+	TP_ARGS(wiphy, netdev, peer, oper, reason_code),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		MAC_ENTRY(peer)
+		__field(enum nl80211_tdls_operation, oper)
+		__field(u16, reason_code)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		MAC_ASSIGN(peer, peer);
+		__entry->oper = oper;
+		__entry->reason_code = reason_code;
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", peer: " MAC_PR_FMT ", oper: %d, reason_code %u",
+		  WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(peer), __entry->oper,
+		  __entry->reason_code)
+	);
+
 TRACE_EVENT(cfg80211_scan_done,
 	TP_PROTO(struct cfg80211_scan_request *request, bool aborted),
 	TP_ARGS(request, aborted),