driver_nl80211.c revision 9866086a955d00e237cc8df3722e7dff75c02532
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 wpa_supplicant_event(drv->ctx, EVENT_SCAN_STARTED, NULL); 2904 break; 2905 case NL80211_CMD_START_SCHED_SCAN: 2906 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan started"); 2907 drv->scan_state = SCHED_SCAN_STARTED; 2908 break; 2909 case NL80211_CMD_SCHED_SCAN_STOPPED: 2910 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan stopped"); 2911 drv->scan_state = SCHED_SCAN_STOPPED; 2912 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL); 2913 break; 2914 case NL80211_CMD_NEW_SCAN_RESULTS: 2915 wpa_dbg(drv->ctx, MSG_DEBUG, 2916 "nl80211: New scan results available"); 2917 drv->scan_state = SCAN_COMPLETED; 2918 drv->scan_complete_events = 1; 2919 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 2920 drv->ctx); 2921 send_scan_event(drv, 0, tb); 2922 break; 2923 case NL80211_CMD_SCHED_SCAN_RESULTS: 2924 wpa_dbg(drv->ctx, MSG_DEBUG, 2925 "nl80211: New sched scan results available"); 2926 drv->scan_state = SCHED_SCAN_RESULTS; 2927 send_scan_event(drv, 0, tb); 2928 break; 2929 case NL80211_CMD_SCAN_ABORTED: 2930 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan aborted"); 2931 drv->scan_state = SCAN_ABORTED; 2932 /* 2933 * Need to indicate that scan results are available in order 2934 * not to make wpa_supplicant stop its scanning. 2935 */ 2936 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 2937 drv->ctx); 2938 send_scan_event(drv, 1, tb); 2939 break; 2940 case NL80211_CMD_AUTHENTICATE: 2941 case NL80211_CMD_ASSOCIATE: 2942 case NL80211_CMD_DEAUTHENTICATE: 2943 case NL80211_CMD_DISASSOCIATE: 2944 case NL80211_CMD_FRAME_TX_STATUS: 2945 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 2946 case NL80211_CMD_UNPROT_DISASSOCIATE: 2947 mlme_event(bss, cmd, tb[NL80211_ATTR_FRAME], 2948 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 2949 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 2950 tb[NL80211_ATTR_COOKIE], 2951 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 2952 break; 2953 case NL80211_CMD_CONNECT: 2954 case NL80211_CMD_ROAM: 2955 mlme_event_connect(drv, cmd, 2956 tb[NL80211_ATTR_STATUS_CODE], 2957 tb[NL80211_ATTR_MAC], 2958 tb[NL80211_ATTR_REQ_IE], 2959 tb[NL80211_ATTR_RESP_IE]); 2960 break; 2961 case NL80211_CMD_CH_SWITCH_NOTIFY: 2962 mlme_event_ch_switch(drv, 2963 tb[NL80211_ATTR_IFINDEX], 2964 tb[NL80211_ATTR_WIPHY_FREQ], 2965 tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE], 2966 tb[NL80211_ATTR_CHANNEL_WIDTH], 2967 tb[NL80211_ATTR_CENTER_FREQ1], 2968 tb[NL80211_ATTR_CENTER_FREQ2]); 2969 break; 2970 case NL80211_CMD_DISCONNECT: 2971 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE], 2972 tb[NL80211_ATTR_MAC], 2973 tb[NL80211_ATTR_DISCONNECTED_BY_AP]); 2974 break; 2975 case NL80211_CMD_MICHAEL_MIC_FAILURE: 2976 mlme_event_michael_mic_failure(bss, tb); 2977 break; 2978 case NL80211_CMD_JOIN_IBSS: 2979 mlme_event_join_ibss(drv, tb); 2980 break; 2981 case NL80211_CMD_REMAIN_ON_CHANNEL: 2982 mlme_event_remain_on_channel(drv, 0, tb); 2983 break; 2984 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL: 2985 mlme_event_remain_on_channel(drv, 1, tb); 2986 break; 2987 case NL80211_CMD_NOTIFY_CQM: 2988 nl80211_cqm_event(drv, tb); 2989 break; 2990 case NL80211_CMD_REG_CHANGE: 2991 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change"); 2992 if (tb[NL80211_ATTR_REG_INITIATOR] == NULL) 2993 break; 2994 os_memset(&data, 0, sizeof(data)); 2995 switch (nla_get_u8(tb[NL80211_ATTR_REG_INITIATOR])) { 2996 case NL80211_REGDOM_SET_BY_CORE: 2997 data.channel_list_changed.initiator = 2998 REGDOM_SET_BY_CORE; 2999 break; 3000 case NL80211_REGDOM_SET_BY_USER: 3001 data.channel_list_changed.initiator = 3002 REGDOM_SET_BY_USER; 3003 break; 3004 case NL80211_REGDOM_SET_BY_DRIVER: 3005 data.channel_list_changed.initiator = 3006 REGDOM_SET_BY_DRIVER; 3007 break; 3008 case NL80211_REGDOM_SET_BY_COUNTRY_IE: 3009 data.channel_list_changed.initiator = 3010 REGDOM_SET_BY_COUNTRY_IE; 3011 break; 3012 default: 3013 wpa_printf(MSG_DEBUG, "nl80211: Unknown reg change initiator %d received", 3014 nla_get_u8(tb[NL80211_ATTR_REG_INITIATOR])); 3015 break; 3016 } 3017 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 3018 &data); 3019 break; 3020 case NL80211_CMD_REG_BEACON_HINT: 3021 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint"); 3022 os_memset(&data, 0, sizeof(data)); 3023 data.channel_list_changed.initiator = REGDOM_BEACON_HINT; 3024 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 3025 &data); 3026 break; 3027 case NL80211_CMD_NEW_STATION: 3028 nl80211_new_station_event(drv, tb); 3029 break; 3030 case NL80211_CMD_DEL_STATION: 3031 nl80211_del_station_event(drv, tb); 3032 break; 3033 case NL80211_CMD_SET_REKEY_OFFLOAD: 3034 nl80211_rekey_offload_event(drv, tb); 3035 break; 3036 case NL80211_CMD_PMKSA_CANDIDATE: 3037 nl80211_pmksa_candidate_event(drv, tb); 3038 break; 3039 case NL80211_CMD_PROBE_CLIENT: 3040 nl80211_client_probe_event(drv, tb); 3041 break; 3042 case NL80211_CMD_TDLS_OPER: 3043 nl80211_tdls_oper_event(drv, tb); 3044 break; 3045 case NL80211_CMD_CONN_FAILED: 3046 nl80211_connect_failed_event(drv, tb); 3047 break; 3048 case NL80211_CMD_FT_EVENT: 3049 mlme_event_ft_event(drv, tb); 3050 break; 3051 case NL80211_CMD_RADAR_DETECT: 3052 nl80211_radar_event(drv, tb); 3053 break; 3054 case NL80211_CMD_STOP_AP: 3055 nl80211_stop_ap(drv, tb); 3056 break; 3057 case NL80211_CMD_VENDOR: 3058 nl80211_vendor_event(drv, tb); 3059 break; 3060 default: 3061 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Ignored unknown event " 3062 "(cmd=%d)", cmd); 3063 break; 3064 } 3065} 3066 3067 3068static int process_drv_event(struct nl_msg *msg, void *arg) 3069{ 3070 struct wpa_driver_nl80211_data *drv = arg; 3071 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3072 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3073 struct i802_bss *bss; 3074 int ifidx = -1; 3075 3076 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3077 genlmsg_attrlen(gnlh, 0), NULL); 3078 3079 if (tb[NL80211_ATTR_IFINDEX]) { 3080 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 3081 3082 for (bss = drv->first_bss; bss; bss = bss->next) 3083 if (ifidx == -1 || ifidx == bss->ifindex) { 3084 do_process_drv_event(bss, gnlh->cmd, tb); 3085 return NL_SKIP; 3086 } 3087 wpa_printf(MSG_DEBUG, 3088 "nl80211: Ignored event (cmd=%d) for foreign interface (ifindex %d)", 3089 gnlh->cmd, ifidx); 3090 } else if (tb[NL80211_ATTR_WDEV]) { 3091 u64 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 3092 wpa_printf(MSG_DEBUG, "nl80211: Process event on P2P device"); 3093 for (bss = drv->first_bss; bss; bss = bss->next) { 3094 if (bss->wdev_id_set && wdev_id == bss->wdev_id) { 3095 do_process_drv_event(bss, gnlh->cmd, tb); 3096 return NL_SKIP; 3097 } 3098 } 3099 wpa_printf(MSG_DEBUG, 3100 "nl80211: Ignored event (cmd=%d) for foreign interface (wdev 0x%llx)", 3101 gnlh->cmd, (long long unsigned int) wdev_id); 3102 } 3103 3104 return NL_SKIP; 3105} 3106 3107 3108static int process_global_event(struct nl_msg *msg, void *arg) 3109{ 3110 struct nl80211_global *global = arg; 3111 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3112 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3113 struct wpa_driver_nl80211_data *drv, *tmp; 3114 int ifidx = -1; 3115 struct i802_bss *bss; 3116 u64 wdev_id = 0; 3117 int wdev_id_set = 0; 3118 3119 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3120 genlmsg_attrlen(gnlh, 0), NULL); 3121 3122 if (tb[NL80211_ATTR_IFINDEX]) 3123 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 3124 else if (tb[NL80211_ATTR_WDEV]) { 3125 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 3126 wdev_id_set = 1; 3127 } 3128 3129 dl_list_for_each_safe(drv, tmp, &global->interfaces, 3130 struct wpa_driver_nl80211_data, list) { 3131 for (bss = drv->first_bss; bss; bss = bss->next) { 3132 if ((ifidx == -1 && !wdev_id_set) || 3133 ifidx == bss->ifindex || 3134 (wdev_id_set && bss->wdev_id_set && 3135 wdev_id == bss->wdev_id)) { 3136 do_process_drv_event(bss, gnlh->cmd, tb); 3137 return NL_SKIP; 3138 } 3139 } 3140 } 3141 3142 return NL_SKIP; 3143} 3144 3145 3146static int process_bss_event(struct nl_msg *msg, void *arg) 3147{ 3148 struct i802_bss *bss = arg; 3149 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3150 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3151 3152 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3153 genlmsg_attrlen(gnlh, 0), NULL); 3154 3155 wpa_printf(MSG_DEBUG, "nl80211: BSS Event %d (%s) received for %s", 3156 gnlh->cmd, nl80211_command_to_string(gnlh->cmd), 3157 bss->ifname); 3158 3159 switch (gnlh->cmd) { 3160 case NL80211_CMD_FRAME: 3161 case NL80211_CMD_FRAME_TX_STATUS: 3162 mlme_event(bss, gnlh->cmd, tb[NL80211_ATTR_FRAME], 3163 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 3164 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 3165 tb[NL80211_ATTR_COOKIE], 3166 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 3167 break; 3168 case NL80211_CMD_UNEXPECTED_FRAME: 3169 nl80211_spurious_frame(bss, tb, 0); 3170 break; 3171 case NL80211_CMD_UNEXPECTED_4ADDR_FRAME: 3172 nl80211_spurious_frame(bss, tb, 1); 3173 break; 3174 default: 3175 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event " 3176 "(cmd=%d)", gnlh->cmd); 3177 break; 3178 } 3179 3180 return NL_SKIP; 3181} 3182 3183 3184static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx, 3185 void *handle) 3186{ 3187 struct nl_cb *cb = eloop_ctx; 3188 int res; 3189 3190 wpa_printf(MSG_MSGDUMP, "nl80211: Event message available"); 3191 3192 res = nl_recvmsgs(handle, cb); 3193 if (res) { 3194 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d", 3195 __func__, res); 3196 } 3197} 3198 3199 3200/** 3201 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain 3202 * @priv: driver_nl80211 private data 3203 * @alpha2_arg: country to which to switch to 3204 * Returns: 0 on success, -1 on failure 3205 * 3206 * This asks nl80211 to set the regulatory domain for given 3207 * country ISO / IEC alpha2. 3208 */ 3209static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg) 3210{ 3211 struct i802_bss *bss = priv; 3212 struct wpa_driver_nl80211_data *drv = bss->drv; 3213 char alpha2[3]; 3214 struct nl_msg *msg; 3215 3216 msg = nlmsg_alloc(); 3217 if (!msg) 3218 return -ENOMEM; 3219 3220 alpha2[0] = alpha2_arg[0]; 3221 alpha2[1] = alpha2_arg[1]; 3222 alpha2[2] = '\0'; 3223 3224 nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG); 3225 3226 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2); 3227 if (send_and_recv_msgs(drv, msg, NULL, NULL)) 3228 return -EINVAL; 3229 return 0; 3230nla_put_failure: 3231 nlmsg_free(msg); 3232 return -EINVAL; 3233} 3234 3235 3236static int nl80211_get_country(struct nl_msg *msg, void *arg) 3237{ 3238 char *alpha2 = arg; 3239 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 3240 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3241 3242 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3243 genlmsg_attrlen(gnlh, 0), NULL); 3244 if (!tb_msg[NL80211_ATTR_REG_ALPHA2]) { 3245 wpa_printf(MSG_DEBUG, "nl80211: No country information available"); 3246 return NL_SKIP; 3247 } 3248 os_strlcpy(alpha2, nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]), 3); 3249 return NL_SKIP; 3250} 3251 3252 3253static int wpa_driver_nl80211_get_country(void *priv, char *alpha2) 3254{ 3255 struct i802_bss *bss = priv; 3256 struct wpa_driver_nl80211_data *drv = bss->drv; 3257 struct nl_msg *msg; 3258 int ret; 3259 3260 msg = nlmsg_alloc(); 3261 if (!msg) 3262 return -ENOMEM; 3263 3264 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 3265 alpha2[0] = '\0'; 3266 ret = send_and_recv_msgs(drv, msg, nl80211_get_country, alpha2); 3267 if (!alpha2[0]) 3268 ret = -1; 3269 3270 return ret; 3271} 3272 3273 3274static int protocol_feature_handler(struct nl_msg *msg, void *arg) 3275{ 3276 u32 *feat = arg; 3277 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 3278 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3279 3280 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3281 genlmsg_attrlen(gnlh, 0), NULL); 3282 3283 if (tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]) 3284 *feat = nla_get_u32(tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]); 3285 3286 return NL_SKIP; 3287} 3288 3289 3290static u32 get_nl80211_protocol_features(struct wpa_driver_nl80211_data *drv) 3291{ 3292 u32 feat = 0; 3293 struct nl_msg *msg; 3294 3295 msg = nlmsg_alloc(); 3296 if (!msg) 3297 goto nla_put_failure; 3298 3299 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_PROTOCOL_FEATURES); 3300 if (send_and_recv_msgs(drv, msg, protocol_feature_handler, &feat) == 0) 3301 return feat; 3302 3303 msg = NULL; 3304nla_put_failure: 3305 nlmsg_free(msg); 3306 return 0; 3307} 3308 3309 3310struct wiphy_info_data { 3311 struct wpa_driver_nl80211_data *drv; 3312 struct wpa_driver_capa *capa; 3313 3314 unsigned int num_multichan_concurrent; 3315 3316 unsigned int error:1; 3317 unsigned int device_ap_sme:1; 3318 unsigned int poll_command_supported:1; 3319 unsigned int data_tx_status:1; 3320 unsigned int monitor_supported:1; 3321 unsigned int auth_supported:1; 3322 unsigned int connect_supported:1; 3323 unsigned int p2p_go_supported:1; 3324 unsigned int p2p_client_supported:1; 3325 unsigned int p2p_concurrent:1; 3326 unsigned int channel_switch_supported:1; 3327 unsigned int set_qos_map_supported:1; 3328}; 3329 3330 3331static unsigned int probe_resp_offload_support(int supp_protocols) 3332{ 3333 unsigned int prot = 0; 3334 3335 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS) 3336 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS; 3337 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2) 3338 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2; 3339 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P) 3340 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P; 3341 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U) 3342 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING; 3343 3344 return prot; 3345} 3346 3347 3348static void wiphy_info_supported_iftypes(struct wiphy_info_data *info, 3349 struct nlattr *tb) 3350{ 3351 struct nlattr *nl_mode; 3352 int i; 3353 3354 if (tb == NULL) 3355 return; 3356 3357 nla_for_each_nested(nl_mode, tb, i) { 3358 switch (nla_type(nl_mode)) { 3359 case NL80211_IFTYPE_AP: 3360 info->capa->flags |= WPA_DRIVER_FLAGS_AP; 3361 break; 3362 case NL80211_IFTYPE_ADHOC: 3363 info->capa->flags |= WPA_DRIVER_FLAGS_IBSS; 3364 break; 3365 case NL80211_IFTYPE_P2P_DEVICE: 3366 info->capa->flags |= 3367 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 3368 break; 3369 case NL80211_IFTYPE_P2P_GO: 3370 info->p2p_go_supported = 1; 3371 break; 3372 case NL80211_IFTYPE_P2P_CLIENT: 3373 info->p2p_client_supported = 1; 3374 break; 3375 case NL80211_IFTYPE_MONITOR: 3376 info->monitor_supported = 1; 3377 break; 3378 } 3379 } 3380} 3381 3382 3383static int wiphy_info_iface_comb_process(struct wiphy_info_data *info, 3384 struct nlattr *nl_combi) 3385{ 3386 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB]; 3387 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT]; 3388 struct nlattr *nl_limit, *nl_mode; 3389 int err, rem_limit, rem_mode; 3390 int combination_has_p2p = 0, combination_has_mgd = 0; 3391 static struct nla_policy 3392 iface_combination_policy[NUM_NL80211_IFACE_COMB] = { 3393 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED }, 3394 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 }, 3395 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG }, 3396 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 }, 3397 [NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 }, 3398 }, 3399 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = { 3400 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED }, 3401 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 }, 3402 }; 3403 3404 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB, 3405 nl_combi, iface_combination_policy); 3406 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] || 3407 !tb_comb[NL80211_IFACE_COMB_MAXNUM] || 3408 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) 3409 return 0; /* broken combination */ 3410 3411 if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS]) 3412 info->capa->flags |= WPA_DRIVER_FLAGS_RADAR; 3413 3414 nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS], 3415 rem_limit) { 3416 err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT, 3417 nl_limit, iface_limit_policy); 3418 if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES]) 3419 return 0; /* broken combination */ 3420 3421 nla_for_each_nested(nl_mode, 3422 tb_limit[NL80211_IFACE_LIMIT_TYPES], 3423 rem_mode) { 3424 int ift = nla_type(nl_mode); 3425 if (ift == NL80211_IFTYPE_P2P_GO || 3426 ift == NL80211_IFTYPE_P2P_CLIENT) 3427 combination_has_p2p = 1; 3428 if (ift == NL80211_IFTYPE_STATION) 3429 combination_has_mgd = 1; 3430 } 3431 if (combination_has_p2p && combination_has_mgd) 3432 break; 3433 } 3434 3435 if (combination_has_p2p && combination_has_mgd) { 3436 info->p2p_concurrent = 1; 3437 info->num_multichan_concurrent = 3438 nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]); 3439 return 1; 3440 } 3441 3442 return 0; 3443} 3444 3445 3446static void wiphy_info_iface_comb(struct wiphy_info_data *info, 3447 struct nlattr *tb) 3448{ 3449 struct nlattr *nl_combi; 3450 int rem_combi; 3451 3452 if (tb == NULL) 3453 return; 3454 3455 nla_for_each_nested(nl_combi, tb, rem_combi) { 3456 if (wiphy_info_iface_comb_process(info, nl_combi) > 0) 3457 break; 3458 } 3459} 3460 3461 3462static void wiphy_info_supp_cmds(struct wiphy_info_data *info, 3463 struct nlattr *tb) 3464{ 3465 struct nlattr *nl_cmd; 3466 int i; 3467 3468 if (tb == NULL) 3469 return; 3470 3471 nla_for_each_nested(nl_cmd, tb, i) { 3472 switch (nla_get_u32(nl_cmd)) { 3473 case NL80211_CMD_AUTHENTICATE: 3474 info->auth_supported = 1; 3475 break; 3476 case NL80211_CMD_CONNECT: 3477 info->connect_supported = 1; 3478 break; 3479 case NL80211_CMD_START_SCHED_SCAN: 3480 info->capa->sched_scan_supported = 1; 3481 break; 3482 case NL80211_CMD_PROBE_CLIENT: 3483 info->poll_command_supported = 1; 3484 break; 3485 case NL80211_CMD_CHANNEL_SWITCH: 3486 info->channel_switch_supported = 1; 3487 break; 3488 case NL80211_CMD_SET_QOS_MAP: 3489 info->set_qos_map_supported = 1; 3490 break; 3491 } 3492 } 3493} 3494 3495 3496static void wiphy_info_cipher_suites(struct wiphy_info_data *info, 3497 struct nlattr *tb) 3498{ 3499 int i, num; 3500 u32 *ciphers; 3501 3502 if (tb == NULL) 3503 return; 3504 3505 num = nla_len(tb) / sizeof(u32); 3506 ciphers = nla_data(tb); 3507 for (i = 0; i < num; i++) { 3508 u32 c = ciphers[i]; 3509 3510 wpa_printf(MSG_DEBUG, "nl80211: Supported cipher %02x-%02x-%02x:%d", 3511 c >> 24, (c >> 16) & 0xff, 3512 (c >> 8) & 0xff, c & 0xff); 3513 switch (c) { 3514 case WLAN_CIPHER_SUITE_CCMP_256: 3515 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP_256; 3516 break; 3517 case WLAN_CIPHER_SUITE_GCMP_256: 3518 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP_256; 3519 break; 3520 case WLAN_CIPHER_SUITE_CCMP: 3521 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP; 3522 break; 3523 case WLAN_CIPHER_SUITE_GCMP: 3524 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP; 3525 break; 3526 case WLAN_CIPHER_SUITE_TKIP: 3527 info->capa->enc |= WPA_DRIVER_CAPA_ENC_TKIP; 3528 break; 3529 case WLAN_CIPHER_SUITE_WEP104: 3530 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP104; 3531 break; 3532 case WLAN_CIPHER_SUITE_WEP40: 3533 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP40; 3534 break; 3535 case WLAN_CIPHER_SUITE_AES_CMAC: 3536 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP; 3537 break; 3538 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 3539 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_128; 3540 break; 3541 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 3542 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_256; 3543 break; 3544 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 3545 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_CMAC_256; 3546 break; 3547 case WLAN_CIPHER_SUITE_NO_GROUP_ADDR: 3548 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GTK_NOT_USED; 3549 break; 3550 } 3551 } 3552} 3553 3554 3555static void wiphy_info_max_roc(struct wpa_driver_capa *capa, 3556 struct nlattr *tb) 3557{ 3558 if (tb) 3559 capa->max_remain_on_chan = nla_get_u32(tb); 3560} 3561 3562 3563static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls, 3564 struct nlattr *ext_setup) 3565{ 3566 if (tdls == NULL) 3567 return; 3568 3569 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported"); 3570 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT; 3571 3572 if (ext_setup) { 3573 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup"); 3574 capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP; 3575 } 3576} 3577 3578 3579static void wiphy_info_feature_flags(struct wiphy_info_data *info, 3580 struct nlattr *tb) 3581{ 3582 u32 flags; 3583 struct wpa_driver_capa *capa = info->capa; 3584 3585 if (tb == NULL) 3586 return; 3587 3588 flags = nla_get_u32(tb); 3589 3590 if (flags & NL80211_FEATURE_SK_TX_STATUS) 3591 info->data_tx_status = 1; 3592 3593 if (flags & NL80211_FEATURE_INACTIVITY_TIMER) 3594 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER; 3595 3596 if (flags & NL80211_FEATURE_SAE) 3597 capa->flags |= WPA_DRIVER_FLAGS_SAE; 3598 3599 if (flags & NL80211_FEATURE_NEED_OBSS_SCAN) 3600 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN; 3601} 3602 3603 3604static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa, 3605 struct nlattr *tb) 3606{ 3607 u32 protocols; 3608 3609 if (tb == NULL) 3610 return; 3611 3612 protocols = nla_get_u32(tb); 3613 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP " 3614 "mode"); 3615 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD; 3616 capa->probe_resp_offloads = probe_resp_offload_support(protocols); 3617} 3618 3619 3620static int wiphy_info_handler(struct nl_msg *msg, void *arg) 3621{ 3622 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3623 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3624 struct wiphy_info_data *info = arg; 3625 struct wpa_driver_capa *capa = info->capa; 3626 struct wpa_driver_nl80211_data *drv = info->drv; 3627 3628 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3629 genlmsg_attrlen(gnlh, 0), NULL); 3630 3631 if (tb[NL80211_ATTR_WIPHY_NAME]) 3632 os_strlcpy(drv->phyname, 3633 nla_get_string(tb[NL80211_ATTR_WIPHY_NAME]), 3634 sizeof(drv->phyname)); 3635 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]) 3636 capa->max_scan_ssids = 3637 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]); 3638 3639 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]) 3640 capa->max_sched_scan_ssids = 3641 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]); 3642 3643 if (tb[NL80211_ATTR_MAX_MATCH_SETS]) 3644 capa->max_match_sets = 3645 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]); 3646 3647 if (tb[NL80211_ATTR_MAC_ACL_MAX]) 3648 capa->max_acl_mac_addrs = 3649 nla_get_u8(tb[NL80211_ATTR_MAC_ACL_MAX]); 3650 3651 wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]); 3652 wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]); 3653 wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]); 3654 wiphy_info_cipher_suites(info, tb[NL80211_ATTR_CIPHER_SUITES]); 3655 3656 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) { 3657 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based " 3658 "off-channel TX"); 3659 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX; 3660 } 3661 3662 if (tb[NL80211_ATTR_ROAM_SUPPORT]) { 3663 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming"); 3664 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION; 3665 } 3666 3667 wiphy_info_max_roc(capa, 3668 tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]); 3669 3670 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD]) 3671 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD; 3672 3673 wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT], 3674 tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]); 3675 3676 if (tb[NL80211_ATTR_DEVICE_AP_SME]) 3677 info->device_ap_sme = 1; 3678 3679 wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]); 3680 wiphy_info_probe_resp_offload(capa, 3681 tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]); 3682 3683 if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] && 3684 drv->extended_capa == NULL) { 3685 drv->extended_capa = 3686 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3687 if (drv->extended_capa) { 3688 os_memcpy(drv->extended_capa, 3689 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 3690 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3691 drv->extended_capa_len = 3692 nla_len(tb[NL80211_ATTR_EXT_CAPA]); 3693 } 3694 drv->extended_capa_mask = 3695 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3696 if (drv->extended_capa_mask) { 3697 os_memcpy(drv->extended_capa_mask, 3698 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 3699 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3700 } else { 3701 os_free(drv->extended_capa); 3702 drv->extended_capa = NULL; 3703 drv->extended_capa_len = 0; 3704 } 3705 } 3706 3707 if (tb[NL80211_ATTR_VENDOR_DATA]) { 3708 struct nlattr *nl; 3709 int rem; 3710 3711 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_DATA], rem) { 3712 struct nl80211_vendor_cmd_info *vinfo; 3713 if (nla_len(nl) != sizeof(*vinfo)) { 3714 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info"); 3715 continue; 3716 } 3717 vinfo = nla_data(nl); 3718 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor command: vendor_id=0x%x subcmd=%u", 3719 vinfo->vendor_id, vinfo->subcmd); 3720 } 3721 } 3722 3723 if (tb[NL80211_ATTR_VENDOR_EVENTS]) { 3724 struct nlattr *nl; 3725 int rem; 3726 3727 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_EVENTS], rem) { 3728 struct nl80211_vendor_cmd_info *vinfo; 3729 if (nla_len(nl) != sizeof(*vinfo)) { 3730 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info"); 3731 continue; 3732 } 3733 vinfo = nla_data(nl); 3734 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor event: vendor_id=0x%x subcmd=%u", 3735 vinfo->vendor_id, vinfo->subcmd); 3736 } 3737 } 3738 3739 return NL_SKIP; 3740} 3741 3742 3743static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv, 3744 struct wiphy_info_data *info) 3745{ 3746 u32 feat; 3747 struct nl_msg *msg; 3748 3749 os_memset(info, 0, sizeof(*info)); 3750 info->capa = &drv->capa; 3751 info->drv = drv; 3752 3753 msg = nlmsg_alloc(); 3754 if (!msg) 3755 return -1; 3756 3757 feat = get_nl80211_protocol_features(drv); 3758 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 3759 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 3760 else 3761 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 3762 3763 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 3764 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 3765 goto nla_put_failure; 3766 3767 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info)) 3768 return -1; 3769 3770 if (info->auth_supported) 3771 drv->capa.flags |= WPA_DRIVER_FLAGS_SME; 3772 else if (!info->connect_supported) { 3773 wpa_printf(MSG_INFO, "nl80211: Driver does not support " 3774 "authentication/association or connect commands"); 3775 info->error = 1; 3776 } 3777 3778 if (info->p2p_go_supported && info->p2p_client_supported) 3779 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE; 3780 if (info->p2p_concurrent) { 3781 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 3782 "interface (driver advertised support)"); 3783 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 3784 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 3785 } 3786 if (info->num_multichan_concurrent > 1) { 3787 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel " 3788 "concurrent (driver advertised support)"); 3789 drv->capa.num_multichan_concurrent = 3790 info->num_multichan_concurrent; 3791 } 3792 3793 /* default to 5000 since early versions of mac80211 don't set it */ 3794 if (!drv->capa.max_remain_on_chan) 3795 drv->capa.max_remain_on_chan = 5000; 3796 3797 if (info->channel_switch_supported) 3798 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_CSA; 3799 3800 return 0; 3801nla_put_failure: 3802 nlmsg_free(msg); 3803 return -1; 3804} 3805 3806 3807static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv) 3808{ 3809 struct wiphy_info_data info; 3810 if (wpa_driver_nl80211_get_info(drv, &info)) 3811 return -1; 3812 3813 if (info.error) 3814 return -1; 3815 3816 drv->has_capability = 1; 3817 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA | 3818 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK | 3819 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 | 3820 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK; 3821 drv->capa.auth = WPA_DRIVER_AUTH_OPEN | 3822 WPA_DRIVER_AUTH_SHARED | 3823 WPA_DRIVER_AUTH_LEAP; 3824 3825 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES; 3826 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE; 3827 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3828 3829 /* 3830 * As all cfg80211 drivers must support cases where the AP interface is 3831 * removed without the knowledge of wpa_supplicant/hostapd, e.g., in 3832 * case that the user space daemon has crashed, they must be able to 3833 * cleanup all stations and key entries in the AP tear down flow. Thus, 3834 * this flag can/should always be set for cfg80211 drivers. 3835 */ 3836 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT; 3837 3838 if (!info.device_ap_sme) { 3839 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS; 3840 3841 /* 3842 * No AP SME is currently assumed to also indicate no AP MLME 3843 * in the driver/firmware. 3844 */ 3845 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME; 3846 } 3847 3848 drv->device_ap_sme = info.device_ap_sme; 3849 drv->poll_command_supported = info.poll_command_supported; 3850 drv->data_tx_status = info.data_tx_status; 3851 if (info.set_qos_map_supported) 3852 drv->capa.flags |= WPA_DRIVER_FLAGS_QOS_MAPPING; 3853 3854 /* 3855 * If poll command and tx status are supported, mac80211 is new enough 3856 * to have everything we need to not need monitor interfaces. 3857 */ 3858 drv->use_monitor = !info.poll_command_supported || !info.data_tx_status; 3859 3860 if (drv->device_ap_sme && drv->use_monitor) { 3861 /* 3862 * Non-mac80211 drivers may not support monitor interface. 3863 * Make sure we do not get stuck with incorrect capability here 3864 * by explicitly testing this. 3865 */ 3866 if (!info.monitor_supported) { 3867 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor " 3868 "with device_ap_sme since no monitor mode " 3869 "support detected"); 3870 drv->use_monitor = 0; 3871 } 3872 } 3873 3874 /* 3875 * If we aren't going to use monitor interfaces, but the 3876 * driver doesn't support data TX status, we won't get TX 3877 * status for EAPOL frames. 3878 */ 3879 if (!drv->use_monitor && !info.data_tx_status) 3880 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3881 3882 return 0; 3883} 3884 3885 3886#ifdef ANDROID 3887static int android_genl_ctrl_resolve(struct nl_handle *handle, 3888 const char *name) 3889{ 3890 /* 3891 * Android ICS has very minimal genl_ctrl_resolve() implementation, so 3892 * need to work around that. 3893 */ 3894 struct nl_cache *cache = NULL; 3895 struct genl_family *nl80211 = NULL; 3896 int id = -1; 3897 3898 if (genl_ctrl_alloc_cache(handle, &cache) < 0) { 3899 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic " 3900 "netlink cache"); 3901 goto fail; 3902 } 3903 3904 nl80211 = genl_ctrl_search_by_name(cache, name); 3905 if (nl80211 == NULL) 3906 goto fail; 3907 3908 id = genl_family_get_id(nl80211); 3909 3910fail: 3911 if (nl80211) 3912 genl_family_put(nl80211); 3913 if (cache) 3914 nl_cache_free(cache); 3915 3916 return id; 3917} 3918#define genl_ctrl_resolve android_genl_ctrl_resolve 3919#endif /* ANDROID */ 3920 3921 3922static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global) 3923{ 3924 int ret; 3925 3926 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3927 if (global->nl_cb == NULL) { 3928 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " 3929 "callbacks"); 3930 return -1; 3931 } 3932 3933 global->nl = nl_create_handle(global->nl_cb, "nl"); 3934 if (global->nl == NULL) 3935 goto err; 3936 3937 global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211"); 3938 if (global->nl80211_id < 0) { 3939 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not " 3940 "found"); 3941 goto err; 3942 } 3943 3944 global->nl_event = nl_create_handle(global->nl_cb, "event"); 3945 if (global->nl_event == NULL) 3946 goto err; 3947 3948 ret = nl_get_multicast_id(global, "nl80211", "scan"); 3949 if (ret >= 0) 3950 ret = nl_socket_add_membership(global->nl_event, ret); 3951 if (ret < 0) { 3952 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 3953 "membership for scan events: %d (%s)", 3954 ret, strerror(-ret)); 3955 goto err; 3956 } 3957 3958 ret = nl_get_multicast_id(global, "nl80211", "mlme"); 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 mlme events: %d (%s)", 3964 ret, strerror(-ret)); 3965 goto err; 3966 } 3967 3968 ret = nl_get_multicast_id(global, "nl80211", "regulatory"); 3969 if (ret >= 0) 3970 ret = nl_socket_add_membership(global->nl_event, ret); 3971 if (ret < 0) { 3972 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " 3973 "membership for regulatory events: %d (%s)", 3974 ret, strerror(-ret)); 3975 /* Continue without regulatory events */ 3976 } 3977 3978 ret = nl_get_multicast_id(global, "nl80211", "vendor"); 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 vendor events: %d (%s)", 3984 ret, strerror(-ret)); 3985 /* Continue without vendor events */ 3986 } 3987 3988 nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3989 no_seq_check, NULL); 3990 nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3991 process_global_event, global); 3992 3993 nl80211_register_eloop_read(&global->nl_event, 3994 wpa_driver_nl80211_event_receive, 3995 global->nl_cb); 3996 3997 return 0; 3998 3999err: 4000 nl_destroy_handles(&global->nl_event); 4001 nl_destroy_handles(&global->nl); 4002 nl_cb_put(global->nl_cb); 4003 global->nl_cb = NULL; 4004 return -1; 4005} 4006 4007 4008static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv) 4009{ 4010 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 4011 if (!drv->nl_cb) { 4012 wpa_printf(MSG_ERROR, "nl80211: Failed to alloc cb struct"); 4013 return -1; 4014 } 4015 4016 nl_cb_set(drv->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 4017 no_seq_check, NULL); 4018 nl_cb_set(drv->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 4019 process_drv_event, drv); 4020 4021 return 0; 4022} 4023 4024 4025static void wpa_driver_nl80211_rfkill_blocked(void *ctx) 4026{ 4027 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked"); 4028 /* 4029 * This may be for any interface; use ifdown event to disable 4030 * interface. 4031 */ 4032} 4033 4034 4035static void wpa_driver_nl80211_rfkill_unblocked(void *ctx) 4036{ 4037 struct wpa_driver_nl80211_data *drv = ctx; 4038 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked"); 4039 if (i802_set_iface_flags(drv->first_bss, 1)) { 4040 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP " 4041 "after rfkill unblock"); 4042 return; 4043 } 4044 /* rtnetlink ifup handler will report interface as enabled */ 4045} 4046 4047 4048static void wpa_driver_nl80211_handle_eapol_tx_status(int sock, 4049 void *eloop_ctx, 4050 void *handle) 4051{ 4052 struct wpa_driver_nl80211_data *drv = eloop_ctx; 4053 u8 data[2048]; 4054 struct msghdr msg; 4055 struct iovec entry; 4056 u8 control[512]; 4057 struct cmsghdr *cmsg; 4058 int res, found_ee = 0, found_wifi = 0, acked = 0; 4059 union wpa_event_data event; 4060 4061 memset(&msg, 0, sizeof(msg)); 4062 msg.msg_iov = &entry; 4063 msg.msg_iovlen = 1; 4064 entry.iov_base = data; 4065 entry.iov_len = sizeof(data); 4066 msg.msg_control = &control; 4067 msg.msg_controllen = sizeof(control); 4068 4069 res = recvmsg(sock, &msg, MSG_ERRQUEUE); 4070 /* if error or not fitting 802.3 header, return */ 4071 if (res < 14) 4072 return; 4073 4074 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) 4075 { 4076 if (cmsg->cmsg_level == SOL_SOCKET && 4077 cmsg->cmsg_type == SCM_WIFI_STATUS) { 4078 int *ack; 4079 4080 found_wifi = 1; 4081 ack = (void *)CMSG_DATA(cmsg); 4082 acked = *ack; 4083 } 4084 4085 if (cmsg->cmsg_level == SOL_PACKET && 4086 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) { 4087 struct sock_extended_err *err = 4088 (struct sock_extended_err *)CMSG_DATA(cmsg); 4089 4090 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS) 4091 found_ee = 1; 4092 } 4093 } 4094 4095 if (!found_ee || !found_wifi) 4096 return; 4097 4098 memset(&event, 0, sizeof(event)); 4099 event.eapol_tx_status.dst = data; 4100 event.eapol_tx_status.data = data + 14; 4101 event.eapol_tx_status.data_len = res - 14; 4102 event.eapol_tx_status.ack = acked; 4103 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event); 4104} 4105 4106 4107static int nl80211_init_bss(struct i802_bss *bss) 4108{ 4109 bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 4110 if (!bss->nl_cb) 4111 return -1; 4112 4113 nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 4114 no_seq_check, NULL); 4115 nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 4116 process_bss_event, bss); 4117 4118 return 0; 4119} 4120 4121 4122static void nl80211_destroy_bss(struct i802_bss *bss) 4123{ 4124 nl_cb_put(bss->nl_cb); 4125 bss->nl_cb = NULL; 4126} 4127 4128 4129static void * wpa_driver_nl80211_drv_init(void *ctx, const char *ifname, 4130 void *global_priv, int hostapd, 4131 const u8 *set_addr) 4132{ 4133 struct wpa_driver_nl80211_data *drv; 4134 struct rfkill_config *rcfg; 4135 struct i802_bss *bss; 4136 4137 if (global_priv == NULL) 4138 return NULL; 4139 drv = os_zalloc(sizeof(*drv)); 4140 if (drv == NULL) 4141 return NULL; 4142 drv->global = global_priv; 4143 drv->ctx = ctx; 4144 drv->hostapd = !!hostapd; 4145 drv->eapol_sock = -1; 4146 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int); 4147 drv->if_indices = drv->default_if_indices; 4148 4149 drv->first_bss = os_zalloc(sizeof(*drv->first_bss)); 4150 if (!drv->first_bss) { 4151 os_free(drv); 4152 return NULL; 4153 } 4154 bss = drv->first_bss; 4155 bss->drv = drv; 4156 bss->ctx = ctx; 4157 4158 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname)); 4159 drv->monitor_ifidx = -1; 4160 drv->monitor_sock = -1; 4161 drv->eapol_tx_sock = -1; 4162 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 4163 4164 if (wpa_driver_nl80211_init_nl(drv)) { 4165 os_free(drv); 4166 return NULL; 4167 } 4168 4169 if (nl80211_init_bss(bss)) 4170 goto failed; 4171 4172 rcfg = os_zalloc(sizeof(*rcfg)); 4173 if (rcfg == NULL) 4174 goto failed; 4175 rcfg->ctx = drv; 4176 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname)); 4177 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked; 4178 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked; 4179 drv->rfkill = rfkill_init(rcfg); 4180 if (drv->rfkill == NULL) { 4181 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available"); 4182 os_free(rcfg); 4183 } 4184 4185 if (linux_iface_up(drv->global->ioctl_sock, ifname) > 0) 4186 drv->start_iface_up = 1; 4187 4188 if (wpa_driver_nl80211_finish_drv_init(drv, set_addr, 1)) 4189 goto failed; 4190 4191 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0); 4192 if (drv->eapol_tx_sock < 0) 4193 goto failed; 4194 4195 if (drv->data_tx_status) { 4196 int enabled = 1; 4197 4198 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS, 4199 &enabled, sizeof(enabled)) < 0) { 4200 wpa_printf(MSG_DEBUG, 4201 "nl80211: wifi status sockopt failed\n"); 4202 drv->data_tx_status = 0; 4203 if (!drv->use_monitor) 4204 drv->capa.flags &= 4205 ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 4206 } else { 4207 eloop_register_read_sock(drv->eapol_tx_sock, 4208 wpa_driver_nl80211_handle_eapol_tx_status, 4209 drv, NULL); 4210 } 4211 } 4212 4213 if (drv->global) { 4214 dl_list_add(&drv->global->interfaces, &drv->list); 4215 drv->in_interface_list = 1; 4216 } 4217 4218 return bss; 4219 4220failed: 4221 wpa_driver_nl80211_deinit(bss); 4222 return NULL; 4223} 4224 4225 4226/** 4227 * wpa_driver_nl80211_init - Initialize nl80211 driver interface 4228 * @ctx: context to be used when calling wpa_supplicant functions, 4229 * e.g., wpa_supplicant_event() 4230 * @ifname: interface name, e.g., wlan0 4231 * @global_priv: private driver global data from global_init() 4232 * Returns: Pointer to private data, %NULL on failure 4233 */ 4234static void * wpa_driver_nl80211_init(void *ctx, const char *ifname, 4235 void *global_priv) 4236{ 4237 return wpa_driver_nl80211_drv_init(ctx, ifname, global_priv, 0, NULL); 4238} 4239 4240 4241static int nl80211_register_frame(struct i802_bss *bss, 4242 struct nl_handle *nl_handle, 4243 u16 type, const u8 *match, size_t match_len) 4244{ 4245 struct wpa_driver_nl80211_data *drv = bss->drv; 4246 struct nl_msg *msg; 4247 int ret = -1; 4248 char buf[30]; 4249 4250 msg = nlmsg_alloc(); 4251 if (!msg) 4252 return -1; 4253 4254 buf[0] = '\0'; 4255 wpa_snprintf_hex(buf, sizeof(buf), match, match_len); 4256 wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x nl_handle=%p match=%s", 4257 type, nl_handle, buf); 4258 4259 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION); 4260 4261 if (nl80211_set_iface_id(msg, bss) < 0) 4262 goto nla_put_failure; 4263 4264 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type); 4265 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match); 4266 4267 ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL); 4268 msg = NULL; 4269 if (ret) { 4270 wpa_printf(MSG_DEBUG, "nl80211: Register frame command " 4271 "failed (type=%u): ret=%d (%s)", 4272 type, ret, strerror(-ret)); 4273 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", 4274 match, match_len); 4275 goto nla_put_failure; 4276 } 4277 ret = 0; 4278nla_put_failure: 4279 nlmsg_free(msg); 4280 return ret; 4281} 4282 4283 4284static int nl80211_alloc_mgmt_handle(struct i802_bss *bss) 4285{ 4286 struct wpa_driver_nl80211_data *drv = bss->drv; 4287 4288 if (bss->nl_mgmt) { 4289 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting " 4290 "already on! (nl_mgmt=%p)", bss->nl_mgmt); 4291 return -1; 4292 } 4293 4294 bss->nl_mgmt = nl_create_handle(drv->nl_cb, "mgmt"); 4295 if (bss->nl_mgmt == NULL) 4296 return -1; 4297 4298 return 0; 4299} 4300 4301 4302static void nl80211_mgmt_handle_register_eloop(struct i802_bss *bss) 4303{ 4304 nl80211_register_eloop_read(&bss->nl_mgmt, 4305 wpa_driver_nl80211_event_receive, 4306 bss->nl_cb); 4307} 4308 4309 4310static int nl80211_register_action_frame(struct i802_bss *bss, 4311 const u8 *match, size_t match_len) 4312{ 4313 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4); 4314 return nl80211_register_frame(bss, bss->nl_mgmt, 4315 type, match, match_len); 4316} 4317 4318 4319static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss) 4320{ 4321 struct wpa_driver_nl80211_data *drv = bss->drv; 4322 int ret = 0; 4323 4324 if (nl80211_alloc_mgmt_handle(bss)) 4325 return -1; 4326 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP " 4327 "handle %p", bss->nl_mgmt); 4328 4329 if (drv->nlmode == NL80211_IFTYPE_ADHOC) { 4330 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_AUTH << 4); 4331 4332 /* register for any AUTH message */ 4333 nl80211_register_frame(bss, bss->nl_mgmt, type, NULL, 0); 4334 } 4335 4336#ifdef CONFIG_INTERWORKING 4337 /* QoS Map Configure */ 4338 if (nl80211_register_action_frame(bss, (u8 *) "\x01\x04", 2) < 0) 4339 ret = -1; 4340#endif /* CONFIG_INTERWORKING */ 4341#if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING) 4342 /* GAS Initial Request */ 4343 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0) 4344 ret = -1; 4345 /* GAS Initial Response */ 4346 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0) 4347 ret = -1; 4348 /* GAS Comeback Request */ 4349 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0) 4350 ret = -1; 4351 /* GAS Comeback Response */ 4352 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0) 4353 ret = -1; 4354 /* Protected GAS Initial Request */ 4355 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0a", 2) < 0) 4356 ret = -1; 4357 /* Protected GAS Initial Response */ 4358 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0b", 2) < 0) 4359 ret = -1; 4360 /* Protected GAS Comeback Request */ 4361 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0c", 2) < 0) 4362 ret = -1; 4363 /* Protected GAS Comeback Response */ 4364 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0d", 2) < 0) 4365 ret = -1; 4366#endif /* CONFIG_P2P || CONFIG_INTERWORKING */ 4367#ifdef CONFIG_P2P 4368 /* P2P Public Action */ 4369 if (nl80211_register_action_frame(bss, 4370 (u8 *) "\x04\x09\x50\x6f\x9a\x09", 4371 6) < 0) 4372 ret = -1; 4373 /* P2P Action */ 4374 if (nl80211_register_action_frame(bss, 4375 (u8 *) "\x7f\x50\x6f\x9a\x09", 4376 5) < 0) 4377 ret = -1; 4378#endif /* CONFIG_P2P */ 4379#ifdef CONFIG_IEEE80211W 4380 /* SA Query Response */ 4381 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0) 4382 ret = -1; 4383#endif /* CONFIG_IEEE80211W */ 4384#ifdef CONFIG_TDLS 4385 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) { 4386 /* TDLS Discovery Response */ 4387 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) < 4388 0) 4389 ret = -1; 4390 } 4391#endif /* CONFIG_TDLS */ 4392 4393 /* FT Action frames */ 4394 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0) 4395 ret = -1; 4396 else 4397 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT | 4398 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK; 4399 4400 /* WNM - BSS Transition Management Request */ 4401 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0) 4402 ret = -1; 4403 /* WNM-Sleep Mode Response */ 4404 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x11", 2) < 0) 4405 ret = -1; 4406 4407#ifdef CONFIG_HS20 4408 /* WNM-Notification */ 4409 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x1a", 2) < 0) 4410 return -1; 4411#endif /* CONFIG_HS20 */ 4412 4413 nl80211_mgmt_handle_register_eloop(bss); 4414 4415 return ret; 4416} 4417 4418 4419static int nl80211_register_spurious_class3(struct i802_bss *bss) 4420{ 4421 struct wpa_driver_nl80211_data *drv = bss->drv; 4422 struct nl_msg *msg; 4423 int ret = -1; 4424 4425 msg = nlmsg_alloc(); 4426 if (!msg) 4427 return -1; 4428 4429 nl80211_cmd(drv, msg, 0, NL80211_CMD_UNEXPECTED_FRAME); 4430 4431 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 4432 4433 ret = send_and_recv(drv->global, bss->nl_mgmt, msg, NULL, NULL); 4434 msg = NULL; 4435 if (ret) { 4436 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 " 4437 "failed: ret=%d (%s)", 4438 ret, strerror(-ret)); 4439 goto nla_put_failure; 4440 } 4441 ret = 0; 4442nla_put_failure: 4443 nlmsg_free(msg); 4444 return ret; 4445} 4446 4447 4448static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss) 4449{ 4450 static const int stypes[] = { 4451 WLAN_FC_STYPE_AUTH, 4452 WLAN_FC_STYPE_ASSOC_REQ, 4453 WLAN_FC_STYPE_REASSOC_REQ, 4454 WLAN_FC_STYPE_DISASSOC, 4455 WLAN_FC_STYPE_DEAUTH, 4456 WLAN_FC_STYPE_ACTION, 4457 WLAN_FC_STYPE_PROBE_REQ, 4458/* Beacon doesn't work as mac80211 doesn't currently allow 4459 * it, but it wouldn't really be the right thing anyway as 4460 * it isn't per interface ... maybe just dump the scan 4461 * results periodically for OLBC? 4462 */ 4463// WLAN_FC_STYPE_BEACON, 4464 }; 4465 unsigned int i; 4466 4467 if (nl80211_alloc_mgmt_handle(bss)) 4468 return -1; 4469 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 4470 "handle %p", bss->nl_mgmt); 4471 4472 for (i = 0; i < ARRAY_SIZE(stypes); i++) { 4473 if (nl80211_register_frame(bss, bss->nl_mgmt, 4474 (WLAN_FC_TYPE_MGMT << 2) | 4475 (stypes[i] << 4), 4476 NULL, 0) < 0) { 4477 goto out_err; 4478 } 4479 } 4480 4481 if (nl80211_register_spurious_class3(bss)) 4482 goto out_err; 4483 4484 if (nl80211_get_wiphy_data_ap(bss) == NULL) 4485 goto out_err; 4486 4487 nl80211_mgmt_handle_register_eloop(bss); 4488 return 0; 4489 4490out_err: 4491 nl_destroy_handles(&bss->nl_mgmt); 4492 return -1; 4493} 4494 4495 4496static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss) 4497{ 4498 if (nl80211_alloc_mgmt_handle(bss)) 4499 return -1; 4500 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 4501 "handle %p (device SME)", bss->nl_mgmt); 4502 4503 if (nl80211_register_frame(bss, bss->nl_mgmt, 4504 (WLAN_FC_TYPE_MGMT << 2) | 4505 (WLAN_FC_STYPE_ACTION << 4), 4506 NULL, 0) < 0) 4507 goto out_err; 4508 4509 nl80211_mgmt_handle_register_eloop(bss); 4510 return 0; 4511 4512out_err: 4513 nl_destroy_handles(&bss->nl_mgmt); 4514 return -1; 4515} 4516 4517 4518static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason) 4519{ 4520 if (bss->nl_mgmt == NULL) 4521 return; 4522 wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p " 4523 "(%s)", bss->nl_mgmt, reason); 4524 nl80211_destroy_eloop_handle(&bss->nl_mgmt); 4525 4526 nl80211_put_wiphy_data_ap(bss); 4527} 4528 4529 4530static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx) 4531{ 4532 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL); 4533} 4534 4535 4536static void nl80211_del_p2pdev(struct i802_bss *bss) 4537{ 4538 struct wpa_driver_nl80211_data *drv = bss->drv; 4539 struct nl_msg *msg; 4540 int ret; 4541 4542 msg = nlmsg_alloc(); 4543 if (!msg) 4544 return; 4545 4546 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 4547 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 4548 4549 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4550 msg = NULL; 4551 4552 wpa_printf(MSG_DEBUG, "nl80211: Delete P2P Device %s (0x%llx): %s", 4553 bss->ifname, (long long unsigned int) bss->wdev_id, 4554 strerror(-ret)); 4555 4556nla_put_failure: 4557 nlmsg_free(msg); 4558} 4559 4560 4561static int nl80211_set_p2pdev(struct i802_bss *bss, int start) 4562{ 4563 struct wpa_driver_nl80211_data *drv = bss->drv; 4564 struct nl_msg *msg; 4565 int ret = -1; 4566 4567 msg = nlmsg_alloc(); 4568 if (!msg) 4569 return -1; 4570 4571 if (start) 4572 nl80211_cmd(drv, msg, 0, NL80211_CMD_START_P2P_DEVICE); 4573 else 4574 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_P2P_DEVICE); 4575 4576 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 4577 4578 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4579 msg = NULL; 4580 4581 wpa_printf(MSG_DEBUG, "nl80211: %s P2P Device %s (0x%llx): %s", 4582 start ? "Start" : "Stop", 4583 bss->ifname, (long long unsigned int) bss->wdev_id, 4584 strerror(-ret)); 4585 4586nla_put_failure: 4587 nlmsg_free(msg); 4588 return ret; 4589} 4590 4591 4592static int i802_set_iface_flags(struct i802_bss *bss, int up) 4593{ 4594 enum nl80211_iftype nlmode; 4595 4596 nlmode = nl80211_get_ifmode(bss); 4597 if (nlmode != NL80211_IFTYPE_P2P_DEVICE) { 4598 return linux_set_iface_flags(bss->drv->global->ioctl_sock, 4599 bss->ifname, up); 4600 } 4601 4602 /* P2P Device has start/stop which is equivalent */ 4603 return nl80211_set_p2pdev(bss, up); 4604} 4605 4606 4607static int 4608wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv, 4609 const u8 *set_addr, int first) 4610{ 4611 struct i802_bss *bss = drv->first_bss; 4612 int send_rfkill_event = 0; 4613 enum nl80211_iftype nlmode; 4614 4615 drv->ifindex = if_nametoindex(bss->ifname); 4616 bss->ifindex = drv->ifindex; 4617 bss->wdev_id = drv->global->if_add_wdevid; 4618 bss->wdev_id_set = drv->global->if_add_wdevid_set; 4619 4620 bss->if_dynamic = drv->ifindex == drv->global->if_add_ifindex; 4621 bss->if_dynamic = bss->if_dynamic || drv->global->if_add_wdevid_set; 4622 drv->global->if_add_wdevid_set = 0; 4623 4624 if (wpa_driver_nl80211_capa(drv)) 4625 return -1; 4626 4627 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s", 4628 bss->ifname, drv->phyname); 4629 4630 if (set_addr && 4631 (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0) || 4632 linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 4633 set_addr))) 4634 return -1; 4635 4636 if (first && nl80211_get_ifmode(bss) == NL80211_IFTYPE_AP) 4637 drv->start_mode_ap = 1; 4638 4639 if (drv->hostapd) 4640 nlmode = NL80211_IFTYPE_AP; 4641 else if (bss->if_dynamic) 4642 nlmode = nl80211_get_ifmode(bss); 4643 else 4644 nlmode = NL80211_IFTYPE_STATION; 4645 4646 if (wpa_driver_nl80211_set_mode(bss, nlmode) < 0) { 4647 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver mode"); 4648 return -1; 4649 } 4650 4651 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) 4652 nl80211_get_macaddr(bss); 4653 4654 if (!rfkill_is_blocked(drv->rfkill)) { 4655 int ret = i802_set_iface_flags(bss, 1); 4656 if (ret) { 4657 wpa_printf(MSG_ERROR, "nl80211: Could not set " 4658 "interface '%s' UP", bss->ifname); 4659 return ret; 4660 } 4661 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) 4662 return ret; 4663 } else { 4664 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable " 4665 "interface '%s' due to rfkill", bss->ifname); 4666 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) 4667 return 0; 4668 drv->if_disabled = 1; 4669 send_rfkill_event = 1; 4670 } 4671 4672 if (!drv->hostapd) 4673 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 4674 1, IF_OPER_DORMANT); 4675 4676 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 4677 bss->addr)) 4678 return -1; 4679 4680 if (send_rfkill_event) { 4681 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill, 4682 drv, drv->ctx); 4683 } 4684 4685 return 0; 4686} 4687 4688 4689static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv) 4690{ 4691 struct nl_msg *msg; 4692 4693 msg = nlmsg_alloc(); 4694 if (!msg) 4695 return -ENOMEM; 4696 4697 wpa_printf(MSG_DEBUG, "nl80211: Remove beacon (ifindex=%d)", 4698 drv->ifindex); 4699 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON); 4700 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4701 4702 return send_and_recv_msgs(drv, msg, NULL, NULL); 4703 nla_put_failure: 4704 nlmsg_free(msg); 4705 return -ENOBUFS; 4706} 4707 4708 4709/** 4710 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface 4711 * @bss: Pointer to private nl80211 data from wpa_driver_nl80211_init() 4712 * 4713 * Shut down driver interface and processing of driver events. Free 4714 * private data buffer if one was allocated in wpa_driver_nl80211_init(). 4715 */ 4716static void wpa_driver_nl80211_deinit(struct i802_bss *bss) 4717{ 4718 struct wpa_driver_nl80211_data *drv = bss->drv; 4719 4720 bss->in_deinit = 1; 4721 if (drv->data_tx_status) 4722 eloop_unregister_read_sock(drv->eapol_tx_sock); 4723 if (drv->eapol_tx_sock >= 0) 4724 close(drv->eapol_tx_sock); 4725 4726 if (bss->nl_preq) 4727 wpa_driver_nl80211_probe_req_report(bss, 0); 4728 if (bss->added_if_into_bridge) { 4729 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 4730 bss->ifname) < 0) 4731 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 4732 "interface %s from bridge %s: %s", 4733 bss->ifname, bss->brname, strerror(errno)); 4734 } 4735 if (bss->added_bridge) { 4736 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 4737 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 4738 "bridge %s: %s", 4739 bss->brname, strerror(errno)); 4740 } 4741 4742 nl80211_remove_monitor_interface(drv); 4743 4744 if (is_ap_interface(drv->nlmode)) 4745 wpa_driver_nl80211_del_beacon(drv); 4746 4747 if (drv->eapol_sock >= 0) { 4748 eloop_unregister_read_sock(drv->eapol_sock); 4749 close(drv->eapol_sock); 4750 } 4751 4752 if (drv->if_indices != drv->default_if_indices) 4753 os_free(drv->if_indices); 4754 4755 if (drv->disabled_11b_rates) 4756 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 4757 4758 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0, 4759 IF_OPER_UP); 4760 rfkill_deinit(drv->rfkill); 4761 4762 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 4763 4764 if (!drv->start_iface_up) 4765 (void) i802_set_iface_flags(bss, 0); 4766 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) { 4767 if (!drv->hostapd || !drv->start_mode_ap) 4768 wpa_driver_nl80211_set_mode(bss, 4769 NL80211_IFTYPE_STATION); 4770 nl80211_mgmt_unsubscribe(bss, "deinit"); 4771 } else { 4772 nl80211_mgmt_unsubscribe(bss, "deinit"); 4773 nl80211_del_p2pdev(bss); 4774 } 4775 nl_cb_put(drv->nl_cb); 4776 4777 nl80211_destroy_bss(drv->first_bss); 4778 4779 os_free(drv->filter_ssids); 4780 4781 os_free(drv->auth_ie); 4782 4783 if (drv->in_interface_list) 4784 dl_list_del(&drv->list); 4785 4786 os_free(drv->extended_capa); 4787 os_free(drv->extended_capa_mask); 4788 os_free(drv->first_bss); 4789 os_free(drv); 4790} 4791 4792 4793/** 4794 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion 4795 * @eloop_ctx: Driver private data 4796 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init() 4797 * 4798 * This function can be used as registered timeout when starting a scan to 4799 * generate a scan completed event if the driver does not report this. 4800 */ 4801static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx) 4802{ 4803 struct wpa_driver_nl80211_data *drv = eloop_ctx; 4804 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) { 4805 wpa_driver_nl80211_set_mode(drv->first_bss, 4806 drv->ap_scan_as_station); 4807 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 4808 } 4809 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results"); 4810 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL); 4811} 4812 4813 4814static struct nl_msg * 4815nl80211_scan_common(struct wpa_driver_nl80211_data *drv, u8 cmd, 4816 struct wpa_driver_scan_params *params, u64 *wdev_id) 4817{ 4818 struct nl_msg *msg; 4819 size_t i; 4820 4821 msg = nlmsg_alloc(); 4822 if (!msg) 4823 return NULL; 4824 4825 nl80211_cmd(drv, msg, 0, cmd); 4826 4827 if (!wdev_id) 4828 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4829 else 4830 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, *wdev_id); 4831 4832 if (params->num_ssids) { 4833 struct nlattr *ssids; 4834 4835 ssids = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); 4836 if (ssids == NULL) 4837 goto fail; 4838 for (i = 0; i < params->num_ssids; i++) { 4839 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID", 4840 params->ssids[i].ssid, 4841 params->ssids[i].ssid_len); 4842 if (nla_put(msg, i + 1, params->ssids[i].ssid_len, 4843 params->ssids[i].ssid) < 0) 4844 goto fail; 4845 } 4846 nla_nest_end(msg, ssids); 4847 } 4848 4849 if (params->extra_ies) { 4850 wpa_hexdump(MSG_MSGDUMP, "nl80211: Scan extra IEs", 4851 params->extra_ies, params->extra_ies_len); 4852 if (nla_put(msg, NL80211_ATTR_IE, params->extra_ies_len, 4853 params->extra_ies) < 0) 4854 goto fail; 4855 } 4856 4857 if (params->freqs) { 4858 struct nlattr *freqs; 4859 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); 4860 if (freqs == NULL) 4861 goto fail; 4862 for (i = 0; params->freqs[i]; i++) { 4863 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u " 4864 "MHz", params->freqs[i]); 4865 if (nla_put_u32(msg, i + 1, params->freqs[i]) < 0) 4866 goto fail; 4867 } 4868 nla_nest_end(msg, freqs); 4869 } 4870 4871 os_free(drv->filter_ssids); 4872 drv->filter_ssids = params->filter_ssids; 4873 params->filter_ssids = NULL; 4874 drv->num_filter_ssids = params->num_filter_ssids; 4875 4876 if (params->only_new_results) { 4877 wpa_printf(MSG_DEBUG, "nl80211: Add NL80211_SCAN_FLAG_FLUSH"); 4878 NLA_PUT_U32(msg, NL80211_ATTR_SCAN_FLAGS, 4879 NL80211_SCAN_FLAG_FLUSH); 4880 } 4881 4882 return msg; 4883 4884fail: 4885nla_put_failure: 4886 nlmsg_free(msg); 4887 return NULL; 4888} 4889 4890 4891/** 4892 * wpa_driver_nl80211_scan - Request the driver to initiate scan 4893 * @bss: Pointer to private driver data from wpa_driver_nl80211_init() 4894 * @params: Scan parameters 4895 * Returns: 0 on success, -1 on failure 4896 */ 4897static int wpa_driver_nl80211_scan(struct i802_bss *bss, 4898 struct wpa_driver_scan_params *params) 4899{ 4900 struct wpa_driver_nl80211_data *drv = bss->drv; 4901 int ret = -1, timeout; 4902 struct nl_msg *msg = NULL; 4903 4904 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: scan request"); 4905 drv->scan_for_auth = 0; 4906 4907 msg = nl80211_scan_common(drv, NL80211_CMD_TRIGGER_SCAN, params, 4908 bss->wdev_id_set ? &bss->wdev_id : NULL); 4909 if (!msg) 4910 return -1; 4911 4912 if (params->p2p_probe) { 4913 struct nlattr *rates; 4914 4915 wpa_printf(MSG_DEBUG, "nl80211: P2P probe - mask SuppRates"); 4916 4917 rates = nla_nest_start(msg, NL80211_ATTR_SCAN_SUPP_RATES); 4918 if (rates == NULL) 4919 goto nla_put_failure; 4920 4921 /* 4922 * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates 4923 * by masking out everything else apart from the OFDM rates 6, 4924 * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz 4925 * rates are left enabled. 4926 */ 4927 NLA_PUT(msg, NL80211_BAND_2GHZ, 8, 4928 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 4929 nla_nest_end(msg, rates); 4930 4931 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 4932 } 4933 4934 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4935 msg = NULL; 4936 if (ret) { 4937 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d " 4938 "(%s)", ret, strerror(-ret)); 4939 if (drv->hostapd && is_ap_interface(drv->nlmode)) { 4940 enum nl80211_iftype old_mode = drv->nlmode; 4941 4942 /* 4943 * mac80211 does not allow scan requests in AP mode, so 4944 * try to do this in station mode. 4945 */ 4946 if (wpa_driver_nl80211_set_mode( 4947 bss, NL80211_IFTYPE_STATION)) 4948 goto nla_put_failure; 4949 4950 if (wpa_driver_nl80211_scan(bss, params)) { 4951 wpa_driver_nl80211_set_mode(bss, drv->nlmode); 4952 goto nla_put_failure; 4953 } 4954 4955 /* Restore AP mode when processing scan results */ 4956 drv->ap_scan_as_station = old_mode; 4957 ret = 0; 4958 } else 4959 goto nla_put_failure; 4960 } 4961 4962 drv->scan_state = SCAN_REQUESTED; 4963 /* Not all drivers generate "scan completed" wireless event, so try to 4964 * read results after a timeout. */ 4965 timeout = 10; 4966 if (drv->scan_complete_events) { 4967 /* 4968 * The driver seems to deliver events to notify when scan is 4969 * complete, so use longer timeout to avoid race conditions 4970 * with scanning and following association request. 4971 */ 4972 timeout = 30; 4973 } 4974 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d " 4975 "seconds", ret, timeout); 4976 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 4977 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout, 4978 drv, drv->ctx); 4979 4980nla_put_failure: 4981 nlmsg_free(msg); 4982 return ret; 4983} 4984 4985 4986/** 4987 * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan 4988 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 4989 * @params: Scan parameters 4990 * @interval: Interval between scan cycles in milliseconds 4991 * Returns: 0 on success, -1 on failure or if not supported 4992 */ 4993static int wpa_driver_nl80211_sched_scan(void *priv, 4994 struct wpa_driver_scan_params *params, 4995 u32 interval) 4996{ 4997 struct i802_bss *bss = priv; 4998 struct wpa_driver_nl80211_data *drv = bss->drv; 4999 int ret = -1; 5000 struct nl_msg *msg; 5001 size_t i; 5002 5003 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: sched_scan request"); 5004 5005#ifdef ANDROID 5006 if (!drv->capa.sched_scan_supported) 5007 return android_pno_start(bss, params); 5008#endif /* ANDROID */ 5009 5010 msg = nl80211_scan_common(drv, NL80211_CMD_START_SCHED_SCAN, params, 5011 bss->wdev_id_set ? &bss->wdev_id : NULL); 5012 if (!msg) 5013 goto nla_put_failure; 5014 5015 NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval); 5016 5017 if ((drv->num_filter_ssids && 5018 (int) drv->num_filter_ssids <= drv->capa.max_match_sets) || 5019 params->filter_rssi) { 5020 struct nlattr *match_sets; 5021 match_sets = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH); 5022 if (match_sets == NULL) 5023 goto nla_put_failure; 5024 5025 for (i = 0; i < drv->num_filter_ssids; i++) { 5026 struct nlattr *match_set_ssid; 5027 wpa_hexdump_ascii(MSG_MSGDUMP, 5028 "nl80211: Sched scan filter SSID", 5029 drv->filter_ssids[i].ssid, 5030 drv->filter_ssids[i].ssid_len); 5031 5032 match_set_ssid = nla_nest_start(msg, i + 1); 5033 if (match_set_ssid == NULL) 5034 goto nla_put_failure; 5035 NLA_PUT(msg, NL80211_ATTR_SCHED_SCAN_MATCH_SSID, 5036 drv->filter_ssids[i].ssid_len, 5037 drv->filter_ssids[i].ssid); 5038 if (params->filter_rssi) 5039 NLA_PUT_U32(msg, 5040 NL80211_SCHED_SCAN_MATCH_ATTR_RSSI, 5041 params->filter_rssi); 5042 5043 nla_nest_end(msg, match_set_ssid); 5044 } 5045 5046 /* 5047 * Due to backward compatibility code, newer kernels treat this 5048 * matchset (with only an RSSI filter) as the default for all 5049 * other matchsets, unless it's the only one, in which case the 5050 * matchset will actually allow all SSIDs above the RSSI. 5051 */ 5052 if (params->filter_rssi) { 5053 struct nlattr *match_set_rssi; 5054 match_set_rssi = nla_nest_start(msg, 0); 5055 if (match_set_rssi == NULL) 5056 goto nla_put_failure; 5057 NLA_PUT_U32(msg, NL80211_SCHED_SCAN_MATCH_ATTR_RSSI, 5058 params->filter_rssi); 5059 wpa_printf(MSG_MSGDUMP, 5060 "nl80211: Sched scan RSSI filter %d dBm", 5061 params->filter_rssi); 5062 nla_nest_end(msg, match_set_rssi); 5063 } 5064 5065 nla_nest_end(msg, match_sets); 5066 } 5067 5068 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5069 5070 /* TODO: if we get an error here, we should fall back to normal scan */ 5071 5072 msg = NULL; 5073 if (ret) { 5074 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: " 5075 "ret=%d (%s)", ret, strerror(-ret)); 5076 goto nla_put_failure; 5077 } 5078 5079 wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - " 5080 "scan interval %d msec", ret, interval); 5081 5082nla_put_failure: 5083 nlmsg_free(msg); 5084 return ret; 5085} 5086 5087 5088/** 5089 * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan 5090 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 5091 * Returns: 0 on success, -1 on failure or if not supported 5092 */ 5093static int wpa_driver_nl80211_stop_sched_scan(void *priv) 5094{ 5095 struct i802_bss *bss = priv; 5096 struct wpa_driver_nl80211_data *drv = bss->drv; 5097 int ret = 0; 5098 struct nl_msg *msg; 5099 5100#ifdef ANDROID 5101 if (!drv->capa.sched_scan_supported) 5102 return android_pno_stop(bss); 5103#endif /* ANDROID */ 5104 5105 msg = nlmsg_alloc(); 5106 if (!msg) 5107 return -1; 5108 5109 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN); 5110 5111 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5112 5113 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5114 msg = NULL; 5115 if (ret) { 5116 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: " 5117 "ret=%d (%s)", ret, strerror(-ret)); 5118 goto nla_put_failure; 5119 } 5120 5121 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret); 5122 5123nla_put_failure: 5124 nlmsg_free(msg); 5125 return ret; 5126} 5127 5128 5129static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie) 5130{ 5131 const u8 *end, *pos; 5132 5133 if (ies == NULL) 5134 return NULL; 5135 5136 pos = ies; 5137 end = ies + ies_len; 5138 5139 while (pos + 1 < end) { 5140 if (pos + 2 + pos[1] > end) 5141 break; 5142 if (pos[0] == ie) 5143 return pos; 5144 pos += 2 + pos[1]; 5145 } 5146 5147 return NULL; 5148} 5149 5150 5151static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv, 5152 const u8 *ie, size_t ie_len) 5153{ 5154 const u8 *ssid; 5155 size_t i; 5156 5157 if (drv->filter_ssids == NULL) 5158 return 0; 5159 5160 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID); 5161 if (ssid == NULL) 5162 return 1; 5163 5164 for (i = 0; i < drv->num_filter_ssids; i++) { 5165 if (ssid[1] == drv->filter_ssids[i].ssid_len && 5166 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) == 5167 0) 5168 return 0; 5169 } 5170 5171 return 1; 5172} 5173 5174 5175static int bss_info_handler(struct nl_msg *msg, void *arg) 5176{ 5177 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 5178 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 5179 struct nlattr *bss[NL80211_BSS_MAX + 1]; 5180 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = { 5181 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC }, 5182 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 }, 5183 [NL80211_BSS_TSF] = { .type = NLA_U64 }, 5184 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 }, 5185 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 }, 5186 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC }, 5187 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 }, 5188 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 }, 5189 [NL80211_BSS_STATUS] = { .type = NLA_U32 }, 5190 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 }, 5191 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC }, 5192 }; 5193 struct nl80211_bss_info_arg *_arg = arg; 5194 struct wpa_scan_results *res = _arg->res; 5195 struct wpa_scan_res **tmp; 5196 struct wpa_scan_res *r; 5197 const u8 *ie, *beacon_ie; 5198 size_t ie_len, beacon_ie_len; 5199 u8 *pos; 5200 size_t i; 5201 5202 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 5203 genlmsg_attrlen(gnlh, 0), NULL); 5204 if (!tb[NL80211_ATTR_BSS]) 5205 return NL_SKIP; 5206 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS], 5207 bss_policy)) 5208 return NL_SKIP; 5209 if (bss[NL80211_BSS_STATUS]) { 5210 enum nl80211_bss_status status; 5211 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 5212 if (status == NL80211_BSS_STATUS_ASSOCIATED && 5213 bss[NL80211_BSS_FREQUENCY]) { 5214 _arg->assoc_freq = 5215 nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 5216 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz", 5217 _arg->assoc_freq); 5218 } 5219 if (status == NL80211_BSS_STATUS_ASSOCIATED && 5220 bss[NL80211_BSS_BSSID]) { 5221 os_memcpy(_arg->assoc_bssid, 5222 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN); 5223 wpa_printf(MSG_DEBUG, "nl80211: Associated with " 5224 MACSTR, MAC2STR(_arg->assoc_bssid)); 5225 } 5226 } 5227 if (!res) 5228 return NL_SKIP; 5229 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) { 5230 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 5231 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 5232 } else { 5233 ie = NULL; 5234 ie_len = 0; 5235 } 5236 if (bss[NL80211_BSS_BEACON_IES]) { 5237 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]); 5238 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]); 5239 } else { 5240 beacon_ie = NULL; 5241 beacon_ie_len = 0; 5242 } 5243 5244 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie, 5245 ie ? ie_len : beacon_ie_len)) 5246 return NL_SKIP; 5247 5248 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len); 5249 if (r == NULL) 5250 return NL_SKIP; 5251 if (bss[NL80211_BSS_BSSID]) 5252 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]), 5253 ETH_ALEN); 5254 if (bss[NL80211_BSS_FREQUENCY]) 5255 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 5256 if (bss[NL80211_BSS_BEACON_INTERVAL]) 5257 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]); 5258 if (bss[NL80211_BSS_CAPABILITY]) 5259 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]); 5260 r->flags |= WPA_SCAN_NOISE_INVALID; 5261 if (bss[NL80211_BSS_SIGNAL_MBM]) { 5262 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]); 5263 r->level /= 100; /* mBm to dBm */ 5264 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID; 5265 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) { 5266 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]); 5267 r->flags |= WPA_SCAN_QUAL_INVALID; 5268 } else 5269 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID; 5270 if (bss[NL80211_BSS_TSF]) 5271 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]); 5272 if (bss[NL80211_BSS_SEEN_MS_AGO]) 5273 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]); 5274 r->ie_len = ie_len; 5275 pos = (u8 *) (r + 1); 5276 if (ie) { 5277 os_memcpy(pos, ie, ie_len); 5278 pos += ie_len; 5279 } 5280 r->beacon_ie_len = beacon_ie_len; 5281 if (beacon_ie) 5282 os_memcpy(pos, beacon_ie, beacon_ie_len); 5283 5284 if (bss[NL80211_BSS_STATUS]) { 5285 enum nl80211_bss_status status; 5286 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 5287 switch (status) { 5288 case NL80211_BSS_STATUS_AUTHENTICATED: 5289 r->flags |= WPA_SCAN_AUTHENTICATED; 5290 break; 5291 case NL80211_BSS_STATUS_ASSOCIATED: 5292 r->flags |= WPA_SCAN_ASSOCIATED; 5293 break; 5294 default: 5295 break; 5296 } 5297 } 5298 5299 /* 5300 * cfg80211 maintains separate BSS table entries for APs if the same 5301 * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does 5302 * not use frequency as a separate key in the BSS table, so filter out 5303 * duplicated entries. Prefer associated BSS entry in such a case in 5304 * order to get the correct frequency into the BSS table. Similarly, 5305 * prefer newer entries over older. 5306 */ 5307 for (i = 0; i < res->num; i++) { 5308 const u8 *s1, *s2; 5309 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0) 5310 continue; 5311 5312 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1), 5313 res->res[i]->ie_len, WLAN_EID_SSID); 5314 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID); 5315 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] || 5316 os_memcmp(s1, s2, 2 + s1[1]) != 0) 5317 continue; 5318 5319 /* Same BSSID,SSID was already included in scan results */ 5320 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result " 5321 "for " MACSTR, MAC2STR(r->bssid)); 5322 5323 if (((r->flags & WPA_SCAN_ASSOCIATED) && 5324 !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) || 5325 r->age < res->res[i]->age) { 5326 os_free(res->res[i]); 5327 res->res[i] = r; 5328 } else 5329 os_free(r); 5330 return NL_SKIP; 5331 } 5332 5333 tmp = os_realloc_array(res->res, res->num + 1, 5334 sizeof(struct wpa_scan_res *)); 5335 if (tmp == NULL) { 5336 os_free(r); 5337 return NL_SKIP; 5338 } 5339 tmp[res->num++] = r; 5340 res->res = tmp; 5341 5342 return NL_SKIP; 5343} 5344 5345 5346static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv, 5347 const u8 *addr) 5348{ 5349 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 5350 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state " 5351 "mismatch (" MACSTR ")", MAC2STR(addr)); 5352 wpa_driver_nl80211_mlme(drv, addr, 5353 NL80211_CMD_DEAUTHENTICATE, 5354 WLAN_REASON_PREV_AUTH_NOT_VALID, 1); 5355 } 5356} 5357 5358 5359static void wpa_driver_nl80211_check_bss_status( 5360 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res) 5361{ 5362 size_t i; 5363 5364 for (i = 0; i < res->num; i++) { 5365 struct wpa_scan_res *r = res->res[i]; 5366 if (r->flags & WPA_SCAN_AUTHENTICATED) { 5367 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 5368 "indicates BSS status with " MACSTR 5369 " as authenticated", 5370 MAC2STR(r->bssid)); 5371 if (is_sta_interface(drv->nlmode) && 5372 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 && 5373 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) != 5374 0) { 5375 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID" 5376 " in local state (auth=" MACSTR 5377 " assoc=" MACSTR ")", 5378 MAC2STR(drv->auth_bssid), 5379 MAC2STR(drv->bssid)); 5380 clear_state_mismatch(drv, r->bssid); 5381 } 5382 } 5383 5384 if (r->flags & WPA_SCAN_ASSOCIATED) { 5385 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 5386 "indicate BSS status with " MACSTR 5387 " as associated", 5388 MAC2STR(r->bssid)); 5389 if (is_sta_interface(drv->nlmode) && 5390 !drv->associated) { 5391 wpa_printf(MSG_DEBUG, "nl80211: Local state " 5392 "(not associated) does not match " 5393 "with BSS state"); 5394 clear_state_mismatch(drv, r->bssid); 5395 } else if (is_sta_interface(drv->nlmode) && 5396 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) != 5397 0) { 5398 wpa_printf(MSG_DEBUG, "nl80211: Local state " 5399 "(associated with " MACSTR ") does " 5400 "not match with BSS state", 5401 MAC2STR(drv->bssid)); 5402 clear_state_mismatch(drv, r->bssid); 5403 clear_state_mismatch(drv, drv->bssid); 5404 } 5405 } 5406 } 5407} 5408 5409 5410static struct wpa_scan_results * 5411nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv) 5412{ 5413 struct nl_msg *msg; 5414 struct wpa_scan_results *res; 5415 int ret; 5416 struct nl80211_bss_info_arg arg; 5417 5418 res = os_zalloc(sizeof(*res)); 5419 if (res == NULL) 5420 return NULL; 5421 msg = nlmsg_alloc(); 5422 if (!msg) 5423 goto nla_put_failure; 5424 5425 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 5426 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 5427 goto nla_put_failure; 5428 5429 arg.drv = drv; 5430 arg.res = res; 5431 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 5432 msg = NULL; 5433 if (ret == 0) { 5434 wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu " 5435 "BSSes)", (unsigned long) res->num); 5436 nl80211_get_noise_for_scan_results(drv, res); 5437 return res; 5438 } 5439 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 5440 "(%s)", ret, strerror(-ret)); 5441nla_put_failure: 5442 nlmsg_free(msg); 5443 wpa_scan_results_free(res); 5444 return NULL; 5445} 5446 5447 5448/** 5449 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results 5450 * @priv: Pointer to private wext data from wpa_driver_nl80211_init() 5451 * Returns: Scan results on success, -1 on failure 5452 */ 5453static struct wpa_scan_results * 5454wpa_driver_nl80211_get_scan_results(void *priv) 5455{ 5456 struct i802_bss *bss = priv; 5457 struct wpa_driver_nl80211_data *drv = bss->drv; 5458 struct wpa_scan_results *res; 5459 5460 res = nl80211_get_scan_results(drv); 5461 if (res) 5462 wpa_driver_nl80211_check_bss_status(drv, res); 5463 return res; 5464} 5465 5466 5467static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv) 5468{ 5469 struct wpa_scan_results *res; 5470 size_t i; 5471 5472 res = nl80211_get_scan_results(drv); 5473 if (res == NULL) { 5474 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results"); 5475 return; 5476 } 5477 5478 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump"); 5479 for (i = 0; i < res->num; i++) { 5480 struct wpa_scan_res *r = res->res[i]; 5481 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s", 5482 (int) i, (int) res->num, MAC2STR(r->bssid), 5483 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "", 5484 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : ""); 5485 } 5486 5487 wpa_scan_results_free(res); 5488} 5489 5490 5491static u32 wpa_alg_to_cipher_suite(enum wpa_alg alg, size_t key_len) 5492{ 5493 switch (alg) { 5494 case WPA_ALG_WEP: 5495 if (key_len == 5) 5496 return WLAN_CIPHER_SUITE_WEP40; 5497 return WLAN_CIPHER_SUITE_WEP104; 5498 case WPA_ALG_TKIP: 5499 return WLAN_CIPHER_SUITE_TKIP; 5500 case WPA_ALG_CCMP: 5501 return WLAN_CIPHER_SUITE_CCMP; 5502 case WPA_ALG_GCMP: 5503 return WLAN_CIPHER_SUITE_GCMP; 5504 case WPA_ALG_CCMP_256: 5505 return WLAN_CIPHER_SUITE_CCMP_256; 5506 case WPA_ALG_GCMP_256: 5507 return WLAN_CIPHER_SUITE_GCMP_256; 5508 case WPA_ALG_IGTK: 5509 return WLAN_CIPHER_SUITE_AES_CMAC; 5510 case WPA_ALG_BIP_GMAC_128: 5511 return WLAN_CIPHER_SUITE_BIP_GMAC_128; 5512 case WPA_ALG_BIP_GMAC_256: 5513 return WLAN_CIPHER_SUITE_BIP_GMAC_256; 5514 case WPA_ALG_BIP_CMAC_256: 5515 return WLAN_CIPHER_SUITE_BIP_CMAC_256; 5516 case WPA_ALG_SMS4: 5517 return WLAN_CIPHER_SUITE_SMS4; 5518 case WPA_ALG_KRK: 5519 return WLAN_CIPHER_SUITE_KRK; 5520 case WPA_ALG_NONE: 5521 case WPA_ALG_PMK: 5522 wpa_printf(MSG_ERROR, "nl80211: Unexpected encryption algorithm %d", 5523 alg); 5524 return 0; 5525 } 5526 5527 wpa_printf(MSG_ERROR, "nl80211: Unsupported encryption algorithm %d", 5528 alg); 5529 return 0; 5530} 5531 5532 5533static u32 wpa_cipher_to_cipher_suite(unsigned int cipher) 5534{ 5535 switch (cipher) { 5536 case WPA_CIPHER_CCMP_256: 5537 return WLAN_CIPHER_SUITE_CCMP_256; 5538 case WPA_CIPHER_GCMP_256: 5539 return WLAN_CIPHER_SUITE_GCMP_256; 5540 case WPA_CIPHER_CCMP: 5541 return WLAN_CIPHER_SUITE_CCMP; 5542 case WPA_CIPHER_GCMP: 5543 return WLAN_CIPHER_SUITE_GCMP; 5544 case WPA_CIPHER_TKIP: 5545 return WLAN_CIPHER_SUITE_TKIP; 5546 case WPA_CIPHER_WEP104: 5547 return WLAN_CIPHER_SUITE_WEP104; 5548 case WPA_CIPHER_WEP40: 5549 return WLAN_CIPHER_SUITE_WEP40; 5550 case WPA_CIPHER_GTK_NOT_USED: 5551 return WLAN_CIPHER_SUITE_NO_GROUP_ADDR; 5552 } 5553 5554 return 0; 5555} 5556 5557 5558static int wpa_cipher_to_cipher_suites(unsigned int ciphers, u32 suites[], 5559 int max_suites) 5560{ 5561 int num_suites = 0; 5562 5563 if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP_256) 5564 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP_256; 5565 if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP_256) 5566 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP_256; 5567 if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP) 5568 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP; 5569 if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP) 5570 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP; 5571 if (num_suites < max_suites && ciphers & WPA_CIPHER_TKIP) 5572 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP; 5573 if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP104) 5574 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104; 5575 if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP40) 5576 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40; 5577 5578 return num_suites; 5579} 5580 5581 5582static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss, 5583 enum wpa_alg alg, const u8 *addr, 5584 int key_idx, int set_tx, 5585 const u8 *seq, size_t seq_len, 5586 const u8 *key, size_t key_len) 5587{ 5588 struct wpa_driver_nl80211_data *drv = bss->drv; 5589 int ifindex; 5590 struct nl_msg *msg; 5591 int ret; 5592 int tdls = 0; 5593 5594 /* Ignore for P2P Device */ 5595 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 5596 return 0; 5597 5598 ifindex = if_nametoindex(ifname); 5599 wpa_printf(MSG_DEBUG, "%s: ifindex=%d (%s) alg=%d addr=%p key_idx=%d " 5600 "set_tx=%d seq_len=%lu key_len=%lu", 5601 __func__, ifindex, ifname, alg, addr, key_idx, set_tx, 5602 (unsigned long) seq_len, (unsigned long) key_len); 5603#ifdef CONFIG_TDLS 5604 if (key_idx == -1) { 5605 key_idx = 0; 5606 tdls = 1; 5607 } 5608#endif /* CONFIG_TDLS */ 5609 5610 msg = nlmsg_alloc(); 5611 if (!msg) 5612 return -ENOMEM; 5613 5614 if (alg == WPA_ALG_NONE) { 5615 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY); 5616 } else { 5617 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY); 5618 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key); 5619 wpa_hexdump_key(MSG_DEBUG, "nl80211: KEY_DATA", key, key_len); 5620 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5621 wpa_alg_to_cipher_suite(alg, key_len)); 5622 } 5623 5624 if (seq && seq_len) { 5625 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq); 5626 wpa_hexdump(MSG_DEBUG, "nl80211: KEY_SEQ", seq, seq_len); 5627 } 5628 5629 if (addr && !is_broadcast_ether_addr(addr)) { 5630 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr)); 5631 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 5632 5633 if (alg != WPA_ALG_WEP && key_idx && !set_tx) { 5634 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK"); 5635 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, 5636 NL80211_KEYTYPE_GROUP); 5637 } 5638 } else if (addr && is_broadcast_ether_addr(addr)) { 5639 struct nlattr *types; 5640 5641 wpa_printf(MSG_DEBUG, " broadcast key"); 5642 5643 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5644 if (!types) 5645 goto nla_put_failure; 5646 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 5647 nla_nest_end(msg, types); 5648 } 5649 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 5650 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5651 5652 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5653 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE) 5654 ret = 0; 5655 if (ret) 5656 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)", 5657 ret, strerror(-ret)); 5658 5659 /* 5660 * If we failed or don't need to set the default TX key (below), 5661 * we're done here. 5662 */ 5663 if (ret || !set_tx || alg == WPA_ALG_NONE || tdls) 5664 return ret; 5665 if (is_ap_interface(drv->nlmode) && addr && 5666 !is_broadcast_ether_addr(addr)) 5667 return ret; 5668 5669 msg = nlmsg_alloc(); 5670 if (!msg) 5671 return -ENOMEM; 5672 5673 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY); 5674 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 5675 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5676 if (alg == WPA_ALG_IGTK) 5677 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT); 5678 else 5679 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT); 5680 if (addr && is_broadcast_ether_addr(addr)) { 5681 struct nlattr *types; 5682 5683 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5684 if (!types) 5685 goto nla_put_failure; 5686 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 5687 nla_nest_end(msg, types); 5688 } else if (addr) { 5689 struct nlattr *types; 5690 5691 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5692 if (!types) 5693 goto nla_put_failure; 5694 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_UNICAST); 5695 nla_nest_end(msg, types); 5696 } 5697 5698 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5699 if (ret == -ENOENT) 5700 ret = 0; 5701 if (ret) 5702 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; " 5703 "err=%d %s)", ret, strerror(-ret)); 5704 return ret; 5705 5706nla_put_failure: 5707 nlmsg_free(msg); 5708 return -ENOBUFS; 5709} 5710 5711 5712static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg, 5713 int key_idx, int defkey, 5714 const u8 *seq, size_t seq_len, 5715 const u8 *key, size_t key_len) 5716{ 5717 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY); 5718 if (!key_attr) 5719 return -1; 5720 5721 if (defkey && alg == WPA_ALG_IGTK) 5722 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT); 5723 else if (defkey) 5724 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 5725 5726 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx); 5727 5728 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5729 wpa_alg_to_cipher_suite(alg, key_len)); 5730 5731 if (seq && seq_len) 5732 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq); 5733 5734 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key); 5735 5736 nla_nest_end(msg, key_attr); 5737 5738 return 0; 5739 nla_put_failure: 5740 return -1; 5741} 5742 5743 5744static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params, 5745 struct nl_msg *msg) 5746{ 5747 int i, privacy = 0; 5748 struct nlattr *nl_keys, *nl_key; 5749 5750 for (i = 0; i < 4; i++) { 5751 if (!params->wep_key[i]) 5752 continue; 5753 privacy = 1; 5754 break; 5755 } 5756 if (params->wps == WPS_MODE_PRIVACY) 5757 privacy = 1; 5758 if (params->pairwise_suite && 5759 params->pairwise_suite != WPA_CIPHER_NONE) 5760 privacy = 1; 5761 5762 if (!privacy) 5763 return 0; 5764 5765 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 5766 5767 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS); 5768 if (!nl_keys) 5769 goto nla_put_failure; 5770 5771 for (i = 0; i < 4; i++) { 5772 if (!params->wep_key[i]) 5773 continue; 5774 5775 nl_key = nla_nest_start(msg, i); 5776 if (!nl_key) 5777 goto nla_put_failure; 5778 5779 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i], 5780 params->wep_key[i]); 5781 if (params->wep_key_len[i] == 5) 5782 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5783 WLAN_CIPHER_SUITE_WEP40); 5784 else 5785 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5786 WLAN_CIPHER_SUITE_WEP104); 5787 5788 NLA_PUT_U8(msg, NL80211_KEY_IDX, i); 5789 5790 if (i == params->wep_tx_keyidx) 5791 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 5792 5793 nla_nest_end(msg, nl_key); 5794 } 5795 nla_nest_end(msg, nl_keys); 5796 5797 return 0; 5798 5799nla_put_failure: 5800 return -ENOBUFS; 5801} 5802 5803 5804static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 5805 const u8 *addr, int cmd, u16 reason_code, 5806 int local_state_change) 5807{ 5808 int ret = -1; 5809 struct nl_msg *msg; 5810 5811 msg = nlmsg_alloc(); 5812 if (!msg) 5813 return -1; 5814 5815 nl80211_cmd(drv, msg, 0, cmd); 5816 5817 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5818 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code); 5819 if (addr) 5820 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 5821 if (local_state_change) 5822 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 5823 5824 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5825 msg = NULL; 5826 if (ret) { 5827 wpa_dbg(drv->ctx, MSG_DEBUG, 5828 "nl80211: MLME command failed: reason=%u ret=%d (%s)", 5829 reason_code, ret, strerror(-ret)); 5830 goto nla_put_failure; 5831 } 5832 ret = 0; 5833 5834nla_put_failure: 5835 nlmsg_free(msg); 5836 return ret; 5837} 5838 5839 5840static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv, 5841 int reason_code) 5842{ 5843 int ret; 5844 5845 wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code); 5846 nl80211_mark_disconnected(drv); 5847 /* Disconnect command doesn't need BSSID - it uses cached value */ 5848 ret = wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT, 5849 reason_code, 0); 5850 /* 5851 * For locally generated disconnect, supplicant already generates a 5852 * DEAUTH event, so ignore the event from NL80211. 5853 */ 5854 drv->ignore_next_local_disconnect = ret == 0; 5855 5856 return ret; 5857} 5858 5859 5860static int wpa_driver_nl80211_deauthenticate(struct i802_bss *bss, 5861 const u8 *addr, int reason_code) 5862{ 5863 struct wpa_driver_nl80211_data *drv = bss->drv; 5864 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) 5865 return wpa_driver_nl80211_disconnect(drv, reason_code); 5866 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)", 5867 __func__, MAC2STR(addr), reason_code); 5868 nl80211_mark_disconnected(drv); 5869 if (drv->nlmode == NL80211_IFTYPE_ADHOC) 5870 return nl80211_leave_ibss(drv); 5871 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE, 5872 reason_code, 0); 5873} 5874 5875 5876static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv, 5877 struct wpa_driver_auth_params *params) 5878{ 5879 int i; 5880 5881 drv->auth_freq = params->freq; 5882 drv->auth_alg = params->auth_alg; 5883 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx; 5884 drv->auth_local_state_change = params->local_state_change; 5885 drv->auth_p2p = params->p2p; 5886 5887 if (params->bssid) 5888 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN); 5889 else 5890 os_memset(drv->auth_bssid_, 0, ETH_ALEN); 5891 5892 if (params->ssid) { 5893 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len); 5894 drv->auth_ssid_len = params->ssid_len; 5895 } else 5896 drv->auth_ssid_len = 0; 5897 5898 5899 os_free(drv->auth_ie); 5900 drv->auth_ie = NULL; 5901 drv->auth_ie_len = 0; 5902 if (params->ie) { 5903 drv->auth_ie = os_malloc(params->ie_len); 5904 if (drv->auth_ie) { 5905 os_memcpy(drv->auth_ie, params->ie, params->ie_len); 5906 drv->auth_ie_len = params->ie_len; 5907 } 5908 } 5909 5910 for (i = 0; i < 4; i++) { 5911 if (params->wep_key[i] && params->wep_key_len[i] && 5912 params->wep_key_len[i] <= 16) { 5913 os_memcpy(drv->auth_wep_key[i], params->wep_key[i], 5914 params->wep_key_len[i]); 5915 drv->auth_wep_key_len[i] = params->wep_key_len[i]; 5916 } else 5917 drv->auth_wep_key_len[i] = 0; 5918 } 5919} 5920 5921 5922static int wpa_driver_nl80211_authenticate( 5923 struct i802_bss *bss, struct wpa_driver_auth_params *params) 5924{ 5925 struct wpa_driver_nl80211_data *drv = bss->drv; 5926 int ret = -1, i; 5927 struct nl_msg *msg; 5928 enum nl80211_auth_type type; 5929 enum nl80211_iftype nlmode; 5930 int count = 0; 5931 int is_retry; 5932 5933 is_retry = drv->retry_auth; 5934 drv->retry_auth = 0; 5935 drv->ignore_deauth_event = 0; 5936 5937 nl80211_mark_disconnected(drv); 5938 os_memset(drv->auth_bssid, 0, ETH_ALEN); 5939 if (params->bssid) 5940 os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN); 5941 else 5942 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 5943 /* FIX: IBSS mode */ 5944 nlmode = params->p2p ? 5945 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 5946 if (drv->nlmode != nlmode && 5947 wpa_driver_nl80211_set_mode(bss, nlmode) < 0) 5948 return -1; 5949 5950retry: 5951 msg = nlmsg_alloc(); 5952 if (!msg) 5953 return -1; 5954 5955 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)", 5956 drv->ifindex); 5957 5958 nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE); 5959 5960 for (i = 0; i < 4; i++) { 5961 if (!params->wep_key[i]) 5962 continue; 5963 wpa_driver_nl80211_set_key(bss->ifname, bss, WPA_ALG_WEP, 5964 NULL, i, 5965 i == params->wep_tx_keyidx, NULL, 0, 5966 params->wep_key[i], 5967 params->wep_key_len[i]); 5968 if (params->wep_tx_keyidx != i) 5969 continue; 5970 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0, 5971 params->wep_key[i], params->wep_key_len[i])) { 5972 nlmsg_free(msg); 5973 return -1; 5974 } 5975 } 5976 5977 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5978 if (params->bssid) { 5979 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 5980 MAC2STR(params->bssid)); 5981 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 5982 } 5983 if (params->freq) { 5984 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 5985 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 5986 } 5987 if (params->ssid) { 5988 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 5989 params->ssid, params->ssid_len); 5990 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 5991 params->ssid); 5992 } 5993 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len); 5994 if (params->ie) 5995 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie); 5996 if (params->sae_data) { 5997 wpa_hexdump(MSG_DEBUG, " * SAE data", params->sae_data, 5998 params->sae_data_len); 5999 NLA_PUT(msg, NL80211_ATTR_SAE_DATA, params->sae_data_len, 6000 params->sae_data); 6001 } 6002 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 6003 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 6004 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 6005 type = NL80211_AUTHTYPE_SHARED_KEY; 6006 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 6007 type = NL80211_AUTHTYPE_NETWORK_EAP; 6008 else if (params->auth_alg & WPA_AUTH_ALG_FT) 6009 type = NL80211_AUTHTYPE_FT; 6010 else if (params->auth_alg & WPA_AUTH_ALG_SAE) 6011 type = NL80211_AUTHTYPE_SAE; 6012 else 6013 goto nla_put_failure; 6014 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 6015 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 6016 if (params->local_state_change) { 6017 wpa_printf(MSG_DEBUG, " * Local state change only"); 6018 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 6019 } 6020 6021 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6022 msg = NULL; 6023 if (ret) { 6024 wpa_dbg(drv->ctx, MSG_DEBUG, 6025 "nl80211: MLME command failed (auth): ret=%d (%s)", 6026 ret, strerror(-ret)); 6027 count++; 6028 if (ret == -EALREADY && count == 1 && params->bssid && 6029 !params->local_state_change) { 6030 /* 6031 * mac80211 does not currently accept new 6032 * authentication if we are already authenticated. As a 6033 * workaround, force deauthentication and try again. 6034 */ 6035 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication " 6036 "after forced deauthentication"); 6037 drv->ignore_deauth_event = 1; 6038 wpa_driver_nl80211_deauthenticate( 6039 bss, params->bssid, 6040 WLAN_REASON_PREV_AUTH_NOT_VALID); 6041 nlmsg_free(msg); 6042 goto retry; 6043 } 6044 6045 if (ret == -ENOENT && params->freq && !is_retry) { 6046 /* 6047 * cfg80211 has likely expired the BSS entry even 6048 * though it was previously available in our internal 6049 * BSS table. To recover quickly, start a single 6050 * channel scan on the specified channel. 6051 */ 6052 struct wpa_driver_scan_params scan; 6053 int freqs[2]; 6054 6055 os_memset(&scan, 0, sizeof(scan)); 6056 scan.num_ssids = 1; 6057 if (params->ssid) { 6058 scan.ssids[0].ssid = params->ssid; 6059 scan.ssids[0].ssid_len = params->ssid_len; 6060 } 6061 freqs[0] = params->freq; 6062 freqs[1] = 0; 6063 scan.freqs = freqs; 6064 wpa_printf(MSG_DEBUG, "nl80211: Trigger single " 6065 "channel scan to refresh cfg80211 BSS " 6066 "entry"); 6067 ret = wpa_driver_nl80211_scan(bss, &scan); 6068 if (ret == 0) { 6069 nl80211_copy_auth_params(drv, params); 6070 drv->scan_for_auth = 1; 6071 } 6072 } else if (is_retry) { 6073 /* 6074 * Need to indicate this with an event since the return 6075 * value from the retry is not delivered to core code. 6076 */ 6077 union wpa_event_data event; 6078 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry " 6079 "failed"); 6080 os_memset(&event, 0, sizeof(event)); 6081 os_memcpy(event.timeout_event.addr, drv->auth_bssid_, 6082 ETH_ALEN); 6083 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT, 6084 &event); 6085 } 6086 6087 goto nla_put_failure; 6088 } 6089 ret = 0; 6090 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send " 6091 "successfully"); 6092 6093nla_put_failure: 6094 nlmsg_free(msg); 6095 return ret; 6096} 6097 6098 6099static int wpa_driver_nl80211_authenticate_retry( 6100 struct wpa_driver_nl80211_data *drv) 6101{ 6102 struct wpa_driver_auth_params params; 6103 struct i802_bss *bss = drv->first_bss; 6104 int i; 6105 6106 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again"); 6107 6108 os_memset(¶ms, 0, sizeof(params)); 6109 params.freq = drv->auth_freq; 6110 params.auth_alg = drv->auth_alg; 6111 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx; 6112 params.local_state_change = drv->auth_local_state_change; 6113 params.p2p = drv->auth_p2p; 6114 6115 if (!is_zero_ether_addr(drv->auth_bssid_)) 6116 params.bssid = drv->auth_bssid_; 6117 6118 if (drv->auth_ssid_len) { 6119 params.ssid = drv->auth_ssid; 6120 params.ssid_len = drv->auth_ssid_len; 6121 } 6122 6123 params.ie = drv->auth_ie; 6124 params.ie_len = drv->auth_ie_len; 6125 6126 for (i = 0; i < 4; i++) { 6127 if (drv->auth_wep_key_len[i]) { 6128 params.wep_key[i] = drv->auth_wep_key[i]; 6129 params.wep_key_len[i] = drv->auth_wep_key_len[i]; 6130 } 6131 } 6132 6133 drv->retry_auth = 1; 6134 return wpa_driver_nl80211_authenticate(bss, ¶ms); 6135} 6136 6137 6138struct phy_info_arg { 6139 u16 *num_modes; 6140 struct hostapd_hw_modes *modes; 6141 int last_mode, last_chan_idx; 6142}; 6143 6144static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa, 6145 struct nlattr *ampdu_factor, 6146 struct nlattr *ampdu_density, 6147 struct nlattr *mcs_set) 6148{ 6149 if (capa) 6150 mode->ht_capab = nla_get_u16(capa); 6151 6152 if (ampdu_factor) 6153 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03; 6154 6155 if (ampdu_density) 6156 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2; 6157 6158 if (mcs_set && nla_len(mcs_set) >= 16) { 6159 u8 *mcs; 6160 mcs = nla_data(mcs_set); 6161 os_memcpy(mode->mcs_set, mcs, 16); 6162 } 6163} 6164 6165 6166static void phy_info_vht_capa(struct hostapd_hw_modes *mode, 6167 struct nlattr *capa, 6168 struct nlattr *mcs_set) 6169{ 6170 if (capa) 6171 mode->vht_capab = nla_get_u32(capa); 6172 6173 if (mcs_set && nla_len(mcs_set) >= 8) { 6174 u8 *mcs; 6175 mcs = nla_data(mcs_set); 6176 os_memcpy(mode->vht_mcs_set, mcs, 8); 6177 } 6178} 6179 6180 6181static void phy_info_freq(struct hostapd_hw_modes *mode, 6182 struct hostapd_channel_data *chan, 6183 struct nlattr *tb_freq[]) 6184{ 6185 u8 channel; 6186 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]); 6187 chan->flag = 0; 6188 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES) 6189 chan->chan = channel; 6190 6191 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) 6192 chan->flag |= HOSTAPD_CHAN_DISABLED; 6193 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IR]) 6194 chan->flag |= HOSTAPD_CHAN_PASSIVE_SCAN | HOSTAPD_CHAN_NO_IBSS; 6195 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR]) 6196 chan->flag |= HOSTAPD_CHAN_RADAR; 6197 6198 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) { 6199 enum nl80211_dfs_state state = 6200 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]); 6201 6202 switch (state) { 6203 case NL80211_DFS_USABLE: 6204 chan->flag |= HOSTAPD_CHAN_DFS_USABLE; 6205 break; 6206 case NL80211_DFS_AVAILABLE: 6207 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE; 6208 break; 6209 case NL80211_DFS_UNAVAILABLE: 6210 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE; 6211 break; 6212 } 6213 } 6214} 6215 6216 6217static int phy_info_freqs(struct phy_info_arg *phy_info, 6218 struct hostapd_hw_modes *mode, struct nlattr *tb) 6219{ 6220 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 6221 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 }, 6222 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG }, 6223 [NL80211_FREQUENCY_ATTR_NO_IR] = { .type = NLA_FLAG }, 6224 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG }, 6225 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 }, 6226 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 }, 6227 }; 6228 int new_channels = 0; 6229 struct hostapd_channel_data *channel; 6230 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1]; 6231 struct nlattr *nl_freq; 6232 int rem_freq, idx; 6233 6234 if (tb == NULL) 6235 return NL_OK; 6236 6237 nla_for_each_nested(nl_freq, tb, rem_freq) { 6238 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 6239 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 6240 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 6241 continue; 6242 new_channels++; 6243 } 6244 6245 channel = os_realloc_array(mode->channels, 6246 mode->num_channels + new_channels, 6247 sizeof(struct hostapd_channel_data)); 6248 if (!channel) 6249 return NL_SKIP; 6250 6251 mode->channels = channel; 6252 mode->num_channels += new_channels; 6253 6254 idx = phy_info->last_chan_idx; 6255 6256 nla_for_each_nested(nl_freq, tb, rem_freq) { 6257 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 6258 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 6259 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 6260 continue; 6261 phy_info_freq(mode, &mode->channels[idx], tb_freq); 6262 idx++; 6263 } 6264 phy_info->last_chan_idx = idx; 6265 6266 return NL_OK; 6267} 6268 6269 6270static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb) 6271{ 6272 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = { 6273 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 }, 6274 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = 6275 { .type = NLA_FLAG }, 6276 }; 6277 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1]; 6278 struct nlattr *nl_rate; 6279 int rem_rate, idx; 6280 6281 if (tb == NULL) 6282 return NL_OK; 6283 6284 nla_for_each_nested(nl_rate, tb, rem_rate) { 6285 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 6286 nla_data(nl_rate), nla_len(nl_rate), 6287 rate_policy); 6288 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 6289 continue; 6290 mode->num_rates++; 6291 } 6292 6293 mode->rates = os_calloc(mode->num_rates, sizeof(int)); 6294 if (!mode->rates) 6295 return NL_SKIP; 6296 6297 idx = 0; 6298 6299 nla_for_each_nested(nl_rate, tb, rem_rate) { 6300 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 6301 nla_data(nl_rate), nla_len(nl_rate), 6302 rate_policy); 6303 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 6304 continue; 6305 mode->rates[idx] = nla_get_u32( 6306 tb_rate[NL80211_BITRATE_ATTR_RATE]); 6307 idx++; 6308 } 6309 6310 return NL_OK; 6311} 6312 6313 6314static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band) 6315{ 6316 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1]; 6317 struct hostapd_hw_modes *mode; 6318 int ret; 6319 6320 if (phy_info->last_mode != nl_band->nla_type) { 6321 mode = os_realloc_array(phy_info->modes, 6322 *phy_info->num_modes + 1, 6323 sizeof(*mode)); 6324 if (!mode) 6325 return NL_SKIP; 6326 phy_info->modes = mode; 6327 6328 mode = &phy_info->modes[*(phy_info->num_modes)]; 6329 os_memset(mode, 0, sizeof(*mode)); 6330 mode->mode = NUM_HOSTAPD_MODES; 6331 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN | 6332 HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN; 6333 6334 /* 6335 * Unsupported VHT MCS stream is defined as value 3, so the VHT 6336 * MCS RX/TX map must be initialized with 0xffff to mark all 8 6337 * possible streams as unsupported. This will be overridden if 6338 * driver advertises VHT support. 6339 */ 6340 mode->vht_mcs_set[0] = 0xff; 6341 mode->vht_mcs_set[1] = 0xff; 6342 mode->vht_mcs_set[4] = 0xff; 6343 mode->vht_mcs_set[5] = 0xff; 6344 6345 *(phy_info->num_modes) += 1; 6346 phy_info->last_mode = nl_band->nla_type; 6347 phy_info->last_chan_idx = 0; 6348 } else 6349 mode = &phy_info->modes[*(phy_info->num_modes) - 1]; 6350 6351 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band), 6352 nla_len(nl_band), NULL); 6353 6354 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA], 6355 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR], 6356 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY], 6357 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]); 6358 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA], 6359 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]); 6360 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]); 6361 if (ret != NL_OK) 6362 return ret; 6363 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]); 6364 if (ret != NL_OK) 6365 return ret; 6366 6367 return NL_OK; 6368} 6369 6370 6371static int phy_info_handler(struct nl_msg *msg, void *arg) 6372{ 6373 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 6374 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 6375 struct phy_info_arg *phy_info = arg; 6376 struct nlattr *nl_band; 6377 int rem_band; 6378 6379 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 6380 genlmsg_attrlen(gnlh, 0), NULL); 6381 6382 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS]) 6383 return NL_SKIP; 6384 6385 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) 6386 { 6387 int res = phy_info_band(phy_info, nl_band); 6388 if (res != NL_OK) 6389 return res; 6390 } 6391 6392 return NL_SKIP; 6393} 6394 6395 6396static struct hostapd_hw_modes * 6397wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes, 6398 u16 *num_modes) 6399{ 6400 u16 m; 6401 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode; 6402 int i, mode11g_idx = -1; 6403 6404 /* heuristic to set up modes */ 6405 for (m = 0; m < *num_modes; m++) { 6406 if (!modes[m].num_channels) 6407 continue; 6408 if (modes[m].channels[0].freq < 4000) { 6409 modes[m].mode = HOSTAPD_MODE_IEEE80211B; 6410 for (i = 0; i < modes[m].num_rates; i++) { 6411 if (modes[m].rates[i] > 200) { 6412 modes[m].mode = HOSTAPD_MODE_IEEE80211G; 6413 break; 6414 } 6415 } 6416 } else if (modes[m].channels[0].freq > 50000) 6417 modes[m].mode = HOSTAPD_MODE_IEEE80211AD; 6418 else 6419 modes[m].mode = HOSTAPD_MODE_IEEE80211A; 6420 } 6421 6422 /* If only 802.11g mode is included, use it to construct matching 6423 * 802.11b mode data. */ 6424 6425 for (m = 0; m < *num_modes; m++) { 6426 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B) 6427 return modes; /* 802.11b already included */ 6428 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G) 6429 mode11g_idx = m; 6430 } 6431 6432 if (mode11g_idx < 0) 6433 return modes; /* 2.4 GHz band not supported at all */ 6434 6435 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes)); 6436 if (nmodes == NULL) 6437 return modes; /* Could not add 802.11b mode */ 6438 6439 mode = &nmodes[*num_modes]; 6440 os_memset(mode, 0, sizeof(*mode)); 6441 (*num_modes)++; 6442 modes = nmodes; 6443 6444 mode->mode = HOSTAPD_MODE_IEEE80211B; 6445 6446 mode11g = &modes[mode11g_idx]; 6447 mode->num_channels = mode11g->num_channels; 6448 mode->channels = os_malloc(mode11g->num_channels * 6449 sizeof(struct hostapd_channel_data)); 6450 if (mode->channels == NULL) { 6451 (*num_modes)--; 6452 return modes; /* Could not add 802.11b mode */ 6453 } 6454 os_memcpy(mode->channels, mode11g->channels, 6455 mode11g->num_channels * sizeof(struct hostapd_channel_data)); 6456 6457 mode->num_rates = 0; 6458 mode->rates = os_malloc(4 * sizeof(int)); 6459 if (mode->rates == NULL) { 6460 os_free(mode->channels); 6461 (*num_modes)--; 6462 return modes; /* Could not add 802.11b mode */ 6463 } 6464 6465 for (i = 0; i < mode11g->num_rates; i++) { 6466 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 && 6467 mode11g->rates[i] != 55 && mode11g->rates[i] != 110) 6468 continue; 6469 mode->rates[mode->num_rates] = mode11g->rates[i]; 6470 mode->num_rates++; 6471 if (mode->num_rates == 4) 6472 break; 6473 } 6474 6475 if (mode->num_rates == 0) { 6476 os_free(mode->channels); 6477 os_free(mode->rates); 6478 (*num_modes)--; 6479 return modes; /* No 802.11b rates */ 6480 } 6481 6482 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g " 6483 "information"); 6484 6485 return modes; 6486} 6487 6488 6489static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start, 6490 int end) 6491{ 6492 int c; 6493 6494 for (c = 0; c < mode->num_channels; c++) { 6495 struct hostapd_channel_data *chan = &mode->channels[c]; 6496 if (chan->freq - 10 >= start && chan->freq + 10 <= end) 6497 chan->flag |= HOSTAPD_CHAN_HT40; 6498 } 6499} 6500 6501 6502static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start, 6503 int end) 6504{ 6505 int c; 6506 6507 for (c = 0; c < mode->num_channels; c++) { 6508 struct hostapd_channel_data *chan = &mode->channels[c]; 6509 if (!(chan->flag & HOSTAPD_CHAN_HT40)) 6510 continue; 6511 if (chan->freq - 30 >= start && chan->freq - 10 <= end) 6512 chan->flag |= HOSTAPD_CHAN_HT40MINUS; 6513 if (chan->freq + 10 >= start && chan->freq + 30 <= end) 6514 chan->flag |= HOSTAPD_CHAN_HT40PLUS; 6515 } 6516} 6517 6518 6519static void nl80211_reg_rule_max_eirp(u32 start, u32 end, u32 max_eirp, 6520 struct phy_info_arg *results) 6521{ 6522 u16 m; 6523 6524 for (m = 0; m < *results->num_modes; m++) { 6525 int c; 6526 struct hostapd_hw_modes *mode = &results->modes[m]; 6527 6528 for (c = 0; c < mode->num_channels; c++) { 6529 struct hostapd_channel_data *chan = &mode->channels[c]; 6530 if ((u32) chan->freq - 10 >= start && 6531 (u32) chan->freq + 10 <= end) 6532 chan->max_tx_power = max_eirp; 6533 } 6534 } 6535} 6536 6537 6538static void nl80211_reg_rule_ht40(u32 start, u32 end, 6539 struct phy_info_arg *results) 6540{ 6541 u16 m; 6542 6543 for (m = 0; m < *results->num_modes; m++) { 6544 if (!(results->modes[m].ht_capab & 6545 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6546 continue; 6547 nl80211_set_ht40_mode(&results->modes[m], start, end); 6548 } 6549} 6550 6551 6552static void nl80211_reg_rule_sec(struct nlattr *tb[], 6553 struct phy_info_arg *results) 6554{ 6555 u32 start, end, max_bw; 6556 u16 m; 6557 6558 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6559 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 6560 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 6561 return; 6562 6563 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6564 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6565 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6566 6567 if (max_bw < 20) 6568 return; 6569 6570 for (m = 0; m < *results->num_modes; m++) { 6571 if (!(results->modes[m].ht_capab & 6572 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6573 continue; 6574 nl80211_set_ht40_mode_sec(&results->modes[m], start, end); 6575 } 6576} 6577 6578 6579static void nl80211_set_vht_mode(struct hostapd_hw_modes *mode, int start, 6580 int end) 6581{ 6582 int c; 6583 6584 for (c = 0; c < mode->num_channels; c++) { 6585 struct hostapd_channel_data *chan = &mode->channels[c]; 6586 if (chan->freq - 10 >= start && chan->freq + 70 <= end) 6587 chan->flag |= HOSTAPD_CHAN_VHT_10_70; 6588 6589 if (chan->freq - 30 >= start && chan->freq + 50 <= end) 6590 chan->flag |= HOSTAPD_CHAN_VHT_30_50; 6591 6592 if (chan->freq - 50 >= start && chan->freq + 30 <= end) 6593 chan->flag |= HOSTAPD_CHAN_VHT_50_30; 6594 6595 if (chan->freq - 70 >= start && chan->freq + 10 <= end) 6596 chan->flag |= HOSTAPD_CHAN_VHT_70_10; 6597 } 6598} 6599 6600 6601static void nl80211_reg_rule_vht(struct nlattr *tb[], 6602 struct phy_info_arg *results) 6603{ 6604 u32 start, end, max_bw; 6605 u16 m; 6606 6607 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6608 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 6609 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 6610 return; 6611 6612 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6613 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6614 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6615 6616 if (max_bw < 80) 6617 return; 6618 6619 for (m = 0; m < *results->num_modes; m++) { 6620 if (!(results->modes[m].ht_capab & 6621 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6622 continue; 6623 /* TODO: use a real VHT support indication */ 6624 if (!results->modes[m].vht_capab) 6625 continue; 6626 6627 nl80211_set_vht_mode(&results->modes[m], start, end); 6628 } 6629} 6630 6631 6632static const char * dfs_domain_name(enum nl80211_dfs_regions region) 6633{ 6634 switch (region) { 6635 case NL80211_DFS_UNSET: 6636 return "DFS-UNSET"; 6637 case NL80211_DFS_FCC: 6638 return "DFS-FCC"; 6639 case NL80211_DFS_ETSI: 6640 return "DFS-ETSI"; 6641 case NL80211_DFS_JP: 6642 return "DFS-JP"; 6643 default: 6644 return "DFS-invalid"; 6645 } 6646} 6647 6648 6649static int nl80211_get_reg(struct nl_msg *msg, void *arg) 6650{ 6651 struct phy_info_arg *results = arg; 6652 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 6653 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 6654 struct nlattr *nl_rule; 6655 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1]; 6656 int rem_rule; 6657 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 6658 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, 6659 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, 6660 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, 6661 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, 6662 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, 6663 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, 6664 }; 6665 6666 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 6667 genlmsg_attrlen(gnlh, 0), NULL); 6668 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] || 6669 !tb_msg[NL80211_ATTR_REG_RULES]) { 6670 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information " 6671 "available"); 6672 return NL_SKIP; 6673 } 6674 6675 if (tb_msg[NL80211_ATTR_DFS_REGION]) { 6676 enum nl80211_dfs_regions dfs_domain; 6677 dfs_domain = nla_get_u8(tb_msg[NL80211_ATTR_DFS_REGION]); 6678 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s (%s)", 6679 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]), 6680 dfs_domain_name(dfs_domain)); 6681 } else { 6682 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s", 6683 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2])); 6684 } 6685 6686 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6687 { 6688 u32 start, end, max_eirp = 0, max_bw = 0, flags = 0; 6689 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6690 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6691 if (tb_rule[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6692 tb_rule[NL80211_ATTR_FREQ_RANGE_END] == NULL) 6693 continue; 6694 start = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6695 end = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6696 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) 6697 max_eirp = nla_get_u32(tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) / 100; 6698 if (tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) 6699 max_bw = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6700 if (tb_rule[NL80211_ATTR_REG_RULE_FLAGS]) 6701 flags = nla_get_u32(tb_rule[NL80211_ATTR_REG_RULE_FLAGS]); 6702 6703 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz %u mBm%s%s%s%s%s%s%s%s", 6704 start, end, max_bw, max_eirp, 6705 flags & NL80211_RRF_NO_OFDM ? " (no OFDM)" : "", 6706 flags & NL80211_RRF_NO_CCK ? " (no CCK)" : "", 6707 flags & NL80211_RRF_NO_INDOOR ? " (no indoor)" : "", 6708 flags & NL80211_RRF_NO_OUTDOOR ? " (no outdoor)" : 6709 "", 6710 flags & NL80211_RRF_DFS ? " (DFS)" : "", 6711 flags & NL80211_RRF_PTP_ONLY ? " (PTP only)" : "", 6712 flags & NL80211_RRF_PTMP_ONLY ? " (PTMP only)" : "", 6713 flags & NL80211_RRF_NO_IR ? " (no IR)" : ""); 6714 if (max_bw >= 40) 6715 nl80211_reg_rule_ht40(start, end, results); 6716 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) 6717 nl80211_reg_rule_max_eirp(start, end, max_eirp, 6718 results); 6719 } 6720 6721 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6722 { 6723 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6724 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6725 nl80211_reg_rule_sec(tb_rule, results); 6726 } 6727 6728 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6729 { 6730 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6731 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6732 nl80211_reg_rule_vht(tb_rule, results); 6733 } 6734 6735 return NL_SKIP; 6736} 6737 6738 6739static int nl80211_set_regulatory_flags(struct wpa_driver_nl80211_data *drv, 6740 struct phy_info_arg *results) 6741{ 6742 struct nl_msg *msg; 6743 6744 msg = nlmsg_alloc(); 6745 if (!msg) 6746 return -ENOMEM; 6747 6748 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 6749 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results); 6750} 6751 6752 6753static struct hostapd_hw_modes * 6754wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags) 6755{ 6756 u32 feat; 6757 struct i802_bss *bss = priv; 6758 struct wpa_driver_nl80211_data *drv = bss->drv; 6759 struct nl_msg *msg; 6760 struct phy_info_arg result = { 6761 .num_modes = num_modes, 6762 .modes = NULL, 6763 .last_mode = -1, 6764 }; 6765 6766 *num_modes = 0; 6767 *flags = 0; 6768 6769 msg = nlmsg_alloc(); 6770 if (!msg) 6771 return NULL; 6772 6773 feat = get_nl80211_protocol_features(drv); 6774 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 6775 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 6776 else 6777 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 6778 6779 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 6780 if (nl80211_set_iface_id(msg, bss) < 0) 6781 goto nla_put_failure; 6782 6783 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) { 6784 nl80211_set_regulatory_flags(drv, &result); 6785 return wpa_driver_nl80211_postprocess_modes(result.modes, 6786 num_modes); 6787 } 6788 msg = NULL; 6789 nla_put_failure: 6790 nlmsg_free(msg); 6791 return NULL; 6792} 6793 6794 6795static int wpa_driver_nl80211_send_mntr(struct wpa_driver_nl80211_data *drv, 6796 const void *data, size_t len, 6797 int encrypt, int noack) 6798{ 6799 __u8 rtap_hdr[] = { 6800 0x00, 0x00, /* radiotap version */ 6801 0x0e, 0x00, /* radiotap length */ 6802 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */ 6803 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */ 6804 0x00, /* padding */ 6805 0x00, 0x00, /* RX and TX flags to indicate that */ 6806 0x00, 0x00, /* this is the injected frame directly */ 6807 }; 6808 struct iovec iov[2] = { 6809 { 6810 .iov_base = &rtap_hdr, 6811 .iov_len = sizeof(rtap_hdr), 6812 }, 6813 { 6814 .iov_base = (void *) data, 6815 .iov_len = len, 6816 } 6817 }; 6818 struct msghdr msg = { 6819 .msg_name = NULL, 6820 .msg_namelen = 0, 6821 .msg_iov = iov, 6822 .msg_iovlen = 2, 6823 .msg_control = NULL, 6824 .msg_controllen = 0, 6825 .msg_flags = 0, 6826 }; 6827 int res; 6828 u16 txflags = 0; 6829 6830 if (encrypt) 6831 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP; 6832 6833 if (drv->monitor_sock < 0) { 6834 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available " 6835 "for %s", __func__); 6836 return -1; 6837 } 6838 6839 if (noack) 6840 txflags |= IEEE80211_RADIOTAP_F_TX_NOACK; 6841 WPA_PUT_LE16(&rtap_hdr[12], txflags); 6842 6843 res = sendmsg(drv->monitor_sock, &msg, 0); 6844 if (res < 0) { 6845 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno)); 6846 return -1; 6847 } 6848 return 0; 6849} 6850 6851 6852static int wpa_driver_nl80211_send_frame(struct i802_bss *bss, 6853 const void *data, size_t len, 6854 int encrypt, int noack, 6855 unsigned int freq, int no_cck, 6856 int offchanok, unsigned int wait_time) 6857{ 6858 struct wpa_driver_nl80211_data *drv = bss->drv; 6859 u64 cookie; 6860 int res; 6861 6862 if (freq == 0) { 6863 wpa_printf(MSG_DEBUG, "nl80211: send_frame - Use bss->freq=%u", 6864 bss->freq); 6865 freq = bss->freq; 6866 } 6867 6868 if (drv->use_monitor) { 6869 wpa_printf(MSG_DEBUG, "nl80211: send_frame(freq=%u bss->freq=%u) -> send_mntr", 6870 freq, bss->freq); 6871 return wpa_driver_nl80211_send_mntr(drv, data, len, 6872 encrypt, noack); 6873 } 6874 6875 wpa_printf(MSG_DEBUG, "nl80211: send_frame -> send_frame_cmd"); 6876 res = nl80211_send_frame_cmd(bss, freq, wait_time, data, len, 6877 &cookie, no_cck, noack, offchanok); 6878 if (res == 0 && !noack) { 6879 const struct ieee80211_mgmt *mgmt; 6880 u16 fc; 6881 6882 mgmt = (const struct ieee80211_mgmt *) data; 6883 fc = le_to_host16(mgmt->frame_control); 6884 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6885 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_ACTION) { 6886 wpa_printf(MSG_MSGDUMP, 6887 "nl80211: Update send_action_cookie from 0x%llx to 0x%llx", 6888 (long long unsigned int) 6889 drv->send_action_cookie, 6890 (long long unsigned int) cookie); 6891 drv->send_action_cookie = cookie; 6892 } 6893 } 6894 6895 return res; 6896} 6897 6898 6899static int wpa_driver_nl80211_send_mlme(struct i802_bss *bss, const u8 *data, 6900 size_t data_len, int noack, 6901 unsigned int freq, int no_cck, 6902 int offchanok, 6903 unsigned int wait_time) 6904{ 6905 struct wpa_driver_nl80211_data *drv = bss->drv; 6906 struct ieee80211_mgmt *mgmt; 6907 int encrypt = 1; 6908 u16 fc; 6909 6910 mgmt = (struct ieee80211_mgmt *) data; 6911 fc = le_to_host16(mgmt->frame_control); 6912 wpa_printf(MSG_DEBUG, "nl80211: send_mlme - noack=%d freq=%u no_cck=%d offchanok=%d wait_time=%u fc=0x%x nlmode=%d", 6913 noack, freq, no_cck, offchanok, wait_time, fc, drv->nlmode); 6914 6915 if ((is_sta_interface(drv->nlmode) || 6916 drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) && 6917 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6918 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) { 6919 /* 6920 * The use of last_mgmt_freq is a bit of a hack, 6921 * but it works due to the single-threaded nature 6922 * of wpa_supplicant. 6923 */ 6924 if (freq == 0) { 6925 wpa_printf(MSG_DEBUG, "nl80211: Use last_mgmt_freq=%d", 6926 drv->last_mgmt_freq); 6927 freq = drv->last_mgmt_freq; 6928 } 6929 return nl80211_send_frame_cmd(bss, freq, 0, 6930 data, data_len, NULL, 1, noack, 6931 1); 6932 } 6933 6934 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) { 6935 if (freq == 0) { 6936 wpa_printf(MSG_DEBUG, "nl80211: Use bss->freq=%d", 6937 bss->freq); 6938 freq = bss->freq; 6939 } 6940 return nl80211_send_frame_cmd(bss, freq, 6941 (int) freq == bss->freq ? 0 : 6942 wait_time, 6943 data, data_len, 6944 &drv->send_action_cookie, 6945 no_cck, noack, offchanok); 6946 } 6947 6948 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6949 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) { 6950 /* 6951 * Only one of the authentication frame types is encrypted. 6952 * In order for static WEP encryption to work properly (i.e., 6953 * to not encrypt the frame), we need to tell mac80211 about 6954 * the frames that must not be encrypted. 6955 */ 6956 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg); 6957 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction); 6958 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3) 6959 encrypt = 0; 6960 } 6961 6962 wpa_printf(MSG_DEBUG, "nl80211: send_mlme -> send_frame"); 6963 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 6964 noack, freq, no_cck, offchanok, 6965 wait_time); 6966} 6967 6968 6969static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble, 6970 int slot, int ht_opmode, int ap_isolate, 6971 int *basic_rates) 6972{ 6973 struct wpa_driver_nl80211_data *drv = bss->drv; 6974 struct nl_msg *msg; 6975 6976 msg = nlmsg_alloc(); 6977 if (!msg) 6978 return -ENOMEM; 6979 6980 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS); 6981 6982 if (cts >= 0) 6983 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts); 6984 if (preamble >= 0) 6985 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble); 6986 if (slot >= 0) 6987 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot); 6988 if (ht_opmode >= 0) 6989 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode); 6990 if (ap_isolate >= 0) 6991 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate); 6992 6993 if (basic_rates) { 6994 u8 rates[NL80211_MAX_SUPP_RATES]; 6995 u8 rates_len = 0; 6996 int i; 6997 6998 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; 6999 i++) 7000 rates[rates_len++] = basic_rates[i] / 5; 7001 7002 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates); 7003 } 7004 7005 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 7006 7007 return send_and_recv_msgs(drv, msg, NULL, NULL); 7008 nla_put_failure: 7009 nlmsg_free(msg); 7010 return -ENOBUFS; 7011} 7012 7013 7014static int wpa_driver_nl80211_set_acl(void *priv, 7015 struct hostapd_acl_params *params) 7016{ 7017 struct i802_bss *bss = priv; 7018 struct wpa_driver_nl80211_data *drv = bss->drv; 7019 struct nl_msg *msg; 7020 struct nlattr *acl; 7021 unsigned int i; 7022 int ret = 0; 7023 7024 if (!(drv->capa.max_acl_mac_addrs)) 7025 return -ENOTSUP; 7026 7027 if (params->num_mac_acl > drv->capa.max_acl_mac_addrs) 7028 return -ENOTSUP; 7029 7030 msg = nlmsg_alloc(); 7031 if (!msg) 7032 return -ENOMEM; 7033 7034 wpa_printf(MSG_DEBUG, "nl80211: Set %s ACL (num_mac_acl=%u)", 7035 params->acl_policy ? "Accept" : "Deny", params->num_mac_acl); 7036 7037 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_MAC_ACL); 7038 7039 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7040 7041 NLA_PUT_U32(msg, NL80211_ATTR_ACL_POLICY, params->acl_policy ? 7042 NL80211_ACL_POLICY_DENY_UNLESS_LISTED : 7043 NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED); 7044 7045 acl = nla_nest_start(msg, NL80211_ATTR_MAC_ADDRS); 7046 if (acl == NULL) 7047 goto nla_put_failure; 7048 7049 for (i = 0; i < params->num_mac_acl; i++) 7050 NLA_PUT(msg, i + 1, ETH_ALEN, params->mac_acl[i].addr); 7051 7052 nla_nest_end(msg, acl); 7053 7054 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7055 msg = NULL; 7056 if (ret) { 7057 wpa_printf(MSG_DEBUG, "nl80211: Failed to set MAC ACL: %d (%s)", 7058 ret, strerror(-ret)); 7059 } 7060 7061nla_put_failure: 7062 nlmsg_free(msg); 7063 7064 return ret; 7065} 7066 7067 7068static int wpa_driver_nl80211_set_ap(void *priv, 7069 struct wpa_driver_ap_params *params) 7070{ 7071 struct i802_bss *bss = priv; 7072 struct wpa_driver_nl80211_data *drv = bss->drv; 7073 struct nl_msg *msg; 7074 u8 cmd = NL80211_CMD_NEW_BEACON; 7075 int ret; 7076 int beacon_set; 7077 int ifindex = if_nametoindex(bss->ifname); 7078 int num_suites; 7079 u32 suites[10], suite; 7080 u32 ver; 7081 7082 beacon_set = bss->beacon_set; 7083 7084 msg = nlmsg_alloc(); 7085 if (!msg) 7086 return -ENOMEM; 7087 7088 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)", 7089 beacon_set); 7090 if (beacon_set) 7091 cmd = NL80211_CMD_SET_BEACON; 7092 7093 nl80211_cmd(drv, msg, 0, cmd); 7094 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon head", 7095 params->head, params->head_len); 7096 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head); 7097 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon tail", 7098 params->tail, params->tail_len); 7099 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail); 7100 wpa_printf(MSG_DEBUG, "nl80211: ifindex=%d", ifindex); 7101 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 7102 wpa_printf(MSG_DEBUG, "nl80211: beacon_int=%d", params->beacon_int); 7103 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int); 7104 wpa_printf(MSG_DEBUG, "nl80211: dtim_period=%d", params->dtim_period); 7105 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period); 7106 wpa_hexdump_ascii(MSG_DEBUG, "nl80211: ssid", 7107 params->ssid, params->ssid_len); 7108 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7109 params->ssid); 7110 if (params->proberesp && params->proberesp_len) { 7111 wpa_hexdump(MSG_DEBUG, "nl80211: proberesp (offload)", 7112 params->proberesp, params->proberesp_len); 7113 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len, 7114 params->proberesp); 7115 } 7116 switch (params->hide_ssid) { 7117 case NO_SSID_HIDING: 7118 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID not in use"); 7119 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 7120 NL80211_HIDDEN_SSID_NOT_IN_USE); 7121 break; 7122 case HIDDEN_SSID_ZERO_LEN: 7123 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero len"); 7124 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 7125 NL80211_HIDDEN_SSID_ZERO_LEN); 7126 break; 7127 case HIDDEN_SSID_ZERO_CONTENTS: 7128 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero contents"); 7129 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 7130 NL80211_HIDDEN_SSID_ZERO_CONTENTS); 7131 break; 7132 } 7133 wpa_printf(MSG_DEBUG, "nl80211: privacy=%d", params->privacy); 7134 if (params->privacy) 7135 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 7136 wpa_printf(MSG_DEBUG, "nl80211: auth_algs=0x%x", params->auth_algs); 7137 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) == 7138 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) { 7139 /* Leave out the attribute */ 7140 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED) 7141 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 7142 NL80211_AUTHTYPE_SHARED_KEY); 7143 else 7144 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 7145 NL80211_AUTHTYPE_OPEN_SYSTEM); 7146 7147 wpa_printf(MSG_DEBUG, "nl80211: wpa_version=0x%x", params->wpa_version); 7148 ver = 0; 7149 if (params->wpa_version & WPA_PROTO_WPA) 7150 ver |= NL80211_WPA_VERSION_1; 7151 if (params->wpa_version & WPA_PROTO_RSN) 7152 ver |= NL80211_WPA_VERSION_2; 7153 if (ver) 7154 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 7155 7156 wpa_printf(MSG_DEBUG, "nl80211: key_mgmt_suites=0x%x", 7157 params->key_mgmt_suites); 7158 num_suites = 0; 7159 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X) 7160 suites[num_suites++] = WLAN_AKM_SUITE_8021X; 7161 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK) 7162 suites[num_suites++] = WLAN_AKM_SUITE_PSK; 7163 if (num_suites) { 7164 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES, 7165 num_suites * sizeof(u32), suites); 7166 } 7167 7168 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X && 7169 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)) 7170 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT); 7171 7172 wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x", 7173 params->pairwise_ciphers); 7174 num_suites = wpa_cipher_to_cipher_suites(params->pairwise_ciphers, 7175 suites, ARRAY_SIZE(suites)); 7176 if (num_suites) { 7177 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, 7178 num_suites * sizeof(u32), suites); 7179 } 7180 7181 wpa_printf(MSG_DEBUG, "nl80211: group_cipher=0x%x", 7182 params->group_cipher); 7183 suite = wpa_cipher_to_cipher_suite(params->group_cipher); 7184 if (suite) 7185 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, suite); 7186 7187 if (params->beacon_ies) { 7188 wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies", 7189 params->beacon_ies); 7190 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies), 7191 wpabuf_head(params->beacon_ies)); 7192 } 7193 if (params->proberesp_ies) { 7194 wpa_hexdump_buf(MSG_DEBUG, "nl80211: proberesp_ies", 7195 params->proberesp_ies); 7196 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, 7197 wpabuf_len(params->proberesp_ies), 7198 wpabuf_head(params->proberesp_ies)); 7199 } 7200 if (params->assocresp_ies) { 7201 wpa_hexdump_buf(MSG_DEBUG, "nl80211: assocresp_ies", 7202 params->assocresp_ies); 7203 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP, 7204 wpabuf_len(params->assocresp_ies), 7205 wpabuf_head(params->assocresp_ies)); 7206 } 7207 7208 if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) { 7209 wpa_printf(MSG_DEBUG, "nl80211: ap_max_inactivity=%d", 7210 params->ap_max_inactivity); 7211 NLA_PUT_U16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT, 7212 params->ap_max_inactivity); 7213 } 7214 7215 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7216 if (ret) { 7217 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)", 7218 ret, strerror(-ret)); 7219 } else { 7220 bss->beacon_set = 1; 7221 nl80211_set_bss(bss, params->cts_protect, params->preamble, 7222 params->short_slot_time, params->ht_opmode, 7223 params->isolate, params->basic_rates); 7224 } 7225 return ret; 7226 nla_put_failure: 7227 nlmsg_free(msg); 7228 return -ENOBUFS; 7229} 7230 7231 7232static int nl80211_put_freq_params(struct nl_msg *msg, 7233 struct hostapd_freq_params *freq) 7234{ 7235 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); 7236 if (freq->vht_enabled) { 7237 switch (freq->bandwidth) { 7238 case 20: 7239 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7240 NL80211_CHAN_WIDTH_20); 7241 break; 7242 case 40: 7243 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7244 NL80211_CHAN_WIDTH_40); 7245 break; 7246 case 80: 7247 if (freq->center_freq2) 7248 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7249 NL80211_CHAN_WIDTH_80P80); 7250 else 7251 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7252 NL80211_CHAN_WIDTH_80); 7253 break; 7254 case 160: 7255 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7256 NL80211_CHAN_WIDTH_160); 7257 break; 7258 default: 7259 return -EINVAL; 7260 } 7261 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); 7262 if (freq->center_freq2) 7263 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, 7264 freq->center_freq2); 7265 } else if (freq->ht_enabled) { 7266 switch (freq->sec_channel_offset) { 7267 case -1: 7268 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 7269 NL80211_CHAN_HT40MINUS); 7270 break; 7271 case 1: 7272 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 7273 NL80211_CHAN_HT40PLUS); 7274 break; 7275 default: 7276 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 7277 NL80211_CHAN_HT20); 7278 break; 7279 } 7280 } 7281 return 0; 7282 7283nla_put_failure: 7284 return -ENOBUFS; 7285} 7286 7287 7288static int wpa_driver_nl80211_set_freq(struct i802_bss *bss, 7289 struct hostapd_freq_params *freq) 7290{ 7291 struct wpa_driver_nl80211_data *drv = bss->drv; 7292 struct nl_msg *msg; 7293 int ret; 7294 7295 wpa_printf(MSG_DEBUG, 7296 "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d, bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)", 7297 freq->freq, freq->ht_enabled, freq->vht_enabled, 7298 freq->bandwidth, freq->center_freq1, freq->center_freq2); 7299 msg = nlmsg_alloc(); 7300 if (!msg) 7301 return -1; 7302 7303 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 7304 7305 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7306 if (nl80211_put_freq_params(msg, freq) < 0) 7307 goto nla_put_failure; 7308 7309 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7310 msg = NULL; 7311 if (ret == 0) { 7312 bss->freq = freq->freq; 7313 return 0; 7314 } 7315 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): " 7316 "%d (%s)", freq->freq, ret, strerror(-ret)); 7317nla_put_failure: 7318 nlmsg_free(msg); 7319 return -1; 7320} 7321 7322 7323static u32 sta_flags_nl80211(int flags) 7324{ 7325 u32 f = 0; 7326 7327 if (flags & WPA_STA_AUTHORIZED) 7328 f |= BIT(NL80211_STA_FLAG_AUTHORIZED); 7329 if (flags & WPA_STA_WMM) 7330 f |= BIT(NL80211_STA_FLAG_WME); 7331 if (flags & WPA_STA_SHORT_PREAMBLE) 7332 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); 7333 if (flags & WPA_STA_MFP) 7334 f |= BIT(NL80211_STA_FLAG_MFP); 7335 if (flags & WPA_STA_TDLS_PEER) 7336 f |= BIT(NL80211_STA_FLAG_TDLS_PEER); 7337 7338 return f; 7339} 7340 7341 7342static int wpa_driver_nl80211_sta_add(void *priv, 7343 struct hostapd_sta_add_params *params) 7344{ 7345 struct i802_bss *bss = priv; 7346 struct wpa_driver_nl80211_data *drv = bss->drv; 7347 struct nl_msg *msg; 7348 struct nl80211_sta_flag_update upd; 7349 int ret = -ENOBUFS; 7350 7351 if ((params->flags & WPA_STA_TDLS_PEER) && 7352 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 7353 return -EOPNOTSUPP; 7354 7355 msg = nlmsg_alloc(); 7356 if (!msg) 7357 return -ENOMEM; 7358 7359 wpa_printf(MSG_DEBUG, "nl80211: %s STA " MACSTR, 7360 params->set ? "Set" : "Add", MAC2STR(params->addr)); 7361 nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION : 7362 NL80211_CMD_NEW_STATION); 7363 7364 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 7365 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr); 7366 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len, 7367 params->supp_rates); 7368 wpa_hexdump(MSG_DEBUG, " * supported rates", params->supp_rates, 7369 params->supp_rates_len); 7370 if (!params->set) { 7371 if (params->aid) { 7372 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid); 7373 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid); 7374 } else { 7375 /* 7376 * cfg80211 validates that AID is non-zero, so we have 7377 * to make this a non-zero value for the TDLS case where 7378 * a dummy STA entry is used for now. 7379 */ 7380 wpa_printf(MSG_DEBUG, " * aid=1 (TDLS workaround)"); 7381 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, 1); 7382 } 7383 wpa_printf(MSG_DEBUG, " * listen_interval=%u", 7384 params->listen_interval); 7385 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, 7386 params->listen_interval); 7387 } else if (params->aid && (params->flags & WPA_STA_TDLS_PEER)) { 7388 wpa_printf(MSG_DEBUG, " * peer_aid=%u", params->aid); 7389 NLA_PUT_U16(msg, NL80211_ATTR_PEER_AID, params->aid); 7390 } 7391 if (params->ht_capabilities) { 7392 wpa_hexdump(MSG_DEBUG, " * ht_capabilities", 7393 (u8 *) params->ht_capabilities, 7394 sizeof(*params->ht_capabilities)); 7395 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, 7396 sizeof(*params->ht_capabilities), 7397 params->ht_capabilities); 7398 } 7399 7400 if (params->vht_capabilities) { 7401 wpa_hexdump(MSG_DEBUG, " * vht_capabilities", 7402 (u8 *) params->vht_capabilities, 7403 sizeof(*params->vht_capabilities)); 7404 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, 7405 sizeof(*params->vht_capabilities), 7406 params->vht_capabilities); 7407 } 7408 7409 if (params->vht_opmode_enabled) { 7410 wpa_printf(MSG_DEBUG, " * opmode=%u", params->vht_opmode); 7411 NLA_PUT_U8(msg, NL80211_ATTR_OPMODE_NOTIF, 7412 params->vht_opmode); 7413 } 7414 7415 wpa_printf(MSG_DEBUG, " * capability=0x%x", params->capability); 7416 NLA_PUT_U16(msg, NL80211_ATTR_STA_CAPABILITY, params->capability); 7417 7418 if (params->ext_capab) { 7419 wpa_hexdump(MSG_DEBUG, " * ext_capab", 7420 params->ext_capab, params->ext_capab_len); 7421 NLA_PUT(msg, NL80211_ATTR_STA_EXT_CAPABILITY, 7422 params->ext_capab_len, params->ext_capab); 7423 } 7424 7425 if (params->supp_channels) { 7426 wpa_hexdump(MSG_DEBUG, " * supported channels", 7427 params->supp_channels, params->supp_channels_len); 7428 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_CHANNELS, 7429 params->supp_channels_len, params->supp_channels); 7430 } 7431 7432 if (params->supp_oper_classes) { 7433 wpa_hexdump(MSG_DEBUG, " * supported operating classes", 7434 params->supp_oper_classes, 7435 params->supp_oper_classes_len); 7436 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES, 7437 params->supp_oper_classes_len, 7438 params->supp_oper_classes); 7439 } 7440 7441 os_memset(&upd, 0, sizeof(upd)); 7442 upd.mask = sta_flags_nl80211(params->flags); 7443 upd.set = upd.mask; 7444 wpa_printf(MSG_DEBUG, " * flags set=0x%x mask=0x%x", 7445 upd.set, upd.mask); 7446 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 7447 7448 if (params->flags & WPA_STA_WMM) { 7449 struct nlattr *wme = nla_nest_start(msg, NL80211_ATTR_STA_WME); 7450 7451 if (!wme) 7452 goto nla_put_failure; 7453 7454 wpa_printf(MSG_DEBUG, " * qosinfo=0x%x", params->qosinfo); 7455 NLA_PUT_U8(msg, NL80211_STA_WME_UAPSD_QUEUES, 7456 params->qosinfo & WMM_QOSINFO_STA_AC_MASK); 7457 NLA_PUT_U8(msg, NL80211_STA_WME_MAX_SP, 7458 (params->qosinfo >> WMM_QOSINFO_STA_SP_SHIFT) & 7459 WMM_QOSINFO_STA_SP_MASK); 7460 nla_nest_end(msg, wme); 7461 } 7462 7463 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7464 msg = NULL; 7465 if (ret) 7466 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION " 7467 "result: %d (%s)", params->set ? "SET" : "NEW", ret, 7468 strerror(-ret)); 7469 if (ret == -EEXIST) 7470 ret = 0; 7471 nla_put_failure: 7472 nlmsg_free(msg); 7473 return ret; 7474} 7475 7476 7477static int wpa_driver_nl80211_sta_remove(struct i802_bss *bss, const u8 *addr) 7478{ 7479 struct wpa_driver_nl80211_data *drv = bss->drv; 7480 struct nl_msg *msg; 7481 int ret; 7482 7483 msg = nlmsg_alloc(); 7484 if (!msg) 7485 return -ENOMEM; 7486 7487 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 7488 7489 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 7490 if_nametoindex(bss->ifname)); 7491 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 7492 7493 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7494 wpa_printf(MSG_DEBUG, "nl80211: sta_remove -> DEL_STATION %s " MACSTR 7495 " --> %d (%s)", 7496 bss->ifname, MAC2STR(addr), ret, strerror(-ret)); 7497 if (ret == -ENOENT) 7498 return 0; 7499 return ret; 7500 nla_put_failure: 7501 nlmsg_free(msg); 7502 return -ENOBUFS; 7503} 7504 7505 7506static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, 7507 int ifidx) 7508{ 7509 struct nl_msg *msg; 7510 7511 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx); 7512 7513 /* stop listening for EAPOL on this interface */ 7514 del_ifidx(drv, ifidx); 7515 7516 msg = nlmsg_alloc(); 7517 if (!msg) 7518 goto nla_put_failure; 7519 7520 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 7521 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx); 7522 7523 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 7524 return; 7525 msg = NULL; 7526 nla_put_failure: 7527 nlmsg_free(msg); 7528 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx); 7529} 7530 7531 7532static const char * nl80211_iftype_str(enum nl80211_iftype mode) 7533{ 7534 switch (mode) { 7535 case NL80211_IFTYPE_ADHOC: 7536 return "ADHOC"; 7537 case NL80211_IFTYPE_STATION: 7538 return "STATION"; 7539 case NL80211_IFTYPE_AP: 7540 return "AP"; 7541 case NL80211_IFTYPE_AP_VLAN: 7542 return "AP_VLAN"; 7543 case NL80211_IFTYPE_WDS: 7544 return "WDS"; 7545 case NL80211_IFTYPE_MONITOR: 7546 return "MONITOR"; 7547 case NL80211_IFTYPE_MESH_POINT: 7548 return "MESH_POINT"; 7549 case NL80211_IFTYPE_P2P_CLIENT: 7550 return "P2P_CLIENT"; 7551 case NL80211_IFTYPE_P2P_GO: 7552 return "P2P_GO"; 7553 case NL80211_IFTYPE_P2P_DEVICE: 7554 return "P2P_DEVICE"; 7555 default: 7556 return "unknown"; 7557 } 7558} 7559 7560 7561static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv, 7562 const char *ifname, 7563 enum nl80211_iftype iftype, 7564 const u8 *addr, int wds, 7565 int (*handler)(struct nl_msg *, void *), 7566 void *arg) 7567{ 7568 struct nl_msg *msg; 7569 int ifidx; 7570 int ret = -ENOBUFS; 7571 7572 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)", 7573 iftype, nl80211_iftype_str(iftype)); 7574 7575 msg = nlmsg_alloc(); 7576 if (!msg) 7577 return -1; 7578 7579 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE); 7580 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 7581 goto nla_put_failure; 7582 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname); 7583 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype); 7584 7585 if (iftype == NL80211_IFTYPE_MONITOR) { 7586 struct nlattr *flags; 7587 7588 flags = nla_nest_start(msg, NL80211_ATTR_MNTR_FLAGS); 7589 if (!flags) 7590 goto nla_put_failure; 7591 7592 NLA_PUT_FLAG(msg, NL80211_MNTR_FLAG_COOK_FRAMES); 7593 7594 nla_nest_end(msg, flags); 7595 } else if (wds) { 7596 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds); 7597 } 7598 7599 ret = send_and_recv_msgs(drv, msg, handler, arg); 7600 msg = NULL; 7601 if (ret) { 7602 nla_put_failure: 7603 nlmsg_free(msg); 7604 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)", 7605 ifname, ret, strerror(-ret)); 7606 return ret; 7607 } 7608 7609 if (iftype == NL80211_IFTYPE_P2P_DEVICE) 7610 return 0; 7611 7612 ifidx = if_nametoindex(ifname); 7613 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d", 7614 ifname, ifidx); 7615 7616 if (ifidx <= 0) 7617 return -1; 7618 7619 /* start listening for EAPOL on this interface */ 7620 add_ifidx(drv, ifidx); 7621 7622 if (addr && iftype != NL80211_IFTYPE_MONITOR && 7623 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) { 7624 nl80211_remove_iface(drv, ifidx); 7625 return -1; 7626 } 7627 7628 return ifidx; 7629} 7630 7631 7632static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv, 7633 const char *ifname, enum nl80211_iftype iftype, 7634 const u8 *addr, int wds, 7635 int (*handler)(struct nl_msg *, void *), 7636 void *arg, int use_existing) 7637{ 7638 int ret; 7639 7640 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds, handler, 7641 arg); 7642 7643 /* if error occurred and interface exists already */ 7644 if (ret == -ENFILE && if_nametoindex(ifname)) { 7645 if (use_existing) { 7646 wpa_printf(MSG_DEBUG, "nl80211: Continue using existing interface %s", 7647 ifname); 7648 return -ENFILE; 7649 } 7650 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname); 7651 7652 /* Try to remove the interface that was already there. */ 7653 nl80211_remove_iface(drv, if_nametoindex(ifname)); 7654 7655 /* Try to create the interface again */ 7656 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, 7657 wds, handler, arg); 7658 } 7659 7660 if (ret >= 0 && is_p2p_net_interface(iftype)) 7661 nl80211_disable_11b_rates(drv, ret, 1); 7662 7663 return ret; 7664} 7665 7666 7667static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok) 7668{ 7669 struct ieee80211_hdr *hdr; 7670 u16 fc; 7671 union wpa_event_data event; 7672 7673 hdr = (struct ieee80211_hdr *) buf; 7674 fc = le_to_host16(hdr->frame_control); 7675 7676 os_memset(&event, 0, sizeof(event)); 7677 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 7678 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 7679 event.tx_status.dst = hdr->addr1; 7680 event.tx_status.data = buf; 7681 event.tx_status.data_len = len; 7682 event.tx_status.ack = ok; 7683 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event); 7684} 7685 7686 7687static void from_unknown_sta(struct wpa_driver_nl80211_data *drv, 7688 u8 *buf, size_t len) 7689{ 7690 struct ieee80211_hdr *hdr = (void *)buf; 7691 u16 fc; 7692 union wpa_event_data event; 7693 7694 if (len < sizeof(*hdr)) 7695 return; 7696 7697 fc = le_to_host16(hdr->frame_control); 7698 7699 os_memset(&event, 0, sizeof(event)); 7700 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len); 7701 event.rx_from_unknown.addr = hdr->addr2; 7702 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) == 7703 (WLAN_FC_FROMDS | WLAN_FC_TODS); 7704 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 7705} 7706 7707 7708static void handle_frame(struct wpa_driver_nl80211_data *drv, 7709 u8 *buf, size_t len, int datarate, int ssi_signal) 7710{ 7711 struct ieee80211_hdr *hdr; 7712 u16 fc; 7713 union wpa_event_data event; 7714 7715 hdr = (struct ieee80211_hdr *) buf; 7716 fc = le_to_host16(hdr->frame_control); 7717 7718 switch (WLAN_FC_GET_TYPE(fc)) { 7719 case WLAN_FC_TYPE_MGMT: 7720 os_memset(&event, 0, sizeof(event)); 7721 event.rx_mgmt.frame = buf; 7722 event.rx_mgmt.frame_len = len; 7723 event.rx_mgmt.datarate = datarate; 7724 event.rx_mgmt.ssi_signal = ssi_signal; 7725 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 7726 break; 7727 case WLAN_FC_TYPE_CTRL: 7728 /* can only get here with PS-Poll frames */ 7729 wpa_printf(MSG_DEBUG, "CTRL"); 7730 from_unknown_sta(drv, buf, len); 7731 break; 7732 case WLAN_FC_TYPE_DATA: 7733 from_unknown_sta(drv, buf, len); 7734 break; 7735 } 7736} 7737 7738 7739static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx) 7740{ 7741 struct wpa_driver_nl80211_data *drv = eloop_ctx; 7742 int len; 7743 unsigned char buf[3000]; 7744 struct ieee80211_radiotap_iterator iter; 7745 int ret; 7746 int datarate = 0, ssi_signal = 0; 7747 int injected = 0, failed = 0, rxflags = 0; 7748 7749 len = recv(sock, buf, sizeof(buf), 0); 7750 if (len < 0) { 7751 wpa_printf(MSG_ERROR, "nl80211: Monitor socket recv failed: %s", 7752 strerror(errno)); 7753 return; 7754 } 7755 7756 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) { 7757 wpa_printf(MSG_INFO, "nl80211: received invalid radiotap frame"); 7758 return; 7759 } 7760 7761 while (1) { 7762 ret = ieee80211_radiotap_iterator_next(&iter); 7763 if (ret == -ENOENT) 7764 break; 7765 if (ret) { 7766 wpa_printf(MSG_INFO, "nl80211: received invalid radiotap frame (%d)", 7767 ret); 7768 return; 7769 } 7770 switch (iter.this_arg_index) { 7771 case IEEE80211_RADIOTAP_FLAGS: 7772 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS) 7773 len -= 4; 7774 break; 7775 case IEEE80211_RADIOTAP_RX_FLAGS: 7776 rxflags = 1; 7777 break; 7778 case IEEE80211_RADIOTAP_TX_FLAGS: 7779 injected = 1; 7780 failed = le_to_host16((*(uint16_t *) iter.this_arg)) & 7781 IEEE80211_RADIOTAP_F_TX_FAIL; 7782 break; 7783 case IEEE80211_RADIOTAP_DATA_RETRIES: 7784 break; 7785 case IEEE80211_RADIOTAP_CHANNEL: 7786 /* TODO: convert from freq/flags to channel number */ 7787 break; 7788 case IEEE80211_RADIOTAP_RATE: 7789 datarate = *iter.this_arg * 5; 7790 break; 7791 case IEEE80211_RADIOTAP_DBM_ANTSIGNAL: 7792 ssi_signal = (s8) *iter.this_arg; 7793 break; 7794 } 7795 } 7796 7797 if (rxflags && injected) 7798 return; 7799 7800 if (!injected) 7801 handle_frame(drv, buf + iter.max_length, 7802 len - iter.max_length, datarate, ssi_signal); 7803 else 7804 handle_tx_callback(drv->ctx, buf + iter.max_length, 7805 len - iter.max_length, !failed); 7806} 7807 7808 7809/* 7810 * we post-process the filter code later and rewrite 7811 * this to the offset to the last instruction 7812 */ 7813#define PASS 0xFF 7814#define FAIL 0xFE 7815 7816static struct sock_filter msock_filter_insns[] = { 7817 /* 7818 * do a little-endian load of the radiotap length field 7819 */ 7820 /* load lower byte into A */ 7821 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2), 7822 /* put it into X (== index register) */ 7823 BPF_STMT(BPF_MISC| BPF_TAX, 0), 7824 /* load upper byte into A */ 7825 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3), 7826 /* left-shift it by 8 */ 7827 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8), 7828 /* or with X */ 7829 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0), 7830 /* put result into X */ 7831 BPF_STMT(BPF_MISC| BPF_TAX, 0), 7832 7833 /* 7834 * Allow management frames through, this also gives us those 7835 * management frames that we sent ourselves with status 7836 */ 7837 /* load the lower byte of the IEEE 802.11 frame control field */ 7838 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7839 /* mask off frame type and version */ 7840 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF), 7841 /* accept frame if it's both 0, fall through otherwise */ 7842 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0), 7843 7844 /* 7845 * TODO: add a bit to radiotap RX flags that indicates 7846 * that the sending station is not associated, then 7847 * add a filter here that filters on our DA and that flag 7848 * to allow us to deauth frames to that bad station. 7849 * 7850 * For now allow all To DS data frames through. 7851 */ 7852 /* load the IEEE 802.11 frame control field */ 7853 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0), 7854 /* mask off frame type, version and DS status */ 7855 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03), 7856 /* accept frame if version 0, type 2 and To DS, fall through otherwise 7857 */ 7858 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0), 7859 7860#if 0 7861 /* 7862 * drop non-data frames 7863 */ 7864 /* load the lower byte of the frame control field */ 7865 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7866 /* mask off QoS bit */ 7867 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c), 7868 /* drop non-data frames */ 7869 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL), 7870#endif 7871 /* load the upper byte of the frame control field */ 7872 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1), 7873 /* mask off toDS/fromDS */ 7874 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03), 7875 /* accept WDS frames */ 7876 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0), 7877 7878 /* 7879 * add header length to index 7880 */ 7881 /* load the lower byte of the frame control field */ 7882 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7883 /* mask off QoS bit */ 7884 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80), 7885 /* right shift it by 6 to give 0 or 2 */ 7886 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6), 7887 /* add data frame header length */ 7888 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24), 7889 /* add index, was start of 802.11 header */ 7890 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), 7891 /* move to index, now start of LL header */ 7892 BPF_STMT(BPF_MISC | BPF_TAX, 0), 7893 7894 /* 7895 * Accept empty data frames, we use those for 7896 * polling activity. 7897 */ 7898 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0), 7899 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0), 7900 7901 /* 7902 * Accept EAPOL frames 7903 */ 7904 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0), 7905 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL), 7906 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4), 7907 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL), 7908 7909 /* keep these last two statements or change the code below */ 7910 /* return 0 == "DROP" */ 7911 BPF_STMT(BPF_RET | BPF_K, 0), 7912 /* return ~0 == "keep all" */ 7913 BPF_STMT(BPF_RET | BPF_K, ~0), 7914}; 7915 7916static struct sock_fprog msock_filter = { 7917 .len = ARRAY_SIZE(msock_filter_insns), 7918 .filter = msock_filter_insns, 7919}; 7920 7921 7922static int add_monitor_filter(int s) 7923{ 7924 int idx; 7925 7926 /* rewrite all PASS/FAIL jump offsets */ 7927 for (idx = 0; idx < msock_filter.len; idx++) { 7928 struct sock_filter *insn = &msock_filter_insns[idx]; 7929 7930 if (BPF_CLASS(insn->code) == BPF_JMP) { 7931 if (insn->code == (BPF_JMP|BPF_JA)) { 7932 if (insn->k == PASS) 7933 insn->k = msock_filter.len - idx - 2; 7934 else if (insn->k == FAIL) 7935 insn->k = msock_filter.len - idx - 3; 7936 } 7937 7938 if (insn->jt == PASS) 7939 insn->jt = msock_filter.len - idx - 2; 7940 else if (insn->jt == FAIL) 7941 insn->jt = msock_filter.len - idx - 3; 7942 7943 if (insn->jf == PASS) 7944 insn->jf = msock_filter.len - idx - 2; 7945 else if (insn->jf == FAIL) 7946 insn->jf = msock_filter.len - idx - 3; 7947 } 7948 } 7949 7950 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER, 7951 &msock_filter, sizeof(msock_filter))) { 7952 wpa_printf(MSG_ERROR, "nl80211: setsockopt(SO_ATTACH_FILTER) failed: %s", 7953 strerror(errno)); 7954 return -1; 7955 } 7956 7957 return 0; 7958} 7959 7960 7961static void nl80211_remove_monitor_interface( 7962 struct wpa_driver_nl80211_data *drv) 7963{ 7964 if (drv->monitor_refcount > 0) 7965 drv->monitor_refcount--; 7966 wpa_printf(MSG_DEBUG, "nl80211: Remove monitor interface: refcount=%d", 7967 drv->monitor_refcount); 7968 if (drv->monitor_refcount > 0) 7969 return; 7970 7971 if (drv->monitor_ifidx >= 0) { 7972 nl80211_remove_iface(drv, drv->monitor_ifidx); 7973 drv->monitor_ifidx = -1; 7974 } 7975 if (drv->monitor_sock >= 0) { 7976 eloop_unregister_read_sock(drv->monitor_sock); 7977 close(drv->monitor_sock); 7978 drv->monitor_sock = -1; 7979 } 7980} 7981 7982 7983static int 7984nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv) 7985{ 7986 char buf[IFNAMSIZ]; 7987 struct sockaddr_ll ll; 7988 int optval; 7989 socklen_t optlen; 7990 7991 if (drv->monitor_ifidx >= 0) { 7992 drv->monitor_refcount++; 7993 wpa_printf(MSG_DEBUG, "nl80211: Re-use existing monitor interface: refcount=%d", 7994 drv->monitor_refcount); 7995 return 0; 7996 } 7997 7998 if (os_strncmp(drv->first_bss->ifname, "p2p-", 4) == 0) { 7999 /* 8000 * P2P interface name is of the format p2p-%s-%d. For monitor 8001 * interface name corresponding to P2P GO, replace "p2p-" with 8002 * "mon-" to retain the same interface name length and to 8003 * indicate that it is a monitor interface. 8004 */ 8005 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss->ifname + 4); 8006 } else { 8007 /* Non-P2P interface with AP functionality. */ 8008 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss->ifname); 8009 } 8010 8011 buf[IFNAMSIZ - 1] = '\0'; 8012 8013 drv->monitor_ifidx = 8014 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL, 8015 0, NULL, NULL, 0); 8016 8017 if (drv->monitor_ifidx == -EOPNOTSUPP) { 8018 /* 8019 * This is backward compatibility for a few versions of 8020 * the kernel only that didn't advertise the right 8021 * attributes for the only driver that then supported 8022 * AP mode w/o monitor -- ath6kl. 8023 */ 8024 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support " 8025 "monitor interface type - try to run without it"); 8026 drv->device_ap_sme = 1; 8027 } 8028 8029 if (drv->monitor_ifidx < 0) 8030 return -1; 8031 8032 if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1)) 8033 goto error; 8034 8035 memset(&ll, 0, sizeof(ll)); 8036 ll.sll_family = AF_PACKET; 8037 ll.sll_ifindex = drv->monitor_ifidx; 8038 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)); 8039 if (drv->monitor_sock < 0) { 8040 wpa_printf(MSG_ERROR, "nl80211: socket[PF_PACKET,SOCK_RAW] failed: %s", 8041 strerror(errno)); 8042 goto error; 8043 } 8044 8045 if (add_monitor_filter(drv->monitor_sock)) { 8046 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor " 8047 "interface; do filtering in user space"); 8048 /* This works, but will cost in performance. */ 8049 } 8050 8051 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) { 8052 wpa_printf(MSG_ERROR, "nl80211: monitor socket bind failed: %s", 8053 strerror(errno)); 8054 goto error; 8055 } 8056 8057 optlen = sizeof(optval); 8058 optval = 20; 8059 if (setsockopt 8060 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) { 8061 wpa_printf(MSG_ERROR, "nl80211: Failed to set socket priority: %s", 8062 strerror(errno)); 8063 goto error; 8064 } 8065 8066 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read, 8067 drv, NULL)) { 8068 wpa_printf(MSG_INFO, "nl80211: Could not register monitor read socket"); 8069 goto error; 8070 } 8071 8072 drv->monitor_refcount++; 8073 return 0; 8074 error: 8075 nl80211_remove_monitor_interface(drv); 8076 return -1; 8077} 8078 8079 8080static int nl80211_setup_ap(struct i802_bss *bss) 8081{ 8082 struct wpa_driver_nl80211_data *drv = bss->drv; 8083 8084 wpa_printf(MSG_DEBUG, "nl80211: Setup AP(%s) - device_ap_sme=%d use_monitor=%d", 8085 bss->ifname, drv->device_ap_sme, drv->use_monitor); 8086 8087 /* 8088 * Disable Probe Request reporting unless we need it in this way for 8089 * devices that include the AP SME, in the other case (unless using 8090 * monitor iface) we'll get it through the nl_mgmt socket instead. 8091 */ 8092 if (!drv->device_ap_sme) 8093 wpa_driver_nl80211_probe_req_report(bss, 0); 8094 8095 if (!drv->device_ap_sme && !drv->use_monitor) 8096 if (nl80211_mgmt_subscribe_ap(bss)) 8097 return -1; 8098 8099 if (drv->device_ap_sme && !drv->use_monitor) 8100 if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) 8101 return -1; 8102 8103 if (!drv->device_ap_sme && drv->use_monitor && 8104 nl80211_create_monitor_interface(drv) && 8105 !drv->device_ap_sme) 8106 return -1; 8107 8108 if (drv->device_ap_sme && 8109 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) { 8110 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable " 8111 "Probe Request frame reporting in AP mode"); 8112 /* Try to survive without this */ 8113 } 8114 8115 return 0; 8116} 8117 8118 8119static void nl80211_teardown_ap(struct i802_bss *bss) 8120{ 8121 struct wpa_driver_nl80211_data *drv = bss->drv; 8122 8123 wpa_printf(MSG_DEBUG, "nl80211: Teardown AP(%s) - device_ap_sme=%d use_monitor=%d", 8124 bss->ifname, drv->device_ap_sme, drv->use_monitor); 8125 if (drv->device_ap_sme) { 8126 wpa_driver_nl80211_probe_req_report(bss, 0); 8127 if (!drv->use_monitor) 8128 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)"); 8129 } else if (drv->use_monitor) 8130 nl80211_remove_monitor_interface(drv); 8131 else 8132 nl80211_mgmt_unsubscribe(bss, "AP teardown"); 8133 8134 bss->beacon_set = 0; 8135} 8136 8137 8138static int nl80211_send_eapol_data(struct i802_bss *bss, 8139 const u8 *addr, const u8 *data, 8140 size_t data_len) 8141{ 8142 struct sockaddr_ll ll; 8143 int ret; 8144 8145 if (bss->drv->eapol_tx_sock < 0) { 8146 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL"); 8147 return -1; 8148 } 8149 8150 os_memset(&ll, 0, sizeof(ll)); 8151 ll.sll_family = AF_PACKET; 8152 ll.sll_ifindex = bss->ifindex; 8153 ll.sll_protocol = htons(ETH_P_PAE); 8154 ll.sll_halen = ETH_ALEN; 8155 os_memcpy(ll.sll_addr, addr, ETH_ALEN); 8156 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0, 8157 (struct sockaddr *) &ll, sizeof(ll)); 8158 if (ret < 0) 8159 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s", 8160 strerror(errno)); 8161 8162 return ret; 8163} 8164 8165 8166static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 8167 8168static int wpa_driver_nl80211_hapd_send_eapol( 8169 void *priv, const u8 *addr, const u8 *data, 8170 size_t data_len, int encrypt, const u8 *own_addr, u32 flags) 8171{ 8172 struct i802_bss *bss = priv; 8173 struct wpa_driver_nl80211_data *drv = bss->drv; 8174 struct ieee80211_hdr *hdr; 8175 size_t len; 8176 u8 *pos; 8177 int res; 8178 int qos = flags & WPA_STA_WMM; 8179 8180 if (drv->device_ap_sme || !drv->use_monitor) 8181 return nl80211_send_eapol_data(bss, addr, data, data_len); 8182 8183 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 + 8184 data_len; 8185 hdr = os_zalloc(len); 8186 if (hdr == NULL) { 8187 wpa_printf(MSG_INFO, "nl80211: Failed to allocate EAPOL buffer(len=%lu)", 8188 (unsigned long) len); 8189 return -1; 8190 } 8191 8192 hdr->frame_control = 8193 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA); 8194 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS); 8195 if (encrypt) 8196 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP); 8197 if (qos) { 8198 hdr->frame_control |= 8199 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4); 8200 } 8201 8202 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN); 8203 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 8204 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 8205 pos = (u8 *) (hdr + 1); 8206 8207 if (qos) { 8208 /* Set highest priority in QoS header */ 8209 pos[0] = 7; 8210 pos[1] = 0; 8211 pos += 2; 8212 } 8213 8214 memcpy(pos, rfc1042_header, sizeof(rfc1042_header)); 8215 pos += sizeof(rfc1042_header); 8216 WPA_PUT_BE16(pos, ETH_P_PAE); 8217 pos += 2; 8218 memcpy(pos, data, data_len); 8219 8220 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0, 8221 0, 0, 0, 0); 8222 if (res < 0) { 8223 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - " 8224 "failed: %d (%s)", 8225 (unsigned long) len, errno, strerror(errno)); 8226 } 8227 os_free(hdr); 8228 8229 return res; 8230} 8231 8232 8233static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr, 8234 int total_flags, 8235 int flags_or, int flags_and) 8236{ 8237 struct i802_bss *bss = priv; 8238 struct wpa_driver_nl80211_data *drv = bss->drv; 8239 struct nl_msg *msg; 8240 struct nlattr *flags; 8241 struct nl80211_sta_flag_update upd; 8242 8243 msg = nlmsg_alloc(); 8244 if (!msg) 8245 return -ENOMEM; 8246 8247 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8248 8249 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8250 if_nametoindex(bss->ifname)); 8251 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8252 8253 /* 8254 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This 8255 * can be removed eventually. 8256 */ 8257 flags = nla_nest_start(msg, NL80211_ATTR_STA_FLAGS); 8258 if (!flags) 8259 goto nla_put_failure; 8260 if (total_flags & WPA_STA_AUTHORIZED) 8261 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_AUTHORIZED); 8262 8263 if (total_flags & WPA_STA_WMM) 8264 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_WME); 8265 8266 if (total_flags & WPA_STA_SHORT_PREAMBLE) 8267 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_SHORT_PREAMBLE); 8268 8269 if (total_flags & WPA_STA_MFP) 8270 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_MFP); 8271 8272 if (total_flags & WPA_STA_TDLS_PEER) 8273 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_TDLS_PEER); 8274 8275 nla_nest_end(msg, flags); 8276 8277 os_memset(&upd, 0, sizeof(upd)); 8278 upd.mask = sta_flags_nl80211(flags_or | ~flags_and); 8279 upd.set = sta_flags_nl80211(flags_or); 8280 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 8281 8282 return send_and_recv_msgs(drv, msg, NULL, NULL); 8283 nla_put_failure: 8284 nlmsg_free(msg); 8285 return -ENOBUFS; 8286} 8287 8288 8289static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv, 8290 struct wpa_driver_associate_params *params) 8291{ 8292 enum nl80211_iftype nlmode, old_mode; 8293 struct hostapd_freq_params freq = { 8294 .freq = params->freq, 8295 }; 8296 8297 if (params->p2p) { 8298 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P " 8299 "group (GO)"); 8300 nlmode = NL80211_IFTYPE_P2P_GO; 8301 } else 8302 nlmode = NL80211_IFTYPE_AP; 8303 8304 old_mode = drv->nlmode; 8305 if (wpa_driver_nl80211_set_mode(drv->first_bss, nlmode)) { 8306 nl80211_remove_monitor_interface(drv); 8307 return -1; 8308 } 8309 8310 if (wpa_driver_nl80211_set_freq(drv->first_bss, &freq)) { 8311 if (old_mode != nlmode) 8312 wpa_driver_nl80211_set_mode(drv->first_bss, old_mode); 8313 nl80211_remove_monitor_interface(drv); 8314 return -1; 8315 } 8316 8317 return 0; 8318} 8319 8320 8321static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv) 8322{ 8323 struct nl_msg *msg; 8324 int ret = -1; 8325 8326 msg = nlmsg_alloc(); 8327 if (!msg) 8328 return -1; 8329 8330 nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS); 8331 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8332 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8333 msg = NULL; 8334 if (ret) { 8335 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d " 8336 "(%s)", ret, strerror(-ret)); 8337 goto nla_put_failure; 8338 } 8339 8340 ret = 0; 8341 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully"); 8342 8343nla_put_failure: 8344 if (wpa_driver_nl80211_set_mode(drv->first_bss, 8345 NL80211_IFTYPE_STATION)) { 8346 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 8347 "station mode"); 8348 } 8349 8350 nlmsg_free(msg); 8351 return ret; 8352} 8353 8354 8355static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv, 8356 struct wpa_driver_associate_params *params) 8357{ 8358 struct nl_msg *msg; 8359 int ret = -1; 8360 int count = 0; 8361 8362 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex); 8363 8364 if (wpa_driver_nl80211_set_mode(drv->first_bss, 8365 NL80211_IFTYPE_ADHOC)) { 8366 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 8367 "IBSS mode"); 8368 return -1; 8369 } 8370 8371retry: 8372 msg = nlmsg_alloc(); 8373 if (!msg) 8374 return -1; 8375 8376 nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS); 8377 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8378 8379 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid)) 8380 goto nla_put_failure; 8381 8382 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 8383 params->ssid, params->ssid_len); 8384 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 8385 params->ssid); 8386 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 8387 drv->ssid_len = params->ssid_len; 8388 8389 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 8390 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 8391 8392 if (params->beacon_int > 0) { 8393 wpa_printf(MSG_DEBUG, " * beacon_int=%d", params->beacon_int); 8394 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, 8395 params->beacon_int); 8396 } 8397 8398 ret = nl80211_set_conn_keys(params, msg); 8399 if (ret) 8400 goto nla_put_failure; 8401 8402 if (params->bssid && params->fixed_bssid) { 8403 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR, 8404 MAC2STR(params->bssid)); 8405 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 8406 } 8407 8408 if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X || 8409 params->key_mgmt_suite == WPA_KEY_MGMT_PSK || 8410 params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 || 8411 params->key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256) { 8412 wpa_printf(MSG_DEBUG, " * control port"); 8413 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 8414 } 8415 8416 if (params->wpa_ie) { 8417 wpa_hexdump(MSG_DEBUG, 8418 " * Extra IEs for Beacon/Probe Response frames", 8419 params->wpa_ie, params->wpa_ie_len); 8420 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 8421 params->wpa_ie); 8422 } 8423 8424 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8425 msg = NULL; 8426 if (ret) { 8427 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)", 8428 ret, strerror(-ret)); 8429 count++; 8430 if (ret == -EALREADY && count == 1) { 8431 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after " 8432 "forced leave"); 8433 nl80211_leave_ibss(drv); 8434 nlmsg_free(msg); 8435 goto retry; 8436 } 8437 8438 goto nla_put_failure; 8439 } 8440 ret = 0; 8441 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully"); 8442 8443nla_put_failure: 8444 nlmsg_free(msg); 8445 return ret; 8446} 8447 8448 8449static int nl80211_connect_common(struct wpa_driver_nl80211_data *drv, 8450 struct wpa_driver_associate_params *params, 8451 struct nl_msg *msg) 8452{ 8453 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8454 8455 if (params->bssid) { 8456 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 8457 MAC2STR(params->bssid)); 8458 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 8459 } 8460 8461 if (params->bssid_hint) { 8462 wpa_printf(MSG_DEBUG, " * bssid_hint=" MACSTR, 8463 MAC2STR(params->bssid_hint)); 8464 NLA_PUT(msg, NL80211_ATTR_MAC_HINT, ETH_ALEN, 8465 params->bssid_hint); 8466 } 8467 8468 if (params->freq) { 8469 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 8470 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 8471 drv->assoc_freq = params->freq; 8472 } else 8473 drv->assoc_freq = 0; 8474 8475 if (params->freq_hint) { 8476 wpa_printf(MSG_DEBUG, " * freq_hint=%d", params->freq_hint); 8477 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ_HINT, 8478 params->freq_hint); 8479 } 8480 8481 if (params->bg_scan_period >= 0) { 8482 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 8483 params->bg_scan_period); 8484 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 8485 params->bg_scan_period); 8486 } 8487 8488 if (params->ssid) { 8489 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 8490 params->ssid, params->ssid_len); 8491 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 8492 params->ssid); 8493 if (params->ssid_len > sizeof(drv->ssid)) 8494 goto nla_put_failure; 8495 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 8496 drv->ssid_len = params->ssid_len; 8497 } 8498 8499 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 8500 if (params->wpa_ie) 8501 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 8502 params->wpa_ie); 8503 8504 if (params->wpa_proto) { 8505 enum nl80211_wpa_versions ver = 0; 8506 8507 if (params->wpa_proto & WPA_PROTO_WPA) 8508 ver |= NL80211_WPA_VERSION_1; 8509 if (params->wpa_proto & WPA_PROTO_RSN) 8510 ver |= NL80211_WPA_VERSION_2; 8511 8512 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver); 8513 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 8514 } 8515 8516 if (params->pairwise_suite != WPA_CIPHER_NONE) { 8517 u32 cipher = wpa_cipher_to_cipher_suite(params->pairwise_suite); 8518 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher); 8519 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); 8520 } 8521 8522 if (params->group_suite == WPA_CIPHER_GTK_NOT_USED && 8523 !(drv->capa.enc & WPA_DRIVER_CAPA_ENC_GTK_NOT_USED)) { 8524 /* 8525 * This is likely to work even though many drivers do not 8526 * advertise support for operations without GTK. 8527 */ 8528 wpa_printf(MSG_DEBUG, " * skip group cipher configuration for GTK_NOT_USED due to missing driver support advertisement"); 8529 } else if (params->group_suite != WPA_CIPHER_NONE) { 8530 u32 cipher = wpa_cipher_to_cipher_suite(params->group_suite); 8531 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher); 8532 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); 8533 } 8534 8535 if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X || 8536 params->key_mgmt_suite == WPA_KEY_MGMT_PSK || 8537 params->key_mgmt_suite == WPA_KEY_MGMT_FT_IEEE8021X || 8538 params->key_mgmt_suite == WPA_KEY_MGMT_FT_PSK || 8539 params->key_mgmt_suite == WPA_KEY_MGMT_CCKM) { 8540 int mgmt = WLAN_AKM_SUITE_PSK; 8541 8542 switch (params->key_mgmt_suite) { 8543 case WPA_KEY_MGMT_CCKM: 8544 mgmt = WLAN_AKM_SUITE_CCKM; 8545 break; 8546 case WPA_KEY_MGMT_IEEE8021X: 8547 mgmt = WLAN_AKM_SUITE_8021X; 8548 break; 8549 case WPA_KEY_MGMT_FT_IEEE8021X: 8550 mgmt = WLAN_AKM_SUITE_FT_8021X; 8551 break; 8552 case WPA_KEY_MGMT_FT_PSK: 8553 mgmt = WLAN_AKM_SUITE_FT_PSK; 8554 break; 8555 case WPA_KEY_MGMT_PSK: 8556 default: 8557 mgmt = WLAN_AKM_SUITE_PSK; 8558 break; 8559 } 8560 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt); 8561 } 8562 8563 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 8564 8565 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) 8566 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); 8567 8568 if (params->disable_ht) 8569 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); 8570 8571 if (params->htcaps && params->htcaps_mask) { 8572 int sz = sizeof(struct ieee80211_ht_capabilities); 8573 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); 8574 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 8575 params->htcaps_mask); 8576 } 8577 8578#ifdef CONFIG_VHT_OVERRIDES 8579 if (params->disable_vht) { 8580 wpa_printf(MSG_DEBUG, " * VHT disabled"); 8581 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT); 8582 } 8583 8584 if (params->vhtcaps && params->vhtcaps_mask) { 8585 int sz = sizeof(struct ieee80211_vht_capabilities); 8586 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps); 8587 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 8588 params->vhtcaps_mask); 8589 } 8590#endif /* CONFIG_VHT_OVERRIDES */ 8591 8592 if (params->p2p) 8593 wpa_printf(MSG_DEBUG, " * P2P group"); 8594 8595 return 0; 8596nla_put_failure: 8597 return -1; 8598} 8599 8600 8601static int wpa_driver_nl80211_try_connect( 8602 struct wpa_driver_nl80211_data *drv, 8603 struct wpa_driver_associate_params *params) 8604{ 8605 struct nl_msg *msg; 8606 enum nl80211_auth_type type; 8607 int ret; 8608 int algs; 8609 8610 msg = nlmsg_alloc(); 8611 if (!msg) 8612 return -1; 8613 8614 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex); 8615 nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT); 8616 8617 ret = nl80211_connect_common(drv, params, msg); 8618 if (ret) 8619 goto nla_put_failure; 8620 8621 algs = 0; 8622 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 8623 algs++; 8624 if (params->auth_alg & WPA_AUTH_ALG_SHARED) 8625 algs++; 8626 if (params->auth_alg & WPA_AUTH_ALG_LEAP) 8627 algs++; 8628 if (algs > 1) { 8629 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic " 8630 "selection"); 8631 goto skip_auth_type; 8632 } 8633 8634 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 8635 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 8636 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 8637 type = NL80211_AUTHTYPE_SHARED_KEY; 8638 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 8639 type = NL80211_AUTHTYPE_NETWORK_EAP; 8640 else if (params->auth_alg & WPA_AUTH_ALG_FT) 8641 type = NL80211_AUTHTYPE_FT; 8642 else 8643 goto nla_put_failure; 8644 8645 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 8646 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 8647 8648skip_auth_type: 8649 ret = nl80211_set_conn_keys(params, msg); 8650 if (ret) 8651 goto nla_put_failure; 8652 8653 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8654 msg = NULL; 8655 if (ret) { 8656 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d " 8657 "(%s)", ret, strerror(-ret)); 8658 goto nla_put_failure; 8659 } 8660 ret = 0; 8661 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully"); 8662 8663nla_put_failure: 8664 nlmsg_free(msg); 8665 return ret; 8666 8667} 8668 8669 8670static int wpa_driver_nl80211_connect( 8671 struct wpa_driver_nl80211_data *drv, 8672 struct wpa_driver_associate_params *params) 8673{ 8674 int ret = wpa_driver_nl80211_try_connect(drv, params); 8675 if (ret == -EALREADY) { 8676 /* 8677 * cfg80211 does not currently accept new connections if 8678 * we are already connected. As a workaround, force 8679 * disconnection and try again. 8680 */ 8681 wpa_printf(MSG_DEBUG, "nl80211: Explicitly " 8682 "disconnecting before reassociation " 8683 "attempt"); 8684 if (wpa_driver_nl80211_disconnect( 8685 drv, WLAN_REASON_PREV_AUTH_NOT_VALID)) 8686 return -1; 8687 ret = wpa_driver_nl80211_try_connect(drv, params); 8688 } 8689 return ret; 8690} 8691 8692 8693static int wpa_driver_nl80211_associate( 8694 void *priv, struct wpa_driver_associate_params *params) 8695{ 8696 struct i802_bss *bss = priv; 8697 struct wpa_driver_nl80211_data *drv = bss->drv; 8698 int ret; 8699 struct nl_msg *msg; 8700 8701 if (params->mode == IEEE80211_MODE_AP) 8702 return wpa_driver_nl80211_ap(drv, params); 8703 8704 if (params->mode == IEEE80211_MODE_IBSS) 8705 return wpa_driver_nl80211_ibss(drv, params); 8706 8707 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) { 8708 enum nl80211_iftype nlmode = params->p2p ? 8709 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 8710 8711 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0) 8712 return -1; 8713 return wpa_driver_nl80211_connect(drv, params); 8714 } 8715 8716 nl80211_mark_disconnected(drv); 8717 8718 msg = nlmsg_alloc(); 8719 if (!msg) 8720 return -1; 8721 8722 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)", 8723 drv->ifindex); 8724 nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE); 8725 8726 ret = nl80211_connect_common(drv, params, msg); 8727 if (ret) 8728 goto nla_put_failure; 8729 8730 if (params->prev_bssid) { 8731 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR, 8732 MAC2STR(params->prev_bssid)); 8733 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN, 8734 params->prev_bssid); 8735 } 8736 8737 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8738 msg = NULL; 8739 if (ret) { 8740 wpa_dbg(drv->ctx, MSG_DEBUG, 8741 "nl80211: MLME command failed (assoc): ret=%d (%s)", 8742 ret, strerror(-ret)); 8743 nl80211_dump_scan(drv); 8744 goto nla_put_failure; 8745 } 8746 ret = 0; 8747 wpa_printf(MSG_DEBUG, "nl80211: Association request send " 8748 "successfully"); 8749 8750nla_put_failure: 8751 nlmsg_free(msg); 8752 return ret; 8753} 8754 8755 8756static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv, 8757 int ifindex, enum nl80211_iftype mode) 8758{ 8759 struct nl_msg *msg; 8760 int ret = -ENOBUFS; 8761 8762 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)", 8763 ifindex, mode, nl80211_iftype_str(mode)); 8764 8765 msg = nlmsg_alloc(); 8766 if (!msg) 8767 return -ENOMEM; 8768 8769 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE); 8770 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 8771 goto nla_put_failure; 8772 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode); 8773 8774 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8775 msg = NULL; 8776 if (!ret) 8777 return 0; 8778nla_put_failure: 8779 nlmsg_free(msg); 8780 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:" 8781 " %d (%s)", ifindex, mode, ret, strerror(-ret)); 8782 return ret; 8783} 8784 8785 8786static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 8787 enum nl80211_iftype nlmode) 8788{ 8789 struct wpa_driver_nl80211_data *drv = bss->drv; 8790 int ret = -1; 8791 int i; 8792 int was_ap = is_ap_interface(drv->nlmode); 8793 int res; 8794 8795 res = nl80211_set_mode(drv, drv->ifindex, nlmode); 8796 if (res && nlmode == nl80211_get_ifmode(bss)) 8797 res = 0; 8798 8799 if (res == 0) { 8800 drv->nlmode = nlmode; 8801 ret = 0; 8802 goto done; 8803 } 8804 8805 if (res == -ENODEV) 8806 return -1; 8807 8808 if (nlmode == drv->nlmode) { 8809 wpa_printf(MSG_DEBUG, "nl80211: Interface already in " 8810 "requested mode - ignore error"); 8811 ret = 0; 8812 goto done; /* Already in the requested mode */ 8813 } 8814 8815 /* mac80211 doesn't allow mode changes while the device is up, so 8816 * take the device down, try to set the mode again, and bring the 8817 * device back up. 8818 */ 8819 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting " 8820 "interface down"); 8821 for (i = 0; i < 10; i++) { 8822 res = i802_set_iface_flags(bss, 0); 8823 if (res == -EACCES || res == -ENODEV) 8824 break; 8825 if (res == 0) { 8826 /* Try to set the mode again while the interface is 8827 * down */ 8828 ret = nl80211_set_mode(drv, drv->ifindex, nlmode); 8829 if (ret == -EACCES) 8830 break; 8831 res = i802_set_iface_flags(bss, 1); 8832 if (res && !ret) 8833 ret = -1; 8834 else if (ret != -EBUSY) 8835 break; 8836 } else 8837 wpa_printf(MSG_DEBUG, "nl80211: Failed to set " 8838 "interface down"); 8839 os_sleep(0, 100000); 8840 } 8841 8842 if (!ret) { 8843 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while " 8844 "interface is down"); 8845 drv->nlmode = nlmode; 8846 drv->ignore_if_down_event = 1; 8847 } 8848 8849done: 8850 if (ret) { 8851 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d " 8852 "from %d failed", nlmode, drv->nlmode); 8853 return ret; 8854 } 8855 8856 if (is_p2p_net_interface(nlmode)) 8857 nl80211_disable_11b_rates(drv, drv->ifindex, 1); 8858 else if (drv->disabled_11b_rates) 8859 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 8860 8861 if (is_ap_interface(nlmode)) { 8862 nl80211_mgmt_unsubscribe(bss, "start AP"); 8863 /* Setup additional AP mode functionality if needed */ 8864 if (nl80211_setup_ap(bss)) 8865 return -1; 8866 } else if (was_ap) { 8867 /* Remove additional AP mode functionality */ 8868 nl80211_teardown_ap(bss); 8869 } else { 8870 nl80211_mgmt_unsubscribe(bss, "mode change"); 8871 } 8872 8873 if (!bss->in_deinit && !is_ap_interface(nlmode) && 8874 nl80211_mgmt_subscribe_non_ap(bss) < 0) 8875 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action " 8876 "frame processing - ignore for now"); 8877 8878 return 0; 8879} 8880 8881 8882static int wpa_driver_nl80211_get_capa(void *priv, 8883 struct wpa_driver_capa *capa) 8884{ 8885 struct i802_bss *bss = priv; 8886 struct wpa_driver_nl80211_data *drv = bss->drv; 8887 if (!drv->has_capability) 8888 return -1; 8889 os_memcpy(capa, &drv->capa, sizeof(*capa)); 8890 if (drv->extended_capa && drv->extended_capa_mask) { 8891 capa->extended_capa = drv->extended_capa; 8892 capa->extended_capa_mask = drv->extended_capa_mask; 8893 capa->extended_capa_len = drv->extended_capa_len; 8894 } 8895 8896 if ((capa->flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) && 8897 !drv->allow_p2p_device) { 8898 wpa_printf(MSG_DEBUG, "nl80211: Do not indicate P2P_DEVICE support (p2p_device=1 driver param not specified)"); 8899 capa->flags &= ~WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 8900 } 8901 8902 return 0; 8903} 8904 8905 8906static int wpa_driver_nl80211_set_operstate(void *priv, int state) 8907{ 8908 struct i802_bss *bss = priv; 8909 struct wpa_driver_nl80211_data *drv = bss->drv; 8910 8911 wpa_printf(MSG_DEBUG, "nl80211: Set %s operstate %d->%d (%s)", 8912 bss->ifname, drv->operstate, state, 8913 state ? "UP" : "DORMANT"); 8914 drv->operstate = state; 8915 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1, 8916 state ? IF_OPER_UP : IF_OPER_DORMANT); 8917} 8918 8919 8920static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized) 8921{ 8922 struct i802_bss *bss = priv; 8923 struct wpa_driver_nl80211_data *drv = bss->drv; 8924 struct nl_msg *msg; 8925 struct nl80211_sta_flag_update upd; 8926 int ret = -ENOBUFS; 8927 8928 if (!drv->associated && is_zero_ether_addr(drv->bssid) && !authorized) { 8929 wpa_printf(MSG_DEBUG, "nl80211: Skip set_supp_port(unauthorized) while not associated"); 8930 return 0; 8931 } 8932 8933 wpa_printf(MSG_DEBUG, "nl80211: Set supplicant port %sauthorized for " 8934 MACSTR, authorized ? "" : "un", MAC2STR(drv->bssid)); 8935 8936 msg = nlmsg_alloc(); 8937 if (!msg) 8938 return -ENOMEM; 8939 8940 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8941 8942 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8943 if_nametoindex(bss->ifname)); 8944 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 8945 8946 os_memset(&upd, 0, sizeof(upd)); 8947 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED); 8948 if (authorized) 8949 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED); 8950 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 8951 8952 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8953 msg = NULL; 8954 if (!ret) 8955 return 0; 8956 nla_put_failure: 8957 nlmsg_free(msg); 8958 wpa_printf(MSG_DEBUG, "nl80211: Failed to set STA flag: %d (%s)", 8959 ret, strerror(-ret)); 8960 return ret; 8961} 8962 8963 8964/* Set kernel driver on given frequency (MHz) */ 8965static int i802_set_freq(void *priv, struct hostapd_freq_params *freq) 8966{ 8967 struct i802_bss *bss = priv; 8968 return wpa_driver_nl80211_set_freq(bss, freq); 8969} 8970 8971 8972static inline int min_int(int a, int b) 8973{ 8974 if (a < b) 8975 return a; 8976 return b; 8977} 8978 8979 8980static int get_key_handler(struct nl_msg *msg, void *arg) 8981{ 8982 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 8983 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 8984 8985 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 8986 genlmsg_attrlen(gnlh, 0), NULL); 8987 8988 /* 8989 * TODO: validate the key index and mac address! 8990 * Otherwise, there's a race condition as soon as 8991 * the kernel starts sending key notifications. 8992 */ 8993 8994 if (tb[NL80211_ATTR_KEY_SEQ]) 8995 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]), 8996 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6)); 8997 return NL_SKIP; 8998} 8999 9000 9001static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr, 9002 int idx, u8 *seq) 9003{ 9004 struct i802_bss *bss = priv; 9005 struct wpa_driver_nl80211_data *drv = bss->drv; 9006 struct nl_msg *msg; 9007 9008 msg = nlmsg_alloc(); 9009 if (!msg) 9010 return -ENOMEM; 9011 9012 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY); 9013 9014 if (addr) 9015 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 9016 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx); 9017 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface)); 9018 9019 memset(seq, 0, 6); 9020 9021 return send_and_recv_msgs(drv, msg, get_key_handler, seq); 9022 nla_put_failure: 9023 nlmsg_free(msg); 9024 return -ENOBUFS; 9025} 9026 9027 9028static int i802_set_rts(void *priv, int rts) 9029{ 9030 struct i802_bss *bss = priv; 9031 struct wpa_driver_nl80211_data *drv = bss->drv; 9032 struct nl_msg *msg; 9033 int ret = -ENOBUFS; 9034 u32 val; 9035 9036 msg = nlmsg_alloc(); 9037 if (!msg) 9038 return -ENOMEM; 9039 9040 if (rts >= 2347) 9041 val = (u32) -1; 9042 else 9043 val = rts; 9044 9045 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 9046 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9047 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val); 9048 9049 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9050 msg = NULL; 9051 if (!ret) 9052 return 0; 9053nla_put_failure: 9054 nlmsg_free(msg); 9055 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: " 9056 "%d (%s)", rts, ret, strerror(-ret)); 9057 return ret; 9058} 9059 9060 9061static int i802_set_frag(void *priv, int frag) 9062{ 9063 struct i802_bss *bss = priv; 9064 struct wpa_driver_nl80211_data *drv = bss->drv; 9065 struct nl_msg *msg; 9066 int ret = -ENOBUFS; 9067 u32 val; 9068 9069 msg = nlmsg_alloc(); 9070 if (!msg) 9071 return -ENOMEM; 9072 9073 if (frag >= 2346) 9074 val = (u32) -1; 9075 else 9076 val = frag; 9077 9078 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 9079 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9080 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val); 9081 9082 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9083 msg = NULL; 9084 if (!ret) 9085 return 0; 9086nla_put_failure: 9087 nlmsg_free(msg); 9088 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold " 9089 "%d: %d (%s)", frag, ret, strerror(-ret)); 9090 return ret; 9091} 9092 9093 9094static int i802_flush(void *priv) 9095{ 9096 struct i802_bss *bss = priv; 9097 struct wpa_driver_nl80211_data *drv = bss->drv; 9098 struct nl_msg *msg; 9099 int res; 9100 9101 msg = nlmsg_alloc(); 9102 if (!msg) 9103 return -1; 9104 9105 wpa_printf(MSG_DEBUG, "nl80211: flush -> DEL_STATION %s (all)", 9106 bss->ifname); 9107 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 9108 9109 /* 9110 * XXX: FIX! this needs to flush all VLANs too 9111 */ 9112 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 9113 if_nametoindex(bss->ifname)); 9114 9115 res = send_and_recv_msgs(drv, msg, NULL, NULL); 9116 if (res) { 9117 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d " 9118 "(%s)", res, strerror(-res)); 9119 } 9120 return res; 9121 nla_put_failure: 9122 nlmsg_free(msg); 9123 return -ENOBUFS; 9124} 9125 9126 9127static int get_sta_handler(struct nl_msg *msg, void *arg) 9128{ 9129 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9130 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9131 struct hostap_sta_driver_data *data = arg; 9132 struct nlattr *stats[NL80211_STA_INFO_MAX + 1]; 9133 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = { 9134 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 }, 9135 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 }, 9136 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 }, 9137 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 }, 9138 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 }, 9139 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 }, 9140 }; 9141 9142 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9143 genlmsg_attrlen(gnlh, 0), NULL); 9144 9145 /* 9146 * TODO: validate the interface and mac address! 9147 * Otherwise, there's a race condition as soon as 9148 * the kernel starts sending station notifications. 9149 */ 9150 9151 if (!tb[NL80211_ATTR_STA_INFO]) { 9152 wpa_printf(MSG_DEBUG, "sta stats missing!"); 9153 return NL_SKIP; 9154 } 9155 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX, 9156 tb[NL80211_ATTR_STA_INFO], 9157 stats_policy)) { 9158 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!"); 9159 return NL_SKIP; 9160 } 9161 9162 if (stats[NL80211_STA_INFO_INACTIVE_TIME]) 9163 data->inactive_msec = 9164 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]); 9165 if (stats[NL80211_STA_INFO_RX_BYTES]) 9166 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]); 9167 if (stats[NL80211_STA_INFO_TX_BYTES]) 9168 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]); 9169 if (stats[NL80211_STA_INFO_RX_PACKETS]) 9170 data->rx_packets = 9171 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]); 9172 if (stats[NL80211_STA_INFO_TX_PACKETS]) 9173 data->tx_packets = 9174 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]); 9175 if (stats[NL80211_STA_INFO_TX_FAILED]) 9176 data->tx_retry_failed = 9177 nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]); 9178 9179 return NL_SKIP; 9180} 9181 9182static int i802_read_sta_data(struct i802_bss *bss, 9183 struct hostap_sta_driver_data *data, 9184 const u8 *addr) 9185{ 9186 struct wpa_driver_nl80211_data *drv = bss->drv; 9187 struct nl_msg *msg; 9188 9189 os_memset(data, 0, sizeof(*data)); 9190 msg = nlmsg_alloc(); 9191 if (!msg) 9192 return -ENOMEM; 9193 9194 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 9195 9196 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 9197 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 9198 9199 return send_and_recv_msgs(drv, msg, get_sta_handler, data); 9200 nla_put_failure: 9201 nlmsg_free(msg); 9202 return -ENOBUFS; 9203} 9204 9205 9206static int i802_set_tx_queue_params(void *priv, int queue, int aifs, 9207 int cw_min, int cw_max, int burst_time) 9208{ 9209 struct i802_bss *bss = priv; 9210 struct wpa_driver_nl80211_data *drv = bss->drv; 9211 struct nl_msg *msg; 9212 struct nlattr *txq, *params; 9213 9214 msg = nlmsg_alloc(); 9215 if (!msg) 9216 return -1; 9217 9218 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 9219 9220 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 9221 9222 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS); 9223 if (!txq) 9224 goto nla_put_failure; 9225 9226 /* We are only sending parameters for a single TXQ at a time */ 9227 params = nla_nest_start(msg, 1); 9228 if (!params) 9229 goto nla_put_failure; 9230 9231 switch (queue) { 9232 case 0: 9233 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO); 9234 break; 9235 case 1: 9236 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI); 9237 break; 9238 case 2: 9239 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE); 9240 break; 9241 case 3: 9242 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK); 9243 break; 9244 } 9245 /* Burst time is configured in units of 0.1 msec and TXOP parameter in 9246 * 32 usec, so need to convert the value here. */ 9247 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32); 9248 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min); 9249 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max); 9250 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs); 9251 9252 nla_nest_end(msg, params); 9253 9254 nla_nest_end(msg, txq); 9255 9256 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 9257 return 0; 9258 msg = NULL; 9259 nla_put_failure: 9260 nlmsg_free(msg); 9261 return -1; 9262} 9263 9264 9265static int i802_set_sta_vlan(struct i802_bss *bss, const u8 *addr, 9266 const char *ifname, int vlan_id) 9267{ 9268 struct wpa_driver_nl80211_data *drv = bss->drv; 9269 struct nl_msg *msg; 9270 int ret = -ENOBUFS; 9271 9272 msg = nlmsg_alloc(); 9273 if (!msg) 9274 return -ENOMEM; 9275 9276 wpa_printf(MSG_DEBUG, "nl80211: %s[%d]: set_sta_vlan(" MACSTR 9277 ", ifname=%s[%d], vlan_id=%d)", 9278 bss->ifname, if_nametoindex(bss->ifname), 9279 MAC2STR(addr), ifname, if_nametoindex(ifname), vlan_id); 9280 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 9281 9282 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 9283 if_nametoindex(bss->ifname)); 9284 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 9285 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN, 9286 if_nametoindex(ifname)); 9287 9288 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9289 msg = NULL; 9290 if (ret < 0) { 9291 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr=" 9292 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)", 9293 MAC2STR(addr), ifname, vlan_id, ret, 9294 strerror(-ret)); 9295 } 9296 nla_put_failure: 9297 nlmsg_free(msg); 9298 return ret; 9299} 9300 9301 9302static int i802_get_inact_sec(void *priv, const u8 *addr) 9303{ 9304 struct hostap_sta_driver_data data; 9305 int ret; 9306 9307 data.inactive_msec = (unsigned long) -1; 9308 ret = i802_read_sta_data(priv, &data, addr); 9309 if (ret || data.inactive_msec == (unsigned long) -1) 9310 return -1; 9311 return data.inactive_msec / 1000; 9312} 9313 9314 9315static int i802_sta_clear_stats(void *priv, const u8 *addr) 9316{ 9317#if 0 9318 /* TODO */ 9319#endif 9320 return 0; 9321} 9322 9323 9324static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, 9325 int reason) 9326{ 9327 struct i802_bss *bss = priv; 9328 struct wpa_driver_nl80211_data *drv = bss->drv; 9329 struct ieee80211_mgmt mgmt; 9330 9331 if (drv->device_ap_sme) 9332 return wpa_driver_nl80211_sta_remove(bss, addr); 9333 9334 memset(&mgmt, 0, sizeof(mgmt)); 9335 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 9336 WLAN_FC_STYPE_DEAUTH); 9337 memcpy(mgmt.da, addr, ETH_ALEN); 9338 memcpy(mgmt.sa, own_addr, ETH_ALEN); 9339 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 9340 mgmt.u.deauth.reason_code = host_to_le16(reason); 9341 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 9342 IEEE80211_HDRLEN + 9343 sizeof(mgmt.u.deauth), 0, 0, 0, 0, 9344 0); 9345} 9346 9347 9348static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr, 9349 int reason) 9350{ 9351 struct i802_bss *bss = priv; 9352 struct wpa_driver_nl80211_data *drv = bss->drv; 9353 struct ieee80211_mgmt mgmt; 9354 9355 if (drv->device_ap_sme) 9356 return wpa_driver_nl80211_sta_remove(bss, addr); 9357 9358 memset(&mgmt, 0, sizeof(mgmt)); 9359 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 9360 WLAN_FC_STYPE_DISASSOC); 9361 memcpy(mgmt.da, addr, ETH_ALEN); 9362 memcpy(mgmt.sa, own_addr, ETH_ALEN); 9363 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 9364 mgmt.u.disassoc.reason_code = host_to_le16(reason); 9365 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 9366 IEEE80211_HDRLEN + 9367 sizeof(mgmt.u.disassoc), 0, 0, 0, 0, 9368 0); 9369} 9370 9371 9372static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 9373{ 9374 int i; 9375 int *old; 9376 9377 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d", 9378 ifidx); 9379 for (i = 0; i < drv->num_if_indices; i++) { 9380 if (drv->if_indices[i] == 0) { 9381 drv->if_indices[i] = ifidx; 9382 return; 9383 } 9384 } 9385 9386 if (drv->if_indices != drv->default_if_indices) 9387 old = drv->if_indices; 9388 else 9389 old = NULL; 9390 9391 drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1, 9392 sizeof(int)); 9393 if (!drv->if_indices) { 9394 if (!old) 9395 drv->if_indices = drv->default_if_indices; 9396 else 9397 drv->if_indices = old; 9398 wpa_printf(MSG_ERROR, "Failed to reallocate memory for " 9399 "interfaces"); 9400 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx); 9401 return; 9402 } else if (!old) 9403 os_memcpy(drv->if_indices, drv->default_if_indices, 9404 sizeof(drv->default_if_indices)); 9405 drv->if_indices[drv->num_if_indices] = ifidx; 9406 drv->num_if_indices++; 9407} 9408 9409 9410static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 9411{ 9412 int i; 9413 9414 for (i = 0; i < drv->num_if_indices; i++) { 9415 if (drv->if_indices[i] == ifidx) { 9416 drv->if_indices[i] = 0; 9417 break; 9418 } 9419 } 9420} 9421 9422 9423static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 9424{ 9425 int i; 9426 9427 for (i = 0; i < drv->num_if_indices; i++) 9428 if (drv->if_indices[i] == ifidx) 9429 return 1; 9430 9431 return 0; 9432} 9433 9434 9435static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val, 9436 const char *bridge_ifname, char *ifname_wds) 9437{ 9438 struct i802_bss *bss = priv; 9439 struct wpa_driver_nl80211_data *drv = bss->drv; 9440 char name[IFNAMSIZ + 1]; 9441 9442 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid); 9443 if (ifname_wds) 9444 os_strlcpy(ifname_wds, name, IFNAMSIZ + 1); 9445 9446 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR 9447 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name); 9448 if (val) { 9449 if (!if_nametoindex(name)) { 9450 if (nl80211_create_iface(drv, name, 9451 NL80211_IFTYPE_AP_VLAN, 9452 bss->addr, 1, NULL, NULL, 0) < 9453 0) 9454 return -1; 9455 if (bridge_ifname && 9456 linux_br_add_if(drv->global->ioctl_sock, 9457 bridge_ifname, name) < 0) 9458 return -1; 9459 } 9460 if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) { 9461 wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA " 9462 "interface %s up", name); 9463 } 9464 return i802_set_sta_vlan(priv, addr, name, 0); 9465 } else { 9466 if (bridge_ifname) 9467 linux_br_del_if(drv->global->ioctl_sock, bridge_ifname, 9468 name); 9469 9470 i802_set_sta_vlan(priv, addr, bss->ifname, 0); 9471 nl80211_remove_iface(drv, if_nametoindex(name)); 9472 return 0; 9473 } 9474} 9475 9476 9477static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx) 9478{ 9479 struct wpa_driver_nl80211_data *drv = eloop_ctx; 9480 struct sockaddr_ll lladdr; 9481 unsigned char buf[3000]; 9482 int len; 9483 socklen_t fromlen = sizeof(lladdr); 9484 9485 len = recvfrom(sock, buf, sizeof(buf), 0, 9486 (struct sockaddr *)&lladdr, &fromlen); 9487 if (len < 0) { 9488 wpa_printf(MSG_ERROR, "nl80211: EAPOL recv failed: %s", 9489 strerror(errno)); 9490 return; 9491 } 9492 9493 if (have_ifidx(drv, lladdr.sll_ifindex)) 9494 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len); 9495} 9496 9497 9498static int i802_check_bridge(struct wpa_driver_nl80211_data *drv, 9499 struct i802_bss *bss, 9500 const char *brname, const char *ifname) 9501{ 9502 int ifindex; 9503 char in_br[IFNAMSIZ]; 9504 9505 os_strlcpy(bss->brname, brname, IFNAMSIZ); 9506 ifindex = if_nametoindex(brname); 9507 if (ifindex == 0) { 9508 /* 9509 * Bridge was configured, but the bridge device does 9510 * not exist. Try to add it now. 9511 */ 9512 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) { 9513 wpa_printf(MSG_ERROR, "nl80211: Failed to add the " 9514 "bridge interface %s: %s", 9515 brname, strerror(errno)); 9516 return -1; 9517 } 9518 bss->added_bridge = 1; 9519 add_ifidx(drv, if_nametoindex(brname)); 9520 } 9521 9522 if (linux_br_get(in_br, ifname) == 0) { 9523 if (os_strcmp(in_br, brname) == 0) 9524 return 0; /* already in the bridge */ 9525 9526 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from " 9527 "bridge %s", ifname, in_br); 9528 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) < 9529 0) { 9530 wpa_printf(MSG_ERROR, "nl80211: Failed to " 9531 "remove interface %s from bridge " 9532 "%s: %s", 9533 ifname, brname, strerror(errno)); 9534 return -1; 9535 } 9536 } 9537 9538 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s", 9539 ifname, brname); 9540 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) { 9541 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s " 9542 "into bridge %s: %s", 9543 ifname, brname, strerror(errno)); 9544 return -1; 9545 } 9546 bss->added_if_into_bridge = 1; 9547 9548 return 0; 9549} 9550 9551 9552static void *i802_init(struct hostapd_data *hapd, 9553 struct wpa_init_params *params) 9554{ 9555 struct wpa_driver_nl80211_data *drv; 9556 struct i802_bss *bss; 9557 size_t i; 9558 char brname[IFNAMSIZ]; 9559 int ifindex, br_ifindex; 9560 int br_added = 0; 9561 9562 bss = wpa_driver_nl80211_drv_init(hapd, params->ifname, 9563 params->global_priv, 1, 9564 params->bssid); 9565 if (bss == NULL) 9566 return NULL; 9567 9568 drv = bss->drv; 9569 9570 if (linux_br_get(brname, params->ifname) == 0) { 9571 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s", 9572 params->ifname, brname); 9573 br_ifindex = if_nametoindex(brname); 9574 } else { 9575 brname[0] = '\0'; 9576 br_ifindex = 0; 9577 } 9578 9579 for (i = 0; i < params->num_bridge; i++) { 9580 if (params->bridge[i]) { 9581 ifindex = if_nametoindex(params->bridge[i]); 9582 if (ifindex) 9583 add_ifidx(drv, ifindex); 9584 if (ifindex == br_ifindex) 9585 br_added = 1; 9586 } 9587 } 9588 if (!br_added && br_ifindex && 9589 (params->num_bridge == 0 || !params->bridge[0])) 9590 add_ifidx(drv, br_ifindex); 9591 9592 /* start listening for EAPOL on the default AP interface */ 9593 add_ifidx(drv, drv->ifindex); 9594 9595 if (params->num_bridge && params->bridge[0] && 9596 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0) 9597 goto failed; 9598 9599 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE)); 9600 if (drv->eapol_sock < 0) { 9601 wpa_printf(MSG_ERROR, "nl80211: socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE) failed: %s", 9602 strerror(errno)); 9603 goto failed; 9604 } 9605 9606 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL)) 9607 { 9608 wpa_printf(MSG_INFO, "nl80211: Could not register read socket for eapol"); 9609 goto failed; 9610 } 9611 9612 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 9613 params->own_addr)) 9614 goto failed; 9615 9616 memcpy(bss->addr, params->own_addr, ETH_ALEN); 9617 9618 return bss; 9619 9620failed: 9621 wpa_driver_nl80211_deinit(bss); 9622 return NULL; 9623} 9624 9625 9626static void i802_deinit(void *priv) 9627{ 9628 struct i802_bss *bss = priv; 9629 wpa_driver_nl80211_deinit(bss); 9630} 9631 9632 9633static enum nl80211_iftype wpa_driver_nl80211_if_type( 9634 enum wpa_driver_if_type type) 9635{ 9636 switch (type) { 9637 case WPA_IF_STATION: 9638 return NL80211_IFTYPE_STATION; 9639 case WPA_IF_P2P_CLIENT: 9640 case WPA_IF_P2P_GROUP: 9641 return NL80211_IFTYPE_P2P_CLIENT; 9642 case WPA_IF_AP_VLAN: 9643 return NL80211_IFTYPE_AP_VLAN; 9644 case WPA_IF_AP_BSS: 9645 return NL80211_IFTYPE_AP; 9646 case WPA_IF_P2P_GO: 9647 return NL80211_IFTYPE_P2P_GO; 9648 case WPA_IF_P2P_DEVICE: 9649 return NL80211_IFTYPE_P2P_DEVICE; 9650 } 9651 return -1; 9652} 9653 9654 9655#ifdef CONFIG_P2P 9656 9657static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr) 9658{ 9659 struct wpa_driver_nl80211_data *drv; 9660 dl_list_for_each(drv, &global->interfaces, 9661 struct wpa_driver_nl80211_data, list) { 9662 if (os_memcmp(addr, drv->first_bss->addr, ETH_ALEN) == 0) 9663 return 1; 9664 } 9665 return 0; 9666} 9667 9668 9669static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv, 9670 u8 *new_addr) 9671{ 9672 unsigned int idx; 9673 9674 if (!drv->global) 9675 return -1; 9676 9677 os_memcpy(new_addr, drv->first_bss->addr, ETH_ALEN); 9678 for (idx = 0; idx < 64; idx++) { 9679 new_addr[0] = drv->first_bss->addr[0] | 0x02; 9680 new_addr[0] ^= idx << 2; 9681 if (!nl80211_addr_in_use(drv->global, new_addr)) 9682 break; 9683 } 9684 if (idx == 64) 9685 return -1; 9686 9687 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address " 9688 MACSTR, MAC2STR(new_addr)); 9689 9690 return 0; 9691} 9692 9693#endif /* CONFIG_P2P */ 9694 9695 9696struct wdev_info { 9697 u64 wdev_id; 9698 int wdev_id_set; 9699 u8 macaddr[ETH_ALEN]; 9700}; 9701 9702static int nl80211_wdev_handler(struct nl_msg *msg, void *arg) 9703{ 9704 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9705 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9706 struct wdev_info *wi = arg; 9707 9708 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9709 genlmsg_attrlen(gnlh, 0), NULL); 9710 if (tb[NL80211_ATTR_WDEV]) { 9711 wi->wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 9712 wi->wdev_id_set = 1; 9713 } 9714 9715 if (tb[NL80211_ATTR_MAC]) 9716 os_memcpy(wi->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 9717 ETH_ALEN); 9718 9719 return NL_SKIP; 9720} 9721 9722 9723static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type, 9724 const char *ifname, const u8 *addr, 9725 void *bss_ctx, void **drv_priv, 9726 char *force_ifname, u8 *if_addr, 9727 const char *bridge, int use_existing) 9728{ 9729 enum nl80211_iftype nlmode; 9730 struct i802_bss *bss = priv; 9731 struct wpa_driver_nl80211_data *drv = bss->drv; 9732 int ifidx; 9733 int added = 1; 9734 9735 if (addr) 9736 os_memcpy(if_addr, addr, ETH_ALEN); 9737 nlmode = wpa_driver_nl80211_if_type(type); 9738 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { 9739 struct wdev_info p2pdev_info; 9740 9741 os_memset(&p2pdev_info, 0, sizeof(p2pdev_info)); 9742 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 9743 0, nl80211_wdev_handler, 9744 &p2pdev_info, use_existing); 9745 if (!p2pdev_info.wdev_id_set || ifidx != 0) { 9746 wpa_printf(MSG_ERROR, "nl80211: Failed to create a P2P Device interface %s", 9747 ifname); 9748 return -1; 9749 } 9750 9751 drv->global->if_add_wdevid = p2pdev_info.wdev_id; 9752 drv->global->if_add_wdevid_set = p2pdev_info.wdev_id_set; 9753 if (!is_zero_ether_addr(p2pdev_info.macaddr)) 9754 os_memcpy(if_addr, p2pdev_info.macaddr, ETH_ALEN); 9755 wpa_printf(MSG_DEBUG, "nl80211: New P2P Device interface %s (0x%llx) created", 9756 ifname, 9757 (long long unsigned int) p2pdev_info.wdev_id); 9758 } else { 9759 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 9760 0, NULL, NULL, use_existing); 9761 if (use_existing && ifidx == -ENFILE) { 9762 added = 0; 9763 ifidx = if_nametoindex(ifname); 9764 } else if (ifidx < 0) { 9765 return -1; 9766 } 9767 } 9768 9769 if (!addr) { 9770 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 9771 os_memcpy(if_addr, bss->addr, ETH_ALEN); 9772 else if (linux_get_ifhwaddr(drv->global->ioctl_sock, 9773 bss->ifname, if_addr) < 0) { 9774 if (added) 9775 nl80211_remove_iface(drv, ifidx); 9776 return -1; 9777 } 9778 } 9779 9780#ifdef CONFIG_P2P 9781 if (!addr && 9782 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP || 9783 type == WPA_IF_P2P_GO)) { 9784 /* Enforce unique P2P Interface Address */ 9785 u8 new_addr[ETH_ALEN]; 9786 9787 if (linux_get_ifhwaddr(drv->global->ioctl_sock, ifname, 9788 new_addr) < 0) { 9789 nl80211_remove_iface(drv, ifidx); 9790 return -1; 9791 } 9792 if (nl80211_addr_in_use(drv->global, new_addr)) { 9793 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address " 9794 "for P2P group interface"); 9795 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) { 9796 nl80211_remove_iface(drv, ifidx); 9797 return -1; 9798 } 9799 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 9800 new_addr) < 0) { 9801 nl80211_remove_iface(drv, ifidx); 9802 return -1; 9803 } 9804 } 9805 os_memcpy(if_addr, new_addr, ETH_ALEN); 9806 } 9807#endif /* CONFIG_P2P */ 9808 9809 if (type == WPA_IF_AP_BSS) { 9810 struct i802_bss *new_bss = os_zalloc(sizeof(*new_bss)); 9811 if (new_bss == NULL) { 9812 if (added) 9813 nl80211_remove_iface(drv, ifidx); 9814 return -1; 9815 } 9816 9817 if (bridge && 9818 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) { 9819 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new " 9820 "interface %s to a bridge %s", 9821 ifname, bridge); 9822 if (added) 9823 nl80211_remove_iface(drv, ifidx); 9824 os_free(new_bss); 9825 return -1; 9826 } 9827 9828 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1)) 9829 { 9830 nl80211_remove_iface(drv, ifidx); 9831 os_free(new_bss); 9832 return -1; 9833 } 9834 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ); 9835 os_memcpy(new_bss->addr, if_addr, ETH_ALEN); 9836 new_bss->ifindex = ifidx; 9837 new_bss->drv = drv; 9838 new_bss->next = drv->first_bss->next; 9839 new_bss->freq = drv->first_bss->freq; 9840 new_bss->ctx = bss_ctx; 9841 new_bss->added_if = added; 9842 drv->first_bss->next = new_bss; 9843 if (drv_priv) 9844 *drv_priv = new_bss; 9845 nl80211_init_bss(new_bss); 9846 9847 /* Subscribe management frames for this WPA_IF_AP_BSS */ 9848 if (nl80211_setup_ap(new_bss)) 9849 return -1; 9850 } 9851 9852 if (drv->global) 9853 drv->global->if_add_ifindex = ifidx; 9854 9855 return 0; 9856} 9857 9858 9859static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 9860 enum wpa_driver_if_type type, 9861 const char *ifname) 9862{ 9863 struct wpa_driver_nl80211_data *drv = bss->drv; 9864 int ifindex = if_nametoindex(ifname); 9865 9866 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d added_if=%d", 9867 __func__, type, ifname, ifindex, bss->added_if); 9868 if (ifindex > 0 && (bss->added_if || bss->ifindex != ifindex)) 9869 nl80211_remove_iface(drv, ifindex); 9870 9871 if (type != WPA_IF_AP_BSS) 9872 return 0; 9873 9874 if (bss->added_if_into_bridge) { 9875 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 9876 bss->ifname) < 0) 9877 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 9878 "interface %s from bridge %s: %s", 9879 bss->ifname, bss->brname, strerror(errno)); 9880 } 9881 if (bss->added_bridge) { 9882 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 9883 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 9884 "bridge %s: %s", 9885 bss->brname, strerror(errno)); 9886 } 9887 9888 if (bss != drv->first_bss) { 9889 struct i802_bss *tbss; 9890 9891 wpa_printf(MSG_DEBUG, "nl80211: Not the first BSS - remove it"); 9892 for (tbss = drv->first_bss; tbss; tbss = tbss->next) { 9893 if (tbss->next == bss) { 9894 tbss->next = bss->next; 9895 /* Unsubscribe management frames */ 9896 nl80211_teardown_ap(bss); 9897 nl80211_destroy_bss(bss); 9898 os_free(bss); 9899 bss = NULL; 9900 break; 9901 } 9902 } 9903 if (bss) 9904 wpa_printf(MSG_INFO, "nl80211: %s - could not find " 9905 "BSS %p in the list", __func__, bss); 9906 } else { 9907 wpa_printf(MSG_DEBUG, "nl80211: First BSS - reassign context"); 9908 nl80211_teardown_ap(bss); 9909 if (!bss->added_if && !drv->first_bss->next) 9910 wpa_driver_nl80211_del_beacon(drv); 9911 nl80211_destroy_bss(bss); 9912 if (!bss->added_if) 9913 i802_set_iface_flags(bss, 0); 9914 if (drv->first_bss->next) { 9915 drv->first_bss = drv->first_bss->next; 9916 drv->ctx = drv->first_bss->ctx; 9917 os_free(bss); 9918 } else { 9919 wpa_printf(MSG_DEBUG, "nl80211: No second BSS to reassign context to"); 9920 } 9921 } 9922 9923 return 0; 9924} 9925 9926 9927static int cookie_handler(struct nl_msg *msg, void *arg) 9928{ 9929 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9930 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9931 u64 *cookie = arg; 9932 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9933 genlmsg_attrlen(gnlh, 0), NULL); 9934 if (tb[NL80211_ATTR_COOKIE]) 9935 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 9936 return NL_SKIP; 9937} 9938 9939 9940static int nl80211_send_frame_cmd(struct i802_bss *bss, 9941 unsigned int freq, unsigned int wait, 9942 const u8 *buf, size_t buf_len, 9943 u64 *cookie_out, int no_cck, int no_ack, 9944 int offchanok) 9945{ 9946 struct wpa_driver_nl80211_data *drv = bss->drv; 9947 struct nl_msg *msg; 9948 u64 cookie; 9949 int ret = -1; 9950 9951 msg = nlmsg_alloc(); 9952 if (!msg) 9953 return -1; 9954 9955 wpa_printf(MSG_MSGDUMP, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d " 9956 "no_ack=%d offchanok=%d", 9957 freq, wait, no_cck, no_ack, offchanok); 9958 wpa_hexdump(MSG_MSGDUMP, "CMD_FRAME", buf, buf_len); 9959 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME); 9960 9961 if (nl80211_set_iface_id(msg, bss) < 0) 9962 goto nla_put_failure; 9963 if (freq) 9964 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 9965 if (wait) 9966 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait); 9967 if (offchanok && ((drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) || 9968 drv->test_use_roc_tx)) 9969 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK); 9970 if (no_cck) 9971 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 9972 if (no_ack) 9973 NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK); 9974 9975 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf); 9976 9977 cookie = 0; 9978 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 9979 msg = NULL; 9980 if (ret) { 9981 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d " 9982 "(%s) (freq=%u wait=%u)", ret, strerror(-ret), 9983 freq, wait); 9984 goto nla_put_failure; 9985 } 9986 wpa_printf(MSG_MSGDUMP, "nl80211: Frame TX command accepted%s; " 9987 "cookie 0x%llx", no_ack ? " (no ACK)" : "", 9988 (long long unsigned int) cookie); 9989 9990 if (cookie_out) 9991 *cookie_out = no_ack ? (u64) -1 : cookie; 9992 9993nla_put_failure: 9994 nlmsg_free(msg); 9995 return ret; 9996} 9997 9998 9999static int wpa_driver_nl80211_send_action(struct i802_bss *bss, 10000 unsigned int freq, 10001 unsigned int wait_time, 10002 const u8 *dst, const u8 *src, 10003 const u8 *bssid, 10004 const u8 *data, size_t data_len, 10005 int no_cck) 10006{ 10007 struct wpa_driver_nl80211_data *drv = bss->drv; 10008 int ret = -1; 10009 u8 *buf; 10010 struct ieee80211_hdr *hdr; 10011 10012 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, " 10013 "freq=%u MHz wait=%d ms no_cck=%d)", 10014 drv->ifindex, freq, wait_time, no_cck); 10015 10016 buf = os_zalloc(24 + data_len); 10017 if (buf == NULL) 10018 return ret; 10019 os_memcpy(buf + 24, data, data_len); 10020 hdr = (struct ieee80211_hdr *) buf; 10021 hdr->frame_control = 10022 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION); 10023 os_memcpy(hdr->addr1, dst, ETH_ALEN); 10024 os_memcpy(hdr->addr2, src, ETH_ALEN); 10025 os_memcpy(hdr->addr3, bssid, ETH_ALEN); 10026 10027 if (is_ap_interface(drv->nlmode) && 10028 (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) || 10029 (int) freq == bss->freq || drv->device_ap_sme || 10030 !drv->use_monitor)) 10031 ret = wpa_driver_nl80211_send_mlme(bss, buf, 24 + data_len, 10032 0, freq, no_cck, 1, 10033 wait_time); 10034 else 10035 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf, 10036 24 + data_len, 10037 &drv->send_action_cookie, 10038 no_cck, 0, 1); 10039 10040 os_free(buf); 10041 return ret; 10042} 10043 10044 10045static void wpa_driver_nl80211_send_action_cancel_wait(void *priv) 10046{ 10047 struct i802_bss *bss = priv; 10048 struct wpa_driver_nl80211_data *drv = bss->drv; 10049 struct nl_msg *msg; 10050 int ret; 10051 10052 msg = nlmsg_alloc(); 10053 if (!msg) 10054 return; 10055 10056 wpa_printf(MSG_DEBUG, "nl80211: Cancel TX frame wait: cookie=0x%llx", 10057 (long long unsigned int) drv->send_action_cookie); 10058 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL); 10059 10060 if (nl80211_set_iface_id(msg, bss) < 0) 10061 goto nla_put_failure; 10062 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie); 10063 10064 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10065 msg = NULL; 10066 if (ret) 10067 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d " 10068 "(%s)", ret, strerror(-ret)); 10069 10070 nla_put_failure: 10071 nlmsg_free(msg); 10072} 10073 10074 10075static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq, 10076 unsigned int duration) 10077{ 10078 struct i802_bss *bss = priv; 10079 struct wpa_driver_nl80211_data *drv = bss->drv; 10080 struct nl_msg *msg; 10081 int ret; 10082 u64 cookie; 10083 10084 msg = nlmsg_alloc(); 10085 if (!msg) 10086 return -1; 10087 10088 nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL); 10089 10090 if (nl80211_set_iface_id(msg, bss) < 0) 10091 goto nla_put_failure; 10092 10093 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 10094 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); 10095 10096 cookie = 0; 10097 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 10098 msg = NULL; 10099 if (ret == 0) { 10100 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie " 10101 "0x%llx for freq=%u MHz duration=%u", 10102 (long long unsigned int) cookie, freq, duration); 10103 drv->remain_on_chan_cookie = cookie; 10104 drv->pending_remain_on_chan = 1; 10105 return 0; 10106 } 10107 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel " 10108 "(freq=%d duration=%u): %d (%s)", 10109 freq, duration, ret, strerror(-ret)); 10110nla_put_failure: 10111 nlmsg_free(msg); 10112 return -1; 10113} 10114 10115 10116static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv) 10117{ 10118 struct i802_bss *bss = priv; 10119 struct wpa_driver_nl80211_data *drv = bss->drv; 10120 struct nl_msg *msg; 10121 int ret; 10122 10123 if (!drv->pending_remain_on_chan) { 10124 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel " 10125 "to cancel"); 10126 return -1; 10127 } 10128 10129 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie " 10130 "0x%llx", 10131 (long long unsigned int) drv->remain_on_chan_cookie); 10132 10133 msg = nlmsg_alloc(); 10134 if (!msg) 10135 return -1; 10136 10137 nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL); 10138 10139 if (nl80211_set_iface_id(msg, bss) < 0) 10140 goto nla_put_failure; 10141 10142 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie); 10143 10144 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10145 msg = NULL; 10146 if (ret == 0) 10147 return 0; 10148 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: " 10149 "%d (%s)", ret, strerror(-ret)); 10150nla_put_failure: 10151 nlmsg_free(msg); 10152 return -1; 10153} 10154 10155 10156static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report) 10157{ 10158 struct wpa_driver_nl80211_data *drv = bss->drv; 10159 10160 if (!report) { 10161 if (bss->nl_preq && drv->device_ap_sme && 10162 is_ap_interface(drv->nlmode)) { 10163 /* 10164 * Do not disable Probe Request reporting that was 10165 * enabled in nl80211_setup_ap(). 10166 */ 10167 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of " 10168 "Probe Request reporting nl_preq=%p while " 10169 "in AP mode", bss->nl_preq); 10170 } else if (bss->nl_preq) { 10171 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request " 10172 "reporting nl_preq=%p", bss->nl_preq); 10173 nl80211_destroy_eloop_handle(&bss->nl_preq); 10174 } 10175 return 0; 10176 } 10177 10178 if (bss->nl_preq) { 10179 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting " 10180 "already on! nl_preq=%p", bss->nl_preq); 10181 return 0; 10182 } 10183 10184 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq"); 10185 if (bss->nl_preq == NULL) 10186 return -1; 10187 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request " 10188 "reporting nl_preq=%p", bss->nl_preq); 10189 10190 if (nl80211_register_frame(bss, bss->nl_preq, 10191 (WLAN_FC_TYPE_MGMT << 2) | 10192 (WLAN_FC_STYPE_PROBE_REQ << 4), 10193 NULL, 0) < 0) 10194 goto out_err; 10195 10196 nl80211_register_eloop_read(&bss->nl_preq, 10197 wpa_driver_nl80211_event_receive, 10198 bss->nl_cb); 10199 10200 return 0; 10201 10202 out_err: 10203 nl_destroy_handles(&bss->nl_preq); 10204 return -1; 10205} 10206 10207 10208static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 10209 int ifindex, int disabled) 10210{ 10211 struct nl_msg *msg; 10212 struct nlattr *bands, *band; 10213 int ret; 10214 10215 msg = nlmsg_alloc(); 10216 if (!msg) 10217 return -1; 10218 10219 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK); 10220 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 10221 10222 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES); 10223 if (!bands) 10224 goto nla_put_failure; 10225 10226 /* 10227 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything 10228 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS 10229 * rates. All 5 GHz rates are left enabled. 10230 */ 10231 band = nla_nest_start(msg, NL80211_BAND_2GHZ); 10232 if (!band) 10233 goto nla_put_failure; 10234 if (disabled) { 10235 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8, 10236 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 10237 } 10238 nla_nest_end(msg, band); 10239 10240 nla_nest_end(msg, bands); 10241 10242 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10243 msg = NULL; 10244 if (ret) { 10245 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d " 10246 "(%s)", ret, strerror(-ret)); 10247 } else 10248 drv->disabled_11b_rates = disabled; 10249 10250 return ret; 10251 10252nla_put_failure: 10253 nlmsg_free(msg); 10254 return -1; 10255} 10256 10257 10258static int wpa_driver_nl80211_deinit_ap(void *priv) 10259{ 10260 struct i802_bss *bss = priv; 10261 struct wpa_driver_nl80211_data *drv = bss->drv; 10262 if (!is_ap_interface(drv->nlmode)) 10263 return -1; 10264 wpa_driver_nl80211_del_beacon(drv); 10265 10266 /* 10267 * If the P2P GO interface was dynamically added, then it is 10268 * possible that the interface change to station is not possible. 10269 */ 10270 if (drv->nlmode == NL80211_IFTYPE_P2P_GO && bss->if_dynamic) 10271 return 0; 10272 10273 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 10274} 10275 10276 10277static int wpa_driver_nl80211_stop_ap(void *priv) 10278{ 10279 struct i802_bss *bss = priv; 10280 struct wpa_driver_nl80211_data *drv = bss->drv; 10281 if (!is_ap_interface(drv->nlmode)) 10282 return -1; 10283 wpa_driver_nl80211_del_beacon(drv); 10284 bss->beacon_set = 0; 10285 return 0; 10286} 10287 10288 10289static int wpa_driver_nl80211_deinit_p2p_cli(void *priv) 10290{ 10291 struct i802_bss *bss = priv; 10292 struct wpa_driver_nl80211_data *drv = bss->drv; 10293 if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT) 10294 return -1; 10295 10296 /* 10297 * If the P2P Client interface was dynamically added, then it is 10298 * possible that the interface change to station is not possible. 10299 */ 10300 if (bss->if_dynamic) 10301 return 0; 10302 10303 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 10304} 10305 10306 10307static void wpa_driver_nl80211_resume(void *priv) 10308{ 10309 struct i802_bss *bss = priv; 10310 10311 if (i802_set_iface_flags(bss, 1)) 10312 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on resume event"); 10313} 10314 10315 10316static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap, 10317 const u8 *ies, size_t ies_len) 10318{ 10319 struct i802_bss *bss = priv; 10320 struct wpa_driver_nl80211_data *drv = bss->drv; 10321 int ret; 10322 u8 *data, *pos; 10323 size_t data_len; 10324 const u8 *own_addr = bss->addr; 10325 10326 if (action != 1) { 10327 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action " 10328 "action %d", action); 10329 return -1; 10330 } 10331 10332 /* 10333 * Action frame payload: 10334 * Category[1] = 6 (Fast BSS Transition) 10335 * Action[1] = 1 (Fast BSS Transition Request) 10336 * STA Address 10337 * Target AP Address 10338 * FT IEs 10339 */ 10340 10341 data_len = 2 + 2 * ETH_ALEN + ies_len; 10342 data = os_malloc(data_len); 10343 if (data == NULL) 10344 return -1; 10345 pos = data; 10346 *pos++ = 0x06; /* FT Action category */ 10347 *pos++ = action; 10348 os_memcpy(pos, own_addr, ETH_ALEN); 10349 pos += ETH_ALEN; 10350 os_memcpy(pos, target_ap, ETH_ALEN); 10351 pos += ETH_ALEN; 10352 os_memcpy(pos, ies, ies_len); 10353 10354 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0, 10355 drv->bssid, own_addr, drv->bssid, 10356 data, data_len, 0); 10357 os_free(data); 10358 10359 return ret; 10360} 10361 10362 10363static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis) 10364{ 10365 struct i802_bss *bss = priv; 10366 struct wpa_driver_nl80211_data *drv = bss->drv; 10367 struct nl_msg *msg; 10368 struct nlattr *cqm; 10369 int ret = -1; 10370 10371 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d " 10372 "hysteresis=%d", threshold, hysteresis); 10373 10374 msg = nlmsg_alloc(); 10375 if (!msg) 10376 return -1; 10377 10378 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM); 10379 10380 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10381 10382 cqm = nla_nest_start(msg, NL80211_ATTR_CQM); 10383 if (cqm == NULL) 10384 goto nla_put_failure; 10385 10386 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THOLD, threshold); 10387 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_HYST, hysteresis); 10388 nla_nest_end(msg, cqm); 10389 10390 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10391 msg = NULL; 10392 10393nla_put_failure: 10394 nlmsg_free(msg); 10395 return ret; 10396} 10397 10398 10399static int get_channel_width(struct nl_msg *msg, void *arg) 10400{ 10401 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 10402 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 10403 struct wpa_signal_info *sig_change = arg; 10404 10405 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 10406 genlmsg_attrlen(gnlh, 0), NULL); 10407 10408 sig_change->center_frq1 = -1; 10409 sig_change->center_frq2 = -1; 10410 sig_change->chanwidth = CHAN_WIDTH_UNKNOWN; 10411 10412 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) { 10413 sig_change->chanwidth = convert2width( 10414 nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH])); 10415 if (tb[NL80211_ATTR_CENTER_FREQ1]) 10416 sig_change->center_frq1 = 10417 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); 10418 if (tb[NL80211_ATTR_CENTER_FREQ2]) 10419 sig_change->center_frq2 = 10420 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); 10421 } 10422 10423 return NL_SKIP; 10424} 10425 10426 10427static int nl80211_get_channel_width(struct wpa_driver_nl80211_data *drv, 10428 struct wpa_signal_info *sig) 10429{ 10430 struct nl_msg *msg; 10431 10432 msg = nlmsg_alloc(); 10433 if (!msg) 10434 return -ENOMEM; 10435 10436 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_INTERFACE); 10437 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10438 10439 return send_and_recv_msgs(drv, msg, get_channel_width, sig); 10440 10441nla_put_failure: 10442 nlmsg_free(msg); 10443 return -ENOBUFS; 10444} 10445 10446 10447static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si) 10448{ 10449 struct i802_bss *bss = priv; 10450 struct wpa_driver_nl80211_data *drv = bss->drv; 10451 int res; 10452 10453 os_memset(si, 0, sizeof(*si)); 10454 res = nl80211_get_link_signal(drv, si); 10455 if (res != 0) 10456 return res; 10457 10458 res = nl80211_get_channel_width(drv, si); 10459 if (res != 0) 10460 return res; 10461 10462 return nl80211_get_link_noise(drv, si); 10463} 10464 10465 10466static int wpa_driver_nl80211_shared_freq(void *priv) 10467{ 10468 struct i802_bss *bss = priv; 10469 struct wpa_driver_nl80211_data *drv = bss->drv; 10470 struct wpa_driver_nl80211_data *driver; 10471 int freq = 0; 10472 10473 /* 10474 * If the same PHY is in connected state with some other interface, 10475 * then retrieve the assoc freq. 10476 */ 10477 wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s", 10478 drv->phyname); 10479 10480 dl_list_for_each(driver, &drv->global->interfaces, 10481 struct wpa_driver_nl80211_data, list) { 10482 if (drv == driver || 10483 os_strcmp(drv->phyname, driver->phyname) != 0 || 10484 !driver->associated) 10485 continue; 10486 10487 wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s " 10488 MACSTR, 10489 driver->phyname, driver->first_bss->ifname, 10490 MAC2STR(driver->first_bss->addr)); 10491 if (is_ap_interface(driver->nlmode)) 10492 freq = driver->first_bss->freq; 10493 else 10494 freq = nl80211_get_assoc_freq(driver); 10495 wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d", 10496 drv->phyname, freq); 10497 } 10498 10499 if (!freq) 10500 wpa_printf(MSG_DEBUG, "nl80211: No shared interface for " 10501 "PHY (%s) in associated state", drv->phyname); 10502 10503 return freq; 10504} 10505 10506 10507static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len, 10508 int encrypt) 10509{ 10510 struct i802_bss *bss = priv; 10511 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0, 10512 0, 0, 0, 0); 10513} 10514 10515 10516static int nl80211_set_param(void *priv, const char *param) 10517{ 10518 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param); 10519 if (param == NULL) 10520 return 0; 10521 10522#ifdef CONFIG_P2P 10523 if (os_strstr(param, "use_p2p_group_interface=1")) { 10524 struct i802_bss *bss = priv; 10525 struct wpa_driver_nl80211_data *drv = bss->drv; 10526 10527 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 10528 "interface"); 10529 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 10530 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 10531 } 10532 10533 if (os_strstr(param, "p2p_device=1")) { 10534 struct i802_bss *bss = priv; 10535 struct wpa_driver_nl80211_data *drv = bss->drv; 10536 drv->allow_p2p_device = 1; 10537 } 10538#endif /* CONFIG_P2P */ 10539 10540 if (os_strstr(param, "use_monitor=1")) { 10541 struct i802_bss *bss = priv; 10542 struct wpa_driver_nl80211_data *drv = bss->drv; 10543 drv->use_monitor = 1; 10544 } 10545 10546 if (os_strstr(param, "force_connect_cmd=1")) { 10547 struct i802_bss *bss = priv; 10548 struct wpa_driver_nl80211_data *drv = bss->drv; 10549 drv->capa.flags &= ~WPA_DRIVER_FLAGS_SME; 10550 } 10551 10552 if (os_strstr(param, "no_offchannel_tx=1")) { 10553 struct i802_bss *bss = priv; 10554 struct wpa_driver_nl80211_data *drv = bss->drv; 10555 drv->capa.flags &= ~WPA_DRIVER_FLAGS_OFFCHANNEL_TX; 10556 drv->test_use_roc_tx = 1; 10557 } 10558 10559 return 0; 10560} 10561 10562 10563static void * nl80211_global_init(void) 10564{ 10565 struct nl80211_global *global; 10566 struct netlink_config *cfg; 10567 10568 global = os_zalloc(sizeof(*global)); 10569 if (global == NULL) 10570 return NULL; 10571 global->ioctl_sock = -1; 10572 dl_list_init(&global->interfaces); 10573 global->if_add_ifindex = -1; 10574 10575 cfg = os_zalloc(sizeof(*cfg)); 10576 if (cfg == NULL) 10577 goto err; 10578 10579 cfg->ctx = global; 10580 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink; 10581 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink; 10582 global->netlink = netlink_init(cfg); 10583 if (global->netlink == NULL) { 10584 os_free(cfg); 10585 goto err; 10586 } 10587 10588 if (wpa_driver_nl80211_init_nl_global(global) < 0) 10589 goto err; 10590 10591 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0); 10592 if (global->ioctl_sock < 0) { 10593 wpa_printf(MSG_ERROR, "nl80211: socket(PF_INET,SOCK_DGRAM) failed: %s", 10594 strerror(errno)); 10595 goto err; 10596 } 10597 10598 return global; 10599 10600err: 10601 nl80211_global_deinit(global); 10602 return NULL; 10603} 10604 10605 10606static void nl80211_global_deinit(void *priv) 10607{ 10608 struct nl80211_global *global = priv; 10609 if (global == NULL) 10610 return; 10611 if (!dl_list_empty(&global->interfaces)) { 10612 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at " 10613 "nl80211_global_deinit", 10614 dl_list_len(&global->interfaces)); 10615 } 10616 10617 if (global->netlink) 10618 netlink_deinit(global->netlink); 10619 10620 nl_destroy_handles(&global->nl); 10621 10622 if (global->nl_event) 10623 nl80211_destroy_eloop_handle(&global->nl_event); 10624 10625 nl_cb_put(global->nl_cb); 10626 10627 if (global->ioctl_sock >= 0) 10628 close(global->ioctl_sock); 10629 10630 os_free(global); 10631} 10632 10633 10634static const char * nl80211_get_radio_name(void *priv) 10635{ 10636 struct i802_bss *bss = priv; 10637 struct wpa_driver_nl80211_data *drv = bss->drv; 10638 return drv->phyname; 10639} 10640 10641 10642static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid, 10643 const u8 *pmkid) 10644{ 10645 struct nl_msg *msg; 10646 10647 msg = nlmsg_alloc(); 10648 if (!msg) 10649 return -ENOMEM; 10650 10651 nl80211_cmd(bss->drv, msg, 0, cmd); 10652 10653 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 10654 if (pmkid) 10655 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid); 10656 if (bssid) 10657 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); 10658 10659 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 10660 nla_put_failure: 10661 nlmsg_free(msg); 10662 return -ENOBUFS; 10663} 10664 10665 10666static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 10667{ 10668 struct i802_bss *bss = priv; 10669 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid)); 10670 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid); 10671} 10672 10673 10674static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 10675{ 10676 struct i802_bss *bss = priv; 10677 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR, 10678 MAC2STR(bssid)); 10679 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid); 10680} 10681 10682 10683static int nl80211_flush_pmkid(void *priv) 10684{ 10685 struct i802_bss *bss = priv; 10686 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs"); 10687 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL); 10688} 10689 10690 10691static void clean_survey_results(struct survey_results *survey_results) 10692{ 10693 struct freq_survey *survey, *tmp; 10694 10695 if (dl_list_empty(&survey_results->survey_list)) 10696 return; 10697 10698 dl_list_for_each_safe(survey, tmp, &survey_results->survey_list, 10699 struct freq_survey, list) { 10700 dl_list_del(&survey->list); 10701 os_free(survey); 10702 } 10703} 10704 10705 10706static void add_survey(struct nlattr **sinfo, u32 ifidx, 10707 struct dl_list *survey_list) 10708{ 10709 struct freq_survey *survey; 10710 10711 survey = os_zalloc(sizeof(struct freq_survey)); 10712 if (!survey) 10713 return; 10714 10715 survey->ifidx = ifidx; 10716 survey->freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); 10717 survey->filled = 0; 10718 10719 if (sinfo[NL80211_SURVEY_INFO_NOISE]) { 10720 survey->nf = (int8_t) 10721 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 10722 survey->filled |= SURVEY_HAS_NF; 10723 } 10724 10725 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]) { 10726 survey->channel_time = 10727 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]); 10728 survey->filled |= SURVEY_HAS_CHAN_TIME; 10729 } 10730 10731 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]) { 10732 survey->channel_time_busy = 10733 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]); 10734 survey->filled |= SURVEY_HAS_CHAN_TIME_BUSY; 10735 } 10736 10737 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]) { 10738 survey->channel_time_rx = 10739 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]); 10740 survey->filled |= SURVEY_HAS_CHAN_TIME_RX; 10741 } 10742 10743 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]) { 10744 survey->channel_time_tx = 10745 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]); 10746 survey->filled |= SURVEY_HAS_CHAN_TIME_TX; 10747 } 10748 10749 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)", 10750 survey->freq, 10751 survey->nf, 10752 (unsigned long int) survey->channel_time, 10753 (unsigned long int) survey->channel_time_busy, 10754 (unsigned long int) survey->channel_time_tx, 10755 (unsigned long int) survey->channel_time_rx, 10756 survey->filled); 10757 10758 dl_list_add_tail(survey_list, &survey->list); 10759} 10760 10761 10762static int check_survey_ok(struct nlattr **sinfo, u32 surveyed_freq, 10763 unsigned int freq_filter) 10764{ 10765 if (!freq_filter) 10766 return 1; 10767 10768 return freq_filter == surveyed_freq; 10769} 10770 10771 10772static int survey_handler(struct nl_msg *msg, void *arg) 10773{ 10774 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 10775 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 10776 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 10777 struct survey_results *survey_results; 10778 u32 surveyed_freq = 0; 10779 u32 ifidx; 10780 10781 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 10782 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 10783 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 10784 }; 10785 10786 survey_results = (struct survey_results *) arg; 10787 10788 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 10789 genlmsg_attrlen(gnlh, 0), NULL); 10790 10791 if (!tb[NL80211_ATTR_IFINDEX]) 10792 return NL_SKIP; 10793 10794 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 10795 10796 if (!tb[NL80211_ATTR_SURVEY_INFO]) 10797 return NL_SKIP; 10798 10799 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 10800 tb[NL80211_ATTR_SURVEY_INFO], 10801 survey_policy)) 10802 return NL_SKIP; 10803 10804 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) { 10805 wpa_printf(MSG_ERROR, "nl80211: Invalid survey data"); 10806 return NL_SKIP; 10807 } 10808 10809 surveyed_freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); 10810 10811 if (!check_survey_ok(sinfo, surveyed_freq, 10812 survey_results->freq_filter)) 10813 return NL_SKIP; 10814 10815 if (survey_results->freq_filter && 10816 survey_results->freq_filter != surveyed_freq) { 10817 wpa_printf(MSG_EXCESSIVE, "nl80211: Ignoring survey data for freq %d MHz", 10818 surveyed_freq); 10819 return NL_SKIP; 10820 } 10821 10822 add_survey(sinfo, ifidx, &survey_results->survey_list); 10823 10824 return NL_SKIP; 10825} 10826 10827 10828static int wpa_driver_nl80211_get_survey(void *priv, unsigned int freq) 10829{ 10830 struct i802_bss *bss = priv; 10831 struct wpa_driver_nl80211_data *drv = bss->drv; 10832 struct nl_msg *msg; 10833 int err = -ENOBUFS; 10834 union wpa_event_data data; 10835 struct survey_results *survey_results; 10836 10837 os_memset(&data, 0, sizeof(data)); 10838 survey_results = &data.survey_results; 10839 10840 dl_list_init(&survey_results->survey_list); 10841 10842 msg = nlmsg_alloc(); 10843 if (!msg) 10844 goto nla_put_failure; 10845 10846 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 10847 10848 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10849 10850 if (freq) 10851 data.survey_results.freq_filter = freq; 10852 10853 do { 10854 wpa_printf(MSG_DEBUG, "nl80211: Fetch survey data"); 10855 err = send_and_recv_msgs(drv, msg, survey_handler, 10856 survey_results); 10857 } while (err > 0); 10858 10859 if (err) { 10860 wpa_printf(MSG_ERROR, "nl80211: Failed to process survey data"); 10861 goto out_clean; 10862 } 10863 10864 wpa_supplicant_event(drv->ctx, EVENT_SURVEY, &data); 10865 10866out_clean: 10867 clean_survey_results(survey_results); 10868nla_put_failure: 10869 return err; 10870} 10871 10872 10873static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck, 10874 const u8 *replay_ctr) 10875{ 10876 struct i802_bss *bss = priv; 10877 struct wpa_driver_nl80211_data *drv = bss->drv; 10878 struct nlattr *replay_nested; 10879 struct nl_msg *msg; 10880 10881 msg = nlmsg_alloc(); 10882 if (!msg) 10883 return; 10884 10885 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD); 10886 10887 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10888 10889 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); 10890 if (!replay_nested) 10891 goto nla_put_failure; 10892 10893 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek); 10894 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck); 10895 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN, 10896 replay_ctr); 10897 10898 nla_nest_end(msg, replay_nested); 10899 10900 send_and_recv_msgs(drv, msg, NULL, NULL); 10901 return; 10902 nla_put_failure: 10903 nlmsg_free(msg); 10904} 10905 10906 10907static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr, 10908 const u8 *addr, int qos) 10909{ 10910 /* send data frame to poll STA and check whether 10911 * this frame is ACKed */ 10912 struct { 10913 struct ieee80211_hdr hdr; 10914 u16 qos_ctl; 10915 } STRUCT_PACKED nulldata; 10916 size_t size; 10917 10918 /* Send data frame to poll STA and check whether this frame is ACKed */ 10919 10920 os_memset(&nulldata, 0, sizeof(nulldata)); 10921 10922 if (qos) { 10923 nulldata.hdr.frame_control = 10924 IEEE80211_FC(WLAN_FC_TYPE_DATA, 10925 WLAN_FC_STYPE_QOS_NULL); 10926 size = sizeof(nulldata); 10927 } else { 10928 nulldata.hdr.frame_control = 10929 IEEE80211_FC(WLAN_FC_TYPE_DATA, 10930 WLAN_FC_STYPE_NULLFUNC); 10931 size = sizeof(struct ieee80211_hdr); 10932 } 10933 10934 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS); 10935 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN); 10936 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 10937 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 10938 10939 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0, 0, 0, 10940 0, 0) < 0) 10941 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to " 10942 "send poll frame"); 10943} 10944 10945static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr, 10946 int qos) 10947{ 10948 struct i802_bss *bss = priv; 10949 struct wpa_driver_nl80211_data *drv = bss->drv; 10950 struct nl_msg *msg; 10951 10952 if (!drv->poll_command_supported) { 10953 nl80211_send_null_frame(bss, own_addr, addr, qos); 10954 return; 10955 } 10956 10957 msg = nlmsg_alloc(); 10958 if (!msg) 10959 return; 10960 10961 nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT); 10962 10963 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10964 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 10965 10966 send_and_recv_msgs(drv, msg, NULL, NULL); 10967 return; 10968 nla_put_failure: 10969 nlmsg_free(msg); 10970} 10971 10972 10973static int nl80211_set_power_save(struct i802_bss *bss, int enabled) 10974{ 10975 struct nl_msg *msg; 10976 10977 msg = nlmsg_alloc(); 10978 if (!msg) 10979 return -ENOMEM; 10980 10981 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE); 10982 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10983 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, 10984 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED); 10985 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 10986nla_put_failure: 10987 nlmsg_free(msg); 10988 return -ENOBUFS; 10989} 10990 10991 10992static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps, 10993 int ctwindow) 10994{ 10995 struct i802_bss *bss = priv; 10996 10997 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d " 10998 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow); 10999 11000 if (opp_ps != -1 || ctwindow != -1) { 11001#ifdef ANDROID_P2P 11002 wpa_driver_set_p2p_ps(priv, legacy_ps, opp_ps, ctwindow); 11003#else /* ANDROID_P2P */ 11004 return -1; /* Not yet supported */ 11005#endif /* ANDROID_P2P */ 11006 } 11007 11008 if (legacy_ps == -1) 11009 return 0; 11010 if (legacy_ps != 0 && legacy_ps != 1) 11011 return -1; /* Not yet supported */ 11012 11013 return nl80211_set_power_save(bss, legacy_ps); 11014} 11015 11016 11017static int nl80211_start_radar_detection(void *priv, 11018 struct hostapd_freq_params *freq) 11019{ 11020 struct i802_bss *bss = priv; 11021 struct wpa_driver_nl80211_data *drv = bss->drv; 11022 struct nl_msg *msg; 11023 int ret; 11024 11025 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)", 11026 freq->freq, freq->ht_enabled, freq->vht_enabled, 11027 freq->bandwidth, freq->center_freq1, freq->center_freq2); 11028 11029 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_RADAR)) { 11030 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support radar " 11031 "detection"); 11032 return -1; 11033 } 11034 11035 msg = nlmsg_alloc(); 11036 if (!msg) 11037 return -1; 11038 11039 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_RADAR_DETECT); 11040 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11041 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); 11042 11043 if (freq->vht_enabled) { 11044 switch (freq->bandwidth) { 11045 case 20: 11046 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 11047 NL80211_CHAN_WIDTH_20); 11048 break; 11049 case 40: 11050 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 11051 NL80211_CHAN_WIDTH_40); 11052 break; 11053 case 80: 11054 if (freq->center_freq2) 11055 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 11056 NL80211_CHAN_WIDTH_80P80); 11057 else 11058 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 11059 NL80211_CHAN_WIDTH_80); 11060 break; 11061 case 160: 11062 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 11063 NL80211_CHAN_WIDTH_160); 11064 break; 11065 default: 11066 return -1; 11067 } 11068 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); 11069 if (freq->center_freq2) 11070 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, 11071 freq->center_freq2); 11072 } else if (freq->ht_enabled) { 11073 switch (freq->sec_channel_offset) { 11074 case -1: 11075 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 11076 NL80211_CHAN_HT40MINUS); 11077 break; 11078 case 1: 11079 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 11080 NL80211_CHAN_HT40PLUS); 11081 break; 11082 default: 11083 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 11084 NL80211_CHAN_HT20); 11085 break; 11086 } 11087 } 11088 11089 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 11090 if (ret == 0) 11091 return 0; 11092 wpa_printf(MSG_DEBUG, "nl80211: Failed to start radar detection: " 11093 "%d (%s)", ret, strerror(-ret)); 11094nla_put_failure: 11095 return -1; 11096} 11097 11098#ifdef CONFIG_TDLS 11099 11100static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code, 11101 u8 dialog_token, u16 status_code, 11102 const u8 *buf, size_t len) 11103{ 11104 struct i802_bss *bss = priv; 11105 struct wpa_driver_nl80211_data *drv = bss->drv; 11106 struct nl_msg *msg; 11107 11108 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 11109 return -EOPNOTSUPP; 11110 11111 if (!dst) 11112 return -EINVAL; 11113 11114 msg = nlmsg_alloc(); 11115 if (!msg) 11116 return -ENOMEM; 11117 11118 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT); 11119 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11120 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); 11121 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code); 11122 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token); 11123 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code); 11124 NLA_PUT(msg, NL80211_ATTR_IE, len, buf); 11125 11126 return send_and_recv_msgs(drv, msg, NULL, NULL); 11127 11128nla_put_failure: 11129 nlmsg_free(msg); 11130 return -ENOBUFS; 11131} 11132 11133 11134static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer) 11135{ 11136 struct i802_bss *bss = priv; 11137 struct wpa_driver_nl80211_data *drv = bss->drv; 11138 struct nl_msg *msg; 11139 enum nl80211_tdls_operation nl80211_oper; 11140 11141 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 11142 return -EOPNOTSUPP; 11143 11144 switch (oper) { 11145 case TDLS_DISCOVERY_REQ: 11146 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ; 11147 break; 11148 case TDLS_SETUP: 11149 nl80211_oper = NL80211_TDLS_SETUP; 11150 break; 11151 case TDLS_TEARDOWN: 11152 nl80211_oper = NL80211_TDLS_TEARDOWN; 11153 break; 11154 case TDLS_ENABLE_LINK: 11155 nl80211_oper = NL80211_TDLS_ENABLE_LINK; 11156 break; 11157 case TDLS_DISABLE_LINK: 11158 nl80211_oper = NL80211_TDLS_DISABLE_LINK; 11159 break; 11160 case TDLS_ENABLE: 11161 return 0; 11162 case TDLS_DISABLE: 11163 return 0; 11164 default: 11165 return -EINVAL; 11166 } 11167 11168 msg = nlmsg_alloc(); 11169 if (!msg) 11170 return -ENOMEM; 11171 11172 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER); 11173 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper); 11174 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11175 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer); 11176 11177 return send_and_recv_msgs(drv, msg, NULL, NULL); 11178 11179nla_put_failure: 11180 nlmsg_free(msg); 11181 return -ENOBUFS; 11182} 11183 11184#endif /* CONFIG TDLS */ 11185 11186 11187#ifdef ANDROID 11188 11189typedef struct android_wifi_priv_cmd { 11190 char *buf; 11191 int used_len; 11192 int total_len; 11193} android_wifi_priv_cmd; 11194 11195static int drv_errors = 0; 11196 11197static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv) 11198{ 11199 drv_errors++; 11200 if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) { 11201 drv_errors = 0; 11202 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED"); 11203 } 11204} 11205 11206 11207static int android_priv_cmd(struct i802_bss *bss, const char *cmd) 11208{ 11209 struct wpa_driver_nl80211_data *drv = bss->drv; 11210 struct ifreq ifr; 11211 android_wifi_priv_cmd priv_cmd; 11212 char buf[MAX_DRV_CMD_SIZE]; 11213 int ret; 11214 11215 os_memset(&ifr, 0, sizeof(ifr)); 11216 os_memset(&priv_cmd, 0, sizeof(priv_cmd)); 11217 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 11218 11219 os_memset(buf, 0, sizeof(buf)); 11220 os_strlcpy(buf, cmd, sizeof(buf)); 11221 11222 priv_cmd.buf = buf; 11223 priv_cmd.used_len = sizeof(buf); 11224 priv_cmd.total_len = sizeof(buf); 11225 ifr.ifr_data = &priv_cmd; 11226 11227 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 11228 if (ret < 0) { 11229 wpa_printf(MSG_ERROR, "%s: failed to issue private commands", 11230 __func__); 11231 wpa_driver_send_hang_msg(drv); 11232 return ret; 11233 } 11234 11235 drv_errors = 0; 11236 return 0; 11237} 11238 11239 11240static int android_pno_start(struct i802_bss *bss, 11241 struct wpa_driver_scan_params *params) 11242{ 11243 struct wpa_driver_nl80211_data *drv = bss->drv; 11244 struct ifreq ifr; 11245 android_wifi_priv_cmd priv_cmd; 11246 int ret = 0, i = 0, bp; 11247 char buf[WEXT_PNO_MAX_COMMAND_SIZE]; 11248 11249 bp = WEXT_PNOSETUP_HEADER_SIZE; 11250 os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp); 11251 buf[bp++] = WEXT_PNO_TLV_PREFIX; 11252 buf[bp++] = WEXT_PNO_TLV_VERSION; 11253 buf[bp++] = WEXT_PNO_TLV_SUBVERSION; 11254 buf[bp++] = WEXT_PNO_TLV_RESERVED; 11255 11256 while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) { 11257 /* Check that there is enough space needed for 1 more SSID, the 11258 * other sections and null termination */ 11259 if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN + 11260 WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf)) 11261 break; 11262 wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan", 11263 params->ssids[i].ssid, 11264 params->ssids[i].ssid_len); 11265 buf[bp++] = WEXT_PNO_SSID_SECTION; 11266 buf[bp++] = params->ssids[i].ssid_len; 11267 os_memcpy(&buf[bp], params->ssids[i].ssid, 11268 params->ssids[i].ssid_len); 11269 bp += params->ssids[i].ssid_len; 11270 i++; 11271 } 11272 11273 buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION; 11274 os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x", 11275 WEXT_PNO_SCAN_INTERVAL); 11276 bp += WEXT_PNO_SCAN_INTERVAL_LENGTH; 11277 11278 buf[bp++] = WEXT_PNO_REPEAT_SECTION; 11279 os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x", 11280 WEXT_PNO_REPEAT); 11281 bp += WEXT_PNO_REPEAT_LENGTH; 11282 11283 buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION; 11284 os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x", 11285 WEXT_PNO_MAX_REPEAT); 11286 bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1; 11287 11288 memset(&ifr, 0, sizeof(ifr)); 11289 memset(&priv_cmd, 0, sizeof(priv_cmd)); 11290 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 11291 11292 priv_cmd.buf = buf; 11293 priv_cmd.used_len = bp; 11294 priv_cmd.total_len = bp; 11295 ifr.ifr_data = &priv_cmd; 11296 11297 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 11298 11299 if (ret < 0) { 11300 wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d", 11301 ret); 11302 wpa_driver_send_hang_msg(drv); 11303 return ret; 11304 } 11305 11306 drv_errors = 0; 11307 11308 return android_priv_cmd(bss, "PNOFORCE 1"); 11309} 11310 11311 11312static int android_pno_stop(struct i802_bss *bss) 11313{ 11314 return android_priv_cmd(bss, "PNOFORCE 0"); 11315} 11316 11317#endif /* ANDROID */ 11318 11319 11320static int driver_nl80211_set_key(const char *ifname, void *priv, 11321 enum wpa_alg alg, const u8 *addr, 11322 int key_idx, int set_tx, 11323 const u8 *seq, size_t seq_len, 11324 const u8 *key, size_t key_len) 11325{ 11326 struct i802_bss *bss = priv; 11327 return wpa_driver_nl80211_set_key(ifname, bss, alg, addr, key_idx, 11328 set_tx, seq, seq_len, key, key_len); 11329} 11330 11331 11332static int driver_nl80211_scan2(void *priv, 11333 struct wpa_driver_scan_params *params) 11334{ 11335 struct i802_bss *bss = priv; 11336 return wpa_driver_nl80211_scan(bss, params); 11337} 11338 11339 11340static int driver_nl80211_deauthenticate(void *priv, const u8 *addr, 11341 int reason_code) 11342{ 11343 struct i802_bss *bss = priv; 11344 return wpa_driver_nl80211_deauthenticate(bss, addr, reason_code); 11345} 11346 11347 11348static int driver_nl80211_authenticate(void *priv, 11349 struct wpa_driver_auth_params *params) 11350{ 11351 struct i802_bss *bss = priv; 11352 return wpa_driver_nl80211_authenticate(bss, params); 11353} 11354 11355 11356static void driver_nl80211_deinit(void *priv) 11357{ 11358 struct i802_bss *bss = priv; 11359 wpa_driver_nl80211_deinit(bss); 11360} 11361 11362 11363static int driver_nl80211_if_remove(void *priv, enum wpa_driver_if_type type, 11364 const char *ifname) 11365{ 11366 struct i802_bss *bss = priv; 11367 return wpa_driver_nl80211_if_remove(bss, type, ifname); 11368} 11369 11370 11371static int driver_nl80211_send_mlme(void *priv, const u8 *data, 11372 size_t data_len, int noack) 11373{ 11374 struct i802_bss *bss = priv; 11375 return wpa_driver_nl80211_send_mlme(bss, data, data_len, noack, 11376 0, 0, 0, 0); 11377} 11378 11379 11380static int driver_nl80211_sta_remove(void *priv, const u8 *addr) 11381{ 11382 struct i802_bss *bss = priv; 11383 return wpa_driver_nl80211_sta_remove(bss, addr); 11384} 11385 11386 11387static int driver_nl80211_set_sta_vlan(void *priv, const u8 *addr, 11388 const char *ifname, int vlan_id) 11389{ 11390 struct i802_bss *bss = priv; 11391 return i802_set_sta_vlan(bss, addr, ifname, vlan_id); 11392} 11393 11394 11395static int driver_nl80211_read_sta_data(void *priv, 11396 struct hostap_sta_driver_data *data, 11397 const u8 *addr) 11398{ 11399 struct i802_bss *bss = priv; 11400 return i802_read_sta_data(bss, data, addr); 11401} 11402 11403 11404static int driver_nl80211_send_action(void *priv, unsigned int freq, 11405 unsigned int wait_time, 11406 const u8 *dst, const u8 *src, 11407 const u8 *bssid, 11408 const u8 *data, size_t data_len, 11409 int no_cck) 11410{ 11411 struct i802_bss *bss = priv; 11412 return wpa_driver_nl80211_send_action(bss, freq, wait_time, dst, src, 11413 bssid, data, data_len, no_cck); 11414} 11415 11416 11417static int driver_nl80211_probe_req_report(void *priv, int report) 11418{ 11419 struct i802_bss *bss = priv; 11420 return wpa_driver_nl80211_probe_req_report(bss, report); 11421} 11422 11423 11424static int wpa_driver_nl80211_update_ft_ies(void *priv, const u8 *md, 11425 const u8 *ies, size_t ies_len) 11426{ 11427 int ret; 11428 struct nl_msg *msg; 11429 struct i802_bss *bss = priv; 11430 struct wpa_driver_nl80211_data *drv = bss->drv; 11431 u16 mdid = WPA_GET_LE16(md); 11432 11433 msg = nlmsg_alloc(); 11434 if (!msg) 11435 return -ENOMEM; 11436 11437 wpa_printf(MSG_DEBUG, "nl80211: Updating FT IEs"); 11438 nl80211_cmd(drv, msg, 0, NL80211_CMD_UPDATE_FT_IES); 11439 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11440 NLA_PUT(msg, NL80211_ATTR_IE, ies_len, ies); 11441 NLA_PUT_U16(msg, NL80211_ATTR_MDID, mdid); 11442 11443 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 11444 if (ret) { 11445 wpa_printf(MSG_DEBUG, "nl80211: update_ft_ies failed " 11446 "err=%d (%s)", ret, strerror(-ret)); 11447 } 11448 11449 return ret; 11450 11451nla_put_failure: 11452 nlmsg_free(msg); 11453 return -ENOBUFS; 11454} 11455 11456 11457const u8 * wpa_driver_nl80211_get_macaddr(void *priv) 11458{ 11459 struct i802_bss *bss = priv; 11460 struct wpa_driver_nl80211_data *drv = bss->drv; 11461 11462 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) 11463 return NULL; 11464 11465 return bss->addr; 11466} 11467 11468 11469static const char * scan_state_str(enum scan_states scan_state) 11470{ 11471 switch (scan_state) { 11472 case NO_SCAN: 11473 return "NO_SCAN"; 11474 case SCAN_REQUESTED: 11475 return "SCAN_REQUESTED"; 11476 case SCAN_STARTED: 11477 return "SCAN_STARTED"; 11478 case SCAN_COMPLETED: 11479 return "SCAN_COMPLETED"; 11480 case SCAN_ABORTED: 11481 return "SCAN_ABORTED"; 11482 case SCHED_SCAN_STARTED: 11483 return "SCHED_SCAN_STARTED"; 11484 case SCHED_SCAN_STOPPED: 11485 return "SCHED_SCAN_STOPPED"; 11486 case SCHED_SCAN_RESULTS: 11487 return "SCHED_SCAN_RESULTS"; 11488 } 11489 11490 return "??"; 11491} 11492 11493 11494static int wpa_driver_nl80211_status(void *priv, char *buf, size_t buflen) 11495{ 11496 struct i802_bss *bss = priv; 11497 struct wpa_driver_nl80211_data *drv = bss->drv; 11498 int res; 11499 char *pos, *end; 11500 11501 pos = buf; 11502 end = buf + buflen; 11503 11504 res = os_snprintf(pos, end - pos, 11505 "ifindex=%d\n" 11506 "ifname=%s\n" 11507 "brname=%s\n" 11508 "addr=" MACSTR "\n" 11509 "freq=%d\n" 11510 "%s%s%s%s%s", 11511 bss->ifindex, 11512 bss->ifname, 11513 bss->brname, 11514 MAC2STR(bss->addr), 11515 bss->freq, 11516 bss->beacon_set ? "beacon_set=1\n" : "", 11517 bss->added_if_into_bridge ? 11518 "added_if_into_bridge=1\n" : "", 11519 bss->added_bridge ? "added_bridge=1\n" : "", 11520 bss->in_deinit ? "in_deinit=1\n" : "", 11521 bss->if_dynamic ? "if_dynamic=1\n" : ""); 11522 if (res < 0 || res >= end - pos) 11523 return pos - buf; 11524 pos += res; 11525 11526 if (bss->wdev_id_set) { 11527 res = os_snprintf(pos, end - pos, "wdev_id=%llu\n", 11528 (unsigned long long) bss->wdev_id); 11529 if (res < 0 || res >= end - pos) 11530 return pos - buf; 11531 pos += res; 11532 } 11533 11534 res = os_snprintf(pos, end - pos, 11535 "phyname=%s\n" 11536 "drv_ifindex=%d\n" 11537 "operstate=%d\n" 11538 "scan_state=%s\n" 11539 "auth_bssid=" MACSTR "\n" 11540 "auth_attempt_bssid=" MACSTR "\n" 11541 "bssid=" MACSTR "\n" 11542 "prev_bssid=" MACSTR "\n" 11543 "associated=%d\n" 11544 "assoc_freq=%u\n" 11545 "monitor_sock=%d\n" 11546 "monitor_ifidx=%d\n" 11547 "monitor_refcount=%d\n" 11548 "last_mgmt_freq=%u\n" 11549 "eapol_tx_sock=%d\n" 11550 "%s%s%s%s%s%s%s%s%s%s%s%s%s", 11551 drv->phyname, 11552 drv->ifindex, 11553 drv->operstate, 11554 scan_state_str(drv->scan_state), 11555 MAC2STR(drv->auth_bssid), 11556 MAC2STR(drv->auth_attempt_bssid), 11557 MAC2STR(drv->bssid), 11558 MAC2STR(drv->prev_bssid), 11559 drv->associated, 11560 drv->assoc_freq, 11561 drv->monitor_sock, 11562 drv->monitor_ifidx, 11563 drv->monitor_refcount, 11564 drv->last_mgmt_freq, 11565 drv->eapol_tx_sock, 11566 drv->ignore_if_down_event ? 11567 "ignore_if_down_event=1\n" : "", 11568 drv->scan_complete_events ? 11569 "scan_complete_events=1\n" : "", 11570 drv->disabled_11b_rates ? 11571 "disabled_11b_rates=1\n" : "", 11572 drv->pending_remain_on_chan ? 11573 "pending_remain_on_chan=1\n" : "", 11574 drv->in_interface_list ? "in_interface_list=1\n" : "", 11575 drv->device_ap_sme ? "device_ap_sme=1\n" : "", 11576 drv->poll_command_supported ? 11577 "poll_command_supported=1\n" : "", 11578 drv->data_tx_status ? "data_tx_status=1\n" : "", 11579 drv->scan_for_auth ? "scan_for_auth=1\n" : "", 11580 drv->retry_auth ? "retry_auth=1\n" : "", 11581 drv->use_monitor ? "use_monitor=1\n" : "", 11582 drv->ignore_next_local_disconnect ? 11583 "ignore_next_local_disconnect=1\n" : "", 11584 drv->allow_p2p_device ? "allow_p2p_device=1\n" : ""); 11585 if (res < 0 || res >= end - pos) 11586 return pos - buf; 11587 pos += res; 11588 11589 if (drv->has_capability) { 11590 res = os_snprintf(pos, end - pos, 11591 "capa.key_mgmt=0x%x\n" 11592 "capa.enc=0x%x\n" 11593 "capa.auth=0x%x\n" 11594 "capa.flags=0x%x\n" 11595 "capa.max_scan_ssids=%d\n" 11596 "capa.max_sched_scan_ssids=%d\n" 11597 "capa.sched_scan_supported=%d\n" 11598 "capa.max_match_sets=%d\n" 11599 "capa.max_remain_on_chan=%u\n" 11600 "capa.max_stations=%u\n" 11601 "capa.probe_resp_offloads=0x%x\n" 11602 "capa.max_acl_mac_addrs=%u\n" 11603 "capa.num_multichan_concurrent=%u\n", 11604 drv->capa.key_mgmt, 11605 drv->capa.enc, 11606 drv->capa.auth, 11607 drv->capa.flags, 11608 drv->capa.max_scan_ssids, 11609 drv->capa.max_sched_scan_ssids, 11610 drv->capa.sched_scan_supported, 11611 drv->capa.max_match_sets, 11612 drv->capa.max_remain_on_chan, 11613 drv->capa.max_stations, 11614 drv->capa.probe_resp_offloads, 11615 drv->capa.max_acl_mac_addrs, 11616 drv->capa.num_multichan_concurrent); 11617 if (res < 0 || res >= end - pos) 11618 return pos - buf; 11619 pos += res; 11620 } 11621 11622 return pos - buf; 11623} 11624 11625 11626static int set_beacon_data(struct nl_msg *msg, struct beacon_data *settings) 11627{ 11628 if (settings->head) 11629 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, 11630 settings->head_len, settings->head); 11631 11632 if (settings->tail) 11633 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, 11634 settings->tail_len, settings->tail); 11635 11636 if (settings->beacon_ies) 11637 NLA_PUT(msg, NL80211_ATTR_IE, 11638 settings->beacon_ies_len, settings->beacon_ies); 11639 11640 if (settings->proberesp_ies) 11641 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, 11642 settings->proberesp_ies_len, settings->proberesp_ies); 11643 11644 if (settings->assocresp_ies) 11645 NLA_PUT(msg, 11646 NL80211_ATTR_IE_ASSOC_RESP, 11647 settings->assocresp_ies_len, settings->assocresp_ies); 11648 11649 if (settings->probe_resp) 11650 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, 11651 settings->probe_resp_len, settings->probe_resp); 11652 11653 return 0; 11654 11655nla_put_failure: 11656 return -ENOBUFS; 11657} 11658 11659 11660static int nl80211_switch_channel(void *priv, struct csa_settings *settings) 11661{ 11662 struct nl_msg *msg; 11663 struct i802_bss *bss = priv; 11664 struct wpa_driver_nl80211_data *drv = bss->drv; 11665 struct nlattr *beacon_csa; 11666 int ret = -ENOBUFS; 11667 11668 wpa_printf(MSG_DEBUG, "nl80211: Channel switch request (cs_count=%u block_tx=%u freq=%d width=%d cf1=%d cf2=%d)", 11669 settings->cs_count, settings->block_tx, 11670 settings->freq_params.freq, settings->freq_params.bandwidth, 11671 settings->freq_params.center_freq1, 11672 settings->freq_params.center_freq2); 11673 11674 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_AP_CSA)) { 11675 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support channel switch command"); 11676 return -EOPNOTSUPP; 11677 } 11678 11679 if ((drv->nlmode != NL80211_IFTYPE_AP) && 11680 (drv->nlmode != NL80211_IFTYPE_P2P_GO)) 11681 return -EOPNOTSUPP; 11682 11683 /* check settings validity */ 11684 if (!settings->beacon_csa.tail || 11685 ((settings->beacon_csa.tail_len <= 11686 settings->counter_offset_beacon) || 11687 (settings->beacon_csa.tail[settings->counter_offset_beacon] != 11688 settings->cs_count))) 11689 return -EINVAL; 11690 11691 if (settings->beacon_csa.probe_resp && 11692 ((settings->beacon_csa.probe_resp_len <= 11693 settings->counter_offset_presp) || 11694 (settings->beacon_csa.probe_resp[settings->counter_offset_presp] != 11695 settings->cs_count))) 11696 return -EINVAL; 11697 11698 msg = nlmsg_alloc(); 11699 if (!msg) 11700 return -ENOMEM; 11701 11702 nl80211_cmd(drv, msg, 0, NL80211_CMD_CHANNEL_SWITCH); 11703 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11704 NLA_PUT_U32(msg, NL80211_ATTR_CH_SWITCH_COUNT, settings->cs_count); 11705 ret = nl80211_put_freq_params(msg, &settings->freq_params); 11706 if (ret) 11707 goto error; 11708 11709 if (settings->block_tx) 11710 NLA_PUT_FLAG(msg, NL80211_ATTR_CH_SWITCH_BLOCK_TX); 11711 11712 /* beacon_after params */ 11713 ret = set_beacon_data(msg, &settings->beacon_after); 11714 if (ret) 11715 goto error; 11716 11717 /* beacon_csa params */ 11718 beacon_csa = nla_nest_start(msg, NL80211_ATTR_CSA_IES); 11719 if (!beacon_csa) 11720 goto nla_put_failure; 11721 11722 ret = set_beacon_data(msg, &settings->beacon_csa); 11723 if (ret) 11724 goto error; 11725 11726 NLA_PUT_U16(msg, NL80211_ATTR_CSA_C_OFF_BEACON, 11727 settings->counter_offset_beacon); 11728 11729 if (settings->beacon_csa.probe_resp) 11730 NLA_PUT_U16(msg, NL80211_ATTR_CSA_C_OFF_PRESP, 11731 settings->counter_offset_presp); 11732 11733 nla_nest_end(msg, beacon_csa); 11734 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 11735 if (ret) { 11736 wpa_printf(MSG_DEBUG, "nl80211: switch_channel failed err=%d (%s)", 11737 ret, strerror(-ret)); 11738 } 11739 return ret; 11740 11741nla_put_failure: 11742 ret = -ENOBUFS; 11743error: 11744 nlmsg_free(msg); 11745 wpa_printf(MSG_DEBUG, "nl80211: Could not build channel switch request"); 11746 return ret; 11747} 11748 11749 11750#ifdef CONFIG_TESTING_OPTIONS 11751static int cmd_reply_handler(struct nl_msg *msg, void *arg) 11752{ 11753 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 11754 struct wpabuf *buf = arg; 11755 11756 if (!buf) 11757 return NL_SKIP; 11758 11759 if ((size_t) genlmsg_attrlen(gnlh, 0) > wpabuf_tailroom(buf)) { 11760 wpa_printf(MSG_INFO, "nl80211: insufficient buffer space for reply"); 11761 return NL_SKIP; 11762 } 11763 11764 wpabuf_put_data(buf, genlmsg_attrdata(gnlh, 0), 11765 genlmsg_attrlen(gnlh, 0)); 11766 11767 return NL_SKIP; 11768} 11769#endif /* CONFIG_TESTING_OPTIONS */ 11770 11771 11772static int vendor_reply_handler(struct nl_msg *msg, void *arg) 11773{ 11774 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 11775 struct nlattr *nl_vendor_reply, *nl; 11776 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 11777 struct wpabuf *buf = arg; 11778 int rem; 11779 11780 if (!buf) 11781 return NL_SKIP; 11782 11783 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 11784 genlmsg_attrlen(gnlh, 0), NULL); 11785 nl_vendor_reply = tb[NL80211_ATTR_VENDOR_DATA]; 11786 11787 if (!nl_vendor_reply) 11788 return NL_SKIP; 11789 11790 if ((size_t) nla_len(nl_vendor_reply) > wpabuf_tailroom(buf)) { 11791 wpa_printf(MSG_INFO, "nl80211: Vendor command: insufficient buffer space for reply"); 11792 return NL_SKIP; 11793 } 11794 11795 nla_for_each_nested(nl, nl_vendor_reply, rem) { 11796 wpabuf_put_data(buf, nla_data(nl), nla_len(nl)); 11797 } 11798 11799 return NL_SKIP; 11800} 11801 11802 11803static int nl80211_vendor_cmd(void *priv, unsigned int vendor_id, 11804 unsigned int subcmd, const u8 *data, 11805 size_t data_len, struct wpabuf *buf) 11806{ 11807 struct i802_bss *bss = priv; 11808 struct wpa_driver_nl80211_data *drv = bss->drv; 11809 struct nl_msg *msg; 11810 int ret; 11811 11812 msg = nlmsg_alloc(); 11813 if (!msg) 11814 return -ENOMEM; 11815 11816#ifdef CONFIG_TESTING_OPTIONS 11817 if (vendor_id == 0xffffffff) { 11818 nl80211_cmd(drv, msg, 0, subcmd); 11819 if (nlmsg_append(msg, (void *) data, data_len, NLMSG_ALIGNTO) < 11820 0) 11821 goto nla_put_failure; 11822 ret = send_and_recv_msgs(drv, msg, cmd_reply_handler, buf); 11823 if (ret) 11824 wpa_printf(MSG_DEBUG, "nl80211: command failed err=%d", 11825 ret); 11826 return ret; 11827 } 11828#endif /* CONFIG_TESTING_OPTIONS */ 11829 11830 nl80211_cmd(drv, msg, 0, NL80211_CMD_VENDOR); 11831 if (nl80211_set_iface_id(msg, bss) < 0) 11832 goto nla_put_failure; 11833 NLA_PUT_U32(msg, NL80211_ATTR_VENDOR_ID, vendor_id); 11834 NLA_PUT_U32(msg, NL80211_ATTR_VENDOR_SUBCMD, subcmd); 11835 if (data) 11836 NLA_PUT(msg, NL80211_ATTR_VENDOR_DATA, data_len, data); 11837 11838 ret = send_and_recv_msgs(drv, msg, vendor_reply_handler, buf); 11839 if (ret) 11840 wpa_printf(MSG_DEBUG, "nl80211: vendor command failed err=%d", 11841 ret); 11842 return ret; 11843 11844nla_put_failure: 11845 nlmsg_free(msg); 11846 return -ENOBUFS; 11847} 11848 11849 11850static int nl80211_set_qos_map(void *priv, const u8 *qos_map_set, 11851 u8 qos_map_set_len) 11852{ 11853 struct i802_bss *bss = priv; 11854 struct wpa_driver_nl80211_data *drv = bss->drv; 11855 struct nl_msg *msg; 11856 int ret; 11857 11858 msg = nlmsg_alloc(); 11859 if (!msg) 11860 return -ENOMEM; 11861 11862 wpa_hexdump(MSG_DEBUG, "nl80211: Setting QoS Map", 11863 qos_map_set, qos_map_set_len); 11864 11865 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_QOS_MAP); 11866 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11867 NLA_PUT(msg, NL80211_ATTR_QOS_MAP, qos_map_set_len, qos_map_set); 11868 11869 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 11870 if (ret) 11871 wpa_printf(MSG_DEBUG, "nl80211: Setting QoS Map failed"); 11872 11873 return ret; 11874 11875nla_put_failure: 11876 nlmsg_free(msg); 11877 return -ENOBUFS; 11878} 11879 11880 11881const struct wpa_driver_ops wpa_driver_nl80211_ops = { 11882 .name = "nl80211", 11883 .desc = "Linux nl80211/cfg80211", 11884 .get_bssid = wpa_driver_nl80211_get_bssid, 11885 .get_ssid = wpa_driver_nl80211_get_ssid, 11886 .set_key = driver_nl80211_set_key, 11887 .scan2 = driver_nl80211_scan2, 11888 .sched_scan = wpa_driver_nl80211_sched_scan, 11889 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan, 11890 .get_scan_results2 = wpa_driver_nl80211_get_scan_results, 11891 .deauthenticate = driver_nl80211_deauthenticate, 11892 .authenticate = driver_nl80211_authenticate, 11893 .associate = wpa_driver_nl80211_associate, 11894 .global_init = nl80211_global_init, 11895 .global_deinit = nl80211_global_deinit, 11896 .init2 = wpa_driver_nl80211_init, 11897 .deinit = driver_nl80211_deinit, 11898 .get_capa = wpa_driver_nl80211_get_capa, 11899 .set_operstate = wpa_driver_nl80211_set_operstate, 11900 .set_supp_port = wpa_driver_nl80211_set_supp_port, 11901 .set_country = wpa_driver_nl80211_set_country, 11902 .get_country = wpa_driver_nl80211_get_country, 11903 .set_ap = wpa_driver_nl80211_set_ap, 11904 .set_acl = wpa_driver_nl80211_set_acl, 11905 .if_add = wpa_driver_nl80211_if_add, 11906 .if_remove = driver_nl80211_if_remove, 11907 .send_mlme = driver_nl80211_send_mlme, 11908 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data, 11909 .sta_add = wpa_driver_nl80211_sta_add, 11910 .sta_remove = driver_nl80211_sta_remove, 11911 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol, 11912 .sta_set_flags = wpa_driver_nl80211_sta_set_flags, 11913 .hapd_init = i802_init, 11914 .hapd_deinit = i802_deinit, 11915 .set_wds_sta = i802_set_wds_sta, 11916 .get_seqnum = i802_get_seqnum, 11917 .flush = i802_flush, 11918 .get_inact_sec = i802_get_inact_sec, 11919 .sta_clear_stats = i802_sta_clear_stats, 11920 .set_rts = i802_set_rts, 11921 .set_frag = i802_set_frag, 11922 .set_tx_queue_params = i802_set_tx_queue_params, 11923 .set_sta_vlan = driver_nl80211_set_sta_vlan, 11924 .sta_deauth = i802_sta_deauth, 11925 .sta_disassoc = i802_sta_disassoc, 11926 .read_sta_data = driver_nl80211_read_sta_data, 11927 .set_freq = i802_set_freq, 11928 .send_action = driver_nl80211_send_action, 11929 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait, 11930 .remain_on_channel = wpa_driver_nl80211_remain_on_channel, 11931 .cancel_remain_on_channel = 11932 wpa_driver_nl80211_cancel_remain_on_channel, 11933 .probe_req_report = driver_nl80211_probe_req_report, 11934 .deinit_ap = wpa_driver_nl80211_deinit_ap, 11935 .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli, 11936 .resume = wpa_driver_nl80211_resume, 11937 .send_ft_action = nl80211_send_ft_action, 11938 .signal_monitor = nl80211_signal_monitor, 11939 .signal_poll = nl80211_signal_poll, 11940 .send_frame = nl80211_send_frame, 11941 .shared_freq = wpa_driver_nl80211_shared_freq, 11942 .set_param = nl80211_set_param, 11943 .get_radio_name = nl80211_get_radio_name, 11944 .add_pmkid = nl80211_add_pmkid, 11945 .remove_pmkid = nl80211_remove_pmkid, 11946 .flush_pmkid = nl80211_flush_pmkid, 11947 .set_rekey_info = nl80211_set_rekey_info, 11948 .poll_client = nl80211_poll_client, 11949 .set_p2p_powersave = nl80211_set_p2p_powersave, 11950 .start_dfs_cac = nl80211_start_radar_detection, 11951 .stop_ap = wpa_driver_nl80211_stop_ap, 11952#ifdef CONFIG_TDLS 11953 .send_tdls_mgmt = nl80211_send_tdls_mgmt, 11954 .tdls_oper = nl80211_tdls_oper, 11955#endif /* CONFIG_TDLS */ 11956 .update_ft_ies = wpa_driver_nl80211_update_ft_ies, 11957 .get_mac_addr = wpa_driver_nl80211_get_macaddr, 11958 .get_survey = wpa_driver_nl80211_get_survey, 11959 .status = wpa_driver_nl80211_status, 11960 .switch_channel = nl80211_switch_channel, 11961#ifdef ANDROID_P2P 11962 .set_noa = wpa_driver_set_p2p_noa, 11963 .get_noa = wpa_driver_get_p2p_noa, 11964 .set_ap_wps_ie = wpa_driver_set_ap_wps_p2p_ie, 11965#endif /* ANDROID_P2P */ 11966#ifdef ANDROID 11967 .driver_cmd = wpa_driver_nl80211_driver_cmd, 11968#endif /* ANDROID */ 11969 .vendor_cmd = nl80211_vendor_cmd, 11970 .set_qos_map = nl80211_set_qos_map, 11971}; 11972