1 /* 2 * Copyright (c) 2017-2021 The Linux Foundation. All rights reserved. 3 * Copyright (c) 2021-2024 Qualcomm Innovation Center, Inc. All rights reserved. 4 * 5 * Permission to use, copy, modify, and/or distribute this software for 6 * any purpose with or without fee is hereby granted, provided that the 7 * above copyright notice and this permission notice appear in all 8 * copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL 11 * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED 12 * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE 13 * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 14 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 15 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 16 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 17 * PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 /* 21 * DOC: Defines scan utility functions 22 */ 23 24 #include <wlan_cmn.h> 25 #include <wlan_scan_ucfg_api.h> 26 #include <wlan_scan_utils_api.h> 27 #include <../../core/src/wlan_scan_cache_db.h> 28 #include <../../core/src/wlan_scan_main.h> 29 #include <wlan_reg_services_api.h> 30 #if defined(WLAN_SAE_SINGLE_PMK) && defined(WLAN_FEATURE_ROAM_OFFLOAD) 31 #include <wlan_mlme_api.h> 32 #endif 33 #ifdef WLAN_FEATURE_11BE_MLO 34 #include <wlan_utility.h> 35 #include "wlan_mlo_mgr_public_structs.h" 36 #include <utils_mlo.h> 37 #endif 38 #include "wlan_psoc_mlme_api.h" 39 #include "reg_services_public_struct.h" 40 #ifdef WLAN_FEATURE_ACTION_OUI 41 #include <wlan_action_oui_main.h> 42 #include <wlan_action_oui_public_struct.h> 43 #endif 44 #include <wlan_crypto_global_api.h> 45 46 #define MAX_IE_LEN 1024 47 #define SHORT_SSID_LEN 4 48 #define NEIGHBOR_AP_LEN 1 49 #define BSS_PARAMS_LEN 1 50 51 const char* 52 util_scan_get_ev_type_name(enum scan_event_type type) 53 { 54 static const char * const event_name[] = { 55 [SCAN_EVENT_TYPE_STARTED] = "STARTED", 56 [SCAN_EVENT_TYPE_COMPLETED] = "COMPLETED", 57 [SCAN_EVENT_TYPE_BSS_CHANNEL] = "HOME_CHANNEL", 58 [SCAN_EVENT_TYPE_FOREIGN_CHANNEL] = "FOREIGN_CHANNEL", 59 [SCAN_EVENT_TYPE_DEQUEUED] = "DEQUEUED", 60 [SCAN_EVENT_TYPE_PREEMPTED] = "PREEMPTED", 61 [SCAN_EVENT_TYPE_START_FAILED] = "START_FAILED", 62 [SCAN_EVENT_TYPE_RESTARTED] = "RESTARTED", 63 [SCAN_EVENT_TYPE_FOREIGN_CHANNEL_EXIT] = "FOREIGN_CHANNEL_EXIT", 64 [SCAN_EVENT_TYPE_SUSPENDED] = "SUSPENDED", 65 [SCAN_EVENT_TYPE_RESUMED] = "RESUMED", 66 [SCAN_EVENT_TYPE_NLO_COMPLETE] = "NLO_COMPLETE", 67 [SCAN_EVENT_TYPE_NLO_MATCH] = "NLO_MATCH", 68 [SCAN_EVENT_TYPE_INVALID] = "INVALID", 69 [SCAN_EVENT_TYPE_GPIO_TIMEOUT] = "GPIO_TIMEOUT", 70 [SCAN_EVENT_TYPE_RADIO_MEASUREMENT_START] = 71 "RADIO_MEASUREMENT_START", 72 [SCAN_EVENT_TYPE_RADIO_MEASUREMENT_END] = 73 "RADIO_MEASUREMENT_END", 74 [SCAN_EVENT_TYPE_BSSID_MATCH] = "BSSID_MATCH", 75 [SCAN_EVENT_TYPE_FOREIGN_CHANNEL_GET_NF] = 76 "FOREIGN_CHANNEL_GET_NF", 77 }; 78 79 if (type >= SCAN_EVENT_TYPE_MAX) 80 return "UNKNOWN"; 81 82 return event_name[type]; 83 } 84 85 86 const char* 87 util_scan_get_ev_reason_name(enum scan_completion_reason reason) 88 { 89 static const char * const reason_name[] = { 90 [SCAN_REASON_NONE] = "NONE", 91 [SCAN_REASON_COMPLETED] = "COMPLETED", 92 [SCAN_REASON_CANCELLED] = "CANCELLED", 93 [SCAN_REASON_PREEMPTED] = "PREEMPTED", 94 [SCAN_REASON_TIMEDOUT] = "TIMEDOUT", 95 [SCAN_REASON_INTERNAL_FAILURE] = "INTERNAL_FAILURE", 96 [SCAN_REASON_SUSPENDED] = "SUSPENDED", 97 [SCAN_REASON_RUN_FAILED] = "RUN_FAILED", 98 [SCAN_REASON_TERMINATION_FUNCTION] = "TERMINATION_FUNCTION", 99 [SCAN_REASON_MAX_OFFCHAN_RETRIES] = "MAX_OFFCHAN_RETRIES", 100 [SCAN_REASON_DFS_VIOLATION] = "DFS_NOL_VIOLATION", 101 }; 102 103 if (reason >= SCAN_REASON_MAX) 104 return "UNKNOWN"; 105 106 return reason_name[reason]; 107 } 108 109 qdf_time_t 110 util_get_last_scan_time(struct wlan_objmgr_vdev *vdev) 111 { 112 uint8_t pdev_id; 113 struct wlan_scan_obj *scan_obj; 114 115 if (!vdev) { 116 scm_warn("null vdev"); 117 QDF_ASSERT(0); 118 return 0; 119 } 120 pdev_id = wlan_scan_vdev_get_pdev_id(vdev); 121 scan_obj = wlan_vdev_get_scan_obj(vdev); 122 123 if (scan_obj) 124 return scan_obj->pdev_info[pdev_id].last_scan_time; 125 else 126 return 0; 127 } 128 129 #ifdef WLAN_FEATURE_11BE_MLO 130 uint32_t util_scan_entry_t2lm_len(struct scan_cache_entry *scan_entry) 131 { 132 int i = 0; 133 uint32_t len = 0; 134 135 if (!scan_entry || !scan_entry->ie_list.t2lm[0]) 136 return 0; 137 138 for (i = 0; i < WLAN_MAX_T2LM_IE; i++) { 139 if (scan_entry->ie_list.t2lm[i]) 140 len += scan_entry->ie_list.t2lm[i][TAG_LEN_POS] + 141 sizeof(struct ie_header); 142 } 143 144 return len; 145 } 146 #endif 147 148 bool util_is_rsnxe_h2e_capable(const uint8_t *rsnxe) 149 { 150 const uint8_t *rsnxe_caps; 151 uint8_t cap_len; 152 153 if (!rsnxe) 154 return false; 155 156 rsnxe_caps = wlan_crypto_parse_rsnxe_ie(rsnxe, &cap_len); 157 if (!rsnxe_caps) 158 return false; 159 160 return *rsnxe_caps & WLAN_CRYPTO_RSNX_CAP_SAE_H2E; 161 } 162 163 bool util_scan_entry_sae_h2e_capable(struct scan_cache_entry *scan_entry) 164 { 165 const uint8_t *rsnxe; 166 167 /* If RSN caps are not there, then return false */ 168 if (!util_scan_entry_rsn(scan_entry)) 169 return false; 170 171 /* If not SAE AKM no need to check H2E capability */ 172 if (!WLAN_CRYPTO_IS_AKM_SAE(scan_entry->neg_sec_info.key_mgmt)) 173 return false; 174 175 rsnxe = util_scan_entry_rsnxe(scan_entry); 176 return util_is_rsnxe_h2e_capable(rsnxe); 177 } 178 179 enum wlan_band util_scan_scm_freq_to_band(uint16_t freq) 180 { 181 if (WLAN_REG_IS_24GHZ_CH_FREQ(freq)) 182 return WLAN_BAND_2_4_GHZ; 183 184 return WLAN_BAND_5_GHZ; 185 } 186 187 bool util_is_scan_entry_match( 188 struct scan_cache_entry *entry1, 189 struct scan_cache_entry *entry2) 190 { 191 192 if (entry1->cap_info.wlan_caps.ess != 193 entry2->cap_info.wlan_caps.ess) 194 return false; 195 196 if (entry1->cap_info.wlan_caps.ess && 197 !qdf_mem_cmp(entry1->bssid.bytes, 198 entry2->bssid.bytes, QDF_MAC_ADDR_SIZE)) { 199 /* Check for BSS */ 200 if (util_is_ssid_match(&entry1->ssid, &entry2->ssid) || 201 util_scan_is_null_ssid(&entry1->ssid) || 202 util_scan_is_null_ssid(&entry2->ssid)) 203 return true; 204 } else if (entry1->cap_info.wlan_caps.ibss && 205 (entry1->channel.chan_freq == 206 entry2->channel.chan_freq)) { 207 /* 208 * Same channel cannot have same SSID for 209 * different IBSS, so no need to check BSSID 210 */ 211 if (util_is_ssid_match( 212 &entry1->ssid, &entry2->ssid)) 213 return true; 214 } else if (!entry1->cap_info.wlan_caps.ibss && 215 !entry1->cap_info.wlan_caps.ess && 216 !qdf_mem_cmp(entry1->bssid.bytes, 217 entry2->bssid.bytes, QDF_MAC_ADDR_SIZE)) { 218 /* In case of P2P devices, ess and ibss will be set to zero */ 219 return true; 220 } 221 222 return false; 223 } 224 225 static bool util_is_pureg_rate(uint8_t *rates, uint8_t nrates) 226 { 227 static const uint8_t g_rates[] = {12, 18, 24, 36, 48, 72, 96, 108}; 228 bool pureg = false; 229 uint8_t i, j; 230 231 for (i = 0; i < nrates; i++) { 232 for (j = 0; j < QDF_ARRAY_SIZE(g_rates); j++) { 233 if (WLAN_RV(rates[i]) == g_rates[j]) { 234 pureg = true; 235 break; 236 } 237 } 238 if (pureg) 239 break; 240 } 241 242 return pureg; 243 } 244 245 #ifdef WLAN_FEATURE_11BE 246 static enum wlan_phymode 247 util_scan_get_phymode_11be(struct wlan_objmgr_pdev *pdev, 248 struct scan_cache_entry *scan_params, 249 enum wlan_phymode phymode, 250 uint8_t band_mask) 251 { 252 struct wlan_ie_ehtops *eht_ops; 253 uint8_t width; 254 255 eht_ops = (struct wlan_ie_ehtops *)util_scan_entry_ehtop(scan_params); 256 if (!util_scan_entry_ehtcap(scan_params) || !eht_ops) 257 return phymode; 258 259 if (QDF_GET_BITS(eht_ops->ehtop_param, 260 EHTOP_INFO_PRESENT_IDX, EHTOP_INFO_PRESENT_BITS)) { 261 width = QDF_GET_BITS(eht_ops->control, 262 EHTOP_INFO_CHAN_WIDTH_IDX, 263 EHTOP_INFO_CHAN_WIDTH_BITS); 264 switch (width) { 265 case WLAN_EHT_CHWIDTH_20: 266 phymode = WLAN_PHYMODE_11BEA_EHT20; 267 break; 268 case WLAN_EHT_CHWIDTH_40: 269 phymode = WLAN_PHYMODE_11BEA_EHT40; 270 break; 271 case WLAN_EHT_CHWIDTH_80: 272 phymode = WLAN_PHYMODE_11BEA_EHT80; 273 break; 274 case WLAN_EHT_CHWIDTH_160: 275 phymode = WLAN_PHYMODE_11BEA_EHT160; 276 break; 277 case WLAN_EHT_CHWIDTH_320: 278 phymode = WLAN_PHYMODE_11BEA_EHT320; 279 break; 280 default: 281 scm_debug("Invalid eht_ops width: %d", width); 282 phymode = WLAN_PHYMODE_11BEA_EHT20; 283 break; 284 } 285 } else { 286 switch (phymode) { 287 case WLAN_PHYMODE_11AXA_HE20: 288 phymode = WLAN_PHYMODE_11BEA_EHT20; 289 break; 290 case WLAN_PHYMODE_11AXG_HE20: 291 phymode = WLAN_PHYMODE_11BEG_EHT20; 292 break; 293 case WLAN_PHYMODE_11AXA_HE40: 294 phymode = WLAN_PHYMODE_11BEA_EHT40; 295 break; 296 case WLAN_PHYMODE_11AXG_HE40: 297 phymode = WLAN_PHYMODE_11BEG_EHT40; 298 break; 299 case WLAN_PHYMODE_11AXA_HE80: 300 phymode = WLAN_PHYMODE_11BEA_EHT80; 301 break; 302 case WLAN_PHYMODE_11AXA_HE160: 303 phymode = WLAN_PHYMODE_11BEA_EHT160; 304 break; 305 default: 306 break; 307 } 308 } 309 310 if (QDF_GET_BITS(eht_ops->ehtop_param, 311 EHTOP_INFO_PRESENT_IDX, EHTOP_INFO_PRESENT_BITS)) { 312 scan_params->channel.cfreq0 = 313 wlan_reg_chan_band_to_freq(pdev, 314 eht_ops->ccfs0, 315 band_mask); 316 scan_params->channel.cfreq1 = 317 wlan_reg_chan_band_to_freq(pdev, 318 eht_ops->ccfs1, 319 band_mask); 320 } 321 322 if (QDF_GET_BITS(eht_ops->ehtop_param, 323 EHTOP_PARAM_DISABLED_SC_BITMAP_PRESENT_IDX, 324 EHTOP_PARAM_DISABLED_SC_BITMAP_PRESENT_BITS)) { 325 scan_params->channel.puncture_bitmap = 326 QDF_GET_BITS(eht_ops->disabled_sub_chan_bitmap[0], 327 0, 8); 328 scan_params->channel.puncture_bitmap |= 329 QDF_GET_BITS(eht_ops->disabled_sub_chan_bitmap[1], 330 0, 8) << 8; 331 } else { 332 scan_params->channel.puncture_bitmap = 0; 333 } 334 335 return phymode; 336 } 337 #else 338 static enum wlan_phymode 339 util_scan_get_phymode_11be(struct wlan_objmgr_pdev *pdev, 340 struct scan_cache_entry *scan_params, 341 enum wlan_phymode phymode, 342 uint8_t band_mask) 343 { 344 return phymode; 345 } 346 #endif 347 348 #ifdef CONFIG_BAND_6GHZ 349 static struct he_oper_6g_param *util_scan_get_he_6g_params(uint8_t *he_ops) 350 { 351 uint8_t len; 352 uint32_t he_oper_params; 353 354 if (!he_ops) 355 return NULL; 356 357 len = he_ops[1]; 358 he_ops += sizeof(struct ie_header); 359 360 if (len < WLAN_HEOP_FIXED_PARAM_LENGTH) 361 return NULL; 362 363 /* element id extension */ 364 he_ops++; 365 len--; 366 367 he_oper_params = LE_READ_4(he_ops); 368 if (!(he_oper_params & WLAN_HEOP_6GHZ_INFO_PRESENT_MASK)) 369 return NULL; 370 371 /* fixed params - element id extension */ 372 he_ops += WLAN_HEOP_FIXED_PARAM_LENGTH - 1; 373 len -= WLAN_HEOP_FIXED_PARAM_LENGTH - 1; 374 375 if (!len) 376 return NULL; 377 378 /* vht oper params */ 379 if (he_oper_params & WLAN_HEOP_VHTOP_PRESENT_MASK) { 380 if (len < WLAN_HEOP_VHTOP_LENGTH) 381 return NULL; 382 he_ops += WLAN_HEOP_VHTOP_LENGTH; 383 len -= WLAN_HEOP_VHTOP_LENGTH; 384 } 385 386 if (!len) 387 return NULL; 388 389 if (he_oper_params & WLAN_HEOP_CO_LOCATED_BSS_MASK) { 390 he_ops += WLAN_HEOP_CO_LOCATED_BSS_LENGTH; 391 len -= WLAN_HEOP_CO_LOCATED_BSS_LENGTH; 392 } 393 394 if (len < sizeof(struct he_oper_6g_param)) 395 return NULL; 396 397 return (struct he_oper_6g_param *)he_ops; 398 } 399 400 #ifdef WLAN_FEATURE_11BE 401 /* 402 * util_scan_is_out_of_band_leak_eht() - Check if eht beacon out of BSS BW 403 * @pdev: pointer to pdev. 404 * @scan_params: scan entry generated by beacon/probe rsp 405 * @band_mask: band mask of frequency beacon/probe rsp received 406 * @current_freq: frequency beacon/probe rsp received 407 * 408 * 1. If BSS BW <= 80MHz 409 * If Absolute value of (Current Channel Channel Center Frequency Segment 0) <= 410 * BSS BW/2 then eht beacon in BSS operating BW 411 * else eht beacon out of BSS operating BW 412 * 413 * 2. If BSS BW > 80MHz 414 * If Absolute value of (Current Channel Channel Center Frequency Segment 1) <= 415 * BSS BW/2 then eht beacon in BSS operating BW 416 * else eht beacon out of BSS operating BW 417 * 418 * Return: bool, whether eht beacon out of BSS operating BW 419 */ 420 static bool 421 util_scan_is_out_of_band_leak_eht(struct wlan_objmgr_pdev *pdev, 422 struct scan_cache_entry *scan_params, 423 uint8_t band_mask, 424 qdf_freq_t current_freq) 425 { 426 struct wlan_ie_ehtops *eht_ops; 427 uint8_t ch_width; 428 uint32_t bw; 429 uint32_t freq_diff; 430 qdf_freq_t freq_seg0; 431 qdf_freq_t freq_seg1; 432 433 eht_ops = (struct wlan_ie_ehtops *)util_scan_entry_ehtop(scan_params); 434 if (!util_scan_entry_ehtcap(scan_params) || !eht_ops) 435 return false; 436 437 if (!QDF_GET_BITS(eht_ops->ehtop_param, 438 EHTOP_INFO_PRESENT_IDX, EHTOP_INFO_PRESENT_BITS)) 439 return false; 440 441 ch_width = QDF_GET_BITS(eht_ops->control, 442 EHTOP_INFO_CHAN_WIDTH_IDX, 443 EHTOP_INFO_CHAN_WIDTH_BITS); 444 freq_seg0 = wlan_reg_chan_band_to_freq(pdev, eht_ops->ccfs0, 445 band_mask); 446 freq_seg1 = wlan_reg_chan_band_to_freq(pdev, eht_ops->ccfs1, 447 band_mask); 448 if (ch_width == WLAN_EHT_CHWIDTH_320) 449 bw = BW_320_MHZ; 450 else if (ch_width == WLAN_EHT_CHWIDTH_160) 451 bw = BW_160_MHZ; 452 else if (ch_width == WLAN_EHT_CHWIDTH_80) 453 bw = BW_80_MHZ; 454 else if (ch_width == WLAN_EHT_CHWIDTH_40) 455 bw = BW_40_MHZ; 456 else if (ch_width == WLAN_EHT_CHWIDTH_20) 457 bw = BW_20_MHZ; 458 else 459 bw = BW_20_MHZ; 460 461 if (bw <= BW_80_MHZ) 462 freq_diff = abs(freq_seg0 - current_freq); 463 else 464 freq_diff = abs(freq_seg1 - current_freq); 465 if (freq_diff <= bw / 2) 466 return false; 467 468 scm_debug("Leaked freq:%u ch width:%u freq0:%u freq1:%u", 469 current_freq, bw, freq_seg0, freq_seg1); 470 return true; 471 } 472 #else 473 static bool 474 util_scan_is_out_of_band_leak_eht(struct wlan_objmgr_pdev *pdev, 475 struct scan_cache_entry *scan_params, 476 uint8_t band_mask, 477 qdf_freq_t current_freq) 478 { 479 return false; 480 } 481 #endif 482 483 /* 484 * util_scan_is_out_of_band_leak_he() - Check if HE beacon out of BSS BW 485 * @pdev: pointer to pdev. 486 * @he_6g_params: HE 6 GHz params 487 * @band_mask: band mask of frequency beacon/probe rsp received 488 * @current_freq: frequency beacon/probe rsp received 489 * 490 * 1. If BSS BW <= 80MHz 491 * If Absolute value of (Current Channel Channel Center Frequency Segment 0) <= 492 * BSS BW/2 then HE beacon in BSS operating BW 493 * 494 * 2. If BSS BW is 160MHz 495 * If Absolute value of (Current Channel Channel Center Frequency Segment 1) <= 496 * BSS BW/2 then HE beacon in BSS operating BW 497 * 498 * 3. If BSS BW is 80+80MHz 499 * If absolute value of (Current Channel - Channel Center Frequency Segment 0) 500 * <= 40 or absolute value of (Current Channel - Channel Center Frequency 501 * Segment 1) <= 40, then HE beacon in BSS operating BW 502 * 503 * Return: bool, whether HE beacon out of BSS operating BW 504 */ 505 static bool 506 util_scan_is_out_of_band_leak_he(struct wlan_objmgr_pdev *pdev, 507 struct he_oper_6g_param *he_6g_params, 508 uint8_t band_mask, 509 qdf_freq_t current_freq) 510 { 511 uint8_t ch_width; 512 uint32_t bw; 513 uint32_t freq_diff; 514 qdf_freq_t freq_seg0; 515 qdf_freq_t freq_seg1; 516 517 ch_width = he_6g_params->width; 518 freq_seg0 = wlan_reg_chan_band_to_freq(pdev, 519 he_6g_params->chan_freq_seg0, 520 band_mask); 521 freq_seg1 = wlan_reg_chan_band_to_freq(pdev, 522 he_6g_params->chan_freq_seg1, 523 band_mask); 524 if (ch_width == WLAN_HE_6GHZ_CHWIDTH_160_80_80) 525 bw = BW_160_MHZ; 526 else if (ch_width == WLAN_HE_6GHZ_CHWIDTH_80) 527 bw = BW_80_MHZ; 528 else if (ch_width == WLAN_HE_6GHZ_CHWIDTH_40) 529 bw = BW_40_MHZ; 530 else if (ch_width == WLAN_HE_6GHZ_CHWIDTH_20) 531 bw = BW_20_MHZ; 532 else 533 bw = BW_20_MHZ; 534 535 if (bw <= BW_80_MHZ) { 536 freq_diff = abs(freq_seg0 - current_freq); 537 if (freq_diff <= bw / 2) 538 return false; 539 } else if (WLAN_IS_HE160(he_6g_params)) { 540 freq_diff = abs(freq_seg1 - current_freq); 541 if (freq_diff <= bw / 2) 542 return false; 543 } else if (WLAN_IS_HE80_80(he_6g_params)) { 544 freq_diff = abs(freq_seg0 - current_freq); 545 if (freq_diff <= BW_40_MHZ) 546 return false; 547 freq_diff = abs(freq_seg1 - current_freq); 548 if (freq_diff <= BW_40_MHZ) 549 return false; 550 } 551 552 scm_debug("Leaked freq:%u ch width:%u freq0:%u freq1:%u", 553 current_freq, bw, freq_seg0, freq_seg1); 554 555 return true; 556 } 557 558 /* 559 * util_scan_get_chan_from_he_6g_params() - Get chan info from 6 GHz param 560 * @pdev: pointer to pdev. 561 * @scan_params: scan entry generated by beacon/probe rsp 562 * @chan_freq: output parameter, primary freq from 6 GHz he params 563 * @is_6g_dup_bcon: output parameter, bool, if false, invalid 6g duplicated 564 beacon out of BSS operating BW or not duplicated beacon, can drop if 565 channel mismatch 566 * @band_mask: band mask of frequency beacon/probe rsp received 567 * @current_freq: frequency beacon/probe rsp received 568 * 569 * Return: QDF_STATUS 570 */ 571 static QDF_STATUS 572 util_scan_get_chan_from_he_6g_params(struct wlan_objmgr_pdev *pdev, 573 struct scan_cache_entry *scan_params, 574 qdf_freq_t *chan_freq, 575 bool *is_6g_dup_bcon, uint8_t band_mask, 576 qdf_freq_t current_freq) 577 { 578 struct he_oper_6g_param *he_6g_params; 579 uint8_t *he_ops; 580 struct wlan_scan_obj *scan_obj; 581 struct wlan_objmgr_psoc *psoc; 582 bool is_out_of_band_leak = true; 583 584 psoc = wlan_pdev_get_psoc(pdev); 585 if (!psoc) { 586 scm_err("psoc is NULL"); 587 return QDF_STATUS_E_INVAL; 588 } 589 590 scan_obj = wlan_psoc_get_scan_obj(psoc); 591 if (!scan_obj) { 592 scm_err("scan_obj is NULL"); 593 return QDF_STATUS_E_INVAL; 594 } 595 596 *is_6g_dup_bcon = false; 597 598 he_ops = util_scan_entry_heop(scan_params); 599 if (!util_scan_entry_hecap(scan_params) || !he_ops) 600 return QDF_STATUS_SUCCESS; 601 602 he_6g_params = util_scan_get_he_6g_params(he_ops); 603 if (!he_6g_params) 604 return QDF_STATUS_SUCCESS; 605 606 *chan_freq = wlan_reg_chan_band_to_freq(pdev, 607 he_6g_params->primary_channel, 608 band_mask); 609 if (scan_obj->drop_bcn_on_invalid_freq && 610 !wlan_reg_is_freq_enabled(pdev, *chan_freq, REG_BEST_PWR_MODE)) { 611 scm_debug_rl(QDF_MAC_ADDR_FMT": Drop as invalid channel %d freq %d in HE 6Ghz params", 612 QDF_MAC_ADDR_REF(scan_params->bssid.bytes), 613 he_6g_params->primary_channel, *chan_freq); 614 return QDF_STATUS_E_INVAL; 615 } 616 617 if (!he_6g_params->duplicate_beacon) { 618 *is_6g_dup_bcon = false; 619 return QDF_STATUS_SUCCESS; 620 } 621 is_out_of_band_leak = 622 util_scan_is_out_of_band_leak_eht(pdev, scan_params, band_mask, 623 current_freq); 624 if (is_out_of_band_leak) { 625 *is_6g_dup_bcon = false; 626 return QDF_STATUS_SUCCESS; 627 } 628 is_out_of_band_leak = 629 util_scan_is_out_of_band_leak_he(pdev, he_6g_params, band_mask, 630 current_freq); 631 if (is_out_of_band_leak) { 632 *is_6g_dup_bcon = false; 633 return QDF_STATUS_SUCCESS; 634 } 635 636 *is_6g_dup_bcon = true; 637 638 return QDF_STATUS_SUCCESS; 639 } 640 641 static enum wlan_phymode 642 util_scan_get_phymode_6g(struct wlan_objmgr_pdev *pdev, 643 struct scan_cache_entry *scan_params) 644 { 645 struct he_oper_6g_param *he_6g_params; 646 enum wlan_phymode phymode = WLAN_PHYMODE_11AXA_HE20; 647 uint8_t *he_ops; 648 uint8_t band_mask = BIT(REG_BAND_6G); 649 650 he_ops = util_scan_entry_heop(scan_params); 651 if (!util_scan_entry_hecap(scan_params) || !he_ops) 652 return phymode; 653 654 he_6g_params = util_scan_get_he_6g_params(he_ops); 655 if (!he_6g_params) 656 return phymode; 657 658 switch (he_6g_params->width) { 659 case WLAN_HE_6GHZ_CHWIDTH_20: 660 phymode = WLAN_PHYMODE_11AXA_HE20; 661 break; 662 case WLAN_HE_6GHZ_CHWIDTH_40: 663 phymode = WLAN_PHYMODE_11AXA_HE40; 664 break; 665 case WLAN_HE_6GHZ_CHWIDTH_80: 666 phymode = WLAN_PHYMODE_11AXA_HE80; 667 break; 668 case WLAN_HE_6GHZ_CHWIDTH_160_80_80: 669 if (WLAN_IS_HE80_80(he_6g_params)) 670 phymode = WLAN_PHYMODE_11AXA_HE80_80; 671 else if (WLAN_IS_HE160(he_6g_params)) 672 phymode = WLAN_PHYMODE_11AXA_HE160; 673 else 674 phymode = WLAN_PHYMODE_11AXA_HE80; 675 break; 676 default: 677 scm_err("Invalid he_6g_params width: %d", he_6g_params->width); 678 phymode = WLAN_PHYMODE_11AXA_HE20; 679 break; 680 } 681 682 if (he_6g_params->chan_freq_seg0) 683 scan_params->channel.cfreq0 = 684 wlan_reg_chan_band_to_freq(pdev, 685 he_6g_params->chan_freq_seg0, 686 band_mask); 687 if (he_6g_params->chan_freq_seg1) 688 scan_params->channel.cfreq1 = 689 wlan_reg_chan_band_to_freq(pdev, 690 he_6g_params->chan_freq_seg1, 691 band_mask); 692 693 phymode = util_scan_get_phymode_11be(pdev, scan_params, 694 phymode, band_mask); 695 696 return phymode; 697 } 698 699 uint8_t 700 util_scan_get_6g_oper_channel(uint8_t *he_op_ie) 701 { 702 struct he_oper_6g_param *he_6g_params; 703 704 he_6g_params = util_scan_get_he_6g_params(he_op_ie); 705 if (!he_6g_params) 706 return 0; 707 708 return he_6g_params->primary_channel; 709 } 710 711 #else 712 static QDF_STATUS 713 util_scan_get_chan_from_he_6g_params(struct wlan_objmgr_pdev *pdev, 714 struct scan_cache_entry *scan_params, 715 qdf_freq_t *chan_freq, 716 bool *is_6g_dup_bcon, 717 uint8_t band_mask, 718 qdf_freq_t current_freq) 719 { 720 return QDF_STATUS_SUCCESS; 721 } 722 static inline enum wlan_phymode 723 util_scan_get_phymode_6g(struct wlan_objmgr_pdev *pdev, 724 struct scan_cache_entry *scan_params) 725 { 726 return WLAN_PHYMODE_AUTO; 727 } 728 #endif 729 730 static inline 731 uint32_t util_scan_sec_chan_freq_from_htinfo(struct wlan_ie_htinfo_cmn *htinfo, 732 uint32_t primary_chan_freq) 733 { 734 if (htinfo->hi_extchoff == WLAN_HTINFO_EXTOFFSET_ABOVE) 735 return primary_chan_freq + WLAN_CHAN_SPACING_20MHZ; 736 else if (htinfo->hi_extchoff == WLAN_HTINFO_EXTOFFSET_BELOW) 737 return primary_chan_freq - WLAN_CHAN_SPACING_20MHZ; 738 739 return 0; 740 } 741 742 static enum wlan_phymode 743 util_scan_get_phymode_5g(struct wlan_objmgr_pdev *pdev, 744 struct scan_cache_entry *scan_params) 745 { 746 enum wlan_phymode phymode = WLAN_PHYMODE_AUTO; 747 uint16_t ht_cap = 0; 748 struct htcap_cmn_ie *htcap; 749 struct wlan_ie_htinfo_cmn *htinfo; 750 struct wlan_ie_vhtop *vhtop; 751 uint8_t band_mask = BIT(REG_BAND_5G); 752 753 htcap = (struct htcap_cmn_ie *) 754 util_scan_entry_htcap(scan_params); 755 htinfo = (struct wlan_ie_htinfo_cmn *) 756 util_scan_entry_htinfo(scan_params); 757 vhtop = (struct wlan_ie_vhtop *) 758 util_scan_entry_vhtop(scan_params); 759 760 if (!(htcap && htinfo)) 761 return WLAN_PHYMODE_11A; 762 763 if (htcap) 764 ht_cap = le16toh(htcap->hc_cap); 765 766 if ((ht_cap & WLAN_HTCAP_C_CHWIDTH40) && 767 (htinfo->hi_extchoff == WLAN_HTINFO_EXTOFFSET_ABOVE || 768 htinfo->hi_extchoff == WLAN_HTINFO_EXTOFFSET_BELOW)) 769 phymode = WLAN_PHYMODE_11NA_HT40; 770 else 771 phymode = WLAN_PHYMODE_11NA_HT20; 772 773 scan_params->channel.cfreq0 = 774 util_scan_sec_chan_freq_from_htinfo(htinfo, 775 scan_params->channel.chan_freq); 776 777 if (util_scan_entry_vhtcap(scan_params) && vhtop) { 778 switch (vhtop->vht_op_chwidth) { 779 case WLAN_VHTOP_CHWIDTH_2040: 780 if (phymode == WLAN_PHYMODE_11NA_HT40) 781 phymode = WLAN_PHYMODE_11AC_VHT40; 782 else 783 phymode = WLAN_PHYMODE_11AC_VHT20; 784 break; 785 case WLAN_VHTOP_CHWIDTH_80: 786 if (WLAN_IS_REVSIG_VHT80_80(vhtop)) 787 phymode = WLAN_PHYMODE_11AC_VHT80_80; 788 else if (WLAN_IS_REVSIG_VHT160(vhtop)) 789 phymode = WLAN_PHYMODE_11AC_VHT160; 790 else 791 phymode = WLAN_PHYMODE_11AC_VHT80; 792 break; 793 case WLAN_VHTOP_CHWIDTH_160: 794 phymode = WLAN_PHYMODE_11AC_VHT160; 795 break; 796 case WLAN_VHTOP_CHWIDTH_80_80: 797 phymode = WLAN_PHYMODE_11AC_VHT80_80; 798 break; 799 default: 800 scm_debug("bad channel: %d", 801 vhtop->vht_op_chwidth); 802 phymode = WLAN_PHYMODE_11AC_VHT20; 803 break; 804 } 805 if (vhtop->vht_op_ch_freq_seg1) 806 scan_params->channel.cfreq0 = 807 wlan_reg_chan_band_to_freq(pdev, 808 vhtop->vht_op_ch_freq_seg1, 809 band_mask); 810 if (vhtop->vht_op_ch_freq_seg2) 811 scan_params->channel.cfreq1 = 812 wlan_reg_chan_band_to_freq(pdev, 813 vhtop->vht_op_ch_freq_seg2, 814 band_mask); 815 } 816 817 if (!util_scan_entry_hecap(scan_params)) 818 return phymode; 819 820 /* for 5Ghz Check for HE, only if VHT cap and HE cap are present */ 821 if (!IS_WLAN_PHYMODE_VHT(phymode)) 822 return phymode; 823 824 switch (phymode) { 825 case WLAN_PHYMODE_11AC_VHT20: 826 phymode = WLAN_PHYMODE_11AXA_HE20; 827 break; 828 case WLAN_PHYMODE_11AC_VHT40: 829 phymode = WLAN_PHYMODE_11AXA_HE40; 830 break; 831 case WLAN_PHYMODE_11AC_VHT80: 832 phymode = WLAN_PHYMODE_11AXA_HE80; 833 break; 834 case WLAN_PHYMODE_11AC_VHT160: 835 phymode = WLAN_PHYMODE_11AXA_HE160; 836 break; 837 case WLAN_PHYMODE_11AC_VHT80_80: 838 phymode = WLAN_PHYMODE_11AXA_HE80_80; 839 break; 840 default: 841 phymode = WLAN_PHYMODE_11AXA_HE20; 842 break; 843 } 844 845 phymode = util_scan_get_phymode_11be(pdev, scan_params, 846 phymode, band_mask); 847 848 return phymode; 849 } 850 851 #ifdef WLAN_FEATURE_11BE 852 static enum wlan_phymode 853 util_scan_get_phymode_2g_11be(struct scan_cache_entry *scan_params, 854 enum wlan_phymode phymode) 855 { 856 if (!util_scan_entry_ehtcap(scan_params)) 857 return phymode; 858 859 if (phymode == WLAN_PHYMODE_11AXG_HE40PLUS) 860 phymode = WLAN_PHYMODE_11BEG_EHT40PLUS; 861 else if (phymode == WLAN_PHYMODE_11AXG_HE40MINUS) 862 phymode = WLAN_PHYMODE_11BEG_EHT40MINUS; 863 else 864 phymode = WLAN_PHYMODE_11BEG_EHT20; 865 866 return phymode; 867 } 868 #else 869 static enum wlan_phymode 870 util_scan_get_phymode_2g_11be(struct scan_cache_entry *scan_params, 871 enum wlan_phymode phymode) 872 { 873 return phymode; 874 } 875 #endif 876 877 static enum wlan_phymode 878 util_scan_get_phymode_2g(struct scan_cache_entry *scan_params) 879 { 880 enum wlan_phymode phymode = WLAN_PHYMODE_AUTO; 881 uint16_t ht_cap = 0; 882 struct htcap_cmn_ie *htcap; 883 struct wlan_ie_htinfo_cmn *htinfo; 884 struct wlan_ie_vhtop *vhtop; 885 886 htcap = (struct htcap_cmn_ie *) 887 util_scan_entry_htcap(scan_params); 888 htinfo = (struct wlan_ie_htinfo_cmn *) 889 util_scan_entry_htinfo(scan_params); 890 vhtop = (struct wlan_ie_vhtop *) 891 util_scan_entry_vhtop(scan_params); 892 893 if (htcap) 894 ht_cap = le16toh(htcap->hc_cap); 895 896 if (htcap && htinfo) { 897 if ((ht_cap & WLAN_HTCAP_C_CHWIDTH40) && 898 (htinfo->hi_extchoff == WLAN_HTINFO_EXTOFFSET_ABOVE)) 899 phymode = WLAN_PHYMODE_11NG_HT40PLUS; 900 else if ((ht_cap & WLAN_HTCAP_C_CHWIDTH40) && 901 (htinfo->hi_extchoff == WLAN_HTINFO_EXTOFFSET_BELOW)) 902 phymode = WLAN_PHYMODE_11NG_HT40MINUS; 903 else 904 phymode = WLAN_PHYMODE_11NG_HT20; 905 } else if (util_scan_entry_xrates(scan_params)) { 906 /* only 11G stations will have more than 8 rates */ 907 phymode = WLAN_PHYMODE_11G; 908 } else { 909 /* Some mischievous g-only APs do not set extended rates */ 910 if (util_scan_entry_rates(scan_params)) { 911 if (util_is_pureg_rate(&scan_params->ie_list.rates[2], 912 scan_params->ie_list.rates[1])) 913 phymode = WLAN_PHYMODE_11G; 914 else 915 phymode = WLAN_PHYMODE_11B; 916 } else { 917 phymode = WLAN_PHYMODE_11B; 918 } 919 } 920 921 /* Check for VHT only if HT cap is present */ 922 if (!IS_WLAN_PHYMODE_HT(phymode)) 923 return phymode; 924 925 scan_params->channel.cfreq0 = 926 util_scan_sec_chan_freq_from_htinfo(htinfo, 927 scan_params->channel.chan_freq); 928 929 if (util_scan_entry_vhtcap(scan_params) && vhtop) { 930 switch (vhtop->vht_op_chwidth) { 931 case WLAN_VHTOP_CHWIDTH_2040: 932 if (phymode == WLAN_PHYMODE_11NG_HT40PLUS) 933 phymode = WLAN_PHYMODE_11AC_VHT40PLUS_2G; 934 else if (phymode == WLAN_PHYMODE_11NG_HT40MINUS) 935 phymode = WLAN_PHYMODE_11AC_VHT40MINUS_2G; 936 else 937 phymode = WLAN_PHYMODE_11AC_VHT20_2G; 938 939 break; 940 default: 941 scm_info("bad vht_op_chwidth: %d", 942 vhtop->vht_op_chwidth); 943 phymode = WLAN_PHYMODE_11AC_VHT20_2G; 944 break; 945 } 946 } 947 948 if (!util_scan_entry_hecap(scan_params)) 949 return phymode; 950 951 if (phymode == WLAN_PHYMODE_11AC_VHT40PLUS_2G || 952 phymode == WLAN_PHYMODE_11NG_HT40PLUS) 953 phymode = WLAN_PHYMODE_11AXG_HE40PLUS; 954 else if (phymode == WLAN_PHYMODE_11AC_VHT40MINUS_2G || 955 phymode == WLAN_PHYMODE_11NG_HT40MINUS) 956 phymode = WLAN_PHYMODE_11AXG_HE40MINUS; 957 else 958 phymode = WLAN_PHYMODE_11AXG_HE20; 959 960 phymode = util_scan_get_phymode_2g_11be(scan_params, phymode); 961 962 return phymode; 963 } 964 965 static enum wlan_phymode 966 util_scan_get_phymode(struct wlan_objmgr_pdev *pdev, 967 struct scan_cache_entry *scan_params) 968 { 969 if (WLAN_REG_IS_24GHZ_CH_FREQ(scan_params->channel.chan_freq)) 970 return util_scan_get_phymode_2g(scan_params); 971 else if (WLAN_REG_IS_6GHZ_CHAN_FREQ(scan_params->channel.chan_freq)) 972 return util_scan_get_phymode_6g(pdev, scan_params); 973 else 974 return util_scan_get_phymode_5g(pdev, scan_params); 975 } 976 977 static QDF_STATUS 978 util_scan_parse_chan_switch_wrapper_ie(struct scan_cache_entry *scan_params, 979 struct ie_header *sub_ie, qdf_size_t sub_ie_len) 980 { 981 /* Walk through to check nothing is malformed */ 982 while (sub_ie_len >= sizeof(struct ie_header)) { 983 /* At least one more header is present */ 984 sub_ie_len -= sizeof(struct ie_header); 985 986 if (sub_ie->ie_len == 0) { 987 sub_ie += 1; 988 continue; 989 } 990 if (sub_ie_len < sub_ie->ie_len) { 991 scm_debug_rl(QDF_MAC_ADDR_FMT": Incomplete corrupted IE:%x", 992 QDF_MAC_ADDR_REF(scan_params->bssid.bytes), 993 WLAN_ELEMID_CHAN_SWITCH_WRAP); 994 return QDF_STATUS_E_INVAL; 995 } 996 switch (sub_ie->ie_id) { 997 case WLAN_ELEMID_COUNTRY: 998 if (sub_ie->ie_len < WLAN_COUNTRY_IE_MIN_LEN) 999 return QDF_STATUS_E_INVAL; 1000 scan_params->ie_list.country = (uint8_t *)sub_ie; 1001 break; 1002 case WLAN_ELEMID_WIDE_BAND_CHAN_SWITCH: 1003 if (sub_ie->ie_len < WLAN_WIDE_BW_CHAN_SWITCH_IE_LEN) 1004 return QDF_STATUS_E_INVAL; 1005 scan_params->ie_list.widebw = (uint8_t *)sub_ie; 1006 break; 1007 case WLAN_ELEMID_VHT_TX_PWR_ENVLP: 1008 if (sub_ie->ie_len > WLAN_TPE_IE_MAX_LEN) 1009 return QDF_STATUS_E_INVAL; 1010 scan_params->ie_list.txpwrenvlp = (uint8_t *)sub_ie; 1011 break; 1012 #ifdef WLAN_FEATURE_11BE 1013 case WLAN_EXTN_ELEMID_BW_IND: 1014 if (sub_ie->ie_len > WLAN_BW_IND_IE_MAX_LEN) 1015 return QDF_STATUS_E_INVAL; 1016 scan_params->ie_list.bw_ind = (uint8_t *)sub_ie; 1017 break; 1018 #endif 1019 } 1020 /* Consume sub info element */ 1021 sub_ie_len -= sub_ie->ie_len; 1022 /* go to next Sub IE */ 1023 sub_ie = (struct ie_header *) 1024 (((uint8_t *) sub_ie) + 1025 sizeof(struct ie_header) + sub_ie->ie_len); 1026 } 1027 1028 return QDF_STATUS_SUCCESS; 1029 } 1030 1031 bool 1032 util_scan_is_hidden_ssid(struct ie_ssid *ssid) 1033 { 1034 uint8_t i; 1035 1036 /* 1037 * We flag this as Hidden SSID if the Length is 0 1038 * of the SSID only contains 0's 1039 */ 1040 if (!ssid || !ssid->ssid_len) 1041 return true; 1042 1043 for (i = 0; i < ssid->ssid_len; i++) 1044 if (ssid->ssid[i] != 0) 1045 return false; 1046 1047 /* All 0's */ 1048 return true; 1049 } 1050 1051 #ifdef WLAN_FEATURE_11BE_MLO 1052 static void util_scan_update_rnr_mld(struct rnr_bss_info *rnr, uint8_t *data, 1053 uint8_t tbtt_info_length) 1054 { 1055 bool mld_info_present = false; 1056 1057 switch (tbtt_info_length) { 1058 case TBTT_NEIGHBOR_AP_BSSID_S_SSID_BSS_PARAM_20MHZ_PSD_MLD_PARAM: 1059 qdf_mem_copy(&rnr->mld_info, &data[13], 1060 sizeof(struct rnr_mld_info)); 1061 mld_info_present = true; 1062 break; 1063 }; 1064 1065 rnr->mld_info_valid = mld_info_present; 1066 } 1067 #else 1068 static inline void 1069 util_scan_update_rnr_mld(struct rnr_bss_info *rnr, uint8_t *data, 1070 uint8_t tbtt_info_length) 1071 { 1072 } 1073 #endif 1074 1075 static QDF_STATUS 1076 util_scan_update_rnr(struct rnr_bss_info *rnr, 1077 struct neighbor_ap_info_field *ap_info, 1078 uint8_t *data) 1079 { 1080 uint8_t tbtt_info_length; 1081 1082 tbtt_info_length = ap_info->tbtt_header.tbtt_info_length; 1083 1084 /* 1085 * Max TBTT sub-element length in RNR IE is 255 bytes and AP can send 1086 * data above defined length and the bytes in excess to this length 1087 * shall be treated as reserved. 1088 * 1089 * Limit the TBTT sub-element read operation to current supported 1090 * length i.e TBTT_NEIGHBOR_AP_PARAM_MAX 1091 */ 1092 if (tbtt_info_length > TBTT_NEIGHBOR_AP_PARAM_MAX) 1093 tbtt_info_length = TBTT_NEIGHBOR_AP_PARAM_MAX; 1094 1095 switch (tbtt_info_length) { 1096 case TBTT_NEIGHBOR_AP_OFFSET_ONLY: 1097 /* Dont store it skip*/ 1098 break; 1099 1100 case TBTT_NEIGHBOR_AP_BSS_PARAM: 1101 /* Dont store it skip*/ 1102 break; 1103 1104 case TBTT_NEIGHBOR_AP_S_SSID_BSS_PARAM: 1105 rnr->bss_params = data[5]; 1106 fallthrough; 1107 case TBTT_NEIGHBOR_AP_SHORTSSID: 1108 rnr->channel_number = ap_info->channel_number; 1109 rnr->operating_class = ap_info->operting_class; 1110 qdf_mem_copy(&rnr->short_ssid, &data[1], SHORT_SSID_LEN); 1111 break; 1112 1113 case TBTT_NEIGHBOR_AP_BSSID_BSS_PARAM_20MHZ_PSD: 1114 rnr->psd_20mhz = data[8]; 1115 fallthrough; 1116 case TBTT_NEIGHBOR_AP_BSSID_BSS_PARAM: 1117 rnr->bss_params = data[7]; 1118 fallthrough; 1119 case TBTT_NEIGHBOR_AP_BSSID: 1120 rnr->channel_number = ap_info->channel_number; 1121 rnr->operating_class = ap_info->operting_class; 1122 qdf_mem_copy(&rnr->bssid, &data[1], QDF_MAC_ADDR_SIZE); 1123 break; 1124 1125 case TBTT_NEIGHBOR_AP_BSSID_S_SSID_BSS_PARAM_20MHZ_PSD_MLD_PARAM: 1126 util_scan_update_rnr_mld(rnr, data, tbtt_info_length); 1127 fallthrough; 1128 case TBTT_NEIGHBOR_AP_BSSID_S_SSID_BSS_PARAM_20MHZ_PSD: 1129 rnr->psd_20mhz = data[12]; 1130 fallthrough; 1131 case TBTT_NEIGHBOR_AP_BSSID_S_SSID_BSS_PARAM: 1132 rnr->bss_params = data[11]; 1133 fallthrough; 1134 case TBTT_NEIGHBOR_AP_BSSSID_S_SSID: 1135 rnr->channel_number = ap_info->channel_number; 1136 rnr->operating_class = ap_info->operting_class; 1137 qdf_mem_copy(&rnr->bssid, &data[1], QDF_MAC_ADDR_SIZE); 1138 qdf_mem_copy(&rnr->short_ssid, &data[7], SHORT_SSID_LEN); 1139 break; 1140 1141 default: 1142 scm_debug("Wrong fieldtype"); 1143 } 1144 1145 return QDF_STATUS_SUCCESS; 1146 } 1147 1148 static QDF_STATUS 1149 util_scan_parse_rnr_ie(struct scan_cache_entry *scan_entry, 1150 struct ie_header *ie) 1151 { 1152 uint32_t rnr_ie_len; 1153 uint16_t tbtt_count, tbtt_length, i, fieldtype, idx; 1154 uint8_t *data; 1155 struct neighbor_ap_info_field *neighbor_ap_info; 1156 1157 rnr_ie_len = ie->ie_len; 1158 data = (uint8_t *)ie + sizeof(struct ie_header); 1159 idx = scan_entry->rnr.count; 1160 1161 while (data < ((uint8_t *)ie + rnr_ie_len + 2)) { 1162 neighbor_ap_info = (struct neighbor_ap_info_field *)data; 1163 tbtt_count = neighbor_ap_info->tbtt_header.tbtt_info_count; 1164 tbtt_length = neighbor_ap_info->tbtt_header.tbtt_info_length; 1165 fieldtype = neighbor_ap_info->tbtt_header.tbbt_info_fieldtype; 1166 scm_debug("chan %d, opclass %d tbtt_cnt %d, tbtt_len %d, fieldtype %d", 1167 neighbor_ap_info->channel_number, 1168 neighbor_ap_info->operting_class, 1169 tbtt_count, tbtt_length, fieldtype); 1170 data += sizeof(struct neighbor_ap_info_field); 1171 1172 if (tbtt_count > TBTT_INFO_COUNT) 1173 break; 1174 1175 for (i = 0; i < (tbtt_count + 1) && 1176 data < ((uint8_t *)ie + rnr_ie_len + 2); i++) { 1177 if ((i < MAX_RNR_BSS) && (idx < MAX_RNR_BSS)) 1178 util_scan_update_rnr( 1179 &scan_entry->rnr.bss_info[idx++], 1180 neighbor_ap_info, 1181 data); 1182 data += tbtt_length; 1183 } 1184 } 1185 1186 scan_entry->rnr.count = idx; 1187 1188 return QDF_STATUS_SUCCESS; 1189 } 1190 1191 #ifdef WLAN_FEATURE_11BE_MLO 1192 static void 1193 util_scan_parse_t2lm_ie(struct scan_cache_entry *scan_params, 1194 struct extn_ie_header *extn_ie) 1195 { 1196 uint8_t t2lm_idx = 0; 1197 1198 if (extn_ie->ie_extn_id == WLAN_EXTN_ELEMID_T2LM) 1199 for (t2lm_idx = 0; t2lm_idx < WLAN_MAX_T2LM_IE; t2lm_idx++) { 1200 if (!scan_params->ie_list.t2lm[t2lm_idx]) { 1201 scan_params->ie_list.t2lm[t2lm_idx] = 1202 (uint8_t *)extn_ie; 1203 return; 1204 } 1205 } 1206 } 1207 #endif 1208 1209 #ifdef WLAN_FEATURE_11BE 1210 #ifdef WLAN_FEATURE_11BE_MLO 1211 static void util_scan_parse_ml_ie(struct scan_cache_entry *scan_params, 1212 struct extn_ie_header *extn_ie) 1213 { 1214 uint8_t *ml_ie; 1215 uint32_t ml_ie_len; 1216 enum wlan_ml_variant ml_variant; 1217 QDF_STATUS ret; 1218 1219 if (extn_ie->ie_extn_id != WLAN_EXTN_ELEMID_MULTI_LINK) 1220 return; 1221 1222 ml_ie = (uint8_t *)extn_ie; 1223 ml_ie_len = ml_ie[TAG_LEN_POS]; 1224 1225 /* Adding the size of IE header to ML IE length */ 1226 ml_ie_len += sizeof(struct ie_header); 1227 ret = util_get_mlie_variant(ml_ie, ml_ie_len, (int *)&ml_variant); 1228 if (ret) { 1229 scm_err("Unable to get ml variant"); 1230 return; 1231 } 1232 1233 switch (ml_variant) { 1234 case WLAN_ML_VARIANT_BASIC: 1235 scan_params->ie_list.multi_link_bv = (uint8_t *)extn_ie; 1236 break; 1237 case WLAN_ML_VARIANT_RECONFIG: 1238 scan_params->ie_list.multi_link_rv = (uint8_t *)extn_ie; 1239 break; 1240 default: 1241 break; 1242 } 1243 } 1244 #else 1245 static void util_scan_parse_ml_ie(struct scan_cache_entry *scan_params, 1246 struct extn_ie_header *extn_ie) 1247 { 1248 } 1249 #endif 1250 static void util_scan_parse_eht_ie(struct scan_cache_entry *scan_params, 1251 struct extn_ie_header *extn_ie) 1252 { 1253 switch (extn_ie->ie_extn_id) { 1254 case WLAN_EXTN_ELEMID_EHTCAP: 1255 scan_params->ie_list.ehtcap = (uint8_t *)extn_ie; 1256 break; 1257 case WLAN_EXTN_ELEMID_EHTOP: 1258 scan_params->ie_list.ehtop = (uint8_t *)extn_ie; 1259 break; 1260 default: 1261 break; 1262 } 1263 1264 util_scan_parse_ml_ie(scan_params, extn_ie); 1265 util_scan_parse_t2lm_ie(scan_params, extn_ie); 1266 } 1267 #else 1268 static void util_scan_parse_eht_ie(struct scan_cache_entry *scan_params, 1269 struct extn_ie_header *extn_ie) 1270 { 1271 } 1272 #endif 1273 1274 static QDF_STATUS 1275 util_scan_parse_extn_ie(struct scan_cache_entry *scan_params, 1276 struct ie_header *ie) 1277 { 1278 struct extn_ie_header *extn_ie = (struct extn_ie_header *) ie; 1279 1280 switch (extn_ie->ie_extn_id) { 1281 case WLAN_EXTN_ELEMID_MAX_CHAN_SWITCH_TIME: 1282 if (extn_ie->ie_len != WLAN_MAX_CHAN_SWITCH_TIME_IE_LEN) 1283 return QDF_STATUS_E_INVAL; 1284 scan_params->ie_list.mcst = (uint8_t *)ie; 1285 break; 1286 case WLAN_EXTN_ELEMID_SRP: 1287 if (extn_ie->ie_len > WLAN_MAX_SRP_IE_LEN) 1288 return QDF_STATUS_E_INVAL; 1289 scan_params->ie_list.srp = (uint8_t *)ie; 1290 break; 1291 case WLAN_EXTN_ELEMID_HECAP: 1292 if ((extn_ie->ie_len < WLAN_MIN_HECAP_IE_LEN) || 1293 (extn_ie->ie_len > WLAN_MAX_HECAP_IE_LEN)) 1294 return QDF_STATUS_E_INVAL; 1295 scan_params->ie_list.hecap = (uint8_t *)ie; 1296 break; 1297 case WLAN_EXTN_ELEMID_HEOP: 1298 if (extn_ie->ie_len > WLAN_MAX_HEOP_IE_LEN) 1299 return QDF_STATUS_E_INVAL; 1300 scan_params->ie_list.heop = (uint8_t *)ie; 1301 break; 1302 case WLAN_EXTN_ELEMID_ESP: 1303 scan_params->ie_list.esp = (uint8_t *)ie; 1304 break; 1305 case WLAN_EXTN_ELEMID_MUEDCA: 1306 if (extn_ie->ie_len > WLAN_MAX_MUEDCA_IE_LEN) 1307 return QDF_STATUS_E_INVAL; 1308 scan_params->ie_list.muedca = (uint8_t *)ie; 1309 break; 1310 case WLAN_EXTN_ELEMID_HE_6G_CAP: 1311 if (extn_ie->ie_len > WLAN_MAX_HE_6G_CAP_IE_LEN) 1312 return QDF_STATUS_E_INVAL; 1313 scan_params->ie_list.hecap_6g = (uint8_t *)ie; 1314 break; 1315 default: 1316 break; 1317 } 1318 util_scan_parse_eht_ie(scan_params, extn_ie); 1319 1320 return QDF_STATUS_SUCCESS; 1321 } 1322 1323 static QDF_STATUS 1324 util_scan_parse_vendor_ie(struct scan_cache_entry *scan_params, 1325 struct ie_header *ie) 1326 { 1327 if (!scan_params->ie_list.vendor) 1328 scan_params->ie_list.vendor = (uint8_t *)ie; 1329 1330 if (is_wpa_oui((uint8_t *)ie)) { 1331 scan_params->ie_list.wpa = (uint8_t *)ie; 1332 } else if (is_wps_oui((uint8_t *)ie)) { 1333 scan_params->ie_list.wps = (uint8_t *)ie; 1334 /* WCN IE should be a subset of WPS IE */ 1335 if (is_wcn_oui((uint8_t *)ie)) 1336 scan_params->ie_list.wcn = (uint8_t *)ie; 1337 } else if (is_wme_param((uint8_t *)ie)) { 1338 if (ie->ie_len > WLAN_VENDOR_WME_IE_LEN) 1339 return QDF_STATUS_E_INVAL; 1340 1341 scan_params->ie_list.wmeparam = (uint8_t *)ie; 1342 } else if (is_wme_info((uint8_t *)ie)) { 1343 scan_params->ie_list.wmeinfo = (uint8_t *)ie; 1344 } else if (is_atheros_oui((uint8_t *)ie)) { 1345 if (ie->ie_len > WLAN_VENDOR_ATHCAPS_IE_LEN) 1346 return QDF_STATUS_E_INVAL; 1347 1348 scan_params->ie_list.athcaps = (uint8_t *)ie; 1349 } else if (is_atheros_extcap_oui((uint8_t *)ie)) { 1350 if (ie->ie_len > WLAN_VENDOR_ATH_EXTCAP_IE_LEN) 1351 return QDF_STATUS_E_INVAL; 1352 1353 scan_params->ie_list.athextcaps = (uint8_t *)ie; 1354 } else if (is_sfa_oui((uint8_t *)ie)) { 1355 if (ie->ie_len > WLAN_VENDOR_SFA_IE_LEN) 1356 return QDF_STATUS_E_INVAL; 1357 1358 scan_params->ie_list.sfa = (uint8_t *)ie; 1359 } else if (is_p2p_oui((uint8_t *)ie)) { 1360 scan_params->ie_list.p2p = (uint8_t *)ie; 1361 } else if (is_qca_son_oui((uint8_t *)ie, 1362 QCA_OUI_WHC_AP_INFO_SUBTYPE)) { 1363 1364 scan_params->ie_list.sonadv = (uint8_t *)ie; 1365 } else if (is_ht_cap((uint8_t *)ie)) { 1366 /* we only care if there isn't already an HT IE (ANA) */ 1367 if (!scan_params->ie_list.htcap) { 1368 if (ie->ie_len != (WLAN_VENDOR_HT_IE_OFFSET_LEN + 1369 sizeof(struct htcap_cmn_ie))) 1370 return QDF_STATUS_E_INVAL; 1371 scan_params->ie_list.htcap = 1372 (uint8_t *)&(((struct wlan_vendor_ie_htcap *)ie)->ie); 1373 } 1374 } else if (is_ht_info((uint8_t *)ie)) { 1375 /* we only care if there isn't already an HT IE (ANA) */ 1376 if (!scan_params->ie_list.htinfo) { 1377 if (ie->ie_len != WLAN_VENDOR_HT_IE_OFFSET_LEN + 1378 sizeof(struct wlan_ie_htinfo_cmn)) 1379 return QDF_STATUS_E_INVAL; 1380 scan_params->ie_list.htinfo = 1381 (uint8_t *)&(((struct wlan_vendor_ie_htinfo *) 1382 ie)->hi_ie); 1383 } 1384 } else if (is_interop_vht((uint8_t *)ie) && 1385 !(scan_params->ie_list.vhtcap)) { 1386 uint8_t *vendor_ie = (uint8_t *)(ie); 1387 1388 if (ie->ie_len < ((WLAN_VENDOR_VHTCAP_IE_OFFSET + 1389 sizeof(struct wlan_ie_vhtcaps)) - 1390 sizeof(struct ie_header))) 1391 return QDF_STATUS_E_INVAL; 1392 vendor_ie = ((uint8_t *)(ie)) + WLAN_VENDOR_VHTCAP_IE_OFFSET; 1393 if (vendor_ie[1] != (sizeof(struct wlan_ie_vhtcaps)) - 1394 sizeof(struct ie_header)) 1395 return QDF_STATUS_E_INVAL; 1396 /* location where Interop Vht Cap IE and VHT OP IE Present */ 1397 scan_params->ie_list.vhtcap = (((uint8_t *)(ie)) + 1398 WLAN_VENDOR_VHTCAP_IE_OFFSET); 1399 if (ie->ie_len > ((WLAN_VENDOR_VHTCAP_IE_OFFSET + 1400 sizeof(struct wlan_ie_vhtcaps)) - 1401 sizeof(struct ie_header))) { 1402 if (ie->ie_len < ((WLAN_VENDOR_VHTOP_IE_OFFSET + 1403 sizeof(struct wlan_ie_vhtop)) - 1404 sizeof(struct ie_header))) 1405 return QDF_STATUS_E_INVAL; 1406 vendor_ie = ((uint8_t *)(ie)) + 1407 WLAN_VENDOR_VHTOP_IE_OFFSET; 1408 if (vendor_ie[1] != (sizeof(struct wlan_ie_vhtop) - 1409 sizeof(struct ie_header))) 1410 return QDF_STATUS_E_INVAL; 1411 scan_params->ie_list.vhtop = (((uint8_t *)(ie)) + 1412 WLAN_VENDOR_VHTOP_IE_OFFSET); 1413 } 1414 } else if (is_bwnss_oui((uint8_t *)ie)) { 1415 /* 1416 * Bandwidth-NSS map has sub-type & version. 1417 * hence copy data just after version byte 1418 */ 1419 if (ie->ie_len > WLAN_BWNSS_MAP_OFFSET) 1420 scan_params->ie_list.bwnss_map = (((uint8_t *)ie) + 8); 1421 } else if (is_mbo_oce_oui((uint8_t *)ie)) { 1422 scan_params->ie_list.mbo_oce = (uint8_t *)ie; 1423 } else if (is_extender_oui((uint8_t *)ie)) { 1424 scan_params->ie_list.extender = (uint8_t *)ie; 1425 } else if (is_adaptive_11r_oui((uint8_t *)ie)) { 1426 if ((ie->ie_len < OUI_LENGTH) || 1427 (ie->ie_len > MAX_ADAPTIVE_11R_IE_LEN)) 1428 return QDF_STATUS_E_INVAL; 1429 1430 scan_params->ie_list.adaptive_11r = (uint8_t *)ie + 1431 sizeof(struct ie_header); 1432 } else if (is_sae_single_pmk_oui((uint8_t *)ie)) { 1433 if ((ie->ie_len < OUI_LENGTH) || 1434 (ie->ie_len > MAX_SAE_SINGLE_PMK_IE_LEN)) { 1435 scm_debug("Invalid sae single pmk OUI"); 1436 return QDF_STATUS_E_INVAL; 1437 } 1438 scan_params->ie_list.single_pmk = (uint8_t *)ie + 1439 sizeof(struct ie_header); 1440 } else if (is_qcn_oui((uint8_t *)ie)) { 1441 scan_params->ie_list.qcn = (uint8_t *)ie; 1442 } 1443 1444 return QDF_STATUS_SUCCESS; 1445 } 1446 1447 static QDF_STATUS 1448 util_scan_populate_bcn_ie_list(struct wlan_objmgr_pdev *pdev, 1449 struct scan_cache_entry *scan_params, 1450 qdf_freq_t *chan_freq, uint8_t band_mask) 1451 { 1452 struct ie_header *ie, *sub_ie; 1453 uint32_t ie_len, sub_ie_len; 1454 QDF_STATUS status; 1455 uint8_t chan_idx; 1456 struct wlan_scan_obj *scan_obj; 1457 struct wlan_objmgr_psoc *psoc; 1458 uint8_t tpe_idx = 0; 1459 1460 psoc = wlan_pdev_get_psoc(pdev); 1461 if (!psoc) { 1462 scm_err("psoc is NULL"); 1463 return QDF_STATUS_E_INVAL; 1464 } 1465 1466 scan_obj = wlan_psoc_get_scan_obj(psoc); 1467 if (!scan_obj) { 1468 scm_err("scan_obj is NULL"); 1469 return QDF_STATUS_E_INVAL; 1470 } 1471 1472 ie_len = util_scan_entry_ie_len(scan_params); 1473 ie = (struct ie_header *) 1474 util_scan_entry_ie_data(scan_params); 1475 1476 while (ie_len >= sizeof(struct ie_header)) { 1477 ie_len -= sizeof(struct ie_header); 1478 1479 if (!ie->ie_len) { 1480 ie += 1; 1481 continue; 1482 } 1483 1484 if (ie_len < ie->ie_len) { 1485 if (scan_obj->allow_bss_with_incomplete_ie) { 1486 scm_debug(QDF_MAC_ADDR_FMT": Scan allowed with incomplete corrupted IE:%x, ie_len: %d, ie->ie_len: %d, stop processing further", 1487 QDF_MAC_ADDR_REF(scan_params->bssid.bytes), 1488 ie->ie_id, ie_len, ie->ie_len); 1489 break; 1490 } 1491 scm_debug(QDF_MAC_ADDR_FMT": Scan not allowed with incomplete corrupted IE:%x, ie_len: %d, ie->ie_len: %d, stop processing further", 1492 QDF_MAC_ADDR_REF(scan_params->bssid.bytes), 1493 ie->ie_id, ie_len, ie->ie_len); 1494 return QDF_STATUS_E_INVAL; 1495 } 1496 1497 switch (ie->ie_id) { 1498 case WLAN_ELEMID_SSID: 1499 if (ie->ie_len > (sizeof(struct ie_ssid) - 1500 sizeof(struct ie_header))) 1501 goto err; 1502 scan_params->ie_list.ssid = (uint8_t *)ie; 1503 break; 1504 case WLAN_ELEMID_RATES: 1505 if (ie->ie_len > WLAN_SUPPORTED_RATES_IE_MAX_LEN) 1506 goto err; 1507 scan_params->ie_list.rates = (uint8_t *)ie; 1508 break; 1509 case WLAN_ELEMID_DSPARMS: 1510 if (ie->ie_len != WLAN_DS_PARAM_IE_MAX_LEN) 1511 return QDF_STATUS_E_INVAL; 1512 scan_params->ie_list.ds_param = (uint8_t *)ie; 1513 chan_idx = ((struct ds_ie *)ie)->cur_chan; 1514 *chan_freq = wlan_reg_chan_band_to_freq(pdev, chan_idx, 1515 band_mask); 1516 /* Drop if invalid freq */ 1517 if (scan_obj->drop_bcn_on_invalid_freq && 1518 !wlan_reg_is_freq_enabled(pdev, 1519 *chan_freq, 1520 REG_CURRENT_PWR_MODE)) { 1521 scm_debug(QDF_MAC_ADDR_FMT": Drop as invalid chan %d in DS IE, freq %d, band_mask %d", 1522 QDF_MAC_ADDR_REF( 1523 scan_params->bssid.bytes), 1524 chan_idx, *chan_freq, band_mask); 1525 return QDF_STATUS_E_INVAL; 1526 } 1527 break; 1528 case WLAN_ELEMID_TIM: 1529 if (ie->ie_len < WLAN_TIM_IE_MIN_LENGTH) 1530 goto err; 1531 scan_params->ie_list.tim = (uint8_t *)ie; 1532 scan_params->dtim_period = 1533 ((struct wlan_tim_ie *)ie)->tim_period; 1534 break; 1535 case WLAN_ELEMID_COUNTRY: 1536 if (ie->ie_len < WLAN_COUNTRY_IE_MIN_LEN) 1537 goto err; 1538 scan_params->ie_list.country = (uint8_t *)ie; 1539 break; 1540 case WLAN_ELEMID_QBSS_LOAD: 1541 if (ie->ie_len != sizeof(struct qbss_load_ie) - 1542 sizeof(struct ie_header)) { 1543 /* 1544 * Expected QBSS IE length is 5Bytes; For some 1545 * old cisco AP, QBSS IE length is 4Bytes, which 1546 * doesn't match with latest spec, So ignore 1547 * QBSS IE in such case. 1548 */ 1549 break; 1550 } 1551 scan_params->ie_list.qbssload = (uint8_t *)ie; 1552 break; 1553 case WLAN_ELEMID_CHANSWITCHANN: 1554 if (ie->ie_len != WLAN_CSA_IE_MAX_LEN) 1555 goto err; 1556 scan_params->ie_list.csa = (uint8_t *)ie; 1557 break; 1558 case WLAN_ELEMID_IBSSDFS: 1559 if (ie->ie_len < WLAN_IBSSDFS_IE_MIN_LEN) 1560 goto err; 1561 scan_params->ie_list.ibssdfs = (uint8_t *)ie; 1562 break; 1563 case WLAN_ELEMID_QUIET: 1564 if (ie->ie_len != WLAN_QUIET_IE_MAX_LEN) 1565 goto err; 1566 scan_params->ie_list.quiet = (uint8_t *)ie; 1567 break; 1568 case WLAN_ELEMID_ERP: 1569 if (ie->ie_len != (sizeof(struct erp_ie) - 1570 sizeof(struct ie_header))) 1571 goto err; 1572 scan_params->erp = ((struct erp_ie *)ie)->value; 1573 break; 1574 case WLAN_ELEMID_HTCAP_ANA: 1575 if (ie->ie_len == sizeof(struct htcap_cmn_ie)) { 1576 scan_params->ie_list.htcap = 1577 (uint8_t *)&(((struct htcap_ie *)ie)->ie); 1578 } 1579 break; 1580 case WLAN_ELEMID_RSN: 1581 /* 1582 * For security cert TC, RSNIE length can be 1 but if 1583 * beacon is dropped, old entry will remain in scan 1584 * cache and cause cert TC failure as connection with 1585 * old entry with valid RSN IE will pass. 1586 * So instead of dropping the frame, do not store the 1587 * RSN pointer so that old entry is overwritten. 1588 */ 1589 if (ie->ie_len >= WLAN_RSN_IE_MIN_LEN) 1590 scan_params->ie_list.rsn = (uint8_t *)ie; 1591 break; 1592 case WLAN_ELEMID_XRATES: 1593 if (ie->ie_len > WLAN_EXT_SUPPORTED_RATES_IE_MAX_LEN) 1594 goto err; 1595 scan_params->ie_list.xrates = (uint8_t *)ie; 1596 break; 1597 case WLAN_ELEMID_EXTCHANSWITCHANN: 1598 if (ie->ie_len != WLAN_XCSA_IE_MAX_LEN) 1599 goto err; 1600 scan_params->ie_list.xcsa = (uint8_t *)ie; 1601 break; 1602 case WLAN_ELEMID_SECCHANOFFSET: 1603 if (ie->ie_len != WLAN_SECCHANOFF_IE_MAX_LEN) 1604 goto err; 1605 scan_params->ie_list.secchanoff = (uint8_t *)ie; 1606 break; 1607 case WLAN_ELEMID_HTINFO_ANA: 1608 if (ie->ie_len != sizeof(struct wlan_ie_htinfo_cmn)) 1609 goto err; 1610 scan_params->ie_list.htinfo = 1611 (uint8_t *)&(((struct wlan_ie_htinfo *) ie)->hi_ie); 1612 chan_idx = ((struct wlan_ie_htinfo_cmn *) 1613 (scan_params->ie_list.htinfo))->hi_ctrlchannel; 1614 *chan_freq = wlan_reg_chan_band_to_freq(pdev, chan_idx, 1615 band_mask); 1616 /* Drop if invalid freq */ 1617 if (scan_obj->drop_bcn_on_invalid_freq && 1618 !wlan_reg_is_freq_enabled(pdev, 1619 *chan_freq, 1620 REG_CURRENT_PWR_MODE)) { 1621 scm_debug_rl(QDF_MAC_ADDR_FMT": Drop as invalid channel %d freq %d in HT_INFO IE", 1622 QDF_MAC_ADDR_REF(scan_params->bssid.bytes), 1623 chan_idx, *chan_freq); 1624 return QDF_STATUS_E_INVAL; 1625 } 1626 break; 1627 case WLAN_ELEMID_WAPI: 1628 if (ie->ie_len < WLAN_WAPI_IE_MIN_LEN) 1629 goto err; 1630 scan_params->ie_list.wapi = (uint8_t *)ie; 1631 break; 1632 case WLAN_ELEMID_XCAPS: 1633 if (ie->ie_len > WLAN_EXTCAP_IE_MAX_LEN) 1634 goto err; 1635 scan_params->ie_list.extcaps = (uint8_t *)ie; 1636 break; 1637 case WLAN_ELEMID_VHTCAP: 1638 if (ie->ie_len != (sizeof(struct wlan_ie_vhtcaps) - 1639 sizeof(struct ie_header))) 1640 goto err; 1641 scan_params->ie_list.vhtcap = (uint8_t *)ie; 1642 break; 1643 case WLAN_ELEMID_VHTOP: 1644 if (ie->ie_len != (sizeof(struct wlan_ie_vhtop) - 1645 sizeof(struct ie_header))) 1646 goto err; 1647 scan_params->ie_list.vhtop = (uint8_t *)ie; 1648 break; 1649 case WLAN_ELEMID_OP_MODE_NOTIFY: 1650 if (ie->ie_len != WLAN_OPMODE_IE_MAX_LEN) 1651 goto err; 1652 scan_params->ie_list.opmode = (uint8_t *)ie; 1653 break; 1654 case WLAN_ELEMID_MOBILITY_DOMAIN: 1655 if (ie->ie_len != WLAN_MOBILITY_DOMAIN_IE_MAX_LEN) 1656 goto err; 1657 scan_params->ie_list.mdie = (uint8_t *)ie; 1658 break; 1659 case WLAN_ELEMID_VENDOR: 1660 status = util_scan_parse_vendor_ie(scan_params, 1661 ie); 1662 if (QDF_IS_STATUS_ERROR(status)) 1663 goto err_status; 1664 break; 1665 case WLAN_ELEMID_VHT_TX_PWR_ENVLP: 1666 if (ie->ie_len < WLAN_TPE_IE_MIN_LEN) 1667 goto err; 1668 if (tpe_idx >= WLAN_MAX_NUM_TPE_IE) 1669 goto err; 1670 scan_params->ie_list.tpe[tpe_idx++] = (uint8_t *)ie; 1671 break; 1672 case WLAN_ELEMID_CHAN_SWITCH_WRAP: 1673 scan_params->ie_list.cswrp = (uint8_t *)ie; 1674 /* Go to next sub IE */ 1675 sub_ie = (struct ie_header *) 1676 (((uint8_t *)ie) + sizeof(struct ie_header)); 1677 sub_ie_len = ie->ie_len; 1678 status = 1679 util_scan_parse_chan_switch_wrapper_ie( 1680 scan_params, sub_ie, sub_ie_len); 1681 if (QDF_IS_STATUS_ERROR(status)) { 1682 goto err_status; 1683 } 1684 break; 1685 case WLAN_ELEMID_FILS_INDICATION: 1686 if (ie->ie_len < WLAN_FILS_INDICATION_IE_MIN_LEN) 1687 goto err; 1688 scan_params->ie_list.fils_indication = (uint8_t *)ie; 1689 break; 1690 case WLAN_ELEMID_RSNXE: 1691 if (!ie->ie_len) 1692 goto err; 1693 scan_params->ie_list.rsnxe = (uint8_t *)ie; 1694 break; 1695 case WLAN_ELEMID_EXTN_ELEM: 1696 status = util_scan_parse_extn_ie(scan_params, ie); 1697 if (QDF_IS_STATUS_ERROR(status)) 1698 goto err_status; 1699 break; 1700 case WLAN_ELEMID_REDUCED_NEIGHBOR_REPORT: 1701 if (ie->ie_len < WLAN_RNR_IE_MIN_LEN) 1702 goto err; 1703 scan_params->ie_list.rnrie = (uint8_t *)ie; 1704 status = util_scan_parse_rnr_ie(scan_params, ie); 1705 if (QDF_IS_STATUS_ERROR(status)) 1706 goto err_status; 1707 break; 1708 default: 1709 break; 1710 } 1711 1712 /* Consume info element */ 1713 ie_len -= ie->ie_len; 1714 /* Go to next IE */ 1715 ie = (struct ie_header *) 1716 (((uint8_t *) ie) + 1717 sizeof(struct ie_header) + 1718 ie->ie_len); 1719 } 1720 1721 return QDF_STATUS_SUCCESS; 1722 1723 err: 1724 status = QDF_STATUS_E_INVAL; 1725 err_status: 1726 scm_debug(QDF_MAC_ADDR_FMT ": failed to parse IE - id: %d, len: %d", 1727 QDF_MAC_ADDR_REF(scan_params->bssid.bytes), 1728 ie->ie_id, ie->ie_len); 1729 1730 return status; 1731 } 1732 1733 /** 1734 * util_scan_update_esp_data: update ESP params from beacon/probe response 1735 * @esp_information: pointer to wlan_esp_information 1736 * @scan_entry: new received entry 1737 * 1738 * The Estimated Service Parameters element is 1739 * used by a AP to provide information to another STA which 1740 * can then use the information as input to an algorithm to 1741 * generate an estimate of throughput between the two STAs. 1742 * The ESP Information List field contains from 1 to 4 ESP 1743 * Information fields(each field 24 bits), each corresponding 1744 * to an access category for which estimated service parameters 1745 * information is provided. 1746 * 1747 * Return: None 1748 */ 1749 static void util_scan_update_esp_data(struct wlan_esp_ie *esp_information, 1750 struct scan_cache_entry *scan_entry) 1751 { 1752 1753 uint8_t *data; 1754 int i = 0; 1755 uint64_t total_elements; 1756 struct wlan_esp_info *esp_info; 1757 struct wlan_esp_ie *esp_ie; 1758 1759 esp_ie = (struct wlan_esp_ie *) 1760 util_scan_entry_esp_info(scan_entry); 1761 1762 // Ignore ESP_ID_EXTN element 1763 total_elements = esp_ie->esp_len - 1; 1764 data = (uint8_t *)esp_ie + 3; 1765 do_div(total_elements, ESP_INFORMATION_LIST_LENGTH); 1766 1767 if (total_elements > MAX_ESP_INFORMATION_FIELD) { 1768 scm_err("No of Air time fractions are greater than supported"); 1769 return; 1770 } 1771 1772 for (i = 0; i < total_elements && 1773 data < ((uint8_t *)esp_ie + esp_ie->esp_len); i++) { 1774 esp_info = (struct wlan_esp_info *)data; 1775 if (esp_info->access_category == ESP_AC_BK) { 1776 qdf_mem_copy(&esp_information->esp_info_AC_BK, 1777 data, 3); 1778 data = data + ESP_INFORMATION_LIST_LENGTH; 1779 continue; 1780 } 1781 if (esp_info->access_category == ESP_AC_BE) { 1782 qdf_mem_copy(&esp_information->esp_info_AC_BE, 1783 data, 3); 1784 data = data + ESP_INFORMATION_LIST_LENGTH; 1785 continue; 1786 } 1787 if (esp_info->access_category == ESP_AC_VI) { 1788 qdf_mem_copy(&esp_information->esp_info_AC_VI, 1789 data, 3); 1790 data = data + ESP_INFORMATION_LIST_LENGTH; 1791 continue; 1792 } 1793 if (esp_info->access_category == ESP_AC_VO) { 1794 qdf_mem_copy(&esp_information->esp_info_AC_VO, 1795 data, 3); 1796 data = data + ESP_INFORMATION_LIST_LENGTH; 1797 break; 1798 } 1799 } 1800 } 1801 1802 /** 1803 * util_scan_scm_update_bss_with_esp_data: calculate estimated air time 1804 * fraction 1805 * @scan_entry: new received entry 1806 * 1807 * This function process all Access category ESP params and provide 1808 * best effort air time fraction. 1809 * If best effort is not available, it will choose VI, VO and BK in sequence 1810 * 1811 */ 1812 static void util_scan_scm_update_bss_with_esp_data( 1813 struct scan_cache_entry *scan_entry) 1814 { 1815 uint8_t air_time_fraction = 0; 1816 struct wlan_esp_ie esp_information; 1817 1818 if (!scan_entry->ie_list.esp) 1819 return; 1820 1821 util_scan_update_esp_data(&esp_information, scan_entry); 1822 1823 /* 1824 * If the ESP metric is transmitting multiple airtime fractions, then 1825 * follow the sequence AC_BE, AC_VI, AC_VO, AC_BK and pick whichever is 1826 * the first one available 1827 */ 1828 if (esp_information.esp_info_AC_BE.access_category 1829 == ESP_AC_BE) 1830 air_time_fraction = 1831 esp_information.esp_info_AC_BE. 1832 estimated_air_fraction; 1833 else if (esp_information.esp_info_AC_VI.access_category 1834 == ESP_AC_VI) 1835 air_time_fraction = 1836 esp_information.esp_info_AC_VI. 1837 estimated_air_fraction; 1838 else if (esp_information.esp_info_AC_VO.access_category 1839 == ESP_AC_VO) 1840 air_time_fraction = 1841 esp_information.esp_info_AC_VO. 1842 estimated_air_fraction; 1843 else if (esp_information.esp_info_AC_BK.access_category 1844 == ESP_AC_BK) 1845 air_time_fraction = 1846 esp_information.esp_info_AC_BK. 1847 estimated_air_fraction; 1848 scan_entry->air_time_fraction = air_time_fraction; 1849 } 1850 1851 /** 1852 * util_scan_scm_calc_nss_supported_by_ap() - finds out nss from AP 1853 * @scan_params: new received entry 1854 * 1855 * Return: number of nss advertised by AP 1856 */ 1857 static int util_scan_scm_calc_nss_supported_by_ap( 1858 struct scan_cache_entry *scan_params) 1859 { 1860 struct htcap_cmn_ie *htcap; 1861 struct wlan_ie_vhtcaps *vhtcaps; 1862 uint8_t *he_cap; 1863 uint8_t *end_ptr = NULL; 1864 uint16_t rx_mcs_map = 0; 1865 uint8_t *mcs_map_offset; 1866 1867 htcap = (struct htcap_cmn_ie *) 1868 util_scan_entry_htcap(scan_params); 1869 vhtcaps = (struct wlan_ie_vhtcaps *) 1870 util_scan_entry_vhtcap(scan_params); 1871 he_cap = util_scan_entry_hecap(scan_params); 1872 1873 if (he_cap) { 1874 /* Using rx mcs map related to 80MHz or lower as in some 1875 * cases higher mcs may support lesser NSS than that 1876 * of lowe mcs. Thus giving max NSS capability. 1877 */ 1878 end_ptr = he_cap + he_cap[1] + sizeof(struct ie_header); 1879 mcs_map_offset = (he_cap + sizeof(struct extn_ie_header) + 1880 WLAN_HE_MACCAP_LEN + WLAN_HE_PHYCAP_LEN); 1881 if ((mcs_map_offset + WLAN_HE_MCS_MAP_LEN) <= end_ptr) { 1882 rx_mcs_map = *(uint16_t *)mcs_map_offset; 1883 } else { 1884 rx_mcs_map = WLAN_INVALID_RX_MCS_MAP; 1885 scm_debug("mcs_map_offset exceeds he cap len"); 1886 } 1887 } else if (vhtcaps) { 1888 rx_mcs_map = vhtcaps->rx_mcs_map; 1889 } 1890 1891 if (he_cap || vhtcaps) { 1892 if ((rx_mcs_map & 0xC000) != 0xC000) 1893 return 8; 1894 1895 if ((rx_mcs_map & 0x3000) != 0x3000) 1896 return 7; 1897 1898 if ((rx_mcs_map & 0x0C00) != 0x0C00) 1899 return 6; 1900 1901 if ((rx_mcs_map & 0x0300) != 0x0300) 1902 return 5; 1903 1904 if ((rx_mcs_map & 0x00C0) != 0x00C0) 1905 return 4; 1906 1907 if ((rx_mcs_map & 0x0030) != 0x0030) 1908 return 3; 1909 1910 if ((rx_mcs_map & 0x000C) != 0x000C) 1911 return 2; 1912 } else if (htcap) { 1913 if (htcap->mcsset[3]) 1914 return 4; 1915 1916 if (htcap->mcsset[2]) 1917 return 3; 1918 1919 if (htcap->mcsset[1]) 1920 return 2; 1921 1922 } 1923 return 1; 1924 } 1925 1926 #ifdef WLAN_DFS_CHAN_HIDDEN_SSID 1927 QDF_STATUS 1928 util_scan_add_hidden_ssid(struct wlan_objmgr_pdev *pdev, qdf_nbuf_t bcnbuf) 1929 { 1930 struct wlan_frame_hdr *hdr; 1931 struct wlan_bcn_frame *bcn; 1932 struct wlan_scan_obj *scan_obj; 1933 struct wlan_ssid *conf_ssid; 1934 struct ie_header *ie; 1935 uint32_t frame_len = qdf_nbuf_len(bcnbuf); 1936 uint16_t bcn_ie_offset, ssid_ie_start_offset, ssid_ie_end_offset; 1937 uint16_t tmplen, ie_length; 1938 uint8_t *pbeacon, *tmp; 1939 bool set_ssid_flag = false; 1940 struct ie_ssid ssid = {0}; 1941 uint8_t pdev_id; 1942 1943 if (!pdev) { 1944 scm_warn("pdev: 0x%pK is NULL", pdev); 1945 return QDF_STATUS_E_NULL_VALUE; 1946 } 1947 pdev_id = wlan_objmgr_pdev_get_pdev_id(pdev); 1948 scan_obj = wlan_pdev_get_scan_obj(pdev); 1949 if (!scan_obj) { 1950 scm_warn("null scan_obj"); 1951 return QDF_STATUS_E_NULL_VALUE; 1952 } 1953 1954 conf_ssid = &scan_obj->pdev_info[pdev_id].conf_ssid; 1955 1956 hdr = (struct wlan_frame_hdr *)qdf_nbuf_data(bcnbuf); 1957 1958 /* received bssid does not match configured bssid */ 1959 if (qdf_mem_cmp(hdr->i_addr3, scan_obj->pdev_info[pdev_id].conf_bssid, 1960 QDF_MAC_ADDR_SIZE) || 1961 conf_ssid->length == 0) { 1962 return QDF_STATUS_SUCCESS; 1963 } 1964 1965 bcn = (struct wlan_bcn_frame *)(qdf_nbuf_data(bcnbuf) + sizeof(*hdr)); 1966 pbeacon = (uint8_t *)bcn; 1967 1968 ie = (struct ie_header *)(pbeacon + 1969 offsetof(struct wlan_bcn_frame, ie)); 1970 1971 bcn_ie_offset = offsetof(struct wlan_bcn_frame, ie); 1972 ie_length = (uint16_t)(frame_len - sizeof(*hdr) - 1973 bcn_ie_offset); 1974 1975 while (ie_length >= sizeof(struct ie_header)) { 1976 ie_length -= sizeof(struct ie_header); 1977 1978 bcn_ie_offset += sizeof(struct ie_header); 1979 1980 if (ie_length < ie->ie_len) { 1981 scm_debug("Incomplete corrupted IE:%x", ie->ie_id); 1982 return QDF_STATUS_E_INVAL; 1983 } 1984 if (ie->ie_id == WLAN_ELEMID_SSID) { 1985 if (ie->ie_len > (sizeof(struct ie_ssid) - 1986 sizeof(struct ie_header))) { 1987 return QDF_STATUS_E_INVAL; 1988 } 1989 ssid.ssid_id = ie->ie_id; 1990 ssid.ssid_len = ie->ie_len; 1991 1992 if (ssid.ssid_len) 1993 qdf_mem_copy(ssid.ssid, 1994 ie + sizeof(struct ie_header), 1995 ssid.ssid_len); 1996 1997 if (util_scan_is_hidden_ssid(&ssid)) { 1998 set_ssid_flag = true; 1999 ssid_ie_start_offset = bcn_ie_offset - 2000 sizeof(struct ie_header); 2001 ssid_ie_end_offset = bcn_ie_offset + 2002 ie->ie_len; 2003 } 2004 } 2005 if (ie->ie_len == 0) { 2006 ie += 1; /* next IE */ 2007 continue; 2008 } 2009 if (ie->ie_id == WLAN_ELEMID_VENDOR && 2010 is_wps_oui((uint8_t *)ie)) { 2011 set_ssid_flag = false; 2012 break; 2013 } 2014 /* Consume info element */ 2015 ie_length -= ie->ie_len; 2016 /* Go to next IE */ 2017 ie = (struct ie_header *)(((uint8_t *)ie) + 2018 sizeof(struct ie_header) + 2019 ie->ie_len); 2020 } 2021 2022 if (set_ssid_flag) { 2023 /* Hidden SSID if the Length is 0 */ 2024 if (!ssid.ssid_len) { 2025 /* increase the taillength by length of ssid */ 2026 if (qdf_nbuf_put_tail(bcnbuf, 2027 conf_ssid->length) == NULL) { 2028 scm_debug("No enough tailroom"); 2029 return QDF_STATUS_E_NOMEM; 2030 } 2031 /* 2032 * "qdf_nbuf_put_tail" might change the data pointer of 2033 * the skb. Therefore use the new data area. 2034 */ 2035 pbeacon = (qdf_nbuf_data(bcnbuf) + sizeof(*hdr)); 2036 /* length of the buffer to be copied */ 2037 tmplen = frame_len - 2038 sizeof(*hdr) - ssid_ie_end_offset; 2039 /* 2040 * tmp memory to copy the beacon info 2041 * after ssid ie. 2042 */ 2043 tmp = qdf_mem_malloc(tmplen * sizeof(u_int8_t)); 2044 if (!tmp) 2045 return QDF_STATUS_E_NOMEM; 2046 2047 /* Copy beacon data after ssid ie to tmp */ 2048 qdf_nbuf_copy_bits(bcnbuf, (sizeof(*hdr) + 2049 ssid_ie_end_offset), tmplen, tmp); 2050 /* Add ssid length */ 2051 *(pbeacon + (ssid_ie_start_offset + 1)) 2052 = conf_ssid->length; 2053 /* Insert the SSID string */ 2054 qdf_mem_copy((pbeacon + ssid_ie_end_offset), 2055 conf_ssid->ssid, conf_ssid->length); 2056 /* Copy rest of the beacon data */ 2057 qdf_mem_copy((pbeacon + ssid_ie_end_offset + 2058 conf_ssid->length), tmp, tmplen); 2059 qdf_mem_free(tmp); 2060 2061 /* Hidden ssid with all 0's */ 2062 } else if (ssid.ssid_len == conf_ssid->length) { 2063 /* Insert the SSID string */ 2064 qdf_mem_copy((pbeacon + ssid_ie_start_offset + 2065 sizeof(struct ie_header)), 2066 conf_ssid->ssid, conf_ssid->length); 2067 } else { 2068 scm_debug("mismatch in hidden ssid length"); 2069 return QDF_STATUS_E_INVAL; 2070 } 2071 } 2072 return QDF_STATUS_SUCCESS; 2073 } 2074 #endif /* WLAN_DFS_CHAN_HIDDEN_SSID */ 2075 2076 #ifdef WLAN_ADAPTIVE_11R 2077 /** 2078 * scm_fill_adaptive_11r_cap() - Check if the AP supports adaptive 11r 2079 * @scan_entry: Pointer to the scan entry 2080 * 2081 * Return: true if adaptive 11r is advertised else false 2082 */ 2083 static void scm_fill_adaptive_11r_cap(struct scan_cache_entry *scan_entry) 2084 { 2085 uint8_t *ie; 2086 uint8_t data; 2087 bool adaptive_11r; 2088 2089 ie = util_scan_entry_adaptive_11r(scan_entry); 2090 if (!ie) 2091 return; 2092 2093 data = *(ie + OUI_LENGTH); 2094 adaptive_11r = (data & 0x1) ? true : false; 2095 2096 scan_entry->adaptive_11r_ap = adaptive_11r; 2097 } 2098 #else 2099 static void scm_fill_adaptive_11r_cap(struct scan_cache_entry *scan_entry) 2100 { 2101 scan_entry->adaptive_11r_ap = false; 2102 } 2103 #endif 2104 2105 static void util_scan_set_security(struct scan_cache_entry *scan_params) 2106 { 2107 if (util_scan_entry_wpa(scan_params)) 2108 scan_params->security_type |= SCAN_SECURITY_TYPE_WPA; 2109 2110 if (util_scan_entry_rsn(scan_params)) 2111 scan_params->security_type |= SCAN_SECURITY_TYPE_RSN; 2112 if (util_scan_entry_wapi(scan_params)) 2113 scan_params->security_type |= SCAN_SECURITY_TYPE_WAPI; 2114 2115 if (!scan_params->security_type && 2116 scan_params->cap_info.wlan_caps.privacy) 2117 scan_params->security_type |= SCAN_SECURITY_TYPE_WEP; 2118 } 2119 2120 #ifdef WLAN_FEATURE_11BE_MLO 2121 /* 2122 * Multi link IE field offsets 2123 * ------------------------------------------------------------------------ 2124 * | EID(1) | Len (1) | EID_EXT (1) | ML_CONTROL (2) | CMN_INFO (var) | ... | 2125 * ------------------------------------------------------------------------ 2126 */ 2127 #define ML_CONTROL_OFFSET 3 2128 #define ML_CMN_INFO_OFFSET ML_CONTROL_OFFSET + 2 2129 2130 #define CMN_INFO_LINK_ID_PRESENT_BIT BIT(4) 2131 #define LINK_INFO_MAC_ADDR_PRESENT_BIT BIT(5) 2132 2133 /* This function is implemented as per IEEE802.11be D1.0, there is no difference 2134 * in presence bitmap for beacon, probe response and probe request frames. 2135 * This code is to be revisited for future drafts if the presence bitmap values 2136 * changes for the beacon, probe response and probe request frames. 2137 */ 2138 static uint8_t util_get_link_info_offset(uint8_t *ml_ie, bool *is_ml_ie_valid) 2139 { 2140 qdf_size_t ml_ie_len = 0; 2141 qdf_size_t parsed_ie_len = 0; 2142 struct wlan_ie_multilink *mlie_fixed; 2143 uint16_t mlcontrol; 2144 uint16_t presencebm; 2145 qdf_size_t actual_len; 2146 2147 if (!ml_ie) { 2148 scm_err("ml_ie is null"); 2149 return 0; 2150 } 2151 2152 if (!is_ml_ie_valid) { 2153 scm_err_rl("is_ml_ie_valid is null"); 2154 return 0; 2155 } 2156 2157 ml_ie_len = ml_ie[TAG_LEN_POS]; 2158 if (!ml_ie_len) { 2159 scm_err("ml_ie_len is zero"); 2160 return 0; 2161 } 2162 2163 if (ml_ie_len < sizeof(struct wlan_ie_multilink)) { 2164 scm_err_rl("Length %zu octets is smaller than required for the fixed portion of Multi-Link element (%zu octets)", 2165 ml_ie_len, sizeof(struct wlan_ie_multilink)); 2166 return 0; 2167 } 2168 2169 mlie_fixed = (struct wlan_ie_multilink *)ml_ie; 2170 mlcontrol = le16toh(mlie_fixed->mlcontrol); 2171 presencebm = QDF_GET_BITS(mlcontrol, WLAN_ML_CTRL_PBM_IDX, 2172 WLAN_ML_CTRL_PBM_BITS); 2173 2174 parsed_ie_len += sizeof(*mlie_fixed); 2175 2176 parsed_ie_len += WLAN_ML_BV_CINFO_LENGTH_SIZE; 2177 parsed_ie_len += QDF_MAC_ADDR_SIZE; 2178 2179 /* Check if Link ID info is present */ 2180 if (presencebm & WLAN_ML_BV_CTRL_PBM_LINKIDINFO_P) 2181 parsed_ie_len += WLAN_ML_BV_CINFO_LINKIDINFO_SIZE; 2182 2183 /* Check if BSS parameter change count is present */ 2184 if (presencebm & WLAN_ML_BV_CTRL_PBM_BSSPARAMCHANGECNT_P) 2185 parsed_ie_len += WLAN_ML_BSSPARAMCHNGCNT_SIZE; 2186 2187 /* Check if Medium Sync Delay Info is present */ 2188 if (presencebm & WLAN_ML_BV_CTRL_PBM_MEDIUMSYNCDELAYINFO_P) 2189 parsed_ie_len += WLAN_ML_BV_CINFO_MEDMSYNCDELAYINFO_SIZE; 2190 2191 /* Check if EML cap is present */ 2192 if (presencebm & WLAN_ML_BV_CTRL_PBM_EMLCAP_P) 2193 parsed_ie_len += WLAN_ML_BV_CINFO_EMLCAP_SIZE; 2194 2195 /* Check if MLD cap and op is present */ 2196 if (presencebm & WLAN_ML_BV_CTRL_PBM_MLDCAPANDOP_P) 2197 parsed_ie_len += WLAN_ML_BV_CINFO_MLDCAPANDOP_SIZE; 2198 2199 /* Check if MLD ID is present */ 2200 if (presencebm & WLAN_ML_BV_CTRL_PBM_MLDID_P) 2201 parsed_ie_len += WLAN_ML_BV_CINFO_MLDID_SIZE; 2202 2203 /* Check if Extended MLD Cap and Op is present */ 2204 if (presencebm & WLAN_ML_BV_CTRL_PBM_EXT_MLDCAPANDOP_P) 2205 parsed_ie_len += WLAN_ML_BV_CINFO_EXT_MLDCAPANDOP_SIZE; 2206 2207 /* Offset calculation starts from the beginning of the ML IE (including 2208 * EID) hence, adding the size of IE header to ML IE length. 2209 */ 2210 actual_len = ml_ie_len + sizeof(struct ie_header); 2211 if (parsed_ie_len <= actual_len) { 2212 *is_ml_ie_valid = true; 2213 } else { 2214 *is_ml_ie_valid = false; 2215 scm_err("Invalid ML IE, expect min len: %zu, actual len: %zu", 2216 parsed_ie_len, actual_len); 2217 } 2218 if (parsed_ie_len < actual_len) 2219 return parsed_ie_len; 2220 2221 return 0; 2222 } 2223 2224 static void 2225 util_get_ml_bv_partner_link_info(struct wlan_objmgr_pdev *pdev, 2226 struct scan_cache_entry *scan_entry) 2227 { 2228 uint8_t *ml_ie = scan_entry->ie_list.multi_link_bv; 2229 uint8_t *end_ptr = NULL; 2230 bool is_ml_ie_valid; 2231 uint8_t offset = util_get_link_info_offset(ml_ie, &is_ml_ie_valid); 2232 uint16_t sta_ctrl; 2233 uint8_t *stactrl_offset = NULL, *ielist_offset; 2234 uint8_t perstaprof_len = 0, perstaprof_stainfo_len = 0, ielist_len = 0; 2235 struct partner_link_info *link_info = NULL; 2236 uint8_t eid = 0; 2237 uint8_t link_idx = 0; 2238 uint8_t rnr_idx = 0; 2239 struct rnr_bss_info *rnr = NULL; 2240 qdf_size_t ml_ie_len = ml_ie[TAG_LEN_POS] + sizeof(struct ie_header); 2241 uint16_t freq; 2242 struct scan_cache_entry *tmp_entry; 2243 struct qdf_mac_addr bcast_addr = QDF_MAC_ADDR_BCAST_INIT; 2244 struct scan_mbssid_info *mbssid; 2245 2246 /* Update partner info from RNR IE */ 2247 while ((rnr_idx < MAX_RNR_BSS) && (rnr_idx < scan_entry->rnr.count)) { 2248 if (link_idx >= (MLD_MAX_LINKS - 1)) 2249 break; 2250 rnr = &scan_entry->rnr.bss_info[rnr_idx]; 2251 if (rnr->mld_info_valid && !rnr->mld_info.mld_id) { 2252 mbssid = &scan_entry->mbssid_info; 2253 freq = 2254 wlan_reg_chan_opclass_to_freq(rnr->channel_number, 2255 rnr->operating_class, 2256 true); 2257 2258 if ((!scan_entry->mbssid_info.profile_count) && 2259 !(rnr->bss_params & TBTT_BSS_PARAM_TRANS_BSSID_BIT)) { 2260 tmp_entry = 2261 scm_scan_get_scan_entry_by_mac_freq(pdev, 2262 &rnr->bssid, freq); 2263 if (tmp_entry) { 2264 qdf_mem_copy(mbssid, 2265 &tmp_entry->mbssid_info, 2266 sizeof(*mbssid)); 2267 util_scan_free_cache_entry(tmp_entry); 2268 } else { 2269 qdf_mem_copy(mbssid->non_trans_bssid, 2270 rnr->bssid.bytes, 2271 QDF_MAC_ADDR_SIZE); 2272 qdf_mem_copy(mbssid->trans_bssid, 2273 bcast_addr.bytes, 2274 QDF_MAC_ADDR_SIZE); 2275 } 2276 } 2277 2278 link_info = &scan_entry->ml_info.link_info[link_idx]; 2279 qdf_mem_copy(&link_info->link_addr, 2280 &rnr->bssid, QDF_MAC_ADDR_SIZE); 2281 2282 link_info->link_id = rnr->mld_info.link_id; 2283 link_info->freq = freq; 2284 2285 if (!link_info->freq) 2286 scm_debug("freq 0 rnr channel %u op_class %u", 2287 rnr->channel_number, 2288 rnr->operating_class); 2289 link_info->op_class = rnr->operating_class; 2290 link_idx++; 2291 } 2292 rnr_idx++; 2293 } 2294 2295 scan_entry->ml_info.num_links = link_idx; 2296 if (!offset || 2297 (offset + sizeof(struct wlan_ml_bv_linfo_perstaprof) >= ml_ie_len)) { 2298 scm_err_rl("incorrect offset value %d", offset); 2299 return; 2300 } 2301 2302 /* TODO: loop through all the STA info fields */ 2303 2304 /* 2305 * Per-STA Profile subelement format of the Basic Multi-Link element 2306 * 2307 * |---------------|--------|-------------|----------|-------------| 2308 * | Subelement ID | Length | STA control | STA info | STA profile | 2309 * |---------------|--------|-------------|----------|-------------| 2310 * Octets: 1 1 2 variable variable 2311 */ 2312 2313 /* Sub element ID 0 represents Per-STA Profile */ 2314 if (ml_ie[offset] == 0) { 2315 perstaprof_len = ml_ie[offset + 1]; 2316 stactrl_offset = &ml_ie[offset + 2]; 2317 end_ptr = &ml_ie[offset] + perstaprof_len + 2; 2318 2319 if (!(end_ptr <= (ml_ie + ml_ie_len))) { 2320 if (ml_ie[TAG_LEN_POS] >= 255) 2321 scm_debug("Possible fragmentation in ml_ie. Ignore the processing"); 2322 else 2323 scm_debug("perstaprof exceeds ML IE boundary. Ignore the processing"); 2324 return; 2325 } 2326 2327 /* Skip sub element ID and length fields */ 2328 offset += 2; 2329 2330 sta_ctrl = *(uint16_t *)(ml_ie + offset); 2331 2332 /* Skip STA control field */ 2333 offset += 2; 2334 2335 /* 2336 * offset points to the beginning of the STA Info field which 2337 * indicates the number of octets in the STA Info field, 2338 * including one octet for the STA Info Length subfield. 2339 */ 2340 perstaprof_stainfo_len = ml_ie[offset]; 2341 2342 /* Skip STA Info Length field */ 2343 offset += perstaprof_stainfo_len; 2344 if (offset >= ml_ie_len) { 2345 scm_err_rl("incorrect offset value %d", offset); 2346 return; 2347 } 2348 2349 /* 2350 * To point to the ie_list offset move past the STA Info 2351 * field. 2352 */ 2353 ielist_offset = &ml_ie[offset]; 2354 2355 /* 2356 * Ensure that the STA Control Field + STA Info Field 2357 * is smaller than the per-STA profile when incrementing 2358 * the pointer to avoid underflow during subtraction. 2359 */ 2360 if ((perstaprof_stainfo_len + 2361 WLAN_ML_BV_LINFO_PERSTAPROF_STACTRL_SIZE) < 2362 perstaprof_len) { 2363 if (!(ielist_offset <= end_ptr)) 2364 ielist_len = 0; 2365 else 2366 ielist_len = perstaprof_len - 2367 (WLAN_ML_BV_LINFO_PERSTAPROF_STACTRL_SIZE + 2368 perstaprof_stainfo_len); 2369 } else { 2370 scm_debug("No STA profile IE list found"); 2371 ielist_len = 0; 2372 } 2373 2374 link_info = NULL; 2375 for (link_idx = 0; link_idx < scan_entry->ml_info.num_links; 2376 link_idx++) { 2377 if (scan_entry->ml_info.link_info[link_idx].link_id == 2378 (sta_ctrl & 0xF)) { 2379 link_info = &scan_entry->ml_info.link_info[link_idx]; 2380 } 2381 } 2382 2383 /* Get the pointers to CSA, ECSA, Max Channel Switch Time IE. */ 2384 if (link_info) { 2385 link_info->csa_ie = wlan_get_ie_ptr_from_eid 2386 (WLAN_ELEMID_CHANSWITCHANN, ielist_offset, 2387 ielist_len); 2388 2389 link_info->ecsa_ie = wlan_get_ie_ptr_from_eid 2390 (WLAN_ELEMID_EXTCHANSWITCHANN, ielist_offset, 2391 ielist_len); 2392 2393 eid = WLAN_EXTN_ELEMID_MAX_CHAN_SWITCH_TIME; 2394 link_info->max_cst_ie = wlan_get_ext_ie_ptr_from_ext_id 2395 (&eid, 1, ielist_offset, ielist_len); 2396 } 2397 } 2398 } 2399 2400 static void util_scan_update_ml_info(struct wlan_objmgr_pdev *pdev, 2401 struct scan_cache_entry *scan_entry) 2402 { 2403 uint8_t *ml_ie = scan_entry->ie_list.multi_link_bv; 2404 uint16_t multi_link_ctrl; 2405 uint8_t offset; 2406 uint8_t mlie_min_len; 2407 bool is_ml_ie_valid = true; 2408 uint8_t *end_ptr = NULL; 2409 2410 if (!scan_entry->ie_list.ehtcap && scan_entry->ie_list.multi_link_bv) { 2411 scan_entry->ie_list.multi_link_bv = NULL; 2412 return; 2413 } 2414 if (!scan_entry->ie_list.multi_link_bv) 2415 return; 2416 2417 mlie_min_len = util_get_link_info_offset(ml_ie, &is_ml_ie_valid); 2418 if (!is_ml_ie_valid) { 2419 scan_entry->ie_list.multi_link_bv = NULL; 2420 return; 2421 } 2422 2423 end_ptr = ml_ie + ml_ie[TAG_LEN_POS] + sizeof(struct ie_header); 2424 2425 multi_link_ctrl = *(uint16_t *)(ml_ie + ML_CONTROL_OFFSET); 2426 2427 /* TODO: update ml_info based on ML IE */ 2428 2429 offset = ML_CMN_INFO_OFFSET; 2430 2431 /* Increment the offset to account for the Common Info Length */ 2432 offset += WLAN_ML_BV_CINFO_LENGTH_SIZE; 2433 2434 if ((ml_ie + offset + QDF_MAC_ADDR_SIZE) <= end_ptr) { 2435 qdf_mem_copy(&scan_entry->ml_info.mld_mac_addr, 2436 ml_ie + offset, QDF_MAC_ADDR_SIZE); 2437 offset += QDF_MAC_ADDR_SIZE; 2438 } 2439 2440 /* TODO: Decode it from ML IE */ 2441 scan_entry->ml_info.num_links = 0; 2442 2443 /** 2444 * Copy Link ID & MAC address of the scan cache entry as first entry 2445 * in the partner info list 2446 */ 2447 if (multi_link_ctrl & CMN_INFO_LINK_ID_PRESENT_BIT) { 2448 if (&ml_ie[offset] < end_ptr) 2449 scan_entry->ml_info.self_link_id = ml_ie[offset] & 0x0F; 2450 } 2451 2452 util_get_ml_bv_partner_link_info(pdev, scan_entry); 2453 } 2454 #else 2455 static void util_scan_update_ml_info(struct wlan_objmgr_pdev *pdev, 2456 struct scan_cache_entry *scan_entry) 2457 { 2458 } 2459 #endif 2460 2461 static QDF_STATUS 2462 util_scan_gen_scan_entry(struct wlan_objmgr_pdev *pdev, 2463 uint8_t *frame, qdf_size_t frame_len, 2464 uint32_t frm_subtype, 2465 struct mgmt_rx_event_params *rx_param, 2466 struct scan_mbssid_info *mbssid_info, 2467 qdf_list_t *scan_list) 2468 { 2469 struct wlan_frame_hdr *hdr; 2470 struct wlan_bcn_frame *bcn; 2471 QDF_STATUS status = QDF_STATUS_SUCCESS; 2472 struct ie_ssid *ssid; 2473 struct scan_cache_entry *scan_entry; 2474 struct qbss_load_ie *qbss_load; 2475 struct scan_cache_node *scan_node; 2476 uint8_t i; 2477 qdf_freq_t chan_freq = 0; 2478 bool is_6g_dup_bcon = false; 2479 uint8_t band_mask; 2480 qdf_freq_t recv_freq = 0; 2481 2482 scan_entry = qdf_mem_malloc_atomic(sizeof(*scan_entry)); 2483 if (!scan_entry) { 2484 scm_err("failed to allocate memory for scan_entry"); 2485 return QDF_STATUS_E_NOMEM; 2486 } 2487 2488 scan_entry->raw_frame.ptr = 2489 qdf_mem_malloc_atomic(frame_len); 2490 if (!scan_entry->raw_frame.ptr) { 2491 scm_err("failed to allocate memory for frame"); 2492 qdf_mem_free(scan_entry); 2493 return QDF_STATUS_E_NOMEM; 2494 } 2495 2496 bcn = (struct wlan_bcn_frame *) 2497 (frame + sizeof(*hdr)); 2498 hdr = (struct wlan_frame_hdr *)frame; 2499 2500 /* update timestamp in nanoseconds needed by kernel layers */ 2501 scan_entry->boottime_ns = qdf_get_bootbased_boottime_ns(); 2502 2503 scan_entry->frm_subtype = frm_subtype; 2504 qdf_mem_copy(scan_entry->bssid.bytes, 2505 hdr->i_addr3, QDF_MAC_ADDR_SIZE); 2506 /* Scr addr */ 2507 qdf_mem_copy(scan_entry->mac_addr.bytes, 2508 hdr->i_addr2, QDF_MAC_ADDR_SIZE); 2509 scan_entry->seq_num = 2510 (le16toh(*(uint16_t *)hdr->i_seq) >> WLAN_SEQ_SEQ_SHIFT); 2511 2512 scan_entry->snr = rx_param->snr; 2513 scan_entry->avg_snr = WLAN_SNR_IN(scan_entry->snr); 2514 scan_entry->rssi_raw = rx_param->rssi; 2515 scan_entry->avg_rssi = WLAN_RSSI_IN(scan_entry->rssi_raw); 2516 scan_entry->tsf_delta = rx_param->tsf_delta; 2517 scan_entry->pdev_id = wlan_objmgr_pdev_get_pdev_id(pdev); 2518 2519 recv_freq = rx_param->chan_freq; 2520 /* Copy per chain rssi to scan entry */ 2521 qdf_mem_copy(scan_entry->per_chain_rssi, rx_param->rssi_ctl, 2522 WLAN_MGMT_TXRX_HOST_MAX_ANTENNA); 2523 band_mask = BIT(wlan_reg_freq_to_band(recv_freq)); 2524 2525 if (!wlan_psoc_nif_fw_ext_cap_get(wlan_pdev_get_psoc(pdev), 2526 WLAN_SOC_CEXT_HW_DB2DBM)) { 2527 for (i = 0; i < WLAN_MGMT_TXRX_HOST_MAX_ANTENNA; i++) { 2528 if (scan_entry->per_chain_rssi[i] != 2529 WLAN_INVALID_PER_CHAIN_SNR) 2530 scan_entry->per_chain_rssi[i] += 2531 WLAN_NOISE_FLOOR_DBM_DEFAULT; 2532 else 2533 scan_entry->per_chain_rssi[i] = 2534 WLAN_INVALID_PER_CHAIN_RSSI; 2535 } 2536 } 2537 2538 /* store jiffies */ 2539 scan_entry->rrm_parent_tsf = (uint32_t)qdf_system_ticks(); 2540 2541 scan_entry->bcn_int = le16toh(bcn->beacon_interval); 2542 2543 /* 2544 * In case if the beacon doesn't have 2545 * valid beacon interval falback to def 2546 */ 2547 if (!scan_entry->bcn_int) 2548 scan_entry->bcn_int = 100; 2549 scan_entry->cap_info.value = le16toh(bcn->capability.value); 2550 qdf_mem_copy(scan_entry->tsf_info.data, 2551 bcn->timestamp, 8); 2552 scan_entry->erp = ERP_NON_ERP_PRESENT; 2553 2554 scan_entry->scan_entry_time = 2555 qdf_mc_timer_get_system_time(); 2556 2557 scan_entry->raw_frame.len = frame_len; 2558 qdf_mem_copy(scan_entry->raw_frame.ptr, 2559 frame, frame_len); 2560 status = util_scan_populate_bcn_ie_list(pdev, scan_entry, &chan_freq, 2561 band_mask); 2562 if (QDF_IS_STATUS_ERROR(status)) { 2563 qdf_mem_free(scan_entry->raw_frame.ptr); 2564 qdf_mem_free(scan_entry); 2565 return QDF_STATUS_E_FAILURE; 2566 } 2567 2568 ssid = (struct ie_ssid *) 2569 scan_entry->ie_list.ssid; 2570 2571 if (ssid && (ssid->ssid_len > WLAN_SSID_MAX_LEN)) { 2572 qdf_mem_free(scan_entry->raw_frame.ptr); 2573 qdf_mem_free(scan_entry); 2574 return QDF_STATUS_E_FAILURE; 2575 } 2576 2577 if (scan_entry->ie_list.p2p) 2578 scan_entry->is_p2p = true; 2579 2580 if (!chan_freq && util_scan_entry_hecap(scan_entry)) { 2581 status = util_scan_get_chan_from_he_6g_params(pdev, scan_entry, 2582 &chan_freq, 2583 &is_6g_dup_bcon, 2584 band_mask, 2585 recv_freq); 2586 if (QDF_IS_STATUS_ERROR(status)) { 2587 qdf_mem_free(scan_entry->raw_frame.ptr); 2588 qdf_mem_free(scan_entry); 2589 return QDF_STATUS_E_FAILURE; 2590 } 2591 } 2592 2593 if (chan_freq) 2594 scan_entry->channel.chan_freq = chan_freq; 2595 2596 /* If no channel info is present in beacon use meta channel */ 2597 if (!scan_entry->channel.chan_freq) { 2598 scan_entry->channel.chan_freq = recv_freq; 2599 } else if (recv_freq != 2600 scan_entry->channel.chan_freq) { 2601 if (!wlan_reg_is_49ghz_freq(scan_entry->channel.chan_freq) && 2602 !is_6g_dup_bcon) 2603 scan_entry->channel_mismatch = true; 2604 } 2605 2606 if (util_scan_is_hidden_ssid(ssid)) { 2607 scan_entry->ie_list.ssid = NULL; 2608 scan_entry->is_hidden_ssid = true; 2609 } else { 2610 qdf_mem_copy(scan_entry->ssid.ssid, 2611 ssid->ssid, ssid->ssid_len); 2612 scan_entry->ssid.length = ssid->ssid_len; 2613 scan_entry->hidden_ssid_timestamp = 2614 scan_entry->scan_entry_time; 2615 } 2616 qdf_mem_copy(&scan_entry->mbssid_info, mbssid_info, 2617 sizeof(scan_entry->mbssid_info)); 2618 2619 scan_entry->phy_mode = util_scan_get_phymode(pdev, scan_entry); 2620 2621 scan_entry->nss = util_scan_scm_calc_nss_supported_by_ap(scan_entry); 2622 scm_fill_adaptive_11r_cap(scan_entry); 2623 util_scan_set_security(scan_entry); 2624 2625 util_scan_scm_update_bss_with_esp_data(scan_entry); 2626 qbss_load = (struct qbss_load_ie *) 2627 util_scan_entry_qbssload(scan_entry); 2628 if (qbss_load) 2629 scan_entry->qbss_chan_load = qbss_load->qbss_chan_load; 2630 2631 scan_node = qdf_mem_malloc_atomic(sizeof(*scan_node)); 2632 if (!scan_node) { 2633 qdf_mem_free(scan_entry->raw_frame.ptr); 2634 qdf_mem_free(scan_entry); 2635 scm_err("failed to allocate memory for scan_node"); 2636 return QDF_STATUS_E_FAILURE; 2637 } 2638 2639 util_scan_update_ml_info(pdev, scan_entry); 2640 2641 scan_node->entry = scan_entry; 2642 qdf_list_insert_front(scan_list, &scan_node->node); 2643 2644 return status; 2645 } 2646 2647 #ifdef WLAN_FEATURE_MBSSID 2648 /* 2649 * util_is_noninh_ie() - find the noninhertance information element 2650 * in the received frame's IE list, so that we can stop inheriting that IE 2651 * in the caller function. 2652 * 2653 * @elem_id: Element ID in the received frame's IE, which is being processed. 2654 * @non_inh_list: pointer to the non inherited list of element IDs or 2655 * list of extension element IDs. 2656 * @len: Length of non inheritance IE list 2657 * 2658 * Return: False if the element ID is not found or else return true 2659 */ 2660 static bool util_is_noninh_ie(uint8_t elem_id, 2661 uint8_t *non_inh_list, 2662 int8_t len) 2663 { 2664 int count; 2665 2666 for (count = 0; count < len; count++) { 2667 if (elem_id == non_inh_list[count]) 2668 return true; 2669 } 2670 2671 return false; 2672 } 2673 2674 /* 2675 * util_scan_find_noninheritance_ie() - find noninheritance information element 2676 * This block of code is to identify if there is any non-inheritance element 2677 * present as part of the nontransmitted BSSID profile. 2678 * @elem_id: element id 2679 * @ies: pointer consisting of IEs 2680 * @len: IE length 2681 * 2682 * Return: NULL if the element ID is not found or if IE pointer is NULL else 2683 * pointer to the first byte of the requested element 2684 */ 2685 static uint8_t 2686 *util_scan_find_noninheritance_ie(uint8_t elem_id, uint8_t *ies, 2687 int32_t len) 2688 { 2689 if (!ies) 2690 return NULL; 2691 2692 while (len >= MIN_IE_LEN && len >= ies[TAG_LEN_POS] + MIN_IE_LEN) { 2693 if ((ies[ID_POS] == elem_id) && 2694 (ies[ELEM_ID_EXTN_POS] == 2695 WLAN_EXTN_ELEMID_NONINHERITANCE)) { 2696 return ies; 2697 } 2698 len -= ies[TAG_LEN_POS] + MIN_IE_LEN; 2699 ies += ies[TAG_LEN_POS] + MIN_IE_LEN; 2700 } 2701 2702 return NULL; 2703 } 2704 #endif 2705 2706 /* 2707 * util_scan_find_ie() - find information element 2708 * @eid: element id 2709 * @ies: pointer consisting of IEs 2710 * @len: IE length 2711 * 2712 * Return: NULL if the element ID is not found or if IE pointer is NULL else 2713 * pointer to the first byte of the requested element 2714 */ 2715 static uint8_t *util_scan_find_ie(uint8_t eid, uint8_t *ies, 2716 int32_t len) 2717 { 2718 if (!ies) 2719 return NULL; 2720 2721 while (len >= 2 && len >= ies[1] + 2) { 2722 if (ies[0] == eid) 2723 return ies; 2724 len -= ies[1] + 2; 2725 ies += ies[1] + 2; 2726 } 2727 2728 return NULL; 2729 } 2730 2731 #ifdef WLAN_FEATURE_MBSSID 2732 static void util_gen_new_bssid(uint8_t *bssid, uint8_t max_bssid, 2733 uint8_t mbssid_index, 2734 uint8_t *new_bssid_addr) 2735 { 2736 uint8_t lsb_n; 2737 int i; 2738 2739 for (i = 0; i < QDF_MAC_ADDR_SIZE; i++) 2740 new_bssid_addr[i] = bssid[i]; 2741 2742 lsb_n = new_bssid_addr[5] & ((1 << max_bssid) - 1); 2743 2744 new_bssid_addr[5] &= ~((1 << max_bssid) - 1); 2745 new_bssid_addr[5] |= (lsb_n + mbssid_index) % (1 << max_bssid); 2746 } 2747 2748 /* 2749 * util_parse_noninheritance_list() - This block of code will be executed only 2750 * if there is a valid non inheritance IE present in the nontx profile. 2751 * Host need not inherit those list of element IDs and list of element ID 2752 * extensions from the transmitted BSSID profile. 2753 * Since non-inheritance element is an element ID extension, it should 2754 * be part of extension element. So first we need to find if there are 2755 * any extension element present in the nontransmitted BSSID profile. 2756 * @extn_elem: If valid, it points to the element ID field of 2757 * extension element tag in the nontransmitted BSSID profile. 2758 * It may or may not have non inheritance tag present. 2759 * _____________________________________________ 2760 * | | | |List of|List of | 2761 * | Element |Length |Element|Element|Element ID | 2762 * | ID | |ID extn| IDs |Extension | 2763 * |_________|_______|_______|_______|___________| 2764 * List of Element IDs: 2765 * __________________ 2766 * | | | 2767 * | Length |Element | 2768 * | |ID List | 2769 * |_________|________| 2770 * List of Element ID Extensions: 2771 * __________________________ 2772 * | | | 2773 * | Length |Element ID | 2774 * | |extension List | 2775 * |_________|________________| 2776 * @elem_list: Element ID list 2777 * @extn_elem_list: Element ID exiension list 2778 * @non_inheritance_ie: Non inheritance IE information 2779 */ 2780 2781 static void util_parse_noninheritance_list(uint8_t *extn_elem, 2782 uint8_t **elem_list, 2783 uint8_t **extn_elem_list, 2784 struct non_inheritance_ie *ninh) 2785 { 2786 int8_t extn_rem_len = 0; 2787 2788 if (extn_elem[ELEM_ID_LIST_LEN_POS] < extn_elem[TAG_LEN_POS]) { 2789 /* 2790 * extn_rem_len represents the number of bytes after 2791 * the length subfield of list of Element IDs. 2792 * So here, extn_rem_len should be equal to 2793 * Element ID list + Length subfield of Element ID 2794 * extension list + Element ID extension list. 2795 * 2796 * Here we have taken two pointers pointing to the 2797 * element ID list and element ID extension list 2798 * which we will use to detect the same elements 2799 * in the transmitted BSSID profile and choose not 2800 * to inherit those elements while constructing the 2801 * frame for nontransmitted BSSID profile. 2802 */ 2803 extn_rem_len = extn_elem[TAG_LEN_POS] - MIN_IE_LEN; 2804 ninh->non_inherit = true; 2805 2806 if (extn_rem_len && extn_elem[ELEM_ID_LIST_LEN_POS]) { 2807 if (extn_rem_len >= extn_elem[ELEM_ID_LIST_LEN_POS]) { 2808 ninh->list_len = 2809 extn_elem[ELEM_ID_LIST_LEN_POS]; 2810 *elem_list = extn_elem + ELEM_ID_LIST_POS; 2811 extn_rem_len -= ninh->list_len; 2812 } else { 2813 /* 2814 * Corrupt frame. length subfield of 2815 * element ID list is greater than 2816 * what it should be. Go ahead with 2817 * frame generation but do not honour 2818 * the non inheritance part. Also, mark 2819 * the element ID in subcopy as 0, so 2820 * that this element info will not 2821 * be copied. 2822 */ 2823 ninh->non_inherit = false; 2824 extn_elem[0] = 0; 2825 } 2826 } 2827 2828 extn_rem_len--; 2829 if (extn_rem_len > 0) { 2830 if (!ninh->list_len) { 2831 ninh->extn_len = 2832 extn_elem[ELEM_ID_LIST_LEN_POS + 1]; 2833 } else { 2834 ninh->extn_len = 2835 extn_elem[ELEM_ID_LIST_POS + 2836 ninh->list_len]; 2837 } 2838 2839 if (extn_rem_len != ninh->extn_len) { 2840 /* 2841 * Corrupt frame. length subfield of 2842 * element ID extn list is not 2843 * what it should be. Go ahead with 2844 * frame generation but do not honour 2845 * the non inheritance part. Also, mark 2846 * the element ID in subcopy as 0, so 2847 * that this element info will not 2848 * be copied. 2849 */ 2850 ninh->non_inherit = false; 2851 extn_elem[0] = 0; 2852 } 2853 2854 if (ninh->extn_len) { 2855 *extn_elem_list = 2856 (extn_elem + ninh->list_len + 2857 ELEM_ID_LIST_POS + 1); 2858 } 2859 } 2860 } 2861 } 2862 2863 #ifdef WLAN_FEATURE_11BE_MLO 2864 /** 2865 * util_handle_rnr_ie_for_mbssid() - parse and modify RNR IE for MBSSID feature 2866 * @rnr: The pointer to RNR IE 2867 * @bssid_index: BSSID index from MBSSID index IE 2868 * @pos: The buffer pointer to save the transformed RNR IE, caller is expected 2869 * to supply a buffer that is at least as big as @rnr 2870 * 2871 * Per the description about Neighbor AP Information field about MLD 2872 * parameters subfield in section 9.4.2.170.2 of Draft P802.11be_D1.4. 2873 * If the reported AP is affiliated with the same MLD of the reporting AP, 2874 * the TBTT information is skipped; If the reported AP is affiliated with 2875 * the same MLD of the nontransmitted BSSID, the TBTT information is 2876 * copied and the MLD ID is changed to 0. 2877 * 2878 * Return: Length of the element written to @pos 2879 */ 2880 static int util_handle_rnr_ie_for_mbssid(const uint8_t *rnr, 2881 uint8_t bssid_index, uint8_t *pos) 2882 { 2883 size_t rnr_len; 2884 const uint8_t *data, *rnr_end; 2885 uint8_t *rnr_new; 2886 struct neighbor_ap_info_field *neighbor_ap_info; 2887 struct rnr_mld_info *mld_param; 2888 uint8_t tbtt_type, tbtt_len, tbtt_count; 2889 uint8_t mld_pos, mld_id; 2890 int32_t i, copy_len; 2891 /* The count of TBTT info field whose MLD ID equals to 0 in a neighbor 2892 * AP information field. 2893 */ 2894 uint32_t tbtt_info_field_count; 2895 /* The total bytes of TBTT info fields whose MLD ID equals to 0 in 2896 * current RNR IE. 2897 */ 2898 uint32_t tbtt_info_field_len = 0; 2899 uint8_t nbr_ap_info_len = sizeof(struct neighbor_ap_info_field); 2900 2901 rnr_len = rnr[TAG_LEN_POS]; 2902 rnr_end = rnr + rnr_len + MIN_IE_LEN; 2903 rnr_new = pos; 2904 qdf_mem_copy(pos, rnr, MIN_IE_LEN); 2905 pos += MIN_IE_LEN; 2906 2907 data = rnr + PAYLOAD_START_POS; 2908 while (data < rnr_end) { 2909 neighbor_ap_info = (struct neighbor_ap_info_field *)data; 2910 tbtt_count = neighbor_ap_info->tbtt_header.tbtt_info_count; 2911 tbtt_len = neighbor_ap_info->tbtt_header.tbtt_info_length; 2912 tbtt_type = neighbor_ap_info->tbtt_header.tbbt_info_fieldtype; 2913 scm_debug("channel number %d, op class %d, bssid_index %d", 2914 neighbor_ap_info->channel_number, 2915 neighbor_ap_info->operting_class, bssid_index); 2916 scm_debug("tbtt_count %d, tbtt_length %d, tbtt_type %d", 2917 tbtt_count, tbtt_len, tbtt_type); 2918 2919 copy_len = tbtt_len * (tbtt_count + 1) + 2920 nbr_ap_info_len; 2921 if (data + copy_len > rnr_end) 2922 return 0; 2923 2924 if (tbtt_len >= 2925 TBTT_NEIGHBOR_AP_BSSID_S_SSID_BSS_PARAM_20MHZ_PSD_MLD_PARAM) 2926 mld_pos = 2927 TBTT_NEIGHBOR_AP_BSSID_S_SSID_BSS_PARAM_20MHZ_PSD; 2928 else 2929 mld_pos = 0; 2930 2931 /* If MLD params do not exist, copy this neighbor AP 2932 * information field. 2933 * Per Draft P802.11be_D1.4, tbtt_type value 1, 2 and 3 2934 * are reserved, 2935 */ 2936 if (mld_pos == 0 || tbtt_type != 0) { 2937 scm_debug("no MLD params, tbtt_type %d", tbtt_type); 2938 qdf_mem_copy(pos, data, copy_len); 2939 pos += copy_len; 2940 data += copy_len; 2941 continue; 2942 } 2943 2944 qdf_mem_copy(pos, data, nbr_ap_info_len); 2945 neighbor_ap_info = (struct neighbor_ap_info_field *)pos; 2946 pos += nbr_ap_info_len; 2947 data += nbr_ap_info_len; 2948 2949 tbtt_info_field_count = 0; 2950 for (i = 0; i < tbtt_count + 1; i++) { 2951 mld_param = (struct rnr_mld_info *)&data[mld_pos]; 2952 mld_id = mld_param->mld_id; 2953 2954 /* Refer to Draft P802.11be_D1.4 2955 * 9.4.2.170.2 Neighbor AP Information field about 2956 * MLD parameters subfield 2957 */ 2958 if (mld_id == 0) { 2959 /* Skip this TBTT information since this 2960 * reported AP is affiliated with the same MLD 2961 * of the reporting AP who sending the frame 2962 * carrying this element. 2963 */ 2964 tbtt_info_field_len += tbtt_len; 2965 data += tbtt_len; 2966 tbtt_info_field_count++; 2967 } else if (mld_id == bssid_index) { 2968 /* Copy this TBTT information and change MLD 2969 * to 0 as this reported AP is affiliated with 2970 * the same MLD of the nontransmitted BSSID. 2971 */ 2972 qdf_mem_copy(pos, data, tbtt_len); 2973 mld_param = 2974 (struct rnr_mld_info *)&pos[mld_pos]; 2975 scm_debug("change MLD ID from %d to 0", 2976 mld_param->mld_id); 2977 mld_param->mld_id = 0; 2978 data += tbtt_len; 2979 pos += tbtt_len; 2980 } else { 2981 qdf_mem_copy(pos, data, tbtt_len); 2982 data += tbtt_len; 2983 pos += tbtt_len; 2984 } 2985 } 2986 2987 scm_debug("skip %d neighbor info", tbtt_info_field_count); 2988 if (tbtt_info_field_count == (tbtt_count + 1)) { 2989 /* If all the TBTT information are skipped, then also 2990 * revert the neighbor AP info which has been copied. 2991 */ 2992 pos -= nbr_ap_info_len; 2993 tbtt_info_field_len += nbr_ap_info_len; 2994 } else { 2995 neighbor_ap_info->tbtt_header.tbtt_info_count -= 2996 tbtt_info_field_count; 2997 } 2998 } 2999 3000 rnr_new[TAG_LEN_POS] = rnr_len - tbtt_info_field_len; 3001 if (rnr_new[TAG_LEN_POS] > 0) 3002 rnr_len = rnr_new[TAG_LEN_POS] + MIN_IE_LEN; 3003 else 3004 rnr_len = 0; 3005 3006 return rnr_len; 3007 } 3008 #else 3009 static int util_handle_rnr_ie_for_mbssid(const uint8_t *rnr, 3010 uint8_t bssid_index, uint8_t *pos) 3011 { 3012 return 0; 3013 } 3014 #endif 3015 3016 #ifdef WLAN_FEATURE_ACTION_OUI 3017 static uint8_t *util_copy_reporting_ap_vendor_ies(struct wlan_objmgr_psoc *psoc, 3018 const uint8_t *ie, 3019 uint32_t ie_len, 3020 uint8_t *buf_ie) 3021 { 3022 struct action_oui_search_attr attr; 3023 enum action_oui_id oui_id = ACTION_OUI_RESTRICT_MAX_MLO_LINKS; 3024 3025 attr.ie_data = (uint8_t *)ie; 3026 attr.ie_length = ie_len; 3027 3028 if (wlan_action_oui_search(psoc, &attr, oui_id)) { 3029 qdf_mem_copy(buf_ie, ie, ie_len); 3030 buf_ie += ie_len; 3031 } 3032 3033 return buf_ie; 3034 } 3035 #else 3036 static inline uint8_t * 3037 util_copy_reporting_ap_vendor_ies(struct wlan_objmgr_psoc *psoc, 3038 const uint8_t *ie, uint32_t ie_len, 3039 uint8_t *buf_ie) 3040 { 3041 return buf_ie; 3042 } 3043 #endif 3044 3045 static uint32_t util_gen_new_ie(struct wlan_objmgr_pdev *pdev, 3046 uint8_t *ie, uint32_t ielen, 3047 uint8_t *subelement, 3048 size_t subie_len, uint8_t *new_ie, 3049 uint8_t bssid_index) 3050 { 3051 struct wlan_objmgr_psoc *psoc; 3052 uint8_t *pos, *tmp; 3053 const uint8_t *tmp_old, *tmp_new; 3054 uint8_t *sub_copy, *extn_elem = NULL; 3055 struct non_inheritance_ie ninh = {0}; 3056 uint8_t *elem_list = NULL, *extn_elem_list = NULL; 3057 size_t tmp_rem_len; 3058 3059 psoc = wlan_pdev_get_psoc(pdev); 3060 if (!psoc) { 3061 scm_err("NULL PSOC"); 3062 return 0; 3063 } 3064 3065 /* copy subelement as we need to change its content to 3066 * mark an ie after it is processed. 3067 */ 3068 sub_copy = qdf_mem_malloc(subie_len); 3069 if (!sub_copy) 3070 return 0; 3071 qdf_mem_copy(sub_copy, subelement, subie_len); 3072 3073 pos = &new_ie[0]; 3074 3075 /* new ssid */ 3076 tmp_new = util_scan_find_ie(WLAN_ELEMID_SSID, sub_copy, subie_len); 3077 if (tmp_new) { 3078 scm_debug(" SSID " QDF_SSID_FMT, 3079 QDF_SSID_REF(tmp_new[1], 3080 &tmp_new[PAYLOAD_START_POS])); 3081 if ((pos + tmp_new[1] + MIN_IE_LEN) <= 3082 (new_ie + ielen)) { 3083 qdf_mem_copy(pos, tmp_new, 3084 (tmp_new[1] + MIN_IE_LEN)); 3085 pos += (tmp_new[1] + MIN_IE_LEN); 3086 } 3087 } 3088 3089 extn_elem = util_scan_find_noninheritance_ie(WLAN_ELEMID_EXTN_ELEM, 3090 sub_copy, subie_len); 3091 3092 if (extn_elem && extn_elem[TAG_LEN_POS]) { 3093 util_parse_noninheritance_list(extn_elem, &elem_list, 3094 &extn_elem_list, &ninh); 3095 } 3096 3097 /* go through IEs in ie (skip SSID) and subelement, 3098 * merge them into new_ie 3099 */ 3100 tmp_old = util_scan_find_ie(WLAN_ELEMID_SSID, ie, ielen); 3101 tmp_old = (tmp_old) ? tmp_old + tmp_old[1] + MIN_IE_LEN : ie; 3102 3103 while (((tmp_old + tmp_old[1] + MIN_IE_LEN) - ie) <= ielen) { 3104 ninh.non_inh_ie_found = 0; 3105 if (ninh.non_inherit) { 3106 if (ninh.list_len) { 3107 ninh.non_inh_ie_found = 3108 util_is_noninh_ie(tmp_old[0], 3109 elem_list, 3110 ninh.list_len); 3111 } 3112 3113 if (!ninh.non_inh_ie_found && 3114 ninh.extn_len && 3115 (tmp_old[0] == WLAN_ELEMID_EXTN_ELEM)) { 3116 ninh.non_inh_ie_found = 3117 util_is_noninh_ie(tmp_old[2], 3118 extn_elem_list, 3119 ninh.extn_len); 3120 } 3121 } 3122 3123 if (ninh.non_inh_ie_found || (tmp_old[0] == 0)) { 3124 tmp_old += tmp_old[1] + MIN_IE_LEN; 3125 continue; 3126 } 3127 3128 tmp = (uint8_t *)util_scan_find_ie(tmp_old[0], sub_copy, 3129 subie_len); 3130 if (!tmp) { 3131 /* ie in old ie but not in subelement */ 3132 if (tmp_old[0] == WLAN_ELEMID_REDUCED_NEIGHBOR_REPORT) { 3133 /* handle rnr ie for mbssid*/ 3134 pos += 3135 util_handle_rnr_ie_for_mbssid(tmp_old, 3136 bssid_index, 3137 pos); 3138 } else if (tmp_old[0] != WLAN_ELEMID_MULTIPLE_BSSID) { 3139 if ((pos + tmp_old[1] + MIN_IE_LEN) <= 3140 (new_ie + ielen)) { 3141 qdf_mem_copy(pos, tmp_old, 3142 (tmp_old[1] + 3143 MIN_IE_LEN)); 3144 pos += tmp_old[1] + MIN_IE_LEN; 3145 } 3146 } 3147 } else { 3148 /* ie in transmitting ie also in subelement, 3149 * copy from subelement and flag the ie in subelement 3150 * as copied (by setting eid field to 0xff). 3151 * To determine if the vendor ies are same: 3152 * 1. For Cisco OUI, compare only OUI + type 3153 * 2. For other OUI, compare OUI + type + subType 3154 */ 3155 tmp_rem_len = subie_len - (tmp - sub_copy); 3156 if (tmp_old[0] == WLAN_ELEMID_VENDOR && 3157 tmp_rem_len >= MIN_VENDOR_TAG_LEN) { 3158 /* 3159 * In order to identify few Vendor APs the 3160 * generated frame should contain the reporting 3161 * APs matching VSIE or else the entry generated 3162 * will not have this VSIE and logic kept to 3163 * take certain action on specific Vendor APs 3164 * will fail. 3165 */ 3166 pos = util_copy_reporting_ap_vendor_ies(psoc, 3167 tmp_old, 3168 tmp_old[1] + MIN_IE_LEN, 3169 pos); 3170 /* If Vendor IE also presents in STA profile, 3171 * then ignore the Vendor IE which is for 3172 * reporting STA. It only needs to copy Vendor 3173 * IE from STA profile for reported BSSID. 3174 * The copy happens when going through the 3175 * remaining IEs. 3176 */ 3177 } else if (tmp_old[0] == WLAN_ELEMID_EXTN_ELEM) { 3178 if (tmp_old[PAYLOAD_START_POS] == 3179 tmp[PAYLOAD_START_POS]) { 3180 /* same ie, copy from subelement */ 3181 if ((pos + tmp[1] + MIN_IE_LEN) <= 3182 (new_ie + ielen)) { 3183 qdf_mem_copy(pos, tmp, 3184 tmp[1] + 3185 MIN_IE_LEN); 3186 pos += tmp[1] + MIN_IE_LEN; 3187 tmp[0] = 0; 3188 } 3189 } else { 3190 if ((pos + tmp_old[1] + MIN_IE_LEN) <= 3191 (new_ie + ielen)) { 3192 qdf_mem_copy(pos, tmp_old, 3193 tmp_old[1] + 3194 MIN_IE_LEN); 3195 pos += tmp_old[1] + 3196 MIN_IE_LEN; 3197 } 3198 } 3199 3200 } else { 3201 /* copy ie from subelement into new ie */ 3202 if ((pos + tmp[1] + MIN_IE_LEN) <= 3203 (new_ie + ielen)) { 3204 qdf_mem_copy(pos, tmp, 3205 tmp[1] + MIN_IE_LEN); 3206 pos += tmp[1] + MIN_IE_LEN; 3207 tmp[0] = 0; 3208 } 3209 } 3210 } 3211 3212 if (((tmp_old + tmp_old[1] + MIN_IE_LEN) - ie) >= ielen) 3213 break; 3214 3215 tmp_old += tmp_old[1] + MIN_IE_LEN; 3216 } 3217 3218 /* go through subelement again to check if there is any ie not 3219 * copied to new ie, skip ssid, capability, bssid-index ie 3220 */ 3221 tmp_new = sub_copy; 3222 while ((subie_len > 0) && 3223 (((tmp_new + tmp_new[1] + MIN_IE_LEN) - sub_copy) <= 3224 subie_len)) { 3225 if (!(tmp_new[0] == WLAN_ELEMID_NONTX_BSSID_CAP || 3226 tmp_new[0] == WLAN_ELEMID_SSID || 3227 tmp_new[0] == WLAN_ELEMID_MULTI_BSSID_IDX || 3228 ((tmp_new[0] == WLAN_ELEMID_EXTN_ELEM) && 3229 (tmp_new[2] == WLAN_EXTN_ELEMID_NONINHERITANCE)))) { 3230 if ((pos + tmp_new[1] + MIN_IE_LEN) <= 3231 (new_ie + ielen)) { 3232 qdf_mem_copy(pos, tmp_new, 3233 tmp_new[1] + MIN_IE_LEN); 3234 pos += tmp_new[1] + MIN_IE_LEN; 3235 } 3236 } 3237 if (((tmp_new + tmp_new[1] + MIN_IE_LEN) - sub_copy) >= 3238 (subie_len - 1)) 3239 break; 3240 tmp_new += tmp_new[1] + MIN_IE_LEN; 3241 } 3242 3243 qdf_mem_free(sub_copy); 3244 3245 if (pos > new_ie) 3246 return pos - new_ie; 3247 else 3248 return 0; 3249 } 3250 3251 static enum nontx_profile_reasoncode 3252 util_handle_nontx_prof(uint8_t *mbssid_elem, uint8_t *subelement, 3253 uint8_t *next_subelement, 3254 struct scan_mbssid_info *mbssid_info, 3255 char *bssid, char *new_bssid) 3256 { 3257 uint8_t *mbssid_index_ie; 3258 uint32_t prof_len; 3259 3260 prof_len = subelement[TAG_LEN_POS]; 3261 /* 3262 * If we are executing the split portion of the nontx 3263 * profile present in the subsequent MBSSID, then there 3264 * is no need of any sanity check for valid BSS profile 3265 */ 3266 3267 if (mbssid_info->split_prof_continue) { 3268 if ((subelement[ID_POS] != 0) || 3269 (subelement[TAG_LEN_POS] < SPLIT_PROF_DATA_LEAST_LEN)) { 3270 return INVALID_SPLIT_PROF; 3271 } 3272 } else { 3273 if ((subelement[ID_POS] != 0) || 3274 (subelement[TAG_LEN_POS] < VALID_ELEM_LEAST_LEN)) { 3275 /* not a valid BSS profile */ 3276 return INVALID_NONTX_PROF; 3277 } 3278 } 3279 3280 if (mbssid_info->split_profile) { 3281 if (next_subelement[PAYLOAD_START_POS] != 3282 WLAN_ELEMID_NONTX_BSSID_CAP) { 3283 mbssid_info->prof_residue = true; 3284 } 3285 } 3286 3287 if (!mbssid_info->split_prof_continue && 3288 ((subelement[PAYLOAD_START_POS] != WLAN_ELEMID_NONTX_BSSID_CAP) || 3289 (subelement[NONTX_BSSID_CAP_TAG_LEN_POS] != CAP_INFO_LEN))) { 3290 /* The first element within the Nontransmitted 3291 * BSSID Profile is not the Nontransmitted 3292 * BSSID Capability element. 3293 */ 3294 return INVALID_NONTX_PROF; 3295 } 3296 3297 /* found a Nontransmitted BSSID Profile */ 3298 mbssid_index_ie = 3299 util_scan_find_ie(WLAN_ELEMID_MULTI_BSSID_IDX, 3300 (subelement + PAYLOAD_START_POS), prof_len); 3301 3302 if (!mbssid_index_ie) { 3303 if (!mbssid_info->prof_residue) 3304 return INVALID_NONTX_PROF; 3305 3306 mbssid_info->skip_bssid_copy = true; 3307 } else if ((mbssid_index_ie[TAG_LEN_POS] < 1) || 3308 (mbssid_index_ie[BSS_INDEX_POS] == 0)) { 3309 /* No valid Multiple BSSID-Index element */ 3310 return INVALID_NONTX_PROF; 3311 } 3312 3313 if (!mbssid_info->skip_bssid_copy) { 3314 qdf_mem_copy(mbssid_info->trans_bssid, 3315 bssid, QDF_MAC_ADDR_SIZE); 3316 mbssid_info->profile_num = 3317 mbssid_index_ie[BSS_INDEX_POS]; 3318 util_gen_new_bssid(bssid, 3319 mbssid_elem[MBSSID_INDICATOR_POS], 3320 mbssid_index_ie[BSS_INDEX_POS], 3321 new_bssid); 3322 qdf_mem_copy(mbssid_info->non_trans_bssid, new_bssid, 3323 QDF_MAC_ADDR_SIZE); 3324 } 3325 /* In single MBSS IE, there could be subelement holding 3326 * remaining vendor IEs of non tx profile from last MBSS IE 3327 * [split profile] and new non tx profile, hence reset 3328 * skip_bssid_copy flag after each subelement processing 3329 */ 3330 mbssid_info->skip_bssid_copy = false; 3331 return VALID_NONTX_PROF; 3332 } 3333 3334 /* 3335 * What's split profile: 3336 * If any nontransmitted BSSID profile is fragmented across 3337 * multiple MBSSID elements, then it is called split profile. 3338 * For a split profile to exist we need to have at least two 3339 * MBSSID elements as part of the RX beacon or probe response 3340 * Hence, first we need to identify the next MBSSID element 3341 * and check for the 5th bit from the starting of the next 3342 * MBSSID IE and if it does not have Nontransmitted BSSID 3343 * capability element, then it's a split profile case. 3344 */ 3345 static bool util_scan_is_split_prof_found(uint8_t *next_elem, 3346 uint8_t *ie, uint32_t ielen) 3347 { 3348 uint8_t *next_mbssid_elem; 3349 3350 if (next_elem[0] == WLAN_ELEMID_MULTIPLE_BSSID) { 3351 if ((next_elem[TAG_LEN_POS] >= VALID_ELEM_LEAST_LEN) && 3352 (next_elem[SUBELEM_DATA_POS_FROM_MBSSID] != 3353 WLAN_ELEMID_NONTX_BSSID_CAP)) { 3354 return true; 3355 } 3356 } else { 3357 next_mbssid_elem = 3358 util_scan_find_ie(WLAN_ELEMID_MULTIPLE_BSSID, 3359 next_elem, 3360 ielen - (next_elem - ie)); 3361 if (!next_mbssid_elem) 3362 return false; 3363 3364 if ((next_mbssid_elem[TAG_LEN_POS] >= VALID_ELEM_LEAST_LEN) && 3365 (next_mbssid_elem[SUBELEM_DATA_POS_FROM_MBSSID] != 3366 WLAN_ELEMID_NONTX_BSSID_CAP)) { 3367 return true; 3368 } 3369 } 3370 3371 return false; 3372 } 3373 3374 static QDF_STATUS util_scan_parse_mbssid(struct wlan_objmgr_pdev *pdev, 3375 uint8_t *frame, qdf_size_t frame_len, 3376 uint32_t frm_subtype, 3377 struct mgmt_rx_event_params *rx_param, 3378 qdf_list_t *scan_list) 3379 { 3380 struct wlan_scan_obj *scan_obj; 3381 struct wlan_bcn_frame *bcn; 3382 struct wlan_frame_hdr *hdr; 3383 struct scan_mbssid_info mbssid_info = {0}; 3384 QDF_STATUS status; 3385 uint8_t *pos, *subelement, *next_elem; 3386 uint8_t *mbssid_elem; 3387 uint32_t subie_len, new_ie_len, ielen; 3388 uint8_t *next_subelement = NULL; 3389 uint8_t new_bssid[QDF_MAC_ADDR_SIZE], bssid[QDF_MAC_ADDR_SIZE]; 3390 uint8_t *new_ie, *split_prof_start = NULL, *split_prof_end = NULL; 3391 uint8_t *ie, *new_frame = NULL; 3392 int new_frame_len = 0, split_prof_len = 0; 3393 enum nontx_profile_reasoncode retval; 3394 uint8_t *nontx_profile = NULL; 3395 3396 scan_obj = wlan_pdev_get_scan_obj(pdev); 3397 if (!scan_obj) 3398 return QDF_STATUS_E_INVAL; 3399 3400 hdr = (struct wlan_frame_hdr *)frame; 3401 bcn = (struct wlan_bcn_frame *)(frame + sizeof(struct wlan_frame_hdr)); 3402 ie = (uint8_t *)&bcn->ie; 3403 ielen = (uint16_t)(frame_len - 3404 sizeof(struct wlan_frame_hdr) - 3405 offsetof(struct wlan_bcn_frame, ie)); 3406 qdf_mem_copy(bssid, hdr->i_addr3, QDF_MAC_ADDR_SIZE); 3407 3408 if (!util_scan_find_ie(WLAN_ELEMID_MULTIPLE_BSSID, ie, ielen)) 3409 return QDF_STATUS_E_FAILURE; 3410 3411 pos = ie; 3412 3413 new_ie = qdf_mem_malloc(ielen); 3414 if (!new_ie) 3415 return QDF_STATUS_E_NOMEM; 3416 3417 while (pos < (ie + ielen + MIN_IE_LEN)) { 3418 mbssid_elem = 3419 util_scan_find_ie(WLAN_ELEMID_MULTIPLE_BSSID, pos, 3420 ielen - (pos - ie)); 3421 if (!mbssid_elem) 3422 break; 3423 3424 mbssid_info.profile_count = 3425 (1 << mbssid_elem[MBSSID_INDICATOR_POS]); 3426 3427 next_elem = 3428 mbssid_elem + mbssid_elem[TAG_LEN_POS] + MIN_IE_LEN; 3429 3430 /* Skip Element ID, Len, MaxBSSID Indicator */ 3431 if (!mbssid_info.split_profile && 3432 (mbssid_elem[TAG_LEN_POS] < VALID_ELEM_LEAST_LEN)) { 3433 break; 3434 } 3435 3436 /* 3437 * Find if the next IE is MBSSID, if not, then scan through 3438 * the IE list and find the next MBSSID tag, if present. 3439 * Once we find the MBSSID tag, check if this MBSSID tag has 3440 * the other fragmented part of the non Tx profile. 3441 */ 3442 3443 mbssid_info.split_profile = 3444 util_scan_is_split_prof_found(next_elem, ie, ielen); 3445 3446 for (subelement = mbssid_elem + SUBELEMENT_START_POS; 3447 subelement < (next_elem - 1); 3448 subelement += MIN_IE_LEN + subelement[TAG_LEN_POS]) { 3449 subie_len = subelement[TAG_LEN_POS]; 3450 3451 /* 3452 * if prof_residue is true, that means we are 3453 * in the continuation of the fragmented profile part, 3454 * present in the next MBSSD IE else this profile 3455 * is a non fragmented non tx BSSID profile. 3456 */ 3457 3458 if (mbssid_info.prof_residue) 3459 mbssid_info.split_prof_continue = true; 3460 else 3461 mbssid_info.split_prof_continue = false; 3462 3463 if (subie_len > MAX_SUBELEM_LEN) { 3464 scm_debug_rl("Corrupt frame with subie_len: %d " 3465 "split_prof_continue: %d,prof_residue: %d", 3466 subie_len, 3467 mbssid_info.split_prof_continue, 3468 mbssid_info.prof_residue); 3469 if (mbssid_info.split_prof_continue) { 3470 qdf_mem_free(split_prof_start); 3471 split_prof_start = NULL; 3472 } 3473 3474 qdf_mem_free(new_ie); 3475 return QDF_STATUS_E_INVAL; 3476 } 3477 3478 if ((next_elem - subelement) < 3479 (MIN_IE_LEN + subie_len)) 3480 break; 3481 3482 next_subelement = subelement + subie_len + MIN_IE_LEN; 3483 retval = util_handle_nontx_prof(mbssid_elem, subelement, 3484 next_subelement, 3485 &mbssid_info, 3486 bssid, new_bssid); 3487 3488 if (retval == INVALID_SPLIT_PROF) { 3489 scm_debug_rl("Corrupt frame with ID_POS: %d,TAG_LEN_POS: %d", 3490 subelement[ID_POS], 3491 subelement[TAG_LEN_POS]); 3492 qdf_mem_free(split_prof_start); 3493 split_prof_start = NULL; 3494 qdf_mem_free(new_ie); 3495 return QDF_STATUS_E_INVAL; 3496 } else if (retval == INVALID_NONTX_PROF) { 3497 continue; 3498 } 3499 3500 /* 3501 * Merging parts of nontx profile- 3502 * Just for understanding, let's make an assumption 3503 * that nontx profile is fragmented across MBSSIE1 3504 * and MBSSIE2. 3505 * mbssid_info.prof_residue being set indicates 3506 * that the ongoing nontx profile is part of split 3507 * profile, whose other fragmented part is present 3508 * in MBSSIE2. 3509 * So once prof_residue is set, we need to 3510 * identify whether we are accessing the split 3511 * profile in MBSSIE1 or MBSSIE2. 3512 * If we are in MBSSIE1, then copy the part of split 3513 * profile from MBSSIE1 into a new buffer and then 3514 * move to the next part of the split profile which 3515 * is present in MBSSIE2 and append that part into 3516 * the new buffer. 3517 * Once the full profile is accumulated, go ahead with 3518 * the ie generation and length calculation of the 3519 * new frame. 3520 */ 3521 3522 if (mbssid_info.prof_residue) { 3523 if (!mbssid_info.split_prof_continue) { 3524 split_prof_start = 3525 qdf_mem_malloc(ielen); 3526 if (!split_prof_start) { 3527 scm_err_rl("Malloc failed"); 3528 qdf_mem_free(new_ie); 3529 return QDF_STATUS_E_NOMEM; 3530 } 3531 3532 qdf_mem_copy(split_prof_start, 3533 subelement, 3534 (subie_len + 3535 MIN_IE_LEN)); 3536 split_prof_end = (split_prof_start + 3537 subie_len + 3538 MIN_IE_LEN); 3539 break; 3540 } 3541 3542 /* 3543 * Currently we are accessing other part of the 3544 * split profile present in the subsequent 3545 * MBSSIE. There is a possibility that one 3546 * non tx profile is spread across more than 3547 * two MBSSID tag as well. This code will 3548 * handle such scenario. 3549 */ 3550 3551 if (split_prof_end) { 3552 qdf_mem_copy(split_prof_end, 3553 (subelement + MIN_IE_LEN), 3554 subie_len); 3555 split_prof_end += subie_len; 3556 } 3557 3558 /* 3559 * When to stop the process of accumulating 3560 * parts of split profile, is decided by 3561 * mbssid_info.prof_residue. prof_residue 3562 * could be made false if there is not any 3563 * continuation of the split profile. 3564 * which could be identified by two factors 3565 * 1. By checking if the next MBSSIE's first 3566 * non tx profile is not a fragmented one or 3567 * 2. there is a probability that first 3568 * subelement of MBSSIE2 is end if split 3569 * profile and the next subelement of MBSSIE2 3570 * is a non split one. 3571 */ 3572 3573 if (!mbssid_info.split_profile || 3574 (next_subelement[PAYLOAD_START_POS] == 3575 WLAN_ELEMID_NONTX_BSSID_CAP)) { 3576 mbssid_info.prof_residue = false; 3577 } 3578 3579 /* 3580 * Until above mentioned conditions are met, 3581 * we need to iterate and keep accumulating 3582 * the split profile contents. 3583 */ 3584 3585 if (mbssid_info.prof_residue) 3586 break; 3587 3588 if (split_prof_end) { 3589 split_prof_len = 3590 (split_prof_end - 3591 split_prof_start - MIN_IE_LEN); 3592 } 3593 } 3594 3595 if (mbssid_info.split_prof_continue) { 3596 nontx_profile = split_prof_start; 3597 subie_len = split_prof_len; 3598 } else { 3599 nontx_profile = subelement; 3600 } 3601 3602 new_ie_len = 3603 util_gen_new_ie(pdev, ie, ielen, 3604 (nontx_profile + 3605 PAYLOAD_START_POS), 3606 subie_len, new_ie, 3607 mbssid_info.profile_num); 3608 3609 if (!new_ie_len) { 3610 if (mbssid_info.split_prof_continue) { 3611 qdf_mem_free(split_prof_start); 3612 split_prof_start = NULL; 3613 split_prof_end = NULL; 3614 } 3615 continue; 3616 } 3617 3618 new_frame_len = frame_len - ielen + new_ie_len; 3619 3620 if (new_frame_len < 0 || new_frame_len > frame_len) { 3621 if (mbssid_info.split_prof_continue) { 3622 qdf_mem_free(split_prof_start); 3623 split_prof_start = NULL; 3624 } 3625 qdf_mem_free(new_ie); 3626 scm_debug_rl("Invalid frame:Stop MBSSIE parsing, Frame_len: %zu " 3627 "ielen:%u,new_ie_len:%u", 3628 frame_len, ielen, new_ie_len); 3629 return QDF_STATUS_E_INVAL; 3630 } 3631 3632 new_frame = qdf_mem_malloc(new_frame_len); 3633 if (!new_frame) { 3634 if (mbssid_info.split_prof_continue) { 3635 qdf_mem_free(split_prof_start); 3636 split_prof_start = NULL; 3637 } 3638 qdf_mem_free(new_ie); 3639 scm_err_rl("Malloc for new_frame failed"); 3640 scm_err_rl("split_prof_continue: %d", 3641 mbssid_info.split_prof_continue); 3642 return QDF_STATUS_E_NOMEM; 3643 } 3644 3645 /* 3646 * Copy the header(24byte), timestamp(8 byte), 3647 * beaconinterval(2byte) and capability(2byte) 3648 */ 3649 qdf_mem_copy(new_frame, frame, FIXED_LENGTH); 3650 /* Copy the new ie generated from MBSSID profile*/ 3651 hdr = (struct wlan_frame_hdr *)new_frame; 3652 qdf_mem_copy(hdr->i_addr2, new_bssid, 3653 QDF_MAC_ADDR_SIZE); 3654 qdf_mem_copy(hdr->i_addr3, new_bssid, 3655 QDF_MAC_ADDR_SIZE); 3656 bcn = (struct wlan_bcn_frame *) 3657 (new_frame + sizeof(struct wlan_frame_hdr)); 3658 /* update the non-tx capability */ 3659 qdf_mem_copy(&bcn->capability, 3660 nontx_profile + CAP_INFO_POS, 3661 CAP_INFO_LEN); 3662 3663 /* Copy the new ie generated from MBSSID profile*/ 3664 qdf_mem_copy(new_frame + 3665 offsetof(struct wlan_bcn_frame, ie) + 3666 sizeof(struct wlan_frame_hdr), 3667 new_ie, new_ie_len); 3668 if (scan_obj->cb.inform_mbssid_bcn_prb_rsp) 3669 scan_obj->cb.inform_mbssid_bcn_prb_rsp( 3670 new_frame, new_frame_len, 3671 frm_subtype, new_bssid); 3672 3673 status = util_scan_gen_scan_entry(pdev, new_frame, 3674 new_frame_len, 3675 frm_subtype, 3676 rx_param, 3677 &mbssid_info, 3678 scan_list); 3679 if (QDF_IS_STATUS_ERROR(status)) { 3680 if (mbssid_info.split_prof_continue) { 3681 qdf_mem_free(split_prof_start); 3682 split_prof_start = NULL; 3683 split_prof_end = NULL; 3684 qdf_mem_zero(&mbssid_info, 3685 sizeof(mbssid_info)); 3686 } 3687 qdf_mem_free(new_frame); 3688 scm_debug_rl("failed to generate a scan entry " 3689 "split_prof_continue: %d", 3690 mbssid_info.split_prof_continue); 3691 break; 3692 } 3693 /* scan entry makes its own copy so free the frame*/ 3694 if (mbssid_info.split_prof_continue) { 3695 qdf_mem_free(split_prof_start); 3696 split_prof_start = NULL; 3697 split_prof_end = NULL; 3698 } 3699 qdf_mem_free(new_frame); 3700 } 3701 3702 pos = next_elem; 3703 } 3704 qdf_mem_free(new_ie); 3705 3706 if (split_prof_start) 3707 qdf_mem_free(split_prof_start); 3708 3709 return QDF_STATUS_SUCCESS; 3710 } 3711 #else 3712 static QDF_STATUS util_scan_parse_mbssid(struct wlan_objmgr_pdev *pdev, 3713 uint8_t *frame, qdf_size_t frame_len, 3714 uint32_t frm_subtype, 3715 struct mgmt_rx_event_params *rx_param, 3716 qdf_list_t *scan_list) 3717 { 3718 return QDF_STATUS_SUCCESS; 3719 } 3720 #endif 3721 3722 #if defined(WLAN_FEATURE_11BE) && defined(WLAN_FEATURE_11BE_MLO_MBSSID) 3723 /* 3724 * util_scan_gen_txvap_scan_entry() - Strip out the MBSSID tag from the received 3725 * frame and update the modified frame length before generating a scan entry. 3726 * It is redundant to have MBSSID information as part of the TX vap/ profile 3727 * specific scan entry. 3728 * 3729 * @pdev: pdev context 3730 * @frame: Unsoiled frame passed from util_scan_parse_beacon_frame() 3731 * @frame_len: Length of the unsoiled frame 3732 * @ie_list: Points to the start of IE list in parent/ unsoiled frame 3733 * @ielen: Length of the complete IE list from parent/ unsoiled frame 3734 * @frm_subtype: Frame subtype 3735 * @rx_param: host mgmt header params 3736 * @scan_list: Scan entry list of bss candidates after filtering 3737 * @mbssid_info: Data structure to carry MBSSID information 3738 * 3739 * Return: False if the scan entry generation is not successful 3740 */ 3741 static QDF_STATUS 3742 util_scan_gen_txvap_scan_entry(struct wlan_objmgr_pdev *pdev, 3743 uint8_t *frame, qdf_size_t frame_len, 3744 uint8_t *ie_list, uint32_t ielen, 3745 uint32_t frm_subtype, 3746 struct mgmt_rx_event_params *rx_param, 3747 qdf_list_t *scan_list, 3748 struct scan_mbssid_info *mbssid_info) 3749 { 3750 uint8_t *src_ie, *dest_ptr, *container; 3751 uint16_t new_frame_len, new_ie_len = 0; 3752 uint8_t *trimmed_frame, fixed_len = 0; 3753 QDF_STATUS status = QDF_STATUS_SUCCESS; 3754 3755 /* 3756 * Allocate a buffer to copy only the TX VAP information after 3757 * stripping out the MBSSID IE from the parent beacon. 3758 * The allocation size should be the size of a frame as at 3759 * this point it is unknown what would be the new frame length 3760 * after stripping the MBSSID IE. 3761 */ 3762 container = qdf_mem_malloc(frame_len); 3763 if (!container) { 3764 scm_err_rl("Malloc for container failed"); 3765 return QDF_STATUS_E_NOMEM; 3766 } 3767 3768 dest_ptr = &container[0]; 3769 fixed_len = sizeof(struct wlan_frame_hdr) + 3770 offsetof(struct wlan_bcn_frame, ie); 3771 3772 /*Copy the data till IE list before procesisng the IE one by one*/ 3773 qdf_mem_copy(dest_ptr, frame, fixed_len); 3774 3775 dest_ptr += fixed_len; 3776 src_ie = ie_list; 3777 3778 /* 3779 * Go through the IE list from the parent beacon and copy one by one. 3780 * Skip copying it to the container if it's an MBSSID tag. 3781 */ 3782 while (((src_ie + src_ie[TAG_LEN_POS] + MIN_IE_LEN) - 3783 ie_list) <= ielen) { 3784 if (src_ie[ID_POS] == WLAN_ELEMID_MULTIPLE_BSSID) { 3785 src_ie += src_ie[TAG_LEN_POS] + MIN_IE_LEN; 3786 continue; 3787 } 3788 3789 qdf_mem_copy(dest_ptr, src_ie, 3790 (src_ie[TAG_LEN_POS] + MIN_IE_LEN)); 3791 3792 dest_ptr += src_ie[TAG_LEN_POS] + MIN_IE_LEN; 3793 if (((src_ie + src_ie[TAG_LEN_POS] + 3794 MIN_IE_LEN) - ie_list) >= ielen) 3795 break; 3796 3797 src_ie += src_ie[TAG_LEN_POS] + MIN_IE_LEN; 3798 } 3799 3800 if (dest_ptr > container) 3801 new_ie_len = dest_ptr - (container + fixed_len); 3802 3803 new_frame_len = frame_len - ielen + new_ie_len; 3804 3805 /* 3806 * At the start of this handler, we have allocated a memory block 3807 * of size same as a full beacon frame size, as we are not sure 3808 * of what would be the size of the new frame. After stripping out 3809 * the MBSSID tag from the parent beacon, there are some unused 3810 * memory. Hence do another malloc of the new frame length 3811 * (length of the new frame which has only TX VAP information) 3812 * and copy the needed data from the container, then free the 3813 * memory corresponds to container. 3814 * Post copy, use the trimmed frame and the new frame length 3815 * to generate scan entry for the TX profile. 3816 */ 3817 trimmed_frame = qdf_mem_malloc(new_frame_len); 3818 if (!trimmed_frame) { 3819 scm_err_rl("Malloc for trimmed frame failed"); 3820 qdf_mem_free(container); 3821 return QDF_STATUS_E_NOMEM; 3822 } 3823 3824 qdf_mem_copy(trimmed_frame, container, new_frame_len); 3825 qdf_mem_free(container); 3826 3827 status = util_scan_gen_scan_entry(pdev, trimmed_frame, 3828 new_frame_len, 3829 frm_subtype, 3830 rx_param, 3831 mbssid_info, 3832 scan_list); 3833 3834 if (QDF_IS_STATUS_ERROR(status)) 3835 scm_debug_rl("Failed to create a scan entry"); 3836 3837 qdf_mem_free(trimmed_frame); 3838 return status; 3839 } 3840 3841 /* 3842 * util_scan_parse_eht_beacon() : This API will be executed 3843 * only for 11BE platforms as per current design. 3844 * IF MBSSID IE is present in the beacon then 3845 * scan component will create a new entry for 3846 * each BSSID found in the MBSSID 3847 * util_scan_parse_mbssid() takes care of creating 3848 * scan entries for every non tx profile present in 3849 * the MBSSID tag. 3850 * util_scan_gen_txvap_scan_entry() helps in generating 3851 * scan entry for the tx profile. 3852 */ 3853 static QDF_STATUS 3854 util_scan_parse_eht_beacon(struct wlan_objmgr_pdev *pdev, 3855 uint8_t *frame, qdf_size_t frame_len, 3856 uint8_t *ie_list, uint32_t ielen, 3857 uint32_t frm_subtype, 3858 struct mgmt_rx_event_params *rx_param, 3859 qdf_list_t *scan_list, 3860 struct scan_mbssid_info *mbssid_info, 3861 uint8_t *mbssid_ie) 3862 { 3863 QDF_STATUS status = QDF_STATUS_SUCCESS; 3864 3865 if (mbssid_ie && ie_list) { 3866 if (ie_list[TAG_LEN_POS] <= 0) { 3867 scm_debug_rl("Corrupt IE"); 3868 return QDF_STATUS_E_INVAL; 3869 } 3870 3871 status = util_scan_parse_mbssid(pdev, frame, frame_len, 3872 frm_subtype, rx_param, 3873 scan_list); 3874 3875 if (QDF_IS_STATUS_ERROR(status)) { 3876 scm_debug_rl("NonTx prof: Failed to create scan entry"); 3877 return status; 3878 } 3879 3880 status = util_scan_gen_txvap_scan_entry(pdev, frame, 3881 frame_len, ie_list, 3882 ielen, frm_subtype, 3883 rx_param, scan_list, 3884 mbssid_info); 3885 3886 if (QDF_IS_STATUS_ERROR(status)) 3887 scm_debug_rl("TX prof: Failed to create scan entry"); 3888 3889 return status; 3890 } 3891 3892 /*For Non MBSSIE case*/ 3893 status = util_scan_gen_scan_entry(pdev, frame, frame_len, 3894 frm_subtype, rx_param, 3895 mbssid_info, scan_list); 3896 3897 if (QDF_IS_STATUS_ERROR(status)) 3898 scm_debug_rl("Non-MBSSIE frame: Failed to create scan entry"); 3899 3900 return status; 3901 } 3902 3903 static bool 3904 util_scan_is_platform_eht_capable(struct wlan_objmgr_pdev *pdev) 3905 { 3906 struct wlan_objmgr_psoc *psoc = NULL; 3907 struct wlan_lmac_if_tx_ops *tx_ops = NULL; 3908 struct wlan_lmac_if_scan_tx_ops *scan_ops = NULL; 3909 uint8_t pdev_id; 3910 3911 psoc = wlan_pdev_get_psoc(pdev); 3912 if (!psoc) { 3913 scm_debug_rl("psoc is null"); 3914 return false; 3915 } 3916 tx_ops = wlan_psoc_get_lmac_if_txops(psoc); 3917 if (!tx_ops) { 3918 scm_debug_rl("tx_ops is null"); 3919 return false; 3920 } 3921 scan_ops = &tx_ops->scan; 3922 if (!scan_ops) { 3923 scm_debug_rl("scan_ops is null"); 3924 return false; 3925 } 3926 pdev_id = wlan_objmgr_pdev_get_pdev_id(pdev); 3927 3928 if (scan_ops->is_platform_eht_capable) 3929 return scan_ops->is_platform_eht_capable(psoc, pdev_id); 3930 3931 return false; 3932 } 3933 #else 3934 static QDF_STATUS 3935 util_scan_parse_eht_beacon(struct wlan_objmgr_pdev *pdev, 3936 uint8_t *frame, qdf_size_t frame_len, 3937 uint8_t *ie_list, uint32_t ielen, 3938 uint32_t frm_subtype, 3939 struct mgmt_rx_event_params *rx_param, 3940 qdf_list_t *scan_list, 3941 struct scan_mbssid_info *mbssid_info, 3942 uint8_t *mbssid_ie) 3943 { 3944 return QDF_STATUS_SUCCESS; 3945 } 3946 3947 static bool 3948 util_scan_is_platform_eht_capable(struct wlan_objmgr_pdev *pdev) 3949 { 3950 return false; 3951 } 3952 #endif 3953 3954 static QDF_STATUS 3955 util_scan_parse_beacon_frame(struct wlan_objmgr_pdev *pdev, 3956 uint8_t *frame, 3957 qdf_size_t frame_len, 3958 uint32_t frm_subtype, 3959 struct mgmt_rx_event_params *rx_param, 3960 qdf_list_t *scan_list) 3961 { 3962 struct wlan_bcn_frame *bcn; 3963 struct wlan_frame_hdr *hdr; 3964 uint8_t *mbssid_ie = NULL, *extcap_ie; 3965 uint32_t ie_len = 0; 3966 QDF_STATUS status = QDF_STATUS_E_FAILURE; 3967 struct scan_mbssid_info mbssid_info = { 0 }; 3968 uint8_t *ie_list; 3969 bool eht_support = false; 3970 3971 hdr = (struct wlan_frame_hdr *)frame; 3972 bcn = (struct wlan_bcn_frame *) 3973 (frame + sizeof(struct wlan_frame_hdr)); 3974 ie_list = (uint8_t *)&bcn->ie; 3975 ie_len = (uint16_t)(frame_len - 3976 sizeof(struct wlan_frame_hdr) - 3977 offsetof(struct wlan_bcn_frame, ie)); 3978 3979 extcap_ie = util_scan_find_ie(WLAN_ELEMID_XCAPS, 3980 (uint8_t *)&bcn->ie, ie_len); 3981 /* Process MBSSID when Multiple BSSID (Bit 22) is set in Ext Caps */ 3982 if (extcap_ie && 3983 extcap_ie[1] >= 3 && extcap_ie[1] <= WLAN_EXTCAP_IE_MAX_LEN && 3984 (extcap_ie[4] & 0x40)) { 3985 mbssid_ie = util_scan_find_ie(WLAN_ELEMID_MULTIPLE_BSSID, 3986 (uint8_t *)&bcn->ie, ie_len); 3987 if (mbssid_ie) { 3988 /* some APs announce the MBSSID ie_len as 1 */ 3989 if (mbssid_ie[TAG_LEN_POS] < 1) { 3990 scm_debug("MBSSID IE length is wrong %d", 3991 mbssid_ie[TAG_LEN_POS]); 3992 return status; 3993 } 3994 qdf_mem_copy(&mbssid_info.trans_bssid, 3995 hdr->i_addr3, QDF_MAC_ADDR_SIZE); 3996 mbssid_info.profile_count = 1 << mbssid_ie[2]; 3997 } 3998 } 3999 4000 eht_support = util_scan_is_platform_eht_capable(pdev); 4001 4002 if (eht_support) { 4003 status = util_scan_parse_eht_beacon(pdev, frame, frame_len, 4004 ie_list, ie_len, 4005 frm_subtype, rx_param, 4006 scan_list, &mbssid_info, 4007 mbssid_ie); 4008 return status; 4009 } 4010 4011 status = util_scan_gen_scan_entry(pdev, frame, frame_len, 4012 frm_subtype, rx_param, 4013 &mbssid_info, 4014 scan_list); 4015 4016 if (mbssid_ie) 4017 status = util_scan_parse_mbssid(pdev, frame, frame_len, 4018 frm_subtype, rx_param, 4019 scan_list); 4020 4021 if (QDF_IS_STATUS_ERROR(status)) 4022 scm_debug_rl("Failed to create scan entry"); 4023 4024 return status; 4025 } 4026 4027 qdf_list_t * 4028 util_scan_unpack_beacon_frame(struct wlan_objmgr_pdev *pdev, uint8_t *frame, 4029 qdf_size_t frame_len, uint32_t frm_subtype, 4030 struct mgmt_rx_event_params *rx_param) 4031 { 4032 qdf_list_t *scan_list; 4033 QDF_STATUS status; 4034 4035 scan_list = qdf_mem_malloc_atomic(sizeof(*scan_list)); 4036 if (!scan_list) { 4037 scm_err("failed to allocate scan_list"); 4038 return NULL; 4039 } 4040 qdf_list_create(scan_list, MAX_SCAN_CACHE_SIZE); 4041 4042 status = util_scan_parse_beacon_frame(pdev, frame, frame_len, 4043 frm_subtype, rx_param, 4044 scan_list); 4045 if (QDF_IS_STATUS_ERROR(status)) { 4046 ucfg_scan_purge_results(scan_list); 4047 return NULL; 4048 } 4049 4050 return scan_list; 4051 } 4052 4053 QDF_STATUS 4054 util_scan_entry_update_mlme_info(struct wlan_objmgr_pdev *pdev, 4055 struct scan_cache_entry *scan_entry) 4056 { 4057 4058 if (!pdev || !scan_entry) { 4059 scm_err("pdev 0x%pK, scan_entry: 0x%pK", pdev, scan_entry); 4060 return QDF_STATUS_E_INVAL; 4061 } 4062 4063 return scm_update_scan_mlme_info(pdev, scan_entry); 4064 } 4065 4066 bool util_is_scan_completed(struct scan_event *event, bool *success) 4067 { 4068 if ((event->type == SCAN_EVENT_TYPE_COMPLETED) || 4069 (event->type == SCAN_EVENT_TYPE_DEQUEUED) || 4070 (event->type == SCAN_EVENT_TYPE_START_FAILED)) { 4071 if ((event->type == SCAN_EVENT_TYPE_COMPLETED) && 4072 (event->reason == SCAN_REASON_COMPLETED)) 4073 *success = true; 4074 else 4075 *success = false; 4076 4077 return true; 4078 } 4079 4080 *success = false; 4081 return false; 4082 } 4083 4084 #if defined(WLAN_SAE_SINGLE_PMK) && defined(WLAN_FEATURE_ROAM_OFFLOAD) 4085 bool 4086 util_scan_entry_single_pmk(struct wlan_objmgr_psoc *psoc, 4087 struct scan_cache_entry *scan_entry) 4088 { 4089 if (scan_entry->ie_list.single_pmk && 4090 wlan_mlme_is_sae_single_pmk_enabled(psoc)) 4091 return true; 4092 4093 return false; 4094 } 4095 #endif 4096