Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

4 files changed, 193 insertions, 17 deletions

diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index 2385119f8bb0..85764a900731 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -1107,20 +1107,6 @@ struct ieee80211_ht_operation {
 #define WLAN_HT_SMPS_CONTROL_STATIC     1
 #define WLAN_HT_SMPS_CONTROL_DYNAMIC    3
 
-#define VHT_MCS_SUPPORTED_SET_SIZE      8
-
-struct ieee80211_vht_capabilities {
-        __le32 vht_capabilities_info;
-        u8 vht_supported_mcs_set[VHT_MCS_SUPPORTED_SET_SIZE];
-} __packed;
-
-struct ieee80211_vht_operation {
-        u8 vht_op_info_chwidth;
-        u8 vht_op_info_chan_center_freq_seg1_idx;
-        u8 vht_op_info_chan_center_freq_seg2_idx;
-        __le16 vht_basic_mcs_set;
-} __packed;
-
 /**
  * struct ieee80211_vht_mcs_info - VHT MCS information
  * @rx_mcs_map: RX MCS map 2 bits for each stream, total 8 streams
@@ -1141,6 +1127,37 @@ struct ieee80211_vht_mcs_info {
         __le16 tx_highest;
 } __packed;
 
+/**
+ * struct ieee80211_vht_cap - VHT capabilities
+ *
+ * This structure is the "VHT capabilities element" as
+ * described in 802.11ac D3.0 8.4.2.160
+ * @vht_cap_info: VHT capability info
+ * @supp_mcs: VHT MCS supported rates
+ */
+struct ieee80211_vht_cap {
+        __le32 vht_cap_info;
+        struct ieee80211_vht_mcs_info supp_mcs;
+} __packed;
+
+/**
+ * struct ieee80211_vht_operation - VHT operation IE
+ *
+ * This structure is the "VHT operation element" as
+ * described in 802.11ac D3.0 8.4.2.161
+ * @chan_width: Operating channel width
+ * @center_freq_seg1_idx: center freq segment 1 index
+ * @center_freq_seg2_idx: center freq segment 2 index
+ * @basic_mcs_set: VHT Basic MCS rate set
+ */
+struct ieee80211_vht_operation {
+        u8 chan_width;
+        u8 center_freq_seg1_idx;
+        u8 center_freq_seg2_idx;
+        __le16 basic_mcs_set;
+} __packed;
+
+
 #define IEEE80211_VHT_MCS_ZERO_TO_SEVEN_SUPPORT 0
 #define IEEE80211_VHT_MCS_ZERO_TO_EIGHT_SUPPORT 1
 #define IEEE80211_VHT_MCS_ZERO_TO_NINE_SUPPORT  2
@@ -1440,8 +1457,6 @@ enum ieee80211_eid {
 
         WLAN_EID_RSN = 48,
         WLAN_EID_MMIE = 76,
-        WLAN_EID_WPA = 221,
-        WLAN_EID_GENERIC = 221,
         WLAN_EID_VENDOR_SPECIFIC = 221,
         WLAN_EID_QOS_PARAMETER = 222,
 
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 1b4989082244..aa0e4a12308c 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -498,6 +498,7 @@ enum station_parameters_apply_mask {
  * @plink_action: plink action to take
  * @plink_state: set the peer link state for a station
  * @ht_capa: HT capabilities of station
+ * @vht_capa: VHT capabilities of station
  * @uapsd_queues: bitmap of queues configured for uapsd. same format
  *      as the AC bitmap in the QoS info field
  * @max_sp: max Service Period. same format as the MAX_SP in the
@@ -517,6 +518,7 @@ struct station_parameters {
         u8 plink_action;
         u8 plink_state;
         struct ieee80211_ht_cap *ht_capa;
+        struct ieee80211_vht_cap *vht_capa;
         u8 uapsd_queues;
         u8 max_sp;
 };
@@ -1000,8 +1002,10 @@ struct cfg80211_ssid {
  * @n_channels: total number of channels to scan
  * @ie: optional information element(s) to add into Probe Request or %NULL
  * @ie_len: length of ie in octets
+ * @flags: bit field of flags controlling operation
  * @rates: bitmap of rates to advertise for each band
  * @wiphy: the wiphy this was for
+ * @scan_start: time (in jiffies) when the scan started
  * @wdev: the wireless device to scan for
  * @aborted: (internal) scan request was notified as aborted
  * @no_cck: used to send probe requests at non CCK rate in 2GHz band
@@ -1012,6 +1016,7 @@ struct cfg80211_scan_request {
         u32 n_channels;
         const u8 *ie;
         size_t ie_len;
+        u32 flags;
 
         u32 rates[IEEE80211_NUM_BANDS];
 
@@ -1019,6 +1024,7 @@ struct cfg80211_scan_request {
 
         /* internal */
         struct wiphy *wiphy;
+        unsigned long scan_start;
         bool aborted;
         bool no_cck;
 
@@ -1044,6 +1050,7 @@ struct cfg80211_match_set {
  * @interval: interval between each scheduled scan cycle
  * @ie: optional information element(s) to add into Probe Request or %NULL
  * @ie_len: length of ie in octets
+ * @flags: bit field of flags controlling operation
  * @match_sets: sets of parameters to be matched for a scan result
  *      entry to be considered valid and to be passed to the host
  *      (others are filtered out).
@@ -1061,6 +1068,7 @@ struct cfg80211_sched_scan_request {
         u32 interval;
         const u8 *ie;
         size_t ie_len;
+        u32 flags;
         struct cfg80211_match_set *match_sets;
         int n_match_sets;
         s32 rssi_thold;
@@ -1068,6 +1076,7 @@ struct cfg80211_sched_scan_request {
         /* internal */
         struct wiphy *wiphy;
         struct net_device *dev;
+        unsigned long scan_start;
 
         /* keep last */
         struct ieee80211_channel *channels[0];
@@ -1152,6 +1161,9 @@ const u8 *ieee80211_bss_get_ie(struct cfg80211_bss *bss, u8 ie);
  * @key_len: length of WEP key for shared key authentication
  * @key_idx: index of WEP key for shared key authentication
  * @key: WEP key for shared key authentication
+ * @sae_data: Non-IE data to use with SAE or %NULL. This starts with
+ *      Authentication transaction sequence number field.
+ * @sae_data_len: Length of sae_data buffer in octets
  */
 struct cfg80211_auth_request {
         struct cfg80211_bss *bss;
@@ -1160,6 +1172,8 @@ struct cfg80211_auth_request {
         enum nl80211_auth_type auth_type;
         const u8 *key;
         u8 key_len, key_idx;
+        const u8 *sae_data;
+        size_t sae_data_len;
 };
 
 /**
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 82558c8decf8..71c2f9c2f5be 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -144,6 +144,41 @@ struct ieee80211_low_level_stats {
 };
 
 /**
+ * enum ieee80211_chanctx_change - change flag for channel context
+ * @IEEE80211_CHANCTX_CHANGE_CHANNEL_TYPE: The channel type was changed
+ * @IEEE80211_CHANCTX_CHANGE_RX_CHAINS: The number of RX chains changed
+ */
+enum ieee80211_chanctx_change {
+        IEEE80211_CHANCTX_CHANGE_CHANNEL_TYPE   = BIT(0),
+        IEEE80211_CHANCTX_CHANGE_RX_CHAINS      = BIT(1),
+};
+
+/**
+ * struct ieee80211_chanctx_conf - channel context that vifs may be tuned to
+ *
+ * This is the driver-visible part. The ieee80211_chanctx
+ * that contains it is visible in mac80211 only.
+ *
+ * @channel: the channel to tune to
+ * @channel_type: the channel (HT) type
+ * @rx_chains_static: The number of RX chains that must always be
+ *      active on the channel to receive MIMO transmissions
+ * @rx_chains_dynamic: The number of RX chains that must be enabled
+ *      after RTS/CTS handshake to receive SMPS MIMO transmissions;
+ *      this will always be >= @rx_chains_always.
+ * @drv_priv: data area for driver use, will always be aligned to
+ *      sizeof(void *), size is determined in hw information.
+ */
+struct ieee80211_chanctx_conf {
+        struct ieee80211_channel *channel;
+        enum nl80211_channel_type channel_type;
+
+        u8 rx_chains_static, rx_chains_dynamic;
+
+        u8 drv_priv[0] __attribute__((__aligned__(sizeof(void *))));
+};
+
+/**
  * enum ieee80211_bss_change - BSS change notification flags
  *
  * These flags are used with the bss_info_changed() callback
@@ -223,6 +258,7 @@ enum ieee80211_rssi_event {
  * @assoc: association status
  * @ibss_joined: indicates whether this station is part of an IBSS
  *      or not
+ * @ibss_creator: indicates if a new IBSS network is being created
  * @aid: association ID number, valid only when @assoc is true
  * @use_cts_prot: use CTS protection
  * @use_short_preamble: use 802.11b short preamble;
@@ -278,6 +314,7 @@ struct ieee80211_bss_conf {
         const u8 *bssid;
         /* association related data */
         bool assoc, ibss_joined;
+        bool ibss_creator;
         u16 aid;
         /* erp related data */
         bool use_cts_prot;
@@ -794,6 +831,8 @@ enum ieee80211_conf_flags {
  * @IEEE80211_CONF_CHANGE_RETRY_LIMITS: retry limits changed
  * @IEEE80211_CONF_CHANGE_IDLE: Idle flag changed
  * @IEEE80211_CONF_CHANGE_SMPS: Spatial multiplexing powersave mode changed
+ *      Note that this is only valid if channel contexts are not used,
+ *      otherwise each channel context has the number of chains listed.
  */
 enum ieee80211_conf_changed {
         IEEE80211_CONF_CHANGE_SMPS              = BIT(1),
@@ -859,7 +898,9 @@ enum ieee80211_smps_mode {
  *
  * @smps_mode: spatial multiplexing powersave mode; note that
  *      %IEEE80211_SMPS_STATIC is used when the device is not
- *      configured for an HT channel
+ *      configured for an HT channel.
+ *      Note that this is only valid if channel contexts are not used,
+ *      otherwise each channel context has the number of chains listed.
  */
 struct ieee80211_conf {
         u32 flags;
@@ -931,6 +972,11 @@ enum ieee80211_vif_flags {
  *      at runtime, mac80211 will never touch this field
  * @hw_queue: hardware queue for each AC
  * @cab_queue: content-after-beacon (DTIM beacon really) queue, AP mode only
+ * @chanctx_conf: The channel context this interface is assigned to, or %NULL
+ *      when it is not assigned. This pointer is RCU-protected due to the TX
+ *      path needing to access it; even though the netdev carrier will always
+ *      be off when it is %NULL there can still be races and packets could be
+ *      processed after it switches back to %NULL.
  * @drv_priv: data area for driver use, will always be aligned to
  *      sizeof(void *).
  */
@@ -943,6 +989,8 @@ struct ieee80211_vif {
         u8 cab_queue;
         u8 hw_queue[IEEE80211_NUM_ACS];
 
+        struct ieee80211_chanctx_conf __rcu *chanctx_conf;
+
         u32 driver_flags;
 
         /* must be last */
@@ -1076,6 +1124,8 @@ enum ieee80211_sta_state {
  * @aid: AID we assigned to the station if we're an AP
  * @supp_rates: Bitmap of supported rates (per band)
  * @ht_cap: HT capabilities of this STA; restricted to our own TX capabilities
+ * @vht_cap: VHT capabilities of this STA; Not restricting any capabilities
+ *      of remote STA. Taking as is.
  * @wme: indicates whether the STA supports WME. Only valid during AP-mode.
  * @drv_priv: data area for driver use, will always be aligned to
  *      sizeof(void *), size is determined in hw information.
@@ -1088,6 +1138,7 @@ struct ieee80211_sta {
         u8 addr[ETH_ALEN];
         u16 aid;
         struct ieee80211_sta_ht_cap ht_cap;
+        struct ieee80211_sta_vht_cap vht_cap;
         bool wme;
         u8 uapsd_queues;
         u8 max_sp;
@@ -1325,6 +1376,8 @@ enum ieee80211_hw_flags {
  *      within &struct ieee80211_vif.
  * @sta_data_size: size (in bytes) of the drv_priv data area
  *      within &struct ieee80211_sta.
+ * @chanctx_data_size: size (in bytes) of the drv_priv data area
+ *      within &struct ieee80211_chanctx_conf.
  *
  * @max_rates: maximum number of alternate rate retry stages the hw
  *      can handle.
@@ -1369,6 +1422,7 @@ struct ieee80211_hw {
         int channel_change_time;
         int vif_data_size;
         int sta_data_size;
+        int chanctx_data_size;
         int napi_weight;
         u16 queues;
         u16 max_listen_interval;
@@ -2317,6 +2371,16 @@ enum ieee80211_rate_control_changed {
  *      The callback will be called before each transmission and upon return
  *      mac80211 will transmit the frame right away.
  *      The callback is optional and can (should!) sleep.
+ *
+ * @add_chanctx: Notifies device driver about new channel context creation.
+ * @remove_chanctx: Notifies device driver about channel context destruction.
+ * @change_chanctx: Notifies device driver about channel context changes that
+ *      may happen when combining different virtual interfaces on the same
+ *      channel context with different settings
+ * @assign_vif_chanctx: Notifies device driver about channel context being bound
+ *      to vif. Possible use is for hw queue remapping.
+ * @unassign_vif_chanctx: Notifies device driver about channel context being
+ *      unbound from vif.
  */
 struct ieee80211_ops {
         void (*tx)(struct ieee80211_hw *hw,
@@ -2461,6 +2525,20 @@ struct ieee80211_ops {
 
         void    (*mgd_prepare_tx)(struct ieee80211_hw *hw,
                                   struct ieee80211_vif *vif);
+
+        int (*add_chanctx)(struct ieee80211_hw *hw,
+                           struct ieee80211_chanctx_conf *ctx);
+        void (*remove_chanctx)(struct ieee80211_hw *hw,
+                               struct ieee80211_chanctx_conf *ctx);
+        void (*change_chanctx)(struct ieee80211_hw *hw,
+                               struct ieee80211_chanctx_conf *ctx,
+                               u32 changed);
+        int (*assign_vif_chanctx)(struct ieee80211_hw *hw,
+                                  struct ieee80211_vif *vif,
+                                  struct ieee80211_chanctx_conf *ctx);
+        void (*unassign_vif_chanctx)(struct ieee80211_hw *hw,
+                                     struct ieee80211_vif *vif,
+                                     struct ieee80211_chanctx_conf *ctx);
 };
 
 /**
@@ -3524,6 +3602,27 @@ void ieee80211_iter_keys(struct ieee80211_hw *hw,
                          void *iter_data);
 
 /**
+ * ieee80211_iter_chan_contexts_atomic - iterate channel contexts
+ * @hw: pointre obtained from ieee80211_alloc_hw().
+ * @iter: iterator function
+ * @iter_data: data passed to iterator function
+ *
+ * Iterate all active channel contexts. This function is atomic and
+ * doesn't acquire any locks internally that might be held in other
+ * places while calling into the driver.
+ *
+ * The iterator will not find a context that's being added (during
+ * the driver callback to add it) but will find it while it's being
+ * removed.
+ */
+void ieee80211_iter_chan_contexts_atomic(
+        struct ieee80211_hw *hw,
+        void (*iter)(struct ieee80211_hw *hw,
+                     struct ieee80211_chanctx_conf *chanctx_conf,
+                     void *data),
+        void *iter_data);
+
+/**
  * ieee80211_ap_probereq_get - retrieve a Probe Request template
  * @hw: pointer obtained from ieee80211_alloc_hw().
  * @vif: &struct ieee80211_vif pointer from the add_interface callback.
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 7df9b500c804..617d0fbfc96f 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -1273,6 +1273,14 @@ enum nl80211_commands {
  *      the connection request from a station. nl80211_connect_failed_reason
  *      enum has different reasons of connection failure.
  *
+ * @NL80211_ATTR_SAE_DATA: SAE elements in Authentication frames. This starts
+ *      with the Authentication transaction sequence number field.
+ *
+ * @NL80211_ATTR_VHT_CAPABILITY: VHT Capability information element (from
+ *      association request when used with NL80211_CMD_NEW_STATION)
+ *
+ * @NL80211_ATTR_SCAN_FLAGS: scan request control flags (u32)
+ *
  * @NL80211_ATTR_MAX: highest attribute number currently defined
  * @__NL80211_ATTR_AFTER_LAST: internal use
  */
@@ -1530,6 +1538,12 @@ enum nl80211_attrs {
 
         NL80211_ATTR_CONN_FAILED_REASON,
 
+        NL80211_ATTR_SAE_DATA,
+
+        NL80211_ATTR_VHT_CAPABILITY,
+
+        NL80211_ATTR_SCAN_FLAGS,
+
         /* add attributes here, update the policy in nl80211.c */
 
         __NL80211_ATTR_AFTER_LAST,
@@ -1573,6 +1587,7 @@ enum nl80211_attrs {
 #define NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY     16
 #define NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY     24
 #define NL80211_HT_CAPABILITY_LEN               26
+#define NL80211_VHT_CAPABILITY_LEN              12
 
 #define NL80211_MAX_NR_CIPHER_SUITES            5
 #define NL80211_MAX_NR_AKM_SUITES               2
@@ -2489,6 +2504,7 @@ enum nl80211_bss_status {
  * @NL80211_AUTHTYPE_SHARED_KEY: Shared Key authentication (WEP only)
  * @NL80211_AUTHTYPE_FT: Fast BSS Transition (IEEE 802.11r)
  * @NL80211_AUTHTYPE_NETWORK_EAP: Network EAP (some Cisco APs and mainly LEAP)
+ * @NL80211_AUTHTYPE_SAE: Simultaneous authentication of equals
  * @__NL80211_AUTHTYPE_NUM: internal
  * @NL80211_AUTHTYPE_MAX: maximum valid auth algorithm
  * @NL80211_AUTHTYPE_AUTOMATIC: determine automatically (if necessary by
@@ -2500,6 +2516,7 @@ enum nl80211_auth_type {
         NL80211_AUTHTYPE_SHARED_KEY,
         NL80211_AUTHTYPE_FT,
         NL80211_AUTHTYPE_NETWORK_EAP,
+        NL80211_AUTHTYPE_SAE,
 
         /* keep last */
         __NL80211_AUTHTYPE_NUM,
@@ -3028,6 +3045,12 @@ enum nl80211_ap_sme_features {
  *      in the interface combinations, even when it's only used for scan
  *      and remain-on-channel. This could be due to, for example, the
  *      remain-on-channel implementation requiring a channel context.
+ * @NL80211_FEATURE_SAE: This driver supports simultaneous authentication of
+ *      equals (SAE) with user space SME (NL80211_CMD_AUTHENTICATE) in station
+ *      mode
+ * @NL80211_FEATURE_LOW_PRIORITY_SCAN: This driver supports low priority scan
+ * @NL80211_FEATURE_SCAN_FLUSH: Scan flush is supported
+ * @NL80211_FEATURE_AP_SCAN: Support scanning using an AP vif
  */
 enum nl80211_feature_flags {
         NL80211_FEATURE_SK_TX_STATUS                    = 1 << 0,
@@ -3035,6 +3058,10 @@ enum nl80211_feature_flags {
         NL80211_FEATURE_INACTIVITY_TIMER                = 1 << 2,
         NL80211_FEATURE_CELL_BASE_REG_HINTS             = 1 << 3,
         NL80211_FEATURE_P2P_DEVICE_NEEDS_CHANNEL        = 1 << 4,
+        NL80211_FEATURE_SAE                             = 1 << 5,
+        NL80211_FEATURE_LOW_PRIORITY_SCAN               = 1 << 6,
+        NL80211_FEATURE_SCAN_FLUSH                      = 1 << 7,
+        NL80211_FEATURE_AP_SCAN                         = 1 << 8,
 };
 
 /**
@@ -3069,4 +3096,25 @@ enum nl80211_connect_failed_reason {
         NL80211_CONN_FAIL_BLOCKED_CLIENT,
 };
 
+/**
+ * enum nl80211_scan_flags -  scan request control flags
+ *
+ * Scan request control flags are used to control the handling
+ * of NL80211_CMD_TRIGGER_SCAN and NL80211_CMD_START_SCHED_SCAN
+ * requests.
+ *
+ * @NL80211_SCAN_FLAG_LOW_PRIORITY: scan request has low priority
+ * @NL80211_SCAN_FLAG_FLUSH: flush cache before scanning
+ * @NL80211_SCAN_FLAG_AP: force a scan even if the interface is configured
+ *      as AP and the beaconing has already been configured. This attribute is
+ *      dangerous because will destroy stations performance as a lot of frames
+ *      will be lost while scanning off-channel, therefore it must be used only
+ *      when really needed
+ */
+enum nl80211_scan_flags {
+        NL80211_SCAN_FLAG_LOW_PRIORITY                  = 1<<0,
+        NL80211_SCAN_FLAG_FLUSH                         = 1<<1,
+        NL80211_SCAN_FLAG_AP                            = 1<<2,
+};
+
 #endif /* __LINUX_NL80211_H */