1 /* 2 * Driver interaction with Linux nl80211/cfg80211 3 * Copyright (c) 2002-2014, Jouni Malinen <j (at) w1.fi> 4 * Copyright (c) 2003-2004, Instant802 Networks, Inc. 5 * Copyright (c) 2005-2006, Devicescape Software, Inc. 6 * Copyright (c) 2007, Johannes Berg <johannes (at) sipsolutions.net> 7 * Copyright (c) 2009-2010, Atheros Communications 8 * 9 * This software may be distributed under the terms of the BSD license. 10 * See README for more details. 11 */ 12 13 #include "includes.h" 14 #include <sys/ioctl.h> 15 #include <sys/types.h> 16 #include <sys/stat.h> 17 #include <fcntl.h> 18 #include <net/if.h> 19 #include <netlink/genl/genl.h> 20 #include <netlink/genl/family.h> 21 #include <netlink/genl/ctrl.h> 22 #ifdef CONFIG_LIBNL3_ROUTE 23 #include <netlink/route/neighbour.h> 24 #endif /* CONFIG_LIBNL3_ROUTE */ 25 #include <linux/rtnetlink.h> 26 #include <netpacket/packet.h> 27 #include <linux/filter.h> 28 #include <linux/errqueue.h> 29 #include "nl80211_copy.h" 30 31 #include "common.h" 32 #include "eloop.h" 33 #include "utils/list.h" 34 #include "common/qca-vendor.h" 35 #include "common/qca-vendor-attr.h" 36 #include "common/ieee802_11_defs.h" 37 #include "common/ieee802_11_common.h" 38 #include "l2_packet/l2_packet.h" 39 #include "netlink.h" 40 #include "linux_ioctl.h" 41 #include "radiotap.h" 42 #include "radiotap_iter.h" 43 #include "rfkill.h" 44 #include "driver.h" 45 46 #ifndef SO_WIFI_STATUS 47 # if defined(__sparc__) 48 # define SO_WIFI_STATUS 0x0025 49 # elif defined(__parisc__) 50 # define SO_WIFI_STATUS 0x4022 51 # else 52 # define SO_WIFI_STATUS 41 53 # endif 54 55 # define SCM_WIFI_STATUS SO_WIFI_STATUS 56 #endif 57 58 #ifndef SO_EE_ORIGIN_TXSTATUS 59 #define SO_EE_ORIGIN_TXSTATUS 4 60 #endif 61 62 #ifndef PACKET_TX_TIMESTAMP 63 #define PACKET_TX_TIMESTAMP 16 64 #endif 65 66 #ifdef ANDROID 67 #include "android_drv.h" 68 #endif /* ANDROID */ 69 #ifdef CONFIG_LIBNL20 70 /* libnl 2.0 compatibility code */ 71 #define nl_handle nl_sock 72 #define nl80211_handle_alloc nl_socket_alloc_cb 73 #define nl80211_handle_destroy nl_socket_free 74 #else 75 /* 76 * libnl 1.1 has a bug, it tries to allocate socket numbers densely 77 * but when you free a socket again it will mess up its bitmap and 78 * and use the wrong number the next time it needs a socket ID. 79 * Therefore, we wrap the handle alloc/destroy and add our own pid 80 * accounting. 81 */ 82 static uint32_t port_bitmap[32] = { 0 }; 83 84 static struct nl_handle *nl80211_handle_alloc(void *cb) 85 { 86 struct nl_handle *handle; 87 uint32_t pid = getpid() & 0x3FFFFF; 88 int i; 89 90 handle = nl_handle_alloc_cb(cb); 91 92 for (i = 0; i < 1024; i++) { 93 if (port_bitmap[i / 32] & (1 << (i % 32))) 94 continue; 95 port_bitmap[i / 32] |= 1 << (i % 32); 96 pid += i << 22; 97 break; 98 } 99 100 nl_socket_set_local_port(handle, pid); 101 102 return handle; 103 } 104 105 static void nl80211_handle_destroy(struct nl_handle *handle) 106 { 107 uint32_t port = nl_socket_get_local_port(handle); 108 109 port >>= 22; 110 port_bitmap[port / 32] &= ~(1 << (port % 32)); 111 112 nl_handle_destroy(handle); 113 } 114 #endif /* CONFIG_LIBNL20 */ 115 116 117 #ifdef ANDROID 118 /* system/core/libnl_2 does not include nl_socket_set_nonblocking() */ 119 static int android_nl_socket_set_nonblocking(struct nl_handle *handle) 120 { 121 return fcntl(nl_socket_get_fd(handle), F_SETFL, O_NONBLOCK); 122 } 123 #undef nl_socket_set_nonblocking 124 #define nl_socket_set_nonblocking(h) android_nl_socket_set_nonblocking(h) 125 #endif /* ANDROID */ 126 127 128 static struct nl_handle * nl_create_handle(struct nl_cb *cb, const char *dbg) 129 { 130 struct nl_handle *handle; 131 132 handle = nl80211_handle_alloc(cb); 133 if (handle == NULL) { 134 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " 135 "callbacks (%s)", dbg); 136 return NULL; 137 } 138 139 if (genl_connect(handle)) { 140 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic " 141 "netlink (%s)", dbg); 142 nl80211_handle_destroy(handle); 143 return NULL; 144 } 145 146 return handle; 147 } 148 149 150 static void nl_destroy_handles(struct nl_handle **handle) 151 { 152 if (*handle == NULL) 153 return; 154 nl80211_handle_destroy(*handle); 155 *handle = NULL; 156 } 157 158 159 #if __WORDSIZE == 64 160 #define ELOOP_SOCKET_INVALID (intptr_t) 0x8888888888888889ULL 161 #else 162 #define ELOOP_SOCKET_INVALID (intptr_t) 0x88888889ULL 163 #endif 164 165 static void nl80211_register_eloop_read(struct nl_handle **handle, 166 eloop_sock_handler handler, 167 void *eloop_data) 168 { 169 nl_socket_set_nonblocking(*handle); 170 eloop_register_read_sock(nl_socket_get_fd(*handle), handler, 171 eloop_data, *handle); 172 *handle = (void *) (((intptr_t) *handle) ^ ELOOP_SOCKET_INVALID); 173 } 174 175 176 static void nl80211_destroy_eloop_handle(struct nl_handle **handle) 177 { 178 *handle = (void *) (((intptr_t) *handle) ^ ELOOP_SOCKET_INVALID); 179 eloop_unregister_read_sock(nl_socket_get_fd(*handle)); 180 nl_destroy_handles(handle); 181 } 182 183 184 #ifndef IFF_LOWER_UP 185 #define IFF_LOWER_UP 0x10000 /* driver signals L1 up */ 186 #endif 187 #ifndef IFF_DORMANT 188 #define IFF_DORMANT 0x20000 /* driver signals dormant */ 189 #endif 190 191 #ifndef IF_OPER_DORMANT 192 #define IF_OPER_DORMANT 5 193 #endif 194 #ifndef IF_OPER_UP 195 #define IF_OPER_UP 6 196 #endif 197 198 struct nl80211_global { 199 struct dl_list interfaces; 200 int if_add_ifindex; 201 u64 if_add_wdevid; 202 int if_add_wdevid_set; 203 struct netlink_data *netlink; 204 struct nl_cb *nl_cb; 205 struct nl_handle *nl; 206 int nl80211_id; 207 int ioctl_sock; /* socket for ioctl() use */ 208 209 struct nl_handle *nl_event; 210 }; 211 212 struct nl80211_wiphy_data { 213 struct dl_list list; 214 struct dl_list bsss; 215 struct dl_list drvs; 216 217 struct nl_handle *nl_beacons; 218 struct nl_cb *nl_cb; 219 220 int wiphy_idx; 221 }; 222 223 static void nl80211_global_deinit(void *priv); 224 225 struct i802_bss { 226 struct wpa_driver_nl80211_data *drv; 227 struct i802_bss *next; 228 int ifindex; 229 u64 wdev_id; 230 char ifname[IFNAMSIZ + 1]; 231 char brname[IFNAMSIZ]; 232 unsigned int beacon_set:1; 233 unsigned int added_if_into_bridge:1; 234 unsigned int added_bridge:1; 235 unsigned int in_deinit:1; 236 unsigned int wdev_id_set:1; 237 unsigned int added_if:1; 238 unsigned int static_ap:1; 239 240 u8 addr[ETH_ALEN]; 241 242 int freq; 243 int bandwidth; 244 int if_dynamic; 245 246 void *ctx; 247 struct nl_handle *nl_preq, *nl_mgmt; 248 struct nl_cb *nl_cb; 249 250 struct nl80211_wiphy_data *wiphy_data; 251 struct dl_list wiphy_list; 252 }; 253 254 struct wpa_driver_nl80211_data { 255 struct nl80211_global *global; 256 struct dl_list list; 257 struct dl_list wiphy_list; 258 char phyname[32]; 259 u8 perm_addr[ETH_ALEN]; 260 void *ctx; 261 int ifindex; 262 int if_removed; 263 int if_disabled; 264 int ignore_if_down_event; 265 struct rfkill_data *rfkill; 266 struct wpa_driver_capa capa; 267 u8 *extended_capa, *extended_capa_mask; 268 unsigned int extended_capa_len; 269 int has_capability; 270 271 int operstate; 272 273 int scan_complete_events; 274 enum scan_states { 275 NO_SCAN, SCAN_REQUESTED, SCAN_STARTED, SCAN_COMPLETED, 276 SCAN_ABORTED, SCHED_SCAN_STARTED, SCHED_SCAN_STOPPED, 277 SCHED_SCAN_RESULTS 278 } scan_state; 279 280 struct nl_cb *nl_cb; 281 282 u8 auth_bssid[ETH_ALEN]; 283 u8 auth_attempt_bssid[ETH_ALEN]; 284 u8 bssid[ETH_ALEN]; 285 u8 prev_bssid[ETH_ALEN]; 286 int associated; 287 u8 ssid[32]; 288 size_t ssid_len; 289 enum nl80211_iftype nlmode; 290 enum nl80211_iftype ap_scan_as_station; 291 unsigned int assoc_freq; 292 293 int monitor_sock; 294 int monitor_ifidx; 295 int monitor_refcount; 296 297 unsigned int disabled_11b_rates:1; 298 unsigned int pending_remain_on_chan:1; 299 unsigned int in_interface_list:1; 300 unsigned int device_ap_sme:1; 301 unsigned int poll_command_supported:1; 302 unsigned int data_tx_status:1; 303 unsigned int scan_for_auth:1; 304 unsigned int retry_auth:1; 305 unsigned int use_monitor:1; 306 unsigned int ignore_next_local_disconnect:1; 307 unsigned int ignore_next_local_deauth:1; 308 unsigned int allow_p2p_device:1; 309 unsigned int hostapd:1; 310 unsigned int start_mode_ap:1; 311 unsigned int start_iface_up:1; 312 unsigned int test_use_roc_tx:1; 313 unsigned int ignore_deauth_event:1; 314 unsigned int roaming_vendor_cmd_avail:1; 315 unsigned int dfs_vendor_cmd_avail:1; 316 unsigned int have_low_prio_scan:1; 317 unsigned int force_connect_cmd:1; 318 unsigned int addr_changed:1; 319 320 u64 remain_on_chan_cookie; 321 u64 send_action_cookie; 322 323 unsigned int last_mgmt_freq; 324 325 struct wpa_driver_scan_filter *filter_ssids; 326 size_t num_filter_ssids; 327 328 struct i802_bss *first_bss; 329 330 int eapol_tx_sock; 331 332 int eapol_sock; /* socket for EAPOL frames */ 333 334 struct nl_handle *rtnl_sk; /* nl_sock for NETLINK_ROUTE */ 335 336 int default_if_indices[16]; 337 int *if_indices; 338 int num_if_indices; 339 340 /* From failed authentication command */ 341 int auth_freq; 342 u8 auth_bssid_[ETH_ALEN]; 343 u8 auth_ssid[32]; 344 size_t auth_ssid_len; 345 int auth_alg; 346 u8 *auth_ie; 347 size_t auth_ie_len; 348 u8 auth_wep_key[4][16]; 349 size_t auth_wep_key_len[4]; 350 int auth_wep_tx_keyidx; 351 int auth_local_state_change; 352 int auth_p2p; 353 }; 354 355 356 static void wpa_driver_nl80211_deinit(struct i802_bss *bss); 357 static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, 358 void *timeout_ctx); 359 static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 360 enum nl80211_iftype nlmode); 361 static int wpa_driver_nl80211_set_mode_ibss(struct i802_bss *bss, 362 struct hostapd_freq_params *freq); 363 364 static int 365 wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv, 366 const u8 *set_addr, int first); 367 static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 368 const u8 *addr, int cmd, u16 reason_code, 369 int local_state_change); 370 static void nl80211_remove_monitor_interface( 371 struct wpa_driver_nl80211_data *drv); 372 static int nl80211_send_frame_cmd(struct i802_bss *bss, 373 unsigned int freq, unsigned int wait, 374 const u8 *buf, size_t buf_len, u64 *cookie, 375 int no_cck, int no_ack, int offchanok); 376 static int nl80211_register_frame(struct i802_bss *bss, 377 struct nl_handle *hl_handle, 378 u16 type, const u8 *match, size_t match_len); 379 static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, 380 int report); 381 #ifdef ANDROID 382 static int android_pno_start(struct i802_bss *bss, 383 struct wpa_driver_scan_params *params); 384 static int android_pno_stop(struct i802_bss *bss); 385 extern int wpa_driver_nl80211_driver_cmd(void *priv, char *cmd, char *buf, 386 size_t buf_len); 387 #endif /* ANDROID */ 388 #ifdef ANDROID_P2P 389 #ifdef ANDROID_P2P_STUB 390 int wpa_driver_set_p2p_noa(void *priv, u8 count, int start, int duration) { 391 return 0; 392 } 393 int wpa_driver_get_p2p_noa(void *priv, u8 *buf, size_t len) { 394 return 0; 395 } 396 int wpa_driver_set_p2p_ps(void *priv, int legacy_ps, int opp_ps, int ctwindow) { 397 return -1; 398 } 399 int wpa_driver_set_ap_wps_p2p_ie(void *priv, const struct wpabuf *beacon, 400 const struct wpabuf *proberesp, 401 const struct wpabuf *assocresp) { 402 return 0; 403 } 404 #else /* ANDROID_P2P_STUB */ 405 int wpa_driver_set_p2p_noa(void *priv, u8 count, int start, int duration); 406 int wpa_driver_get_p2p_noa(void *priv, u8 *buf, size_t len); 407 int wpa_driver_set_p2p_ps(void *priv, int legacy_ps, int opp_ps, int ctwindow); 408 int wpa_driver_set_ap_wps_p2p_ie(void *priv, const struct wpabuf *beacon, 409 const struct wpabuf *proberesp, 410 const struct wpabuf *assocresp); 411 #endif /* ANDROID_P2P_STUB */ 412 #endif /* ANDROID_P2P */ 413 414 static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 415 static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 416 static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 417 static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 418 enum wpa_driver_if_type type, 419 const char *ifname); 420 421 static int nl80211_set_channel(struct i802_bss *bss, 422 struct hostapd_freq_params *freq, int set_chan); 423 static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 424 int ifindex, int disabled); 425 426 static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv); 427 static int wpa_driver_nl80211_authenticate_retry( 428 struct wpa_driver_nl80211_data *drv); 429 430 static int i802_set_freq(void *priv, struct hostapd_freq_params *freq); 431 static int i802_set_iface_flags(struct i802_bss *bss, int up); 432 433 434 static const char * nl80211_command_to_string(enum nl80211_commands cmd) 435 { 436 #define C2S(x) case x: return #x; 437 switch (cmd) { 438 C2S(NL80211_CMD_UNSPEC) 439 C2S(NL80211_CMD_GET_WIPHY) 440 C2S(NL80211_CMD_SET_WIPHY) 441 C2S(NL80211_CMD_NEW_WIPHY) 442 C2S(NL80211_CMD_DEL_WIPHY) 443 C2S(NL80211_CMD_GET_INTERFACE) 444 C2S(NL80211_CMD_SET_INTERFACE) 445 C2S(NL80211_CMD_NEW_INTERFACE) 446 C2S(NL80211_CMD_DEL_INTERFACE) 447 C2S(NL80211_CMD_GET_KEY) 448 C2S(NL80211_CMD_SET_KEY) 449 C2S(NL80211_CMD_NEW_KEY) 450 C2S(NL80211_CMD_DEL_KEY) 451 C2S(NL80211_CMD_GET_BEACON) 452 C2S(NL80211_CMD_SET_BEACON) 453 C2S(NL80211_CMD_START_AP) 454 C2S(NL80211_CMD_STOP_AP) 455 C2S(NL80211_CMD_GET_STATION) 456 C2S(NL80211_CMD_SET_STATION) 457 C2S(NL80211_CMD_NEW_STATION) 458 C2S(NL80211_CMD_DEL_STATION) 459 C2S(NL80211_CMD_GET_MPATH) 460 C2S(NL80211_CMD_SET_MPATH) 461 C2S(NL80211_CMD_NEW_MPATH) 462 C2S(NL80211_CMD_DEL_MPATH) 463 C2S(NL80211_CMD_SET_BSS) 464 C2S(NL80211_CMD_SET_REG) 465 C2S(NL80211_CMD_REQ_SET_REG) 466 C2S(NL80211_CMD_GET_MESH_CONFIG) 467 C2S(NL80211_CMD_SET_MESH_CONFIG) 468 C2S(NL80211_CMD_SET_MGMT_EXTRA_IE) 469 C2S(NL80211_CMD_GET_REG) 470 C2S(NL80211_CMD_GET_SCAN) 471 C2S(NL80211_CMD_TRIGGER_SCAN) 472 C2S(NL80211_CMD_NEW_SCAN_RESULTS) 473 C2S(NL80211_CMD_SCAN_ABORTED) 474 C2S(NL80211_CMD_REG_CHANGE) 475 C2S(NL80211_CMD_AUTHENTICATE) 476 C2S(NL80211_CMD_ASSOCIATE) 477 C2S(NL80211_CMD_DEAUTHENTICATE) 478 C2S(NL80211_CMD_DISASSOCIATE) 479 C2S(NL80211_CMD_MICHAEL_MIC_FAILURE) 480 C2S(NL80211_CMD_REG_BEACON_HINT) 481 C2S(NL80211_CMD_JOIN_IBSS) 482 C2S(NL80211_CMD_LEAVE_IBSS) 483 C2S(NL80211_CMD_TESTMODE) 484 C2S(NL80211_CMD_CONNECT) 485 C2S(NL80211_CMD_ROAM) 486 C2S(NL80211_CMD_DISCONNECT) 487 C2S(NL80211_CMD_SET_WIPHY_NETNS) 488 C2S(NL80211_CMD_GET_SURVEY) 489 C2S(NL80211_CMD_NEW_SURVEY_RESULTS) 490 C2S(NL80211_CMD_SET_PMKSA) 491 C2S(NL80211_CMD_DEL_PMKSA) 492 C2S(NL80211_CMD_FLUSH_PMKSA) 493 C2S(NL80211_CMD_REMAIN_ON_CHANNEL) 494 C2S(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL) 495 C2S(NL80211_CMD_SET_TX_BITRATE_MASK) 496 C2S(NL80211_CMD_REGISTER_FRAME) 497 C2S(NL80211_CMD_FRAME) 498 C2S(NL80211_CMD_FRAME_TX_STATUS) 499 C2S(NL80211_CMD_SET_POWER_SAVE) 500 C2S(NL80211_CMD_GET_POWER_SAVE) 501 C2S(NL80211_CMD_SET_CQM) 502 C2S(NL80211_CMD_NOTIFY_CQM) 503 C2S(NL80211_CMD_SET_CHANNEL) 504 C2S(NL80211_CMD_SET_WDS_PEER) 505 C2S(NL80211_CMD_FRAME_WAIT_CANCEL) 506 C2S(NL80211_CMD_JOIN_MESH) 507 C2S(NL80211_CMD_LEAVE_MESH) 508 C2S(NL80211_CMD_UNPROT_DEAUTHENTICATE) 509 C2S(NL80211_CMD_UNPROT_DISASSOCIATE) 510 C2S(NL80211_CMD_NEW_PEER_CANDIDATE) 511 C2S(NL80211_CMD_GET_WOWLAN) 512 C2S(NL80211_CMD_SET_WOWLAN) 513 C2S(NL80211_CMD_START_SCHED_SCAN) 514 C2S(NL80211_CMD_STOP_SCHED_SCAN) 515 C2S(NL80211_CMD_SCHED_SCAN_RESULTS) 516 C2S(NL80211_CMD_SCHED_SCAN_STOPPED) 517 C2S(NL80211_CMD_SET_REKEY_OFFLOAD) 518 C2S(NL80211_CMD_PMKSA_CANDIDATE) 519 C2S(NL80211_CMD_TDLS_OPER) 520 C2S(NL80211_CMD_TDLS_MGMT) 521 C2S(NL80211_CMD_UNEXPECTED_FRAME) 522 C2S(NL80211_CMD_PROBE_CLIENT) 523 C2S(NL80211_CMD_REGISTER_BEACONS) 524 C2S(NL80211_CMD_UNEXPECTED_4ADDR_FRAME) 525 C2S(NL80211_CMD_SET_NOACK_MAP) 526 C2S(NL80211_CMD_CH_SWITCH_NOTIFY) 527 C2S(NL80211_CMD_START_P2P_DEVICE) 528 C2S(NL80211_CMD_STOP_P2P_DEVICE) 529 C2S(NL80211_CMD_CONN_FAILED) 530 C2S(NL80211_CMD_SET_MCAST_RATE) 531 C2S(NL80211_CMD_SET_MAC_ACL) 532 C2S(NL80211_CMD_RADAR_DETECT) 533 C2S(NL80211_CMD_GET_PROTOCOL_FEATURES) 534 C2S(NL80211_CMD_UPDATE_FT_IES) 535 C2S(NL80211_CMD_FT_EVENT) 536 C2S(NL80211_CMD_CRIT_PROTOCOL_START) 537 C2S(NL80211_CMD_CRIT_PROTOCOL_STOP) 538 C2S(NL80211_CMD_GET_COALESCE) 539 C2S(NL80211_CMD_SET_COALESCE) 540 C2S(NL80211_CMD_CHANNEL_SWITCH) 541 C2S(NL80211_CMD_VENDOR) 542 C2S(NL80211_CMD_SET_QOS_MAP) 543 default: 544 return "NL80211_CMD_UNKNOWN"; 545 } 546 #undef C2S 547 } 548 549 550 /* Converts nl80211_chan_width to a common format */ 551 static enum chan_width convert2width(int width) 552 { 553 switch (width) { 554 case NL80211_CHAN_WIDTH_20_NOHT: 555 return CHAN_WIDTH_20_NOHT; 556 case NL80211_CHAN_WIDTH_20: 557 return CHAN_WIDTH_20; 558 case NL80211_CHAN_WIDTH_40: 559 return CHAN_WIDTH_40; 560 case NL80211_CHAN_WIDTH_80: 561 return CHAN_WIDTH_80; 562 case NL80211_CHAN_WIDTH_80P80: 563 return CHAN_WIDTH_80P80; 564 case NL80211_CHAN_WIDTH_160: 565 return CHAN_WIDTH_160; 566 } 567 return CHAN_WIDTH_UNKNOWN; 568 } 569 570 571 static int is_ap_interface(enum nl80211_iftype nlmode) 572 { 573 return nlmode == NL80211_IFTYPE_AP || 574 nlmode == NL80211_IFTYPE_P2P_GO; 575 } 576 577 578 static int is_sta_interface(enum nl80211_iftype nlmode) 579 { 580 return nlmode == NL80211_IFTYPE_STATION || 581 nlmode == NL80211_IFTYPE_P2P_CLIENT; 582 } 583 584 585 static int is_p2p_net_interface(enum nl80211_iftype nlmode) 586 { 587 return nlmode == NL80211_IFTYPE_P2P_CLIENT || 588 nlmode == NL80211_IFTYPE_P2P_GO; 589 } 590 591 592 static struct i802_bss * get_bss_ifindex(struct wpa_driver_nl80211_data *drv, 593 int ifindex) 594 { 595 struct i802_bss *bss; 596 597 for (bss = drv->first_bss; bss; bss = bss->next) { 598 if (bss->ifindex == ifindex) 599 return bss; 600 } 601 602 return NULL; 603 } 604 605 606 static void nl80211_mark_disconnected(struct wpa_driver_nl80211_data *drv) 607 { 608 if (drv->associated) 609 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); 610 drv->associated = 0; 611 os_memset(drv->bssid, 0, ETH_ALEN); 612 } 613 614 615 struct nl80211_bss_info_arg { 616 struct wpa_driver_nl80211_data *drv; 617 struct wpa_scan_results *res; 618 unsigned int assoc_freq; 619 unsigned int ibss_freq; 620 u8 assoc_bssid[ETH_ALEN]; 621 }; 622 623 static int bss_info_handler(struct nl_msg *msg, void *arg); 624 625 626 /* nl80211 code */ 627 static int ack_handler(struct nl_msg *msg, void *arg) 628 { 629 int *err = arg; 630 *err = 0; 631 return NL_STOP; 632 } 633 634 static int finish_handler(struct nl_msg *msg, void *arg) 635 { 636 int *ret = arg; 637 *ret = 0; 638 return NL_SKIP; 639 } 640 641 static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err, 642 void *arg) 643 { 644 int *ret = arg; 645 *ret = err->error; 646 return NL_SKIP; 647 } 648 649 650 static int no_seq_check(struct nl_msg *msg, void *arg) 651 { 652 return NL_OK; 653 } 654 655 656 static int send_and_recv(struct nl80211_global *global, 657 struct nl_handle *nl_handle, struct nl_msg *msg, 658 int (*valid_handler)(struct nl_msg *, void *), 659 void *valid_data) 660 { 661 struct nl_cb *cb; 662 int err = -ENOMEM; 663 664 cb = nl_cb_clone(global->nl_cb); 665 if (!cb) 666 goto out; 667 668 err = nl_send_auto_complete(nl_handle, msg); 669 if (err < 0) 670 goto out; 671 672 err = 1; 673 674 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err); 675 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err); 676 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err); 677 678 if (valid_handler) 679 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, 680 valid_handler, valid_data); 681 682 while (err > 0) { 683 int res = nl_recvmsgs(nl_handle, cb); 684 if (res < 0) { 685 wpa_printf(MSG_INFO, 686 "nl80211: %s->nl_recvmsgs failed: %d", 687 __func__, res); 688 } 689 } 690 out: 691 nl_cb_put(cb); 692 nlmsg_free(msg); 693 return err; 694 } 695 696 697 static int send_and_recv_msgs_global(struct nl80211_global *global, 698 struct nl_msg *msg, 699 int (*valid_handler)(struct nl_msg *, void *), 700 void *valid_data) 701 { 702 return send_and_recv(global, global->nl, msg, valid_handler, 703 valid_data); 704 } 705 706 707 static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv, 708 struct nl_msg *msg, 709 int (*valid_handler)(struct nl_msg *, void *), 710 void *valid_data) 711 { 712 return send_and_recv(drv->global, drv->global->nl, msg, 713 valid_handler, valid_data); 714 } 715 716 717 struct family_data { 718 const char *group; 719 int id; 720 }; 721 722 723 static int nl80211_set_iface_id(struct nl_msg *msg, struct i802_bss *bss) 724 { 725 if (bss->wdev_id_set) 726 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 727 else 728 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 729 return 0; 730 731 nla_put_failure: 732 return -1; 733 } 734 735 736 static int family_handler(struct nl_msg *msg, void *arg) 737 { 738 struct family_data *res = arg; 739 struct nlattr *tb[CTRL_ATTR_MAX + 1]; 740 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 741 struct nlattr *mcgrp; 742 int i; 743 744 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 745 genlmsg_attrlen(gnlh, 0), NULL); 746 if (!tb[CTRL_ATTR_MCAST_GROUPS]) 747 return NL_SKIP; 748 749 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) { 750 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1]; 751 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp), 752 nla_len(mcgrp), NULL); 753 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] || 754 !tb2[CTRL_ATTR_MCAST_GRP_ID] || 755 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]), 756 res->group, 757 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0) 758 continue; 759 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]); 760 break; 761 }; 762 763 return NL_SKIP; 764 } 765 766 767 static int nl_get_multicast_id(struct nl80211_global *global, 768 const char *family, const char *group) 769 { 770 struct nl_msg *msg; 771 int ret = -1; 772 struct family_data res = { group, -ENOENT }; 773 774 msg = nlmsg_alloc(); 775 if (!msg) 776 return -ENOMEM; 777 genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"), 778 0, 0, CTRL_CMD_GETFAMILY, 0); 779 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family); 780 781 ret = send_and_recv_msgs_global(global, msg, family_handler, &res); 782 msg = NULL; 783 if (ret == 0) 784 ret = res.id; 785 786 nla_put_failure: 787 nlmsg_free(msg); 788 return ret; 789 } 790 791 792 static void * nl80211_cmd(struct wpa_driver_nl80211_data *drv, 793 struct nl_msg *msg, int flags, uint8_t cmd) 794 { 795 return genlmsg_put(msg, 0, 0, drv->global->nl80211_id, 796 0, flags, cmd, 0); 797 } 798 799 800 struct wiphy_idx_data { 801 int wiphy_idx; 802 enum nl80211_iftype nlmode; 803 u8 *macaddr; 804 }; 805 806 807 static int netdev_info_handler(struct nl_msg *msg, void *arg) 808 { 809 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 810 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 811 struct wiphy_idx_data *info = arg; 812 813 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 814 genlmsg_attrlen(gnlh, 0), NULL); 815 816 if (tb[NL80211_ATTR_WIPHY]) 817 info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]); 818 819 if (tb[NL80211_ATTR_IFTYPE]) 820 info->nlmode = nla_get_u32(tb[NL80211_ATTR_IFTYPE]); 821 822 if (tb[NL80211_ATTR_MAC] && info->macaddr) 823 os_memcpy(info->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 824 ETH_ALEN); 825 826 return NL_SKIP; 827 } 828 829 830 static int nl80211_get_wiphy_index(struct i802_bss *bss) 831 { 832 struct nl_msg *msg; 833 struct wiphy_idx_data data = { 834 .wiphy_idx = -1, 835 .macaddr = NULL, 836 }; 837 838 msg = nlmsg_alloc(); 839 if (!msg) 840 return NL80211_IFTYPE_UNSPECIFIED; 841 842 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 843 844 if (nl80211_set_iface_id(msg, bss) < 0) 845 goto nla_put_failure; 846 847 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) 848 return data.wiphy_idx; 849 msg = NULL; 850 nla_put_failure: 851 nlmsg_free(msg); 852 return -1; 853 } 854 855 856 static enum nl80211_iftype nl80211_get_ifmode(struct i802_bss *bss) 857 { 858 struct nl_msg *msg; 859 struct wiphy_idx_data data = { 860 .nlmode = NL80211_IFTYPE_UNSPECIFIED, 861 .macaddr = NULL, 862 }; 863 864 msg = nlmsg_alloc(); 865 if (!msg) 866 return -1; 867 868 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 869 870 if (nl80211_set_iface_id(msg, bss) < 0) 871 goto nla_put_failure; 872 873 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) 874 return data.nlmode; 875 msg = NULL; 876 nla_put_failure: 877 nlmsg_free(msg); 878 return NL80211_IFTYPE_UNSPECIFIED; 879 } 880 881 882 static int nl80211_get_macaddr(struct i802_bss *bss) 883 { 884 struct nl_msg *msg; 885 struct wiphy_idx_data data = { 886 .macaddr = bss->addr, 887 }; 888 889 msg = nlmsg_alloc(); 890 if (!msg) 891 return NL80211_IFTYPE_UNSPECIFIED; 892 893 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 894 if (nl80211_set_iface_id(msg, bss) < 0) 895 goto nla_put_failure; 896 897 return send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data); 898 899 nla_put_failure: 900 nlmsg_free(msg); 901 return NL80211_IFTYPE_UNSPECIFIED; 902 } 903 904 905 static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv, 906 struct nl80211_wiphy_data *w) 907 { 908 struct nl_msg *msg; 909 int ret = -1; 910 911 msg = nlmsg_alloc(); 912 if (!msg) 913 return -1; 914 915 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS); 916 917 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx); 918 919 ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL); 920 msg = NULL; 921 if (ret) { 922 wpa_printf(MSG_DEBUG, "nl80211: Register beacons command " 923 "failed: ret=%d (%s)", 924 ret, strerror(-ret)); 925 goto nla_put_failure; 926 } 927 ret = 0; 928 nla_put_failure: 929 nlmsg_free(msg); 930 return ret; 931 } 932 933 934 static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle) 935 { 936 struct nl80211_wiphy_data *w = eloop_ctx; 937 int res; 938 939 wpa_printf(MSG_EXCESSIVE, "nl80211: Beacon event message available"); 940 941 res = nl_recvmsgs(handle, w->nl_cb); 942 if (res < 0) { 943 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d", 944 __func__, res); 945 } 946 } 947 948 949 static int process_beacon_event(struct nl_msg *msg, void *arg) 950 { 951 struct nl80211_wiphy_data *w = arg; 952 struct wpa_driver_nl80211_data *drv; 953 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 954 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 955 union wpa_event_data event; 956 957 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 958 genlmsg_attrlen(gnlh, 0), NULL); 959 960 if (gnlh->cmd != NL80211_CMD_FRAME) { 961 wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)", 962 gnlh->cmd); 963 return NL_SKIP; 964 } 965 966 if (!tb[NL80211_ATTR_FRAME]) 967 return NL_SKIP; 968 969 dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data, 970 wiphy_list) { 971 os_memset(&event, 0, sizeof(event)); 972 event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]); 973 event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]); 974 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 975 } 976 977 return NL_SKIP; 978 } 979 980 981 static struct nl80211_wiphy_data * 982 nl80211_get_wiphy_data_ap(struct i802_bss *bss) 983 { 984 static DEFINE_DL_LIST(nl80211_wiphys); 985 struct nl80211_wiphy_data *w; 986 int wiphy_idx, found = 0; 987 struct i802_bss *tmp_bss; 988 989 if (bss->wiphy_data != NULL) 990 return bss->wiphy_data; 991 992 wiphy_idx = nl80211_get_wiphy_index(bss); 993 994 dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) { 995 if (w->wiphy_idx == wiphy_idx) 996 goto add; 997 } 998 999 /* alloc new one */ 1000 w = os_zalloc(sizeof(*w)); 1001 if (w == NULL) 1002 return NULL; 1003 w->wiphy_idx = wiphy_idx; 1004 dl_list_init(&w->bsss); 1005 dl_list_init(&w->drvs); 1006 1007 w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 1008 if (!w->nl_cb) { 1009 os_free(w); 1010 return NULL; 1011 } 1012 nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL); 1013 nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_beacon_event, 1014 w); 1015 1016 w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb, 1017 "wiphy beacons"); 1018 if (w->nl_beacons == NULL) { 1019 os_free(w); 1020 return NULL; 1021 } 1022 1023 if (nl80211_register_beacons(bss->drv, w)) { 1024 nl_destroy_handles(&w->nl_beacons); 1025 os_free(w); 1026 return NULL; 1027 } 1028 1029 nl80211_register_eloop_read(&w->nl_beacons, nl80211_recv_beacons, w); 1030 1031 dl_list_add(&nl80211_wiphys, &w->list); 1032 1033 add: 1034 /* drv entry for this bss already there? */ 1035 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { 1036 if (tmp_bss->drv == bss->drv) { 1037 found = 1; 1038 break; 1039 } 1040 } 1041 /* if not add it */ 1042 if (!found) 1043 dl_list_add(&w->drvs, &bss->drv->wiphy_list); 1044 1045 dl_list_add(&w->bsss, &bss->wiphy_list); 1046 bss->wiphy_data = w; 1047 return w; 1048 } 1049 1050 1051 static void nl80211_put_wiphy_data_ap(struct i802_bss *bss) 1052 { 1053 struct nl80211_wiphy_data *w = bss->wiphy_data; 1054 struct i802_bss *tmp_bss; 1055 int found = 0; 1056 1057 if (w == NULL) 1058 return; 1059 bss->wiphy_data = NULL; 1060 dl_list_del(&bss->wiphy_list); 1061 1062 /* still any for this drv present? */ 1063 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { 1064 if (tmp_bss->drv == bss->drv) { 1065 found = 1; 1066 break; 1067 } 1068 } 1069 /* if not remove it */ 1070 if (!found) 1071 dl_list_del(&bss->drv->wiphy_list); 1072 1073 if (!dl_list_empty(&w->bsss)) 1074 return; 1075 1076 nl80211_destroy_eloop_handle(&w->nl_beacons); 1077 1078 nl_cb_put(w->nl_cb); 1079 dl_list_del(&w->list); 1080 os_free(w); 1081 } 1082 1083 1084 static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid) 1085 { 1086 struct i802_bss *bss = priv; 1087 struct wpa_driver_nl80211_data *drv = bss->drv; 1088 if (!drv->associated) 1089 return -1; 1090 os_memcpy(bssid, drv->bssid, ETH_ALEN); 1091 return 0; 1092 } 1093 1094 1095 static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid) 1096 { 1097 struct i802_bss *bss = priv; 1098 struct wpa_driver_nl80211_data *drv = bss->drv; 1099 if (!drv->associated) 1100 return -1; 1101 os_memcpy(ssid, drv->ssid, drv->ssid_len); 1102 return drv->ssid_len; 1103 } 1104 1105 1106 static void wpa_driver_nl80211_event_newlink( 1107 struct wpa_driver_nl80211_data *drv, char *ifname) 1108 { 1109 union wpa_event_data event; 1110 1111 if (os_strcmp(drv->first_bss->ifname, ifname) == 0) { 1112 if (if_nametoindex(drv->first_bss->ifname) == 0) { 1113 wpa_printf(MSG_DEBUG, "nl80211: Interface %s does not exist - ignore RTM_NEWLINK", 1114 drv->first_bss->ifname); 1115 return; 1116 } 1117 if (!drv->if_removed) 1118 return; 1119 wpa_printf(MSG_DEBUG, "nl80211: Mark if_removed=0 for %s based on RTM_NEWLINK event", 1120 drv->first_bss->ifname); 1121 drv->if_removed = 0; 1122 } 1123 1124 os_memset(&event, 0, sizeof(event)); 1125 os_strlcpy(event.interface_status.ifname, ifname, 1126 sizeof(event.interface_status.ifname)); 1127 event.interface_status.ievent = EVENT_INTERFACE_ADDED; 1128 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); 1129 } 1130 1131 1132 static void wpa_driver_nl80211_event_dellink( 1133 struct wpa_driver_nl80211_data *drv, char *ifname) 1134 { 1135 union wpa_event_data event; 1136 1137 if (os_strcmp(drv->first_bss->ifname, ifname) == 0) { 1138 if (drv->if_removed) { 1139 wpa_printf(MSG_DEBUG, "nl80211: if_removed already set - ignore RTM_DELLINK event for %s", 1140 ifname); 1141 return; 1142 } 1143 wpa_printf(MSG_DEBUG, "RTM_DELLINK: Interface '%s' removed - mark if_removed=1", 1144 ifname); 1145 drv->if_removed = 1; 1146 } else { 1147 wpa_printf(MSG_DEBUG, "RTM_DELLINK: Interface '%s' removed", 1148 ifname); 1149 } 1150 1151 os_memset(&event, 0, sizeof(event)); 1152 os_strlcpy(event.interface_status.ifname, ifname, 1153 sizeof(event.interface_status.ifname)); 1154 event.interface_status.ievent = EVENT_INTERFACE_REMOVED; 1155 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); 1156 } 1157 1158 1159 static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv, 1160 u8 *buf, size_t len) 1161 { 1162 int attrlen, rta_len; 1163 struct rtattr *attr; 1164 1165 attrlen = len; 1166 attr = (struct rtattr *) buf; 1167 1168 rta_len = RTA_ALIGN(sizeof(struct rtattr)); 1169 while (RTA_OK(attr, attrlen)) { 1170 if (attr->rta_type == IFLA_IFNAME) { 1171 if (os_strcmp(((char *) attr) + rta_len, 1172 drv->first_bss->ifname) == 0) 1173 return 1; 1174 else 1175 break; 1176 } 1177 attr = RTA_NEXT(attr, attrlen); 1178 } 1179 1180 return 0; 1181 } 1182 1183 1184 static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv, 1185 int ifindex, u8 *buf, size_t len) 1186 { 1187 if (drv->ifindex == ifindex) 1188 return 1; 1189 1190 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) { 1191 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed " 1192 "interface"); 1193 wpa_driver_nl80211_finish_drv_init(drv, NULL, 0); 1194 return 1; 1195 } 1196 1197 return 0; 1198 } 1199 1200 1201 static struct wpa_driver_nl80211_data * 1202 nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len) 1203 { 1204 struct wpa_driver_nl80211_data *drv; 1205 dl_list_for_each(drv, &global->interfaces, 1206 struct wpa_driver_nl80211_data, list) { 1207 if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) || 1208 have_ifidx(drv, idx)) 1209 return drv; 1210 } 1211 return NULL; 1212 } 1213 1214 1215 static void wpa_driver_nl80211_event_rtm_newlink(void *ctx, 1216 struct ifinfomsg *ifi, 1217 u8 *buf, size_t len) 1218 { 1219 struct nl80211_global *global = ctx; 1220 struct wpa_driver_nl80211_data *drv; 1221 int attrlen; 1222 struct rtattr *attr; 1223 u32 brid = 0; 1224 char namebuf[IFNAMSIZ]; 1225 char ifname[IFNAMSIZ + 1]; 1226 char extra[100], *pos, *end; 1227 1228 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); 1229 if (!drv) { 1230 wpa_printf(MSG_DEBUG, "nl80211: Ignore RTM_NEWLINK event for foreign ifindex %d", 1231 ifi->ifi_index); 1232 return; 1233 } 1234 1235 extra[0] = '\0'; 1236 pos = extra; 1237 end = pos + sizeof(extra); 1238 ifname[0] = '\0'; 1239 1240 attrlen = len; 1241 attr = (struct rtattr *) buf; 1242 while (RTA_OK(attr, attrlen)) { 1243 switch (attr->rta_type) { 1244 case IFLA_IFNAME: 1245 if (RTA_PAYLOAD(attr) >= IFNAMSIZ) 1246 break; 1247 os_memcpy(ifname, RTA_DATA(attr), RTA_PAYLOAD(attr)); 1248 ifname[RTA_PAYLOAD(attr)] = '\0'; 1249 break; 1250 case IFLA_MASTER: 1251 brid = nla_get_u32((struct nlattr *) attr); 1252 pos += os_snprintf(pos, end - pos, " master=%u", brid); 1253 break; 1254 case IFLA_WIRELESS: 1255 pos += os_snprintf(pos, end - pos, " wext"); 1256 break; 1257 case IFLA_OPERSTATE: 1258 pos += os_snprintf(pos, end - pos, " operstate=%u", 1259 nla_get_u32((struct nlattr *) attr)); 1260 break; 1261 case IFLA_LINKMODE: 1262 pos += os_snprintf(pos, end - pos, " linkmode=%u", 1263 nla_get_u32((struct nlattr *) attr)); 1264 break; 1265 } 1266 attr = RTA_NEXT(attr, attrlen); 1267 } 1268 extra[sizeof(extra) - 1] = '\0'; 1269 1270 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: ifi_index=%d ifname=%s%s ifi_family=%d ifi_flags=0x%x (%s%s%s%s)", 1271 ifi->ifi_index, ifname, extra, ifi->ifi_family, 1272 ifi->ifi_flags, 1273 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "", 1274 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "", 1275 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "", 1276 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : ""); 1277 1278 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) { 1279 if (if_indextoname(ifi->ifi_index, namebuf) && 1280 linux_iface_up(drv->global->ioctl_sock, 1281 drv->first_bss->ifname) > 0) { 1282 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " 1283 "event since interface %s is up", namebuf); 1284 return; 1285 } 1286 wpa_printf(MSG_DEBUG, "nl80211: Interface down"); 1287 if (drv->ignore_if_down_event) { 1288 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " 1289 "event generated by mode change"); 1290 drv->ignore_if_down_event = 0; 1291 } else { 1292 drv->if_disabled = 1; 1293 wpa_supplicant_event(drv->ctx, 1294 EVENT_INTERFACE_DISABLED, NULL); 1295 1296 /* 1297 * Try to get drv again, since it may be removed as 1298 * part of the EVENT_INTERFACE_DISABLED handling for 1299 * dynamic interfaces 1300 */ 1301 drv = nl80211_find_drv(global, ifi->ifi_index, 1302 buf, len); 1303 if (!drv) 1304 return; 1305 } 1306 } 1307 1308 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) { 1309 if (if_indextoname(ifi->ifi_index, namebuf) && 1310 linux_iface_up(drv->global->ioctl_sock, 1311 drv->first_bss->ifname) == 0) { 1312 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1313 "event since interface %s is down", 1314 namebuf); 1315 } else if (if_nametoindex(drv->first_bss->ifname) == 0) { 1316 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1317 "event since interface %s does not exist", 1318 drv->first_bss->ifname); 1319 } else if (drv->if_removed) { 1320 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1321 "event since interface %s is marked " 1322 "removed", drv->first_bss->ifname); 1323 } else { 1324 struct i802_bss *bss; 1325 u8 addr[ETH_ALEN]; 1326 1327 /* Re-read MAC address as it may have changed */ 1328 bss = get_bss_ifindex(drv, ifi->ifi_index); 1329 if (bss && 1330 linux_get_ifhwaddr(drv->global->ioctl_sock, 1331 bss->ifname, addr) < 0) { 1332 wpa_printf(MSG_DEBUG, 1333 "nl80211: %s: failed to re-read MAC address", 1334 bss->ifname); 1335 } else if (bss && 1336 os_memcmp(addr, bss->addr, ETH_ALEN) != 0) { 1337 wpa_printf(MSG_DEBUG, 1338 "nl80211: Own MAC address on ifindex %d (%s) changed from " 1339 MACSTR " to " MACSTR, 1340 ifi->ifi_index, bss->ifname, 1341 MAC2STR(bss->addr), 1342 MAC2STR(addr)); 1343 os_memcpy(bss->addr, addr, ETH_ALEN); 1344 } 1345 1346 wpa_printf(MSG_DEBUG, "nl80211: Interface up"); 1347 drv->if_disabled = 0; 1348 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED, 1349 NULL); 1350 } 1351 } 1352 1353 /* 1354 * Some drivers send the association event before the operup event--in 1355 * this case, lifting operstate in wpa_driver_nl80211_set_operstate() 1356 * fails. This will hit us when wpa_supplicant does not need to do 1357 * IEEE 802.1X authentication 1358 */ 1359 if (drv->operstate == 1 && 1360 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP && 1361 !(ifi->ifi_flags & IFF_RUNNING)) { 1362 wpa_printf(MSG_DEBUG, "nl80211: Set IF_OPER_UP again based on ifi_flags and expected operstate"); 1363 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 1364 -1, IF_OPER_UP); 1365 } 1366 1367 if (ifname[0]) 1368 wpa_driver_nl80211_event_newlink(drv, ifname); 1369 1370 if (ifi->ifi_family == AF_BRIDGE && brid) { 1371 /* device has been added to bridge */ 1372 if_indextoname(brid, namebuf); 1373 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s", 1374 brid, namebuf); 1375 add_ifidx(drv, brid); 1376 } 1377 } 1378 1379 1380 static void wpa_driver_nl80211_event_rtm_dellink(void *ctx, 1381 struct ifinfomsg *ifi, 1382 u8 *buf, size_t len) 1383 { 1384 struct nl80211_global *global = ctx; 1385 struct wpa_driver_nl80211_data *drv; 1386 int attrlen; 1387 struct rtattr *attr; 1388 u32 brid = 0; 1389 char ifname[IFNAMSIZ + 1]; 1390 char extra[100], *pos, *end; 1391 1392 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); 1393 if (!drv) { 1394 wpa_printf(MSG_DEBUG, "nl80211: Ignore RTM_DELLINK event for foreign ifindex %d", 1395 ifi->ifi_index); 1396 return; 1397 } 1398 1399 extra[0] = '\0'; 1400 pos = extra; 1401 end = pos + sizeof(extra); 1402 ifname[0] = '\0'; 1403 1404 attrlen = len; 1405 attr = (struct rtattr *) buf; 1406 while (RTA_OK(attr, attrlen)) { 1407 switch (attr->rta_type) { 1408 case IFLA_IFNAME: 1409 if (RTA_PAYLOAD(attr) >= IFNAMSIZ) 1410 break; 1411 os_memcpy(ifname, RTA_DATA(attr), RTA_PAYLOAD(attr)); 1412 ifname[RTA_PAYLOAD(attr)] = '\0'; 1413 break; 1414 case IFLA_MASTER: 1415 brid = nla_get_u32((struct nlattr *) attr); 1416 pos += os_snprintf(pos, end - pos, " master=%u", brid); 1417 break; 1418 case IFLA_OPERSTATE: 1419 pos += os_snprintf(pos, end - pos, " operstate=%u", 1420 nla_get_u32((struct nlattr *) attr)); 1421 break; 1422 case IFLA_LINKMODE: 1423 pos += os_snprintf(pos, end - pos, " linkmode=%u", 1424 nla_get_u32((struct nlattr *) attr)); 1425 break; 1426 } 1427 attr = RTA_NEXT(attr, attrlen); 1428 } 1429 extra[sizeof(extra) - 1] = '\0'; 1430 1431 wpa_printf(MSG_DEBUG, "RTM_DELLINK: ifi_index=%d ifname=%s%s ifi_family=%d ifi_flags=0x%x (%s%s%s%s)", 1432 ifi->ifi_index, ifname, extra, ifi->ifi_family, 1433 ifi->ifi_flags, 1434 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "", 1435 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "", 1436 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "", 1437 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : ""); 1438 1439 if (ifname[0] && (ifi->ifi_family != AF_BRIDGE || !brid)) 1440 wpa_driver_nl80211_event_dellink(drv, ifname); 1441 1442 if (ifi->ifi_family == AF_BRIDGE && brid) { 1443 /* device has been removed from bridge */ 1444 char namebuf[IFNAMSIZ]; 1445 if_indextoname(brid, namebuf); 1446 wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge " 1447 "%s", brid, namebuf); 1448 del_ifidx(drv, brid); 1449 } 1450 } 1451 1452 1453 static void mlme_event_auth(struct wpa_driver_nl80211_data *drv, 1454 const u8 *frame, size_t len) 1455 { 1456 const struct ieee80211_mgmt *mgmt; 1457 union wpa_event_data event; 1458 1459 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME) && 1460 drv->force_connect_cmd) { 1461 /* 1462 * Avoid reporting two association events that would confuse 1463 * the core code. 1464 */ 1465 wpa_printf(MSG_DEBUG, 1466 "nl80211: Ignore auth event when using driver SME"); 1467 return; 1468 } 1469 1470 wpa_printf(MSG_DEBUG, "nl80211: Authenticate event"); 1471 mgmt = (const struct ieee80211_mgmt *) frame; 1472 if (len < 24 + sizeof(mgmt->u.auth)) { 1473 wpa_printf(MSG_DEBUG, "nl80211: Too short association event " 1474 "frame"); 1475 return; 1476 } 1477 1478 os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN); 1479 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 1480 os_memset(&event, 0, sizeof(event)); 1481 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN); 1482 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg); 1483 event.auth.auth_transaction = 1484 le_to_host16(mgmt->u.auth.auth_transaction); 1485 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code); 1486 if (len > 24 + sizeof(mgmt->u.auth)) { 1487 event.auth.ies = mgmt->u.auth.variable; 1488 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth); 1489 } 1490 1491 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event); 1492 } 1493 1494 1495 static unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv) 1496 { 1497 struct nl_msg *msg; 1498 int ret; 1499 struct nl80211_bss_info_arg arg; 1500 1501 os_memset(&arg, 0, sizeof(arg)); 1502 msg = nlmsg_alloc(); 1503 if (!msg) 1504 goto nla_put_failure; 1505 1506 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 1507 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 1508 1509 arg.drv = drv; 1510 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 1511 msg = NULL; 1512 if (ret == 0) { 1513 unsigned int freq = drv->nlmode == NL80211_IFTYPE_ADHOC ? 1514 arg.ibss_freq : arg.assoc_freq; 1515 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the " 1516 "associated BSS from scan results: %u MHz", freq); 1517 if (freq) 1518 drv->assoc_freq = freq; 1519 return drv->assoc_freq; 1520 } 1521 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 1522 "(%s)", ret, strerror(-ret)); 1523 nla_put_failure: 1524 nlmsg_free(msg); 1525 return drv->assoc_freq; 1526 } 1527 1528 1529 static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv, 1530 const u8 *frame, size_t len) 1531 { 1532 const struct ieee80211_mgmt *mgmt; 1533 union wpa_event_data event; 1534 u16 status; 1535 1536 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME) && 1537 drv->force_connect_cmd) { 1538 /* 1539 * Avoid reporting two association events that would confuse 1540 * the core code. 1541 */ 1542 wpa_printf(MSG_DEBUG, 1543 "nl80211: Ignore assoc event when using driver SME"); 1544 return; 1545 } 1546 1547 wpa_printf(MSG_DEBUG, "nl80211: Associate event"); 1548 mgmt = (const struct ieee80211_mgmt *) frame; 1549 if (len < 24 + sizeof(mgmt->u.assoc_resp)) { 1550 wpa_printf(MSG_DEBUG, "nl80211: Too short association event " 1551 "frame"); 1552 return; 1553 } 1554 1555 status = le_to_host16(mgmt->u.assoc_resp.status_code); 1556 if (status != WLAN_STATUS_SUCCESS) { 1557 os_memset(&event, 0, sizeof(event)); 1558 event.assoc_reject.bssid = mgmt->bssid; 1559 if (len > 24 + sizeof(mgmt->u.assoc_resp)) { 1560 event.assoc_reject.resp_ies = 1561 (u8 *) mgmt->u.assoc_resp.variable; 1562 event.assoc_reject.resp_ies_len = 1563 len - 24 - sizeof(mgmt->u.assoc_resp); 1564 } 1565 event.assoc_reject.status_code = status; 1566 1567 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); 1568 return; 1569 } 1570 1571 drv->associated = 1; 1572 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN); 1573 os_memcpy(drv->prev_bssid, mgmt->sa, ETH_ALEN); 1574 1575 os_memset(&event, 0, sizeof(event)); 1576 if (len > 24 + sizeof(mgmt->u.assoc_resp)) { 1577 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable; 1578 event.assoc_info.resp_ies_len = 1579 len - 24 - sizeof(mgmt->u.assoc_resp); 1580 } 1581 1582 event.assoc_info.freq = drv->assoc_freq; 1583 1584 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); 1585 } 1586 1587 1588 static void mlme_event_connect(struct wpa_driver_nl80211_data *drv, 1589 enum nl80211_commands cmd, struct nlattr *status, 1590 struct nlattr *addr, struct nlattr *req_ie, 1591 struct nlattr *resp_ie) 1592 { 1593 union wpa_event_data event; 1594 u16 status_code; 1595 1596 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 1597 /* 1598 * Avoid reporting two association events that would confuse 1599 * the core code. 1600 */ 1601 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) " 1602 "when using userspace SME", cmd); 1603 return; 1604 } 1605 1606 status_code = status ? nla_get_u16(status) : WLAN_STATUS_SUCCESS; 1607 1608 if (cmd == NL80211_CMD_CONNECT) { 1609 wpa_printf(MSG_DEBUG, 1610 "nl80211: Connect event (status=%u ignore_next_local_disconnect=%d)", 1611 status_code, drv->ignore_next_local_disconnect); 1612 } else if (cmd == NL80211_CMD_ROAM) { 1613 wpa_printf(MSG_DEBUG, "nl80211: Roam event"); 1614 } 1615 1616 os_memset(&event, 0, sizeof(event)); 1617 if (cmd == NL80211_CMD_CONNECT && status_code != WLAN_STATUS_SUCCESS) { 1618 if (addr) 1619 event.assoc_reject.bssid = nla_data(addr); 1620 if (drv->ignore_next_local_disconnect) { 1621 drv->ignore_next_local_disconnect = 0; 1622 if (!event.assoc_reject.bssid || 1623 (os_memcmp(event.assoc_reject.bssid, 1624 drv->auth_attempt_bssid, 1625 ETH_ALEN) != 0)) { 1626 /* 1627 * Ignore the event that came without a BSSID or 1628 * for the old connection since this is likely 1629 * not relevant to the new Connect command. 1630 */ 1631 wpa_printf(MSG_DEBUG, 1632 "nl80211: Ignore connection failure event triggered during reassociation"); 1633 return; 1634 } 1635 } 1636 if (resp_ie) { 1637 event.assoc_reject.resp_ies = nla_data(resp_ie); 1638 event.assoc_reject.resp_ies_len = nla_len(resp_ie); 1639 } 1640 event.assoc_reject.status_code = status_code; 1641 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); 1642 return; 1643 } 1644 1645 drv->associated = 1; 1646 if (addr) { 1647 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN); 1648 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); 1649 } 1650 1651 if (req_ie) { 1652 event.assoc_info.req_ies = nla_data(req_ie); 1653 event.assoc_info.req_ies_len = nla_len(req_ie); 1654 } 1655 if (resp_ie) { 1656 event.assoc_info.resp_ies = nla_data(resp_ie); 1657 event.assoc_info.resp_ies_len = nla_len(resp_ie); 1658 } 1659 1660 event.assoc_info.freq = nl80211_get_assoc_freq(drv); 1661 1662 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); 1663 } 1664 1665 1666 static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv, 1667 struct nlattr *reason, struct nlattr *addr, 1668 struct nlattr *by_ap) 1669 { 1670 union wpa_event_data data; 1671 unsigned int locally_generated = by_ap == NULL; 1672 1673 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 1674 /* 1675 * Avoid reporting two disassociation events that could 1676 * confuse the core code. 1677 */ 1678 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " 1679 "event when using userspace SME"); 1680 return; 1681 } 1682 1683 if (drv->ignore_next_local_disconnect) { 1684 drv->ignore_next_local_disconnect = 0; 1685 if (locally_generated) { 1686 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " 1687 "event triggered during reassociation"); 1688 return; 1689 } 1690 wpa_printf(MSG_WARNING, "nl80211: Was expecting local " 1691 "disconnect but got another disconnect " 1692 "event first"); 1693 } 1694 1695 wpa_printf(MSG_DEBUG, "nl80211: Disconnect event"); 1696 nl80211_mark_disconnected(drv); 1697 os_memset(&data, 0, sizeof(data)); 1698 if (reason) 1699 data.deauth_info.reason_code = nla_get_u16(reason); 1700 data.deauth_info.locally_generated = by_ap == NULL; 1701 wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, &data); 1702 } 1703 1704 1705 static int calculate_chan_offset(int width, int freq, int cf1, int cf2) 1706 { 1707 int freq1 = 0; 1708 1709 switch (convert2width(width)) { 1710 case CHAN_WIDTH_20_NOHT: 1711 case CHAN_WIDTH_20: 1712 return 0; 1713 case CHAN_WIDTH_40: 1714 freq1 = cf1 - 10; 1715 break; 1716 case CHAN_WIDTH_80: 1717 freq1 = cf1 - 30; 1718 break; 1719 case CHAN_WIDTH_160: 1720 freq1 = cf1 - 70; 1721 break; 1722 case CHAN_WIDTH_UNKNOWN: 1723 case CHAN_WIDTH_80P80: 1724 /* FIXME: implement this */ 1725 return 0; 1726 } 1727 1728 return (abs(freq - freq1) / 20) % 2 == 0 ? 1 : -1; 1729 } 1730 1731 1732 static void mlme_event_ch_switch(struct wpa_driver_nl80211_data *drv, 1733 struct nlattr *ifindex, struct nlattr *freq, 1734 struct nlattr *type, struct nlattr *bw, 1735 struct nlattr *cf1, struct nlattr *cf2) 1736 { 1737 struct i802_bss *bss; 1738 union wpa_event_data data; 1739 int ht_enabled = 1; 1740 int chan_offset = 0; 1741 int ifidx; 1742 1743 wpa_printf(MSG_DEBUG, "nl80211: Channel switch event"); 1744 1745 if (!freq) 1746 return; 1747 1748 ifidx = nla_get_u32(ifindex); 1749 bss = get_bss_ifindex(drv, ifidx); 1750 if (bss == NULL) { 1751 wpa_printf(MSG_WARNING, "nl80211: Unknown ifindex (%d) for channel switch, ignoring", 1752 ifidx); 1753 return; 1754 } 1755 1756 if (type) { 1757 switch (nla_get_u32(type)) { 1758 case NL80211_CHAN_NO_HT: 1759 ht_enabled = 0; 1760 break; 1761 case NL80211_CHAN_HT20: 1762 break; 1763 case NL80211_CHAN_HT40PLUS: 1764 chan_offset = 1; 1765 break; 1766 case NL80211_CHAN_HT40MINUS: 1767 chan_offset = -1; 1768 break; 1769 } 1770 } else if (bw && cf1) { 1771 /* This can happen for example with VHT80 ch switch */ 1772 chan_offset = calculate_chan_offset(nla_get_u32(bw), 1773 nla_get_u32(freq), 1774 nla_get_u32(cf1), 1775 cf2 ? nla_get_u32(cf2) : 0); 1776 } else { 1777 wpa_printf(MSG_WARNING, "nl80211: Unknown secondary channel information - following channel definition calculations may fail"); 1778 } 1779 1780 os_memset(&data, 0, sizeof(data)); 1781 data.ch_switch.freq = nla_get_u32(freq); 1782 data.ch_switch.ht_enabled = ht_enabled; 1783 data.ch_switch.ch_offset = chan_offset; 1784 if (bw) 1785 data.ch_switch.ch_width = convert2width(nla_get_u32(bw)); 1786 if (cf1) 1787 data.ch_switch.cf1 = nla_get_u32(cf1); 1788 if (cf2) 1789 data.ch_switch.cf2 = nla_get_u32(cf2); 1790 1791 bss->freq = data.ch_switch.freq; 1792 1793 wpa_supplicant_event(bss->ctx, EVENT_CH_SWITCH, &data); 1794 } 1795 1796 1797 static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv, 1798 enum nl80211_commands cmd, struct nlattr *addr) 1799 { 1800 union wpa_event_data event; 1801 enum wpa_event_type ev; 1802 1803 if (nla_len(addr) != ETH_ALEN) 1804 return; 1805 1806 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR, 1807 cmd, MAC2STR((u8 *) nla_data(addr))); 1808 1809 if (cmd == NL80211_CMD_AUTHENTICATE) 1810 ev = EVENT_AUTH_TIMED_OUT; 1811 else if (cmd == NL80211_CMD_ASSOCIATE) 1812 ev = EVENT_ASSOC_TIMED_OUT; 1813 else 1814 return; 1815 1816 os_memset(&event, 0, sizeof(event)); 1817 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN); 1818 wpa_supplicant_event(drv->ctx, ev, &event); 1819 } 1820 1821 1822 static void mlme_event_mgmt(struct i802_bss *bss, 1823 struct nlattr *freq, struct nlattr *sig, 1824 const u8 *frame, size_t len) 1825 { 1826 struct wpa_driver_nl80211_data *drv = bss->drv; 1827 const struct ieee80211_mgmt *mgmt; 1828 union wpa_event_data event; 1829 u16 fc, stype; 1830 int ssi_signal = 0; 1831 int rx_freq = 0; 1832 1833 wpa_printf(MSG_MSGDUMP, "nl80211: Frame event"); 1834 mgmt = (const struct ieee80211_mgmt *) frame; 1835 if (len < 24) { 1836 wpa_printf(MSG_DEBUG, "nl80211: Too short management frame"); 1837 return; 1838 } 1839 1840 fc = le_to_host16(mgmt->frame_control); 1841 stype = WLAN_FC_GET_STYPE(fc); 1842 1843 if (sig) 1844 ssi_signal = (s32) nla_get_u32(sig); 1845 1846 os_memset(&event, 0, sizeof(event)); 1847 if (freq) { 1848 event.rx_mgmt.freq = nla_get_u32(freq); 1849 rx_freq = drv->last_mgmt_freq = event.rx_mgmt.freq; 1850 } 1851 wpa_printf(MSG_DEBUG, 1852 "nl80211: RX frame sa=" MACSTR 1853 " freq=%d ssi_signal=%d stype=%u (%s) len=%u", 1854 MAC2STR(mgmt->sa), rx_freq, ssi_signal, stype, fc2str(fc), 1855 (unsigned int) len); 1856 event.rx_mgmt.frame = frame; 1857 event.rx_mgmt.frame_len = len; 1858 event.rx_mgmt.ssi_signal = ssi_signal; 1859 event.rx_mgmt.drv_priv = bss; 1860 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 1861 } 1862 1863 1864 static void mlme_event_mgmt_tx_status(struct wpa_driver_nl80211_data *drv, 1865 struct nlattr *cookie, const u8 *frame, 1866 size_t len, struct nlattr *ack) 1867 { 1868 union wpa_event_data event; 1869 const struct ieee80211_hdr *hdr; 1870 u16 fc; 1871 1872 wpa_printf(MSG_DEBUG, "nl80211: Frame TX status event"); 1873 if (!is_ap_interface(drv->nlmode)) { 1874 u64 cookie_val; 1875 1876 if (!cookie) 1877 return; 1878 1879 cookie_val = nla_get_u64(cookie); 1880 wpa_printf(MSG_DEBUG, "nl80211: Action TX status:" 1881 " cookie=0%llx%s (ack=%d)", 1882 (long long unsigned int) cookie_val, 1883 cookie_val == drv->send_action_cookie ? 1884 " (match)" : " (unknown)", ack != NULL); 1885 if (cookie_val != drv->send_action_cookie) 1886 return; 1887 } 1888 1889 hdr = (const struct ieee80211_hdr *) frame; 1890 fc = le_to_host16(hdr->frame_control); 1891 1892 os_memset(&event, 0, sizeof(event)); 1893 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 1894 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 1895 event.tx_status.dst = hdr->addr1; 1896 event.tx_status.data = frame; 1897 event.tx_status.data_len = len; 1898 event.tx_status.ack = ack != NULL; 1899 wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event); 1900 } 1901 1902 1903 static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv, 1904 enum wpa_event_type type, 1905 const u8 *frame, size_t len) 1906 { 1907 const struct ieee80211_mgmt *mgmt; 1908 union wpa_event_data event; 1909 const u8 *bssid = NULL; 1910 u16 reason_code = 0; 1911 1912 if (type == EVENT_DEAUTH) 1913 wpa_printf(MSG_DEBUG, "nl80211: Deauthenticate event"); 1914 else 1915 wpa_printf(MSG_DEBUG, "nl80211: Disassociate event"); 1916 1917 mgmt = (const struct ieee80211_mgmt *) frame; 1918 if (len >= 24) { 1919 bssid = mgmt->bssid; 1920 1921 if ((drv->capa.flags & WPA_DRIVER_FLAGS_SME) && 1922 !drv->associated && 1923 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0 && 1924 os_memcmp(bssid, drv->auth_attempt_bssid, ETH_ALEN) != 0 && 1925 os_memcmp(bssid, drv->prev_bssid, ETH_ALEN) == 0) { 1926 /* 1927 * Avoid issues with some roaming cases where 1928 * disconnection event for the old AP may show up after 1929 * we have started connection with the new AP. 1930 */ 1931 wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth/disassoc event from old AP " MACSTR " when already authenticating with " MACSTR, 1932 MAC2STR(bssid), 1933 MAC2STR(drv->auth_attempt_bssid)); 1934 return; 1935 } 1936 1937 if (drv->associated != 0 && 1938 os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 && 1939 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) { 1940 /* 1941 * We have presumably received this deauth as a 1942 * response to a clear_state_mismatch() outgoing 1943 * deauth. Don't let it take us offline! 1944 */ 1945 wpa_printf(MSG_DEBUG, "nl80211: Deauth received " 1946 "from Unknown BSSID " MACSTR " -- ignoring", 1947 MAC2STR(bssid)); 1948 return; 1949 } 1950 } 1951 1952 nl80211_mark_disconnected(drv); 1953 os_memset(&event, 0, sizeof(event)); 1954 1955 /* Note: Same offset for Reason Code in both frame subtypes */ 1956 if (len >= 24 + sizeof(mgmt->u.deauth)) 1957 reason_code = le_to_host16(mgmt->u.deauth.reason_code); 1958 1959 if (type == EVENT_DISASSOC) { 1960 event.disassoc_info.locally_generated = 1961 !os_memcmp(mgmt->sa, drv->first_bss->addr, ETH_ALEN); 1962 event.disassoc_info.addr = bssid; 1963 event.disassoc_info.reason_code = reason_code; 1964 if (frame + len > mgmt->u.disassoc.variable) { 1965 event.disassoc_info.ie = mgmt->u.disassoc.variable; 1966 event.disassoc_info.ie_len = frame + len - 1967 mgmt->u.disassoc.variable; 1968 } 1969 } else { 1970 if (drv->ignore_deauth_event) { 1971 wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth event due to previous forced deauth-during-auth"); 1972 drv->ignore_deauth_event = 0; 1973 return; 1974 } 1975 event.deauth_info.locally_generated = 1976 !os_memcmp(mgmt->sa, drv->first_bss->addr, ETH_ALEN); 1977 if (drv->ignore_next_local_deauth) { 1978 drv->ignore_next_local_deauth = 0; 1979 if (event.deauth_info.locally_generated) { 1980 wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth event triggered due to own deauth request"); 1981 return; 1982 } 1983 wpa_printf(MSG_WARNING, "nl80211: Was expecting local deauth but got another disconnect event first"); 1984 } 1985 event.deauth_info.addr = bssid; 1986 event.deauth_info.reason_code = reason_code; 1987 if (frame + len > mgmt->u.deauth.variable) { 1988 event.deauth_info.ie = mgmt->u.deauth.variable; 1989 event.deauth_info.ie_len = frame + len - 1990 mgmt->u.deauth.variable; 1991 } 1992 } 1993 1994 wpa_supplicant_event(drv->ctx, type, &event); 1995 } 1996 1997 1998 static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv, 1999 enum wpa_event_type type, 2000 const u8 *frame, size_t len) 2001 { 2002 const struct ieee80211_mgmt *mgmt; 2003 union wpa_event_data event; 2004 u16 reason_code = 0; 2005 2006 if (type == EVENT_UNPROT_DEAUTH) 2007 wpa_printf(MSG_DEBUG, "nl80211: Unprot Deauthenticate event"); 2008 else 2009 wpa_printf(MSG_DEBUG, "nl80211: Unprot Disassociate event"); 2010 2011 if (len < 24) 2012 return; 2013 2014 mgmt = (const struct ieee80211_mgmt *) frame; 2015 2016 os_memset(&event, 0, sizeof(event)); 2017 /* Note: Same offset for Reason Code in both frame subtypes */ 2018 if (len >= 24 + sizeof(mgmt->u.deauth)) 2019 reason_code = le_to_host16(mgmt->u.deauth.reason_code); 2020 2021 if (type == EVENT_UNPROT_DISASSOC) { 2022 event.unprot_disassoc.sa = mgmt->sa; 2023 event.unprot_disassoc.da = mgmt->da; 2024 event.unprot_disassoc.reason_code = reason_code; 2025 } else { 2026 event.unprot_deauth.sa = mgmt->sa; 2027 event.unprot_deauth.da = mgmt->da; 2028 event.unprot_deauth.reason_code = reason_code; 2029 } 2030 2031 wpa_supplicant_event(drv->ctx, type, &event); 2032 } 2033 2034 2035 static void mlme_event(struct i802_bss *bss, 2036 enum nl80211_commands cmd, struct nlattr *frame, 2037 struct nlattr *addr, struct nlattr *timed_out, 2038 struct nlattr *freq, struct nlattr *ack, 2039 struct nlattr *cookie, struct nlattr *sig) 2040 { 2041 struct wpa_driver_nl80211_data *drv = bss->drv; 2042 const u8 *data; 2043 size_t len; 2044 2045 if (timed_out && addr) { 2046 mlme_timeout_event(drv, cmd, addr); 2047 return; 2048 } 2049 2050 if (frame == NULL) { 2051 wpa_printf(MSG_DEBUG, 2052 "nl80211: MLME event %d (%s) without frame data", 2053 cmd, nl80211_command_to_string(cmd)); 2054 return; 2055 } 2056 2057 data = nla_data(frame); 2058 len = nla_len(frame); 2059 if (len < 4 + 2 * ETH_ALEN) { 2060 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" 2061 MACSTR ") - too short", 2062 cmd, nl80211_command_to_string(cmd), bss->ifname, 2063 MAC2STR(bss->addr)); 2064 return; 2065 } 2066 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" MACSTR 2067 ") A1=" MACSTR " A2=" MACSTR, cmd, 2068 nl80211_command_to_string(cmd), bss->ifname, 2069 MAC2STR(bss->addr), MAC2STR(data + 4), 2070 MAC2STR(data + 4 + ETH_ALEN)); 2071 if (cmd != NL80211_CMD_FRAME_TX_STATUS && !(data[4] & 0x01) && 2072 os_memcmp(bss->addr, data + 4, ETH_ALEN) != 0 && 2073 os_memcmp(bss->addr, data + 4 + ETH_ALEN, ETH_ALEN) != 0) { 2074 wpa_printf(MSG_MSGDUMP, "nl80211: %s: Ignore MLME frame event " 2075 "for foreign address", bss->ifname); 2076 return; 2077 } 2078 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame", 2079 nla_data(frame), nla_len(frame)); 2080 2081 switch (cmd) { 2082 case NL80211_CMD_AUTHENTICATE: 2083 mlme_event_auth(drv, nla_data(frame), nla_len(frame)); 2084 break; 2085 case NL80211_CMD_ASSOCIATE: 2086 mlme_event_assoc(drv, nla_data(frame), nla_len(frame)); 2087 break; 2088 case NL80211_CMD_DEAUTHENTICATE: 2089 mlme_event_deauth_disassoc(drv, EVENT_DEAUTH, 2090 nla_data(frame), nla_len(frame)); 2091 break; 2092 case NL80211_CMD_DISASSOCIATE: 2093 mlme_event_deauth_disassoc(drv, EVENT_DISASSOC, 2094 nla_data(frame), nla_len(frame)); 2095 break; 2096 case NL80211_CMD_FRAME: 2097 mlme_event_mgmt(bss, freq, sig, nla_data(frame), 2098 nla_len(frame)); 2099 break; 2100 case NL80211_CMD_FRAME_TX_STATUS: 2101 mlme_event_mgmt_tx_status(drv, cookie, nla_data(frame), 2102 nla_len(frame), ack); 2103 break; 2104 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 2105 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH, 2106 nla_data(frame), nla_len(frame)); 2107 break; 2108 case NL80211_CMD_UNPROT_DISASSOCIATE: 2109 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC, 2110 nla_data(frame), nla_len(frame)); 2111 break; 2112 default: 2113 break; 2114 } 2115 } 2116 2117 2118 static void mlme_event_michael_mic_failure(struct i802_bss *bss, 2119 struct nlattr *tb[]) 2120 { 2121 union wpa_event_data data; 2122 2123 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure"); 2124 os_memset(&data, 0, sizeof(data)); 2125 if (tb[NL80211_ATTR_MAC]) { 2126 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address", 2127 nla_data(tb[NL80211_ATTR_MAC]), 2128 nla_len(tb[NL80211_ATTR_MAC])); 2129 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]); 2130 } 2131 if (tb[NL80211_ATTR_KEY_SEQ]) { 2132 wpa_hexdump(MSG_DEBUG, "nl80211: TSC", 2133 nla_data(tb[NL80211_ATTR_KEY_SEQ]), 2134 nla_len(tb[NL80211_ATTR_KEY_SEQ])); 2135 } 2136 if (tb[NL80211_ATTR_KEY_TYPE]) { 2137 enum nl80211_key_type key_type = 2138 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]); 2139 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type); 2140 if (key_type == NL80211_KEYTYPE_PAIRWISE) 2141 data.michael_mic_failure.unicast = 1; 2142 } else 2143 data.michael_mic_failure.unicast = 1; 2144 2145 if (tb[NL80211_ATTR_KEY_IDX]) { 2146 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]); 2147 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id); 2148 } 2149 2150 wpa_supplicant_event(bss->ctx, EVENT_MICHAEL_MIC_FAILURE, &data); 2151 } 2152 2153 2154 static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv, 2155 struct nlattr *tb[]) 2156 { 2157 unsigned int freq; 2158 2159 if (tb[NL80211_ATTR_MAC] == NULL) { 2160 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined " 2161 "event"); 2162 return; 2163 } 2164 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2165 2166 drv->associated = 1; 2167 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined", 2168 MAC2STR(drv->bssid)); 2169 2170 freq = nl80211_get_assoc_freq(drv); 2171 if (freq) { 2172 wpa_printf(MSG_DEBUG, "nl80211: IBSS on frequency %u MHz", 2173 freq); 2174 drv->first_bss->freq = freq; 2175 } 2176 2177 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL); 2178 } 2179 2180 2181 static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv, 2182 int cancel_event, struct nlattr *tb[]) 2183 { 2184 unsigned int freq, chan_type, duration; 2185 union wpa_event_data data; 2186 u64 cookie; 2187 2188 if (tb[NL80211_ATTR_WIPHY_FREQ]) 2189 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); 2190 else 2191 freq = 0; 2192 2193 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) 2194 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); 2195 else 2196 chan_type = 0; 2197 2198 if (tb[NL80211_ATTR_DURATION]) 2199 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]); 2200 else 2201 duration = 0; 2202 2203 if (tb[NL80211_ATTR_COOKIE]) 2204 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 2205 else 2206 cookie = 0; 2207 2208 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d " 2209 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))", 2210 cancel_event, freq, chan_type, duration, 2211 (long long unsigned int) cookie, 2212 cookie == drv->remain_on_chan_cookie ? "match" : "unknown"); 2213 2214 if (cookie != drv->remain_on_chan_cookie) 2215 return; /* not for us */ 2216 2217 if (cancel_event) 2218 drv->pending_remain_on_chan = 0; 2219 2220 os_memset(&data, 0, sizeof(data)); 2221 data.remain_on_channel.freq = freq; 2222 data.remain_on_channel.duration = duration; 2223 wpa_supplicant_event(drv->ctx, cancel_event ? 2224 EVENT_CANCEL_REMAIN_ON_CHANNEL : 2225 EVENT_REMAIN_ON_CHANNEL, &data); 2226 } 2227 2228 2229 static void mlme_event_ft_event(struct wpa_driver_nl80211_data *drv, 2230 struct nlattr *tb[]) 2231 { 2232 union wpa_event_data data; 2233 2234 os_memset(&data, 0, sizeof(data)); 2235 2236 if (tb[NL80211_ATTR_IE]) { 2237 data.ft_ies.ies = nla_data(tb[NL80211_ATTR_IE]); 2238 data.ft_ies.ies_len = nla_len(tb[NL80211_ATTR_IE]); 2239 } 2240 2241 if (tb[NL80211_ATTR_IE_RIC]) { 2242 data.ft_ies.ric_ies = nla_data(tb[NL80211_ATTR_IE_RIC]); 2243 data.ft_ies.ric_ies_len = nla_len(tb[NL80211_ATTR_IE_RIC]); 2244 } 2245 2246 if (tb[NL80211_ATTR_MAC]) 2247 os_memcpy(data.ft_ies.target_ap, 2248 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2249 2250 wpa_printf(MSG_DEBUG, "nl80211: FT event target_ap " MACSTR, 2251 MAC2STR(data.ft_ies.target_ap)); 2252 2253 wpa_supplicant_event(drv->ctx, EVENT_FT_RESPONSE, &data); 2254 } 2255 2256 2257 static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted, 2258 struct nlattr *tb[]) 2259 { 2260 union wpa_event_data event; 2261 struct nlattr *nl; 2262 int rem; 2263 struct scan_info *info; 2264 #define MAX_REPORT_FREQS 50 2265 int freqs[MAX_REPORT_FREQS]; 2266 int num_freqs = 0; 2267 2268 if (drv->scan_for_auth) { 2269 drv->scan_for_auth = 0; 2270 wpa_printf(MSG_DEBUG, "nl80211: Scan results for missing " 2271 "cfg80211 BSS entry"); 2272 wpa_driver_nl80211_authenticate_retry(drv); 2273 return; 2274 } 2275 2276 os_memset(&event, 0, sizeof(event)); 2277 info = &event.scan_info; 2278 info->aborted = aborted; 2279 2280 if (tb[NL80211_ATTR_SCAN_SSIDS]) { 2281 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) { 2282 struct wpa_driver_scan_ssid *s = 2283 &info->ssids[info->num_ssids]; 2284 s->ssid = nla_data(nl); 2285 s->ssid_len = nla_len(nl); 2286 wpa_printf(MSG_DEBUG, "nl80211: Scan probed for SSID '%s'", 2287 wpa_ssid_txt(s->ssid, s->ssid_len)); 2288 info->num_ssids++; 2289 if (info->num_ssids == WPAS_MAX_SCAN_SSIDS) 2290 break; 2291 } 2292 } 2293 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) { 2294 char msg[200], *pos, *end; 2295 int res; 2296 2297 pos = msg; 2298 end = pos + sizeof(msg); 2299 *pos = '\0'; 2300 2301 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem) 2302 { 2303 freqs[num_freqs] = nla_get_u32(nl); 2304 res = os_snprintf(pos, end - pos, " %d", 2305 freqs[num_freqs]); 2306 if (res > 0 && end - pos > res) 2307 pos += res; 2308 num_freqs++; 2309 if (num_freqs == MAX_REPORT_FREQS - 1) 2310 break; 2311 } 2312 info->freqs = freqs; 2313 info->num_freqs = num_freqs; 2314 wpa_printf(MSG_DEBUG, "nl80211: Scan included frequencies:%s", 2315 msg); 2316 } 2317 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event); 2318 } 2319 2320 2321 static int get_link_signal(struct nl_msg *msg, void *arg) 2322 { 2323 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2324 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2325 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1]; 2326 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = { 2327 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 }, 2328 [NL80211_STA_INFO_SIGNAL_AVG] = { .type = NLA_U8 }, 2329 }; 2330 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1]; 2331 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = { 2332 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 }, 2333 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 }, 2334 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG }, 2335 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG }, 2336 }; 2337 struct wpa_signal_info *sig_change = arg; 2338 2339 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2340 genlmsg_attrlen(gnlh, 0), NULL); 2341 if (!tb[NL80211_ATTR_STA_INFO] || 2342 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX, 2343 tb[NL80211_ATTR_STA_INFO], policy)) 2344 return NL_SKIP; 2345 if (!sinfo[NL80211_STA_INFO_SIGNAL]) 2346 return NL_SKIP; 2347 2348 sig_change->current_signal = 2349 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]); 2350 2351 if (sinfo[NL80211_STA_INFO_SIGNAL_AVG]) 2352 sig_change->avg_signal = 2353 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL_AVG]); 2354 else 2355 sig_change->avg_signal = 0; 2356 2357 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) { 2358 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX, 2359 sinfo[NL80211_STA_INFO_TX_BITRATE], 2360 rate_policy)) { 2361 sig_change->current_txrate = 0; 2362 } else { 2363 if (rinfo[NL80211_RATE_INFO_BITRATE]) { 2364 sig_change->current_txrate = 2365 nla_get_u16(rinfo[ 2366 NL80211_RATE_INFO_BITRATE]) * 100; 2367 } 2368 } 2369 } 2370 2371 return NL_SKIP; 2372 } 2373 2374 2375 static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv, 2376 struct wpa_signal_info *sig) 2377 { 2378 struct nl_msg *msg; 2379 2380 sig->current_signal = -9999; 2381 sig->current_txrate = 0; 2382 2383 msg = nlmsg_alloc(); 2384 if (!msg) 2385 return -ENOMEM; 2386 2387 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 2388 2389 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2390 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 2391 2392 return send_and_recv_msgs(drv, msg, get_link_signal, sig); 2393 nla_put_failure: 2394 nlmsg_free(msg); 2395 return -ENOBUFS; 2396 } 2397 2398 2399 static int get_link_noise(struct nl_msg *msg, void *arg) 2400 { 2401 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2402 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2403 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 2404 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 2405 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 2406 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 2407 }; 2408 struct wpa_signal_info *sig_change = arg; 2409 2410 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2411 genlmsg_attrlen(gnlh, 0), NULL); 2412 2413 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 2414 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!"); 2415 return NL_SKIP; 2416 } 2417 2418 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 2419 tb[NL80211_ATTR_SURVEY_INFO], 2420 survey_policy)) { 2421 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested " 2422 "attributes!"); 2423 return NL_SKIP; 2424 } 2425 2426 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 2427 return NL_SKIP; 2428 2429 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 2430 sig_change->frequency) 2431 return NL_SKIP; 2432 2433 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 2434 return NL_SKIP; 2435 2436 sig_change->current_noise = 2437 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 2438 2439 return NL_SKIP; 2440 } 2441 2442 2443 static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv, 2444 struct wpa_signal_info *sig_change) 2445 { 2446 struct nl_msg *msg; 2447 2448 sig_change->current_noise = 9999; 2449 sig_change->frequency = drv->assoc_freq; 2450 2451 msg = nlmsg_alloc(); 2452 if (!msg) 2453 return -ENOMEM; 2454 2455 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 2456 2457 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2458 2459 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change); 2460 nla_put_failure: 2461 nlmsg_free(msg); 2462 return -ENOBUFS; 2463 } 2464 2465 2466 static int get_noise_for_scan_results(struct nl_msg *msg, void *arg) 2467 { 2468 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2469 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2470 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 2471 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 2472 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 2473 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 2474 }; 2475 struct wpa_scan_results *scan_results = arg; 2476 struct wpa_scan_res *scan_res; 2477 size_t i; 2478 2479 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2480 genlmsg_attrlen(gnlh, 0), NULL); 2481 2482 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 2483 wpa_printf(MSG_DEBUG, "nl80211: Survey data missing"); 2484 return NL_SKIP; 2485 } 2486 2487 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 2488 tb[NL80211_ATTR_SURVEY_INFO], 2489 survey_policy)) { 2490 wpa_printf(MSG_DEBUG, "nl80211: Failed to parse nested " 2491 "attributes"); 2492 return NL_SKIP; 2493 } 2494 2495 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 2496 return NL_SKIP; 2497 2498 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 2499 return NL_SKIP; 2500 2501 for (i = 0; i < scan_results->num; ++i) { 2502 scan_res = scan_results->res[i]; 2503 if (!scan_res) 2504 continue; 2505 if ((int) nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 2506 scan_res->freq) 2507 continue; 2508 if (!(scan_res->flags & WPA_SCAN_NOISE_INVALID)) 2509 continue; 2510 scan_res->noise = (s8) 2511 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 2512 scan_res->flags &= ~WPA_SCAN_NOISE_INVALID; 2513 } 2514 2515 return NL_SKIP; 2516 } 2517 2518 2519 static int nl80211_get_noise_for_scan_results( 2520 struct wpa_driver_nl80211_data *drv, 2521 struct wpa_scan_results *scan_res) 2522 { 2523 struct nl_msg *msg; 2524 2525 msg = nlmsg_alloc(); 2526 if (!msg) 2527 return -ENOMEM; 2528 2529 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 2530 2531 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2532 2533 return send_and_recv_msgs(drv, msg, get_noise_for_scan_results, 2534 scan_res); 2535 nla_put_failure: 2536 nlmsg_free(msg); 2537 return -ENOBUFS; 2538 } 2539 2540 2541 static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv, 2542 struct nlattr *tb[]) 2543 { 2544 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = { 2545 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, 2546 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 }, 2547 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, 2548 [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 }, 2549 }; 2550 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1]; 2551 enum nl80211_cqm_rssi_threshold_event event; 2552 union wpa_event_data ed; 2553 struct wpa_signal_info sig; 2554 int res; 2555 2556 if (tb[NL80211_ATTR_CQM] == NULL || 2557 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM], 2558 cqm_policy)) { 2559 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event"); 2560 return; 2561 } 2562 2563 os_memset(&ed, 0, sizeof(ed)); 2564 2565 if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) { 2566 if (!tb[NL80211_ATTR_MAC]) 2567 return; 2568 os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]), 2569 ETH_ALEN); 2570 wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed); 2571 return; 2572 } 2573 2574 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL) 2575 return; 2576 event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]); 2577 2578 if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) { 2579 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 2580 "event: RSSI high"); 2581 ed.signal_change.above_threshold = 1; 2582 } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) { 2583 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 2584 "event: RSSI low"); 2585 ed.signal_change.above_threshold = 0; 2586 } else 2587 return; 2588 2589 res = nl80211_get_link_signal(drv, &sig); 2590 if (res == 0) { 2591 ed.signal_change.current_signal = sig.current_signal; 2592 ed.signal_change.current_txrate = sig.current_txrate; 2593 wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d", 2594 sig.current_signal, sig.current_txrate); 2595 } 2596 2597 res = nl80211_get_link_noise(drv, &sig); 2598 if (res == 0) { 2599 ed.signal_change.current_noise = sig.current_noise; 2600 wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm", 2601 sig.current_noise); 2602 } 2603 2604 wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed); 2605 } 2606 2607 2608 static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv, 2609 struct nlattr **tb) 2610 { 2611 u8 *addr; 2612 union wpa_event_data data; 2613 2614 if (tb[NL80211_ATTR_MAC] == NULL) 2615 return; 2616 addr = nla_data(tb[NL80211_ATTR_MAC]); 2617 wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr)); 2618 2619 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2620 u8 *ies = NULL; 2621 size_t ies_len = 0; 2622 if (tb[NL80211_ATTR_IE]) { 2623 ies = nla_data(tb[NL80211_ATTR_IE]); 2624 ies_len = nla_len(tb[NL80211_ATTR_IE]); 2625 } 2626 wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len); 2627 drv_event_assoc(drv->ctx, addr, ies, ies_len, 0); 2628 return; 2629 } 2630 2631 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2632 return; 2633 2634 os_memset(&data, 0, sizeof(data)); 2635 os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN); 2636 wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data); 2637 } 2638 2639 2640 static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv, 2641 struct nlattr **tb) 2642 { 2643 u8 *addr; 2644 union wpa_event_data data; 2645 2646 if (tb[NL80211_ATTR_MAC] == NULL) 2647 return; 2648 addr = nla_data(tb[NL80211_ATTR_MAC]); 2649 wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR, 2650 MAC2STR(addr)); 2651 2652 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2653 drv_event_disassoc(drv->ctx, addr); 2654 return; 2655 } 2656 2657 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2658 return; 2659 2660 os_memset(&data, 0, sizeof(data)); 2661 os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN); 2662 wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data); 2663 } 2664 2665 2666 static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv, 2667 struct nlattr **tb) 2668 { 2669 struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA]; 2670 static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = { 2671 [NL80211_REKEY_DATA_KEK] = { 2672 .minlen = NL80211_KEK_LEN, 2673 .maxlen = NL80211_KEK_LEN, 2674 }, 2675 [NL80211_REKEY_DATA_KCK] = { 2676 .minlen = NL80211_KCK_LEN, 2677 .maxlen = NL80211_KCK_LEN, 2678 }, 2679 [NL80211_REKEY_DATA_REPLAY_CTR] = { 2680 .minlen = NL80211_REPLAY_CTR_LEN, 2681 .maxlen = NL80211_REPLAY_CTR_LEN, 2682 }, 2683 }; 2684 union wpa_event_data data; 2685 2686 if (!tb[NL80211_ATTR_MAC]) 2687 return; 2688 if (!tb[NL80211_ATTR_REKEY_DATA]) 2689 return; 2690 if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA, 2691 tb[NL80211_ATTR_REKEY_DATA], rekey_policy)) 2692 return; 2693 if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]) 2694 return; 2695 2696 os_memset(&data, 0, sizeof(data)); 2697 data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]); 2698 wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR, 2699 MAC2STR(data.driver_gtk_rekey.bssid)); 2700 data.driver_gtk_rekey.replay_ctr = 2701 nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]); 2702 wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter", 2703 data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN); 2704 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data); 2705 } 2706 2707 2708 static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv, 2709 struct nlattr **tb) 2710 { 2711 struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE]; 2712 static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = { 2713 [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 }, 2714 [NL80211_PMKSA_CANDIDATE_BSSID] = { 2715 .minlen = ETH_ALEN, 2716 .maxlen = ETH_ALEN, 2717 }, 2718 [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG }, 2719 }; 2720 union wpa_event_data data; 2721 2722 wpa_printf(MSG_DEBUG, "nl80211: PMKSA candidate event"); 2723 2724 if (!tb[NL80211_ATTR_PMKSA_CANDIDATE]) 2725 return; 2726 if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE, 2727 tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy)) 2728 return; 2729 if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] || 2730 !cand[NL80211_PMKSA_CANDIDATE_BSSID]) 2731 return; 2732 2733 os_memset(&data, 0, sizeof(data)); 2734 os_memcpy(data.pmkid_candidate.bssid, 2735 nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN); 2736 data.pmkid_candidate.index = 2737 nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]); 2738 data.pmkid_candidate.preauth = 2739 cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL; 2740 wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data); 2741 } 2742 2743 2744 static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv, 2745 struct nlattr **tb) 2746 { 2747 union wpa_event_data data; 2748 2749 wpa_printf(MSG_DEBUG, "nl80211: Probe client event"); 2750 2751 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_ACK]) 2752 return; 2753 2754 os_memset(&data, 0, sizeof(data)); 2755 os_memcpy(data.client_poll.addr, 2756 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2757 2758 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_CLIENT_POLL_OK, &data); 2759 } 2760 2761 2762 static void nl80211_tdls_oper_event(struct wpa_driver_nl80211_data *drv, 2763 struct nlattr **tb) 2764 { 2765 union wpa_event_data data; 2766 2767 wpa_printf(MSG_DEBUG, "nl80211: TDLS operation event"); 2768 2769 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_TDLS_OPERATION]) 2770 return; 2771 2772 os_memset(&data, 0, sizeof(data)); 2773 os_memcpy(data.tdls.peer, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2774 switch (nla_get_u8(tb[NL80211_ATTR_TDLS_OPERATION])) { 2775 case NL80211_TDLS_SETUP: 2776 wpa_printf(MSG_DEBUG, "nl80211: TDLS setup request for peer " 2777 MACSTR, MAC2STR(data.tdls.peer)); 2778 data.tdls.oper = TDLS_REQUEST_SETUP; 2779 break; 2780 case NL80211_TDLS_TEARDOWN: 2781 wpa_printf(MSG_DEBUG, "nl80211: TDLS teardown request for peer " 2782 MACSTR, MAC2STR(data.tdls.peer)); 2783 data.tdls.oper = TDLS_REQUEST_TEARDOWN; 2784 break; 2785 default: 2786 wpa_printf(MSG_DEBUG, "nl80211: Unsupported TDLS operatione " 2787 "event"); 2788 return; 2789 } 2790 if (tb[NL80211_ATTR_REASON_CODE]) { 2791 data.tdls.reason_code = 2792 nla_get_u16(tb[NL80211_ATTR_REASON_CODE]); 2793 } 2794 2795 wpa_supplicant_event(drv->ctx, EVENT_TDLS, &data); 2796 } 2797 2798 2799 static void nl80211_stop_ap(struct wpa_driver_nl80211_data *drv, 2800 struct nlattr **tb) 2801 { 2802 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_UNAVAILABLE, NULL); 2803 } 2804 2805 2806 static void nl80211_connect_failed_event(struct wpa_driver_nl80211_data *drv, 2807 struct nlattr **tb) 2808 { 2809 union wpa_event_data data; 2810 u32 reason; 2811 2812 wpa_printf(MSG_DEBUG, "nl80211: Connect failed event"); 2813 2814 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_CONN_FAILED_REASON]) 2815 return; 2816 2817 os_memset(&data, 0, sizeof(data)); 2818 os_memcpy(data.connect_failed_reason.addr, 2819 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2820 2821 reason = nla_get_u32(tb[NL80211_ATTR_CONN_FAILED_REASON]); 2822 switch (reason) { 2823 case NL80211_CONN_FAIL_MAX_CLIENTS: 2824 wpa_printf(MSG_DEBUG, "nl80211: Max client reached"); 2825 data.connect_failed_reason.code = MAX_CLIENT_REACHED; 2826 break; 2827 case NL80211_CONN_FAIL_BLOCKED_CLIENT: 2828 wpa_printf(MSG_DEBUG, "nl80211: Blocked client " MACSTR 2829 " tried to connect", 2830 MAC2STR(data.connect_failed_reason.addr)); 2831 data.connect_failed_reason.code = BLOCKED_CLIENT; 2832 break; 2833 default: 2834 wpa_printf(MSG_DEBUG, "nl8021l: Unknown connect failed reason " 2835 "%u", reason); 2836 return; 2837 } 2838 2839 wpa_supplicant_event(drv->ctx, EVENT_CONNECT_FAILED_REASON, &data); 2840 } 2841 2842 2843 static void nl80211_radar_event(struct wpa_driver_nl80211_data *drv, 2844 struct nlattr **tb) 2845 { 2846 union wpa_event_data data; 2847 enum nl80211_radar_event event_type; 2848 2849 if (!tb[NL80211_ATTR_WIPHY_FREQ] || !tb[NL80211_ATTR_RADAR_EVENT]) 2850 return; 2851 2852 os_memset(&data, 0, sizeof(data)); 2853 data.dfs_event.freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); 2854 event_type = nla_get_u32(tb[NL80211_ATTR_RADAR_EVENT]); 2855 2856 /* Check HT params */ 2857 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { 2858 data.dfs_event.ht_enabled = 1; 2859 data.dfs_event.chan_offset = 0; 2860 2861 switch (nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])) { 2862 case NL80211_CHAN_NO_HT: 2863 data.dfs_event.ht_enabled = 0; 2864 break; 2865 case NL80211_CHAN_HT20: 2866 break; 2867 case NL80211_CHAN_HT40PLUS: 2868 data.dfs_event.chan_offset = 1; 2869 break; 2870 case NL80211_CHAN_HT40MINUS: 2871 data.dfs_event.chan_offset = -1; 2872 break; 2873 } 2874 } 2875 2876 /* Get VHT params */ 2877 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) 2878 data.dfs_event.chan_width = 2879 convert2width(nla_get_u32( 2880 tb[NL80211_ATTR_CHANNEL_WIDTH])); 2881 if (tb[NL80211_ATTR_CENTER_FREQ1]) 2882 data.dfs_event.cf1 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); 2883 if (tb[NL80211_ATTR_CENTER_FREQ2]) 2884 data.dfs_event.cf2 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); 2885 2886 wpa_printf(MSG_DEBUG, "nl80211: DFS event on freq %d MHz, ht: %d, offset: %d, width: %d, cf1: %dMHz, cf2: %dMHz", 2887 data.dfs_event.freq, data.dfs_event.ht_enabled, 2888 data.dfs_event.chan_offset, data.dfs_event.chan_width, 2889 data.dfs_event.cf1, data.dfs_event.cf2); 2890 2891 switch (event_type) { 2892 case NL80211_RADAR_DETECTED: 2893 wpa_supplicant_event(drv->ctx, EVENT_DFS_RADAR_DETECTED, &data); 2894 break; 2895 case NL80211_RADAR_CAC_FINISHED: 2896 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_FINISHED, &data); 2897 break; 2898 case NL80211_RADAR_CAC_ABORTED: 2899 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_ABORTED, &data); 2900 break; 2901 case NL80211_RADAR_NOP_FINISHED: 2902 wpa_supplicant_event(drv->ctx, EVENT_DFS_NOP_FINISHED, &data); 2903 break; 2904 default: 2905 wpa_printf(MSG_DEBUG, "nl80211: Unknown radar event %d " 2906 "received", event_type); 2907 break; 2908 } 2909 } 2910 2911 2912 static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb, 2913 int wds) 2914 { 2915 struct wpa_driver_nl80211_data *drv = bss->drv; 2916 union wpa_event_data event; 2917 2918 if (!tb[NL80211_ATTR_MAC]) 2919 return; 2920 2921 os_memset(&event, 0, sizeof(event)); 2922 event.rx_from_unknown.bssid = bss->addr; 2923 event.rx_from_unknown.addr = nla_data(tb[NL80211_ATTR_MAC]); 2924 event.rx_from_unknown.wds = wds; 2925 2926 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 2927 } 2928 2929 2930 static void qca_nl80211_avoid_freq(struct wpa_driver_nl80211_data *drv, 2931 const u8 *data, size_t len) 2932 { 2933 u32 i, count; 2934 union wpa_event_data event; 2935 struct wpa_freq_range *range = NULL; 2936 const struct qca_avoid_freq_list *freq_range; 2937 2938 freq_range = (const struct qca_avoid_freq_list *) data; 2939 if (len < sizeof(freq_range->count)) 2940 return; 2941 2942 count = freq_range->count; 2943 if (len < sizeof(freq_range->count) + 2944 count * sizeof(struct qca_avoid_freq_range)) { 2945 wpa_printf(MSG_DEBUG, "nl80211: Ignored too short avoid frequency list (len=%u)", 2946 (unsigned int) len); 2947 return; 2948 } 2949 2950 if (count > 0) { 2951 range = os_calloc(count, sizeof(struct wpa_freq_range)); 2952 if (range == NULL) 2953 return; 2954 } 2955 2956 os_memset(&event, 0, sizeof(event)); 2957 for (i = 0; i < count; i++) { 2958 unsigned int idx = event.freq_range.num; 2959 range[idx].min = freq_range->range[i].start_freq; 2960 range[idx].max = freq_range->range[i].end_freq; 2961 wpa_printf(MSG_DEBUG, "nl80211: Avoid frequency range: %u-%u", 2962 range[idx].min, range[idx].max); 2963 if (range[idx].min > range[idx].max) { 2964 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid frequency range"); 2965 continue; 2966 } 2967 event.freq_range.num++; 2968 } 2969 event.freq_range.range = range; 2970 2971 wpa_supplicant_event(drv->ctx, EVENT_AVOID_FREQUENCIES, &event); 2972 2973 os_free(range); 2974 } 2975 2976 2977 static void nl80211_vendor_event_qca(struct wpa_driver_nl80211_data *drv, 2978 u32 subcmd, u8 *data, size_t len) 2979 { 2980 switch (subcmd) { 2981 case QCA_NL80211_VENDOR_SUBCMD_AVOID_FREQUENCY: 2982 qca_nl80211_avoid_freq(drv, data, len); 2983 break; 2984 default: 2985 wpa_printf(MSG_DEBUG, 2986 "nl80211: Ignore unsupported QCA vendor event %u", 2987 subcmd); 2988 break; 2989 } 2990 } 2991 2992 2993 static void nl80211_vendor_event(struct wpa_driver_nl80211_data *drv, 2994 struct nlattr **tb) 2995 { 2996 u32 vendor_id, subcmd, wiphy = 0; 2997 int wiphy_idx; 2998 u8 *data = NULL; 2999 size_t len = 0; 3000 3001 if (!tb[NL80211_ATTR_VENDOR_ID] || 3002 !tb[NL80211_ATTR_VENDOR_SUBCMD]) 3003 return; 3004 3005 vendor_id = nla_get_u32(tb[NL80211_ATTR_VENDOR_ID]); 3006 subcmd = nla_get_u32(tb[NL80211_ATTR_VENDOR_SUBCMD]); 3007 3008 if (tb[NL80211_ATTR_WIPHY]) 3009 wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]); 3010 3011 wpa_printf(MSG_DEBUG, "nl80211: Vendor event: wiphy=%u vendor_id=0x%x subcmd=%u", 3012 wiphy, vendor_id, subcmd); 3013 3014 if (tb[NL80211_ATTR_VENDOR_DATA]) { 3015 data = nla_data(tb[NL80211_ATTR_VENDOR_DATA]); 3016 len = nla_len(tb[NL80211_ATTR_VENDOR_DATA]); 3017 wpa_hexdump(MSG_MSGDUMP, "nl80211: Vendor data", data, len); 3018 } 3019 3020 wiphy_idx = nl80211_get_wiphy_index(drv->first_bss); 3021 if (wiphy_idx >= 0 && wiphy_idx != (int) wiphy) { 3022 wpa_printf(MSG_DEBUG, "nl80211: Ignore vendor event for foreign wiphy %u (own: %d)", 3023 wiphy, wiphy_idx); 3024 return; 3025 } 3026 3027 switch (vendor_id) { 3028 case OUI_QCA: 3029 nl80211_vendor_event_qca(drv, subcmd, data, len); 3030 break; 3031 default: 3032 wpa_printf(MSG_DEBUG, "nl80211: Ignore unsupported vendor event"); 3033 break; 3034 } 3035 } 3036 3037 3038 static void nl80211_reg_change_event(struct wpa_driver_nl80211_data *drv, 3039 struct nlattr *tb[]) 3040 { 3041 union wpa_event_data data; 3042 enum nl80211_reg_initiator init; 3043 3044 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change"); 3045 3046 if (tb[NL80211_ATTR_REG_INITIATOR] == NULL) 3047 return; 3048 3049 os_memset(&data, 0, sizeof(data)); 3050 init = nla_get_u8(tb[NL80211_ATTR_REG_INITIATOR]); 3051 wpa_printf(MSG_DEBUG, " * initiator=%d", init); 3052 switch (init) { 3053 case NL80211_REGDOM_SET_BY_CORE: 3054 data.channel_list_changed.initiator = REGDOM_SET_BY_CORE; 3055 break; 3056 case NL80211_REGDOM_SET_BY_USER: 3057 data.channel_list_changed.initiator = REGDOM_SET_BY_USER; 3058 break; 3059 case NL80211_REGDOM_SET_BY_DRIVER: 3060 data.channel_list_changed.initiator = REGDOM_SET_BY_DRIVER; 3061 break; 3062 case NL80211_REGDOM_SET_BY_COUNTRY_IE: 3063 data.channel_list_changed.initiator = REGDOM_SET_BY_COUNTRY_IE; 3064 break; 3065 } 3066 3067 if (tb[NL80211_ATTR_REG_TYPE]) { 3068 enum nl80211_reg_type type; 3069 type = nla_get_u8(tb[NL80211_ATTR_REG_TYPE]); 3070 wpa_printf(MSG_DEBUG, " * type=%d", type); 3071 switch (type) { 3072 case NL80211_REGDOM_TYPE_COUNTRY: 3073 data.channel_list_changed.type = REGDOM_TYPE_COUNTRY; 3074 break; 3075 case NL80211_REGDOM_TYPE_WORLD: 3076 data.channel_list_changed.type = REGDOM_TYPE_WORLD; 3077 break; 3078 case NL80211_REGDOM_TYPE_CUSTOM_WORLD: 3079 data.channel_list_changed.type = 3080 REGDOM_TYPE_CUSTOM_WORLD; 3081 break; 3082 case NL80211_REGDOM_TYPE_INTERSECTION: 3083 data.channel_list_changed.type = 3084 REGDOM_TYPE_INTERSECTION; 3085 break; 3086 } 3087 } 3088 3089 if (tb[NL80211_ATTR_REG_ALPHA2]) { 3090 os_strlcpy(data.channel_list_changed.alpha2, 3091 nla_get_string(tb[NL80211_ATTR_REG_ALPHA2]), 3092 sizeof(data.channel_list_changed.alpha2)); 3093 wpa_printf(MSG_DEBUG, " * alpha2=%s", 3094 data.channel_list_changed.alpha2); 3095 } 3096 3097 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, &data); 3098 } 3099 3100 3101 static void do_process_drv_event(struct i802_bss *bss, int cmd, 3102 struct nlattr **tb) 3103 { 3104 struct wpa_driver_nl80211_data *drv = bss->drv; 3105 union wpa_event_data data; 3106 3107 wpa_printf(MSG_DEBUG, "nl80211: Drv Event %d (%s) received for %s", 3108 cmd, nl80211_command_to_string(cmd), bss->ifname); 3109 3110 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED && 3111 (cmd == NL80211_CMD_NEW_SCAN_RESULTS || 3112 cmd == NL80211_CMD_SCAN_ABORTED)) { 3113 wpa_driver_nl80211_set_mode(drv->first_bss, 3114 drv->ap_scan_as_station); 3115 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 3116 } 3117 3118 switch (cmd) { 3119 case NL80211_CMD_TRIGGER_SCAN: 3120 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan trigger"); 3121 drv->scan_state = SCAN_STARTED; 3122 if (drv->scan_for_auth) { 3123 /* 3124 * Cannot indicate EVENT_SCAN_STARTED here since we skip 3125 * EVENT_SCAN_RESULTS in scan_for_auth case and the 3126 * upper layer implementation could get confused about 3127 * scanning state. 3128 */ 3129 wpa_printf(MSG_DEBUG, "nl80211: Do not indicate scan-start event due to internal scan_for_auth"); 3130 break; 3131 } 3132 wpa_supplicant_event(drv->ctx, EVENT_SCAN_STARTED, NULL); 3133 break; 3134 case NL80211_CMD_START_SCHED_SCAN: 3135 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan started"); 3136 drv->scan_state = SCHED_SCAN_STARTED; 3137 break; 3138 case NL80211_CMD_SCHED_SCAN_STOPPED: 3139 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan stopped"); 3140 drv->scan_state = SCHED_SCAN_STOPPED; 3141 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL); 3142 break; 3143 case NL80211_CMD_NEW_SCAN_RESULTS: 3144 wpa_dbg(drv->ctx, MSG_DEBUG, 3145 "nl80211: New scan results available"); 3146 drv->scan_state = SCAN_COMPLETED; 3147 drv->scan_complete_events = 1; 3148 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 3149 drv->ctx); 3150 send_scan_event(drv, 0, tb); 3151 break; 3152 case NL80211_CMD_SCHED_SCAN_RESULTS: 3153 wpa_dbg(drv->ctx, MSG_DEBUG, 3154 "nl80211: New sched scan results available"); 3155 drv->scan_state = SCHED_SCAN_RESULTS; 3156 send_scan_event(drv, 0, tb); 3157 break; 3158 case NL80211_CMD_SCAN_ABORTED: 3159 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan aborted"); 3160 drv->scan_state = SCAN_ABORTED; 3161 /* 3162 * Need to indicate that scan results are available in order 3163 * not to make wpa_supplicant stop its scanning. 3164 */ 3165 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 3166 drv->ctx); 3167 send_scan_event(drv, 1, tb); 3168 break; 3169 case NL80211_CMD_AUTHENTICATE: 3170 case NL80211_CMD_ASSOCIATE: 3171 case NL80211_CMD_DEAUTHENTICATE: 3172 case NL80211_CMD_DISASSOCIATE: 3173 case NL80211_CMD_FRAME_TX_STATUS: 3174 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 3175 case NL80211_CMD_UNPROT_DISASSOCIATE: 3176 mlme_event(bss, cmd, tb[NL80211_ATTR_FRAME], 3177 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 3178 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 3179 tb[NL80211_ATTR_COOKIE], 3180 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 3181 break; 3182 case NL80211_CMD_CONNECT: 3183 case NL80211_CMD_ROAM: 3184 mlme_event_connect(drv, cmd, 3185 tb[NL80211_ATTR_STATUS_CODE], 3186 tb[NL80211_ATTR_MAC], 3187 tb[NL80211_ATTR_REQ_IE], 3188 tb[NL80211_ATTR_RESP_IE]); 3189 break; 3190 case NL80211_CMD_CH_SWITCH_NOTIFY: 3191 mlme_event_ch_switch(drv, 3192 tb[NL80211_ATTR_IFINDEX], 3193 tb[NL80211_ATTR_WIPHY_FREQ], 3194 tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE], 3195 tb[NL80211_ATTR_CHANNEL_WIDTH], 3196 tb[NL80211_ATTR_CENTER_FREQ1], 3197 tb[NL80211_ATTR_CENTER_FREQ2]); 3198 break; 3199 case NL80211_CMD_DISCONNECT: 3200 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE], 3201 tb[NL80211_ATTR_MAC], 3202 tb[NL80211_ATTR_DISCONNECTED_BY_AP]); 3203 break; 3204 case NL80211_CMD_MICHAEL_MIC_FAILURE: 3205 mlme_event_michael_mic_failure(bss, tb); 3206 break; 3207 case NL80211_CMD_JOIN_IBSS: 3208 mlme_event_join_ibss(drv, tb); 3209 break; 3210 case NL80211_CMD_REMAIN_ON_CHANNEL: 3211 mlme_event_remain_on_channel(drv, 0, tb); 3212 break; 3213 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL: 3214 mlme_event_remain_on_channel(drv, 1, tb); 3215 break; 3216 case NL80211_CMD_NOTIFY_CQM: 3217 nl80211_cqm_event(drv, tb); 3218 break; 3219 case NL80211_CMD_REG_CHANGE: 3220 nl80211_reg_change_event(drv, tb); 3221 break; 3222 case NL80211_CMD_REG_BEACON_HINT: 3223 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint"); 3224 os_memset(&data, 0, sizeof(data)); 3225 data.channel_list_changed.initiator = REGDOM_BEACON_HINT; 3226 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 3227 &data); 3228 break; 3229 case NL80211_CMD_NEW_STATION: 3230 nl80211_new_station_event(drv, tb); 3231 break; 3232 case NL80211_CMD_DEL_STATION: 3233 nl80211_del_station_event(drv, tb); 3234 break; 3235 case NL80211_CMD_SET_REKEY_OFFLOAD: 3236 nl80211_rekey_offload_event(drv, tb); 3237 break; 3238 case NL80211_CMD_PMKSA_CANDIDATE: 3239 nl80211_pmksa_candidate_event(drv, tb); 3240 break; 3241 case NL80211_CMD_PROBE_CLIENT: 3242 nl80211_client_probe_event(drv, tb); 3243 break; 3244 case NL80211_CMD_TDLS_OPER: 3245 nl80211_tdls_oper_event(drv, tb); 3246 break; 3247 case NL80211_CMD_CONN_FAILED: 3248 nl80211_connect_failed_event(drv, tb); 3249 break; 3250 case NL80211_CMD_FT_EVENT: 3251 mlme_event_ft_event(drv, tb); 3252 break; 3253 case NL80211_CMD_RADAR_DETECT: 3254 nl80211_radar_event(drv, tb); 3255 break; 3256 case NL80211_CMD_STOP_AP: 3257 nl80211_stop_ap(drv, tb); 3258 break; 3259 case NL80211_CMD_VENDOR: 3260 nl80211_vendor_event(drv, tb); 3261 break; 3262 default: 3263 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Ignored unknown event " 3264 "(cmd=%d)", cmd); 3265 break; 3266 } 3267 } 3268 3269 3270 static int process_drv_event(struct nl_msg *msg, void *arg) 3271 { 3272 struct wpa_driver_nl80211_data *drv = arg; 3273 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3274 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3275 struct i802_bss *bss; 3276 int ifidx = -1; 3277 3278 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3279 genlmsg_attrlen(gnlh, 0), NULL); 3280 3281 if (tb[NL80211_ATTR_IFINDEX]) { 3282 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 3283 3284 for (bss = drv->first_bss; bss; bss = bss->next) 3285 if (ifidx == -1 || ifidx == bss->ifindex) { 3286 do_process_drv_event(bss, gnlh->cmd, tb); 3287 return NL_SKIP; 3288 } 3289 wpa_printf(MSG_DEBUG, 3290 "nl80211: Ignored event (cmd=%d) for foreign interface (ifindex %d)", 3291 gnlh->cmd, ifidx); 3292 } else if (tb[NL80211_ATTR_WDEV]) { 3293 u64 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 3294 wpa_printf(MSG_DEBUG, "nl80211: Process event on P2P device"); 3295 for (bss = drv->first_bss; bss; bss = bss->next) { 3296 if (bss->wdev_id_set && wdev_id == bss->wdev_id) { 3297 do_process_drv_event(bss, gnlh->cmd, tb); 3298 return NL_SKIP; 3299 } 3300 } 3301 wpa_printf(MSG_DEBUG, 3302 "nl80211: Ignored event (cmd=%d) for foreign interface (wdev 0x%llx)", 3303 gnlh->cmd, (long long unsigned int) wdev_id); 3304 } 3305 3306 return NL_SKIP; 3307 } 3308 3309 3310 static int process_global_event(struct nl_msg *msg, void *arg) 3311 { 3312 struct nl80211_global *global = arg; 3313 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3314 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3315 struct wpa_driver_nl80211_data *drv, *tmp; 3316 int ifidx = -1; 3317 struct i802_bss *bss; 3318 u64 wdev_id = 0; 3319 int wdev_id_set = 0; 3320 3321 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3322 genlmsg_attrlen(gnlh, 0), NULL); 3323 3324 if (tb[NL80211_ATTR_IFINDEX]) 3325 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 3326 else if (tb[NL80211_ATTR_WDEV]) { 3327 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 3328 wdev_id_set = 1; 3329 } 3330 3331 dl_list_for_each_safe(drv, tmp, &global->interfaces, 3332 struct wpa_driver_nl80211_data, list) { 3333 for (bss = drv->first_bss; bss; bss = bss->next) { 3334 if ((ifidx == -1 && !wdev_id_set) || 3335 ifidx == bss->ifindex || 3336 (wdev_id_set && bss->wdev_id_set && 3337 wdev_id == bss->wdev_id)) { 3338 do_process_drv_event(bss, gnlh->cmd, tb); 3339 return NL_SKIP; 3340 } 3341 } 3342 } 3343 3344 return NL_SKIP; 3345 } 3346 3347 3348 static int process_bss_event(struct nl_msg *msg, void *arg) 3349 { 3350 struct i802_bss *bss = arg; 3351 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3352 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3353 3354 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3355 genlmsg_attrlen(gnlh, 0), NULL); 3356 3357 wpa_printf(MSG_DEBUG, "nl80211: BSS Event %d (%s) received for %s", 3358 gnlh->cmd, nl80211_command_to_string(gnlh->cmd), 3359 bss->ifname); 3360 3361 switch (gnlh->cmd) { 3362 case NL80211_CMD_FRAME: 3363 case NL80211_CMD_FRAME_TX_STATUS: 3364 mlme_event(bss, gnlh->cmd, tb[NL80211_ATTR_FRAME], 3365 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 3366 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 3367 tb[NL80211_ATTR_COOKIE], 3368 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 3369 break; 3370 case NL80211_CMD_UNEXPECTED_FRAME: 3371 nl80211_spurious_frame(bss, tb, 0); 3372 break; 3373 case NL80211_CMD_UNEXPECTED_4ADDR_FRAME: 3374 nl80211_spurious_frame(bss, tb, 1); 3375 break; 3376 default: 3377 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event " 3378 "(cmd=%d)", gnlh->cmd); 3379 break; 3380 } 3381 3382 return NL_SKIP; 3383 } 3384 3385 3386 static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx, 3387 void *handle) 3388 { 3389 struct nl_cb *cb = eloop_ctx; 3390 int res; 3391 3392 wpa_printf(MSG_MSGDUMP, "nl80211: Event message available"); 3393 3394 res = nl_recvmsgs(handle, cb); 3395 if (res < 0) { 3396 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d", 3397 __func__, res); 3398 } 3399 } 3400 3401 3402 /** 3403 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain 3404 * @priv: driver_nl80211 private data 3405 * @alpha2_arg: country to which to switch to 3406 * Returns: 0 on success, -1 on failure 3407 * 3408 * This asks nl80211 to set the regulatory domain for given 3409 * country ISO / IEC alpha2. 3410 */ 3411 static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg) 3412 { 3413 struct i802_bss *bss = priv; 3414 struct wpa_driver_nl80211_data *drv = bss->drv; 3415 char alpha2[3]; 3416 struct nl_msg *msg; 3417 3418 msg = nlmsg_alloc(); 3419 if (!msg) 3420 return -ENOMEM; 3421 3422 alpha2[0] = alpha2_arg[0]; 3423 alpha2[1] = alpha2_arg[1]; 3424 alpha2[2] = '\0'; 3425 3426 nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG); 3427 3428 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2); 3429 if (send_and_recv_msgs(drv, msg, NULL, NULL)) 3430 return -EINVAL; 3431 return 0; 3432 nla_put_failure: 3433 nlmsg_free(msg); 3434 return -EINVAL; 3435 } 3436 3437 3438 static int nl80211_get_country(struct nl_msg *msg, void *arg) 3439 { 3440 char *alpha2 = arg; 3441 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 3442 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3443 3444 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3445 genlmsg_attrlen(gnlh, 0), NULL); 3446 if (!tb_msg[NL80211_ATTR_REG_ALPHA2]) { 3447 wpa_printf(MSG_DEBUG, "nl80211: No country information available"); 3448 return NL_SKIP; 3449 } 3450 os_strlcpy(alpha2, nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]), 3); 3451 return NL_SKIP; 3452 } 3453 3454 3455 static int wpa_driver_nl80211_get_country(void *priv, char *alpha2) 3456 { 3457 struct i802_bss *bss = priv; 3458 struct wpa_driver_nl80211_data *drv = bss->drv; 3459 struct nl_msg *msg; 3460 int ret; 3461 3462 msg = nlmsg_alloc(); 3463 if (!msg) 3464 return -ENOMEM; 3465 3466 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 3467 alpha2[0] = '\0'; 3468 ret = send_and_recv_msgs(drv, msg, nl80211_get_country, alpha2); 3469 if (!alpha2[0]) 3470 ret = -1; 3471 3472 return ret; 3473 } 3474 3475 3476 static int protocol_feature_handler(struct nl_msg *msg, void *arg) 3477 { 3478 u32 *feat = arg; 3479 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 3480 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3481 3482 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3483 genlmsg_attrlen(gnlh, 0), NULL); 3484 3485 if (tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]) 3486 *feat = nla_get_u32(tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]); 3487 3488 return NL_SKIP; 3489 } 3490 3491 3492 static u32 get_nl80211_protocol_features(struct wpa_driver_nl80211_data *drv) 3493 { 3494 u32 feat = 0; 3495 struct nl_msg *msg; 3496 3497 msg = nlmsg_alloc(); 3498 if (!msg) 3499 goto nla_put_failure; 3500 3501 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_PROTOCOL_FEATURES); 3502 if (send_and_recv_msgs(drv, msg, protocol_feature_handler, &feat) == 0) 3503 return feat; 3504 3505 msg = NULL; 3506 nla_put_failure: 3507 nlmsg_free(msg); 3508 return 0; 3509 } 3510 3511 3512 struct wiphy_info_data { 3513 struct wpa_driver_nl80211_data *drv; 3514 struct wpa_driver_capa *capa; 3515 3516 unsigned int num_multichan_concurrent; 3517 3518 unsigned int error:1; 3519 unsigned int device_ap_sme:1; 3520 unsigned int poll_command_supported:1; 3521 unsigned int data_tx_status:1; 3522 unsigned int monitor_supported:1; 3523 unsigned int auth_supported:1; 3524 unsigned int connect_supported:1; 3525 unsigned int p2p_go_supported:1; 3526 unsigned int p2p_client_supported:1; 3527 unsigned int p2p_concurrent:1; 3528 unsigned int channel_switch_supported:1; 3529 unsigned int set_qos_map_supported:1; 3530 unsigned int have_low_prio_scan:1; 3531 }; 3532 3533 3534 static unsigned int probe_resp_offload_support(int supp_protocols) 3535 { 3536 unsigned int prot = 0; 3537 3538 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS) 3539 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS; 3540 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2) 3541 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2; 3542 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P) 3543 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P; 3544 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U) 3545 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING; 3546 3547 return prot; 3548 } 3549 3550 3551 static void wiphy_info_supported_iftypes(struct wiphy_info_data *info, 3552 struct nlattr *tb) 3553 { 3554 struct nlattr *nl_mode; 3555 int i; 3556 3557 if (tb == NULL) 3558 return; 3559 3560 nla_for_each_nested(nl_mode, tb, i) { 3561 switch (nla_type(nl_mode)) { 3562 case NL80211_IFTYPE_AP: 3563 info->capa->flags |= WPA_DRIVER_FLAGS_AP; 3564 break; 3565 case NL80211_IFTYPE_ADHOC: 3566 info->capa->flags |= WPA_DRIVER_FLAGS_IBSS; 3567 break; 3568 case NL80211_IFTYPE_P2P_DEVICE: 3569 info->capa->flags |= 3570 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 3571 break; 3572 case NL80211_IFTYPE_P2P_GO: 3573 info->p2p_go_supported = 1; 3574 break; 3575 case NL80211_IFTYPE_P2P_CLIENT: 3576 info->p2p_client_supported = 1; 3577 break; 3578 case NL80211_IFTYPE_MONITOR: 3579 info->monitor_supported = 1; 3580 break; 3581 } 3582 } 3583 } 3584 3585 3586 static int wiphy_info_iface_comb_process(struct wiphy_info_data *info, 3587 struct nlattr *nl_combi) 3588 { 3589 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB]; 3590 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT]; 3591 struct nlattr *nl_limit, *nl_mode; 3592 int err, rem_limit, rem_mode; 3593 int combination_has_p2p = 0, combination_has_mgd = 0; 3594 static struct nla_policy 3595 iface_combination_policy[NUM_NL80211_IFACE_COMB] = { 3596 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED }, 3597 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 }, 3598 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG }, 3599 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 }, 3600 [NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 }, 3601 }, 3602 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = { 3603 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED }, 3604 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 }, 3605 }; 3606 3607 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB, 3608 nl_combi, iface_combination_policy); 3609 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] || 3610 !tb_comb[NL80211_IFACE_COMB_MAXNUM] || 3611 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) 3612 return 0; /* broken combination */ 3613 3614 if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS]) 3615 info->capa->flags |= WPA_DRIVER_FLAGS_RADAR; 3616 3617 nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS], 3618 rem_limit) { 3619 err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT, 3620 nl_limit, iface_limit_policy); 3621 if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES]) 3622 return 0; /* broken combination */ 3623 3624 nla_for_each_nested(nl_mode, 3625 tb_limit[NL80211_IFACE_LIMIT_TYPES], 3626 rem_mode) { 3627 int ift = nla_type(nl_mode); 3628 if (ift == NL80211_IFTYPE_P2P_GO || 3629 ift == NL80211_IFTYPE_P2P_CLIENT) 3630 combination_has_p2p = 1; 3631 if (ift == NL80211_IFTYPE_STATION) 3632 combination_has_mgd = 1; 3633 } 3634 if (combination_has_p2p && combination_has_mgd) 3635 break; 3636 } 3637 3638 if (combination_has_p2p && combination_has_mgd) { 3639 unsigned int num_channels = 3640 nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]); 3641 3642 info->p2p_concurrent = 1; 3643 if (info->num_multichan_concurrent < num_channels) 3644 info->num_multichan_concurrent = num_channels; 3645 } 3646 3647 return 0; 3648 } 3649 3650 3651 static void wiphy_info_iface_comb(struct wiphy_info_data *info, 3652 struct nlattr *tb) 3653 { 3654 struct nlattr *nl_combi; 3655 int rem_combi; 3656 3657 if (tb == NULL) 3658 return; 3659 3660 nla_for_each_nested(nl_combi, tb, rem_combi) { 3661 if (wiphy_info_iface_comb_process(info, nl_combi) > 0) 3662 break; 3663 } 3664 } 3665 3666 3667 static void wiphy_info_supp_cmds(struct wiphy_info_data *info, 3668 struct nlattr *tb) 3669 { 3670 struct nlattr *nl_cmd; 3671 int i; 3672 3673 if (tb == NULL) 3674 return; 3675 3676 nla_for_each_nested(nl_cmd, tb, i) { 3677 switch (nla_get_u32(nl_cmd)) { 3678 case NL80211_CMD_AUTHENTICATE: 3679 info->auth_supported = 1; 3680 break; 3681 case NL80211_CMD_CONNECT: 3682 info->connect_supported = 1; 3683 break; 3684 case NL80211_CMD_START_SCHED_SCAN: 3685 info->capa->sched_scan_supported = 1; 3686 break; 3687 case NL80211_CMD_PROBE_CLIENT: 3688 info->poll_command_supported = 1; 3689 break; 3690 case NL80211_CMD_CHANNEL_SWITCH: 3691 info->channel_switch_supported = 1; 3692 break; 3693 case NL80211_CMD_SET_QOS_MAP: 3694 info->set_qos_map_supported = 1; 3695 break; 3696 } 3697 } 3698 } 3699 3700 3701 static void wiphy_info_cipher_suites(struct wiphy_info_data *info, 3702 struct nlattr *tb) 3703 { 3704 int i, num; 3705 u32 *ciphers; 3706 3707 if (tb == NULL) 3708 return; 3709 3710 num = nla_len(tb) / sizeof(u32); 3711 ciphers = nla_data(tb); 3712 for (i = 0; i < num; i++) { 3713 u32 c = ciphers[i]; 3714 3715 wpa_printf(MSG_DEBUG, "nl80211: Supported cipher %02x-%02x-%02x:%d", 3716 c >> 24, (c >> 16) & 0xff, 3717 (c >> 8) & 0xff, c & 0xff); 3718 switch (c) { 3719 case WLAN_CIPHER_SUITE_CCMP_256: 3720 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP_256; 3721 break; 3722 case WLAN_CIPHER_SUITE_GCMP_256: 3723 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP_256; 3724 break; 3725 case WLAN_CIPHER_SUITE_CCMP: 3726 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP; 3727 break; 3728 case WLAN_CIPHER_SUITE_GCMP: 3729 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP; 3730 break; 3731 case WLAN_CIPHER_SUITE_TKIP: 3732 info->capa->enc |= WPA_DRIVER_CAPA_ENC_TKIP; 3733 break; 3734 case WLAN_CIPHER_SUITE_WEP104: 3735 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP104; 3736 break; 3737 case WLAN_CIPHER_SUITE_WEP40: 3738 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP40; 3739 break; 3740 case WLAN_CIPHER_SUITE_AES_CMAC: 3741 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP; 3742 break; 3743 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 3744 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_128; 3745 break; 3746 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 3747 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_256; 3748 break; 3749 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 3750 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_CMAC_256; 3751 break; 3752 case WLAN_CIPHER_SUITE_NO_GROUP_ADDR: 3753 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GTK_NOT_USED; 3754 break; 3755 } 3756 } 3757 } 3758 3759 3760 static void wiphy_info_max_roc(struct wpa_driver_capa *capa, 3761 struct nlattr *tb) 3762 { 3763 if (tb) 3764 capa->max_remain_on_chan = nla_get_u32(tb); 3765 } 3766 3767 3768 static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls, 3769 struct nlattr *ext_setup) 3770 { 3771 if (tdls == NULL) 3772 return; 3773 3774 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported"); 3775 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT; 3776 3777 if (ext_setup) { 3778 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup"); 3779 capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP; 3780 } 3781 } 3782 3783 3784 static void wiphy_info_feature_flags(struct wiphy_info_data *info, 3785 struct nlattr *tb) 3786 { 3787 u32 flags; 3788 struct wpa_driver_capa *capa = info->capa; 3789 3790 if (tb == NULL) 3791 return; 3792 3793 flags = nla_get_u32(tb); 3794 3795 if (flags & NL80211_FEATURE_SK_TX_STATUS) 3796 info->data_tx_status = 1; 3797 3798 if (flags & NL80211_FEATURE_INACTIVITY_TIMER) 3799 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER; 3800 3801 if (flags & NL80211_FEATURE_SAE) 3802 capa->flags |= WPA_DRIVER_FLAGS_SAE; 3803 3804 if (flags & NL80211_FEATURE_NEED_OBSS_SCAN) 3805 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN; 3806 3807 if (flags & NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE) 3808 capa->flags |= WPA_DRIVER_FLAGS_HT_2040_COEX; 3809 3810 if (flags & NL80211_FEATURE_LOW_PRIORITY_SCAN) 3811 info->have_low_prio_scan = 1; 3812 } 3813 3814 3815 static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa, 3816 struct nlattr *tb) 3817 { 3818 u32 protocols; 3819 3820 if (tb == NULL) 3821 return; 3822 3823 protocols = nla_get_u32(tb); 3824 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP " 3825 "mode"); 3826 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD; 3827 capa->probe_resp_offloads = probe_resp_offload_support(protocols); 3828 } 3829 3830 3831 static void wiphy_info_wowlan_triggers(struct wpa_driver_capa *capa, 3832 struct nlattr *tb) 3833 { 3834 struct nlattr *triggers[MAX_NL80211_WOWLAN_TRIG + 1]; 3835 3836 if (tb == NULL) 3837 return; 3838 3839 if (nla_parse_nested(triggers, MAX_NL80211_WOWLAN_TRIG, 3840 tb, NULL)) 3841 return; 3842 3843 if (triggers[NL80211_WOWLAN_TRIG_ANY]) 3844 capa->wowlan_triggers.any = 1; 3845 if (triggers[NL80211_WOWLAN_TRIG_DISCONNECT]) 3846 capa->wowlan_triggers.disconnect = 1; 3847 if (triggers[NL80211_WOWLAN_TRIG_MAGIC_PKT]) 3848 capa->wowlan_triggers.magic_pkt = 1; 3849 if (triggers[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) 3850 capa->wowlan_triggers.gtk_rekey_failure = 1; 3851 if (triggers[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) 3852 capa->wowlan_triggers.eap_identity_req = 1; 3853 if (triggers[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) 3854 capa->wowlan_triggers.four_way_handshake = 1; 3855 if (triggers[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) 3856 capa->wowlan_triggers.rfkill_release = 1; 3857 } 3858 3859 3860 static int wiphy_info_handler(struct nl_msg *msg, void *arg) 3861 { 3862 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3863 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3864 struct wiphy_info_data *info = arg; 3865 struct wpa_driver_capa *capa = info->capa; 3866 struct wpa_driver_nl80211_data *drv = info->drv; 3867 3868 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3869 genlmsg_attrlen(gnlh, 0), NULL); 3870 3871 if (tb[NL80211_ATTR_WIPHY_NAME]) 3872 os_strlcpy(drv->phyname, 3873 nla_get_string(tb[NL80211_ATTR_WIPHY_NAME]), 3874 sizeof(drv->phyname)); 3875 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]) 3876 capa->max_scan_ssids = 3877 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]); 3878 3879 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]) 3880 capa->max_sched_scan_ssids = 3881 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]); 3882 3883 if (tb[NL80211_ATTR_MAX_MATCH_SETS]) 3884 capa->max_match_sets = 3885 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]); 3886 3887 if (tb[NL80211_ATTR_MAC_ACL_MAX]) 3888 capa->max_acl_mac_addrs = 3889 nla_get_u8(tb[NL80211_ATTR_MAC_ACL_MAX]); 3890 3891 wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]); 3892 wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]); 3893 wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]); 3894 wiphy_info_cipher_suites(info, tb[NL80211_ATTR_CIPHER_SUITES]); 3895 3896 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) { 3897 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based " 3898 "off-channel TX"); 3899 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX; 3900 } 3901 3902 if (tb[NL80211_ATTR_ROAM_SUPPORT]) { 3903 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming"); 3904 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION; 3905 } 3906 3907 wiphy_info_max_roc(capa, 3908 tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]); 3909 3910 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD]) 3911 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD; 3912 3913 wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT], 3914 tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]); 3915 3916 if (tb[NL80211_ATTR_DEVICE_AP_SME]) 3917 info->device_ap_sme = 1; 3918 3919 wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]); 3920 wiphy_info_probe_resp_offload(capa, 3921 tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]); 3922 3923 if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] && 3924 drv->extended_capa == NULL) { 3925 drv->extended_capa = 3926 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3927 if (drv->extended_capa) { 3928 os_memcpy(drv->extended_capa, 3929 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 3930 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3931 drv->extended_capa_len = 3932 nla_len(tb[NL80211_ATTR_EXT_CAPA]); 3933 } 3934 drv->extended_capa_mask = 3935 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3936 if (drv->extended_capa_mask) { 3937 os_memcpy(drv->extended_capa_mask, 3938 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 3939 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3940 } else { 3941 os_free(drv->extended_capa); 3942 drv->extended_capa = NULL; 3943 drv->extended_capa_len = 0; 3944 } 3945 } 3946 3947 if (tb[NL80211_ATTR_VENDOR_DATA]) { 3948 struct nlattr *nl; 3949 int rem; 3950 3951 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_DATA], rem) { 3952 struct nl80211_vendor_cmd_info *vinfo; 3953 if (nla_len(nl) != sizeof(*vinfo)) { 3954 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info"); 3955 continue; 3956 } 3957 vinfo = nla_data(nl); 3958 switch (vinfo->subcmd) { 3959 case QCA_NL80211_VENDOR_SUBCMD_ROAMING: 3960 drv->roaming_vendor_cmd_avail = 1; 3961 break; 3962 case QCA_NL80211_VENDOR_SUBCMD_DFS_CAPABILITY: 3963 drv->dfs_vendor_cmd_avail = 1; 3964 break; 3965 } 3966 3967 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor command: vendor_id=0x%x subcmd=%u", 3968 vinfo->vendor_id, vinfo->subcmd); 3969 } 3970 } 3971 3972 if (tb[NL80211_ATTR_VENDOR_EVENTS]) { 3973 struct nlattr *nl; 3974 int rem; 3975 3976 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_EVENTS], rem) { 3977 struct nl80211_vendor_cmd_info *vinfo; 3978 if (nla_len(nl) != sizeof(*vinfo)) { 3979 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info"); 3980 continue; 3981 } 3982 vinfo = nla_data(nl); 3983 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor event: vendor_id=0x%x subcmd=%u", 3984 vinfo->vendor_id, vinfo->subcmd); 3985 } 3986 } 3987 3988 wiphy_info_wowlan_triggers(capa, 3989 tb[NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED]); 3990 3991 if (tb[NL80211_ATTR_MAX_AP_ASSOC_STA]) 3992 capa->max_stations = 3993 nla_get_u32(tb[NL80211_ATTR_MAX_AP_ASSOC_STA]); 3994 3995 return NL_SKIP; 3996 } 3997 3998 3999 static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv, 4000 struct wiphy_info_data *info) 4001 { 4002 u32 feat; 4003 struct nl_msg *msg; 4004 4005 os_memset(info, 0, sizeof(*info)); 4006 info->capa = &drv->capa; 4007 info->drv = drv; 4008 4009 msg = nlmsg_alloc(); 4010 if (!msg) 4011 return -1; 4012 4013 feat = get_nl80211_protocol_features(drv); 4014 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 4015 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 4016 else 4017 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 4018 4019 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 4020 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 4021 goto nla_put_failure; 4022 4023 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info)) 4024 return -1; 4025 4026 if (info->auth_supported) 4027 drv->capa.flags |= WPA_DRIVER_FLAGS_SME; 4028 else if (!info->connect_supported) { 4029 wpa_printf(MSG_INFO, "nl80211: Driver does not support " 4030 "authentication/association or connect commands"); 4031 info->error = 1; 4032 } 4033 4034 if (info->p2p_go_supported && info->p2p_client_supported) 4035 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE; 4036 if (info->p2p_concurrent) { 4037 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 4038 "interface (driver advertised support)"); 4039 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 4040 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 4041 } 4042 if (info->num_multichan_concurrent > 1) { 4043 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel " 4044 "concurrent (driver advertised support)"); 4045 drv->capa.num_multichan_concurrent = 4046 info->num_multichan_concurrent; 4047 } 4048 4049 /* default to 5000 since early versions of mac80211 don't set it */ 4050 if (!drv->capa.max_remain_on_chan) 4051 drv->capa.max_remain_on_chan = 5000; 4052 4053 if (info->channel_switch_supported) 4054 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_CSA; 4055 4056 return 0; 4057 nla_put_failure: 4058 nlmsg_free(msg); 4059 return -1; 4060 } 4061 4062 4063 static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv) 4064 { 4065 struct wiphy_info_data info; 4066 if (wpa_driver_nl80211_get_info(drv, &info)) 4067 return -1; 4068 4069 if (info.error) 4070 return -1; 4071 4072 drv->has_capability = 1; 4073 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA | 4074 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK | 4075 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 | 4076 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK; 4077 drv->capa.auth = WPA_DRIVER_AUTH_OPEN | 4078 WPA_DRIVER_AUTH_SHARED | 4079 WPA_DRIVER_AUTH_LEAP; 4080 4081 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES; 4082 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE; 4083 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 4084 4085 /* 4086 * As all cfg80211 drivers must support cases where the AP interface is 4087 * removed without the knowledge of wpa_supplicant/hostapd, e.g., in 4088 * case that the user space daemon has crashed, they must be able to 4089 * cleanup all stations and key entries in the AP tear down flow. Thus, 4090 * this flag can/should always be set for cfg80211 drivers. 4091 */ 4092 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT; 4093 4094 if (!info.device_ap_sme) { 4095 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS; 4096 4097 /* 4098 * No AP SME is currently assumed to also indicate no AP MLME 4099 * in the driver/firmware. 4100 */ 4101 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME; 4102 } 4103 4104 drv->device_ap_sme = info.device_ap_sme; 4105 drv->poll_command_supported = info.poll_command_supported; 4106 drv->data_tx_status = info.data_tx_status; 4107 if (info.set_qos_map_supported) 4108 drv->capa.flags |= WPA_DRIVER_FLAGS_QOS_MAPPING; 4109 drv->have_low_prio_scan = info.have_low_prio_scan; 4110 4111 /* 4112 * If poll command and tx status are supported, mac80211 is new enough 4113 * to have everything we need to not need monitor interfaces. 4114 */ 4115 drv->use_monitor = !info.poll_command_supported || !info.data_tx_status; 4116 4117 if (drv->device_ap_sme && drv->use_monitor) { 4118 /* 4119 * Non-mac80211 drivers may not support monitor interface. 4120 * Make sure we do not get stuck with incorrect capability here 4121 * by explicitly testing this. 4122 */ 4123 if (!info.monitor_supported) { 4124 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor " 4125 "with device_ap_sme since no monitor mode " 4126 "support detected"); 4127 drv->use_monitor = 0; 4128 } 4129 } 4130 4131 /* 4132 * If we aren't going to use monitor interfaces, but the 4133 * driver doesn't support data TX status, we won't get TX 4134 * status for EAPOL frames. 4135 */ 4136 if (!drv->use_monitor && !info.data_tx_status) 4137 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 4138 4139 return 0; 4140 } 4141 4142 4143 #ifdef ANDROID 4144 static int android_genl_ctrl_resolve(struct nl_handle *handle, 4145 const char *name) 4146 { 4147 /* 4148 * Android ICS has very minimal genl_ctrl_resolve() implementation, so 4149 * need to work around that. 4150 */ 4151 struct nl_cache *cache = NULL; 4152 struct genl_family *nl80211 = NULL; 4153 int id = -1; 4154 4155 if (genl_ctrl_alloc_cache(handle, &cache) < 0) { 4156 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic " 4157 "netlink cache"); 4158 goto fail; 4159 } 4160 4161 nl80211 = genl_ctrl_search_by_name(cache, name); 4162 if (nl80211 == NULL) 4163 goto fail; 4164 4165 id = genl_family_get_id(nl80211); 4166 4167 fail: 4168 if (nl80211) 4169 genl_family_put(nl80211); 4170 if (cache) 4171 nl_cache_free(cache); 4172 4173 return id; 4174 } 4175 #define genl_ctrl_resolve android_genl_ctrl_resolve 4176 #endif /* ANDROID */ 4177 4178 4179 static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global) 4180 { 4181 int ret; 4182 4183 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 4184 if (global->nl_cb == NULL) { 4185 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " 4186 "callbacks"); 4187 return -1; 4188 } 4189 4190 global->nl = nl_create_handle(global->nl_cb, "nl"); 4191 if (global->nl == NULL) 4192 goto err; 4193 4194 global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211"); 4195 if (global->nl80211_id < 0) { 4196 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not " 4197 "found"); 4198 goto err; 4199 } 4200 4201 global->nl_event = nl_create_handle(global->nl_cb, "event"); 4202 if (global->nl_event == NULL) 4203 goto err; 4204 4205 ret = nl_get_multicast_id(global, "nl80211", "scan"); 4206 if (ret >= 0) 4207 ret = nl_socket_add_membership(global->nl_event, ret); 4208 if (ret < 0) { 4209 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 4210 "membership for scan events: %d (%s)", 4211 ret, strerror(-ret)); 4212 goto err; 4213 } 4214 4215 ret = nl_get_multicast_id(global, "nl80211", "mlme"); 4216 if (ret >= 0) 4217 ret = nl_socket_add_membership(global->nl_event, ret); 4218 if (ret < 0) { 4219 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 4220 "membership for mlme events: %d (%s)", 4221 ret, strerror(-ret)); 4222 goto err; 4223 } 4224 4225 ret = nl_get_multicast_id(global, "nl80211", "regulatory"); 4226 if (ret >= 0) 4227 ret = nl_socket_add_membership(global->nl_event, ret); 4228 if (ret < 0) { 4229 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " 4230 "membership for regulatory events: %d (%s)", 4231 ret, strerror(-ret)); 4232 /* Continue without regulatory events */ 4233 } 4234 4235 ret = nl_get_multicast_id(global, "nl80211", "vendor"); 4236 if (ret >= 0) 4237 ret = nl_socket_add_membership(global->nl_event, ret); 4238 if (ret < 0) { 4239 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " 4240 "membership for vendor events: %d (%s)", 4241 ret, strerror(-ret)); 4242 /* Continue without vendor events */ 4243 } 4244 4245 nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 4246 no_seq_check, NULL); 4247 nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 4248 process_global_event, global); 4249 4250 nl80211_register_eloop_read(&global->nl_event, 4251 wpa_driver_nl80211_event_receive, 4252 global->nl_cb); 4253 4254 return 0; 4255 4256 err: 4257 nl_destroy_handles(&global->nl_event); 4258 nl_destroy_handles(&global->nl); 4259 nl_cb_put(global->nl_cb); 4260 global->nl_cb = NULL; 4261 return -1; 4262 } 4263 4264 4265 static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv) 4266 { 4267 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 4268 if (!drv->nl_cb) { 4269 wpa_printf(MSG_ERROR, "nl80211: Failed to alloc cb struct"); 4270 return -1; 4271 } 4272 4273 nl_cb_set(drv->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 4274 no_seq_check, NULL); 4275 nl_cb_set(drv->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 4276 process_drv_event, drv); 4277 4278 return 0; 4279 } 4280 4281 4282 static void wpa_driver_nl80211_rfkill_blocked(void *ctx) 4283 { 4284 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked"); 4285 /* 4286 * This may be for any interface; use ifdown event to disable 4287 * interface. 4288 */ 4289 } 4290 4291 4292 static void wpa_driver_nl80211_rfkill_unblocked(void *ctx) 4293 { 4294 struct wpa_driver_nl80211_data *drv = ctx; 4295 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked"); 4296 if (i802_set_iface_flags(drv->first_bss, 1)) { 4297 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP " 4298 "after rfkill unblock"); 4299 return; 4300 } 4301 /* rtnetlink ifup handler will report interface as enabled */ 4302 } 4303 4304 4305 static void wpa_driver_nl80211_handle_eapol_tx_status(int sock, 4306 void *eloop_ctx, 4307 void *handle) 4308 { 4309 struct wpa_driver_nl80211_data *drv = eloop_ctx; 4310 u8 data[2048]; 4311 struct msghdr msg; 4312 struct iovec entry; 4313 u8 control[512]; 4314 struct cmsghdr *cmsg; 4315 int res, found_ee = 0, found_wifi = 0, acked = 0; 4316 union wpa_event_data event; 4317 4318 memset(&msg, 0, sizeof(msg)); 4319 msg.msg_iov = &entry; 4320 msg.msg_iovlen = 1; 4321 entry.iov_base = data; 4322 entry.iov_len = sizeof(data); 4323 msg.msg_control = &control; 4324 msg.msg_controllen = sizeof(control); 4325 4326 res = recvmsg(sock, &msg, MSG_ERRQUEUE); 4327 /* if error or not fitting 802.3 header, return */ 4328 if (res < 14) 4329 return; 4330 4331 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) 4332 { 4333 if (cmsg->cmsg_level == SOL_SOCKET && 4334 cmsg->cmsg_type == SCM_WIFI_STATUS) { 4335 int *ack; 4336 4337 found_wifi = 1; 4338 ack = (void *)CMSG_DATA(cmsg); 4339 acked = *ack; 4340 } 4341 4342 if (cmsg->cmsg_level == SOL_PACKET && 4343 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) { 4344 struct sock_extended_err *err = 4345 (struct sock_extended_err *)CMSG_DATA(cmsg); 4346 4347 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS) 4348 found_ee = 1; 4349 } 4350 } 4351 4352 if (!found_ee || !found_wifi) 4353 return; 4354 4355 memset(&event, 0, sizeof(event)); 4356 event.eapol_tx_status.dst = data; 4357 event.eapol_tx_status.data = data + 14; 4358 event.eapol_tx_status.data_len = res - 14; 4359 event.eapol_tx_status.ack = acked; 4360 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event); 4361 } 4362 4363 4364 static int nl80211_init_bss(struct i802_bss *bss) 4365 { 4366 bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 4367 if (!bss->nl_cb) 4368 return -1; 4369 4370 nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 4371 no_seq_check, NULL); 4372 nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 4373 process_bss_event, bss); 4374 4375 return 0; 4376 } 4377 4378 4379 static void nl80211_destroy_bss(struct i802_bss *bss) 4380 { 4381 nl_cb_put(bss->nl_cb); 4382 bss->nl_cb = NULL; 4383 } 4384 4385 4386 static void * wpa_driver_nl80211_drv_init(void *ctx, const char *ifname, 4387 void *global_priv, int hostapd, 4388 const u8 *set_addr) 4389 { 4390 struct wpa_driver_nl80211_data *drv; 4391 struct rfkill_config *rcfg; 4392 struct i802_bss *bss; 4393 4394 if (global_priv == NULL) 4395 return NULL; 4396 drv = os_zalloc(sizeof(*drv)); 4397 if (drv == NULL) 4398 return NULL; 4399 drv->global = global_priv; 4400 drv->ctx = ctx; 4401 drv->hostapd = !!hostapd; 4402 drv->eapol_sock = -1; 4403 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int); 4404 drv->if_indices = drv->default_if_indices; 4405 4406 drv->first_bss = os_zalloc(sizeof(*drv->first_bss)); 4407 if (!drv->first_bss) { 4408 os_free(drv); 4409 return NULL; 4410 } 4411 bss = drv->first_bss; 4412 bss->drv = drv; 4413 bss->ctx = ctx; 4414 4415 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname)); 4416 drv->monitor_ifidx = -1; 4417 drv->monitor_sock = -1; 4418 drv->eapol_tx_sock = -1; 4419 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 4420 4421 if (wpa_driver_nl80211_init_nl(drv)) { 4422 os_free(drv); 4423 return NULL; 4424 } 4425 4426 if (nl80211_init_bss(bss)) 4427 goto failed; 4428 4429 rcfg = os_zalloc(sizeof(*rcfg)); 4430 if (rcfg == NULL) 4431 goto failed; 4432 rcfg->ctx = drv; 4433 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname)); 4434 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked; 4435 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked; 4436 drv->rfkill = rfkill_init(rcfg); 4437 if (drv->rfkill == NULL) { 4438 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available"); 4439 os_free(rcfg); 4440 } 4441 4442 if (linux_iface_up(drv->global->ioctl_sock, ifname) > 0) 4443 drv->start_iface_up = 1; 4444 4445 if (wpa_driver_nl80211_finish_drv_init(drv, set_addr, 1)) 4446 goto failed; 4447 4448 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0); 4449 if (drv->eapol_tx_sock < 0) 4450 goto failed; 4451 4452 if (drv->data_tx_status) { 4453 int enabled = 1; 4454 4455 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS, 4456 &enabled, sizeof(enabled)) < 0) { 4457 wpa_printf(MSG_DEBUG, 4458 "nl80211: wifi status sockopt failed\n"); 4459 drv->data_tx_status = 0; 4460 if (!drv->use_monitor) 4461 drv->capa.flags &= 4462 ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 4463 } else { 4464 eloop_register_read_sock(drv->eapol_tx_sock, 4465 wpa_driver_nl80211_handle_eapol_tx_status, 4466 drv, NULL); 4467 } 4468 } 4469 4470 if (drv->global) { 4471 dl_list_add(&drv->global->interfaces, &drv->list); 4472 drv->in_interface_list = 1; 4473 } 4474 4475 return bss; 4476 4477 failed: 4478 wpa_driver_nl80211_deinit(bss); 4479 return NULL; 4480 } 4481 4482 4483 /** 4484 * wpa_driver_nl80211_init - Initialize nl80211 driver interface 4485 * @ctx: context to be used when calling wpa_supplicant functions, 4486 * e.g., wpa_supplicant_event() 4487 * @ifname: interface name, e.g., wlan0 4488 * @global_priv: private driver global data from global_init() 4489 * Returns: Pointer to private data, %NULL on failure 4490 */ 4491 static void * wpa_driver_nl80211_init(void *ctx, const char *ifname, 4492 void *global_priv) 4493 { 4494 return wpa_driver_nl80211_drv_init(ctx, ifname, global_priv, 0, NULL); 4495 } 4496 4497 4498 static int nl80211_register_frame(struct i802_bss *bss, 4499 struct nl_handle *nl_handle, 4500 u16 type, const u8 *match, size_t match_len) 4501 { 4502 struct wpa_driver_nl80211_data *drv = bss->drv; 4503 struct nl_msg *msg; 4504 int ret = -1; 4505 char buf[30]; 4506 4507 msg = nlmsg_alloc(); 4508 if (!msg) 4509 return -1; 4510 4511 buf[0] = '\0'; 4512 wpa_snprintf_hex(buf, sizeof(buf), match, match_len); 4513 wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x (%s) nl_handle=%p match=%s", 4514 type, fc2str(type), nl_handle, buf); 4515 4516 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION); 4517 4518 if (nl80211_set_iface_id(msg, bss) < 0) 4519 goto nla_put_failure; 4520 4521 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type); 4522 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match); 4523 4524 ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL); 4525 msg = NULL; 4526 if (ret) { 4527 wpa_printf(MSG_DEBUG, "nl80211: Register frame command " 4528 "failed (type=%u): ret=%d (%s)", 4529 type, ret, strerror(-ret)); 4530 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", 4531 match, match_len); 4532 goto nla_put_failure; 4533 } 4534 ret = 0; 4535 nla_put_failure: 4536 nlmsg_free(msg); 4537 return ret; 4538 } 4539 4540 4541 static int nl80211_alloc_mgmt_handle(struct i802_bss *bss) 4542 { 4543 struct wpa_driver_nl80211_data *drv = bss->drv; 4544 4545 if (bss->nl_mgmt) { 4546 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting " 4547 "already on! (nl_mgmt=%p)", bss->nl_mgmt); 4548 return -1; 4549 } 4550 4551 bss->nl_mgmt = nl_create_handle(drv->nl_cb, "mgmt"); 4552 if (bss->nl_mgmt == NULL) 4553 return -1; 4554 4555 return 0; 4556 } 4557 4558 4559 static void nl80211_mgmt_handle_register_eloop(struct i802_bss *bss) 4560 { 4561 nl80211_register_eloop_read(&bss->nl_mgmt, 4562 wpa_driver_nl80211_event_receive, 4563 bss->nl_cb); 4564 } 4565 4566 4567 static int nl80211_register_action_frame(struct i802_bss *bss, 4568 const u8 *match, size_t match_len) 4569 { 4570 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4); 4571 return nl80211_register_frame(bss, bss->nl_mgmt, 4572 type, match, match_len); 4573 } 4574 4575 4576 static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss) 4577 { 4578 struct wpa_driver_nl80211_data *drv = bss->drv; 4579 int ret = 0; 4580 4581 if (nl80211_alloc_mgmt_handle(bss)) 4582 return -1; 4583 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP " 4584 "handle %p", bss->nl_mgmt); 4585 4586 if (drv->nlmode == NL80211_IFTYPE_ADHOC) { 4587 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_AUTH << 4); 4588 4589 /* register for any AUTH message */ 4590 nl80211_register_frame(bss, bss->nl_mgmt, type, NULL, 0); 4591 } 4592 4593 #ifdef CONFIG_INTERWORKING 4594 /* QoS Map Configure */ 4595 if (nl80211_register_action_frame(bss, (u8 *) "\x01\x04", 2) < 0) 4596 ret = -1; 4597 #endif /* CONFIG_INTERWORKING */ 4598 #if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING) 4599 /* GAS Initial Request */ 4600 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0) 4601 ret = -1; 4602 /* GAS Initial Response */ 4603 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0) 4604 ret = -1; 4605 /* GAS Comeback Request */ 4606 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0) 4607 ret = -1; 4608 /* GAS Comeback Response */ 4609 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0) 4610 ret = -1; 4611 /* Protected GAS Initial Request */ 4612 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0a", 2) < 0) 4613 ret = -1; 4614 /* Protected GAS Initial Response */ 4615 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0b", 2) < 0) 4616 ret = -1; 4617 /* Protected GAS Comeback Request */ 4618 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0c", 2) < 0) 4619 ret = -1; 4620 /* Protected GAS Comeback Response */ 4621 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0d", 2) < 0) 4622 ret = -1; 4623 #endif /* CONFIG_P2P || CONFIG_INTERWORKING */ 4624 #ifdef CONFIG_P2P 4625 /* P2P Public Action */ 4626 if (nl80211_register_action_frame(bss, 4627 (u8 *) "\x04\x09\x50\x6f\x9a\x09", 4628 6) < 0) 4629 ret = -1; 4630 /* P2P Action */ 4631 if (nl80211_register_action_frame(bss, 4632 (u8 *) "\x7f\x50\x6f\x9a\x09", 4633 5) < 0) 4634 ret = -1; 4635 #endif /* CONFIG_P2P */ 4636 #ifdef CONFIG_IEEE80211W 4637 /* SA Query Response */ 4638 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0) 4639 ret = -1; 4640 #endif /* CONFIG_IEEE80211W */ 4641 #ifdef CONFIG_TDLS 4642 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) { 4643 /* TDLS Discovery Response */ 4644 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) < 4645 0) 4646 ret = -1; 4647 } 4648 #endif /* CONFIG_TDLS */ 4649 4650 /* FT Action frames */ 4651 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0) 4652 ret = -1; 4653 else 4654 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT | 4655 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK; 4656 4657 /* WNM - BSS Transition Management Request */ 4658 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0) 4659 ret = -1; 4660 /* WNM-Sleep Mode Response */ 4661 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x11", 2) < 0) 4662 ret = -1; 4663 4664 #ifdef CONFIG_HS20 4665 /* WNM-Notification */ 4666 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x1a", 2) < 0) 4667 ret = -1; 4668 #endif /* CONFIG_HS20 */ 4669 4670 nl80211_mgmt_handle_register_eloop(bss); 4671 4672 return ret; 4673 } 4674 4675 4676 static int nl80211_register_spurious_class3(struct i802_bss *bss) 4677 { 4678 struct wpa_driver_nl80211_data *drv = bss->drv; 4679 struct nl_msg *msg; 4680 int ret = -1; 4681 4682 msg = nlmsg_alloc(); 4683 if (!msg) 4684 return -1; 4685 4686 nl80211_cmd(drv, msg, 0, NL80211_CMD_UNEXPECTED_FRAME); 4687 4688 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 4689 4690 ret = send_and_recv(drv->global, bss->nl_mgmt, msg, NULL, NULL); 4691 msg = NULL; 4692 if (ret) { 4693 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 " 4694 "failed: ret=%d (%s)", 4695 ret, strerror(-ret)); 4696 goto nla_put_failure; 4697 } 4698 ret = 0; 4699 nla_put_failure: 4700 nlmsg_free(msg); 4701 return ret; 4702 } 4703 4704 4705 static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss) 4706 { 4707 static const int stypes[] = { 4708 WLAN_FC_STYPE_AUTH, 4709 WLAN_FC_STYPE_ASSOC_REQ, 4710 WLAN_FC_STYPE_REASSOC_REQ, 4711 WLAN_FC_STYPE_DISASSOC, 4712 WLAN_FC_STYPE_DEAUTH, 4713 WLAN_FC_STYPE_ACTION, 4714 WLAN_FC_STYPE_PROBE_REQ, 4715 /* Beacon doesn't work as mac80211 doesn't currently allow 4716 * it, but it wouldn't really be the right thing anyway as 4717 * it isn't per interface ... maybe just dump the scan 4718 * results periodically for OLBC? 4719 */ 4720 /* WLAN_FC_STYPE_BEACON, */ 4721 }; 4722 unsigned int i; 4723 4724 if (nl80211_alloc_mgmt_handle(bss)) 4725 return -1; 4726 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 4727 "handle %p", bss->nl_mgmt); 4728 4729 for (i = 0; i < ARRAY_SIZE(stypes); i++) { 4730 if (nl80211_register_frame(bss, bss->nl_mgmt, 4731 (WLAN_FC_TYPE_MGMT << 2) | 4732 (stypes[i] << 4), 4733 NULL, 0) < 0) { 4734 goto out_err; 4735 } 4736 } 4737 4738 if (nl80211_register_spurious_class3(bss)) 4739 goto out_err; 4740 4741 if (nl80211_get_wiphy_data_ap(bss) == NULL) 4742 goto out_err; 4743 4744 nl80211_mgmt_handle_register_eloop(bss); 4745 return 0; 4746 4747 out_err: 4748 nl_destroy_handles(&bss->nl_mgmt); 4749 return -1; 4750 } 4751 4752 4753 static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss) 4754 { 4755 if (nl80211_alloc_mgmt_handle(bss)) 4756 return -1; 4757 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 4758 "handle %p (device SME)", bss->nl_mgmt); 4759 4760 if (nl80211_register_frame(bss, bss->nl_mgmt, 4761 (WLAN_FC_TYPE_MGMT << 2) | 4762 (WLAN_FC_STYPE_ACTION << 4), 4763 NULL, 0) < 0) 4764 goto out_err; 4765 4766 nl80211_mgmt_handle_register_eloop(bss); 4767 return 0; 4768 4769 out_err: 4770 nl_destroy_handles(&bss->nl_mgmt); 4771 return -1; 4772 } 4773 4774 4775 static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason) 4776 { 4777 if (bss->nl_mgmt == NULL) 4778 return; 4779 wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p " 4780 "(%s)", bss->nl_mgmt, reason); 4781 nl80211_destroy_eloop_handle(&bss->nl_mgmt); 4782 4783 nl80211_put_wiphy_data_ap(bss); 4784 } 4785 4786 4787 static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx) 4788 { 4789 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL); 4790 } 4791 4792 4793 static void nl80211_del_p2pdev(struct i802_bss *bss) 4794 { 4795 struct wpa_driver_nl80211_data *drv = bss->drv; 4796 struct nl_msg *msg; 4797 int ret; 4798 4799 msg = nlmsg_alloc(); 4800 if (!msg) 4801 return; 4802 4803 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 4804 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 4805 4806 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4807 msg = NULL; 4808 4809 wpa_printf(MSG_DEBUG, "nl80211: Delete P2P Device %s (0x%llx): %s", 4810 bss->ifname, (long long unsigned int) bss->wdev_id, 4811 strerror(-ret)); 4812 4813 nla_put_failure: 4814 nlmsg_free(msg); 4815 } 4816 4817 4818 static int nl80211_set_p2pdev(struct i802_bss *bss, int start) 4819 { 4820 struct wpa_driver_nl80211_data *drv = bss->drv; 4821 struct nl_msg *msg; 4822 int ret = -1; 4823 4824 msg = nlmsg_alloc(); 4825 if (!msg) 4826 return -1; 4827 4828 if (start) 4829 nl80211_cmd(drv, msg, 0, NL80211_CMD_START_P2P_DEVICE); 4830 else 4831 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_P2P_DEVICE); 4832 4833 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 4834 4835 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4836 msg = NULL; 4837 4838 wpa_printf(MSG_DEBUG, "nl80211: %s P2P Device %s (0x%llx): %s", 4839 start ? "Start" : "Stop", 4840 bss->ifname, (long long unsigned int) bss->wdev_id, 4841 strerror(-ret)); 4842 4843 nla_put_failure: 4844 nlmsg_free(msg); 4845 return ret; 4846 } 4847 4848 4849 static int i802_set_iface_flags(struct i802_bss *bss, int up) 4850 { 4851 enum nl80211_iftype nlmode; 4852 4853 nlmode = nl80211_get_ifmode(bss); 4854 if (nlmode != NL80211_IFTYPE_P2P_DEVICE) { 4855 return linux_set_iface_flags(bss->drv->global->ioctl_sock, 4856 bss->ifname, up); 4857 } 4858 4859 /* P2P Device has start/stop which is equivalent */ 4860 return nl80211_set_p2pdev(bss, up); 4861 } 4862 4863 4864 static int 4865 wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv, 4866 const u8 *set_addr, int first) 4867 { 4868 struct i802_bss *bss = drv->first_bss; 4869 int send_rfkill_event = 0; 4870 enum nl80211_iftype nlmode; 4871 4872 drv->ifindex = if_nametoindex(bss->ifname); 4873 bss->ifindex = drv->ifindex; 4874 bss->wdev_id = drv->global->if_add_wdevid; 4875 bss->wdev_id_set = drv->global->if_add_wdevid_set; 4876 4877 bss->if_dynamic = drv->ifindex == drv->global->if_add_ifindex; 4878 bss->if_dynamic = bss->if_dynamic || drv->global->if_add_wdevid_set; 4879 drv->global->if_add_wdevid_set = 0; 4880 4881 if (!bss->if_dynamic && nl80211_get_ifmode(bss) == NL80211_IFTYPE_AP) 4882 bss->static_ap = 1; 4883 4884 if (wpa_driver_nl80211_capa(drv)) 4885 return -1; 4886 4887 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s", 4888 bss->ifname, drv->phyname); 4889 4890 if (set_addr && 4891 (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0) || 4892 linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 4893 set_addr))) 4894 return -1; 4895 4896 if (first && nl80211_get_ifmode(bss) == NL80211_IFTYPE_AP) 4897 drv->start_mode_ap = 1; 4898 4899 if (drv->hostapd || bss->static_ap) 4900 nlmode = NL80211_IFTYPE_AP; 4901 else if (bss->if_dynamic) 4902 nlmode = nl80211_get_ifmode(bss); 4903 else 4904 nlmode = NL80211_IFTYPE_STATION; 4905 4906 if (wpa_driver_nl80211_set_mode(bss, nlmode) < 0) { 4907 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver mode"); 4908 return -1; 4909 } 4910 4911 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) 4912 nl80211_get_macaddr(bss); 4913 4914 if (!rfkill_is_blocked(drv->rfkill)) { 4915 int ret = i802_set_iface_flags(bss, 1); 4916 if (ret) { 4917 wpa_printf(MSG_ERROR, "nl80211: Could not set " 4918 "interface '%s' UP", bss->ifname); 4919 return ret; 4920 } 4921 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) 4922 return ret; 4923 } else { 4924 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable " 4925 "interface '%s' due to rfkill", bss->ifname); 4926 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) 4927 return 0; 4928 drv->if_disabled = 1; 4929 send_rfkill_event = 1; 4930 } 4931 4932 if (!drv->hostapd) 4933 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 4934 1, IF_OPER_DORMANT); 4935 4936 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 4937 bss->addr)) 4938 return -1; 4939 os_memcpy(drv->perm_addr, bss->addr, ETH_ALEN); 4940 4941 if (send_rfkill_event) { 4942 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill, 4943 drv, drv->ctx); 4944 } 4945 4946 return 0; 4947 } 4948 4949 4950 static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv) 4951 { 4952 struct nl_msg *msg; 4953 4954 msg = nlmsg_alloc(); 4955 if (!msg) 4956 return -ENOMEM; 4957 4958 wpa_printf(MSG_DEBUG, "nl80211: Remove beacon (ifindex=%d)", 4959 drv->ifindex); 4960 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON); 4961 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4962 4963 return send_and_recv_msgs(drv, msg, NULL, NULL); 4964 nla_put_failure: 4965 nlmsg_free(msg); 4966 return -ENOBUFS; 4967 } 4968 4969 4970 /** 4971 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface 4972 * @bss: Pointer to private nl80211 data from wpa_driver_nl80211_init() 4973 * 4974 * Shut down driver interface and processing of driver events. Free 4975 * private data buffer if one was allocated in wpa_driver_nl80211_init(). 4976 */ 4977 static void wpa_driver_nl80211_deinit(struct i802_bss *bss) 4978 { 4979 struct wpa_driver_nl80211_data *drv = bss->drv; 4980 4981 bss->in_deinit = 1; 4982 if (drv->data_tx_status) 4983 eloop_unregister_read_sock(drv->eapol_tx_sock); 4984 if (drv->eapol_tx_sock >= 0) 4985 close(drv->eapol_tx_sock); 4986 4987 if (bss->nl_preq) 4988 wpa_driver_nl80211_probe_req_report(bss, 0); 4989 if (bss->added_if_into_bridge) { 4990 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 4991 bss->ifname) < 0) 4992 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 4993 "interface %s from bridge %s: %s", 4994 bss->ifname, bss->brname, strerror(errno)); 4995 if (drv->rtnl_sk) 4996 nl80211_handle_destroy(drv->rtnl_sk); 4997 } 4998 if (bss->added_bridge) { 4999 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 5000 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 5001 "bridge %s: %s", 5002 bss->brname, strerror(errno)); 5003 } 5004 5005 nl80211_remove_monitor_interface(drv); 5006 5007 if (is_ap_interface(drv->nlmode)) 5008 wpa_driver_nl80211_del_beacon(drv); 5009 5010 if (drv->eapol_sock >= 0) { 5011 eloop_unregister_read_sock(drv->eapol_sock); 5012 close(drv->eapol_sock); 5013 } 5014 5015 if (drv->if_indices != drv->default_if_indices) 5016 os_free(drv->if_indices); 5017 5018 if (drv->disabled_11b_rates) 5019 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 5020 5021 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0, 5022 IF_OPER_UP); 5023 eloop_cancel_timeout(wpa_driver_nl80211_send_rfkill, drv, drv->ctx); 5024 rfkill_deinit(drv->rfkill); 5025 5026 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 5027 5028 if (!drv->start_iface_up) 5029 (void) i802_set_iface_flags(bss, 0); 5030 5031 if (drv->addr_changed) { 5032 linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0); 5033 if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 5034 drv->perm_addr) < 0) { 5035 wpa_printf(MSG_DEBUG, 5036 "nl80211: Could not restore permanent MAC address"); 5037 } 5038 } 5039 5040 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) { 5041 if (!drv->hostapd || !drv->start_mode_ap) 5042 wpa_driver_nl80211_set_mode(bss, 5043 NL80211_IFTYPE_STATION); 5044 nl80211_mgmt_unsubscribe(bss, "deinit"); 5045 } else { 5046 nl80211_mgmt_unsubscribe(bss, "deinit"); 5047 nl80211_del_p2pdev(bss); 5048 } 5049 nl_cb_put(drv->nl_cb); 5050 5051 nl80211_destroy_bss(drv->first_bss); 5052 5053 os_free(drv->filter_ssids); 5054 5055 os_free(drv->auth_ie); 5056 5057 if (drv->in_interface_list) 5058 dl_list_del(&drv->list); 5059 5060 os_free(drv->extended_capa); 5061 os_free(drv->extended_capa_mask); 5062 os_free(drv->first_bss); 5063 os_free(drv); 5064 } 5065 5066 5067 /** 5068 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion 5069 * @eloop_ctx: Driver private data 5070 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init() 5071 * 5072 * This function can be used as registered timeout when starting a scan to 5073 * generate a scan completed event if the driver does not report this. 5074 */ 5075 static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx) 5076 { 5077 struct wpa_driver_nl80211_data *drv = eloop_ctx; 5078 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) { 5079 wpa_driver_nl80211_set_mode(drv->first_bss, 5080 drv->ap_scan_as_station); 5081 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 5082 } 5083 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results"); 5084 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL); 5085 } 5086 5087 5088 static struct nl_msg * 5089 nl80211_scan_common(struct wpa_driver_nl80211_data *drv, u8 cmd, 5090 struct wpa_driver_scan_params *params, u64 *wdev_id) 5091 { 5092 struct nl_msg *msg; 5093 size_t i; 5094 u32 scan_flags = 0; 5095 5096 msg = nlmsg_alloc(); 5097 if (!msg) 5098 return NULL; 5099 5100 nl80211_cmd(drv, msg, 0, cmd); 5101 5102 if (!wdev_id) 5103 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5104 else 5105 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, *wdev_id); 5106 5107 if (params->num_ssids) { 5108 struct nlattr *ssids; 5109 5110 ssids = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); 5111 if (ssids == NULL) 5112 goto fail; 5113 for (i = 0; i < params->num_ssids; i++) { 5114 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID", 5115 params->ssids[i].ssid, 5116 params->ssids[i].ssid_len); 5117 if (nla_put(msg, i + 1, params->ssids[i].ssid_len, 5118 params->ssids[i].ssid) < 0) 5119 goto fail; 5120 } 5121 nla_nest_end(msg, ssids); 5122 } 5123 5124 if (params->extra_ies) { 5125 wpa_hexdump(MSG_MSGDUMP, "nl80211: Scan extra IEs", 5126 params->extra_ies, params->extra_ies_len); 5127 if (nla_put(msg, NL80211_ATTR_IE, params->extra_ies_len, 5128 params->extra_ies) < 0) 5129 goto fail; 5130 } 5131 5132 if (params->freqs) { 5133 struct nlattr *freqs; 5134 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); 5135 if (freqs == NULL) 5136 goto fail; 5137 for (i = 0; params->freqs[i]; i++) { 5138 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u " 5139 "MHz", params->freqs[i]); 5140 if (nla_put_u32(msg, i + 1, params->freqs[i]) < 0) 5141 goto fail; 5142 } 5143 nla_nest_end(msg, freqs); 5144 } 5145 5146 os_free(drv->filter_ssids); 5147 drv->filter_ssids = params->filter_ssids; 5148 params->filter_ssids = NULL; 5149 drv->num_filter_ssids = params->num_filter_ssids; 5150 5151 if (params->only_new_results) { 5152 wpa_printf(MSG_DEBUG, "nl80211: Add NL80211_SCAN_FLAG_FLUSH"); 5153 scan_flags |= NL80211_SCAN_FLAG_FLUSH; 5154 } 5155 5156 if (params->low_priority && drv->have_low_prio_scan) { 5157 wpa_printf(MSG_DEBUG, 5158 "nl80211: Add NL80211_SCAN_FLAG_LOW_PRIORITY"); 5159 scan_flags |= NL80211_SCAN_FLAG_LOW_PRIORITY; 5160 } 5161 5162 if (scan_flags) 5163 NLA_PUT_U32(msg, NL80211_ATTR_SCAN_FLAGS, scan_flags); 5164 5165 return msg; 5166 5167 fail: 5168 nla_put_failure: 5169 nlmsg_free(msg); 5170 return NULL; 5171 } 5172 5173 5174 /** 5175 * wpa_driver_nl80211_scan - Request the driver to initiate scan 5176 * @bss: Pointer to private driver data from wpa_driver_nl80211_init() 5177 * @params: Scan parameters 5178 * Returns: 0 on success, -1 on failure 5179 */ 5180 static int wpa_driver_nl80211_scan(struct i802_bss *bss, 5181 struct wpa_driver_scan_params *params) 5182 { 5183 struct wpa_driver_nl80211_data *drv = bss->drv; 5184 int ret = -1, timeout; 5185 struct nl_msg *msg = NULL; 5186 5187 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: scan request"); 5188 drv->scan_for_auth = 0; 5189 5190 msg = nl80211_scan_common(drv, NL80211_CMD_TRIGGER_SCAN, params, 5191 bss->wdev_id_set ? &bss->wdev_id : NULL); 5192 if (!msg) 5193 return -1; 5194 5195 if (params->p2p_probe) { 5196 struct nlattr *rates; 5197 5198 wpa_printf(MSG_DEBUG, "nl80211: P2P probe - mask SuppRates"); 5199 5200 rates = nla_nest_start(msg, NL80211_ATTR_SCAN_SUPP_RATES); 5201 if (rates == NULL) 5202 goto nla_put_failure; 5203 5204 /* 5205 * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates 5206 * by masking out everything else apart from the OFDM rates 6, 5207 * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz 5208 * rates are left enabled. 5209 */ 5210 NLA_PUT(msg, NL80211_BAND_2GHZ, 8, 5211 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 5212 nla_nest_end(msg, rates); 5213 5214 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 5215 } 5216 5217 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5218 msg = NULL; 5219 if (ret) { 5220 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d " 5221 "(%s)", ret, strerror(-ret)); 5222 if (drv->hostapd && is_ap_interface(drv->nlmode)) { 5223 enum nl80211_iftype old_mode = drv->nlmode; 5224 5225 /* 5226 * mac80211 does not allow scan requests in AP mode, so 5227 * try to do this in station mode. 5228 */ 5229 if (wpa_driver_nl80211_set_mode( 5230 bss, NL80211_IFTYPE_STATION)) 5231 goto nla_put_failure; 5232 5233 if (wpa_driver_nl80211_scan(bss, params)) { 5234 wpa_driver_nl80211_set_mode(bss, drv->nlmode); 5235 goto nla_put_failure; 5236 } 5237 5238 /* Restore AP mode when processing scan results */ 5239 drv->ap_scan_as_station = old_mode; 5240 ret = 0; 5241 } else 5242 goto nla_put_failure; 5243 } 5244 5245 drv->scan_state = SCAN_REQUESTED; 5246 /* Not all drivers generate "scan completed" wireless event, so try to 5247 * read results after a timeout. */ 5248 timeout = 10; 5249 if (drv->scan_complete_events) { 5250 /* 5251 * The driver seems to deliver events to notify when scan is 5252 * complete, so use longer timeout to avoid race conditions 5253 * with scanning and following association request. 5254 */ 5255 timeout = 30; 5256 } 5257 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d " 5258 "seconds", ret, timeout); 5259 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 5260 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout, 5261 drv, drv->ctx); 5262 5263 nla_put_failure: 5264 nlmsg_free(msg); 5265 return ret; 5266 } 5267 5268 5269 /** 5270 * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan 5271 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 5272 * @params: Scan parameters 5273 * @interval: Interval between scan cycles in milliseconds 5274 * Returns: 0 on success, -1 on failure or if not supported 5275 */ 5276 static int wpa_driver_nl80211_sched_scan(void *priv, 5277 struct wpa_driver_scan_params *params, 5278 u32 interval) 5279 { 5280 struct i802_bss *bss = priv; 5281 struct wpa_driver_nl80211_data *drv = bss->drv; 5282 int ret = -1; 5283 struct nl_msg *msg; 5284 size_t i; 5285 5286 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: sched_scan request"); 5287 5288 #ifdef ANDROID 5289 if (!drv->capa.sched_scan_supported) 5290 return android_pno_start(bss, params); 5291 #endif /* ANDROID */ 5292 5293 msg = nl80211_scan_common(drv, NL80211_CMD_START_SCHED_SCAN, params, 5294 bss->wdev_id_set ? &bss->wdev_id : NULL); 5295 if (!msg) 5296 goto nla_put_failure; 5297 5298 NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval); 5299 5300 if ((drv->num_filter_ssids && 5301 (int) drv->num_filter_ssids <= drv->capa.max_match_sets) || 5302 params->filter_rssi) { 5303 struct nlattr *match_sets; 5304 match_sets = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH); 5305 if (match_sets == NULL) 5306 goto nla_put_failure; 5307 5308 for (i = 0; i < drv->num_filter_ssids; i++) { 5309 struct nlattr *match_set_ssid; 5310 wpa_hexdump_ascii(MSG_MSGDUMP, 5311 "nl80211: Sched scan filter SSID", 5312 drv->filter_ssids[i].ssid, 5313 drv->filter_ssids[i].ssid_len); 5314 5315 match_set_ssid = nla_nest_start(msg, i + 1); 5316 if (match_set_ssid == NULL) 5317 goto nla_put_failure; 5318 NLA_PUT(msg, NL80211_ATTR_SCHED_SCAN_MATCH_SSID, 5319 drv->filter_ssids[i].ssid_len, 5320 drv->filter_ssids[i].ssid); 5321 if (params->filter_rssi) 5322 NLA_PUT_U32(msg, 5323 NL80211_SCHED_SCAN_MATCH_ATTR_RSSI, 5324 params->filter_rssi); 5325 5326 nla_nest_end(msg, match_set_ssid); 5327 } 5328 5329 /* 5330 * Due to backward compatibility code, newer kernels treat this 5331 * matchset (with only an RSSI filter) as the default for all 5332 * other matchsets, unless it's the only one, in which case the 5333 * matchset will actually allow all SSIDs above the RSSI. 5334 */ 5335 if (params->filter_rssi) { 5336 struct nlattr *match_set_rssi; 5337 match_set_rssi = nla_nest_start(msg, 0); 5338 if (match_set_rssi == NULL) 5339 goto nla_put_failure; 5340 NLA_PUT_U32(msg, NL80211_SCHED_SCAN_MATCH_ATTR_RSSI, 5341 params->filter_rssi); 5342 wpa_printf(MSG_MSGDUMP, 5343 "nl80211: Sched scan RSSI filter %d dBm", 5344 params->filter_rssi); 5345 nla_nest_end(msg, match_set_rssi); 5346 } 5347 5348 nla_nest_end(msg, match_sets); 5349 } 5350 5351 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5352 5353 /* TODO: if we get an error here, we should fall back to normal scan */ 5354 5355 msg = NULL; 5356 if (ret) { 5357 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: " 5358 "ret=%d (%s)", ret, strerror(-ret)); 5359 goto nla_put_failure; 5360 } 5361 5362 wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - " 5363 "scan interval %d msec", ret, interval); 5364 5365 nla_put_failure: 5366 nlmsg_free(msg); 5367 return ret; 5368 } 5369 5370 5371 /** 5372 * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan 5373 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 5374 * Returns: 0 on success, -1 on failure or if not supported 5375 */ 5376 static int wpa_driver_nl80211_stop_sched_scan(void *priv) 5377 { 5378 struct i802_bss *bss = priv; 5379 struct wpa_driver_nl80211_data *drv = bss->drv; 5380 int ret = 0; 5381 struct nl_msg *msg; 5382 5383 #ifdef ANDROID 5384 if (!drv->capa.sched_scan_supported) 5385 return android_pno_stop(bss); 5386 #endif /* ANDROID */ 5387 5388 msg = nlmsg_alloc(); 5389 if (!msg) 5390 return -1; 5391 5392 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN); 5393 5394 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5395 5396 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5397 msg = NULL; 5398 if (ret) { 5399 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: " 5400 "ret=%d (%s)", ret, strerror(-ret)); 5401 goto nla_put_failure; 5402 } 5403 5404 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret); 5405 5406 nla_put_failure: 5407 nlmsg_free(msg); 5408 return ret; 5409 } 5410 5411 5412 static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie) 5413 { 5414 const u8 *end, *pos; 5415 5416 if (ies == NULL) 5417 return NULL; 5418 5419 pos = ies; 5420 end = ies + ies_len; 5421 5422 while (pos + 1 < end) { 5423 if (pos + 2 + pos[1] > end) 5424 break; 5425 if (pos[0] == ie) 5426 return pos; 5427 pos += 2 + pos[1]; 5428 } 5429 5430 return NULL; 5431 } 5432 5433 5434 static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv, 5435 const u8 *ie, size_t ie_len) 5436 { 5437 const u8 *ssid; 5438 size_t i; 5439 5440 if (drv->filter_ssids == NULL) 5441 return 0; 5442 5443 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID); 5444 if (ssid == NULL) 5445 return 1; 5446 5447 for (i = 0; i < drv->num_filter_ssids; i++) { 5448 if (ssid[1] == drv->filter_ssids[i].ssid_len && 5449 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) == 5450 0) 5451 return 0; 5452 } 5453 5454 return 1; 5455 } 5456 5457 5458 static int bss_info_handler(struct nl_msg *msg, void *arg) 5459 { 5460 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 5461 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 5462 struct nlattr *bss[NL80211_BSS_MAX + 1]; 5463 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = { 5464 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC }, 5465 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 }, 5466 [NL80211_BSS_TSF] = { .type = NLA_U64 }, 5467 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 }, 5468 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 }, 5469 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC }, 5470 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 }, 5471 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 }, 5472 [NL80211_BSS_STATUS] = { .type = NLA_U32 }, 5473 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 }, 5474 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC }, 5475 }; 5476 struct nl80211_bss_info_arg *_arg = arg; 5477 struct wpa_scan_results *res = _arg->res; 5478 struct wpa_scan_res **tmp; 5479 struct wpa_scan_res *r; 5480 const u8 *ie, *beacon_ie; 5481 size_t ie_len, beacon_ie_len; 5482 u8 *pos; 5483 size_t i; 5484 5485 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 5486 genlmsg_attrlen(gnlh, 0), NULL); 5487 if (!tb[NL80211_ATTR_BSS]) 5488 return NL_SKIP; 5489 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS], 5490 bss_policy)) 5491 return NL_SKIP; 5492 if (bss[NL80211_BSS_STATUS]) { 5493 enum nl80211_bss_status status; 5494 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 5495 if (status == NL80211_BSS_STATUS_ASSOCIATED && 5496 bss[NL80211_BSS_FREQUENCY]) { 5497 _arg->assoc_freq = 5498 nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 5499 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz", 5500 _arg->assoc_freq); 5501 } 5502 if (status == NL80211_BSS_STATUS_IBSS_JOINED && 5503 bss[NL80211_BSS_FREQUENCY]) { 5504 _arg->ibss_freq = 5505 nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 5506 wpa_printf(MSG_DEBUG, "nl80211: IBSS-joined on %u MHz", 5507 _arg->ibss_freq); 5508 } 5509 if (status == NL80211_BSS_STATUS_ASSOCIATED && 5510 bss[NL80211_BSS_BSSID]) { 5511 os_memcpy(_arg->assoc_bssid, 5512 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN); 5513 wpa_printf(MSG_DEBUG, "nl80211: Associated with " 5514 MACSTR, MAC2STR(_arg->assoc_bssid)); 5515 } 5516 } 5517 if (!res) 5518 return NL_SKIP; 5519 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) { 5520 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 5521 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 5522 } else { 5523 ie = NULL; 5524 ie_len = 0; 5525 } 5526 if (bss[NL80211_BSS_BEACON_IES]) { 5527 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]); 5528 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]); 5529 } else { 5530 beacon_ie = NULL; 5531 beacon_ie_len = 0; 5532 } 5533 5534 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie, 5535 ie ? ie_len : beacon_ie_len)) 5536 return NL_SKIP; 5537 5538 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len); 5539 if (r == NULL) 5540 return NL_SKIP; 5541 if (bss[NL80211_BSS_BSSID]) 5542 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]), 5543 ETH_ALEN); 5544 if (bss[NL80211_BSS_FREQUENCY]) 5545 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 5546 if (bss[NL80211_BSS_BEACON_INTERVAL]) 5547 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]); 5548 if (bss[NL80211_BSS_CAPABILITY]) 5549 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]); 5550 r->flags |= WPA_SCAN_NOISE_INVALID; 5551 if (bss[NL80211_BSS_SIGNAL_MBM]) { 5552 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]); 5553 r->level /= 100; /* mBm to dBm */ 5554 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID; 5555 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) { 5556 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]); 5557 r->flags |= WPA_SCAN_QUAL_INVALID; 5558 } else 5559 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID; 5560 if (bss[NL80211_BSS_TSF]) 5561 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]); 5562 if (bss[NL80211_BSS_SEEN_MS_AGO]) 5563 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]); 5564 r->ie_len = ie_len; 5565 pos = (u8 *) (r + 1); 5566 if (ie) { 5567 os_memcpy(pos, ie, ie_len); 5568 pos += ie_len; 5569 } 5570 r->beacon_ie_len = beacon_ie_len; 5571 if (beacon_ie) 5572 os_memcpy(pos, beacon_ie, beacon_ie_len); 5573 5574 if (bss[NL80211_BSS_STATUS]) { 5575 enum nl80211_bss_status status; 5576 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 5577 switch (status) { 5578 case NL80211_BSS_STATUS_AUTHENTICATED: 5579 r->flags |= WPA_SCAN_AUTHENTICATED; 5580 break; 5581 case NL80211_BSS_STATUS_ASSOCIATED: 5582 r->flags |= WPA_SCAN_ASSOCIATED; 5583 break; 5584 default: 5585 break; 5586 } 5587 } 5588 5589 /* 5590 * cfg80211 maintains separate BSS table entries for APs if the same 5591 * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does 5592 * not use frequency as a separate key in the BSS table, so filter out 5593 * duplicated entries. Prefer associated BSS entry in such a case in 5594 * order to get the correct frequency into the BSS table. Similarly, 5595 * prefer newer entries over older. 5596 */ 5597 for (i = 0; i < res->num; i++) { 5598 const u8 *s1, *s2; 5599 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0) 5600 continue; 5601 5602 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1), 5603 res->res[i]->ie_len, WLAN_EID_SSID); 5604 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID); 5605 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] || 5606 os_memcmp(s1, s2, 2 + s1[1]) != 0) 5607 continue; 5608 5609 /* Same BSSID,SSID was already included in scan results */ 5610 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result " 5611 "for " MACSTR, MAC2STR(r->bssid)); 5612 5613 if (((r->flags & WPA_SCAN_ASSOCIATED) && 5614 !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) || 5615 r->age < res->res[i]->age) { 5616 os_free(res->res[i]); 5617 res->res[i] = r; 5618 } else 5619 os_free(r); 5620 return NL_SKIP; 5621 } 5622 5623 tmp = os_realloc_array(res->res, res->num + 1, 5624 sizeof(struct wpa_scan_res *)); 5625 if (tmp == NULL) { 5626 os_free(r); 5627 return NL_SKIP; 5628 } 5629 tmp[res->num++] = r; 5630 res->res = tmp; 5631 5632 return NL_SKIP; 5633 } 5634 5635 5636 static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv, 5637 const u8 *addr) 5638 { 5639 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 5640 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state " 5641 "mismatch (" MACSTR ")", MAC2STR(addr)); 5642 wpa_driver_nl80211_mlme(drv, addr, 5643 NL80211_CMD_DEAUTHENTICATE, 5644 WLAN_REASON_PREV_AUTH_NOT_VALID, 1); 5645 } 5646 } 5647 5648 5649 static void wpa_driver_nl80211_check_bss_status( 5650 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res) 5651 { 5652 size_t i; 5653 5654 for (i = 0; i < res->num; i++) { 5655 struct wpa_scan_res *r = res->res[i]; 5656 if (r->flags & WPA_SCAN_AUTHENTICATED) { 5657 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 5658 "indicates BSS status with " MACSTR 5659 " as authenticated", 5660 MAC2STR(r->bssid)); 5661 if (is_sta_interface(drv->nlmode) && 5662 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 && 5663 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) != 5664 0) { 5665 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID" 5666 " in local state (auth=" MACSTR 5667 " assoc=" MACSTR ")", 5668 MAC2STR(drv->auth_bssid), 5669 MAC2STR(drv->bssid)); 5670 clear_state_mismatch(drv, r->bssid); 5671 } 5672 } 5673 5674 if (r->flags & WPA_SCAN_ASSOCIATED) { 5675 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 5676 "indicate BSS status with " MACSTR 5677 " as associated", 5678 MAC2STR(r->bssid)); 5679 if (is_sta_interface(drv->nlmode) && 5680 !drv->associated) { 5681 wpa_printf(MSG_DEBUG, "nl80211: Local state " 5682 "(not associated) does not match " 5683 "with BSS state"); 5684 clear_state_mismatch(drv, r->bssid); 5685 } else if (is_sta_interface(drv->nlmode) && 5686 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) != 5687 0) { 5688 wpa_printf(MSG_DEBUG, "nl80211: Local state " 5689 "(associated with " MACSTR ") does " 5690 "not match with BSS state", 5691 MAC2STR(drv->bssid)); 5692 clear_state_mismatch(drv, r->bssid); 5693 clear_state_mismatch(drv, drv->bssid); 5694 } 5695 } 5696 } 5697 } 5698 5699 5700 static struct wpa_scan_results * 5701 nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv) 5702 { 5703 struct nl_msg *msg; 5704 struct wpa_scan_results *res; 5705 int ret; 5706 struct nl80211_bss_info_arg arg; 5707 5708 res = os_zalloc(sizeof(*res)); 5709 if (res == NULL) 5710 return NULL; 5711 msg = nlmsg_alloc(); 5712 if (!msg) 5713 goto nla_put_failure; 5714 5715 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 5716 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 5717 goto nla_put_failure; 5718 5719 arg.drv = drv; 5720 arg.res = res; 5721 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 5722 msg = NULL; 5723 if (ret == 0) { 5724 wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu " 5725 "BSSes)", (unsigned long) res->num); 5726 nl80211_get_noise_for_scan_results(drv, res); 5727 return res; 5728 } 5729 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 5730 "(%s)", ret, strerror(-ret)); 5731 nla_put_failure: 5732 nlmsg_free(msg); 5733 wpa_scan_results_free(res); 5734 return NULL; 5735 } 5736 5737 5738 /** 5739 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results 5740 * @priv: Pointer to private wext data from wpa_driver_nl80211_init() 5741 * Returns: Scan results on success, -1 on failure 5742 */ 5743 static struct wpa_scan_results * 5744 wpa_driver_nl80211_get_scan_results(void *priv) 5745 { 5746 struct i802_bss *bss = priv; 5747 struct wpa_driver_nl80211_data *drv = bss->drv; 5748 struct wpa_scan_results *res; 5749 5750 res = nl80211_get_scan_results(drv); 5751 if (res) 5752 wpa_driver_nl80211_check_bss_status(drv, res); 5753 return res; 5754 } 5755 5756 5757 static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv) 5758 { 5759 struct wpa_scan_results *res; 5760 size_t i; 5761 5762 res = nl80211_get_scan_results(drv); 5763 if (res == NULL) { 5764 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results"); 5765 return; 5766 } 5767 5768 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump"); 5769 for (i = 0; i < res->num; i++) { 5770 struct wpa_scan_res *r = res->res[i]; 5771 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s", 5772 (int) i, (int) res->num, MAC2STR(r->bssid), 5773 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "", 5774 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : ""); 5775 } 5776 5777 wpa_scan_results_free(res); 5778 } 5779 5780 5781 static u32 wpa_alg_to_cipher_suite(enum wpa_alg alg, size_t key_len) 5782 { 5783 switch (alg) { 5784 case WPA_ALG_WEP: 5785 if (key_len == 5) 5786 return WLAN_CIPHER_SUITE_WEP40; 5787 return WLAN_CIPHER_SUITE_WEP104; 5788 case WPA_ALG_TKIP: 5789 return WLAN_CIPHER_SUITE_TKIP; 5790 case WPA_ALG_CCMP: 5791 return WLAN_CIPHER_SUITE_CCMP; 5792 case WPA_ALG_GCMP: 5793 return WLAN_CIPHER_SUITE_GCMP; 5794 case WPA_ALG_CCMP_256: 5795 return WLAN_CIPHER_SUITE_CCMP_256; 5796 case WPA_ALG_GCMP_256: 5797 return WLAN_CIPHER_SUITE_GCMP_256; 5798 case WPA_ALG_IGTK: 5799 return WLAN_CIPHER_SUITE_AES_CMAC; 5800 case WPA_ALG_BIP_GMAC_128: 5801 return WLAN_CIPHER_SUITE_BIP_GMAC_128; 5802 case WPA_ALG_BIP_GMAC_256: 5803 return WLAN_CIPHER_SUITE_BIP_GMAC_256; 5804 case WPA_ALG_BIP_CMAC_256: 5805 return WLAN_CIPHER_SUITE_BIP_CMAC_256; 5806 case WPA_ALG_SMS4: 5807 return WLAN_CIPHER_SUITE_SMS4; 5808 case WPA_ALG_KRK: 5809 return WLAN_CIPHER_SUITE_KRK; 5810 case WPA_ALG_NONE: 5811 case WPA_ALG_PMK: 5812 wpa_printf(MSG_ERROR, "nl80211: Unexpected encryption algorithm %d", 5813 alg); 5814 return 0; 5815 } 5816 5817 wpa_printf(MSG_ERROR, "nl80211: Unsupported encryption algorithm %d", 5818 alg); 5819 return 0; 5820 } 5821 5822 5823 static u32 wpa_cipher_to_cipher_suite(unsigned int cipher) 5824 { 5825 switch (cipher) { 5826 case WPA_CIPHER_CCMP_256: 5827 return WLAN_CIPHER_SUITE_CCMP_256; 5828 case WPA_CIPHER_GCMP_256: 5829 return WLAN_CIPHER_SUITE_GCMP_256; 5830 case WPA_CIPHER_CCMP: 5831 return WLAN_CIPHER_SUITE_CCMP; 5832 case WPA_CIPHER_GCMP: 5833 return WLAN_CIPHER_SUITE_GCMP; 5834 case WPA_CIPHER_TKIP: 5835 return WLAN_CIPHER_SUITE_TKIP; 5836 case WPA_CIPHER_WEP104: 5837 return WLAN_CIPHER_SUITE_WEP104; 5838 case WPA_CIPHER_WEP40: 5839 return WLAN_CIPHER_SUITE_WEP40; 5840 case WPA_CIPHER_GTK_NOT_USED: 5841 return WLAN_CIPHER_SUITE_NO_GROUP_ADDR; 5842 } 5843 5844 return 0; 5845 } 5846 5847 5848 static int wpa_cipher_to_cipher_suites(unsigned int ciphers, u32 suites[], 5849 int max_suites) 5850 { 5851 int num_suites = 0; 5852 5853 if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP_256) 5854 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP_256; 5855 if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP_256) 5856 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP_256; 5857 if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP) 5858 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP; 5859 if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP) 5860 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP; 5861 if (num_suites < max_suites && ciphers & WPA_CIPHER_TKIP) 5862 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP; 5863 if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP104) 5864 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104; 5865 if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP40) 5866 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40; 5867 5868 return num_suites; 5869 } 5870 5871 5872 static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss, 5873 enum wpa_alg alg, const u8 *addr, 5874 int key_idx, int set_tx, 5875 const u8 *seq, size_t seq_len, 5876 const u8 *key, size_t key_len) 5877 { 5878 struct wpa_driver_nl80211_data *drv = bss->drv; 5879 int ifindex; 5880 struct nl_msg *msg; 5881 int ret; 5882 int tdls = 0; 5883 5884 /* Ignore for P2P Device */ 5885 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 5886 return 0; 5887 5888 ifindex = if_nametoindex(ifname); 5889 wpa_printf(MSG_DEBUG, "%s: ifindex=%d (%s) alg=%d addr=%p key_idx=%d " 5890 "set_tx=%d seq_len=%lu key_len=%lu", 5891 __func__, ifindex, ifname, alg, addr, key_idx, set_tx, 5892 (unsigned long) seq_len, (unsigned long) key_len); 5893 #ifdef CONFIG_TDLS 5894 if (key_idx == -1) { 5895 key_idx = 0; 5896 tdls = 1; 5897 } 5898 #endif /* CONFIG_TDLS */ 5899 5900 msg = nlmsg_alloc(); 5901 if (!msg) 5902 return -ENOMEM; 5903 5904 if (alg == WPA_ALG_NONE) { 5905 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY); 5906 } else { 5907 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY); 5908 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key); 5909 wpa_hexdump_key(MSG_DEBUG, "nl80211: KEY_DATA", key, key_len); 5910 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5911 wpa_alg_to_cipher_suite(alg, key_len)); 5912 } 5913 5914 if (seq && seq_len) { 5915 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq); 5916 wpa_hexdump(MSG_DEBUG, "nl80211: KEY_SEQ", seq, seq_len); 5917 } 5918 5919 if (addr && !is_broadcast_ether_addr(addr)) { 5920 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr)); 5921 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 5922 5923 if (alg != WPA_ALG_WEP && key_idx && !set_tx) { 5924 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK"); 5925 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, 5926 NL80211_KEYTYPE_GROUP); 5927 } 5928 } else if (addr && is_broadcast_ether_addr(addr)) { 5929 struct nlattr *types; 5930 5931 wpa_printf(MSG_DEBUG, " broadcast key"); 5932 5933 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5934 if (!types) 5935 goto nla_put_failure; 5936 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 5937 nla_nest_end(msg, types); 5938 } 5939 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 5940 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5941 5942 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5943 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE) 5944 ret = 0; 5945 if (ret) 5946 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)", 5947 ret, strerror(-ret)); 5948 5949 /* 5950 * If we failed or don't need to set the default TX key (below), 5951 * we're done here. 5952 */ 5953 if (ret || !set_tx || alg == WPA_ALG_NONE || tdls) 5954 return ret; 5955 if (is_ap_interface(drv->nlmode) && addr && 5956 !is_broadcast_ether_addr(addr)) 5957 return ret; 5958 5959 msg = nlmsg_alloc(); 5960 if (!msg) 5961 return -ENOMEM; 5962 5963 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY); 5964 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 5965 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5966 if (alg == WPA_ALG_IGTK) 5967 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT); 5968 else 5969 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT); 5970 if (addr && is_broadcast_ether_addr(addr)) { 5971 struct nlattr *types; 5972 5973 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5974 if (!types) 5975 goto nla_put_failure; 5976 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 5977 nla_nest_end(msg, types); 5978 } else if (addr) { 5979 struct nlattr *types; 5980 5981 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5982 if (!types) 5983 goto nla_put_failure; 5984 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_UNICAST); 5985 nla_nest_end(msg, types); 5986 } 5987 5988 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5989 if (ret == -ENOENT) 5990 ret = 0; 5991 if (ret) 5992 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; " 5993 "err=%d %s)", ret, strerror(-ret)); 5994 return ret; 5995 5996 nla_put_failure: 5997 nlmsg_free(msg); 5998 return -ENOBUFS; 5999 } 6000 6001 6002 static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg, 6003 int key_idx, int defkey, 6004 const u8 *seq, size_t seq_len, 6005 const u8 *key, size_t key_len) 6006 { 6007 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY); 6008 if (!key_attr) 6009 return -1; 6010 6011 if (defkey && alg == WPA_ALG_IGTK) 6012 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT); 6013 else if (defkey) 6014 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 6015 6016 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx); 6017 6018 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 6019 wpa_alg_to_cipher_suite(alg, key_len)); 6020 6021 if (seq && seq_len) 6022 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq); 6023 6024 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key); 6025 6026 nla_nest_end(msg, key_attr); 6027 6028 return 0; 6029 nla_put_failure: 6030 return -1; 6031 } 6032 6033 6034 static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params, 6035 struct nl_msg *msg) 6036 { 6037 int i, privacy = 0; 6038 struct nlattr *nl_keys, *nl_key; 6039 6040 for (i = 0; i < 4; i++) { 6041 if (!params->wep_key[i]) 6042 continue; 6043 privacy = 1; 6044 break; 6045 } 6046 if (params->wps == WPS_MODE_PRIVACY) 6047 privacy = 1; 6048 if (params->pairwise_suite && 6049 params->pairwise_suite != WPA_CIPHER_NONE) 6050 privacy = 1; 6051 6052 if (!privacy) 6053 return 0; 6054 6055 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 6056 6057 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS); 6058 if (!nl_keys) 6059 goto nla_put_failure; 6060 6061 for (i = 0; i < 4; i++) { 6062 if (!params->wep_key[i]) 6063 continue; 6064 6065 nl_key = nla_nest_start(msg, i); 6066 if (!nl_key) 6067 goto nla_put_failure; 6068 6069 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i], 6070 params->wep_key[i]); 6071 if (params->wep_key_len[i] == 5) 6072 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 6073 WLAN_CIPHER_SUITE_WEP40); 6074 else 6075 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 6076 WLAN_CIPHER_SUITE_WEP104); 6077 6078 NLA_PUT_U8(msg, NL80211_KEY_IDX, i); 6079 6080 if (i == params->wep_tx_keyidx) 6081 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 6082 6083 nla_nest_end(msg, nl_key); 6084 } 6085 nla_nest_end(msg, nl_keys); 6086 6087 return 0; 6088 6089 nla_put_failure: 6090 return -ENOBUFS; 6091 } 6092 6093 6094 static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 6095 const u8 *addr, int cmd, u16 reason_code, 6096 int local_state_change) 6097 { 6098 int ret = -1; 6099 struct nl_msg *msg; 6100 6101 msg = nlmsg_alloc(); 6102 if (!msg) 6103 return -1; 6104 6105 nl80211_cmd(drv, msg, 0, cmd); 6106 6107 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6108 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code); 6109 if (addr) 6110 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 6111 if (local_state_change) 6112 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 6113 6114 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6115 msg = NULL; 6116 if (ret) { 6117 wpa_dbg(drv->ctx, MSG_DEBUG, 6118 "nl80211: MLME command failed: reason=%u ret=%d (%s)", 6119 reason_code, ret, strerror(-ret)); 6120 goto nla_put_failure; 6121 } 6122 ret = 0; 6123 6124 nla_put_failure: 6125 nlmsg_free(msg); 6126 return ret; 6127 } 6128 6129 6130 static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv, 6131 int reason_code) 6132 { 6133 int ret; 6134 6135 wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code); 6136 nl80211_mark_disconnected(drv); 6137 /* Disconnect command doesn't need BSSID - it uses cached value */ 6138 ret = wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT, 6139 reason_code, 0); 6140 /* 6141 * For locally generated disconnect, supplicant already generates a 6142 * DEAUTH event, so ignore the event from NL80211. 6143 */ 6144 drv->ignore_next_local_disconnect = ret == 0; 6145 6146 return ret; 6147 } 6148 6149 6150 static int wpa_driver_nl80211_deauthenticate(struct i802_bss *bss, 6151 const u8 *addr, int reason_code) 6152 { 6153 struct wpa_driver_nl80211_data *drv = bss->drv; 6154 int ret; 6155 6156 if (drv->nlmode == NL80211_IFTYPE_ADHOC) { 6157 nl80211_mark_disconnected(drv); 6158 return nl80211_leave_ibss(drv); 6159 } 6160 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) 6161 return wpa_driver_nl80211_disconnect(drv, reason_code); 6162 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)", 6163 __func__, MAC2STR(addr), reason_code); 6164 nl80211_mark_disconnected(drv); 6165 ret = wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE, 6166 reason_code, 0); 6167 /* 6168 * For locally generated deauthenticate, supplicant already generates a 6169 * DEAUTH event, so ignore the event from NL80211. 6170 */ 6171 drv->ignore_next_local_deauth = ret == 0; 6172 return ret; 6173 } 6174 6175 6176 static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv, 6177 struct wpa_driver_auth_params *params) 6178 { 6179 int i; 6180 6181 drv->auth_freq = params->freq; 6182 drv->auth_alg = params->auth_alg; 6183 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx; 6184 drv->auth_local_state_change = params->local_state_change; 6185 drv->auth_p2p = params->p2p; 6186 6187 if (params->bssid) 6188 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN); 6189 else 6190 os_memset(drv->auth_bssid_, 0, ETH_ALEN); 6191 6192 if (params->ssid) { 6193 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len); 6194 drv->auth_ssid_len = params->ssid_len; 6195 } else 6196 drv->auth_ssid_len = 0; 6197 6198 6199 os_free(drv->auth_ie); 6200 drv->auth_ie = NULL; 6201 drv->auth_ie_len = 0; 6202 if (params->ie) { 6203 drv->auth_ie = os_malloc(params->ie_len); 6204 if (drv->auth_ie) { 6205 os_memcpy(drv->auth_ie, params->ie, params->ie_len); 6206 drv->auth_ie_len = params->ie_len; 6207 } 6208 } 6209 6210 for (i = 0; i < 4; i++) { 6211 if (params->wep_key[i] && params->wep_key_len[i] && 6212 params->wep_key_len[i] <= 16) { 6213 os_memcpy(drv->auth_wep_key[i], params->wep_key[i], 6214 params->wep_key_len[i]); 6215 drv->auth_wep_key_len[i] = params->wep_key_len[i]; 6216 } else 6217 drv->auth_wep_key_len[i] = 0; 6218 } 6219 } 6220 6221 6222 static int wpa_driver_nl80211_authenticate( 6223 struct i802_bss *bss, struct wpa_driver_auth_params *params) 6224 { 6225 struct wpa_driver_nl80211_data *drv = bss->drv; 6226 int ret = -1, i; 6227 struct nl_msg *msg; 6228 enum nl80211_auth_type type; 6229 enum nl80211_iftype nlmode; 6230 int count = 0; 6231 int is_retry; 6232 6233 is_retry = drv->retry_auth; 6234 drv->retry_auth = 0; 6235 drv->ignore_deauth_event = 0; 6236 6237 nl80211_mark_disconnected(drv); 6238 os_memset(drv->auth_bssid, 0, ETH_ALEN); 6239 if (params->bssid) 6240 os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN); 6241 else 6242 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 6243 /* FIX: IBSS mode */ 6244 nlmode = params->p2p ? 6245 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 6246 if (drv->nlmode != nlmode && 6247 wpa_driver_nl80211_set_mode(bss, nlmode) < 0) 6248 return -1; 6249 6250 retry: 6251 msg = nlmsg_alloc(); 6252 if (!msg) 6253 return -1; 6254 6255 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)", 6256 drv->ifindex); 6257 6258 nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE); 6259 6260 for (i = 0; i < 4; i++) { 6261 if (!params->wep_key[i]) 6262 continue; 6263 wpa_driver_nl80211_set_key(bss->ifname, bss, WPA_ALG_WEP, 6264 NULL, i, 6265 i == params->wep_tx_keyidx, NULL, 0, 6266 params->wep_key[i], 6267 params->wep_key_len[i]); 6268 if (params->wep_tx_keyidx != i) 6269 continue; 6270 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0, 6271 params->wep_key[i], params->wep_key_len[i])) { 6272 nlmsg_free(msg); 6273 return -1; 6274 } 6275 } 6276 6277 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6278 if (params->bssid) { 6279 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 6280 MAC2STR(params->bssid)); 6281 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 6282 } 6283 if (params->freq) { 6284 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 6285 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 6286 } 6287 if (params->ssid) { 6288 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 6289 params->ssid, params->ssid_len); 6290 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 6291 params->ssid); 6292 } 6293 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len); 6294 if (params->ie) 6295 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie); 6296 if (params->sae_data) { 6297 wpa_hexdump(MSG_DEBUG, " * SAE data", params->sae_data, 6298 params->sae_data_len); 6299 NLA_PUT(msg, NL80211_ATTR_SAE_DATA, params->sae_data_len, 6300 params->sae_data); 6301 } 6302 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 6303 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 6304 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 6305 type = NL80211_AUTHTYPE_SHARED_KEY; 6306 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 6307 type = NL80211_AUTHTYPE_NETWORK_EAP; 6308 else if (params->auth_alg & WPA_AUTH_ALG_FT) 6309 type = NL80211_AUTHTYPE_FT; 6310 else if (params->auth_alg & WPA_AUTH_ALG_SAE) 6311 type = NL80211_AUTHTYPE_SAE; 6312 else 6313 goto nla_put_failure; 6314 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 6315 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 6316 if (params->local_state_change) { 6317 wpa_printf(MSG_DEBUG, " * Local state change only"); 6318 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 6319 } 6320 6321 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6322 msg = NULL; 6323 if (ret) { 6324 wpa_dbg(drv->ctx, MSG_DEBUG, 6325 "nl80211: MLME command failed (auth): ret=%d (%s)", 6326 ret, strerror(-ret)); 6327 count++; 6328 if (ret == -EALREADY && count == 1 && params->bssid && 6329 !params->local_state_change) { 6330 /* 6331 * mac80211 does not currently accept new 6332 * authentication if we are already authenticated. As a 6333 * workaround, force deauthentication and try again. 6334 */ 6335 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication " 6336 "after forced deauthentication"); 6337 drv->ignore_deauth_event = 1; 6338 wpa_driver_nl80211_deauthenticate( 6339 bss, params->bssid, 6340 WLAN_REASON_PREV_AUTH_NOT_VALID); 6341 nlmsg_free(msg); 6342 goto retry; 6343 } 6344 6345 if (ret == -ENOENT && params->freq && !is_retry) { 6346 /* 6347 * cfg80211 has likely expired the BSS entry even 6348 * though it was previously available in our internal 6349 * BSS table. To recover quickly, start a single 6350 * channel scan on the specified channel. 6351 */ 6352 struct wpa_driver_scan_params scan; 6353 int freqs[2]; 6354 6355 os_memset(&scan, 0, sizeof(scan)); 6356 scan.num_ssids = 1; 6357 if (params->ssid) { 6358 scan.ssids[0].ssid = params->ssid; 6359 scan.ssids[0].ssid_len = params->ssid_len; 6360 } 6361 freqs[0] = params->freq; 6362 freqs[1] = 0; 6363 scan.freqs = freqs; 6364 wpa_printf(MSG_DEBUG, "nl80211: Trigger single " 6365 "channel scan to refresh cfg80211 BSS " 6366 "entry"); 6367 ret = wpa_driver_nl80211_scan(bss, &scan); 6368 if (ret == 0) { 6369 nl80211_copy_auth_params(drv, params); 6370 drv->scan_for_auth = 1; 6371 } 6372 } else if (is_retry) { 6373 /* 6374 * Need to indicate this with an event since the return 6375 * value from the retry is not delivered to core code. 6376 */ 6377 union wpa_event_data event; 6378 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry " 6379 "failed"); 6380 os_memset(&event, 0, sizeof(event)); 6381 os_memcpy(event.timeout_event.addr, drv->auth_bssid_, 6382 ETH_ALEN); 6383 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT, 6384 &event); 6385 } 6386 6387 goto nla_put_failure; 6388 } 6389 ret = 0; 6390 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send " 6391 "successfully"); 6392 6393 nla_put_failure: 6394 nlmsg_free(msg); 6395 return ret; 6396 } 6397 6398 6399 static int wpa_driver_nl80211_authenticate_retry( 6400 struct wpa_driver_nl80211_data *drv) 6401 { 6402 struct wpa_driver_auth_params params; 6403 struct i802_bss *bss = drv->first_bss; 6404 int i; 6405 6406 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again"); 6407 6408 os_memset(¶ms, 0, sizeof(params)); 6409 params.freq = drv->auth_freq; 6410 params.auth_alg = drv->auth_alg; 6411 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx; 6412 params.local_state_change = drv->auth_local_state_change; 6413 params.p2p = drv->auth_p2p; 6414 6415 if (!is_zero_ether_addr(drv->auth_bssid_)) 6416 params.bssid = drv->auth_bssid_; 6417 6418 if (drv->auth_ssid_len) { 6419 params.ssid = drv->auth_ssid; 6420 params.ssid_len = drv->auth_ssid_len; 6421 } 6422 6423 params.ie = drv->auth_ie; 6424 params.ie_len = drv->auth_ie_len; 6425 6426 for (i = 0; i < 4; i++) { 6427 if (drv->auth_wep_key_len[i]) { 6428 params.wep_key[i] = drv->auth_wep_key[i]; 6429 params.wep_key_len[i] = drv->auth_wep_key_len[i]; 6430 } 6431 } 6432 6433 drv->retry_auth = 1; 6434 return wpa_driver_nl80211_authenticate(bss, ¶ms); 6435 } 6436 6437 6438 struct phy_info_arg { 6439 u16 *num_modes; 6440 struct hostapd_hw_modes *modes; 6441 int last_mode, last_chan_idx; 6442 }; 6443 6444 static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa, 6445 struct nlattr *ampdu_factor, 6446 struct nlattr *ampdu_density, 6447 struct nlattr *mcs_set) 6448 { 6449 if (capa) 6450 mode->ht_capab = nla_get_u16(capa); 6451 6452 if (ampdu_factor) 6453 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03; 6454 6455 if (ampdu_density) 6456 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2; 6457 6458 if (mcs_set && nla_len(mcs_set) >= 16) { 6459 u8 *mcs; 6460 mcs = nla_data(mcs_set); 6461 os_memcpy(mode->mcs_set, mcs, 16); 6462 } 6463 } 6464 6465 6466 static void phy_info_vht_capa(struct hostapd_hw_modes *mode, 6467 struct nlattr *capa, 6468 struct nlattr *mcs_set) 6469 { 6470 if (capa) 6471 mode->vht_capab = nla_get_u32(capa); 6472 6473 if (mcs_set && nla_len(mcs_set) >= 8) { 6474 u8 *mcs; 6475 mcs = nla_data(mcs_set); 6476 os_memcpy(mode->vht_mcs_set, mcs, 8); 6477 } 6478 } 6479 6480 6481 static void phy_info_freq(struct hostapd_hw_modes *mode, 6482 struct hostapd_channel_data *chan, 6483 struct nlattr *tb_freq[]) 6484 { 6485 u8 channel; 6486 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]); 6487 chan->flag = 0; 6488 chan->dfs_cac_ms = 0; 6489 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES) 6490 chan->chan = channel; 6491 6492 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) 6493 chan->flag |= HOSTAPD_CHAN_DISABLED; 6494 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IR]) 6495 chan->flag |= HOSTAPD_CHAN_PASSIVE_SCAN | HOSTAPD_CHAN_NO_IBSS; 6496 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR]) 6497 chan->flag |= HOSTAPD_CHAN_RADAR; 6498 6499 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) { 6500 enum nl80211_dfs_state state = 6501 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]); 6502 6503 switch (state) { 6504 case NL80211_DFS_USABLE: 6505 chan->flag |= HOSTAPD_CHAN_DFS_USABLE; 6506 break; 6507 case NL80211_DFS_AVAILABLE: 6508 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE; 6509 break; 6510 case NL80211_DFS_UNAVAILABLE: 6511 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE; 6512 break; 6513 } 6514 } 6515 6516 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME]) { 6517 chan->dfs_cac_ms = nla_get_u32( 6518 tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME]); 6519 } 6520 } 6521 6522 6523 static int phy_info_freqs(struct phy_info_arg *phy_info, 6524 struct hostapd_hw_modes *mode, struct nlattr *tb) 6525 { 6526 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 6527 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 }, 6528 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG }, 6529 [NL80211_FREQUENCY_ATTR_NO_IR] = { .type = NLA_FLAG }, 6530 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG }, 6531 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 }, 6532 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 }, 6533 }; 6534 int new_channels = 0; 6535 struct hostapd_channel_data *channel; 6536 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1]; 6537 struct nlattr *nl_freq; 6538 int rem_freq, idx; 6539 6540 if (tb == NULL) 6541 return NL_OK; 6542 6543 nla_for_each_nested(nl_freq, tb, rem_freq) { 6544 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 6545 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 6546 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 6547 continue; 6548 new_channels++; 6549 } 6550 6551 channel = os_realloc_array(mode->channels, 6552 mode->num_channels + new_channels, 6553 sizeof(struct hostapd_channel_data)); 6554 if (!channel) 6555 return NL_SKIP; 6556 6557 mode->channels = channel; 6558 mode->num_channels += new_channels; 6559 6560 idx = phy_info->last_chan_idx; 6561 6562 nla_for_each_nested(nl_freq, tb, rem_freq) { 6563 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 6564 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 6565 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 6566 continue; 6567 phy_info_freq(mode, &mode->channels[idx], tb_freq); 6568 idx++; 6569 } 6570 phy_info->last_chan_idx = idx; 6571 6572 return NL_OK; 6573 } 6574 6575 6576 static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb) 6577 { 6578 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = { 6579 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 }, 6580 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = 6581 { .type = NLA_FLAG }, 6582 }; 6583 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1]; 6584 struct nlattr *nl_rate; 6585 int rem_rate, idx; 6586 6587 if (tb == NULL) 6588 return NL_OK; 6589 6590 nla_for_each_nested(nl_rate, tb, rem_rate) { 6591 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 6592 nla_data(nl_rate), nla_len(nl_rate), 6593 rate_policy); 6594 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 6595 continue; 6596 mode->num_rates++; 6597 } 6598 6599 mode->rates = os_calloc(mode->num_rates, sizeof(int)); 6600 if (!mode->rates) 6601 return NL_SKIP; 6602 6603 idx = 0; 6604 6605 nla_for_each_nested(nl_rate, tb, rem_rate) { 6606 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 6607 nla_data(nl_rate), nla_len(nl_rate), 6608 rate_policy); 6609 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 6610 continue; 6611 mode->rates[idx] = nla_get_u32( 6612 tb_rate[NL80211_BITRATE_ATTR_RATE]); 6613 idx++; 6614 } 6615 6616 return NL_OK; 6617 } 6618 6619 6620 static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band) 6621 { 6622 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1]; 6623 struct hostapd_hw_modes *mode; 6624 int ret; 6625 6626 if (phy_info->last_mode != nl_band->nla_type) { 6627 mode = os_realloc_array(phy_info->modes, 6628 *phy_info->num_modes + 1, 6629 sizeof(*mode)); 6630 if (!mode) 6631 return NL_SKIP; 6632 phy_info->modes = mode; 6633 6634 mode = &phy_info->modes[*(phy_info->num_modes)]; 6635 os_memset(mode, 0, sizeof(*mode)); 6636 mode->mode = NUM_HOSTAPD_MODES; 6637 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN | 6638 HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN; 6639 6640 /* 6641 * Unsupported VHT MCS stream is defined as value 3, so the VHT 6642 * MCS RX/TX map must be initialized with 0xffff to mark all 8 6643 * possible streams as unsupported. This will be overridden if 6644 * driver advertises VHT support. 6645 */ 6646 mode->vht_mcs_set[0] = 0xff; 6647 mode->vht_mcs_set[1] = 0xff; 6648 mode->vht_mcs_set[4] = 0xff; 6649 mode->vht_mcs_set[5] = 0xff; 6650 6651 *(phy_info->num_modes) += 1; 6652 phy_info->last_mode = nl_band->nla_type; 6653 phy_info->last_chan_idx = 0; 6654 } else 6655 mode = &phy_info->modes[*(phy_info->num_modes) - 1]; 6656 6657 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band), 6658 nla_len(nl_band), NULL); 6659 6660 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA], 6661 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR], 6662 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY], 6663 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]); 6664 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA], 6665 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]); 6666 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]); 6667 if (ret != NL_OK) 6668 return ret; 6669 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]); 6670 if (ret != NL_OK) 6671 return ret; 6672 6673 return NL_OK; 6674 } 6675 6676 6677 static int phy_info_handler(struct nl_msg *msg, void *arg) 6678 { 6679 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 6680 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 6681 struct phy_info_arg *phy_info = arg; 6682 struct nlattr *nl_band; 6683 int rem_band; 6684 6685 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 6686 genlmsg_attrlen(gnlh, 0), NULL); 6687 6688 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS]) 6689 return NL_SKIP; 6690 6691 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) 6692 { 6693 int res = phy_info_band(phy_info, nl_band); 6694 if (res != NL_OK) 6695 return res; 6696 } 6697 6698 return NL_SKIP; 6699 } 6700 6701 6702 static struct hostapd_hw_modes * 6703 wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes, 6704 u16 *num_modes) 6705 { 6706 u16 m; 6707 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode; 6708 int i, mode11g_idx = -1; 6709 6710 /* heuristic to set up modes */ 6711 for (m = 0; m < *num_modes; m++) { 6712 if (!modes[m].num_channels) 6713 continue; 6714 if (modes[m].channels[0].freq < 4000) { 6715 modes[m].mode = HOSTAPD_MODE_IEEE80211B; 6716 for (i = 0; i < modes[m].num_rates; i++) { 6717 if (modes[m].rates[i] > 200) { 6718 modes[m].mode = HOSTAPD_MODE_IEEE80211G; 6719 break; 6720 } 6721 } 6722 } else if (modes[m].channels[0].freq > 50000) 6723 modes[m].mode = HOSTAPD_MODE_IEEE80211AD; 6724 else 6725 modes[m].mode = HOSTAPD_MODE_IEEE80211A; 6726 } 6727 6728 /* If only 802.11g mode is included, use it to construct matching 6729 * 802.11b mode data. */ 6730 6731 for (m = 0; m < *num_modes; m++) { 6732 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B) 6733 return modes; /* 802.11b already included */ 6734 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G) 6735 mode11g_idx = m; 6736 } 6737 6738 if (mode11g_idx < 0) 6739 return modes; /* 2.4 GHz band not supported at all */ 6740 6741 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes)); 6742 if (nmodes == NULL) 6743 return modes; /* Could not add 802.11b mode */ 6744 6745 mode = &nmodes[*num_modes]; 6746 os_memset(mode, 0, sizeof(*mode)); 6747 (*num_modes)++; 6748 modes = nmodes; 6749 6750 mode->mode = HOSTAPD_MODE_IEEE80211B; 6751 6752 mode11g = &modes[mode11g_idx]; 6753 mode->num_channels = mode11g->num_channels; 6754 mode->channels = os_malloc(mode11g->num_channels * 6755 sizeof(struct hostapd_channel_data)); 6756 if (mode->channels == NULL) { 6757 (*num_modes)--; 6758 return modes; /* Could not add 802.11b mode */ 6759 } 6760 os_memcpy(mode->channels, mode11g->channels, 6761 mode11g->num_channels * sizeof(struct hostapd_channel_data)); 6762 6763 mode->num_rates = 0; 6764 mode->rates = os_malloc(4 * sizeof(int)); 6765 if (mode->rates == NULL) { 6766 os_free(mode->channels); 6767 (*num_modes)--; 6768 return modes; /* Could not add 802.11b mode */ 6769 } 6770 6771 for (i = 0; i < mode11g->num_rates; i++) { 6772 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 && 6773 mode11g->rates[i] != 55 && mode11g->rates[i] != 110) 6774 continue; 6775 mode->rates[mode->num_rates] = mode11g->rates[i]; 6776 mode->num_rates++; 6777 if (mode->num_rates == 4) 6778 break; 6779 } 6780 6781 if (mode->num_rates == 0) { 6782 os_free(mode->channels); 6783 os_free(mode->rates); 6784 (*num_modes)--; 6785 return modes; /* No 802.11b rates */ 6786 } 6787 6788 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g " 6789 "information"); 6790 6791 return modes; 6792 } 6793 6794 6795 static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start, 6796 int end) 6797 { 6798 int c; 6799 6800 for (c = 0; c < mode->num_channels; c++) { 6801 struct hostapd_channel_data *chan = &mode->channels[c]; 6802 if (chan->freq - 10 >= start && chan->freq + 10 <= end) 6803 chan->flag |= HOSTAPD_CHAN_HT40; 6804 } 6805 } 6806 6807 6808 static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start, 6809 int end) 6810 { 6811 int c; 6812 6813 for (c = 0; c < mode->num_channels; c++) { 6814 struct hostapd_channel_data *chan = &mode->channels[c]; 6815 if (!(chan->flag & HOSTAPD_CHAN_HT40)) 6816 continue; 6817 if (chan->freq - 30 >= start && chan->freq - 10 <= end) 6818 chan->flag |= HOSTAPD_CHAN_HT40MINUS; 6819 if (chan->freq + 10 >= start && chan->freq + 30 <= end) 6820 chan->flag |= HOSTAPD_CHAN_HT40PLUS; 6821 } 6822 } 6823 6824 6825 static void nl80211_reg_rule_max_eirp(u32 start, u32 end, u32 max_eirp, 6826 struct phy_info_arg *results) 6827 { 6828 u16 m; 6829 6830 for (m = 0; m < *results->num_modes; m++) { 6831 int c; 6832 struct hostapd_hw_modes *mode = &results->modes[m]; 6833 6834 for (c = 0; c < mode->num_channels; c++) { 6835 struct hostapd_channel_data *chan = &mode->channels[c]; 6836 if ((u32) chan->freq - 10 >= start && 6837 (u32) chan->freq + 10 <= end) 6838 chan->max_tx_power = max_eirp; 6839 } 6840 } 6841 } 6842 6843 6844 static void nl80211_reg_rule_ht40(u32 start, u32 end, 6845 struct phy_info_arg *results) 6846 { 6847 u16 m; 6848 6849 for (m = 0; m < *results->num_modes; m++) { 6850 if (!(results->modes[m].ht_capab & 6851 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6852 continue; 6853 nl80211_set_ht40_mode(&results->modes[m], start, end); 6854 } 6855 } 6856 6857 6858 static void nl80211_reg_rule_sec(struct nlattr *tb[], 6859 struct phy_info_arg *results) 6860 { 6861 u32 start, end, max_bw; 6862 u16 m; 6863 6864 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6865 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 6866 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 6867 return; 6868 6869 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6870 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6871 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6872 6873 if (max_bw < 20) 6874 return; 6875 6876 for (m = 0; m < *results->num_modes; m++) { 6877 if (!(results->modes[m].ht_capab & 6878 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6879 continue; 6880 nl80211_set_ht40_mode_sec(&results->modes[m], start, end); 6881 } 6882 } 6883 6884 6885 static void nl80211_set_vht_mode(struct hostapd_hw_modes *mode, int start, 6886 int end) 6887 { 6888 int c; 6889 6890 for (c = 0; c < mode->num_channels; c++) { 6891 struct hostapd_channel_data *chan = &mode->channels[c]; 6892 if (chan->freq - 10 >= start && chan->freq + 70 <= end) 6893 chan->flag |= HOSTAPD_CHAN_VHT_10_70; 6894 6895 if (chan->freq - 30 >= start && chan->freq + 50 <= end) 6896 chan->flag |= HOSTAPD_CHAN_VHT_30_50; 6897 6898 if (chan->freq - 50 >= start && chan->freq + 30 <= end) 6899 chan->flag |= HOSTAPD_CHAN_VHT_50_30; 6900 6901 if (chan->freq - 70 >= start && chan->freq + 10 <= end) 6902 chan->flag |= HOSTAPD_CHAN_VHT_70_10; 6903 } 6904 } 6905 6906 6907 static void nl80211_reg_rule_vht(struct nlattr *tb[], 6908 struct phy_info_arg *results) 6909 { 6910 u32 start, end, max_bw; 6911 u16 m; 6912 6913 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6914 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 6915 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 6916 return; 6917 6918 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6919 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6920 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6921 6922 if (max_bw < 80) 6923 return; 6924 6925 for (m = 0; m < *results->num_modes; m++) { 6926 if (!(results->modes[m].ht_capab & 6927 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6928 continue; 6929 /* TODO: use a real VHT support indication */ 6930 if (!results->modes[m].vht_capab) 6931 continue; 6932 6933 nl80211_set_vht_mode(&results->modes[m], start, end); 6934 } 6935 } 6936 6937 6938 static const char * dfs_domain_name(enum nl80211_dfs_regions region) 6939 { 6940 switch (region) { 6941 case NL80211_DFS_UNSET: 6942 return "DFS-UNSET"; 6943 case NL80211_DFS_FCC: 6944 return "DFS-FCC"; 6945 case NL80211_DFS_ETSI: 6946 return "DFS-ETSI"; 6947 case NL80211_DFS_JP: 6948 return "DFS-JP"; 6949 default: 6950 return "DFS-invalid"; 6951 } 6952 } 6953 6954 6955 static int nl80211_get_reg(struct nl_msg *msg, void *arg) 6956 { 6957 struct phy_info_arg *results = arg; 6958 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 6959 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 6960 struct nlattr *nl_rule; 6961 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1]; 6962 int rem_rule; 6963 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 6964 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, 6965 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, 6966 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, 6967 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, 6968 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, 6969 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, 6970 }; 6971 6972 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 6973 genlmsg_attrlen(gnlh, 0), NULL); 6974 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] || 6975 !tb_msg[NL80211_ATTR_REG_RULES]) { 6976 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information " 6977 "available"); 6978 return NL_SKIP; 6979 } 6980 6981 if (tb_msg[NL80211_ATTR_DFS_REGION]) { 6982 enum nl80211_dfs_regions dfs_domain; 6983 dfs_domain = nla_get_u8(tb_msg[NL80211_ATTR_DFS_REGION]); 6984 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s (%s)", 6985 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]), 6986 dfs_domain_name(dfs_domain)); 6987 } else { 6988 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s", 6989 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2])); 6990 } 6991 6992 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6993 { 6994 u32 start, end, max_eirp = 0, max_bw = 0, flags = 0; 6995 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6996 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6997 if (tb_rule[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6998 tb_rule[NL80211_ATTR_FREQ_RANGE_END] == NULL) 6999 continue; 7000 start = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 7001 end = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 7002 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) 7003 max_eirp = nla_get_u32(tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) / 100; 7004 if (tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) 7005 max_bw = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 7006 if (tb_rule[NL80211_ATTR_REG_RULE_FLAGS]) 7007 flags = nla_get_u32(tb_rule[NL80211_ATTR_REG_RULE_FLAGS]); 7008 7009 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz %u mBm%s%s%s%s%s%s%s%s", 7010 start, end, max_bw, max_eirp, 7011 flags & NL80211_RRF_NO_OFDM ? " (no OFDM)" : "", 7012 flags & NL80211_RRF_NO_CCK ? " (no CCK)" : "", 7013 flags & NL80211_RRF_NO_INDOOR ? " (no indoor)" : "", 7014 flags & NL80211_RRF_NO_OUTDOOR ? " (no outdoor)" : 7015 "", 7016 flags & NL80211_RRF_DFS ? " (DFS)" : "", 7017 flags & NL80211_RRF_PTP_ONLY ? " (PTP only)" : "", 7018 flags & NL80211_RRF_PTMP_ONLY ? " (PTMP only)" : "", 7019 flags & NL80211_RRF_NO_IR ? " (no IR)" : ""); 7020 if (max_bw >= 40) 7021 nl80211_reg_rule_ht40(start, end, results); 7022 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) 7023 nl80211_reg_rule_max_eirp(start, end, max_eirp, 7024 results); 7025 } 7026 7027 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 7028 { 7029 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 7030 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 7031 nl80211_reg_rule_sec(tb_rule, results); 7032 } 7033 7034 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 7035 { 7036 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 7037 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 7038 nl80211_reg_rule_vht(tb_rule, results); 7039 } 7040 7041 return NL_SKIP; 7042 } 7043 7044 7045 static int nl80211_set_regulatory_flags(struct wpa_driver_nl80211_data *drv, 7046 struct phy_info_arg *results) 7047 { 7048 struct nl_msg *msg; 7049 7050 msg = nlmsg_alloc(); 7051 if (!msg) 7052 return -ENOMEM; 7053 7054 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 7055 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results); 7056 } 7057 7058 7059 static struct hostapd_hw_modes * 7060 wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags) 7061 { 7062 u32 feat; 7063 struct i802_bss *bss = priv; 7064 struct wpa_driver_nl80211_data *drv = bss->drv; 7065 struct nl_msg *msg; 7066 struct phy_info_arg result = { 7067 .num_modes = num_modes, 7068 .modes = NULL, 7069 .last_mode = -1, 7070 }; 7071 7072 *num_modes = 0; 7073 *flags = 0; 7074 7075 msg = nlmsg_alloc(); 7076 if (!msg) 7077 return NULL; 7078 7079 feat = get_nl80211_protocol_features(drv); 7080 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 7081 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 7082 else 7083 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 7084 7085 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 7086 if (nl80211_set_iface_id(msg, bss) < 0) 7087 goto nla_put_failure; 7088 7089 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) { 7090 nl80211_set_regulatory_flags(drv, &result); 7091 return wpa_driver_nl80211_postprocess_modes(result.modes, 7092 num_modes); 7093 } 7094 msg = NULL; 7095 nla_put_failure: 7096 nlmsg_free(msg); 7097 return NULL; 7098 } 7099 7100 7101 static int wpa_driver_nl80211_send_mntr(struct wpa_driver_nl80211_data *drv, 7102 const void *data, size_t len, 7103 int encrypt, int noack) 7104 { 7105 __u8 rtap_hdr[] = { 7106 0x00, 0x00, /* radiotap version */ 7107 0x0e, 0x00, /* radiotap length */ 7108 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */ 7109 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */ 7110 0x00, /* padding */ 7111 0x00, 0x00, /* RX and TX flags to indicate that */ 7112 0x00, 0x00, /* this is the injected frame directly */ 7113 }; 7114 struct iovec iov[2] = { 7115 { 7116 .iov_base = &rtap_hdr, 7117 .iov_len = sizeof(rtap_hdr), 7118 }, 7119 { 7120 .iov_base = (void *) data, 7121 .iov_len = len, 7122 } 7123 }; 7124 struct msghdr msg = { 7125 .msg_name = NULL, 7126 .msg_namelen = 0, 7127 .msg_iov = iov, 7128 .msg_iovlen = 2, 7129 .msg_control = NULL, 7130 .msg_controllen = 0, 7131 .msg_flags = 0, 7132 }; 7133 int res; 7134 u16 txflags = 0; 7135 7136 if (encrypt) 7137 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP; 7138 7139 if (drv->monitor_sock < 0) { 7140 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available " 7141 "for %s", __func__); 7142 return -1; 7143 } 7144 7145 if (noack) 7146 txflags |= IEEE80211_RADIOTAP_F_TX_NOACK; 7147 WPA_PUT_LE16(&rtap_hdr[12], txflags); 7148 7149 res = sendmsg(drv->monitor_sock, &msg, 0); 7150 if (res < 0) { 7151 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno)); 7152 return -1; 7153 } 7154 return 0; 7155 } 7156 7157 7158 static int wpa_driver_nl80211_send_frame(struct i802_bss *bss, 7159 const void *data, size_t len, 7160 int encrypt, int noack, 7161 unsigned int freq, int no_cck, 7162 int offchanok, unsigned int wait_time) 7163 { 7164 struct wpa_driver_nl80211_data *drv = bss->drv; 7165 u64 cookie; 7166 int res; 7167 7168 if (freq == 0 && drv->nlmode == NL80211_IFTYPE_ADHOC) { 7169 freq = nl80211_get_assoc_freq(drv); 7170 wpa_printf(MSG_DEBUG, 7171 "nl80211: send_frame - Use assoc_freq=%u for IBSS", 7172 freq); 7173 } 7174 if (freq == 0) { 7175 wpa_printf(MSG_DEBUG, "nl80211: send_frame - Use bss->freq=%u", 7176 bss->freq); 7177 freq = bss->freq; 7178 } 7179 7180 if (drv->use_monitor) { 7181 wpa_printf(MSG_DEBUG, "nl80211: send_frame(freq=%u bss->freq=%u) -> send_mntr", 7182 freq, bss->freq); 7183 return wpa_driver_nl80211_send_mntr(drv, data, len, 7184 encrypt, noack); 7185 } 7186 7187 wpa_printf(MSG_DEBUG, "nl80211: send_frame -> send_frame_cmd"); 7188 res = nl80211_send_frame_cmd(bss, freq, wait_time, data, len, 7189 &cookie, no_cck, noack, offchanok); 7190 if (res == 0 && !noack) { 7191 const struct ieee80211_mgmt *mgmt; 7192 u16 fc; 7193 7194 mgmt = (const struct ieee80211_mgmt *) data; 7195 fc = le_to_host16(mgmt->frame_control); 7196 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 7197 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_ACTION) { 7198 wpa_printf(MSG_MSGDUMP, 7199 "nl80211: Update send_action_cookie from 0x%llx to 0x%llx", 7200 (long long unsigned int) 7201 drv->send_action_cookie, 7202 (long long unsigned int) cookie); 7203 drv->send_action_cookie = cookie; 7204 } 7205 } 7206 7207 return res; 7208 } 7209 7210 7211 static int wpa_driver_nl80211_send_mlme(struct i802_bss *bss, const u8 *data, 7212 size_t data_len, int noack, 7213 unsigned int freq, int no_cck, 7214 int offchanok, 7215 unsigned int wait_time) 7216 { 7217 struct wpa_driver_nl80211_data *drv = bss->drv; 7218 struct ieee80211_mgmt *mgmt; 7219 int encrypt = 1; 7220 u16 fc; 7221 7222 mgmt = (struct ieee80211_mgmt *) data; 7223 fc = le_to_host16(mgmt->frame_control); 7224 wpa_printf(MSG_DEBUG, "nl80211: send_mlme - da= " MACSTR 7225 " noack=%d freq=%u no_cck=%d offchanok=%d wait_time=%u fc=0x%x (%s) nlmode=%d", 7226 MAC2STR(mgmt->da), noack, freq, no_cck, offchanok, wait_time, 7227 fc, fc2str(fc), drv->nlmode); 7228 7229 if ((is_sta_interface(drv->nlmode) || 7230 drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) && 7231 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 7232 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) { 7233 /* 7234 * The use of last_mgmt_freq is a bit of a hack, 7235 * but it works due to the single-threaded nature 7236 * of wpa_supplicant. 7237 */ 7238 if (freq == 0) { 7239 wpa_printf(MSG_DEBUG, "nl80211: Use last_mgmt_freq=%d", 7240 drv->last_mgmt_freq); 7241 freq = drv->last_mgmt_freq; 7242 } 7243 return nl80211_send_frame_cmd(bss, freq, 0, 7244 data, data_len, NULL, 1, noack, 7245 1); 7246 } 7247 7248 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) { 7249 if (freq == 0) { 7250 wpa_printf(MSG_DEBUG, "nl80211: Use bss->freq=%d", 7251 bss->freq); 7252 freq = bss->freq; 7253 } 7254 return nl80211_send_frame_cmd(bss, freq, 7255 (int) freq == bss->freq ? 0 : 7256 wait_time, 7257 data, data_len, 7258 &drv->send_action_cookie, 7259 no_cck, noack, offchanok); 7260 } 7261 7262 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 7263 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) { 7264 /* 7265 * Only one of the authentication frame types is encrypted. 7266 * In order for static WEP encryption to work properly (i.e., 7267 * to not encrypt the frame), we need to tell mac80211 about 7268 * the frames that must not be encrypted. 7269 */ 7270 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg); 7271 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction); 7272 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3) 7273 encrypt = 0; 7274 } 7275 7276 wpa_printf(MSG_DEBUG, "nl80211: send_mlme -> send_frame"); 7277 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 7278 noack, freq, no_cck, offchanok, 7279 wait_time); 7280 } 7281 7282 7283 static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble, 7284 int slot, int ht_opmode, int ap_isolate, 7285 int *basic_rates) 7286 { 7287 struct wpa_driver_nl80211_data *drv = bss->drv; 7288 struct nl_msg *msg; 7289 7290 msg = nlmsg_alloc(); 7291 if (!msg) 7292 return -ENOMEM; 7293 7294 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS); 7295 7296 if (cts >= 0) 7297 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts); 7298 if (preamble >= 0) 7299 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble); 7300 if (slot >= 0) 7301 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot); 7302 if (ht_opmode >= 0) 7303 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode); 7304 if (ap_isolate >= 0) 7305 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate); 7306 7307 if (basic_rates) { 7308 u8 rates[NL80211_MAX_SUPP_RATES]; 7309 u8 rates_len = 0; 7310 int i; 7311 7312 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; 7313 i++) 7314 rates[rates_len++] = basic_rates[i] / 5; 7315 7316 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates); 7317 } 7318 7319 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 7320 7321 return send_and_recv_msgs(drv, msg, NULL, NULL); 7322 nla_put_failure: 7323 nlmsg_free(msg); 7324 return -ENOBUFS; 7325 } 7326 7327 7328 static int wpa_driver_nl80211_set_acl(void *priv, 7329 struct hostapd_acl_params *params) 7330 { 7331 struct i802_bss *bss = priv; 7332 struct wpa_driver_nl80211_data *drv = bss->drv; 7333 struct nl_msg *msg; 7334 struct nlattr *acl; 7335 unsigned int i; 7336 int ret = 0; 7337 7338 if (!(drv->capa.max_acl_mac_addrs)) 7339 return -ENOTSUP; 7340 7341 if (params->num_mac_acl > drv->capa.max_acl_mac_addrs) 7342 return -ENOTSUP; 7343 7344 msg = nlmsg_alloc(); 7345 if (!msg) 7346 return -ENOMEM; 7347 7348 wpa_printf(MSG_DEBUG, "nl80211: Set %s ACL (num_mac_acl=%u)", 7349 params->acl_policy ? "Accept" : "Deny", params->num_mac_acl); 7350 7351 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_MAC_ACL); 7352 7353 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7354 7355 NLA_PUT_U32(msg, NL80211_ATTR_ACL_POLICY, params->acl_policy ? 7356 NL80211_ACL_POLICY_DENY_UNLESS_LISTED : 7357 NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED); 7358 7359 acl = nla_nest_start(msg, NL80211_ATTR_MAC_ADDRS); 7360 if (acl == NULL) 7361 goto nla_put_failure; 7362 7363 for (i = 0; i < params->num_mac_acl; i++) 7364 NLA_PUT(msg, i + 1, ETH_ALEN, params->mac_acl[i].addr); 7365 7366 nla_nest_end(msg, acl); 7367 7368 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7369 msg = NULL; 7370 if (ret) { 7371 wpa_printf(MSG_DEBUG, "nl80211: Failed to set MAC ACL: %d (%s)", 7372 ret, strerror(-ret)); 7373 } 7374 7375 nla_put_failure: 7376 nlmsg_free(msg); 7377 7378 return ret; 7379 } 7380 7381 7382 static int wpa_driver_nl80211_set_ap(void *priv, 7383 struct wpa_driver_ap_params *params) 7384 { 7385 struct i802_bss *bss = priv; 7386 struct wpa_driver_nl80211_data *drv = bss->drv; 7387 struct nl_msg *msg; 7388 u8 cmd = NL80211_CMD_NEW_BEACON; 7389 int ret; 7390 int beacon_set; 7391 int ifindex = if_nametoindex(bss->ifname); 7392 int num_suites; 7393 u32 suites[10], suite; 7394 u32 ver; 7395 7396 beacon_set = bss->beacon_set; 7397 7398 msg = nlmsg_alloc(); 7399 if (!msg) 7400 return -ENOMEM; 7401 7402 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)", 7403 beacon_set); 7404 if (beacon_set) 7405 cmd = NL80211_CMD_SET_BEACON; 7406 7407 nl80211_cmd(drv, msg, 0, cmd); 7408 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon head", 7409 params->head, params->head_len); 7410 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head); 7411 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon tail", 7412 params->tail, params->tail_len); 7413 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail); 7414 wpa_printf(MSG_DEBUG, "nl80211: ifindex=%d", ifindex); 7415 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 7416 wpa_printf(MSG_DEBUG, "nl80211: beacon_int=%d", params->beacon_int); 7417 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int); 7418 wpa_printf(MSG_DEBUG, "nl80211: dtim_period=%d", params->dtim_period); 7419 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period); 7420 wpa_hexdump_ascii(MSG_DEBUG, "nl80211: ssid", 7421 params->ssid, params->ssid_len); 7422 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7423 params->ssid); 7424 if (params->proberesp && params->proberesp_len) { 7425 wpa_hexdump(MSG_DEBUG, "nl80211: proberesp (offload)", 7426 params->proberesp, params->proberesp_len); 7427 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len, 7428 params->proberesp); 7429 } 7430 switch (params->hide_ssid) { 7431 case NO_SSID_HIDING: 7432 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID not in use"); 7433 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 7434 NL80211_HIDDEN_SSID_NOT_IN_USE); 7435 break; 7436 case HIDDEN_SSID_ZERO_LEN: 7437 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero len"); 7438 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 7439 NL80211_HIDDEN_SSID_ZERO_LEN); 7440 break; 7441 case HIDDEN_SSID_ZERO_CONTENTS: 7442 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero contents"); 7443 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 7444 NL80211_HIDDEN_SSID_ZERO_CONTENTS); 7445 break; 7446 } 7447 wpa_printf(MSG_DEBUG, "nl80211: privacy=%d", params->privacy); 7448 if (params->privacy) 7449 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 7450 wpa_printf(MSG_DEBUG, "nl80211: auth_algs=0x%x", params->auth_algs); 7451 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) == 7452 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) { 7453 /* Leave out the attribute */ 7454 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED) 7455 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 7456 NL80211_AUTHTYPE_SHARED_KEY); 7457 else 7458 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 7459 NL80211_AUTHTYPE_OPEN_SYSTEM); 7460 7461 wpa_printf(MSG_DEBUG, "nl80211: wpa_version=0x%x", params->wpa_version); 7462 ver = 0; 7463 if (params->wpa_version & WPA_PROTO_WPA) 7464 ver |= NL80211_WPA_VERSION_1; 7465 if (params->wpa_version & WPA_PROTO_RSN) 7466 ver |= NL80211_WPA_VERSION_2; 7467 if (ver) 7468 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 7469 7470 wpa_printf(MSG_DEBUG, "nl80211: key_mgmt_suites=0x%x", 7471 params->key_mgmt_suites); 7472 num_suites = 0; 7473 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X) 7474 suites[num_suites++] = WLAN_AKM_SUITE_8021X; 7475 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK) 7476 suites[num_suites++] = WLAN_AKM_SUITE_PSK; 7477 if (num_suites) { 7478 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES, 7479 num_suites * sizeof(u32), suites); 7480 } 7481 7482 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X && 7483 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)) 7484 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT); 7485 7486 wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x", 7487 params->pairwise_ciphers); 7488 num_suites = wpa_cipher_to_cipher_suites(params->pairwise_ciphers, 7489 suites, ARRAY_SIZE(suites)); 7490 if (num_suites) { 7491 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, 7492 num_suites * sizeof(u32), suites); 7493 } 7494 7495 wpa_printf(MSG_DEBUG, "nl80211: group_cipher=0x%x", 7496 params->group_cipher); 7497 suite = wpa_cipher_to_cipher_suite(params->group_cipher); 7498 if (suite) 7499 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, suite); 7500 7501 if (params->beacon_ies) { 7502 wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies", 7503 params->beacon_ies); 7504 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies), 7505 wpabuf_head(params->beacon_ies)); 7506 } 7507 if (params->proberesp_ies) { 7508 wpa_hexdump_buf(MSG_DEBUG, "nl80211: proberesp_ies", 7509 params->proberesp_ies); 7510 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, 7511 wpabuf_len(params->proberesp_ies), 7512 wpabuf_head(params->proberesp_ies)); 7513 } 7514 if (params->assocresp_ies) { 7515 wpa_hexdump_buf(MSG_DEBUG, "nl80211: assocresp_ies", 7516 params->assocresp_ies); 7517 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP, 7518 wpabuf_len(params->assocresp_ies), 7519 wpabuf_head(params->assocresp_ies)); 7520 } 7521 7522 if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) { 7523 wpa_printf(MSG_DEBUG, "nl80211: ap_max_inactivity=%d", 7524 params->ap_max_inactivity); 7525 NLA_PUT_U16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT, 7526 params->ap_max_inactivity); 7527 } 7528 7529 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7530 if (ret) { 7531 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)", 7532 ret, strerror(-ret)); 7533 } else { 7534 bss->beacon_set = 1; 7535 nl80211_set_bss(bss, params->cts_protect, params->preamble, 7536 params->short_slot_time, params->ht_opmode, 7537 params->isolate, params->basic_rates); 7538 if (beacon_set && params->freq && 7539 params->freq->bandwidth != bss->bandwidth) { 7540 wpa_printf(MSG_DEBUG, 7541 "nl80211: Update BSS %s bandwidth: %d -> %d", 7542 bss->ifname, bss->bandwidth, 7543 params->freq->bandwidth); 7544 ret = nl80211_set_channel(bss, params->freq, 1); 7545 if (ret) { 7546 wpa_printf(MSG_DEBUG, 7547 "nl80211: Frequency set failed: %d (%s)", 7548 ret, strerror(-ret)); 7549 } else { 7550 wpa_printf(MSG_DEBUG, 7551 "nl80211: Frequency set succeeded for ht2040 coex"); 7552 bss->bandwidth = params->freq->bandwidth; 7553 } 7554 } else if (!beacon_set) { 7555 /* 7556 * cfg80211 updates the driver on frequence change in AP 7557 * mode only at the point when beaconing is started, so 7558 * set the initial value here. 7559 */ 7560 bss->bandwidth = params->freq->bandwidth; 7561 } 7562 } 7563 return ret; 7564 nla_put_failure: 7565 nlmsg_free(msg); 7566 return -ENOBUFS; 7567 } 7568 7569 7570 static int nl80211_put_freq_params(struct nl_msg *msg, 7571 struct hostapd_freq_params *freq) 7572 { 7573 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); 7574 if (freq->vht_enabled) { 7575 switch (freq->bandwidth) { 7576 case 20: 7577 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7578 NL80211_CHAN_WIDTH_20); 7579 break; 7580 case 40: 7581 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7582 NL80211_CHAN_WIDTH_40); 7583 break; 7584 case 80: 7585 if (freq->center_freq2) 7586 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7587 NL80211_CHAN_WIDTH_80P80); 7588 else 7589 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7590 NL80211_CHAN_WIDTH_80); 7591 break; 7592 case 160: 7593 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7594 NL80211_CHAN_WIDTH_160); 7595 break; 7596 default: 7597 return -EINVAL; 7598 } 7599 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); 7600 if (freq->center_freq2) 7601 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, 7602 freq->center_freq2); 7603 } else if (freq->ht_enabled) { 7604 switch (freq->sec_channel_offset) { 7605 case -1: 7606 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 7607 NL80211_CHAN_HT40MINUS); 7608 break; 7609 case 1: 7610 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 7611 NL80211_CHAN_HT40PLUS); 7612 break; 7613 default: 7614 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 7615 NL80211_CHAN_HT20); 7616 break; 7617 } 7618 } 7619 return 0; 7620 7621 nla_put_failure: 7622 return -ENOBUFS; 7623 } 7624 7625 7626 static int nl80211_set_channel(struct i802_bss *bss, 7627 struct hostapd_freq_params *freq, int set_chan) 7628 { 7629 struct wpa_driver_nl80211_data *drv = bss->drv; 7630 struct nl_msg *msg; 7631 int ret; 7632 7633 wpa_printf(MSG_DEBUG, 7634 "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d, bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)", 7635 freq->freq, freq->ht_enabled, freq->vht_enabled, 7636 freq->bandwidth, freq->center_freq1, freq->center_freq2); 7637 msg = nlmsg_alloc(); 7638 if (!msg) 7639 return -1; 7640 7641 nl80211_cmd(drv, msg, 0, set_chan ? NL80211_CMD_SET_CHANNEL : 7642 NL80211_CMD_SET_WIPHY); 7643 7644 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7645 if (nl80211_put_freq_params(msg, freq) < 0) 7646 goto nla_put_failure; 7647 7648 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7649 msg = NULL; 7650 if (ret == 0) { 7651 bss->freq = freq->freq; 7652 return 0; 7653 } 7654 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): " 7655 "%d (%s)", freq->freq, ret, strerror(-ret)); 7656 nla_put_failure: 7657 nlmsg_free(msg); 7658 return -1; 7659 } 7660 7661 7662 static u32 sta_flags_nl80211(int flags) 7663 { 7664 u32 f = 0; 7665 7666 if (flags & WPA_STA_AUTHORIZED) 7667 f |= BIT(NL80211_STA_FLAG_AUTHORIZED); 7668 if (flags & WPA_STA_WMM) 7669 f |= BIT(NL80211_STA_FLAG_WME); 7670 if (flags & WPA_STA_SHORT_PREAMBLE) 7671 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); 7672 if (flags & WPA_STA_MFP) 7673 f |= BIT(NL80211_STA_FLAG_MFP); 7674 if (flags & WPA_STA_TDLS_PEER) 7675 f |= BIT(NL80211_STA_FLAG_TDLS_PEER); 7676 7677 return f; 7678 } 7679 7680 7681 static int wpa_driver_nl80211_sta_add(void *priv, 7682 struct hostapd_sta_add_params *params) 7683 { 7684 struct i802_bss *bss = priv; 7685 struct wpa_driver_nl80211_data *drv = bss->drv; 7686 struct nl_msg *msg; 7687 struct nl80211_sta_flag_update upd; 7688 int ret = -ENOBUFS; 7689 7690 if ((params->flags & WPA_STA_TDLS_PEER) && 7691 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 7692 return -EOPNOTSUPP; 7693 7694 msg = nlmsg_alloc(); 7695 if (!msg) 7696 return -ENOMEM; 7697 7698 wpa_printf(MSG_DEBUG, "nl80211: %s STA " MACSTR, 7699 params->set ? "Set" : "Add", MAC2STR(params->addr)); 7700 nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION : 7701 NL80211_CMD_NEW_STATION); 7702 7703 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 7704 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr); 7705 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len, 7706 params->supp_rates); 7707 wpa_hexdump(MSG_DEBUG, " * supported rates", params->supp_rates, 7708 params->supp_rates_len); 7709 if (!params->set) { 7710 if (params->aid) { 7711 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid); 7712 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid); 7713 } else { 7714 /* 7715 * cfg80211 validates that AID is non-zero, so we have 7716 * to make this a non-zero value for the TDLS case where 7717 * a dummy STA entry is used for now. 7718 */ 7719 wpa_printf(MSG_DEBUG, " * aid=1 (TDLS workaround)"); 7720 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, 1); 7721 } 7722 wpa_printf(MSG_DEBUG, " * listen_interval=%u", 7723 params->listen_interval); 7724 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, 7725 params->listen_interval); 7726 } else if (params->aid && (params->flags & WPA_STA_TDLS_PEER)) { 7727 wpa_printf(MSG_DEBUG, " * peer_aid=%u", params->aid); 7728 NLA_PUT_U16(msg, NL80211_ATTR_PEER_AID, params->aid); 7729 } 7730 if (params->ht_capabilities) { 7731 wpa_hexdump(MSG_DEBUG, " * ht_capabilities", 7732 (u8 *) params->ht_capabilities, 7733 sizeof(*params->ht_capabilities)); 7734 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, 7735 sizeof(*params->ht_capabilities), 7736 params->ht_capabilities); 7737 } 7738 7739 if (params->vht_capabilities) { 7740 wpa_hexdump(MSG_DEBUG, " * vht_capabilities", 7741 (u8 *) params->vht_capabilities, 7742 sizeof(*params->vht_capabilities)); 7743 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, 7744 sizeof(*params->vht_capabilities), 7745 params->vht_capabilities); 7746 } 7747 7748 if (params->vht_opmode_enabled) { 7749 wpa_printf(MSG_DEBUG, " * opmode=%u", params->vht_opmode); 7750 NLA_PUT_U8(msg, NL80211_ATTR_OPMODE_NOTIF, 7751 params->vht_opmode); 7752 } 7753 7754 wpa_printf(MSG_DEBUG, " * capability=0x%x", params->capability); 7755 NLA_PUT_U16(msg, NL80211_ATTR_STA_CAPABILITY, params->capability); 7756 7757 if (params->ext_capab) { 7758 wpa_hexdump(MSG_DEBUG, " * ext_capab", 7759 params->ext_capab, params->ext_capab_len); 7760 NLA_PUT(msg, NL80211_ATTR_STA_EXT_CAPABILITY, 7761 params->ext_capab_len, params->ext_capab); 7762 } 7763 7764 if (params->supp_channels) { 7765 wpa_hexdump(MSG_DEBUG, " * supported channels", 7766 params->supp_channels, params->supp_channels_len); 7767 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_CHANNELS, 7768 params->supp_channels_len, params->supp_channels); 7769 } 7770 7771 if (params->supp_oper_classes) { 7772 wpa_hexdump(MSG_DEBUG, " * supported operating classes", 7773 params->supp_oper_classes, 7774 params->supp_oper_classes_len); 7775 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES, 7776 params->supp_oper_classes_len, 7777 params->supp_oper_classes); 7778 } 7779 7780 os_memset(&upd, 0, sizeof(upd)); 7781 upd.mask = sta_flags_nl80211(params->flags); 7782 upd.set = upd.mask; 7783 wpa_printf(MSG_DEBUG, " * flags set=0x%x mask=0x%x", 7784 upd.set, upd.mask); 7785 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 7786 7787 if (params->flags & WPA_STA_WMM) { 7788 struct nlattr *wme = nla_nest_start(msg, NL80211_ATTR_STA_WME); 7789 7790 if (!wme) 7791 goto nla_put_failure; 7792 7793 wpa_printf(MSG_DEBUG, " * qosinfo=0x%x", params->qosinfo); 7794 NLA_PUT_U8(msg, NL80211_STA_WME_UAPSD_QUEUES, 7795 params->qosinfo & WMM_QOSINFO_STA_AC_MASK); 7796 NLA_PUT_U8(msg, NL80211_STA_WME_MAX_SP, 7797 (params->qosinfo >> WMM_QOSINFO_STA_SP_SHIFT) & 7798 WMM_QOSINFO_STA_SP_MASK); 7799 nla_nest_end(msg, wme); 7800 } 7801 7802 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7803 msg = NULL; 7804 if (ret) 7805 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION " 7806 "result: %d (%s)", params->set ? "SET" : "NEW", ret, 7807 strerror(-ret)); 7808 if (ret == -EEXIST) 7809 ret = 0; 7810 nla_put_failure: 7811 nlmsg_free(msg); 7812 return ret; 7813 } 7814 7815 7816 static void rtnl_neigh_delete_fdb_entry(struct i802_bss *bss, const u8 *addr) 7817 { 7818 #ifdef CONFIG_LIBNL3_ROUTE 7819 struct wpa_driver_nl80211_data *drv = bss->drv; 7820 struct rtnl_neigh *rn; 7821 struct nl_addr *nl_addr; 7822 int err; 7823 7824 rn = rtnl_neigh_alloc(); 7825 if (!rn) 7826 return; 7827 7828 rtnl_neigh_set_family(rn, AF_BRIDGE); 7829 rtnl_neigh_set_ifindex(rn, bss->ifindex); 7830 nl_addr = nl_addr_build(AF_BRIDGE, (void *) addr, ETH_ALEN); 7831 if (!nl_addr) { 7832 rtnl_neigh_put(rn); 7833 return; 7834 } 7835 rtnl_neigh_set_lladdr(rn, nl_addr); 7836 7837 err = rtnl_neigh_delete(drv->rtnl_sk, rn, 0); 7838 if (err < 0) { 7839 wpa_printf(MSG_DEBUG, "nl80211: bridge FDB entry delete for " 7840 MACSTR " ifindex=%d failed: %s", MAC2STR(addr), 7841 bss->ifindex, nl_geterror(err)); 7842 } else { 7843 wpa_printf(MSG_DEBUG, "nl80211: deleted bridge FDB entry for " 7844 MACSTR, MAC2STR(addr)); 7845 } 7846 7847 nl_addr_put(nl_addr); 7848 rtnl_neigh_put(rn); 7849 #endif /* CONFIG_LIBNL3_ROUTE */ 7850 } 7851 7852 7853 static int wpa_driver_nl80211_sta_remove(struct i802_bss *bss, const u8 *addr) 7854 { 7855 struct wpa_driver_nl80211_data *drv = bss->drv; 7856 struct nl_msg *msg; 7857 int ret; 7858 7859 msg = nlmsg_alloc(); 7860 if (!msg) 7861 return -ENOMEM; 7862 7863 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 7864 7865 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 7866 if_nametoindex(bss->ifname)); 7867 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 7868 7869 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7870 wpa_printf(MSG_DEBUG, "nl80211: sta_remove -> DEL_STATION %s " MACSTR 7871 " --> %d (%s)", 7872 bss->ifname, MAC2STR(addr), ret, strerror(-ret)); 7873 7874 if (drv->rtnl_sk) 7875 rtnl_neigh_delete_fdb_entry(bss, addr); 7876 7877 if (ret == -ENOENT) 7878 return 0; 7879 return ret; 7880 nla_put_failure: 7881 nlmsg_free(msg); 7882 return -ENOBUFS; 7883 } 7884 7885 7886 static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, 7887 int ifidx) 7888 { 7889 struct nl_msg *msg; 7890 struct wpa_driver_nl80211_data *drv2; 7891 7892 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx); 7893 7894 /* stop listening for EAPOL on this interface */ 7895 dl_list_for_each(drv2, &drv->global->interfaces, 7896 struct wpa_driver_nl80211_data, list) 7897 del_ifidx(drv2, ifidx); 7898 7899 msg = nlmsg_alloc(); 7900 if (!msg) 7901 goto nla_put_failure; 7902 7903 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 7904 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx); 7905 7906 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 7907 return; 7908 msg = NULL; 7909 nla_put_failure: 7910 nlmsg_free(msg); 7911 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx); 7912 } 7913 7914 7915 static const char * nl80211_iftype_str(enum nl80211_iftype mode) 7916 { 7917 switch (mode) { 7918 case NL80211_IFTYPE_ADHOC: 7919 return "ADHOC"; 7920 case NL80211_IFTYPE_STATION: 7921 return "STATION"; 7922 case NL80211_IFTYPE_AP: 7923 return "AP"; 7924 case NL80211_IFTYPE_AP_VLAN: 7925 return "AP_VLAN"; 7926 case NL80211_IFTYPE_WDS: 7927 return "WDS"; 7928 case NL80211_IFTYPE_MONITOR: 7929 return "MONITOR"; 7930 case NL80211_IFTYPE_MESH_POINT: 7931 return "MESH_POINT"; 7932 case NL80211_IFTYPE_P2P_CLIENT: 7933 return "P2P_CLIENT"; 7934 case NL80211_IFTYPE_P2P_GO: 7935 return "P2P_GO"; 7936 case NL80211_IFTYPE_P2P_DEVICE: 7937 return "P2P_DEVICE"; 7938 default: 7939 return "unknown"; 7940 } 7941 } 7942 7943 7944 static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv, 7945 const char *ifname, 7946 enum nl80211_iftype iftype, 7947 const u8 *addr, int wds, 7948 int (*handler)(struct nl_msg *, void *), 7949 void *arg) 7950 { 7951 struct nl_msg *msg; 7952 int ifidx; 7953 int ret = -ENOBUFS; 7954 7955 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)", 7956 iftype, nl80211_iftype_str(iftype)); 7957 7958 msg = nlmsg_alloc(); 7959 if (!msg) 7960 return -1; 7961 7962 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE); 7963 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 7964 goto nla_put_failure; 7965 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname); 7966 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype); 7967 7968 if (iftype == NL80211_IFTYPE_MONITOR) { 7969 struct nlattr *flags; 7970 7971 flags = nla_nest_start(msg, NL80211_ATTR_MNTR_FLAGS); 7972 if (!flags) 7973 goto nla_put_failure; 7974 7975 NLA_PUT_FLAG(msg, NL80211_MNTR_FLAG_COOK_FRAMES); 7976 7977 nla_nest_end(msg, flags); 7978 } else if (wds) { 7979 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds); 7980 } 7981 7982 /* 7983 * Tell cfg80211 that the interface belongs to the socket that created 7984 * it, and the interface should be deleted when the socket is closed. 7985 */ 7986 NLA_PUT_FLAG(msg, NL80211_ATTR_IFACE_SOCKET_OWNER); 7987 7988 ret = send_and_recv_msgs(drv, msg, handler, arg); 7989 msg = NULL; 7990 if (ret) { 7991 nla_put_failure: 7992 nlmsg_free(msg); 7993 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)", 7994 ifname, ret, strerror(-ret)); 7995 return ret; 7996 } 7997 7998 if (iftype == NL80211_IFTYPE_P2P_DEVICE) 7999 return 0; 8000 8001 ifidx = if_nametoindex(ifname); 8002 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d", 8003 ifname, ifidx); 8004 8005 if (ifidx <= 0) 8006 return -1; 8007 8008 /* 8009 * Some virtual interfaces need to process EAPOL packets and events on 8010 * the parent interface. This is used mainly with hostapd. 8011 */ 8012 if (drv->hostapd || 8013 iftype == NL80211_IFTYPE_AP_VLAN || 8014 iftype == NL80211_IFTYPE_WDS || 8015 iftype == NL80211_IFTYPE_MONITOR) { 8016 /* start listening for EAPOL on this interface */ 8017 add_ifidx(drv, ifidx); 8018 } 8019 8020 if (addr && iftype != NL80211_IFTYPE_MONITOR && 8021 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) { 8022 nl80211_remove_iface(drv, ifidx); 8023 return -1; 8024 } 8025 8026 return ifidx; 8027 } 8028 8029 8030 static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv, 8031 const char *ifname, enum nl80211_iftype iftype, 8032 const u8 *addr, int wds, 8033 int (*handler)(struct nl_msg *, void *), 8034 void *arg, int use_existing) 8035 { 8036 int ret; 8037 8038 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds, handler, 8039 arg); 8040 8041 /* if error occurred and interface exists already */ 8042 if (ret == -ENFILE && if_nametoindex(ifname)) { 8043 if (use_existing) { 8044 wpa_printf(MSG_DEBUG, "nl80211: Continue using existing interface %s", 8045 ifname); 8046 if (addr && iftype != NL80211_IFTYPE_MONITOR && 8047 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 8048 addr) < 0 && 8049 (linux_set_iface_flags(drv->global->ioctl_sock, 8050 ifname, 0) < 0 || 8051 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 8052 addr) < 0 || 8053 linux_set_iface_flags(drv->global->ioctl_sock, 8054 ifname, 1) < 0)) 8055 return -1; 8056 return -ENFILE; 8057 } 8058 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname); 8059 8060 /* Try to remove the interface that was already there. */ 8061 nl80211_remove_iface(drv, if_nametoindex(ifname)); 8062 8063 /* Try to create the interface again */ 8064 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, 8065 wds, handler, arg); 8066 } 8067 8068 if (ret >= 0 && is_p2p_net_interface(iftype)) 8069 nl80211_disable_11b_rates(drv, ret, 1); 8070 8071 return ret; 8072 } 8073 8074 8075 static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok) 8076 { 8077 struct ieee80211_hdr *hdr; 8078 u16 fc; 8079 union wpa_event_data event; 8080 8081 hdr = (struct ieee80211_hdr *) buf; 8082 fc = le_to_host16(hdr->frame_control); 8083 8084 os_memset(&event, 0, sizeof(event)); 8085 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 8086 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 8087 event.tx_status.dst = hdr->addr1; 8088 event.tx_status.data = buf; 8089 event.tx_status.data_len = len; 8090 event.tx_status.ack = ok; 8091 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event); 8092 } 8093 8094 8095 static void from_unknown_sta(struct wpa_driver_nl80211_data *drv, 8096 u8 *buf, size_t len) 8097 { 8098 struct ieee80211_hdr *hdr = (void *)buf; 8099 u16 fc; 8100 union wpa_event_data event; 8101 8102 if (len < sizeof(*hdr)) 8103 return; 8104 8105 fc = le_to_host16(hdr->frame_control); 8106 8107 os_memset(&event, 0, sizeof(event)); 8108 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len); 8109 event.rx_from_unknown.addr = hdr->addr2; 8110 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) == 8111 (WLAN_FC_FROMDS | WLAN_FC_TODS); 8112 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 8113 } 8114 8115 8116 static void handle_frame(struct wpa_driver_nl80211_data *drv, 8117 u8 *buf, size_t len, int datarate, int ssi_signal) 8118 { 8119 struct ieee80211_hdr *hdr; 8120 u16 fc; 8121 union wpa_event_data event; 8122 8123 hdr = (struct ieee80211_hdr *) buf; 8124 fc = le_to_host16(hdr->frame_control); 8125 8126 switch (WLAN_FC_GET_TYPE(fc)) { 8127 case WLAN_FC_TYPE_MGMT: 8128 os_memset(&event, 0, sizeof(event)); 8129 event.rx_mgmt.frame = buf; 8130 event.rx_mgmt.frame_len = len; 8131 event.rx_mgmt.datarate = datarate; 8132 event.rx_mgmt.ssi_signal = ssi_signal; 8133 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 8134 break; 8135 case WLAN_FC_TYPE_CTRL: 8136 /* can only get here with PS-Poll frames */ 8137 wpa_printf(MSG_DEBUG, "CTRL"); 8138 from_unknown_sta(drv, buf, len); 8139 break; 8140 case WLAN_FC_TYPE_DATA: 8141 from_unknown_sta(drv, buf, len); 8142 break; 8143 } 8144 } 8145 8146 8147 static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx) 8148 { 8149 struct wpa_driver_nl80211_data *drv = eloop_ctx; 8150 int len; 8151 unsigned char buf[3000]; 8152 struct ieee80211_radiotap_iterator iter; 8153 int ret; 8154 int datarate = 0, ssi_signal = 0; 8155 int injected = 0, failed = 0, rxflags = 0; 8156 8157 len = recv(sock, buf, sizeof(buf), 0); 8158 if (len < 0) { 8159 wpa_printf(MSG_ERROR, "nl80211: Monitor socket recv failed: %s", 8160 strerror(errno)); 8161 return; 8162 } 8163 8164 if (ieee80211_radiotap_iterator_init(&iter, (void *) buf, len, NULL)) { 8165 wpa_printf(MSG_INFO, "nl80211: received invalid radiotap frame"); 8166 return; 8167 } 8168 8169 while (1) { 8170 ret = ieee80211_radiotap_iterator_next(&iter); 8171 if (ret == -ENOENT) 8172 break; 8173 if (ret) { 8174 wpa_printf(MSG_INFO, "nl80211: received invalid radiotap frame (%d)", 8175 ret); 8176 return; 8177 } 8178 switch (iter.this_arg_index) { 8179 case IEEE80211_RADIOTAP_FLAGS: 8180 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS) 8181 len -= 4; 8182 break; 8183 case IEEE80211_RADIOTAP_RX_FLAGS: 8184 rxflags = 1; 8185 break; 8186 case IEEE80211_RADIOTAP_TX_FLAGS: 8187 injected = 1; 8188 failed = le_to_host16((*(uint16_t *) iter.this_arg)) & 8189 IEEE80211_RADIOTAP_F_TX_FAIL; 8190 break; 8191 case IEEE80211_RADIOTAP_DATA_RETRIES: 8192 break; 8193 case IEEE80211_RADIOTAP_CHANNEL: 8194 /* TODO: convert from freq/flags to channel number */ 8195 break; 8196 case IEEE80211_RADIOTAP_RATE: 8197 datarate = *iter.this_arg * 5; 8198 break; 8199 case IEEE80211_RADIOTAP_DBM_ANTSIGNAL: 8200 ssi_signal = (s8) *iter.this_arg; 8201 break; 8202 } 8203 } 8204 8205 if (rxflags && injected) 8206 return; 8207 8208 if (!injected) 8209 handle_frame(drv, buf + iter._max_length, 8210 len - iter._max_length, datarate, ssi_signal); 8211 else 8212 handle_tx_callback(drv->ctx, buf + iter._max_length, 8213 len - iter._max_length, !failed); 8214 } 8215 8216 8217 /* 8218 * we post-process the filter code later and rewrite 8219 * this to the offset to the last instruction 8220 */ 8221 #define PASS 0xFF 8222 #define FAIL 0xFE 8223 8224 static struct sock_filter msock_filter_insns[] = { 8225 /* 8226 * do a little-endian load of the radiotap length field 8227 */ 8228 /* load lower byte into A */ 8229 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2), 8230 /* put it into X (== index register) */ 8231 BPF_STMT(BPF_MISC| BPF_TAX, 0), 8232 /* load upper byte into A */ 8233 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3), 8234 /* left-shift it by 8 */ 8235 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8), 8236 /* or with X */ 8237 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0), 8238 /* put result into X */ 8239 BPF_STMT(BPF_MISC| BPF_TAX, 0), 8240 8241 /* 8242 * Allow management frames through, this also gives us those 8243 * management frames that we sent ourselves with status 8244 */ 8245 /* load the lower byte of the IEEE 802.11 frame control field */ 8246 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 8247 /* mask off frame type and version */ 8248 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF), 8249 /* accept frame if it's both 0, fall through otherwise */ 8250 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0), 8251 8252 /* 8253 * TODO: add a bit to radiotap RX flags that indicates 8254 * that the sending station is not associated, then 8255 * add a filter here that filters on our DA and that flag 8256 * to allow us to deauth frames to that bad station. 8257 * 8258 * For now allow all To DS data frames through. 8259 */ 8260 /* load the IEEE 802.11 frame control field */ 8261 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0), 8262 /* mask off frame type, version and DS status */ 8263 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03), 8264 /* accept frame if version 0, type 2 and To DS, fall through otherwise 8265 */ 8266 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0), 8267 8268 #if 0 8269 /* 8270 * drop non-data frames 8271 */ 8272 /* load the lower byte of the frame control field */ 8273 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 8274 /* mask off QoS bit */ 8275 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c), 8276 /* drop non-data frames */ 8277 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL), 8278 #endif 8279 /* load the upper byte of the frame control field */ 8280 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1), 8281 /* mask off toDS/fromDS */ 8282 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03), 8283 /* accept WDS frames */ 8284 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0), 8285 8286 /* 8287 * add header length to index 8288 */ 8289 /* load the lower byte of the frame control field */ 8290 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 8291 /* mask off QoS bit */ 8292 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80), 8293 /* right shift it by 6 to give 0 or 2 */ 8294 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6), 8295 /* add data frame header length */ 8296 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24), 8297 /* add index, was start of 802.11 header */ 8298 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), 8299 /* move to index, now start of LL header */ 8300 BPF_STMT(BPF_MISC | BPF_TAX, 0), 8301 8302 /* 8303 * Accept empty data frames, we use those for 8304 * polling activity. 8305 */ 8306 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0), 8307 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0), 8308 8309 /* 8310 * Accept EAPOL frames 8311 */ 8312 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0), 8313 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL), 8314 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4), 8315 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL), 8316 8317 /* keep these last two statements or change the code below */ 8318 /* return 0 == "DROP" */ 8319 BPF_STMT(BPF_RET | BPF_K, 0), 8320 /* return ~0 == "keep all" */ 8321 BPF_STMT(BPF_RET | BPF_K, ~0), 8322 }; 8323 8324 static struct sock_fprog msock_filter = { 8325 .len = ARRAY_SIZE(msock_filter_insns), 8326 .filter = msock_filter_insns, 8327 }; 8328 8329 8330 static int add_monitor_filter(int s) 8331 { 8332 int idx; 8333 8334 /* rewrite all PASS/FAIL jump offsets */ 8335 for (idx = 0; idx < msock_filter.len; idx++) { 8336 struct sock_filter *insn = &msock_filter_insns[idx]; 8337 8338 if (BPF_CLASS(insn->code) == BPF_JMP) { 8339 if (insn->code == (BPF_JMP|BPF_JA)) { 8340 if (insn->k == PASS) 8341 insn->k = msock_filter.len - idx - 2; 8342 else if (insn->k == FAIL) 8343 insn->k = msock_filter.len - idx - 3; 8344 } 8345 8346 if (insn->jt == PASS) 8347 insn->jt = msock_filter.len - idx - 2; 8348 else if (insn->jt == FAIL) 8349 insn->jt = msock_filter.len - idx - 3; 8350 8351 if (insn->jf == PASS) 8352 insn->jf = msock_filter.len - idx - 2; 8353 else if (insn->jf == FAIL) 8354 insn->jf = msock_filter.len - idx - 3; 8355 } 8356 } 8357 8358 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER, 8359 &msock_filter, sizeof(msock_filter))) { 8360 wpa_printf(MSG_ERROR, "nl80211: setsockopt(SO_ATTACH_FILTER) failed: %s", 8361 strerror(errno)); 8362 return -1; 8363 } 8364 8365 return 0; 8366 } 8367 8368 8369 static void nl80211_remove_monitor_interface( 8370 struct wpa_driver_nl80211_data *drv) 8371 { 8372 if (drv->monitor_refcount > 0) 8373 drv->monitor_refcount--; 8374 wpa_printf(MSG_DEBUG, "nl80211: Remove monitor interface: refcount=%d", 8375 drv->monitor_refcount); 8376 if (drv->monitor_refcount > 0) 8377 return; 8378 8379 if (drv->monitor_ifidx >= 0) { 8380 nl80211_remove_iface(drv, drv->monitor_ifidx); 8381 drv->monitor_ifidx = -1; 8382 } 8383 if (drv->monitor_sock >= 0) { 8384 eloop_unregister_read_sock(drv->monitor_sock); 8385 close(drv->monitor_sock); 8386 drv->monitor_sock = -1; 8387 } 8388 } 8389 8390 8391 static int 8392 nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv) 8393 { 8394 char buf[IFNAMSIZ]; 8395 struct sockaddr_ll ll; 8396 int optval; 8397 socklen_t optlen; 8398 8399 if (drv->monitor_ifidx >= 0) { 8400 drv->monitor_refcount++; 8401 wpa_printf(MSG_DEBUG, "nl80211: Re-use existing monitor interface: refcount=%d", 8402 drv->monitor_refcount); 8403 return 0; 8404 } 8405 8406 if (os_strncmp(drv->first_bss->ifname, "p2p-", 4) == 0) { 8407 /* 8408 * P2P interface name is of the format p2p-%s-%d. For monitor 8409 * interface name corresponding to P2P GO, replace "p2p-" with 8410 * "mon-" to retain the same interface name length and to 8411 * indicate that it is a monitor interface. 8412 */ 8413 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss->ifname + 4); 8414 } else { 8415 /* Non-P2P interface with AP functionality. */ 8416 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss->ifname); 8417 } 8418 8419 buf[IFNAMSIZ - 1] = '\0'; 8420 8421 drv->monitor_ifidx = 8422 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL, 8423 0, NULL, NULL, 0); 8424 8425 if (drv->monitor_ifidx == -EOPNOTSUPP) { 8426 /* 8427 * This is backward compatibility for a few versions of 8428 * the kernel only that didn't advertise the right 8429 * attributes for the only driver that then supported 8430 * AP mode w/o monitor -- ath6kl. 8431 */ 8432 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support " 8433 "monitor interface type - try to run without it"); 8434 drv->device_ap_sme = 1; 8435 } 8436 8437 if (drv->monitor_ifidx < 0) 8438 return -1; 8439 8440 if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1)) 8441 goto error; 8442 8443 memset(&ll, 0, sizeof(ll)); 8444 ll.sll_family = AF_PACKET; 8445 ll.sll_ifindex = drv->monitor_ifidx; 8446 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)); 8447 if (drv->monitor_sock < 0) { 8448 wpa_printf(MSG_ERROR, "nl80211: socket[PF_PACKET,SOCK_RAW] failed: %s", 8449 strerror(errno)); 8450 goto error; 8451 } 8452 8453 if (add_monitor_filter(drv->monitor_sock)) { 8454 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor " 8455 "interface; do filtering in user space"); 8456 /* This works, but will cost in performance. */ 8457 } 8458 8459 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) { 8460 wpa_printf(MSG_ERROR, "nl80211: monitor socket bind failed: %s", 8461 strerror(errno)); 8462 goto error; 8463 } 8464 8465 optlen = sizeof(optval); 8466 optval = 20; 8467 if (setsockopt 8468 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) { 8469 wpa_printf(MSG_ERROR, "nl80211: Failed to set socket priority: %s", 8470 strerror(errno)); 8471 goto error; 8472 } 8473 8474 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read, 8475 drv, NULL)) { 8476 wpa_printf(MSG_INFO, "nl80211: Could not register monitor read socket"); 8477 goto error; 8478 } 8479 8480 drv->monitor_refcount++; 8481 return 0; 8482 error: 8483 nl80211_remove_monitor_interface(drv); 8484 return -1; 8485 } 8486 8487 8488 static int nl80211_setup_ap(struct i802_bss *bss) 8489 { 8490 struct wpa_driver_nl80211_data *drv = bss->drv; 8491 8492 wpa_printf(MSG_DEBUG, "nl80211: Setup AP(%s) - device_ap_sme=%d use_monitor=%d", 8493 bss->ifname, drv->device_ap_sme, drv->use_monitor); 8494 8495 /* 8496 * Disable Probe Request reporting unless we need it in this way for 8497 * devices that include the AP SME, in the other case (unless using 8498 * monitor iface) we'll get it through the nl_mgmt socket instead. 8499 */ 8500 if (!drv->device_ap_sme) 8501 wpa_driver_nl80211_probe_req_report(bss, 0); 8502 8503 if (!drv->device_ap_sme && !drv->use_monitor) 8504 if (nl80211_mgmt_subscribe_ap(bss)) 8505 return -1; 8506 8507 if (drv->device_ap_sme && !drv->use_monitor) 8508 if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) 8509 return -1; 8510 8511 if (!drv->device_ap_sme && drv->use_monitor && 8512 nl80211_create_monitor_interface(drv) && 8513 !drv->device_ap_sme) 8514 return -1; 8515 8516 if (drv->device_ap_sme && 8517 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) { 8518 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable " 8519 "Probe Request frame reporting in AP mode"); 8520 /* Try to survive without this */ 8521 } 8522 8523 return 0; 8524 } 8525 8526 8527 static void nl80211_teardown_ap(struct i802_bss *bss) 8528 { 8529 struct wpa_driver_nl80211_data *drv = bss->drv; 8530 8531 wpa_printf(MSG_DEBUG, "nl80211: Teardown AP(%s) - device_ap_sme=%d use_monitor=%d", 8532 bss->ifname, drv->device_ap_sme, drv->use_monitor); 8533 if (drv->device_ap_sme) { 8534 wpa_driver_nl80211_probe_req_report(bss, 0); 8535 if (!drv->use_monitor) 8536 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)"); 8537 } else if (drv->use_monitor) 8538 nl80211_remove_monitor_interface(drv); 8539 else 8540 nl80211_mgmt_unsubscribe(bss, "AP teardown"); 8541 8542 bss->beacon_set = 0; 8543 } 8544 8545 8546 static int nl80211_send_eapol_data(struct i802_bss *bss, 8547 const u8 *addr, const u8 *data, 8548 size_t data_len) 8549 { 8550 struct sockaddr_ll ll; 8551 int ret; 8552 8553 if (bss->drv->eapol_tx_sock < 0) { 8554 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL"); 8555 return -1; 8556 } 8557 8558 os_memset(&ll, 0, sizeof(ll)); 8559 ll.sll_family = AF_PACKET; 8560 ll.sll_ifindex = bss->ifindex; 8561 ll.sll_protocol = htons(ETH_P_PAE); 8562 ll.sll_halen = ETH_ALEN; 8563 os_memcpy(ll.sll_addr, addr, ETH_ALEN); 8564 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0, 8565 (struct sockaddr *) &ll, sizeof(ll)); 8566 if (ret < 0) 8567 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s", 8568 strerror(errno)); 8569 8570 return ret; 8571 } 8572 8573 8574 static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 8575 8576 static int wpa_driver_nl80211_hapd_send_eapol( 8577 void *priv, const u8 *addr, const u8 *data, 8578 size_t data_len, int encrypt, const u8 *own_addr, u32 flags) 8579 { 8580 struct i802_bss *bss = priv; 8581 struct wpa_driver_nl80211_data *drv = bss->drv; 8582 struct ieee80211_hdr *hdr; 8583 size_t len; 8584 u8 *pos; 8585 int res; 8586 int qos = flags & WPA_STA_WMM; 8587 8588 if (drv->device_ap_sme || !drv->use_monitor) 8589 return nl80211_send_eapol_data(bss, addr, data, data_len); 8590 8591 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 + 8592 data_len; 8593 hdr = os_zalloc(len); 8594 if (hdr == NULL) { 8595 wpa_printf(MSG_INFO, "nl80211: Failed to allocate EAPOL buffer(len=%lu)", 8596 (unsigned long) len); 8597 return -1; 8598 } 8599 8600 hdr->frame_control = 8601 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA); 8602 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS); 8603 if (encrypt) 8604 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP); 8605 if (qos) { 8606 hdr->frame_control |= 8607 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4); 8608 } 8609 8610 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN); 8611 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 8612 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 8613 pos = (u8 *) (hdr + 1); 8614 8615 if (qos) { 8616 /* Set highest priority in QoS header */ 8617 pos[0] = 7; 8618 pos[1] = 0; 8619 pos += 2; 8620 } 8621 8622 memcpy(pos, rfc1042_header, sizeof(rfc1042_header)); 8623 pos += sizeof(rfc1042_header); 8624 WPA_PUT_BE16(pos, ETH_P_PAE); 8625 pos += 2; 8626 memcpy(pos, data, data_len); 8627 8628 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0, 8629 0, 0, 0, 0); 8630 if (res < 0) { 8631 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - " 8632 "failed: %d (%s)", 8633 (unsigned long) len, errno, strerror(errno)); 8634 } 8635 os_free(hdr); 8636 8637 return res; 8638 } 8639 8640 8641 static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr, 8642 int total_flags, 8643 int flags_or, int flags_and) 8644 { 8645 struct i802_bss *bss = priv; 8646 struct wpa_driver_nl80211_data *drv = bss->drv; 8647 struct nl_msg *msg; 8648 struct nlattr *flags; 8649 struct nl80211_sta_flag_update upd; 8650 8651 wpa_printf(MSG_DEBUG, "nl80211: Set STA flags - ifname=%s addr=" MACSTR 8652 " total_flags=0x%x flags_or=0x%x flags_and=0x%x authorized=%d", 8653 bss->ifname, MAC2STR(addr), total_flags, flags_or, flags_and, 8654 !!(total_flags & WPA_STA_AUTHORIZED)); 8655 8656 msg = nlmsg_alloc(); 8657 if (!msg) 8658 return -ENOMEM; 8659 8660 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8661 8662 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8663 if_nametoindex(bss->ifname)); 8664 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8665 8666 /* 8667 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This 8668 * can be removed eventually. 8669 */ 8670 flags = nla_nest_start(msg, NL80211_ATTR_STA_FLAGS); 8671 if (!flags) 8672 goto nla_put_failure; 8673 if (total_flags & WPA_STA_AUTHORIZED) 8674 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_AUTHORIZED); 8675 8676 if (total_flags & WPA_STA_WMM) 8677 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_WME); 8678 8679 if (total_flags & WPA_STA_SHORT_PREAMBLE) 8680 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_SHORT_PREAMBLE); 8681 8682 if (total_flags & WPA_STA_MFP) 8683 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_MFP); 8684 8685 if (total_flags & WPA_STA_TDLS_PEER) 8686 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_TDLS_PEER); 8687 8688 nla_nest_end(msg, flags); 8689 8690 os_memset(&upd, 0, sizeof(upd)); 8691 upd.mask = sta_flags_nl80211(flags_or | ~flags_and); 8692 upd.set = sta_flags_nl80211(flags_or); 8693 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 8694 8695 return send_and_recv_msgs(drv, msg, NULL, NULL); 8696 nla_put_failure: 8697 nlmsg_free(msg); 8698 return -ENOBUFS; 8699 } 8700 8701 8702 static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv, 8703 struct wpa_driver_associate_params *params) 8704 { 8705 enum nl80211_iftype nlmode, old_mode; 8706 8707 if (params->p2p) { 8708 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P " 8709 "group (GO)"); 8710 nlmode = NL80211_IFTYPE_P2P_GO; 8711 } else 8712 nlmode = NL80211_IFTYPE_AP; 8713 8714 old_mode = drv->nlmode; 8715 if (wpa_driver_nl80211_set_mode(drv->first_bss, nlmode)) { 8716 nl80211_remove_monitor_interface(drv); 8717 return -1; 8718 } 8719 8720 if (nl80211_set_channel(drv->first_bss, ¶ms->freq, 0)) { 8721 if (old_mode != nlmode) 8722 wpa_driver_nl80211_set_mode(drv->first_bss, old_mode); 8723 nl80211_remove_monitor_interface(drv); 8724 return -1; 8725 } 8726 8727 return 0; 8728 } 8729 8730 8731 static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv) 8732 { 8733 struct nl_msg *msg; 8734 int ret = -1; 8735 8736 msg = nlmsg_alloc(); 8737 if (!msg) 8738 return -1; 8739 8740 nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS); 8741 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8742 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8743 msg = NULL; 8744 if (ret) { 8745 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d " 8746 "(%s)", ret, strerror(-ret)); 8747 goto nla_put_failure; 8748 } 8749 8750 ret = 0; 8751 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully"); 8752 8753 nla_put_failure: 8754 if (wpa_driver_nl80211_set_mode(drv->first_bss, 8755 NL80211_IFTYPE_STATION)) { 8756 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 8757 "station mode"); 8758 } 8759 8760 nlmsg_free(msg); 8761 return ret; 8762 } 8763 8764 8765 static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv, 8766 struct wpa_driver_associate_params *params) 8767 { 8768 struct nl_msg *msg; 8769 int ret = -1; 8770 int count = 0; 8771 8772 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex); 8773 8774 if (wpa_driver_nl80211_set_mode_ibss(drv->first_bss, ¶ms->freq)) { 8775 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 8776 "IBSS mode"); 8777 return -1; 8778 } 8779 8780 retry: 8781 msg = nlmsg_alloc(); 8782 if (!msg) 8783 return -1; 8784 8785 nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS); 8786 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8787 8788 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid)) 8789 goto nla_put_failure; 8790 8791 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 8792 params->ssid, params->ssid_len); 8793 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 8794 params->ssid); 8795 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 8796 drv->ssid_len = params->ssid_len; 8797 8798 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq.freq); 8799 wpa_printf(MSG_DEBUG, " * ht_enabled=%d", params->freq.ht_enabled); 8800 wpa_printf(MSG_DEBUG, " * sec_channel_offset=%d", 8801 params->freq.sec_channel_offset); 8802 wpa_printf(MSG_DEBUG, " * vht_enabled=%d", params->freq.vht_enabled); 8803 wpa_printf(MSG_DEBUG, " * center_freq1=%d", params->freq.center_freq1); 8804 wpa_printf(MSG_DEBUG, " * center_freq2=%d", params->freq.center_freq2); 8805 wpa_printf(MSG_DEBUG, " * bandwidth=%d", params->freq.bandwidth); 8806 if (nl80211_put_freq_params(msg, ¶ms->freq) < 0) 8807 goto nla_put_failure; 8808 8809 if (params->beacon_int > 0) { 8810 wpa_printf(MSG_DEBUG, " * beacon_int=%d", params->beacon_int); 8811 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, 8812 params->beacon_int); 8813 } 8814 8815 ret = nl80211_set_conn_keys(params, msg); 8816 if (ret) 8817 goto nla_put_failure; 8818 8819 if (params->bssid && params->fixed_bssid) { 8820 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR, 8821 MAC2STR(params->bssid)); 8822 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 8823 } 8824 8825 if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X || 8826 params->key_mgmt_suite == WPA_KEY_MGMT_PSK || 8827 params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 || 8828 params->key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256) { 8829 wpa_printf(MSG_DEBUG, " * control port"); 8830 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 8831 } 8832 8833 if (params->wpa_ie) { 8834 wpa_hexdump(MSG_DEBUG, 8835 " * Extra IEs for Beacon/Probe Response frames", 8836 params->wpa_ie, params->wpa_ie_len); 8837 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 8838 params->wpa_ie); 8839 } 8840 8841 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8842 msg = NULL; 8843 if (ret) { 8844 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)", 8845 ret, strerror(-ret)); 8846 count++; 8847 if (ret == -EALREADY && count == 1) { 8848 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after " 8849 "forced leave"); 8850 nl80211_leave_ibss(drv); 8851 nlmsg_free(msg); 8852 goto retry; 8853 } 8854 8855 goto nla_put_failure; 8856 } 8857 ret = 0; 8858 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully"); 8859 8860 nla_put_failure: 8861 nlmsg_free(msg); 8862 return ret; 8863 } 8864 8865 8866 static int nl80211_connect_common(struct wpa_driver_nl80211_data *drv, 8867 struct wpa_driver_associate_params *params, 8868 struct nl_msg *msg) 8869 { 8870 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8871 8872 if (params->bssid) { 8873 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 8874 MAC2STR(params->bssid)); 8875 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 8876 } 8877 8878 if (params->bssid_hint) { 8879 wpa_printf(MSG_DEBUG, " * bssid_hint=" MACSTR, 8880 MAC2STR(params->bssid_hint)); 8881 NLA_PUT(msg, NL80211_ATTR_MAC_HINT, ETH_ALEN, 8882 params->bssid_hint); 8883 } 8884 8885 if (params->freq.freq) { 8886 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq.freq); 8887 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq.freq); 8888 drv->assoc_freq = params->freq.freq; 8889 } else 8890 drv->assoc_freq = 0; 8891 8892 if (params->freq_hint) { 8893 wpa_printf(MSG_DEBUG, " * freq_hint=%d", params->freq_hint); 8894 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ_HINT, 8895 params->freq_hint); 8896 } 8897 8898 if (params->bg_scan_period >= 0) { 8899 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 8900 params->bg_scan_period); 8901 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 8902 params->bg_scan_period); 8903 } 8904 8905 if (params->ssid) { 8906 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 8907 params->ssid, params->ssid_len); 8908 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 8909 params->ssid); 8910 if (params->ssid_len > sizeof(drv->ssid)) 8911 goto nla_put_failure; 8912 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 8913 drv->ssid_len = params->ssid_len; 8914 } 8915 8916 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 8917 if (params->wpa_ie) 8918 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 8919 params->wpa_ie); 8920 8921 if (params->wpa_proto) { 8922 enum nl80211_wpa_versions ver = 0; 8923 8924 if (params->wpa_proto & WPA_PROTO_WPA) 8925 ver |= NL80211_WPA_VERSION_1; 8926 if (params->wpa_proto & WPA_PROTO_RSN) 8927 ver |= NL80211_WPA_VERSION_2; 8928 8929 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver); 8930 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 8931 } 8932 8933 if (params->pairwise_suite != WPA_CIPHER_NONE) { 8934 u32 cipher = wpa_cipher_to_cipher_suite(params->pairwise_suite); 8935 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher); 8936 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); 8937 } 8938 8939 if (params->group_suite == WPA_CIPHER_GTK_NOT_USED && 8940 !(drv->capa.enc & WPA_DRIVER_CAPA_ENC_GTK_NOT_USED)) { 8941 /* 8942 * This is likely to work even though many drivers do not 8943 * advertise support for operations without GTK. 8944 */ 8945 wpa_printf(MSG_DEBUG, " * skip group cipher configuration for GTK_NOT_USED due to missing driver support advertisement"); 8946 } else if (params->group_suite != WPA_CIPHER_NONE) { 8947 u32 cipher = wpa_cipher_to_cipher_suite(params->group_suite); 8948 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher); 8949 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); 8950 } 8951 8952 if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X || 8953 params->key_mgmt_suite == WPA_KEY_MGMT_PSK || 8954 params->key_mgmt_suite == WPA_KEY_MGMT_FT_IEEE8021X || 8955 params->key_mgmt_suite == WPA_KEY_MGMT_FT_PSK || 8956 params->key_mgmt_suite == WPA_KEY_MGMT_CCKM || 8957 params->key_mgmt_suite == WPA_KEY_MGMT_OSEN || 8958 params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 || 8959 params->key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256) { 8960 int mgmt = WLAN_AKM_SUITE_PSK; 8961 8962 switch (params->key_mgmt_suite) { 8963 case WPA_KEY_MGMT_CCKM: 8964 mgmt = WLAN_AKM_SUITE_CCKM; 8965 break; 8966 case WPA_KEY_MGMT_IEEE8021X: 8967 mgmt = WLAN_AKM_SUITE_8021X; 8968 break; 8969 case WPA_KEY_MGMT_FT_IEEE8021X: 8970 mgmt = WLAN_AKM_SUITE_FT_8021X; 8971 break; 8972 case WPA_KEY_MGMT_FT_PSK: 8973 mgmt = WLAN_AKM_SUITE_FT_PSK; 8974 break; 8975 case WPA_KEY_MGMT_IEEE8021X_SHA256: 8976 mgmt = WLAN_AKM_SUITE_8021X_SHA256; 8977 break; 8978 case WPA_KEY_MGMT_PSK_SHA256: 8979 mgmt = WLAN_AKM_SUITE_PSK_SHA256; 8980 break; 8981 case WPA_KEY_MGMT_OSEN: 8982 mgmt = WLAN_AKM_SUITE_OSEN; 8983 break; 8984 case WPA_KEY_MGMT_PSK: 8985 default: 8986 mgmt = WLAN_AKM_SUITE_PSK; 8987 break; 8988 } 8989 wpa_printf(MSG_DEBUG, " * akm=0x%x", mgmt); 8990 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt); 8991 } 8992 8993 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 8994 8995 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) 8996 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); 8997 8998 if (params->disable_ht) 8999 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); 9000 9001 if (params->htcaps && params->htcaps_mask) { 9002 int sz = sizeof(struct ieee80211_ht_capabilities); 9003 wpa_hexdump(MSG_DEBUG, " * htcaps", params->htcaps, sz); 9004 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); 9005 wpa_hexdump(MSG_DEBUG, " * htcaps_mask", 9006 params->htcaps_mask, sz); 9007 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 9008 params->htcaps_mask); 9009 } 9010 9011 #ifdef CONFIG_VHT_OVERRIDES 9012 if (params->disable_vht) { 9013 wpa_printf(MSG_DEBUG, " * VHT disabled"); 9014 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT); 9015 } 9016 9017 if (params->vhtcaps && params->vhtcaps_mask) { 9018 int sz = sizeof(struct ieee80211_vht_capabilities); 9019 wpa_hexdump(MSG_DEBUG, " * vhtcaps", params->vhtcaps, sz); 9020 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps); 9021 wpa_hexdump(MSG_DEBUG, " * vhtcaps_mask", 9022 params->vhtcaps_mask, sz); 9023 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 9024 params->vhtcaps_mask); 9025 } 9026 #endif /* CONFIG_VHT_OVERRIDES */ 9027 9028 if (params->p2p) 9029 wpa_printf(MSG_DEBUG, " * P2P group"); 9030 9031 return 0; 9032 nla_put_failure: 9033 return -1; 9034 } 9035 9036 9037 static int wpa_driver_nl80211_try_connect( 9038 struct wpa_driver_nl80211_data *drv, 9039 struct wpa_driver_associate_params *params) 9040 { 9041 struct nl_msg *msg; 9042 enum nl80211_auth_type type; 9043 int ret; 9044 int algs; 9045 9046 msg = nlmsg_alloc(); 9047 if (!msg) 9048 return -1; 9049 9050 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex); 9051 nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT); 9052 9053 ret = nl80211_connect_common(drv, params, msg); 9054 if (ret) 9055 goto nla_put_failure; 9056 9057 algs = 0; 9058 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 9059 algs++; 9060 if (params->auth_alg & WPA_AUTH_ALG_SHARED) 9061 algs++; 9062 if (params->auth_alg & WPA_AUTH_ALG_LEAP) 9063 algs++; 9064 if (algs > 1) { 9065 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic " 9066 "selection"); 9067 goto skip_auth_type; 9068 } 9069 9070 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 9071 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 9072 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 9073 type = NL80211_AUTHTYPE_SHARED_KEY; 9074 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 9075 type = NL80211_AUTHTYPE_NETWORK_EAP; 9076 else if (params->auth_alg & WPA_AUTH_ALG_FT) 9077 type = NL80211_AUTHTYPE_FT; 9078 else 9079 goto nla_put_failure; 9080 9081 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 9082 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 9083 9084 skip_auth_type: 9085 ret = nl80211_set_conn_keys(params, msg); 9086 if (ret) 9087 goto nla_put_failure; 9088 9089 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9090 msg = NULL; 9091 if (ret) { 9092 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d " 9093 "(%s)", ret, strerror(-ret)); 9094 goto nla_put_failure; 9095 } 9096 ret = 0; 9097 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully"); 9098 9099 nla_put_failure: 9100 nlmsg_free(msg); 9101 return ret; 9102 9103 } 9104 9105 9106 static int wpa_driver_nl80211_connect( 9107 struct wpa_driver_nl80211_data *drv, 9108 struct wpa_driver_associate_params *params) 9109 { 9110 int ret; 9111 9112 /* Store the connection attempted bssid for future use */ 9113 if (params->bssid) 9114 os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN); 9115 else 9116 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 9117 9118 ret = wpa_driver_nl80211_try_connect(drv, params); 9119 if (ret == -EALREADY) { 9120 /* 9121 * cfg80211 does not currently accept new connections if 9122 * we are already connected. As a workaround, force 9123 * disconnection and try again. 9124 */ 9125 wpa_printf(MSG_DEBUG, "nl80211: Explicitly " 9126 "disconnecting before reassociation " 9127 "attempt"); 9128 if (wpa_driver_nl80211_disconnect( 9129 drv, WLAN_REASON_PREV_AUTH_NOT_VALID)) 9130 return -1; 9131 ret = wpa_driver_nl80211_try_connect(drv, params); 9132 } 9133 return ret; 9134 } 9135 9136 9137 static int wpa_driver_nl80211_associate( 9138 void *priv, struct wpa_driver_associate_params *params) 9139 { 9140 struct i802_bss *bss = priv; 9141 struct wpa_driver_nl80211_data *drv = bss->drv; 9142 int ret; 9143 struct nl_msg *msg; 9144 9145 if (params->mode == IEEE80211_MODE_AP) 9146 return wpa_driver_nl80211_ap(drv, params); 9147 9148 if (params->mode == IEEE80211_MODE_IBSS) 9149 return wpa_driver_nl80211_ibss(drv, params); 9150 9151 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) { 9152 enum nl80211_iftype nlmode = params->p2p ? 9153 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 9154 9155 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0) 9156 return -1; 9157 return wpa_driver_nl80211_connect(drv, params); 9158 } 9159 9160 nl80211_mark_disconnected(drv); 9161 9162 msg = nlmsg_alloc(); 9163 if (!msg) 9164 return -1; 9165 9166 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)", 9167 drv->ifindex); 9168 nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE); 9169 9170 ret = nl80211_connect_common(drv, params, msg); 9171 if (ret) 9172 goto nla_put_failure; 9173 9174 if (params->prev_bssid) { 9175 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR, 9176 MAC2STR(params->prev_bssid)); 9177 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN, 9178 params->prev_bssid); 9179 } 9180 9181 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9182 msg = NULL; 9183 if (ret) { 9184 wpa_dbg(drv->ctx, MSG_DEBUG, 9185 "nl80211: MLME command failed (assoc): ret=%d (%s)", 9186 ret, strerror(-ret)); 9187 nl80211_dump_scan(drv); 9188 goto nla_put_failure; 9189 } 9190 ret = 0; 9191 wpa_printf(MSG_DEBUG, "nl80211: Association request send " 9192 "successfully"); 9193 9194 nla_put_failure: 9195 nlmsg_free(msg); 9196 return ret; 9197 } 9198 9199 9200 static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv, 9201 int ifindex, enum nl80211_iftype mode) 9202 { 9203 struct nl_msg *msg; 9204 int ret = -ENOBUFS; 9205 9206 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)", 9207 ifindex, mode, nl80211_iftype_str(mode)); 9208 9209 msg = nlmsg_alloc(); 9210 if (!msg) 9211 return -ENOMEM; 9212 9213 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE); 9214 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 9215 goto nla_put_failure; 9216 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode); 9217 9218 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9219 msg = NULL; 9220 if (!ret) 9221 return 0; 9222 nla_put_failure: 9223 nlmsg_free(msg); 9224 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:" 9225 " %d (%s)", ifindex, mode, ret, strerror(-ret)); 9226 return ret; 9227 } 9228 9229 9230 static int wpa_driver_nl80211_set_mode_impl( 9231 struct i802_bss *bss, 9232 enum nl80211_iftype nlmode, 9233 struct hostapd_freq_params *desired_freq_params) 9234 { 9235 struct wpa_driver_nl80211_data *drv = bss->drv; 9236 int ret = -1; 9237 int i; 9238 int was_ap = is_ap_interface(drv->nlmode); 9239 int res; 9240 int mode_switch_res; 9241 9242 mode_switch_res = nl80211_set_mode(drv, drv->ifindex, nlmode); 9243 if (mode_switch_res && nlmode == nl80211_get_ifmode(bss)) 9244 mode_switch_res = 0; 9245 9246 if (mode_switch_res == 0) { 9247 drv->nlmode = nlmode; 9248 ret = 0; 9249 goto done; 9250 } 9251 9252 if (mode_switch_res == -ENODEV) 9253 return -1; 9254 9255 if (nlmode == drv->nlmode) { 9256 wpa_printf(MSG_DEBUG, "nl80211: Interface already in " 9257 "requested mode - ignore error"); 9258 ret = 0; 9259 goto done; /* Already in the requested mode */ 9260 } 9261 9262 /* mac80211 doesn't allow mode changes while the device is up, so 9263 * take the device down, try to set the mode again, and bring the 9264 * device back up. 9265 */ 9266 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting " 9267 "interface down"); 9268 for (i = 0; i < 10; i++) { 9269 res = i802_set_iface_flags(bss, 0); 9270 if (res == -EACCES || res == -ENODEV) 9271 break; 9272 if (res != 0) { 9273 wpa_printf(MSG_DEBUG, "nl80211: Failed to set " 9274 "interface down"); 9275 os_sleep(0, 100000); 9276 continue; 9277 } 9278 9279 /* 9280 * Setting the mode will fail for some drivers if the phy is 9281 * on a frequency that the mode is disallowed in. 9282 */ 9283 if (desired_freq_params) { 9284 res = i802_set_freq(bss, desired_freq_params); 9285 if (res) { 9286 wpa_printf(MSG_DEBUG, 9287 "nl80211: Failed to set frequency on interface"); 9288 } 9289 } 9290 9291 /* Try to set the mode again while the interface is down */ 9292 mode_switch_res = nl80211_set_mode(drv, drv->ifindex, nlmode); 9293 if (mode_switch_res == -EBUSY) { 9294 wpa_printf(MSG_DEBUG, 9295 "nl80211: Delaying mode set while interface going down"); 9296 os_sleep(0, 100000); 9297 continue; 9298 } 9299 ret = mode_switch_res; 9300 break; 9301 } 9302 9303 if (!ret) { 9304 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while " 9305 "interface is down"); 9306 drv->nlmode = nlmode; 9307 drv->ignore_if_down_event = 1; 9308 } 9309 9310 /* Bring the interface back up */ 9311 res = linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1); 9312 if (res != 0) { 9313 wpa_printf(MSG_DEBUG, 9314 "nl80211: Failed to set interface up after switching mode"); 9315 ret = -1; 9316 } 9317 9318 done: 9319 if (ret) { 9320 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d " 9321 "from %d failed", nlmode, drv->nlmode); 9322 return ret; 9323 } 9324 9325 if (is_p2p_net_interface(nlmode)) 9326 nl80211_disable_11b_rates(drv, drv->ifindex, 1); 9327 else if (drv->disabled_11b_rates) 9328 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 9329 9330 if (is_ap_interface(nlmode)) { 9331 nl80211_mgmt_unsubscribe(bss, "start AP"); 9332 /* Setup additional AP mode functionality if needed */ 9333 if (nl80211_setup_ap(bss)) 9334 return -1; 9335 } else if (was_ap) { 9336 /* Remove additional AP mode functionality */ 9337 nl80211_teardown_ap(bss); 9338 } else { 9339 nl80211_mgmt_unsubscribe(bss, "mode change"); 9340 } 9341 9342 if (!bss->in_deinit && !is_ap_interface(nlmode) && 9343 nl80211_mgmt_subscribe_non_ap(bss) < 0) 9344 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action " 9345 "frame processing - ignore for now"); 9346 9347 return 0; 9348 } 9349 9350 9351 static int dfs_info_handler(struct nl_msg *msg, void *arg) 9352 { 9353 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9354 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9355 int *dfs_capability_ptr = arg; 9356 9357 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9358 genlmsg_attrlen(gnlh, 0), NULL); 9359 9360 if (tb[NL80211_ATTR_VENDOR_DATA]) { 9361 struct nlattr *nl_vend = tb[NL80211_ATTR_VENDOR_DATA]; 9362 struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_MAX + 1]; 9363 9364 nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_MAX, 9365 nla_data(nl_vend), nla_len(nl_vend), NULL); 9366 9367 if (tb_vendor[QCA_WLAN_VENDOR_ATTR_DFS]) { 9368 u32 val; 9369 val = nla_get_u32(tb_vendor[QCA_WLAN_VENDOR_ATTR_DFS]); 9370 wpa_printf(MSG_DEBUG, "nl80211: DFS offload capability: %u", 9371 val); 9372 *dfs_capability_ptr = val; 9373 } 9374 } 9375 9376 return NL_SKIP; 9377 } 9378 9379 9380 static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 9381 enum nl80211_iftype nlmode) 9382 { 9383 return wpa_driver_nl80211_set_mode_impl(bss, nlmode, NULL); 9384 } 9385 9386 9387 static int wpa_driver_nl80211_set_mode_ibss(struct i802_bss *bss, 9388 struct hostapd_freq_params *freq) 9389 { 9390 return wpa_driver_nl80211_set_mode_impl(bss, NL80211_IFTYPE_ADHOC, 9391 freq); 9392 } 9393 9394 9395 static int wpa_driver_nl80211_get_capa(void *priv, 9396 struct wpa_driver_capa *capa) 9397 { 9398 struct i802_bss *bss = priv; 9399 struct wpa_driver_nl80211_data *drv = bss->drv; 9400 struct nl_msg *msg; 9401 int dfs_capability = 0; 9402 int ret = 0; 9403 9404 if (!drv->has_capability) 9405 return -1; 9406 os_memcpy(capa, &drv->capa, sizeof(*capa)); 9407 if (drv->extended_capa && drv->extended_capa_mask) { 9408 capa->extended_capa = drv->extended_capa; 9409 capa->extended_capa_mask = drv->extended_capa_mask; 9410 capa->extended_capa_len = drv->extended_capa_len; 9411 } 9412 9413 if ((capa->flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) && 9414 !drv->allow_p2p_device) { 9415 wpa_printf(MSG_DEBUG, "nl80211: Do not indicate P2P_DEVICE support (p2p_device=1 driver param not specified)"); 9416 capa->flags &= ~WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 9417 } 9418 9419 if (drv->dfs_vendor_cmd_avail == 1) { 9420 msg = nlmsg_alloc(); 9421 if (!msg) 9422 return -ENOMEM; 9423 9424 nl80211_cmd(drv, msg, 0, NL80211_CMD_VENDOR); 9425 9426 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9427 NLA_PUT_U32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA); 9428 NLA_PUT_U32(msg, NL80211_ATTR_VENDOR_SUBCMD, 9429 QCA_NL80211_VENDOR_SUBCMD_DFS_CAPABILITY); 9430 9431 ret = send_and_recv_msgs(drv, msg, dfs_info_handler, 9432 &dfs_capability); 9433 if (!ret) { 9434 if (dfs_capability) 9435 capa->flags |= WPA_DRIVER_FLAGS_DFS_OFFLOAD; 9436 } 9437 } 9438 9439 return ret; 9440 9441 nla_put_failure: 9442 nlmsg_free(msg); 9443 return -ENOBUFS; 9444 } 9445 9446 9447 static int wpa_driver_nl80211_set_operstate(void *priv, int state) 9448 { 9449 struct i802_bss *bss = priv; 9450 struct wpa_driver_nl80211_data *drv = bss->drv; 9451 9452 wpa_printf(MSG_DEBUG, "nl80211: Set %s operstate %d->%d (%s)", 9453 bss->ifname, drv->operstate, state, 9454 state ? "UP" : "DORMANT"); 9455 drv->operstate = state; 9456 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1, 9457 state ? IF_OPER_UP : IF_OPER_DORMANT); 9458 } 9459 9460 9461 static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized) 9462 { 9463 struct i802_bss *bss = priv; 9464 struct wpa_driver_nl80211_data *drv = bss->drv; 9465 struct nl_msg *msg; 9466 struct nl80211_sta_flag_update upd; 9467 int ret = -ENOBUFS; 9468 9469 if (!drv->associated && is_zero_ether_addr(drv->bssid) && !authorized) { 9470 wpa_printf(MSG_DEBUG, "nl80211: Skip set_supp_port(unauthorized) while not associated"); 9471 return 0; 9472 } 9473 9474 wpa_printf(MSG_DEBUG, "nl80211: Set supplicant port %sauthorized for " 9475 MACSTR, authorized ? "" : "un", MAC2STR(drv->bssid)); 9476 9477 msg = nlmsg_alloc(); 9478 if (!msg) 9479 return -ENOMEM; 9480 9481 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 9482 9483 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 9484 if_nametoindex(bss->ifname)); 9485 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 9486 9487 os_memset(&upd, 0, sizeof(upd)); 9488 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED); 9489 if (authorized) 9490 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED); 9491 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 9492 9493 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9494 msg = NULL; 9495 if (!ret) 9496 return 0; 9497 nla_put_failure: 9498 nlmsg_free(msg); 9499 wpa_printf(MSG_DEBUG, "nl80211: Failed to set STA flag: %d (%s)", 9500 ret, strerror(-ret)); 9501 return ret; 9502 } 9503 9504 9505 /* Set kernel driver on given frequency (MHz) */ 9506 static int i802_set_freq(void *priv, struct hostapd_freq_params *freq) 9507 { 9508 struct i802_bss *bss = priv; 9509 return nl80211_set_channel(bss, freq, 0); 9510 } 9511 9512 9513 static inline int min_int(int a, int b) 9514 { 9515 if (a < b) 9516 return a; 9517 return b; 9518 } 9519 9520 9521 static int get_key_handler(struct nl_msg *msg, void *arg) 9522 { 9523 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9524 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9525 9526 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9527 genlmsg_attrlen(gnlh, 0), NULL); 9528 9529 /* 9530 * TODO: validate the key index and mac address! 9531 * Otherwise, there's a race condition as soon as 9532 * the kernel starts sending key notifications. 9533 */ 9534 9535 if (tb[NL80211_ATTR_KEY_SEQ]) 9536 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]), 9537 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6)); 9538 return NL_SKIP; 9539 } 9540 9541 9542 static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr, 9543 int idx, u8 *seq) 9544 { 9545 struct i802_bss *bss = priv; 9546 struct wpa_driver_nl80211_data *drv = bss->drv; 9547 struct nl_msg *msg; 9548 9549 msg = nlmsg_alloc(); 9550 if (!msg) 9551 return -ENOMEM; 9552 9553 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY); 9554 9555 if (addr) 9556 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 9557 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx); 9558 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface)); 9559 9560 memset(seq, 0, 6); 9561 9562 return send_and_recv_msgs(drv, msg, get_key_handler, seq); 9563 nla_put_failure: 9564 nlmsg_free(msg); 9565 return -ENOBUFS; 9566 } 9567 9568 9569 static int i802_set_rts(void *priv, int rts) 9570 { 9571 struct i802_bss *bss = priv; 9572 struct wpa_driver_nl80211_data *drv = bss->drv; 9573 struct nl_msg *msg; 9574 int ret = -ENOBUFS; 9575 u32 val; 9576 9577 msg = nlmsg_alloc(); 9578 if (!msg) 9579 return -ENOMEM; 9580 9581 if (rts >= 2347) 9582 val = (u32) -1; 9583 else 9584 val = rts; 9585 9586 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 9587 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9588 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val); 9589 9590 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9591 msg = NULL; 9592 if (!ret) 9593 return 0; 9594 nla_put_failure: 9595 nlmsg_free(msg); 9596 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: " 9597 "%d (%s)", rts, ret, strerror(-ret)); 9598 return ret; 9599 } 9600 9601 9602 static int i802_set_frag(void *priv, int frag) 9603 { 9604 struct i802_bss *bss = priv; 9605 struct wpa_driver_nl80211_data *drv = bss->drv; 9606 struct nl_msg *msg; 9607 int ret = -ENOBUFS; 9608 u32 val; 9609 9610 msg = nlmsg_alloc(); 9611 if (!msg) 9612 return -ENOMEM; 9613 9614 if (frag >= 2346) 9615 val = (u32) -1; 9616 else 9617 val = frag; 9618 9619 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 9620 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9621 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val); 9622 9623 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9624 msg = NULL; 9625 if (!ret) 9626 return 0; 9627 nla_put_failure: 9628 nlmsg_free(msg); 9629 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold " 9630 "%d: %d (%s)", frag, ret, strerror(-ret)); 9631 return ret; 9632 } 9633 9634 9635 static int i802_flush(void *priv) 9636 { 9637 struct i802_bss *bss = priv; 9638 struct wpa_driver_nl80211_data *drv = bss->drv; 9639 struct nl_msg *msg; 9640 int res; 9641 9642 msg = nlmsg_alloc(); 9643 if (!msg) 9644 return -1; 9645 9646 wpa_printf(MSG_DEBUG, "nl80211: flush -> DEL_STATION %s (all)", 9647 bss->ifname); 9648 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 9649 9650 /* 9651 * XXX: FIX! this needs to flush all VLANs too 9652 */ 9653 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 9654 if_nametoindex(bss->ifname)); 9655 9656 res = send_and_recv_msgs(drv, msg, NULL, NULL); 9657 if (res) { 9658 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d " 9659 "(%s)", res, strerror(-res)); 9660 } 9661 return res; 9662 nla_put_failure: 9663 nlmsg_free(msg); 9664 return -ENOBUFS; 9665 } 9666 9667 9668 static int get_sta_handler(struct nl_msg *msg, void *arg) 9669 { 9670 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9671 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9672 struct hostap_sta_driver_data *data = arg; 9673 struct nlattr *stats[NL80211_STA_INFO_MAX + 1]; 9674 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = { 9675 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 }, 9676 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 }, 9677 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 }, 9678 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 }, 9679 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 }, 9680 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 }, 9681 }; 9682 9683 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9684 genlmsg_attrlen(gnlh, 0), NULL); 9685 9686 /* 9687 * TODO: validate the interface and mac address! 9688 * Otherwise, there's a race condition as soon as 9689 * the kernel starts sending station notifications. 9690 */ 9691 9692 if (!tb[NL80211_ATTR_STA_INFO]) { 9693 wpa_printf(MSG_DEBUG, "sta stats missing!"); 9694 return NL_SKIP; 9695 } 9696 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX, 9697 tb[NL80211_ATTR_STA_INFO], 9698 stats_policy)) { 9699 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!"); 9700 return NL_SKIP; 9701 } 9702 9703 if (stats[NL80211_STA_INFO_INACTIVE_TIME]) 9704 data->inactive_msec = 9705 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]); 9706 if (stats[NL80211_STA_INFO_RX_BYTES]) 9707 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]); 9708 if (stats[NL80211_STA_INFO_TX_BYTES]) 9709 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]); 9710 if (stats[NL80211_STA_INFO_RX_PACKETS]) 9711 data->rx_packets = 9712 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]); 9713 if (stats[NL80211_STA_INFO_TX_PACKETS]) 9714 data->tx_packets = 9715 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]); 9716 if (stats[NL80211_STA_INFO_TX_FAILED]) 9717 data->tx_retry_failed = 9718 nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]); 9719 9720 return NL_SKIP; 9721 } 9722 9723 static int i802_read_sta_data(struct i802_bss *bss, 9724 struct hostap_sta_driver_data *data, 9725 const u8 *addr) 9726 { 9727 struct wpa_driver_nl80211_data *drv = bss->drv; 9728 struct nl_msg *msg; 9729 9730 os_memset(data, 0, sizeof(*data)); 9731 msg = nlmsg_alloc(); 9732 if (!msg) 9733 return -ENOMEM; 9734 9735 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 9736 9737 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 9738 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 9739 9740 return send_and_recv_msgs(drv, msg, get_sta_handler, data); 9741 nla_put_failure: 9742 nlmsg_free(msg); 9743 return -ENOBUFS; 9744 } 9745 9746 9747 static int i802_set_tx_queue_params(void *priv, int queue, int aifs, 9748 int cw_min, int cw_max, int burst_time) 9749 { 9750 struct i802_bss *bss = priv; 9751 struct wpa_driver_nl80211_data *drv = bss->drv; 9752 struct nl_msg *msg; 9753 struct nlattr *txq, *params; 9754 9755 msg = nlmsg_alloc(); 9756 if (!msg) 9757 return -1; 9758 9759 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 9760 9761 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 9762 9763 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS); 9764 if (!txq) 9765 goto nla_put_failure; 9766 9767 /* We are only sending parameters for a single TXQ at a time */ 9768 params = nla_nest_start(msg, 1); 9769 if (!params) 9770 goto nla_put_failure; 9771 9772 switch (queue) { 9773 case 0: 9774 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO); 9775 break; 9776 case 1: 9777 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI); 9778 break; 9779 case 2: 9780 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE); 9781 break; 9782 case 3: 9783 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK); 9784 break; 9785 } 9786 /* Burst time is configured in units of 0.1 msec and TXOP parameter in 9787 * 32 usec, so need to convert the value here. */ 9788 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32); 9789 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min); 9790 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max); 9791 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs); 9792 9793 nla_nest_end(msg, params); 9794 9795 nla_nest_end(msg, txq); 9796 9797 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 9798 return 0; 9799 msg = NULL; 9800 nla_put_failure: 9801 nlmsg_free(msg); 9802 return -1; 9803 } 9804 9805 9806 static int i802_set_sta_vlan(struct i802_bss *bss, const u8 *addr, 9807 const char *ifname, int vlan_id) 9808 { 9809 struct wpa_driver_nl80211_data *drv = bss->drv; 9810 struct nl_msg *msg; 9811 int ret = -ENOBUFS; 9812 9813 msg = nlmsg_alloc(); 9814 if (!msg) 9815 return -ENOMEM; 9816 9817 wpa_printf(MSG_DEBUG, "nl80211: %s[%d]: set_sta_vlan(" MACSTR 9818 ", ifname=%s[%d], vlan_id=%d)", 9819 bss->ifname, if_nametoindex(bss->ifname), 9820 MAC2STR(addr), ifname, if_nametoindex(ifname), vlan_id); 9821 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 9822 9823 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 9824 if_nametoindex(bss->ifname)); 9825 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 9826 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN, 9827 if_nametoindex(ifname)); 9828 9829 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9830 msg = NULL; 9831 if (ret < 0) { 9832 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr=" 9833 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)", 9834 MAC2STR(addr), ifname, vlan_id, ret, 9835 strerror(-ret)); 9836 } 9837 nla_put_failure: 9838 nlmsg_free(msg); 9839 return ret; 9840 } 9841 9842 9843 static int i802_get_inact_sec(void *priv, const u8 *addr) 9844 { 9845 struct hostap_sta_driver_data data; 9846 int ret; 9847 9848 data.inactive_msec = (unsigned long) -1; 9849 ret = i802_read_sta_data(priv, &data, addr); 9850 if (ret || data.inactive_msec == (unsigned long) -1) 9851 return -1; 9852 return data.inactive_msec / 1000; 9853 } 9854 9855 9856 static int i802_sta_clear_stats(void *priv, const u8 *addr) 9857 { 9858 #if 0 9859 /* TODO */ 9860 #endif 9861 return 0; 9862 } 9863 9864 9865 static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, 9866 int reason) 9867 { 9868 struct i802_bss *bss = priv; 9869 struct wpa_driver_nl80211_data *drv = bss->drv; 9870 struct ieee80211_mgmt mgmt; 9871 9872 if (drv->device_ap_sme) 9873 return wpa_driver_nl80211_sta_remove(bss, addr); 9874 9875 memset(&mgmt, 0, sizeof(mgmt)); 9876 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 9877 WLAN_FC_STYPE_DEAUTH); 9878 memcpy(mgmt.da, addr, ETH_ALEN); 9879 memcpy(mgmt.sa, own_addr, ETH_ALEN); 9880 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 9881 mgmt.u.deauth.reason_code = host_to_le16(reason); 9882 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 9883 IEEE80211_HDRLEN + 9884 sizeof(mgmt.u.deauth), 0, 0, 0, 0, 9885 0); 9886 } 9887 9888 9889 static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr, 9890 int reason) 9891 { 9892 struct i802_bss *bss = priv; 9893 struct wpa_driver_nl80211_data *drv = bss->drv; 9894 struct ieee80211_mgmt mgmt; 9895 9896 if (drv->device_ap_sme) 9897 return wpa_driver_nl80211_sta_remove(bss, addr); 9898 9899 memset(&mgmt, 0, sizeof(mgmt)); 9900 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 9901 WLAN_FC_STYPE_DISASSOC); 9902 memcpy(mgmt.da, addr, ETH_ALEN); 9903 memcpy(mgmt.sa, own_addr, ETH_ALEN); 9904 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 9905 mgmt.u.disassoc.reason_code = host_to_le16(reason); 9906 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 9907 IEEE80211_HDRLEN + 9908 sizeof(mgmt.u.disassoc), 0, 0, 0, 0, 9909 0); 9910 } 9911 9912 9913 static void dump_ifidx(struct wpa_driver_nl80211_data *drv) 9914 { 9915 char buf[200], *pos, *end; 9916 int i, res; 9917 9918 pos = buf; 9919 end = pos + sizeof(buf); 9920 9921 for (i = 0; i < drv->num_if_indices; i++) { 9922 if (!drv->if_indices[i]) 9923 continue; 9924 res = os_snprintf(pos, end - pos, " %d", drv->if_indices[i]); 9925 if (res < 0 || res >= end - pos) 9926 break; 9927 pos += res; 9928 } 9929 *pos = '\0'; 9930 9931 wpa_printf(MSG_DEBUG, "nl80211: if_indices[%d]:%s", 9932 drv->num_if_indices, buf); 9933 } 9934 9935 9936 static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 9937 { 9938 int i; 9939 int *old; 9940 9941 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d", 9942 ifidx); 9943 if (have_ifidx(drv, ifidx)) { 9944 wpa_printf(MSG_DEBUG, "nl80211: ifindex %d already in the list", 9945 ifidx); 9946 return; 9947 } 9948 for (i = 0; i < drv->num_if_indices; i++) { 9949 if (drv->if_indices[i] == 0) { 9950 drv->if_indices[i] = ifidx; 9951 dump_ifidx(drv); 9952 return; 9953 } 9954 } 9955 9956 if (drv->if_indices != drv->default_if_indices) 9957 old = drv->if_indices; 9958 else 9959 old = NULL; 9960 9961 drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1, 9962 sizeof(int)); 9963 if (!drv->if_indices) { 9964 if (!old) 9965 drv->if_indices = drv->default_if_indices; 9966 else 9967 drv->if_indices = old; 9968 wpa_printf(MSG_ERROR, "Failed to reallocate memory for " 9969 "interfaces"); 9970 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx); 9971 return; 9972 } else if (!old) 9973 os_memcpy(drv->if_indices, drv->default_if_indices, 9974 sizeof(drv->default_if_indices)); 9975 drv->if_indices[drv->num_if_indices] = ifidx; 9976 drv->num_if_indices++; 9977 dump_ifidx(drv); 9978 } 9979 9980 9981 static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 9982 { 9983 int i; 9984 9985 for (i = 0; i < drv->num_if_indices; i++) { 9986 if (drv->if_indices[i] == ifidx) { 9987 drv->if_indices[i] = 0; 9988 break; 9989 } 9990 } 9991 dump_ifidx(drv); 9992 } 9993 9994 9995 static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 9996 { 9997 int i; 9998 9999 for (i = 0; i < drv->num_if_indices; i++) 10000 if (drv->if_indices[i] == ifidx) 10001 return 1; 10002 10003 return 0; 10004 } 10005 10006 10007 static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val, 10008 const char *bridge_ifname, char *ifname_wds) 10009 { 10010 struct i802_bss *bss = priv; 10011 struct wpa_driver_nl80211_data *drv = bss->drv; 10012 char name[IFNAMSIZ + 1]; 10013 10014 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid); 10015 if (ifname_wds) 10016 os_strlcpy(ifname_wds, name, IFNAMSIZ + 1); 10017 10018 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR 10019 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name); 10020 if (val) { 10021 if (!if_nametoindex(name)) { 10022 if (nl80211_create_iface(drv, name, 10023 NL80211_IFTYPE_AP_VLAN, 10024 bss->addr, 1, NULL, NULL, 0) < 10025 0) 10026 return -1; 10027 if (bridge_ifname && 10028 linux_br_add_if(drv->global->ioctl_sock, 10029 bridge_ifname, name) < 0) 10030 return -1; 10031 } 10032 if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) { 10033 wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA " 10034 "interface %s up", name); 10035 } 10036 return i802_set_sta_vlan(priv, addr, name, 0); 10037 } else { 10038 if (bridge_ifname) 10039 linux_br_del_if(drv->global->ioctl_sock, bridge_ifname, 10040 name); 10041 10042 i802_set_sta_vlan(priv, addr, bss->ifname, 0); 10043 nl80211_remove_iface(drv, if_nametoindex(name)); 10044 return 0; 10045 } 10046 } 10047 10048 10049 static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx) 10050 { 10051 struct wpa_driver_nl80211_data *drv = eloop_ctx; 10052 struct sockaddr_ll lladdr; 10053 unsigned char buf[3000]; 10054 int len; 10055 socklen_t fromlen = sizeof(lladdr); 10056 10057 len = recvfrom(sock, buf, sizeof(buf), 0, 10058 (struct sockaddr *)&lladdr, &fromlen); 10059 if (len < 0) { 10060 wpa_printf(MSG_ERROR, "nl80211: EAPOL recv failed: %s", 10061 strerror(errno)); 10062 return; 10063 } 10064 10065 if (have_ifidx(drv, lladdr.sll_ifindex)) 10066 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len); 10067 } 10068 10069 10070 static int i802_check_bridge(struct wpa_driver_nl80211_data *drv, 10071 struct i802_bss *bss, 10072 const char *brname, const char *ifname) 10073 { 10074 int ifindex; 10075 char in_br[IFNAMSIZ]; 10076 10077 os_strlcpy(bss->brname, brname, IFNAMSIZ); 10078 ifindex = if_nametoindex(brname); 10079 if (ifindex == 0) { 10080 /* 10081 * Bridge was configured, but the bridge device does 10082 * not exist. Try to add it now. 10083 */ 10084 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) { 10085 wpa_printf(MSG_ERROR, "nl80211: Failed to add the " 10086 "bridge interface %s: %s", 10087 brname, strerror(errno)); 10088 return -1; 10089 } 10090 bss->added_bridge = 1; 10091 add_ifidx(drv, if_nametoindex(brname)); 10092 } 10093 10094 if (linux_br_get(in_br, ifname) == 0) { 10095 if (os_strcmp(in_br, brname) == 0) 10096 return 0; /* already in the bridge */ 10097 10098 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from " 10099 "bridge %s", ifname, in_br); 10100 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) < 10101 0) { 10102 wpa_printf(MSG_ERROR, "nl80211: Failed to " 10103 "remove interface %s from bridge " 10104 "%s: %s", 10105 ifname, brname, strerror(errno)); 10106 return -1; 10107 } 10108 } 10109 10110 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s", 10111 ifname, brname); 10112 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) { 10113 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s " 10114 "into bridge %s: %s", 10115 ifname, brname, strerror(errno)); 10116 return -1; 10117 } 10118 bss->added_if_into_bridge = 1; 10119 10120 return 0; 10121 } 10122 10123 10124 static void *i802_init(struct hostapd_data *hapd, 10125 struct wpa_init_params *params) 10126 { 10127 struct wpa_driver_nl80211_data *drv; 10128 struct i802_bss *bss; 10129 size_t i; 10130 char brname[IFNAMSIZ]; 10131 int ifindex, br_ifindex; 10132 int br_added = 0; 10133 10134 bss = wpa_driver_nl80211_drv_init(hapd, params->ifname, 10135 params->global_priv, 1, 10136 params->bssid); 10137 if (bss == NULL) 10138 return NULL; 10139 10140 drv = bss->drv; 10141 10142 if (linux_br_get(brname, params->ifname) == 0) { 10143 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s", 10144 params->ifname, brname); 10145 br_ifindex = if_nametoindex(brname); 10146 } else { 10147 brname[0] = '\0'; 10148 br_ifindex = 0; 10149 } 10150 10151 for (i = 0; i < params->num_bridge; i++) { 10152 if (params->bridge[i]) { 10153 ifindex = if_nametoindex(params->bridge[i]); 10154 if (ifindex) 10155 add_ifidx(drv, ifindex); 10156 if (ifindex == br_ifindex) 10157 br_added = 1; 10158 } 10159 } 10160 if (!br_added && br_ifindex && 10161 (params->num_bridge == 0 || !params->bridge[0])) 10162 add_ifidx(drv, br_ifindex); 10163 10164 /* start listening for EAPOL on the default AP interface */ 10165 add_ifidx(drv, drv->ifindex); 10166 10167 if (params->num_bridge && params->bridge[0] && 10168 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0) 10169 goto failed; 10170 10171 #ifdef CONFIG_LIBNL3_ROUTE 10172 if (bss->added_if_into_bridge) { 10173 drv->rtnl_sk = nl_socket_alloc(); 10174 if (drv->rtnl_sk == NULL) { 10175 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate nl_sock"); 10176 goto failed; 10177 } 10178 10179 if (nl_connect(drv->rtnl_sk, NETLINK_ROUTE)) { 10180 wpa_printf(MSG_ERROR, "nl80211: Failed to connect nl_sock to NETLINK_ROUTE: %s", 10181 strerror(errno)); 10182 goto failed; 10183 } 10184 } 10185 #endif /* CONFIG_LIBNL3_ROUTE */ 10186 10187 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE)); 10188 if (drv->eapol_sock < 0) { 10189 wpa_printf(MSG_ERROR, "nl80211: socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE) failed: %s", 10190 strerror(errno)); 10191 goto failed; 10192 } 10193 10194 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL)) 10195 { 10196 wpa_printf(MSG_INFO, "nl80211: Could not register read socket for eapol"); 10197 goto failed; 10198 } 10199 10200 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 10201 params->own_addr)) 10202 goto failed; 10203 os_memcpy(drv->perm_addr, params->own_addr, ETH_ALEN); 10204 10205 memcpy(bss->addr, params->own_addr, ETH_ALEN); 10206 10207 return bss; 10208 10209 failed: 10210 wpa_driver_nl80211_deinit(bss); 10211 return NULL; 10212 } 10213 10214 10215 static void i802_deinit(void *priv) 10216 { 10217 struct i802_bss *bss = priv; 10218 wpa_driver_nl80211_deinit(bss); 10219 } 10220 10221 10222 static enum nl80211_iftype wpa_driver_nl80211_if_type( 10223 enum wpa_driver_if_type type) 10224 { 10225 switch (type) { 10226 case WPA_IF_STATION: 10227 return NL80211_IFTYPE_STATION; 10228 case WPA_IF_P2P_CLIENT: 10229 case WPA_IF_P2P_GROUP: 10230 return NL80211_IFTYPE_P2P_CLIENT; 10231 case WPA_IF_AP_VLAN: 10232 return NL80211_IFTYPE_AP_VLAN; 10233 case WPA_IF_AP_BSS: 10234 return NL80211_IFTYPE_AP; 10235 case WPA_IF_P2P_GO: 10236 return NL80211_IFTYPE_P2P_GO; 10237 case WPA_IF_P2P_DEVICE: 10238 return NL80211_IFTYPE_P2P_DEVICE; 10239 } 10240 return -1; 10241 } 10242 10243 10244 #ifdef CONFIG_P2P 10245 10246 static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr) 10247 { 10248 struct wpa_driver_nl80211_data *drv; 10249 dl_list_for_each(drv, &global->interfaces, 10250 struct wpa_driver_nl80211_data, list) { 10251 if (os_memcmp(addr, drv->first_bss->addr, ETH_ALEN) == 0) 10252 return 1; 10253 } 10254 return 0; 10255 } 10256 10257 10258 static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv, 10259 u8 *new_addr) 10260 { 10261 unsigned int idx; 10262 10263 if (!drv->global) 10264 return -1; 10265 10266 os_memcpy(new_addr, drv->first_bss->addr, ETH_ALEN); 10267 for (idx = 0; idx < 64; idx++) { 10268 new_addr[0] = drv->first_bss->addr[0] | 0x02; 10269 new_addr[0] ^= idx << 2; 10270 if (!nl80211_addr_in_use(drv->global, new_addr)) 10271 break; 10272 } 10273 if (idx == 64) 10274 return -1; 10275 10276 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address " 10277 MACSTR, MAC2STR(new_addr)); 10278 10279 return 0; 10280 } 10281 10282 #endif /* CONFIG_P2P */ 10283 10284 10285 struct wdev_info { 10286 u64 wdev_id; 10287 int wdev_id_set; 10288 u8 macaddr[ETH_ALEN]; 10289 }; 10290 10291 static int nl80211_wdev_handler(struct nl_msg *msg, void *arg) 10292 { 10293 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 10294 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 10295 struct wdev_info *wi = arg; 10296 10297 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 10298 genlmsg_attrlen(gnlh, 0), NULL); 10299 if (tb[NL80211_ATTR_WDEV]) { 10300 wi->wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 10301 wi->wdev_id_set = 1; 10302 } 10303 10304 if (tb[NL80211_ATTR_MAC]) 10305 os_memcpy(wi->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 10306 ETH_ALEN); 10307 10308 return NL_SKIP; 10309 } 10310 10311 10312 static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type, 10313 const char *ifname, const u8 *addr, 10314 void *bss_ctx, void **drv_priv, 10315 char *force_ifname, u8 *if_addr, 10316 const char *bridge, int use_existing) 10317 { 10318 enum nl80211_iftype nlmode; 10319 struct i802_bss *bss = priv; 10320 struct wpa_driver_nl80211_data *drv = bss->drv; 10321 int ifidx; 10322 int added = 1; 10323 10324 if (addr) 10325 os_memcpy(if_addr, addr, ETH_ALEN); 10326 nlmode = wpa_driver_nl80211_if_type(type); 10327 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { 10328 struct wdev_info p2pdev_info; 10329 10330 os_memset(&p2pdev_info, 0, sizeof(p2pdev_info)); 10331 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 10332 0, nl80211_wdev_handler, 10333 &p2pdev_info, use_existing); 10334 if (!p2pdev_info.wdev_id_set || ifidx != 0) { 10335 wpa_printf(MSG_ERROR, "nl80211: Failed to create a P2P Device interface %s", 10336 ifname); 10337 return -1; 10338 } 10339 10340 drv->global->if_add_wdevid = p2pdev_info.wdev_id; 10341 drv->global->if_add_wdevid_set = p2pdev_info.wdev_id_set; 10342 if (!is_zero_ether_addr(p2pdev_info.macaddr)) 10343 os_memcpy(if_addr, p2pdev_info.macaddr, ETH_ALEN); 10344 wpa_printf(MSG_DEBUG, "nl80211: New P2P Device interface %s (0x%llx) created", 10345 ifname, 10346 (long long unsigned int) p2pdev_info.wdev_id); 10347 } else { 10348 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 10349 0, NULL, NULL, use_existing); 10350 if (use_existing && ifidx == -ENFILE) { 10351 added = 0; 10352 ifidx = if_nametoindex(ifname); 10353 } else if (ifidx < 0) { 10354 return -1; 10355 } 10356 } 10357 10358 if (!addr) { 10359 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 10360 os_memcpy(if_addr, bss->addr, ETH_ALEN); 10361 else if (linux_get_ifhwaddr(drv->global->ioctl_sock, 10362 bss->ifname, if_addr) < 0) { 10363 if (added) 10364 nl80211_remove_iface(drv, ifidx); 10365 return -1; 10366 } 10367 } 10368 10369 #ifdef CONFIG_P2P 10370 if (!addr && 10371 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP || 10372 type == WPA_IF_P2P_GO)) { 10373 /* Enforce unique P2P Interface Address */ 10374 u8 new_addr[ETH_ALEN]; 10375 10376 if (linux_get_ifhwaddr(drv->global->ioctl_sock, ifname, 10377 new_addr) < 0) { 10378 if (added) 10379 nl80211_remove_iface(drv, ifidx); 10380 return -1; 10381 } 10382 if (nl80211_addr_in_use(drv->global, new_addr)) { 10383 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address " 10384 "for P2P group interface"); 10385 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) { 10386 if (added) 10387 nl80211_remove_iface(drv, ifidx); 10388 return -1; 10389 } 10390 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 10391 new_addr) < 0) { 10392 if (added) 10393 nl80211_remove_iface(drv, ifidx); 10394 return -1; 10395 } 10396 } 10397 os_memcpy(if_addr, new_addr, ETH_ALEN); 10398 } 10399 #endif /* CONFIG_P2P */ 10400 10401 if (type == WPA_IF_AP_BSS) { 10402 struct i802_bss *new_bss = os_zalloc(sizeof(*new_bss)); 10403 if (new_bss == NULL) { 10404 if (added) 10405 nl80211_remove_iface(drv, ifidx); 10406 return -1; 10407 } 10408 10409 if (bridge && 10410 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) { 10411 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new " 10412 "interface %s to a bridge %s", 10413 ifname, bridge); 10414 if (added) 10415 nl80211_remove_iface(drv, ifidx); 10416 os_free(new_bss); 10417 return -1; 10418 } 10419 10420 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1)) 10421 { 10422 if (added) 10423 nl80211_remove_iface(drv, ifidx); 10424 os_free(new_bss); 10425 return -1; 10426 } 10427 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ); 10428 os_memcpy(new_bss->addr, if_addr, ETH_ALEN); 10429 new_bss->ifindex = ifidx; 10430 new_bss->drv = drv; 10431 new_bss->next = drv->first_bss->next; 10432 new_bss->freq = drv->first_bss->freq; 10433 new_bss->ctx = bss_ctx; 10434 new_bss->added_if = added; 10435 drv->first_bss->next = new_bss; 10436 if (drv_priv) 10437 *drv_priv = new_bss; 10438 nl80211_init_bss(new_bss); 10439 10440 /* Subscribe management frames for this WPA_IF_AP_BSS */ 10441 if (nl80211_setup_ap(new_bss)) 10442 return -1; 10443 } 10444 10445 if (drv->global) 10446 drv->global->if_add_ifindex = ifidx; 10447 10448 /* 10449 * Some virtual interfaces need to process EAPOL packets and events on 10450 * the parent interface. This is used mainly with hostapd. 10451 */ 10452 if (ifidx > 0 && 10453 (drv->hostapd || 10454 nlmode == NL80211_IFTYPE_AP_VLAN || 10455 nlmode == NL80211_IFTYPE_WDS || 10456 nlmode == NL80211_IFTYPE_MONITOR)) 10457 add_ifidx(drv, ifidx); 10458 10459 return 0; 10460 } 10461 10462 10463 static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 10464 enum wpa_driver_if_type type, 10465 const char *ifname) 10466 { 10467 struct wpa_driver_nl80211_data *drv = bss->drv; 10468 int ifindex = if_nametoindex(ifname); 10469 10470 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d added_if=%d", 10471 __func__, type, ifname, ifindex, bss->added_if); 10472 if (ifindex > 0 && (bss->added_if || bss->ifindex != ifindex)) 10473 nl80211_remove_iface(drv, ifindex); 10474 else if (ifindex > 0 && !bss->added_if) { 10475 struct wpa_driver_nl80211_data *drv2; 10476 dl_list_for_each(drv2, &drv->global->interfaces, 10477 struct wpa_driver_nl80211_data, list) 10478 del_ifidx(drv2, ifindex); 10479 } 10480 10481 if (type != WPA_IF_AP_BSS) 10482 return 0; 10483 10484 if (bss->added_if_into_bridge) { 10485 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 10486 bss->ifname) < 0) 10487 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 10488 "interface %s from bridge %s: %s", 10489 bss->ifname, bss->brname, strerror(errno)); 10490 } 10491 if (bss->added_bridge) { 10492 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 10493 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 10494 "bridge %s: %s", 10495 bss->brname, strerror(errno)); 10496 } 10497 10498 if (bss != drv->first_bss) { 10499 struct i802_bss *tbss; 10500 10501 wpa_printf(MSG_DEBUG, "nl80211: Not the first BSS - remove it"); 10502 for (tbss = drv->first_bss; tbss; tbss = tbss->next) { 10503 if (tbss->next == bss) { 10504 tbss->next = bss->next; 10505 /* Unsubscribe management frames */ 10506 nl80211_teardown_ap(bss); 10507 nl80211_destroy_bss(bss); 10508 if (!bss->added_if) 10509 i802_set_iface_flags(bss, 0); 10510 os_free(bss); 10511 bss = NULL; 10512 break; 10513 } 10514 } 10515 if (bss) 10516 wpa_printf(MSG_INFO, "nl80211: %s - could not find " 10517 "BSS %p in the list", __func__, bss); 10518 } else { 10519 wpa_printf(MSG_DEBUG, "nl80211: First BSS - reassign context"); 10520 nl80211_teardown_ap(bss); 10521 if (!bss->added_if && !drv->first_bss->next) 10522 wpa_driver_nl80211_del_beacon(drv); 10523 nl80211_destroy_bss(bss); 10524 if (!bss->added_if) 10525 i802_set_iface_flags(bss, 0); 10526 if (drv->first_bss->next) { 10527 drv->first_bss = drv->first_bss->next; 10528 drv->ctx = drv->first_bss->ctx; 10529 os_free(bss); 10530 } else { 10531 wpa_printf(MSG_DEBUG, "nl80211: No second BSS to reassign context to"); 10532 } 10533 } 10534 10535 return 0; 10536 } 10537 10538 10539 static int cookie_handler(struct nl_msg *msg, void *arg) 10540 { 10541 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 10542 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 10543 u64 *cookie = arg; 10544 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 10545 genlmsg_attrlen(gnlh, 0), NULL); 10546 if (tb[NL80211_ATTR_COOKIE]) 10547 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 10548 return NL_SKIP; 10549 } 10550 10551 10552 static int nl80211_send_frame_cmd(struct i802_bss *bss, 10553 unsigned int freq, unsigned int wait, 10554 const u8 *buf, size_t buf_len, 10555 u64 *cookie_out, int no_cck, int no_ack, 10556 int offchanok) 10557 { 10558 struct wpa_driver_nl80211_data *drv = bss->drv; 10559 struct nl_msg *msg; 10560 u64 cookie; 10561 int ret = -1; 10562 10563 msg = nlmsg_alloc(); 10564 if (!msg) 10565 return -1; 10566 10567 wpa_printf(MSG_MSGDUMP, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d " 10568 "no_ack=%d offchanok=%d", 10569 freq, wait, no_cck, no_ack, offchanok); 10570 wpa_hexdump(MSG_MSGDUMP, "CMD_FRAME", buf, buf_len); 10571 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME); 10572 10573 if (nl80211_set_iface_id(msg, bss) < 0) 10574 goto nla_put_failure; 10575 if (freq) 10576 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 10577 if (wait) 10578 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait); 10579 if (offchanok && ((drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) || 10580 drv->test_use_roc_tx)) 10581 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK); 10582 if (no_cck) 10583 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 10584 if (no_ack) 10585 NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK); 10586 10587 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf); 10588 10589 cookie = 0; 10590 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 10591 msg = NULL; 10592 if (ret) { 10593 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d " 10594 "(%s) (freq=%u wait=%u)", ret, strerror(-ret), 10595 freq, wait); 10596 goto nla_put_failure; 10597 } 10598 wpa_printf(MSG_MSGDUMP, "nl80211: Frame TX command accepted%s; " 10599 "cookie 0x%llx", no_ack ? " (no ACK)" : "", 10600 (long long unsigned int) cookie); 10601 10602 if (cookie_out) 10603 *cookie_out = no_ack ? (u64) -1 : cookie; 10604 10605 nla_put_failure: 10606 nlmsg_free(msg); 10607 return ret; 10608 } 10609 10610 10611 static int wpa_driver_nl80211_send_action(struct i802_bss *bss, 10612 unsigned int freq, 10613 unsigned int wait_time, 10614 const u8 *dst, const u8 *src, 10615 const u8 *bssid, 10616 const u8 *data, size_t data_len, 10617 int no_cck) 10618 { 10619 struct wpa_driver_nl80211_data *drv = bss->drv; 10620 int ret = -1; 10621 u8 *buf; 10622 struct ieee80211_hdr *hdr; 10623 10624 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, " 10625 "freq=%u MHz wait=%d ms no_cck=%d)", 10626 drv->ifindex, freq, wait_time, no_cck); 10627 10628 buf = os_zalloc(24 + data_len); 10629 if (buf == NULL) 10630 return ret; 10631 os_memcpy(buf + 24, data, data_len); 10632 hdr = (struct ieee80211_hdr *) buf; 10633 hdr->frame_control = 10634 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION); 10635 os_memcpy(hdr->addr1, dst, ETH_ALEN); 10636 os_memcpy(hdr->addr2, src, ETH_ALEN); 10637 os_memcpy(hdr->addr3, bssid, ETH_ALEN); 10638 10639 if (is_ap_interface(drv->nlmode) && 10640 (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) || 10641 (int) freq == bss->freq || drv->device_ap_sme || 10642 !drv->use_monitor)) 10643 ret = wpa_driver_nl80211_send_mlme(bss, buf, 24 + data_len, 10644 0, freq, no_cck, 1, 10645 wait_time); 10646 else 10647 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf, 10648 24 + data_len, 10649 &drv->send_action_cookie, 10650 no_cck, 0, 1); 10651 10652 os_free(buf); 10653 return ret; 10654 } 10655 10656 10657 static void wpa_driver_nl80211_send_action_cancel_wait(void *priv) 10658 { 10659 struct i802_bss *bss = priv; 10660 struct wpa_driver_nl80211_data *drv = bss->drv; 10661 struct nl_msg *msg; 10662 int ret; 10663 10664 msg = nlmsg_alloc(); 10665 if (!msg) 10666 return; 10667 10668 wpa_printf(MSG_DEBUG, "nl80211: Cancel TX frame wait: cookie=0x%llx", 10669 (long long unsigned int) drv->send_action_cookie); 10670 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL); 10671 10672 if (nl80211_set_iface_id(msg, bss) < 0) 10673 goto nla_put_failure; 10674 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie); 10675 10676 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10677 msg = NULL; 10678 if (ret) 10679 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d " 10680 "(%s)", ret, strerror(-ret)); 10681 10682 nla_put_failure: 10683 nlmsg_free(msg); 10684 } 10685 10686 10687 static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq, 10688 unsigned int duration) 10689 { 10690 struct i802_bss *bss = priv; 10691 struct wpa_driver_nl80211_data *drv = bss->drv; 10692 struct nl_msg *msg; 10693 int ret; 10694 u64 cookie; 10695 10696 msg = nlmsg_alloc(); 10697 if (!msg) 10698 return -1; 10699 10700 nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL); 10701 10702 if (nl80211_set_iface_id(msg, bss) < 0) 10703 goto nla_put_failure; 10704 10705 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 10706 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); 10707 10708 cookie = 0; 10709 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 10710 msg = NULL; 10711 if (ret == 0) { 10712 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie " 10713 "0x%llx for freq=%u MHz duration=%u", 10714 (long long unsigned int) cookie, freq, duration); 10715 drv->remain_on_chan_cookie = cookie; 10716 drv->pending_remain_on_chan = 1; 10717 return 0; 10718 } 10719 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel " 10720 "(freq=%d duration=%u): %d (%s)", 10721 freq, duration, ret, strerror(-ret)); 10722 nla_put_failure: 10723 nlmsg_free(msg); 10724 return -1; 10725 } 10726 10727 10728 static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv) 10729 { 10730 struct i802_bss *bss = priv; 10731 struct wpa_driver_nl80211_data *drv = bss->drv; 10732 struct nl_msg *msg; 10733 int ret; 10734 10735 if (!drv->pending_remain_on_chan) { 10736 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel " 10737 "to cancel"); 10738 return -1; 10739 } 10740 10741 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie " 10742 "0x%llx", 10743 (long long unsigned int) drv->remain_on_chan_cookie); 10744 10745 msg = nlmsg_alloc(); 10746 if (!msg) 10747 return -1; 10748 10749 nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL); 10750 10751 if (nl80211_set_iface_id(msg, bss) < 0) 10752 goto nla_put_failure; 10753 10754 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie); 10755 10756 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10757 msg = NULL; 10758 if (ret == 0) 10759 return 0; 10760 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: " 10761 "%d (%s)", ret, strerror(-ret)); 10762 nla_put_failure: 10763 nlmsg_free(msg); 10764 return -1; 10765 } 10766 10767 10768 static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report) 10769 { 10770 struct wpa_driver_nl80211_data *drv = bss->drv; 10771 10772 if (!report) { 10773 if (bss->nl_preq && drv->device_ap_sme && 10774 is_ap_interface(drv->nlmode) && !bss->in_deinit && 10775 !bss->static_ap) { 10776 /* 10777 * Do not disable Probe Request reporting that was 10778 * enabled in nl80211_setup_ap(). 10779 */ 10780 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of " 10781 "Probe Request reporting nl_preq=%p while " 10782 "in AP mode", bss->nl_preq); 10783 } else if (bss->nl_preq) { 10784 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request " 10785 "reporting nl_preq=%p", bss->nl_preq); 10786 nl80211_destroy_eloop_handle(&bss->nl_preq); 10787 } 10788 return 0; 10789 } 10790 10791 if (bss->nl_preq) { 10792 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting " 10793 "already on! nl_preq=%p", bss->nl_preq); 10794 return 0; 10795 } 10796 10797 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq"); 10798 if (bss->nl_preq == NULL) 10799 return -1; 10800 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request " 10801 "reporting nl_preq=%p", bss->nl_preq); 10802 10803 if (nl80211_register_frame(bss, bss->nl_preq, 10804 (WLAN_FC_TYPE_MGMT << 2) | 10805 (WLAN_FC_STYPE_PROBE_REQ << 4), 10806 NULL, 0) < 0) 10807 goto out_err; 10808 10809 nl80211_register_eloop_read(&bss->nl_preq, 10810 wpa_driver_nl80211_event_receive, 10811 bss->nl_cb); 10812 10813 return 0; 10814 10815 out_err: 10816 nl_destroy_handles(&bss->nl_preq); 10817 return -1; 10818 } 10819 10820 10821 static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 10822 int ifindex, int disabled) 10823 { 10824 struct nl_msg *msg; 10825 struct nlattr *bands, *band; 10826 int ret; 10827 10828 msg = nlmsg_alloc(); 10829 if (!msg) 10830 return -1; 10831 10832 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK); 10833 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 10834 10835 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES); 10836 if (!bands) 10837 goto nla_put_failure; 10838 10839 /* 10840 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything 10841 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS 10842 * rates. All 5 GHz rates are left enabled. 10843 */ 10844 band = nla_nest_start(msg, NL80211_BAND_2GHZ); 10845 if (!band) 10846 goto nla_put_failure; 10847 if (disabled) { 10848 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8, 10849 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 10850 } 10851 nla_nest_end(msg, band); 10852 10853 nla_nest_end(msg, bands); 10854 10855 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10856 msg = NULL; 10857 if (ret) { 10858 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d " 10859 "(%s)", ret, strerror(-ret)); 10860 } else 10861 drv->disabled_11b_rates = disabled; 10862 10863 return ret; 10864 10865 nla_put_failure: 10866 nlmsg_free(msg); 10867 return -1; 10868 } 10869 10870 10871 static int wpa_driver_nl80211_deinit_ap(void *priv) 10872 { 10873 struct i802_bss *bss = priv; 10874 struct wpa_driver_nl80211_data *drv = bss->drv; 10875 if (!is_ap_interface(drv->nlmode)) 10876 return -1; 10877 wpa_driver_nl80211_del_beacon(drv); 10878 10879 /* 10880 * If the P2P GO interface was dynamically added, then it is 10881 * possible that the interface change to station is not possible. 10882 */ 10883 if (drv->nlmode == NL80211_IFTYPE_P2P_GO && bss->if_dynamic) 10884 return 0; 10885 10886 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 10887 } 10888 10889 10890 static int wpa_driver_nl80211_stop_ap(void *priv) 10891 { 10892 struct i802_bss *bss = priv; 10893 struct wpa_driver_nl80211_data *drv = bss->drv; 10894 if (!is_ap_interface(drv->nlmode)) 10895 return -1; 10896 wpa_driver_nl80211_del_beacon(drv); 10897 bss->beacon_set = 0; 10898 return 0; 10899 } 10900 10901 10902 static int wpa_driver_nl80211_deinit_p2p_cli(void *priv) 10903 { 10904 struct i802_bss *bss = priv; 10905 struct wpa_driver_nl80211_data *drv = bss->drv; 10906 if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT) 10907 return -1; 10908 10909 /* 10910 * If the P2P Client interface was dynamically added, then it is 10911 * possible that the interface change to station is not possible. 10912 */ 10913 if (bss->if_dynamic) 10914 return 0; 10915 10916 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 10917 } 10918 10919 10920 static void wpa_driver_nl80211_resume(void *priv) 10921 { 10922 struct i802_bss *bss = priv; 10923 10924 if (i802_set_iface_flags(bss, 1)) 10925 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on resume event"); 10926 } 10927 10928 10929 static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap, 10930 const u8 *ies, size_t ies_len) 10931 { 10932 struct i802_bss *bss = priv; 10933 struct wpa_driver_nl80211_data *drv = bss->drv; 10934 int ret; 10935 u8 *data, *pos; 10936 size_t data_len; 10937 const u8 *own_addr = bss->addr; 10938 10939 if (action != 1) { 10940 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action " 10941 "action %d", action); 10942 return -1; 10943 } 10944 10945 /* 10946 * Action frame payload: 10947 * Category[1] = 6 (Fast BSS Transition) 10948 * Action[1] = 1 (Fast BSS Transition Request) 10949 * STA Address 10950 * Target AP Address 10951 * FT IEs 10952 */ 10953 10954 data_len = 2 + 2 * ETH_ALEN + ies_len; 10955 data = os_malloc(data_len); 10956 if (data == NULL) 10957 return -1; 10958 pos = data; 10959 *pos++ = 0x06; /* FT Action category */ 10960 *pos++ = action; 10961 os_memcpy(pos, own_addr, ETH_ALEN); 10962 pos += ETH_ALEN; 10963 os_memcpy(pos, target_ap, ETH_ALEN); 10964 pos += ETH_ALEN; 10965 os_memcpy(pos, ies, ies_len); 10966 10967 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0, 10968 drv->bssid, own_addr, drv->bssid, 10969 data, data_len, 0); 10970 os_free(data); 10971 10972 return ret; 10973 } 10974 10975 10976 static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis) 10977 { 10978 struct i802_bss *bss = priv; 10979 struct wpa_driver_nl80211_data *drv = bss->drv; 10980 struct nl_msg *msg; 10981 struct nlattr *cqm; 10982 int ret = -1; 10983 10984 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d " 10985 "hysteresis=%d", threshold, hysteresis); 10986 10987 msg = nlmsg_alloc(); 10988 if (!msg) 10989 return -1; 10990 10991 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM); 10992 10993 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10994 10995 cqm = nla_nest_start(msg, NL80211_ATTR_CQM); 10996 if (cqm == NULL) 10997 goto nla_put_failure; 10998 10999 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THOLD, threshold); 11000 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_HYST, hysteresis); 11001 nla_nest_end(msg, cqm); 11002 11003 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 11004 msg = NULL; 11005 11006 nla_put_failure: 11007 nlmsg_free(msg); 11008 return ret; 11009 } 11010 11011 11012 static int get_channel_width(struct nl_msg *msg, void *arg) 11013 { 11014 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 11015 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 11016 struct wpa_signal_info *sig_change = arg; 11017 11018 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 11019 genlmsg_attrlen(gnlh, 0), NULL); 11020 11021 sig_change->center_frq1 = -1; 11022 sig_change->center_frq2 = -1; 11023 sig_change->chanwidth = CHAN_WIDTH_UNKNOWN; 11024 11025 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) { 11026 sig_change->chanwidth = convert2width( 11027 nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH])); 11028 if (tb[NL80211_ATTR_CENTER_FREQ1]) 11029 sig_change->center_frq1 = 11030 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); 11031 if (tb[NL80211_ATTR_CENTER_FREQ2]) 11032 sig_change->center_frq2 = 11033 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); 11034 } 11035 11036 return NL_SKIP; 11037 } 11038 11039 11040 static int nl80211_get_channel_width(struct wpa_driver_nl80211_data *drv, 11041 struct wpa_signal_info *sig) 11042 { 11043 struct nl_msg *msg; 11044 11045 msg = nlmsg_alloc(); 11046 if (!msg) 11047 return -ENOMEM; 11048 11049 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_INTERFACE); 11050 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11051 11052 return send_and_recv_msgs(drv, msg, get_channel_width, sig); 11053 11054 nla_put_failure: 11055 nlmsg_free(msg); 11056 return -ENOBUFS; 11057 } 11058 11059 11060 static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si) 11061 { 11062 struct i802_bss *bss = priv; 11063 struct wpa_driver_nl80211_data *drv = bss->drv; 11064 int res; 11065 11066 os_memset(si, 0, sizeof(*si)); 11067 res = nl80211_get_link_signal(drv, si); 11068 if (res != 0) 11069 return res; 11070 11071 res = nl80211_get_channel_width(drv, si); 11072 if (res != 0) 11073 return res; 11074 11075 return nl80211_get_link_noise(drv, si); 11076 } 11077 11078 11079 static int wpa_driver_nl80211_shared_freq(void *priv) 11080 { 11081 struct i802_bss *bss = priv; 11082 struct wpa_driver_nl80211_data *drv = bss->drv; 11083 struct wpa_driver_nl80211_data *driver; 11084 int freq = 0; 11085 11086 /* 11087 * If the same PHY is in connected state with some other interface, 11088 * then retrieve the assoc freq. 11089 */ 11090 wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s", 11091 drv->phyname); 11092 11093 dl_list_for_each(driver, &drv->global->interfaces, 11094 struct wpa_driver_nl80211_data, list) { 11095 if (drv == driver || 11096 os_strcmp(drv->phyname, driver->phyname) != 0 || 11097 !driver->associated) 11098 continue; 11099 11100 wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s " 11101 MACSTR, 11102 driver->phyname, driver->first_bss->ifname, 11103 MAC2STR(driver->first_bss->addr)); 11104 if (is_ap_interface(driver->nlmode)) 11105 freq = driver->first_bss->freq; 11106 else 11107 freq = nl80211_get_assoc_freq(driver); 11108 wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d", 11109 drv->phyname, freq); 11110 } 11111 11112 if (!freq) 11113 wpa_printf(MSG_DEBUG, "nl80211: No shared interface for " 11114 "PHY (%s) in associated state", drv->phyname); 11115 11116 return freq; 11117 } 11118 11119 11120 static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len, 11121 int encrypt) 11122 { 11123 struct i802_bss *bss = priv; 11124 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0, 11125 0, 0, 0, 0); 11126 } 11127 11128 11129 static int nl80211_set_param(void *priv, const char *param) 11130 { 11131 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param); 11132 if (param == NULL) 11133 return 0; 11134 11135 #ifdef CONFIG_P2P 11136 if (os_strstr(param, "use_p2p_group_interface=1")) { 11137 struct i802_bss *bss = priv; 11138 struct wpa_driver_nl80211_data *drv = bss->drv; 11139 11140 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 11141 "interface"); 11142 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 11143 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 11144 } 11145 11146 if (os_strstr(param, "p2p_device=1")) { 11147 struct i802_bss *bss = priv; 11148 struct wpa_driver_nl80211_data *drv = bss->drv; 11149 drv->allow_p2p_device = 1; 11150 } 11151 #endif /* CONFIG_P2P */ 11152 11153 if (os_strstr(param, "use_monitor=1")) { 11154 struct i802_bss *bss = priv; 11155 struct wpa_driver_nl80211_data *drv = bss->drv; 11156 drv->use_monitor = 1; 11157 } 11158 11159 if (os_strstr(param, "force_connect_cmd=1")) { 11160 struct i802_bss *bss = priv; 11161 struct wpa_driver_nl80211_data *drv = bss->drv; 11162 drv->capa.flags &= ~WPA_DRIVER_FLAGS_SME; 11163 drv->force_connect_cmd = 1; 11164 } 11165 11166 if (os_strstr(param, "no_offchannel_tx=1")) { 11167 struct i802_bss *bss = priv; 11168 struct wpa_driver_nl80211_data *drv = bss->drv; 11169 drv->capa.flags &= ~WPA_DRIVER_FLAGS_OFFCHANNEL_TX; 11170 drv->test_use_roc_tx = 1; 11171 } 11172 11173 return 0; 11174 } 11175 11176 11177 static void * nl80211_global_init(void) 11178 { 11179 struct nl80211_global *global; 11180 struct netlink_config *cfg; 11181 11182 global = os_zalloc(sizeof(*global)); 11183 if (global == NULL) 11184 return NULL; 11185 global->ioctl_sock = -1; 11186 dl_list_init(&global->interfaces); 11187 global->if_add_ifindex = -1; 11188 11189 cfg = os_zalloc(sizeof(*cfg)); 11190 if (cfg == NULL) 11191 goto err; 11192 11193 cfg->ctx = global; 11194 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink; 11195 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink; 11196 global->netlink = netlink_init(cfg); 11197 if (global->netlink == NULL) { 11198 os_free(cfg); 11199 goto err; 11200 } 11201 11202 if (wpa_driver_nl80211_init_nl_global(global) < 0) 11203 goto err; 11204 11205 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0); 11206 if (global->ioctl_sock < 0) { 11207 wpa_printf(MSG_ERROR, "nl80211: socket(PF_INET,SOCK_DGRAM) failed: %s", 11208 strerror(errno)); 11209 goto err; 11210 } 11211 11212 return global; 11213 11214 err: 11215 nl80211_global_deinit(global); 11216 return NULL; 11217 } 11218 11219 11220 static void nl80211_global_deinit(void *priv) 11221 { 11222 struct nl80211_global *global = priv; 11223 if (global == NULL) 11224 return; 11225 if (!dl_list_empty(&global->interfaces)) { 11226 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at " 11227 "nl80211_global_deinit", 11228 dl_list_len(&global->interfaces)); 11229 } 11230 11231 if (global->netlink) 11232 netlink_deinit(global->netlink); 11233 11234 nl_destroy_handles(&global->nl); 11235 11236 if (global->nl_event) 11237 nl80211_destroy_eloop_handle(&global->nl_event); 11238 11239 nl_cb_put(global->nl_cb); 11240 11241 if (global->ioctl_sock >= 0) 11242 close(global->ioctl_sock); 11243 11244 os_free(global); 11245 } 11246 11247 11248 static const char * nl80211_get_radio_name(void *priv) 11249 { 11250 struct i802_bss *bss = priv; 11251 struct wpa_driver_nl80211_data *drv = bss->drv; 11252 return drv->phyname; 11253 } 11254 11255 11256 static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid, 11257 const u8 *pmkid) 11258 { 11259 struct nl_msg *msg; 11260 11261 msg = nlmsg_alloc(); 11262 if (!msg) 11263 return -ENOMEM; 11264 11265 nl80211_cmd(bss->drv, msg, 0, cmd); 11266 11267 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 11268 if (pmkid) 11269 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid); 11270 if (bssid) 11271 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); 11272 11273 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 11274 nla_put_failure: 11275 nlmsg_free(msg); 11276 return -ENOBUFS; 11277 } 11278 11279 11280 static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 11281 { 11282 struct i802_bss *bss = priv; 11283 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid)); 11284 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid); 11285 } 11286 11287 11288 static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 11289 { 11290 struct i802_bss *bss = priv; 11291 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR, 11292 MAC2STR(bssid)); 11293 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid); 11294 } 11295 11296 11297 static int nl80211_flush_pmkid(void *priv) 11298 { 11299 struct i802_bss *bss = priv; 11300 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs"); 11301 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL); 11302 } 11303 11304 11305 static void clean_survey_results(struct survey_results *survey_results) 11306 { 11307 struct freq_survey *survey, *tmp; 11308 11309 if (dl_list_empty(&survey_results->survey_list)) 11310 return; 11311 11312 dl_list_for_each_safe(survey, tmp, &survey_results->survey_list, 11313 struct freq_survey, list) { 11314 dl_list_del(&survey->list); 11315 os_free(survey); 11316 } 11317 } 11318 11319 11320 static void add_survey(struct nlattr **sinfo, u32 ifidx, 11321 struct dl_list *survey_list) 11322 { 11323 struct freq_survey *survey; 11324 11325 survey = os_zalloc(sizeof(struct freq_survey)); 11326 if (!survey) 11327 return; 11328 11329 survey->ifidx = ifidx; 11330 survey->freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); 11331 survey->filled = 0; 11332 11333 if (sinfo[NL80211_SURVEY_INFO_NOISE]) { 11334 survey->nf = (int8_t) 11335 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 11336 survey->filled |= SURVEY_HAS_NF; 11337 } 11338 11339 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]) { 11340 survey->channel_time = 11341 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]); 11342 survey->filled |= SURVEY_HAS_CHAN_TIME; 11343 } 11344 11345 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]) { 11346 survey->channel_time_busy = 11347 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]); 11348 survey->filled |= SURVEY_HAS_CHAN_TIME_BUSY; 11349 } 11350 11351 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]) { 11352 survey->channel_time_rx = 11353 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]); 11354 survey->filled |= SURVEY_HAS_CHAN_TIME_RX; 11355 } 11356 11357 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]) { 11358 survey->channel_time_tx = 11359 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]); 11360 survey->filled |= SURVEY_HAS_CHAN_TIME_TX; 11361 } 11362 11363 wpa_printf(MSG_DEBUG, "nl80211: Freq survey dump event (freq=%d MHz noise=%d channel_time=%ld busy_time=%ld tx_time=%ld rx_time=%ld filled=%04x)", 11364 survey->freq, 11365 survey->nf, 11366 (unsigned long int) survey->channel_time, 11367 (unsigned long int) survey->channel_time_busy, 11368 (unsigned long int) survey->channel_time_tx, 11369 (unsigned long int) survey->channel_time_rx, 11370 survey->filled); 11371 11372 dl_list_add_tail(survey_list, &survey->list); 11373 } 11374 11375 11376 static int check_survey_ok(struct nlattr **sinfo, u32 surveyed_freq, 11377 unsigned int freq_filter) 11378 { 11379 if (!freq_filter) 11380 return 1; 11381 11382 return freq_filter == surveyed_freq; 11383 } 11384 11385 11386 static int survey_handler(struct nl_msg *msg, void *arg) 11387 { 11388 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 11389 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 11390 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 11391 struct survey_results *survey_results; 11392 u32 surveyed_freq = 0; 11393 u32 ifidx; 11394 11395 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 11396 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 11397 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 11398 }; 11399 11400 survey_results = (struct survey_results *) arg; 11401 11402 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 11403 genlmsg_attrlen(gnlh, 0), NULL); 11404 11405 if (!tb[NL80211_ATTR_IFINDEX]) 11406 return NL_SKIP; 11407 11408 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 11409 11410 if (!tb[NL80211_ATTR_SURVEY_INFO]) 11411 return NL_SKIP; 11412 11413 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 11414 tb[NL80211_ATTR_SURVEY_INFO], 11415 survey_policy)) 11416 return NL_SKIP; 11417 11418 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) { 11419 wpa_printf(MSG_ERROR, "nl80211: Invalid survey data"); 11420 return NL_SKIP; 11421 } 11422 11423 surveyed_freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); 11424 11425 if (!check_survey_ok(sinfo, surveyed_freq, 11426 survey_results->freq_filter)) 11427 return NL_SKIP; 11428 11429 if (survey_results->freq_filter && 11430 survey_results->freq_filter != surveyed_freq) { 11431 wpa_printf(MSG_EXCESSIVE, "nl80211: Ignoring survey data for freq %d MHz", 11432 surveyed_freq); 11433 return NL_SKIP; 11434 } 11435 11436 add_survey(sinfo, ifidx, &survey_results->survey_list); 11437 11438 return NL_SKIP; 11439 } 11440 11441 11442 static int wpa_driver_nl80211_get_survey(void *priv, unsigned int freq) 11443 { 11444 struct i802_bss *bss = priv; 11445 struct wpa_driver_nl80211_data *drv = bss->drv; 11446 struct nl_msg *msg; 11447 int err = -ENOBUFS; 11448 union wpa_event_data data; 11449 struct survey_results *survey_results; 11450 11451 os_memset(&data, 0, sizeof(data)); 11452 survey_results = &data.survey_results; 11453 11454 dl_list_init(&survey_results->survey_list); 11455 11456 msg = nlmsg_alloc(); 11457 if (!msg) 11458 goto nla_put_failure; 11459 11460 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 11461 11462 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11463 11464 if (freq) 11465 data.survey_results.freq_filter = freq; 11466 11467 do { 11468 wpa_printf(MSG_DEBUG, "nl80211: Fetch survey data"); 11469 err = send_and_recv_msgs(drv, msg, survey_handler, 11470 survey_results); 11471 } while (err > 0); 11472 11473 if (err) { 11474 wpa_printf(MSG_ERROR, "nl80211: Failed to process survey data"); 11475 goto out_clean; 11476 } 11477 11478 wpa_supplicant_event(drv->ctx, EVENT_SURVEY, &data); 11479 11480 out_clean: 11481 clean_survey_results(survey_results); 11482 nla_put_failure: 11483 return err; 11484 } 11485 11486 11487 static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck, 11488 const u8 *replay_ctr) 11489 { 11490 struct i802_bss *bss = priv; 11491 struct wpa_driver_nl80211_data *drv = bss->drv; 11492 struct nlattr *replay_nested; 11493 struct nl_msg *msg; 11494 11495 msg = nlmsg_alloc(); 11496 if (!msg) 11497 return; 11498 11499 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD); 11500 11501 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 11502 11503 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); 11504 if (!replay_nested) 11505 goto nla_put_failure; 11506 11507 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek); 11508 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck); 11509 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN, 11510 replay_ctr); 11511 11512 nla_nest_end(msg, replay_nested); 11513 11514 send_and_recv_msgs(drv, msg, NULL, NULL); 11515 return; 11516 nla_put_failure: 11517 nlmsg_free(msg); 11518 } 11519 11520 11521 static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr, 11522 const u8 *addr, int qos) 11523 { 11524 /* send data frame to poll STA and check whether 11525 * this frame is ACKed */ 11526 struct { 11527 struct ieee80211_hdr hdr; 11528 u16 qos_ctl; 11529 } STRUCT_PACKED nulldata; 11530 size_t size; 11531 11532 /* Send data frame to poll STA and check whether this frame is ACKed */ 11533 11534 os_memset(&nulldata, 0, sizeof(nulldata)); 11535 11536 if (qos) { 11537 nulldata.hdr.frame_control = 11538 IEEE80211_FC(WLAN_FC_TYPE_DATA, 11539 WLAN_FC_STYPE_QOS_NULL); 11540 size = sizeof(nulldata); 11541 } else { 11542 nulldata.hdr.frame_control = 11543 IEEE80211_FC(WLAN_FC_TYPE_DATA, 11544 WLAN_FC_STYPE_NULLFUNC); 11545 size = sizeof(struct ieee80211_hdr); 11546 } 11547 11548 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS); 11549 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN); 11550 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 11551 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 11552 11553 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0, 0, 0, 11554 0, 0) < 0) 11555 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to " 11556 "send poll frame"); 11557 } 11558 11559 static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr, 11560 int qos) 11561 { 11562 struct i802_bss *bss = priv; 11563 struct wpa_driver_nl80211_data *drv = bss->drv; 11564 struct nl_msg *msg; 11565 11566 if (!drv->poll_command_supported) { 11567 nl80211_send_null_frame(bss, own_addr, addr, qos); 11568 return; 11569 } 11570 11571 msg = nlmsg_alloc(); 11572 if (!msg) 11573 return; 11574 11575 nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT); 11576 11577 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 11578 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 11579 11580 send_and_recv_msgs(drv, msg, NULL, NULL); 11581 return; 11582 nla_put_failure: 11583 nlmsg_free(msg); 11584 } 11585 11586 11587 static int nl80211_set_power_save(struct i802_bss *bss, int enabled) 11588 { 11589 struct nl_msg *msg; 11590 11591 msg = nlmsg_alloc(); 11592 if (!msg) 11593 return -ENOMEM; 11594 11595 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE); 11596 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 11597 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, 11598 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED); 11599 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 11600 nla_put_failure: 11601 nlmsg_free(msg); 11602 return -ENOBUFS; 11603 } 11604 11605 11606 static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps, 11607 int ctwindow) 11608 { 11609 struct i802_bss *bss = priv; 11610 11611 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d " 11612 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow); 11613 11614 if (opp_ps != -1 || ctwindow != -1) { 11615 #ifdef ANDROID_P2P 11616 wpa_driver_set_p2p_ps(priv, legacy_ps, opp_ps, ctwindow); 11617 #else /* ANDROID_P2P */ 11618 return -1; /* Not yet supported */ 11619 #endif /* ANDROID_P2P */ 11620 } 11621 11622 if (legacy_ps == -1) 11623 return 0; 11624 if (legacy_ps != 0 && legacy_ps != 1) 11625 return -1; /* Not yet supported */ 11626 11627 return nl80211_set_power_save(bss, legacy_ps); 11628 } 11629 11630 11631 static int nl80211_start_radar_detection(void *priv, 11632 struct hostapd_freq_params *freq) 11633 { 11634 struct i802_bss *bss = priv; 11635 struct wpa_driver_nl80211_data *drv = bss->drv; 11636 struct nl_msg *msg; 11637 int ret; 11638 11639 wpa_printf(MSG_DEBUG, "nl80211: Start radar detection (CAC) %d MHz (ht_enabled=%d, vht_enabled=%d, bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)", 11640 freq->freq, freq->ht_enabled, freq->vht_enabled, 11641 freq->bandwidth, freq->center_freq1, freq->center_freq2); 11642 11643 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_RADAR)) { 11644 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support radar " 11645 "detection"); 11646 return -1; 11647 } 11648 11649 msg = nlmsg_alloc(); 11650 if (!msg) 11651 return -1; 11652 11653 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_RADAR_DETECT); 11654 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11655 11656 if (nl80211_put_freq_params(msg, freq) < 0) 11657 goto nla_put_failure; 11658 11659 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 11660 msg = NULL; 11661 if (ret == 0) 11662 return 0; 11663 wpa_printf(MSG_DEBUG, "nl80211: Failed to start radar detection: " 11664 "%d (%s)", ret, strerror(-ret)); 11665 nla_put_failure: 11666 nlmsg_free(msg); 11667 return -1; 11668 } 11669 11670 #ifdef CONFIG_TDLS 11671 11672 static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code, 11673 u8 dialog_token, u16 status_code, 11674 u32 peer_capab, int initiator, const u8 *buf, 11675 size_t len) 11676 { 11677 struct i802_bss *bss = priv; 11678 struct wpa_driver_nl80211_data *drv = bss->drv; 11679 struct nl_msg *msg; 11680 11681 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 11682 return -EOPNOTSUPP; 11683 11684 if (!dst) 11685 return -EINVAL; 11686 11687 msg = nlmsg_alloc(); 11688 if (!msg) 11689 return -ENOMEM; 11690 11691 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT); 11692 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11693 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); 11694 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code); 11695 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token); 11696 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code); 11697 if (peer_capab) { 11698 /* 11699 * The internal enum tdls_peer_capability definition is 11700 * currently identical with the nl80211 enum 11701 * nl80211_tdls_peer_capability, so no conversion is needed 11702 * here. 11703 */ 11704 NLA_PUT_U32(msg, NL80211_ATTR_TDLS_PEER_CAPABILITY, peer_capab); 11705 } 11706 if (initiator) 11707 NLA_PUT_FLAG(msg, NL80211_ATTR_TDLS_INITIATOR); 11708 NLA_PUT(msg, NL80211_ATTR_IE, len, buf); 11709 11710 return send_and_recv_msgs(drv, msg, NULL, NULL); 11711 11712 nla_put_failure: 11713 nlmsg_free(msg); 11714 return -ENOBUFS; 11715 } 11716 11717 11718 static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer) 11719 { 11720 struct i802_bss *bss = priv; 11721 struct wpa_driver_nl80211_data *drv = bss->drv; 11722 struct nl_msg *msg; 11723 enum nl80211_tdls_operation nl80211_oper; 11724 11725 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 11726 return -EOPNOTSUPP; 11727 11728 switch (oper) { 11729 case TDLS_DISCOVERY_REQ: 11730 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ; 11731 break; 11732 case TDLS_SETUP: 11733 nl80211_oper = NL80211_TDLS_SETUP; 11734 break; 11735 case TDLS_TEARDOWN: 11736 nl80211_oper = NL80211_TDLS_TEARDOWN; 11737 break; 11738 case TDLS_ENABLE_LINK: 11739 nl80211_oper = NL80211_TDLS_ENABLE_LINK; 11740 break; 11741 case TDLS_DISABLE_LINK: 11742 nl80211_oper = NL80211_TDLS_DISABLE_LINK; 11743 break; 11744 case TDLS_ENABLE: 11745 return 0; 11746 case TDLS_DISABLE: 11747 return 0; 11748 default: 11749 return -EINVAL; 11750 } 11751 11752 msg = nlmsg_alloc(); 11753 if (!msg) 11754 return -ENOMEM; 11755 11756 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER); 11757 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper); 11758 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11759 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer); 11760 11761 return send_and_recv_msgs(drv, msg, NULL, NULL); 11762 11763 nla_put_failure: 11764 nlmsg_free(msg); 11765 return -ENOBUFS; 11766 } 11767 11768 #endif /* CONFIG TDLS */ 11769 11770 11771 #ifdef ANDROID 11772 11773 typedef struct android_wifi_priv_cmd { 11774 char *buf; 11775 int used_len; 11776 int total_len; 11777 } android_wifi_priv_cmd; 11778 11779 static int drv_errors = 0; 11780 11781 static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv) 11782 { 11783 drv_errors++; 11784 if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) { 11785 drv_errors = 0; 11786 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED"); 11787 } 11788 } 11789 11790 11791 static int android_priv_cmd(struct i802_bss *bss, const char *cmd) 11792 { 11793 struct wpa_driver_nl80211_data *drv = bss->drv; 11794 struct ifreq ifr; 11795 android_wifi_priv_cmd priv_cmd; 11796 char buf[MAX_DRV_CMD_SIZE]; 11797 int ret; 11798 11799 os_memset(&ifr, 0, sizeof(ifr)); 11800 os_memset(&priv_cmd, 0, sizeof(priv_cmd)); 11801 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 11802 11803 os_memset(buf, 0, sizeof(buf)); 11804 os_strlcpy(buf, cmd, sizeof(buf)); 11805 11806 priv_cmd.buf = buf; 11807 priv_cmd.used_len = sizeof(buf); 11808 priv_cmd.total_len = sizeof(buf); 11809 ifr.ifr_data = &priv_cmd; 11810 11811 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 11812 if (ret < 0) { 11813 wpa_printf(MSG_ERROR, "%s: failed to issue private commands", 11814 __func__); 11815 wpa_driver_send_hang_msg(drv); 11816 return ret; 11817 } 11818 11819 drv_errors = 0; 11820 return 0; 11821 } 11822 11823 11824 static int android_pno_start(struct i802_bss *bss, 11825 struct wpa_driver_scan_params *params) 11826 { 11827 struct wpa_driver_nl80211_data *drv = bss->drv; 11828 struct ifreq ifr; 11829 android_wifi_priv_cmd priv_cmd; 11830 int ret = 0, i = 0, bp; 11831 char buf[WEXT_PNO_MAX_COMMAND_SIZE]; 11832 11833 bp = WEXT_PNOSETUP_HEADER_SIZE; 11834 os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp); 11835 buf[bp++] = WEXT_PNO_TLV_PREFIX; 11836 buf[bp++] = WEXT_PNO_TLV_VERSION; 11837 buf[bp++] = WEXT_PNO_TLV_SUBVERSION; 11838 buf[bp++] = WEXT_PNO_TLV_RESERVED; 11839 11840 while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) { 11841 /* Check that there is enough space needed for 1 more SSID, the 11842 * other sections and null termination */ 11843 if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN + 11844 WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf)) 11845 break; 11846 wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan", 11847 params->ssids[i].ssid, 11848 params->ssids[i].ssid_len); 11849 buf[bp++] = WEXT_PNO_SSID_SECTION; 11850 buf[bp++] = params->ssids[i].ssid_len; 11851 os_memcpy(&buf[bp], params->ssids[i].ssid, 11852 params->ssids[i].ssid_len); 11853 bp += params->ssids[i].ssid_len; 11854 i++; 11855 } 11856 11857 buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION; 11858 os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x", 11859 WEXT_PNO_SCAN_INTERVAL); 11860 bp += WEXT_PNO_SCAN_INTERVAL_LENGTH; 11861 11862 buf[bp++] = WEXT_PNO_REPEAT_SECTION; 11863 os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x", 11864 WEXT_PNO_REPEAT); 11865 bp += WEXT_PNO_REPEAT_LENGTH; 11866 11867 buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION; 11868 os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x", 11869 WEXT_PNO_MAX_REPEAT); 11870 bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1; 11871 11872 memset(&ifr, 0, sizeof(ifr)); 11873 memset(&priv_cmd, 0, sizeof(priv_cmd)); 11874 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 11875 11876 priv_cmd.buf = buf; 11877 priv_cmd.used_len = bp; 11878 priv_cmd.total_len = bp; 11879 ifr.ifr_data = &priv_cmd; 11880 11881 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 11882 11883 if (ret < 0) { 11884 wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d", 11885 ret); 11886 wpa_driver_send_hang_msg(drv); 11887 return ret; 11888 } 11889 11890 drv_errors = 0; 11891 11892 return android_priv_cmd(bss, "PNOFORCE 1"); 11893 } 11894 11895 11896 static int android_pno_stop(struct i802_bss *bss) 11897 { 11898 return android_priv_cmd(bss, "PNOFORCE 0"); 11899 } 11900 11901 #endif /* ANDROID */ 11902 11903 11904 static int driver_nl80211_set_key(const char *ifname, void *priv, 11905 enum wpa_alg alg, const u8 *addr, 11906 int key_idx, int set_tx, 11907 const u8 *seq, size_t seq_len, 11908 const u8 *key, size_t key_len) 11909 { 11910 struct i802_bss *bss = priv; 11911 return wpa_driver_nl80211_set_key(ifname, bss, alg, addr, key_idx, 11912 set_tx, seq, seq_len, key, key_len); 11913 } 11914 11915 11916 static int driver_nl80211_scan2(void *priv, 11917 struct wpa_driver_scan_params *params) 11918 { 11919 struct i802_bss *bss = priv; 11920 return wpa_driver_nl80211_scan(bss, params); 11921 } 11922 11923 11924 static int driver_nl80211_deauthenticate(void *priv, const u8 *addr, 11925 int reason_code) 11926 { 11927 struct i802_bss *bss = priv; 11928 return wpa_driver_nl80211_deauthenticate(bss, addr, reason_code); 11929 } 11930 11931 11932 static int driver_nl80211_authenticate(void *priv, 11933 struct wpa_driver_auth_params *params) 11934 { 11935 struct i802_bss *bss = priv; 11936 return wpa_driver_nl80211_authenticate(bss, params); 11937 } 11938 11939 11940 static void driver_nl80211_deinit(void *priv) 11941 { 11942 struct i802_bss *bss = priv; 11943 wpa_driver_nl80211_deinit(bss); 11944 } 11945 11946 11947 static int driver_nl80211_if_remove(void *priv, enum wpa_driver_if_type type, 11948 const char *ifname) 11949 { 11950 struct i802_bss *bss = priv; 11951 return wpa_driver_nl80211_if_remove(bss, type, ifname); 11952 } 11953 11954 11955 static int driver_nl80211_send_mlme(void *priv, const u8 *data, 11956 size_t data_len, int noack) 11957 { 11958 struct i802_bss *bss = priv; 11959 return wpa_driver_nl80211_send_mlme(bss, data, data_len, noack, 11960 0, 0, 0, 0); 11961 } 11962 11963 11964 static int driver_nl80211_sta_remove(void *priv, const u8 *addr) 11965 { 11966 struct i802_bss *bss = priv; 11967 return wpa_driver_nl80211_sta_remove(bss, addr); 11968 } 11969 11970 11971 static int driver_nl80211_set_sta_vlan(void *priv, const u8 *addr, 11972 const char *ifname, int vlan_id) 11973 { 11974 struct i802_bss *bss = priv; 11975 return i802_set_sta_vlan(bss, addr, ifname, vlan_id); 11976 } 11977 11978 11979 static int driver_nl80211_read_sta_data(void *priv, 11980 struct hostap_sta_driver_data *data, 11981 const u8 *addr) 11982 { 11983 struct i802_bss *bss = priv; 11984 return i802_read_sta_data(bss, data, addr); 11985 } 11986 11987 11988 static int driver_nl80211_send_action(void *priv, unsigned int freq, 11989 unsigned int wait_time, 11990 const u8 *dst, const u8 *src, 11991 const u8 *bssid, 11992 const u8 *data, size_t data_len, 11993 int no_cck) 11994 { 11995 struct i802_bss *bss = priv; 11996 return wpa_driver_nl80211_send_action(bss, freq, wait_time, dst, src, 11997 bssid, data, data_len, no_cck); 11998 } 11999 12000 12001 static int driver_nl80211_probe_req_report(void *priv, int report) 12002 { 12003 struct i802_bss *bss = priv; 12004 return wpa_driver_nl80211_probe_req_report(bss, report); 12005 } 12006 12007 12008 static int wpa_driver_nl80211_update_ft_ies(void *priv, const u8 *md, 12009 const u8 *ies, size_t ies_len) 12010 { 12011 int ret; 12012 struct nl_msg *msg; 12013 struct i802_bss *bss = priv; 12014 struct wpa_driver_nl80211_data *drv = bss->drv; 12015 u16 mdid = WPA_GET_LE16(md); 12016 12017 msg = nlmsg_alloc(); 12018 if (!msg) 12019 return -ENOMEM; 12020 12021 wpa_printf(MSG_DEBUG, "nl80211: Updating FT IEs"); 12022 nl80211_cmd(drv, msg, 0, NL80211_CMD_UPDATE_FT_IES); 12023 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 12024 NLA_PUT(msg, NL80211_ATTR_IE, ies_len, ies); 12025 NLA_PUT_U16(msg, NL80211_ATTR_MDID, mdid); 12026 12027 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 12028 if (ret) { 12029 wpa_printf(MSG_DEBUG, "nl80211: update_ft_ies failed " 12030 "err=%d (%s)", ret, strerror(-ret)); 12031 } 12032 12033 return ret; 12034 12035 nla_put_failure: 12036 nlmsg_free(msg); 12037 return -ENOBUFS; 12038 } 12039 12040 12041 const u8 * wpa_driver_nl80211_get_macaddr(void *priv) 12042 { 12043 struct i802_bss *bss = priv; 12044 struct wpa_driver_nl80211_data *drv = bss->drv; 12045 12046 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) 12047 return NULL; 12048 12049 return bss->addr; 12050 } 12051 12052 12053 static const char * scan_state_str(enum scan_states scan_state) 12054 { 12055 switch (scan_state) { 12056 case NO_SCAN: 12057 return "NO_SCAN"; 12058 case SCAN_REQUESTED: 12059 return "SCAN_REQUESTED"; 12060 case SCAN_STARTED: 12061 return "SCAN_STARTED"; 12062 case SCAN_COMPLETED: 12063 return "SCAN_COMPLETED"; 12064 case SCAN_ABORTED: 12065 return "SCAN_ABORTED"; 12066 case SCHED_SCAN_STARTED: 12067 return "SCHED_SCAN_STARTED"; 12068 case SCHED_SCAN_STOPPED: 12069 return "SCHED_SCAN_STOPPED"; 12070 case SCHED_SCAN_RESULTS: 12071 return "SCHED_SCAN_RESULTS"; 12072 } 12073 12074 return "??"; 12075 } 12076 12077 12078 static int wpa_driver_nl80211_status(void *priv, char *buf, size_t buflen) 12079 { 12080 struct i802_bss *bss = priv; 12081 struct wpa_driver_nl80211_data *drv = bss->drv; 12082 int res; 12083 char *pos, *end; 12084 12085 pos = buf; 12086 end = buf + buflen; 12087 12088 res = os_snprintf(pos, end - pos, 12089 "ifindex=%d\n" 12090 "ifname=%s\n" 12091 "brname=%s\n" 12092 "addr=" MACSTR "\n" 12093 "freq=%d\n" 12094 "%s%s%s%s%s", 12095 bss->ifindex, 12096 bss->ifname, 12097 bss->brname, 12098 MAC2STR(bss->addr), 12099 bss->freq, 12100 bss->beacon_set ? "beacon_set=1\n" : "", 12101 bss->added_if_into_bridge ? 12102 "added_if_into_bridge=1\n" : "", 12103 bss->added_bridge ? "added_bridge=1\n" : "", 12104 bss->in_deinit ? "in_deinit=1\n" : "", 12105 bss->if_dynamic ? "if_dynamic=1\n" : ""); 12106 if (res < 0 || res >= end - pos) 12107 return pos - buf; 12108 pos += res; 12109 12110 if (bss->wdev_id_set) { 12111 res = os_snprintf(pos, end - pos, "wdev_id=%llu\n", 12112 (unsigned long long) bss->wdev_id); 12113 if (res < 0 || res >= end - pos) 12114 return pos - buf; 12115 pos += res; 12116 } 12117 12118 res = os_snprintf(pos, end - pos, 12119 "phyname=%s\n" 12120 "perm_addr=" MACSTR "\n" 12121 "drv_ifindex=%d\n" 12122 "operstate=%d\n" 12123 "scan_state=%s\n" 12124 "auth_bssid=" MACSTR "\n" 12125 "auth_attempt_bssid=" MACSTR "\n" 12126 "bssid=" MACSTR "\n" 12127 "prev_bssid=" MACSTR "\n" 12128 "associated=%d\n" 12129 "assoc_freq=%u\n" 12130 "monitor_sock=%d\n" 12131 "monitor_ifidx=%d\n" 12132 "monitor_refcount=%d\n" 12133 "last_mgmt_freq=%u\n" 12134 "eapol_tx_sock=%d\n" 12135 "%s%s%s%s%s%s%s%s%s%s%s%s%s%s", 12136 drv->phyname, 12137 MAC2STR(drv->perm_addr), 12138 drv->ifindex, 12139 drv->operstate, 12140 scan_state_str(drv->scan_state), 12141 MAC2STR(drv->auth_bssid), 12142 MAC2STR(drv->auth_attempt_bssid), 12143 MAC2STR(drv->bssid), 12144 MAC2STR(drv->prev_bssid), 12145 drv->associated, 12146 drv->assoc_freq, 12147 drv->monitor_sock, 12148 drv->monitor_ifidx, 12149 drv->monitor_refcount, 12150 drv->last_mgmt_freq, 12151 drv->eapol_tx_sock, 12152 drv->ignore_if_down_event ? 12153 "ignore_if_down_event=1\n" : "", 12154 drv->scan_complete_events ? 12155 "scan_complete_events=1\n" : "", 12156 drv->disabled_11b_rates ? 12157 "disabled_11b_rates=1\n" : "", 12158 drv->pending_remain_on_chan ? 12159 "pending_remain_on_chan=1\n" : "", 12160 drv->in_interface_list ? "in_interface_list=1\n" : "", 12161 drv->device_ap_sme ? "device_ap_sme=1\n" : "", 12162 drv->poll_command_supported ? 12163 "poll_command_supported=1\n" : "", 12164 drv->data_tx_status ? "data_tx_status=1\n" : "", 12165 drv->scan_for_auth ? "scan_for_auth=1\n" : "", 12166 drv->retry_auth ? "retry_auth=1\n" : "", 12167 drv->use_monitor ? "use_monitor=1\n" : "", 12168 drv->ignore_next_local_disconnect ? 12169 "ignore_next_local_disconnect=1\n" : "", 12170 drv->ignore_next_local_deauth ? 12171 "ignore_next_local_deauth=1\n" : "", 12172 drv->allow_p2p_device ? "allow_p2p_device=1\n" : ""); 12173 if (res < 0 || res >= end - pos) 12174 return pos - buf; 12175 pos += res; 12176 12177 if (drv->has_capability) { 12178 res = os_snprintf(pos, end - pos, 12179 "capa.key_mgmt=0x%x\n" 12180 "capa.enc=0x%x\n" 12181 "capa.auth=0x%x\n" 12182 "capa.flags=0x%x\n" 12183 "capa.max_scan_ssids=%d\n" 12184 "capa.max_sched_scan_ssids=%d\n" 12185 "capa.sched_scan_supported=%d\n" 12186 "capa.max_match_sets=%d\n" 12187 "capa.max_remain_on_chan=%u\n" 12188 "capa.max_stations=%u\n" 12189 "capa.probe_resp_offloads=0x%x\n" 12190 "capa.max_acl_mac_addrs=%u\n" 12191 "capa.num_multichan_concurrent=%u\n", 12192 drv->capa.key_mgmt, 12193 drv->capa.enc, 12194 drv->capa.auth, 12195 drv->capa.flags, 12196 drv->capa.max_scan_ssids, 12197 drv->capa.max_sched_scan_ssids, 12198 drv->capa.sched_scan_supported, 12199 drv->capa.max_match_sets, 12200 drv->capa.max_remain_on_chan, 12201 drv->capa.max_stations, 12202 drv->capa.probe_resp_offloads, 12203 drv->capa.max_acl_mac_addrs, 12204 drv->capa.num_multichan_concurrent); 12205 if (res < 0 || res >= end - pos) 12206 return pos - buf; 12207 pos += res; 12208 } 12209 12210 return pos - buf; 12211 } 12212 12213 12214 static int set_beacon_data(struct nl_msg *msg, struct beacon_data *settings) 12215 { 12216 if (settings->head) 12217 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, 12218 settings->head_len, settings->head); 12219 12220 if (settings->tail) 12221 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, 12222 settings->tail_len, settings->tail); 12223 12224 if (settings->beacon_ies) 12225 NLA_PUT(msg, NL80211_ATTR_IE, 12226 settings->beacon_ies_len, settings->beacon_ies); 12227 12228 if (settings->proberesp_ies) 12229 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, 12230 settings->proberesp_ies_len, settings->proberesp_ies); 12231 12232 if (settings->assocresp_ies) 12233 NLA_PUT(msg, 12234 NL80211_ATTR_IE_ASSOC_RESP, 12235 settings->assocresp_ies_len, settings->assocresp_ies); 12236 12237 if (settings->probe_resp) 12238 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, 12239 settings->probe_resp_len, settings->probe_resp); 12240 12241 return 0; 12242 12243 nla_put_failure: 12244 return -ENOBUFS; 12245 } 12246 12247 12248 static int nl80211_switch_channel(void *priv, struct csa_settings *settings) 12249 { 12250 struct nl_msg *msg; 12251 struct i802_bss *bss = priv; 12252 struct wpa_driver_nl80211_data *drv = bss->drv; 12253 struct nlattr *beacon_csa; 12254 int ret = -ENOBUFS; 12255 12256 wpa_printf(MSG_DEBUG, "nl80211: Channel switch request (cs_count=%u block_tx=%u freq=%d width=%d cf1=%d cf2=%d)", 12257 settings->cs_count, settings->block_tx, 12258 settings->freq_params.freq, settings->freq_params.bandwidth, 12259 settings->freq_params.center_freq1, 12260 settings->freq_params.center_freq2); 12261 12262 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_AP_CSA)) { 12263 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support channel switch command"); 12264 return -EOPNOTSUPP; 12265 } 12266 12267 if ((drv->nlmode != NL80211_IFTYPE_AP) && 12268 (drv->nlmode != NL80211_IFTYPE_P2P_GO)) 12269 return -EOPNOTSUPP; 12270 12271 /* check settings validity */ 12272 if (!settings->beacon_csa.tail || 12273 ((settings->beacon_csa.tail_len <= 12274 settings->counter_offset_beacon) || 12275 (settings->beacon_csa.tail[settings->counter_offset_beacon] != 12276 settings->cs_count))) 12277 return -EINVAL; 12278 12279 if (settings->beacon_csa.probe_resp && 12280 ((settings->beacon_csa.probe_resp_len <= 12281 settings->counter_offset_presp) || 12282 (settings->beacon_csa.probe_resp[settings->counter_offset_presp] != 12283 settings->cs_count))) 12284 return -EINVAL; 12285 12286 msg = nlmsg_alloc(); 12287 if (!msg) 12288 return -ENOMEM; 12289 12290 nl80211_cmd(drv, msg, 0, NL80211_CMD_CHANNEL_SWITCH); 12291 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 12292 NLA_PUT_U32(msg, NL80211_ATTR_CH_SWITCH_COUNT, settings->cs_count); 12293 ret = nl80211_put_freq_params(msg, &settings->freq_params); 12294 if (ret) 12295 goto error; 12296 12297 if (settings->block_tx) 12298 NLA_PUT_FLAG(msg, NL80211_ATTR_CH_SWITCH_BLOCK_TX); 12299 12300 /* beacon_after params */ 12301 ret = set_beacon_data(msg, &settings->beacon_after); 12302 if (ret) 12303 goto error; 12304 12305 /* beacon_csa params */ 12306 beacon_csa = nla_nest_start(msg, NL80211_ATTR_CSA_IES); 12307 if (!beacon_csa) 12308 goto nla_put_failure; 12309 12310 ret = set_beacon_data(msg, &settings->beacon_csa); 12311 if (ret) 12312 goto error; 12313 12314 NLA_PUT_U16(msg, NL80211_ATTR_CSA_C_OFF_BEACON, 12315 settings->counter_offset_beacon); 12316 12317 if (settings->beacon_csa.probe_resp) 12318 NLA_PUT_U16(msg, NL80211_ATTR_CSA_C_OFF_PRESP, 12319 settings->counter_offset_presp); 12320 12321 nla_nest_end(msg, beacon_csa); 12322 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 12323 if (ret) { 12324 wpa_printf(MSG_DEBUG, "nl80211: switch_channel failed err=%d (%s)", 12325 ret, strerror(-ret)); 12326 } 12327 return ret; 12328 12329 nla_put_failure: 12330 ret = -ENOBUFS; 12331 error: 12332 nlmsg_free(msg); 12333 wpa_printf(MSG_DEBUG, "nl80211: Could not build channel switch request"); 12334 return ret; 12335 } 12336 12337 12338 #ifdef CONFIG_TESTING_OPTIONS 12339 static int cmd_reply_handler(struct nl_msg *msg, void *arg) 12340 { 12341 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 12342 struct wpabuf *buf = arg; 12343 12344 if (!buf) 12345 return NL_SKIP; 12346 12347 if ((size_t) genlmsg_attrlen(gnlh, 0) > wpabuf_tailroom(buf)) { 12348 wpa_printf(MSG_INFO, "nl80211: insufficient buffer space for reply"); 12349 return NL_SKIP; 12350 } 12351 12352 wpabuf_put_data(buf, genlmsg_attrdata(gnlh, 0), 12353 genlmsg_attrlen(gnlh, 0)); 12354 12355 return NL_SKIP; 12356 } 12357 #endif /* CONFIG_TESTING_OPTIONS */ 12358 12359 12360 static int vendor_reply_handler(struct nl_msg *msg, void *arg) 12361 { 12362 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 12363 struct nlattr *nl_vendor_reply, *nl; 12364 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 12365 struct wpabuf *buf = arg; 12366 int rem; 12367 12368 if (!buf) 12369 return NL_SKIP; 12370 12371 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 12372 genlmsg_attrlen(gnlh, 0), NULL); 12373 nl_vendor_reply = tb[NL80211_ATTR_VENDOR_DATA]; 12374 12375 if (!nl_vendor_reply) 12376 return NL_SKIP; 12377 12378 if ((size_t) nla_len(nl_vendor_reply) > wpabuf_tailroom(buf)) { 12379 wpa_printf(MSG_INFO, "nl80211: Vendor command: insufficient buffer space for reply"); 12380 return NL_SKIP; 12381 } 12382 12383 nla_for_each_nested(nl, nl_vendor_reply, rem) { 12384 wpabuf_put_data(buf, nla_data(nl), nla_len(nl)); 12385 } 12386 12387 return NL_SKIP; 12388 } 12389 12390 12391 static int nl80211_vendor_cmd(void *priv, unsigned int vendor_id, 12392 unsigned int subcmd, const u8 *data, 12393 size_t data_len, struct wpabuf *buf) 12394 { 12395 struct i802_bss *bss = priv; 12396 struct wpa_driver_nl80211_data *drv = bss->drv; 12397 struct nl_msg *msg; 12398 int ret; 12399 12400 msg = nlmsg_alloc(); 12401 if (!msg) 12402 return -ENOMEM; 12403 12404 #ifdef CONFIG_TESTING_OPTIONS 12405 if (vendor_id == 0xffffffff) { 12406 nl80211_cmd(drv, msg, 0, subcmd); 12407 if (nlmsg_append(msg, (void *) data, data_len, NLMSG_ALIGNTO) < 12408 0) 12409 goto nla_put_failure; 12410 ret = send_and_recv_msgs(drv, msg, cmd_reply_handler, buf); 12411 if (ret) 12412 wpa_printf(MSG_DEBUG, "nl80211: command failed err=%d", 12413 ret); 12414 return ret; 12415 } 12416 #endif /* CONFIG_TESTING_OPTIONS */ 12417 12418 nl80211_cmd(drv, msg, 0, NL80211_CMD_VENDOR); 12419 if (nl80211_set_iface_id(msg, bss) < 0) 12420 goto nla_put_failure; 12421 NLA_PUT_U32(msg, NL80211_ATTR_VENDOR_ID, vendor_id); 12422 NLA_PUT_U32(msg, NL80211_ATTR_VENDOR_SUBCMD, subcmd); 12423 if (data) 12424 NLA_PUT(msg, NL80211_ATTR_VENDOR_DATA, data_len, data); 12425 12426 ret = send_and_recv_msgs(drv, msg, vendor_reply_handler, buf); 12427 if (ret) 12428 wpa_printf(MSG_DEBUG, "nl80211: vendor command failed err=%d", 12429 ret); 12430 return ret; 12431 12432 nla_put_failure: 12433 nlmsg_free(msg); 12434 return -ENOBUFS; 12435 } 12436 12437 12438 static int nl80211_set_qos_map(void *priv, const u8 *qos_map_set, 12439 u8 qos_map_set_len) 12440 { 12441 struct i802_bss *bss = priv; 12442 struct wpa_driver_nl80211_data *drv = bss->drv; 12443 struct nl_msg *msg; 12444 int ret; 12445 12446 msg = nlmsg_alloc(); 12447 if (!msg) 12448 return -ENOMEM; 12449 12450 wpa_hexdump(MSG_DEBUG, "nl80211: Setting QoS Map", 12451 qos_map_set, qos_map_set_len); 12452 12453 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_QOS_MAP); 12454 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 12455 NLA_PUT(msg, NL80211_ATTR_QOS_MAP, qos_map_set_len, qos_map_set); 12456 12457 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 12458 if (ret) 12459 wpa_printf(MSG_DEBUG, "nl80211: Setting QoS Map failed"); 12460 12461 return ret; 12462 12463 nla_put_failure: 12464 nlmsg_free(msg); 12465 return -ENOBUFS; 12466 } 12467 12468 12469 static int nl80211_set_wowlan(void *priv, 12470 const struct wowlan_triggers *triggers) 12471 { 12472 struct i802_bss *bss = priv; 12473 struct wpa_driver_nl80211_data *drv = bss->drv; 12474 struct nl_msg *msg; 12475 struct nlattr *wowlan_triggers; 12476 int ret; 12477 12478 msg = nlmsg_alloc(); 12479 if (!msg) 12480 return -ENOMEM; 12481 12482 wpa_printf(MSG_DEBUG, "nl80211: Setting wowlan"); 12483 12484 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WOWLAN); 12485 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 12486 12487 wowlan_triggers = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS); 12488 if (!wowlan_triggers) 12489 goto nla_put_failure; 12490 12491 if (triggers->any) 12492 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY); 12493 if (triggers->disconnect) 12494 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT); 12495 if (triggers->magic_pkt) 12496 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT); 12497 if (triggers->gtk_rekey_failure) 12498 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE); 12499 if (triggers->eap_identity_req) 12500 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST); 12501 if (triggers->four_way_handshake) 12502 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE); 12503 if (triggers->rfkill_release) 12504 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE); 12505 12506 nla_nest_end(msg, wowlan_triggers); 12507 12508 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 12509 if (ret) 12510 wpa_printf(MSG_DEBUG, "nl80211: Setting wowlan failed"); 12511 12512 return ret; 12513 12514 nla_put_failure: 12515 nlmsg_free(msg); 12516 return -ENOBUFS; 12517 } 12518 12519 12520 static int nl80211_roaming(void *priv, int allowed, const u8 *bssid) 12521 { 12522 struct i802_bss *bss = priv; 12523 struct wpa_driver_nl80211_data *drv = bss->drv; 12524 struct nl_msg *msg; 12525 struct nlattr *params; 12526 12527 wpa_printf(MSG_DEBUG, "nl80211: Roaming policy: allowed=%d", allowed); 12528 12529 if (!drv->roaming_vendor_cmd_avail) { 12530 wpa_printf(MSG_DEBUG, 12531 "nl80211: Ignore roaming policy change since driver does not provide command for setting it"); 12532 return -1; 12533 } 12534 12535 msg = nlmsg_alloc(); 12536 if (!msg) 12537 return -ENOMEM; 12538 12539 nl80211_cmd(drv, msg, 0, NL80211_CMD_VENDOR); 12540 12541 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 12542 NLA_PUT_U32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA); 12543 NLA_PUT_U32(msg, NL80211_ATTR_VENDOR_SUBCMD, 12544 QCA_NL80211_VENDOR_SUBCMD_ROAMING); 12545 12546 params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA); 12547 if (!params) 12548 goto nla_put_failure; 12549 NLA_PUT_U32(msg, QCA_WLAN_VENDOR_ATTR_ROAMING_POLICY, 12550 allowed ? QCA_ROAMING_ALLOWED_WITHIN_ESS : 12551 QCA_ROAMING_NOT_ALLOWED); 12552 if (bssid) 12553 NLA_PUT(msg, QCA_WLAN_VENDOR_ATTR_MAC_ADDR, ETH_ALEN, bssid); 12554 nla_nest_end(msg, params); 12555 12556 return send_and_recv_msgs(drv, msg, NULL, NULL); 12557 12558 nla_put_failure: 12559 nlmsg_free(msg); 12560 return -1; 12561 } 12562 12563 12564 static int nl80211_set_mac_addr(void *priv, const u8 *addr) 12565 { 12566 struct i802_bss *bss = priv; 12567 struct wpa_driver_nl80211_data *drv = bss->drv; 12568 int new_addr = addr != NULL; 12569 12570 if (!addr) 12571 addr = drv->perm_addr; 12572 12573 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0) < 0) 12574 return -1; 12575 12576 if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, addr) < 0) 12577 { 12578 wpa_printf(MSG_DEBUG, 12579 "nl80211: failed to set_mac_addr for %s to " MACSTR, 12580 bss->ifname, MAC2STR(addr)); 12581 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 12582 1) < 0) { 12583 wpa_printf(MSG_DEBUG, 12584 "nl80211: Could not restore interface UP after failed set_mac_addr"); 12585 } 12586 return -1; 12587 } 12588 12589 wpa_printf(MSG_DEBUG, "nl80211: set_mac_addr for %s to " MACSTR, 12590 bss->ifname, MAC2STR(addr)); 12591 drv->addr_changed = new_addr; 12592 os_memcpy(bss->addr, addr, ETH_ALEN); 12593 12594 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1) < 0) 12595 { 12596 wpa_printf(MSG_DEBUG, 12597 "nl80211: Could not restore interface UP after set_mac_addr"); 12598 } 12599 12600 return 0; 12601 } 12602 12603 12604 const struct wpa_driver_ops wpa_driver_nl80211_ops = { 12605 .name = "nl80211", 12606 .desc = "Linux nl80211/cfg80211", 12607 .get_bssid = wpa_driver_nl80211_get_bssid, 12608 .get_ssid = wpa_driver_nl80211_get_ssid, 12609 .set_key = driver_nl80211_set_key, 12610 .scan2 = driver_nl80211_scan2, 12611 .sched_scan = wpa_driver_nl80211_sched_scan, 12612 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan, 12613 .get_scan_results2 = wpa_driver_nl80211_get_scan_results, 12614 .deauthenticate = driver_nl80211_deauthenticate, 12615 .authenticate = driver_nl80211_authenticate, 12616 .associate = wpa_driver_nl80211_associate, 12617 .global_init = nl80211_global_init, 12618 .global_deinit = nl80211_global_deinit, 12619 .init2 = wpa_driver_nl80211_init, 12620 .deinit = driver_nl80211_deinit, 12621 .get_capa = wpa_driver_nl80211_get_capa, 12622 .set_operstate = wpa_driver_nl80211_set_operstate, 12623 .set_supp_port = wpa_driver_nl80211_set_supp_port, 12624 .set_country = wpa_driver_nl80211_set_country, 12625 .get_country = wpa_driver_nl80211_get_country, 12626 .set_ap = wpa_driver_nl80211_set_ap, 12627 .set_acl = wpa_driver_nl80211_set_acl, 12628 .if_add = wpa_driver_nl80211_if_add, 12629 .if_remove = driver_nl80211_if_remove, 12630 .send_mlme = driver_nl80211_send_mlme, 12631 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data, 12632 .sta_add = wpa_driver_nl80211_sta_add, 12633 .sta_remove = driver_nl80211_sta_remove, 12634 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol, 12635 .sta_set_flags = wpa_driver_nl80211_sta_set_flags, 12636 .hapd_init = i802_init, 12637 .hapd_deinit = i802_deinit, 12638 .set_wds_sta = i802_set_wds_sta, 12639 .get_seqnum = i802_get_seqnum, 12640 .flush = i802_flush, 12641 .get_inact_sec = i802_get_inact_sec, 12642 .sta_clear_stats = i802_sta_clear_stats, 12643 .set_rts = i802_set_rts, 12644 .set_frag = i802_set_frag, 12645 .set_tx_queue_params = i802_set_tx_queue_params, 12646 .set_sta_vlan = driver_nl80211_set_sta_vlan, 12647 .sta_deauth = i802_sta_deauth, 12648 .sta_disassoc = i802_sta_disassoc, 12649 .read_sta_data = driver_nl80211_read_sta_data, 12650 .set_freq = i802_set_freq, 12651 .send_action = driver_nl80211_send_action, 12652 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait, 12653 .remain_on_channel = wpa_driver_nl80211_remain_on_channel, 12654 .cancel_remain_on_channel = 12655 wpa_driver_nl80211_cancel_remain_on_channel, 12656 .probe_req_report = driver_nl80211_probe_req_report, 12657 .deinit_ap = wpa_driver_nl80211_deinit_ap, 12658 .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli, 12659 .resume = wpa_driver_nl80211_resume, 12660 .send_ft_action = nl80211_send_ft_action, 12661 .signal_monitor = nl80211_signal_monitor, 12662 .signal_poll = nl80211_signal_poll, 12663 .send_frame = nl80211_send_frame, 12664 .shared_freq = wpa_driver_nl80211_shared_freq, 12665 .set_param = nl80211_set_param, 12666 .get_radio_name = nl80211_get_radio_name, 12667 .add_pmkid = nl80211_add_pmkid, 12668 .remove_pmkid = nl80211_remove_pmkid, 12669 .flush_pmkid = nl80211_flush_pmkid, 12670 .set_rekey_info = nl80211_set_rekey_info, 12671 .poll_client = nl80211_poll_client, 12672 .set_p2p_powersave = nl80211_set_p2p_powersave, 12673 .start_dfs_cac = nl80211_start_radar_detection, 12674 .stop_ap = wpa_driver_nl80211_stop_ap, 12675 #ifdef CONFIG_TDLS 12676 .send_tdls_mgmt = nl80211_send_tdls_mgmt, 12677 .tdls_oper = nl80211_tdls_oper, 12678 #endif /* CONFIG_TDLS */ 12679 .update_ft_ies = wpa_driver_nl80211_update_ft_ies, 12680 .get_mac_addr = wpa_driver_nl80211_get_macaddr, 12681 .get_survey = wpa_driver_nl80211_get_survey, 12682 .status = wpa_driver_nl80211_status, 12683 .switch_channel = nl80211_switch_channel, 12684 #ifdef ANDROID_P2P 12685 .set_noa = wpa_driver_set_p2p_noa, 12686 .get_noa = wpa_driver_get_p2p_noa, 12687 .set_ap_wps_ie = wpa_driver_set_ap_wps_p2p_ie, 12688 #endif /* ANDROID_P2P */ 12689 #ifdef ANDROID 12690 .driver_cmd = wpa_driver_nl80211_driver_cmd, 12691 #endif /* ANDROID */ 12692 .vendor_cmd = nl80211_vendor_cmd, 12693 .set_qos_map = nl80211_set_qos_map, 12694 .set_wowlan = nl80211_set_wowlan, 12695 .roaming = nl80211_roaming, 12696 .set_mac_addr = nl80211_set_mac_addr, 12697 }; 12698
