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

1 files changed, 234 insertions, 5 deletions

diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 9a2ecdc4136c..c46bb016f4e4 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -603,6 +603,14 @@
  *      command is used in AP/P2P GO mode. Driver has to make sure to clear its
  *      ACL list during %NL80211_CMD_STOP_AP.
  *
+ * @NL80211_CMD_RADAR_DETECT: Start a Channel availability check (CAC). Once
+ *      a radar is detected or the channel availability scan (CAC) has finished
+ *      or was aborted, or a radar was detected, usermode will be notified with
+ *      this event. This command is also used to notify userspace about radars
+ *      while operating on this channel.
+ *      %NL80211_ATTR_RADAR_EVENT is used to inform about the type of the
+ *      event.
+ *
  * @NL80211_CMD_MAX: highest used command number
  * @__NL80211_CMD_AFTER_LAST: internal use
  */
@@ -755,6 +763,8 @@ enum nl80211_commands {
 
         NL80211_CMD_SET_MAC_ACL,
 
+        NL80211_CMD_RADAR_DETECT,
+
         /* add new commands above here */
 
         /* used to define NL80211_CMD_MAX below */
@@ -1342,6 +1352,22 @@ enum nl80211_commands {
  *      number of MAC addresses that a device can support for MAC
  *      ACL.
  *
+ * @NL80211_ATTR_RADAR_EVENT: Type of radar event for notification to userspace,
+ *      contains a value of enum nl80211_radar_event (u32).
+ *
+ * @NL80211_ATTR_EXT_CAPA: 802.11 extended capabilities that the kernel driver
+ *      has and handles. The format is the same as the IE contents. See
+ *      802.11-2012 8.4.2.29 for more information.
+ * @NL80211_ATTR_EXT_CAPA_MASK: Extended capabilities that the kernel driver
+ *      has set in the %NL80211_ATTR_EXT_CAPA value, for multibit fields.
+ *
+ * @NL80211_ATTR_STA_CAPABILITY: Station capabilities (u16) are advertised to
+ *      the driver, e.g., to enable TDLS power save (PU-APSD).
+ *
+ * @NL80211_ATTR_STA_EXT_CAPABILITY: Station extended capabilities are
+ *      advertised to the driver, e.g., to enable TDLS off channel operations
+ *      and PU-APSD.
+ *
  * @NL80211_ATTR_MAX: highest attribute number currently defined
  * @__NL80211_ATTR_AFTER_LAST: internal use
  */
@@ -1620,6 +1646,14 @@ enum nl80211_attrs {
 
         NL80211_ATTR_MAC_ACL_MAX,
 
+        NL80211_ATTR_RADAR_EVENT,
+
+        NL80211_ATTR_EXT_CAPA,
+        NL80211_ATTR_EXT_CAPA_MASK,
+
+        NL80211_ATTR_STA_CAPABILITY,
+        NL80211_ATTR_STA_EXT_CAPABILITY,
+
         /* add attributes here, update the policy in nl80211.c */
 
         __NL80211_ATTR_AFTER_LAST,
@@ -2022,6 +2056,20 @@ enum nl80211_band_attr {
  *      on this channel in current regulatory domain.
  * @NL80211_FREQUENCY_ATTR_MAX_TX_POWER: Maximum transmission power in mBm
  *      (100 * dBm).
+ * @NL80211_FREQUENCY_ATTR_DFS_STATE: current state for DFS
+ *      (enum nl80211_dfs_state)
+ * @NL80211_FREQUENCY_ATTR_DFS_TIME: time in miliseconds for how long
+ *      this channel is in this DFS state.
+ * @NL80211_FREQUENCY_ATTR_NO_HT40_MINUS: HT40- isn't possible with this
+ *      channel as the control channel
+ * @NL80211_FREQUENCY_ATTR_NO_HT40_PLUS: HT40+ isn't possible with this
+ *      channel as the control channel
+ * @NL80211_FREQUENCY_ATTR_NO_80MHZ: any 80 MHz channel using this channel
+ *      as the primary or any of the secondary channels isn't possible,
+ *      this includes 80+80 channels
+ * @NL80211_FREQUENCY_ATTR_NO_160MHZ: any 160 MHz (but not 80+80) channel
+ *      using this channel as the primary or any of the secondary channels
+ *      isn't possible
  * @NL80211_FREQUENCY_ATTR_MAX: highest frequency attribute number
  *      currently defined
  * @__NL80211_FREQUENCY_ATTR_AFTER_LAST: internal use
@@ -2034,6 +2082,12 @@ enum nl80211_frequency_attr {
         NL80211_FREQUENCY_ATTR_NO_IBSS,
         NL80211_FREQUENCY_ATTR_RADAR,
         NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
+        NL80211_FREQUENCY_ATTR_DFS_STATE,
+        NL80211_FREQUENCY_ATTR_DFS_TIME,
+        NL80211_FREQUENCY_ATTR_NO_HT40_MINUS,
+        NL80211_FREQUENCY_ATTR_NO_HT40_PLUS,
+        NL80211_FREQUENCY_ATTR_NO_80MHZ,
+        NL80211_FREQUENCY_ATTR_NO_160MHZ,
 
         /* keep last */
         __NL80211_FREQUENCY_ATTR_AFTER_LAST,
@@ -2906,10 +2960,12 @@ enum nl80211_tx_power_setting {
  *      corresponds to the lowest-order bit in the second byte of the mask.
  *      For example: The match 00:xx:00:00:xx:00:00:00:00:xx:xx:xx (where
  *      xx indicates "don't care") would be represented by a pattern of
- *      twelve zero bytes, and a mask of "0xed,0x07".
+ *      twelve zero bytes, and a mask of "0xed,0x01".
  *      Note that the pattern matching is done as though frames were not
  *      802.11 frames but 802.3 frames, i.e. the frame is fully unpacked
  *      first (including SNAP header unpacking) and then matched.
+ * @NL80211_WOWLAN_PKTPAT_OFFSET: packet offset, pattern is matched after
+ *      these fixed number of bytes of received packet
  * @NUM_NL80211_WOWLAN_PKTPAT: number of attributes
  * @MAX_NL80211_WOWLAN_PKTPAT: max attribute number
  */
@@ -2917,6 +2973,7 @@ enum nl80211_wowlan_packet_pattern_attr {
         __NL80211_WOWLAN_PKTPAT_INVALID,
         NL80211_WOWLAN_PKTPAT_MASK,
         NL80211_WOWLAN_PKTPAT_PATTERN,
+        NL80211_WOWLAN_PKTPAT_OFFSET,
 
         NUM_NL80211_WOWLAN_PKTPAT,
         MAX_NL80211_WOWLAN_PKTPAT = NUM_NL80211_WOWLAN_PKTPAT - 1,
@@ -2927,6 +2984,7 @@ enum nl80211_wowlan_packet_pattern_attr {
  * @max_patterns: maximum number of patterns supported
  * @min_pattern_len: minimum length of each pattern
  * @max_pattern_len: maximum length of each pattern
+ * @max_pkt_offset: maximum Rx packet offset
  *
  * This struct is carried in %NL80211_WOWLAN_TRIG_PKT_PATTERN when
  * that is part of %NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED in the
@@ -2936,6 +2994,7 @@ struct nl80211_wowlan_pattern_support {
         __u32 max_patterns;
         __u32 min_pattern_len;
         __u32 max_pattern_len;
+        __u32 max_pkt_offset;
 } __attribute__((packed));
 
 /**
@@ -2951,9 +3010,10 @@ struct nl80211_wowlan_pattern_support {
  * @NL80211_WOWLAN_TRIG_PKT_PATTERN: wake up on the specified packet patterns
  *      which are passed in an array of nested attributes, each nested attribute
  *      defining a with attributes from &struct nl80211_wowlan_trig_pkt_pattern.
- *      Each pattern defines a wakeup packet. The matching is done on the MSDU,
- *      i.e. as though the packet was an 802.3 packet, so the pattern matching
- *      is done after the packet is converted to the MSDU.
+ *      Each pattern defines a wakeup packet. Packet offset is associated with
+ *      each pattern which is used while matching the pattern. The matching is
+ *      done on the MSDU, i.e. as though the packet was an 802.3 packet, so the
+ *      pattern matching is done after the packet is converted to the MSDU.
  *
  *      In %NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED, it is a binary attribute
  *      carrying a &struct nl80211_wowlan_pattern_support.
@@ -2985,6 +3045,17 @@ struct nl80211_wowlan_pattern_support {
  * @NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN: Original length of the 802.3
  *      packet, may be bigger than the @NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023
  *      attribute if the packet was truncated somewhere.
+ * @NL80211_WOWLAN_TRIG_TCP_CONNECTION: TCP connection wake, see DOC section
+ *      "TCP connection wakeup" for more details. This is a nested attribute
+ *      containing the exact information for establishing and keeping alive
+ *      the TCP connection.
+ * @NL80211_WOWLAN_TRIG_TCP_WAKEUP_MATCH: For wakeup reporting only, the
+ *      wakeup packet was received on the TCP connection
+ * @NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST: For wakeup reporting only, the
+ *      TCP connection was lost or failed to be established
+ * @NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS: For wakeup reporting only,
+ *      the TCP connection ran out of tokens to use for data to send to the
+ *      service
  * @NUM_NL80211_WOWLAN_TRIG: number of wake on wireless triggers
  * @MAX_NL80211_WOWLAN_TRIG: highest wowlan trigger attribute number
  *
@@ -3006,6 +3077,10 @@ enum nl80211_wowlan_triggers {
         NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN,
         NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023,
         NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN,
+        NL80211_WOWLAN_TRIG_TCP_CONNECTION,
+        NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH,
+        NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST,
+        NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS,
 
         /* keep last */
         NUM_NL80211_WOWLAN_TRIG,
@@ -3013,6 +3088,116 @@ enum nl80211_wowlan_triggers {
 };
 
 /**
+ * DOC: TCP connection wakeup
+ *
+ * Some devices can establish a TCP connection in order to be woken up by a
+ * packet coming in from outside their network segment, or behind NAT. If
+ * configured, the device will establish a TCP connection to the given
+ * service, and periodically send data to that service. The first data
+ * packet is usually transmitted after SYN/ACK, also ACKing the SYN/ACK.
+ * The data packets can optionally include a (little endian) sequence
+ * number (in the TCP payload!) that is generated by the device, and, also
+ * optionally, a token from a list of tokens. This serves as a keep-alive
+ * with the service, and for NATed connections, etc.
+ *
+ * During this keep-alive period, the server doesn't send any data to the
+ * client. When receiving data, it is compared against the wakeup pattern
+ * (and mask) and if it matches, the host is woken up. Similarly, if the
+ * connection breaks or cannot be established to start with, the host is
+ * also woken up.
+ *
+ * Developer's note: ARP offload is required for this, otherwise TCP
+ * response packets might not go through correctly.
+ */
+
+/**
+ * struct nl80211_wowlan_tcp_data_seq - WoWLAN TCP data sequence
+ * @start: starting value
+ * @offset: offset of sequence number in packet
+ * @len: length of the sequence value to write, 1 through 4
+ *
+ * Note: don't confuse with the TCP sequence number(s), this is for the
+ * keepalive packet payload. The actual value is written into the packet
+ * in little endian.
+ */
+struct nl80211_wowlan_tcp_data_seq {
+        __u32 start, offset, len;
+};
+
+/**
+ * struct nl80211_wowlan_tcp_data_token - WoWLAN TCP data token config
+ * @offset: offset of token in packet
+ * @len: length of each token
+ * @token_stream: stream of data to be used for the tokens, the length must
+ *      be a multiple of @len for this to make sense
+ */
+struct nl80211_wowlan_tcp_data_token {
+        __u32 offset, len;
+        __u8 token_stream[];
+};
+
+/**
+ * struct nl80211_wowlan_tcp_data_token_feature - data token features
+ * @min_len: minimum token length
+ * @max_len: maximum token length
+ * @bufsize: total available token buffer size (max size of @token_stream)
+ */
+struct nl80211_wowlan_tcp_data_token_feature {
+        __u32 min_len, max_len, bufsize;
+};
+
+/**
+ * enum nl80211_wowlan_tcp_attrs - WoWLAN TCP connection parameters
+ * @__NL80211_WOWLAN_TCP_INVALID: invalid number for nested attributes
+ * @NL80211_WOWLAN_TCP_SRC_IPV4: source IPv4 address (in network byte order)
+ * @NL80211_WOWLAN_TCP_DST_IPV4: destination IPv4 address
+ *      (in network byte order)
+ * @NL80211_WOWLAN_TCP_DST_MAC: destination MAC address, this is given because
+ *      route lookup when configured might be invalid by the time we suspend,
+ *      and doing a route lookup when suspending is no longer possible as it
+ *      might require ARP querying.
+ * @NL80211_WOWLAN_TCP_SRC_PORT: source port (u16); optional, if not given a
+ *      socket and port will be allocated
+ * @NL80211_WOWLAN_TCP_DST_PORT: destination port (u16)
+ * @NL80211_WOWLAN_TCP_DATA_PAYLOAD: data packet payload, at least one byte.
+ *      For feature advertising, a u32 attribute holding the maximum length
+ *      of the data payload.
+ * @NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ: data packet sequence configuration
+ *      (if desired), a &struct nl80211_wowlan_tcp_data_seq. For feature
+ *      advertising it is just a flag
+ * @NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN: data packet token configuration,
+ *      see &struct nl80211_wowlan_tcp_data_token and for advertising see
+ *      &struct nl80211_wowlan_tcp_data_token_feature.
+ * @NL80211_WOWLAN_TCP_DATA_INTERVAL: data interval in seconds, maximum
+ *      interval in feature advertising (u32)
+ * @NL80211_WOWLAN_TCP_WAKE_PAYLOAD: wake packet payload, for advertising a
+ *      u32 attribute holding the maximum length
+ * @NL80211_WOWLAN_TCP_WAKE_MASK: Wake packet payload mask, not used for
+ *      feature advertising. The mask works like @NL80211_WOWLAN_PKTPAT_MASK
+ *      but on the TCP payload only.
+ * @NUM_NL80211_WOWLAN_TCP: number of TCP attributes
+ * @MAX_NL80211_WOWLAN_TCP: highest attribute number
+ */
+enum nl80211_wowlan_tcp_attrs {
+        __NL80211_WOWLAN_TCP_INVALID,
+        NL80211_WOWLAN_TCP_SRC_IPV4,
+        NL80211_WOWLAN_TCP_DST_IPV4,
+        NL80211_WOWLAN_TCP_DST_MAC,
+        NL80211_WOWLAN_TCP_SRC_PORT,
+        NL80211_WOWLAN_TCP_DST_PORT,
+        NL80211_WOWLAN_TCP_DATA_PAYLOAD,
+        NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
+        NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
+        NL80211_WOWLAN_TCP_DATA_INTERVAL,
+        NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
+        NL80211_WOWLAN_TCP_WAKE_MASK,
+
+        /* keep last */
+        NUM_NL80211_WOWLAN_TCP,
+        MAX_NL80211_WOWLAN_TCP = NUM_NL80211_WOWLAN_TCP - 1
+};
+
+/**
  * enum nl80211_iface_limit_attrs - limit attributes
  * @NL80211_IFACE_LIMIT_UNSPEC: (reserved)
  * @NL80211_IFACE_LIMIT_MAX: maximum number of interfaces that
@@ -3269,6 +3454,8 @@ enum nl80211_ap_sme_features {
  *      Note that even for drivers that support this, the default is to add
  *      stations in authenticated/associated state, so to add unauthenticated
  *      stations the authenticated/associated bits have to be set in the mask.
+ * @NL80211_FEATURE_ADVERTISE_CHAN_LIMITS: cfg80211 advertises channel limits
+ *      (HT40, VHT 80/160 MHz) if this flag is set
  */
 enum nl80211_feature_flags {
         NL80211_FEATURE_SK_TX_STATUS                    = 1 << 0,
@@ -3284,7 +3471,9 @@ enum nl80211_feature_flags {
         NL80211_FEATURE_NEED_OBSS_SCAN                  = 1 << 10,
         NL80211_FEATURE_P2P_GO_CTWIN                    = 1 << 11,
         NL80211_FEATURE_P2P_GO_OPPPS                    = 1 << 12,
-        NL80211_FEATURE_FULL_AP_CLIENT_STATE            = 1 << 13,
+        /* bit 13 is reserved */
+        NL80211_FEATURE_ADVERTISE_CHAN_LIMITS           = 1 << 14,
+        NL80211_FEATURE_FULL_AP_CLIENT_STATE            = 1 << 15,
 };
 
 /**
@@ -3358,4 +3547,44 @@ enum nl80211_acl_policy {
         NL80211_ACL_POLICY_DENY_UNLESS_LISTED,
 };
 
+/**
+ * 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
+ * about detected radars or success of the channel available check (CAC)
+ *
+ * @NL80211_RADAR_DETECTED: A radar pattern has been detected. The channel is
+ *      now unusable.
+ * @NL80211_RADAR_CAC_FINISHED: Channel Availability Check has been finished,
+ *      the channel is now available.
+ * @NL80211_RADAR_CAC_ABORTED: Channel Availability Check has been aborted, no
+ *      change to the channel status.
+ * @NL80211_RADAR_NOP_FINISHED: The Non-Occupancy Period for this channel is
+ *      over, channel becomes usable.
+ */
+enum nl80211_radar_event {
+        NL80211_RADAR_DETECTED,
+        NL80211_RADAR_CAC_FINISHED,
+        NL80211_RADAR_CAC_ABORTED,
+        NL80211_RADAR_NOP_FINISHED,
+};
+
+/**
+ * enum nl80211_dfs_state - DFS states for channels
+ *
+ * Channel states used by the DFS code.
+ *
+ * @IEEE80211_DFS_USABLE: The channel can be used, but channel availability
+ *      check (CAC) must be performed before using it for AP or IBSS.
+ * @IEEE80211_DFS_UNAVAILABLE: A radar has been detected on this channel, it
+ *      is therefore marked as not available.
+ * @IEEE80211_DFS_AVAILABLE: The channel has been CAC checked and is available.
+ */
+
+enum nl80211_dfs_state {
+        NL80211_DFS_USABLE,
+        NL80211_DFS_UNAVAILABLE,
+        NL80211_DFS_AVAILABLE,
+};
+
 #endif /* __LINUX_NL80211_H */