mac80211: backport upstream patches for driver disconnect
Needed for an mt76 update
Signed-off-by: Felix Fietkau <nbd@nbd.name>
(cherry-picked from commit 5dc5015072)
			
			
This commit is contained in:
		| @@ -0,0 +1,301 @@ | ||||
| From: Johannes Berg <johannes.berg@intel.com> | ||||
| Date: Sun, 6 Dec 2020 14:54:42 +0200 | ||||
| Subject: [PATCH] cfg80211: support immediate reconnect request hint | ||||
|  | ||||
| There are cases where it's necessary to disconnect, but an | ||||
| immediate reconnection is desired. Support a hint to userspace | ||||
| that this is the case, by including a new attribute in the | ||||
| deauth or disassoc event. | ||||
|  | ||||
| Signed-off-by: Luca Coelho <luciano.coelho@intel.com> | ||||
| Link: https://lore.kernel.org/r/iwlwifi.20201206145305.58d33941fb9d.I0e7168c205c7949529c8e3b86f3c9b12c01a7017@changeid | ||||
| Signed-off-by: Johannes Berg <johannes.berg@intel.com> | ||||
| --- | ||||
|  | ||||
| --- a/include/net/cfg80211.h | ||||
| +++ b/include/net/cfg80211.h | ||||
| @@ -6410,13 +6410,15 @@ void cfg80211_abandon_assoc(struct net_d | ||||
|   * @dev: network device | ||||
|   * @buf: 802.11 frame (header + body) | ||||
|   * @len: length of the frame data | ||||
| + * @reconnect: immediate reconnect is desired (include the nl80211 attribute) | ||||
|   * | ||||
|   * This function is called whenever deauthentication has been processed in | ||||
|   * station mode. This includes both received deauthentication frames and | ||||
|   * locally generated ones. This function may sleep. The caller must hold the | ||||
|   * corresponding wdev's mutex. | ||||
|   */ | ||||
| -void cfg80211_tx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len); | ||||
| +void cfg80211_tx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len, | ||||
| +			   bool reconnect); | ||||
|   | ||||
|  /** | ||||
|   * cfg80211_rx_unprot_mlme_mgmt - notification of unprotected mlme mgmt frame | ||||
| --- a/include/uapi/linux/nl80211.h | ||||
| +++ b/include/uapi/linux/nl80211.h | ||||
| @@ -2527,6 +2527,10 @@ enum nl80211_commands { | ||||
|   *	override mask. Used with NL80211_ATTR_S1G_CAPABILITY in | ||||
|   *	NL80211_CMD_ASSOCIATE or NL80211_CMD_CONNECT. | ||||
|   * | ||||
| + * @NL80211_ATTR_RECONNECT_REQUESTED: flag attribute, used with deauth and | ||||
| + *	disassoc events to indicate that an immediate reconnect to the AP | ||||
| + *	is desired. | ||||
| + * | ||||
|   * @NUM_NL80211_ATTR: total number of nl80211_attrs available | ||||
|   * @NL80211_ATTR_MAX: highest attribute number currently defined | ||||
|   * @__NL80211_ATTR_AFTER_LAST: internal use | ||||
| @@ -3016,6 +3020,8 @@ enum nl80211_attrs { | ||||
|  	NL80211_ATTR_S1G_CAPABILITY, | ||||
|  	NL80211_ATTR_S1G_CAPABILITY_MASK, | ||||
|   | ||||
| +	NL80211_ATTR_RECONNECT_REQUESTED, | ||||
| + | ||||
|  	/* add attributes here, update the policy in nl80211.c */ | ||||
|   | ||||
|  	__NL80211_ATTR_AFTER_LAST, | ||||
| --- a/net/mac80211/mlme.c | ||||
| +++ b/net/mac80211/mlme.c | ||||
| @@ -2729,7 +2729,7 @@ static void ieee80211_report_disconnect( | ||||
|  	}; | ||||
|   | ||||
|  	if (tx) | ||||
| -		cfg80211_tx_mlme_mgmt(sdata->dev, buf, len); | ||||
| +		cfg80211_tx_mlme_mgmt(sdata->dev, buf, len, false); | ||||
|  	else | ||||
|  		cfg80211_rx_mlme_mgmt(sdata->dev, buf, len); | ||||
|   | ||||
| @@ -4716,7 +4716,8 @@ void ieee80211_mgd_quiesce(struct ieee80 | ||||
|  		if (ifmgd->auth_data) | ||||
|  			ieee80211_destroy_auth_data(sdata, false); | ||||
|  		cfg80211_tx_mlme_mgmt(sdata->dev, frame_buf, | ||||
| -				      IEEE80211_DEAUTH_FRAME_LEN); | ||||
| +				      IEEE80211_DEAUTH_FRAME_LEN, | ||||
| +				      false); | ||||
|  	} | ||||
|   | ||||
|  	/* This is a bit of a hack - we should find a better and more generic | ||||
| --- a/net/wireless/mlme.c | ||||
| +++ b/net/wireless/mlme.c | ||||
| @@ -4,7 +4,7 @@ | ||||
|   * | ||||
|   * Copyright (c) 2009, Jouni Malinen <j@w1.fi> | ||||
|   * Copyright (c) 2015		Intel Deutschland GmbH | ||||
| - * Copyright (C) 2019 Intel Corporation | ||||
| + * Copyright (C) 2019-2020 Intel Corporation | ||||
|   */ | ||||
|   | ||||
|  #include <linux/kernel.h> | ||||
| @@ -81,7 +81,8 @@ static void cfg80211_process_auth(struct | ||||
|  } | ||||
|   | ||||
|  static void cfg80211_process_deauth(struct wireless_dev *wdev, | ||||
| -				    const u8 *buf, size_t len) | ||||
| +				    const u8 *buf, size_t len, | ||||
| +				    bool reconnect) | ||||
|  { | ||||
|  	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); | ||||
|  	struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; | ||||
| @@ -89,7 +90,7 @@ static void cfg80211_process_deauth(stru | ||||
|  	u16 reason_code = le16_to_cpu(mgmt->u.deauth.reason_code); | ||||
|  	bool from_ap = !ether_addr_equal(mgmt->sa, wdev->netdev->dev_addr); | ||||
|   | ||||
| -	nl80211_send_deauth(rdev, wdev->netdev, buf, len, GFP_KERNEL); | ||||
| +	nl80211_send_deauth(rdev, wdev->netdev, buf, len, reconnect, GFP_KERNEL); | ||||
|   | ||||
|  	if (!wdev->current_bss || | ||||
|  	    !ether_addr_equal(wdev->current_bss->pub.bssid, bssid)) | ||||
| @@ -100,7 +101,8 @@ static void cfg80211_process_deauth(stru | ||||
|  } | ||||
|   | ||||
|  static void cfg80211_process_disassoc(struct wireless_dev *wdev, | ||||
| -				      const u8 *buf, size_t len) | ||||
| +				      const u8 *buf, size_t len, | ||||
| +				      bool reconnect) | ||||
|  { | ||||
|  	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); | ||||
|  	struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; | ||||
| @@ -108,7 +110,8 @@ static void cfg80211_process_disassoc(st | ||||
|  	u16 reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code); | ||||
|  	bool from_ap = !ether_addr_equal(mgmt->sa, wdev->netdev->dev_addr); | ||||
|   | ||||
| -	nl80211_send_disassoc(rdev, wdev->netdev, buf, len, GFP_KERNEL); | ||||
| +	nl80211_send_disassoc(rdev, wdev->netdev, buf, len, reconnect, | ||||
| +			      GFP_KERNEL); | ||||
|   | ||||
|  	if (WARN_ON(!wdev->current_bss || | ||||
|  		    !ether_addr_equal(wdev->current_bss->pub.bssid, bssid))) | ||||
| @@ -133,9 +136,9 @@ void cfg80211_rx_mlme_mgmt(struct net_de | ||||
|  	if (ieee80211_is_auth(mgmt->frame_control)) | ||||
|  		cfg80211_process_auth(wdev, buf, len); | ||||
|  	else if (ieee80211_is_deauth(mgmt->frame_control)) | ||||
| -		cfg80211_process_deauth(wdev, buf, len); | ||||
| +		cfg80211_process_deauth(wdev, buf, len, false); | ||||
|  	else if (ieee80211_is_disassoc(mgmt->frame_control)) | ||||
| -		cfg80211_process_disassoc(wdev, buf, len); | ||||
| +		cfg80211_process_disassoc(wdev, buf, len, false); | ||||
|  } | ||||
|  EXPORT_SYMBOL(cfg80211_rx_mlme_mgmt); | ||||
|   | ||||
| @@ -180,22 +183,23 @@ void cfg80211_abandon_assoc(struct net_d | ||||
|  } | ||||
|  EXPORT_SYMBOL(cfg80211_abandon_assoc); | ||||
|   | ||||
| -void cfg80211_tx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len) | ||||
| +void cfg80211_tx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len, | ||||
| +			   bool reconnect) | ||||
|  { | ||||
|  	struct wireless_dev *wdev = dev->ieee80211_ptr; | ||||
|  	struct ieee80211_mgmt *mgmt = (void *)buf; | ||||
|   | ||||
|  	ASSERT_WDEV_LOCK(wdev); | ||||
|   | ||||
| -	trace_cfg80211_tx_mlme_mgmt(dev, buf, len); | ||||
| +	trace_cfg80211_tx_mlme_mgmt(dev, buf, len, reconnect); | ||||
|   | ||||
|  	if (WARN_ON(len < 2)) | ||||
|  		return; | ||||
|   | ||||
|  	if (ieee80211_is_deauth(mgmt->frame_control)) | ||||
| -		cfg80211_process_deauth(wdev, buf, len); | ||||
| +		cfg80211_process_deauth(wdev, buf, len, reconnect); | ||||
|  	else | ||||
| -		cfg80211_process_disassoc(wdev, buf, len); | ||||
| +		cfg80211_process_disassoc(wdev, buf, len, reconnect); | ||||
|  } | ||||
|  EXPORT_SYMBOL(cfg80211_tx_mlme_mgmt); | ||||
|   | ||||
| --- a/net/wireless/nl80211.c | ||||
| +++ b/net/wireless/nl80211.c | ||||
| @@ -732,6 +732,7 @@ static const struct nla_policy nl80211_p | ||||
|  		NLA_POLICY_EXACT_LEN(IEEE80211_S1G_CAPABILITY_LEN), | ||||
|  	[NL80211_ATTR_S1G_CAPABILITY_MASK] = | ||||
|  		NLA_POLICY_EXACT_LEN(IEEE80211_S1G_CAPABILITY_LEN), | ||||
| +	[NL80211_ATTR_RECONNECT_REQUESTED] = { .type = NLA_REJECT }, | ||||
|  }; | ||||
|   | ||||
|  /* policy for the key attributes */ | ||||
| @@ -15899,7 +15900,7 @@ static void nl80211_send_mlme_event(stru | ||||
|  				    const u8 *buf, size_t len, | ||||
|  				    enum nl80211_commands cmd, gfp_t gfp, | ||||
|  				    int uapsd_queues, const u8 *req_ies, | ||||
| -				    size_t req_ies_len) | ||||
| +				    size_t req_ies_len, bool reconnect) | ||||
|  { | ||||
|  	struct sk_buff *msg; | ||||
|  	void *hdr; | ||||
| @@ -15921,6 +15922,9 @@ static void nl80211_send_mlme_event(stru | ||||
|  	     nla_put(msg, NL80211_ATTR_REQ_IE, req_ies_len, req_ies))) | ||||
|  		goto nla_put_failure; | ||||
|   | ||||
| +	if (reconnect && nla_put_flag(msg, NL80211_ATTR_RECONNECT_REQUESTED)) | ||||
| +		goto nla_put_failure; | ||||
| + | ||||
|  	if (uapsd_queues >= 0) { | ||||
|  		struct nlattr *nla_wmm = | ||||
|  			nla_nest_start_noflag(msg, NL80211_ATTR_STA_WME); | ||||
| @@ -15949,7 +15953,8 @@ void nl80211_send_rx_auth(struct cfg8021 | ||||
|  			  size_t len, gfp_t gfp) | ||||
|  { | ||||
|  	nl80211_send_mlme_event(rdev, netdev, buf, len, | ||||
| -				NL80211_CMD_AUTHENTICATE, gfp, -1, NULL, 0); | ||||
| +				NL80211_CMD_AUTHENTICATE, gfp, -1, NULL, 0, | ||||
| +				false); | ||||
|  } | ||||
|   | ||||
|  void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev, | ||||
| @@ -15959,23 +15964,25 @@ void nl80211_send_rx_assoc(struct cfg802 | ||||
|  { | ||||
|  	nl80211_send_mlme_event(rdev, netdev, buf, len, | ||||
|  				NL80211_CMD_ASSOCIATE, gfp, uapsd_queues, | ||||
| -				req_ies, req_ies_len); | ||||
| +				req_ies, req_ies_len, false); | ||||
|  } | ||||
|   | ||||
|  void nl80211_send_deauth(struct cfg80211_registered_device *rdev, | ||||
|  			 struct net_device *netdev, const u8 *buf, | ||||
| -			 size_t len, gfp_t gfp) | ||||
| +			 size_t len, bool reconnect, gfp_t gfp) | ||||
|  { | ||||
|  	nl80211_send_mlme_event(rdev, netdev, buf, len, | ||||
| -				NL80211_CMD_DEAUTHENTICATE, gfp, -1, NULL, 0); | ||||
| +				NL80211_CMD_DEAUTHENTICATE, gfp, -1, NULL, 0, | ||||
| +				reconnect); | ||||
|  } | ||||
|   | ||||
|  void nl80211_send_disassoc(struct cfg80211_registered_device *rdev, | ||||
|  			   struct net_device *netdev, const u8 *buf, | ||||
| -			   size_t len, gfp_t gfp) | ||||
| +			   size_t len, bool reconnect, gfp_t gfp) | ||||
|  { | ||||
|  	nl80211_send_mlme_event(rdev, netdev, buf, len, | ||||
| -				NL80211_CMD_DISASSOCIATE, gfp, -1, NULL, 0); | ||||
| +				NL80211_CMD_DISASSOCIATE, gfp, -1, NULL, 0, | ||||
| +				reconnect); | ||||
|  } | ||||
|   | ||||
|  void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf, | ||||
| @@ -16006,7 +16013,7 @@ void cfg80211_rx_unprot_mlme_mgmt(struct | ||||
|   | ||||
|  	trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len); | ||||
|  	nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1, | ||||
| -				NULL, 0); | ||||
| +				NULL, 0, false); | ||||
|  } | ||||
|  EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt); | ||||
|   | ||||
| --- a/net/wireless/nl80211.h | ||||
| +++ b/net/wireless/nl80211.h | ||||
| @@ -1,7 +1,7 @@ | ||||
|  /* SPDX-License-Identifier: GPL-2.0 */ | ||||
|  /* | ||||
|   * Portions of this file | ||||
| - * Copyright (C) 2018 Intel Corporation | ||||
| + * Copyright (C) 2018, 2020 Intel Corporation | ||||
|   */ | ||||
|  #ifndef __NET_WIRELESS_NL80211_H | ||||
|  #define __NET_WIRELESS_NL80211_H | ||||
| @@ -69,10 +69,12 @@ void nl80211_send_rx_assoc(struct cfg802 | ||||
|  			   const u8 *req_ies, size_t req_ies_len); | ||||
|  void nl80211_send_deauth(struct cfg80211_registered_device *rdev, | ||||
|  			 struct net_device *netdev, | ||||
| -			 const u8 *buf, size_t len, gfp_t gfp); | ||||
| +			 const u8 *buf, size_t len, | ||||
| +			 bool reconnect, gfp_t gfp); | ||||
|  void nl80211_send_disassoc(struct cfg80211_registered_device *rdev, | ||||
|  			   struct net_device *netdev, | ||||
| -			   const u8 *buf, size_t len, gfp_t gfp); | ||||
| +			   const u8 *buf, size_t len, | ||||
| +			   bool reconnect, gfp_t gfp); | ||||
|  void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev, | ||||
|  			       struct net_device *netdev, | ||||
|  			       const u8 *addr, gfp_t gfp); | ||||
| --- a/net/wireless/trace.h | ||||
| +++ b/net/wireless/trace.h | ||||
| @@ -2684,19 +2684,23 @@ DEFINE_EVENT(netdev_frame_event, cfg8021 | ||||
|  ); | ||||
|   | ||||
|  TRACE_EVENT(cfg80211_tx_mlme_mgmt, | ||||
| -	TP_PROTO(struct net_device *netdev, const u8 *buf, int len), | ||||
| -	TP_ARGS(netdev, buf, len), | ||||
| +	TP_PROTO(struct net_device *netdev, const u8 *buf, int len, | ||||
| +		 bool reconnect), | ||||
| +	TP_ARGS(netdev, buf, len, reconnect), | ||||
|  	TP_STRUCT__entry( | ||||
|  		NETDEV_ENTRY | ||||
|  		__dynamic_array(u8, frame, len) | ||||
| +		__field(int, reconnect) | ||||
|  	), | ||||
|  	TP_fast_assign( | ||||
|  		NETDEV_ASSIGN; | ||||
|  		memcpy(__get_dynamic_array(frame), buf, len); | ||||
| +		__entry->reconnect = reconnect; | ||||
|  	), | ||||
| -	TP_printk(NETDEV_PR_FMT ", ftype:0x%.2x", | ||||
| +	TP_printk(NETDEV_PR_FMT ", ftype:0x%.2x reconnect:%d", | ||||
|  		  NETDEV_PR_ARG, | ||||
| -		  le16_to_cpup((__le16 *)__get_dynamic_array(frame))) | ||||
| +		  le16_to_cpup((__le16 *)__get_dynamic_array(frame)), | ||||
| +		  __entry->reconnect) | ||||
|  ); | ||||
|   | ||||
|  DECLARE_EVENT_CLASS(netdev_mac_evt, | ||||
| @@ -0,0 +1,271 @@ | ||||
| From: Johannes Berg <johannes.berg@intel.com> | ||||
| Date: Sun, 6 Dec 2020 14:54:43 +0200 | ||||
| Subject: [PATCH] mac80211: support driver-based disconnect with reconnect hint | ||||
|  | ||||
| Support the driver indicating that a disconnection needs | ||||
| to be performed, and pass through the reconnect hint in | ||||
| this case. | ||||
|  | ||||
| Signed-off-by: Johannes Berg <johannes.berg@intel.com> | ||||
| Signed-off-by: Luca Coelho <luciano.coelho@intel.com> | ||||
| Link: https://lore.kernel.org/r/iwlwifi.20201206145305.5c8dab7a22a0.I58459fdf6968b16c90cab9c574f0f04ca22b0c79@changeid | ||||
| Signed-off-by: Johannes Berg <johannes.berg@intel.com> | ||||
| --- | ||||
|  | ||||
| --- a/include/net/mac80211.h | ||||
| +++ b/include/net/mac80211.h | ||||
| @@ -5885,6 +5885,17 @@ void ieee80211_beacon_loss(struct ieee80 | ||||
|  void ieee80211_connection_loss(struct ieee80211_vif *vif); | ||||
|   | ||||
|  /** | ||||
| + * ieee80211_disconnect - request disconnection | ||||
| + * | ||||
| + * @vif: &struct ieee80211_vif pointer from the add_interface callback. | ||||
| + * @reconnect: immediate reconnect is desired | ||||
| + * | ||||
| + * Request disconnection from the current network and, if enabled, send a | ||||
| + * hint to the higher layers that immediate reconnect is desired. | ||||
| + */ | ||||
| +void ieee80211_disconnect(struct ieee80211_vif *vif, bool reconnect); | ||||
| + | ||||
| +/** | ||||
|   * ieee80211_resume_disconnect - disconnect from AP after resume | ||||
|   * | ||||
|   * @vif: &struct ieee80211_vif pointer from the add_interface callback. | ||||
| --- a/net/mac80211/ieee80211_i.h | ||||
| +++ b/net/mac80211/ieee80211_i.h | ||||
| @@ -461,7 +461,9 @@ struct ieee80211_if_managed { | ||||
|  	unsigned long probe_timeout; | ||||
|  	int probe_send_count; | ||||
|  	bool nullfunc_failed; | ||||
| -	bool connection_loss; | ||||
| +	u8 connection_loss:1, | ||||
| +	   driver_disconnect:1, | ||||
| +	   reconnect:1; | ||||
|   | ||||
|  	struct cfg80211_bss *associated; | ||||
|  	struct ieee80211_mgd_auth_data *auth_data; | ||||
| --- a/net/mac80211/mlme.c | ||||
| +++ b/net/mac80211/mlme.c | ||||
| @@ -2720,7 +2720,7 @@ EXPORT_SYMBOL(ieee80211_ap_probereq_get) | ||||
|   | ||||
|  static void ieee80211_report_disconnect(struct ieee80211_sub_if_data *sdata, | ||||
|  					const u8 *buf, size_t len, bool tx, | ||||
| -					u16 reason) | ||||
| +					u16 reason, bool reconnect) | ||||
|  { | ||||
|  	struct ieee80211_event event = { | ||||
|  		.type = MLME_EVENT, | ||||
| @@ -2729,7 +2729,7 @@ static void ieee80211_report_disconnect( | ||||
|  	}; | ||||
|   | ||||
|  	if (tx) | ||||
| -		cfg80211_tx_mlme_mgmt(sdata->dev, buf, len, false); | ||||
| +		cfg80211_tx_mlme_mgmt(sdata->dev, buf, len, reconnect); | ||||
|  	else | ||||
|  		cfg80211_rx_mlme_mgmt(sdata->dev, buf, len); | ||||
|   | ||||
| @@ -2751,13 +2751,18 @@ static void __ieee80211_disconnect(struc | ||||
|   | ||||
|  	tx = !sdata->csa_block_tx; | ||||
|   | ||||
| -	/* AP is probably out of range (or not reachable for another reason) so | ||||
| -	 * remove the bss struct for that AP. | ||||
| -	 */ | ||||
| -	cfg80211_unlink_bss(local->hw.wiphy, ifmgd->associated); | ||||
| +	if (!ifmgd->driver_disconnect) { | ||||
| +		/* | ||||
| +		 * AP is probably out of range (or not reachable for another | ||||
| +		 * reason) so remove the bss struct for that AP. | ||||
| +		 */ | ||||
| +		cfg80211_unlink_bss(local->hw.wiphy, ifmgd->associated); | ||||
| +	} | ||||
|   | ||||
|  	ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, | ||||
| -			       WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, | ||||
| +			       ifmgd->driver_disconnect ? | ||||
| +					WLAN_REASON_DEAUTH_LEAVING : | ||||
| +					WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, | ||||
|  			       tx, frame_buf); | ||||
|  	mutex_lock(&local->mtx); | ||||
|  	sdata->vif.csa_active = false; | ||||
| @@ -2770,7 +2775,9 @@ static void __ieee80211_disconnect(struc | ||||
|  	mutex_unlock(&local->mtx); | ||||
|   | ||||
|  	ieee80211_report_disconnect(sdata, frame_buf, sizeof(frame_buf), tx, | ||||
| -				    WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY); | ||||
| +				    WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, | ||||
| +				    ifmgd->reconnect); | ||||
| +	ifmgd->reconnect = false; | ||||
|   | ||||
|  	sdata_unlock(sdata); | ||||
|  } | ||||
| @@ -2789,6 +2796,13 @@ static void ieee80211_beacon_connection_ | ||||
|  		sdata_info(sdata, "Connection to AP %pM lost\n", | ||||
|  			   ifmgd->bssid); | ||||
|  		__ieee80211_disconnect(sdata); | ||||
| +		ifmgd->connection_loss = false; | ||||
| +	} else if (ifmgd->driver_disconnect) { | ||||
| +		sdata_info(sdata, | ||||
| +			   "Driver requested disconnection from AP %pM\n", | ||||
| +			   ifmgd->bssid); | ||||
| +		__ieee80211_disconnect(sdata); | ||||
| +		ifmgd->driver_disconnect = false; | ||||
|  	} else { | ||||
|  		ieee80211_mgd_probe_ap(sdata, true); | ||||
|  	} | ||||
| @@ -2827,6 +2841,21 @@ void ieee80211_connection_loss(struct ie | ||||
|  } | ||||
|  EXPORT_SYMBOL(ieee80211_connection_loss); | ||||
|   | ||||
| +void ieee80211_disconnect(struct ieee80211_vif *vif, bool reconnect) | ||||
| +{ | ||||
| +	struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | ||||
| +	struct ieee80211_hw *hw = &sdata->local->hw; | ||||
| + | ||||
| +	trace_api_disconnect(sdata, reconnect); | ||||
| + | ||||
| +	if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION)) | ||||
| +		return; | ||||
| + | ||||
| +	sdata->u.mgd.driver_disconnect = true; | ||||
| +	sdata->u.mgd.reconnect = reconnect; | ||||
| +	ieee80211_queue_work(hw, &sdata->u.mgd.beacon_connection_loss_work); | ||||
| +} | ||||
| +EXPORT_SYMBOL(ieee80211_disconnect); | ||||
|   | ||||
|  static void ieee80211_destroy_auth_data(struct ieee80211_sub_if_data *sdata, | ||||
|  					bool assoc) | ||||
| @@ -3130,7 +3159,7 @@ static void ieee80211_rx_mgmt_deauth(str | ||||
|  		ieee80211_set_disassoc(sdata, 0, 0, false, NULL); | ||||
|   | ||||
|  		ieee80211_report_disconnect(sdata, (u8 *)mgmt, len, false, | ||||
| -					    reason_code); | ||||
| +					    reason_code, false); | ||||
|  		return; | ||||
|  	} | ||||
|   | ||||
| @@ -3179,7 +3208,8 @@ static void ieee80211_rx_mgmt_disassoc(s | ||||
|   | ||||
|  	ieee80211_set_disassoc(sdata, 0, 0, false, NULL); | ||||
|   | ||||
| -	ieee80211_report_disconnect(sdata, (u8 *)mgmt, len, false, reason_code); | ||||
| +	ieee80211_report_disconnect(sdata, (u8 *)mgmt, len, false, reason_code, | ||||
| +				    false); | ||||
|  } | ||||
|   | ||||
|  static void ieee80211_get_rates(struct ieee80211_supported_band *sband, | ||||
| @@ -4199,7 +4229,8 @@ static void ieee80211_rx_mgmt_beacon(str | ||||
|  				       true, deauth_buf); | ||||
|  		ieee80211_report_disconnect(sdata, deauth_buf, | ||||
|  					    sizeof(deauth_buf), true, | ||||
| -					    WLAN_REASON_DEAUTH_LEAVING); | ||||
| +					    WLAN_REASON_DEAUTH_LEAVING, | ||||
| +					    false); | ||||
|  		return; | ||||
|  	} | ||||
|   | ||||
| @@ -4344,7 +4375,7 @@ static void ieee80211_sta_connection_los | ||||
|  			       tx, frame_buf); | ||||
|   | ||||
|  	ieee80211_report_disconnect(sdata, frame_buf, sizeof(frame_buf), true, | ||||
| -				    reason); | ||||
| +				    reason, false); | ||||
|  } | ||||
|   | ||||
|  static int ieee80211_auth(struct ieee80211_sub_if_data *sdata) | ||||
| @@ -5431,7 +5462,8 @@ int ieee80211_mgd_auth(struct ieee80211_ | ||||
|   | ||||
|  		ieee80211_report_disconnect(sdata, frame_buf, | ||||
|  					    sizeof(frame_buf), true, | ||||
| -					    WLAN_REASON_UNSPECIFIED); | ||||
| +					    WLAN_REASON_UNSPECIFIED, | ||||
| +					    false); | ||||
|  	} | ||||
|   | ||||
|  	sdata_info(sdata, "authenticate with %pM\n", req->bss->bssid); | ||||
| @@ -5503,7 +5535,8 @@ int ieee80211_mgd_assoc(struct ieee80211 | ||||
|   | ||||
|  		ieee80211_report_disconnect(sdata, frame_buf, | ||||
|  					    sizeof(frame_buf), true, | ||||
| -					    WLAN_REASON_UNSPECIFIED); | ||||
| +					    WLAN_REASON_UNSPECIFIED, | ||||
| +					    false); | ||||
|  	} | ||||
|   | ||||
|  	if (ifmgd->auth_data && !ifmgd->auth_data->done) { | ||||
| @@ -5802,7 +5835,7 @@ int ieee80211_mgd_deauth(struct ieee8021 | ||||
|  		ieee80211_destroy_auth_data(sdata, false); | ||||
|  		ieee80211_report_disconnect(sdata, frame_buf, | ||||
|  					    sizeof(frame_buf), true, | ||||
| -					    req->reason_code); | ||||
| +					    req->reason_code, false); | ||||
|   | ||||
|  		return 0; | ||||
|  	} | ||||
| @@ -5822,7 +5855,7 @@ int ieee80211_mgd_deauth(struct ieee8021 | ||||
|  		ieee80211_destroy_assoc_data(sdata, false, true); | ||||
|  		ieee80211_report_disconnect(sdata, frame_buf, | ||||
|  					    sizeof(frame_buf), true, | ||||
| -					    req->reason_code); | ||||
| +					    req->reason_code, false); | ||||
|  		return 0; | ||||
|  	} | ||||
|   | ||||
| @@ -5837,7 +5870,7 @@ int ieee80211_mgd_deauth(struct ieee8021 | ||||
|  				       req->reason_code, tx, frame_buf); | ||||
|  		ieee80211_report_disconnect(sdata, frame_buf, | ||||
|  					    sizeof(frame_buf), true, | ||||
| -					    req->reason_code); | ||||
| +					    req->reason_code, false); | ||||
|  		return 0; | ||||
|  	} | ||||
|   | ||||
| @@ -5870,7 +5903,7 @@ int ieee80211_mgd_disassoc(struct ieee80 | ||||
|  			       frame_buf); | ||||
|   | ||||
|  	ieee80211_report_disconnect(sdata, frame_buf, sizeof(frame_buf), true, | ||||
| -				    req->reason_code); | ||||
| +				    req->reason_code, false); | ||||
|   | ||||
|  	return 0; | ||||
|  } | ||||
| --- a/net/mac80211/trace.h | ||||
| +++ b/net/mac80211/trace.h | ||||
| @@ -2,7 +2,7 @@ | ||||
|  /* | ||||
|  * Portions of this file | ||||
|  * Copyright(c) 2016-2017 Intel Deutschland GmbH | ||||
| -* Copyright (C) 2018 - 2019 Intel Corporation | ||||
| +* Copyright (C) 2018 - 2020 Intel Corporation | ||||
|  */ | ||||
|   | ||||
|  #if !defined(__MAC80211_DRIVER_TRACE) || defined(TRACE_HEADER_MULTI_READ) | ||||
| @@ -2086,6 +2086,27 @@ TRACE_EVENT(api_connection_loss, | ||||
|  	) | ||||
|  ); | ||||
|   | ||||
| +TRACE_EVENT(api_disconnect, | ||||
| +	TP_PROTO(struct ieee80211_sub_if_data *sdata, bool reconnect), | ||||
| + | ||||
| +	TP_ARGS(sdata, reconnect), | ||||
| + | ||||
| +	TP_STRUCT__entry( | ||||
| +		VIF_ENTRY | ||||
| +		__field(int, reconnect) | ||||
| +	), | ||||
| + | ||||
| +	TP_fast_assign( | ||||
| +		VIF_ASSIGN; | ||||
| +		__entry->reconnect = reconnect; | ||||
| +	), | ||||
| + | ||||
| +	TP_printk( | ||||
| +		VIF_PR_FMT " reconnect:%d", | ||||
| +		VIF_PR_ARG, __entry->reconnect | ||||
| +	) | ||||
| +); | ||||
| + | ||||
|  TRACE_EVENT(api_cqm_rssi_notify, | ||||
|  	TP_PROTO(struct ieee80211_sub_if_data *sdata, | ||||
|  		 enum nl80211_cqm_rssi_threshold_event rssi_event, | ||||
| @@ -68,7 +68,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name> | ||||
|  static int fq_init(struct fq *fq, int flows_cnt) | ||||
| --- a/net/mac80211/ieee80211_i.h | ||||
| +++ b/net/mac80211/ieee80211_i.h | ||||
| @@ -855,7 +855,6 @@ enum txq_info_flags { | ||||
| @@ -857,7 +857,6 @@ enum txq_info_flags { | ||||
|   */ | ||||
|  struct txq_info { | ||||
|  	struct fq_tin tin; | ||||
|   | ||||
| @@ -536,7 +536,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name> | ||||
|  }; | ||||
| --- a/net/mac80211/trace.h | ||||
| +++ b/net/mac80211/trace.h | ||||
| @@ -2740,7 +2740,7 @@ DEFINE_EVENT(local_sdata_addr_evt, drv_u | ||||
| @@ -2761,7 +2761,7 @@ DEFINE_EVENT(local_sdata_addr_evt, drv_u | ||||
|  	TP_ARGS(local, sdata) | ||||
|  ); | ||||
|   | ||||
| @@ -545,7 +545,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name> | ||||
|  	TP_PROTO(struct ieee80211_local *local, | ||||
|  		 struct ieee80211_sub_if_data *sdata, | ||||
|  		 struct ieee80211_sta *sta, bool enabled), | ||||
| @@ -2767,6 +2767,22 @@ TRACE_EVENT(drv_sta_set_4addr, | ||||
| @@ -2788,6 +2788,22 @@ TRACE_EVENT(drv_sta_set_4addr, | ||||
|  	) | ||||
|  ); | ||||
|   | ||||
|   | ||||
| @@ -36,9 +36,9 @@ | ||||
|  	u8 ps_dtim_period; | ||||
| --- a/include/uapi/linux/nl80211.h | ||||
| +++ b/include/uapi/linux/nl80211.h | ||||
| @@ -2527,6 +2527,9 @@ enum nl80211_commands { | ||||
|   *	override mask. Used with NL80211_ATTR_S1G_CAPABILITY in | ||||
|   *	NL80211_CMD_ASSOCIATE or NL80211_CMD_CONNECT. | ||||
| @@ -2531,6 +2531,9 @@ enum nl80211_commands { | ||||
|   *	disassoc events to indicate that an immediate reconnect to the AP | ||||
|   *	is desired. | ||||
|   * | ||||
| + * @NL80211_ATTR_WIPHY_ANTENNA_GAIN: Configured antenna gain. Used to reduce | ||||
| + *	transmit power to stay within regulatory limits. u32, dBi. | ||||
| @@ -46,9 +46,9 @@ | ||||
|   * @NUM_NL80211_ATTR: total number of nl80211_attrs available | ||||
|   * @NL80211_ATTR_MAX: highest attribute number currently defined | ||||
|   * @__NL80211_ATTR_AFTER_LAST: internal use | ||||
| @@ -3016,6 +3019,8 @@ enum nl80211_attrs { | ||||
|  	NL80211_ATTR_S1G_CAPABILITY, | ||||
|  	NL80211_ATTR_S1G_CAPABILITY_MASK, | ||||
| @@ -3022,6 +3025,8 @@ enum nl80211_attrs { | ||||
|   | ||||
|  	NL80211_ATTR_RECONNECT_REQUESTED, | ||||
|   | ||||
| +	NL80211_ATTR_WIPHY_ANTENNA_GAIN, | ||||
| + | ||||
| @@ -87,7 +87,7 @@ | ||||
|  	CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) | ||||
| --- a/net/mac80211/ieee80211_i.h | ||||
| +++ b/net/mac80211/ieee80211_i.h | ||||
| @@ -1401,6 +1401,7 @@ struct ieee80211_local { | ||||
| @@ -1403,6 +1403,7 @@ struct ieee80211_local { | ||||
|  	int dynamic_ps_forced_timeout; | ||||
|   | ||||
|  	int user_power_level; /* in dBm, for all interfaces */ | ||||
| @@ -129,15 +129,15 @@ | ||||
|  	local->hw.max_mtu = IEEE80211_MAX_DATA_LEN; | ||||
| --- a/net/wireless/nl80211.c | ||||
| +++ b/net/wireless/nl80211.c | ||||
| @@ -732,6 +732,7 @@ static const struct nla_policy nl80211_p | ||||
|  		NLA_POLICY_EXACT_LEN(IEEE80211_S1G_CAPABILITY_LEN), | ||||
| @@ -733,6 +733,7 @@ static const struct nla_policy nl80211_p | ||||
|  	[NL80211_ATTR_S1G_CAPABILITY_MASK] = | ||||
|  		NLA_POLICY_EXACT_LEN(IEEE80211_S1G_CAPABILITY_LEN), | ||||
|  	[NL80211_ATTR_RECONNECT_REQUESTED] = { .type = NLA_REJECT }, | ||||
| +	[NL80211_ATTR_WIPHY_ANTENNA_GAIN] = { .type = NLA_U32 }, | ||||
|  }; | ||||
|   | ||||
|  /* policy for the key attributes */ | ||||
| @@ -3240,6 +3241,20 @@ static int nl80211_set_wiphy(struct sk_b | ||||
| @@ -3241,6 +3242,20 @@ static int nl80211_set_wiphy(struct sk_b | ||||
|  		if (result) | ||||
|  			return result; | ||||
|  	} | ||||
|   | ||||
| @@ -1,19 +1,25 @@ | ||||
| --- a/nl80211.h | ||||
| +++ b/nl80211.h | ||||
| @@ -2527,6 +2527,9 @@ enum nl80211_commands { | ||||
| @@ -2527,6 +2527,13 @@ enum nl80211_commands { | ||||
|   *	override mask. Used with NL80211_ATTR_S1G_CAPABILITY in | ||||
|   *	NL80211_CMD_ASSOCIATE or NL80211_CMD_CONNECT. | ||||
|   * | ||||
| + * @NL80211_ATTR_RECONNECT_REQUESTED: flag attribute, used with deauth and | ||||
| + *	disassoc events to indicate that an immediate reconnect to the AP | ||||
| + *	is desired. | ||||
| + * | ||||
| + * @NL80211_ATTR_WIPHY_ANTENNA_GAIN: Configured antenna gain. Used to reduce | ||||
| + *	transmit power to stay within regulatory limits. u32, dBi. | ||||
| + * | ||||
|   * @NUM_NL80211_ATTR: total number of nl80211_attrs available | ||||
|   * @NL80211_ATTR_MAX: highest attribute number currently defined | ||||
|   * @__NL80211_ATTR_AFTER_LAST: internal use | ||||
| @@ -3016,6 +3019,8 @@ enum nl80211_attrs { | ||||
| @@ -3016,6 +3023,10 @@ enum nl80211_attrs { | ||||
|  	NL80211_ATTR_S1G_CAPABILITY, | ||||
|  	NL80211_ATTR_S1G_CAPABILITY_MASK, | ||||
|   | ||||
| +	NL80211_ATTR_RECONNECT_REQUESTED, | ||||
| + | ||||
| +	NL80211_ATTR_WIPHY_ANTENNA_GAIN, | ||||
| + | ||||
|  	/* add attributes here, update the policy in nl80211.c */ | ||||
|   | ||||
		Reference in New Issue
	
	Block a user
	 Felix Fietkau
					Felix Fietkau