1 /* 2 * Driver interaction with Linux nl80211/cfg80211 - Capabilities 3 * Copyright (c) 2002-2015, Jouni Malinen <j@w1.fi> 4 * Copyright (c) 2007, Johannes Berg <johannes@sipsolutions.net> 5 * Copyright (c) 2009-2010, Atheros Communications 6 * 7 * This software may be distributed under the terms of the BSD license. 8 * See README for more details. 9 */ 10 11 #include "includes.h" 12 #include <netlink/genl/genl.h> 13 14 #include "utils/common.h" 15 #include "common/ieee802_11_defs.h" 16 #include "common/ieee802_11_common.h" 17 #include "common/qca-vendor.h" 18 #include "common/qca-vendor-attr.h" 19 #include "driver_nl80211.h" 20 21 22 static int protocol_feature_handler(struct nl_msg *msg, void *arg) 23 { 24 u32 *feat = arg; 25 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 26 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 27 28 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 29 genlmsg_attrlen(gnlh, 0), NULL); 30 31 if (tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]) 32 *feat = nla_get_u32(tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]); 33 34 return NL_SKIP; 35 } 36 37 38 static u32 get_nl80211_protocol_features(struct wpa_driver_nl80211_data *drv) 39 { 40 u32 feat = 0; 41 struct nl_msg *msg; 42 43 msg = nlmsg_alloc(); 44 if (!msg) 45 return 0; 46 47 if (!nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_PROTOCOL_FEATURES)) { 48 nlmsg_free(msg); 49 return 0; 50 } 51 52 if (send_and_recv_msgs(drv, msg, protocol_feature_handler, &feat) == 0) 53 return feat; 54 55 return 0; 56 } 57 58 59 struct wiphy_info_data { 60 struct wpa_driver_nl80211_data *drv; 61 struct wpa_driver_capa *capa; 62 63 unsigned int num_multichan_concurrent; 64 65 unsigned int error:1; 66 unsigned int device_ap_sme:1; 67 unsigned int poll_command_supported:1; 68 unsigned int data_tx_status:1; 69 unsigned int auth_supported:1; 70 unsigned int connect_supported:1; 71 unsigned int p2p_go_supported:1; 72 unsigned int p2p_client_supported:1; 73 unsigned int p2p_go_ctwindow_supported:1; 74 unsigned int p2p_concurrent:1; 75 unsigned int channel_switch_supported:1; 76 unsigned int set_qos_map_supported:1; 77 unsigned int have_low_prio_scan:1; 78 unsigned int wmm_ac_supported:1; 79 unsigned int mac_addr_rand_scan_supported:1; 80 unsigned int mac_addr_rand_sched_scan_supported:1; 81 }; 82 83 84 static unsigned int probe_resp_offload_support(int supp_protocols) 85 { 86 unsigned int prot = 0; 87 88 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS) 89 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS; 90 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2) 91 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2; 92 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P) 93 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P; 94 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U) 95 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING; 96 97 return prot; 98 } 99 100 101 static void wiphy_info_supported_iftypes(struct wiphy_info_data *info, 102 struct nlattr *tb) 103 { 104 struct nlattr *nl_mode; 105 int i; 106 107 if (tb == NULL) 108 return; 109 110 nla_for_each_nested(nl_mode, tb, i) { 111 switch (nla_type(nl_mode)) { 112 case NL80211_IFTYPE_AP: 113 info->capa->flags |= WPA_DRIVER_FLAGS_AP; 114 break; 115 case NL80211_IFTYPE_MESH_POINT: 116 info->capa->flags |= WPA_DRIVER_FLAGS_MESH; 117 break; 118 case NL80211_IFTYPE_ADHOC: 119 info->capa->flags |= WPA_DRIVER_FLAGS_IBSS; 120 break; 121 case NL80211_IFTYPE_P2P_DEVICE: 122 info->capa->flags |= 123 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 124 break; 125 case NL80211_IFTYPE_P2P_GO: 126 info->p2p_go_supported = 1; 127 break; 128 case NL80211_IFTYPE_P2P_CLIENT: 129 info->p2p_client_supported = 1; 130 break; 131 } 132 } 133 } 134 135 136 static int wiphy_info_iface_comb_process(struct wiphy_info_data *info, 137 struct nlattr *nl_combi) 138 { 139 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB]; 140 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT]; 141 struct nlattr *nl_limit, *nl_mode; 142 int err, rem_limit, rem_mode; 143 int combination_has_p2p = 0, combination_has_mgd = 0; 144 static struct nla_policy 145 iface_combination_policy[NUM_NL80211_IFACE_COMB] = { 146 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED }, 147 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 }, 148 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG }, 149 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 }, 150 [NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 }, 151 }, 152 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = { 153 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED }, 154 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 }, 155 }; 156 157 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB, 158 nl_combi, iface_combination_policy); 159 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] || 160 !tb_comb[NL80211_IFACE_COMB_MAXNUM] || 161 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) 162 return 0; /* broken combination */ 163 164 if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS]) 165 info->capa->flags |= WPA_DRIVER_FLAGS_RADAR; 166 167 nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS], 168 rem_limit) { 169 err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT, 170 nl_limit, iface_limit_policy); 171 if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES]) 172 return 0; /* broken combination */ 173 174 nla_for_each_nested(nl_mode, 175 tb_limit[NL80211_IFACE_LIMIT_TYPES], 176 rem_mode) { 177 int ift = nla_type(nl_mode); 178 if (ift == NL80211_IFTYPE_P2P_GO || 179 ift == NL80211_IFTYPE_P2P_CLIENT) 180 combination_has_p2p = 1; 181 if (ift == NL80211_IFTYPE_STATION) 182 combination_has_mgd = 1; 183 } 184 if (combination_has_p2p && combination_has_mgd) 185 break; 186 } 187 188 if (combination_has_p2p && combination_has_mgd) { 189 unsigned int num_channels = 190 nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]); 191 192 info->p2p_concurrent = 1; 193 if (info->num_multichan_concurrent < num_channels) 194 info->num_multichan_concurrent = num_channels; 195 } 196 197 return 0; 198 } 199 200 201 static void wiphy_info_iface_comb(struct wiphy_info_data *info, 202 struct nlattr *tb) 203 { 204 struct nlattr *nl_combi; 205 int rem_combi; 206 207 if (tb == NULL) 208 return; 209 210 nla_for_each_nested(nl_combi, tb, rem_combi) { 211 if (wiphy_info_iface_comb_process(info, nl_combi) > 0) 212 break; 213 } 214 } 215 216 217 static void wiphy_info_supp_cmds(struct wiphy_info_data *info, 218 struct nlattr *tb) 219 { 220 struct nlattr *nl_cmd; 221 int i; 222 223 if (tb == NULL) 224 return; 225 226 nla_for_each_nested(nl_cmd, tb, i) { 227 switch (nla_get_u32(nl_cmd)) { 228 case NL80211_CMD_AUTHENTICATE: 229 info->auth_supported = 1; 230 break; 231 case NL80211_CMD_CONNECT: 232 info->connect_supported = 1; 233 break; 234 case NL80211_CMD_START_SCHED_SCAN: 235 info->capa->sched_scan_supported = 1; 236 break; 237 case NL80211_CMD_PROBE_CLIENT: 238 info->poll_command_supported = 1; 239 break; 240 case NL80211_CMD_CHANNEL_SWITCH: 241 info->channel_switch_supported = 1; 242 break; 243 case NL80211_CMD_SET_QOS_MAP: 244 info->set_qos_map_supported = 1; 245 break; 246 } 247 } 248 } 249 250 251 static void wiphy_info_cipher_suites(struct wiphy_info_data *info, 252 struct nlattr *tb) 253 { 254 int i, num; 255 u32 *ciphers; 256 257 if (tb == NULL) 258 return; 259 260 num = nla_len(tb) / sizeof(u32); 261 ciphers = nla_data(tb); 262 for (i = 0; i < num; i++) { 263 u32 c = ciphers[i]; 264 265 wpa_printf(MSG_DEBUG, "nl80211: Supported cipher %02x-%02x-%02x:%d", 266 c >> 24, (c >> 16) & 0xff, 267 (c >> 8) & 0xff, c & 0xff); 268 switch (c) { 269 case WLAN_CIPHER_SUITE_CCMP_256: 270 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP_256; 271 break; 272 case WLAN_CIPHER_SUITE_GCMP_256: 273 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP_256; 274 break; 275 case WLAN_CIPHER_SUITE_CCMP: 276 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP; 277 break; 278 case WLAN_CIPHER_SUITE_GCMP: 279 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP; 280 break; 281 case WLAN_CIPHER_SUITE_TKIP: 282 info->capa->enc |= WPA_DRIVER_CAPA_ENC_TKIP; 283 break; 284 case WLAN_CIPHER_SUITE_WEP104: 285 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP104; 286 break; 287 case WLAN_CIPHER_SUITE_WEP40: 288 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP40; 289 break; 290 case WLAN_CIPHER_SUITE_AES_CMAC: 291 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP; 292 break; 293 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 294 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_128; 295 break; 296 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 297 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_256; 298 break; 299 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 300 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_CMAC_256; 301 break; 302 case WLAN_CIPHER_SUITE_NO_GROUP_ADDR: 303 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GTK_NOT_USED; 304 break; 305 } 306 } 307 } 308 309 310 static void wiphy_info_max_roc(struct wpa_driver_capa *capa, 311 struct nlattr *tb) 312 { 313 if (tb) 314 capa->max_remain_on_chan = nla_get_u32(tb); 315 } 316 317 318 static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls, 319 struct nlattr *ext_setup) 320 { 321 if (tdls == NULL) 322 return; 323 324 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported"); 325 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT; 326 327 if (ext_setup) { 328 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup"); 329 capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP; 330 } 331 } 332 333 334 static int ext_feature_isset(const u8 *ext_features, int ext_features_len, 335 enum nl80211_ext_feature_index ftidx) 336 { 337 u8 ft_byte; 338 339 if ((int) ftidx / 8 >= ext_features_len) 340 return 0; 341 342 ft_byte = ext_features[ftidx / 8]; 343 return (ft_byte & BIT(ftidx % 8)) != 0; 344 } 345 346 347 static void wiphy_info_ext_feature_flags(struct wiphy_info_data *info, 348 struct nlattr *tb) 349 { 350 struct wpa_driver_capa *capa = info->capa; 351 u8 *ext_features; 352 int len; 353 354 if (tb == NULL) 355 return; 356 357 ext_features = nla_data(tb); 358 len = nla_len(tb); 359 360 if (ext_feature_isset(ext_features, len, NL80211_EXT_FEATURE_VHT_IBSS)) 361 capa->flags |= WPA_DRIVER_FLAGS_VHT_IBSS; 362 363 if (ext_feature_isset(ext_features, len, NL80211_EXT_FEATURE_RRM)) 364 capa->rrm_flags |= WPA_DRIVER_FLAGS_SUPPORT_RRM; 365 } 366 367 368 static void wiphy_info_feature_flags(struct wiphy_info_data *info, 369 struct nlattr *tb) 370 { 371 u32 flags; 372 struct wpa_driver_capa *capa = info->capa; 373 374 if (tb == NULL) 375 return; 376 377 flags = nla_get_u32(tb); 378 379 if (flags & NL80211_FEATURE_SK_TX_STATUS) 380 info->data_tx_status = 1; 381 382 if (flags & NL80211_FEATURE_INACTIVITY_TIMER) 383 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER; 384 385 if (flags & NL80211_FEATURE_SAE) 386 capa->flags |= WPA_DRIVER_FLAGS_SAE; 387 388 if (flags & NL80211_FEATURE_NEED_OBSS_SCAN) 389 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN; 390 391 if (flags & NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE) 392 capa->flags |= WPA_DRIVER_FLAGS_HT_2040_COEX; 393 394 if (flags & NL80211_FEATURE_TDLS_CHANNEL_SWITCH) { 395 wpa_printf(MSG_DEBUG, "nl80211: TDLS channel switch"); 396 capa->flags |= WPA_DRIVER_FLAGS_TDLS_CHANNEL_SWITCH; 397 } 398 399 if (flags & NL80211_FEATURE_P2P_GO_CTWIN) 400 info->p2p_go_ctwindow_supported = 1; 401 402 if (flags & NL80211_FEATURE_LOW_PRIORITY_SCAN) 403 info->have_low_prio_scan = 1; 404 405 if (flags & NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR) 406 info->mac_addr_rand_scan_supported = 1; 407 408 if (flags & NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR) 409 info->mac_addr_rand_sched_scan_supported = 1; 410 411 if (flags & NL80211_FEATURE_STATIC_SMPS) 412 capa->smps_modes |= WPA_DRIVER_SMPS_MODE_STATIC; 413 414 if (flags & NL80211_FEATURE_DYNAMIC_SMPS) 415 capa->smps_modes |= WPA_DRIVER_SMPS_MODE_DYNAMIC; 416 417 if (flags & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION) 418 info->wmm_ac_supported = 1; 419 420 if (flags & NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) 421 capa->rrm_flags |= WPA_DRIVER_FLAGS_DS_PARAM_SET_IE_IN_PROBES; 422 423 if (flags & NL80211_FEATURE_WFA_TPC_IE_IN_PROBES) 424 capa->rrm_flags |= WPA_DRIVER_FLAGS_WFA_TPC_IE_IN_PROBES; 425 426 if (flags & NL80211_FEATURE_QUIET) 427 capa->rrm_flags |= WPA_DRIVER_FLAGS_QUIET; 428 429 if (flags & NL80211_FEATURE_TX_POWER_INSERTION) 430 capa->rrm_flags |= WPA_DRIVER_FLAGS_TX_POWER_INSERTION; 431 432 if (flags & NL80211_FEATURE_HT_IBSS) 433 capa->flags |= WPA_DRIVER_FLAGS_HT_IBSS; 434 435 if (flags & NL80211_FEATURE_FULL_AP_CLIENT_STATE) 436 capa->flags |= WPA_DRIVER_FLAGS_FULL_AP_CLIENT_STATE; 437 } 438 439 440 static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa, 441 struct nlattr *tb) 442 { 443 u32 protocols; 444 445 if (tb == NULL) 446 return; 447 448 protocols = nla_get_u32(tb); 449 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP " 450 "mode"); 451 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD; 452 capa->probe_resp_offloads = probe_resp_offload_support(protocols); 453 } 454 455 456 static void wiphy_info_wowlan_triggers(struct wpa_driver_capa *capa, 457 struct nlattr *tb) 458 { 459 struct nlattr *triggers[MAX_NL80211_WOWLAN_TRIG + 1]; 460 461 if (tb == NULL) 462 return; 463 464 if (nla_parse_nested(triggers, MAX_NL80211_WOWLAN_TRIG, 465 tb, NULL)) 466 return; 467 468 if (triggers[NL80211_WOWLAN_TRIG_ANY]) 469 capa->wowlan_triggers.any = 1; 470 if (triggers[NL80211_WOWLAN_TRIG_DISCONNECT]) 471 capa->wowlan_triggers.disconnect = 1; 472 if (triggers[NL80211_WOWLAN_TRIG_MAGIC_PKT]) 473 capa->wowlan_triggers.magic_pkt = 1; 474 if (triggers[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) 475 capa->wowlan_triggers.gtk_rekey_failure = 1; 476 if (triggers[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) 477 capa->wowlan_triggers.eap_identity_req = 1; 478 if (triggers[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) 479 capa->wowlan_triggers.four_way_handshake = 1; 480 if (triggers[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) 481 capa->wowlan_triggers.rfkill_release = 1; 482 } 483 484 485 static void wiphy_info_extended_capab(struct wpa_driver_nl80211_data *drv, 486 struct nlattr *tb) 487 { 488 int rem = 0, i; 489 struct nlattr *tb1[NL80211_ATTR_MAX + 1], *attr; 490 491 if (!tb || drv->num_iface_ext_capa == NL80211_IFTYPE_MAX) 492 return; 493 494 nla_for_each_nested(attr, tb, rem) { 495 unsigned int len; 496 struct drv_nl80211_ext_capa *capa; 497 498 nla_parse(tb1, NL80211_ATTR_MAX, nla_data(attr), 499 nla_len(attr), NULL); 500 501 if (!tb1[NL80211_ATTR_IFTYPE] || 502 !tb1[NL80211_ATTR_EXT_CAPA] || 503 !tb1[NL80211_ATTR_EXT_CAPA_MASK]) 504 continue; 505 506 capa = &drv->iface_ext_capa[drv->num_iface_ext_capa]; 507 capa->iftype = nla_get_u32(tb1[NL80211_ATTR_IFTYPE]); 508 wpa_printf(MSG_DEBUG, 509 "nl80211: Driver-advertised extended capabilities for interface type %s", 510 nl80211_iftype_str(capa->iftype)); 511 512 len = nla_len(tb1[NL80211_ATTR_EXT_CAPA]); 513 capa->ext_capa = os_malloc(len); 514 if (!capa->ext_capa) 515 goto err; 516 517 os_memcpy(capa->ext_capa, nla_data(tb1[NL80211_ATTR_EXT_CAPA]), 518 len); 519 capa->ext_capa_len = len; 520 wpa_hexdump(MSG_DEBUG, "nl80211: Extended capabilities", 521 capa->ext_capa, capa->ext_capa_len); 522 523 len = nla_len(tb1[NL80211_ATTR_EXT_CAPA_MASK]); 524 capa->ext_capa_mask = os_malloc(len); 525 if (!capa->ext_capa_mask) 526 goto err; 527 528 os_memcpy(capa->ext_capa_mask, 529 nla_data(tb1[NL80211_ATTR_EXT_CAPA_MASK]), len); 530 wpa_hexdump(MSG_DEBUG, "nl80211: Extended capabilities mask", 531 capa->ext_capa_mask, capa->ext_capa_len); 532 533 drv->num_iface_ext_capa++; 534 if (drv->num_iface_ext_capa == NL80211_IFTYPE_MAX) 535 break; 536 } 537 538 return; 539 540 err: 541 /* Cleanup allocated memory on error */ 542 for (i = 0; i < NL80211_IFTYPE_MAX; i++) { 543 os_free(drv->iface_ext_capa[i].ext_capa); 544 drv->iface_ext_capa[i].ext_capa = NULL; 545 os_free(drv->iface_ext_capa[i].ext_capa_mask); 546 drv->iface_ext_capa[i].ext_capa_mask = NULL; 547 drv->iface_ext_capa[i].ext_capa_len = 0; 548 } 549 drv->num_iface_ext_capa = 0; 550 } 551 552 553 static int wiphy_info_handler(struct nl_msg *msg, void *arg) 554 { 555 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 556 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 557 struct wiphy_info_data *info = arg; 558 struct wpa_driver_capa *capa = info->capa; 559 struct wpa_driver_nl80211_data *drv = info->drv; 560 561 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 562 genlmsg_attrlen(gnlh, 0), NULL); 563 564 if (tb[NL80211_ATTR_WIPHY]) 565 drv->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]); 566 567 if (tb[NL80211_ATTR_WIPHY_NAME]) 568 os_strlcpy(drv->phyname, 569 nla_get_string(tb[NL80211_ATTR_WIPHY_NAME]), 570 sizeof(drv->phyname)); 571 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]) 572 capa->max_scan_ssids = 573 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]); 574 575 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]) 576 capa->max_sched_scan_ssids = 577 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]); 578 579 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS] && 580 tb[NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL] && 581 tb[NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS]) { 582 capa->max_sched_scan_plans = 583 nla_get_u32(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS]); 584 585 capa->max_sched_scan_plan_interval = 586 nla_get_u32(tb[NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL]); 587 588 capa->max_sched_scan_plan_iterations = 589 nla_get_u32(tb[NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS]); 590 } 591 592 if (tb[NL80211_ATTR_MAX_MATCH_SETS]) 593 capa->max_match_sets = 594 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]); 595 596 if (tb[NL80211_ATTR_MAC_ACL_MAX]) 597 capa->max_acl_mac_addrs = 598 nla_get_u8(tb[NL80211_ATTR_MAC_ACL_MAX]); 599 600 wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]); 601 wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]); 602 wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]); 603 wiphy_info_cipher_suites(info, tb[NL80211_ATTR_CIPHER_SUITES]); 604 605 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) { 606 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based " 607 "off-channel TX"); 608 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX; 609 } 610 611 if (tb[NL80211_ATTR_ROAM_SUPPORT]) { 612 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming"); 613 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION; 614 } 615 616 wiphy_info_max_roc(capa, 617 tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]); 618 619 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD]) 620 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD; 621 622 wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT], 623 tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]); 624 625 if (tb[NL80211_ATTR_DEVICE_AP_SME]) 626 info->device_ap_sme = 1; 627 628 wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]); 629 wiphy_info_ext_feature_flags(info, tb[NL80211_ATTR_EXT_FEATURES]); 630 wiphy_info_probe_resp_offload(capa, 631 tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]); 632 633 if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] && 634 drv->extended_capa == NULL) { 635 drv->extended_capa = 636 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 637 if (drv->extended_capa) { 638 os_memcpy(drv->extended_capa, 639 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 640 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 641 drv->extended_capa_len = 642 nla_len(tb[NL80211_ATTR_EXT_CAPA]); 643 wpa_hexdump(MSG_DEBUG, 644 "nl80211: Driver-advertised extended capabilities (default)", 645 drv->extended_capa, drv->extended_capa_len); 646 } 647 drv->extended_capa_mask = 648 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA_MASK])); 649 if (drv->extended_capa_mask) { 650 os_memcpy(drv->extended_capa_mask, 651 nla_data(tb[NL80211_ATTR_EXT_CAPA_MASK]), 652 nla_len(tb[NL80211_ATTR_EXT_CAPA_MASK])); 653 wpa_hexdump(MSG_DEBUG, 654 "nl80211: Driver-advertised extended capabilities mask (default)", 655 drv->extended_capa_mask, 656 drv->extended_capa_len); 657 } else { 658 os_free(drv->extended_capa); 659 drv->extended_capa = NULL; 660 drv->extended_capa_len = 0; 661 } 662 } 663 664 wiphy_info_extended_capab(drv, tb[NL80211_ATTR_IFTYPE_EXT_CAPA]); 665 666 if (tb[NL80211_ATTR_VENDOR_DATA]) { 667 struct nlattr *nl; 668 int rem; 669 670 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_DATA], rem) { 671 struct nl80211_vendor_cmd_info *vinfo; 672 if (nla_len(nl) != sizeof(*vinfo)) { 673 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info"); 674 continue; 675 } 676 vinfo = nla_data(nl); 677 if (vinfo->vendor_id == OUI_QCA) { 678 switch (vinfo->subcmd) { 679 case QCA_NL80211_VENDOR_SUBCMD_TEST: 680 drv->vendor_cmd_test_avail = 1; 681 break; 682 #ifdef CONFIG_DRIVER_NL80211_QCA 683 case QCA_NL80211_VENDOR_SUBCMD_ROAMING: 684 drv->roaming_vendor_cmd_avail = 1; 685 break; 686 case QCA_NL80211_VENDOR_SUBCMD_DFS_CAPABILITY: 687 drv->dfs_vendor_cmd_avail = 1; 688 break; 689 case QCA_NL80211_VENDOR_SUBCMD_GET_FEATURES: 690 drv->get_features_vendor_cmd_avail = 1; 691 break; 692 case QCA_NL80211_VENDOR_SUBCMD_GET_PREFERRED_FREQ_LIST: 693 drv->get_pref_freq_list = 1; 694 break; 695 case QCA_NL80211_VENDOR_SUBCMD_SET_PROBABLE_OPER_CHANNEL: 696 drv->set_prob_oper_freq = 1; 697 break; 698 case QCA_NL80211_VENDOR_SUBCMD_DO_ACS: 699 drv->capa.flags |= 700 WPA_DRIVER_FLAGS_ACS_OFFLOAD; 701 break; 702 case QCA_NL80211_VENDOR_SUBCMD_SETBAND: 703 drv->setband_vendor_cmd_avail = 1; 704 break; 705 case QCA_NL80211_VENDOR_SUBCMD_TRIGGER_SCAN: 706 drv->scan_vendor_cmd_avail = 1; 707 break; 708 case QCA_NL80211_VENDOR_SUBCMD_SET_WIFI_CONFIGURATION: 709 drv->set_wifi_conf_vendor_cmd_avail = 1; 710 break; 711 #endif /* CONFIG_DRIVER_NL80211_QCA */ 712 } 713 } 714 715 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor command: vendor_id=0x%x subcmd=%u", 716 vinfo->vendor_id, vinfo->subcmd); 717 } 718 } 719 720 if (tb[NL80211_ATTR_VENDOR_EVENTS]) { 721 struct nlattr *nl; 722 int rem; 723 724 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_EVENTS], rem) { 725 struct nl80211_vendor_cmd_info *vinfo; 726 if (nla_len(nl) != sizeof(*vinfo)) { 727 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info"); 728 continue; 729 } 730 vinfo = nla_data(nl); 731 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor event: vendor_id=0x%x subcmd=%u", 732 vinfo->vendor_id, vinfo->subcmd); 733 } 734 } 735 736 wiphy_info_wowlan_triggers(capa, 737 tb[NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED]); 738 739 if (tb[NL80211_ATTR_MAX_AP_ASSOC_STA]) 740 capa->max_stations = 741 nla_get_u32(tb[NL80211_ATTR_MAX_AP_ASSOC_STA]); 742 743 if (tb[NL80211_ATTR_MAX_CSA_COUNTERS]) 744 capa->max_csa_counters = 745 nla_get_u8(tb[NL80211_ATTR_MAX_CSA_COUNTERS]); 746 747 return NL_SKIP; 748 } 749 750 751 static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv, 752 struct wiphy_info_data *info) 753 { 754 u32 feat; 755 struct nl_msg *msg; 756 int flags = 0; 757 758 os_memset(info, 0, sizeof(*info)); 759 info->capa = &drv->capa; 760 info->drv = drv; 761 762 feat = get_nl80211_protocol_features(drv); 763 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 764 flags = NLM_F_DUMP; 765 msg = nl80211_cmd_msg(drv->first_bss, flags, NL80211_CMD_GET_WIPHY); 766 if (!msg || nla_put_flag(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP)) { 767 nlmsg_free(msg); 768 return -1; 769 } 770 771 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info)) 772 return -1; 773 774 if (info->auth_supported) 775 drv->capa.flags |= WPA_DRIVER_FLAGS_SME; 776 else if (!info->connect_supported) { 777 wpa_printf(MSG_INFO, "nl80211: Driver does not support " 778 "authentication/association or connect commands"); 779 info->error = 1; 780 } 781 782 if (info->p2p_go_supported && info->p2p_client_supported) 783 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE; 784 if (info->p2p_concurrent) { 785 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 786 "interface (driver advertised support)"); 787 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 788 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 789 } 790 if (info->num_multichan_concurrent > 1) { 791 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel " 792 "concurrent (driver advertised support)"); 793 drv->capa.num_multichan_concurrent = 794 info->num_multichan_concurrent; 795 } 796 if (drv->capa.flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) 797 wpa_printf(MSG_DEBUG, "nl80211: use P2P_DEVICE support"); 798 799 /* default to 5000 since early versions of mac80211 don't set it */ 800 if (!drv->capa.max_remain_on_chan) 801 drv->capa.max_remain_on_chan = 5000; 802 803 drv->capa.wmm_ac_supported = info->wmm_ac_supported; 804 805 drv->capa.mac_addr_rand_sched_scan_supported = 806 info->mac_addr_rand_sched_scan_supported; 807 drv->capa.mac_addr_rand_scan_supported = 808 info->mac_addr_rand_scan_supported; 809 810 if (info->channel_switch_supported) { 811 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_CSA; 812 if (!drv->capa.max_csa_counters) 813 drv->capa.max_csa_counters = 1; 814 } 815 816 if (!drv->capa.max_sched_scan_plans) { 817 drv->capa.max_sched_scan_plans = 1; 818 drv->capa.max_sched_scan_plan_interval = UINT32_MAX; 819 drv->capa.max_sched_scan_plan_iterations = 0; 820 } 821 822 return 0; 823 } 824 825 826 #ifdef CONFIG_DRIVER_NL80211_QCA 827 828 static int dfs_info_handler(struct nl_msg *msg, void *arg) 829 { 830 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 831 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 832 int *dfs_capability_ptr = arg; 833 834 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 835 genlmsg_attrlen(gnlh, 0), NULL); 836 837 if (tb[NL80211_ATTR_VENDOR_DATA]) { 838 struct nlattr *nl_vend = tb[NL80211_ATTR_VENDOR_DATA]; 839 struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_MAX + 1]; 840 841 nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_MAX, 842 nla_data(nl_vend), nla_len(nl_vend), NULL); 843 844 if (tb_vendor[QCA_WLAN_VENDOR_ATTR_DFS]) { 845 u32 val; 846 val = nla_get_u32(tb_vendor[QCA_WLAN_VENDOR_ATTR_DFS]); 847 wpa_printf(MSG_DEBUG, "nl80211: DFS offload capability: %u", 848 val); 849 *dfs_capability_ptr = val; 850 } 851 } 852 853 return NL_SKIP; 854 } 855 856 857 static void qca_nl80211_check_dfs_capa(struct wpa_driver_nl80211_data *drv) 858 { 859 struct nl_msg *msg; 860 int dfs_capability = 0; 861 int ret; 862 863 if (!drv->dfs_vendor_cmd_avail) 864 return; 865 866 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || 867 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || 868 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, 869 QCA_NL80211_VENDOR_SUBCMD_DFS_CAPABILITY)) { 870 nlmsg_free(msg); 871 return; 872 } 873 874 ret = send_and_recv_msgs(drv, msg, dfs_info_handler, &dfs_capability); 875 if (!ret && dfs_capability) 876 drv->capa.flags |= WPA_DRIVER_FLAGS_DFS_OFFLOAD; 877 } 878 879 880 struct features_info { 881 u8 *flags; 882 size_t flags_len; 883 struct wpa_driver_capa *capa; 884 }; 885 886 887 static int features_info_handler(struct nl_msg *msg, void *arg) 888 { 889 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 890 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 891 struct features_info *info = arg; 892 struct nlattr *nl_vend, *attr; 893 894 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 895 genlmsg_attrlen(gnlh, 0), NULL); 896 897 nl_vend = tb[NL80211_ATTR_VENDOR_DATA]; 898 if (nl_vend) { 899 struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_MAX + 1]; 900 901 nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_MAX, 902 nla_data(nl_vend), nla_len(nl_vend), NULL); 903 904 attr = tb_vendor[QCA_WLAN_VENDOR_ATTR_FEATURE_FLAGS]; 905 if (attr) { 906 int len = nla_len(attr); 907 info->flags = os_malloc(len); 908 if (info->flags != NULL) { 909 os_memcpy(info->flags, nla_data(attr), len); 910 info->flags_len = len; 911 } 912 } 913 attr = tb_vendor[QCA_WLAN_VENDOR_ATTR_CONCURRENCY_CAPA]; 914 if (attr) 915 info->capa->conc_capab = nla_get_u32(attr); 916 917 attr = tb_vendor[ 918 QCA_WLAN_VENDOR_ATTR_MAX_CONCURRENT_CHANNELS_2_4_BAND]; 919 if (attr) 920 info->capa->max_conc_chan_2_4 = nla_get_u32(attr); 921 922 attr = tb_vendor[ 923 QCA_WLAN_VENDOR_ATTR_MAX_CONCURRENT_CHANNELS_5_0_BAND]; 924 if (attr) 925 info->capa->max_conc_chan_5_0 = nla_get_u32(attr); 926 } 927 928 return NL_SKIP; 929 } 930 931 932 static int check_feature(enum qca_wlan_vendor_features feature, 933 struct features_info *info) 934 { 935 size_t idx = feature / 8; 936 937 return (idx < info->flags_len) && 938 (info->flags[idx] & BIT(feature % 8)); 939 } 940 941 942 static void qca_nl80211_get_features(struct wpa_driver_nl80211_data *drv) 943 { 944 struct nl_msg *msg; 945 struct features_info info; 946 int ret; 947 948 if (!drv->get_features_vendor_cmd_avail) 949 return; 950 951 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || 952 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || 953 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, 954 QCA_NL80211_VENDOR_SUBCMD_GET_FEATURES)) { 955 nlmsg_free(msg); 956 return; 957 } 958 959 os_memset(&info, 0, sizeof(info)); 960 info.capa = &drv->capa; 961 ret = send_and_recv_msgs(drv, msg, features_info_handler, &info); 962 if (ret || !info.flags) 963 return; 964 965 if (check_feature(QCA_WLAN_VENDOR_FEATURE_KEY_MGMT_OFFLOAD, &info)) 966 drv->capa.flags |= WPA_DRIVER_FLAGS_KEY_MGMT_OFFLOAD; 967 968 if (check_feature(QCA_WLAN_VENDOR_FEATURE_SUPPORT_HW_MODE_ANY, &info)) 969 drv->capa.flags |= WPA_DRIVER_FLAGS_SUPPORT_HW_MODE_ANY; 970 971 if (check_feature(QCA_WLAN_VENDOR_FEATURE_OFFCHANNEL_SIMULTANEOUS, 972 &info)) 973 drv->capa.flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS; 974 if (check_feature(QCA_WLAN_VENDOR_FEATURE_P2P_LISTEN_OFFLOAD, &info)) 975 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_LISTEN_OFFLOAD; 976 os_free(info.flags); 977 } 978 979 #endif /* CONFIG_DRIVER_NL80211_QCA */ 980 981 982 int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv) 983 { 984 struct wiphy_info_data info; 985 if (wpa_driver_nl80211_get_info(drv, &info)) 986 return -1; 987 988 if (info.error) 989 return -1; 990 991 drv->has_capability = 1; 992 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA | 993 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK | 994 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 | 995 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK | 996 WPA_DRIVER_CAPA_KEY_MGMT_SUITE_B | 997 WPA_DRIVER_CAPA_KEY_MGMT_SUITE_B_192; 998 drv->capa.auth = WPA_DRIVER_AUTH_OPEN | 999 WPA_DRIVER_AUTH_SHARED | 1000 WPA_DRIVER_AUTH_LEAP; 1001 1002 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES; 1003 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE; 1004 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 1005 1006 /* 1007 * As all cfg80211 drivers must support cases where the AP interface is 1008 * removed without the knowledge of wpa_supplicant/hostapd, e.g., in 1009 * case that the user space daemon has crashed, they must be able to 1010 * cleanup all stations and key entries in the AP tear down flow. Thus, 1011 * this flag can/should always be set for cfg80211 drivers. 1012 */ 1013 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT; 1014 1015 if (!info.device_ap_sme) { 1016 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS; 1017 1018 /* 1019 * No AP SME is currently assumed to also indicate no AP MLME 1020 * in the driver/firmware. 1021 */ 1022 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME; 1023 } 1024 1025 drv->device_ap_sme = info.device_ap_sme; 1026 drv->poll_command_supported = info.poll_command_supported; 1027 drv->data_tx_status = info.data_tx_status; 1028 drv->p2p_go_ctwindow_supported = info.p2p_go_ctwindow_supported; 1029 if (info.set_qos_map_supported) 1030 drv->capa.flags |= WPA_DRIVER_FLAGS_QOS_MAPPING; 1031 drv->have_low_prio_scan = info.have_low_prio_scan; 1032 1033 /* 1034 * If poll command and tx status are supported, mac80211 is new enough 1035 * to have everything we need to not need monitor interfaces. 1036 */ 1037 drv->use_monitor = !info.device_ap_sme && 1038 (!info.poll_command_supported || !info.data_tx_status); 1039 1040 /* 1041 * If we aren't going to use monitor interfaces, but the 1042 * driver doesn't support data TX status, we won't get TX 1043 * status for EAPOL frames. 1044 */ 1045 if (!drv->use_monitor && !info.data_tx_status) 1046 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 1047 1048 #ifdef CONFIG_DRIVER_NL80211_QCA 1049 qca_nl80211_check_dfs_capa(drv); 1050 qca_nl80211_get_features(drv); 1051 1052 /* 1053 * To enable offchannel simultaneous support in wpa_supplicant, the 1054 * underlying driver needs to support the same along with offchannel TX. 1055 * Offchannel TX support is needed since remain_on_channel and 1056 * action_tx use some common data structures and hence cannot be 1057 * scheduled simultaneously. 1058 */ 1059 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX)) 1060 drv->capa.flags &= ~WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS; 1061 #endif /* CONFIG_DRIVER_NL80211_QCA */ 1062 1063 return 0; 1064 } 1065 1066 1067 struct phy_info_arg { 1068 u16 *num_modes; 1069 struct hostapd_hw_modes *modes; 1070 int last_mode, last_chan_idx; 1071 int failed; 1072 }; 1073 1074 static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa, 1075 struct nlattr *ampdu_factor, 1076 struct nlattr *ampdu_density, 1077 struct nlattr *mcs_set) 1078 { 1079 if (capa) 1080 mode->ht_capab = nla_get_u16(capa); 1081 1082 if (ampdu_factor) 1083 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03; 1084 1085 if (ampdu_density) 1086 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2; 1087 1088 if (mcs_set && nla_len(mcs_set) >= 16) { 1089 u8 *mcs; 1090 mcs = nla_data(mcs_set); 1091 os_memcpy(mode->mcs_set, mcs, 16); 1092 } 1093 } 1094 1095 1096 static void phy_info_vht_capa(struct hostapd_hw_modes *mode, 1097 struct nlattr *capa, 1098 struct nlattr *mcs_set) 1099 { 1100 if (capa) 1101 mode->vht_capab = nla_get_u32(capa); 1102 1103 if (mcs_set && nla_len(mcs_set) >= 8) { 1104 u8 *mcs; 1105 mcs = nla_data(mcs_set); 1106 os_memcpy(mode->vht_mcs_set, mcs, 8); 1107 } 1108 } 1109 1110 1111 static void phy_info_freq(struct hostapd_hw_modes *mode, 1112 struct hostapd_channel_data *chan, 1113 struct nlattr *tb_freq[]) 1114 { 1115 u8 channel; 1116 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]); 1117 chan->flag = 0; 1118 chan->dfs_cac_ms = 0; 1119 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES) 1120 chan->chan = channel; 1121 1122 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) 1123 chan->flag |= HOSTAPD_CHAN_DISABLED; 1124 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IR]) 1125 chan->flag |= HOSTAPD_CHAN_NO_IR; 1126 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR]) 1127 chan->flag |= HOSTAPD_CHAN_RADAR; 1128 if (tb_freq[NL80211_FREQUENCY_ATTR_INDOOR_ONLY]) 1129 chan->flag |= HOSTAPD_CHAN_INDOOR_ONLY; 1130 if (tb_freq[NL80211_FREQUENCY_ATTR_GO_CONCURRENT]) 1131 chan->flag |= HOSTAPD_CHAN_GO_CONCURRENT; 1132 1133 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) { 1134 enum nl80211_dfs_state state = 1135 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]); 1136 1137 switch (state) { 1138 case NL80211_DFS_USABLE: 1139 chan->flag |= HOSTAPD_CHAN_DFS_USABLE; 1140 break; 1141 case NL80211_DFS_AVAILABLE: 1142 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE; 1143 break; 1144 case NL80211_DFS_UNAVAILABLE: 1145 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE; 1146 break; 1147 } 1148 } 1149 1150 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME]) { 1151 chan->dfs_cac_ms = nla_get_u32( 1152 tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME]); 1153 } 1154 } 1155 1156 1157 static int phy_info_freqs(struct phy_info_arg *phy_info, 1158 struct hostapd_hw_modes *mode, struct nlattr *tb) 1159 { 1160 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 1161 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 }, 1162 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG }, 1163 [NL80211_FREQUENCY_ATTR_NO_IR] = { .type = NLA_FLAG }, 1164 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG }, 1165 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 }, 1166 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 }, 1167 }; 1168 int new_channels = 0; 1169 struct hostapd_channel_data *channel; 1170 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1]; 1171 struct nlattr *nl_freq; 1172 int rem_freq, idx; 1173 1174 if (tb == NULL) 1175 return NL_OK; 1176 1177 nla_for_each_nested(nl_freq, tb, rem_freq) { 1178 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 1179 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 1180 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 1181 continue; 1182 new_channels++; 1183 } 1184 1185 channel = os_realloc_array(mode->channels, 1186 mode->num_channels + new_channels, 1187 sizeof(struct hostapd_channel_data)); 1188 if (!channel) 1189 return NL_STOP; 1190 1191 mode->channels = channel; 1192 mode->num_channels += new_channels; 1193 1194 idx = phy_info->last_chan_idx; 1195 1196 nla_for_each_nested(nl_freq, tb, rem_freq) { 1197 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 1198 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 1199 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 1200 continue; 1201 phy_info_freq(mode, &mode->channels[idx], tb_freq); 1202 idx++; 1203 } 1204 phy_info->last_chan_idx = idx; 1205 1206 return NL_OK; 1207 } 1208 1209 1210 static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb) 1211 { 1212 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = { 1213 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 }, 1214 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = 1215 { .type = NLA_FLAG }, 1216 }; 1217 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1]; 1218 struct nlattr *nl_rate; 1219 int rem_rate, idx; 1220 1221 if (tb == NULL) 1222 return NL_OK; 1223 1224 nla_for_each_nested(nl_rate, tb, rem_rate) { 1225 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 1226 nla_data(nl_rate), nla_len(nl_rate), 1227 rate_policy); 1228 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 1229 continue; 1230 mode->num_rates++; 1231 } 1232 1233 mode->rates = os_calloc(mode->num_rates, sizeof(int)); 1234 if (!mode->rates) 1235 return NL_STOP; 1236 1237 idx = 0; 1238 1239 nla_for_each_nested(nl_rate, tb, rem_rate) { 1240 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 1241 nla_data(nl_rate), nla_len(nl_rate), 1242 rate_policy); 1243 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 1244 continue; 1245 mode->rates[idx] = nla_get_u32( 1246 tb_rate[NL80211_BITRATE_ATTR_RATE]); 1247 idx++; 1248 } 1249 1250 return NL_OK; 1251 } 1252 1253 1254 static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band) 1255 { 1256 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1]; 1257 struct hostapd_hw_modes *mode; 1258 int ret; 1259 1260 if (phy_info->last_mode != nl_band->nla_type) { 1261 mode = os_realloc_array(phy_info->modes, 1262 *phy_info->num_modes + 1, 1263 sizeof(*mode)); 1264 if (!mode) { 1265 phy_info->failed = 1; 1266 return NL_STOP; 1267 } 1268 phy_info->modes = mode; 1269 1270 mode = &phy_info->modes[*(phy_info->num_modes)]; 1271 os_memset(mode, 0, sizeof(*mode)); 1272 mode->mode = NUM_HOSTAPD_MODES; 1273 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN | 1274 HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN; 1275 1276 /* 1277 * Unsupported VHT MCS stream is defined as value 3, so the VHT 1278 * MCS RX/TX map must be initialized with 0xffff to mark all 8 1279 * possible streams as unsupported. This will be overridden if 1280 * driver advertises VHT support. 1281 */ 1282 mode->vht_mcs_set[0] = 0xff; 1283 mode->vht_mcs_set[1] = 0xff; 1284 mode->vht_mcs_set[4] = 0xff; 1285 mode->vht_mcs_set[5] = 0xff; 1286 1287 *(phy_info->num_modes) += 1; 1288 phy_info->last_mode = nl_band->nla_type; 1289 phy_info->last_chan_idx = 0; 1290 } else 1291 mode = &phy_info->modes[*(phy_info->num_modes) - 1]; 1292 1293 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band), 1294 nla_len(nl_band), NULL); 1295 1296 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA], 1297 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR], 1298 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY], 1299 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]); 1300 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA], 1301 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]); 1302 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]); 1303 if (ret == NL_OK) 1304 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]); 1305 if (ret != NL_OK) { 1306 phy_info->failed = 1; 1307 return ret; 1308 } 1309 1310 return NL_OK; 1311 } 1312 1313 1314 static int phy_info_handler(struct nl_msg *msg, void *arg) 1315 { 1316 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 1317 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 1318 struct phy_info_arg *phy_info = arg; 1319 struct nlattr *nl_band; 1320 int rem_band; 1321 1322 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 1323 genlmsg_attrlen(gnlh, 0), NULL); 1324 1325 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS]) 1326 return NL_SKIP; 1327 1328 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) 1329 { 1330 int res = phy_info_band(phy_info, nl_band); 1331 if (res != NL_OK) 1332 return res; 1333 } 1334 1335 return NL_SKIP; 1336 } 1337 1338 1339 static struct hostapd_hw_modes * 1340 wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes, 1341 u16 *num_modes) 1342 { 1343 u16 m; 1344 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode; 1345 int i, mode11g_idx = -1; 1346 1347 /* heuristic to set up modes */ 1348 for (m = 0; m < *num_modes; m++) { 1349 if (!modes[m].num_channels) 1350 continue; 1351 if (modes[m].channels[0].freq < 4000) { 1352 modes[m].mode = HOSTAPD_MODE_IEEE80211B; 1353 for (i = 0; i < modes[m].num_rates; i++) { 1354 if (modes[m].rates[i] > 200) { 1355 modes[m].mode = HOSTAPD_MODE_IEEE80211G; 1356 break; 1357 } 1358 } 1359 } else if (modes[m].channels[0].freq > 50000) 1360 modes[m].mode = HOSTAPD_MODE_IEEE80211AD; 1361 else 1362 modes[m].mode = HOSTAPD_MODE_IEEE80211A; 1363 } 1364 1365 /* If only 802.11g mode is included, use it to construct matching 1366 * 802.11b mode data. */ 1367 1368 for (m = 0; m < *num_modes; m++) { 1369 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B) 1370 return modes; /* 802.11b already included */ 1371 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G) 1372 mode11g_idx = m; 1373 } 1374 1375 if (mode11g_idx < 0) 1376 return modes; /* 2.4 GHz band not supported at all */ 1377 1378 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes)); 1379 if (nmodes == NULL) 1380 return modes; /* Could not add 802.11b mode */ 1381 1382 mode = &nmodes[*num_modes]; 1383 os_memset(mode, 0, sizeof(*mode)); 1384 (*num_modes)++; 1385 modes = nmodes; 1386 1387 mode->mode = HOSTAPD_MODE_IEEE80211B; 1388 1389 mode11g = &modes[mode11g_idx]; 1390 mode->num_channels = mode11g->num_channels; 1391 mode->channels = os_malloc(mode11g->num_channels * 1392 sizeof(struct hostapd_channel_data)); 1393 if (mode->channels == NULL) { 1394 (*num_modes)--; 1395 return modes; /* Could not add 802.11b mode */ 1396 } 1397 os_memcpy(mode->channels, mode11g->channels, 1398 mode11g->num_channels * sizeof(struct hostapd_channel_data)); 1399 1400 mode->num_rates = 0; 1401 mode->rates = os_malloc(4 * sizeof(int)); 1402 if (mode->rates == NULL) { 1403 os_free(mode->channels); 1404 (*num_modes)--; 1405 return modes; /* Could not add 802.11b mode */ 1406 } 1407 1408 for (i = 0; i < mode11g->num_rates; i++) { 1409 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 && 1410 mode11g->rates[i] != 55 && mode11g->rates[i] != 110) 1411 continue; 1412 mode->rates[mode->num_rates] = mode11g->rates[i]; 1413 mode->num_rates++; 1414 if (mode->num_rates == 4) 1415 break; 1416 } 1417 1418 if (mode->num_rates == 0) { 1419 os_free(mode->channels); 1420 os_free(mode->rates); 1421 (*num_modes)--; 1422 return modes; /* No 802.11b rates */ 1423 } 1424 1425 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g " 1426 "information"); 1427 1428 return modes; 1429 } 1430 1431 1432 static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start, 1433 int end) 1434 { 1435 int c; 1436 1437 for (c = 0; c < mode->num_channels; c++) { 1438 struct hostapd_channel_data *chan = &mode->channels[c]; 1439 if (chan->freq - 10 >= start && chan->freq + 10 <= end) 1440 chan->flag |= HOSTAPD_CHAN_HT40; 1441 } 1442 } 1443 1444 1445 static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start, 1446 int end) 1447 { 1448 int c; 1449 1450 for (c = 0; c < mode->num_channels; c++) { 1451 struct hostapd_channel_data *chan = &mode->channels[c]; 1452 if (!(chan->flag & HOSTAPD_CHAN_HT40)) 1453 continue; 1454 if (chan->freq - 30 >= start && chan->freq - 10 <= end) 1455 chan->flag |= HOSTAPD_CHAN_HT40MINUS; 1456 if (chan->freq + 10 >= start && chan->freq + 30 <= end) 1457 chan->flag |= HOSTAPD_CHAN_HT40PLUS; 1458 } 1459 } 1460 1461 1462 static void nl80211_reg_rule_max_eirp(u32 start, u32 end, u32 max_eirp, 1463 struct phy_info_arg *results) 1464 { 1465 u16 m; 1466 1467 for (m = 0; m < *results->num_modes; m++) { 1468 int c; 1469 struct hostapd_hw_modes *mode = &results->modes[m]; 1470 1471 for (c = 0; c < mode->num_channels; c++) { 1472 struct hostapd_channel_data *chan = &mode->channels[c]; 1473 if ((u32) chan->freq - 10 >= start && 1474 (u32) chan->freq + 10 <= end) 1475 chan->max_tx_power = max_eirp; 1476 } 1477 } 1478 } 1479 1480 1481 static void nl80211_reg_rule_ht40(u32 start, u32 end, 1482 struct phy_info_arg *results) 1483 { 1484 u16 m; 1485 1486 for (m = 0; m < *results->num_modes; m++) { 1487 if (!(results->modes[m].ht_capab & 1488 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 1489 continue; 1490 nl80211_set_ht40_mode(&results->modes[m], start, end); 1491 } 1492 } 1493 1494 1495 static void nl80211_reg_rule_sec(struct nlattr *tb[], 1496 struct phy_info_arg *results) 1497 { 1498 u32 start, end, max_bw; 1499 u16 m; 1500 1501 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 1502 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 1503 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 1504 return; 1505 1506 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 1507 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 1508 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 1509 1510 if (max_bw < 20) 1511 return; 1512 1513 for (m = 0; m < *results->num_modes; m++) { 1514 if (!(results->modes[m].ht_capab & 1515 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 1516 continue; 1517 nl80211_set_ht40_mode_sec(&results->modes[m], start, end); 1518 } 1519 } 1520 1521 1522 static void nl80211_set_vht_mode(struct hostapd_hw_modes *mode, int start, 1523 int end, int max_bw) 1524 { 1525 int c; 1526 1527 for (c = 0; c < mode->num_channels; c++) { 1528 struct hostapd_channel_data *chan = &mode->channels[c]; 1529 if (chan->freq - 10 >= start && chan->freq + 70 <= end) 1530 chan->flag |= HOSTAPD_CHAN_VHT_10_70; 1531 1532 if (chan->freq - 30 >= start && chan->freq + 50 <= end) 1533 chan->flag |= HOSTAPD_CHAN_VHT_30_50; 1534 1535 if (chan->freq - 50 >= start && chan->freq + 30 <= end) 1536 chan->flag |= HOSTAPD_CHAN_VHT_50_30; 1537 1538 if (chan->freq - 70 >= start && chan->freq + 10 <= end) 1539 chan->flag |= HOSTAPD_CHAN_VHT_70_10; 1540 1541 if (max_bw >= 160) { 1542 if (chan->freq - 10 >= start && chan->freq + 150 <= end) 1543 chan->flag |= HOSTAPD_CHAN_VHT_10_150; 1544 1545 if (chan->freq - 30 >= start && chan->freq + 130 <= end) 1546 chan->flag |= HOSTAPD_CHAN_VHT_30_130; 1547 1548 if (chan->freq - 50 >= start && chan->freq + 110 <= end) 1549 chan->flag |= HOSTAPD_CHAN_VHT_50_110; 1550 1551 if (chan->freq - 70 >= start && chan->freq + 90 <= end) 1552 chan->flag |= HOSTAPD_CHAN_VHT_70_90; 1553 1554 if (chan->freq - 90 >= start && chan->freq + 70 <= end) 1555 chan->flag |= HOSTAPD_CHAN_VHT_90_70; 1556 1557 if (chan->freq - 110 >= start && chan->freq + 50 <= end) 1558 chan->flag |= HOSTAPD_CHAN_VHT_110_50; 1559 1560 if (chan->freq - 130 >= start && chan->freq + 30 <= end) 1561 chan->flag |= HOSTAPD_CHAN_VHT_130_30; 1562 1563 if (chan->freq - 150 >= start && chan->freq + 10 <= end) 1564 chan->flag |= HOSTAPD_CHAN_VHT_150_10; 1565 } 1566 } 1567 } 1568 1569 1570 static void nl80211_reg_rule_vht(struct nlattr *tb[], 1571 struct phy_info_arg *results) 1572 { 1573 u32 start, end, max_bw; 1574 u16 m; 1575 1576 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 1577 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 1578 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 1579 return; 1580 1581 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 1582 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 1583 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 1584 1585 if (max_bw < 80) 1586 return; 1587 1588 for (m = 0; m < *results->num_modes; m++) { 1589 if (!(results->modes[m].ht_capab & 1590 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 1591 continue; 1592 /* TODO: use a real VHT support indication */ 1593 if (!results->modes[m].vht_capab) 1594 continue; 1595 1596 nl80211_set_vht_mode(&results->modes[m], start, end, max_bw); 1597 } 1598 } 1599 1600 1601 static const char * dfs_domain_name(enum nl80211_dfs_regions region) 1602 { 1603 switch (region) { 1604 case NL80211_DFS_UNSET: 1605 return "DFS-UNSET"; 1606 case NL80211_DFS_FCC: 1607 return "DFS-FCC"; 1608 case NL80211_DFS_ETSI: 1609 return "DFS-ETSI"; 1610 case NL80211_DFS_JP: 1611 return "DFS-JP"; 1612 default: 1613 return "DFS-invalid"; 1614 } 1615 } 1616 1617 1618 static int nl80211_get_reg(struct nl_msg *msg, void *arg) 1619 { 1620 struct phy_info_arg *results = arg; 1621 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 1622 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 1623 struct nlattr *nl_rule; 1624 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1]; 1625 int rem_rule; 1626 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 1627 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, 1628 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, 1629 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, 1630 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, 1631 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, 1632 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, 1633 }; 1634 1635 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 1636 genlmsg_attrlen(gnlh, 0), NULL); 1637 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] || 1638 !tb_msg[NL80211_ATTR_REG_RULES]) { 1639 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information " 1640 "available"); 1641 return NL_SKIP; 1642 } 1643 1644 if (tb_msg[NL80211_ATTR_DFS_REGION]) { 1645 enum nl80211_dfs_regions dfs_domain; 1646 dfs_domain = nla_get_u8(tb_msg[NL80211_ATTR_DFS_REGION]); 1647 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s (%s)", 1648 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]), 1649 dfs_domain_name(dfs_domain)); 1650 } else { 1651 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s", 1652 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2])); 1653 } 1654 1655 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 1656 { 1657 u32 start, end, max_eirp = 0, max_bw = 0, flags = 0; 1658 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 1659 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 1660 if (tb_rule[NL80211_ATTR_FREQ_RANGE_START] == NULL || 1661 tb_rule[NL80211_ATTR_FREQ_RANGE_END] == NULL) 1662 continue; 1663 start = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 1664 end = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 1665 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) 1666 max_eirp = nla_get_u32(tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) / 100; 1667 if (tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) 1668 max_bw = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 1669 if (tb_rule[NL80211_ATTR_REG_RULE_FLAGS]) 1670 flags = nla_get_u32(tb_rule[NL80211_ATTR_REG_RULE_FLAGS]); 1671 1672 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz %u mBm%s%s%s%s%s%s%s%s", 1673 start, end, max_bw, max_eirp, 1674 flags & NL80211_RRF_NO_OFDM ? " (no OFDM)" : "", 1675 flags & NL80211_RRF_NO_CCK ? " (no CCK)" : "", 1676 flags & NL80211_RRF_NO_INDOOR ? " (no indoor)" : "", 1677 flags & NL80211_RRF_NO_OUTDOOR ? " (no outdoor)" : 1678 "", 1679 flags & NL80211_RRF_DFS ? " (DFS)" : "", 1680 flags & NL80211_RRF_PTP_ONLY ? " (PTP only)" : "", 1681 flags & NL80211_RRF_PTMP_ONLY ? " (PTMP only)" : "", 1682 flags & NL80211_RRF_NO_IR ? " (no IR)" : ""); 1683 if (max_bw >= 40) 1684 nl80211_reg_rule_ht40(start, end, results); 1685 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) 1686 nl80211_reg_rule_max_eirp(start, end, max_eirp, 1687 results); 1688 } 1689 1690 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 1691 { 1692 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 1693 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 1694 nl80211_reg_rule_sec(tb_rule, results); 1695 } 1696 1697 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 1698 { 1699 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 1700 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 1701 nl80211_reg_rule_vht(tb_rule, results); 1702 } 1703 1704 return NL_SKIP; 1705 } 1706 1707 1708 static int nl80211_set_regulatory_flags(struct wpa_driver_nl80211_data *drv, 1709 struct phy_info_arg *results) 1710 { 1711 struct nl_msg *msg; 1712 1713 msg = nlmsg_alloc(); 1714 if (!msg) 1715 return -ENOMEM; 1716 1717 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 1718 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results); 1719 } 1720 1721 1722 struct hostapd_hw_modes * 1723 nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags) 1724 { 1725 u32 feat; 1726 struct i802_bss *bss = priv; 1727 struct wpa_driver_nl80211_data *drv = bss->drv; 1728 int nl_flags = 0; 1729 struct nl_msg *msg; 1730 struct phy_info_arg result = { 1731 .num_modes = num_modes, 1732 .modes = NULL, 1733 .last_mode = -1, 1734 .failed = 0, 1735 }; 1736 1737 *num_modes = 0; 1738 *flags = 0; 1739 1740 feat = get_nl80211_protocol_features(drv); 1741 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 1742 nl_flags = NLM_F_DUMP; 1743 if (!(msg = nl80211_cmd_msg(bss, nl_flags, NL80211_CMD_GET_WIPHY)) || 1744 nla_put_flag(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP)) { 1745 nlmsg_free(msg); 1746 return NULL; 1747 } 1748 1749 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) { 1750 nl80211_set_regulatory_flags(drv, &result); 1751 if (result.failed) { 1752 int i; 1753 1754 for (i = 0; result.modes && i < *num_modes; i++) { 1755 os_free(result.modes[i].channels); 1756 os_free(result.modes[i].rates); 1757 } 1758 os_free(result.modes); 1759 return NULL; 1760 } 1761 return wpa_driver_nl80211_postprocess_modes(result.modes, 1762 num_modes); 1763 } 1764 1765 return NULL; 1766 } 1767