rrm.c revision 346981
1/* 2 * hostapd / Radio Measurement (RRM) 3 * Copyright(c) 2013 - 2016 Intel Mobile Communications GmbH. 4 * Copyright(c) 2011 - 2016 Intel Corporation. All rights reserved. 5 * Copyright (c) 2016-2017, Jouni Malinen <j@w1.fi> 6 * 7 * This software may be distributed under the terms of the BSD license. 8 * See README for more details. 9 */ 10 11#include "utils/includes.h" 12 13#include "utils/common.h" 14#include "common/wpa_ctrl.h" 15#include "hostapd.h" 16#include "ap_drv_ops.h" 17#include "sta_info.h" 18#include "eloop.h" 19#include "neighbor_db.h" 20#include "rrm.h" 21 22#define HOSTAPD_RRM_REQUEST_TIMEOUT 5 23 24 25static void hostapd_lci_rep_timeout_handler(void *eloop_data, void *user_ctx) 26{ 27 struct hostapd_data *hapd = eloop_data; 28 29 wpa_printf(MSG_DEBUG, "RRM: LCI request (token %u) timed out", 30 hapd->lci_req_token); 31 hapd->lci_req_active = 0; 32} 33 34 35static void hostapd_handle_lci_report(struct hostapd_data *hapd, u8 token, 36 const u8 *pos, size_t len) 37{ 38 if (!hapd->lci_req_active || hapd->lci_req_token != token) { 39 wpa_printf(MSG_DEBUG, "Unexpected LCI report, token %u", token); 40 return; 41 } 42 43 hapd->lci_req_active = 0; 44 eloop_cancel_timeout(hostapd_lci_rep_timeout_handler, hapd, NULL); 45 wpa_printf(MSG_DEBUG, "LCI report token %u len %zu", token, len); 46} 47 48 49static void hostapd_range_rep_timeout_handler(void *eloop_data, void *user_ctx) 50{ 51 struct hostapd_data *hapd = eloop_data; 52 53 wpa_printf(MSG_DEBUG, "RRM: Range request (token %u) timed out", 54 hapd->range_req_token); 55 hapd->range_req_active = 0; 56} 57 58 59static void hostapd_handle_range_report(struct hostapd_data *hapd, u8 token, 60 const u8 *pos, size_t len) 61{ 62 if (!hapd->range_req_active || hapd->range_req_token != token) { 63 wpa_printf(MSG_DEBUG, "Unexpected range report, token %u", 64 token); 65 return; 66 } 67 68 hapd->range_req_active = 0; 69 eloop_cancel_timeout(hostapd_range_rep_timeout_handler, hapd, NULL); 70 wpa_printf(MSG_DEBUG, "Range report token %u len %zu", token, len); 71} 72 73 74static void hostapd_handle_beacon_report(struct hostapd_data *hapd, 75 const u8 *addr, u8 token, u8 rep_mode, 76 const u8 *pos, size_t len) 77{ 78 char report[2 * 255 + 1]; 79 80 wpa_printf(MSG_DEBUG, "Beacon report token %u len %zu from " MACSTR, 81 token, len, MAC2STR(addr)); 82 /* Skip to the beginning of the Beacon report */ 83 if (len < 3) 84 return; 85 pos += 3; 86 len -= 3; 87 report[0] = '\0'; 88 if (wpa_snprintf_hex(report, sizeof(report), pos, len) < 0) 89 return; 90 wpa_msg(hapd->msg_ctx, MSG_INFO, BEACON_RESP_RX MACSTR " %u %02x %s", 91 MAC2STR(addr), token, rep_mode, report); 92} 93 94 95static void hostapd_handle_radio_msmt_report(struct hostapd_data *hapd, 96 const u8 *buf, size_t len) 97{ 98 const struct ieee80211_mgmt *mgmt = (const struct ieee80211_mgmt *) buf; 99 const u8 *pos, *ie, *end; 100 u8 token, rep_mode; 101 102 end = buf + len; 103 token = mgmt->u.action.u.rrm.dialog_token; 104 pos = mgmt->u.action.u.rrm.variable; 105 106 while ((ie = get_ie(pos, end - pos, WLAN_EID_MEASURE_REPORT))) { 107 if (ie[1] < 3) { 108 wpa_printf(MSG_DEBUG, "Bad Measurement Report element"); 109 break; 110 } 111 112 rep_mode = ie[3]; 113 wpa_printf(MSG_DEBUG, "Measurement report mode 0x%x type %u", 114 rep_mode, ie[4]); 115 116 switch (ie[4]) { 117 case MEASURE_TYPE_LCI: 118 hostapd_handle_lci_report(hapd, token, ie + 2, ie[1]); 119 break; 120 case MEASURE_TYPE_FTM_RANGE: 121 hostapd_handle_range_report(hapd, token, ie + 2, ie[1]); 122 break; 123 case MEASURE_TYPE_BEACON: 124 hostapd_handle_beacon_report(hapd, mgmt->sa, token, 125 rep_mode, ie + 2, ie[1]); 126 break; 127 default: 128 wpa_printf(MSG_DEBUG, 129 "Measurement report type %u is not supported", 130 ie[4]); 131 break; 132 } 133 134 pos = ie + ie[1] + 2; 135 } 136} 137 138 139static u16 hostapd_parse_location_lci_req_age(const u8 *buf, size_t len) 140{ 141 const u8 *subelem; 142 143 /* Range Request element + Location Subject + Maximum Age subelement */ 144 if (len < 3 + 1 + 4) 145 return 0; 146 147 /* Subelements are arranged as IEs */ 148 subelem = get_ie(buf + 4, len - 4, LCI_REQ_SUBELEM_MAX_AGE); 149 if (subelem && subelem[1] == 2) 150 return WPA_GET_LE16(subelem + 2); 151 152 return 0; 153} 154 155 156static int hostapd_check_lci_age(struct hostapd_neighbor_entry *nr, u16 max_age) 157{ 158 struct os_time curr, diff; 159 unsigned long diff_l; 160 161 if (nr->stationary || max_age == 0xffff) 162 return 1; 163 164 if (!max_age) 165 return 0; 166 167 if (os_get_time(&curr)) 168 return 0; 169 170 os_time_sub(&curr, &nr->lci_date, &diff); 171 172 /* avoid overflow */ 173 if (diff.sec > 0xffff) 174 return 0; 175 176 /* LCI age is calculated in 10th of a second units. */ 177 diff_l = diff.sec * 10 + diff.usec / 100000; 178 179 return max_age > diff_l; 180} 181 182 183static size_t hostapd_neighbor_report_len(struct wpabuf *buf, 184 struct hostapd_neighbor_entry *nr, 185 int send_lci, int send_civic) 186{ 187 size_t len = 2 + wpabuf_len(nr->nr); 188 189 if (send_lci && nr->lci) 190 len += 2 + wpabuf_len(nr->lci); 191 192 if (send_civic && nr->civic) 193 len += 2 + wpabuf_len(nr->civic); 194 195 return len; 196} 197 198 199static void hostapd_send_nei_report_resp(struct hostapd_data *hapd, 200 const u8 *addr, u8 dialog_token, 201 struct wpa_ssid_value *ssid, u8 lci, 202 u8 civic, u16 lci_max_age) 203{ 204 struct hostapd_neighbor_entry *nr; 205 struct wpabuf *buf; 206 u8 *msmt_token; 207 208 /* 209 * The number and length of the Neighbor Report elements in a Neighbor 210 * Report frame is limited by the maximum allowed MMPDU size; + 3 bytes 211 * of RRM header. 212 */ 213 buf = wpabuf_alloc(3 + IEEE80211_MAX_MMPDU_SIZE); 214 if (!buf) 215 return; 216 217 wpabuf_put_u8(buf, WLAN_ACTION_RADIO_MEASUREMENT); 218 wpabuf_put_u8(buf, WLAN_RRM_NEIGHBOR_REPORT_RESPONSE); 219 wpabuf_put_u8(buf, dialog_token); 220 221 dl_list_for_each(nr, &hapd->nr_db, struct hostapd_neighbor_entry, 222 list) { 223 int send_lci; 224 size_t len; 225 226 if (ssid->ssid_len != nr->ssid.ssid_len || 227 os_memcmp(ssid->ssid, nr->ssid.ssid, ssid->ssid_len) != 0) 228 continue; 229 230 send_lci = (lci != 0) && hostapd_check_lci_age(nr, lci_max_age); 231 len = hostapd_neighbor_report_len(buf, nr, send_lci, civic); 232 233 if (len - 2 > 0xff) { 234 wpa_printf(MSG_DEBUG, 235 "NR entry for " MACSTR " exceeds 0xFF bytes", 236 MAC2STR(nr->bssid)); 237 continue; 238 } 239 240 if (len > wpabuf_tailroom(buf)) 241 break; 242 243 wpabuf_put_u8(buf, WLAN_EID_NEIGHBOR_REPORT); 244 wpabuf_put_u8(buf, len - 2); 245 wpabuf_put_buf(buf, nr->nr); 246 247 if (send_lci && nr->lci) { 248 wpabuf_put_u8(buf, WLAN_EID_MEASURE_REPORT); 249 wpabuf_put_u8(buf, wpabuf_len(nr->lci)); 250 /* 251 * Override measurement token - the first byte of the 252 * Measurement Report element. 253 */ 254 msmt_token = wpabuf_put(buf, 0); 255 wpabuf_put_buf(buf, nr->lci); 256 *msmt_token = lci; 257 } 258 259 if (civic && nr->civic) { 260 wpabuf_put_u8(buf, WLAN_EID_MEASURE_REPORT); 261 wpabuf_put_u8(buf, wpabuf_len(nr->civic)); 262 /* 263 * Override measurement token - the first byte of the 264 * Measurement Report element. 265 */ 266 msmt_token = wpabuf_put(buf, 0); 267 wpabuf_put_buf(buf, nr->civic); 268 *msmt_token = civic; 269 } 270 } 271 272 hostapd_drv_send_action(hapd, hapd->iface->freq, 0, addr, 273 wpabuf_head(buf), wpabuf_len(buf)); 274 wpabuf_free(buf); 275} 276 277 278static void hostapd_handle_nei_report_req(struct hostapd_data *hapd, 279 const u8 *buf, size_t len) 280{ 281 const struct ieee80211_mgmt *mgmt = (const struct ieee80211_mgmt *) buf; 282 const u8 *pos, *ie, *end; 283 struct wpa_ssid_value ssid = { 284 .ssid_len = 0 285 }; 286 u8 token; 287 u8 lci = 0, civic = 0; /* Measurement tokens */ 288 u16 lci_max_age = 0; 289 290 if (!(hapd->conf->radio_measurements[0] & 291 WLAN_RRM_CAPS_NEIGHBOR_REPORT)) 292 return; 293 294 end = buf + len; 295 296 token = mgmt->u.action.u.rrm.dialog_token; 297 pos = mgmt->u.action.u.rrm.variable; 298 len = end - pos; 299 300 ie = get_ie(pos, len, WLAN_EID_SSID); 301 if (ie && ie[1] && ie[1] <= SSID_MAX_LEN) { 302 ssid.ssid_len = ie[1]; 303 os_memcpy(ssid.ssid, ie + 2, ssid.ssid_len); 304 } else { 305 ssid.ssid_len = hapd->conf->ssid.ssid_len; 306 os_memcpy(ssid.ssid, hapd->conf->ssid.ssid, ssid.ssid_len); 307 } 308 309 while ((ie = get_ie(pos, len, WLAN_EID_MEASURE_REQUEST))) { 310 if (ie[1] < 3) 311 break; 312 313 wpa_printf(MSG_DEBUG, 314 "Neighbor report request, measure type %u", 315 ie[4]); 316 317 switch (ie[4]) { /* Measurement Type */ 318 case MEASURE_TYPE_LCI: 319 lci = ie[2]; /* Measurement Token */ 320 lci_max_age = hostapd_parse_location_lci_req_age(ie + 2, 321 ie[1]); 322 break; 323 case MEASURE_TYPE_LOCATION_CIVIC: 324 civic = ie[2]; /* Measurement token */ 325 break; 326 } 327 328 pos = ie + ie[1] + 2; 329 len = end - pos; 330 } 331 332 hostapd_send_nei_report_resp(hapd, mgmt->sa, token, &ssid, lci, civic, 333 lci_max_age); 334} 335 336 337void hostapd_handle_radio_measurement(struct hostapd_data *hapd, 338 const u8 *buf, size_t len) 339{ 340 const struct ieee80211_mgmt *mgmt = (const struct ieee80211_mgmt *) buf; 341 342 /* 343 * Check for enough bytes: header + (1B)Category + (1B)Action + 344 * (1B)Dialog Token. 345 */ 346 if (len < IEEE80211_HDRLEN + 3) 347 return; 348 349 wpa_printf(MSG_DEBUG, "Radio measurement frame, action %u from " MACSTR, 350 mgmt->u.action.u.rrm.action, MAC2STR(mgmt->sa)); 351 352 switch (mgmt->u.action.u.rrm.action) { 353 case WLAN_RRM_RADIO_MEASUREMENT_REPORT: 354 hostapd_handle_radio_msmt_report(hapd, buf, len); 355 break; 356 case WLAN_RRM_NEIGHBOR_REPORT_REQUEST: 357 hostapd_handle_nei_report_req(hapd, buf, len); 358 break; 359 default: 360 wpa_printf(MSG_DEBUG, "RRM action %u is not supported", 361 mgmt->u.action.u.rrm.action); 362 break; 363 } 364} 365 366 367int hostapd_send_lci_req(struct hostapd_data *hapd, const u8 *addr) 368{ 369 struct wpabuf *buf; 370 struct sta_info *sta = ap_get_sta(hapd, addr); 371 int ret; 372 373 if (!sta || !(sta->flags & WLAN_STA_AUTHORIZED)) { 374 wpa_printf(MSG_INFO, 375 "Request LCI: Destination address is not connected"); 376 return -1; 377 } 378 379 if (!(sta->rrm_enabled_capa[1] & WLAN_RRM_CAPS_LCI_MEASUREMENT)) { 380 wpa_printf(MSG_INFO, 381 "Request LCI: Station does not support LCI in RRM"); 382 return -1; 383 } 384 385 if (hapd->lci_req_active) { 386 wpa_printf(MSG_DEBUG, 387 "Request LCI: LCI request is already in process, overriding"); 388 hapd->lci_req_active = 0; 389 eloop_cancel_timeout(hostapd_lci_rep_timeout_handler, hapd, 390 NULL); 391 } 392 393 /* Measurement request (5) + Measurement element with LCI (10) */ 394 buf = wpabuf_alloc(5 + 10); 395 if (!buf) 396 return -1; 397 398 hapd->lci_req_token++; 399 /* For wraparounds - the token must be nonzero */ 400 if (!hapd->lci_req_token) 401 hapd->lci_req_token++; 402 403 wpabuf_put_u8(buf, WLAN_ACTION_RADIO_MEASUREMENT); 404 wpabuf_put_u8(buf, WLAN_RRM_RADIO_MEASUREMENT_REQUEST); 405 wpabuf_put_u8(buf, hapd->lci_req_token); 406 wpabuf_put_le16(buf, 0); /* Number of repetitions */ 407 408 wpabuf_put_u8(buf, WLAN_EID_MEASURE_REQUEST); 409 wpabuf_put_u8(buf, 3 + 1 + 4); 410 411 wpabuf_put_u8(buf, 1); /* Measurement Token */ 412 /* 413 * Parallel and Enable bits are 0, Duration, Request, and Report are 414 * reserved. 415 */ 416 wpabuf_put_u8(buf, 0); 417 wpabuf_put_u8(buf, MEASURE_TYPE_LCI); 418 419 wpabuf_put_u8(buf, LOCATION_SUBJECT_REMOTE); 420 421 wpabuf_put_u8(buf, LCI_REQ_SUBELEM_MAX_AGE); 422 wpabuf_put_u8(buf, 2); 423 wpabuf_put_le16(buf, 0xffff); 424 425 ret = hostapd_drv_send_action(hapd, hapd->iface->freq, 0, addr, 426 wpabuf_head(buf), wpabuf_len(buf)); 427 wpabuf_free(buf); 428 if (ret) 429 return ret; 430 431 hapd->lci_req_active = 1; 432 433 eloop_register_timeout(HOSTAPD_RRM_REQUEST_TIMEOUT, 0, 434 hostapd_lci_rep_timeout_handler, hapd, NULL); 435 436 return 0; 437} 438 439 440int hostapd_send_range_req(struct hostapd_data *hapd, const u8 *addr, 441 u16 random_interval, u8 min_ap, 442 const u8 *responders, unsigned int n_responders) 443{ 444 struct wpabuf *buf; 445 struct sta_info *sta; 446 u8 *len; 447 unsigned int i; 448 int ret; 449 450 wpa_printf(MSG_DEBUG, "Request range: dest addr " MACSTR 451 " rand interval %u min AP %u n_responders %u", MAC2STR(addr), 452 random_interval, min_ap, n_responders); 453 454 if (min_ap == 0 || min_ap > n_responders) { 455 wpa_printf(MSG_INFO, "Request range: Wrong min AP count"); 456 return -1; 457 } 458 459 sta = ap_get_sta(hapd, addr); 460 if (!sta || !(sta->flags & WLAN_STA_AUTHORIZED)) { 461 wpa_printf(MSG_INFO, 462 "Request range: Destination address is not connected"); 463 return -1; 464 } 465 466 if (!(sta->rrm_enabled_capa[4] & WLAN_RRM_CAPS_FTM_RANGE_REPORT)) { 467 wpa_printf(MSG_ERROR, 468 "Request range: Destination station does not support FTM range report in RRM"); 469 return -1; 470 } 471 472 if (hapd->range_req_active) { 473 wpa_printf(MSG_DEBUG, 474 "Request range: Range request is already in process; overriding"); 475 hapd->range_req_active = 0; 476 eloop_cancel_timeout(hostapd_range_rep_timeout_handler, hapd, 477 NULL); 478 } 479 480 /* Action + measurement type + token + reps + EID + len = 7 */ 481 buf = wpabuf_alloc(7 + 255); 482 if (!buf) 483 return -1; 484 485 hapd->range_req_token++; 486 if (!hapd->range_req_token) /* For wraparounds */ 487 hapd->range_req_token++; 488 489 /* IEEE P802.11-REVmc/D5.0, 9.6.7.2 */ 490 wpabuf_put_u8(buf, WLAN_ACTION_RADIO_MEASUREMENT); 491 wpabuf_put_u8(buf, WLAN_RRM_RADIO_MEASUREMENT_REQUEST); 492 wpabuf_put_u8(buf, hapd->range_req_token); /* Dialog Token */ 493 wpabuf_put_le16(buf, 0); /* Number of Repetitions */ 494 495 /* IEEE P802.11-REVmc/D5.0, 9.4.2.21 */ 496 wpabuf_put_u8(buf, WLAN_EID_MEASURE_REQUEST); 497 len = wpabuf_put(buf, 1); /* Length will be set later */ 498 499 wpabuf_put_u8(buf, 1); /* Measurement Token */ 500 /* 501 * Parallel and Enable bits are 0; Duration, Request, and Report are 502 * reserved. 503 */ 504 wpabuf_put_u8(buf, 0); /* Measurement Request Mode */ 505 wpabuf_put_u8(buf, MEASURE_TYPE_FTM_RANGE); /* Measurement Type */ 506 507 /* IEEE P802.11-REVmc/D5.0, 9.4.2.21.19 */ 508 wpabuf_put_le16(buf, random_interval); /* Randomization Interval */ 509 wpabuf_put_u8(buf, min_ap); /* Minimum AP Count */ 510 511 /* FTM Range Subelements */ 512 513 /* 514 * Taking the neighbor report part of the range request from neighbor 515 * database instead of requesting the separate bits of data from the 516 * user. 517 */ 518 for (i = 0; i < n_responders; i++) { 519 struct hostapd_neighbor_entry *nr; 520 521 nr = hostapd_neighbor_get(hapd, responders + ETH_ALEN * i, 522 NULL); 523 if (!nr) { 524 wpa_printf(MSG_INFO, "Missing neighbor report for " 525 MACSTR, MAC2STR(responders + ETH_ALEN * i)); 526 wpabuf_free(buf); 527 return -1; 528 } 529 530 if (wpabuf_tailroom(buf) < 2 + wpabuf_len(nr->nr)) { 531 wpa_printf(MSG_ERROR, "Too long range request"); 532 wpabuf_free(buf); 533 return -1; 534 } 535 536 wpabuf_put_u8(buf, WLAN_EID_NEIGHBOR_REPORT); 537 wpabuf_put_u8(buf, wpabuf_len(nr->nr)); 538 wpabuf_put_buf(buf, nr->nr); 539 } 540 541 /* Action + measurement type + token + reps + EID + len = 7 */ 542 *len = wpabuf_len(buf) - 7; 543 544 ret = hostapd_drv_send_action(hapd, hapd->iface->freq, 0, addr, 545 wpabuf_head(buf), wpabuf_len(buf)); 546 wpabuf_free(buf); 547 if (ret) 548 return ret; 549 550 hapd->range_req_active = 1; 551 552 eloop_register_timeout(HOSTAPD_RRM_REQUEST_TIMEOUT, 0, 553 hostapd_range_rep_timeout_handler, hapd, NULL); 554 555 return 0; 556} 557 558 559void hostapd_clean_rrm(struct hostapd_data *hapd) 560{ 561 hostapd_free_neighbor_db(hapd); 562 eloop_cancel_timeout(hostapd_lci_rep_timeout_handler, hapd, NULL); 563 hapd->lci_req_active = 0; 564 eloop_cancel_timeout(hostapd_range_rep_timeout_handler, hapd, NULL); 565 hapd->range_req_active = 0; 566} 567 568 569int hostapd_send_beacon_req(struct hostapd_data *hapd, const u8 *addr, 570 u8 req_mode, const struct wpabuf *req) 571{ 572 struct wpabuf *buf; 573 struct sta_info *sta = ap_get_sta(hapd, addr); 574 int ret; 575 enum beacon_report_mode mode; 576 const u8 *pos; 577 578 /* Request data: 579 * Operating Class (1), Channel Number (1), Randomization Interval (2), 580 * Measurement Duration (2), Measurement Mode (1), BSSID (6), 581 * Optional Subelements (variable) 582 */ 583 if (wpabuf_len(req) < 13) { 584 wpa_printf(MSG_INFO, "Beacon request: Too short request data"); 585 return -1; 586 } 587 pos = wpabuf_head(req); 588 mode = pos[6]; 589 590 if (!sta || !(sta->flags & WLAN_STA_AUTHORIZED)) { 591 wpa_printf(MSG_INFO, 592 "Beacon request: " MACSTR " is not connected", 593 MAC2STR(addr)); 594 return -1; 595 } 596 597 switch (mode) { 598 case BEACON_REPORT_MODE_PASSIVE: 599 if (!(sta->rrm_enabled_capa[0] & 600 WLAN_RRM_CAPS_BEACON_REPORT_PASSIVE)) { 601 wpa_printf(MSG_INFO, 602 "Beacon request: " MACSTR 603 " does not support passive beacon report", 604 MAC2STR(addr)); 605 return -1; 606 } 607 break; 608 case BEACON_REPORT_MODE_ACTIVE: 609 if (!(sta->rrm_enabled_capa[0] & 610 WLAN_RRM_CAPS_BEACON_REPORT_ACTIVE)) { 611 wpa_printf(MSG_INFO, 612 "Beacon request: " MACSTR 613 " does not support active beacon report", 614 MAC2STR(addr)); 615 return -1; 616 } 617 break; 618 case BEACON_REPORT_MODE_TABLE: 619 if (!(sta->rrm_enabled_capa[0] & 620 WLAN_RRM_CAPS_BEACON_REPORT_TABLE)) { 621 wpa_printf(MSG_INFO, 622 "Beacon request: " MACSTR 623 " does not support table beacon report", 624 MAC2STR(addr)); 625 return -1; 626 } 627 break; 628 default: 629 wpa_printf(MSG_INFO, 630 "Beacon request: Unknown measurement mode %d", mode); 631 return -1; 632 } 633 634 buf = wpabuf_alloc(5 + 2 + 3 + wpabuf_len(req)); 635 if (!buf) 636 return -1; 637 638 hapd->beacon_req_token++; 639 if (!hapd->beacon_req_token) 640 hapd->beacon_req_token++; 641 642 wpabuf_put_u8(buf, WLAN_ACTION_RADIO_MEASUREMENT); 643 wpabuf_put_u8(buf, WLAN_RRM_RADIO_MEASUREMENT_REQUEST); 644 wpabuf_put_u8(buf, hapd->beacon_req_token); 645 wpabuf_put_le16(buf, 0); /* Number of repetitions */ 646 647 /* Measurement Request element */ 648 wpabuf_put_u8(buf, WLAN_EID_MEASURE_REQUEST); 649 wpabuf_put_u8(buf, 3 + wpabuf_len(req)); 650 wpabuf_put_u8(buf, 1); /* Measurement Token */ 651 wpabuf_put_u8(buf, req_mode); /* Measurement Request Mode */ 652 wpabuf_put_u8(buf, MEASURE_TYPE_BEACON); /* Measurement Type */ 653 wpabuf_put_buf(buf, req); 654 655 ret = hostapd_drv_send_action(hapd, hapd->iface->freq, 0, addr, 656 wpabuf_head(buf), wpabuf_len(buf)); 657 wpabuf_free(buf); 658 if (ret < 0) 659 return ret; 660 661 return hapd->beacon_req_token; 662} 663 664 665void hostapd_rrm_beacon_req_tx_status(struct hostapd_data *hapd, 666 const struct ieee80211_mgmt *mgmt, 667 size_t len, int ok) 668{ 669 if (len < 24 + 3) 670 return; 671 wpa_msg(hapd->msg_ctx, MSG_INFO, BEACON_REQ_TX_STATUS MACSTR 672 " %u ack=%d", MAC2STR(mgmt->da), 673 mgmt->u.action.u.rrm.dialog_token, ok); 674} 675