Merge tag 'mac80211-next-for-john-2014-09-12' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg <johannes@sipsolutions.net> says:

"This time, I have some rate minstrel improvements, support for a very
small feature from CCX that Steinar reverse-engineered, dynamic ACK
timeout support, a number of changes for TDLS, early support for radio
resource measurement and many fixes. Also, I'm changing a number of
places to clear key memory when it's freed and Intel claims copyright
for code they developed."

Conflicts:
	net/mac80211/iface.c

Signed-off-by: John W. Linville <linville@tuxdriver.com>

4 files changed, 149 insertions, 23 deletions

diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index 8018c91..b1be39c 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -6,6 +6,7 @@
  * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
  * Copyright (c) 2005, Devicescape Software, Inc.
  * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
+ * Copyright (c) 2013 - 2014 Intel Mobile Communications GmbH
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -165,8 +166,12 @@ static inline u16 ieee80211_sn_sub(u16 sn1, u16 sn2)
 
 #define IEEE80211_MAX_MESH_ID_LEN	32
 
+#define IEEE80211_FIRST_TSPEC_TSID	8
 #define IEEE80211_NUM_TIDS		16
 
+/* number of user priorities 802.11 uses */
+#define IEEE80211_NUM_UPS		8
+
 #define IEEE80211_QOS_CTL_LEN		2
 /* 1d tag mask */
 #define IEEE80211_QOS_CTL_TAG1D_MASK		0x0007
@@ -1823,7 +1828,8 @@ enum ieee80211_eid {
 	WLAN_EID_DMG_TSPEC = 146,
 	WLAN_EID_DMG_AT = 147,
 	WLAN_EID_DMG_CAP = 148,
-	/* 149-150 reserved for Cisco */
+	/* 149 reserved for Cisco */
+	WLAN_EID_CISCO_VENDOR_SPECIFIC = 150,
 	WLAN_EID_DMG_OPERATION = 151,
 	WLAN_EID_DMG_BSS_PARAM_CHANGE = 152,
 	WLAN_EID_DMG_BEAM_REFINEMENT = 153,
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index ab21299..a2ddcf2 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -4,6 +4,7 @@
  * 802.11 device and configuration interface
  *
  * Copyright 2006-2010	Johannes Berg <johannes@sipsolutions.net>
+ * Copyright 2013-2014 Intel Mobile Communications GmbH
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -663,6 +664,7 @@ struct cfg80211_acl_data {
  * @crypto: crypto settings
  * @privacy: the BSS uses privacy
  * @auth_type: Authentication type (algorithm)
+ * @smps_mode: SMPS mode
  * @inactivity_timeout: time in seconds to determine station's inactivity.
  * @p2p_ctwindow: P2P CT Window
  * @p2p_opp_ps: P2P opportunistic PS
@@ -681,6 +683,7 @@ struct cfg80211_ap_settings {
 	struct cfg80211_crypto_settings crypto;
 	bool privacy;
 	enum nl80211_auth_type auth_type;
+	enum nl80211_smps_mode smps_mode;
 	int inactivity_timeout;
 	u8 p2p_ctwindow;
 	bool p2p_opp_ps;
@@ -1607,10 +1610,12 @@ struct cfg80211_auth_request {
  *
  * @ASSOC_REQ_DISABLE_HT:  Disable HT (802.11n)
  * @ASSOC_REQ_DISABLE_VHT:  Disable VHT
+ * @ASSOC_REQ_USE_RRM: Declare RRM capability in this association
  */
 enum cfg80211_assoc_req_flags {
 	ASSOC_REQ_DISABLE_HT		= BIT(0),
 	ASSOC_REQ_DISABLE_VHT		= BIT(1),
+	ASSOC_REQ_USE_RRM		= BIT(2),
 };
 
 /**
@@ -1802,6 +1807,7 @@ struct cfg80211_connect_params {
  * @WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed
  * @WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed
  * @WIPHY_PARAM_COVERAGE_CLASS: coverage class changed
+ * @WIPHY_PARAM_DYN_ACK: dynack has been enabled
  */
 enum wiphy_params_flags {
 	WIPHY_PARAM_RETRY_SHORT		= 1 << 0,
@@ -1809,6 +1815,7 @@ enum wiphy_params_flags {
 	WIPHY_PARAM_FRAG_THRESHOLD	= 1 << 2,
 	WIPHY_PARAM_RTS_THRESHOLD	= 1 << 3,
 	WIPHY_PARAM_COVERAGE_CLASS	= 1 << 4,
+	WIPHY_PARAM_DYN_ACK		= 1 << 5,
 };
 
 /*
@@ -1975,14 +1982,12 @@ struct cfg80211_wowlan_wakeup {
 
 /**
  * struct cfg80211_gtk_rekey_data - rekey data
- * @kek: key encryption key
- * @kck: key confirmation key
- * @replay_ctr: replay counter
+ * @kek: key encryption key (NL80211_KEK_LEN bytes)
+ * @kck: key confirmation key (NL80211_KCK_LEN bytes)
+ * @replay_ctr: replay counter (NL80211_REPLAY_CTR_LEN bytes)
  */
 struct cfg80211_gtk_rekey_data {
-	u8 kek[NL80211_KEK_LEN];
-	u8 kck[NL80211_KCK_LEN];
-	u8 replay_ctr[NL80211_REPLAY_CTR_LEN];
+	const u8 *kek, *kck, *replay_ctr;
 };
 
 /**
@@ -2315,6 +2320,17 @@ struct cfg80211_qos_map {
  * @set_ap_chanwidth: Set the AP (including P2P GO) mode channel width for the
  *	given interface This is used e.g. for dynamic HT 20/40 MHz channel width
  *	changes during the lifetime of the BSS.
+ *
+ * @add_tx_ts: validate (if admitted_time is 0) or add a TX TS to the device
+ *	with the given parameters; action frame exchange has been handled by
+ *	userspace so this just has to modify the TX path to take the TS into
+ *	account.
+ *	If the admitted time is 0 just validate the parameters to make sure
+ *	the session can be created at all; it is valid to just always return
+ *	success for that but that may result in inefficient behaviour (handshake
+ *	with the peer followed by immediate teardown when the addition is later
+ *	rejected)
+ * @del_tx_ts: remove an existing TX TS
  */
 struct cfg80211_ops {
 	int	(*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow);
@@ -2555,6 +2571,12 @@ struct cfg80211_ops {
 
 	int	(*set_ap_chanwidth)(struct wiphy *wiphy, struct net_device *dev,
 				    struct cfg80211_chan_def *chandef);
+
+	int	(*add_tx_ts)(struct wiphy *wiphy, struct net_device *dev,
+			     u8 tsid, const u8 *peer, u8 user_prio,
+			     u16 admitted_time);
+	int	(*del_tx_ts)(struct wiphy *wiphy, struct net_device *dev,
+			     u8 tsid, const u8 *peer);
 };
 
 /*
@@ -2601,9 +2623,13 @@ struct cfg80211_ops {
  * @WIPHY_FLAG_SUPPORTS_5_10_MHZ: Device supports 5 MHz and 10 MHz channels.
  * @WIPHY_FLAG_HAS_CHANNEL_SWITCH: Device supports channel switch in
  *	beaconing mode (AP, IBSS, Mesh, ...).
+ * @WIPHY_FLAG_SUPPORTS_WMM_ADMISSION: the device supports setting up WMM
+ *	TSPEC sessions (TID aka TSID 0-7) with the NL80211_CMD_ADD_TX_TS
+ *	command. Standard IEEE 802.11 TSPEC setup is not yet supported, it
+ *	needs to be able to handle Block-Ack agreements and other things.
  */
 enum wiphy_flags {
-	/* use hole at 0 */
+	WIPHY_FLAG_SUPPORTS_WMM_ADMISSION	= BIT(0),
 	/* use hole at 1 */
 	/* use hole at 2 */
 	WIPHY_FLAG_NETNS_OK			= BIT(3),
@@ -3920,6 +3946,7 @@ void cfg80211_auth_timeout(struct net_device *dev, const u8 *addr);
  *	moves to cfg80211 in this call
  * @buf: authentication frame (header + body)
  * @len: length of the frame data
+ * @uapsd_queues: bitmap of ACs configured to uapsd. -1 if n/a.
  *
  * After being asked to associate via cfg80211_ops::assoc() the driver must
  * call either this function or cfg80211_auth_timeout().
@@ -3928,7 +3955,8 @@ void cfg80211_auth_timeout(struct net_device *dev, const u8 *addr);
  */
 void cfg80211_rx_assoc_resp(struct net_device *dev,
 			    struct cfg80211_bss *bss,
-			    const u8 *buf, size_t len);
+			    const u8 *buf, size_t len,
+			    int uapsd_queues);
 
 /**
  * cfg80211_assoc_timeout - notification of timed out association
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index c9b2bec..0ad1f47 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -4,6 +4,7 @@
  * Copyright 2002-2005, Devicescape Software, Inc.
  * Copyright 2006-2007	Jiri Benc <jbenc@suse.cz>
  * Copyright 2007-2010	Johannes Berg <johannes@sipsolutions.net>
+ * Copyright 2013-2014  Intel Mobile Communications GmbH
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -1536,16 +1537,6 @@ struct ieee80211_tx_control {
  * @IEEE80211_HW_MFP_CAPABLE:
  *	Hardware supports management frame protection (MFP, IEEE 802.11w).
  *
- * @IEEE80211_HW_SUPPORTS_STATIC_SMPS:
- *	Hardware supports static spatial multiplexing powersave,
- *	ie. can turn off all but one chain even on HT connections
- *	that should be using more chains.
- *
- * @IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS:
- *	Hardware supports dynamic spatial multiplexing powersave,
- *	ie. can turn off all but one chain and then wake the rest
- *	up as required after, for example, rts/cts handshake.
- *
  * @IEEE80211_HW_SUPPORTS_UAPSD:
  *	Hardware supports Unscheduled Automatic Power Save Delivery
  *	(U-APSD) in managed mode. The mode is configured with
@@ -1631,8 +1622,7 @@ enum ieee80211_hw_flags {
 	IEEE80211_HW_SUPPORTS_DYNAMIC_PS		= 1<<12,
 	IEEE80211_HW_MFP_CAPABLE			= 1<<13,
 	IEEE80211_HW_WANT_MONITOR_VIF			= 1<<14,
-	IEEE80211_HW_SUPPORTS_STATIC_SMPS		= 1<<15,
-	IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS		= 1<<16,
+	/* free slots */
 	IEEE80211_HW_SUPPORTS_UAPSD			= 1<<17,
 	IEEE80211_HW_REPORTS_TX_ACK_STATUS		= 1<<18,
 	IEEE80211_HW_CONNECTION_MONITOR			= 1<<19,
@@ -2672,7 +2662,9 @@ enum ieee80211_roc_type {
  *
  * @set_coverage_class: Set slot time for given coverage class as specified
  *	in IEEE 802.11-2007 section 17.3.8.6 and modify ACK timeout
- *	accordingly. This callback is not required and may sleep.
+ *	accordingly; coverage class equals to -1 to enable ACK timeout
+ *	estimation algorithm (dynack). To disable dynack set valid value for
+ *	coverage class. This callback is not required and may sleep.
  *
  * @testmode_cmd: Implement a cfg80211 test mode command. The passed @vif may
  *	be %NULL. The callback can sleep.
@@ -2956,7 +2948,7 @@ struct ieee80211_ops {
 	int (*get_survey)(struct ieee80211_hw *hw, int idx,
 		struct survey_info *survey);
 	void (*rfkill_poll)(struct ieee80211_hw *hw);
-	void (*set_coverage_class)(struct ieee80211_hw *hw, u8 coverage_class);
+	void (*set_coverage_class)(struct ieee80211_hw *hw, s16 coverage_class);
 #ifdef CONFIG_NL80211_TESTMODE
 	int (*testmode_cmd)(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 			    void *data, int len);
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index d097568..4b28dc0 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -722,6 +722,22 @@
  *	QoS mapping is relevant for IP packets, it is only valid during an
  *	association. This is cleared on disassociation and AP restart.
  *
+ * @NL80211_CMD_ADD_TX_TS: Ask the kernel to add a traffic stream for the given
+ *	%NL80211_ATTR_TSID and %NL80211_ATTR_MAC with %NL80211_ATTR_USER_PRIO
+ *	and %NL80211_ATTR_ADMITTED_TIME parameters.
+ *	Note that the action frame handshake with the AP shall be handled by
+ *	userspace via the normal management RX/TX framework, this only sets
+ *	up the TX TS in the driver/device.
+ *	If the admitted time attribute is not added then the request just checks
+ *	if a subsequent setup could be successful, the intent is to use this to
+ *	avoid setting up a session with the AP when local restrictions would
+ *	make that impossible. However, the subsequent "real" setup may still
+ *	fail even if the check was successful.
+ * @NL80211_CMD_DEL_TX_TS: Remove an existing TS with the %NL80211_ATTR_TSID
+ *	and %NL80211_ATTR_MAC parameters. It isn't necessary to call this
+ *	before removing a station entry entirely, or before disassociating
+ *	or similar, cleanup will happen in the driver/device in this case.
+ *
  * @NL80211_CMD_MAX: highest used command number
  * @__NL80211_CMD_AFTER_LAST: internal use
  */
@@ -893,6 +909,9 @@ enum nl80211_commands {
 
 	NL80211_CMD_SET_QOS_MAP,
 
+	NL80211_CMD_ADD_TX_TS,
+	NL80211_CMD_DEL_TX_TS,
+
 	/* add new commands above here */
 
 	/* used to define NL80211_CMD_MAX below */
@@ -1594,6 +1613,31 @@ enum nl80211_commands {
  * @NL80211_ATTR_TDLS_INITIATOR: flag attribute indicating the current end is
  *	the TDLS link initiator.
  *
+ * @NL80211_ATTR_USE_RRM: flag for indicating whether the current connection
+ *	shall support Radio Resource Measurements (11k). This attribute can be
+ *	used with %NL80211_CMD_ASSOCIATE and %NL80211_CMD_CONNECT requests.
+ *	User space applications are expected to use this flag only if the
+ *	underlying device supports these minimal RRM features:
+ *		%NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES,
+ *		%NL80211_FEATURE_QUIET,
+ *	If this flag is used, driver must add the Power Capabilities IE to the
+ *	association request. In addition, it must also set the RRM capability
+ *	flag in the association request's Capability Info field.
+ *
+ * @NL80211_ATTR_WIPHY_DYN_ACK: flag attribute used to enable ACK timeout
+ *	estimation algorithm (dynack). In order to activate dynack
+ *	%NL80211_FEATURE_ACKTO_ESTIMATION feature flag must be set by lower
+ *	drivers to indicate dynack capability. Dynack is automatically disabled
+ *	setting valid value for coverage class.
+ *
+ * @NL80211_ATTR_TSID: a TSID value (u8 attribute)
+ * @NL80211_ATTR_USER_PRIO: user priority value (u8 attribute)
+ * @NL80211_ATTR_ADMITTED_TIME: admitted time in units of 32 microseconds
+ *	(per second) (u16 attribute)
+ *
+ * @NL80211_ATTR_SMPS_MODE: SMPS mode to use (ap mode). see
+ *	&enum nl80211_smps_mode.
+ *
  * @NL80211_ATTR_MAX: highest attribute number currently defined
  * @__NL80211_ATTR_AFTER_LAST: internal use
  */
@@ -1936,6 +1980,16 @@ enum nl80211_attrs {
 
 	NL80211_ATTR_TDLS_INITIATOR,
 
+	NL80211_ATTR_USE_RRM,
+
+	NL80211_ATTR_WIPHY_DYN_ACK,
+
+	NL80211_ATTR_TSID,
+	NL80211_ATTR_USER_PRIO,
+	NL80211_ATTR_ADMITTED_TIME,
+
+	NL80211_ATTR_SMPS_MODE,
+
 	/* add attributes here, update the policy in nl80211.c */
 
 	__NL80211_ATTR_AFTER_LAST,
@@ -3968,6 +4022,26 @@ enum nl80211_ap_sme_features {
  * @NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE: This driver supports dynamic
  *	channel bandwidth change (e.g., HT 20 <-> 40 MHz channel) during the
  *	lifetime of a BSS.
+ * @NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES: This device adds a DS Parameter
+ *	Set IE to probe requests.
+ * @NL80211_FEATURE_WFA_TPC_IE_IN_PROBES: This device adds a WFA TPC Report IE
+ *	to probe requests.
+ * @NL80211_FEATURE_QUIET: This device, in client mode, supports Quiet Period
+ *	requests sent to it by an AP.
+ * @NL80211_FEATURE_TX_POWER_INSERTION: This device is capable of inserting the
+ *	current tx power value into the TPC Report IE in the spectrum
+ *	management TPC Report action frame, and in the Radio Measurement Link
+ *	Measurement Report action frame.
+ * @NL80211_FEATURE_ACKTO_ESTIMATION: This driver supports dynamic ACK timeout
+ *	estimation (dynack). %NL80211_ATTR_WIPHY_DYN_ACK flag attribute is used
+ *	to enable dynack.
+ * @NL80211_FEATURE_STATIC_SMPS: Device supports static spatial
+ *	multiplexing powersave, ie. can turn off all but one chain
+ *	even on HT connections that should be using more chains.
+ * @NL80211_FEATURE_DYNAMIC_SMPS: Device supports dynamic spatial
+ *	multiplexing powersave, ie. can turn off all but one chain
+ *	and then wake the rest up as required after, for example,
+ *	rts/cts handshake.
  */
 enum nl80211_feature_flags {
 	NL80211_FEATURE_SK_TX_STATUS			= 1 << 0,
@@ -3989,6 +4063,13 @@ enum nl80211_feature_flags {
 	NL80211_FEATURE_USERSPACE_MPM			= 1 << 16,
 	NL80211_FEATURE_ACTIVE_MONITOR			= 1 << 17,
 	NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE	= 1 << 18,
+	NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES	= 1 << 19,
+	NL80211_FEATURE_WFA_TPC_IE_IN_PROBES		= 1 << 20,
+	NL80211_FEATURE_QUIET				= 1 << 21,
+	NL80211_FEATURE_TX_POWER_INSERTION		= 1 << 22,
+	NL80211_FEATURE_ACKTO_ESTIMATION		= 1 << 23,
+	NL80211_FEATURE_STATIC_SMPS			= 1 << 24,
+	NL80211_FEATURE_DYNAMIC_SMPS			= 1 << 25,
 };
 
 /**
@@ -4063,6 +4144,25 @@ enum nl80211_acl_policy {
 };
 
 /**
+ * enum nl80211_smps_mode - SMPS mode
+ *
+ * Requested SMPS mode (for AP mode)
+ *
+ * @NL80211_SMPS_OFF: SMPS off (use all antennas).
+ * @NL80211_SMPS_STATIC: static SMPS (use a single antenna)
+ * @NL80211_SMPS_DYNAMIC: dynamic smps (start with a single antenna and
+ *	turn on other antennas after CTS/RTS).
+ */
+enum nl80211_smps_mode {
+	NL80211_SMPS_OFF,
+	NL80211_SMPS_STATIC,
+	NL80211_SMPS_DYNAMIC,
+
+	__NL80211_SMPS_AFTER_LAST,
+	NL80211_SMPS_MAX = __NL80211_SMPS_AFTER_LAST - 1
+};
+
+/**
  * enum nl80211_radar_event - type of radar event for DFS operation
  *
  * Type of event to be used with NL80211_ATTR_RADAR_EVENT to inform userspace