1 /* 2 * Driver interaction with Linux nl80211/cfg80211 - Capabilities 3 * Copyright (c) 2002-2015, Jouni Malinen <j (at) w1.fi> 4 * Copyright (c) 2007, Johannes Berg <johannes (at) 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 monitor_supported:1; 70 unsigned int auth_supported:1; 71 unsigned int connect_supported:1; 72 unsigned int p2p_go_supported:1; 73 unsigned int p2p_client_supported:1; 74 unsigned int p2p_go_ctwindow_supported:1; 75 unsigned int p2p_concurrent:1; 76 unsigned int channel_switch_supported:1; 77 unsigned int set_qos_map_supported:1; 78 unsigned int have_low_prio_scan:1; 79 unsigned int wmm_ac_supported:1; 80 unsigned int mac_addr_rand_scan_supported:1; 81 unsigned int mac_addr_rand_sched_scan_supported:1; 82 }; 83 84 85 static unsigned int probe_resp_offload_support(int supp_protocols) 86 { 87 unsigned int prot = 0; 88 89 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS) 90 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS; 91 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2) 92 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2; 93 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P) 94 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P; 95 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U) 96 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING; 97 98 return prot; 99 } 100 101 102 static void wiphy_info_supported_iftypes(struct wiphy_info_data *info, 103 struct nlattr *tb) 104 { 105 struct nlattr *nl_mode; 106 int i; 107 108 if (tb == NULL) 109 return; 110 111 nla_for_each_nested(nl_mode, tb, i) { 112 switch (nla_type(nl_mode)) { 113 case NL80211_IFTYPE_AP: 114 info->capa->flags |= WPA_DRIVER_FLAGS_AP; 115 break; 116 case NL80211_IFTYPE_MESH_POINT: 117 info->capa->flags |= WPA_DRIVER_FLAGS_MESH; 118 break; 119 case NL80211_IFTYPE_ADHOC: 120 info->capa->flags |= WPA_DRIVER_FLAGS_IBSS; 121 break; 122 case NL80211_IFTYPE_P2P_DEVICE: 123 info->capa->flags |= 124 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 125 break; 126 case NL80211_IFTYPE_P2P_GO: 127 info->p2p_go_supported = 1; 128 break; 129 case NL80211_IFTYPE_P2P_CLIENT: 130 info->p2p_client_supported = 1; 131 break; 132 case NL80211_IFTYPE_MONITOR: 133 info->monitor_supported = 1; 134 break; 135 } 136 } 137 } 138 139 140 static int wiphy_info_iface_comb_process(struct wiphy_info_data *info, 141 struct nlattr *nl_combi) 142 { 143 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB]; 144 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT]; 145 struct nlattr *nl_limit, *nl_mode; 146 int err, rem_limit, rem_mode; 147 int combination_has_p2p = 0, combination_has_mgd = 0; 148 static struct nla_policy 149 iface_combination_policy[NUM_NL80211_IFACE_COMB] = { 150 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED }, 151 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 }, 152 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG }, 153 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 }, 154 [NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 }, 155 }, 156 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = { 157 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED }, 158 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 }, 159 }; 160 161 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB, 162 nl_combi, iface_combination_policy); 163 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] || 164 !tb_comb[NL80211_IFACE_COMB_MAXNUM] || 165 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) 166 return 0; /* broken combination */ 167 168 if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS]) 169 info->capa->flags |= WPA_DRIVER_FLAGS_RADAR; 170 171 nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS], 172 rem_limit) { 173 err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT, 174 nl_limit, iface_limit_policy); 175 if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES]) 176 return 0; /* broken combination */ 177 178 nla_for_each_nested(nl_mode, 179 tb_limit[NL80211_IFACE_LIMIT_TYPES], 180 rem_mode) { 181 int ift = nla_type(nl_mode); 182 if (ift == NL80211_IFTYPE_P2P_GO || 183 ift == NL80211_IFTYPE_P2P_CLIENT) 184 combination_has_p2p = 1; 185 if (ift == NL80211_IFTYPE_STATION) 186 combination_has_mgd = 1; 187 } 188 if (combination_has_p2p && combination_has_mgd) 189 break; 190 } 191 192 if (combination_has_p2p && combination_has_mgd) { 193 unsigned int num_channels = 194 nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]); 195 196 info->p2p_concurrent = 1; 197 if (info->num_multichan_concurrent < num_channels) 198 info->num_multichan_concurrent = num_channels; 199 } 200 201 return 0; 202 } 203 204 205 static void wiphy_info_iface_comb(struct wiphy_info_data *info, 206 struct nlattr *tb) 207 { 208 struct nlattr *nl_combi; 209 int rem_combi; 210 211 if (tb == NULL) 212 return; 213 214 nla_for_each_nested(nl_combi, tb, rem_combi) { 215 if (wiphy_info_iface_comb_process(info, nl_combi) > 0) 216 break; 217 } 218 } 219 220 221 static void wiphy_info_supp_cmds(struct wiphy_info_data *info, 222 struct nlattr *tb) 223 { 224 struct nlattr *nl_cmd; 225 int i; 226 227 if (tb == NULL) 228 return; 229 230 nla_for_each_nested(nl_cmd, tb, i) { 231 switch (nla_get_u32(nl_cmd)) { 232 case NL80211_CMD_AUTHENTICATE: 233 info->auth_supported = 1; 234 break; 235 case NL80211_CMD_CONNECT: 236 info->connect_supported = 1; 237 break; 238 case NL80211_CMD_START_SCHED_SCAN: 239 info->capa->sched_scan_supported = 1; 240 break; 241 case NL80211_CMD_PROBE_CLIENT: 242 info->poll_command_supported = 1; 243 break; 244 case NL80211_CMD_CHANNEL_SWITCH: 245 info->channel_switch_supported = 1; 246 break; 247 case NL80211_CMD_SET_QOS_MAP: 248 info->set_qos_map_supported = 1; 249 break; 250 } 251 } 252 } 253 254 255 static void wiphy_info_cipher_suites(struct wiphy_info_data *info, 256 struct nlattr *tb) 257 { 258 int i, num; 259 u32 *ciphers; 260 261 if (tb == NULL) 262 return; 263 264 num = nla_len(tb) / sizeof(u32); 265 ciphers = nla_data(tb); 266 for (i = 0; i < num; i++) { 267 u32 c = ciphers[i]; 268 269 wpa_printf(MSG_DEBUG, "nl80211: Supported cipher %02x-%02x-%02x:%d", 270 c >> 24, (c >> 16) & 0xff, 271 (c >> 8) & 0xff, c & 0xff); 272 switch (c) { 273 case WLAN_CIPHER_SUITE_CCMP_256: 274 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP_256; 275 break; 276 case WLAN_CIPHER_SUITE_GCMP_256: 277 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP_256; 278 break; 279 case WLAN_CIPHER_SUITE_CCMP: 280 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP; 281 break; 282 case WLAN_CIPHER_SUITE_GCMP: 283 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP; 284 break; 285 case WLAN_CIPHER_SUITE_TKIP: 286 info->capa->enc |= WPA_DRIVER_CAPA_ENC_TKIP; 287 break; 288 case WLAN_CIPHER_SUITE_WEP104: 289 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP104; 290 break; 291 case WLAN_CIPHER_SUITE_WEP40: 292 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP40; 293 break; 294 case WLAN_CIPHER_SUITE_AES_CMAC: 295 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP; 296 break; 297 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 298 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_128; 299 break; 300 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 301 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_256; 302 break; 303 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 304 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_CMAC_256; 305 break; 306 case WLAN_CIPHER_SUITE_NO_GROUP_ADDR: 307 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GTK_NOT_USED; 308 break; 309 } 310 } 311 } 312 313 314 static void wiphy_info_max_roc(struct wpa_driver_capa *capa, 315 struct nlattr *tb) 316 { 317 if (tb) 318 capa->max_remain_on_chan = nla_get_u32(tb); 319 } 320 321 322 static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls, 323 struct nlattr *ext_setup) 324 { 325 if (tdls == NULL) 326 return; 327 328 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported"); 329 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT; 330 331 if (ext_setup) { 332 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup"); 333 capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP; 334 } 335 } 336 337 338 static int ext_feature_isset(const u8 *ext_features, int ext_features_len, 339 enum nl80211_ext_feature_index ftidx) 340 { 341 u8 ft_byte; 342 343 if ((int) ftidx / 8 >= ext_features_len) 344 return 0; 345 346 ft_byte = ext_features[ftidx / 8]; 347 return (ft_byte & BIT(ftidx % 8)) != 0; 348 } 349 350 351 static void wiphy_info_ext_feature_flags(struct wiphy_info_data *info, 352 struct nlattr *tb) 353 { 354 struct wpa_driver_capa *capa = info->capa; 355 356 if (tb == NULL) 357 return; 358 359 if (ext_feature_isset(nla_data(tb), nla_len(tb), 360 NL80211_EXT_FEATURE_VHT_IBSS)) 361 capa->flags |= WPA_DRIVER_FLAGS_VHT_IBSS; 362 } 363 364 365 static void wiphy_info_feature_flags(struct wiphy_info_data *info, 366 struct nlattr *tb) 367 { 368 u32 flags; 369 struct wpa_driver_capa *capa = info->capa; 370 371 if (tb == NULL) 372 return; 373 374 flags = nla_get_u32(tb); 375 376 if (flags & NL80211_FEATURE_SK_TX_STATUS) 377 info->data_tx_status = 1; 378 379 if (flags & NL80211_FEATURE_INACTIVITY_TIMER) 380 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER; 381 382 if (flags & NL80211_FEATURE_SAE) 383 capa->flags |= WPA_DRIVER_FLAGS_SAE; 384 385 if (flags & NL80211_FEATURE_NEED_OBSS_SCAN) 386 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN; 387 388 if (flags & NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE) 389 capa->flags |= WPA_DRIVER_FLAGS_HT_2040_COEX; 390 391 if (flags & NL80211_FEATURE_TDLS_CHANNEL_SWITCH) { 392 wpa_printf(MSG_DEBUG, "nl80211: TDLS channel switch"); 393 capa->flags |= WPA_DRIVER_FLAGS_TDLS_CHANNEL_SWITCH; 394 } 395 396 if (flags & NL80211_FEATURE_P2P_GO_CTWIN) 397 info->p2p_go_ctwindow_supported = 1; 398 399 if (flags & NL80211_FEATURE_LOW_PRIORITY_SCAN) 400 info->have_low_prio_scan = 1; 401 402 if (flags & NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR) 403 info->mac_addr_rand_scan_supported = 1; 404 405 if (flags & NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR) 406 info->mac_addr_rand_sched_scan_supported = 1; 407 408 if (flags & NL80211_FEATURE_STATIC_SMPS) 409 capa->smps_modes |= WPA_DRIVER_SMPS_MODE_STATIC; 410 411 if (flags & NL80211_FEATURE_DYNAMIC_SMPS) 412 capa->smps_modes |= WPA_DRIVER_SMPS_MODE_DYNAMIC; 413 414 if (flags & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION) 415 info->wmm_ac_supported = 1; 416 417 if (flags & NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) 418 capa->rrm_flags |= WPA_DRIVER_FLAGS_DS_PARAM_SET_IE_IN_PROBES; 419 420 if (flags & NL80211_FEATURE_WFA_TPC_IE_IN_PROBES) 421 capa->rrm_flags |= WPA_DRIVER_FLAGS_WFA_TPC_IE_IN_PROBES; 422 423 if (flags & NL80211_FEATURE_QUIET) 424 capa->rrm_flags |= WPA_DRIVER_FLAGS_QUIET; 425 426 if (flags & NL80211_FEATURE_TX_POWER_INSERTION) 427 capa->rrm_flags |= WPA_DRIVER_FLAGS_TX_POWER_INSERTION; 428 429 if (flags & NL80211_FEATURE_HT_IBSS) 430 capa->flags |= WPA_DRIVER_FLAGS_HT_IBSS; 431 432 if (flags & NL80211_FEATURE_FULL_AP_CLIENT_STATE) 433 capa->flags |= WPA_DRIVER_FLAGS_FULL_AP_CLIENT_STATE; 434 } 435 436 437 static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa, 438 struct nlattr *tb) 439 { 440 u32 protocols; 441 442 if (tb == NULL) 443 return; 444 445 protocols = nla_get_u32(tb); 446 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP " 447 "mode"); 448 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD; 449 capa->probe_resp_offloads = probe_resp_offload_support(protocols); 450 } 451 452 453 static void wiphy_info_wowlan_triggers(struct wpa_driver_capa *capa, 454 struct nlattr *tb) 455 { 456 struct nlattr *triggers[MAX_NL80211_WOWLAN_TRIG + 1]; 457 458 if (tb == NULL) 459 return; 460 461 if (nla_parse_nested(triggers, MAX_NL80211_WOWLAN_TRIG, 462 tb, NULL)) 463 return; 464 465 if (triggers[NL80211_WOWLAN_TRIG_ANY]) 466 capa->wowlan_triggers.any = 1; 467 if (triggers[NL80211_WOWLAN_TRIG_DISCONNECT]) 468 capa->wowlan_triggers.disconnect = 1; 469 if (triggers[NL80211_WOWLAN_TRIG_MAGIC_PKT]) 470 capa->wowlan_triggers.magic_pkt = 1; 471 if (triggers[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) 472 capa->wowlan_triggers.gtk_rekey_failure = 1; 473 if (triggers[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) 474 capa->wowlan_triggers.eap_identity_req = 1; 475 if (triggers[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) 476 capa->wowlan_triggers.four_way_handshake = 1; 477 if (triggers[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) 478 capa->wowlan_triggers.rfkill_release = 1; 479 } 480 481 482 static int wiphy_info_handler(struct nl_msg *msg, void *arg) 483 { 484 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 485 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 486 struct wiphy_info_data *info = arg; 487 struct wpa_driver_capa *capa = info->capa; 488 struct wpa_driver_nl80211_data *drv = info->drv; 489 490 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 491 genlmsg_attrlen(gnlh, 0), NULL); 492 493 if (tb[NL80211_ATTR_WIPHY]) 494 drv->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]); 495 496 if (tb[NL80211_ATTR_WIPHY_NAME]) 497 os_strlcpy(drv->phyname, 498 nla_get_string(tb[NL80211_ATTR_WIPHY_NAME]), 499 sizeof(drv->phyname)); 500 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]) 501 capa->max_scan_ssids = 502 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]); 503 504 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]) 505 capa->max_sched_scan_ssids = 506 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]); 507 508 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS] && 509 tb[NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL] && 510 tb[NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS]) { 511 capa->max_sched_scan_plans = 512 nla_get_u32(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS]); 513 514 capa->max_sched_scan_plan_interval = 515 nla_get_u32(tb[NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL]); 516 517 capa->max_sched_scan_plan_iterations = 518 nla_get_u32(tb[NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS]); 519 } 520 521 if (tb[NL80211_ATTR_MAX_MATCH_SETS]) 522 capa->max_match_sets = 523 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]); 524 525 if (tb[NL80211_ATTR_MAC_ACL_MAX]) 526 capa->max_acl_mac_addrs = 527 nla_get_u8(tb[NL80211_ATTR_MAC_ACL_MAX]); 528 529 wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]); 530 wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]); 531 wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]); 532 wiphy_info_cipher_suites(info, tb[NL80211_ATTR_CIPHER_SUITES]); 533 534 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) { 535 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based " 536 "off-channel TX"); 537 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX; 538 } 539 540 if (tb[NL80211_ATTR_ROAM_SUPPORT]) { 541 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming"); 542 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION; 543 } 544 545 wiphy_info_max_roc(capa, 546 tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]); 547 548 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD]) 549 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD; 550 551 wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT], 552 tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]); 553 554 if (tb[NL80211_ATTR_DEVICE_AP_SME]) 555 info->device_ap_sme = 1; 556 557 wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]); 558 wiphy_info_ext_feature_flags(info, tb[NL80211_ATTR_EXT_FEATURES]); 559 wiphy_info_probe_resp_offload(capa, 560 tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]); 561 562 if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] && 563 drv->extended_capa == NULL) { 564 drv->extended_capa = 565 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 566 if (drv->extended_capa) { 567 os_memcpy(drv->extended_capa, 568 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 569 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 570 drv->extended_capa_len = 571 nla_len(tb[NL80211_ATTR_EXT_CAPA]); 572 } 573 drv->extended_capa_mask = 574 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA_MASK])); 575 if (drv->extended_capa_mask) { 576 os_memcpy(drv->extended_capa_mask, 577 nla_data(tb[NL80211_ATTR_EXT_CAPA_MASK]), 578 nla_len(tb[NL80211_ATTR_EXT_CAPA_MASK])); 579 } else { 580 os_free(drv->extended_capa); 581 drv->extended_capa = NULL; 582 drv->extended_capa_len = 0; 583 } 584 } 585 586 if (tb[NL80211_ATTR_VENDOR_DATA]) { 587 struct nlattr *nl; 588 int rem; 589 590 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_DATA], rem) { 591 struct nl80211_vendor_cmd_info *vinfo; 592 if (nla_len(nl) != sizeof(*vinfo)) { 593 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info"); 594 continue; 595 } 596 vinfo = nla_data(nl); 597 if (vinfo->vendor_id == OUI_QCA) { 598 switch (vinfo->subcmd) { 599 case QCA_NL80211_VENDOR_SUBCMD_TEST: 600 drv->vendor_cmd_test_avail = 1; 601 break; 602 #ifdef CONFIG_DRIVER_NL80211_QCA 603 case QCA_NL80211_VENDOR_SUBCMD_ROAMING: 604 drv->roaming_vendor_cmd_avail = 1; 605 break; 606 case QCA_NL80211_VENDOR_SUBCMD_DFS_CAPABILITY: 607 drv->dfs_vendor_cmd_avail = 1; 608 break; 609 case QCA_NL80211_VENDOR_SUBCMD_GET_FEATURES: 610 drv->get_features_vendor_cmd_avail = 1; 611 break; 612 case QCA_NL80211_VENDOR_SUBCMD_GET_PREFERRED_FREQ_LIST: 613 drv->get_pref_freq_list = 1; 614 break; 615 case QCA_NL80211_VENDOR_SUBCMD_SET_PROBABLE_OPER_CHANNEL: 616 drv->set_prob_oper_freq = 1; 617 break; 618 case QCA_NL80211_VENDOR_SUBCMD_DO_ACS: 619 drv->capa.flags |= 620 WPA_DRIVER_FLAGS_ACS_OFFLOAD; 621 break; 622 case QCA_NL80211_VENDOR_SUBCMD_SETBAND: 623 drv->setband_vendor_cmd_avail = 1; 624 break; 625 case QCA_NL80211_VENDOR_SUBCMD_TRIGGER_SCAN: 626 drv->scan_vendor_cmd_avail = 1; 627 break; 628 #endif /* CONFIG_DRIVER_NL80211_QCA */ 629 } 630 } 631 632 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor command: vendor_id=0x%x subcmd=%u", 633 vinfo->vendor_id, vinfo->subcmd); 634 } 635 } 636 637 if (tb[NL80211_ATTR_VENDOR_EVENTS]) { 638 struct nlattr *nl; 639 int rem; 640 641 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_EVENTS], rem) { 642 struct nl80211_vendor_cmd_info *vinfo; 643 if (nla_len(nl) != sizeof(*vinfo)) { 644 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info"); 645 continue; 646 } 647 vinfo = nla_data(nl); 648 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor event: vendor_id=0x%x subcmd=%u", 649 vinfo->vendor_id, vinfo->subcmd); 650 } 651 } 652 653 wiphy_info_wowlan_triggers(capa, 654 tb[NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED]); 655 656 if (tb[NL80211_ATTR_MAX_AP_ASSOC_STA]) 657 capa->max_stations = 658 nla_get_u32(tb[NL80211_ATTR_MAX_AP_ASSOC_STA]); 659 660 if (tb[NL80211_ATTR_MAX_CSA_COUNTERS]) 661 capa->max_csa_counters = 662 nla_get_u8(tb[NL80211_ATTR_MAX_CSA_COUNTERS]); 663 664 return NL_SKIP; 665 } 666 667 668 static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv, 669 struct wiphy_info_data *info) 670 { 671 u32 feat; 672 struct nl_msg *msg; 673 int flags = 0; 674 675 os_memset(info, 0, sizeof(*info)); 676 info->capa = &drv->capa; 677 info->drv = drv; 678 679 feat = get_nl80211_protocol_features(drv); 680 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 681 flags = NLM_F_DUMP; 682 msg = nl80211_cmd_msg(drv->first_bss, flags, NL80211_CMD_GET_WIPHY); 683 if (!msg || nla_put_flag(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP)) { 684 nlmsg_free(msg); 685 return -1; 686 } 687 688 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info)) 689 return -1; 690 691 if (info->auth_supported) 692 drv->capa.flags |= WPA_DRIVER_FLAGS_SME; 693 else if (!info->connect_supported) { 694 wpa_printf(MSG_INFO, "nl80211: Driver does not support " 695 "authentication/association or connect commands"); 696 info->error = 1; 697 } 698 699 if (info->p2p_go_supported && info->p2p_client_supported) 700 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE; 701 if (info->p2p_concurrent) { 702 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 703 "interface (driver advertised support)"); 704 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 705 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 706 } 707 if (info->num_multichan_concurrent > 1) { 708 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel " 709 "concurrent (driver advertised support)"); 710 drv->capa.num_multichan_concurrent = 711 info->num_multichan_concurrent; 712 } 713 if (drv->capa.flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) 714 wpa_printf(MSG_DEBUG, "nl80211: use P2P_DEVICE support"); 715 716 /* default to 5000 since early versions of mac80211 don't set it */ 717 if (!drv->capa.max_remain_on_chan) 718 drv->capa.max_remain_on_chan = 5000; 719 720 drv->capa.wmm_ac_supported = info->wmm_ac_supported; 721 722 drv->capa.mac_addr_rand_sched_scan_supported = 723 info->mac_addr_rand_sched_scan_supported; 724 drv->capa.mac_addr_rand_scan_supported = 725 info->mac_addr_rand_scan_supported; 726 727 if (info->channel_switch_supported) { 728 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_CSA; 729 if (!drv->capa.max_csa_counters) 730 drv->capa.max_csa_counters = 1; 731 } 732 733 if (!drv->capa.max_sched_scan_plans) { 734 drv->capa.max_sched_scan_plans = 1; 735 drv->capa.max_sched_scan_plan_interval = UINT32_MAX; 736 drv->capa.max_sched_scan_plan_iterations = 0; 737 } 738 739 return 0; 740 } 741 742 743 #ifdef CONFIG_DRIVER_NL80211_QCA 744 745 static int dfs_info_handler(struct nl_msg *msg, void *arg) 746 { 747 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 748 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 749 int *dfs_capability_ptr = arg; 750 751 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 752 genlmsg_attrlen(gnlh, 0), NULL); 753 754 if (tb[NL80211_ATTR_VENDOR_DATA]) { 755 struct nlattr *nl_vend = tb[NL80211_ATTR_VENDOR_DATA]; 756 struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_MAX + 1]; 757 758 nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_MAX, 759 nla_data(nl_vend), nla_len(nl_vend), NULL); 760 761 if (tb_vendor[QCA_WLAN_VENDOR_ATTR_DFS]) { 762 u32 val; 763 val = nla_get_u32(tb_vendor[QCA_WLAN_VENDOR_ATTR_DFS]); 764 wpa_printf(MSG_DEBUG, "nl80211: DFS offload capability: %u", 765 val); 766 *dfs_capability_ptr = val; 767 } 768 } 769 770 return NL_SKIP; 771 } 772 773 774 static void qca_nl80211_check_dfs_capa(struct wpa_driver_nl80211_data *drv) 775 { 776 struct nl_msg *msg; 777 int dfs_capability = 0; 778 int ret; 779 780 if (!drv->dfs_vendor_cmd_avail) 781 return; 782 783 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || 784 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || 785 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, 786 QCA_NL80211_VENDOR_SUBCMD_DFS_CAPABILITY)) { 787 nlmsg_free(msg); 788 return; 789 } 790 791 ret = send_and_recv_msgs(drv, msg, dfs_info_handler, &dfs_capability); 792 if (!ret && dfs_capability) 793 drv->capa.flags |= WPA_DRIVER_FLAGS_DFS_OFFLOAD; 794 } 795 796 797 struct features_info { 798 u8 *flags; 799 size_t flags_len; 800 struct wpa_driver_capa *capa; 801 }; 802 803 804 static int features_info_handler(struct nl_msg *msg, void *arg) 805 { 806 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 807 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 808 struct features_info *info = arg; 809 struct nlattr *nl_vend, *attr; 810 811 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 812 genlmsg_attrlen(gnlh, 0), NULL); 813 814 nl_vend = tb[NL80211_ATTR_VENDOR_DATA]; 815 if (nl_vend) { 816 struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_MAX + 1]; 817 818 nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_MAX, 819 nla_data(nl_vend), nla_len(nl_vend), NULL); 820 821 attr = tb_vendor[QCA_WLAN_VENDOR_ATTR_FEATURE_FLAGS]; 822 if (attr) { 823 info->flags = nla_data(attr); 824 info->flags_len = nla_len(attr); 825 } 826 attr = tb_vendor[QCA_WLAN_VENDOR_ATTR_CONCURRENCY_CAPA]; 827 if (attr) 828 info->capa->conc_capab = nla_get_u32(attr); 829 830 attr = tb_vendor[ 831 QCA_WLAN_VENDOR_ATTR_MAX_CONCURRENT_CHANNELS_2_4_BAND]; 832 if (attr) 833 info->capa->max_conc_chan_2_4 = nla_get_u32(attr); 834 835 attr = tb_vendor[ 836 QCA_WLAN_VENDOR_ATTR_MAX_CONCURRENT_CHANNELS_5_0_BAND]; 837 if (attr) 838 info->capa->max_conc_chan_5_0 = nla_get_u32(attr); 839 } 840 841 return NL_SKIP; 842 } 843 844 845 static int check_feature(enum qca_wlan_vendor_features feature, 846 struct features_info *info) 847 { 848 size_t idx = feature / 8; 849 850 return (idx < info->flags_len) && 851 (info->flags[idx] & BIT(feature % 8)); 852 } 853 854 855 static void qca_nl80211_get_features(struct wpa_driver_nl80211_data *drv) 856 { 857 struct nl_msg *msg; 858 struct features_info info; 859 int ret; 860 861 if (!drv->get_features_vendor_cmd_avail) 862 return; 863 864 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || 865 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || 866 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, 867 QCA_NL80211_VENDOR_SUBCMD_GET_FEATURES)) { 868 nlmsg_free(msg); 869 return; 870 } 871 872 os_memset(&info, 0, sizeof(info)); 873 info.capa = &drv->capa; 874 ret = send_and_recv_msgs(drv, msg, features_info_handler, &info); 875 if (ret || !info.flags) 876 return; 877 878 if (check_feature(QCA_WLAN_VENDOR_FEATURE_KEY_MGMT_OFFLOAD, &info)) 879 drv->capa.flags |= WPA_DRIVER_FLAGS_KEY_MGMT_OFFLOAD; 880 881 if (check_feature(QCA_WLAN_VENDOR_FEATURE_SUPPORT_HW_MODE_ANY, &info)) 882 drv->capa.flags |= WPA_DRIVER_FLAGS_SUPPORT_HW_MODE_ANY; 883 884 if (check_feature(QCA_WLAN_VENDOR_FEATURE_OFFCHANNEL_SIMULTANEOUS, 885 &info)) 886 drv->capa.flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS; 887 } 888 889 #endif /* CONFIG_DRIVER_NL80211_QCA */ 890 891 892 int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv) 893 { 894 struct wiphy_info_data info; 895 if (wpa_driver_nl80211_get_info(drv, &info)) 896 return -1; 897 898 if (info.error) 899 return -1; 900 901 drv->has_capability = 1; 902 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA | 903 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK | 904 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 | 905 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK | 906 WPA_DRIVER_CAPA_KEY_MGMT_SUITE_B | 907 WPA_DRIVER_CAPA_KEY_MGMT_SUITE_B_192; 908 drv->capa.auth = WPA_DRIVER_AUTH_OPEN | 909 WPA_DRIVER_AUTH_SHARED | 910 WPA_DRIVER_AUTH_LEAP; 911 912 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES; 913 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE; 914 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 915 916 /* 917 * As all cfg80211 drivers must support cases where the AP interface is 918 * removed without the knowledge of wpa_supplicant/hostapd, e.g., in 919 * case that the user space daemon has crashed, they must be able to 920 * cleanup all stations and key entries in the AP tear down flow. Thus, 921 * this flag can/should always be set for cfg80211 drivers. 922 */ 923 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT; 924 925 if (!info.device_ap_sme) { 926 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS; 927 928 /* 929 * No AP SME is currently assumed to also indicate no AP MLME 930 * in the driver/firmware. 931 */ 932 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME; 933 } 934 935 drv->device_ap_sme = info.device_ap_sme; 936 drv->poll_command_supported = info.poll_command_supported; 937 drv->data_tx_status = info.data_tx_status; 938 drv->p2p_go_ctwindow_supported = info.p2p_go_ctwindow_supported; 939 if (info.set_qos_map_supported) 940 drv->capa.flags |= WPA_DRIVER_FLAGS_QOS_MAPPING; 941 drv->have_low_prio_scan = info.have_low_prio_scan; 942 943 /* 944 * If poll command and tx status are supported, mac80211 is new enough 945 * to have everything we need to not need monitor interfaces. 946 */ 947 drv->use_monitor = !info.poll_command_supported || !info.data_tx_status; 948 949 if (drv->device_ap_sme && drv->use_monitor) { 950 /* 951 * Non-mac80211 drivers may not support monitor interface. 952 * Make sure we do not get stuck with incorrect capability here 953 * by explicitly testing this. 954 */ 955 if (!info.monitor_supported) { 956 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor " 957 "with device_ap_sme since no monitor mode " 958 "support detected"); 959 drv->use_monitor = 0; 960 } 961 } 962 963 /* 964 * If we aren't going to use monitor interfaces, but the 965 * driver doesn't support data TX status, we won't get TX 966 * status for EAPOL frames. 967 */ 968 if (!drv->use_monitor && !info.data_tx_status) 969 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 970 971 #ifdef CONFIG_DRIVER_NL80211_QCA 972 qca_nl80211_check_dfs_capa(drv); 973 qca_nl80211_get_features(drv); 974 975 /* 976 * To enable offchannel simultaneous support in wpa_supplicant, the 977 * underlying driver needs to support the same along with offchannel TX. 978 * Offchannel TX support is needed since remain_on_channel and 979 * action_tx use some common data structures and hence cannot be 980 * scheduled simultaneously. 981 */ 982 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX)) 983 drv->capa.flags &= ~WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS; 984 #endif /* CONFIG_DRIVER_NL80211_QCA */ 985 986 return 0; 987 } 988 989 990 struct phy_info_arg { 991 u16 *num_modes; 992 struct hostapd_hw_modes *modes; 993 int last_mode, last_chan_idx; 994 int failed; 995 }; 996 997 static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa, 998 struct nlattr *ampdu_factor, 999 struct nlattr *ampdu_density, 1000 struct nlattr *mcs_set) 1001 { 1002 if (capa) 1003 mode->ht_capab = nla_get_u16(capa); 1004 1005 if (ampdu_factor) 1006 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03; 1007 1008 if (ampdu_density) 1009 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2; 1010 1011 if (mcs_set && nla_len(mcs_set) >= 16) { 1012 u8 *mcs; 1013 mcs = nla_data(mcs_set); 1014 os_memcpy(mode->mcs_set, mcs, 16); 1015 } 1016 } 1017 1018 1019 static void phy_info_vht_capa(struct hostapd_hw_modes *mode, 1020 struct nlattr *capa, 1021 struct nlattr *mcs_set) 1022 { 1023 if (capa) 1024 mode->vht_capab = nla_get_u32(capa); 1025 1026 if (mcs_set && nla_len(mcs_set) >= 8) { 1027 u8 *mcs; 1028 mcs = nla_data(mcs_set); 1029 os_memcpy(mode->vht_mcs_set, mcs, 8); 1030 } 1031 } 1032 1033 1034 static void phy_info_freq(struct hostapd_hw_modes *mode, 1035 struct hostapd_channel_data *chan, 1036 struct nlattr *tb_freq[]) 1037 { 1038 u8 channel; 1039 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]); 1040 chan->flag = 0; 1041 chan->dfs_cac_ms = 0; 1042 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES) 1043 chan->chan = channel; 1044 1045 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) 1046 chan->flag |= HOSTAPD_CHAN_DISABLED; 1047 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IR]) 1048 chan->flag |= HOSTAPD_CHAN_NO_IR; 1049 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR]) 1050 chan->flag |= HOSTAPD_CHAN_RADAR; 1051 if (tb_freq[NL80211_FREQUENCY_ATTR_INDOOR_ONLY]) 1052 chan->flag |= HOSTAPD_CHAN_INDOOR_ONLY; 1053 if (tb_freq[NL80211_FREQUENCY_ATTR_GO_CONCURRENT]) 1054 chan->flag |= HOSTAPD_CHAN_GO_CONCURRENT; 1055 1056 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) { 1057 enum nl80211_dfs_state state = 1058 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]); 1059 1060 switch (state) { 1061 case NL80211_DFS_USABLE: 1062 chan->flag |= HOSTAPD_CHAN_DFS_USABLE; 1063 break; 1064 case NL80211_DFS_AVAILABLE: 1065 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE; 1066 break; 1067 case NL80211_DFS_UNAVAILABLE: 1068 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE; 1069 break; 1070 } 1071 } 1072 1073 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME]) { 1074 chan->dfs_cac_ms = nla_get_u32( 1075 tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME]); 1076 } 1077 } 1078 1079 1080 static int phy_info_freqs(struct phy_info_arg *phy_info, 1081 struct hostapd_hw_modes *mode, struct nlattr *tb) 1082 { 1083 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 1084 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 }, 1085 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG }, 1086 [NL80211_FREQUENCY_ATTR_NO_IR] = { .type = NLA_FLAG }, 1087 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG }, 1088 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 }, 1089 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 }, 1090 }; 1091 int new_channels = 0; 1092 struct hostapd_channel_data *channel; 1093 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1]; 1094 struct nlattr *nl_freq; 1095 int rem_freq, idx; 1096 1097 if (tb == NULL) 1098 return NL_OK; 1099 1100 nla_for_each_nested(nl_freq, tb, rem_freq) { 1101 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 1102 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 1103 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 1104 continue; 1105 new_channels++; 1106 } 1107 1108 channel = os_realloc_array(mode->channels, 1109 mode->num_channels + new_channels, 1110 sizeof(struct hostapd_channel_data)); 1111 if (!channel) 1112 return NL_STOP; 1113 1114 mode->channels = channel; 1115 mode->num_channels += new_channels; 1116 1117 idx = phy_info->last_chan_idx; 1118 1119 nla_for_each_nested(nl_freq, tb, rem_freq) { 1120 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 1121 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 1122 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 1123 continue; 1124 phy_info_freq(mode, &mode->channels[idx], tb_freq); 1125 idx++; 1126 } 1127 phy_info->last_chan_idx = idx; 1128 1129 return NL_OK; 1130 } 1131 1132 1133 static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb) 1134 { 1135 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = { 1136 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 }, 1137 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = 1138 { .type = NLA_FLAG }, 1139 }; 1140 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1]; 1141 struct nlattr *nl_rate; 1142 int rem_rate, idx; 1143 1144 if (tb == NULL) 1145 return NL_OK; 1146 1147 nla_for_each_nested(nl_rate, tb, rem_rate) { 1148 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 1149 nla_data(nl_rate), nla_len(nl_rate), 1150 rate_policy); 1151 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 1152 continue; 1153 mode->num_rates++; 1154 } 1155 1156 mode->rates = os_calloc(mode->num_rates, sizeof(int)); 1157 if (!mode->rates) 1158 return NL_STOP; 1159 1160 idx = 0; 1161 1162 nla_for_each_nested(nl_rate, tb, rem_rate) { 1163 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 1164 nla_data(nl_rate), nla_len(nl_rate), 1165 rate_policy); 1166 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 1167 continue; 1168 mode->rates[idx] = nla_get_u32( 1169 tb_rate[NL80211_BITRATE_ATTR_RATE]); 1170 idx++; 1171 } 1172 1173 return NL_OK; 1174 } 1175 1176 1177 static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band) 1178 { 1179 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1]; 1180 struct hostapd_hw_modes *mode; 1181 int ret; 1182 1183 if (phy_info->last_mode != nl_band->nla_type) { 1184 mode = os_realloc_array(phy_info->modes, 1185 *phy_info->num_modes + 1, 1186 sizeof(*mode)); 1187 if (!mode) { 1188 phy_info->failed = 1; 1189 return NL_STOP; 1190 } 1191 phy_info->modes = mode; 1192 1193 mode = &phy_info->modes[*(phy_info->num_modes)]; 1194 os_memset(mode, 0, sizeof(*mode)); 1195 mode->mode = NUM_HOSTAPD_MODES; 1196 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN | 1197 HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN; 1198 1199 /* 1200 * Unsupported VHT MCS stream is defined as value 3, so the VHT 1201 * MCS RX/TX map must be initialized with 0xffff to mark all 8 1202 * possible streams as unsupported. This will be overridden if 1203 * driver advertises VHT support. 1204 */ 1205 mode->vht_mcs_set[0] = 0xff; 1206 mode->vht_mcs_set[1] = 0xff; 1207 mode->vht_mcs_set[4] = 0xff; 1208 mode->vht_mcs_set[5] = 0xff; 1209 1210 *(phy_info->num_modes) += 1; 1211 phy_info->last_mode = nl_band->nla_type; 1212 phy_info->last_chan_idx = 0; 1213 } else 1214 mode = &phy_info->modes[*(phy_info->num_modes) - 1]; 1215 1216 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band), 1217 nla_len(nl_band), NULL); 1218 1219 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA], 1220 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR], 1221 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY], 1222 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]); 1223 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA], 1224 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]); 1225 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]); 1226 if (ret == NL_OK) 1227 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]); 1228 if (ret != NL_OK) { 1229 phy_info->failed = 1; 1230 return ret; 1231 } 1232 1233 return NL_OK; 1234 } 1235 1236 1237 static int phy_info_handler(struct nl_msg *msg, void *arg) 1238 { 1239 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 1240 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 1241 struct phy_info_arg *phy_info = arg; 1242 struct nlattr *nl_band; 1243 int rem_band; 1244 1245 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 1246 genlmsg_attrlen(gnlh, 0), NULL); 1247 1248 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS]) 1249 return NL_SKIP; 1250 1251 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) 1252 { 1253 int res = phy_info_band(phy_info, nl_band); 1254 if (res != NL_OK) 1255 return res; 1256 } 1257 1258 return NL_SKIP; 1259 } 1260 1261 1262 static struct hostapd_hw_modes * 1263 wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes, 1264 u16 *num_modes) 1265 { 1266 u16 m; 1267 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode; 1268 int i, mode11g_idx = -1; 1269 1270 /* heuristic to set up modes */ 1271 for (m = 0; m < *num_modes; m++) { 1272 if (!modes[m].num_channels) 1273 continue; 1274 if (modes[m].channels[0].freq < 4000) { 1275 modes[m].mode = HOSTAPD_MODE_IEEE80211B; 1276 for (i = 0; i < modes[m].num_rates; i++) { 1277 if (modes[m].rates[i] > 200) { 1278 modes[m].mode = HOSTAPD_MODE_IEEE80211G; 1279 break; 1280 } 1281 } 1282 } else if (modes[m].channels[0].freq > 50000) 1283 modes[m].mode = HOSTAPD_MODE_IEEE80211AD; 1284 else 1285 modes[m].mode = HOSTAPD_MODE_IEEE80211A; 1286 } 1287 1288 /* If only 802.11g mode is included, use it to construct matching 1289 * 802.11b mode data. */ 1290 1291 for (m = 0; m < *num_modes; m++) { 1292 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B) 1293 return modes; /* 802.11b already included */ 1294 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G) 1295 mode11g_idx = m; 1296 } 1297 1298 if (mode11g_idx < 0) 1299 return modes; /* 2.4 GHz band not supported at all */ 1300 1301 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes)); 1302 if (nmodes == NULL) 1303 return modes; /* Could not add 802.11b mode */ 1304 1305 mode = &nmodes[*num_modes]; 1306 os_memset(mode, 0, sizeof(*mode)); 1307 (*num_modes)++; 1308 modes = nmodes; 1309 1310 mode->mode = HOSTAPD_MODE_IEEE80211B; 1311 1312 mode11g = &modes[mode11g_idx]; 1313 mode->num_channels = mode11g->num_channels; 1314 mode->channels = os_malloc(mode11g->num_channels * 1315 sizeof(struct hostapd_channel_data)); 1316 if (mode->channels == NULL) { 1317 (*num_modes)--; 1318 return modes; /* Could not add 802.11b mode */ 1319 } 1320 os_memcpy(mode->channels, mode11g->channels, 1321 mode11g->num_channels * sizeof(struct hostapd_channel_data)); 1322 1323 mode->num_rates = 0; 1324 mode->rates = os_malloc(4 * sizeof(int)); 1325 if (mode->rates == NULL) { 1326 os_free(mode->channels); 1327 (*num_modes)--; 1328 return modes; /* Could not add 802.11b mode */ 1329 } 1330 1331 for (i = 0; i < mode11g->num_rates; i++) { 1332 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 && 1333 mode11g->rates[i] != 55 && mode11g->rates[i] != 110) 1334 continue; 1335 mode->rates[mode->num_rates] = mode11g->rates[i]; 1336 mode->num_rates++; 1337 if (mode->num_rates == 4) 1338 break; 1339 } 1340 1341 if (mode->num_rates == 0) { 1342 os_free(mode->channels); 1343 os_free(mode->rates); 1344 (*num_modes)--; 1345 return modes; /* No 802.11b rates */ 1346 } 1347 1348 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g " 1349 "information"); 1350 1351 return modes; 1352 } 1353 1354 1355 static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start, 1356 int end) 1357 { 1358 int c; 1359 1360 for (c = 0; c < mode->num_channels; c++) { 1361 struct hostapd_channel_data *chan = &mode->channels[c]; 1362 if (chan->freq - 10 >= start && chan->freq + 10 <= end) 1363 chan->flag |= HOSTAPD_CHAN_HT40; 1364 } 1365 } 1366 1367 1368 static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start, 1369 int end) 1370 { 1371 int c; 1372 1373 for (c = 0; c < mode->num_channels; c++) { 1374 struct hostapd_channel_data *chan = &mode->channels[c]; 1375 if (!(chan->flag & HOSTAPD_CHAN_HT40)) 1376 continue; 1377 if (chan->freq - 30 >= start && chan->freq - 10 <= end) 1378 chan->flag |= HOSTAPD_CHAN_HT40MINUS; 1379 if (chan->freq + 10 >= start && chan->freq + 30 <= end) 1380 chan->flag |= HOSTAPD_CHAN_HT40PLUS; 1381 } 1382 } 1383 1384 1385 static void nl80211_reg_rule_max_eirp(u32 start, u32 end, u32 max_eirp, 1386 struct phy_info_arg *results) 1387 { 1388 u16 m; 1389 1390 for (m = 0; m < *results->num_modes; m++) { 1391 int c; 1392 struct hostapd_hw_modes *mode = &results->modes[m]; 1393 1394 for (c = 0; c < mode->num_channels; c++) { 1395 struct hostapd_channel_data *chan = &mode->channels[c]; 1396 if ((u32) chan->freq - 10 >= start && 1397 (u32) chan->freq + 10 <= end) 1398 chan->max_tx_power = max_eirp; 1399 } 1400 } 1401 } 1402 1403 1404 static void nl80211_reg_rule_ht40(u32 start, u32 end, 1405 struct phy_info_arg *results) 1406 { 1407 u16 m; 1408 1409 for (m = 0; m < *results->num_modes; m++) { 1410 if (!(results->modes[m].ht_capab & 1411 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 1412 continue; 1413 nl80211_set_ht40_mode(&results->modes[m], start, end); 1414 } 1415 } 1416 1417 1418 static void nl80211_reg_rule_sec(struct nlattr *tb[], 1419 struct phy_info_arg *results) 1420 { 1421 u32 start, end, max_bw; 1422 u16 m; 1423 1424 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 1425 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 1426 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 1427 return; 1428 1429 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 1430 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 1431 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 1432 1433 if (max_bw < 20) 1434 return; 1435 1436 for (m = 0; m < *results->num_modes; m++) { 1437 if (!(results->modes[m].ht_capab & 1438 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 1439 continue; 1440 nl80211_set_ht40_mode_sec(&results->modes[m], start, end); 1441 } 1442 } 1443 1444 1445 static void nl80211_set_vht_mode(struct hostapd_hw_modes *mode, int start, 1446 int end, int max_bw) 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->freq - 10 >= start && chan->freq + 70 <= end) 1453 chan->flag |= HOSTAPD_CHAN_VHT_10_70; 1454 1455 if (chan->freq - 30 >= start && chan->freq + 50 <= end) 1456 chan->flag |= HOSTAPD_CHAN_VHT_30_50; 1457 1458 if (chan->freq - 50 >= start && chan->freq + 30 <= end) 1459 chan->flag |= HOSTAPD_CHAN_VHT_50_30; 1460 1461 if (chan->freq - 70 >= start && chan->freq + 10 <= end) 1462 chan->flag |= HOSTAPD_CHAN_VHT_70_10; 1463 1464 if (max_bw >= 160) { 1465 if (chan->freq - 10 >= start && chan->freq + 150 <= end) 1466 chan->flag |= HOSTAPD_CHAN_VHT_10_150; 1467 1468 if (chan->freq - 30 >= start && chan->freq + 130 <= end) 1469 chan->flag |= HOSTAPD_CHAN_VHT_30_130; 1470 1471 if (chan->freq - 50 >= start && chan->freq + 110 <= end) 1472 chan->flag |= HOSTAPD_CHAN_VHT_50_110; 1473 1474 if (chan->freq - 70 >= start && chan->freq + 90 <= end) 1475 chan->flag |= HOSTAPD_CHAN_VHT_70_90; 1476 1477 if (chan->freq - 90 >= start && chan->freq + 70 <= end) 1478 chan->flag |= HOSTAPD_CHAN_VHT_90_70; 1479 1480 if (chan->freq - 110 >= start && chan->freq + 50 <= end) 1481 chan->flag |= HOSTAPD_CHAN_VHT_110_50; 1482 1483 if (chan->freq - 130 >= start && chan->freq + 30 <= end) 1484 chan->flag |= HOSTAPD_CHAN_VHT_130_30; 1485 1486 if (chan->freq - 150 >= start && chan->freq + 10 <= end) 1487 chan->flag |= HOSTAPD_CHAN_VHT_150_10; 1488 } 1489 } 1490 } 1491 1492 1493 static void nl80211_reg_rule_vht(struct nlattr *tb[], 1494 struct phy_info_arg *results) 1495 { 1496 u32 start, end, max_bw; 1497 u16 m; 1498 1499 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 1500 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 1501 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 1502 return; 1503 1504 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 1505 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 1506 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 1507 1508 if (max_bw < 80) 1509 return; 1510 1511 for (m = 0; m < *results->num_modes; m++) { 1512 if (!(results->modes[m].ht_capab & 1513 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 1514 continue; 1515 /* TODO: use a real VHT support indication */ 1516 if (!results->modes[m].vht_capab) 1517 continue; 1518 1519 nl80211_set_vht_mode(&results->modes[m], start, end, max_bw); 1520 } 1521 } 1522 1523 1524 static const char * dfs_domain_name(enum nl80211_dfs_regions region) 1525 { 1526 switch (region) { 1527 case NL80211_DFS_UNSET: 1528 return "DFS-UNSET"; 1529 case NL80211_DFS_FCC: 1530 return "DFS-FCC"; 1531 case NL80211_DFS_ETSI: 1532 return "DFS-ETSI"; 1533 case NL80211_DFS_JP: 1534 return "DFS-JP"; 1535 default: 1536 return "DFS-invalid"; 1537 } 1538 } 1539 1540 1541 static int nl80211_get_reg(struct nl_msg *msg, void *arg) 1542 { 1543 struct phy_info_arg *results = arg; 1544 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 1545 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 1546 struct nlattr *nl_rule; 1547 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1]; 1548 int rem_rule; 1549 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 1550 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, 1551 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, 1552 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, 1553 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, 1554 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, 1555 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, 1556 }; 1557 1558 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 1559 genlmsg_attrlen(gnlh, 0), NULL); 1560 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] || 1561 !tb_msg[NL80211_ATTR_REG_RULES]) { 1562 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information " 1563 "available"); 1564 return NL_SKIP; 1565 } 1566 1567 if (tb_msg[NL80211_ATTR_DFS_REGION]) { 1568 enum nl80211_dfs_regions dfs_domain; 1569 dfs_domain = nla_get_u8(tb_msg[NL80211_ATTR_DFS_REGION]); 1570 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s (%s)", 1571 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]), 1572 dfs_domain_name(dfs_domain)); 1573 } else { 1574 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s", 1575 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2])); 1576 } 1577 1578 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 1579 { 1580 u32 start, end, max_eirp = 0, max_bw = 0, flags = 0; 1581 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 1582 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 1583 if (tb_rule[NL80211_ATTR_FREQ_RANGE_START] == NULL || 1584 tb_rule[NL80211_ATTR_FREQ_RANGE_END] == NULL) 1585 continue; 1586 start = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 1587 end = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 1588 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) 1589 max_eirp = nla_get_u32(tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) / 100; 1590 if (tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) 1591 max_bw = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 1592 if (tb_rule[NL80211_ATTR_REG_RULE_FLAGS]) 1593 flags = nla_get_u32(tb_rule[NL80211_ATTR_REG_RULE_FLAGS]); 1594 1595 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz %u mBm%s%s%s%s%s%s%s%s", 1596 start, end, max_bw, max_eirp, 1597 flags & NL80211_RRF_NO_OFDM ? " (no OFDM)" : "", 1598 flags & NL80211_RRF_NO_CCK ? " (no CCK)" : "", 1599 flags & NL80211_RRF_NO_INDOOR ? " (no indoor)" : "", 1600 flags & NL80211_RRF_NO_OUTDOOR ? " (no outdoor)" : 1601 "", 1602 flags & NL80211_RRF_DFS ? " (DFS)" : "", 1603 flags & NL80211_RRF_PTP_ONLY ? " (PTP only)" : "", 1604 flags & NL80211_RRF_PTMP_ONLY ? " (PTMP only)" : "", 1605 flags & NL80211_RRF_NO_IR ? " (no IR)" : ""); 1606 if (max_bw >= 40) 1607 nl80211_reg_rule_ht40(start, end, results); 1608 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) 1609 nl80211_reg_rule_max_eirp(start, end, max_eirp, 1610 results); 1611 } 1612 1613 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 1614 { 1615 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 1616 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 1617 nl80211_reg_rule_sec(tb_rule, results); 1618 } 1619 1620 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 1621 { 1622 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 1623 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 1624 nl80211_reg_rule_vht(tb_rule, results); 1625 } 1626 1627 return NL_SKIP; 1628 } 1629 1630 1631 static int nl80211_set_regulatory_flags(struct wpa_driver_nl80211_data *drv, 1632 struct phy_info_arg *results) 1633 { 1634 struct nl_msg *msg; 1635 1636 msg = nlmsg_alloc(); 1637 if (!msg) 1638 return -ENOMEM; 1639 1640 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 1641 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results); 1642 } 1643 1644 1645 struct hostapd_hw_modes * 1646 nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags) 1647 { 1648 u32 feat; 1649 struct i802_bss *bss = priv; 1650 struct wpa_driver_nl80211_data *drv = bss->drv; 1651 int nl_flags = 0; 1652 struct nl_msg *msg; 1653 struct phy_info_arg result = { 1654 .num_modes = num_modes, 1655 .modes = NULL, 1656 .last_mode = -1, 1657 .failed = 0, 1658 }; 1659 1660 *num_modes = 0; 1661 *flags = 0; 1662 1663 feat = get_nl80211_protocol_features(drv); 1664 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 1665 nl_flags = NLM_F_DUMP; 1666 if (!(msg = nl80211_cmd_msg(bss, nl_flags, NL80211_CMD_GET_WIPHY)) || 1667 nla_put_flag(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP)) { 1668 nlmsg_free(msg); 1669 return NULL; 1670 } 1671 1672 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) { 1673 nl80211_set_regulatory_flags(drv, &result); 1674 if (result.failed) { 1675 int i; 1676 1677 for (i = 0; result.modes && i < *num_modes; i++) { 1678 os_free(result.modes[i].channels); 1679 os_free(result.modes[i].rates); 1680 } 1681 os_free(result.modes); 1682 return NULL; 1683 } 1684 return wpa_driver_nl80211_postprocess_modes(result.modes, 1685 num_modes); 1686 } 1687 1688 return NULL; 1689 } 1690
