driver_nl80211.c revision 61593f02176862f4880ddefcb1f54cb5f5d9f043
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 ignore_next_local_deauth:1; 301 unsigned int allow_p2p_device:1; 302 unsigned int hostapd:1; 303 unsigned int start_mode_ap:1; 304 unsigned int start_iface_up:1; 305 unsigned int test_use_roc_tx:1; 306 unsigned int ignore_deauth_event:1; 307 unsigned int dfs_vendor_cmd_avail:1; 308 309 u64 remain_on_chan_cookie; 310 u64 send_action_cookie; 311 312 unsigned int last_mgmt_freq; 313 314 struct wpa_driver_scan_filter *filter_ssids; 315 size_t num_filter_ssids; 316 317 struct i802_bss *first_bss; 318 319 int eapol_tx_sock; 320 321 int eapol_sock; /* socket for EAPOL frames */ 322 323 int default_if_indices[16]; 324 int *if_indices; 325 int num_if_indices; 326 327 /* From failed authentication command */ 328 int auth_freq; 329 u8 auth_bssid_[ETH_ALEN]; 330 u8 auth_ssid[32]; 331 size_t auth_ssid_len; 332 int auth_alg; 333 u8 *auth_ie; 334 size_t auth_ie_len; 335 u8 auth_wep_key[4][16]; 336 size_t auth_wep_key_len[4]; 337 int auth_wep_tx_keyidx; 338 int auth_local_state_change; 339 int auth_p2p; 340}; 341 342 343static void wpa_driver_nl80211_deinit(struct i802_bss *bss); 344static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, 345 void *timeout_ctx); 346static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 347 enum nl80211_iftype nlmode); 348static int 349wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv, 350 const u8 *set_addr, int first); 351static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 352 const u8 *addr, int cmd, u16 reason_code, 353 int local_state_change); 354static void nl80211_remove_monitor_interface( 355 struct wpa_driver_nl80211_data *drv); 356static int nl80211_send_frame_cmd(struct i802_bss *bss, 357 unsigned int freq, unsigned int wait, 358 const u8 *buf, size_t buf_len, u64 *cookie, 359 int no_cck, int no_ack, int offchanok); 360static int nl80211_register_frame(struct i802_bss *bss, 361 struct nl_handle *hl_handle, 362 u16 type, const u8 *match, size_t match_len); 363static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, 364 int report); 365#ifdef ANDROID 366static int android_pno_start(struct i802_bss *bss, 367 struct wpa_driver_scan_params *params); 368static int android_pno_stop(struct i802_bss *bss); 369extern int wpa_driver_nl80211_driver_cmd(void *priv, char *cmd, char *buf, 370 size_t buf_len); 371#endif /* ANDROID */ 372#ifdef ANDROID_P2P 373int wpa_driver_set_p2p_noa(void *priv, u8 count, int start, int duration); 374int wpa_driver_get_p2p_noa(void *priv, u8 *buf, size_t len); 375int wpa_driver_set_p2p_ps(void *priv, int legacy_ps, int opp_ps, int ctwindow); 376int wpa_driver_set_ap_wps_p2p_ie(void *priv, const struct wpabuf *beacon, 377 const struct wpabuf *proberesp, 378 const struct wpabuf *assocresp); 379#endif /* ANDROID_P2P */ 380 381static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 382static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 383static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 384static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 385 enum wpa_driver_if_type type, 386 const char *ifname); 387 388static int wpa_driver_nl80211_set_freq(struct i802_bss *bss, 389 struct hostapd_freq_params *freq); 390static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 391 int ifindex, int disabled); 392 393static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv); 394static int wpa_driver_nl80211_authenticate_retry( 395 struct wpa_driver_nl80211_data *drv); 396 397static int i802_set_iface_flags(struct i802_bss *bss, int up); 398 399 400static const char * nl80211_command_to_string(enum nl80211_commands cmd) 401{ 402#define C2S(x) case x: return #x; 403 switch (cmd) { 404 C2S(NL80211_CMD_UNSPEC) 405 C2S(NL80211_CMD_GET_WIPHY) 406 C2S(NL80211_CMD_SET_WIPHY) 407 C2S(NL80211_CMD_NEW_WIPHY) 408 C2S(NL80211_CMD_DEL_WIPHY) 409 C2S(NL80211_CMD_GET_INTERFACE) 410 C2S(NL80211_CMD_SET_INTERFACE) 411 C2S(NL80211_CMD_NEW_INTERFACE) 412 C2S(NL80211_CMD_DEL_INTERFACE) 413 C2S(NL80211_CMD_GET_KEY) 414 C2S(NL80211_CMD_SET_KEY) 415 C2S(NL80211_CMD_NEW_KEY) 416 C2S(NL80211_CMD_DEL_KEY) 417 C2S(NL80211_CMD_GET_BEACON) 418 C2S(NL80211_CMD_SET_BEACON) 419 C2S(NL80211_CMD_START_AP) 420 C2S(NL80211_CMD_STOP_AP) 421 C2S(NL80211_CMD_GET_STATION) 422 C2S(NL80211_CMD_SET_STATION) 423 C2S(NL80211_CMD_NEW_STATION) 424 C2S(NL80211_CMD_DEL_STATION) 425 C2S(NL80211_CMD_GET_MPATH) 426 C2S(NL80211_CMD_SET_MPATH) 427 C2S(NL80211_CMD_NEW_MPATH) 428 C2S(NL80211_CMD_DEL_MPATH) 429 C2S(NL80211_CMD_SET_BSS) 430 C2S(NL80211_CMD_SET_REG) 431 C2S(NL80211_CMD_REQ_SET_REG) 432 C2S(NL80211_CMD_GET_MESH_CONFIG) 433 C2S(NL80211_CMD_SET_MESH_CONFIG) 434 C2S(NL80211_CMD_SET_MGMT_EXTRA_IE) 435 C2S(NL80211_CMD_GET_REG) 436 C2S(NL80211_CMD_GET_SCAN) 437 C2S(NL80211_CMD_TRIGGER_SCAN) 438 C2S(NL80211_CMD_NEW_SCAN_RESULTS) 439 C2S(NL80211_CMD_SCAN_ABORTED) 440 C2S(NL80211_CMD_REG_CHANGE) 441 C2S(NL80211_CMD_AUTHENTICATE) 442 C2S(NL80211_CMD_ASSOCIATE) 443 C2S(NL80211_CMD_DEAUTHENTICATE) 444 C2S(NL80211_CMD_DISASSOCIATE) 445 C2S(NL80211_CMD_MICHAEL_MIC_FAILURE) 446 C2S(NL80211_CMD_REG_BEACON_HINT) 447 C2S(NL80211_CMD_JOIN_IBSS) 448 C2S(NL80211_CMD_LEAVE_IBSS) 449 C2S(NL80211_CMD_TESTMODE) 450 C2S(NL80211_CMD_CONNECT) 451 C2S(NL80211_CMD_ROAM) 452 C2S(NL80211_CMD_DISCONNECT) 453 C2S(NL80211_CMD_SET_WIPHY_NETNS) 454 C2S(NL80211_CMD_GET_SURVEY) 455 C2S(NL80211_CMD_NEW_SURVEY_RESULTS) 456 C2S(NL80211_CMD_SET_PMKSA) 457 C2S(NL80211_CMD_DEL_PMKSA) 458 C2S(NL80211_CMD_FLUSH_PMKSA) 459 C2S(NL80211_CMD_REMAIN_ON_CHANNEL) 460 C2S(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL) 461 C2S(NL80211_CMD_SET_TX_BITRATE_MASK) 462 C2S(NL80211_CMD_REGISTER_FRAME) 463 C2S(NL80211_CMD_FRAME) 464 C2S(NL80211_CMD_FRAME_TX_STATUS) 465 C2S(NL80211_CMD_SET_POWER_SAVE) 466 C2S(NL80211_CMD_GET_POWER_SAVE) 467 C2S(NL80211_CMD_SET_CQM) 468 C2S(NL80211_CMD_NOTIFY_CQM) 469 C2S(NL80211_CMD_SET_CHANNEL) 470 C2S(NL80211_CMD_SET_WDS_PEER) 471 C2S(NL80211_CMD_FRAME_WAIT_CANCEL) 472 C2S(NL80211_CMD_JOIN_MESH) 473 C2S(NL80211_CMD_LEAVE_MESH) 474 C2S(NL80211_CMD_UNPROT_DEAUTHENTICATE) 475 C2S(NL80211_CMD_UNPROT_DISASSOCIATE) 476 C2S(NL80211_CMD_NEW_PEER_CANDIDATE) 477 C2S(NL80211_CMD_GET_WOWLAN) 478 C2S(NL80211_CMD_SET_WOWLAN) 479 C2S(NL80211_CMD_START_SCHED_SCAN) 480 C2S(NL80211_CMD_STOP_SCHED_SCAN) 481 C2S(NL80211_CMD_SCHED_SCAN_RESULTS) 482 C2S(NL80211_CMD_SCHED_SCAN_STOPPED) 483 C2S(NL80211_CMD_SET_REKEY_OFFLOAD) 484 C2S(NL80211_CMD_PMKSA_CANDIDATE) 485 C2S(NL80211_CMD_TDLS_OPER) 486 C2S(NL80211_CMD_TDLS_MGMT) 487 C2S(NL80211_CMD_UNEXPECTED_FRAME) 488 C2S(NL80211_CMD_PROBE_CLIENT) 489 C2S(NL80211_CMD_REGISTER_BEACONS) 490 C2S(NL80211_CMD_UNEXPECTED_4ADDR_FRAME) 491 C2S(NL80211_CMD_SET_NOACK_MAP) 492 C2S(NL80211_CMD_CH_SWITCH_NOTIFY) 493 C2S(NL80211_CMD_START_P2P_DEVICE) 494 C2S(NL80211_CMD_STOP_P2P_DEVICE) 495 C2S(NL80211_CMD_CONN_FAILED) 496 C2S(NL80211_CMD_SET_MCAST_RATE) 497 C2S(NL80211_CMD_SET_MAC_ACL) 498 C2S(NL80211_CMD_RADAR_DETECT) 499 C2S(NL80211_CMD_GET_PROTOCOL_FEATURES) 500 C2S(NL80211_CMD_UPDATE_FT_IES) 501 C2S(NL80211_CMD_FT_EVENT) 502 C2S(NL80211_CMD_CRIT_PROTOCOL_START) 503 C2S(NL80211_CMD_CRIT_PROTOCOL_STOP) 504 C2S(NL80211_CMD_GET_COALESCE) 505 C2S(NL80211_CMD_SET_COALESCE) 506 C2S(NL80211_CMD_CHANNEL_SWITCH) 507 C2S(NL80211_CMD_VENDOR) 508 C2S(NL80211_CMD_SET_QOS_MAP) 509 default: 510 return "NL80211_CMD_UNKNOWN"; 511 } 512#undef C2S 513} 514 515 516/* Converts nl80211_chan_width to a common format */ 517static enum chan_width convert2width(int width) 518{ 519 switch (width) { 520 case NL80211_CHAN_WIDTH_20_NOHT: 521 return CHAN_WIDTH_20_NOHT; 522 case NL80211_CHAN_WIDTH_20: 523 return CHAN_WIDTH_20; 524 case NL80211_CHAN_WIDTH_40: 525 return CHAN_WIDTH_40; 526 case NL80211_CHAN_WIDTH_80: 527 return CHAN_WIDTH_80; 528 case NL80211_CHAN_WIDTH_80P80: 529 return CHAN_WIDTH_80P80; 530 case NL80211_CHAN_WIDTH_160: 531 return CHAN_WIDTH_160; 532 } 533 return CHAN_WIDTH_UNKNOWN; 534} 535 536 537static int is_ap_interface(enum nl80211_iftype nlmode) 538{ 539 return (nlmode == NL80211_IFTYPE_AP || 540 nlmode == NL80211_IFTYPE_P2P_GO); 541} 542 543 544static int is_sta_interface(enum nl80211_iftype nlmode) 545{ 546 return (nlmode == NL80211_IFTYPE_STATION || 547 nlmode == NL80211_IFTYPE_P2P_CLIENT); 548} 549 550 551static int is_p2p_net_interface(enum nl80211_iftype nlmode) 552{ 553 return (nlmode == NL80211_IFTYPE_P2P_CLIENT || 554 nlmode == NL80211_IFTYPE_P2P_GO); 555} 556 557 558static void nl80211_mark_disconnected(struct wpa_driver_nl80211_data *drv) 559{ 560 if (drv->associated) 561 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); 562 drv->associated = 0; 563 os_memset(drv->bssid, 0, ETH_ALEN); 564} 565 566 567struct nl80211_bss_info_arg { 568 struct wpa_driver_nl80211_data *drv; 569 struct wpa_scan_results *res; 570 unsigned int assoc_freq; 571 u8 assoc_bssid[ETH_ALEN]; 572}; 573 574static int bss_info_handler(struct nl_msg *msg, void *arg); 575 576 577/* nl80211 code */ 578static int ack_handler(struct nl_msg *msg, void *arg) 579{ 580 int *err = arg; 581 *err = 0; 582 return NL_STOP; 583} 584 585static int finish_handler(struct nl_msg *msg, void *arg) 586{ 587 int *ret = arg; 588 *ret = 0; 589 return NL_SKIP; 590} 591 592static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err, 593 void *arg) 594{ 595 int *ret = arg; 596 *ret = err->error; 597 return NL_SKIP; 598} 599 600 601static int no_seq_check(struct nl_msg *msg, void *arg) 602{ 603 return NL_OK; 604} 605 606 607static int send_and_recv(struct nl80211_global *global, 608 struct nl_handle *nl_handle, struct nl_msg *msg, 609 int (*valid_handler)(struct nl_msg *, void *), 610 void *valid_data) 611{ 612 struct nl_cb *cb; 613 int err = -ENOMEM; 614 615 cb = nl_cb_clone(global->nl_cb); 616 if (!cb) 617 goto out; 618 619 err = nl_send_auto_complete(nl_handle, msg); 620 if (err < 0) 621 goto out; 622 623 err = 1; 624 625 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err); 626 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err); 627 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err); 628 629 if (valid_handler) 630 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, 631 valid_handler, valid_data); 632 633 while (err > 0) { 634 int res = nl_recvmsgs(nl_handle, cb); 635 if (res) { 636 wpa_printf(MSG_INFO, 637 "nl80211: %s->nl_recvmsgs failed: %d", 638 __func__, res); 639 } 640 } 641 out: 642 nl_cb_put(cb); 643 nlmsg_free(msg); 644 return err; 645} 646 647 648static int send_and_recv_msgs_global(struct nl80211_global *global, 649 struct nl_msg *msg, 650 int (*valid_handler)(struct nl_msg *, void *), 651 void *valid_data) 652{ 653 return send_and_recv(global, global->nl, msg, valid_handler, 654 valid_data); 655} 656 657 658static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv, 659 struct nl_msg *msg, 660 int (*valid_handler)(struct nl_msg *, void *), 661 void *valid_data) 662{ 663 return send_and_recv(drv->global, drv->global->nl, msg, 664 valid_handler, valid_data); 665} 666 667 668struct family_data { 669 const char *group; 670 int id; 671}; 672 673 674static int nl80211_set_iface_id(struct nl_msg *msg, struct i802_bss *bss) 675{ 676 if (bss->wdev_id_set) 677 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 678 else 679 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 680 return 0; 681 682nla_put_failure: 683 return -1; 684} 685 686 687static int family_handler(struct nl_msg *msg, void *arg) 688{ 689 struct family_data *res = arg; 690 struct nlattr *tb[CTRL_ATTR_MAX + 1]; 691 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 692 struct nlattr *mcgrp; 693 int i; 694 695 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 696 genlmsg_attrlen(gnlh, 0), NULL); 697 if (!tb[CTRL_ATTR_MCAST_GROUPS]) 698 return NL_SKIP; 699 700 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) { 701 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1]; 702 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp), 703 nla_len(mcgrp), NULL); 704 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] || 705 !tb2[CTRL_ATTR_MCAST_GRP_ID] || 706 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]), 707 res->group, 708 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0) 709 continue; 710 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]); 711 break; 712 }; 713 714 return NL_SKIP; 715} 716 717 718static int nl_get_multicast_id(struct nl80211_global *global, 719 const char *family, const char *group) 720{ 721 struct nl_msg *msg; 722 int ret = -1; 723 struct family_data res = { group, -ENOENT }; 724 725 msg = nlmsg_alloc(); 726 if (!msg) 727 return -ENOMEM; 728 genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"), 729 0, 0, CTRL_CMD_GETFAMILY, 0); 730 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family); 731 732 ret = send_and_recv_msgs_global(global, msg, family_handler, &res); 733 msg = NULL; 734 if (ret == 0) 735 ret = res.id; 736 737nla_put_failure: 738 nlmsg_free(msg); 739 return ret; 740} 741 742 743static void * nl80211_cmd(struct wpa_driver_nl80211_data *drv, 744 struct nl_msg *msg, int flags, uint8_t cmd) 745{ 746 return genlmsg_put(msg, 0, 0, drv->global->nl80211_id, 747 0, flags, cmd, 0); 748} 749 750 751struct wiphy_idx_data { 752 int wiphy_idx; 753 enum nl80211_iftype nlmode; 754 u8 *macaddr; 755}; 756 757 758static int netdev_info_handler(struct nl_msg *msg, void *arg) 759{ 760 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 761 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 762 struct wiphy_idx_data *info = arg; 763 764 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 765 genlmsg_attrlen(gnlh, 0), NULL); 766 767 if (tb[NL80211_ATTR_WIPHY]) 768 info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]); 769 770 if (tb[NL80211_ATTR_IFTYPE]) 771 info->nlmode = nla_get_u32(tb[NL80211_ATTR_IFTYPE]); 772 773 if (tb[NL80211_ATTR_MAC] && info->macaddr) 774 os_memcpy(info->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 775 ETH_ALEN); 776 777 return NL_SKIP; 778} 779 780 781static int nl80211_get_wiphy_index(struct i802_bss *bss) 782{ 783 struct nl_msg *msg; 784 struct wiphy_idx_data data = { 785 .wiphy_idx = -1, 786 .macaddr = NULL, 787 }; 788 789 msg = nlmsg_alloc(); 790 if (!msg) 791 return NL80211_IFTYPE_UNSPECIFIED; 792 793 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 794 795 if (nl80211_set_iface_id(msg, bss) < 0) 796 goto nla_put_failure; 797 798 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) 799 return data.wiphy_idx; 800 msg = NULL; 801nla_put_failure: 802 nlmsg_free(msg); 803 return -1; 804} 805 806 807static enum nl80211_iftype nl80211_get_ifmode(struct i802_bss *bss) 808{ 809 struct nl_msg *msg; 810 struct wiphy_idx_data data = { 811 .nlmode = NL80211_IFTYPE_UNSPECIFIED, 812 .macaddr = NULL, 813 }; 814 815 msg = nlmsg_alloc(); 816 if (!msg) 817 return -1; 818 819 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 820 821 if (nl80211_set_iface_id(msg, bss) < 0) 822 goto nla_put_failure; 823 824 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) 825 return data.nlmode; 826 msg = NULL; 827nla_put_failure: 828 nlmsg_free(msg); 829 return NL80211_IFTYPE_UNSPECIFIED; 830} 831 832 833static int nl80211_get_macaddr(struct i802_bss *bss) 834{ 835 struct nl_msg *msg; 836 struct wiphy_idx_data data = { 837 .macaddr = bss->addr, 838 }; 839 840 msg = nlmsg_alloc(); 841 if (!msg) 842 return NL80211_IFTYPE_UNSPECIFIED; 843 844 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 845 if (nl80211_set_iface_id(msg, bss) < 0) 846 goto nla_put_failure; 847 848 return send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data); 849 850nla_put_failure: 851 nlmsg_free(msg); 852 return NL80211_IFTYPE_UNSPECIFIED; 853} 854 855 856static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv, 857 struct nl80211_wiphy_data *w) 858{ 859 struct nl_msg *msg; 860 int ret = -1; 861 862 msg = nlmsg_alloc(); 863 if (!msg) 864 return -1; 865 866 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS); 867 868 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx); 869 870 ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL); 871 msg = NULL; 872 if (ret) { 873 wpa_printf(MSG_DEBUG, "nl80211: Register beacons command " 874 "failed: ret=%d (%s)", 875 ret, strerror(-ret)); 876 goto nla_put_failure; 877 } 878 ret = 0; 879nla_put_failure: 880 nlmsg_free(msg); 881 return ret; 882} 883 884 885static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle) 886{ 887 struct nl80211_wiphy_data *w = eloop_ctx; 888 int res; 889 890 wpa_printf(MSG_EXCESSIVE, "nl80211: Beacon event message available"); 891 892 res = nl_recvmsgs(handle, w->nl_cb); 893 if (res) { 894 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d", 895 __func__, res); 896 } 897} 898 899 900static int process_beacon_event(struct nl_msg *msg, void *arg) 901{ 902 struct nl80211_wiphy_data *w = arg; 903 struct wpa_driver_nl80211_data *drv; 904 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 905 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 906 union wpa_event_data event; 907 908 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 909 genlmsg_attrlen(gnlh, 0), NULL); 910 911 if (gnlh->cmd != NL80211_CMD_FRAME) { 912 wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)", 913 gnlh->cmd); 914 return NL_SKIP; 915 } 916 917 if (!tb[NL80211_ATTR_FRAME]) 918 return NL_SKIP; 919 920 dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data, 921 wiphy_list) { 922 os_memset(&event, 0, sizeof(event)); 923 event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]); 924 event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]); 925 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 926 } 927 928 return NL_SKIP; 929} 930 931 932static struct nl80211_wiphy_data * 933nl80211_get_wiphy_data_ap(struct i802_bss *bss) 934{ 935 static DEFINE_DL_LIST(nl80211_wiphys); 936 struct nl80211_wiphy_data *w; 937 int wiphy_idx, found = 0; 938 struct i802_bss *tmp_bss; 939 940 if (bss->wiphy_data != NULL) 941 return bss->wiphy_data; 942 943 wiphy_idx = nl80211_get_wiphy_index(bss); 944 945 dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) { 946 if (w->wiphy_idx == wiphy_idx) 947 goto add; 948 } 949 950 /* alloc new one */ 951 w = os_zalloc(sizeof(*w)); 952 if (w == NULL) 953 return NULL; 954 w->wiphy_idx = wiphy_idx; 955 dl_list_init(&w->bsss); 956 dl_list_init(&w->drvs); 957 958 w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 959 if (!w->nl_cb) { 960 os_free(w); 961 return NULL; 962 } 963 nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL); 964 nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_beacon_event, 965 w); 966 967 w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb, 968 "wiphy beacons"); 969 if (w->nl_beacons == NULL) { 970 os_free(w); 971 return NULL; 972 } 973 974 if (nl80211_register_beacons(bss->drv, w)) { 975 nl_destroy_handles(&w->nl_beacons); 976 os_free(w); 977 return NULL; 978 } 979 980 nl80211_register_eloop_read(&w->nl_beacons, nl80211_recv_beacons, w); 981 982 dl_list_add(&nl80211_wiphys, &w->list); 983 984add: 985 /* drv entry for this bss already there? */ 986 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { 987 if (tmp_bss->drv == bss->drv) { 988 found = 1; 989 break; 990 } 991 } 992 /* if not add it */ 993 if (!found) 994 dl_list_add(&w->drvs, &bss->drv->wiphy_list); 995 996 dl_list_add(&w->bsss, &bss->wiphy_list); 997 bss->wiphy_data = w; 998 return w; 999} 1000 1001 1002static void nl80211_put_wiphy_data_ap(struct i802_bss *bss) 1003{ 1004 struct nl80211_wiphy_data *w = bss->wiphy_data; 1005 struct i802_bss *tmp_bss; 1006 int found = 0; 1007 1008 if (w == NULL) 1009 return; 1010 bss->wiphy_data = NULL; 1011 dl_list_del(&bss->wiphy_list); 1012 1013 /* still any for this drv present? */ 1014 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { 1015 if (tmp_bss->drv == bss->drv) { 1016 found = 1; 1017 break; 1018 } 1019 } 1020 /* if not remove it */ 1021 if (!found) 1022 dl_list_del(&bss->drv->wiphy_list); 1023 1024 if (!dl_list_empty(&w->bsss)) 1025 return; 1026 1027 nl80211_destroy_eloop_handle(&w->nl_beacons); 1028 1029 nl_cb_put(w->nl_cb); 1030 dl_list_del(&w->list); 1031 os_free(w); 1032} 1033 1034 1035static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid) 1036{ 1037 struct i802_bss *bss = priv; 1038 struct wpa_driver_nl80211_data *drv = bss->drv; 1039 if (!drv->associated) 1040 return -1; 1041 os_memcpy(bssid, drv->bssid, ETH_ALEN); 1042 return 0; 1043} 1044 1045 1046static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid) 1047{ 1048 struct i802_bss *bss = priv; 1049 struct wpa_driver_nl80211_data *drv = bss->drv; 1050 if (!drv->associated) 1051 return -1; 1052 os_memcpy(ssid, drv->ssid, drv->ssid_len); 1053 return drv->ssid_len; 1054} 1055 1056 1057static void wpa_driver_nl80211_event_newlink( 1058 struct wpa_driver_nl80211_data *drv, char *ifname) 1059{ 1060 union wpa_event_data event; 1061 1062 if (os_strcmp(drv->first_bss->ifname, ifname) == 0) { 1063 if (if_nametoindex(drv->first_bss->ifname) == 0) { 1064 wpa_printf(MSG_DEBUG, "nl80211: Interface %s does not exist - ignore RTM_NEWLINK", 1065 drv->first_bss->ifname); 1066 return; 1067 } 1068 if (!drv->if_removed) 1069 return; 1070 wpa_printf(MSG_DEBUG, "nl80211: Mark if_removed=0 for %s based on RTM_NEWLINK event", 1071 drv->first_bss->ifname); 1072 drv->if_removed = 0; 1073 } 1074 1075 os_memset(&event, 0, sizeof(event)); 1076 os_strlcpy(event.interface_status.ifname, ifname, 1077 sizeof(event.interface_status.ifname)); 1078 event.interface_status.ievent = EVENT_INTERFACE_ADDED; 1079 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); 1080} 1081 1082 1083static void wpa_driver_nl80211_event_dellink( 1084 struct wpa_driver_nl80211_data *drv, char *ifname) 1085{ 1086 union wpa_event_data event; 1087 1088 if (os_strcmp(drv->first_bss->ifname, ifname) == 0) { 1089 if (drv->if_removed) { 1090 wpa_printf(MSG_DEBUG, "nl80211: if_removed already set - ignore RTM_DELLINK event for %s", 1091 ifname); 1092 return; 1093 } 1094 wpa_printf(MSG_DEBUG, "RTM_DELLINK: Interface '%s' removed - mark if_removed=1", 1095 ifname); 1096 drv->if_removed = 1; 1097 } else { 1098 wpa_printf(MSG_DEBUG, "RTM_DELLINK: Interface '%s' removed", 1099 ifname); 1100 } 1101 1102 os_memset(&event, 0, sizeof(event)); 1103 os_strlcpy(event.interface_status.ifname, ifname, 1104 sizeof(event.interface_status.ifname)); 1105 event.interface_status.ievent = EVENT_INTERFACE_REMOVED; 1106 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); 1107} 1108 1109 1110static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv, 1111 u8 *buf, size_t len) 1112{ 1113 int attrlen, rta_len; 1114 struct rtattr *attr; 1115 1116 attrlen = len; 1117 attr = (struct rtattr *) buf; 1118 1119 rta_len = RTA_ALIGN(sizeof(struct rtattr)); 1120 while (RTA_OK(attr, attrlen)) { 1121 if (attr->rta_type == IFLA_IFNAME) { 1122 if (os_strcmp(((char *) attr) + rta_len, 1123 drv->first_bss->ifname) == 0) 1124 return 1; 1125 else 1126 break; 1127 } 1128 attr = RTA_NEXT(attr, attrlen); 1129 } 1130 1131 return 0; 1132} 1133 1134 1135static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv, 1136 int ifindex, u8 *buf, size_t len) 1137{ 1138 if (drv->ifindex == ifindex) 1139 return 1; 1140 1141 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) { 1142 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed " 1143 "interface"); 1144 wpa_driver_nl80211_finish_drv_init(drv, NULL, 0); 1145 return 1; 1146 } 1147 1148 return 0; 1149} 1150 1151 1152static struct wpa_driver_nl80211_data * 1153nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len) 1154{ 1155 struct wpa_driver_nl80211_data *drv; 1156 dl_list_for_each(drv, &global->interfaces, 1157 struct wpa_driver_nl80211_data, list) { 1158 if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) || 1159 have_ifidx(drv, idx)) 1160 return drv; 1161 } 1162 return NULL; 1163} 1164 1165 1166static void wpa_driver_nl80211_event_rtm_newlink(void *ctx, 1167 struct ifinfomsg *ifi, 1168 u8 *buf, size_t len) 1169{ 1170 struct nl80211_global *global = ctx; 1171 struct wpa_driver_nl80211_data *drv; 1172 int attrlen; 1173 struct rtattr *attr; 1174 u32 brid = 0; 1175 char namebuf[IFNAMSIZ]; 1176 char ifname[IFNAMSIZ + 1]; 1177 char extra[100], *pos, *end; 1178 1179 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); 1180 if (!drv) { 1181 wpa_printf(MSG_DEBUG, "nl80211: Ignore RTM_NEWLINK event for foreign ifindex %d", 1182 ifi->ifi_index); 1183 return; 1184 } 1185 1186 extra[0] = '\0'; 1187 pos = extra; 1188 end = pos + sizeof(extra); 1189 ifname[0] = '\0'; 1190 1191 attrlen = len; 1192 attr = (struct rtattr *) buf; 1193 while (RTA_OK(attr, attrlen)) { 1194 switch (attr->rta_type) { 1195 case IFLA_IFNAME: 1196 if (RTA_PAYLOAD(attr) >= IFNAMSIZ) 1197 break; 1198 os_memcpy(ifname, RTA_DATA(attr), RTA_PAYLOAD(attr)); 1199 ifname[RTA_PAYLOAD(attr)] = '\0'; 1200 break; 1201 case IFLA_MASTER: 1202 brid = nla_get_u32((struct nlattr *) attr); 1203 pos += os_snprintf(pos, end - pos, " master=%u", brid); 1204 break; 1205 case IFLA_WIRELESS: 1206 pos += os_snprintf(pos, end - pos, " wext"); 1207 break; 1208 case IFLA_OPERSTATE: 1209 pos += os_snprintf(pos, end - pos, " operstate=%u", 1210 nla_get_u32((struct nlattr *) attr)); 1211 break; 1212 case IFLA_LINKMODE: 1213 pos += os_snprintf(pos, end - pos, " linkmode=%u", 1214 nla_get_u32((struct nlattr *) attr)); 1215 break; 1216 } 1217 attr = RTA_NEXT(attr, attrlen); 1218 } 1219 extra[sizeof(extra) - 1] = '\0'; 1220 1221 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: ifi_index=%d ifname=%s%s ifi_flags=0x%x (%s%s%s%s)", 1222 ifi->ifi_index, ifname, extra, ifi->ifi_flags, 1223 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "", 1224 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "", 1225 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "", 1226 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : ""); 1227 1228 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) { 1229 if (if_indextoname(ifi->ifi_index, namebuf) && 1230 linux_iface_up(drv->global->ioctl_sock, 1231 drv->first_bss->ifname) > 0) { 1232 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " 1233 "event since interface %s is up", namebuf); 1234 return; 1235 } 1236 wpa_printf(MSG_DEBUG, "nl80211: Interface down"); 1237 if (drv->ignore_if_down_event) { 1238 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " 1239 "event generated by mode change"); 1240 drv->ignore_if_down_event = 0; 1241 } else { 1242 drv->if_disabled = 1; 1243 wpa_supplicant_event(drv->ctx, 1244 EVENT_INTERFACE_DISABLED, NULL); 1245 1246 /* 1247 * Try to get drv again, since it may be removed as 1248 * part of the EVENT_INTERFACE_DISABLED handling for 1249 * dynamic interfaces 1250 */ 1251 drv = nl80211_find_drv(global, ifi->ifi_index, 1252 buf, len); 1253 if (!drv) 1254 return; 1255 } 1256 } 1257 1258 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) { 1259 if (if_indextoname(ifi->ifi_index, namebuf) && 1260 linux_iface_up(drv->global->ioctl_sock, 1261 drv->first_bss->ifname) == 0) { 1262 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1263 "event since interface %s is down", 1264 namebuf); 1265 } else if (if_nametoindex(drv->first_bss->ifname) == 0) { 1266 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1267 "event since interface %s does not exist", 1268 drv->first_bss->ifname); 1269 } else if (drv->if_removed) { 1270 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1271 "event since interface %s is marked " 1272 "removed", drv->first_bss->ifname); 1273 } else { 1274 wpa_printf(MSG_DEBUG, "nl80211: Interface up"); 1275 drv->if_disabled = 0; 1276 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED, 1277 NULL); 1278 } 1279 } 1280 1281 /* 1282 * Some drivers send the association event before the operup event--in 1283 * this case, lifting operstate in wpa_driver_nl80211_set_operstate() 1284 * fails. This will hit us when wpa_supplicant does not need to do 1285 * IEEE 802.1X authentication 1286 */ 1287 if (drv->operstate == 1 && 1288 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP && 1289 !(ifi->ifi_flags & IFF_RUNNING)) { 1290 wpa_printf(MSG_DEBUG, "nl80211: Set IF_OPER_UP again based on ifi_flags and expected operstate"); 1291 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 1292 -1, IF_OPER_UP); 1293 } 1294 1295 if (ifname[0]) 1296 wpa_driver_nl80211_event_newlink(drv, ifname); 1297 1298 if (ifi->ifi_family == AF_BRIDGE && brid) { 1299 /* device has been added to bridge */ 1300 if_indextoname(brid, namebuf); 1301 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s", 1302 brid, namebuf); 1303 add_ifidx(drv, brid); 1304 } 1305} 1306 1307 1308static void wpa_driver_nl80211_event_rtm_dellink(void *ctx, 1309 struct ifinfomsg *ifi, 1310 u8 *buf, size_t len) 1311{ 1312 struct nl80211_global *global = ctx; 1313 struct wpa_driver_nl80211_data *drv; 1314 int attrlen; 1315 struct rtattr *attr; 1316 u32 brid = 0; 1317 char ifname[IFNAMSIZ + 1]; 1318 1319 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); 1320 if (!drv) { 1321 wpa_printf(MSG_DEBUG, "nl80211: Ignore RTM_DELLINK event for foreign ifindex %d", 1322 ifi->ifi_index); 1323 return; 1324 } 1325 1326 ifname[0] = '\0'; 1327 1328 attrlen = len; 1329 attr = (struct rtattr *) buf; 1330 while (RTA_OK(attr, attrlen)) { 1331 switch (attr->rta_type) { 1332 case IFLA_IFNAME: 1333 if (RTA_PAYLOAD(attr) >= IFNAMSIZ) 1334 break; 1335 os_memcpy(ifname, RTA_DATA(attr), RTA_PAYLOAD(attr)); 1336 ifname[RTA_PAYLOAD(attr)] = '\0'; 1337 break; 1338 case IFLA_MASTER: 1339 brid = nla_get_u32((struct nlattr *) attr); 1340 break; 1341 } 1342 attr = RTA_NEXT(attr, attrlen); 1343 } 1344 1345 if (ifname[0]) 1346 wpa_driver_nl80211_event_dellink(drv, ifname); 1347 1348 if (ifi->ifi_family == AF_BRIDGE && brid) { 1349 /* device has been removed from bridge */ 1350 char namebuf[IFNAMSIZ]; 1351 if_indextoname(brid, namebuf); 1352 wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge " 1353 "%s", brid, namebuf); 1354 del_ifidx(drv, brid); 1355 } 1356} 1357 1358 1359static void mlme_event_auth(struct wpa_driver_nl80211_data *drv, 1360 const u8 *frame, size_t len) 1361{ 1362 const struct ieee80211_mgmt *mgmt; 1363 union wpa_event_data event; 1364 1365 wpa_printf(MSG_DEBUG, "nl80211: Authenticate event"); 1366 mgmt = (const struct ieee80211_mgmt *) frame; 1367 if (len < 24 + sizeof(mgmt->u.auth)) { 1368 wpa_printf(MSG_DEBUG, "nl80211: Too short association event " 1369 "frame"); 1370 return; 1371 } 1372 1373 os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN); 1374 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 1375 os_memset(&event, 0, sizeof(event)); 1376 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN); 1377 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg); 1378 event.auth.auth_transaction = 1379 le_to_host16(mgmt->u.auth.auth_transaction); 1380 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code); 1381 if (len > 24 + sizeof(mgmt->u.auth)) { 1382 event.auth.ies = mgmt->u.auth.variable; 1383 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth); 1384 } 1385 1386 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event); 1387} 1388 1389 1390static unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv) 1391{ 1392 struct nl_msg *msg; 1393 int ret; 1394 struct nl80211_bss_info_arg arg; 1395 1396 os_memset(&arg, 0, sizeof(arg)); 1397 msg = nlmsg_alloc(); 1398 if (!msg) 1399 goto nla_put_failure; 1400 1401 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 1402 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 1403 1404 arg.drv = drv; 1405 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 1406 msg = NULL; 1407 if (ret == 0) { 1408 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the " 1409 "associated BSS from scan results: %u MHz", 1410 arg.assoc_freq); 1411 if (arg.assoc_freq) 1412 drv->assoc_freq = arg.assoc_freq; 1413 return drv->assoc_freq; 1414 } 1415 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 1416 "(%s)", ret, strerror(-ret)); 1417nla_put_failure: 1418 nlmsg_free(msg); 1419 return drv->assoc_freq; 1420} 1421 1422 1423static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv, 1424 const u8 *frame, size_t len) 1425{ 1426 const struct ieee80211_mgmt *mgmt; 1427 union wpa_event_data event; 1428 u16 status; 1429 1430 wpa_printf(MSG_DEBUG, "nl80211: Associate event"); 1431 mgmt = (const struct ieee80211_mgmt *) frame; 1432 if (len < 24 + sizeof(mgmt->u.assoc_resp)) { 1433 wpa_printf(MSG_DEBUG, "nl80211: Too short association event " 1434 "frame"); 1435 return; 1436 } 1437 1438 status = le_to_host16(mgmt->u.assoc_resp.status_code); 1439 if (status != WLAN_STATUS_SUCCESS) { 1440 os_memset(&event, 0, sizeof(event)); 1441 event.assoc_reject.bssid = mgmt->bssid; 1442 if (len > 24 + sizeof(mgmt->u.assoc_resp)) { 1443 event.assoc_reject.resp_ies = 1444 (u8 *) mgmt->u.assoc_resp.variable; 1445 event.assoc_reject.resp_ies_len = 1446 len - 24 - sizeof(mgmt->u.assoc_resp); 1447 } 1448 event.assoc_reject.status_code = status; 1449 1450 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); 1451 return; 1452 } 1453 1454 drv->associated = 1; 1455 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN); 1456 os_memcpy(drv->prev_bssid, mgmt->sa, ETH_ALEN); 1457 1458 os_memset(&event, 0, sizeof(event)); 1459 if (len > 24 + sizeof(mgmt->u.assoc_resp)) { 1460 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable; 1461 event.assoc_info.resp_ies_len = 1462 len - 24 - sizeof(mgmt->u.assoc_resp); 1463 } 1464 1465 event.assoc_info.freq = drv->assoc_freq; 1466 1467 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); 1468} 1469 1470 1471static void mlme_event_connect(struct wpa_driver_nl80211_data *drv, 1472 enum nl80211_commands cmd, struct nlattr *status, 1473 struct nlattr *addr, struct nlattr *req_ie, 1474 struct nlattr *resp_ie) 1475{ 1476 union wpa_event_data event; 1477 1478 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 1479 /* 1480 * Avoid reporting two association events that would confuse 1481 * the core code. 1482 */ 1483 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) " 1484 "when using userspace SME", cmd); 1485 return; 1486 } 1487 1488 if (cmd == NL80211_CMD_CONNECT) 1489 wpa_printf(MSG_DEBUG, "nl80211: Connect event"); 1490 else if (cmd == NL80211_CMD_ROAM) 1491 wpa_printf(MSG_DEBUG, "nl80211: Roam event"); 1492 1493 os_memset(&event, 0, sizeof(event)); 1494 if (cmd == NL80211_CMD_CONNECT && 1495 nla_get_u16(status) != WLAN_STATUS_SUCCESS) { 1496 if (addr) 1497 event.assoc_reject.bssid = nla_data(addr); 1498 if (resp_ie) { 1499 event.assoc_reject.resp_ies = nla_data(resp_ie); 1500 event.assoc_reject.resp_ies_len = nla_len(resp_ie); 1501 } 1502 event.assoc_reject.status_code = nla_get_u16(status); 1503 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); 1504 return; 1505 } 1506 1507 drv->associated = 1; 1508 if (addr) { 1509 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN); 1510 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); 1511 } 1512 1513 if (req_ie) { 1514 event.assoc_info.req_ies = nla_data(req_ie); 1515 event.assoc_info.req_ies_len = nla_len(req_ie); 1516 } 1517 if (resp_ie) { 1518 event.assoc_info.resp_ies = nla_data(resp_ie); 1519 event.assoc_info.resp_ies_len = nla_len(resp_ie); 1520 } 1521 1522 event.assoc_info.freq = nl80211_get_assoc_freq(drv); 1523 1524 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); 1525} 1526 1527 1528static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv, 1529 struct nlattr *reason, struct nlattr *addr, 1530 struct nlattr *by_ap) 1531{ 1532 union wpa_event_data data; 1533 unsigned int locally_generated = by_ap == NULL; 1534 1535 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 1536 /* 1537 * Avoid reporting two disassociation events that could 1538 * confuse the core code. 1539 */ 1540 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " 1541 "event when using userspace SME"); 1542 return; 1543 } 1544 1545 if (drv->ignore_next_local_disconnect) { 1546 drv->ignore_next_local_disconnect = 0; 1547 if (locally_generated) { 1548 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " 1549 "event triggered during reassociation"); 1550 return; 1551 } 1552 wpa_printf(MSG_WARNING, "nl80211: Was expecting local " 1553 "disconnect but got another disconnect " 1554 "event first"); 1555 } 1556 1557 wpa_printf(MSG_DEBUG, "nl80211: Disconnect event"); 1558 nl80211_mark_disconnected(drv); 1559 os_memset(&data, 0, sizeof(data)); 1560 if (reason) 1561 data.deauth_info.reason_code = nla_get_u16(reason); 1562 data.deauth_info.locally_generated = by_ap == NULL; 1563 wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, &data); 1564} 1565 1566 1567static int calculate_chan_offset(int width, int freq, int cf1, int cf2) 1568{ 1569 int freq1 = 0; 1570 1571 switch (convert2width(width)) { 1572 case CHAN_WIDTH_20_NOHT: 1573 case CHAN_WIDTH_20: 1574 return 0; 1575 case CHAN_WIDTH_40: 1576 freq1 = cf1 - 10; 1577 break; 1578 case CHAN_WIDTH_80: 1579 freq1 = cf1 - 30; 1580 break; 1581 case CHAN_WIDTH_160: 1582 freq1 = cf1 - 70; 1583 break; 1584 case CHAN_WIDTH_UNKNOWN: 1585 case CHAN_WIDTH_80P80: 1586 /* FIXME: implement this */ 1587 return 0; 1588 } 1589 1590 return (abs(freq - freq1) / 20) % 2 == 0 ? 1 : -1; 1591} 1592 1593 1594static void mlme_event_ch_switch(struct wpa_driver_nl80211_data *drv, 1595 struct nlattr *ifindex, struct nlattr *freq, 1596 struct nlattr *type, struct nlattr *bw, 1597 struct nlattr *cf1, struct nlattr *cf2) 1598{ 1599 struct i802_bss *bss; 1600 union wpa_event_data data; 1601 int ht_enabled = 1; 1602 int chan_offset = 0; 1603 int ifidx; 1604 1605 wpa_printf(MSG_DEBUG, "nl80211: Channel switch event"); 1606 1607 if (!freq) 1608 return; 1609 1610 ifidx = nla_get_u32(ifindex); 1611 for (bss = drv->first_bss; bss; bss = bss->next) 1612 if (bss->ifindex == ifidx) 1613 break; 1614 1615 if (bss == NULL) { 1616 wpa_printf(MSG_WARNING, "nl80211: Unknown ifindex (%d) for channel switch, ignoring", 1617 ifidx); 1618 return; 1619 } 1620 1621 if (type) { 1622 switch (nla_get_u32(type)) { 1623 case NL80211_CHAN_NO_HT: 1624 ht_enabled = 0; 1625 break; 1626 case NL80211_CHAN_HT20: 1627 break; 1628 case NL80211_CHAN_HT40PLUS: 1629 chan_offset = 1; 1630 break; 1631 case NL80211_CHAN_HT40MINUS: 1632 chan_offset = -1; 1633 break; 1634 } 1635 } else if (bw && cf1) { 1636 /* This can happen for example with VHT80 ch switch */ 1637 chan_offset = calculate_chan_offset(nla_get_u32(bw), 1638 nla_get_u32(freq), 1639 nla_get_u32(cf1), 1640 cf2 ? nla_get_u32(cf2) : 0); 1641 } else { 1642 wpa_printf(MSG_WARNING, "nl80211: Unknown secondary channel information - following channel definition calculations may fail"); 1643 } 1644 1645 os_memset(&data, 0, sizeof(data)); 1646 data.ch_switch.freq = nla_get_u32(freq); 1647 data.ch_switch.ht_enabled = ht_enabled; 1648 data.ch_switch.ch_offset = chan_offset; 1649 if (bw) 1650 data.ch_switch.ch_width = convert2width(nla_get_u32(bw)); 1651 if (cf1) 1652 data.ch_switch.cf1 = nla_get_u32(cf1); 1653 if (cf2) 1654 data.ch_switch.cf2 = nla_get_u32(cf2); 1655 1656 bss->freq = data.ch_switch.freq; 1657 1658 wpa_supplicant_event(drv->ctx, EVENT_CH_SWITCH, &data); 1659} 1660 1661 1662static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv, 1663 enum nl80211_commands cmd, struct nlattr *addr) 1664{ 1665 union wpa_event_data event; 1666 enum wpa_event_type ev; 1667 1668 if (nla_len(addr) != ETH_ALEN) 1669 return; 1670 1671 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR, 1672 cmd, MAC2STR((u8 *) nla_data(addr))); 1673 1674 if (cmd == NL80211_CMD_AUTHENTICATE) 1675 ev = EVENT_AUTH_TIMED_OUT; 1676 else if (cmd == NL80211_CMD_ASSOCIATE) 1677 ev = EVENT_ASSOC_TIMED_OUT; 1678 else 1679 return; 1680 1681 os_memset(&event, 0, sizeof(event)); 1682 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN); 1683 wpa_supplicant_event(drv->ctx, ev, &event); 1684} 1685 1686 1687static void mlme_event_mgmt(struct i802_bss *bss, 1688 struct nlattr *freq, struct nlattr *sig, 1689 const u8 *frame, size_t len) 1690{ 1691 struct wpa_driver_nl80211_data *drv = bss->drv; 1692 const struct ieee80211_mgmt *mgmt; 1693 union wpa_event_data event; 1694 u16 fc, stype; 1695 int ssi_signal = 0; 1696 int rx_freq = 0; 1697 1698 wpa_printf(MSG_MSGDUMP, "nl80211: Frame event"); 1699 mgmt = (const struct ieee80211_mgmt *) frame; 1700 if (len < 24) { 1701 wpa_printf(MSG_DEBUG, "nl80211: Too short management frame"); 1702 return; 1703 } 1704 1705 fc = le_to_host16(mgmt->frame_control); 1706 stype = WLAN_FC_GET_STYPE(fc); 1707 1708 if (sig) 1709 ssi_signal = (s32) nla_get_u32(sig); 1710 1711 os_memset(&event, 0, sizeof(event)); 1712 if (freq) { 1713 event.rx_mgmt.freq = nla_get_u32(freq); 1714 rx_freq = drv->last_mgmt_freq = event.rx_mgmt.freq; 1715 } 1716 wpa_printf(MSG_DEBUG, 1717 "nl80211: RX frame freq=%d ssi_signal=%d stype=%u len=%u", 1718 rx_freq, ssi_signal, stype, (unsigned int) len); 1719 event.rx_mgmt.frame = frame; 1720 event.rx_mgmt.frame_len = len; 1721 event.rx_mgmt.ssi_signal = ssi_signal; 1722 event.rx_mgmt.drv_priv = bss; 1723 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 1724} 1725 1726 1727static void mlme_event_mgmt_tx_status(struct wpa_driver_nl80211_data *drv, 1728 struct nlattr *cookie, const u8 *frame, 1729 size_t len, struct nlattr *ack) 1730{ 1731 union wpa_event_data event; 1732 const struct ieee80211_hdr *hdr; 1733 u16 fc; 1734 1735 wpa_printf(MSG_DEBUG, "nl80211: Frame TX status event"); 1736 if (!is_ap_interface(drv->nlmode)) { 1737 u64 cookie_val; 1738 1739 if (!cookie) 1740 return; 1741 1742 cookie_val = nla_get_u64(cookie); 1743 wpa_printf(MSG_DEBUG, "nl80211: Action TX status:" 1744 " cookie=0%llx%s (ack=%d)", 1745 (long long unsigned int) cookie_val, 1746 cookie_val == drv->send_action_cookie ? 1747 " (match)" : " (unknown)", ack != NULL); 1748 if (cookie_val != drv->send_action_cookie) 1749 return; 1750 } 1751 1752 hdr = (const struct ieee80211_hdr *) frame; 1753 fc = le_to_host16(hdr->frame_control); 1754 1755 os_memset(&event, 0, sizeof(event)); 1756 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 1757 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 1758 event.tx_status.dst = hdr->addr1; 1759 event.tx_status.data = frame; 1760 event.tx_status.data_len = len; 1761 event.tx_status.ack = ack != NULL; 1762 wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event); 1763} 1764 1765 1766static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv, 1767 enum wpa_event_type type, 1768 const u8 *frame, size_t len) 1769{ 1770 const struct ieee80211_mgmt *mgmt; 1771 union wpa_event_data event; 1772 const u8 *bssid = NULL; 1773 u16 reason_code = 0; 1774 1775 if (type == EVENT_DEAUTH) 1776 wpa_printf(MSG_DEBUG, "nl80211: Deauthenticate event"); 1777 else 1778 wpa_printf(MSG_DEBUG, "nl80211: Disassociate event"); 1779 1780 mgmt = (const struct ieee80211_mgmt *) frame; 1781 if (len >= 24) { 1782 bssid = mgmt->bssid; 1783 1784 if ((drv->capa.flags & WPA_DRIVER_FLAGS_SME) && 1785 !drv->associated && 1786 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0 && 1787 os_memcmp(bssid, drv->auth_attempt_bssid, ETH_ALEN) != 0 && 1788 os_memcmp(bssid, drv->prev_bssid, ETH_ALEN) == 0) { 1789 /* 1790 * Avoid issues with some roaming cases where 1791 * disconnection event for the old AP may show up after 1792 * we have started connection with the new AP. 1793 */ 1794 wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth/disassoc event from old AP " MACSTR " when already authenticating with " MACSTR, 1795 MAC2STR(bssid), 1796 MAC2STR(drv->auth_attempt_bssid)); 1797 return; 1798 } 1799 1800 if (drv->associated != 0 && 1801 os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 && 1802 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) { 1803 /* 1804 * We have presumably received this deauth as a 1805 * response to a clear_state_mismatch() outgoing 1806 * deauth. Don't let it take us offline! 1807 */ 1808 wpa_printf(MSG_DEBUG, "nl80211: Deauth received " 1809 "from Unknown BSSID " MACSTR " -- ignoring", 1810 MAC2STR(bssid)); 1811 return; 1812 } 1813 } 1814 1815 nl80211_mark_disconnected(drv); 1816 os_memset(&event, 0, sizeof(event)); 1817 1818 /* Note: Same offset for Reason Code in both frame subtypes */ 1819 if (len >= 24 + sizeof(mgmt->u.deauth)) 1820 reason_code = le_to_host16(mgmt->u.deauth.reason_code); 1821 1822 if (type == EVENT_DISASSOC) { 1823 event.disassoc_info.locally_generated = 1824 !os_memcmp(mgmt->sa, drv->first_bss->addr, ETH_ALEN); 1825 event.disassoc_info.addr = bssid; 1826 event.disassoc_info.reason_code = reason_code; 1827 if (frame + len > mgmt->u.disassoc.variable) { 1828 event.disassoc_info.ie = mgmt->u.disassoc.variable; 1829 event.disassoc_info.ie_len = frame + len - 1830 mgmt->u.disassoc.variable; 1831 } 1832 } else { 1833 if (drv->ignore_deauth_event) { 1834 wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth event due to previous forced deauth-during-auth"); 1835 drv->ignore_deauth_event = 0; 1836 return; 1837 } 1838 event.deauth_info.locally_generated = 1839 !os_memcmp(mgmt->sa, drv->first_bss->addr, ETH_ALEN); 1840 if (drv->ignore_next_local_deauth) { 1841 drv->ignore_next_local_deauth = 0; 1842 if (event.deauth_info.locally_generated) { 1843 wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth event triggered due to own deauth request"); 1844 return; 1845 } 1846 wpa_printf(MSG_WARNING, "nl80211: Was expecting local deauth but got another disconnect event first"); 1847 } 1848 event.deauth_info.addr = bssid; 1849 event.deauth_info.reason_code = reason_code; 1850 if (frame + len > mgmt->u.deauth.variable) { 1851 event.deauth_info.ie = mgmt->u.deauth.variable; 1852 event.deauth_info.ie_len = frame + len - 1853 mgmt->u.deauth.variable; 1854 } 1855 } 1856 1857 wpa_supplicant_event(drv->ctx, type, &event); 1858} 1859 1860 1861static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv, 1862 enum wpa_event_type type, 1863 const u8 *frame, size_t len) 1864{ 1865 const struct ieee80211_mgmt *mgmt; 1866 union wpa_event_data event; 1867 u16 reason_code = 0; 1868 1869 if (type == EVENT_UNPROT_DEAUTH) 1870 wpa_printf(MSG_DEBUG, "nl80211: Unprot Deauthenticate event"); 1871 else 1872 wpa_printf(MSG_DEBUG, "nl80211: Unprot Disassociate event"); 1873 1874 if (len < 24) 1875 return; 1876 1877 mgmt = (const struct ieee80211_mgmt *) frame; 1878 1879 os_memset(&event, 0, sizeof(event)); 1880 /* Note: Same offset for Reason Code in both frame subtypes */ 1881 if (len >= 24 + sizeof(mgmt->u.deauth)) 1882 reason_code = le_to_host16(mgmt->u.deauth.reason_code); 1883 1884 if (type == EVENT_UNPROT_DISASSOC) { 1885 event.unprot_disassoc.sa = mgmt->sa; 1886 event.unprot_disassoc.da = mgmt->da; 1887 event.unprot_disassoc.reason_code = reason_code; 1888 } else { 1889 event.unprot_deauth.sa = mgmt->sa; 1890 event.unprot_deauth.da = mgmt->da; 1891 event.unprot_deauth.reason_code = reason_code; 1892 } 1893 1894 wpa_supplicant_event(drv->ctx, type, &event); 1895} 1896 1897 1898static void mlme_event(struct i802_bss *bss, 1899 enum nl80211_commands cmd, struct nlattr *frame, 1900 struct nlattr *addr, struct nlattr *timed_out, 1901 struct nlattr *freq, struct nlattr *ack, 1902 struct nlattr *cookie, struct nlattr *sig) 1903{ 1904 struct wpa_driver_nl80211_data *drv = bss->drv; 1905 const u8 *data; 1906 size_t len; 1907 1908 if (timed_out && addr) { 1909 mlme_timeout_event(drv, cmd, addr); 1910 return; 1911 } 1912 1913 if (frame == NULL) { 1914 wpa_printf(MSG_DEBUG, 1915 "nl80211: MLME event %d (%s) without frame data", 1916 cmd, nl80211_command_to_string(cmd)); 1917 return; 1918 } 1919 1920 data = nla_data(frame); 1921 len = nla_len(frame); 1922 if (len < 4 + 2 * ETH_ALEN) { 1923 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" 1924 MACSTR ") - too short", 1925 cmd, nl80211_command_to_string(cmd), bss->ifname, 1926 MAC2STR(bss->addr)); 1927 return; 1928 } 1929 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" MACSTR 1930 ") A1=" MACSTR " A2=" MACSTR, cmd, 1931 nl80211_command_to_string(cmd), bss->ifname, 1932 MAC2STR(bss->addr), MAC2STR(data + 4), 1933 MAC2STR(data + 4 + ETH_ALEN)); 1934 if (cmd != NL80211_CMD_FRAME_TX_STATUS && !(data[4] & 0x01) && 1935 os_memcmp(bss->addr, data + 4, ETH_ALEN) != 0 && 1936 os_memcmp(bss->addr, data + 4 + ETH_ALEN, ETH_ALEN) != 0) { 1937 wpa_printf(MSG_MSGDUMP, "nl80211: %s: Ignore MLME frame event " 1938 "for foreign address", bss->ifname); 1939 return; 1940 } 1941 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame", 1942 nla_data(frame), nla_len(frame)); 1943 1944 switch (cmd) { 1945 case NL80211_CMD_AUTHENTICATE: 1946 mlme_event_auth(drv, nla_data(frame), nla_len(frame)); 1947 break; 1948 case NL80211_CMD_ASSOCIATE: 1949 mlme_event_assoc(drv, nla_data(frame), nla_len(frame)); 1950 break; 1951 case NL80211_CMD_DEAUTHENTICATE: 1952 mlme_event_deauth_disassoc(drv, EVENT_DEAUTH, 1953 nla_data(frame), nla_len(frame)); 1954 break; 1955 case NL80211_CMD_DISASSOCIATE: 1956 mlme_event_deauth_disassoc(drv, EVENT_DISASSOC, 1957 nla_data(frame), nla_len(frame)); 1958 break; 1959 case NL80211_CMD_FRAME: 1960 mlme_event_mgmt(bss, freq, sig, nla_data(frame), 1961 nla_len(frame)); 1962 break; 1963 case NL80211_CMD_FRAME_TX_STATUS: 1964 mlme_event_mgmt_tx_status(drv, cookie, nla_data(frame), 1965 nla_len(frame), ack); 1966 break; 1967 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 1968 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH, 1969 nla_data(frame), nla_len(frame)); 1970 break; 1971 case NL80211_CMD_UNPROT_DISASSOCIATE: 1972 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC, 1973 nla_data(frame), nla_len(frame)); 1974 break; 1975 default: 1976 break; 1977 } 1978} 1979 1980 1981static void mlme_event_michael_mic_failure(struct i802_bss *bss, 1982 struct nlattr *tb[]) 1983{ 1984 union wpa_event_data data; 1985 1986 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure"); 1987 os_memset(&data, 0, sizeof(data)); 1988 if (tb[NL80211_ATTR_MAC]) { 1989 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address", 1990 nla_data(tb[NL80211_ATTR_MAC]), 1991 nla_len(tb[NL80211_ATTR_MAC])); 1992 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]); 1993 } 1994 if (tb[NL80211_ATTR_KEY_SEQ]) { 1995 wpa_hexdump(MSG_DEBUG, "nl80211: TSC", 1996 nla_data(tb[NL80211_ATTR_KEY_SEQ]), 1997 nla_len(tb[NL80211_ATTR_KEY_SEQ])); 1998 } 1999 if (tb[NL80211_ATTR_KEY_TYPE]) { 2000 enum nl80211_key_type key_type = 2001 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]); 2002 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type); 2003 if (key_type == NL80211_KEYTYPE_PAIRWISE) 2004 data.michael_mic_failure.unicast = 1; 2005 } else 2006 data.michael_mic_failure.unicast = 1; 2007 2008 if (tb[NL80211_ATTR_KEY_IDX]) { 2009 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]); 2010 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id); 2011 } 2012 2013 wpa_supplicant_event(bss->ctx, EVENT_MICHAEL_MIC_FAILURE, &data); 2014} 2015 2016 2017static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv, 2018 struct nlattr *tb[]) 2019{ 2020 if (tb[NL80211_ATTR_MAC] == NULL) { 2021 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined " 2022 "event"); 2023 return; 2024 } 2025 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2026 2027 drv->associated = 1; 2028 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined", 2029 MAC2STR(drv->bssid)); 2030 2031 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL); 2032} 2033 2034 2035static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv, 2036 int cancel_event, struct nlattr *tb[]) 2037{ 2038 unsigned int freq, chan_type, duration; 2039 union wpa_event_data data; 2040 u64 cookie; 2041 2042 if (tb[NL80211_ATTR_WIPHY_FREQ]) 2043 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); 2044 else 2045 freq = 0; 2046 2047 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) 2048 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); 2049 else 2050 chan_type = 0; 2051 2052 if (tb[NL80211_ATTR_DURATION]) 2053 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]); 2054 else 2055 duration = 0; 2056 2057 if (tb[NL80211_ATTR_COOKIE]) 2058 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 2059 else 2060 cookie = 0; 2061 2062 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d " 2063 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))", 2064 cancel_event, freq, chan_type, duration, 2065 (long long unsigned int) cookie, 2066 cookie == drv->remain_on_chan_cookie ? "match" : "unknown"); 2067 2068 if (cookie != drv->remain_on_chan_cookie) 2069 return; /* not for us */ 2070 2071 if (cancel_event) 2072 drv->pending_remain_on_chan = 0; 2073 2074 os_memset(&data, 0, sizeof(data)); 2075 data.remain_on_channel.freq = freq; 2076 data.remain_on_channel.duration = duration; 2077 wpa_supplicant_event(drv->ctx, cancel_event ? 2078 EVENT_CANCEL_REMAIN_ON_CHANNEL : 2079 EVENT_REMAIN_ON_CHANNEL, &data); 2080} 2081 2082 2083static void mlme_event_ft_event(struct wpa_driver_nl80211_data *drv, 2084 struct nlattr *tb[]) 2085{ 2086 union wpa_event_data data; 2087 2088 os_memset(&data, 0, sizeof(data)); 2089 2090 if (tb[NL80211_ATTR_IE]) { 2091 data.ft_ies.ies = nla_data(tb[NL80211_ATTR_IE]); 2092 data.ft_ies.ies_len = nla_len(tb[NL80211_ATTR_IE]); 2093 } 2094 2095 if (tb[NL80211_ATTR_IE_RIC]) { 2096 data.ft_ies.ric_ies = nla_data(tb[NL80211_ATTR_IE_RIC]); 2097 data.ft_ies.ric_ies_len = nla_len(tb[NL80211_ATTR_IE_RIC]); 2098 } 2099 2100 if (tb[NL80211_ATTR_MAC]) 2101 os_memcpy(data.ft_ies.target_ap, 2102 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2103 2104 wpa_printf(MSG_DEBUG, "nl80211: FT event target_ap " MACSTR, 2105 MAC2STR(data.ft_ies.target_ap)); 2106 2107 wpa_supplicant_event(drv->ctx, EVENT_FT_RESPONSE, &data); 2108} 2109 2110 2111static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted, 2112 struct nlattr *tb[]) 2113{ 2114 union wpa_event_data event; 2115 struct nlattr *nl; 2116 int rem; 2117 struct scan_info *info; 2118#define MAX_REPORT_FREQS 50 2119 int freqs[MAX_REPORT_FREQS]; 2120 int num_freqs = 0; 2121 2122 if (drv->scan_for_auth) { 2123 drv->scan_for_auth = 0; 2124 wpa_printf(MSG_DEBUG, "nl80211: Scan results for missing " 2125 "cfg80211 BSS entry"); 2126 wpa_driver_nl80211_authenticate_retry(drv); 2127 return; 2128 } 2129 2130 os_memset(&event, 0, sizeof(event)); 2131 info = &event.scan_info; 2132 info->aborted = aborted; 2133 2134 if (tb[NL80211_ATTR_SCAN_SSIDS]) { 2135 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) { 2136 struct wpa_driver_scan_ssid *s = 2137 &info->ssids[info->num_ssids]; 2138 s->ssid = nla_data(nl); 2139 s->ssid_len = nla_len(nl); 2140 wpa_printf(MSG_DEBUG, "nl80211: Scan probed for SSID '%s'", 2141 wpa_ssid_txt(s->ssid, s->ssid_len)); 2142 info->num_ssids++; 2143 if (info->num_ssids == WPAS_MAX_SCAN_SSIDS) 2144 break; 2145 } 2146 } 2147 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) { 2148 char msg[200], *pos, *end; 2149 int res; 2150 2151 pos = msg; 2152 end = pos + sizeof(msg); 2153 *pos = '\0'; 2154 2155 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem) 2156 { 2157 freqs[num_freqs] = nla_get_u32(nl); 2158 res = os_snprintf(pos, end - pos, " %d", 2159 freqs[num_freqs]); 2160 if (res > 0 && end - pos > res) 2161 pos += res; 2162 num_freqs++; 2163 if (num_freqs == MAX_REPORT_FREQS - 1) 2164 break; 2165 } 2166 info->freqs = freqs; 2167 info->num_freqs = num_freqs; 2168 wpa_printf(MSG_DEBUG, "nl80211: Scan included frequencies:%s", 2169 msg); 2170 } 2171 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event); 2172} 2173 2174 2175static int get_link_signal(struct nl_msg *msg, void *arg) 2176{ 2177 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2178 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2179 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1]; 2180 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = { 2181 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 }, 2182 [NL80211_STA_INFO_SIGNAL_AVG] = { .type = NLA_U8 }, 2183 }; 2184 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1]; 2185 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = { 2186 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 }, 2187 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 }, 2188 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG }, 2189 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG }, 2190 }; 2191 struct wpa_signal_info *sig_change = arg; 2192 2193 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2194 genlmsg_attrlen(gnlh, 0), NULL); 2195 if (!tb[NL80211_ATTR_STA_INFO] || 2196 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX, 2197 tb[NL80211_ATTR_STA_INFO], policy)) 2198 return NL_SKIP; 2199 if (!sinfo[NL80211_STA_INFO_SIGNAL]) 2200 return NL_SKIP; 2201 2202 sig_change->current_signal = 2203 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]); 2204 2205 if (sinfo[NL80211_STA_INFO_SIGNAL_AVG]) 2206 sig_change->avg_signal = 2207 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL_AVG]); 2208 else 2209 sig_change->avg_signal = 0; 2210 2211 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) { 2212 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX, 2213 sinfo[NL80211_STA_INFO_TX_BITRATE], 2214 rate_policy)) { 2215 sig_change->current_txrate = 0; 2216 } else { 2217 if (rinfo[NL80211_RATE_INFO_BITRATE]) { 2218 sig_change->current_txrate = 2219 nla_get_u16(rinfo[ 2220 NL80211_RATE_INFO_BITRATE]) * 100; 2221 } 2222 } 2223 } 2224 2225 return NL_SKIP; 2226} 2227 2228 2229static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv, 2230 struct wpa_signal_info *sig) 2231{ 2232 struct nl_msg *msg; 2233 2234 sig->current_signal = -9999; 2235 sig->current_txrate = 0; 2236 2237 msg = nlmsg_alloc(); 2238 if (!msg) 2239 return -ENOMEM; 2240 2241 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 2242 2243 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2244 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 2245 2246 return send_and_recv_msgs(drv, msg, get_link_signal, sig); 2247 nla_put_failure: 2248 nlmsg_free(msg); 2249 return -ENOBUFS; 2250} 2251 2252 2253static int get_link_noise(struct nl_msg *msg, void *arg) 2254{ 2255 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2256 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2257 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 2258 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 2259 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 2260 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 2261 }; 2262 struct wpa_signal_info *sig_change = arg; 2263 2264 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2265 genlmsg_attrlen(gnlh, 0), NULL); 2266 2267 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 2268 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!"); 2269 return NL_SKIP; 2270 } 2271 2272 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 2273 tb[NL80211_ATTR_SURVEY_INFO], 2274 survey_policy)) { 2275 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested " 2276 "attributes!"); 2277 return NL_SKIP; 2278 } 2279 2280 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 2281 return NL_SKIP; 2282 2283 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 2284 sig_change->frequency) 2285 return NL_SKIP; 2286 2287 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 2288 return NL_SKIP; 2289 2290 sig_change->current_noise = 2291 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 2292 2293 return NL_SKIP; 2294} 2295 2296 2297static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv, 2298 struct wpa_signal_info *sig_change) 2299{ 2300 struct nl_msg *msg; 2301 2302 sig_change->current_noise = 9999; 2303 sig_change->frequency = drv->assoc_freq; 2304 2305 msg = nlmsg_alloc(); 2306 if (!msg) 2307 return -ENOMEM; 2308 2309 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 2310 2311 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2312 2313 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change); 2314 nla_put_failure: 2315 nlmsg_free(msg); 2316 return -ENOBUFS; 2317} 2318 2319 2320static int get_noise_for_scan_results(struct nl_msg *msg, void *arg) 2321{ 2322 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2323 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2324 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 2325 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 2326 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 2327 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 2328 }; 2329 struct wpa_scan_results *scan_results = arg; 2330 struct wpa_scan_res *scan_res; 2331 size_t i; 2332 2333 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2334 genlmsg_attrlen(gnlh, 0), NULL); 2335 2336 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 2337 wpa_printf(MSG_DEBUG, "nl80211: Survey data missing"); 2338 return NL_SKIP; 2339 } 2340 2341 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 2342 tb[NL80211_ATTR_SURVEY_INFO], 2343 survey_policy)) { 2344 wpa_printf(MSG_DEBUG, "nl80211: Failed to parse nested " 2345 "attributes"); 2346 return NL_SKIP; 2347 } 2348 2349 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 2350 return NL_SKIP; 2351 2352 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 2353 return NL_SKIP; 2354 2355 for (i = 0; i < scan_results->num; ++i) { 2356 scan_res = scan_results->res[i]; 2357 if (!scan_res) 2358 continue; 2359 if ((int) nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 2360 scan_res->freq) 2361 continue; 2362 if (!(scan_res->flags & WPA_SCAN_NOISE_INVALID)) 2363 continue; 2364 scan_res->noise = (s8) 2365 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 2366 scan_res->flags &= ~WPA_SCAN_NOISE_INVALID; 2367 } 2368 2369 return NL_SKIP; 2370} 2371 2372 2373static int nl80211_get_noise_for_scan_results( 2374 struct wpa_driver_nl80211_data *drv, 2375 struct wpa_scan_results *scan_res) 2376{ 2377 struct nl_msg *msg; 2378 2379 msg = nlmsg_alloc(); 2380 if (!msg) 2381 return -ENOMEM; 2382 2383 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 2384 2385 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2386 2387 return send_and_recv_msgs(drv, msg, get_noise_for_scan_results, 2388 scan_res); 2389 nla_put_failure: 2390 nlmsg_free(msg); 2391 return -ENOBUFS; 2392} 2393 2394 2395static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv, 2396 struct nlattr *tb[]) 2397{ 2398 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = { 2399 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, 2400 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 }, 2401 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, 2402 [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 }, 2403 }; 2404 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1]; 2405 enum nl80211_cqm_rssi_threshold_event event; 2406 union wpa_event_data ed; 2407 struct wpa_signal_info sig; 2408 int res; 2409 2410 if (tb[NL80211_ATTR_CQM] == NULL || 2411 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM], 2412 cqm_policy)) { 2413 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event"); 2414 return; 2415 } 2416 2417 os_memset(&ed, 0, sizeof(ed)); 2418 2419 if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) { 2420 if (!tb[NL80211_ATTR_MAC]) 2421 return; 2422 os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]), 2423 ETH_ALEN); 2424 wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed); 2425 return; 2426 } 2427 2428 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL) 2429 return; 2430 event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]); 2431 2432 if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) { 2433 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 2434 "event: RSSI high"); 2435 ed.signal_change.above_threshold = 1; 2436 } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) { 2437 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 2438 "event: RSSI low"); 2439 ed.signal_change.above_threshold = 0; 2440 } else 2441 return; 2442 2443 res = nl80211_get_link_signal(drv, &sig); 2444 if (res == 0) { 2445 ed.signal_change.current_signal = sig.current_signal; 2446 ed.signal_change.current_txrate = sig.current_txrate; 2447 wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d", 2448 sig.current_signal, sig.current_txrate); 2449 } 2450 2451 res = nl80211_get_link_noise(drv, &sig); 2452 if (res == 0) { 2453 ed.signal_change.current_noise = sig.current_noise; 2454 wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm", 2455 sig.current_noise); 2456 } 2457 2458 wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed); 2459} 2460 2461 2462static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv, 2463 struct nlattr **tb) 2464{ 2465 u8 *addr; 2466 union wpa_event_data data; 2467 2468 if (tb[NL80211_ATTR_MAC] == NULL) 2469 return; 2470 addr = nla_data(tb[NL80211_ATTR_MAC]); 2471 wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr)); 2472 2473 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2474 u8 *ies = NULL; 2475 size_t ies_len = 0; 2476 if (tb[NL80211_ATTR_IE]) { 2477 ies = nla_data(tb[NL80211_ATTR_IE]); 2478 ies_len = nla_len(tb[NL80211_ATTR_IE]); 2479 } 2480 wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len); 2481 drv_event_assoc(drv->ctx, addr, ies, ies_len, 0); 2482 return; 2483 } 2484 2485 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2486 return; 2487 2488 os_memset(&data, 0, sizeof(data)); 2489 os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN); 2490 wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data); 2491} 2492 2493 2494static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv, 2495 struct nlattr **tb) 2496{ 2497 u8 *addr; 2498 union wpa_event_data data; 2499 2500 if (tb[NL80211_ATTR_MAC] == NULL) 2501 return; 2502 addr = nla_data(tb[NL80211_ATTR_MAC]); 2503 wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR, 2504 MAC2STR(addr)); 2505 2506 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2507 drv_event_disassoc(drv->ctx, addr); 2508 return; 2509 } 2510 2511 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2512 return; 2513 2514 os_memset(&data, 0, sizeof(data)); 2515 os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN); 2516 wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data); 2517} 2518 2519 2520static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv, 2521 struct nlattr **tb) 2522{ 2523 struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA]; 2524 static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = { 2525 [NL80211_REKEY_DATA_KEK] = { 2526 .minlen = NL80211_KEK_LEN, 2527 .maxlen = NL80211_KEK_LEN, 2528 }, 2529 [NL80211_REKEY_DATA_KCK] = { 2530 .minlen = NL80211_KCK_LEN, 2531 .maxlen = NL80211_KCK_LEN, 2532 }, 2533 [NL80211_REKEY_DATA_REPLAY_CTR] = { 2534 .minlen = NL80211_REPLAY_CTR_LEN, 2535 .maxlen = NL80211_REPLAY_CTR_LEN, 2536 }, 2537 }; 2538 union wpa_event_data data; 2539 2540 if (!tb[NL80211_ATTR_MAC]) 2541 return; 2542 if (!tb[NL80211_ATTR_REKEY_DATA]) 2543 return; 2544 if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA, 2545 tb[NL80211_ATTR_REKEY_DATA], rekey_policy)) 2546 return; 2547 if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]) 2548 return; 2549 2550 os_memset(&data, 0, sizeof(data)); 2551 data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]); 2552 wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR, 2553 MAC2STR(data.driver_gtk_rekey.bssid)); 2554 data.driver_gtk_rekey.replay_ctr = 2555 nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]); 2556 wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter", 2557 data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN); 2558 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data); 2559} 2560 2561 2562static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv, 2563 struct nlattr **tb) 2564{ 2565 struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE]; 2566 static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = { 2567 [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 }, 2568 [NL80211_PMKSA_CANDIDATE_BSSID] = { 2569 .minlen = ETH_ALEN, 2570 .maxlen = ETH_ALEN, 2571 }, 2572 [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG }, 2573 }; 2574 union wpa_event_data data; 2575 2576 wpa_printf(MSG_DEBUG, "nl80211: PMKSA candidate event"); 2577 2578 if (!tb[NL80211_ATTR_PMKSA_CANDIDATE]) 2579 return; 2580 if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE, 2581 tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy)) 2582 return; 2583 if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] || 2584 !cand[NL80211_PMKSA_CANDIDATE_BSSID]) 2585 return; 2586 2587 os_memset(&data, 0, sizeof(data)); 2588 os_memcpy(data.pmkid_candidate.bssid, 2589 nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN); 2590 data.pmkid_candidate.index = 2591 nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]); 2592 data.pmkid_candidate.preauth = 2593 cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL; 2594 wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data); 2595} 2596 2597 2598static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv, 2599 struct nlattr **tb) 2600{ 2601 union wpa_event_data data; 2602 2603 wpa_printf(MSG_DEBUG, "nl80211: Probe client event"); 2604 2605 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_ACK]) 2606 return; 2607 2608 os_memset(&data, 0, sizeof(data)); 2609 os_memcpy(data.client_poll.addr, 2610 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2611 2612 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_CLIENT_POLL_OK, &data); 2613} 2614 2615 2616static void nl80211_tdls_oper_event(struct wpa_driver_nl80211_data *drv, 2617 struct nlattr **tb) 2618{ 2619 union wpa_event_data data; 2620 2621 wpa_printf(MSG_DEBUG, "nl80211: TDLS operation event"); 2622 2623 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_TDLS_OPERATION]) 2624 return; 2625 2626 os_memset(&data, 0, sizeof(data)); 2627 os_memcpy(data.tdls.peer, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2628 switch (nla_get_u8(tb[NL80211_ATTR_TDLS_OPERATION])) { 2629 case NL80211_TDLS_SETUP: 2630 wpa_printf(MSG_DEBUG, "nl80211: TDLS setup request for peer " 2631 MACSTR, MAC2STR(data.tdls.peer)); 2632 data.tdls.oper = TDLS_REQUEST_SETUP; 2633 break; 2634 case NL80211_TDLS_TEARDOWN: 2635 wpa_printf(MSG_DEBUG, "nl80211: TDLS teardown request for peer " 2636 MACSTR, MAC2STR(data.tdls.peer)); 2637 data.tdls.oper = TDLS_REQUEST_TEARDOWN; 2638 break; 2639 default: 2640 wpa_printf(MSG_DEBUG, "nl80211: Unsupported TDLS operatione " 2641 "event"); 2642 return; 2643 } 2644 if (tb[NL80211_ATTR_REASON_CODE]) { 2645 data.tdls.reason_code = 2646 nla_get_u16(tb[NL80211_ATTR_REASON_CODE]); 2647 } 2648 2649 wpa_supplicant_event(drv->ctx, EVENT_TDLS, &data); 2650} 2651 2652 2653static void nl80211_stop_ap(struct wpa_driver_nl80211_data *drv, 2654 struct nlattr **tb) 2655{ 2656 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_UNAVAILABLE, NULL); 2657} 2658 2659 2660static void nl80211_connect_failed_event(struct wpa_driver_nl80211_data *drv, 2661 struct nlattr **tb) 2662{ 2663 union wpa_event_data data; 2664 u32 reason; 2665 2666 wpa_printf(MSG_DEBUG, "nl80211: Connect failed event"); 2667 2668 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_CONN_FAILED_REASON]) 2669 return; 2670 2671 os_memset(&data, 0, sizeof(data)); 2672 os_memcpy(data.connect_failed_reason.addr, 2673 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2674 2675 reason = nla_get_u32(tb[NL80211_ATTR_CONN_FAILED_REASON]); 2676 switch (reason) { 2677 case NL80211_CONN_FAIL_MAX_CLIENTS: 2678 wpa_printf(MSG_DEBUG, "nl80211: Max client reached"); 2679 data.connect_failed_reason.code = MAX_CLIENT_REACHED; 2680 break; 2681 case NL80211_CONN_FAIL_BLOCKED_CLIENT: 2682 wpa_printf(MSG_DEBUG, "nl80211: Blocked client " MACSTR 2683 " tried to connect", 2684 MAC2STR(data.connect_failed_reason.addr)); 2685 data.connect_failed_reason.code = BLOCKED_CLIENT; 2686 break; 2687 default: 2688 wpa_printf(MSG_DEBUG, "nl8021l: Unknown connect failed reason " 2689 "%u", reason); 2690 return; 2691 } 2692 2693 wpa_supplicant_event(drv->ctx, EVENT_CONNECT_FAILED_REASON, &data); 2694} 2695 2696 2697static void nl80211_radar_event(struct wpa_driver_nl80211_data *drv, 2698 struct nlattr **tb) 2699{ 2700 union wpa_event_data data; 2701 enum nl80211_radar_event event_type; 2702 2703 if (!tb[NL80211_ATTR_WIPHY_FREQ] || !tb[NL80211_ATTR_RADAR_EVENT]) 2704 return; 2705 2706 os_memset(&data, 0, sizeof(data)); 2707 data.dfs_event.freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); 2708 event_type = nla_get_u32(tb[NL80211_ATTR_RADAR_EVENT]); 2709 2710 /* Check HT params */ 2711 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { 2712 data.dfs_event.ht_enabled = 1; 2713 data.dfs_event.chan_offset = 0; 2714 2715 switch (nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])) { 2716 case NL80211_CHAN_NO_HT: 2717 data.dfs_event.ht_enabled = 0; 2718 break; 2719 case NL80211_CHAN_HT20: 2720 break; 2721 case NL80211_CHAN_HT40PLUS: 2722 data.dfs_event.chan_offset = 1; 2723 break; 2724 case NL80211_CHAN_HT40MINUS: 2725 data.dfs_event.chan_offset = -1; 2726 break; 2727 } 2728 } 2729 2730 /* Get VHT params */ 2731 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) 2732 data.dfs_event.chan_width = 2733 convert2width(nla_get_u32( 2734 tb[NL80211_ATTR_CHANNEL_WIDTH])); 2735 if (tb[NL80211_ATTR_CENTER_FREQ1]) 2736 data.dfs_event.cf1 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); 2737 if (tb[NL80211_ATTR_CENTER_FREQ2]) 2738 data.dfs_event.cf2 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); 2739 2740 wpa_printf(MSG_DEBUG, "nl80211: DFS event on freq %d MHz, ht: %d, offset: %d, width: %d, cf1: %dMHz, cf2: %dMHz", 2741 data.dfs_event.freq, data.dfs_event.ht_enabled, 2742 data.dfs_event.chan_offset, data.dfs_event.chan_width, 2743 data.dfs_event.cf1, data.dfs_event.cf2); 2744 2745 switch (event_type) { 2746 case NL80211_RADAR_DETECTED: 2747 wpa_supplicant_event(drv->ctx, EVENT_DFS_RADAR_DETECTED, &data); 2748 break; 2749 case NL80211_RADAR_CAC_FINISHED: 2750 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_FINISHED, &data); 2751 break; 2752 case NL80211_RADAR_CAC_ABORTED: 2753 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_ABORTED, &data); 2754 break; 2755 case NL80211_RADAR_NOP_FINISHED: 2756 wpa_supplicant_event(drv->ctx, EVENT_DFS_NOP_FINISHED, &data); 2757 break; 2758 default: 2759 wpa_printf(MSG_DEBUG, "nl80211: Unknown radar event %d " 2760 "received", event_type); 2761 break; 2762 } 2763} 2764 2765 2766static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb, 2767 int wds) 2768{ 2769 struct wpa_driver_nl80211_data *drv = bss->drv; 2770 union wpa_event_data event; 2771 2772 if (!tb[NL80211_ATTR_MAC]) 2773 return; 2774 2775 os_memset(&event, 0, sizeof(event)); 2776 event.rx_from_unknown.bssid = bss->addr; 2777 event.rx_from_unknown.addr = nla_data(tb[NL80211_ATTR_MAC]); 2778 event.rx_from_unknown.wds = wds; 2779 2780 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 2781} 2782 2783 2784static void qca_nl80211_avoid_freq(struct wpa_driver_nl80211_data *drv, 2785 const u8 *data, size_t len) 2786{ 2787 u32 i, count; 2788 union wpa_event_data event; 2789 struct wpa_freq_range *range = NULL; 2790 const struct qca_avoid_freq_list *freq_range; 2791 2792 freq_range = (const struct qca_avoid_freq_list *) data; 2793 if (len < sizeof(freq_range->count)) 2794 return; 2795 2796 count = freq_range->count; 2797 if (len < sizeof(freq_range->count) + 2798 count * sizeof(struct qca_avoid_freq_range)) { 2799 wpa_printf(MSG_DEBUG, "nl80211: Ignored too short avoid frequency list (len=%u)", 2800 (unsigned int) len); 2801 return; 2802 } 2803 2804 if (count > 0) { 2805 range = os_calloc(count, sizeof(struct wpa_freq_range)); 2806 if (range == NULL) 2807 return; 2808 } 2809 2810 os_memset(&event, 0, sizeof(event)); 2811 for (i = 0; i < count; i++) { 2812 unsigned int idx = event.freq_range.num; 2813 range[idx].min = freq_range->range[i].start_freq; 2814 range[idx].max = freq_range->range[i].end_freq; 2815 wpa_printf(MSG_DEBUG, "nl80211: Avoid frequency range: %u-%u", 2816 range[idx].min, range[idx].max); 2817 if (range[idx].min > range[idx].max) { 2818 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid frequency range"); 2819 continue; 2820 } 2821 event.freq_range.num++; 2822 } 2823 event.freq_range.range = range; 2824 2825 wpa_supplicant_event(drv->ctx, EVENT_AVOID_FREQUENCIES, &event); 2826 2827 os_free(range); 2828} 2829 2830 2831static void nl80211_vendor_event_qca(struct wpa_driver_nl80211_data *drv, 2832 u32 subcmd, u8 *data, size_t len) 2833{ 2834 switch (subcmd) { 2835 case QCA_NL80211_VENDOR_SUBCMD_AVOID_FREQUENCY: 2836 qca_nl80211_avoid_freq(drv, data, len); 2837 break; 2838 default: 2839 wpa_printf(MSG_DEBUG, 2840 "nl80211: Ignore unsupported QCA vendor event %u", 2841 subcmd); 2842 break; 2843 } 2844} 2845 2846 2847static void nl80211_vendor_event(struct wpa_driver_nl80211_data *drv, 2848 struct nlattr **tb) 2849{ 2850 u32 vendor_id, subcmd, wiphy = 0; 2851 int wiphy_idx; 2852 u8 *data = NULL; 2853 size_t len = 0; 2854 2855 if (!tb[NL80211_ATTR_VENDOR_ID] || 2856 !tb[NL80211_ATTR_VENDOR_SUBCMD]) 2857 return; 2858 2859 vendor_id = nla_get_u32(tb[NL80211_ATTR_VENDOR_ID]); 2860 subcmd = nla_get_u32(tb[NL80211_ATTR_VENDOR_SUBCMD]); 2861 2862 if (tb[NL80211_ATTR_WIPHY]) 2863 wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]); 2864 2865 wpa_printf(MSG_DEBUG, "nl80211: Vendor event: wiphy=%u vendor_id=0x%x subcmd=%u", 2866 wiphy, vendor_id, subcmd); 2867 2868 if (tb[NL80211_ATTR_VENDOR_DATA]) { 2869 data = nla_data(tb[NL80211_ATTR_VENDOR_DATA]); 2870 len = nla_len(tb[NL80211_ATTR_VENDOR_DATA]); 2871 wpa_hexdump(MSG_MSGDUMP, "nl80211: Vendor data", data, len); 2872 } 2873 2874 wiphy_idx = nl80211_get_wiphy_index(drv->first_bss); 2875 if (wiphy_idx >= 0 && wiphy_idx != (int) wiphy) { 2876 wpa_printf(MSG_DEBUG, "nl80211: Ignore vendor event for foreign wiphy %u (own: %d)", 2877 wiphy, wiphy_idx); 2878 return; 2879 } 2880 2881 switch (vendor_id) { 2882 case OUI_QCA: 2883 nl80211_vendor_event_qca(drv, subcmd, data, len); 2884 break; 2885 default: 2886 wpa_printf(MSG_DEBUG, "nl80211: Ignore unsupported vendor event"); 2887 break; 2888 } 2889} 2890 2891 2892static void nl80211_reg_change_event(struct wpa_driver_nl80211_data *drv, 2893 struct nlattr *tb[]) 2894{ 2895 union wpa_event_data data; 2896 enum nl80211_reg_initiator init; 2897 2898 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change"); 2899 2900 if (tb[NL80211_ATTR_REG_INITIATOR] == NULL) 2901 return; 2902 2903 os_memset(&data, 0, sizeof(data)); 2904 init = nla_get_u8(tb[NL80211_ATTR_REG_INITIATOR]); 2905 wpa_printf(MSG_DEBUG, " * initiator=%d", init); 2906 switch (init) { 2907 case NL80211_REGDOM_SET_BY_CORE: 2908 data.channel_list_changed.initiator = REGDOM_SET_BY_CORE; 2909 break; 2910 case NL80211_REGDOM_SET_BY_USER: 2911 data.channel_list_changed.initiator = REGDOM_SET_BY_USER; 2912 break; 2913 case NL80211_REGDOM_SET_BY_DRIVER: 2914 data.channel_list_changed.initiator = REGDOM_SET_BY_DRIVER; 2915 break; 2916 case NL80211_REGDOM_SET_BY_COUNTRY_IE: 2917 data.channel_list_changed.initiator = REGDOM_SET_BY_COUNTRY_IE; 2918 break; 2919 } 2920 2921 if (tb[NL80211_ATTR_REG_TYPE]) { 2922 enum nl80211_reg_type type; 2923 type = nla_get_u8(tb[NL80211_ATTR_REG_TYPE]); 2924 wpa_printf(MSG_DEBUG, " * type=%d", type); 2925 switch (type) { 2926 case NL80211_REGDOM_TYPE_COUNTRY: 2927 data.channel_list_changed.type = REGDOM_TYPE_COUNTRY; 2928 break; 2929 case NL80211_REGDOM_TYPE_WORLD: 2930 data.channel_list_changed.type = REGDOM_TYPE_WORLD; 2931 break; 2932 case NL80211_REGDOM_TYPE_CUSTOM_WORLD: 2933 data.channel_list_changed.type = 2934 REGDOM_TYPE_CUSTOM_WORLD; 2935 break; 2936 case NL80211_REGDOM_TYPE_INTERSECTION: 2937 data.channel_list_changed.type = 2938 REGDOM_TYPE_INTERSECTION; 2939 break; 2940 } 2941 } 2942 2943 if (tb[NL80211_ATTR_REG_ALPHA2]) { 2944 os_strlcpy(data.channel_list_changed.alpha2, 2945 nla_get_string(tb[NL80211_ATTR_REG_ALPHA2]), 2946 sizeof(data.channel_list_changed.alpha2)); 2947 wpa_printf(MSG_DEBUG, " * alpha2=%s", 2948 data.channel_list_changed.alpha2); 2949 } 2950 2951 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, &data); 2952} 2953 2954 2955static void do_process_drv_event(struct i802_bss *bss, int cmd, 2956 struct nlattr **tb) 2957{ 2958 struct wpa_driver_nl80211_data *drv = bss->drv; 2959 union wpa_event_data data; 2960 2961 wpa_printf(MSG_DEBUG, "nl80211: Drv Event %d (%s) received for %s", 2962 cmd, nl80211_command_to_string(cmd), bss->ifname); 2963 2964 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED && 2965 (cmd == NL80211_CMD_NEW_SCAN_RESULTS || 2966 cmd == NL80211_CMD_SCAN_ABORTED)) { 2967 wpa_driver_nl80211_set_mode(drv->first_bss, 2968 drv->ap_scan_as_station); 2969 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 2970 } 2971 2972 switch (cmd) { 2973 case NL80211_CMD_TRIGGER_SCAN: 2974 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan trigger"); 2975 drv->scan_state = SCAN_STARTED; 2976 if (drv->scan_for_auth) { 2977 /* 2978 * Cannot indicate EVENT_SCAN_STARTED here since we skip 2979 * EVENT_SCAN_RESULTS in scan_for_auth case and the 2980 * upper layer implementation could get confused about 2981 * scanning state. 2982 */ 2983 wpa_printf(MSG_DEBUG, "nl80211: Do not indicate scan-start event due to internal scan_for_auth"); 2984 break; 2985 } 2986 wpa_supplicant_event(drv->ctx, EVENT_SCAN_STARTED, NULL); 2987 break; 2988 case NL80211_CMD_START_SCHED_SCAN: 2989 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan started"); 2990 drv->scan_state = SCHED_SCAN_STARTED; 2991 break; 2992 case NL80211_CMD_SCHED_SCAN_STOPPED: 2993 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan stopped"); 2994 drv->scan_state = SCHED_SCAN_STOPPED; 2995 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL); 2996 break; 2997 case NL80211_CMD_NEW_SCAN_RESULTS: 2998 wpa_dbg(drv->ctx, MSG_DEBUG, 2999 "nl80211: New scan results available"); 3000 drv->scan_state = SCAN_COMPLETED; 3001 drv->scan_complete_events = 1; 3002 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 3003 drv->ctx); 3004 send_scan_event(drv, 0, tb); 3005 break; 3006 case NL80211_CMD_SCHED_SCAN_RESULTS: 3007 wpa_dbg(drv->ctx, MSG_DEBUG, 3008 "nl80211: New sched scan results available"); 3009 drv->scan_state = SCHED_SCAN_RESULTS; 3010 send_scan_event(drv, 0, tb); 3011 break; 3012 case NL80211_CMD_SCAN_ABORTED: 3013 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan aborted"); 3014 drv->scan_state = SCAN_ABORTED; 3015 /* 3016 * Need to indicate that scan results are available in order 3017 * not to make wpa_supplicant stop its scanning. 3018 */ 3019 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 3020 drv->ctx); 3021 send_scan_event(drv, 1, tb); 3022 break; 3023 case NL80211_CMD_AUTHENTICATE: 3024 case NL80211_CMD_ASSOCIATE: 3025 case NL80211_CMD_DEAUTHENTICATE: 3026 case NL80211_CMD_DISASSOCIATE: 3027 case NL80211_CMD_FRAME_TX_STATUS: 3028 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 3029 case NL80211_CMD_UNPROT_DISASSOCIATE: 3030 mlme_event(bss, cmd, tb[NL80211_ATTR_FRAME], 3031 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 3032 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 3033 tb[NL80211_ATTR_COOKIE], 3034 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 3035 break; 3036 case NL80211_CMD_CONNECT: 3037 case NL80211_CMD_ROAM: 3038 mlme_event_connect(drv, cmd, 3039 tb[NL80211_ATTR_STATUS_CODE], 3040 tb[NL80211_ATTR_MAC], 3041 tb[NL80211_ATTR_REQ_IE], 3042 tb[NL80211_ATTR_RESP_IE]); 3043 break; 3044 case NL80211_CMD_CH_SWITCH_NOTIFY: 3045 mlme_event_ch_switch(drv, 3046 tb[NL80211_ATTR_IFINDEX], 3047 tb[NL80211_ATTR_WIPHY_FREQ], 3048 tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE], 3049 tb[NL80211_ATTR_CHANNEL_WIDTH], 3050 tb[NL80211_ATTR_CENTER_FREQ1], 3051 tb[NL80211_ATTR_CENTER_FREQ2]); 3052 break; 3053 case NL80211_CMD_DISCONNECT: 3054 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE], 3055 tb[NL80211_ATTR_MAC], 3056 tb[NL80211_ATTR_DISCONNECTED_BY_AP]); 3057 break; 3058 case NL80211_CMD_MICHAEL_MIC_FAILURE: 3059 mlme_event_michael_mic_failure(bss, tb); 3060 break; 3061 case NL80211_CMD_JOIN_IBSS: 3062 mlme_event_join_ibss(drv, tb); 3063 break; 3064 case NL80211_CMD_REMAIN_ON_CHANNEL: 3065 mlme_event_remain_on_channel(drv, 0, tb); 3066 break; 3067 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL: 3068 mlme_event_remain_on_channel(drv, 1, tb); 3069 break; 3070 case NL80211_CMD_NOTIFY_CQM: 3071 nl80211_cqm_event(drv, tb); 3072 break; 3073 case NL80211_CMD_REG_CHANGE: 3074 nl80211_reg_change_event(drv, tb); 3075 break; 3076 case NL80211_CMD_REG_BEACON_HINT: 3077 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint"); 3078 os_memset(&data, 0, sizeof(data)); 3079 data.channel_list_changed.initiator = REGDOM_BEACON_HINT; 3080 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 3081 &data); 3082 break; 3083 case NL80211_CMD_NEW_STATION: 3084 nl80211_new_station_event(drv, tb); 3085 break; 3086 case NL80211_CMD_DEL_STATION: 3087 nl80211_del_station_event(drv, tb); 3088 break; 3089 case NL80211_CMD_SET_REKEY_OFFLOAD: 3090 nl80211_rekey_offload_event(drv, tb); 3091 break; 3092 case NL80211_CMD_PMKSA_CANDIDATE: 3093 nl80211_pmksa_candidate_event(drv, tb); 3094 break; 3095 case NL80211_CMD_PROBE_CLIENT: 3096 nl80211_client_probe_event(drv, tb); 3097 break; 3098 case NL80211_CMD_TDLS_OPER: 3099 nl80211_tdls_oper_event(drv, tb); 3100 break; 3101 case NL80211_CMD_CONN_FAILED: 3102 nl80211_connect_failed_event(drv, tb); 3103 break; 3104 case NL80211_CMD_FT_EVENT: 3105 mlme_event_ft_event(drv, tb); 3106 break; 3107 case NL80211_CMD_RADAR_DETECT: 3108 nl80211_radar_event(drv, tb); 3109 break; 3110 case NL80211_CMD_STOP_AP: 3111 nl80211_stop_ap(drv, tb); 3112 break; 3113 case NL80211_CMD_VENDOR: 3114 nl80211_vendor_event(drv, tb); 3115 break; 3116 default: 3117 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Ignored unknown event " 3118 "(cmd=%d)", cmd); 3119 break; 3120 } 3121} 3122 3123 3124static int process_drv_event(struct nl_msg *msg, void *arg) 3125{ 3126 struct wpa_driver_nl80211_data *drv = arg; 3127 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3128 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3129 struct i802_bss *bss; 3130 int ifidx = -1; 3131 3132 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3133 genlmsg_attrlen(gnlh, 0), NULL); 3134 3135 if (tb[NL80211_ATTR_IFINDEX]) { 3136 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 3137 3138 for (bss = drv->first_bss; bss; bss = bss->next) 3139 if (ifidx == -1 || ifidx == bss->ifindex) { 3140 do_process_drv_event(bss, gnlh->cmd, tb); 3141 return NL_SKIP; 3142 } 3143 wpa_printf(MSG_DEBUG, 3144 "nl80211: Ignored event (cmd=%d) for foreign interface (ifindex %d)", 3145 gnlh->cmd, ifidx); 3146 } else if (tb[NL80211_ATTR_WDEV]) { 3147 u64 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 3148 wpa_printf(MSG_DEBUG, "nl80211: Process event on P2P device"); 3149 for (bss = drv->first_bss; bss; bss = bss->next) { 3150 if (bss->wdev_id_set && wdev_id == bss->wdev_id) { 3151 do_process_drv_event(bss, gnlh->cmd, tb); 3152 return NL_SKIP; 3153 } 3154 } 3155 wpa_printf(MSG_DEBUG, 3156 "nl80211: Ignored event (cmd=%d) for foreign interface (wdev 0x%llx)", 3157 gnlh->cmd, (long long unsigned int) wdev_id); 3158 } 3159 3160 return NL_SKIP; 3161} 3162 3163 3164static int process_global_event(struct nl_msg *msg, void *arg) 3165{ 3166 struct nl80211_global *global = arg; 3167 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3168 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3169 struct wpa_driver_nl80211_data *drv, *tmp; 3170 int ifidx = -1; 3171 struct i802_bss *bss; 3172 u64 wdev_id = 0; 3173 int wdev_id_set = 0; 3174 3175 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3176 genlmsg_attrlen(gnlh, 0), NULL); 3177 3178 if (tb[NL80211_ATTR_IFINDEX]) 3179 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 3180 else if (tb[NL80211_ATTR_WDEV]) { 3181 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 3182 wdev_id_set = 1; 3183 } 3184 3185 dl_list_for_each_safe(drv, tmp, &global->interfaces, 3186 struct wpa_driver_nl80211_data, list) { 3187 for (bss = drv->first_bss; bss; bss = bss->next) { 3188 if ((ifidx == -1 && !wdev_id_set) || 3189 ifidx == bss->ifindex || 3190 (wdev_id_set && bss->wdev_id_set && 3191 wdev_id == bss->wdev_id)) { 3192 do_process_drv_event(bss, gnlh->cmd, tb); 3193 return NL_SKIP; 3194 } 3195 } 3196 } 3197 3198 return NL_SKIP; 3199} 3200 3201 3202static int process_bss_event(struct nl_msg *msg, void *arg) 3203{ 3204 struct i802_bss *bss = arg; 3205 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3206 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3207 3208 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3209 genlmsg_attrlen(gnlh, 0), NULL); 3210 3211 wpa_printf(MSG_DEBUG, "nl80211: BSS Event %d (%s) received for %s", 3212 gnlh->cmd, nl80211_command_to_string(gnlh->cmd), 3213 bss->ifname); 3214 3215 switch (gnlh->cmd) { 3216 case NL80211_CMD_FRAME: 3217 case NL80211_CMD_FRAME_TX_STATUS: 3218 mlme_event(bss, gnlh->cmd, tb[NL80211_ATTR_FRAME], 3219 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 3220 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 3221 tb[NL80211_ATTR_COOKIE], 3222 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 3223 break; 3224 case NL80211_CMD_UNEXPECTED_FRAME: 3225 nl80211_spurious_frame(bss, tb, 0); 3226 break; 3227 case NL80211_CMD_UNEXPECTED_4ADDR_FRAME: 3228 nl80211_spurious_frame(bss, tb, 1); 3229 break; 3230 default: 3231 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event " 3232 "(cmd=%d)", gnlh->cmd); 3233 break; 3234 } 3235 3236 return NL_SKIP; 3237} 3238 3239 3240static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx, 3241 void *handle) 3242{ 3243 struct nl_cb *cb = eloop_ctx; 3244 int res; 3245 3246 wpa_printf(MSG_MSGDUMP, "nl80211: Event message available"); 3247 3248 res = nl_recvmsgs(handle, cb); 3249 if (res) { 3250 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d", 3251 __func__, res); 3252 } 3253} 3254 3255 3256/** 3257 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain 3258 * @priv: driver_nl80211 private data 3259 * @alpha2_arg: country to which to switch to 3260 * Returns: 0 on success, -1 on failure 3261 * 3262 * This asks nl80211 to set the regulatory domain for given 3263 * country ISO / IEC alpha2. 3264 */ 3265static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg) 3266{ 3267 struct i802_bss *bss = priv; 3268 struct wpa_driver_nl80211_data *drv = bss->drv; 3269 char alpha2[3]; 3270 struct nl_msg *msg; 3271 3272 msg = nlmsg_alloc(); 3273 if (!msg) 3274 return -ENOMEM; 3275 3276 alpha2[0] = alpha2_arg[0]; 3277 alpha2[1] = alpha2_arg[1]; 3278 alpha2[2] = '\0'; 3279 3280 nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG); 3281 3282 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2); 3283 if (send_and_recv_msgs(drv, msg, NULL, NULL)) 3284 return -EINVAL; 3285 return 0; 3286nla_put_failure: 3287 nlmsg_free(msg); 3288 return -EINVAL; 3289} 3290 3291 3292static int nl80211_get_country(struct nl_msg *msg, void *arg) 3293{ 3294 char *alpha2 = arg; 3295 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 3296 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3297 3298 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3299 genlmsg_attrlen(gnlh, 0), NULL); 3300 if (!tb_msg[NL80211_ATTR_REG_ALPHA2]) { 3301 wpa_printf(MSG_DEBUG, "nl80211: No country information available"); 3302 return NL_SKIP; 3303 } 3304 os_strlcpy(alpha2, nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]), 3); 3305 return NL_SKIP; 3306} 3307 3308 3309static int wpa_driver_nl80211_get_country(void *priv, char *alpha2) 3310{ 3311 struct i802_bss *bss = priv; 3312 struct wpa_driver_nl80211_data *drv = bss->drv; 3313 struct nl_msg *msg; 3314 int ret; 3315 3316 msg = nlmsg_alloc(); 3317 if (!msg) 3318 return -ENOMEM; 3319 3320 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 3321 alpha2[0] = '\0'; 3322 ret = send_and_recv_msgs(drv, msg, nl80211_get_country, alpha2); 3323 if (!alpha2[0]) 3324 ret = -1; 3325 3326 return ret; 3327} 3328 3329 3330static int protocol_feature_handler(struct nl_msg *msg, void *arg) 3331{ 3332 u32 *feat = arg; 3333 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 3334 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3335 3336 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3337 genlmsg_attrlen(gnlh, 0), NULL); 3338 3339 if (tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]) 3340 *feat = nla_get_u32(tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]); 3341 3342 return NL_SKIP; 3343} 3344 3345 3346static u32 get_nl80211_protocol_features(struct wpa_driver_nl80211_data *drv) 3347{ 3348 u32 feat = 0; 3349 struct nl_msg *msg; 3350 3351 msg = nlmsg_alloc(); 3352 if (!msg) 3353 goto nla_put_failure; 3354 3355 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_PROTOCOL_FEATURES); 3356 if (send_and_recv_msgs(drv, msg, protocol_feature_handler, &feat) == 0) 3357 return feat; 3358 3359 msg = NULL; 3360nla_put_failure: 3361 nlmsg_free(msg); 3362 return 0; 3363} 3364 3365 3366struct wiphy_info_data { 3367 struct wpa_driver_nl80211_data *drv; 3368 struct wpa_driver_capa *capa; 3369 3370 unsigned int num_multichan_concurrent; 3371 3372 unsigned int error:1; 3373 unsigned int device_ap_sme:1; 3374 unsigned int poll_command_supported:1; 3375 unsigned int data_tx_status:1; 3376 unsigned int monitor_supported:1; 3377 unsigned int auth_supported:1; 3378 unsigned int connect_supported:1; 3379 unsigned int p2p_go_supported:1; 3380 unsigned int p2p_client_supported:1; 3381 unsigned int p2p_concurrent:1; 3382 unsigned int channel_switch_supported:1; 3383 unsigned int set_qos_map_supported:1; 3384}; 3385 3386 3387static unsigned int probe_resp_offload_support(int supp_protocols) 3388{ 3389 unsigned int prot = 0; 3390 3391 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS) 3392 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS; 3393 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2) 3394 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2; 3395 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P) 3396 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P; 3397 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U) 3398 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING; 3399 3400 return prot; 3401} 3402 3403 3404static void wiphy_info_supported_iftypes(struct wiphy_info_data *info, 3405 struct nlattr *tb) 3406{ 3407 struct nlattr *nl_mode; 3408 int i; 3409 3410 if (tb == NULL) 3411 return; 3412 3413 nla_for_each_nested(nl_mode, tb, i) { 3414 switch (nla_type(nl_mode)) { 3415 case NL80211_IFTYPE_AP: 3416 info->capa->flags |= WPA_DRIVER_FLAGS_AP; 3417 break; 3418 case NL80211_IFTYPE_ADHOC: 3419 info->capa->flags |= WPA_DRIVER_FLAGS_IBSS; 3420 break; 3421 case NL80211_IFTYPE_P2P_DEVICE: 3422 info->capa->flags |= 3423 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 3424 break; 3425 case NL80211_IFTYPE_P2P_GO: 3426 info->p2p_go_supported = 1; 3427 break; 3428 case NL80211_IFTYPE_P2P_CLIENT: 3429 info->p2p_client_supported = 1; 3430 break; 3431 case NL80211_IFTYPE_MONITOR: 3432 info->monitor_supported = 1; 3433 break; 3434 } 3435 } 3436} 3437 3438 3439static int wiphy_info_iface_comb_process(struct wiphy_info_data *info, 3440 struct nlattr *nl_combi) 3441{ 3442 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB]; 3443 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT]; 3444 struct nlattr *nl_limit, *nl_mode; 3445 int err, rem_limit, rem_mode; 3446 int combination_has_p2p = 0, combination_has_mgd = 0; 3447 static struct nla_policy 3448 iface_combination_policy[NUM_NL80211_IFACE_COMB] = { 3449 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED }, 3450 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 }, 3451 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG }, 3452 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 }, 3453 [NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 }, 3454 }, 3455 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = { 3456 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED }, 3457 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 }, 3458 }; 3459 3460 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB, 3461 nl_combi, iface_combination_policy); 3462 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] || 3463 !tb_comb[NL80211_IFACE_COMB_MAXNUM] || 3464 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) 3465 return 0; /* broken combination */ 3466 3467 if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS]) 3468 info->capa->flags |= WPA_DRIVER_FLAGS_RADAR; 3469 3470 nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS], 3471 rem_limit) { 3472 err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT, 3473 nl_limit, iface_limit_policy); 3474 if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES]) 3475 return 0; /* broken combination */ 3476 3477 nla_for_each_nested(nl_mode, 3478 tb_limit[NL80211_IFACE_LIMIT_TYPES], 3479 rem_mode) { 3480 int ift = nla_type(nl_mode); 3481 if (ift == NL80211_IFTYPE_P2P_GO || 3482 ift == NL80211_IFTYPE_P2P_CLIENT) 3483 combination_has_p2p = 1; 3484 if (ift == NL80211_IFTYPE_STATION) 3485 combination_has_mgd = 1; 3486 } 3487 if (combination_has_p2p && combination_has_mgd) 3488 break; 3489 } 3490 3491 if (combination_has_p2p && combination_has_mgd) { 3492 unsigned int num_channels = 3493 nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]); 3494 3495 info->p2p_concurrent = 1; 3496 if (info->num_multichan_concurrent < num_channels) 3497 info->num_multichan_concurrent = num_channels; 3498 } 3499 3500 return 0; 3501} 3502 3503 3504static void wiphy_info_iface_comb(struct wiphy_info_data *info, 3505 struct nlattr *tb) 3506{ 3507 struct nlattr *nl_combi; 3508 int rem_combi; 3509 3510 if (tb == NULL) 3511 return; 3512 3513 nla_for_each_nested(nl_combi, tb, rem_combi) { 3514 if (wiphy_info_iface_comb_process(info, nl_combi) > 0) 3515 break; 3516 } 3517} 3518 3519 3520static void wiphy_info_supp_cmds(struct wiphy_info_data *info, 3521 struct nlattr *tb) 3522{ 3523 struct nlattr *nl_cmd; 3524 int i; 3525 3526 if (tb == NULL) 3527 return; 3528 3529 nla_for_each_nested(nl_cmd, tb, i) { 3530 switch (nla_get_u32(nl_cmd)) { 3531 case NL80211_CMD_AUTHENTICATE: 3532 info->auth_supported = 1; 3533 break; 3534 case NL80211_CMD_CONNECT: 3535 info->connect_supported = 1; 3536 break; 3537 case NL80211_CMD_START_SCHED_SCAN: 3538 info->capa->sched_scan_supported = 1; 3539 break; 3540 case NL80211_CMD_PROBE_CLIENT: 3541 info->poll_command_supported = 1; 3542 break; 3543 case NL80211_CMD_CHANNEL_SWITCH: 3544 info->channel_switch_supported = 1; 3545 break; 3546 case NL80211_CMD_SET_QOS_MAP: 3547 info->set_qos_map_supported = 1; 3548 break; 3549 } 3550 } 3551} 3552 3553 3554static void wiphy_info_cipher_suites(struct wiphy_info_data *info, 3555 struct nlattr *tb) 3556{ 3557 int i, num; 3558 u32 *ciphers; 3559 3560 if (tb == NULL) 3561 return; 3562 3563 num = nla_len(tb) / sizeof(u32); 3564 ciphers = nla_data(tb); 3565 for (i = 0; i < num; i++) { 3566 u32 c = ciphers[i]; 3567 3568 wpa_printf(MSG_DEBUG, "nl80211: Supported cipher %02x-%02x-%02x:%d", 3569 c >> 24, (c >> 16) & 0xff, 3570 (c >> 8) & 0xff, c & 0xff); 3571 switch (c) { 3572 case WLAN_CIPHER_SUITE_CCMP_256: 3573 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP_256; 3574 break; 3575 case WLAN_CIPHER_SUITE_GCMP_256: 3576 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP_256; 3577 break; 3578 case WLAN_CIPHER_SUITE_CCMP: 3579 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP; 3580 break; 3581 case WLAN_CIPHER_SUITE_GCMP: 3582 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP; 3583 break; 3584 case WLAN_CIPHER_SUITE_TKIP: 3585 info->capa->enc |= WPA_DRIVER_CAPA_ENC_TKIP; 3586 break; 3587 case WLAN_CIPHER_SUITE_WEP104: 3588 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP104; 3589 break; 3590 case WLAN_CIPHER_SUITE_WEP40: 3591 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP40; 3592 break; 3593 case WLAN_CIPHER_SUITE_AES_CMAC: 3594 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP; 3595 break; 3596 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 3597 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_128; 3598 break; 3599 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 3600 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_256; 3601 break; 3602 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 3603 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_CMAC_256; 3604 break; 3605 case WLAN_CIPHER_SUITE_NO_GROUP_ADDR: 3606 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GTK_NOT_USED; 3607 break; 3608 } 3609 } 3610} 3611 3612 3613static void wiphy_info_max_roc(struct wpa_driver_capa *capa, 3614 struct nlattr *tb) 3615{ 3616 if (tb) 3617 capa->max_remain_on_chan = nla_get_u32(tb); 3618} 3619 3620 3621static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls, 3622 struct nlattr *ext_setup) 3623{ 3624 if (tdls == NULL) 3625 return; 3626 3627 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported"); 3628 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT; 3629 3630 if (ext_setup) { 3631 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup"); 3632 capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP; 3633 } 3634} 3635 3636 3637static void wiphy_info_feature_flags(struct wiphy_info_data *info, 3638 struct nlattr *tb) 3639{ 3640 u32 flags; 3641 struct wpa_driver_capa *capa = info->capa; 3642 3643 if (tb == NULL) 3644 return; 3645 3646 flags = nla_get_u32(tb); 3647 3648 if (flags & NL80211_FEATURE_SK_TX_STATUS) 3649 info->data_tx_status = 1; 3650 3651 if (flags & NL80211_FEATURE_INACTIVITY_TIMER) 3652 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER; 3653 3654 if (flags & NL80211_FEATURE_SAE) 3655 capa->flags |= WPA_DRIVER_FLAGS_SAE; 3656 3657 if (flags & NL80211_FEATURE_NEED_OBSS_SCAN) 3658 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN; 3659} 3660 3661 3662static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa, 3663 struct nlattr *tb) 3664{ 3665 u32 protocols; 3666 3667 if (tb == NULL) 3668 return; 3669 3670 protocols = nla_get_u32(tb); 3671 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP " 3672 "mode"); 3673 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD; 3674 capa->probe_resp_offloads = probe_resp_offload_support(protocols); 3675} 3676 3677 3678static int wiphy_info_handler(struct nl_msg *msg, void *arg) 3679{ 3680 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3681 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3682 struct wiphy_info_data *info = arg; 3683 struct wpa_driver_capa *capa = info->capa; 3684 struct wpa_driver_nl80211_data *drv = info->drv; 3685 3686 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3687 genlmsg_attrlen(gnlh, 0), NULL); 3688 3689 if (tb[NL80211_ATTR_WIPHY_NAME]) 3690 os_strlcpy(drv->phyname, 3691 nla_get_string(tb[NL80211_ATTR_WIPHY_NAME]), 3692 sizeof(drv->phyname)); 3693 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]) 3694 capa->max_scan_ssids = 3695 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]); 3696 3697 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]) 3698 capa->max_sched_scan_ssids = 3699 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]); 3700 3701 if (tb[NL80211_ATTR_MAX_MATCH_SETS]) 3702 capa->max_match_sets = 3703 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]); 3704 3705 if (tb[NL80211_ATTR_MAC_ACL_MAX]) 3706 capa->max_acl_mac_addrs = 3707 nla_get_u8(tb[NL80211_ATTR_MAC_ACL_MAX]); 3708 3709 wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]); 3710 wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]); 3711 wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]); 3712 wiphy_info_cipher_suites(info, tb[NL80211_ATTR_CIPHER_SUITES]); 3713 3714 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) { 3715 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based " 3716 "off-channel TX"); 3717 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX; 3718 } 3719 3720 if (tb[NL80211_ATTR_ROAM_SUPPORT]) { 3721 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming"); 3722 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION; 3723 } 3724 3725 wiphy_info_max_roc(capa, 3726 tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]); 3727 3728 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD]) 3729 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD; 3730 3731 wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT], 3732 tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]); 3733 3734 if (tb[NL80211_ATTR_DEVICE_AP_SME]) 3735 info->device_ap_sme = 1; 3736 3737 wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]); 3738 wiphy_info_probe_resp_offload(capa, 3739 tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]); 3740 3741 if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] && 3742 drv->extended_capa == NULL) { 3743 drv->extended_capa = 3744 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3745 if (drv->extended_capa) { 3746 os_memcpy(drv->extended_capa, 3747 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 3748 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3749 drv->extended_capa_len = 3750 nla_len(tb[NL80211_ATTR_EXT_CAPA]); 3751 } 3752 drv->extended_capa_mask = 3753 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3754 if (drv->extended_capa_mask) { 3755 os_memcpy(drv->extended_capa_mask, 3756 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 3757 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3758 } else { 3759 os_free(drv->extended_capa); 3760 drv->extended_capa = NULL; 3761 drv->extended_capa_len = 0; 3762 } 3763 } 3764 3765 if (tb[NL80211_ATTR_VENDOR_DATA]) { 3766 struct nlattr *nl; 3767 int rem; 3768 3769 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_DATA], rem) { 3770 struct nl80211_vendor_cmd_info *vinfo; 3771 if (nla_len(nl) != sizeof(*vinfo)) { 3772 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info"); 3773 continue; 3774 } 3775 vinfo = nla_data(nl); 3776 if (vinfo->subcmd == 3777 QCA_NL80211_VENDOR_SUBCMD_DFS_CAPABILITY) 3778 drv->dfs_vendor_cmd_avail = 1; 3779 3780 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor command: vendor_id=0x%x subcmd=%u", 3781 vinfo->vendor_id, vinfo->subcmd); 3782 } 3783 } 3784 3785 if (tb[NL80211_ATTR_VENDOR_EVENTS]) { 3786 struct nlattr *nl; 3787 int rem; 3788 3789 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_EVENTS], rem) { 3790 struct nl80211_vendor_cmd_info *vinfo; 3791 if (nla_len(nl) != sizeof(*vinfo)) { 3792 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info"); 3793 continue; 3794 } 3795 vinfo = nla_data(nl); 3796 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor event: vendor_id=0x%x subcmd=%u", 3797 vinfo->vendor_id, vinfo->subcmd); 3798 } 3799 } 3800 3801 return NL_SKIP; 3802} 3803 3804 3805static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv, 3806 struct wiphy_info_data *info) 3807{ 3808 u32 feat; 3809 struct nl_msg *msg; 3810 3811 os_memset(info, 0, sizeof(*info)); 3812 info->capa = &drv->capa; 3813 info->drv = drv; 3814 3815 msg = nlmsg_alloc(); 3816 if (!msg) 3817 return -1; 3818 3819 feat = get_nl80211_protocol_features(drv); 3820 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 3821 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 3822 else 3823 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 3824 3825 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 3826 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 3827 goto nla_put_failure; 3828 3829 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info)) 3830 return -1; 3831 3832 if (info->auth_supported) 3833 drv->capa.flags |= WPA_DRIVER_FLAGS_SME; 3834 else if (!info->connect_supported) { 3835 wpa_printf(MSG_INFO, "nl80211: Driver does not support " 3836 "authentication/association or connect commands"); 3837 info->error = 1; 3838 } 3839 3840 if (info->p2p_go_supported && info->p2p_client_supported) 3841 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE; 3842 if (info->p2p_concurrent) { 3843 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 3844 "interface (driver advertised support)"); 3845 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 3846 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 3847 } 3848 if (info->num_multichan_concurrent > 1) { 3849 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel " 3850 "concurrent (driver advertised support)"); 3851 drv->capa.num_multichan_concurrent = 3852 info->num_multichan_concurrent; 3853 } 3854 3855 /* default to 5000 since early versions of mac80211 don't set it */ 3856 if (!drv->capa.max_remain_on_chan) 3857 drv->capa.max_remain_on_chan = 5000; 3858 3859 if (info->channel_switch_supported) 3860 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_CSA; 3861 3862 return 0; 3863nla_put_failure: 3864 nlmsg_free(msg); 3865 return -1; 3866} 3867 3868 3869static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv) 3870{ 3871 struct wiphy_info_data info; 3872 if (wpa_driver_nl80211_get_info(drv, &info)) 3873 return -1; 3874 3875 if (info.error) 3876 return -1; 3877 3878 drv->has_capability = 1; 3879 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA | 3880 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK | 3881 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 | 3882 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK; 3883 drv->capa.auth = WPA_DRIVER_AUTH_OPEN | 3884 WPA_DRIVER_AUTH_SHARED | 3885 WPA_DRIVER_AUTH_LEAP; 3886 3887 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES; 3888 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE; 3889 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3890 3891 /* 3892 * As all cfg80211 drivers must support cases where the AP interface is 3893 * removed without the knowledge of wpa_supplicant/hostapd, e.g., in 3894 * case that the user space daemon has crashed, they must be able to 3895 * cleanup all stations and key entries in the AP tear down flow. Thus, 3896 * this flag can/should always be set for cfg80211 drivers. 3897 */ 3898 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT; 3899 3900 if (!info.device_ap_sme) { 3901 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS; 3902 3903 /* 3904 * No AP SME is currently assumed to also indicate no AP MLME 3905 * in the driver/firmware. 3906 */ 3907 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME; 3908 } 3909 3910 drv->device_ap_sme = info.device_ap_sme; 3911 drv->poll_command_supported = info.poll_command_supported; 3912 drv->data_tx_status = info.data_tx_status; 3913 if (info.set_qos_map_supported) 3914 drv->capa.flags |= WPA_DRIVER_FLAGS_QOS_MAPPING; 3915 3916 /* 3917 * If poll command and tx status are supported, mac80211 is new enough 3918 * to have everything we need to not need monitor interfaces. 3919 */ 3920 drv->use_monitor = !info.poll_command_supported || !info.data_tx_status; 3921 3922 if (drv->device_ap_sme && drv->use_monitor) { 3923 /* 3924 * Non-mac80211 drivers may not support monitor interface. 3925 * Make sure we do not get stuck with incorrect capability here 3926 * by explicitly testing this. 3927 */ 3928 if (!info.monitor_supported) { 3929 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor " 3930 "with device_ap_sme since no monitor mode " 3931 "support detected"); 3932 drv->use_monitor = 0; 3933 } 3934 } 3935 3936 /* 3937 * If we aren't going to use monitor interfaces, but the 3938 * driver doesn't support data TX status, we won't get TX 3939 * status for EAPOL frames. 3940 */ 3941 if (!drv->use_monitor && !info.data_tx_status) 3942 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3943 3944 return 0; 3945} 3946 3947 3948#ifdef ANDROID 3949static int android_genl_ctrl_resolve(struct nl_handle *handle, 3950 const char *name) 3951{ 3952 /* 3953 * Android ICS has very minimal genl_ctrl_resolve() implementation, so 3954 * need to work around that. 3955 */ 3956 struct nl_cache *cache = NULL; 3957 struct genl_family *nl80211 = NULL; 3958 int id = -1; 3959 3960 if (genl_ctrl_alloc_cache(handle, &cache) < 0) { 3961 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic " 3962 "netlink cache"); 3963 goto fail; 3964 } 3965 3966 nl80211 = genl_ctrl_search_by_name(cache, name); 3967 if (nl80211 == NULL) 3968 goto fail; 3969 3970 id = genl_family_get_id(nl80211); 3971 3972fail: 3973 if (nl80211) 3974 genl_family_put(nl80211); 3975 if (cache) 3976 nl_cache_free(cache); 3977 3978 return id; 3979} 3980#define genl_ctrl_resolve android_genl_ctrl_resolve 3981#endif /* ANDROID */ 3982 3983 3984static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global) 3985{ 3986 int ret; 3987 3988 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3989 if (global->nl_cb == NULL) { 3990 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " 3991 "callbacks"); 3992 return -1; 3993 } 3994 3995 global->nl = nl_create_handle(global->nl_cb, "nl"); 3996 if (global->nl == NULL) 3997 goto err; 3998 3999 global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211"); 4000 if (global->nl80211_id < 0) { 4001 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not " 4002 "found"); 4003 goto err; 4004 } 4005 4006 global->nl_event = nl_create_handle(global->nl_cb, "event"); 4007 if (global->nl_event == NULL) 4008 goto err; 4009 4010 ret = nl_get_multicast_id(global, "nl80211", "scan"); 4011 if (ret >= 0) 4012 ret = nl_socket_add_membership(global->nl_event, ret); 4013 if (ret < 0) { 4014 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 4015 "membership for scan events: %d (%s)", 4016 ret, strerror(-ret)); 4017 goto err; 4018 } 4019 4020 ret = nl_get_multicast_id(global, "nl80211", "mlme"); 4021 if (ret >= 0) 4022 ret = nl_socket_add_membership(global->nl_event, ret); 4023 if (ret < 0) { 4024 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 4025 "membership for mlme events: %d (%s)", 4026 ret, strerror(-ret)); 4027 goto err; 4028 } 4029 4030 ret = nl_get_multicast_id(global, "nl80211", "regulatory"); 4031 if (ret >= 0) 4032 ret = nl_socket_add_membership(global->nl_event, ret); 4033 if (ret < 0) { 4034 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " 4035 "membership for regulatory events: %d (%s)", 4036 ret, strerror(-ret)); 4037 /* Continue without regulatory events */ 4038 } 4039 4040 ret = nl_get_multicast_id(global, "nl80211", "vendor"); 4041 if (ret >= 0) 4042 ret = nl_socket_add_membership(global->nl_event, ret); 4043 if (ret < 0) { 4044 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " 4045 "membership for vendor events: %d (%s)", 4046 ret, strerror(-ret)); 4047 /* Continue without vendor events */ 4048 } 4049 4050 nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 4051 no_seq_check, NULL); 4052 nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 4053 process_global_event, global); 4054 4055 nl80211_register_eloop_read(&global->nl_event, 4056 wpa_driver_nl80211_event_receive, 4057 global->nl_cb); 4058 4059 return 0; 4060 4061err: 4062 nl_destroy_handles(&global->nl_event); 4063 nl_destroy_handles(&global->nl); 4064 nl_cb_put(global->nl_cb); 4065 global->nl_cb = NULL; 4066 return -1; 4067} 4068 4069 4070static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv) 4071{ 4072 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 4073 if (!drv->nl_cb) { 4074 wpa_printf(MSG_ERROR, "nl80211: Failed to alloc cb struct"); 4075 return -1; 4076 } 4077 4078 nl_cb_set(drv->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 4079 no_seq_check, NULL); 4080 nl_cb_set(drv->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 4081 process_drv_event, drv); 4082 4083 return 0; 4084} 4085 4086 4087static void wpa_driver_nl80211_rfkill_blocked(void *ctx) 4088{ 4089 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked"); 4090 /* 4091 * This may be for any interface; use ifdown event to disable 4092 * interface. 4093 */ 4094} 4095 4096 4097static void wpa_driver_nl80211_rfkill_unblocked(void *ctx) 4098{ 4099 struct wpa_driver_nl80211_data *drv = ctx; 4100 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked"); 4101 if (i802_set_iface_flags(drv->first_bss, 1)) { 4102 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP " 4103 "after rfkill unblock"); 4104 return; 4105 } 4106 /* rtnetlink ifup handler will report interface as enabled */ 4107} 4108 4109 4110static void wpa_driver_nl80211_handle_eapol_tx_status(int sock, 4111 void *eloop_ctx, 4112 void *handle) 4113{ 4114 struct wpa_driver_nl80211_data *drv = eloop_ctx; 4115 u8 data[2048]; 4116 struct msghdr msg; 4117 struct iovec entry; 4118 u8 control[512]; 4119 struct cmsghdr *cmsg; 4120 int res, found_ee = 0, found_wifi = 0, acked = 0; 4121 union wpa_event_data event; 4122 4123 memset(&msg, 0, sizeof(msg)); 4124 msg.msg_iov = &entry; 4125 msg.msg_iovlen = 1; 4126 entry.iov_base = data; 4127 entry.iov_len = sizeof(data); 4128 msg.msg_control = &control; 4129 msg.msg_controllen = sizeof(control); 4130 4131 res = recvmsg(sock, &msg, MSG_ERRQUEUE); 4132 /* if error or not fitting 802.3 header, return */ 4133 if (res < 14) 4134 return; 4135 4136 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) 4137 { 4138 if (cmsg->cmsg_level == SOL_SOCKET && 4139 cmsg->cmsg_type == SCM_WIFI_STATUS) { 4140 int *ack; 4141 4142 found_wifi = 1; 4143 ack = (void *)CMSG_DATA(cmsg); 4144 acked = *ack; 4145 } 4146 4147 if (cmsg->cmsg_level == SOL_PACKET && 4148 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) { 4149 struct sock_extended_err *err = 4150 (struct sock_extended_err *)CMSG_DATA(cmsg); 4151 4152 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS) 4153 found_ee = 1; 4154 } 4155 } 4156 4157 if (!found_ee || !found_wifi) 4158 return; 4159 4160 memset(&event, 0, sizeof(event)); 4161 event.eapol_tx_status.dst = data; 4162 event.eapol_tx_status.data = data + 14; 4163 event.eapol_tx_status.data_len = res - 14; 4164 event.eapol_tx_status.ack = acked; 4165 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event); 4166} 4167 4168 4169static int nl80211_init_bss(struct i802_bss *bss) 4170{ 4171 bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 4172 if (!bss->nl_cb) 4173 return -1; 4174 4175 nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 4176 no_seq_check, NULL); 4177 nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 4178 process_bss_event, bss); 4179 4180 return 0; 4181} 4182 4183 4184static void nl80211_destroy_bss(struct i802_bss *bss) 4185{ 4186 nl_cb_put(bss->nl_cb); 4187 bss->nl_cb = NULL; 4188} 4189 4190 4191static void * wpa_driver_nl80211_drv_init(void *ctx, const char *ifname, 4192 void *global_priv, int hostapd, 4193 const u8 *set_addr) 4194{ 4195 struct wpa_driver_nl80211_data *drv; 4196 struct rfkill_config *rcfg; 4197 struct i802_bss *bss; 4198 4199 if (global_priv == NULL) 4200 return NULL; 4201 drv = os_zalloc(sizeof(*drv)); 4202 if (drv == NULL) 4203 return NULL; 4204 drv->global = global_priv; 4205 drv->ctx = ctx; 4206 drv->hostapd = !!hostapd; 4207 drv->eapol_sock = -1; 4208 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int); 4209 drv->if_indices = drv->default_if_indices; 4210 4211 drv->first_bss = os_zalloc(sizeof(*drv->first_bss)); 4212 if (!drv->first_bss) { 4213 os_free(drv); 4214 return NULL; 4215 } 4216 bss = drv->first_bss; 4217 bss->drv = drv; 4218 bss->ctx = ctx; 4219 4220 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname)); 4221 drv->monitor_ifidx = -1; 4222 drv->monitor_sock = -1; 4223 drv->eapol_tx_sock = -1; 4224 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 4225 4226 if (wpa_driver_nl80211_init_nl(drv)) { 4227 os_free(drv); 4228 return NULL; 4229 } 4230 4231 if (nl80211_init_bss(bss)) 4232 goto failed; 4233 4234 rcfg = os_zalloc(sizeof(*rcfg)); 4235 if (rcfg == NULL) 4236 goto failed; 4237 rcfg->ctx = drv; 4238 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname)); 4239 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked; 4240 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked; 4241 drv->rfkill = rfkill_init(rcfg); 4242 if (drv->rfkill == NULL) { 4243 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available"); 4244 os_free(rcfg); 4245 } 4246 4247 if (linux_iface_up(drv->global->ioctl_sock, ifname) > 0) 4248 drv->start_iface_up = 1; 4249 4250 if (wpa_driver_nl80211_finish_drv_init(drv, set_addr, 1)) 4251 goto failed; 4252 4253 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0); 4254 if (drv->eapol_tx_sock < 0) 4255 goto failed; 4256 4257 if (drv->data_tx_status) { 4258 int enabled = 1; 4259 4260 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS, 4261 &enabled, sizeof(enabled)) < 0) { 4262 wpa_printf(MSG_DEBUG, 4263 "nl80211: wifi status sockopt failed\n"); 4264 drv->data_tx_status = 0; 4265 if (!drv->use_monitor) 4266 drv->capa.flags &= 4267 ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 4268 } else { 4269 eloop_register_read_sock(drv->eapol_tx_sock, 4270 wpa_driver_nl80211_handle_eapol_tx_status, 4271 drv, NULL); 4272 } 4273 } 4274 4275 if (drv->global) { 4276 dl_list_add(&drv->global->interfaces, &drv->list); 4277 drv->in_interface_list = 1; 4278 } 4279 4280 return bss; 4281 4282failed: 4283 wpa_driver_nl80211_deinit(bss); 4284 return NULL; 4285} 4286 4287 4288/** 4289 * wpa_driver_nl80211_init - Initialize nl80211 driver interface 4290 * @ctx: context to be used when calling wpa_supplicant functions, 4291 * e.g., wpa_supplicant_event() 4292 * @ifname: interface name, e.g., wlan0 4293 * @global_priv: private driver global data from global_init() 4294 * Returns: Pointer to private data, %NULL on failure 4295 */ 4296static void * wpa_driver_nl80211_init(void *ctx, const char *ifname, 4297 void *global_priv) 4298{ 4299 return wpa_driver_nl80211_drv_init(ctx, ifname, global_priv, 0, NULL); 4300} 4301 4302 4303static int nl80211_register_frame(struct i802_bss *bss, 4304 struct nl_handle *nl_handle, 4305 u16 type, const u8 *match, size_t match_len) 4306{ 4307 struct wpa_driver_nl80211_data *drv = bss->drv; 4308 struct nl_msg *msg; 4309 int ret = -1; 4310 char buf[30]; 4311 4312 msg = nlmsg_alloc(); 4313 if (!msg) 4314 return -1; 4315 4316 buf[0] = '\0'; 4317 wpa_snprintf_hex(buf, sizeof(buf), match, match_len); 4318 wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x nl_handle=%p match=%s", 4319 type, nl_handle, buf); 4320 4321 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION); 4322 4323 if (nl80211_set_iface_id(msg, bss) < 0) 4324 goto nla_put_failure; 4325 4326 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type); 4327 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match); 4328 4329 ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL); 4330 msg = NULL; 4331 if (ret) { 4332 wpa_printf(MSG_DEBUG, "nl80211: Register frame command " 4333 "failed (type=%u): ret=%d (%s)", 4334 type, ret, strerror(-ret)); 4335 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", 4336 match, match_len); 4337 goto nla_put_failure; 4338 } 4339 ret = 0; 4340nla_put_failure: 4341 nlmsg_free(msg); 4342 return ret; 4343} 4344 4345 4346static int nl80211_alloc_mgmt_handle(struct i802_bss *bss) 4347{ 4348 struct wpa_driver_nl80211_data *drv = bss->drv; 4349 4350 if (bss->nl_mgmt) { 4351 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting " 4352 "already on! (nl_mgmt=%p)", bss->nl_mgmt); 4353 return -1; 4354 } 4355 4356 bss->nl_mgmt = nl_create_handle(drv->nl_cb, "mgmt"); 4357 if (bss->nl_mgmt == NULL) 4358 return -1; 4359 4360 return 0; 4361} 4362 4363 4364static void nl80211_mgmt_handle_register_eloop(struct i802_bss *bss) 4365{ 4366 nl80211_register_eloop_read(&bss->nl_mgmt, 4367 wpa_driver_nl80211_event_receive, 4368 bss->nl_cb); 4369} 4370 4371 4372static int nl80211_register_action_frame(struct i802_bss *bss, 4373 const u8 *match, size_t match_len) 4374{ 4375 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4); 4376 return nl80211_register_frame(bss, bss->nl_mgmt, 4377 type, match, match_len); 4378} 4379 4380 4381static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss) 4382{ 4383 struct wpa_driver_nl80211_data *drv = bss->drv; 4384 int ret = 0; 4385 4386 if (nl80211_alloc_mgmt_handle(bss)) 4387 return -1; 4388 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP " 4389 "handle %p", bss->nl_mgmt); 4390 4391 if (drv->nlmode == NL80211_IFTYPE_ADHOC) { 4392 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_AUTH << 4); 4393 4394 /* register for any AUTH message */ 4395 nl80211_register_frame(bss, bss->nl_mgmt, type, NULL, 0); 4396 } 4397 4398#ifdef CONFIG_INTERWORKING 4399 /* QoS Map Configure */ 4400 if (nl80211_register_action_frame(bss, (u8 *) "\x01\x04", 2) < 0) 4401 ret = -1; 4402#endif /* CONFIG_INTERWORKING */ 4403#if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING) 4404 /* GAS Initial Request */ 4405 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0) 4406 ret = -1; 4407 /* GAS Initial Response */ 4408 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0) 4409 ret = -1; 4410 /* GAS Comeback Request */ 4411 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0) 4412 ret = -1; 4413 /* GAS Comeback Response */ 4414 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0) 4415 ret = -1; 4416 /* Protected GAS Initial Request */ 4417 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0a", 2) < 0) 4418 ret = -1; 4419 /* Protected GAS Initial Response */ 4420 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0b", 2) < 0) 4421 ret = -1; 4422 /* Protected GAS Comeback Request */ 4423 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0c", 2) < 0) 4424 ret = -1; 4425 /* Protected GAS Comeback Response */ 4426 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0d", 2) < 0) 4427 ret = -1; 4428#endif /* CONFIG_P2P || CONFIG_INTERWORKING */ 4429#ifdef CONFIG_P2P 4430 /* P2P Public Action */ 4431 if (nl80211_register_action_frame(bss, 4432 (u8 *) "\x04\x09\x50\x6f\x9a\x09", 4433 6) < 0) 4434 ret = -1; 4435 /* P2P Action */ 4436 if (nl80211_register_action_frame(bss, 4437 (u8 *) "\x7f\x50\x6f\x9a\x09", 4438 5) < 0) 4439 ret = -1; 4440#endif /* CONFIG_P2P */ 4441#ifdef CONFIG_IEEE80211W 4442 /* SA Query Response */ 4443 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0) 4444 ret = -1; 4445#endif /* CONFIG_IEEE80211W */ 4446#ifdef CONFIG_TDLS 4447 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) { 4448 /* TDLS Discovery Response */ 4449 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) < 4450 0) 4451 ret = -1; 4452 } 4453#endif /* CONFIG_TDLS */ 4454 4455 /* FT Action frames */ 4456 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0) 4457 ret = -1; 4458 else 4459 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT | 4460 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK; 4461 4462 /* WNM - BSS Transition Management Request */ 4463 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0) 4464 ret = -1; 4465 /* WNM-Sleep Mode Response */ 4466 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x11", 2) < 0) 4467 ret = -1; 4468 4469#ifdef CONFIG_HS20 4470 /* WNM-Notification */ 4471 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x1a", 2) < 0) 4472 return -1; 4473#endif /* CONFIG_HS20 */ 4474 4475 nl80211_mgmt_handle_register_eloop(bss); 4476 4477 return ret; 4478} 4479 4480 4481static int nl80211_register_spurious_class3(struct i802_bss *bss) 4482{ 4483 struct wpa_driver_nl80211_data *drv = bss->drv; 4484 struct nl_msg *msg; 4485 int ret = -1; 4486 4487 msg = nlmsg_alloc(); 4488 if (!msg) 4489 return -1; 4490 4491 nl80211_cmd(drv, msg, 0, NL80211_CMD_UNEXPECTED_FRAME); 4492 4493 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 4494 4495 ret = send_and_recv(drv->global, bss->nl_mgmt, msg, NULL, NULL); 4496 msg = NULL; 4497 if (ret) { 4498 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 " 4499 "failed: ret=%d (%s)", 4500 ret, strerror(-ret)); 4501 goto nla_put_failure; 4502 } 4503 ret = 0; 4504nla_put_failure: 4505 nlmsg_free(msg); 4506 return ret; 4507} 4508 4509 4510static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss) 4511{ 4512 static const int stypes[] = { 4513 WLAN_FC_STYPE_AUTH, 4514 WLAN_FC_STYPE_ASSOC_REQ, 4515 WLAN_FC_STYPE_REASSOC_REQ, 4516 WLAN_FC_STYPE_DISASSOC, 4517 WLAN_FC_STYPE_DEAUTH, 4518 WLAN_FC_STYPE_ACTION, 4519 WLAN_FC_STYPE_PROBE_REQ, 4520/* Beacon doesn't work as mac80211 doesn't currently allow 4521 * it, but it wouldn't really be the right thing anyway as 4522 * it isn't per interface ... maybe just dump the scan 4523 * results periodically for OLBC? 4524 */ 4525// WLAN_FC_STYPE_BEACON, 4526 }; 4527 unsigned int i; 4528 4529 if (nl80211_alloc_mgmt_handle(bss)) 4530 return -1; 4531 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 4532 "handle %p", bss->nl_mgmt); 4533 4534 for (i = 0; i < ARRAY_SIZE(stypes); i++) { 4535 if (nl80211_register_frame(bss, bss->nl_mgmt, 4536 (WLAN_FC_TYPE_MGMT << 2) | 4537 (stypes[i] << 4), 4538 NULL, 0) < 0) { 4539 goto out_err; 4540 } 4541 } 4542 4543 if (nl80211_register_spurious_class3(bss)) 4544 goto out_err; 4545 4546 if (nl80211_get_wiphy_data_ap(bss) == NULL) 4547 goto out_err; 4548 4549 nl80211_mgmt_handle_register_eloop(bss); 4550 return 0; 4551 4552out_err: 4553 nl_destroy_handles(&bss->nl_mgmt); 4554 return -1; 4555} 4556 4557 4558static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss) 4559{ 4560 if (nl80211_alloc_mgmt_handle(bss)) 4561 return -1; 4562 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 4563 "handle %p (device SME)", bss->nl_mgmt); 4564 4565 if (nl80211_register_frame(bss, bss->nl_mgmt, 4566 (WLAN_FC_TYPE_MGMT << 2) | 4567 (WLAN_FC_STYPE_ACTION << 4), 4568 NULL, 0) < 0) 4569 goto out_err; 4570 4571 nl80211_mgmt_handle_register_eloop(bss); 4572 return 0; 4573 4574out_err: 4575 nl_destroy_handles(&bss->nl_mgmt); 4576 return -1; 4577} 4578 4579 4580static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason) 4581{ 4582 if (bss->nl_mgmt == NULL) 4583 return; 4584 wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p " 4585 "(%s)", bss->nl_mgmt, reason); 4586 nl80211_destroy_eloop_handle(&bss->nl_mgmt); 4587 4588 nl80211_put_wiphy_data_ap(bss); 4589} 4590 4591 4592static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx) 4593{ 4594 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL); 4595} 4596 4597 4598static void nl80211_del_p2pdev(struct i802_bss *bss) 4599{ 4600 struct wpa_driver_nl80211_data *drv = bss->drv; 4601 struct nl_msg *msg; 4602 int ret; 4603 4604 msg = nlmsg_alloc(); 4605 if (!msg) 4606 return; 4607 4608 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 4609 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 4610 4611 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4612 msg = NULL; 4613 4614 wpa_printf(MSG_DEBUG, "nl80211: Delete P2P Device %s (0x%llx): %s", 4615 bss->ifname, (long long unsigned int) bss->wdev_id, 4616 strerror(-ret)); 4617 4618nla_put_failure: 4619 nlmsg_free(msg); 4620} 4621 4622 4623static int nl80211_set_p2pdev(struct i802_bss *bss, int start) 4624{ 4625 struct wpa_driver_nl80211_data *drv = bss->drv; 4626 struct nl_msg *msg; 4627 int ret = -1; 4628 4629 msg = nlmsg_alloc(); 4630 if (!msg) 4631 return -1; 4632 4633 if (start) 4634 nl80211_cmd(drv, msg, 0, NL80211_CMD_START_P2P_DEVICE); 4635 else 4636 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_P2P_DEVICE); 4637 4638 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 4639 4640 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4641 msg = NULL; 4642 4643 wpa_printf(MSG_DEBUG, "nl80211: %s P2P Device %s (0x%llx): %s", 4644 start ? "Start" : "Stop", 4645 bss->ifname, (long long unsigned int) bss->wdev_id, 4646 strerror(-ret)); 4647 4648nla_put_failure: 4649 nlmsg_free(msg); 4650 return ret; 4651} 4652 4653 4654static int i802_set_iface_flags(struct i802_bss *bss, int up) 4655{ 4656 enum nl80211_iftype nlmode; 4657 4658 nlmode = nl80211_get_ifmode(bss); 4659 if (nlmode != NL80211_IFTYPE_P2P_DEVICE) { 4660 return linux_set_iface_flags(bss->drv->global->ioctl_sock, 4661 bss->ifname, up); 4662 } 4663 4664 /* P2P Device has start/stop which is equivalent */ 4665 return nl80211_set_p2pdev(bss, up); 4666} 4667 4668 4669static int 4670wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv, 4671 const u8 *set_addr, int first) 4672{ 4673 struct i802_bss *bss = drv->first_bss; 4674 int send_rfkill_event = 0; 4675 enum nl80211_iftype nlmode; 4676 4677 drv->ifindex = if_nametoindex(bss->ifname); 4678 bss->ifindex = drv->ifindex; 4679 bss->wdev_id = drv->global->if_add_wdevid; 4680 bss->wdev_id_set = drv->global->if_add_wdevid_set; 4681 4682 bss->if_dynamic = drv->ifindex == drv->global->if_add_ifindex; 4683 bss->if_dynamic = bss->if_dynamic || drv->global->if_add_wdevid_set; 4684 drv->global->if_add_wdevid_set = 0; 4685 4686 if (wpa_driver_nl80211_capa(drv)) 4687 return -1; 4688 4689 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s", 4690 bss->ifname, drv->phyname); 4691 4692 if (set_addr && 4693 (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0) || 4694 linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 4695 set_addr))) 4696 return -1; 4697 4698 if (first && nl80211_get_ifmode(bss) == NL80211_IFTYPE_AP) 4699 drv->start_mode_ap = 1; 4700 4701 if (drv->hostapd) 4702 nlmode = NL80211_IFTYPE_AP; 4703 else if (bss->if_dynamic) 4704 nlmode = nl80211_get_ifmode(bss); 4705 else 4706 nlmode = NL80211_IFTYPE_STATION; 4707 4708 if (wpa_driver_nl80211_set_mode(bss, nlmode) < 0) { 4709 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver mode"); 4710 return -1; 4711 } 4712 4713 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) 4714 nl80211_get_macaddr(bss); 4715 4716 if (!rfkill_is_blocked(drv->rfkill)) { 4717 int ret = i802_set_iface_flags(bss, 1); 4718 if (ret) { 4719 wpa_printf(MSG_ERROR, "nl80211: Could not set " 4720 "interface '%s' UP", bss->ifname); 4721 return ret; 4722 } 4723 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) 4724 return ret; 4725 } else { 4726 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable " 4727 "interface '%s' due to rfkill", bss->ifname); 4728 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) 4729 return 0; 4730 drv->if_disabled = 1; 4731 send_rfkill_event = 1; 4732 } 4733 4734 if (!drv->hostapd) 4735 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 4736 1, IF_OPER_DORMANT); 4737 4738 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 4739 bss->addr)) 4740 return -1; 4741 4742 if (send_rfkill_event) { 4743 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill, 4744 drv, drv->ctx); 4745 } 4746 4747 return 0; 4748} 4749 4750 4751static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv) 4752{ 4753 struct nl_msg *msg; 4754 4755 msg = nlmsg_alloc(); 4756 if (!msg) 4757 return -ENOMEM; 4758 4759 wpa_printf(MSG_DEBUG, "nl80211: Remove beacon (ifindex=%d)", 4760 drv->ifindex); 4761 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON); 4762 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4763 4764 return send_and_recv_msgs(drv, msg, NULL, NULL); 4765 nla_put_failure: 4766 nlmsg_free(msg); 4767 return -ENOBUFS; 4768} 4769 4770 4771/** 4772 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface 4773 * @bss: Pointer to private nl80211 data from wpa_driver_nl80211_init() 4774 * 4775 * Shut down driver interface and processing of driver events. Free 4776 * private data buffer if one was allocated in wpa_driver_nl80211_init(). 4777 */ 4778static void wpa_driver_nl80211_deinit(struct i802_bss *bss) 4779{ 4780 struct wpa_driver_nl80211_data *drv = bss->drv; 4781 4782 bss->in_deinit = 1; 4783 if (drv->data_tx_status) 4784 eloop_unregister_read_sock(drv->eapol_tx_sock); 4785 if (drv->eapol_tx_sock >= 0) 4786 close(drv->eapol_tx_sock); 4787 4788 if (bss->nl_preq) 4789 wpa_driver_nl80211_probe_req_report(bss, 0); 4790 if (bss->added_if_into_bridge) { 4791 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 4792 bss->ifname) < 0) 4793 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 4794 "interface %s from bridge %s: %s", 4795 bss->ifname, bss->brname, strerror(errno)); 4796 } 4797 if (bss->added_bridge) { 4798 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 4799 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 4800 "bridge %s: %s", 4801 bss->brname, strerror(errno)); 4802 } 4803 4804 nl80211_remove_monitor_interface(drv); 4805 4806 if (is_ap_interface(drv->nlmode)) 4807 wpa_driver_nl80211_del_beacon(drv); 4808 4809 if (drv->eapol_sock >= 0) { 4810 eloop_unregister_read_sock(drv->eapol_sock); 4811 close(drv->eapol_sock); 4812 } 4813 4814 if (drv->if_indices != drv->default_if_indices) 4815 os_free(drv->if_indices); 4816 4817 if (drv->disabled_11b_rates) 4818 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 4819 4820 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0, 4821 IF_OPER_UP); 4822 rfkill_deinit(drv->rfkill); 4823 4824 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 4825 4826 if (!drv->start_iface_up) 4827 (void) i802_set_iface_flags(bss, 0); 4828 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) { 4829 if (!drv->hostapd || !drv->start_mode_ap) 4830 wpa_driver_nl80211_set_mode(bss, 4831 NL80211_IFTYPE_STATION); 4832 nl80211_mgmt_unsubscribe(bss, "deinit"); 4833 } else { 4834 nl80211_mgmt_unsubscribe(bss, "deinit"); 4835 nl80211_del_p2pdev(bss); 4836 } 4837 nl_cb_put(drv->nl_cb); 4838 4839 nl80211_destroy_bss(drv->first_bss); 4840 4841 os_free(drv->filter_ssids); 4842 4843 os_free(drv->auth_ie); 4844 4845 if (drv->in_interface_list) 4846 dl_list_del(&drv->list); 4847 4848 os_free(drv->extended_capa); 4849 os_free(drv->extended_capa_mask); 4850 os_free(drv->first_bss); 4851 os_free(drv); 4852} 4853 4854 4855/** 4856 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion 4857 * @eloop_ctx: Driver private data 4858 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init() 4859 * 4860 * This function can be used as registered timeout when starting a scan to 4861 * generate a scan completed event if the driver does not report this. 4862 */ 4863static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx) 4864{ 4865 struct wpa_driver_nl80211_data *drv = eloop_ctx; 4866 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) { 4867 wpa_driver_nl80211_set_mode(drv->first_bss, 4868 drv->ap_scan_as_station); 4869 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 4870 } 4871 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results"); 4872 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL); 4873} 4874 4875 4876static struct nl_msg * 4877nl80211_scan_common(struct wpa_driver_nl80211_data *drv, u8 cmd, 4878 struct wpa_driver_scan_params *params, u64 *wdev_id) 4879{ 4880 struct nl_msg *msg; 4881 size_t i; 4882 4883 msg = nlmsg_alloc(); 4884 if (!msg) 4885 return NULL; 4886 4887 nl80211_cmd(drv, msg, 0, cmd); 4888 4889 if (!wdev_id) 4890 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4891 else 4892 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, *wdev_id); 4893 4894 if (params->num_ssids) { 4895 struct nlattr *ssids; 4896 4897 ssids = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); 4898 if (ssids == NULL) 4899 goto fail; 4900 for (i = 0; i < params->num_ssids; i++) { 4901 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID", 4902 params->ssids[i].ssid, 4903 params->ssids[i].ssid_len); 4904 if (nla_put(msg, i + 1, params->ssids[i].ssid_len, 4905 params->ssids[i].ssid) < 0) 4906 goto fail; 4907 } 4908 nla_nest_end(msg, ssids); 4909 } 4910 4911 if (params->extra_ies) { 4912 wpa_hexdump(MSG_MSGDUMP, "nl80211: Scan extra IEs", 4913 params->extra_ies, params->extra_ies_len); 4914 if (nla_put(msg, NL80211_ATTR_IE, params->extra_ies_len, 4915 params->extra_ies) < 0) 4916 goto fail; 4917 } 4918 4919 if (params->freqs) { 4920 struct nlattr *freqs; 4921 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); 4922 if (freqs == NULL) 4923 goto fail; 4924 for (i = 0; params->freqs[i]; i++) { 4925 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u " 4926 "MHz", params->freqs[i]); 4927 if (nla_put_u32(msg, i + 1, params->freqs[i]) < 0) 4928 goto fail; 4929 } 4930 nla_nest_end(msg, freqs); 4931 } 4932 4933 os_free(drv->filter_ssids); 4934 drv->filter_ssids = params->filter_ssids; 4935 params->filter_ssids = NULL; 4936 drv->num_filter_ssids = params->num_filter_ssids; 4937 4938 if (params->only_new_results) { 4939 wpa_printf(MSG_DEBUG, "nl80211: Add NL80211_SCAN_FLAG_FLUSH"); 4940 NLA_PUT_U32(msg, NL80211_ATTR_SCAN_FLAGS, 4941 NL80211_SCAN_FLAG_FLUSH); 4942 } 4943 4944 return msg; 4945 4946fail: 4947nla_put_failure: 4948 nlmsg_free(msg); 4949 return NULL; 4950} 4951 4952 4953/** 4954 * wpa_driver_nl80211_scan - Request the driver to initiate scan 4955 * @bss: Pointer to private driver data from wpa_driver_nl80211_init() 4956 * @params: Scan parameters 4957 * Returns: 0 on success, -1 on failure 4958 */ 4959static int wpa_driver_nl80211_scan(struct i802_bss *bss, 4960 struct wpa_driver_scan_params *params) 4961{ 4962 struct wpa_driver_nl80211_data *drv = bss->drv; 4963 int ret = -1, timeout; 4964 struct nl_msg *msg = NULL; 4965 4966 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: scan request"); 4967 drv->scan_for_auth = 0; 4968 4969 msg = nl80211_scan_common(drv, NL80211_CMD_TRIGGER_SCAN, params, 4970 bss->wdev_id_set ? &bss->wdev_id : NULL); 4971 if (!msg) 4972 return -1; 4973 4974 if (params->p2p_probe) { 4975 struct nlattr *rates; 4976 4977 wpa_printf(MSG_DEBUG, "nl80211: P2P probe - mask SuppRates"); 4978 4979 rates = nla_nest_start(msg, NL80211_ATTR_SCAN_SUPP_RATES); 4980 if (rates == NULL) 4981 goto nla_put_failure; 4982 4983 /* 4984 * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates 4985 * by masking out everything else apart from the OFDM rates 6, 4986 * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz 4987 * rates are left enabled. 4988 */ 4989 NLA_PUT(msg, NL80211_BAND_2GHZ, 8, 4990 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 4991 nla_nest_end(msg, rates); 4992 4993 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 4994 } 4995 4996 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4997 msg = NULL; 4998 if (ret) { 4999 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d " 5000 "(%s)", ret, strerror(-ret)); 5001 if (drv->hostapd && is_ap_interface(drv->nlmode)) { 5002 enum nl80211_iftype old_mode = drv->nlmode; 5003 5004 /* 5005 * mac80211 does not allow scan requests in AP mode, so 5006 * try to do this in station mode. 5007 */ 5008 if (wpa_driver_nl80211_set_mode( 5009 bss, NL80211_IFTYPE_STATION)) 5010 goto nla_put_failure; 5011 5012 if (wpa_driver_nl80211_scan(bss, params)) { 5013 wpa_driver_nl80211_set_mode(bss, drv->nlmode); 5014 goto nla_put_failure; 5015 } 5016 5017 /* Restore AP mode when processing scan results */ 5018 drv->ap_scan_as_station = old_mode; 5019 ret = 0; 5020 } else 5021 goto nla_put_failure; 5022 } 5023 5024 drv->scan_state = SCAN_REQUESTED; 5025 /* Not all drivers generate "scan completed" wireless event, so try to 5026 * read results after a timeout. */ 5027 timeout = 10; 5028 if (drv->scan_complete_events) { 5029 /* 5030 * The driver seems to deliver events to notify when scan is 5031 * complete, so use longer timeout to avoid race conditions 5032 * with scanning and following association request. 5033 */ 5034 timeout = 30; 5035 } 5036 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d " 5037 "seconds", ret, timeout); 5038 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 5039 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout, 5040 drv, drv->ctx); 5041 5042nla_put_failure: 5043 nlmsg_free(msg); 5044 return ret; 5045} 5046 5047 5048/** 5049 * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan 5050 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 5051 * @params: Scan parameters 5052 * @interval: Interval between scan cycles in milliseconds 5053 * Returns: 0 on success, -1 on failure or if not supported 5054 */ 5055static int wpa_driver_nl80211_sched_scan(void *priv, 5056 struct wpa_driver_scan_params *params, 5057 u32 interval) 5058{ 5059 struct i802_bss *bss = priv; 5060 struct wpa_driver_nl80211_data *drv = bss->drv; 5061 int ret = -1; 5062 struct nl_msg *msg; 5063 size_t i; 5064 5065 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: sched_scan request"); 5066 5067#ifdef ANDROID 5068 if (!drv->capa.sched_scan_supported) 5069 return android_pno_start(bss, params); 5070#endif /* ANDROID */ 5071 5072 msg = nl80211_scan_common(drv, NL80211_CMD_START_SCHED_SCAN, params, 5073 bss->wdev_id_set ? &bss->wdev_id : NULL); 5074 if (!msg) 5075 goto nla_put_failure; 5076 5077 NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval); 5078 5079 if ((drv->num_filter_ssids && 5080 (int) drv->num_filter_ssids <= drv->capa.max_match_sets) || 5081 params->filter_rssi) { 5082 struct nlattr *match_sets; 5083 match_sets = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH); 5084 if (match_sets == NULL) 5085 goto nla_put_failure; 5086 5087 for (i = 0; i < drv->num_filter_ssids; i++) { 5088 struct nlattr *match_set_ssid; 5089 wpa_hexdump_ascii(MSG_MSGDUMP, 5090 "nl80211: Sched scan filter SSID", 5091 drv->filter_ssids[i].ssid, 5092 drv->filter_ssids[i].ssid_len); 5093 5094 match_set_ssid = nla_nest_start(msg, i + 1); 5095 if (match_set_ssid == NULL) 5096 goto nla_put_failure; 5097 NLA_PUT(msg, NL80211_ATTR_SCHED_SCAN_MATCH_SSID, 5098 drv->filter_ssids[i].ssid_len, 5099 drv->filter_ssids[i].ssid); 5100 if (params->filter_rssi) 5101 NLA_PUT_U32(msg, 5102 NL80211_SCHED_SCAN_MATCH_ATTR_RSSI, 5103 params->filter_rssi); 5104 5105 nla_nest_end(msg, match_set_ssid); 5106 } 5107 5108 /* 5109 * Due to backward compatibility code, newer kernels treat this 5110 * matchset (with only an RSSI filter) as the default for all 5111 * other matchsets, unless it's the only one, in which case the 5112 * matchset will actually allow all SSIDs above the RSSI. 5113 */ 5114 if (params->filter_rssi) { 5115 struct nlattr *match_set_rssi; 5116 match_set_rssi = nla_nest_start(msg, 0); 5117 if (match_set_rssi == NULL) 5118 goto nla_put_failure; 5119 NLA_PUT_U32(msg, NL80211_SCHED_SCAN_MATCH_ATTR_RSSI, 5120 params->filter_rssi); 5121 wpa_printf(MSG_MSGDUMP, 5122 "nl80211: Sched scan RSSI filter %d dBm", 5123 params->filter_rssi); 5124 nla_nest_end(msg, match_set_rssi); 5125 } 5126 5127 nla_nest_end(msg, match_sets); 5128 } 5129 5130 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5131 5132 /* TODO: if we get an error here, we should fall back to normal scan */ 5133 5134 msg = NULL; 5135 if (ret) { 5136 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: " 5137 "ret=%d (%s)", ret, strerror(-ret)); 5138 goto nla_put_failure; 5139 } 5140 5141 wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - " 5142 "scan interval %d msec", ret, interval); 5143 5144nla_put_failure: 5145 nlmsg_free(msg); 5146 return ret; 5147} 5148 5149 5150/** 5151 * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan 5152 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 5153 * Returns: 0 on success, -1 on failure or if not supported 5154 */ 5155static int wpa_driver_nl80211_stop_sched_scan(void *priv) 5156{ 5157 struct i802_bss *bss = priv; 5158 struct wpa_driver_nl80211_data *drv = bss->drv; 5159 int ret = 0; 5160 struct nl_msg *msg; 5161 5162#ifdef ANDROID 5163 if (!drv->capa.sched_scan_supported) 5164 return android_pno_stop(bss); 5165#endif /* ANDROID */ 5166 5167 msg = nlmsg_alloc(); 5168 if (!msg) 5169 return -1; 5170 5171 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN); 5172 5173 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5174 5175 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5176 msg = NULL; 5177 if (ret) { 5178 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: " 5179 "ret=%d (%s)", ret, strerror(-ret)); 5180 goto nla_put_failure; 5181 } 5182 5183 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret); 5184 5185nla_put_failure: 5186 nlmsg_free(msg); 5187 return ret; 5188} 5189 5190 5191static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie) 5192{ 5193 const u8 *end, *pos; 5194 5195 if (ies == NULL) 5196 return NULL; 5197 5198 pos = ies; 5199 end = ies + ies_len; 5200 5201 while (pos + 1 < end) { 5202 if (pos + 2 + pos[1] > end) 5203 break; 5204 if (pos[0] == ie) 5205 return pos; 5206 pos += 2 + pos[1]; 5207 } 5208 5209 return NULL; 5210} 5211 5212 5213static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv, 5214 const u8 *ie, size_t ie_len) 5215{ 5216 const u8 *ssid; 5217 size_t i; 5218 5219 if (drv->filter_ssids == NULL) 5220 return 0; 5221 5222 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID); 5223 if (ssid == NULL) 5224 return 1; 5225 5226 for (i = 0; i < drv->num_filter_ssids; i++) { 5227 if (ssid[1] == drv->filter_ssids[i].ssid_len && 5228 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) == 5229 0) 5230 return 0; 5231 } 5232 5233 return 1; 5234} 5235 5236 5237static int bss_info_handler(struct nl_msg *msg, void *arg) 5238{ 5239 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 5240 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 5241 struct nlattr *bss[NL80211_BSS_MAX + 1]; 5242 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = { 5243 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC }, 5244 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 }, 5245 [NL80211_BSS_TSF] = { .type = NLA_U64 }, 5246 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 }, 5247 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 }, 5248 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC }, 5249 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 }, 5250 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 }, 5251 [NL80211_BSS_STATUS] = { .type = NLA_U32 }, 5252 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 }, 5253 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC }, 5254 }; 5255 struct nl80211_bss_info_arg *_arg = arg; 5256 struct wpa_scan_results *res = _arg->res; 5257 struct wpa_scan_res **tmp; 5258 struct wpa_scan_res *r; 5259 const u8 *ie, *beacon_ie; 5260 size_t ie_len, beacon_ie_len; 5261 u8 *pos; 5262 size_t i; 5263 5264 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 5265 genlmsg_attrlen(gnlh, 0), NULL); 5266 if (!tb[NL80211_ATTR_BSS]) 5267 return NL_SKIP; 5268 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS], 5269 bss_policy)) 5270 return NL_SKIP; 5271 if (bss[NL80211_BSS_STATUS]) { 5272 enum nl80211_bss_status status; 5273 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 5274 if (status == NL80211_BSS_STATUS_ASSOCIATED && 5275 bss[NL80211_BSS_FREQUENCY]) { 5276 _arg->assoc_freq = 5277 nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 5278 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz", 5279 _arg->assoc_freq); 5280 } 5281 if (status == NL80211_BSS_STATUS_ASSOCIATED && 5282 bss[NL80211_BSS_BSSID]) { 5283 os_memcpy(_arg->assoc_bssid, 5284 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN); 5285 wpa_printf(MSG_DEBUG, "nl80211: Associated with " 5286 MACSTR, MAC2STR(_arg->assoc_bssid)); 5287 } 5288 } 5289 if (!res) 5290 return NL_SKIP; 5291 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) { 5292 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 5293 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 5294 } else { 5295 ie = NULL; 5296 ie_len = 0; 5297 } 5298 if (bss[NL80211_BSS_BEACON_IES]) { 5299 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]); 5300 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]); 5301 } else { 5302 beacon_ie = NULL; 5303 beacon_ie_len = 0; 5304 } 5305 5306 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie, 5307 ie ? ie_len : beacon_ie_len)) 5308 return NL_SKIP; 5309 5310 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len); 5311 if (r == NULL) 5312 return NL_SKIP; 5313 if (bss[NL80211_BSS_BSSID]) 5314 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]), 5315 ETH_ALEN); 5316 if (bss[NL80211_BSS_FREQUENCY]) 5317 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 5318 if (bss[NL80211_BSS_BEACON_INTERVAL]) 5319 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]); 5320 if (bss[NL80211_BSS_CAPABILITY]) 5321 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]); 5322 r->flags |= WPA_SCAN_NOISE_INVALID; 5323 if (bss[NL80211_BSS_SIGNAL_MBM]) { 5324 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]); 5325 r->level /= 100; /* mBm to dBm */ 5326 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID; 5327 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) { 5328 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]); 5329 r->flags |= WPA_SCAN_QUAL_INVALID; 5330 } else 5331 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID; 5332 if (bss[NL80211_BSS_TSF]) 5333 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]); 5334 if (bss[NL80211_BSS_SEEN_MS_AGO]) 5335 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]); 5336 r->ie_len = ie_len; 5337 pos = (u8 *) (r + 1); 5338 if (ie) { 5339 os_memcpy(pos, ie, ie_len); 5340 pos += ie_len; 5341 } 5342 r->beacon_ie_len = beacon_ie_len; 5343 if (beacon_ie) 5344 os_memcpy(pos, beacon_ie, beacon_ie_len); 5345 5346 if (bss[NL80211_BSS_STATUS]) { 5347 enum nl80211_bss_status status; 5348 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 5349 switch (status) { 5350 case NL80211_BSS_STATUS_AUTHENTICATED: 5351 r->flags |= WPA_SCAN_AUTHENTICATED; 5352 break; 5353 case NL80211_BSS_STATUS_ASSOCIATED: 5354 r->flags |= WPA_SCAN_ASSOCIATED; 5355 break; 5356 default: 5357 break; 5358 } 5359 } 5360 5361 /* 5362 * cfg80211 maintains separate BSS table entries for APs if the same 5363 * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does 5364 * not use frequency as a separate key in the BSS table, so filter out 5365 * duplicated entries. Prefer associated BSS entry in such a case in 5366 * order to get the correct frequency into the BSS table. Similarly, 5367 * prefer newer entries over older. 5368 */ 5369 for (i = 0; i < res->num; i++) { 5370 const u8 *s1, *s2; 5371 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0) 5372 continue; 5373 5374 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1), 5375 res->res[i]->ie_len, WLAN_EID_SSID); 5376 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID); 5377 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] || 5378 os_memcmp(s1, s2, 2 + s1[1]) != 0) 5379 continue; 5380 5381 /* Same BSSID,SSID was already included in scan results */ 5382 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result " 5383 "for " MACSTR, MAC2STR(r->bssid)); 5384 5385 if (((r->flags & WPA_SCAN_ASSOCIATED) && 5386 !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) || 5387 r->age < res->res[i]->age) { 5388 os_free(res->res[i]); 5389 res->res[i] = r; 5390 } else 5391 os_free(r); 5392 return NL_SKIP; 5393 } 5394 5395 tmp = os_realloc_array(res->res, res->num + 1, 5396 sizeof(struct wpa_scan_res *)); 5397 if (tmp == NULL) { 5398 os_free(r); 5399 return NL_SKIP; 5400 } 5401 tmp[res->num++] = r; 5402 res->res = tmp; 5403 5404 return NL_SKIP; 5405} 5406 5407 5408static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv, 5409 const u8 *addr) 5410{ 5411 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 5412 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state " 5413 "mismatch (" MACSTR ")", MAC2STR(addr)); 5414 wpa_driver_nl80211_mlme(drv, addr, 5415 NL80211_CMD_DEAUTHENTICATE, 5416 WLAN_REASON_PREV_AUTH_NOT_VALID, 1); 5417 } 5418} 5419 5420 5421static void wpa_driver_nl80211_check_bss_status( 5422 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res) 5423{ 5424 size_t i; 5425 5426 for (i = 0; i < res->num; i++) { 5427 struct wpa_scan_res *r = res->res[i]; 5428 if (r->flags & WPA_SCAN_AUTHENTICATED) { 5429 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 5430 "indicates BSS status with " MACSTR 5431 " as authenticated", 5432 MAC2STR(r->bssid)); 5433 if (is_sta_interface(drv->nlmode) && 5434 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 && 5435 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) != 5436 0) { 5437 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID" 5438 " in local state (auth=" MACSTR 5439 " assoc=" MACSTR ")", 5440 MAC2STR(drv->auth_bssid), 5441 MAC2STR(drv->bssid)); 5442 clear_state_mismatch(drv, r->bssid); 5443 } 5444 } 5445 5446 if (r->flags & WPA_SCAN_ASSOCIATED) { 5447 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 5448 "indicate BSS status with " MACSTR 5449 " as associated", 5450 MAC2STR(r->bssid)); 5451 if (is_sta_interface(drv->nlmode) && 5452 !drv->associated) { 5453 wpa_printf(MSG_DEBUG, "nl80211: Local state " 5454 "(not associated) does not match " 5455 "with BSS state"); 5456 clear_state_mismatch(drv, r->bssid); 5457 } else if (is_sta_interface(drv->nlmode) && 5458 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) != 5459 0) { 5460 wpa_printf(MSG_DEBUG, "nl80211: Local state " 5461 "(associated with " MACSTR ") does " 5462 "not match with BSS state", 5463 MAC2STR(drv->bssid)); 5464 clear_state_mismatch(drv, r->bssid); 5465 clear_state_mismatch(drv, drv->bssid); 5466 } 5467 } 5468 } 5469} 5470 5471 5472static struct wpa_scan_results * 5473nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv) 5474{ 5475 struct nl_msg *msg; 5476 struct wpa_scan_results *res; 5477 int ret; 5478 struct nl80211_bss_info_arg arg; 5479 5480 res = os_zalloc(sizeof(*res)); 5481 if (res == NULL) 5482 return NULL; 5483 msg = nlmsg_alloc(); 5484 if (!msg) 5485 goto nla_put_failure; 5486 5487 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 5488 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 5489 goto nla_put_failure; 5490 5491 arg.drv = drv; 5492 arg.res = res; 5493 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 5494 msg = NULL; 5495 if (ret == 0) { 5496 wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu " 5497 "BSSes)", (unsigned long) res->num); 5498 nl80211_get_noise_for_scan_results(drv, res); 5499 return res; 5500 } 5501 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 5502 "(%s)", ret, strerror(-ret)); 5503nla_put_failure: 5504 nlmsg_free(msg); 5505 wpa_scan_results_free(res); 5506 return NULL; 5507} 5508 5509 5510/** 5511 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results 5512 * @priv: Pointer to private wext data from wpa_driver_nl80211_init() 5513 * Returns: Scan results on success, -1 on failure 5514 */ 5515static struct wpa_scan_results * 5516wpa_driver_nl80211_get_scan_results(void *priv) 5517{ 5518 struct i802_bss *bss = priv; 5519 struct wpa_driver_nl80211_data *drv = bss->drv; 5520 struct wpa_scan_results *res; 5521 5522 res = nl80211_get_scan_results(drv); 5523 if (res) 5524 wpa_driver_nl80211_check_bss_status(drv, res); 5525 return res; 5526} 5527 5528 5529static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv) 5530{ 5531 struct wpa_scan_results *res; 5532 size_t i; 5533 5534 res = nl80211_get_scan_results(drv); 5535 if (res == NULL) { 5536 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results"); 5537 return; 5538 } 5539 5540 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump"); 5541 for (i = 0; i < res->num; i++) { 5542 struct wpa_scan_res *r = res->res[i]; 5543 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s", 5544 (int) i, (int) res->num, MAC2STR(r->bssid), 5545 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "", 5546 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : ""); 5547 } 5548 5549 wpa_scan_results_free(res); 5550} 5551 5552 5553static u32 wpa_alg_to_cipher_suite(enum wpa_alg alg, size_t key_len) 5554{ 5555 switch (alg) { 5556 case WPA_ALG_WEP: 5557 if (key_len == 5) 5558 return WLAN_CIPHER_SUITE_WEP40; 5559 return WLAN_CIPHER_SUITE_WEP104; 5560 case WPA_ALG_TKIP: 5561 return WLAN_CIPHER_SUITE_TKIP; 5562 case WPA_ALG_CCMP: 5563 return WLAN_CIPHER_SUITE_CCMP; 5564 case WPA_ALG_GCMP: 5565 return WLAN_CIPHER_SUITE_GCMP; 5566 case WPA_ALG_CCMP_256: 5567 return WLAN_CIPHER_SUITE_CCMP_256; 5568 case WPA_ALG_GCMP_256: 5569 return WLAN_CIPHER_SUITE_GCMP_256; 5570 case WPA_ALG_IGTK: 5571 return WLAN_CIPHER_SUITE_AES_CMAC; 5572 case WPA_ALG_BIP_GMAC_128: 5573 return WLAN_CIPHER_SUITE_BIP_GMAC_128; 5574 case WPA_ALG_BIP_GMAC_256: 5575 return WLAN_CIPHER_SUITE_BIP_GMAC_256; 5576 case WPA_ALG_BIP_CMAC_256: 5577 return WLAN_CIPHER_SUITE_BIP_CMAC_256; 5578 case WPA_ALG_SMS4: 5579 return WLAN_CIPHER_SUITE_SMS4; 5580 case WPA_ALG_KRK: 5581 return WLAN_CIPHER_SUITE_KRK; 5582 case WPA_ALG_NONE: 5583 case WPA_ALG_PMK: 5584 wpa_printf(MSG_ERROR, "nl80211: Unexpected encryption algorithm %d", 5585 alg); 5586 return 0; 5587 } 5588 5589 wpa_printf(MSG_ERROR, "nl80211: Unsupported encryption algorithm %d", 5590 alg); 5591 return 0; 5592} 5593 5594 5595static u32 wpa_cipher_to_cipher_suite(unsigned int cipher) 5596{ 5597 switch (cipher) { 5598 case WPA_CIPHER_CCMP_256: 5599 return WLAN_CIPHER_SUITE_CCMP_256; 5600 case WPA_CIPHER_GCMP_256: 5601 return WLAN_CIPHER_SUITE_GCMP_256; 5602 case WPA_CIPHER_CCMP: 5603 return WLAN_CIPHER_SUITE_CCMP; 5604 case WPA_CIPHER_GCMP: 5605 return WLAN_CIPHER_SUITE_GCMP; 5606 case WPA_CIPHER_TKIP: 5607 return WLAN_CIPHER_SUITE_TKIP; 5608 case WPA_CIPHER_WEP104: 5609 return WLAN_CIPHER_SUITE_WEP104; 5610 case WPA_CIPHER_WEP40: 5611 return WLAN_CIPHER_SUITE_WEP40; 5612 case WPA_CIPHER_GTK_NOT_USED: 5613 return WLAN_CIPHER_SUITE_NO_GROUP_ADDR; 5614 } 5615 5616 return 0; 5617} 5618 5619 5620static int wpa_cipher_to_cipher_suites(unsigned int ciphers, u32 suites[], 5621 int max_suites) 5622{ 5623 int num_suites = 0; 5624 5625 if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP_256) 5626 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP_256; 5627 if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP_256) 5628 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP_256; 5629 if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP) 5630 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP; 5631 if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP) 5632 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP; 5633 if (num_suites < max_suites && ciphers & WPA_CIPHER_TKIP) 5634 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP; 5635 if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP104) 5636 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104; 5637 if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP40) 5638 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40; 5639 5640 return num_suites; 5641} 5642 5643 5644static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss, 5645 enum wpa_alg alg, const u8 *addr, 5646 int key_idx, int set_tx, 5647 const u8 *seq, size_t seq_len, 5648 const u8 *key, size_t key_len) 5649{ 5650 struct wpa_driver_nl80211_data *drv = bss->drv; 5651 int ifindex; 5652 struct nl_msg *msg; 5653 int ret; 5654 int tdls = 0; 5655 5656 /* Ignore for P2P Device */ 5657 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 5658 return 0; 5659 5660 ifindex = if_nametoindex(ifname); 5661 wpa_printf(MSG_DEBUG, "%s: ifindex=%d (%s) alg=%d addr=%p key_idx=%d " 5662 "set_tx=%d seq_len=%lu key_len=%lu", 5663 __func__, ifindex, ifname, alg, addr, key_idx, set_tx, 5664 (unsigned long) seq_len, (unsigned long) key_len); 5665#ifdef CONFIG_TDLS 5666 if (key_idx == -1) { 5667 key_idx = 0; 5668 tdls = 1; 5669 } 5670#endif /* CONFIG_TDLS */ 5671 5672 msg = nlmsg_alloc(); 5673 if (!msg) 5674 return -ENOMEM; 5675 5676 if (alg == WPA_ALG_NONE) { 5677 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY); 5678 } else { 5679 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY); 5680 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key); 5681 wpa_hexdump_key(MSG_DEBUG, "nl80211: KEY_DATA", key, key_len); 5682 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5683 wpa_alg_to_cipher_suite(alg, key_len)); 5684 } 5685 5686 if (seq && seq_len) { 5687 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq); 5688 wpa_hexdump(MSG_DEBUG, "nl80211: KEY_SEQ", seq, seq_len); 5689 } 5690 5691 if (addr && !is_broadcast_ether_addr(addr)) { 5692 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr)); 5693 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 5694 5695 if (alg != WPA_ALG_WEP && key_idx && !set_tx) { 5696 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK"); 5697 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, 5698 NL80211_KEYTYPE_GROUP); 5699 } 5700 } else if (addr && is_broadcast_ether_addr(addr)) { 5701 struct nlattr *types; 5702 5703 wpa_printf(MSG_DEBUG, " broadcast key"); 5704 5705 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5706 if (!types) 5707 goto nla_put_failure; 5708 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 5709 nla_nest_end(msg, types); 5710 } 5711 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 5712 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5713 5714 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5715 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE) 5716 ret = 0; 5717 if (ret) 5718 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)", 5719 ret, strerror(-ret)); 5720 5721 /* 5722 * If we failed or don't need to set the default TX key (below), 5723 * we're done here. 5724 */ 5725 if (ret || !set_tx || alg == WPA_ALG_NONE || tdls) 5726 return ret; 5727 if (is_ap_interface(drv->nlmode) && addr && 5728 !is_broadcast_ether_addr(addr)) 5729 return ret; 5730 5731 msg = nlmsg_alloc(); 5732 if (!msg) 5733 return -ENOMEM; 5734 5735 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY); 5736 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 5737 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5738 if (alg == WPA_ALG_IGTK) 5739 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT); 5740 else 5741 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT); 5742 if (addr && is_broadcast_ether_addr(addr)) { 5743 struct nlattr *types; 5744 5745 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5746 if (!types) 5747 goto nla_put_failure; 5748 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 5749 nla_nest_end(msg, types); 5750 } else if (addr) { 5751 struct nlattr *types; 5752 5753 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5754 if (!types) 5755 goto nla_put_failure; 5756 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_UNICAST); 5757 nla_nest_end(msg, types); 5758 } 5759 5760 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5761 if (ret == -ENOENT) 5762 ret = 0; 5763 if (ret) 5764 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; " 5765 "err=%d %s)", ret, strerror(-ret)); 5766 return ret; 5767 5768nla_put_failure: 5769 nlmsg_free(msg); 5770 return -ENOBUFS; 5771} 5772 5773 5774static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg, 5775 int key_idx, int defkey, 5776 const u8 *seq, size_t seq_len, 5777 const u8 *key, size_t key_len) 5778{ 5779 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY); 5780 if (!key_attr) 5781 return -1; 5782 5783 if (defkey && alg == WPA_ALG_IGTK) 5784 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT); 5785 else if (defkey) 5786 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 5787 5788 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx); 5789 5790 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5791 wpa_alg_to_cipher_suite(alg, key_len)); 5792 5793 if (seq && seq_len) 5794 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq); 5795 5796 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key); 5797 5798 nla_nest_end(msg, key_attr); 5799 5800 return 0; 5801 nla_put_failure: 5802 return -1; 5803} 5804 5805 5806static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params, 5807 struct nl_msg *msg) 5808{ 5809 int i, privacy = 0; 5810 struct nlattr *nl_keys, *nl_key; 5811 5812 for (i = 0; i < 4; i++) { 5813 if (!params->wep_key[i]) 5814 continue; 5815 privacy = 1; 5816 break; 5817 } 5818 if (params->wps == WPS_MODE_PRIVACY) 5819 privacy = 1; 5820 if (params->pairwise_suite && 5821 params->pairwise_suite != WPA_CIPHER_NONE) 5822 privacy = 1; 5823 5824 if (!privacy) 5825 return 0; 5826 5827 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 5828 5829 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS); 5830 if (!nl_keys) 5831 goto nla_put_failure; 5832 5833 for (i = 0; i < 4; i++) { 5834 if (!params->wep_key[i]) 5835 continue; 5836 5837 nl_key = nla_nest_start(msg, i); 5838 if (!nl_key) 5839 goto nla_put_failure; 5840 5841 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i], 5842 params->wep_key[i]); 5843 if (params->wep_key_len[i] == 5) 5844 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5845 WLAN_CIPHER_SUITE_WEP40); 5846 else 5847 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5848 WLAN_CIPHER_SUITE_WEP104); 5849 5850 NLA_PUT_U8(msg, NL80211_KEY_IDX, i); 5851 5852 if (i == params->wep_tx_keyidx) 5853 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 5854 5855 nla_nest_end(msg, nl_key); 5856 } 5857 nla_nest_end(msg, nl_keys); 5858 5859 return 0; 5860 5861nla_put_failure: 5862 return -ENOBUFS; 5863} 5864 5865 5866static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 5867 const u8 *addr, int cmd, u16 reason_code, 5868 int local_state_change) 5869{ 5870 int ret = -1; 5871 struct nl_msg *msg; 5872 5873 msg = nlmsg_alloc(); 5874 if (!msg) 5875 return -1; 5876 5877 nl80211_cmd(drv, msg, 0, cmd); 5878 5879 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5880 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code); 5881 if (addr) 5882 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 5883 if (local_state_change) 5884 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 5885 5886 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5887 msg = NULL; 5888 if (ret) { 5889 wpa_dbg(drv->ctx, MSG_DEBUG, 5890 "nl80211: MLME command failed: reason=%u ret=%d (%s)", 5891 reason_code, ret, strerror(-ret)); 5892 goto nla_put_failure; 5893 } 5894 ret = 0; 5895 5896nla_put_failure: 5897 nlmsg_free(msg); 5898 return ret; 5899} 5900 5901 5902static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv, 5903 int reason_code) 5904{ 5905 int ret; 5906 5907 wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code); 5908 nl80211_mark_disconnected(drv); 5909 /* Disconnect command doesn't need BSSID - it uses cached value */ 5910 ret = wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT, 5911 reason_code, 0); 5912 /* 5913 * For locally generated disconnect, supplicant already generates a 5914 * DEAUTH event, so ignore the event from NL80211. 5915 */ 5916 drv->ignore_next_local_disconnect = ret == 0; 5917 5918 return ret; 5919} 5920 5921 5922static int wpa_driver_nl80211_deauthenticate(struct i802_bss *bss, 5923 const u8 *addr, int reason_code) 5924{ 5925 struct wpa_driver_nl80211_data *drv = bss->drv; 5926 int ret; 5927 5928 if (drv->nlmode == NL80211_IFTYPE_ADHOC) { 5929 nl80211_mark_disconnected(drv); 5930 return nl80211_leave_ibss(drv); 5931 } 5932 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) 5933 return wpa_driver_nl80211_disconnect(drv, reason_code); 5934 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)", 5935 __func__, MAC2STR(addr), reason_code); 5936 nl80211_mark_disconnected(drv); 5937 ret = wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE, 5938 reason_code, 0); 5939 /* 5940 * For locally generated deauthenticate, supplicant already generates a 5941 * DEAUTH event, so ignore the event from NL80211. 5942 */ 5943 drv->ignore_next_local_deauth = ret == 0; 5944 return ret; 5945} 5946 5947 5948static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv, 5949 struct wpa_driver_auth_params *params) 5950{ 5951 int i; 5952 5953 drv->auth_freq = params->freq; 5954 drv->auth_alg = params->auth_alg; 5955 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx; 5956 drv->auth_local_state_change = params->local_state_change; 5957 drv->auth_p2p = params->p2p; 5958 5959 if (params->bssid) 5960 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN); 5961 else 5962 os_memset(drv->auth_bssid_, 0, ETH_ALEN); 5963 5964 if (params->ssid) { 5965 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len); 5966 drv->auth_ssid_len = params->ssid_len; 5967 } else 5968 drv->auth_ssid_len = 0; 5969 5970 5971 os_free(drv->auth_ie); 5972 drv->auth_ie = NULL; 5973 drv->auth_ie_len = 0; 5974 if (params->ie) { 5975 drv->auth_ie = os_malloc(params->ie_len); 5976 if (drv->auth_ie) { 5977 os_memcpy(drv->auth_ie, params->ie, params->ie_len); 5978 drv->auth_ie_len = params->ie_len; 5979 } 5980 } 5981 5982 for (i = 0; i < 4; i++) { 5983 if (params->wep_key[i] && params->wep_key_len[i] && 5984 params->wep_key_len[i] <= 16) { 5985 os_memcpy(drv->auth_wep_key[i], params->wep_key[i], 5986 params->wep_key_len[i]); 5987 drv->auth_wep_key_len[i] = params->wep_key_len[i]; 5988 } else 5989 drv->auth_wep_key_len[i] = 0; 5990 } 5991} 5992 5993 5994static int wpa_driver_nl80211_authenticate( 5995 struct i802_bss *bss, struct wpa_driver_auth_params *params) 5996{ 5997 struct wpa_driver_nl80211_data *drv = bss->drv; 5998 int ret = -1, i; 5999 struct nl_msg *msg; 6000 enum nl80211_auth_type type; 6001 enum nl80211_iftype nlmode; 6002 int count = 0; 6003 int is_retry; 6004 6005 is_retry = drv->retry_auth; 6006 drv->retry_auth = 0; 6007 drv->ignore_deauth_event = 0; 6008 6009 nl80211_mark_disconnected(drv); 6010 os_memset(drv->auth_bssid, 0, ETH_ALEN); 6011 if (params->bssid) 6012 os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN); 6013 else 6014 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 6015 /* FIX: IBSS mode */ 6016 nlmode = params->p2p ? 6017 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 6018 if (drv->nlmode != nlmode && 6019 wpa_driver_nl80211_set_mode(bss, nlmode) < 0) 6020 return -1; 6021 6022retry: 6023 msg = nlmsg_alloc(); 6024 if (!msg) 6025 return -1; 6026 6027 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)", 6028 drv->ifindex); 6029 6030 nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE); 6031 6032 for (i = 0; i < 4; i++) { 6033 if (!params->wep_key[i]) 6034 continue; 6035 wpa_driver_nl80211_set_key(bss->ifname, bss, WPA_ALG_WEP, 6036 NULL, i, 6037 i == params->wep_tx_keyidx, NULL, 0, 6038 params->wep_key[i], 6039 params->wep_key_len[i]); 6040 if (params->wep_tx_keyidx != i) 6041 continue; 6042 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0, 6043 params->wep_key[i], params->wep_key_len[i])) { 6044 nlmsg_free(msg); 6045 return -1; 6046 } 6047 } 6048 6049 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6050 if (params->bssid) { 6051 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 6052 MAC2STR(params->bssid)); 6053 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 6054 } 6055 if (params->freq) { 6056 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 6057 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 6058 } 6059 if (params->ssid) { 6060 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 6061 params->ssid, params->ssid_len); 6062 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 6063 params->ssid); 6064 } 6065 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len); 6066 if (params->ie) 6067 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie); 6068 if (params->sae_data) { 6069 wpa_hexdump(MSG_DEBUG, " * SAE data", params->sae_data, 6070 params->sae_data_len); 6071 NLA_PUT(msg, NL80211_ATTR_SAE_DATA, params->sae_data_len, 6072 params->sae_data); 6073 } 6074 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 6075 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 6076 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 6077 type = NL80211_AUTHTYPE_SHARED_KEY; 6078 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 6079 type = NL80211_AUTHTYPE_NETWORK_EAP; 6080 else if (params->auth_alg & WPA_AUTH_ALG_FT) 6081 type = NL80211_AUTHTYPE_FT; 6082 else if (params->auth_alg & WPA_AUTH_ALG_SAE) 6083 type = NL80211_AUTHTYPE_SAE; 6084 else 6085 goto nla_put_failure; 6086 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 6087 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 6088 if (params->local_state_change) { 6089 wpa_printf(MSG_DEBUG, " * Local state change only"); 6090 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 6091 } 6092 6093 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6094 msg = NULL; 6095 if (ret) { 6096 wpa_dbg(drv->ctx, MSG_DEBUG, 6097 "nl80211: MLME command failed (auth): ret=%d (%s)", 6098 ret, strerror(-ret)); 6099 count++; 6100 if (ret == -EALREADY && count == 1 && params->bssid && 6101 !params->local_state_change) { 6102 /* 6103 * mac80211 does not currently accept new 6104 * authentication if we are already authenticated. As a 6105 * workaround, force deauthentication and try again. 6106 */ 6107 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication " 6108 "after forced deauthentication"); 6109 drv->ignore_deauth_event = 1; 6110 wpa_driver_nl80211_deauthenticate( 6111 bss, params->bssid, 6112 WLAN_REASON_PREV_AUTH_NOT_VALID); 6113 nlmsg_free(msg); 6114 goto retry; 6115 } 6116 6117 if (ret == -ENOENT && params->freq && !is_retry) { 6118 /* 6119 * cfg80211 has likely expired the BSS entry even 6120 * though it was previously available in our internal 6121 * BSS table. To recover quickly, start a single 6122 * channel scan on the specified channel. 6123 */ 6124 struct wpa_driver_scan_params scan; 6125 int freqs[2]; 6126 6127 os_memset(&scan, 0, sizeof(scan)); 6128 scan.num_ssids = 1; 6129 if (params->ssid) { 6130 scan.ssids[0].ssid = params->ssid; 6131 scan.ssids[0].ssid_len = params->ssid_len; 6132 } 6133 freqs[0] = params->freq; 6134 freqs[1] = 0; 6135 scan.freqs = freqs; 6136 wpa_printf(MSG_DEBUG, "nl80211: Trigger single " 6137 "channel scan to refresh cfg80211 BSS " 6138 "entry"); 6139 ret = wpa_driver_nl80211_scan(bss, &scan); 6140 if (ret == 0) { 6141 nl80211_copy_auth_params(drv, params); 6142 drv->scan_for_auth = 1; 6143 } 6144 } else if (is_retry) { 6145 /* 6146 * Need to indicate this with an event since the return 6147 * value from the retry is not delivered to core code. 6148 */ 6149 union wpa_event_data event; 6150 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry " 6151 "failed"); 6152 os_memset(&event, 0, sizeof(event)); 6153 os_memcpy(event.timeout_event.addr, drv->auth_bssid_, 6154 ETH_ALEN); 6155 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT, 6156 &event); 6157 } 6158 6159 goto nla_put_failure; 6160 } 6161 ret = 0; 6162 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send " 6163 "successfully"); 6164 6165nla_put_failure: 6166 nlmsg_free(msg); 6167 return ret; 6168} 6169 6170 6171static int wpa_driver_nl80211_authenticate_retry( 6172 struct wpa_driver_nl80211_data *drv) 6173{ 6174 struct wpa_driver_auth_params params; 6175 struct i802_bss *bss = drv->first_bss; 6176 int i; 6177 6178 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again"); 6179 6180 os_memset(¶ms, 0, sizeof(params)); 6181 params.freq = drv->auth_freq; 6182 params.auth_alg = drv->auth_alg; 6183 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx; 6184 params.local_state_change = drv->auth_local_state_change; 6185 params.p2p = drv->auth_p2p; 6186 6187 if (!is_zero_ether_addr(drv->auth_bssid_)) 6188 params.bssid = drv->auth_bssid_; 6189 6190 if (drv->auth_ssid_len) { 6191 params.ssid = drv->auth_ssid; 6192 params.ssid_len = drv->auth_ssid_len; 6193 } 6194 6195 params.ie = drv->auth_ie; 6196 params.ie_len = drv->auth_ie_len; 6197 6198 for (i = 0; i < 4; i++) { 6199 if (drv->auth_wep_key_len[i]) { 6200 params.wep_key[i] = drv->auth_wep_key[i]; 6201 params.wep_key_len[i] = drv->auth_wep_key_len[i]; 6202 } 6203 } 6204 6205 drv->retry_auth = 1; 6206 return wpa_driver_nl80211_authenticate(bss, ¶ms); 6207} 6208 6209 6210struct phy_info_arg { 6211 u16 *num_modes; 6212 struct hostapd_hw_modes *modes; 6213 int last_mode, last_chan_idx; 6214}; 6215 6216static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa, 6217 struct nlattr *ampdu_factor, 6218 struct nlattr *ampdu_density, 6219 struct nlattr *mcs_set) 6220{ 6221 if (capa) 6222 mode->ht_capab = nla_get_u16(capa); 6223 6224 if (ampdu_factor) 6225 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03; 6226 6227 if (ampdu_density) 6228 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2; 6229 6230 if (mcs_set && nla_len(mcs_set) >= 16) { 6231 u8 *mcs; 6232 mcs = nla_data(mcs_set); 6233 os_memcpy(mode->mcs_set, mcs, 16); 6234 } 6235} 6236 6237 6238static void phy_info_vht_capa(struct hostapd_hw_modes *mode, 6239 struct nlattr *capa, 6240 struct nlattr *mcs_set) 6241{ 6242 if (capa) 6243 mode->vht_capab = nla_get_u32(capa); 6244 6245 if (mcs_set && nla_len(mcs_set) >= 8) { 6246 u8 *mcs; 6247 mcs = nla_data(mcs_set); 6248 os_memcpy(mode->vht_mcs_set, mcs, 8); 6249 } 6250} 6251 6252 6253static void phy_info_freq(struct hostapd_hw_modes *mode, 6254 struct hostapd_channel_data *chan, 6255 struct nlattr *tb_freq[]) 6256{ 6257 u8 channel; 6258 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]); 6259 chan->flag = 0; 6260 chan->dfs_cac_ms = 0; 6261 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES) 6262 chan->chan = channel; 6263 6264 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) 6265 chan->flag |= HOSTAPD_CHAN_DISABLED; 6266 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IR]) 6267 chan->flag |= HOSTAPD_CHAN_PASSIVE_SCAN | HOSTAPD_CHAN_NO_IBSS; 6268 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR]) 6269 chan->flag |= HOSTAPD_CHAN_RADAR; 6270 6271 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) { 6272 enum nl80211_dfs_state state = 6273 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]); 6274 6275 switch (state) { 6276 case NL80211_DFS_USABLE: 6277 chan->flag |= HOSTAPD_CHAN_DFS_USABLE; 6278 break; 6279 case NL80211_DFS_AVAILABLE: 6280 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE; 6281 break; 6282 case NL80211_DFS_UNAVAILABLE: 6283 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE; 6284 break; 6285 } 6286 } 6287 6288 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME]) { 6289 chan->dfs_cac_ms = nla_get_u32( 6290 tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME]); 6291 } 6292} 6293 6294 6295static int phy_info_freqs(struct phy_info_arg *phy_info, 6296 struct hostapd_hw_modes *mode, struct nlattr *tb) 6297{ 6298 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 6299 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 }, 6300 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG }, 6301 [NL80211_FREQUENCY_ATTR_NO_IR] = { .type = NLA_FLAG }, 6302 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG }, 6303 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 }, 6304 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 }, 6305 }; 6306 int new_channels = 0; 6307 struct hostapd_channel_data *channel; 6308 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1]; 6309 struct nlattr *nl_freq; 6310 int rem_freq, idx; 6311 6312 if (tb == NULL) 6313 return NL_OK; 6314 6315 nla_for_each_nested(nl_freq, tb, rem_freq) { 6316 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 6317 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 6318 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 6319 continue; 6320 new_channels++; 6321 } 6322 6323 channel = os_realloc_array(mode->channels, 6324 mode->num_channels + new_channels, 6325 sizeof(struct hostapd_channel_data)); 6326 if (!channel) 6327 return NL_SKIP; 6328 6329 mode->channels = channel; 6330 mode->num_channels += new_channels; 6331 6332 idx = phy_info->last_chan_idx; 6333 6334 nla_for_each_nested(nl_freq, tb, rem_freq) { 6335 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 6336 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 6337 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 6338 continue; 6339 phy_info_freq(mode, &mode->channels[idx], tb_freq); 6340 idx++; 6341 } 6342 phy_info->last_chan_idx = idx; 6343 6344 return NL_OK; 6345} 6346 6347 6348static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb) 6349{ 6350 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = { 6351 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 }, 6352 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = 6353 { .type = NLA_FLAG }, 6354 }; 6355 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1]; 6356 struct nlattr *nl_rate; 6357 int rem_rate, idx; 6358 6359 if (tb == NULL) 6360 return NL_OK; 6361 6362 nla_for_each_nested(nl_rate, tb, rem_rate) { 6363 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 6364 nla_data(nl_rate), nla_len(nl_rate), 6365 rate_policy); 6366 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 6367 continue; 6368 mode->num_rates++; 6369 } 6370 6371 mode->rates = os_calloc(mode->num_rates, sizeof(int)); 6372 if (!mode->rates) 6373 return NL_SKIP; 6374 6375 idx = 0; 6376 6377 nla_for_each_nested(nl_rate, tb, rem_rate) { 6378 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 6379 nla_data(nl_rate), nla_len(nl_rate), 6380 rate_policy); 6381 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 6382 continue; 6383 mode->rates[idx] = nla_get_u32( 6384 tb_rate[NL80211_BITRATE_ATTR_RATE]); 6385 idx++; 6386 } 6387 6388 return NL_OK; 6389} 6390 6391 6392static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band) 6393{ 6394 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1]; 6395 struct hostapd_hw_modes *mode; 6396 int ret; 6397 6398 if (phy_info->last_mode != nl_band->nla_type) { 6399 mode = os_realloc_array(phy_info->modes, 6400 *phy_info->num_modes + 1, 6401 sizeof(*mode)); 6402 if (!mode) 6403 return NL_SKIP; 6404 phy_info->modes = mode; 6405 6406 mode = &phy_info->modes[*(phy_info->num_modes)]; 6407 os_memset(mode, 0, sizeof(*mode)); 6408 mode->mode = NUM_HOSTAPD_MODES; 6409 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN | 6410 HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN; 6411 6412 /* 6413 * Unsupported VHT MCS stream is defined as value 3, so the VHT 6414 * MCS RX/TX map must be initialized with 0xffff to mark all 8 6415 * possible streams as unsupported. This will be overridden if 6416 * driver advertises VHT support. 6417 */ 6418 mode->vht_mcs_set[0] = 0xff; 6419 mode->vht_mcs_set[1] = 0xff; 6420 mode->vht_mcs_set[4] = 0xff; 6421 mode->vht_mcs_set[5] = 0xff; 6422 6423 *(phy_info->num_modes) += 1; 6424 phy_info->last_mode = nl_band->nla_type; 6425 phy_info->last_chan_idx = 0; 6426 } else 6427 mode = &phy_info->modes[*(phy_info->num_modes) - 1]; 6428 6429 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band), 6430 nla_len(nl_band), NULL); 6431 6432 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA], 6433 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR], 6434 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY], 6435 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]); 6436 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA], 6437 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]); 6438 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]); 6439 if (ret != NL_OK) 6440 return ret; 6441 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]); 6442 if (ret != NL_OK) 6443 return ret; 6444 6445 return NL_OK; 6446} 6447 6448 6449static int phy_info_handler(struct nl_msg *msg, void *arg) 6450{ 6451 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 6452 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 6453 struct phy_info_arg *phy_info = arg; 6454 struct nlattr *nl_band; 6455 int rem_band; 6456 6457 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 6458 genlmsg_attrlen(gnlh, 0), NULL); 6459 6460 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS]) 6461 return NL_SKIP; 6462 6463 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) 6464 { 6465 int res = phy_info_band(phy_info, nl_band); 6466 if (res != NL_OK) 6467 return res; 6468 } 6469 6470 return NL_SKIP; 6471} 6472 6473 6474static struct hostapd_hw_modes * 6475wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes, 6476 u16 *num_modes) 6477{ 6478 u16 m; 6479 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode; 6480 int i, mode11g_idx = -1; 6481 6482 /* heuristic to set up modes */ 6483 for (m = 0; m < *num_modes; m++) { 6484 if (!modes[m].num_channels) 6485 continue; 6486 if (modes[m].channels[0].freq < 4000) { 6487 modes[m].mode = HOSTAPD_MODE_IEEE80211B; 6488 for (i = 0; i < modes[m].num_rates; i++) { 6489 if (modes[m].rates[i] > 200) { 6490 modes[m].mode = HOSTAPD_MODE_IEEE80211G; 6491 break; 6492 } 6493 } 6494 } else if (modes[m].channels[0].freq > 50000) 6495 modes[m].mode = HOSTAPD_MODE_IEEE80211AD; 6496 else 6497 modes[m].mode = HOSTAPD_MODE_IEEE80211A; 6498 } 6499 6500 /* If only 802.11g mode is included, use it to construct matching 6501 * 802.11b mode data. */ 6502 6503 for (m = 0; m < *num_modes; m++) { 6504 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B) 6505 return modes; /* 802.11b already included */ 6506 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G) 6507 mode11g_idx = m; 6508 } 6509 6510 if (mode11g_idx < 0) 6511 return modes; /* 2.4 GHz band not supported at all */ 6512 6513 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes)); 6514 if (nmodes == NULL) 6515 return modes; /* Could not add 802.11b mode */ 6516 6517 mode = &nmodes[*num_modes]; 6518 os_memset(mode, 0, sizeof(*mode)); 6519 (*num_modes)++; 6520 modes = nmodes; 6521 6522 mode->mode = HOSTAPD_MODE_IEEE80211B; 6523 6524 mode11g = &modes[mode11g_idx]; 6525 mode->num_channels = mode11g->num_channels; 6526 mode->channels = os_malloc(mode11g->num_channels * 6527 sizeof(struct hostapd_channel_data)); 6528 if (mode->channels == NULL) { 6529 (*num_modes)--; 6530 return modes; /* Could not add 802.11b mode */ 6531 } 6532 os_memcpy(mode->channels, mode11g->channels, 6533 mode11g->num_channels * sizeof(struct hostapd_channel_data)); 6534 6535 mode->num_rates = 0; 6536 mode->rates = os_malloc(4 * sizeof(int)); 6537 if (mode->rates == NULL) { 6538 os_free(mode->channels); 6539 (*num_modes)--; 6540 return modes; /* Could not add 802.11b mode */ 6541 } 6542 6543 for (i = 0; i < mode11g->num_rates; i++) { 6544 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 && 6545 mode11g->rates[i] != 55 && mode11g->rates[i] != 110) 6546 continue; 6547 mode->rates[mode->num_rates] = mode11g->rates[i]; 6548 mode->num_rates++; 6549 if (mode->num_rates == 4) 6550 break; 6551 } 6552 6553 if (mode->num_rates == 0) { 6554 os_free(mode->channels); 6555 os_free(mode->rates); 6556 (*num_modes)--; 6557 return modes; /* No 802.11b rates */ 6558 } 6559 6560 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g " 6561 "information"); 6562 6563 return modes; 6564} 6565 6566 6567static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start, 6568 int end) 6569{ 6570 int c; 6571 6572 for (c = 0; c < mode->num_channels; c++) { 6573 struct hostapd_channel_data *chan = &mode->channels[c]; 6574 if (chan->freq - 10 >= start && chan->freq + 10 <= end) 6575 chan->flag |= HOSTAPD_CHAN_HT40; 6576 } 6577} 6578 6579 6580static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start, 6581 int end) 6582{ 6583 int c; 6584 6585 for (c = 0; c < mode->num_channels; c++) { 6586 struct hostapd_channel_data *chan = &mode->channels[c]; 6587 if (!(chan->flag & HOSTAPD_CHAN_HT40)) 6588 continue; 6589 if (chan->freq - 30 >= start && chan->freq - 10 <= end) 6590 chan->flag |= HOSTAPD_CHAN_HT40MINUS; 6591 if (chan->freq + 10 >= start && chan->freq + 30 <= end) 6592 chan->flag |= HOSTAPD_CHAN_HT40PLUS; 6593 } 6594} 6595 6596 6597static void nl80211_reg_rule_max_eirp(u32 start, u32 end, u32 max_eirp, 6598 struct phy_info_arg *results) 6599{ 6600 u16 m; 6601 6602 for (m = 0; m < *results->num_modes; m++) { 6603 int c; 6604 struct hostapd_hw_modes *mode = &results->modes[m]; 6605 6606 for (c = 0; c < mode->num_channels; c++) { 6607 struct hostapd_channel_data *chan = &mode->channels[c]; 6608 if ((u32) chan->freq - 10 >= start && 6609 (u32) chan->freq + 10 <= end) 6610 chan->max_tx_power = max_eirp; 6611 } 6612 } 6613} 6614 6615 6616static void nl80211_reg_rule_ht40(u32 start, u32 end, 6617 struct phy_info_arg *results) 6618{ 6619 u16 m; 6620 6621 for (m = 0; m < *results->num_modes; m++) { 6622 if (!(results->modes[m].ht_capab & 6623 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6624 continue; 6625 nl80211_set_ht40_mode(&results->modes[m], start, end); 6626 } 6627} 6628 6629 6630static void nl80211_reg_rule_sec(struct nlattr *tb[], 6631 struct phy_info_arg *results) 6632{ 6633 u32 start, end, max_bw; 6634 u16 m; 6635 6636 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6637 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 6638 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 6639 return; 6640 6641 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6642 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6643 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6644 6645 if (max_bw < 20) 6646 return; 6647 6648 for (m = 0; m < *results->num_modes; m++) { 6649 if (!(results->modes[m].ht_capab & 6650 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6651 continue; 6652 nl80211_set_ht40_mode_sec(&results->modes[m], start, end); 6653 } 6654} 6655 6656 6657static void nl80211_set_vht_mode(struct hostapd_hw_modes *mode, int start, 6658 int end) 6659{ 6660 int c; 6661 6662 for (c = 0; c < mode->num_channels; c++) { 6663 struct hostapd_channel_data *chan = &mode->channels[c]; 6664 if (chan->freq - 10 >= start && chan->freq + 70 <= end) 6665 chan->flag |= HOSTAPD_CHAN_VHT_10_70; 6666 6667 if (chan->freq - 30 >= start && chan->freq + 50 <= end) 6668 chan->flag |= HOSTAPD_CHAN_VHT_30_50; 6669 6670 if (chan->freq - 50 >= start && chan->freq + 30 <= end) 6671 chan->flag |= HOSTAPD_CHAN_VHT_50_30; 6672 6673 if (chan->freq - 70 >= start && chan->freq + 10 <= end) 6674 chan->flag |= HOSTAPD_CHAN_VHT_70_10; 6675 } 6676} 6677 6678 6679static void nl80211_reg_rule_vht(struct nlattr *tb[], 6680 struct phy_info_arg *results) 6681{ 6682 u32 start, end, max_bw; 6683 u16 m; 6684 6685 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6686 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 6687 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 6688 return; 6689 6690 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6691 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6692 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6693 6694 if (max_bw < 80) 6695 return; 6696 6697 for (m = 0; m < *results->num_modes; m++) { 6698 if (!(results->modes[m].ht_capab & 6699 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6700 continue; 6701 /* TODO: use a real VHT support indication */ 6702 if (!results->modes[m].vht_capab) 6703 continue; 6704 6705 nl80211_set_vht_mode(&results->modes[m], start, end); 6706 } 6707} 6708 6709 6710static const char * dfs_domain_name(enum nl80211_dfs_regions region) 6711{ 6712 switch (region) { 6713 case NL80211_DFS_UNSET: 6714 return "DFS-UNSET"; 6715 case NL80211_DFS_FCC: 6716 return "DFS-FCC"; 6717 case NL80211_DFS_ETSI: 6718 return "DFS-ETSI"; 6719 case NL80211_DFS_JP: 6720 return "DFS-JP"; 6721 default: 6722 return "DFS-invalid"; 6723 } 6724} 6725 6726 6727static int nl80211_get_reg(struct nl_msg *msg, void *arg) 6728{ 6729 struct phy_info_arg *results = arg; 6730 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 6731 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 6732 struct nlattr *nl_rule; 6733 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1]; 6734 int rem_rule; 6735 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 6736 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, 6737 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, 6738 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, 6739 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, 6740 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, 6741 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, 6742 }; 6743 6744 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 6745 genlmsg_attrlen(gnlh, 0), NULL); 6746 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] || 6747 !tb_msg[NL80211_ATTR_REG_RULES]) { 6748 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information " 6749 "available"); 6750 return NL_SKIP; 6751 } 6752 6753 if (tb_msg[NL80211_ATTR_DFS_REGION]) { 6754 enum nl80211_dfs_regions dfs_domain; 6755 dfs_domain = nla_get_u8(tb_msg[NL80211_ATTR_DFS_REGION]); 6756 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s (%s)", 6757 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]), 6758 dfs_domain_name(dfs_domain)); 6759 } else { 6760 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s", 6761 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2])); 6762 } 6763 6764 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6765 { 6766 u32 start, end, max_eirp = 0, max_bw = 0, flags = 0; 6767 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6768 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6769 if (tb_rule[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6770 tb_rule[NL80211_ATTR_FREQ_RANGE_END] == NULL) 6771 continue; 6772 start = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6773 end = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6774 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) 6775 max_eirp = nla_get_u32(tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) / 100; 6776 if (tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) 6777 max_bw = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6778 if (tb_rule[NL80211_ATTR_REG_RULE_FLAGS]) 6779 flags = nla_get_u32(tb_rule[NL80211_ATTR_REG_RULE_FLAGS]); 6780 6781 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz %u mBm%s%s%s%s%s%s%s%s", 6782 start, end, max_bw, max_eirp, 6783 flags & NL80211_RRF_NO_OFDM ? " (no OFDM)" : "", 6784 flags & NL80211_RRF_NO_CCK ? " (no CCK)" : "", 6785 flags & NL80211_RRF_NO_INDOOR ? " (no indoor)" : "", 6786 flags & NL80211_RRF_NO_OUTDOOR ? " (no outdoor)" : 6787 "", 6788 flags & NL80211_RRF_DFS ? " (DFS)" : "", 6789 flags & NL80211_RRF_PTP_ONLY ? " (PTP only)" : "", 6790 flags & NL80211_RRF_PTMP_ONLY ? " (PTMP only)" : "", 6791 flags & NL80211_RRF_NO_IR ? " (no IR)" : ""); 6792 if (max_bw >= 40) 6793 nl80211_reg_rule_ht40(start, end, results); 6794 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) 6795 nl80211_reg_rule_max_eirp(start, end, max_eirp, 6796 results); 6797 } 6798 6799 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6800 { 6801 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6802 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6803 nl80211_reg_rule_sec(tb_rule, results); 6804 } 6805 6806 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6807 { 6808 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6809 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6810 nl80211_reg_rule_vht(tb_rule, results); 6811 } 6812 6813 return NL_SKIP; 6814} 6815 6816 6817static int nl80211_set_regulatory_flags(struct wpa_driver_nl80211_data *drv, 6818 struct phy_info_arg *results) 6819{ 6820 struct nl_msg *msg; 6821 6822 msg = nlmsg_alloc(); 6823 if (!msg) 6824 return -ENOMEM; 6825 6826 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 6827 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results); 6828} 6829 6830 6831static struct hostapd_hw_modes * 6832wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags) 6833{ 6834 u32 feat; 6835 struct i802_bss *bss = priv; 6836 struct wpa_driver_nl80211_data *drv = bss->drv; 6837 struct nl_msg *msg; 6838 struct phy_info_arg result = { 6839 .num_modes = num_modes, 6840 .modes = NULL, 6841 .last_mode = -1, 6842 }; 6843 6844 *num_modes = 0; 6845 *flags = 0; 6846 6847 msg = nlmsg_alloc(); 6848 if (!msg) 6849 return NULL; 6850 6851 feat = get_nl80211_protocol_features(drv); 6852 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 6853 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 6854 else 6855 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 6856 6857 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 6858 if (nl80211_set_iface_id(msg, bss) < 0) 6859 goto nla_put_failure; 6860 6861 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) { 6862 nl80211_set_regulatory_flags(drv, &result); 6863 return wpa_driver_nl80211_postprocess_modes(result.modes, 6864 num_modes); 6865 } 6866 msg = NULL; 6867 nla_put_failure: 6868 nlmsg_free(msg); 6869 return NULL; 6870} 6871 6872 6873static int wpa_driver_nl80211_send_mntr(struct wpa_driver_nl80211_data *drv, 6874 const void *data, size_t len, 6875 int encrypt, int noack) 6876{ 6877 __u8 rtap_hdr[] = { 6878 0x00, 0x00, /* radiotap version */ 6879 0x0e, 0x00, /* radiotap length */ 6880 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */ 6881 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */ 6882 0x00, /* padding */ 6883 0x00, 0x00, /* RX and TX flags to indicate that */ 6884 0x00, 0x00, /* this is the injected frame directly */ 6885 }; 6886 struct iovec iov[2] = { 6887 { 6888 .iov_base = &rtap_hdr, 6889 .iov_len = sizeof(rtap_hdr), 6890 }, 6891 { 6892 .iov_base = (void *) data, 6893 .iov_len = len, 6894 } 6895 }; 6896 struct msghdr msg = { 6897 .msg_name = NULL, 6898 .msg_namelen = 0, 6899 .msg_iov = iov, 6900 .msg_iovlen = 2, 6901 .msg_control = NULL, 6902 .msg_controllen = 0, 6903 .msg_flags = 0, 6904 }; 6905 int res; 6906 u16 txflags = 0; 6907 6908 if (encrypt) 6909 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP; 6910 6911 if (drv->monitor_sock < 0) { 6912 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available " 6913 "for %s", __func__); 6914 return -1; 6915 } 6916 6917 if (noack) 6918 txflags |= IEEE80211_RADIOTAP_F_TX_NOACK; 6919 WPA_PUT_LE16(&rtap_hdr[12], txflags); 6920 6921 res = sendmsg(drv->monitor_sock, &msg, 0); 6922 if (res < 0) { 6923 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno)); 6924 return -1; 6925 } 6926 return 0; 6927} 6928 6929 6930static int wpa_driver_nl80211_send_frame(struct i802_bss *bss, 6931 const void *data, size_t len, 6932 int encrypt, int noack, 6933 unsigned int freq, int no_cck, 6934 int offchanok, unsigned int wait_time) 6935{ 6936 struct wpa_driver_nl80211_data *drv = bss->drv; 6937 u64 cookie; 6938 int res; 6939 6940 if (freq == 0) { 6941 wpa_printf(MSG_DEBUG, "nl80211: send_frame - Use bss->freq=%u", 6942 bss->freq); 6943 freq = bss->freq; 6944 } 6945 6946 if (drv->use_monitor) { 6947 wpa_printf(MSG_DEBUG, "nl80211: send_frame(freq=%u bss->freq=%u) -> send_mntr", 6948 freq, bss->freq); 6949 return wpa_driver_nl80211_send_mntr(drv, data, len, 6950 encrypt, noack); 6951 } 6952 6953 wpa_printf(MSG_DEBUG, "nl80211: send_frame -> send_frame_cmd"); 6954 res = nl80211_send_frame_cmd(bss, freq, wait_time, data, len, 6955 &cookie, no_cck, noack, offchanok); 6956 if (res == 0 && !noack) { 6957 const struct ieee80211_mgmt *mgmt; 6958 u16 fc; 6959 6960 mgmt = (const struct ieee80211_mgmt *) data; 6961 fc = le_to_host16(mgmt->frame_control); 6962 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6963 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_ACTION) { 6964 wpa_printf(MSG_MSGDUMP, 6965 "nl80211: Update send_action_cookie from 0x%llx to 0x%llx", 6966 (long long unsigned int) 6967 drv->send_action_cookie, 6968 (long long unsigned int) cookie); 6969 drv->send_action_cookie = cookie; 6970 } 6971 } 6972 6973 return res; 6974} 6975 6976 6977static int wpa_driver_nl80211_send_mlme(struct i802_bss *bss, const u8 *data, 6978 size_t data_len, int noack, 6979 unsigned int freq, int no_cck, 6980 int offchanok, 6981 unsigned int wait_time) 6982{ 6983 struct wpa_driver_nl80211_data *drv = bss->drv; 6984 struct ieee80211_mgmt *mgmt; 6985 int encrypt = 1; 6986 u16 fc; 6987 6988 mgmt = (struct ieee80211_mgmt *) data; 6989 fc = le_to_host16(mgmt->frame_control); 6990 wpa_printf(MSG_DEBUG, "nl80211: send_mlme - noack=%d freq=%u no_cck=%d offchanok=%d wait_time=%u fc=0x%x nlmode=%d", 6991 noack, freq, no_cck, offchanok, wait_time, fc, drv->nlmode); 6992 6993 if ((is_sta_interface(drv->nlmode) || 6994 drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) && 6995 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6996 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) { 6997 /* 6998 * The use of last_mgmt_freq is a bit of a hack, 6999 * but it works due to the single-threaded nature 7000 * of wpa_supplicant. 7001 */ 7002 if (freq == 0) { 7003 wpa_printf(MSG_DEBUG, "nl80211: Use last_mgmt_freq=%d", 7004 drv->last_mgmt_freq); 7005 freq = drv->last_mgmt_freq; 7006 } 7007 return nl80211_send_frame_cmd(bss, freq, 0, 7008 data, data_len, NULL, 1, noack, 7009 1); 7010 } 7011 7012 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) { 7013 if (freq == 0) { 7014 wpa_printf(MSG_DEBUG, "nl80211: Use bss->freq=%d", 7015 bss->freq); 7016 freq = bss->freq; 7017 } 7018 return nl80211_send_frame_cmd(bss, freq, 7019 (int) freq == bss->freq ? 0 : 7020 wait_time, 7021 data, data_len, 7022 &drv->send_action_cookie, 7023 no_cck, noack, offchanok); 7024 } 7025 7026 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 7027 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) { 7028 /* 7029 * Only one of the authentication frame types is encrypted. 7030 * In order for static WEP encryption to work properly (i.e., 7031 * to not encrypt the frame), we need to tell mac80211 about 7032 * the frames that must not be encrypted. 7033 */ 7034 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg); 7035 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction); 7036 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3) 7037 encrypt = 0; 7038 } 7039 7040 wpa_printf(MSG_DEBUG, "nl80211: send_mlme -> send_frame"); 7041 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 7042 noack, freq, no_cck, offchanok, 7043 wait_time); 7044} 7045 7046 7047static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble, 7048 int slot, int ht_opmode, int ap_isolate, 7049 int *basic_rates) 7050{ 7051 struct wpa_driver_nl80211_data *drv = bss->drv; 7052 struct nl_msg *msg; 7053 7054 msg = nlmsg_alloc(); 7055 if (!msg) 7056 return -ENOMEM; 7057 7058 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS); 7059 7060 if (cts >= 0) 7061 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts); 7062 if (preamble >= 0) 7063 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble); 7064 if (slot >= 0) 7065 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot); 7066 if (ht_opmode >= 0) 7067 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode); 7068 if (ap_isolate >= 0) 7069 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate); 7070 7071 if (basic_rates) { 7072 u8 rates[NL80211_MAX_SUPP_RATES]; 7073 u8 rates_len = 0; 7074 int i; 7075 7076 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; 7077 i++) 7078 rates[rates_len++] = basic_rates[i] / 5; 7079 7080 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates); 7081 } 7082 7083 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 7084 7085 return send_and_recv_msgs(drv, msg, NULL, NULL); 7086 nla_put_failure: 7087 nlmsg_free(msg); 7088 return -ENOBUFS; 7089} 7090 7091 7092static int wpa_driver_nl80211_set_acl(void *priv, 7093 struct hostapd_acl_params *params) 7094{ 7095 struct i802_bss *bss = priv; 7096 struct wpa_driver_nl80211_data *drv = bss->drv; 7097 struct nl_msg *msg; 7098 struct nlattr *acl; 7099 unsigned int i; 7100 int ret = 0; 7101 7102 if (!(drv->capa.max_acl_mac_addrs)) 7103 return -ENOTSUP; 7104 7105 if (params->num_mac_acl > drv->capa.max_acl_mac_addrs) 7106 return -ENOTSUP; 7107 7108 msg = nlmsg_alloc(); 7109 if (!msg) 7110 return -ENOMEM; 7111 7112 wpa_printf(MSG_DEBUG, "nl80211: Set %s ACL (num_mac_acl=%u)", 7113 params->acl_policy ? "Accept" : "Deny", params->num_mac_acl); 7114 7115 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_MAC_ACL); 7116 7117 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7118 7119 NLA_PUT_U32(msg, NL80211_ATTR_ACL_POLICY, params->acl_policy ? 7120 NL80211_ACL_POLICY_DENY_UNLESS_LISTED : 7121 NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED); 7122 7123 acl = nla_nest_start(msg, NL80211_ATTR_MAC_ADDRS); 7124 if (acl == NULL) 7125 goto nla_put_failure; 7126 7127 for (i = 0; i < params->num_mac_acl; i++) 7128 NLA_PUT(msg, i + 1, ETH_ALEN, params->mac_acl[i].addr); 7129 7130 nla_nest_end(msg, acl); 7131 7132 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7133 msg = NULL; 7134 if (ret) { 7135 wpa_printf(MSG_DEBUG, "nl80211: Failed to set MAC ACL: %d (%s)", 7136 ret, strerror(-ret)); 7137 } 7138 7139nla_put_failure: 7140 nlmsg_free(msg); 7141 7142 return ret; 7143} 7144 7145 7146static int wpa_driver_nl80211_set_ap(void *priv, 7147 struct wpa_driver_ap_params *params) 7148{ 7149 struct i802_bss *bss = priv; 7150 struct wpa_driver_nl80211_data *drv = bss->drv; 7151 struct nl_msg *msg; 7152 u8 cmd = NL80211_CMD_NEW_BEACON; 7153 int ret; 7154 int beacon_set; 7155 int ifindex = if_nametoindex(bss->ifname); 7156 int num_suites; 7157 u32 suites[10], suite; 7158 u32 ver; 7159 7160 beacon_set = bss->beacon_set; 7161 7162 msg = nlmsg_alloc(); 7163 if (!msg) 7164 return -ENOMEM; 7165 7166 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)", 7167 beacon_set); 7168 if (beacon_set) 7169 cmd = NL80211_CMD_SET_BEACON; 7170 7171 nl80211_cmd(drv, msg, 0, cmd); 7172 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon head", 7173 params->head, params->head_len); 7174 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head); 7175 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon tail", 7176 params->tail, params->tail_len); 7177 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail); 7178 wpa_printf(MSG_DEBUG, "nl80211: ifindex=%d", ifindex); 7179 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 7180 wpa_printf(MSG_DEBUG, "nl80211: beacon_int=%d", params->beacon_int); 7181 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int); 7182 wpa_printf(MSG_DEBUG, "nl80211: dtim_period=%d", params->dtim_period); 7183 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period); 7184 wpa_hexdump_ascii(MSG_DEBUG, "nl80211: ssid", 7185 params->ssid, params->ssid_len); 7186 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7187 params->ssid); 7188 if (params->proberesp && params->proberesp_len) { 7189 wpa_hexdump(MSG_DEBUG, "nl80211: proberesp (offload)", 7190 params->proberesp, params->proberesp_len); 7191 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len, 7192 params->proberesp); 7193 } 7194 switch (params->hide_ssid) { 7195 case NO_SSID_HIDING: 7196 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID not in use"); 7197 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 7198 NL80211_HIDDEN_SSID_NOT_IN_USE); 7199 break; 7200 case HIDDEN_SSID_ZERO_LEN: 7201 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero len"); 7202 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 7203 NL80211_HIDDEN_SSID_ZERO_LEN); 7204 break; 7205 case HIDDEN_SSID_ZERO_CONTENTS: 7206 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero contents"); 7207 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 7208 NL80211_HIDDEN_SSID_ZERO_CONTENTS); 7209 break; 7210 } 7211 wpa_printf(MSG_DEBUG, "nl80211: privacy=%d", params->privacy); 7212 if (params->privacy) 7213 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 7214 wpa_printf(MSG_DEBUG, "nl80211: auth_algs=0x%x", params->auth_algs); 7215 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) == 7216 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) { 7217 /* Leave out the attribute */ 7218 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED) 7219 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 7220 NL80211_AUTHTYPE_SHARED_KEY); 7221 else 7222 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 7223 NL80211_AUTHTYPE_OPEN_SYSTEM); 7224 7225 wpa_printf(MSG_DEBUG, "nl80211: wpa_version=0x%x", params->wpa_version); 7226 ver = 0; 7227 if (params->wpa_version & WPA_PROTO_WPA) 7228 ver |= NL80211_WPA_VERSION_1; 7229 if (params->wpa_version & WPA_PROTO_RSN) 7230 ver |= NL80211_WPA_VERSION_2; 7231 if (ver) 7232 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 7233 7234 wpa_printf(MSG_DEBUG, "nl80211: key_mgmt_suites=0x%x", 7235 params->key_mgmt_suites); 7236 num_suites = 0; 7237 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X) 7238 suites[num_suites++] = WLAN_AKM_SUITE_8021X; 7239 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK) 7240 suites[num_suites++] = WLAN_AKM_SUITE_PSK; 7241 if (num_suites) { 7242 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES, 7243 num_suites * sizeof(u32), suites); 7244 } 7245 7246 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X && 7247 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)) 7248 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT); 7249 7250 wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x", 7251 params->pairwise_ciphers); 7252 num_suites = wpa_cipher_to_cipher_suites(params->pairwise_ciphers, 7253 suites, ARRAY_SIZE(suites)); 7254 if (num_suites) { 7255 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, 7256 num_suites * sizeof(u32), suites); 7257 } 7258 7259 wpa_printf(MSG_DEBUG, "nl80211: group_cipher=0x%x", 7260 params->group_cipher); 7261 suite = wpa_cipher_to_cipher_suite(params->group_cipher); 7262 if (suite) 7263 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, suite); 7264 7265 if (params->beacon_ies) { 7266 wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies", 7267 params->beacon_ies); 7268 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies), 7269 wpabuf_head(params->beacon_ies)); 7270 } 7271 if (params->proberesp_ies) { 7272 wpa_hexdump_buf(MSG_DEBUG, "nl80211: proberesp_ies", 7273 params->proberesp_ies); 7274 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, 7275 wpabuf_len(params->proberesp_ies), 7276 wpabuf_head(params->proberesp_ies)); 7277 } 7278 if (params->assocresp_ies) { 7279 wpa_hexdump_buf(MSG_DEBUG, "nl80211: assocresp_ies", 7280 params->assocresp_ies); 7281 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP, 7282 wpabuf_len(params->assocresp_ies), 7283 wpabuf_head(params->assocresp_ies)); 7284 } 7285 7286 if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) { 7287 wpa_printf(MSG_DEBUG, "nl80211: ap_max_inactivity=%d", 7288 params->ap_max_inactivity); 7289 NLA_PUT_U16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT, 7290 params->ap_max_inactivity); 7291 } 7292 7293 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7294 if (ret) { 7295 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)", 7296 ret, strerror(-ret)); 7297 } else { 7298 bss->beacon_set = 1; 7299 nl80211_set_bss(bss, params->cts_protect, params->preamble, 7300 params->short_slot_time, params->ht_opmode, 7301 params->isolate, params->basic_rates); 7302 } 7303 return ret; 7304 nla_put_failure: 7305 nlmsg_free(msg); 7306 return -ENOBUFS; 7307} 7308 7309 7310static int nl80211_put_freq_params(struct nl_msg *msg, 7311 struct hostapd_freq_params *freq) 7312{ 7313 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); 7314 if (freq->vht_enabled) { 7315 switch (freq->bandwidth) { 7316 case 20: 7317 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7318 NL80211_CHAN_WIDTH_20); 7319 break; 7320 case 40: 7321 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7322 NL80211_CHAN_WIDTH_40); 7323 break; 7324 case 80: 7325 if (freq->center_freq2) 7326 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7327 NL80211_CHAN_WIDTH_80P80); 7328 else 7329 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7330 NL80211_CHAN_WIDTH_80); 7331 break; 7332 case 160: 7333 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7334 NL80211_CHAN_WIDTH_160); 7335 break; 7336 default: 7337 return -EINVAL; 7338 } 7339 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); 7340 if (freq->center_freq2) 7341 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, 7342 freq->center_freq2); 7343 } else if (freq->ht_enabled) { 7344 switch (freq->sec_channel_offset) { 7345 case -1: 7346 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 7347 NL80211_CHAN_HT40MINUS); 7348 break; 7349 case 1: 7350 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 7351 NL80211_CHAN_HT40PLUS); 7352 break; 7353 default: 7354 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 7355 NL80211_CHAN_HT20); 7356 break; 7357 } 7358 } 7359 return 0; 7360 7361nla_put_failure: 7362 return -ENOBUFS; 7363} 7364 7365 7366static int wpa_driver_nl80211_set_freq(struct i802_bss *bss, 7367 struct hostapd_freq_params *freq) 7368{ 7369 struct wpa_driver_nl80211_data *drv = bss->drv; 7370 struct nl_msg *msg; 7371 int ret; 7372 7373 wpa_printf(MSG_DEBUG, 7374 "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d, bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)", 7375 freq->freq, freq->ht_enabled, freq->vht_enabled, 7376 freq->bandwidth, freq->center_freq1, freq->center_freq2); 7377 msg = nlmsg_alloc(); 7378 if (!msg) 7379 return -1; 7380 7381 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 7382 7383 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7384 if (nl80211_put_freq_params(msg, freq) < 0) 7385 goto nla_put_failure; 7386 7387 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7388 msg = NULL; 7389 if (ret == 0) { 7390 bss->freq = freq->freq; 7391 return 0; 7392 } 7393 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): " 7394 "%d (%s)", freq->freq, ret, strerror(-ret)); 7395nla_put_failure: 7396 nlmsg_free(msg); 7397 return -1; 7398} 7399 7400 7401static u32 sta_flags_nl80211(int flags) 7402{ 7403 u32 f = 0; 7404 7405 if (flags & WPA_STA_AUTHORIZED) 7406 f |= BIT(NL80211_STA_FLAG_AUTHORIZED); 7407 if (flags & WPA_STA_WMM) 7408 f |= BIT(NL80211_STA_FLAG_WME); 7409 if (flags & WPA_STA_SHORT_PREAMBLE) 7410 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); 7411 if (flags & WPA_STA_MFP) 7412 f |= BIT(NL80211_STA_FLAG_MFP); 7413 if (flags & WPA_STA_TDLS_PEER) 7414 f |= BIT(NL80211_STA_FLAG_TDLS_PEER); 7415 7416 return f; 7417} 7418 7419 7420static int wpa_driver_nl80211_sta_add(void *priv, 7421 struct hostapd_sta_add_params *params) 7422{ 7423 struct i802_bss *bss = priv; 7424 struct wpa_driver_nl80211_data *drv = bss->drv; 7425 struct nl_msg *msg; 7426 struct nl80211_sta_flag_update upd; 7427 int ret = -ENOBUFS; 7428 7429 if ((params->flags & WPA_STA_TDLS_PEER) && 7430 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 7431 return -EOPNOTSUPP; 7432 7433 msg = nlmsg_alloc(); 7434 if (!msg) 7435 return -ENOMEM; 7436 7437 wpa_printf(MSG_DEBUG, "nl80211: %s STA " MACSTR, 7438 params->set ? "Set" : "Add", MAC2STR(params->addr)); 7439 nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION : 7440 NL80211_CMD_NEW_STATION); 7441 7442 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 7443 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr); 7444 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len, 7445 params->supp_rates); 7446 wpa_hexdump(MSG_DEBUG, " * supported rates", params->supp_rates, 7447 params->supp_rates_len); 7448 if (!params->set) { 7449 if (params->aid) { 7450 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid); 7451 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid); 7452 } else { 7453 /* 7454 * cfg80211 validates that AID is non-zero, so we have 7455 * to make this a non-zero value for the TDLS case where 7456 * a dummy STA entry is used for now. 7457 */ 7458 wpa_printf(MSG_DEBUG, " * aid=1 (TDLS workaround)"); 7459 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, 1); 7460 } 7461 wpa_printf(MSG_DEBUG, " * listen_interval=%u", 7462 params->listen_interval); 7463 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, 7464 params->listen_interval); 7465 } else if (params->aid && (params->flags & WPA_STA_TDLS_PEER)) { 7466 wpa_printf(MSG_DEBUG, " * peer_aid=%u", params->aid); 7467 NLA_PUT_U16(msg, NL80211_ATTR_PEER_AID, params->aid); 7468 } 7469 if (params->ht_capabilities) { 7470 wpa_hexdump(MSG_DEBUG, " * ht_capabilities", 7471 (u8 *) params->ht_capabilities, 7472 sizeof(*params->ht_capabilities)); 7473 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, 7474 sizeof(*params->ht_capabilities), 7475 params->ht_capabilities); 7476 } 7477 7478 if (params->vht_capabilities) { 7479 wpa_hexdump(MSG_DEBUG, " * vht_capabilities", 7480 (u8 *) params->vht_capabilities, 7481 sizeof(*params->vht_capabilities)); 7482 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, 7483 sizeof(*params->vht_capabilities), 7484 params->vht_capabilities); 7485 } 7486 7487 if (params->vht_opmode_enabled) { 7488 wpa_printf(MSG_DEBUG, " * opmode=%u", params->vht_opmode); 7489 NLA_PUT_U8(msg, NL80211_ATTR_OPMODE_NOTIF, 7490 params->vht_opmode); 7491 } 7492 7493 wpa_printf(MSG_DEBUG, " * capability=0x%x", params->capability); 7494 NLA_PUT_U16(msg, NL80211_ATTR_STA_CAPABILITY, params->capability); 7495 7496 if (params->ext_capab) { 7497 wpa_hexdump(MSG_DEBUG, " * ext_capab", 7498 params->ext_capab, params->ext_capab_len); 7499 NLA_PUT(msg, NL80211_ATTR_STA_EXT_CAPABILITY, 7500 params->ext_capab_len, params->ext_capab); 7501 } 7502 7503 if (params->supp_channels) { 7504 wpa_hexdump(MSG_DEBUG, " * supported channels", 7505 params->supp_channels, params->supp_channels_len); 7506 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_CHANNELS, 7507 params->supp_channels_len, params->supp_channels); 7508 } 7509 7510 if (params->supp_oper_classes) { 7511 wpa_hexdump(MSG_DEBUG, " * supported operating classes", 7512 params->supp_oper_classes, 7513 params->supp_oper_classes_len); 7514 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES, 7515 params->supp_oper_classes_len, 7516 params->supp_oper_classes); 7517 } 7518 7519 os_memset(&upd, 0, sizeof(upd)); 7520 upd.mask = sta_flags_nl80211(params->flags); 7521 upd.set = upd.mask; 7522 wpa_printf(MSG_DEBUG, " * flags set=0x%x mask=0x%x", 7523 upd.set, upd.mask); 7524 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 7525 7526 if (params->flags & WPA_STA_WMM) { 7527 struct nlattr *wme = nla_nest_start(msg, NL80211_ATTR_STA_WME); 7528 7529 if (!wme) 7530 goto nla_put_failure; 7531 7532 wpa_printf(MSG_DEBUG, " * qosinfo=0x%x", params->qosinfo); 7533 NLA_PUT_U8(msg, NL80211_STA_WME_UAPSD_QUEUES, 7534 params->qosinfo & WMM_QOSINFO_STA_AC_MASK); 7535 NLA_PUT_U8(msg, NL80211_STA_WME_MAX_SP, 7536 (params->qosinfo >> WMM_QOSINFO_STA_SP_SHIFT) & 7537 WMM_QOSINFO_STA_SP_MASK); 7538 nla_nest_end(msg, wme); 7539 } 7540 7541 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7542 msg = NULL; 7543 if (ret) 7544 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION " 7545 "result: %d (%s)", params->set ? "SET" : "NEW", ret, 7546 strerror(-ret)); 7547 if (ret == -EEXIST) 7548 ret = 0; 7549 nla_put_failure: 7550 nlmsg_free(msg); 7551 return ret; 7552} 7553 7554 7555static int wpa_driver_nl80211_sta_remove(struct i802_bss *bss, const u8 *addr) 7556{ 7557 struct wpa_driver_nl80211_data *drv = bss->drv; 7558 struct nl_msg *msg; 7559 int ret; 7560 7561 msg = nlmsg_alloc(); 7562 if (!msg) 7563 return -ENOMEM; 7564 7565 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 7566 7567 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 7568 if_nametoindex(bss->ifname)); 7569 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 7570 7571 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7572 wpa_printf(MSG_DEBUG, "nl80211: sta_remove -> DEL_STATION %s " MACSTR 7573 " --> %d (%s)", 7574 bss->ifname, MAC2STR(addr), ret, strerror(-ret)); 7575 if (ret == -ENOENT) 7576 return 0; 7577 return ret; 7578 nla_put_failure: 7579 nlmsg_free(msg); 7580 return -ENOBUFS; 7581} 7582 7583 7584static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, 7585 int ifidx) 7586{ 7587 struct nl_msg *msg; 7588 7589 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx); 7590 7591 /* stop listening for EAPOL on this interface */ 7592 del_ifidx(drv, ifidx); 7593 7594 msg = nlmsg_alloc(); 7595 if (!msg) 7596 goto nla_put_failure; 7597 7598 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 7599 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx); 7600 7601 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 7602 return; 7603 msg = NULL; 7604 nla_put_failure: 7605 nlmsg_free(msg); 7606 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx); 7607} 7608 7609 7610static const char * nl80211_iftype_str(enum nl80211_iftype mode) 7611{ 7612 switch (mode) { 7613 case NL80211_IFTYPE_ADHOC: 7614 return "ADHOC"; 7615 case NL80211_IFTYPE_STATION: 7616 return "STATION"; 7617 case NL80211_IFTYPE_AP: 7618 return "AP"; 7619 case NL80211_IFTYPE_AP_VLAN: 7620 return "AP_VLAN"; 7621 case NL80211_IFTYPE_WDS: 7622 return "WDS"; 7623 case NL80211_IFTYPE_MONITOR: 7624 return "MONITOR"; 7625 case NL80211_IFTYPE_MESH_POINT: 7626 return "MESH_POINT"; 7627 case NL80211_IFTYPE_P2P_CLIENT: 7628 return "P2P_CLIENT"; 7629 case NL80211_IFTYPE_P2P_GO: 7630 return "P2P_GO"; 7631 case NL80211_IFTYPE_P2P_DEVICE: 7632 return "P2P_DEVICE"; 7633 default: 7634 return "unknown"; 7635 } 7636} 7637 7638 7639static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv, 7640 const char *ifname, 7641 enum nl80211_iftype iftype, 7642 const u8 *addr, int wds, 7643 int (*handler)(struct nl_msg *, void *), 7644 void *arg) 7645{ 7646 struct nl_msg *msg; 7647 int ifidx; 7648 int ret = -ENOBUFS; 7649 7650 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)", 7651 iftype, nl80211_iftype_str(iftype)); 7652 7653 msg = nlmsg_alloc(); 7654 if (!msg) 7655 return -1; 7656 7657 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE); 7658 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 7659 goto nla_put_failure; 7660 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname); 7661 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype); 7662 7663 if (iftype == NL80211_IFTYPE_MONITOR) { 7664 struct nlattr *flags; 7665 7666 flags = nla_nest_start(msg, NL80211_ATTR_MNTR_FLAGS); 7667 if (!flags) 7668 goto nla_put_failure; 7669 7670 NLA_PUT_FLAG(msg, NL80211_MNTR_FLAG_COOK_FRAMES); 7671 7672 nla_nest_end(msg, flags); 7673 } else if (wds) { 7674 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds); 7675 } 7676 7677 ret = send_and_recv_msgs(drv, msg, handler, arg); 7678 msg = NULL; 7679 if (ret) { 7680 nla_put_failure: 7681 nlmsg_free(msg); 7682 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)", 7683 ifname, ret, strerror(-ret)); 7684 return ret; 7685 } 7686 7687 if (iftype == NL80211_IFTYPE_P2P_DEVICE) 7688 return 0; 7689 7690 ifidx = if_nametoindex(ifname); 7691 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d", 7692 ifname, ifidx); 7693 7694 if (ifidx <= 0) 7695 return -1; 7696 7697 /* start listening for EAPOL on this interface */ 7698 add_ifidx(drv, ifidx); 7699 7700 if (addr && iftype != NL80211_IFTYPE_MONITOR && 7701 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) { 7702 nl80211_remove_iface(drv, ifidx); 7703 return -1; 7704 } 7705 7706 return ifidx; 7707} 7708 7709 7710static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv, 7711 const char *ifname, enum nl80211_iftype iftype, 7712 const u8 *addr, int wds, 7713 int (*handler)(struct nl_msg *, void *), 7714 void *arg, int use_existing) 7715{ 7716 int ret; 7717 7718 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds, handler, 7719 arg); 7720 7721 /* if error occurred and interface exists already */ 7722 if (ret == -ENFILE && if_nametoindex(ifname)) { 7723 if (use_existing) { 7724 wpa_printf(MSG_DEBUG, "nl80211: Continue using existing interface %s", 7725 ifname); 7726 if (addr && iftype != NL80211_IFTYPE_MONITOR && 7727 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 7728 addr) < 0 && 7729 (linux_set_iface_flags(drv->global->ioctl_sock, 7730 ifname, 0) < 0 || 7731 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 7732 addr) < 0 || 7733 linux_set_iface_flags(drv->global->ioctl_sock, 7734 ifname, 1) < 0)) 7735 return -1; 7736 return -ENFILE; 7737 } 7738 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname); 7739 7740 /* Try to remove the interface that was already there. */ 7741 nl80211_remove_iface(drv, if_nametoindex(ifname)); 7742 7743 /* Try to create the interface again */ 7744 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, 7745 wds, handler, arg); 7746 } 7747 7748 if (ret >= 0 && is_p2p_net_interface(iftype)) 7749 nl80211_disable_11b_rates(drv, ret, 1); 7750 7751 return ret; 7752} 7753 7754 7755static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok) 7756{ 7757 struct ieee80211_hdr *hdr; 7758 u16 fc; 7759 union wpa_event_data event; 7760 7761 hdr = (struct ieee80211_hdr *) buf; 7762 fc = le_to_host16(hdr->frame_control); 7763 7764 os_memset(&event, 0, sizeof(event)); 7765 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 7766 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 7767 event.tx_status.dst = hdr->addr1; 7768 event.tx_status.data = buf; 7769 event.tx_status.data_len = len; 7770 event.tx_status.ack = ok; 7771 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event); 7772} 7773 7774 7775static void from_unknown_sta(struct wpa_driver_nl80211_data *drv, 7776 u8 *buf, size_t len) 7777{ 7778 struct ieee80211_hdr *hdr = (void *)buf; 7779 u16 fc; 7780 union wpa_event_data event; 7781 7782 if (len < sizeof(*hdr)) 7783 return; 7784 7785 fc = le_to_host16(hdr->frame_control); 7786 7787 os_memset(&event, 0, sizeof(event)); 7788 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len); 7789 event.rx_from_unknown.addr = hdr->addr2; 7790 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) == 7791 (WLAN_FC_FROMDS | WLAN_FC_TODS); 7792 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 7793} 7794 7795 7796static void handle_frame(struct wpa_driver_nl80211_data *drv, 7797 u8 *buf, size_t len, int datarate, int ssi_signal) 7798{ 7799 struct ieee80211_hdr *hdr; 7800 u16 fc; 7801 union wpa_event_data event; 7802 7803 hdr = (struct ieee80211_hdr *) buf; 7804 fc = le_to_host16(hdr->frame_control); 7805 7806 switch (WLAN_FC_GET_TYPE(fc)) { 7807 case WLAN_FC_TYPE_MGMT: 7808 os_memset(&event, 0, sizeof(event)); 7809 event.rx_mgmt.frame = buf; 7810 event.rx_mgmt.frame_len = len; 7811 event.rx_mgmt.datarate = datarate; 7812 event.rx_mgmt.ssi_signal = ssi_signal; 7813 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 7814 break; 7815 case WLAN_FC_TYPE_CTRL: 7816 /* can only get here with PS-Poll frames */ 7817 wpa_printf(MSG_DEBUG, "CTRL"); 7818 from_unknown_sta(drv, buf, len); 7819 break; 7820 case WLAN_FC_TYPE_DATA: 7821 from_unknown_sta(drv, buf, len); 7822 break; 7823 } 7824} 7825 7826 7827static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx) 7828{ 7829 struct wpa_driver_nl80211_data *drv = eloop_ctx; 7830 int len; 7831 unsigned char buf[3000]; 7832 struct ieee80211_radiotap_iterator iter; 7833 int ret; 7834 int datarate = 0, ssi_signal = 0; 7835 int injected = 0, failed = 0, rxflags = 0; 7836 7837 len = recv(sock, buf, sizeof(buf), 0); 7838 if (len < 0) { 7839 wpa_printf(MSG_ERROR, "nl80211: Monitor socket recv failed: %s", 7840 strerror(errno)); 7841 return; 7842 } 7843 7844 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len, NULL)) { 7845 wpa_printf(MSG_INFO, "nl80211: received invalid radiotap frame"); 7846 return; 7847 } 7848 7849 while (1) { 7850 ret = ieee80211_radiotap_iterator_next(&iter); 7851 if (ret == -ENOENT) 7852 break; 7853 if (ret) { 7854 wpa_printf(MSG_INFO, "nl80211: received invalid radiotap frame (%d)", 7855 ret); 7856 return; 7857 } 7858 switch (iter.this_arg_index) { 7859 case IEEE80211_RADIOTAP_FLAGS: 7860 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS) 7861 len -= 4; 7862 break; 7863 case IEEE80211_RADIOTAP_RX_FLAGS: 7864 rxflags = 1; 7865 break; 7866 case IEEE80211_RADIOTAP_TX_FLAGS: 7867 injected = 1; 7868 failed = le_to_host16((*(uint16_t *) iter.this_arg)) & 7869 IEEE80211_RADIOTAP_F_TX_FAIL; 7870 break; 7871 case IEEE80211_RADIOTAP_DATA_RETRIES: 7872 break; 7873 case IEEE80211_RADIOTAP_CHANNEL: 7874 /* TODO: convert from freq/flags to channel number */ 7875 break; 7876 case IEEE80211_RADIOTAP_RATE: 7877 datarate = *iter.this_arg * 5; 7878 break; 7879 case IEEE80211_RADIOTAP_DBM_ANTSIGNAL: 7880 ssi_signal = (s8) *iter.this_arg; 7881 break; 7882 } 7883 } 7884 7885 if (rxflags && injected) 7886 return; 7887 7888 if (!injected) 7889 handle_frame(drv, buf + iter._max_length, 7890 len - iter._max_length, datarate, ssi_signal); 7891 else 7892 handle_tx_callback(drv->ctx, buf + iter._max_length, 7893 len - iter._max_length, !failed); 7894} 7895 7896 7897/* 7898 * we post-process the filter code later and rewrite 7899 * this to the offset to the last instruction 7900 */ 7901#define PASS 0xFF 7902#define FAIL 0xFE 7903 7904static struct sock_filter msock_filter_insns[] = { 7905 /* 7906 * do a little-endian load of the radiotap length field 7907 */ 7908 /* load lower byte into A */ 7909 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2), 7910 /* put it into X (== index register) */ 7911 BPF_STMT(BPF_MISC| BPF_TAX, 0), 7912 /* load upper byte into A */ 7913 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3), 7914 /* left-shift it by 8 */ 7915 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8), 7916 /* or with X */ 7917 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0), 7918 /* put result into X */ 7919 BPF_STMT(BPF_MISC| BPF_TAX, 0), 7920 7921 /* 7922 * Allow management frames through, this also gives us those 7923 * management frames that we sent ourselves with status 7924 */ 7925 /* load the lower byte of the IEEE 802.11 frame control field */ 7926 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7927 /* mask off frame type and version */ 7928 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF), 7929 /* accept frame if it's both 0, fall through otherwise */ 7930 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0), 7931 7932 /* 7933 * TODO: add a bit to radiotap RX flags that indicates 7934 * that the sending station is not associated, then 7935 * add a filter here that filters on our DA and that flag 7936 * to allow us to deauth frames to that bad station. 7937 * 7938 * For now allow all To DS data frames through. 7939 */ 7940 /* load the IEEE 802.11 frame control field */ 7941 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0), 7942 /* mask off frame type, version and DS status */ 7943 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03), 7944 /* accept frame if version 0, type 2 and To DS, fall through otherwise 7945 */ 7946 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0), 7947 7948#if 0 7949 /* 7950 * drop non-data frames 7951 */ 7952 /* load the lower byte of the frame control field */ 7953 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7954 /* mask off QoS bit */ 7955 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c), 7956 /* drop non-data frames */ 7957 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL), 7958#endif 7959 /* load the upper byte of the frame control field */ 7960 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1), 7961 /* mask off toDS/fromDS */ 7962 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03), 7963 /* accept WDS frames */ 7964 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0), 7965 7966 /* 7967 * add header length to index 7968 */ 7969 /* load the lower byte of the frame control field */ 7970 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7971 /* mask off QoS bit */ 7972 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80), 7973 /* right shift it by 6 to give 0 or 2 */ 7974 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6), 7975 /* add data frame header length */ 7976 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24), 7977 /* add index, was start of 802.11 header */ 7978 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), 7979 /* move to index, now start of LL header */ 7980 BPF_STMT(BPF_MISC | BPF_TAX, 0), 7981 7982 /* 7983 * Accept empty data frames, we use those for 7984 * polling activity. 7985 */ 7986 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0), 7987 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0), 7988 7989 /* 7990 * Accept EAPOL frames 7991 */ 7992 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0), 7993 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL), 7994 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4), 7995 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL), 7996 7997 /* keep these last two statements or change the code below */ 7998 /* return 0 == "DROP" */ 7999 BPF_STMT(BPF_RET | BPF_K, 0), 8000 /* return ~0 == "keep all" */ 8001 BPF_STMT(BPF_RET | BPF_K, ~0), 8002}; 8003 8004static struct sock_fprog msock_filter = { 8005 .len = ARRAY_SIZE(msock_filter_insns), 8006 .filter = msock_filter_insns, 8007}; 8008 8009 8010static int add_monitor_filter(int s) 8011{ 8012 int idx; 8013 8014 /* rewrite all PASS/FAIL jump offsets */ 8015 for (idx = 0; idx < msock_filter.len; idx++) { 8016 struct sock_filter *insn = &msock_filter_insns[idx]; 8017 8018 if (BPF_CLASS(insn->code) == BPF_JMP) { 8019 if (insn->code == (BPF_JMP|BPF_JA)) { 8020 if (insn->k == PASS) 8021 insn->k = msock_filter.len - idx - 2; 8022 else if (insn->k == FAIL) 8023 insn->k = msock_filter.len - idx - 3; 8024 } 8025 8026 if (insn->jt == PASS) 8027 insn->jt = msock_filter.len - idx - 2; 8028 else if (insn->jt == FAIL) 8029 insn->jt = msock_filter.len - idx - 3; 8030 8031 if (insn->jf == PASS) 8032 insn->jf = msock_filter.len - idx - 2; 8033 else if (insn->jf == FAIL) 8034 insn->jf = msock_filter.len - idx - 3; 8035 } 8036 } 8037 8038 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER, 8039 &msock_filter, sizeof(msock_filter))) { 8040 wpa_printf(MSG_ERROR, "nl80211: setsockopt(SO_ATTACH_FILTER) failed: %s", 8041 strerror(errno)); 8042 return -1; 8043 } 8044 8045 return 0; 8046} 8047 8048 8049static void nl80211_remove_monitor_interface( 8050 struct wpa_driver_nl80211_data *drv) 8051{ 8052 if (drv->monitor_refcount > 0) 8053 drv->monitor_refcount--; 8054 wpa_printf(MSG_DEBUG, "nl80211: Remove monitor interface: refcount=%d", 8055 drv->monitor_refcount); 8056 if (drv->monitor_refcount > 0) 8057 return; 8058 8059 if (drv->monitor_ifidx >= 0) { 8060 nl80211_remove_iface(drv, drv->monitor_ifidx); 8061 drv->monitor_ifidx = -1; 8062 } 8063 if (drv->monitor_sock >= 0) { 8064 eloop_unregister_read_sock(drv->monitor_sock); 8065 close(drv->monitor_sock); 8066 drv->monitor_sock = -1; 8067 } 8068} 8069 8070 8071static int 8072nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv) 8073{ 8074 char buf[IFNAMSIZ]; 8075 struct sockaddr_ll ll; 8076 int optval; 8077 socklen_t optlen; 8078 8079 if (drv->monitor_ifidx >= 0) { 8080 drv->monitor_refcount++; 8081 wpa_printf(MSG_DEBUG, "nl80211: Re-use existing monitor interface: refcount=%d", 8082 drv->monitor_refcount); 8083 return 0; 8084 } 8085 8086 if (os_strncmp(drv->first_bss->ifname, "p2p-", 4) == 0) { 8087 /* 8088 * P2P interface name is of the format p2p-%s-%d. For monitor 8089 * interface name corresponding to P2P GO, replace "p2p-" with 8090 * "mon-" to retain the same interface name length and to 8091 * indicate that it is a monitor interface. 8092 */ 8093 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss->ifname + 4); 8094 } else { 8095 /* Non-P2P interface with AP functionality. */ 8096 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss->ifname); 8097 } 8098 8099 buf[IFNAMSIZ - 1] = '\0'; 8100 8101 drv->monitor_ifidx = 8102 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL, 8103 0, NULL, NULL, 0); 8104 8105 if (drv->monitor_ifidx == -EOPNOTSUPP) { 8106 /* 8107 * This is backward compatibility for a few versions of 8108 * the kernel only that didn't advertise the right 8109 * attributes for the only driver that then supported 8110 * AP mode w/o monitor -- ath6kl. 8111 */ 8112 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support " 8113 "monitor interface type - try to run without it"); 8114 drv->device_ap_sme = 1; 8115 } 8116 8117 if (drv->monitor_ifidx < 0) 8118 return -1; 8119 8120 if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1)) 8121 goto error; 8122 8123 memset(&ll, 0, sizeof(ll)); 8124 ll.sll_family = AF_PACKET; 8125 ll.sll_ifindex = drv->monitor_ifidx; 8126 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)); 8127 if (drv->monitor_sock < 0) { 8128 wpa_printf(MSG_ERROR, "nl80211: socket[PF_PACKET,SOCK_RAW] failed: %s", 8129 strerror(errno)); 8130 goto error; 8131 } 8132 8133 if (add_monitor_filter(drv->monitor_sock)) { 8134 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor " 8135 "interface; do filtering in user space"); 8136 /* This works, but will cost in performance. */ 8137 } 8138 8139 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) { 8140 wpa_printf(MSG_ERROR, "nl80211: monitor socket bind failed: %s", 8141 strerror(errno)); 8142 goto error; 8143 } 8144 8145 optlen = sizeof(optval); 8146 optval = 20; 8147 if (setsockopt 8148 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) { 8149 wpa_printf(MSG_ERROR, "nl80211: Failed to set socket priority: %s", 8150 strerror(errno)); 8151 goto error; 8152 } 8153 8154 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read, 8155 drv, NULL)) { 8156 wpa_printf(MSG_INFO, "nl80211: Could not register monitor read socket"); 8157 goto error; 8158 } 8159 8160 drv->monitor_refcount++; 8161 return 0; 8162 error: 8163 nl80211_remove_monitor_interface(drv); 8164 return -1; 8165} 8166 8167 8168static int nl80211_setup_ap(struct i802_bss *bss) 8169{ 8170 struct wpa_driver_nl80211_data *drv = bss->drv; 8171 8172 wpa_printf(MSG_DEBUG, "nl80211: Setup AP(%s) - device_ap_sme=%d use_monitor=%d", 8173 bss->ifname, drv->device_ap_sme, drv->use_monitor); 8174 8175 /* 8176 * Disable Probe Request reporting unless we need it in this way for 8177 * devices that include the AP SME, in the other case (unless using 8178 * monitor iface) we'll get it through the nl_mgmt socket instead. 8179 */ 8180 if (!drv->device_ap_sme) 8181 wpa_driver_nl80211_probe_req_report(bss, 0); 8182 8183 if (!drv->device_ap_sme && !drv->use_monitor) 8184 if (nl80211_mgmt_subscribe_ap(bss)) 8185 return -1; 8186 8187 if (drv->device_ap_sme && !drv->use_monitor) 8188 if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) 8189 return -1; 8190 8191 if (!drv->device_ap_sme && drv->use_monitor && 8192 nl80211_create_monitor_interface(drv) && 8193 !drv->device_ap_sme) 8194 return -1; 8195 8196 if (drv->device_ap_sme && 8197 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) { 8198 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable " 8199 "Probe Request frame reporting in AP mode"); 8200 /* Try to survive without this */ 8201 } 8202 8203 return 0; 8204} 8205 8206 8207static void nl80211_teardown_ap(struct i802_bss *bss) 8208{ 8209 struct wpa_driver_nl80211_data *drv = bss->drv; 8210 8211 wpa_printf(MSG_DEBUG, "nl80211: Teardown AP(%s) - device_ap_sme=%d use_monitor=%d", 8212 bss->ifname, drv->device_ap_sme, drv->use_monitor); 8213 if (drv->device_ap_sme) { 8214 wpa_driver_nl80211_probe_req_report(bss, 0); 8215 if (!drv->use_monitor) 8216 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)"); 8217 } else if (drv->use_monitor) 8218 nl80211_remove_monitor_interface(drv); 8219 else 8220 nl80211_mgmt_unsubscribe(bss, "AP teardown"); 8221 8222 bss->beacon_set = 0; 8223} 8224 8225 8226static int nl80211_send_eapol_data(struct i802_bss *bss, 8227 const u8 *addr, const u8 *data, 8228 size_t data_len) 8229{ 8230 struct sockaddr_ll ll; 8231 int ret; 8232 8233 if (bss->drv->eapol_tx_sock < 0) { 8234 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL"); 8235 return -1; 8236 } 8237 8238 os_memset(&ll, 0, sizeof(ll)); 8239 ll.sll_family = AF_PACKET; 8240 ll.sll_ifindex = bss->ifindex; 8241 ll.sll_protocol = htons(ETH_P_PAE); 8242 ll.sll_halen = ETH_ALEN; 8243 os_memcpy(ll.sll_addr, addr, ETH_ALEN); 8244 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0, 8245 (struct sockaddr *) &ll, sizeof(ll)); 8246 if (ret < 0) 8247 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s", 8248 strerror(errno)); 8249 8250 return ret; 8251} 8252 8253 8254static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 8255 8256static int wpa_driver_nl80211_hapd_send_eapol( 8257 void *priv, const u8 *addr, const u8 *data, 8258 size_t data_len, int encrypt, const u8 *own_addr, u32 flags) 8259{ 8260 struct i802_bss *bss = priv; 8261 struct wpa_driver_nl80211_data *drv = bss->drv; 8262 struct ieee80211_hdr *hdr; 8263 size_t len; 8264 u8 *pos; 8265 int res; 8266 int qos = flags & WPA_STA_WMM; 8267 8268 if (drv->device_ap_sme || !drv->use_monitor) 8269 return nl80211_send_eapol_data(bss, addr, data, data_len); 8270 8271 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 + 8272 data_len; 8273 hdr = os_zalloc(len); 8274 if (hdr == NULL) { 8275 wpa_printf(MSG_INFO, "nl80211: Failed to allocate EAPOL buffer(len=%lu)", 8276 (unsigned long) len); 8277 return -1; 8278 } 8279 8280 hdr->frame_control = 8281 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA); 8282 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS); 8283 if (encrypt) 8284 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP); 8285 if (qos) { 8286 hdr->frame_control |= 8287 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4); 8288 } 8289 8290 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN); 8291 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 8292 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 8293 pos = (u8 *) (hdr + 1); 8294 8295 if (qos) { 8296 /* Set highest priority in QoS header */ 8297 pos[0] = 7; 8298 pos[1] = 0; 8299 pos += 2; 8300 } 8301 8302 memcpy(pos, rfc1042_header, sizeof(rfc1042_header)); 8303 pos += sizeof(rfc1042_header); 8304 WPA_PUT_BE16(pos, ETH_P_PAE); 8305 pos += 2; 8306 memcpy(pos, data, data_len); 8307 8308 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0, 8309 0, 0, 0, 0); 8310 if (res < 0) { 8311 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - " 8312 "failed: %d (%s)", 8313 (unsigned long) len, errno, strerror(errno)); 8314 } 8315 os_free(hdr); 8316 8317 return res; 8318} 8319 8320 8321static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr, 8322 int total_flags, 8323 int flags_or, int flags_and) 8324{ 8325 struct i802_bss *bss = priv; 8326 struct wpa_driver_nl80211_data *drv = bss->drv; 8327 struct nl_msg *msg; 8328 struct nlattr *flags; 8329 struct nl80211_sta_flag_update upd; 8330 8331 msg = nlmsg_alloc(); 8332 if (!msg) 8333 return -ENOMEM; 8334 8335 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8336 8337 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8338 if_nametoindex(bss->ifname)); 8339 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8340 8341 /* 8342 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This 8343 * can be removed eventually. 8344 */ 8345 flags = nla_nest_start(msg, NL80211_ATTR_STA_FLAGS); 8346 if (!flags) 8347 goto nla_put_failure; 8348 if (total_flags & WPA_STA_AUTHORIZED) 8349 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_AUTHORIZED); 8350 8351 if (total_flags & WPA_STA_WMM) 8352 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_WME); 8353 8354 if (total_flags & WPA_STA_SHORT_PREAMBLE) 8355 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_SHORT_PREAMBLE); 8356 8357 if (total_flags & WPA_STA_MFP) 8358 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_MFP); 8359 8360 if (total_flags & WPA_STA_TDLS_PEER) 8361 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_TDLS_PEER); 8362 8363 nla_nest_end(msg, flags); 8364 8365 os_memset(&upd, 0, sizeof(upd)); 8366 upd.mask = sta_flags_nl80211(flags_or | ~flags_and); 8367 upd.set = sta_flags_nl80211(flags_or); 8368 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 8369 8370 return send_and_recv_msgs(drv, msg, NULL, NULL); 8371 nla_put_failure: 8372 nlmsg_free(msg); 8373 return -ENOBUFS; 8374} 8375 8376 8377static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv, 8378 struct wpa_driver_associate_params *params) 8379{ 8380 enum nl80211_iftype nlmode, old_mode; 8381 struct hostapd_freq_params freq = { 8382 .freq = params->freq, 8383 }; 8384 8385 if (params->p2p) { 8386 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P " 8387 "group (GO)"); 8388 nlmode = NL80211_IFTYPE_P2P_GO; 8389 } else 8390 nlmode = NL80211_IFTYPE_AP; 8391 8392 old_mode = drv->nlmode; 8393 if (wpa_driver_nl80211_set_mode(drv->first_bss, nlmode)) { 8394 nl80211_remove_monitor_interface(drv); 8395 return -1; 8396 } 8397 8398 if (wpa_driver_nl80211_set_freq(drv->first_bss, &freq)) { 8399 if (old_mode != nlmode) 8400 wpa_driver_nl80211_set_mode(drv->first_bss, old_mode); 8401 nl80211_remove_monitor_interface(drv); 8402 return -1; 8403 } 8404 8405 return 0; 8406} 8407 8408 8409static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv) 8410{ 8411 struct nl_msg *msg; 8412 int ret = -1; 8413 8414 msg = nlmsg_alloc(); 8415 if (!msg) 8416 return -1; 8417 8418 nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS); 8419 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8420 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8421 msg = NULL; 8422 if (ret) { 8423 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d " 8424 "(%s)", ret, strerror(-ret)); 8425 goto nla_put_failure; 8426 } 8427 8428 ret = 0; 8429 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully"); 8430 8431nla_put_failure: 8432 if (wpa_driver_nl80211_set_mode(drv->first_bss, 8433 NL80211_IFTYPE_STATION)) { 8434 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 8435 "station mode"); 8436 } 8437 8438 nlmsg_free(msg); 8439 return ret; 8440} 8441 8442 8443static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv, 8444 struct wpa_driver_associate_params *params) 8445{ 8446 struct nl_msg *msg; 8447 int ret = -1; 8448 int count = 0; 8449 8450 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex); 8451 8452 if (wpa_driver_nl80211_set_mode(drv->first_bss, 8453 NL80211_IFTYPE_ADHOC)) { 8454 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 8455 "IBSS mode"); 8456 return -1; 8457 } 8458 8459retry: 8460 msg = nlmsg_alloc(); 8461 if (!msg) 8462 return -1; 8463 8464 nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS); 8465 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8466 8467 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid)) 8468 goto nla_put_failure; 8469 8470 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 8471 params->ssid, params->ssid_len); 8472 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 8473 params->ssid); 8474 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 8475 drv->ssid_len = params->ssid_len; 8476 8477 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 8478 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 8479 8480 if (params->beacon_int > 0) { 8481 wpa_printf(MSG_DEBUG, " * beacon_int=%d", params->beacon_int); 8482 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, 8483 params->beacon_int); 8484 } 8485 8486 ret = nl80211_set_conn_keys(params, msg); 8487 if (ret) 8488 goto nla_put_failure; 8489 8490 if (params->bssid && params->fixed_bssid) { 8491 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR, 8492 MAC2STR(params->bssid)); 8493 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 8494 } 8495 8496 if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X || 8497 params->key_mgmt_suite == WPA_KEY_MGMT_PSK || 8498 params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 || 8499 params->key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256) { 8500 wpa_printf(MSG_DEBUG, " * control port"); 8501 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 8502 } 8503 8504 if (params->wpa_ie) { 8505 wpa_hexdump(MSG_DEBUG, 8506 " * Extra IEs for Beacon/Probe Response frames", 8507 params->wpa_ie, params->wpa_ie_len); 8508 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 8509 params->wpa_ie); 8510 } 8511 8512 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8513 msg = NULL; 8514 if (ret) { 8515 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)", 8516 ret, strerror(-ret)); 8517 count++; 8518 if (ret == -EALREADY && count == 1) { 8519 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after " 8520 "forced leave"); 8521 nl80211_leave_ibss(drv); 8522 nlmsg_free(msg); 8523 goto retry; 8524 } 8525 8526 goto nla_put_failure; 8527 } 8528 ret = 0; 8529 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully"); 8530 8531nla_put_failure: 8532 nlmsg_free(msg); 8533 return ret; 8534} 8535 8536 8537static int nl80211_connect_common(struct wpa_driver_nl80211_data *drv, 8538 struct wpa_driver_associate_params *params, 8539 struct nl_msg *msg) 8540{ 8541 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8542 8543 if (params->bssid) { 8544 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 8545 MAC2STR(params->bssid)); 8546 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 8547 } 8548 8549 if (params->bssid_hint) { 8550 wpa_printf(MSG_DEBUG, " * bssid_hint=" MACSTR, 8551 MAC2STR(params->bssid_hint)); 8552 NLA_PUT(msg, NL80211_ATTR_MAC_HINT, ETH_ALEN, 8553 params->bssid_hint); 8554 } 8555 8556 if (params->freq) { 8557 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 8558 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 8559 drv->assoc_freq = params->freq; 8560 } else 8561 drv->assoc_freq = 0; 8562 8563 if (params->freq_hint) { 8564 wpa_printf(MSG_DEBUG, " * freq_hint=%d", params->freq_hint); 8565 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ_HINT, 8566 params->freq_hint); 8567 } 8568 8569 if (params->bg_scan_period >= 0) { 8570 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 8571 params->bg_scan_period); 8572 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 8573 params->bg_scan_period); 8574 } 8575 8576 if (params->ssid) { 8577 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 8578 params->ssid, params->ssid_len); 8579 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 8580 params->ssid); 8581 if (params->ssid_len > sizeof(drv->ssid)) 8582 goto nla_put_failure; 8583 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 8584 drv->ssid_len = params->ssid_len; 8585 } 8586 8587 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 8588 if (params->wpa_ie) 8589 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 8590 params->wpa_ie); 8591 8592 if (params->wpa_proto) { 8593 enum nl80211_wpa_versions ver = 0; 8594 8595 if (params->wpa_proto & WPA_PROTO_WPA) 8596 ver |= NL80211_WPA_VERSION_1; 8597 if (params->wpa_proto & WPA_PROTO_RSN) 8598 ver |= NL80211_WPA_VERSION_2; 8599 8600 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver); 8601 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 8602 } 8603 8604 if (params->pairwise_suite != WPA_CIPHER_NONE) { 8605 u32 cipher = wpa_cipher_to_cipher_suite(params->pairwise_suite); 8606 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher); 8607 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); 8608 } 8609 8610 if (params->group_suite == WPA_CIPHER_GTK_NOT_USED && 8611 !(drv->capa.enc & WPA_DRIVER_CAPA_ENC_GTK_NOT_USED)) { 8612 /* 8613 * This is likely to work even though many drivers do not 8614 * advertise support for operations without GTK. 8615 */ 8616 wpa_printf(MSG_DEBUG, " * skip group cipher configuration for GTK_NOT_USED due to missing driver support advertisement"); 8617 } else if (params->group_suite != WPA_CIPHER_NONE) { 8618 u32 cipher = wpa_cipher_to_cipher_suite(params->group_suite); 8619 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher); 8620 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); 8621 } 8622 8623 if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X || 8624 params->key_mgmt_suite == WPA_KEY_MGMT_PSK || 8625 params->key_mgmt_suite == WPA_KEY_MGMT_FT_IEEE8021X || 8626 params->key_mgmt_suite == WPA_KEY_MGMT_FT_PSK || 8627 params->key_mgmt_suite == WPA_KEY_MGMT_CCKM || 8628 params->key_mgmt_suite == WPA_KEY_MGMT_OSEN) { 8629 int mgmt = WLAN_AKM_SUITE_PSK; 8630 8631 switch (params->key_mgmt_suite) { 8632 case WPA_KEY_MGMT_CCKM: 8633 mgmt = WLAN_AKM_SUITE_CCKM; 8634 break; 8635 case WPA_KEY_MGMT_IEEE8021X: 8636 mgmt = WLAN_AKM_SUITE_8021X; 8637 break; 8638 case WPA_KEY_MGMT_FT_IEEE8021X: 8639 mgmt = WLAN_AKM_SUITE_FT_8021X; 8640 break; 8641 case WPA_KEY_MGMT_FT_PSK: 8642 mgmt = WLAN_AKM_SUITE_FT_PSK; 8643 break; 8644 case WPA_KEY_MGMT_OSEN: 8645 mgmt = WLAN_AKM_SUITE_OSEN; 8646 break; 8647 case WPA_KEY_MGMT_PSK: 8648 default: 8649 mgmt = WLAN_AKM_SUITE_PSK; 8650 break; 8651 } 8652 wpa_printf(MSG_DEBUG, " * akm=0x%x", mgmt); 8653 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt); 8654 } 8655 8656 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 8657 8658 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) 8659 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); 8660 8661 if (params->disable_ht) 8662 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); 8663 8664 if (params->htcaps && params->htcaps_mask) { 8665 int sz = sizeof(struct ieee80211_ht_capabilities); 8666 wpa_hexdump(MSG_DEBUG, " * htcaps", params->htcaps, sz); 8667 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); 8668 wpa_hexdump(MSG_DEBUG, " * htcaps_mask", 8669 params->htcaps_mask, sz); 8670 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 8671 params->htcaps_mask); 8672 } 8673 8674#ifdef CONFIG_VHT_OVERRIDES 8675 if (params->disable_vht) { 8676 wpa_printf(MSG_DEBUG, " * VHT disabled"); 8677 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT); 8678 } 8679 8680 if (params->vhtcaps && params->vhtcaps_mask) { 8681 int sz = sizeof(struct ieee80211_vht_capabilities); 8682 wpa_hexdump(MSG_DEBUG, " * vhtcaps", params->vhtcaps, sz); 8683 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps); 8684 wpa_hexdump(MSG_DEBUG, " * vhtcaps_mask", 8685 params->vhtcaps_mask, sz); 8686 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 8687 params->vhtcaps_mask); 8688 } 8689#endif /* CONFIG_VHT_OVERRIDES */ 8690 8691 if (params->p2p) 8692 wpa_printf(MSG_DEBUG, " * P2P group"); 8693 8694 return 0; 8695nla_put_failure: 8696 return -1; 8697} 8698 8699 8700static int wpa_driver_nl80211_try_connect( 8701 struct wpa_driver_nl80211_data *drv, 8702 struct wpa_driver_associate_params *params) 8703{ 8704 struct nl_msg *msg; 8705 enum nl80211_auth_type type; 8706 int ret; 8707 int algs; 8708 8709 msg = nlmsg_alloc(); 8710 if (!msg) 8711 return -1; 8712 8713 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex); 8714 nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT); 8715 8716 ret = nl80211_connect_common(drv, params, msg); 8717 if (ret) 8718 goto nla_put_failure; 8719 8720 algs = 0; 8721 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 8722 algs++; 8723 if (params->auth_alg & WPA_AUTH_ALG_SHARED) 8724 algs++; 8725 if (params->auth_alg & WPA_AUTH_ALG_LEAP) 8726 algs++; 8727 if (algs > 1) { 8728 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic " 8729 "selection"); 8730 goto skip_auth_type; 8731 } 8732 8733 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 8734 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 8735 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 8736 type = NL80211_AUTHTYPE_SHARED_KEY; 8737 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 8738 type = NL80211_AUTHTYPE_NETWORK_EAP; 8739 else if (params->auth_alg & WPA_AUTH_ALG_FT) 8740 type = NL80211_AUTHTYPE_FT; 8741 else 8742 goto nla_put_failure; 8743 8744 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 8745 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 8746 8747skip_auth_type: 8748 ret = nl80211_set_conn_keys(params, msg); 8749 if (ret) 8750 goto nla_put_failure; 8751 8752 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8753 msg = NULL; 8754 if (ret) { 8755 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d " 8756 "(%s)", ret, strerror(-ret)); 8757 goto nla_put_failure; 8758 } 8759 ret = 0; 8760 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully"); 8761 8762nla_put_failure: 8763 nlmsg_free(msg); 8764 return ret; 8765 8766} 8767 8768 8769static int wpa_driver_nl80211_connect( 8770 struct wpa_driver_nl80211_data *drv, 8771 struct wpa_driver_associate_params *params) 8772{ 8773 int ret = wpa_driver_nl80211_try_connect(drv, params); 8774 if (ret == -EALREADY) { 8775 /* 8776 * cfg80211 does not currently accept new connections if 8777 * we are already connected. As a workaround, force 8778 * disconnection and try again. 8779 */ 8780 wpa_printf(MSG_DEBUG, "nl80211: Explicitly " 8781 "disconnecting before reassociation " 8782 "attempt"); 8783 if (wpa_driver_nl80211_disconnect( 8784 drv, WLAN_REASON_PREV_AUTH_NOT_VALID)) 8785 return -1; 8786 ret = wpa_driver_nl80211_try_connect(drv, params); 8787 } 8788 return ret; 8789} 8790 8791 8792static int wpa_driver_nl80211_associate( 8793 void *priv, struct wpa_driver_associate_params *params) 8794{ 8795 struct i802_bss *bss = priv; 8796 struct wpa_driver_nl80211_data *drv = bss->drv; 8797 int ret; 8798 struct nl_msg *msg; 8799 8800 if (params->mode == IEEE80211_MODE_AP) 8801 return wpa_driver_nl80211_ap(drv, params); 8802 8803 if (params->mode == IEEE80211_MODE_IBSS) 8804 return wpa_driver_nl80211_ibss(drv, params); 8805 8806 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) { 8807 enum nl80211_iftype nlmode = params->p2p ? 8808 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 8809 8810 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0) 8811 return -1; 8812 return wpa_driver_nl80211_connect(drv, params); 8813 } 8814 8815 nl80211_mark_disconnected(drv); 8816 8817 msg = nlmsg_alloc(); 8818 if (!msg) 8819 return -1; 8820 8821 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)", 8822 drv->ifindex); 8823 nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE); 8824 8825 ret = nl80211_connect_common(drv, params, msg); 8826 if (ret) 8827 goto nla_put_failure; 8828 8829 if (params->prev_bssid) { 8830 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR, 8831 MAC2STR(params->prev_bssid)); 8832 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN, 8833 params->prev_bssid); 8834 } 8835 8836 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8837 msg = NULL; 8838 if (ret) { 8839 wpa_dbg(drv->ctx, MSG_DEBUG, 8840 "nl80211: MLME command failed (assoc): ret=%d (%s)", 8841 ret, strerror(-ret)); 8842 nl80211_dump_scan(drv); 8843 goto nla_put_failure; 8844 } 8845 ret = 0; 8846 wpa_printf(MSG_DEBUG, "nl80211: Association request send " 8847 "successfully"); 8848 8849nla_put_failure: 8850 nlmsg_free(msg); 8851 return ret; 8852} 8853 8854 8855static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv, 8856 int ifindex, enum nl80211_iftype mode) 8857{ 8858 struct nl_msg *msg; 8859 int ret = -ENOBUFS; 8860 8861 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)", 8862 ifindex, mode, nl80211_iftype_str(mode)); 8863 8864 msg = nlmsg_alloc(); 8865 if (!msg) 8866 return -ENOMEM; 8867 8868 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE); 8869 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 8870 goto nla_put_failure; 8871 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode); 8872 8873 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8874 msg = NULL; 8875 if (!ret) 8876 return 0; 8877nla_put_failure: 8878 nlmsg_free(msg); 8879 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:" 8880 " %d (%s)", ifindex, mode, ret, strerror(-ret)); 8881 return ret; 8882} 8883 8884 8885static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 8886 enum nl80211_iftype nlmode) 8887{ 8888 struct wpa_driver_nl80211_data *drv = bss->drv; 8889 int ret = -1; 8890 int i; 8891 int was_ap = is_ap_interface(drv->nlmode); 8892 int res; 8893 8894 res = nl80211_set_mode(drv, drv->ifindex, nlmode); 8895 if (res && nlmode == nl80211_get_ifmode(bss)) 8896 res = 0; 8897 8898 if (res == 0) { 8899 drv->nlmode = nlmode; 8900 ret = 0; 8901 goto done; 8902 } 8903 8904 if (res == -ENODEV) 8905 return -1; 8906 8907 if (nlmode == drv->nlmode) { 8908 wpa_printf(MSG_DEBUG, "nl80211: Interface already in " 8909 "requested mode - ignore error"); 8910 ret = 0; 8911 goto done; /* Already in the requested mode */ 8912 } 8913 8914 /* mac80211 doesn't allow mode changes while the device is up, so 8915 * take the device down, try to set the mode again, and bring the 8916 * device back up. 8917 */ 8918 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting " 8919 "interface down"); 8920 for (i = 0; i < 10; i++) { 8921 res = i802_set_iface_flags(bss, 0); 8922 if (res == -EACCES || res == -ENODEV) 8923 break; 8924 if (res == 0) { 8925 /* Try to set the mode again while the interface is 8926 * down */ 8927 ret = nl80211_set_mode(drv, drv->ifindex, nlmode); 8928 if (ret == -EACCES) 8929 break; 8930 res = i802_set_iface_flags(bss, 1); 8931 if (res && !ret) 8932 ret = -1; 8933 else if (ret != -EBUSY) 8934 break; 8935 } else 8936 wpa_printf(MSG_DEBUG, "nl80211: Failed to set " 8937 "interface down"); 8938 os_sleep(0, 100000); 8939 } 8940 8941 if (!ret) { 8942 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while " 8943 "interface is down"); 8944 drv->nlmode = nlmode; 8945 drv->ignore_if_down_event = 1; 8946 } 8947 8948done: 8949 if (ret) { 8950 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d " 8951 "from %d failed", nlmode, drv->nlmode); 8952 return ret; 8953 } 8954 8955 if (is_p2p_net_interface(nlmode)) 8956 nl80211_disable_11b_rates(drv, drv->ifindex, 1); 8957 else if (drv->disabled_11b_rates) 8958 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 8959 8960 if (is_ap_interface(nlmode)) { 8961 nl80211_mgmt_unsubscribe(bss, "start AP"); 8962 /* Setup additional AP mode functionality if needed */ 8963 if (nl80211_setup_ap(bss)) 8964 return -1; 8965 } else if (was_ap) { 8966 /* Remove additional AP mode functionality */ 8967 nl80211_teardown_ap(bss); 8968 } else { 8969 nl80211_mgmt_unsubscribe(bss, "mode change"); 8970 } 8971 8972 if (!bss->in_deinit && !is_ap_interface(nlmode) && 8973 nl80211_mgmt_subscribe_non_ap(bss) < 0) 8974 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action " 8975 "frame processing - ignore for now"); 8976 8977 return 0; 8978} 8979 8980 8981static int dfs_info_handler(struct nl_msg *msg, void *arg) 8982{ 8983 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 8984 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 8985 int *dfs_capability_ptr = arg; 8986 8987 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 8988 genlmsg_attrlen(gnlh, 0), NULL); 8989 8990 if (tb[NL80211_ATTR_VENDOR_DATA]) { 8991 struct nlattr *nl_vend = tb[NL80211_ATTR_VENDOR_DATA]; 8992 struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_MAX + 1]; 8993 8994 nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_MAX, 8995 nla_data(nl_vend), nla_len(nl_vend), NULL); 8996 8997 if (tb_vendor[QCA_WLAN_VENDOR_ATTR_DFS]) { 8998 u32 val; 8999 val = nla_get_u32(tb_vendor[QCA_WLAN_VENDOR_ATTR_DFS]); 9000 wpa_printf(MSG_DEBUG, "nl80211: DFS offload capability: %u", 9001 val); 9002 *dfs_capability_ptr = val; 9003 } 9004 } 9005 9006 return NL_SKIP; 9007} 9008 9009 9010static int wpa_driver_nl80211_get_capa(void *priv, 9011 struct wpa_driver_capa *capa) 9012{ 9013 struct i802_bss *bss = priv; 9014 struct wpa_driver_nl80211_data *drv = bss->drv; 9015 struct nl_msg *msg; 9016 int dfs_capability = 0; 9017 int ret = 0; 9018 9019 if (!drv->has_capability) 9020 return -1; 9021 os_memcpy(capa, &drv->capa, sizeof(*capa)); 9022 if (drv->extended_capa && drv->extended_capa_mask) { 9023 capa->extended_capa = drv->extended_capa; 9024 capa->extended_capa_mask = drv->extended_capa_mask; 9025 capa->extended_capa_len = drv->extended_capa_len; 9026 } 9027 9028 if ((capa->flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) && 9029 !drv->allow_p2p_device) { 9030 wpa_printf(MSG_DEBUG, "nl80211: Do not indicate P2P_DEVICE support (p2p_device=1 driver param not specified)"); 9031 capa->flags &= ~WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 9032 } 9033 9034 if (drv->dfs_vendor_cmd_avail == 1) { 9035 msg = nlmsg_alloc(); 9036 if (!msg) 9037 return -ENOMEM; 9038 9039 nl80211_cmd(drv, msg, 0, NL80211_CMD_VENDOR); 9040 9041 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9042 NLA_PUT_U32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA); 9043 NLA_PUT_U32(msg, NL80211_ATTR_VENDOR_SUBCMD, 9044 QCA_NL80211_VENDOR_SUBCMD_DFS_CAPABILITY); 9045 9046 ret = send_and_recv_msgs(drv, msg, dfs_info_handler, 9047 &dfs_capability); 9048 if (!ret) { 9049 if (dfs_capability) 9050 capa->flags |= WPA_DRIVER_FLAGS_DFS_OFFLOAD; 9051 } 9052 } 9053 9054 return ret; 9055 9056 nla_put_failure: 9057 nlmsg_free(msg); 9058 return -ENOBUFS; 9059} 9060 9061 9062static int wpa_driver_nl80211_set_operstate(void *priv, int state) 9063{ 9064 struct i802_bss *bss = priv; 9065 struct wpa_driver_nl80211_data *drv = bss->drv; 9066 9067 wpa_printf(MSG_DEBUG, "nl80211: Set %s operstate %d->%d (%s)", 9068 bss->ifname, drv->operstate, state, 9069 state ? "UP" : "DORMANT"); 9070 drv->operstate = state; 9071 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1, 9072 state ? IF_OPER_UP : IF_OPER_DORMANT); 9073} 9074 9075 9076static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized) 9077{ 9078 struct i802_bss *bss = priv; 9079 struct wpa_driver_nl80211_data *drv = bss->drv; 9080 struct nl_msg *msg; 9081 struct nl80211_sta_flag_update upd; 9082 int ret = -ENOBUFS; 9083 9084 if (!drv->associated && is_zero_ether_addr(drv->bssid) && !authorized) { 9085 wpa_printf(MSG_DEBUG, "nl80211: Skip set_supp_port(unauthorized) while not associated"); 9086 return 0; 9087 } 9088 9089 wpa_printf(MSG_DEBUG, "nl80211: Set supplicant port %sauthorized for " 9090 MACSTR, authorized ? "" : "un", MAC2STR(drv->bssid)); 9091 9092 msg = nlmsg_alloc(); 9093 if (!msg) 9094 return -ENOMEM; 9095 9096 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 9097 9098 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 9099 if_nametoindex(bss->ifname)); 9100 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 9101 9102 os_memset(&upd, 0, sizeof(upd)); 9103 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED); 9104 if (authorized) 9105 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED); 9106 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 9107 9108 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9109 msg = NULL; 9110 if (!ret) 9111 return 0; 9112 nla_put_failure: 9113 nlmsg_free(msg); 9114 wpa_printf(MSG_DEBUG, "nl80211: Failed to set STA flag: %d (%s)", 9115 ret, strerror(-ret)); 9116 return ret; 9117} 9118 9119 9120/* Set kernel driver on given frequency (MHz) */ 9121static int i802_set_freq(void *priv, struct hostapd_freq_params *freq) 9122{ 9123 struct i802_bss *bss = priv; 9124 return wpa_driver_nl80211_set_freq(bss, freq); 9125} 9126 9127 9128static inline int min_int(int a, int b) 9129{ 9130 if (a < b) 9131 return a; 9132 return b; 9133} 9134 9135 9136static int get_key_handler(struct nl_msg *msg, void *arg) 9137{ 9138 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9139 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9140 9141 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9142 genlmsg_attrlen(gnlh, 0), NULL); 9143 9144 /* 9145 * TODO: validate the key index and mac address! 9146 * Otherwise, there's a race condition as soon as 9147 * the kernel starts sending key notifications. 9148 */ 9149 9150 if (tb[NL80211_ATTR_KEY_SEQ]) 9151 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]), 9152 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6)); 9153 return NL_SKIP; 9154} 9155 9156 9157static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr, 9158 int idx, u8 *seq) 9159{ 9160 struct i802_bss *bss = priv; 9161 struct wpa_driver_nl80211_data *drv = bss->drv; 9162 struct nl_msg *msg; 9163 9164 msg = nlmsg_alloc(); 9165 if (!msg) 9166 return -ENOMEM; 9167 9168 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY); 9169 9170 if (addr) 9171 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 9172 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx); 9173 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface)); 9174 9175 memset(seq, 0, 6); 9176 9177 return send_and_recv_msgs(drv, msg, get_key_handler, seq); 9178 nla_put_failure: 9179 nlmsg_free(msg); 9180 return -ENOBUFS; 9181} 9182 9183 9184static int i802_set_rts(void *priv, int rts) 9185{ 9186 struct i802_bss *bss = priv; 9187 struct wpa_driver_nl80211_data *drv = bss->drv; 9188 struct nl_msg *msg; 9189 int ret = -ENOBUFS; 9190 u32 val; 9191 9192 msg = nlmsg_alloc(); 9193 if (!msg) 9194 return -ENOMEM; 9195 9196 if (rts >= 2347) 9197 val = (u32) -1; 9198 else 9199 val = rts; 9200 9201 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 9202 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9203 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val); 9204 9205 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9206 msg = NULL; 9207 if (!ret) 9208 return 0; 9209nla_put_failure: 9210 nlmsg_free(msg); 9211 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: " 9212 "%d (%s)", rts, ret, strerror(-ret)); 9213 return ret; 9214} 9215 9216 9217static int i802_set_frag(void *priv, int frag) 9218{ 9219 struct i802_bss *bss = priv; 9220 struct wpa_driver_nl80211_data *drv = bss->drv; 9221 struct nl_msg *msg; 9222 int ret = -ENOBUFS; 9223 u32 val; 9224 9225 msg = nlmsg_alloc(); 9226 if (!msg) 9227 return -ENOMEM; 9228 9229 if (frag >= 2346) 9230 val = (u32) -1; 9231 else 9232 val = frag; 9233 9234 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 9235 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9236 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val); 9237 9238 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9239 msg = NULL; 9240 if (!ret) 9241 return 0; 9242nla_put_failure: 9243 nlmsg_free(msg); 9244 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold " 9245 "%d: %d (%s)", frag, ret, strerror(-ret)); 9246 return ret; 9247} 9248 9249 9250static int i802_flush(void *priv) 9251{ 9252 struct i802_bss *bss = priv; 9253 struct wpa_driver_nl80211_data *drv = bss->drv; 9254 struct nl_msg *msg; 9255 int res; 9256 9257 msg = nlmsg_alloc(); 9258 if (!msg) 9259 return -1; 9260 9261 wpa_printf(MSG_DEBUG, "nl80211: flush -> DEL_STATION %s (all)", 9262 bss->ifname); 9263 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 9264 9265 /* 9266 * XXX: FIX! this needs to flush all VLANs too 9267 */ 9268 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 9269 if_nametoindex(bss->ifname)); 9270 9271 res = send_and_recv_msgs(drv, msg, NULL, NULL); 9272 if (res) { 9273 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d " 9274 "(%s)", res, strerror(-res)); 9275 } 9276 return res; 9277 nla_put_failure: 9278 nlmsg_free(msg); 9279 return -ENOBUFS; 9280} 9281 9282 9283static int get_sta_handler(struct nl_msg *msg, void *arg) 9284{ 9285 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9286 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9287 struct hostap_sta_driver_data *data = arg; 9288 struct nlattr *stats[NL80211_STA_INFO_MAX + 1]; 9289 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = { 9290 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 }, 9291 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 }, 9292 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 }, 9293 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 }, 9294 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 }, 9295 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 }, 9296 }; 9297 9298 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9299 genlmsg_attrlen(gnlh, 0), NULL); 9300 9301 /* 9302 * TODO: validate the interface and mac address! 9303 * Otherwise, there's a race condition as soon as 9304 * the kernel starts sending station notifications. 9305 */ 9306 9307 if (!tb[NL80211_ATTR_STA_INFO]) { 9308 wpa_printf(MSG_DEBUG, "sta stats missing!"); 9309 return NL_SKIP; 9310 } 9311 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX, 9312 tb[NL80211_ATTR_STA_INFO], 9313 stats_policy)) { 9314 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!"); 9315 return NL_SKIP; 9316 } 9317 9318 if (stats[NL80211_STA_INFO_INACTIVE_TIME]) 9319 data->inactive_msec = 9320 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]); 9321 if (stats[NL80211_STA_INFO_RX_BYTES]) 9322 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]); 9323 if (stats[NL80211_STA_INFO_TX_BYTES]) 9324 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]); 9325 if (stats[NL80211_STA_INFO_RX_PACKETS]) 9326 data->rx_packets = 9327 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]); 9328 if (stats[NL80211_STA_INFO_TX_PACKETS]) 9329 data->tx_packets = 9330 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]); 9331 if (stats[NL80211_STA_INFO_TX_FAILED]) 9332 data->tx_retry_failed = 9333 nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]); 9334 9335 return NL_SKIP; 9336} 9337 9338static int i802_read_sta_data(struct i802_bss *bss, 9339 struct hostap_sta_driver_data *data, 9340 const u8 *addr) 9341{ 9342 struct wpa_driver_nl80211_data *drv = bss->drv; 9343 struct nl_msg *msg; 9344 9345 os_memset(data, 0, sizeof(*data)); 9346 msg = nlmsg_alloc(); 9347 if (!msg) 9348 return -ENOMEM; 9349 9350 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 9351 9352 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 9353 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 9354 9355 return send_and_recv_msgs(drv, msg, get_sta_handler, data); 9356 nla_put_failure: 9357 nlmsg_free(msg); 9358 return -ENOBUFS; 9359} 9360 9361 9362static int i802_set_tx_queue_params(void *priv, int queue, int aifs, 9363 int cw_min, int cw_max, int burst_time) 9364{ 9365 struct i802_bss *bss = priv; 9366 struct wpa_driver_nl80211_data *drv = bss->drv; 9367 struct nl_msg *msg; 9368 struct nlattr *txq, *params; 9369 9370 msg = nlmsg_alloc(); 9371 if (!msg) 9372 return -1; 9373 9374 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 9375 9376 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 9377 9378 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS); 9379 if (!txq) 9380 goto nla_put_failure; 9381 9382 /* We are only sending parameters for a single TXQ at a time */ 9383 params = nla_nest_start(msg, 1); 9384 if (!params) 9385 goto nla_put_failure; 9386 9387 switch (queue) { 9388 case 0: 9389 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO); 9390 break; 9391 case 1: 9392 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI); 9393 break; 9394 case 2: 9395 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE); 9396 break; 9397 case 3: 9398 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK); 9399 break; 9400 } 9401 /* Burst time is configured in units of 0.1 msec and TXOP parameter in 9402 * 32 usec, so need to convert the value here. */ 9403 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32); 9404 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min); 9405 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max); 9406 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs); 9407 9408 nla_nest_end(msg, params); 9409 9410 nla_nest_end(msg, txq); 9411 9412 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 9413 return 0; 9414 msg = NULL; 9415 nla_put_failure: 9416 nlmsg_free(msg); 9417 return -1; 9418} 9419 9420 9421static int i802_set_sta_vlan(struct i802_bss *bss, const u8 *addr, 9422 const char *ifname, int vlan_id) 9423{ 9424 struct wpa_driver_nl80211_data *drv = bss->drv; 9425 struct nl_msg *msg; 9426 int ret = -ENOBUFS; 9427 9428 msg = nlmsg_alloc(); 9429 if (!msg) 9430 return -ENOMEM; 9431 9432 wpa_printf(MSG_DEBUG, "nl80211: %s[%d]: set_sta_vlan(" MACSTR 9433 ", ifname=%s[%d], vlan_id=%d)", 9434 bss->ifname, if_nametoindex(bss->ifname), 9435 MAC2STR(addr), ifname, if_nametoindex(ifname), vlan_id); 9436 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 9437 9438 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 9439 if_nametoindex(bss->ifname)); 9440 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 9441 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN, 9442 if_nametoindex(ifname)); 9443 9444 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9445 msg = NULL; 9446 if (ret < 0) { 9447 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr=" 9448 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)", 9449 MAC2STR(addr), ifname, vlan_id, ret, 9450 strerror(-ret)); 9451 } 9452 nla_put_failure: 9453 nlmsg_free(msg); 9454 return ret; 9455} 9456 9457 9458static int i802_get_inact_sec(void *priv, const u8 *addr) 9459{ 9460 struct hostap_sta_driver_data data; 9461 int ret; 9462 9463 data.inactive_msec = (unsigned long) -1; 9464 ret = i802_read_sta_data(priv, &data, addr); 9465 if (ret || data.inactive_msec == (unsigned long) -1) 9466 return -1; 9467 return data.inactive_msec / 1000; 9468} 9469 9470 9471static int i802_sta_clear_stats(void *priv, const u8 *addr) 9472{ 9473#if 0 9474 /* TODO */ 9475#endif 9476 return 0; 9477} 9478 9479 9480static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, 9481 int reason) 9482{ 9483 struct i802_bss *bss = priv; 9484 struct wpa_driver_nl80211_data *drv = bss->drv; 9485 struct ieee80211_mgmt mgmt; 9486 9487 if (drv->device_ap_sme) 9488 return wpa_driver_nl80211_sta_remove(bss, addr); 9489 9490 memset(&mgmt, 0, sizeof(mgmt)); 9491 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 9492 WLAN_FC_STYPE_DEAUTH); 9493 memcpy(mgmt.da, addr, ETH_ALEN); 9494 memcpy(mgmt.sa, own_addr, ETH_ALEN); 9495 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 9496 mgmt.u.deauth.reason_code = host_to_le16(reason); 9497 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 9498 IEEE80211_HDRLEN + 9499 sizeof(mgmt.u.deauth), 0, 0, 0, 0, 9500 0); 9501} 9502 9503 9504static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr, 9505 int reason) 9506{ 9507 struct i802_bss *bss = priv; 9508 struct wpa_driver_nl80211_data *drv = bss->drv; 9509 struct ieee80211_mgmt mgmt; 9510 9511 if (drv->device_ap_sme) 9512 return wpa_driver_nl80211_sta_remove(bss, addr); 9513 9514 memset(&mgmt, 0, sizeof(mgmt)); 9515 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 9516 WLAN_FC_STYPE_DISASSOC); 9517 memcpy(mgmt.da, addr, ETH_ALEN); 9518 memcpy(mgmt.sa, own_addr, ETH_ALEN); 9519 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 9520 mgmt.u.disassoc.reason_code = host_to_le16(reason); 9521 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 9522 IEEE80211_HDRLEN + 9523 sizeof(mgmt.u.disassoc), 0, 0, 0, 0, 9524 0); 9525} 9526 9527 9528static void dump_ifidx(struct wpa_driver_nl80211_data *drv) 9529{ 9530 char buf[200], *pos, *end; 9531 int i, res; 9532 9533 pos = buf; 9534 end = pos + sizeof(buf); 9535 9536 for (i = 0; i < drv->num_if_indices; i++) { 9537 if (!drv->if_indices[i]) 9538 continue; 9539 res = os_snprintf(pos, end - pos, " %d", drv->if_indices[i]); 9540 if (res < 0 || res >= end - pos) 9541 break; 9542 pos += res; 9543 } 9544 *pos = '\0'; 9545 9546 wpa_printf(MSG_DEBUG, "nl80211: if_indices[%d]:%s", 9547 drv->num_if_indices, buf); 9548} 9549 9550 9551static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 9552{ 9553 int i; 9554 int *old; 9555 9556 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d", 9557 ifidx); 9558 if (have_ifidx(drv, ifidx)) { 9559 wpa_printf(MSG_DEBUG, "nl80211: ifindex %d already in the list", 9560 ifidx); 9561 return; 9562 } 9563 for (i = 0; i < drv->num_if_indices; i++) { 9564 if (drv->if_indices[i] == 0) { 9565 drv->if_indices[i] = ifidx; 9566 dump_ifidx(drv); 9567 return; 9568 } 9569 } 9570 9571 if (drv->if_indices != drv->default_if_indices) 9572 old = drv->if_indices; 9573 else 9574 old = NULL; 9575 9576 drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1, 9577 sizeof(int)); 9578 if (!drv->if_indices) { 9579 if (!old) 9580 drv->if_indices = drv->default_if_indices; 9581 else 9582 drv->if_indices = old; 9583 wpa_printf(MSG_ERROR, "Failed to reallocate memory for " 9584 "interfaces"); 9585 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx); 9586 return; 9587 } else if (!old) 9588 os_memcpy(drv->if_indices, drv->default_if_indices, 9589 sizeof(drv->default_if_indices)); 9590 drv->if_indices[drv->num_if_indices] = ifidx; 9591 drv->num_if_indices++; 9592 dump_ifidx(drv); 9593} 9594 9595 9596static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 9597{ 9598 int i; 9599 9600 for (i = 0; i < drv->num_if_indices; i++) { 9601 if (drv->if_indices[i] == ifidx) { 9602 drv->if_indices[i] = 0; 9603 break; 9604 } 9605 } 9606 dump_ifidx(drv); 9607} 9608 9609 9610static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 9611{ 9612 int i; 9613 9614 for (i = 0; i < drv->num_if_indices; i++) 9615 if (drv->if_indices[i] == ifidx) 9616 return 1; 9617 9618 return 0; 9619} 9620 9621 9622static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val, 9623 const char *bridge_ifname, char *ifname_wds) 9624{ 9625 struct i802_bss *bss = priv; 9626 struct wpa_driver_nl80211_data *drv = bss->drv; 9627 char name[IFNAMSIZ + 1]; 9628 9629 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid); 9630 if (ifname_wds) 9631 os_strlcpy(ifname_wds, name, IFNAMSIZ + 1); 9632 9633 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR 9634 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name); 9635 if (val) { 9636 if (!if_nametoindex(name)) { 9637 if (nl80211_create_iface(drv, name, 9638 NL80211_IFTYPE_AP_VLAN, 9639 bss->addr, 1, NULL, NULL, 0) < 9640 0) 9641 return -1; 9642 if (bridge_ifname && 9643 linux_br_add_if(drv->global->ioctl_sock, 9644 bridge_ifname, name) < 0) 9645 return -1; 9646 } 9647 if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) { 9648 wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA " 9649 "interface %s up", name); 9650 } 9651 return i802_set_sta_vlan(priv, addr, name, 0); 9652 } else { 9653 if (bridge_ifname) 9654 linux_br_del_if(drv->global->ioctl_sock, bridge_ifname, 9655 name); 9656 9657 i802_set_sta_vlan(priv, addr, bss->ifname, 0); 9658 nl80211_remove_iface(drv, if_nametoindex(name)); 9659 return 0; 9660 } 9661} 9662 9663 9664static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx) 9665{ 9666 struct wpa_driver_nl80211_data *drv = eloop_ctx; 9667 struct sockaddr_ll lladdr; 9668 unsigned char buf[3000]; 9669 int len; 9670 socklen_t fromlen = sizeof(lladdr); 9671 9672 len = recvfrom(sock, buf, sizeof(buf), 0, 9673 (struct sockaddr *)&lladdr, &fromlen); 9674 if (len < 0) { 9675 wpa_printf(MSG_ERROR, "nl80211: EAPOL recv failed: %s", 9676 strerror(errno)); 9677 return; 9678 } 9679 9680 if (have_ifidx(drv, lladdr.sll_ifindex)) 9681 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len); 9682} 9683 9684 9685static int i802_check_bridge(struct wpa_driver_nl80211_data *drv, 9686 struct i802_bss *bss, 9687 const char *brname, const char *ifname) 9688{ 9689 int ifindex; 9690 char in_br[IFNAMSIZ]; 9691 9692 os_strlcpy(bss->brname, brname, IFNAMSIZ); 9693 ifindex = if_nametoindex(brname); 9694 if (ifindex == 0) { 9695 /* 9696 * Bridge was configured, but the bridge device does 9697 * not exist. Try to add it now. 9698 */ 9699 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) { 9700 wpa_printf(MSG_ERROR, "nl80211: Failed to add the " 9701 "bridge interface %s: %s", 9702 brname, strerror(errno)); 9703 return -1; 9704 } 9705 bss->added_bridge = 1; 9706 add_ifidx(drv, if_nametoindex(brname)); 9707 } 9708 9709 if (linux_br_get(in_br, ifname) == 0) { 9710 if (os_strcmp(in_br, brname) == 0) 9711 return 0; /* already in the bridge */ 9712 9713 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from " 9714 "bridge %s", ifname, in_br); 9715 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) < 9716 0) { 9717 wpa_printf(MSG_ERROR, "nl80211: Failed to " 9718 "remove interface %s from bridge " 9719 "%s: %s", 9720 ifname, brname, strerror(errno)); 9721 return -1; 9722 } 9723 } 9724 9725 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s", 9726 ifname, brname); 9727 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) { 9728 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s " 9729 "into bridge %s: %s", 9730 ifname, brname, strerror(errno)); 9731 return -1; 9732 } 9733 bss->added_if_into_bridge = 1; 9734 9735 return 0; 9736} 9737 9738 9739static void *i802_init(struct hostapd_data *hapd, 9740 struct wpa_init_params *params) 9741{ 9742 struct wpa_driver_nl80211_data *drv; 9743 struct i802_bss *bss; 9744 size_t i; 9745 char brname[IFNAMSIZ]; 9746 int ifindex, br_ifindex; 9747 int br_added = 0; 9748 9749 bss = wpa_driver_nl80211_drv_init(hapd, params->ifname, 9750 params->global_priv, 1, 9751 params->bssid); 9752 if (bss == NULL) 9753 return NULL; 9754 9755 drv = bss->drv; 9756 9757 if (linux_br_get(brname, params->ifname) == 0) { 9758 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s", 9759 params->ifname, brname); 9760 br_ifindex = if_nametoindex(brname); 9761 } else { 9762 brname[0] = '\0'; 9763 br_ifindex = 0; 9764 } 9765 9766 for (i = 0; i < params->num_bridge; i++) { 9767 if (params->bridge[i]) { 9768 ifindex = if_nametoindex(params->bridge[i]); 9769 if (ifindex) 9770 add_ifidx(drv, ifindex); 9771 if (ifindex == br_ifindex) 9772 br_added = 1; 9773 } 9774 } 9775 if (!br_added && br_ifindex && 9776 (params->num_bridge == 0 || !params->bridge[0])) 9777 add_ifidx(drv, br_ifindex); 9778 9779 /* start listening for EAPOL on the default AP interface */ 9780 add_ifidx(drv, drv->ifindex); 9781 9782 if (params->num_bridge && params->bridge[0] && 9783 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0) 9784 goto failed; 9785 9786 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE)); 9787 if (drv->eapol_sock < 0) { 9788 wpa_printf(MSG_ERROR, "nl80211: socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE) failed: %s", 9789 strerror(errno)); 9790 goto failed; 9791 } 9792 9793 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL)) 9794 { 9795 wpa_printf(MSG_INFO, "nl80211: Could not register read socket for eapol"); 9796 goto failed; 9797 } 9798 9799 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 9800 params->own_addr)) 9801 goto failed; 9802 9803 memcpy(bss->addr, params->own_addr, ETH_ALEN); 9804 9805 return bss; 9806 9807failed: 9808 wpa_driver_nl80211_deinit(bss); 9809 return NULL; 9810} 9811 9812 9813static void i802_deinit(void *priv) 9814{ 9815 struct i802_bss *bss = priv; 9816 wpa_driver_nl80211_deinit(bss); 9817} 9818 9819 9820static enum nl80211_iftype wpa_driver_nl80211_if_type( 9821 enum wpa_driver_if_type type) 9822{ 9823 switch (type) { 9824 case WPA_IF_STATION: 9825 return NL80211_IFTYPE_STATION; 9826 case WPA_IF_P2P_CLIENT: 9827 case WPA_IF_P2P_GROUP: 9828 return NL80211_IFTYPE_P2P_CLIENT; 9829 case WPA_IF_AP_VLAN: 9830 return NL80211_IFTYPE_AP_VLAN; 9831 case WPA_IF_AP_BSS: 9832 return NL80211_IFTYPE_AP; 9833 case WPA_IF_P2P_GO: 9834 return NL80211_IFTYPE_P2P_GO; 9835 case WPA_IF_P2P_DEVICE: 9836 return NL80211_IFTYPE_P2P_DEVICE; 9837 } 9838 return -1; 9839} 9840 9841 9842#ifdef CONFIG_P2P 9843 9844static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr) 9845{ 9846 struct wpa_driver_nl80211_data *drv; 9847 dl_list_for_each(drv, &global->interfaces, 9848 struct wpa_driver_nl80211_data, list) { 9849 if (os_memcmp(addr, drv->first_bss->addr, ETH_ALEN) == 0) 9850 return 1; 9851 } 9852 return 0; 9853} 9854 9855 9856static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv, 9857 u8 *new_addr) 9858{ 9859 unsigned int idx; 9860 9861 if (!drv->global) 9862 return -1; 9863 9864 os_memcpy(new_addr, drv->first_bss->addr, ETH_ALEN); 9865 for (idx = 0; idx < 64; idx++) { 9866 new_addr[0] = drv->first_bss->addr[0] | 0x02; 9867 new_addr[0] ^= idx << 2; 9868 if (!nl80211_addr_in_use(drv->global, new_addr)) 9869 break; 9870 } 9871 if (idx == 64) 9872 return -1; 9873 9874 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address " 9875 MACSTR, MAC2STR(new_addr)); 9876 9877 return 0; 9878} 9879 9880#endif /* CONFIG_P2P */ 9881 9882 9883struct wdev_info { 9884 u64 wdev_id; 9885 int wdev_id_set; 9886 u8 macaddr[ETH_ALEN]; 9887}; 9888 9889static int nl80211_wdev_handler(struct nl_msg *msg, void *arg) 9890{ 9891 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9892 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9893 struct wdev_info *wi = arg; 9894 9895 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9896 genlmsg_attrlen(gnlh, 0), NULL); 9897 if (tb[NL80211_ATTR_WDEV]) { 9898 wi->wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 9899 wi->wdev_id_set = 1; 9900 } 9901 9902 if (tb[NL80211_ATTR_MAC]) 9903 os_memcpy(wi->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 9904 ETH_ALEN); 9905 9906 return NL_SKIP; 9907} 9908 9909 9910static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type, 9911 const char *ifname, const u8 *addr, 9912 void *bss_ctx, void **drv_priv, 9913 char *force_ifname, u8 *if_addr, 9914 const char *bridge, int use_existing) 9915{ 9916 enum nl80211_iftype nlmode; 9917 struct i802_bss *bss = priv; 9918 struct wpa_driver_nl80211_data *drv = bss->drv; 9919 int ifidx; 9920 int added = 1; 9921 9922 if (addr) 9923 os_memcpy(if_addr, addr, ETH_ALEN); 9924 nlmode = wpa_driver_nl80211_if_type(type); 9925 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { 9926 struct wdev_info p2pdev_info; 9927 9928 os_memset(&p2pdev_info, 0, sizeof(p2pdev_info)); 9929 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 9930 0, nl80211_wdev_handler, 9931 &p2pdev_info, use_existing); 9932 if (!p2pdev_info.wdev_id_set || ifidx != 0) { 9933 wpa_printf(MSG_ERROR, "nl80211: Failed to create a P2P Device interface %s", 9934 ifname); 9935 return -1; 9936 } 9937 9938 drv->global->if_add_wdevid = p2pdev_info.wdev_id; 9939 drv->global->if_add_wdevid_set = p2pdev_info.wdev_id_set; 9940 if (!is_zero_ether_addr(p2pdev_info.macaddr)) 9941 os_memcpy(if_addr, p2pdev_info.macaddr, ETH_ALEN); 9942 wpa_printf(MSG_DEBUG, "nl80211: New P2P Device interface %s (0x%llx) created", 9943 ifname, 9944 (long long unsigned int) p2pdev_info.wdev_id); 9945 } else { 9946 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 9947 0, NULL, NULL, use_existing); 9948 if (use_existing && ifidx == -ENFILE) { 9949 added = 0; 9950 ifidx = if_nametoindex(ifname); 9951 } else if (ifidx < 0) { 9952 return -1; 9953 } 9954 } 9955 9956 if (!addr) { 9957 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 9958 os_memcpy(if_addr, bss->addr, ETH_ALEN); 9959 else if (linux_get_ifhwaddr(drv->global->ioctl_sock, 9960 bss->ifname, if_addr) < 0) { 9961 if (added) 9962 nl80211_remove_iface(drv, ifidx); 9963 return -1; 9964 } 9965 } 9966 9967#ifdef CONFIG_P2P 9968 if (!addr && 9969 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP || 9970 type == WPA_IF_P2P_GO)) { 9971 /* Enforce unique P2P Interface Address */ 9972 u8 new_addr[ETH_ALEN]; 9973 9974 if (linux_get_ifhwaddr(drv->global->ioctl_sock, ifname, 9975 new_addr) < 0) { 9976 nl80211_remove_iface(drv, ifidx); 9977 return -1; 9978 } 9979 if (nl80211_addr_in_use(drv->global, new_addr)) { 9980 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address " 9981 "for P2P group interface"); 9982 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) { 9983 nl80211_remove_iface(drv, ifidx); 9984 return -1; 9985 } 9986 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 9987 new_addr) < 0) { 9988 nl80211_remove_iface(drv, ifidx); 9989 return -1; 9990 } 9991 } 9992 os_memcpy(if_addr, new_addr, ETH_ALEN); 9993 } 9994#endif /* CONFIG_P2P */ 9995 9996 if (type == WPA_IF_AP_BSS) { 9997 struct i802_bss *new_bss = os_zalloc(sizeof(*new_bss)); 9998 if (new_bss == NULL) { 9999 if (added) 10000 nl80211_remove_iface(drv, ifidx); 10001 return -1; 10002 } 10003 10004 if (bridge && 10005 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) { 10006 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new " 10007 "interface %s to a bridge %s", 10008 ifname, bridge); 10009 if (added) 10010 nl80211_remove_iface(drv, ifidx); 10011 os_free(new_bss); 10012 return -1; 10013 } 10014 10015 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1)) 10016 { 10017 nl80211_remove_iface(drv, ifidx); 10018 os_free(new_bss); 10019 return -1; 10020 } 10021 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ); 10022 os_memcpy(new_bss->addr, if_addr, ETH_ALEN); 10023 new_bss->ifindex = ifidx; 10024 new_bss->drv = drv; 10025 new_bss->next = drv->first_bss->next; 10026 new_bss->freq = drv->first_bss->freq; 10027 new_bss->ctx = bss_ctx; 10028 new_bss->added_if = added; 10029 drv->first_bss->next = new_bss; 10030 if (drv_priv) 10031 *drv_priv = new_bss; 10032 nl80211_init_bss(new_bss); 10033 10034 /* Subscribe management frames for this WPA_IF_AP_BSS */ 10035 if (nl80211_setup_ap(new_bss)) 10036 return -1; 10037 } 10038 10039 if (drv->global) 10040 drv->global->if_add_ifindex = ifidx; 10041 10042 if (ifidx > 0) 10043 add_ifidx(drv, ifidx); 10044 10045 return 0; 10046} 10047 10048 10049static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 10050 enum wpa_driver_if_type type, 10051 const char *ifname) 10052{ 10053 struct wpa_driver_nl80211_data *drv = bss->drv; 10054 int ifindex = if_nametoindex(ifname); 10055 10056 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d added_if=%d", 10057 __func__, type, ifname, ifindex, bss->added_if); 10058 if (ifindex > 0 && (bss->added_if || bss->ifindex != ifindex)) 10059 nl80211_remove_iface(drv, ifindex); 10060 else if (ifindex > 0 && !bss->added_if) 10061 del_ifidx(drv, ifindex); 10062 10063 if (type != WPA_IF_AP_BSS) 10064 return 0; 10065 10066 if (bss->added_if_into_bridge) { 10067 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 10068 bss->ifname) < 0) 10069 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 10070 "interface %s from bridge %s: %s", 10071 bss->ifname, bss->brname, strerror(errno)); 10072 } 10073 if (bss->added_bridge) { 10074 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 10075 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 10076 "bridge %s: %s", 10077 bss->brname, strerror(errno)); 10078 } 10079 10080 if (bss != drv->first_bss) { 10081 struct i802_bss *tbss; 10082 10083 wpa_printf(MSG_DEBUG, "nl80211: Not the first BSS - remove it"); 10084 for (tbss = drv->first_bss; tbss; tbss = tbss->next) { 10085 if (tbss->next == bss) { 10086 tbss->next = bss->next; 10087 /* Unsubscribe management frames */ 10088 nl80211_teardown_ap(bss); 10089 nl80211_destroy_bss(bss); 10090 if (!bss->added_if) 10091 i802_set_iface_flags(bss, 0); 10092 os_free(bss); 10093 bss = NULL; 10094 break; 10095 } 10096 } 10097 if (bss) 10098 wpa_printf(MSG_INFO, "nl80211: %s - could not find " 10099 "BSS %p in the list", __func__, bss); 10100 } else { 10101 wpa_printf(MSG_DEBUG, "nl80211: First BSS - reassign context"); 10102 nl80211_teardown_ap(bss); 10103 if (!bss->added_if && !drv->first_bss->next) 10104 wpa_driver_nl80211_del_beacon(drv); 10105 nl80211_destroy_bss(bss); 10106 if (!bss->added_if) 10107 i802_set_iface_flags(bss, 0); 10108 if (drv->first_bss->next) { 10109 drv->first_bss = drv->first_bss->next; 10110 drv->ctx = drv->first_bss->ctx; 10111 os_free(bss); 10112 } else { 10113 wpa_printf(MSG_DEBUG, "nl80211: No second BSS to reassign context to"); 10114 } 10115 } 10116 10117 return 0; 10118} 10119 10120 10121static int cookie_handler(struct nl_msg *msg, void *arg) 10122{ 10123 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 10124 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 10125 u64 *cookie = arg; 10126 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 10127 genlmsg_attrlen(gnlh, 0), NULL); 10128 if (tb[NL80211_ATTR_COOKIE]) 10129 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 10130 return NL_SKIP; 10131} 10132 10133 10134static int nl80211_send_frame_cmd(struct i802_bss *bss, 10135 unsigned int freq, unsigned int wait, 10136 const u8 *buf, size_t buf_len, 10137 u64 *cookie_out, int no_cck, int no_ack, 10138 int offchanok) 10139{ 10140 struct wpa_driver_nl80211_data *drv = bss->drv; 10141 struct nl_msg *msg; 10142 u64 cookie; 10143 int ret = -1; 10144 10145 msg = nlmsg_alloc(); 10146 if (!msg) 10147 return -1; 10148 10149 wpa_printf(MSG_MSGDUMP, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d " 10150 "no_ack=%d offchanok=%d", 10151 freq, wait, no_cck, no_ack, offchanok); 10152 wpa_hexdump(MSG_MSGDUMP, "CMD_FRAME", buf, buf_len); 10153 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME); 10154 10155 if (nl80211_set_iface_id(msg, bss) < 0) 10156 goto nla_put_failure; 10157 if (freq) 10158 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 10159 if (wait) 10160 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait); 10161 if (offchanok && ((drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) || 10162 drv->test_use_roc_tx)) 10163 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK); 10164 if (no_cck) 10165 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 10166 if (no_ack) 10167 NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK); 10168 10169 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf); 10170 10171 cookie = 0; 10172 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 10173 msg = NULL; 10174 if (ret) { 10175 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d " 10176 "(%s) (freq=%u wait=%u)", ret, strerror(-ret), 10177 freq, wait); 10178 goto nla_put_failure; 10179 } 10180 wpa_printf(MSG_MSGDUMP, "nl80211: Frame TX command accepted%s; " 10181 "cookie 0x%llx", no_ack ? " (no ACK)" : "", 10182 (long long unsigned int) cookie); 10183 10184 if (cookie_out) 10185 *cookie_out = no_ack ? (u64) -1 : cookie; 10186 10187nla_put_failure: 10188 nlmsg_free(msg); 10189 return ret; 10190} 10191 10192 10193static int wpa_driver_nl80211_send_action(struct i802_bss *bss, 10194 unsigned int freq, 10195 unsigned int wait_time, 10196 const u8 *dst, const u8 *src, 10197 const u8 *bssid, 10198 const u8 *data, size_t data_len, 10199 int no_cck) 10200{ 10201 struct wpa_driver_nl80211_data *drv = bss->drv; 10202 int ret = -1; 10203 u8 *buf; 10204 struct ieee80211_hdr *hdr; 10205 10206 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, " 10207 "freq=%u MHz wait=%d ms no_cck=%d)", 10208 drv->ifindex, freq, wait_time, no_cck); 10209 10210 buf = os_zalloc(24 + data_len); 10211 if (buf == NULL) 10212 return ret; 10213 os_memcpy(buf + 24, data, data_len); 10214 hdr = (struct ieee80211_hdr *) buf; 10215 hdr->frame_control = 10216 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION); 10217 os_memcpy(hdr->addr1, dst, ETH_ALEN); 10218 os_memcpy(hdr->addr2, src, ETH_ALEN); 10219 os_memcpy(hdr->addr3, bssid, ETH_ALEN); 10220 10221 if (is_ap_interface(drv->nlmode) && 10222 (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) || 10223 (int) freq == bss->freq || drv->device_ap_sme || 10224 !drv->use_monitor)) 10225 ret = wpa_driver_nl80211_send_mlme(bss, buf, 24 + data_len, 10226 0, freq, no_cck, 1, 10227 wait_time); 10228 else 10229 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf, 10230 24 + data_len, 10231 &drv->send_action_cookie, 10232 no_cck, 0, 1); 10233 10234 os_free(buf); 10235 return ret; 10236} 10237 10238 10239static void wpa_driver_nl80211_send_action_cancel_wait(void *priv) 10240{ 10241 struct i802_bss *bss = priv; 10242 struct wpa_driver_nl80211_data *drv = bss->drv; 10243 struct nl_msg *msg; 10244 int ret; 10245 10246 msg = nlmsg_alloc(); 10247 if (!msg) 10248 return; 10249 10250 wpa_printf(MSG_DEBUG, "nl80211: Cancel TX frame wait: cookie=0x%llx", 10251 (long long unsigned int) drv->send_action_cookie); 10252 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL); 10253 10254 if (nl80211_set_iface_id(msg, bss) < 0) 10255 goto nla_put_failure; 10256 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie); 10257 10258 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10259 msg = NULL; 10260 if (ret) 10261 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d " 10262 "(%s)", ret, strerror(-ret)); 10263 10264 nla_put_failure: 10265 nlmsg_free(msg); 10266} 10267 10268 10269static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq, 10270 unsigned int duration) 10271{ 10272 struct i802_bss *bss = priv; 10273 struct wpa_driver_nl80211_data *drv = bss->drv; 10274 struct nl_msg *msg; 10275 int ret; 10276 u64 cookie; 10277 10278 msg = nlmsg_alloc(); 10279 if (!msg) 10280 return -1; 10281 10282 nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL); 10283 10284 if (nl80211_set_iface_id(msg, bss) < 0) 10285 goto nla_put_failure; 10286 10287 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 10288 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); 10289 10290 cookie = 0; 10291 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 10292 msg = NULL; 10293 if (ret == 0) { 10294 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie " 10295 "0x%llx for freq=%u MHz duration=%u", 10296 (long long unsigned int) cookie, freq, duration); 10297 drv->remain_on_chan_cookie = cookie; 10298 drv->pending_remain_on_chan = 1; 10299 return 0; 10300 } 10301 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel " 10302 "(freq=%d duration=%u): %d (%s)", 10303 freq, duration, ret, strerror(-ret)); 10304nla_put_failure: 10305 nlmsg_free(msg); 10306 return -1; 10307} 10308 10309 10310static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv) 10311{ 10312 struct i802_bss *bss = priv; 10313 struct wpa_driver_nl80211_data *drv = bss->drv; 10314 struct nl_msg *msg; 10315 int ret; 10316 10317 if (!drv->pending_remain_on_chan) { 10318 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel " 10319 "to cancel"); 10320 return -1; 10321 } 10322 10323 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie " 10324 "0x%llx", 10325 (long long unsigned int) drv->remain_on_chan_cookie); 10326 10327 msg = nlmsg_alloc(); 10328 if (!msg) 10329 return -1; 10330 10331 nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL); 10332 10333 if (nl80211_set_iface_id(msg, bss) < 0) 10334 goto nla_put_failure; 10335 10336 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie); 10337 10338 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10339 msg = NULL; 10340 if (ret == 0) 10341 return 0; 10342 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: " 10343 "%d (%s)", ret, strerror(-ret)); 10344nla_put_failure: 10345 nlmsg_free(msg); 10346 return -1; 10347} 10348 10349 10350static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report) 10351{ 10352 struct wpa_driver_nl80211_data *drv = bss->drv; 10353 10354 if (!report) { 10355 if (bss->nl_preq && drv->device_ap_sme && 10356 is_ap_interface(drv->nlmode)) { 10357 /* 10358 * Do not disable Probe Request reporting that was 10359 * enabled in nl80211_setup_ap(). 10360 */ 10361 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of " 10362 "Probe Request reporting nl_preq=%p while " 10363 "in AP mode", bss->nl_preq); 10364 } else if (bss->nl_preq) { 10365 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request " 10366 "reporting nl_preq=%p", bss->nl_preq); 10367 nl80211_destroy_eloop_handle(&bss->nl_preq); 10368 } 10369 return 0; 10370 } 10371 10372 if (bss->nl_preq) { 10373 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting " 10374 "already on! nl_preq=%p", bss->nl_preq); 10375 return 0; 10376 } 10377 10378 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq"); 10379 if (bss->nl_preq == NULL) 10380 return -1; 10381 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request " 10382 "reporting nl_preq=%p", bss->nl_preq); 10383 10384 if (nl80211_register_frame(bss, bss->nl_preq, 10385 (WLAN_FC_TYPE_MGMT << 2) | 10386 (WLAN_FC_STYPE_PROBE_REQ << 4), 10387 NULL, 0) < 0) 10388 goto out_err; 10389 10390 nl80211_register_eloop_read(&bss->nl_preq, 10391 wpa_driver_nl80211_event_receive, 10392 bss->nl_cb); 10393 10394 return 0; 10395 10396 out_err: 10397 nl_destroy_handles(&bss->nl_preq); 10398 return -1; 10399} 10400 10401 10402static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 10403 int ifindex, int disabled) 10404{ 10405 struct nl_msg *msg; 10406 struct nlattr *bands, *band; 10407 int ret; 10408 10409 msg = nlmsg_alloc(); 10410 if (!msg) 10411 return -1; 10412 10413 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK); 10414 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 10415 10416 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES); 10417 if (!bands) 10418 goto nla_put_failure; 10419 10420 /* 10421 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything 10422 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS 10423 * rates. All 5 GHz rates are left enabled. 10424 */ 10425 band = nla_nest_start(msg, NL80211_BAND_2GHZ); 10426 if (!band) 10427 goto nla_put_failure; 10428 if (disabled) { 10429 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8, 10430 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 10431 } 10432 nla_nest_end(msg, band); 10433 10434 nla_nest_end(msg, bands); 10435 10436 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10437 msg = NULL; 10438 if (ret) { 10439 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d " 10440 "(%s)", ret, strerror(-ret)); 10441 } else 10442 drv->disabled_11b_rates = disabled; 10443 10444 return ret; 10445 10446nla_put_failure: 10447 nlmsg_free(msg); 10448 return -1; 10449} 10450 10451 10452static int wpa_driver_nl80211_deinit_ap(void *priv) 10453{ 10454 struct i802_bss *bss = priv; 10455 struct wpa_driver_nl80211_data *drv = bss->drv; 10456 if (!is_ap_interface(drv->nlmode)) 10457 return -1; 10458 wpa_driver_nl80211_del_beacon(drv); 10459 10460 /* 10461 * If the P2P GO interface was dynamically added, then it is 10462 * possible that the interface change to station is not possible. 10463 */ 10464 if (drv->nlmode == NL80211_IFTYPE_P2P_GO && bss->if_dynamic) 10465 return 0; 10466 10467 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 10468} 10469 10470 10471static int wpa_driver_nl80211_stop_ap(void *priv) 10472{ 10473 struct i802_bss *bss = priv; 10474 struct wpa_driver_nl80211_data *drv = bss->drv; 10475 if (!is_ap_interface(drv->nlmode)) 10476 return -1; 10477 wpa_driver_nl80211_del_beacon(drv); 10478 bss->beacon_set = 0; 10479 return 0; 10480} 10481 10482 10483static int wpa_driver_nl80211_deinit_p2p_cli(void *priv) 10484{ 10485 struct i802_bss *bss = priv; 10486 struct wpa_driver_nl80211_data *drv = bss->drv; 10487 if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT) 10488 return -1; 10489 10490 /* 10491 * If the P2P Client interface was dynamically added, then it is 10492 * possible that the interface change to station is not possible. 10493 */ 10494 if (bss->if_dynamic) 10495 return 0; 10496 10497 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 10498} 10499 10500 10501static void wpa_driver_nl80211_resume(void *priv) 10502{ 10503 struct i802_bss *bss = priv; 10504 10505 if (i802_set_iface_flags(bss, 1)) 10506 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on resume event"); 10507} 10508 10509 10510static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap, 10511 const u8 *ies, size_t ies_len) 10512{ 10513 struct i802_bss *bss = priv; 10514 struct wpa_driver_nl80211_data *drv = bss->drv; 10515 int ret; 10516 u8 *data, *pos; 10517 size_t data_len; 10518 const u8 *own_addr = bss->addr; 10519 10520 if (action != 1) { 10521 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action " 10522 "action %d", action); 10523 return -1; 10524 } 10525 10526 /* 10527 * Action frame payload: 10528 * Category[1] = 6 (Fast BSS Transition) 10529 * Action[1] = 1 (Fast BSS Transition Request) 10530 * STA Address 10531 * Target AP Address 10532 * FT IEs 10533 */ 10534 10535 data_len = 2 + 2 * ETH_ALEN + ies_len; 10536 data = os_malloc(data_len); 10537 if (data == NULL) 10538 return -1; 10539 pos = data; 10540 *pos++ = 0x06; /* FT Action category */ 10541 *pos++ = action; 10542 os_memcpy(pos, own_addr, ETH_ALEN); 10543 pos += ETH_ALEN; 10544 os_memcpy(pos, target_ap, ETH_ALEN); 10545 pos += ETH_ALEN; 10546 os_memcpy(pos, ies, ies_len); 10547 10548 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0, 10549 drv->bssid, own_addr, drv->bssid, 10550 data, data_len, 0); 10551 os_free(data); 10552 10553 return ret; 10554} 10555 10556 10557static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis) 10558{ 10559 struct i802_bss *bss = priv; 10560 struct wpa_driver_nl80211_data *drv = bss->drv; 10561 struct nl_msg *msg; 10562 struct nlattr *cqm; 10563 int ret = -1; 10564 10565 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d " 10566 "hysteresis=%d", threshold, hysteresis); 10567 10568 msg = nlmsg_alloc(); 10569 if (!msg) 10570 return -1; 10571 10572 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM); 10573 10574 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10575 10576 cqm = nla_nest_start(msg, NL80211_ATTR_CQM); 10577 if (cqm == NULL) 10578 goto nla_put_failure; 10579 10580 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THOLD, threshold); 10581 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_HYST, hysteresis); 10582 nla_nest_end(msg, cqm); 10583 10584 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10585 msg = NULL; 10586 10587nla_put_failure: 10588 nlmsg_free(msg); 10589 return ret; 10590} 10591 10592 10593static int get_channel_width(struct nl_msg *msg, void *arg) 10594{ 10595 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 10596 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 10597 struct wpa_signal_info *sig_change = arg; 10598 10599 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 10600 genlmsg_attrlen(gnlh, 0), NULL); 10601 10602 sig_change->center_frq1 = -1; 10603 sig_change->center_frq2 = -1; 10604 sig_change->chanwidth = CHAN_WIDTH_UNKNOWN; 10605 10606 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) { 10607 sig_change->chanwidth = convert2width( 10608 nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH])); 10609 if (tb[NL80211_ATTR_CENTER_FREQ1]) 10610 sig_change->center_frq1 = 10611 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); 10612 if (tb[NL80211_ATTR_CENTER_FREQ2]) 10613 sig_change->center_frq2 = 10614 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); 10615 } 10616 10617 return NL_SKIP; 10618} 10619 10620 10621static int nl80211_get_channel_width(struct wpa_driver_nl80211_data *drv, 10622 struct wpa_signal_info *sig) 10623{ 10624 struct nl_msg *msg; 10625 10626 msg = nlmsg_alloc(); 10627 if (!msg) 10628 return -ENOMEM; 10629 10630 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_INTERFACE); 10631 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10632 10633 return send_and_recv_msgs(drv, msg, get_channel_width, sig); 10634 10635nla_put_failure: 10636 nlmsg_free(msg); 10637 return -ENOBUFS; 10638} 10639 10640 10641static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si) 10642{ 10643 struct i802_bss *bss = priv; 10644 struct wpa_driver_nl80211_data *drv = bss->drv; 10645 int res; 10646 10647 os_memset(si, 0, sizeof(*si)); 10648 res = nl80211_get_link_signal(drv, si); 10649 if (res != 0) 10650 return res; 10651 10652 res = nl80211_get_channel_width(drv, si); 10653 if (res != 0) 10654 return res; 10655 10656 return nl80211_get_link_noise(drv, si); 10657} 10658 10659 10660static int wpa_driver_nl80211_shared_freq(void *priv) 10661{ 10662 struct i802_bss *bss = priv; 10663 struct wpa_driver_nl80211_data *drv = bss->drv; 10664 struct wpa_driver_nl80211_data *driver; 10665 int freq = 0; 10666 10667 /* 10668 * If the same PHY is in connected state with some other interface, 10669 * then retrieve the assoc freq. 10670 */ 10671 wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s", 10672 drv->phyname); 10673 10674 dl_list_for_each(driver, &drv->global->interfaces, 10675 struct wpa_driver_nl80211_data, list) { 10676 if (drv == driver || 10677 os_strcmp(drv->phyname, driver->phyname) != 0 || 10678 !driver->associated) 10679 continue; 10680 10681 wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s " 10682 MACSTR, 10683 driver->phyname, driver->first_bss->ifname, 10684 MAC2STR(driver->first_bss->addr)); 10685 if (is_ap_interface(driver->nlmode)) 10686 freq = driver->first_bss->freq; 10687 else 10688 freq = nl80211_get_assoc_freq(driver); 10689 wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d", 10690 drv->phyname, freq); 10691 } 10692 10693 if (!freq) 10694 wpa_printf(MSG_DEBUG, "nl80211: No shared interface for " 10695 "PHY (%s) in associated state", drv->phyname); 10696 10697 return freq; 10698} 10699 10700 10701static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len, 10702 int encrypt) 10703{ 10704 struct i802_bss *bss = priv; 10705 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0, 10706 0, 0, 0, 0); 10707} 10708 10709 10710static int nl80211_set_param(void *priv, const char *param) 10711{ 10712 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param); 10713 if (param == NULL) 10714 return 0; 10715 10716#ifdef CONFIG_P2P 10717 if (os_strstr(param, "use_p2p_group_interface=1")) { 10718 struct i802_bss *bss = priv; 10719 struct wpa_driver_nl80211_data *drv = bss->drv; 10720 10721 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 10722 "interface"); 10723 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 10724 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 10725 } 10726 10727 if (os_strstr(param, "p2p_device=1")) { 10728 struct i802_bss *bss = priv; 10729 struct wpa_driver_nl80211_data *drv = bss->drv; 10730 drv->allow_p2p_device = 1; 10731 } 10732#endif /* CONFIG_P2P */ 10733 10734 if (os_strstr(param, "use_monitor=1")) { 10735 struct i802_bss *bss = priv; 10736 struct wpa_driver_nl80211_data *drv = bss->drv; 10737 drv->use_monitor = 1; 10738 } 10739 10740 if (os_strstr(param, "force_connect_cmd=1")) { 10741 struct i802_bss *bss = priv; 10742 struct wpa_driver_nl80211_data *drv = bss->drv; 10743 drv->capa.flags &= ~WPA_DRIVER_FLAGS_SME; 10744 } 10745 10746 if (os_strstr(param, "no_offchannel_tx=1")) { 10747 struct i802_bss *bss = priv; 10748 struct wpa_driver_nl80211_data *drv = bss->drv; 10749 drv->capa.flags &= ~WPA_DRIVER_FLAGS_OFFCHANNEL_TX; 10750 drv->test_use_roc_tx = 1; 10751 } 10752 10753 return 0; 10754} 10755 10756 10757static void * nl80211_global_init(void) 10758{ 10759 struct nl80211_global *global; 10760 struct netlink_config *cfg; 10761 10762 global = os_zalloc(sizeof(*global)); 10763 if (global == NULL) 10764 return NULL; 10765 global->ioctl_sock = -1; 10766 dl_list_init(&global->interfaces); 10767 global->if_add_ifindex = -1; 10768 10769 cfg = os_zalloc(sizeof(*cfg)); 10770 if (cfg == NULL) 10771 goto err; 10772 10773 cfg->ctx = global; 10774 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink; 10775 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink; 10776 global->netlink = netlink_init(cfg); 10777 if (global->netlink == NULL) { 10778 os_free(cfg); 10779 goto err; 10780 } 10781 10782 if (wpa_driver_nl80211_init_nl_global(global) < 0) 10783 goto err; 10784 10785 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0); 10786 if (global->ioctl_sock < 0) { 10787 wpa_printf(MSG_ERROR, "nl80211: socket(PF_INET,SOCK_DGRAM) failed: %s", 10788 strerror(errno)); 10789 goto err; 10790 } 10791 10792 return global; 10793 10794err: 10795 nl80211_global_deinit(global); 10796 return NULL; 10797} 10798 10799 10800static void nl80211_global_deinit(void *priv) 10801{ 10802 struct nl80211_global *global = priv; 10803 if (global == NULL) 10804 return; 10805 if (!dl_list_empty(&global->interfaces)) { 10806 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at " 10807 "nl80211_global_deinit", 10808 dl_list_len(&global->interfaces)); 10809 } 10810 10811 if (global->netlink) 10812 netlink_deinit(global->netlink); 10813 10814 nl_destroy_handles(&global->nl); 10815 10816 if (global->nl_event) 10817 nl80211_destroy_eloop_handle(&global->nl_event); 10818 10819 nl_cb_put(global->nl_cb); 10820 10821 if (global->ioctl_sock >= 0) 10822 close(global->ioctl_sock); 10823 10824 os_free(global); 10825} 10826 10827 10828static const char * nl80211_get_radio_name(void *priv) 10829{ 10830 struct i802_bss *bss = priv; 10831 struct wpa_driver_nl80211_data *drv = bss->drv; 10832 return drv->phyname; 10833} 10834 10835 10836static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid, 10837 const u8 *pmkid) 10838{ 10839 struct nl_msg *msg; 10840 10841 msg = nlmsg_alloc(); 10842 if (!msg) 10843 return -ENOMEM; 10844 10845 nl80211_cmd(bss->drv, msg, 0, cmd); 10846 10847 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 10848 if (pmkid) 10849 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid); 10850 if (bssid) 10851 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); 10852 10853 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 10854 nla_put_failure: 10855 nlmsg_free(msg); 10856 return -ENOBUFS; 10857} 10858 10859 10860static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 10861{ 10862 struct i802_bss *bss = priv; 10863 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid)); 10864 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid); 10865} 10866 10867 10868static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 10869{ 10870 struct i802_bss *bss = priv; 10871 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR, 10872 MAC2STR(bssid)); 10873 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid); 10874} 10875 10876 10877static int nl80211_flush_pmkid(void *priv) 10878{ 10879 struct i802_bss *bss = priv; 10880 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs"); 10881 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL); 10882} 10883 10884 10885static void clean_survey_results(struct survey_results *survey_results) 10886{ 10887 struct freq_survey *survey, *tmp; 10888 10889 if (dl_list_empty(&survey_results->survey_list)) 10890 return; 10891 10892 dl_list_for_each_safe(survey, tmp, &survey_results->survey_list, 10893 struct freq_survey, list) { 10894 dl_list_del(&survey->list); 10895 os_free(survey); 10896 } 10897} 10898 10899 10900static void add_survey(struct nlattr **sinfo, u32 ifidx, 10901 struct dl_list *survey_list) 10902{ 10903 struct freq_survey *survey; 10904 10905 survey = os_zalloc(sizeof(struct freq_survey)); 10906 if (!survey) 10907 return; 10908 10909 survey->ifidx = ifidx; 10910 survey->freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); 10911 survey->filled = 0; 10912 10913 if (sinfo[NL80211_SURVEY_INFO_NOISE]) { 10914 survey->nf = (int8_t) 10915 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 10916 survey->filled |= SURVEY_HAS_NF; 10917 } 10918 10919 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]) { 10920 survey->channel_time = 10921 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]); 10922 survey->filled |= SURVEY_HAS_CHAN_TIME; 10923 } 10924 10925 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]) { 10926 survey->channel_time_busy = 10927 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]); 10928 survey->filled |= SURVEY_HAS_CHAN_TIME_BUSY; 10929 } 10930 10931 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]) { 10932 survey->channel_time_rx = 10933 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]); 10934 survey->filled |= SURVEY_HAS_CHAN_TIME_RX; 10935 } 10936 10937 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]) { 10938 survey->channel_time_tx = 10939 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]); 10940 survey->filled |= SURVEY_HAS_CHAN_TIME_TX; 10941 } 10942 10943 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)", 10944 survey->freq, 10945 survey->nf, 10946 (unsigned long int) survey->channel_time, 10947 (unsigned long int) survey->channel_time_busy, 10948 (unsigned long int) survey->channel_time_tx, 10949 (unsigned long int) survey->channel_time_rx, 10950 survey->filled); 10951 10952 dl_list_add_tail(survey_list, &survey->list); 10953} 10954 10955 10956static int check_survey_ok(struct nlattr **sinfo, u32 surveyed_freq, 10957 unsigned int freq_filter) 10958{ 10959 if (!freq_filter) 10960 return 1; 10961 10962 return freq_filter == surveyed_freq; 10963} 10964 10965 10966static int survey_handler(struct nl_msg *msg, void *arg) 10967{ 10968 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 10969 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 10970 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 10971 struct survey_results *survey_results; 10972 u32 surveyed_freq = 0; 10973 u32 ifidx; 10974 10975 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 10976 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 10977 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 10978 }; 10979 10980 survey_results = (struct survey_results *) arg; 10981 10982 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 10983 genlmsg_attrlen(gnlh, 0), NULL); 10984 10985 if (!tb[NL80211_ATTR_IFINDEX]) 10986 return NL_SKIP; 10987 10988 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 10989 10990 if (!tb[NL80211_ATTR_SURVEY_INFO]) 10991 return NL_SKIP; 10992 10993 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 10994 tb[NL80211_ATTR_SURVEY_INFO], 10995 survey_policy)) 10996 return NL_SKIP; 10997 10998 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) { 10999 wpa_printf(MSG_ERROR, "nl80211: Invalid survey data"); 11000 return NL_SKIP; 11001 } 11002 11003 surveyed_freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); 11004 11005 if (!check_survey_ok(sinfo, surveyed_freq, 11006 survey_results->freq_filter)) 11007 return NL_SKIP; 11008 11009 if (survey_results->freq_filter && 11010 survey_results->freq_filter != surveyed_freq) { 11011 wpa_printf(MSG_EXCESSIVE, "nl80211: Ignoring survey data for freq %d MHz", 11012 surveyed_freq); 11013 return NL_SKIP; 11014 } 11015 11016 add_survey(sinfo, ifidx, &survey_results->survey_list); 11017 11018 return NL_SKIP; 11019} 11020 11021 11022static int wpa_driver_nl80211_get_survey(void *priv, unsigned int freq) 11023{ 11024 struct i802_bss *bss = priv; 11025 struct wpa_driver_nl80211_data *drv = bss->drv; 11026 struct nl_msg *msg; 11027 int err = -ENOBUFS; 11028 union wpa_event_data data; 11029 struct survey_results *survey_results; 11030 11031 os_memset(&data, 0, sizeof(data)); 11032 survey_results = &data.survey_results; 11033 11034 dl_list_init(&survey_results->survey_list); 11035 11036 msg = nlmsg_alloc(); 11037 if (!msg) 11038 goto nla_put_failure; 11039 11040 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 11041 11042 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11043 11044 if (freq) 11045 data.survey_results.freq_filter = freq; 11046 11047 do { 11048 wpa_printf(MSG_DEBUG, "nl80211: Fetch survey data"); 11049 err = send_and_recv_msgs(drv, msg, survey_handler, 11050 survey_results); 11051 } while (err > 0); 11052 11053 if (err) { 11054 wpa_printf(MSG_ERROR, "nl80211: Failed to process survey data"); 11055 goto out_clean; 11056 } 11057 11058 wpa_supplicant_event(drv->ctx, EVENT_SURVEY, &data); 11059 11060out_clean: 11061 clean_survey_results(survey_results); 11062nla_put_failure: 11063 return err; 11064} 11065 11066 11067static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck, 11068 const u8 *replay_ctr) 11069{ 11070 struct i802_bss *bss = priv; 11071 struct wpa_driver_nl80211_data *drv = bss->drv; 11072 struct nlattr *replay_nested; 11073 struct nl_msg *msg; 11074 11075 msg = nlmsg_alloc(); 11076 if (!msg) 11077 return; 11078 11079 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD); 11080 11081 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 11082 11083 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); 11084 if (!replay_nested) 11085 goto nla_put_failure; 11086 11087 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek); 11088 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck); 11089 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN, 11090 replay_ctr); 11091 11092 nla_nest_end(msg, replay_nested); 11093 11094 send_and_recv_msgs(drv, msg, NULL, NULL); 11095 return; 11096 nla_put_failure: 11097 nlmsg_free(msg); 11098} 11099 11100 11101static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr, 11102 const u8 *addr, int qos) 11103{ 11104 /* send data frame to poll STA and check whether 11105 * this frame is ACKed */ 11106 struct { 11107 struct ieee80211_hdr hdr; 11108 u16 qos_ctl; 11109 } STRUCT_PACKED nulldata; 11110 size_t size; 11111 11112 /* Send data frame to poll STA and check whether this frame is ACKed */ 11113 11114 os_memset(&nulldata, 0, sizeof(nulldata)); 11115 11116 if (qos) { 11117 nulldata.hdr.frame_control = 11118 IEEE80211_FC(WLAN_FC_TYPE_DATA, 11119 WLAN_FC_STYPE_QOS_NULL); 11120 size = sizeof(nulldata); 11121 } else { 11122 nulldata.hdr.frame_control = 11123 IEEE80211_FC(WLAN_FC_TYPE_DATA, 11124 WLAN_FC_STYPE_NULLFUNC); 11125 size = sizeof(struct ieee80211_hdr); 11126 } 11127 11128 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS); 11129 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN); 11130 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 11131 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 11132 11133 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0, 0, 0, 11134 0, 0) < 0) 11135 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to " 11136 "send poll frame"); 11137} 11138 11139static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr, 11140 int qos) 11141{ 11142 struct i802_bss *bss = priv; 11143 struct wpa_driver_nl80211_data *drv = bss->drv; 11144 struct nl_msg *msg; 11145 11146 if (!drv->poll_command_supported) { 11147 nl80211_send_null_frame(bss, own_addr, addr, qos); 11148 return; 11149 } 11150 11151 msg = nlmsg_alloc(); 11152 if (!msg) 11153 return; 11154 11155 nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT); 11156 11157 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 11158 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 11159 11160 send_and_recv_msgs(drv, msg, NULL, NULL); 11161 return; 11162 nla_put_failure: 11163 nlmsg_free(msg); 11164} 11165 11166 11167static int nl80211_set_power_save(struct i802_bss *bss, int enabled) 11168{ 11169 struct nl_msg *msg; 11170 11171 msg = nlmsg_alloc(); 11172 if (!msg) 11173 return -ENOMEM; 11174 11175 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE); 11176 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 11177 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, 11178 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED); 11179 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 11180nla_put_failure: 11181 nlmsg_free(msg); 11182 return -ENOBUFS; 11183} 11184 11185 11186static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps, 11187 int ctwindow) 11188{ 11189 struct i802_bss *bss = priv; 11190 11191 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d " 11192 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow); 11193 11194 if (opp_ps != -1 || ctwindow != -1) { 11195#ifdef ANDROID_P2P 11196 wpa_driver_set_p2p_ps(priv, legacy_ps, opp_ps, ctwindow); 11197#else /* ANDROID_P2P */ 11198 return -1; /* Not yet supported */ 11199#endif /* ANDROID_P2P */ 11200 } 11201 11202 if (legacy_ps == -1) 11203 return 0; 11204 if (legacy_ps != 0 && legacy_ps != 1) 11205 return -1; /* Not yet supported */ 11206 11207 return nl80211_set_power_save(bss, legacy_ps); 11208} 11209 11210 11211static int nl80211_start_radar_detection(void *priv, 11212 struct hostapd_freq_params *freq) 11213{ 11214 struct i802_bss *bss = priv; 11215 struct wpa_driver_nl80211_data *drv = bss->drv; 11216 struct nl_msg *msg; 11217 int ret; 11218 11219 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)", 11220 freq->freq, freq->ht_enabled, freq->vht_enabled, 11221 freq->bandwidth, freq->center_freq1, freq->center_freq2); 11222 11223 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_RADAR)) { 11224 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support radar " 11225 "detection"); 11226 return -1; 11227 } 11228 11229 msg = nlmsg_alloc(); 11230 if (!msg) 11231 return -1; 11232 11233 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_RADAR_DETECT); 11234 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11235 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); 11236 11237 if (freq->vht_enabled) { 11238 switch (freq->bandwidth) { 11239 case 20: 11240 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 11241 NL80211_CHAN_WIDTH_20); 11242 break; 11243 case 40: 11244 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 11245 NL80211_CHAN_WIDTH_40); 11246 break; 11247 case 80: 11248 if (freq->center_freq2) 11249 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 11250 NL80211_CHAN_WIDTH_80P80); 11251 else 11252 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 11253 NL80211_CHAN_WIDTH_80); 11254 break; 11255 case 160: 11256 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 11257 NL80211_CHAN_WIDTH_160); 11258 break; 11259 default: 11260 return -1; 11261 } 11262 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); 11263 if (freq->center_freq2) 11264 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, 11265 freq->center_freq2); 11266 } else if (freq->ht_enabled) { 11267 switch (freq->sec_channel_offset) { 11268 case -1: 11269 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 11270 NL80211_CHAN_HT40MINUS); 11271 break; 11272 case 1: 11273 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 11274 NL80211_CHAN_HT40PLUS); 11275 break; 11276 default: 11277 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 11278 NL80211_CHAN_HT20); 11279 break; 11280 } 11281 } 11282 11283 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 11284 if (ret == 0) 11285 return 0; 11286 wpa_printf(MSG_DEBUG, "nl80211: Failed to start radar detection: " 11287 "%d (%s)", ret, strerror(-ret)); 11288nla_put_failure: 11289 return -1; 11290} 11291 11292#ifdef CONFIG_TDLS 11293 11294static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code, 11295 u8 dialog_token, u16 status_code, 11296 u32 peer_capab, const u8 *buf, size_t len) 11297{ 11298 struct i802_bss *bss = priv; 11299 struct wpa_driver_nl80211_data *drv = bss->drv; 11300 struct nl_msg *msg; 11301 11302 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 11303 return -EOPNOTSUPP; 11304 11305 if (!dst) 11306 return -EINVAL; 11307 11308 msg = nlmsg_alloc(); 11309 if (!msg) 11310 return -ENOMEM; 11311 11312 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT); 11313 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11314 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); 11315 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code); 11316 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token); 11317 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code); 11318 if (peer_capab) { 11319 /* 11320 * The internal enum tdls_peer_capability definition is 11321 * currently identical with the nl80211 enum 11322 * nl80211_tdls_peer_capability, so no conversion is needed 11323 * here. 11324 */ 11325 NLA_PUT_U32(msg, NL80211_ATTR_TDLS_PEER_CAPABILITY, peer_capab); 11326 } 11327 NLA_PUT(msg, NL80211_ATTR_IE, len, buf); 11328 11329 return send_and_recv_msgs(drv, msg, NULL, NULL); 11330 11331nla_put_failure: 11332 nlmsg_free(msg); 11333 return -ENOBUFS; 11334} 11335 11336 11337static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer) 11338{ 11339 struct i802_bss *bss = priv; 11340 struct wpa_driver_nl80211_data *drv = bss->drv; 11341 struct nl_msg *msg; 11342 enum nl80211_tdls_operation nl80211_oper; 11343 11344 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 11345 return -EOPNOTSUPP; 11346 11347 switch (oper) { 11348 case TDLS_DISCOVERY_REQ: 11349 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ; 11350 break; 11351 case TDLS_SETUP: 11352 nl80211_oper = NL80211_TDLS_SETUP; 11353 break; 11354 case TDLS_TEARDOWN: 11355 nl80211_oper = NL80211_TDLS_TEARDOWN; 11356 break; 11357 case TDLS_ENABLE_LINK: 11358 nl80211_oper = NL80211_TDLS_ENABLE_LINK; 11359 break; 11360 case TDLS_DISABLE_LINK: 11361 nl80211_oper = NL80211_TDLS_DISABLE_LINK; 11362 break; 11363 case TDLS_ENABLE: 11364 return 0; 11365 case TDLS_DISABLE: 11366 return 0; 11367 default: 11368 return -EINVAL; 11369 } 11370 11371 msg = nlmsg_alloc(); 11372 if (!msg) 11373 return -ENOMEM; 11374 11375 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER); 11376 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper); 11377 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11378 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer); 11379 11380 return send_and_recv_msgs(drv, msg, NULL, NULL); 11381 11382nla_put_failure: 11383 nlmsg_free(msg); 11384 return -ENOBUFS; 11385} 11386 11387#endif /* CONFIG TDLS */ 11388 11389 11390#ifdef ANDROID 11391 11392typedef struct android_wifi_priv_cmd { 11393 char *buf; 11394 int used_len; 11395 int total_len; 11396} android_wifi_priv_cmd; 11397 11398static int drv_errors = 0; 11399 11400static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv) 11401{ 11402 drv_errors++; 11403 if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) { 11404 drv_errors = 0; 11405 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED"); 11406 } 11407} 11408 11409 11410static int android_priv_cmd(struct i802_bss *bss, const char *cmd) 11411{ 11412 struct wpa_driver_nl80211_data *drv = bss->drv; 11413 struct ifreq ifr; 11414 android_wifi_priv_cmd priv_cmd; 11415 char buf[MAX_DRV_CMD_SIZE]; 11416 int ret; 11417 11418 os_memset(&ifr, 0, sizeof(ifr)); 11419 os_memset(&priv_cmd, 0, sizeof(priv_cmd)); 11420 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 11421 11422 os_memset(buf, 0, sizeof(buf)); 11423 os_strlcpy(buf, cmd, sizeof(buf)); 11424 11425 priv_cmd.buf = buf; 11426 priv_cmd.used_len = sizeof(buf); 11427 priv_cmd.total_len = sizeof(buf); 11428 ifr.ifr_data = &priv_cmd; 11429 11430 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 11431 if (ret < 0) { 11432 wpa_printf(MSG_ERROR, "%s: failed to issue private commands", 11433 __func__); 11434 wpa_driver_send_hang_msg(drv); 11435 return ret; 11436 } 11437 11438 drv_errors = 0; 11439 return 0; 11440} 11441 11442 11443static int android_pno_start(struct i802_bss *bss, 11444 struct wpa_driver_scan_params *params) 11445{ 11446 struct wpa_driver_nl80211_data *drv = bss->drv; 11447 struct ifreq ifr; 11448 android_wifi_priv_cmd priv_cmd; 11449 int ret = 0, i = 0, bp; 11450 char buf[WEXT_PNO_MAX_COMMAND_SIZE]; 11451 11452 bp = WEXT_PNOSETUP_HEADER_SIZE; 11453 os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp); 11454 buf[bp++] = WEXT_PNO_TLV_PREFIX; 11455 buf[bp++] = WEXT_PNO_TLV_VERSION; 11456 buf[bp++] = WEXT_PNO_TLV_SUBVERSION; 11457 buf[bp++] = WEXT_PNO_TLV_RESERVED; 11458 11459 while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) { 11460 /* Check that there is enough space needed for 1 more SSID, the 11461 * other sections and null termination */ 11462 if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN + 11463 WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf)) 11464 break; 11465 wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan", 11466 params->ssids[i].ssid, 11467 params->ssids[i].ssid_len); 11468 buf[bp++] = WEXT_PNO_SSID_SECTION; 11469 buf[bp++] = params->ssids[i].ssid_len; 11470 os_memcpy(&buf[bp], params->ssids[i].ssid, 11471 params->ssids[i].ssid_len); 11472 bp += params->ssids[i].ssid_len; 11473 i++; 11474 } 11475 11476 buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION; 11477 os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x", 11478 WEXT_PNO_SCAN_INTERVAL); 11479 bp += WEXT_PNO_SCAN_INTERVAL_LENGTH; 11480 11481 buf[bp++] = WEXT_PNO_REPEAT_SECTION; 11482 os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x", 11483 WEXT_PNO_REPEAT); 11484 bp += WEXT_PNO_REPEAT_LENGTH; 11485 11486 buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION; 11487 os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x", 11488 WEXT_PNO_MAX_REPEAT); 11489 bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1; 11490 11491 memset(&ifr, 0, sizeof(ifr)); 11492 memset(&priv_cmd, 0, sizeof(priv_cmd)); 11493 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 11494 11495 priv_cmd.buf = buf; 11496 priv_cmd.used_len = bp; 11497 priv_cmd.total_len = bp; 11498 ifr.ifr_data = &priv_cmd; 11499 11500 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 11501 11502 if (ret < 0) { 11503 wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d", 11504 ret); 11505 wpa_driver_send_hang_msg(drv); 11506 return ret; 11507 } 11508 11509 drv_errors = 0; 11510 11511 return android_priv_cmd(bss, "PNOFORCE 1"); 11512} 11513 11514 11515static int android_pno_stop(struct i802_bss *bss) 11516{ 11517 return android_priv_cmd(bss, "PNOFORCE 0"); 11518} 11519 11520#endif /* ANDROID */ 11521 11522 11523static int driver_nl80211_set_key(const char *ifname, void *priv, 11524 enum wpa_alg alg, const u8 *addr, 11525 int key_idx, int set_tx, 11526 const u8 *seq, size_t seq_len, 11527 const u8 *key, size_t key_len) 11528{ 11529 struct i802_bss *bss = priv; 11530 return wpa_driver_nl80211_set_key(ifname, bss, alg, addr, key_idx, 11531 set_tx, seq, seq_len, key, key_len); 11532} 11533 11534 11535static int driver_nl80211_scan2(void *priv, 11536 struct wpa_driver_scan_params *params) 11537{ 11538 struct i802_bss *bss = priv; 11539 return wpa_driver_nl80211_scan(bss, params); 11540} 11541 11542 11543static int driver_nl80211_deauthenticate(void *priv, const u8 *addr, 11544 int reason_code) 11545{ 11546 struct i802_bss *bss = priv; 11547 return wpa_driver_nl80211_deauthenticate(bss, addr, reason_code); 11548} 11549 11550 11551static int driver_nl80211_authenticate(void *priv, 11552 struct wpa_driver_auth_params *params) 11553{ 11554 struct i802_bss *bss = priv; 11555 return wpa_driver_nl80211_authenticate(bss, params); 11556} 11557 11558 11559static void driver_nl80211_deinit(void *priv) 11560{ 11561 struct i802_bss *bss = priv; 11562 wpa_driver_nl80211_deinit(bss); 11563} 11564 11565 11566static int driver_nl80211_if_remove(void *priv, enum wpa_driver_if_type type, 11567 const char *ifname) 11568{ 11569 struct i802_bss *bss = priv; 11570 return wpa_driver_nl80211_if_remove(bss, type, ifname); 11571} 11572 11573 11574static int driver_nl80211_send_mlme(void *priv, const u8 *data, 11575 size_t data_len, int noack) 11576{ 11577 struct i802_bss *bss = priv; 11578 return wpa_driver_nl80211_send_mlme(bss, data, data_len, noack, 11579 0, 0, 0, 0); 11580} 11581 11582 11583static int driver_nl80211_sta_remove(void *priv, const u8 *addr) 11584{ 11585 struct i802_bss *bss = priv; 11586 return wpa_driver_nl80211_sta_remove(bss, addr); 11587} 11588 11589 11590static int driver_nl80211_set_sta_vlan(void *priv, const u8 *addr, 11591 const char *ifname, int vlan_id) 11592{ 11593 struct i802_bss *bss = priv; 11594 return i802_set_sta_vlan(bss, addr, ifname, vlan_id); 11595} 11596 11597 11598static int driver_nl80211_read_sta_data(void *priv, 11599 struct hostap_sta_driver_data *data, 11600 const u8 *addr) 11601{ 11602 struct i802_bss *bss = priv; 11603 return i802_read_sta_data(bss, data, addr); 11604} 11605 11606 11607static int driver_nl80211_send_action(void *priv, unsigned int freq, 11608 unsigned int wait_time, 11609 const u8 *dst, const u8 *src, 11610 const u8 *bssid, 11611 const u8 *data, size_t data_len, 11612 int no_cck) 11613{ 11614 struct i802_bss *bss = priv; 11615 return wpa_driver_nl80211_send_action(bss, freq, wait_time, dst, src, 11616 bssid, data, data_len, no_cck); 11617} 11618 11619 11620static int driver_nl80211_probe_req_report(void *priv, int report) 11621{ 11622 struct i802_bss *bss = priv; 11623 return wpa_driver_nl80211_probe_req_report(bss, report); 11624} 11625 11626 11627static int wpa_driver_nl80211_update_ft_ies(void *priv, const u8 *md, 11628 const u8 *ies, size_t ies_len) 11629{ 11630 int ret; 11631 struct nl_msg *msg; 11632 struct i802_bss *bss = priv; 11633 struct wpa_driver_nl80211_data *drv = bss->drv; 11634 u16 mdid = WPA_GET_LE16(md); 11635 11636 msg = nlmsg_alloc(); 11637 if (!msg) 11638 return -ENOMEM; 11639 11640 wpa_printf(MSG_DEBUG, "nl80211: Updating FT IEs"); 11641 nl80211_cmd(drv, msg, 0, NL80211_CMD_UPDATE_FT_IES); 11642 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11643 NLA_PUT(msg, NL80211_ATTR_IE, ies_len, ies); 11644 NLA_PUT_U16(msg, NL80211_ATTR_MDID, mdid); 11645 11646 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 11647 if (ret) { 11648 wpa_printf(MSG_DEBUG, "nl80211: update_ft_ies failed " 11649 "err=%d (%s)", ret, strerror(-ret)); 11650 } 11651 11652 return ret; 11653 11654nla_put_failure: 11655 nlmsg_free(msg); 11656 return -ENOBUFS; 11657} 11658 11659 11660const u8 * wpa_driver_nl80211_get_macaddr(void *priv) 11661{ 11662 struct i802_bss *bss = priv; 11663 struct wpa_driver_nl80211_data *drv = bss->drv; 11664 11665 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) 11666 return NULL; 11667 11668 return bss->addr; 11669} 11670 11671 11672static const char * scan_state_str(enum scan_states scan_state) 11673{ 11674 switch (scan_state) { 11675 case NO_SCAN: 11676 return "NO_SCAN"; 11677 case SCAN_REQUESTED: 11678 return "SCAN_REQUESTED"; 11679 case SCAN_STARTED: 11680 return "SCAN_STARTED"; 11681 case SCAN_COMPLETED: 11682 return "SCAN_COMPLETED"; 11683 case SCAN_ABORTED: 11684 return "SCAN_ABORTED"; 11685 case SCHED_SCAN_STARTED: 11686 return "SCHED_SCAN_STARTED"; 11687 case SCHED_SCAN_STOPPED: 11688 return "SCHED_SCAN_STOPPED"; 11689 case SCHED_SCAN_RESULTS: 11690 return "SCHED_SCAN_RESULTS"; 11691 } 11692 11693 return "??"; 11694} 11695 11696 11697static int wpa_driver_nl80211_status(void *priv, char *buf, size_t buflen) 11698{ 11699 struct i802_bss *bss = priv; 11700 struct wpa_driver_nl80211_data *drv = bss->drv; 11701 int res; 11702 char *pos, *end; 11703 11704 pos = buf; 11705 end = buf + buflen; 11706 11707 res = os_snprintf(pos, end - pos, 11708 "ifindex=%d\n" 11709 "ifname=%s\n" 11710 "brname=%s\n" 11711 "addr=" MACSTR "\n" 11712 "freq=%d\n" 11713 "%s%s%s%s%s", 11714 bss->ifindex, 11715 bss->ifname, 11716 bss->brname, 11717 MAC2STR(bss->addr), 11718 bss->freq, 11719 bss->beacon_set ? "beacon_set=1\n" : "", 11720 bss->added_if_into_bridge ? 11721 "added_if_into_bridge=1\n" : "", 11722 bss->added_bridge ? "added_bridge=1\n" : "", 11723 bss->in_deinit ? "in_deinit=1\n" : "", 11724 bss->if_dynamic ? "if_dynamic=1\n" : ""); 11725 if (res < 0 || res >= end - pos) 11726 return pos - buf; 11727 pos += res; 11728 11729 if (bss->wdev_id_set) { 11730 res = os_snprintf(pos, end - pos, "wdev_id=%llu\n", 11731 (unsigned long long) bss->wdev_id); 11732 if (res < 0 || res >= end - pos) 11733 return pos - buf; 11734 pos += res; 11735 } 11736 11737 res = os_snprintf(pos, end - pos, 11738 "phyname=%s\n" 11739 "drv_ifindex=%d\n" 11740 "operstate=%d\n" 11741 "scan_state=%s\n" 11742 "auth_bssid=" MACSTR "\n" 11743 "auth_attempt_bssid=" MACSTR "\n" 11744 "bssid=" MACSTR "\n" 11745 "prev_bssid=" MACSTR "\n" 11746 "associated=%d\n" 11747 "assoc_freq=%u\n" 11748 "monitor_sock=%d\n" 11749 "monitor_ifidx=%d\n" 11750 "monitor_refcount=%d\n" 11751 "last_mgmt_freq=%u\n" 11752 "eapol_tx_sock=%d\n" 11753 "%s%s%s%s%s%s%s%s%s%s%s%s%s%s", 11754 drv->phyname, 11755 drv->ifindex, 11756 drv->operstate, 11757 scan_state_str(drv->scan_state), 11758 MAC2STR(drv->auth_bssid), 11759 MAC2STR(drv->auth_attempt_bssid), 11760 MAC2STR(drv->bssid), 11761 MAC2STR(drv->prev_bssid), 11762 drv->associated, 11763 drv->assoc_freq, 11764 drv->monitor_sock, 11765 drv->monitor_ifidx, 11766 drv->monitor_refcount, 11767 drv->last_mgmt_freq, 11768 drv->eapol_tx_sock, 11769 drv->ignore_if_down_event ? 11770 "ignore_if_down_event=1\n" : "", 11771 drv->scan_complete_events ? 11772 "scan_complete_events=1\n" : "", 11773 drv->disabled_11b_rates ? 11774 "disabled_11b_rates=1\n" : "", 11775 drv->pending_remain_on_chan ? 11776 "pending_remain_on_chan=1\n" : "", 11777 drv->in_interface_list ? "in_interface_list=1\n" : "", 11778 drv->device_ap_sme ? "device_ap_sme=1\n" : "", 11779 drv->poll_command_supported ? 11780 "poll_command_supported=1\n" : "", 11781 drv->data_tx_status ? "data_tx_status=1\n" : "", 11782 drv->scan_for_auth ? "scan_for_auth=1\n" : "", 11783 drv->retry_auth ? "retry_auth=1\n" : "", 11784 drv->use_monitor ? "use_monitor=1\n" : "", 11785 drv->ignore_next_local_disconnect ? 11786 "ignore_next_local_disconnect=1\n" : "", 11787 drv->ignore_next_local_deauth ? 11788 "ignore_next_local_deauth=1\n" : "", 11789 drv->allow_p2p_device ? "allow_p2p_device=1\n" : ""); 11790 if (res < 0 || res >= end - pos) 11791 return pos - buf; 11792 pos += res; 11793 11794 if (drv->has_capability) { 11795 res = os_snprintf(pos, end - pos, 11796 "capa.key_mgmt=0x%x\n" 11797 "capa.enc=0x%x\n" 11798 "capa.auth=0x%x\n" 11799 "capa.flags=0x%x\n" 11800 "capa.max_scan_ssids=%d\n" 11801 "capa.max_sched_scan_ssids=%d\n" 11802 "capa.sched_scan_supported=%d\n" 11803 "capa.max_match_sets=%d\n" 11804 "capa.max_remain_on_chan=%u\n" 11805 "capa.max_stations=%u\n" 11806 "capa.probe_resp_offloads=0x%x\n" 11807 "capa.max_acl_mac_addrs=%u\n" 11808 "capa.num_multichan_concurrent=%u\n", 11809 drv->capa.key_mgmt, 11810 drv->capa.enc, 11811 drv->capa.auth, 11812 drv->capa.flags, 11813 drv->capa.max_scan_ssids, 11814 drv->capa.max_sched_scan_ssids, 11815 drv->capa.sched_scan_supported, 11816 drv->capa.max_match_sets, 11817 drv->capa.max_remain_on_chan, 11818 drv->capa.max_stations, 11819 drv->capa.probe_resp_offloads, 11820 drv->capa.max_acl_mac_addrs, 11821 drv->capa.num_multichan_concurrent); 11822 if (res < 0 || res >= end - pos) 11823 return pos - buf; 11824 pos += res; 11825 } 11826 11827 return pos - buf; 11828} 11829 11830 11831static int set_beacon_data(struct nl_msg *msg, struct beacon_data *settings) 11832{ 11833 if (settings->head) 11834 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, 11835 settings->head_len, settings->head); 11836 11837 if (settings->tail) 11838 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, 11839 settings->tail_len, settings->tail); 11840 11841 if (settings->beacon_ies) 11842 NLA_PUT(msg, NL80211_ATTR_IE, 11843 settings->beacon_ies_len, settings->beacon_ies); 11844 11845 if (settings->proberesp_ies) 11846 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, 11847 settings->proberesp_ies_len, settings->proberesp_ies); 11848 11849 if (settings->assocresp_ies) 11850 NLA_PUT(msg, 11851 NL80211_ATTR_IE_ASSOC_RESP, 11852 settings->assocresp_ies_len, settings->assocresp_ies); 11853 11854 if (settings->probe_resp) 11855 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, 11856 settings->probe_resp_len, settings->probe_resp); 11857 11858 return 0; 11859 11860nla_put_failure: 11861 return -ENOBUFS; 11862} 11863 11864 11865static int nl80211_switch_channel(void *priv, struct csa_settings *settings) 11866{ 11867 struct nl_msg *msg; 11868 struct i802_bss *bss = priv; 11869 struct wpa_driver_nl80211_data *drv = bss->drv; 11870 struct nlattr *beacon_csa; 11871 int ret = -ENOBUFS; 11872 11873 wpa_printf(MSG_DEBUG, "nl80211: Channel switch request (cs_count=%u block_tx=%u freq=%d width=%d cf1=%d cf2=%d)", 11874 settings->cs_count, settings->block_tx, 11875 settings->freq_params.freq, settings->freq_params.bandwidth, 11876 settings->freq_params.center_freq1, 11877 settings->freq_params.center_freq2); 11878 11879 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_AP_CSA)) { 11880 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support channel switch command"); 11881 return -EOPNOTSUPP; 11882 } 11883 11884 if ((drv->nlmode != NL80211_IFTYPE_AP) && 11885 (drv->nlmode != NL80211_IFTYPE_P2P_GO)) 11886 return -EOPNOTSUPP; 11887 11888 /* check settings validity */ 11889 if (!settings->beacon_csa.tail || 11890 ((settings->beacon_csa.tail_len <= 11891 settings->counter_offset_beacon) || 11892 (settings->beacon_csa.tail[settings->counter_offset_beacon] != 11893 settings->cs_count))) 11894 return -EINVAL; 11895 11896 if (settings->beacon_csa.probe_resp && 11897 ((settings->beacon_csa.probe_resp_len <= 11898 settings->counter_offset_presp) || 11899 (settings->beacon_csa.probe_resp[settings->counter_offset_presp] != 11900 settings->cs_count))) 11901 return -EINVAL; 11902 11903 msg = nlmsg_alloc(); 11904 if (!msg) 11905 return -ENOMEM; 11906 11907 nl80211_cmd(drv, msg, 0, NL80211_CMD_CHANNEL_SWITCH); 11908 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11909 NLA_PUT_U32(msg, NL80211_ATTR_CH_SWITCH_COUNT, settings->cs_count); 11910 ret = nl80211_put_freq_params(msg, &settings->freq_params); 11911 if (ret) 11912 goto error; 11913 11914 if (settings->block_tx) 11915 NLA_PUT_FLAG(msg, NL80211_ATTR_CH_SWITCH_BLOCK_TX); 11916 11917 /* beacon_after params */ 11918 ret = set_beacon_data(msg, &settings->beacon_after); 11919 if (ret) 11920 goto error; 11921 11922 /* beacon_csa params */ 11923 beacon_csa = nla_nest_start(msg, NL80211_ATTR_CSA_IES); 11924 if (!beacon_csa) 11925 goto nla_put_failure; 11926 11927 ret = set_beacon_data(msg, &settings->beacon_csa); 11928 if (ret) 11929 goto error; 11930 11931 NLA_PUT_U16(msg, NL80211_ATTR_CSA_C_OFF_BEACON, 11932 settings->counter_offset_beacon); 11933 11934 if (settings->beacon_csa.probe_resp) 11935 NLA_PUT_U16(msg, NL80211_ATTR_CSA_C_OFF_PRESP, 11936 settings->counter_offset_presp); 11937 11938 nla_nest_end(msg, beacon_csa); 11939 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 11940 if (ret) { 11941 wpa_printf(MSG_DEBUG, "nl80211: switch_channel failed err=%d (%s)", 11942 ret, strerror(-ret)); 11943 } 11944 return ret; 11945 11946nla_put_failure: 11947 ret = -ENOBUFS; 11948error: 11949 nlmsg_free(msg); 11950 wpa_printf(MSG_DEBUG, "nl80211: Could not build channel switch request"); 11951 return ret; 11952} 11953 11954 11955#ifdef CONFIG_TESTING_OPTIONS 11956static int cmd_reply_handler(struct nl_msg *msg, void *arg) 11957{ 11958 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 11959 struct wpabuf *buf = arg; 11960 11961 if (!buf) 11962 return NL_SKIP; 11963 11964 if ((size_t) genlmsg_attrlen(gnlh, 0) > wpabuf_tailroom(buf)) { 11965 wpa_printf(MSG_INFO, "nl80211: insufficient buffer space for reply"); 11966 return NL_SKIP; 11967 } 11968 11969 wpabuf_put_data(buf, genlmsg_attrdata(gnlh, 0), 11970 genlmsg_attrlen(gnlh, 0)); 11971 11972 return NL_SKIP; 11973} 11974#endif /* CONFIG_TESTING_OPTIONS */ 11975 11976 11977static int vendor_reply_handler(struct nl_msg *msg, void *arg) 11978{ 11979 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 11980 struct nlattr *nl_vendor_reply, *nl; 11981 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 11982 struct wpabuf *buf = arg; 11983 int rem; 11984 11985 if (!buf) 11986 return NL_SKIP; 11987 11988 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 11989 genlmsg_attrlen(gnlh, 0), NULL); 11990 nl_vendor_reply = tb[NL80211_ATTR_VENDOR_DATA]; 11991 11992 if (!nl_vendor_reply) 11993 return NL_SKIP; 11994 11995 if ((size_t) nla_len(nl_vendor_reply) > wpabuf_tailroom(buf)) { 11996 wpa_printf(MSG_INFO, "nl80211: Vendor command: insufficient buffer space for reply"); 11997 return NL_SKIP; 11998 } 11999 12000 nla_for_each_nested(nl, nl_vendor_reply, rem) { 12001 wpabuf_put_data(buf, nla_data(nl), nla_len(nl)); 12002 } 12003 12004 return NL_SKIP; 12005} 12006 12007 12008static int nl80211_vendor_cmd(void *priv, unsigned int vendor_id, 12009 unsigned int subcmd, const u8 *data, 12010 size_t data_len, struct wpabuf *buf) 12011{ 12012 struct i802_bss *bss = priv; 12013 struct wpa_driver_nl80211_data *drv = bss->drv; 12014 struct nl_msg *msg; 12015 int ret; 12016 12017 msg = nlmsg_alloc(); 12018 if (!msg) 12019 return -ENOMEM; 12020 12021#ifdef CONFIG_TESTING_OPTIONS 12022 if (vendor_id == 0xffffffff) { 12023 nl80211_cmd(drv, msg, 0, subcmd); 12024 if (nlmsg_append(msg, (void *) data, data_len, NLMSG_ALIGNTO) < 12025 0) 12026 goto nla_put_failure; 12027 ret = send_and_recv_msgs(drv, msg, cmd_reply_handler, buf); 12028 if (ret) 12029 wpa_printf(MSG_DEBUG, "nl80211: command failed err=%d", 12030 ret); 12031 return ret; 12032 } 12033#endif /* CONFIG_TESTING_OPTIONS */ 12034 12035 nl80211_cmd(drv, msg, 0, NL80211_CMD_VENDOR); 12036 if (nl80211_set_iface_id(msg, bss) < 0) 12037 goto nla_put_failure; 12038 NLA_PUT_U32(msg, NL80211_ATTR_VENDOR_ID, vendor_id); 12039 NLA_PUT_U32(msg, NL80211_ATTR_VENDOR_SUBCMD, subcmd); 12040 if (data) 12041 NLA_PUT(msg, NL80211_ATTR_VENDOR_DATA, data_len, data); 12042 12043 ret = send_and_recv_msgs(drv, msg, vendor_reply_handler, buf); 12044 if (ret) 12045 wpa_printf(MSG_DEBUG, "nl80211: vendor command failed err=%d", 12046 ret); 12047 return ret; 12048 12049nla_put_failure: 12050 nlmsg_free(msg); 12051 return -ENOBUFS; 12052} 12053 12054 12055static int nl80211_set_qos_map(void *priv, const u8 *qos_map_set, 12056 u8 qos_map_set_len) 12057{ 12058 struct i802_bss *bss = priv; 12059 struct wpa_driver_nl80211_data *drv = bss->drv; 12060 struct nl_msg *msg; 12061 int ret; 12062 12063 msg = nlmsg_alloc(); 12064 if (!msg) 12065 return -ENOMEM; 12066 12067 wpa_hexdump(MSG_DEBUG, "nl80211: Setting QoS Map", 12068 qos_map_set, qos_map_set_len); 12069 12070 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_QOS_MAP); 12071 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 12072 NLA_PUT(msg, NL80211_ATTR_QOS_MAP, qos_map_set_len, qos_map_set); 12073 12074 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 12075 if (ret) 12076 wpa_printf(MSG_DEBUG, "nl80211: Setting QoS Map failed"); 12077 12078 return ret; 12079 12080nla_put_failure: 12081 nlmsg_free(msg); 12082 return -ENOBUFS; 12083} 12084 12085 12086const struct wpa_driver_ops wpa_driver_nl80211_ops = { 12087 .name = "nl80211", 12088 .desc = "Linux nl80211/cfg80211", 12089 .get_bssid = wpa_driver_nl80211_get_bssid, 12090 .get_ssid = wpa_driver_nl80211_get_ssid, 12091 .set_key = driver_nl80211_set_key, 12092 .scan2 = driver_nl80211_scan2, 12093 .sched_scan = wpa_driver_nl80211_sched_scan, 12094 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan, 12095 .get_scan_results2 = wpa_driver_nl80211_get_scan_results, 12096 .deauthenticate = driver_nl80211_deauthenticate, 12097 .authenticate = driver_nl80211_authenticate, 12098 .associate = wpa_driver_nl80211_associate, 12099 .global_init = nl80211_global_init, 12100 .global_deinit = nl80211_global_deinit, 12101 .init2 = wpa_driver_nl80211_init, 12102 .deinit = driver_nl80211_deinit, 12103 .get_capa = wpa_driver_nl80211_get_capa, 12104 .set_operstate = wpa_driver_nl80211_set_operstate, 12105 .set_supp_port = wpa_driver_nl80211_set_supp_port, 12106 .set_country = wpa_driver_nl80211_set_country, 12107 .get_country = wpa_driver_nl80211_get_country, 12108 .set_ap = wpa_driver_nl80211_set_ap, 12109 .set_acl = wpa_driver_nl80211_set_acl, 12110 .if_add = wpa_driver_nl80211_if_add, 12111 .if_remove = driver_nl80211_if_remove, 12112 .send_mlme = driver_nl80211_send_mlme, 12113 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data, 12114 .sta_add = wpa_driver_nl80211_sta_add, 12115 .sta_remove = driver_nl80211_sta_remove, 12116 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol, 12117 .sta_set_flags = wpa_driver_nl80211_sta_set_flags, 12118 .hapd_init = i802_init, 12119 .hapd_deinit = i802_deinit, 12120 .set_wds_sta = i802_set_wds_sta, 12121 .get_seqnum = i802_get_seqnum, 12122 .flush = i802_flush, 12123 .get_inact_sec = i802_get_inact_sec, 12124 .sta_clear_stats = i802_sta_clear_stats, 12125 .set_rts = i802_set_rts, 12126 .set_frag = i802_set_frag, 12127 .set_tx_queue_params = i802_set_tx_queue_params, 12128 .set_sta_vlan = driver_nl80211_set_sta_vlan, 12129 .sta_deauth = i802_sta_deauth, 12130 .sta_disassoc = i802_sta_disassoc, 12131 .read_sta_data = driver_nl80211_read_sta_data, 12132 .set_freq = i802_set_freq, 12133 .send_action = driver_nl80211_send_action, 12134 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait, 12135 .remain_on_channel = wpa_driver_nl80211_remain_on_channel, 12136 .cancel_remain_on_channel = 12137 wpa_driver_nl80211_cancel_remain_on_channel, 12138 .probe_req_report = driver_nl80211_probe_req_report, 12139 .deinit_ap = wpa_driver_nl80211_deinit_ap, 12140 .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli, 12141 .resume = wpa_driver_nl80211_resume, 12142 .send_ft_action = nl80211_send_ft_action, 12143 .signal_monitor = nl80211_signal_monitor, 12144 .signal_poll = nl80211_signal_poll, 12145 .send_frame = nl80211_send_frame, 12146 .shared_freq = wpa_driver_nl80211_shared_freq, 12147 .set_param = nl80211_set_param, 12148 .get_radio_name = nl80211_get_radio_name, 12149 .add_pmkid = nl80211_add_pmkid, 12150 .remove_pmkid = nl80211_remove_pmkid, 12151 .flush_pmkid = nl80211_flush_pmkid, 12152 .set_rekey_info = nl80211_set_rekey_info, 12153 .poll_client = nl80211_poll_client, 12154 .set_p2p_powersave = nl80211_set_p2p_powersave, 12155 .start_dfs_cac = nl80211_start_radar_detection, 12156 .stop_ap = wpa_driver_nl80211_stop_ap, 12157#ifdef CONFIG_TDLS 12158 .send_tdls_mgmt = nl80211_send_tdls_mgmt, 12159 .tdls_oper = nl80211_tdls_oper, 12160#endif /* CONFIG_TDLS */ 12161 .update_ft_ies = wpa_driver_nl80211_update_ft_ies, 12162 .get_mac_addr = wpa_driver_nl80211_get_macaddr, 12163 .get_survey = wpa_driver_nl80211_get_survey, 12164 .status = wpa_driver_nl80211_status, 12165 .switch_channel = nl80211_switch_channel, 12166#ifdef ANDROID_P2P 12167 .set_noa = wpa_driver_set_p2p_noa, 12168 .get_noa = wpa_driver_get_p2p_noa, 12169 .set_ap_wps_ie = wpa_driver_set_ap_wps_p2p_ie, 12170#endif /* ANDROID_P2P */ 12171#ifdef ANDROID 12172 .driver_cmd = wpa_driver_nl80211_driver_cmd, 12173#endif /* ANDROID */ 12174 .vendor_cmd = nl80211_vendor_cmd, 12175 .set_qos_map = nl80211_set_qos_map, 12176}; 12177