driver_nl80211.c revision 6cb1f6521a84955752c2b99100cf1df87637f86c
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 unsigned int test_use_roc_tx:1; 305 unsigned int ignore_deauth_event:1; 306 307 u64 remain_on_chan_cookie; 308 u64 send_action_cookie; 309 310 unsigned int last_mgmt_freq; 311 312 struct wpa_driver_scan_filter *filter_ssids; 313 size_t num_filter_ssids; 314 315 struct i802_bss *first_bss; 316 317 int eapol_tx_sock; 318 319 int eapol_sock; /* socket for EAPOL frames */ 320 321 int default_if_indices[16]; 322 int *if_indices; 323 int num_if_indices; 324 325 /* From failed authentication command */ 326 int auth_freq; 327 u8 auth_bssid_[ETH_ALEN]; 328 u8 auth_ssid[32]; 329 size_t auth_ssid_len; 330 int auth_alg; 331 u8 *auth_ie; 332 size_t auth_ie_len; 333 u8 auth_wep_key[4][16]; 334 size_t auth_wep_key_len[4]; 335 int auth_wep_tx_keyidx; 336 int auth_local_state_change; 337 int auth_p2p; 338}; 339 340 341static void wpa_driver_nl80211_deinit(struct i802_bss *bss); 342static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, 343 void *timeout_ctx); 344static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 345 enum nl80211_iftype nlmode); 346static int 347wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv, 348 const u8 *set_addr, int first); 349static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 350 const u8 *addr, int cmd, u16 reason_code, 351 int local_state_change); 352static void nl80211_remove_monitor_interface( 353 struct wpa_driver_nl80211_data *drv); 354static int nl80211_send_frame_cmd(struct i802_bss *bss, 355 unsigned int freq, unsigned int wait, 356 const u8 *buf, size_t buf_len, u64 *cookie, 357 int no_cck, int no_ack, int offchanok); 358static int nl80211_register_frame(struct i802_bss *bss, 359 struct nl_handle *hl_handle, 360 u16 type, const u8 *match, size_t match_len); 361static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, 362 int report); 363#ifdef ANDROID 364static int android_pno_start(struct i802_bss *bss, 365 struct wpa_driver_scan_params *params); 366static int android_pno_stop(struct i802_bss *bss); 367extern int wpa_driver_nl80211_driver_cmd(void *priv, char *cmd, char *buf, 368 size_t buf_len); 369#endif /* ANDROID */ 370#ifdef ANDROID_P2P 371int wpa_driver_set_p2p_noa(void *priv, u8 count, int start, int duration); 372int wpa_driver_get_p2p_noa(void *priv, u8 *buf, size_t len); 373int wpa_driver_set_p2p_ps(void *priv, int legacy_ps, int opp_ps, int ctwindow); 374int wpa_driver_set_ap_wps_p2p_ie(void *priv, const struct wpabuf *beacon, 375 const struct wpabuf *proberesp, 376 const struct wpabuf *assocresp); 377#endif /* ANDROID_P2P */ 378 379static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 380static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 381static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 382static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 383 enum wpa_driver_if_type type, 384 const char *ifname); 385 386static int wpa_driver_nl80211_set_freq(struct i802_bss *bss, 387 struct hostapd_freq_params *freq); 388static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 389 int ifindex, int disabled); 390 391static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv); 392static int wpa_driver_nl80211_authenticate_retry( 393 struct wpa_driver_nl80211_data *drv); 394 395static int i802_set_iface_flags(struct i802_bss *bss, int up); 396 397 398static const char * nl80211_command_to_string(enum nl80211_commands cmd) 399{ 400#define C2S(x) case x: return #x; 401 switch (cmd) { 402 C2S(NL80211_CMD_UNSPEC) 403 C2S(NL80211_CMD_GET_WIPHY) 404 C2S(NL80211_CMD_SET_WIPHY) 405 C2S(NL80211_CMD_NEW_WIPHY) 406 C2S(NL80211_CMD_DEL_WIPHY) 407 C2S(NL80211_CMD_GET_INTERFACE) 408 C2S(NL80211_CMD_SET_INTERFACE) 409 C2S(NL80211_CMD_NEW_INTERFACE) 410 C2S(NL80211_CMD_DEL_INTERFACE) 411 C2S(NL80211_CMD_GET_KEY) 412 C2S(NL80211_CMD_SET_KEY) 413 C2S(NL80211_CMD_NEW_KEY) 414 C2S(NL80211_CMD_DEL_KEY) 415 C2S(NL80211_CMD_GET_BEACON) 416 C2S(NL80211_CMD_SET_BEACON) 417 C2S(NL80211_CMD_START_AP) 418 C2S(NL80211_CMD_STOP_AP) 419 C2S(NL80211_CMD_GET_STATION) 420 C2S(NL80211_CMD_SET_STATION) 421 C2S(NL80211_CMD_NEW_STATION) 422 C2S(NL80211_CMD_DEL_STATION) 423 C2S(NL80211_CMD_GET_MPATH) 424 C2S(NL80211_CMD_SET_MPATH) 425 C2S(NL80211_CMD_NEW_MPATH) 426 C2S(NL80211_CMD_DEL_MPATH) 427 C2S(NL80211_CMD_SET_BSS) 428 C2S(NL80211_CMD_SET_REG) 429 C2S(NL80211_CMD_REQ_SET_REG) 430 C2S(NL80211_CMD_GET_MESH_CONFIG) 431 C2S(NL80211_CMD_SET_MESH_CONFIG) 432 C2S(NL80211_CMD_SET_MGMT_EXTRA_IE) 433 C2S(NL80211_CMD_GET_REG) 434 C2S(NL80211_CMD_GET_SCAN) 435 C2S(NL80211_CMD_TRIGGER_SCAN) 436 C2S(NL80211_CMD_NEW_SCAN_RESULTS) 437 C2S(NL80211_CMD_SCAN_ABORTED) 438 C2S(NL80211_CMD_REG_CHANGE) 439 C2S(NL80211_CMD_AUTHENTICATE) 440 C2S(NL80211_CMD_ASSOCIATE) 441 C2S(NL80211_CMD_DEAUTHENTICATE) 442 C2S(NL80211_CMD_DISASSOCIATE) 443 C2S(NL80211_CMD_MICHAEL_MIC_FAILURE) 444 C2S(NL80211_CMD_REG_BEACON_HINT) 445 C2S(NL80211_CMD_JOIN_IBSS) 446 C2S(NL80211_CMD_LEAVE_IBSS) 447 C2S(NL80211_CMD_TESTMODE) 448 C2S(NL80211_CMD_CONNECT) 449 C2S(NL80211_CMD_ROAM) 450 C2S(NL80211_CMD_DISCONNECT) 451 C2S(NL80211_CMD_SET_WIPHY_NETNS) 452 C2S(NL80211_CMD_GET_SURVEY) 453 C2S(NL80211_CMD_NEW_SURVEY_RESULTS) 454 C2S(NL80211_CMD_SET_PMKSA) 455 C2S(NL80211_CMD_DEL_PMKSA) 456 C2S(NL80211_CMD_FLUSH_PMKSA) 457 C2S(NL80211_CMD_REMAIN_ON_CHANNEL) 458 C2S(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL) 459 C2S(NL80211_CMD_SET_TX_BITRATE_MASK) 460 C2S(NL80211_CMD_REGISTER_FRAME) 461 C2S(NL80211_CMD_FRAME) 462 C2S(NL80211_CMD_FRAME_TX_STATUS) 463 C2S(NL80211_CMD_SET_POWER_SAVE) 464 C2S(NL80211_CMD_GET_POWER_SAVE) 465 C2S(NL80211_CMD_SET_CQM) 466 C2S(NL80211_CMD_NOTIFY_CQM) 467 C2S(NL80211_CMD_SET_CHANNEL) 468 C2S(NL80211_CMD_SET_WDS_PEER) 469 C2S(NL80211_CMD_FRAME_WAIT_CANCEL) 470 C2S(NL80211_CMD_JOIN_MESH) 471 C2S(NL80211_CMD_LEAVE_MESH) 472 C2S(NL80211_CMD_UNPROT_DEAUTHENTICATE) 473 C2S(NL80211_CMD_UNPROT_DISASSOCIATE) 474 C2S(NL80211_CMD_NEW_PEER_CANDIDATE) 475 C2S(NL80211_CMD_GET_WOWLAN) 476 C2S(NL80211_CMD_SET_WOWLAN) 477 C2S(NL80211_CMD_START_SCHED_SCAN) 478 C2S(NL80211_CMD_STOP_SCHED_SCAN) 479 C2S(NL80211_CMD_SCHED_SCAN_RESULTS) 480 C2S(NL80211_CMD_SCHED_SCAN_STOPPED) 481 C2S(NL80211_CMD_SET_REKEY_OFFLOAD) 482 C2S(NL80211_CMD_PMKSA_CANDIDATE) 483 C2S(NL80211_CMD_TDLS_OPER) 484 C2S(NL80211_CMD_TDLS_MGMT) 485 C2S(NL80211_CMD_UNEXPECTED_FRAME) 486 C2S(NL80211_CMD_PROBE_CLIENT) 487 C2S(NL80211_CMD_REGISTER_BEACONS) 488 C2S(NL80211_CMD_UNEXPECTED_4ADDR_FRAME) 489 C2S(NL80211_CMD_SET_NOACK_MAP) 490 C2S(NL80211_CMD_CH_SWITCH_NOTIFY) 491 C2S(NL80211_CMD_START_P2P_DEVICE) 492 C2S(NL80211_CMD_STOP_P2P_DEVICE) 493 C2S(NL80211_CMD_CONN_FAILED) 494 C2S(NL80211_CMD_SET_MCAST_RATE) 495 C2S(NL80211_CMD_SET_MAC_ACL) 496 C2S(NL80211_CMD_RADAR_DETECT) 497 C2S(NL80211_CMD_GET_PROTOCOL_FEATURES) 498 C2S(NL80211_CMD_UPDATE_FT_IES) 499 C2S(NL80211_CMD_FT_EVENT) 500 C2S(NL80211_CMD_CRIT_PROTOCOL_START) 501 C2S(NL80211_CMD_CRIT_PROTOCOL_STOP) 502 C2S(NL80211_CMD_GET_COALESCE) 503 C2S(NL80211_CMD_SET_COALESCE) 504 C2S(NL80211_CMD_CHANNEL_SWITCH) 505 C2S(NL80211_CMD_VENDOR) 506 C2S(NL80211_CMD_SET_QOS_MAP) 507 default: 508 return "NL80211_CMD_UNKNOWN"; 509 } 510#undef C2S 511} 512 513 514/* Converts nl80211_chan_width to a common format */ 515static enum chan_width convert2width(int width) 516{ 517 switch (width) { 518 case NL80211_CHAN_WIDTH_20_NOHT: 519 return CHAN_WIDTH_20_NOHT; 520 case NL80211_CHAN_WIDTH_20: 521 return CHAN_WIDTH_20; 522 case NL80211_CHAN_WIDTH_40: 523 return CHAN_WIDTH_40; 524 case NL80211_CHAN_WIDTH_80: 525 return CHAN_WIDTH_80; 526 case NL80211_CHAN_WIDTH_80P80: 527 return CHAN_WIDTH_80P80; 528 case NL80211_CHAN_WIDTH_160: 529 return CHAN_WIDTH_160; 530 } 531 return CHAN_WIDTH_UNKNOWN; 532} 533 534 535static int is_ap_interface(enum nl80211_iftype nlmode) 536{ 537 return (nlmode == NL80211_IFTYPE_AP || 538 nlmode == NL80211_IFTYPE_P2P_GO); 539} 540 541 542static int is_sta_interface(enum nl80211_iftype nlmode) 543{ 544 return (nlmode == NL80211_IFTYPE_STATION || 545 nlmode == NL80211_IFTYPE_P2P_CLIENT); 546} 547 548 549static int is_p2p_net_interface(enum nl80211_iftype nlmode) 550{ 551 return (nlmode == NL80211_IFTYPE_P2P_CLIENT || 552 nlmode == NL80211_IFTYPE_P2P_GO); 553} 554 555 556static void nl80211_mark_disconnected(struct wpa_driver_nl80211_data *drv) 557{ 558 if (drv->associated) 559 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); 560 drv->associated = 0; 561 os_memset(drv->bssid, 0, ETH_ALEN); 562} 563 564 565struct nl80211_bss_info_arg { 566 struct wpa_driver_nl80211_data *drv; 567 struct wpa_scan_results *res; 568 unsigned int assoc_freq; 569 u8 assoc_bssid[ETH_ALEN]; 570}; 571 572static int bss_info_handler(struct nl_msg *msg, void *arg); 573 574 575/* nl80211 code */ 576static int ack_handler(struct nl_msg *msg, void *arg) 577{ 578 int *err = arg; 579 *err = 0; 580 return NL_STOP; 581} 582 583static int finish_handler(struct nl_msg *msg, void *arg) 584{ 585 int *ret = arg; 586 *ret = 0; 587 return NL_SKIP; 588} 589 590static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err, 591 void *arg) 592{ 593 int *ret = arg; 594 *ret = err->error; 595 return NL_SKIP; 596} 597 598 599static int no_seq_check(struct nl_msg *msg, void *arg) 600{ 601 return NL_OK; 602} 603 604 605static int send_and_recv(struct nl80211_global *global, 606 struct nl_handle *nl_handle, struct nl_msg *msg, 607 int (*valid_handler)(struct nl_msg *, void *), 608 void *valid_data) 609{ 610 struct nl_cb *cb; 611 int err = -ENOMEM; 612 613 cb = nl_cb_clone(global->nl_cb); 614 if (!cb) 615 goto out; 616 617 err = nl_send_auto_complete(nl_handle, msg); 618 if (err < 0) 619 goto out; 620 621 err = 1; 622 623 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err); 624 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err); 625 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err); 626 627 if (valid_handler) 628 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, 629 valid_handler, valid_data); 630 631 while (err > 0) { 632 int res = nl_recvmsgs(nl_handle, cb); 633 if (res) { 634 wpa_printf(MSG_INFO, 635 "nl80211: %s->nl_recvmsgs failed: %d", 636 __func__, res); 637 } 638 } 639 out: 640 nl_cb_put(cb); 641 nlmsg_free(msg); 642 return err; 643} 644 645 646static int send_and_recv_msgs_global(struct nl80211_global *global, 647 struct nl_msg *msg, 648 int (*valid_handler)(struct nl_msg *, void *), 649 void *valid_data) 650{ 651 return send_and_recv(global, global->nl, msg, valid_handler, 652 valid_data); 653} 654 655 656static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv, 657 struct nl_msg *msg, 658 int (*valid_handler)(struct nl_msg *, void *), 659 void *valid_data) 660{ 661 return send_and_recv(drv->global, drv->global->nl, msg, 662 valid_handler, valid_data); 663} 664 665 666struct family_data { 667 const char *group; 668 int id; 669}; 670 671 672static int nl80211_set_iface_id(struct nl_msg *msg, struct i802_bss *bss) 673{ 674 if (bss->wdev_id_set) 675 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 676 else 677 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 678 return 0; 679 680nla_put_failure: 681 return -1; 682} 683 684 685static int family_handler(struct nl_msg *msg, void *arg) 686{ 687 struct family_data *res = arg; 688 struct nlattr *tb[CTRL_ATTR_MAX + 1]; 689 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 690 struct nlattr *mcgrp; 691 int i; 692 693 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 694 genlmsg_attrlen(gnlh, 0), NULL); 695 if (!tb[CTRL_ATTR_MCAST_GROUPS]) 696 return NL_SKIP; 697 698 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) { 699 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1]; 700 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp), 701 nla_len(mcgrp), NULL); 702 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] || 703 !tb2[CTRL_ATTR_MCAST_GRP_ID] || 704 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]), 705 res->group, 706 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0) 707 continue; 708 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]); 709 break; 710 }; 711 712 return NL_SKIP; 713} 714 715 716static int nl_get_multicast_id(struct nl80211_global *global, 717 const char *family, const char *group) 718{ 719 struct nl_msg *msg; 720 int ret = -1; 721 struct family_data res = { group, -ENOENT }; 722 723 msg = nlmsg_alloc(); 724 if (!msg) 725 return -ENOMEM; 726 genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"), 727 0, 0, CTRL_CMD_GETFAMILY, 0); 728 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family); 729 730 ret = send_and_recv_msgs_global(global, msg, family_handler, &res); 731 msg = NULL; 732 if (ret == 0) 733 ret = res.id; 734 735nla_put_failure: 736 nlmsg_free(msg); 737 return ret; 738} 739 740 741static void * nl80211_cmd(struct wpa_driver_nl80211_data *drv, 742 struct nl_msg *msg, int flags, uint8_t cmd) 743{ 744 return genlmsg_put(msg, 0, 0, drv->global->nl80211_id, 745 0, flags, cmd, 0); 746} 747 748 749struct wiphy_idx_data { 750 int wiphy_idx; 751 enum nl80211_iftype nlmode; 752 u8 *macaddr; 753}; 754 755 756static int netdev_info_handler(struct nl_msg *msg, void *arg) 757{ 758 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 759 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 760 struct wiphy_idx_data *info = arg; 761 762 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 763 genlmsg_attrlen(gnlh, 0), NULL); 764 765 if (tb[NL80211_ATTR_WIPHY]) 766 info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]); 767 768 if (tb[NL80211_ATTR_IFTYPE]) 769 info->nlmode = nla_get_u32(tb[NL80211_ATTR_IFTYPE]); 770 771 if (tb[NL80211_ATTR_MAC] && info->macaddr) 772 os_memcpy(info->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 773 ETH_ALEN); 774 775 return NL_SKIP; 776} 777 778 779static int nl80211_get_wiphy_index(struct i802_bss *bss) 780{ 781 struct nl_msg *msg; 782 struct wiphy_idx_data data = { 783 .wiphy_idx = -1, 784 .macaddr = NULL, 785 }; 786 787 msg = nlmsg_alloc(); 788 if (!msg) 789 return NL80211_IFTYPE_UNSPECIFIED; 790 791 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 792 793 if (nl80211_set_iface_id(msg, bss) < 0) 794 goto nla_put_failure; 795 796 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) 797 return data.wiphy_idx; 798 msg = NULL; 799nla_put_failure: 800 nlmsg_free(msg); 801 return -1; 802} 803 804 805static enum nl80211_iftype nl80211_get_ifmode(struct i802_bss *bss) 806{ 807 struct nl_msg *msg; 808 struct wiphy_idx_data data = { 809 .nlmode = NL80211_IFTYPE_UNSPECIFIED, 810 .macaddr = NULL, 811 }; 812 813 msg = nlmsg_alloc(); 814 if (!msg) 815 return -1; 816 817 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 818 819 if (nl80211_set_iface_id(msg, bss) < 0) 820 goto nla_put_failure; 821 822 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) 823 return data.nlmode; 824 msg = NULL; 825nla_put_failure: 826 nlmsg_free(msg); 827 return NL80211_IFTYPE_UNSPECIFIED; 828} 829 830 831static int nl80211_get_macaddr(struct i802_bss *bss) 832{ 833 struct nl_msg *msg; 834 struct wiphy_idx_data data = { 835 .macaddr = bss->addr, 836 }; 837 838 msg = nlmsg_alloc(); 839 if (!msg) 840 return NL80211_IFTYPE_UNSPECIFIED; 841 842 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 843 if (nl80211_set_iface_id(msg, bss) < 0) 844 goto nla_put_failure; 845 846 return send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data); 847 848nla_put_failure: 849 nlmsg_free(msg); 850 return NL80211_IFTYPE_UNSPECIFIED; 851} 852 853 854static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv, 855 struct nl80211_wiphy_data *w) 856{ 857 struct nl_msg *msg; 858 int ret = -1; 859 860 msg = nlmsg_alloc(); 861 if (!msg) 862 return -1; 863 864 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS); 865 866 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx); 867 868 ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL); 869 msg = NULL; 870 if (ret) { 871 wpa_printf(MSG_DEBUG, "nl80211: Register beacons command " 872 "failed: ret=%d (%s)", 873 ret, strerror(-ret)); 874 goto nla_put_failure; 875 } 876 ret = 0; 877nla_put_failure: 878 nlmsg_free(msg); 879 return ret; 880} 881 882 883static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle) 884{ 885 struct nl80211_wiphy_data *w = eloop_ctx; 886 int res; 887 888 wpa_printf(MSG_EXCESSIVE, "nl80211: Beacon event message available"); 889 890 res = nl_recvmsgs(handle, w->nl_cb); 891 if (res) { 892 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d", 893 __func__, res); 894 } 895} 896 897 898static int process_beacon_event(struct nl_msg *msg, void *arg) 899{ 900 struct nl80211_wiphy_data *w = arg; 901 struct wpa_driver_nl80211_data *drv; 902 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 903 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 904 union wpa_event_data event; 905 906 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 907 genlmsg_attrlen(gnlh, 0), NULL); 908 909 if (gnlh->cmd != NL80211_CMD_FRAME) { 910 wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)", 911 gnlh->cmd); 912 return NL_SKIP; 913 } 914 915 if (!tb[NL80211_ATTR_FRAME]) 916 return NL_SKIP; 917 918 dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data, 919 wiphy_list) { 920 os_memset(&event, 0, sizeof(event)); 921 event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]); 922 event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]); 923 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 924 } 925 926 return NL_SKIP; 927} 928 929 930static struct nl80211_wiphy_data * 931nl80211_get_wiphy_data_ap(struct i802_bss *bss) 932{ 933 static DEFINE_DL_LIST(nl80211_wiphys); 934 struct nl80211_wiphy_data *w; 935 int wiphy_idx, found = 0; 936 struct i802_bss *tmp_bss; 937 938 if (bss->wiphy_data != NULL) 939 return bss->wiphy_data; 940 941 wiphy_idx = nl80211_get_wiphy_index(bss); 942 943 dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) { 944 if (w->wiphy_idx == wiphy_idx) 945 goto add; 946 } 947 948 /* alloc new one */ 949 w = os_zalloc(sizeof(*w)); 950 if (w == NULL) 951 return NULL; 952 w->wiphy_idx = wiphy_idx; 953 dl_list_init(&w->bsss); 954 dl_list_init(&w->drvs); 955 956 w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 957 if (!w->nl_cb) { 958 os_free(w); 959 return NULL; 960 } 961 nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL); 962 nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_beacon_event, 963 w); 964 965 w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb, 966 "wiphy beacons"); 967 if (w->nl_beacons == NULL) { 968 os_free(w); 969 return NULL; 970 } 971 972 if (nl80211_register_beacons(bss->drv, w)) { 973 nl_destroy_handles(&w->nl_beacons); 974 os_free(w); 975 return NULL; 976 } 977 978 nl80211_register_eloop_read(&w->nl_beacons, nl80211_recv_beacons, w); 979 980 dl_list_add(&nl80211_wiphys, &w->list); 981 982add: 983 /* drv entry for this bss already there? */ 984 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { 985 if (tmp_bss->drv == bss->drv) { 986 found = 1; 987 break; 988 } 989 } 990 /* if not add it */ 991 if (!found) 992 dl_list_add(&w->drvs, &bss->drv->wiphy_list); 993 994 dl_list_add(&w->bsss, &bss->wiphy_list); 995 bss->wiphy_data = w; 996 return w; 997} 998 999 1000static void nl80211_put_wiphy_data_ap(struct i802_bss *bss) 1001{ 1002 struct nl80211_wiphy_data *w = bss->wiphy_data; 1003 struct i802_bss *tmp_bss; 1004 int found = 0; 1005 1006 if (w == NULL) 1007 return; 1008 bss->wiphy_data = NULL; 1009 dl_list_del(&bss->wiphy_list); 1010 1011 /* still any for this drv present? */ 1012 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { 1013 if (tmp_bss->drv == bss->drv) { 1014 found = 1; 1015 break; 1016 } 1017 } 1018 /* if not remove it */ 1019 if (!found) 1020 dl_list_del(&bss->drv->wiphy_list); 1021 1022 if (!dl_list_empty(&w->bsss)) 1023 return; 1024 1025 nl80211_destroy_eloop_handle(&w->nl_beacons); 1026 1027 nl_cb_put(w->nl_cb); 1028 dl_list_del(&w->list); 1029 os_free(w); 1030} 1031 1032 1033static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid) 1034{ 1035 struct i802_bss *bss = priv; 1036 struct wpa_driver_nl80211_data *drv = bss->drv; 1037 if (!drv->associated) 1038 return -1; 1039 os_memcpy(bssid, drv->bssid, ETH_ALEN); 1040 return 0; 1041} 1042 1043 1044static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid) 1045{ 1046 struct i802_bss *bss = priv; 1047 struct wpa_driver_nl80211_data *drv = bss->drv; 1048 if (!drv->associated) 1049 return -1; 1050 os_memcpy(ssid, drv->ssid, drv->ssid_len); 1051 return drv->ssid_len; 1052} 1053 1054 1055static void wpa_driver_nl80211_event_newlink( 1056 struct wpa_driver_nl80211_data *drv, char *ifname) 1057{ 1058 union wpa_event_data event; 1059 1060 if (os_strcmp(drv->first_bss->ifname, ifname) == 0) { 1061 if (if_nametoindex(drv->first_bss->ifname) == 0) { 1062 wpa_printf(MSG_DEBUG, "nl80211: Interface %s does not exist - ignore RTM_NEWLINK", 1063 drv->first_bss->ifname); 1064 return; 1065 } 1066 if (!drv->if_removed) 1067 return; 1068 wpa_printf(MSG_DEBUG, "nl80211: Mark if_removed=0 for %s based on RTM_NEWLINK event", 1069 drv->first_bss->ifname); 1070 drv->if_removed = 0; 1071 } 1072 1073 os_memset(&event, 0, sizeof(event)); 1074 os_strlcpy(event.interface_status.ifname, ifname, 1075 sizeof(event.interface_status.ifname)); 1076 event.interface_status.ievent = EVENT_INTERFACE_ADDED; 1077 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); 1078} 1079 1080 1081static void wpa_driver_nl80211_event_dellink( 1082 struct wpa_driver_nl80211_data *drv, char *ifname) 1083{ 1084 union wpa_event_data event; 1085 1086 if (os_strcmp(drv->first_bss->ifname, ifname) == 0) { 1087 if (drv->if_removed) { 1088 wpa_printf(MSG_DEBUG, "nl80211: if_removed already set - ignore RTM_DELLINK event for %s", 1089 ifname); 1090 return; 1091 } 1092 wpa_printf(MSG_DEBUG, "RTM_DELLINK: Interface '%s' removed - mark if_removed=1", 1093 ifname); 1094 drv->if_removed = 1; 1095 } else { 1096 wpa_printf(MSG_DEBUG, "RTM_DELLINK: Interface '%s' removed", 1097 ifname); 1098 } 1099 1100 os_memset(&event, 0, sizeof(event)); 1101 os_strlcpy(event.interface_status.ifname, ifname, 1102 sizeof(event.interface_status.ifname)); 1103 event.interface_status.ievent = EVENT_INTERFACE_REMOVED; 1104 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); 1105} 1106 1107 1108static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv, 1109 u8 *buf, size_t len) 1110{ 1111 int attrlen, rta_len; 1112 struct rtattr *attr; 1113 1114 attrlen = len; 1115 attr = (struct rtattr *) buf; 1116 1117 rta_len = RTA_ALIGN(sizeof(struct rtattr)); 1118 while (RTA_OK(attr, attrlen)) { 1119 if (attr->rta_type == IFLA_IFNAME) { 1120 if (os_strcmp(((char *) attr) + rta_len, 1121 drv->first_bss->ifname) == 0) 1122 return 1; 1123 else 1124 break; 1125 } 1126 attr = RTA_NEXT(attr, attrlen); 1127 } 1128 1129 return 0; 1130} 1131 1132 1133static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv, 1134 int ifindex, u8 *buf, size_t len) 1135{ 1136 if (drv->ifindex == ifindex) 1137 return 1; 1138 1139 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) { 1140 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed " 1141 "interface"); 1142 wpa_driver_nl80211_finish_drv_init(drv, NULL, 0); 1143 return 1; 1144 } 1145 1146 return 0; 1147} 1148 1149 1150static struct wpa_driver_nl80211_data * 1151nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len) 1152{ 1153 struct wpa_driver_nl80211_data *drv; 1154 dl_list_for_each(drv, &global->interfaces, 1155 struct wpa_driver_nl80211_data, list) { 1156 if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) || 1157 have_ifidx(drv, idx)) 1158 return drv; 1159 } 1160 return NULL; 1161} 1162 1163 1164static void wpa_driver_nl80211_event_rtm_newlink(void *ctx, 1165 struct ifinfomsg *ifi, 1166 u8 *buf, size_t len) 1167{ 1168 struct nl80211_global *global = ctx; 1169 struct wpa_driver_nl80211_data *drv; 1170 int attrlen; 1171 struct rtattr *attr; 1172 u32 brid = 0; 1173 char namebuf[IFNAMSIZ]; 1174 char ifname[IFNAMSIZ + 1]; 1175 char extra[100], *pos, *end; 1176 1177 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); 1178 if (!drv) { 1179 wpa_printf(MSG_DEBUG, "nl80211: Ignore RTM_NEWLINK event for foreign ifindex %d", 1180 ifi->ifi_index); 1181 return; 1182 } 1183 1184 extra[0] = '\0'; 1185 pos = extra; 1186 end = pos + sizeof(extra); 1187 ifname[0] = '\0'; 1188 1189 attrlen = len; 1190 attr = (struct rtattr *) buf; 1191 while (RTA_OK(attr, attrlen)) { 1192 switch (attr->rta_type) { 1193 case IFLA_IFNAME: 1194 if (RTA_PAYLOAD(attr) >= IFNAMSIZ) 1195 break; 1196 os_memcpy(ifname, RTA_DATA(attr), RTA_PAYLOAD(attr)); 1197 ifname[RTA_PAYLOAD(attr)] = '\0'; 1198 break; 1199 case IFLA_MASTER: 1200 brid = nla_get_u32((struct nlattr *) attr); 1201 pos += os_snprintf(pos, end - pos, " master=%u", brid); 1202 break; 1203 case IFLA_WIRELESS: 1204 pos += os_snprintf(pos, end - pos, " wext"); 1205 break; 1206 case IFLA_OPERSTATE: 1207 pos += os_snprintf(pos, end - pos, " operstate=%u", 1208 nla_get_u32((struct nlattr *) attr)); 1209 break; 1210 case IFLA_LINKMODE: 1211 pos += os_snprintf(pos, end - pos, " linkmode=%u", 1212 nla_get_u32((struct nlattr *) attr)); 1213 break; 1214 } 1215 attr = RTA_NEXT(attr, attrlen); 1216 } 1217 extra[sizeof(extra) - 1] = '\0'; 1218 1219 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: ifi_index=%d ifname=%s%s ifi_flags=0x%x (%s%s%s%s)", 1220 ifi->ifi_index, ifname, extra, ifi->ifi_flags, 1221 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "", 1222 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "", 1223 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "", 1224 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : ""); 1225 1226 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) { 1227 if (if_indextoname(ifi->ifi_index, namebuf) && 1228 linux_iface_up(drv->global->ioctl_sock, 1229 drv->first_bss->ifname) > 0) { 1230 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " 1231 "event since interface %s is up", namebuf); 1232 return; 1233 } 1234 wpa_printf(MSG_DEBUG, "nl80211: Interface down"); 1235 if (drv->ignore_if_down_event) { 1236 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " 1237 "event generated by mode change"); 1238 drv->ignore_if_down_event = 0; 1239 } else { 1240 drv->if_disabled = 1; 1241 wpa_supplicant_event(drv->ctx, 1242 EVENT_INTERFACE_DISABLED, NULL); 1243 1244 /* 1245 * Try to get drv again, since it may be removed as 1246 * part of the EVENT_INTERFACE_DISABLED handling for 1247 * dynamic interfaces 1248 */ 1249 drv = nl80211_find_drv(global, ifi->ifi_index, 1250 buf, len); 1251 if (!drv) 1252 return; 1253 } 1254 } 1255 1256 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) { 1257 if (if_indextoname(ifi->ifi_index, namebuf) && 1258 linux_iface_up(drv->global->ioctl_sock, 1259 drv->first_bss->ifname) == 0) { 1260 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1261 "event since interface %s is down", 1262 namebuf); 1263 } else if (if_nametoindex(drv->first_bss->ifname) == 0) { 1264 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1265 "event since interface %s does not exist", 1266 drv->first_bss->ifname); 1267 } else if (drv->if_removed) { 1268 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1269 "event since interface %s is marked " 1270 "removed", drv->first_bss->ifname); 1271 } else { 1272 wpa_printf(MSG_DEBUG, "nl80211: Interface up"); 1273 drv->if_disabled = 0; 1274 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED, 1275 NULL); 1276 } 1277 } 1278 1279 /* 1280 * Some drivers send the association event before the operup event--in 1281 * this case, lifting operstate in wpa_driver_nl80211_set_operstate() 1282 * fails. This will hit us when wpa_supplicant does not need to do 1283 * IEEE 802.1X authentication 1284 */ 1285 if (drv->operstate == 1 && 1286 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP && 1287 !(ifi->ifi_flags & IFF_RUNNING)) { 1288 wpa_printf(MSG_DEBUG, "nl80211: Set IF_OPER_UP again based on ifi_flags and expected operstate"); 1289 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 1290 -1, IF_OPER_UP); 1291 } 1292 1293 if (ifname[0]) 1294 wpa_driver_nl80211_event_newlink(drv, ifname); 1295 1296 if (ifi->ifi_family == AF_BRIDGE && brid) { 1297 /* device has been added to bridge */ 1298 if_indextoname(brid, namebuf); 1299 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s", 1300 brid, namebuf); 1301 add_ifidx(drv, brid); 1302 } 1303} 1304 1305 1306static void wpa_driver_nl80211_event_rtm_dellink(void *ctx, 1307 struct ifinfomsg *ifi, 1308 u8 *buf, size_t len) 1309{ 1310 struct nl80211_global *global = ctx; 1311 struct wpa_driver_nl80211_data *drv; 1312 int attrlen; 1313 struct rtattr *attr; 1314 u32 brid = 0; 1315 char ifname[IFNAMSIZ + 1]; 1316 1317 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); 1318 if (!drv) { 1319 wpa_printf(MSG_DEBUG, "nl80211: Ignore RTM_DELLINK event for foreign ifindex %d", 1320 ifi->ifi_index); 1321 return; 1322 } 1323 1324 ifname[0] = '\0'; 1325 1326 attrlen = len; 1327 attr = (struct rtattr *) buf; 1328 while (RTA_OK(attr, attrlen)) { 1329 switch (attr->rta_type) { 1330 case IFLA_IFNAME: 1331 if (RTA_PAYLOAD(attr) >= IFNAMSIZ) 1332 break; 1333 os_memcpy(ifname, RTA_DATA(attr), RTA_PAYLOAD(attr)); 1334 ifname[RTA_PAYLOAD(attr)] = '\0'; 1335 break; 1336 case IFLA_MASTER: 1337 brid = nla_get_u32((struct nlattr *) attr); 1338 break; 1339 } 1340 attr = RTA_NEXT(attr, attrlen); 1341 } 1342 1343 if (ifname[0]) 1344 wpa_driver_nl80211_event_dellink(drv, ifname); 1345 1346 if (ifi->ifi_family == AF_BRIDGE && brid) { 1347 /* device has been removed from bridge */ 1348 char namebuf[IFNAMSIZ]; 1349 if_indextoname(brid, namebuf); 1350 wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge " 1351 "%s", brid, namebuf); 1352 del_ifidx(drv, brid); 1353 } 1354} 1355 1356 1357static void mlme_event_auth(struct wpa_driver_nl80211_data *drv, 1358 const u8 *frame, size_t len) 1359{ 1360 const struct ieee80211_mgmt *mgmt; 1361 union wpa_event_data event; 1362 1363 wpa_printf(MSG_DEBUG, "nl80211: Authenticate event"); 1364 mgmt = (const struct ieee80211_mgmt *) frame; 1365 if (len < 24 + sizeof(mgmt->u.auth)) { 1366 wpa_printf(MSG_DEBUG, "nl80211: Too short association event " 1367 "frame"); 1368 return; 1369 } 1370 1371 os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN); 1372 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 1373 os_memset(&event, 0, sizeof(event)); 1374 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN); 1375 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg); 1376 event.auth.auth_transaction = 1377 le_to_host16(mgmt->u.auth.auth_transaction); 1378 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code); 1379 if (len > 24 + sizeof(mgmt->u.auth)) { 1380 event.auth.ies = mgmt->u.auth.variable; 1381 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth); 1382 } 1383 1384 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event); 1385} 1386 1387 1388static unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv) 1389{ 1390 struct nl_msg *msg; 1391 int ret; 1392 struct nl80211_bss_info_arg arg; 1393 1394 os_memset(&arg, 0, sizeof(arg)); 1395 msg = nlmsg_alloc(); 1396 if (!msg) 1397 goto nla_put_failure; 1398 1399 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 1400 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 1401 1402 arg.drv = drv; 1403 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 1404 msg = NULL; 1405 if (ret == 0) { 1406 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the " 1407 "associated BSS from scan results: %u MHz", 1408 arg.assoc_freq); 1409 if (arg.assoc_freq) 1410 drv->assoc_freq = arg.assoc_freq; 1411 return drv->assoc_freq; 1412 } 1413 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 1414 "(%s)", ret, strerror(-ret)); 1415nla_put_failure: 1416 nlmsg_free(msg); 1417 return drv->assoc_freq; 1418} 1419 1420 1421static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv, 1422 const u8 *frame, size_t len) 1423{ 1424 const struct ieee80211_mgmt *mgmt; 1425 union wpa_event_data event; 1426 u16 status; 1427 1428 wpa_printf(MSG_DEBUG, "nl80211: Associate event"); 1429 mgmt = (const struct ieee80211_mgmt *) frame; 1430 if (len < 24 + sizeof(mgmt->u.assoc_resp)) { 1431 wpa_printf(MSG_DEBUG, "nl80211: Too short association event " 1432 "frame"); 1433 return; 1434 } 1435 1436 status = le_to_host16(mgmt->u.assoc_resp.status_code); 1437 if (status != WLAN_STATUS_SUCCESS) { 1438 os_memset(&event, 0, sizeof(event)); 1439 event.assoc_reject.bssid = mgmt->bssid; 1440 if (len > 24 + sizeof(mgmt->u.assoc_resp)) { 1441 event.assoc_reject.resp_ies = 1442 (u8 *) mgmt->u.assoc_resp.variable; 1443 event.assoc_reject.resp_ies_len = 1444 len - 24 - sizeof(mgmt->u.assoc_resp); 1445 } 1446 event.assoc_reject.status_code = status; 1447 1448 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); 1449 return; 1450 } 1451 1452 drv->associated = 1; 1453 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN); 1454 os_memcpy(drv->prev_bssid, mgmt->sa, ETH_ALEN); 1455 1456 os_memset(&event, 0, sizeof(event)); 1457 if (len > 24 + sizeof(mgmt->u.assoc_resp)) { 1458 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable; 1459 event.assoc_info.resp_ies_len = 1460 len - 24 - sizeof(mgmt->u.assoc_resp); 1461 } 1462 1463 event.assoc_info.freq = drv->assoc_freq; 1464 1465 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); 1466} 1467 1468 1469static void mlme_event_connect(struct wpa_driver_nl80211_data *drv, 1470 enum nl80211_commands cmd, struct nlattr *status, 1471 struct nlattr *addr, struct nlattr *req_ie, 1472 struct nlattr *resp_ie) 1473{ 1474 union wpa_event_data event; 1475 1476 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 1477 /* 1478 * Avoid reporting two association events that would confuse 1479 * the core code. 1480 */ 1481 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) " 1482 "when using userspace SME", cmd); 1483 return; 1484 } 1485 1486 if (cmd == NL80211_CMD_CONNECT) 1487 wpa_printf(MSG_DEBUG, "nl80211: Connect event"); 1488 else if (cmd == NL80211_CMD_ROAM) 1489 wpa_printf(MSG_DEBUG, "nl80211: Roam event"); 1490 1491 os_memset(&event, 0, sizeof(event)); 1492 if (cmd == NL80211_CMD_CONNECT && 1493 nla_get_u16(status) != WLAN_STATUS_SUCCESS) { 1494 if (addr) 1495 event.assoc_reject.bssid = nla_data(addr); 1496 if (resp_ie) { 1497 event.assoc_reject.resp_ies = nla_data(resp_ie); 1498 event.assoc_reject.resp_ies_len = nla_len(resp_ie); 1499 } 1500 event.assoc_reject.status_code = nla_get_u16(status); 1501 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); 1502 return; 1503 } 1504 1505 drv->associated = 1; 1506 if (addr) { 1507 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN); 1508 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); 1509 } 1510 1511 if (req_ie) { 1512 event.assoc_info.req_ies = nla_data(req_ie); 1513 event.assoc_info.req_ies_len = nla_len(req_ie); 1514 } 1515 if (resp_ie) { 1516 event.assoc_info.resp_ies = nla_data(resp_ie); 1517 event.assoc_info.resp_ies_len = nla_len(resp_ie); 1518 } 1519 1520 event.assoc_info.freq = nl80211_get_assoc_freq(drv); 1521 1522 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); 1523} 1524 1525 1526static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv, 1527 struct nlattr *reason, struct nlattr *addr, 1528 struct nlattr *by_ap) 1529{ 1530 union wpa_event_data data; 1531 unsigned int locally_generated = by_ap == NULL; 1532 1533 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 1534 /* 1535 * Avoid reporting two disassociation events that could 1536 * confuse the core code. 1537 */ 1538 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " 1539 "event when using userspace SME"); 1540 return; 1541 } 1542 1543 if (drv->ignore_next_local_disconnect) { 1544 drv->ignore_next_local_disconnect = 0; 1545 if (locally_generated) { 1546 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " 1547 "event triggered during reassociation"); 1548 return; 1549 } 1550 wpa_printf(MSG_WARNING, "nl80211: Was expecting local " 1551 "disconnect but got another disconnect " 1552 "event first"); 1553 } 1554 1555 wpa_printf(MSG_DEBUG, "nl80211: Disconnect event"); 1556 nl80211_mark_disconnected(drv); 1557 os_memset(&data, 0, sizeof(data)); 1558 if (reason) 1559 data.deauth_info.reason_code = nla_get_u16(reason); 1560 data.deauth_info.locally_generated = by_ap == NULL; 1561 wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, &data); 1562} 1563 1564 1565static int calculate_chan_offset(int width, int freq, int cf1, int cf2) 1566{ 1567 int freq1 = 0; 1568 1569 switch (convert2width(width)) { 1570 case CHAN_WIDTH_20_NOHT: 1571 case CHAN_WIDTH_20: 1572 return 0; 1573 case CHAN_WIDTH_40: 1574 freq1 = cf1 - 10; 1575 break; 1576 case CHAN_WIDTH_80: 1577 freq1 = cf1 - 30; 1578 break; 1579 case CHAN_WIDTH_160: 1580 freq1 = cf1 - 70; 1581 break; 1582 case CHAN_WIDTH_UNKNOWN: 1583 case CHAN_WIDTH_80P80: 1584 /* FIXME: implement this */ 1585 return 0; 1586 } 1587 1588 return (abs(freq - freq1) / 20) % 2 == 0 ? 1 : -1; 1589} 1590 1591 1592static void mlme_event_ch_switch(struct wpa_driver_nl80211_data *drv, 1593 struct nlattr *ifindex, struct nlattr *freq, 1594 struct nlattr *type, struct nlattr *bw, 1595 struct nlattr *cf1, struct nlattr *cf2) 1596{ 1597 struct i802_bss *bss; 1598 union wpa_event_data data; 1599 int ht_enabled = 1; 1600 int chan_offset = 0; 1601 int ifidx; 1602 1603 wpa_printf(MSG_DEBUG, "nl80211: Channel switch event"); 1604 1605 if (!freq) 1606 return; 1607 1608 ifidx = nla_get_u32(ifindex); 1609 for (bss = drv->first_bss; bss; bss = bss->next) 1610 if (bss->ifindex == ifidx) 1611 break; 1612 1613 if (bss == NULL) { 1614 wpa_printf(MSG_WARNING, "nl80211: Unknown ifindex (%d) for channel switch, ignoring", 1615 ifidx); 1616 return; 1617 } 1618 1619 if (type) { 1620 switch (nla_get_u32(type)) { 1621 case NL80211_CHAN_NO_HT: 1622 ht_enabled = 0; 1623 break; 1624 case NL80211_CHAN_HT20: 1625 break; 1626 case NL80211_CHAN_HT40PLUS: 1627 chan_offset = 1; 1628 break; 1629 case NL80211_CHAN_HT40MINUS: 1630 chan_offset = -1; 1631 break; 1632 } 1633 } else if (bw && cf1) { 1634 /* This can happen for example with VHT80 ch switch */ 1635 chan_offset = calculate_chan_offset(nla_get_u32(bw), 1636 nla_get_u32(freq), 1637 nla_get_u32(cf1), 1638 cf2 ? nla_get_u32(cf2) : 0); 1639 } else { 1640 wpa_printf(MSG_WARNING, "nl80211: Unknown secondary channel information - following channel definition calculations may fail"); 1641 } 1642 1643 os_memset(&data, 0, sizeof(data)); 1644 data.ch_switch.freq = nla_get_u32(freq); 1645 data.ch_switch.ht_enabled = ht_enabled; 1646 data.ch_switch.ch_offset = chan_offset; 1647 if (bw) 1648 data.ch_switch.ch_width = convert2width(nla_get_u32(bw)); 1649 if (cf1) 1650 data.ch_switch.cf1 = nla_get_u32(cf1); 1651 if (cf2) 1652 data.ch_switch.cf2 = nla_get_u32(cf2); 1653 1654 bss->freq = data.ch_switch.freq; 1655 1656 wpa_supplicant_event(drv->ctx, EVENT_CH_SWITCH, &data); 1657} 1658 1659 1660static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv, 1661 enum nl80211_commands cmd, struct nlattr *addr) 1662{ 1663 union wpa_event_data event; 1664 enum wpa_event_type ev; 1665 1666 if (nla_len(addr) != ETH_ALEN) 1667 return; 1668 1669 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR, 1670 cmd, MAC2STR((u8 *) nla_data(addr))); 1671 1672 if (cmd == NL80211_CMD_AUTHENTICATE) 1673 ev = EVENT_AUTH_TIMED_OUT; 1674 else if (cmd == NL80211_CMD_ASSOCIATE) 1675 ev = EVENT_ASSOC_TIMED_OUT; 1676 else 1677 return; 1678 1679 os_memset(&event, 0, sizeof(event)); 1680 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN); 1681 wpa_supplicant_event(drv->ctx, ev, &event); 1682} 1683 1684 1685static void mlme_event_mgmt(struct i802_bss *bss, 1686 struct nlattr *freq, struct nlattr *sig, 1687 const u8 *frame, size_t len) 1688{ 1689 struct wpa_driver_nl80211_data *drv = bss->drv; 1690 const struct ieee80211_mgmt *mgmt; 1691 union wpa_event_data event; 1692 u16 fc, stype; 1693 int ssi_signal = 0; 1694 int rx_freq = 0; 1695 1696 wpa_printf(MSG_MSGDUMP, "nl80211: Frame event"); 1697 mgmt = (const struct ieee80211_mgmt *) frame; 1698 if (len < 24) { 1699 wpa_printf(MSG_DEBUG, "nl80211: Too short management frame"); 1700 return; 1701 } 1702 1703 fc = le_to_host16(mgmt->frame_control); 1704 stype = WLAN_FC_GET_STYPE(fc); 1705 1706 if (sig) 1707 ssi_signal = (s32) nla_get_u32(sig); 1708 1709 os_memset(&event, 0, sizeof(event)); 1710 if (freq) { 1711 event.rx_mgmt.freq = nla_get_u32(freq); 1712 rx_freq = drv->last_mgmt_freq = event.rx_mgmt.freq; 1713 } 1714 wpa_printf(MSG_DEBUG, 1715 "nl80211: RX frame freq=%d ssi_signal=%d stype=%u len=%u", 1716 rx_freq, ssi_signal, stype, (unsigned int) len); 1717 event.rx_mgmt.frame = frame; 1718 event.rx_mgmt.frame_len = len; 1719 event.rx_mgmt.ssi_signal = ssi_signal; 1720 event.rx_mgmt.drv_priv = bss; 1721 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 1722} 1723 1724 1725static void mlme_event_mgmt_tx_status(struct wpa_driver_nl80211_data *drv, 1726 struct nlattr *cookie, const u8 *frame, 1727 size_t len, struct nlattr *ack) 1728{ 1729 union wpa_event_data event; 1730 const struct ieee80211_hdr *hdr; 1731 u16 fc; 1732 1733 wpa_printf(MSG_DEBUG, "nl80211: Frame TX status event"); 1734 if (!is_ap_interface(drv->nlmode)) { 1735 u64 cookie_val; 1736 1737 if (!cookie) 1738 return; 1739 1740 cookie_val = nla_get_u64(cookie); 1741 wpa_printf(MSG_DEBUG, "nl80211: Action TX status:" 1742 " cookie=0%llx%s (ack=%d)", 1743 (long long unsigned int) cookie_val, 1744 cookie_val == drv->send_action_cookie ? 1745 " (match)" : " (unknown)", ack != NULL); 1746 if (cookie_val != drv->send_action_cookie) 1747 return; 1748 } 1749 1750 hdr = (const struct ieee80211_hdr *) frame; 1751 fc = le_to_host16(hdr->frame_control); 1752 1753 os_memset(&event, 0, sizeof(event)); 1754 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 1755 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 1756 event.tx_status.dst = hdr->addr1; 1757 event.tx_status.data = frame; 1758 event.tx_status.data_len = len; 1759 event.tx_status.ack = ack != NULL; 1760 wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event); 1761} 1762 1763 1764static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv, 1765 enum wpa_event_type type, 1766 const u8 *frame, size_t len) 1767{ 1768 const struct ieee80211_mgmt *mgmt; 1769 union wpa_event_data event; 1770 const u8 *bssid = NULL; 1771 u16 reason_code = 0; 1772 1773 if (type == EVENT_DEAUTH) 1774 wpa_printf(MSG_DEBUG, "nl80211: Deauthenticate event"); 1775 else 1776 wpa_printf(MSG_DEBUG, "nl80211: Disassociate event"); 1777 1778 mgmt = (const struct ieee80211_mgmt *) frame; 1779 if (len >= 24) { 1780 bssid = mgmt->bssid; 1781 1782 if ((drv->capa.flags & WPA_DRIVER_FLAGS_SME) && 1783 !drv->associated && 1784 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0 && 1785 os_memcmp(bssid, drv->auth_attempt_bssid, ETH_ALEN) != 0 && 1786 os_memcmp(bssid, drv->prev_bssid, ETH_ALEN) == 0) { 1787 /* 1788 * Avoid issues with some roaming cases where 1789 * disconnection event for the old AP may show up after 1790 * we have started connection with the new AP. 1791 */ 1792 wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth/disassoc event from old AP " MACSTR " when already authenticating with " MACSTR, 1793 MAC2STR(bssid), 1794 MAC2STR(drv->auth_attempt_bssid)); 1795 return; 1796 } 1797 1798 if (drv->associated != 0 && 1799 os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 && 1800 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) { 1801 /* 1802 * We have presumably received this deauth as a 1803 * response to a clear_state_mismatch() outgoing 1804 * deauth. Don't let it take us offline! 1805 */ 1806 wpa_printf(MSG_DEBUG, "nl80211: Deauth received " 1807 "from Unknown BSSID " MACSTR " -- ignoring", 1808 MAC2STR(bssid)); 1809 return; 1810 } 1811 } 1812 1813 nl80211_mark_disconnected(drv); 1814 os_memset(&event, 0, sizeof(event)); 1815 1816 /* Note: Same offset for Reason Code in both frame subtypes */ 1817 if (len >= 24 + sizeof(mgmt->u.deauth)) 1818 reason_code = le_to_host16(mgmt->u.deauth.reason_code); 1819 1820 if (type == EVENT_DISASSOC) { 1821 event.disassoc_info.locally_generated = 1822 !os_memcmp(mgmt->sa, drv->first_bss->addr, ETH_ALEN); 1823 event.disassoc_info.addr = bssid; 1824 event.disassoc_info.reason_code = reason_code; 1825 if (frame + len > mgmt->u.disassoc.variable) { 1826 event.disassoc_info.ie = mgmt->u.disassoc.variable; 1827 event.disassoc_info.ie_len = frame + len - 1828 mgmt->u.disassoc.variable; 1829 } 1830 } else { 1831 if (drv->ignore_deauth_event) { 1832 wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth event due to previous forced deauth-during-auth"); 1833 drv->ignore_deauth_event = 0; 1834 return; 1835 } 1836 event.deauth_info.locally_generated = 1837 !os_memcmp(mgmt->sa, drv->first_bss->addr, ETH_ALEN); 1838 event.deauth_info.addr = bssid; 1839 event.deauth_info.reason_code = reason_code; 1840 if (frame + len > mgmt->u.deauth.variable) { 1841 event.deauth_info.ie = mgmt->u.deauth.variable; 1842 event.deauth_info.ie_len = frame + len - 1843 mgmt->u.deauth.variable; 1844 } 1845 } 1846 1847 wpa_supplicant_event(drv->ctx, type, &event); 1848} 1849 1850 1851static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv, 1852 enum wpa_event_type type, 1853 const u8 *frame, size_t len) 1854{ 1855 const struct ieee80211_mgmt *mgmt; 1856 union wpa_event_data event; 1857 u16 reason_code = 0; 1858 1859 if (type == EVENT_UNPROT_DEAUTH) 1860 wpa_printf(MSG_DEBUG, "nl80211: Unprot Deauthenticate event"); 1861 else 1862 wpa_printf(MSG_DEBUG, "nl80211: Unprot Disassociate event"); 1863 1864 if (len < 24) 1865 return; 1866 1867 mgmt = (const struct ieee80211_mgmt *) frame; 1868 1869 os_memset(&event, 0, sizeof(event)); 1870 /* Note: Same offset for Reason Code in both frame subtypes */ 1871 if (len >= 24 + sizeof(mgmt->u.deauth)) 1872 reason_code = le_to_host16(mgmt->u.deauth.reason_code); 1873 1874 if (type == EVENT_UNPROT_DISASSOC) { 1875 event.unprot_disassoc.sa = mgmt->sa; 1876 event.unprot_disassoc.da = mgmt->da; 1877 event.unprot_disassoc.reason_code = reason_code; 1878 } else { 1879 event.unprot_deauth.sa = mgmt->sa; 1880 event.unprot_deauth.da = mgmt->da; 1881 event.unprot_deauth.reason_code = reason_code; 1882 } 1883 1884 wpa_supplicant_event(drv->ctx, type, &event); 1885} 1886 1887 1888static void mlme_event(struct i802_bss *bss, 1889 enum nl80211_commands cmd, struct nlattr *frame, 1890 struct nlattr *addr, struct nlattr *timed_out, 1891 struct nlattr *freq, struct nlattr *ack, 1892 struct nlattr *cookie, struct nlattr *sig) 1893{ 1894 struct wpa_driver_nl80211_data *drv = bss->drv; 1895 const u8 *data; 1896 size_t len; 1897 1898 if (timed_out && addr) { 1899 mlme_timeout_event(drv, cmd, addr); 1900 return; 1901 } 1902 1903 if (frame == NULL) { 1904 wpa_printf(MSG_DEBUG, 1905 "nl80211: MLME event %d (%s) without frame data", 1906 cmd, nl80211_command_to_string(cmd)); 1907 return; 1908 } 1909 1910 data = nla_data(frame); 1911 len = nla_len(frame); 1912 if (len < 4 + 2 * ETH_ALEN) { 1913 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" 1914 MACSTR ") - too short", 1915 cmd, nl80211_command_to_string(cmd), bss->ifname, 1916 MAC2STR(bss->addr)); 1917 return; 1918 } 1919 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" MACSTR 1920 ") A1=" MACSTR " A2=" MACSTR, cmd, 1921 nl80211_command_to_string(cmd), bss->ifname, 1922 MAC2STR(bss->addr), MAC2STR(data + 4), 1923 MAC2STR(data + 4 + ETH_ALEN)); 1924 if (cmd != NL80211_CMD_FRAME_TX_STATUS && !(data[4] & 0x01) && 1925 os_memcmp(bss->addr, data + 4, ETH_ALEN) != 0 && 1926 os_memcmp(bss->addr, data + 4 + ETH_ALEN, ETH_ALEN) != 0) { 1927 wpa_printf(MSG_MSGDUMP, "nl80211: %s: Ignore MLME frame event " 1928 "for foreign address", bss->ifname); 1929 return; 1930 } 1931 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame", 1932 nla_data(frame), nla_len(frame)); 1933 1934 switch (cmd) { 1935 case NL80211_CMD_AUTHENTICATE: 1936 mlme_event_auth(drv, nla_data(frame), nla_len(frame)); 1937 break; 1938 case NL80211_CMD_ASSOCIATE: 1939 mlme_event_assoc(drv, nla_data(frame), nla_len(frame)); 1940 break; 1941 case NL80211_CMD_DEAUTHENTICATE: 1942 mlme_event_deauth_disassoc(drv, EVENT_DEAUTH, 1943 nla_data(frame), nla_len(frame)); 1944 break; 1945 case NL80211_CMD_DISASSOCIATE: 1946 mlme_event_deauth_disassoc(drv, EVENT_DISASSOC, 1947 nla_data(frame), nla_len(frame)); 1948 break; 1949 case NL80211_CMD_FRAME: 1950 mlme_event_mgmt(bss, freq, sig, nla_data(frame), 1951 nla_len(frame)); 1952 break; 1953 case NL80211_CMD_FRAME_TX_STATUS: 1954 mlme_event_mgmt_tx_status(drv, cookie, nla_data(frame), 1955 nla_len(frame), ack); 1956 break; 1957 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 1958 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH, 1959 nla_data(frame), nla_len(frame)); 1960 break; 1961 case NL80211_CMD_UNPROT_DISASSOCIATE: 1962 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC, 1963 nla_data(frame), nla_len(frame)); 1964 break; 1965 default: 1966 break; 1967 } 1968} 1969 1970 1971static void mlme_event_michael_mic_failure(struct i802_bss *bss, 1972 struct nlattr *tb[]) 1973{ 1974 union wpa_event_data data; 1975 1976 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure"); 1977 os_memset(&data, 0, sizeof(data)); 1978 if (tb[NL80211_ATTR_MAC]) { 1979 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address", 1980 nla_data(tb[NL80211_ATTR_MAC]), 1981 nla_len(tb[NL80211_ATTR_MAC])); 1982 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]); 1983 } 1984 if (tb[NL80211_ATTR_KEY_SEQ]) { 1985 wpa_hexdump(MSG_DEBUG, "nl80211: TSC", 1986 nla_data(tb[NL80211_ATTR_KEY_SEQ]), 1987 nla_len(tb[NL80211_ATTR_KEY_SEQ])); 1988 } 1989 if (tb[NL80211_ATTR_KEY_TYPE]) { 1990 enum nl80211_key_type key_type = 1991 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]); 1992 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type); 1993 if (key_type == NL80211_KEYTYPE_PAIRWISE) 1994 data.michael_mic_failure.unicast = 1; 1995 } else 1996 data.michael_mic_failure.unicast = 1; 1997 1998 if (tb[NL80211_ATTR_KEY_IDX]) { 1999 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]); 2000 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id); 2001 } 2002 2003 wpa_supplicant_event(bss->ctx, EVENT_MICHAEL_MIC_FAILURE, &data); 2004} 2005 2006 2007static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv, 2008 struct nlattr *tb[]) 2009{ 2010 if (tb[NL80211_ATTR_MAC] == NULL) { 2011 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined " 2012 "event"); 2013 return; 2014 } 2015 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2016 2017 drv->associated = 1; 2018 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined", 2019 MAC2STR(drv->bssid)); 2020 2021 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL); 2022} 2023 2024 2025static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv, 2026 int cancel_event, struct nlattr *tb[]) 2027{ 2028 unsigned int freq, chan_type, duration; 2029 union wpa_event_data data; 2030 u64 cookie; 2031 2032 if (tb[NL80211_ATTR_WIPHY_FREQ]) 2033 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); 2034 else 2035 freq = 0; 2036 2037 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) 2038 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); 2039 else 2040 chan_type = 0; 2041 2042 if (tb[NL80211_ATTR_DURATION]) 2043 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]); 2044 else 2045 duration = 0; 2046 2047 if (tb[NL80211_ATTR_COOKIE]) 2048 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 2049 else 2050 cookie = 0; 2051 2052 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d " 2053 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))", 2054 cancel_event, freq, chan_type, duration, 2055 (long long unsigned int) cookie, 2056 cookie == drv->remain_on_chan_cookie ? "match" : "unknown"); 2057 2058 if (cookie != drv->remain_on_chan_cookie) 2059 return; /* not for us */ 2060 2061 if (cancel_event) 2062 drv->pending_remain_on_chan = 0; 2063 2064 os_memset(&data, 0, sizeof(data)); 2065 data.remain_on_channel.freq = freq; 2066 data.remain_on_channel.duration = duration; 2067 wpa_supplicant_event(drv->ctx, cancel_event ? 2068 EVENT_CANCEL_REMAIN_ON_CHANNEL : 2069 EVENT_REMAIN_ON_CHANNEL, &data); 2070} 2071 2072 2073static void mlme_event_ft_event(struct wpa_driver_nl80211_data *drv, 2074 struct nlattr *tb[]) 2075{ 2076 union wpa_event_data data; 2077 2078 os_memset(&data, 0, sizeof(data)); 2079 2080 if (tb[NL80211_ATTR_IE]) { 2081 data.ft_ies.ies = nla_data(tb[NL80211_ATTR_IE]); 2082 data.ft_ies.ies_len = nla_len(tb[NL80211_ATTR_IE]); 2083 } 2084 2085 if (tb[NL80211_ATTR_IE_RIC]) { 2086 data.ft_ies.ric_ies = nla_data(tb[NL80211_ATTR_IE_RIC]); 2087 data.ft_ies.ric_ies_len = nla_len(tb[NL80211_ATTR_IE_RIC]); 2088 } 2089 2090 if (tb[NL80211_ATTR_MAC]) 2091 os_memcpy(data.ft_ies.target_ap, 2092 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2093 2094 wpa_printf(MSG_DEBUG, "nl80211: FT event target_ap " MACSTR, 2095 MAC2STR(data.ft_ies.target_ap)); 2096 2097 wpa_supplicant_event(drv->ctx, EVENT_FT_RESPONSE, &data); 2098} 2099 2100 2101static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted, 2102 struct nlattr *tb[]) 2103{ 2104 union wpa_event_data event; 2105 struct nlattr *nl; 2106 int rem; 2107 struct scan_info *info; 2108#define MAX_REPORT_FREQS 50 2109 int freqs[MAX_REPORT_FREQS]; 2110 int num_freqs = 0; 2111 2112 if (drv->scan_for_auth) { 2113 drv->scan_for_auth = 0; 2114 wpa_printf(MSG_DEBUG, "nl80211: Scan results for missing " 2115 "cfg80211 BSS entry"); 2116 wpa_driver_nl80211_authenticate_retry(drv); 2117 return; 2118 } 2119 2120 os_memset(&event, 0, sizeof(event)); 2121 info = &event.scan_info; 2122 info->aborted = aborted; 2123 2124 if (tb[NL80211_ATTR_SCAN_SSIDS]) { 2125 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) { 2126 struct wpa_driver_scan_ssid *s = 2127 &info->ssids[info->num_ssids]; 2128 s->ssid = nla_data(nl); 2129 s->ssid_len = nla_len(nl); 2130 wpa_printf(MSG_DEBUG, "nl80211: Scan probed for SSID '%s'", 2131 wpa_ssid_txt(s->ssid, s->ssid_len)); 2132 info->num_ssids++; 2133 if (info->num_ssids == WPAS_MAX_SCAN_SSIDS) 2134 break; 2135 } 2136 } 2137 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) { 2138 char msg[200], *pos, *end; 2139 int res; 2140 2141 pos = msg; 2142 end = pos + sizeof(msg); 2143 *pos = '\0'; 2144 2145 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem) 2146 { 2147 freqs[num_freqs] = nla_get_u32(nl); 2148 res = os_snprintf(pos, end - pos, " %d", 2149 freqs[num_freqs]); 2150 if (res > 0 && end - pos > res) 2151 pos += res; 2152 num_freqs++; 2153 if (num_freqs == MAX_REPORT_FREQS - 1) 2154 break; 2155 } 2156 info->freqs = freqs; 2157 info->num_freqs = num_freqs; 2158 wpa_printf(MSG_DEBUG, "nl80211: Scan included frequencies:%s", 2159 msg); 2160 } 2161 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event); 2162} 2163 2164 2165static int get_link_signal(struct nl_msg *msg, void *arg) 2166{ 2167 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2168 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2169 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1]; 2170 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = { 2171 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 }, 2172 [NL80211_STA_INFO_SIGNAL_AVG] = { .type = NLA_U8 }, 2173 }; 2174 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1]; 2175 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = { 2176 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 }, 2177 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 }, 2178 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG }, 2179 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG }, 2180 }; 2181 struct wpa_signal_info *sig_change = arg; 2182 2183 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2184 genlmsg_attrlen(gnlh, 0), NULL); 2185 if (!tb[NL80211_ATTR_STA_INFO] || 2186 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX, 2187 tb[NL80211_ATTR_STA_INFO], policy)) 2188 return NL_SKIP; 2189 if (!sinfo[NL80211_STA_INFO_SIGNAL]) 2190 return NL_SKIP; 2191 2192 sig_change->current_signal = 2193 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]); 2194 2195 if (sinfo[NL80211_STA_INFO_SIGNAL_AVG]) 2196 sig_change->avg_signal = 2197 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL_AVG]); 2198 else 2199 sig_change->avg_signal = 0; 2200 2201 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) { 2202 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX, 2203 sinfo[NL80211_STA_INFO_TX_BITRATE], 2204 rate_policy)) { 2205 sig_change->current_txrate = 0; 2206 } else { 2207 if (rinfo[NL80211_RATE_INFO_BITRATE]) { 2208 sig_change->current_txrate = 2209 nla_get_u16(rinfo[ 2210 NL80211_RATE_INFO_BITRATE]) * 100; 2211 } 2212 } 2213 } 2214 2215 return NL_SKIP; 2216} 2217 2218 2219static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv, 2220 struct wpa_signal_info *sig) 2221{ 2222 struct nl_msg *msg; 2223 2224 sig->current_signal = -9999; 2225 sig->current_txrate = 0; 2226 2227 msg = nlmsg_alloc(); 2228 if (!msg) 2229 return -ENOMEM; 2230 2231 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 2232 2233 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2234 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 2235 2236 return send_and_recv_msgs(drv, msg, get_link_signal, sig); 2237 nla_put_failure: 2238 nlmsg_free(msg); 2239 return -ENOBUFS; 2240} 2241 2242 2243static int get_link_noise(struct nl_msg *msg, void *arg) 2244{ 2245 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2246 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2247 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 2248 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 2249 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 2250 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 2251 }; 2252 struct wpa_signal_info *sig_change = arg; 2253 2254 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2255 genlmsg_attrlen(gnlh, 0), NULL); 2256 2257 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 2258 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!"); 2259 return NL_SKIP; 2260 } 2261 2262 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 2263 tb[NL80211_ATTR_SURVEY_INFO], 2264 survey_policy)) { 2265 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested " 2266 "attributes!"); 2267 return NL_SKIP; 2268 } 2269 2270 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 2271 return NL_SKIP; 2272 2273 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 2274 sig_change->frequency) 2275 return NL_SKIP; 2276 2277 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 2278 return NL_SKIP; 2279 2280 sig_change->current_noise = 2281 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 2282 2283 return NL_SKIP; 2284} 2285 2286 2287static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv, 2288 struct wpa_signal_info *sig_change) 2289{ 2290 struct nl_msg *msg; 2291 2292 sig_change->current_noise = 9999; 2293 sig_change->frequency = drv->assoc_freq; 2294 2295 msg = nlmsg_alloc(); 2296 if (!msg) 2297 return -ENOMEM; 2298 2299 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 2300 2301 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2302 2303 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change); 2304 nla_put_failure: 2305 nlmsg_free(msg); 2306 return -ENOBUFS; 2307} 2308 2309 2310static int get_noise_for_scan_results(struct nl_msg *msg, void *arg) 2311{ 2312 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2313 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2314 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 2315 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 2316 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 2317 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 2318 }; 2319 struct wpa_scan_results *scan_results = arg; 2320 struct wpa_scan_res *scan_res; 2321 size_t i; 2322 2323 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2324 genlmsg_attrlen(gnlh, 0), NULL); 2325 2326 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 2327 wpa_printf(MSG_DEBUG, "nl80211: Survey data missing"); 2328 return NL_SKIP; 2329 } 2330 2331 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 2332 tb[NL80211_ATTR_SURVEY_INFO], 2333 survey_policy)) { 2334 wpa_printf(MSG_DEBUG, "nl80211: Failed to parse nested " 2335 "attributes"); 2336 return NL_SKIP; 2337 } 2338 2339 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 2340 return NL_SKIP; 2341 2342 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 2343 return NL_SKIP; 2344 2345 for (i = 0; i < scan_results->num; ++i) { 2346 scan_res = scan_results->res[i]; 2347 if (!scan_res) 2348 continue; 2349 if ((int) nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 2350 scan_res->freq) 2351 continue; 2352 if (!(scan_res->flags & WPA_SCAN_NOISE_INVALID)) 2353 continue; 2354 scan_res->noise = (s8) 2355 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 2356 scan_res->flags &= ~WPA_SCAN_NOISE_INVALID; 2357 } 2358 2359 return NL_SKIP; 2360} 2361 2362 2363static int nl80211_get_noise_for_scan_results( 2364 struct wpa_driver_nl80211_data *drv, 2365 struct wpa_scan_results *scan_res) 2366{ 2367 struct nl_msg *msg; 2368 2369 msg = nlmsg_alloc(); 2370 if (!msg) 2371 return -ENOMEM; 2372 2373 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 2374 2375 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2376 2377 return send_and_recv_msgs(drv, msg, get_noise_for_scan_results, 2378 scan_res); 2379 nla_put_failure: 2380 nlmsg_free(msg); 2381 return -ENOBUFS; 2382} 2383 2384 2385static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv, 2386 struct nlattr *tb[]) 2387{ 2388 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = { 2389 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, 2390 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 }, 2391 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, 2392 [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 }, 2393 }; 2394 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1]; 2395 enum nl80211_cqm_rssi_threshold_event event; 2396 union wpa_event_data ed; 2397 struct wpa_signal_info sig; 2398 int res; 2399 2400 if (tb[NL80211_ATTR_CQM] == NULL || 2401 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM], 2402 cqm_policy)) { 2403 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event"); 2404 return; 2405 } 2406 2407 os_memset(&ed, 0, sizeof(ed)); 2408 2409 if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) { 2410 if (!tb[NL80211_ATTR_MAC]) 2411 return; 2412 os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]), 2413 ETH_ALEN); 2414 wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed); 2415 return; 2416 } 2417 2418 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL) 2419 return; 2420 event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]); 2421 2422 if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) { 2423 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 2424 "event: RSSI high"); 2425 ed.signal_change.above_threshold = 1; 2426 } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) { 2427 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 2428 "event: RSSI low"); 2429 ed.signal_change.above_threshold = 0; 2430 } else 2431 return; 2432 2433 res = nl80211_get_link_signal(drv, &sig); 2434 if (res == 0) { 2435 ed.signal_change.current_signal = sig.current_signal; 2436 ed.signal_change.current_txrate = sig.current_txrate; 2437 wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d", 2438 sig.current_signal, sig.current_txrate); 2439 } 2440 2441 res = nl80211_get_link_noise(drv, &sig); 2442 if (res == 0) { 2443 ed.signal_change.current_noise = sig.current_noise; 2444 wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm", 2445 sig.current_noise); 2446 } 2447 2448 wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed); 2449} 2450 2451 2452static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv, 2453 struct nlattr **tb) 2454{ 2455 u8 *addr; 2456 union wpa_event_data data; 2457 2458 if (tb[NL80211_ATTR_MAC] == NULL) 2459 return; 2460 addr = nla_data(tb[NL80211_ATTR_MAC]); 2461 wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr)); 2462 2463 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2464 u8 *ies = NULL; 2465 size_t ies_len = 0; 2466 if (tb[NL80211_ATTR_IE]) { 2467 ies = nla_data(tb[NL80211_ATTR_IE]); 2468 ies_len = nla_len(tb[NL80211_ATTR_IE]); 2469 } 2470 wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len); 2471 drv_event_assoc(drv->ctx, addr, ies, ies_len, 0); 2472 return; 2473 } 2474 2475 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2476 return; 2477 2478 os_memset(&data, 0, sizeof(data)); 2479 os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN); 2480 wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data); 2481} 2482 2483 2484static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv, 2485 struct nlattr **tb) 2486{ 2487 u8 *addr; 2488 union wpa_event_data data; 2489 2490 if (tb[NL80211_ATTR_MAC] == NULL) 2491 return; 2492 addr = nla_data(tb[NL80211_ATTR_MAC]); 2493 wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR, 2494 MAC2STR(addr)); 2495 2496 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2497 drv_event_disassoc(drv->ctx, addr); 2498 return; 2499 } 2500 2501 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2502 return; 2503 2504 os_memset(&data, 0, sizeof(data)); 2505 os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN); 2506 wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data); 2507} 2508 2509 2510static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv, 2511 struct nlattr **tb) 2512{ 2513 struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA]; 2514 static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = { 2515 [NL80211_REKEY_DATA_KEK] = { 2516 .minlen = NL80211_KEK_LEN, 2517 .maxlen = NL80211_KEK_LEN, 2518 }, 2519 [NL80211_REKEY_DATA_KCK] = { 2520 .minlen = NL80211_KCK_LEN, 2521 .maxlen = NL80211_KCK_LEN, 2522 }, 2523 [NL80211_REKEY_DATA_REPLAY_CTR] = { 2524 .minlen = NL80211_REPLAY_CTR_LEN, 2525 .maxlen = NL80211_REPLAY_CTR_LEN, 2526 }, 2527 }; 2528 union wpa_event_data data; 2529 2530 if (!tb[NL80211_ATTR_MAC]) 2531 return; 2532 if (!tb[NL80211_ATTR_REKEY_DATA]) 2533 return; 2534 if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA, 2535 tb[NL80211_ATTR_REKEY_DATA], rekey_policy)) 2536 return; 2537 if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]) 2538 return; 2539 2540 os_memset(&data, 0, sizeof(data)); 2541 data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]); 2542 wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR, 2543 MAC2STR(data.driver_gtk_rekey.bssid)); 2544 data.driver_gtk_rekey.replay_ctr = 2545 nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]); 2546 wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter", 2547 data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN); 2548 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data); 2549} 2550 2551 2552static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv, 2553 struct nlattr **tb) 2554{ 2555 struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE]; 2556 static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = { 2557 [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 }, 2558 [NL80211_PMKSA_CANDIDATE_BSSID] = { 2559 .minlen = ETH_ALEN, 2560 .maxlen = ETH_ALEN, 2561 }, 2562 [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG }, 2563 }; 2564 union wpa_event_data data; 2565 2566 wpa_printf(MSG_DEBUG, "nl80211: PMKSA candidate event"); 2567 2568 if (!tb[NL80211_ATTR_PMKSA_CANDIDATE]) 2569 return; 2570 if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE, 2571 tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy)) 2572 return; 2573 if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] || 2574 !cand[NL80211_PMKSA_CANDIDATE_BSSID]) 2575 return; 2576 2577 os_memset(&data, 0, sizeof(data)); 2578 os_memcpy(data.pmkid_candidate.bssid, 2579 nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN); 2580 data.pmkid_candidate.index = 2581 nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]); 2582 data.pmkid_candidate.preauth = 2583 cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL; 2584 wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data); 2585} 2586 2587 2588static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv, 2589 struct nlattr **tb) 2590{ 2591 union wpa_event_data data; 2592 2593 wpa_printf(MSG_DEBUG, "nl80211: Probe client event"); 2594 2595 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_ACK]) 2596 return; 2597 2598 os_memset(&data, 0, sizeof(data)); 2599 os_memcpy(data.client_poll.addr, 2600 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2601 2602 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_CLIENT_POLL_OK, &data); 2603} 2604 2605 2606static void nl80211_tdls_oper_event(struct wpa_driver_nl80211_data *drv, 2607 struct nlattr **tb) 2608{ 2609 union wpa_event_data data; 2610 2611 wpa_printf(MSG_DEBUG, "nl80211: TDLS operation event"); 2612 2613 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_TDLS_OPERATION]) 2614 return; 2615 2616 os_memset(&data, 0, sizeof(data)); 2617 os_memcpy(data.tdls.peer, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2618 switch (nla_get_u8(tb[NL80211_ATTR_TDLS_OPERATION])) { 2619 case NL80211_TDLS_SETUP: 2620 wpa_printf(MSG_DEBUG, "nl80211: TDLS setup request for peer " 2621 MACSTR, MAC2STR(data.tdls.peer)); 2622 data.tdls.oper = TDLS_REQUEST_SETUP; 2623 break; 2624 case NL80211_TDLS_TEARDOWN: 2625 wpa_printf(MSG_DEBUG, "nl80211: TDLS teardown request for peer " 2626 MACSTR, MAC2STR(data.tdls.peer)); 2627 data.tdls.oper = TDLS_REQUEST_TEARDOWN; 2628 break; 2629 default: 2630 wpa_printf(MSG_DEBUG, "nl80211: Unsupported TDLS operatione " 2631 "event"); 2632 return; 2633 } 2634 if (tb[NL80211_ATTR_REASON_CODE]) { 2635 data.tdls.reason_code = 2636 nla_get_u16(tb[NL80211_ATTR_REASON_CODE]); 2637 } 2638 2639 wpa_supplicant_event(drv->ctx, EVENT_TDLS, &data); 2640} 2641 2642 2643static void nl80211_stop_ap(struct wpa_driver_nl80211_data *drv, 2644 struct nlattr **tb) 2645{ 2646 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_UNAVAILABLE, NULL); 2647} 2648 2649 2650static void nl80211_connect_failed_event(struct wpa_driver_nl80211_data *drv, 2651 struct nlattr **tb) 2652{ 2653 union wpa_event_data data; 2654 u32 reason; 2655 2656 wpa_printf(MSG_DEBUG, "nl80211: Connect failed event"); 2657 2658 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_CONN_FAILED_REASON]) 2659 return; 2660 2661 os_memset(&data, 0, sizeof(data)); 2662 os_memcpy(data.connect_failed_reason.addr, 2663 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2664 2665 reason = nla_get_u32(tb[NL80211_ATTR_CONN_FAILED_REASON]); 2666 switch (reason) { 2667 case NL80211_CONN_FAIL_MAX_CLIENTS: 2668 wpa_printf(MSG_DEBUG, "nl80211: Max client reached"); 2669 data.connect_failed_reason.code = MAX_CLIENT_REACHED; 2670 break; 2671 case NL80211_CONN_FAIL_BLOCKED_CLIENT: 2672 wpa_printf(MSG_DEBUG, "nl80211: Blocked client " MACSTR 2673 " tried to connect", 2674 MAC2STR(data.connect_failed_reason.addr)); 2675 data.connect_failed_reason.code = BLOCKED_CLIENT; 2676 break; 2677 default: 2678 wpa_printf(MSG_DEBUG, "nl8021l: Unknown connect failed reason " 2679 "%u", reason); 2680 return; 2681 } 2682 2683 wpa_supplicant_event(drv->ctx, EVENT_CONNECT_FAILED_REASON, &data); 2684} 2685 2686 2687static void nl80211_radar_event(struct wpa_driver_nl80211_data *drv, 2688 struct nlattr **tb) 2689{ 2690 union wpa_event_data data; 2691 enum nl80211_radar_event event_type; 2692 2693 if (!tb[NL80211_ATTR_WIPHY_FREQ] || !tb[NL80211_ATTR_RADAR_EVENT]) 2694 return; 2695 2696 os_memset(&data, 0, sizeof(data)); 2697 data.dfs_event.freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); 2698 event_type = nla_get_u32(tb[NL80211_ATTR_RADAR_EVENT]); 2699 2700 /* Check HT params */ 2701 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { 2702 data.dfs_event.ht_enabled = 1; 2703 data.dfs_event.chan_offset = 0; 2704 2705 switch (nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])) { 2706 case NL80211_CHAN_NO_HT: 2707 data.dfs_event.ht_enabled = 0; 2708 break; 2709 case NL80211_CHAN_HT20: 2710 break; 2711 case NL80211_CHAN_HT40PLUS: 2712 data.dfs_event.chan_offset = 1; 2713 break; 2714 case NL80211_CHAN_HT40MINUS: 2715 data.dfs_event.chan_offset = -1; 2716 break; 2717 } 2718 } 2719 2720 /* Get VHT params */ 2721 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) 2722 data.dfs_event.chan_width = 2723 convert2width(nla_get_u32( 2724 tb[NL80211_ATTR_CHANNEL_WIDTH])); 2725 if (tb[NL80211_ATTR_CENTER_FREQ1]) 2726 data.dfs_event.cf1 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); 2727 if (tb[NL80211_ATTR_CENTER_FREQ2]) 2728 data.dfs_event.cf2 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); 2729 2730 wpa_printf(MSG_DEBUG, "nl80211: DFS event on freq %d MHz, ht: %d, offset: %d, width: %d, cf1: %dMHz, cf2: %dMHz", 2731 data.dfs_event.freq, data.dfs_event.ht_enabled, 2732 data.dfs_event.chan_offset, data.dfs_event.chan_width, 2733 data.dfs_event.cf1, data.dfs_event.cf2); 2734 2735 switch (event_type) { 2736 case NL80211_RADAR_DETECTED: 2737 wpa_supplicant_event(drv->ctx, EVENT_DFS_RADAR_DETECTED, &data); 2738 break; 2739 case NL80211_RADAR_CAC_FINISHED: 2740 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_FINISHED, &data); 2741 break; 2742 case NL80211_RADAR_CAC_ABORTED: 2743 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_ABORTED, &data); 2744 break; 2745 case NL80211_RADAR_NOP_FINISHED: 2746 wpa_supplicant_event(drv->ctx, EVENT_DFS_NOP_FINISHED, &data); 2747 break; 2748 default: 2749 wpa_printf(MSG_DEBUG, "nl80211: Unknown radar event %d " 2750 "received", event_type); 2751 break; 2752 } 2753} 2754 2755 2756static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb, 2757 int wds) 2758{ 2759 struct wpa_driver_nl80211_data *drv = bss->drv; 2760 union wpa_event_data event; 2761 2762 if (!tb[NL80211_ATTR_MAC]) 2763 return; 2764 2765 os_memset(&event, 0, sizeof(event)); 2766 event.rx_from_unknown.bssid = bss->addr; 2767 event.rx_from_unknown.addr = nla_data(tb[NL80211_ATTR_MAC]); 2768 event.rx_from_unknown.wds = wds; 2769 2770 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 2771} 2772 2773 2774static void qca_nl80211_avoid_freq(struct wpa_driver_nl80211_data *drv, 2775 const u8 *data, size_t len) 2776{ 2777 u32 i, count; 2778 union wpa_event_data event; 2779 struct wpa_freq_range *range = NULL; 2780 const struct qca_avoid_freq_list *freq_range; 2781 2782 freq_range = (const struct qca_avoid_freq_list *) data; 2783 if (len < sizeof(freq_range->count)) 2784 return; 2785 2786 count = freq_range->count; 2787 if (len < sizeof(freq_range->count) + 2788 count * sizeof(struct qca_avoid_freq_range)) { 2789 wpa_printf(MSG_DEBUG, "nl80211: Ignored too short avoid frequency list (len=%u)", 2790 (unsigned int) len); 2791 return; 2792 } 2793 2794 if (count > 0) { 2795 range = os_calloc(count, sizeof(struct wpa_freq_range)); 2796 if (range == NULL) 2797 return; 2798 } 2799 2800 os_memset(&event, 0, sizeof(event)); 2801 for (i = 0; i < count; i++) { 2802 unsigned int idx = event.freq_range.num; 2803 range[idx].min = freq_range->range[i].start_freq; 2804 range[idx].max = freq_range->range[i].end_freq; 2805 wpa_printf(MSG_DEBUG, "nl80211: Avoid frequency range: %u-%u", 2806 range[idx].min, range[idx].max); 2807 if (range[idx].min > range[idx].max) { 2808 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid frequency range"); 2809 continue; 2810 } 2811 event.freq_range.num++; 2812 } 2813 event.freq_range.range = range; 2814 2815 wpa_supplicant_event(drv->ctx, EVENT_AVOID_FREQUENCIES, &event); 2816 2817 os_free(range); 2818} 2819 2820 2821static void nl80211_vendor_event_qca(struct wpa_driver_nl80211_data *drv, 2822 u32 subcmd, u8 *data, size_t len) 2823{ 2824 switch (subcmd) { 2825 case QCA_NL80211_VENDOR_SUBCMD_AVOID_FREQUENCY: 2826 qca_nl80211_avoid_freq(drv, data, len); 2827 break; 2828 default: 2829 wpa_printf(MSG_DEBUG, 2830 "nl80211: Ignore unsupported QCA vendor event %u", 2831 subcmd); 2832 break; 2833 } 2834} 2835 2836 2837static void nl80211_vendor_event(struct wpa_driver_nl80211_data *drv, 2838 struct nlattr **tb) 2839{ 2840 u32 vendor_id, subcmd, wiphy = 0; 2841 int wiphy_idx; 2842 u8 *data = NULL; 2843 size_t len = 0; 2844 2845 if (!tb[NL80211_ATTR_VENDOR_ID] || 2846 !tb[NL80211_ATTR_VENDOR_SUBCMD]) 2847 return; 2848 2849 vendor_id = nla_get_u32(tb[NL80211_ATTR_VENDOR_ID]); 2850 subcmd = nla_get_u32(tb[NL80211_ATTR_VENDOR_SUBCMD]); 2851 2852 if (tb[NL80211_ATTR_WIPHY]) 2853 wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]); 2854 2855 wpa_printf(MSG_DEBUG, "nl80211: Vendor event: wiphy=%u vendor_id=0x%x subcmd=%u", 2856 wiphy, vendor_id, subcmd); 2857 2858 if (tb[NL80211_ATTR_VENDOR_DATA]) { 2859 data = nla_data(tb[NL80211_ATTR_VENDOR_DATA]); 2860 len = nla_len(tb[NL80211_ATTR_VENDOR_DATA]); 2861 wpa_hexdump(MSG_MSGDUMP, "nl80211: Vendor data", data, len); 2862 } 2863 2864 wiphy_idx = nl80211_get_wiphy_index(drv->first_bss); 2865 if (wiphy_idx >= 0 && wiphy_idx != (int) wiphy) { 2866 wpa_printf(MSG_DEBUG, "nl80211: Ignore vendor event for foreign wiphy %u (own: %d)", 2867 wiphy, wiphy_idx); 2868 return; 2869 } 2870 2871 switch (vendor_id) { 2872 case OUI_QCA: 2873 nl80211_vendor_event_qca(drv, subcmd, data, len); 2874 break; 2875 default: 2876 wpa_printf(MSG_DEBUG, "nl80211: Ignore unsupported vendor event"); 2877 break; 2878 } 2879} 2880 2881 2882static void do_process_drv_event(struct i802_bss *bss, int cmd, 2883 struct nlattr **tb) 2884{ 2885 struct wpa_driver_nl80211_data *drv = bss->drv; 2886 union wpa_event_data data; 2887 2888 wpa_printf(MSG_DEBUG, "nl80211: Drv Event %d (%s) received for %s", 2889 cmd, nl80211_command_to_string(cmd), bss->ifname); 2890 2891 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED && 2892 (cmd == NL80211_CMD_NEW_SCAN_RESULTS || 2893 cmd == NL80211_CMD_SCAN_ABORTED)) { 2894 wpa_driver_nl80211_set_mode(drv->first_bss, 2895 drv->ap_scan_as_station); 2896 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 2897 } 2898 2899 switch (cmd) { 2900 case NL80211_CMD_TRIGGER_SCAN: 2901 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan trigger"); 2902 drv->scan_state = SCAN_STARTED; 2903 if (drv->scan_for_auth) { 2904 /* 2905 * Cannot indicate EVENT_SCAN_STARTED here since we skip 2906 * EVENT_SCAN_RESULTS in scan_for_auth case and the 2907 * upper layer implementation could get confused about 2908 * scanning state. 2909 */ 2910 wpa_printf(MSG_DEBUG, "nl80211: Do not indicate scan-start event due to internal scan_for_auth"); 2911 break; 2912 } 2913 wpa_supplicant_event(drv->ctx, EVENT_SCAN_STARTED, NULL); 2914 break; 2915 case NL80211_CMD_START_SCHED_SCAN: 2916 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan started"); 2917 drv->scan_state = SCHED_SCAN_STARTED; 2918 break; 2919 case NL80211_CMD_SCHED_SCAN_STOPPED: 2920 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan stopped"); 2921 drv->scan_state = SCHED_SCAN_STOPPED; 2922 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL); 2923 break; 2924 case NL80211_CMD_NEW_SCAN_RESULTS: 2925 wpa_dbg(drv->ctx, MSG_DEBUG, 2926 "nl80211: New scan results available"); 2927 drv->scan_state = SCAN_COMPLETED; 2928 drv->scan_complete_events = 1; 2929 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 2930 drv->ctx); 2931 send_scan_event(drv, 0, tb); 2932 break; 2933 case NL80211_CMD_SCHED_SCAN_RESULTS: 2934 wpa_dbg(drv->ctx, MSG_DEBUG, 2935 "nl80211: New sched scan results available"); 2936 drv->scan_state = SCHED_SCAN_RESULTS; 2937 send_scan_event(drv, 0, tb); 2938 break; 2939 case NL80211_CMD_SCAN_ABORTED: 2940 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan aborted"); 2941 drv->scan_state = SCAN_ABORTED; 2942 /* 2943 * Need to indicate that scan results are available in order 2944 * not to make wpa_supplicant stop its scanning. 2945 */ 2946 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 2947 drv->ctx); 2948 send_scan_event(drv, 1, tb); 2949 break; 2950 case NL80211_CMD_AUTHENTICATE: 2951 case NL80211_CMD_ASSOCIATE: 2952 case NL80211_CMD_DEAUTHENTICATE: 2953 case NL80211_CMD_DISASSOCIATE: 2954 case NL80211_CMD_FRAME_TX_STATUS: 2955 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 2956 case NL80211_CMD_UNPROT_DISASSOCIATE: 2957 mlme_event(bss, cmd, tb[NL80211_ATTR_FRAME], 2958 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 2959 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 2960 tb[NL80211_ATTR_COOKIE], 2961 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 2962 break; 2963 case NL80211_CMD_CONNECT: 2964 case NL80211_CMD_ROAM: 2965 mlme_event_connect(drv, cmd, 2966 tb[NL80211_ATTR_STATUS_CODE], 2967 tb[NL80211_ATTR_MAC], 2968 tb[NL80211_ATTR_REQ_IE], 2969 tb[NL80211_ATTR_RESP_IE]); 2970 break; 2971 case NL80211_CMD_CH_SWITCH_NOTIFY: 2972 mlme_event_ch_switch(drv, 2973 tb[NL80211_ATTR_IFINDEX], 2974 tb[NL80211_ATTR_WIPHY_FREQ], 2975 tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE], 2976 tb[NL80211_ATTR_CHANNEL_WIDTH], 2977 tb[NL80211_ATTR_CENTER_FREQ1], 2978 tb[NL80211_ATTR_CENTER_FREQ2]); 2979 break; 2980 case NL80211_CMD_DISCONNECT: 2981 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE], 2982 tb[NL80211_ATTR_MAC], 2983 tb[NL80211_ATTR_DISCONNECTED_BY_AP]); 2984 break; 2985 case NL80211_CMD_MICHAEL_MIC_FAILURE: 2986 mlme_event_michael_mic_failure(bss, tb); 2987 break; 2988 case NL80211_CMD_JOIN_IBSS: 2989 mlme_event_join_ibss(drv, tb); 2990 break; 2991 case NL80211_CMD_REMAIN_ON_CHANNEL: 2992 mlme_event_remain_on_channel(drv, 0, tb); 2993 break; 2994 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL: 2995 mlme_event_remain_on_channel(drv, 1, tb); 2996 break; 2997 case NL80211_CMD_NOTIFY_CQM: 2998 nl80211_cqm_event(drv, tb); 2999 break; 3000 case NL80211_CMD_REG_CHANGE: 3001 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change"); 3002 if (tb[NL80211_ATTR_REG_INITIATOR] == NULL) 3003 break; 3004 os_memset(&data, 0, sizeof(data)); 3005 switch (nla_get_u8(tb[NL80211_ATTR_REG_INITIATOR])) { 3006 case NL80211_REGDOM_SET_BY_CORE: 3007 data.channel_list_changed.initiator = 3008 REGDOM_SET_BY_CORE; 3009 break; 3010 case NL80211_REGDOM_SET_BY_USER: 3011 data.channel_list_changed.initiator = 3012 REGDOM_SET_BY_USER; 3013 break; 3014 case NL80211_REGDOM_SET_BY_DRIVER: 3015 data.channel_list_changed.initiator = 3016 REGDOM_SET_BY_DRIVER; 3017 break; 3018 case NL80211_REGDOM_SET_BY_COUNTRY_IE: 3019 data.channel_list_changed.initiator = 3020 REGDOM_SET_BY_COUNTRY_IE; 3021 break; 3022 default: 3023 wpa_printf(MSG_DEBUG, "nl80211: Unknown reg change initiator %d received", 3024 nla_get_u8(tb[NL80211_ATTR_REG_INITIATOR])); 3025 break; 3026 } 3027 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 3028 &data); 3029 break; 3030 case NL80211_CMD_REG_BEACON_HINT: 3031 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint"); 3032 os_memset(&data, 0, sizeof(data)); 3033 data.channel_list_changed.initiator = REGDOM_BEACON_HINT; 3034 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 3035 &data); 3036 break; 3037 case NL80211_CMD_NEW_STATION: 3038 nl80211_new_station_event(drv, tb); 3039 break; 3040 case NL80211_CMD_DEL_STATION: 3041 nl80211_del_station_event(drv, tb); 3042 break; 3043 case NL80211_CMD_SET_REKEY_OFFLOAD: 3044 nl80211_rekey_offload_event(drv, tb); 3045 break; 3046 case NL80211_CMD_PMKSA_CANDIDATE: 3047 nl80211_pmksa_candidate_event(drv, tb); 3048 break; 3049 case NL80211_CMD_PROBE_CLIENT: 3050 nl80211_client_probe_event(drv, tb); 3051 break; 3052 case NL80211_CMD_TDLS_OPER: 3053 nl80211_tdls_oper_event(drv, tb); 3054 break; 3055 case NL80211_CMD_CONN_FAILED: 3056 nl80211_connect_failed_event(drv, tb); 3057 break; 3058 case NL80211_CMD_FT_EVENT: 3059 mlme_event_ft_event(drv, tb); 3060 break; 3061 case NL80211_CMD_RADAR_DETECT: 3062 nl80211_radar_event(drv, tb); 3063 break; 3064 case NL80211_CMD_STOP_AP: 3065 nl80211_stop_ap(drv, tb); 3066 break; 3067 case NL80211_CMD_VENDOR: 3068 nl80211_vendor_event(drv, tb); 3069 break; 3070 default: 3071 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Ignored unknown event " 3072 "(cmd=%d)", cmd); 3073 break; 3074 } 3075} 3076 3077 3078static int process_drv_event(struct nl_msg *msg, void *arg) 3079{ 3080 struct wpa_driver_nl80211_data *drv = arg; 3081 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3082 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3083 struct i802_bss *bss; 3084 int ifidx = -1; 3085 3086 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3087 genlmsg_attrlen(gnlh, 0), NULL); 3088 3089 if (tb[NL80211_ATTR_IFINDEX]) { 3090 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 3091 3092 for (bss = drv->first_bss; bss; bss = bss->next) 3093 if (ifidx == -1 || ifidx == bss->ifindex) { 3094 do_process_drv_event(bss, gnlh->cmd, tb); 3095 return NL_SKIP; 3096 } 3097 wpa_printf(MSG_DEBUG, 3098 "nl80211: Ignored event (cmd=%d) for foreign interface (ifindex %d)", 3099 gnlh->cmd, ifidx); 3100 } else if (tb[NL80211_ATTR_WDEV]) { 3101 u64 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 3102 wpa_printf(MSG_DEBUG, "nl80211: Process event on P2P device"); 3103 for (bss = drv->first_bss; bss; bss = bss->next) { 3104 if (bss->wdev_id_set && wdev_id == bss->wdev_id) { 3105 do_process_drv_event(bss, gnlh->cmd, tb); 3106 return NL_SKIP; 3107 } 3108 } 3109 wpa_printf(MSG_DEBUG, 3110 "nl80211: Ignored event (cmd=%d) for foreign interface (wdev 0x%llx)", 3111 gnlh->cmd, (long long unsigned int) wdev_id); 3112 } 3113 3114 return NL_SKIP; 3115} 3116 3117 3118static int process_global_event(struct nl_msg *msg, void *arg) 3119{ 3120 struct nl80211_global *global = arg; 3121 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3122 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3123 struct wpa_driver_nl80211_data *drv, *tmp; 3124 int ifidx = -1; 3125 struct i802_bss *bss; 3126 u64 wdev_id = 0; 3127 int wdev_id_set = 0; 3128 3129 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3130 genlmsg_attrlen(gnlh, 0), NULL); 3131 3132 if (tb[NL80211_ATTR_IFINDEX]) 3133 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 3134 else if (tb[NL80211_ATTR_WDEV]) { 3135 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 3136 wdev_id_set = 1; 3137 } 3138 3139 dl_list_for_each_safe(drv, tmp, &global->interfaces, 3140 struct wpa_driver_nl80211_data, list) { 3141 for (bss = drv->first_bss; bss; bss = bss->next) { 3142 if ((ifidx == -1 && !wdev_id_set) || 3143 ifidx == bss->ifindex || 3144 (wdev_id_set && bss->wdev_id_set && 3145 wdev_id == bss->wdev_id)) { 3146 do_process_drv_event(bss, gnlh->cmd, tb); 3147 return NL_SKIP; 3148 } 3149 } 3150 } 3151 3152 return NL_SKIP; 3153} 3154 3155 3156static int process_bss_event(struct nl_msg *msg, void *arg) 3157{ 3158 struct i802_bss *bss = arg; 3159 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3160 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3161 3162 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3163 genlmsg_attrlen(gnlh, 0), NULL); 3164 3165 wpa_printf(MSG_DEBUG, "nl80211: BSS Event %d (%s) received for %s", 3166 gnlh->cmd, nl80211_command_to_string(gnlh->cmd), 3167 bss->ifname); 3168 3169 switch (gnlh->cmd) { 3170 case NL80211_CMD_FRAME: 3171 case NL80211_CMD_FRAME_TX_STATUS: 3172 mlme_event(bss, gnlh->cmd, tb[NL80211_ATTR_FRAME], 3173 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 3174 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 3175 tb[NL80211_ATTR_COOKIE], 3176 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 3177 break; 3178 case NL80211_CMD_UNEXPECTED_FRAME: 3179 nl80211_spurious_frame(bss, tb, 0); 3180 break; 3181 case NL80211_CMD_UNEXPECTED_4ADDR_FRAME: 3182 nl80211_spurious_frame(bss, tb, 1); 3183 break; 3184 default: 3185 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event " 3186 "(cmd=%d)", gnlh->cmd); 3187 break; 3188 } 3189 3190 return NL_SKIP; 3191} 3192 3193 3194static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx, 3195 void *handle) 3196{ 3197 struct nl_cb *cb = eloop_ctx; 3198 int res; 3199 3200 wpa_printf(MSG_MSGDUMP, "nl80211: Event message available"); 3201 3202 res = nl_recvmsgs(handle, cb); 3203 if (res) { 3204 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d", 3205 __func__, res); 3206 } 3207} 3208 3209 3210/** 3211 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain 3212 * @priv: driver_nl80211 private data 3213 * @alpha2_arg: country to which to switch to 3214 * Returns: 0 on success, -1 on failure 3215 * 3216 * This asks nl80211 to set the regulatory domain for given 3217 * country ISO / IEC alpha2. 3218 */ 3219static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg) 3220{ 3221 struct i802_bss *bss = priv; 3222 struct wpa_driver_nl80211_data *drv = bss->drv; 3223 char alpha2[3]; 3224 struct nl_msg *msg; 3225 3226 msg = nlmsg_alloc(); 3227 if (!msg) 3228 return -ENOMEM; 3229 3230 alpha2[0] = alpha2_arg[0]; 3231 alpha2[1] = alpha2_arg[1]; 3232 alpha2[2] = '\0'; 3233 3234 nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG); 3235 3236 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2); 3237 if (send_and_recv_msgs(drv, msg, NULL, NULL)) 3238 return -EINVAL; 3239 return 0; 3240nla_put_failure: 3241 nlmsg_free(msg); 3242 return -EINVAL; 3243} 3244 3245 3246static int nl80211_get_country(struct nl_msg *msg, void *arg) 3247{ 3248 char *alpha2 = arg; 3249 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 3250 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3251 3252 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3253 genlmsg_attrlen(gnlh, 0), NULL); 3254 if (!tb_msg[NL80211_ATTR_REG_ALPHA2]) { 3255 wpa_printf(MSG_DEBUG, "nl80211: No country information available"); 3256 return NL_SKIP; 3257 } 3258 os_strlcpy(alpha2, nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]), 3); 3259 return NL_SKIP; 3260} 3261 3262 3263static int wpa_driver_nl80211_get_country(void *priv, char *alpha2) 3264{ 3265 struct i802_bss *bss = priv; 3266 struct wpa_driver_nl80211_data *drv = bss->drv; 3267 struct nl_msg *msg; 3268 int ret; 3269 3270 msg = nlmsg_alloc(); 3271 if (!msg) 3272 return -ENOMEM; 3273 3274 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 3275 alpha2[0] = '\0'; 3276 ret = send_and_recv_msgs(drv, msg, nl80211_get_country, alpha2); 3277 if (!alpha2[0]) 3278 ret = -1; 3279 3280 return ret; 3281} 3282 3283 3284static int protocol_feature_handler(struct nl_msg *msg, void *arg) 3285{ 3286 u32 *feat = arg; 3287 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 3288 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3289 3290 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3291 genlmsg_attrlen(gnlh, 0), NULL); 3292 3293 if (tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]) 3294 *feat = nla_get_u32(tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]); 3295 3296 return NL_SKIP; 3297} 3298 3299 3300static u32 get_nl80211_protocol_features(struct wpa_driver_nl80211_data *drv) 3301{ 3302 u32 feat = 0; 3303 struct nl_msg *msg; 3304 3305 msg = nlmsg_alloc(); 3306 if (!msg) 3307 goto nla_put_failure; 3308 3309 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_PROTOCOL_FEATURES); 3310 if (send_and_recv_msgs(drv, msg, protocol_feature_handler, &feat) == 0) 3311 return feat; 3312 3313 msg = NULL; 3314nla_put_failure: 3315 nlmsg_free(msg); 3316 return 0; 3317} 3318 3319 3320struct wiphy_info_data { 3321 struct wpa_driver_nl80211_data *drv; 3322 struct wpa_driver_capa *capa; 3323 3324 unsigned int num_multichan_concurrent; 3325 3326 unsigned int error:1; 3327 unsigned int device_ap_sme:1; 3328 unsigned int poll_command_supported:1; 3329 unsigned int data_tx_status:1; 3330 unsigned int monitor_supported:1; 3331 unsigned int auth_supported:1; 3332 unsigned int connect_supported:1; 3333 unsigned int p2p_go_supported:1; 3334 unsigned int p2p_client_supported:1; 3335 unsigned int p2p_concurrent:1; 3336 unsigned int channel_switch_supported:1; 3337 unsigned int set_qos_map_supported:1; 3338}; 3339 3340 3341static unsigned int probe_resp_offload_support(int supp_protocols) 3342{ 3343 unsigned int prot = 0; 3344 3345 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS) 3346 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS; 3347 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2) 3348 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2; 3349 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P) 3350 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P; 3351 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U) 3352 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING; 3353 3354 return prot; 3355} 3356 3357 3358static void wiphy_info_supported_iftypes(struct wiphy_info_data *info, 3359 struct nlattr *tb) 3360{ 3361 struct nlattr *nl_mode; 3362 int i; 3363 3364 if (tb == NULL) 3365 return; 3366 3367 nla_for_each_nested(nl_mode, tb, i) { 3368 switch (nla_type(nl_mode)) { 3369 case NL80211_IFTYPE_AP: 3370 info->capa->flags |= WPA_DRIVER_FLAGS_AP; 3371 break; 3372 case NL80211_IFTYPE_ADHOC: 3373 info->capa->flags |= WPA_DRIVER_FLAGS_IBSS; 3374 break; 3375 case NL80211_IFTYPE_P2P_DEVICE: 3376 info->capa->flags |= 3377 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 3378 break; 3379 case NL80211_IFTYPE_P2P_GO: 3380 info->p2p_go_supported = 1; 3381 break; 3382 case NL80211_IFTYPE_P2P_CLIENT: 3383 info->p2p_client_supported = 1; 3384 break; 3385 case NL80211_IFTYPE_MONITOR: 3386 info->monitor_supported = 1; 3387 break; 3388 } 3389 } 3390} 3391 3392 3393static int wiphy_info_iface_comb_process(struct wiphy_info_data *info, 3394 struct nlattr *nl_combi) 3395{ 3396 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB]; 3397 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT]; 3398 struct nlattr *nl_limit, *nl_mode; 3399 int err, rem_limit, rem_mode; 3400 int combination_has_p2p = 0, combination_has_mgd = 0; 3401 static struct nla_policy 3402 iface_combination_policy[NUM_NL80211_IFACE_COMB] = { 3403 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED }, 3404 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 }, 3405 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG }, 3406 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 }, 3407 [NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 }, 3408 }, 3409 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = { 3410 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED }, 3411 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 }, 3412 }; 3413 3414 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB, 3415 nl_combi, iface_combination_policy); 3416 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] || 3417 !tb_comb[NL80211_IFACE_COMB_MAXNUM] || 3418 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) 3419 return 0; /* broken combination */ 3420 3421 if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS]) 3422 info->capa->flags |= WPA_DRIVER_FLAGS_RADAR; 3423 3424 nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS], 3425 rem_limit) { 3426 err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT, 3427 nl_limit, iface_limit_policy); 3428 if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES]) 3429 return 0; /* broken combination */ 3430 3431 nla_for_each_nested(nl_mode, 3432 tb_limit[NL80211_IFACE_LIMIT_TYPES], 3433 rem_mode) { 3434 int ift = nla_type(nl_mode); 3435 if (ift == NL80211_IFTYPE_P2P_GO || 3436 ift == NL80211_IFTYPE_P2P_CLIENT) 3437 combination_has_p2p = 1; 3438 if (ift == NL80211_IFTYPE_STATION) 3439 combination_has_mgd = 1; 3440 } 3441 if (combination_has_p2p && combination_has_mgd) 3442 break; 3443 } 3444 3445 if (combination_has_p2p && combination_has_mgd) { 3446 info->p2p_concurrent = 1; 3447 info->num_multichan_concurrent = 3448 nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]); 3449 return 1; 3450 } 3451 3452 return 0; 3453} 3454 3455 3456static void wiphy_info_iface_comb(struct wiphy_info_data *info, 3457 struct nlattr *tb) 3458{ 3459 struct nlattr *nl_combi; 3460 int rem_combi; 3461 3462 if (tb == NULL) 3463 return; 3464 3465 nla_for_each_nested(nl_combi, tb, rem_combi) { 3466 if (wiphy_info_iface_comb_process(info, nl_combi) > 0) 3467 break; 3468 } 3469} 3470 3471 3472static void wiphy_info_supp_cmds(struct wiphy_info_data *info, 3473 struct nlattr *tb) 3474{ 3475 struct nlattr *nl_cmd; 3476 int i; 3477 3478 if (tb == NULL) 3479 return; 3480 3481 nla_for_each_nested(nl_cmd, tb, i) { 3482 switch (nla_get_u32(nl_cmd)) { 3483 case NL80211_CMD_AUTHENTICATE: 3484 info->auth_supported = 1; 3485 break; 3486 case NL80211_CMD_CONNECT: 3487 info->connect_supported = 1; 3488 break; 3489 case NL80211_CMD_START_SCHED_SCAN: 3490 info->capa->sched_scan_supported = 1; 3491 break; 3492 case NL80211_CMD_PROBE_CLIENT: 3493 info->poll_command_supported = 1; 3494 break; 3495 case NL80211_CMD_CHANNEL_SWITCH: 3496 info->channel_switch_supported = 1; 3497 break; 3498 case NL80211_CMD_SET_QOS_MAP: 3499 info->set_qos_map_supported = 1; 3500 break; 3501 } 3502 } 3503} 3504 3505 3506static void wiphy_info_cipher_suites(struct wiphy_info_data *info, 3507 struct nlattr *tb) 3508{ 3509 int i, num; 3510 u32 *ciphers; 3511 3512 if (tb == NULL) 3513 return; 3514 3515 num = nla_len(tb) / sizeof(u32); 3516 ciphers = nla_data(tb); 3517 for (i = 0; i < num; i++) { 3518 u32 c = ciphers[i]; 3519 3520 wpa_printf(MSG_DEBUG, "nl80211: Supported cipher %02x-%02x-%02x:%d", 3521 c >> 24, (c >> 16) & 0xff, 3522 (c >> 8) & 0xff, c & 0xff); 3523 switch (c) { 3524 case WLAN_CIPHER_SUITE_CCMP_256: 3525 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP_256; 3526 break; 3527 case WLAN_CIPHER_SUITE_GCMP_256: 3528 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP_256; 3529 break; 3530 case WLAN_CIPHER_SUITE_CCMP: 3531 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP; 3532 break; 3533 case WLAN_CIPHER_SUITE_GCMP: 3534 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP; 3535 break; 3536 case WLAN_CIPHER_SUITE_TKIP: 3537 info->capa->enc |= WPA_DRIVER_CAPA_ENC_TKIP; 3538 break; 3539 case WLAN_CIPHER_SUITE_WEP104: 3540 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP104; 3541 break; 3542 case WLAN_CIPHER_SUITE_WEP40: 3543 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP40; 3544 break; 3545 case WLAN_CIPHER_SUITE_AES_CMAC: 3546 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP; 3547 break; 3548 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 3549 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_128; 3550 break; 3551 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 3552 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_256; 3553 break; 3554 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 3555 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_CMAC_256; 3556 break; 3557 case WLAN_CIPHER_SUITE_NO_GROUP_ADDR: 3558 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GTK_NOT_USED; 3559 break; 3560 } 3561 } 3562} 3563 3564 3565static void wiphy_info_max_roc(struct wpa_driver_capa *capa, 3566 struct nlattr *tb) 3567{ 3568 if (tb) 3569 capa->max_remain_on_chan = nla_get_u32(tb); 3570} 3571 3572 3573static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls, 3574 struct nlattr *ext_setup) 3575{ 3576 if (tdls == NULL) 3577 return; 3578 3579 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported"); 3580 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT; 3581 3582 if (ext_setup) { 3583 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup"); 3584 capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP; 3585 } 3586} 3587 3588 3589static void wiphy_info_feature_flags(struct wiphy_info_data *info, 3590 struct nlattr *tb) 3591{ 3592 u32 flags; 3593 struct wpa_driver_capa *capa = info->capa; 3594 3595 if (tb == NULL) 3596 return; 3597 3598 flags = nla_get_u32(tb); 3599 3600 if (flags & NL80211_FEATURE_SK_TX_STATUS) 3601 info->data_tx_status = 1; 3602 3603 if (flags & NL80211_FEATURE_INACTIVITY_TIMER) 3604 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER; 3605 3606 if (flags & NL80211_FEATURE_SAE) 3607 capa->flags |= WPA_DRIVER_FLAGS_SAE; 3608 3609 if (flags & NL80211_FEATURE_NEED_OBSS_SCAN) 3610 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN; 3611} 3612 3613 3614static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa, 3615 struct nlattr *tb) 3616{ 3617 u32 protocols; 3618 3619 if (tb == NULL) 3620 return; 3621 3622 protocols = nla_get_u32(tb); 3623 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP " 3624 "mode"); 3625 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD; 3626 capa->probe_resp_offloads = probe_resp_offload_support(protocols); 3627} 3628 3629 3630static int wiphy_info_handler(struct nl_msg *msg, void *arg) 3631{ 3632 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3633 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3634 struct wiphy_info_data *info = arg; 3635 struct wpa_driver_capa *capa = info->capa; 3636 struct wpa_driver_nl80211_data *drv = info->drv; 3637 3638 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3639 genlmsg_attrlen(gnlh, 0), NULL); 3640 3641 if (tb[NL80211_ATTR_WIPHY_NAME]) 3642 os_strlcpy(drv->phyname, 3643 nla_get_string(tb[NL80211_ATTR_WIPHY_NAME]), 3644 sizeof(drv->phyname)); 3645 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]) 3646 capa->max_scan_ssids = 3647 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]); 3648 3649 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]) 3650 capa->max_sched_scan_ssids = 3651 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]); 3652 3653 if (tb[NL80211_ATTR_MAX_MATCH_SETS]) 3654 capa->max_match_sets = 3655 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]); 3656 3657 if (tb[NL80211_ATTR_MAC_ACL_MAX]) 3658 capa->max_acl_mac_addrs = 3659 nla_get_u8(tb[NL80211_ATTR_MAC_ACL_MAX]); 3660 3661 wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]); 3662 wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]); 3663 wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]); 3664 wiphy_info_cipher_suites(info, tb[NL80211_ATTR_CIPHER_SUITES]); 3665 3666 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) { 3667 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based " 3668 "off-channel TX"); 3669 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX; 3670 } 3671 3672 if (tb[NL80211_ATTR_ROAM_SUPPORT]) { 3673 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming"); 3674 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION; 3675 } 3676 3677 wiphy_info_max_roc(capa, 3678 tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]); 3679 3680 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD]) 3681 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD; 3682 3683 wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT], 3684 tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]); 3685 3686 if (tb[NL80211_ATTR_DEVICE_AP_SME]) 3687 info->device_ap_sme = 1; 3688 3689 wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]); 3690 wiphy_info_probe_resp_offload(capa, 3691 tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]); 3692 3693 if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] && 3694 drv->extended_capa == NULL) { 3695 drv->extended_capa = 3696 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3697 if (drv->extended_capa) { 3698 os_memcpy(drv->extended_capa, 3699 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 3700 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3701 drv->extended_capa_len = 3702 nla_len(tb[NL80211_ATTR_EXT_CAPA]); 3703 } 3704 drv->extended_capa_mask = 3705 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3706 if (drv->extended_capa_mask) { 3707 os_memcpy(drv->extended_capa_mask, 3708 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 3709 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3710 } else { 3711 os_free(drv->extended_capa); 3712 drv->extended_capa = NULL; 3713 drv->extended_capa_len = 0; 3714 } 3715 } 3716 3717 if (tb[NL80211_ATTR_VENDOR_DATA]) { 3718 struct nlattr *nl; 3719 int rem; 3720 3721 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_DATA], rem) { 3722 struct nl80211_vendor_cmd_info *vinfo; 3723 if (nla_len(nl) != sizeof(*vinfo)) { 3724 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info"); 3725 continue; 3726 } 3727 vinfo = nla_data(nl); 3728 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor command: vendor_id=0x%x subcmd=%u", 3729 vinfo->vendor_id, vinfo->subcmd); 3730 } 3731 } 3732 3733 if (tb[NL80211_ATTR_VENDOR_EVENTS]) { 3734 struct nlattr *nl; 3735 int rem; 3736 3737 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_EVENTS], rem) { 3738 struct nl80211_vendor_cmd_info *vinfo; 3739 if (nla_len(nl) != sizeof(*vinfo)) { 3740 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info"); 3741 continue; 3742 } 3743 vinfo = nla_data(nl); 3744 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor event: vendor_id=0x%x subcmd=%u", 3745 vinfo->vendor_id, vinfo->subcmd); 3746 } 3747 } 3748 3749 return NL_SKIP; 3750} 3751 3752 3753static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv, 3754 struct wiphy_info_data *info) 3755{ 3756 u32 feat; 3757 struct nl_msg *msg; 3758 3759 os_memset(info, 0, sizeof(*info)); 3760 info->capa = &drv->capa; 3761 info->drv = drv; 3762 3763 msg = nlmsg_alloc(); 3764 if (!msg) 3765 return -1; 3766 3767 feat = get_nl80211_protocol_features(drv); 3768 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 3769 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 3770 else 3771 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 3772 3773 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 3774 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 3775 goto nla_put_failure; 3776 3777 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info)) 3778 return -1; 3779 3780 if (info->auth_supported) 3781 drv->capa.flags |= WPA_DRIVER_FLAGS_SME; 3782 else if (!info->connect_supported) { 3783 wpa_printf(MSG_INFO, "nl80211: Driver does not support " 3784 "authentication/association or connect commands"); 3785 info->error = 1; 3786 } 3787 3788 if (info->p2p_go_supported && info->p2p_client_supported) 3789 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE; 3790 if (info->p2p_concurrent) { 3791 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 3792 "interface (driver advertised support)"); 3793 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 3794 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 3795 } 3796 if (info->num_multichan_concurrent > 1) { 3797 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel " 3798 "concurrent (driver advertised support)"); 3799 drv->capa.num_multichan_concurrent = 3800 info->num_multichan_concurrent; 3801 } 3802 3803 /* default to 5000 since early versions of mac80211 don't set it */ 3804 if (!drv->capa.max_remain_on_chan) 3805 drv->capa.max_remain_on_chan = 5000; 3806 3807 if (info->channel_switch_supported) 3808 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_CSA; 3809 3810 return 0; 3811nla_put_failure: 3812 nlmsg_free(msg); 3813 return -1; 3814} 3815 3816 3817static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv) 3818{ 3819 struct wiphy_info_data info; 3820 if (wpa_driver_nl80211_get_info(drv, &info)) 3821 return -1; 3822 3823 if (info.error) 3824 return -1; 3825 3826 drv->has_capability = 1; 3827 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA | 3828 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK | 3829 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 | 3830 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK; 3831 drv->capa.auth = WPA_DRIVER_AUTH_OPEN | 3832 WPA_DRIVER_AUTH_SHARED | 3833 WPA_DRIVER_AUTH_LEAP; 3834 3835 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES; 3836 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE; 3837 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3838 3839 /* 3840 * As all cfg80211 drivers must support cases where the AP interface is 3841 * removed without the knowledge of wpa_supplicant/hostapd, e.g., in 3842 * case that the user space daemon has crashed, they must be able to 3843 * cleanup all stations and key entries in the AP tear down flow. Thus, 3844 * this flag can/should always be set for cfg80211 drivers. 3845 */ 3846 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT; 3847 3848 if (!info.device_ap_sme) { 3849 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS; 3850 3851 /* 3852 * No AP SME is currently assumed to also indicate no AP MLME 3853 * in the driver/firmware. 3854 */ 3855 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME; 3856 } 3857 3858 drv->device_ap_sme = info.device_ap_sme; 3859 drv->poll_command_supported = info.poll_command_supported; 3860 drv->data_tx_status = info.data_tx_status; 3861 if (info.set_qos_map_supported) 3862 drv->capa.flags |= WPA_DRIVER_FLAGS_QOS_MAPPING; 3863 3864 /* 3865 * If poll command and tx status are supported, mac80211 is new enough 3866 * to have everything we need to not need monitor interfaces. 3867 */ 3868 drv->use_monitor = !info.poll_command_supported || !info.data_tx_status; 3869 3870 if (drv->device_ap_sme && drv->use_monitor) { 3871 /* 3872 * Non-mac80211 drivers may not support monitor interface. 3873 * Make sure we do not get stuck with incorrect capability here 3874 * by explicitly testing this. 3875 */ 3876 if (!info.monitor_supported) { 3877 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor " 3878 "with device_ap_sme since no monitor mode " 3879 "support detected"); 3880 drv->use_monitor = 0; 3881 } 3882 } 3883 3884 /* 3885 * If we aren't going to use monitor interfaces, but the 3886 * driver doesn't support data TX status, we won't get TX 3887 * status for EAPOL frames. 3888 */ 3889 if (!drv->use_monitor && !info.data_tx_status) 3890 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3891 3892 return 0; 3893} 3894 3895 3896#ifdef ANDROID 3897static int android_genl_ctrl_resolve(struct nl_handle *handle, 3898 const char *name) 3899{ 3900 /* 3901 * Android ICS has very minimal genl_ctrl_resolve() implementation, so 3902 * need to work around that. 3903 */ 3904 struct nl_cache *cache = NULL; 3905 struct genl_family *nl80211 = NULL; 3906 int id = -1; 3907 3908 if (genl_ctrl_alloc_cache(handle, &cache) < 0) { 3909 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic " 3910 "netlink cache"); 3911 goto fail; 3912 } 3913 3914 nl80211 = genl_ctrl_search_by_name(cache, name); 3915 if (nl80211 == NULL) 3916 goto fail; 3917 3918 id = genl_family_get_id(nl80211); 3919 3920fail: 3921 if (nl80211) 3922 genl_family_put(nl80211); 3923 if (cache) 3924 nl_cache_free(cache); 3925 3926 return id; 3927} 3928#define genl_ctrl_resolve android_genl_ctrl_resolve 3929#endif /* ANDROID */ 3930 3931 3932static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global) 3933{ 3934 int ret; 3935 3936 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3937 if (global->nl_cb == NULL) { 3938 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " 3939 "callbacks"); 3940 return -1; 3941 } 3942 3943 global->nl = nl_create_handle(global->nl_cb, "nl"); 3944 if (global->nl == NULL) 3945 goto err; 3946 3947 global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211"); 3948 if (global->nl80211_id < 0) { 3949 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not " 3950 "found"); 3951 goto err; 3952 } 3953 3954 global->nl_event = nl_create_handle(global->nl_cb, "event"); 3955 if (global->nl_event == NULL) 3956 goto err; 3957 3958 ret = nl_get_multicast_id(global, "nl80211", "scan"); 3959 if (ret >= 0) 3960 ret = nl_socket_add_membership(global->nl_event, ret); 3961 if (ret < 0) { 3962 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 3963 "membership for scan events: %d (%s)", 3964 ret, strerror(-ret)); 3965 goto err; 3966 } 3967 3968 ret = nl_get_multicast_id(global, "nl80211", "mlme"); 3969 if (ret >= 0) 3970 ret = nl_socket_add_membership(global->nl_event, ret); 3971 if (ret < 0) { 3972 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 3973 "membership for mlme events: %d (%s)", 3974 ret, strerror(-ret)); 3975 goto err; 3976 } 3977 3978 ret = nl_get_multicast_id(global, "nl80211", "regulatory"); 3979 if (ret >= 0) 3980 ret = nl_socket_add_membership(global->nl_event, ret); 3981 if (ret < 0) { 3982 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " 3983 "membership for regulatory events: %d (%s)", 3984 ret, strerror(-ret)); 3985 /* Continue without regulatory events */ 3986 } 3987 3988 ret = nl_get_multicast_id(global, "nl80211", "vendor"); 3989 if (ret >= 0) 3990 ret = nl_socket_add_membership(global->nl_event, ret); 3991 if (ret < 0) { 3992 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " 3993 "membership for vendor events: %d (%s)", 3994 ret, strerror(-ret)); 3995 /* Continue without vendor events */ 3996 } 3997 3998 nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3999 no_seq_check, NULL); 4000 nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 4001 process_global_event, global); 4002 4003 nl80211_register_eloop_read(&global->nl_event, 4004 wpa_driver_nl80211_event_receive, 4005 global->nl_cb); 4006 4007 return 0; 4008 4009err: 4010 nl_destroy_handles(&global->nl_event); 4011 nl_destroy_handles(&global->nl); 4012 nl_cb_put(global->nl_cb); 4013 global->nl_cb = NULL; 4014 return -1; 4015} 4016 4017 4018static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv) 4019{ 4020 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 4021 if (!drv->nl_cb) { 4022 wpa_printf(MSG_ERROR, "nl80211: Failed to alloc cb struct"); 4023 return -1; 4024 } 4025 4026 nl_cb_set(drv->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 4027 no_seq_check, NULL); 4028 nl_cb_set(drv->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 4029 process_drv_event, drv); 4030 4031 return 0; 4032} 4033 4034 4035static void wpa_driver_nl80211_rfkill_blocked(void *ctx) 4036{ 4037 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked"); 4038 /* 4039 * This may be for any interface; use ifdown event to disable 4040 * interface. 4041 */ 4042} 4043 4044 4045static void wpa_driver_nl80211_rfkill_unblocked(void *ctx) 4046{ 4047 struct wpa_driver_nl80211_data *drv = ctx; 4048 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked"); 4049 if (i802_set_iface_flags(drv->first_bss, 1)) { 4050 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP " 4051 "after rfkill unblock"); 4052 return; 4053 } 4054 /* rtnetlink ifup handler will report interface as enabled */ 4055} 4056 4057 4058static void wpa_driver_nl80211_handle_eapol_tx_status(int sock, 4059 void *eloop_ctx, 4060 void *handle) 4061{ 4062 struct wpa_driver_nl80211_data *drv = eloop_ctx; 4063 u8 data[2048]; 4064 struct msghdr msg; 4065 struct iovec entry; 4066 u8 control[512]; 4067 struct cmsghdr *cmsg; 4068 int res, found_ee = 0, found_wifi = 0, acked = 0; 4069 union wpa_event_data event; 4070 4071 memset(&msg, 0, sizeof(msg)); 4072 msg.msg_iov = &entry; 4073 msg.msg_iovlen = 1; 4074 entry.iov_base = data; 4075 entry.iov_len = sizeof(data); 4076 msg.msg_control = &control; 4077 msg.msg_controllen = sizeof(control); 4078 4079 res = recvmsg(sock, &msg, MSG_ERRQUEUE); 4080 /* if error or not fitting 802.3 header, return */ 4081 if (res < 14) 4082 return; 4083 4084 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) 4085 { 4086 if (cmsg->cmsg_level == SOL_SOCKET && 4087 cmsg->cmsg_type == SCM_WIFI_STATUS) { 4088 int *ack; 4089 4090 found_wifi = 1; 4091 ack = (void *)CMSG_DATA(cmsg); 4092 acked = *ack; 4093 } 4094 4095 if (cmsg->cmsg_level == SOL_PACKET && 4096 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) { 4097 struct sock_extended_err *err = 4098 (struct sock_extended_err *)CMSG_DATA(cmsg); 4099 4100 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS) 4101 found_ee = 1; 4102 } 4103 } 4104 4105 if (!found_ee || !found_wifi) 4106 return; 4107 4108 memset(&event, 0, sizeof(event)); 4109 event.eapol_tx_status.dst = data; 4110 event.eapol_tx_status.data = data + 14; 4111 event.eapol_tx_status.data_len = res - 14; 4112 event.eapol_tx_status.ack = acked; 4113 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event); 4114} 4115 4116 4117static int nl80211_init_bss(struct i802_bss *bss) 4118{ 4119 bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 4120 if (!bss->nl_cb) 4121 return -1; 4122 4123 nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 4124 no_seq_check, NULL); 4125 nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 4126 process_bss_event, bss); 4127 4128 return 0; 4129} 4130 4131 4132static void nl80211_destroy_bss(struct i802_bss *bss) 4133{ 4134 nl_cb_put(bss->nl_cb); 4135 bss->nl_cb = NULL; 4136} 4137 4138 4139static void * wpa_driver_nl80211_drv_init(void *ctx, const char *ifname, 4140 void *global_priv, int hostapd, 4141 const u8 *set_addr) 4142{ 4143 struct wpa_driver_nl80211_data *drv; 4144 struct rfkill_config *rcfg; 4145 struct i802_bss *bss; 4146 4147 if (global_priv == NULL) 4148 return NULL; 4149 drv = os_zalloc(sizeof(*drv)); 4150 if (drv == NULL) 4151 return NULL; 4152 drv->global = global_priv; 4153 drv->ctx = ctx; 4154 drv->hostapd = !!hostapd; 4155 drv->eapol_sock = -1; 4156 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int); 4157 drv->if_indices = drv->default_if_indices; 4158 4159 drv->first_bss = os_zalloc(sizeof(*drv->first_bss)); 4160 if (!drv->first_bss) { 4161 os_free(drv); 4162 return NULL; 4163 } 4164 bss = drv->first_bss; 4165 bss->drv = drv; 4166 bss->ctx = ctx; 4167 4168 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname)); 4169 drv->monitor_ifidx = -1; 4170 drv->monitor_sock = -1; 4171 drv->eapol_tx_sock = -1; 4172 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 4173 4174 if (wpa_driver_nl80211_init_nl(drv)) { 4175 os_free(drv); 4176 return NULL; 4177 } 4178 4179 if (nl80211_init_bss(bss)) 4180 goto failed; 4181 4182 rcfg = os_zalloc(sizeof(*rcfg)); 4183 if (rcfg == NULL) 4184 goto failed; 4185 rcfg->ctx = drv; 4186 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname)); 4187 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked; 4188 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked; 4189 drv->rfkill = rfkill_init(rcfg); 4190 if (drv->rfkill == NULL) { 4191 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available"); 4192 os_free(rcfg); 4193 } 4194 4195 if (linux_iface_up(drv->global->ioctl_sock, ifname) > 0) 4196 drv->start_iface_up = 1; 4197 4198 if (wpa_driver_nl80211_finish_drv_init(drv, set_addr, 1)) 4199 goto failed; 4200 4201 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0); 4202 if (drv->eapol_tx_sock < 0) 4203 goto failed; 4204 4205 if (drv->data_tx_status) { 4206 int enabled = 1; 4207 4208 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS, 4209 &enabled, sizeof(enabled)) < 0) { 4210 wpa_printf(MSG_DEBUG, 4211 "nl80211: wifi status sockopt failed\n"); 4212 drv->data_tx_status = 0; 4213 if (!drv->use_monitor) 4214 drv->capa.flags &= 4215 ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 4216 } else { 4217 eloop_register_read_sock(drv->eapol_tx_sock, 4218 wpa_driver_nl80211_handle_eapol_tx_status, 4219 drv, NULL); 4220 } 4221 } 4222 4223 if (drv->global) { 4224 dl_list_add(&drv->global->interfaces, &drv->list); 4225 drv->in_interface_list = 1; 4226 } 4227 4228 return bss; 4229 4230failed: 4231 wpa_driver_nl80211_deinit(bss); 4232 return NULL; 4233} 4234 4235 4236/** 4237 * wpa_driver_nl80211_init - Initialize nl80211 driver interface 4238 * @ctx: context to be used when calling wpa_supplicant functions, 4239 * e.g., wpa_supplicant_event() 4240 * @ifname: interface name, e.g., wlan0 4241 * @global_priv: private driver global data from global_init() 4242 * Returns: Pointer to private data, %NULL on failure 4243 */ 4244static void * wpa_driver_nl80211_init(void *ctx, const char *ifname, 4245 void *global_priv) 4246{ 4247 return wpa_driver_nl80211_drv_init(ctx, ifname, global_priv, 0, NULL); 4248} 4249 4250 4251static int nl80211_register_frame(struct i802_bss *bss, 4252 struct nl_handle *nl_handle, 4253 u16 type, const u8 *match, size_t match_len) 4254{ 4255 struct wpa_driver_nl80211_data *drv = bss->drv; 4256 struct nl_msg *msg; 4257 int ret = -1; 4258 char buf[30]; 4259 4260 msg = nlmsg_alloc(); 4261 if (!msg) 4262 return -1; 4263 4264 buf[0] = '\0'; 4265 wpa_snprintf_hex(buf, sizeof(buf), match, match_len); 4266 wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x nl_handle=%p match=%s", 4267 type, nl_handle, buf); 4268 4269 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION); 4270 4271 if (nl80211_set_iface_id(msg, bss) < 0) 4272 goto nla_put_failure; 4273 4274 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type); 4275 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match); 4276 4277 ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL); 4278 msg = NULL; 4279 if (ret) { 4280 wpa_printf(MSG_DEBUG, "nl80211: Register frame command " 4281 "failed (type=%u): ret=%d (%s)", 4282 type, ret, strerror(-ret)); 4283 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", 4284 match, match_len); 4285 goto nla_put_failure; 4286 } 4287 ret = 0; 4288nla_put_failure: 4289 nlmsg_free(msg); 4290 return ret; 4291} 4292 4293 4294static int nl80211_alloc_mgmt_handle(struct i802_bss *bss) 4295{ 4296 struct wpa_driver_nl80211_data *drv = bss->drv; 4297 4298 if (bss->nl_mgmt) { 4299 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting " 4300 "already on! (nl_mgmt=%p)", bss->nl_mgmt); 4301 return -1; 4302 } 4303 4304 bss->nl_mgmt = nl_create_handle(drv->nl_cb, "mgmt"); 4305 if (bss->nl_mgmt == NULL) 4306 return -1; 4307 4308 return 0; 4309} 4310 4311 4312static void nl80211_mgmt_handle_register_eloop(struct i802_bss *bss) 4313{ 4314 nl80211_register_eloop_read(&bss->nl_mgmt, 4315 wpa_driver_nl80211_event_receive, 4316 bss->nl_cb); 4317} 4318 4319 4320static int nl80211_register_action_frame(struct i802_bss *bss, 4321 const u8 *match, size_t match_len) 4322{ 4323 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4); 4324 return nl80211_register_frame(bss, bss->nl_mgmt, 4325 type, match, match_len); 4326} 4327 4328 4329static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss) 4330{ 4331 struct wpa_driver_nl80211_data *drv = bss->drv; 4332 int ret = 0; 4333 4334 if (nl80211_alloc_mgmt_handle(bss)) 4335 return -1; 4336 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP " 4337 "handle %p", bss->nl_mgmt); 4338 4339 if (drv->nlmode == NL80211_IFTYPE_ADHOC) { 4340 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_AUTH << 4); 4341 4342 /* register for any AUTH message */ 4343 nl80211_register_frame(bss, bss->nl_mgmt, type, NULL, 0); 4344 } 4345 4346#ifdef CONFIG_INTERWORKING 4347 /* QoS Map Configure */ 4348 if (nl80211_register_action_frame(bss, (u8 *) "\x01\x04", 2) < 0) 4349 ret = -1; 4350#endif /* CONFIG_INTERWORKING */ 4351#if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING) 4352 /* GAS Initial Request */ 4353 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0) 4354 ret = -1; 4355 /* GAS Initial Response */ 4356 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0) 4357 ret = -1; 4358 /* GAS Comeback Request */ 4359 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0) 4360 ret = -1; 4361 /* GAS Comeback Response */ 4362 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0) 4363 ret = -1; 4364 /* Protected GAS Initial Request */ 4365 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0a", 2) < 0) 4366 ret = -1; 4367 /* Protected GAS Initial Response */ 4368 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0b", 2) < 0) 4369 ret = -1; 4370 /* Protected GAS Comeback Request */ 4371 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0c", 2) < 0) 4372 ret = -1; 4373 /* Protected GAS Comeback Response */ 4374 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0d", 2) < 0) 4375 ret = -1; 4376#endif /* CONFIG_P2P || CONFIG_INTERWORKING */ 4377#ifdef CONFIG_P2P 4378 /* P2P Public Action */ 4379 if (nl80211_register_action_frame(bss, 4380 (u8 *) "\x04\x09\x50\x6f\x9a\x09", 4381 6) < 0) 4382 ret = -1; 4383 /* P2P Action */ 4384 if (nl80211_register_action_frame(bss, 4385 (u8 *) "\x7f\x50\x6f\x9a\x09", 4386 5) < 0) 4387 ret = -1; 4388#endif /* CONFIG_P2P */ 4389#ifdef CONFIG_IEEE80211W 4390 /* SA Query Response */ 4391 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0) 4392 ret = -1; 4393#endif /* CONFIG_IEEE80211W */ 4394#ifdef CONFIG_TDLS 4395 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) { 4396 /* TDLS Discovery Response */ 4397 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) < 4398 0) 4399 ret = -1; 4400 } 4401#endif /* CONFIG_TDLS */ 4402 4403 /* FT Action frames */ 4404 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0) 4405 ret = -1; 4406 else 4407 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT | 4408 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK; 4409 4410 /* WNM - BSS Transition Management Request */ 4411 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0) 4412 ret = -1; 4413 /* WNM-Sleep Mode Response */ 4414 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x11", 2) < 0) 4415 ret = -1; 4416 4417#ifdef CONFIG_HS20 4418 /* WNM-Notification */ 4419 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x1a", 2) < 0) 4420 return -1; 4421#endif /* CONFIG_HS20 */ 4422 4423 nl80211_mgmt_handle_register_eloop(bss); 4424 4425 return ret; 4426} 4427 4428 4429static int nl80211_register_spurious_class3(struct i802_bss *bss) 4430{ 4431 struct wpa_driver_nl80211_data *drv = bss->drv; 4432 struct nl_msg *msg; 4433 int ret = -1; 4434 4435 msg = nlmsg_alloc(); 4436 if (!msg) 4437 return -1; 4438 4439 nl80211_cmd(drv, msg, 0, NL80211_CMD_UNEXPECTED_FRAME); 4440 4441 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 4442 4443 ret = send_and_recv(drv->global, bss->nl_mgmt, msg, NULL, NULL); 4444 msg = NULL; 4445 if (ret) { 4446 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 " 4447 "failed: ret=%d (%s)", 4448 ret, strerror(-ret)); 4449 goto nla_put_failure; 4450 } 4451 ret = 0; 4452nla_put_failure: 4453 nlmsg_free(msg); 4454 return ret; 4455} 4456 4457 4458static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss) 4459{ 4460 static const int stypes[] = { 4461 WLAN_FC_STYPE_AUTH, 4462 WLAN_FC_STYPE_ASSOC_REQ, 4463 WLAN_FC_STYPE_REASSOC_REQ, 4464 WLAN_FC_STYPE_DISASSOC, 4465 WLAN_FC_STYPE_DEAUTH, 4466 WLAN_FC_STYPE_ACTION, 4467 WLAN_FC_STYPE_PROBE_REQ, 4468/* Beacon doesn't work as mac80211 doesn't currently allow 4469 * it, but it wouldn't really be the right thing anyway as 4470 * it isn't per interface ... maybe just dump the scan 4471 * results periodically for OLBC? 4472 */ 4473// WLAN_FC_STYPE_BEACON, 4474 }; 4475 unsigned int i; 4476 4477 if (nl80211_alloc_mgmt_handle(bss)) 4478 return -1; 4479 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 4480 "handle %p", bss->nl_mgmt); 4481 4482 for (i = 0; i < ARRAY_SIZE(stypes); i++) { 4483 if (nl80211_register_frame(bss, bss->nl_mgmt, 4484 (WLAN_FC_TYPE_MGMT << 2) | 4485 (stypes[i] << 4), 4486 NULL, 0) < 0) { 4487 goto out_err; 4488 } 4489 } 4490 4491 if (nl80211_register_spurious_class3(bss)) 4492 goto out_err; 4493 4494 if (nl80211_get_wiphy_data_ap(bss) == NULL) 4495 goto out_err; 4496 4497 nl80211_mgmt_handle_register_eloop(bss); 4498 return 0; 4499 4500out_err: 4501 nl_destroy_handles(&bss->nl_mgmt); 4502 return -1; 4503} 4504 4505 4506static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss) 4507{ 4508 if (nl80211_alloc_mgmt_handle(bss)) 4509 return -1; 4510 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 4511 "handle %p (device SME)", bss->nl_mgmt); 4512 4513 if (nl80211_register_frame(bss, bss->nl_mgmt, 4514 (WLAN_FC_TYPE_MGMT << 2) | 4515 (WLAN_FC_STYPE_ACTION << 4), 4516 NULL, 0) < 0) 4517 goto out_err; 4518 4519 nl80211_mgmt_handle_register_eloop(bss); 4520 return 0; 4521 4522out_err: 4523 nl_destroy_handles(&bss->nl_mgmt); 4524 return -1; 4525} 4526 4527 4528static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason) 4529{ 4530 if (bss->nl_mgmt == NULL) 4531 return; 4532 wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p " 4533 "(%s)", bss->nl_mgmt, reason); 4534 nl80211_destroy_eloop_handle(&bss->nl_mgmt); 4535 4536 nl80211_put_wiphy_data_ap(bss); 4537} 4538 4539 4540static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx) 4541{ 4542 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL); 4543} 4544 4545 4546static void nl80211_del_p2pdev(struct i802_bss *bss) 4547{ 4548 struct wpa_driver_nl80211_data *drv = bss->drv; 4549 struct nl_msg *msg; 4550 int ret; 4551 4552 msg = nlmsg_alloc(); 4553 if (!msg) 4554 return; 4555 4556 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 4557 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 4558 4559 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4560 msg = NULL; 4561 4562 wpa_printf(MSG_DEBUG, "nl80211: Delete P2P Device %s (0x%llx): %s", 4563 bss->ifname, (long long unsigned int) bss->wdev_id, 4564 strerror(-ret)); 4565 4566nla_put_failure: 4567 nlmsg_free(msg); 4568} 4569 4570 4571static int nl80211_set_p2pdev(struct i802_bss *bss, int start) 4572{ 4573 struct wpa_driver_nl80211_data *drv = bss->drv; 4574 struct nl_msg *msg; 4575 int ret = -1; 4576 4577 msg = nlmsg_alloc(); 4578 if (!msg) 4579 return -1; 4580 4581 if (start) 4582 nl80211_cmd(drv, msg, 0, NL80211_CMD_START_P2P_DEVICE); 4583 else 4584 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_P2P_DEVICE); 4585 4586 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 4587 4588 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4589 msg = NULL; 4590 4591 wpa_printf(MSG_DEBUG, "nl80211: %s P2P Device %s (0x%llx): %s", 4592 start ? "Start" : "Stop", 4593 bss->ifname, (long long unsigned int) bss->wdev_id, 4594 strerror(-ret)); 4595 4596nla_put_failure: 4597 nlmsg_free(msg); 4598 return ret; 4599} 4600 4601 4602static int i802_set_iface_flags(struct i802_bss *bss, int up) 4603{ 4604 enum nl80211_iftype nlmode; 4605 4606 nlmode = nl80211_get_ifmode(bss); 4607 if (nlmode != NL80211_IFTYPE_P2P_DEVICE) { 4608 return linux_set_iface_flags(bss->drv->global->ioctl_sock, 4609 bss->ifname, up); 4610 } 4611 4612 /* P2P Device has start/stop which is equivalent */ 4613 return nl80211_set_p2pdev(bss, up); 4614} 4615 4616 4617static int 4618wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv, 4619 const u8 *set_addr, int first) 4620{ 4621 struct i802_bss *bss = drv->first_bss; 4622 int send_rfkill_event = 0; 4623 enum nl80211_iftype nlmode; 4624 4625 drv->ifindex = if_nametoindex(bss->ifname); 4626 bss->ifindex = drv->ifindex; 4627 bss->wdev_id = drv->global->if_add_wdevid; 4628 bss->wdev_id_set = drv->global->if_add_wdevid_set; 4629 4630 bss->if_dynamic = drv->ifindex == drv->global->if_add_ifindex; 4631 bss->if_dynamic = bss->if_dynamic || drv->global->if_add_wdevid_set; 4632 drv->global->if_add_wdevid_set = 0; 4633 4634 if (wpa_driver_nl80211_capa(drv)) 4635 return -1; 4636 4637 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s", 4638 bss->ifname, drv->phyname); 4639 4640 if (set_addr && 4641 (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0) || 4642 linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 4643 set_addr))) 4644 return -1; 4645 4646 if (first && nl80211_get_ifmode(bss) == NL80211_IFTYPE_AP) 4647 drv->start_mode_ap = 1; 4648 4649 if (drv->hostapd) 4650 nlmode = NL80211_IFTYPE_AP; 4651 else if (bss->if_dynamic) 4652 nlmode = nl80211_get_ifmode(bss); 4653 else 4654 nlmode = NL80211_IFTYPE_STATION; 4655 4656 if (wpa_driver_nl80211_set_mode(bss, nlmode) < 0) { 4657 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver mode"); 4658 return -1; 4659 } 4660 4661 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) 4662 nl80211_get_macaddr(bss); 4663 4664 if (!rfkill_is_blocked(drv->rfkill)) { 4665 int ret = i802_set_iface_flags(bss, 1); 4666 if (ret) { 4667 wpa_printf(MSG_ERROR, "nl80211: Could not set " 4668 "interface '%s' UP", bss->ifname); 4669 return ret; 4670 } 4671 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) 4672 return ret; 4673 } else { 4674 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable " 4675 "interface '%s' due to rfkill", bss->ifname); 4676 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) 4677 return 0; 4678 drv->if_disabled = 1; 4679 send_rfkill_event = 1; 4680 } 4681 4682 if (!drv->hostapd) 4683 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 4684 1, IF_OPER_DORMANT); 4685 4686 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 4687 bss->addr)) 4688 return -1; 4689 4690 if (send_rfkill_event) { 4691 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill, 4692 drv, drv->ctx); 4693 } 4694 4695 return 0; 4696} 4697 4698 4699static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv) 4700{ 4701 struct nl_msg *msg; 4702 4703 msg = nlmsg_alloc(); 4704 if (!msg) 4705 return -ENOMEM; 4706 4707 wpa_printf(MSG_DEBUG, "nl80211: Remove beacon (ifindex=%d)", 4708 drv->ifindex); 4709 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON); 4710 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4711 4712 return send_and_recv_msgs(drv, msg, NULL, NULL); 4713 nla_put_failure: 4714 nlmsg_free(msg); 4715 return -ENOBUFS; 4716} 4717 4718 4719/** 4720 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface 4721 * @bss: Pointer to private nl80211 data from wpa_driver_nl80211_init() 4722 * 4723 * Shut down driver interface and processing of driver events. Free 4724 * private data buffer if one was allocated in wpa_driver_nl80211_init(). 4725 */ 4726static void wpa_driver_nl80211_deinit(struct i802_bss *bss) 4727{ 4728 struct wpa_driver_nl80211_data *drv = bss->drv; 4729 4730 bss->in_deinit = 1; 4731 if (drv->data_tx_status) 4732 eloop_unregister_read_sock(drv->eapol_tx_sock); 4733 if (drv->eapol_tx_sock >= 0) 4734 close(drv->eapol_tx_sock); 4735 4736 if (bss->nl_preq) 4737 wpa_driver_nl80211_probe_req_report(bss, 0); 4738 if (bss->added_if_into_bridge) { 4739 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 4740 bss->ifname) < 0) 4741 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 4742 "interface %s from bridge %s: %s", 4743 bss->ifname, bss->brname, strerror(errno)); 4744 } 4745 if (bss->added_bridge) { 4746 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 4747 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 4748 "bridge %s: %s", 4749 bss->brname, strerror(errno)); 4750 } 4751 4752 nl80211_remove_monitor_interface(drv); 4753 4754 if (is_ap_interface(drv->nlmode)) 4755 wpa_driver_nl80211_del_beacon(drv); 4756 4757 if (drv->eapol_sock >= 0) { 4758 eloop_unregister_read_sock(drv->eapol_sock); 4759 close(drv->eapol_sock); 4760 } 4761 4762 if (drv->if_indices != drv->default_if_indices) 4763 os_free(drv->if_indices); 4764 4765 if (drv->disabled_11b_rates) 4766 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 4767 4768 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0, 4769 IF_OPER_UP); 4770 rfkill_deinit(drv->rfkill); 4771 4772 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 4773 4774 if (!drv->start_iface_up) 4775 (void) i802_set_iface_flags(bss, 0); 4776 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) { 4777 if (!drv->hostapd || !drv->start_mode_ap) 4778 wpa_driver_nl80211_set_mode(bss, 4779 NL80211_IFTYPE_STATION); 4780 nl80211_mgmt_unsubscribe(bss, "deinit"); 4781 } else { 4782 nl80211_mgmt_unsubscribe(bss, "deinit"); 4783 nl80211_del_p2pdev(bss); 4784 } 4785 nl_cb_put(drv->nl_cb); 4786 4787 nl80211_destroy_bss(drv->first_bss); 4788 4789 os_free(drv->filter_ssids); 4790 4791 os_free(drv->auth_ie); 4792 4793 if (drv->in_interface_list) 4794 dl_list_del(&drv->list); 4795 4796 os_free(drv->extended_capa); 4797 os_free(drv->extended_capa_mask); 4798 os_free(drv->first_bss); 4799 os_free(drv); 4800} 4801 4802 4803/** 4804 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion 4805 * @eloop_ctx: Driver private data 4806 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init() 4807 * 4808 * This function can be used as registered timeout when starting a scan to 4809 * generate a scan completed event if the driver does not report this. 4810 */ 4811static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx) 4812{ 4813 struct wpa_driver_nl80211_data *drv = eloop_ctx; 4814 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) { 4815 wpa_driver_nl80211_set_mode(drv->first_bss, 4816 drv->ap_scan_as_station); 4817 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 4818 } 4819 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results"); 4820 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL); 4821} 4822 4823 4824static struct nl_msg * 4825nl80211_scan_common(struct wpa_driver_nl80211_data *drv, u8 cmd, 4826 struct wpa_driver_scan_params *params, u64 *wdev_id) 4827{ 4828 struct nl_msg *msg; 4829 size_t i; 4830 4831 msg = nlmsg_alloc(); 4832 if (!msg) 4833 return NULL; 4834 4835 nl80211_cmd(drv, msg, 0, cmd); 4836 4837 if (!wdev_id) 4838 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4839 else 4840 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, *wdev_id); 4841 4842 if (params->num_ssids) { 4843 struct nlattr *ssids; 4844 4845 ssids = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); 4846 if (ssids == NULL) 4847 goto fail; 4848 for (i = 0; i < params->num_ssids; i++) { 4849 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID", 4850 params->ssids[i].ssid, 4851 params->ssids[i].ssid_len); 4852 if (nla_put(msg, i + 1, params->ssids[i].ssid_len, 4853 params->ssids[i].ssid) < 0) 4854 goto fail; 4855 } 4856 nla_nest_end(msg, ssids); 4857 } 4858 4859 if (params->extra_ies) { 4860 wpa_hexdump(MSG_MSGDUMP, "nl80211: Scan extra IEs", 4861 params->extra_ies, params->extra_ies_len); 4862 if (nla_put(msg, NL80211_ATTR_IE, params->extra_ies_len, 4863 params->extra_ies) < 0) 4864 goto fail; 4865 } 4866 4867 if (params->freqs) { 4868 struct nlattr *freqs; 4869 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); 4870 if (freqs == NULL) 4871 goto fail; 4872 for (i = 0; params->freqs[i]; i++) { 4873 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u " 4874 "MHz", params->freqs[i]); 4875 if (nla_put_u32(msg, i + 1, params->freqs[i]) < 0) 4876 goto fail; 4877 } 4878 nla_nest_end(msg, freqs); 4879 } 4880 4881 os_free(drv->filter_ssids); 4882 drv->filter_ssids = params->filter_ssids; 4883 params->filter_ssids = NULL; 4884 drv->num_filter_ssids = params->num_filter_ssids; 4885 4886 if (params->only_new_results) { 4887 wpa_printf(MSG_DEBUG, "nl80211: Add NL80211_SCAN_FLAG_FLUSH"); 4888 NLA_PUT_U32(msg, NL80211_ATTR_SCAN_FLAGS, 4889 NL80211_SCAN_FLAG_FLUSH); 4890 } 4891 4892 return msg; 4893 4894fail: 4895nla_put_failure: 4896 nlmsg_free(msg); 4897 return NULL; 4898} 4899 4900 4901/** 4902 * wpa_driver_nl80211_scan - Request the driver to initiate scan 4903 * @bss: Pointer to private driver data from wpa_driver_nl80211_init() 4904 * @params: Scan parameters 4905 * Returns: 0 on success, -1 on failure 4906 */ 4907static int wpa_driver_nl80211_scan(struct i802_bss *bss, 4908 struct wpa_driver_scan_params *params) 4909{ 4910 struct wpa_driver_nl80211_data *drv = bss->drv; 4911 int ret = -1, timeout; 4912 struct nl_msg *msg = NULL; 4913 4914 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: scan request"); 4915 drv->scan_for_auth = 0; 4916 4917 msg = nl80211_scan_common(drv, NL80211_CMD_TRIGGER_SCAN, params, 4918 bss->wdev_id_set ? &bss->wdev_id : NULL); 4919 if (!msg) 4920 return -1; 4921 4922 if (params->p2p_probe) { 4923 struct nlattr *rates; 4924 4925 wpa_printf(MSG_DEBUG, "nl80211: P2P probe - mask SuppRates"); 4926 4927 rates = nla_nest_start(msg, NL80211_ATTR_SCAN_SUPP_RATES); 4928 if (rates == NULL) 4929 goto nla_put_failure; 4930 4931 /* 4932 * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates 4933 * by masking out everything else apart from the OFDM rates 6, 4934 * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz 4935 * rates are left enabled. 4936 */ 4937 NLA_PUT(msg, NL80211_BAND_2GHZ, 8, 4938 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 4939 nla_nest_end(msg, rates); 4940 4941 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 4942 } 4943 4944 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4945 msg = NULL; 4946 if (ret) { 4947 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d " 4948 "(%s)", ret, strerror(-ret)); 4949 if (drv->hostapd && is_ap_interface(drv->nlmode)) { 4950 enum nl80211_iftype old_mode = drv->nlmode; 4951 4952 /* 4953 * mac80211 does not allow scan requests in AP mode, so 4954 * try to do this in station mode. 4955 */ 4956 if (wpa_driver_nl80211_set_mode( 4957 bss, NL80211_IFTYPE_STATION)) 4958 goto nla_put_failure; 4959 4960 if (wpa_driver_nl80211_scan(bss, params)) { 4961 wpa_driver_nl80211_set_mode(bss, drv->nlmode); 4962 goto nla_put_failure; 4963 } 4964 4965 /* Restore AP mode when processing scan results */ 4966 drv->ap_scan_as_station = old_mode; 4967 ret = 0; 4968 } else 4969 goto nla_put_failure; 4970 } 4971 4972 drv->scan_state = SCAN_REQUESTED; 4973 /* Not all drivers generate "scan completed" wireless event, so try to 4974 * read results after a timeout. */ 4975 timeout = 10; 4976 if (drv->scan_complete_events) { 4977 /* 4978 * The driver seems to deliver events to notify when scan is 4979 * complete, so use longer timeout to avoid race conditions 4980 * with scanning and following association request. 4981 */ 4982 timeout = 30; 4983 } 4984 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d " 4985 "seconds", ret, timeout); 4986 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 4987 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout, 4988 drv, drv->ctx); 4989 4990nla_put_failure: 4991 nlmsg_free(msg); 4992 return ret; 4993} 4994 4995 4996/** 4997 * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan 4998 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 4999 * @params: Scan parameters 5000 * @interval: Interval between scan cycles in milliseconds 5001 * Returns: 0 on success, -1 on failure or if not supported 5002 */ 5003static int wpa_driver_nl80211_sched_scan(void *priv, 5004 struct wpa_driver_scan_params *params, 5005 u32 interval) 5006{ 5007 struct i802_bss *bss = priv; 5008 struct wpa_driver_nl80211_data *drv = bss->drv; 5009 int ret = -1; 5010 struct nl_msg *msg; 5011 size_t i; 5012 5013 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: sched_scan request"); 5014 5015#ifdef ANDROID 5016 if (!drv->capa.sched_scan_supported) 5017 return android_pno_start(bss, params); 5018#endif /* ANDROID */ 5019 5020 msg = nl80211_scan_common(drv, NL80211_CMD_START_SCHED_SCAN, params, 5021 bss->wdev_id_set ? &bss->wdev_id : NULL); 5022 if (!msg) 5023 goto nla_put_failure; 5024 5025 NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval); 5026 5027 if ((drv->num_filter_ssids && 5028 (int) drv->num_filter_ssids <= drv->capa.max_match_sets) || 5029 params->filter_rssi) { 5030 struct nlattr *match_sets; 5031 match_sets = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH); 5032 if (match_sets == NULL) 5033 goto nla_put_failure; 5034 5035 for (i = 0; i < drv->num_filter_ssids; i++) { 5036 struct nlattr *match_set_ssid; 5037 wpa_hexdump_ascii(MSG_MSGDUMP, 5038 "nl80211: Sched scan filter SSID", 5039 drv->filter_ssids[i].ssid, 5040 drv->filter_ssids[i].ssid_len); 5041 5042 match_set_ssid = nla_nest_start(msg, i + 1); 5043 if (match_set_ssid == NULL) 5044 goto nla_put_failure; 5045 NLA_PUT(msg, NL80211_ATTR_SCHED_SCAN_MATCH_SSID, 5046 drv->filter_ssids[i].ssid_len, 5047 drv->filter_ssids[i].ssid); 5048 if (params->filter_rssi) 5049 NLA_PUT_U32(msg, 5050 NL80211_SCHED_SCAN_MATCH_ATTR_RSSI, 5051 params->filter_rssi); 5052 5053 nla_nest_end(msg, match_set_ssid); 5054 } 5055 5056 /* 5057 * Due to backward compatibility code, newer kernels treat this 5058 * matchset (with only an RSSI filter) as the default for all 5059 * other matchsets, unless it's the only one, in which case the 5060 * matchset will actually allow all SSIDs above the RSSI. 5061 */ 5062 if (params->filter_rssi) { 5063 struct nlattr *match_set_rssi; 5064 match_set_rssi = nla_nest_start(msg, 0); 5065 if (match_set_rssi == NULL) 5066 goto nla_put_failure; 5067 NLA_PUT_U32(msg, NL80211_SCHED_SCAN_MATCH_ATTR_RSSI, 5068 params->filter_rssi); 5069 wpa_printf(MSG_MSGDUMP, 5070 "nl80211: Sched scan RSSI filter %d dBm", 5071 params->filter_rssi); 5072 nla_nest_end(msg, match_set_rssi); 5073 } 5074 5075 nla_nest_end(msg, match_sets); 5076 } 5077 5078 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5079 5080 /* TODO: if we get an error here, we should fall back to normal scan */ 5081 5082 msg = NULL; 5083 if (ret) { 5084 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: " 5085 "ret=%d (%s)", ret, strerror(-ret)); 5086 goto nla_put_failure; 5087 } 5088 5089 wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - " 5090 "scan interval %d msec", ret, interval); 5091 5092nla_put_failure: 5093 nlmsg_free(msg); 5094 return ret; 5095} 5096 5097 5098/** 5099 * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan 5100 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 5101 * Returns: 0 on success, -1 on failure or if not supported 5102 */ 5103static int wpa_driver_nl80211_stop_sched_scan(void *priv) 5104{ 5105 struct i802_bss *bss = priv; 5106 struct wpa_driver_nl80211_data *drv = bss->drv; 5107 int ret = 0; 5108 struct nl_msg *msg; 5109 5110#ifdef ANDROID 5111 if (!drv->capa.sched_scan_supported) 5112 return android_pno_stop(bss); 5113#endif /* ANDROID */ 5114 5115 msg = nlmsg_alloc(); 5116 if (!msg) 5117 return -1; 5118 5119 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN); 5120 5121 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5122 5123 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5124 msg = NULL; 5125 if (ret) { 5126 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: " 5127 "ret=%d (%s)", ret, strerror(-ret)); 5128 goto nla_put_failure; 5129 } 5130 5131 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret); 5132 5133nla_put_failure: 5134 nlmsg_free(msg); 5135 return ret; 5136} 5137 5138 5139static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie) 5140{ 5141 const u8 *end, *pos; 5142 5143 if (ies == NULL) 5144 return NULL; 5145 5146 pos = ies; 5147 end = ies + ies_len; 5148 5149 while (pos + 1 < end) { 5150 if (pos + 2 + pos[1] > end) 5151 break; 5152 if (pos[0] == ie) 5153 return pos; 5154 pos += 2 + pos[1]; 5155 } 5156 5157 return NULL; 5158} 5159 5160 5161static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv, 5162 const u8 *ie, size_t ie_len) 5163{ 5164 const u8 *ssid; 5165 size_t i; 5166 5167 if (drv->filter_ssids == NULL) 5168 return 0; 5169 5170 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID); 5171 if (ssid == NULL) 5172 return 1; 5173 5174 for (i = 0; i < drv->num_filter_ssids; i++) { 5175 if (ssid[1] == drv->filter_ssids[i].ssid_len && 5176 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) == 5177 0) 5178 return 0; 5179 } 5180 5181 return 1; 5182} 5183 5184 5185static int bss_info_handler(struct nl_msg *msg, void *arg) 5186{ 5187 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 5188 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 5189 struct nlattr *bss[NL80211_BSS_MAX + 1]; 5190 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = { 5191 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC }, 5192 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 }, 5193 [NL80211_BSS_TSF] = { .type = NLA_U64 }, 5194 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 }, 5195 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 }, 5196 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC }, 5197 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 }, 5198 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 }, 5199 [NL80211_BSS_STATUS] = { .type = NLA_U32 }, 5200 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 }, 5201 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC }, 5202 }; 5203 struct nl80211_bss_info_arg *_arg = arg; 5204 struct wpa_scan_results *res = _arg->res; 5205 struct wpa_scan_res **tmp; 5206 struct wpa_scan_res *r; 5207 const u8 *ie, *beacon_ie; 5208 size_t ie_len, beacon_ie_len; 5209 u8 *pos; 5210 size_t i; 5211 5212 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 5213 genlmsg_attrlen(gnlh, 0), NULL); 5214 if (!tb[NL80211_ATTR_BSS]) 5215 return NL_SKIP; 5216 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS], 5217 bss_policy)) 5218 return NL_SKIP; 5219 if (bss[NL80211_BSS_STATUS]) { 5220 enum nl80211_bss_status status; 5221 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 5222 if (status == NL80211_BSS_STATUS_ASSOCIATED && 5223 bss[NL80211_BSS_FREQUENCY]) { 5224 _arg->assoc_freq = 5225 nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 5226 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz", 5227 _arg->assoc_freq); 5228 } 5229 if (status == NL80211_BSS_STATUS_ASSOCIATED && 5230 bss[NL80211_BSS_BSSID]) { 5231 os_memcpy(_arg->assoc_bssid, 5232 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN); 5233 wpa_printf(MSG_DEBUG, "nl80211: Associated with " 5234 MACSTR, MAC2STR(_arg->assoc_bssid)); 5235 } 5236 } 5237 if (!res) 5238 return NL_SKIP; 5239 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) { 5240 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 5241 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 5242 } else { 5243 ie = NULL; 5244 ie_len = 0; 5245 } 5246 if (bss[NL80211_BSS_BEACON_IES]) { 5247 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]); 5248 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]); 5249 } else { 5250 beacon_ie = NULL; 5251 beacon_ie_len = 0; 5252 } 5253 5254 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie, 5255 ie ? ie_len : beacon_ie_len)) 5256 return NL_SKIP; 5257 5258 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len); 5259 if (r == NULL) 5260 return NL_SKIP; 5261 if (bss[NL80211_BSS_BSSID]) 5262 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]), 5263 ETH_ALEN); 5264 if (bss[NL80211_BSS_FREQUENCY]) 5265 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 5266 if (bss[NL80211_BSS_BEACON_INTERVAL]) 5267 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]); 5268 if (bss[NL80211_BSS_CAPABILITY]) 5269 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]); 5270 r->flags |= WPA_SCAN_NOISE_INVALID; 5271 if (bss[NL80211_BSS_SIGNAL_MBM]) { 5272 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]); 5273 r->level /= 100; /* mBm to dBm */ 5274 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID; 5275 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) { 5276 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]); 5277 r->flags |= WPA_SCAN_QUAL_INVALID; 5278 } else 5279 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID; 5280 if (bss[NL80211_BSS_TSF]) 5281 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]); 5282 if (bss[NL80211_BSS_SEEN_MS_AGO]) 5283 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]); 5284 r->ie_len = ie_len; 5285 pos = (u8 *) (r + 1); 5286 if (ie) { 5287 os_memcpy(pos, ie, ie_len); 5288 pos += ie_len; 5289 } 5290 r->beacon_ie_len = beacon_ie_len; 5291 if (beacon_ie) 5292 os_memcpy(pos, beacon_ie, beacon_ie_len); 5293 5294 if (bss[NL80211_BSS_STATUS]) { 5295 enum nl80211_bss_status status; 5296 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 5297 switch (status) { 5298 case NL80211_BSS_STATUS_AUTHENTICATED: 5299 r->flags |= WPA_SCAN_AUTHENTICATED; 5300 break; 5301 case NL80211_BSS_STATUS_ASSOCIATED: 5302 r->flags |= WPA_SCAN_ASSOCIATED; 5303 break; 5304 default: 5305 break; 5306 } 5307 } 5308 5309 /* 5310 * cfg80211 maintains separate BSS table entries for APs if the same 5311 * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does 5312 * not use frequency as a separate key in the BSS table, so filter out 5313 * duplicated entries. Prefer associated BSS entry in such a case in 5314 * order to get the correct frequency into the BSS table. Similarly, 5315 * prefer newer entries over older. 5316 */ 5317 for (i = 0; i < res->num; i++) { 5318 const u8 *s1, *s2; 5319 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0) 5320 continue; 5321 5322 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1), 5323 res->res[i]->ie_len, WLAN_EID_SSID); 5324 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID); 5325 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] || 5326 os_memcmp(s1, s2, 2 + s1[1]) != 0) 5327 continue; 5328 5329 /* Same BSSID,SSID was already included in scan results */ 5330 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result " 5331 "for " MACSTR, MAC2STR(r->bssid)); 5332 5333 if (((r->flags & WPA_SCAN_ASSOCIATED) && 5334 !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) || 5335 r->age < res->res[i]->age) { 5336 os_free(res->res[i]); 5337 res->res[i] = r; 5338 } else 5339 os_free(r); 5340 return NL_SKIP; 5341 } 5342 5343 tmp = os_realloc_array(res->res, res->num + 1, 5344 sizeof(struct wpa_scan_res *)); 5345 if (tmp == NULL) { 5346 os_free(r); 5347 return NL_SKIP; 5348 } 5349 tmp[res->num++] = r; 5350 res->res = tmp; 5351 5352 return NL_SKIP; 5353} 5354 5355 5356static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv, 5357 const u8 *addr) 5358{ 5359 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 5360 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state " 5361 "mismatch (" MACSTR ")", MAC2STR(addr)); 5362 wpa_driver_nl80211_mlme(drv, addr, 5363 NL80211_CMD_DEAUTHENTICATE, 5364 WLAN_REASON_PREV_AUTH_NOT_VALID, 1); 5365 } 5366} 5367 5368 5369static void wpa_driver_nl80211_check_bss_status( 5370 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res) 5371{ 5372 size_t i; 5373 5374 for (i = 0; i < res->num; i++) { 5375 struct wpa_scan_res *r = res->res[i]; 5376 if (r->flags & WPA_SCAN_AUTHENTICATED) { 5377 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 5378 "indicates BSS status with " MACSTR 5379 " as authenticated", 5380 MAC2STR(r->bssid)); 5381 if (is_sta_interface(drv->nlmode) && 5382 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 && 5383 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) != 5384 0) { 5385 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID" 5386 " in local state (auth=" MACSTR 5387 " assoc=" MACSTR ")", 5388 MAC2STR(drv->auth_bssid), 5389 MAC2STR(drv->bssid)); 5390 clear_state_mismatch(drv, r->bssid); 5391 } 5392 } 5393 5394 if (r->flags & WPA_SCAN_ASSOCIATED) { 5395 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 5396 "indicate BSS status with " MACSTR 5397 " as associated", 5398 MAC2STR(r->bssid)); 5399 if (is_sta_interface(drv->nlmode) && 5400 !drv->associated) { 5401 wpa_printf(MSG_DEBUG, "nl80211: Local state " 5402 "(not associated) does not match " 5403 "with BSS state"); 5404 clear_state_mismatch(drv, r->bssid); 5405 } else if (is_sta_interface(drv->nlmode) && 5406 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) != 5407 0) { 5408 wpa_printf(MSG_DEBUG, "nl80211: Local state " 5409 "(associated with " MACSTR ") does " 5410 "not match with BSS state", 5411 MAC2STR(drv->bssid)); 5412 clear_state_mismatch(drv, r->bssid); 5413 clear_state_mismatch(drv, drv->bssid); 5414 } 5415 } 5416 } 5417} 5418 5419 5420static struct wpa_scan_results * 5421nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv) 5422{ 5423 struct nl_msg *msg; 5424 struct wpa_scan_results *res; 5425 int ret; 5426 struct nl80211_bss_info_arg arg; 5427 5428 res = os_zalloc(sizeof(*res)); 5429 if (res == NULL) 5430 return NULL; 5431 msg = nlmsg_alloc(); 5432 if (!msg) 5433 goto nla_put_failure; 5434 5435 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 5436 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 5437 goto nla_put_failure; 5438 5439 arg.drv = drv; 5440 arg.res = res; 5441 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 5442 msg = NULL; 5443 if (ret == 0) { 5444 wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu " 5445 "BSSes)", (unsigned long) res->num); 5446 nl80211_get_noise_for_scan_results(drv, res); 5447 return res; 5448 } 5449 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 5450 "(%s)", ret, strerror(-ret)); 5451nla_put_failure: 5452 nlmsg_free(msg); 5453 wpa_scan_results_free(res); 5454 return NULL; 5455} 5456 5457 5458/** 5459 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results 5460 * @priv: Pointer to private wext data from wpa_driver_nl80211_init() 5461 * Returns: Scan results on success, -1 on failure 5462 */ 5463static struct wpa_scan_results * 5464wpa_driver_nl80211_get_scan_results(void *priv) 5465{ 5466 struct i802_bss *bss = priv; 5467 struct wpa_driver_nl80211_data *drv = bss->drv; 5468 struct wpa_scan_results *res; 5469 5470 res = nl80211_get_scan_results(drv); 5471 if (res) 5472 wpa_driver_nl80211_check_bss_status(drv, res); 5473 return res; 5474} 5475 5476 5477static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv) 5478{ 5479 struct wpa_scan_results *res; 5480 size_t i; 5481 5482 res = nl80211_get_scan_results(drv); 5483 if (res == NULL) { 5484 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results"); 5485 return; 5486 } 5487 5488 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump"); 5489 for (i = 0; i < res->num; i++) { 5490 struct wpa_scan_res *r = res->res[i]; 5491 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s", 5492 (int) i, (int) res->num, MAC2STR(r->bssid), 5493 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "", 5494 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : ""); 5495 } 5496 5497 wpa_scan_results_free(res); 5498} 5499 5500 5501static u32 wpa_alg_to_cipher_suite(enum wpa_alg alg, size_t key_len) 5502{ 5503 switch (alg) { 5504 case WPA_ALG_WEP: 5505 if (key_len == 5) 5506 return WLAN_CIPHER_SUITE_WEP40; 5507 return WLAN_CIPHER_SUITE_WEP104; 5508 case WPA_ALG_TKIP: 5509 return WLAN_CIPHER_SUITE_TKIP; 5510 case WPA_ALG_CCMP: 5511 return WLAN_CIPHER_SUITE_CCMP; 5512 case WPA_ALG_GCMP: 5513 return WLAN_CIPHER_SUITE_GCMP; 5514 case WPA_ALG_CCMP_256: 5515 return WLAN_CIPHER_SUITE_CCMP_256; 5516 case WPA_ALG_GCMP_256: 5517 return WLAN_CIPHER_SUITE_GCMP_256; 5518 case WPA_ALG_IGTK: 5519 return WLAN_CIPHER_SUITE_AES_CMAC; 5520 case WPA_ALG_BIP_GMAC_128: 5521 return WLAN_CIPHER_SUITE_BIP_GMAC_128; 5522 case WPA_ALG_BIP_GMAC_256: 5523 return WLAN_CIPHER_SUITE_BIP_GMAC_256; 5524 case WPA_ALG_BIP_CMAC_256: 5525 return WLAN_CIPHER_SUITE_BIP_CMAC_256; 5526 case WPA_ALG_SMS4: 5527 return WLAN_CIPHER_SUITE_SMS4; 5528 case WPA_ALG_KRK: 5529 return WLAN_CIPHER_SUITE_KRK; 5530 case WPA_ALG_NONE: 5531 case WPA_ALG_PMK: 5532 wpa_printf(MSG_ERROR, "nl80211: Unexpected encryption algorithm %d", 5533 alg); 5534 return 0; 5535 } 5536 5537 wpa_printf(MSG_ERROR, "nl80211: Unsupported encryption algorithm %d", 5538 alg); 5539 return 0; 5540} 5541 5542 5543static u32 wpa_cipher_to_cipher_suite(unsigned int cipher) 5544{ 5545 switch (cipher) { 5546 case WPA_CIPHER_CCMP_256: 5547 return WLAN_CIPHER_SUITE_CCMP_256; 5548 case WPA_CIPHER_GCMP_256: 5549 return WLAN_CIPHER_SUITE_GCMP_256; 5550 case WPA_CIPHER_CCMP: 5551 return WLAN_CIPHER_SUITE_CCMP; 5552 case WPA_CIPHER_GCMP: 5553 return WLAN_CIPHER_SUITE_GCMP; 5554 case WPA_CIPHER_TKIP: 5555 return WLAN_CIPHER_SUITE_TKIP; 5556 case WPA_CIPHER_WEP104: 5557 return WLAN_CIPHER_SUITE_WEP104; 5558 case WPA_CIPHER_WEP40: 5559 return WLAN_CIPHER_SUITE_WEP40; 5560 case WPA_CIPHER_GTK_NOT_USED: 5561 return WLAN_CIPHER_SUITE_NO_GROUP_ADDR; 5562 } 5563 5564 return 0; 5565} 5566 5567 5568static int wpa_cipher_to_cipher_suites(unsigned int ciphers, u32 suites[], 5569 int max_suites) 5570{ 5571 int num_suites = 0; 5572 5573 if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP_256) 5574 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP_256; 5575 if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP_256) 5576 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP_256; 5577 if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP) 5578 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP; 5579 if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP) 5580 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP; 5581 if (num_suites < max_suites && ciphers & WPA_CIPHER_TKIP) 5582 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP; 5583 if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP104) 5584 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104; 5585 if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP40) 5586 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40; 5587 5588 return num_suites; 5589} 5590 5591 5592static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss, 5593 enum wpa_alg alg, const u8 *addr, 5594 int key_idx, int set_tx, 5595 const u8 *seq, size_t seq_len, 5596 const u8 *key, size_t key_len) 5597{ 5598 struct wpa_driver_nl80211_data *drv = bss->drv; 5599 int ifindex; 5600 struct nl_msg *msg; 5601 int ret; 5602 int tdls = 0; 5603 5604 /* Ignore for P2P Device */ 5605 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 5606 return 0; 5607 5608 ifindex = if_nametoindex(ifname); 5609 wpa_printf(MSG_DEBUG, "%s: ifindex=%d (%s) alg=%d addr=%p key_idx=%d " 5610 "set_tx=%d seq_len=%lu key_len=%lu", 5611 __func__, ifindex, ifname, alg, addr, key_idx, set_tx, 5612 (unsigned long) seq_len, (unsigned long) key_len); 5613#ifdef CONFIG_TDLS 5614 if (key_idx == -1) { 5615 key_idx = 0; 5616 tdls = 1; 5617 } 5618#endif /* CONFIG_TDLS */ 5619 5620 msg = nlmsg_alloc(); 5621 if (!msg) 5622 return -ENOMEM; 5623 5624 if (alg == WPA_ALG_NONE) { 5625 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY); 5626 } else { 5627 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY); 5628 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key); 5629 wpa_hexdump_key(MSG_DEBUG, "nl80211: KEY_DATA", key, key_len); 5630 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5631 wpa_alg_to_cipher_suite(alg, key_len)); 5632 } 5633 5634 if (seq && seq_len) { 5635 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq); 5636 wpa_hexdump(MSG_DEBUG, "nl80211: KEY_SEQ", seq, seq_len); 5637 } 5638 5639 if (addr && !is_broadcast_ether_addr(addr)) { 5640 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr)); 5641 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 5642 5643 if (alg != WPA_ALG_WEP && key_idx && !set_tx) { 5644 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK"); 5645 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, 5646 NL80211_KEYTYPE_GROUP); 5647 } 5648 } else if (addr && is_broadcast_ether_addr(addr)) { 5649 struct nlattr *types; 5650 5651 wpa_printf(MSG_DEBUG, " broadcast key"); 5652 5653 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5654 if (!types) 5655 goto nla_put_failure; 5656 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 5657 nla_nest_end(msg, types); 5658 } 5659 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 5660 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5661 5662 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5663 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE) 5664 ret = 0; 5665 if (ret) 5666 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)", 5667 ret, strerror(-ret)); 5668 5669 /* 5670 * If we failed or don't need to set the default TX key (below), 5671 * we're done here. 5672 */ 5673 if (ret || !set_tx || alg == WPA_ALG_NONE || tdls) 5674 return ret; 5675 if (is_ap_interface(drv->nlmode) && addr && 5676 !is_broadcast_ether_addr(addr)) 5677 return ret; 5678 5679 msg = nlmsg_alloc(); 5680 if (!msg) 5681 return -ENOMEM; 5682 5683 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY); 5684 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 5685 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5686 if (alg == WPA_ALG_IGTK) 5687 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT); 5688 else 5689 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT); 5690 if (addr && is_broadcast_ether_addr(addr)) { 5691 struct nlattr *types; 5692 5693 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5694 if (!types) 5695 goto nla_put_failure; 5696 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 5697 nla_nest_end(msg, types); 5698 } else if (addr) { 5699 struct nlattr *types; 5700 5701 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5702 if (!types) 5703 goto nla_put_failure; 5704 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_UNICAST); 5705 nla_nest_end(msg, types); 5706 } 5707 5708 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5709 if (ret == -ENOENT) 5710 ret = 0; 5711 if (ret) 5712 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; " 5713 "err=%d %s)", ret, strerror(-ret)); 5714 return ret; 5715 5716nla_put_failure: 5717 nlmsg_free(msg); 5718 return -ENOBUFS; 5719} 5720 5721 5722static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg, 5723 int key_idx, int defkey, 5724 const u8 *seq, size_t seq_len, 5725 const u8 *key, size_t key_len) 5726{ 5727 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY); 5728 if (!key_attr) 5729 return -1; 5730 5731 if (defkey && alg == WPA_ALG_IGTK) 5732 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT); 5733 else if (defkey) 5734 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 5735 5736 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx); 5737 5738 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5739 wpa_alg_to_cipher_suite(alg, key_len)); 5740 5741 if (seq && seq_len) 5742 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq); 5743 5744 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key); 5745 5746 nla_nest_end(msg, key_attr); 5747 5748 return 0; 5749 nla_put_failure: 5750 return -1; 5751} 5752 5753 5754static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params, 5755 struct nl_msg *msg) 5756{ 5757 int i, privacy = 0; 5758 struct nlattr *nl_keys, *nl_key; 5759 5760 for (i = 0; i < 4; i++) { 5761 if (!params->wep_key[i]) 5762 continue; 5763 privacy = 1; 5764 break; 5765 } 5766 if (params->wps == WPS_MODE_PRIVACY) 5767 privacy = 1; 5768 if (params->pairwise_suite && 5769 params->pairwise_suite != WPA_CIPHER_NONE) 5770 privacy = 1; 5771 5772 if (!privacy) 5773 return 0; 5774 5775 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 5776 5777 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS); 5778 if (!nl_keys) 5779 goto nla_put_failure; 5780 5781 for (i = 0; i < 4; i++) { 5782 if (!params->wep_key[i]) 5783 continue; 5784 5785 nl_key = nla_nest_start(msg, i); 5786 if (!nl_key) 5787 goto nla_put_failure; 5788 5789 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i], 5790 params->wep_key[i]); 5791 if (params->wep_key_len[i] == 5) 5792 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5793 WLAN_CIPHER_SUITE_WEP40); 5794 else 5795 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5796 WLAN_CIPHER_SUITE_WEP104); 5797 5798 NLA_PUT_U8(msg, NL80211_KEY_IDX, i); 5799 5800 if (i == params->wep_tx_keyidx) 5801 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 5802 5803 nla_nest_end(msg, nl_key); 5804 } 5805 nla_nest_end(msg, nl_keys); 5806 5807 return 0; 5808 5809nla_put_failure: 5810 return -ENOBUFS; 5811} 5812 5813 5814static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 5815 const u8 *addr, int cmd, u16 reason_code, 5816 int local_state_change) 5817{ 5818 int ret = -1; 5819 struct nl_msg *msg; 5820 5821 msg = nlmsg_alloc(); 5822 if (!msg) 5823 return -1; 5824 5825 nl80211_cmd(drv, msg, 0, cmd); 5826 5827 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5828 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code); 5829 if (addr) 5830 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 5831 if (local_state_change) 5832 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 5833 5834 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5835 msg = NULL; 5836 if (ret) { 5837 wpa_dbg(drv->ctx, MSG_DEBUG, 5838 "nl80211: MLME command failed: reason=%u ret=%d (%s)", 5839 reason_code, ret, strerror(-ret)); 5840 goto nla_put_failure; 5841 } 5842 ret = 0; 5843 5844nla_put_failure: 5845 nlmsg_free(msg); 5846 return ret; 5847} 5848 5849 5850static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv, 5851 int reason_code) 5852{ 5853 int ret; 5854 5855 wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code); 5856 nl80211_mark_disconnected(drv); 5857 /* Disconnect command doesn't need BSSID - it uses cached value */ 5858 ret = wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT, 5859 reason_code, 0); 5860 /* 5861 * For locally generated disconnect, supplicant already generates a 5862 * DEAUTH event, so ignore the event from NL80211. 5863 */ 5864 drv->ignore_next_local_disconnect = ret == 0; 5865 5866 return ret; 5867} 5868 5869 5870static int wpa_driver_nl80211_deauthenticate(struct i802_bss *bss, 5871 const u8 *addr, int reason_code) 5872{ 5873 struct wpa_driver_nl80211_data *drv = bss->drv; 5874 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) 5875 return wpa_driver_nl80211_disconnect(drv, reason_code); 5876 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)", 5877 __func__, MAC2STR(addr), reason_code); 5878 nl80211_mark_disconnected(drv); 5879 if (drv->nlmode == NL80211_IFTYPE_ADHOC) 5880 return nl80211_leave_ibss(drv); 5881 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE, 5882 reason_code, 0); 5883} 5884 5885 5886static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv, 5887 struct wpa_driver_auth_params *params) 5888{ 5889 int i; 5890 5891 drv->auth_freq = params->freq; 5892 drv->auth_alg = params->auth_alg; 5893 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx; 5894 drv->auth_local_state_change = params->local_state_change; 5895 drv->auth_p2p = params->p2p; 5896 5897 if (params->bssid) 5898 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN); 5899 else 5900 os_memset(drv->auth_bssid_, 0, ETH_ALEN); 5901 5902 if (params->ssid) { 5903 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len); 5904 drv->auth_ssid_len = params->ssid_len; 5905 } else 5906 drv->auth_ssid_len = 0; 5907 5908 5909 os_free(drv->auth_ie); 5910 drv->auth_ie = NULL; 5911 drv->auth_ie_len = 0; 5912 if (params->ie) { 5913 drv->auth_ie = os_malloc(params->ie_len); 5914 if (drv->auth_ie) { 5915 os_memcpy(drv->auth_ie, params->ie, params->ie_len); 5916 drv->auth_ie_len = params->ie_len; 5917 } 5918 } 5919 5920 for (i = 0; i < 4; i++) { 5921 if (params->wep_key[i] && params->wep_key_len[i] && 5922 params->wep_key_len[i] <= 16) { 5923 os_memcpy(drv->auth_wep_key[i], params->wep_key[i], 5924 params->wep_key_len[i]); 5925 drv->auth_wep_key_len[i] = params->wep_key_len[i]; 5926 } else 5927 drv->auth_wep_key_len[i] = 0; 5928 } 5929} 5930 5931 5932static int wpa_driver_nl80211_authenticate( 5933 struct i802_bss *bss, struct wpa_driver_auth_params *params) 5934{ 5935 struct wpa_driver_nl80211_data *drv = bss->drv; 5936 int ret = -1, i; 5937 struct nl_msg *msg; 5938 enum nl80211_auth_type type; 5939 enum nl80211_iftype nlmode; 5940 int count = 0; 5941 int is_retry; 5942 5943 is_retry = drv->retry_auth; 5944 drv->retry_auth = 0; 5945 drv->ignore_deauth_event = 0; 5946 5947 nl80211_mark_disconnected(drv); 5948 os_memset(drv->auth_bssid, 0, ETH_ALEN); 5949 if (params->bssid) 5950 os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN); 5951 else 5952 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 5953 /* FIX: IBSS mode */ 5954 nlmode = params->p2p ? 5955 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 5956 if (drv->nlmode != nlmode && 5957 wpa_driver_nl80211_set_mode(bss, nlmode) < 0) 5958 return -1; 5959 5960retry: 5961 msg = nlmsg_alloc(); 5962 if (!msg) 5963 return -1; 5964 5965 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)", 5966 drv->ifindex); 5967 5968 nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE); 5969 5970 for (i = 0; i < 4; i++) { 5971 if (!params->wep_key[i]) 5972 continue; 5973 wpa_driver_nl80211_set_key(bss->ifname, bss, WPA_ALG_WEP, 5974 NULL, i, 5975 i == params->wep_tx_keyidx, NULL, 0, 5976 params->wep_key[i], 5977 params->wep_key_len[i]); 5978 if (params->wep_tx_keyidx != i) 5979 continue; 5980 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0, 5981 params->wep_key[i], params->wep_key_len[i])) { 5982 nlmsg_free(msg); 5983 return -1; 5984 } 5985 } 5986 5987 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5988 if (params->bssid) { 5989 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 5990 MAC2STR(params->bssid)); 5991 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 5992 } 5993 if (params->freq) { 5994 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 5995 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 5996 } 5997 if (params->ssid) { 5998 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 5999 params->ssid, params->ssid_len); 6000 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 6001 params->ssid); 6002 } 6003 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len); 6004 if (params->ie) 6005 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie); 6006 if (params->sae_data) { 6007 wpa_hexdump(MSG_DEBUG, " * SAE data", params->sae_data, 6008 params->sae_data_len); 6009 NLA_PUT(msg, NL80211_ATTR_SAE_DATA, params->sae_data_len, 6010 params->sae_data); 6011 } 6012 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 6013 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 6014 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 6015 type = NL80211_AUTHTYPE_SHARED_KEY; 6016 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 6017 type = NL80211_AUTHTYPE_NETWORK_EAP; 6018 else if (params->auth_alg & WPA_AUTH_ALG_FT) 6019 type = NL80211_AUTHTYPE_FT; 6020 else if (params->auth_alg & WPA_AUTH_ALG_SAE) 6021 type = NL80211_AUTHTYPE_SAE; 6022 else 6023 goto nla_put_failure; 6024 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 6025 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 6026 if (params->local_state_change) { 6027 wpa_printf(MSG_DEBUG, " * Local state change only"); 6028 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 6029 } 6030 6031 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6032 msg = NULL; 6033 if (ret) { 6034 wpa_dbg(drv->ctx, MSG_DEBUG, 6035 "nl80211: MLME command failed (auth): ret=%d (%s)", 6036 ret, strerror(-ret)); 6037 count++; 6038 if (ret == -EALREADY && count == 1 && params->bssid && 6039 !params->local_state_change) { 6040 /* 6041 * mac80211 does not currently accept new 6042 * authentication if we are already authenticated. As a 6043 * workaround, force deauthentication and try again. 6044 */ 6045 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication " 6046 "after forced deauthentication"); 6047 drv->ignore_deauth_event = 1; 6048 wpa_driver_nl80211_deauthenticate( 6049 bss, params->bssid, 6050 WLAN_REASON_PREV_AUTH_NOT_VALID); 6051 nlmsg_free(msg); 6052 goto retry; 6053 } 6054 6055 if (ret == -ENOENT && params->freq && !is_retry) { 6056 /* 6057 * cfg80211 has likely expired the BSS entry even 6058 * though it was previously available in our internal 6059 * BSS table. To recover quickly, start a single 6060 * channel scan on the specified channel. 6061 */ 6062 struct wpa_driver_scan_params scan; 6063 int freqs[2]; 6064 6065 os_memset(&scan, 0, sizeof(scan)); 6066 scan.num_ssids = 1; 6067 if (params->ssid) { 6068 scan.ssids[0].ssid = params->ssid; 6069 scan.ssids[0].ssid_len = params->ssid_len; 6070 } 6071 freqs[0] = params->freq; 6072 freqs[1] = 0; 6073 scan.freqs = freqs; 6074 wpa_printf(MSG_DEBUG, "nl80211: Trigger single " 6075 "channel scan to refresh cfg80211 BSS " 6076 "entry"); 6077 ret = wpa_driver_nl80211_scan(bss, &scan); 6078 if (ret == 0) { 6079 nl80211_copy_auth_params(drv, params); 6080 drv->scan_for_auth = 1; 6081 } 6082 } else if (is_retry) { 6083 /* 6084 * Need to indicate this with an event since the return 6085 * value from the retry is not delivered to core code. 6086 */ 6087 union wpa_event_data event; 6088 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry " 6089 "failed"); 6090 os_memset(&event, 0, sizeof(event)); 6091 os_memcpy(event.timeout_event.addr, drv->auth_bssid_, 6092 ETH_ALEN); 6093 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT, 6094 &event); 6095 } 6096 6097 goto nla_put_failure; 6098 } 6099 ret = 0; 6100 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send " 6101 "successfully"); 6102 6103nla_put_failure: 6104 nlmsg_free(msg); 6105 return ret; 6106} 6107 6108 6109static int wpa_driver_nl80211_authenticate_retry( 6110 struct wpa_driver_nl80211_data *drv) 6111{ 6112 struct wpa_driver_auth_params params; 6113 struct i802_bss *bss = drv->first_bss; 6114 int i; 6115 6116 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again"); 6117 6118 os_memset(¶ms, 0, sizeof(params)); 6119 params.freq = drv->auth_freq; 6120 params.auth_alg = drv->auth_alg; 6121 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx; 6122 params.local_state_change = drv->auth_local_state_change; 6123 params.p2p = drv->auth_p2p; 6124 6125 if (!is_zero_ether_addr(drv->auth_bssid_)) 6126 params.bssid = drv->auth_bssid_; 6127 6128 if (drv->auth_ssid_len) { 6129 params.ssid = drv->auth_ssid; 6130 params.ssid_len = drv->auth_ssid_len; 6131 } 6132 6133 params.ie = drv->auth_ie; 6134 params.ie_len = drv->auth_ie_len; 6135 6136 for (i = 0; i < 4; i++) { 6137 if (drv->auth_wep_key_len[i]) { 6138 params.wep_key[i] = drv->auth_wep_key[i]; 6139 params.wep_key_len[i] = drv->auth_wep_key_len[i]; 6140 } 6141 } 6142 6143 drv->retry_auth = 1; 6144 return wpa_driver_nl80211_authenticate(bss, ¶ms); 6145} 6146 6147 6148struct phy_info_arg { 6149 u16 *num_modes; 6150 struct hostapd_hw_modes *modes; 6151 int last_mode, last_chan_idx; 6152}; 6153 6154static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa, 6155 struct nlattr *ampdu_factor, 6156 struct nlattr *ampdu_density, 6157 struct nlattr *mcs_set) 6158{ 6159 if (capa) 6160 mode->ht_capab = nla_get_u16(capa); 6161 6162 if (ampdu_factor) 6163 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03; 6164 6165 if (ampdu_density) 6166 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2; 6167 6168 if (mcs_set && nla_len(mcs_set) >= 16) { 6169 u8 *mcs; 6170 mcs = nla_data(mcs_set); 6171 os_memcpy(mode->mcs_set, mcs, 16); 6172 } 6173} 6174 6175 6176static void phy_info_vht_capa(struct hostapd_hw_modes *mode, 6177 struct nlattr *capa, 6178 struct nlattr *mcs_set) 6179{ 6180 if (capa) 6181 mode->vht_capab = nla_get_u32(capa); 6182 6183 if (mcs_set && nla_len(mcs_set) >= 8) { 6184 u8 *mcs; 6185 mcs = nla_data(mcs_set); 6186 os_memcpy(mode->vht_mcs_set, mcs, 8); 6187 } 6188} 6189 6190 6191static void phy_info_freq(struct hostapd_hw_modes *mode, 6192 struct hostapd_channel_data *chan, 6193 struct nlattr *tb_freq[]) 6194{ 6195 u8 channel; 6196 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]); 6197 chan->flag = 0; 6198 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES) 6199 chan->chan = channel; 6200 6201 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) 6202 chan->flag |= HOSTAPD_CHAN_DISABLED; 6203 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IR]) 6204 chan->flag |= HOSTAPD_CHAN_PASSIVE_SCAN | HOSTAPD_CHAN_NO_IBSS; 6205 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR]) 6206 chan->flag |= HOSTAPD_CHAN_RADAR; 6207 6208 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) { 6209 enum nl80211_dfs_state state = 6210 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]); 6211 6212 switch (state) { 6213 case NL80211_DFS_USABLE: 6214 chan->flag |= HOSTAPD_CHAN_DFS_USABLE; 6215 break; 6216 case NL80211_DFS_AVAILABLE: 6217 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE; 6218 break; 6219 case NL80211_DFS_UNAVAILABLE: 6220 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE; 6221 break; 6222 } 6223 } 6224} 6225 6226 6227static int phy_info_freqs(struct phy_info_arg *phy_info, 6228 struct hostapd_hw_modes *mode, struct nlattr *tb) 6229{ 6230 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 6231 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 }, 6232 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG }, 6233 [NL80211_FREQUENCY_ATTR_NO_IR] = { .type = NLA_FLAG }, 6234 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG }, 6235 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 }, 6236 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 }, 6237 }; 6238 int new_channels = 0; 6239 struct hostapd_channel_data *channel; 6240 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1]; 6241 struct nlattr *nl_freq; 6242 int rem_freq, idx; 6243 6244 if (tb == NULL) 6245 return NL_OK; 6246 6247 nla_for_each_nested(nl_freq, tb, rem_freq) { 6248 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 6249 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 6250 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 6251 continue; 6252 new_channels++; 6253 } 6254 6255 channel = os_realloc_array(mode->channels, 6256 mode->num_channels + new_channels, 6257 sizeof(struct hostapd_channel_data)); 6258 if (!channel) 6259 return NL_SKIP; 6260 6261 mode->channels = channel; 6262 mode->num_channels += new_channels; 6263 6264 idx = phy_info->last_chan_idx; 6265 6266 nla_for_each_nested(nl_freq, tb, rem_freq) { 6267 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 6268 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 6269 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 6270 continue; 6271 phy_info_freq(mode, &mode->channels[idx], tb_freq); 6272 idx++; 6273 } 6274 phy_info->last_chan_idx = idx; 6275 6276 return NL_OK; 6277} 6278 6279 6280static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb) 6281{ 6282 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = { 6283 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 }, 6284 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = 6285 { .type = NLA_FLAG }, 6286 }; 6287 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1]; 6288 struct nlattr *nl_rate; 6289 int rem_rate, idx; 6290 6291 if (tb == NULL) 6292 return NL_OK; 6293 6294 nla_for_each_nested(nl_rate, tb, rem_rate) { 6295 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 6296 nla_data(nl_rate), nla_len(nl_rate), 6297 rate_policy); 6298 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 6299 continue; 6300 mode->num_rates++; 6301 } 6302 6303 mode->rates = os_calloc(mode->num_rates, sizeof(int)); 6304 if (!mode->rates) 6305 return NL_SKIP; 6306 6307 idx = 0; 6308 6309 nla_for_each_nested(nl_rate, tb, rem_rate) { 6310 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 6311 nla_data(nl_rate), nla_len(nl_rate), 6312 rate_policy); 6313 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 6314 continue; 6315 mode->rates[idx] = nla_get_u32( 6316 tb_rate[NL80211_BITRATE_ATTR_RATE]); 6317 idx++; 6318 } 6319 6320 return NL_OK; 6321} 6322 6323 6324static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band) 6325{ 6326 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1]; 6327 struct hostapd_hw_modes *mode; 6328 int ret; 6329 6330 if (phy_info->last_mode != nl_band->nla_type) { 6331 mode = os_realloc_array(phy_info->modes, 6332 *phy_info->num_modes + 1, 6333 sizeof(*mode)); 6334 if (!mode) 6335 return NL_SKIP; 6336 phy_info->modes = mode; 6337 6338 mode = &phy_info->modes[*(phy_info->num_modes)]; 6339 os_memset(mode, 0, sizeof(*mode)); 6340 mode->mode = NUM_HOSTAPD_MODES; 6341 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN | 6342 HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN; 6343 6344 /* 6345 * Unsupported VHT MCS stream is defined as value 3, so the VHT 6346 * MCS RX/TX map must be initialized with 0xffff to mark all 8 6347 * possible streams as unsupported. This will be overridden if 6348 * driver advertises VHT support. 6349 */ 6350 mode->vht_mcs_set[0] = 0xff; 6351 mode->vht_mcs_set[1] = 0xff; 6352 mode->vht_mcs_set[4] = 0xff; 6353 mode->vht_mcs_set[5] = 0xff; 6354 6355 *(phy_info->num_modes) += 1; 6356 phy_info->last_mode = nl_band->nla_type; 6357 phy_info->last_chan_idx = 0; 6358 } else 6359 mode = &phy_info->modes[*(phy_info->num_modes) - 1]; 6360 6361 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band), 6362 nla_len(nl_band), NULL); 6363 6364 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA], 6365 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR], 6366 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY], 6367 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]); 6368 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA], 6369 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]); 6370 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]); 6371 if (ret != NL_OK) 6372 return ret; 6373 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]); 6374 if (ret != NL_OK) 6375 return ret; 6376 6377 return NL_OK; 6378} 6379 6380 6381static int phy_info_handler(struct nl_msg *msg, void *arg) 6382{ 6383 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 6384 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 6385 struct phy_info_arg *phy_info = arg; 6386 struct nlattr *nl_band; 6387 int rem_band; 6388 6389 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 6390 genlmsg_attrlen(gnlh, 0), NULL); 6391 6392 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS]) 6393 return NL_SKIP; 6394 6395 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) 6396 { 6397 int res = phy_info_band(phy_info, nl_band); 6398 if (res != NL_OK) 6399 return res; 6400 } 6401 6402 return NL_SKIP; 6403} 6404 6405 6406static struct hostapd_hw_modes * 6407wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes, 6408 u16 *num_modes) 6409{ 6410 u16 m; 6411 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode; 6412 int i, mode11g_idx = -1; 6413 6414 /* heuristic to set up modes */ 6415 for (m = 0; m < *num_modes; m++) { 6416 if (!modes[m].num_channels) 6417 continue; 6418 if (modes[m].channels[0].freq < 4000) { 6419 modes[m].mode = HOSTAPD_MODE_IEEE80211B; 6420 for (i = 0; i < modes[m].num_rates; i++) { 6421 if (modes[m].rates[i] > 200) { 6422 modes[m].mode = HOSTAPD_MODE_IEEE80211G; 6423 break; 6424 } 6425 } 6426 } else if (modes[m].channels[0].freq > 50000) 6427 modes[m].mode = HOSTAPD_MODE_IEEE80211AD; 6428 else 6429 modes[m].mode = HOSTAPD_MODE_IEEE80211A; 6430 } 6431 6432 /* If only 802.11g mode is included, use it to construct matching 6433 * 802.11b mode data. */ 6434 6435 for (m = 0; m < *num_modes; m++) { 6436 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B) 6437 return modes; /* 802.11b already included */ 6438 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G) 6439 mode11g_idx = m; 6440 } 6441 6442 if (mode11g_idx < 0) 6443 return modes; /* 2.4 GHz band not supported at all */ 6444 6445 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes)); 6446 if (nmodes == NULL) 6447 return modes; /* Could not add 802.11b mode */ 6448 6449 mode = &nmodes[*num_modes]; 6450 os_memset(mode, 0, sizeof(*mode)); 6451 (*num_modes)++; 6452 modes = nmodes; 6453 6454 mode->mode = HOSTAPD_MODE_IEEE80211B; 6455 6456 mode11g = &modes[mode11g_idx]; 6457 mode->num_channels = mode11g->num_channels; 6458 mode->channels = os_malloc(mode11g->num_channels * 6459 sizeof(struct hostapd_channel_data)); 6460 if (mode->channels == NULL) { 6461 (*num_modes)--; 6462 return modes; /* Could not add 802.11b mode */ 6463 } 6464 os_memcpy(mode->channels, mode11g->channels, 6465 mode11g->num_channels * sizeof(struct hostapd_channel_data)); 6466 6467 mode->num_rates = 0; 6468 mode->rates = os_malloc(4 * sizeof(int)); 6469 if (mode->rates == NULL) { 6470 os_free(mode->channels); 6471 (*num_modes)--; 6472 return modes; /* Could not add 802.11b mode */ 6473 } 6474 6475 for (i = 0; i < mode11g->num_rates; i++) { 6476 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 && 6477 mode11g->rates[i] != 55 && mode11g->rates[i] != 110) 6478 continue; 6479 mode->rates[mode->num_rates] = mode11g->rates[i]; 6480 mode->num_rates++; 6481 if (mode->num_rates == 4) 6482 break; 6483 } 6484 6485 if (mode->num_rates == 0) { 6486 os_free(mode->channels); 6487 os_free(mode->rates); 6488 (*num_modes)--; 6489 return modes; /* No 802.11b rates */ 6490 } 6491 6492 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g " 6493 "information"); 6494 6495 return modes; 6496} 6497 6498 6499static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start, 6500 int end) 6501{ 6502 int c; 6503 6504 for (c = 0; c < mode->num_channels; c++) { 6505 struct hostapd_channel_data *chan = &mode->channels[c]; 6506 if (chan->freq - 10 >= start && chan->freq + 10 <= end) 6507 chan->flag |= HOSTAPD_CHAN_HT40; 6508 } 6509} 6510 6511 6512static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start, 6513 int end) 6514{ 6515 int c; 6516 6517 for (c = 0; c < mode->num_channels; c++) { 6518 struct hostapd_channel_data *chan = &mode->channels[c]; 6519 if (!(chan->flag & HOSTAPD_CHAN_HT40)) 6520 continue; 6521 if (chan->freq - 30 >= start && chan->freq - 10 <= end) 6522 chan->flag |= HOSTAPD_CHAN_HT40MINUS; 6523 if (chan->freq + 10 >= start && chan->freq + 30 <= end) 6524 chan->flag |= HOSTAPD_CHAN_HT40PLUS; 6525 } 6526} 6527 6528 6529static void nl80211_reg_rule_max_eirp(u32 start, u32 end, u32 max_eirp, 6530 struct phy_info_arg *results) 6531{ 6532 u16 m; 6533 6534 for (m = 0; m < *results->num_modes; m++) { 6535 int c; 6536 struct hostapd_hw_modes *mode = &results->modes[m]; 6537 6538 for (c = 0; c < mode->num_channels; c++) { 6539 struct hostapd_channel_data *chan = &mode->channels[c]; 6540 if ((u32) chan->freq - 10 >= start && 6541 (u32) chan->freq + 10 <= end) 6542 chan->max_tx_power = max_eirp; 6543 } 6544 } 6545} 6546 6547 6548static void nl80211_reg_rule_ht40(u32 start, u32 end, 6549 struct phy_info_arg *results) 6550{ 6551 u16 m; 6552 6553 for (m = 0; m < *results->num_modes; m++) { 6554 if (!(results->modes[m].ht_capab & 6555 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6556 continue; 6557 nl80211_set_ht40_mode(&results->modes[m], start, end); 6558 } 6559} 6560 6561 6562static void nl80211_reg_rule_sec(struct nlattr *tb[], 6563 struct phy_info_arg *results) 6564{ 6565 u32 start, end, max_bw; 6566 u16 m; 6567 6568 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6569 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 6570 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 6571 return; 6572 6573 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6574 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6575 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6576 6577 if (max_bw < 20) 6578 return; 6579 6580 for (m = 0; m < *results->num_modes; m++) { 6581 if (!(results->modes[m].ht_capab & 6582 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6583 continue; 6584 nl80211_set_ht40_mode_sec(&results->modes[m], start, end); 6585 } 6586} 6587 6588 6589static void nl80211_set_vht_mode(struct hostapd_hw_modes *mode, int start, 6590 int end) 6591{ 6592 int c; 6593 6594 for (c = 0; c < mode->num_channels; c++) { 6595 struct hostapd_channel_data *chan = &mode->channels[c]; 6596 if (chan->freq - 10 >= start && chan->freq + 70 <= end) 6597 chan->flag |= HOSTAPD_CHAN_VHT_10_70; 6598 6599 if (chan->freq - 30 >= start && chan->freq + 50 <= end) 6600 chan->flag |= HOSTAPD_CHAN_VHT_30_50; 6601 6602 if (chan->freq - 50 >= start && chan->freq + 30 <= end) 6603 chan->flag |= HOSTAPD_CHAN_VHT_50_30; 6604 6605 if (chan->freq - 70 >= start && chan->freq + 10 <= end) 6606 chan->flag |= HOSTAPD_CHAN_VHT_70_10; 6607 } 6608} 6609 6610 6611static void nl80211_reg_rule_vht(struct nlattr *tb[], 6612 struct phy_info_arg *results) 6613{ 6614 u32 start, end, max_bw; 6615 u16 m; 6616 6617 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6618 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 6619 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 6620 return; 6621 6622 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6623 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6624 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6625 6626 if (max_bw < 80) 6627 return; 6628 6629 for (m = 0; m < *results->num_modes; m++) { 6630 if (!(results->modes[m].ht_capab & 6631 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6632 continue; 6633 /* TODO: use a real VHT support indication */ 6634 if (!results->modes[m].vht_capab) 6635 continue; 6636 6637 nl80211_set_vht_mode(&results->modes[m], start, end); 6638 } 6639} 6640 6641 6642static const char * dfs_domain_name(enum nl80211_dfs_regions region) 6643{ 6644 switch (region) { 6645 case NL80211_DFS_UNSET: 6646 return "DFS-UNSET"; 6647 case NL80211_DFS_FCC: 6648 return "DFS-FCC"; 6649 case NL80211_DFS_ETSI: 6650 return "DFS-ETSI"; 6651 case NL80211_DFS_JP: 6652 return "DFS-JP"; 6653 default: 6654 return "DFS-invalid"; 6655 } 6656} 6657 6658 6659static int nl80211_get_reg(struct nl_msg *msg, void *arg) 6660{ 6661 struct phy_info_arg *results = arg; 6662 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 6663 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 6664 struct nlattr *nl_rule; 6665 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1]; 6666 int rem_rule; 6667 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 6668 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, 6669 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, 6670 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, 6671 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, 6672 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, 6673 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, 6674 }; 6675 6676 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 6677 genlmsg_attrlen(gnlh, 0), NULL); 6678 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] || 6679 !tb_msg[NL80211_ATTR_REG_RULES]) { 6680 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information " 6681 "available"); 6682 return NL_SKIP; 6683 } 6684 6685 if (tb_msg[NL80211_ATTR_DFS_REGION]) { 6686 enum nl80211_dfs_regions dfs_domain; 6687 dfs_domain = nla_get_u8(tb_msg[NL80211_ATTR_DFS_REGION]); 6688 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s (%s)", 6689 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]), 6690 dfs_domain_name(dfs_domain)); 6691 } else { 6692 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s", 6693 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2])); 6694 } 6695 6696 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6697 { 6698 u32 start, end, max_eirp = 0, max_bw = 0, flags = 0; 6699 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6700 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6701 if (tb_rule[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6702 tb_rule[NL80211_ATTR_FREQ_RANGE_END] == NULL) 6703 continue; 6704 start = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6705 end = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6706 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) 6707 max_eirp = nla_get_u32(tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) / 100; 6708 if (tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) 6709 max_bw = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6710 if (tb_rule[NL80211_ATTR_REG_RULE_FLAGS]) 6711 flags = nla_get_u32(tb_rule[NL80211_ATTR_REG_RULE_FLAGS]); 6712 6713 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz %u mBm%s%s%s%s%s%s%s%s", 6714 start, end, max_bw, max_eirp, 6715 flags & NL80211_RRF_NO_OFDM ? " (no OFDM)" : "", 6716 flags & NL80211_RRF_NO_CCK ? " (no CCK)" : "", 6717 flags & NL80211_RRF_NO_INDOOR ? " (no indoor)" : "", 6718 flags & NL80211_RRF_NO_OUTDOOR ? " (no outdoor)" : 6719 "", 6720 flags & NL80211_RRF_DFS ? " (DFS)" : "", 6721 flags & NL80211_RRF_PTP_ONLY ? " (PTP only)" : "", 6722 flags & NL80211_RRF_PTMP_ONLY ? " (PTMP only)" : "", 6723 flags & NL80211_RRF_NO_IR ? " (no IR)" : ""); 6724 if (max_bw >= 40) 6725 nl80211_reg_rule_ht40(start, end, results); 6726 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) 6727 nl80211_reg_rule_max_eirp(start, end, max_eirp, 6728 results); 6729 } 6730 6731 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6732 { 6733 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6734 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6735 nl80211_reg_rule_sec(tb_rule, results); 6736 } 6737 6738 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6739 { 6740 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6741 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6742 nl80211_reg_rule_vht(tb_rule, results); 6743 } 6744 6745 return NL_SKIP; 6746} 6747 6748 6749static int nl80211_set_regulatory_flags(struct wpa_driver_nl80211_data *drv, 6750 struct phy_info_arg *results) 6751{ 6752 struct nl_msg *msg; 6753 6754 msg = nlmsg_alloc(); 6755 if (!msg) 6756 return -ENOMEM; 6757 6758 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 6759 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results); 6760} 6761 6762 6763static struct hostapd_hw_modes * 6764wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags) 6765{ 6766 u32 feat; 6767 struct i802_bss *bss = priv; 6768 struct wpa_driver_nl80211_data *drv = bss->drv; 6769 struct nl_msg *msg; 6770 struct phy_info_arg result = { 6771 .num_modes = num_modes, 6772 .modes = NULL, 6773 .last_mode = -1, 6774 }; 6775 6776 *num_modes = 0; 6777 *flags = 0; 6778 6779 msg = nlmsg_alloc(); 6780 if (!msg) 6781 return NULL; 6782 6783 feat = get_nl80211_protocol_features(drv); 6784 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 6785 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 6786 else 6787 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 6788 6789 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 6790 if (nl80211_set_iface_id(msg, bss) < 0) 6791 goto nla_put_failure; 6792 6793 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) { 6794 nl80211_set_regulatory_flags(drv, &result); 6795 return wpa_driver_nl80211_postprocess_modes(result.modes, 6796 num_modes); 6797 } 6798 msg = NULL; 6799 nla_put_failure: 6800 nlmsg_free(msg); 6801 return NULL; 6802} 6803 6804 6805static int wpa_driver_nl80211_send_mntr(struct wpa_driver_nl80211_data *drv, 6806 const void *data, size_t len, 6807 int encrypt, int noack) 6808{ 6809 __u8 rtap_hdr[] = { 6810 0x00, 0x00, /* radiotap version */ 6811 0x0e, 0x00, /* radiotap length */ 6812 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */ 6813 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */ 6814 0x00, /* padding */ 6815 0x00, 0x00, /* RX and TX flags to indicate that */ 6816 0x00, 0x00, /* this is the injected frame directly */ 6817 }; 6818 struct iovec iov[2] = { 6819 { 6820 .iov_base = &rtap_hdr, 6821 .iov_len = sizeof(rtap_hdr), 6822 }, 6823 { 6824 .iov_base = (void *) data, 6825 .iov_len = len, 6826 } 6827 }; 6828 struct msghdr msg = { 6829 .msg_name = NULL, 6830 .msg_namelen = 0, 6831 .msg_iov = iov, 6832 .msg_iovlen = 2, 6833 .msg_control = NULL, 6834 .msg_controllen = 0, 6835 .msg_flags = 0, 6836 }; 6837 int res; 6838 u16 txflags = 0; 6839 6840 if (encrypt) 6841 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP; 6842 6843 if (drv->monitor_sock < 0) { 6844 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available " 6845 "for %s", __func__); 6846 return -1; 6847 } 6848 6849 if (noack) 6850 txflags |= IEEE80211_RADIOTAP_F_TX_NOACK; 6851 WPA_PUT_LE16(&rtap_hdr[12], txflags); 6852 6853 res = sendmsg(drv->monitor_sock, &msg, 0); 6854 if (res < 0) { 6855 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno)); 6856 return -1; 6857 } 6858 return 0; 6859} 6860 6861 6862static int wpa_driver_nl80211_send_frame(struct i802_bss *bss, 6863 const void *data, size_t len, 6864 int encrypt, int noack, 6865 unsigned int freq, int no_cck, 6866 int offchanok, unsigned int wait_time) 6867{ 6868 struct wpa_driver_nl80211_data *drv = bss->drv; 6869 u64 cookie; 6870 int res; 6871 6872 if (freq == 0) { 6873 wpa_printf(MSG_DEBUG, "nl80211: send_frame - Use bss->freq=%u", 6874 bss->freq); 6875 freq = bss->freq; 6876 } 6877 6878 if (drv->use_monitor) { 6879 wpa_printf(MSG_DEBUG, "nl80211: send_frame(freq=%u bss->freq=%u) -> send_mntr", 6880 freq, bss->freq); 6881 return wpa_driver_nl80211_send_mntr(drv, data, len, 6882 encrypt, noack); 6883 } 6884 6885 wpa_printf(MSG_DEBUG, "nl80211: send_frame -> send_frame_cmd"); 6886 res = nl80211_send_frame_cmd(bss, freq, wait_time, data, len, 6887 &cookie, no_cck, noack, offchanok); 6888 if (res == 0 && !noack) { 6889 const struct ieee80211_mgmt *mgmt; 6890 u16 fc; 6891 6892 mgmt = (const struct ieee80211_mgmt *) data; 6893 fc = le_to_host16(mgmt->frame_control); 6894 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6895 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_ACTION) { 6896 wpa_printf(MSG_MSGDUMP, 6897 "nl80211: Update send_action_cookie from 0x%llx to 0x%llx", 6898 (long long unsigned int) 6899 drv->send_action_cookie, 6900 (long long unsigned int) cookie); 6901 drv->send_action_cookie = cookie; 6902 } 6903 } 6904 6905 return res; 6906} 6907 6908 6909static int wpa_driver_nl80211_send_mlme(struct i802_bss *bss, const u8 *data, 6910 size_t data_len, int noack, 6911 unsigned int freq, int no_cck, 6912 int offchanok, 6913 unsigned int wait_time) 6914{ 6915 struct wpa_driver_nl80211_data *drv = bss->drv; 6916 struct ieee80211_mgmt *mgmt; 6917 int encrypt = 1; 6918 u16 fc; 6919 6920 mgmt = (struct ieee80211_mgmt *) data; 6921 fc = le_to_host16(mgmt->frame_control); 6922 wpa_printf(MSG_DEBUG, "nl80211: send_mlme - noack=%d freq=%u no_cck=%d offchanok=%d wait_time=%u fc=0x%x nlmode=%d", 6923 noack, freq, no_cck, offchanok, wait_time, fc, drv->nlmode); 6924 6925 if ((is_sta_interface(drv->nlmode) || 6926 drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) && 6927 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6928 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) { 6929 /* 6930 * The use of last_mgmt_freq is a bit of a hack, 6931 * but it works due to the single-threaded nature 6932 * of wpa_supplicant. 6933 */ 6934 if (freq == 0) { 6935 wpa_printf(MSG_DEBUG, "nl80211: Use last_mgmt_freq=%d", 6936 drv->last_mgmt_freq); 6937 freq = drv->last_mgmt_freq; 6938 } 6939 return nl80211_send_frame_cmd(bss, freq, 0, 6940 data, data_len, NULL, 1, noack, 6941 1); 6942 } 6943 6944 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) { 6945 if (freq == 0) { 6946 wpa_printf(MSG_DEBUG, "nl80211: Use bss->freq=%d", 6947 bss->freq); 6948 freq = bss->freq; 6949 } 6950 return nl80211_send_frame_cmd(bss, freq, 6951 (int) freq == bss->freq ? 0 : 6952 wait_time, 6953 data, data_len, 6954 &drv->send_action_cookie, 6955 no_cck, noack, offchanok); 6956 } 6957 6958 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6959 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) { 6960 /* 6961 * Only one of the authentication frame types is encrypted. 6962 * In order for static WEP encryption to work properly (i.e., 6963 * to not encrypt the frame), we need to tell mac80211 about 6964 * the frames that must not be encrypted. 6965 */ 6966 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg); 6967 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction); 6968 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3) 6969 encrypt = 0; 6970 } 6971 6972 wpa_printf(MSG_DEBUG, "nl80211: send_mlme -> send_frame"); 6973 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 6974 noack, freq, no_cck, offchanok, 6975 wait_time); 6976} 6977 6978 6979static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble, 6980 int slot, int ht_opmode, int ap_isolate, 6981 int *basic_rates) 6982{ 6983 struct wpa_driver_nl80211_data *drv = bss->drv; 6984 struct nl_msg *msg; 6985 6986 msg = nlmsg_alloc(); 6987 if (!msg) 6988 return -ENOMEM; 6989 6990 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS); 6991 6992 if (cts >= 0) 6993 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts); 6994 if (preamble >= 0) 6995 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble); 6996 if (slot >= 0) 6997 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot); 6998 if (ht_opmode >= 0) 6999 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode); 7000 if (ap_isolate >= 0) 7001 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate); 7002 7003 if (basic_rates) { 7004 u8 rates[NL80211_MAX_SUPP_RATES]; 7005 u8 rates_len = 0; 7006 int i; 7007 7008 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; 7009 i++) 7010 rates[rates_len++] = basic_rates[i] / 5; 7011 7012 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates); 7013 } 7014 7015 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 7016 7017 return send_and_recv_msgs(drv, msg, NULL, NULL); 7018 nla_put_failure: 7019 nlmsg_free(msg); 7020 return -ENOBUFS; 7021} 7022 7023 7024static int wpa_driver_nl80211_set_acl(void *priv, 7025 struct hostapd_acl_params *params) 7026{ 7027 struct i802_bss *bss = priv; 7028 struct wpa_driver_nl80211_data *drv = bss->drv; 7029 struct nl_msg *msg; 7030 struct nlattr *acl; 7031 unsigned int i; 7032 int ret = 0; 7033 7034 if (!(drv->capa.max_acl_mac_addrs)) 7035 return -ENOTSUP; 7036 7037 if (params->num_mac_acl > drv->capa.max_acl_mac_addrs) 7038 return -ENOTSUP; 7039 7040 msg = nlmsg_alloc(); 7041 if (!msg) 7042 return -ENOMEM; 7043 7044 wpa_printf(MSG_DEBUG, "nl80211: Set %s ACL (num_mac_acl=%u)", 7045 params->acl_policy ? "Accept" : "Deny", params->num_mac_acl); 7046 7047 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_MAC_ACL); 7048 7049 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7050 7051 NLA_PUT_U32(msg, NL80211_ATTR_ACL_POLICY, params->acl_policy ? 7052 NL80211_ACL_POLICY_DENY_UNLESS_LISTED : 7053 NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED); 7054 7055 acl = nla_nest_start(msg, NL80211_ATTR_MAC_ADDRS); 7056 if (acl == NULL) 7057 goto nla_put_failure; 7058 7059 for (i = 0; i < params->num_mac_acl; i++) 7060 NLA_PUT(msg, i + 1, ETH_ALEN, params->mac_acl[i].addr); 7061 7062 nla_nest_end(msg, acl); 7063 7064 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7065 msg = NULL; 7066 if (ret) { 7067 wpa_printf(MSG_DEBUG, "nl80211: Failed to set MAC ACL: %d (%s)", 7068 ret, strerror(-ret)); 7069 } 7070 7071nla_put_failure: 7072 nlmsg_free(msg); 7073 7074 return ret; 7075} 7076 7077 7078static int wpa_driver_nl80211_set_ap(void *priv, 7079 struct wpa_driver_ap_params *params) 7080{ 7081 struct i802_bss *bss = priv; 7082 struct wpa_driver_nl80211_data *drv = bss->drv; 7083 struct nl_msg *msg; 7084 u8 cmd = NL80211_CMD_NEW_BEACON; 7085 int ret; 7086 int beacon_set; 7087 int ifindex = if_nametoindex(bss->ifname); 7088 int num_suites; 7089 u32 suites[10], suite; 7090 u32 ver; 7091 7092 beacon_set = bss->beacon_set; 7093 7094 msg = nlmsg_alloc(); 7095 if (!msg) 7096 return -ENOMEM; 7097 7098 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)", 7099 beacon_set); 7100 if (beacon_set) 7101 cmd = NL80211_CMD_SET_BEACON; 7102 7103 nl80211_cmd(drv, msg, 0, cmd); 7104 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon head", 7105 params->head, params->head_len); 7106 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head); 7107 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon tail", 7108 params->tail, params->tail_len); 7109 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail); 7110 wpa_printf(MSG_DEBUG, "nl80211: ifindex=%d", ifindex); 7111 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 7112 wpa_printf(MSG_DEBUG, "nl80211: beacon_int=%d", params->beacon_int); 7113 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int); 7114 wpa_printf(MSG_DEBUG, "nl80211: dtim_period=%d", params->dtim_period); 7115 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period); 7116 wpa_hexdump_ascii(MSG_DEBUG, "nl80211: ssid", 7117 params->ssid, params->ssid_len); 7118 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7119 params->ssid); 7120 if (params->proberesp && params->proberesp_len) { 7121 wpa_hexdump(MSG_DEBUG, "nl80211: proberesp (offload)", 7122 params->proberesp, params->proberesp_len); 7123 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len, 7124 params->proberesp); 7125 } 7126 switch (params->hide_ssid) { 7127 case NO_SSID_HIDING: 7128 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID not in use"); 7129 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 7130 NL80211_HIDDEN_SSID_NOT_IN_USE); 7131 break; 7132 case HIDDEN_SSID_ZERO_LEN: 7133 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero len"); 7134 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 7135 NL80211_HIDDEN_SSID_ZERO_LEN); 7136 break; 7137 case HIDDEN_SSID_ZERO_CONTENTS: 7138 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero contents"); 7139 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 7140 NL80211_HIDDEN_SSID_ZERO_CONTENTS); 7141 break; 7142 } 7143 wpa_printf(MSG_DEBUG, "nl80211: privacy=%d", params->privacy); 7144 if (params->privacy) 7145 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 7146 wpa_printf(MSG_DEBUG, "nl80211: auth_algs=0x%x", params->auth_algs); 7147 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) == 7148 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) { 7149 /* Leave out the attribute */ 7150 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED) 7151 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 7152 NL80211_AUTHTYPE_SHARED_KEY); 7153 else 7154 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 7155 NL80211_AUTHTYPE_OPEN_SYSTEM); 7156 7157 wpa_printf(MSG_DEBUG, "nl80211: wpa_version=0x%x", params->wpa_version); 7158 ver = 0; 7159 if (params->wpa_version & WPA_PROTO_WPA) 7160 ver |= NL80211_WPA_VERSION_1; 7161 if (params->wpa_version & WPA_PROTO_RSN) 7162 ver |= NL80211_WPA_VERSION_2; 7163 if (ver) 7164 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 7165 7166 wpa_printf(MSG_DEBUG, "nl80211: key_mgmt_suites=0x%x", 7167 params->key_mgmt_suites); 7168 num_suites = 0; 7169 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X) 7170 suites[num_suites++] = WLAN_AKM_SUITE_8021X; 7171 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK) 7172 suites[num_suites++] = WLAN_AKM_SUITE_PSK; 7173 if (num_suites) { 7174 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES, 7175 num_suites * sizeof(u32), suites); 7176 } 7177 7178 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X && 7179 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)) 7180 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT); 7181 7182 wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x", 7183 params->pairwise_ciphers); 7184 num_suites = wpa_cipher_to_cipher_suites(params->pairwise_ciphers, 7185 suites, ARRAY_SIZE(suites)); 7186 if (num_suites) { 7187 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, 7188 num_suites * sizeof(u32), suites); 7189 } 7190 7191 wpa_printf(MSG_DEBUG, "nl80211: group_cipher=0x%x", 7192 params->group_cipher); 7193 suite = wpa_cipher_to_cipher_suite(params->group_cipher); 7194 if (suite) 7195 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, suite); 7196 7197 if (params->beacon_ies) { 7198 wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies", 7199 params->beacon_ies); 7200 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies), 7201 wpabuf_head(params->beacon_ies)); 7202 } 7203 if (params->proberesp_ies) { 7204 wpa_hexdump_buf(MSG_DEBUG, "nl80211: proberesp_ies", 7205 params->proberesp_ies); 7206 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, 7207 wpabuf_len(params->proberesp_ies), 7208 wpabuf_head(params->proberesp_ies)); 7209 } 7210 if (params->assocresp_ies) { 7211 wpa_hexdump_buf(MSG_DEBUG, "nl80211: assocresp_ies", 7212 params->assocresp_ies); 7213 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP, 7214 wpabuf_len(params->assocresp_ies), 7215 wpabuf_head(params->assocresp_ies)); 7216 } 7217 7218 if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) { 7219 wpa_printf(MSG_DEBUG, "nl80211: ap_max_inactivity=%d", 7220 params->ap_max_inactivity); 7221 NLA_PUT_U16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT, 7222 params->ap_max_inactivity); 7223 } 7224 7225 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7226 if (ret) { 7227 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)", 7228 ret, strerror(-ret)); 7229 } else { 7230 bss->beacon_set = 1; 7231 nl80211_set_bss(bss, params->cts_protect, params->preamble, 7232 params->short_slot_time, params->ht_opmode, 7233 params->isolate, params->basic_rates); 7234 } 7235 return ret; 7236 nla_put_failure: 7237 nlmsg_free(msg); 7238 return -ENOBUFS; 7239} 7240 7241 7242static int nl80211_put_freq_params(struct nl_msg *msg, 7243 struct hostapd_freq_params *freq) 7244{ 7245 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); 7246 if (freq->vht_enabled) { 7247 switch (freq->bandwidth) { 7248 case 20: 7249 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7250 NL80211_CHAN_WIDTH_20); 7251 break; 7252 case 40: 7253 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7254 NL80211_CHAN_WIDTH_40); 7255 break; 7256 case 80: 7257 if (freq->center_freq2) 7258 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7259 NL80211_CHAN_WIDTH_80P80); 7260 else 7261 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7262 NL80211_CHAN_WIDTH_80); 7263 break; 7264 case 160: 7265 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7266 NL80211_CHAN_WIDTH_160); 7267 break; 7268 default: 7269 return -EINVAL; 7270 } 7271 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); 7272 if (freq->center_freq2) 7273 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, 7274 freq->center_freq2); 7275 } else if (freq->ht_enabled) { 7276 switch (freq->sec_channel_offset) { 7277 case -1: 7278 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 7279 NL80211_CHAN_HT40MINUS); 7280 break; 7281 case 1: 7282 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 7283 NL80211_CHAN_HT40PLUS); 7284 break; 7285 default: 7286 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 7287 NL80211_CHAN_HT20); 7288 break; 7289 } 7290 } 7291 return 0; 7292 7293nla_put_failure: 7294 return -ENOBUFS; 7295} 7296 7297 7298static int wpa_driver_nl80211_set_freq(struct i802_bss *bss, 7299 struct hostapd_freq_params *freq) 7300{ 7301 struct wpa_driver_nl80211_data *drv = bss->drv; 7302 struct nl_msg *msg; 7303 int ret; 7304 7305 wpa_printf(MSG_DEBUG, 7306 "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d, bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)", 7307 freq->freq, freq->ht_enabled, freq->vht_enabled, 7308 freq->bandwidth, freq->center_freq1, freq->center_freq2); 7309 msg = nlmsg_alloc(); 7310 if (!msg) 7311 return -1; 7312 7313 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 7314 7315 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7316 if (nl80211_put_freq_params(msg, freq) < 0) 7317 goto nla_put_failure; 7318 7319 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7320 msg = NULL; 7321 if (ret == 0) { 7322 bss->freq = freq->freq; 7323 return 0; 7324 } 7325 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): " 7326 "%d (%s)", freq->freq, ret, strerror(-ret)); 7327nla_put_failure: 7328 nlmsg_free(msg); 7329 return -1; 7330} 7331 7332 7333static u32 sta_flags_nl80211(int flags) 7334{ 7335 u32 f = 0; 7336 7337 if (flags & WPA_STA_AUTHORIZED) 7338 f |= BIT(NL80211_STA_FLAG_AUTHORIZED); 7339 if (flags & WPA_STA_WMM) 7340 f |= BIT(NL80211_STA_FLAG_WME); 7341 if (flags & WPA_STA_SHORT_PREAMBLE) 7342 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); 7343 if (flags & WPA_STA_MFP) 7344 f |= BIT(NL80211_STA_FLAG_MFP); 7345 if (flags & WPA_STA_TDLS_PEER) 7346 f |= BIT(NL80211_STA_FLAG_TDLS_PEER); 7347 7348 return f; 7349} 7350 7351 7352static int wpa_driver_nl80211_sta_add(void *priv, 7353 struct hostapd_sta_add_params *params) 7354{ 7355 struct i802_bss *bss = priv; 7356 struct wpa_driver_nl80211_data *drv = bss->drv; 7357 struct nl_msg *msg; 7358 struct nl80211_sta_flag_update upd; 7359 int ret = -ENOBUFS; 7360 7361 if ((params->flags & WPA_STA_TDLS_PEER) && 7362 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 7363 return -EOPNOTSUPP; 7364 7365 msg = nlmsg_alloc(); 7366 if (!msg) 7367 return -ENOMEM; 7368 7369 wpa_printf(MSG_DEBUG, "nl80211: %s STA " MACSTR, 7370 params->set ? "Set" : "Add", MAC2STR(params->addr)); 7371 nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION : 7372 NL80211_CMD_NEW_STATION); 7373 7374 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 7375 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr); 7376 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len, 7377 params->supp_rates); 7378 wpa_hexdump(MSG_DEBUG, " * supported rates", params->supp_rates, 7379 params->supp_rates_len); 7380 if (!params->set) { 7381 if (params->aid) { 7382 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid); 7383 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid); 7384 } else { 7385 /* 7386 * cfg80211 validates that AID is non-zero, so we have 7387 * to make this a non-zero value for the TDLS case where 7388 * a dummy STA entry is used for now. 7389 */ 7390 wpa_printf(MSG_DEBUG, " * aid=1 (TDLS workaround)"); 7391 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, 1); 7392 } 7393 wpa_printf(MSG_DEBUG, " * listen_interval=%u", 7394 params->listen_interval); 7395 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, 7396 params->listen_interval); 7397 } else if (params->aid && (params->flags & WPA_STA_TDLS_PEER)) { 7398 wpa_printf(MSG_DEBUG, " * peer_aid=%u", params->aid); 7399 NLA_PUT_U16(msg, NL80211_ATTR_PEER_AID, params->aid); 7400 } 7401 if (params->ht_capabilities) { 7402 wpa_hexdump(MSG_DEBUG, " * ht_capabilities", 7403 (u8 *) params->ht_capabilities, 7404 sizeof(*params->ht_capabilities)); 7405 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, 7406 sizeof(*params->ht_capabilities), 7407 params->ht_capabilities); 7408 } 7409 7410 if (params->vht_capabilities) { 7411 wpa_hexdump(MSG_DEBUG, " * vht_capabilities", 7412 (u8 *) params->vht_capabilities, 7413 sizeof(*params->vht_capabilities)); 7414 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, 7415 sizeof(*params->vht_capabilities), 7416 params->vht_capabilities); 7417 } 7418 7419 if (params->vht_opmode_enabled) { 7420 wpa_printf(MSG_DEBUG, " * opmode=%u", params->vht_opmode); 7421 NLA_PUT_U8(msg, NL80211_ATTR_OPMODE_NOTIF, 7422 params->vht_opmode); 7423 } 7424 7425 wpa_printf(MSG_DEBUG, " * capability=0x%x", params->capability); 7426 NLA_PUT_U16(msg, NL80211_ATTR_STA_CAPABILITY, params->capability); 7427 7428 if (params->ext_capab) { 7429 wpa_hexdump(MSG_DEBUG, " * ext_capab", 7430 params->ext_capab, params->ext_capab_len); 7431 NLA_PUT(msg, NL80211_ATTR_STA_EXT_CAPABILITY, 7432 params->ext_capab_len, params->ext_capab); 7433 } 7434 7435 if (params->supp_channels) { 7436 wpa_hexdump(MSG_DEBUG, " * supported channels", 7437 params->supp_channels, params->supp_channels_len); 7438 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_CHANNELS, 7439 params->supp_channels_len, params->supp_channels); 7440 } 7441 7442 if (params->supp_oper_classes) { 7443 wpa_hexdump(MSG_DEBUG, " * supported operating classes", 7444 params->supp_oper_classes, 7445 params->supp_oper_classes_len); 7446 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES, 7447 params->supp_oper_classes_len, 7448 params->supp_oper_classes); 7449 } 7450 7451 os_memset(&upd, 0, sizeof(upd)); 7452 upd.mask = sta_flags_nl80211(params->flags); 7453 upd.set = upd.mask; 7454 wpa_printf(MSG_DEBUG, " * flags set=0x%x mask=0x%x", 7455 upd.set, upd.mask); 7456 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 7457 7458 if (params->flags & WPA_STA_WMM) { 7459 struct nlattr *wme = nla_nest_start(msg, NL80211_ATTR_STA_WME); 7460 7461 if (!wme) 7462 goto nla_put_failure; 7463 7464 wpa_printf(MSG_DEBUG, " * qosinfo=0x%x", params->qosinfo); 7465 NLA_PUT_U8(msg, NL80211_STA_WME_UAPSD_QUEUES, 7466 params->qosinfo & WMM_QOSINFO_STA_AC_MASK); 7467 NLA_PUT_U8(msg, NL80211_STA_WME_MAX_SP, 7468 (params->qosinfo >> WMM_QOSINFO_STA_SP_SHIFT) & 7469 WMM_QOSINFO_STA_SP_MASK); 7470 nla_nest_end(msg, wme); 7471 } 7472 7473 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7474 msg = NULL; 7475 if (ret) 7476 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION " 7477 "result: %d (%s)", params->set ? "SET" : "NEW", ret, 7478 strerror(-ret)); 7479 if (ret == -EEXIST) 7480 ret = 0; 7481 nla_put_failure: 7482 nlmsg_free(msg); 7483 return ret; 7484} 7485 7486 7487static int wpa_driver_nl80211_sta_remove(struct i802_bss *bss, const u8 *addr) 7488{ 7489 struct wpa_driver_nl80211_data *drv = bss->drv; 7490 struct nl_msg *msg; 7491 int ret; 7492 7493 msg = nlmsg_alloc(); 7494 if (!msg) 7495 return -ENOMEM; 7496 7497 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 7498 7499 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 7500 if_nametoindex(bss->ifname)); 7501 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 7502 7503 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7504 wpa_printf(MSG_DEBUG, "nl80211: sta_remove -> DEL_STATION %s " MACSTR 7505 " --> %d (%s)", 7506 bss->ifname, MAC2STR(addr), ret, strerror(-ret)); 7507 if (ret == -ENOENT) 7508 return 0; 7509 return ret; 7510 nla_put_failure: 7511 nlmsg_free(msg); 7512 return -ENOBUFS; 7513} 7514 7515 7516static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, 7517 int ifidx) 7518{ 7519 struct nl_msg *msg; 7520 7521 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx); 7522 7523 /* stop listening for EAPOL on this interface */ 7524 del_ifidx(drv, ifidx); 7525 7526 msg = nlmsg_alloc(); 7527 if (!msg) 7528 goto nla_put_failure; 7529 7530 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 7531 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx); 7532 7533 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 7534 return; 7535 msg = NULL; 7536 nla_put_failure: 7537 nlmsg_free(msg); 7538 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx); 7539} 7540 7541 7542static const char * nl80211_iftype_str(enum nl80211_iftype mode) 7543{ 7544 switch (mode) { 7545 case NL80211_IFTYPE_ADHOC: 7546 return "ADHOC"; 7547 case NL80211_IFTYPE_STATION: 7548 return "STATION"; 7549 case NL80211_IFTYPE_AP: 7550 return "AP"; 7551 case NL80211_IFTYPE_AP_VLAN: 7552 return "AP_VLAN"; 7553 case NL80211_IFTYPE_WDS: 7554 return "WDS"; 7555 case NL80211_IFTYPE_MONITOR: 7556 return "MONITOR"; 7557 case NL80211_IFTYPE_MESH_POINT: 7558 return "MESH_POINT"; 7559 case NL80211_IFTYPE_P2P_CLIENT: 7560 return "P2P_CLIENT"; 7561 case NL80211_IFTYPE_P2P_GO: 7562 return "P2P_GO"; 7563 case NL80211_IFTYPE_P2P_DEVICE: 7564 return "P2P_DEVICE"; 7565 default: 7566 return "unknown"; 7567 } 7568} 7569 7570 7571static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv, 7572 const char *ifname, 7573 enum nl80211_iftype iftype, 7574 const u8 *addr, int wds, 7575 int (*handler)(struct nl_msg *, void *), 7576 void *arg) 7577{ 7578 struct nl_msg *msg; 7579 int ifidx; 7580 int ret = -ENOBUFS; 7581 7582 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)", 7583 iftype, nl80211_iftype_str(iftype)); 7584 7585 msg = nlmsg_alloc(); 7586 if (!msg) 7587 return -1; 7588 7589 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE); 7590 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 7591 goto nla_put_failure; 7592 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname); 7593 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype); 7594 7595 if (iftype == NL80211_IFTYPE_MONITOR) { 7596 struct nlattr *flags; 7597 7598 flags = nla_nest_start(msg, NL80211_ATTR_MNTR_FLAGS); 7599 if (!flags) 7600 goto nla_put_failure; 7601 7602 NLA_PUT_FLAG(msg, NL80211_MNTR_FLAG_COOK_FRAMES); 7603 7604 nla_nest_end(msg, flags); 7605 } else if (wds) { 7606 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds); 7607 } 7608 7609 ret = send_and_recv_msgs(drv, msg, handler, arg); 7610 msg = NULL; 7611 if (ret) { 7612 nla_put_failure: 7613 nlmsg_free(msg); 7614 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)", 7615 ifname, ret, strerror(-ret)); 7616 return ret; 7617 } 7618 7619 if (iftype == NL80211_IFTYPE_P2P_DEVICE) 7620 return 0; 7621 7622 ifidx = if_nametoindex(ifname); 7623 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d", 7624 ifname, ifidx); 7625 7626 if (ifidx <= 0) 7627 return -1; 7628 7629 /* start listening for EAPOL on this interface */ 7630 add_ifidx(drv, ifidx); 7631 7632 if (addr && iftype != NL80211_IFTYPE_MONITOR && 7633 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) { 7634 nl80211_remove_iface(drv, ifidx); 7635 return -1; 7636 } 7637 7638 return ifidx; 7639} 7640 7641 7642static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv, 7643 const char *ifname, enum nl80211_iftype iftype, 7644 const u8 *addr, int wds, 7645 int (*handler)(struct nl_msg *, void *), 7646 void *arg, int use_existing) 7647{ 7648 int ret; 7649 7650 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds, handler, 7651 arg); 7652 7653 /* if error occurred and interface exists already */ 7654 if (ret == -ENFILE && if_nametoindex(ifname)) { 7655 if (use_existing) { 7656 wpa_printf(MSG_DEBUG, "nl80211: Continue using existing interface %s", 7657 ifname); 7658 return -ENFILE; 7659 } 7660 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname); 7661 7662 /* Try to remove the interface that was already there. */ 7663 nl80211_remove_iface(drv, if_nametoindex(ifname)); 7664 7665 /* Try to create the interface again */ 7666 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, 7667 wds, handler, arg); 7668 } 7669 7670 if (ret >= 0 && is_p2p_net_interface(iftype)) 7671 nl80211_disable_11b_rates(drv, ret, 1); 7672 7673 return ret; 7674} 7675 7676 7677static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok) 7678{ 7679 struct ieee80211_hdr *hdr; 7680 u16 fc; 7681 union wpa_event_data event; 7682 7683 hdr = (struct ieee80211_hdr *) buf; 7684 fc = le_to_host16(hdr->frame_control); 7685 7686 os_memset(&event, 0, sizeof(event)); 7687 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 7688 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 7689 event.tx_status.dst = hdr->addr1; 7690 event.tx_status.data = buf; 7691 event.tx_status.data_len = len; 7692 event.tx_status.ack = ok; 7693 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event); 7694} 7695 7696 7697static void from_unknown_sta(struct wpa_driver_nl80211_data *drv, 7698 u8 *buf, size_t len) 7699{ 7700 struct ieee80211_hdr *hdr = (void *)buf; 7701 u16 fc; 7702 union wpa_event_data event; 7703 7704 if (len < sizeof(*hdr)) 7705 return; 7706 7707 fc = le_to_host16(hdr->frame_control); 7708 7709 os_memset(&event, 0, sizeof(event)); 7710 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len); 7711 event.rx_from_unknown.addr = hdr->addr2; 7712 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) == 7713 (WLAN_FC_FROMDS | WLAN_FC_TODS); 7714 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 7715} 7716 7717 7718static void handle_frame(struct wpa_driver_nl80211_data *drv, 7719 u8 *buf, size_t len, int datarate, int ssi_signal) 7720{ 7721 struct ieee80211_hdr *hdr; 7722 u16 fc; 7723 union wpa_event_data event; 7724 7725 hdr = (struct ieee80211_hdr *) buf; 7726 fc = le_to_host16(hdr->frame_control); 7727 7728 switch (WLAN_FC_GET_TYPE(fc)) { 7729 case WLAN_FC_TYPE_MGMT: 7730 os_memset(&event, 0, sizeof(event)); 7731 event.rx_mgmt.frame = buf; 7732 event.rx_mgmt.frame_len = len; 7733 event.rx_mgmt.datarate = datarate; 7734 event.rx_mgmt.ssi_signal = ssi_signal; 7735 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 7736 break; 7737 case WLAN_FC_TYPE_CTRL: 7738 /* can only get here with PS-Poll frames */ 7739 wpa_printf(MSG_DEBUG, "CTRL"); 7740 from_unknown_sta(drv, buf, len); 7741 break; 7742 case WLAN_FC_TYPE_DATA: 7743 from_unknown_sta(drv, buf, len); 7744 break; 7745 } 7746} 7747 7748 7749static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx) 7750{ 7751 struct wpa_driver_nl80211_data *drv = eloop_ctx; 7752 int len; 7753 unsigned char buf[3000]; 7754 struct ieee80211_radiotap_iterator iter; 7755 int ret; 7756 int datarate = 0, ssi_signal = 0; 7757 int injected = 0, failed = 0, rxflags = 0; 7758 7759 len = recv(sock, buf, sizeof(buf), 0); 7760 if (len < 0) { 7761 wpa_printf(MSG_ERROR, "nl80211: Monitor socket recv failed: %s", 7762 strerror(errno)); 7763 return; 7764 } 7765 7766 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) { 7767 wpa_printf(MSG_INFO, "nl80211: received invalid radiotap frame"); 7768 return; 7769 } 7770 7771 while (1) { 7772 ret = ieee80211_radiotap_iterator_next(&iter); 7773 if (ret == -ENOENT) 7774 break; 7775 if (ret) { 7776 wpa_printf(MSG_INFO, "nl80211: received invalid radiotap frame (%d)", 7777 ret); 7778 return; 7779 } 7780 switch (iter.this_arg_index) { 7781 case IEEE80211_RADIOTAP_FLAGS: 7782 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS) 7783 len -= 4; 7784 break; 7785 case IEEE80211_RADIOTAP_RX_FLAGS: 7786 rxflags = 1; 7787 break; 7788 case IEEE80211_RADIOTAP_TX_FLAGS: 7789 injected = 1; 7790 failed = le_to_host16((*(uint16_t *) iter.this_arg)) & 7791 IEEE80211_RADIOTAP_F_TX_FAIL; 7792 break; 7793 case IEEE80211_RADIOTAP_DATA_RETRIES: 7794 break; 7795 case IEEE80211_RADIOTAP_CHANNEL: 7796 /* TODO: convert from freq/flags to channel number */ 7797 break; 7798 case IEEE80211_RADIOTAP_RATE: 7799 datarate = *iter.this_arg * 5; 7800 break; 7801 case IEEE80211_RADIOTAP_DBM_ANTSIGNAL: 7802 ssi_signal = (s8) *iter.this_arg; 7803 break; 7804 } 7805 } 7806 7807 if (rxflags && injected) 7808 return; 7809 7810 if (!injected) 7811 handle_frame(drv, buf + iter.max_length, 7812 len - iter.max_length, datarate, ssi_signal); 7813 else 7814 handle_tx_callback(drv->ctx, buf + iter.max_length, 7815 len - iter.max_length, !failed); 7816} 7817 7818 7819/* 7820 * we post-process the filter code later and rewrite 7821 * this to the offset to the last instruction 7822 */ 7823#define PASS 0xFF 7824#define FAIL 0xFE 7825 7826static struct sock_filter msock_filter_insns[] = { 7827 /* 7828 * do a little-endian load of the radiotap length field 7829 */ 7830 /* load lower byte into A */ 7831 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2), 7832 /* put it into X (== index register) */ 7833 BPF_STMT(BPF_MISC| BPF_TAX, 0), 7834 /* load upper byte into A */ 7835 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3), 7836 /* left-shift it by 8 */ 7837 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8), 7838 /* or with X */ 7839 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0), 7840 /* put result into X */ 7841 BPF_STMT(BPF_MISC| BPF_TAX, 0), 7842 7843 /* 7844 * Allow management frames through, this also gives us those 7845 * management frames that we sent ourselves with status 7846 */ 7847 /* load the lower byte of the IEEE 802.11 frame control field */ 7848 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7849 /* mask off frame type and version */ 7850 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF), 7851 /* accept frame if it's both 0, fall through otherwise */ 7852 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0), 7853 7854 /* 7855 * TODO: add a bit to radiotap RX flags that indicates 7856 * that the sending station is not associated, then 7857 * add a filter here that filters on our DA and that flag 7858 * to allow us to deauth frames to that bad station. 7859 * 7860 * For now allow all To DS data frames through. 7861 */ 7862 /* load the IEEE 802.11 frame control field */ 7863 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0), 7864 /* mask off frame type, version and DS status */ 7865 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03), 7866 /* accept frame if version 0, type 2 and To DS, fall through otherwise 7867 */ 7868 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0), 7869 7870#if 0 7871 /* 7872 * drop non-data frames 7873 */ 7874 /* load the lower byte of the frame control field */ 7875 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7876 /* mask off QoS bit */ 7877 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c), 7878 /* drop non-data frames */ 7879 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL), 7880#endif 7881 /* load the upper byte of the frame control field */ 7882 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1), 7883 /* mask off toDS/fromDS */ 7884 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03), 7885 /* accept WDS frames */ 7886 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0), 7887 7888 /* 7889 * add header length to index 7890 */ 7891 /* load the lower byte of the frame control field */ 7892 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7893 /* mask off QoS bit */ 7894 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80), 7895 /* right shift it by 6 to give 0 or 2 */ 7896 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6), 7897 /* add data frame header length */ 7898 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24), 7899 /* add index, was start of 802.11 header */ 7900 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), 7901 /* move to index, now start of LL header */ 7902 BPF_STMT(BPF_MISC | BPF_TAX, 0), 7903 7904 /* 7905 * Accept empty data frames, we use those for 7906 * polling activity. 7907 */ 7908 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0), 7909 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0), 7910 7911 /* 7912 * Accept EAPOL frames 7913 */ 7914 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0), 7915 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL), 7916 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4), 7917 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL), 7918 7919 /* keep these last two statements or change the code below */ 7920 /* return 0 == "DROP" */ 7921 BPF_STMT(BPF_RET | BPF_K, 0), 7922 /* return ~0 == "keep all" */ 7923 BPF_STMT(BPF_RET | BPF_K, ~0), 7924}; 7925 7926static struct sock_fprog msock_filter = { 7927 .len = ARRAY_SIZE(msock_filter_insns), 7928 .filter = msock_filter_insns, 7929}; 7930 7931 7932static int add_monitor_filter(int s) 7933{ 7934 int idx; 7935 7936 /* rewrite all PASS/FAIL jump offsets */ 7937 for (idx = 0; idx < msock_filter.len; idx++) { 7938 struct sock_filter *insn = &msock_filter_insns[idx]; 7939 7940 if (BPF_CLASS(insn->code) == BPF_JMP) { 7941 if (insn->code == (BPF_JMP|BPF_JA)) { 7942 if (insn->k == PASS) 7943 insn->k = msock_filter.len - idx - 2; 7944 else if (insn->k == FAIL) 7945 insn->k = msock_filter.len - idx - 3; 7946 } 7947 7948 if (insn->jt == PASS) 7949 insn->jt = msock_filter.len - idx - 2; 7950 else if (insn->jt == FAIL) 7951 insn->jt = msock_filter.len - idx - 3; 7952 7953 if (insn->jf == PASS) 7954 insn->jf = msock_filter.len - idx - 2; 7955 else if (insn->jf == FAIL) 7956 insn->jf = msock_filter.len - idx - 3; 7957 } 7958 } 7959 7960 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER, 7961 &msock_filter, sizeof(msock_filter))) { 7962 wpa_printf(MSG_ERROR, "nl80211: setsockopt(SO_ATTACH_FILTER) failed: %s", 7963 strerror(errno)); 7964 return -1; 7965 } 7966 7967 return 0; 7968} 7969 7970 7971static void nl80211_remove_monitor_interface( 7972 struct wpa_driver_nl80211_data *drv) 7973{ 7974 if (drv->monitor_refcount > 0) 7975 drv->monitor_refcount--; 7976 wpa_printf(MSG_DEBUG, "nl80211: Remove monitor interface: refcount=%d", 7977 drv->monitor_refcount); 7978 if (drv->monitor_refcount > 0) 7979 return; 7980 7981 if (drv->monitor_ifidx >= 0) { 7982 nl80211_remove_iface(drv, drv->monitor_ifidx); 7983 drv->monitor_ifidx = -1; 7984 } 7985 if (drv->monitor_sock >= 0) { 7986 eloop_unregister_read_sock(drv->monitor_sock); 7987 close(drv->monitor_sock); 7988 drv->monitor_sock = -1; 7989 } 7990} 7991 7992 7993static int 7994nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv) 7995{ 7996 char buf[IFNAMSIZ]; 7997 struct sockaddr_ll ll; 7998 int optval; 7999 socklen_t optlen; 8000 8001 if (drv->monitor_ifidx >= 0) { 8002 drv->monitor_refcount++; 8003 wpa_printf(MSG_DEBUG, "nl80211: Re-use existing monitor interface: refcount=%d", 8004 drv->monitor_refcount); 8005 return 0; 8006 } 8007 8008 if (os_strncmp(drv->first_bss->ifname, "p2p-", 4) == 0) { 8009 /* 8010 * P2P interface name is of the format p2p-%s-%d. For monitor 8011 * interface name corresponding to P2P GO, replace "p2p-" with 8012 * "mon-" to retain the same interface name length and to 8013 * indicate that it is a monitor interface. 8014 */ 8015 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss->ifname + 4); 8016 } else { 8017 /* Non-P2P interface with AP functionality. */ 8018 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss->ifname); 8019 } 8020 8021 buf[IFNAMSIZ - 1] = '\0'; 8022 8023 drv->monitor_ifidx = 8024 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL, 8025 0, NULL, NULL, 0); 8026 8027 if (drv->monitor_ifidx == -EOPNOTSUPP) { 8028 /* 8029 * This is backward compatibility for a few versions of 8030 * the kernel only that didn't advertise the right 8031 * attributes for the only driver that then supported 8032 * AP mode w/o monitor -- ath6kl. 8033 */ 8034 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support " 8035 "monitor interface type - try to run without it"); 8036 drv->device_ap_sme = 1; 8037 } 8038 8039 if (drv->monitor_ifidx < 0) 8040 return -1; 8041 8042 if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1)) 8043 goto error; 8044 8045 memset(&ll, 0, sizeof(ll)); 8046 ll.sll_family = AF_PACKET; 8047 ll.sll_ifindex = drv->monitor_ifidx; 8048 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)); 8049 if (drv->monitor_sock < 0) { 8050 wpa_printf(MSG_ERROR, "nl80211: socket[PF_PACKET,SOCK_RAW] failed: %s", 8051 strerror(errno)); 8052 goto error; 8053 } 8054 8055 if (add_monitor_filter(drv->monitor_sock)) { 8056 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor " 8057 "interface; do filtering in user space"); 8058 /* This works, but will cost in performance. */ 8059 } 8060 8061 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) { 8062 wpa_printf(MSG_ERROR, "nl80211: monitor socket bind failed: %s", 8063 strerror(errno)); 8064 goto error; 8065 } 8066 8067 optlen = sizeof(optval); 8068 optval = 20; 8069 if (setsockopt 8070 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) { 8071 wpa_printf(MSG_ERROR, "nl80211: Failed to set socket priority: %s", 8072 strerror(errno)); 8073 goto error; 8074 } 8075 8076 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read, 8077 drv, NULL)) { 8078 wpa_printf(MSG_INFO, "nl80211: Could not register monitor read socket"); 8079 goto error; 8080 } 8081 8082 drv->monitor_refcount++; 8083 return 0; 8084 error: 8085 nl80211_remove_monitor_interface(drv); 8086 return -1; 8087} 8088 8089 8090static int nl80211_setup_ap(struct i802_bss *bss) 8091{ 8092 struct wpa_driver_nl80211_data *drv = bss->drv; 8093 8094 wpa_printf(MSG_DEBUG, "nl80211: Setup AP(%s) - device_ap_sme=%d use_monitor=%d", 8095 bss->ifname, drv->device_ap_sme, drv->use_monitor); 8096 8097 /* 8098 * Disable Probe Request reporting unless we need it in this way for 8099 * devices that include the AP SME, in the other case (unless using 8100 * monitor iface) we'll get it through the nl_mgmt socket instead. 8101 */ 8102 if (!drv->device_ap_sme) 8103 wpa_driver_nl80211_probe_req_report(bss, 0); 8104 8105 if (!drv->device_ap_sme && !drv->use_monitor) 8106 if (nl80211_mgmt_subscribe_ap(bss)) 8107 return -1; 8108 8109 if (drv->device_ap_sme && !drv->use_monitor) 8110 if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) 8111 return -1; 8112 8113 if (!drv->device_ap_sme && drv->use_monitor && 8114 nl80211_create_monitor_interface(drv) && 8115 !drv->device_ap_sme) 8116 return -1; 8117 8118 if (drv->device_ap_sme && 8119 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) { 8120 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable " 8121 "Probe Request frame reporting in AP mode"); 8122 /* Try to survive without this */ 8123 } 8124 8125 return 0; 8126} 8127 8128 8129static void nl80211_teardown_ap(struct i802_bss *bss) 8130{ 8131 struct wpa_driver_nl80211_data *drv = bss->drv; 8132 8133 wpa_printf(MSG_DEBUG, "nl80211: Teardown AP(%s) - device_ap_sme=%d use_monitor=%d", 8134 bss->ifname, drv->device_ap_sme, drv->use_monitor); 8135 if (drv->device_ap_sme) { 8136 wpa_driver_nl80211_probe_req_report(bss, 0); 8137 if (!drv->use_monitor) 8138 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)"); 8139 } else if (drv->use_monitor) 8140 nl80211_remove_monitor_interface(drv); 8141 else 8142 nl80211_mgmt_unsubscribe(bss, "AP teardown"); 8143 8144 bss->beacon_set = 0; 8145} 8146 8147 8148static int nl80211_send_eapol_data(struct i802_bss *bss, 8149 const u8 *addr, const u8 *data, 8150 size_t data_len) 8151{ 8152 struct sockaddr_ll ll; 8153 int ret; 8154 8155 if (bss->drv->eapol_tx_sock < 0) { 8156 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL"); 8157 return -1; 8158 } 8159 8160 os_memset(&ll, 0, sizeof(ll)); 8161 ll.sll_family = AF_PACKET; 8162 ll.sll_ifindex = bss->ifindex; 8163 ll.sll_protocol = htons(ETH_P_PAE); 8164 ll.sll_halen = ETH_ALEN; 8165 os_memcpy(ll.sll_addr, addr, ETH_ALEN); 8166 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0, 8167 (struct sockaddr *) &ll, sizeof(ll)); 8168 if (ret < 0) 8169 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s", 8170 strerror(errno)); 8171 8172 return ret; 8173} 8174 8175 8176static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 8177 8178static int wpa_driver_nl80211_hapd_send_eapol( 8179 void *priv, const u8 *addr, const u8 *data, 8180 size_t data_len, int encrypt, const u8 *own_addr, u32 flags) 8181{ 8182 struct i802_bss *bss = priv; 8183 struct wpa_driver_nl80211_data *drv = bss->drv; 8184 struct ieee80211_hdr *hdr; 8185 size_t len; 8186 u8 *pos; 8187 int res; 8188 int qos = flags & WPA_STA_WMM; 8189 8190 if (drv->device_ap_sme || !drv->use_monitor) 8191 return nl80211_send_eapol_data(bss, addr, data, data_len); 8192 8193 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 + 8194 data_len; 8195 hdr = os_zalloc(len); 8196 if (hdr == NULL) { 8197 wpa_printf(MSG_INFO, "nl80211: Failed to allocate EAPOL buffer(len=%lu)", 8198 (unsigned long) len); 8199 return -1; 8200 } 8201 8202 hdr->frame_control = 8203 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA); 8204 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS); 8205 if (encrypt) 8206 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP); 8207 if (qos) { 8208 hdr->frame_control |= 8209 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4); 8210 } 8211 8212 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN); 8213 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 8214 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 8215 pos = (u8 *) (hdr + 1); 8216 8217 if (qos) { 8218 /* Set highest priority in QoS header */ 8219 pos[0] = 7; 8220 pos[1] = 0; 8221 pos += 2; 8222 } 8223 8224 memcpy(pos, rfc1042_header, sizeof(rfc1042_header)); 8225 pos += sizeof(rfc1042_header); 8226 WPA_PUT_BE16(pos, ETH_P_PAE); 8227 pos += 2; 8228 memcpy(pos, data, data_len); 8229 8230 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0, 8231 0, 0, 0, 0); 8232 if (res < 0) { 8233 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - " 8234 "failed: %d (%s)", 8235 (unsigned long) len, errno, strerror(errno)); 8236 } 8237 os_free(hdr); 8238 8239 return res; 8240} 8241 8242 8243static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr, 8244 int total_flags, 8245 int flags_or, int flags_and) 8246{ 8247 struct i802_bss *bss = priv; 8248 struct wpa_driver_nl80211_data *drv = bss->drv; 8249 struct nl_msg *msg; 8250 struct nlattr *flags; 8251 struct nl80211_sta_flag_update upd; 8252 8253 msg = nlmsg_alloc(); 8254 if (!msg) 8255 return -ENOMEM; 8256 8257 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8258 8259 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8260 if_nametoindex(bss->ifname)); 8261 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8262 8263 /* 8264 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This 8265 * can be removed eventually. 8266 */ 8267 flags = nla_nest_start(msg, NL80211_ATTR_STA_FLAGS); 8268 if (!flags) 8269 goto nla_put_failure; 8270 if (total_flags & WPA_STA_AUTHORIZED) 8271 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_AUTHORIZED); 8272 8273 if (total_flags & WPA_STA_WMM) 8274 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_WME); 8275 8276 if (total_flags & WPA_STA_SHORT_PREAMBLE) 8277 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_SHORT_PREAMBLE); 8278 8279 if (total_flags & WPA_STA_MFP) 8280 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_MFP); 8281 8282 if (total_flags & WPA_STA_TDLS_PEER) 8283 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_TDLS_PEER); 8284 8285 nla_nest_end(msg, flags); 8286 8287 os_memset(&upd, 0, sizeof(upd)); 8288 upd.mask = sta_flags_nl80211(flags_or | ~flags_and); 8289 upd.set = sta_flags_nl80211(flags_or); 8290 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 8291 8292 return send_and_recv_msgs(drv, msg, NULL, NULL); 8293 nla_put_failure: 8294 nlmsg_free(msg); 8295 return -ENOBUFS; 8296} 8297 8298 8299static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv, 8300 struct wpa_driver_associate_params *params) 8301{ 8302 enum nl80211_iftype nlmode, old_mode; 8303 struct hostapd_freq_params freq = { 8304 .freq = params->freq, 8305 }; 8306 8307 if (params->p2p) { 8308 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P " 8309 "group (GO)"); 8310 nlmode = NL80211_IFTYPE_P2P_GO; 8311 } else 8312 nlmode = NL80211_IFTYPE_AP; 8313 8314 old_mode = drv->nlmode; 8315 if (wpa_driver_nl80211_set_mode(drv->first_bss, nlmode)) { 8316 nl80211_remove_monitor_interface(drv); 8317 return -1; 8318 } 8319 8320 if (wpa_driver_nl80211_set_freq(drv->first_bss, &freq)) { 8321 if (old_mode != nlmode) 8322 wpa_driver_nl80211_set_mode(drv->first_bss, old_mode); 8323 nl80211_remove_monitor_interface(drv); 8324 return -1; 8325 } 8326 8327 return 0; 8328} 8329 8330 8331static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv) 8332{ 8333 struct nl_msg *msg; 8334 int ret = -1; 8335 8336 msg = nlmsg_alloc(); 8337 if (!msg) 8338 return -1; 8339 8340 nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS); 8341 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8342 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8343 msg = NULL; 8344 if (ret) { 8345 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d " 8346 "(%s)", ret, strerror(-ret)); 8347 goto nla_put_failure; 8348 } 8349 8350 ret = 0; 8351 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully"); 8352 8353nla_put_failure: 8354 if (wpa_driver_nl80211_set_mode(drv->first_bss, 8355 NL80211_IFTYPE_STATION)) { 8356 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 8357 "station mode"); 8358 } 8359 8360 nlmsg_free(msg); 8361 return ret; 8362} 8363 8364 8365static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv, 8366 struct wpa_driver_associate_params *params) 8367{ 8368 struct nl_msg *msg; 8369 int ret = -1; 8370 int count = 0; 8371 8372 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex); 8373 8374 if (wpa_driver_nl80211_set_mode(drv->first_bss, 8375 NL80211_IFTYPE_ADHOC)) { 8376 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 8377 "IBSS mode"); 8378 return -1; 8379 } 8380 8381retry: 8382 msg = nlmsg_alloc(); 8383 if (!msg) 8384 return -1; 8385 8386 nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS); 8387 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8388 8389 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid)) 8390 goto nla_put_failure; 8391 8392 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 8393 params->ssid, params->ssid_len); 8394 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 8395 params->ssid); 8396 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 8397 drv->ssid_len = params->ssid_len; 8398 8399 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 8400 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 8401 8402 if (params->beacon_int > 0) { 8403 wpa_printf(MSG_DEBUG, " * beacon_int=%d", params->beacon_int); 8404 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, 8405 params->beacon_int); 8406 } 8407 8408 ret = nl80211_set_conn_keys(params, msg); 8409 if (ret) 8410 goto nla_put_failure; 8411 8412 if (params->bssid && params->fixed_bssid) { 8413 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR, 8414 MAC2STR(params->bssid)); 8415 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 8416 } 8417 8418 if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X || 8419 params->key_mgmt_suite == WPA_KEY_MGMT_PSK || 8420 params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 || 8421 params->key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256) { 8422 wpa_printf(MSG_DEBUG, " * control port"); 8423 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 8424 } 8425 8426 if (params->wpa_ie) { 8427 wpa_hexdump(MSG_DEBUG, 8428 " * Extra IEs for Beacon/Probe Response frames", 8429 params->wpa_ie, params->wpa_ie_len); 8430 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 8431 params->wpa_ie); 8432 } 8433 8434 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8435 msg = NULL; 8436 if (ret) { 8437 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)", 8438 ret, strerror(-ret)); 8439 count++; 8440 if (ret == -EALREADY && count == 1) { 8441 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after " 8442 "forced leave"); 8443 nl80211_leave_ibss(drv); 8444 nlmsg_free(msg); 8445 goto retry; 8446 } 8447 8448 goto nla_put_failure; 8449 } 8450 ret = 0; 8451 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully"); 8452 8453nla_put_failure: 8454 nlmsg_free(msg); 8455 return ret; 8456} 8457 8458 8459static int nl80211_connect_common(struct wpa_driver_nl80211_data *drv, 8460 struct wpa_driver_associate_params *params, 8461 struct nl_msg *msg) 8462{ 8463 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8464 8465 if (params->bssid) { 8466 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 8467 MAC2STR(params->bssid)); 8468 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 8469 } 8470 8471 if (params->bssid_hint) { 8472 wpa_printf(MSG_DEBUG, " * bssid_hint=" MACSTR, 8473 MAC2STR(params->bssid_hint)); 8474 NLA_PUT(msg, NL80211_ATTR_MAC_HINT, ETH_ALEN, 8475 params->bssid_hint); 8476 } 8477 8478 if (params->freq) { 8479 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 8480 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 8481 drv->assoc_freq = params->freq; 8482 } else 8483 drv->assoc_freq = 0; 8484 8485 if (params->freq_hint) { 8486 wpa_printf(MSG_DEBUG, " * freq_hint=%d", params->freq_hint); 8487 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ_HINT, 8488 params->freq_hint); 8489 } 8490 8491 if (params->bg_scan_period >= 0) { 8492 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 8493 params->bg_scan_period); 8494 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 8495 params->bg_scan_period); 8496 } 8497 8498 if (params->ssid) { 8499 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 8500 params->ssid, params->ssid_len); 8501 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 8502 params->ssid); 8503 if (params->ssid_len > sizeof(drv->ssid)) 8504 goto nla_put_failure; 8505 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 8506 drv->ssid_len = params->ssid_len; 8507 } 8508 8509 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 8510 if (params->wpa_ie) 8511 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 8512 params->wpa_ie); 8513 8514 if (params->wpa_proto) { 8515 enum nl80211_wpa_versions ver = 0; 8516 8517 if (params->wpa_proto & WPA_PROTO_WPA) 8518 ver |= NL80211_WPA_VERSION_1; 8519 if (params->wpa_proto & WPA_PROTO_RSN) 8520 ver |= NL80211_WPA_VERSION_2; 8521 8522 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver); 8523 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 8524 } 8525 8526 if (params->pairwise_suite != WPA_CIPHER_NONE) { 8527 u32 cipher = wpa_cipher_to_cipher_suite(params->pairwise_suite); 8528 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher); 8529 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); 8530 } 8531 8532 if (params->group_suite == WPA_CIPHER_GTK_NOT_USED && 8533 !(drv->capa.enc & WPA_DRIVER_CAPA_ENC_GTK_NOT_USED)) { 8534 /* 8535 * This is likely to work even though many drivers do not 8536 * advertise support for operations without GTK. 8537 */ 8538 wpa_printf(MSG_DEBUG, " * skip group cipher configuration for GTK_NOT_USED due to missing driver support advertisement"); 8539 } else if (params->group_suite != WPA_CIPHER_NONE) { 8540 u32 cipher = wpa_cipher_to_cipher_suite(params->group_suite); 8541 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher); 8542 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); 8543 } 8544 8545 if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X || 8546 params->key_mgmt_suite == WPA_KEY_MGMT_PSK || 8547 params->key_mgmt_suite == WPA_KEY_MGMT_FT_IEEE8021X || 8548 params->key_mgmt_suite == WPA_KEY_MGMT_FT_PSK || 8549 params->key_mgmt_suite == WPA_KEY_MGMT_CCKM) { 8550 int mgmt = WLAN_AKM_SUITE_PSK; 8551 8552 switch (params->key_mgmt_suite) { 8553 case WPA_KEY_MGMT_CCKM: 8554 mgmt = WLAN_AKM_SUITE_CCKM; 8555 break; 8556 case WPA_KEY_MGMT_IEEE8021X: 8557 mgmt = WLAN_AKM_SUITE_8021X; 8558 break; 8559 case WPA_KEY_MGMT_FT_IEEE8021X: 8560 mgmt = WLAN_AKM_SUITE_FT_8021X; 8561 break; 8562 case WPA_KEY_MGMT_FT_PSK: 8563 mgmt = WLAN_AKM_SUITE_FT_PSK; 8564 break; 8565 case WPA_KEY_MGMT_PSK: 8566 default: 8567 mgmt = WLAN_AKM_SUITE_PSK; 8568 break; 8569 } 8570 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt); 8571 } 8572 8573 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 8574 8575 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) 8576 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); 8577 8578 if (params->disable_ht) 8579 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); 8580 8581 if (params->htcaps && params->htcaps_mask) { 8582 int sz = sizeof(struct ieee80211_ht_capabilities); 8583 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); 8584 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 8585 params->htcaps_mask); 8586 } 8587 8588#ifdef CONFIG_VHT_OVERRIDES 8589 if (params->disable_vht) { 8590 wpa_printf(MSG_DEBUG, " * VHT disabled"); 8591 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT); 8592 } 8593 8594 if (params->vhtcaps && params->vhtcaps_mask) { 8595 int sz = sizeof(struct ieee80211_vht_capabilities); 8596 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps); 8597 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 8598 params->vhtcaps_mask); 8599 } 8600#endif /* CONFIG_VHT_OVERRIDES */ 8601 8602 if (params->p2p) 8603 wpa_printf(MSG_DEBUG, " * P2P group"); 8604 8605 return 0; 8606nla_put_failure: 8607 return -1; 8608} 8609 8610 8611static int wpa_driver_nl80211_try_connect( 8612 struct wpa_driver_nl80211_data *drv, 8613 struct wpa_driver_associate_params *params) 8614{ 8615 struct nl_msg *msg; 8616 enum nl80211_auth_type type; 8617 int ret; 8618 int algs; 8619 8620 msg = nlmsg_alloc(); 8621 if (!msg) 8622 return -1; 8623 8624 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex); 8625 nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT); 8626 8627 ret = nl80211_connect_common(drv, params, msg); 8628 if (ret) 8629 goto nla_put_failure; 8630 8631 algs = 0; 8632 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 8633 algs++; 8634 if (params->auth_alg & WPA_AUTH_ALG_SHARED) 8635 algs++; 8636 if (params->auth_alg & WPA_AUTH_ALG_LEAP) 8637 algs++; 8638 if (algs > 1) { 8639 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic " 8640 "selection"); 8641 goto skip_auth_type; 8642 } 8643 8644 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 8645 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 8646 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 8647 type = NL80211_AUTHTYPE_SHARED_KEY; 8648 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 8649 type = NL80211_AUTHTYPE_NETWORK_EAP; 8650 else if (params->auth_alg & WPA_AUTH_ALG_FT) 8651 type = NL80211_AUTHTYPE_FT; 8652 else 8653 goto nla_put_failure; 8654 8655 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 8656 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 8657 8658skip_auth_type: 8659 ret = nl80211_set_conn_keys(params, msg); 8660 if (ret) 8661 goto nla_put_failure; 8662 8663 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8664 msg = NULL; 8665 if (ret) { 8666 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d " 8667 "(%s)", ret, strerror(-ret)); 8668 goto nla_put_failure; 8669 } 8670 ret = 0; 8671 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully"); 8672 8673nla_put_failure: 8674 nlmsg_free(msg); 8675 return ret; 8676 8677} 8678 8679 8680static int wpa_driver_nl80211_connect( 8681 struct wpa_driver_nl80211_data *drv, 8682 struct wpa_driver_associate_params *params) 8683{ 8684 int ret = wpa_driver_nl80211_try_connect(drv, params); 8685 if (ret == -EALREADY) { 8686 /* 8687 * cfg80211 does not currently accept new connections if 8688 * we are already connected. As a workaround, force 8689 * disconnection and try again. 8690 */ 8691 wpa_printf(MSG_DEBUG, "nl80211: Explicitly " 8692 "disconnecting before reassociation " 8693 "attempt"); 8694 if (wpa_driver_nl80211_disconnect( 8695 drv, WLAN_REASON_PREV_AUTH_NOT_VALID)) 8696 return -1; 8697 ret = wpa_driver_nl80211_try_connect(drv, params); 8698 } 8699 return ret; 8700} 8701 8702 8703static int wpa_driver_nl80211_associate( 8704 void *priv, struct wpa_driver_associate_params *params) 8705{ 8706 struct i802_bss *bss = priv; 8707 struct wpa_driver_nl80211_data *drv = bss->drv; 8708 int ret; 8709 struct nl_msg *msg; 8710 8711 if (params->mode == IEEE80211_MODE_AP) 8712 return wpa_driver_nl80211_ap(drv, params); 8713 8714 if (params->mode == IEEE80211_MODE_IBSS) 8715 return wpa_driver_nl80211_ibss(drv, params); 8716 8717 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) { 8718 enum nl80211_iftype nlmode = params->p2p ? 8719 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 8720 8721 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0) 8722 return -1; 8723 return wpa_driver_nl80211_connect(drv, params); 8724 } 8725 8726 nl80211_mark_disconnected(drv); 8727 8728 msg = nlmsg_alloc(); 8729 if (!msg) 8730 return -1; 8731 8732 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)", 8733 drv->ifindex); 8734 nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE); 8735 8736 ret = nl80211_connect_common(drv, params, msg); 8737 if (ret) 8738 goto nla_put_failure; 8739 8740 if (params->prev_bssid) { 8741 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR, 8742 MAC2STR(params->prev_bssid)); 8743 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN, 8744 params->prev_bssid); 8745 } 8746 8747 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8748 msg = NULL; 8749 if (ret) { 8750 wpa_dbg(drv->ctx, MSG_DEBUG, 8751 "nl80211: MLME command failed (assoc): ret=%d (%s)", 8752 ret, strerror(-ret)); 8753 nl80211_dump_scan(drv); 8754 goto nla_put_failure; 8755 } 8756 ret = 0; 8757 wpa_printf(MSG_DEBUG, "nl80211: Association request send " 8758 "successfully"); 8759 8760nla_put_failure: 8761 nlmsg_free(msg); 8762 return ret; 8763} 8764 8765 8766static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv, 8767 int ifindex, enum nl80211_iftype mode) 8768{ 8769 struct nl_msg *msg; 8770 int ret = -ENOBUFS; 8771 8772 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)", 8773 ifindex, mode, nl80211_iftype_str(mode)); 8774 8775 msg = nlmsg_alloc(); 8776 if (!msg) 8777 return -ENOMEM; 8778 8779 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE); 8780 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 8781 goto nla_put_failure; 8782 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode); 8783 8784 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8785 msg = NULL; 8786 if (!ret) 8787 return 0; 8788nla_put_failure: 8789 nlmsg_free(msg); 8790 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:" 8791 " %d (%s)", ifindex, mode, ret, strerror(-ret)); 8792 return ret; 8793} 8794 8795 8796static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 8797 enum nl80211_iftype nlmode) 8798{ 8799 struct wpa_driver_nl80211_data *drv = bss->drv; 8800 int ret = -1; 8801 int i; 8802 int was_ap = is_ap_interface(drv->nlmode); 8803 int res; 8804 8805 res = nl80211_set_mode(drv, drv->ifindex, nlmode); 8806 if (res && nlmode == nl80211_get_ifmode(bss)) 8807 res = 0; 8808 8809 if (res == 0) { 8810 drv->nlmode = nlmode; 8811 ret = 0; 8812 goto done; 8813 } 8814 8815 if (res == -ENODEV) 8816 return -1; 8817 8818 if (nlmode == drv->nlmode) { 8819 wpa_printf(MSG_DEBUG, "nl80211: Interface already in " 8820 "requested mode - ignore error"); 8821 ret = 0; 8822 goto done; /* Already in the requested mode */ 8823 } 8824 8825 /* mac80211 doesn't allow mode changes while the device is up, so 8826 * take the device down, try to set the mode again, and bring the 8827 * device back up. 8828 */ 8829 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting " 8830 "interface down"); 8831 for (i = 0; i < 10; i++) { 8832 res = i802_set_iface_flags(bss, 0); 8833 if (res == -EACCES || res == -ENODEV) 8834 break; 8835 if (res == 0) { 8836 /* Try to set the mode again while the interface is 8837 * down */ 8838 ret = nl80211_set_mode(drv, drv->ifindex, nlmode); 8839 if (ret == -EACCES) 8840 break; 8841 res = i802_set_iface_flags(bss, 1); 8842 if (res && !ret) 8843 ret = -1; 8844 else if (ret != -EBUSY) 8845 break; 8846 } else 8847 wpa_printf(MSG_DEBUG, "nl80211: Failed to set " 8848 "interface down"); 8849 os_sleep(0, 100000); 8850 } 8851 8852 if (!ret) { 8853 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while " 8854 "interface is down"); 8855 drv->nlmode = nlmode; 8856 drv->ignore_if_down_event = 1; 8857 } 8858 8859done: 8860 if (ret) { 8861 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d " 8862 "from %d failed", nlmode, drv->nlmode); 8863 return ret; 8864 } 8865 8866 if (is_p2p_net_interface(nlmode)) 8867 nl80211_disable_11b_rates(drv, drv->ifindex, 1); 8868 else if (drv->disabled_11b_rates) 8869 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 8870 8871 if (is_ap_interface(nlmode)) { 8872 nl80211_mgmt_unsubscribe(bss, "start AP"); 8873 /* Setup additional AP mode functionality if needed */ 8874 if (nl80211_setup_ap(bss)) 8875 return -1; 8876 } else if (was_ap) { 8877 /* Remove additional AP mode functionality */ 8878 nl80211_teardown_ap(bss); 8879 } else { 8880 nl80211_mgmt_unsubscribe(bss, "mode change"); 8881 } 8882 8883 if (!bss->in_deinit && !is_ap_interface(nlmode) && 8884 nl80211_mgmt_subscribe_non_ap(bss) < 0) 8885 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action " 8886 "frame processing - ignore for now"); 8887 8888 return 0; 8889} 8890 8891 8892static int wpa_driver_nl80211_get_capa(void *priv, 8893 struct wpa_driver_capa *capa) 8894{ 8895 struct i802_bss *bss = priv; 8896 struct wpa_driver_nl80211_data *drv = bss->drv; 8897 if (!drv->has_capability) 8898 return -1; 8899 os_memcpy(capa, &drv->capa, sizeof(*capa)); 8900 if (drv->extended_capa && drv->extended_capa_mask) { 8901 capa->extended_capa = drv->extended_capa; 8902 capa->extended_capa_mask = drv->extended_capa_mask; 8903 capa->extended_capa_len = drv->extended_capa_len; 8904 } 8905 8906 if ((capa->flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) && 8907 !drv->allow_p2p_device) { 8908 wpa_printf(MSG_DEBUG, "nl80211: Do not indicate P2P_DEVICE support (p2p_device=1 driver param not specified)"); 8909 capa->flags &= ~WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 8910 } 8911 8912 return 0; 8913} 8914 8915 8916static int wpa_driver_nl80211_set_operstate(void *priv, int state) 8917{ 8918 struct i802_bss *bss = priv; 8919 struct wpa_driver_nl80211_data *drv = bss->drv; 8920 8921 wpa_printf(MSG_DEBUG, "nl80211: Set %s operstate %d->%d (%s)", 8922 bss->ifname, drv->operstate, state, 8923 state ? "UP" : "DORMANT"); 8924 drv->operstate = state; 8925 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1, 8926 state ? IF_OPER_UP : IF_OPER_DORMANT); 8927} 8928 8929 8930static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized) 8931{ 8932 struct i802_bss *bss = priv; 8933 struct wpa_driver_nl80211_data *drv = bss->drv; 8934 struct nl_msg *msg; 8935 struct nl80211_sta_flag_update upd; 8936 int ret = -ENOBUFS; 8937 8938 if (!drv->associated && is_zero_ether_addr(drv->bssid) && !authorized) { 8939 wpa_printf(MSG_DEBUG, "nl80211: Skip set_supp_port(unauthorized) while not associated"); 8940 return 0; 8941 } 8942 8943 wpa_printf(MSG_DEBUG, "nl80211: Set supplicant port %sauthorized for " 8944 MACSTR, authorized ? "" : "un", MAC2STR(drv->bssid)); 8945 8946 msg = nlmsg_alloc(); 8947 if (!msg) 8948 return -ENOMEM; 8949 8950 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8951 8952 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8953 if_nametoindex(bss->ifname)); 8954 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 8955 8956 os_memset(&upd, 0, sizeof(upd)); 8957 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED); 8958 if (authorized) 8959 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED); 8960 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 8961 8962 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8963 msg = NULL; 8964 if (!ret) 8965 return 0; 8966 nla_put_failure: 8967 nlmsg_free(msg); 8968 wpa_printf(MSG_DEBUG, "nl80211: Failed to set STA flag: %d (%s)", 8969 ret, strerror(-ret)); 8970 return ret; 8971} 8972 8973 8974/* Set kernel driver on given frequency (MHz) */ 8975static int i802_set_freq(void *priv, struct hostapd_freq_params *freq) 8976{ 8977 struct i802_bss *bss = priv; 8978 return wpa_driver_nl80211_set_freq(bss, freq); 8979} 8980 8981 8982static inline int min_int(int a, int b) 8983{ 8984 if (a < b) 8985 return a; 8986 return b; 8987} 8988 8989 8990static int get_key_handler(struct nl_msg *msg, void *arg) 8991{ 8992 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 8993 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 8994 8995 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 8996 genlmsg_attrlen(gnlh, 0), NULL); 8997 8998 /* 8999 * TODO: validate the key index and mac address! 9000 * Otherwise, there's a race condition as soon as 9001 * the kernel starts sending key notifications. 9002 */ 9003 9004 if (tb[NL80211_ATTR_KEY_SEQ]) 9005 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]), 9006 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6)); 9007 return NL_SKIP; 9008} 9009 9010 9011static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr, 9012 int idx, u8 *seq) 9013{ 9014 struct i802_bss *bss = priv; 9015 struct wpa_driver_nl80211_data *drv = bss->drv; 9016 struct nl_msg *msg; 9017 9018 msg = nlmsg_alloc(); 9019 if (!msg) 9020 return -ENOMEM; 9021 9022 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY); 9023 9024 if (addr) 9025 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 9026 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx); 9027 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface)); 9028 9029 memset(seq, 0, 6); 9030 9031 return send_and_recv_msgs(drv, msg, get_key_handler, seq); 9032 nla_put_failure: 9033 nlmsg_free(msg); 9034 return -ENOBUFS; 9035} 9036 9037 9038static int i802_set_rts(void *priv, int rts) 9039{ 9040 struct i802_bss *bss = priv; 9041 struct wpa_driver_nl80211_data *drv = bss->drv; 9042 struct nl_msg *msg; 9043 int ret = -ENOBUFS; 9044 u32 val; 9045 9046 msg = nlmsg_alloc(); 9047 if (!msg) 9048 return -ENOMEM; 9049 9050 if (rts >= 2347) 9051 val = (u32) -1; 9052 else 9053 val = rts; 9054 9055 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 9056 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9057 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val); 9058 9059 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9060 msg = NULL; 9061 if (!ret) 9062 return 0; 9063nla_put_failure: 9064 nlmsg_free(msg); 9065 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: " 9066 "%d (%s)", rts, ret, strerror(-ret)); 9067 return ret; 9068} 9069 9070 9071static int i802_set_frag(void *priv, int frag) 9072{ 9073 struct i802_bss *bss = priv; 9074 struct wpa_driver_nl80211_data *drv = bss->drv; 9075 struct nl_msg *msg; 9076 int ret = -ENOBUFS; 9077 u32 val; 9078 9079 msg = nlmsg_alloc(); 9080 if (!msg) 9081 return -ENOMEM; 9082 9083 if (frag >= 2346) 9084 val = (u32) -1; 9085 else 9086 val = frag; 9087 9088 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 9089 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9090 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val); 9091 9092 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9093 msg = NULL; 9094 if (!ret) 9095 return 0; 9096nla_put_failure: 9097 nlmsg_free(msg); 9098 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold " 9099 "%d: %d (%s)", frag, ret, strerror(-ret)); 9100 return ret; 9101} 9102 9103 9104static int i802_flush(void *priv) 9105{ 9106 struct i802_bss *bss = priv; 9107 struct wpa_driver_nl80211_data *drv = bss->drv; 9108 struct nl_msg *msg; 9109 int res; 9110 9111 msg = nlmsg_alloc(); 9112 if (!msg) 9113 return -1; 9114 9115 wpa_printf(MSG_DEBUG, "nl80211: flush -> DEL_STATION %s (all)", 9116 bss->ifname); 9117 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 9118 9119 /* 9120 * XXX: FIX! this needs to flush all VLANs too 9121 */ 9122 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 9123 if_nametoindex(bss->ifname)); 9124 9125 res = send_and_recv_msgs(drv, msg, NULL, NULL); 9126 if (res) { 9127 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d " 9128 "(%s)", res, strerror(-res)); 9129 } 9130 return res; 9131 nla_put_failure: 9132 nlmsg_free(msg); 9133 return -ENOBUFS; 9134} 9135 9136 9137static int get_sta_handler(struct nl_msg *msg, void *arg) 9138{ 9139 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9140 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9141 struct hostap_sta_driver_data *data = arg; 9142 struct nlattr *stats[NL80211_STA_INFO_MAX + 1]; 9143 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = { 9144 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 }, 9145 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 }, 9146 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 }, 9147 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 }, 9148 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 }, 9149 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 }, 9150 }; 9151 9152 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9153 genlmsg_attrlen(gnlh, 0), NULL); 9154 9155 /* 9156 * TODO: validate the interface and mac address! 9157 * Otherwise, there's a race condition as soon as 9158 * the kernel starts sending station notifications. 9159 */ 9160 9161 if (!tb[NL80211_ATTR_STA_INFO]) { 9162 wpa_printf(MSG_DEBUG, "sta stats missing!"); 9163 return NL_SKIP; 9164 } 9165 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX, 9166 tb[NL80211_ATTR_STA_INFO], 9167 stats_policy)) { 9168 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!"); 9169 return NL_SKIP; 9170 } 9171 9172 if (stats[NL80211_STA_INFO_INACTIVE_TIME]) 9173 data->inactive_msec = 9174 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]); 9175 if (stats[NL80211_STA_INFO_RX_BYTES]) 9176 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]); 9177 if (stats[NL80211_STA_INFO_TX_BYTES]) 9178 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]); 9179 if (stats[NL80211_STA_INFO_RX_PACKETS]) 9180 data->rx_packets = 9181 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]); 9182 if (stats[NL80211_STA_INFO_TX_PACKETS]) 9183 data->tx_packets = 9184 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]); 9185 if (stats[NL80211_STA_INFO_TX_FAILED]) 9186 data->tx_retry_failed = 9187 nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]); 9188 9189 return NL_SKIP; 9190} 9191 9192static int i802_read_sta_data(struct i802_bss *bss, 9193 struct hostap_sta_driver_data *data, 9194 const u8 *addr) 9195{ 9196 struct wpa_driver_nl80211_data *drv = bss->drv; 9197 struct nl_msg *msg; 9198 9199 os_memset(data, 0, sizeof(*data)); 9200 msg = nlmsg_alloc(); 9201 if (!msg) 9202 return -ENOMEM; 9203 9204 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 9205 9206 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 9207 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 9208 9209 return send_and_recv_msgs(drv, msg, get_sta_handler, data); 9210 nla_put_failure: 9211 nlmsg_free(msg); 9212 return -ENOBUFS; 9213} 9214 9215 9216static int i802_set_tx_queue_params(void *priv, int queue, int aifs, 9217 int cw_min, int cw_max, int burst_time) 9218{ 9219 struct i802_bss *bss = priv; 9220 struct wpa_driver_nl80211_data *drv = bss->drv; 9221 struct nl_msg *msg; 9222 struct nlattr *txq, *params; 9223 9224 msg = nlmsg_alloc(); 9225 if (!msg) 9226 return -1; 9227 9228 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 9229 9230 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 9231 9232 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS); 9233 if (!txq) 9234 goto nla_put_failure; 9235 9236 /* We are only sending parameters for a single TXQ at a time */ 9237 params = nla_nest_start(msg, 1); 9238 if (!params) 9239 goto nla_put_failure; 9240 9241 switch (queue) { 9242 case 0: 9243 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO); 9244 break; 9245 case 1: 9246 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI); 9247 break; 9248 case 2: 9249 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE); 9250 break; 9251 case 3: 9252 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK); 9253 break; 9254 } 9255 /* Burst time is configured in units of 0.1 msec and TXOP parameter in 9256 * 32 usec, so need to convert the value here. */ 9257 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32); 9258 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min); 9259 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max); 9260 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs); 9261 9262 nla_nest_end(msg, params); 9263 9264 nla_nest_end(msg, txq); 9265 9266 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 9267 return 0; 9268 msg = NULL; 9269 nla_put_failure: 9270 nlmsg_free(msg); 9271 return -1; 9272} 9273 9274 9275static int i802_set_sta_vlan(struct i802_bss *bss, const u8 *addr, 9276 const char *ifname, int vlan_id) 9277{ 9278 struct wpa_driver_nl80211_data *drv = bss->drv; 9279 struct nl_msg *msg; 9280 int ret = -ENOBUFS; 9281 9282 msg = nlmsg_alloc(); 9283 if (!msg) 9284 return -ENOMEM; 9285 9286 wpa_printf(MSG_DEBUG, "nl80211: %s[%d]: set_sta_vlan(" MACSTR 9287 ", ifname=%s[%d], vlan_id=%d)", 9288 bss->ifname, if_nametoindex(bss->ifname), 9289 MAC2STR(addr), ifname, if_nametoindex(ifname), vlan_id); 9290 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 9291 9292 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 9293 if_nametoindex(bss->ifname)); 9294 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 9295 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN, 9296 if_nametoindex(ifname)); 9297 9298 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9299 msg = NULL; 9300 if (ret < 0) { 9301 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr=" 9302 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)", 9303 MAC2STR(addr), ifname, vlan_id, ret, 9304 strerror(-ret)); 9305 } 9306 nla_put_failure: 9307 nlmsg_free(msg); 9308 return ret; 9309} 9310 9311 9312static int i802_get_inact_sec(void *priv, const u8 *addr) 9313{ 9314 struct hostap_sta_driver_data data; 9315 int ret; 9316 9317 data.inactive_msec = (unsigned long) -1; 9318 ret = i802_read_sta_data(priv, &data, addr); 9319 if (ret || data.inactive_msec == (unsigned long) -1) 9320 return -1; 9321 return data.inactive_msec / 1000; 9322} 9323 9324 9325static int i802_sta_clear_stats(void *priv, const u8 *addr) 9326{ 9327#if 0 9328 /* TODO */ 9329#endif 9330 return 0; 9331} 9332 9333 9334static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, 9335 int reason) 9336{ 9337 struct i802_bss *bss = priv; 9338 struct wpa_driver_nl80211_data *drv = bss->drv; 9339 struct ieee80211_mgmt mgmt; 9340 9341 if (drv->device_ap_sme) 9342 return wpa_driver_nl80211_sta_remove(bss, addr); 9343 9344 memset(&mgmt, 0, sizeof(mgmt)); 9345 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 9346 WLAN_FC_STYPE_DEAUTH); 9347 memcpy(mgmt.da, addr, ETH_ALEN); 9348 memcpy(mgmt.sa, own_addr, ETH_ALEN); 9349 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 9350 mgmt.u.deauth.reason_code = host_to_le16(reason); 9351 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 9352 IEEE80211_HDRLEN + 9353 sizeof(mgmt.u.deauth), 0, 0, 0, 0, 9354 0); 9355} 9356 9357 9358static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr, 9359 int reason) 9360{ 9361 struct i802_bss *bss = priv; 9362 struct wpa_driver_nl80211_data *drv = bss->drv; 9363 struct ieee80211_mgmt mgmt; 9364 9365 if (drv->device_ap_sme) 9366 return wpa_driver_nl80211_sta_remove(bss, addr); 9367 9368 memset(&mgmt, 0, sizeof(mgmt)); 9369 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 9370 WLAN_FC_STYPE_DISASSOC); 9371 memcpy(mgmt.da, addr, ETH_ALEN); 9372 memcpy(mgmt.sa, own_addr, ETH_ALEN); 9373 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 9374 mgmt.u.disassoc.reason_code = host_to_le16(reason); 9375 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 9376 IEEE80211_HDRLEN + 9377 sizeof(mgmt.u.disassoc), 0, 0, 0, 0, 9378 0); 9379} 9380 9381 9382static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 9383{ 9384 int i; 9385 int *old; 9386 9387 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d", 9388 ifidx); 9389 for (i = 0; i < drv->num_if_indices; i++) { 9390 if (drv->if_indices[i] == 0) { 9391 drv->if_indices[i] = ifidx; 9392 return; 9393 } 9394 } 9395 9396 if (drv->if_indices != drv->default_if_indices) 9397 old = drv->if_indices; 9398 else 9399 old = NULL; 9400 9401 drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1, 9402 sizeof(int)); 9403 if (!drv->if_indices) { 9404 if (!old) 9405 drv->if_indices = drv->default_if_indices; 9406 else 9407 drv->if_indices = old; 9408 wpa_printf(MSG_ERROR, "Failed to reallocate memory for " 9409 "interfaces"); 9410 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx); 9411 return; 9412 } else if (!old) 9413 os_memcpy(drv->if_indices, drv->default_if_indices, 9414 sizeof(drv->default_if_indices)); 9415 drv->if_indices[drv->num_if_indices] = ifidx; 9416 drv->num_if_indices++; 9417} 9418 9419 9420static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 9421{ 9422 int i; 9423 9424 for (i = 0; i < drv->num_if_indices; i++) { 9425 if (drv->if_indices[i] == ifidx) { 9426 drv->if_indices[i] = 0; 9427 break; 9428 } 9429 } 9430} 9431 9432 9433static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 9434{ 9435 int i; 9436 9437 for (i = 0; i < drv->num_if_indices; i++) 9438 if (drv->if_indices[i] == ifidx) 9439 return 1; 9440 9441 return 0; 9442} 9443 9444 9445static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val, 9446 const char *bridge_ifname, char *ifname_wds) 9447{ 9448 struct i802_bss *bss = priv; 9449 struct wpa_driver_nl80211_data *drv = bss->drv; 9450 char name[IFNAMSIZ + 1]; 9451 9452 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid); 9453 if (ifname_wds) 9454 os_strlcpy(ifname_wds, name, IFNAMSIZ + 1); 9455 9456 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR 9457 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name); 9458 if (val) { 9459 if (!if_nametoindex(name)) { 9460 if (nl80211_create_iface(drv, name, 9461 NL80211_IFTYPE_AP_VLAN, 9462 bss->addr, 1, NULL, NULL, 0) < 9463 0) 9464 return -1; 9465 if (bridge_ifname && 9466 linux_br_add_if(drv->global->ioctl_sock, 9467 bridge_ifname, name) < 0) 9468 return -1; 9469 } 9470 if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) { 9471 wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA " 9472 "interface %s up", name); 9473 } 9474 return i802_set_sta_vlan(priv, addr, name, 0); 9475 } else { 9476 if (bridge_ifname) 9477 linux_br_del_if(drv->global->ioctl_sock, bridge_ifname, 9478 name); 9479 9480 i802_set_sta_vlan(priv, addr, bss->ifname, 0); 9481 nl80211_remove_iface(drv, if_nametoindex(name)); 9482 return 0; 9483 } 9484} 9485 9486 9487static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx) 9488{ 9489 struct wpa_driver_nl80211_data *drv = eloop_ctx; 9490 struct sockaddr_ll lladdr; 9491 unsigned char buf[3000]; 9492 int len; 9493 socklen_t fromlen = sizeof(lladdr); 9494 9495 len = recvfrom(sock, buf, sizeof(buf), 0, 9496 (struct sockaddr *)&lladdr, &fromlen); 9497 if (len < 0) { 9498 wpa_printf(MSG_ERROR, "nl80211: EAPOL recv failed: %s", 9499 strerror(errno)); 9500 return; 9501 } 9502 9503 if (have_ifidx(drv, lladdr.sll_ifindex)) 9504 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len); 9505} 9506 9507 9508static int i802_check_bridge(struct wpa_driver_nl80211_data *drv, 9509 struct i802_bss *bss, 9510 const char *brname, const char *ifname) 9511{ 9512 int ifindex; 9513 char in_br[IFNAMSIZ]; 9514 9515 os_strlcpy(bss->brname, brname, IFNAMSIZ); 9516 ifindex = if_nametoindex(brname); 9517 if (ifindex == 0) { 9518 /* 9519 * Bridge was configured, but the bridge device does 9520 * not exist. Try to add it now. 9521 */ 9522 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) { 9523 wpa_printf(MSG_ERROR, "nl80211: Failed to add the " 9524 "bridge interface %s: %s", 9525 brname, strerror(errno)); 9526 return -1; 9527 } 9528 bss->added_bridge = 1; 9529 add_ifidx(drv, if_nametoindex(brname)); 9530 } 9531 9532 if (linux_br_get(in_br, ifname) == 0) { 9533 if (os_strcmp(in_br, brname) == 0) 9534 return 0; /* already in the bridge */ 9535 9536 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from " 9537 "bridge %s", ifname, in_br); 9538 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) < 9539 0) { 9540 wpa_printf(MSG_ERROR, "nl80211: Failed to " 9541 "remove interface %s from bridge " 9542 "%s: %s", 9543 ifname, brname, strerror(errno)); 9544 return -1; 9545 } 9546 } 9547 9548 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s", 9549 ifname, brname); 9550 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) { 9551 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s " 9552 "into bridge %s: %s", 9553 ifname, brname, strerror(errno)); 9554 return -1; 9555 } 9556 bss->added_if_into_bridge = 1; 9557 9558 return 0; 9559} 9560 9561 9562static void *i802_init(struct hostapd_data *hapd, 9563 struct wpa_init_params *params) 9564{ 9565 struct wpa_driver_nl80211_data *drv; 9566 struct i802_bss *bss; 9567 size_t i; 9568 char brname[IFNAMSIZ]; 9569 int ifindex, br_ifindex; 9570 int br_added = 0; 9571 9572 bss = wpa_driver_nl80211_drv_init(hapd, params->ifname, 9573 params->global_priv, 1, 9574 params->bssid); 9575 if (bss == NULL) 9576 return NULL; 9577 9578 drv = bss->drv; 9579 9580 if (linux_br_get(brname, params->ifname) == 0) { 9581 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s", 9582 params->ifname, brname); 9583 br_ifindex = if_nametoindex(brname); 9584 } else { 9585 brname[0] = '\0'; 9586 br_ifindex = 0; 9587 } 9588 9589 for (i = 0; i < params->num_bridge; i++) { 9590 if (params->bridge[i]) { 9591 ifindex = if_nametoindex(params->bridge[i]); 9592 if (ifindex) 9593 add_ifidx(drv, ifindex); 9594 if (ifindex == br_ifindex) 9595 br_added = 1; 9596 } 9597 } 9598 if (!br_added && br_ifindex && 9599 (params->num_bridge == 0 || !params->bridge[0])) 9600 add_ifidx(drv, br_ifindex); 9601 9602 /* start listening for EAPOL on the default AP interface */ 9603 add_ifidx(drv, drv->ifindex); 9604 9605 if (params->num_bridge && params->bridge[0] && 9606 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0) 9607 goto failed; 9608 9609 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE)); 9610 if (drv->eapol_sock < 0) { 9611 wpa_printf(MSG_ERROR, "nl80211: socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE) failed: %s", 9612 strerror(errno)); 9613 goto failed; 9614 } 9615 9616 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL)) 9617 { 9618 wpa_printf(MSG_INFO, "nl80211: Could not register read socket for eapol"); 9619 goto failed; 9620 } 9621 9622 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 9623 params->own_addr)) 9624 goto failed; 9625 9626 memcpy(bss->addr, params->own_addr, ETH_ALEN); 9627 9628 return bss; 9629 9630failed: 9631 wpa_driver_nl80211_deinit(bss); 9632 return NULL; 9633} 9634 9635 9636static void i802_deinit(void *priv) 9637{ 9638 struct i802_bss *bss = priv; 9639 wpa_driver_nl80211_deinit(bss); 9640} 9641 9642 9643static enum nl80211_iftype wpa_driver_nl80211_if_type( 9644 enum wpa_driver_if_type type) 9645{ 9646 switch (type) { 9647 case WPA_IF_STATION: 9648 return NL80211_IFTYPE_STATION; 9649 case WPA_IF_P2P_CLIENT: 9650 case WPA_IF_P2P_GROUP: 9651 return NL80211_IFTYPE_P2P_CLIENT; 9652 case WPA_IF_AP_VLAN: 9653 return NL80211_IFTYPE_AP_VLAN; 9654 case WPA_IF_AP_BSS: 9655 return NL80211_IFTYPE_AP; 9656 case WPA_IF_P2P_GO: 9657 return NL80211_IFTYPE_P2P_GO; 9658 case WPA_IF_P2P_DEVICE: 9659 return NL80211_IFTYPE_P2P_DEVICE; 9660 } 9661 return -1; 9662} 9663 9664 9665#ifdef CONFIG_P2P 9666 9667static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr) 9668{ 9669 struct wpa_driver_nl80211_data *drv; 9670 dl_list_for_each(drv, &global->interfaces, 9671 struct wpa_driver_nl80211_data, list) { 9672 if (os_memcmp(addr, drv->first_bss->addr, ETH_ALEN) == 0) 9673 return 1; 9674 } 9675 return 0; 9676} 9677 9678 9679static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv, 9680 u8 *new_addr) 9681{ 9682 unsigned int idx; 9683 9684 if (!drv->global) 9685 return -1; 9686 9687 os_memcpy(new_addr, drv->first_bss->addr, ETH_ALEN); 9688 for (idx = 0; idx < 64; idx++) { 9689 new_addr[0] = drv->first_bss->addr[0] | 0x02; 9690 new_addr[0] ^= idx << 2; 9691 if (!nl80211_addr_in_use(drv->global, new_addr)) 9692 break; 9693 } 9694 if (idx == 64) 9695 return -1; 9696 9697 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address " 9698 MACSTR, MAC2STR(new_addr)); 9699 9700 return 0; 9701} 9702 9703#endif /* CONFIG_P2P */ 9704 9705 9706struct wdev_info { 9707 u64 wdev_id; 9708 int wdev_id_set; 9709 u8 macaddr[ETH_ALEN]; 9710}; 9711 9712static int nl80211_wdev_handler(struct nl_msg *msg, void *arg) 9713{ 9714 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9715 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9716 struct wdev_info *wi = arg; 9717 9718 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9719 genlmsg_attrlen(gnlh, 0), NULL); 9720 if (tb[NL80211_ATTR_WDEV]) { 9721 wi->wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 9722 wi->wdev_id_set = 1; 9723 } 9724 9725 if (tb[NL80211_ATTR_MAC]) 9726 os_memcpy(wi->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 9727 ETH_ALEN); 9728 9729 return NL_SKIP; 9730} 9731 9732 9733static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type, 9734 const char *ifname, const u8 *addr, 9735 void *bss_ctx, void **drv_priv, 9736 char *force_ifname, u8 *if_addr, 9737 const char *bridge, int use_existing) 9738{ 9739 enum nl80211_iftype nlmode; 9740 struct i802_bss *bss = priv; 9741 struct wpa_driver_nl80211_data *drv = bss->drv; 9742 int ifidx; 9743 int added = 1; 9744 9745 if (addr) 9746 os_memcpy(if_addr, addr, ETH_ALEN); 9747 nlmode = wpa_driver_nl80211_if_type(type); 9748 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { 9749 struct wdev_info p2pdev_info; 9750 9751 os_memset(&p2pdev_info, 0, sizeof(p2pdev_info)); 9752 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 9753 0, nl80211_wdev_handler, 9754 &p2pdev_info, use_existing); 9755 if (!p2pdev_info.wdev_id_set || ifidx != 0) { 9756 wpa_printf(MSG_ERROR, "nl80211: Failed to create a P2P Device interface %s", 9757 ifname); 9758 return -1; 9759 } 9760 9761 drv->global->if_add_wdevid = p2pdev_info.wdev_id; 9762 drv->global->if_add_wdevid_set = p2pdev_info.wdev_id_set; 9763 if (!is_zero_ether_addr(p2pdev_info.macaddr)) 9764 os_memcpy(if_addr, p2pdev_info.macaddr, ETH_ALEN); 9765 wpa_printf(MSG_DEBUG, "nl80211: New P2P Device interface %s (0x%llx) created", 9766 ifname, 9767 (long long unsigned int) p2pdev_info.wdev_id); 9768 } else { 9769 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 9770 0, NULL, NULL, use_existing); 9771 if (use_existing && ifidx == -ENFILE) { 9772 added = 0; 9773 ifidx = if_nametoindex(ifname); 9774 } else if (ifidx < 0) { 9775 return -1; 9776 } 9777 } 9778 9779 if (!addr) { 9780 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 9781 os_memcpy(if_addr, bss->addr, ETH_ALEN); 9782 else if (linux_get_ifhwaddr(drv->global->ioctl_sock, 9783 bss->ifname, if_addr) < 0) { 9784 if (added) 9785 nl80211_remove_iface(drv, ifidx); 9786 return -1; 9787 } 9788 } 9789 9790#ifdef CONFIG_P2P 9791 if (!addr && 9792 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP || 9793 type == WPA_IF_P2P_GO)) { 9794 /* Enforce unique P2P Interface Address */ 9795 u8 new_addr[ETH_ALEN]; 9796 9797 if (linux_get_ifhwaddr(drv->global->ioctl_sock, ifname, 9798 new_addr) < 0) { 9799 nl80211_remove_iface(drv, ifidx); 9800 return -1; 9801 } 9802 if (nl80211_addr_in_use(drv->global, new_addr)) { 9803 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address " 9804 "for P2P group interface"); 9805 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) { 9806 nl80211_remove_iface(drv, ifidx); 9807 return -1; 9808 } 9809 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 9810 new_addr) < 0) { 9811 nl80211_remove_iface(drv, ifidx); 9812 return -1; 9813 } 9814 } 9815 os_memcpy(if_addr, new_addr, ETH_ALEN); 9816 } 9817#endif /* CONFIG_P2P */ 9818 9819 if (type == WPA_IF_AP_BSS) { 9820 struct i802_bss *new_bss = os_zalloc(sizeof(*new_bss)); 9821 if (new_bss == NULL) { 9822 if (added) 9823 nl80211_remove_iface(drv, ifidx); 9824 return -1; 9825 } 9826 9827 if (bridge && 9828 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) { 9829 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new " 9830 "interface %s to a bridge %s", 9831 ifname, bridge); 9832 if (added) 9833 nl80211_remove_iface(drv, ifidx); 9834 os_free(new_bss); 9835 return -1; 9836 } 9837 9838 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1)) 9839 { 9840 nl80211_remove_iface(drv, ifidx); 9841 os_free(new_bss); 9842 return -1; 9843 } 9844 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ); 9845 os_memcpy(new_bss->addr, if_addr, ETH_ALEN); 9846 new_bss->ifindex = ifidx; 9847 new_bss->drv = drv; 9848 new_bss->next = drv->first_bss->next; 9849 new_bss->freq = drv->first_bss->freq; 9850 new_bss->ctx = bss_ctx; 9851 new_bss->added_if = added; 9852 drv->first_bss->next = new_bss; 9853 if (drv_priv) 9854 *drv_priv = new_bss; 9855 nl80211_init_bss(new_bss); 9856 9857 /* Subscribe management frames for this WPA_IF_AP_BSS */ 9858 if (nl80211_setup_ap(new_bss)) 9859 return -1; 9860 } 9861 9862 if (drv->global) 9863 drv->global->if_add_ifindex = ifidx; 9864 9865 return 0; 9866} 9867 9868 9869static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 9870 enum wpa_driver_if_type type, 9871 const char *ifname) 9872{ 9873 struct wpa_driver_nl80211_data *drv = bss->drv; 9874 int ifindex = if_nametoindex(ifname); 9875 9876 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d added_if=%d", 9877 __func__, type, ifname, ifindex, bss->added_if); 9878 if (ifindex > 0 && (bss->added_if || bss->ifindex != ifindex)) 9879 nl80211_remove_iface(drv, ifindex); 9880 9881 if (type != WPA_IF_AP_BSS) 9882 return 0; 9883 9884 if (bss->added_if_into_bridge) { 9885 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 9886 bss->ifname) < 0) 9887 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 9888 "interface %s from bridge %s: %s", 9889 bss->ifname, bss->brname, strerror(errno)); 9890 } 9891 if (bss->added_bridge) { 9892 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 9893 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 9894 "bridge %s: %s", 9895 bss->brname, strerror(errno)); 9896 } 9897 9898 if (bss != drv->first_bss) { 9899 struct i802_bss *tbss; 9900 9901 wpa_printf(MSG_DEBUG, "nl80211: Not the first BSS - remove it"); 9902 for (tbss = drv->first_bss; tbss; tbss = tbss->next) { 9903 if (tbss->next == bss) { 9904 tbss->next = bss->next; 9905 /* Unsubscribe management frames */ 9906 nl80211_teardown_ap(bss); 9907 nl80211_destroy_bss(bss); 9908 os_free(bss); 9909 bss = NULL; 9910 break; 9911 } 9912 } 9913 if (bss) 9914 wpa_printf(MSG_INFO, "nl80211: %s - could not find " 9915 "BSS %p in the list", __func__, bss); 9916 } else { 9917 wpa_printf(MSG_DEBUG, "nl80211: First BSS - reassign context"); 9918 nl80211_teardown_ap(bss); 9919 if (!bss->added_if && !drv->first_bss->next) 9920 wpa_driver_nl80211_del_beacon(drv); 9921 nl80211_destroy_bss(bss); 9922 if (!bss->added_if) 9923 i802_set_iface_flags(bss, 0); 9924 if (drv->first_bss->next) { 9925 drv->first_bss = drv->first_bss->next; 9926 drv->ctx = drv->first_bss->ctx; 9927 os_free(bss); 9928 } else { 9929 wpa_printf(MSG_DEBUG, "nl80211: No second BSS to reassign context to"); 9930 } 9931 } 9932 9933 return 0; 9934} 9935 9936 9937static int cookie_handler(struct nl_msg *msg, void *arg) 9938{ 9939 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9940 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9941 u64 *cookie = arg; 9942 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9943 genlmsg_attrlen(gnlh, 0), NULL); 9944 if (tb[NL80211_ATTR_COOKIE]) 9945 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 9946 return NL_SKIP; 9947} 9948 9949 9950static int nl80211_send_frame_cmd(struct i802_bss *bss, 9951 unsigned int freq, unsigned int wait, 9952 const u8 *buf, size_t buf_len, 9953 u64 *cookie_out, int no_cck, int no_ack, 9954 int offchanok) 9955{ 9956 struct wpa_driver_nl80211_data *drv = bss->drv; 9957 struct nl_msg *msg; 9958 u64 cookie; 9959 int ret = -1; 9960 9961 msg = nlmsg_alloc(); 9962 if (!msg) 9963 return -1; 9964 9965 wpa_printf(MSG_MSGDUMP, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d " 9966 "no_ack=%d offchanok=%d", 9967 freq, wait, no_cck, no_ack, offchanok); 9968 wpa_hexdump(MSG_MSGDUMP, "CMD_FRAME", buf, buf_len); 9969 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME); 9970 9971 if (nl80211_set_iface_id(msg, bss) < 0) 9972 goto nla_put_failure; 9973 if (freq) 9974 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 9975 if (wait) 9976 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait); 9977 if (offchanok && ((drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) || 9978 drv->test_use_roc_tx)) 9979 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK); 9980 if (no_cck) 9981 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 9982 if (no_ack) 9983 NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK); 9984 9985 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf); 9986 9987 cookie = 0; 9988 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 9989 msg = NULL; 9990 if (ret) { 9991 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d " 9992 "(%s) (freq=%u wait=%u)", ret, strerror(-ret), 9993 freq, wait); 9994 goto nla_put_failure; 9995 } 9996 wpa_printf(MSG_MSGDUMP, "nl80211: Frame TX command accepted%s; " 9997 "cookie 0x%llx", no_ack ? " (no ACK)" : "", 9998 (long long unsigned int) cookie); 9999 10000 if (cookie_out) 10001 *cookie_out = no_ack ? (u64) -1 : cookie; 10002 10003nla_put_failure: 10004 nlmsg_free(msg); 10005 return ret; 10006} 10007 10008 10009static int wpa_driver_nl80211_send_action(struct i802_bss *bss, 10010 unsigned int freq, 10011 unsigned int wait_time, 10012 const u8 *dst, const u8 *src, 10013 const u8 *bssid, 10014 const u8 *data, size_t data_len, 10015 int no_cck) 10016{ 10017 struct wpa_driver_nl80211_data *drv = bss->drv; 10018 int ret = -1; 10019 u8 *buf; 10020 struct ieee80211_hdr *hdr; 10021 10022 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, " 10023 "freq=%u MHz wait=%d ms no_cck=%d)", 10024 drv->ifindex, freq, wait_time, no_cck); 10025 10026 buf = os_zalloc(24 + data_len); 10027 if (buf == NULL) 10028 return ret; 10029 os_memcpy(buf + 24, data, data_len); 10030 hdr = (struct ieee80211_hdr *) buf; 10031 hdr->frame_control = 10032 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION); 10033 os_memcpy(hdr->addr1, dst, ETH_ALEN); 10034 os_memcpy(hdr->addr2, src, ETH_ALEN); 10035 os_memcpy(hdr->addr3, bssid, ETH_ALEN); 10036 10037 if (is_ap_interface(drv->nlmode) && 10038 (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) || 10039 (int) freq == bss->freq || drv->device_ap_sme || 10040 !drv->use_monitor)) 10041 ret = wpa_driver_nl80211_send_mlme(bss, buf, 24 + data_len, 10042 0, freq, no_cck, 1, 10043 wait_time); 10044 else 10045 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf, 10046 24 + data_len, 10047 &drv->send_action_cookie, 10048 no_cck, 0, 1); 10049 10050 os_free(buf); 10051 return ret; 10052} 10053 10054 10055static void wpa_driver_nl80211_send_action_cancel_wait(void *priv) 10056{ 10057 struct i802_bss *bss = priv; 10058 struct wpa_driver_nl80211_data *drv = bss->drv; 10059 struct nl_msg *msg; 10060 int ret; 10061 10062 msg = nlmsg_alloc(); 10063 if (!msg) 10064 return; 10065 10066 wpa_printf(MSG_DEBUG, "nl80211: Cancel TX frame wait: cookie=0x%llx", 10067 (long long unsigned int) drv->send_action_cookie); 10068 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL); 10069 10070 if (nl80211_set_iface_id(msg, bss) < 0) 10071 goto nla_put_failure; 10072 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie); 10073 10074 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10075 msg = NULL; 10076 if (ret) 10077 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d " 10078 "(%s)", ret, strerror(-ret)); 10079 10080 nla_put_failure: 10081 nlmsg_free(msg); 10082} 10083 10084 10085static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq, 10086 unsigned int duration) 10087{ 10088 struct i802_bss *bss = priv; 10089 struct wpa_driver_nl80211_data *drv = bss->drv; 10090 struct nl_msg *msg; 10091 int ret; 10092 u64 cookie; 10093 10094 msg = nlmsg_alloc(); 10095 if (!msg) 10096 return -1; 10097 10098 nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL); 10099 10100 if (nl80211_set_iface_id(msg, bss) < 0) 10101 goto nla_put_failure; 10102 10103 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 10104 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); 10105 10106 cookie = 0; 10107 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 10108 msg = NULL; 10109 if (ret == 0) { 10110 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie " 10111 "0x%llx for freq=%u MHz duration=%u", 10112 (long long unsigned int) cookie, freq, duration); 10113 drv->remain_on_chan_cookie = cookie; 10114 drv->pending_remain_on_chan = 1; 10115 return 0; 10116 } 10117 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel " 10118 "(freq=%d duration=%u): %d (%s)", 10119 freq, duration, ret, strerror(-ret)); 10120nla_put_failure: 10121 nlmsg_free(msg); 10122 return -1; 10123} 10124 10125 10126static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv) 10127{ 10128 struct i802_bss *bss = priv; 10129 struct wpa_driver_nl80211_data *drv = bss->drv; 10130 struct nl_msg *msg; 10131 int ret; 10132 10133 if (!drv->pending_remain_on_chan) { 10134 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel " 10135 "to cancel"); 10136 return -1; 10137 } 10138 10139 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie " 10140 "0x%llx", 10141 (long long unsigned int) drv->remain_on_chan_cookie); 10142 10143 msg = nlmsg_alloc(); 10144 if (!msg) 10145 return -1; 10146 10147 nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL); 10148 10149 if (nl80211_set_iface_id(msg, bss) < 0) 10150 goto nla_put_failure; 10151 10152 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie); 10153 10154 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10155 msg = NULL; 10156 if (ret == 0) 10157 return 0; 10158 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: " 10159 "%d (%s)", ret, strerror(-ret)); 10160nla_put_failure: 10161 nlmsg_free(msg); 10162 return -1; 10163} 10164 10165 10166static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report) 10167{ 10168 struct wpa_driver_nl80211_data *drv = bss->drv; 10169 10170 if (!report) { 10171 if (bss->nl_preq && drv->device_ap_sme && 10172 is_ap_interface(drv->nlmode)) { 10173 /* 10174 * Do not disable Probe Request reporting that was 10175 * enabled in nl80211_setup_ap(). 10176 */ 10177 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of " 10178 "Probe Request reporting nl_preq=%p while " 10179 "in AP mode", bss->nl_preq); 10180 } else if (bss->nl_preq) { 10181 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request " 10182 "reporting nl_preq=%p", bss->nl_preq); 10183 nl80211_destroy_eloop_handle(&bss->nl_preq); 10184 } 10185 return 0; 10186 } 10187 10188 if (bss->nl_preq) { 10189 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting " 10190 "already on! nl_preq=%p", bss->nl_preq); 10191 return 0; 10192 } 10193 10194 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq"); 10195 if (bss->nl_preq == NULL) 10196 return -1; 10197 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request " 10198 "reporting nl_preq=%p", bss->nl_preq); 10199 10200 if (nl80211_register_frame(bss, bss->nl_preq, 10201 (WLAN_FC_TYPE_MGMT << 2) | 10202 (WLAN_FC_STYPE_PROBE_REQ << 4), 10203 NULL, 0) < 0) 10204 goto out_err; 10205 10206 nl80211_register_eloop_read(&bss->nl_preq, 10207 wpa_driver_nl80211_event_receive, 10208 bss->nl_cb); 10209 10210 return 0; 10211 10212 out_err: 10213 nl_destroy_handles(&bss->nl_preq); 10214 return -1; 10215} 10216 10217 10218static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 10219 int ifindex, int disabled) 10220{ 10221 struct nl_msg *msg; 10222 struct nlattr *bands, *band; 10223 int ret; 10224 10225 msg = nlmsg_alloc(); 10226 if (!msg) 10227 return -1; 10228 10229 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK); 10230 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 10231 10232 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES); 10233 if (!bands) 10234 goto nla_put_failure; 10235 10236 /* 10237 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything 10238 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS 10239 * rates. All 5 GHz rates are left enabled. 10240 */ 10241 band = nla_nest_start(msg, NL80211_BAND_2GHZ); 10242 if (!band) 10243 goto nla_put_failure; 10244 if (disabled) { 10245 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8, 10246 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 10247 } 10248 nla_nest_end(msg, band); 10249 10250 nla_nest_end(msg, bands); 10251 10252 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10253 msg = NULL; 10254 if (ret) { 10255 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d " 10256 "(%s)", ret, strerror(-ret)); 10257 } else 10258 drv->disabled_11b_rates = disabled; 10259 10260 return ret; 10261 10262nla_put_failure: 10263 nlmsg_free(msg); 10264 return -1; 10265} 10266 10267 10268static int wpa_driver_nl80211_deinit_ap(void *priv) 10269{ 10270 struct i802_bss *bss = priv; 10271 struct wpa_driver_nl80211_data *drv = bss->drv; 10272 if (!is_ap_interface(drv->nlmode)) 10273 return -1; 10274 wpa_driver_nl80211_del_beacon(drv); 10275 10276 /* 10277 * If the P2P GO interface was dynamically added, then it is 10278 * possible that the interface change to station is not possible. 10279 */ 10280 if (drv->nlmode == NL80211_IFTYPE_P2P_GO && bss->if_dynamic) 10281 return 0; 10282 10283 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 10284} 10285 10286 10287static int wpa_driver_nl80211_stop_ap(void *priv) 10288{ 10289 struct i802_bss *bss = priv; 10290 struct wpa_driver_nl80211_data *drv = bss->drv; 10291 if (!is_ap_interface(drv->nlmode)) 10292 return -1; 10293 wpa_driver_nl80211_del_beacon(drv); 10294 bss->beacon_set = 0; 10295 return 0; 10296} 10297 10298 10299static int wpa_driver_nl80211_deinit_p2p_cli(void *priv) 10300{ 10301 struct i802_bss *bss = priv; 10302 struct wpa_driver_nl80211_data *drv = bss->drv; 10303 if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT) 10304 return -1; 10305 10306 /* 10307 * If the P2P Client interface was dynamically added, then it is 10308 * possible that the interface change to station is not possible. 10309 */ 10310 if (bss->if_dynamic) 10311 return 0; 10312 10313 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 10314} 10315 10316 10317static void wpa_driver_nl80211_resume(void *priv) 10318{ 10319 struct i802_bss *bss = priv; 10320 10321 if (i802_set_iface_flags(bss, 1)) 10322 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on resume event"); 10323} 10324 10325 10326static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap, 10327 const u8 *ies, size_t ies_len) 10328{ 10329 struct i802_bss *bss = priv; 10330 struct wpa_driver_nl80211_data *drv = bss->drv; 10331 int ret; 10332 u8 *data, *pos; 10333 size_t data_len; 10334 const u8 *own_addr = bss->addr; 10335 10336 if (action != 1) { 10337 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action " 10338 "action %d", action); 10339 return -1; 10340 } 10341 10342 /* 10343 * Action frame payload: 10344 * Category[1] = 6 (Fast BSS Transition) 10345 * Action[1] = 1 (Fast BSS Transition Request) 10346 * STA Address 10347 * Target AP Address 10348 * FT IEs 10349 */ 10350 10351 data_len = 2 + 2 * ETH_ALEN + ies_len; 10352 data = os_malloc(data_len); 10353 if (data == NULL) 10354 return -1; 10355 pos = data; 10356 *pos++ = 0x06; /* FT Action category */ 10357 *pos++ = action; 10358 os_memcpy(pos, own_addr, ETH_ALEN); 10359 pos += ETH_ALEN; 10360 os_memcpy(pos, target_ap, ETH_ALEN); 10361 pos += ETH_ALEN; 10362 os_memcpy(pos, ies, ies_len); 10363 10364 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0, 10365 drv->bssid, own_addr, drv->bssid, 10366 data, data_len, 0); 10367 os_free(data); 10368 10369 return ret; 10370} 10371 10372 10373static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis) 10374{ 10375 struct i802_bss *bss = priv; 10376 struct wpa_driver_nl80211_data *drv = bss->drv; 10377 struct nl_msg *msg; 10378 struct nlattr *cqm; 10379 int ret = -1; 10380 10381 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d " 10382 "hysteresis=%d", threshold, hysteresis); 10383 10384 msg = nlmsg_alloc(); 10385 if (!msg) 10386 return -1; 10387 10388 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM); 10389 10390 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10391 10392 cqm = nla_nest_start(msg, NL80211_ATTR_CQM); 10393 if (cqm == NULL) 10394 goto nla_put_failure; 10395 10396 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THOLD, threshold); 10397 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_HYST, hysteresis); 10398 nla_nest_end(msg, cqm); 10399 10400 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10401 msg = NULL; 10402 10403nla_put_failure: 10404 nlmsg_free(msg); 10405 return ret; 10406} 10407 10408 10409static int get_channel_width(struct nl_msg *msg, void *arg) 10410{ 10411 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 10412 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 10413 struct wpa_signal_info *sig_change = arg; 10414 10415 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 10416 genlmsg_attrlen(gnlh, 0), NULL); 10417 10418 sig_change->center_frq1 = -1; 10419 sig_change->center_frq2 = -1; 10420 sig_change->chanwidth = CHAN_WIDTH_UNKNOWN; 10421 10422 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) { 10423 sig_change->chanwidth = convert2width( 10424 nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH])); 10425 if (tb[NL80211_ATTR_CENTER_FREQ1]) 10426 sig_change->center_frq1 = 10427 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); 10428 if (tb[NL80211_ATTR_CENTER_FREQ2]) 10429 sig_change->center_frq2 = 10430 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); 10431 } 10432 10433 return NL_SKIP; 10434} 10435 10436 10437static int nl80211_get_channel_width(struct wpa_driver_nl80211_data *drv, 10438 struct wpa_signal_info *sig) 10439{ 10440 struct nl_msg *msg; 10441 10442 msg = nlmsg_alloc(); 10443 if (!msg) 10444 return -ENOMEM; 10445 10446 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_INTERFACE); 10447 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10448 10449 return send_and_recv_msgs(drv, msg, get_channel_width, sig); 10450 10451nla_put_failure: 10452 nlmsg_free(msg); 10453 return -ENOBUFS; 10454} 10455 10456 10457static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si) 10458{ 10459 struct i802_bss *bss = priv; 10460 struct wpa_driver_nl80211_data *drv = bss->drv; 10461 int res; 10462 10463 os_memset(si, 0, sizeof(*si)); 10464 res = nl80211_get_link_signal(drv, si); 10465 if (res != 0) 10466 return res; 10467 10468 res = nl80211_get_channel_width(drv, si); 10469 if (res != 0) 10470 return res; 10471 10472 return nl80211_get_link_noise(drv, si); 10473} 10474 10475 10476static int wpa_driver_nl80211_shared_freq(void *priv) 10477{ 10478 struct i802_bss *bss = priv; 10479 struct wpa_driver_nl80211_data *drv = bss->drv; 10480 struct wpa_driver_nl80211_data *driver; 10481 int freq = 0; 10482 10483 /* 10484 * If the same PHY is in connected state with some other interface, 10485 * then retrieve the assoc freq. 10486 */ 10487 wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s", 10488 drv->phyname); 10489 10490 dl_list_for_each(driver, &drv->global->interfaces, 10491 struct wpa_driver_nl80211_data, list) { 10492 if (drv == driver || 10493 os_strcmp(drv->phyname, driver->phyname) != 0 || 10494 !driver->associated) 10495 continue; 10496 10497 wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s " 10498 MACSTR, 10499 driver->phyname, driver->first_bss->ifname, 10500 MAC2STR(driver->first_bss->addr)); 10501 if (is_ap_interface(driver->nlmode)) 10502 freq = driver->first_bss->freq; 10503 else 10504 freq = nl80211_get_assoc_freq(driver); 10505 wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d", 10506 drv->phyname, freq); 10507 } 10508 10509 if (!freq) 10510 wpa_printf(MSG_DEBUG, "nl80211: No shared interface for " 10511 "PHY (%s) in associated state", drv->phyname); 10512 10513 return freq; 10514} 10515 10516 10517static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len, 10518 int encrypt) 10519{ 10520 struct i802_bss *bss = priv; 10521 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0, 10522 0, 0, 0, 0); 10523} 10524 10525 10526static int nl80211_set_param(void *priv, const char *param) 10527{ 10528 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param); 10529 if (param == NULL) 10530 return 0; 10531 10532#ifdef CONFIG_P2P 10533 if (os_strstr(param, "use_p2p_group_interface=1")) { 10534 struct i802_bss *bss = priv; 10535 struct wpa_driver_nl80211_data *drv = bss->drv; 10536 10537 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 10538 "interface"); 10539 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 10540 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 10541 } 10542 10543 if (os_strstr(param, "p2p_device=1")) { 10544 struct i802_bss *bss = priv; 10545 struct wpa_driver_nl80211_data *drv = bss->drv; 10546 drv->allow_p2p_device = 1; 10547 } 10548#endif /* CONFIG_P2P */ 10549 10550 if (os_strstr(param, "use_monitor=1")) { 10551 struct i802_bss *bss = priv; 10552 struct wpa_driver_nl80211_data *drv = bss->drv; 10553 drv->use_monitor = 1; 10554 } 10555 10556 if (os_strstr(param, "force_connect_cmd=1")) { 10557 struct i802_bss *bss = priv; 10558 struct wpa_driver_nl80211_data *drv = bss->drv; 10559 drv->capa.flags &= ~WPA_DRIVER_FLAGS_SME; 10560 } 10561 10562 if (os_strstr(param, "no_offchannel_tx=1")) { 10563 struct i802_bss *bss = priv; 10564 struct wpa_driver_nl80211_data *drv = bss->drv; 10565 drv->capa.flags &= ~WPA_DRIVER_FLAGS_OFFCHANNEL_TX; 10566 drv->test_use_roc_tx = 1; 10567 } 10568 10569 return 0; 10570} 10571 10572 10573static void * nl80211_global_init(void) 10574{ 10575 struct nl80211_global *global; 10576 struct netlink_config *cfg; 10577 10578 global = os_zalloc(sizeof(*global)); 10579 if (global == NULL) 10580 return NULL; 10581 global->ioctl_sock = -1; 10582 dl_list_init(&global->interfaces); 10583 global->if_add_ifindex = -1; 10584 10585 cfg = os_zalloc(sizeof(*cfg)); 10586 if (cfg == NULL) 10587 goto err; 10588 10589 cfg->ctx = global; 10590 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink; 10591 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink; 10592 global->netlink = netlink_init(cfg); 10593 if (global->netlink == NULL) { 10594 os_free(cfg); 10595 goto err; 10596 } 10597 10598 if (wpa_driver_nl80211_init_nl_global(global) < 0) 10599 goto err; 10600 10601 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0); 10602 if (global->ioctl_sock < 0) { 10603 wpa_printf(MSG_ERROR, "nl80211: socket(PF_INET,SOCK_DGRAM) failed: %s", 10604 strerror(errno)); 10605 goto err; 10606 } 10607 10608 return global; 10609 10610err: 10611 nl80211_global_deinit(global); 10612 return NULL; 10613} 10614 10615 10616static void nl80211_global_deinit(void *priv) 10617{ 10618 struct nl80211_global *global = priv; 10619 if (global == NULL) 10620 return; 10621 if (!dl_list_empty(&global->interfaces)) { 10622 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at " 10623 "nl80211_global_deinit", 10624 dl_list_len(&global->interfaces)); 10625 } 10626 10627 if (global->netlink) 10628 netlink_deinit(global->netlink); 10629 10630 nl_destroy_handles(&global->nl); 10631 10632 if (global->nl_event) 10633 nl80211_destroy_eloop_handle(&global->nl_event); 10634 10635 nl_cb_put(global->nl_cb); 10636 10637 if (global->ioctl_sock >= 0) 10638 close(global->ioctl_sock); 10639 10640 os_free(global); 10641} 10642 10643 10644static const char * nl80211_get_radio_name(void *priv) 10645{ 10646 struct i802_bss *bss = priv; 10647 struct wpa_driver_nl80211_data *drv = bss->drv; 10648 return drv->phyname; 10649} 10650 10651 10652static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid, 10653 const u8 *pmkid) 10654{ 10655 struct nl_msg *msg; 10656 10657 msg = nlmsg_alloc(); 10658 if (!msg) 10659 return -ENOMEM; 10660 10661 nl80211_cmd(bss->drv, msg, 0, cmd); 10662 10663 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 10664 if (pmkid) 10665 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid); 10666 if (bssid) 10667 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); 10668 10669 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 10670 nla_put_failure: 10671 nlmsg_free(msg); 10672 return -ENOBUFS; 10673} 10674 10675 10676static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 10677{ 10678 struct i802_bss *bss = priv; 10679 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid)); 10680 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid); 10681} 10682 10683 10684static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 10685{ 10686 struct i802_bss *bss = priv; 10687 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR, 10688 MAC2STR(bssid)); 10689 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid); 10690} 10691 10692 10693static int nl80211_flush_pmkid(void *priv) 10694{ 10695 struct i802_bss *bss = priv; 10696 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs"); 10697 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL); 10698} 10699 10700 10701static void clean_survey_results(struct survey_results *survey_results) 10702{ 10703 struct freq_survey *survey, *tmp; 10704 10705 if (dl_list_empty(&survey_results->survey_list)) 10706 return; 10707 10708 dl_list_for_each_safe(survey, tmp, &survey_results->survey_list, 10709 struct freq_survey, list) { 10710 dl_list_del(&survey->list); 10711 os_free(survey); 10712 } 10713} 10714 10715 10716static void add_survey(struct nlattr **sinfo, u32 ifidx, 10717 struct dl_list *survey_list) 10718{ 10719 struct freq_survey *survey; 10720 10721 survey = os_zalloc(sizeof(struct freq_survey)); 10722 if (!survey) 10723 return; 10724 10725 survey->ifidx = ifidx; 10726 survey->freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); 10727 survey->filled = 0; 10728 10729 if (sinfo[NL80211_SURVEY_INFO_NOISE]) { 10730 survey->nf = (int8_t) 10731 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 10732 survey->filled |= SURVEY_HAS_NF; 10733 } 10734 10735 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]) { 10736 survey->channel_time = 10737 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]); 10738 survey->filled |= SURVEY_HAS_CHAN_TIME; 10739 } 10740 10741 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]) { 10742 survey->channel_time_busy = 10743 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]); 10744 survey->filled |= SURVEY_HAS_CHAN_TIME_BUSY; 10745 } 10746 10747 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]) { 10748 survey->channel_time_rx = 10749 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]); 10750 survey->filled |= SURVEY_HAS_CHAN_TIME_RX; 10751 } 10752 10753 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]) { 10754 survey->channel_time_tx = 10755 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]); 10756 survey->filled |= SURVEY_HAS_CHAN_TIME_TX; 10757 } 10758 10759 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)", 10760 survey->freq, 10761 survey->nf, 10762 (unsigned long int) survey->channel_time, 10763 (unsigned long int) survey->channel_time_busy, 10764 (unsigned long int) survey->channel_time_tx, 10765 (unsigned long int) survey->channel_time_rx, 10766 survey->filled); 10767 10768 dl_list_add_tail(survey_list, &survey->list); 10769} 10770 10771 10772static int check_survey_ok(struct nlattr **sinfo, u32 surveyed_freq, 10773 unsigned int freq_filter) 10774{ 10775 if (!freq_filter) 10776 return 1; 10777 10778 return freq_filter == surveyed_freq; 10779} 10780 10781 10782static int survey_handler(struct nl_msg *msg, void *arg) 10783{ 10784 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 10785 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 10786 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 10787 struct survey_results *survey_results; 10788 u32 surveyed_freq = 0; 10789 u32 ifidx; 10790 10791 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 10792 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 10793 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 10794 }; 10795 10796 survey_results = (struct survey_results *) arg; 10797 10798 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 10799 genlmsg_attrlen(gnlh, 0), NULL); 10800 10801 if (!tb[NL80211_ATTR_IFINDEX]) 10802 return NL_SKIP; 10803 10804 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 10805 10806 if (!tb[NL80211_ATTR_SURVEY_INFO]) 10807 return NL_SKIP; 10808 10809 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 10810 tb[NL80211_ATTR_SURVEY_INFO], 10811 survey_policy)) 10812 return NL_SKIP; 10813 10814 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) { 10815 wpa_printf(MSG_ERROR, "nl80211: Invalid survey data"); 10816 return NL_SKIP; 10817 } 10818 10819 surveyed_freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); 10820 10821 if (!check_survey_ok(sinfo, surveyed_freq, 10822 survey_results->freq_filter)) 10823 return NL_SKIP; 10824 10825 if (survey_results->freq_filter && 10826 survey_results->freq_filter != surveyed_freq) { 10827 wpa_printf(MSG_EXCESSIVE, "nl80211: Ignoring survey data for freq %d MHz", 10828 surveyed_freq); 10829 return NL_SKIP; 10830 } 10831 10832 add_survey(sinfo, ifidx, &survey_results->survey_list); 10833 10834 return NL_SKIP; 10835} 10836 10837 10838static int wpa_driver_nl80211_get_survey(void *priv, unsigned int freq) 10839{ 10840 struct i802_bss *bss = priv; 10841 struct wpa_driver_nl80211_data *drv = bss->drv; 10842 struct nl_msg *msg; 10843 int err = -ENOBUFS; 10844 union wpa_event_data data; 10845 struct survey_results *survey_results; 10846 10847 os_memset(&data, 0, sizeof(data)); 10848 survey_results = &data.survey_results; 10849 10850 dl_list_init(&survey_results->survey_list); 10851 10852 msg = nlmsg_alloc(); 10853 if (!msg) 10854 goto nla_put_failure; 10855 10856 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 10857 10858 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10859 10860 if (freq) 10861 data.survey_results.freq_filter = freq; 10862 10863 do { 10864 wpa_printf(MSG_DEBUG, "nl80211: Fetch survey data"); 10865 err = send_and_recv_msgs(drv, msg, survey_handler, 10866 survey_results); 10867 } while (err > 0); 10868 10869 if (err) { 10870 wpa_printf(MSG_ERROR, "nl80211: Failed to process survey data"); 10871 goto out_clean; 10872 } 10873 10874 wpa_supplicant_event(drv->ctx, EVENT_SURVEY, &data); 10875 10876out_clean: 10877 clean_survey_results(survey_results); 10878nla_put_failure: 10879 return err; 10880} 10881 10882 10883static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck, 10884 const u8 *replay_ctr) 10885{ 10886 struct i802_bss *bss = priv; 10887 struct wpa_driver_nl80211_data *drv = bss->drv; 10888 struct nlattr *replay_nested; 10889 struct nl_msg *msg; 10890 10891 msg = nlmsg_alloc(); 10892 if (!msg) 10893 return; 10894 10895 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD); 10896 10897 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10898 10899 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); 10900 if (!replay_nested) 10901 goto nla_put_failure; 10902 10903 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek); 10904 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck); 10905 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN, 10906 replay_ctr); 10907 10908 nla_nest_end(msg, replay_nested); 10909 10910 send_and_recv_msgs(drv, msg, NULL, NULL); 10911 return; 10912 nla_put_failure: 10913 nlmsg_free(msg); 10914} 10915 10916 10917static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr, 10918 const u8 *addr, int qos) 10919{ 10920 /* send data frame to poll STA and check whether 10921 * this frame is ACKed */ 10922 struct { 10923 struct ieee80211_hdr hdr; 10924 u16 qos_ctl; 10925 } STRUCT_PACKED nulldata; 10926 size_t size; 10927 10928 /* Send data frame to poll STA and check whether this frame is ACKed */ 10929 10930 os_memset(&nulldata, 0, sizeof(nulldata)); 10931 10932 if (qos) { 10933 nulldata.hdr.frame_control = 10934 IEEE80211_FC(WLAN_FC_TYPE_DATA, 10935 WLAN_FC_STYPE_QOS_NULL); 10936 size = sizeof(nulldata); 10937 } else { 10938 nulldata.hdr.frame_control = 10939 IEEE80211_FC(WLAN_FC_TYPE_DATA, 10940 WLAN_FC_STYPE_NULLFUNC); 10941 size = sizeof(struct ieee80211_hdr); 10942 } 10943 10944 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS); 10945 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN); 10946 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 10947 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 10948 10949 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0, 0, 0, 10950 0, 0) < 0) 10951 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to " 10952 "send poll frame"); 10953} 10954 10955static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr, 10956 int qos) 10957{ 10958 struct i802_bss *bss = priv; 10959 struct wpa_driver_nl80211_data *drv = bss->drv; 10960 struct nl_msg *msg; 10961 10962 if (!drv->poll_command_supported) { 10963 nl80211_send_null_frame(bss, own_addr, addr, qos); 10964 return; 10965 } 10966 10967 msg = nlmsg_alloc(); 10968 if (!msg) 10969 return; 10970 10971 nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT); 10972 10973 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10974 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 10975 10976 send_and_recv_msgs(drv, msg, NULL, NULL); 10977 return; 10978 nla_put_failure: 10979 nlmsg_free(msg); 10980} 10981 10982 10983static int nl80211_set_power_save(struct i802_bss *bss, int enabled) 10984{ 10985 struct nl_msg *msg; 10986 10987 msg = nlmsg_alloc(); 10988 if (!msg) 10989 return -ENOMEM; 10990 10991 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE); 10992 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10993 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, 10994 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED); 10995 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 10996nla_put_failure: 10997 nlmsg_free(msg); 10998 return -ENOBUFS; 10999} 11000 11001 11002static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps, 11003 int ctwindow) 11004{ 11005 struct i802_bss *bss = priv; 11006 11007 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d " 11008 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow); 11009 11010 if (opp_ps != -1 || ctwindow != -1) { 11011#ifdef ANDROID_P2P 11012 wpa_driver_set_p2p_ps(priv, legacy_ps, opp_ps, ctwindow); 11013#else /* ANDROID_P2P */ 11014 return -1; /* Not yet supported */ 11015#endif /* ANDROID_P2P */ 11016 } 11017 11018 if (legacy_ps == -1) 11019 return 0; 11020 if (legacy_ps != 0 && legacy_ps != 1) 11021 return -1; /* Not yet supported */ 11022 11023 return nl80211_set_power_save(bss, legacy_ps); 11024} 11025 11026 11027static int nl80211_start_radar_detection(void *priv, 11028 struct hostapd_freq_params *freq) 11029{ 11030 struct i802_bss *bss = priv; 11031 struct wpa_driver_nl80211_data *drv = bss->drv; 11032 struct nl_msg *msg; 11033 int ret; 11034 11035 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)", 11036 freq->freq, freq->ht_enabled, freq->vht_enabled, 11037 freq->bandwidth, freq->center_freq1, freq->center_freq2); 11038 11039 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_RADAR)) { 11040 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support radar " 11041 "detection"); 11042 return -1; 11043 } 11044 11045 msg = nlmsg_alloc(); 11046 if (!msg) 11047 return -1; 11048 11049 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_RADAR_DETECT); 11050 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11051 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); 11052 11053 if (freq->vht_enabled) { 11054 switch (freq->bandwidth) { 11055 case 20: 11056 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 11057 NL80211_CHAN_WIDTH_20); 11058 break; 11059 case 40: 11060 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 11061 NL80211_CHAN_WIDTH_40); 11062 break; 11063 case 80: 11064 if (freq->center_freq2) 11065 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 11066 NL80211_CHAN_WIDTH_80P80); 11067 else 11068 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 11069 NL80211_CHAN_WIDTH_80); 11070 break; 11071 case 160: 11072 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 11073 NL80211_CHAN_WIDTH_160); 11074 break; 11075 default: 11076 return -1; 11077 } 11078 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); 11079 if (freq->center_freq2) 11080 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, 11081 freq->center_freq2); 11082 } else if (freq->ht_enabled) { 11083 switch (freq->sec_channel_offset) { 11084 case -1: 11085 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 11086 NL80211_CHAN_HT40MINUS); 11087 break; 11088 case 1: 11089 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 11090 NL80211_CHAN_HT40PLUS); 11091 break; 11092 default: 11093 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 11094 NL80211_CHAN_HT20); 11095 break; 11096 } 11097 } 11098 11099 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 11100 if (ret == 0) 11101 return 0; 11102 wpa_printf(MSG_DEBUG, "nl80211: Failed to start radar detection: " 11103 "%d (%s)", ret, strerror(-ret)); 11104nla_put_failure: 11105 return -1; 11106} 11107 11108#ifdef CONFIG_TDLS 11109 11110static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code, 11111 u8 dialog_token, u16 status_code, 11112 const u8 *buf, size_t len) 11113{ 11114 struct i802_bss *bss = priv; 11115 struct wpa_driver_nl80211_data *drv = bss->drv; 11116 struct nl_msg *msg; 11117 11118 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 11119 return -EOPNOTSUPP; 11120 11121 if (!dst) 11122 return -EINVAL; 11123 11124 msg = nlmsg_alloc(); 11125 if (!msg) 11126 return -ENOMEM; 11127 11128 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT); 11129 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11130 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); 11131 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code); 11132 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token); 11133 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code); 11134 NLA_PUT(msg, NL80211_ATTR_IE, len, buf); 11135 11136 return send_and_recv_msgs(drv, msg, NULL, NULL); 11137 11138nla_put_failure: 11139 nlmsg_free(msg); 11140 return -ENOBUFS; 11141} 11142 11143 11144static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer) 11145{ 11146 struct i802_bss *bss = priv; 11147 struct wpa_driver_nl80211_data *drv = bss->drv; 11148 struct nl_msg *msg; 11149 enum nl80211_tdls_operation nl80211_oper; 11150 11151 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 11152 return -EOPNOTSUPP; 11153 11154 switch (oper) { 11155 case TDLS_DISCOVERY_REQ: 11156 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ; 11157 break; 11158 case TDLS_SETUP: 11159 nl80211_oper = NL80211_TDLS_SETUP; 11160 break; 11161 case TDLS_TEARDOWN: 11162 nl80211_oper = NL80211_TDLS_TEARDOWN; 11163 break; 11164 case TDLS_ENABLE_LINK: 11165 nl80211_oper = NL80211_TDLS_ENABLE_LINK; 11166 break; 11167 case TDLS_DISABLE_LINK: 11168 nl80211_oper = NL80211_TDLS_DISABLE_LINK; 11169 break; 11170 case TDLS_ENABLE: 11171 return 0; 11172 case TDLS_DISABLE: 11173 return 0; 11174 default: 11175 return -EINVAL; 11176 } 11177 11178 msg = nlmsg_alloc(); 11179 if (!msg) 11180 return -ENOMEM; 11181 11182 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER); 11183 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper); 11184 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11185 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer); 11186 11187 return send_and_recv_msgs(drv, msg, NULL, NULL); 11188 11189nla_put_failure: 11190 nlmsg_free(msg); 11191 return -ENOBUFS; 11192} 11193 11194#endif /* CONFIG TDLS */ 11195 11196 11197#ifdef ANDROID 11198 11199typedef struct android_wifi_priv_cmd { 11200 char *buf; 11201 int used_len; 11202 int total_len; 11203} android_wifi_priv_cmd; 11204 11205static int drv_errors = 0; 11206 11207static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv) 11208{ 11209 drv_errors++; 11210 if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) { 11211 drv_errors = 0; 11212 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED"); 11213 } 11214} 11215 11216 11217static int android_priv_cmd(struct i802_bss *bss, const char *cmd) 11218{ 11219 struct wpa_driver_nl80211_data *drv = bss->drv; 11220 struct ifreq ifr; 11221 android_wifi_priv_cmd priv_cmd; 11222 char buf[MAX_DRV_CMD_SIZE]; 11223 int ret; 11224 11225 os_memset(&ifr, 0, sizeof(ifr)); 11226 os_memset(&priv_cmd, 0, sizeof(priv_cmd)); 11227 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 11228 11229 os_memset(buf, 0, sizeof(buf)); 11230 os_strlcpy(buf, cmd, sizeof(buf)); 11231 11232 priv_cmd.buf = buf; 11233 priv_cmd.used_len = sizeof(buf); 11234 priv_cmd.total_len = sizeof(buf); 11235 ifr.ifr_data = &priv_cmd; 11236 11237 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 11238 if (ret < 0) { 11239 wpa_printf(MSG_ERROR, "%s: failed to issue private commands", 11240 __func__); 11241 wpa_driver_send_hang_msg(drv); 11242 return ret; 11243 } 11244 11245 drv_errors = 0; 11246 return 0; 11247} 11248 11249 11250static int android_pno_start(struct i802_bss *bss, 11251 struct wpa_driver_scan_params *params) 11252{ 11253 struct wpa_driver_nl80211_data *drv = bss->drv; 11254 struct ifreq ifr; 11255 android_wifi_priv_cmd priv_cmd; 11256 int ret = 0, i = 0, bp; 11257 char buf[WEXT_PNO_MAX_COMMAND_SIZE]; 11258 11259 bp = WEXT_PNOSETUP_HEADER_SIZE; 11260 os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp); 11261 buf[bp++] = WEXT_PNO_TLV_PREFIX; 11262 buf[bp++] = WEXT_PNO_TLV_VERSION; 11263 buf[bp++] = WEXT_PNO_TLV_SUBVERSION; 11264 buf[bp++] = WEXT_PNO_TLV_RESERVED; 11265 11266 while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) { 11267 /* Check that there is enough space needed for 1 more SSID, the 11268 * other sections and null termination */ 11269 if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN + 11270 WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf)) 11271 break; 11272 wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan", 11273 params->ssids[i].ssid, 11274 params->ssids[i].ssid_len); 11275 buf[bp++] = WEXT_PNO_SSID_SECTION; 11276 buf[bp++] = params->ssids[i].ssid_len; 11277 os_memcpy(&buf[bp], params->ssids[i].ssid, 11278 params->ssids[i].ssid_len); 11279 bp += params->ssids[i].ssid_len; 11280 i++; 11281 } 11282 11283 buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION; 11284 os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x", 11285 WEXT_PNO_SCAN_INTERVAL); 11286 bp += WEXT_PNO_SCAN_INTERVAL_LENGTH; 11287 11288 buf[bp++] = WEXT_PNO_REPEAT_SECTION; 11289 os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x", 11290 WEXT_PNO_REPEAT); 11291 bp += WEXT_PNO_REPEAT_LENGTH; 11292 11293 buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION; 11294 os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x", 11295 WEXT_PNO_MAX_REPEAT); 11296 bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1; 11297 11298 memset(&ifr, 0, sizeof(ifr)); 11299 memset(&priv_cmd, 0, sizeof(priv_cmd)); 11300 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 11301 11302 priv_cmd.buf = buf; 11303 priv_cmd.used_len = bp; 11304 priv_cmd.total_len = bp; 11305 ifr.ifr_data = &priv_cmd; 11306 11307 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 11308 11309 if (ret < 0) { 11310 wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d", 11311 ret); 11312 wpa_driver_send_hang_msg(drv); 11313 return ret; 11314 } 11315 11316 drv_errors = 0; 11317 11318 return android_priv_cmd(bss, "PNOFORCE 1"); 11319} 11320 11321 11322static int android_pno_stop(struct i802_bss *bss) 11323{ 11324 return android_priv_cmd(bss, "PNOFORCE 0"); 11325} 11326 11327#endif /* ANDROID */ 11328 11329 11330static int driver_nl80211_set_key(const char *ifname, void *priv, 11331 enum wpa_alg alg, const u8 *addr, 11332 int key_idx, int set_tx, 11333 const u8 *seq, size_t seq_len, 11334 const u8 *key, size_t key_len) 11335{ 11336 struct i802_bss *bss = priv; 11337 return wpa_driver_nl80211_set_key(ifname, bss, alg, addr, key_idx, 11338 set_tx, seq, seq_len, key, key_len); 11339} 11340 11341 11342static int driver_nl80211_scan2(void *priv, 11343 struct wpa_driver_scan_params *params) 11344{ 11345 struct i802_bss *bss = priv; 11346 return wpa_driver_nl80211_scan(bss, params); 11347} 11348 11349 11350static int driver_nl80211_deauthenticate(void *priv, const u8 *addr, 11351 int reason_code) 11352{ 11353 struct i802_bss *bss = priv; 11354 return wpa_driver_nl80211_deauthenticate(bss, addr, reason_code); 11355} 11356 11357 11358static int driver_nl80211_authenticate(void *priv, 11359 struct wpa_driver_auth_params *params) 11360{ 11361 struct i802_bss *bss = priv; 11362 return wpa_driver_nl80211_authenticate(bss, params); 11363} 11364 11365 11366static void driver_nl80211_deinit(void *priv) 11367{ 11368 struct i802_bss *bss = priv; 11369 wpa_driver_nl80211_deinit(bss); 11370} 11371 11372 11373static int driver_nl80211_if_remove(void *priv, enum wpa_driver_if_type type, 11374 const char *ifname) 11375{ 11376 struct i802_bss *bss = priv; 11377 return wpa_driver_nl80211_if_remove(bss, type, ifname); 11378} 11379 11380 11381static int driver_nl80211_send_mlme(void *priv, const u8 *data, 11382 size_t data_len, int noack) 11383{ 11384 struct i802_bss *bss = priv; 11385 return wpa_driver_nl80211_send_mlme(bss, data, data_len, noack, 11386 0, 0, 0, 0); 11387} 11388 11389 11390static int driver_nl80211_sta_remove(void *priv, const u8 *addr) 11391{ 11392 struct i802_bss *bss = priv; 11393 return wpa_driver_nl80211_sta_remove(bss, addr); 11394} 11395 11396 11397static int driver_nl80211_set_sta_vlan(void *priv, const u8 *addr, 11398 const char *ifname, int vlan_id) 11399{ 11400 struct i802_bss *bss = priv; 11401 return i802_set_sta_vlan(bss, addr, ifname, vlan_id); 11402} 11403 11404 11405static int driver_nl80211_read_sta_data(void *priv, 11406 struct hostap_sta_driver_data *data, 11407 const u8 *addr) 11408{ 11409 struct i802_bss *bss = priv; 11410 return i802_read_sta_data(bss, data, addr); 11411} 11412 11413 11414static int driver_nl80211_send_action(void *priv, unsigned int freq, 11415 unsigned int wait_time, 11416 const u8 *dst, const u8 *src, 11417 const u8 *bssid, 11418 const u8 *data, size_t data_len, 11419 int no_cck) 11420{ 11421 struct i802_bss *bss = priv; 11422 return wpa_driver_nl80211_send_action(bss, freq, wait_time, dst, src, 11423 bssid, data, data_len, no_cck); 11424} 11425 11426 11427static int driver_nl80211_probe_req_report(void *priv, int report) 11428{ 11429 struct i802_bss *bss = priv; 11430 return wpa_driver_nl80211_probe_req_report(bss, report); 11431} 11432 11433 11434static int wpa_driver_nl80211_update_ft_ies(void *priv, const u8 *md, 11435 const u8 *ies, size_t ies_len) 11436{ 11437 int ret; 11438 struct nl_msg *msg; 11439 struct i802_bss *bss = priv; 11440 struct wpa_driver_nl80211_data *drv = bss->drv; 11441 u16 mdid = WPA_GET_LE16(md); 11442 11443 msg = nlmsg_alloc(); 11444 if (!msg) 11445 return -ENOMEM; 11446 11447 wpa_printf(MSG_DEBUG, "nl80211: Updating FT IEs"); 11448 nl80211_cmd(drv, msg, 0, NL80211_CMD_UPDATE_FT_IES); 11449 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11450 NLA_PUT(msg, NL80211_ATTR_IE, ies_len, ies); 11451 NLA_PUT_U16(msg, NL80211_ATTR_MDID, mdid); 11452 11453 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 11454 if (ret) { 11455 wpa_printf(MSG_DEBUG, "nl80211: update_ft_ies failed " 11456 "err=%d (%s)", ret, strerror(-ret)); 11457 } 11458 11459 return ret; 11460 11461nla_put_failure: 11462 nlmsg_free(msg); 11463 return -ENOBUFS; 11464} 11465 11466 11467const u8 * wpa_driver_nl80211_get_macaddr(void *priv) 11468{ 11469 struct i802_bss *bss = priv; 11470 struct wpa_driver_nl80211_data *drv = bss->drv; 11471 11472 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) 11473 return NULL; 11474 11475 return bss->addr; 11476} 11477 11478 11479static const char * scan_state_str(enum scan_states scan_state) 11480{ 11481 switch (scan_state) { 11482 case NO_SCAN: 11483 return "NO_SCAN"; 11484 case SCAN_REQUESTED: 11485 return "SCAN_REQUESTED"; 11486 case SCAN_STARTED: 11487 return "SCAN_STARTED"; 11488 case SCAN_COMPLETED: 11489 return "SCAN_COMPLETED"; 11490 case SCAN_ABORTED: 11491 return "SCAN_ABORTED"; 11492 case SCHED_SCAN_STARTED: 11493 return "SCHED_SCAN_STARTED"; 11494 case SCHED_SCAN_STOPPED: 11495 return "SCHED_SCAN_STOPPED"; 11496 case SCHED_SCAN_RESULTS: 11497 return "SCHED_SCAN_RESULTS"; 11498 } 11499 11500 return "??"; 11501} 11502 11503 11504static int wpa_driver_nl80211_status(void *priv, char *buf, size_t buflen) 11505{ 11506 struct i802_bss *bss = priv; 11507 struct wpa_driver_nl80211_data *drv = bss->drv; 11508 int res; 11509 char *pos, *end; 11510 11511 pos = buf; 11512 end = buf + buflen; 11513 11514 res = os_snprintf(pos, end - pos, 11515 "ifindex=%d\n" 11516 "ifname=%s\n" 11517 "brname=%s\n" 11518 "addr=" MACSTR "\n" 11519 "freq=%d\n" 11520 "%s%s%s%s%s", 11521 bss->ifindex, 11522 bss->ifname, 11523 bss->brname, 11524 MAC2STR(bss->addr), 11525 bss->freq, 11526 bss->beacon_set ? "beacon_set=1\n" : "", 11527 bss->added_if_into_bridge ? 11528 "added_if_into_bridge=1\n" : "", 11529 bss->added_bridge ? "added_bridge=1\n" : "", 11530 bss->in_deinit ? "in_deinit=1\n" : "", 11531 bss->if_dynamic ? "if_dynamic=1\n" : ""); 11532 if (res < 0 || res >= end - pos) 11533 return pos - buf; 11534 pos += res; 11535 11536 if (bss->wdev_id_set) { 11537 res = os_snprintf(pos, end - pos, "wdev_id=%llu\n", 11538 (unsigned long long) bss->wdev_id); 11539 if (res < 0 || res >= end - pos) 11540 return pos - buf; 11541 pos += res; 11542 } 11543 11544 res = os_snprintf(pos, end - pos, 11545 "phyname=%s\n" 11546 "drv_ifindex=%d\n" 11547 "operstate=%d\n" 11548 "scan_state=%s\n" 11549 "auth_bssid=" MACSTR "\n" 11550 "auth_attempt_bssid=" MACSTR "\n" 11551 "bssid=" MACSTR "\n" 11552 "prev_bssid=" MACSTR "\n" 11553 "associated=%d\n" 11554 "assoc_freq=%u\n" 11555 "monitor_sock=%d\n" 11556 "monitor_ifidx=%d\n" 11557 "monitor_refcount=%d\n" 11558 "last_mgmt_freq=%u\n" 11559 "eapol_tx_sock=%d\n" 11560 "%s%s%s%s%s%s%s%s%s%s%s%s%s", 11561 drv->phyname, 11562 drv->ifindex, 11563 drv->operstate, 11564 scan_state_str(drv->scan_state), 11565 MAC2STR(drv->auth_bssid), 11566 MAC2STR(drv->auth_attempt_bssid), 11567 MAC2STR(drv->bssid), 11568 MAC2STR(drv->prev_bssid), 11569 drv->associated, 11570 drv->assoc_freq, 11571 drv->monitor_sock, 11572 drv->monitor_ifidx, 11573 drv->monitor_refcount, 11574 drv->last_mgmt_freq, 11575 drv->eapol_tx_sock, 11576 drv->ignore_if_down_event ? 11577 "ignore_if_down_event=1\n" : "", 11578 drv->scan_complete_events ? 11579 "scan_complete_events=1\n" : "", 11580 drv->disabled_11b_rates ? 11581 "disabled_11b_rates=1\n" : "", 11582 drv->pending_remain_on_chan ? 11583 "pending_remain_on_chan=1\n" : "", 11584 drv->in_interface_list ? "in_interface_list=1\n" : "", 11585 drv->device_ap_sme ? "device_ap_sme=1\n" : "", 11586 drv->poll_command_supported ? 11587 "poll_command_supported=1\n" : "", 11588 drv->data_tx_status ? "data_tx_status=1\n" : "", 11589 drv->scan_for_auth ? "scan_for_auth=1\n" : "", 11590 drv->retry_auth ? "retry_auth=1\n" : "", 11591 drv->use_monitor ? "use_monitor=1\n" : "", 11592 drv->ignore_next_local_disconnect ? 11593 "ignore_next_local_disconnect=1\n" : "", 11594 drv->allow_p2p_device ? "allow_p2p_device=1\n" : ""); 11595 if (res < 0 || res >= end - pos) 11596 return pos - buf; 11597 pos += res; 11598 11599 if (drv->has_capability) { 11600 res = os_snprintf(pos, end - pos, 11601 "capa.key_mgmt=0x%x\n" 11602 "capa.enc=0x%x\n" 11603 "capa.auth=0x%x\n" 11604 "capa.flags=0x%x\n" 11605 "capa.max_scan_ssids=%d\n" 11606 "capa.max_sched_scan_ssids=%d\n" 11607 "capa.sched_scan_supported=%d\n" 11608 "capa.max_match_sets=%d\n" 11609 "capa.max_remain_on_chan=%u\n" 11610 "capa.max_stations=%u\n" 11611 "capa.probe_resp_offloads=0x%x\n" 11612 "capa.max_acl_mac_addrs=%u\n" 11613 "capa.num_multichan_concurrent=%u\n", 11614 drv->capa.key_mgmt, 11615 drv->capa.enc, 11616 drv->capa.auth, 11617 drv->capa.flags, 11618 drv->capa.max_scan_ssids, 11619 drv->capa.max_sched_scan_ssids, 11620 drv->capa.sched_scan_supported, 11621 drv->capa.max_match_sets, 11622 drv->capa.max_remain_on_chan, 11623 drv->capa.max_stations, 11624 drv->capa.probe_resp_offloads, 11625 drv->capa.max_acl_mac_addrs, 11626 drv->capa.num_multichan_concurrent); 11627 if (res < 0 || res >= end - pos) 11628 return pos - buf; 11629 pos += res; 11630 } 11631 11632 return pos - buf; 11633} 11634 11635 11636static int set_beacon_data(struct nl_msg *msg, struct beacon_data *settings) 11637{ 11638 if (settings->head) 11639 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, 11640 settings->head_len, settings->head); 11641 11642 if (settings->tail) 11643 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, 11644 settings->tail_len, settings->tail); 11645 11646 if (settings->beacon_ies) 11647 NLA_PUT(msg, NL80211_ATTR_IE, 11648 settings->beacon_ies_len, settings->beacon_ies); 11649 11650 if (settings->proberesp_ies) 11651 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, 11652 settings->proberesp_ies_len, settings->proberesp_ies); 11653 11654 if (settings->assocresp_ies) 11655 NLA_PUT(msg, 11656 NL80211_ATTR_IE_ASSOC_RESP, 11657 settings->assocresp_ies_len, settings->assocresp_ies); 11658 11659 if (settings->probe_resp) 11660 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, 11661 settings->probe_resp_len, settings->probe_resp); 11662 11663 return 0; 11664 11665nla_put_failure: 11666 return -ENOBUFS; 11667} 11668 11669 11670static int nl80211_switch_channel(void *priv, struct csa_settings *settings) 11671{ 11672 struct nl_msg *msg; 11673 struct i802_bss *bss = priv; 11674 struct wpa_driver_nl80211_data *drv = bss->drv; 11675 struct nlattr *beacon_csa; 11676 int ret = -ENOBUFS; 11677 11678 wpa_printf(MSG_DEBUG, "nl80211: Channel switch request (cs_count=%u block_tx=%u freq=%d width=%d cf1=%d cf2=%d)", 11679 settings->cs_count, settings->block_tx, 11680 settings->freq_params.freq, settings->freq_params.bandwidth, 11681 settings->freq_params.center_freq1, 11682 settings->freq_params.center_freq2); 11683 11684 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_AP_CSA)) { 11685 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support channel switch command"); 11686 return -EOPNOTSUPP; 11687 } 11688 11689 if ((drv->nlmode != NL80211_IFTYPE_AP) && 11690 (drv->nlmode != NL80211_IFTYPE_P2P_GO)) 11691 return -EOPNOTSUPP; 11692 11693 /* check settings validity */ 11694 if (!settings->beacon_csa.tail || 11695 ((settings->beacon_csa.tail_len <= 11696 settings->counter_offset_beacon) || 11697 (settings->beacon_csa.tail[settings->counter_offset_beacon] != 11698 settings->cs_count))) 11699 return -EINVAL; 11700 11701 if (settings->beacon_csa.probe_resp && 11702 ((settings->beacon_csa.probe_resp_len <= 11703 settings->counter_offset_presp) || 11704 (settings->beacon_csa.probe_resp[settings->counter_offset_presp] != 11705 settings->cs_count))) 11706 return -EINVAL; 11707 11708 msg = nlmsg_alloc(); 11709 if (!msg) 11710 return -ENOMEM; 11711 11712 nl80211_cmd(drv, msg, 0, NL80211_CMD_CHANNEL_SWITCH); 11713 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11714 NLA_PUT_U32(msg, NL80211_ATTR_CH_SWITCH_COUNT, settings->cs_count); 11715 ret = nl80211_put_freq_params(msg, &settings->freq_params); 11716 if (ret) 11717 goto error; 11718 11719 if (settings->block_tx) 11720 NLA_PUT_FLAG(msg, NL80211_ATTR_CH_SWITCH_BLOCK_TX); 11721 11722 /* beacon_after params */ 11723 ret = set_beacon_data(msg, &settings->beacon_after); 11724 if (ret) 11725 goto error; 11726 11727 /* beacon_csa params */ 11728 beacon_csa = nla_nest_start(msg, NL80211_ATTR_CSA_IES); 11729 if (!beacon_csa) 11730 goto nla_put_failure; 11731 11732 ret = set_beacon_data(msg, &settings->beacon_csa); 11733 if (ret) 11734 goto error; 11735 11736 NLA_PUT_U16(msg, NL80211_ATTR_CSA_C_OFF_BEACON, 11737 settings->counter_offset_beacon); 11738 11739 if (settings->beacon_csa.probe_resp) 11740 NLA_PUT_U16(msg, NL80211_ATTR_CSA_C_OFF_PRESP, 11741 settings->counter_offset_presp); 11742 11743 nla_nest_end(msg, beacon_csa); 11744 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 11745 if (ret) { 11746 wpa_printf(MSG_DEBUG, "nl80211: switch_channel failed err=%d (%s)", 11747 ret, strerror(-ret)); 11748 } 11749 return ret; 11750 11751nla_put_failure: 11752 ret = -ENOBUFS; 11753error: 11754 nlmsg_free(msg); 11755 wpa_printf(MSG_DEBUG, "nl80211: Could not build channel switch request"); 11756 return ret; 11757} 11758 11759 11760#ifdef CONFIG_TESTING_OPTIONS 11761static int cmd_reply_handler(struct nl_msg *msg, void *arg) 11762{ 11763 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 11764 struct wpabuf *buf = arg; 11765 11766 if (!buf) 11767 return NL_SKIP; 11768 11769 if ((size_t) genlmsg_attrlen(gnlh, 0) > wpabuf_tailroom(buf)) { 11770 wpa_printf(MSG_INFO, "nl80211: insufficient buffer space for reply"); 11771 return NL_SKIP; 11772 } 11773 11774 wpabuf_put_data(buf, genlmsg_attrdata(gnlh, 0), 11775 genlmsg_attrlen(gnlh, 0)); 11776 11777 return NL_SKIP; 11778} 11779#endif /* CONFIG_TESTING_OPTIONS */ 11780 11781 11782static int vendor_reply_handler(struct nl_msg *msg, void *arg) 11783{ 11784 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 11785 struct nlattr *nl_vendor_reply, *nl; 11786 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 11787 struct wpabuf *buf = arg; 11788 int rem; 11789 11790 if (!buf) 11791 return NL_SKIP; 11792 11793 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 11794 genlmsg_attrlen(gnlh, 0), NULL); 11795 nl_vendor_reply = tb[NL80211_ATTR_VENDOR_DATA]; 11796 11797 if (!nl_vendor_reply) 11798 return NL_SKIP; 11799 11800 if ((size_t) nla_len(nl_vendor_reply) > wpabuf_tailroom(buf)) { 11801 wpa_printf(MSG_INFO, "nl80211: Vendor command: insufficient buffer space for reply"); 11802 return NL_SKIP; 11803 } 11804 11805 nla_for_each_nested(nl, nl_vendor_reply, rem) { 11806 wpabuf_put_data(buf, nla_data(nl), nla_len(nl)); 11807 } 11808 11809 return NL_SKIP; 11810} 11811 11812 11813static int nl80211_vendor_cmd(void *priv, unsigned int vendor_id, 11814 unsigned int subcmd, const u8 *data, 11815 size_t data_len, struct wpabuf *buf) 11816{ 11817 struct i802_bss *bss = priv; 11818 struct wpa_driver_nl80211_data *drv = bss->drv; 11819 struct nl_msg *msg; 11820 int ret; 11821 11822 msg = nlmsg_alloc(); 11823 if (!msg) 11824 return -ENOMEM; 11825 11826#ifdef CONFIG_TESTING_OPTIONS 11827 if (vendor_id == 0xffffffff) { 11828 nl80211_cmd(drv, msg, 0, subcmd); 11829 if (nlmsg_append(msg, (void *) data, data_len, NLMSG_ALIGNTO) < 11830 0) 11831 goto nla_put_failure; 11832 ret = send_and_recv_msgs(drv, msg, cmd_reply_handler, buf); 11833 if (ret) 11834 wpa_printf(MSG_DEBUG, "nl80211: command failed err=%d", 11835 ret); 11836 return ret; 11837 } 11838#endif /* CONFIG_TESTING_OPTIONS */ 11839 11840 nl80211_cmd(drv, msg, 0, NL80211_CMD_VENDOR); 11841 if (nl80211_set_iface_id(msg, bss) < 0) 11842 goto nla_put_failure; 11843 NLA_PUT_U32(msg, NL80211_ATTR_VENDOR_ID, vendor_id); 11844 NLA_PUT_U32(msg, NL80211_ATTR_VENDOR_SUBCMD, subcmd); 11845 if (data) 11846 NLA_PUT(msg, NL80211_ATTR_VENDOR_DATA, data_len, data); 11847 11848 ret = send_and_recv_msgs(drv, msg, vendor_reply_handler, buf); 11849 if (ret) 11850 wpa_printf(MSG_DEBUG, "nl80211: vendor command failed err=%d", 11851 ret); 11852 return ret; 11853 11854nla_put_failure: 11855 nlmsg_free(msg); 11856 return -ENOBUFS; 11857} 11858 11859 11860static int nl80211_set_qos_map(void *priv, const u8 *qos_map_set, 11861 u8 qos_map_set_len) 11862{ 11863 struct i802_bss *bss = priv; 11864 struct wpa_driver_nl80211_data *drv = bss->drv; 11865 struct nl_msg *msg; 11866 int ret; 11867 11868 msg = nlmsg_alloc(); 11869 if (!msg) 11870 return -ENOMEM; 11871 11872 wpa_hexdump(MSG_DEBUG, "nl80211: Setting QoS Map", 11873 qos_map_set, qos_map_set_len); 11874 11875 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_QOS_MAP); 11876 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11877 NLA_PUT(msg, NL80211_ATTR_QOS_MAP, qos_map_set_len, qos_map_set); 11878 11879 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 11880 if (ret) 11881 wpa_printf(MSG_DEBUG, "nl80211: Setting QoS Map failed"); 11882 11883 return ret; 11884 11885nla_put_failure: 11886 nlmsg_free(msg); 11887 return -ENOBUFS; 11888} 11889 11890 11891const struct wpa_driver_ops wpa_driver_nl80211_ops = { 11892 .name = "nl80211", 11893 .desc = "Linux nl80211/cfg80211", 11894 .get_bssid = wpa_driver_nl80211_get_bssid, 11895 .get_ssid = wpa_driver_nl80211_get_ssid, 11896 .set_key = driver_nl80211_set_key, 11897 .scan2 = driver_nl80211_scan2, 11898 .sched_scan = wpa_driver_nl80211_sched_scan, 11899 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan, 11900 .get_scan_results2 = wpa_driver_nl80211_get_scan_results, 11901 .deauthenticate = driver_nl80211_deauthenticate, 11902 .authenticate = driver_nl80211_authenticate, 11903 .associate = wpa_driver_nl80211_associate, 11904 .global_init = nl80211_global_init, 11905 .global_deinit = nl80211_global_deinit, 11906 .init2 = wpa_driver_nl80211_init, 11907 .deinit = driver_nl80211_deinit, 11908 .get_capa = wpa_driver_nl80211_get_capa, 11909 .set_operstate = wpa_driver_nl80211_set_operstate, 11910 .set_supp_port = wpa_driver_nl80211_set_supp_port, 11911 .set_country = wpa_driver_nl80211_set_country, 11912 .get_country = wpa_driver_nl80211_get_country, 11913 .set_ap = wpa_driver_nl80211_set_ap, 11914 .set_acl = wpa_driver_nl80211_set_acl, 11915 .if_add = wpa_driver_nl80211_if_add, 11916 .if_remove = driver_nl80211_if_remove, 11917 .send_mlme = driver_nl80211_send_mlme, 11918 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data, 11919 .sta_add = wpa_driver_nl80211_sta_add, 11920 .sta_remove = driver_nl80211_sta_remove, 11921 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol, 11922 .sta_set_flags = wpa_driver_nl80211_sta_set_flags, 11923 .hapd_init = i802_init, 11924 .hapd_deinit = i802_deinit, 11925 .set_wds_sta = i802_set_wds_sta, 11926 .get_seqnum = i802_get_seqnum, 11927 .flush = i802_flush, 11928 .get_inact_sec = i802_get_inact_sec, 11929 .sta_clear_stats = i802_sta_clear_stats, 11930 .set_rts = i802_set_rts, 11931 .set_frag = i802_set_frag, 11932 .set_tx_queue_params = i802_set_tx_queue_params, 11933 .set_sta_vlan = driver_nl80211_set_sta_vlan, 11934 .sta_deauth = i802_sta_deauth, 11935 .sta_disassoc = i802_sta_disassoc, 11936 .read_sta_data = driver_nl80211_read_sta_data, 11937 .set_freq = i802_set_freq, 11938 .send_action = driver_nl80211_send_action, 11939 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait, 11940 .remain_on_channel = wpa_driver_nl80211_remain_on_channel, 11941 .cancel_remain_on_channel = 11942 wpa_driver_nl80211_cancel_remain_on_channel, 11943 .probe_req_report = driver_nl80211_probe_req_report, 11944 .deinit_ap = wpa_driver_nl80211_deinit_ap, 11945 .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli, 11946 .resume = wpa_driver_nl80211_resume, 11947 .send_ft_action = nl80211_send_ft_action, 11948 .signal_monitor = nl80211_signal_monitor, 11949 .signal_poll = nl80211_signal_poll, 11950 .send_frame = nl80211_send_frame, 11951 .shared_freq = wpa_driver_nl80211_shared_freq, 11952 .set_param = nl80211_set_param, 11953 .get_radio_name = nl80211_get_radio_name, 11954 .add_pmkid = nl80211_add_pmkid, 11955 .remove_pmkid = nl80211_remove_pmkid, 11956 .flush_pmkid = nl80211_flush_pmkid, 11957 .set_rekey_info = nl80211_set_rekey_info, 11958 .poll_client = nl80211_poll_client, 11959 .set_p2p_powersave = nl80211_set_p2p_powersave, 11960 .start_dfs_cac = nl80211_start_radar_detection, 11961 .stop_ap = wpa_driver_nl80211_stop_ap, 11962#ifdef CONFIG_TDLS 11963 .send_tdls_mgmt = nl80211_send_tdls_mgmt, 11964 .tdls_oper = nl80211_tdls_oper, 11965#endif /* CONFIG_TDLS */ 11966 .update_ft_ies = wpa_driver_nl80211_update_ft_ies, 11967 .get_mac_addr = wpa_driver_nl80211_get_macaddr, 11968 .get_survey = wpa_driver_nl80211_get_survey, 11969 .status = wpa_driver_nl80211_status, 11970 .switch_channel = nl80211_switch_channel, 11971#ifdef ANDROID_P2P 11972 .set_noa = wpa_driver_set_p2p_noa, 11973 .get_noa = wpa_driver_get_p2p_noa, 11974 .set_ap_wps_ie = wpa_driver_set_ap_wps_p2p_ie, 11975#endif /* ANDROID_P2P */ 11976#ifdef ANDROID 11977 .driver_cmd = wpa_driver_nl80211_driver_cmd, 11978#endif /* ANDROID */ 11979 .vendor_cmd = nl80211_vendor_cmd, 11980 .set_qos_map = nl80211_set_qos_map, 11981}; 11982