1 #ifndef __NET_CFG80211_H 2 #define __NET_CFG80211_H 3 4 #include <linux/netlink.h> 5 #include <linux/skbuff.h> 6 #include <linux/nl80211.h> 7 #include <net/genetlink.h> 8 9 /* 10 * 802.11 configuration in-kernel interface 11 * 12 * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net> 13 */ 14 15 /** 16 * struct vif_params - describes virtual interface parameters 17 * @mesh_id: mesh ID to use 18 * @mesh_id_len: length of the mesh ID 19 */ 20 struct vif_params { 21 u8 *mesh_id; 22 int mesh_id_len; 23 }; 24 25 /* Radiotap header iteration 26 * implemented in net/wireless/radiotap.c 27 * docs in Documentation/networking/radiotap-headers.txt 28 */ 29 /** 30 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args 31 * @rtheader: pointer to the radiotap header we are walking through 32 * @max_length: length of radiotap header in cpu byte ordering 33 * @this_arg_index: IEEE80211_RADIOTAP_... index of current arg 34 * @this_arg: pointer to current radiotap arg 35 * @arg_index: internal next argument index 36 * @arg: internal next argument pointer 37 * @next_bitmap: internal pointer to next present u32 38 * @bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present 39 */ 40 41 struct ieee80211_radiotap_iterator { 42 struct ieee80211_radiotap_header *rtheader; 43 int max_length; 44 int this_arg_index; 45 u8 *this_arg; 46 47 int arg_index; 48 u8 *arg; 49 __le32 *next_bitmap; 50 u32 bitmap_shifter; 51 }; 52 53 extern int ieee80211_radiotap_iterator_init( 54 struct ieee80211_radiotap_iterator *iterator, 55 struct ieee80211_radiotap_header *radiotap_header, 56 int max_length); 57 58 extern int ieee80211_radiotap_iterator_next( 59 struct ieee80211_radiotap_iterator *iterator); 60 61 62 /** 63 * struct key_params - key information 64 * 65 * Information about a key 66 * 67 * @key: key material 68 * @key_len: length of key material 69 * @cipher: cipher suite selector 70 * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used 71 * with the get_key() callback, must be in little endian, 72 * length given by @seq_len. 73 */ 74 struct key_params { 75 u8 *key; 76 u8 *seq; 77 int key_len; 78 int seq_len; 79 u32 cipher; 80 }; 81 82 /** 83 * struct beacon_parameters - beacon parameters 84 * 85 * Used to configure the beacon for an interface. 86 * 87 * @head: head portion of beacon (before TIM IE) 88 * or %NULL if not changed 89 * @tail: tail portion of beacon (after TIM IE) 90 * or %NULL if not changed 91 * @interval: beacon interval or zero if not changed 92 * @dtim_period: DTIM period or zero if not changed 93 * @head_len: length of @head 94 * @tail_len: length of @tail 95 */ 96 struct beacon_parameters { 97 u8 *head, *tail; 98 int interval, dtim_period; 99 int head_len, tail_len; 100 }; 101 102 /** 103 * enum station_flags - station flags 104 * 105 * Station capability flags. Note that these must be the bits 106 * according to the nl80211 flags. 107 * 108 * @STATION_FLAG_CHANGED: station flags were changed 109 * @STATION_FLAG_AUTHORIZED: station is authorized to send frames (802.1X) 110 * @STATION_FLAG_SHORT_PREAMBLE: station is capable of receiving frames 111 * with short preambles 112 * @STATION_FLAG_WME: station is WME/QoS capable 113 */ 114 enum station_flags { 115 STATION_FLAG_CHANGED = 1<<0, 116 STATION_FLAG_AUTHORIZED = 1<<NL80211_STA_FLAG_AUTHORIZED, 117 STATION_FLAG_SHORT_PREAMBLE = 1<<NL80211_STA_FLAG_SHORT_PREAMBLE, 118 STATION_FLAG_WME = 1<<NL80211_STA_FLAG_WME, 119 }; 120 121 /** 122 * enum plink_action - actions to perform in mesh peers 123 * 124 * @PLINK_ACTION_INVALID: action 0 is reserved 125 * @PLINK_ACTION_OPEN: start mesh peer link establishment 126 * @PLINK_ACTION_BLOCL: block traffic from this mesh peer 127 */ 128 enum plink_actions { 129 PLINK_ACTION_INVALID, 130 PLINK_ACTION_OPEN, 131 PLINK_ACTION_BLOCK, 132 }; 133 134 /** 135 * struct station_parameters - station parameters 136 * 137 * Used to change and create a new station. 138 * 139 * @vlan: vlan interface station should belong to 140 * @supported_rates: supported rates in IEEE 802.11 format 141 * (or NULL for no change) 142 * @supported_rates_len: number of supported rates 143 * @station_flags: station flags (see &enum station_flags) 144 * @listen_interval: listen interval or -1 for no change 145 * @aid: AID or zero for no change 146 */ 147 struct station_parameters { 148 u8 *supported_rates; 149 struct net_device *vlan; 150 u32 station_flags; 151 int listen_interval; 152 u16 aid; 153 u8 supported_rates_len; 154 u8 plink_action; 155 }; 156 157 /** 158 * enum station_info_flags - station information flags 159 * 160 * Used by the driver to indicate which info in &struct station_info 161 * it has filled in during get_station() or dump_station(). 162 * 163 * @STATION_INFO_INACTIVE_TIME: @inactive_time filled 164 * @STATION_INFO_RX_BYTES: @rx_bytes filled 165 * @STATION_INFO_TX_BYTES: @tx_bytes filled 166 * @STATION_INFO_LLID: @llid filled 167 * @STATION_INFO_PLID: @plid filled 168 * @STATION_INFO_PLINK_STATE: @plink_state filled 169 */ 170 enum station_info_flags { 171 STATION_INFO_INACTIVE_TIME = 1<<0, 172 STATION_INFO_RX_BYTES = 1<<1, 173 STATION_INFO_TX_BYTES = 1<<2, 174 STATION_INFO_LLID = 1<<3, 175 STATION_INFO_PLID = 1<<4, 176 STATION_INFO_PLINK_STATE = 1<<5, 177 }; 178 179 /** 180 * struct station_info - station information 181 * 182 * Station information filled by driver for get_station() and dump_station. 183 * 184 * @filled: bitflag of flags from &enum station_info_flags 185 * @inactive_time: time since last station activity (tx/rx) in milliseconds 186 * @rx_bytes: bytes received from this station 187 * @tx_bytes: bytes transmitted to this station 188 * @llid: mesh local link id 189 * @plid: mesh peer link id 190 * @plink_state: mesh peer link state 191 */ 192 struct station_info { 193 u32 filled; 194 u32 inactive_time; 195 u32 rx_bytes; 196 u32 tx_bytes; 197 u16 llid; 198 u16 plid; 199 u8 plink_state; 200 }; 201 202 /** 203 * enum monitor_flags - monitor flags 204 * 205 * Monitor interface configuration flags. Note that these must be the bits 206 * according to the nl80211 flags. 207 * 208 * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS 209 * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP 210 * @MONITOR_FLAG_CONTROL: pass control frames 211 * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering 212 * @MONITOR_FLAG_COOK_FRAMES: report frames after processing 213 */ 214 enum monitor_flags { 215 MONITOR_FLAG_FCSFAIL = 1<<NL80211_MNTR_FLAG_FCSFAIL, 216 MONITOR_FLAG_PLCPFAIL = 1<<NL80211_MNTR_FLAG_PLCPFAIL, 217 MONITOR_FLAG_CONTROL = 1<<NL80211_MNTR_FLAG_CONTROL, 218 MONITOR_FLAG_OTHER_BSS = 1<<NL80211_MNTR_FLAG_OTHER_BSS, 219 MONITOR_FLAG_COOK_FRAMES = 1<<NL80211_MNTR_FLAG_COOK_FRAMES, 220 }; 221 222 /** 223 * enum mpath_info_flags - mesh path information flags 224 * 225 * Used by the driver to indicate which info in &struct mpath_info it has filled 226 * in during get_station() or dump_station(). 227 * 228 * MPATH_INFO_FRAME_QLEN: @frame_qlen filled 229 * MPATH_INFO_DSN: @dsn filled 230 * MPATH_INFO_METRIC: @metric filled 231 * MPATH_INFO_EXPTIME: @exptime filled 232 * MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled 233 * MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled 234 * MPATH_INFO_FLAGS: @flags filled 235 */ 236 enum mpath_info_flags { 237 MPATH_INFO_FRAME_QLEN = BIT(0), 238 MPATH_INFO_DSN = BIT(1), 239 MPATH_INFO_METRIC = BIT(2), 240 MPATH_INFO_EXPTIME = BIT(3), 241 MPATH_INFO_DISCOVERY_TIMEOUT = BIT(4), 242 MPATH_INFO_DISCOVERY_RETRIES = BIT(5), 243 MPATH_INFO_FLAGS = BIT(6), 244 }; 245 246 /** 247 * struct mpath_info - mesh path information 248 * 249 * Mesh path information filled by driver for get_mpath() and dump_mpath(). 250 * 251 * @filled: bitfield of flags from &enum mpath_info_flags 252 * @frame_qlen: number of queued frames for this destination 253 * @dsn: destination sequence number 254 * @metric: metric (cost) of this mesh path 255 * @exptime: expiration time for the mesh path from now, in msecs 256 * @flags: mesh path flags 257 * @discovery_timeout: total mesh path discovery timeout, in msecs 258 * @discovery_retries: mesh path discovery retries 259 */ 260 struct mpath_info { 261 u32 filled; 262 u32 frame_qlen; 263 u32 dsn; 264 u32 metric; 265 u32 exptime; 266 u32 discovery_timeout; 267 u8 discovery_retries; 268 u8 flags; 269 }; 270 271 272 /* from net/wireless.h */ 273 struct wiphy; 274 275 /** 276 * struct cfg80211_ops - backend description for wireless configuration 277 * 278 * This struct is registered by fullmac card drivers and/or wireless stacks 279 * in order to handle configuration requests on their interfaces. 280 * 281 * All callbacks except where otherwise noted should return 0 282 * on success or a negative error code. 283 * 284 * All operations are currently invoked under rtnl for consistency with the 285 * wireless extensions but this is subject to reevaluation as soon as this 286 * code is used more widely and we have a first user without wext. 287 * 288 * @add_virtual_intf: create a new virtual interface with the given name 289 * 290 * @del_virtual_intf: remove the virtual interface determined by ifindex. 291 * 292 * @change_virtual_intf: change type of virtual interface 293 * 294 * @add_key: add a key with the given parameters. @mac_addr will be %NULL 295 * when adding a group key. 296 * 297 * @get_key: get information about the key with the given parameters. 298 * @mac_addr will be %NULL when requesting information for a group 299 * key. All pointers given to the @callback function need not be valid 300 * after it returns. 301 * 302 * @del_key: remove a key given the @mac_addr (%NULL for a group key) 303 * and @key_index 304 * 305 * @set_default_key: set the default key on an interface 306 * 307 * @add_beacon: Add a beacon with given parameters, @head, @interval 308 * and @dtim_period will be valid, @tail is optional. 309 * @set_beacon: Change the beacon parameters for an access point mode 310 * interface. This should reject the call when no beacon has been 311 * configured. 312 * @del_beacon: Remove beacon configuration and stop sending the beacon. 313 * 314 * @add_station: Add a new station. 315 * 316 * @del_station: Remove a station; @mac may be NULL to remove all stations. 317 * 318 * @change_station: Modify a given station. 319 * 320 * @set_mesh_cfg: set mesh parameters (by now, just mesh id) 321 */ 322 struct cfg80211_ops { 323 int (*add_virtual_intf)(struct wiphy *wiphy, char *name, 324 enum nl80211_iftype type, u32 *flags, 325 struct vif_params *params); 326 int (*del_virtual_intf)(struct wiphy *wiphy, int ifindex); 327 int (*change_virtual_intf)(struct wiphy *wiphy, int ifindex, 328 enum nl80211_iftype type, u32 *flags, 329 struct vif_params *params); 330 331 int (*add_key)(struct wiphy *wiphy, struct net_device *netdev, 332 u8 key_index, u8 *mac_addr, 333 struct key_params *params); 334 int (*get_key)(struct wiphy *wiphy, struct net_device *netdev, 335 u8 key_index, u8 *mac_addr, void *cookie, 336 void (*callback)(void *cookie, struct key_params*)); 337 int (*del_key)(struct wiphy *wiphy, struct net_device *netdev, 338 u8 key_index, u8 *mac_addr); 339 int (*set_default_key)(struct wiphy *wiphy, 340 struct net_device *netdev, 341 u8 key_index); 342 343 int (*add_beacon)(struct wiphy *wiphy, struct net_device *dev, 344 struct beacon_parameters *info); 345 int (*set_beacon)(struct wiphy *wiphy, struct net_device *dev, 346 struct beacon_parameters *info); 347 int (*del_beacon)(struct wiphy *wiphy, struct net_device *dev); 348 349 350 int (*add_station)(struct wiphy *wiphy, struct net_device *dev, 351 u8 *mac, struct station_parameters *params); 352 int (*del_station)(struct wiphy *wiphy, struct net_device *dev, 353 u8 *mac); 354 int (*change_station)(struct wiphy *wiphy, struct net_device *dev, 355 u8 *mac, struct station_parameters *params); 356 int (*get_station)(struct wiphy *wiphy, struct net_device *dev, 357 u8 *mac, struct station_info *sinfo); 358 int (*dump_station)(struct wiphy *wiphy, struct net_device *dev, 359 int idx, u8 *mac, struct station_info *sinfo); 360 361 int (*add_mpath)(struct wiphy *wiphy, struct net_device *dev, 362 u8 *dst, u8 *next_hop); 363 int (*del_mpath)(struct wiphy *wiphy, struct net_device *dev, 364 u8 *dst); 365 int (*change_mpath)(struct wiphy *wiphy, struct net_device *dev, 366 u8 *dst, u8 *next_hop); 367 int (*get_mpath)(struct wiphy *wiphy, struct net_device *dev, 368 u8 *dst, u8 *next_hop, 369 struct mpath_info *pinfo); 370 int (*dump_mpath)(struct wiphy *wiphy, struct net_device *dev, 371 int idx, u8 *dst, u8 *next_hop, 372 struct mpath_info *pinfo); 373 }; 374 375 #endif /* __NET_CFG80211_H */ 376