driver_nl80211.c revision 9767226d8e6a1adaa33beb9f517ef40dddfa460c
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 int calculate_chan_offset(int width, int freq, int cf1, int cf2) 1554{ 1555 int freq1 = 0; 1556 1557 switch (convert2width(width)) { 1558 case CHAN_WIDTH_20_NOHT: 1559 case CHAN_WIDTH_20: 1560 return 0; 1561 case CHAN_WIDTH_40: 1562 freq1 = cf1 - 10; 1563 break; 1564 case CHAN_WIDTH_80: 1565 freq1 = cf1 - 30; 1566 break; 1567 case CHAN_WIDTH_160: 1568 freq1 = cf1 - 70; 1569 break; 1570 case CHAN_WIDTH_UNKNOWN: 1571 case CHAN_WIDTH_80P80: 1572 /* FIXME: implement this */ 1573 return 0; 1574 } 1575 1576 return (abs(freq - freq1) / 20) % 2 == 0 ? 1 : -1; 1577} 1578 1579 1580static void mlme_event_ch_switch(struct wpa_driver_nl80211_data *drv, 1581 struct nlattr *ifindex, struct nlattr *freq, 1582 struct nlattr *type, struct nlattr *bw, 1583 struct nlattr *cf1, struct nlattr *cf2) 1584{ 1585 struct i802_bss *bss; 1586 union wpa_event_data data; 1587 int ht_enabled = 1; 1588 int chan_offset = 0; 1589 int ifidx; 1590 1591 wpa_printf(MSG_DEBUG, "nl80211: Channel switch event"); 1592 1593 if (!freq) 1594 return; 1595 1596 ifidx = nla_get_u32(ifindex); 1597 for (bss = drv->first_bss; bss; bss = bss->next) 1598 if (bss->ifindex == ifidx) 1599 break; 1600 1601 if (bss == NULL) { 1602 wpa_printf(MSG_WARNING, "nl80211: Unknown ifindex (%d) for channel switch, ignoring", 1603 ifidx); 1604 return; 1605 } 1606 1607 if (type) { 1608 switch (nla_get_u32(type)) { 1609 case NL80211_CHAN_NO_HT: 1610 ht_enabled = 0; 1611 break; 1612 case NL80211_CHAN_HT20: 1613 break; 1614 case NL80211_CHAN_HT40PLUS: 1615 chan_offset = 1; 1616 break; 1617 case NL80211_CHAN_HT40MINUS: 1618 chan_offset = -1; 1619 break; 1620 } 1621 } else if (bw && cf1) { 1622 /* This can happen for example with VHT80 ch switch */ 1623 chan_offset = calculate_chan_offset(nla_get_u32(bw), 1624 nla_get_u32(freq), 1625 nla_get_u32(cf1), 1626 cf2 ? nla_get_u32(cf2) : 0); 1627 } else { 1628 wpa_printf(MSG_WARNING, "nl80211: Unknown secondary channel information - following channel definition calculations may fail"); 1629 } 1630 1631 os_memset(&data, 0, sizeof(data)); 1632 data.ch_switch.freq = nla_get_u32(freq); 1633 data.ch_switch.ht_enabled = ht_enabled; 1634 data.ch_switch.ch_offset = chan_offset; 1635 if (bw) 1636 data.ch_switch.ch_width = convert2width(nla_get_u32(bw)); 1637 if (cf1) 1638 data.ch_switch.cf1 = nla_get_u32(cf1); 1639 if (cf2) 1640 data.ch_switch.cf2 = nla_get_u32(cf2); 1641 1642 bss->freq = data.ch_switch.freq; 1643 1644 wpa_supplicant_event(drv->ctx, EVENT_CH_SWITCH, &data); 1645} 1646 1647 1648static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv, 1649 enum nl80211_commands cmd, struct nlattr *addr) 1650{ 1651 union wpa_event_data event; 1652 enum wpa_event_type ev; 1653 1654 if (nla_len(addr) != ETH_ALEN) 1655 return; 1656 1657 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR, 1658 cmd, MAC2STR((u8 *) nla_data(addr))); 1659 1660 if (cmd == NL80211_CMD_AUTHENTICATE) 1661 ev = EVENT_AUTH_TIMED_OUT; 1662 else if (cmd == NL80211_CMD_ASSOCIATE) 1663 ev = EVENT_ASSOC_TIMED_OUT; 1664 else 1665 return; 1666 1667 os_memset(&event, 0, sizeof(event)); 1668 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN); 1669 wpa_supplicant_event(drv->ctx, ev, &event); 1670} 1671 1672 1673static void mlme_event_mgmt(struct wpa_driver_nl80211_data *drv, 1674 struct nlattr *freq, struct nlattr *sig, 1675 const u8 *frame, size_t len) 1676{ 1677 const struct ieee80211_mgmt *mgmt; 1678 union wpa_event_data event; 1679 u16 fc, stype; 1680 int ssi_signal = 0; 1681 int rx_freq = 0; 1682 1683 wpa_printf(MSG_MSGDUMP, "nl80211: Frame event"); 1684 mgmt = (const struct ieee80211_mgmt *) frame; 1685 if (len < 24) { 1686 wpa_printf(MSG_DEBUG, "nl80211: Too short management frame"); 1687 return; 1688 } 1689 1690 fc = le_to_host16(mgmt->frame_control); 1691 stype = WLAN_FC_GET_STYPE(fc); 1692 1693 if (sig) 1694 ssi_signal = (s32) nla_get_u32(sig); 1695 1696 os_memset(&event, 0, sizeof(event)); 1697 if (freq) { 1698 event.rx_mgmt.freq = nla_get_u32(freq); 1699 rx_freq = drv->last_mgmt_freq = event.rx_mgmt.freq; 1700 } 1701 wpa_printf(MSG_DEBUG, 1702 "nl80211: RX frame freq=%d ssi_signal=%d stype=%u len=%u", 1703 rx_freq, ssi_signal, stype, (unsigned int) len); 1704 event.rx_mgmt.frame = frame; 1705 event.rx_mgmt.frame_len = len; 1706 event.rx_mgmt.ssi_signal = ssi_signal; 1707 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 1708} 1709 1710 1711static void mlme_event_mgmt_tx_status(struct wpa_driver_nl80211_data *drv, 1712 struct nlattr *cookie, const u8 *frame, 1713 size_t len, struct nlattr *ack) 1714{ 1715 union wpa_event_data event; 1716 const struct ieee80211_hdr *hdr; 1717 u16 fc; 1718 1719 wpa_printf(MSG_DEBUG, "nl80211: Frame TX status event"); 1720 if (!is_ap_interface(drv->nlmode)) { 1721 u64 cookie_val; 1722 1723 if (!cookie) 1724 return; 1725 1726 cookie_val = nla_get_u64(cookie); 1727 wpa_printf(MSG_DEBUG, "nl80211: Action TX status:" 1728 " cookie=0%llx%s (ack=%d)", 1729 (long long unsigned int) cookie_val, 1730 cookie_val == drv->send_action_cookie ? 1731 " (match)" : " (unknown)", ack != NULL); 1732 if (cookie_val != drv->send_action_cookie) 1733 return; 1734 } 1735 1736 hdr = (const struct ieee80211_hdr *) frame; 1737 fc = le_to_host16(hdr->frame_control); 1738 1739 os_memset(&event, 0, sizeof(event)); 1740 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 1741 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 1742 event.tx_status.dst = hdr->addr1; 1743 event.tx_status.data = frame; 1744 event.tx_status.data_len = len; 1745 event.tx_status.ack = ack != NULL; 1746 wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event); 1747} 1748 1749 1750static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv, 1751 enum wpa_event_type type, 1752 const u8 *frame, size_t len) 1753{ 1754 const struct ieee80211_mgmt *mgmt; 1755 union wpa_event_data event; 1756 const u8 *bssid = NULL; 1757 u16 reason_code = 0; 1758 1759 if (type == EVENT_DEAUTH) 1760 wpa_printf(MSG_DEBUG, "nl80211: Deauthenticate event"); 1761 else 1762 wpa_printf(MSG_DEBUG, "nl80211: Disassociate event"); 1763 1764 mgmt = (const struct ieee80211_mgmt *) frame; 1765 if (len >= 24) { 1766 bssid = mgmt->bssid; 1767 1768 if ((drv->capa.flags & WPA_DRIVER_FLAGS_SME) && 1769 !drv->associated && 1770 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0 && 1771 os_memcmp(bssid, drv->auth_attempt_bssid, ETH_ALEN) != 0 && 1772 os_memcmp(bssid, drv->prev_bssid, ETH_ALEN) == 0) { 1773 /* 1774 * Avoid issues with some roaming cases where 1775 * disconnection event for the old AP may show up after 1776 * we have started connection with the new AP. 1777 */ 1778 wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth/disassoc event from old AP " MACSTR " when already authenticating with " MACSTR, 1779 MAC2STR(bssid), 1780 MAC2STR(drv->auth_attempt_bssid)); 1781 return; 1782 } 1783 1784 if (drv->associated != 0 && 1785 os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 && 1786 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) { 1787 /* 1788 * We have presumably received this deauth as a 1789 * response to a clear_state_mismatch() outgoing 1790 * deauth. Don't let it take us offline! 1791 */ 1792 wpa_printf(MSG_DEBUG, "nl80211: Deauth received " 1793 "from Unknown BSSID " MACSTR " -- ignoring", 1794 MAC2STR(bssid)); 1795 return; 1796 } 1797 } 1798 1799 nl80211_mark_disconnected(drv); 1800 os_memset(&event, 0, sizeof(event)); 1801 1802 /* Note: Same offset for Reason Code in both frame subtypes */ 1803 if (len >= 24 + sizeof(mgmt->u.deauth)) 1804 reason_code = le_to_host16(mgmt->u.deauth.reason_code); 1805 1806 if (type == EVENT_DISASSOC) { 1807 event.disassoc_info.locally_generated = 1808 !os_memcmp(mgmt->sa, drv->first_bss->addr, ETH_ALEN); 1809 event.disassoc_info.addr = bssid; 1810 event.disassoc_info.reason_code = reason_code; 1811 if (frame + len > mgmt->u.disassoc.variable) { 1812 event.disassoc_info.ie = mgmt->u.disassoc.variable; 1813 event.disassoc_info.ie_len = frame + len - 1814 mgmt->u.disassoc.variable; 1815 } 1816 } else { 1817 event.deauth_info.locally_generated = 1818 !os_memcmp(mgmt->sa, drv->first_bss->addr, ETH_ALEN); 1819 event.deauth_info.addr = bssid; 1820 event.deauth_info.reason_code = reason_code; 1821 if (frame + len > mgmt->u.deauth.variable) { 1822 event.deauth_info.ie = mgmt->u.deauth.variable; 1823 event.deauth_info.ie_len = frame + len - 1824 mgmt->u.deauth.variable; 1825 } 1826 } 1827 1828 wpa_supplicant_event(drv->ctx, type, &event); 1829} 1830 1831 1832static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv, 1833 enum wpa_event_type type, 1834 const u8 *frame, size_t len) 1835{ 1836 const struct ieee80211_mgmt *mgmt; 1837 union wpa_event_data event; 1838 u16 reason_code = 0; 1839 1840 if (type == EVENT_UNPROT_DEAUTH) 1841 wpa_printf(MSG_DEBUG, "nl80211: Unprot Deauthenticate event"); 1842 else 1843 wpa_printf(MSG_DEBUG, "nl80211: Unprot Disassociate event"); 1844 1845 if (len < 24) 1846 return; 1847 1848 mgmt = (const struct ieee80211_mgmt *) frame; 1849 1850 os_memset(&event, 0, sizeof(event)); 1851 /* Note: Same offset for Reason Code in both frame subtypes */ 1852 if (len >= 24 + sizeof(mgmt->u.deauth)) 1853 reason_code = le_to_host16(mgmt->u.deauth.reason_code); 1854 1855 if (type == EVENT_UNPROT_DISASSOC) { 1856 event.unprot_disassoc.sa = mgmt->sa; 1857 event.unprot_disassoc.da = mgmt->da; 1858 event.unprot_disassoc.reason_code = reason_code; 1859 } else { 1860 event.unprot_deauth.sa = mgmt->sa; 1861 event.unprot_deauth.da = mgmt->da; 1862 event.unprot_deauth.reason_code = reason_code; 1863 } 1864 1865 wpa_supplicant_event(drv->ctx, type, &event); 1866} 1867 1868 1869static void mlme_event(struct i802_bss *bss, 1870 enum nl80211_commands cmd, struct nlattr *frame, 1871 struct nlattr *addr, struct nlattr *timed_out, 1872 struct nlattr *freq, struct nlattr *ack, 1873 struct nlattr *cookie, struct nlattr *sig) 1874{ 1875 struct wpa_driver_nl80211_data *drv = bss->drv; 1876 const u8 *data; 1877 size_t len; 1878 1879 if (timed_out && addr) { 1880 mlme_timeout_event(drv, cmd, addr); 1881 return; 1882 } 1883 1884 if (frame == NULL) { 1885 wpa_printf(MSG_DEBUG, 1886 "nl80211: MLME event %d (%s) without frame data", 1887 cmd, nl80211_command_to_string(cmd)); 1888 return; 1889 } 1890 1891 data = nla_data(frame); 1892 len = nla_len(frame); 1893 if (len < 4 + 2 * ETH_ALEN) { 1894 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" 1895 MACSTR ") - too short", 1896 cmd, nl80211_command_to_string(cmd), bss->ifname, 1897 MAC2STR(bss->addr)); 1898 return; 1899 } 1900 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" MACSTR 1901 ") A1=" MACSTR " A2=" MACSTR, cmd, 1902 nl80211_command_to_string(cmd), bss->ifname, 1903 MAC2STR(bss->addr), MAC2STR(data + 4), 1904 MAC2STR(data + 4 + ETH_ALEN)); 1905 if (cmd != NL80211_CMD_FRAME_TX_STATUS && !(data[4] & 0x01) && 1906 os_memcmp(bss->addr, data + 4, ETH_ALEN) != 0 && 1907 os_memcmp(bss->addr, data + 4 + ETH_ALEN, ETH_ALEN) != 0) { 1908 wpa_printf(MSG_MSGDUMP, "nl80211: %s: Ignore MLME frame event " 1909 "for foreign address", bss->ifname); 1910 return; 1911 } 1912 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame", 1913 nla_data(frame), nla_len(frame)); 1914 1915 switch (cmd) { 1916 case NL80211_CMD_AUTHENTICATE: 1917 mlme_event_auth(drv, nla_data(frame), nla_len(frame)); 1918 break; 1919 case NL80211_CMD_ASSOCIATE: 1920 mlme_event_assoc(drv, nla_data(frame), nla_len(frame)); 1921 break; 1922 case NL80211_CMD_DEAUTHENTICATE: 1923 mlme_event_deauth_disassoc(drv, EVENT_DEAUTH, 1924 nla_data(frame), nla_len(frame)); 1925 break; 1926 case NL80211_CMD_DISASSOCIATE: 1927 mlme_event_deauth_disassoc(drv, EVENT_DISASSOC, 1928 nla_data(frame), nla_len(frame)); 1929 break; 1930 case NL80211_CMD_FRAME: 1931 mlme_event_mgmt(drv, freq, sig, nla_data(frame), 1932 nla_len(frame)); 1933 break; 1934 case NL80211_CMD_FRAME_TX_STATUS: 1935 mlme_event_mgmt_tx_status(drv, cookie, nla_data(frame), 1936 nla_len(frame), ack); 1937 break; 1938 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 1939 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH, 1940 nla_data(frame), nla_len(frame)); 1941 break; 1942 case NL80211_CMD_UNPROT_DISASSOCIATE: 1943 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC, 1944 nla_data(frame), nla_len(frame)); 1945 break; 1946 default: 1947 break; 1948 } 1949} 1950 1951 1952static void mlme_event_michael_mic_failure(struct i802_bss *bss, 1953 struct nlattr *tb[]) 1954{ 1955 union wpa_event_data data; 1956 1957 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure"); 1958 os_memset(&data, 0, sizeof(data)); 1959 if (tb[NL80211_ATTR_MAC]) { 1960 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address", 1961 nla_data(tb[NL80211_ATTR_MAC]), 1962 nla_len(tb[NL80211_ATTR_MAC])); 1963 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]); 1964 } 1965 if (tb[NL80211_ATTR_KEY_SEQ]) { 1966 wpa_hexdump(MSG_DEBUG, "nl80211: TSC", 1967 nla_data(tb[NL80211_ATTR_KEY_SEQ]), 1968 nla_len(tb[NL80211_ATTR_KEY_SEQ])); 1969 } 1970 if (tb[NL80211_ATTR_KEY_TYPE]) { 1971 enum nl80211_key_type key_type = 1972 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]); 1973 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type); 1974 if (key_type == NL80211_KEYTYPE_PAIRWISE) 1975 data.michael_mic_failure.unicast = 1; 1976 } else 1977 data.michael_mic_failure.unicast = 1; 1978 1979 if (tb[NL80211_ATTR_KEY_IDX]) { 1980 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]); 1981 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id); 1982 } 1983 1984 wpa_supplicant_event(bss->ctx, EVENT_MICHAEL_MIC_FAILURE, &data); 1985} 1986 1987 1988static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv, 1989 struct nlattr *tb[]) 1990{ 1991 if (tb[NL80211_ATTR_MAC] == NULL) { 1992 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined " 1993 "event"); 1994 return; 1995 } 1996 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 1997 1998 drv->associated = 1; 1999 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined", 2000 MAC2STR(drv->bssid)); 2001 2002 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL); 2003} 2004 2005 2006static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv, 2007 int cancel_event, struct nlattr *tb[]) 2008{ 2009 unsigned int freq, chan_type, duration; 2010 union wpa_event_data data; 2011 u64 cookie; 2012 2013 if (tb[NL80211_ATTR_WIPHY_FREQ]) 2014 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); 2015 else 2016 freq = 0; 2017 2018 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) 2019 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); 2020 else 2021 chan_type = 0; 2022 2023 if (tb[NL80211_ATTR_DURATION]) 2024 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]); 2025 else 2026 duration = 0; 2027 2028 if (tb[NL80211_ATTR_COOKIE]) 2029 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 2030 else 2031 cookie = 0; 2032 2033 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d " 2034 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))", 2035 cancel_event, freq, chan_type, duration, 2036 (long long unsigned int) cookie, 2037 cookie == drv->remain_on_chan_cookie ? "match" : "unknown"); 2038 2039 if (cookie != drv->remain_on_chan_cookie) 2040 return; /* not for us */ 2041 2042 if (cancel_event) 2043 drv->pending_remain_on_chan = 0; 2044 2045 os_memset(&data, 0, sizeof(data)); 2046 data.remain_on_channel.freq = freq; 2047 data.remain_on_channel.duration = duration; 2048 wpa_supplicant_event(drv->ctx, cancel_event ? 2049 EVENT_CANCEL_REMAIN_ON_CHANNEL : 2050 EVENT_REMAIN_ON_CHANNEL, &data); 2051} 2052 2053 2054static void mlme_event_ft_event(struct wpa_driver_nl80211_data *drv, 2055 struct nlattr *tb[]) 2056{ 2057 union wpa_event_data data; 2058 2059 os_memset(&data, 0, sizeof(data)); 2060 2061 if (tb[NL80211_ATTR_IE]) { 2062 data.ft_ies.ies = nla_data(tb[NL80211_ATTR_IE]); 2063 data.ft_ies.ies_len = nla_len(tb[NL80211_ATTR_IE]); 2064 } 2065 2066 if (tb[NL80211_ATTR_IE_RIC]) { 2067 data.ft_ies.ric_ies = nla_data(tb[NL80211_ATTR_IE_RIC]); 2068 data.ft_ies.ric_ies_len = nla_len(tb[NL80211_ATTR_IE_RIC]); 2069 } 2070 2071 if (tb[NL80211_ATTR_MAC]) 2072 os_memcpy(data.ft_ies.target_ap, 2073 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2074 2075 wpa_printf(MSG_DEBUG, "nl80211: FT event target_ap " MACSTR, 2076 MAC2STR(data.ft_ies.target_ap)); 2077 2078 wpa_supplicant_event(drv->ctx, EVENT_FT_RESPONSE, &data); 2079} 2080 2081 2082static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted, 2083 struct nlattr *tb[]) 2084{ 2085 union wpa_event_data event; 2086 struct nlattr *nl; 2087 int rem; 2088 struct scan_info *info; 2089#define MAX_REPORT_FREQS 50 2090 int freqs[MAX_REPORT_FREQS]; 2091 int num_freqs = 0; 2092 2093 if (drv->scan_for_auth) { 2094 drv->scan_for_auth = 0; 2095 wpa_printf(MSG_DEBUG, "nl80211: Scan results for missing " 2096 "cfg80211 BSS entry"); 2097 wpa_driver_nl80211_authenticate_retry(drv); 2098 return; 2099 } 2100 2101 os_memset(&event, 0, sizeof(event)); 2102 info = &event.scan_info; 2103 info->aborted = aborted; 2104 2105 if (tb[NL80211_ATTR_SCAN_SSIDS]) { 2106 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) { 2107 struct wpa_driver_scan_ssid *s = 2108 &info->ssids[info->num_ssids]; 2109 s->ssid = nla_data(nl); 2110 s->ssid_len = nla_len(nl); 2111 wpa_printf(MSG_DEBUG, "nl80211: Scan probed for SSID '%s'", 2112 wpa_ssid_txt(s->ssid, s->ssid_len)); 2113 info->num_ssids++; 2114 if (info->num_ssids == WPAS_MAX_SCAN_SSIDS) 2115 break; 2116 } 2117 } 2118 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) { 2119 char msg[200], *pos, *end; 2120 int res; 2121 2122 pos = msg; 2123 end = pos + sizeof(msg); 2124 *pos = '\0'; 2125 2126 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem) 2127 { 2128 freqs[num_freqs] = nla_get_u32(nl); 2129 res = os_snprintf(pos, end - pos, " %d", 2130 freqs[num_freqs]); 2131 if (res > 0 && end - pos > res) 2132 pos += res; 2133 num_freqs++; 2134 if (num_freqs == MAX_REPORT_FREQS - 1) 2135 break; 2136 } 2137 info->freqs = freqs; 2138 info->num_freqs = num_freqs; 2139 wpa_printf(MSG_DEBUG, "nl80211: Scan included frequencies:%s", 2140 msg); 2141 } 2142 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event); 2143} 2144 2145 2146static int get_link_signal(struct nl_msg *msg, void *arg) 2147{ 2148 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2149 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2150 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1]; 2151 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = { 2152 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 }, 2153 [NL80211_STA_INFO_SIGNAL_AVG] = { .type = NLA_U8 }, 2154 }; 2155 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1]; 2156 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = { 2157 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 }, 2158 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 }, 2159 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG }, 2160 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG }, 2161 }; 2162 struct wpa_signal_info *sig_change = arg; 2163 2164 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2165 genlmsg_attrlen(gnlh, 0), NULL); 2166 if (!tb[NL80211_ATTR_STA_INFO] || 2167 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX, 2168 tb[NL80211_ATTR_STA_INFO], policy)) 2169 return NL_SKIP; 2170 if (!sinfo[NL80211_STA_INFO_SIGNAL]) 2171 return NL_SKIP; 2172 2173 sig_change->current_signal = 2174 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]); 2175 2176 if (sinfo[NL80211_STA_INFO_SIGNAL_AVG]) 2177 sig_change->avg_signal = 2178 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL_AVG]); 2179 else 2180 sig_change->avg_signal = 0; 2181 2182 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) { 2183 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX, 2184 sinfo[NL80211_STA_INFO_TX_BITRATE], 2185 rate_policy)) { 2186 sig_change->current_txrate = 0; 2187 } else { 2188 if (rinfo[NL80211_RATE_INFO_BITRATE]) { 2189 sig_change->current_txrate = 2190 nla_get_u16(rinfo[ 2191 NL80211_RATE_INFO_BITRATE]) * 100; 2192 } 2193 } 2194 } 2195 2196 return NL_SKIP; 2197} 2198 2199 2200static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv, 2201 struct wpa_signal_info *sig) 2202{ 2203 struct nl_msg *msg; 2204 2205 sig->current_signal = -9999; 2206 sig->current_txrate = 0; 2207 2208 msg = nlmsg_alloc(); 2209 if (!msg) 2210 return -ENOMEM; 2211 2212 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 2213 2214 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2215 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 2216 2217 return send_and_recv_msgs(drv, msg, get_link_signal, sig); 2218 nla_put_failure: 2219 nlmsg_free(msg); 2220 return -ENOBUFS; 2221} 2222 2223 2224static int get_link_noise(struct nl_msg *msg, void *arg) 2225{ 2226 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2227 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2228 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 2229 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 2230 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 2231 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 2232 }; 2233 struct wpa_signal_info *sig_change = arg; 2234 2235 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2236 genlmsg_attrlen(gnlh, 0), NULL); 2237 2238 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 2239 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!"); 2240 return NL_SKIP; 2241 } 2242 2243 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 2244 tb[NL80211_ATTR_SURVEY_INFO], 2245 survey_policy)) { 2246 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested " 2247 "attributes!"); 2248 return NL_SKIP; 2249 } 2250 2251 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 2252 return NL_SKIP; 2253 2254 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 2255 sig_change->frequency) 2256 return NL_SKIP; 2257 2258 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 2259 return NL_SKIP; 2260 2261 sig_change->current_noise = 2262 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 2263 2264 return NL_SKIP; 2265} 2266 2267 2268static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv, 2269 struct wpa_signal_info *sig_change) 2270{ 2271 struct nl_msg *msg; 2272 2273 sig_change->current_noise = 9999; 2274 sig_change->frequency = drv->assoc_freq; 2275 2276 msg = nlmsg_alloc(); 2277 if (!msg) 2278 return -ENOMEM; 2279 2280 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 2281 2282 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2283 2284 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change); 2285 nla_put_failure: 2286 nlmsg_free(msg); 2287 return -ENOBUFS; 2288} 2289 2290 2291static int get_noise_for_scan_results(struct nl_msg *msg, void *arg) 2292{ 2293 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2294 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2295 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 2296 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 2297 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 2298 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 2299 }; 2300 struct wpa_scan_results *scan_results = arg; 2301 struct wpa_scan_res *scan_res; 2302 size_t i; 2303 2304 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2305 genlmsg_attrlen(gnlh, 0), NULL); 2306 2307 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 2308 wpa_printf(MSG_DEBUG, "nl80211: Survey data missing"); 2309 return NL_SKIP; 2310 } 2311 2312 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 2313 tb[NL80211_ATTR_SURVEY_INFO], 2314 survey_policy)) { 2315 wpa_printf(MSG_DEBUG, "nl80211: Failed to parse nested " 2316 "attributes"); 2317 return NL_SKIP; 2318 } 2319 2320 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 2321 return NL_SKIP; 2322 2323 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 2324 return NL_SKIP; 2325 2326 for (i = 0; i < scan_results->num; ++i) { 2327 scan_res = scan_results->res[i]; 2328 if (!scan_res) 2329 continue; 2330 if ((int) nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 2331 scan_res->freq) 2332 continue; 2333 if (!(scan_res->flags & WPA_SCAN_NOISE_INVALID)) 2334 continue; 2335 scan_res->noise = (s8) 2336 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 2337 scan_res->flags &= ~WPA_SCAN_NOISE_INVALID; 2338 } 2339 2340 return NL_SKIP; 2341} 2342 2343 2344static int nl80211_get_noise_for_scan_results( 2345 struct wpa_driver_nl80211_data *drv, 2346 struct wpa_scan_results *scan_res) 2347{ 2348 struct nl_msg *msg; 2349 2350 msg = nlmsg_alloc(); 2351 if (!msg) 2352 return -ENOMEM; 2353 2354 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 2355 2356 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2357 2358 return send_and_recv_msgs(drv, msg, get_noise_for_scan_results, 2359 scan_res); 2360 nla_put_failure: 2361 nlmsg_free(msg); 2362 return -ENOBUFS; 2363} 2364 2365 2366static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv, 2367 struct nlattr *tb[]) 2368{ 2369 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = { 2370 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, 2371 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 }, 2372 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, 2373 [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 }, 2374 }; 2375 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1]; 2376 enum nl80211_cqm_rssi_threshold_event event; 2377 union wpa_event_data ed; 2378 struct wpa_signal_info sig; 2379 int res; 2380 2381 if (tb[NL80211_ATTR_CQM] == NULL || 2382 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM], 2383 cqm_policy)) { 2384 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event"); 2385 return; 2386 } 2387 2388 os_memset(&ed, 0, sizeof(ed)); 2389 2390 if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) { 2391 if (!tb[NL80211_ATTR_MAC]) 2392 return; 2393 os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]), 2394 ETH_ALEN); 2395 wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed); 2396 return; 2397 } 2398 2399 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL) 2400 return; 2401 event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]); 2402 2403 if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) { 2404 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 2405 "event: RSSI high"); 2406 ed.signal_change.above_threshold = 1; 2407 } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) { 2408 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 2409 "event: RSSI low"); 2410 ed.signal_change.above_threshold = 0; 2411 } else 2412 return; 2413 2414 res = nl80211_get_link_signal(drv, &sig); 2415 if (res == 0) { 2416 ed.signal_change.current_signal = sig.current_signal; 2417 ed.signal_change.current_txrate = sig.current_txrate; 2418 wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d", 2419 sig.current_signal, sig.current_txrate); 2420 } 2421 2422 res = nl80211_get_link_noise(drv, &sig); 2423 if (res == 0) { 2424 ed.signal_change.current_noise = sig.current_noise; 2425 wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm", 2426 sig.current_noise); 2427 } 2428 2429 wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed); 2430} 2431 2432 2433static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv, 2434 struct nlattr **tb) 2435{ 2436 u8 *addr; 2437 union wpa_event_data data; 2438 2439 if (tb[NL80211_ATTR_MAC] == NULL) 2440 return; 2441 addr = nla_data(tb[NL80211_ATTR_MAC]); 2442 wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr)); 2443 2444 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2445 u8 *ies = NULL; 2446 size_t ies_len = 0; 2447 if (tb[NL80211_ATTR_IE]) { 2448 ies = nla_data(tb[NL80211_ATTR_IE]); 2449 ies_len = nla_len(tb[NL80211_ATTR_IE]); 2450 } 2451 wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len); 2452 drv_event_assoc(drv->ctx, addr, ies, ies_len, 0); 2453 return; 2454 } 2455 2456 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2457 return; 2458 2459 os_memset(&data, 0, sizeof(data)); 2460 os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN); 2461 wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data); 2462} 2463 2464 2465static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv, 2466 struct nlattr **tb) 2467{ 2468 u8 *addr; 2469 union wpa_event_data data; 2470 2471 if (tb[NL80211_ATTR_MAC] == NULL) 2472 return; 2473 addr = nla_data(tb[NL80211_ATTR_MAC]); 2474 wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR, 2475 MAC2STR(addr)); 2476 2477 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2478 drv_event_disassoc(drv->ctx, addr); 2479 return; 2480 } 2481 2482 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2483 return; 2484 2485 os_memset(&data, 0, sizeof(data)); 2486 os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN); 2487 wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data); 2488} 2489 2490 2491static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv, 2492 struct nlattr **tb) 2493{ 2494 struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA]; 2495 static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = { 2496 [NL80211_REKEY_DATA_KEK] = { 2497 .minlen = NL80211_KEK_LEN, 2498 .maxlen = NL80211_KEK_LEN, 2499 }, 2500 [NL80211_REKEY_DATA_KCK] = { 2501 .minlen = NL80211_KCK_LEN, 2502 .maxlen = NL80211_KCK_LEN, 2503 }, 2504 [NL80211_REKEY_DATA_REPLAY_CTR] = { 2505 .minlen = NL80211_REPLAY_CTR_LEN, 2506 .maxlen = NL80211_REPLAY_CTR_LEN, 2507 }, 2508 }; 2509 union wpa_event_data data; 2510 2511 if (!tb[NL80211_ATTR_MAC]) 2512 return; 2513 if (!tb[NL80211_ATTR_REKEY_DATA]) 2514 return; 2515 if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA, 2516 tb[NL80211_ATTR_REKEY_DATA], rekey_policy)) 2517 return; 2518 if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]) 2519 return; 2520 2521 os_memset(&data, 0, sizeof(data)); 2522 data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]); 2523 wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR, 2524 MAC2STR(data.driver_gtk_rekey.bssid)); 2525 data.driver_gtk_rekey.replay_ctr = 2526 nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]); 2527 wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter", 2528 data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN); 2529 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data); 2530} 2531 2532 2533static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv, 2534 struct nlattr **tb) 2535{ 2536 struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE]; 2537 static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = { 2538 [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 }, 2539 [NL80211_PMKSA_CANDIDATE_BSSID] = { 2540 .minlen = ETH_ALEN, 2541 .maxlen = ETH_ALEN, 2542 }, 2543 [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG }, 2544 }; 2545 union wpa_event_data data; 2546 2547 wpa_printf(MSG_DEBUG, "nl80211: PMKSA candidate event"); 2548 2549 if (!tb[NL80211_ATTR_PMKSA_CANDIDATE]) 2550 return; 2551 if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE, 2552 tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy)) 2553 return; 2554 if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] || 2555 !cand[NL80211_PMKSA_CANDIDATE_BSSID]) 2556 return; 2557 2558 os_memset(&data, 0, sizeof(data)); 2559 os_memcpy(data.pmkid_candidate.bssid, 2560 nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN); 2561 data.pmkid_candidate.index = 2562 nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]); 2563 data.pmkid_candidate.preauth = 2564 cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL; 2565 wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data); 2566} 2567 2568 2569static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv, 2570 struct nlattr **tb) 2571{ 2572 union wpa_event_data data; 2573 2574 wpa_printf(MSG_DEBUG, "nl80211: Probe client event"); 2575 2576 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_ACK]) 2577 return; 2578 2579 os_memset(&data, 0, sizeof(data)); 2580 os_memcpy(data.client_poll.addr, 2581 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2582 2583 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_CLIENT_POLL_OK, &data); 2584} 2585 2586 2587static void nl80211_tdls_oper_event(struct wpa_driver_nl80211_data *drv, 2588 struct nlattr **tb) 2589{ 2590 union wpa_event_data data; 2591 2592 wpa_printf(MSG_DEBUG, "nl80211: TDLS operation event"); 2593 2594 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_TDLS_OPERATION]) 2595 return; 2596 2597 os_memset(&data, 0, sizeof(data)); 2598 os_memcpy(data.tdls.peer, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2599 switch (nla_get_u8(tb[NL80211_ATTR_TDLS_OPERATION])) { 2600 case NL80211_TDLS_SETUP: 2601 wpa_printf(MSG_DEBUG, "nl80211: TDLS setup request for peer " 2602 MACSTR, MAC2STR(data.tdls.peer)); 2603 data.tdls.oper = TDLS_REQUEST_SETUP; 2604 break; 2605 case NL80211_TDLS_TEARDOWN: 2606 wpa_printf(MSG_DEBUG, "nl80211: TDLS teardown request for peer " 2607 MACSTR, MAC2STR(data.tdls.peer)); 2608 data.tdls.oper = TDLS_REQUEST_TEARDOWN; 2609 break; 2610 default: 2611 wpa_printf(MSG_DEBUG, "nl80211: Unsupported TDLS operatione " 2612 "event"); 2613 return; 2614 } 2615 if (tb[NL80211_ATTR_REASON_CODE]) { 2616 data.tdls.reason_code = 2617 nla_get_u16(tb[NL80211_ATTR_REASON_CODE]); 2618 } 2619 2620 wpa_supplicant_event(drv->ctx, EVENT_TDLS, &data); 2621} 2622 2623 2624static void nl80211_stop_ap(struct wpa_driver_nl80211_data *drv, 2625 struct nlattr **tb) 2626{ 2627 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_UNAVAILABLE, NULL); 2628} 2629 2630 2631static void nl80211_connect_failed_event(struct wpa_driver_nl80211_data *drv, 2632 struct nlattr **tb) 2633{ 2634 union wpa_event_data data; 2635 u32 reason; 2636 2637 wpa_printf(MSG_DEBUG, "nl80211: Connect failed event"); 2638 2639 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_CONN_FAILED_REASON]) 2640 return; 2641 2642 os_memset(&data, 0, sizeof(data)); 2643 os_memcpy(data.connect_failed_reason.addr, 2644 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2645 2646 reason = nla_get_u32(tb[NL80211_ATTR_CONN_FAILED_REASON]); 2647 switch (reason) { 2648 case NL80211_CONN_FAIL_MAX_CLIENTS: 2649 wpa_printf(MSG_DEBUG, "nl80211: Max client reached"); 2650 data.connect_failed_reason.code = MAX_CLIENT_REACHED; 2651 break; 2652 case NL80211_CONN_FAIL_BLOCKED_CLIENT: 2653 wpa_printf(MSG_DEBUG, "nl80211: Blocked client " MACSTR 2654 " tried to connect", 2655 MAC2STR(data.connect_failed_reason.addr)); 2656 data.connect_failed_reason.code = BLOCKED_CLIENT; 2657 break; 2658 default: 2659 wpa_printf(MSG_DEBUG, "nl8021l: Unknown connect failed reason " 2660 "%u", reason); 2661 return; 2662 } 2663 2664 wpa_supplicant_event(drv->ctx, EVENT_CONNECT_FAILED_REASON, &data); 2665} 2666 2667 2668static void nl80211_radar_event(struct wpa_driver_nl80211_data *drv, 2669 struct nlattr **tb) 2670{ 2671 union wpa_event_data data; 2672 enum nl80211_radar_event event_type; 2673 2674 if (!tb[NL80211_ATTR_WIPHY_FREQ] || !tb[NL80211_ATTR_RADAR_EVENT]) 2675 return; 2676 2677 os_memset(&data, 0, sizeof(data)); 2678 data.dfs_event.freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); 2679 event_type = nla_get_u32(tb[NL80211_ATTR_RADAR_EVENT]); 2680 2681 /* Check HT params */ 2682 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { 2683 data.dfs_event.ht_enabled = 1; 2684 data.dfs_event.chan_offset = 0; 2685 2686 switch (nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])) { 2687 case NL80211_CHAN_NO_HT: 2688 data.dfs_event.ht_enabled = 0; 2689 break; 2690 case NL80211_CHAN_HT20: 2691 break; 2692 case NL80211_CHAN_HT40PLUS: 2693 data.dfs_event.chan_offset = 1; 2694 break; 2695 case NL80211_CHAN_HT40MINUS: 2696 data.dfs_event.chan_offset = -1; 2697 break; 2698 } 2699 } 2700 2701 /* Get VHT params */ 2702 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) 2703 data.dfs_event.chan_width = 2704 convert2width(nla_get_u32( 2705 tb[NL80211_ATTR_CHANNEL_WIDTH])); 2706 if (tb[NL80211_ATTR_CENTER_FREQ1]) 2707 data.dfs_event.cf1 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); 2708 if (tb[NL80211_ATTR_CENTER_FREQ2]) 2709 data.dfs_event.cf2 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); 2710 2711 wpa_printf(MSG_DEBUG, "nl80211: DFS event on freq %d MHz, ht: %d, offset: %d, width: %d, cf1: %dMHz, cf2: %dMHz", 2712 data.dfs_event.freq, data.dfs_event.ht_enabled, 2713 data.dfs_event.chan_offset, data.dfs_event.chan_width, 2714 data.dfs_event.cf1, data.dfs_event.cf2); 2715 2716 switch (event_type) { 2717 case NL80211_RADAR_DETECTED: 2718 wpa_supplicant_event(drv->ctx, EVENT_DFS_RADAR_DETECTED, &data); 2719 break; 2720 case NL80211_RADAR_CAC_FINISHED: 2721 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_FINISHED, &data); 2722 break; 2723 case NL80211_RADAR_CAC_ABORTED: 2724 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_ABORTED, &data); 2725 break; 2726 case NL80211_RADAR_NOP_FINISHED: 2727 wpa_supplicant_event(drv->ctx, EVENT_DFS_NOP_FINISHED, &data); 2728 break; 2729 default: 2730 wpa_printf(MSG_DEBUG, "nl80211: Unknown radar event %d " 2731 "received", event_type); 2732 break; 2733 } 2734} 2735 2736 2737static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb, 2738 int wds) 2739{ 2740 struct wpa_driver_nl80211_data *drv = bss->drv; 2741 union wpa_event_data event; 2742 2743 if (!tb[NL80211_ATTR_MAC]) 2744 return; 2745 2746 os_memset(&event, 0, sizeof(event)); 2747 event.rx_from_unknown.bssid = bss->addr; 2748 event.rx_from_unknown.addr = nla_data(tb[NL80211_ATTR_MAC]); 2749 event.rx_from_unknown.wds = wds; 2750 2751 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 2752} 2753 2754 2755static void qca_nl80211_avoid_freq(struct wpa_driver_nl80211_data *drv, 2756 const u8 *data, size_t len) 2757{ 2758 u32 i, count; 2759 union wpa_event_data event; 2760 struct wpa_freq_range *range = NULL; 2761 const struct qca_avoid_freq_list *freq_range; 2762 2763 freq_range = (const struct qca_avoid_freq_list *) data; 2764 if (len < sizeof(freq_range->count)) 2765 return; 2766 2767 count = freq_range->count; 2768 if (len < sizeof(freq_range->count) + 2769 count * sizeof(struct qca_avoid_freq_range)) { 2770 wpa_printf(MSG_DEBUG, "nl80211: Ignored too short avoid frequency list (len=%u)", 2771 (unsigned int) len); 2772 return; 2773 } 2774 2775 if (count > 0) { 2776 range = os_calloc(count, sizeof(struct wpa_freq_range)); 2777 if (range == NULL) 2778 return; 2779 } 2780 2781 os_memset(&event, 0, sizeof(event)); 2782 for (i = 0; i < count; i++) { 2783 unsigned int idx = event.freq_range.num; 2784 range[idx].min = freq_range->range[i].start_freq; 2785 range[idx].max = freq_range->range[i].end_freq; 2786 wpa_printf(MSG_DEBUG, "nl80211: Avoid frequency range: %u-%u", 2787 range[idx].min, range[idx].max); 2788 if (range[idx].min > range[idx].max) { 2789 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid frequency range"); 2790 continue; 2791 } 2792 event.freq_range.num++; 2793 } 2794 event.freq_range.range = range; 2795 2796 wpa_supplicant_event(drv->ctx, EVENT_AVOID_FREQUENCIES, &event); 2797 2798 os_free(range); 2799} 2800 2801 2802static void nl80211_vendor_event_qca(struct wpa_driver_nl80211_data *drv, 2803 u32 subcmd, u8 *data, size_t len) 2804{ 2805 switch (subcmd) { 2806 case QCA_NL80211_VENDOR_SUBCMD_AVOID_FREQUENCY: 2807 qca_nl80211_avoid_freq(drv, data, len); 2808 break; 2809 default: 2810 wpa_printf(MSG_DEBUG, 2811 "nl80211: Ignore unsupported QCA vendor event %u", 2812 subcmd); 2813 break; 2814 } 2815} 2816 2817 2818static void nl80211_vendor_event(struct wpa_driver_nl80211_data *drv, 2819 struct nlattr **tb) 2820{ 2821 u32 vendor_id, subcmd, wiphy = 0; 2822 int wiphy_idx; 2823 u8 *data = NULL; 2824 size_t len = 0; 2825 2826 if (!tb[NL80211_ATTR_VENDOR_ID] || 2827 !tb[NL80211_ATTR_VENDOR_SUBCMD]) 2828 return; 2829 2830 vendor_id = nla_get_u32(tb[NL80211_ATTR_VENDOR_ID]); 2831 subcmd = nla_get_u32(tb[NL80211_ATTR_VENDOR_SUBCMD]); 2832 2833 if (tb[NL80211_ATTR_WIPHY]) 2834 wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]); 2835 2836 wpa_printf(MSG_DEBUG, "nl80211: Vendor event: wiphy=%u vendor_id=0x%x subcmd=%u", 2837 wiphy, vendor_id, subcmd); 2838 2839 if (tb[NL80211_ATTR_VENDOR_DATA]) { 2840 data = nla_data(tb[NL80211_ATTR_VENDOR_DATA]); 2841 len = nla_len(tb[NL80211_ATTR_VENDOR_DATA]); 2842 wpa_hexdump(MSG_MSGDUMP, "nl80211: Vendor data", data, len); 2843 } 2844 2845 wiphy_idx = nl80211_get_wiphy_index(drv->first_bss); 2846 if (wiphy_idx >= 0 && wiphy_idx != (int) wiphy) { 2847 wpa_printf(MSG_DEBUG, "nl80211: Ignore vendor event for foreign wiphy %u (own: %d)", 2848 wiphy, wiphy_idx); 2849 return; 2850 } 2851 2852 switch (vendor_id) { 2853 case OUI_QCA: 2854 nl80211_vendor_event_qca(drv, subcmd, data, len); 2855 break; 2856 default: 2857 wpa_printf(MSG_DEBUG, "nl80211: Ignore unsupported vendor event"); 2858 break; 2859 } 2860} 2861 2862 2863static void do_process_drv_event(struct i802_bss *bss, int cmd, 2864 struct nlattr **tb) 2865{ 2866 struct wpa_driver_nl80211_data *drv = bss->drv; 2867 union wpa_event_data data; 2868 2869 wpa_printf(MSG_DEBUG, "nl80211: Drv Event %d (%s) received for %s", 2870 cmd, nl80211_command_to_string(cmd), bss->ifname); 2871 2872 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED && 2873 (cmd == NL80211_CMD_NEW_SCAN_RESULTS || 2874 cmd == NL80211_CMD_SCAN_ABORTED)) { 2875 wpa_driver_nl80211_set_mode(drv->first_bss, 2876 drv->ap_scan_as_station); 2877 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 2878 } 2879 2880 switch (cmd) { 2881 case NL80211_CMD_TRIGGER_SCAN: 2882 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan trigger"); 2883 drv->scan_state = SCAN_STARTED; 2884 wpa_supplicant_event(drv->ctx, EVENT_SCAN_STARTED, NULL); 2885 break; 2886 case NL80211_CMD_START_SCHED_SCAN: 2887 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan started"); 2888 drv->scan_state = SCHED_SCAN_STARTED; 2889 break; 2890 case NL80211_CMD_SCHED_SCAN_STOPPED: 2891 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan stopped"); 2892 drv->scan_state = SCHED_SCAN_STOPPED; 2893 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL); 2894 break; 2895 case NL80211_CMD_NEW_SCAN_RESULTS: 2896 wpa_dbg(drv->ctx, MSG_DEBUG, 2897 "nl80211: New scan results available"); 2898 drv->scan_state = SCAN_COMPLETED; 2899 drv->scan_complete_events = 1; 2900 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 2901 drv->ctx); 2902 send_scan_event(drv, 0, tb); 2903 break; 2904 case NL80211_CMD_SCHED_SCAN_RESULTS: 2905 wpa_dbg(drv->ctx, MSG_DEBUG, 2906 "nl80211: New sched scan results available"); 2907 drv->scan_state = SCHED_SCAN_RESULTS; 2908 send_scan_event(drv, 0, tb); 2909 break; 2910 case NL80211_CMD_SCAN_ABORTED: 2911 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan aborted"); 2912 drv->scan_state = SCAN_ABORTED; 2913 /* 2914 * Need to indicate that scan results are available in order 2915 * not to make wpa_supplicant stop its scanning. 2916 */ 2917 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 2918 drv->ctx); 2919 send_scan_event(drv, 1, tb); 2920 break; 2921 case NL80211_CMD_AUTHENTICATE: 2922 case NL80211_CMD_ASSOCIATE: 2923 case NL80211_CMD_DEAUTHENTICATE: 2924 case NL80211_CMD_DISASSOCIATE: 2925 case NL80211_CMD_FRAME_TX_STATUS: 2926 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 2927 case NL80211_CMD_UNPROT_DISASSOCIATE: 2928 mlme_event(bss, cmd, tb[NL80211_ATTR_FRAME], 2929 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 2930 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 2931 tb[NL80211_ATTR_COOKIE], 2932 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 2933 break; 2934 case NL80211_CMD_CONNECT: 2935 case NL80211_CMD_ROAM: 2936 mlme_event_connect(drv, cmd, 2937 tb[NL80211_ATTR_STATUS_CODE], 2938 tb[NL80211_ATTR_MAC], 2939 tb[NL80211_ATTR_REQ_IE], 2940 tb[NL80211_ATTR_RESP_IE]); 2941 break; 2942 case NL80211_CMD_CH_SWITCH_NOTIFY: 2943 mlme_event_ch_switch(drv, 2944 tb[NL80211_ATTR_IFINDEX], 2945 tb[NL80211_ATTR_WIPHY_FREQ], 2946 tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE], 2947 tb[NL80211_ATTR_CHANNEL_WIDTH], 2948 tb[NL80211_ATTR_CENTER_FREQ1], 2949 tb[NL80211_ATTR_CENTER_FREQ2]); 2950 break; 2951 case NL80211_CMD_DISCONNECT: 2952 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE], 2953 tb[NL80211_ATTR_MAC], 2954 tb[NL80211_ATTR_DISCONNECTED_BY_AP]); 2955 break; 2956 case NL80211_CMD_MICHAEL_MIC_FAILURE: 2957 mlme_event_michael_mic_failure(bss, tb); 2958 break; 2959 case NL80211_CMD_JOIN_IBSS: 2960 mlme_event_join_ibss(drv, tb); 2961 break; 2962 case NL80211_CMD_REMAIN_ON_CHANNEL: 2963 mlme_event_remain_on_channel(drv, 0, tb); 2964 break; 2965 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL: 2966 mlme_event_remain_on_channel(drv, 1, tb); 2967 break; 2968 case NL80211_CMD_NOTIFY_CQM: 2969 nl80211_cqm_event(drv, tb); 2970 break; 2971 case NL80211_CMD_REG_CHANGE: 2972 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change"); 2973 if (tb[NL80211_ATTR_REG_INITIATOR] == NULL) 2974 break; 2975 os_memset(&data, 0, sizeof(data)); 2976 switch (nla_get_u8(tb[NL80211_ATTR_REG_INITIATOR])) { 2977 case NL80211_REGDOM_SET_BY_CORE: 2978 data.channel_list_changed.initiator = 2979 REGDOM_SET_BY_CORE; 2980 break; 2981 case NL80211_REGDOM_SET_BY_USER: 2982 data.channel_list_changed.initiator = 2983 REGDOM_SET_BY_USER; 2984 break; 2985 case NL80211_REGDOM_SET_BY_DRIVER: 2986 data.channel_list_changed.initiator = 2987 REGDOM_SET_BY_DRIVER; 2988 break; 2989 case NL80211_REGDOM_SET_BY_COUNTRY_IE: 2990 data.channel_list_changed.initiator = 2991 REGDOM_SET_BY_COUNTRY_IE; 2992 break; 2993 default: 2994 wpa_printf(MSG_DEBUG, "nl80211: Unknown reg change initiator %d received", 2995 nla_get_u8(tb[NL80211_ATTR_REG_INITIATOR])); 2996 break; 2997 } 2998 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 2999 &data); 3000 break; 3001 case NL80211_CMD_REG_BEACON_HINT: 3002 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint"); 3003 os_memset(&data, 0, sizeof(data)); 3004 data.channel_list_changed.initiator = REGDOM_BEACON_HINT; 3005 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 3006 &data); 3007 break; 3008 case NL80211_CMD_NEW_STATION: 3009 nl80211_new_station_event(drv, tb); 3010 break; 3011 case NL80211_CMD_DEL_STATION: 3012 nl80211_del_station_event(drv, tb); 3013 break; 3014 case NL80211_CMD_SET_REKEY_OFFLOAD: 3015 nl80211_rekey_offload_event(drv, tb); 3016 break; 3017 case NL80211_CMD_PMKSA_CANDIDATE: 3018 nl80211_pmksa_candidate_event(drv, tb); 3019 break; 3020 case NL80211_CMD_PROBE_CLIENT: 3021 nl80211_client_probe_event(drv, tb); 3022 break; 3023 case NL80211_CMD_TDLS_OPER: 3024 nl80211_tdls_oper_event(drv, tb); 3025 break; 3026 case NL80211_CMD_CONN_FAILED: 3027 nl80211_connect_failed_event(drv, tb); 3028 break; 3029 case NL80211_CMD_FT_EVENT: 3030 mlme_event_ft_event(drv, tb); 3031 break; 3032 case NL80211_CMD_RADAR_DETECT: 3033 nl80211_radar_event(drv, tb); 3034 break; 3035 case NL80211_CMD_STOP_AP: 3036 nl80211_stop_ap(drv, tb); 3037 break; 3038 case NL80211_CMD_VENDOR: 3039 nl80211_vendor_event(drv, tb); 3040 break; 3041 default: 3042 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Ignored unknown event " 3043 "(cmd=%d)", cmd); 3044 break; 3045 } 3046} 3047 3048 3049static int process_drv_event(struct nl_msg *msg, void *arg) 3050{ 3051 struct wpa_driver_nl80211_data *drv = arg; 3052 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3053 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3054 struct i802_bss *bss; 3055 int ifidx = -1; 3056 3057 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3058 genlmsg_attrlen(gnlh, 0), NULL); 3059 3060 if (tb[NL80211_ATTR_IFINDEX]) { 3061 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 3062 3063 for (bss = drv->first_bss; bss; bss = bss->next) 3064 if (ifidx == -1 || ifidx == bss->ifindex) { 3065 do_process_drv_event(bss, gnlh->cmd, tb); 3066 return NL_SKIP; 3067 } 3068 wpa_printf(MSG_DEBUG, 3069 "nl80211: Ignored event (cmd=%d) for foreign interface (ifindex %d)", 3070 gnlh->cmd, ifidx); 3071 } else if (tb[NL80211_ATTR_WDEV]) { 3072 u64 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 3073 wpa_printf(MSG_DEBUG, "nl80211: Process event on P2P device"); 3074 for (bss = drv->first_bss; bss; bss = bss->next) { 3075 if (bss->wdev_id_set && wdev_id == bss->wdev_id) { 3076 do_process_drv_event(bss, gnlh->cmd, tb); 3077 return NL_SKIP; 3078 } 3079 } 3080 wpa_printf(MSG_DEBUG, 3081 "nl80211: Ignored event (cmd=%d) for foreign interface (wdev 0x%llx)", 3082 gnlh->cmd, (long long unsigned int) wdev_id); 3083 } 3084 3085 return NL_SKIP; 3086} 3087 3088 3089static int process_global_event(struct nl_msg *msg, void *arg) 3090{ 3091 struct nl80211_global *global = arg; 3092 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3093 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3094 struct wpa_driver_nl80211_data *drv, *tmp; 3095 int ifidx = -1; 3096 struct i802_bss *bss; 3097 u64 wdev_id = 0; 3098 int wdev_id_set = 0; 3099 3100 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3101 genlmsg_attrlen(gnlh, 0), NULL); 3102 3103 if (tb[NL80211_ATTR_IFINDEX]) 3104 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 3105 else if (tb[NL80211_ATTR_WDEV]) { 3106 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 3107 wdev_id_set = 1; 3108 } 3109 3110 dl_list_for_each_safe(drv, tmp, &global->interfaces, 3111 struct wpa_driver_nl80211_data, list) { 3112 for (bss = drv->first_bss; bss; bss = bss->next) { 3113 if ((ifidx == -1 && !wdev_id_set) || 3114 ifidx == bss->ifindex || 3115 (wdev_id_set && bss->wdev_id_set && 3116 wdev_id == bss->wdev_id)) { 3117 do_process_drv_event(bss, gnlh->cmd, tb); 3118 return NL_SKIP; 3119 } 3120 } 3121 } 3122 3123 return NL_SKIP; 3124} 3125 3126 3127static int process_bss_event(struct nl_msg *msg, void *arg) 3128{ 3129 struct i802_bss *bss = arg; 3130 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3131 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3132 3133 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3134 genlmsg_attrlen(gnlh, 0), NULL); 3135 3136 wpa_printf(MSG_DEBUG, "nl80211: BSS Event %d (%s) received for %s", 3137 gnlh->cmd, nl80211_command_to_string(gnlh->cmd), 3138 bss->ifname); 3139 3140 switch (gnlh->cmd) { 3141 case NL80211_CMD_FRAME: 3142 case NL80211_CMD_FRAME_TX_STATUS: 3143 mlme_event(bss, gnlh->cmd, tb[NL80211_ATTR_FRAME], 3144 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 3145 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 3146 tb[NL80211_ATTR_COOKIE], 3147 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 3148 break; 3149 case NL80211_CMD_UNEXPECTED_FRAME: 3150 nl80211_spurious_frame(bss, tb, 0); 3151 break; 3152 case NL80211_CMD_UNEXPECTED_4ADDR_FRAME: 3153 nl80211_spurious_frame(bss, tb, 1); 3154 break; 3155 default: 3156 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event " 3157 "(cmd=%d)", gnlh->cmd); 3158 break; 3159 } 3160 3161 return NL_SKIP; 3162} 3163 3164 3165static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx, 3166 void *handle) 3167{ 3168 struct nl_cb *cb = eloop_ctx; 3169 int res; 3170 3171 wpa_printf(MSG_MSGDUMP, "nl80211: Event message available"); 3172 3173 res = nl_recvmsgs(handle, cb); 3174 if (res) { 3175 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d", 3176 __func__, res); 3177 } 3178} 3179 3180 3181/** 3182 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain 3183 * @priv: driver_nl80211 private data 3184 * @alpha2_arg: country to which to switch to 3185 * Returns: 0 on success, -1 on failure 3186 * 3187 * This asks nl80211 to set the regulatory domain for given 3188 * country ISO / IEC alpha2. 3189 */ 3190static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg) 3191{ 3192 struct i802_bss *bss = priv; 3193 struct wpa_driver_nl80211_data *drv = bss->drv; 3194 char alpha2[3]; 3195 struct nl_msg *msg; 3196 3197 msg = nlmsg_alloc(); 3198 if (!msg) 3199 return -ENOMEM; 3200 3201 alpha2[0] = alpha2_arg[0]; 3202 alpha2[1] = alpha2_arg[1]; 3203 alpha2[2] = '\0'; 3204 3205 nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG); 3206 3207 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2); 3208 if (send_and_recv_msgs(drv, msg, NULL, NULL)) 3209 return -EINVAL; 3210 return 0; 3211nla_put_failure: 3212 nlmsg_free(msg); 3213 return -EINVAL; 3214} 3215 3216 3217static int nl80211_get_country(struct nl_msg *msg, void *arg) 3218{ 3219 char *alpha2 = arg; 3220 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 3221 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3222 3223 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3224 genlmsg_attrlen(gnlh, 0), NULL); 3225 if (!tb_msg[NL80211_ATTR_REG_ALPHA2]) { 3226 wpa_printf(MSG_DEBUG, "nl80211: No country information available"); 3227 return NL_SKIP; 3228 } 3229 os_strlcpy(alpha2, nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]), 3); 3230 return NL_SKIP; 3231} 3232 3233 3234static int wpa_driver_nl80211_get_country(void *priv, char *alpha2) 3235{ 3236 struct i802_bss *bss = priv; 3237 struct wpa_driver_nl80211_data *drv = bss->drv; 3238 struct nl_msg *msg; 3239 int ret; 3240 3241 msg = nlmsg_alloc(); 3242 if (!msg) 3243 return -ENOMEM; 3244 3245 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 3246 alpha2[0] = '\0'; 3247 ret = send_and_recv_msgs(drv, msg, nl80211_get_country, alpha2); 3248 if (!alpha2[0]) 3249 ret = -1; 3250 3251 return ret; 3252} 3253 3254 3255static int protocol_feature_handler(struct nl_msg *msg, void *arg) 3256{ 3257 u32 *feat = arg; 3258 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 3259 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3260 3261 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3262 genlmsg_attrlen(gnlh, 0), NULL); 3263 3264 if (tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]) 3265 *feat = nla_get_u32(tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]); 3266 3267 return NL_SKIP; 3268} 3269 3270 3271static u32 get_nl80211_protocol_features(struct wpa_driver_nl80211_data *drv) 3272{ 3273 u32 feat = 0; 3274 struct nl_msg *msg; 3275 3276 msg = nlmsg_alloc(); 3277 if (!msg) 3278 goto nla_put_failure; 3279 3280 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_PROTOCOL_FEATURES); 3281 if (send_and_recv_msgs(drv, msg, protocol_feature_handler, &feat) == 0) 3282 return feat; 3283 3284 msg = NULL; 3285nla_put_failure: 3286 nlmsg_free(msg); 3287 return 0; 3288} 3289 3290 3291struct wiphy_info_data { 3292 struct wpa_driver_nl80211_data *drv; 3293 struct wpa_driver_capa *capa; 3294 3295 unsigned int num_multichan_concurrent; 3296 3297 unsigned int error:1; 3298 unsigned int device_ap_sme:1; 3299 unsigned int poll_command_supported:1; 3300 unsigned int data_tx_status:1; 3301 unsigned int monitor_supported:1; 3302 unsigned int auth_supported:1; 3303 unsigned int connect_supported:1; 3304 unsigned int p2p_go_supported:1; 3305 unsigned int p2p_client_supported:1; 3306 unsigned int p2p_concurrent:1; 3307 unsigned int channel_switch_supported:1; 3308 unsigned int set_qos_map_supported:1; 3309}; 3310 3311 3312static unsigned int probe_resp_offload_support(int supp_protocols) 3313{ 3314 unsigned int prot = 0; 3315 3316 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS) 3317 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS; 3318 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2) 3319 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2; 3320 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P) 3321 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P; 3322 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U) 3323 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING; 3324 3325 return prot; 3326} 3327 3328 3329static void wiphy_info_supported_iftypes(struct wiphy_info_data *info, 3330 struct nlattr *tb) 3331{ 3332 struct nlattr *nl_mode; 3333 int i; 3334 3335 if (tb == NULL) 3336 return; 3337 3338 nla_for_each_nested(nl_mode, tb, i) { 3339 switch (nla_type(nl_mode)) { 3340 case NL80211_IFTYPE_AP: 3341 info->capa->flags |= WPA_DRIVER_FLAGS_AP; 3342 break; 3343 case NL80211_IFTYPE_ADHOC: 3344 info->capa->flags |= WPA_DRIVER_FLAGS_IBSS; 3345 break; 3346 case NL80211_IFTYPE_P2P_DEVICE: 3347 info->capa->flags |= 3348 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 3349 break; 3350 case NL80211_IFTYPE_P2P_GO: 3351 info->p2p_go_supported = 1; 3352 break; 3353 case NL80211_IFTYPE_P2P_CLIENT: 3354 info->p2p_client_supported = 1; 3355 break; 3356 case NL80211_IFTYPE_MONITOR: 3357 info->monitor_supported = 1; 3358 break; 3359 } 3360 } 3361} 3362 3363 3364static int wiphy_info_iface_comb_process(struct wiphy_info_data *info, 3365 struct nlattr *nl_combi) 3366{ 3367 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB]; 3368 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT]; 3369 struct nlattr *nl_limit, *nl_mode; 3370 int err, rem_limit, rem_mode; 3371 int combination_has_p2p = 0, combination_has_mgd = 0; 3372 static struct nla_policy 3373 iface_combination_policy[NUM_NL80211_IFACE_COMB] = { 3374 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED }, 3375 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 }, 3376 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG }, 3377 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 }, 3378 [NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 }, 3379 }, 3380 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = { 3381 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED }, 3382 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 }, 3383 }; 3384 3385 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB, 3386 nl_combi, iface_combination_policy); 3387 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] || 3388 !tb_comb[NL80211_IFACE_COMB_MAXNUM] || 3389 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) 3390 return 0; /* broken combination */ 3391 3392 if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS]) 3393 info->capa->flags |= WPA_DRIVER_FLAGS_RADAR; 3394 3395 nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS], 3396 rem_limit) { 3397 err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT, 3398 nl_limit, iface_limit_policy); 3399 if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES]) 3400 return 0; /* broken combination */ 3401 3402 nla_for_each_nested(nl_mode, 3403 tb_limit[NL80211_IFACE_LIMIT_TYPES], 3404 rem_mode) { 3405 int ift = nla_type(nl_mode); 3406 if (ift == NL80211_IFTYPE_P2P_GO || 3407 ift == NL80211_IFTYPE_P2P_CLIENT) 3408 combination_has_p2p = 1; 3409 if (ift == NL80211_IFTYPE_STATION) 3410 combination_has_mgd = 1; 3411 } 3412 if (combination_has_p2p && combination_has_mgd) 3413 break; 3414 } 3415 3416 if (combination_has_p2p && combination_has_mgd) { 3417 info->p2p_concurrent = 1; 3418 info->num_multichan_concurrent = 3419 nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]); 3420 return 1; 3421 } 3422 3423 return 0; 3424} 3425 3426 3427static void wiphy_info_iface_comb(struct wiphy_info_data *info, 3428 struct nlattr *tb) 3429{ 3430 struct nlattr *nl_combi; 3431 int rem_combi; 3432 3433 if (tb == NULL) 3434 return; 3435 3436 nla_for_each_nested(nl_combi, tb, rem_combi) { 3437 if (wiphy_info_iface_comb_process(info, nl_combi) > 0) 3438 break; 3439 } 3440} 3441 3442 3443static void wiphy_info_supp_cmds(struct wiphy_info_data *info, 3444 struct nlattr *tb) 3445{ 3446 struct nlattr *nl_cmd; 3447 int i; 3448 3449 if (tb == NULL) 3450 return; 3451 3452 nla_for_each_nested(nl_cmd, tb, i) { 3453 switch (nla_get_u32(nl_cmd)) { 3454 case NL80211_CMD_AUTHENTICATE: 3455 info->auth_supported = 1; 3456 break; 3457 case NL80211_CMD_CONNECT: 3458 info->connect_supported = 1; 3459 break; 3460 case NL80211_CMD_START_SCHED_SCAN: 3461 info->capa->sched_scan_supported = 1; 3462 break; 3463 case NL80211_CMD_PROBE_CLIENT: 3464 info->poll_command_supported = 1; 3465 break; 3466 case NL80211_CMD_CHANNEL_SWITCH: 3467 info->channel_switch_supported = 1; 3468 break; 3469 case NL80211_CMD_SET_QOS_MAP: 3470 info->set_qos_map_supported = 1; 3471 break; 3472 } 3473 } 3474} 3475 3476 3477static void wiphy_info_cipher_suites(struct wiphy_info_data *info, 3478 struct nlattr *tb) 3479{ 3480 int i, num; 3481 u32 *ciphers; 3482 3483 if (tb == NULL) 3484 return; 3485 3486 num = nla_len(tb) / sizeof(u32); 3487 ciphers = nla_data(tb); 3488 for (i = 0; i < num; i++) { 3489 u32 c = ciphers[i]; 3490 3491 wpa_printf(MSG_DEBUG, "nl80211: Supported cipher %02x-%02x-%02x:%d", 3492 c >> 24, (c >> 16) & 0xff, 3493 (c >> 8) & 0xff, c & 0xff); 3494 switch (c) { 3495 case WLAN_CIPHER_SUITE_CCMP_256: 3496 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP_256; 3497 break; 3498 case WLAN_CIPHER_SUITE_GCMP_256: 3499 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP_256; 3500 break; 3501 case WLAN_CIPHER_SUITE_CCMP: 3502 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP; 3503 break; 3504 case WLAN_CIPHER_SUITE_GCMP: 3505 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP; 3506 break; 3507 case WLAN_CIPHER_SUITE_TKIP: 3508 info->capa->enc |= WPA_DRIVER_CAPA_ENC_TKIP; 3509 break; 3510 case WLAN_CIPHER_SUITE_WEP104: 3511 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP104; 3512 break; 3513 case WLAN_CIPHER_SUITE_WEP40: 3514 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP40; 3515 break; 3516 case WLAN_CIPHER_SUITE_AES_CMAC: 3517 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP; 3518 break; 3519 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 3520 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_128; 3521 break; 3522 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 3523 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_256; 3524 break; 3525 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 3526 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_CMAC_256; 3527 break; 3528 } 3529 } 3530} 3531 3532 3533static void wiphy_info_max_roc(struct wpa_driver_capa *capa, 3534 struct nlattr *tb) 3535{ 3536 if (tb) 3537 capa->max_remain_on_chan = nla_get_u32(tb); 3538} 3539 3540 3541static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls, 3542 struct nlattr *ext_setup) 3543{ 3544 if (tdls == NULL) 3545 return; 3546 3547 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported"); 3548 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT; 3549 3550 if (ext_setup) { 3551 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup"); 3552 capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP; 3553 } 3554} 3555 3556 3557static void wiphy_info_feature_flags(struct wiphy_info_data *info, 3558 struct nlattr *tb) 3559{ 3560 u32 flags; 3561 struct wpa_driver_capa *capa = info->capa; 3562 3563 if (tb == NULL) 3564 return; 3565 3566 flags = nla_get_u32(tb); 3567 3568 if (flags & NL80211_FEATURE_SK_TX_STATUS) 3569 info->data_tx_status = 1; 3570 3571 if (flags & NL80211_FEATURE_INACTIVITY_TIMER) 3572 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER; 3573 3574 if (flags & NL80211_FEATURE_SAE) 3575 capa->flags |= WPA_DRIVER_FLAGS_SAE; 3576 3577 if (flags & NL80211_FEATURE_NEED_OBSS_SCAN) 3578 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN; 3579} 3580 3581 3582static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa, 3583 struct nlattr *tb) 3584{ 3585 u32 protocols; 3586 3587 if (tb == NULL) 3588 return; 3589 3590 protocols = nla_get_u32(tb); 3591 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP " 3592 "mode"); 3593 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD; 3594 capa->probe_resp_offloads = probe_resp_offload_support(protocols); 3595} 3596 3597 3598static int wiphy_info_handler(struct nl_msg *msg, void *arg) 3599{ 3600 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3601 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3602 struct wiphy_info_data *info = arg; 3603 struct wpa_driver_capa *capa = info->capa; 3604 struct wpa_driver_nl80211_data *drv = info->drv; 3605 3606 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3607 genlmsg_attrlen(gnlh, 0), NULL); 3608 3609 if (tb[NL80211_ATTR_WIPHY_NAME]) 3610 os_strlcpy(drv->phyname, 3611 nla_get_string(tb[NL80211_ATTR_WIPHY_NAME]), 3612 sizeof(drv->phyname)); 3613 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]) 3614 capa->max_scan_ssids = 3615 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]); 3616 3617 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]) 3618 capa->max_sched_scan_ssids = 3619 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]); 3620 3621 if (tb[NL80211_ATTR_MAX_MATCH_SETS]) 3622 capa->max_match_sets = 3623 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]); 3624 3625 if (tb[NL80211_ATTR_MAC_ACL_MAX]) 3626 capa->max_acl_mac_addrs = 3627 nla_get_u8(tb[NL80211_ATTR_MAC_ACL_MAX]); 3628 3629 wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]); 3630 wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]); 3631 wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]); 3632 wiphy_info_cipher_suites(info, tb[NL80211_ATTR_CIPHER_SUITES]); 3633 3634 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) { 3635 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based " 3636 "off-channel TX"); 3637 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX; 3638 } 3639 3640 if (tb[NL80211_ATTR_ROAM_SUPPORT]) { 3641 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming"); 3642 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION; 3643 } 3644 3645 wiphy_info_max_roc(capa, 3646 tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]); 3647 3648 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD]) 3649 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD; 3650 3651 wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT], 3652 tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]); 3653 3654 if (tb[NL80211_ATTR_DEVICE_AP_SME]) 3655 info->device_ap_sme = 1; 3656 3657 wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]); 3658 wiphy_info_probe_resp_offload(capa, 3659 tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]); 3660 3661 if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] && 3662 drv->extended_capa == NULL) { 3663 drv->extended_capa = 3664 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3665 if (drv->extended_capa) { 3666 os_memcpy(drv->extended_capa, 3667 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 3668 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3669 drv->extended_capa_len = 3670 nla_len(tb[NL80211_ATTR_EXT_CAPA]); 3671 } 3672 drv->extended_capa_mask = 3673 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3674 if (drv->extended_capa_mask) { 3675 os_memcpy(drv->extended_capa_mask, 3676 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 3677 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3678 } else { 3679 os_free(drv->extended_capa); 3680 drv->extended_capa = NULL; 3681 drv->extended_capa_len = 0; 3682 } 3683 } 3684 3685 if (tb[NL80211_ATTR_VENDOR_DATA]) { 3686 struct nlattr *nl; 3687 int rem; 3688 3689 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_DATA], rem) { 3690 struct nl80211_vendor_cmd_info *vinfo; 3691 if (nla_len(nl) != sizeof(*vinfo)) { 3692 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info"); 3693 continue; 3694 } 3695 vinfo = nla_data(nl); 3696 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor command: vendor_id=0x%x subcmd=%u", 3697 vinfo->vendor_id, vinfo->subcmd); 3698 } 3699 } 3700 3701 if (tb[NL80211_ATTR_VENDOR_EVENTS]) { 3702 struct nlattr *nl; 3703 int rem; 3704 3705 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_EVENTS], rem) { 3706 struct nl80211_vendor_cmd_info *vinfo; 3707 if (nla_len(nl) != sizeof(*vinfo)) { 3708 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info"); 3709 continue; 3710 } 3711 vinfo = nla_data(nl); 3712 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor event: vendor_id=0x%x subcmd=%u", 3713 vinfo->vendor_id, vinfo->subcmd); 3714 } 3715 } 3716 3717 return NL_SKIP; 3718} 3719 3720 3721static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv, 3722 struct wiphy_info_data *info) 3723{ 3724 u32 feat; 3725 struct nl_msg *msg; 3726 3727 os_memset(info, 0, sizeof(*info)); 3728 info->capa = &drv->capa; 3729 info->drv = drv; 3730 3731 msg = nlmsg_alloc(); 3732 if (!msg) 3733 return -1; 3734 3735 feat = get_nl80211_protocol_features(drv); 3736 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 3737 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 3738 else 3739 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 3740 3741 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 3742 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 3743 goto nla_put_failure; 3744 3745 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info)) 3746 return -1; 3747 3748 if (info->auth_supported) 3749 drv->capa.flags |= WPA_DRIVER_FLAGS_SME; 3750 else if (!info->connect_supported) { 3751 wpa_printf(MSG_INFO, "nl80211: Driver does not support " 3752 "authentication/association or connect commands"); 3753 info->error = 1; 3754 } 3755 3756 if (info->p2p_go_supported && info->p2p_client_supported) 3757 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE; 3758 if (info->p2p_concurrent) { 3759 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 3760 "interface (driver advertised support)"); 3761 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 3762 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 3763 } 3764 if (info->num_multichan_concurrent > 1) { 3765 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel " 3766 "concurrent (driver advertised support)"); 3767 drv->capa.num_multichan_concurrent = 3768 info->num_multichan_concurrent; 3769 } 3770 3771 /* default to 5000 since early versions of mac80211 don't set it */ 3772 if (!drv->capa.max_remain_on_chan) 3773 drv->capa.max_remain_on_chan = 5000; 3774 3775 if (info->channel_switch_supported) 3776 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_CSA; 3777 3778 return 0; 3779nla_put_failure: 3780 nlmsg_free(msg); 3781 return -1; 3782} 3783 3784 3785static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv) 3786{ 3787 struct wiphy_info_data info; 3788 if (wpa_driver_nl80211_get_info(drv, &info)) 3789 return -1; 3790 3791 if (info.error) 3792 return -1; 3793 3794 drv->has_capability = 1; 3795 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA | 3796 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK | 3797 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 | 3798 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK; 3799 drv->capa.auth = WPA_DRIVER_AUTH_OPEN | 3800 WPA_DRIVER_AUTH_SHARED | 3801 WPA_DRIVER_AUTH_LEAP; 3802 3803 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES; 3804 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE; 3805 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3806 3807 if (!info.device_ap_sme) { 3808 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS; 3809 3810 /* 3811 * No AP SME is currently assumed to also indicate no AP MLME 3812 * in the driver/firmware. 3813 */ 3814 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME; 3815 } 3816 3817 drv->device_ap_sme = info.device_ap_sme; 3818 drv->poll_command_supported = info.poll_command_supported; 3819 drv->data_tx_status = info.data_tx_status; 3820 if (info.set_qos_map_supported) 3821 drv->capa.flags |= WPA_DRIVER_FLAGS_QOS_MAPPING; 3822 3823 /* 3824 * If poll command and tx status are supported, mac80211 is new enough 3825 * to have everything we need to not need monitor interfaces. 3826 */ 3827 drv->use_monitor = !info.poll_command_supported || !info.data_tx_status; 3828 3829 if (drv->device_ap_sme && drv->use_monitor) { 3830 /* 3831 * Non-mac80211 drivers may not support monitor interface. 3832 * Make sure we do not get stuck with incorrect capability here 3833 * by explicitly testing this. 3834 */ 3835 if (!info.monitor_supported) { 3836 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor " 3837 "with device_ap_sme since no monitor mode " 3838 "support detected"); 3839 drv->use_monitor = 0; 3840 } 3841 } 3842 3843 /* 3844 * If we aren't going to use monitor interfaces, but the 3845 * driver doesn't support data TX status, we won't get TX 3846 * status for EAPOL frames. 3847 */ 3848 if (!drv->use_monitor && !info.data_tx_status) 3849 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3850 3851 return 0; 3852} 3853 3854 3855#ifdef ANDROID 3856static int android_genl_ctrl_resolve(struct nl_handle *handle, 3857 const char *name) 3858{ 3859 /* 3860 * Android ICS has very minimal genl_ctrl_resolve() implementation, so 3861 * need to work around that. 3862 */ 3863 struct nl_cache *cache = NULL; 3864 struct genl_family *nl80211 = NULL; 3865 int id = -1; 3866 3867 if (genl_ctrl_alloc_cache(handle, &cache) < 0) { 3868 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic " 3869 "netlink cache"); 3870 goto fail; 3871 } 3872 3873 nl80211 = genl_ctrl_search_by_name(cache, name); 3874 if (nl80211 == NULL) 3875 goto fail; 3876 3877 id = genl_family_get_id(nl80211); 3878 3879fail: 3880 if (nl80211) 3881 genl_family_put(nl80211); 3882 if (cache) 3883 nl_cache_free(cache); 3884 3885 return id; 3886} 3887#define genl_ctrl_resolve android_genl_ctrl_resolve 3888#endif /* ANDROID */ 3889 3890 3891static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global) 3892{ 3893 int ret; 3894 3895 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3896 if (global->nl_cb == NULL) { 3897 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " 3898 "callbacks"); 3899 return -1; 3900 } 3901 3902 global->nl = nl_create_handle(global->nl_cb, "nl"); 3903 if (global->nl == NULL) 3904 goto err; 3905 3906 global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211"); 3907 if (global->nl80211_id < 0) { 3908 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not " 3909 "found"); 3910 goto err; 3911 } 3912 3913 global->nl_event = nl_create_handle(global->nl_cb, "event"); 3914 if (global->nl_event == NULL) 3915 goto err; 3916 3917 ret = nl_get_multicast_id(global, "nl80211", "scan"); 3918 if (ret >= 0) 3919 ret = nl_socket_add_membership(global->nl_event, ret); 3920 if (ret < 0) { 3921 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 3922 "membership for scan events: %d (%s)", 3923 ret, strerror(-ret)); 3924 goto err; 3925 } 3926 3927 ret = nl_get_multicast_id(global, "nl80211", "mlme"); 3928 if (ret >= 0) 3929 ret = nl_socket_add_membership(global->nl_event, ret); 3930 if (ret < 0) { 3931 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 3932 "membership for mlme events: %d (%s)", 3933 ret, strerror(-ret)); 3934 goto err; 3935 } 3936 3937 ret = nl_get_multicast_id(global, "nl80211", "regulatory"); 3938 if (ret >= 0) 3939 ret = nl_socket_add_membership(global->nl_event, ret); 3940 if (ret < 0) { 3941 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " 3942 "membership for regulatory events: %d (%s)", 3943 ret, strerror(-ret)); 3944 /* Continue without regulatory events */ 3945 } 3946 3947 ret = nl_get_multicast_id(global, "nl80211", "vendor"); 3948 if (ret >= 0) 3949 ret = nl_socket_add_membership(global->nl_event, ret); 3950 if (ret < 0) { 3951 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " 3952 "membership for vendor events: %d (%s)", 3953 ret, strerror(-ret)); 3954 /* Continue without vendor events */ 3955 } 3956 3957 nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3958 no_seq_check, NULL); 3959 nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3960 process_global_event, global); 3961 3962 nl80211_register_eloop_read(&global->nl_event, 3963 wpa_driver_nl80211_event_receive, 3964 global->nl_cb); 3965 3966 return 0; 3967 3968err: 3969 nl_destroy_handles(&global->nl_event); 3970 nl_destroy_handles(&global->nl); 3971 nl_cb_put(global->nl_cb); 3972 global->nl_cb = NULL; 3973 return -1; 3974} 3975 3976 3977static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv) 3978{ 3979 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3980 if (!drv->nl_cb) { 3981 wpa_printf(MSG_ERROR, "nl80211: Failed to alloc cb struct"); 3982 return -1; 3983 } 3984 3985 nl_cb_set(drv->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3986 no_seq_check, NULL); 3987 nl_cb_set(drv->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3988 process_drv_event, drv); 3989 3990 return 0; 3991} 3992 3993 3994static void wpa_driver_nl80211_rfkill_blocked(void *ctx) 3995{ 3996 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked"); 3997 /* 3998 * This may be for any interface; use ifdown event to disable 3999 * interface. 4000 */ 4001} 4002 4003 4004static void wpa_driver_nl80211_rfkill_unblocked(void *ctx) 4005{ 4006 struct wpa_driver_nl80211_data *drv = ctx; 4007 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked"); 4008 if (i802_set_iface_flags(drv->first_bss, 1)) { 4009 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP " 4010 "after rfkill unblock"); 4011 return; 4012 } 4013 /* rtnetlink ifup handler will report interface as enabled */ 4014} 4015 4016 4017static void wpa_driver_nl80211_handle_eapol_tx_status(int sock, 4018 void *eloop_ctx, 4019 void *handle) 4020{ 4021 struct wpa_driver_nl80211_data *drv = eloop_ctx; 4022 u8 data[2048]; 4023 struct msghdr msg; 4024 struct iovec entry; 4025 u8 control[512]; 4026 struct cmsghdr *cmsg; 4027 int res, found_ee = 0, found_wifi = 0, acked = 0; 4028 union wpa_event_data event; 4029 4030 memset(&msg, 0, sizeof(msg)); 4031 msg.msg_iov = &entry; 4032 msg.msg_iovlen = 1; 4033 entry.iov_base = data; 4034 entry.iov_len = sizeof(data); 4035 msg.msg_control = &control; 4036 msg.msg_controllen = sizeof(control); 4037 4038 res = recvmsg(sock, &msg, MSG_ERRQUEUE); 4039 /* if error or not fitting 802.3 header, return */ 4040 if (res < 14) 4041 return; 4042 4043 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) 4044 { 4045 if (cmsg->cmsg_level == SOL_SOCKET && 4046 cmsg->cmsg_type == SCM_WIFI_STATUS) { 4047 int *ack; 4048 4049 found_wifi = 1; 4050 ack = (void *)CMSG_DATA(cmsg); 4051 acked = *ack; 4052 } 4053 4054 if (cmsg->cmsg_level == SOL_PACKET && 4055 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) { 4056 struct sock_extended_err *err = 4057 (struct sock_extended_err *)CMSG_DATA(cmsg); 4058 4059 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS) 4060 found_ee = 1; 4061 } 4062 } 4063 4064 if (!found_ee || !found_wifi) 4065 return; 4066 4067 memset(&event, 0, sizeof(event)); 4068 event.eapol_tx_status.dst = data; 4069 event.eapol_tx_status.data = data + 14; 4070 event.eapol_tx_status.data_len = res - 14; 4071 event.eapol_tx_status.ack = acked; 4072 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event); 4073} 4074 4075 4076static int nl80211_init_bss(struct i802_bss *bss) 4077{ 4078 bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 4079 if (!bss->nl_cb) 4080 return -1; 4081 4082 nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 4083 no_seq_check, NULL); 4084 nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 4085 process_bss_event, bss); 4086 4087 return 0; 4088} 4089 4090 4091static void nl80211_destroy_bss(struct i802_bss *bss) 4092{ 4093 nl_cb_put(bss->nl_cb); 4094 bss->nl_cb = NULL; 4095} 4096 4097 4098static void * wpa_driver_nl80211_drv_init(void *ctx, const char *ifname, 4099 void *global_priv, int hostapd, 4100 const u8 *set_addr) 4101{ 4102 struct wpa_driver_nl80211_data *drv; 4103 struct rfkill_config *rcfg; 4104 struct i802_bss *bss; 4105 4106 if (global_priv == NULL) 4107 return NULL; 4108 drv = os_zalloc(sizeof(*drv)); 4109 if (drv == NULL) 4110 return NULL; 4111 drv->global = global_priv; 4112 drv->ctx = ctx; 4113 drv->hostapd = !!hostapd; 4114 drv->eapol_sock = -1; 4115 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int); 4116 drv->if_indices = drv->default_if_indices; 4117 4118 drv->first_bss = os_zalloc(sizeof(*drv->first_bss)); 4119 if (!drv->first_bss) { 4120 os_free(drv); 4121 return NULL; 4122 } 4123 bss = drv->first_bss; 4124 bss->drv = drv; 4125 bss->ctx = ctx; 4126 4127 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname)); 4128 drv->monitor_ifidx = -1; 4129 drv->monitor_sock = -1; 4130 drv->eapol_tx_sock = -1; 4131 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 4132 4133 if (wpa_driver_nl80211_init_nl(drv)) { 4134 os_free(drv); 4135 return NULL; 4136 } 4137 4138 if (nl80211_init_bss(bss)) 4139 goto failed; 4140 4141 rcfg = os_zalloc(sizeof(*rcfg)); 4142 if (rcfg == NULL) 4143 goto failed; 4144 rcfg->ctx = drv; 4145 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname)); 4146 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked; 4147 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked; 4148 drv->rfkill = rfkill_init(rcfg); 4149 if (drv->rfkill == NULL) { 4150 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available"); 4151 os_free(rcfg); 4152 } 4153 4154 if (linux_iface_up(drv->global->ioctl_sock, ifname) > 0) 4155 drv->start_iface_up = 1; 4156 4157 if (wpa_driver_nl80211_finish_drv_init(drv, set_addr, 1)) 4158 goto failed; 4159 4160 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0); 4161 if (drv->eapol_tx_sock < 0) 4162 goto failed; 4163 4164 if (drv->data_tx_status) { 4165 int enabled = 1; 4166 4167 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS, 4168 &enabled, sizeof(enabled)) < 0) { 4169 wpa_printf(MSG_DEBUG, 4170 "nl80211: wifi status sockopt failed\n"); 4171 drv->data_tx_status = 0; 4172 if (!drv->use_monitor) 4173 drv->capa.flags &= 4174 ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 4175 } else { 4176 eloop_register_read_sock(drv->eapol_tx_sock, 4177 wpa_driver_nl80211_handle_eapol_tx_status, 4178 drv, NULL); 4179 } 4180 } 4181 4182 if (drv->global) { 4183 dl_list_add(&drv->global->interfaces, &drv->list); 4184 drv->in_interface_list = 1; 4185 } 4186 4187 return bss; 4188 4189failed: 4190 wpa_driver_nl80211_deinit(bss); 4191 return NULL; 4192} 4193 4194 4195/** 4196 * wpa_driver_nl80211_init - Initialize nl80211 driver interface 4197 * @ctx: context to be used when calling wpa_supplicant functions, 4198 * e.g., wpa_supplicant_event() 4199 * @ifname: interface name, e.g., wlan0 4200 * @global_priv: private driver global data from global_init() 4201 * Returns: Pointer to private data, %NULL on failure 4202 */ 4203static void * wpa_driver_nl80211_init(void *ctx, const char *ifname, 4204 void *global_priv) 4205{ 4206 return wpa_driver_nl80211_drv_init(ctx, ifname, global_priv, 0, NULL); 4207} 4208 4209 4210static int nl80211_register_frame(struct i802_bss *bss, 4211 struct nl_handle *nl_handle, 4212 u16 type, const u8 *match, size_t match_len) 4213{ 4214 struct wpa_driver_nl80211_data *drv = bss->drv; 4215 struct nl_msg *msg; 4216 int ret = -1; 4217 char buf[30]; 4218 4219 msg = nlmsg_alloc(); 4220 if (!msg) 4221 return -1; 4222 4223 buf[0] = '\0'; 4224 wpa_snprintf_hex(buf, sizeof(buf), match, match_len); 4225 wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x nl_handle=%p match=%s", 4226 type, nl_handle, buf); 4227 4228 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION); 4229 4230 if (nl80211_set_iface_id(msg, bss) < 0) 4231 goto nla_put_failure; 4232 4233 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type); 4234 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match); 4235 4236 ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL); 4237 msg = NULL; 4238 if (ret) { 4239 wpa_printf(MSG_DEBUG, "nl80211: Register frame command " 4240 "failed (type=%u): ret=%d (%s)", 4241 type, ret, strerror(-ret)); 4242 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", 4243 match, match_len); 4244 goto nla_put_failure; 4245 } 4246 ret = 0; 4247nla_put_failure: 4248 nlmsg_free(msg); 4249 return ret; 4250} 4251 4252 4253static int nl80211_alloc_mgmt_handle(struct i802_bss *bss) 4254{ 4255 struct wpa_driver_nl80211_data *drv = bss->drv; 4256 4257 if (bss->nl_mgmt) { 4258 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting " 4259 "already on! (nl_mgmt=%p)", bss->nl_mgmt); 4260 return -1; 4261 } 4262 4263 bss->nl_mgmt = nl_create_handle(drv->nl_cb, "mgmt"); 4264 if (bss->nl_mgmt == NULL) 4265 return -1; 4266 4267 return 0; 4268} 4269 4270 4271static void nl80211_mgmt_handle_register_eloop(struct i802_bss *bss) 4272{ 4273 nl80211_register_eloop_read(&bss->nl_mgmt, 4274 wpa_driver_nl80211_event_receive, 4275 bss->nl_cb); 4276} 4277 4278 4279static int nl80211_register_action_frame(struct i802_bss *bss, 4280 const u8 *match, size_t match_len) 4281{ 4282 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4); 4283 return nl80211_register_frame(bss, bss->nl_mgmt, 4284 type, match, match_len); 4285} 4286 4287 4288static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss) 4289{ 4290 struct wpa_driver_nl80211_data *drv = bss->drv; 4291 int ret = 0; 4292 4293 if (nl80211_alloc_mgmt_handle(bss)) 4294 return -1; 4295 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP " 4296 "handle %p", bss->nl_mgmt); 4297 4298 if (drv->nlmode == NL80211_IFTYPE_ADHOC) { 4299 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_AUTH << 4); 4300 4301 /* register for any AUTH message */ 4302 nl80211_register_frame(bss, bss->nl_mgmt, type, NULL, 0); 4303 } 4304 4305#ifdef CONFIG_INTERWORKING 4306 /* QoS Map Configure */ 4307 if (nl80211_register_action_frame(bss, (u8 *) "\x01\x04", 2) < 0) 4308 ret = -1; 4309#endif /* CONFIG_INTERWORKING */ 4310#if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING) 4311 /* GAS Initial Request */ 4312 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0) 4313 ret = -1; 4314 /* GAS Initial Response */ 4315 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0) 4316 ret = -1; 4317 /* GAS Comeback Request */ 4318 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0) 4319 ret = -1; 4320 /* GAS Comeback Response */ 4321 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0) 4322 ret = -1; 4323 /* Protected GAS Initial Request */ 4324 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0a", 2) < 0) 4325 ret = -1; 4326 /* Protected GAS Initial Response */ 4327 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0b", 2) < 0) 4328 ret = -1; 4329 /* Protected GAS Comeback Request */ 4330 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0c", 2) < 0) 4331 ret = -1; 4332 /* Protected GAS Comeback Response */ 4333 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0d", 2) < 0) 4334 ret = -1; 4335#endif /* CONFIG_P2P || CONFIG_INTERWORKING */ 4336#ifdef CONFIG_P2P 4337 /* P2P Public Action */ 4338 if (nl80211_register_action_frame(bss, 4339 (u8 *) "\x04\x09\x50\x6f\x9a\x09", 4340 6) < 0) 4341 ret = -1; 4342 /* P2P Action */ 4343 if (nl80211_register_action_frame(bss, 4344 (u8 *) "\x7f\x50\x6f\x9a\x09", 4345 5) < 0) 4346 ret = -1; 4347#endif /* CONFIG_P2P */ 4348#ifdef CONFIG_IEEE80211W 4349 /* SA Query Response */ 4350 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0) 4351 ret = -1; 4352#endif /* CONFIG_IEEE80211W */ 4353#ifdef CONFIG_TDLS 4354 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) { 4355 /* TDLS Discovery Response */ 4356 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) < 4357 0) 4358 ret = -1; 4359 } 4360#endif /* CONFIG_TDLS */ 4361 4362 /* FT Action frames */ 4363 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0) 4364 ret = -1; 4365 else 4366 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT | 4367 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK; 4368 4369 /* WNM - BSS Transition Management Request */ 4370 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0) 4371 ret = -1; 4372 /* WNM-Sleep Mode Response */ 4373 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x11", 2) < 0) 4374 ret = -1; 4375 4376 nl80211_mgmt_handle_register_eloop(bss); 4377 4378 return ret; 4379} 4380 4381 4382static int nl80211_register_spurious_class3(struct i802_bss *bss) 4383{ 4384 struct wpa_driver_nl80211_data *drv = bss->drv; 4385 struct nl_msg *msg; 4386 int ret = -1; 4387 4388 msg = nlmsg_alloc(); 4389 if (!msg) 4390 return -1; 4391 4392 nl80211_cmd(drv, msg, 0, NL80211_CMD_UNEXPECTED_FRAME); 4393 4394 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 4395 4396 ret = send_and_recv(drv->global, bss->nl_mgmt, msg, NULL, NULL); 4397 msg = NULL; 4398 if (ret) { 4399 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 " 4400 "failed: ret=%d (%s)", 4401 ret, strerror(-ret)); 4402 goto nla_put_failure; 4403 } 4404 ret = 0; 4405nla_put_failure: 4406 nlmsg_free(msg); 4407 return ret; 4408} 4409 4410 4411static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss) 4412{ 4413 static const int stypes[] = { 4414 WLAN_FC_STYPE_AUTH, 4415 WLAN_FC_STYPE_ASSOC_REQ, 4416 WLAN_FC_STYPE_REASSOC_REQ, 4417 WLAN_FC_STYPE_DISASSOC, 4418 WLAN_FC_STYPE_DEAUTH, 4419 WLAN_FC_STYPE_ACTION, 4420 WLAN_FC_STYPE_PROBE_REQ, 4421/* Beacon doesn't work as mac80211 doesn't currently allow 4422 * it, but it wouldn't really be the right thing anyway as 4423 * it isn't per interface ... maybe just dump the scan 4424 * results periodically for OLBC? 4425 */ 4426// WLAN_FC_STYPE_BEACON, 4427 }; 4428 unsigned int i; 4429 4430 if (nl80211_alloc_mgmt_handle(bss)) 4431 return -1; 4432 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 4433 "handle %p", bss->nl_mgmt); 4434 4435 for (i = 0; i < ARRAY_SIZE(stypes); i++) { 4436 if (nl80211_register_frame(bss, bss->nl_mgmt, 4437 (WLAN_FC_TYPE_MGMT << 2) | 4438 (stypes[i] << 4), 4439 NULL, 0) < 0) { 4440 goto out_err; 4441 } 4442 } 4443 4444 if (nl80211_register_spurious_class3(bss)) 4445 goto out_err; 4446 4447 if (nl80211_get_wiphy_data_ap(bss) == NULL) 4448 goto out_err; 4449 4450 nl80211_mgmt_handle_register_eloop(bss); 4451 return 0; 4452 4453out_err: 4454 nl_destroy_handles(&bss->nl_mgmt); 4455 return -1; 4456} 4457 4458 4459static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss) 4460{ 4461 if (nl80211_alloc_mgmt_handle(bss)) 4462 return -1; 4463 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 4464 "handle %p (device SME)", bss->nl_mgmt); 4465 4466 if (nl80211_register_frame(bss, bss->nl_mgmt, 4467 (WLAN_FC_TYPE_MGMT << 2) | 4468 (WLAN_FC_STYPE_ACTION << 4), 4469 NULL, 0) < 0) 4470 goto out_err; 4471 4472 nl80211_mgmt_handle_register_eloop(bss); 4473 return 0; 4474 4475out_err: 4476 nl_destroy_handles(&bss->nl_mgmt); 4477 return -1; 4478} 4479 4480 4481static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason) 4482{ 4483 if (bss->nl_mgmt == NULL) 4484 return; 4485 wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p " 4486 "(%s)", bss->nl_mgmt, reason); 4487 nl80211_destroy_eloop_handle(&bss->nl_mgmt); 4488 4489 nl80211_put_wiphy_data_ap(bss); 4490} 4491 4492 4493static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx) 4494{ 4495 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL); 4496} 4497 4498 4499static void nl80211_del_p2pdev(struct i802_bss *bss) 4500{ 4501 struct wpa_driver_nl80211_data *drv = bss->drv; 4502 struct nl_msg *msg; 4503 int ret; 4504 4505 msg = nlmsg_alloc(); 4506 if (!msg) 4507 return; 4508 4509 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 4510 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 4511 4512 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4513 msg = NULL; 4514 4515 wpa_printf(MSG_DEBUG, "nl80211: Delete P2P Device %s (0x%llx): %s", 4516 bss->ifname, (long long unsigned int) bss->wdev_id, 4517 strerror(-ret)); 4518 4519nla_put_failure: 4520 nlmsg_free(msg); 4521} 4522 4523 4524static int nl80211_set_p2pdev(struct i802_bss *bss, int start) 4525{ 4526 struct wpa_driver_nl80211_data *drv = bss->drv; 4527 struct nl_msg *msg; 4528 int ret = -1; 4529 4530 msg = nlmsg_alloc(); 4531 if (!msg) 4532 return -1; 4533 4534 if (start) 4535 nl80211_cmd(drv, msg, 0, NL80211_CMD_START_P2P_DEVICE); 4536 else 4537 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_P2P_DEVICE); 4538 4539 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 4540 4541 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4542 msg = NULL; 4543 4544 wpa_printf(MSG_DEBUG, "nl80211: %s P2P Device %s (0x%llx): %s", 4545 start ? "Start" : "Stop", 4546 bss->ifname, (long long unsigned int) bss->wdev_id, 4547 strerror(-ret)); 4548 4549nla_put_failure: 4550 nlmsg_free(msg); 4551 return ret; 4552} 4553 4554 4555static int i802_set_iface_flags(struct i802_bss *bss, int up) 4556{ 4557 enum nl80211_iftype nlmode; 4558 4559 nlmode = nl80211_get_ifmode(bss); 4560 if (nlmode != NL80211_IFTYPE_P2P_DEVICE) { 4561 return linux_set_iface_flags(bss->drv->global->ioctl_sock, 4562 bss->ifname, up); 4563 } 4564 4565 /* P2P Device has start/stop which is equivalent */ 4566 return nl80211_set_p2pdev(bss, up); 4567} 4568 4569 4570static int 4571wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv, 4572 const u8 *set_addr, int first) 4573{ 4574 struct i802_bss *bss = drv->first_bss; 4575 int send_rfkill_event = 0; 4576 enum nl80211_iftype nlmode; 4577 4578 drv->ifindex = if_nametoindex(bss->ifname); 4579 bss->ifindex = drv->ifindex; 4580 bss->wdev_id = drv->global->if_add_wdevid; 4581 bss->wdev_id_set = drv->global->if_add_wdevid_set; 4582 4583 bss->if_dynamic = drv->ifindex == drv->global->if_add_ifindex; 4584 bss->if_dynamic = bss->if_dynamic || drv->global->if_add_wdevid_set; 4585 drv->global->if_add_wdevid_set = 0; 4586 4587 if (wpa_driver_nl80211_capa(drv)) 4588 return -1; 4589 4590 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s", 4591 bss->ifname, drv->phyname); 4592 4593 if (set_addr && 4594 (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0) || 4595 linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 4596 set_addr))) 4597 return -1; 4598 4599 if (first && nl80211_get_ifmode(bss) == NL80211_IFTYPE_AP) 4600 drv->start_mode_ap = 1; 4601 4602 if (drv->hostapd) 4603 nlmode = NL80211_IFTYPE_AP; 4604 else if (bss->if_dynamic) 4605 nlmode = nl80211_get_ifmode(bss); 4606 else 4607 nlmode = NL80211_IFTYPE_STATION; 4608 4609 if (wpa_driver_nl80211_set_mode(bss, nlmode) < 0) { 4610 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver mode"); 4611 return -1; 4612 } 4613 4614 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { 4615 int ret = nl80211_set_p2pdev(bss, 1); 4616 if (ret < 0) 4617 wpa_printf(MSG_ERROR, "nl80211: Could not start P2P device"); 4618 nl80211_get_macaddr(bss); 4619 return ret; 4620 } 4621 4622 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) { 4623 if (rfkill_is_blocked(drv->rfkill)) { 4624 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable " 4625 "interface '%s' due to rfkill", 4626 bss->ifname); 4627 drv->if_disabled = 1; 4628 send_rfkill_event = 1; 4629 } else { 4630 wpa_printf(MSG_ERROR, "nl80211: Could not set " 4631 "interface '%s' UP", bss->ifname); 4632 return -1; 4633 } 4634 } 4635 4636 if (!drv->hostapd) 4637 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 4638 1, IF_OPER_DORMANT); 4639 4640 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 4641 bss->addr)) 4642 return -1; 4643 4644 if (send_rfkill_event) { 4645 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill, 4646 drv, drv->ctx); 4647 } 4648 4649 return 0; 4650} 4651 4652 4653static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv) 4654{ 4655 struct nl_msg *msg; 4656 4657 msg = nlmsg_alloc(); 4658 if (!msg) 4659 return -ENOMEM; 4660 4661 wpa_printf(MSG_DEBUG, "nl80211: Remove beacon (ifindex=%d)", 4662 drv->ifindex); 4663 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON); 4664 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4665 4666 return send_and_recv_msgs(drv, msg, NULL, NULL); 4667 nla_put_failure: 4668 nlmsg_free(msg); 4669 return -ENOBUFS; 4670} 4671 4672 4673/** 4674 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface 4675 * @bss: Pointer to private nl80211 data from wpa_driver_nl80211_init() 4676 * 4677 * Shut down driver interface and processing of driver events. Free 4678 * private data buffer if one was allocated in wpa_driver_nl80211_init(). 4679 */ 4680static void wpa_driver_nl80211_deinit(struct i802_bss *bss) 4681{ 4682 struct wpa_driver_nl80211_data *drv = bss->drv; 4683 4684 bss->in_deinit = 1; 4685 if (drv->data_tx_status) 4686 eloop_unregister_read_sock(drv->eapol_tx_sock); 4687 if (drv->eapol_tx_sock >= 0) 4688 close(drv->eapol_tx_sock); 4689 4690 if (bss->nl_preq) 4691 wpa_driver_nl80211_probe_req_report(bss, 0); 4692 if (bss->added_if_into_bridge) { 4693 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 4694 bss->ifname) < 0) 4695 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 4696 "interface %s from bridge %s: %s", 4697 bss->ifname, bss->brname, strerror(errno)); 4698 } 4699 if (bss->added_bridge) { 4700 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 4701 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 4702 "bridge %s: %s", 4703 bss->brname, strerror(errno)); 4704 } 4705 4706 nl80211_remove_monitor_interface(drv); 4707 4708 if (is_ap_interface(drv->nlmode)) 4709 wpa_driver_nl80211_del_beacon(drv); 4710 4711 if (drv->eapol_sock >= 0) { 4712 eloop_unregister_read_sock(drv->eapol_sock); 4713 close(drv->eapol_sock); 4714 } 4715 4716 if (drv->if_indices != drv->default_if_indices) 4717 os_free(drv->if_indices); 4718 4719 if (drv->disabled_11b_rates) 4720 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 4721 4722 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0, 4723 IF_OPER_UP); 4724 rfkill_deinit(drv->rfkill); 4725 4726 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 4727 4728 if (!drv->start_iface_up) 4729 (void) i802_set_iface_flags(bss, 0); 4730 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) { 4731 if (!drv->hostapd || !drv->start_mode_ap) 4732 wpa_driver_nl80211_set_mode(bss, 4733 NL80211_IFTYPE_STATION); 4734 nl80211_mgmt_unsubscribe(bss, "deinit"); 4735 } else { 4736 nl80211_mgmt_unsubscribe(bss, "deinit"); 4737 nl80211_del_p2pdev(bss); 4738 } 4739 nl_cb_put(drv->nl_cb); 4740 4741 nl80211_destroy_bss(drv->first_bss); 4742 4743 os_free(drv->filter_ssids); 4744 4745 os_free(drv->auth_ie); 4746 4747 if (drv->in_interface_list) 4748 dl_list_del(&drv->list); 4749 4750 os_free(drv->extended_capa); 4751 os_free(drv->extended_capa_mask); 4752 os_free(drv->first_bss); 4753 os_free(drv); 4754} 4755 4756 4757/** 4758 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion 4759 * @eloop_ctx: Driver private data 4760 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init() 4761 * 4762 * This function can be used as registered timeout when starting a scan to 4763 * generate a scan completed event if the driver does not report this. 4764 */ 4765static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx) 4766{ 4767 struct wpa_driver_nl80211_data *drv = eloop_ctx; 4768 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) { 4769 wpa_driver_nl80211_set_mode(drv->first_bss, 4770 drv->ap_scan_as_station); 4771 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 4772 } 4773 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results"); 4774 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL); 4775} 4776 4777 4778static struct nl_msg * 4779nl80211_scan_common(struct wpa_driver_nl80211_data *drv, u8 cmd, 4780 struct wpa_driver_scan_params *params, u64 *wdev_id) 4781{ 4782 struct nl_msg *msg; 4783 size_t i; 4784 4785 msg = nlmsg_alloc(); 4786 if (!msg) 4787 return NULL; 4788 4789 nl80211_cmd(drv, msg, 0, cmd); 4790 4791 if (!wdev_id) 4792 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4793 else 4794 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, *wdev_id); 4795 4796 if (params->num_ssids) { 4797 struct nlattr *ssids; 4798 4799 ssids = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); 4800 if (ssids == NULL) 4801 goto fail; 4802 for (i = 0; i < params->num_ssids; i++) { 4803 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID", 4804 params->ssids[i].ssid, 4805 params->ssids[i].ssid_len); 4806 if (nla_put(msg, i + 1, params->ssids[i].ssid_len, 4807 params->ssids[i].ssid) < 0) 4808 goto fail; 4809 } 4810 nla_nest_end(msg, ssids); 4811 } 4812 4813 if (params->extra_ies) { 4814 wpa_hexdump(MSG_MSGDUMP, "nl80211: Scan extra IEs", 4815 params->extra_ies, params->extra_ies_len); 4816 if (nla_put(msg, NL80211_ATTR_IE, params->extra_ies_len, 4817 params->extra_ies) < 0) 4818 goto fail; 4819 } 4820 4821 if (params->freqs) { 4822 struct nlattr *freqs; 4823 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); 4824 if (freqs == NULL) 4825 goto fail; 4826 for (i = 0; params->freqs[i]; i++) { 4827 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u " 4828 "MHz", params->freqs[i]); 4829 if (nla_put_u32(msg, i + 1, params->freqs[i]) < 0) 4830 goto fail; 4831 } 4832 nla_nest_end(msg, freqs); 4833 } 4834 4835 os_free(drv->filter_ssids); 4836 drv->filter_ssids = params->filter_ssids; 4837 params->filter_ssids = NULL; 4838 drv->num_filter_ssids = params->num_filter_ssids; 4839 4840 if (params->only_new_results) { 4841 wpa_printf(MSG_DEBUG, "nl80211: Add NL80211_SCAN_FLAG_FLUSH"); 4842 NLA_PUT_U32(msg, NL80211_ATTR_SCAN_FLAGS, 4843 NL80211_SCAN_FLAG_FLUSH); 4844 } 4845 4846 return msg; 4847 4848fail: 4849nla_put_failure: 4850 nlmsg_free(msg); 4851 return NULL; 4852} 4853 4854 4855/** 4856 * wpa_driver_nl80211_scan - Request the driver to initiate scan 4857 * @bss: Pointer to private driver data from wpa_driver_nl80211_init() 4858 * @params: Scan parameters 4859 * Returns: 0 on success, -1 on failure 4860 */ 4861static int wpa_driver_nl80211_scan(struct i802_bss *bss, 4862 struct wpa_driver_scan_params *params) 4863{ 4864 struct wpa_driver_nl80211_data *drv = bss->drv; 4865 int ret = -1, timeout; 4866 struct nl_msg *msg = NULL; 4867 4868 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: scan request"); 4869 drv->scan_for_auth = 0; 4870 4871 msg = nl80211_scan_common(drv, NL80211_CMD_TRIGGER_SCAN, params, 4872 bss->wdev_id_set ? &bss->wdev_id : NULL); 4873 if (!msg) 4874 return -1; 4875 4876 if (params->p2p_probe) { 4877 struct nlattr *rates; 4878 4879 wpa_printf(MSG_DEBUG, "nl80211: P2P probe - mask SuppRates"); 4880 4881 rates = nla_nest_start(msg, NL80211_ATTR_SCAN_SUPP_RATES); 4882 if (rates == NULL) 4883 goto nla_put_failure; 4884 4885 /* 4886 * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates 4887 * by masking out everything else apart from the OFDM rates 6, 4888 * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz 4889 * rates are left enabled. 4890 */ 4891 NLA_PUT(msg, NL80211_BAND_2GHZ, 8, 4892 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 4893 nla_nest_end(msg, rates); 4894 4895 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 4896 } 4897 4898 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4899 msg = NULL; 4900 if (ret) { 4901 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d " 4902 "(%s)", ret, strerror(-ret)); 4903 if (drv->hostapd && is_ap_interface(drv->nlmode)) { 4904 /* 4905 * mac80211 does not allow scan requests in AP mode, so 4906 * try to do this in station mode. 4907 */ 4908 if (wpa_driver_nl80211_set_mode( 4909 bss, NL80211_IFTYPE_STATION)) 4910 goto nla_put_failure; 4911 4912 if (wpa_driver_nl80211_scan(bss, params)) { 4913 wpa_driver_nl80211_set_mode(bss, drv->nlmode); 4914 goto nla_put_failure; 4915 } 4916 4917 /* Restore AP mode when processing scan results */ 4918 drv->ap_scan_as_station = drv->nlmode; 4919 ret = 0; 4920 } else 4921 goto nla_put_failure; 4922 } 4923 4924 drv->scan_state = SCAN_REQUESTED; 4925 /* Not all drivers generate "scan completed" wireless event, so try to 4926 * read results after a timeout. */ 4927 timeout = 10; 4928 if (drv->scan_complete_events) { 4929 /* 4930 * The driver seems to deliver events to notify when scan is 4931 * complete, so use longer timeout to avoid race conditions 4932 * with scanning and following association request. 4933 */ 4934 timeout = 30; 4935 } 4936 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d " 4937 "seconds", ret, timeout); 4938 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 4939 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout, 4940 drv, drv->ctx); 4941 4942nla_put_failure: 4943 nlmsg_free(msg); 4944 return ret; 4945} 4946 4947 4948/** 4949 * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan 4950 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 4951 * @params: Scan parameters 4952 * @interval: Interval between scan cycles in milliseconds 4953 * Returns: 0 on success, -1 on failure or if not supported 4954 */ 4955static int wpa_driver_nl80211_sched_scan(void *priv, 4956 struct wpa_driver_scan_params *params, 4957 u32 interval) 4958{ 4959 struct i802_bss *bss = priv; 4960 struct wpa_driver_nl80211_data *drv = bss->drv; 4961 int ret = -1; 4962 struct nl_msg *msg; 4963 size_t i; 4964 4965 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: sched_scan request"); 4966 4967#ifdef ANDROID 4968 if (!drv->capa.sched_scan_supported) 4969 return android_pno_start(bss, params); 4970#endif /* ANDROID */ 4971 4972 msg = nl80211_scan_common(drv, NL80211_CMD_START_SCHED_SCAN, params, 4973 bss->wdev_id_set ? &bss->wdev_id : NULL); 4974 if (!msg) 4975 goto nla_put_failure; 4976 4977 NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval); 4978 4979 if ((drv->num_filter_ssids && 4980 (int) drv->num_filter_ssids <= drv->capa.max_match_sets) || 4981 params->filter_rssi) { 4982 struct nlattr *match_sets; 4983 match_sets = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH); 4984 if (match_sets == NULL) 4985 goto nla_put_failure; 4986 4987 for (i = 0; i < drv->num_filter_ssids; i++) { 4988 struct nlattr *match_set_ssid; 4989 wpa_hexdump_ascii(MSG_MSGDUMP, 4990 "nl80211: Sched scan filter SSID", 4991 drv->filter_ssids[i].ssid, 4992 drv->filter_ssids[i].ssid_len); 4993 4994 match_set_ssid = nla_nest_start(msg, i + 1); 4995 if (match_set_ssid == NULL) 4996 goto nla_put_failure; 4997 NLA_PUT(msg, NL80211_ATTR_SCHED_SCAN_MATCH_SSID, 4998 drv->filter_ssids[i].ssid_len, 4999 drv->filter_ssids[i].ssid); 5000 if (params->filter_rssi) 5001 NLA_PUT_U32(msg, 5002 NL80211_SCHED_SCAN_MATCH_ATTR_RSSI, 5003 params->filter_rssi); 5004 5005 nla_nest_end(msg, match_set_ssid); 5006 } 5007 5008 /* 5009 * Due to backward compatibility code, newer kernels treat this 5010 * matchset (with only an RSSI filter) as the default for all 5011 * other matchsets, unless it's the only one, in which case the 5012 * matchset will actually allow all SSIDs above the RSSI. 5013 */ 5014 if (params->filter_rssi) { 5015 struct nlattr *match_set_rssi; 5016 match_set_rssi = nla_nest_start(msg, 0); 5017 if (match_set_rssi == NULL) 5018 goto nla_put_failure; 5019 NLA_PUT_U32(msg, NL80211_SCHED_SCAN_MATCH_ATTR_RSSI, 5020 params->filter_rssi); 5021 wpa_printf(MSG_MSGDUMP, 5022 "nl80211: Sched scan RSSI filter %d dBm", 5023 params->filter_rssi); 5024 nla_nest_end(msg, match_set_rssi); 5025 } 5026 5027 nla_nest_end(msg, match_sets); 5028 } 5029 5030 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5031 5032 /* TODO: if we get an error here, we should fall back to normal scan */ 5033 5034 msg = NULL; 5035 if (ret) { 5036 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: " 5037 "ret=%d (%s)", ret, strerror(-ret)); 5038 goto nla_put_failure; 5039 } 5040 5041 wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - " 5042 "scan interval %d msec", ret, interval); 5043 5044nla_put_failure: 5045 nlmsg_free(msg); 5046 return ret; 5047} 5048 5049 5050/** 5051 * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan 5052 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 5053 * Returns: 0 on success, -1 on failure or if not supported 5054 */ 5055static int wpa_driver_nl80211_stop_sched_scan(void *priv) 5056{ 5057 struct i802_bss *bss = priv; 5058 struct wpa_driver_nl80211_data *drv = bss->drv; 5059 int ret = 0; 5060 struct nl_msg *msg; 5061 5062#ifdef ANDROID 5063 if (!drv->capa.sched_scan_supported) 5064 return android_pno_stop(bss); 5065#endif /* ANDROID */ 5066 5067 msg = nlmsg_alloc(); 5068 if (!msg) 5069 return -1; 5070 5071 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN); 5072 5073 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5074 5075 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5076 msg = NULL; 5077 if (ret) { 5078 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: " 5079 "ret=%d (%s)", ret, strerror(-ret)); 5080 goto nla_put_failure; 5081 } 5082 5083 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret); 5084 5085nla_put_failure: 5086 nlmsg_free(msg); 5087 return ret; 5088} 5089 5090 5091static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie) 5092{ 5093 const u8 *end, *pos; 5094 5095 if (ies == NULL) 5096 return NULL; 5097 5098 pos = ies; 5099 end = ies + ies_len; 5100 5101 while (pos + 1 < end) { 5102 if (pos + 2 + pos[1] > end) 5103 break; 5104 if (pos[0] == ie) 5105 return pos; 5106 pos += 2 + pos[1]; 5107 } 5108 5109 return NULL; 5110} 5111 5112 5113static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv, 5114 const u8 *ie, size_t ie_len) 5115{ 5116 const u8 *ssid; 5117 size_t i; 5118 5119 if (drv->filter_ssids == NULL) 5120 return 0; 5121 5122 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID); 5123 if (ssid == NULL) 5124 return 1; 5125 5126 for (i = 0; i < drv->num_filter_ssids; i++) { 5127 if (ssid[1] == drv->filter_ssids[i].ssid_len && 5128 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) == 5129 0) 5130 return 0; 5131 } 5132 5133 return 1; 5134} 5135 5136 5137static int bss_info_handler(struct nl_msg *msg, void *arg) 5138{ 5139 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 5140 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 5141 struct nlattr *bss[NL80211_BSS_MAX + 1]; 5142 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = { 5143 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC }, 5144 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 }, 5145 [NL80211_BSS_TSF] = { .type = NLA_U64 }, 5146 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 }, 5147 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 }, 5148 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC }, 5149 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 }, 5150 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 }, 5151 [NL80211_BSS_STATUS] = { .type = NLA_U32 }, 5152 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 }, 5153 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC }, 5154 }; 5155 struct nl80211_bss_info_arg *_arg = arg; 5156 struct wpa_scan_results *res = _arg->res; 5157 struct wpa_scan_res **tmp; 5158 struct wpa_scan_res *r; 5159 const u8 *ie, *beacon_ie; 5160 size_t ie_len, beacon_ie_len; 5161 u8 *pos; 5162 size_t i; 5163 5164 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 5165 genlmsg_attrlen(gnlh, 0), NULL); 5166 if (!tb[NL80211_ATTR_BSS]) 5167 return NL_SKIP; 5168 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS], 5169 bss_policy)) 5170 return NL_SKIP; 5171 if (bss[NL80211_BSS_STATUS]) { 5172 enum nl80211_bss_status status; 5173 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 5174 if (status == NL80211_BSS_STATUS_ASSOCIATED && 5175 bss[NL80211_BSS_FREQUENCY]) { 5176 _arg->assoc_freq = 5177 nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 5178 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz", 5179 _arg->assoc_freq); 5180 } 5181 if (status == NL80211_BSS_STATUS_ASSOCIATED && 5182 bss[NL80211_BSS_BSSID]) { 5183 os_memcpy(_arg->assoc_bssid, 5184 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN); 5185 wpa_printf(MSG_DEBUG, "nl80211: Associated with " 5186 MACSTR, MAC2STR(_arg->assoc_bssid)); 5187 } 5188 } 5189 if (!res) 5190 return NL_SKIP; 5191 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) { 5192 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 5193 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 5194 } else { 5195 ie = NULL; 5196 ie_len = 0; 5197 } 5198 if (bss[NL80211_BSS_BEACON_IES]) { 5199 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]); 5200 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]); 5201 } else { 5202 beacon_ie = NULL; 5203 beacon_ie_len = 0; 5204 } 5205 5206 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie, 5207 ie ? ie_len : beacon_ie_len)) 5208 return NL_SKIP; 5209 5210 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len); 5211 if (r == NULL) 5212 return NL_SKIP; 5213 if (bss[NL80211_BSS_BSSID]) 5214 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]), 5215 ETH_ALEN); 5216 if (bss[NL80211_BSS_FREQUENCY]) 5217 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 5218 if (bss[NL80211_BSS_BEACON_INTERVAL]) 5219 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]); 5220 if (bss[NL80211_BSS_CAPABILITY]) 5221 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]); 5222 r->flags |= WPA_SCAN_NOISE_INVALID; 5223 if (bss[NL80211_BSS_SIGNAL_MBM]) { 5224 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]); 5225 r->level /= 100; /* mBm to dBm */ 5226 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID; 5227 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) { 5228 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]); 5229 r->flags |= WPA_SCAN_QUAL_INVALID; 5230 } else 5231 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID; 5232 if (bss[NL80211_BSS_TSF]) 5233 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]); 5234 if (bss[NL80211_BSS_SEEN_MS_AGO]) 5235 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]); 5236 r->ie_len = ie_len; 5237 pos = (u8 *) (r + 1); 5238 if (ie) { 5239 os_memcpy(pos, ie, ie_len); 5240 pos += ie_len; 5241 } 5242 r->beacon_ie_len = beacon_ie_len; 5243 if (beacon_ie) 5244 os_memcpy(pos, beacon_ie, beacon_ie_len); 5245 5246 if (bss[NL80211_BSS_STATUS]) { 5247 enum nl80211_bss_status status; 5248 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 5249 switch (status) { 5250 case NL80211_BSS_STATUS_AUTHENTICATED: 5251 r->flags |= WPA_SCAN_AUTHENTICATED; 5252 break; 5253 case NL80211_BSS_STATUS_ASSOCIATED: 5254 r->flags |= WPA_SCAN_ASSOCIATED; 5255 break; 5256 default: 5257 break; 5258 } 5259 } 5260 5261 /* 5262 * cfg80211 maintains separate BSS table entries for APs if the same 5263 * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does 5264 * not use frequency as a separate key in the BSS table, so filter out 5265 * duplicated entries. Prefer associated BSS entry in such a case in 5266 * order to get the correct frequency into the BSS table. Similarly, 5267 * prefer newer entries over older. 5268 */ 5269 for (i = 0; i < res->num; i++) { 5270 const u8 *s1, *s2; 5271 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0) 5272 continue; 5273 5274 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1), 5275 res->res[i]->ie_len, WLAN_EID_SSID); 5276 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID); 5277 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] || 5278 os_memcmp(s1, s2, 2 + s1[1]) != 0) 5279 continue; 5280 5281 /* Same BSSID,SSID was already included in scan results */ 5282 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result " 5283 "for " MACSTR, MAC2STR(r->bssid)); 5284 5285 if (((r->flags & WPA_SCAN_ASSOCIATED) && 5286 !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) || 5287 r->age < res->res[i]->age) { 5288 os_free(res->res[i]); 5289 res->res[i] = r; 5290 } else 5291 os_free(r); 5292 return NL_SKIP; 5293 } 5294 5295 tmp = os_realloc_array(res->res, res->num + 1, 5296 sizeof(struct wpa_scan_res *)); 5297 if (tmp == NULL) { 5298 os_free(r); 5299 return NL_SKIP; 5300 } 5301 tmp[res->num++] = r; 5302 res->res = tmp; 5303 5304 return NL_SKIP; 5305} 5306 5307 5308static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv, 5309 const u8 *addr) 5310{ 5311 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 5312 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state " 5313 "mismatch (" MACSTR ")", MAC2STR(addr)); 5314 wpa_driver_nl80211_mlme(drv, addr, 5315 NL80211_CMD_DEAUTHENTICATE, 5316 WLAN_REASON_PREV_AUTH_NOT_VALID, 1); 5317 } 5318} 5319 5320 5321static void wpa_driver_nl80211_check_bss_status( 5322 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res) 5323{ 5324 size_t i; 5325 5326 for (i = 0; i < res->num; i++) { 5327 struct wpa_scan_res *r = res->res[i]; 5328 if (r->flags & WPA_SCAN_AUTHENTICATED) { 5329 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 5330 "indicates BSS status with " MACSTR 5331 " as authenticated", 5332 MAC2STR(r->bssid)); 5333 if (is_sta_interface(drv->nlmode) && 5334 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 && 5335 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) != 5336 0) { 5337 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID" 5338 " in local state (auth=" MACSTR 5339 " assoc=" MACSTR ")", 5340 MAC2STR(drv->auth_bssid), 5341 MAC2STR(drv->bssid)); 5342 clear_state_mismatch(drv, r->bssid); 5343 } 5344 } 5345 5346 if (r->flags & WPA_SCAN_ASSOCIATED) { 5347 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 5348 "indicate BSS status with " MACSTR 5349 " as associated", 5350 MAC2STR(r->bssid)); 5351 if (is_sta_interface(drv->nlmode) && 5352 !drv->associated) { 5353 wpa_printf(MSG_DEBUG, "nl80211: Local state " 5354 "(not associated) does not match " 5355 "with BSS state"); 5356 clear_state_mismatch(drv, r->bssid); 5357 } else if (is_sta_interface(drv->nlmode) && 5358 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) != 5359 0) { 5360 wpa_printf(MSG_DEBUG, "nl80211: Local state " 5361 "(associated with " MACSTR ") does " 5362 "not match with BSS state", 5363 MAC2STR(drv->bssid)); 5364 clear_state_mismatch(drv, r->bssid); 5365 clear_state_mismatch(drv, drv->bssid); 5366 } 5367 } 5368 } 5369} 5370 5371 5372static struct wpa_scan_results * 5373nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv) 5374{ 5375 struct nl_msg *msg; 5376 struct wpa_scan_results *res; 5377 int ret; 5378 struct nl80211_bss_info_arg arg; 5379 5380 res = os_zalloc(sizeof(*res)); 5381 if (res == NULL) 5382 return NULL; 5383 msg = nlmsg_alloc(); 5384 if (!msg) 5385 goto nla_put_failure; 5386 5387 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 5388 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 5389 goto nla_put_failure; 5390 5391 arg.drv = drv; 5392 arg.res = res; 5393 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 5394 msg = NULL; 5395 if (ret == 0) { 5396 wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu " 5397 "BSSes)", (unsigned long) res->num); 5398 nl80211_get_noise_for_scan_results(drv, res); 5399 return res; 5400 } 5401 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 5402 "(%s)", ret, strerror(-ret)); 5403nla_put_failure: 5404 nlmsg_free(msg); 5405 wpa_scan_results_free(res); 5406 return NULL; 5407} 5408 5409 5410/** 5411 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results 5412 * @priv: Pointer to private wext data from wpa_driver_nl80211_init() 5413 * Returns: Scan results on success, -1 on failure 5414 */ 5415static struct wpa_scan_results * 5416wpa_driver_nl80211_get_scan_results(void *priv) 5417{ 5418 struct i802_bss *bss = priv; 5419 struct wpa_driver_nl80211_data *drv = bss->drv; 5420 struct wpa_scan_results *res; 5421 5422 res = nl80211_get_scan_results(drv); 5423 if (res) 5424 wpa_driver_nl80211_check_bss_status(drv, res); 5425 return res; 5426} 5427 5428 5429static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv) 5430{ 5431 struct wpa_scan_results *res; 5432 size_t i; 5433 5434 res = nl80211_get_scan_results(drv); 5435 if (res == NULL) { 5436 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results"); 5437 return; 5438 } 5439 5440 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump"); 5441 for (i = 0; i < res->num; i++) { 5442 struct wpa_scan_res *r = res->res[i]; 5443 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s", 5444 (int) i, (int) res->num, MAC2STR(r->bssid), 5445 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "", 5446 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : ""); 5447 } 5448 5449 wpa_scan_results_free(res); 5450} 5451 5452 5453static u32 wpa_alg_to_cipher_suite(enum wpa_alg alg, size_t key_len) 5454{ 5455 switch (alg) { 5456 case WPA_ALG_WEP: 5457 if (key_len == 5) 5458 return WLAN_CIPHER_SUITE_WEP40; 5459 return WLAN_CIPHER_SUITE_WEP104; 5460 case WPA_ALG_TKIP: 5461 return WLAN_CIPHER_SUITE_TKIP; 5462 case WPA_ALG_CCMP: 5463 return WLAN_CIPHER_SUITE_CCMP; 5464 case WPA_ALG_GCMP: 5465 return WLAN_CIPHER_SUITE_GCMP; 5466 case WPA_ALG_CCMP_256: 5467 return WLAN_CIPHER_SUITE_CCMP_256; 5468 case WPA_ALG_GCMP_256: 5469 return WLAN_CIPHER_SUITE_GCMP_256; 5470 case WPA_ALG_IGTK: 5471 return WLAN_CIPHER_SUITE_AES_CMAC; 5472 case WPA_ALG_BIP_GMAC_128: 5473 return WLAN_CIPHER_SUITE_BIP_GMAC_128; 5474 case WPA_ALG_BIP_GMAC_256: 5475 return WLAN_CIPHER_SUITE_BIP_GMAC_256; 5476 case WPA_ALG_BIP_CMAC_256: 5477 return WLAN_CIPHER_SUITE_BIP_CMAC_256; 5478 case WPA_ALG_SMS4: 5479 return WLAN_CIPHER_SUITE_SMS4; 5480 case WPA_ALG_KRK: 5481 return WLAN_CIPHER_SUITE_KRK; 5482 case WPA_ALG_NONE: 5483 case WPA_ALG_PMK: 5484 wpa_printf(MSG_ERROR, "nl80211: Unexpected encryption algorithm %d", 5485 alg); 5486 return 0; 5487 } 5488 5489 wpa_printf(MSG_ERROR, "nl80211: Unsupported encryption algorithm %d", 5490 alg); 5491 return 0; 5492} 5493 5494 5495static u32 wpa_cipher_to_cipher_suite(unsigned int cipher) 5496{ 5497 switch (cipher) { 5498 case WPA_CIPHER_CCMP_256: 5499 return WLAN_CIPHER_SUITE_CCMP_256; 5500 case WPA_CIPHER_GCMP_256: 5501 return WLAN_CIPHER_SUITE_GCMP_256; 5502 case WPA_CIPHER_CCMP: 5503 return WLAN_CIPHER_SUITE_CCMP; 5504 case WPA_CIPHER_GCMP: 5505 return WLAN_CIPHER_SUITE_GCMP; 5506 case WPA_CIPHER_TKIP: 5507 return WLAN_CIPHER_SUITE_TKIP; 5508 case WPA_CIPHER_WEP104: 5509 return WLAN_CIPHER_SUITE_WEP104; 5510 case WPA_CIPHER_WEP40: 5511 return WLAN_CIPHER_SUITE_WEP40; 5512 } 5513 5514 return 0; 5515} 5516 5517 5518static int wpa_cipher_to_cipher_suites(unsigned int ciphers, u32 suites[], 5519 int max_suites) 5520{ 5521 int num_suites = 0; 5522 5523 if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP_256) 5524 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP_256; 5525 if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP_256) 5526 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP_256; 5527 if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP) 5528 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP; 5529 if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP) 5530 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP; 5531 if (num_suites < max_suites && ciphers & WPA_CIPHER_TKIP) 5532 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP; 5533 if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP104) 5534 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104; 5535 if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP40) 5536 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40; 5537 5538 return num_suites; 5539} 5540 5541 5542static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss, 5543 enum wpa_alg alg, const u8 *addr, 5544 int key_idx, int set_tx, 5545 const u8 *seq, size_t seq_len, 5546 const u8 *key, size_t key_len) 5547{ 5548 struct wpa_driver_nl80211_data *drv = bss->drv; 5549 int ifindex; 5550 struct nl_msg *msg; 5551 int ret; 5552 int tdls = 0; 5553 5554 /* Ignore for P2P Device */ 5555 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 5556 return 0; 5557 5558 ifindex = if_nametoindex(ifname); 5559 wpa_printf(MSG_DEBUG, "%s: ifindex=%d (%s) alg=%d addr=%p key_idx=%d " 5560 "set_tx=%d seq_len=%lu key_len=%lu", 5561 __func__, ifindex, ifname, alg, addr, key_idx, set_tx, 5562 (unsigned long) seq_len, (unsigned long) key_len); 5563#ifdef CONFIG_TDLS 5564 if (key_idx == -1) { 5565 key_idx = 0; 5566 tdls = 1; 5567 } 5568#endif /* CONFIG_TDLS */ 5569 5570 msg = nlmsg_alloc(); 5571 if (!msg) 5572 return -ENOMEM; 5573 5574 if (alg == WPA_ALG_NONE) { 5575 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY); 5576 } else { 5577 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY); 5578 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key); 5579 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5580 wpa_alg_to_cipher_suite(alg, key_len)); 5581 } 5582 5583 if (seq && seq_len) 5584 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq); 5585 5586 if (addr && !is_broadcast_ether_addr(addr)) { 5587 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr)); 5588 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 5589 5590 if (alg != WPA_ALG_WEP && key_idx && !set_tx) { 5591 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK"); 5592 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, 5593 NL80211_KEYTYPE_GROUP); 5594 } 5595 } else if (addr && is_broadcast_ether_addr(addr)) { 5596 struct nlattr *types; 5597 5598 wpa_printf(MSG_DEBUG, " broadcast key"); 5599 5600 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5601 if (!types) 5602 goto nla_put_failure; 5603 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 5604 nla_nest_end(msg, types); 5605 } 5606 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 5607 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5608 5609 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5610 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE) 5611 ret = 0; 5612 if (ret) 5613 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)", 5614 ret, strerror(-ret)); 5615 5616 /* 5617 * If we failed or don't need to set the default TX key (below), 5618 * we're done here. 5619 */ 5620 if (ret || !set_tx || alg == WPA_ALG_NONE || tdls) 5621 return ret; 5622 if (is_ap_interface(drv->nlmode) && addr && 5623 !is_broadcast_ether_addr(addr)) 5624 return ret; 5625 5626 msg = nlmsg_alloc(); 5627 if (!msg) 5628 return -ENOMEM; 5629 5630 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY); 5631 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 5632 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5633 if (alg == WPA_ALG_IGTK) 5634 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT); 5635 else 5636 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT); 5637 if (addr && is_broadcast_ether_addr(addr)) { 5638 struct nlattr *types; 5639 5640 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5641 if (!types) 5642 goto nla_put_failure; 5643 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 5644 nla_nest_end(msg, types); 5645 } else if (addr) { 5646 struct nlattr *types; 5647 5648 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5649 if (!types) 5650 goto nla_put_failure; 5651 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_UNICAST); 5652 nla_nest_end(msg, types); 5653 } 5654 5655 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5656 if (ret == -ENOENT) 5657 ret = 0; 5658 if (ret) 5659 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; " 5660 "err=%d %s)", ret, strerror(-ret)); 5661 return ret; 5662 5663nla_put_failure: 5664 nlmsg_free(msg); 5665 return -ENOBUFS; 5666} 5667 5668 5669static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg, 5670 int key_idx, int defkey, 5671 const u8 *seq, size_t seq_len, 5672 const u8 *key, size_t key_len) 5673{ 5674 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY); 5675 if (!key_attr) 5676 return -1; 5677 5678 if (defkey && alg == WPA_ALG_IGTK) 5679 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT); 5680 else if (defkey) 5681 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 5682 5683 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx); 5684 5685 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5686 wpa_alg_to_cipher_suite(alg, key_len)); 5687 5688 if (seq && seq_len) 5689 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq); 5690 5691 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key); 5692 5693 nla_nest_end(msg, key_attr); 5694 5695 return 0; 5696 nla_put_failure: 5697 return -1; 5698} 5699 5700 5701static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params, 5702 struct nl_msg *msg) 5703{ 5704 int i, privacy = 0; 5705 struct nlattr *nl_keys, *nl_key; 5706 5707 for (i = 0; i < 4; i++) { 5708 if (!params->wep_key[i]) 5709 continue; 5710 privacy = 1; 5711 break; 5712 } 5713 if (params->wps == WPS_MODE_PRIVACY) 5714 privacy = 1; 5715 if (params->pairwise_suite && 5716 params->pairwise_suite != WPA_CIPHER_NONE) 5717 privacy = 1; 5718 5719 if (!privacy) 5720 return 0; 5721 5722 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 5723 5724 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS); 5725 if (!nl_keys) 5726 goto nla_put_failure; 5727 5728 for (i = 0; i < 4; i++) { 5729 if (!params->wep_key[i]) 5730 continue; 5731 5732 nl_key = nla_nest_start(msg, i); 5733 if (!nl_key) 5734 goto nla_put_failure; 5735 5736 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i], 5737 params->wep_key[i]); 5738 if (params->wep_key_len[i] == 5) 5739 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5740 WLAN_CIPHER_SUITE_WEP40); 5741 else 5742 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5743 WLAN_CIPHER_SUITE_WEP104); 5744 5745 NLA_PUT_U8(msg, NL80211_KEY_IDX, i); 5746 5747 if (i == params->wep_tx_keyidx) 5748 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 5749 5750 nla_nest_end(msg, nl_key); 5751 } 5752 nla_nest_end(msg, nl_keys); 5753 5754 return 0; 5755 5756nla_put_failure: 5757 return -ENOBUFS; 5758} 5759 5760 5761static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 5762 const u8 *addr, int cmd, u16 reason_code, 5763 int local_state_change) 5764{ 5765 int ret = -1; 5766 struct nl_msg *msg; 5767 5768 msg = nlmsg_alloc(); 5769 if (!msg) 5770 return -1; 5771 5772 nl80211_cmd(drv, msg, 0, cmd); 5773 5774 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5775 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code); 5776 if (addr) 5777 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 5778 if (local_state_change) 5779 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 5780 5781 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5782 msg = NULL; 5783 if (ret) { 5784 wpa_dbg(drv->ctx, MSG_DEBUG, 5785 "nl80211: MLME command failed: reason=%u ret=%d (%s)", 5786 reason_code, ret, strerror(-ret)); 5787 goto nla_put_failure; 5788 } 5789 ret = 0; 5790 5791nla_put_failure: 5792 nlmsg_free(msg); 5793 return ret; 5794} 5795 5796 5797static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv, 5798 int reason_code) 5799{ 5800 int ret; 5801 5802 wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code); 5803 nl80211_mark_disconnected(drv); 5804 /* Disconnect command doesn't need BSSID - it uses cached value */ 5805 ret = wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT, 5806 reason_code, 0); 5807 /* 5808 * For locally generated disconnect, supplicant already generates a 5809 * DEAUTH event, so ignore the event from NL80211. 5810 */ 5811 drv->ignore_next_local_disconnect = ret == 0; 5812 5813 return ret; 5814} 5815 5816 5817static int wpa_driver_nl80211_deauthenticate(struct i802_bss *bss, 5818 const u8 *addr, int reason_code) 5819{ 5820 struct wpa_driver_nl80211_data *drv = bss->drv; 5821 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) 5822 return wpa_driver_nl80211_disconnect(drv, reason_code); 5823 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)", 5824 __func__, MAC2STR(addr), reason_code); 5825 nl80211_mark_disconnected(drv); 5826 if (drv->nlmode == NL80211_IFTYPE_ADHOC) 5827 return nl80211_leave_ibss(drv); 5828 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE, 5829 reason_code, 0); 5830} 5831 5832 5833static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv, 5834 struct wpa_driver_auth_params *params) 5835{ 5836 int i; 5837 5838 drv->auth_freq = params->freq; 5839 drv->auth_alg = params->auth_alg; 5840 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx; 5841 drv->auth_local_state_change = params->local_state_change; 5842 drv->auth_p2p = params->p2p; 5843 5844 if (params->bssid) 5845 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN); 5846 else 5847 os_memset(drv->auth_bssid_, 0, ETH_ALEN); 5848 5849 if (params->ssid) { 5850 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len); 5851 drv->auth_ssid_len = params->ssid_len; 5852 } else 5853 drv->auth_ssid_len = 0; 5854 5855 5856 os_free(drv->auth_ie); 5857 drv->auth_ie = NULL; 5858 drv->auth_ie_len = 0; 5859 if (params->ie) { 5860 drv->auth_ie = os_malloc(params->ie_len); 5861 if (drv->auth_ie) { 5862 os_memcpy(drv->auth_ie, params->ie, params->ie_len); 5863 drv->auth_ie_len = params->ie_len; 5864 } 5865 } 5866 5867 for (i = 0; i < 4; i++) { 5868 if (params->wep_key[i] && params->wep_key_len[i] && 5869 params->wep_key_len[i] <= 16) { 5870 os_memcpy(drv->auth_wep_key[i], params->wep_key[i], 5871 params->wep_key_len[i]); 5872 drv->auth_wep_key_len[i] = params->wep_key_len[i]; 5873 } else 5874 drv->auth_wep_key_len[i] = 0; 5875 } 5876} 5877 5878 5879static int wpa_driver_nl80211_authenticate( 5880 struct i802_bss *bss, struct wpa_driver_auth_params *params) 5881{ 5882 struct wpa_driver_nl80211_data *drv = bss->drv; 5883 int ret = -1, i; 5884 struct nl_msg *msg; 5885 enum nl80211_auth_type type; 5886 enum nl80211_iftype nlmode; 5887 int count = 0; 5888 int is_retry; 5889 5890 is_retry = drv->retry_auth; 5891 drv->retry_auth = 0; 5892 5893 nl80211_mark_disconnected(drv); 5894 os_memset(drv->auth_bssid, 0, ETH_ALEN); 5895 if (params->bssid) 5896 os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN); 5897 else 5898 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 5899 /* FIX: IBSS mode */ 5900 nlmode = params->p2p ? 5901 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 5902 if (drv->nlmode != nlmode && 5903 wpa_driver_nl80211_set_mode(bss, nlmode) < 0) 5904 return -1; 5905 5906retry: 5907 msg = nlmsg_alloc(); 5908 if (!msg) 5909 return -1; 5910 5911 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)", 5912 drv->ifindex); 5913 5914 nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE); 5915 5916 for (i = 0; i < 4; i++) { 5917 if (!params->wep_key[i]) 5918 continue; 5919 wpa_driver_nl80211_set_key(bss->ifname, bss, WPA_ALG_WEP, 5920 NULL, i, 5921 i == params->wep_tx_keyidx, NULL, 0, 5922 params->wep_key[i], 5923 params->wep_key_len[i]); 5924 if (params->wep_tx_keyidx != i) 5925 continue; 5926 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0, 5927 params->wep_key[i], params->wep_key_len[i])) { 5928 nlmsg_free(msg); 5929 return -1; 5930 } 5931 } 5932 5933 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5934 if (params->bssid) { 5935 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 5936 MAC2STR(params->bssid)); 5937 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 5938 } 5939 if (params->freq) { 5940 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 5941 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 5942 } 5943 if (params->ssid) { 5944 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 5945 params->ssid, params->ssid_len); 5946 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 5947 params->ssid); 5948 } 5949 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len); 5950 if (params->ie) 5951 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie); 5952 if (params->sae_data) { 5953 wpa_hexdump(MSG_DEBUG, " * SAE data", params->sae_data, 5954 params->sae_data_len); 5955 NLA_PUT(msg, NL80211_ATTR_SAE_DATA, params->sae_data_len, 5956 params->sae_data); 5957 } 5958 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 5959 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 5960 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 5961 type = NL80211_AUTHTYPE_SHARED_KEY; 5962 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 5963 type = NL80211_AUTHTYPE_NETWORK_EAP; 5964 else if (params->auth_alg & WPA_AUTH_ALG_FT) 5965 type = NL80211_AUTHTYPE_FT; 5966 else if (params->auth_alg & WPA_AUTH_ALG_SAE) 5967 type = NL80211_AUTHTYPE_SAE; 5968 else 5969 goto nla_put_failure; 5970 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 5971 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 5972 if (params->local_state_change) { 5973 wpa_printf(MSG_DEBUG, " * Local state change only"); 5974 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 5975 } 5976 5977 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5978 msg = NULL; 5979 if (ret) { 5980 wpa_dbg(drv->ctx, MSG_DEBUG, 5981 "nl80211: MLME command failed (auth): ret=%d (%s)", 5982 ret, strerror(-ret)); 5983 count++; 5984 if (ret == -EALREADY && count == 1 && params->bssid && 5985 !params->local_state_change) { 5986 /* 5987 * mac80211 does not currently accept new 5988 * authentication if we are already authenticated. As a 5989 * workaround, force deauthentication and try again. 5990 */ 5991 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication " 5992 "after forced deauthentication"); 5993 wpa_driver_nl80211_deauthenticate( 5994 bss, params->bssid, 5995 WLAN_REASON_PREV_AUTH_NOT_VALID); 5996 nlmsg_free(msg); 5997 goto retry; 5998 } 5999 6000 if (ret == -ENOENT && params->freq && !is_retry) { 6001 /* 6002 * cfg80211 has likely expired the BSS entry even 6003 * though it was previously available in our internal 6004 * BSS table. To recover quickly, start a single 6005 * channel scan on the specified channel. 6006 */ 6007 struct wpa_driver_scan_params scan; 6008 int freqs[2]; 6009 6010 os_memset(&scan, 0, sizeof(scan)); 6011 scan.num_ssids = 1; 6012 if (params->ssid) { 6013 scan.ssids[0].ssid = params->ssid; 6014 scan.ssids[0].ssid_len = params->ssid_len; 6015 } 6016 freqs[0] = params->freq; 6017 freqs[1] = 0; 6018 scan.freqs = freqs; 6019 wpa_printf(MSG_DEBUG, "nl80211: Trigger single " 6020 "channel scan to refresh cfg80211 BSS " 6021 "entry"); 6022 ret = wpa_driver_nl80211_scan(bss, &scan); 6023 if (ret == 0) { 6024 nl80211_copy_auth_params(drv, params); 6025 drv->scan_for_auth = 1; 6026 } 6027 } else if (is_retry) { 6028 /* 6029 * Need to indicate this with an event since the return 6030 * value from the retry is not delivered to core code. 6031 */ 6032 union wpa_event_data event; 6033 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry " 6034 "failed"); 6035 os_memset(&event, 0, sizeof(event)); 6036 os_memcpy(event.timeout_event.addr, drv->auth_bssid_, 6037 ETH_ALEN); 6038 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT, 6039 &event); 6040 } 6041 6042 goto nla_put_failure; 6043 } 6044 ret = 0; 6045 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send " 6046 "successfully"); 6047 6048nla_put_failure: 6049 nlmsg_free(msg); 6050 return ret; 6051} 6052 6053 6054static int wpa_driver_nl80211_authenticate_retry( 6055 struct wpa_driver_nl80211_data *drv) 6056{ 6057 struct wpa_driver_auth_params params; 6058 struct i802_bss *bss = drv->first_bss; 6059 int i; 6060 6061 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again"); 6062 6063 os_memset(¶ms, 0, sizeof(params)); 6064 params.freq = drv->auth_freq; 6065 params.auth_alg = drv->auth_alg; 6066 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx; 6067 params.local_state_change = drv->auth_local_state_change; 6068 params.p2p = drv->auth_p2p; 6069 6070 if (!is_zero_ether_addr(drv->auth_bssid_)) 6071 params.bssid = drv->auth_bssid_; 6072 6073 if (drv->auth_ssid_len) { 6074 params.ssid = drv->auth_ssid; 6075 params.ssid_len = drv->auth_ssid_len; 6076 } 6077 6078 params.ie = drv->auth_ie; 6079 params.ie_len = drv->auth_ie_len; 6080 6081 for (i = 0; i < 4; i++) { 6082 if (drv->auth_wep_key_len[i]) { 6083 params.wep_key[i] = drv->auth_wep_key[i]; 6084 params.wep_key_len[i] = drv->auth_wep_key_len[i]; 6085 } 6086 } 6087 6088 drv->retry_auth = 1; 6089 return wpa_driver_nl80211_authenticate(bss, ¶ms); 6090} 6091 6092 6093struct phy_info_arg { 6094 u16 *num_modes; 6095 struct hostapd_hw_modes *modes; 6096 int last_mode, last_chan_idx; 6097}; 6098 6099static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa, 6100 struct nlattr *ampdu_factor, 6101 struct nlattr *ampdu_density, 6102 struct nlattr *mcs_set) 6103{ 6104 if (capa) 6105 mode->ht_capab = nla_get_u16(capa); 6106 6107 if (ampdu_factor) 6108 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03; 6109 6110 if (ampdu_density) 6111 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2; 6112 6113 if (mcs_set && nla_len(mcs_set) >= 16) { 6114 u8 *mcs; 6115 mcs = nla_data(mcs_set); 6116 os_memcpy(mode->mcs_set, mcs, 16); 6117 } 6118} 6119 6120 6121static void phy_info_vht_capa(struct hostapd_hw_modes *mode, 6122 struct nlattr *capa, 6123 struct nlattr *mcs_set) 6124{ 6125 if (capa) 6126 mode->vht_capab = nla_get_u32(capa); 6127 6128 if (mcs_set && nla_len(mcs_set) >= 8) { 6129 u8 *mcs; 6130 mcs = nla_data(mcs_set); 6131 os_memcpy(mode->vht_mcs_set, mcs, 8); 6132 } 6133} 6134 6135 6136static void phy_info_freq(struct hostapd_hw_modes *mode, 6137 struct hostapd_channel_data *chan, 6138 struct nlattr *tb_freq[]) 6139{ 6140 u8 channel; 6141 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]); 6142 chan->flag = 0; 6143 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES) 6144 chan->chan = channel; 6145 6146 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) 6147 chan->flag |= HOSTAPD_CHAN_DISABLED; 6148 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IR]) 6149 chan->flag |= HOSTAPD_CHAN_PASSIVE_SCAN | HOSTAPD_CHAN_NO_IBSS; 6150 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR]) 6151 chan->flag |= HOSTAPD_CHAN_RADAR; 6152 6153 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) { 6154 enum nl80211_dfs_state state = 6155 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]); 6156 6157 switch (state) { 6158 case NL80211_DFS_USABLE: 6159 chan->flag |= HOSTAPD_CHAN_DFS_USABLE; 6160 break; 6161 case NL80211_DFS_AVAILABLE: 6162 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE; 6163 break; 6164 case NL80211_DFS_UNAVAILABLE: 6165 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE; 6166 break; 6167 } 6168 } 6169} 6170 6171 6172static int phy_info_freqs(struct phy_info_arg *phy_info, 6173 struct hostapd_hw_modes *mode, struct nlattr *tb) 6174{ 6175 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 6176 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 }, 6177 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG }, 6178 [NL80211_FREQUENCY_ATTR_NO_IR] = { .type = NLA_FLAG }, 6179 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG }, 6180 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 }, 6181 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 }, 6182 }; 6183 int new_channels = 0; 6184 struct hostapd_channel_data *channel; 6185 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1]; 6186 struct nlattr *nl_freq; 6187 int rem_freq, idx; 6188 6189 if (tb == NULL) 6190 return NL_OK; 6191 6192 nla_for_each_nested(nl_freq, tb, rem_freq) { 6193 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 6194 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 6195 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 6196 continue; 6197 new_channels++; 6198 } 6199 6200 channel = os_realloc_array(mode->channels, 6201 mode->num_channels + new_channels, 6202 sizeof(struct hostapd_channel_data)); 6203 if (!channel) 6204 return NL_SKIP; 6205 6206 mode->channels = channel; 6207 mode->num_channels += new_channels; 6208 6209 idx = phy_info->last_chan_idx; 6210 6211 nla_for_each_nested(nl_freq, tb, rem_freq) { 6212 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 6213 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 6214 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 6215 continue; 6216 phy_info_freq(mode, &mode->channels[idx], tb_freq); 6217 idx++; 6218 } 6219 phy_info->last_chan_idx = idx; 6220 6221 return NL_OK; 6222} 6223 6224 6225static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb) 6226{ 6227 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = { 6228 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 }, 6229 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = 6230 { .type = NLA_FLAG }, 6231 }; 6232 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1]; 6233 struct nlattr *nl_rate; 6234 int rem_rate, idx; 6235 6236 if (tb == NULL) 6237 return NL_OK; 6238 6239 nla_for_each_nested(nl_rate, tb, rem_rate) { 6240 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 6241 nla_data(nl_rate), nla_len(nl_rate), 6242 rate_policy); 6243 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 6244 continue; 6245 mode->num_rates++; 6246 } 6247 6248 mode->rates = os_calloc(mode->num_rates, sizeof(int)); 6249 if (!mode->rates) 6250 return NL_SKIP; 6251 6252 idx = 0; 6253 6254 nla_for_each_nested(nl_rate, tb, rem_rate) { 6255 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 6256 nla_data(nl_rate), nla_len(nl_rate), 6257 rate_policy); 6258 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 6259 continue; 6260 mode->rates[idx] = nla_get_u32( 6261 tb_rate[NL80211_BITRATE_ATTR_RATE]); 6262 idx++; 6263 } 6264 6265 return NL_OK; 6266} 6267 6268 6269static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band) 6270{ 6271 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1]; 6272 struct hostapd_hw_modes *mode; 6273 int ret; 6274 6275 if (phy_info->last_mode != nl_band->nla_type) { 6276 mode = os_realloc_array(phy_info->modes, 6277 *phy_info->num_modes + 1, 6278 sizeof(*mode)); 6279 if (!mode) 6280 return NL_SKIP; 6281 phy_info->modes = mode; 6282 6283 mode = &phy_info->modes[*(phy_info->num_modes)]; 6284 os_memset(mode, 0, sizeof(*mode)); 6285 mode->mode = NUM_HOSTAPD_MODES; 6286 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN | 6287 HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN; 6288 6289 /* 6290 * Unsupported VHT MCS stream is defined as value 3, so the VHT 6291 * MCS RX/TX map must be initialized with 0xffff to mark all 8 6292 * possible streams as unsupported. This will be overridden if 6293 * driver advertises VHT support. 6294 */ 6295 mode->vht_mcs_set[0] = 0xff; 6296 mode->vht_mcs_set[1] = 0xff; 6297 mode->vht_mcs_set[4] = 0xff; 6298 mode->vht_mcs_set[5] = 0xff; 6299 6300 *(phy_info->num_modes) += 1; 6301 phy_info->last_mode = nl_band->nla_type; 6302 phy_info->last_chan_idx = 0; 6303 } else 6304 mode = &phy_info->modes[*(phy_info->num_modes) - 1]; 6305 6306 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band), 6307 nla_len(nl_band), NULL); 6308 6309 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA], 6310 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR], 6311 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY], 6312 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]); 6313 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA], 6314 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]); 6315 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]); 6316 if (ret != NL_OK) 6317 return ret; 6318 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]); 6319 if (ret != NL_OK) 6320 return ret; 6321 6322 return NL_OK; 6323} 6324 6325 6326static int phy_info_handler(struct nl_msg *msg, void *arg) 6327{ 6328 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 6329 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 6330 struct phy_info_arg *phy_info = arg; 6331 struct nlattr *nl_band; 6332 int rem_band; 6333 6334 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 6335 genlmsg_attrlen(gnlh, 0), NULL); 6336 6337 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS]) 6338 return NL_SKIP; 6339 6340 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) 6341 { 6342 int res = phy_info_band(phy_info, nl_band); 6343 if (res != NL_OK) 6344 return res; 6345 } 6346 6347 return NL_SKIP; 6348} 6349 6350 6351static struct hostapd_hw_modes * 6352wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes, 6353 u16 *num_modes) 6354{ 6355 u16 m; 6356 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode; 6357 int i, mode11g_idx = -1; 6358 6359 /* heuristic to set up modes */ 6360 for (m = 0; m < *num_modes; m++) { 6361 if (!modes[m].num_channels) 6362 continue; 6363 if (modes[m].channels[0].freq < 4000) { 6364 modes[m].mode = HOSTAPD_MODE_IEEE80211B; 6365 for (i = 0; i < modes[m].num_rates; i++) { 6366 if (modes[m].rates[i] > 200) { 6367 modes[m].mode = HOSTAPD_MODE_IEEE80211G; 6368 break; 6369 } 6370 } 6371 } else if (modes[m].channels[0].freq > 50000) 6372 modes[m].mode = HOSTAPD_MODE_IEEE80211AD; 6373 else 6374 modes[m].mode = HOSTAPD_MODE_IEEE80211A; 6375 } 6376 6377 /* If only 802.11g mode is included, use it to construct matching 6378 * 802.11b mode data. */ 6379 6380 for (m = 0; m < *num_modes; m++) { 6381 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B) 6382 return modes; /* 802.11b already included */ 6383 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G) 6384 mode11g_idx = m; 6385 } 6386 6387 if (mode11g_idx < 0) 6388 return modes; /* 2.4 GHz band not supported at all */ 6389 6390 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes)); 6391 if (nmodes == NULL) 6392 return modes; /* Could not add 802.11b mode */ 6393 6394 mode = &nmodes[*num_modes]; 6395 os_memset(mode, 0, sizeof(*mode)); 6396 (*num_modes)++; 6397 modes = nmodes; 6398 6399 mode->mode = HOSTAPD_MODE_IEEE80211B; 6400 6401 mode11g = &modes[mode11g_idx]; 6402 mode->num_channels = mode11g->num_channels; 6403 mode->channels = os_malloc(mode11g->num_channels * 6404 sizeof(struct hostapd_channel_data)); 6405 if (mode->channels == NULL) { 6406 (*num_modes)--; 6407 return modes; /* Could not add 802.11b mode */ 6408 } 6409 os_memcpy(mode->channels, mode11g->channels, 6410 mode11g->num_channels * sizeof(struct hostapd_channel_data)); 6411 6412 mode->num_rates = 0; 6413 mode->rates = os_malloc(4 * sizeof(int)); 6414 if (mode->rates == NULL) { 6415 os_free(mode->channels); 6416 (*num_modes)--; 6417 return modes; /* Could not add 802.11b mode */ 6418 } 6419 6420 for (i = 0; i < mode11g->num_rates; i++) { 6421 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 && 6422 mode11g->rates[i] != 55 && mode11g->rates[i] != 110) 6423 continue; 6424 mode->rates[mode->num_rates] = mode11g->rates[i]; 6425 mode->num_rates++; 6426 if (mode->num_rates == 4) 6427 break; 6428 } 6429 6430 if (mode->num_rates == 0) { 6431 os_free(mode->channels); 6432 os_free(mode->rates); 6433 (*num_modes)--; 6434 return modes; /* No 802.11b rates */ 6435 } 6436 6437 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g " 6438 "information"); 6439 6440 return modes; 6441} 6442 6443 6444static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start, 6445 int end) 6446{ 6447 int c; 6448 6449 for (c = 0; c < mode->num_channels; c++) { 6450 struct hostapd_channel_data *chan = &mode->channels[c]; 6451 if (chan->freq - 10 >= start && chan->freq + 10 <= end) 6452 chan->flag |= HOSTAPD_CHAN_HT40; 6453 } 6454} 6455 6456 6457static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start, 6458 int end) 6459{ 6460 int c; 6461 6462 for (c = 0; c < mode->num_channels; c++) { 6463 struct hostapd_channel_data *chan = &mode->channels[c]; 6464 if (!(chan->flag & HOSTAPD_CHAN_HT40)) 6465 continue; 6466 if (chan->freq - 30 >= start && chan->freq - 10 <= end) 6467 chan->flag |= HOSTAPD_CHAN_HT40MINUS; 6468 if (chan->freq + 10 >= start && chan->freq + 30 <= end) 6469 chan->flag |= HOSTAPD_CHAN_HT40PLUS; 6470 } 6471} 6472 6473 6474static void nl80211_reg_rule_max_eirp(u32 start, u32 end, u32 max_eirp, 6475 struct phy_info_arg *results) 6476{ 6477 u16 m; 6478 6479 for (m = 0; m < *results->num_modes; m++) { 6480 int c; 6481 struct hostapd_hw_modes *mode = &results->modes[m]; 6482 6483 for (c = 0; c < mode->num_channels; c++) { 6484 struct hostapd_channel_data *chan = &mode->channels[c]; 6485 if ((u32) chan->freq - 10 >= start && 6486 (u32) chan->freq + 10 <= end) 6487 chan->max_tx_power = max_eirp; 6488 } 6489 } 6490} 6491 6492 6493static void nl80211_reg_rule_ht40(u32 start, u32 end, 6494 struct phy_info_arg *results) 6495{ 6496 u16 m; 6497 6498 for (m = 0; m < *results->num_modes; m++) { 6499 if (!(results->modes[m].ht_capab & 6500 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6501 continue; 6502 nl80211_set_ht40_mode(&results->modes[m], start, end); 6503 } 6504} 6505 6506 6507static void nl80211_reg_rule_sec(struct nlattr *tb[], 6508 struct phy_info_arg *results) 6509{ 6510 u32 start, end, max_bw; 6511 u16 m; 6512 6513 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6514 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 6515 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 6516 return; 6517 6518 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6519 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6520 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6521 6522 if (max_bw < 20) 6523 return; 6524 6525 for (m = 0; m < *results->num_modes; m++) { 6526 if (!(results->modes[m].ht_capab & 6527 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6528 continue; 6529 nl80211_set_ht40_mode_sec(&results->modes[m], start, end); 6530 } 6531} 6532 6533 6534static void nl80211_set_vht_mode(struct hostapd_hw_modes *mode, int start, 6535 int end) 6536{ 6537 int c; 6538 6539 for (c = 0; c < mode->num_channels; c++) { 6540 struct hostapd_channel_data *chan = &mode->channels[c]; 6541 if (chan->freq - 10 >= start && chan->freq + 70 <= end) 6542 chan->flag |= HOSTAPD_CHAN_VHT_10_70; 6543 6544 if (chan->freq - 30 >= start && chan->freq + 50 <= end) 6545 chan->flag |= HOSTAPD_CHAN_VHT_30_50; 6546 6547 if (chan->freq - 50 >= start && chan->freq + 30 <= end) 6548 chan->flag |= HOSTAPD_CHAN_VHT_50_30; 6549 6550 if (chan->freq - 70 >= start && chan->freq + 10 <= end) 6551 chan->flag |= HOSTAPD_CHAN_VHT_70_10; 6552 } 6553} 6554 6555 6556static void nl80211_reg_rule_vht(struct nlattr *tb[], 6557 struct phy_info_arg *results) 6558{ 6559 u32 start, end, max_bw; 6560 u16 m; 6561 6562 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6563 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 6564 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 6565 return; 6566 6567 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6568 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6569 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6570 6571 if (max_bw < 80) 6572 return; 6573 6574 for (m = 0; m < *results->num_modes; m++) { 6575 if (!(results->modes[m].ht_capab & 6576 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6577 continue; 6578 /* TODO: use a real VHT support indication */ 6579 if (!results->modes[m].vht_capab) 6580 continue; 6581 6582 nl80211_set_vht_mode(&results->modes[m], start, end); 6583 } 6584} 6585 6586 6587static const char * dfs_domain_name(enum nl80211_dfs_regions region) 6588{ 6589 switch (region) { 6590 case NL80211_DFS_UNSET: 6591 return "DFS-UNSET"; 6592 case NL80211_DFS_FCC: 6593 return "DFS-FCC"; 6594 case NL80211_DFS_ETSI: 6595 return "DFS-ETSI"; 6596 case NL80211_DFS_JP: 6597 return "DFS-JP"; 6598 default: 6599 return "DFS-invalid"; 6600 } 6601} 6602 6603 6604static int nl80211_get_reg(struct nl_msg *msg, void *arg) 6605{ 6606 struct phy_info_arg *results = arg; 6607 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 6608 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 6609 struct nlattr *nl_rule; 6610 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1]; 6611 int rem_rule; 6612 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 6613 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, 6614 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, 6615 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, 6616 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, 6617 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, 6618 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, 6619 }; 6620 6621 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 6622 genlmsg_attrlen(gnlh, 0), NULL); 6623 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] || 6624 !tb_msg[NL80211_ATTR_REG_RULES]) { 6625 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information " 6626 "available"); 6627 return NL_SKIP; 6628 } 6629 6630 if (tb_msg[NL80211_ATTR_DFS_REGION]) { 6631 enum nl80211_dfs_regions dfs_domain; 6632 dfs_domain = nla_get_u8(tb_msg[NL80211_ATTR_DFS_REGION]); 6633 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s (%s)", 6634 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]), 6635 dfs_domain_name(dfs_domain)); 6636 } else { 6637 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s", 6638 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2])); 6639 } 6640 6641 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6642 { 6643 u32 start, end, max_eirp = 0, max_bw = 0; 6644 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6645 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6646 if (tb_rule[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6647 tb_rule[NL80211_ATTR_FREQ_RANGE_END] == NULL) 6648 continue; 6649 start = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6650 end = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6651 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) 6652 max_eirp = nla_get_u32(tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) / 100; 6653 if (tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) 6654 max_bw = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6655 6656 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz %u mBm", 6657 start, end, max_bw, max_eirp); 6658 if (max_bw >= 40) 6659 nl80211_reg_rule_ht40(start, end, results); 6660 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) 6661 nl80211_reg_rule_max_eirp(start, end, max_eirp, 6662 results); 6663 } 6664 6665 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6666 { 6667 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6668 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6669 nl80211_reg_rule_sec(tb_rule, results); 6670 } 6671 6672 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6673 { 6674 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6675 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6676 nl80211_reg_rule_vht(tb_rule, results); 6677 } 6678 6679 return NL_SKIP; 6680} 6681 6682 6683static int nl80211_set_regulatory_flags(struct wpa_driver_nl80211_data *drv, 6684 struct phy_info_arg *results) 6685{ 6686 struct nl_msg *msg; 6687 6688 msg = nlmsg_alloc(); 6689 if (!msg) 6690 return -ENOMEM; 6691 6692 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 6693 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results); 6694} 6695 6696 6697static struct hostapd_hw_modes * 6698wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags) 6699{ 6700 u32 feat; 6701 struct i802_bss *bss = priv; 6702 struct wpa_driver_nl80211_data *drv = bss->drv; 6703 struct nl_msg *msg; 6704 struct phy_info_arg result = { 6705 .num_modes = num_modes, 6706 .modes = NULL, 6707 .last_mode = -1, 6708 }; 6709 6710 *num_modes = 0; 6711 *flags = 0; 6712 6713 msg = nlmsg_alloc(); 6714 if (!msg) 6715 return NULL; 6716 6717 feat = get_nl80211_protocol_features(drv); 6718 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 6719 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 6720 else 6721 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 6722 6723 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 6724 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6725 6726 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) { 6727 nl80211_set_regulatory_flags(drv, &result); 6728 return wpa_driver_nl80211_postprocess_modes(result.modes, 6729 num_modes); 6730 } 6731 msg = NULL; 6732 nla_put_failure: 6733 nlmsg_free(msg); 6734 return NULL; 6735} 6736 6737 6738static int wpa_driver_nl80211_send_mntr(struct wpa_driver_nl80211_data *drv, 6739 const void *data, size_t len, 6740 int encrypt, int noack) 6741{ 6742 __u8 rtap_hdr[] = { 6743 0x00, 0x00, /* radiotap version */ 6744 0x0e, 0x00, /* radiotap length */ 6745 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */ 6746 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */ 6747 0x00, /* padding */ 6748 0x00, 0x00, /* RX and TX flags to indicate that */ 6749 0x00, 0x00, /* this is the injected frame directly */ 6750 }; 6751 struct iovec iov[2] = { 6752 { 6753 .iov_base = &rtap_hdr, 6754 .iov_len = sizeof(rtap_hdr), 6755 }, 6756 { 6757 .iov_base = (void *) data, 6758 .iov_len = len, 6759 } 6760 }; 6761 struct msghdr msg = { 6762 .msg_name = NULL, 6763 .msg_namelen = 0, 6764 .msg_iov = iov, 6765 .msg_iovlen = 2, 6766 .msg_control = NULL, 6767 .msg_controllen = 0, 6768 .msg_flags = 0, 6769 }; 6770 int res; 6771 u16 txflags = 0; 6772 6773 if (encrypt) 6774 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP; 6775 6776 if (drv->monitor_sock < 0) { 6777 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available " 6778 "for %s", __func__); 6779 return -1; 6780 } 6781 6782 if (noack) 6783 txflags |= IEEE80211_RADIOTAP_F_TX_NOACK; 6784 WPA_PUT_LE16(&rtap_hdr[12], txflags); 6785 6786 res = sendmsg(drv->monitor_sock, &msg, 0); 6787 if (res < 0) { 6788 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno)); 6789 return -1; 6790 } 6791 return 0; 6792} 6793 6794 6795static int wpa_driver_nl80211_send_frame(struct i802_bss *bss, 6796 const void *data, size_t len, 6797 int encrypt, int noack, 6798 unsigned int freq, int no_cck, 6799 int offchanok, unsigned int wait_time) 6800{ 6801 struct wpa_driver_nl80211_data *drv = bss->drv; 6802 u64 cookie; 6803 int res; 6804 6805 if (freq == 0) { 6806 wpa_printf(MSG_DEBUG, "nl80211: send_frame - Use bss->freq=%u", 6807 bss->freq); 6808 freq = bss->freq; 6809 } 6810 6811 if (drv->use_monitor) { 6812 wpa_printf(MSG_DEBUG, "nl80211: send_frame(freq=%u bss->freq=%u) -> send_mntr", 6813 freq, bss->freq); 6814 return wpa_driver_nl80211_send_mntr(drv, data, len, 6815 encrypt, noack); 6816 } 6817 6818 wpa_printf(MSG_DEBUG, "nl80211: send_frame -> send_frame_cmd"); 6819 res = nl80211_send_frame_cmd(bss, freq, wait_time, data, len, 6820 &cookie, no_cck, noack, offchanok); 6821 if (res == 0 && !noack) { 6822 const struct ieee80211_mgmt *mgmt; 6823 u16 fc; 6824 6825 mgmt = (const struct ieee80211_mgmt *) data; 6826 fc = le_to_host16(mgmt->frame_control); 6827 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6828 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_ACTION) { 6829 wpa_printf(MSG_MSGDUMP, 6830 "nl80211: Update send_action_cookie from 0x%llx to 0x%llx", 6831 (long long unsigned int) 6832 drv->send_action_cookie, 6833 (long long unsigned int) cookie); 6834 drv->send_action_cookie = cookie; 6835 } 6836 } 6837 6838 return res; 6839} 6840 6841 6842static int wpa_driver_nl80211_send_mlme(struct i802_bss *bss, const u8 *data, 6843 size_t data_len, int noack, 6844 unsigned int freq, int no_cck, 6845 int offchanok, 6846 unsigned int wait_time) 6847{ 6848 struct wpa_driver_nl80211_data *drv = bss->drv; 6849 struct ieee80211_mgmt *mgmt; 6850 int encrypt = 1; 6851 u16 fc; 6852 6853 mgmt = (struct ieee80211_mgmt *) data; 6854 fc = le_to_host16(mgmt->frame_control); 6855 wpa_printf(MSG_DEBUG, "nl80211: send_mlme - noack=%d freq=%u no_cck=%d offchanok=%d wait_time=%u fc=0x%x nlmode=%d", 6856 noack, freq, no_cck, offchanok, wait_time, fc, drv->nlmode); 6857 6858 if ((is_sta_interface(drv->nlmode) || 6859 drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) && 6860 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6861 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) { 6862 /* 6863 * The use of last_mgmt_freq is a bit of a hack, 6864 * but it works due to the single-threaded nature 6865 * of wpa_supplicant. 6866 */ 6867 if (freq == 0) { 6868 wpa_printf(MSG_DEBUG, "nl80211: Use last_mgmt_freq=%d", 6869 drv->last_mgmt_freq); 6870 freq = drv->last_mgmt_freq; 6871 } 6872 return nl80211_send_frame_cmd(bss, freq, 0, 6873 data, data_len, NULL, 1, noack, 6874 1); 6875 } 6876 6877 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) { 6878 if (freq == 0) { 6879 wpa_printf(MSG_DEBUG, "nl80211: Use bss->freq=%d", 6880 bss->freq); 6881 freq = bss->freq; 6882 } 6883 return nl80211_send_frame_cmd(bss, freq, 6884 (int) freq == bss->freq ? 0 : 6885 wait_time, 6886 data, data_len, 6887 &drv->send_action_cookie, 6888 no_cck, noack, offchanok); 6889 } 6890 6891 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6892 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) { 6893 /* 6894 * Only one of the authentication frame types is encrypted. 6895 * In order for static WEP encryption to work properly (i.e., 6896 * to not encrypt the frame), we need to tell mac80211 about 6897 * the frames that must not be encrypted. 6898 */ 6899 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg); 6900 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction); 6901 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3) 6902 encrypt = 0; 6903 } 6904 6905 wpa_printf(MSG_DEBUG, "nl80211: send_mlme -> send_frame"); 6906 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 6907 noack, freq, no_cck, offchanok, 6908 wait_time); 6909} 6910 6911 6912static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble, 6913 int slot, int ht_opmode, int ap_isolate, 6914 int *basic_rates) 6915{ 6916 struct wpa_driver_nl80211_data *drv = bss->drv; 6917 struct nl_msg *msg; 6918 6919 msg = nlmsg_alloc(); 6920 if (!msg) 6921 return -ENOMEM; 6922 6923 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS); 6924 6925 if (cts >= 0) 6926 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts); 6927 if (preamble >= 0) 6928 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble); 6929 if (slot >= 0) 6930 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot); 6931 if (ht_opmode >= 0) 6932 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode); 6933 if (ap_isolate >= 0) 6934 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate); 6935 6936 if (basic_rates) { 6937 u8 rates[NL80211_MAX_SUPP_RATES]; 6938 u8 rates_len = 0; 6939 int i; 6940 6941 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; 6942 i++) 6943 rates[rates_len++] = basic_rates[i] / 5; 6944 6945 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates); 6946 } 6947 6948 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 6949 6950 return send_and_recv_msgs(drv, msg, NULL, NULL); 6951 nla_put_failure: 6952 nlmsg_free(msg); 6953 return -ENOBUFS; 6954} 6955 6956 6957static int wpa_driver_nl80211_set_acl(void *priv, 6958 struct hostapd_acl_params *params) 6959{ 6960 struct i802_bss *bss = priv; 6961 struct wpa_driver_nl80211_data *drv = bss->drv; 6962 struct nl_msg *msg; 6963 struct nlattr *acl; 6964 unsigned int i; 6965 int ret = 0; 6966 6967 if (!(drv->capa.max_acl_mac_addrs)) 6968 return -ENOTSUP; 6969 6970 if (params->num_mac_acl > drv->capa.max_acl_mac_addrs) 6971 return -ENOTSUP; 6972 6973 msg = nlmsg_alloc(); 6974 if (!msg) 6975 return -ENOMEM; 6976 6977 wpa_printf(MSG_DEBUG, "nl80211: Set %s ACL (num_mac_acl=%u)", 6978 params->acl_policy ? "Accept" : "Deny", params->num_mac_acl); 6979 6980 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_MAC_ACL); 6981 6982 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6983 6984 NLA_PUT_U32(msg, NL80211_ATTR_ACL_POLICY, params->acl_policy ? 6985 NL80211_ACL_POLICY_DENY_UNLESS_LISTED : 6986 NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED); 6987 6988 acl = nla_nest_start(msg, NL80211_ATTR_MAC_ADDRS); 6989 if (acl == NULL) 6990 goto nla_put_failure; 6991 6992 for (i = 0; i < params->num_mac_acl; i++) 6993 NLA_PUT(msg, i + 1, ETH_ALEN, params->mac_acl[i].addr); 6994 6995 nla_nest_end(msg, acl); 6996 6997 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6998 msg = NULL; 6999 if (ret) { 7000 wpa_printf(MSG_DEBUG, "nl80211: Failed to set MAC ACL: %d (%s)", 7001 ret, strerror(-ret)); 7002 } 7003 7004nla_put_failure: 7005 nlmsg_free(msg); 7006 7007 return ret; 7008} 7009 7010 7011static int wpa_driver_nl80211_set_ap(void *priv, 7012 struct wpa_driver_ap_params *params) 7013{ 7014 struct i802_bss *bss = priv; 7015 struct wpa_driver_nl80211_data *drv = bss->drv; 7016 struct nl_msg *msg; 7017 u8 cmd = NL80211_CMD_NEW_BEACON; 7018 int ret; 7019 int beacon_set; 7020 int ifindex = if_nametoindex(bss->ifname); 7021 int num_suites; 7022 u32 suites[10], suite; 7023 u32 ver; 7024 7025 beacon_set = bss->beacon_set; 7026 7027 msg = nlmsg_alloc(); 7028 if (!msg) 7029 return -ENOMEM; 7030 7031 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)", 7032 beacon_set); 7033 if (beacon_set) 7034 cmd = NL80211_CMD_SET_BEACON; 7035 7036 nl80211_cmd(drv, msg, 0, cmd); 7037 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon head", 7038 params->head, params->head_len); 7039 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head); 7040 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon tail", 7041 params->tail, params->tail_len); 7042 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail); 7043 wpa_printf(MSG_DEBUG, "nl80211: ifindex=%d", ifindex); 7044 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 7045 wpa_printf(MSG_DEBUG, "nl80211: beacon_int=%d", params->beacon_int); 7046 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int); 7047 wpa_printf(MSG_DEBUG, "nl80211: dtim_period=%d", params->dtim_period); 7048 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period); 7049 wpa_hexdump_ascii(MSG_DEBUG, "nl80211: ssid", 7050 params->ssid, params->ssid_len); 7051 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7052 params->ssid); 7053 if (params->proberesp && params->proberesp_len) { 7054 wpa_hexdump(MSG_DEBUG, "nl80211: proberesp (offload)", 7055 params->proberesp, params->proberesp_len); 7056 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len, 7057 params->proberesp); 7058 } 7059 switch (params->hide_ssid) { 7060 case NO_SSID_HIDING: 7061 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID not in use"); 7062 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 7063 NL80211_HIDDEN_SSID_NOT_IN_USE); 7064 break; 7065 case HIDDEN_SSID_ZERO_LEN: 7066 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero len"); 7067 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 7068 NL80211_HIDDEN_SSID_ZERO_LEN); 7069 break; 7070 case HIDDEN_SSID_ZERO_CONTENTS: 7071 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero contents"); 7072 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 7073 NL80211_HIDDEN_SSID_ZERO_CONTENTS); 7074 break; 7075 } 7076 wpa_printf(MSG_DEBUG, "nl80211: privacy=%d", params->privacy); 7077 if (params->privacy) 7078 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 7079 wpa_printf(MSG_DEBUG, "nl80211: auth_algs=0x%x", params->auth_algs); 7080 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) == 7081 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) { 7082 /* Leave out the attribute */ 7083 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED) 7084 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 7085 NL80211_AUTHTYPE_SHARED_KEY); 7086 else 7087 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 7088 NL80211_AUTHTYPE_OPEN_SYSTEM); 7089 7090 wpa_printf(MSG_DEBUG, "nl80211: wpa_version=0x%x", params->wpa_version); 7091 ver = 0; 7092 if (params->wpa_version & WPA_PROTO_WPA) 7093 ver |= NL80211_WPA_VERSION_1; 7094 if (params->wpa_version & WPA_PROTO_RSN) 7095 ver |= NL80211_WPA_VERSION_2; 7096 if (ver) 7097 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 7098 7099 wpa_printf(MSG_DEBUG, "nl80211: key_mgmt_suites=0x%x", 7100 params->key_mgmt_suites); 7101 num_suites = 0; 7102 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X) 7103 suites[num_suites++] = WLAN_AKM_SUITE_8021X; 7104 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK) 7105 suites[num_suites++] = WLAN_AKM_SUITE_PSK; 7106 if (num_suites) { 7107 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES, 7108 num_suites * sizeof(u32), suites); 7109 } 7110 7111 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X && 7112 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)) 7113 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT); 7114 7115 wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x", 7116 params->pairwise_ciphers); 7117 num_suites = wpa_cipher_to_cipher_suites(params->pairwise_ciphers, 7118 suites, ARRAY_SIZE(suites)); 7119 if (num_suites) { 7120 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, 7121 num_suites * sizeof(u32), suites); 7122 } 7123 7124 wpa_printf(MSG_DEBUG, "nl80211: group_cipher=0x%x", 7125 params->group_cipher); 7126 suite = wpa_cipher_to_cipher_suite(params->group_cipher); 7127 if (suite) 7128 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, suite); 7129 7130 if (params->beacon_ies) { 7131 wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies", 7132 params->beacon_ies); 7133 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies), 7134 wpabuf_head(params->beacon_ies)); 7135 } 7136 if (params->proberesp_ies) { 7137 wpa_hexdump_buf(MSG_DEBUG, "nl80211: proberesp_ies", 7138 params->proberesp_ies); 7139 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, 7140 wpabuf_len(params->proberesp_ies), 7141 wpabuf_head(params->proberesp_ies)); 7142 } 7143 if (params->assocresp_ies) { 7144 wpa_hexdump_buf(MSG_DEBUG, "nl80211: assocresp_ies", 7145 params->assocresp_ies); 7146 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP, 7147 wpabuf_len(params->assocresp_ies), 7148 wpabuf_head(params->assocresp_ies)); 7149 } 7150 7151 if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) { 7152 wpa_printf(MSG_DEBUG, "nl80211: ap_max_inactivity=%d", 7153 params->ap_max_inactivity); 7154 NLA_PUT_U16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT, 7155 params->ap_max_inactivity); 7156 } 7157 7158 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7159 if (ret) { 7160 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)", 7161 ret, strerror(-ret)); 7162 } else { 7163 bss->beacon_set = 1; 7164 nl80211_set_bss(bss, params->cts_protect, params->preamble, 7165 params->short_slot_time, params->ht_opmode, 7166 params->isolate, params->basic_rates); 7167 } 7168 return ret; 7169 nla_put_failure: 7170 nlmsg_free(msg); 7171 return -ENOBUFS; 7172} 7173 7174 7175static int nl80211_put_freq_params(struct nl_msg *msg, 7176 struct hostapd_freq_params *freq) 7177{ 7178 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); 7179 if (freq->vht_enabled) { 7180 switch (freq->bandwidth) { 7181 case 20: 7182 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7183 NL80211_CHAN_WIDTH_20); 7184 break; 7185 case 40: 7186 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7187 NL80211_CHAN_WIDTH_40); 7188 break; 7189 case 80: 7190 if (freq->center_freq2) 7191 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7192 NL80211_CHAN_WIDTH_80P80); 7193 else 7194 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7195 NL80211_CHAN_WIDTH_80); 7196 break; 7197 case 160: 7198 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7199 NL80211_CHAN_WIDTH_160); 7200 break; 7201 default: 7202 return -EINVAL; 7203 } 7204 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); 7205 if (freq->center_freq2) 7206 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, 7207 freq->center_freq2); 7208 } else if (freq->ht_enabled) { 7209 switch (freq->sec_channel_offset) { 7210 case -1: 7211 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 7212 NL80211_CHAN_HT40MINUS); 7213 break; 7214 case 1: 7215 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 7216 NL80211_CHAN_HT40PLUS); 7217 break; 7218 default: 7219 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 7220 NL80211_CHAN_HT20); 7221 break; 7222 } 7223 } 7224 return 0; 7225 7226nla_put_failure: 7227 return -ENOBUFS; 7228} 7229 7230 7231static int wpa_driver_nl80211_set_freq(struct i802_bss *bss, 7232 struct hostapd_freq_params *freq) 7233{ 7234 struct wpa_driver_nl80211_data *drv = bss->drv; 7235 struct nl_msg *msg; 7236 int ret; 7237 7238 wpa_printf(MSG_DEBUG, 7239 "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d, bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)", 7240 freq->freq, freq->ht_enabled, freq->vht_enabled, 7241 freq->bandwidth, freq->center_freq1, freq->center_freq2); 7242 msg = nlmsg_alloc(); 7243 if (!msg) 7244 return -1; 7245 7246 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 7247 7248 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7249 if (nl80211_put_freq_params(msg, freq) < 0) 7250 goto nla_put_failure; 7251 7252 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7253 msg = NULL; 7254 if (ret == 0) { 7255 bss->freq = freq->freq; 7256 return 0; 7257 } 7258 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): " 7259 "%d (%s)", freq->freq, ret, strerror(-ret)); 7260nla_put_failure: 7261 nlmsg_free(msg); 7262 return -1; 7263} 7264 7265 7266static u32 sta_flags_nl80211(int flags) 7267{ 7268 u32 f = 0; 7269 7270 if (flags & WPA_STA_AUTHORIZED) 7271 f |= BIT(NL80211_STA_FLAG_AUTHORIZED); 7272 if (flags & WPA_STA_WMM) 7273 f |= BIT(NL80211_STA_FLAG_WME); 7274 if (flags & WPA_STA_SHORT_PREAMBLE) 7275 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); 7276 if (flags & WPA_STA_MFP) 7277 f |= BIT(NL80211_STA_FLAG_MFP); 7278 if (flags & WPA_STA_TDLS_PEER) 7279 f |= BIT(NL80211_STA_FLAG_TDLS_PEER); 7280 7281 return f; 7282} 7283 7284 7285static int wpa_driver_nl80211_sta_add(void *priv, 7286 struct hostapd_sta_add_params *params) 7287{ 7288 struct i802_bss *bss = priv; 7289 struct wpa_driver_nl80211_data *drv = bss->drv; 7290 struct nl_msg *msg; 7291 struct nl80211_sta_flag_update upd; 7292 int ret = -ENOBUFS; 7293 7294 if ((params->flags & WPA_STA_TDLS_PEER) && 7295 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 7296 return -EOPNOTSUPP; 7297 7298 msg = nlmsg_alloc(); 7299 if (!msg) 7300 return -ENOMEM; 7301 7302 wpa_printf(MSG_DEBUG, "nl80211: %s STA " MACSTR, 7303 params->set ? "Set" : "Add", MAC2STR(params->addr)); 7304 nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION : 7305 NL80211_CMD_NEW_STATION); 7306 7307 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 7308 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr); 7309 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len, 7310 params->supp_rates); 7311 wpa_hexdump(MSG_DEBUG, " * supported rates", params->supp_rates, 7312 params->supp_rates_len); 7313 if (!params->set) { 7314 if (params->aid) { 7315 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid); 7316 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid); 7317 } else { 7318 /* 7319 * cfg80211 validates that AID is non-zero, so we have 7320 * to make this a non-zero value for the TDLS case where 7321 * a dummy STA entry is used for now. 7322 */ 7323 wpa_printf(MSG_DEBUG, " * aid=1 (TDLS workaround)"); 7324 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, 1); 7325 } 7326 wpa_printf(MSG_DEBUG, " * listen_interval=%u", 7327 params->listen_interval); 7328 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, 7329 params->listen_interval); 7330 } else if (params->aid && (params->flags & WPA_STA_TDLS_PEER)) { 7331 wpa_printf(MSG_DEBUG, " * peer_aid=%u", params->aid); 7332 NLA_PUT_U16(msg, NL80211_ATTR_PEER_AID, params->aid); 7333 } 7334 if (params->ht_capabilities) { 7335 wpa_hexdump(MSG_DEBUG, " * ht_capabilities", 7336 (u8 *) params->ht_capabilities, 7337 sizeof(*params->ht_capabilities)); 7338 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, 7339 sizeof(*params->ht_capabilities), 7340 params->ht_capabilities); 7341 } 7342 7343 if (params->vht_capabilities) { 7344 wpa_hexdump(MSG_DEBUG, " * vht_capabilities", 7345 (u8 *) params->vht_capabilities, 7346 sizeof(*params->vht_capabilities)); 7347 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, 7348 sizeof(*params->vht_capabilities), 7349 params->vht_capabilities); 7350 } 7351 7352 wpa_printf(MSG_DEBUG, " * capability=0x%x", params->capability); 7353 NLA_PUT_U16(msg, NL80211_ATTR_STA_CAPABILITY, params->capability); 7354 7355 if (params->ext_capab) { 7356 wpa_hexdump(MSG_DEBUG, " * ext_capab", 7357 params->ext_capab, params->ext_capab_len); 7358 NLA_PUT(msg, NL80211_ATTR_STA_EXT_CAPABILITY, 7359 params->ext_capab_len, params->ext_capab); 7360 } 7361 7362 if (params->supp_channels) { 7363 wpa_hexdump(MSG_DEBUG, " * supported channels", 7364 params->supp_channels, params->supp_channels_len); 7365 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_CHANNELS, 7366 params->supp_channels_len, params->supp_channels); 7367 } 7368 7369 if (params->supp_oper_classes) { 7370 wpa_hexdump(MSG_DEBUG, " * supported operating classes", 7371 params->supp_oper_classes, 7372 params->supp_oper_classes_len); 7373 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES, 7374 params->supp_oper_classes_len, 7375 params->supp_oper_classes); 7376 } 7377 7378 os_memset(&upd, 0, sizeof(upd)); 7379 upd.mask = sta_flags_nl80211(params->flags); 7380 upd.set = upd.mask; 7381 wpa_printf(MSG_DEBUG, " * flags set=0x%x mask=0x%x", 7382 upd.set, upd.mask); 7383 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 7384 7385 if (params->flags & WPA_STA_WMM) { 7386 struct nlattr *wme = nla_nest_start(msg, NL80211_ATTR_STA_WME); 7387 7388 if (!wme) 7389 goto nla_put_failure; 7390 7391 wpa_printf(MSG_DEBUG, " * qosinfo=0x%x", params->qosinfo); 7392 NLA_PUT_U8(msg, NL80211_STA_WME_UAPSD_QUEUES, 7393 params->qosinfo & WMM_QOSINFO_STA_AC_MASK); 7394 NLA_PUT_U8(msg, NL80211_STA_WME_MAX_SP, 7395 (params->qosinfo >> WMM_QOSINFO_STA_SP_SHIFT) & 7396 WMM_QOSINFO_STA_SP_MASK); 7397 nla_nest_end(msg, wme); 7398 } 7399 7400 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7401 msg = NULL; 7402 if (ret) 7403 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION " 7404 "result: %d (%s)", params->set ? "SET" : "NEW", ret, 7405 strerror(-ret)); 7406 if (ret == -EEXIST) 7407 ret = 0; 7408 nla_put_failure: 7409 nlmsg_free(msg); 7410 return ret; 7411} 7412 7413 7414static int wpa_driver_nl80211_sta_remove(struct i802_bss *bss, const u8 *addr) 7415{ 7416 struct wpa_driver_nl80211_data *drv = bss->drv; 7417 struct nl_msg *msg; 7418 int ret; 7419 7420 msg = nlmsg_alloc(); 7421 if (!msg) 7422 return -ENOMEM; 7423 7424 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 7425 7426 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 7427 if_nametoindex(bss->ifname)); 7428 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 7429 7430 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7431 wpa_printf(MSG_DEBUG, "nl80211: sta_remove -> DEL_STATION %s " MACSTR 7432 " --> %d (%s)", 7433 bss->ifname, MAC2STR(addr), ret, strerror(-ret)); 7434 if (ret == -ENOENT) 7435 return 0; 7436 return ret; 7437 nla_put_failure: 7438 nlmsg_free(msg); 7439 return -ENOBUFS; 7440} 7441 7442 7443static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, 7444 int ifidx) 7445{ 7446 struct nl_msg *msg; 7447 7448 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx); 7449 7450 /* stop listening for EAPOL on this interface */ 7451 del_ifidx(drv, ifidx); 7452 7453 msg = nlmsg_alloc(); 7454 if (!msg) 7455 goto nla_put_failure; 7456 7457 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 7458 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx); 7459 7460 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 7461 return; 7462 msg = NULL; 7463 nla_put_failure: 7464 nlmsg_free(msg); 7465 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx); 7466} 7467 7468 7469static const char * nl80211_iftype_str(enum nl80211_iftype mode) 7470{ 7471 switch (mode) { 7472 case NL80211_IFTYPE_ADHOC: 7473 return "ADHOC"; 7474 case NL80211_IFTYPE_STATION: 7475 return "STATION"; 7476 case NL80211_IFTYPE_AP: 7477 return "AP"; 7478 case NL80211_IFTYPE_AP_VLAN: 7479 return "AP_VLAN"; 7480 case NL80211_IFTYPE_WDS: 7481 return "WDS"; 7482 case NL80211_IFTYPE_MONITOR: 7483 return "MONITOR"; 7484 case NL80211_IFTYPE_MESH_POINT: 7485 return "MESH_POINT"; 7486 case NL80211_IFTYPE_P2P_CLIENT: 7487 return "P2P_CLIENT"; 7488 case NL80211_IFTYPE_P2P_GO: 7489 return "P2P_GO"; 7490 case NL80211_IFTYPE_P2P_DEVICE: 7491 return "P2P_DEVICE"; 7492 default: 7493 return "unknown"; 7494 } 7495} 7496 7497 7498static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv, 7499 const char *ifname, 7500 enum nl80211_iftype iftype, 7501 const u8 *addr, int wds, 7502 int (*handler)(struct nl_msg *, void *), 7503 void *arg) 7504{ 7505 struct nl_msg *msg; 7506 int ifidx; 7507 int ret = -ENOBUFS; 7508 7509 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)", 7510 iftype, nl80211_iftype_str(iftype)); 7511 7512 msg = nlmsg_alloc(); 7513 if (!msg) 7514 return -1; 7515 7516 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE); 7517 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 7518 goto nla_put_failure; 7519 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname); 7520 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype); 7521 7522 if (iftype == NL80211_IFTYPE_MONITOR) { 7523 struct nlattr *flags; 7524 7525 flags = nla_nest_start(msg, NL80211_ATTR_MNTR_FLAGS); 7526 if (!flags) 7527 goto nla_put_failure; 7528 7529 NLA_PUT_FLAG(msg, NL80211_MNTR_FLAG_COOK_FRAMES); 7530 7531 nla_nest_end(msg, flags); 7532 } else if (wds) { 7533 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds); 7534 } 7535 7536 ret = send_and_recv_msgs(drv, msg, handler, arg); 7537 msg = NULL; 7538 if (ret) { 7539 nla_put_failure: 7540 nlmsg_free(msg); 7541 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)", 7542 ifname, ret, strerror(-ret)); 7543 return ret; 7544 } 7545 7546 if (iftype == NL80211_IFTYPE_P2P_DEVICE) 7547 return 0; 7548 7549 ifidx = if_nametoindex(ifname); 7550 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d", 7551 ifname, ifidx); 7552 7553 if (ifidx <= 0) 7554 return -1; 7555 7556 /* start listening for EAPOL on this interface */ 7557 add_ifidx(drv, ifidx); 7558 7559 if (addr && iftype != NL80211_IFTYPE_MONITOR && 7560 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) { 7561 nl80211_remove_iface(drv, ifidx); 7562 return -1; 7563 } 7564 7565 return ifidx; 7566} 7567 7568 7569static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv, 7570 const char *ifname, enum nl80211_iftype iftype, 7571 const u8 *addr, int wds, 7572 int (*handler)(struct nl_msg *, void *), 7573 void *arg, int use_existing) 7574{ 7575 int ret; 7576 7577 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds, handler, 7578 arg); 7579 7580 /* if error occurred and interface exists already */ 7581 if (ret == -ENFILE && if_nametoindex(ifname)) { 7582 if (use_existing) { 7583 wpa_printf(MSG_DEBUG, "nl80211: Continue using existing interface %s", 7584 ifname); 7585 return -ENFILE; 7586 } 7587 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname); 7588 7589 /* Try to remove the interface that was already there. */ 7590 nl80211_remove_iface(drv, if_nametoindex(ifname)); 7591 7592 /* Try to create the interface again */ 7593 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, 7594 wds, handler, arg); 7595 } 7596 7597 if (ret >= 0 && is_p2p_net_interface(iftype)) 7598 nl80211_disable_11b_rates(drv, ret, 1); 7599 7600 return ret; 7601} 7602 7603 7604static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok) 7605{ 7606 struct ieee80211_hdr *hdr; 7607 u16 fc; 7608 union wpa_event_data event; 7609 7610 hdr = (struct ieee80211_hdr *) buf; 7611 fc = le_to_host16(hdr->frame_control); 7612 7613 os_memset(&event, 0, sizeof(event)); 7614 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 7615 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 7616 event.tx_status.dst = hdr->addr1; 7617 event.tx_status.data = buf; 7618 event.tx_status.data_len = len; 7619 event.tx_status.ack = ok; 7620 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event); 7621} 7622 7623 7624static void from_unknown_sta(struct wpa_driver_nl80211_data *drv, 7625 u8 *buf, size_t len) 7626{ 7627 struct ieee80211_hdr *hdr = (void *)buf; 7628 u16 fc; 7629 union wpa_event_data event; 7630 7631 if (len < sizeof(*hdr)) 7632 return; 7633 7634 fc = le_to_host16(hdr->frame_control); 7635 7636 os_memset(&event, 0, sizeof(event)); 7637 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len); 7638 event.rx_from_unknown.addr = hdr->addr2; 7639 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) == 7640 (WLAN_FC_FROMDS | WLAN_FC_TODS); 7641 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 7642} 7643 7644 7645static void handle_frame(struct wpa_driver_nl80211_data *drv, 7646 u8 *buf, size_t len, int datarate, int ssi_signal) 7647{ 7648 struct ieee80211_hdr *hdr; 7649 u16 fc; 7650 union wpa_event_data event; 7651 7652 hdr = (struct ieee80211_hdr *) buf; 7653 fc = le_to_host16(hdr->frame_control); 7654 7655 switch (WLAN_FC_GET_TYPE(fc)) { 7656 case WLAN_FC_TYPE_MGMT: 7657 os_memset(&event, 0, sizeof(event)); 7658 event.rx_mgmt.frame = buf; 7659 event.rx_mgmt.frame_len = len; 7660 event.rx_mgmt.datarate = datarate; 7661 event.rx_mgmt.ssi_signal = ssi_signal; 7662 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 7663 break; 7664 case WLAN_FC_TYPE_CTRL: 7665 /* can only get here with PS-Poll frames */ 7666 wpa_printf(MSG_DEBUG, "CTRL"); 7667 from_unknown_sta(drv, buf, len); 7668 break; 7669 case WLAN_FC_TYPE_DATA: 7670 from_unknown_sta(drv, buf, len); 7671 break; 7672 } 7673} 7674 7675 7676static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx) 7677{ 7678 struct wpa_driver_nl80211_data *drv = eloop_ctx; 7679 int len; 7680 unsigned char buf[3000]; 7681 struct ieee80211_radiotap_iterator iter; 7682 int ret; 7683 int datarate = 0, ssi_signal = 0; 7684 int injected = 0, failed = 0, rxflags = 0; 7685 7686 len = recv(sock, buf, sizeof(buf), 0); 7687 if (len < 0) { 7688 wpa_printf(MSG_ERROR, "nl80211: Monitor socket recv failed: %s", 7689 strerror(errno)); 7690 return; 7691 } 7692 7693 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) { 7694 wpa_printf(MSG_INFO, "nl80211: received invalid radiotap frame"); 7695 return; 7696 } 7697 7698 while (1) { 7699 ret = ieee80211_radiotap_iterator_next(&iter); 7700 if (ret == -ENOENT) 7701 break; 7702 if (ret) { 7703 wpa_printf(MSG_INFO, "nl80211: received invalid radiotap frame (%d)", 7704 ret); 7705 return; 7706 } 7707 switch (iter.this_arg_index) { 7708 case IEEE80211_RADIOTAP_FLAGS: 7709 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS) 7710 len -= 4; 7711 break; 7712 case IEEE80211_RADIOTAP_RX_FLAGS: 7713 rxflags = 1; 7714 break; 7715 case IEEE80211_RADIOTAP_TX_FLAGS: 7716 injected = 1; 7717 failed = le_to_host16((*(uint16_t *) iter.this_arg)) & 7718 IEEE80211_RADIOTAP_F_TX_FAIL; 7719 break; 7720 case IEEE80211_RADIOTAP_DATA_RETRIES: 7721 break; 7722 case IEEE80211_RADIOTAP_CHANNEL: 7723 /* TODO: convert from freq/flags to channel number */ 7724 break; 7725 case IEEE80211_RADIOTAP_RATE: 7726 datarate = *iter.this_arg * 5; 7727 break; 7728 case IEEE80211_RADIOTAP_DBM_ANTSIGNAL: 7729 ssi_signal = (s8) *iter.this_arg; 7730 break; 7731 } 7732 } 7733 7734 if (rxflags && injected) 7735 return; 7736 7737 if (!injected) 7738 handle_frame(drv, buf + iter.max_length, 7739 len - iter.max_length, datarate, ssi_signal); 7740 else 7741 handle_tx_callback(drv->ctx, buf + iter.max_length, 7742 len - iter.max_length, !failed); 7743} 7744 7745 7746/* 7747 * we post-process the filter code later and rewrite 7748 * this to the offset to the last instruction 7749 */ 7750#define PASS 0xFF 7751#define FAIL 0xFE 7752 7753static struct sock_filter msock_filter_insns[] = { 7754 /* 7755 * do a little-endian load of the radiotap length field 7756 */ 7757 /* load lower byte into A */ 7758 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2), 7759 /* put it into X (== index register) */ 7760 BPF_STMT(BPF_MISC| BPF_TAX, 0), 7761 /* load upper byte into A */ 7762 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3), 7763 /* left-shift it by 8 */ 7764 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8), 7765 /* or with X */ 7766 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0), 7767 /* put result into X */ 7768 BPF_STMT(BPF_MISC| BPF_TAX, 0), 7769 7770 /* 7771 * Allow management frames through, this also gives us those 7772 * management frames that we sent ourselves with status 7773 */ 7774 /* load the lower byte of the IEEE 802.11 frame control field */ 7775 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7776 /* mask off frame type and version */ 7777 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF), 7778 /* accept frame if it's both 0, fall through otherwise */ 7779 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0), 7780 7781 /* 7782 * TODO: add a bit to radiotap RX flags that indicates 7783 * that the sending station is not associated, then 7784 * add a filter here that filters on our DA and that flag 7785 * to allow us to deauth frames to that bad station. 7786 * 7787 * For now allow all To DS data frames through. 7788 */ 7789 /* load the IEEE 802.11 frame control field */ 7790 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0), 7791 /* mask off frame type, version and DS status */ 7792 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03), 7793 /* accept frame if version 0, type 2 and To DS, fall through otherwise 7794 */ 7795 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0), 7796 7797#if 0 7798 /* 7799 * drop non-data frames 7800 */ 7801 /* load the lower byte of the frame control field */ 7802 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7803 /* mask off QoS bit */ 7804 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c), 7805 /* drop non-data frames */ 7806 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL), 7807#endif 7808 /* load the upper byte of the frame control field */ 7809 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1), 7810 /* mask off toDS/fromDS */ 7811 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03), 7812 /* accept WDS frames */ 7813 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0), 7814 7815 /* 7816 * add header length to index 7817 */ 7818 /* load the lower byte of the frame control field */ 7819 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7820 /* mask off QoS bit */ 7821 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80), 7822 /* right shift it by 6 to give 0 or 2 */ 7823 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6), 7824 /* add data frame header length */ 7825 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24), 7826 /* add index, was start of 802.11 header */ 7827 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), 7828 /* move to index, now start of LL header */ 7829 BPF_STMT(BPF_MISC | BPF_TAX, 0), 7830 7831 /* 7832 * Accept empty data frames, we use those for 7833 * polling activity. 7834 */ 7835 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0), 7836 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0), 7837 7838 /* 7839 * Accept EAPOL frames 7840 */ 7841 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0), 7842 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL), 7843 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4), 7844 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL), 7845 7846 /* keep these last two statements or change the code below */ 7847 /* return 0 == "DROP" */ 7848 BPF_STMT(BPF_RET | BPF_K, 0), 7849 /* return ~0 == "keep all" */ 7850 BPF_STMT(BPF_RET | BPF_K, ~0), 7851}; 7852 7853static struct sock_fprog msock_filter = { 7854 .len = ARRAY_SIZE(msock_filter_insns), 7855 .filter = msock_filter_insns, 7856}; 7857 7858 7859static int add_monitor_filter(int s) 7860{ 7861 int idx; 7862 7863 /* rewrite all PASS/FAIL jump offsets */ 7864 for (idx = 0; idx < msock_filter.len; idx++) { 7865 struct sock_filter *insn = &msock_filter_insns[idx]; 7866 7867 if (BPF_CLASS(insn->code) == BPF_JMP) { 7868 if (insn->code == (BPF_JMP|BPF_JA)) { 7869 if (insn->k == PASS) 7870 insn->k = msock_filter.len - idx - 2; 7871 else if (insn->k == FAIL) 7872 insn->k = msock_filter.len - idx - 3; 7873 } 7874 7875 if (insn->jt == PASS) 7876 insn->jt = msock_filter.len - idx - 2; 7877 else if (insn->jt == FAIL) 7878 insn->jt = msock_filter.len - idx - 3; 7879 7880 if (insn->jf == PASS) 7881 insn->jf = msock_filter.len - idx - 2; 7882 else if (insn->jf == FAIL) 7883 insn->jf = msock_filter.len - idx - 3; 7884 } 7885 } 7886 7887 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER, 7888 &msock_filter, sizeof(msock_filter))) { 7889 wpa_printf(MSG_ERROR, "nl80211: setsockopt(SO_ATTACH_FILTER) failed: %s", 7890 strerror(errno)); 7891 return -1; 7892 } 7893 7894 return 0; 7895} 7896 7897 7898static void nl80211_remove_monitor_interface( 7899 struct wpa_driver_nl80211_data *drv) 7900{ 7901 if (drv->monitor_refcount > 0) 7902 drv->monitor_refcount--; 7903 wpa_printf(MSG_DEBUG, "nl80211: Remove monitor interface: refcount=%d", 7904 drv->monitor_refcount); 7905 if (drv->monitor_refcount > 0) 7906 return; 7907 7908 if (drv->monitor_ifidx >= 0) { 7909 nl80211_remove_iface(drv, drv->monitor_ifidx); 7910 drv->monitor_ifidx = -1; 7911 } 7912 if (drv->monitor_sock >= 0) { 7913 eloop_unregister_read_sock(drv->monitor_sock); 7914 close(drv->monitor_sock); 7915 drv->monitor_sock = -1; 7916 } 7917} 7918 7919 7920static int 7921nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv) 7922{ 7923 char buf[IFNAMSIZ]; 7924 struct sockaddr_ll ll; 7925 int optval; 7926 socklen_t optlen; 7927 7928 if (drv->monitor_ifidx >= 0) { 7929 drv->monitor_refcount++; 7930 wpa_printf(MSG_DEBUG, "nl80211: Re-use existing monitor interface: refcount=%d", 7931 drv->monitor_refcount); 7932 return 0; 7933 } 7934 7935 if (os_strncmp(drv->first_bss->ifname, "p2p-", 4) == 0) { 7936 /* 7937 * P2P interface name is of the format p2p-%s-%d. For monitor 7938 * interface name corresponding to P2P GO, replace "p2p-" with 7939 * "mon-" to retain the same interface name length and to 7940 * indicate that it is a monitor interface. 7941 */ 7942 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss->ifname + 4); 7943 } else { 7944 /* Non-P2P interface with AP functionality. */ 7945 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss->ifname); 7946 } 7947 7948 buf[IFNAMSIZ - 1] = '\0'; 7949 7950 drv->monitor_ifidx = 7951 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL, 7952 0, NULL, NULL, 0); 7953 7954 if (drv->monitor_ifidx == -EOPNOTSUPP) { 7955 /* 7956 * This is backward compatibility for a few versions of 7957 * the kernel only that didn't advertise the right 7958 * attributes for the only driver that then supported 7959 * AP mode w/o monitor -- ath6kl. 7960 */ 7961 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support " 7962 "monitor interface type - try to run without it"); 7963 drv->device_ap_sme = 1; 7964 } 7965 7966 if (drv->monitor_ifidx < 0) 7967 return -1; 7968 7969 if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1)) 7970 goto error; 7971 7972 memset(&ll, 0, sizeof(ll)); 7973 ll.sll_family = AF_PACKET; 7974 ll.sll_ifindex = drv->monitor_ifidx; 7975 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)); 7976 if (drv->monitor_sock < 0) { 7977 wpa_printf(MSG_ERROR, "nl80211: socket[PF_PACKET,SOCK_RAW] failed: %s", 7978 strerror(errno)); 7979 goto error; 7980 } 7981 7982 if (add_monitor_filter(drv->monitor_sock)) { 7983 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor " 7984 "interface; do filtering in user space"); 7985 /* This works, but will cost in performance. */ 7986 } 7987 7988 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) { 7989 wpa_printf(MSG_ERROR, "nl80211: monitor socket bind failed: %s", 7990 strerror(errno)); 7991 goto error; 7992 } 7993 7994 optlen = sizeof(optval); 7995 optval = 20; 7996 if (setsockopt 7997 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) { 7998 wpa_printf(MSG_ERROR, "nl80211: Failed to set socket priority: %s", 7999 strerror(errno)); 8000 goto error; 8001 } 8002 8003 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read, 8004 drv, NULL)) { 8005 wpa_printf(MSG_INFO, "nl80211: Could not register monitor read socket"); 8006 goto error; 8007 } 8008 8009 drv->monitor_refcount++; 8010 return 0; 8011 error: 8012 nl80211_remove_monitor_interface(drv); 8013 return -1; 8014} 8015 8016 8017static int nl80211_setup_ap(struct i802_bss *bss) 8018{ 8019 struct wpa_driver_nl80211_data *drv = bss->drv; 8020 8021 wpa_printf(MSG_DEBUG, "nl80211: Setup AP(%s) - device_ap_sme=%d use_monitor=%d", 8022 bss->ifname, drv->device_ap_sme, drv->use_monitor); 8023 8024 /* 8025 * Disable Probe Request reporting unless we need it in this way for 8026 * devices that include the AP SME, in the other case (unless using 8027 * monitor iface) we'll get it through the nl_mgmt socket instead. 8028 */ 8029 if (!drv->device_ap_sme) 8030 wpa_driver_nl80211_probe_req_report(bss, 0); 8031 8032 if (!drv->device_ap_sme && !drv->use_monitor) 8033 if (nl80211_mgmt_subscribe_ap(bss)) 8034 return -1; 8035 8036 if (drv->device_ap_sme && !drv->use_monitor) 8037 if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) 8038 return -1; 8039 8040 if (!drv->device_ap_sme && drv->use_monitor && 8041 nl80211_create_monitor_interface(drv) && 8042 !drv->device_ap_sme) 8043 return -1; 8044 8045 if (drv->device_ap_sme && 8046 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) { 8047 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable " 8048 "Probe Request frame reporting in AP mode"); 8049 /* Try to survive without this */ 8050 } 8051 8052 return 0; 8053} 8054 8055 8056static void nl80211_teardown_ap(struct i802_bss *bss) 8057{ 8058 struct wpa_driver_nl80211_data *drv = bss->drv; 8059 8060 wpa_printf(MSG_DEBUG, "nl80211: Teardown AP(%s) - device_ap_sme=%d use_monitor=%d", 8061 bss->ifname, drv->device_ap_sme, drv->use_monitor); 8062 if (drv->device_ap_sme) { 8063 wpa_driver_nl80211_probe_req_report(bss, 0); 8064 if (!drv->use_monitor) 8065 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)"); 8066 } else if (drv->use_monitor) 8067 nl80211_remove_monitor_interface(drv); 8068 else 8069 nl80211_mgmt_unsubscribe(bss, "AP teardown"); 8070 8071 bss->beacon_set = 0; 8072} 8073 8074 8075static int nl80211_send_eapol_data(struct i802_bss *bss, 8076 const u8 *addr, const u8 *data, 8077 size_t data_len) 8078{ 8079 struct sockaddr_ll ll; 8080 int ret; 8081 8082 if (bss->drv->eapol_tx_sock < 0) { 8083 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL"); 8084 return -1; 8085 } 8086 8087 os_memset(&ll, 0, sizeof(ll)); 8088 ll.sll_family = AF_PACKET; 8089 ll.sll_ifindex = bss->ifindex; 8090 ll.sll_protocol = htons(ETH_P_PAE); 8091 ll.sll_halen = ETH_ALEN; 8092 os_memcpy(ll.sll_addr, addr, ETH_ALEN); 8093 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0, 8094 (struct sockaddr *) &ll, sizeof(ll)); 8095 if (ret < 0) 8096 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s", 8097 strerror(errno)); 8098 8099 return ret; 8100} 8101 8102 8103static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 8104 8105static int wpa_driver_nl80211_hapd_send_eapol( 8106 void *priv, const u8 *addr, const u8 *data, 8107 size_t data_len, int encrypt, const u8 *own_addr, u32 flags) 8108{ 8109 struct i802_bss *bss = priv; 8110 struct wpa_driver_nl80211_data *drv = bss->drv; 8111 struct ieee80211_hdr *hdr; 8112 size_t len; 8113 u8 *pos; 8114 int res; 8115 int qos = flags & WPA_STA_WMM; 8116 8117 if (drv->device_ap_sme || !drv->use_monitor) 8118 return nl80211_send_eapol_data(bss, addr, data, data_len); 8119 8120 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 + 8121 data_len; 8122 hdr = os_zalloc(len); 8123 if (hdr == NULL) { 8124 wpa_printf(MSG_INFO, "nl80211: Failed to allocate EAPOL buffer(len=%lu)", 8125 (unsigned long) len); 8126 return -1; 8127 } 8128 8129 hdr->frame_control = 8130 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA); 8131 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS); 8132 if (encrypt) 8133 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP); 8134 if (qos) { 8135 hdr->frame_control |= 8136 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4); 8137 } 8138 8139 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN); 8140 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 8141 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 8142 pos = (u8 *) (hdr + 1); 8143 8144 if (qos) { 8145 /* Set highest priority in QoS header */ 8146 pos[0] = 7; 8147 pos[1] = 0; 8148 pos += 2; 8149 } 8150 8151 memcpy(pos, rfc1042_header, sizeof(rfc1042_header)); 8152 pos += sizeof(rfc1042_header); 8153 WPA_PUT_BE16(pos, ETH_P_PAE); 8154 pos += 2; 8155 memcpy(pos, data, data_len); 8156 8157 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0, 8158 0, 0, 0, 0); 8159 if (res < 0) { 8160 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - " 8161 "failed: %d (%s)", 8162 (unsigned long) len, errno, strerror(errno)); 8163 } 8164 os_free(hdr); 8165 8166 return res; 8167} 8168 8169 8170static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr, 8171 int total_flags, 8172 int flags_or, int flags_and) 8173{ 8174 struct i802_bss *bss = priv; 8175 struct wpa_driver_nl80211_data *drv = bss->drv; 8176 struct nl_msg *msg; 8177 struct nlattr *flags; 8178 struct nl80211_sta_flag_update upd; 8179 8180 msg = nlmsg_alloc(); 8181 if (!msg) 8182 return -ENOMEM; 8183 8184 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8185 8186 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8187 if_nametoindex(bss->ifname)); 8188 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8189 8190 /* 8191 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This 8192 * can be removed eventually. 8193 */ 8194 flags = nla_nest_start(msg, NL80211_ATTR_STA_FLAGS); 8195 if (!flags) 8196 goto nla_put_failure; 8197 if (total_flags & WPA_STA_AUTHORIZED) 8198 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_AUTHORIZED); 8199 8200 if (total_flags & WPA_STA_WMM) 8201 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_WME); 8202 8203 if (total_flags & WPA_STA_SHORT_PREAMBLE) 8204 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_SHORT_PREAMBLE); 8205 8206 if (total_flags & WPA_STA_MFP) 8207 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_MFP); 8208 8209 if (total_flags & WPA_STA_TDLS_PEER) 8210 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_TDLS_PEER); 8211 8212 nla_nest_end(msg, flags); 8213 8214 os_memset(&upd, 0, sizeof(upd)); 8215 upd.mask = sta_flags_nl80211(flags_or | ~flags_and); 8216 upd.set = sta_flags_nl80211(flags_or); 8217 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 8218 8219 return send_and_recv_msgs(drv, msg, NULL, NULL); 8220 nla_put_failure: 8221 nlmsg_free(msg); 8222 return -ENOBUFS; 8223} 8224 8225 8226static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv, 8227 struct wpa_driver_associate_params *params) 8228{ 8229 enum nl80211_iftype nlmode, old_mode; 8230 struct hostapd_freq_params freq = { 8231 .freq = params->freq, 8232 }; 8233 8234 if (params->p2p) { 8235 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P " 8236 "group (GO)"); 8237 nlmode = NL80211_IFTYPE_P2P_GO; 8238 } else 8239 nlmode = NL80211_IFTYPE_AP; 8240 8241 old_mode = drv->nlmode; 8242 if (wpa_driver_nl80211_set_mode(drv->first_bss, nlmode)) { 8243 nl80211_remove_monitor_interface(drv); 8244 return -1; 8245 } 8246 8247 if (wpa_driver_nl80211_set_freq(drv->first_bss, &freq)) { 8248 if (old_mode != nlmode) 8249 wpa_driver_nl80211_set_mode(drv->first_bss, old_mode); 8250 nl80211_remove_monitor_interface(drv); 8251 return -1; 8252 } 8253 8254 return 0; 8255} 8256 8257 8258static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv) 8259{ 8260 struct nl_msg *msg; 8261 int ret = -1; 8262 8263 msg = nlmsg_alloc(); 8264 if (!msg) 8265 return -1; 8266 8267 nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS); 8268 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8269 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8270 msg = NULL; 8271 if (ret) { 8272 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d " 8273 "(%s)", ret, strerror(-ret)); 8274 goto nla_put_failure; 8275 } 8276 8277 ret = 0; 8278 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully"); 8279 8280nla_put_failure: 8281 if (wpa_driver_nl80211_set_mode(drv->first_bss, 8282 NL80211_IFTYPE_STATION)) { 8283 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 8284 "station mode"); 8285 } 8286 8287 nlmsg_free(msg); 8288 return ret; 8289} 8290 8291 8292static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv, 8293 struct wpa_driver_associate_params *params) 8294{ 8295 struct nl_msg *msg; 8296 int ret = -1; 8297 int count = 0; 8298 8299 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex); 8300 8301 if (wpa_driver_nl80211_set_mode(drv->first_bss, 8302 NL80211_IFTYPE_ADHOC)) { 8303 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 8304 "IBSS mode"); 8305 return -1; 8306 } 8307 8308retry: 8309 msg = nlmsg_alloc(); 8310 if (!msg) 8311 return -1; 8312 8313 nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS); 8314 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8315 8316 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid)) 8317 goto nla_put_failure; 8318 8319 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 8320 params->ssid, params->ssid_len); 8321 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 8322 params->ssid); 8323 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 8324 drv->ssid_len = params->ssid_len; 8325 8326 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 8327 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 8328 8329 ret = nl80211_set_conn_keys(params, msg); 8330 if (ret) 8331 goto nla_put_failure; 8332 8333 if (params->bssid && params->fixed_bssid) { 8334 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR, 8335 MAC2STR(params->bssid)); 8336 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 8337 } 8338 8339 if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X || 8340 params->key_mgmt_suite == WPA_KEY_MGMT_PSK || 8341 params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 || 8342 params->key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256) { 8343 wpa_printf(MSG_DEBUG, " * control port"); 8344 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 8345 } 8346 8347 if (params->wpa_ie) { 8348 wpa_hexdump(MSG_DEBUG, 8349 " * Extra IEs for Beacon/Probe Response frames", 8350 params->wpa_ie, params->wpa_ie_len); 8351 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 8352 params->wpa_ie); 8353 } 8354 8355 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8356 msg = NULL; 8357 if (ret) { 8358 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)", 8359 ret, strerror(-ret)); 8360 count++; 8361 if (ret == -EALREADY && count == 1) { 8362 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after " 8363 "forced leave"); 8364 nl80211_leave_ibss(drv); 8365 nlmsg_free(msg); 8366 goto retry; 8367 } 8368 8369 goto nla_put_failure; 8370 } 8371 ret = 0; 8372 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully"); 8373 8374nla_put_failure: 8375 nlmsg_free(msg); 8376 return ret; 8377} 8378 8379 8380static int nl80211_connect_common(struct wpa_driver_nl80211_data *drv, 8381 struct wpa_driver_associate_params *params, 8382 struct nl_msg *msg) 8383{ 8384 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8385 8386 if (params->bssid) { 8387 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 8388 MAC2STR(params->bssid)); 8389 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 8390 } 8391 8392 if (params->freq) { 8393 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 8394 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 8395 drv->assoc_freq = params->freq; 8396 } else 8397 drv->assoc_freq = 0; 8398 8399 if (params->bg_scan_period >= 0) { 8400 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 8401 params->bg_scan_period); 8402 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 8403 params->bg_scan_period); 8404 } 8405 8406 if (params->ssid) { 8407 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 8408 params->ssid, params->ssid_len); 8409 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 8410 params->ssid); 8411 if (params->ssid_len > sizeof(drv->ssid)) 8412 goto nla_put_failure; 8413 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 8414 drv->ssid_len = params->ssid_len; 8415 } 8416 8417 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 8418 if (params->wpa_ie) 8419 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 8420 params->wpa_ie); 8421 8422 if (params->wpa_proto) { 8423 enum nl80211_wpa_versions ver = 0; 8424 8425 if (params->wpa_proto & WPA_PROTO_WPA) 8426 ver |= NL80211_WPA_VERSION_1; 8427 if (params->wpa_proto & WPA_PROTO_RSN) 8428 ver |= NL80211_WPA_VERSION_2; 8429 8430 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver); 8431 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 8432 } 8433 8434 if (params->pairwise_suite != WPA_CIPHER_NONE) { 8435 u32 cipher = wpa_cipher_to_cipher_suite(params->pairwise_suite); 8436 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher); 8437 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); 8438 } 8439 8440 if (params->group_suite != WPA_CIPHER_NONE) { 8441 u32 cipher = wpa_cipher_to_cipher_suite(params->group_suite); 8442 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher); 8443 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); 8444 } 8445 8446 if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X || 8447 params->key_mgmt_suite == WPA_KEY_MGMT_PSK || 8448 params->key_mgmt_suite == WPA_KEY_MGMT_FT_IEEE8021X || 8449 params->key_mgmt_suite == WPA_KEY_MGMT_FT_PSK || 8450 params->key_mgmt_suite == WPA_KEY_MGMT_CCKM) { 8451 int mgmt = WLAN_AKM_SUITE_PSK; 8452 8453 switch (params->key_mgmt_suite) { 8454 case WPA_KEY_MGMT_CCKM: 8455 mgmt = WLAN_AKM_SUITE_CCKM; 8456 break; 8457 case WPA_KEY_MGMT_IEEE8021X: 8458 mgmt = WLAN_AKM_SUITE_8021X; 8459 break; 8460 case WPA_KEY_MGMT_FT_IEEE8021X: 8461 mgmt = WLAN_AKM_SUITE_FT_8021X; 8462 break; 8463 case WPA_KEY_MGMT_FT_PSK: 8464 mgmt = WLAN_AKM_SUITE_FT_PSK; 8465 break; 8466 case WPA_KEY_MGMT_PSK: 8467 default: 8468 mgmt = WLAN_AKM_SUITE_PSK; 8469 break; 8470 } 8471 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt); 8472 } 8473 8474 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 8475 8476 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) 8477 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); 8478 8479 if (params->disable_ht) 8480 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); 8481 8482 if (params->htcaps && params->htcaps_mask) { 8483 int sz = sizeof(struct ieee80211_ht_capabilities); 8484 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); 8485 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 8486 params->htcaps_mask); 8487 } 8488 8489#ifdef CONFIG_VHT_OVERRIDES 8490 if (params->disable_vht) { 8491 wpa_printf(MSG_DEBUG, " * VHT disabled"); 8492 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT); 8493 } 8494 8495 if (params->vhtcaps && params->vhtcaps_mask) { 8496 int sz = sizeof(struct ieee80211_vht_capabilities); 8497 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps); 8498 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 8499 params->vhtcaps_mask); 8500 } 8501#endif /* CONFIG_VHT_OVERRIDES */ 8502 8503 if (params->p2p) 8504 wpa_printf(MSG_DEBUG, " * P2P group"); 8505 8506 return 0; 8507nla_put_failure: 8508 return -1; 8509} 8510 8511 8512static int wpa_driver_nl80211_try_connect( 8513 struct wpa_driver_nl80211_data *drv, 8514 struct wpa_driver_associate_params *params) 8515{ 8516 struct nl_msg *msg; 8517 enum nl80211_auth_type type; 8518 int ret; 8519 int algs; 8520 8521 msg = nlmsg_alloc(); 8522 if (!msg) 8523 return -1; 8524 8525 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex); 8526 nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT); 8527 8528 ret = nl80211_connect_common(drv, params, msg); 8529 if (ret) 8530 goto nla_put_failure; 8531 8532 algs = 0; 8533 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 8534 algs++; 8535 if (params->auth_alg & WPA_AUTH_ALG_SHARED) 8536 algs++; 8537 if (params->auth_alg & WPA_AUTH_ALG_LEAP) 8538 algs++; 8539 if (algs > 1) { 8540 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic " 8541 "selection"); 8542 goto skip_auth_type; 8543 } 8544 8545 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 8546 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 8547 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 8548 type = NL80211_AUTHTYPE_SHARED_KEY; 8549 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 8550 type = NL80211_AUTHTYPE_NETWORK_EAP; 8551 else if (params->auth_alg & WPA_AUTH_ALG_FT) 8552 type = NL80211_AUTHTYPE_FT; 8553 else 8554 goto nla_put_failure; 8555 8556 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 8557 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 8558 8559skip_auth_type: 8560 ret = nl80211_set_conn_keys(params, msg); 8561 if (ret) 8562 goto nla_put_failure; 8563 8564 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8565 msg = NULL; 8566 if (ret) { 8567 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d " 8568 "(%s)", ret, strerror(-ret)); 8569 goto nla_put_failure; 8570 } 8571 ret = 0; 8572 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully"); 8573 8574nla_put_failure: 8575 nlmsg_free(msg); 8576 return ret; 8577 8578} 8579 8580 8581static int wpa_driver_nl80211_connect( 8582 struct wpa_driver_nl80211_data *drv, 8583 struct wpa_driver_associate_params *params) 8584{ 8585 int ret = wpa_driver_nl80211_try_connect(drv, params); 8586 if (ret == -EALREADY) { 8587 /* 8588 * cfg80211 does not currently accept new connections if 8589 * we are already connected. As a workaround, force 8590 * disconnection and try again. 8591 */ 8592 wpa_printf(MSG_DEBUG, "nl80211: Explicitly " 8593 "disconnecting before reassociation " 8594 "attempt"); 8595 if (wpa_driver_nl80211_disconnect( 8596 drv, WLAN_REASON_PREV_AUTH_NOT_VALID)) 8597 return -1; 8598 ret = wpa_driver_nl80211_try_connect(drv, params); 8599 } 8600 return ret; 8601} 8602 8603 8604static int wpa_driver_nl80211_associate( 8605 void *priv, struct wpa_driver_associate_params *params) 8606{ 8607 struct i802_bss *bss = priv; 8608 struct wpa_driver_nl80211_data *drv = bss->drv; 8609 int ret; 8610 struct nl_msg *msg; 8611 8612 if (params->mode == IEEE80211_MODE_AP) 8613 return wpa_driver_nl80211_ap(drv, params); 8614 8615 if (params->mode == IEEE80211_MODE_IBSS) 8616 return wpa_driver_nl80211_ibss(drv, params); 8617 8618 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) { 8619 enum nl80211_iftype nlmode = params->p2p ? 8620 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 8621 8622 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0) 8623 return -1; 8624 return wpa_driver_nl80211_connect(drv, params); 8625 } 8626 8627 nl80211_mark_disconnected(drv); 8628 8629 msg = nlmsg_alloc(); 8630 if (!msg) 8631 return -1; 8632 8633 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)", 8634 drv->ifindex); 8635 nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE); 8636 8637 ret = nl80211_connect_common(drv, params, msg); 8638 if (ret) 8639 goto nla_put_failure; 8640 8641 if (params->prev_bssid) { 8642 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR, 8643 MAC2STR(params->prev_bssid)); 8644 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN, 8645 params->prev_bssid); 8646 } 8647 8648 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8649 msg = NULL; 8650 if (ret) { 8651 wpa_dbg(drv->ctx, MSG_DEBUG, 8652 "nl80211: MLME command failed (assoc): ret=%d (%s)", 8653 ret, strerror(-ret)); 8654 nl80211_dump_scan(drv); 8655 goto nla_put_failure; 8656 } 8657 ret = 0; 8658 wpa_printf(MSG_DEBUG, "nl80211: Association request send " 8659 "successfully"); 8660 8661nla_put_failure: 8662 nlmsg_free(msg); 8663 return ret; 8664} 8665 8666 8667static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv, 8668 int ifindex, enum nl80211_iftype mode) 8669{ 8670 struct nl_msg *msg; 8671 int ret = -ENOBUFS; 8672 8673 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)", 8674 ifindex, mode, nl80211_iftype_str(mode)); 8675 8676 msg = nlmsg_alloc(); 8677 if (!msg) 8678 return -ENOMEM; 8679 8680 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE); 8681 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 8682 goto nla_put_failure; 8683 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode); 8684 8685 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8686 msg = NULL; 8687 if (!ret) 8688 return 0; 8689nla_put_failure: 8690 nlmsg_free(msg); 8691 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:" 8692 " %d (%s)", ifindex, mode, ret, strerror(-ret)); 8693 return ret; 8694} 8695 8696 8697static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 8698 enum nl80211_iftype nlmode) 8699{ 8700 struct wpa_driver_nl80211_data *drv = bss->drv; 8701 int ret = -1; 8702 int i; 8703 int was_ap = is_ap_interface(drv->nlmode); 8704 int res; 8705 8706 res = nl80211_set_mode(drv, drv->ifindex, nlmode); 8707 if (res && nlmode == nl80211_get_ifmode(bss)) 8708 res = 0; 8709 8710 if (res == 0) { 8711 drv->nlmode = nlmode; 8712 ret = 0; 8713 goto done; 8714 } 8715 8716 if (res == -ENODEV) 8717 return -1; 8718 8719 if (nlmode == drv->nlmode) { 8720 wpa_printf(MSG_DEBUG, "nl80211: Interface already in " 8721 "requested mode - ignore error"); 8722 ret = 0; 8723 goto done; /* Already in the requested mode */ 8724 } 8725 8726 /* mac80211 doesn't allow mode changes while the device is up, so 8727 * take the device down, try to set the mode again, and bring the 8728 * device back up. 8729 */ 8730 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting " 8731 "interface down"); 8732 for (i = 0; i < 10; i++) { 8733 res = i802_set_iface_flags(bss, 0); 8734 if (res == -EACCES || res == -ENODEV) 8735 break; 8736 if (res == 0) { 8737 /* Try to set the mode again while the interface is 8738 * down */ 8739 ret = nl80211_set_mode(drv, drv->ifindex, nlmode); 8740 if (ret == -EACCES) 8741 break; 8742 res = i802_set_iface_flags(bss, 1); 8743 if (res && !ret) 8744 ret = -1; 8745 else if (ret != -EBUSY) 8746 break; 8747 } else 8748 wpa_printf(MSG_DEBUG, "nl80211: Failed to set " 8749 "interface down"); 8750 os_sleep(0, 100000); 8751 } 8752 8753 if (!ret) { 8754 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while " 8755 "interface is down"); 8756 drv->nlmode = nlmode; 8757 drv->ignore_if_down_event = 1; 8758 } 8759 8760done: 8761 if (ret) { 8762 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d " 8763 "from %d failed", nlmode, drv->nlmode); 8764 return ret; 8765 } 8766 8767 if (is_p2p_net_interface(nlmode)) 8768 nl80211_disable_11b_rates(drv, drv->ifindex, 1); 8769 else if (drv->disabled_11b_rates) 8770 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 8771 8772 if (is_ap_interface(nlmode)) { 8773 nl80211_mgmt_unsubscribe(bss, "start AP"); 8774 /* Setup additional AP mode functionality if needed */ 8775 if (nl80211_setup_ap(bss)) 8776 return -1; 8777 } else if (was_ap) { 8778 /* Remove additional AP mode functionality */ 8779 nl80211_teardown_ap(bss); 8780 } else { 8781 nl80211_mgmt_unsubscribe(bss, "mode change"); 8782 } 8783 8784 if (!bss->in_deinit && !is_ap_interface(nlmode) && 8785 nl80211_mgmt_subscribe_non_ap(bss) < 0) 8786 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action " 8787 "frame processing - ignore for now"); 8788 8789 return 0; 8790} 8791 8792 8793static int wpa_driver_nl80211_get_capa(void *priv, 8794 struct wpa_driver_capa *capa) 8795{ 8796 struct i802_bss *bss = priv; 8797 struct wpa_driver_nl80211_data *drv = bss->drv; 8798 if (!drv->has_capability) 8799 return -1; 8800 os_memcpy(capa, &drv->capa, sizeof(*capa)); 8801 if (drv->extended_capa && drv->extended_capa_mask) { 8802 capa->extended_capa = drv->extended_capa; 8803 capa->extended_capa_mask = drv->extended_capa_mask; 8804 capa->extended_capa_len = drv->extended_capa_len; 8805 } 8806 8807 if ((capa->flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) && 8808 !drv->allow_p2p_device) { 8809 wpa_printf(MSG_DEBUG, "nl80211: Do not indicate P2P_DEVICE support (p2p_device=1 driver param not specified)"); 8810 capa->flags &= ~WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 8811 } 8812 8813 return 0; 8814} 8815 8816 8817static int wpa_driver_nl80211_set_operstate(void *priv, int state) 8818{ 8819 struct i802_bss *bss = priv; 8820 struct wpa_driver_nl80211_data *drv = bss->drv; 8821 8822 wpa_printf(MSG_DEBUG, "nl80211: Set %s operstate %d->%d (%s)", 8823 bss->ifname, drv->operstate, state, 8824 state ? "UP" : "DORMANT"); 8825 drv->operstate = state; 8826 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1, 8827 state ? IF_OPER_UP : IF_OPER_DORMANT); 8828} 8829 8830 8831static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized) 8832{ 8833 struct i802_bss *bss = priv; 8834 struct wpa_driver_nl80211_data *drv = bss->drv; 8835 struct nl_msg *msg; 8836 struct nl80211_sta_flag_update upd; 8837 int ret = -ENOBUFS; 8838 8839 if (!drv->associated && is_zero_ether_addr(drv->bssid) && !authorized) { 8840 wpa_printf(MSG_DEBUG, "nl80211: Skip set_supp_port(unauthorized) while not associated"); 8841 return 0; 8842 } 8843 8844 wpa_printf(MSG_DEBUG, "nl80211: Set supplicant port %sauthorized for " 8845 MACSTR, authorized ? "" : "un", MAC2STR(drv->bssid)); 8846 8847 msg = nlmsg_alloc(); 8848 if (!msg) 8849 return -ENOMEM; 8850 8851 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8852 8853 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8854 if_nametoindex(bss->ifname)); 8855 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 8856 8857 os_memset(&upd, 0, sizeof(upd)); 8858 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED); 8859 if (authorized) 8860 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED); 8861 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 8862 8863 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8864 msg = NULL; 8865 if (!ret) 8866 return 0; 8867 nla_put_failure: 8868 nlmsg_free(msg); 8869 wpa_printf(MSG_DEBUG, "nl80211: Failed to set STA flag: %d (%s)", 8870 ret, strerror(-ret)); 8871 return ret; 8872} 8873 8874 8875/* Set kernel driver on given frequency (MHz) */ 8876static int i802_set_freq(void *priv, struct hostapd_freq_params *freq) 8877{ 8878 struct i802_bss *bss = priv; 8879 return wpa_driver_nl80211_set_freq(bss, freq); 8880} 8881 8882 8883static inline int min_int(int a, int b) 8884{ 8885 if (a < b) 8886 return a; 8887 return b; 8888} 8889 8890 8891static int get_key_handler(struct nl_msg *msg, void *arg) 8892{ 8893 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 8894 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 8895 8896 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 8897 genlmsg_attrlen(gnlh, 0), NULL); 8898 8899 /* 8900 * TODO: validate the key index and mac address! 8901 * Otherwise, there's a race condition as soon as 8902 * the kernel starts sending key notifications. 8903 */ 8904 8905 if (tb[NL80211_ATTR_KEY_SEQ]) 8906 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]), 8907 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6)); 8908 return NL_SKIP; 8909} 8910 8911 8912static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr, 8913 int idx, u8 *seq) 8914{ 8915 struct i802_bss *bss = priv; 8916 struct wpa_driver_nl80211_data *drv = bss->drv; 8917 struct nl_msg *msg; 8918 8919 msg = nlmsg_alloc(); 8920 if (!msg) 8921 return -ENOMEM; 8922 8923 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY); 8924 8925 if (addr) 8926 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8927 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx); 8928 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface)); 8929 8930 memset(seq, 0, 6); 8931 8932 return send_and_recv_msgs(drv, msg, get_key_handler, seq); 8933 nla_put_failure: 8934 nlmsg_free(msg); 8935 return -ENOBUFS; 8936} 8937 8938 8939static int i802_set_rts(void *priv, int rts) 8940{ 8941 struct i802_bss *bss = priv; 8942 struct wpa_driver_nl80211_data *drv = bss->drv; 8943 struct nl_msg *msg; 8944 int ret = -ENOBUFS; 8945 u32 val; 8946 8947 msg = nlmsg_alloc(); 8948 if (!msg) 8949 return -ENOMEM; 8950 8951 if (rts >= 2347) 8952 val = (u32) -1; 8953 else 8954 val = rts; 8955 8956 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8957 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8958 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val); 8959 8960 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8961 msg = NULL; 8962 if (!ret) 8963 return 0; 8964nla_put_failure: 8965 nlmsg_free(msg); 8966 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: " 8967 "%d (%s)", rts, ret, strerror(-ret)); 8968 return ret; 8969} 8970 8971 8972static int i802_set_frag(void *priv, int frag) 8973{ 8974 struct i802_bss *bss = priv; 8975 struct wpa_driver_nl80211_data *drv = bss->drv; 8976 struct nl_msg *msg; 8977 int ret = -ENOBUFS; 8978 u32 val; 8979 8980 msg = nlmsg_alloc(); 8981 if (!msg) 8982 return -ENOMEM; 8983 8984 if (frag >= 2346) 8985 val = (u32) -1; 8986 else 8987 val = frag; 8988 8989 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8990 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8991 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val); 8992 8993 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8994 msg = NULL; 8995 if (!ret) 8996 return 0; 8997nla_put_failure: 8998 nlmsg_free(msg); 8999 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold " 9000 "%d: %d (%s)", frag, ret, strerror(-ret)); 9001 return ret; 9002} 9003 9004 9005static int i802_flush(void *priv) 9006{ 9007 struct i802_bss *bss = priv; 9008 struct wpa_driver_nl80211_data *drv = bss->drv; 9009 struct nl_msg *msg; 9010 int res; 9011 9012 msg = nlmsg_alloc(); 9013 if (!msg) 9014 return -1; 9015 9016 wpa_printf(MSG_DEBUG, "nl80211: flush -> DEL_STATION %s (all)", 9017 bss->ifname); 9018 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 9019 9020 /* 9021 * XXX: FIX! this needs to flush all VLANs too 9022 */ 9023 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 9024 if_nametoindex(bss->ifname)); 9025 9026 res = send_and_recv_msgs(drv, msg, NULL, NULL); 9027 if (res) { 9028 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d " 9029 "(%s)", res, strerror(-res)); 9030 } 9031 return res; 9032 nla_put_failure: 9033 nlmsg_free(msg); 9034 return -ENOBUFS; 9035} 9036 9037 9038static int get_sta_handler(struct nl_msg *msg, void *arg) 9039{ 9040 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9041 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9042 struct hostap_sta_driver_data *data = arg; 9043 struct nlattr *stats[NL80211_STA_INFO_MAX + 1]; 9044 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = { 9045 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 }, 9046 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 }, 9047 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 }, 9048 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 }, 9049 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 }, 9050 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 }, 9051 }; 9052 9053 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9054 genlmsg_attrlen(gnlh, 0), NULL); 9055 9056 /* 9057 * TODO: validate the interface and mac address! 9058 * Otherwise, there's a race condition as soon as 9059 * the kernel starts sending station notifications. 9060 */ 9061 9062 if (!tb[NL80211_ATTR_STA_INFO]) { 9063 wpa_printf(MSG_DEBUG, "sta stats missing!"); 9064 return NL_SKIP; 9065 } 9066 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX, 9067 tb[NL80211_ATTR_STA_INFO], 9068 stats_policy)) { 9069 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!"); 9070 return NL_SKIP; 9071 } 9072 9073 if (stats[NL80211_STA_INFO_INACTIVE_TIME]) 9074 data->inactive_msec = 9075 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]); 9076 if (stats[NL80211_STA_INFO_RX_BYTES]) 9077 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]); 9078 if (stats[NL80211_STA_INFO_TX_BYTES]) 9079 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]); 9080 if (stats[NL80211_STA_INFO_RX_PACKETS]) 9081 data->rx_packets = 9082 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]); 9083 if (stats[NL80211_STA_INFO_TX_PACKETS]) 9084 data->tx_packets = 9085 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]); 9086 if (stats[NL80211_STA_INFO_TX_FAILED]) 9087 data->tx_retry_failed = 9088 nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]); 9089 9090 return NL_SKIP; 9091} 9092 9093static int i802_read_sta_data(struct i802_bss *bss, 9094 struct hostap_sta_driver_data *data, 9095 const u8 *addr) 9096{ 9097 struct wpa_driver_nl80211_data *drv = bss->drv; 9098 struct nl_msg *msg; 9099 9100 os_memset(data, 0, sizeof(*data)); 9101 msg = nlmsg_alloc(); 9102 if (!msg) 9103 return -ENOMEM; 9104 9105 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 9106 9107 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 9108 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 9109 9110 return send_and_recv_msgs(drv, msg, get_sta_handler, data); 9111 nla_put_failure: 9112 nlmsg_free(msg); 9113 return -ENOBUFS; 9114} 9115 9116 9117static int i802_set_tx_queue_params(void *priv, int queue, int aifs, 9118 int cw_min, int cw_max, int burst_time) 9119{ 9120 struct i802_bss *bss = priv; 9121 struct wpa_driver_nl80211_data *drv = bss->drv; 9122 struct nl_msg *msg; 9123 struct nlattr *txq, *params; 9124 9125 msg = nlmsg_alloc(); 9126 if (!msg) 9127 return -1; 9128 9129 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 9130 9131 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 9132 9133 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS); 9134 if (!txq) 9135 goto nla_put_failure; 9136 9137 /* We are only sending parameters for a single TXQ at a time */ 9138 params = nla_nest_start(msg, 1); 9139 if (!params) 9140 goto nla_put_failure; 9141 9142 switch (queue) { 9143 case 0: 9144 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO); 9145 break; 9146 case 1: 9147 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI); 9148 break; 9149 case 2: 9150 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE); 9151 break; 9152 case 3: 9153 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK); 9154 break; 9155 } 9156 /* Burst time is configured in units of 0.1 msec and TXOP parameter in 9157 * 32 usec, so need to convert the value here. */ 9158 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32); 9159 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min); 9160 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max); 9161 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs); 9162 9163 nla_nest_end(msg, params); 9164 9165 nla_nest_end(msg, txq); 9166 9167 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 9168 return 0; 9169 msg = NULL; 9170 nla_put_failure: 9171 nlmsg_free(msg); 9172 return -1; 9173} 9174 9175 9176static int i802_set_sta_vlan(struct i802_bss *bss, const u8 *addr, 9177 const char *ifname, int vlan_id) 9178{ 9179 struct wpa_driver_nl80211_data *drv = bss->drv; 9180 struct nl_msg *msg; 9181 int ret = -ENOBUFS; 9182 9183 msg = nlmsg_alloc(); 9184 if (!msg) 9185 return -ENOMEM; 9186 9187 wpa_printf(MSG_DEBUG, "nl80211: %s[%d]: set_sta_vlan(" MACSTR 9188 ", ifname=%s[%d], vlan_id=%d)", 9189 bss->ifname, if_nametoindex(bss->ifname), 9190 MAC2STR(addr), ifname, if_nametoindex(ifname), vlan_id); 9191 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 9192 9193 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 9194 if_nametoindex(bss->ifname)); 9195 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 9196 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN, 9197 if_nametoindex(ifname)); 9198 9199 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9200 msg = NULL; 9201 if (ret < 0) { 9202 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr=" 9203 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)", 9204 MAC2STR(addr), ifname, vlan_id, ret, 9205 strerror(-ret)); 9206 } 9207 nla_put_failure: 9208 nlmsg_free(msg); 9209 return ret; 9210} 9211 9212 9213static int i802_get_inact_sec(void *priv, const u8 *addr) 9214{ 9215 struct hostap_sta_driver_data data; 9216 int ret; 9217 9218 data.inactive_msec = (unsigned long) -1; 9219 ret = i802_read_sta_data(priv, &data, addr); 9220 if (ret || data.inactive_msec == (unsigned long) -1) 9221 return -1; 9222 return data.inactive_msec / 1000; 9223} 9224 9225 9226static int i802_sta_clear_stats(void *priv, const u8 *addr) 9227{ 9228#if 0 9229 /* TODO */ 9230#endif 9231 return 0; 9232} 9233 9234 9235static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, 9236 int reason) 9237{ 9238 struct i802_bss *bss = priv; 9239 struct wpa_driver_nl80211_data *drv = bss->drv; 9240 struct ieee80211_mgmt mgmt; 9241 9242 if (drv->device_ap_sme) 9243 return wpa_driver_nl80211_sta_remove(bss, addr); 9244 9245 memset(&mgmt, 0, sizeof(mgmt)); 9246 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 9247 WLAN_FC_STYPE_DEAUTH); 9248 memcpy(mgmt.da, addr, ETH_ALEN); 9249 memcpy(mgmt.sa, own_addr, ETH_ALEN); 9250 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 9251 mgmt.u.deauth.reason_code = host_to_le16(reason); 9252 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 9253 IEEE80211_HDRLEN + 9254 sizeof(mgmt.u.deauth), 0, 0, 0, 0, 9255 0); 9256} 9257 9258 9259static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr, 9260 int reason) 9261{ 9262 struct i802_bss *bss = priv; 9263 struct wpa_driver_nl80211_data *drv = bss->drv; 9264 struct ieee80211_mgmt mgmt; 9265 9266 if (drv->device_ap_sme) 9267 return wpa_driver_nl80211_sta_remove(bss, addr); 9268 9269 memset(&mgmt, 0, sizeof(mgmt)); 9270 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 9271 WLAN_FC_STYPE_DISASSOC); 9272 memcpy(mgmt.da, addr, ETH_ALEN); 9273 memcpy(mgmt.sa, own_addr, ETH_ALEN); 9274 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 9275 mgmt.u.disassoc.reason_code = host_to_le16(reason); 9276 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 9277 IEEE80211_HDRLEN + 9278 sizeof(mgmt.u.disassoc), 0, 0, 0, 0, 9279 0); 9280} 9281 9282 9283static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 9284{ 9285 int i; 9286 int *old; 9287 9288 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d", 9289 ifidx); 9290 for (i = 0; i < drv->num_if_indices; i++) { 9291 if (drv->if_indices[i] == 0) { 9292 drv->if_indices[i] = ifidx; 9293 return; 9294 } 9295 } 9296 9297 if (drv->if_indices != drv->default_if_indices) 9298 old = drv->if_indices; 9299 else 9300 old = NULL; 9301 9302 drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1, 9303 sizeof(int)); 9304 if (!drv->if_indices) { 9305 if (!old) 9306 drv->if_indices = drv->default_if_indices; 9307 else 9308 drv->if_indices = old; 9309 wpa_printf(MSG_ERROR, "Failed to reallocate memory for " 9310 "interfaces"); 9311 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx); 9312 return; 9313 } else if (!old) 9314 os_memcpy(drv->if_indices, drv->default_if_indices, 9315 sizeof(drv->default_if_indices)); 9316 drv->if_indices[drv->num_if_indices] = ifidx; 9317 drv->num_if_indices++; 9318} 9319 9320 9321static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 9322{ 9323 int i; 9324 9325 for (i = 0; i < drv->num_if_indices; i++) { 9326 if (drv->if_indices[i] == ifidx) { 9327 drv->if_indices[i] = 0; 9328 break; 9329 } 9330 } 9331} 9332 9333 9334static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 9335{ 9336 int i; 9337 9338 for (i = 0; i < drv->num_if_indices; i++) 9339 if (drv->if_indices[i] == ifidx) 9340 return 1; 9341 9342 return 0; 9343} 9344 9345 9346static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val, 9347 const char *bridge_ifname, char *ifname_wds) 9348{ 9349 struct i802_bss *bss = priv; 9350 struct wpa_driver_nl80211_data *drv = bss->drv; 9351 char name[IFNAMSIZ + 1]; 9352 9353 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid); 9354 if (ifname_wds) 9355 os_strlcpy(ifname_wds, name, IFNAMSIZ + 1); 9356 9357 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR 9358 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name); 9359 if (val) { 9360 if (!if_nametoindex(name)) { 9361 if (nl80211_create_iface(drv, name, 9362 NL80211_IFTYPE_AP_VLAN, 9363 bss->addr, 1, NULL, NULL, 0) < 9364 0) 9365 return -1; 9366 if (bridge_ifname && 9367 linux_br_add_if(drv->global->ioctl_sock, 9368 bridge_ifname, name) < 0) 9369 return -1; 9370 } 9371 if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) { 9372 wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA " 9373 "interface %s up", name); 9374 } 9375 return i802_set_sta_vlan(priv, addr, name, 0); 9376 } else { 9377 if (bridge_ifname) 9378 linux_br_del_if(drv->global->ioctl_sock, bridge_ifname, 9379 name); 9380 9381 i802_set_sta_vlan(priv, addr, bss->ifname, 0); 9382 return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN, 9383 name); 9384 } 9385} 9386 9387 9388static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx) 9389{ 9390 struct wpa_driver_nl80211_data *drv = eloop_ctx; 9391 struct sockaddr_ll lladdr; 9392 unsigned char buf[3000]; 9393 int len; 9394 socklen_t fromlen = sizeof(lladdr); 9395 9396 len = recvfrom(sock, buf, sizeof(buf), 0, 9397 (struct sockaddr *)&lladdr, &fromlen); 9398 if (len < 0) { 9399 wpa_printf(MSG_ERROR, "nl80211: EAPOL recv failed: %s", 9400 strerror(errno)); 9401 return; 9402 } 9403 9404 if (have_ifidx(drv, lladdr.sll_ifindex)) 9405 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len); 9406} 9407 9408 9409static int i802_check_bridge(struct wpa_driver_nl80211_data *drv, 9410 struct i802_bss *bss, 9411 const char *brname, const char *ifname) 9412{ 9413 int ifindex; 9414 char in_br[IFNAMSIZ]; 9415 9416 os_strlcpy(bss->brname, brname, IFNAMSIZ); 9417 ifindex = if_nametoindex(brname); 9418 if (ifindex == 0) { 9419 /* 9420 * Bridge was configured, but the bridge device does 9421 * not exist. Try to add it now. 9422 */ 9423 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) { 9424 wpa_printf(MSG_ERROR, "nl80211: Failed to add the " 9425 "bridge interface %s: %s", 9426 brname, strerror(errno)); 9427 return -1; 9428 } 9429 bss->added_bridge = 1; 9430 add_ifidx(drv, if_nametoindex(brname)); 9431 } 9432 9433 if (linux_br_get(in_br, ifname) == 0) { 9434 if (os_strcmp(in_br, brname) == 0) 9435 return 0; /* already in the bridge */ 9436 9437 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from " 9438 "bridge %s", ifname, in_br); 9439 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) < 9440 0) { 9441 wpa_printf(MSG_ERROR, "nl80211: Failed to " 9442 "remove interface %s from bridge " 9443 "%s: %s", 9444 ifname, brname, strerror(errno)); 9445 return -1; 9446 } 9447 } 9448 9449 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s", 9450 ifname, brname); 9451 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) { 9452 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s " 9453 "into bridge %s: %s", 9454 ifname, brname, strerror(errno)); 9455 return -1; 9456 } 9457 bss->added_if_into_bridge = 1; 9458 9459 return 0; 9460} 9461 9462 9463static void *i802_init(struct hostapd_data *hapd, 9464 struct wpa_init_params *params) 9465{ 9466 struct wpa_driver_nl80211_data *drv; 9467 struct i802_bss *bss; 9468 size_t i; 9469 char brname[IFNAMSIZ]; 9470 int ifindex, br_ifindex; 9471 int br_added = 0; 9472 9473 bss = wpa_driver_nl80211_drv_init(hapd, params->ifname, 9474 params->global_priv, 1, 9475 params->bssid); 9476 if (bss == NULL) 9477 return NULL; 9478 9479 drv = bss->drv; 9480 9481 if (linux_br_get(brname, params->ifname) == 0) { 9482 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s", 9483 params->ifname, brname); 9484 br_ifindex = if_nametoindex(brname); 9485 } else { 9486 brname[0] = '\0'; 9487 br_ifindex = 0; 9488 } 9489 9490 for (i = 0; i < params->num_bridge; i++) { 9491 if (params->bridge[i]) { 9492 ifindex = if_nametoindex(params->bridge[i]); 9493 if (ifindex) 9494 add_ifidx(drv, ifindex); 9495 if (ifindex == br_ifindex) 9496 br_added = 1; 9497 } 9498 } 9499 if (!br_added && br_ifindex && 9500 (params->num_bridge == 0 || !params->bridge[0])) 9501 add_ifidx(drv, br_ifindex); 9502 9503 /* start listening for EAPOL on the default AP interface */ 9504 add_ifidx(drv, drv->ifindex); 9505 9506 if (params->num_bridge && params->bridge[0] && 9507 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0) 9508 goto failed; 9509 9510 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE)); 9511 if (drv->eapol_sock < 0) { 9512 wpa_printf(MSG_ERROR, "nl80211: socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE) failed: %s", 9513 strerror(errno)); 9514 goto failed; 9515 } 9516 9517 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL)) 9518 { 9519 wpa_printf(MSG_INFO, "nl80211: Could not register read socket for eapol"); 9520 goto failed; 9521 } 9522 9523 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 9524 params->own_addr)) 9525 goto failed; 9526 9527 memcpy(bss->addr, params->own_addr, ETH_ALEN); 9528 9529 return bss; 9530 9531failed: 9532 wpa_driver_nl80211_deinit(bss); 9533 return NULL; 9534} 9535 9536 9537static void i802_deinit(void *priv) 9538{ 9539 struct i802_bss *bss = priv; 9540 wpa_driver_nl80211_deinit(bss); 9541} 9542 9543 9544static enum nl80211_iftype wpa_driver_nl80211_if_type( 9545 enum wpa_driver_if_type type) 9546{ 9547 switch (type) { 9548 case WPA_IF_STATION: 9549 return NL80211_IFTYPE_STATION; 9550 case WPA_IF_P2P_CLIENT: 9551 case WPA_IF_P2P_GROUP: 9552 return NL80211_IFTYPE_P2P_CLIENT; 9553 case WPA_IF_AP_VLAN: 9554 return NL80211_IFTYPE_AP_VLAN; 9555 case WPA_IF_AP_BSS: 9556 return NL80211_IFTYPE_AP; 9557 case WPA_IF_P2P_GO: 9558 return NL80211_IFTYPE_P2P_GO; 9559 case WPA_IF_P2P_DEVICE: 9560 return NL80211_IFTYPE_P2P_DEVICE; 9561 } 9562 return -1; 9563} 9564 9565 9566#ifdef CONFIG_P2P 9567 9568static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr) 9569{ 9570 struct wpa_driver_nl80211_data *drv; 9571 dl_list_for_each(drv, &global->interfaces, 9572 struct wpa_driver_nl80211_data, list) { 9573 if (os_memcmp(addr, drv->first_bss->addr, ETH_ALEN) == 0) 9574 return 1; 9575 } 9576 return 0; 9577} 9578 9579 9580static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv, 9581 u8 *new_addr) 9582{ 9583 unsigned int idx; 9584 9585 if (!drv->global) 9586 return -1; 9587 9588 os_memcpy(new_addr, drv->first_bss->addr, ETH_ALEN); 9589 for (idx = 0; idx < 64; idx++) { 9590 new_addr[0] = drv->first_bss->addr[0] | 0x02; 9591 new_addr[0] ^= idx << 2; 9592 if (!nl80211_addr_in_use(drv->global, new_addr)) 9593 break; 9594 } 9595 if (idx == 64) 9596 return -1; 9597 9598 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address " 9599 MACSTR, MAC2STR(new_addr)); 9600 9601 return 0; 9602} 9603 9604#endif /* CONFIG_P2P */ 9605 9606 9607struct wdev_info { 9608 u64 wdev_id; 9609 int wdev_id_set; 9610 u8 macaddr[ETH_ALEN]; 9611}; 9612 9613static int nl80211_wdev_handler(struct nl_msg *msg, void *arg) 9614{ 9615 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9616 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9617 struct wdev_info *wi = arg; 9618 9619 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9620 genlmsg_attrlen(gnlh, 0), NULL); 9621 if (tb[NL80211_ATTR_WDEV]) { 9622 wi->wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 9623 wi->wdev_id_set = 1; 9624 } 9625 9626 if (tb[NL80211_ATTR_MAC]) 9627 os_memcpy(wi->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 9628 ETH_ALEN); 9629 9630 return NL_SKIP; 9631} 9632 9633 9634static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type, 9635 const char *ifname, const u8 *addr, 9636 void *bss_ctx, void **drv_priv, 9637 char *force_ifname, u8 *if_addr, 9638 const char *bridge, int use_existing) 9639{ 9640 enum nl80211_iftype nlmode; 9641 struct i802_bss *bss = priv; 9642 struct wpa_driver_nl80211_data *drv = bss->drv; 9643 int ifidx; 9644 int added = 1; 9645 9646 if (addr) 9647 os_memcpy(if_addr, addr, ETH_ALEN); 9648 nlmode = wpa_driver_nl80211_if_type(type); 9649 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { 9650 struct wdev_info p2pdev_info; 9651 9652 os_memset(&p2pdev_info, 0, sizeof(p2pdev_info)); 9653 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 9654 0, nl80211_wdev_handler, 9655 &p2pdev_info, use_existing); 9656 if (!p2pdev_info.wdev_id_set || ifidx != 0) { 9657 wpa_printf(MSG_ERROR, "nl80211: Failed to create a P2P Device interface %s", 9658 ifname); 9659 return -1; 9660 } 9661 9662 drv->global->if_add_wdevid = p2pdev_info.wdev_id; 9663 drv->global->if_add_wdevid_set = p2pdev_info.wdev_id_set; 9664 if (!is_zero_ether_addr(p2pdev_info.macaddr)) 9665 os_memcpy(if_addr, p2pdev_info.macaddr, ETH_ALEN); 9666 wpa_printf(MSG_DEBUG, "nl80211: New P2P Device interface %s (0x%llx) created", 9667 ifname, 9668 (long long unsigned int) p2pdev_info.wdev_id); 9669 } else { 9670 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 9671 0, NULL, NULL, use_existing); 9672 if (use_existing && ifidx == -ENFILE) { 9673 added = 0; 9674 ifidx = if_nametoindex(ifname); 9675 } else if (ifidx < 0) { 9676 return -1; 9677 } 9678 } 9679 9680 if (!addr) { 9681 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 9682 os_memcpy(if_addr, bss->addr, ETH_ALEN); 9683 else if (linux_get_ifhwaddr(drv->global->ioctl_sock, 9684 bss->ifname, if_addr) < 0) { 9685 if (added) 9686 nl80211_remove_iface(drv, ifidx); 9687 return -1; 9688 } 9689 } 9690 9691#ifdef CONFIG_P2P 9692 if (!addr && 9693 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP || 9694 type == WPA_IF_P2P_GO)) { 9695 /* Enforce unique P2P Interface Address */ 9696 u8 new_addr[ETH_ALEN]; 9697 9698 if (linux_get_ifhwaddr(drv->global->ioctl_sock, ifname, 9699 new_addr) < 0) { 9700 nl80211_remove_iface(drv, ifidx); 9701 return -1; 9702 } 9703 if (nl80211_addr_in_use(drv->global, new_addr)) { 9704 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address " 9705 "for P2P group interface"); 9706 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) { 9707 nl80211_remove_iface(drv, ifidx); 9708 return -1; 9709 } 9710 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 9711 new_addr) < 0) { 9712 nl80211_remove_iface(drv, ifidx); 9713 return -1; 9714 } 9715 } 9716 os_memcpy(if_addr, new_addr, ETH_ALEN); 9717 } 9718#endif /* CONFIG_P2P */ 9719 9720 if (type == WPA_IF_AP_BSS) { 9721 struct i802_bss *new_bss = os_zalloc(sizeof(*new_bss)); 9722 if (new_bss == NULL) { 9723 if (added) 9724 nl80211_remove_iface(drv, ifidx); 9725 return -1; 9726 } 9727 9728 if (bridge && 9729 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) { 9730 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new " 9731 "interface %s to a bridge %s", 9732 ifname, bridge); 9733 if (added) 9734 nl80211_remove_iface(drv, ifidx); 9735 os_free(new_bss); 9736 return -1; 9737 } 9738 9739 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1)) 9740 { 9741 nl80211_remove_iface(drv, ifidx); 9742 os_free(new_bss); 9743 return -1; 9744 } 9745 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ); 9746 os_memcpy(new_bss->addr, if_addr, ETH_ALEN); 9747 new_bss->ifindex = ifidx; 9748 new_bss->drv = drv; 9749 new_bss->next = drv->first_bss->next; 9750 new_bss->freq = drv->first_bss->freq; 9751 new_bss->ctx = bss_ctx; 9752 new_bss->added_if = added; 9753 drv->first_bss->next = new_bss; 9754 if (drv_priv) 9755 *drv_priv = new_bss; 9756 nl80211_init_bss(new_bss); 9757 9758 /* Subscribe management frames for this WPA_IF_AP_BSS */ 9759 if (nl80211_setup_ap(new_bss)) 9760 return -1; 9761 } 9762 9763 if (drv->global) 9764 drv->global->if_add_ifindex = ifidx; 9765 9766 return 0; 9767} 9768 9769 9770static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 9771 enum wpa_driver_if_type type, 9772 const char *ifname) 9773{ 9774 struct wpa_driver_nl80211_data *drv = bss->drv; 9775 int ifindex = if_nametoindex(ifname); 9776 9777 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d added_if=%d", 9778 __func__, type, ifname, ifindex, bss->added_if); 9779 if (ifindex > 0 && (bss->added_if || bss->ifindex != ifindex)) 9780 nl80211_remove_iface(drv, ifindex); 9781 9782 if (type != WPA_IF_AP_BSS) 9783 return 0; 9784 9785 if (bss->added_if_into_bridge) { 9786 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 9787 bss->ifname) < 0) 9788 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 9789 "interface %s from bridge %s: %s", 9790 bss->ifname, bss->brname, strerror(errno)); 9791 } 9792 if (bss->added_bridge) { 9793 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 9794 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 9795 "bridge %s: %s", 9796 bss->brname, strerror(errno)); 9797 } 9798 9799 if (bss != drv->first_bss) { 9800 struct i802_bss *tbss; 9801 9802 wpa_printf(MSG_DEBUG, "nl80211: Not the first BSS - remove it"); 9803 for (tbss = drv->first_bss; tbss; tbss = tbss->next) { 9804 if (tbss->next == bss) { 9805 tbss->next = bss->next; 9806 /* Unsubscribe management frames */ 9807 nl80211_teardown_ap(bss); 9808 nl80211_destroy_bss(bss); 9809 os_free(bss); 9810 bss = NULL; 9811 break; 9812 } 9813 } 9814 if (bss) 9815 wpa_printf(MSG_INFO, "nl80211: %s - could not find " 9816 "BSS %p in the list", __func__, bss); 9817 } else { 9818 wpa_printf(MSG_DEBUG, "nl80211: First BSS - reassign context"); 9819 nl80211_teardown_ap(bss); 9820 if (!bss->added_if && !drv->first_bss->next) 9821 wpa_driver_nl80211_del_beacon(drv); 9822 nl80211_destroy_bss(bss); 9823 if (!bss->added_if) 9824 i802_set_iface_flags(bss, 0); 9825 if (drv->first_bss->next) { 9826 drv->first_bss = drv->first_bss->next; 9827 drv->ctx = drv->first_bss->ctx; 9828 os_free(bss); 9829 } else { 9830 wpa_printf(MSG_DEBUG, "nl80211: No second BSS to reassign context to"); 9831 } 9832 } 9833 9834 return 0; 9835} 9836 9837 9838static int cookie_handler(struct nl_msg *msg, void *arg) 9839{ 9840 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9841 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9842 u64 *cookie = arg; 9843 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9844 genlmsg_attrlen(gnlh, 0), NULL); 9845 if (tb[NL80211_ATTR_COOKIE]) 9846 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 9847 return NL_SKIP; 9848} 9849 9850 9851static int nl80211_send_frame_cmd(struct i802_bss *bss, 9852 unsigned int freq, unsigned int wait, 9853 const u8 *buf, size_t buf_len, 9854 u64 *cookie_out, int no_cck, int no_ack, 9855 int offchanok) 9856{ 9857 struct wpa_driver_nl80211_data *drv = bss->drv; 9858 struct nl_msg *msg; 9859 u64 cookie; 9860 int ret = -1; 9861 9862 msg = nlmsg_alloc(); 9863 if (!msg) 9864 return -1; 9865 9866 wpa_printf(MSG_MSGDUMP, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d " 9867 "no_ack=%d offchanok=%d", 9868 freq, wait, no_cck, no_ack, offchanok); 9869 wpa_hexdump(MSG_MSGDUMP, "CMD_FRAME", buf, buf_len); 9870 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME); 9871 9872 if (nl80211_set_iface_id(msg, bss) < 0) 9873 goto nla_put_failure; 9874 if (freq) 9875 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 9876 if (wait) 9877 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait); 9878 if (offchanok && (drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX)) 9879 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK); 9880 if (no_cck) 9881 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 9882 if (no_ack) 9883 NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK); 9884 9885 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf); 9886 9887 cookie = 0; 9888 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 9889 msg = NULL; 9890 if (ret) { 9891 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d " 9892 "(%s) (freq=%u wait=%u)", ret, strerror(-ret), 9893 freq, wait); 9894 goto nla_put_failure; 9895 } 9896 wpa_printf(MSG_MSGDUMP, "nl80211: Frame TX command accepted%s; " 9897 "cookie 0x%llx", no_ack ? " (no ACK)" : "", 9898 (long long unsigned int) cookie); 9899 9900 if (cookie_out) 9901 *cookie_out = no_ack ? (u64) -1 : cookie; 9902 9903nla_put_failure: 9904 nlmsg_free(msg); 9905 return ret; 9906} 9907 9908 9909static int wpa_driver_nl80211_send_action(struct i802_bss *bss, 9910 unsigned int freq, 9911 unsigned int wait_time, 9912 const u8 *dst, const u8 *src, 9913 const u8 *bssid, 9914 const u8 *data, size_t data_len, 9915 int no_cck) 9916{ 9917 struct wpa_driver_nl80211_data *drv = bss->drv; 9918 int ret = -1; 9919 u8 *buf; 9920 struct ieee80211_hdr *hdr; 9921 9922 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, " 9923 "freq=%u MHz wait=%d ms no_cck=%d)", 9924 drv->ifindex, freq, wait_time, no_cck); 9925 9926 buf = os_zalloc(24 + data_len); 9927 if (buf == NULL) 9928 return ret; 9929 os_memcpy(buf + 24, data, data_len); 9930 hdr = (struct ieee80211_hdr *) buf; 9931 hdr->frame_control = 9932 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION); 9933 os_memcpy(hdr->addr1, dst, ETH_ALEN); 9934 os_memcpy(hdr->addr2, src, ETH_ALEN); 9935 os_memcpy(hdr->addr3, bssid, ETH_ALEN); 9936 9937 if (is_ap_interface(drv->nlmode) && 9938 (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) || 9939 (int) freq == bss->freq || drv->device_ap_sme || 9940 !drv->use_monitor)) 9941 ret = wpa_driver_nl80211_send_mlme(bss, buf, 24 + data_len, 9942 0, freq, no_cck, 1, 9943 wait_time); 9944 else 9945 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf, 9946 24 + data_len, 9947 &drv->send_action_cookie, 9948 no_cck, 0, 1); 9949 9950 os_free(buf); 9951 return ret; 9952} 9953 9954 9955static void wpa_driver_nl80211_send_action_cancel_wait(void *priv) 9956{ 9957 struct i802_bss *bss = priv; 9958 struct wpa_driver_nl80211_data *drv = bss->drv; 9959 struct nl_msg *msg; 9960 int ret; 9961 9962 msg = nlmsg_alloc(); 9963 if (!msg) 9964 return; 9965 9966 wpa_printf(MSG_DEBUG, "nl80211: Cancel TX frame wait: cookie=0x%llx", 9967 (long long unsigned int) drv->send_action_cookie); 9968 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL); 9969 9970 if (nl80211_set_iface_id(msg, bss) < 0) 9971 goto nla_put_failure; 9972 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie); 9973 9974 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9975 msg = NULL; 9976 if (ret) 9977 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d " 9978 "(%s)", ret, strerror(-ret)); 9979 9980 nla_put_failure: 9981 nlmsg_free(msg); 9982} 9983 9984 9985static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq, 9986 unsigned int duration) 9987{ 9988 struct i802_bss *bss = priv; 9989 struct wpa_driver_nl80211_data *drv = bss->drv; 9990 struct nl_msg *msg; 9991 int ret; 9992 u64 cookie; 9993 9994 msg = nlmsg_alloc(); 9995 if (!msg) 9996 return -1; 9997 9998 nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL); 9999 10000 if (nl80211_set_iface_id(msg, bss) < 0) 10001 goto nla_put_failure; 10002 10003 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 10004 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); 10005 10006 cookie = 0; 10007 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 10008 msg = NULL; 10009 if (ret == 0) { 10010 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie " 10011 "0x%llx for freq=%u MHz duration=%u", 10012 (long long unsigned int) cookie, freq, duration); 10013 drv->remain_on_chan_cookie = cookie; 10014 drv->pending_remain_on_chan = 1; 10015 return 0; 10016 } 10017 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel " 10018 "(freq=%d duration=%u): %d (%s)", 10019 freq, duration, ret, strerror(-ret)); 10020nla_put_failure: 10021 nlmsg_free(msg); 10022 return -1; 10023} 10024 10025 10026static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv) 10027{ 10028 struct i802_bss *bss = priv; 10029 struct wpa_driver_nl80211_data *drv = bss->drv; 10030 struct nl_msg *msg; 10031 int ret; 10032 10033 if (!drv->pending_remain_on_chan) { 10034 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel " 10035 "to cancel"); 10036 return -1; 10037 } 10038 10039 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie " 10040 "0x%llx", 10041 (long long unsigned int) drv->remain_on_chan_cookie); 10042 10043 msg = nlmsg_alloc(); 10044 if (!msg) 10045 return -1; 10046 10047 nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL); 10048 10049 if (nl80211_set_iface_id(msg, bss) < 0) 10050 goto nla_put_failure; 10051 10052 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie); 10053 10054 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10055 msg = NULL; 10056 if (ret == 0) 10057 return 0; 10058 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: " 10059 "%d (%s)", ret, strerror(-ret)); 10060nla_put_failure: 10061 nlmsg_free(msg); 10062 return -1; 10063} 10064 10065 10066static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report) 10067{ 10068 struct wpa_driver_nl80211_data *drv = bss->drv; 10069 10070 if (!report) { 10071 if (bss->nl_preq && drv->device_ap_sme && 10072 is_ap_interface(drv->nlmode)) { 10073 /* 10074 * Do not disable Probe Request reporting that was 10075 * enabled in nl80211_setup_ap(). 10076 */ 10077 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of " 10078 "Probe Request reporting nl_preq=%p while " 10079 "in AP mode", bss->nl_preq); 10080 } else if (bss->nl_preq) { 10081 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request " 10082 "reporting nl_preq=%p", bss->nl_preq); 10083 nl80211_destroy_eloop_handle(&bss->nl_preq); 10084 } 10085 return 0; 10086 } 10087 10088 if (bss->nl_preq) { 10089 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting " 10090 "already on! nl_preq=%p", bss->nl_preq); 10091 return 0; 10092 } 10093 10094 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq"); 10095 if (bss->nl_preq == NULL) 10096 return -1; 10097 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request " 10098 "reporting nl_preq=%p", bss->nl_preq); 10099 10100 if (nl80211_register_frame(bss, bss->nl_preq, 10101 (WLAN_FC_TYPE_MGMT << 2) | 10102 (WLAN_FC_STYPE_PROBE_REQ << 4), 10103 NULL, 0) < 0) 10104 goto out_err; 10105 10106 nl80211_register_eloop_read(&bss->nl_preq, 10107 wpa_driver_nl80211_event_receive, 10108 bss->nl_cb); 10109 10110 return 0; 10111 10112 out_err: 10113 nl_destroy_handles(&bss->nl_preq); 10114 return -1; 10115} 10116 10117 10118static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 10119 int ifindex, int disabled) 10120{ 10121 struct nl_msg *msg; 10122 struct nlattr *bands, *band; 10123 int ret; 10124 10125 msg = nlmsg_alloc(); 10126 if (!msg) 10127 return -1; 10128 10129 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK); 10130 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 10131 10132 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES); 10133 if (!bands) 10134 goto nla_put_failure; 10135 10136 /* 10137 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything 10138 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS 10139 * rates. All 5 GHz rates are left enabled. 10140 */ 10141 band = nla_nest_start(msg, NL80211_BAND_2GHZ); 10142 if (!band) 10143 goto nla_put_failure; 10144 if (disabled) { 10145 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8, 10146 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 10147 } 10148 nla_nest_end(msg, band); 10149 10150 nla_nest_end(msg, bands); 10151 10152 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10153 msg = NULL; 10154 if (ret) { 10155 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d " 10156 "(%s)", ret, strerror(-ret)); 10157 } else 10158 drv->disabled_11b_rates = disabled; 10159 10160 return ret; 10161 10162nla_put_failure: 10163 nlmsg_free(msg); 10164 return -1; 10165} 10166 10167 10168static int wpa_driver_nl80211_deinit_ap(void *priv) 10169{ 10170 struct i802_bss *bss = priv; 10171 struct wpa_driver_nl80211_data *drv = bss->drv; 10172 if (!is_ap_interface(drv->nlmode)) 10173 return -1; 10174 wpa_driver_nl80211_del_beacon(drv); 10175 10176 /* 10177 * If the P2P GO interface was dynamically added, then it is 10178 * possible that the interface change to station is not possible. 10179 */ 10180 if (drv->nlmode == NL80211_IFTYPE_P2P_GO && bss->if_dynamic) 10181 return 0; 10182 10183 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 10184} 10185 10186 10187static int wpa_driver_nl80211_stop_ap(void *priv) 10188{ 10189 struct i802_bss *bss = priv; 10190 struct wpa_driver_nl80211_data *drv = bss->drv; 10191 if (!is_ap_interface(drv->nlmode)) 10192 return -1; 10193 wpa_driver_nl80211_del_beacon(drv); 10194 bss->beacon_set = 0; 10195 return 0; 10196} 10197 10198 10199static int wpa_driver_nl80211_deinit_p2p_cli(void *priv) 10200{ 10201 struct i802_bss *bss = priv; 10202 struct wpa_driver_nl80211_data *drv = bss->drv; 10203 if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT) 10204 return -1; 10205 10206 /* 10207 * If the P2P Client interface was dynamically added, then it is 10208 * possible that the interface change to station is not possible. 10209 */ 10210 if (bss->if_dynamic) 10211 return 0; 10212 10213 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 10214} 10215 10216 10217static void wpa_driver_nl80211_resume(void *priv) 10218{ 10219 struct i802_bss *bss = priv; 10220 10221 if (i802_set_iface_flags(bss, 1)) 10222 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on resume event"); 10223} 10224 10225 10226static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap, 10227 const u8 *ies, size_t ies_len) 10228{ 10229 struct i802_bss *bss = priv; 10230 struct wpa_driver_nl80211_data *drv = bss->drv; 10231 int ret; 10232 u8 *data, *pos; 10233 size_t data_len; 10234 const u8 *own_addr = bss->addr; 10235 10236 if (action != 1) { 10237 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action " 10238 "action %d", action); 10239 return -1; 10240 } 10241 10242 /* 10243 * Action frame payload: 10244 * Category[1] = 6 (Fast BSS Transition) 10245 * Action[1] = 1 (Fast BSS Transition Request) 10246 * STA Address 10247 * Target AP Address 10248 * FT IEs 10249 */ 10250 10251 data_len = 2 + 2 * ETH_ALEN + ies_len; 10252 data = os_malloc(data_len); 10253 if (data == NULL) 10254 return -1; 10255 pos = data; 10256 *pos++ = 0x06; /* FT Action category */ 10257 *pos++ = action; 10258 os_memcpy(pos, own_addr, ETH_ALEN); 10259 pos += ETH_ALEN; 10260 os_memcpy(pos, target_ap, ETH_ALEN); 10261 pos += ETH_ALEN; 10262 os_memcpy(pos, ies, ies_len); 10263 10264 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0, 10265 drv->bssid, own_addr, drv->bssid, 10266 data, data_len, 0); 10267 os_free(data); 10268 10269 return ret; 10270} 10271 10272 10273static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis) 10274{ 10275 struct i802_bss *bss = priv; 10276 struct wpa_driver_nl80211_data *drv = bss->drv; 10277 struct nl_msg *msg; 10278 struct nlattr *cqm; 10279 int ret = -1; 10280 10281 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d " 10282 "hysteresis=%d", threshold, hysteresis); 10283 10284 msg = nlmsg_alloc(); 10285 if (!msg) 10286 return -1; 10287 10288 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM); 10289 10290 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10291 10292 cqm = nla_nest_start(msg, NL80211_ATTR_CQM); 10293 if (cqm == NULL) 10294 goto nla_put_failure; 10295 10296 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THOLD, threshold); 10297 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_HYST, hysteresis); 10298 nla_nest_end(msg, cqm); 10299 10300 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10301 msg = NULL; 10302 10303nla_put_failure: 10304 nlmsg_free(msg); 10305 return ret; 10306} 10307 10308 10309static int get_channel_width(struct nl_msg *msg, void *arg) 10310{ 10311 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 10312 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 10313 struct wpa_signal_info *sig_change = arg; 10314 10315 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 10316 genlmsg_attrlen(gnlh, 0), NULL); 10317 10318 sig_change->center_frq1 = -1; 10319 sig_change->center_frq2 = -1; 10320 sig_change->chanwidth = CHAN_WIDTH_UNKNOWN; 10321 10322 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) { 10323 sig_change->chanwidth = convert2width( 10324 nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH])); 10325 if (tb[NL80211_ATTR_CENTER_FREQ1]) 10326 sig_change->center_frq1 = 10327 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); 10328 if (tb[NL80211_ATTR_CENTER_FREQ2]) 10329 sig_change->center_frq2 = 10330 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); 10331 } 10332 10333 return NL_SKIP; 10334} 10335 10336 10337static int nl80211_get_channel_width(struct wpa_driver_nl80211_data *drv, 10338 struct wpa_signal_info *sig) 10339{ 10340 struct nl_msg *msg; 10341 10342 msg = nlmsg_alloc(); 10343 if (!msg) 10344 return -ENOMEM; 10345 10346 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_INTERFACE); 10347 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10348 10349 return send_and_recv_msgs(drv, msg, get_channel_width, sig); 10350 10351nla_put_failure: 10352 nlmsg_free(msg); 10353 return -ENOBUFS; 10354} 10355 10356 10357static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si) 10358{ 10359 struct i802_bss *bss = priv; 10360 struct wpa_driver_nl80211_data *drv = bss->drv; 10361 int res; 10362 10363 os_memset(si, 0, sizeof(*si)); 10364 res = nl80211_get_link_signal(drv, si); 10365 if (res != 0) 10366 return res; 10367 10368 res = nl80211_get_channel_width(drv, si); 10369 if (res != 0) 10370 return res; 10371 10372 return nl80211_get_link_noise(drv, si); 10373} 10374 10375 10376static int wpa_driver_nl80211_shared_freq(void *priv) 10377{ 10378 struct i802_bss *bss = priv; 10379 struct wpa_driver_nl80211_data *drv = bss->drv; 10380 struct wpa_driver_nl80211_data *driver; 10381 int freq = 0; 10382 10383 /* 10384 * If the same PHY is in connected state with some other interface, 10385 * then retrieve the assoc freq. 10386 */ 10387 wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s", 10388 drv->phyname); 10389 10390 dl_list_for_each(driver, &drv->global->interfaces, 10391 struct wpa_driver_nl80211_data, list) { 10392 if (drv == driver || 10393 os_strcmp(drv->phyname, driver->phyname) != 0 || 10394 !driver->associated) 10395 continue; 10396 10397 wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s " 10398 MACSTR, 10399 driver->phyname, driver->first_bss->ifname, 10400 MAC2STR(driver->first_bss->addr)); 10401 if (is_ap_interface(driver->nlmode)) 10402 freq = driver->first_bss->freq; 10403 else 10404 freq = nl80211_get_assoc_freq(driver); 10405 wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d", 10406 drv->phyname, freq); 10407 } 10408 10409 if (!freq) 10410 wpa_printf(MSG_DEBUG, "nl80211: No shared interface for " 10411 "PHY (%s) in associated state", drv->phyname); 10412 10413 return freq; 10414} 10415 10416 10417static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len, 10418 int encrypt) 10419{ 10420 struct i802_bss *bss = priv; 10421 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0, 10422 0, 0, 0, 0); 10423} 10424 10425 10426static int nl80211_set_param(void *priv, const char *param) 10427{ 10428 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param); 10429 if (param == NULL) 10430 return 0; 10431 10432#ifdef CONFIG_P2P 10433 if (os_strstr(param, "use_p2p_group_interface=1")) { 10434 struct i802_bss *bss = priv; 10435 struct wpa_driver_nl80211_data *drv = bss->drv; 10436 10437 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 10438 "interface"); 10439 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 10440 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 10441 } 10442 10443 if (os_strstr(param, "p2p_device=1")) { 10444 struct i802_bss *bss = priv; 10445 struct wpa_driver_nl80211_data *drv = bss->drv; 10446 drv->allow_p2p_device = 1; 10447 } 10448#endif /* CONFIG_P2P */ 10449 10450 if (os_strstr(param, "use_monitor=1")) { 10451 struct i802_bss *bss = priv; 10452 struct wpa_driver_nl80211_data *drv = bss->drv; 10453 drv->use_monitor = 1; 10454 } 10455 10456 if (os_strstr(param, "force_connect_cmd=1")) { 10457 struct i802_bss *bss = priv; 10458 struct wpa_driver_nl80211_data *drv = bss->drv; 10459 drv->capa.flags &= ~WPA_DRIVER_FLAGS_SME; 10460 } 10461 10462 return 0; 10463} 10464 10465 10466static void * nl80211_global_init(void) 10467{ 10468 struct nl80211_global *global; 10469 struct netlink_config *cfg; 10470 10471 global = os_zalloc(sizeof(*global)); 10472 if (global == NULL) 10473 return NULL; 10474 global->ioctl_sock = -1; 10475 dl_list_init(&global->interfaces); 10476 global->if_add_ifindex = -1; 10477 10478 cfg = os_zalloc(sizeof(*cfg)); 10479 if (cfg == NULL) 10480 goto err; 10481 10482 cfg->ctx = global; 10483 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink; 10484 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink; 10485 global->netlink = netlink_init(cfg); 10486 if (global->netlink == NULL) { 10487 os_free(cfg); 10488 goto err; 10489 } 10490 10491 if (wpa_driver_nl80211_init_nl_global(global) < 0) 10492 goto err; 10493 10494 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0); 10495 if (global->ioctl_sock < 0) { 10496 wpa_printf(MSG_ERROR, "nl80211: socket(PF_INET,SOCK_DGRAM) failed: %s", 10497 strerror(errno)); 10498 goto err; 10499 } 10500 10501 return global; 10502 10503err: 10504 nl80211_global_deinit(global); 10505 return NULL; 10506} 10507 10508 10509static void nl80211_global_deinit(void *priv) 10510{ 10511 struct nl80211_global *global = priv; 10512 if (global == NULL) 10513 return; 10514 if (!dl_list_empty(&global->interfaces)) { 10515 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at " 10516 "nl80211_global_deinit", 10517 dl_list_len(&global->interfaces)); 10518 } 10519 10520 if (global->netlink) 10521 netlink_deinit(global->netlink); 10522 10523 nl_destroy_handles(&global->nl); 10524 10525 if (global->nl_event) 10526 nl80211_destroy_eloop_handle(&global->nl_event); 10527 10528 nl_cb_put(global->nl_cb); 10529 10530 if (global->ioctl_sock >= 0) 10531 close(global->ioctl_sock); 10532 10533 os_free(global); 10534} 10535 10536 10537static const char * nl80211_get_radio_name(void *priv) 10538{ 10539 struct i802_bss *bss = priv; 10540 struct wpa_driver_nl80211_data *drv = bss->drv; 10541 return drv->phyname; 10542} 10543 10544 10545static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid, 10546 const u8 *pmkid) 10547{ 10548 struct nl_msg *msg; 10549 10550 msg = nlmsg_alloc(); 10551 if (!msg) 10552 return -ENOMEM; 10553 10554 nl80211_cmd(bss->drv, msg, 0, cmd); 10555 10556 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 10557 if (pmkid) 10558 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid); 10559 if (bssid) 10560 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); 10561 10562 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 10563 nla_put_failure: 10564 nlmsg_free(msg); 10565 return -ENOBUFS; 10566} 10567 10568 10569static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 10570{ 10571 struct i802_bss *bss = priv; 10572 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid)); 10573 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid); 10574} 10575 10576 10577static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 10578{ 10579 struct i802_bss *bss = priv; 10580 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR, 10581 MAC2STR(bssid)); 10582 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid); 10583} 10584 10585 10586static int nl80211_flush_pmkid(void *priv) 10587{ 10588 struct i802_bss *bss = priv; 10589 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs"); 10590 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL); 10591} 10592 10593 10594static void clean_survey_results(struct survey_results *survey_results) 10595{ 10596 struct freq_survey *survey, *tmp; 10597 10598 if (dl_list_empty(&survey_results->survey_list)) 10599 return; 10600 10601 dl_list_for_each_safe(survey, tmp, &survey_results->survey_list, 10602 struct freq_survey, list) { 10603 dl_list_del(&survey->list); 10604 os_free(survey); 10605 } 10606} 10607 10608 10609static void add_survey(struct nlattr **sinfo, u32 ifidx, 10610 struct dl_list *survey_list) 10611{ 10612 struct freq_survey *survey; 10613 10614 survey = os_zalloc(sizeof(struct freq_survey)); 10615 if (!survey) 10616 return; 10617 10618 survey->ifidx = ifidx; 10619 survey->freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); 10620 survey->filled = 0; 10621 10622 if (sinfo[NL80211_SURVEY_INFO_NOISE]) { 10623 survey->nf = (int8_t) 10624 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 10625 survey->filled |= SURVEY_HAS_NF; 10626 } 10627 10628 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]) { 10629 survey->channel_time = 10630 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]); 10631 survey->filled |= SURVEY_HAS_CHAN_TIME; 10632 } 10633 10634 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]) { 10635 survey->channel_time_busy = 10636 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]); 10637 survey->filled |= SURVEY_HAS_CHAN_TIME_BUSY; 10638 } 10639 10640 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]) { 10641 survey->channel_time_rx = 10642 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]); 10643 survey->filled |= SURVEY_HAS_CHAN_TIME_RX; 10644 } 10645 10646 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]) { 10647 survey->channel_time_tx = 10648 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]); 10649 survey->filled |= SURVEY_HAS_CHAN_TIME_TX; 10650 } 10651 10652 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)", 10653 survey->freq, 10654 survey->nf, 10655 (unsigned long int) survey->channel_time, 10656 (unsigned long int) survey->channel_time_busy, 10657 (unsigned long int) survey->channel_time_tx, 10658 (unsigned long int) survey->channel_time_rx, 10659 survey->filled); 10660 10661 dl_list_add_tail(survey_list, &survey->list); 10662} 10663 10664 10665static int check_survey_ok(struct nlattr **sinfo, u32 surveyed_freq, 10666 unsigned int freq_filter) 10667{ 10668 if (!freq_filter) 10669 return 1; 10670 10671 return freq_filter == surveyed_freq; 10672} 10673 10674 10675static int survey_handler(struct nl_msg *msg, void *arg) 10676{ 10677 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 10678 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 10679 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 10680 struct survey_results *survey_results; 10681 u32 surveyed_freq = 0; 10682 u32 ifidx; 10683 10684 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 10685 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 10686 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 10687 }; 10688 10689 survey_results = (struct survey_results *) arg; 10690 10691 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 10692 genlmsg_attrlen(gnlh, 0), NULL); 10693 10694 if (!tb[NL80211_ATTR_IFINDEX]) 10695 return NL_SKIP; 10696 10697 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 10698 10699 if (!tb[NL80211_ATTR_SURVEY_INFO]) 10700 return NL_SKIP; 10701 10702 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 10703 tb[NL80211_ATTR_SURVEY_INFO], 10704 survey_policy)) 10705 return NL_SKIP; 10706 10707 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) { 10708 wpa_printf(MSG_ERROR, "nl80211: Invalid survey data"); 10709 return NL_SKIP; 10710 } 10711 10712 surveyed_freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); 10713 10714 if (!check_survey_ok(sinfo, surveyed_freq, 10715 survey_results->freq_filter)) 10716 return NL_SKIP; 10717 10718 if (survey_results->freq_filter && 10719 survey_results->freq_filter != surveyed_freq) { 10720 wpa_printf(MSG_EXCESSIVE, "nl80211: Ignoring survey data for freq %d MHz", 10721 surveyed_freq); 10722 return NL_SKIP; 10723 } 10724 10725 add_survey(sinfo, ifidx, &survey_results->survey_list); 10726 10727 return NL_SKIP; 10728} 10729 10730 10731static int wpa_driver_nl80211_get_survey(void *priv, unsigned int freq) 10732{ 10733 struct i802_bss *bss = priv; 10734 struct wpa_driver_nl80211_data *drv = bss->drv; 10735 struct nl_msg *msg; 10736 int err = -ENOBUFS; 10737 union wpa_event_data data; 10738 struct survey_results *survey_results; 10739 10740 os_memset(&data, 0, sizeof(data)); 10741 survey_results = &data.survey_results; 10742 10743 dl_list_init(&survey_results->survey_list); 10744 10745 msg = nlmsg_alloc(); 10746 if (!msg) 10747 goto nla_put_failure; 10748 10749 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 10750 10751 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10752 10753 if (freq) 10754 data.survey_results.freq_filter = freq; 10755 10756 do { 10757 wpa_printf(MSG_DEBUG, "nl80211: Fetch survey data"); 10758 err = send_and_recv_msgs(drv, msg, survey_handler, 10759 survey_results); 10760 } while (err > 0); 10761 10762 if (err) { 10763 wpa_printf(MSG_ERROR, "nl80211: Failed to process survey data"); 10764 goto out_clean; 10765 } 10766 10767 wpa_supplicant_event(drv->ctx, EVENT_SURVEY, &data); 10768 10769out_clean: 10770 clean_survey_results(survey_results); 10771nla_put_failure: 10772 return err; 10773} 10774 10775 10776static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck, 10777 const u8 *replay_ctr) 10778{ 10779 struct i802_bss *bss = priv; 10780 struct wpa_driver_nl80211_data *drv = bss->drv; 10781 struct nlattr *replay_nested; 10782 struct nl_msg *msg; 10783 10784 msg = nlmsg_alloc(); 10785 if (!msg) 10786 return; 10787 10788 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD); 10789 10790 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10791 10792 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); 10793 if (!replay_nested) 10794 goto nla_put_failure; 10795 10796 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek); 10797 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck); 10798 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN, 10799 replay_ctr); 10800 10801 nla_nest_end(msg, replay_nested); 10802 10803 send_and_recv_msgs(drv, msg, NULL, NULL); 10804 return; 10805 nla_put_failure: 10806 nlmsg_free(msg); 10807} 10808 10809 10810static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr, 10811 const u8 *addr, int qos) 10812{ 10813 /* send data frame to poll STA and check whether 10814 * this frame is ACKed */ 10815 struct { 10816 struct ieee80211_hdr hdr; 10817 u16 qos_ctl; 10818 } STRUCT_PACKED nulldata; 10819 size_t size; 10820 10821 /* Send data frame to poll STA and check whether this frame is ACKed */ 10822 10823 os_memset(&nulldata, 0, sizeof(nulldata)); 10824 10825 if (qos) { 10826 nulldata.hdr.frame_control = 10827 IEEE80211_FC(WLAN_FC_TYPE_DATA, 10828 WLAN_FC_STYPE_QOS_NULL); 10829 size = sizeof(nulldata); 10830 } else { 10831 nulldata.hdr.frame_control = 10832 IEEE80211_FC(WLAN_FC_TYPE_DATA, 10833 WLAN_FC_STYPE_NULLFUNC); 10834 size = sizeof(struct ieee80211_hdr); 10835 } 10836 10837 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS); 10838 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN); 10839 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 10840 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 10841 10842 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0, 0, 0, 10843 0, 0) < 0) 10844 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to " 10845 "send poll frame"); 10846} 10847 10848static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr, 10849 int qos) 10850{ 10851 struct i802_bss *bss = priv; 10852 struct wpa_driver_nl80211_data *drv = bss->drv; 10853 struct nl_msg *msg; 10854 10855 if (!drv->poll_command_supported) { 10856 nl80211_send_null_frame(bss, own_addr, addr, qos); 10857 return; 10858 } 10859 10860 msg = nlmsg_alloc(); 10861 if (!msg) 10862 return; 10863 10864 nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT); 10865 10866 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10867 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 10868 10869 send_and_recv_msgs(drv, msg, NULL, NULL); 10870 return; 10871 nla_put_failure: 10872 nlmsg_free(msg); 10873} 10874 10875 10876static int nl80211_set_power_save(struct i802_bss *bss, int enabled) 10877{ 10878 struct nl_msg *msg; 10879 10880 msg = nlmsg_alloc(); 10881 if (!msg) 10882 return -ENOMEM; 10883 10884 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE); 10885 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10886 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, 10887 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED); 10888 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 10889nla_put_failure: 10890 nlmsg_free(msg); 10891 return -ENOBUFS; 10892} 10893 10894 10895static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps, 10896 int ctwindow) 10897{ 10898 struct i802_bss *bss = priv; 10899 10900 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d " 10901 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow); 10902 10903 if (opp_ps != -1 || ctwindow != -1) { 10904#ifdef ANDROID_P2P 10905 wpa_driver_set_p2p_ps(priv, legacy_ps, opp_ps, ctwindow); 10906#else /* ANDROID_P2P */ 10907 return -1; /* Not yet supported */ 10908#endif /* ANDROID_P2P */ 10909 } 10910 10911 if (legacy_ps == -1) 10912 return 0; 10913 if (legacy_ps != 0 && legacy_ps != 1) 10914 return -1; /* Not yet supported */ 10915 10916 return nl80211_set_power_save(bss, legacy_ps); 10917} 10918 10919 10920static int nl80211_start_radar_detection(void *priv, 10921 struct hostapd_freq_params *freq) 10922{ 10923 struct i802_bss *bss = priv; 10924 struct wpa_driver_nl80211_data *drv = bss->drv; 10925 struct nl_msg *msg; 10926 int ret; 10927 10928 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)", 10929 freq->freq, freq->ht_enabled, freq->vht_enabled, 10930 freq->bandwidth, freq->center_freq1, freq->center_freq2); 10931 10932 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_RADAR)) { 10933 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support radar " 10934 "detection"); 10935 return -1; 10936 } 10937 10938 msg = nlmsg_alloc(); 10939 if (!msg) 10940 return -1; 10941 10942 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_RADAR_DETECT); 10943 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10944 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); 10945 10946 if (freq->vht_enabled) { 10947 switch (freq->bandwidth) { 10948 case 20: 10949 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 10950 NL80211_CHAN_WIDTH_20); 10951 break; 10952 case 40: 10953 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 10954 NL80211_CHAN_WIDTH_40); 10955 break; 10956 case 80: 10957 if (freq->center_freq2) 10958 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 10959 NL80211_CHAN_WIDTH_80P80); 10960 else 10961 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 10962 NL80211_CHAN_WIDTH_80); 10963 break; 10964 case 160: 10965 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 10966 NL80211_CHAN_WIDTH_160); 10967 break; 10968 default: 10969 return -1; 10970 } 10971 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); 10972 if (freq->center_freq2) 10973 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, 10974 freq->center_freq2); 10975 } else if (freq->ht_enabled) { 10976 switch (freq->sec_channel_offset) { 10977 case -1: 10978 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 10979 NL80211_CHAN_HT40MINUS); 10980 break; 10981 case 1: 10982 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 10983 NL80211_CHAN_HT40PLUS); 10984 break; 10985 default: 10986 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 10987 NL80211_CHAN_HT20); 10988 break; 10989 } 10990 } 10991 10992 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10993 if (ret == 0) 10994 return 0; 10995 wpa_printf(MSG_DEBUG, "nl80211: Failed to start radar detection: " 10996 "%d (%s)", ret, strerror(-ret)); 10997nla_put_failure: 10998 return -1; 10999} 11000 11001#ifdef CONFIG_TDLS 11002 11003static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code, 11004 u8 dialog_token, u16 status_code, 11005 const u8 *buf, size_t len) 11006{ 11007 struct i802_bss *bss = priv; 11008 struct wpa_driver_nl80211_data *drv = bss->drv; 11009 struct nl_msg *msg; 11010 11011 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 11012 return -EOPNOTSUPP; 11013 11014 if (!dst) 11015 return -EINVAL; 11016 11017 msg = nlmsg_alloc(); 11018 if (!msg) 11019 return -ENOMEM; 11020 11021 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT); 11022 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11023 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); 11024 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code); 11025 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token); 11026 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code); 11027 NLA_PUT(msg, NL80211_ATTR_IE, len, buf); 11028 11029 return send_and_recv_msgs(drv, msg, NULL, NULL); 11030 11031nla_put_failure: 11032 nlmsg_free(msg); 11033 return -ENOBUFS; 11034} 11035 11036 11037static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer) 11038{ 11039 struct i802_bss *bss = priv; 11040 struct wpa_driver_nl80211_data *drv = bss->drv; 11041 struct nl_msg *msg; 11042 enum nl80211_tdls_operation nl80211_oper; 11043 11044 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 11045 return -EOPNOTSUPP; 11046 11047 switch (oper) { 11048 case TDLS_DISCOVERY_REQ: 11049 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ; 11050 break; 11051 case TDLS_SETUP: 11052 nl80211_oper = NL80211_TDLS_SETUP; 11053 break; 11054 case TDLS_TEARDOWN: 11055 nl80211_oper = NL80211_TDLS_TEARDOWN; 11056 break; 11057 case TDLS_ENABLE_LINK: 11058 nl80211_oper = NL80211_TDLS_ENABLE_LINK; 11059 break; 11060 case TDLS_DISABLE_LINK: 11061 nl80211_oper = NL80211_TDLS_DISABLE_LINK; 11062 break; 11063 case TDLS_ENABLE: 11064 return 0; 11065 case TDLS_DISABLE: 11066 return 0; 11067 default: 11068 return -EINVAL; 11069 } 11070 11071 msg = nlmsg_alloc(); 11072 if (!msg) 11073 return -ENOMEM; 11074 11075 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER); 11076 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper); 11077 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11078 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer); 11079 11080 return send_and_recv_msgs(drv, msg, NULL, NULL); 11081 11082nla_put_failure: 11083 nlmsg_free(msg); 11084 return -ENOBUFS; 11085} 11086 11087#endif /* CONFIG TDLS */ 11088 11089 11090#ifdef ANDROID 11091 11092typedef struct android_wifi_priv_cmd { 11093 char *buf; 11094 int used_len; 11095 int total_len; 11096} android_wifi_priv_cmd; 11097 11098static int drv_errors = 0; 11099 11100static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv) 11101{ 11102 drv_errors++; 11103 if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) { 11104 drv_errors = 0; 11105 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED"); 11106 } 11107} 11108 11109 11110static int android_priv_cmd(struct i802_bss *bss, const char *cmd) 11111{ 11112 struct wpa_driver_nl80211_data *drv = bss->drv; 11113 struct ifreq ifr; 11114 android_wifi_priv_cmd priv_cmd; 11115 char buf[MAX_DRV_CMD_SIZE]; 11116 int ret; 11117 11118 os_memset(&ifr, 0, sizeof(ifr)); 11119 os_memset(&priv_cmd, 0, sizeof(priv_cmd)); 11120 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 11121 11122 os_memset(buf, 0, sizeof(buf)); 11123 os_strlcpy(buf, cmd, sizeof(buf)); 11124 11125 priv_cmd.buf = buf; 11126 priv_cmd.used_len = sizeof(buf); 11127 priv_cmd.total_len = sizeof(buf); 11128 ifr.ifr_data = &priv_cmd; 11129 11130 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 11131 if (ret < 0) { 11132 wpa_printf(MSG_ERROR, "%s: failed to issue private commands", 11133 __func__); 11134 wpa_driver_send_hang_msg(drv); 11135 return ret; 11136 } 11137 11138 drv_errors = 0; 11139 return 0; 11140} 11141 11142 11143static int android_pno_start(struct i802_bss *bss, 11144 struct wpa_driver_scan_params *params) 11145{ 11146 struct wpa_driver_nl80211_data *drv = bss->drv; 11147 struct ifreq ifr; 11148 android_wifi_priv_cmd priv_cmd; 11149 int ret = 0, i = 0, bp; 11150 char buf[WEXT_PNO_MAX_COMMAND_SIZE]; 11151 11152 bp = WEXT_PNOSETUP_HEADER_SIZE; 11153 os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp); 11154 buf[bp++] = WEXT_PNO_TLV_PREFIX; 11155 buf[bp++] = WEXT_PNO_TLV_VERSION; 11156 buf[bp++] = WEXT_PNO_TLV_SUBVERSION; 11157 buf[bp++] = WEXT_PNO_TLV_RESERVED; 11158 11159 while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) { 11160 /* Check that there is enough space needed for 1 more SSID, the 11161 * other sections and null termination */ 11162 if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN + 11163 WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf)) 11164 break; 11165 wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan", 11166 params->ssids[i].ssid, 11167 params->ssids[i].ssid_len); 11168 buf[bp++] = WEXT_PNO_SSID_SECTION; 11169 buf[bp++] = params->ssids[i].ssid_len; 11170 os_memcpy(&buf[bp], params->ssids[i].ssid, 11171 params->ssids[i].ssid_len); 11172 bp += params->ssids[i].ssid_len; 11173 i++; 11174 } 11175 11176 buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION; 11177 os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x", 11178 WEXT_PNO_SCAN_INTERVAL); 11179 bp += WEXT_PNO_SCAN_INTERVAL_LENGTH; 11180 11181 buf[bp++] = WEXT_PNO_REPEAT_SECTION; 11182 os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x", 11183 WEXT_PNO_REPEAT); 11184 bp += WEXT_PNO_REPEAT_LENGTH; 11185 11186 buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION; 11187 os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x", 11188 WEXT_PNO_MAX_REPEAT); 11189 bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1; 11190 11191 memset(&ifr, 0, sizeof(ifr)); 11192 memset(&priv_cmd, 0, sizeof(priv_cmd)); 11193 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 11194 11195 priv_cmd.buf = buf; 11196 priv_cmd.used_len = bp; 11197 priv_cmd.total_len = bp; 11198 ifr.ifr_data = &priv_cmd; 11199 11200 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 11201 11202 if (ret < 0) { 11203 wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d", 11204 ret); 11205 wpa_driver_send_hang_msg(drv); 11206 return ret; 11207 } 11208 11209 drv_errors = 0; 11210 11211 return android_priv_cmd(bss, "PNOFORCE 1"); 11212} 11213 11214 11215static int android_pno_stop(struct i802_bss *bss) 11216{ 11217 return android_priv_cmd(bss, "PNOFORCE 0"); 11218} 11219 11220#endif /* ANDROID */ 11221 11222 11223static int driver_nl80211_set_key(const char *ifname, void *priv, 11224 enum wpa_alg alg, const u8 *addr, 11225 int key_idx, int set_tx, 11226 const u8 *seq, size_t seq_len, 11227 const u8 *key, size_t key_len) 11228{ 11229 struct i802_bss *bss = priv; 11230 return wpa_driver_nl80211_set_key(ifname, bss, alg, addr, key_idx, 11231 set_tx, seq, seq_len, key, key_len); 11232} 11233 11234 11235static int driver_nl80211_scan2(void *priv, 11236 struct wpa_driver_scan_params *params) 11237{ 11238 struct i802_bss *bss = priv; 11239 return wpa_driver_nl80211_scan(bss, params); 11240} 11241 11242 11243static int driver_nl80211_deauthenticate(void *priv, const u8 *addr, 11244 int reason_code) 11245{ 11246 struct i802_bss *bss = priv; 11247 return wpa_driver_nl80211_deauthenticate(bss, addr, reason_code); 11248} 11249 11250 11251static int driver_nl80211_authenticate(void *priv, 11252 struct wpa_driver_auth_params *params) 11253{ 11254 struct i802_bss *bss = priv; 11255 return wpa_driver_nl80211_authenticate(bss, params); 11256} 11257 11258 11259static void driver_nl80211_deinit(void *priv) 11260{ 11261 struct i802_bss *bss = priv; 11262 wpa_driver_nl80211_deinit(bss); 11263} 11264 11265 11266static int driver_nl80211_if_remove(void *priv, enum wpa_driver_if_type type, 11267 const char *ifname) 11268{ 11269 struct i802_bss *bss = priv; 11270 return wpa_driver_nl80211_if_remove(bss, type, ifname); 11271} 11272 11273 11274static int driver_nl80211_send_mlme(void *priv, const u8 *data, 11275 size_t data_len, int noack) 11276{ 11277 struct i802_bss *bss = priv; 11278 return wpa_driver_nl80211_send_mlme(bss, data, data_len, noack, 11279 0, 0, 0, 0); 11280} 11281 11282 11283static int driver_nl80211_sta_remove(void *priv, const u8 *addr) 11284{ 11285 struct i802_bss *bss = priv; 11286 return wpa_driver_nl80211_sta_remove(bss, addr); 11287} 11288 11289 11290static int driver_nl80211_set_sta_vlan(void *priv, const u8 *addr, 11291 const char *ifname, int vlan_id) 11292{ 11293 struct i802_bss *bss = priv; 11294 return i802_set_sta_vlan(bss, addr, ifname, vlan_id); 11295} 11296 11297 11298static int driver_nl80211_read_sta_data(void *priv, 11299 struct hostap_sta_driver_data *data, 11300 const u8 *addr) 11301{ 11302 struct i802_bss *bss = priv; 11303 return i802_read_sta_data(bss, data, addr); 11304} 11305 11306 11307static int driver_nl80211_send_action(void *priv, unsigned int freq, 11308 unsigned int wait_time, 11309 const u8 *dst, const u8 *src, 11310 const u8 *bssid, 11311 const u8 *data, size_t data_len, 11312 int no_cck) 11313{ 11314 struct i802_bss *bss = priv; 11315 return wpa_driver_nl80211_send_action(bss, freq, wait_time, dst, src, 11316 bssid, data, data_len, no_cck); 11317} 11318 11319 11320static int driver_nl80211_probe_req_report(void *priv, int report) 11321{ 11322 struct i802_bss *bss = priv; 11323 return wpa_driver_nl80211_probe_req_report(bss, report); 11324} 11325 11326 11327static int wpa_driver_nl80211_update_ft_ies(void *priv, const u8 *md, 11328 const u8 *ies, size_t ies_len) 11329{ 11330 int ret; 11331 struct nl_msg *msg; 11332 struct i802_bss *bss = priv; 11333 struct wpa_driver_nl80211_data *drv = bss->drv; 11334 u16 mdid = WPA_GET_LE16(md); 11335 11336 msg = nlmsg_alloc(); 11337 if (!msg) 11338 return -ENOMEM; 11339 11340 wpa_printf(MSG_DEBUG, "nl80211: Updating FT IEs"); 11341 nl80211_cmd(drv, msg, 0, NL80211_CMD_UPDATE_FT_IES); 11342 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11343 NLA_PUT(msg, NL80211_ATTR_IE, ies_len, ies); 11344 NLA_PUT_U16(msg, NL80211_ATTR_MDID, mdid); 11345 11346 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 11347 if (ret) { 11348 wpa_printf(MSG_DEBUG, "nl80211: update_ft_ies failed " 11349 "err=%d (%s)", ret, strerror(-ret)); 11350 } 11351 11352 return ret; 11353 11354nla_put_failure: 11355 nlmsg_free(msg); 11356 return -ENOBUFS; 11357} 11358 11359 11360const u8 * wpa_driver_nl80211_get_macaddr(void *priv) 11361{ 11362 struct i802_bss *bss = priv; 11363 struct wpa_driver_nl80211_data *drv = bss->drv; 11364 11365 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) 11366 return NULL; 11367 11368 return bss->addr; 11369} 11370 11371 11372static const char * scan_state_str(enum scan_states scan_state) 11373{ 11374 switch (scan_state) { 11375 case NO_SCAN: 11376 return "NO_SCAN"; 11377 case SCAN_REQUESTED: 11378 return "SCAN_REQUESTED"; 11379 case SCAN_STARTED: 11380 return "SCAN_STARTED"; 11381 case SCAN_COMPLETED: 11382 return "SCAN_COMPLETED"; 11383 case SCAN_ABORTED: 11384 return "SCAN_ABORTED"; 11385 case SCHED_SCAN_STARTED: 11386 return "SCHED_SCAN_STARTED"; 11387 case SCHED_SCAN_STOPPED: 11388 return "SCHED_SCAN_STOPPED"; 11389 case SCHED_SCAN_RESULTS: 11390 return "SCHED_SCAN_RESULTS"; 11391 } 11392 11393 return "??"; 11394} 11395 11396 11397static int wpa_driver_nl80211_status(void *priv, char *buf, size_t buflen) 11398{ 11399 struct i802_bss *bss = priv; 11400 struct wpa_driver_nl80211_data *drv = bss->drv; 11401 int res; 11402 char *pos, *end; 11403 11404 pos = buf; 11405 end = buf + buflen; 11406 11407 res = os_snprintf(pos, end - pos, 11408 "ifindex=%d\n" 11409 "ifname=%s\n" 11410 "brname=%s\n" 11411 "addr=" MACSTR "\n" 11412 "freq=%d\n" 11413 "%s%s%s%s%s", 11414 bss->ifindex, 11415 bss->ifname, 11416 bss->brname, 11417 MAC2STR(bss->addr), 11418 bss->freq, 11419 bss->beacon_set ? "beacon_set=1\n" : "", 11420 bss->added_if_into_bridge ? 11421 "added_if_into_bridge=1\n" : "", 11422 bss->added_bridge ? "added_bridge=1\n" : "", 11423 bss->in_deinit ? "in_deinit=1\n" : "", 11424 bss->if_dynamic ? "if_dynamic=1\n" : ""); 11425 if (res < 0 || res >= end - pos) 11426 return pos - buf; 11427 pos += res; 11428 11429 if (bss->wdev_id_set) { 11430 res = os_snprintf(pos, end - pos, "wdev_id=%llu\n", 11431 (unsigned long long) bss->wdev_id); 11432 if (res < 0 || res >= end - pos) 11433 return pos - buf; 11434 pos += res; 11435 } 11436 11437 res = os_snprintf(pos, end - pos, 11438 "phyname=%s\n" 11439 "drv_ifindex=%d\n" 11440 "operstate=%d\n" 11441 "scan_state=%s\n" 11442 "auth_bssid=" MACSTR "\n" 11443 "auth_attempt_bssid=" MACSTR "\n" 11444 "bssid=" MACSTR "\n" 11445 "prev_bssid=" MACSTR "\n" 11446 "associated=%d\n" 11447 "assoc_freq=%u\n" 11448 "monitor_sock=%d\n" 11449 "monitor_ifidx=%d\n" 11450 "monitor_refcount=%d\n" 11451 "last_mgmt_freq=%u\n" 11452 "eapol_tx_sock=%d\n" 11453 "%s%s%s%s%s%s%s%s%s%s%s%s%s", 11454 drv->phyname, 11455 drv->ifindex, 11456 drv->operstate, 11457 scan_state_str(drv->scan_state), 11458 MAC2STR(drv->auth_bssid), 11459 MAC2STR(drv->auth_attempt_bssid), 11460 MAC2STR(drv->bssid), 11461 MAC2STR(drv->prev_bssid), 11462 drv->associated, 11463 drv->assoc_freq, 11464 drv->monitor_sock, 11465 drv->monitor_ifidx, 11466 drv->monitor_refcount, 11467 drv->last_mgmt_freq, 11468 drv->eapol_tx_sock, 11469 drv->ignore_if_down_event ? 11470 "ignore_if_down_event=1\n" : "", 11471 drv->scan_complete_events ? 11472 "scan_complete_events=1\n" : "", 11473 drv->disabled_11b_rates ? 11474 "disabled_11b_rates=1\n" : "", 11475 drv->pending_remain_on_chan ? 11476 "pending_remain_on_chan=1\n" : "", 11477 drv->in_interface_list ? "in_interface_list=1\n" : "", 11478 drv->device_ap_sme ? "device_ap_sme=1\n" : "", 11479 drv->poll_command_supported ? 11480 "poll_command_supported=1\n" : "", 11481 drv->data_tx_status ? "data_tx_status=1\n" : "", 11482 drv->scan_for_auth ? "scan_for_auth=1\n" : "", 11483 drv->retry_auth ? "retry_auth=1\n" : "", 11484 drv->use_monitor ? "use_monitor=1\n" : "", 11485 drv->ignore_next_local_disconnect ? 11486 "ignore_next_local_disconnect=1\n" : "", 11487 drv->allow_p2p_device ? "allow_p2p_device=1\n" : ""); 11488 if (res < 0 || res >= end - pos) 11489 return pos - buf; 11490 pos += res; 11491 11492 if (drv->has_capability) { 11493 res = os_snprintf(pos, end - pos, 11494 "capa.key_mgmt=0x%x\n" 11495 "capa.enc=0x%x\n" 11496 "capa.auth=0x%x\n" 11497 "capa.flags=0x%x\n" 11498 "capa.max_scan_ssids=%d\n" 11499 "capa.max_sched_scan_ssids=%d\n" 11500 "capa.sched_scan_supported=%d\n" 11501 "capa.max_match_sets=%d\n" 11502 "capa.max_remain_on_chan=%u\n" 11503 "capa.max_stations=%u\n" 11504 "capa.probe_resp_offloads=0x%x\n" 11505 "capa.max_acl_mac_addrs=%u\n" 11506 "capa.num_multichan_concurrent=%u\n", 11507 drv->capa.key_mgmt, 11508 drv->capa.enc, 11509 drv->capa.auth, 11510 drv->capa.flags, 11511 drv->capa.max_scan_ssids, 11512 drv->capa.max_sched_scan_ssids, 11513 drv->capa.sched_scan_supported, 11514 drv->capa.max_match_sets, 11515 drv->capa.max_remain_on_chan, 11516 drv->capa.max_stations, 11517 drv->capa.probe_resp_offloads, 11518 drv->capa.max_acl_mac_addrs, 11519 drv->capa.num_multichan_concurrent); 11520 if (res < 0 || res >= end - pos) 11521 return pos - buf; 11522 pos += res; 11523 } 11524 11525 return pos - buf; 11526} 11527 11528 11529static int set_beacon_data(struct nl_msg *msg, struct beacon_data *settings) 11530{ 11531 if (settings->head) 11532 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, 11533 settings->head_len, settings->head); 11534 11535 if (settings->tail) 11536 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, 11537 settings->tail_len, settings->tail); 11538 11539 if (settings->beacon_ies) 11540 NLA_PUT(msg, NL80211_ATTR_IE, 11541 settings->beacon_ies_len, settings->beacon_ies); 11542 11543 if (settings->proberesp_ies) 11544 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, 11545 settings->proberesp_ies_len, settings->proberesp_ies); 11546 11547 if (settings->assocresp_ies) 11548 NLA_PUT(msg, 11549 NL80211_ATTR_IE_ASSOC_RESP, 11550 settings->assocresp_ies_len, settings->assocresp_ies); 11551 11552 if (settings->probe_resp) 11553 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, 11554 settings->probe_resp_len, settings->probe_resp); 11555 11556 return 0; 11557 11558nla_put_failure: 11559 return -ENOBUFS; 11560} 11561 11562 11563static int nl80211_switch_channel(void *priv, struct csa_settings *settings) 11564{ 11565 struct nl_msg *msg; 11566 struct i802_bss *bss = priv; 11567 struct wpa_driver_nl80211_data *drv = bss->drv; 11568 struct nlattr *beacon_csa; 11569 int ret = -ENOBUFS; 11570 11571 wpa_printf(MSG_DEBUG, "nl80211: Channel switch request (cs_count=%u block_tx=%u freq=%d width=%d cf1=%d cf2=%d)", 11572 settings->cs_count, settings->block_tx, 11573 settings->freq_params.freq, settings->freq_params.bandwidth, 11574 settings->freq_params.center_freq1, 11575 settings->freq_params.center_freq2); 11576 11577 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_AP_CSA)) { 11578 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support channel switch command"); 11579 return -EOPNOTSUPP; 11580 } 11581 11582 if ((drv->nlmode != NL80211_IFTYPE_AP) && 11583 (drv->nlmode != NL80211_IFTYPE_P2P_GO)) 11584 return -EOPNOTSUPP; 11585 11586 /* check settings validity */ 11587 if (!settings->beacon_csa.tail || 11588 ((settings->beacon_csa.tail_len <= 11589 settings->counter_offset_beacon) || 11590 (settings->beacon_csa.tail[settings->counter_offset_beacon] != 11591 settings->cs_count))) 11592 return -EINVAL; 11593 11594 if (settings->beacon_csa.probe_resp && 11595 ((settings->beacon_csa.probe_resp_len <= 11596 settings->counter_offset_presp) || 11597 (settings->beacon_csa.probe_resp[settings->counter_offset_presp] != 11598 settings->cs_count))) 11599 return -EINVAL; 11600 11601 msg = nlmsg_alloc(); 11602 if (!msg) 11603 return -ENOMEM; 11604 11605 nl80211_cmd(drv, msg, 0, NL80211_CMD_CHANNEL_SWITCH); 11606 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11607 NLA_PUT_U32(msg, NL80211_ATTR_CH_SWITCH_COUNT, settings->cs_count); 11608 ret = nl80211_put_freq_params(msg, &settings->freq_params); 11609 if (ret) 11610 goto error; 11611 11612 if (settings->block_tx) 11613 NLA_PUT_FLAG(msg, NL80211_ATTR_CH_SWITCH_BLOCK_TX); 11614 11615 /* beacon_after params */ 11616 ret = set_beacon_data(msg, &settings->beacon_after); 11617 if (ret) 11618 goto error; 11619 11620 /* beacon_csa params */ 11621 beacon_csa = nla_nest_start(msg, NL80211_ATTR_CSA_IES); 11622 if (!beacon_csa) 11623 goto nla_put_failure; 11624 11625 ret = set_beacon_data(msg, &settings->beacon_csa); 11626 if (ret) 11627 goto error; 11628 11629 NLA_PUT_U16(msg, NL80211_ATTR_CSA_C_OFF_BEACON, 11630 settings->counter_offset_beacon); 11631 11632 if (settings->beacon_csa.probe_resp) 11633 NLA_PUT_U16(msg, NL80211_ATTR_CSA_C_OFF_PRESP, 11634 settings->counter_offset_presp); 11635 11636 nla_nest_end(msg, beacon_csa); 11637 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 11638 if (ret) { 11639 wpa_printf(MSG_DEBUG, "nl80211: switch_channel failed err=%d (%s)", 11640 ret, strerror(-ret)); 11641 } 11642 return ret; 11643 11644nla_put_failure: 11645 ret = -ENOBUFS; 11646error: 11647 nlmsg_free(msg); 11648 wpa_printf(MSG_DEBUG, "nl80211: Could not build channel switch request"); 11649 return ret; 11650} 11651 11652 11653static int nl80211_set_qos_map(void *priv, const u8 *qos_map_set, 11654 u8 qos_map_set_len) 11655{ 11656 struct i802_bss *bss = priv; 11657 struct wpa_driver_nl80211_data *drv = bss->drv; 11658 struct nl_msg *msg; 11659 int ret; 11660 11661 msg = nlmsg_alloc(); 11662 if (!msg) 11663 return -ENOMEM; 11664 11665 wpa_hexdump(MSG_DEBUG, "nl80211: Setting QoS Map", 11666 qos_map_set, qos_map_set_len); 11667 11668 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_QOS_MAP); 11669 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11670 NLA_PUT(msg, NL80211_ATTR_QOS_MAP, qos_map_set_len, qos_map_set); 11671 11672 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 11673 if (ret) 11674 wpa_printf(MSG_DEBUG, "nl80211: Setting QoS Map failed"); 11675 11676 return ret; 11677 11678nla_put_failure: 11679 nlmsg_free(msg); 11680 return -ENOBUFS; 11681} 11682 11683 11684const struct wpa_driver_ops wpa_driver_nl80211_ops = { 11685 .name = "nl80211", 11686 .desc = "Linux nl80211/cfg80211", 11687 .get_bssid = wpa_driver_nl80211_get_bssid, 11688 .get_ssid = wpa_driver_nl80211_get_ssid, 11689 .set_key = driver_nl80211_set_key, 11690 .scan2 = driver_nl80211_scan2, 11691 .sched_scan = wpa_driver_nl80211_sched_scan, 11692 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan, 11693 .get_scan_results2 = wpa_driver_nl80211_get_scan_results, 11694 .deauthenticate = driver_nl80211_deauthenticate, 11695 .authenticate = driver_nl80211_authenticate, 11696 .associate = wpa_driver_nl80211_associate, 11697 .global_init = nl80211_global_init, 11698 .global_deinit = nl80211_global_deinit, 11699 .init2 = wpa_driver_nl80211_init, 11700 .deinit = driver_nl80211_deinit, 11701 .get_capa = wpa_driver_nl80211_get_capa, 11702 .set_operstate = wpa_driver_nl80211_set_operstate, 11703 .set_supp_port = wpa_driver_nl80211_set_supp_port, 11704 .set_country = wpa_driver_nl80211_set_country, 11705 .get_country = wpa_driver_nl80211_get_country, 11706 .set_ap = wpa_driver_nl80211_set_ap, 11707 .set_acl = wpa_driver_nl80211_set_acl, 11708 .if_add = wpa_driver_nl80211_if_add, 11709 .if_remove = driver_nl80211_if_remove, 11710 .send_mlme = driver_nl80211_send_mlme, 11711 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data, 11712 .sta_add = wpa_driver_nl80211_sta_add, 11713 .sta_remove = driver_nl80211_sta_remove, 11714 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol, 11715 .sta_set_flags = wpa_driver_nl80211_sta_set_flags, 11716 .hapd_init = i802_init, 11717 .hapd_deinit = i802_deinit, 11718 .set_wds_sta = i802_set_wds_sta, 11719 .get_seqnum = i802_get_seqnum, 11720 .flush = i802_flush, 11721 .get_inact_sec = i802_get_inact_sec, 11722 .sta_clear_stats = i802_sta_clear_stats, 11723 .set_rts = i802_set_rts, 11724 .set_frag = i802_set_frag, 11725 .set_tx_queue_params = i802_set_tx_queue_params, 11726 .set_sta_vlan = driver_nl80211_set_sta_vlan, 11727 .sta_deauth = i802_sta_deauth, 11728 .sta_disassoc = i802_sta_disassoc, 11729 .read_sta_data = driver_nl80211_read_sta_data, 11730 .set_freq = i802_set_freq, 11731 .send_action = driver_nl80211_send_action, 11732 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait, 11733 .remain_on_channel = wpa_driver_nl80211_remain_on_channel, 11734 .cancel_remain_on_channel = 11735 wpa_driver_nl80211_cancel_remain_on_channel, 11736 .probe_req_report = driver_nl80211_probe_req_report, 11737 .deinit_ap = wpa_driver_nl80211_deinit_ap, 11738 .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli, 11739 .resume = wpa_driver_nl80211_resume, 11740 .send_ft_action = nl80211_send_ft_action, 11741 .signal_monitor = nl80211_signal_monitor, 11742 .signal_poll = nl80211_signal_poll, 11743 .send_frame = nl80211_send_frame, 11744 .shared_freq = wpa_driver_nl80211_shared_freq, 11745 .set_param = nl80211_set_param, 11746 .get_radio_name = nl80211_get_radio_name, 11747 .add_pmkid = nl80211_add_pmkid, 11748 .remove_pmkid = nl80211_remove_pmkid, 11749 .flush_pmkid = nl80211_flush_pmkid, 11750 .set_rekey_info = nl80211_set_rekey_info, 11751 .poll_client = nl80211_poll_client, 11752 .set_p2p_powersave = nl80211_set_p2p_powersave, 11753 .start_dfs_cac = nl80211_start_radar_detection, 11754 .stop_ap = wpa_driver_nl80211_stop_ap, 11755#ifdef CONFIG_TDLS 11756 .send_tdls_mgmt = nl80211_send_tdls_mgmt, 11757 .tdls_oper = nl80211_tdls_oper, 11758#endif /* CONFIG_TDLS */ 11759 .update_ft_ies = wpa_driver_nl80211_update_ft_ies, 11760 .get_mac_addr = wpa_driver_nl80211_get_macaddr, 11761 .get_survey = wpa_driver_nl80211_get_survey, 11762 .status = wpa_driver_nl80211_status, 11763 .switch_channel = nl80211_switch_channel, 11764#ifdef ANDROID_P2P 11765 .set_noa = wpa_driver_set_p2p_noa, 11766 .get_noa = wpa_driver_get_p2p_noa, 11767 .set_ap_wps_ie = wpa_driver_set_ap_wps_p2p_ie, 11768#endif /* ANDROID_P2P */ 11769#ifdef ANDROID 11770 .driver_cmd = wpa_driver_nl80211_driver_cmd, 11771#endif /* ANDROID */ 11772 .set_qos_map = nl80211_set_qos_map, 11773}; 11774