1 /* 2 * wpa_supplicant - MBO 3 * 4 * Copyright(c) 2015 Intel Deutschland GmbH 5 * Contact Information: 6 * Intel Linux Wireless <ilw@linux.intel.com> 7 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 8 * 9 * This software may be distributed under the terms of the BSD license. 10 * See README for more details. 11 */ 12 13 #include "utils/includes.h" 14 15 #include "utils/common.h" 16 #include "common/ieee802_11_defs.h" 17 #include "common/gas.h" 18 #include "rsn_supp/wpa.h" 19 #include "config.h" 20 #include "wpa_supplicant_i.h" 21 #include "driver_i.h" 22 #include "bss.h" 23 #include "scan.h" 24 25 /* type + length + oui + oui type */ 26 #define MBO_IE_HEADER 6 27 28 29 static int wpas_mbo_validate_non_pref_chan(u8 oper_class, u8 chan, u8 reason) 30 { 31 if (reason > MBO_NON_PREF_CHAN_REASON_INT_INTERFERENCE) 32 return -1; 33 34 /* Only checking the validity of the channel and oper_class */ 35 if (ieee80211_chan_to_freq(NULL, oper_class, chan) == -1) 36 return -1; 37 38 return 0; 39 } 40 41 42 const u8 * mbo_attr_from_mbo_ie(const u8 *mbo_ie, enum mbo_attr_id attr) 43 { 44 const u8 *mbo; 45 u8 ie_len = mbo_ie[1]; 46 47 if (ie_len < MBO_IE_HEADER - 2) 48 return NULL; 49 mbo = mbo_ie + MBO_IE_HEADER; 50 51 return get_ie(mbo, 2 + ie_len - MBO_IE_HEADER, attr); 52 } 53 54 55 const u8 * mbo_get_attr_from_ies(const u8 *ies, size_t ies_len, 56 enum mbo_attr_id attr) 57 { 58 const u8 *mbo_ie; 59 60 mbo_ie = get_vendor_ie(ies, ies_len, MBO_IE_VENDOR_TYPE); 61 if (!mbo_ie) 62 return NULL; 63 64 return mbo_attr_from_mbo_ie(mbo_ie, attr); 65 } 66 67 68 const u8 * wpas_mbo_get_bss_attr(struct wpa_bss *bss, enum mbo_attr_id attr) 69 { 70 const u8 *mbo, *end; 71 72 if (!bss) 73 return NULL; 74 75 mbo = wpa_bss_get_vendor_ie(bss, MBO_IE_VENDOR_TYPE); 76 if (!mbo) 77 return NULL; 78 79 end = mbo + 2 + mbo[1]; 80 mbo += MBO_IE_HEADER; 81 82 return get_ie(mbo, end - mbo, attr); 83 } 84 85 86 void wpas_mbo_check_pmf(struct wpa_supplicant *wpa_s, struct wpa_bss *bss, 87 struct wpa_ssid *ssid) 88 { 89 const u8 *rsne, *mbo, *oce; 90 struct wpa_ie_data ie; 91 92 wpa_s->disable_mbo_oce = 0; 93 if (!bss) 94 return; 95 mbo = wpas_mbo_get_bss_attr(bss, MBO_ATTR_ID_AP_CAPA_IND); 96 oce = wpas_mbo_get_bss_attr(bss, OCE_ATTR_ID_CAPA_IND); 97 if (!mbo && !oce) 98 return; 99 if (oce && oce[1] >= 1 && (oce[2] & OCE_IS_STA_CFON)) 100 return; /* STA-CFON is not required to enable PMF */ 101 rsne = wpa_bss_get_ie(bss, WLAN_EID_RSN); 102 if (!rsne || wpa_parse_wpa_ie(rsne, 2 + rsne[1], &ie) < 0) 103 return; /* AP is not using RSN */ 104 105 if (!(ie.capabilities & WPA_CAPABILITY_MFPC)) 106 wpa_s->disable_mbo_oce = 1; /* AP uses RSN without PMF */ 107 if (wpas_get_ssid_pmf(wpa_s, ssid) == NO_MGMT_FRAME_PROTECTION) 108 wpa_s->disable_mbo_oce = 1; /* STA uses RSN without PMF */ 109 if (wpa_s->disable_mbo_oce) 110 wpa_printf(MSG_INFO, 111 "MBO: Disable MBO/OCE due to misbehaving AP not having enabled PMF"); 112 } 113 114 115 static void wpas_mbo_non_pref_chan_attr_body(struct wpa_supplicant *wpa_s, 116 struct wpabuf *mbo, 117 u8 start, u8 end) 118 { 119 u8 i; 120 121 wpabuf_put_u8(mbo, wpa_s->non_pref_chan[start].oper_class); 122 123 for (i = start; i < end; i++) 124 wpabuf_put_u8(mbo, wpa_s->non_pref_chan[i].chan); 125 126 wpabuf_put_u8(mbo, wpa_s->non_pref_chan[start].preference); 127 wpabuf_put_u8(mbo, wpa_s->non_pref_chan[start].reason); 128 } 129 130 131 static void wpas_mbo_non_pref_chan_attr_hdr(struct wpabuf *mbo, size_t size) 132 { 133 wpabuf_put_u8(mbo, MBO_ATTR_ID_NON_PREF_CHAN_REPORT); 134 wpabuf_put_u8(mbo, size); /* Length */ 135 } 136 137 138 static void wpas_mbo_non_pref_chan_attr(struct wpa_supplicant *wpa_s, 139 struct wpabuf *mbo, u8 start, u8 end) 140 { 141 size_t size = end - start + 3; 142 143 if (size + 2 > wpabuf_tailroom(mbo)) 144 return; 145 146 wpas_mbo_non_pref_chan_attr_hdr(mbo, size); 147 wpas_mbo_non_pref_chan_attr_body(wpa_s, mbo, start, end); 148 } 149 150 151 static void wpas_mbo_non_pref_chan_subelem_hdr(struct wpabuf *mbo, u8 len) 152 { 153 wpabuf_put_u8(mbo, WLAN_EID_VENDOR_SPECIFIC); 154 wpabuf_put_u8(mbo, len); /* Length */ 155 wpabuf_put_be24(mbo, OUI_WFA); 156 wpabuf_put_u8(mbo, MBO_ATTR_ID_NON_PREF_CHAN_REPORT); 157 } 158 159 160 static void wpas_mbo_non_pref_chan_subelement(struct wpa_supplicant *wpa_s, 161 struct wpabuf *mbo, u8 start, 162 u8 end) 163 { 164 size_t size = end - start + 7; 165 166 if (size + 2 > wpabuf_tailroom(mbo)) 167 return; 168 169 wpas_mbo_non_pref_chan_subelem_hdr(mbo, size); 170 wpas_mbo_non_pref_chan_attr_body(wpa_s, mbo, start, end); 171 } 172 173 174 static void wpas_mbo_non_pref_chan_attrs(struct wpa_supplicant *wpa_s, 175 struct wpabuf *mbo, int subelement) 176 { 177 u8 i, start = 0; 178 struct wpa_mbo_non_pref_channel *start_pref; 179 180 if (!wpa_s->non_pref_chan || !wpa_s->non_pref_chan_num) { 181 if (subelement) 182 wpas_mbo_non_pref_chan_subelem_hdr(mbo, 4); 183 else 184 wpas_mbo_non_pref_chan_attr_hdr(mbo, 0); 185 return; 186 } 187 start_pref = &wpa_s->non_pref_chan[0]; 188 189 for (i = 1; i <= wpa_s->non_pref_chan_num; i++) { 190 struct wpa_mbo_non_pref_channel *non_pref = NULL; 191 192 if (i < wpa_s->non_pref_chan_num) 193 non_pref = &wpa_s->non_pref_chan[i]; 194 if (!non_pref || 195 non_pref->oper_class != start_pref->oper_class || 196 non_pref->reason != start_pref->reason || 197 non_pref->preference != start_pref->preference) { 198 if (subelement) 199 wpas_mbo_non_pref_chan_subelement(wpa_s, mbo, 200 start, i); 201 else 202 wpas_mbo_non_pref_chan_attr(wpa_s, mbo, start, 203 i); 204 205 if (!non_pref) 206 return; 207 208 start = i; 209 start_pref = non_pref; 210 } 211 } 212 } 213 214 215 int wpas_mbo_ie(struct wpa_supplicant *wpa_s, u8 *buf, size_t len, 216 int add_oce_capa) 217 { 218 struct wpabuf *mbo; 219 int res; 220 221 if (len < MBO_IE_HEADER + 3 + 7 + 222 ((wpa_s->enable_oce & OCE_STA) ? 3 : 0)) 223 return 0; 224 225 /* Leave room for the MBO IE header */ 226 mbo = wpabuf_alloc(len - MBO_IE_HEADER); 227 if (!mbo) 228 return 0; 229 230 /* Add non-preferred channels attribute */ 231 wpas_mbo_non_pref_chan_attrs(wpa_s, mbo, 0); 232 233 /* 234 * Send cellular capabilities attribute even if AP does not advertise 235 * cellular capabilities. 236 */ 237 wpabuf_put_u8(mbo, MBO_ATTR_ID_CELL_DATA_CAPA); 238 wpabuf_put_u8(mbo, 1); 239 wpabuf_put_u8(mbo, wpa_s->conf->mbo_cell_capa); 240 241 /* Add OCE capability indication attribute if OCE is enabled */ 242 if ((wpa_s->enable_oce & OCE_STA) && add_oce_capa) { 243 wpabuf_put_u8(mbo, OCE_ATTR_ID_CAPA_IND); 244 wpabuf_put_u8(mbo, 1); 245 wpabuf_put_u8(mbo, OCE_RELEASE); 246 } 247 248 res = mbo_add_ie(buf, len, wpabuf_head_u8(mbo), wpabuf_len(mbo)); 249 if (!res) 250 wpa_printf(MSG_ERROR, "Failed to add MBO/OCE IE"); 251 252 wpabuf_free(mbo); 253 return res; 254 } 255 256 257 static void wpas_mbo_send_wnm_notification(struct wpa_supplicant *wpa_s, 258 const u8 *data, size_t len) 259 { 260 struct wpabuf *buf; 261 int res; 262 263 /* 264 * Send WNM-Notification Request frame only in case of a change in 265 * non-preferred channels list during association, if the AP supports 266 * MBO. 267 */ 268 if (wpa_s->wpa_state != WPA_COMPLETED || !wpa_s->current_bss || 269 !wpa_bss_get_vendor_ie(wpa_s->current_bss, MBO_IE_VENDOR_TYPE)) 270 return; 271 272 buf = wpabuf_alloc(4 + len); 273 if (!buf) 274 return; 275 276 wpabuf_put_u8(buf, WLAN_ACTION_WNM); 277 wpabuf_put_u8(buf, WNM_NOTIFICATION_REQ); 278 wpa_s->mbo_wnm_token++; 279 if (wpa_s->mbo_wnm_token == 0) 280 wpa_s->mbo_wnm_token++; 281 wpabuf_put_u8(buf, wpa_s->mbo_wnm_token); 282 wpabuf_put_u8(buf, WLAN_EID_VENDOR_SPECIFIC); /* Type */ 283 284 wpabuf_put_data(buf, data, len); 285 286 res = wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid, 287 wpa_s->own_addr, wpa_s->bssid, 288 wpabuf_head(buf), wpabuf_len(buf), 0); 289 if (res < 0) 290 wpa_printf(MSG_DEBUG, 291 "Failed to send WNM-Notification Request frame with non-preferred channel list"); 292 293 wpabuf_free(buf); 294 } 295 296 297 static void wpas_mbo_non_pref_chan_changed(struct wpa_supplicant *wpa_s) 298 { 299 struct wpabuf *buf; 300 301 buf = wpabuf_alloc(512); 302 if (!buf) 303 return; 304 305 wpas_mbo_non_pref_chan_attrs(wpa_s, buf, 1); 306 wpas_mbo_send_wnm_notification(wpa_s, wpabuf_head_u8(buf), 307 wpabuf_len(buf)); 308 wpas_update_mbo_connect_params(wpa_s); 309 wpabuf_free(buf); 310 } 311 312 313 static int wpa_non_pref_chan_is_eq(struct wpa_mbo_non_pref_channel *a, 314 struct wpa_mbo_non_pref_channel *b) 315 { 316 return a->oper_class == b->oper_class && a->chan == b->chan; 317 } 318 319 320 /* 321 * wpa_non_pref_chan_cmp - Compare two channels for sorting 322 * 323 * In MBO IE non-preferred channel subelement we can put many channels in an 324 * attribute if they are in the same operating class and have the same 325 * preference and reason. To make it easy for the functions that build 326 * the IE attributes and WNM Request subelements, save the channels sorted 327 * by their oper_class and reason. 328 */ 329 static int wpa_non_pref_chan_cmp(const void *_a, const void *_b) 330 { 331 const struct wpa_mbo_non_pref_channel *a = _a, *b = _b; 332 333 if (a->oper_class != b->oper_class) 334 return (int) a->oper_class - (int) b->oper_class; 335 if (a->reason != b->reason) 336 return (int) a->reason - (int) b->reason; 337 return (int) a->preference - (int) b->preference; 338 } 339 340 341 int wpas_mbo_update_non_pref_chan(struct wpa_supplicant *wpa_s, 342 const char *non_pref_chan) 343 { 344 char *cmd, *token, *context = NULL; 345 struct wpa_mbo_non_pref_channel *chans = NULL, *tmp_chans; 346 size_t num = 0, size = 0; 347 unsigned i; 348 349 wpa_printf(MSG_DEBUG, "MBO: Update non-preferred channels, non_pref_chan=%s", 350 non_pref_chan ? non_pref_chan : "N/A"); 351 352 /* 353 * The shortest channel configuration is 7 characters - 3 colons and 354 * 4 values. 355 */ 356 if (!non_pref_chan || os_strlen(non_pref_chan) < 7) 357 goto update; 358 359 cmd = os_strdup(non_pref_chan); 360 if (!cmd) 361 return -1; 362 363 while ((token = str_token(cmd, " ", &context))) { 364 struct wpa_mbo_non_pref_channel *chan; 365 int ret; 366 unsigned int _oper_class; 367 unsigned int _chan; 368 unsigned int _preference; 369 unsigned int _reason; 370 371 if (num == size) { 372 size = size ? size * 2 : 1; 373 tmp_chans = os_realloc_array(chans, size, 374 sizeof(*chans)); 375 if (!tmp_chans) { 376 wpa_printf(MSG_ERROR, 377 "Couldn't reallocate non_pref_chan"); 378 goto fail; 379 } 380 chans = tmp_chans; 381 } 382 383 chan = &chans[num]; 384 385 ret = sscanf(token, "%u:%u:%u:%u", &_oper_class, 386 &_chan, &_preference, &_reason); 387 if (ret != 4 || 388 _oper_class > 255 || _chan > 255 || 389 _preference > 255 || _reason > 65535 ) { 390 wpa_printf(MSG_ERROR, "Invalid non-pref chan input %s", 391 token); 392 goto fail; 393 } 394 chan->oper_class = _oper_class; 395 chan->chan = _chan; 396 chan->preference = _preference; 397 chan->reason = _reason; 398 399 if (wpas_mbo_validate_non_pref_chan(chan->oper_class, 400 chan->chan, chan->reason)) { 401 wpa_printf(MSG_ERROR, 402 "Invalid non_pref_chan: oper class %d chan %d reason %d", 403 chan->oper_class, chan->chan, chan->reason); 404 goto fail; 405 } 406 407 for (i = 0; i < num; i++) 408 if (wpa_non_pref_chan_is_eq(chan, &chans[i])) 409 break; 410 if (i != num) { 411 wpa_printf(MSG_ERROR, 412 "oper class %d chan %d is duplicated", 413 chan->oper_class, chan->chan); 414 goto fail; 415 } 416 417 num++; 418 } 419 420 os_free(cmd); 421 422 if (chans) { 423 qsort(chans, num, sizeof(struct wpa_mbo_non_pref_channel), 424 wpa_non_pref_chan_cmp); 425 } 426 427 update: 428 os_free(wpa_s->non_pref_chan); 429 wpa_s->non_pref_chan = chans; 430 wpa_s->non_pref_chan_num = num; 431 wpas_mbo_non_pref_chan_changed(wpa_s); 432 433 return 0; 434 435 fail: 436 os_free(chans); 437 os_free(cmd); 438 return -1; 439 } 440 441 442 void wpas_mbo_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ie) 443 { 444 u8 *len; 445 446 wpabuf_put_u8(ie, WLAN_EID_VENDOR_SPECIFIC); 447 len = wpabuf_put(ie, 1); 448 449 wpabuf_put_be24(ie, OUI_WFA); 450 wpabuf_put_u8(ie, MBO_OUI_TYPE); 451 452 wpabuf_put_u8(ie, MBO_ATTR_ID_CELL_DATA_CAPA); 453 wpabuf_put_u8(ie, 1); 454 wpabuf_put_u8(ie, wpa_s->conf->mbo_cell_capa); 455 if (wpa_s->enable_oce & OCE_STA) { 456 wpabuf_put_u8(ie, OCE_ATTR_ID_CAPA_IND); 457 wpabuf_put_u8(ie, 1); 458 wpabuf_put_u8(ie, OCE_RELEASE); 459 } 460 *len = (u8 *) wpabuf_put(ie, 0) - len - 1; 461 } 462 463 464 void wpas_mbo_ie_trans_req(struct wpa_supplicant *wpa_s, const u8 *mbo_ie, 465 size_t len) 466 { 467 const u8 *pos, *cell_pref = NULL; 468 u8 id, elen; 469 u16 disallowed_sec = 0; 470 471 if (len <= 4 || WPA_GET_BE24(mbo_ie) != OUI_WFA || 472 mbo_ie[3] != MBO_OUI_TYPE) 473 return; 474 475 pos = mbo_ie + 4; 476 len -= 4; 477 478 while (len >= 2) { 479 id = *pos++; 480 elen = *pos++; 481 len -= 2; 482 483 if (elen > len) 484 goto fail; 485 486 switch (id) { 487 case MBO_ATTR_ID_CELL_DATA_PREF: 488 if (elen != 1) 489 goto fail; 490 491 if (wpa_s->conf->mbo_cell_capa == 492 MBO_CELL_CAPA_AVAILABLE) 493 cell_pref = pos; 494 else 495 wpa_printf(MSG_DEBUG, 496 "MBO: Station does not support Cellular data connection"); 497 break; 498 case MBO_ATTR_ID_TRANSITION_REASON: 499 if (elen != 1) 500 goto fail; 501 502 wpa_s->wnm_mbo_trans_reason_present = 1; 503 wpa_s->wnm_mbo_transition_reason = *pos; 504 break; 505 case MBO_ATTR_ID_ASSOC_RETRY_DELAY: 506 if (elen != 2) 507 goto fail; 508 509 if (wpa_s->wnm_mode & 510 WNM_BSS_TM_REQ_BSS_TERMINATION_INCLUDED) { 511 wpa_printf(MSG_DEBUG, 512 "MBO: Unexpected association retry delay, BSS is terminating"); 513 goto fail; 514 } else if (wpa_s->wnm_mode & 515 WNM_BSS_TM_REQ_DISASSOC_IMMINENT) { 516 disallowed_sec = WPA_GET_LE16(pos); 517 wpa_printf(MSG_DEBUG, 518 "MBO: Association retry delay: %u", 519 disallowed_sec); 520 } else { 521 wpa_printf(MSG_DEBUG, 522 "MBO: Association retry delay attribute not in disassoc imminent mode"); 523 } 524 525 break; 526 case MBO_ATTR_ID_AP_CAPA_IND: 527 case MBO_ATTR_ID_NON_PREF_CHAN_REPORT: 528 case MBO_ATTR_ID_CELL_DATA_CAPA: 529 case MBO_ATTR_ID_ASSOC_DISALLOW: 530 case MBO_ATTR_ID_TRANSITION_REJECT_REASON: 531 wpa_printf(MSG_DEBUG, 532 "MBO: Attribute %d should not be included in BTM Request frame", 533 id); 534 break; 535 default: 536 wpa_printf(MSG_DEBUG, "MBO: Unknown attribute id %u", 537 id); 538 return; 539 } 540 541 pos += elen; 542 len -= elen; 543 } 544 545 if (cell_pref) 546 wpa_msg(wpa_s, MSG_INFO, MBO_CELL_PREFERENCE "preference=%u", 547 *cell_pref); 548 549 if (wpa_s->wnm_mbo_trans_reason_present) 550 wpa_msg(wpa_s, MSG_INFO, MBO_TRANSITION_REASON "reason=%u", 551 wpa_s->wnm_mbo_transition_reason); 552 553 if (disallowed_sec && wpa_s->current_bss) 554 wpa_bss_tmp_disallow(wpa_s, wpa_s->current_bss->bssid, 555 disallowed_sec, 0); 556 557 return; 558 fail: 559 wpa_printf(MSG_DEBUG, "MBO IE parsing failed (id=%u len=%u left=%zu)", 560 id, elen, len); 561 } 562 563 564 size_t wpas_mbo_ie_bss_trans_reject(struct wpa_supplicant *wpa_s, u8 *pos, 565 size_t len, 566 enum mbo_transition_reject_reason reason) 567 { 568 u8 reject_attr[3]; 569 570 reject_attr[0] = MBO_ATTR_ID_TRANSITION_REJECT_REASON; 571 reject_attr[1] = 1; 572 reject_attr[2] = reason; 573 574 return mbo_add_ie(pos, len, reject_attr, sizeof(reject_attr)); 575 } 576 577 578 void wpas_mbo_update_cell_capa(struct wpa_supplicant *wpa_s, u8 mbo_cell_capa) 579 { 580 u8 cell_capa[7]; 581 582 if (wpa_s->conf->mbo_cell_capa == mbo_cell_capa) { 583 wpa_printf(MSG_DEBUG, 584 "MBO: Cellular capability already set to %u", 585 mbo_cell_capa); 586 return; 587 } 588 589 wpa_s->conf->mbo_cell_capa = mbo_cell_capa; 590 591 cell_capa[0] = WLAN_EID_VENDOR_SPECIFIC; 592 cell_capa[1] = 5; /* Length */ 593 WPA_PUT_BE24(cell_capa + 2, OUI_WFA); 594 cell_capa[5] = MBO_ATTR_ID_CELL_DATA_CAPA; 595 cell_capa[6] = mbo_cell_capa; 596 597 wpas_mbo_send_wnm_notification(wpa_s, cell_capa, 7); 598 wpa_supplicant_set_default_scan_ies(wpa_s); 599 wpas_update_mbo_connect_params(wpa_s); 600 } 601 602 603 struct wpabuf * mbo_build_anqp_buf(struct wpa_supplicant *wpa_s, 604 struct wpa_bss *bss, u32 mbo_subtypes) 605 { 606 struct wpabuf *anqp_buf; 607 u8 *len_pos; 608 u8 i; 609 610 if (!wpa_bss_get_vendor_ie(bss, MBO_IE_VENDOR_TYPE)) { 611 wpa_printf(MSG_INFO, "MBO: " MACSTR 612 " does not support MBO - cannot request MBO ANQP elements from it", 613 MAC2STR(bss->bssid)); 614 return NULL; 615 } 616 617 /* Allocate size for the maximum case - all MBO subtypes are set */ 618 anqp_buf = wpabuf_alloc(9 + MAX_MBO_ANQP_SUBTYPE); 619 if (!anqp_buf) 620 return NULL; 621 622 len_pos = gas_anqp_add_element(anqp_buf, ANQP_VENDOR_SPECIFIC); 623 wpabuf_put_be24(anqp_buf, OUI_WFA); 624 wpabuf_put_u8(anqp_buf, MBO_ANQP_OUI_TYPE); 625 626 wpabuf_put_u8(anqp_buf, MBO_ANQP_SUBTYPE_QUERY_LIST); 627 628 /* The first valid MBO subtype is 1 */ 629 for (i = 1; i <= MAX_MBO_ANQP_SUBTYPE; i++) { 630 if (mbo_subtypes & BIT(i)) 631 wpabuf_put_u8(anqp_buf, i); 632 } 633 634 gas_anqp_set_element_len(anqp_buf, len_pos); 635 636 return anqp_buf; 637 } 638 639 640 void mbo_parse_rx_anqp_resp(struct wpa_supplicant *wpa_s, 641 struct wpa_bss *bss, const u8 *sa, 642 const u8 *data, size_t slen) 643 { 644 const u8 *pos = data; 645 u8 subtype; 646 647 if (slen < 1) 648 return; 649 650 subtype = *pos++; 651 slen--; 652 653 switch (subtype) { 654 case MBO_ANQP_SUBTYPE_CELL_CONN_PREF: 655 if (slen < 1) 656 break; 657 wpa_msg(wpa_s, MSG_INFO, RX_MBO_ANQP MACSTR 658 " cell_conn_pref=%u", MAC2STR(sa), *pos); 659 break; 660 default: 661 wpa_printf(MSG_DEBUG, "MBO: Unsupported ANQP subtype %u", 662 subtype); 663 break; 664 } 665 } 666