p2p.h revision 15907098d1f67c24bb000e593e279af173cf57d7
1503524acc73f2f8280080ca0d200377406001b65Ted Kremenek/* 2503524acc73f2f8280080ca0d200377406001b65Ted Kremenek * Wi-Fi Direct - P2P module 3503524acc73f2f8280080ca0d200377406001b65Ted Kremenek * Copyright (c) 2009-2010, Atheros Communications 4503524acc73f2f8280080ca0d200377406001b65Ted Kremenek * 5503524acc73f2f8280080ca0d200377406001b65Ted Kremenek * This software may be distributed under the terms of the BSD license. 6503524acc73f2f8280080ca0d200377406001b65Ted Kremenek * See README for more details. 7503524acc73f2f8280080ca0d200377406001b65Ted Kremenek */ 8503524acc73f2f8280080ca0d200377406001b65Ted Kremenek 9503524acc73f2f8280080ca0d200377406001b65Ted Kremenek#ifndef P2P_H 10503524acc73f2f8280080ca0d200377406001b65Ted Kremenek#define P2P_H 11503524acc73f2f8280080ca0d200377406001b65Ted Kremenek 12503524acc73f2f8280080ca0d200377406001b65Ted Kremenek#include "wps/wps_defs.h" 13503524acc73f2f8280080ca0d200377406001b65Ted Kremenek 14503524acc73f2f8280080ca0d200377406001b65Ted Kremenek/** 15503524acc73f2f8280080ca0d200377406001b65Ted Kremenek * P2P_MAX_REG_CLASSES - Maximum number of regulatory classes 162fe363622c32c471e8a68c68ba5cc372644f24fbEli Friedman */ 17503524acc73f2f8280080ca0d200377406001b65Ted Kremenek#define P2P_MAX_REG_CLASSES 10 18503524acc73f2f8280080ca0d200377406001b65Ted Kremenek 19503524acc73f2f8280080ca0d200377406001b65Ted Kremenek/** 20503524acc73f2f8280080ca0d200377406001b65Ted Kremenek * P2P_MAX_REG_CLASS_CHANNELS - Maximum number of channels per regulatory class 21503524acc73f2f8280080ca0d200377406001b65Ted Kremenek */ 22503524acc73f2f8280080ca0d200377406001b65Ted Kremenek#define P2P_MAX_REG_CLASS_CHANNELS 20 2342f81e674ba420406d9efb8b52d4e59e613ebceaArgyrios Kyrtzidis 2442f81e674ba420406d9efb8b52d4e59e613ebceaArgyrios Kyrtzidis/** 256bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines * struct p2p_channels - List of supported channels 2642f81e674ba420406d9efb8b52d4e59e613ebceaArgyrios Kyrtzidis */ 27503524acc73f2f8280080ca0d200377406001b65Ted Kremenekstruct p2p_channels { 28503524acc73f2f8280080ca0d200377406001b65Ted Kremenek /** 29503524acc73f2f8280080ca0d200377406001b65Ted Kremenek * struct p2p_reg_class - Supported regulatory class 30503524acc73f2f8280080ca0d200377406001b65Ted Kremenek */ 315f022d82696c84e4d127c558871d68ac6273274eKen Dyck struct p2p_reg_class { 32651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /** 33651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines * reg_class - Regulatory class (IEEE 802.11-2007, Annex J) 34651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines */ 354ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad u8 reg_class; 364ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad 37651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /** 386bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines * channel - Supported channels 396bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines */ 40503524acc73f2f8280080ca0d200377406001b65Ted Kremenek u8 channel[P2P_MAX_REG_CLASS_CHANNELS]; 41503524acc73f2f8280080ca0d200377406001b65Ted Kremenek 42bb9357cf8f9b79fdf9af4613748d5dc4929c72d3Benjamin Kramer /** 43503524acc73f2f8280080ca0d200377406001b65Ted Kremenek * channels - Number of channel entries in use 44503524acc73f2f8280080ca0d200377406001b65Ted Kremenek */ 45503524acc73f2f8280080ca0d200377406001b65Ted Kremenek size_t channels; 46503524acc73f2f8280080ca0d200377406001b65Ted Kremenek } reg_class[P2P_MAX_REG_CLASSES]; 474ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad 48dac54c124e302d6f028ea5723c425b7f66fc7c71Ken Dyck /** 49651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines * reg_classes - Number of reg_class entries in use 501d40d62f137d3831729131e56562fc490b7f9591Warren Hunt */ 51b2969b1e50580344891a98f5b241f8351fe371cfWarren Hunt size_t reg_classes; 52227e483cb1f77ea6dcd38c2ca9fb490894a5f887Eli Friedman}; 53147b5ddc6c8618a9d70a83f90de409e444ae705bAnders Carlsson 54147b5ddc6c8618a9d70a83f90de409e444ae705bAnders Carlssonenum p2p_wps_method { 555c3633fa57f27b0909ab5767715c4e66b8920165Ken Dyck WPS_NOT_READY, WPS_PIN_DISPLAY, WPS_PIN_KEYPAD, WPS_PBC, WPS_NFC 56651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines}; 57a3d4380d6662a373bc78f915947e5bc06e985e91Anders Carlsson 5828fdd0a8b450c1329b3303e5cf8e8a788a0ef85aAnders Carlsson/** 590b9fb2f6b4845bfe5e25b576ae8f2ffa284f9cb1Anders Carlsson * struct p2p_go_neg_results - P2P Group Owner Negotiation results 606acb04f755cfc73d05772457d70aeb5adfaf6d8fTimur Iskhodzhanov */ 61651f13cea278ec967336033dd032faef0e9fc2ecStephen Hinesstruct p2p_go_neg_results { 62651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /** 63147b5ddc6c8618a9d70a83f90de409e444ae705bAnders Carlsson * status - Negotiation result (Status Code) 64441c6239c6df8c759bacf6510efbfd434b647066John McCall * 65651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines * 0 (P2P_SC_SUCCESS) indicates success. Non-zero values indicate 666bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines * failed negotiation. 67503524acc73f2f8280080ca0d200377406001b65Ted Kremenek */ 68503524acc73f2f8280080ca0d200377406001b65Ted Kremenek int status; 69503524acc73f2f8280080ca0d200377406001b65Ted Kremenek 70503524acc73f2f8280080ca0d200377406001b65Ted Kremenek /** 71bb9357cf8f9b79fdf9af4613748d5dc4929c72d3Benjamin Kramer * role_go - Whether local end is Group Owner 72503524acc73f2f8280080ca0d200377406001b65Ted Kremenek */ 73503524acc73f2f8280080ca0d200377406001b65Ted Kremenek int role_go; 740b9fb2f6b4845bfe5e25b576ae8f2ffa284f9cb1Anders Carlsson 750b9fb2f6b4845bfe5e25b576ae8f2ffa284f9cb1Anders Carlsson /** 76503524acc73f2f8280080ca0d200377406001b65Ted Kremenek * freq - Frequency of the group operational channel in MHz 77651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines */ 78c3fddeb4384de2238ec03c77be6bee606725609eAnders Carlsson int freq; 79147b5ddc6c8618a9d70a83f90de409e444ae705bAnders Carlsson 80147b5ddc6c8618a9d70a83f90de409e444ae705bAnders Carlsson int ht40; 81441c6239c6df8c759bacf6510efbfd434b647066John McCall 822fe363622c32c471e8a68c68ba5cc372644f24fbEli Friedman int vht; 831d40d62f137d3831729131e56562fc490b7f9591Warren Hunt 846acb04f755cfc73d05772457d70aeb5adfaf6d8fTimur Iskhodzhanov /** 85651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines * ssid - SSID of the group 86651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines */ 87b2969b1e50580344891a98f5b241f8351fe371cfWarren Hunt u8 ssid[32]; 88b6ee4b0146266ff7ce37c7d0a0c036bda50aa813Anders Carlsson 89b6ee4b0146266ff7ce37c7d0a0c036bda50aa813Anders Carlsson /** 90b6ee4b0146266ff7ce37c7d0a0c036bda50aa813Anders Carlsson * ssid_len - Length of SSID in octets 912fe363622c32c471e8a68c68ba5cc372644f24fbEli Friedman */ 92b8b2c9da87e7d70a1679db026f40548b3192b705John McCall size_t ssid_len; 93b8b2c9da87e7d70a1679db026f40548b3192b705John McCall 94b8b2c9da87e7d70a1679db026f40548b3192b705John McCall /** 952fe363622c32c471e8a68c68ba5cc372644f24fbEli Friedman * psk - WPA pre-shared key (256 bits) (GO only) 962fe363622c32c471e8a68c68ba5cc372644f24fbEli Friedman */ 97d4f5198ae07d9a4958d8191bac694ded12173ad9Benjamin Kramer u8 psk[32]; 98b6ee4b0146266ff7ce37c7d0a0c036bda50aa813Anders Carlsson 992fe363622c32c471e8a68c68ba5cc372644f24fbEli Friedman /** 100b6ee4b0146266ff7ce37c7d0a0c036bda50aa813Anders Carlsson * psk_set - Whether PSK field is configured (GO only) 101b6ee4b0146266ff7ce37c7d0a0c036bda50aa813Anders Carlsson */ 102503524acc73f2f8280080ca0d200377406001b65Ted Kremenek int psk_set; 103 104 /** 105 * passphrase - WPA2-Personal passphrase for the group (GO only) 106 */ 107 char passphrase[64]; 108 109 /** 110 * peer_device_addr - P2P Device Address of the peer 111 */ 112 u8 peer_device_addr[ETH_ALEN]; 113 114 /** 115 * peer_interface_addr - P2P Interface Address of the peer 116 */ 117 u8 peer_interface_addr[ETH_ALEN]; 118 119 /** 120 * wps_method - WPS method to be used during provisioning 121 */ 122 enum p2p_wps_method wps_method; 123 124#define P2P_MAX_CHANNELS 50 125 126 /** 127 * freq_list - Zero-terminated list of possible operational channels 128 */ 129 int freq_list[P2P_MAX_CHANNELS]; 130 131 /** 132 * persistent_group - Whether the group should be made persistent 133 * 0 = not persistent 134 * 1 = persistent group without persistent reconnect 135 * 2 = persistent group with persistent reconnect 136 */ 137 int persistent_group; 138 139 /** 140 * peer_config_timeout - Peer configuration timeout (in 10 msec units) 141 */ 142 unsigned int peer_config_timeout; 143}; 144 145struct p2p_data; 146 147enum p2p_scan_type { 148 P2P_SCAN_SOCIAL, 149 P2P_SCAN_FULL, 150 P2P_SCAN_SOCIAL_PLUS_ONE 151}; 152 153#define P2P_MAX_WPS_VENDOR_EXT 10 154 155/** 156 * struct p2p_peer_info - P2P peer information 157 */ 158struct p2p_peer_info { 159 /** 160 * p2p_device_addr - P2P Device Address of the peer 161 */ 162 u8 p2p_device_addr[ETH_ALEN]; 163 164 /** 165 * pri_dev_type - Primary Device Type 166 */ 167 u8 pri_dev_type[8]; 168 169 /** 170 * device_name - Device Name (0..32 octets encoded in UTF-8) 171 */ 172 char device_name[33]; 173 174 /** 175 * manufacturer - Manufacturer (0..64 octets encoded in UTF-8) 176 */ 177 char manufacturer[65]; 178 179 /** 180 * model_name - Model Name (0..32 octets encoded in UTF-8) 181 */ 182 char model_name[33]; 183 184 /** 185 * model_number - Model Number (0..32 octets encoded in UTF-8) 186 */ 187 char model_number[33]; 188 189 /** 190 * serial_number - Serial Number (0..32 octets encoded in UTF-8) 191 */ 192 char serial_number[33]; 193 194 /** 195 * level - Signal level 196 */ 197 int level; 198 199 /** 200 * config_methods - WPS Configuration Methods 201 */ 202 u16 config_methods; 203 204 /** 205 * dev_capab - Device Capabilities 206 */ 207 u8 dev_capab; 208 209 /** 210 * group_capab - Group Capabilities 211 */ 212 u8 group_capab; 213 214 /** 215 * wps_sec_dev_type_list - WPS secondary device type list 216 * 217 * This list includes from 0 to 16 Secondary Device Types as indicated 218 * by wps_sec_dev_type_list_len (8 * number of types). 219 */ 220 u8 wps_sec_dev_type_list[128]; 221 222 /** 223 * wps_sec_dev_type_list_len - Length of secondary device type list 224 */ 225 size_t wps_sec_dev_type_list_len; 226 227 struct wpabuf *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT]; 228 229 /** 230 * wfd_subelems - Wi-Fi Display subelements from WFD IE(s) 231 */ 232 struct wpabuf *wfd_subelems; 233}; 234 235enum p2p_prov_disc_status { 236 P2P_PROV_DISC_SUCCESS, 237 P2P_PROV_DISC_TIMEOUT, 238 P2P_PROV_DISC_REJECTED, 239 P2P_PROV_DISC_TIMEOUT_JOIN, 240}; 241 242struct p2p_channel { 243 u8 op_class; 244 u8 chan; 245}; 246 247/** 248 * struct p2p_config - P2P configuration 249 * 250 * This configuration is provided to the P2P module during initialization with 251 * p2p_init(). 252 */ 253struct p2p_config { 254 /** 255 * country - Country code to use in P2P operations 256 */ 257 char country[3]; 258 259 /** 260 * reg_class - Regulatory class for own listen channel 261 */ 262 u8 reg_class; 263 264 /** 265 * channel - Own listen channel 266 */ 267 u8 channel; 268 269 /** 270 * Regulatory class for own operational channel 271 */ 272 u8 op_reg_class; 273 274 /** 275 * op_channel - Own operational channel 276 */ 277 u8 op_channel; 278 279 /** 280 * cfg_op_channel - Whether op_channel is hardcoded in configuration 281 */ 282 u8 cfg_op_channel; 283 284 /** 285 * channels - Own supported regulatory classes and channels 286 * 287 * List of supposerted channels per regulatory class. The regulatory 288 * classes are defined in IEEE Std 802.11-2007 Annex J and the 289 * numbering of the clases depends on the configured country code. 290 */ 291 struct p2p_channels channels; 292 293 /** 294 * cli_channels - Additional client channels 295 * 296 * This list of channels (if any) will be used when advertising local 297 * channels during GO Negotiation or Invitation for the cases where the 298 * local end may become the client. This may allow the peer to become a 299 * GO on additional channels if it supports these options. The main use 300 * case for this is to include passive-scan channels on devices that may 301 * not know their current location and have configured most channels to 302 * not allow initiation of radition (i.e., another device needs to take 303 * master responsibilities). 304 */ 305 struct p2p_channels cli_channels; 306 307 /** 308 * num_pref_chan - Number of pref_chan entries 309 */ 310 unsigned int num_pref_chan; 311 312 /** 313 * pref_chan - Preferred channels for GO Negotiation 314 */ 315 struct p2p_channel *pref_chan; 316 317 /** 318 * pri_dev_type - Primary Device Type (see WPS) 319 */ 320 u8 pri_dev_type[8]; 321 322 /** 323 * P2P_SEC_DEVICE_TYPES - Maximum number of secondary device types 324 */ 325#define P2P_SEC_DEVICE_TYPES 5 326 327 /** 328 * sec_dev_type - Optional secondary device types 329 */ 330 u8 sec_dev_type[P2P_SEC_DEVICE_TYPES][8]; 331 332 /** 333 * num_sec_dev_types - Number of sec_dev_type entries 334 */ 335 size_t num_sec_dev_types; 336 337 /** 338 * dev_addr - P2P Device Address 339 */ 340 u8 dev_addr[ETH_ALEN]; 341 342 /** 343 * dev_name - Device Name 344 */ 345 char *dev_name; 346 347 char *manufacturer; 348 char *model_name; 349 char *model_number; 350 char *serial_number; 351 352 u8 uuid[16]; 353 u16 config_methods; 354 355 /** 356 * concurrent_operations - Whether concurrent operations are supported 357 */ 358 int concurrent_operations; 359 360 /** 361 * max_peers - Maximum number of discovered peers to remember 362 * 363 * If more peers are discovered, older entries will be removed to make 364 * room for the new ones. 365 */ 366 size_t max_peers; 367 368 /** 369 * p2p_intra_bss - Intra BSS communication is supported 370 */ 371 int p2p_intra_bss; 372 373 /** 374 * ssid_postfix - Postfix data to add to the SSID 375 * 376 * This data will be added to the end of the SSID after the 377 * DIRECT-<random two octets> prefix. 378 */ 379 u8 ssid_postfix[32 - 9]; 380 381 /** 382 * ssid_postfix_len - Length of the ssid_postfix data 383 */ 384 size_t ssid_postfix_len; 385 386 /** 387 * max_listen - Maximum listen duration in ms 388 */ 389 unsigned int max_listen; 390 391 /** 392 * cb_ctx - Context to use with callback functions 393 */ 394 void *cb_ctx; 395 396 /** 397 * debug_print - Debug print 398 * @ctx: Callback context from cb_ctx 399 * @level: Debug verbosity level (MSG_*) 400 * @msg: Debug message 401 */ 402 void (*debug_print)(void *ctx, int level, const char *msg); 403 404 405 /* Callbacks to request lower layer driver operations */ 406 407 /** 408 * p2p_scan - Request a P2P scan/search 409 * @ctx: Callback context from cb_ctx 410 * @type: Scan type 411 * @freq: Specific frequency (MHz) to scan or 0 for no restriction 412 * @num_req_dev_types: Number of requested device types 413 * @req_dev_types: Array containing requested device types 414 * @dev_id: Device ID to search for or %NULL to find all devices 415 * @pw_id: Device Password ID 416 * Returns: 0 on success, -1 on failure 417 * 418 * This callback function is used to request a P2P scan or search 419 * operation to be completed. Type type argument specifies which type 420 * of scan is to be done. @P2P_SCAN_SOCIAL indicates that only the 421 * social channels (1, 6, 11) should be scanned. @P2P_SCAN_FULL 422 * indicates that all channels are to be scanned. 423 * @P2P_SCAN_SOCIAL_PLUS_ONE request scan of all the social channels 424 * plus one extra channel specified by freq. 425 * 426 * The full scan is used for the initial scan to find group owners from 427 * all. The other types are used during search phase scan of the social 428 * channels (with potential variation if the Listen channel of the 429 * target peer is known or if other channels are scanned in steps). 430 * 431 * The scan results are returned after this call by calling 432 * p2p_scan_res_handler() for each scan result that has a P2P IE and 433 * then calling p2p_scan_res_handled() to indicate that all scan 434 * results have been indicated. 435 */ 436 int (*p2p_scan)(void *ctx, enum p2p_scan_type type, int freq, 437 unsigned int num_req_dev_types, 438 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id); 439 440 /** 441 * send_probe_resp - Transmit a Probe Response frame 442 * @ctx: Callback context from cb_ctx 443 * @buf: Probe Response frame (including the header and body) 444 * Returns: 0 on success, -1 on failure 445 * 446 * This function is used to reply to Probe Request frames that were 447 * indicated with a call to p2p_probe_req_rx(). The response is to be 448 * sent on the same channel or to be dropped if the driver is not 449 * anymore listening to Probe Request frames. 450 * 451 * Alternatively, the responsibility for building the Probe Response 452 * frames in Listen state may be in another system component in which 453 * case this function need to be implemented (i.e., the function 454 * pointer can be %NULL). The WPS and P2P IEs to be added for Probe 455 * Response frames in such a case are available from the 456 * start_listen() callback. It should be noted that the received Probe 457 * Request frames must be indicated by calling p2p_probe_req_rx() even 458 * if this send_probe_resp() is not used. 459 */ 460 int (*send_probe_resp)(void *ctx, const struct wpabuf *buf); 461 462 /** 463 * send_action - Transmit an Action frame 464 * @ctx: Callback context from cb_ctx 465 * @freq: Frequency in MHz for the channel on which to transmit 466 * @dst: Destination MAC address (Address 1) 467 * @src: Source MAC address (Address 2) 468 * @bssid: BSSID (Address 3) 469 * @buf: Frame body (starting from Category field) 470 * @len: Length of buf in octets 471 * @wait_time: How many msec to wait for a response frame 472 * Returns: 0 on success, -1 on failure 473 * 474 * The Action frame may not be transmitted immediately and the status 475 * of the transmission must be reported by calling 476 * p2p_send_action_cb() once the frame has either been transmitted or 477 * it has been dropped due to excessive retries or other failure to 478 * transmit. 479 */ 480 int (*send_action)(void *ctx, unsigned int freq, const u8 *dst, 481 const u8 *src, const u8 *bssid, const u8 *buf, 482 size_t len, unsigned int wait_time); 483 484 /** 485 * send_action_done - Notify that Action frame sequence was completed 486 * @ctx: Callback context from cb_ctx 487 * 488 * This function is called when the Action frame sequence that was 489 * started with send_action() has been completed, i.e., when there is 490 * no need to wait for a response from the destination peer anymore. 491 */ 492 void (*send_action_done)(void *ctx); 493 494 /** 495 * start_listen - Start Listen state 496 * @ctx: Callback context from cb_ctx 497 * @freq: Frequency of the listen channel in MHz 498 * @duration: Duration for the Listen state in milliseconds 499 * @probe_resp_ie: IE(s) to be added to Probe Response frames 500 * Returns: 0 on success, -1 on failure 501 * 502 * This Listen state may not start immediately since the driver may 503 * have other pending operations to complete first. Once the Listen 504 * state has started, p2p_listen_cb() must be called to notify the P2P 505 * module. Once the Listen state is stopped, p2p_listen_end() must be 506 * called to notify the P2P module that the driver is not in the Listen 507 * state anymore. 508 * 509 * If the send_probe_resp() is not used for generating the response, 510 * the IEs from probe_resp_ie need to be added to the end of the Probe 511 * Response frame body. If send_probe_resp() is used, the probe_resp_ie 512 * information can be ignored. 513 */ 514 int (*start_listen)(void *ctx, unsigned int freq, 515 unsigned int duration, 516 const struct wpabuf *probe_resp_ie); 517 /** 518 * stop_listen - Stop Listen state 519 * @ctx: Callback context from cb_ctx 520 * 521 * This callback can be used to stop a Listen state operation that was 522 * previously requested with start_listen(). 523 */ 524 void (*stop_listen)(void *ctx); 525 526 /** 527 * get_noa - Get current Notice of Absence attribute payload 528 * @ctx: Callback context from cb_ctx 529 * @interface_addr: P2P Interface Address of the GO 530 * @buf: Buffer for returning NoA 531 * @buf_len: Buffer length in octets 532 * Returns: Number of octets used in buf, 0 to indicate no NoA is being 533 * advertized, or -1 on failure 534 * 535 * This function is used to fetch the current Notice of Absence 536 * attribute value from GO. 537 */ 538 int (*get_noa)(void *ctx, const u8 *interface_addr, u8 *buf, 539 size_t buf_len); 540 541 /* Callbacks to notify events to upper layer management entity */ 542 543 /** 544 * dev_found - Notification of a found P2P Device 545 * @ctx: Callback context from cb_ctx 546 * @addr: Source address of the message triggering this notification 547 * @info: P2P peer information 548 * @new_device: Inform if the peer is newly found 549 * 550 * This callback is used to notify that a new P2P Device has been 551 * found. This may happen, e.g., during Search state based on scan 552 * results or during Listen state based on receive Probe Request and 553 * Group Owner Negotiation Request. 554 */ 555 void (*dev_found)(void *ctx, const u8 *addr, 556 const struct p2p_peer_info *info, 557 int new_device); 558 559 /** 560 * dev_lost - Notification of a lost P2P Device 561 * @ctx: Callback context from cb_ctx 562 * @dev_addr: P2P Device Address of the lost P2P Device 563 * 564 * This callback is used to notify that a P2P Device has been deleted. 565 */ 566 void (*dev_lost)(void *ctx, const u8 *dev_addr); 567 568 /** 569 * find_stopped - Notification of a p2p_find operation stopping 570 * @ctx: Callback context from cb_ctx 571 */ 572 void (*find_stopped)(void *ctx); 573 574 /** 575 * go_neg_req_rx - Notification of a receive GO Negotiation Request 576 * @ctx: Callback context from cb_ctx 577 * @src: Source address of the message triggering this notification 578 * @dev_passwd_id: WPS Device Password ID 579 * 580 * This callback is used to notify that a P2P Device is requesting 581 * group owner negotiation with us, but we do not have all the 582 * necessary information to start GO Negotiation. This indicates that 583 * the local user has not authorized the connection yet by providing a 584 * PIN or PBC button press. This information can be provided with a 585 * call to p2p_connect(). 586 */ 587 void (*go_neg_req_rx)(void *ctx, const u8 *src, u16 dev_passwd_id); 588 589 /** 590 * go_neg_completed - Notification of GO Negotiation results 591 * @ctx: Callback context from cb_ctx 592 * @res: GO Negotiation results 593 * 594 * This callback is used to notify that Group Owner Negotiation has 595 * been completed. Non-zero struct p2p_go_neg_results::status indicates 596 * failed negotiation. In case of success, this function is responsible 597 * for creating a new group interface (or using the existing interface 598 * depending on driver features), setting up the group interface in 599 * proper mode based on struct p2p_go_neg_results::role_go and 600 * initializing WPS provisioning either as a Registrar (if GO) or as an 601 * Enrollee. Successful WPS provisioning must be indicated by calling 602 * p2p_wps_success_cb(). The callee is responsible for timing out group 603 * formation if WPS provisioning cannot be completed successfully 604 * within 15 seconds. 605 */ 606 void (*go_neg_completed)(void *ctx, struct p2p_go_neg_results *res); 607 608 /** 609 * sd_request - Callback on Service Discovery Request 610 * @ctx: Callback context from cb_ctx 611 * @freq: Frequency (in MHz) of the channel 612 * @sa: Source address of the request 613 * @dialog_token: Dialog token 614 * @update_indic: Service Update Indicator from the source of request 615 * @tlvs: P2P Service Request TLV(s) 616 * @tlvs_len: Length of tlvs buffer in octets 617 * 618 * This callback is used to indicate reception of a service discovery 619 * request. Response to the query must be indicated by calling 620 * p2p_sd_response() with the context information from the arguments to 621 * this callback function. 622 * 623 * This callback handler can be set to %NULL to indicate that service 624 * discovery is not supported. 625 */ 626 void (*sd_request)(void *ctx, int freq, const u8 *sa, u8 dialog_token, 627 u16 update_indic, const u8 *tlvs, size_t tlvs_len); 628 629 /** 630 * sd_response - Callback on Service Discovery Response 631 * @ctx: Callback context from cb_ctx 632 * @sa: Source address of the request 633 * @update_indic: Service Update Indicator from the source of response 634 * @tlvs: P2P Service Response TLV(s) 635 * @tlvs_len: Length of tlvs buffer in octets 636 * 637 * This callback is used to indicate reception of a service discovery 638 * response. This callback handler can be set to %NULL if no service 639 * discovery requests are used. The information provided with this call 640 * is replies to the queries scheduled with p2p_sd_request(). 641 */ 642 void (*sd_response)(void *ctx, const u8 *sa, u16 update_indic, 643 const u8 *tlvs, size_t tlvs_len); 644 645 /** 646 * prov_disc_req - Callback on Provisiong Discovery Request 647 * @ctx: Callback context from cb_ctx 648 * @peer: Source address of the request 649 * @config_methods: Requested WPS Config Method 650 * @dev_addr: P2P Device Address of the found P2P Device 651 * @pri_dev_type: Primary Device Type 652 * @dev_name: Device Name 653 * @supp_config_methods: Supported configuration Methods 654 * @dev_capab: Device Capabilities 655 * @group_capab: Group Capabilities 656 * @group_id: P2P Group ID (or %NULL if not included) 657 * @group_id_len: Length of P2P Group ID 658 * 659 * This callback is used to indicate reception of a Provision Discovery 660 * Request frame that the P2P module accepted. 661 */ 662 void (*prov_disc_req)(void *ctx, const u8 *peer, u16 config_methods, 663 const u8 *dev_addr, const u8 *pri_dev_type, 664 const char *dev_name, u16 supp_config_methods, 665 u8 dev_capab, u8 group_capab, 666 const u8 *group_id, size_t group_id_len); 667 668 /** 669 * prov_disc_resp - Callback on Provisiong Discovery Response 670 * @ctx: Callback context from cb_ctx 671 * @peer: Source address of the response 672 * @config_methods: Value from p2p_prov_disc_req() or 0 on failure 673 * 674 * This callback is used to indicate reception of a Provision Discovery 675 * Response frame for a pending request scheduled with 676 * p2p_prov_disc_req(). This callback handler can be set to %NULL if 677 * provision discovery is not used. 678 */ 679 void (*prov_disc_resp)(void *ctx, const u8 *peer, u16 config_methods); 680 681 /** 682 * prov_disc_fail - Callback on Provision Discovery failure 683 * @ctx: Callback context from cb_ctx 684 * @peer: Source address of the response 685 * @status: Cause of failure, will not be %P2P_PROV_DISC_SUCCESS 686 * 687 * This callback is used to indicate either a failure or no response 688 * to an earlier provision discovery request. 689 * 690 * This callback handler can be set to %NULL if provision discovery 691 * is not used or failures do not need to be indicated. 692 */ 693 void (*prov_disc_fail)(void *ctx, const u8 *peer, 694 enum p2p_prov_disc_status status); 695 696 /** 697 * invitation_process - Optional callback for processing Invitations 698 * @ctx: Callback context from cb_ctx 699 * @sa: Source address of the Invitation Request 700 * @bssid: P2P Group BSSID from the request or %NULL if not included 701 * @go_dev_addr: GO Device Address from P2P Group ID 702 * @ssid: SSID from P2P Group ID 703 * @ssid_len: Length of ssid buffer in octets 704 * @go: Variable for returning whether the local end is GO in the group 705 * @group_bssid: Buffer for returning P2P Group BSSID (if local end GO) 706 * @force_freq: Variable for returning forced frequency for the group 707 * @persistent_group: Whether this is an invitation to reinvoke a 708 * persistent group (instead of invitation to join an active 709 * group) 710 * @channels: Available operating channels for the group 711 * @dev_pw_id: Device Password ID for NFC static handover or -1 if not 712 * used 713 * Returns: Status code (P2P_SC_*) 714 * 715 * This optional callback can be used to implement persistent reconnect 716 * by allowing automatic restarting of persistent groups without user 717 * interaction. If this callback is not implemented (i.e., is %NULL), 718 * the received Invitation Request frames are replied with 719 * %P2P_SC_REQ_RECEIVED status and indicated to upper layer with the 720 * invitation_result() callback. 721 * 722 * If the requested parameters are acceptable and the group is known, 723 * %P2P_SC_SUCCESS may be returned. If the requested group is unknown, 724 * %P2P_SC_FAIL_UNKNOWN_GROUP should be returned. %P2P_SC_REQ_RECEIVED 725 * can be returned if there is not enough data to provide immediate 726 * response, i.e., if some sort of user interaction is needed. The 727 * invitation_received() callback will be called in that case 728 * immediately after this call. 729 */ 730 u8 (*invitation_process)(void *ctx, const u8 *sa, const u8 *bssid, 731 const u8 *go_dev_addr, const u8 *ssid, 732 size_t ssid_len, int *go, u8 *group_bssid, 733 int *force_freq, int persistent_group, 734 const struct p2p_channels *channels, 735 int dev_pw_id); 736 737 /** 738 * invitation_received - Callback on Invitation Request RX 739 * @ctx: Callback context from cb_ctx 740 * @sa: Source address of the Invitation Request 741 * @bssid: P2P Group BSSID or %NULL if not received 742 * @ssid: SSID of the group 743 * @ssid_len: Length of ssid in octets 744 * @go_dev_addr: GO Device Address 745 * @status: Response Status 746 * @op_freq: Operational frequency for the group 747 * 748 * This callback is used to indicate sending of an Invitation Response 749 * for a received Invitation Request. If status == 0 (success), the 750 * upper layer code is responsible for starting the group. status == 1 751 * indicates need to get user authorization for the group. Other status 752 * values indicate that the invitation request was rejected. 753 */ 754 void (*invitation_received)(void *ctx, const u8 *sa, const u8 *bssid, 755 const u8 *ssid, size_t ssid_len, 756 const u8 *go_dev_addr, u8 status, 757 int op_freq); 758 759 /** 760 * invitation_result - Callback on Invitation result 761 * @ctx: Callback context from cb_ctx 762 * @status: Negotiation result (Status Code) 763 * @bssid: P2P Group BSSID or %NULL if not received 764 * @channels: Available operating channels for the group 765 * @addr: Peer address 766 * @freq: Frequency (in MHz) indicated during invitation or 0 767 * @peer_oper_freq: Operating frequency (in MHz) advertized by the peer 768 * during invitation or 0 769 * 770 * This callback is used to indicate result of an Invitation procedure 771 * started with a call to p2p_invite(). The indicated status code is 772 * the value received from the peer in Invitation Response with 0 773 * (P2P_SC_SUCCESS) indicating success or -1 to indicate a timeout or a 774 * local failure in transmitting the Invitation Request. 775 */ 776 void (*invitation_result)(void *ctx, int status, const u8 *bssid, 777 const struct p2p_channels *channels, 778 const u8 *addr, int freq, int peer_oper_freq); 779 780 /** 781 * go_connected - Check whether we are connected to a GO 782 * @ctx: Callback context from cb_ctx 783 * @dev_addr: P2P Device Address of a GO 784 * Returns: 1 if we are connected as a P2P client to the specified GO 785 * or 0 if not. 786 */ 787 int (*go_connected)(void *ctx, const u8 *dev_addr); 788 789 /** 790 * presence_resp - Callback on Presence Response 791 * @ctx: Callback context from cb_ctx 792 * @src: Source address (GO's P2P Interface Address) 793 * @status: Result of the request (P2P_SC_*) 794 * @noa: Returned NoA value 795 * @noa_len: Length of the NoA buffer in octets 796 */ 797 void (*presence_resp)(void *ctx, const u8 *src, u8 status, 798 const u8 *noa, size_t noa_len); 799 800 /** 801 * is_concurrent_session_active - Check whether concurrent session is 802 * active on other virtual interfaces 803 * @ctx: Callback context from cb_ctx 804 * Returns: 1 if concurrent session is active on other virtual interface 805 * or 0 if not. 806 */ 807 int (*is_concurrent_session_active)(void *ctx); 808}; 809 810 811/* P2P module initialization/deinitialization */ 812 813/** 814 * p2p_init - Initialize P2P module 815 * @cfg: P2P module configuration 816 * Returns: Pointer to private data or %NULL on failure 817 * 818 * This function is used to initialize global P2P module context (one per 819 * device). The P2P module will keep a copy of the configuration data, so the 820 * caller does not need to maintain this structure. However, the callback 821 * functions and the context parameters to them must be kept available until 822 * the P2P module is deinitialized with p2p_deinit(). 823 */ 824struct p2p_data * p2p_init(const struct p2p_config *cfg); 825 826/** 827 * p2p_deinit - Deinitialize P2P module 828 * @p2p: P2P module context from p2p_init() 829 */ 830void p2p_deinit(struct p2p_data *p2p); 831 832/** 833 * p2p_flush - Flush P2P module state 834 * @p2p: P2P module context from p2p_init() 835 * 836 * This command removes the P2P module state like peer device entries. 837 */ 838void p2p_flush(struct p2p_data *p2p); 839 840/** 841 * p2p_unauthorize - Unauthorize the specified peer device 842 * @p2p: P2P module context from p2p_init() 843 * @addr: P2P peer entry to be unauthorized 844 * Returns: 0 on success, -1 on failure 845 * 846 * This command removes any connection authorization from the specified P2P 847 * peer device address. This can be used, e.g., to cancel effect of a previous 848 * p2p_authorize() or p2p_connect() call that has not yet resulted in completed 849 * GO Negotiation. 850 */ 851int p2p_unauthorize(struct p2p_data *p2p, const u8 *addr); 852 853/** 854 * p2p_set_dev_name - Set device name 855 * @p2p: P2P module context from p2p_init() 856 * Returns: 0 on success, -1 on failure 857 * 858 * This function can be used to update the P2P module configuration with 859 * information that was not available at the time of the p2p_init() call. 860 */ 861int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name); 862 863int p2p_set_manufacturer(struct p2p_data *p2p, const char *manufacturer); 864int p2p_set_model_name(struct p2p_data *p2p, const char *model_name); 865int p2p_set_model_number(struct p2p_data *p2p, const char *model_number); 866int p2p_set_serial_number(struct p2p_data *p2p, const char *serial_number); 867 868void p2p_set_config_methods(struct p2p_data *p2p, u16 config_methods); 869void p2p_set_uuid(struct p2p_data *p2p, const u8 *uuid); 870 871/** 872 * p2p_set_pri_dev_type - Set primary device type 873 * @p2p: P2P module context from p2p_init() 874 * Returns: 0 on success, -1 on failure 875 * 876 * This function can be used to update the P2P module configuration with 877 * information that was not available at the time of the p2p_init() call. 878 */ 879int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type); 880 881/** 882 * p2p_set_sec_dev_types - Set secondary device types 883 * @p2p: P2P module context from p2p_init() 884 * Returns: 0 on success, -1 on failure 885 * 886 * This function can be used to update the P2P module configuration with 887 * information that was not available at the time of the p2p_init() call. 888 */ 889int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8], 890 size_t num_dev_types); 891 892int p2p_set_country(struct p2p_data *p2p, const char *country); 893 894 895/* Commands from upper layer management entity */ 896 897enum p2p_discovery_type { 898 P2P_FIND_START_WITH_FULL, 899 P2P_FIND_ONLY_SOCIAL, 900 P2P_FIND_PROGRESSIVE 901}; 902 903/** 904 * p2p_find - Start P2P Find (Device Discovery) 905 * @p2p: P2P module context from p2p_init() 906 * @timeout: Timeout for find operation in seconds or 0 for no timeout 907 * @type: Device Discovery type 908 * @num_req_dev_types: Number of requested device types 909 * @req_dev_types: Requested device types array, must be an array 910 * containing num_req_dev_types * WPS_DEV_TYPE_LEN bytes; %NULL if no 911 * requested device types. 912 * @dev_id: Device ID to search for or %NULL to find all devices 913 * @search_delay: Extra delay in milliseconds between search iterations 914 * Returns: 0 on success, -1 on failure 915 */ 916int p2p_find(struct p2p_data *p2p, unsigned int timeout, 917 enum p2p_discovery_type type, 918 unsigned int num_req_dev_types, const u8 *req_dev_types, 919 const u8 *dev_id, unsigned int search_delay); 920 921/** 922 * p2p_stop_find - Stop P2P Find (Device Discovery) 923 * @p2p: P2P module context from p2p_init() 924 */ 925void p2p_stop_find(struct p2p_data *p2p); 926 927/** 928 * p2p_stop_find_for_freq - Stop P2P Find for next oper on specific freq 929 * @p2p: P2P module context from p2p_init() 930 * @freq: Frequency in MHz for next operation 931 * 932 * This is like p2p_stop_find(), but Listen state is not stopped if we are 933 * already on the same frequency. 934 */ 935void p2p_stop_find_for_freq(struct p2p_data *p2p, int freq); 936 937/** 938 * p2p_listen - Start P2P Listen state for specified duration 939 * @p2p: P2P module context from p2p_init() 940 * @timeout: Listen state duration in milliseconds 941 * Returns: 0 on success, -1 on failure 942 * 943 * This function can be used to request the P2P module to keep the device 944 * discoverable on the listen channel for an extended set of time. At least in 945 * its current form, this is mainly used for testing purposes and may not be of 946 * much use for normal P2P operations. 947 */ 948int p2p_listen(struct p2p_data *p2p, unsigned int timeout); 949 950/** 951 * p2p_stop_listen - Stop P2P Listen 952 * @p2p: P2P module context from p2p_init() 953 */ 954void p2p_stop_listen(struct p2p_data *p2p); 955 956/** 957 * p2p_connect - Start P2P group formation (GO negotiation) 958 * @p2p: P2P module context from p2p_init() 959 * @peer_addr: MAC address of the peer P2P client 960 * @wps_method: WPS method to be used in provisioning 961 * @go_intent: Local GO intent value (1..15) 962 * @own_interface_addr: Intended interface address to use with the group 963 * @force_freq: The only allowed channel frequency in MHz or 0 964 * @persistent_group: Whether to create a persistent group (0 = no, 1 = 965 * persistent group without persistent reconnect, 2 = persistent group with 966 * persistent reconnect) 967 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate 968 * a new SSID 969 * @force_ssid_len: Length of $force_ssid buffer 970 * @pd_before_go_neg: Whether to send Provision Discovery prior to GO 971 * Negotiation as an interoperability workaround when initiating group 972 * formation 973 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if 974 * force_freq == 0) 975 * Returns: 0 on success, -1 on failure 976 */ 977int p2p_connect(struct p2p_data *p2p, const u8 *peer_addr, 978 enum p2p_wps_method wps_method, 979 int go_intent, const u8 *own_interface_addr, 980 unsigned int force_freq, int persistent_group, 981 const u8 *force_ssid, size_t force_ssid_len, 982 int pd_before_go_neg, unsigned int pref_freq, u16 oob_pw_id); 983 984/** 985 * p2p_authorize - Authorize P2P group formation (GO negotiation) 986 * @p2p: P2P module context from p2p_init() 987 * @peer_addr: MAC address of the peer P2P client 988 * @wps_method: WPS method to be used in provisioning 989 * @go_intent: Local GO intent value (1..15) 990 * @own_interface_addr: Intended interface address to use with the group 991 * @force_freq: The only allowed channel frequency in MHz or 0 992 * @persistent_group: Whether to create a persistent group (0 = no, 1 = 993 * persistent group without persistent reconnect, 2 = persistent group with 994 * persistent reconnect) 995 * @force_ssid: Forced SSID for the group if we become GO or %NULL to generate 996 * a new SSID 997 * @force_ssid_len: Length of $force_ssid buffer 998 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if 999 * force_freq == 0) 1000 * Returns: 0 on success, -1 on failure 1001 * 1002 * This is like p2p_connect(), but the actual group negotiation is not 1003 * initiated automatically, i.e., the other end is expected to do that. 1004 */ 1005int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr, 1006 enum p2p_wps_method wps_method, 1007 int go_intent, const u8 *own_interface_addr, 1008 unsigned int force_freq, int persistent_group, 1009 const u8 *force_ssid, size_t force_ssid_len, 1010 unsigned int pref_freq, u16 oob_pw_id); 1011 1012/** 1013 * p2p_reject - Reject peer device (explicitly block connection attempts) 1014 * @p2p: P2P module context from p2p_init() 1015 * @peer_addr: MAC address of the peer P2P client 1016 * Returns: 0 on success, -1 on failure 1017 */ 1018int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr); 1019 1020/** 1021 * p2p_prov_disc_req - Send Provision Discovery Request 1022 * @p2p: P2P module context from p2p_init() 1023 * @peer_addr: MAC address of the peer P2P client 1024 * @config_methods: WPS Config Methods value (only one bit set) 1025 * @join: Whether this is used by a client joining an active group 1026 * @force_freq: Forced TX frequency for the frame (mainly for the join case) 1027 * @user_initiated_pd: Flag to indicate if initiated by user or not 1028 * Returns: 0 on success, -1 on failure 1029 * 1030 * This function can be used to request a discovered P2P peer to display a PIN 1031 * (config_methods = WPS_CONFIG_DISPLAY) or be prepared to enter a PIN from us 1032 * (config_methods = WPS_CONFIG_KEYPAD). The Provision Discovery Request frame 1033 * is transmitted once immediately and if no response is received, the frame 1034 * will be sent again whenever the target device is discovered during device 1035 * dsicovery (start with a p2p_find() call). Response from the peer is 1036 * indicated with the p2p_config::prov_disc_resp() callback. 1037 */ 1038int p2p_prov_disc_req(struct p2p_data *p2p, const u8 *peer_addr, 1039 u16 config_methods, int join, int force_freq, 1040 int user_initiated_pd); 1041 1042/** 1043 * p2p_sd_request - Schedule a service discovery query 1044 * @p2p: P2P module context from p2p_init() 1045 * @dst: Destination peer or %NULL to apply for all peers 1046 * @tlvs: P2P Service Query TLV(s) 1047 * Returns: Reference to the query or %NULL on failure 1048 * 1049 * Response to the query is indicated with the p2p_config::sd_response() 1050 * callback. 1051 */ 1052void * p2p_sd_request(struct p2p_data *p2p, const u8 *dst, 1053 const struct wpabuf *tlvs); 1054 1055#ifdef CONFIG_WIFI_DISPLAY 1056void * p2p_sd_request_wfd(struct p2p_data *p2p, const u8 *dst, 1057 const struct wpabuf *tlvs); 1058#endif /* CONFIG_WIFI_DISPLAY */ 1059 1060/** 1061 * p2p_sd_cancel_request - Cancel a pending service discovery query 1062 * @p2p: P2P module context from p2p_init() 1063 * @req: Query reference from p2p_sd_request() 1064 * Returns: 0 if request for cancelled; -1 if not found 1065 */ 1066int p2p_sd_cancel_request(struct p2p_data *p2p, void *req); 1067 1068/** 1069 * p2p_sd_response - Send response to a service discovery query 1070 * @p2p: P2P module context from p2p_init() 1071 * @freq: Frequency from p2p_config::sd_request() callback 1072 * @dst: Destination address from p2p_config::sd_request() callback 1073 * @dialog_token: Dialog token from p2p_config::sd_request() callback 1074 * @resp_tlvs: P2P Service Response TLV(s) 1075 * 1076 * This function is called as a response to the request indicated with 1077 * p2p_config::sd_request() callback. 1078 */ 1079void p2p_sd_response(struct p2p_data *p2p, int freq, const u8 *dst, 1080 u8 dialog_token, const struct wpabuf *resp_tlvs); 1081 1082/** 1083 * p2p_sd_service_update - Indicate a change in local services 1084 * @p2p: P2P module context from p2p_init() 1085 * 1086 * This function needs to be called whenever there is a change in availability 1087 * of the local services. This will increment the Service Update Indicator 1088 * value which will be used in SD Request and Response frames. 1089 */ 1090void p2p_sd_service_update(struct p2p_data *p2p); 1091 1092 1093enum p2p_invite_role { 1094 P2P_INVITE_ROLE_GO, 1095 P2P_INVITE_ROLE_ACTIVE_GO, 1096 P2P_INVITE_ROLE_CLIENT 1097}; 1098 1099/** 1100 * p2p_invite - Invite a P2P Device into a group 1101 * @p2p: P2P module context from p2p_init() 1102 * @peer: Device Address of the peer P2P Device 1103 * @role: Local role in the group 1104 * @bssid: Group BSSID or %NULL if not known 1105 * @ssid: Group SSID 1106 * @ssid_len: Length of ssid in octets 1107 * @force_freq: The only allowed channel frequency in MHz or 0 1108 * @go_dev_addr: Forced GO Device Address or %NULL if none 1109 * @persistent_group: Whether this is to reinvoke a persistent group 1110 * @pref_freq: Preferred operating frequency in MHz or 0 (this is only used if 1111 * force_freq == 0) 1112 * @dev_pw_id: Device Password ID from OOB Device Password (NFC) static handover 1113 * case or -1 if not used 1114 * Returns: 0 on success, -1 on failure 1115 */ 1116int p2p_invite(struct p2p_data *p2p, const u8 *peer, enum p2p_invite_role role, 1117 const u8 *bssid, const u8 *ssid, size_t ssid_len, 1118 unsigned int force_freq, const u8 *go_dev_addr, 1119 int persistent_group, unsigned int pref_freq, int dev_pw_id); 1120 1121/** 1122 * p2p_presence_req - Request GO presence 1123 * @p2p: P2P module context from p2p_init() 1124 * @go_interface_addr: GO P2P Interface Address 1125 * @own_interface_addr: Own P2P Interface Address for this group 1126 * @freq: Group operating frequence (in MHz) 1127 * @duration1: Preferred presence duration in microseconds 1128 * @interval1: Preferred presence interval in microseconds 1129 * @duration2: Acceptable presence duration in microseconds 1130 * @interval2: Acceptable presence interval in microseconds 1131 * Returns: 0 on success, -1 on failure 1132 * 1133 * If both duration and interval values are zero, the parameter pair is not 1134 * specified (i.e., to remove Presence Request, use duration1 = interval1 = 0). 1135 */ 1136int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr, 1137 const u8 *own_interface_addr, unsigned int freq, 1138 u32 duration1, u32 interval1, u32 duration2, 1139 u32 interval2); 1140 1141/** 1142 * p2p_ext_listen - Set Extended Listen Timing 1143 * @p2p: P2P module context from p2p_init() 1144 * @freq: Group operating frequence (in MHz) 1145 * @period: Availability period in milliseconds (1-65535; 0 to disable) 1146 * @interval: Availability interval in milliseconds (1-65535; 0 to disable) 1147 * Returns: 0 on success, -1 on failure 1148 * 1149 * This function can be used to enable or disable (period = interval = 0) 1150 * Extended Listen Timing. When enabled, the P2P Device will become 1151 * discoverable (go into Listen State) every @interval milliseconds for at 1152 * least @period milliseconds. 1153 */ 1154int p2p_ext_listen(struct p2p_data *p2p, unsigned int period, 1155 unsigned int interval); 1156 1157/* Event notifications from upper layer management operations */ 1158 1159/** 1160 * p2p_wps_success_cb - Report successfully completed WPS provisioning 1161 * @p2p: P2P module context from p2p_init() 1162 * @mac_addr: Peer address 1163 * 1164 * This function is used to report successfully completed WPS provisioning 1165 * during group formation in both GO/Registrar and client/Enrollee roles. 1166 */ 1167void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr); 1168 1169/** 1170 * p2p_group_formation_failed - Report failed WPS provisioning 1171 * @p2p: P2P module context from p2p_init() 1172 * 1173 * This function is used to report failed group formation. This can happen 1174 * either due to failed WPS provisioning or due to 15 second timeout during 1175 * the provisioning phase. 1176 */ 1177void p2p_group_formation_failed(struct p2p_data *p2p); 1178 1179/** 1180 * p2p_get_provisioning_info - Get any stored provisioning info 1181 * @p2p: P2P module context from p2p_init() 1182 * @addr: Peer P2P Device Address 1183 * Returns: WPS provisioning information (WPS config method) or 0 if no 1184 * information is available 1185 * 1186 * This function is used to retrieve stored WPS provisioning info for the given 1187 * peer. 1188 */ 1189u16 p2p_get_provisioning_info(struct p2p_data *p2p, const u8 *addr); 1190 1191/** 1192 * p2p_clear_provisioning_info - Clear any stored provisioning info 1193 * @p2p: P2P module context from p2p_init() 1194 * @iface_addr: Peer P2P Device Address 1195 * 1196 * This function is used to clear stored WPS provisioning info for the given 1197 * peer. 1198 */ 1199void p2p_clear_provisioning_info(struct p2p_data *p2p, const u8 *addr); 1200 1201 1202/* Event notifications from lower layer driver operations */ 1203 1204/** 1205 * enum p2p_probe_req_status 1206 * 1207 * @P2P_PREQ_MALFORMED: frame was not well-formed 1208 * @P2P_PREQ_NOT_LISTEN: device isn't in listen state, frame ignored 1209 * @P2P_PREQ_NOT_P2P: frame was not a P2P probe request 1210 * @P2P_PREQ_P2P_NOT_PROCESSED: frame was P2P but wasn't processed 1211 * @P2P_PREQ_P2P_PROCESSED: frame has been processed by P2P 1212 */ 1213enum p2p_probe_req_status { 1214 P2P_PREQ_MALFORMED, 1215 P2P_PREQ_NOT_LISTEN, 1216 P2P_PREQ_NOT_P2P, 1217 P2P_PREQ_NOT_PROCESSED, 1218 P2P_PREQ_PROCESSED 1219}; 1220 1221/** 1222 * p2p_probe_req_rx - Report reception of a Probe Request frame 1223 * @p2p: P2P module context from p2p_init() 1224 * @addr: Source MAC address 1225 * @dst: Destination MAC address if available or %NULL 1226 * @bssid: BSSID if available or %NULL 1227 * @ie: Information elements from the Probe Request frame body 1228 * @ie_len: Length of ie buffer in octets 1229 * Returns: value indicating the type and status of the probe request 1230 */ 1231enum p2p_probe_req_status 1232p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *dst, 1233 const u8 *bssid, const u8 *ie, size_t ie_len); 1234 1235/** 1236 * p2p_rx_action - Report received Action frame 1237 * @p2p: P2P module context from p2p_init() 1238 * @da: Destination address of the received Action frame 1239 * @sa: Source address of the received Action frame 1240 * @bssid: Address 3 of the received Action frame 1241 * @category: Category of the received Action frame 1242 * @data: Action frame body after the Category field 1243 * @len: Length of the data buffer in octets 1244 * @freq: Frequency (in MHz) on which the frame was received 1245 */ 1246void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa, 1247 const u8 *bssid, u8 category, 1248 const u8 *data, size_t len, int freq); 1249 1250/** 1251 * p2p_scan_res_handler - Indicate a P2P scan results 1252 * @p2p: P2P module context from p2p_init() 1253 * @bssid: BSSID of the scan result 1254 * @freq: Frequency of the channel on which the device was found in MHz 1255 * @rx_time: Time when the result was received 1256 * @level: Signal level (signal strength of the received Beacon/Probe Response 1257 * frame) 1258 * @ies: Pointer to IEs from the scan result 1259 * @ies_len: Length of the ies buffer 1260 * Returns: 0 to continue or 1 to stop scan result indication 1261 * 1262 * This function is called to indicate a scan result entry with P2P IE from a 1263 * scan requested with struct p2p_config::p2p_scan(). This can be called during 1264 * the actual scan process (i.e., whenever a new device is found) or as a 1265 * sequence of calls after the full scan has been completed. The former option 1266 * can result in optimized operations, but may not be supported by all 1267 * driver/firmware designs. The ies buffer need to include at least the P2P IE, 1268 * but it is recommended to include all IEs received from the device. The 1269 * caller does not need to check that the IEs contain a P2P IE before calling 1270 * this function since frames will be filtered internally if needed. 1271 * 1272 * This function will return 1 if it wants to stop scan result iteration (and 1273 * scan in general if it is still in progress). This is used to allow faster 1274 * start of a pending operation, e.g., to start a pending GO negotiation. 1275 */ 1276int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq, 1277 struct os_reltime *rx_time, int level, const u8 *ies, 1278 size_t ies_len); 1279 1280/** 1281 * p2p_scan_res_handled - Indicate end of scan results 1282 * @p2p: P2P module context from p2p_init() 1283 * 1284 * This function is called to indicate that all P2P scan results from a scan 1285 * have been reported with zero or more calls to p2p_scan_res_handler(). This 1286 * function must be called as a response to successful 1287 * struct p2p_config::p2p_scan() call if none of the p2p_scan_res_handler() 1288 * calls stopped iteration. 1289 */ 1290void p2p_scan_res_handled(struct p2p_data *p2p); 1291 1292enum p2p_send_action_result { 1293 P2P_SEND_ACTION_SUCCESS /* Frame was send and acknowledged */, 1294 P2P_SEND_ACTION_NO_ACK /* Frame was sent, but not acknowledged */, 1295 P2P_SEND_ACTION_FAILED /* Frame was not sent due to a failure */ 1296}; 1297 1298/** 1299 * p2p_send_action_cb - Notify TX status of an Action frame 1300 * @p2p: P2P module context from p2p_init() 1301 * @freq: Channel frequency in MHz 1302 * @dst: Destination MAC address (Address 1) 1303 * @src: Source MAC address (Address 2) 1304 * @bssid: BSSID (Address 3) 1305 * @result: Result of the transmission attempt 1306 * 1307 * This function is used to indicate the result of an Action frame transmission 1308 * that was requested with struct p2p_config::send_action() callback. 1309 */ 1310void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst, 1311 const u8 *src, const u8 *bssid, 1312 enum p2p_send_action_result result); 1313 1314/** 1315 * p2p_listen_cb - Indicate the start of a requested Listen state 1316 * @p2p: P2P module context from p2p_init() 1317 * @freq: Listen channel frequency in MHz 1318 * @duration: Duration for the Listen state in milliseconds 1319 * 1320 * This function is used to indicate that a Listen state requested with 1321 * struct p2p_config::start_listen() callback has started. 1322 */ 1323void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq, 1324 unsigned int duration); 1325 1326/** 1327 * p2p_listen_end - Indicate the end of a requested Listen state 1328 * @p2p: P2P module context from p2p_init() 1329 * @freq: Listen channel frequency in MHz 1330 * Returns: 0 if no operations were started, 1 if an operation was started 1331 * 1332 * This function is used to indicate that a Listen state requested with 1333 * struct p2p_config::start_listen() callback has ended. 1334 */ 1335int p2p_listen_end(struct p2p_data *p2p, unsigned int freq); 1336 1337void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code, 1338 const u8 *ie, size_t ie_len); 1339 1340void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code, 1341 const u8 *ie, size_t ie_len); 1342 1343 1344/* Per-group P2P state for GO */ 1345 1346struct p2p_group; 1347 1348/** 1349 * struct p2p_group_config - P2P group configuration 1350 * 1351 * This configuration is provided to the P2P module during initialization of 1352 * the per-group information with p2p_group_init(). 1353 */ 1354struct p2p_group_config { 1355 /** 1356 * persistent_group - Whether the group is persistent 1357 * 0 = not a persistent group 1358 * 1 = persistent group without persistent reconnect 1359 * 2 = persistent group with persistent reconnect 1360 */ 1361 int persistent_group; 1362 1363 /** 1364 * interface_addr - P2P Interface Address of the group 1365 */ 1366 u8 interface_addr[ETH_ALEN]; 1367 1368 /** 1369 * max_clients - Maximum number of clients in the group 1370 */ 1371 unsigned int max_clients; 1372 1373 /** 1374 * ssid - Group SSID 1375 */ 1376 u8 ssid[32]; 1377 1378 /** 1379 * ssid_len - Length of SSID 1380 */ 1381 size_t ssid_len; 1382 1383 /** 1384 * freq - Operating channel of the group 1385 */ 1386 int freq; 1387 1388 /** 1389 * cb_ctx - Context to use with callback functions 1390 */ 1391 void *cb_ctx; 1392 1393 /** 1394 * ie_update - Notification of IE update 1395 * @ctx: Callback context from cb_ctx 1396 * @beacon_ies: P2P IE for Beacon frames or %NULL if no change 1397 * @proberesp_ies: P2P Ie for Probe Response frames 1398 * 1399 * P2P module uses this callback function to notify whenever the P2P IE 1400 * in Beacon or Probe Response frames should be updated based on group 1401 * events. 1402 * 1403 * The callee is responsible for freeing the returned buffer(s) with 1404 * wpabuf_free(). 1405 */ 1406 void (*ie_update)(void *ctx, struct wpabuf *beacon_ies, 1407 struct wpabuf *proberesp_ies); 1408 1409 /** 1410 * idle_update - Notification of changes in group idle state 1411 * @ctx: Callback context from cb_ctx 1412 * @idle: Whether the group is idle (no associated stations) 1413 */ 1414 void (*idle_update)(void *ctx, int idle); 1415}; 1416 1417/** 1418 * p2p_group_init - Initialize P2P group 1419 * @p2p: P2P module context from p2p_init() 1420 * @config: P2P group configuration (will be freed by p2p_group_deinit()) 1421 * Returns: Pointer to private data or %NULL on failure 1422 * 1423 * This function is used to initialize per-group P2P module context. Currently, 1424 * this is only used to manage GO functionality and P2P clients do not need to 1425 * create an instance of this per-group information. 1426 */ 1427struct p2p_group * p2p_group_init(struct p2p_data *p2p, 1428 struct p2p_group_config *config); 1429 1430/** 1431 * p2p_group_deinit - Deinitialize P2P group 1432 * @group: P2P group context from p2p_group_init() 1433 */ 1434void p2p_group_deinit(struct p2p_group *group); 1435 1436/** 1437 * p2p_group_notif_assoc - Notification of P2P client association with GO 1438 * @group: P2P group context from p2p_group_init() 1439 * @addr: Interface address of the P2P client 1440 * @ie: IEs from the (Re)association Request frame 1441 * @len: Length of the ie buffer in octets 1442 * Returns: 0 on success, -1 on failure 1443 */ 1444int p2p_group_notif_assoc(struct p2p_group *group, const u8 *addr, 1445 const u8 *ie, size_t len); 1446 1447/** 1448 * p2p_group_assoc_resp_ie - Build P2P IE for (re)association response 1449 * @group: P2P group context from p2p_group_init() 1450 * @status: Status value (P2P_SC_SUCCESS if association succeeded) 1451 * Returns: P2P IE for (Re)association Response or %NULL on failure 1452 * 1453 * The caller is responsible for freeing the returned buffer with 1454 * wpabuf_free(). 1455 */ 1456struct wpabuf * p2p_group_assoc_resp_ie(struct p2p_group *group, u8 status); 1457 1458/** 1459 * p2p_group_notif_disassoc - Notification of P2P client disassociation from GO 1460 * @group: P2P group context from p2p_group_init() 1461 * @addr: Interface address of the P2P client 1462 */ 1463void p2p_group_notif_disassoc(struct p2p_group *group, const u8 *addr); 1464 1465/** 1466 * p2p_group_notif_formation_done - Notification of completed group formation 1467 * @group: P2P group context from p2p_group_init() 1468 */ 1469void p2p_group_notif_formation_done(struct p2p_group *group); 1470 1471/** 1472 * p2p_group_notif_noa - Notification of NoA change 1473 * @group: P2P group context from p2p_group_init() 1474 * @noa: Notice of Absence attribute payload, %NULL if none 1475 * @noa_len: Length of noa buffer in octets 1476 * Returns: 0 on success, -1 on failure 1477 * 1478 * Notify the P2P group management about a new NoA contents. This will be 1479 * inserted into the P2P IEs in Beacon and Probe Response frames with rest of 1480 * the group information. 1481 */ 1482int p2p_group_notif_noa(struct p2p_group *group, const u8 *noa, 1483 size_t noa_len); 1484 1485/** 1486 * p2p_group_match_dev_type - Match device types in group with requested type 1487 * @group: P2P group context from p2p_group_init() 1488 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs) 1489 * Returns: 1 on match, 0 on mismatch 1490 * 1491 * This function can be used to match the Requested Device Type attribute in 1492 * WPS IE with the device types of a group member for deciding whether a GO 1493 * should reply to a Probe Request frame. Match will be reported if the WPS IE 1494 * is not requested any specific device type. 1495 */ 1496int p2p_group_match_dev_type(struct p2p_group *group, struct wpabuf *wps); 1497 1498/** 1499 * p2p_group_match_dev_id - Match P2P Device Address in group with requested device id 1500 */ 1501int p2p_group_match_dev_id(struct p2p_group *group, struct wpabuf *p2p); 1502 1503/** 1504 * p2p_group_go_discover - Send GO Discoverability Request to a group client 1505 * @group: P2P group context from p2p_group_init() 1506 * Returns: 0 on success (frame scheduled); -1 if client was not found 1507 */ 1508int p2p_group_go_discover(struct p2p_group *group, const u8 *dev_id, 1509 const u8 *searching_dev, int rx_freq); 1510 1511 1512/* Generic helper functions */ 1513 1514/** 1515 * p2p_ie_text - Build text format description of P2P IE 1516 * @p2p_ie: P2P IE 1517 * @buf: Buffer for returning text 1518 * @end: Pointer to the end of the buf area 1519 * Returns: Number of octets written to the buffer or -1 on failure 1520 * 1521 * This function can be used to parse P2P IE contents into text format 1522 * field=value lines. 1523 */ 1524int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end); 1525 1526/** 1527 * p2p_scan_result_text - Build text format description of P2P IE 1528 * @ies: Information elements from scan results 1529 * @ies_len: ies buffer length in octets 1530 * @buf: Buffer for returning text 1531 * @end: Pointer to the end of the buf area 1532 * Returns: Number of octets written to the buffer or -1 on failure 1533 * 1534 * This function can be used to parse P2P IE contents into text format 1535 * field=value lines. 1536 */ 1537int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end); 1538 1539/** 1540 * p2p_parse_dev_addr_in_p2p_ie - Parse P2P Device Address from a concatenated 1541 * P2P IE 1542 * @p2p_ie: P2P IE 1543 * @dev_addr: Buffer for returning P2P Device Address 1544 * Returns: 0 on success or -1 if P2P Device Address could not be parsed 1545 */ 1546int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf *p2p_ie, u8 *dev_addr); 1547 1548/** 1549 * p2p_parse_dev_addr - Parse P2P Device Address from P2P IE(s) 1550 * @ies: Information elements from scan results 1551 * @ies_len: ies buffer length in octets 1552 * @dev_addr: Buffer for returning P2P Device Address 1553 * Returns: 0 on success or -1 if P2P Device Address could not be parsed 1554 */ 1555int p2p_parse_dev_addr(const u8 *ies, size_t ies_len, u8 *dev_addr); 1556 1557/** 1558 * p2p_assoc_req_ie - Build P2P IE for (Re)Association Request frame 1559 * @p2p: P2P module context from p2p_init() 1560 * @bssid: BSSID 1561 * @buf: Buffer for writing the P2P IE 1562 * @len: Maximum buf length in octets 1563 * @p2p_group: Whether this is for association with a P2P GO 1564 * @p2p_ie: Reassembled P2P IE data from scan results or %NULL if none 1565 * Returns: Number of octets written into buf or -1 on failure 1566 */ 1567int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf, 1568 size_t len, int p2p_group, struct wpabuf *p2p_ie); 1569 1570/** 1571 * p2p_scan_ie - Build P2P IE for Probe Request 1572 * @p2p: P2P module context from p2p_init() 1573 * @ies: Buffer for writing P2P IE 1574 * @dev_id: Device ID to search for or %NULL for any 1575 */ 1576void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies, const u8 *dev_id); 1577 1578/** 1579 * p2p_scan_ie_buf_len - Get maximum buffer length needed for p2p_scan_ie 1580 * @p2p: P2P module context from p2p_init() 1581 * Returns: Number of octets that p2p_scan_ie() may add to the buffer 1582 */ 1583size_t p2p_scan_ie_buf_len(struct p2p_data *p2p); 1584 1585/** 1586 * p2p_go_params - Generate random P2P group parameters 1587 * @p2p: P2P module context from p2p_init() 1588 * @params: Buffer for parameters 1589 * Returns: 0 on success, -1 on failure 1590 */ 1591int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params); 1592 1593/** 1594 * p2p_get_group_capab - Get Group Capability from P2P IE data 1595 * @p2p_ie: P2P IE(s) contents 1596 * Returns: Group Capability 1597 */ 1598u8 p2p_get_group_capab(const struct wpabuf *p2p_ie); 1599 1600/** 1601 * p2p_get_cross_connect_disallowed - Does WLAN AP disallows cross connection 1602 * @p2p_ie: P2P IE(s) contents 1603 * Returns: 0 if cross connection is allow, 1 if not 1604 */ 1605int p2p_get_cross_connect_disallowed(const struct wpabuf *p2p_ie); 1606 1607/** 1608 * p2p_get_go_dev_addr - Get P2P Device Address from P2P IE data 1609 * @p2p_ie: P2P IE(s) contents 1610 * Returns: Pointer to P2P Device Address or %NULL if not included 1611 */ 1612const u8 * p2p_get_go_dev_addr(const struct wpabuf *p2p_ie); 1613 1614/** 1615 * p2p_get_peer_info - Get P2P peer information 1616 * @p2p: P2P module context from p2p_init() 1617 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer 1618 * @next: Whether to select the peer entry following the one indicated by addr 1619 * Returns: Pointer to peer info or %NULL if not found 1620 */ 1621const struct p2p_peer_info * p2p_get_peer_info(struct p2p_data *p2p, 1622 const u8 *addr, int next); 1623 1624/** 1625 * p2p_get_peer_info_txt - Get internal P2P peer information in text format 1626 * @info: Pointer to P2P peer info from p2p_get_peer_info() 1627 * @buf: Buffer for returning text 1628 * @buflen: Maximum buffer length 1629 * Returns: Number of octets written to the buffer or -1 on failure 1630 * 1631 * Note: This information is internal to the P2P module and subject to change. 1632 * As such, this should not really be used by external programs for purposes 1633 * other than debugging. 1634 */ 1635int p2p_get_peer_info_txt(const struct p2p_peer_info *info, 1636 char *buf, size_t buflen); 1637 1638/** 1639 * p2p_peer_known - Check whether P2P peer is known 1640 * @p2p: P2P module context from p2p_init() 1641 * @addr: P2P Device Address of the peer 1642 * Returns: 1 if the specified device is in the P2P peer table or 0 if not 1643 */ 1644int p2p_peer_known(struct p2p_data *p2p, const u8 *addr); 1645 1646/** 1647 * p2p_set_client_discoverability - Set client discoverability capability 1648 * @p2p: P2P module context from p2p_init() 1649 * @enabled: Whether client discoverability will be enabled 1650 * 1651 * This function can be used to disable (and re-enable) client discoverability. 1652 * This capability is enabled by default and should not be disabled in normal 1653 * use cases, i.e., this is mainly for testing purposes. 1654 */ 1655void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled); 1656 1657/** 1658 * p2p_set_managed_oper - Set managed P2P Device operations capability 1659 * @p2p: P2P module context from p2p_init() 1660 * @enabled: Whether managed P2P Device operations will be enabled 1661 */ 1662void p2p_set_managed_oper(struct p2p_data *p2p, int enabled); 1663 1664int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel); 1665 1666int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len); 1667 1668int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr, 1669 u8 *iface_addr); 1670int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr, 1671 u8 *dev_addr); 1672 1673void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr); 1674 1675/** 1676 * p2p_set_cross_connect - Set cross connection capability 1677 * @p2p: P2P module context from p2p_init() 1678 * @enabled: Whether cross connection will be enabled 1679 */ 1680void p2p_set_cross_connect(struct p2p_data *p2p, int enabled); 1681 1682int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr); 1683 1684/** 1685 * p2p_set_intra_bss_dist - Set intra BSS distribution 1686 * @p2p: P2P module context from p2p_init() 1687 * @enabled: Whether intra BSS distribution will be enabled 1688 */ 1689void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled); 1690 1691int p2p_channels_includes_freq(const struct p2p_channels *channels, 1692 unsigned int freq); 1693 1694/** 1695 * p2p_supported_freq - Check whether channel is supported for P2P 1696 * @p2p: P2P module context from p2p_init() 1697 * @freq: Channel frequency in MHz 1698 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P 1699 */ 1700int p2p_supported_freq(struct p2p_data *p2p, unsigned int freq); 1701 1702/** 1703 * p2p_supported_freq_go - Check whether channel is supported for P2P GO operation 1704 * @p2p: P2P module context from p2p_init() 1705 * @freq: Channel frequency in MHz 1706 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P 1707 */ 1708int p2p_supported_freq_go(struct p2p_data *p2p, unsigned int freq); 1709 1710/** 1711 * p2p_supported_freq_cli - Check whether channel is supported for P2P client operation 1712 * @p2p: P2P module context from p2p_init() 1713 * @freq: Channel frequency in MHz 1714 * Returns: 0 if channel not usable for P2P, 1 if usable for P2P 1715 */ 1716int p2p_supported_freq_cli(struct p2p_data *p2p, unsigned int freq); 1717 1718/** 1719 * p2p_get_pref_freq - Get channel from preferred channel list 1720 * @p2p: P2P module context from p2p_init() 1721 * @channels: List of channels 1722 * Returns: Preferred channel 1723 */ 1724unsigned int p2p_get_pref_freq(struct p2p_data *p2p, 1725 const struct p2p_channels *channels); 1726 1727void p2p_update_channel_list(struct p2p_data *p2p, 1728 const struct p2p_channels *chan, 1729 const struct p2p_channels *cli_chan); 1730 1731/** 1732 * p2p_set_best_channels - Update best channel information 1733 * @p2p: P2P module context from p2p_init() 1734 * @freq_24: Frequency (MHz) of best channel in 2.4 GHz band 1735 * @freq_5: Frequency (MHz) of best channel in 5 GHz band 1736 * @freq_overall: Frequency (MHz) of best channel overall 1737 */ 1738void p2p_set_best_channels(struct p2p_data *p2p, int freq_24, int freq_5, 1739 int freq_overall); 1740 1741/** 1742 * p2p_set_own_freq_preference - Set own preference for channel 1743 * @p2p: P2P module context from p2p_init() 1744 * @freq: Frequency (MHz) of the preferred channel or 0 if no preference 1745 * 1746 * This function can be used to set a preference on the operating channel based 1747 * on frequencies used on the other virtual interfaces that share the same 1748 * radio. If non-zero, this is used to try to avoid multi-channel concurrency. 1749 */ 1750void p2p_set_own_freq_preference(struct p2p_data *p2p, int freq); 1751 1752const u8 * p2p_get_go_neg_peer(struct p2p_data *p2p); 1753 1754/** 1755 * p2p_get_group_num_members - Get number of members in group 1756 * @group: P2P group context from p2p_group_init() 1757 * Returns: Number of members in the group 1758 */ 1759unsigned int p2p_get_group_num_members(struct p2p_group *group); 1760 1761/** 1762 * p2p_iterate_group_members - Iterate group members 1763 * @group: P2P group context from p2p_group_init() 1764 * @next: iteration pointer, must be a pointer to a void * that is set to %NULL 1765 * on the first call and not modified later 1766 * Returns: A P2P Interface Address for each call and %NULL for no more members 1767 */ 1768const u8 * p2p_iterate_group_members(struct p2p_group *group, void **next); 1769 1770/** 1771 * p2p_group_get_dev_addr - Get a P2P Device Address of a client in a group 1772 * @group: P2P group context from p2p_group_init() 1773 * @addr: P2P Interface Address of the client 1774 * Returns: P2P Device Address of the client if found or %NULL if no match 1775 * found 1776 */ 1777const u8 * p2p_group_get_dev_addr(struct p2p_group *group, const u8 *addr); 1778 1779/** 1780 * p2p_group_is_client_connected - Check whether a specific client is connected 1781 * @group: P2P group context from p2p_group_init() 1782 * @addr: P2P Device Address of the client 1783 * Returns: 1 if client is connected or 0 if not 1784 */ 1785int p2p_group_is_client_connected(struct p2p_group *group, const u8 *dev_addr); 1786 1787/** 1788 * p2p_get_peer_found - Get P2P peer info structure of a found peer 1789 * @p2p: P2P module context from p2p_init() 1790 * @addr: P2P Device Address of the peer or %NULL to indicate the first peer 1791 * @next: Whether to select the peer entry following the one indicated by addr 1792 * Returns: The first P2P peer info available or %NULL if no such peer exists 1793 */ 1794const struct p2p_peer_info * 1795p2p_get_peer_found(struct p2p_data *p2p, const u8 *addr, int next); 1796 1797/** 1798 * p2p_remove_wps_vendor_extensions - Remove WPS vendor extensions 1799 * @p2p: P2P module context from p2p_init() 1800 */ 1801void p2p_remove_wps_vendor_extensions(struct p2p_data *p2p); 1802 1803/** 1804 * p2p_add_wps_vendor_extension - Add a WPS vendor extension 1805 * @p2p: P2P module context from p2p_init() 1806 * @vendor_ext: The vendor extensions to add 1807 * Returns: 0 on success, -1 on failure 1808 * 1809 * The wpabuf structures in the array are owned by the P2P 1810 * module after this call. 1811 */ 1812int p2p_add_wps_vendor_extension(struct p2p_data *p2p, 1813 const struct wpabuf *vendor_ext); 1814 1815/** 1816 * p2p_set_oper_channel - Set the P2P operating channel 1817 * @p2p: P2P module context from p2p_init() 1818 * @op_reg_class: Operating regulatory class to set 1819 * @op_channel: operating channel to set 1820 * @cfg_op_channel : Whether op_channel is hardcoded in configuration 1821 * Returns: 0 on success, -1 on failure 1822 */ 1823int p2p_set_oper_channel(struct p2p_data *p2p, u8 op_reg_class, u8 op_channel, 1824 int cfg_op_channel); 1825 1826/** 1827 * p2p_set_pref_chan - Set P2P preferred channel list 1828 * @p2p: P2P module context from p2p_init() 1829 * @num_pref_chan: Number of entries in pref_chan list 1830 * @pref_chan: Preferred channels or %NULL to remove preferences 1831 * Returns: 0 on success, -1 on failure 1832 */ 1833int p2p_set_pref_chan(struct p2p_data *p2p, unsigned int num_pref_chan, 1834 const struct p2p_channel *pref_chan); 1835 1836/** 1837 * p2p_set_no_go_freq - Set no GO channel ranges 1838 * @p2p: P2P module context from p2p_init() 1839 * @list: Channel ranges or %NULL to remove restriction 1840 * Returns: 0 on success, -1 on failure 1841 */ 1842int p2p_set_no_go_freq(struct p2p_data *p2p, 1843 const struct wpa_freq_range_list *list); 1844 1845/** 1846 * p2p_in_progress - Check whether a P2P operation is progress 1847 * @p2p: P2P module context from p2p_init() 1848 * Returns: 0 if P2P module is idle or 1 if an operation is in progress 1849 */ 1850int p2p_in_progress(struct p2p_data *p2p); 1851 1852const char * p2p_wps_method_text(enum p2p_wps_method method); 1853 1854/** 1855 * p2p_set_config_timeout - Set local config timeouts 1856 * @p2p: P2P module context from p2p_init() 1857 * @go_timeout: Time in 10 ms units it takes to start the GO mode 1858 * @client_timeout: Time in 10 ms units it takes to start the client mode 1859 */ 1860void p2p_set_config_timeout(struct p2p_data *p2p, u8 go_timeout, 1861 u8 client_timeout); 1862 1863int p2p_set_wfd_ie_beacon(struct p2p_data *p2p, struct wpabuf *ie); 1864int p2p_set_wfd_ie_probe_req(struct p2p_data *p2p, struct wpabuf *ie); 1865int p2p_set_wfd_ie_probe_resp(struct p2p_data *p2p, struct wpabuf *ie); 1866int p2p_set_wfd_ie_assoc_req(struct p2p_data *p2p, struct wpabuf *ie); 1867int p2p_set_wfd_ie_invitation(struct p2p_data *p2p, struct wpabuf *ie); 1868int p2p_set_wfd_ie_prov_disc_req(struct p2p_data *p2p, struct wpabuf *ie); 1869int p2p_set_wfd_ie_prov_disc_resp(struct p2p_data *p2p, struct wpabuf *ie); 1870int p2p_set_wfd_ie_go_neg(struct p2p_data *p2p, struct wpabuf *ie); 1871int p2p_set_wfd_dev_info(struct p2p_data *p2p, const struct wpabuf *elem); 1872int p2p_set_wfd_assoc_bssid(struct p2p_data *p2p, const struct wpabuf *elem); 1873int p2p_set_wfd_coupled_sink_info(struct p2p_data *p2p, 1874 const struct wpabuf *elem); 1875struct wpabuf * wifi_display_encaps(struct wpabuf *subelems); 1876 1877/** 1878 * p2p_set_disc_int - Set min/max discoverable interval for p2p_find 1879 * @p2p: P2P module context from p2p_init() 1880 * @min_disc_int: minDiscoverableInterval (in units of 100 TU); default 1 1881 * @max_disc_int: maxDiscoverableInterval (in units of 100 TU); default 3 1882 * @max_disc_tu: Maximum number of TUs (1.024 ms) for discoverable interval; or 1883 * -1 not to limit 1884 * Returns: 0 on success, or -1 on failure 1885 * 1886 * This function can be used to configure minDiscoverableInterval and 1887 * maxDiscoverableInterval parameters for the Listen state during device 1888 * discovery (p2p_find). A random number of 100 TU units is picked for each 1889 * Listen state iteration from [min_disc_int,max_disc_int] range. 1890 * 1891 * max_disc_tu can be used to futher limit the discoverable duration. However, 1892 * it should be noted that use of this parameter is not recommended since it 1893 * would not be compliant with the P2P specification. 1894 */ 1895int p2p_set_disc_int(struct p2p_data *p2p, int min_disc_int, int max_disc_int, 1896 int max_disc_tu); 1897 1898/** 1899 * p2p_get_state_txt - Get current P2P state for debug purposes 1900 * @p2p: P2P module context from p2p_init() 1901 * Returns: Name of the current P2P module state 1902 * 1903 * It should be noted that the P2P module state names are internal information 1904 * and subject to change at any point, i.e., this information should be used 1905 * mainly for debugging purposes. 1906 */ 1907const char * p2p_get_state_txt(struct p2p_data *p2p); 1908 1909struct wpabuf * p2p_build_nfc_handover_req(struct p2p_data *p2p, 1910 int client_freq, 1911 const u8 *go_dev_addr, 1912 const u8 *ssid, size_t ssid_len); 1913struct wpabuf * p2p_build_nfc_handover_sel(struct p2p_data *p2p, 1914 int client_freq, 1915 const u8 *go_dev_addr, 1916 const u8 *ssid, size_t ssid_len); 1917 1918struct p2p_nfc_params { 1919 int sel; 1920 const u8 *wsc_attr; 1921 size_t wsc_len; 1922 const u8 *p2p_attr; 1923 size_t p2p_len; 1924 1925 enum { 1926 NO_ACTION, JOIN_GROUP, AUTH_JOIN, INIT_GO_NEG, RESP_GO_NEG, 1927 BOTH_GO, PEER_CLIENT 1928 } next_step; 1929 struct p2p_peer_info *peer; 1930 u8 oob_dev_pw[WPS_OOB_PUBKEY_HASH_LEN + 2 + 1931 WPS_OOB_DEVICE_PASSWORD_LEN]; 1932 size_t oob_dev_pw_len; 1933 int go_freq; 1934 u8 go_dev_addr[ETH_ALEN]; 1935 u8 go_ssid[32]; 1936 size_t go_ssid_len; 1937}; 1938 1939int p2p_process_nfc_connection_handover(struct p2p_data *p2p, 1940 struct p2p_nfc_params *params); 1941 1942void p2p_set_authorized_oob_dev_pw_id(struct p2p_data *p2p, u16 dev_pw_id, 1943 int go_intent, 1944 const u8 *own_interface_addr); 1945 1946#endif /* P2P_H */ 1947