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_common.h" 16#include "common/wpa_common.h" 17#include "common/qca-vendor.h" 18#include "common/qca-vendor-attr.h" 19#include "driver_nl80211.h" 20 21 22static 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 38static 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 59struct 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 84static 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 101static 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 136static 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 201static 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 217static 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 251static 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 RSN_CIPHER_SUITE_CCMP_256: 270 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP_256; 271 break; 272 case RSN_CIPHER_SUITE_GCMP_256: 273 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP_256; 274 break; 275 case RSN_CIPHER_SUITE_CCMP: 276 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP; 277 break; 278 case RSN_CIPHER_SUITE_GCMP: 279 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP; 280 break; 281 case RSN_CIPHER_SUITE_TKIP: 282 info->capa->enc |= WPA_DRIVER_CAPA_ENC_TKIP; 283 break; 284 case RSN_CIPHER_SUITE_WEP104: 285 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP104; 286 break; 287 case RSN_CIPHER_SUITE_WEP40: 288 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP40; 289 break; 290 case RSN_CIPHER_SUITE_AES_128_CMAC: 291 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP; 292 break; 293 case RSN_CIPHER_SUITE_BIP_GMAC_128: 294 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_128; 295 break; 296 case RSN_CIPHER_SUITE_BIP_GMAC_256: 297 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_256; 298 break; 299 case RSN_CIPHER_SUITE_BIP_CMAC_256: 300 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_CMAC_256; 301 break; 302 case RSN_CIPHER_SUITE_NO_GROUP_ADDRESSED: 303 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GTK_NOT_USED; 304 break; 305 } 306 } 307} 308 309 310static 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 318static 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 334static 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 347static 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 if (ext_feature_isset(ext_features, len, NL80211_EXT_FEATURE_FILS_STA)) 367 capa->flags |= WPA_DRIVER_FLAGS_SUPPORT_FILS; 368 369 if (ext_feature_isset(ext_features, len, 370 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) 371 capa->flags |= WPA_DRIVER_FLAGS_BEACON_RATE_LEGACY; 372 373 if (ext_feature_isset(ext_features, len, 374 NL80211_EXT_FEATURE_BEACON_RATE_HT)) 375 capa->flags |= WPA_DRIVER_FLAGS_BEACON_RATE_HT; 376 377 if (ext_feature_isset(ext_features, len, 378 NL80211_EXT_FEATURE_BEACON_RATE_VHT)) 379 capa->flags |= WPA_DRIVER_FLAGS_BEACON_RATE_VHT; 380 381 if (ext_feature_isset(ext_features, len, 382 NL80211_EXT_FEATURE_SET_SCAN_DWELL)) 383 capa->rrm_flags |= WPA_DRIVER_FLAGS_SUPPORT_SET_SCAN_DWELL; 384 385 if (ext_feature_isset(ext_features, len, 386 NL80211_EXT_FEATURE_SCAN_START_TIME) && 387 ext_feature_isset(ext_features, len, 388 NL80211_EXT_FEATURE_BSS_PARENT_TSF) && 389 ext_feature_isset(ext_features, len, 390 NL80211_EXT_FEATURE_SET_SCAN_DWELL)) 391 capa->rrm_flags |= WPA_DRIVER_FLAGS_SUPPORT_BEACON_REPORT; 392 if (ext_feature_isset(ext_features, len, 393 NL80211_EXT_FEATURE_MGMT_TX_RANDOM_TA)) 394 capa->flags |= WPA_DRIVER_FLAGS_MGMT_TX_RANDOM_TA; 395 if (ext_feature_isset(ext_features, len, 396 NL80211_EXT_FEATURE_MGMT_TX_RANDOM_TA_CONNECTED)) 397 capa->flags |= WPA_DRIVER_FLAGS_MGMT_TX_RANDOM_TA_CONNECTED; 398 if (ext_feature_isset(ext_features, len, 399 NL80211_EXT_FEATURE_SCHED_SCAN_RELATIVE_RSSI)) 400 capa->flags |= WPA_DRIVER_FLAGS_SCHED_SCAN_RELATIVE_RSSI; 401} 402 403 404static void wiphy_info_feature_flags(struct wiphy_info_data *info, 405 struct nlattr *tb) 406{ 407 u32 flags; 408 struct wpa_driver_capa *capa = info->capa; 409 410 if (tb == NULL) 411 return; 412 413 flags = nla_get_u32(tb); 414 415 if (flags & NL80211_FEATURE_SK_TX_STATUS) 416 info->data_tx_status = 1; 417 418 if (flags & NL80211_FEATURE_INACTIVITY_TIMER) 419 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER; 420 421 if (flags & NL80211_FEATURE_SAE) 422 capa->flags |= WPA_DRIVER_FLAGS_SAE; 423 424 if (flags & NL80211_FEATURE_NEED_OBSS_SCAN) 425 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN; 426 427 if (flags & NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE) 428 capa->flags |= WPA_DRIVER_FLAGS_HT_2040_COEX; 429 430 if (flags & NL80211_FEATURE_TDLS_CHANNEL_SWITCH) { 431 wpa_printf(MSG_DEBUG, "nl80211: TDLS channel switch"); 432 capa->flags |= WPA_DRIVER_FLAGS_TDLS_CHANNEL_SWITCH; 433 } 434 435 if (flags & NL80211_FEATURE_P2P_GO_CTWIN) 436 info->p2p_go_ctwindow_supported = 1; 437 438 if (flags & NL80211_FEATURE_LOW_PRIORITY_SCAN) 439 info->have_low_prio_scan = 1; 440 441 if (flags & NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR) 442 info->mac_addr_rand_scan_supported = 1; 443 444 if (flags & NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR) 445 info->mac_addr_rand_sched_scan_supported = 1; 446 447 if (flags & NL80211_FEATURE_STATIC_SMPS) 448 capa->smps_modes |= WPA_DRIVER_SMPS_MODE_STATIC; 449 450 if (flags & NL80211_FEATURE_DYNAMIC_SMPS) 451 capa->smps_modes |= WPA_DRIVER_SMPS_MODE_DYNAMIC; 452 453 if (flags & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION) 454 info->wmm_ac_supported = 1; 455 456 if (flags & NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) 457 capa->rrm_flags |= WPA_DRIVER_FLAGS_DS_PARAM_SET_IE_IN_PROBES; 458 459 if (flags & NL80211_FEATURE_WFA_TPC_IE_IN_PROBES) 460 capa->rrm_flags |= WPA_DRIVER_FLAGS_WFA_TPC_IE_IN_PROBES; 461 462 if (flags & NL80211_FEATURE_QUIET) 463 capa->rrm_flags |= WPA_DRIVER_FLAGS_QUIET; 464 465 if (flags & NL80211_FEATURE_TX_POWER_INSERTION) 466 capa->rrm_flags |= WPA_DRIVER_FLAGS_TX_POWER_INSERTION; 467 468 if (flags & NL80211_FEATURE_HT_IBSS) 469 capa->flags |= WPA_DRIVER_FLAGS_HT_IBSS; 470 471 if (flags & NL80211_FEATURE_FULL_AP_CLIENT_STATE) 472 capa->flags |= WPA_DRIVER_FLAGS_FULL_AP_CLIENT_STATE; 473} 474 475 476static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa, 477 struct nlattr *tb) 478{ 479 u32 protocols; 480 481 if (tb == NULL) 482 return; 483 484 protocols = nla_get_u32(tb); 485 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP " 486 "mode"); 487 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD; 488 capa->probe_resp_offloads = probe_resp_offload_support(protocols); 489} 490 491 492static void wiphy_info_wowlan_triggers(struct wpa_driver_capa *capa, 493 struct nlattr *tb) 494{ 495 struct nlattr *triggers[MAX_NL80211_WOWLAN_TRIG + 1]; 496 497 if (tb == NULL) 498 return; 499 500 if (nla_parse_nested(triggers, MAX_NL80211_WOWLAN_TRIG, 501 tb, NULL)) 502 return; 503 504 if (triggers[NL80211_WOWLAN_TRIG_ANY]) 505 capa->wowlan_triggers.any = 1; 506 if (triggers[NL80211_WOWLAN_TRIG_DISCONNECT]) 507 capa->wowlan_triggers.disconnect = 1; 508 if (triggers[NL80211_WOWLAN_TRIG_MAGIC_PKT]) 509 capa->wowlan_triggers.magic_pkt = 1; 510 if (triggers[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) 511 capa->wowlan_triggers.gtk_rekey_failure = 1; 512 if (triggers[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) 513 capa->wowlan_triggers.eap_identity_req = 1; 514 if (triggers[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) 515 capa->wowlan_triggers.four_way_handshake = 1; 516 if (triggers[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) 517 capa->wowlan_triggers.rfkill_release = 1; 518} 519 520 521static void wiphy_info_extended_capab(struct wpa_driver_nl80211_data *drv, 522 struct nlattr *tb) 523{ 524 int rem = 0, i; 525 struct nlattr *tb1[NL80211_ATTR_MAX + 1], *attr; 526 527 if (!tb || drv->num_iface_ext_capa == NL80211_IFTYPE_MAX) 528 return; 529 530 nla_for_each_nested(attr, tb, rem) { 531 unsigned int len; 532 struct drv_nl80211_ext_capa *capa; 533 534 nla_parse(tb1, NL80211_ATTR_MAX, nla_data(attr), 535 nla_len(attr), NULL); 536 537 if (!tb1[NL80211_ATTR_IFTYPE] || 538 !tb1[NL80211_ATTR_EXT_CAPA] || 539 !tb1[NL80211_ATTR_EXT_CAPA_MASK]) 540 continue; 541 542 capa = &drv->iface_ext_capa[drv->num_iface_ext_capa]; 543 capa->iftype = nla_get_u32(tb1[NL80211_ATTR_IFTYPE]); 544 wpa_printf(MSG_DEBUG, 545 "nl80211: Driver-advertised extended capabilities for interface type %s", 546 nl80211_iftype_str(capa->iftype)); 547 548 len = nla_len(tb1[NL80211_ATTR_EXT_CAPA]); 549 capa->ext_capa = os_malloc(len); 550 if (!capa->ext_capa) 551 goto err; 552 553 os_memcpy(capa->ext_capa, nla_data(tb1[NL80211_ATTR_EXT_CAPA]), 554 len); 555 capa->ext_capa_len = len; 556 wpa_hexdump(MSG_DEBUG, "nl80211: Extended capabilities", 557 capa->ext_capa, capa->ext_capa_len); 558 559 len = nla_len(tb1[NL80211_ATTR_EXT_CAPA_MASK]); 560 capa->ext_capa_mask = os_malloc(len); 561 if (!capa->ext_capa_mask) 562 goto err; 563 564 os_memcpy(capa->ext_capa_mask, 565 nla_data(tb1[NL80211_ATTR_EXT_CAPA_MASK]), len); 566 wpa_hexdump(MSG_DEBUG, "nl80211: Extended capabilities mask", 567 capa->ext_capa_mask, capa->ext_capa_len); 568 569 drv->num_iface_ext_capa++; 570 if (drv->num_iface_ext_capa == NL80211_IFTYPE_MAX) 571 break; 572 } 573 574 return; 575 576err: 577 /* Cleanup allocated memory on error */ 578 for (i = 0; i < NL80211_IFTYPE_MAX; i++) { 579 os_free(drv->iface_ext_capa[i].ext_capa); 580 drv->iface_ext_capa[i].ext_capa = NULL; 581 os_free(drv->iface_ext_capa[i].ext_capa_mask); 582 drv->iface_ext_capa[i].ext_capa_mask = NULL; 583 drv->iface_ext_capa[i].ext_capa_len = 0; 584 } 585 drv->num_iface_ext_capa = 0; 586} 587 588 589static int wiphy_info_handler(struct nl_msg *msg, void *arg) 590{ 591 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 592 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 593 struct wiphy_info_data *info = arg; 594 struct wpa_driver_capa *capa = info->capa; 595 struct wpa_driver_nl80211_data *drv = info->drv; 596 597 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 598 genlmsg_attrlen(gnlh, 0), NULL); 599 600 if (tb[NL80211_ATTR_WIPHY]) 601 drv->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]); 602 603 if (tb[NL80211_ATTR_WIPHY_NAME]) 604 os_strlcpy(drv->phyname, 605 nla_get_string(tb[NL80211_ATTR_WIPHY_NAME]), 606 sizeof(drv->phyname)); 607 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]) 608 capa->max_scan_ssids = 609 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]); 610 611 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]) 612 capa->max_sched_scan_ssids = 613 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]); 614 615 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS] && 616 tb[NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL] && 617 tb[NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS]) { 618 capa->max_sched_scan_plans = 619 nla_get_u32(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS]); 620 621 capa->max_sched_scan_plan_interval = 622 nla_get_u32(tb[NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL]); 623 624 capa->max_sched_scan_plan_iterations = 625 nla_get_u32(tb[NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS]); 626 } 627 628 if (tb[NL80211_ATTR_MAX_MATCH_SETS]) 629 capa->max_match_sets = 630 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]); 631 632 if (tb[NL80211_ATTR_MAC_ACL_MAX]) 633 capa->max_acl_mac_addrs = 634 nla_get_u8(tb[NL80211_ATTR_MAC_ACL_MAX]); 635 636 wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]); 637 wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]); 638 wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]); 639 wiphy_info_cipher_suites(info, tb[NL80211_ATTR_CIPHER_SUITES]); 640 641 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) { 642 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based " 643 "off-channel TX"); 644 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX; 645 } 646 647 if (tb[NL80211_ATTR_ROAM_SUPPORT]) { 648 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming"); 649 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION; 650 } 651 652 wiphy_info_max_roc(capa, 653 tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]); 654 655 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD]) 656 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD; 657 658 wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT], 659 tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]); 660 661 if (tb[NL80211_ATTR_DEVICE_AP_SME]) 662 info->device_ap_sme = 1; 663 664 wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]); 665 wiphy_info_ext_feature_flags(info, tb[NL80211_ATTR_EXT_FEATURES]); 666 wiphy_info_probe_resp_offload(capa, 667 tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]); 668 669 if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] && 670 drv->extended_capa == NULL) { 671 drv->extended_capa = 672 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 673 if (drv->extended_capa) { 674 os_memcpy(drv->extended_capa, 675 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 676 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 677 drv->extended_capa_len = 678 nla_len(tb[NL80211_ATTR_EXT_CAPA]); 679 wpa_hexdump(MSG_DEBUG, 680 "nl80211: Driver-advertised extended capabilities (default)", 681 drv->extended_capa, drv->extended_capa_len); 682 } 683 drv->extended_capa_mask = 684 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA_MASK])); 685 if (drv->extended_capa_mask) { 686 os_memcpy(drv->extended_capa_mask, 687 nla_data(tb[NL80211_ATTR_EXT_CAPA_MASK]), 688 nla_len(tb[NL80211_ATTR_EXT_CAPA_MASK])); 689 wpa_hexdump(MSG_DEBUG, 690 "nl80211: Driver-advertised extended capabilities mask (default)", 691 drv->extended_capa_mask, 692 drv->extended_capa_len); 693 } else { 694 os_free(drv->extended_capa); 695 drv->extended_capa = NULL; 696 drv->extended_capa_len = 0; 697 } 698 } 699 700 wiphy_info_extended_capab(drv, tb[NL80211_ATTR_IFTYPE_EXT_CAPA]); 701 702 if (tb[NL80211_ATTR_VENDOR_DATA]) { 703 struct nlattr *nl; 704 int rem; 705 706 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_DATA], rem) { 707 struct nl80211_vendor_cmd_info *vinfo; 708 if (nla_len(nl) != sizeof(*vinfo)) { 709 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info"); 710 continue; 711 } 712 vinfo = nla_data(nl); 713 if (vinfo->vendor_id == OUI_QCA) { 714 switch (vinfo->subcmd) { 715 case QCA_NL80211_VENDOR_SUBCMD_TEST: 716 drv->vendor_cmd_test_avail = 1; 717 break; 718#ifdef CONFIG_DRIVER_NL80211_QCA 719 case QCA_NL80211_VENDOR_SUBCMD_ROAMING: 720 drv->roaming_vendor_cmd_avail = 1; 721 break; 722 case QCA_NL80211_VENDOR_SUBCMD_DFS_CAPABILITY: 723 drv->dfs_vendor_cmd_avail = 1; 724 break; 725 case QCA_NL80211_VENDOR_SUBCMD_GET_FEATURES: 726 drv->get_features_vendor_cmd_avail = 1; 727 break; 728 case QCA_NL80211_VENDOR_SUBCMD_GET_PREFERRED_FREQ_LIST: 729 drv->get_pref_freq_list = 1; 730 break; 731 case QCA_NL80211_VENDOR_SUBCMD_SET_PROBABLE_OPER_CHANNEL: 732 drv->set_prob_oper_freq = 1; 733 break; 734 case QCA_NL80211_VENDOR_SUBCMD_DO_ACS: 735 drv->capa.flags |= 736 WPA_DRIVER_FLAGS_ACS_OFFLOAD; 737 break; 738 case QCA_NL80211_VENDOR_SUBCMD_SETBAND: 739 drv->setband_vendor_cmd_avail = 1; 740 break; 741 case QCA_NL80211_VENDOR_SUBCMD_TRIGGER_SCAN: 742 drv->scan_vendor_cmd_avail = 1; 743 break; 744 case QCA_NL80211_VENDOR_SUBCMD_SET_WIFI_CONFIGURATION: 745 drv->set_wifi_conf_vendor_cmd_avail = 1; 746 break; 747 case QCA_NL80211_VENDOR_SUBCMD_GET_HE_CAPABILITIES: 748 drv->he_capab_vendor_cmd_avail = 1; 749 break; 750#endif /* CONFIG_DRIVER_NL80211_QCA */ 751 } 752 } 753 754 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor command: vendor_id=0x%x subcmd=%u", 755 vinfo->vendor_id, vinfo->subcmd); 756 } 757 } 758 759 if (tb[NL80211_ATTR_VENDOR_EVENTS]) { 760 struct nlattr *nl; 761 int rem; 762 763 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_EVENTS], rem) { 764 struct nl80211_vendor_cmd_info *vinfo; 765 if (nla_len(nl) != sizeof(*vinfo)) { 766 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info"); 767 continue; 768 } 769 vinfo = nla_data(nl); 770 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor event: vendor_id=0x%x subcmd=%u", 771 vinfo->vendor_id, vinfo->subcmd); 772 } 773 } 774 775 wiphy_info_wowlan_triggers(capa, 776 tb[NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED]); 777 778 if (tb[NL80211_ATTR_MAX_AP_ASSOC_STA]) 779 capa->max_stations = 780 nla_get_u32(tb[NL80211_ATTR_MAX_AP_ASSOC_STA]); 781 782 if (tb[NL80211_ATTR_MAX_CSA_COUNTERS]) 783 capa->max_csa_counters = 784 nla_get_u8(tb[NL80211_ATTR_MAX_CSA_COUNTERS]); 785 786 return NL_SKIP; 787} 788 789 790static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv, 791 struct wiphy_info_data *info) 792{ 793 u32 feat; 794 struct nl_msg *msg; 795 int flags = 0; 796 797 os_memset(info, 0, sizeof(*info)); 798 info->capa = &drv->capa; 799 info->drv = drv; 800 801 feat = get_nl80211_protocol_features(drv); 802 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 803 flags = NLM_F_DUMP; 804 msg = nl80211_cmd_msg(drv->first_bss, flags, NL80211_CMD_GET_WIPHY); 805 if (!msg || nla_put_flag(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP)) { 806 nlmsg_free(msg); 807 return -1; 808 } 809 810 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info)) 811 return -1; 812 813 if (info->auth_supported) 814 drv->capa.flags |= WPA_DRIVER_FLAGS_SME; 815 else if (!info->connect_supported) { 816 wpa_printf(MSG_INFO, "nl80211: Driver does not support " 817 "authentication/association or connect commands"); 818 info->error = 1; 819 } 820 821 if (info->p2p_go_supported && info->p2p_client_supported) 822 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE; 823 if (info->p2p_concurrent) { 824 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 825 "interface (driver advertised support)"); 826 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 827 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 828 } 829 if (info->num_multichan_concurrent > 1) { 830 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel " 831 "concurrent (driver advertised support)"); 832 drv->capa.num_multichan_concurrent = 833 info->num_multichan_concurrent; 834 } 835 if (drv->capa.flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) 836 wpa_printf(MSG_DEBUG, "nl80211: use P2P_DEVICE support"); 837 838 /* default to 5000 since early versions of mac80211 don't set it */ 839 if (!drv->capa.max_remain_on_chan) 840 drv->capa.max_remain_on_chan = 5000; 841 842 drv->capa.wmm_ac_supported = info->wmm_ac_supported; 843 844 drv->capa.mac_addr_rand_sched_scan_supported = 845 info->mac_addr_rand_sched_scan_supported; 846 drv->capa.mac_addr_rand_scan_supported = 847 info->mac_addr_rand_scan_supported; 848 849 if (info->channel_switch_supported) { 850 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_CSA; 851 if (!drv->capa.max_csa_counters) 852 drv->capa.max_csa_counters = 1; 853 } 854 855 if (!drv->capa.max_sched_scan_plans) { 856 drv->capa.max_sched_scan_plans = 1; 857 drv->capa.max_sched_scan_plan_interval = UINT32_MAX; 858 drv->capa.max_sched_scan_plan_iterations = 0; 859 } 860 861 return 0; 862} 863 864 865#ifdef CONFIG_DRIVER_NL80211_QCA 866 867static int dfs_info_handler(struct nl_msg *msg, void *arg) 868{ 869 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 870 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 871 int *dfs_capability_ptr = arg; 872 873 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 874 genlmsg_attrlen(gnlh, 0), NULL); 875 876 if (tb[NL80211_ATTR_VENDOR_DATA]) { 877 struct nlattr *nl_vend = tb[NL80211_ATTR_VENDOR_DATA]; 878 struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_MAX + 1]; 879 880 nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_MAX, 881 nla_data(nl_vend), nla_len(nl_vend), NULL); 882 883 if (tb_vendor[QCA_WLAN_VENDOR_ATTR_DFS]) { 884 u32 val; 885 val = nla_get_u32(tb_vendor[QCA_WLAN_VENDOR_ATTR_DFS]); 886 wpa_printf(MSG_DEBUG, "nl80211: DFS offload capability: %u", 887 val); 888 *dfs_capability_ptr = val; 889 } 890 } 891 892 return NL_SKIP; 893} 894 895 896static void qca_nl80211_check_dfs_capa(struct wpa_driver_nl80211_data *drv) 897{ 898 struct nl_msg *msg; 899 int dfs_capability = 0; 900 int ret; 901 902 if (!drv->dfs_vendor_cmd_avail) 903 return; 904 905 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || 906 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || 907 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, 908 QCA_NL80211_VENDOR_SUBCMD_DFS_CAPABILITY)) { 909 nlmsg_free(msg); 910 return; 911 } 912 913 ret = send_and_recv_msgs(drv, msg, dfs_info_handler, &dfs_capability); 914 if (!ret && dfs_capability) 915 drv->capa.flags |= WPA_DRIVER_FLAGS_DFS_OFFLOAD; 916} 917 918 919static int qca_nl80211_he_capab_handler(struct nl_msg *msg, void *arg) 920{ 921 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 922 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 923 struct he_capabilities *he_capab = arg; 924 struct nlattr *nl_vend; 925 struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_HE_CAPABILITIES_MAX + 1]; 926 size_t len; 927 928 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 929 genlmsg_attrlen(gnlh, 0), NULL); 930 931 if (!tb[NL80211_ATTR_VENDOR_DATA]) 932 return NL_SKIP; 933 934 nl_vend = tb[NL80211_ATTR_VENDOR_DATA]; 935 nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_HE_CAPABILITIES_MAX, 936 nla_data(nl_vend), nla_len(nl_vend), NULL); 937 938 if (tb_vendor[QCA_WLAN_VENDOR_ATTR_HE_SUPPORTED]) { 939 u8 he_supported; 940 941 he_supported = nla_get_u8( 942 tb_vendor[QCA_WLAN_VENDOR_ATTR_HE_SUPPORTED]); 943 wpa_printf(MSG_DEBUG, "nl80211: HE capabilities supported: %u", 944 he_supported); 945 he_capab->he_supported = he_supported; 946 if (!he_supported) 947 return NL_SKIP; 948 } 949 950 if (tb_vendor[QCA_WLAN_VENDOR_ATTR_PHY_CAPAB]) { 951 len = nla_len(tb_vendor[QCA_WLAN_VENDOR_ATTR_PHY_CAPAB]); 952 953 if (len > sizeof(he_capab->phy_cap)) 954 len = sizeof(he_capab->phy_cap); 955 os_memcpy(he_capab->phy_cap, 956 nla_data(tb_vendor[QCA_WLAN_VENDOR_ATTR_PHY_CAPAB]), 957 len); 958 } 959 960 if (tb_vendor[QCA_WLAN_VENDOR_ATTR_MAC_CAPAB]) 961 he_capab->mac_cap = 962 nla_get_u32(tb_vendor[QCA_WLAN_VENDOR_ATTR_MAC_CAPAB]); 963 964 if (tb_vendor[QCA_WLAN_VENDOR_ATTR_HE_MCS]) 965 he_capab->mcs = 966 nla_get_u32(tb_vendor[QCA_WLAN_VENDOR_ATTR_HE_MCS]); 967 968 if (tb_vendor[QCA_WLAN_VENDOR_ATTR_NUM_SS]) 969 he_capab->ppet.numss_m1 = 970 nla_get_u32(tb_vendor[QCA_WLAN_VENDOR_ATTR_NUM_SS]); 971 972 if (tb_vendor[QCA_WLAN_VENDOR_ATTR_RU_IDX_MASK]) 973 he_capab->ppet.ru_count = 974 nla_get_u32(tb_vendor[QCA_WLAN_VENDOR_ATTR_RU_IDX_MASK]); 975 976 if (tb_vendor[QCA_WLAN_VENDOR_ATTR_PPE_THRESHOLD]) { 977 len = nla_len(tb_vendor[QCA_WLAN_VENDOR_ATTR_PPE_THRESHOLD]); 978 979 if (len > sizeof(he_capab->ppet.ppet16_ppet8_ru3_ru0)) 980 len = sizeof(he_capab->ppet.ppet16_ppet8_ru3_ru0); 981 os_memcpy(he_capab->ppet.ppet16_ppet8_ru3_ru0, 982 nla_data(tb_vendor[QCA_WLAN_VENDOR_ATTR_PPE_THRESHOLD]), 983 len); 984 } 985 986 return NL_SKIP; 987} 988 989 990static void qca_nl80211_check_he_capab(struct wpa_driver_nl80211_data *drv) 991{ 992 struct nl_msg *msg; 993 int ret; 994 995 if (!drv->he_capab_vendor_cmd_avail) 996 return; 997 998 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || 999 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || 1000 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, 1001 QCA_NL80211_VENDOR_SUBCMD_GET_HE_CAPABILITIES)) { 1002 nlmsg_free(msg); 1003 return; 1004 } 1005 1006 ret = send_and_recv_msgs(drv, msg, qca_nl80211_he_capab_handler, 1007 &drv->he_capab); 1008 if (!ret && drv->he_capab.he_supported) 1009 drv->capa.flags |= WPA_DRIVER_FLAGS_HE_CAPABILITIES; 1010} 1011 1012 1013struct features_info { 1014 u8 *flags; 1015 size_t flags_len; 1016 struct wpa_driver_capa *capa; 1017}; 1018 1019 1020static int features_info_handler(struct nl_msg *msg, void *arg) 1021{ 1022 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 1023 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 1024 struct features_info *info = arg; 1025 struct nlattr *nl_vend, *attr; 1026 1027 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 1028 genlmsg_attrlen(gnlh, 0), NULL); 1029 1030 nl_vend = tb[NL80211_ATTR_VENDOR_DATA]; 1031 if (nl_vend) { 1032 struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_MAX + 1]; 1033 1034 nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_MAX, 1035 nla_data(nl_vend), nla_len(nl_vend), NULL); 1036 1037 attr = tb_vendor[QCA_WLAN_VENDOR_ATTR_FEATURE_FLAGS]; 1038 if (attr) { 1039 int len = nla_len(attr); 1040 info->flags = os_malloc(len); 1041 if (info->flags != NULL) { 1042 os_memcpy(info->flags, nla_data(attr), len); 1043 info->flags_len = len; 1044 } 1045 } 1046 attr = tb_vendor[QCA_WLAN_VENDOR_ATTR_CONCURRENCY_CAPA]; 1047 if (attr) 1048 info->capa->conc_capab = nla_get_u32(attr); 1049 1050 attr = tb_vendor[ 1051 QCA_WLAN_VENDOR_ATTR_MAX_CONCURRENT_CHANNELS_2_4_BAND]; 1052 if (attr) 1053 info->capa->max_conc_chan_2_4 = nla_get_u32(attr); 1054 1055 attr = tb_vendor[ 1056 QCA_WLAN_VENDOR_ATTR_MAX_CONCURRENT_CHANNELS_5_0_BAND]; 1057 if (attr) 1058 info->capa->max_conc_chan_5_0 = nla_get_u32(attr); 1059 } 1060 1061 return NL_SKIP; 1062} 1063 1064 1065static int check_feature(enum qca_wlan_vendor_features feature, 1066 struct features_info *info) 1067{ 1068 size_t idx = feature / 8; 1069 1070 return (idx < info->flags_len) && 1071 (info->flags[idx] & BIT(feature % 8)); 1072} 1073 1074 1075static void qca_nl80211_get_features(struct wpa_driver_nl80211_data *drv) 1076{ 1077 struct nl_msg *msg; 1078 struct features_info info; 1079 int ret; 1080 1081 if (!drv->get_features_vendor_cmd_avail) 1082 return; 1083 1084 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || 1085 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || 1086 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, 1087 QCA_NL80211_VENDOR_SUBCMD_GET_FEATURES)) { 1088 nlmsg_free(msg); 1089 return; 1090 } 1091 1092 os_memset(&info, 0, sizeof(info)); 1093 info.capa = &drv->capa; 1094 ret = send_and_recv_msgs(drv, msg, features_info_handler, &info); 1095 if (ret || !info.flags) 1096 return; 1097 1098 if (check_feature(QCA_WLAN_VENDOR_FEATURE_KEY_MGMT_OFFLOAD, &info)) 1099 drv->capa.flags |= WPA_DRIVER_FLAGS_KEY_MGMT_OFFLOAD; 1100 1101 if (check_feature(QCA_WLAN_VENDOR_FEATURE_SUPPORT_HW_MODE_ANY, &info)) 1102 drv->capa.flags |= WPA_DRIVER_FLAGS_SUPPORT_HW_MODE_ANY; 1103 1104 if (check_feature(QCA_WLAN_VENDOR_FEATURE_OFFCHANNEL_SIMULTANEOUS, 1105 &info)) 1106 drv->capa.flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS; 1107 if (check_feature(QCA_WLAN_VENDOR_FEATURE_P2P_LISTEN_OFFLOAD, &info)) 1108 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_LISTEN_OFFLOAD; 1109 os_free(info.flags); 1110} 1111 1112#endif /* CONFIG_DRIVER_NL80211_QCA */ 1113 1114 1115int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv) 1116{ 1117 struct wiphy_info_data info; 1118 if (wpa_driver_nl80211_get_info(drv, &info)) 1119 return -1; 1120 1121 if (info.error) 1122 return -1; 1123 1124 drv->has_capability = 1; 1125 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA | 1126 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK | 1127 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 | 1128 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK | 1129 WPA_DRIVER_CAPA_KEY_MGMT_SUITE_B | 1130 WPA_DRIVER_CAPA_KEY_MGMT_SUITE_B_192; 1131 drv->capa.auth = WPA_DRIVER_AUTH_OPEN | 1132 WPA_DRIVER_AUTH_SHARED | 1133 WPA_DRIVER_AUTH_LEAP; 1134 1135 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES; 1136 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE; 1137 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 1138 1139 /* 1140 * As all cfg80211 drivers must support cases where the AP interface is 1141 * removed without the knowledge of wpa_supplicant/hostapd, e.g., in 1142 * case that the user space daemon has crashed, they must be able to 1143 * cleanup all stations and key entries in the AP tear down flow. Thus, 1144 * this flag can/should always be set for cfg80211 drivers. 1145 */ 1146 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT; 1147 1148 if (!info.device_ap_sme) { 1149 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS; 1150 1151 /* 1152 * No AP SME is currently assumed to also indicate no AP MLME 1153 * in the driver/firmware. 1154 */ 1155 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME; 1156 } 1157 1158 drv->device_ap_sme = info.device_ap_sme; 1159 drv->poll_command_supported = info.poll_command_supported; 1160 drv->data_tx_status = info.data_tx_status; 1161 drv->p2p_go_ctwindow_supported = info.p2p_go_ctwindow_supported; 1162 if (info.set_qos_map_supported) 1163 drv->capa.flags |= WPA_DRIVER_FLAGS_QOS_MAPPING; 1164 drv->have_low_prio_scan = info.have_low_prio_scan; 1165 1166 /* 1167 * If poll command and tx status are supported, mac80211 is new enough 1168 * to have everything we need to not need monitor interfaces. 1169 */ 1170 drv->use_monitor = !info.device_ap_sme && 1171 (!info.poll_command_supported || !info.data_tx_status); 1172 1173 /* 1174 * If we aren't going to use monitor interfaces, but the 1175 * driver doesn't support data TX status, we won't get TX 1176 * status for EAPOL frames. 1177 */ 1178 if (!drv->use_monitor && !info.data_tx_status) 1179 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 1180 1181#ifdef CONFIG_DRIVER_NL80211_QCA 1182 qca_nl80211_check_dfs_capa(drv); 1183 qca_nl80211_get_features(drv); 1184 qca_nl80211_check_he_capab(drv); 1185 1186 /* 1187 * To enable offchannel simultaneous support in wpa_supplicant, the 1188 * underlying driver needs to support the same along with offchannel TX. 1189 * Offchannel TX support is needed since remain_on_channel and 1190 * action_tx use some common data structures and hence cannot be 1191 * scheduled simultaneously. 1192 */ 1193 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX)) 1194 drv->capa.flags &= ~WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS; 1195#endif /* CONFIG_DRIVER_NL80211_QCA */ 1196 1197 return 0; 1198} 1199 1200 1201struct phy_info_arg { 1202 u16 *num_modes; 1203 struct hostapd_hw_modes *modes; 1204 int last_mode, last_chan_idx; 1205 int failed; 1206}; 1207 1208static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa, 1209 struct nlattr *ampdu_factor, 1210 struct nlattr *ampdu_density, 1211 struct nlattr *mcs_set) 1212{ 1213 if (capa) 1214 mode->ht_capab = nla_get_u16(capa); 1215 1216 if (ampdu_factor) 1217 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03; 1218 1219 if (ampdu_density) 1220 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2; 1221 1222 if (mcs_set && nla_len(mcs_set) >= 16) { 1223 u8 *mcs; 1224 mcs = nla_data(mcs_set); 1225 os_memcpy(mode->mcs_set, mcs, 16); 1226 } 1227} 1228 1229 1230static void phy_info_vht_capa(struct hostapd_hw_modes *mode, 1231 struct nlattr *capa, 1232 struct nlattr *mcs_set) 1233{ 1234 if (capa) 1235 mode->vht_capab = nla_get_u32(capa); 1236 1237 if (mcs_set && nla_len(mcs_set) >= 8) { 1238 u8 *mcs; 1239 mcs = nla_data(mcs_set); 1240 os_memcpy(mode->vht_mcs_set, mcs, 8); 1241 } 1242} 1243 1244 1245static void phy_info_freq(struct hostapd_hw_modes *mode, 1246 struct hostapd_channel_data *chan, 1247 struct nlattr *tb_freq[]) 1248{ 1249 u8 channel; 1250 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]); 1251 chan->flag = 0; 1252 chan->dfs_cac_ms = 0; 1253 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES) 1254 chan->chan = channel; 1255 1256 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) 1257 chan->flag |= HOSTAPD_CHAN_DISABLED; 1258 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IR]) 1259 chan->flag |= HOSTAPD_CHAN_NO_IR; 1260 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR]) 1261 chan->flag |= HOSTAPD_CHAN_RADAR; 1262 if (tb_freq[NL80211_FREQUENCY_ATTR_INDOOR_ONLY]) 1263 chan->flag |= HOSTAPD_CHAN_INDOOR_ONLY; 1264 if (tb_freq[NL80211_FREQUENCY_ATTR_GO_CONCURRENT]) 1265 chan->flag |= HOSTAPD_CHAN_GO_CONCURRENT; 1266 1267 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) { 1268 enum nl80211_dfs_state state = 1269 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]); 1270 1271 switch (state) { 1272 case NL80211_DFS_USABLE: 1273 chan->flag |= HOSTAPD_CHAN_DFS_USABLE; 1274 break; 1275 case NL80211_DFS_AVAILABLE: 1276 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE; 1277 break; 1278 case NL80211_DFS_UNAVAILABLE: 1279 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE; 1280 break; 1281 } 1282 } 1283 1284 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME]) { 1285 chan->dfs_cac_ms = nla_get_u32( 1286 tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME]); 1287 } 1288} 1289 1290 1291static int phy_info_freqs(struct phy_info_arg *phy_info, 1292 struct hostapd_hw_modes *mode, struct nlattr *tb) 1293{ 1294 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 1295 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 }, 1296 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG }, 1297 [NL80211_FREQUENCY_ATTR_NO_IR] = { .type = NLA_FLAG }, 1298 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG }, 1299 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 }, 1300 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 }, 1301 }; 1302 int new_channels = 0; 1303 struct hostapd_channel_data *channel; 1304 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1]; 1305 struct nlattr *nl_freq; 1306 int rem_freq, idx; 1307 1308 if (tb == NULL) 1309 return NL_OK; 1310 1311 nla_for_each_nested(nl_freq, tb, rem_freq) { 1312 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 1313 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 1314 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 1315 continue; 1316 new_channels++; 1317 } 1318 1319 channel = os_realloc_array(mode->channels, 1320 mode->num_channels + new_channels, 1321 sizeof(struct hostapd_channel_data)); 1322 if (!channel) 1323 return NL_STOP; 1324 1325 mode->channels = channel; 1326 mode->num_channels += new_channels; 1327 1328 idx = phy_info->last_chan_idx; 1329 1330 nla_for_each_nested(nl_freq, tb, rem_freq) { 1331 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 1332 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 1333 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 1334 continue; 1335 phy_info_freq(mode, &mode->channels[idx], tb_freq); 1336 idx++; 1337 } 1338 phy_info->last_chan_idx = idx; 1339 1340 return NL_OK; 1341} 1342 1343 1344static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb) 1345{ 1346 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = { 1347 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 }, 1348 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = 1349 { .type = NLA_FLAG }, 1350 }; 1351 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1]; 1352 struct nlattr *nl_rate; 1353 int rem_rate, idx; 1354 1355 if (tb == NULL) 1356 return NL_OK; 1357 1358 nla_for_each_nested(nl_rate, tb, rem_rate) { 1359 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 1360 nla_data(nl_rate), nla_len(nl_rate), 1361 rate_policy); 1362 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 1363 continue; 1364 mode->num_rates++; 1365 } 1366 1367 mode->rates = os_calloc(mode->num_rates, sizeof(int)); 1368 if (!mode->rates) 1369 return NL_STOP; 1370 1371 idx = 0; 1372 1373 nla_for_each_nested(nl_rate, tb, rem_rate) { 1374 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 1375 nla_data(nl_rate), nla_len(nl_rate), 1376 rate_policy); 1377 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 1378 continue; 1379 mode->rates[idx] = nla_get_u32( 1380 tb_rate[NL80211_BITRATE_ATTR_RATE]); 1381 idx++; 1382 } 1383 1384 return NL_OK; 1385} 1386 1387 1388static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band) 1389{ 1390 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1]; 1391 struct hostapd_hw_modes *mode; 1392 int ret; 1393 1394 if (phy_info->last_mode != nl_band->nla_type) { 1395 mode = os_realloc_array(phy_info->modes, 1396 *phy_info->num_modes + 1, 1397 sizeof(*mode)); 1398 if (!mode) { 1399 phy_info->failed = 1; 1400 return NL_STOP; 1401 } 1402 phy_info->modes = mode; 1403 1404 mode = &phy_info->modes[*(phy_info->num_modes)]; 1405 os_memset(mode, 0, sizeof(*mode)); 1406 mode->mode = NUM_HOSTAPD_MODES; 1407 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN | 1408 HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN; 1409 1410 /* 1411 * Unsupported VHT MCS stream is defined as value 3, so the VHT 1412 * MCS RX/TX map must be initialized with 0xffff to mark all 8 1413 * possible streams as unsupported. This will be overridden if 1414 * driver advertises VHT support. 1415 */ 1416 mode->vht_mcs_set[0] = 0xff; 1417 mode->vht_mcs_set[1] = 0xff; 1418 mode->vht_mcs_set[4] = 0xff; 1419 mode->vht_mcs_set[5] = 0xff; 1420 1421 *(phy_info->num_modes) += 1; 1422 phy_info->last_mode = nl_band->nla_type; 1423 phy_info->last_chan_idx = 0; 1424 } else 1425 mode = &phy_info->modes[*(phy_info->num_modes) - 1]; 1426 1427 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band), 1428 nla_len(nl_band), NULL); 1429 1430 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA], 1431 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR], 1432 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY], 1433 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]); 1434 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA], 1435 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]); 1436 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]); 1437 if (ret == NL_OK) 1438 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]); 1439 if (ret != NL_OK) { 1440 phy_info->failed = 1; 1441 return ret; 1442 } 1443 1444 return NL_OK; 1445} 1446 1447 1448static int phy_info_handler(struct nl_msg *msg, void *arg) 1449{ 1450 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 1451 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 1452 struct phy_info_arg *phy_info = arg; 1453 struct nlattr *nl_band; 1454 int rem_band; 1455 1456 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 1457 genlmsg_attrlen(gnlh, 0), NULL); 1458 1459 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS]) 1460 return NL_SKIP; 1461 1462 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) 1463 { 1464 int res = phy_info_band(phy_info, nl_band); 1465 if (res != NL_OK) 1466 return res; 1467 } 1468 1469 return NL_SKIP; 1470} 1471 1472 1473static struct hostapd_hw_modes * 1474wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes, 1475 u16 *num_modes) 1476{ 1477 u16 m; 1478 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode; 1479 int i, mode11g_idx = -1; 1480 1481 /* heuristic to set up modes */ 1482 for (m = 0; m < *num_modes; m++) { 1483 if (!modes[m].num_channels) 1484 continue; 1485 if (modes[m].channels[0].freq < 4000) { 1486 modes[m].mode = HOSTAPD_MODE_IEEE80211B; 1487 for (i = 0; i < modes[m].num_rates; i++) { 1488 if (modes[m].rates[i] > 200) { 1489 modes[m].mode = HOSTAPD_MODE_IEEE80211G; 1490 break; 1491 } 1492 } 1493 } else if (modes[m].channels[0].freq > 50000) 1494 modes[m].mode = HOSTAPD_MODE_IEEE80211AD; 1495 else 1496 modes[m].mode = HOSTAPD_MODE_IEEE80211A; 1497 } 1498 1499 /* If only 802.11g mode is included, use it to construct matching 1500 * 802.11b mode data. */ 1501 1502 for (m = 0; m < *num_modes; m++) { 1503 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B) 1504 return modes; /* 802.11b already included */ 1505 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G) 1506 mode11g_idx = m; 1507 } 1508 1509 if (mode11g_idx < 0) 1510 return modes; /* 2.4 GHz band not supported at all */ 1511 1512 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes)); 1513 if (nmodes == NULL) 1514 return modes; /* Could not add 802.11b mode */ 1515 1516 mode = &nmodes[*num_modes]; 1517 os_memset(mode, 0, sizeof(*mode)); 1518 (*num_modes)++; 1519 modes = nmodes; 1520 1521 mode->mode = HOSTAPD_MODE_IEEE80211B; 1522 1523 mode11g = &modes[mode11g_idx]; 1524 mode->num_channels = mode11g->num_channels; 1525 mode->channels = os_malloc(mode11g->num_channels * 1526 sizeof(struct hostapd_channel_data)); 1527 if (mode->channels == NULL) { 1528 (*num_modes)--; 1529 return modes; /* Could not add 802.11b mode */ 1530 } 1531 os_memcpy(mode->channels, mode11g->channels, 1532 mode11g->num_channels * sizeof(struct hostapd_channel_data)); 1533 1534 mode->num_rates = 0; 1535 mode->rates = os_malloc(4 * sizeof(int)); 1536 if (mode->rates == NULL) { 1537 os_free(mode->channels); 1538 (*num_modes)--; 1539 return modes; /* Could not add 802.11b mode */ 1540 } 1541 1542 for (i = 0; i < mode11g->num_rates; i++) { 1543 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 && 1544 mode11g->rates[i] != 55 && mode11g->rates[i] != 110) 1545 continue; 1546 mode->rates[mode->num_rates] = mode11g->rates[i]; 1547 mode->num_rates++; 1548 if (mode->num_rates == 4) 1549 break; 1550 } 1551 1552 if (mode->num_rates == 0) { 1553 os_free(mode->channels); 1554 os_free(mode->rates); 1555 (*num_modes)--; 1556 return modes; /* No 802.11b rates */ 1557 } 1558 1559 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g " 1560 "information"); 1561 1562 return modes; 1563} 1564 1565 1566static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start, 1567 int end) 1568{ 1569 int c; 1570 1571 for (c = 0; c < mode->num_channels; c++) { 1572 struct hostapd_channel_data *chan = &mode->channels[c]; 1573 if (chan->freq - 10 >= start && chan->freq + 10 <= end) 1574 chan->flag |= HOSTAPD_CHAN_HT40; 1575 } 1576} 1577 1578 1579static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start, 1580 int end) 1581{ 1582 int c; 1583 1584 for (c = 0; c < mode->num_channels; c++) { 1585 struct hostapd_channel_data *chan = &mode->channels[c]; 1586 if (!(chan->flag & HOSTAPD_CHAN_HT40)) 1587 continue; 1588 if (chan->freq - 30 >= start && chan->freq - 10 <= end) 1589 chan->flag |= HOSTAPD_CHAN_HT40MINUS; 1590 if (chan->freq + 10 >= start && chan->freq + 30 <= end) 1591 chan->flag |= HOSTAPD_CHAN_HT40PLUS; 1592 } 1593} 1594 1595 1596static void nl80211_reg_rule_max_eirp(u32 start, u32 end, u32 max_eirp, 1597 struct phy_info_arg *results) 1598{ 1599 u16 m; 1600 1601 for (m = 0; m < *results->num_modes; m++) { 1602 int c; 1603 struct hostapd_hw_modes *mode = &results->modes[m]; 1604 1605 for (c = 0; c < mode->num_channels; c++) { 1606 struct hostapd_channel_data *chan = &mode->channels[c]; 1607 if ((u32) chan->freq - 10 >= start && 1608 (u32) chan->freq + 10 <= end) 1609 chan->max_tx_power = max_eirp; 1610 } 1611 } 1612} 1613 1614 1615static void nl80211_reg_rule_ht40(u32 start, u32 end, 1616 struct phy_info_arg *results) 1617{ 1618 u16 m; 1619 1620 for (m = 0; m < *results->num_modes; m++) { 1621 if (!(results->modes[m].ht_capab & 1622 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 1623 continue; 1624 nl80211_set_ht40_mode(&results->modes[m], start, end); 1625 } 1626} 1627 1628 1629static void nl80211_reg_rule_sec(struct nlattr *tb[], 1630 struct phy_info_arg *results) 1631{ 1632 u32 start, end, max_bw; 1633 u16 m; 1634 1635 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 1636 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 1637 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 1638 return; 1639 1640 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 1641 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 1642 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 1643 1644 if (max_bw < 20) 1645 return; 1646 1647 for (m = 0; m < *results->num_modes; m++) { 1648 if (!(results->modes[m].ht_capab & 1649 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 1650 continue; 1651 nl80211_set_ht40_mode_sec(&results->modes[m], start, end); 1652 } 1653} 1654 1655 1656static void nl80211_set_vht_mode(struct hostapd_hw_modes *mode, int start, 1657 int end, int max_bw) 1658{ 1659 int c; 1660 1661 for (c = 0; c < mode->num_channels; c++) { 1662 struct hostapd_channel_data *chan = &mode->channels[c]; 1663 if (chan->freq - 10 >= start && chan->freq + 70 <= end) 1664 chan->flag |= HOSTAPD_CHAN_VHT_10_70; 1665 1666 if (chan->freq - 30 >= start && chan->freq + 50 <= end) 1667 chan->flag |= HOSTAPD_CHAN_VHT_30_50; 1668 1669 if (chan->freq - 50 >= start && chan->freq + 30 <= end) 1670 chan->flag |= HOSTAPD_CHAN_VHT_50_30; 1671 1672 if (chan->freq - 70 >= start && chan->freq + 10 <= end) 1673 chan->flag |= HOSTAPD_CHAN_VHT_70_10; 1674 1675 if (max_bw >= 160) { 1676 if (chan->freq - 10 >= start && chan->freq + 150 <= end) 1677 chan->flag |= HOSTAPD_CHAN_VHT_10_150; 1678 1679 if (chan->freq - 30 >= start && chan->freq + 130 <= end) 1680 chan->flag |= HOSTAPD_CHAN_VHT_30_130; 1681 1682 if (chan->freq - 50 >= start && chan->freq + 110 <= end) 1683 chan->flag |= HOSTAPD_CHAN_VHT_50_110; 1684 1685 if (chan->freq - 70 >= start && chan->freq + 90 <= end) 1686 chan->flag |= HOSTAPD_CHAN_VHT_70_90; 1687 1688 if (chan->freq - 90 >= start && chan->freq + 70 <= end) 1689 chan->flag |= HOSTAPD_CHAN_VHT_90_70; 1690 1691 if (chan->freq - 110 >= start && chan->freq + 50 <= end) 1692 chan->flag |= HOSTAPD_CHAN_VHT_110_50; 1693 1694 if (chan->freq - 130 >= start && chan->freq + 30 <= end) 1695 chan->flag |= HOSTAPD_CHAN_VHT_130_30; 1696 1697 if (chan->freq - 150 >= start && chan->freq + 10 <= end) 1698 chan->flag |= HOSTAPD_CHAN_VHT_150_10; 1699 } 1700 } 1701} 1702 1703 1704static void nl80211_reg_rule_vht(struct nlattr *tb[], 1705 struct phy_info_arg *results) 1706{ 1707 u32 start, end, max_bw; 1708 u16 m; 1709 1710 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 1711 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 1712 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 1713 return; 1714 1715 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 1716 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 1717 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 1718 1719 if (max_bw < 80) 1720 return; 1721 1722 for (m = 0; m < *results->num_modes; m++) { 1723 if (!(results->modes[m].ht_capab & 1724 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 1725 continue; 1726 /* TODO: use a real VHT support indication */ 1727 if (!results->modes[m].vht_capab) 1728 continue; 1729 1730 nl80211_set_vht_mode(&results->modes[m], start, end, max_bw); 1731 } 1732} 1733 1734 1735static const char * dfs_domain_name(enum nl80211_dfs_regions region) 1736{ 1737 switch (region) { 1738 case NL80211_DFS_UNSET: 1739 return "DFS-UNSET"; 1740 case NL80211_DFS_FCC: 1741 return "DFS-FCC"; 1742 case NL80211_DFS_ETSI: 1743 return "DFS-ETSI"; 1744 case NL80211_DFS_JP: 1745 return "DFS-JP"; 1746 default: 1747 return "DFS-invalid"; 1748 } 1749} 1750 1751 1752static int nl80211_get_reg(struct nl_msg *msg, void *arg) 1753{ 1754 struct phy_info_arg *results = arg; 1755 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 1756 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 1757 struct nlattr *nl_rule; 1758 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1]; 1759 int rem_rule; 1760 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 1761 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, 1762 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, 1763 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, 1764 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, 1765 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, 1766 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, 1767 }; 1768 1769 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 1770 genlmsg_attrlen(gnlh, 0), NULL); 1771 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] || 1772 !tb_msg[NL80211_ATTR_REG_RULES]) { 1773 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information " 1774 "available"); 1775 return NL_SKIP; 1776 } 1777 1778 if (tb_msg[NL80211_ATTR_DFS_REGION]) { 1779 enum nl80211_dfs_regions dfs_domain; 1780 dfs_domain = nla_get_u8(tb_msg[NL80211_ATTR_DFS_REGION]); 1781 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s (%s)", 1782 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]), 1783 dfs_domain_name(dfs_domain)); 1784 } else { 1785 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s", 1786 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2])); 1787 } 1788 1789 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 1790 { 1791 u32 start, end, max_eirp = 0, max_bw = 0, flags = 0; 1792 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 1793 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 1794 if (tb_rule[NL80211_ATTR_FREQ_RANGE_START] == NULL || 1795 tb_rule[NL80211_ATTR_FREQ_RANGE_END] == NULL) 1796 continue; 1797 start = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 1798 end = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 1799 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) 1800 max_eirp = nla_get_u32(tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) / 100; 1801 if (tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) 1802 max_bw = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 1803 if (tb_rule[NL80211_ATTR_REG_RULE_FLAGS]) 1804 flags = nla_get_u32(tb_rule[NL80211_ATTR_REG_RULE_FLAGS]); 1805 1806 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz %u mBm%s%s%s%s%s%s%s%s", 1807 start, end, max_bw, max_eirp, 1808 flags & NL80211_RRF_NO_OFDM ? " (no OFDM)" : "", 1809 flags & NL80211_RRF_NO_CCK ? " (no CCK)" : "", 1810 flags & NL80211_RRF_NO_INDOOR ? " (no indoor)" : "", 1811 flags & NL80211_RRF_NO_OUTDOOR ? " (no outdoor)" : 1812 "", 1813 flags & NL80211_RRF_DFS ? " (DFS)" : "", 1814 flags & NL80211_RRF_PTP_ONLY ? " (PTP only)" : "", 1815 flags & NL80211_RRF_PTMP_ONLY ? " (PTMP only)" : "", 1816 flags & NL80211_RRF_NO_IR ? " (no IR)" : ""); 1817 if (max_bw >= 40) 1818 nl80211_reg_rule_ht40(start, end, results); 1819 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) 1820 nl80211_reg_rule_max_eirp(start, end, max_eirp, 1821 results); 1822 } 1823 1824 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 1825 { 1826 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 1827 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 1828 nl80211_reg_rule_sec(tb_rule, results); 1829 } 1830 1831 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 1832 { 1833 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 1834 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 1835 nl80211_reg_rule_vht(tb_rule, results); 1836 } 1837 1838 return NL_SKIP; 1839} 1840 1841 1842static int nl80211_set_regulatory_flags(struct wpa_driver_nl80211_data *drv, 1843 struct phy_info_arg *results) 1844{ 1845 struct nl_msg *msg; 1846 1847 msg = nlmsg_alloc(); 1848 if (!msg) 1849 return -ENOMEM; 1850 1851 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 1852 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results); 1853} 1854 1855 1856struct hostapd_hw_modes * 1857nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags) 1858{ 1859 u32 feat; 1860 struct i802_bss *bss = priv; 1861 struct wpa_driver_nl80211_data *drv = bss->drv; 1862 int nl_flags = 0; 1863 struct nl_msg *msg; 1864 struct phy_info_arg result = { 1865 .num_modes = num_modes, 1866 .modes = NULL, 1867 .last_mode = -1, 1868 .failed = 0, 1869 }; 1870 1871 *num_modes = 0; 1872 *flags = 0; 1873 1874 feat = get_nl80211_protocol_features(drv); 1875 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 1876 nl_flags = NLM_F_DUMP; 1877 if (!(msg = nl80211_cmd_msg(bss, nl_flags, NL80211_CMD_GET_WIPHY)) || 1878 nla_put_flag(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP)) { 1879 nlmsg_free(msg); 1880 return NULL; 1881 } 1882 1883 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) { 1884 nl80211_set_regulatory_flags(drv, &result); 1885 if (result.failed) { 1886 int i; 1887 1888 for (i = 0; result.modes && i < *num_modes; i++) { 1889 os_free(result.modes[i].channels); 1890 os_free(result.modes[i].rates); 1891 } 1892 os_free(result.modes); 1893 *num_modes = 0; 1894 return NULL; 1895 } 1896 return wpa_driver_nl80211_postprocess_modes(result.modes, 1897 num_modes); 1898 } 1899 1900 return NULL; 1901} 1902