driver_nl80211.c revision cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50e
1/* 2 * Driver interaction with Linux nl80211/cfg80211 3 * Copyright (c) 2002-2014, Jouni Malinen <j@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@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#include <linux/rtnetlink.h> 23#include <netpacket/packet.h> 24#include <linux/filter.h> 25#include <linux/errqueue.h> 26#include "nl80211_copy.h" 27 28#include "common.h" 29#include "eloop.h" 30#include "utils/list.h" 31#include "common/qca-vendor.h" 32#include "common/ieee802_11_defs.h" 33#include "common/ieee802_11_common.h" 34#include "l2_packet/l2_packet.h" 35#include "netlink.h" 36#include "linux_ioctl.h" 37#include "radiotap.h" 38#include "radiotap_iter.h" 39#include "rfkill.h" 40#include "driver.h" 41 42#ifndef SO_WIFI_STATUS 43# if defined(__sparc__) 44# define SO_WIFI_STATUS 0x0025 45# elif defined(__parisc__) 46# define SO_WIFI_STATUS 0x4022 47# else 48# define SO_WIFI_STATUS 41 49# endif 50 51# define SCM_WIFI_STATUS SO_WIFI_STATUS 52#endif 53 54#ifndef SO_EE_ORIGIN_TXSTATUS 55#define SO_EE_ORIGIN_TXSTATUS 4 56#endif 57 58#ifndef PACKET_TX_TIMESTAMP 59#define PACKET_TX_TIMESTAMP 16 60#endif 61 62#ifdef ANDROID 63#include "android_drv.h" 64#endif /* ANDROID */ 65#ifdef CONFIG_LIBNL20 66/* libnl 2.0 compatibility code */ 67#define nl_handle nl_sock 68#define nl80211_handle_alloc nl_socket_alloc_cb 69#define nl80211_handle_destroy nl_socket_free 70#else 71/* 72 * libnl 1.1 has a bug, it tries to allocate socket numbers densely 73 * but when you free a socket again it will mess up its bitmap and 74 * and use the wrong number the next time it needs a socket ID. 75 * Therefore, we wrap the handle alloc/destroy and add our own pid 76 * accounting. 77 */ 78static uint32_t port_bitmap[32] = { 0 }; 79 80static struct nl_handle *nl80211_handle_alloc(void *cb) 81{ 82 struct nl_handle *handle; 83 uint32_t pid = getpid() & 0x3FFFFF; 84 int i; 85 86 handle = nl_handle_alloc_cb(cb); 87 88 for (i = 0; i < 1024; i++) { 89 if (port_bitmap[i / 32] & (1 << (i % 32))) 90 continue; 91 port_bitmap[i / 32] |= 1 << (i % 32); 92 pid += i << 22; 93 break; 94 } 95 96 nl_socket_set_local_port(handle, pid); 97 98 return handle; 99} 100 101static void nl80211_handle_destroy(struct nl_handle *handle) 102{ 103 uint32_t port = nl_socket_get_local_port(handle); 104 105 port >>= 22; 106 port_bitmap[port / 32] &= ~(1 << (port % 32)); 107 108 nl_handle_destroy(handle); 109} 110#endif /* CONFIG_LIBNL20 */ 111 112 113#ifdef ANDROID 114/* system/core/libnl_2 does not include nl_socket_set_nonblocking() */ 115static int android_nl_socket_set_nonblocking(struct nl_handle *handle) 116{ 117 return fcntl(nl_socket_get_fd(handle), F_SETFL, O_NONBLOCK); 118} 119#undef nl_socket_set_nonblocking 120#define nl_socket_set_nonblocking(h) android_nl_socket_set_nonblocking(h) 121#endif /* ANDROID */ 122 123 124static struct nl_handle * nl_create_handle(struct nl_cb *cb, const char *dbg) 125{ 126 struct nl_handle *handle; 127 128 handle = nl80211_handle_alloc(cb); 129 if (handle == NULL) { 130 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " 131 "callbacks (%s)", dbg); 132 return NULL; 133 } 134 135 if (genl_connect(handle)) { 136 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic " 137 "netlink (%s)", dbg); 138 nl80211_handle_destroy(handle); 139 return NULL; 140 } 141 142 return handle; 143} 144 145 146static void nl_destroy_handles(struct nl_handle **handle) 147{ 148 if (*handle == NULL) 149 return; 150 nl80211_handle_destroy(*handle); 151 *handle = NULL; 152} 153 154 155#if __WORDSIZE == 64 156#define ELOOP_SOCKET_INVALID (intptr_t) 0x8888888888888889ULL 157#else 158#define ELOOP_SOCKET_INVALID (intptr_t) 0x88888889ULL 159#endif 160 161static void nl80211_register_eloop_read(struct nl_handle **handle, 162 eloop_sock_handler handler, 163 void *eloop_data) 164{ 165 nl_socket_set_nonblocking(*handle); 166 eloop_register_read_sock(nl_socket_get_fd(*handle), handler, 167 eloop_data, *handle); 168 *handle = (void *) (((intptr_t) *handle) ^ ELOOP_SOCKET_INVALID); 169} 170 171 172static void nl80211_destroy_eloop_handle(struct nl_handle **handle) 173{ 174 *handle = (void *) (((intptr_t) *handle) ^ ELOOP_SOCKET_INVALID); 175 eloop_unregister_read_sock(nl_socket_get_fd(*handle)); 176 nl_destroy_handles(handle); 177} 178 179 180#ifndef IFF_LOWER_UP 181#define IFF_LOWER_UP 0x10000 /* driver signals L1 up */ 182#endif 183#ifndef IFF_DORMANT 184#define IFF_DORMANT 0x20000 /* driver signals dormant */ 185#endif 186 187#ifndef IF_OPER_DORMANT 188#define IF_OPER_DORMANT 5 189#endif 190#ifndef IF_OPER_UP 191#define IF_OPER_UP 6 192#endif 193 194struct nl80211_global { 195 struct dl_list interfaces; 196 int if_add_ifindex; 197 u64 if_add_wdevid; 198 int if_add_wdevid_set; 199 struct netlink_data *netlink; 200 struct nl_cb *nl_cb; 201 struct nl_handle *nl; 202 int nl80211_id; 203 int ioctl_sock; /* socket for ioctl() use */ 204 205 struct nl_handle *nl_event; 206}; 207 208struct nl80211_wiphy_data { 209 struct dl_list list; 210 struct dl_list bsss; 211 struct dl_list drvs; 212 213 struct nl_handle *nl_beacons; 214 struct nl_cb *nl_cb; 215 216 int wiphy_idx; 217}; 218 219static void nl80211_global_deinit(void *priv); 220 221struct i802_bss { 222 struct wpa_driver_nl80211_data *drv; 223 struct i802_bss *next; 224 int ifindex; 225 u64 wdev_id; 226 char ifname[IFNAMSIZ + 1]; 227 char brname[IFNAMSIZ]; 228 unsigned int beacon_set:1; 229 unsigned int added_if_into_bridge:1; 230 unsigned int added_bridge:1; 231 unsigned int in_deinit:1; 232 unsigned int wdev_id_set:1; 233 unsigned int added_if:1; 234 235 u8 addr[ETH_ALEN]; 236 237 int freq; 238 int if_dynamic; 239 240 void *ctx; 241 struct nl_handle *nl_preq, *nl_mgmt; 242 struct nl_cb *nl_cb; 243 244 struct nl80211_wiphy_data *wiphy_data; 245 struct dl_list wiphy_list; 246}; 247 248struct wpa_driver_nl80211_data { 249 struct nl80211_global *global; 250 struct dl_list list; 251 struct dl_list wiphy_list; 252 char phyname[32]; 253 void *ctx; 254 int ifindex; 255 int if_removed; 256 int if_disabled; 257 int ignore_if_down_event; 258 struct rfkill_data *rfkill; 259 struct wpa_driver_capa capa; 260 u8 *extended_capa, *extended_capa_mask; 261 unsigned int extended_capa_len; 262 int has_capability; 263 264 int operstate; 265 266 int scan_complete_events; 267 enum scan_states { 268 NO_SCAN, SCAN_REQUESTED, SCAN_STARTED, SCAN_COMPLETED, 269 SCAN_ABORTED, SCHED_SCAN_STARTED, SCHED_SCAN_STOPPED, 270 SCHED_SCAN_RESULTS 271 } scan_state; 272 273 struct nl_cb *nl_cb; 274 275 u8 auth_bssid[ETH_ALEN]; 276 u8 auth_attempt_bssid[ETH_ALEN]; 277 u8 bssid[ETH_ALEN]; 278 u8 prev_bssid[ETH_ALEN]; 279 int associated; 280 u8 ssid[32]; 281 size_t ssid_len; 282 enum nl80211_iftype nlmode; 283 enum nl80211_iftype ap_scan_as_station; 284 unsigned int assoc_freq; 285 286 int monitor_sock; 287 int monitor_ifidx; 288 int monitor_refcount; 289 290 unsigned int disabled_11b_rates:1; 291 unsigned int pending_remain_on_chan:1; 292 unsigned int in_interface_list:1; 293 unsigned int device_ap_sme:1; 294 unsigned int poll_command_supported:1; 295 unsigned int data_tx_status:1; 296 unsigned int scan_for_auth:1; 297 unsigned int retry_auth:1; 298 unsigned int use_monitor:1; 299 unsigned int ignore_next_local_disconnect:1; 300 unsigned int allow_p2p_device:1; 301 unsigned int hostapd:1; 302 unsigned int start_mode_ap:1; 303 unsigned int start_iface_up:1; 304 305 u64 remain_on_chan_cookie; 306 u64 send_action_cookie; 307 308 unsigned int last_mgmt_freq; 309 310 struct wpa_driver_scan_filter *filter_ssids; 311 size_t num_filter_ssids; 312 313 struct i802_bss *first_bss; 314 315 int eapol_tx_sock; 316 317 int eapol_sock; /* socket for EAPOL frames */ 318 319 int default_if_indices[16]; 320 int *if_indices; 321 int num_if_indices; 322 323 /* From failed authentication command */ 324 int auth_freq; 325 u8 auth_bssid_[ETH_ALEN]; 326 u8 auth_ssid[32]; 327 size_t auth_ssid_len; 328 int auth_alg; 329 u8 *auth_ie; 330 size_t auth_ie_len; 331 u8 auth_wep_key[4][16]; 332 size_t auth_wep_key_len[4]; 333 int auth_wep_tx_keyidx; 334 int auth_local_state_change; 335 int auth_p2p; 336}; 337 338 339static void wpa_driver_nl80211_deinit(struct i802_bss *bss); 340static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, 341 void *timeout_ctx); 342static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 343 enum nl80211_iftype nlmode); 344static int 345wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv, 346 const u8 *set_addr, int first); 347static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 348 const u8 *addr, int cmd, u16 reason_code, 349 int local_state_change); 350static void nl80211_remove_monitor_interface( 351 struct wpa_driver_nl80211_data *drv); 352static int nl80211_send_frame_cmd(struct i802_bss *bss, 353 unsigned int freq, unsigned int wait, 354 const u8 *buf, size_t buf_len, u64 *cookie, 355 int no_cck, int no_ack, int offchanok); 356static int nl80211_register_frame(struct i802_bss *bss, 357 struct nl_handle *hl_handle, 358 u16 type, const u8 *match, size_t match_len); 359static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, 360 int report); 361#ifdef ANDROID 362static int android_pno_start(struct i802_bss *bss, 363 struct wpa_driver_scan_params *params); 364static int android_pno_stop(struct i802_bss *bss); 365extern int wpa_driver_nl80211_driver_cmd(void *priv, char *cmd, char *buf, 366 size_t buf_len); 367#endif /* ANDROID */ 368#ifdef ANDROID_P2P 369int wpa_driver_set_p2p_noa(void *priv, u8 count, int start, int duration); 370int wpa_driver_get_p2p_noa(void *priv, u8 *buf, size_t len); 371int wpa_driver_set_p2p_ps(void *priv, int legacy_ps, int opp_ps, int ctwindow); 372int wpa_driver_set_ap_wps_p2p_ie(void *priv, const struct wpabuf *beacon, 373 const struct wpabuf *proberesp, 374 const struct wpabuf *assocresp); 375#endif /* ANDROID_P2P */ 376 377static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 378static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 379static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 380static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 381 enum wpa_driver_if_type type, 382 const char *ifname); 383 384static int wpa_driver_nl80211_set_freq(struct i802_bss *bss, 385 struct hostapd_freq_params *freq); 386static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 387 int ifindex, int disabled); 388 389static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv); 390static int wpa_driver_nl80211_authenticate_retry( 391 struct wpa_driver_nl80211_data *drv); 392 393static int i802_set_iface_flags(struct i802_bss *bss, int up); 394 395 396static const char * nl80211_command_to_string(enum nl80211_commands cmd) 397{ 398#define C2S(x) case x: return #x; 399 switch (cmd) { 400 C2S(NL80211_CMD_UNSPEC) 401 C2S(NL80211_CMD_GET_WIPHY) 402 C2S(NL80211_CMD_SET_WIPHY) 403 C2S(NL80211_CMD_NEW_WIPHY) 404 C2S(NL80211_CMD_DEL_WIPHY) 405 C2S(NL80211_CMD_GET_INTERFACE) 406 C2S(NL80211_CMD_SET_INTERFACE) 407 C2S(NL80211_CMD_NEW_INTERFACE) 408 C2S(NL80211_CMD_DEL_INTERFACE) 409 C2S(NL80211_CMD_GET_KEY) 410 C2S(NL80211_CMD_SET_KEY) 411 C2S(NL80211_CMD_NEW_KEY) 412 C2S(NL80211_CMD_DEL_KEY) 413 C2S(NL80211_CMD_GET_BEACON) 414 C2S(NL80211_CMD_SET_BEACON) 415 C2S(NL80211_CMD_START_AP) 416 C2S(NL80211_CMD_STOP_AP) 417 C2S(NL80211_CMD_GET_STATION) 418 C2S(NL80211_CMD_SET_STATION) 419 C2S(NL80211_CMD_NEW_STATION) 420 C2S(NL80211_CMD_DEL_STATION) 421 C2S(NL80211_CMD_GET_MPATH) 422 C2S(NL80211_CMD_SET_MPATH) 423 C2S(NL80211_CMD_NEW_MPATH) 424 C2S(NL80211_CMD_DEL_MPATH) 425 C2S(NL80211_CMD_SET_BSS) 426 C2S(NL80211_CMD_SET_REG) 427 C2S(NL80211_CMD_REQ_SET_REG) 428 C2S(NL80211_CMD_GET_MESH_CONFIG) 429 C2S(NL80211_CMD_SET_MESH_CONFIG) 430 C2S(NL80211_CMD_SET_MGMT_EXTRA_IE) 431 C2S(NL80211_CMD_GET_REG) 432 C2S(NL80211_CMD_GET_SCAN) 433 C2S(NL80211_CMD_TRIGGER_SCAN) 434 C2S(NL80211_CMD_NEW_SCAN_RESULTS) 435 C2S(NL80211_CMD_SCAN_ABORTED) 436 C2S(NL80211_CMD_REG_CHANGE) 437 C2S(NL80211_CMD_AUTHENTICATE) 438 C2S(NL80211_CMD_ASSOCIATE) 439 C2S(NL80211_CMD_DEAUTHENTICATE) 440 C2S(NL80211_CMD_DISASSOCIATE) 441 C2S(NL80211_CMD_MICHAEL_MIC_FAILURE) 442 C2S(NL80211_CMD_REG_BEACON_HINT) 443 C2S(NL80211_CMD_JOIN_IBSS) 444 C2S(NL80211_CMD_LEAVE_IBSS) 445 C2S(NL80211_CMD_TESTMODE) 446 C2S(NL80211_CMD_CONNECT) 447 C2S(NL80211_CMD_ROAM) 448 C2S(NL80211_CMD_DISCONNECT) 449 C2S(NL80211_CMD_SET_WIPHY_NETNS) 450 C2S(NL80211_CMD_GET_SURVEY) 451 C2S(NL80211_CMD_NEW_SURVEY_RESULTS) 452 C2S(NL80211_CMD_SET_PMKSA) 453 C2S(NL80211_CMD_DEL_PMKSA) 454 C2S(NL80211_CMD_FLUSH_PMKSA) 455 C2S(NL80211_CMD_REMAIN_ON_CHANNEL) 456 C2S(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL) 457 C2S(NL80211_CMD_SET_TX_BITRATE_MASK) 458 C2S(NL80211_CMD_REGISTER_FRAME) 459 C2S(NL80211_CMD_FRAME) 460 C2S(NL80211_CMD_FRAME_TX_STATUS) 461 C2S(NL80211_CMD_SET_POWER_SAVE) 462 C2S(NL80211_CMD_GET_POWER_SAVE) 463 C2S(NL80211_CMD_SET_CQM) 464 C2S(NL80211_CMD_NOTIFY_CQM) 465 C2S(NL80211_CMD_SET_CHANNEL) 466 C2S(NL80211_CMD_SET_WDS_PEER) 467 C2S(NL80211_CMD_FRAME_WAIT_CANCEL) 468 C2S(NL80211_CMD_JOIN_MESH) 469 C2S(NL80211_CMD_LEAVE_MESH) 470 C2S(NL80211_CMD_UNPROT_DEAUTHENTICATE) 471 C2S(NL80211_CMD_UNPROT_DISASSOCIATE) 472 C2S(NL80211_CMD_NEW_PEER_CANDIDATE) 473 C2S(NL80211_CMD_GET_WOWLAN) 474 C2S(NL80211_CMD_SET_WOWLAN) 475 C2S(NL80211_CMD_START_SCHED_SCAN) 476 C2S(NL80211_CMD_STOP_SCHED_SCAN) 477 C2S(NL80211_CMD_SCHED_SCAN_RESULTS) 478 C2S(NL80211_CMD_SCHED_SCAN_STOPPED) 479 C2S(NL80211_CMD_SET_REKEY_OFFLOAD) 480 C2S(NL80211_CMD_PMKSA_CANDIDATE) 481 C2S(NL80211_CMD_TDLS_OPER) 482 C2S(NL80211_CMD_TDLS_MGMT) 483 C2S(NL80211_CMD_UNEXPECTED_FRAME) 484 C2S(NL80211_CMD_PROBE_CLIENT) 485 C2S(NL80211_CMD_REGISTER_BEACONS) 486 C2S(NL80211_CMD_UNEXPECTED_4ADDR_FRAME) 487 C2S(NL80211_CMD_SET_NOACK_MAP) 488 C2S(NL80211_CMD_CH_SWITCH_NOTIFY) 489 C2S(NL80211_CMD_START_P2P_DEVICE) 490 C2S(NL80211_CMD_STOP_P2P_DEVICE) 491 C2S(NL80211_CMD_CONN_FAILED) 492 C2S(NL80211_CMD_SET_MCAST_RATE) 493 C2S(NL80211_CMD_SET_MAC_ACL) 494 C2S(NL80211_CMD_RADAR_DETECT) 495 C2S(NL80211_CMD_GET_PROTOCOL_FEATURES) 496 C2S(NL80211_CMD_UPDATE_FT_IES) 497 C2S(NL80211_CMD_FT_EVENT) 498 C2S(NL80211_CMD_CRIT_PROTOCOL_START) 499 C2S(NL80211_CMD_CRIT_PROTOCOL_STOP) 500 C2S(NL80211_CMD_GET_COALESCE) 501 C2S(NL80211_CMD_SET_COALESCE) 502 C2S(NL80211_CMD_CHANNEL_SWITCH) 503 C2S(NL80211_CMD_VENDOR) 504 C2S(NL80211_CMD_SET_QOS_MAP) 505 default: 506 return "NL80211_CMD_UNKNOWN"; 507 } 508#undef C2S 509} 510 511 512/* Converts nl80211_chan_width to a common format */ 513static enum chan_width convert2width(int width) 514{ 515 switch (width) { 516 case NL80211_CHAN_WIDTH_20_NOHT: 517 return CHAN_WIDTH_20_NOHT; 518 case NL80211_CHAN_WIDTH_20: 519 return CHAN_WIDTH_20; 520 case NL80211_CHAN_WIDTH_40: 521 return CHAN_WIDTH_40; 522 case NL80211_CHAN_WIDTH_80: 523 return CHAN_WIDTH_80; 524 case NL80211_CHAN_WIDTH_80P80: 525 return CHAN_WIDTH_80P80; 526 case NL80211_CHAN_WIDTH_160: 527 return CHAN_WIDTH_160; 528 } 529 return CHAN_WIDTH_UNKNOWN; 530} 531 532 533static int is_ap_interface(enum nl80211_iftype nlmode) 534{ 535 return (nlmode == NL80211_IFTYPE_AP || 536 nlmode == NL80211_IFTYPE_P2P_GO); 537} 538 539 540static int is_sta_interface(enum nl80211_iftype nlmode) 541{ 542 return (nlmode == NL80211_IFTYPE_STATION || 543 nlmode == NL80211_IFTYPE_P2P_CLIENT); 544} 545 546 547static int is_p2p_net_interface(enum nl80211_iftype nlmode) 548{ 549 return (nlmode == NL80211_IFTYPE_P2P_CLIENT || 550 nlmode == NL80211_IFTYPE_P2P_GO); 551} 552 553 554static void nl80211_mark_disconnected(struct wpa_driver_nl80211_data *drv) 555{ 556 if (drv->associated) 557 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); 558 drv->associated = 0; 559 os_memset(drv->bssid, 0, ETH_ALEN); 560} 561 562 563struct nl80211_bss_info_arg { 564 struct wpa_driver_nl80211_data *drv; 565 struct wpa_scan_results *res; 566 unsigned int assoc_freq; 567 u8 assoc_bssid[ETH_ALEN]; 568}; 569 570static int bss_info_handler(struct nl_msg *msg, void *arg); 571 572 573/* nl80211 code */ 574static int ack_handler(struct nl_msg *msg, void *arg) 575{ 576 int *err = arg; 577 *err = 0; 578 return NL_STOP; 579} 580 581static int finish_handler(struct nl_msg *msg, void *arg) 582{ 583 int *ret = arg; 584 *ret = 0; 585 return NL_SKIP; 586} 587 588static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err, 589 void *arg) 590{ 591 int *ret = arg; 592 *ret = err->error; 593 return NL_SKIP; 594} 595 596 597static int no_seq_check(struct nl_msg *msg, void *arg) 598{ 599 return NL_OK; 600} 601 602 603static int send_and_recv(struct nl80211_global *global, 604 struct nl_handle *nl_handle, struct nl_msg *msg, 605 int (*valid_handler)(struct nl_msg *, void *), 606 void *valid_data) 607{ 608 struct nl_cb *cb; 609 int err = -ENOMEM; 610 611 cb = nl_cb_clone(global->nl_cb); 612 if (!cb) 613 goto out; 614 615 err = nl_send_auto_complete(nl_handle, msg); 616 if (err < 0) 617 goto out; 618 619 err = 1; 620 621 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err); 622 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err); 623 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err); 624 625 if (valid_handler) 626 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, 627 valid_handler, valid_data); 628 629 while (err > 0) { 630 int res = nl_recvmsgs(nl_handle, cb); 631 if (res) { 632 wpa_printf(MSG_INFO, 633 "nl80211: %s->nl_recvmsgs failed: %d", 634 __func__, res); 635 } 636 } 637 out: 638 nl_cb_put(cb); 639 nlmsg_free(msg); 640 return err; 641} 642 643 644static int send_and_recv_msgs_global(struct nl80211_global *global, 645 struct nl_msg *msg, 646 int (*valid_handler)(struct nl_msg *, void *), 647 void *valid_data) 648{ 649 return send_and_recv(global, global->nl, msg, valid_handler, 650 valid_data); 651} 652 653 654static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv, 655 struct nl_msg *msg, 656 int (*valid_handler)(struct nl_msg *, void *), 657 void *valid_data) 658{ 659 return send_and_recv(drv->global, drv->global->nl, msg, 660 valid_handler, valid_data); 661} 662 663 664struct family_data { 665 const char *group; 666 int id; 667}; 668 669 670static int nl80211_set_iface_id(struct nl_msg *msg, struct i802_bss *bss) 671{ 672 if (bss->wdev_id_set) 673 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 674 else 675 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 676 return 0; 677 678nla_put_failure: 679 return -1; 680} 681 682 683static int family_handler(struct nl_msg *msg, void *arg) 684{ 685 struct family_data *res = arg; 686 struct nlattr *tb[CTRL_ATTR_MAX + 1]; 687 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 688 struct nlattr *mcgrp; 689 int i; 690 691 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 692 genlmsg_attrlen(gnlh, 0), NULL); 693 if (!tb[CTRL_ATTR_MCAST_GROUPS]) 694 return NL_SKIP; 695 696 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) { 697 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1]; 698 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp), 699 nla_len(mcgrp), NULL); 700 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] || 701 !tb2[CTRL_ATTR_MCAST_GRP_ID] || 702 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]), 703 res->group, 704 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0) 705 continue; 706 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]); 707 break; 708 }; 709 710 return NL_SKIP; 711} 712 713 714static int nl_get_multicast_id(struct nl80211_global *global, 715 const char *family, const char *group) 716{ 717 struct nl_msg *msg; 718 int ret = -1; 719 struct family_data res = { group, -ENOENT }; 720 721 msg = nlmsg_alloc(); 722 if (!msg) 723 return -ENOMEM; 724 genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"), 725 0, 0, CTRL_CMD_GETFAMILY, 0); 726 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family); 727 728 ret = send_and_recv_msgs_global(global, msg, family_handler, &res); 729 msg = NULL; 730 if (ret == 0) 731 ret = res.id; 732 733nla_put_failure: 734 nlmsg_free(msg); 735 return ret; 736} 737 738 739static void * nl80211_cmd(struct wpa_driver_nl80211_data *drv, 740 struct nl_msg *msg, int flags, uint8_t cmd) 741{ 742 return genlmsg_put(msg, 0, 0, drv->global->nl80211_id, 743 0, flags, cmd, 0); 744} 745 746 747struct wiphy_idx_data { 748 int wiphy_idx; 749 enum nl80211_iftype nlmode; 750 u8 *macaddr; 751}; 752 753 754static int netdev_info_handler(struct nl_msg *msg, void *arg) 755{ 756 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 757 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 758 struct wiphy_idx_data *info = arg; 759 760 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 761 genlmsg_attrlen(gnlh, 0), NULL); 762 763 if (tb[NL80211_ATTR_WIPHY]) 764 info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]); 765 766 if (tb[NL80211_ATTR_IFTYPE]) 767 info->nlmode = nla_get_u32(tb[NL80211_ATTR_IFTYPE]); 768 769 if (tb[NL80211_ATTR_MAC] && info->macaddr) 770 os_memcpy(info->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 771 ETH_ALEN); 772 773 return NL_SKIP; 774} 775 776 777static int nl80211_get_wiphy_index(struct i802_bss *bss) 778{ 779 struct nl_msg *msg; 780 struct wiphy_idx_data data = { 781 .wiphy_idx = -1, 782 .macaddr = NULL, 783 }; 784 785 msg = nlmsg_alloc(); 786 if (!msg) 787 return NL80211_IFTYPE_UNSPECIFIED; 788 789 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 790 791 if (nl80211_set_iface_id(msg, bss) < 0) 792 goto nla_put_failure; 793 794 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) 795 return data.wiphy_idx; 796 msg = NULL; 797nla_put_failure: 798 nlmsg_free(msg); 799 return -1; 800} 801 802 803static enum nl80211_iftype nl80211_get_ifmode(struct i802_bss *bss) 804{ 805 struct nl_msg *msg; 806 struct wiphy_idx_data data = { 807 .nlmode = NL80211_IFTYPE_UNSPECIFIED, 808 .macaddr = NULL, 809 }; 810 811 msg = nlmsg_alloc(); 812 if (!msg) 813 return -1; 814 815 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 816 817 if (nl80211_set_iface_id(msg, bss) < 0) 818 goto nla_put_failure; 819 820 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) 821 return data.nlmode; 822 msg = NULL; 823nla_put_failure: 824 nlmsg_free(msg); 825 return NL80211_IFTYPE_UNSPECIFIED; 826} 827 828 829static int nl80211_get_macaddr(struct i802_bss *bss) 830{ 831 struct nl_msg *msg; 832 struct wiphy_idx_data data = { 833 .macaddr = bss->addr, 834 }; 835 836 msg = nlmsg_alloc(); 837 if (!msg) 838 return NL80211_IFTYPE_UNSPECIFIED; 839 840 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 841 if (nl80211_set_iface_id(msg, bss) < 0) 842 goto nla_put_failure; 843 844 return send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data); 845 846nla_put_failure: 847 nlmsg_free(msg); 848 return NL80211_IFTYPE_UNSPECIFIED; 849} 850 851 852static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv, 853 struct nl80211_wiphy_data *w) 854{ 855 struct nl_msg *msg; 856 int ret = -1; 857 858 msg = nlmsg_alloc(); 859 if (!msg) 860 return -1; 861 862 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS); 863 864 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx); 865 866 ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL); 867 msg = NULL; 868 if (ret) { 869 wpa_printf(MSG_DEBUG, "nl80211: Register beacons command " 870 "failed: ret=%d (%s)", 871 ret, strerror(-ret)); 872 goto nla_put_failure; 873 } 874 ret = 0; 875nla_put_failure: 876 nlmsg_free(msg); 877 return ret; 878} 879 880 881static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle) 882{ 883 struct nl80211_wiphy_data *w = eloop_ctx; 884 int res; 885 886 wpa_printf(MSG_EXCESSIVE, "nl80211: Beacon event message available"); 887 888 res = nl_recvmsgs(handle, w->nl_cb); 889 if (res) { 890 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d", 891 __func__, res); 892 } 893} 894 895 896static int process_beacon_event(struct nl_msg *msg, void *arg) 897{ 898 struct nl80211_wiphy_data *w = arg; 899 struct wpa_driver_nl80211_data *drv; 900 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 901 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 902 union wpa_event_data event; 903 904 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 905 genlmsg_attrlen(gnlh, 0), NULL); 906 907 if (gnlh->cmd != NL80211_CMD_FRAME) { 908 wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)", 909 gnlh->cmd); 910 return NL_SKIP; 911 } 912 913 if (!tb[NL80211_ATTR_FRAME]) 914 return NL_SKIP; 915 916 dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data, 917 wiphy_list) { 918 os_memset(&event, 0, sizeof(event)); 919 event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]); 920 event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]); 921 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 922 } 923 924 return NL_SKIP; 925} 926 927 928static struct nl80211_wiphy_data * 929nl80211_get_wiphy_data_ap(struct i802_bss *bss) 930{ 931 static DEFINE_DL_LIST(nl80211_wiphys); 932 struct nl80211_wiphy_data *w; 933 int wiphy_idx, found = 0; 934 struct i802_bss *tmp_bss; 935 936 if (bss->wiphy_data != NULL) 937 return bss->wiphy_data; 938 939 wiphy_idx = nl80211_get_wiphy_index(bss); 940 941 dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) { 942 if (w->wiphy_idx == wiphy_idx) 943 goto add; 944 } 945 946 /* alloc new one */ 947 w = os_zalloc(sizeof(*w)); 948 if (w == NULL) 949 return NULL; 950 w->wiphy_idx = wiphy_idx; 951 dl_list_init(&w->bsss); 952 dl_list_init(&w->drvs); 953 954 w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 955 if (!w->nl_cb) { 956 os_free(w); 957 return NULL; 958 } 959 nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL); 960 nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_beacon_event, 961 w); 962 963 w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb, 964 "wiphy beacons"); 965 if (w->nl_beacons == NULL) { 966 os_free(w); 967 return NULL; 968 } 969 970 if (nl80211_register_beacons(bss->drv, w)) { 971 nl_destroy_handles(&w->nl_beacons); 972 os_free(w); 973 return NULL; 974 } 975 976 nl80211_register_eloop_read(&w->nl_beacons, nl80211_recv_beacons, w); 977 978 dl_list_add(&nl80211_wiphys, &w->list); 979 980add: 981 /* drv entry for this bss already there? */ 982 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { 983 if (tmp_bss->drv == bss->drv) { 984 found = 1; 985 break; 986 } 987 } 988 /* if not add it */ 989 if (!found) 990 dl_list_add(&w->drvs, &bss->drv->wiphy_list); 991 992 dl_list_add(&w->bsss, &bss->wiphy_list); 993 bss->wiphy_data = w; 994 return w; 995} 996 997 998static void nl80211_put_wiphy_data_ap(struct i802_bss *bss) 999{ 1000 struct nl80211_wiphy_data *w = bss->wiphy_data; 1001 struct i802_bss *tmp_bss; 1002 int found = 0; 1003 1004 if (w == NULL) 1005 return; 1006 bss->wiphy_data = NULL; 1007 dl_list_del(&bss->wiphy_list); 1008 1009 /* still any for this drv present? */ 1010 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { 1011 if (tmp_bss->drv == bss->drv) { 1012 found = 1; 1013 break; 1014 } 1015 } 1016 /* if not remove it */ 1017 if (!found) 1018 dl_list_del(&bss->drv->wiphy_list); 1019 1020 if (!dl_list_empty(&w->bsss)) 1021 return; 1022 1023 nl80211_destroy_eloop_handle(&w->nl_beacons); 1024 1025 nl_cb_put(w->nl_cb); 1026 dl_list_del(&w->list); 1027 os_free(w); 1028} 1029 1030 1031static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid) 1032{ 1033 struct i802_bss *bss = priv; 1034 struct wpa_driver_nl80211_data *drv = bss->drv; 1035 if (!drv->associated) 1036 return -1; 1037 os_memcpy(bssid, drv->bssid, ETH_ALEN); 1038 return 0; 1039} 1040 1041 1042static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid) 1043{ 1044 struct i802_bss *bss = priv; 1045 struct wpa_driver_nl80211_data *drv = bss->drv; 1046 if (!drv->associated) 1047 return -1; 1048 os_memcpy(ssid, drv->ssid, drv->ssid_len); 1049 return drv->ssid_len; 1050} 1051 1052 1053static void wpa_driver_nl80211_event_newlink( 1054 struct wpa_driver_nl80211_data *drv, char *ifname) 1055{ 1056 union wpa_event_data event; 1057 1058 if (os_strcmp(drv->first_bss->ifname, ifname) == 0) { 1059 if (if_nametoindex(drv->first_bss->ifname) == 0) { 1060 wpa_printf(MSG_DEBUG, "nl80211: Interface %s does not exist - ignore RTM_NEWLINK", 1061 drv->first_bss->ifname); 1062 return; 1063 } 1064 if (!drv->if_removed) 1065 return; 1066 wpa_printf(MSG_DEBUG, "nl80211: Mark if_removed=0 for %s based on RTM_NEWLINK event", 1067 drv->first_bss->ifname); 1068 drv->if_removed = 0; 1069 } 1070 1071 os_memset(&event, 0, sizeof(event)); 1072 os_strlcpy(event.interface_status.ifname, ifname, 1073 sizeof(event.interface_status.ifname)); 1074 event.interface_status.ievent = EVENT_INTERFACE_ADDED; 1075 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); 1076} 1077 1078 1079static void wpa_driver_nl80211_event_dellink( 1080 struct wpa_driver_nl80211_data *drv, char *ifname) 1081{ 1082 union wpa_event_data event; 1083 1084 if (os_strcmp(drv->first_bss->ifname, ifname) == 0) { 1085 if (drv->if_removed) { 1086 wpa_printf(MSG_DEBUG, "nl80211: if_removed already set - ignore RTM_DELLINK event for %s", 1087 ifname); 1088 return; 1089 } 1090 wpa_printf(MSG_DEBUG, "RTM_DELLINK: Interface '%s' removed - mark if_removed=1", 1091 ifname); 1092 drv->if_removed = 1; 1093 } else { 1094 wpa_printf(MSG_DEBUG, "RTM_DELLINK: Interface '%s' removed", 1095 ifname); 1096 } 1097 1098 os_memset(&event, 0, sizeof(event)); 1099 os_strlcpy(event.interface_status.ifname, ifname, 1100 sizeof(event.interface_status.ifname)); 1101 event.interface_status.ievent = EVENT_INTERFACE_REMOVED; 1102 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); 1103} 1104 1105 1106static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv, 1107 u8 *buf, size_t len) 1108{ 1109 int attrlen, rta_len; 1110 struct rtattr *attr; 1111 1112 attrlen = len; 1113 attr = (struct rtattr *) buf; 1114 1115 rta_len = RTA_ALIGN(sizeof(struct rtattr)); 1116 while (RTA_OK(attr, attrlen)) { 1117 if (attr->rta_type == IFLA_IFNAME) { 1118 if (os_strcmp(((char *) attr) + rta_len, 1119 drv->first_bss->ifname) == 0) 1120 return 1; 1121 else 1122 break; 1123 } 1124 attr = RTA_NEXT(attr, attrlen); 1125 } 1126 1127 return 0; 1128} 1129 1130 1131static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv, 1132 int ifindex, u8 *buf, size_t len) 1133{ 1134 if (drv->ifindex == ifindex) 1135 return 1; 1136 1137 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) { 1138 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed " 1139 "interface"); 1140 wpa_driver_nl80211_finish_drv_init(drv, NULL, 0); 1141 return 1; 1142 } 1143 1144 return 0; 1145} 1146 1147 1148static struct wpa_driver_nl80211_data * 1149nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len) 1150{ 1151 struct wpa_driver_nl80211_data *drv; 1152 dl_list_for_each(drv, &global->interfaces, 1153 struct wpa_driver_nl80211_data, list) { 1154 if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) || 1155 have_ifidx(drv, idx)) 1156 return drv; 1157 } 1158 return NULL; 1159} 1160 1161 1162static void wpa_driver_nl80211_event_rtm_newlink(void *ctx, 1163 struct ifinfomsg *ifi, 1164 u8 *buf, size_t len) 1165{ 1166 struct nl80211_global *global = ctx; 1167 struct wpa_driver_nl80211_data *drv; 1168 int attrlen; 1169 struct rtattr *attr; 1170 u32 brid = 0; 1171 char namebuf[IFNAMSIZ]; 1172 char ifname[IFNAMSIZ + 1]; 1173 char extra[100], *pos, *end; 1174 1175 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); 1176 if (!drv) { 1177 wpa_printf(MSG_DEBUG, "nl80211: Ignore RTM_NEWLINK event for foreign ifindex %d", 1178 ifi->ifi_index); 1179 return; 1180 } 1181 1182 extra[0] = '\0'; 1183 pos = extra; 1184 end = pos + sizeof(extra); 1185 ifname[0] = '\0'; 1186 1187 attrlen = len; 1188 attr = (struct rtattr *) buf; 1189 while (RTA_OK(attr, attrlen)) { 1190 switch (attr->rta_type) { 1191 case IFLA_IFNAME: 1192 if (RTA_PAYLOAD(attr) >= IFNAMSIZ) 1193 break; 1194 os_memcpy(ifname, RTA_DATA(attr), RTA_PAYLOAD(attr)); 1195 ifname[RTA_PAYLOAD(attr)] = '\0'; 1196 break; 1197 case IFLA_MASTER: 1198 brid = nla_get_u32((struct nlattr *) attr); 1199 pos += os_snprintf(pos, end - pos, " master=%u", brid); 1200 break; 1201 case IFLA_WIRELESS: 1202 pos += os_snprintf(pos, end - pos, " wext"); 1203 break; 1204 case IFLA_OPERSTATE: 1205 pos += os_snprintf(pos, end - pos, " operstate=%u", 1206 nla_get_u32((struct nlattr *) attr)); 1207 break; 1208 case IFLA_LINKMODE: 1209 pos += os_snprintf(pos, end - pos, " linkmode=%u", 1210 nla_get_u32((struct nlattr *) attr)); 1211 break; 1212 } 1213 attr = RTA_NEXT(attr, attrlen); 1214 } 1215 extra[sizeof(extra) - 1] = '\0'; 1216 1217 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: ifi_index=%d ifname=%s%s ifi_flags=0x%x (%s%s%s%s)", 1218 ifi->ifi_index, ifname, extra, ifi->ifi_flags, 1219 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "", 1220 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "", 1221 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "", 1222 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : ""); 1223 1224 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) { 1225 if (if_indextoname(ifi->ifi_index, namebuf) && 1226 linux_iface_up(drv->global->ioctl_sock, 1227 drv->first_bss->ifname) > 0) { 1228 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " 1229 "event since interface %s is up", namebuf); 1230 return; 1231 } 1232 wpa_printf(MSG_DEBUG, "nl80211: Interface down"); 1233 if (drv->ignore_if_down_event) { 1234 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " 1235 "event generated by mode change"); 1236 drv->ignore_if_down_event = 0; 1237 } else { 1238 drv->if_disabled = 1; 1239 wpa_supplicant_event(drv->ctx, 1240 EVENT_INTERFACE_DISABLED, NULL); 1241 } 1242 } 1243 1244 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) { 1245 if (if_indextoname(ifi->ifi_index, namebuf) && 1246 linux_iface_up(drv->global->ioctl_sock, 1247 drv->first_bss->ifname) == 0) { 1248 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1249 "event since interface %s is down", 1250 namebuf); 1251 } else if (if_nametoindex(drv->first_bss->ifname) == 0) { 1252 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1253 "event since interface %s does not exist", 1254 drv->first_bss->ifname); 1255 } else if (drv->if_removed) { 1256 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1257 "event since interface %s is marked " 1258 "removed", drv->first_bss->ifname); 1259 } else { 1260 wpa_printf(MSG_DEBUG, "nl80211: Interface up"); 1261 drv->if_disabled = 0; 1262 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED, 1263 NULL); 1264 } 1265 } 1266 1267 /* 1268 * Some drivers send the association event before the operup event--in 1269 * this case, lifting operstate in wpa_driver_nl80211_set_operstate() 1270 * fails. This will hit us when wpa_supplicant does not need to do 1271 * IEEE 802.1X authentication 1272 */ 1273 if (drv->operstate == 1 && 1274 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP && 1275 !(ifi->ifi_flags & IFF_RUNNING)) { 1276 wpa_printf(MSG_DEBUG, "nl80211: Set IF_OPER_UP again based on ifi_flags and expected operstate"); 1277 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 1278 -1, IF_OPER_UP); 1279 } 1280 1281 if (ifname[0]) 1282 wpa_driver_nl80211_event_newlink(drv, ifname); 1283 1284 if (ifi->ifi_family == AF_BRIDGE && brid) { 1285 /* device has been added to bridge */ 1286 if_indextoname(brid, namebuf); 1287 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s", 1288 brid, namebuf); 1289 add_ifidx(drv, brid); 1290 } 1291} 1292 1293 1294static void wpa_driver_nl80211_event_rtm_dellink(void *ctx, 1295 struct ifinfomsg *ifi, 1296 u8 *buf, size_t len) 1297{ 1298 struct nl80211_global *global = ctx; 1299 struct wpa_driver_nl80211_data *drv; 1300 int attrlen; 1301 struct rtattr *attr; 1302 u32 brid = 0; 1303 char ifname[IFNAMSIZ + 1]; 1304 1305 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); 1306 if (!drv) { 1307 wpa_printf(MSG_DEBUG, "nl80211: Ignore RTM_DELLINK event for foreign ifindex %d", 1308 ifi->ifi_index); 1309 return; 1310 } 1311 1312 ifname[0] = '\0'; 1313 1314 attrlen = len; 1315 attr = (struct rtattr *) buf; 1316 while (RTA_OK(attr, attrlen)) { 1317 switch (attr->rta_type) { 1318 case IFLA_IFNAME: 1319 if (RTA_PAYLOAD(attr) >= IFNAMSIZ) 1320 break; 1321 os_memcpy(ifname, RTA_DATA(attr), RTA_PAYLOAD(attr)); 1322 ifname[RTA_PAYLOAD(attr)] = '\0'; 1323 break; 1324 case IFLA_MASTER: 1325 brid = nla_get_u32((struct nlattr *) attr); 1326 break; 1327 } 1328 attr = RTA_NEXT(attr, attrlen); 1329 } 1330 1331 if (ifname[0]) 1332 wpa_driver_nl80211_event_dellink(drv, ifname); 1333 1334 if (ifi->ifi_family == AF_BRIDGE && brid) { 1335 /* device has been removed from bridge */ 1336 char namebuf[IFNAMSIZ]; 1337 if_indextoname(brid, namebuf); 1338 wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge " 1339 "%s", brid, namebuf); 1340 del_ifidx(drv, brid); 1341 } 1342} 1343 1344 1345static void mlme_event_auth(struct wpa_driver_nl80211_data *drv, 1346 const u8 *frame, size_t len) 1347{ 1348 const struct ieee80211_mgmt *mgmt; 1349 union wpa_event_data event; 1350 1351 wpa_printf(MSG_DEBUG, "nl80211: Authenticate event"); 1352 mgmt = (const struct ieee80211_mgmt *) frame; 1353 if (len < 24 + sizeof(mgmt->u.auth)) { 1354 wpa_printf(MSG_DEBUG, "nl80211: Too short association event " 1355 "frame"); 1356 return; 1357 } 1358 1359 os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN); 1360 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 1361 os_memset(&event, 0, sizeof(event)); 1362 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN); 1363 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg); 1364 event.auth.auth_transaction = 1365 le_to_host16(mgmt->u.auth.auth_transaction); 1366 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code); 1367 if (len > 24 + sizeof(mgmt->u.auth)) { 1368 event.auth.ies = mgmt->u.auth.variable; 1369 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth); 1370 } 1371 1372 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event); 1373} 1374 1375 1376static unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv) 1377{ 1378 struct nl_msg *msg; 1379 int ret; 1380 struct nl80211_bss_info_arg arg; 1381 1382 os_memset(&arg, 0, sizeof(arg)); 1383 msg = nlmsg_alloc(); 1384 if (!msg) 1385 goto nla_put_failure; 1386 1387 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 1388 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 1389 1390 arg.drv = drv; 1391 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 1392 msg = NULL; 1393 if (ret == 0) { 1394 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the " 1395 "associated BSS from scan results: %u MHz", 1396 arg.assoc_freq); 1397 if (arg.assoc_freq) 1398 drv->assoc_freq = arg.assoc_freq; 1399 return drv->assoc_freq; 1400 } 1401 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 1402 "(%s)", ret, strerror(-ret)); 1403nla_put_failure: 1404 nlmsg_free(msg); 1405 return drv->assoc_freq; 1406} 1407 1408 1409static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv, 1410 const u8 *frame, size_t len) 1411{ 1412 const struct ieee80211_mgmt *mgmt; 1413 union wpa_event_data event; 1414 u16 status; 1415 1416 wpa_printf(MSG_DEBUG, "nl80211: Associate event"); 1417 mgmt = (const struct ieee80211_mgmt *) frame; 1418 if (len < 24 + sizeof(mgmt->u.assoc_resp)) { 1419 wpa_printf(MSG_DEBUG, "nl80211: Too short association event " 1420 "frame"); 1421 return; 1422 } 1423 1424 status = le_to_host16(mgmt->u.assoc_resp.status_code); 1425 if (status != WLAN_STATUS_SUCCESS) { 1426 os_memset(&event, 0, sizeof(event)); 1427 event.assoc_reject.bssid = mgmt->bssid; 1428 if (len > 24 + sizeof(mgmt->u.assoc_resp)) { 1429 event.assoc_reject.resp_ies = 1430 (u8 *) mgmt->u.assoc_resp.variable; 1431 event.assoc_reject.resp_ies_len = 1432 len - 24 - sizeof(mgmt->u.assoc_resp); 1433 } 1434 event.assoc_reject.status_code = status; 1435 1436 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); 1437 return; 1438 } 1439 1440 drv->associated = 1; 1441 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN); 1442 os_memcpy(drv->prev_bssid, mgmt->sa, ETH_ALEN); 1443 1444 os_memset(&event, 0, sizeof(event)); 1445 if (len > 24 + sizeof(mgmt->u.assoc_resp)) { 1446 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable; 1447 event.assoc_info.resp_ies_len = 1448 len - 24 - sizeof(mgmt->u.assoc_resp); 1449 } 1450 1451 event.assoc_info.freq = drv->assoc_freq; 1452 1453 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); 1454} 1455 1456 1457static void mlme_event_connect(struct wpa_driver_nl80211_data *drv, 1458 enum nl80211_commands cmd, struct nlattr *status, 1459 struct nlattr *addr, struct nlattr *req_ie, 1460 struct nlattr *resp_ie) 1461{ 1462 union wpa_event_data event; 1463 1464 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 1465 /* 1466 * Avoid reporting two association events that would confuse 1467 * the core code. 1468 */ 1469 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) " 1470 "when using userspace SME", cmd); 1471 return; 1472 } 1473 1474 if (cmd == NL80211_CMD_CONNECT) 1475 wpa_printf(MSG_DEBUG, "nl80211: Connect event"); 1476 else if (cmd == NL80211_CMD_ROAM) 1477 wpa_printf(MSG_DEBUG, "nl80211: Roam event"); 1478 1479 os_memset(&event, 0, sizeof(event)); 1480 if (cmd == NL80211_CMD_CONNECT && 1481 nla_get_u16(status) != WLAN_STATUS_SUCCESS) { 1482 if (addr) 1483 event.assoc_reject.bssid = nla_data(addr); 1484 if (resp_ie) { 1485 event.assoc_reject.resp_ies = nla_data(resp_ie); 1486 event.assoc_reject.resp_ies_len = nla_len(resp_ie); 1487 } 1488 event.assoc_reject.status_code = nla_get_u16(status); 1489 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); 1490 return; 1491 } 1492 1493 drv->associated = 1; 1494 if (addr) { 1495 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN); 1496 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); 1497 } 1498 1499 if (req_ie) { 1500 event.assoc_info.req_ies = nla_data(req_ie); 1501 event.assoc_info.req_ies_len = nla_len(req_ie); 1502 } 1503 if (resp_ie) { 1504 event.assoc_info.resp_ies = nla_data(resp_ie); 1505 event.assoc_info.resp_ies_len = nla_len(resp_ie); 1506 } 1507 1508 event.assoc_info.freq = nl80211_get_assoc_freq(drv); 1509 1510 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); 1511} 1512 1513 1514static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv, 1515 struct nlattr *reason, struct nlattr *addr, 1516 struct nlattr *by_ap) 1517{ 1518 union wpa_event_data data; 1519 unsigned int locally_generated = by_ap == NULL; 1520 1521 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 1522 /* 1523 * Avoid reporting two disassociation events that could 1524 * confuse the core code. 1525 */ 1526 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " 1527 "event when using userspace SME"); 1528 return; 1529 } 1530 1531 if (drv->ignore_next_local_disconnect) { 1532 drv->ignore_next_local_disconnect = 0; 1533 if (locally_generated) { 1534 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " 1535 "event triggered during reassociation"); 1536 return; 1537 } 1538 wpa_printf(MSG_WARNING, "nl80211: Was expecting local " 1539 "disconnect but got another disconnect " 1540 "event first"); 1541 } 1542 1543 wpa_printf(MSG_DEBUG, "nl80211: Disconnect event"); 1544 nl80211_mark_disconnected(drv); 1545 os_memset(&data, 0, sizeof(data)); 1546 if (reason) 1547 data.deauth_info.reason_code = nla_get_u16(reason); 1548 data.deauth_info.locally_generated = by_ap == NULL; 1549 wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, &data); 1550} 1551 1552 1553static void mlme_event_ch_switch(struct wpa_driver_nl80211_data *drv, 1554 struct nlattr *ifindex, struct nlattr *freq, 1555 struct nlattr *type, struct nlattr *bw, 1556 struct nlattr *cf1, struct nlattr *cf2) 1557{ 1558 struct i802_bss *bss; 1559 union wpa_event_data data; 1560 int ht_enabled = 1; 1561 int chan_offset = 0; 1562 int ifidx; 1563 1564 wpa_printf(MSG_DEBUG, "nl80211: Channel switch event"); 1565 1566 if (!freq) 1567 return; 1568 1569 ifidx = nla_get_u32(ifindex); 1570 for (bss = drv->first_bss; bss; bss = bss->next) 1571 if (bss->ifindex == ifidx) 1572 break; 1573 1574 if (bss == NULL) { 1575 wpa_printf(MSG_WARNING, "nl80211: Unknown ifindex (%d) for channel switch, ignoring", 1576 ifidx); 1577 return; 1578 } 1579 1580 if (type) { 1581 switch (nla_get_u32(type)) { 1582 case NL80211_CHAN_NO_HT: 1583 ht_enabled = 0; 1584 break; 1585 case NL80211_CHAN_HT20: 1586 break; 1587 case NL80211_CHAN_HT40PLUS: 1588 chan_offset = 1; 1589 break; 1590 case NL80211_CHAN_HT40MINUS: 1591 chan_offset = -1; 1592 break; 1593 } 1594 } 1595 1596 os_memset(&data, 0, sizeof(data)); 1597 data.ch_switch.freq = nla_get_u32(freq); 1598 data.ch_switch.ht_enabled = ht_enabled; 1599 data.ch_switch.ch_offset = chan_offset; 1600 if (bw) 1601 data.ch_switch.ch_width = convert2width(nla_get_u32(bw)); 1602 if (cf1) 1603 data.ch_switch.cf1 = nla_get_u32(cf1); 1604 if (cf2) 1605 data.ch_switch.cf2 = nla_get_u32(cf2); 1606 1607 bss->freq = data.ch_switch.freq; 1608 1609 wpa_supplicant_event(drv->ctx, EVENT_CH_SWITCH, &data); 1610} 1611 1612 1613static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv, 1614 enum nl80211_commands cmd, struct nlattr *addr) 1615{ 1616 union wpa_event_data event; 1617 enum wpa_event_type ev; 1618 1619 if (nla_len(addr) != ETH_ALEN) 1620 return; 1621 1622 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR, 1623 cmd, MAC2STR((u8 *) nla_data(addr))); 1624 1625 if (cmd == NL80211_CMD_AUTHENTICATE) 1626 ev = EVENT_AUTH_TIMED_OUT; 1627 else if (cmd == NL80211_CMD_ASSOCIATE) 1628 ev = EVENT_ASSOC_TIMED_OUT; 1629 else 1630 return; 1631 1632 os_memset(&event, 0, sizeof(event)); 1633 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN); 1634 wpa_supplicant_event(drv->ctx, ev, &event); 1635} 1636 1637 1638static void mlme_event_mgmt(struct wpa_driver_nl80211_data *drv, 1639 struct nlattr *freq, struct nlattr *sig, 1640 const u8 *frame, size_t len) 1641{ 1642 const struct ieee80211_mgmt *mgmt; 1643 union wpa_event_data event; 1644 u16 fc, stype; 1645 int ssi_signal = 0; 1646 int rx_freq = 0; 1647 1648 wpa_printf(MSG_MSGDUMP, "nl80211: Frame event"); 1649 mgmt = (const struct ieee80211_mgmt *) frame; 1650 if (len < 24) { 1651 wpa_printf(MSG_DEBUG, "nl80211: Too short management frame"); 1652 return; 1653 } 1654 1655 fc = le_to_host16(mgmt->frame_control); 1656 stype = WLAN_FC_GET_STYPE(fc); 1657 1658 if (sig) 1659 ssi_signal = (s32) nla_get_u32(sig); 1660 1661 os_memset(&event, 0, sizeof(event)); 1662 if (freq) { 1663 event.rx_mgmt.freq = nla_get_u32(freq); 1664 rx_freq = drv->last_mgmt_freq = event.rx_mgmt.freq; 1665 } 1666 wpa_printf(MSG_DEBUG, 1667 "nl80211: RX frame freq=%d ssi_signal=%d stype=%u len=%u", 1668 rx_freq, ssi_signal, stype, (unsigned int) len); 1669 event.rx_mgmt.frame = frame; 1670 event.rx_mgmt.frame_len = len; 1671 event.rx_mgmt.ssi_signal = ssi_signal; 1672 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 1673} 1674 1675 1676static void mlme_event_mgmt_tx_status(struct wpa_driver_nl80211_data *drv, 1677 struct nlattr *cookie, const u8 *frame, 1678 size_t len, struct nlattr *ack) 1679{ 1680 union wpa_event_data event; 1681 const struct ieee80211_hdr *hdr; 1682 u16 fc; 1683 1684 wpa_printf(MSG_DEBUG, "nl80211: Frame TX status event"); 1685 if (!is_ap_interface(drv->nlmode)) { 1686 u64 cookie_val; 1687 1688 if (!cookie) 1689 return; 1690 1691 cookie_val = nla_get_u64(cookie); 1692 wpa_printf(MSG_DEBUG, "nl80211: Action TX status:" 1693 " cookie=0%llx%s (ack=%d)", 1694 (long long unsigned int) cookie_val, 1695 cookie_val == drv->send_action_cookie ? 1696 " (match)" : " (unknown)", ack != NULL); 1697 if (cookie_val != drv->send_action_cookie) 1698 return; 1699 } 1700 1701 hdr = (const struct ieee80211_hdr *) frame; 1702 fc = le_to_host16(hdr->frame_control); 1703 1704 os_memset(&event, 0, sizeof(event)); 1705 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 1706 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 1707 event.tx_status.dst = hdr->addr1; 1708 event.tx_status.data = frame; 1709 event.tx_status.data_len = len; 1710 event.tx_status.ack = ack != NULL; 1711 wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event); 1712} 1713 1714 1715static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv, 1716 enum wpa_event_type type, 1717 const u8 *frame, size_t len) 1718{ 1719 const struct ieee80211_mgmt *mgmt; 1720 union wpa_event_data event; 1721 const u8 *bssid = NULL; 1722 u16 reason_code = 0; 1723 1724 if (type == EVENT_DEAUTH) 1725 wpa_printf(MSG_DEBUG, "nl80211: Deauthenticate event"); 1726 else 1727 wpa_printf(MSG_DEBUG, "nl80211: Disassociate event"); 1728 1729 mgmt = (const struct ieee80211_mgmt *) frame; 1730 if (len >= 24) { 1731 bssid = mgmt->bssid; 1732 1733 if ((drv->capa.flags & WPA_DRIVER_FLAGS_SME) && 1734 !drv->associated && 1735 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0 && 1736 os_memcmp(bssid, drv->auth_attempt_bssid, ETH_ALEN) != 0 && 1737 os_memcmp(bssid, drv->prev_bssid, ETH_ALEN) == 0) { 1738 /* 1739 * Avoid issues with some roaming cases where 1740 * disconnection event for the old AP may show up after 1741 * we have started connection with the new AP. 1742 */ 1743 wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth/disassoc event from old AP " MACSTR " when already authenticating with " MACSTR, 1744 MAC2STR(bssid), 1745 MAC2STR(drv->auth_attempt_bssid)); 1746 return; 1747 } 1748 1749 if (drv->associated != 0 && 1750 os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 && 1751 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) { 1752 /* 1753 * We have presumably received this deauth as a 1754 * response to a clear_state_mismatch() outgoing 1755 * deauth. Don't let it take us offline! 1756 */ 1757 wpa_printf(MSG_DEBUG, "nl80211: Deauth received " 1758 "from Unknown BSSID " MACSTR " -- ignoring", 1759 MAC2STR(bssid)); 1760 return; 1761 } 1762 } 1763 1764 nl80211_mark_disconnected(drv); 1765 os_memset(&event, 0, sizeof(event)); 1766 1767 /* Note: Same offset for Reason Code in both frame subtypes */ 1768 if (len >= 24 + sizeof(mgmt->u.deauth)) 1769 reason_code = le_to_host16(mgmt->u.deauth.reason_code); 1770 1771 if (type == EVENT_DISASSOC) { 1772 event.disassoc_info.locally_generated = 1773 !os_memcmp(mgmt->sa, drv->first_bss->addr, ETH_ALEN); 1774 event.disassoc_info.addr = bssid; 1775 event.disassoc_info.reason_code = reason_code; 1776 if (frame + len > mgmt->u.disassoc.variable) { 1777 event.disassoc_info.ie = mgmt->u.disassoc.variable; 1778 event.disassoc_info.ie_len = frame + len - 1779 mgmt->u.disassoc.variable; 1780 } 1781 } else { 1782 event.deauth_info.locally_generated = 1783 !os_memcmp(mgmt->sa, drv->first_bss->addr, ETH_ALEN); 1784 event.deauth_info.addr = bssid; 1785 event.deauth_info.reason_code = reason_code; 1786 if (frame + len > mgmt->u.deauth.variable) { 1787 event.deauth_info.ie = mgmt->u.deauth.variable; 1788 event.deauth_info.ie_len = frame + len - 1789 mgmt->u.deauth.variable; 1790 } 1791 } 1792 1793 wpa_supplicant_event(drv->ctx, type, &event); 1794} 1795 1796 1797static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv, 1798 enum wpa_event_type type, 1799 const u8 *frame, size_t len) 1800{ 1801 const struct ieee80211_mgmt *mgmt; 1802 union wpa_event_data event; 1803 u16 reason_code = 0; 1804 1805 if (type == EVENT_UNPROT_DEAUTH) 1806 wpa_printf(MSG_DEBUG, "nl80211: Unprot Deauthenticate event"); 1807 else 1808 wpa_printf(MSG_DEBUG, "nl80211: Unprot Disassociate event"); 1809 1810 if (len < 24) 1811 return; 1812 1813 mgmt = (const struct ieee80211_mgmt *) frame; 1814 1815 os_memset(&event, 0, sizeof(event)); 1816 /* Note: Same offset for Reason Code in both frame subtypes */ 1817 if (len >= 24 + sizeof(mgmt->u.deauth)) 1818 reason_code = le_to_host16(mgmt->u.deauth.reason_code); 1819 1820 if (type == EVENT_UNPROT_DISASSOC) { 1821 event.unprot_disassoc.sa = mgmt->sa; 1822 event.unprot_disassoc.da = mgmt->da; 1823 event.unprot_disassoc.reason_code = reason_code; 1824 } else { 1825 event.unprot_deauth.sa = mgmt->sa; 1826 event.unprot_deauth.da = mgmt->da; 1827 event.unprot_deauth.reason_code = reason_code; 1828 } 1829 1830 wpa_supplicant_event(drv->ctx, type, &event); 1831} 1832 1833 1834static void mlme_event(struct i802_bss *bss, 1835 enum nl80211_commands cmd, struct nlattr *frame, 1836 struct nlattr *addr, struct nlattr *timed_out, 1837 struct nlattr *freq, struct nlattr *ack, 1838 struct nlattr *cookie, struct nlattr *sig) 1839{ 1840 struct wpa_driver_nl80211_data *drv = bss->drv; 1841 const u8 *data; 1842 size_t len; 1843 1844 if (timed_out && addr) { 1845 mlme_timeout_event(drv, cmd, addr); 1846 return; 1847 } 1848 1849 if (frame == NULL) { 1850 wpa_printf(MSG_DEBUG, 1851 "nl80211: MLME event %d (%s) without frame data", 1852 cmd, nl80211_command_to_string(cmd)); 1853 return; 1854 } 1855 1856 data = nla_data(frame); 1857 len = nla_len(frame); 1858 if (len < 4 + 2 * ETH_ALEN) { 1859 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" 1860 MACSTR ") - too short", 1861 cmd, nl80211_command_to_string(cmd), bss->ifname, 1862 MAC2STR(bss->addr)); 1863 return; 1864 } 1865 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" MACSTR 1866 ") A1=" MACSTR " A2=" MACSTR, cmd, 1867 nl80211_command_to_string(cmd), bss->ifname, 1868 MAC2STR(bss->addr), MAC2STR(data + 4), 1869 MAC2STR(data + 4 + ETH_ALEN)); 1870 if (cmd != NL80211_CMD_FRAME_TX_STATUS && !(data[4] & 0x01) && 1871 os_memcmp(bss->addr, data + 4, ETH_ALEN) != 0 && 1872 os_memcmp(bss->addr, data + 4 + ETH_ALEN, ETH_ALEN) != 0) { 1873 wpa_printf(MSG_MSGDUMP, "nl80211: %s: Ignore MLME frame event " 1874 "for foreign address", bss->ifname); 1875 return; 1876 } 1877 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame", 1878 nla_data(frame), nla_len(frame)); 1879 1880 switch (cmd) { 1881 case NL80211_CMD_AUTHENTICATE: 1882 mlme_event_auth(drv, nla_data(frame), nla_len(frame)); 1883 break; 1884 case NL80211_CMD_ASSOCIATE: 1885 mlme_event_assoc(drv, nla_data(frame), nla_len(frame)); 1886 break; 1887 case NL80211_CMD_DEAUTHENTICATE: 1888 mlme_event_deauth_disassoc(drv, EVENT_DEAUTH, 1889 nla_data(frame), nla_len(frame)); 1890 break; 1891 case NL80211_CMD_DISASSOCIATE: 1892 mlme_event_deauth_disassoc(drv, EVENT_DISASSOC, 1893 nla_data(frame), nla_len(frame)); 1894 break; 1895 case NL80211_CMD_FRAME: 1896 mlme_event_mgmt(drv, freq, sig, nla_data(frame), 1897 nla_len(frame)); 1898 break; 1899 case NL80211_CMD_FRAME_TX_STATUS: 1900 mlme_event_mgmt_tx_status(drv, cookie, nla_data(frame), 1901 nla_len(frame), ack); 1902 break; 1903 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 1904 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH, 1905 nla_data(frame), nla_len(frame)); 1906 break; 1907 case NL80211_CMD_UNPROT_DISASSOCIATE: 1908 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC, 1909 nla_data(frame), nla_len(frame)); 1910 break; 1911 default: 1912 break; 1913 } 1914} 1915 1916 1917static void mlme_event_michael_mic_failure(struct i802_bss *bss, 1918 struct nlattr *tb[]) 1919{ 1920 union wpa_event_data data; 1921 1922 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure"); 1923 os_memset(&data, 0, sizeof(data)); 1924 if (tb[NL80211_ATTR_MAC]) { 1925 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address", 1926 nla_data(tb[NL80211_ATTR_MAC]), 1927 nla_len(tb[NL80211_ATTR_MAC])); 1928 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]); 1929 } 1930 if (tb[NL80211_ATTR_KEY_SEQ]) { 1931 wpa_hexdump(MSG_DEBUG, "nl80211: TSC", 1932 nla_data(tb[NL80211_ATTR_KEY_SEQ]), 1933 nla_len(tb[NL80211_ATTR_KEY_SEQ])); 1934 } 1935 if (tb[NL80211_ATTR_KEY_TYPE]) { 1936 enum nl80211_key_type key_type = 1937 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]); 1938 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type); 1939 if (key_type == NL80211_KEYTYPE_PAIRWISE) 1940 data.michael_mic_failure.unicast = 1; 1941 } else 1942 data.michael_mic_failure.unicast = 1; 1943 1944 if (tb[NL80211_ATTR_KEY_IDX]) { 1945 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]); 1946 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id); 1947 } 1948 1949 wpa_supplicant_event(bss->ctx, EVENT_MICHAEL_MIC_FAILURE, &data); 1950} 1951 1952 1953static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv, 1954 struct nlattr *tb[]) 1955{ 1956 if (tb[NL80211_ATTR_MAC] == NULL) { 1957 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined " 1958 "event"); 1959 return; 1960 } 1961 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 1962 1963 drv->associated = 1; 1964 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined", 1965 MAC2STR(drv->bssid)); 1966 1967 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL); 1968} 1969 1970 1971static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv, 1972 int cancel_event, struct nlattr *tb[]) 1973{ 1974 unsigned int freq, chan_type, duration; 1975 union wpa_event_data data; 1976 u64 cookie; 1977 1978 if (tb[NL80211_ATTR_WIPHY_FREQ]) 1979 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); 1980 else 1981 freq = 0; 1982 1983 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) 1984 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); 1985 else 1986 chan_type = 0; 1987 1988 if (tb[NL80211_ATTR_DURATION]) 1989 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]); 1990 else 1991 duration = 0; 1992 1993 if (tb[NL80211_ATTR_COOKIE]) 1994 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 1995 else 1996 cookie = 0; 1997 1998 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d " 1999 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))", 2000 cancel_event, freq, chan_type, duration, 2001 (long long unsigned int) cookie, 2002 cookie == drv->remain_on_chan_cookie ? "match" : "unknown"); 2003 2004 if (cookie != drv->remain_on_chan_cookie) 2005 return; /* not for us */ 2006 2007 if (cancel_event) 2008 drv->pending_remain_on_chan = 0; 2009 2010 os_memset(&data, 0, sizeof(data)); 2011 data.remain_on_channel.freq = freq; 2012 data.remain_on_channel.duration = duration; 2013 wpa_supplicant_event(drv->ctx, cancel_event ? 2014 EVENT_CANCEL_REMAIN_ON_CHANNEL : 2015 EVENT_REMAIN_ON_CHANNEL, &data); 2016} 2017 2018 2019static void mlme_event_ft_event(struct wpa_driver_nl80211_data *drv, 2020 struct nlattr *tb[]) 2021{ 2022 union wpa_event_data data; 2023 2024 os_memset(&data, 0, sizeof(data)); 2025 2026 if (tb[NL80211_ATTR_IE]) { 2027 data.ft_ies.ies = nla_data(tb[NL80211_ATTR_IE]); 2028 data.ft_ies.ies_len = nla_len(tb[NL80211_ATTR_IE]); 2029 } 2030 2031 if (tb[NL80211_ATTR_IE_RIC]) { 2032 data.ft_ies.ric_ies = nla_data(tb[NL80211_ATTR_IE_RIC]); 2033 data.ft_ies.ric_ies_len = nla_len(tb[NL80211_ATTR_IE_RIC]); 2034 } 2035 2036 if (tb[NL80211_ATTR_MAC]) 2037 os_memcpy(data.ft_ies.target_ap, 2038 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2039 2040 wpa_printf(MSG_DEBUG, "nl80211: FT event target_ap " MACSTR, 2041 MAC2STR(data.ft_ies.target_ap)); 2042 2043 wpa_supplicant_event(drv->ctx, EVENT_FT_RESPONSE, &data); 2044} 2045 2046 2047static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted, 2048 struct nlattr *tb[]) 2049{ 2050 union wpa_event_data event; 2051 struct nlattr *nl; 2052 int rem; 2053 struct scan_info *info; 2054#define MAX_REPORT_FREQS 50 2055 int freqs[MAX_REPORT_FREQS]; 2056 int num_freqs = 0; 2057 2058 if (drv->scan_for_auth) { 2059 drv->scan_for_auth = 0; 2060 wpa_printf(MSG_DEBUG, "nl80211: Scan results for missing " 2061 "cfg80211 BSS entry"); 2062 wpa_driver_nl80211_authenticate_retry(drv); 2063 return; 2064 } 2065 2066 os_memset(&event, 0, sizeof(event)); 2067 info = &event.scan_info; 2068 info->aborted = aborted; 2069 2070 if (tb[NL80211_ATTR_SCAN_SSIDS]) { 2071 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) { 2072 struct wpa_driver_scan_ssid *s = 2073 &info->ssids[info->num_ssids]; 2074 s->ssid = nla_data(nl); 2075 s->ssid_len = nla_len(nl); 2076 wpa_printf(MSG_DEBUG, "nl80211: Scan probed for SSID '%s'", 2077 wpa_ssid_txt(s->ssid, s->ssid_len)); 2078 info->num_ssids++; 2079 if (info->num_ssids == WPAS_MAX_SCAN_SSIDS) 2080 break; 2081 } 2082 } 2083 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) { 2084 char msg[200], *pos, *end; 2085 int res; 2086 2087 pos = msg; 2088 end = pos + sizeof(msg); 2089 *pos = '\0'; 2090 2091 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem) 2092 { 2093 freqs[num_freqs] = nla_get_u32(nl); 2094 res = os_snprintf(pos, end - pos, " %d", 2095 freqs[num_freqs]); 2096 if (res > 0 && end - pos > res) 2097 pos += res; 2098 num_freqs++; 2099 if (num_freqs == MAX_REPORT_FREQS - 1) 2100 break; 2101 } 2102 info->freqs = freqs; 2103 info->num_freqs = num_freqs; 2104 wpa_printf(MSG_DEBUG, "nl80211: Scan included frequencies:%s", 2105 msg); 2106 } 2107 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event); 2108} 2109 2110 2111static int get_link_signal(struct nl_msg *msg, void *arg) 2112{ 2113 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2114 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2115 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1]; 2116 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = { 2117 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 }, 2118 [NL80211_STA_INFO_SIGNAL_AVG] = { .type = NLA_U8 }, 2119 }; 2120 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1]; 2121 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = { 2122 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 }, 2123 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 }, 2124 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG }, 2125 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG }, 2126 }; 2127 struct wpa_signal_info *sig_change = arg; 2128 2129 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2130 genlmsg_attrlen(gnlh, 0), NULL); 2131 if (!tb[NL80211_ATTR_STA_INFO] || 2132 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX, 2133 tb[NL80211_ATTR_STA_INFO], policy)) 2134 return NL_SKIP; 2135 if (!sinfo[NL80211_STA_INFO_SIGNAL]) 2136 return NL_SKIP; 2137 2138 sig_change->current_signal = 2139 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]); 2140 2141 if (sinfo[NL80211_STA_INFO_SIGNAL_AVG]) 2142 sig_change->avg_signal = 2143 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL_AVG]); 2144 else 2145 sig_change->avg_signal = 0; 2146 2147 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) { 2148 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX, 2149 sinfo[NL80211_STA_INFO_TX_BITRATE], 2150 rate_policy)) { 2151 sig_change->current_txrate = 0; 2152 } else { 2153 if (rinfo[NL80211_RATE_INFO_BITRATE]) { 2154 sig_change->current_txrate = 2155 nla_get_u16(rinfo[ 2156 NL80211_RATE_INFO_BITRATE]) * 100; 2157 } 2158 } 2159 } 2160 2161 return NL_SKIP; 2162} 2163 2164 2165static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv, 2166 struct wpa_signal_info *sig) 2167{ 2168 struct nl_msg *msg; 2169 2170 sig->current_signal = -9999; 2171 sig->current_txrate = 0; 2172 2173 msg = nlmsg_alloc(); 2174 if (!msg) 2175 return -ENOMEM; 2176 2177 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 2178 2179 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2180 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 2181 2182 return send_and_recv_msgs(drv, msg, get_link_signal, sig); 2183 nla_put_failure: 2184 nlmsg_free(msg); 2185 return -ENOBUFS; 2186} 2187 2188 2189static int get_link_noise(struct nl_msg *msg, void *arg) 2190{ 2191 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2192 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2193 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 2194 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 2195 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 2196 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 2197 }; 2198 struct wpa_signal_info *sig_change = arg; 2199 2200 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2201 genlmsg_attrlen(gnlh, 0), NULL); 2202 2203 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 2204 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!"); 2205 return NL_SKIP; 2206 } 2207 2208 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 2209 tb[NL80211_ATTR_SURVEY_INFO], 2210 survey_policy)) { 2211 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested " 2212 "attributes!"); 2213 return NL_SKIP; 2214 } 2215 2216 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 2217 return NL_SKIP; 2218 2219 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 2220 sig_change->frequency) 2221 return NL_SKIP; 2222 2223 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 2224 return NL_SKIP; 2225 2226 sig_change->current_noise = 2227 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 2228 2229 return NL_SKIP; 2230} 2231 2232 2233static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv, 2234 struct wpa_signal_info *sig_change) 2235{ 2236 struct nl_msg *msg; 2237 2238 sig_change->current_noise = 9999; 2239 sig_change->frequency = drv->assoc_freq; 2240 2241 msg = nlmsg_alloc(); 2242 if (!msg) 2243 return -ENOMEM; 2244 2245 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 2246 2247 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2248 2249 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change); 2250 nla_put_failure: 2251 nlmsg_free(msg); 2252 return -ENOBUFS; 2253} 2254 2255 2256static int get_noise_for_scan_results(struct nl_msg *msg, void *arg) 2257{ 2258 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2259 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2260 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 2261 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 2262 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 2263 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 2264 }; 2265 struct wpa_scan_results *scan_results = arg; 2266 struct wpa_scan_res *scan_res; 2267 size_t i; 2268 2269 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2270 genlmsg_attrlen(gnlh, 0), NULL); 2271 2272 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 2273 wpa_printf(MSG_DEBUG, "nl80211: Survey data missing"); 2274 return NL_SKIP; 2275 } 2276 2277 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 2278 tb[NL80211_ATTR_SURVEY_INFO], 2279 survey_policy)) { 2280 wpa_printf(MSG_DEBUG, "nl80211: Failed to parse nested " 2281 "attributes"); 2282 return NL_SKIP; 2283 } 2284 2285 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 2286 return NL_SKIP; 2287 2288 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 2289 return NL_SKIP; 2290 2291 for (i = 0; i < scan_results->num; ++i) { 2292 scan_res = scan_results->res[i]; 2293 if (!scan_res) 2294 continue; 2295 if ((int) nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 2296 scan_res->freq) 2297 continue; 2298 if (!(scan_res->flags & WPA_SCAN_NOISE_INVALID)) 2299 continue; 2300 scan_res->noise = (s8) 2301 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 2302 scan_res->flags &= ~WPA_SCAN_NOISE_INVALID; 2303 } 2304 2305 return NL_SKIP; 2306} 2307 2308 2309static int nl80211_get_noise_for_scan_results( 2310 struct wpa_driver_nl80211_data *drv, 2311 struct wpa_scan_results *scan_res) 2312{ 2313 struct nl_msg *msg; 2314 2315 msg = nlmsg_alloc(); 2316 if (!msg) 2317 return -ENOMEM; 2318 2319 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 2320 2321 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2322 2323 return send_and_recv_msgs(drv, msg, get_noise_for_scan_results, 2324 scan_res); 2325 nla_put_failure: 2326 nlmsg_free(msg); 2327 return -ENOBUFS; 2328} 2329 2330 2331static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv, 2332 struct nlattr *tb[]) 2333{ 2334 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = { 2335 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, 2336 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 }, 2337 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, 2338 [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 }, 2339 }; 2340 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1]; 2341 enum nl80211_cqm_rssi_threshold_event event; 2342 union wpa_event_data ed; 2343 struct wpa_signal_info sig; 2344 int res; 2345 2346 if (tb[NL80211_ATTR_CQM] == NULL || 2347 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM], 2348 cqm_policy)) { 2349 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event"); 2350 return; 2351 } 2352 2353 os_memset(&ed, 0, sizeof(ed)); 2354 2355 if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) { 2356 if (!tb[NL80211_ATTR_MAC]) 2357 return; 2358 os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]), 2359 ETH_ALEN); 2360 wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed); 2361 return; 2362 } 2363 2364 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL) 2365 return; 2366 event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]); 2367 2368 if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) { 2369 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 2370 "event: RSSI high"); 2371 ed.signal_change.above_threshold = 1; 2372 } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) { 2373 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 2374 "event: RSSI low"); 2375 ed.signal_change.above_threshold = 0; 2376 } else 2377 return; 2378 2379 res = nl80211_get_link_signal(drv, &sig); 2380 if (res == 0) { 2381 ed.signal_change.current_signal = sig.current_signal; 2382 ed.signal_change.current_txrate = sig.current_txrate; 2383 wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d", 2384 sig.current_signal, sig.current_txrate); 2385 } 2386 2387 res = nl80211_get_link_noise(drv, &sig); 2388 if (res == 0) { 2389 ed.signal_change.current_noise = sig.current_noise; 2390 wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm", 2391 sig.current_noise); 2392 } 2393 2394 wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed); 2395} 2396 2397 2398static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv, 2399 struct nlattr **tb) 2400{ 2401 u8 *addr; 2402 union wpa_event_data data; 2403 2404 if (tb[NL80211_ATTR_MAC] == NULL) 2405 return; 2406 addr = nla_data(tb[NL80211_ATTR_MAC]); 2407 wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr)); 2408 2409 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2410 u8 *ies = NULL; 2411 size_t ies_len = 0; 2412 if (tb[NL80211_ATTR_IE]) { 2413 ies = nla_data(tb[NL80211_ATTR_IE]); 2414 ies_len = nla_len(tb[NL80211_ATTR_IE]); 2415 } 2416 wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len); 2417 drv_event_assoc(drv->ctx, addr, ies, ies_len, 0); 2418 return; 2419 } 2420 2421 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2422 return; 2423 2424 os_memset(&data, 0, sizeof(data)); 2425 os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN); 2426 wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data); 2427} 2428 2429 2430static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv, 2431 struct nlattr **tb) 2432{ 2433 u8 *addr; 2434 union wpa_event_data data; 2435 2436 if (tb[NL80211_ATTR_MAC] == NULL) 2437 return; 2438 addr = nla_data(tb[NL80211_ATTR_MAC]); 2439 wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR, 2440 MAC2STR(addr)); 2441 2442 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2443 drv_event_disassoc(drv->ctx, addr); 2444 return; 2445 } 2446 2447 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2448 return; 2449 2450 os_memset(&data, 0, sizeof(data)); 2451 os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN); 2452 wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data); 2453} 2454 2455 2456static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv, 2457 struct nlattr **tb) 2458{ 2459 struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA]; 2460 static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = { 2461 [NL80211_REKEY_DATA_KEK] = { 2462 .minlen = NL80211_KEK_LEN, 2463 .maxlen = NL80211_KEK_LEN, 2464 }, 2465 [NL80211_REKEY_DATA_KCK] = { 2466 .minlen = NL80211_KCK_LEN, 2467 .maxlen = NL80211_KCK_LEN, 2468 }, 2469 [NL80211_REKEY_DATA_REPLAY_CTR] = { 2470 .minlen = NL80211_REPLAY_CTR_LEN, 2471 .maxlen = NL80211_REPLAY_CTR_LEN, 2472 }, 2473 }; 2474 union wpa_event_data data; 2475 2476 if (!tb[NL80211_ATTR_MAC]) 2477 return; 2478 if (!tb[NL80211_ATTR_REKEY_DATA]) 2479 return; 2480 if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA, 2481 tb[NL80211_ATTR_REKEY_DATA], rekey_policy)) 2482 return; 2483 if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]) 2484 return; 2485 2486 os_memset(&data, 0, sizeof(data)); 2487 data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]); 2488 wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR, 2489 MAC2STR(data.driver_gtk_rekey.bssid)); 2490 data.driver_gtk_rekey.replay_ctr = 2491 nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]); 2492 wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter", 2493 data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN); 2494 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data); 2495} 2496 2497 2498static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv, 2499 struct nlattr **tb) 2500{ 2501 struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE]; 2502 static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = { 2503 [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 }, 2504 [NL80211_PMKSA_CANDIDATE_BSSID] = { 2505 .minlen = ETH_ALEN, 2506 .maxlen = ETH_ALEN, 2507 }, 2508 [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG }, 2509 }; 2510 union wpa_event_data data; 2511 2512 wpa_printf(MSG_DEBUG, "nl80211: PMKSA candidate event"); 2513 2514 if (!tb[NL80211_ATTR_PMKSA_CANDIDATE]) 2515 return; 2516 if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE, 2517 tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy)) 2518 return; 2519 if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] || 2520 !cand[NL80211_PMKSA_CANDIDATE_BSSID]) 2521 return; 2522 2523 os_memset(&data, 0, sizeof(data)); 2524 os_memcpy(data.pmkid_candidate.bssid, 2525 nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN); 2526 data.pmkid_candidate.index = 2527 nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]); 2528 data.pmkid_candidate.preauth = 2529 cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL; 2530 wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data); 2531} 2532 2533 2534static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv, 2535 struct nlattr **tb) 2536{ 2537 union wpa_event_data data; 2538 2539 wpa_printf(MSG_DEBUG, "nl80211: Probe client event"); 2540 2541 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_ACK]) 2542 return; 2543 2544 os_memset(&data, 0, sizeof(data)); 2545 os_memcpy(data.client_poll.addr, 2546 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2547 2548 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_CLIENT_POLL_OK, &data); 2549} 2550 2551 2552static void nl80211_tdls_oper_event(struct wpa_driver_nl80211_data *drv, 2553 struct nlattr **tb) 2554{ 2555 union wpa_event_data data; 2556 2557 wpa_printf(MSG_DEBUG, "nl80211: TDLS operation event"); 2558 2559 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_TDLS_OPERATION]) 2560 return; 2561 2562 os_memset(&data, 0, sizeof(data)); 2563 os_memcpy(data.tdls.peer, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2564 switch (nla_get_u8(tb[NL80211_ATTR_TDLS_OPERATION])) { 2565 case NL80211_TDLS_SETUP: 2566 wpa_printf(MSG_DEBUG, "nl80211: TDLS setup request for peer " 2567 MACSTR, MAC2STR(data.tdls.peer)); 2568 data.tdls.oper = TDLS_REQUEST_SETUP; 2569 break; 2570 case NL80211_TDLS_TEARDOWN: 2571 wpa_printf(MSG_DEBUG, "nl80211: TDLS teardown request for peer " 2572 MACSTR, MAC2STR(data.tdls.peer)); 2573 data.tdls.oper = TDLS_REQUEST_TEARDOWN; 2574 break; 2575 default: 2576 wpa_printf(MSG_DEBUG, "nl80211: Unsupported TDLS operatione " 2577 "event"); 2578 return; 2579 } 2580 if (tb[NL80211_ATTR_REASON_CODE]) { 2581 data.tdls.reason_code = 2582 nla_get_u16(tb[NL80211_ATTR_REASON_CODE]); 2583 } 2584 2585 wpa_supplicant_event(drv->ctx, EVENT_TDLS, &data); 2586} 2587 2588 2589static void nl80211_stop_ap(struct wpa_driver_nl80211_data *drv, 2590 struct nlattr **tb) 2591{ 2592 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_UNAVAILABLE, NULL); 2593} 2594 2595 2596static void nl80211_connect_failed_event(struct wpa_driver_nl80211_data *drv, 2597 struct nlattr **tb) 2598{ 2599 union wpa_event_data data; 2600 u32 reason; 2601 2602 wpa_printf(MSG_DEBUG, "nl80211: Connect failed event"); 2603 2604 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_CONN_FAILED_REASON]) 2605 return; 2606 2607 os_memset(&data, 0, sizeof(data)); 2608 os_memcpy(data.connect_failed_reason.addr, 2609 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2610 2611 reason = nla_get_u32(tb[NL80211_ATTR_CONN_FAILED_REASON]); 2612 switch (reason) { 2613 case NL80211_CONN_FAIL_MAX_CLIENTS: 2614 wpa_printf(MSG_DEBUG, "nl80211: Max client reached"); 2615 data.connect_failed_reason.code = MAX_CLIENT_REACHED; 2616 break; 2617 case NL80211_CONN_FAIL_BLOCKED_CLIENT: 2618 wpa_printf(MSG_DEBUG, "nl80211: Blocked client " MACSTR 2619 " tried to connect", 2620 MAC2STR(data.connect_failed_reason.addr)); 2621 data.connect_failed_reason.code = BLOCKED_CLIENT; 2622 break; 2623 default: 2624 wpa_printf(MSG_DEBUG, "nl8021l: Unknown connect failed reason " 2625 "%u", reason); 2626 return; 2627 } 2628 2629 wpa_supplicant_event(drv->ctx, EVENT_CONNECT_FAILED_REASON, &data); 2630} 2631 2632 2633static void nl80211_radar_event(struct wpa_driver_nl80211_data *drv, 2634 struct nlattr **tb) 2635{ 2636 union wpa_event_data data; 2637 enum nl80211_radar_event event_type; 2638 2639 if (!tb[NL80211_ATTR_WIPHY_FREQ] || !tb[NL80211_ATTR_RADAR_EVENT]) 2640 return; 2641 2642 os_memset(&data, 0, sizeof(data)); 2643 data.dfs_event.freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); 2644 event_type = nla_get_u32(tb[NL80211_ATTR_RADAR_EVENT]); 2645 2646 /* Check HT params */ 2647 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { 2648 data.dfs_event.ht_enabled = 1; 2649 data.dfs_event.chan_offset = 0; 2650 2651 switch (nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])) { 2652 case NL80211_CHAN_NO_HT: 2653 data.dfs_event.ht_enabled = 0; 2654 break; 2655 case NL80211_CHAN_HT20: 2656 break; 2657 case NL80211_CHAN_HT40PLUS: 2658 data.dfs_event.chan_offset = 1; 2659 break; 2660 case NL80211_CHAN_HT40MINUS: 2661 data.dfs_event.chan_offset = -1; 2662 break; 2663 } 2664 } 2665 2666 /* Get VHT params */ 2667 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) 2668 data.dfs_event.chan_width = 2669 convert2width(nla_get_u32( 2670 tb[NL80211_ATTR_CHANNEL_WIDTH])); 2671 if (tb[NL80211_ATTR_CENTER_FREQ1]) 2672 data.dfs_event.cf1 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); 2673 if (tb[NL80211_ATTR_CENTER_FREQ2]) 2674 data.dfs_event.cf2 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); 2675 2676 wpa_printf(MSG_DEBUG, "nl80211: DFS event on freq %d MHz, ht: %d, offset: %d, width: %d, cf1: %dMHz, cf2: %dMHz", 2677 data.dfs_event.freq, data.dfs_event.ht_enabled, 2678 data.dfs_event.chan_offset, data.dfs_event.chan_width, 2679 data.dfs_event.cf1, data.dfs_event.cf2); 2680 2681 switch (event_type) { 2682 case NL80211_RADAR_DETECTED: 2683 wpa_supplicant_event(drv->ctx, EVENT_DFS_RADAR_DETECTED, &data); 2684 break; 2685 case NL80211_RADAR_CAC_FINISHED: 2686 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_FINISHED, &data); 2687 break; 2688 case NL80211_RADAR_CAC_ABORTED: 2689 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_ABORTED, &data); 2690 break; 2691 case NL80211_RADAR_NOP_FINISHED: 2692 wpa_supplicant_event(drv->ctx, EVENT_DFS_NOP_FINISHED, &data); 2693 break; 2694 default: 2695 wpa_printf(MSG_DEBUG, "nl80211: Unknown radar event %d " 2696 "received", event_type); 2697 break; 2698 } 2699} 2700 2701 2702static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb, 2703 int wds) 2704{ 2705 struct wpa_driver_nl80211_data *drv = bss->drv; 2706 union wpa_event_data event; 2707 2708 if (!tb[NL80211_ATTR_MAC]) 2709 return; 2710 2711 os_memset(&event, 0, sizeof(event)); 2712 event.rx_from_unknown.bssid = bss->addr; 2713 event.rx_from_unknown.addr = nla_data(tb[NL80211_ATTR_MAC]); 2714 event.rx_from_unknown.wds = wds; 2715 2716 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 2717} 2718 2719 2720static void qca_nl80211_avoid_freq(struct wpa_driver_nl80211_data *drv, 2721 const u8 *data, size_t len) 2722{ 2723 u32 i, count; 2724 union wpa_event_data event; 2725 struct wpa_freq_range *range = NULL; 2726 const struct qca_avoid_freq_list *freq_range; 2727 2728 freq_range = (const struct qca_avoid_freq_list *) data; 2729 if (len < sizeof(freq_range->count)) 2730 return; 2731 2732 count = freq_range->count; 2733 if (len < sizeof(freq_range->count) + 2734 count * sizeof(struct qca_avoid_freq_range)) { 2735 wpa_printf(MSG_DEBUG, "nl80211: Ignored too short avoid frequency list (len=%u)", 2736 (unsigned int) len); 2737 return; 2738 } 2739 2740 if (count > 0) { 2741 range = os_calloc(count, sizeof(struct wpa_freq_range)); 2742 if (range == NULL) 2743 return; 2744 } 2745 2746 os_memset(&event, 0, sizeof(event)); 2747 for (i = 0; i < count; i++) { 2748 unsigned int idx = event.freq_range.num; 2749 range[idx].min = freq_range->range[i].start_freq; 2750 range[idx].max = freq_range->range[i].end_freq; 2751 wpa_printf(MSG_DEBUG, "nl80211: Avoid frequency range: %u-%u", 2752 range[idx].min, range[idx].max); 2753 if (range[idx].min > range[idx].max) { 2754 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid frequency range"); 2755 continue; 2756 } 2757 event.freq_range.num++; 2758 } 2759 event.freq_range.range = range; 2760 2761 wpa_supplicant_event(drv->ctx, EVENT_AVOID_FREQUENCIES, &event); 2762 2763 os_free(range); 2764} 2765 2766 2767static void nl80211_vendor_event_qca(struct wpa_driver_nl80211_data *drv, 2768 u32 subcmd, u8 *data, size_t len) 2769{ 2770 switch (subcmd) { 2771 case QCA_NL80211_VENDOR_SUBCMD_AVOID_FREQUENCY: 2772 qca_nl80211_avoid_freq(drv, data, len); 2773 break; 2774 default: 2775 wpa_printf(MSG_DEBUG, 2776 "nl80211: Ignore unsupported QCA vendor event %u", 2777 subcmd); 2778 break; 2779 } 2780} 2781 2782 2783static void nl80211_vendor_event(struct wpa_driver_nl80211_data *drv, 2784 struct nlattr **tb) 2785{ 2786 u32 vendor_id, subcmd, wiphy = 0; 2787 int wiphy_idx; 2788 u8 *data = NULL; 2789 size_t len = 0; 2790 2791 if (!tb[NL80211_ATTR_VENDOR_ID] || 2792 !tb[NL80211_ATTR_VENDOR_SUBCMD]) 2793 return; 2794 2795 vendor_id = nla_get_u32(tb[NL80211_ATTR_VENDOR_ID]); 2796 subcmd = nla_get_u32(tb[NL80211_ATTR_VENDOR_SUBCMD]); 2797 2798 if (tb[NL80211_ATTR_WIPHY]) 2799 wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]); 2800 2801 wpa_printf(MSG_DEBUG, "nl80211: Vendor event: wiphy=%u vendor_id=0x%x subcmd=%u", 2802 wiphy, vendor_id, subcmd); 2803 2804 if (tb[NL80211_ATTR_VENDOR_DATA]) { 2805 data = nla_data(tb[NL80211_ATTR_VENDOR_DATA]); 2806 len = nla_len(tb[NL80211_ATTR_VENDOR_DATA]); 2807 wpa_hexdump(MSG_MSGDUMP, "nl80211: Vendor data", data, len); 2808 } 2809 2810 wiphy_idx = nl80211_get_wiphy_index(drv->first_bss); 2811 if (wiphy_idx >= 0 && wiphy_idx != (int) wiphy) { 2812 wpa_printf(MSG_DEBUG, "nl80211: Ignore vendor event for foreign wiphy %u (own: %d)", 2813 wiphy, wiphy_idx); 2814 return; 2815 } 2816 2817 switch (vendor_id) { 2818 case OUI_QCA: 2819 nl80211_vendor_event_qca(drv, subcmd, data, len); 2820 break; 2821 default: 2822 wpa_printf(MSG_DEBUG, "nl80211: Ignore unsupported vendor event"); 2823 break; 2824 } 2825} 2826 2827 2828static void do_process_drv_event(struct i802_bss *bss, int cmd, 2829 struct nlattr **tb) 2830{ 2831 struct wpa_driver_nl80211_data *drv = bss->drv; 2832 union wpa_event_data data; 2833 2834 wpa_printf(MSG_DEBUG, "nl80211: Drv Event %d (%s) received for %s", 2835 cmd, nl80211_command_to_string(cmd), bss->ifname); 2836 2837 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED && 2838 (cmd == NL80211_CMD_NEW_SCAN_RESULTS || 2839 cmd == NL80211_CMD_SCAN_ABORTED)) { 2840 wpa_driver_nl80211_set_mode(drv->first_bss, 2841 drv->ap_scan_as_station); 2842 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 2843 } 2844 2845 switch (cmd) { 2846 case NL80211_CMD_TRIGGER_SCAN: 2847 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan trigger"); 2848 drv->scan_state = SCAN_STARTED; 2849 wpa_supplicant_event(drv->ctx, EVENT_SCAN_STARTED, NULL); 2850 break; 2851 case NL80211_CMD_START_SCHED_SCAN: 2852 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan started"); 2853 drv->scan_state = SCHED_SCAN_STARTED; 2854 break; 2855 case NL80211_CMD_SCHED_SCAN_STOPPED: 2856 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan stopped"); 2857 drv->scan_state = SCHED_SCAN_STOPPED; 2858 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL); 2859 break; 2860 case NL80211_CMD_NEW_SCAN_RESULTS: 2861 wpa_dbg(drv->ctx, MSG_DEBUG, 2862 "nl80211: New scan results available"); 2863 drv->scan_state = SCAN_COMPLETED; 2864 drv->scan_complete_events = 1; 2865 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 2866 drv->ctx); 2867 send_scan_event(drv, 0, tb); 2868 break; 2869 case NL80211_CMD_SCHED_SCAN_RESULTS: 2870 wpa_dbg(drv->ctx, MSG_DEBUG, 2871 "nl80211: New sched scan results available"); 2872 drv->scan_state = SCHED_SCAN_RESULTS; 2873 send_scan_event(drv, 0, tb); 2874 break; 2875 case NL80211_CMD_SCAN_ABORTED: 2876 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan aborted"); 2877 drv->scan_state = SCAN_ABORTED; 2878 /* 2879 * Need to indicate that scan results are available in order 2880 * not to make wpa_supplicant stop its scanning. 2881 */ 2882 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 2883 drv->ctx); 2884 send_scan_event(drv, 1, tb); 2885 break; 2886 case NL80211_CMD_AUTHENTICATE: 2887 case NL80211_CMD_ASSOCIATE: 2888 case NL80211_CMD_DEAUTHENTICATE: 2889 case NL80211_CMD_DISASSOCIATE: 2890 case NL80211_CMD_FRAME_TX_STATUS: 2891 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 2892 case NL80211_CMD_UNPROT_DISASSOCIATE: 2893 mlme_event(bss, cmd, tb[NL80211_ATTR_FRAME], 2894 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 2895 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 2896 tb[NL80211_ATTR_COOKIE], 2897 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 2898 break; 2899 case NL80211_CMD_CONNECT: 2900 case NL80211_CMD_ROAM: 2901 mlme_event_connect(drv, cmd, 2902 tb[NL80211_ATTR_STATUS_CODE], 2903 tb[NL80211_ATTR_MAC], 2904 tb[NL80211_ATTR_REQ_IE], 2905 tb[NL80211_ATTR_RESP_IE]); 2906 break; 2907 case NL80211_CMD_CH_SWITCH_NOTIFY: 2908 mlme_event_ch_switch(drv, 2909 tb[NL80211_ATTR_IFINDEX], 2910 tb[NL80211_ATTR_WIPHY_FREQ], 2911 tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE], 2912 tb[NL80211_ATTR_CHANNEL_WIDTH], 2913 tb[NL80211_ATTR_CENTER_FREQ1], 2914 tb[NL80211_ATTR_CENTER_FREQ2]); 2915 break; 2916 case NL80211_CMD_DISCONNECT: 2917 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE], 2918 tb[NL80211_ATTR_MAC], 2919 tb[NL80211_ATTR_DISCONNECTED_BY_AP]); 2920 break; 2921 case NL80211_CMD_MICHAEL_MIC_FAILURE: 2922 mlme_event_michael_mic_failure(bss, tb); 2923 break; 2924 case NL80211_CMD_JOIN_IBSS: 2925 mlme_event_join_ibss(drv, tb); 2926 break; 2927 case NL80211_CMD_REMAIN_ON_CHANNEL: 2928 mlme_event_remain_on_channel(drv, 0, tb); 2929 break; 2930 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL: 2931 mlme_event_remain_on_channel(drv, 1, tb); 2932 break; 2933 case NL80211_CMD_NOTIFY_CQM: 2934 nl80211_cqm_event(drv, tb); 2935 break; 2936 case NL80211_CMD_REG_CHANGE: 2937 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change"); 2938 if (tb[NL80211_ATTR_REG_INITIATOR] == NULL) 2939 break; 2940 os_memset(&data, 0, sizeof(data)); 2941 switch (nla_get_u8(tb[NL80211_ATTR_REG_INITIATOR])) { 2942 case NL80211_REGDOM_SET_BY_CORE: 2943 data.channel_list_changed.initiator = 2944 REGDOM_SET_BY_CORE; 2945 break; 2946 case NL80211_REGDOM_SET_BY_USER: 2947 data.channel_list_changed.initiator = 2948 REGDOM_SET_BY_USER; 2949 break; 2950 case NL80211_REGDOM_SET_BY_DRIVER: 2951 data.channel_list_changed.initiator = 2952 REGDOM_SET_BY_DRIVER; 2953 break; 2954 case NL80211_REGDOM_SET_BY_COUNTRY_IE: 2955 data.channel_list_changed.initiator = 2956 REGDOM_SET_BY_COUNTRY_IE; 2957 break; 2958 default: 2959 wpa_printf(MSG_DEBUG, "nl80211: Unknown reg change initiator %d received", 2960 nla_get_u8(tb[NL80211_ATTR_REG_INITIATOR])); 2961 break; 2962 } 2963 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 2964 &data); 2965 break; 2966 case NL80211_CMD_REG_BEACON_HINT: 2967 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint"); 2968 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 2969 NULL); 2970 break; 2971 case NL80211_CMD_NEW_STATION: 2972 nl80211_new_station_event(drv, tb); 2973 break; 2974 case NL80211_CMD_DEL_STATION: 2975 nl80211_del_station_event(drv, tb); 2976 break; 2977 case NL80211_CMD_SET_REKEY_OFFLOAD: 2978 nl80211_rekey_offload_event(drv, tb); 2979 break; 2980 case NL80211_CMD_PMKSA_CANDIDATE: 2981 nl80211_pmksa_candidate_event(drv, tb); 2982 break; 2983 case NL80211_CMD_PROBE_CLIENT: 2984 nl80211_client_probe_event(drv, tb); 2985 break; 2986 case NL80211_CMD_TDLS_OPER: 2987 nl80211_tdls_oper_event(drv, tb); 2988 break; 2989 case NL80211_CMD_CONN_FAILED: 2990 nl80211_connect_failed_event(drv, tb); 2991 break; 2992 case NL80211_CMD_FT_EVENT: 2993 mlme_event_ft_event(drv, tb); 2994 break; 2995 case NL80211_CMD_RADAR_DETECT: 2996 nl80211_radar_event(drv, tb); 2997 break; 2998 case NL80211_CMD_STOP_AP: 2999 nl80211_stop_ap(drv, tb); 3000 break; 3001 case NL80211_CMD_VENDOR: 3002 nl80211_vendor_event(drv, tb); 3003 break; 3004 default: 3005 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Ignored unknown event " 3006 "(cmd=%d)", cmd); 3007 break; 3008 } 3009} 3010 3011 3012static int process_drv_event(struct nl_msg *msg, void *arg) 3013{ 3014 struct wpa_driver_nl80211_data *drv = arg; 3015 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3016 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3017 struct i802_bss *bss; 3018 int ifidx = -1; 3019 3020 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3021 genlmsg_attrlen(gnlh, 0), NULL); 3022 3023 if (tb[NL80211_ATTR_IFINDEX]) { 3024 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 3025 3026 for (bss = drv->first_bss; bss; bss = bss->next) 3027 if (ifidx == -1 || ifidx == bss->ifindex) { 3028 do_process_drv_event(bss, gnlh->cmd, tb); 3029 return NL_SKIP; 3030 } 3031 wpa_printf(MSG_DEBUG, 3032 "nl80211: Ignored event (cmd=%d) for foreign interface (ifindex %d)", 3033 gnlh->cmd, ifidx); 3034 } else if (tb[NL80211_ATTR_WDEV]) { 3035 u64 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 3036 wpa_printf(MSG_DEBUG, "nl80211: Process event on P2P device"); 3037 for (bss = drv->first_bss; bss; bss = bss->next) { 3038 if (bss->wdev_id_set && wdev_id == bss->wdev_id) { 3039 do_process_drv_event(bss, gnlh->cmd, tb); 3040 return NL_SKIP; 3041 } 3042 } 3043 wpa_printf(MSG_DEBUG, 3044 "nl80211: Ignored event (cmd=%d) for foreign interface (wdev 0x%llx)", 3045 gnlh->cmd, (long long unsigned int) wdev_id); 3046 } 3047 3048 return NL_SKIP; 3049} 3050 3051 3052static int process_global_event(struct nl_msg *msg, void *arg) 3053{ 3054 struct nl80211_global *global = arg; 3055 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3056 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3057 struct wpa_driver_nl80211_data *drv, *tmp; 3058 int ifidx = -1; 3059 struct i802_bss *bss; 3060 u64 wdev_id = 0; 3061 int wdev_id_set = 0; 3062 3063 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3064 genlmsg_attrlen(gnlh, 0), NULL); 3065 3066 if (tb[NL80211_ATTR_IFINDEX]) 3067 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 3068 else if (tb[NL80211_ATTR_WDEV]) { 3069 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 3070 wdev_id_set = 1; 3071 } 3072 3073 dl_list_for_each_safe(drv, tmp, &global->interfaces, 3074 struct wpa_driver_nl80211_data, list) { 3075 for (bss = drv->first_bss; bss; bss = bss->next) { 3076 if ((ifidx == -1 && !wdev_id_set) || 3077 ifidx == bss->ifindex || 3078 (wdev_id_set && bss->wdev_id_set && 3079 wdev_id == bss->wdev_id)) { 3080 do_process_drv_event(bss, gnlh->cmd, tb); 3081 return NL_SKIP; 3082 } 3083 } 3084 } 3085 3086 return NL_SKIP; 3087} 3088 3089 3090static int process_bss_event(struct nl_msg *msg, void *arg) 3091{ 3092 struct i802_bss *bss = arg; 3093 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3094 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3095 3096 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3097 genlmsg_attrlen(gnlh, 0), NULL); 3098 3099 wpa_printf(MSG_DEBUG, "nl80211: BSS Event %d (%s) received for %s", 3100 gnlh->cmd, nl80211_command_to_string(gnlh->cmd), 3101 bss->ifname); 3102 3103 switch (gnlh->cmd) { 3104 case NL80211_CMD_FRAME: 3105 case NL80211_CMD_FRAME_TX_STATUS: 3106 mlme_event(bss, gnlh->cmd, tb[NL80211_ATTR_FRAME], 3107 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 3108 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 3109 tb[NL80211_ATTR_COOKIE], 3110 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 3111 break; 3112 case NL80211_CMD_UNEXPECTED_FRAME: 3113 nl80211_spurious_frame(bss, tb, 0); 3114 break; 3115 case NL80211_CMD_UNEXPECTED_4ADDR_FRAME: 3116 nl80211_spurious_frame(bss, tb, 1); 3117 break; 3118 default: 3119 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event " 3120 "(cmd=%d)", gnlh->cmd); 3121 break; 3122 } 3123 3124 return NL_SKIP; 3125} 3126 3127 3128static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx, 3129 void *handle) 3130{ 3131 struct nl_cb *cb = eloop_ctx; 3132 int res; 3133 3134 wpa_printf(MSG_MSGDUMP, "nl80211: Event message available"); 3135 3136 res = nl_recvmsgs(handle, cb); 3137 if (res) { 3138 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d", 3139 __func__, res); 3140 } 3141} 3142 3143 3144/** 3145 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain 3146 * @priv: driver_nl80211 private data 3147 * @alpha2_arg: country to which to switch to 3148 * Returns: 0 on success, -1 on failure 3149 * 3150 * This asks nl80211 to set the regulatory domain for given 3151 * country ISO / IEC alpha2. 3152 */ 3153static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg) 3154{ 3155 struct i802_bss *bss = priv; 3156 struct wpa_driver_nl80211_data *drv = bss->drv; 3157 char alpha2[3]; 3158 struct nl_msg *msg; 3159 3160 msg = nlmsg_alloc(); 3161 if (!msg) 3162 return -ENOMEM; 3163 3164 alpha2[0] = alpha2_arg[0]; 3165 alpha2[1] = alpha2_arg[1]; 3166 alpha2[2] = '\0'; 3167 3168 nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG); 3169 3170 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2); 3171 if (send_and_recv_msgs(drv, msg, NULL, NULL)) 3172 return -EINVAL; 3173 return 0; 3174nla_put_failure: 3175 nlmsg_free(msg); 3176 return -EINVAL; 3177} 3178 3179 3180static int nl80211_get_country(struct nl_msg *msg, void *arg) 3181{ 3182 char *alpha2 = arg; 3183 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 3184 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3185 3186 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3187 genlmsg_attrlen(gnlh, 0), NULL); 3188 if (!tb_msg[NL80211_ATTR_REG_ALPHA2]) { 3189 wpa_printf(MSG_DEBUG, "nl80211: No country information available"); 3190 return NL_SKIP; 3191 } 3192 os_strlcpy(alpha2, nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]), 3); 3193 return NL_SKIP; 3194} 3195 3196 3197static int wpa_driver_nl80211_get_country(void *priv, char *alpha2) 3198{ 3199 struct i802_bss *bss = priv; 3200 struct wpa_driver_nl80211_data *drv = bss->drv; 3201 struct nl_msg *msg; 3202 int ret; 3203 3204 msg = nlmsg_alloc(); 3205 if (!msg) 3206 return -ENOMEM; 3207 3208 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 3209 alpha2[0] = '\0'; 3210 ret = send_and_recv_msgs(drv, msg, nl80211_get_country, alpha2); 3211 if (!alpha2[0]) 3212 ret = -1; 3213 3214 return ret; 3215} 3216 3217 3218static int protocol_feature_handler(struct nl_msg *msg, void *arg) 3219{ 3220 u32 *feat = arg; 3221 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 3222 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3223 3224 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3225 genlmsg_attrlen(gnlh, 0), NULL); 3226 3227 if (tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]) 3228 *feat = nla_get_u32(tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]); 3229 3230 return NL_SKIP; 3231} 3232 3233 3234static u32 get_nl80211_protocol_features(struct wpa_driver_nl80211_data *drv) 3235{ 3236 u32 feat = 0; 3237 struct nl_msg *msg; 3238 3239 msg = nlmsg_alloc(); 3240 if (!msg) 3241 goto nla_put_failure; 3242 3243 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_PROTOCOL_FEATURES); 3244 if (send_and_recv_msgs(drv, msg, protocol_feature_handler, &feat) == 0) 3245 return feat; 3246 3247 msg = NULL; 3248nla_put_failure: 3249 nlmsg_free(msg); 3250 return 0; 3251} 3252 3253 3254struct wiphy_info_data { 3255 struct wpa_driver_nl80211_data *drv; 3256 struct wpa_driver_capa *capa; 3257 3258 unsigned int num_multichan_concurrent; 3259 3260 unsigned int error:1; 3261 unsigned int device_ap_sme:1; 3262 unsigned int poll_command_supported:1; 3263 unsigned int data_tx_status:1; 3264 unsigned int monitor_supported:1; 3265 unsigned int auth_supported:1; 3266 unsigned int connect_supported:1; 3267 unsigned int p2p_go_supported:1; 3268 unsigned int p2p_client_supported:1; 3269 unsigned int p2p_concurrent:1; 3270 unsigned int channel_switch_supported:1; 3271 unsigned int set_qos_map_supported:1; 3272}; 3273 3274 3275static unsigned int probe_resp_offload_support(int supp_protocols) 3276{ 3277 unsigned int prot = 0; 3278 3279 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS) 3280 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS; 3281 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2) 3282 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2; 3283 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P) 3284 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P; 3285 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U) 3286 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING; 3287 3288 return prot; 3289} 3290 3291 3292static void wiphy_info_supported_iftypes(struct wiphy_info_data *info, 3293 struct nlattr *tb) 3294{ 3295 struct nlattr *nl_mode; 3296 int i; 3297 3298 if (tb == NULL) 3299 return; 3300 3301 nla_for_each_nested(nl_mode, tb, i) { 3302 switch (nla_type(nl_mode)) { 3303 case NL80211_IFTYPE_AP: 3304 info->capa->flags |= WPA_DRIVER_FLAGS_AP; 3305 break; 3306 case NL80211_IFTYPE_ADHOC: 3307 info->capa->flags |= WPA_DRIVER_FLAGS_IBSS; 3308 break; 3309 case NL80211_IFTYPE_P2P_DEVICE: 3310 info->capa->flags |= 3311 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 3312 break; 3313 case NL80211_IFTYPE_P2P_GO: 3314 info->p2p_go_supported = 1; 3315 break; 3316 case NL80211_IFTYPE_P2P_CLIENT: 3317 info->p2p_client_supported = 1; 3318 break; 3319 case NL80211_IFTYPE_MONITOR: 3320 info->monitor_supported = 1; 3321 break; 3322 } 3323 } 3324} 3325 3326 3327static int wiphy_info_iface_comb_process(struct wiphy_info_data *info, 3328 struct nlattr *nl_combi) 3329{ 3330 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB]; 3331 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT]; 3332 struct nlattr *nl_limit, *nl_mode; 3333 int err, rem_limit, rem_mode; 3334 int combination_has_p2p = 0, combination_has_mgd = 0; 3335 static struct nla_policy 3336 iface_combination_policy[NUM_NL80211_IFACE_COMB] = { 3337 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED }, 3338 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 }, 3339 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG }, 3340 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 }, 3341 [NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 }, 3342 }, 3343 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = { 3344 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED }, 3345 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 }, 3346 }; 3347 3348 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB, 3349 nl_combi, iface_combination_policy); 3350 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] || 3351 !tb_comb[NL80211_IFACE_COMB_MAXNUM] || 3352 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) 3353 return 0; /* broken combination */ 3354 3355 if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS]) 3356 info->capa->flags |= WPA_DRIVER_FLAGS_RADAR; 3357 3358 nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS], 3359 rem_limit) { 3360 err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT, 3361 nl_limit, iface_limit_policy); 3362 if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES]) 3363 return 0; /* broken combination */ 3364 3365 nla_for_each_nested(nl_mode, 3366 tb_limit[NL80211_IFACE_LIMIT_TYPES], 3367 rem_mode) { 3368 int ift = nla_type(nl_mode); 3369 if (ift == NL80211_IFTYPE_P2P_GO || 3370 ift == NL80211_IFTYPE_P2P_CLIENT) 3371 combination_has_p2p = 1; 3372 if (ift == NL80211_IFTYPE_STATION) 3373 combination_has_mgd = 1; 3374 } 3375 if (combination_has_p2p && combination_has_mgd) 3376 break; 3377 } 3378 3379 if (combination_has_p2p && combination_has_mgd) { 3380 info->p2p_concurrent = 1; 3381 info->num_multichan_concurrent = 3382 nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]); 3383 return 1; 3384 } 3385 3386 return 0; 3387} 3388 3389 3390static void wiphy_info_iface_comb(struct wiphy_info_data *info, 3391 struct nlattr *tb) 3392{ 3393 struct nlattr *nl_combi; 3394 int rem_combi; 3395 3396 if (tb == NULL) 3397 return; 3398 3399 nla_for_each_nested(nl_combi, tb, rem_combi) { 3400 if (wiphy_info_iface_comb_process(info, nl_combi) > 0) 3401 break; 3402 } 3403} 3404 3405 3406static void wiphy_info_supp_cmds(struct wiphy_info_data *info, 3407 struct nlattr *tb) 3408{ 3409 struct nlattr *nl_cmd; 3410 int i; 3411 3412 if (tb == NULL) 3413 return; 3414 3415 nla_for_each_nested(nl_cmd, tb, i) { 3416 switch (nla_get_u32(nl_cmd)) { 3417 case NL80211_CMD_AUTHENTICATE: 3418 info->auth_supported = 1; 3419 break; 3420 case NL80211_CMD_CONNECT: 3421 info->connect_supported = 1; 3422 break; 3423 case NL80211_CMD_START_SCHED_SCAN: 3424 info->capa->sched_scan_supported = 1; 3425 break; 3426 case NL80211_CMD_PROBE_CLIENT: 3427 info->poll_command_supported = 1; 3428 break; 3429 case NL80211_CMD_CHANNEL_SWITCH: 3430 info->channel_switch_supported = 1; 3431 break; 3432 case NL80211_CMD_SET_QOS_MAP: 3433 info->set_qos_map_supported = 1; 3434 break; 3435 } 3436 } 3437} 3438 3439 3440static void wiphy_info_cipher_suites(struct wiphy_info_data *info, 3441 struct nlattr *tb) 3442{ 3443 int i, num; 3444 u32 *ciphers; 3445 3446 if (tb == NULL) 3447 return; 3448 3449 num = nla_len(tb) / sizeof(u32); 3450 ciphers = nla_data(tb); 3451 for (i = 0; i < num; i++) { 3452 u32 c = ciphers[i]; 3453 3454 wpa_printf(MSG_DEBUG, "nl80211: Supported cipher %02x-%02x-%02x:%d", 3455 c >> 24, (c >> 16) & 0xff, 3456 (c >> 8) & 0xff, c & 0xff); 3457 switch (c) { 3458 case WLAN_CIPHER_SUITE_CCMP_256: 3459 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP_256; 3460 break; 3461 case WLAN_CIPHER_SUITE_GCMP_256: 3462 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP_256; 3463 break; 3464 case WLAN_CIPHER_SUITE_CCMP: 3465 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP; 3466 break; 3467 case WLAN_CIPHER_SUITE_GCMP: 3468 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP; 3469 break; 3470 case WLAN_CIPHER_SUITE_TKIP: 3471 info->capa->enc |= WPA_DRIVER_CAPA_ENC_TKIP; 3472 break; 3473 case WLAN_CIPHER_SUITE_WEP104: 3474 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP104; 3475 break; 3476 case WLAN_CIPHER_SUITE_WEP40: 3477 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP40; 3478 break; 3479 case WLAN_CIPHER_SUITE_AES_CMAC: 3480 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP; 3481 break; 3482 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 3483 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_128; 3484 break; 3485 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 3486 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_256; 3487 break; 3488 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 3489 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_CMAC_256; 3490 break; 3491 } 3492 } 3493} 3494 3495 3496static void wiphy_info_max_roc(struct wpa_driver_capa *capa, 3497 struct nlattr *tb) 3498{ 3499 if (tb) 3500 capa->max_remain_on_chan = nla_get_u32(tb); 3501} 3502 3503 3504static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls, 3505 struct nlattr *ext_setup) 3506{ 3507 if (tdls == NULL) 3508 return; 3509 3510 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported"); 3511 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT; 3512 3513 if (ext_setup) { 3514 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup"); 3515 capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP; 3516 } 3517} 3518 3519 3520static void wiphy_info_feature_flags(struct wiphy_info_data *info, 3521 struct nlattr *tb) 3522{ 3523 u32 flags; 3524 struct wpa_driver_capa *capa = info->capa; 3525 3526 if (tb == NULL) 3527 return; 3528 3529 flags = nla_get_u32(tb); 3530 3531 if (flags & NL80211_FEATURE_SK_TX_STATUS) 3532 info->data_tx_status = 1; 3533 3534 if (flags & NL80211_FEATURE_INACTIVITY_TIMER) 3535 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER; 3536 3537 if (flags & NL80211_FEATURE_SAE) 3538 capa->flags |= WPA_DRIVER_FLAGS_SAE; 3539 3540 if (flags & NL80211_FEATURE_NEED_OBSS_SCAN) 3541 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN; 3542} 3543 3544 3545static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa, 3546 struct nlattr *tb) 3547{ 3548 u32 protocols; 3549 3550 if (tb == NULL) 3551 return; 3552 3553 protocols = nla_get_u32(tb); 3554 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP " 3555 "mode"); 3556 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD; 3557 capa->probe_resp_offloads = probe_resp_offload_support(protocols); 3558} 3559 3560 3561static int wiphy_info_handler(struct nl_msg *msg, void *arg) 3562{ 3563 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3564 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3565 struct wiphy_info_data *info = arg; 3566 struct wpa_driver_capa *capa = info->capa; 3567 struct wpa_driver_nl80211_data *drv = info->drv; 3568 3569 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3570 genlmsg_attrlen(gnlh, 0), NULL); 3571 3572 if (tb[NL80211_ATTR_WIPHY_NAME]) 3573 os_strlcpy(drv->phyname, 3574 nla_get_string(tb[NL80211_ATTR_WIPHY_NAME]), 3575 sizeof(drv->phyname)); 3576 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]) 3577 capa->max_scan_ssids = 3578 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]); 3579 3580 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]) 3581 capa->max_sched_scan_ssids = 3582 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]); 3583 3584 if (tb[NL80211_ATTR_MAX_MATCH_SETS]) 3585 capa->max_match_sets = 3586 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]); 3587 3588 if (tb[NL80211_ATTR_MAC_ACL_MAX]) 3589 capa->max_acl_mac_addrs = 3590 nla_get_u8(tb[NL80211_ATTR_MAC_ACL_MAX]); 3591 3592 wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]); 3593 wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]); 3594 wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]); 3595 wiphy_info_cipher_suites(info, tb[NL80211_ATTR_CIPHER_SUITES]); 3596 3597 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) { 3598 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based " 3599 "off-channel TX"); 3600 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX; 3601 } 3602 3603 if (tb[NL80211_ATTR_ROAM_SUPPORT]) { 3604 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming"); 3605 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION; 3606 } 3607 3608 wiphy_info_max_roc(capa, 3609 tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]); 3610 3611 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD]) 3612 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD; 3613 3614 wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT], 3615 tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]); 3616 3617 if (tb[NL80211_ATTR_DEVICE_AP_SME]) 3618 info->device_ap_sme = 1; 3619 3620 wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]); 3621 wiphy_info_probe_resp_offload(capa, 3622 tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]); 3623 3624 if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] && 3625 drv->extended_capa == NULL) { 3626 drv->extended_capa = 3627 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3628 if (drv->extended_capa) { 3629 os_memcpy(drv->extended_capa, 3630 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 3631 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3632 drv->extended_capa_len = 3633 nla_len(tb[NL80211_ATTR_EXT_CAPA]); 3634 } 3635 drv->extended_capa_mask = 3636 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3637 if (drv->extended_capa_mask) { 3638 os_memcpy(drv->extended_capa_mask, 3639 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 3640 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3641 } else { 3642 os_free(drv->extended_capa); 3643 drv->extended_capa = NULL; 3644 drv->extended_capa_len = 0; 3645 } 3646 } 3647 3648 if (tb[NL80211_ATTR_VENDOR_DATA]) { 3649 struct nlattr *nl; 3650 int rem; 3651 3652 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_DATA], rem) { 3653 struct nl80211_vendor_cmd_info *vinfo; 3654 if (nla_len(nl) != sizeof(*vinfo)) { 3655 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info"); 3656 continue; 3657 } 3658 vinfo = nla_data(nl); 3659 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor command: vendor_id=0x%x subcmd=%u", 3660 vinfo->vendor_id, vinfo->subcmd); 3661 } 3662 } 3663 3664 if (tb[NL80211_ATTR_VENDOR_EVENTS]) { 3665 struct nlattr *nl; 3666 int rem; 3667 3668 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_EVENTS], rem) { 3669 struct nl80211_vendor_cmd_info *vinfo; 3670 if (nla_len(nl) != sizeof(*vinfo)) { 3671 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info"); 3672 continue; 3673 } 3674 vinfo = nla_data(nl); 3675 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor event: vendor_id=0x%x subcmd=%u", 3676 vinfo->vendor_id, vinfo->subcmd); 3677 } 3678 } 3679 3680 return NL_SKIP; 3681} 3682 3683 3684static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv, 3685 struct wiphy_info_data *info) 3686{ 3687 u32 feat; 3688 struct nl_msg *msg; 3689 3690 os_memset(info, 0, sizeof(*info)); 3691 info->capa = &drv->capa; 3692 info->drv = drv; 3693 3694 msg = nlmsg_alloc(); 3695 if (!msg) 3696 return -1; 3697 3698 feat = get_nl80211_protocol_features(drv); 3699 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 3700 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 3701 else 3702 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 3703 3704 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 3705 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 3706 goto nla_put_failure; 3707 3708 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info)) 3709 return -1; 3710 3711 if (info->auth_supported) 3712 drv->capa.flags |= WPA_DRIVER_FLAGS_SME; 3713 else if (!info->connect_supported) { 3714 wpa_printf(MSG_INFO, "nl80211: Driver does not support " 3715 "authentication/association or connect commands"); 3716 info->error = 1; 3717 } 3718 3719 if (info->p2p_go_supported && info->p2p_client_supported) 3720 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE; 3721 if (info->p2p_concurrent) { 3722 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 3723 "interface (driver advertised support)"); 3724 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 3725 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 3726 } 3727 if (info->num_multichan_concurrent > 1) { 3728 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel " 3729 "concurrent (driver advertised support)"); 3730 drv->capa.num_multichan_concurrent = 3731 info->num_multichan_concurrent; 3732 } 3733 3734 /* default to 5000 since early versions of mac80211 don't set it */ 3735 if (!drv->capa.max_remain_on_chan) 3736 drv->capa.max_remain_on_chan = 5000; 3737 3738 if (info->channel_switch_supported) 3739 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_CSA; 3740 3741 return 0; 3742nla_put_failure: 3743 nlmsg_free(msg); 3744 return -1; 3745} 3746 3747 3748static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv) 3749{ 3750 struct wiphy_info_data info; 3751 if (wpa_driver_nl80211_get_info(drv, &info)) 3752 return -1; 3753 3754 if (info.error) 3755 return -1; 3756 3757 drv->has_capability = 1; 3758 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA | 3759 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK | 3760 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 | 3761 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK; 3762 drv->capa.auth = WPA_DRIVER_AUTH_OPEN | 3763 WPA_DRIVER_AUTH_SHARED | 3764 WPA_DRIVER_AUTH_LEAP; 3765 3766 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES; 3767 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE; 3768 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3769 3770 if (!info.device_ap_sme) { 3771 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS; 3772 3773 /* 3774 * No AP SME is currently assumed to also indicate no AP MLME 3775 * in the driver/firmware. 3776 */ 3777 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME; 3778 } 3779 3780 drv->device_ap_sme = info.device_ap_sme; 3781 drv->poll_command_supported = info.poll_command_supported; 3782 drv->data_tx_status = info.data_tx_status; 3783 if (info.set_qos_map_supported) 3784 drv->capa.flags |= WPA_DRIVER_FLAGS_QOS_MAPPING; 3785 3786 /* 3787 * If poll command and tx status are supported, mac80211 is new enough 3788 * to have everything we need to not need monitor interfaces. 3789 */ 3790 drv->use_monitor = !info.poll_command_supported || !info.data_tx_status; 3791 3792 if (drv->device_ap_sme && drv->use_monitor) { 3793 /* 3794 * Non-mac80211 drivers may not support monitor interface. 3795 * Make sure we do not get stuck with incorrect capability here 3796 * by explicitly testing this. 3797 */ 3798 if (!info.monitor_supported) { 3799 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor " 3800 "with device_ap_sme since no monitor mode " 3801 "support detected"); 3802 drv->use_monitor = 0; 3803 } 3804 } 3805 3806 /* 3807 * If we aren't going to use monitor interfaces, but the 3808 * driver doesn't support data TX status, we won't get TX 3809 * status for EAPOL frames. 3810 */ 3811 if (!drv->use_monitor && !info.data_tx_status) 3812 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3813 3814 return 0; 3815} 3816 3817 3818#ifdef ANDROID 3819static int android_genl_ctrl_resolve(struct nl_handle *handle, 3820 const char *name) 3821{ 3822 /* 3823 * Android ICS has very minimal genl_ctrl_resolve() implementation, so 3824 * need to work around that. 3825 */ 3826 struct nl_cache *cache = NULL; 3827 struct genl_family *nl80211 = NULL; 3828 int id = -1; 3829 3830 if (genl_ctrl_alloc_cache(handle, &cache) < 0) { 3831 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic " 3832 "netlink cache"); 3833 goto fail; 3834 } 3835 3836 nl80211 = genl_ctrl_search_by_name(cache, name); 3837 if (nl80211 == NULL) 3838 goto fail; 3839 3840 id = genl_family_get_id(nl80211); 3841 3842fail: 3843 if (nl80211) 3844 genl_family_put(nl80211); 3845 if (cache) 3846 nl_cache_free(cache); 3847 3848 return id; 3849} 3850#define genl_ctrl_resolve android_genl_ctrl_resolve 3851#endif /* ANDROID */ 3852 3853 3854static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global) 3855{ 3856 int ret; 3857 3858 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3859 if (global->nl_cb == NULL) { 3860 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " 3861 "callbacks"); 3862 return -1; 3863 } 3864 3865 global->nl = nl_create_handle(global->nl_cb, "nl"); 3866 if (global->nl == NULL) 3867 goto err; 3868 3869 global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211"); 3870 if (global->nl80211_id < 0) { 3871 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not " 3872 "found"); 3873 goto err; 3874 } 3875 3876 global->nl_event = nl_create_handle(global->nl_cb, "event"); 3877 if (global->nl_event == NULL) 3878 goto err; 3879 3880 ret = nl_get_multicast_id(global, "nl80211", "scan"); 3881 if (ret >= 0) 3882 ret = nl_socket_add_membership(global->nl_event, ret); 3883 if (ret < 0) { 3884 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 3885 "membership for scan events: %d (%s)", 3886 ret, strerror(-ret)); 3887 goto err; 3888 } 3889 3890 ret = nl_get_multicast_id(global, "nl80211", "mlme"); 3891 if (ret >= 0) 3892 ret = nl_socket_add_membership(global->nl_event, ret); 3893 if (ret < 0) { 3894 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 3895 "membership for mlme events: %d (%s)", 3896 ret, strerror(-ret)); 3897 goto err; 3898 } 3899 3900 ret = nl_get_multicast_id(global, "nl80211", "regulatory"); 3901 if (ret >= 0) 3902 ret = nl_socket_add_membership(global->nl_event, ret); 3903 if (ret < 0) { 3904 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " 3905 "membership for regulatory events: %d (%s)", 3906 ret, strerror(-ret)); 3907 /* Continue without regulatory events */ 3908 } 3909 3910 ret = nl_get_multicast_id(global, "nl80211", "vendor"); 3911 if (ret >= 0) 3912 ret = nl_socket_add_membership(global->nl_event, ret); 3913 if (ret < 0) { 3914 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " 3915 "membership for vendor events: %d (%s)", 3916 ret, strerror(-ret)); 3917 /* Continue without vendor events */ 3918 } 3919 3920 nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3921 no_seq_check, NULL); 3922 nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3923 process_global_event, global); 3924 3925 nl80211_register_eloop_read(&global->nl_event, 3926 wpa_driver_nl80211_event_receive, 3927 global->nl_cb); 3928 3929 return 0; 3930 3931err: 3932 nl_destroy_handles(&global->nl_event); 3933 nl_destroy_handles(&global->nl); 3934 nl_cb_put(global->nl_cb); 3935 global->nl_cb = NULL; 3936 return -1; 3937} 3938 3939 3940static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv) 3941{ 3942 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3943 if (!drv->nl_cb) { 3944 wpa_printf(MSG_ERROR, "nl80211: Failed to alloc cb struct"); 3945 return -1; 3946 } 3947 3948 nl_cb_set(drv->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3949 no_seq_check, NULL); 3950 nl_cb_set(drv->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3951 process_drv_event, drv); 3952 3953 return 0; 3954} 3955 3956 3957static void wpa_driver_nl80211_rfkill_blocked(void *ctx) 3958{ 3959 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked"); 3960 /* 3961 * This may be for any interface; use ifdown event to disable 3962 * interface. 3963 */ 3964} 3965 3966 3967static void wpa_driver_nl80211_rfkill_unblocked(void *ctx) 3968{ 3969 struct wpa_driver_nl80211_data *drv = ctx; 3970 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked"); 3971 if (i802_set_iface_flags(drv->first_bss, 1)) { 3972 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP " 3973 "after rfkill unblock"); 3974 return; 3975 } 3976 /* rtnetlink ifup handler will report interface as enabled */ 3977} 3978 3979 3980static void wpa_driver_nl80211_handle_eapol_tx_status(int sock, 3981 void *eloop_ctx, 3982 void *handle) 3983{ 3984 struct wpa_driver_nl80211_data *drv = eloop_ctx; 3985 u8 data[2048]; 3986 struct msghdr msg; 3987 struct iovec entry; 3988 u8 control[512]; 3989 struct cmsghdr *cmsg; 3990 int res, found_ee = 0, found_wifi = 0, acked = 0; 3991 union wpa_event_data event; 3992 3993 memset(&msg, 0, sizeof(msg)); 3994 msg.msg_iov = &entry; 3995 msg.msg_iovlen = 1; 3996 entry.iov_base = data; 3997 entry.iov_len = sizeof(data); 3998 msg.msg_control = &control; 3999 msg.msg_controllen = sizeof(control); 4000 4001 res = recvmsg(sock, &msg, MSG_ERRQUEUE); 4002 /* if error or not fitting 802.3 header, return */ 4003 if (res < 14) 4004 return; 4005 4006 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) 4007 { 4008 if (cmsg->cmsg_level == SOL_SOCKET && 4009 cmsg->cmsg_type == SCM_WIFI_STATUS) { 4010 int *ack; 4011 4012 found_wifi = 1; 4013 ack = (void *)CMSG_DATA(cmsg); 4014 acked = *ack; 4015 } 4016 4017 if (cmsg->cmsg_level == SOL_PACKET && 4018 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) { 4019 struct sock_extended_err *err = 4020 (struct sock_extended_err *)CMSG_DATA(cmsg); 4021 4022 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS) 4023 found_ee = 1; 4024 } 4025 } 4026 4027 if (!found_ee || !found_wifi) 4028 return; 4029 4030 memset(&event, 0, sizeof(event)); 4031 event.eapol_tx_status.dst = data; 4032 event.eapol_tx_status.data = data + 14; 4033 event.eapol_tx_status.data_len = res - 14; 4034 event.eapol_tx_status.ack = acked; 4035 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event); 4036} 4037 4038 4039static int nl80211_init_bss(struct i802_bss *bss) 4040{ 4041 bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 4042 if (!bss->nl_cb) 4043 return -1; 4044 4045 nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 4046 no_seq_check, NULL); 4047 nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 4048 process_bss_event, bss); 4049 4050 return 0; 4051} 4052 4053 4054static void nl80211_destroy_bss(struct i802_bss *bss) 4055{ 4056 nl_cb_put(bss->nl_cb); 4057 bss->nl_cb = NULL; 4058} 4059 4060 4061static void * wpa_driver_nl80211_drv_init(void *ctx, const char *ifname, 4062 void *global_priv, int hostapd, 4063 const u8 *set_addr) 4064{ 4065 struct wpa_driver_nl80211_data *drv; 4066 struct rfkill_config *rcfg; 4067 struct i802_bss *bss; 4068 4069 if (global_priv == NULL) 4070 return NULL; 4071 drv = os_zalloc(sizeof(*drv)); 4072 if (drv == NULL) 4073 return NULL; 4074 drv->global = global_priv; 4075 drv->ctx = ctx; 4076 drv->hostapd = !!hostapd; 4077 drv->eapol_sock = -1; 4078 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int); 4079 drv->if_indices = drv->default_if_indices; 4080 4081 drv->first_bss = os_zalloc(sizeof(*drv->first_bss)); 4082 if (!drv->first_bss) { 4083 os_free(drv); 4084 return NULL; 4085 } 4086 bss = drv->first_bss; 4087 bss->drv = drv; 4088 bss->ctx = ctx; 4089 4090 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname)); 4091 drv->monitor_ifidx = -1; 4092 drv->monitor_sock = -1; 4093 drv->eapol_tx_sock = -1; 4094 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 4095 4096 if (wpa_driver_nl80211_init_nl(drv)) { 4097 os_free(drv); 4098 return NULL; 4099 } 4100 4101 if (nl80211_init_bss(bss)) 4102 goto failed; 4103 4104 rcfg = os_zalloc(sizeof(*rcfg)); 4105 if (rcfg == NULL) 4106 goto failed; 4107 rcfg->ctx = drv; 4108 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname)); 4109 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked; 4110 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked; 4111 drv->rfkill = rfkill_init(rcfg); 4112 if (drv->rfkill == NULL) { 4113 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available"); 4114 os_free(rcfg); 4115 } 4116 4117 if (linux_iface_up(drv->global->ioctl_sock, ifname) > 0) 4118 drv->start_iface_up = 1; 4119 4120 if (wpa_driver_nl80211_finish_drv_init(drv, set_addr, 1)) 4121 goto failed; 4122 4123 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0); 4124 if (drv->eapol_tx_sock < 0) 4125 goto failed; 4126 4127 if (drv->data_tx_status) { 4128 int enabled = 1; 4129 4130 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS, 4131 &enabled, sizeof(enabled)) < 0) { 4132 wpa_printf(MSG_DEBUG, 4133 "nl80211: wifi status sockopt failed\n"); 4134 drv->data_tx_status = 0; 4135 if (!drv->use_monitor) 4136 drv->capa.flags &= 4137 ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 4138 } else { 4139 eloop_register_read_sock(drv->eapol_tx_sock, 4140 wpa_driver_nl80211_handle_eapol_tx_status, 4141 drv, NULL); 4142 } 4143 } 4144 4145 if (drv->global) { 4146 dl_list_add(&drv->global->interfaces, &drv->list); 4147 drv->in_interface_list = 1; 4148 } 4149 4150 return bss; 4151 4152failed: 4153 wpa_driver_nl80211_deinit(bss); 4154 return NULL; 4155} 4156 4157 4158/** 4159 * wpa_driver_nl80211_init - Initialize nl80211 driver interface 4160 * @ctx: context to be used when calling wpa_supplicant functions, 4161 * e.g., wpa_supplicant_event() 4162 * @ifname: interface name, e.g., wlan0 4163 * @global_priv: private driver global data from global_init() 4164 * Returns: Pointer to private data, %NULL on failure 4165 */ 4166static void * wpa_driver_nl80211_init(void *ctx, const char *ifname, 4167 void *global_priv) 4168{ 4169 return wpa_driver_nl80211_drv_init(ctx, ifname, global_priv, 0, NULL); 4170} 4171 4172 4173static int nl80211_register_frame(struct i802_bss *bss, 4174 struct nl_handle *nl_handle, 4175 u16 type, const u8 *match, size_t match_len) 4176{ 4177 struct wpa_driver_nl80211_data *drv = bss->drv; 4178 struct nl_msg *msg; 4179 int ret = -1; 4180 char buf[30]; 4181 4182 msg = nlmsg_alloc(); 4183 if (!msg) 4184 return -1; 4185 4186 buf[0] = '\0'; 4187 wpa_snprintf_hex(buf, sizeof(buf), match, match_len); 4188 wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x nl_handle=%p match=%s", 4189 type, nl_handle, buf); 4190 4191 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION); 4192 4193 if (nl80211_set_iface_id(msg, bss) < 0) 4194 goto nla_put_failure; 4195 4196 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type); 4197 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match); 4198 4199 ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL); 4200 msg = NULL; 4201 if (ret) { 4202 wpa_printf(MSG_DEBUG, "nl80211: Register frame command " 4203 "failed (type=%u): ret=%d (%s)", 4204 type, ret, strerror(-ret)); 4205 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", 4206 match, match_len); 4207 goto nla_put_failure; 4208 } 4209 ret = 0; 4210nla_put_failure: 4211 nlmsg_free(msg); 4212 return ret; 4213} 4214 4215 4216static int nl80211_alloc_mgmt_handle(struct i802_bss *bss) 4217{ 4218 struct wpa_driver_nl80211_data *drv = bss->drv; 4219 4220 if (bss->nl_mgmt) { 4221 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting " 4222 "already on! (nl_mgmt=%p)", bss->nl_mgmt); 4223 return -1; 4224 } 4225 4226 bss->nl_mgmt = nl_create_handle(drv->nl_cb, "mgmt"); 4227 if (bss->nl_mgmt == NULL) 4228 return -1; 4229 4230 return 0; 4231} 4232 4233 4234static void nl80211_mgmt_handle_register_eloop(struct i802_bss *bss) 4235{ 4236 nl80211_register_eloop_read(&bss->nl_mgmt, 4237 wpa_driver_nl80211_event_receive, 4238 bss->nl_cb); 4239} 4240 4241 4242static int nl80211_register_action_frame(struct i802_bss *bss, 4243 const u8 *match, size_t match_len) 4244{ 4245 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4); 4246 return nl80211_register_frame(bss, bss->nl_mgmt, 4247 type, match, match_len); 4248} 4249 4250 4251static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss) 4252{ 4253 struct wpa_driver_nl80211_data *drv = bss->drv; 4254 int ret = 0; 4255 4256 if (nl80211_alloc_mgmt_handle(bss)) 4257 return -1; 4258 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP " 4259 "handle %p", bss->nl_mgmt); 4260 4261 if (drv->nlmode == NL80211_IFTYPE_ADHOC) { 4262 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_AUTH << 4); 4263 4264 /* register for any AUTH message */ 4265 nl80211_register_frame(bss, bss->nl_mgmt, type, NULL, 0); 4266 } 4267 4268#ifdef CONFIG_INTERWORKING 4269 /* QoS Map Configure */ 4270 if (nl80211_register_action_frame(bss, (u8 *) "\x01\x04", 2) < 0) 4271 ret = -1; 4272#endif /* CONFIG_INTERWORKING */ 4273#if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING) 4274 /* GAS Initial Request */ 4275 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0) 4276 ret = -1; 4277 /* GAS Initial Response */ 4278 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0) 4279 ret = -1; 4280 /* GAS Comeback Request */ 4281 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0) 4282 ret = -1; 4283 /* GAS Comeback Response */ 4284 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0) 4285 ret = -1; 4286 /* Protected GAS Initial Request */ 4287 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0a", 2) < 0) 4288 ret = -1; 4289 /* Protected GAS Initial Response */ 4290 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0b", 2) < 0) 4291 ret = -1; 4292 /* Protected GAS Comeback Request */ 4293 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0c", 2) < 0) 4294 ret = -1; 4295 /* Protected GAS Comeback Response */ 4296 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0d", 2) < 0) 4297 ret = -1; 4298#endif /* CONFIG_P2P || CONFIG_INTERWORKING */ 4299#ifdef CONFIG_P2P 4300 /* P2P Public Action */ 4301 if (nl80211_register_action_frame(bss, 4302 (u8 *) "\x04\x09\x50\x6f\x9a\x09", 4303 6) < 0) 4304 ret = -1; 4305 /* P2P Action */ 4306 if (nl80211_register_action_frame(bss, 4307 (u8 *) "\x7f\x50\x6f\x9a\x09", 4308 5) < 0) 4309 ret = -1; 4310#endif /* CONFIG_P2P */ 4311#ifdef CONFIG_IEEE80211W 4312 /* SA Query Response */ 4313 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0) 4314 ret = -1; 4315#endif /* CONFIG_IEEE80211W */ 4316#ifdef CONFIG_TDLS 4317 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) { 4318 /* TDLS Discovery Response */ 4319 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) < 4320 0) 4321 ret = -1; 4322 } 4323#endif /* CONFIG_TDLS */ 4324 4325 /* FT Action frames */ 4326 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0) 4327 ret = -1; 4328 else 4329 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT | 4330 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK; 4331 4332 /* WNM - BSS Transition Management Request */ 4333 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0) 4334 ret = -1; 4335 /* WNM-Sleep Mode Response */ 4336 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x11", 2) < 0) 4337 ret = -1; 4338 4339 nl80211_mgmt_handle_register_eloop(bss); 4340 4341 return ret; 4342} 4343 4344 4345static int nl80211_register_spurious_class3(struct i802_bss *bss) 4346{ 4347 struct wpa_driver_nl80211_data *drv = bss->drv; 4348 struct nl_msg *msg; 4349 int ret = -1; 4350 4351 msg = nlmsg_alloc(); 4352 if (!msg) 4353 return -1; 4354 4355 nl80211_cmd(drv, msg, 0, NL80211_CMD_UNEXPECTED_FRAME); 4356 4357 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 4358 4359 ret = send_and_recv(drv->global, bss->nl_mgmt, msg, NULL, NULL); 4360 msg = NULL; 4361 if (ret) { 4362 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 " 4363 "failed: ret=%d (%s)", 4364 ret, strerror(-ret)); 4365 goto nla_put_failure; 4366 } 4367 ret = 0; 4368nla_put_failure: 4369 nlmsg_free(msg); 4370 return ret; 4371} 4372 4373 4374static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss) 4375{ 4376 static const int stypes[] = { 4377 WLAN_FC_STYPE_AUTH, 4378 WLAN_FC_STYPE_ASSOC_REQ, 4379 WLAN_FC_STYPE_REASSOC_REQ, 4380 WLAN_FC_STYPE_DISASSOC, 4381 WLAN_FC_STYPE_DEAUTH, 4382 WLAN_FC_STYPE_ACTION, 4383 WLAN_FC_STYPE_PROBE_REQ, 4384/* Beacon doesn't work as mac80211 doesn't currently allow 4385 * it, but it wouldn't really be the right thing anyway as 4386 * it isn't per interface ... maybe just dump the scan 4387 * results periodically for OLBC? 4388 */ 4389// WLAN_FC_STYPE_BEACON, 4390 }; 4391 unsigned int i; 4392 4393 if (nl80211_alloc_mgmt_handle(bss)) 4394 return -1; 4395 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 4396 "handle %p", bss->nl_mgmt); 4397 4398 for (i = 0; i < ARRAY_SIZE(stypes); i++) { 4399 if (nl80211_register_frame(bss, bss->nl_mgmt, 4400 (WLAN_FC_TYPE_MGMT << 2) | 4401 (stypes[i] << 4), 4402 NULL, 0) < 0) { 4403 goto out_err; 4404 } 4405 } 4406 4407 if (nl80211_register_spurious_class3(bss)) 4408 goto out_err; 4409 4410 if (nl80211_get_wiphy_data_ap(bss) == NULL) 4411 goto out_err; 4412 4413 nl80211_mgmt_handle_register_eloop(bss); 4414 return 0; 4415 4416out_err: 4417 nl_destroy_handles(&bss->nl_mgmt); 4418 return -1; 4419} 4420 4421 4422static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss) 4423{ 4424 if (nl80211_alloc_mgmt_handle(bss)) 4425 return -1; 4426 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 4427 "handle %p (device SME)", bss->nl_mgmt); 4428 4429 if (nl80211_register_frame(bss, bss->nl_mgmt, 4430 (WLAN_FC_TYPE_MGMT << 2) | 4431 (WLAN_FC_STYPE_ACTION << 4), 4432 NULL, 0) < 0) 4433 goto out_err; 4434 4435 nl80211_mgmt_handle_register_eloop(bss); 4436 return 0; 4437 4438out_err: 4439 nl_destroy_handles(&bss->nl_mgmt); 4440 return -1; 4441} 4442 4443 4444static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason) 4445{ 4446 if (bss->nl_mgmt == NULL) 4447 return; 4448 wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p " 4449 "(%s)", bss->nl_mgmt, reason); 4450 nl80211_destroy_eloop_handle(&bss->nl_mgmt); 4451 4452 nl80211_put_wiphy_data_ap(bss); 4453} 4454 4455 4456static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx) 4457{ 4458 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL); 4459} 4460 4461 4462static void nl80211_del_p2pdev(struct i802_bss *bss) 4463{ 4464 struct wpa_driver_nl80211_data *drv = bss->drv; 4465 struct nl_msg *msg; 4466 int ret; 4467 4468 msg = nlmsg_alloc(); 4469 if (!msg) 4470 return; 4471 4472 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 4473 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 4474 4475 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4476 msg = NULL; 4477 4478 wpa_printf(MSG_DEBUG, "nl80211: Delete P2P Device %s (0x%llx): %s", 4479 bss->ifname, (long long unsigned int) bss->wdev_id, 4480 strerror(-ret)); 4481 4482nla_put_failure: 4483 nlmsg_free(msg); 4484} 4485 4486 4487static int nl80211_set_p2pdev(struct i802_bss *bss, int start) 4488{ 4489 struct wpa_driver_nl80211_data *drv = bss->drv; 4490 struct nl_msg *msg; 4491 int ret = -1; 4492 4493 msg = nlmsg_alloc(); 4494 if (!msg) 4495 return -1; 4496 4497 if (start) 4498 nl80211_cmd(drv, msg, 0, NL80211_CMD_START_P2P_DEVICE); 4499 else 4500 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_P2P_DEVICE); 4501 4502 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 4503 4504 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4505 msg = NULL; 4506 4507 wpa_printf(MSG_DEBUG, "nl80211: %s P2P Device %s (0x%llx): %s", 4508 start ? "Start" : "Stop", 4509 bss->ifname, (long long unsigned int) bss->wdev_id, 4510 strerror(-ret)); 4511 4512nla_put_failure: 4513 nlmsg_free(msg); 4514 return ret; 4515} 4516 4517 4518static int i802_set_iface_flags(struct i802_bss *bss, int up) 4519{ 4520 enum nl80211_iftype nlmode; 4521 4522 nlmode = nl80211_get_ifmode(bss); 4523 if (nlmode != NL80211_IFTYPE_P2P_DEVICE) { 4524 return linux_set_iface_flags(bss->drv->global->ioctl_sock, 4525 bss->ifname, up); 4526 } 4527 4528 /* P2P Device has start/stop which is equivalent */ 4529 return nl80211_set_p2pdev(bss, up); 4530} 4531 4532 4533static int 4534wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv, 4535 const u8 *set_addr, int first) 4536{ 4537 struct i802_bss *bss = drv->first_bss; 4538 int send_rfkill_event = 0; 4539 enum nl80211_iftype nlmode; 4540 4541 drv->ifindex = if_nametoindex(bss->ifname); 4542 bss->ifindex = drv->ifindex; 4543 bss->wdev_id = drv->global->if_add_wdevid; 4544 bss->wdev_id_set = drv->global->if_add_wdevid_set; 4545 4546 bss->if_dynamic = drv->ifindex == drv->global->if_add_ifindex; 4547 bss->if_dynamic = bss->if_dynamic || drv->global->if_add_wdevid_set; 4548 drv->global->if_add_wdevid_set = 0; 4549 4550 if (wpa_driver_nl80211_capa(drv)) 4551 return -1; 4552 4553 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s", 4554 bss->ifname, drv->phyname); 4555 4556 if (set_addr && 4557 (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0) || 4558 linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 4559 set_addr))) 4560 return -1; 4561 4562 if (first && nl80211_get_ifmode(bss) == NL80211_IFTYPE_AP) 4563 drv->start_mode_ap = 1; 4564 4565 if (drv->hostapd) 4566 nlmode = NL80211_IFTYPE_AP; 4567 else if (bss->if_dynamic) 4568 nlmode = nl80211_get_ifmode(bss); 4569 else 4570 nlmode = NL80211_IFTYPE_STATION; 4571 4572 if (wpa_driver_nl80211_set_mode(bss, nlmode) < 0) { 4573 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver mode"); 4574 return -1; 4575 } 4576 4577 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { 4578 int ret = nl80211_set_p2pdev(bss, 1); 4579 if (ret < 0) 4580 wpa_printf(MSG_ERROR, "nl80211: Could not start P2P device"); 4581 nl80211_get_macaddr(bss); 4582 return ret; 4583 } 4584 4585 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) { 4586 if (rfkill_is_blocked(drv->rfkill)) { 4587 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable " 4588 "interface '%s' due to rfkill", 4589 bss->ifname); 4590 drv->if_disabled = 1; 4591 send_rfkill_event = 1; 4592 } else { 4593 wpa_printf(MSG_ERROR, "nl80211: Could not set " 4594 "interface '%s' UP", bss->ifname); 4595 return -1; 4596 } 4597 } 4598 4599 if (!drv->hostapd) 4600 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 4601 1, IF_OPER_DORMANT); 4602 4603 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 4604 bss->addr)) 4605 return -1; 4606 4607 if (send_rfkill_event) { 4608 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill, 4609 drv, drv->ctx); 4610 } 4611 4612 return 0; 4613} 4614 4615 4616static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv) 4617{ 4618 struct nl_msg *msg; 4619 4620 msg = nlmsg_alloc(); 4621 if (!msg) 4622 return -ENOMEM; 4623 4624 wpa_printf(MSG_DEBUG, "nl80211: Remove beacon (ifindex=%d)", 4625 drv->ifindex); 4626 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON); 4627 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4628 4629 return send_and_recv_msgs(drv, msg, NULL, NULL); 4630 nla_put_failure: 4631 nlmsg_free(msg); 4632 return -ENOBUFS; 4633} 4634 4635 4636/** 4637 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface 4638 * @bss: Pointer to private nl80211 data from wpa_driver_nl80211_init() 4639 * 4640 * Shut down driver interface and processing of driver events. Free 4641 * private data buffer if one was allocated in wpa_driver_nl80211_init(). 4642 */ 4643static void wpa_driver_nl80211_deinit(struct i802_bss *bss) 4644{ 4645 struct wpa_driver_nl80211_data *drv = bss->drv; 4646 4647 bss->in_deinit = 1; 4648 if (drv->data_tx_status) 4649 eloop_unregister_read_sock(drv->eapol_tx_sock); 4650 if (drv->eapol_tx_sock >= 0) 4651 close(drv->eapol_tx_sock); 4652 4653 if (bss->nl_preq) 4654 wpa_driver_nl80211_probe_req_report(bss, 0); 4655 if (bss->added_if_into_bridge) { 4656 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 4657 bss->ifname) < 0) 4658 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 4659 "interface %s from bridge %s: %s", 4660 bss->ifname, bss->brname, strerror(errno)); 4661 } 4662 if (bss->added_bridge) { 4663 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 4664 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 4665 "bridge %s: %s", 4666 bss->brname, strerror(errno)); 4667 } 4668 4669 nl80211_remove_monitor_interface(drv); 4670 4671 if (is_ap_interface(drv->nlmode)) 4672 wpa_driver_nl80211_del_beacon(drv); 4673 4674 if (drv->eapol_sock >= 0) { 4675 eloop_unregister_read_sock(drv->eapol_sock); 4676 close(drv->eapol_sock); 4677 } 4678 4679 if (drv->if_indices != drv->default_if_indices) 4680 os_free(drv->if_indices); 4681 4682 if (drv->disabled_11b_rates) 4683 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 4684 4685 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0, 4686 IF_OPER_UP); 4687 rfkill_deinit(drv->rfkill); 4688 4689 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 4690 4691 if (!drv->start_iface_up) 4692 (void) i802_set_iface_flags(bss, 0); 4693 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) { 4694 if (!drv->hostapd || !drv->start_mode_ap) 4695 wpa_driver_nl80211_set_mode(bss, 4696 NL80211_IFTYPE_STATION); 4697 nl80211_mgmt_unsubscribe(bss, "deinit"); 4698 } else { 4699 nl80211_mgmt_unsubscribe(bss, "deinit"); 4700 nl80211_del_p2pdev(bss); 4701 } 4702 nl_cb_put(drv->nl_cb); 4703 4704 nl80211_destroy_bss(drv->first_bss); 4705 4706 os_free(drv->filter_ssids); 4707 4708 os_free(drv->auth_ie); 4709 4710 if (drv->in_interface_list) 4711 dl_list_del(&drv->list); 4712 4713 os_free(drv->extended_capa); 4714 os_free(drv->extended_capa_mask); 4715 os_free(drv->first_bss); 4716 os_free(drv); 4717} 4718 4719 4720/** 4721 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion 4722 * @eloop_ctx: Driver private data 4723 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init() 4724 * 4725 * This function can be used as registered timeout when starting a scan to 4726 * generate a scan completed event if the driver does not report this. 4727 */ 4728static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx) 4729{ 4730 struct wpa_driver_nl80211_data *drv = eloop_ctx; 4731 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) { 4732 wpa_driver_nl80211_set_mode(drv->first_bss, 4733 drv->ap_scan_as_station); 4734 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 4735 } 4736 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results"); 4737 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL); 4738} 4739 4740 4741static struct nl_msg * 4742nl80211_scan_common(struct wpa_driver_nl80211_data *drv, u8 cmd, 4743 struct wpa_driver_scan_params *params, u64 *wdev_id) 4744{ 4745 struct nl_msg *msg; 4746 size_t i; 4747 4748 msg = nlmsg_alloc(); 4749 if (!msg) 4750 return NULL; 4751 4752 nl80211_cmd(drv, msg, 0, cmd); 4753 4754 if (!wdev_id) 4755 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4756 else 4757 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, *wdev_id); 4758 4759 if (params->num_ssids) { 4760 struct nlattr *ssids; 4761 4762 ssids = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); 4763 if (ssids == NULL) 4764 goto fail; 4765 for (i = 0; i < params->num_ssids; i++) { 4766 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID", 4767 params->ssids[i].ssid, 4768 params->ssids[i].ssid_len); 4769 if (nla_put(msg, i + 1, params->ssids[i].ssid_len, 4770 params->ssids[i].ssid) < 0) 4771 goto fail; 4772 } 4773 nla_nest_end(msg, ssids); 4774 } 4775 4776 if (params->extra_ies) { 4777 wpa_hexdump(MSG_MSGDUMP, "nl80211: Scan extra IEs", 4778 params->extra_ies, params->extra_ies_len); 4779 if (nla_put(msg, NL80211_ATTR_IE, params->extra_ies_len, 4780 params->extra_ies) < 0) 4781 goto fail; 4782 } 4783 4784 if (params->freqs) { 4785 struct nlattr *freqs; 4786 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); 4787 if (freqs == NULL) 4788 goto fail; 4789 for (i = 0; params->freqs[i]; i++) { 4790 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u " 4791 "MHz", params->freqs[i]); 4792 if (nla_put_u32(msg, i + 1, params->freqs[i]) < 0) 4793 goto fail; 4794 } 4795 nla_nest_end(msg, freqs); 4796 } 4797 4798 os_free(drv->filter_ssids); 4799 drv->filter_ssids = params->filter_ssids; 4800 params->filter_ssids = NULL; 4801 drv->num_filter_ssids = params->num_filter_ssids; 4802 4803 if (params->only_new_results) { 4804 wpa_printf(MSG_DEBUG, "nl80211: Add NL80211_SCAN_FLAG_FLUSH"); 4805 NLA_PUT_U32(msg, NL80211_ATTR_SCAN_FLAGS, 4806 NL80211_SCAN_FLAG_FLUSH); 4807 } 4808 4809 return msg; 4810 4811fail: 4812nla_put_failure: 4813 nlmsg_free(msg); 4814 return NULL; 4815} 4816 4817 4818/** 4819 * wpa_driver_nl80211_scan - Request the driver to initiate scan 4820 * @bss: Pointer to private driver data from wpa_driver_nl80211_init() 4821 * @params: Scan parameters 4822 * Returns: 0 on success, -1 on failure 4823 */ 4824static int wpa_driver_nl80211_scan(struct i802_bss *bss, 4825 struct wpa_driver_scan_params *params) 4826{ 4827 struct wpa_driver_nl80211_data *drv = bss->drv; 4828 int ret = -1, timeout; 4829 struct nl_msg *msg = NULL; 4830 4831 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: scan request"); 4832 drv->scan_for_auth = 0; 4833 4834 msg = nl80211_scan_common(drv, NL80211_CMD_TRIGGER_SCAN, params, 4835 bss->wdev_id_set ? &bss->wdev_id : NULL); 4836 if (!msg) 4837 return -1; 4838 4839 if (params->p2p_probe) { 4840 struct nlattr *rates; 4841 4842 wpa_printf(MSG_DEBUG, "nl80211: P2P probe - mask SuppRates"); 4843 4844 rates = nla_nest_start(msg, NL80211_ATTR_SCAN_SUPP_RATES); 4845 if (rates == NULL) 4846 goto nla_put_failure; 4847 4848 /* 4849 * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates 4850 * by masking out everything else apart from the OFDM rates 6, 4851 * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz 4852 * rates are left enabled. 4853 */ 4854 NLA_PUT(msg, NL80211_BAND_2GHZ, 8, 4855 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 4856 nla_nest_end(msg, rates); 4857 4858 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 4859 } 4860 4861 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4862 msg = NULL; 4863 if (ret) { 4864 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d " 4865 "(%s)", ret, strerror(-ret)); 4866 if (drv->hostapd && is_ap_interface(drv->nlmode)) { 4867 /* 4868 * mac80211 does not allow scan requests in AP mode, so 4869 * try to do this in station mode. 4870 */ 4871 if (wpa_driver_nl80211_set_mode( 4872 bss, NL80211_IFTYPE_STATION)) 4873 goto nla_put_failure; 4874 4875 if (wpa_driver_nl80211_scan(bss, params)) { 4876 wpa_driver_nl80211_set_mode(bss, drv->nlmode); 4877 goto nla_put_failure; 4878 } 4879 4880 /* Restore AP mode when processing scan results */ 4881 drv->ap_scan_as_station = drv->nlmode; 4882 ret = 0; 4883 } else 4884 goto nla_put_failure; 4885 } 4886 4887 drv->scan_state = SCAN_REQUESTED; 4888 /* Not all drivers generate "scan completed" wireless event, so try to 4889 * read results after a timeout. */ 4890 timeout = 10; 4891 if (drv->scan_complete_events) { 4892 /* 4893 * The driver seems to deliver events to notify when scan is 4894 * complete, so use longer timeout to avoid race conditions 4895 * with scanning and following association request. 4896 */ 4897 timeout = 30; 4898 } 4899 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d " 4900 "seconds", ret, timeout); 4901 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 4902 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout, 4903 drv, drv->ctx); 4904 4905nla_put_failure: 4906 nlmsg_free(msg); 4907 return ret; 4908} 4909 4910 4911/** 4912 * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan 4913 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 4914 * @params: Scan parameters 4915 * @interval: Interval between scan cycles in milliseconds 4916 * Returns: 0 on success, -1 on failure or if not supported 4917 */ 4918static int wpa_driver_nl80211_sched_scan(void *priv, 4919 struct wpa_driver_scan_params *params, 4920 u32 interval) 4921{ 4922 struct i802_bss *bss = priv; 4923 struct wpa_driver_nl80211_data *drv = bss->drv; 4924 int ret = -1; 4925 struct nl_msg *msg; 4926 size_t i; 4927 4928 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: sched_scan request"); 4929 4930#ifdef ANDROID 4931 if (!drv->capa.sched_scan_supported) 4932 return android_pno_start(bss, params); 4933#endif /* ANDROID */ 4934 4935 msg = nl80211_scan_common(drv, NL80211_CMD_START_SCHED_SCAN, params, 4936 bss->wdev_id_set ? &bss->wdev_id : NULL); 4937 if (!msg) 4938 goto nla_put_failure; 4939 4940 NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval); 4941 4942 if ((drv->num_filter_ssids && 4943 (int) drv->num_filter_ssids <= drv->capa.max_match_sets) || 4944 params->filter_rssi) { 4945 struct nlattr *match_sets; 4946 match_sets = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH); 4947 if (match_sets == NULL) 4948 goto nla_put_failure; 4949 4950 for (i = 0; i < drv->num_filter_ssids; i++) { 4951 struct nlattr *match_set_ssid; 4952 wpa_hexdump_ascii(MSG_MSGDUMP, 4953 "nl80211: Sched scan filter SSID", 4954 drv->filter_ssids[i].ssid, 4955 drv->filter_ssids[i].ssid_len); 4956 4957 match_set_ssid = nla_nest_start(msg, i + 1); 4958 if (match_set_ssid == NULL) 4959 goto nla_put_failure; 4960 NLA_PUT(msg, NL80211_ATTR_SCHED_SCAN_MATCH_SSID, 4961 drv->filter_ssids[i].ssid_len, 4962 drv->filter_ssids[i].ssid); 4963 4964 nla_nest_end(msg, match_set_ssid); 4965 } 4966 4967 if (params->filter_rssi) { 4968 struct nlattr *match_set_rssi; 4969 match_set_rssi = nla_nest_start(msg, 0); 4970 if (match_set_rssi == NULL) 4971 goto nla_put_failure; 4972 NLA_PUT_U32(msg, NL80211_SCHED_SCAN_MATCH_ATTR_RSSI, 4973 params->filter_rssi); 4974 wpa_printf(MSG_MSGDUMP, 4975 "nl80211: Sched scan RSSI filter %d dBm", 4976 params->filter_rssi); 4977 nla_nest_end(msg, match_set_rssi); 4978 } 4979 4980 nla_nest_end(msg, match_sets); 4981 } 4982 4983 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4984 4985 /* TODO: if we get an error here, we should fall back to normal scan */ 4986 4987 msg = NULL; 4988 if (ret) { 4989 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: " 4990 "ret=%d (%s)", ret, strerror(-ret)); 4991 goto nla_put_failure; 4992 } 4993 4994 wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - " 4995 "scan interval %d msec", ret, interval); 4996 4997nla_put_failure: 4998 nlmsg_free(msg); 4999 return ret; 5000} 5001 5002 5003/** 5004 * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan 5005 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 5006 * Returns: 0 on success, -1 on failure or if not supported 5007 */ 5008static int wpa_driver_nl80211_stop_sched_scan(void *priv) 5009{ 5010 struct i802_bss *bss = priv; 5011 struct wpa_driver_nl80211_data *drv = bss->drv; 5012 int ret = 0; 5013 struct nl_msg *msg; 5014 5015#ifdef ANDROID 5016 if (!drv->capa.sched_scan_supported) 5017 return android_pno_stop(bss); 5018#endif /* ANDROID */ 5019 5020 msg = nlmsg_alloc(); 5021 if (!msg) 5022 return -1; 5023 5024 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN); 5025 5026 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5027 5028 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5029 msg = NULL; 5030 if (ret) { 5031 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: " 5032 "ret=%d (%s)", ret, strerror(-ret)); 5033 goto nla_put_failure; 5034 } 5035 5036 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret); 5037 5038nla_put_failure: 5039 nlmsg_free(msg); 5040 return ret; 5041} 5042 5043 5044static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie) 5045{ 5046 const u8 *end, *pos; 5047 5048 if (ies == NULL) 5049 return NULL; 5050 5051 pos = ies; 5052 end = ies + ies_len; 5053 5054 while (pos + 1 < end) { 5055 if (pos + 2 + pos[1] > end) 5056 break; 5057 if (pos[0] == ie) 5058 return pos; 5059 pos += 2 + pos[1]; 5060 } 5061 5062 return NULL; 5063} 5064 5065 5066static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv, 5067 const u8 *ie, size_t ie_len) 5068{ 5069 const u8 *ssid; 5070 size_t i; 5071 5072 if (drv->filter_ssids == NULL) 5073 return 0; 5074 5075 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID); 5076 if (ssid == NULL) 5077 return 1; 5078 5079 for (i = 0; i < drv->num_filter_ssids; i++) { 5080 if (ssid[1] == drv->filter_ssids[i].ssid_len && 5081 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) == 5082 0) 5083 return 0; 5084 } 5085 5086 return 1; 5087} 5088 5089 5090static int bss_info_handler(struct nl_msg *msg, void *arg) 5091{ 5092 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 5093 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 5094 struct nlattr *bss[NL80211_BSS_MAX + 1]; 5095 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = { 5096 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC }, 5097 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 }, 5098 [NL80211_BSS_TSF] = { .type = NLA_U64 }, 5099 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 }, 5100 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 }, 5101 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC }, 5102 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 }, 5103 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 }, 5104 [NL80211_BSS_STATUS] = { .type = NLA_U32 }, 5105 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 }, 5106 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC }, 5107 }; 5108 struct nl80211_bss_info_arg *_arg = arg; 5109 struct wpa_scan_results *res = _arg->res; 5110 struct wpa_scan_res **tmp; 5111 struct wpa_scan_res *r; 5112 const u8 *ie, *beacon_ie; 5113 size_t ie_len, beacon_ie_len; 5114 u8 *pos; 5115 size_t i; 5116 5117 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 5118 genlmsg_attrlen(gnlh, 0), NULL); 5119 if (!tb[NL80211_ATTR_BSS]) 5120 return NL_SKIP; 5121 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS], 5122 bss_policy)) 5123 return NL_SKIP; 5124 if (bss[NL80211_BSS_STATUS]) { 5125 enum nl80211_bss_status status; 5126 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 5127 if (status == NL80211_BSS_STATUS_ASSOCIATED && 5128 bss[NL80211_BSS_FREQUENCY]) { 5129 _arg->assoc_freq = 5130 nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 5131 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz", 5132 _arg->assoc_freq); 5133 } 5134 if (status == NL80211_BSS_STATUS_ASSOCIATED && 5135 bss[NL80211_BSS_BSSID]) { 5136 os_memcpy(_arg->assoc_bssid, 5137 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN); 5138 wpa_printf(MSG_DEBUG, "nl80211: Associated with " 5139 MACSTR, MAC2STR(_arg->assoc_bssid)); 5140 } 5141 } 5142 if (!res) 5143 return NL_SKIP; 5144 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) { 5145 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 5146 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 5147 } else { 5148 ie = NULL; 5149 ie_len = 0; 5150 } 5151 if (bss[NL80211_BSS_BEACON_IES]) { 5152 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]); 5153 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]); 5154 } else { 5155 beacon_ie = NULL; 5156 beacon_ie_len = 0; 5157 } 5158 5159 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie, 5160 ie ? ie_len : beacon_ie_len)) 5161 return NL_SKIP; 5162 5163 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len); 5164 if (r == NULL) 5165 return NL_SKIP; 5166 if (bss[NL80211_BSS_BSSID]) 5167 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]), 5168 ETH_ALEN); 5169 if (bss[NL80211_BSS_FREQUENCY]) 5170 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 5171 if (bss[NL80211_BSS_BEACON_INTERVAL]) 5172 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]); 5173 if (bss[NL80211_BSS_CAPABILITY]) 5174 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]); 5175 r->flags |= WPA_SCAN_NOISE_INVALID; 5176 if (bss[NL80211_BSS_SIGNAL_MBM]) { 5177 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]); 5178 r->level /= 100; /* mBm to dBm */ 5179 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID; 5180 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) { 5181 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]); 5182 r->flags |= WPA_SCAN_QUAL_INVALID; 5183 } else 5184 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID; 5185 if (bss[NL80211_BSS_TSF]) 5186 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]); 5187 if (bss[NL80211_BSS_SEEN_MS_AGO]) 5188 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]); 5189 r->ie_len = ie_len; 5190 pos = (u8 *) (r + 1); 5191 if (ie) { 5192 os_memcpy(pos, ie, ie_len); 5193 pos += ie_len; 5194 } 5195 r->beacon_ie_len = beacon_ie_len; 5196 if (beacon_ie) 5197 os_memcpy(pos, beacon_ie, beacon_ie_len); 5198 5199 if (bss[NL80211_BSS_STATUS]) { 5200 enum nl80211_bss_status status; 5201 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 5202 switch (status) { 5203 case NL80211_BSS_STATUS_AUTHENTICATED: 5204 r->flags |= WPA_SCAN_AUTHENTICATED; 5205 break; 5206 case NL80211_BSS_STATUS_ASSOCIATED: 5207 r->flags |= WPA_SCAN_ASSOCIATED; 5208 break; 5209 default: 5210 break; 5211 } 5212 } 5213 5214 /* 5215 * cfg80211 maintains separate BSS table entries for APs if the same 5216 * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does 5217 * not use frequency as a separate key in the BSS table, so filter out 5218 * duplicated entries. Prefer associated BSS entry in such a case in 5219 * order to get the correct frequency into the BSS table. Similarly, 5220 * prefer newer entries over older. 5221 */ 5222 for (i = 0; i < res->num; i++) { 5223 const u8 *s1, *s2; 5224 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0) 5225 continue; 5226 5227 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1), 5228 res->res[i]->ie_len, WLAN_EID_SSID); 5229 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID); 5230 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] || 5231 os_memcmp(s1, s2, 2 + s1[1]) != 0) 5232 continue; 5233 5234 /* Same BSSID,SSID was already included in scan results */ 5235 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result " 5236 "for " MACSTR, MAC2STR(r->bssid)); 5237 5238 if (((r->flags & WPA_SCAN_ASSOCIATED) && 5239 !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) || 5240 r->age < res->res[i]->age) { 5241 os_free(res->res[i]); 5242 res->res[i] = r; 5243 } else 5244 os_free(r); 5245 return NL_SKIP; 5246 } 5247 5248 tmp = os_realloc_array(res->res, res->num + 1, 5249 sizeof(struct wpa_scan_res *)); 5250 if (tmp == NULL) { 5251 os_free(r); 5252 return NL_SKIP; 5253 } 5254 tmp[res->num++] = r; 5255 res->res = tmp; 5256 5257 return NL_SKIP; 5258} 5259 5260 5261static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv, 5262 const u8 *addr) 5263{ 5264 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 5265 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state " 5266 "mismatch (" MACSTR ")", MAC2STR(addr)); 5267 wpa_driver_nl80211_mlme(drv, addr, 5268 NL80211_CMD_DEAUTHENTICATE, 5269 WLAN_REASON_PREV_AUTH_NOT_VALID, 1); 5270 } 5271} 5272 5273 5274static void wpa_driver_nl80211_check_bss_status( 5275 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res) 5276{ 5277 size_t i; 5278 5279 for (i = 0; i < res->num; i++) { 5280 struct wpa_scan_res *r = res->res[i]; 5281 if (r->flags & WPA_SCAN_AUTHENTICATED) { 5282 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 5283 "indicates BSS status with " MACSTR 5284 " as authenticated", 5285 MAC2STR(r->bssid)); 5286 if (is_sta_interface(drv->nlmode) && 5287 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 && 5288 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) != 5289 0) { 5290 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID" 5291 " in local state (auth=" MACSTR 5292 " assoc=" MACSTR ")", 5293 MAC2STR(drv->auth_bssid), 5294 MAC2STR(drv->bssid)); 5295 clear_state_mismatch(drv, r->bssid); 5296 } 5297 } 5298 5299 if (r->flags & WPA_SCAN_ASSOCIATED) { 5300 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 5301 "indicate BSS status with " MACSTR 5302 " as associated", 5303 MAC2STR(r->bssid)); 5304 if (is_sta_interface(drv->nlmode) && 5305 !drv->associated) { 5306 wpa_printf(MSG_DEBUG, "nl80211: Local state " 5307 "(not associated) does not match " 5308 "with BSS state"); 5309 clear_state_mismatch(drv, r->bssid); 5310 } else if (is_sta_interface(drv->nlmode) && 5311 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) != 5312 0) { 5313 wpa_printf(MSG_DEBUG, "nl80211: Local state " 5314 "(associated with " MACSTR ") does " 5315 "not match with BSS state", 5316 MAC2STR(drv->bssid)); 5317 clear_state_mismatch(drv, r->bssid); 5318 clear_state_mismatch(drv, drv->bssid); 5319 } 5320 } 5321 } 5322} 5323 5324 5325static struct wpa_scan_results * 5326nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv) 5327{ 5328 struct nl_msg *msg; 5329 struct wpa_scan_results *res; 5330 int ret; 5331 struct nl80211_bss_info_arg arg; 5332 5333 res = os_zalloc(sizeof(*res)); 5334 if (res == NULL) 5335 return NULL; 5336 msg = nlmsg_alloc(); 5337 if (!msg) 5338 goto nla_put_failure; 5339 5340 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 5341 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 5342 goto nla_put_failure; 5343 5344 arg.drv = drv; 5345 arg.res = res; 5346 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 5347 msg = NULL; 5348 if (ret == 0) { 5349 wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu " 5350 "BSSes)", (unsigned long) res->num); 5351 nl80211_get_noise_for_scan_results(drv, res); 5352 return res; 5353 } 5354 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 5355 "(%s)", ret, strerror(-ret)); 5356nla_put_failure: 5357 nlmsg_free(msg); 5358 wpa_scan_results_free(res); 5359 return NULL; 5360} 5361 5362 5363/** 5364 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results 5365 * @priv: Pointer to private wext data from wpa_driver_nl80211_init() 5366 * Returns: Scan results on success, -1 on failure 5367 */ 5368static struct wpa_scan_results * 5369wpa_driver_nl80211_get_scan_results(void *priv) 5370{ 5371 struct i802_bss *bss = priv; 5372 struct wpa_driver_nl80211_data *drv = bss->drv; 5373 struct wpa_scan_results *res; 5374 5375 res = nl80211_get_scan_results(drv); 5376 if (res) 5377 wpa_driver_nl80211_check_bss_status(drv, res); 5378 return res; 5379} 5380 5381 5382static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv) 5383{ 5384 struct wpa_scan_results *res; 5385 size_t i; 5386 5387 res = nl80211_get_scan_results(drv); 5388 if (res == NULL) { 5389 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results"); 5390 return; 5391 } 5392 5393 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump"); 5394 for (i = 0; i < res->num; i++) { 5395 struct wpa_scan_res *r = res->res[i]; 5396 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s", 5397 (int) i, (int) res->num, MAC2STR(r->bssid), 5398 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "", 5399 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : ""); 5400 } 5401 5402 wpa_scan_results_free(res); 5403} 5404 5405 5406static u32 wpa_alg_to_cipher_suite(enum wpa_alg alg, size_t key_len) 5407{ 5408 switch (alg) { 5409 case WPA_ALG_WEP: 5410 if (key_len == 5) 5411 return WLAN_CIPHER_SUITE_WEP40; 5412 return WLAN_CIPHER_SUITE_WEP104; 5413 case WPA_ALG_TKIP: 5414 return WLAN_CIPHER_SUITE_TKIP; 5415 case WPA_ALG_CCMP: 5416 return WLAN_CIPHER_SUITE_CCMP; 5417 case WPA_ALG_GCMP: 5418 return WLAN_CIPHER_SUITE_GCMP; 5419 case WPA_ALG_CCMP_256: 5420 return WLAN_CIPHER_SUITE_CCMP_256; 5421 case WPA_ALG_GCMP_256: 5422 return WLAN_CIPHER_SUITE_GCMP_256; 5423 case WPA_ALG_IGTK: 5424 return WLAN_CIPHER_SUITE_AES_CMAC; 5425 case WPA_ALG_BIP_GMAC_128: 5426 return WLAN_CIPHER_SUITE_BIP_GMAC_128; 5427 case WPA_ALG_BIP_GMAC_256: 5428 return WLAN_CIPHER_SUITE_BIP_GMAC_256; 5429 case WPA_ALG_BIP_CMAC_256: 5430 return WLAN_CIPHER_SUITE_BIP_CMAC_256; 5431 case WPA_ALG_SMS4: 5432 return WLAN_CIPHER_SUITE_SMS4; 5433 case WPA_ALG_KRK: 5434 return WLAN_CIPHER_SUITE_KRK; 5435 case WPA_ALG_NONE: 5436 case WPA_ALG_PMK: 5437 wpa_printf(MSG_ERROR, "nl80211: Unexpected encryption algorithm %d", 5438 alg); 5439 return 0; 5440 } 5441 5442 wpa_printf(MSG_ERROR, "nl80211: Unsupported encryption algorithm %d", 5443 alg); 5444 return 0; 5445} 5446 5447 5448static u32 wpa_cipher_to_cipher_suite(unsigned int cipher) 5449{ 5450 switch (cipher) { 5451 case WPA_CIPHER_CCMP_256: 5452 return WLAN_CIPHER_SUITE_CCMP_256; 5453 case WPA_CIPHER_GCMP_256: 5454 return WLAN_CIPHER_SUITE_GCMP_256; 5455 case WPA_CIPHER_CCMP: 5456 return WLAN_CIPHER_SUITE_CCMP; 5457 case WPA_CIPHER_GCMP: 5458 return WLAN_CIPHER_SUITE_GCMP; 5459 case WPA_CIPHER_TKIP: 5460 return WLAN_CIPHER_SUITE_TKIP; 5461 case WPA_CIPHER_WEP104: 5462 return WLAN_CIPHER_SUITE_WEP104; 5463 case WPA_CIPHER_WEP40: 5464 return WLAN_CIPHER_SUITE_WEP40; 5465 } 5466 5467 return 0; 5468} 5469 5470 5471static int wpa_cipher_to_cipher_suites(unsigned int ciphers, u32 suites[], 5472 int max_suites) 5473{ 5474 int num_suites = 0; 5475 5476 if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP_256) 5477 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP_256; 5478 if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP_256) 5479 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP_256; 5480 if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP) 5481 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP; 5482 if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP) 5483 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP; 5484 if (num_suites < max_suites && ciphers & WPA_CIPHER_TKIP) 5485 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP; 5486 if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP104) 5487 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104; 5488 if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP40) 5489 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40; 5490 5491 return num_suites; 5492} 5493 5494 5495static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss, 5496 enum wpa_alg alg, const u8 *addr, 5497 int key_idx, int set_tx, 5498 const u8 *seq, size_t seq_len, 5499 const u8 *key, size_t key_len) 5500{ 5501 struct wpa_driver_nl80211_data *drv = bss->drv; 5502 int ifindex; 5503 struct nl_msg *msg; 5504 int ret; 5505 int tdls = 0; 5506 5507 /* Ignore for P2P Device */ 5508 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 5509 return 0; 5510 5511 ifindex = if_nametoindex(ifname); 5512 wpa_printf(MSG_DEBUG, "%s: ifindex=%d (%s) alg=%d addr=%p key_idx=%d " 5513 "set_tx=%d seq_len=%lu key_len=%lu", 5514 __func__, ifindex, ifname, alg, addr, key_idx, set_tx, 5515 (unsigned long) seq_len, (unsigned long) key_len); 5516#ifdef CONFIG_TDLS 5517 if (key_idx == -1) { 5518 key_idx = 0; 5519 tdls = 1; 5520 } 5521#endif /* CONFIG_TDLS */ 5522 5523 msg = nlmsg_alloc(); 5524 if (!msg) 5525 return -ENOMEM; 5526 5527 if (alg == WPA_ALG_NONE) { 5528 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY); 5529 } else { 5530 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY); 5531 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key); 5532 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5533 wpa_alg_to_cipher_suite(alg, key_len)); 5534 } 5535 5536 if (seq && seq_len) 5537 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq); 5538 5539 if (addr && !is_broadcast_ether_addr(addr)) { 5540 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr)); 5541 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 5542 5543 if (alg != WPA_ALG_WEP && key_idx && !set_tx) { 5544 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK"); 5545 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, 5546 NL80211_KEYTYPE_GROUP); 5547 } 5548 } else if (addr && is_broadcast_ether_addr(addr)) { 5549 struct nlattr *types; 5550 5551 wpa_printf(MSG_DEBUG, " broadcast key"); 5552 5553 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5554 if (!types) 5555 goto nla_put_failure; 5556 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 5557 nla_nest_end(msg, types); 5558 } 5559 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 5560 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5561 5562 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5563 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE) 5564 ret = 0; 5565 if (ret) 5566 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)", 5567 ret, strerror(-ret)); 5568 5569 /* 5570 * If we failed or don't need to set the default TX key (below), 5571 * we're done here. 5572 */ 5573 if (ret || !set_tx || alg == WPA_ALG_NONE || tdls) 5574 return ret; 5575 if (is_ap_interface(drv->nlmode) && addr && 5576 !is_broadcast_ether_addr(addr)) 5577 return ret; 5578 5579 msg = nlmsg_alloc(); 5580 if (!msg) 5581 return -ENOMEM; 5582 5583 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY); 5584 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 5585 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5586 if (alg == WPA_ALG_IGTK) 5587 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT); 5588 else 5589 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT); 5590 if (addr && is_broadcast_ether_addr(addr)) { 5591 struct nlattr *types; 5592 5593 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5594 if (!types) 5595 goto nla_put_failure; 5596 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 5597 nla_nest_end(msg, types); 5598 } else if (addr) { 5599 struct nlattr *types; 5600 5601 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5602 if (!types) 5603 goto nla_put_failure; 5604 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_UNICAST); 5605 nla_nest_end(msg, types); 5606 } 5607 5608 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5609 if (ret == -ENOENT) 5610 ret = 0; 5611 if (ret) 5612 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; " 5613 "err=%d %s)", ret, strerror(-ret)); 5614 return ret; 5615 5616nla_put_failure: 5617 nlmsg_free(msg); 5618 return -ENOBUFS; 5619} 5620 5621 5622static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg, 5623 int key_idx, int defkey, 5624 const u8 *seq, size_t seq_len, 5625 const u8 *key, size_t key_len) 5626{ 5627 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY); 5628 if (!key_attr) 5629 return -1; 5630 5631 if (defkey && alg == WPA_ALG_IGTK) 5632 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT); 5633 else if (defkey) 5634 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 5635 5636 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx); 5637 5638 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5639 wpa_alg_to_cipher_suite(alg, key_len)); 5640 5641 if (seq && seq_len) 5642 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq); 5643 5644 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key); 5645 5646 nla_nest_end(msg, key_attr); 5647 5648 return 0; 5649 nla_put_failure: 5650 return -1; 5651} 5652 5653 5654static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params, 5655 struct nl_msg *msg) 5656{ 5657 int i, privacy = 0; 5658 struct nlattr *nl_keys, *nl_key; 5659 5660 for (i = 0; i < 4; i++) { 5661 if (!params->wep_key[i]) 5662 continue; 5663 privacy = 1; 5664 break; 5665 } 5666 if (params->wps == WPS_MODE_PRIVACY) 5667 privacy = 1; 5668 if (params->pairwise_suite && 5669 params->pairwise_suite != WPA_CIPHER_NONE) 5670 privacy = 1; 5671 5672 if (!privacy) 5673 return 0; 5674 5675 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 5676 5677 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS); 5678 if (!nl_keys) 5679 goto nla_put_failure; 5680 5681 for (i = 0; i < 4; i++) { 5682 if (!params->wep_key[i]) 5683 continue; 5684 5685 nl_key = nla_nest_start(msg, i); 5686 if (!nl_key) 5687 goto nla_put_failure; 5688 5689 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i], 5690 params->wep_key[i]); 5691 if (params->wep_key_len[i] == 5) 5692 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5693 WLAN_CIPHER_SUITE_WEP40); 5694 else 5695 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5696 WLAN_CIPHER_SUITE_WEP104); 5697 5698 NLA_PUT_U8(msg, NL80211_KEY_IDX, i); 5699 5700 if (i == params->wep_tx_keyidx) 5701 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 5702 5703 nla_nest_end(msg, nl_key); 5704 } 5705 nla_nest_end(msg, nl_keys); 5706 5707 return 0; 5708 5709nla_put_failure: 5710 return -ENOBUFS; 5711} 5712 5713 5714static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 5715 const u8 *addr, int cmd, u16 reason_code, 5716 int local_state_change) 5717{ 5718 int ret = -1; 5719 struct nl_msg *msg; 5720 5721 msg = nlmsg_alloc(); 5722 if (!msg) 5723 return -1; 5724 5725 nl80211_cmd(drv, msg, 0, cmd); 5726 5727 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5728 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code); 5729 if (addr) 5730 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 5731 if (local_state_change) 5732 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 5733 5734 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5735 msg = NULL; 5736 if (ret) { 5737 wpa_dbg(drv->ctx, MSG_DEBUG, 5738 "nl80211: MLME command failed: reason=%u ret=%d (%s)", 5739 reason_code, ret, strerror(-ret)); 5740 goto nla_put_failure; 5741 } 5742 ret = 0; 5743 5744nla_put_failure: 5745 nlmsg_free(msg); 5746 return ret; 5747} 5748 5749 5750static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv, 5751 int reason_code) 5752{ 5753 int ret; 5754 5755 wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code); 5756 nl80211_mark_disconnected(drv); 5757 /* Disconnect command doesn't need BSSID - it uses cached value */ 5758 ret = wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT, 5759 reason_code, 0); 5760 /* 5761 * For locally generated disconnect, supplicant already generates a 5762 * DEAUTH event, so ignore the event from NL80211. 5763 */ 5764 drv->ignore_next_local_disconnect = ret == 0; 5765 5766 return ret; 5767} 5768 5769 5770static int wpa_driver_nl80211_deauthenticate(struct i802_bss *bss, 5771 const u8 *addr, int reason_code) 5772{ 5773 struct wpa_driver_nl80211_data *drv = bss->drv; 5774 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) 5775 return wpa_driver_nl80211_disconnect(drv, reason_code); 5776 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)", 5777 __func__, MAC2STR(addr), reason_code); 5778 nl80211_mark_disconnected(drv); 5779 if (drv->nlmode == NL80211_IFTYPE_ADHOC) 5780 return nl80211_leave_ibss(drv); 5781 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE, 5782 reason_code, 0); 5783} 5784 5785 5786static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv, 5787 struct wpa_driver_auth_params *params) 5788{ 5789 int i; 5790 5791 drv->auth_freq = params->freq; 5792 drv->auth_alg = params->auth_alg; 5793 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx; 5794 drv->auth_local_state_change = params->local_state_change; 5795 drv->auth_p2p = params->p2p; 5796 5797 if (params->bssid) 5798 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN); 5799 else 5800 os_memset(drv->auth_bssid_, 0, ETH_ALEN); 5801 5802 if (params->ssid) { 5803 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len); 5804 drv->auth_ssid_len = params->ssid_len; 5805 } else 5806 drv->auth_ssid_len = 0; 5807 5808 5809 os_free(drv->auth_ie); 5810 drv->auth_ie = NULL; 5811 drv->auth_ie_len = 0; 5812 if (params->ie) { 5813 drv->auth_ie = os_malloc(params->ie_len); 5814 if (drv->auth_ie) { 5815 os_memcpy(drv->auth_ie, params->ie, params->ie_len); 5816 drv->auth_ie_len = params->ie_len; 5817 } 5818 } 5819 5820 for (i = 0; i < 4; i++) { 5821 if (params->wep_key[i] && params->wep_key_len[i] && 5822 params->wep_key_len[i] <= 16) { 5823 os_memcpy(drv->auth_wep_key[i], params->wep_key[i], 5824 params->wep_key_len[i]); 5825 drv->auth_wep_key_len[i] = params->wep_key_len[i]; 5826 } else 5827 drv->auth_wep_key_len[i] = 0; 5828 } 5829} 5830 5831 5832static int wpa_driver_nl80211_authenticate( 5833 struct i802_bss *bss, struct wpa_driver_auth_params *params) 5834{ 5835 struct wpa_driver_nl80211_data *drv = bss->drv; 5836 int ret = -1, i; 5837 struct nl_msg *msg; 5838 enum nl80211_auth_type type; 5839 enum nl80211_iftype nlmode; 5840 int count = 0; 5841 int is_retry; 5842 5843 is_retry = drv->retry_auth; 5844 drv->retry_auth = 0; 5845 5846 nl80211_mark_disconnected(drv); 5847 os_memset(drv->auth_bssid, 0, ETH_ALEN); 5848 if (params->bssid) 5849 os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN); 5850 else 5851 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 5852 /* FIX: IBSS mode */ 5853 nlmode = params->p2p ? 5854 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 5855 if (drv->nlmode != nlmode && 5856 wpa_driver_nl80211_set_mode(bss, nlmode) < 0) 5857 return -1; 5858 5859retry: 5860 msg = nlmsg_alloc(); 5861 if (!msg) 5862 return -1; 5863 5864 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)", 5865 drv->ifindex); 5866 5867 nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE); 5868 5869 for (i = 0; i < 4; i++) { 5870 if (!params->wep_key[i]) 5871 continue; 5872 wpa_driver_nl80211_set_key(bss->ifname, bss, WPA_ALG_WEP, 5873 NULL, i, 5874 i == params->wep_tx_keyidx, NULL, 0, 5875 params->wep_key[i], 5876 params->wep_key_len[i]); 5877 if (params->wep_tx_keyidx != i) 5878 continue; 5879 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0, 5880 params->wep_key[i], params->wep_key_len[i])) { 5881 nlmsg_free(msg); 5882 return -1; 5883 } 5884 } 5885 5886 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5887 if (params->bssid) { 5888 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 5889 MAC2STR(params->bssid)); 5890 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 5891 } 5892 if (params->freq) { 5893 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 5894 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 5895 } 5896 if (params->ssid) { 5897 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 5898 params->ssid, params->ssid_len); 5899 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 5900 params->ssid); 5901 } 5902 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len); 5903 if (params->ie) 5904 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie); 5905 if (params->sae_data) { 5906 wpa_hexdump(MSG_DEBUG, " * SAE data", params->sae_data, 5907 params->sae_data_len); 5908 NLA_PUT(msg, NL80211_ATTR_SAE_DATA, params->sae_data_len, 5909 params->sae_data); 5910 } 5911 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 5912 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 5913 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 5914 type = NL80211_AUTHTYPE_SHARED_KEY; 5915 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 5916 type = NL80211_AUTHTYPE_NETWORK_EAP; 5917 else if (params->auth_alg & WPA_AUTH_ALG_FT) 5918 type = NL80211_AUTHTYPE_FT; 5919 else if (params->auth_alg & WPA_AUTH_ALG_SAE) 5920 type = NL80211_AUTHTYPE_SAE; 5921 else 5922 goto nla_put_failure; 5923 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 5924 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 5925 if (params->local_state_change) { 5926 wpa_printf(MSG_DEBUG, " * Local state change only"); 5927 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 5928 } 5929 5930 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5931 msg = NULL; 5932 if (ret) { 5933 wpa_dbg(drv->ctx, MSG_DEBUG, 5934 "nl80211: MLME command failed (auth): ret=%d (%s)", 5935 ret, strerror(-ret)); 5936 count++; 5937 if (ret == -EALREADY && count == 1 && params->bssid && 5938 !params->local_state_change) { 5939 /* 5940 * mac80211 does not currently accept new 5941 * authentication if we are already authenticated. As a 5942 * workaround, force deauthentication and try again. 5943 */ 5944 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication " 5945 "after forced deauthentication"); 5946 wpa_driver_nl80211_deauthenticate( 5947 bss, params->bssid, 5948 WLAN_REASON_PREV_AUTH_NOT_VALID); 5949 nlmsg_free(msg); 5950 goto retry; 5951 } 5952 5953 if (ret == -ENOENT && params->freq && !is_retry) { 5954 /* 5955 * cfg80211 has likely expired the BSS entry even 5956 * though it was previously available in our internal 5957 * BSS table. To recover quickly, start a single 5958 * channel scan on the specified channel. 5959 */ 5960 struct wpa_driver_scan_params scan; 5961 int freqs[2]; 5962 5963 os_memset(&scan, 0, sizeof(scan)); 5964 scan.num_ssids = 1; 5965 if (params->ssid) { 5966 scan.ssids[0].ssid = params->ssid; 5967 scan.ssids[0].ssid_len = params->ssid_len; 5968 } 5969 freqs[0] = params->freq; 5970 freqs[1] = 0; 5971 scan.freqs = freqs; 5972 wpa_printf(MSG_DEBUG, "nl80211: Trigger single " 5973 "channel scan to refresh cfg80211 BSS " 5974 "entry"); 5975 ret = wpa_driver_nl80211_scan(bss, &scan); 5976 if (ret == 0) { 5977 nl80211_copy_auth_params(drv, params); 5978 drv->scan_for_auth = 1; 5979 } 5980 } else if (is_retry) { 5981 /* 5982 * Need to indicate this with an event since the return 5983 * value from the retry is not delivered to core code. 5984 */ 5985 union wpa_event_data event; 5986 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry " 5987 "failed"); 5988 os_memset(&event, 0, sizeof(event)); 5989 os_memcpy(event.timeout_event.addr, drv->auth_bssid_, 5990 ETH_ALEN); 5991 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT, 5992 &event); 5993 } 5994 5995 goto nla_put_failure; 5996 } 5997 ret = 0; 5998 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send " 5999 "successfully"); 6000 6001nla_put_failure: 6002 nlmsg_free(msg); 6003 return ret; 6004} 6005 6006 6007static int wpa_driver_nl80211_authenticate_retry( 6008 struct wpa_driver_nl80211_data *drv) 6009{ 6010 struct wpa_driver_auth_params params; 6011 struct i802_bss *bss = drv->first_bss; 6012 int i; 6013 6014 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again"); 6015 6016 os_memset(¶ms, 0, sizeof(params)); 6017 params.freq = drv->auth_freq; 6018 params.auth_alg = drv->auth_alg; 6019 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx; 6020 params.local_state_change = drv->auth_local_state_change; 6021 params.p2p = drv->auth_p2p; 6022 6023 if (!is_zero_ether_addr(drv->auth_bssid_)) 6024 params.bssid = drv->auth_bssid_; 6025 6026 if (drv->auth_ssid_len) { 6027 params.ssid = drv->auth_ssid; 6028 params.ssid_len = drv->auth_ssid_len; 6029 } 6030 6031 params.ie = drv->auth_ie; 6032 params.ie_len = drv->auth_ie_len; 6033 6034 for (i = 0; i < 4; i++) { 6035 if (drv->auth_wep_key_len[i]) { 6036 params.wep_key[i] = drv->auth_wep_key[i]; 6037 params.wep_key_len[i] = drv->auth_wep_key_len[i]; 6038 } 6039 } 6040 6041 drv->retry_auth = 1; 6042 return wpa_driver_nl80211_authenticate(bss, ¶ms); 6043} 6044 6045 6046struct phy_info_arg { 6047 u16 *num_modes; 6048 struct hostapd_hw_modes *modes; 6049 int last_mode, last_chan_idx; 6050}; 6051 6052static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa, 6053 struct nlattr *ampdu_factor, 6054 struct nlattr *ampdu_density, 6055 struct nlattr *mcs_set) 6056{ 6057 if (capa) 6058 mode->ht_capab = nla_get_u16(capa); 6059 6060 if (ampdu_factor) 6061 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03; 6062 6063 if (ampdu_density) 6064 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2; 6065 6066 if (mcs_set && nla_len(mcs_set) >= 16) { 6067 u8 *mcs; 6068 mcs = nla_data(mcs_set); 6069 os_memcpy(mode->mcs_set, mcs, 16); 6070 } 6071} 6072 6073 6074static void phy_info_vht_capa(struct hostapd_hw_modes *mode, 6075 struct nlattr *capa, 6076 struct nlattr *mcs_set) 6077{ 6078 if (capa) 6079 mode->vht_capab = nla_get_u32(capa); 6080 6081 if (mcs_set && nla_len(mcs_set) >= 8) { 6082 u8 *mcs; 6083 mcs = nla_data(mcs_set); 6084 os_memcpy(mode->vht_mcs_set, mcs, 8); 6085 } 6086} 6087 6088 6089static void phy_info_freq(struct hostapd_hw_modes *mode, 6090 struct hostapd_channel_data *chan, 6091 struct nlattr *tb_freq[]) 6092{ 6093 u8 channel; 6094 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]); 6095 chan->flag = 0; 6096 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES) 6097 chan->chan = channel; 6098 6099 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) 6100 chan->flag |= HOSTAPD_CHAN_DISABLED; 6101 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IR]) 6102 chan->flag |= HOSTAPD_CHAN_PASSIVE_SCAN | HOSTAPD_CHAN_NO_IBSS; 6103 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR]) 6104 chan->flag |= HOSTAPD_CHAN_RADAR; 6105 6106 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) { 6107 enum nl80211_dfs_state state = 6108 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]); 6109 6110 switch (state) { 6111 case NL80211_DFS_USABLE: 6112 chan->flag |= HOSTAPD_CHAN_DFS_USABLE; 6113 break; 6114 case NL80211_DFS_AVAILABLE: 6115 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE; 6116 break; 6117 case NL80211_DFS_UNAVAILABLE: 6118 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE; 6119 break; 6120 } 6121 } 6122} 6123 6124 6125static int phy_info_freqs(struct phy_info_arg *phy_info, 6126 struct hostapd_hw_modes *mode, struct nlattr *tb) 6127{ 6128 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 6129 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 }, 6130 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG }, 6131 [NL80211_FREQUENCY_ATTR_NO_IR] = { .type = NLA_FLAG }, 6132 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG }, 6133 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 }, 6134 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 }, 6135 }; 6136 int new_channels = 0; 6137 struct hostapd_channel_data *channel; 6138 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1]; 6139 struct nlattr *nl_freq; 6140 int rem_freq, idx; 6141 6142 if (tb == NULL) 6143 return NL_OK; 6144 6145 nla_for_each_nested(nl_freq, tb, rem_freq) { 6146 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 6147 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 6148 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 6149 continue; 6150 new_channels++; 6151 } 6152 6153 channel = os_realloc_array(mode->channels, 6154 mode->num_channels + new_channels, 6155 sizeof(struct hostapd_channel_data)); 6156 if (!channel) 6157 return NL_SKIP; 6158 6159 mode->channels = channel; 6160 mode->num_channels += new_channels; 6161 6162 idx = phy_info->last_chan_idx; 6163 6164 nla_for_each_nested(nl_freq, tb, rem_freq) { 6165 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 6166 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 6167 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 6168 continue; 6169 phy_info_freq(mode, &mode->channels[idx], tb_freq); 6170 idx++; 6171 } 6172 phy_info->last_chan_idx = idx; 6173 6174 return NL_OK; 6175} 6176 6177 6178static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb) 6179{ 6180 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = { 6181 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 }, 6182 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = 6183 { .type = NLA_FLAG }, 6184 }; 6185 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1]; 6186 struct nlattr *nl_rate; 6187 int rem_rate, idx; 6188 6189 if (tb == NULL) 6190 return NL_OK; 6191 6192 nla_for_each_nested(nl_rate, tb, rem_rate) { 6193 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 6194 nla_data(nl_rate), nla_len(nl_rate), 6195 rate_policy); 6196 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 6197 continue; 6198 mode->num_rates++; 6199 } 6200 6201 mode->rates = os_calloc(mode->num_rates, sizeof(int)); 6202 if (!mode->rates) 6203 return NL_SKIP; 6204 6205 idx = 0; 6206 6207 nla_for_each_nested(nl_rate, tb, rem_rate) { 6208 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 6209 nla_data(nl_rate), nla_len(nl_rate), 6210 rate_policy); 6211 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 6212 continue; 6213 mode->rates[idx] = nla_get_u32( 6214 tb_rate[NL80211_BITRATE_ATTR_RATE]); 6215 idx++; 6216 } 6217 6218 return NL_OK; 6219} 6220 6221 6222static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band) 6223{ 6224 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1]; 6225 struct hostapd_hw_modes *mode; 6226 int ret; 6227 6228 if (phy_info->last_mode != nl_band->nla_type) { 6229 mode = os_realloc_array(phy_info->modes, 6230 *phy_info->num_modes + 1, 6231 sizeof(*mode)); 6232 if (!mode) 6233 return NL_SKIP; 6234 phy_info->modes = mode; 6235 6236 mode = &phy_info->modes[*(phy_info->num_modes)]; 6237 os_memset(mode, 0, sizeof(*mode)); 6238 mode->mode = NUM_HOSTAPD_MODES; 6239 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN | 6240 HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN; 6241 6242 /* 6243 * Unsupported VHT MCS stream is defined as value 3, so the VHT 6244 * MCS RX/TX map must be initialized with 0xffff to mark all 8 6245 * possible streams as unsupported. This will be overridden if 6246 * driver advertises VHT support. 6247 */ 6248 mode->vht_mcs_set[0] = 0xff; 6249 mode->vht_mcs_set[1] = 0xff; 6250 mode->vht_mcs_set[4] = 0xff; 6251 mode->vht_mcs_set[5] = 0xff; 6252 6253 *(phy_info->num_modes) += 1; 6254 phy_info->last_mode = nl_band->nla_type; 6255 phy_info->last_chan_idx = 0; 6256 } else 6257 mode = &phy_info->modes[*(phy_info->num_modes) - 1]; 6258 6259 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band), 6260 nla_len(nl_band), NULL); 6261 6262 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA], 6263 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR], 6264 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY], 6265 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]); 6266 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA], 6267 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]); 6268 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]); 6269 if (ret != NL_OK) 6270 return ret; 6271 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]); 6272 if (ret != NL_OK) 6273 return ret; 6274 6275 return NL_OK; 6276} 6277 6278 6279static int phy_info_handler(struct nl_msg *msg, void *arg) 6280{ 6281 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 6282 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 6283 struct phy_info_arg *phy_info = arg; 6284 struct nlattr *nl_band; 6285 int rem_band; 6286 6287 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 6288 genlmsg_attrlen(gnlh, 0), NULL); 6289 6290 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS]) 6291 return NL_SKIP; 6292 6293 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) 6294 { 6295 int res = phy_info_band(phy_info, nl_band); 6296 if (res != NL_OK) 6297 return res; 6298 } 6299 6300 return NL_SKIP; 6301} 6302 6303 6304static struct hostapd_hw_modes * 6305wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes, 6306 u16 *num_modes) 6307{ 6308 u16 m; 6309 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode; 6310 int i, mode11g_idx = -1; 6311 6312 /* heuristic to set up modes */ 6313 for (m = 0; m < *num_modes; m++) { 6314 if (!modes[m].num_channels) 6315 continue; 6316 if (modes[m].channels[0].freq < 4000) { 6317 modes[m].mode = HOSTAPD_MODE_IEEE80211B; 6318 for (i = 0; i < modes[m].num_rates; i++) { 6319 if (modes[m].rates[i] > 200) { 6320 modes[m].mode = HOSTAPD_MODE_IEEE80211G; 6321 break; 6322 } 6323 } 6324 } else if (modes[m].channels[0].freq > 50000) 6325 modes[m].mode = HOSTAPD_MODE_IEEE80211AD; 6326 else 6327 modes[m].mode = HOSTAPD_MODE_IEEE80211A; 6328 } 6329 6330 /* If only 802.11g mode is included, use it to construct matching 6331 * 802.11b mode data. */ 6332 6333 for (m = 0; m < *num_modes; m++) { 6334 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B) 6335 return modes; /* 802.11b already included */ 6336 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G) 6337 mode11g_idx = m; 6338 } 6339 6340 if (mode11g_idx < 0) 6341 return modes; /* 2.4 GHz band not supported at all */ 6342 6343 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes)); 6344 if (nmodes == NULL) 6345 return modes; /* Could not add 802.11b mode */ 6346 6347 mode = &nmodes[*num_modes]; 6348 os_memset(mode, 0, sizeof(*mode)); 6349 (*num_modes)++; 6350 modes = nmodes; 6351 6352 mode->mode = HOSTAPD_MODE_IEEE80211B; 6353 6354 mode11g = &modes[mode11g_idx]; 6355 mode->num_channels = mode11g->num_channels; 6356 mode->channels = os_malloc(mode11g->num_channels * 6357 sizeof(struct hostapd_channel_data)); 6358 if (mode->channels == NULL) { 6359 (*num_modes)--; 6360 return modes; /* Could not add 802.11b mode */ 6361 } 6362 os_memcpy(mode->channels, mode11g->channels, 6363 mode11g->num_channels * sizeof(struct hostapd_channel_data)); 6364 6365 mode->num_rates = 0; 6366 mode->rates = os_malloc(4 * sizeof(int)); 6367 if (mode->rates == NULL) { 6368 os_free(mode->channels); 6369 (*num_modes)--; 6370 return modes; /* Could not add 802.11b mode */ 6371 } 6372 6373 for (i = 0; i < mode11g->num_rates; i++) { 6374 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 && 6375 mode11g->rates[i] != 55 && mode11g->rates[i] != 110) 6376 continue; 6377 mode->rates[mode->num_rates] = mode11g->rates[i]; 6378 mode->num_rates++; 6379 if (mode->num_rates == 4) 6380 break; 6381 } 6382 6383 if (mode->num_rates == 0) { 6384 os_free(mode->channels); 6385 os_free(mode->rates); 6386 (*num_modes)--; 6387 return modes; /* No 802.11b rates */ 6388 } 6389 6390 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g " 6391 "information"); 6392 6393 return modes; 6394} 6395 6396 6397static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start, 6398 int end) 6399{ 6400 int c; 6401 6402 for (c = 0; c < mode->num_channels; c++) { 6403 struct hostapd_channel_data *chan = &mode->channels[c]; 6404 if (chan->freq - 10 >= start && chan->freq + 10 <= end) 6405 chan->flag |= HOSTAPD_CHAN_HT40; 6406 } 6407} 6408 6409 6410static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start, 6411 int end) 6412{ 6413 int c; 6414 6415 for (c = 0; c < mode->num_channels; c++) { 6416 struct hostapd_channel_data *chan = &mode->channels[c]; 6417 if (!(chan->flag & HOSTAPD_CHAN_HT40)) 6418 continue; 6419 if (chan->freq - 30 >= start && chan->freq - 10 <= end) 6420 chan->flag |= HOSTAPD_CHAN_HT40MINUS; 6421 if (chan->freq + 10 >= start && chan->freq + 30 <= end) 6422 chan->flag |= HOSTAPD_CHAN_HT40PLUS; 6423 } 6424} 6425 6426 6427static void nl80211_reg_rule_max_eirp(u32 start, u32 end, u32 max_eirp, 6428 struct phy_info_arg *results) 6429{ 6430 u16 m; 6431 6432 for (m = 0; m < *results->num_modes; m++) { 6433 int c; 6434 struct hostapd_hw_modes *mode = &results->modes[m]; 6435 6436 for (c = 0; c < mode->num_channels; c++) { 6437 struct hostapd_channel_data *chan = &mode->channels[c]; 6438 if ((u32) chan->freq - 10 >= start && 6439 (u32) chan->freq + 10 <= end) 6440 chan->max_tx_power = max_eirp; 6441 } 6442 } 6443} 6444 6445 6446static void nl80211_reg_rule_ht40(u32 start, u32 end, 6447 struct phy_info_arg *results) 6448{ 6449 u16 m; 6450 6451 for (m = 0; m < *results->num_modes; m++) { 6452 if (!(results->modes[m].ht_capab & 6453 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6454 continue; 6455 nl80211_set_ht40_mode(&results->modes[m], start, end); 6456 } 6457} 6458 6459 6460static void nl80211_reg_rule_sec(struct nlattr *tb[], 6461 struct phy_info_arg *results) 6462{ 6463 u32 start, end, max_bw; 6464 u16 m; 6465 6466 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6467 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 6468 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 6469 return; 6470 6471 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6472 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6473 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6474 6475 if (max_bw < 20) 6476 return; 6477 6478 for (m = 0; m < *results->num_modes; m++) { 6479 if (!(results->modes[m].ht_capab & 6480 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6481 continue; 6482 nl80211_set_ht40_mode_sec(&results->modes[m], start, end); 6483 } 6484} 6485 6486 6487static void nl80211_set_vht_mode(struct hostapd_hw_modes *mode, int start, 6488 int end) 6489{ 6490 int c; 6491 6492 for (c = 0; c < mode->num_channels; c++) { 6493 struct hostapd_channel_data *chan = &mode->channels[c]; 6494 if (chan->freq - 10 >= start && chan->freq + 70 <= end) 6495 chan->flag |= HOSTAPD_CHAN_VHT_10_70; 6496 6497 if (chan->freq - 30 >= start && chan->freq + 50 <= end) 6498 chan->flag |= HOSTAPD_CHAN_VHT_30_50; 6499 6500 if (chan->freq - 50 >= start && chan->freq + 30 <= end) 6501 chan->flag |= HOSTAPD_CHAN_VHT_50_30; 6502 6503 if (chan->freq - 70 >= start && chan->freq + 10 <= end) 6504 chan->flag |= HOSTAPD_CHAN_VHT_70_10; 6505 } 6506} 6507 6508 6509static void nl80211_reg_rule_vht(struct nlattr *tb[], 6510 struct phy_info_arg *results) 6511{ 6512 u32 start, end, max_bw; 6513 u16 m; 6514 6515 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6516 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 6517 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 6518 return; 6519 6520 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6521 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6522 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6523 6524 if (max_bw < 80) 6525 return; 6526 6527 for (m = 0; m < *results->num_modes; m++) { 6528 if (!(results->modes[m].ht_capab & 6529 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6530 continue; 6531 /* TODO: use a real VHT support indication */ 6532 if (!results->modes[m].vht_capab) 6533 continue; 6534 6535 nl80211_set_vht_mode(&results->modes[m], start, end); 6536 } 6537} 6538 6539 6540static int nl80211_get_reg(struct nl_msg *msg, void *arg) 6541{ 6542 struct phy_info_arg *results = arg; 6543 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 6544 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 6545 struct nlattr *nl_rule; 6546 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1]; 6547 int rem_rule; 6548 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 6549 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, 6550 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, 6551 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, 6552 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, 6553 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, 6554 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, 6555 }; 6556 6557 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 6558 genlmsg_attrlen(gnlh, 0), NULL); 6559 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] || 6560 !tb_msg[NL80211_ATTR_REG_RULES]) { 6561 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information " 6562 "available"); 6563 return NL_SKIP; 6564 } 6565 6566 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s", 6567 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2])); 6568 6569 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6570 { 6571 u32 start, end, max_eirp = 0, max_bw = 0; 6572 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6573 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6574 if (tb_rule[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6575 tb_rule[NL80211_ATTR_FREQ_RANGE_END] == NULL) 6576 continue; 6577 start = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6578 end = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6579 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) 6580 max_eirp = nla_get_u32(tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) / 100; 6581 if (tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) 6582 max_bw = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6583 6584 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz %u mBm", 6585 start, end, max_bw, max_eirp); 6586 if (max_bw >= 40) 6587 nl80211_reg_rule_ht40(start, end, results); 6588 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) 6589 nl80211_reg_rule_max_eirp(start, end, max_eirp, 6590 results); 6591 } 6592 6593 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6594 { 6595 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6596 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6597 nl80211_reg_rule_sec(tb_rule, results); 6598 } 6599 6600 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6601 { 6602 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6603 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6604 nl80211_reg_rule_vht(tb_rule, results); 6605 } 6606 6607 return NL_SKIP; 6608} 6609 6610 6611static int nl80211_set_regulatory_flags(struct wpa_driver_nl80211_data *drv, 6612 struct phy_info_arg *results) 6613{ 6614 struct nl_msg *msg; 6615 6616 msg = nlmsg_alloc(); 6617 if (!msg) 6618 return -ENOMEM; 6619 6620 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 6621 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results); 6622} 6623 6624 6625static struct hostapd_hw_modes * 6626wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags) 6627{ 6628 u32 feat; 6629 struct i802_bss *bss = priv; 6630 struct wpa_driver_nl80211_data *drv = bss->drv; 6631 struct nl_msg *msg; 6632 struct phy_info_arg result = { 6633 .num_modes = num_modes, 6634 .modes = NULL, 6635 .last_mode = -1, 6636 }; 6637 6638 *num_modes = 0; 6639 *flags = 0; 6640 6641 msg = nlmsg_alloc(); 6642 if (!msg) 6643 return NULL; 6644 6645 feat = get_nl80211_protocol_features(drv); 6646 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 6647 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 6648 else 6649 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 6650 6651 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 6652 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6653 6654 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) { 6655 nl80211_set_regulatory_flags(drv, &result); 6656 return wpa_driver_nl80211_postprocess_modes(result.modes, 6657 num_modes); 6658 } 6659 msg = NULL; 6660 nla_put_failure: 6661 nlmsg_free(msg); 6662 return NULL; 6663} 6664 6665 6666static int wpa_driver_nl80211_send_mntr(struct wpa_driver_nl80211_data *drv, 6667 const void *data, size_t len, 6668 int encrypt, int noack) 6669{ 6670 __u8 rtap_hdr[] = { 6671 0x00, 0x00, /* radiotap version */ 6672 0x0e, 0x00, /* radiotap length */ 6673 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */ 6674 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */ 6675 0x00, /* padding */ 6676 0x00, 0x00, /* RX and TX flags to indicate that */ 6677 0x00, 0x00, /* this is the injected frame directly */ 6678 }; 6679 struct iovec iov[2] = { 6680 { 6681 .iov_base = &rtap_hdr, 6682 .iov_len = sizeof(rtap_hdr), 6683 }, 6684 { 6685 .iov_base = (void *) data, 6686 .iov_len = len, 6687 } 6688 }; 6689 struct msghdr msg = { 6690 .msg_name = NULL, 6691 .msg_namelen = 0, 6692 .msg_iov = iov, 6693 .msg_iovlen = 2, 6694 .msg_control = NULL, 6695 .msg_controllen = 0, 6696 .msg_flags = 0, 6697 }; 6698 int res; 6699 u16 txflags = 0; 6700 6701 if (encrypt) 6702 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP; 6703 6704 if (drv->monitor_sock < 0) { 6705 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available " 6706 "for %s", __func__); 6707 return -1; 6708 } 6709 6710 if (noack) 6711 txflags |= IEEE80211_RADIOTAP_F_TX_NOACK; 6712 WPA_PUT_LE16(&rtap_hdr[12], txflags); 6713 6714 res = sendmsg(drv->monitor_sock, &msg, 0); 6715 if (res < 0) { 6716 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno)); 6717 return -1; 6718 } 6719 return 0; 6720} 6721 6722 6723static int wpa_driver_nl80211_send_frame(struct i802_bss *bss, 6724 const void *data, size_t len, 6725 int encrypt, int noack, 6726 unsigned int freq, int no_cck, 6727 int offchanok, unsigned int wait_time) 6728{ 6729 struct wpa_driver_nl80211_data *drv = bss->drv; 6730 u64 cookie; 6731 int res; 6732 6733 if (freq == 0) { 6734 wpa_printf(MSG_DEBUG, "nl80211: send_frame - Use bss->freq=%u", 6735 bss->freq); 6736 freq = bss->freq; 6737 } 6738 6739 if (drv->use_monitor) { 6740 wpa_printf(MSG_DEBUG, "nl80211: send_frame(freq=%u bss->freq=%u) -> send_mntr", 6741 freq, bss->freq); 6742 return wpa_driver_nl80211_send_mntr(drv, data, len, 6743 encrypt, noack); 6744 } 6745 6746 wpa_printf(MSG_DEBUG, "nl80211: send_frame -> send_frame_cmd"); 6747 res = nl80211_send_frame_cmd(bss, freq, wait_time, data, len, 6748 &cookie, no_cck, noack, offchanok); 6749 if (res == 0 && !noack) { 6750 const struct ieee80211_mgmt *mgmt; 6751 u16 fc; 6752 6753 mgmt = (const struct ieee80211_mgmt *) data; 6754 fc = le_to_host16(mgmt->frame_control); 6755 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6756 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_ACTION) { 6757 wpa_printf(MSG_MSGDUMP, 6758 "nl80211: Update send_action_cookie from 0x%llx to 0x%llx", 6759 (long long unsigned int) 6760 drv->send_action_cookie, 6761 (long long unsigned int) cookie); 6762 drv->send_action_cookie = cookie; 6763 } 6764 } 6765 6766 return res; 6767} 6768 6769 6770static int wpa_driver_nl80211_send_mlme(struct i802_bss *bss, const u8 *data, 6771 size_t data_len, int noack, 6772 unsigned int freq, int no_cck, 6773 int offchanok, 6774 unsigned int wait_time) 6775{ 6776 struct wpa_driver_nl80211_data *drv = bss->drv; 6777 struct ieee80211_mgmt *mgmt; 6778 int encrypt = 1; 6779 u16 fc; 6780 6781 mgmt = (struct ieee80211_mgmt *) data; 6782 fc = le_to_host16(mgmt->frame_control); 6783 wpa_printf(MSG_DEBUG, "nl80211: send_mlme - noack=%d freq=%u no_cck=%d offchanok=%d wait_time=%u fc=0x%x nlmode=%d", 6784 noack, freq, no_cck, offchanok, wait_time, fc, drv->nlmode); 6785 6786 if ((is_sta_interface(drv->nlmode) || 6787 drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) && 6788 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6789 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) { 6790 /* 6791 * The use of last_mgmt_freq is a bit of a hack, 6792 * but it works due to the single-threaded nature 6793 * of wpa_supplicant. 6794 */ 6795 if (freq == 0) { 6796 wpa_printf(MSG_DEBUG, "nl80211: Use last_mgmt_freq=%d", 6797 drv->last_mgmt_freq); 6798 freq = drv->last_mgmt_freq; 6799 } 6800 return nl80211_send_frame_cmd(bss, freq, 0, 6801 data, data_len, NULL, 1, noack, 6802 1); 6803 } 6804 6805 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) { 6806 if (freq == 0) { 6807 wpa_printf(MSG_DEBUG, "nl80211: Use bss->freq=%d", 6808 bss->freq); 6809 freq = bss->freq; 6810 } 6811 return nl80211_send_frame_cmd(bss, freq, 6812 (int) freq == bss->freq ? 0 : 6813 wait_time, 6814 data, data_len, 6815 &drv->send_action_cookie, 6816 no_cck, noack, offchanok); 6817 } 6818 6819 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6820 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) { 6821 /* 6822 * Only one of the authentication frame types is encrypted. 6823 * In order for static WEP encryption to work properly (i.e., 6824 * to not encrypt the frame), we need to tell mac80211 about 6825 * the frames that must not be encrypted. 6826 */ 6827 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg); 6828 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction); 6829 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3) 6830 encrypt = 0; 6831 } 6832 6833 wpa_printf(MSG_DEBUG, "nl80211: send_mlme -> send_frame"); 6834 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 6835 noack, freq, no_cck, offchanok, 6836 wait_time); 6837} 6838 6839 6840static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble, 6841 int slot, int ht_opmode, int ap_isolate, 6842 int *basic_rates) 6843{ 6844 struct wpa_driver_nl80211_data *drv = bss->drv; 6845 struct nl_msg *msg; 6846 6847 msg = nlmsg_alloc(); 6848 if (!msg) 6849 return -ENOMEM; 6850 6851 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS); 6852 6853 if (cts >= 0) 6854 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts); 6855 if (preamble >= 0) 6856 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble); 6857 if (slot >= 0) 6858 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot); 6859 if (ht_opmode >= 0) 6860 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode); 6861 if (ap_isolate >= 0) 6862 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate); 6863 6864 if (basic_rates) { 6865 u8 rates[NL80211_MAX_SUPP_RATES]; 6866 u8 rates_len = 0; 6867 int i; 6868 6869 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; 6870 i++) 6871 rates[rates_len++] = basic_rates[i] / 5; 6872 6873 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates); 6874 } 6875 6876 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 6877 6878 return send_and_recv_msgs(drv, msg, NULL, NULL); 6879 nla_put_failure: 6880 nlmsg_free(msg); 6881 return -ENOBUFS; 6882} 6883 6884 6885static int wpa_driver_nl80211_set_acl(void *priv, 6886 struct hostapd_acl_params *params) 6887{ 6888 struct i802_bss *bss = priv; 6889 struct wpa_driver_nl80211_data *drv = bss->drv; 6890 struct nl_msg *msg; 6891 struct nlattr *acl; 6892 unsigned int i; 6893 int ret = 0; 6894 6895 if (!(drv->capa.max_acl_mac_addrs)) 6896 return -ENOTSUP; 6897 6898 if (params->num_mac_acl > drv->capa.max_acl_mac_addrs) 6899 return -ENOTSUP; 6900 6901 msg = nlmsg_alloc(); 6902 if (!msg) 6903 return -ENOMEM; 6904 6905 wpa_printf(MSG_DEBUG, "nl80211: Set %s ACL (num_mac_acl=%u)", 6906 params->acl_policy ? "Accept" : "Deny", params->num_mac_acl); 6907 6908 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_MAC_ACL); 6909 6910 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6911 6912 NLA_PUT_U32(msg, NL80211_ATTR_ACL_POLICY, params->acl_policy ? 6913 NL80211_ACL_POLICY_DENY_UNLESS_LISTED : 6914 NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED); 6915 6916 acl = nla_nest_start(msg, NL80211_ATTR_MAC_ADDRS); 6917 if (acl == NULL) 6918 goto nla_put_failure; 6919 6920 for (i = 0; i < params->num_mac_acl; i++) 6921 NLA_PUT(msg, i + 1, ETH_ALEN, params->mac_acl[i].addr); 6922 6923 nla_nest_end(msg, acl); 6924 6925 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6926 msg = NULL; 6927 if (ret) { 6928 wpa_printf(MSG_DEBUG, "nl80211: Failed to set MAC ACL: %d (%s)", 6929 ret, strerror(-ret)); 6930 } 6931 6932nla_put_failure: 6933 nlmsg_free(msg); 6934 6935 return ret; 6936} 6937 6938 6939static int wpa_driver_nl80211_set_ap(void *priv, 6940 struct wpa_driver_ap_params *params) 6941{ 6942 struct i802_bss *bss = priv; 6943 struct wpa_driver_nl80211_data *drv = bss->drv; 6944 struct nl_msg *msg; 6945 u8 cmd = NL80211_CMD_NEW_BEACON; 6946 int ret; 6947 int beacon_set; 6948 int ifindex = if_nametoindex(bss->ifname); 6949 int num_suites; 6950 u32 suites[10], suite; 6951 u32 ver; 6952 6953 beacon_set = bss->beacon_set; 6954 6955 msg = nlmsg_alloc(); 6956 if (!msg) 6957 return -ENOMEM; 6958 6959 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)", 6960 beacon_set); 6961 if (beacon_set) 6962 cmd = NL80211_CMD_SET_BEACON; 6963 6964 nl80211_cmd(drv, msg, 0, cmd); 6965 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon head", 6966 params->head, params->head_len); 6967 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head); 6968 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon tail", 6969 params->tail, params->tail_len); 6970 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail); 6971 wpa_printf(MSG_DEBUG, "nl80211: ifindex=%d", ifindex); 6972 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 6973 wpa_printf(MSG_DEBUG, "nl80211: beacon_int=%d", params->beacon_int); 6974 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int); 6975 wpa_printf(MSG_DEBUG, "nl80211: dtim_period=%d", params->dtim_period); 6976 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period); 6977 wpa_hexdump_ascii(MSG_DEBUG, "nl80211: ssid", 6978 params->ssid, params->ssid_len); 6979 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 6980 params->ssid); 6981 if (params->proberesp && params->proberesp_len) { 6982 wpa_hexdump(MSG_DEBUG, "nl80211: proberesp (offload)", 6983 params->proberesp, params->proberesp_len); 6984 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len, 6985 params->proberesp); 6986 } 6987 switch (params->hide_ssid) { 6988 case NO_SSID_HIDING: 6989 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID not in use"); 6990 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 6991 NL80211_HIDDEN_SSID_NOT_IN_USE); 6992 break; 6993 case HIDDEN_SSID_ZERO_LEN: 6994 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero len"); 6995 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 6996 NL80211_HIDDEN_SSID_ZERO_LEN); 6997 break; 6998 case HIDDEN_SSID_ZERO_CONTENTS: 6999 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero contents"); 7000 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 7001 NL80211_HIDDEN_SSID_ZERO_CONTENTS); 7002 break; 7003 } 7004 wpa_printf(MSG_DEBUG, "nl80211: privacy=%d", params->privacy); 7005 if (params->privacy) 7006 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 7007 wpa_printf(MSG_DEBUG, "nl80211: auth_algs=0x%x", params->auth_algs); 7008 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) == 7009 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) { 7010 /* Leave out the attribute */ 7011 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED) 7012 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 7013 NL80211_AUTHTYPE_SHARED_KEY); 7014 else 7015 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 7016 NL80211_AUTHTYPE_OPEN_SYSTEM); 7017 7018 wpa_printf(MSG_DEBUG, "nl80211: wpa_version=0x%x", params->wpa_version); 7019 ver = 0; 7020 if (params->wpa_version & WPA_PROTO_WPA) 7021 ver |= NL80211_WPA_VERSION_1; 7022 if (params->wpa_version & WPA_PROTO_RSN) 7023 ver |= NL80211_WPA_VERSION_2; 7024 if (ver) 7025 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 7026 7027 wpa_printf(MSG_DEBUG, "nl80211: key_mgmt_suites=0x%x", 7028 params->key_mgmt_suites); 7029 num_suites = 0; 7030 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X) 7031 suites[num_suites++] = WLAN_AKM_SUITE_8021X; 7032 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK) 7033 suites[num_suites++] = WLAN_AKM_SUITE_PSK; 7034 if (num_suites) { 7035 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES, 7036 num_suites * sizeof(u32), suites); 7037 } 7038 7039 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X && 7040 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)) 7041 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT); 7042 7043 wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x", 7044 params->pairwise_ciphers); 7045 num_suites = wpa_cipher_to_cipher_suites(params->pairwise_ciphers, 7046 suites, ARRAY_SIZE(suites)); 7047 if (num_suites) { 7048 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, 7049 num_suites * sizeof(u32), suites); 7050 } 7051 7052 wpa_printf(MSG_DEBUG, "nl80211: group_cipher=0x%x", 7053 params->group_cipher); 7054 suite = wpa_cipher_to_cipher_suite(params->group_cipher); 7055 if (suite) 7056 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, suite); 7057 7058 if (params->beacon_ies) { 7059 wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies", 7060 params->beacon_ies); 7061 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies), 7062 wpabuf_head(params->beacon_ies)); 7063 } 7064 if (params->proberesp_ies) { 7065 wpa_hexdump_buf(MSG_DEBUG, "nl80211: proberesp_ies", 7066 params->proberesp_ies); 7067 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, 7068 wpabuf_len(params->proberesp_ies), 7069 wpabuf_head(params->proberesp_ies)); 7070 } 7071 if (params->assocresp_ies) { 7072 wpa_hexdump_buf(MSG_DEBUG, "nl80211: assocresp_ies", 7073 params->assocresp_ies); 7074 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP, 7075 wpabuf_len(params->assocresp_ies), 7076 wpabuf_head(params->assocresp_ies)); 7077 } 7078 7079 if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) { 7080 wpa_printf(MSG_DEBUG, "nl80211: ap_max_inactivity=%d", 7081 params->ap_max_inactivity); 7082 NLA_PUT_U16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT, 7083 params->ap_max_inactivity); 7084 } 7085 7086 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7087 if (ret) { 7088 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)", 7089 ret, strerror(-ret)); 7090 } else { 7091 bss->beacon_set = 1; 7092 nl80211_set_bss(bss, params->cts_protect, params->preamble, 7093 params->short_slot_time, params->ht_opmode, 7094 params->isolate, params->basic_rates); 7095 } 7096 return ret; 7097 nla_put_failure: 7098 nlmsg_free(msg); 7099 return -ENOBUFS; 7100} 7101 7102 7103static int nl80211_put_freq_params(struct nl_msg *msg, 7104 struct hostapd_freq_params *freq) 7105{ 7106 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); 7107 if (freq->vht_enabled) { 7108 switch (freq->bandwidth) { 7109 case 20: 7110 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7111 NL80211_CHAN_WIDTH_20); 7112 break; 7113 case 40: 7114 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7115 NL80211_CHAN_WIDTH_40); 7116 break; 7117 case 80: 7118 if (freq->center_freq2) 7119 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7120 NL80211_CHAN_WIDTH_80P80); 7121 else 7122 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7123 NL80211_CHAN_WIDTH_80); 7124 break; 7125 case 160: 7126 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7127 NL80211_CHAN_WIDTH_160); 7128 break; 7129 default: 7130 return -EINVAL; 7131 } 7132 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); 7133 if (freq->center_freq2) 7134 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, 7135 freq->center_freq2); 7136 } else if (freq->ht_enabled) { 7137 switch (freq->sec_channel_offset) { 7138 case -1: 7139 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 7140 NL80211_CHAN_HT40MINUS); 7141 break; 7142 case 1: 7143 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 7144 NL80211_CHAN_HT40PLUS); 7145 break; 7146 default: 7147 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 7148 NL80211_CHAN_HT20); 7149 break; 7150 } 7151 } 7152 return 0; 7153 7154nla_put_failure: 7155 return -ENOBUFS; 7156} 7157 7158 7159static int wpa_driver_nl80211_set_freq(struct i802_bss *bss, 7160 struct hostapd_freq_params *freq) 7161{ 7162 struct wpa_driver_nl80211_data *drv = bss->drv; 7163 struct nl_msg *msg; 7164 int ret; 7165 7166 wpa_printf(MSG_DEBUG, 7167 "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d, bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)", 7168 freq->freq, freq->ht_enabled, freq->vht_enabled, 7169 freq->bandwidth, freq->center_freq1, freq->center_freq2); 7170 msg = nlmsg_alloc(); 7171 if (!msg) 7172 return -1; 7173 7174 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 7175 7176 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7177 if (nl80211_put_freq_params(msg, freq) < 0) 7178 goto nla_put_failure; 7179 7180 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7181 msg = NULL; 7182 if (ret == 0) { 7183 bss->freq = freq->freq; 7184 return 0; 7185 } 7186 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): " 7187 "%d (%s)", freq->freq, ret, strerror(-ret)); 7188nla_put_failure: 7189 nlmsg_free(msg); 7190 return -1; 7191} 7192 7193 7194static u32 sta_flags_nl80211(int flags) 7195{ 7196 u32 f = 0; 7197 7198 if (flags & WPA_STA_AUTHORIZED) 7199 f |= BIT(NL80211_STA_FLAG_AUTHORIZED); 7200 if (flags & WPA_STA_WMM) 7201 f |= BIT(NL80211_STA_FLAG_WME); 7202 if (flags & WPA_STA_SHORT_PREAMBLE) 7203 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); 7204 if (flags & WPA_STA_MFP) 7205 f |= BIT(NL80211_STA_FLAG_MFP); 7206 if (flags & WPA_STA_TDLS_PEER) 7207 f |= BIT(NL80211_STA_FLAG_TDLS_PEER); 7208 7209 return f; 7210} 7211 7212 7213static int wpa_driver_nl80211_sta_add(void *priv, 7214 struct hostapd_sta_add_params *params) 7215{ 7216 struct i802_bss *bss = priv; 7217 struct wpa_driver_nl80211_data *drv = bss->drv; 7218 struct nl_msg *msg; 7219 struct nl80211_sta_flag_update upd; 7220 int ret = -ENOBUFS; 7221 7222 if ((params->flags & WPA_STA_TDLS_PEER) && 7223 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 7224 return -EOPNOTSUPP; 7225 7226 msg = nlmsg_alloc(); 7227 if (!msg) 7228 return -ENOMEM; 7229 7230 wpa_printf(MSG_DEBUG, "nl80211: %s STA " MACSTR, 7231 params->set ? "Set" : "Add", MAC2STR(params->addr)); 7232 nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION : 7233 NL80211_CMD_NEW_STATION); 7234 7235 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 7236 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr); 7237 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len, 7238 params->supp_rates); 7239 wpa_hexdump(MSG_DEBUG, " * supported rates", params->supp_rates, 7240 params->supp_rates_len); 7241 if (!params->set) { 7242 if (params->aid) { 7243 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid); 7244 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid); 7245 } else { 7246 /* 7247 * cfg80211 validates that AID is non-zero, so we have 7248 * to make this a non-zero value for the TDLS case where 7249 * a dummy STA entry is used for now. 7250 */ 7251 wpa_printf(MSG_DEBUG, " * aid=1 (TDLS workaround)"); 7252 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, 1); 7253 } 7254 wpa_printf(MSG_DEBUG, " * listen_interval=%u", 7255 params->listen_interval); 7256 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, 7257 params->listen_interval); 7258 } else if (params->aid && (params->flags & WPA_STA_TDLS_PEER)) { 7259 wpa_printf(MSG_DEBUG, " * peer_aid=%u", params->aid); 7260 NLA_PUT_U16(msg, NL80211_ATTR_PEER_AID, params->aid); 7261 } 7262 if (params->ht_capabilities) { 7263 wpa_hexdump(MSG_DEBUG, " * ht_capabilities", 7264 (u8 *) params->ht_capabilities, 7265 sizeof(*params->ht_capabilities)); 7266 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, 7267 sizeof(*params->ht_capabilities), 7268 params->ht_capabilities); 7269 } 7270 7271 if (params->vht_capabilities) { 7272 wpa_hexdump(MSG_DEBUG, " * vht_capabilities", 7273 (u8 *) params->vht_capabilities, 7274 sizeof(*params->vht_capabilities)); 7275 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, 7276 sizeof(*params->vht_capabilities), 7277 params->vht_capabilities); 7278 } 7279 7280 wpa_printf(MSG_DEBUG, " * capability=0x%x", params->capability); 7281 NLA_PUT_U16(msg, NL80211_ATTR_STA_CAPABILITY, params->capability); 7282 7283 if (params->ext_capab) { 7284 wpa_hexdump(MSG_DEBUG, " * ext_capab", 7285 params->ext_capab, params->ext_capab_len); 7286 NLA_PUT(msg, NL80211_ATTR_STA_EXT_CAPABILITY, 7287 params->ext_capab_len, params->ext_capab); 7288 } 7289 7290 if (params->supp_channels) { 7291 wpa_hexdump(MSG_DEBUG, " * supported channels", 7292 params->supp_channels, params->supp_channels_len); 7293 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_CHANNELS, 7294 params->supp_channels_len, params->supp_channels); 7295 } 7296 7297 if (params->supp_oper_classes) { 7298 wpa_hexdump(MSG_DEBUG, " * supported operating classes", 7299 params->supp_oper_classes, 7300 params->supp_oper_classes_len); 7301 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES, 7302 params->supp_oper_classes_len, 7303 params->supp_oper_classes); 7304 } 7305 7306 os_memset(&upd, 0, sizeof(upd)); 7307 upd.mask = sta_flags_nl80211(params->flags); 7308 upd.set = upd.mask; 7309 wpa_printf(MSG_DEBUG, " * flags set=0x%x mask=0x%x", 7310 upd.set, upd.mask); 7311 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 7312 7313 if (params->flags & WPA_STA_WMM) { 7314 struct nlattr *wme = nla_nest_start(msg, NL80211_ATTR_STA_WME); 7315 7316 if (!wme) 7317 goto nla_put_failure; 7318 7319 wpa_printf(MSG_DEBUG, " * qosinfo=0x%x", params->qosinfo); 7320 NLA_PUT_U8(msg, NL80211_STA_WME_UAPSD_QUEUES, 7321 params->qosinfo & WMM_QOSINFO_STA_AC_MASK); 7322 NLA_PUT_U8(msg, NL80211_STA_WME_MAX_SP, 7323 (params->qosinfo >> WMM_QOSINFO_STA_SP_SHIFT) & 7324 WMM_QOSINFO_STA_SP_MASK); 7325 nla_nest_end(msg, wme); 7326 } 7327 7328 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7329 msg = NULL; 7330 if (ret) 7331 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION " 7332 "result: %d (%s)", params->set ? "SET" : "NEW", ret, 7333 strerror(-ret)); 7334 if (ret == -EEXIST) 7335 ret = 0; 7336 nla_put_failure: 7337 nlmsg_free(msg); 7338 return ret; 7339} 7340 7341 7342static int wpa_driver_nl80211_sta_remove(struct i802_bss *bss, const u8 *addr) 7343{ 7344 struct wpa_driver_nl80211_data *drv = bss->drv; 7345 struct nl_msg *msg; 7346 int ret; 7347 7348 msg = nlmsg_alloc(); 7349 if (!msg) 7350 return -ENOMEM; 7351 7352 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 7353 7354 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 7355 if_nametoindex(bss->ifname)); 7356 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 7357 7358 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7359 wpa_printf(MSG_DEBUG, "nl80211: sta_remove -> DEL_STATION %s " MACSTR 7360 " --> %d (%s)", 7361 bss->ifname, MAC2STR(addr), ret, strerror(-ret)); 7362 if (ret == -ENOENT) 7363 return 0; 7364 return ret; 7365 nla_put_failure: 7366 nlmsg_free(msg); 7367 return -ENOBUFS; 7368} 7369 7370 7371static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, 7372 int ifidx) 7373{ 7374 struct nl_msg *msg; 7375 7376 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx); 7377 7378 /* stop listening for EAPOL on this interface */ 7379 del_ifidx(drv, ifidx); 7380 7381 msg = nlmsg_alloc(); 7382 if (!msg) 7383 goto nla_put_failure; 7384 7385 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 7386 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx); 7387 7388 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 7389 return; 7390 msg = NULL; 7391 nla_put_failure: 7392 nlmsg_free(msg); 7393 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx); 7394} 7395 7396 7397static const char * nl80211_iftype_str(enum nl80211_iftype mode) 7398{ 7399 switch (mode) { 7400 case NL80211_IFTYPE_ADHOC: 7401 return "ADHOC"; 7402 case NL80211_IFTYPE_STATION: 7403 return "STATION"; 7404 case NL80211_IFTYPE_AP: 7405 return "AP"; 7406 case NL80211_IFTYPE_AP_VLAN: 7407 return "AP_VLAN"; 7408 case NL80211_IFTYPE_WDS: 7409 return "WDS"; 7410 case NL80211_IFTYPE_MONITOR: 7411 return "MONITOR"; 7412 case NL80211_IFTYPE_MESH_POINT: 7413 return "MESH_POINT"; 7414 case NL80211_IFTYPE_P2P_CLIENT: 7415 return "P2P_CLIENT"; 7416 case NL80211_IFTYPE_P2P_GO: 7417 return "P2P_GO"; 7418 case NL80211_IFTYPE_P2P_DEVICE: 7419 return "P2P_DEVICE"; 7420 default: 7421 return "unknown"; 7422 } 7423} 7424 7425 7426static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv, 7427 const char *ifname, 7428 enum nl80211_iftype iftype, 7429 const u8 *addr, int wds, 7430 int (*handler)(struct nl_msg *, void *), 7431 void *arg) 7432{ 7433 struct nl_msg *msg; 7434 int ifidx; 7435 int ret = -ENOBUFS; 7436 7437 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)", 7438 iftype, nl80211_iftype_str(iftype)); 7439 7440 msg = nlmsg_alloc(); 7441 if (!msg) 7442 return -1; 7443 7444 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE); 7445 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 7446 goto nla_put_failure; 7447 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname); 7448 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype); 7449 7450 if (iftype == NL80211_IFTYPE_MONITOR) { 7451 struct nlattr *flags; 7452 7453 flags = nla_nest_start(msg, NL80211_ATTR_MNTR_FLAGS); 7454 if (!flags) 7455 goto nla_put_failure; 7456 7457 NLA_PUT_FLAG(msg, NL80211_MNTR_FLAG_COOK_FRAMES); 7458 7459 nla_nest_end(msg, flags); 7460 } else if (wds) { 7461 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds); 7462 } 7463 7464 ret = send_and_recv_msgs(drv, msg, handler, arg); 7465 msg = NULL; 7466 if (ret) { 7467 nla_put_failure: 7468 nlmsg_free(msg); 7469 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)", 7470 ifname, ret, strerror(-ret)); 7471 return ret; 7472 } 7473 7474 if (iftype == NL80211_IFTYPE_P2P_DEVICE) 7475 return 0; 7476 7477 ifidx = if_nametoindex(ifname); 7478 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d", 7479 ifname, ifidx); 7480 7481 if (ifidx <= 0) 7482 return -1; 7483 7484 /* start listening for EAPOL on this interface */ 7485 add_ifidx(drv, ifidx); 7486 7487 if (addr && iftype != NL80211_IFTYPE_MONITOR && 7488 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) { 7489 nl80211_remove_iface(drv, ifidx); 7490 return -1; 7491 } 7492 7493 return ifidx; 7494} 7495 7496 7497static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv, 7498 const char *ifname, enum nl80211_iftype iftype, 7499 const u8 *addr, int wds, 7500 int (*handler)(struct nl_msg *, void *), 7501 void *arg, int use_existing) 7502{ 7503 int ret; 7504 7505 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds, handler, 7506 arg); 7507 7508 /* if error occurred and interface exists already */ 7509 if (ret == -ENFILE && if_nametoindex(ifname)) { 7510 if (use_existing) { 7511 wpa_printf(MSG_DEBUG, "nl80211: Continue using existing interface %s", 7512 ifname); 7513 return -ENFILE; 7514 } 7515 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname); 7516 7517 /* Try to remove the interface that was already there. */ 7518 nl80211_remove_iface(drv, if_nametoindex(ifname)); 7519 7520 /* Try to create the interface again */ 7521 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, 7522 wds, handler, arg); 7523 } 7524 7525 if (ret >= 0 && is_p2p_net_interface(iftype)) 7526 nl80211_disable_11b_rates(drv, ret, 1); 7527 7528 return ret; 7529} 7530 7531 7532static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok) 7533{ 7534 struct ieee80211_hdr *hdr; 7535 u16 fc; 7536 union wpa_event_data event; 7537 7538 hdr = (struct ieee80211_hdr *) buf; 7539 fc = le_to_host16(hdr->frame_control); 7540 7541 os_memset(&event, 0, sizeof(event)); 7542 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 7543 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 7544 event.tx_status.dst = hdr->addr1; 7545 event.tx_status.data = buf; 7546 event.tx_status.data_len = len; 7547 event.tx_status.ack = ok; 7548 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event); 7549} 7550 7551 7552static void from_unknown_sta(struct wpa_driver_nl80211_data *drv, 7553 u8 *buf, size_t len) 7554{ 7555 struct ieee80211_hdr *hdr = (void *)buf; 7556 u16 fc; 7557 union wpa_event_data event; 7558 7559 if (len < sizeof(*hdr)) 7560 return; 7561 7562 fc = le_to_host16(hdr->frame_control); 7563 7564 os_memset(&event, 0, sizeof(event)); 7565 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len); 7566 event.rx_from_unknown.addr = hdr->addr2; 7567 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) == 7568 (WLAN_FC_FROMDS | WLAN_FC_TODS); 7569 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 7570} 7571 7572 7573static void handle_frame(struct wpa_driver_nl80211_data *drv, 7574 u8 *buf, size_t len, int datarate, int ssi_signal) 7575{ 7576 struct ieee80211_hdr *hdr; 7577 u16 fc; 7578 union wpa_event_data event; 7579 7580 hdr = (struct ieee80211_hdr *) buf; 7581 fc = le_to_host16(hdr->frame_control); 7582 7583 switch (WLAN_FC_GET_TYPE(fc)) { 7584 case WLAN_FC_TYPE_MGMT: 7585 os_memset(&event, 0, sizeof(event)); 7586 event.rx_mgmt.frame = buf; 7587 event.rx_mgmt.frame_len = len; 7588 event.rx_mgmt.datarate = datarate; 7589 event.rx_mgmt.ssi_signal = ssi_signal; 7590 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 7591 break; 7592 case WLAN_FC_TYPE_CTRL: 7593 /* can only get here with PS-Poll frames */ 7594 wpa_printf(MSG_DEBUG, "CTRL"); 7595 from_unknown_sta(drv, buf, len); 7596 break; 7597 case WLAN_FC_TYPE_DATA: 7598 from_unknown_sta(drv, buf, len); 7599 break; 7600 } 7601} 7602 7603 7604static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx) 7605{ 7606 struct wpa_driver_nl80211_data *drv = eloop_ctx; 7607 int len; 7608 unsigned char buf[3000]; 7609 struct ieee80211_radiotap_iterator iter; 7610 int ret; 7611 int datarate = 0, ssi_signal = 0; 7612 int injected = 0, failed = 0, rxflags = 0; 7613 7614 len = recv(sock, buf, sizeof(buf), 0); 7615 if (len < 0) { 7616 wpa_printf(MSG_ERROR, "nl80211: Monitor socket recv failed: %s", 7617 strerror(errno)); 7618 return; 7619 } 7620 7621 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) { 7622 wpa_printf(MSG_INFO, "nl80211: received invalid radiotap frame"); 7623 return; 7624 } 7625 7626 while (1) { 7627 ret = ieee80211_radiotap_iterator_next(&iter); 7628 if (ret == -ENOENT) 7629 break; 7630 if (ret) { 7631 wpa_printf(MSG_INFO, "nl80211: received invalid radiotap frame (%d)", 7632 ret); 7633 return; 7634 } 7635 switch (iter.this_arg_index) { 7636 case IEEE80211_RADIOTAP_FLAGS: 7637 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS) 7638 len -= 4; 7639 break; 7640 case IEEE80211_RADIOTAP_RX_FLAGS: 7641 rxflags = 1; 7642 break; 7643 case IEEE80211_RADIOTAP_TX_FLAGS: 7644 injected = 1; 7645 failed = le_to_host16((*(uint16_t *) iter.this_arg)) & 7646 IEEE80211_RADIOTAP_F_TX_FAIL; 7647 break; 7648 case IEEE80211_RADIOTAP_DATA_RETRIES: 7649 break; 7650 case IEEE80211_RADIOTAP_CHANNEL: 7651 /* TODO: convert from freq/flags to channel number */ 7652 break; 7653 case IEEE80211_RADIOTAP_RATE: 7654 datarate = *iter.this_arg * 5; 7655 break; 7656 case IEEE80211_RADIOTAP_DBM_ANTSIGNAL: 7657 ssi_signal = (s8) *iter.this_arg; 7658 break; 7659 } 7660 } 7661 7662 if (rxflags && injected) 7663 return; 7664 7665 if (!injected) 7666 handle_frame(drv, buf + iter.max_length, 7667 len - iter.max_length, datarate, ssi_signal); 7668 else 7669 handle_tx_callback(drv->ctx, buf + iter.max_length, 7670 len - iter.max_length, !failed); 7671} 7672 7673 7674/* 7675 * we post-process the filter code later and rewrite 7676 * this to the offset to the last instruction 7677 */ 7678#define PASS 0xFF 7679#define FAIL 0xFE 7680 7681static struct sock_filter msock_filter_insns[] = { 7682 /* 7683 * do a little-endian load of the radiotap length field 7684 */ 7685 /* load lower byte into A */ 7686 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2), 7687 /* put it into X (== index register) */ 7688 BPF_STMT(BPF_MISC| BPF_TAX, 0), 7689 /* load upper byte into A */ 7690 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3), 7691 /* left-shift it by 8 */ 7692 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8), 7693 /* or with X */ 7694 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0), 7695 /* put result into X */ 7696 BPF_STMT(BPF_MISC| BPF_TAX, 0), 7697 7698 /* 7699 * Allow management frames through, this also gives us those 7700 * management frames that we sent ourselves with status 7701 */ 7702 /* load the lower byte of the IEEE 802.11 frame control field */ 7703 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7704 /* mask off frame type and version */ 7705 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF), 7706 /* accept frame if it's both 0, fall through otherwise */ 7707 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0), 7708 7709 /* 7710 * TODO: add a bit to radiotap RX flags that indicates 7711 * that the sending station is not associated, then 7712 * add a filter here that filters on our DA and that flag 7713 * to allow us to deauth frames to that bad station. 7714 * 7715 * For now allow all To DS data frames through. 7716 */ 7717 /* load the IEEE 802.11 frame control field */ 7718 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0), 7719 /* mask off frame type, version and DS status */ 7720 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03), 7721 /* accept frame if version 0, type 2 and To DS, fall through otherwise 7722 */ 7723 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0), 7724 7725#if 0 7726 /* 7727 * drop non-data frames 7728 */ 7729 /* load the lower byte of the frame control field */ 7730 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7731 /* mask off QoS bit */ 7732 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c), 7733 /* drop non-data frames */ 7734 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL), 7735#endif 7736 /* load the upper byte of the frame control field */ 7737 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1), 7738 /* mask off toDS/fromDS */ 7739 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03), 7740 /* accept WDS frames */ 7741 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0), 7742 7743 /* 7744 * add header length to index 7745 */ 7746 /* load the lower byte of the frame control field */ 7747 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7748 /* mask off QoS bit */ 7749 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80), 7750 /* right shift it by 6 to give 0 or 2 */ 7751 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6), 7752 /* add data frame header length */ 7753 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24), 7754 /* add index, was start of 802.11 header */ 7755 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), 7756 /* move to index, now start of LL header */ 7757 BPF_STMT(BPF_MISC | BPF_TAX, 0), 7758 7759 /* 7760 * Accept empty data frames, we use those for 7761 * polling activity. 7762 */ 7763 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0), 7764 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0), 7765 7766 /* 7767 * Accept EAPOL frames 7768 */ 7769 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0), 7770 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL), 7771 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4), 7772 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL), 7773 7774 /* keep these last two statements or change the code below */ 7775 /* return 0 == "DROP" */ 7776 BPF_STMT(BPF_RET | BPF_K, 0), 7777 /* return ~0 == "keep all" */ 7778 BPF_STMT(BPF_RET | BPF_K, ~0), 7779}; 7780 7781static struct sock_fprog msock_filter = { 7782 .len = ARRAY_SIZE(msock_filter_insns), 7783 .filter = msock_filter_insns, 7784}; 7785 7786 7787static int add_monitor_filter(int s) 7788{ 7789 int idx; 7790 7791 /* rewrite all PASS/FAIL jump offsets */ 7792 for (idx = 0; idx < msock_filter.len; idx++) { 7793 struct sock_filter *insn = &msock_filter_insns[idx]; 7794 7795 if (BPF_CLASS(insn->code) == BPF_JMP) { 7796 if (insn->code == (BPF_JMP|BPF_JA)) { 7797 if (insn->k == PASS) 7798 insn->k = msock_filter.len - idx - 2; 7799 else if (insn->k == FAIL) 7800 insn->k = msock_filter.len - idx - 3; 7801 } 7802 7803 if (insn->jt == PASS) 7804 insn->jt = msock_filter.len - idx - 2; 7805 else if (insn->jt == FAIL) 7806 insn->jt = msock_filter.len - idx - 3; 7807 7808 if (insn->jf == PASS) 7809 insn->jf = msock_filter.len - idx - 2; 7810 else if (insn->jf == FAIL) 7811 insn->jf = msock_filter.len - idx - 3; 7812 } 7813 } 7814 7815 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER, 7816 &msock_filter, sizeof(msock_filter))) { 7817 wpa_printf(MSG_ERROR, "nl80211: setsockopt(SO_ATTACH_FILTER) failed: %s", 7818 strerror(errno)); 7819 return -1; 7820 } 7821 7822 return 0; 7823} 7824 7825 7826static void nl80211_remove_monitor_interface( 7827 struct wpa_driver_nl80211_data *drv) 7828{ 7829 if (drv->monitor_refcount > 0) 7830 drv->monitor_refcount--; 7831 wpa_printf(MSG_DEBUG, "nl80211: Remove monitor interface: refcount=%d", 7832 drv->monitor_refcount); 7833 if (drv->monitor_refcount > 0) 7834 return; 7835 7836 if (drv->monitor_ifidx >= 0) { 7837 nl80211_remove_iface(drv, drv->monitor_ifidx); 7838 drv->monitor_ifidx = -1; 7839 } 7840 if (drv->monitor_sock >= 0) { 7841 eloop_unregister_read_sock(drv->monitor_sock); 7842 close(drv->monitor_sock); 7843 drv->monitor_sock = -1; 7844 } 7845} 7846 7847 7848static int 7849nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv) 7850{ 7851 char buf[IFNAMSIZ]; 7852 struct sockaddr_ll ll; 7853 int optval; 7854 socklen_t optlen; 7855 7856 if (drv->monitor_ifidx >= 0) { 7857 drv->monitor_refcount++; 7858 wpa_printf(MSG_DEBUG, "nl80211: Re-use existing monitor interface: refcount=%d", 7859 drv->monitor_refcount); 7860 return 0; 7861 } 7862 7863 if (os_strncmp(drv->first_bss->ifname, "p2p-", 4) == 0) { 7864 /* 7865 * P2P interface name is of the format p2p-%s-%d. For monitor 7866 * interface name corresponding to P2P GO, replace "p2p-" with 7867 * "mon-" to retain the same interface name length and to 7868 * indicate that it is a monitor interface. 7869 */ 7870 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss->ifname + 4); 7871 } else { 7872 /* Non-P2P interface with AP functionality. */ 7873 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss->ifname); 7874 } 7875 7876 buf[IFNAMSIZ - 1] = '\0'; 7877 7878 drv->monitor_ifidx = 7879 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL, 7880 0, NULL, NULL, 0); 7881 7882 if (drv->monitor_ifidx == -EOPNOTSUPP) { 7883 /* 7884 * This is backward compatibility for a few versions of 7885 * the kernel only that didn't advertise the right 7886 * attributes for the only driver that then supported 7887 * AP mode w/o monitor -- ath6kl. 7888 */ 7889 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support " 7890 "monitor interface type - try to run without it"); 7891 drv->device_ap_sme = 1; 7892 } 7893 7894 if (drv->monitor_ifidx < 0) 7895 return -1; 7896 7897 if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1)) 7898 goto error; 7899 7900 memset(&ll, 0, sizeof(ll)); 7901 ll.sll_family = AF_PACKET; 7902 ll.sll_ifindex = drv->monitor_ifidx; 7903 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)); 7904 if (drv->monitor_sock < 0) { 7905 wpa_printf(MSG_ERROR, "nl80211: socket[PF_PACKET,SOCK_RAW] failed: %s", 7906 strerror(errno)); 7907 goto error; 7908 } 7909 7910 if (add_monitor_filter(drv->monitor_sock)) { 7911 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor " 7912 "interface; do filtering in user space"); 7913 /* This works, but will cost in performance. */ 7914 } 7915 7916 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) { 7917 wpa_printf(MSG_ERROR, "nl80211: monitor socket bind failed: %s", 7918 strerror(errno)); 7919 goto error; 7920 } 7921 7922 optlen = sizeof(optval); 7923 optval = 20; 7924 if (setsockopt 7925 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) { 7926 wpa_printf(MSG_ERROR, "nl80211: Failed to set socket priority: %s", 7927 strerror(errno)); 7928 goto error; 7929 } 7930 7931 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read, 7932 drv, NULL)) { 7933 wpa_printf(MSG_INFO, "nl80211: Could not register monitor read socket"); 7934 goto error; 7935 } 7936 7937 drv->monitor_refcount++; 7938 return 0; 7939 error: 7940 nl80211_remove_monitor_interface(drv); 7941 return -1; 7942} 7943 7944 7945static int nl80211_setup_ap(struct i802_bss *bss) 7946{ 7947 struct wpa_driver_nl80211_data *drv = bss->drv; 7948 7949 wpa_printf(MSG_DEBUG, "nl80211: Setup AP(%s) - device_ap_sme=%d use_monitor=%d", 7950 bss->ifname, drv->device_ap_sme, drv->use_monitor); 7951 7952 /* 7953 * Disable Probe Request reporting unless we need it in this way for 7954 * devices that include the AP SME, in the other case (unless using 7955 * monitor iface) we'll get it through the nl_mgmt socket instead. 7956 */ 7957 if (!drv->device_ap_sme) 7958 wpa_driver_nl80211_probe_req_report(bss, 0); 7959 7960 if (!drv->device_ap_sme && !drv->use_monitor) 7961 if (nl80211_mgmt_subscribe_ap(bss)) 7962 return -1; 7963 7964 if (drv->device_ap_sme && !drv->use_monitor) 7965 if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) 7966 return -1; 7967 7968 if (!drv->device_ap_sme && drv->use_monitor && 7969 nl80211_create_monitor_interface(drv) && 7970 !drv->device_ap_sme) 7971 return -1; 7972 7973 if (drv->device_ap_sme && 7974 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) { 7975 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable " 7976 "Probe Request frame reporting in AP mode"); 7977 /* Try to survive without this */ 7978 } 7979 7980 return 0; 7981} 7982 7983 7984static void nl80211_teardown_ap(struct i802_bss *bss) 7985{ 7986 struct wpa_driver_nl80211_data *drv = bss->drv; 7987 7988 wpa_printf(MSG_DEBUG, "nl80211: Teardown AP(%s) - device_ap_sme=%d use_monitor=%d", 7989 bss->ifname, drv->device_ap_sme, drv->use_monitor); 7990 if (drv->device_ap_sme) { 7991 wpa_driver_nl80211_probe_req_report(bss, 0); 7992 if (!drv->use_monitor) 7993 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)"); 7994 } else if (drv->use_monitor) 7995 nl80211_remove_monitor_interface(drv); 7996 else 7997 nl80211_mgmt_unsubscribe(bss, "AP teardown"); 7998 7999 bss->beacon_set = 0; 8000} 8001 8002 8003static int nl80211_send_eapol_data(struct i802_bss *bss, 8004 const u8 *addr, const u8 *data, 8005 size_t data_len) 8006{ 8007 struct sockaddr_ll ll; 8008 int ret; 8009 8010 if (bss->drv->eapol_tx_sock < 0) { 8011 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL"); 8012 return -1; 8013 } 8014 8015 os_memset(&ll, 0, sizeof(ll)); 8016 ll.sll_family = AF_PACKET; 8017 ll.sll_ifindex = bss->ifindex; 8018 ll.sll_protocol = htons(ETH_P_PAE); 8019 ll.sll_halen = ETH_ALEN; 8020 os_memcpy(ll.sll_addr, addr, ETH_ALEN); 8021 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0, 8022 (struct sockaddr *) &ll, sizeof(ll)); 8023 if (ret < 0) 8024 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s", 8025 strerror(errno)); 8026 8027 return ret; 8028} 8029 8030 8031static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 8032 8033static int wpa_driver_nl80211_hapd_send_eapol( 8034 void *priv, const u8 *addr, const u8 *data, 8035 size_t data_len, int encrypt, const u8 *own_addr, u32 flags) 8036{ 8037 struct i802_bss *bss = priv; 8038 struct wpa_driver_nl80211_data *drv = bss->drv; 8039 struct ieee80211_hdr *hdr; 8040 size_t len; 8041 u8 *pos; 8042 int res; 8043 int qos = flags & WPA_STA_WMM; 8044 8045 if (drv->device_ap_sme || !drv->use_monitor) 8046 return nl80211_send_eapol_data(bss, addr, data, data_len); 8047 8048 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 + 8049 data_len; 8050 hdr = os_zalloc(len); 8051 if (hdr == NULL) { 8052 wpa_printf(MSG_INFO, "nl80211: Failed to allocate EAPOL buffer(len=%lu)", 8053 (unsigned long) len); 8054 return -1; 8055 } 8056 8057 hdr->frame_control = 8058 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA); 8059 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS); 8060 if (encrypt) 8061 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP); 8062 if (qos) { 8063 hdr->frame_control |= 8064 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4); 8065 } 8066 8067 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN); 8068 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 8069 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 8070 pos = (u8 *) (hdr + 1); 8071 8072 if (qos) { 8073 /* Set highest priority in QoS header */ 8074 pos[0] = 7; 8075 pos[1] = 0; 8076 pos += 2; 8077 } 8078 8079 memcpy(pos, rfc1042_header, sizeof(rfc1042_header)); 8080 pos += sizeof(rfc1042_header); 8081 WPA_PUT_BE16(pos, ETH_P_PAE); 8082 pos += 2; 8083 memcpy(pos, data, data_len); 8084 8085 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0, 8086 0, 0, 0, 0); 8087 if (res < 0) { 8088 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - " 8089 "failed: %d (%s)", 8090 (unsigned long) len, errno, strerror(errno)); 8091 } 8092 os_free(hdr); 8093 8094 return res; 8095} 8096 8097 8098static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr, 8099 int total_flags, 8100 int flags_or, int flags_and) 8101{ 8102 struct i802_bss *bss = priv; 8103 struct wpa_driver_nl80211_data *drv = bss->drv; 8104 struct nl_msg *msg; 8105 struct nlattr *flags; 8106 struct nl80211_sta_flag_update upd; 8107 8108 msg = nlmsg_alloc(); 8109 if (!msg) 8110 return -ENOMEM; 8111 8112 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8113 8114 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8115 if_nametoindex(bss->ifname)); 8116 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8117 8118 /* 8119 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This 8120 * can be removed eventually. 8121 */ 8122 flags = nla_nest_start(msg, NL80211_ATTR_STA_FLAGS); 8123 if (!flags) 8124 goto nla_put_failure; 8125 if (total_flags & WPA_STA_AUTHORIZED) 8126 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_AUTHORIZED); 8127 8128 if (total_flags & WPA_STA_WMM) 8129 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_WME); 8130 8131 if (total_flags & WPA_STA_SHORT_PREAMBLE) 8132 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_SHORT_PREAMBLE); 8133 8134 if (total_flags & WPA_STA_MFP) 8135 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_MFP); 8136 8137 if (total_flags & WPA_STA_TDLS_PEER) 8138 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_TDLS_PEER); 8139 8140 nla_nest_end(msg, flags); 8141 8142 os_memset(&upd, 0, sizeof(upd)); 8143 upd.mask = sta_flags_nl80211(flags_or | ~flags_and); 8144 upd.set = sta_flags_nl80211(flags_or); 8145 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 8146 8147 return send_and_recv_msgs(drv, msg, NULL, NULL); 8148 nla_put_failure: 8149 nlmsg_free(msg); 8150 return -ENOBUFS; 8151} 8152 8153 8154static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv, 8155 struct wpa_driver_associate_params *params) 8156{ 8157 enum nl80211_iftype nlmode, old_mode; 8158 struct hostapd_freq_params freq = { 8159 .freq = params->freq, 8160 }; 8161 8162 if (params->p2p) { 8163 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P " 8164 "group (GO)"); 8165 nlmode = NL80211_IFTYPE_P2P_GO; 8166 } else 8167 nlmode = NL80211_IFTYPE_AP; 8168 8169 old_mode = drv->nlmode; 8170 if (wpa_driver_nl80211_set_mode(drv->first_bss, nlmode)) { 8171 nl80211_remove_monitor_interface(drv); 8172 return -1; 8173 } 8174 8175 if (wpa_driver_nl80211_set_freq(drv->first_bss, &freq)) { 8176 if (old_mode != nlmode) 8177 wpa_driver_nl80211_set_mode(drv->first_bss, old_mode); 8178 nl80211_remove_monitor_interface(drv); 8179 return -1; 8180 } 8181 8182 return 0; 8183} 8184 8185 8186static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv) 8187{ 8188 struct nl_msg *msg; 8189 int ret = -1; 8190 8191 msg = nlmsg_alloc(); 8192 if (!msg) 8193 return -1; 8194 8195 nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS); 8196 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8197 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8198 msg = NULL; 8199 if (ret) { 8200 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d " 8201 "(%s)", ret, strerror(-ret)); 8202 goto nla_put_failure; 8203 } 8204 8205 ret = 0; 8206 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully"); 8207 8208nla_put_failure: 8209 if (wpa_driver_nl80211_set_mode(drv->first_bss, 8210 NL80211_IFTYPE_STATION)) { 8211 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 8212 "station mode"); 8213 } 8214 8215 nlmsg_free(msg); 8216 return ret; 8217} 8218 8219 8220static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv, 8221 struct wpa_driver_associate_params *params) 8222{ 8223 struct nl_msg *msg; 8224 int ret = -1; 8225 int count = 0; 8226 8227 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex); 8228 8229 if (wpa_driver_nl80211_set_mode(drv->first_bss, 8230 NL80211_IFTYPE_ADHOC)) { 8231 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 8232 "IBSS mode"); 8233 return -1; 8234 } 8235 8236retry: 8237 msg = nlmsg_alloc(); 8238 if (!msg) 8239 return -1; 8240 8241 nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS); 8242 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8243 8244 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid)) 8245 goto nla_put_failure; 8246 8247 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 8248 params->ssid, params->ssid_len); 8249 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 8250 params->ssid); 8251 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 8252 drv->ssid_len = params->ssid_len; 8253 8254 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 8255 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 8256 8257 ret = nl80211_set_conn_keys(params, msg); 8258 if (ret) 8259 goto nla_put_failure; 8260 8261 if (params->bssid && params->fixed_bssid) { 8262 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR, 8263 MAC2STR(params->bssid)); 8264 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 8265 } 8266 8267 if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X || 8268 params->key_mgmt_suite == WPA_KEY_MGMT_PSK || 8269 params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 || 8270 params->key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256) { 8271 wpa_printf(MSG_DEBUG, " * control port"); 8272 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 8273 } 8274 8275 if (params->wpa_ie) { 8276 wpa_hexdump(MSG_DEBUG, 8277 " * Extra IEs for Beacon/Probe Response frames", 8278 params->wpa_ie, params->wpa_ie_len); 8279 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 8280 params->wpa_ie); 8281 } 8282 8283 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8284 msg = NULL; 8285 if (ret) { 8286 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)", 8287 ret, strerror(-ret)); 8288 count++; 8289 if (ret == -EALREADY && count == 1) { 8290 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after " 8291 "forced leave"); 8292 nl80211_leave_ibss(drv); 8293 nlmsg_free(msg); 8294 goto retry; 8295 } 8296 8297 goto nla_put_failure; 8298 } 8299 ret = 0; 8300 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully"); 8301 8302nla_put_failure: 8303 nlmsg_free(msg); 8304 return ret; 8305} 8306 8307 8308static int nl80211_connect_common(struct wpa_driver_nl80211_data *drv, 8309 struct wpa_driver_associate_params *params, 8310 struct nl_msg *msg) 8311{ 8312 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8313 8314 if (params->bssid) { 8315 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 8316 MAC2STR(params->bssid)); 8317 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 8318 } 8319 8320 if (params->freq) { 8321 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 8322 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 8323 drv->assoc_freq = params->freq; 8324 } else 8325 drv->assoc_freq = 0; 8326 8327 if (params->bg_scan_period >= 0) { 8328 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 8329 params->bg_scan_period); 8330 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 8331 params->bg_scan_period); 8332 } 8333 8334 if (params->ssid) { 8335 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 8336 params->ssid, params->ssid_len); 8337 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 8338 params->ssid); 8339 if (params->ssid_len > sizeof(drv->ssid)) 8340 goto nla_put_failure; 8341 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 8342 drv->ssid_len = params->ssid_len; 8343 } 8344 8345 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 8346 if (params->wpa_ie) 8347 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 8348 params->wpa_ie); 8349 8350 if (params->wpa_proto) { 8351 enum nl80211_wpa_versions ver = 0; 8352 8353 if (params->wpa_proto & WPA_PROTO_WPA) 8354 ver |= NL80211_WPA_VERSION_1; 8355 if (params->wpa_proto & WPA_PROTO_RSN) 8356 ver |= NL80211_WPA_VERSION_2; 8357 8358 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver); 8359 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 8360 } 8361 8362 if (params->pairwise_suite != WPA_CIPHER_NONE) { 8363 u32 cipher = wpa_cipher_to_cipher_suite(params->pairwise_suite); 8364 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher); 8365 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); 8366 } 8367 8368 if (params->group_suite != WPA_CIPHER_NONE) { 8369 u32 cipher = wpa_cipher_to_cipher_suite(params->group_suite); 8370 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher); 8371 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); 8372 } 8373 8374 if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X || 8375 params->key_mgmt_suite == WPA_KEY_MGMT_PSK || 8376 params->key_mgmt_suite == WPA_KEY_MGMT_FT_IEEE8021X || 8377 params->key_mgmt_suite == WPA_KEY_MGMT_FT_PSK || 8378 params->key_mgmt_suite == WPA_KEY_MGMT_CCKM) { 8379 int mgmt = WLAN_AKM_SUITE_PSK; 8380 8381 switch (params->key_mgmt_suite) { 8382 case WPA_KEY_MGMT_CCKM: 8383 mgmt = WLAN_AKM_SUITE_CCKM; 8384 break; 8385 case WPA_KEY_MGMT_IEEE8021X: 8386 mgmt = WLAN_AKM_SUITE_8021X; 8387 break; 8388 case WPA_KEY_MGMT_FT_IEEE8021X: 8389 mgmt = WLAN_AKM_SUITE_FT_8021X; 8390 break; 8391 case WPA_KEY_MGMT_FT_PSK: 8392 mgmt = WLAN_AKM_SUITE_FT_PSK; 8393 break; 8394 case WPA_KEY_MGMT_PSK: 8395 default: 8396 mgmt = WLAN_AKM_SUITE_PSK; 8397 break; 8398 } 8399 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt); 8400 } 8401 8402 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 8403 8404 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) 8405 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); 8406 8407 if (params->disable_ht) 8408 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); 8409 8410 if (params->htcaps && params->htcaps_mask) { 8411 int sz = sizeof(struct ieee80211_ht_capabilities); 8412 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); 8413 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 8414 params->htcaps_mask); 8415 } 8416 8417#ifdef CONFIG_VHT_OVERRIDES 8418 if (params->disable_vht) { 8419 wpa_printf(MSG_DEBUG, " * VHT disabled"); 8420 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT); 8421 } 8422 8423 if (params->vhtcaps && params->vhtcaps_mask) { 8424 int sz = sizeof(struct ieee80211_vht_capabilities); 8425 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps); 8426 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 8427 params->vhtcaps_mask); 8428 } 8429#endif /* CONFIG_VHT_OVERRIDES */ 8430 8431 if (params->p2p) 8432 wpa_printf(MSG_DEBUG, " * P2P group"); 8433 8434 return 0; 8435nla_put_failure: 8436 return -1; 8437} 8438 8439 8440static int wpa_driver_nl80211_try_connect( 8441 struct wpa_driver_nl80211_data *drv, 8442 struct wpa_driver_associate_params *params) 8443{ 8444 struct nl_msg *msg; 8445 enum nl80211_auth_type type; 8446 int ret; 8447 int algs; 8448 8449 msg = nlmsg_alloc(); 8450 if (!msg) 8451 return -1; 8452 8453 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex); 8454 nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT); 8455 8456 ret = nl80211_connect_common(drv, params, msg); 8457 if (ret) 8458 goto nla_put_failure; 8459 8460 algs = 0; 8461 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 8462 algs++; 8463 if (params->auth_alg & WPA_AUTH_ALG_SHARED) 8464 algs++; 8465 if (params->auth_alg & WPA_AUTH_ALG_LEAP) 8466 algs++; 8467 if (algs > 1) { 8468 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic " 8469 "selection"); 8470 goto skip_auth_type; 8471 } 8472 8473 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 8474 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 8475 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 8476 type = NL80211_AUTHTYPE_SHARED_KEY; 8477 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 8478 type = NL80211_AUTHTYPE_NETWORK_EAP; 8479 else if (params->auth_alg & WPA_AUTH_ALG_FT) 8480 type = NL80211_AUTHTYPE_FT; 8481 else 8482 goto nla_put_failure; 8483 8484 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 8485 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 8486 8487skip_auth_type: 8488 ret = nl80211_set_conn_keys(params, msg); 8489 if (ret) 8490 goto nla_put_failure; 8491 8492 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8493 msg = NULL; 8494 if (ret) { 8495 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d " 8496 "(%s)", ret, strerror(-ret)); 8497 goto nla_put_failure; 8498 } 8499 ret = 0; 8500 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully"); 8501 8502nla_put_failure: 8503 nlmsg_free(msg); 8504 return ret; 8505 8506} 8507 8508 8509static int wpa_driver_nl80211_connect( 8510 struct wpa_driver_nl80211_data *drv, 8511 struct wpa_driver_associate_params *params) 8512{ 8513 int ret = wpa_driver_nl80211_try_connect(drv, params); 8514 if (ret == -EALREADY) { 8515 /* 8516 * cfg80211 does not currently accept new connections if 8517 * we are already connected. As a workaround, force 8518 * disconnection and try again. 8519 */ 8520 wpa_printf(MSG_DEBUG, "nl80211: Explicitly " 8521 "disconnecting before reassociation " 8522 "attempt"); 8523 if (wpa_driver_nl80211_disconnect( 8524 drv, WLAN_REASON_PREV_AUTH_NOT_VALID)) 8525 return -1; 8526 ret = wpa_driver_nl80211_try_connect(drv, params); 8527 } 8528 return ret; 8529} 8530 8531 8532static int wpa_driver_nl80211_associate( 8533 void *priv, struct wpa_driver_associate_params *params) 8534{ 8535 struct i802_bss *bss = priv; 8536 struct wpa_driver_nl80211_data *drv = bss->drv; 8537 int ret; 8538 struct nl_msg *msg; 8539 8540 if (params->mode == IEEE80211_MODE_AP) 8541 return wpa_driver_nl80211_ap(drv, params); 8542 8543 if (params->mode == IEEE80211_MODE_IBSS) 8544 return wpa_driver_nl80211_ibss(drv, params); 8545 8546 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) { 8547 enum nl80211_iftype nlmode = params->p2p ? 8548 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 8549 8550 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0) 8551 return -1; 8552 return wpa_driver_nl80211_connect(drv, params); 8553 } 8554 8555 nl80211_mark_disconnected(drv); 8556 8557 msg = nlmsg_alloc(); 8558 if (!msg) 8559 return -1; 8560 8561 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)", 8562 drv->ifindex); 8563 nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE); 8564 8565 ret = nl80211_connect_common(drv, params, msg); 8566 if (ret) 8567 goto nla_put_failure; 8568 8569 if (params->prev_bssid) { 8570 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR, 8571 MAC2STR(params->prev_bssid)); 8572 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN, 8573 params->prev_bssid); 8574 } 8575 8576 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8577 msg = NULL; 8578 if (ret) { 8579 wpa_dbg(drv->ctx, MSG_DEBUG, 8580 "nl80211: MLME command failed (assoc): ret=%d (%s)", 8581 ret, strerror(-ret)); 8582 nl80211_dump_scan(drv); 8583 goto nla_put_failure; 8584 } 8585 ret = 0; 8586 wpa_printf(MSG_DEBUG, "nl80211: Association request send " 8587 "successfully"); 8588 8589nla_put_failure: 8590 nlmsg_free(msg); 8591 return ret; 8592} 8593 8594 8595static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv, 8596 int ifindex, enum nl80211_iftype mode) 8597{ 8598 struct nl_msg *msg; 8599 int ret = -ENOBUFS; 8600 8601 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)", 8602 ifindex, mode, nl80211_iftype_str(mode)); 8603 8604 msg = nlmsg_alloc(); 8605 if (!msg) 8606 return -ENOMEM; 8607 8608 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE); 8609 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 8610 goto nla_put_failure; 8611 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode); 8612 8613 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8614 msg = NULL; 8615 if (!ret) 8616 return 0; 8617nla_put_failure: 8618 nlmsg_free(msg); 8619 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:" 8620 " %d (%s)", ifindex, mode, ret, strerror(-ret)); 8621 return ret; 8622} 8623 8624 8625static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 8626 enum nl80211_iftype nlmode) 8627{ 8628 struct wpa_driver_nl80211_data *drv = bss->drv; 8629 int ret = -1; 8630 int i; 8631 int was_ap = is_ap_interface(drv->nlmode); 8632 int res; 8633 8634 res = nl80211_set_mode(drv, drv->ifindex, nlmode); 8635 if (res && nlmode == nl80211_get_ifmode(bss)) 8636 res = 0; 8637 8638 if (res == 0) { 8639 drv->nlmode = nlmode; 8640 ret = 0; 8641 goto done; 8642 } 8643 8644 if (res == -ENODEV) 8645 return -1; 8646 8647 if (nlmode == drv->nlmode) { 8648 wpa_printf(MSG_DEBUG, "nl80211: Interface already in " 8649 "requested mode - ignore error"); 8650 ret = 0; 8651 goto done; /* Already in the requested mode */ 8652 } 8653 8654 /* mac80211 doesn't allow mode changes while the device is up, so 8655 * take the device down, try to set the mode again, and bring the 8656 * device back up. 8657 */ 8658 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting " 8659 "interface down"); 8660 for (i = 0; i < 10; i++) { 8661 res = i802_set_iface_flags(bss, 0); 8662 if (res == -EACCES || res == -ENODEV) 8663 break; 8664 if (res == 0) { 8665 /* Try to set the mode again while the interface is 8666 * down */ 8667 ret = nl80211_set_mode(drv, drv->ifindex, nlmode); 8668 if (ret == -EACCES) 8669 break; 8670 res = i802_set_iface_flags(bss, 1); 8671 if (res && !ret) 8672 ret = -1; 8673 else if (ret != -EBUSY) 8674 break; 8675 } else 8676 wpa_printf(MSG_DEBUG, "nl80211: Failed to set " 8677 "interface down"); 8678 os_sleep(0, 100000); 8679 } 8680 8681 if (!ret) { 8682 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while " 8683 "interface is down"); 8684 drv->nlmode = nlmode; 8685 drv->ignore_if_down_event = 1; 8686 } 8687 8688done: 8689 if (ret) { 8690 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d " 8691 "from %d failed", nlmode, drv->nlmode); 8692 return ret; 8693 } 8694 8695 if (is_p2p_net_interface(nlmode)) 8696 nl80211_disable_11b_rates(drv, drv->ifindex, 1); 8697 else if (drv->disabled_11b_rates) 8698 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 8699 8700 if (is_ap_interface(nlmode)) { 8701 nl80211_mgmt_unsubscribe(bss, "start AP"); 8702 /* Setup additional AP mode functionality if needed */ 8703 if (nl80211_setup_ap(bss)) 8704 return -1; 8705 } else if (was_ap) { 8706 /* Remove additional AP mode functionality */ 8707 nl80211_teardown_ap(bss); 8708 } else { 8709 nl80211_mgmt_unsubscribe(bss, "mode change"); 8710 } 8711 8712 if (!bss->in_deinit && !is_ap_interface(nlmode) && 8713 nl80211_mgmt_subscribe_non_ap(bss) < 0) 8714 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action " 8715 "frame processing - ignore for now"); 8716 8717 return 0; 8718} 8719 8720 8721static int wpa_driver_nl80211_get_capa(void *priv, 8722 struct wpa_driver_capa *capa) 8723{ 8724 struct i802_bss *bss = priv; 8725 struct wpa_driver_nl80211_data *drv = bss->drv; 8726 if (!drv->has_capability) 8727 return -1; 8728 os_memcpy(capa, &drv->capa, sizeof(*capa)); 8729 if (drv->extended_capa && drv->extended_capa_mask) { 8730 capa->extended_capa = drv->extended_capa; 8731 capa->extended_capa_mask = drv->extended_capa_mask; 8732 capa->extended_capa_len = drv->extended_capa_len; 8733 } 8734 8735 if ((capa->flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) && 8736 !drv->allow_p2p_device) { 8737 wpa_printf(MSG_DEBUG, "nl80211: Do not indicate P2P_DEVICE support (p2p_device=1 driver param not specified)"); 8738 capa->flags &= ~WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 8739 } 8740 8741 return 0; 8742} 8743 8744 8745static int wpa_driver_nl80211_set_operstate(void *priv, int state) 8746{ 8747 struct i802_bss *bss = priv; 8748 struct wpa_driver_nl80211_data *drv = bss->drv; 8749 8750 wpa_printf(MSG_DEBUG, "nl80211: Set %s operstate %d->%d (%s)", 8751 bss->ifname, drv->operstate, state, 8752 state ? "UP" : "DORMANT"); 8753 drv->operstate = state; 8754 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1, 8755 state ? IF_OPER_UP : IF_OPER_DORMANT); 8756} 8757 8758 8759static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized) 8760{ 8761 struct i802_bss *bss = priv; 8762 struct wpa_driver_nl80211_data *drv = bss->drv; 8763 struct nl_msg *msg; 8764 struct nl80211_sta_flag_update upd; 8765 int ret = -ENOBUFS; 8766 8767 if (!drv->associated && is_zero_ether_addr(drv->bssid) && !authorized) { 8768 wpa_printf(MSG_DEBUG, "nl80211: Skip set_supp_port(unauthorized) while not associated"); 8769 return 0; 8770 } 8771 8772 wpa_printf(MSG_DEBUG, "nl80211: Set supplicant port %sauthorized for " 8773 MACSTR, authorized ? "" : "un", MAC2STR(drv->bssid)); 8774 8775 msg = nlmsg_alloc(); 8776 if (!msg) 8777 return -ENOMEM; 8778 8779 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8780 8781 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8782 if_nametoindex(bss->ifname)); 8783 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 8784 8785 os_memset(&upd, 0, sizeof(upd)); 8786 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED); 8787 if (authorized) 8788 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED); 8789 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 8790 8791 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8792 msg = NULL; 8793 if (!ret) 8794 return 0; 8795 nla_put_failure: 8796 nlmsg_free(msg); 8797 wpa_printf(MSG_DEBUG, "nl80211: Failed to set STA flag: %d (%s)", 8798 ret, strerror(-ret)); 8799 return ret; 8800} 8801 8802 8803/* Set kernel driver on given frequency (MHz) */ 8804static int i802_set_freq(void *priv, struct hostapd_freq_params *freq) 8805{ 8806 struct i802_bss *bss = priv; 8807 return wpa_driver_nl80211_set_freq(bss, freq); 8808} 8809 8810 8811static inline int min_int(int a, int b) 8812{ 8813 if (a < b) 8814 return a; 8815 return b; 8816} 8817 8818 8819static int get_key_handler(struct nl_msg *msg, void *arg) 8820{ 8821 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 8822 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 8823 8824 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 8825 genlmsg_attrlen(gnlh, 0), NULL); 8826 8827 /* 8828 * TODO: validate the key index and mac address! 8829 * Otherwise, there's a race condition as soon as 8830 * the kernel starts sending key notifications. 8831 */ 8832 8833 if (tb[NL80211_ATTR_KEY_SEQ]) 8834 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]), 8835 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6)); 8836 return NL_SKIP; 8837} 8838 8839 8840static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr, 8841 int idx, u8 *seq) 8842{ 8843 struct i802_bss *bss = priv; 8844 struct wpa_driver_nl80211_data *drv = bss->drv; 8845 struct nl_msg *msg; 8846 8847 msg = nlmsg_alloc(); 8848 if (!msg) 8849 return -ENOMEM; 8850 8851 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY); 8852 8853 if (addr) 8854 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8855 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx); 8856 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface)); 8857 8858 memset(seq, 0, 6); 8859 8860 return send_and_recv_msgs(drv, msg, get_key_handler, seq); 8861 nla_put_failure: 8862 nlmsg_free(msg); 8863 return -ENOBUFS; 8864} 8865 8866 8867static int i802_set_rts(void *priv, int rts) 8868{ 8869 struct i802_bss *bss = priv; 8870 struct wpa_driver_nl80211_data *drv = bss->drv; 8871 struct nl_msg *msg; 8872 int ret = -ENOBUFS; 8873 u32 val; 8874 8875 msg = nlmsg_alloc(); 8876 if (!msg) 8877 return -ENOMEM; 8878 8879 if (rts >= 2347) 8880 val = (u32) -1; 8881 else 8882 val = rts; 8883 8884 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8885 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8886 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val); 8887 8888 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8889 msg = NULL; 8890 if (!ret) 8891 return 0; 8892nla_put_failure: 8893 nlmsg_free(msg); 8894 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: " 8895 "%d (%s)", rts, ret, strerror(-ret)); 8896 return ret; 8897} 8898 8899 8900static int i802_set_frag(void *priv, int frag) 8901{ 8902 struct i802_bss *bss = priv; 8903 struct wpa_driver_nl80211_data *drv = bss->drv; 8904 struct nl_msg *msg; 8905 int ret = -ENOBUFS; 8906 u32 val; 8907 8908 msg = nlmsg_alloc(); 8909 if (!msg) 8910 return -ENOMEM; 8911 8912 if (frag >= 2346) 8913 val = (u32) -1; 8914 else 8915 val = frag; 8916 8917 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8918 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8919 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val); 8920 8921 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8922 msg = NULL; 8923 if (!ret) 8924 return 0; 8925nla_put_failure: 8926 nlmsg_free(msg); 8927 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold " 8928 "%d: %d (%s)", frag, ret, strerror(-ret)); 8929 return ret; 8930} 8931 8932 8933static int i802_flush(void *priv) 8934{ 8935 struct i802_bss *bss = priv; 8936 struct wpa_driver_nl80211_data *drv = bss->drv; 8937 struct nl_msg *msg; 8938 int res; 8939 8940 msg = nlmsg_alloc(); 8941 if (!msg) 8942 return -1; 8943 8944 wpa_printf(MSG_DEBUG, "nl80211: flush -> DEL_STATION %s (all)", 8945 bss->ifname); 8946 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 8947 8948 /* 8949 * XXX: FIX! this needs to flush all VLANs too 8950 */ 8951 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8952 if_nametoindex(bss->ifname)); 8953 8954 res = send_and_recv_msgs(drv, msg, NULL, NULL); 8955 if (res) { 8956 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d " 8957 "(%s)", res, strerror(-res)); 8958 } 8959 return res; 8960 nla_put_failure: 8961 nlmsg_free(msg); 8962 return -ENOBUFS; 8963} 8964 8965 8966static int get_sta_handler(struct nl_msg *msg, void *arg) 8967{ 8968 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 8969 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 8970 struct hostap_sta_driver_data *data = arg; 8971 struct nlattr *stats[NL80211_STA_INFO_MAX + 1]; 8972 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = { 8973 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 }, 8974 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 }, 8975 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 }, 8976 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 }, 8977 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 }, 8978 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 }, 8979 }; 8980 8981 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 8982 genlmsg_attrlen(gnlh, 0), NULL); 8983 8984 /* 8985 * TODO: validate the interface and mac address! 8986 * Otherwise, there's a race condition as soon as 8987 * the kernel starts sending station notifications. 8988 */ 8989 8990 if (!tb[NL80211_ATTR_STA_INFO]) { 8991 wpa_printf(MSG_DEBUG, "sta stats missing!"); 8992 return NL_SKIP; 8993 } 8994 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX, 8995 tb[NL80211_ATTR_STA_INFO], 8996 stats_policy)) { 8997 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!"); 8998 return NL_SKIP; 8999 } 9000 9001 if (stats[NL80211_STA_INFO_INACTIVE_TIME]) 9002 data->inactive_msec = 9003 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]); 9004 if (stats[NL80211_STA_INFO_RX_BYTES]) 9005 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]); 9006 if (stats[NL80211_STA_INFO_TX_BYTES]) 9007 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]); 9008 if (stats[NL80211_STA_INFO_RX_PACKETS]) 9009 data->rx_packets = 9010 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]); 9011 if (stats[NL80211_STA_INFO_TX_PACKETS]) 9012 data->tx_packets = 9013 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]); 9014 if (stats[NL80211_STA_INFO_TX_FAILED]) 9015 data->tx_retry_failed = 9016 nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]); 9017 9018 return NL_SKIP; 9019} 9020 9021static int i802_read_sta_data(struct i802_bss *bss, 9022 struct hostap_sta_driver_data *data, 9023 const u8 *addr) 9024{ 9025 struct wpa_driver_nl80211_data *drv = bss->drv; 9026 struct nl_msg *msg; 9027 9028 os_memset(data, 0, sizeof(*data)); 9029 msg = nlmsg_alloc(); 9030 if (!msg) 9031 return -ENOMEM; 9032 9033 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 9034 9035 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 9036 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 9037 9038 return send_and_recv_msgs(drv, msg, get_sta_handler, data); 9039 nla_put_failure: 9040 nlmsg_free(msg); 9041 return -ENOBUFS; 9042} 9043 9044 9045static int i802_set_tx_queue_params(void *priv, int queue, int aifs, 9046 int cw_min, int cw_max, int burst_time) 9047{ 9048 struct i802_bss *bss = priv; 9049 struct wpa_driver_nl80211_data *drv = bss->drv; 9050 struct nl_msg *msg; 9051 struct nlattr *txq, *params; 9052 9053 msg = nlmsg_alloc(); 9054 if (!msg) 9055 return -1; 9056 9057 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 9058 9059 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 9060 9061 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS); 9062 if (!txq) 9063 goto nla_put_failure; 9064 9065 /* We are only sending parameters for a single TXQ at a time */ 9066 params = nla_nest_start(msg, 1); 9067 if (!params) 9068 goto nla_put_failure; 9069 9070 switch (queue) { 9071 case 0: 9072 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO); 9073 break; 9074 case 1: 9075 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI); 9076 break; 9077 case 2: 9078 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE); 9079 break; 9080 case 3: 9081 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK); 9082 break; 9083 } 9084 /* Burst time is configured in units of 0.1 msec and TXOP parameter in 9085 * 32 usec, so need to convert the value here. */ 9086 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32); 9087 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min); 9088 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max); 9089 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs); 9090 9091 nla_nest_end(msg, params); 9092 9093 nla_nest_end(msg, txq); 9094 9095 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 9096 return 0; 9097 msg = NULL; 9098 nla_put_failure: 9099 nlmsg_free(msg); 9100 return -1; 9101} 9102 9103 9104static int i802_set_sta_vlan(struct i802_bss *bss, const u8 *addr, 9105 const char *ifname, int vlan_id) 9106{ 9107 struct wpa_driver_nl80211_data *drv = bss->drv; 9108 struct nl_msg *msg; 9109 int ret = -ENOBUFS; 9110 9111 msg = nlmsg_alloc(); 9112 if (!msg) 9113 return -ENOMEM; 9114 9115 wpa_printf(MSG_DEBUG, "nl80211: %s[%d]: set_sta_vlan(" MACSTR 9116 ", ifname=%s[%d], vlan_id=%d)", 9117 bss->ifname, if_nametoindex(bss->ifname), 9118 MAC2STR(addr), ifname, if_nametoindex(ifname), vlan_id); 9119 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 9120 9121 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 9122 if_nametoindex(bss->ifname)); 9123 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 9124 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN, 9125 if_nametoindex(ifname)); 9126 9127 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9128 msg = NULL; 9129 if (ret < 0) { 9130 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr=" 9131 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)", 9132 MAC2STR(addr), ifname, vlan_id, ret, 9133 strerror(-ret)); 9134 } 9135 nla_put_failure: 9136 nlmsg_free(msg); 9137 return ret; 9138} 9139 9140 9141static int i802_get_inact_sec(void *priv, const u8 *addr) 9142{ 9143 struct hostap_sta_driver_data data; 9144 int ret; 9145 9146 data.inactive_msec = (unsigned long) -1; 9147 ret = i802_read_sta_data(priv, &data, addr); 9148 if (ret || data.inactive_msec == (unsigned long) -1) 9149 return -1; 9150 return data.inactive_msec / 1000; 9151} 9152 9153 9154static int i802_sta_clear_stats(void *priv, const u8 *addr) 9155{ 9156#if 0 9157 /* TODO */ 9158#endif 9159 return 0; 9160} 9161 9162 9163static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, 9164 int reason) 9165{ 9166 struct i802_bss *bss = priv; 9167 struct wpa_driver_nl80211_data *drv = bss->drv; 9168 struct ieee80211_mgmt mgmt; 9169 9170 if (drv->device_ap_sme) 9171 return wpa_driver_nl80211_sta_remove(bss, addr); 9172 9173 memset(&mgmt, 0, sizeof(mgmt)); 9174 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 9175 WLAN_FC_STYPE_DEAUTH); 9176 memcpy(mgmt.da, addr, ETH_ALEN); 9177 memcpy(mgmt.sa, own_addr, ETH_ALEN); 9178 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 9179 mgmt.u.deauth.reason_code = host_to_le16(reason); 9180 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 9181 IEEE80211_HDRLEN + 9182 sizeof(mgmt.u.deauth), 0, 0, 0, 0, 9183 0); 9184} 9185 9186 9187static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr, 9188 int reason) 9189{ 9190 struct i802_bss *bss = priv; 9191 struct wpa_driver_nl80211_data *drv = bss->drv; 9192 struct ieee80211_mgmt mgmt; 9193 9194 if (drv->device_ap_sme) 9195 return wpa_driver_nl80211_sta_remove(bss, addr); 9196 9197 memset(&mgmt, 0, sizeof(mgmt)); 9198 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 9199 WLAN_FC_STYPE_DISASSOC); 9200 memcpy(mgmt.da, addr, ETH_ALEN); 9201 memcpy(mgmt.sa, own_addr, ETH_ALEN); 9202 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 9203 mgmt.u.disassoc.reason_code = host_to_le16(reason); 9204 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 9205 IEEE80211_HDRLEN + 9206 sizeof(mgmt.u.disassoc), 0, 0, 0, 0, 9207 0); 9208} 9209 9210 9211static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 9212{ 9213 int i; 9214 int *old; 9215 9216 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d", 9217 ifidx); 9218 for (i = 0; i < drv->num_if_indices; i++) { 9219 if (drv->if_indices[i] == 0) { 9220 drv->if_indices[i] = ifidx; 9221 return; 9222 } 9223 } 9224 9225 if (drv->if_indices != drv->default_if_indices) 9226 old = drv->if_indices; 9227 else 9228 old = NULL; 9229 9230 drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1, 9231 sizeof(int)); 9232 if (!drv->if_indices) { 9233 if (!old) 9234 drv->if_indices = drv->default_if_indices; 9235 else 9236 drv->if_indices = old; 9237 wpa_printf(MSG_ERROR, "Failed to reallocate memory for " 9238 "interfaces"); 9239 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx); 9240 return; 9241 } else if (!old) 9242 os_memcpy(drv->if_indices, drv->default_if_indices, 9243 sizeof(drv->default_if_indices)); 9244 drv->if_indices[drv->num_if_indices] = ifidx; 9245 drv->num_if_indices++; 9246} 9247 9248 9249static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 9250{ 9251 int i; 9252 9253 for (i = 0; i < drv->num_if_indices; i++) { 9254 if (drv->if_indices[i] == ifidx) { 9255 drv->if_indices[i] = 0; 9256 break; 9257 } 9258 } 9259} 9260 9261 9262static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 9263{ 9264 int i; 9265 9266 for (i = 0; i < drv->num_if_indices; i++) 9267 if (drv->if_indices[i] == ifidx) 9268 return 1; 9269 9270 return 0; 9271} 9272 9273 9274static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val, 9275 const char *bridge_ifname, char *ifname_wds) 9276{ 9277 struct i802_bss *bss = priv; 9278 struct wpa_driver_nl80211_data *drv = bss->drv; 9279 char name[IFNAMSIZ + 1]; 9280 9281 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid); 9282 if (ifname_wds) 9283 os_strlcpy(ifname_wds, name, IFNAMSIZ + 1); 9284 9285 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR 9286 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name); 9287 if (val) { 9288 if (!if_nametoindex(name)) { 9289 if (nl80211_create_iface(drv, name, 9290 NL80211_IFTYPE_AP_VLAN, 9291 bss->addr, 1, NULL, NULL, 0) < 9292 0) 9293 return -1; 9294 if (bridge_ifname && 9295 linux_br_add_if(drv->global->ioctl_sock, 9296 bridge_ifname, name) < 0) 9297 return -1; 9298 } 9299 if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) { 9300 wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA " 9301 "interface %s up", name); 9302 } 9303 return i802_set_sta_vlan(priv, addr, name, 0); 9304 } else { 9305 if (bridge_ifname) 9306 linux_br_del_if(drv->global->ioctl_sock, bridge_ifname, 9307 name); 9308 9309 i802_set_sta_vlan(priv, addr, bss->ifname, 0); 9310 return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN, 9311 name); 9312 } 9313} 9314 9315 9316static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx) 9317{ 9318 struct wpa_driver_nl80211_data *drv = eloop_ctx; 9319 struct sockaddr_ll lladdr; 9320 unsigned char buf[3000]; 9321 int len; 9322 socklen_t fromlen = sizeof(lladdr); 9323 9324 len = recvfrom(sock, buf, sizeof(buf), 0, 9325 (struct sockaddr *)&lladdr, &fromlen); 9326 if (len < 0) { 9327 wpa_printf(MSG_ERROR, "nl80211: EAPOL recv failed: %s", 9328 strerror(errno)); 9329 return; 9330 } 9331 9332 if (have_ifidx(drv, lladdr.sll_ifindex)) 9333 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len); 9334} 9335 9336 9337static int i802_check_bridge(struct wpa_driver_nl80211_data *drv, 9338 struct i802_bss *bss, 9339 const char *brname, const char *ifname) 9340{ 9341 int ifindex; 9342 char in_br[IFNAMSIZ]; 9343 9344 os_strlcpy(bss->brname, brname, IFNAMSIZ); 9345 ifindex = if_nametoindex(brname); 9346 if (ifindex == 0) { 9347 /* 9348 * Bridge was configured, but the bridge device does 9349 * not exist. Try to add it now. 9350 */ 9351 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) { 9352 wpa_printf(MSG_ERROR, "nl80211: Failed to add the " 9353 "bridge interface %s: %s", 9354 brname, strerror(errno)); 9355 return -1; 9356 } 9357 bss->added_bridge = 1; 9358 add_ifidx(drv, if_nametoindex(brname)); 9359 } 9360 9361 if (linux_br_get(in_br, ifname) == 0) { 9362 if (os_strcmp(in_br, brname) == 0) 9363 return 0; /* already in the bridge */ 9364 9365 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from " 9366 "bridge %s", ifname, in_br); 9367 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) < 9368 0) { 9369 wpa_printf(MSG_ERROR, "nl80211: Failed to " 9370 "remove interface %s from bridge " 9371 "%s: %s", 9372 ifname, brname, strerror(errno)); 9373 return -1; 9374 } 9375 } 9376 9377 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s", 9378 ifname, brname); 9379 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) { 9380 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s " 9381 "into bridge %s: %s", 9382 ifname, brname, strerror(errno)); 9383 return -1; 9384 } 9385 bss->added_if_into_bridge = 1; 9386 9387 return 0; 9388} 9389 9390 9391static void *i802_init(struct hostapd_data *hapd, 9392 struct wpa_init_params *params) 9393{ 9394 struct wpa_driver_nl80211_data *drv; 9395 struct i802_bss *bss; 9396 size_t i; 9397 char brname[IFNAMSIZ]; 9398 int ifindex, br_ifindex; 9399 int br_added = 0; 9400 9401 bss = wpa_driver_nl80211_drv_init(hapd, params->ifname, 9402 params->global_priv, 1, 9403 params->bssid); 9404 if (bss == NULL) 9405 return NULL; 9406 9407 drv = bss->drv; 9408 9409 if (linux_br_get(brname, params->ifname) == 0) { 9410 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s", 9411 params->ifname, brname); 9412 br_ifindex = if_nametoindex(brname); 9413 } else { 9414 brname[0] = '\0'; 9415 br_ifindex = 0; 9416 } 9417 9418 for (i = 0; i < params->num_bridge; i++) { 9419 if (params->bridge[i]) { 9420 ifindex = if_nametoindex(params->bridge[i]); 9421 if (ifindex) 9422 add_ifidx(drv, ifindex); 9423 if (ifindex == br_ifindex) 9424 br_added = 1; 9425 } 9426 } 9427 if (!br_added && br_ifindex && 9428 (params->num_bridge == 0 || !params->bridge[0])) 9429 add_ifidx(drv, br_ifindex); 9430 9431 /* start listening for EAPOL on the default AP interface */ 9432 add_ifidx(drv, drv->ifindex); 9433 9434 if (params->num_bridge && params->bridge[0] && 9435 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0) 9436 goto failed; 9437 9438 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE)); 9439 if (drv->eapol_sock < 0) { 9440 wpa_printf(MSG_ERROR, "nl80211: socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE) failed: %s", 9441 strerror(errno)); 9442 goto failed; 9443 } 9444 9445 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL)) 9446 { 9447 wpa_printf(MSG_INFO, "nl80211: Could not register read socket for eapol"); 9448 goto failed; 9449 } 9450 9451 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 9452 params->own_addr)) 9453 goto failed; 9454 9455 memcpy(bss->addr, params->own_addr, ETH_ALEN); 9456 9457 return bss; 9458 9459failed: 9460 wpa_driver_nl80211_deinit(bss); 9461 return NULL; 9462} 9463 9464 9465static void i802_deinit(void *priv) 9466{ 9467 struct i802_bss *bss = priv; 9468 wpa_driver_nl80211_deinit(bss); 9469} 9470 9471 9472static enum nl80211_iftype wpa_driver_nl80211_if_type( 9473 enum wpa_driver_if_type type) 9474{ 9475 switch (type) { 9476 case WPA_IF_STATION: 9477 return NL80211_IFTYPE_STATION; 9478 case WPA_IF_P2P_CLIENT: 9479 case WPA_IF_P2P_GROUP: 9480 return NL80211_IFTYPE_P2P_CLIENT; 9481 case WPA_IF_AP_VLAN: 9482 return NL80211_IFTYPE_AP_VLAN; 9483 case WPA_IF_AP_BSS: 9484 return NL80211_IFTYPE_AP; 9485 case WPA_IF_P2P_GO: 9486 return NL80211_IFTYPE_P2P_GO; 9487 case WPA_IF_P2P_DEVICE: 9488 return NL80211_IFTYPE_P2P_DEVICE; 9489 } 9490 return -1; 9491} 9492 9493 9494#ifdef CONFIG_P2P 9495 9496static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr) 9497{ 9498 struct wpa_driver_nl80211_data *drv; 9499 dl_list_for_each(drv, &global->interfaces, 9500 struct wpa_driver_nl80211_data, list) { 9501 if (os_memcmp(addr, drv->first_bss->addr, ETH_ALEN) == 0) 9502 return 1; 9503 } 9504 return 0; 9505} 9506 9507 9508static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv, 9509 u8 *new_addr) 9510{ 9511 unsigned int idx; 9512 9513 if (!drv->global) 9514 return -1; 9515 9516 os_memcpy(new_addr, drv->first_bss->addr, ETH_ALEN); 9517 for (idx = 0; idx < 64; idx++) { 9518 new_addr[0] = drv->first_bss->addr[0] | 0x02; 9519 new_addr[0] ^= idx << 2; 9520 if (!nl80211_addr_in_use(drv->global, new_addr)) 9521 break; 9522 } 9523 if (idx == 64) 9524 return -1; 9525 9526 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address " 9527 MACSTR, MAC2STR(new_addr)); 9528 9529 return 0; 9530} 9531 9532#endif /* CONFIG_P2P */ 9533 9534 9535struct wdev_info { 9536 u64 wdev_id; 9537 int wdev_id_set; 9538 u8 macaddr[ETH_ALEN]; 9539}; 9540 9541static int nl80211_wdev_handler(struct nl_msg *msg, void *arg) 9542{ 9543 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9544 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9545 struct wdev_info *wi = arg; 9546 9547 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9548 genlmsg_attrlen(gnlh, 0), NULL); 9549 if (tb[NL80211_ATTR_WDEV]) { 9550 wi->wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 9551 wi->wdev_id_set = 1; 9552 } 9553 9554 if (tb[NL80211_ATTR_MAC]) 9555 os_memcpy(wi->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 9556 ETH_ALEN); 9557 9558 return NL_SKIP; 9559} 9560 9561 9562static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type, 9563 const char *ifname, const u8 *addr, 9564 void *bss_ctx, void **drv_priv, 9565 char *force_ifname, u8 *if_addr, 9566 const char *bridge, int use_existing) 9567{ 9568 enum nl80211_iftype nlmode; 9569 struct i802_bss *bss = priv; 9570 struct wpa_driver_nl80211_data *drv = bss->drv; 9571 int ifidx; 9572 int added = 1; 9573 9574 if (addr) 9575 os_memcpy(if_addr, addr, ETH_ALEN); 9576 nlmode = wpa_driver_nl80211_if_type(type); 9577 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { 9578 struct wdev_info p2pdev_info; 9579 9580 os_memset(&p2pdev_info, 0, sizeof(p2pdev_info)); 9581 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 9582 0, nl80211_wdev_handler, 9583 &p2pdev_info, use_existing); 9584 if (!p2pdev_info.wdev_id_set || ifidx != 0) { 9585 wpa_printf(MSG_ERROR, "nl80211: Failed to create a P2P Device interface %s", 9586 ifname); 9587 return -1; 9588 } 9589 9590 drv->global->if_add_wdevid = p2pdev_info.wdev_id; 9591 drv->global->if_add_wdevid_set = p2pdev_info.wdev_id_set; 9592 if (!is_zero_ether_addr(p2pdev_info.macaddr)) 9593 os_memcpy(if_addr, p2pdev_info.macaddr, ETH_ALEN); 9594 wpa_printf(MSG_DEBUG, "nl80211: New P2P Device interface %s (0x%llx) created", 9595 ifname, 9596 (long long unsigned int) p2pdev_info.wdev_id); 9597 } else { 9598 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 9599 0, NULL, NULL, use_existing); 9600 if (use_existing && ifidx == -ENFILE) { 9601 added = 0; 9602 ifidx = if_nametoindex(ifname); 9603 } else if (ifidx < 0) { 9604 return -1; 9605 } 9606 } 9607 9608 if (!addr) { 9609 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 9610 os_memcpy(if_addr, bss->addr, ETH_ALEN); 9611 else if (linux_get_ifhwaddr(drv->global->ioctl_sock, 9612 bss->ifname, if_addr) < 0) { 9613 if (added) 9614 nl80211_remove_iface(drv, ifidx); 9615 return -1; 9616 } 9617 } 9618 9619#ifdef CONFIG_P2P 9620 if (!addr && 9621 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP || 9622 type == WPA_IF_P2P_GO)) { 9623 /* Enforce unique P2P Interface Address */ 9624 u8 new_addr[ETH_ALEN]; 9625 9626 if (linux_get_ifhwaddr(drv->global->ioctl_sock, ifname, 9627 new_addr) < 0) { 9628 nl80211_remove_iface(drv, ifidx); 9629 return -1; 9630 } 9631 if (nl80211_addr_in_use(drv->global, new_addr)) { 9632 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address " 9633 "for P2P group interface"); 9634 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) { 9635 nl80211_remove_iface(drv, ifidx); 9636 return -1; 9637 } 9638 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 9639 new_addr) < 0) { 9640 nl80211_remove_iface(drv, ifidx); 9641 return -1; 9642 } 9643 } 9644 os_memcpy(if_addr, new_addr, ETH_ALEN); 9645 } 9646#endif /* CONFIG_P2P */ 9647 9648 if (type == WPA_IF_AP_BSS) { 9649 struct i802_bss *new_bss = os_zalloc(sizeof(*new_bss)); 9650 if (new_bss == NULL) { 9651 if (added) 9652 nl80211_remove_iface(drv, ifidx); 9653 return -1; 9654 } 9655 9656 if (bridge && 9657 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) { 9658 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new " 9659 "interface %s to a bridge %s", 9660 ifname, bridge); 9661 if (added) 9662 nl80211_remove_iface(drv, ifidx); 9663 os_free(new_bss); 9664 return -1; 9665 } 9666 9667 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1)) 9668 { 9669 nl80211_remove_iface(drv, ifidx); 9670 os_free(new_bss); 9671 return -1; 9672 } 9673 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ); 9674 os_memcpy(new_bss->addr, if_addr, ETH_ALEN); 9675 new_bss->ifindex = ifidx; 9676 new_bss->drv = drv; 9677 new_bss->next = drv->first_bss->next; 9678 new_bss->freq = drv->first_bss->freq; 9679 new_bss->ctx = bss_ctx; 9680 new_bss->added_if = added; 9681 drv->first_bss->next = new_bss; 9682 if (drv_priv) 9683 *drv_priv = new_bss; 9684 nl80211_init_bss(new_bss); 9685 9686 /* Subscribe management frames for this WPA_IF_AP_BSS */ 9687 if (nl80211_setup_ap(new_bss)) 9688 return -1; 9689 } 9690 9691 if (drv->global) 9692 drv->global->if_add_ifindex = ifidx; 9693 9694 return 0; 9695} 9696 9697 9698static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 9699 enum wpa_driver_if_type type, 9700 const char *ifname) 9701{ 9702 struct wpa_driver_nl80211_data *drv = bss->drv; 9703 int ifindex = if_nametoindex(ifname); 9704 9705 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d added_if=%d", 9706 __func__, type, ifname, ifindex, bss->added_if); 9707 if (ifindex > 0 && (bss->added_if || bss->ifindex != ifindex)) 9708 nl80211_remove_iface(drv, ifindex); 9709 9710 if (type != WPA_IF_AP_BSS) 9711 return 0; 9712 9713 if (bss->added_if_into_bridge) { 9714 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 9715 bss->ifname) < 0) 9716 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 9717 "interface %s from bridge %s: %s", 9718 bss->ifname, bss->brname, strerror(errno)); 9719 } 9720 if (bss->added_bridge) { 9721 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 9722 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 9723 "bridge %s: %s", 9724 bss->brname, strerror(errno)); 9725 } 9726 9727 if (bss != drv->first_bss) { 9728 struct i802_bss *tbss; 9729 9730 wpa_printf(MSG_DEBUG, "nl80211: Not the first BSS - remove it"); 9731 for (tbss = drv->first_bss; tbss; tbss = tbss->next) { 9732 if (tbss->next == bss) { 9733 tbss->next = bss->next; 9734 /* Unsubscribe management frames */ 9735 nl80211_teardown_ap(bss); 9736 nl80211_destroy_bss(bss); 9737 os_free(bss); 9738 bss = NULL; 9739 break; 9740 } 9741 } 9742 if (bss) 9743 wpa_printf(MSG_INFO, "nl80211: %s - could not find " 9744 "BSS %p in the list", __func__, bss); 9745 } else { 9746 wpa_printf(MSG_DEBUG, "nl80211: First BSS - reassign context"); 9747 nl80211_teardown_ap(bss); 9748 if (!bss->added_if && !drv->first_bss->next) 9749 wpa_driver_nl80211_del_beacon(drv); 9750 nl80211_destroy_bss(bss); 9751 if (!bss->added_if) 9752 i802_set_iface_flags(bss, 0); 9753 if (drv->first_bss->next) { 9754 drv->first_bss = drv->first_bss->next; 9755 drv->ctx = drv->first_bss->ctx; 9756 os_free(bss); 9757 } else { 9758 wpa_printf(MSG_DEBUG, "nl80211: No second BSS to reassign context to"); 9759 } 9760 } 9761 9762 return 0; 9763} 9764 9765 9766static int cookie_handler(struct nl_msg *msg, void *arg) 9767{ 9768 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9769 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9770 u64 *cookie = arg; 9771 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9772 genlmsg_attrlen(gnlh, 0), NULL); 9773 if (tb[NL80211_ATTR_COOKIE]) 9774 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 9775 return NL_SKIP; 9776} 9777 9778 9779static int nl80211_send_frame_cmd(struct i802_bss *bss, 9780 unsigned int freq, unsigned int wait, 9781 const u8 *buf, size_t buf_len, 9782 u64 *cookie_out, int no_cck, int no_ack, 9783 int offchanok) 9784{ 9785 struct wpa_driver_nl80211_data *drv = bss->drv; 9786 struct nl_msg *msg; 9787 u64 cookie; 9788 int ret = -1; 9789 9790 msg = nlmsg_alloc(); 9791 if (!msg) 9792 return -1; 9793 9794 wpa_printf(MSG_MSGDUMP, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d " 9795 "no_ack=%d offchanok=%d", 9796 freq, wait, no_cck, no_ack, offchanok); 9797 wpa_hexdump(MSG_MSGDUMP, "CMD_FRAME", buf, buf_len); 9798 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME); 9799 9800 if (nl80211_set_iface_id(msg, bss) < 0) 9801 goto nla_put_failure; 9802 if (freq) 9803 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 9804 if (wait) 9805 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait); 9806 if (offchanok && (drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX)) 9807 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK); 9808 if (no_cck) 9809 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 9810 if (no_ack) 9811 NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK); 9812 9813 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf); 9814 9815 cookie = 0; 9816 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 9817 msg = NULL; 9818 if (ret) { 9819 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d " 9820 "(%s) (freq=%u wait=%u)", ret, strerror(-ret), 9821 freq, wait); 9822 goto nla_put_failure; 9823 } 9824 wpa_printf(MSG_MSGDUMP, "nl80211: Frame TX command accepted%s; " 9825 "cookie 0x%llx", no_ack ? " (no ACK)" : "", 9826 (long long unsigned int) cookie); 9827 9828 if (cookie_out) 9829 *cookie_out = no_ack ? (u64) -1 : cookie; 9830 9831nla_put_failure: 9832 nlmsg_free(msg); 9833 return ret; 9834} 9835 9836 9837static int wpa_driver_nl80211_send_action(struct i802_bss *bss, 9838 unsigned int freq, 9839 unsigned int wait_time, 9840 const u8 *dst, const u8 *src, 9841 const u8 *bssid, 9842 const u8 *data, size_t data_len, 9843 int no_cck) 9844{ 9845 struct wpa_driver_nl80211_data *drv = bss->drv; 9846 int ret = -1; 9847 u8 *buf; 9848 struct ieee80211_hdr *hdr; 9849 9850 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, " 9851 "freq=%u MHz wait=%d ms no_cck=%d)", 9852 drv->ifindex, freq, wait_time, no_cck); 9853 9854 buf = os_zalloc(24 + data_len); 9855 if (buf == NULL) 9856 return ret; 9857 os_memcpy(buf + 24, data, data_len); 9858 hdr = (struct ieee80211_hdr *) buf; 9859 hdr->frame_control = 9860 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION); 9861 os_memcpy(hdr->addr1, dst, ETH_ALEN); 9862 os_memcpy(hdr->addr2, src, ETH_ALEN); 9863 os_memcpy(hdr->addr3, bssid, ETH_ALEN); 9864 9865 if (is_ap_interface(drv->nlmode) && 9866 (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) || 9867 (int) freq == bss->freq || drv->device_ap_sme || 9868 !drv->use_monitor)) 9869 ret = wpa_driver_nl80211_send_mlme(bss, buf, 24 + data_len, 9870 0, freq, no_cck, 1, 9871 wait_time); 9872 else 9873 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf, 9874 24 + data_len, 9875 &drv->send_action_cookie, 9876 no_cck, 0, 1); 9877 9878 os_free(buf); 9879 return ret; 9880} 9881 9882 9883static void wpa_driver_nl80211_send_action_cancel_wait(void *priv) 9884{ 9885 struct i802_bss *bss = priv; 9886 struct wpa_driver_nl80211_data *drv = bss->drv; 9887 struct nl_msg *msg; 9888 int ret; 9889 9890 msg = nlmsg_alloc(); 9891 if (!msg) 9892 return; 9893 9894 wpa_printf(MSG_DEBUG, "nl80211: Cancel TX frame wait: cookie=0x%llx", 9895 (long long unsigned int) drv->send_action_cookie); 9896 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL); 9897 9898 if (nl80211_set_iface_id(msg, bss) < 0) 9899 goto nla_put_failure; 9900 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie); 9901 9902 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9903 msg = NULL; 9904 if (ret) 9905 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d " 9906 "(%s)", ret, strerror(-ret)); 9907 9908 nla_put_failure: 9909 nlmsg_free(msg); 9910} 9911 9912 9913static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq, 9914 unsigned int duration) 9915{ 9916 struct i802_bss *bss = priv; 9917 struct wpa_driver_nl80211_data *drv = bss->drv; 9918 struct nl_msg *msg; 9919 int ret; 9920 u64 cookie; 9921 9922 msg = nlmsg_alloc(); 9923 if (!msg) 9924 return -1; 9925 9926 nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL); 9927 9928 if (nl80211_set_iface_id(msg, bss) < 0) 9929 goto nla_put_failure; 9930 9931 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 9932 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); 9933 9934 cookie = 0; 9935 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 9936 msg = NULL; 9937 if (ret == 0) { 9938 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie " 9939 "0x%llx for freq=%u MHz duration=%u", 9940 (long long unsigned int) cookie, freq, duration); 9941 drv->remain_on_chan_cookie = cookie; 9942 drv->pending_remain_on_chan = 1; 9943 return 0; 9944 } 9945 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel " 9946 "(freq=%d duration=%u): %d (%s)", 9947 freq, duration, ret, strerror(-ret)); 9948nla_put_failure: 9949 nlmsg_free(msg); 9950 return -1; 9951} 9952 9953 9954static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv) 9955{ 9956 struct i802_bss *bss = priv; 9957 struct wpa_driver_nl80211_data *drv = bss->drv; 9958 struct nl_msg *msg; 9959 int ret; 9960 9961 if (!drv->pending_remain_on_chan) { 9962 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel " 9963 "to cancel"); 9964 return -1; 9965 } 9966 9967 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie " 9968 "0x%llx", 9969 (long long unsigned int) drv->remain_on_chan_cookie); 9970 9971 msg = nlmsg_alloc(); 9972 if (!msg) 9973 return -1; 9974 9975 nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL); 9976 9977 if (nl80211_set_iface_id(msg, bss) < 0) 9978 goto nla_put_failure; 9979 9980 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie); 9981 9982 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9983 msg = NULL; 9984 if (ret == 0) 9985 return 0; 9986 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: " 9987 "%d (%s)", ret, strerror(-ret)); 9988nla_put_failure: 9989 nlmsg_free(msg); 9990 return -1; 9991} 9992 9993 9994static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report) 9995{ 9996 struct wpa_driver_nl80211_data *drv = bss->drv; 9997 9998 if (!report) { 9999 if (bss->nl_preq && drv->device_ap_sme && 10000 is_ap_interface(drv->nlmode)) { 10001 /* 10002 * Do not disable Probe Request reporting that was 10003 * enabled in nl80211_setup_ap(). 10004 */ 10005 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of " 10006 "Probe Request reporting nl_preq=%p while " 10007 "in AP mode", bss->nl_preq); 10008 } else if (bss->nl_preq) { 10009 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request " 10010 "reporting nl_preq=%p", bss->nl_preq); 10011 nl80211_destroy_eloop_handle(&bss->nl_preq); 10012 } 10013 return 0; 10014 } 10015 10016 if (bss->nl_preq) { 10017 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting " 10018 "already on! nl_preq=%p", bss->nl_preq); 10019 return 0; 10020 } 10021 10022 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq"); 10023 if (bss->nl_preq == NULL) 10024 return -1; 10025 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request " 10026 "reporting nl_preq=%p", bss->nl_preq); 10027 10028 if (nl80211_register_frame(bss, bss->nl_preq, 10029 (WLAN_FC_TYPE_MGMT << 2) | 10030 (WLAN_FC_STYPE_PROBE_REQ << 4), 10031 NULL, 0) < 0) 10032 goto out_err; 10033 10034 nl80211_register_eloop_read(&bss->nl_preq, 10035 wpa_driver_nl80211_event_receive, 10036 bss->nl_cb); 10037 10038 return 0; 10039 10040 out_err: 10041 nl_destroy_handles(&bss->nl_preq); 10042 return -1; 10043} 10044 10045 10046static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 10047 int ifindex, int disabled) 10048{ 10049 struct nl_msg *msg; 10050 struct nlattr *bands, *band; 10051 int ret; 10052 10053 msg = nlmsg_alloc(); 10054 if (!msg) 10055 return -1; 10056 10057 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK); 10058 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 10059 10060 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES); 10061 if (!bands) 10062 goto nla_put_failure; 10063 10064 /* 10065 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything 10066 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS 10067 * rates. All 5 GHz rates are left enabled. 10068 */ 10069 band = nla_nest_start(msg, NL80211_BAND_2GHZ); 10070 if (!band) 10071 goto nla_put_failure; 10072 if (disabled) { 10073 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8, 10074 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 10075 } 10076 nla_nest_end(msg, band); 10077 10078 nla_nest_end(msg, bands); 10079 10080 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10081 msg = NULL; 10082 if (ret) { 10083 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d " 10084 "(%s)", ret, strerror(-ret)); 10085 } else 10086 drv->disabled_11b_rates = disabled; 10087 10088 return ret; 10089 10090nla_put_failure: 10091 nlmsg_free(msg); 10092 return -1; 10093} 10094 10095 10096static int wpa_driver_nl80211_deinit_ap(void *priv) 10097{ 10098 struct i802_bss *bss = priv; 10099 struct wpa_driver_nl80211_data *drv = bss->drv; 10100 if (!is_ap_interface(drv->nlmode)) 10101 return -1; 10102 wpa_driver_nl80211_del_beacon(drv); 10103 10104 /* 10105 * If the P2P GO interface was dynamically added, then it is 10106 * possible that the interface change to station is not possible. 10107 */ 10108 if (drv->nlmode == NL80211_IFTYPE_P2P_GO && bss->if_dynamic) 10109 return 0; 10110 10111 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 10112} 10113 10114 10115static int wpa_driver_nl80211_stop_ap(void *priv) 10116{ 10117 struct i802_bss *bss = priv; 10118 struct wpa_driver_nl80211_data *drv = bss->drv; 10119 if (!is_ap_interface(drv->nlmode)) 10120 return -1; 10121 wpa_driver_nl80211_del_beacon(drv); 10122 bss->beacon_set = 0; 10123 return 0; 10124} 10125 10126 10127static int wpa_driver_nl80211_deinit_p2p_cli(void *priv) 10128{ 10129 struct i802_bss *bss = priv; 10130 struct wpa_driver_nl80211_data *drv = bss->drv; 10131 if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT) 10132 return -1; 10133 10134 /* 10135 * If the P2P Client interface was dynamically added, then it is 10136 * possible that the interface change to station is not possible. 10137 */ 10138 if (bss->if_dynamic) 10139 return 0; 10140 10141 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 10142} 10143 10144 10145static void wpa_driver_nl80211_resume(void *priv) 10146{ 10147 struct i802_bss *bss = priv; 10148 10149 if (i802_set_iface_flags(bss, 1)) 10150 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on resume event"); 10151} 10152 10153 10154static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap, 10155 const u8 *ies, size_t ies_len) 10156{ 10157 struct i802_bss *bss = priv; 10158 struct wpa_driver_nl80211_data *drv = bss->drv; 10159 int ret; 10160 u8 *data, *pos; 10161 size_t data_len; 10162 const u8 *own_addr = bss->addr; 10163 10164 if (action != 1) { 10165 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action " 10166 "action %d", action); 10167 return -1; 10168 } 10169 10170 /* 10171 * Action frame payload: 10172 * Category[1] = 6 (Fast BSS Transition) 10173 * Action[1] = 1 (Fast BSS Transition Request) 10174 * STA Address 10175 * Target AP Address 10176 * FT IEs 10177 */ 10178 10179 data_len = 2 + 2 * ETH_ALEN + ies_len; 10180 data = os_malloc(data_len); 10181 if (data == NULL) 10182 return -1; 10183 pos = data; 10184 *pos++ = 0x06; /* FT Action category */ 10185 *pos++ = action; 10186 os_memcpy(pos, own_addr, ETH_ALEN); 10187 pos += ETH_ALEN; 10188 os_memcpy(pos, target_ap, ETH_ALEN); 10189 pos += ETH_ALEN; 10190 os_memcpy(pos, ies, ies_len); 10191 10192 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0, 10193 drv->bssid, own_addr, drv->bssid, 10194 data, data_len, 0); 10195 os_free(data); 10196 10197 return ret; 10198} 10199 10200 10201static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis) 10202{ 10203 struct i802_bss *bss = priv; 10204 struct wpa_driver_nl80211_data *drv = bss->drv; 10205 struct nl_msg *msg; 10206 struct nlattr *cqm; 10207 int ret = -1; 10208 10209 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d " 10210 "hysteresis=%d", threshold, hysteresis); 10211 10212 msg = nlmsg_alloc(); 10213 if (!msg) 10214 return -1; 10215 10216 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM); 10217 10218 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10219 10220 cqm = nla_nest_start(msg, NL80211_ATTR_CQM); 10221 if (cqm == NULL) 10222 goto nla_put_failure; 10223 10224 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THOLD, threshold); 10225 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_HYST, hysteresis); 10226 nla_nest_end(msg, cqm); 10227 10228 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10229 msg = NULL; 10230 10231nla_put_failure: 10232 nlmsg_free(msg); 10233 return ret; 10234} 10235 10236 10237static int get_channel_width(struct nl_msg *msg, void *arg) 10238{ 10239 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 10240 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 10241 struct wpa_signal_info *sig_change = arg; 10242 10243 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 10244 genlmsg_attrlen(gnlh, 0), NULL); 10245 10246 sig_change->center_frq1 = -1; 10247 sig_change->center_frq2 = -1; 10248 sig_change->chanwidth = CHAN_WIDTH_UNKNOWN; 10249 10250 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) { 10251 sig_change->chanwidth = convert2width( 10252 nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH])); 10253 if (tb[NL80211_ATTR_CENTER_FREQ1]) 10254 sig_change->center_frq1 = 10255 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); 10256 if (tb[NL80211_ATTR_CENTER_FREQ2]) 10257 sig_change->center_frq2 = 10258 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); 10259 } 10260 10261 return NL_SKIP; 10262} 10263 10264 10265static int nl80211_get_channel_width(struct wpa_driver_nl80211_data *drv, 10266 struct wpa_signal_info *sig) 10267{ 10268 struct nl_msg *msg; 10269 10270 msg = nlmsg_alloc(); 10271 if (!msg) 10272 return -ENOMEM; 10273 10274 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_INTERFACE); 10275 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10276 10277 return send_and_recv_msgs(drv, msg, get_channel_width, sig); 10278 10279nla_put_failure: 10280 nlmsg_free(msg); 10281 return -ENOBUFS; 10282} 10283 10284 10285static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si) 10286{ 10287 struct i802_bss *bss = priv; 10288 struct wpa_driver_nl80211_data *drv = bss->drv; 10289 int res; 10290 10291 os_memset(si, 0, sizeof(*si)); 10292 res = nl80211_get_link_signal(drv, si); 10293 if (res != 0) 10294 return res; 10295 10296 res = nl80211_get_channel_width(drv, si); 10297 if (res != 0) 10298 return res; 10299 10300 return nl80211_get_link_noise(drv, si); 10301} 10302 10303 10304static int wpa_driver_nl80211_shared_freq(void *priv) 10305{ 10306 struct i802_bss *bss = priv; 10307 struct wpa_driver_nl80211_data *drv = bss->drv; 10308 struct wpa_driver_nl80211_data *driver; 10309 int freq = 0; 10310 10311 /* 10312 * If the same PHY is in connected state with some other interface, 10313 * then retrieve the assoc freq. 10314 */ 10315 wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s", 10316 drv->phyname); 10317 10318 dl_list_for_each(driver, &drv->global->interfaces, 10319 struct wpa_driver_nl80211_data, list) { 10320 if (drv == driver || 10321 os_strcmp(drv->phyname, driver->phyname) != 0 || 10322 !driver->associated) 10323 continue; 10324 10325 wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s " 10326 MACSTR, 10327 driver->phyname, driver->first_bss->ifname, 10328 MAC2STR(driver->first_bss->addr)); 10329 if (is_ap_interface(driver->nlmode)) 10330 freq = driver->first_bss->freq; 10331 else 10332 freq = nl80211_get_assoc_freq(driver); 10333 wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d", 10334 drv->phyname, freq); 10335 } 10336 10337 if (!freq) 10338 wpa_printf(MSG_DEBUG, "nl80211: No shared interface for " 10339 "PHY (%s) in associated state", drv->phyname); 10340 10341 return freq; 10342} 10343 10344 10345static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len, 10346 int encrypt) 10347{ 10348 struct i802_bss *bss = priv; 10349 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0, 10350 0, 0, 0, 0); 10351} 10352 10353 10354static int nl80211_set_param(void *priv, const char *param) 10355{ 10356 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param); 10357 if (param == NULL) 10358 return 0; 10359 10360#ifdef CONFIG_P2P 10361 if (os_strstr(param, "use_p2p_group_interface=1")) { 10362 struct i802_bss *bss = priv; 10363 struct wpa_driver_nl80211_data *drv = bss->drv; 10364 10365 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 10366 "interface"); 10367 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 10368 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 10369 } 10370 10371 if (os_strstr(param, "p2p_device=1")) { 10372 struct i802_bss *bss = priv; 10373 struct wpa_driver_nl80211_data *drv = bss->drv; 10374 drv->allow_p2p_device = 1; 10375 } 10376#endif /* CONFIG_P2P */ 10377 10378 if (os_strstr(param, "use_monitor=1")) { 10379 struct i802_bss *bss = priv; 10380 struct wpa_driver_nl80211_data *drv = bss->drv; 10381 drv->use_monitor = 1; 10382 } 10383 10384 if (os_strstr(param, "force_connect_cmd=1")) { 10385 struct i802_bss *bss = priv; 10386 struct wpa_driver_nl80211_data *drv = bss->drv; 10387 drv->capa.flags &= ~WPA_DRIVER_FLAGS_SME; 10388 } 10389 10390 return 0; 10391} 10392 10393 10394static void * nl80211_global_init(void) 10395{ 10396 struct nl80211_global *global; 10397 struct netlink_config *cfg; 10398 10399 global = os_zalloc(sizeof(*global)); 10400 if (global == NULL) 10401 return NULL; 10402 global->ioctl_sock = -1; 10403 dl_list_init(&global->interfaces); 10404 global->if_add_ifindex = -1; 10405 10406 cfg = os_zalloc(sizeof(*cfg)); 10407 if (cfg == NULL) 10408 goto err; 10409 10410 cfg->ctx = global; 10411 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink; 10412 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink; 10413 global->netlink = netlink_init(cfg); 10414 if (global->netlink == NULL) { 10415 os_free(cfg); 10416 goto err; 10417 } 10418 10419 if (wpa_driver_nl80211_init_nl_global(global) < 0) 10420 goto err; 10421 10422 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0); 10423 if (global->ioctl_sock < 0) { 10424 wpa_printf(MSG_ERROR, "nl80211: socket(PF_INET,SOCK_DGRAM) failed: %s", 10425 strerror(errno)); 10426 goto err; 10427 } 10428 10429 return global; 10430 10431err: 10432 nl80211_global_deinit(global); 10433 return NULL; 10434} 10435 10436 10437static void nl80211_global_deinit(void *priv) 10438{ 10439 struct nl80211_global *global = priv; 10440 if (global == NULL) 10441 return; 10442 if (!dl_list_empty(&global->interfaces)) { 10443 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at " 10444 "nl80211_global_deinit", 10445 dl_list_len(&global->interfaces)); 10446 } 10447 10448 if (global->netlink) 10449 netlink_deinit(global->netlink); 10450 10451 nl_destroy_handles(&global->nl); 10452 10453 if (global->nl_event) 10454 nl80211_destroy_eloop_handle(&global->nl_event); 10455 10456 nl_cb_put(global->nl_cb); 10457 10458 if (global->ioctl_sock >= 0) 10459 close(global->ioctl_sock); 10460 10461 os_free(global); 10462} 10463 10464 10465static const char * nl80211_get_radio_name(void *priv) 10466{ 10467 struct i802_bss *bss = priv; 10468 struct wpa_driver_nl80211_data *drv = bss->drv; 10469 return drv->phyname; 10470} 10471 10472 10473static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid, 10474 const u8 *pmkid) 10475{ 10476 struct nl_msg *msg; 10477 10478 msg = nlmsg_alloc(); 10479 if (!msg) 10480 return -ENOMEM; 10481 10482 nl80211_cmd(bss->drv, msg, 0, cmd); 10483 10484 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 10485 if (pmkid) 10486 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid); 10487 if (bssid) 10488 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); 10489 10490 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 10491 nla_put_failure: 10492 nlmsg_free(msg); 10493 return -ENOBUFS; 10494} 10495 10496 10497static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 10498{ 10499 struct i802_bss *bss = priv; 10500 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid)); 10501 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid); 10502} 10503 10504 10505static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 10506{ 10507 struct i802_bss *bss = priv; 10508 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR, 10509 MAC2STR(bssid)); 10510 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid); 10511} 10512 10513 10514static int nl80211_flush_pmkid(void *priv) 10515{ 10516 struct i802_bss *bss = priv; 10517 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs"); 10518 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL); 10519} 10520 10521 10522static void clean_survey_results(struct survey_results *survey_results) 10523{ 10524 struct freq_survey *survey, *tmp; 10525 10526 if (dl_list_empty(&survey_results->survey_list)) 10527 return; 10528 10529 dl_list_for_each_safe(survey, tmp, &survey_results->survey_list, 10530 struct freq_survey, list) { 10531 dl_list_del(&survey->list); 10532 os_free(survey); 10533 } 10534} 10535 10536 10537static void add_survey(struct nlattr **sinfo, u32 ifidx, 10538 struct dl_list *survey_list) 10539{ 10540 struct freq_survey *survey; 10541 10542 survey = os_zalloc(sizeof(struct freq_survey)); 10543 if (!survey) 10544 return; 10545 10546 survey->ifidx = ifidx; 10547 survey->freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); 10548 survey->filled = 0; 10549 10550 if (sinfo[NL80211_SURVEY_INFO_NOISE]) { 10551 survey->nf = (int8_t) 10552 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 10553 survey->filled |= SURVEY_HAS_NF; 10554 } 10555 10556 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]) { 10557 survey->channel_time = 10558 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]); 10559 survey->filled |= SURVEY_HAS_CHAN_TIME; 10560 } 10561 10562 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]) { 10563 survey->channel_time_busy = 10564 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]); 10565 survey->filled |= SURVEY_HAS_CHAN_TIME_BUSY; 10566 } 10567 10568 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]) { 10569 survey->channel_time_rx = 10570 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]); 10571 survey->filled |= SURVEY_HAS_CHAN_TIME_RX; 10572 } 10573 10574 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]) { 10575 survey->channel_time_tx = 10576 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]); 10577 survey->filled |= SURVEY_HAS_CHAN_TIME_TX; 10578 } 10579 10580 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)", 10581 survey->freq, 10582 survey->nf, 10583 (unsigned long int) survey->channel_time, 10584 (unsigned long int) survey->channel_time_busy, 10585 (unsigned long int) survey->channel_time_tx, 10586 (unsigned long int) survey->channel_time_rx, 10587 survey->filled); 10588 10589 dl_list_add_tail(survey_list, &survey->list); 10590} 10591 10592 10593static int check_survey_ok(struct nlattr **sinfo, u32 surveyed_freq, 10594 unsigned int freq_filter) 10595{ 10596 if (!freq_filter) 10597 return 1; 10598 10599 return freq_filter == surveyed_freq; 10600} 10601 10602 10603static int survey_handler(struct nl_msg *msg, void *arg) 10604{ 10605 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 10606 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 10607 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 10608 struct survey_results *survey_results; 10609 u32 surveyed_freq = 0; 10610 u32 ifidx; 10611 10612 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 10613 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 10614 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 10615 }; 10616 10617 survey_results = (struct survey_results *) arg; 10618 10619 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 10620 genlmsg_attrlen(gnlh, 0), NULL); 10621 10622 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 10623 10624 if (!tb[NL80211_ATTR_SURVEY_INFO]) 10625 return NL_SKIP; 10626 10627 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 10628 tb[NL80211_ATTR_SURVEY_INFO], 10629 survey_policy)) 10630 return NL_SKIP; 10631 10632 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) { 10633 wpa_printf(MSG_ERROR, "nl80211: Invalid survey data"); 10634 return NL_SKIP; 10635 } 10636 10637 surveyed_freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); 10638 10639 if (!check_survey_ok(sinfo, surveyed_freq, 10640 survey_results->freq_filter)) 10641 return NL_SKIP; 10642 10643 if (survey_results->freq_filter && 10644 survey_results->freq_filter != surveyed_freq) { 10645 wpa_printf(MSG_EXCESSIVE, "nl80211: Ignoring survey data for freq %d MHz", 10646 surveyed_freq); 10647 return NL_SKIP; 10648 } 10649 10650 add_survey(sinfo, ifidx, &survey_results->survey_list); 10651 10652 return NL_SKIP; 10653} 10654 10655 10656static int wpa_driver_nl80211_get_survey(void *priv, unsigned int freq) 10657{ 10658 struct i802_bss *bss = priv; 10659 struct wpa_driver_nl80211_data *drv = bss->drv; 10660 struct nl_msg *msg; 10661 int err = -ENOBUFS; 10662 union wpa_event_data data; 10663 struct survey_results *survey_results; 10664 10665 os_memset(&data, 0, sizeof(data)); 10666 survey_results = &data.survey_results; 10667 10668 dl_list_init(&survey_results->survey_list); 10669 10670 msg = nlmsg_alloc(); 10671 if (!msg) 10672 goto nla_put_failure; 10673 10674 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 10675 10676 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10677 10678 if (freq) 10679 data.survey_results.freq_filter = freq; 10680 10681 do { 10682 wpa_printf(MSG_DEBUG, "nl80211: Fetch survey data"); 10683 err = send_and_recv_msgs(drv, msg, survey_handler, 10684 survey_results); 10685 } while (err > 0); 10686 10687 if (err) { 10688 wpa_printf(MSG_ERROR, "nl80211: Failed to process survey data"); 10689 goto out_clean; 10690 } 10691 10692 wpa_supplicant_event(drv->ctx, EVENT_SURVEY, &data); 10693 10694out_clean: 10695 clean_survey_results(survey_results); 10696nla_put_failure: 10697 return err; 10698} 10699 10700 10701static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck, 10702 const u8 *replay_ctr) 10703{ 10704 struct i802_bss *bss = priv; 10705 struct wpa_driver_nl80211_data *drv = bss->drv; 10706 struct nlattr *replay_nested; 10707 struct nl_msg *msg; 10708 10709 msg = nlmsg_alloc(); 10710 if (!msg) 10711 return; 10712 10713 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD); 10714 10715 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10716 10717 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); 10718 if (!replay_nested) 10719 goto nla_put_failure; 10720 10721 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek); 10722 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck); 10723 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN, 10724 replay_ctr); 10725 10726 nla_nest_end(msg, replay_nested); 10727 10728 send_and_recv_msgs(drv, msg, NULL, NULL); 10729 return; 10730 nla_put_failure: 10731 nlmsg_free(msg); 10732} 10733 10734 10735static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr, 10736 const u8 *addr, int qos) 10737{ 10738 /* send data frame to poll STA and check whether 10739 * this frame is ACKed */ 10740 struct { 10741 struct ieee80211_hdr hdr; 10742 u16 qos_ctl; 10743 } STRUCT_PACKED nulldata; 10744 size_t size; 10745 10746 /* Send data frame to poll STA and check whether this frame is ACKed */ 10747 10748 os_memset(&nulldata, 0, sizeof(nulldata)); 10749 10750 if (qos) { 10751 nulldata.hdr.frame_control = 10752 IEEE80211_FC(WLAN_FC_TYPE_DATA, 10753 WLAN_FC_STYPE_QOS_NULL); 10754 size = sizeof(nulldata); 10755 } else { 10756 nulldata.hdr.frame_control = 10757 IEEE80211_FC(WLAN_FC_TYPE_DATA, 10758 WLAN_FC_STYPE_NULLFUNC); 10759 size = sizeof(struct ieee80211_hdr); 10760 } 10761 10762 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS); 10763 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN); 10764 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 10765 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 10766 10767 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0, 0, 0, 10768 0, 0) < 0) 10769 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to " 10770 "send poll frame"); 10771} 10772 10773static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr, 10774 int qos) 10775{ 10776 struct i802_bss *bss = priv; 10777 struct wpa_driver_nl80211_data *drv = bss->drv; 10778 struct nl_msg *msg; 10779 10780 if (!drv->poll_command_supported) { 10781 nl80211_send_null_frame(bss, own_addr, addr, qos); 10782 return; 10783 } 10784 10785 msg = nlmsg_alloc(); 10786 if (!msg) 10787 return; 10788 10789 nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT); 10790 10791 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10792 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 10793 10794 send_and_recv_msgs(drv, msg, NULL, NULL); 10795 return; 10796 nla_put_failure: 10797 nlmsg_free(msg); 10798} 10799 10800 10801static int nl80211_set_power_save(struct i802_bss *bss, int enabled) 10802{ 10803 struct nl_msg *msg; 10804 10805 msg = nlmsg_alloc(); 10806 if (!msg) 10807 return -ENOMEM; 10808 10809 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE); 10810 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10811 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, 10812 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED); 10813 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 10814nla_put_failure: 10815 nlmsg_free(msg); 10816 return -ENOBUFS; 10817} 10818 10819 10820static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps, 10821 int ctwindow) 10822{ 10823 struct i802_bss *bss = priv; 10824 10825 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d " 10826 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow); 10827 10828 if (opp_ps != -1 || ctwindow != -1) { 10829#ifdef ANDROID_P2P 10830 wpa_driver_set_p2p_ps(priv, legacy_ps, opp_ps, ctwindow); 10831#else /* ANDROID_P2P */ 10832 return -1; /* Not yet supported */ 10833#endif /* ANDROID_P2P */ 10834 } 10835 10836 if (legacy_ps == -1) 10837 return 0; 10838 if (legacy_ps != 0 && legacy_ps != 1) 10839 return -1; /* Not yet supported */ 10840 10841 return nl80211_set_power_save(bss, legacy_ps); 10842} 10843 10844 10845static int nl80211_start_radar_detection(void *priv, 10846 struct hostapd_freq_params *freq) 10847{ 10848 struct i802_bss *bss = priv; 10849 struct wpa_driver_nl80211_data *drv = bss->drv; 10850 struct nl_msg *msg; 10851 int ret; 10852 10853 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)", 10854 freq->freq, freq->ht_enabled, freq->vht_enabled, 10855 freq->bandwidth, freq->center_freq1, freq->center_freq2); 10856 10857 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_RADAR)) { 10858 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support radar " 10859 "detection"); 10860 return -1; 10861 } 10862 10863 msg = nlmsg_alloc(); 10864 if (!msg) 10865 return -1; 10866 10867 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_RADAR_DETECT); 10868 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10869 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); 10870 10871 if (freq->vht_enabled) { 10872 switch (freq->bandwidth) { 10873 case 20: 10874 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 10875 NL80211_CHAN_WIDTH_20); 10876 break; 10877 case 40: 10878 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 10879 NL80211_CHAN_WIDTH_40); 10880 break; 10881 case 80: 10882 if (freq->center_freq2) 10883 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 10884 NL80211_CHAN_WIDTH_80P80); 10885 else 10886 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 10887 NL80211_CHAN_WIDTH_80); 10888 break; 10889 case 160: 10890 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 10891 NL80211_CHAN_WIDTH_160); 10892 break; 10893 default: 10894 return -1; 10895 } 10896 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); 10897 if (freq->center_freq2) 10898 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, 10899 freq->center_freq2); 10900 } else if (freq->ht_enabled) { 10901 switch (freq->sec_channel_offset) { 10902 case -1: 10903 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 10904 NL80211_CHAN_HT40MINUS); 10905 break; 10906 case 1: 10907 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 10908 NL80211_CHAN_HT40PLUS); 10909 break; 10910 default: 10911 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 10912 NL80211_CHAN_HT20); 10913 break; 10914 } 10915 } 10916 10917 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10918 if (ret == 0) 10919 return 0; 10920 wpa_printf(MSG_DEBUG, "nl80211: Failed to start radar detection: " 10921 "%d (%s)", ret, strerror(-ret)); 10922nla_put_failure: 10923 return -1; 10924} 10925 10926#ifdef CONFIG_TDLS 10927 10928static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code, 10929 u8 dialog_token, u16 status_code, 10930 const u8 *buf, size_t len) 10931{ 10932 struct i802_bss *bss = priv; 10933 struct wpa_driver_nl80211_data *drv = bss->drv; 10934 struct nl_msg *msg; 10935 10936 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 10937 return -EOPNOTSUPP; 10938 10939 if (!dst) 10940 return -EINVAL; 10941 10942 msg = nlmsg_alloc(); 10943 if (!msg) 10944 return -ENOMEM; 10945 10946 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT); 10947 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10948 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); 10949 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code); 10950 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token); 10951 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code); 10952 NLA_PUT(msg, NL80211_ATTR_IE, len, buf); 10953 10954 return send_and_recv_msgs(drv, msg, NULL, NULL); 10955 10956nla_put_failure: 10957 nlmsg_free(msg); 10958 return -ENOBUFS; 10959} 10960 10961 10962static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer) 10963{ 10964 struct i802_bss *bss = priv; 10965 struct wpa_driver_nl80211_data *drv = bss->drv; 10966 struct nl_msg *msg; 10967 enum nl80211_tdls_operation nl80211_oper; 10968 10969 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 10970 return -EOPNOTSUPP; 10971 10972 switch (oper) { 10973 case TDLS_DISCOVERY_REQ: 10974 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ; 10975 break; 10976 case TDLS_SETUP: 10977 nl80211_oper = NL80211_TDLS_SETUP; 10978 break; 10979 case TDLS_TEARDOWN: 10980 nl80211_oper = NL80211_TDLS_TEARDOWN; 10981 break; 10982 case TDLS_ENABLE_LINK: 10983 nl80211_oper = NL80211_TDLS_ENABLE_LINK; 10984 break; 10985 case TDLS_DISABLE_LINK: 10986 nl80211_oper = NL80211_TDLS_DISABLE_LINK; 10987 break; 10988 case TDLS_ENABLE: 10989 return 0; 10990 case TDLS_DISABLE: 10991 return 0; 10992 default: 10993 return -EINVAL; 10994 } 10995 10996 msg = nlmsg_alloc(); 10997 if (!msg) 10998 return -ENOMEM; 10999 11000 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER); 11001 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper); 11002 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11003 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer); 11004 11005 return send_and_recv_msgs(drv, msg, NULL, NULL); 11006 11007nla_put_failure: 11008 nlmsg_free(msg); 11009 return -ENOBUFS; 11010} 11011 11012#endif /* CONFIG TDLS */ 11013 11014 11015#ifdef ANDROID 11016 11017typedef struct android_wifi_priv_cmd { 11018 char *buf; 11019 int used_len; 11020 int total_len; 11021} android_wifi_priv_cmd; 11022 11023static int drv_errors = 0; 11024 11025static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv) 11026{ 11027 drv_errors++; 11028 if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) { 11029 drv_errors = 0; 11030 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED"); 11031 } 11032} 11033 11034 11035static int android_priv_cmd(struct i802_bss *bss, const char *cmd) 11036{ 11037 struct wpa_driver_nl80211_data *drv = bss->drv; 11038 struct ifreq ifr; 11039 android_wifi_priv_cmd priv_cmd; 11040 char buf[MAX_DRV_CMD_SIZE]; 11041 int ret; 11042 11043 os_memset(&ifr, 0, sizeof(ifr)); 11044 os_memset(&priv_cmd, 0, sizeof(priv_cmd)); 11045 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 11046 11047 os_memset(buf, 0, sizeof(buf)); 11048 os_strlcpy(buf, cmd, sizeof(buf)); 11049 11050 priv_cmd.buf = buf; 11051 priv_cmd.used_len = sizeof(buf); 11052 priv_cmd.total_len = sizeof(buf); 11053 ifr.ifr_data = &priv_cmd; 11054 11055 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 11056 if (ret < 0) { 11057 wpa_printf(MSG_ERROR, "%s: failed to issue private commands", 11058 __func__); 11059 wpa_driver_send_hang_msg(drv); 11060 return ret; 11061 } 11062 11063 drv_errors = 0; 11064 return 0; 11065} 11066 11067 11068static int android_pno_start(struct i802_bss *bss, 11069 struct wpa_driver_scan_params *params) 11070{ 11071 struct wpa_driver_nl80211_data *drv = bss->drv; 11072 struct ifreq ifr; 11073 android_wifi_priv_cmd priv_cmd; 11074 int ret = 0, i = 0, bp; 11075 char buf[WEXT_PNO_MAX_COMMAND_SIZE]; 11076 11077 bp = WEXT_PNOSETUP_HEADER_SIZE; 11078 os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp); 11079 buf[bp++] = WEXT_PNO_TLV_PREFIX; 11080 buf[bp++] = WEXT_PNO_TLV_VERSION; 11081 buf[bp++] = WEXT_PNO_TLV_SUBVERSION; 11082 buf[bp++] = WEXT_PNO_TLV_RESERVED; 11083 11084 while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) { 11085 /* Check that there is enough space needed for 1 more SSID, the 11086 * other sections and null termination */ 11087 if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN + 11088 WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf)) 11089 break; 11090 wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan", 11091 params->ssids[i].ssid, 11092 params->ssids[i].ssid_len); 11093 buf[bp++] = WEXT_PNO_SSID_SECTION; 11094 buf[bp++] = params->ssids[i].ssid_len; 11095 os_memcpy(&buf[bp], params->ssids[i].ssid, 11096 params->ssids[i].ssid_len); 11097 bp += params->ssids[i].ssid_len; 11098 i++; 11099 } 11100 11101 buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION; 11102 os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x", 11103 WEXT_PNO_SCAN_INTERVAL); 11104 bp += WEXT_PNO_SCAN_INTERVAL_LENGTH; 11105 11106 buf[bp++] = WEXT_PNO_REPEAT_SECTION; 11107 os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x", 11108 WEXT_PNO_REPEAT); 11109 bp += WEXT_PNO_REPEAT_LENGTH; 11110 11111 buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION; 11112 os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x", 11113 WEXT_PNO_MAX_REPEAT); 11114 bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1; 11115 11116 memset(&ifr, 0, sizeof(ifr)); 11117 memset(&priv_cmd, 0, sizeof(priv_cmd)); 11118 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 11119 11120 priv_cmd.buf = buf; 11121 priv_cmd.used_len = bp; 11122 priv_cmd.total_len = bp; 11123 ifr.ifr_data = &priv_cmd; 11124 11125 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 11126 11127 if (ret < 0) { 11128 wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d", 11129 ret); 11130 wpa_driver_send_hang_msg(drv); 11131 return ret; 11132 } 11133 11134 drv_errors = 0; 11135 11136 return android_priv_cmd(bss, "PNOFORCE 1"); 11137} 11138 11139 11140static int android_pno_stop(struct i802_bss *bss) 11141{ 11142 return android_priv_cmd(bss, "PNOFORCE 0"); 11143} 11144 11145#endif /* ANDROID */ 11146 11147 11148static int driver_nl80211_set_key(const char *ifname, void *priv, 11149 enum wpa_alg alg, const u8 *addr, 11150 int key_idx, int set_tx, 11151 const u8 *seq, size_t seq_len, 11152 const u8 *key, size_t key_len) 11153{ 11154 struct i802_bss *bss = priv; 11155 return wpa_driver_nl80211_set_key(ifname, bss, alg, addr, key_idx, 11156 set_tx, seq, seq_len, key, key_len); 11157} 11158 11159 11160static int driver_nl80211_scan2(void *priv, 11161 struct wpa_driver_scan_params *params) 11162{ 11163 struct i802_bss *bss = priv; 11164 return wpa_driver_nl80211_scan(bss, params); 11165} 11166 11167 11168static int driver_nl80211_deauthenticate(void *priv, const u8 *addr, 11169 int reason_code) 11170{ 11171 struct i802_bss *bss = priv; 11172 return wpa_driver_nl80211_deauthenticate(bss, addr, reason_code); 11173} 11174 11175 11176static int driver_nl80211_authenticate(void *priv, 11177 struct wpa_driver_auth_params *params) 11178{ 11179 struct i802_bss *bss = priv; 11180 return wpa_driver_nl80211_authenticate(bss, params); 11181} 11182 11183 11184static void driver_nl80211_deinit(void *priv) 11185{ 11186 struct i802_bss *bss = priv; 11187 wpa_driver_nl80211_deinit(bss); 11188} 11189 11190 11191static int driver_nl80211_if_remove(void *priv, enum wpa_driver_if_type type, 11192 const char *ifname) 11193{ 11194 struct i802_bss *bss = priv; 11195 return wpa_driver_nl80211_if_remove(bss, type, ifname); 11196} 11197 11198 11199static int driver_nl80211_send_mlme(void *priv, const u8 *data, 11200 size_t data_len, int noack) 11201{ 11202 struct i802_bss *bss = priv; 11203 return wpa_driver_nl80211_send_mlme(bss, data, data_len, noack, 11204 0, 0, 0, 0); 11205} 11206 11207 11208static int driver_nl80211_sta_remove(void *priv, const u8 *addr) 11209{ 11210 struct i802_bss *bss = priv; 11211 return wpa_driver_nl80211_sta_remove(bss, addr); 11212} 11213 11214 11215static int driver_nl80211_set_sta_vlan(void *priv, const u8 *addr, 11216 const char *ifname, int vlan_id) 11217{ 11218 struct i802_bss *bss = priv; 11219 return i802_set_sta_vlan(bss, addr, ifname, vlan_id); 11220} 11221 11222 11223static int driver_nl80211_read_sta_data(void *priv, 11224 struct hostap_sta_driver_data *data, 11225 const u8 *addr) 11226{ 11227 struct i802_bss *bss = priv; 11228 return i802_read_sta_data(bss, data, addr); 11229} 11230 11231 11232static int driver_nl80211_send_action(void *priv, unsigned int freq, 11233 unsigned int wait_time, 11234 const u8 *dst, const u8 *src, 11235 const u8 *bssid, 11236 const u8 *data, size_t data_len, 11237 int no_cck) 11238{ 11239 struct i802_bss *bss = priv; 11240 return wpa_driver_nl80211_send_action(bss, freq, wait_time, dst, src, 11241 bssid, data, data_len, no_cck); 11242} 11243 11244 11245static int driver_nl80211_probe_req_report(void *priv, int report) 11246{ 11247 struct i802_bss *bss = priv; 11248 return wpa_driver_nl80211_probe_req_report(bss, report); 11249} 11250 11251 11252static int wpa_driver_nl80211_update_ft_ies(void *priv, const u8 *md, 11253 const u8 *ies, size_t ies_len) 11254{ 11255 int ret; 11256 struct nl_msg *msg; 11257 struct i802_bss *bss = priv; 11258 struct wpa_driver_nl80211_data *drv = bss->drv; 11259 u16 mdid = WPA_GET_LE16(md); 11260 11261 msg = nlmsg_alloc(); 11262 if (!msg) 11263 return -ENOMEM; 11264 11265 wpa_printf(MSG_DEBUG, "nl80211: Updating FT IEs"); 11266 nl80211_cmd(drv, msg, 0, NL80211_CMD_UPDATE_FT_IES); 11267 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11268 NLA_PUT(msg, NL80211_ATTR_IE, ies_len, ies); 11269 NLA_PUT_U16(msg, NL80211_ATTR_MDID, mdid); 11270 11271 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 11272 if (ret) { 11273 wpa_printf(MSG_DEBUG, "nl80211: update_ft_ies failed " 11274 "err=%d (%s)", ret, strerror(-ret)); 11275 } 11276 11277 return ret; 11278 11279nla_put_failure: 11280 nlmsg_free(msg); 11281 return -ENOBUFS; 11282} 11283 11284 11285const u8 * wpa_driver_nl80211_get_macaddr(void *priv) 11286{ 11287 struct i802_bss *bss = priv; 11288 struct wpa_driver_nl80211_data *drv = bss->drv; 11289 11290 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) 11291 return NULL; 11292 11293 return bss->addr; 11294} 11295 11296 11297static const char * scan_state_str(enum scan_states scan_state) 11298{ 11299 switch (scan_state) { 11300 case NO_SCAN: 11301 return "NO_SCAN"; 11302 case SCAN_REQUESTED: 11303 return "SCAN_REQUESTED"; 11304 case SCAN_STARTED: 11305 return "SCAN_STARTED"; 11306 case SCAN_COMPLETED: 11307 return "SCAN_COMPLETED"; 11308 case SCAN_ABORTED: 11309 return "SCAN_ABORTED"; 11310 case SCHED_SCAN_STARTED: 11311 return "SCHED_SCAN_STARTED"; 11312 case SCHED_SCAN_STOPPED: 11313 return "SCHED_SCAN_STOPPED"; 11314 case SCHED_SCAN_RESULTS: 11315 return "SCHED_SCAN_RESULTS"; 11316 } 11317 11318 return "??"; 11319} 11320 11321 11322static int wpa_driver_nl80211_status(void *priv, char *buf, size_t buflen) 11323{ 11324 struct i802_bss *bss = priv; 11325 struct wpa_driver_nl80211_data *drv = bss->drv; 11326 int res; 11327 char *pos, *end; 11328 11329 pos = buf; 11330 end = buf + buflen; 11331 11332 res = os_snprintf(pos, end - pos, 11333 "ifindex=%d\n" 11334 "ifname=%s\n" 11335 "brname=%s\n" 11336 "addr=" MACSTR "\n" 11337 "freq=%d\n" 11338 "%s%s%s%s%s", 11339 bss->ifindex, 11340 bss->ifname, 11341 bss->brname, 11342 MAC2STR(bss->addr), 11343 bss->freq, 11344 bss->beacon_set ? "beacon_set=1\n" : "", 11345 bss->added_if_into_bridge ? 11346 "added_if_into_bridge=1\n" : "", 11347 bss->added_bridge ? "added_bridge=1\n" : "", 11348 bss->in_deinit ? "in_deinit=1\n" : "", 11349 bss->if_dynamic ? "if_dynamic=1\n" : ""); 11350 if (res < 0 || res >= end - pos) 11351 return pos - buf; 11352 pos += res; 11353 11354 if (bss->wdev_id_set) { 11355 res = os_snprintf(pos, end - pos, "wdev_id=%llu\n", 11356 (unsigned long long) bss->wdev_id); 11357 if (res < 0 || res >= end - pos) 11358 return pos - buf; 11359 pos += res; 11360 } 11361 11362 res = os_snprintf(pos, end - pos, 11363 "phyname=%s\n" 11364 "drv_ifindex=%d\n" 11365 "operstate=%d\n" 11366 "scan_state=%s\n" 11367 "auth_bssid=" MACSTR "\n" 11368 "auth_attempt_bssid=" MACSTR "\n" 11369 "bssid=" MACSTR "\n" 11370 "prev_bssid=" MACSTR "\n" 11371 "associated=%d\n" 11372 "assoc_freq=%u\n" 11373 "monitor_sock=%d\n" 11374 "monitor_ifidx=%d\n" 11375 "monitor_refcount=%d\n" 11376 "last_mgmt_freq=%u\n" 11377 "eapol_tx_sock=%d\n" 11378 "%s%s%s%s%s%s%s%s%s%s%s%s%s", 11379 drv->phyname, 11380 drv->ifindex, 11381 drv->operstate, 11382 scan_state_str(drv->scan_state), 11383 MAC2STR(drv->auth_bssid), 11384 MAC2STR(drv->auth_attempt_bssid), 11385 MAC2STR(drv->bssid), 11386 MAC2STR(drv->prev_bssid), 11387 drv->associated, 11388 drv->assoc_freq, 11389 drv->monitor_sock, 11390 drv->monitor_ifidx, 11391 drv->monitor_refcount, 11392 drv->last_mgmt_freq, 11393 drv->eapol_tx_sock, 11394 drv->ignore_if_down_event ? 11395 "ignore_if_down_event=1\n" : "", 11396 drv->scan_complete_events ? 11397 "scan_complete_events=1\n" : "", 11398 drv->disabled_11b_rates ? 11399 "disabled_11b_rates=1\n" : "", 11400 drv->pending_remain_on_chan ? 11401 "pending_remain_on_chan=1\n" : "", 11402 drv->in_interface_list ? "in_interface_list=1\n" : "", 11403 drv->device_ap_sme ? "device_ap_sme=1\n" : "", 11404 drv->poll_command_supported ? 11405 "poll_command_supported=1\n" : "", 11406 drv->data_tx_status ? "data_tx_status=1\n" : "", 11407 drv->scan_for_auth ? "scan_for_auth=1\n" : "", 11408 drv->retry_auth ? "retry_auth=1\n" : "", 11409 drv->use_monitor ? "use_monitor=1\n" : "", 11410 drv->ignore_next_local_disconnect ? 11411 "ignore_next_local_disconnect=1\n" : "", 11412 drv->allow_p2p_device ? "allow_p2p_device=1\n" : ""); 11413 if (res < 0 || res >= end - pos) 11414 return pos - buf; 11415 pos += res; 11416 11417 if (drv->has_capability) { 11418 res = os_snprintf(pos, end - pos, 11419 "capa.key_mgmt=0x%x\n" 11420 "capa.enc=0x%x\n" 11421 "capa.auth=0x%x\n" 11422 "capa.flags=0x%x\n" 11423 "capa.max_scan_ssids=%d\n" 11424 "capa.max_sched_scan_ssids=%d\n" 11425 "capa.sched_scan_supported=%d\n" 11426 "capa.max_match_sets=%d\n" 11427 "capa.max_remain_on_chan=%u\n" 11428 "capa.max_stations=%u\n" 11429 "capa.probe_resp_offloads=0x%x\n" 11430 "capa.max_acl_mac_addrs=%u\n" 11431 "capa.num_multichan_concurrent=%u\n", 11432 drv->capa.key_mgmt, 11433 drv->capa.enc, 11434 drv->capa.auth, 11435 drv->capa.flags, 11436 drv->capa.max_scan_ssids, 11437 drv->capa.max_sched_scan_ssids, 11438 drv->capa.sched_scan_supported, 11439 drv->capa.max_match_sets, 11440 drv->capa.max_remain_on_chan, 11441 drv->capa.max_stations, 11442 drv->capa.probe_resp_offloads, 11443 drv->capa.max_acl_mac_addrs, 11444 drv->capa.num_multichan_concurrent); 11445 if (res < 0 || res >= end - pos) 11446 return pos - buf; 11447 pos += res; 11448 } 11449 11450 return pos - buf; 11451} 11452 11453 11454static int set_beacon_data(struct nl_msg *msg, struct beacon_data *settings) 11455{ 11456 if (settings->head) 11457 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, 11458 settings->head_len, settings->head); 11459 11460 if (settings->tail) 11461 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, 11462 settings->tail_len, settings->tail); 11463 11464 if (settings->beacon_ies) 11465 NLA_PUT(msg, NL80211_ATTR_IE, 11466 settings->beacon_ies_len, settings->beacon_ies); 11467 11468 if (settings->proberesp_ies) 11469 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, 11470 settings->proberesp_ies_len, settings->proberesp_ies); 11471 11472 if (settings->assocresp_ies) 11473 NLA_PUT(msg, 11474 NL80211_ATTR_IE_ASSOC_RESP, 11475 settings->assocresp_ies_len, settings->assocresp_ies); 11476 11477 if (settings->probe_resp) 11478 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, 11479 settings->probe_resp_len, settings->probe_resp); 11480 11481 return 0; 11482 11483nla_put_failure: 11484 return -ENOBUFS; 11485} 11486 11487 11488static int nl80211_switch_channel(void *priv, struct csa_settings *settings) 11489{ 11490 struct nl_msg *msg; 11491 struct i802_bss *bss = priv; 11492 struct wpa_driver_nl80211_data *drv = bss->drv; 11493 struct nlattr *beacon_csa; 11494 int ret = -ENOBUFS; 11495 11496 wpa_printf(MSG_DEBUG, "nl80211: Channel switch request (cs_count=%u block_tx=%u freq=%d width=%d cf1=%d cf2=%d)", 11497 settings->cs_count, settings->block_tx, 11498 settings->freq_params.freq, settings->freq_params.bandwidth, 11499 settings->freq_params.center_freq1, 11500 settings->freq_params.center_freq2); 11501 11502 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_AP_CSA)) { 11503 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support channel switch command"); 11504 return -EOPNOTSUPP; 11505 } 11506 11507 if ((drv->nlmode != NL80211_IFTYPE_AP) && 11508 (drv->nlmode != NL80211_IFTYPE_P2P_GO)) 11509 return -EOPNOTSUPP; 11510 11511 /* check settings validity */ 11512 if (!settings->beacon_csa.tail || 11513 ((settings->beacon_csa.tail_len <= 11514 settings->counter_offset_beacon) || 11515 (settings->beacon_csa.tail[settings->counter_offset_beacon] != 11516 settings->cs_count))) 11517 return -EINVAL; 11518 11519 if (settings->beacon_csa.probe_resp && 11520 ((settings->beacon_csa.probe_resp_len <= 11521 settings->counter_offset_presp) || 11522 (settings->beacon_csa.probe_resp[settings->counter_offset_presp] != 11523 settings->cs_count))) 11524 return -EINVAL; 11525 11526 msg = nlmsg_alloc(); 11527 if (!msg) 11528 return -ENOMEM; 11529 11530 nl80211_cmd(drv, msg, 0, NL80211_CMD_CHANNEL_SWITCH); 11531 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11532 NLA_PUT_U32(msg, NL80211_ATTR_CH_SWITCH_COUNT, settings->cs_count); 11533 ret = nl80211_put_freq_params(msg, &settings->freq_params); 11534 if (ret) 11535 goto error; 11536 11537 if (settings->block_tx) 11538 NLA_PUT_FLAG(msg, NL80211_ATTR_CH_SWITCH_BLOCK_TX); 11539 11540 /* beacon_after params */ 11541 ret = set_beacon_data(msg, &settings->beacon_after); 11542 if (ret) 11543 goto error; 11544 11545 /* beacon_csa params */ 11546 beacon_csa = nla_nest_start(msg, NL80211_ATTR_CSA_IES); 11547 if (!beacon_csa) 11548 goto nla_put_failure; 11549 11550 ret = set_beacon_data(msg, &settings->beacon_csa); 11551 if (ret) 11552 goto error; 11553 11554 NLA_PUT_U16(msg, NL80211_ATTR_CSA_C_OFF_BEACON, 11555 settings->counter_offset_beacon); 11556 11557 if (settings->beacon_csa.probe_resp) 11558 NLA_PUT_U16(msg, NL80211_ATTR_CSA_C_OFF_PRESP, 11559 settings->counter_offset_presp); 11560 11561 nla_nest_end(msg, beacon_csa); 11562 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 11563 if (ret) { 11564 wpa_printf(MSG_DEBUG, "nl80211: switch_channel failed err=%d (%s)", 11565 ret, strerror(-ret)); 11566 } 11567 return ret; 11568 11569nla_put_failure: 11570 ret = -ENOBUFS; 11571error: 11572 nlmsg_free(msg); 11573 wpa_printf(MSG_DEBUG, "nl80211: Could not build channel switch request"); 11574 return ret; 11575} 11576 11577 11578static int nl80211_set_qos_map(void *priv, const u8 *qos_map_set, 11579 u8 qos_map_set_len) 11580{ 11581 struct i802_bss *bss = priv; 11582 struct wpa_driver_nl80211_data *drv = bss->drv; 11583 struct nl_msg *msg; 11584 int ret; 11585 11586 msg = nlmsg_alloc(); 11587 if (!msg) 11588 return -ENOMEM; 11589 11590 wpa_hexdump(MSG_DEBUG, "nl80211: Setting QoS Map", 11591 qos_map_set, qos_map_set_len); 11592 11593 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_QOS_MAP); 11594 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11595 NLA_PUT(msg, NL80211_ATTR_QOS_MAP, qos_map_set_len, qos_map_set); 11596 11597 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 11598 if (ret) 11599 wpa_printf(MSG_DEBUG, "nl80211: Setting QoS Map failed"); 11600 11601 return ret; 11602 11603nla_put_failure: 11604 nlmsg_free(msg); 11605 return -ENOBUFS; 11606} 11607 11608 11609const struct wpa_driver_ops wpa_driver_nl80211_ops = { 11610 .name = "nl80211", 11611 .desc = "Linux nl80211/cfg80211", 11612 .get_bssid = wpa_driver_nl80211_get_bssid, 11613 .get_ssid = wpa_driver_nl80211_get_ssid, 11614 .set_key = driver_nl80211_set_key, 11615 .scan2 = driver_nl80211_scan2, 11616 .sched_scan = wpa_driver_nl80211_sched_scan, 11617 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan, 11618 .get_scan_results2 = wpa_driver_nl80211_get_scan_results, 11619 .deauthenticate = driver_nl80211_deauthenticate, 11620 .authenticate = driver_nl80211_authenticate, 11621 .associate = wpa_driver_nl80211_associate, 11622 .global_init = nl80211_global_init, 11623 .global_deinit = nl80211_global_deinit, 11624 .init2 = wpa_driver_nl80211_init, 11625 .deinit = driver_nl80211_deinit, 11626 .get_capa = wpa_driver_nl80211_get_capa, 11627 .set_operstate = wpa_driver_nl80211_set_operstate, 11628 .set_supp_port = wpa_driver_nl80211_set_supp_port, 11629 .set_country = wpa_driver_nl80211_set_country, 11630 .get_country = wpa_driver_nl80211_get_country, 11631 .set_ap = wpa_driver_nl80211_set_ap, 11632 .set_acl = wpa_driver_nl80211_set_acl, 11633 .if_add = wpa_driver_nl80211_if_add, 11634 .if_remove = driver_nl80211_if_remove, 11635 .send_mlme = driver_nl80211_send_mlme, 11636 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data, 11637 .sta_add = wpa_driver_nl80211_sta_add, 11638 .sta_remove = driver_nl80211_sta_remove, 11639 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol, 11640 .sta_set_flags = wpa_driver_nl80211_sta_set_flags, 11641 .hapd_init = i802_init, 11642 .hapd_deinit = i802_deinit, 11643 .set_wds_sta = i802_set_wds_sta, 11644 .get_seqnum = i802_get_seqnum, 11645 .flush = i802_flush, 11646 .get_inact_sec = i802_get_inact_sec, 11647 .sta_clear_stats = i802_sta_clear_stats, 11648 .set_rts = i802_set_rts, 11649 .set_frag = i802_set_frag, 11650 .set_tx_queue_params = i802_set_tx_queue_params, 11651 .set_sta_vlan = driver_nl80211_set_sta_vlan, 11652 .sta_deauth = i802_sta_deauth, 11653 .sta_disassoc = i802_sta_disassoc, 11654 .read_sta_data = driver_nl80211_read_sta_data, 11655 .set_freq = i802_set_freq, 11656 .send_action = driver_nl80211_send_action, 11657 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait, 11658 .remain_on_channel = wpa_driver_nl80211_remain_on_channel, 11659 .cancel_remain_on_channel = 11660 wpa_driver_nl80211_cancel_remain_on_channel, 11661 .probe_req_report = driver_nl80211_probe_req_report, 11662 .deinit_ap = wpa_driver_nl80211_deinit_ap, 11663 .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli, 11664 .resume = wpa_driver_nl80211_resume, 11665 .send_ft_action = nl80211_send_ft_action, 11666 .signal_monitor = nl80211_signal_monitor, 11667 .signal_poll = nl80211_signal_poll, 11668 .send_frame = nl80211_send_frame, 11669 .shared_freq = wpa_driver_nl80211_shared_freq, 11670 .set_param = nl80211_set_param, 11671 .get_radio_name = nl80211_get_radio_name, 11672 .add_pmkid = nl80211_add_pmkid, 11673 .remove_pmkid = nl80211_remove_pmkid, 11674 .flush_pmkid = nl80211_flush_pmkid, 11675 .set_rekey_info = nl80211_set_rekey_info, 11676 .poll_client = nl80211_poll_client, 11677 .set_p2p_powersave = nl80211_set_p2p_powersave, 11678 .start_dfs_cac = nl80211_start_radar_detection, 11679 .stop_ap = wpa_driver_nl80211_stop_ap, 11680#ifdef CONFIG_TDLS 11681 .send_tdls_mgmt = nl80211_send_tdls_mgmt, 11682 .tdls_oper = nl80211_tdls_oper, 11683#endif /* CONFIG_TDLS */ 11684 .update_ft_ies = wpa_driver_nl80211_update_ft_ies, 11685 .get_mac_addr = wpa_driver_nl80211_get_macaddr, 11686 .get_survey = wpa_driver_nl80211_get_survey, 11687 .status = wpa_driver_nl80211_status, 11688 .switch_channel = nl80211_switch_channel, 11689#ifdef ANDROID_P2P 11690 .set_noa = wpa_driver_set_p2p_noa, 11691 .get_noa = wpa_driver_get_p2p_noa, 11692 .set_ap_wps_ie = wpa_driver_set_ap_wps_p2p_ie, 11693#endif /* ANDROID_P2P */ 11694#ifdef ANDROID 11695 .driver_cmd = wpa_driver_nl80211_driver_cmd, 11696#endif /* ANDROID */ 11697 .set_qos_map = nl80211_set_qos_map, 11698}; 11699