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/qca-vendor-attr.h" 33#include "common/ieee802_11_defs.h" 34#include "common/ieee802_11_common.h" 35#include "l2_packet/l2_packet.h" 36#include "netlink.h" 37#include "linux_ioctl.h" 38#include "radiotap.h" 39#include "radiotap_iter.h" 40#include "rfkill.h" 41#include "driver.h" 42 43#ifndef SO_WIFI_STATUS 44# if defined(__sparc__) 45# define SO_WIFI_STATUS 0x0025 46# elif defined(__parisc__) 47# define SO_WIFI_STATUS 0x4022 48# else 49# define SO_WIFI_STATUS 41 50# endif 51 52# define SCM_WIFI_STATUS SO_WIFI_STATUS 53#endif 54 55#ifndef SO_EE_ORIGIN_TXSTATUS 56#define SO_EE_ORIGIN_TXSTATUS 4 57#endif 58 59#ifndef PACKET_TX_TIMESTAMP 60#define PACKET_TX_TIMESTAMP 16 61#endif 62 63#ifdef ANDROID 64#include "android_drv.h" 65#endif /* ANDROID */ 66#ifdef CONFIG_LIBNL20 67/* libnl 2.0 compatibility code */ 68#define nl_handle nl_sock 69#define nl80211_handle_alloc nl_socket_alloc_cb 70#define nl80211_handle_destroy nl_socket_free 71#else 72/* 73 * libnl 1.1 has a bug, it tries to allocate socket numbers densely 74 * but when you free a socket again it will mess up its bitmap and 75 * and use the wrong number the next time it needs a socket ID. 76 * Therefore, we wrap the handle alloc/destroy and add our own pid 77 * accounting. 78 */ 79static uint32_t port_bitmap[32] = { 0 }; 80 81static struct nl_handle *nl80211_handle_alloc(void *cb) 82{ 83 struct nl_handle *handle; 84 uint32_t pid = getpid() & 0x3FFFFF; 85 int i; 86 87 handle = nl_handle_alloc_cb(cb); 88 89 for (i = 0; i < 1024; i++) { 90 if (port_bitmap[i / 32] & (1 << (i % 32))) 91 continue; 92 port_bitmap[i / 32] |= 1 << (i % 32); 93 pid += i << 22; 94 break; 95 } 96 97 nl_socket_set_local_port(handle, pid); 98 99 return handle; 100} 101 102static void nl80211_handle_destroy(struct nl_handle *handle) 103{ 104 uint32_t port = nl_socket_get_local_port(handle); 105 106 port >>= 22; 107 port_bitmap[port / 32] &= ~(1 << (port % 32)); 108 109 nl_handle_destroy(handle); 110} 111#endif /* CONFIG_LIBNL20 */ 112 113 114#ifdef ANDROID 115/* system/core/libnl_2 does not include nl_socket_set_nonblocking() */ 116static int android_nl_socket_set_nonblocking(struct nl_handle *handle) 117{ 118 return fcntl(nl_socket_get_fd(handle), F_SETFL, O_NONBLOCK); 119} 120#undef nl_socket_set_nonblocking 121#define nl_socket_set_nonblocking(h) android_nl_socket_set_nonblocking(h) 122#endif /* ANDROID */ 123 124 125static struct nl_handle * nl_create_handle(struct nl_cb *cb, const char *dbg) 126{ 127 struct nl_handle *handle; 128 129 handle = nl80211_handle_alloc(cb); 130 if (handle == NULL) { 131 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " 132 "callbacks (%s)", dbg); 133 return NULL; 134 } 135 136 if (genl_connect(handle)) { 137 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic " 138 "netlink (%s)", dbg); 139 nl80211_handle_destroy(handle); 140 return NULL; 141 } 142 143 return handle; 144} 145 146 147static void nl_destroy_handles(struct nl_handle **handle) 148{ 149 if (*handle == NULL) 150 return; 151 nl80211_handle_destroy(*handle); 152 *handle = NULL; 153} 154 155 156#if __WORDSIZE == 64 157#define ELOOP_SOCKET_INVALID (intptr_t) 0x8888888888888889ULL 158#else 159#define ELOOP_SOCKET_INVALID (intptr_t) 0x88888889ULL 160#endif 161 162static void nl80211_register_eloop_read(struct nl_handle **handle, 163 eloop_sock_handler handler, 164 void *eloop_data) 165{ 166 nl_socket_set_nonblocking(*handle); 167 eloop_register_read_sock(nl_socket_get_fd(*handle), handler, 168 eloop_data, *handle); 169 *handle = (void *) (((intptr_t) *handle) ^ ELOOP_SOCKET_INVALID); 170} 171 172 173static void nl80211_destroy_eloop_handle(struct nl_handle **handle) 174{ 175 *handle = (void *) (((intptr_t) *handle) ^ ELOOP_SOCKET_INVALID); 176 eloop_unregister_read_sock(nl_socket_get_fd(*handle)); 177 nl_destroy_handles(handle); 178} 179 180 181#ifndef IFF_LOWER_UP 182#define IFF_LOWER_UP 0x10000 /* driver signals L1 up */ 183#endif 184#ifndef IFF_DORMANT 185#define IFF_DORMANT 0x20000 /* driver signals dormant */ 186#endif 187 188#ifndef IF_OPER_DORMANT 189#define IF_OPER_DORMANT 5 190#endif 191#ifndef IF_OPER_UP 192#define IF_OPER_UP 6 193#endif 194 195struct nl80211_global { 196 struct dl_list interfaces; 197 int if_add_ifindex; 198 u64 if_add_wdevid; 199 int if_add_wdevid_set; 200 struct netlink_data *netlink; 201 struct nl_cb *nl_cb; 202 struct nl_handle *nl; 203 int nl80211_id; 204 int ioctl_sock; /* socket for ioctl() use */ 205 206 struct nl_handle *nl_event; 207}; 208 209struct nl80211_wiphy_data { 210 struct dl_list list; 211 struct dl_list bsss; 212 struct dl_list drvs; 213 214 struct nl_handle *nl_beacons; 215 struct nl_cb *nl_cb; 216 217 int wiphy_idx; 218}; 219 220static void nl80211_global_deinit(void *priv); 221 222struct i802_bss { 223 struct wpa_driver_nl80211_data *drv; 224 struct i802_bss *next; 225 int ifindex; 226 u64 wdev_id; 227 char ifname[IFNAMSIZ + 1]; 228 char brname[IFNAMSIZ]; 229 unsigned int beacon_set:1; 230 unsigned int added_if_into_bridge:1; 231 unsigned int added_bridge:1; 232 unsigned int in_deinit:1; 233 unsigned int wdev_id_set:1; 234 unsigned int added_if:1; 235 unsigned int static_ap:1; 236 237 u8 addr[ETH_ALEN]; 238 239 int freq; 240 int bandwidth; 241 int if_dynamic; 242 243 void *ctx; 244 struct nl_handle *nl_preq, *nl_mgmt; 245 struct nl_cb *nl_cb; 246 247 struct nl80211_wiphy_data *wiphy_data; 248 struct dl_list wiphy_list; 249}; 250 251struct wpa_driver_nl80211_data { 252 struct nl80211_global *global; 253 struct dl_list list; 254 struct dl_list wiphy_list; 255 char phyname[32]; 256 void *ctx; 257 int ifindex; 258 int if_removed; 259 int if_disabled; 260 int ignore_if_down_event; 261 struct rfkill_data *rfkill; 262 struct wpa_driver_capa capa; 263 u8 *extended_capa, *extended_capa_mask; 264 unsigned int extended_capa_len; 265 int has_capability; 266 267 int operstate; 268 269 int scan_complete_events; 270 enum scan_states { 271 NO_SCAN, SCAN_REQUESTED, SCAN_STARTED, SCAN_COMPLETED, 272 SCAN_ABORTED, SCHED_SCAN_STARTED, SCHED_SCAN_STOPPED, 273 SCHED_SCAN_RESULTS 274 } scan_state; 275 276 struct nl_cb *nl_cb; 277 278 u8 auth_bssid[ETH_ALEN]; 279 u8 auth_attempt_bssid[ETH_ALEN]; 280 u8 bssid[ETH_ALEN]; 281 u8 prev_bssid[ETH_ALEN]; 282 int associated; 283 u8 ssid[32]; 284 size_t ssid_len; 285 enum nl80211_iftype nlmode; 286 enum nl80211_iftype ap_scan_as_station; 287 unsigned int assoc_freq; 288 289 int monitor_sock; 290 int monitor_ifidx; 291 int monitor_refcount; 292 293 unsigned int disabled_11b_rates:1; 294 unsigned int pending_remain_on_chan:1; 295 unsigned int in_interface_list:1; 296 unsigned int device_ap_sme:1; 297 unsigned int poll_command_supported:1; 298 unsigned int data_tx_status:1; 299 unsigned int scan_for_auth:1; 300 unsigned int retry_auth:1; 301 unsigned int use_monitor:1; 302 unsigned int ignore_next_local_disconnect:1; 303 unsigned int ignore_next_local_deauth:1; 304 unsigned int allow_p2p_device:1; 305 unsigned int hostapd:1; 306 unsigned int start_mode_ap:1; 307 unsigned int start_iface_up:1; 308 unsigned int test_use_roc_tx:1; 309 unsigned int ignore_deauth_event:1; 310 unsigned int dfs_vendor_cmd_avail:1; 311 unsigned int have_low_prio_scan:1; 312 313 u64 remain_on_chan_cookie; 314 u64 send_action_cookie; 315 316 unsigned int last_mgmt_freq; 317 318 struct wpa_driver_scan_filter *filter_ssids; 319 size_t num_filter_ssids; 320 321 struct i802_bss *first_bss; 322 323 int eapol_tx_sock; 324 325 int eapol_sock; /* socket for EAPOL frames */ 326 327 int default_if_indices[16]; 328 int *if_indices; 329 int num_if_indices; 330 331 /* From failed authentication command */ 332 int auth_freq; 333 u8 auth_bssid_[ETH_ALEN]; 334 u8 auth_ssid[32]; 335 size_t auth_ssid_len; 336 int auth_alg; 337 u8 *auth_ie; 338 size_t auth_ie_len; 339 u8 auth_wep_key[4][16]; 340 size_t auth_wep_key_len[4]; 341 int auth_wep_tx_keyidx; 342 int auth_local_state_change; 343 int auth_p2p; 344}; 345 346 347static void wpa_driver_nl80211_deinit(struct i802_bss *bss); 348static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, 349 void *timeout_ctx); 350static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 351 enum nl80211_iftype nlmode); 352static int wpa_driver_nl80211_set_mode_ibss(struct i802_bss *bss, int freq); 353 354static int 355wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv, 356 const u8 *set_addr, int first); 357static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 358 const u8 *addr, int cmd, u16 reason_code, 359 int local_state_change); 360static void nl80211_remove_monitor_interface( 361 struct wpa_driver_nl80211_data *drv); 362static int nl80211_send_frame_cmd(struct i802_bss *bss, 363 unsigned int freq, unsigned int wait, 364 const u8 *buf, size_t buf_len, u64 *cookie, 365 int no_cck, int no_ack, int offchanok); 366static int nl80211_register_frame(struct i802_bss *bss, 367 struct nl_handle *hl_handle, 368 u16 type, const u8 *match, size_t match_len); 369static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, 370 int report); 371#ifdef ANDROID 372static int android_pno_start(struct i802_bss *bss, 373 struct wpa_driver_scan_params *params); 374static int android_pno_stop(struct i802_bss *bss); 375extern int wpa_driver_nl80211_driver_cmd(void *priv, char *cmd, char *buf, 376 size_t buf_len); 377#endif /* ANDROID */ 378#ifdef ANDROID_P2P 379#ifdef ANDROID_P2P_STUB 380int wpa_driver_set_p2p_noa(void *priv, u8 count, int start, int duration) { 381 return 0; 382} 383int wpa_driver_get_p2p_noa(void *priv, u8 *buf, size_t len) { 384 return 0; 385} 386int wpa_driver_set_p2p_ps(void *priv, int legacy_ps, int opp_ps, int ctwindow) { 387 return -1; 388} 389int wpa_driver_set_ap_wps_p2p_ie(void *priv, const struct wpabuf *beacon, 390 const struct wpabuf *proberesp, 391 const struct wpabuf *assocresp) { 392 return 0; 393} 394#else /* ANDROID_P2P_STUB */ 395int wpa_driver_set_p2p_noa(void *priv, u8 count, int start, int duration); 396int wpa_driver_get_p2p_noa(void *priv, u8 *buf, size_t len); 397int wpa_driver_set_p2p_ps(void *priv, int legacy_ps, int opp_ps, int ctwindow); 398int wpa_driver_set_ap_wps_p2p_ie(void *priv, const struct wpabuf *beacon, 399 const struct wpabuf *proberesp, 400 const struct wpabuf *assocresp); 401#endif /* ANDROID_P2P_STUB */ 402#endif /* ANDROID_P2P */ 403 404static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 405static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 406static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 407static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 408 enum wpa_driver_if_type type, 409 const char *ifname); 410 411static int nl80211_set_channel(struct i802_bss *bss, 412 struct hostapd_freq_params *freq, int set_chan); 413static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 414 int ifindex, int disabled); 415 416static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv); 417static int wpa_driver_nl80211_authenticate_retry( 418 struct wpa_driver_nl80211_data *drv); 419 420static int i802_set_freq(void *priv, struct hostapd_freq_params *freq); 421static int i802_set_iface_flags(struct i802_bss *bss, int up); 422 423 424static const char * nl80211_command_to_string(enum nl80211_commands cmd) 425{ 426#define C2S(x) case x: return #x; 427 switch (cmd) { 428 C2S(NL80211_CMD_UNSPEC) 429 C2S(NL80211_CMD_GET_WIPHY) 430 C2S(NL80211_CMD_SET_WIPHY) 431 C2S(NL80211_CMD_NEW_WIPHY) 432 C2S(NL80211_CMD_DEL_WIPHY) 433 C2S(NL80211_CMD_GET_INTERFACE) 434 C2S(NL80211_CMD_SET_INTERFACE) 435 C2S(NL80211_CMD_NEW_INTERFACE) 436 C2S(NL80211_CMD_DEL_INTERFACE) 437 C2S(NL80211_CMD_GET_KEY) 438 C2S(NL80211_CMD_SET_KEY) 439 C2S(NL80211_CMD_NEW_KEY) 440 C2S(NL80211_CMD_DEL_KEY) 441 C2S(NL80211_CMD_GET_BEACON) 442 C2S(NL80211_CMD_SET_BEACON) 443 C2S(NL80211_CMD_START_AP) 444 C2S(NL80211_CMD_STOP_AP) 445 C2S(NL80211_CMD_GET_STATION) 446 C2S(NL80211_CMD_SET_STATION) 447 C2S(NL80211_CMD_NEW_STATION) 448 C2S(NL80211_CMD_DEL_STATION) 449 C2S(NL80211_CMD_GET_MPATH) 450 C2S(NL80211_CMD_SET_MPATH) 451 C2S(NL80211_CMD_NEW_MPATH) 452 C2S(NL80211_CMD_DEL_MPATH) 453 C2S(NL80211_CMD_SET_BSS) 454 C2S(NL80211_CMD_SET_REG) 455 C2S(NL80211_CMD_REQ_SET_REG) 456 C2S(NL80211_CMD_GET_MESH_CONFIG) 457 C2S(NL80211_CMD_SET_MESH_CONFIG) 458 C2S(NL80211_CMD_SET_MGMT_EXTRA_IE) 459 C2S(NL80211_CMD_GET_REG) 460 C2S(NL80211_CMD_GET_SCAN) 461 C2S(NL80211_CMD_TRIGGER_SCAN) 462 C2S(NL80211_CMD_NEW_SCAN_RESULTS) 463 C2S(NL80211_CMD_SCAN_ABORTED) 464 C2S(NL80211_CMD_REG_CHANGE) 465 C2S(NL80211_CMD_AUTHENTICATE) 466 C2S(NL80211_CMD_ASSOCIATE) 467 C2S(NL80211_CMD_DEAUTHENTICATE) 468 C2S(NL80211_CMD_DISASSOCIATE) 469 C2S(NL80211_CMD_MICHAEL_MIC_FAILURE) 470 C2S(NL80211_CMD_REG_BEACON_HINT) 471 C2S(NL80211_CMD_JOIN_IBSS) 472 C2S(NL80211_CMD_LEAVE_IBSS) 473 C2S(NL80211_CMD_TESTMODE) 474 C2S(NL80211_CMD_CONNECT) 475 C2S(NL80211_CMD_ROAM) 476 C2S(NL80211_CMD_DISCONNECT) 477 C2S(NL80211_CMD_SET_WIPHY_NETNS) 478 C2S(NL80211_CMD_GET_SURVEY) 479 C2S(NL80211_CMD_NEW_SURVEY_RESULTS) 480 C2S(NL80211_CMD_SET_PMKSA) 481 C2S(NL80211_CMD_DEL_PMKSA) 482 C2S(NL80211_CMD_FLUSH_PMKSA) 483 C2S(NL80211_CMD_REMAIN_ON_CHANNEL) 484 C2S(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL) 485 C2S(NL80211_CMD_SET_TX_BITRATE_MASK) 486 C2S(NL80211_CMD_REGISTER_FRAME) 487 C2S(NL80211_CMD_FRAME) 488 C2S(NL80211_CMD_FRAME_TX_STATUS) 489 C2S(NL80211_CMD_SET_POWER_SAVE) 490 C2S(NL80211_CMD_GET_POWER_SAVE) 491 C2S(NL80211_CMD_SET_CQM) 492 C2S(NL80211_CMD_NOTIFY_CQM) 493 C2S(NL80211_CMD_SET_CHANNEL) 494 C2S(NL80211_CMD_SET_WDS_PEER) 495 C2S(NL80211_CMD_FRAME_WAIT_CANCEL) 496 C2S(NL80211_CMD_JOIN_MESH) 497 C2S(NL80211_CMD_LEAVE_MESH) 498 C2S(NL80211_CMD_UNPROT_DEAUTHENTICATE) 499 C2S(NL80211_CMD_UNPROT_DISASSOCIATE) 500 C2S(NL80211_CMD_NEW_PEER_CANDIDATE) 501 C2S(NL80211_CMD_GET_WOWLAN) 502 C2S(NL80211_CMD_SET_WOWLAN) 503 C2S(NL80211_CMD_START_SCHED_SCAN) 504 C2S(NL80211_CMD_STOP_SCHED_SCAN) 505 C2S(NL80211_CMD_SCHED_SCAN_RESULTS) 506 C2S(NL80211_CMD_SCHED_SCAN_STOPPED) 507 C2S(NL80211_CMD_SET_REKEY_OFFLOAD) 508 C2S(NL80211_CMD_PMKSA_CANDIDATE) 509 C2S(NL80211_CMD_TDLS_OPER) 510 C2S(NL80211_CMD_TDLS_MGMT) 511 C2S(NL80211_CMD_UNEXPECTED_FRAME) 512 C2S(NL80211_CMD_PROBE_CLIENT) 513 C2S(NL80211_CMD_REGISTER_BEACONS) 514 C2S(NL80211_CMD_UNEXPECTED_4ADDR_FRAME) 515 C2S(NL80211_CMD_SET_NOACK_MAP) 516 C2S(NL80211_CMD_CH_SWITCH_NOTIFY) 517 C2S(NL80211_CMD_START_P2P_DEVICE) 518 C2S(NL80211_CMD_STOP_P2P_DEVICE) 519 C2S(NL80211_CMD_CONN_FAILED) 520 C2S(NL80211_CMD_SET_MCAST_RATE) 521 C2S(NL80211_CMD_SET_MAC_ACL) 522 C2S(NL80211_CMD_RADAR_DETECT) 523 C2S(NL80211_CMD_GET_PROTOCOL_FEATURES) 524 C2S(NL80211_CMD_UPDATE_FT_IES) 525 C2S(NL80211_CMD_FT_EVENT) 526 C2S(NL80211_CMD_CRIT_PROTOCOL_START) 527 C2S(NL80211_CMD_CRIT_PROTOCOL_STOP) 528 C2S(NL80211_CMD_GET_COALESCE) 529 C2S(NL80211_CMD_SET_COALESCE) 530 C2S(NL80211_CMD_CHANNEL_SWITCH) 531 C2S(NL80211_CMD_VENDOR) 532 C2S(NL80211_CMD_SET_QOS_MAP) 533 default: 534 return "NL80211_CMD_UNKNOWN"; 535 } 536#undef C2S 537} 538 539 540/* Converts nl80211_chan_width to a common format */ 541static enum chan_width convert2width(int width) 542{ 543 switch (width) { 544 case NL80211_CHAN_WIDTH_20_NOHT: 545 return CHAN_WIDTH_20_NOHT; 546 case NL80211_CHAN_WIDTH_20: 547 return CHAN_WIDTH_20; 548 case NL80211_CHAN_WIDTH_40: 549 return CHAN_WIDTH_40; 550 case NL80211_CHAN_WIDTH_80: 551 return CHAN_WIDTH_80; 552 case NL80211_CHAN_WIDTH_80P80: 553 return CHAN_WIDTH_80P80; 554 case NL80211_CHAN_WIDTH_160: 555 return CHAN_WIDTH_160; 556 } 557 return CHAN_WIDTH_UNKNOWN; 558} 559 560 561static int is_ap_interface(enum nl80211_iftype nlmode) 562{ 563 return nlmode == NL80211_IFTYPE_AP || 564 nlmode == NL80211_IFTYPE_P2P_GO; 565} 566 567 568static int is_sta_interface(enum nl80211_iftype nlmode) 569{ 570 return nlmode == NL80211_IFTYPE_STATION || 571 nlmode == NL80211_IFTYPE_P2P_CLIENT; 572} 573 574 575static int is_p2p_net_interface(enum nl80211_iftype nlmode) 576{ 577 return nlmode == NL80211_IFTYPE_P2P_CLIENT || 578 nlmode == NL80211_IFTYPE_P2P_GO; 579} 580 581 582static void nl80211_mark_disconnected(struct wpa_driver_nl80211_data *drv) 583{ 584 if (drv->associated) 585 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); 586 drv->associated = 0; 587 os_memset(drv->bssid, 0, ETH_ALEN); 588} 589 590 591struct nl80211_bss_info_arg { 592 struct wpa_driver_nl80211_data *drv; 593 struct wpa_scan_results *res; 594 unsigned int assoc_freq; 595 unsigned int ibss_freq; 596 u8 assoc_bssid[ETH_ALEN]; 597}; 598 599static int bss_info_handler(struct nl_msg *msg, void *arg); 600 601 602/* nl80211 code */ 603static int ack_handler(struct nl_msg *msg, void *arg) 604{ 605 int *err = arg; 606 *err = 0; 607 return NL_STOP; 608} 609 610static int finish_handler(struct nl_msg *msg, void *arg) 611{ 612 int *ret = arg; 613 *ret = 0; 614 return NL_SKIP; 615} 616 617static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err, 618 void *arg) 619{ 620 int *ret = arg; 621 *ret = err->error; 622 return NL_SKIP; 623} 624 625 626static int no_seq_check(struct nl_msg *msg, void *arg) 627{ 628 return NL_OK; 629} 630 631 632static int send_and_recv(struct nl80211_global *global, 633 struct nl_handle *nl_handle, struct nl_msg *msg, 634 int (*valid_handler)(struct nl_msg *, void *), 635 void *valid_data) 636{ 637 struct nl_cb *cb; 638 int err = -ENOMEM; 639 640 cb = nl_cb_clone(global->nl_cb); 641 if (!cb) 642 goto out; 643 644 err = nl_send_auto_complete(nl_handle, msg); 645 if (err < 0) 646 goto out; 647 648 err = 1; 649 650 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err); 651 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err); 652 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err); 653 654 if (valid_handler) 655 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, 656 valid_handler, valid_data); 657 658 while (err > 0) { 659 int res = nl_recvmsgs(nl_handle, cb); 660 if (res < 0) { 661 wpa_printf(MSG_INFO, 662 "nl80211: %s->nl_recvmsgs failed: %d", 663 __func__, res); 664 } 665 } 666 out: 667 nl_cb_put(cb); 668 nlmsg_free(msg); 669 return err; 670} 671 672 673static int send_and_recv_msgs_global(struct nl80211_global *global, 674 struct nl_msg *msg, 675 int (*valid_handler)(struct nl_msg *, void *), 676 void *valid_data) 677{ 678 return send_and_recv(global, global->nl, msg, valid_handler, 679 valid_data); 680} 681 682 683static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv, 684 struct nl_msg *msg, 685 int (*valid_handler)(struct nl_msg *, void *), 686 void *valid_data) 687{ 688 return send_and_recv(drv->global, drv->global->nl, msg, 689 valid_handler, valid_data); 690} 691 692 693struct family_data { 694 const char *group; 695 int id; 696}; 697 698 699static int nl80211_set_iface_id(struct nl_msg *msg, struct i802_bss *bss) 700{ 701 if (bss->wdev_id_set) 702 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 703 else 704 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 705 return 0; 706 707nla_put_failure: 708 return -1; 709} 710 711 712static int family_handler(struct nl_msg *msg, void *arg) 713{ 714 struct family_data *res = arg; 715 struct nlattr *tb[CTRL_ATTR_MAX + 1]; 716 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 717 struct nlattr *mcgrp; 718 int i; 719 720 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 721 genlmsg_attrlen(gnlh, 0), NULL); 722 if (!tb[CTRL_ATTR_MCAST_GROUPS]) 723 return NL_SKIP; 724 725 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) { 726 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1]; 727 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp), 728 nla_len(mcgrp), NULL); 729 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] || 730 !tb2[CTRL_ATTR_MCAST_GRP_ID] || 731 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]), 732 res->group, 733 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0) 734 continue; 735 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]); 736 break; 737 }; 738 739 return NL_SKIP; 740} 741 742 743static int nl_get_multicast_id(struct nl80211_global *global, 744 const char *family, const char *group) 745{ 746 struct nl_msg *msg; 747 int ret = -1; 748 struct family_data res = { group, -ENOENT }; 749 750 msg = nlmsg_alloc(); 751 if (!msg) 752 return -ENOMEM; 753 genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"), 754 0, 0, CTRL_CMD_GETFAMILY, 0); 755 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family); 756 757 ret = send_and_recv_msgs_global(global, msg, family_handler, &res); 758 msg = NULL; 759 if (ret == 0) 760 ret = res.id; 761 762nla_put_failure: 763 nlmsg_free(msg); 764 return ret; 765} 766 767 768static void * nl80211_cmd(struct wpa_driver_nl80211_data *drv, 769 struct nl_msg *msg, int flags, uint8_t cmd) 770{ 771 return genlmsg_put(msg, 0, 0, drv->global->nl80211_id, 772 0, flags, cmd, 0); 773} 774 775 776struct wiphy_idx_data { 777 int wiphy_idx; 778 enum nl80211_iftype nlmode; 779 u8 *macaddr; 780}; 781 782 783static int netdev_info_handler(struct nl_msg *msg, void *arg) 784{ 785 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 786 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 787 struct wiphy_idx_data *info = arg; 788 789 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 790 genlmsg_attrlen(gnlh, 0), NULL); 791 792 if (tb[NL80211_ATTR_WIPHY]) 793 info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]); 794 795 if (tb[NL80211_ATTR_IFTYPE]) 796 info->nlmode = nla_get_u32(tb[NL80211_ATTR_IFTYPE]); 797 798 if (tb[NL80211_ATTR_MAC] && info->macaddr) 799 os_memcpy(info->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 800 ETH_ALEN); 801 802 return NL_SKIP; 803} 804 805 806static int nl80211_get_wiphy_index(struct i802_bss *bss) 807{ 808 struct nl_msg *msg; 809 struct wiphy_idx_data data = { 810 .wiphy_idx = -1, 811 .macaddr = NULL, 812 }; 813 814 msg = nlmsg_alloc(); 815 if (!msg) 816 return NL80211_IFTYPE_UNSPECIFIED; 817 818 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 819 820 if (nl80211_set_iface_id(msg, bss) < 0) 821 goto nla_put_failure; 822 823 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) 824 return data.wiphy_idx; 825 msg = NULL; 826nla_put_failure: 827 nlmsg_free(msg); 828 return -1; 829} 830 831 832static enum nl80211_iftype nl80211_get_ifmode(struct i802_bss *bss) 833{ 834 struct nl_msg *msg; 835 struct wiphy_idx_data data = { 836 .nlmode = NL80211_IFTYPE_UNSPECIFIED, 837 .macaddr = NULL, 838 }; 839 840 msg = nlmsg_alloc(); 841 if (!msg) 842 return -1; 843 844 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 845 846 if (nl80211_set_iface_id(msg, bss) < 0) 847 goto nla_put_failure; 848 849 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) 850 return data.nlmode; 851 msg = NULL; 852nla_put_failure: 853 nlmsg_free(msg); 854 return NL80211_IFTYPE_UNSPECIFIED; 855} 856 857 858static int nl80211_get_macaddr(struct i802_bss *bss) 859{ 860 struct nl_msg *msg; 861 struct wiphy_idx_data data = { 862 .macaddr = bss->addr, 863 }; 864 865 msg = nlmsg_alloc(); 866 if (!msg) 867 return NL80211_IFTYPE_UNSPECIFIED; 868 869 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 870 if (nl80211_set_iface_id(msg, bss) < 0) 871 goto nla_put_failure; 872 873 return send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data); 874 875nla_put_failure: 876 nlmsg_free(msg); 877 return NL80211_IFTYPE_UNSPECIFIED; 878} 879 880 881static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv, 882 struct nl80211_wiphy_data *w) 883{ 884 struct nl_msg *msg; 885 int ret = -1; 886 887 msg = nlmsg_alloc(); 888 if (!msg) 889 return -1; 890 891 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS); 892 893 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx); 894 895 ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL); 896 msg = NULL; 897 if (ret) { 898 wpa_printf(MSG_DEBUG, "nl80211: Register beacons command " 899 "failed: ret=%d (%s)", 900 ret, strerror(-ret)); 901 goto nla_put_failure; 902 } 903 ret = 0; 904nla_put_failure: 905 nlmsg_free(msg); 906 return ret; 907} 908 909 910static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle) 911{ 912 struct nl80211_wiphy_data *w = eloop_ctx; 913 int res; 914 915 wpa_printf(MSG_EXCESSIVE, "nl80211: Beacon event message available"); 916 917 res = nl_recvmsgs(handle, w->nl_cb); 918 if (res < 0) { 919 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d", 920 __func__, res); 921 } 922} 923 924 925static int process_beacon_event(struct nl_msg *msg, void *arg) 926{ 927 struct nl80211_wiphy_data *w = arg; 928 struct wpa_driver_nl80211_data *drv; 929 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 930 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 931 union wpa_event_data event; 932 933 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 934 genlmsg_attrlen(gnlh, 0), NULL); 935 936 if (gnlh->cmd != NL80211_CMD_FRAME) { 937 wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)", 938 gnlh->cmd); 939 return NL_SKIP; 940 } 941 942 if (!tb[NL80211_ATTR_FRAME]) 943 return NL_SKIP; 944 945 dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data, 946 wiphy_list) { 947 os_memset(&event, 0, sizeof(event)); 948 event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]); 949 event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]); 950 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 951 } 952 953 return NL_SKIP; 954} 955 956 957static struct nl80211_wiphy_data * 958nl80211_get_wiphy_data_ap(struct i802_bss *bss) 959{ 960 static DEFINE_DL_LIST(nl80211_wiphys); 961 struct nl80211_wiphy_data *w; 962 int wiphy_idx, found = 0; 963 struct i802_bss *tmp_bss; 964 965 if (bss->wiphy_data != NULL) 966 return bss->wiphy_data; 967 968 wiphy_idx = nl80211_get_wiphy_index(bss); 969 970 dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) { 971 if (w->wiphy_idx == wiphy_idx) 972 goto add; 973 } 974 975 /* alloc new one */ 976 w = os_zalloc(sizeof(*w)); 977 if (w == NULL) 978 return NULL; 979 w->wiphy_idx = wiphy_idx; 980 dl_list_init(&w->bsss); 981 dl_list_init(&w->drvs); 982 983 w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 984 if (!w->nl_cb) { 985 os_free(w); 986 return NULL; 987 } 988 nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL); 989 nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_beacon_event, 990 w); 991 992 w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb, 993 "wiphy beacons"); 994 if (w->nl_beacons == NULL) { 995 os_free(w); 996 return NULL; 997 } 998 999 if (nl80211_register_beacons(bss->drv, w)) { 1000 nl_destroy_handles(&w->nl_beacons); 1001 os_free(w); 1002 return NULL; 1003 } 1004 1005 nl80211_register_eloop_read(&w->nl_beacons, nl80211_recv_beacons, w); 1006 1007 dl_list_add(&nl80211_wiphys, &w->list); 1008 1009add: 1010 /* drv entry for this bss already there? */ 1011 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { 1012 if (tmp_bss->drv == bss->drv) { 1013 found = 1; 1014 break; 1015 } 1016 } 1017 /* if not add it */ 1018 if (!found) 1019 dl_list_add(&w->drvs, &bss->drv->wiphy_list); 1020 1021 dl_list_add(&w->bsss, &bss->wiphy_list); 1022 bss->wiphy_data = w; 1023 return w; 1024} 1025 1026 1027static void nl80211_put_wiphy_data_ap(struct i802_bss *bss) 1028{ 1029 struct nl80211_wiphy_data *w = bss->wiphy_data; 1030 struct i802_bss *tmp_bss; 1031 int found = 0; 1032 1033 if (w == NULL) 1034 return; 1035 bss->wiphy_data = NULL; 1036 dl_list_del(&bss->wiphy_list); 1037 1038 /* still any for this drv present? */ 1039 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { 1040 if (tmp_bss->drv == bss->drv) { 1041 found = 1; 1042 break; 1043 } 1044 } 1045 /* if not remove it */ 1046 if (!found) 1047 dl_list_del(&bss->drv->wiphy_list); 1048 1049 if (!dl_list_empty(&w->bsss)) 1050 return; 1051 1052 nl80211_destroy_eloop_handle(&w->nl_beacons); 1053 1054 nl_cb_put(w->nl_cb); 1055 dl_list_del(&w->list); 1056 os_free(w); 1057} 1058 1059 1060static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid) 1061{ 1062 struct i802_bss *bss = priv; 1063 struct wpa_driver_nl80211_data *drv = bss->drv; 1064 if (!drv->associated) 1065 return -1; 1066 os_memcpy(bssid, drv->bssid, ETH_ALEN); 1067 return 0; 1068} 1069 1070 1071static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid) 1072{ 1073 struct i802_bss *bss = priv; 1074 struct wpa_driver_nl80211_data *drv = bss->drv; 1075 if (!drv->associated) 1076 return -1; 1077 os_memcpy(ssid, drv->ssid, drv->ssid_len); 1078 return drv->ssid_len; 1079} 1080 1081 1082static void wpa_driver_nl80211_event_newlink( 1083 struct wpa_driver_nl80211_data *drv, char *ifname) 1084{ 1085 union wpa_event_data event; 1086 1087 if (os_strcmp(drv->first_bss->ifname, ifname) == 0) { 1088 if (if_nametoindex(drv->first_bss->ifname) == 0) { 1089 wpa_printf(MSG_DEBUG, "nl80211: Interface %s does not exist - ignore RTM_NEWLINK", 1090 drv->first_bss->ifname); 1091 return; 1092 } 1093 if (!drv->if_removed) 1094 return; 1095 wpa_printf(MSG_DEBUG, "nl80211: Mark if_removed=0 for %s based on RTM_NEWLINK event", 1096 drv->first_bss->ifname); 1097 drv->if_removed = 0; 1098 } 1099 1100 os_memset(&event, 0, sizeof(event)); 1101 os_strlcpy(event.interface_status.ifname, ifname, 1102 sizeof(event.interface_status.ifname)); 1103 event.interface_status.ievent = EVENT_INTERFACE_ADDED; 1104 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); 1105} 1106 1107 1108static void wpa_driver_nl80211_event_dellink( 1109 struct wpa_driver_nl80211_data *drv, char *ifname) 1110{ 1111 union wpa_event_data event; 1112 1113 if (os_strcmp(drv->first_bss->ifname, ifname) == 0) { 1114 if (drv->if_removed) { 1115 wpa_printf(MSG_DEBUG, "nl80211: if_removed already set - ignore RTM_DELLINK event for %s", 1116 ifname); 1117 return; 1118 } 1119 wpa_printf(MSG_DEBUG, "RTM_DELLINK: Interface '%s' removed - mark if_removed=1", 1120 ifname); 1121 drv->if_removed = 1; 1122 } else { 1123 wpa_printf(MSG_DEBUG, "RTM_DELLINK: Interface '%s' removed", 1124 ifname); 1125 } 1126 1127 os_memset(&event, 0, sizeof(event)); 1128 os_strlcpy(event.interface_status.ifname, ifname, 1129 sizeof(event.interface_status.ifname)); 1130 event.interface_status.ievent = EVENT_INTERFACE_REMOVED; 1131 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); 1132} 1133 1134 1135static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv, 1136 u8 *buf, size_t len) 1137{ 1138 int attrlen, rta_len; 1139 struct rtattr *attr; 1140 1141 attrlen = len; 1142 attr = (struct rtattr *) buf; 1143 1144 rta_len = RTA_ALIGN(sizeof(struct rtattr)); 1145 while (RTA_OK(attr, attrlen)) { 1146 if (attr->rta_type == IFLA_IFNAME) { 1147 if (os_strcmp(((char *) attr) + rta_len, 1148 drv->first_bss->ifname) == 0) 1149 return 1; 1150 else 1151 break; 1152 } 1153 attr = RTA_NEXT(attr, attrlen); 1154 } 1155 1156 return 0; 1157} 1158 1159 1160static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv, 1161 int ifindex, u8 *buf, size_t len) 1162{ 1163 if (drv->ifindex == ifindex) 1164 return 1; 1165 1166 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) { 1167 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed " 1168 "interface"); 1169 wpa_driver_nl80211_finish_drv_init(drv, NULL, 0); 1170 return 1; 1171 } 1172 1173 return 0; 1174} 1175 1176 1177static struct wpa_driver_nl80211_data * 1178nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len) 1179{ 1180 struct wpa_driver_nl80211_data *drv; 1181 dl_list_for_each(drv, &global->interfaces, 1182 struct wpa_driver_nl80211_data, list) { 1183 if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) || 1184 have_ifidx(drv, idx)) 1185 return drv; 1186 } 1187 return NULL; 1188} 1189 1190 1191static void wpa_driver_nl80211_event_rtm_newlink(void *ctx, 1192 struct ifinfomsg *ifi, 1193 u8 *buf, size_t len) 1194{ 1195 struct nl80211_global *global = ctx; 1196 struct wpa_driver_nl80211_data *drv; 1197 int attrlen; 1198 struct rtattr *attr; 1199 u32 brid = 0; 1200 char namebuf[IFNAMSIZ]; 1201 char ifname[IFNAMSIZ + 1]; 1202 char extra[100], *pos, *end; 1203 1204 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); 1205 if (!drv) { 1206 wpa_printf(MSG_DEBUG, "nl80211: Ignore RTM_NEWLINK event for foreign ifindex %d", 1207 ifi->ifi_index); 1208 return; 1209 } 1210 1211 extra[0] = '\0'; 1212 pos = extra; 1213 end = pos + sizeof(extra); 1214 ifname[0] = '\0'; 1215 1216 attrlen = len; 1217 attr = (struct rtattr *) buf; 1218 while (RTA_OK(attr, attrlen)) { 1219 switch (attr->rta_type) { 1220 case IFLA_IFNAME: 1221 if (RTA_PAYLOAD(attr) >= IFNAMSIZ) 1222 break; 1223 os_memcpy(ifname, RTA_DATA(attr), RTA_PAYLOAD(attr)); 1224 ifname[RTA_PAYLOAD(attr)] = '\0'; 1225 break; 1226 case IFLA_MASTER: 1227 brid = nla_get_u32((struct nlattr *) attr); 1228 pos += os_snprintf(pos, end - pos, " master=%u", brid); 1229 break; 1230 case IFLA_WIRELESS: 1231 pos += os_snprintf(pos, end - pos, " wext"); 1232 break; 1233 case IFLA_OPERSTATE: 1234 pos += os_snprintf(pos, end - pos, " operstate=%u", 1235 nla_get_u32((struct nlattr *) attr)); 1236 break; 1237 case IFLA_LINKMODE: 1238 pos += os_snprintf(pos, end - pos, " linkmode=%u", 1239 nla_get_u32((struct nlattr *) attr)); 1240 break; 1241 } 1242 attr = RTA_NEXT(attr, attrlen); 1243 } 1244 extra[sizeof(extra) - 1] = '\0'; 1245 1246 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: ifi_index=%d ifname=%s%s ifi_flags=0x%x (%s%s%s%s)", 1247 ifi->ifi_index, ifname, extra, ifi->ifi_flags, 1248 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "", 1249 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "", 1250 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "", 1251 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : ""); 1252 1253 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) { 1254 if (if_indextoname(ifi->ifi_index, namebuf) && 1255 linux_iface_up(drv->global->ioctl_sock, 1256 drv->first_bss->ifname) > 0) { 1257 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " 1258 "event since interface %s is up", namebuf); 1259 return; 1260 } 1261 wpa_printf(MSG_DEBUG, "nl80211: Interface down"); 1262 if (drv->ignore_if_down_event) { 1263 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " 1264 "event generated by mode change"); 1265 drv->ignore_if_down_event = 0; 1266 } else { 1267 drv->if_disabled = 1; 1268 wpa_supplicant_event(drv->ctx, 1269 EVENT_INTERFACE_DISABLED, NULL); 1270 1271 /* 1272 * Try to get drv again, since it may be removed as 1273 * part of the EVENT_INTERFACE_DISABLED handling for 1274 * dynamic interfaces 1275 */ 1276 drv = nl80211_find_drv(global, ifi->ifi_index, 1277 buf, len); 1278 if (!drv) 1279 return; 1280 } 1281 } 1282 1283 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) { 1284 if (if_indextoname(ifi->ifi_index, namebuf) && 1285 linux_iface_up(drv->global->ioctl_sock, 1286 drv->first_bss->ifname) == 0) { 1287 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1288 "event since interface %s is down", 1289 namebuf); 1290 } else if (if_nametoindex(drv->first_bss->ifname) == 0) { 1291 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1292 "event since interface %s does not exist", 1293 drv->first_bss->ifname); 1294 } else if (drv->if_removed) { 1295 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1296 "event since interface %s is marked " 1297 "removed", drv->first_bss->ifname); 1298 } else { 1299 wpa_printf(MSG_DEBUG, "nl80211: Interface up"); 1300 drv->if_disabled = 0; 1301 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED, 1302 NULL); 1303 } 1304 } 1305 1306 /* 1307 * Some drivers send the association event before the operup event--in 1308 * this case, lifting operstate in wpa_driver_nl80211_set_operstate() 1309 * fails. This will hit us when wpa_supplicant does not need to do 1310 * IEEE 802.1X authentication 1311 */ 1312 if (drv->operstate == 1 && 1313 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP && 1314 !(ifi->ifi_flags & IFF_RUNNING)) { 1315 wpa_printf(MSG_DEBUG, "nl80211: Set IF_OPER_UP again based on ifi_flags and expected operstate"); 1316 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 1317 -1, IF_OPER_UP); 1318 } 1319 1320 if (ifname[0]) 1321 wpa_driver_nl80211_event_newlink(drv, ifname); 1322 1323 if (ifi->ifi_family == AF_BRIDGE && brid) { 1324 /* device has been added to bridge */ 1325 if_indextoname(brid, namebuf); 1326 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s", 1327 brid, namebuf); 1328 add_ifidx(drv, brid); 1329 } 1330} 1331 1332 1333static void wpa_driver_nl80211_event_rtm_dellink(void *ctx, 1334 struct ifinfomsg *ifi, 1335 u8 *buf, size_t len) 1336{ 1337 struct nl80211_global *global = ctx; 1338 struct wpa_driver_nl80211_data *drv; 1339 int attrlen; 1340 struct rtattr *attr; 1341 u32 brid = 0; 1342 char ifname[IFNAMSIZ + 1]; 1343 1344 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); 1345 if (!drv) { 1346 wpa_printf(MSG_DEBUG, "nl80211: Ignore RTM_DELLINK event for foreign ifindex %d", 1347 ifi->ifi_index); 1348 return; 1349 } 1350 1351 ifname[0] = '\0'; 1352 1353 attrlen = len; 1354 attr = (struct rtattr *) buf; 1355 while (RTA_OK(attr, attrlen)) { 1356 switch (attr->rta_type) { 1357 case IFLA_IFNAME: 1358 if (RTA_PAYLOAD(attr) >= IFNAMSIZ) 1359 break; 1360 os_memcpy(ifname, RTA_DATA(attr), RTA_PAYLOAD(attr)); 1361 ifname[RTA_PAYLOAD(attr)] = '\0'; 1362 break; 1363 case IFLA_MASTER: 1364 brid = nla_get_u32((struct nlattr *) attr); 1365 break; 1366 } 1367 attr = RTA_NEXT(attr, attrlen); 1368 } 1369 1370 if (ifname[0]) 1371 wpa_driver_nl80211_event_dellink(drv, ifname); 1372 1373 if (ifi->ifi_family == AF_BRIDGE && brid) { 1374 /* device has been removed from bridge */ 1375 char namebuf[IFNAMSIZ]; 1376 if_indextoname(brid, namebuf); 1377 wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge " 1378 "%s", brid, namebuf); 1379 del_ifidx(drv, brid); 1380 } 1381} 1382 1383 1384static void mlme_event_auth(struct wpa_driver_nl80211_data *drv, 1385 const u8 *frame, size_t len) 1386{ 1387 const struct ieee80211_mgmt *mgmt; 1388 union wpa_event_data event; 1389 1390 wpa_printf(MSG_DEBUG, "nl80211: Authenticate event"); 1391 mgmt = (const struct ieee80211_mgmt *) frame; 1392 if (len < 24 + sizeof(mgmt->u.auth)) { 1393 wpa_printf(MSG_DEBUG, "nl80211: Too short association event " 1394 "frame"); 1395 return; 1396 } 1397 1398 os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN); 1399 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 1400 os_memset(&event, 0, sizeof(event)); 1401 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN); 1402 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg); 1403 event.auth.auth_transaction = 1404 le_to_host16(mgmt->u.auth.auth_transaction); 1405 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code); 1406 if (len > 24 + sizeof(mgmt->u.auth)) { 1407 event.auth.ies = mgmt->u.auth.variable; 1408 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth); 1409 } 1410 1411 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event); 1412} 1413 1414 1415static unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv) 1416{ 1417 struct nl_msg *msg; 1418 int ret; 1419 struct nl80211_bss_info_arg arg; 1420 1421 os_memset(&arg, 0, sizeof(arg)); 1422 msg = nlmsg_alloc(); 1423 if (!msg) 1424 goto nla_put_failure; 1425 1426 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 1427 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 1428 1429 arg.drv = drv; 1430 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 1431 msg = NULL; 1432 if (ret == 0) { 1433 unsigned int freq = drv->nlmode == NL80211_IFTYPE_ADHOC ? 1434 arg.ibss_freq : arg.assoc_freq; 1435 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the " 1436 "associated BSS from scan results: %u MHz", freq); 1437 if (freq) 1438 drv->assoc_freq = freq; 1439 return drv->assoc_freq; 1440 } 1441 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 1442 "(%s)", ret, strerror(-ret)); 1443nla_put_failure: 1444 nlmsg_free(msg); 1445 return drv->assoc_freq; 1446} 1447 1448 1449static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv, 1450 const u8 *frame, size_t len) 1451{ 1452 const struct ieee80211_mgmt *mgmt; 1453 union wpa_event_data event; 1454 u16 status; 1455 1456 wpa_printf(MSG_DEBUG, "nl80211: Associate event"); 1457 mgmt = (const struct ieee80211_mgmt *) frame; 1458 if (len < 24 + sizeof(mgmt->u.assoc_resp)) { 1459 wpa_printf(MSG_DEBUG, "nl80211: Too short association event " 1460 "frame"); 1461 return; 1462 } 1463 1464 status = le_to_host16(mgmt->u.assoc_resp.status_code); 1465 if (status != WLAN_STATUS_SUCCESS) { 1466 os_memset(&event, 0, sizeof(event)); 1467 event.assoc_reject.bssid = mgmt->bssid; 1468 if (len > 24 + sizeof(mgmt->u.assoc_resp)) { 1469 event.assoc_reject.resp_ies = 1470 (u8 *) mgmt->u.assoc_resp.variable; 1471 event.assoc_reject.resp_ies_len = 1472 len - 24 - sizeof(mgmt->u.assoc_resp); 1473 } 1474 event.assoc_reject.status_code = status; 1475 1476 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); 1477 return; 1478 } 1479 1480 drv->associated = 1; 1481 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN); 1482 os_memcpy(drv->prev_bssid, mgmt->sa, ETH_ALEN); 1483 1484 os_memset(&event, 0, sizeof(event)); 1485 if (len > 24 + sizeof(mgmt->u.assoc_resp)) { 1486 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable; 1487 event.assoc_info.resp_ies_len = 1488 len - 24 - sizeof(mgmt->u.assoc_resp); 1489 } 1490 1491 event.assoc_info.freq = drv->assoc_freq; 1492 1493 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); 1494} 1495 1496 1497static void mlme_event_connect(struct wpa_driver_nl80211_data *drv, 1498 enum nl80211_commands cmd, struct nlattr *status, 1499 struct nlattr *addr, struct nlattr *req_ie, 1500 struct nlattr *resp_ie) 1501{ 1502 union wpa_event_data event; 1503 1504 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 1505 /* 1506 * Avoid reporting two association events that would confuse 1507 * the core code. 1508 */ 1509 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) " 1510 "when using userspace SME", cmd); 1511 return; 1512 } 1513 1514 if (cmd == NL80211_CMD_CONNECT) 1515 wpa_printf(MSG_DEBUG, "nl80211: Connect event"); 1516 else if (cmd == NL80211_CMD_ROAM) 1517 wpa_printf(MSG_DEBUG, "nl80211: Roam event"); 1518 1519 os_memset(&event, 0, sizeof(event)); 1520 if (cmd == NL80211_CMD_CONNECT && 1521 nla_get_u16(status) != WLAN_STATUS_SUCCESS) { 1522 if (addr) 1523 event.assoc_reject.bssid = nla_data(addr); 1524 if (resp_ie) { 1525 event.assoc_reject.resp_ies = nla_data(resp_ie); 1526 event.assoc_reject.resp_ies_len = nla_len(resp_ie); 1527 } 1528 event.assoc_reject.status_code = nla_get_u16(status); 1529 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); 1530 return; 1531 } 1532 1533 drv->associated = 1; 1534 if (addr) { 1535 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN); 1536 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); 1537 } 1538 1539 if (req_ie) { 1540 event.assoc_info.req_ies = nla_data(req_ie); 1541 event.assoc_info.req_ies_len = nla_len(req_ie); 1542 } 1543 if (resp_ie) { 1544 event.assoc_info.resp_ies = nla_data(resp_ie); 1545 event.assoc_info.resp_ies_len = nla_len(resp_ie); 1546 } 1547 1548 event.assoc_info.freq = nl80211_get_assoc_freq(drv); 1549 1550 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); 1551} 1552 1553 1554static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv, 1555 struct nlattr *reason, struct nlattr *addr, 1556 struct nlattr *by_ap) 1557{ 1558 union wpa_event_data data; 1559 unsigned int locally_generated = by_ap == NULL; 1560 1561 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 1562 /* 1563 * Avoid reporting two disassociation events that could 1564 * confuse the core code. 1565 */ 1566 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " 1567 "event when using userspace SME"); 1568 return; 1569 } 1570 1571 if (drv->ignore_next_local_disconnect) { 1572 drv->ignore_next_local_disconnect = 0; 1573 if (locally_generated) { 1574 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " 1575 "event triggered during reassociation"); 1576 return; 1577 } 1578 wpa_printf(MSG_WARNING, "nl80211: Was expecting local " 1579 "disconnect but got another disconnect " 1580 "event first"); 1581 } 1582 1583 wpa_printf(MSG_DEBUG, "nl80211: Disconnect event"); 1584 nl80211_mark_disconnected(drv); 1585 os_memset(&data, 0, sizeof(data)); 1586 if (reason) 1587 data.deauth_info.reason_code = nla_get_u16(reason); 1588 data.deauth_info.locally_generated = by_ap == NULL; 1589 wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, &data); 1590} 1591 1592 1593static int calculate_chan_offset(int width, int freq, int cf1, int cf2) 1594{ 1595 int freq1 = 0; 1596 1597 switch (convert2width(width)) { 1598 case CHAN_WIDTH_20_NOHT: 1599 case CHAN_WIDTH_20: 1600 return 0; 1601 case CHAN_WIDTH_40: 1602 freq1 = cf1 - 10; 1603 break; 1604 case CHAN_WIDTH_80: 1605 freq1 = cf1 - 30; 1606 break; 1607 case CHAN_WIDTH_160: 1608 freq1 = cf1 - 70; 1609 break; 1610 case CHAN_WIDTH_UNKNOWN: 1611 case CHAN_WIDTH_80P80: 1612 /* FIXME: implement this */ 1613 return 0; 1614 } 1615 1616 return (abs(freq - freq1) / 20) % 2 == 0 ? 1 : -1; 1617} 1618 1619 1620static void mlme_event_ch_switch(struct wpa_driver_nl80211_data *drv, 1621 struct nlattr *ifindex, struct nlattr *freq, 1622 struct nlattr *type, struct nlattr *bw, 1623 struct nlattr *cf1, struct nlattr *cf2) 1624{ 1625 struct i802_bss *bss; 1626 union wpa_event_data data; 1627 int ht_enabled = 1; 1628 int chan_offset = 0; 1629 int ifidx; 1630 1631 wpa_printf(MSG_DEBUG, "nl80211: Channel switch event"); 1632 1633 if (!freq) 1634 return; 1635 1636 ifidx = nla_get_u32(ifindex); 1637 for (bss = drv->first_bss; bss; bss = bss->next) 1638 if (bss->ifindex == ifidx) 1639 break; 1640 1641 if (bss == NULL) { 1642 wpa_printf(MSG_WARNING, "nl80211: Unknown ifindex (%d) for channel switch, ignoring", 1643 ifidx); 1644 return; 1645 } 1646 1647 if (type) { 1648 switch (nla_get_u32(type)) { 1649 case NL80211_CHAN_NO_HT: 1650 ht_enabled = 0; 1651 break; 1652 case NL80211_CHAN_HT20: 1653 break; 1654 case NL80211_CHAN_HT40PLUS: 1655 chan_offset = 1; 1656 break; 1657 case NL80211_CHAN_HT40MINUS: 1658 chan_offset = -1; 1659 break; 1660 } 1661 } else if (bw && cf1) { 1662 /* This can happen for example with VHT80 ch switch */ 1663 chan_offset = calculate_chan_offset(nla_get_u32(bw), 1664 nla_get_u32(freq), 1665 nla_get_u32(cf1), 1666 cf2 ? nla_get_u32(cf2) : 0); 1667 } else { 1668 wpa_printf(MSG_WARNING, "nl80211: Unknown secondary channel information - following channel definition calculations may fail"); 1669 } 1670 1671 os_memset(&data, 0, sizeof(data)); 1672 data.ch_switch.freq = nla_get_u32(freq); 1673 data.ch_switch.ht_enabled = ht_enabled; 1674 data.ch_switch.ch_offset = chan_offset; 1675 if (bw) 1676 data.ch_switch.ch_width = convert2width(nla_get_u32(bw)); 1677 if (cf1) 1678 data.ch_switch.cf1 = nla_get_u32(cf1); 1679 if (cf2) 1680 data.ch_switch.cf2 = nla_get_u32(cf2); 1681 1682 bss->freq = data.ch_switch.freq; 1683 1684 wpa_supplicant_event(bss->ctx, EVENT_CH_SWITCH, &data); 1685} 1686 1687 1688static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv, 1689 enum nl80211_commands cmd, struct nlattr *addr) 1690{ 1691 union wpa_event_data event; 1692 enum wpa_event_type ev; 1693 1694 if (nla_len(addr) != ETH_ALEN) 1695 return; 1696 1697 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR, 1698 cmd, MAC2STR((u8 *) nla_data(addr))); 1699 1700 if (cmd == NL80211_CMD_AUTHENTICATE) 1701 ev = EVENT_AUTH_TIMED_OUT; 1702 else if (cmd == NL80211_CMD_ASSOCIATE) 1703 ev = EVENT_ASSOC_TIMED_OUT; 1704 else 1705 return; 1706 1707 os_memset(&event, 0, sizeof(event)); 1708 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN); 1709 wpa_supplicant_event(drv->ctx, ev, &event); 1710} 1711 1712 1713static void mlme_event_mgmt(struct i802_bss *bss, 1714 struct nlattr *freq, struct nlattr *sig, 1715 const u8 *frame, size_t len) 1716{ 1717 struct wpa_driver_nl80211_data *drv = bss->drv; 1718 const struct ieee80211_mgmt *mgmt; 1719 union wpa_event_data event; 1720 u16 fc, stype; 1721 int ssi_signal = 0; 1722 int rx_freq = 0; 1723 1724 wpa_printf(MSG_MSGDUMP, "nl80211: Frame event"); 1725 mgmt = (const struct ieee80211_mgmt *) frame; 1726 if (len < 24) { 1727 wpa_printf(MSG_DEBUG, "nl80211: Too short management frame"); 1728 return; 1729 } 1730 1731 fc = le_to_host16(mgmt->frame_control); 1732 stype = WLAN_FC_GET_STYPE(fc); 1733 1734 if (sig) 1735 ssi_signal = (s32) nla_get_u32(sig); 1736 1737 os_memset(&event, 0, sizeof(event)); 1738 if (freq) { 1739 event.rx_mgmt.freq = nla_get_u32(freq); 1740 rx_freq = drv->last_mgmt_freq = event.rx_mgmt.freq; 1741 } 1742 wpa_printf(MSG_DEBUG, 1743 "nl80211: RX frame sa=" MACSTR 1744 " freq=%d ssi_signal=%d stype=%u (%s) len=%u", 1745 MAC2STR(mgmt->sa), rx_freq, ssi_signal, stype, fc2str(fc), 1746 (unsigned int) len); 1747 event.rx_mgmt.frame = frame; 1748 event.rx_mgmt.frame_len = len; 1749 event.rx_mgmt.ssi_signal = ssi_signal; 1750 event.rx_mgmt.drv_priv = bss; 1751 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 1752} 1753 1754 1755static void mlme_event_mgmt_tx_status(struct wpa_driver_nl80211_data *drv, 1756 struct nlattr *cookie, const u8 *frame, 1757 size_t len, struct nlattr *ack) 1758{ 1759 union wpa_event_data event; 1760 const struct ieee80211_hdr *hdr; 1761 u16 fc; 1762 1763 wpa_printf(MSG_DEBUG, "nl80211: Frame TX status event"); 1764 if (!is_ap_interface(drv->nlmode)) { 1765 u64 cookie_val; 1766 1767 if (!cookie) 1768 return; 1769 1770 cookie_val = nla_get_u64(cookie); 1771 wpa_printf(MSG_DEBUG, "nl80211: Action TX status:" 1772 " cookie=0%llx%s (ack=%d)", 1773 (long long unsigned int) cookie_val, 1774 cookie_val == drv->send_action_cookie ? 1775 " (match)" : " (unknown)", ack != NULL); 1776 if (cookie_val != drv->send_action_cookie) 1777 return; 1778 } 1779 1780 hdr = (const struct ieee80211_hdr *) frame; 1781 fc = le_to_host16(hdr->frame_control); 1782 1783 os_memset(&event, 0, sizeof(event)); 1784 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 1785 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 1786 event.tx_status.dst = hdr->addr1; 1787 event.tx_status.data = frame; 1788 event.tx_status.data_len = len; 1789 event.tx_status.ack = ack != NULL; 1790 wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event); 1791} 1792 1793 1794static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv, 1795 enum wpa_event_type type, 1796 const u8 *frame, size_t len) 1797{ 1798 const struct ieee80211_mgmt *mgmt; 1799 union wpa_event_data event; 1800 const u8 *bssid = NULL; 1801 u16 reason_code = 0; 1802 1803 if (type == EVENT_DEAUTH) 1804 wpa_printf(MSG_DEBUG, "nl80211: Deauthenticate event"); 1805 else 1806 wpa_printf(MSG_DEBUG, "nl80211: Disassociate event"); 1807 1808 mgmt = (const struct ieee80211_mgmt *) frame; 1809 if (len >= 24) { 1810 bssid = mgmt->bssid; 1811 1812 if ((drv->capa.flags & WPA_DRIVER_FLAGS_SME) && 1813 !drv->associated && 1814 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0 && 1815 os_memcmp(bssid, drv->auth_attempt_bssid, ETH_ALEN) != 0 && 1816 os_memcmp(bssid, drv->prev_bssid, ETH_ALEN) == 0) { 1817 /* 1818 * Avoid issues with some roaming cases where 1819 * disconnection event for the old AP may show up after 1820 * we have started connection with the new AP. 1821 */ 1822 wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth/disassoc event from old AP " MACSTR " when already authenticating with " MACSTR, 1823 MAC2STR(bssid), 1824 MAC2STR(drv->auth_attempt_bssid)); 1825 return; 1826 } 1827 1828 if (drv->associated != 0 && 1829 os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 && 1830 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) { 1831 /* 1832 * We have presumably received this deauth as a 1833 * response to a clear_state_mismatch() outgoing 1834 * deauth. Don't let it take us offline! 1835 */ 1836 wpa_printf(MSG_DEBUG, "nl80211: Deauth received " 1837 "from Unknown BSSID " MACSTR " -- ignoring", 1838 MAC2STR(bssid)); 1839 return; 1840 } 1841 } 1842 1843 nl80211_mark_disconnected(drv); 1844 os_memset(&event, 0, sizeof(event)); 1845 1846 /* Note: Same offset for Reason Code in both frame subtypes */ 1847 if (len >= 24 + sizeof(mgmt->u.deauth)) 1848 reason_code = le_to_host16(mgmt->u.deauth.reason_code); 1849 1850 if (type == EVENT_DISASSOC) { 1851 event.disassoc_info.locally_generated = 1852 !os_memcmp(mgmt->sa, drv->first_bss->addr, ETH_ALEN); 1853 event.disassoc_info.addr = bssid; 1854 event.disassoc_info.reason_code = reason_code; 1855 if (frame + len > mgmt->u.disassoc.variable) { 1856 event.disassoc_info.ie = mgmt->u.disassoc.variable; 1857 event.disassoc_info.ie_len = frame + len - 1858 mgmt->u.disassoc.variable; 1859 } 1860 } else { 1861 if (drv->ignore_deauth_event) { 1862 wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth event due to previous forced deauth-during-auth"); 1863 drv->ignore_deauth_event = 0; 1864 return; 1865 } 1866 event.deauth_info.locally_generated = 1867 !os_memcmp(mgmt->sa, drv->first_bss->addr, ETH_ALEN); 1868 if (drv->ignore_next_local_deauth) { 1869 drv->ignore_next_local_deauth = 0; 1870 if (event.deauth_info.locally_generated) { 1871 wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth event triggered due to own deauth request"); 1872 return; 1873 } 1874 wpa_printf(MSG_WARNING, "nl80211: Was expecting local deauth but got another disconnect event first"); 1875 } 1876 event.deauth_info.addr = bssid; 1877 event.deauth_info.reason_code = reason_code; 1878 if (frame + len > mgmt->u.deauth.variable) { 1879 event.deauth_info.ie = mgmt->u.deauth.variable; 1880 event.deauth_info.ie_len = frame + len - 1881 mgmt->u.deauth.variable; 1882 } 1883 } 1884 1885 wpa_supplicant_event(drv->ctx, type, &event); 1886} 1887 1888 1889static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv, 1890 enum wpa_event_type type, 1891 const u8 *frame, size_t len) 1892{ 1893 const struct ieee80211_mgmt *mgmt; 1894 union wpa_event_data event; 1895 u16 reason_code = 0; 1896 1897 if (type == EVENT_UNPROT_DEAUTH) 1898 wpa_printf(MSG_DEBUG, "nl80211: Unprot Deauthenticate event"); 1899 else 1900 wpa_printf(MSG_DEBUG, "nl80211: Unprot Disassociate event"); 1901 1902 if (len < 24) 1903 return; 1904 1905 mgmt = (const struct ieee80211_mgmt *) frame; 1906 1907 os_memset(&event, 0, sizeof(event)); 1908 /* Note: Same offset for Reason Code in both frame subtypes */ 1909 if (len >= 24 + sizeof(mgmt->u.deauth)) 1910 reason_code = le_to_host16(mgmt->u.deauth.reason_code); 1911 1912 if (type == EVENT_UNPROT_DISASSOC) { 1913 event.unprot_disassoc.sa = mgmt->sa; 1914 event.unprot_disassoc.da = mgmt->da; 1915 event.unprot_disassoc.reason_code = reason_code; 1916 } else { 1917 event.unprot_deauth.sa = mgmt->sa; 1918 event.unprot_deauth.da = mgmt->da; 1919 event.unprot_deauth.reason_code = reason_code; 1920 } 1921 1922 wpa_supplicant_event(drv->ctx, type, &event); 1923} 1924 1925 1926static void mlme_event(struct i802_bss *bss, 1927 enum nl80211_commands cmd, struct nlattr *frame, 1928 struct nlattr *addr, struct nlattr *timed_out, 1929 struct nlattr *freq, struct nlattr *ack, 1930 struct nlattr *cookie, struct nlattr *sig) 1931{ 1932 struct wpa_driver_nl80211_data *drv = bss->drv; 1933 const u8 *data; 1934 size_t len; 1935 1936 if (timed_out && addr) { 1937 mlme_timeout_event(drv, cmd, addr); 1938 return; 1939 } 1940 1941 if (frame == NULL) { 1942 wpa_printf(MSG_DEBUG, 1943 "nl80211: MLME event %d (%s) without frame data", 1944 cmd, nl80211_command_to_string(cmd)); 1945 return; 1946 } 1947 1948 data = nla_data(frame); 1949 len = nla_len(frame); 1950 if (len < 4 + 2 * ETH_ALEN) { 1951 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" 1952 MACSTR ") - too short", 1953 cmd, nl80211_command_to_string(cmd), bss->ifname, 1954 MAC2STR(bss->addr)); 1955 return; 1956 } 1957 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" MACSTR 1958 ") A1=" MACSTR " A2=" MACSTR, cmd, 1959 nl80211_command_to_string(cmd), bss->ifname, 1960 MAC2STR(bss->addr), MAC2STR(data + 4), 1961 MAC2STR(data + 4 + ETH_ALEN)); 1962 if (cmd != NL80211_CMD_FRAME_TX_STATUS && !(data[4] & 0x01) && 1963 os_memcmp(bss->addr, data + 4, ETH_ALEN) != 0 && 1964 os_memcmp(bss->addr, data + 4 + ETH_ALEN, ETH_ALEN) != 0) { 1965 wpa_printf(MSG_MSGDUMP, "nl80211: %s: Ignore MLME frame event " 1966 "for foreign address", bss->ifname); 1967 return; 1968 } 1969 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame", 1970 nla_data(frame), nla_len(frame)); 1971 1972 switch (cmd) { 1973 case NL80211_CMD_AUTHENTICATE: 1974 mlme_event_auth(drv, nla_data(frame), nla_len(frame)); 1975 break; 1976 case NL80211_CMD_ASSOCIATE: 1977 mlme_event_assoc(drv, nla_data(frame), nla_len(frame)); 1978 break; 1979 case NL80211_CMD_DEAUTHENTICATE: 1980 mlme_event_deauth_disassoc(drv, EVENT_DEAUTH, 1981 nla_data(frame), nla_len(frame)); 1982 break; 1983 case NL80211_CMD_DISASSOCIATE: 1984 mlme_event_deauth_disassoc(drv, EVENT_DISASSOC, 1985 nla_data(frame), nla_len(frame)); 1986 break; 1987 case NL80211_CMD_FRAME: 1988 mlme_event_mgmt(bss, freq, sig, nla_data(frame), 1989 nla_len(frame)); 1990 break; 1991 case NL80211_CMD_FRAME_TX_STATUS: 1992 mlme_event_mgmt_tx_status(drv, cookie, nla_data(frame), 1993 nla_len(frame), ack); 1994 break; 1995 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 1996 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH, 1997 nla_data(frame), nla_len(frame)); 1998 break; 1999 case NL80211_CMD_UNPROT_DISASSOCIATE: 2000 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC, 2001 nla_data(frame), nla_len(frame)); 2002 break; 2003 default: 2004 break; 2005 } 2006} 2007 2008 2009static void mlme_event_michael_mic_failure(struct i802_bss *bss, 2010 struct nlattr *tb[]) 2011{ 2012 union wpa_event_data data; 2013 2014 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure"); 2015 os_memset(&data, 0, sizeof(data)); 2016 if (tb[NL80211_ATTR_MAC]) { 2017 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address", 2018 nla_data(tb[NL80211_ATTR_MAC]), 2019 nla_len(tb[NL80211_ATTR_MAC])); 2020 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]); 2021 } 2022 if (tb[NL80211_ATTR_KEY_SEQ]) { 2023 wpa_hexdump(MSG_DEBUG, "nl80211: TSC", 2024 nla_data(tb[NL80211_ATTR_KEY_SEQ]), 2025 nla_len(tb[NL80211_ATTR_KEY_SEQ])); 2026 } 2027 if (tb[NL80211_ATTR_KEY_TYPE]) { 2028 enum nl80211_key_type key_type = 2029 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]); 2030 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type); 2031 if (key_type == NL80211_KEYTYPE_PAIRWISE) 2032 data.michael_mic_failure.unicast = 1; 2033 } else 2034 data.michael_mic_failure.unicast = 1; 2035 2036 if (tb[NL80211_ATTR_KEY_IDX]) { 2037 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]); 2038 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id); 2039 } 2040 2041 wpa_supplicant_event(bss->ctx, EVENT_MICHAEL_MIC_FAILURE, &data); 2042} 2043 2044 2045static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv, 2046 struct nlattr *tb[]) 2047{ 2048 unsigned int freq; 2049 2050 if (tb[NL80211_ATTR_MAC] == NULL) { 2051 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined " 2052 "event"); 2053 return; 2054 } 2055 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2056 2057 drv->associated = 1; 2058 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined", 2059 MAC2STR(drv->bssid)); 2060 2061 freq = nl80211_get_assoc_freq(drv); 2062 if (freq) { 2063 wpa_printf(MSG_DEBUG, "nl80211: IBSS on frequency %u MHz", 2064 freq); 2065 drv->first_bss->freq = freq; 2066 } 2067 2068 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL); 2069} 2070 2071 2072static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv, 2073 int cancel_event, struct nlattr *tb[]) 2074{ 2075 unsigned int freq, chan_type, duration; 2076 union wpa_event_data data; 2077 u64 cookie; 2078 2079 if (tb[NL80211_ATTR_WIPHY_FREQ]) 2080 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); 2081 else 2082 freq = 0; 2083 2084 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) 2085 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); 2086 else 2087 chan_type = 0; 2088 2089 if (tb[NL80211_ATTR_DURATION]) 2090 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]); 2091 else 2092 duration = 0; 2093 2094 if (tb[NL80211_ATTR_COOKIE]) 2095 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 2096 else 2097 cookie = 0; 2098 2099 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d " 2100 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))", 2101 cancel_event, freq, chan_type, duration, 2102 (long long unsigned int) cookie, 2103 cookie == drv->remain_on_chan_cookie ? "match" : "unknown"); 2104 2105 if (cookie != drv->remain_on_chan_cookie) 2106 return; /* not for us */ 2107 2108 if (cancel_event) 2109 drv->pending_remain_on_chan = 0; 2110 2111 os_memset(&data, 0, sizeof(data)); 2112 data.remain_on_channel.freq = freq; 2113 data.remain_on_channel.duration = duration; 2114 wpa_supplicant_event(drv->ctx, cancel_event ? 2115 EVENT_CANCEL_REMAIN_ON_CHANNEL : 2116 EVENT_REMAIN_ON_CHANNEL, &data); 2117} 2118 2119 2120static void mlme_event_ft_event(struct wpa_driver_nl80211_data *drv, 2121 struct nlattr *tb[]) 2122{ 2123 union wpa_event_data data; 2124 2125 os_memset(&data, 0, sizeof(data)); 2126 2127 if (tb[NL80211_ATTR_IE]) { 2128 data.ft_ies.ies = nla_data(tb[NL80211_ATTR_IE]); 2129 data.ft_ies.ies_len = nla_len(tb[NL80211_ATTR_IE]); 2130 } 2131 2132 if (tb[NL80211_ATTR_IE_RIC]) { 2133 data.ft_ies.ric_ies = nla_data(tb[NL80211_ATTR_IE_RIC]); 2134 data.ft_ies.ric_ies_len = nla_len(tb[NL80211_ATTR_IE_RIC]); 2135 } 2136 2137 if (tb[NL80211_ATTR_MAC]) 2138 os_memcpy(data.ft_ies.target_ap, 2139 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2140 2141 wpa_printf(MSG_DEBUG, "nl80211: FT event target_ap " MACSTR, 2142 MAC2STR(data.ft_ies.target_ap)); 2143 2144 wpa_supplicant_event(drv->ctx, EVENT_FT_RESPONSE, &data); 2145} 2146 2147 2148static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted, 2149 struct nlattr *tb[]) 2150{ 2151 union wpa_event_data event; 2152 struct nlattr *nl; 2153 int rem; 2154 struct scan_info *info; 2155#define MAX_REPORT_FREQS 50 2156 int freqs[MAX_REPORT_FREQS]; 2157 int num_freqs = 0; 2158 2159 if (drv->scan_for_auth) { 2160 drv->scan_for_auth = 0; 2161 wpa_printf(MSG_DEBUG, "nl80211: Scan results for missing " 2162 "cfg80211 BSS entry"); 2163 wpa_driver_nl80211_authenticate_retry(drv); 2164 return; 2165 } 2166 2167 os_memset(&event, 0, sizeof(event)); 2168 info = &event.scan_info; 2169 info->aborted = aborted; 2170 2171 if (tb[NL80211_ATTR_SCAN_SSIDS]) { 2172 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) { 2173 struct wpa_driver_scan_ssid *s = 2174 &info->ssids[info->num_ssids]; 2175 s->ssid = nla_data(nl); 2176 s->ssid_len = nla_len(nl); 2177 wpa_printf(MSG_DEBUG, "nl80211: Scan probed for SSID '%s'", 2178 wpa_ssid_txt(s->ssid, s->ssid_len)); 2179 info->num_ssids++; 2180 if (info->num_ssids == WPAS_MAX_SCAN_SSIDS) 2181 break; 2182 } 2183 } 2184 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) { 2185 char msg[200], *pos, *end; 2186 int res; 2187 2188 pos = msg; 2189 end = pos + sizeof(msg); 2190 *pos = '\0'; 2191 2192 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem) 2193 { 2194 freqs[num_freqs] = nla_get_u32(nl); 2195 res = os_snprintf(pos, end - pos, " %d", 2196 freqs[num_freqs]); 2197 if (res > 0 && end - pos > res) 2198 pos += res; 2199 num_freqs++; 2200 if (num_freqs == MAX_REPORT_FREQS - 1) 2201 break; 2202 } 2203 info->freqs = freqs; 2204 info->num_freqs = num_freqs; 2205 wpa_printf(MSG_DEBUG, "nl80211: Scan included frequencies:%s", 2206 msg); 2207 } 2208 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event); 2209} 2210 2211 2212static int get_link_signal(struct nl_msg *msg, void *arg) 2213{ 2214 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2215 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2216 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1]; 2217 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = { 2218 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 }, 2219 [NL80211_STA_INFO_SIGNAL_AVG] = { .type = NLA_U8 }, 2220 }; 2221 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1]; 2222 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = { 2223 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 }, 2224 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 }, 2225 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG }, 2226 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG }, 2227 }; 2228 struct wpa_signal_info *sig_change = arg; 2229 2230 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2231 genlmsg_attrlen(gnlh, 0), NULL); 2232 if (!tb[NL80211_ATTR_STA_INFO] || 2233 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX, 2234 tb[NL80211_ATTR_STA_INFO], policy)) 2235 return NL_SKIP; 2236 if (!sinfo[NL80211_STA_INFO_SIGNAL]) 2237 return NL_SKIP; 2238 2239 sig_change->current_signal = 2240 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]); 2241 2242 if (sinfo[NL80211_STA_INFO_SIGNAL_AVG]) 2243 sig_change->avg_signal = 2244 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL_AVG]); 2245 else 2246 sig_change->avg_signal = 0; 2247 2248 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) { 2249 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX, 2250 sinfo[NL80211_STA_INFO_TX_BITRATE], 2251 rate_policy)) { 2252 sig_change->current_txrate = 0; 2253 } else { 2254 if (rinfo[NL80211_RATE_INFO_BITRATE]) { 2255 sig_change->current_txrate = 2256 nla_get_u16(rinfo[ 2257 NL80211_RATE_INFO_BITRATE]) * 100; 2258 } 2259 } 2260 } 2261 2262 return NL_SKIP; 2263} 2264 2265 2266static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv, 2267 struct wpa_signal_info *sig) 2268{ 2269 struct nl_msg *msg; 2270 2271 sig->current_signal = -9999; 2272 sig->current_txrate = 0; 2273 2274 msg = nlmsg_alloc(); 2275 if (!msg) 2276 return -ENOMEM; 2277 2278 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 2279 2280 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2281 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 2282 2283 return send_and_recv_msgs(drv, msg, get_link_signal, sig); 2284 nla_put_failure: 2285 nlmsg_free(msg); 2286 return -ENOBUFS; 2287} 2288 2289 2290static int get_link_noise(struct nl_msg *msg, void *arg) 2291{ 2292 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2293 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2294 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 2295 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 2296 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 2297 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 2298 }; 2299 struct wpa_signal_info *sig_change = arg; 2300 2301 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2302 genlmsg_attrlen(gnlh, 0), NULL); 2303 2304 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 2305 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!"); 2306 return NL_SKIP; 2307 } 2308 2309 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 2310 tb[NL80211_ATTR_SURVEY_INFO], 2311 survey_policy)) { 2312 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested " 2313 "attributes!"); 2314 return NL_SKIP; 2315 } 2316 2317 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 2318 return NL_SKIP; 2319 2320 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 2321 sig_change->frequency) 2322 return NL_SKIP; 2323 2324 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 2325 return NL_SKIP; 2326 2327 sig_change->current_noise = 2328 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 2329 2330 return NL_SKIP; 2331} 2332 2333 2334static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv, 2335 struct wpa_signal_info *sig_change) 2336{ 2337 struct nl_msg *msg; 2338 2339 sig_change->current_noise = 9999; 2340 sig_change->frequency = drv->assoc_freq; 2341 2342 msg = nlmsg_alloc(); 2343 if (!msg) 2344 return -ENOMEM; 2345 2346 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 2347 2348 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2349 2350 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change); 2351 nla_put_failure: 2352 nlmsg_free(msg); 2353 return -ENOBUFS; 2354} 2355 2356 2357static int get_noise_for_scan_results(struct nl_msg *msg, void *arg) 2358{ 2359 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2360 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2361 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 2362 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 2363 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 2364 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 2365 }; 2366 struct wpa_scan_results *scan_results = arg; 2367 struct wpa_scan_res *scan_res; 2368 size_t i; 2369 2370 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2371 genlmsg_attrlen(gnlh, 0), NULL); 2372 2373 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 2374 wpa_printf(MSG_DEBUG, "nl80211: Survey data missing"); 2375 return NL_SKIP; 2376 } 2377 2378 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 2379 tb[NL80211_ATTR_SURVEY_INFO], 2380 survey_policy)) { 2381 wpa_printf(MSG_DEBUG, "nl80211: Failed to parse nested " 2382 "attributes"); 2383 return NL_SKIP; 2384 } 2385 2386 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 2387 return NL_SKIP; 2388 2389 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 2390 return NL_SKIP; 2391 2392 for (i = 0; i < scan_results->num; ++i) { 2393 scan_res = scan_results->res[i]; 2394 if (!scan_res) 2395 continue; 2396 if ((int) nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 2397 scan_res->freq) 2398 continue; 2399 if (!(scan_res->flags & WPA_SCAN_NOISE_INVALID)) 2400 continue; 2401 scan_res->noise = (s8) 2402 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 2403 scan_res->flags &= ~WPA_SCAN_NOISE_INVALID; 2404 } 2405 2406 return NL_SKIP; 2407} 2408 2409 2410static int nl80211_get_noise_for_scan_results( 2411 struct wpa_driver_nl80211_data *drv, 2412 struct wpa_scan_results *scan_res) 2413{ 2414 struct nl_msg *msg; 2415 2416 msg = nlmsg_alloc(); 2417 if (!msg) 2418 return -ENOMEM; 2419 2420 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 2421 2422 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2423 2424 return send_and_recv_msgs(drv, msg, get_noise_for_scan_results, 2425 scan_res); 2426 nla_put_failure: 2427 nlmsg_free(msg); 2428 return -ENOBUFS; 2429} 2430 2431 2432static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv, 2433 struct nlattr *tb[]) 2434{ 2435 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = { 2436 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, 2437 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 }, 2438 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, 2439 [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 }, 2440 }; 2441 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1]; 2442 enum nl80211_cqm_rssi_threshold_event event; 2443 union wpa_event_data ed; 2444 struct wpa_signal_info sig; 2445 int res; 2446 2447 if (tb[NL80211_ATTR_CQM] == NULL || 2448 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM], 2449 cqm_policy)) { 2450 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event"); 2451 return; 2452 } 2453 2454 os_memset(&ed, 0, sizeof(ed)); 2455 2456 if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) { 2457 if (!tb[NL80211_ATTR_MAC]) 2458 return; 2459 os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]), 2460 ETH_ALEN); 2461 wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed); 2462 return; 2463 } 2464 2465 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL) 2466 return; 2467 event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]); 2468 2469 if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) { 2470 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 2471 "event: RSSI high"); 2472 ed.signal_change.above_threshold = 1; 2473 } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) { 2474 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 2475 "event: RSSI low"); 2476 ed.signal_change.above_threshold = 0; 2477 } else 2478 return; 2479 2480 res = nl80211_get_link_signal(drv, &sig); 2481 if (res == 0) { 2482 ed.signal_change.current_signal = sig.current_signal; 2483 ed.signal_change.current_txrate = sig.current_txrate; 2484 wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d", 2485 sig.current_signal, sig.current_txrate); 2486 } 2487 2488 res = nl80211_get_link_noise(drv, &sig); 2489 if (res == 0) { 2490 ed.signal_change.current_noise = sig.current_noise; 2491 wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm", 2492 sig.current_noise); 2493 } 2494 2495 wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed); 2496} 2497 2498 2499static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv, 2500 struct nlattr **tb) 2501{ 2502 u8 *addr; 2503 union wpa_event_data data; 2504 2505 if (tb[NL80211_ATTR_MAC] == NULL) 2506 return; 2507 addr = nla_data(tb[NL80211_ATTR_MAC]); 2508 wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr)); 2509 2510 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2511 u8 *ies = NULL; 2512 size_t ies_len = 0; 2513 if (tb[NL80211_ATTR_IE]) { 2514 ies = nla_data(tb[NL80211_ATTR_IE]); 2515 ies_len = nla_len(tb[NL80211_ATTR_IE]); 2516 } 2517 wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len); 2518 drv_event_assoc(drv->ctx, addr, ies, ies_len, 0); 2519 return; 2520 } 2521 2522 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2523 return; 2524 2525 os_memset(&data, 0, sizeof(data)); 2526 os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN); 2527 wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data); 2528} 2529 2530 2531static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv, 2532 struct nlattr **tb) 2533{ 2534 u8 *addr; 2535 union wpa_event_data data; 2536 2537 if (tb[NL80211_ATTR_MAC] == NULL) 2538 return; 2539 addr = nla_data(tb[NL80211_ATTR_MAC]); 2540 wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR, 2541 MAC2STR(addr)); 2542 2543 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2544 drv_event_disassoc(drv->ctx, addr); 2545 return; 2546 } 2547 2548 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2549 return; 2550 2551 os_memset(&data, 0, sizeof(data)); 2552 os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN); 2553 wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data); 2554} 2555 2556 2557static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv, 2558 struct nlattr **tb) 2559{ 2560 struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA]; 2561 static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = { 2562 [NL80211_REKEY_DATA_KEK] = { 2563 .minlen = NL80211_KEK_LEN, 2564 .maxlen = NL80211_KEK_LEN, 2565 }, 2566 [NL80211_REKEY_DATA_KCK] = { 2567 .minlen = NL80211_KCK_LEN, 2568 .maxlen = NL80211_KCK_LEN, 2569 }, 2570 [NL80211_REKEY_DATA_REPLAY_CTR] = { 2571 .minlen = NL80211_REPLAY_CTR_LEN, 2572 .maxlen = NL80211_REPLAY_CTR_LEN, 2573 }, 2574 }; 2575 union wpa_event_data data; 2576 2577 if (!tb[NL80211_ATTR_MAC]) 2578 return; 2579 if (!tb[NL80211_ATTR_REKEY_DATA]) 2580 return; 2581 if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA, 2582 tb[NL80211_ATTR_REKEY_DATA], rekey_policy)) 2583 return; 2584 if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]) 2585 return; 2586 2587 os_memset(&data, 0, sizeof(data)); 2588 data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]); 2589 wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR, 2590 MAC2STR(data.driver_gtk_rekey.bssid)); 2591 data.driver_gtk_rekey.replay_ctr = 2592 nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]); 2593 wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter", 2594 data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN); 2595 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data); 2596} 2597 2598 2599static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv, 2600 struct nlattr **tb) 2601{ 2602 struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE]; 2603 static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = { 2604 [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 }, 2605 [NL80211_PMKSA_CANDIDATE_BSSID] = { 2606 .minlen = ETH_ALEN, 2607 .maxlen = ETH_ALEN, 2608 }, 2609 [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG }, 2610 }; 2611 union wpa_event_data data; 2612 2613 wpa_printf(MSG_DEBUG, "nl80211: PMKSA candidate event"); 2614 2615 if (!tb[NL80211_ATTR_PMKSA_CANDIDATE]) 2616 return; 2617 if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE, 2618 tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy)) 2619 return; 2620 if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] || 2621 !cand[NL80211_PMKSA_CANDIDATE_BSSID]) 2622 return; 2623 2624 os_memset(&data, 0, sizeof(data)); 2625 os_memcpy(data.pmkid_candidate.bssid, 2626 nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN); 2627 data.pmkid_candidate.index = 2628 nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]); 2629 data.pmkid_candidate.preauth = 2630 cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL; 2631 wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data); 2632} 2633 2634 2635static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv, 2636 struct nlattr **tb) 2637{ 2638 union wpa_event_data data; 2639 2640 wpa_printf(MSG_DEBUG, "nl80211: Probe client event"); 2641 2642 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_ACK]) 2643 return; 2644 2645 os_memset(&data, 0, sizeof(data)); 2646 os_memcpy(data.client_poll.addr, 2647 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2648 2649 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_CLIENT_POLL_OK, &data); 2650} 2651 2652 2653static void nl80211_tdls_oper_event(struct wpa_driver_nl80211_data *drv, 2654 struct nlattr **tb) 2655{ 2656 union wpa_event_data data; 2657 2658 wpa_printf(MSG_DEBUG, "nl80211: TDLS operation event"); 2659 2660 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_TDLS_OPERATION]) 2661 return; 2662 2663 os_memset(&data, 0, sizeof(data)); 2664 os_memcpy(data.tdls.peer, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2665 switch (nla_get_u8(tb[NL80211_ATTR_TDLS_OPERATION])) { 2666 case NL80211_TDLS_SETUP: 2667 wpa_printf(MSG_DEBUG, "nl80211: TDLS setup request for peer " 2668 MACSTR, MAC2STR(data.tdls.peer)); 2669 data.tdls.oper = TDLS_REQUEST_SETUP; 2670 break; 2671 case NL80211_TDLS_TEARDOWN: 2672 wpa_printf(MSG_DEBUG, "nl80211: TDLS teardown request for peer " 2673 MACSTR, MAC2STR(data.tdls.peer)); 2674 data.tdls.oper = TDLS_REQUEST_TEARDOWN; 2675 break; 2676 default: 2677 wpa_printf(MSG_DEBUG, "nl80211: Unsupported TDLS operatione " 2678 "event"); 2679 return; 2680 } 2681 if (tb[NL80211_ATTR_REASON_CODE]) { 2682 data.tdls.reason_code = 2683 nla_get_u16(tb[NL80211_ATTR_REASON_CODE]); 2684 } 2685 2686 wpa_supplicant_event(drv->ctx, EVENT_TDLS, &data); 2687} 2688 2689 2690static void nl80211_stop_ap(struct wpa_driver_nl80211_data *drv, 2691 struct nlattr **tb) 2692{ 2693 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_UNAVAILABLE, NULL); 2694} 2695 2696 2697static void nl80211_connect_failed_event(struct wpa_driver_nl80211_data *drv, 2698 struct nlattr **tb) 2699{ 2700 union wpa_event_data data; 2701 u32 reason; 2702 2703 wpa_printf(MSG_DEBUG, "nl80211: Connect failed event"); 2704 2705 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_CONN_FAILED_REASON]) 2706 return; 2707 2708 os_memset(&data, 0, sizeof(data)); 2709 os_memcpy(data.connect_failed_reason.addr, 2710 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2711 2712 reason = nla_get_u32(tb[NL80211_ATTR_CONN_FAILED_REASON]); 2713 switch (reason) { 2714 case NL80211_CONN_FAIL_MAX_CLIENTS: 2715 wpa_printf(MSG_DEBUG, "nl80211: Max client reached"); 2716 data.connect_failed_reason.code = MAX_CLIENT_REACHED; 2717 break; 2718 case NL80211_CONN_FAIL_BLOCKED_CLIENT: 2719 wpa_printf(MSG_DEBUG, "nl80211: Blocked client " MACSTR 2720 " tried to connect", 2721 MAC2STR(data.connect_failed_reason.addr)); 2722 data.connect_failed_reason.code = BLOCKED_CLIENT; 2723 break; 2724 default: 2725 wpa_printf(MSG_DEBUG, "nl8021l: Unknown connect failed reason " 2726 "%u", reason); 2727 return; 2728 } 2729 2730 wpa_supplicant_event(drv->ctx, EVENT_CONNECT_FAILED_REASON, &data); 2731} 2732 2733 2734static void nl80211_radar_event(struct wpa_driver_nl80211_data *drv, 2735 struct nlattr **tb) 2736{ 2737 union wpa_event_data data; 2738 enum nl80211_radar_event event_type; 2739 2740 if (!tb[NL80211_ATTR_WIPHY_FREQ] || !tb[NL80211_ATTR_RADAR_EVENT]) 2741 return; 2742 2743 os_memset(&data, 0, sizeof(data)); 2744 data.dfs_event.freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); 2745 event_type = nla_get_u32(tb[NL80211_ATTR_RADAR_EVENT]); 2746 2747 /* Check HT params */ 2748 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { 2749 data.dfs_event.ht_enabled = 1; 2750 data.dfs_event.chan_offset = 0; 2751 2752 switch (nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])) { 2753 case NL80211_CHAN_NO_HT: 2754 data.dfs_event.ht_enabled = 0; 2755 break; 2756 case NL80211_CHAN_HT20: 2757 break; 2758 case NL80211_CHAN_HT40PLUS: 2759 data.dfs_event.chan_offset = 1; 2760 break; 2761 case NL80211_CHAN_HT40MINUS: 2762 data.dfs_event.chan_offset = -1; 2763 break; 2764 } 2765 } 2766 2767 /* Get VHT params */ 2768 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) 2769 data.dfs_event.chan_width = 2770 convert2width(nla_get_u32( 2771 tb[NL80211_ATTR_CHANNEL_WIDTH])); 2772 if (tb[NL80211_ATTR_CENTER_FREQ1]) 2773 data.dfs_event.cf1 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); 2774 if (tb[NL80211_ATTR_CENTER_FREQ2]) 2775 data.dfs_event.cf2 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); 2776 2777 wpa_printf(MSG_DEBUG, "nl80211: DFS event on freq %d MHz, ht: %d, offset: %d, width: %d, cf1: %dMHz, cf2: %dMHz", 2778 data.dfs_event.freq, data.dfs_event.ht_enabled, 2779 data.dfs_event.chan_offset, data.dfs_event.chan_width, 2780 data.dfs_event.cf1, data.dfs_event.cf2); 2781 2782 switch (event_type) { 2783 case NL80211_RADAR_DETECTED: 2784 wpa_supplicant_event(drv->ctx, EVENT_DFS_RADAR_DETECTED, &data); 2785 break; 2786 case NL80211_RADAR_CAC_FINISHED: 2787 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_FINISHED, &data); 2788 break; 2789 case NL80211_RADAR_CAC_ABORTED: 2790 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_ABORTED, &data); 2791 break; 2792 case NL80211_RADAR_NOP_FINISHED: 2793 wpa_supplicant_event(drv->ctx, EVENT_DFS_NOP_FINISHED, &data); 2794 break; 2795 default: 2796 wpa_printf(MSG_DEBUG, "nl80211: Unknown radar event %d " 2797 "received", event_type); 2798 break; 2799 } 2800} 2801 2802 2803static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb, 2804 int wds) 2805{ 2806 struct wpa_driver_nl80211_data *drv = bss->drv; 2807 union wpa_event_data event; 2808 2809 if (!tb[NL80211_ATTR_MAC]) 2810 return; 2811 2812 os_memset(&event, 0, sizeof(event)); 2813 event.rx_from_unknown.bssid = bss->addr; 2814 event.rx_from_unknown.addr = nla_data(tb[NL80211_ATTR_MAC]); 2815 event.rx_from_unknown.wds = wds; 2816 2817 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 2818} 2819 2820 2821static void qca_nl80211_avoid_freq(struct wpa_driver_nl80211_data *drv, 2822 const u8 *data, size_t len) 2823{ 2824 u32 i, count; 2825 union wpa_event_data event; 2826 struct wpa_freq_range *range = NULL; 2827 const struct qca_avoid_freq_list *freq_range; 2828 2829 freq_range = (const struct qca_avoid_freq_list *) data; 2830 if (len < sizeof(freq_range->count)) 2831 return; 2832 2833 count = freq_range->count; 2834 if (len < sizeof(freq_range->count) + 2835 count * sizeof(struct qca_avoid_freq_range)) { 2836 wpa_printf(MSG_DEBUG, "nl80211: Ignored too short avoid frequency list (len=%u)", 2837 (unsigned int) len); 2838 return; 2839 } 2840 2841 if (count > 0) { 2842 range = os_calloc(count, sizeof(struct wpa_freq_range)); 2843 if (range == NULL) 2844 return; 2845 } 2846 2847 os_memset(&event, 0, sizeof(event)); 2848 for (i = 0; i < count; i++) { 2849 unsigned int idx = event.freq_range.num; 2850 range[idx].min = freq_range->range[i].start_freq; 2851 range[idx].max = freq_range->range[i].end_freq; 2852 wpa_printf(MSG_DEBUG, "nl80211: Avoid frequency range: %u-%u", 2853 range[idx].min, range[idx].max); 2854 if (range[idx].min > range[idx].max) { 2855 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid frequency range"); 2856 continue; 2857 } 2858 event.freq_range.num++; 2859 } 2860 event.freq_range.range = range; 2861 2862 wpa_supplicant_event(drv->ctx, EVENT_AVOID_FREQUENCIES, &event); 2863 2864 os_free(range); 2865} 2866 2867 2868static void nl80211_vendor_event_qca(struct wpa_driver_nl80211_data *drv, 2869 u32 subcmd, u8 *data, size_t len) 2870{ 2871 switch (subcmd) { 2872 case QCA_NL80211_VENDOR_SUBCMD_AVOID_FREQUENCY: 2873 qca_nl80211_avoid_freq(drv, data, len); 2874 break; 2875 default: 2876 wpa_printf(MSG_DEBUG, 2877 "nl80211: Ignore unsupported QCA vendor event %u", 2878 subcmd); 2879 break; 2880 } 2881} 2882 2883 2884static void nl80211_vendor_event(struct wpa_driver_nl80211_data *drv, 2885 struct nlattr **tb) 2886{ 2887 u32 vendor_id, subcmd, wiphy = 0; 2888 int wiphy_idx; 2889 u8 *data = NULL; 2890 size_t len = 0; 2891 2892 if (!tb[NL80211_ATTR_VENDOR_ID] || 2893 !tb[NL80211_ATTR_VENDOR_SUBCMD]) 2894 return; 2895 2896 vendor_id = nla_get_u32(tb[NL80211_ATTR_VENDOR_ID]); 2897 subcmd = nla_get_u32(tb[NL80211_ATTR_VENDOR_SUBCMD]); 2898 2899 if (tb[NL80211_ATTR_WIPHY]) 2900 wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]); 2901 2902 wpa_printf(MSG_DEBUG, "nl80211: Vendor event: wiphy=%u vendor_id=0x%x subcmd=%u", 2903 wiphy, vendor_id, subcmd); 2904 2905 if (tb[NL80211_ATTR_VENDOR_DATA]) { 2906 data = nla_data(tb[NL80211_ATTR_VENDOR_DATA]); 2907 len = nla_len(tb[NL80211_ATTR_VENDOR_DATA]); 2908 wpa_hexdump(MSG_MSGDUMP, "nl80211: Vendor data", data, len); 2909 } 2910 2911 wiphy_idx = nl80211_get_wiphy_index(drv->first_bss); 2912 if (wiphy_idx >= 0 && wiphy_idx != (int) wiphy) { 2913 wpa_printf(MSG_DEBUG, "nl80211: Ignore vendor event for foreign wiphy %u (own: %d)", 2914 wiphy, wiphy_idx); 2915 return; 2916 } 2917 2918 switch (vendor_id) { 2919 case OUI_QCA: 2920 nl80211_vendor_event_qca(drv, subcmd, data, len); 2921 break; 2922 default: 2923 wpa_printf(MSG_DEBUG, "nl80211: Ignore unsupported vendor event"); 2924 break; 2925 } 2926} 2927 2928 2929static void nl80211_reg_change_event(struct wpa_driver_nl80211_data *drv, 2930 struct nlattr *tb[]) 2931{ 2932 union wpa_event_data data; 2933 enum nl80211_reg_initiator init; 2934 2935 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change"); 2936 2937 if (tb[NL80211_ATTR_REG_INITIATOR] == NULL) 2938 return; 2939 2940 os_memset(&data, 0, sizeof(data)); 2941 init = nla_get_u8(tb[NL80211_ATTR_REG_INITIATOR]); 2942 wpa_printf(MSG_DEBUG, " * initiator=%d", init); 2943 switch (init) { 2944 case NL80211_REGDOM_SET_BY_CORE: 2945 data.channel_list_changed.initiator = REGDOM_SET_BY_CORE; 2946 break; 2947 case NL80211_REGDOM_SET_BY_USER: 2948 data.channel_list_changed.initiator = REGDOM_SET_BY_USER; 2949 break; 2950 case NL80211_REGDOM_SET_BY_DRIVER: 2951 data.channel_list_changed.initiator = REGDOM_SET_BY_DRIVER; 2952 break; 2953 case NL80211_REGDOM_SET_BY_COUNTRY_IE: 2954 data.channel_list_changed.initiator = REGDOM_SET_BY_COUNTRY_IE; 2955 break; 2956 } 2957 2958 if (tb[NL80211_ATTR_REG_TYPE]) { 2959 enum nl80211_reg_type type; 2960 type = nla_get_u8(tb[NL80211_ATTR_REG_TYPE]); 2961 wpa_printf(MSG_DEBUG, " * type=%d", type); 2962 switch (type) { 2963 case NL80211_REGDOM_TYPE_COUNTRY: 2964 data.channel_list_changed.type = REGDOM_TYPE_COUNTRY; 2965 break; 2966 case NL80211_REGDOM_TYPE_WORLD: 2967 data.channel_list_changed.type = REGDOM_TYPE_WORLD; 2968 break; 2969 case NL80211_REGDOM_TYPE_CUSTOM_WORLD: 2970 data.channel_list_changed.type = 2971 REGDOM_TYPE_CUSTOM_WORLD; 2972 break; 2973 case NL80211_REGDOM_TYPE_INTERSECTION: 2974 data.channel_list_changed.type = 2975 REGDOM_TYPE_INTERSECTION; 2976 break; 2977 } 2978 } 2979 2980 if (tb[NL80211_ATTR_REG_ALPHA2]) { 2981 os_strlcpy(data.channel_list_changed.alpha2, 2982 nla_get_string(tb[NL80211_ATTR_REG_ALPHA2]), 2983 sizeof(data.channel_list_changed.alpha2)); 2984 wpa_printf(MSG_DEBUG, " * alpha2=%s", 2985 data.channel_list_changed.alpha2); 2986 } 2987 2988 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, &data); 2989} 2990 2991 2992static void do_process_drv_event(struct i802_bss *bss, int cmd, 2993 struct nlattr **tb) 2994{ 2995 struct wpa_driver_nl80211_data *drv = bss->drv; 2996 union wpa_event_data data; 2997 2998 wpa_printf(MSG_DEBUG, "nl80211: Drv Event %d (%s) received for %s", 2999 cmd, nl80211_command_to_string(cmd), bss->ifname); 3000 3001 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED && 3002 (cmd == NL80211_CMD_NEW_SCAN_RESULTS || 3003 cmd == NL80211_CMD_SCAN_ABORTED)) { 3004 wpa_driver_nl80211_set_mode(drv->first_bss, 3005 drv->ap_scan_as_station); 3006 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 3007 } 3008 3009 switch (cmd) { 3010 case NL80211_CMD_TRIGGER_SCAN: 3011 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan trigger"); 3012 drv->scan_state = SCAN_STARTED; 3013 if (drv->scan_for_auth) { 3014 /* 3015 * Cannot indicate EVENT_SCAN_STARTED here since we skip 3016 * EVENT_SCAN_RESULTS in scan_for_auth case and the 3017 * upper layer implementation could get confused about 3018 * scanning state. 3019 */ 3020 wpa_printf(MSG_DEBUG, "nl80211: Do not indicate scan-start event due to internal scan_for_auth"); 3021 break; 3022 } 3023 wpa_supplicant_event(drv->ctx, EVENT_SCAN_STARTED, NULL); 3024 break; 3025 case NL80211_CMD_START_SCHED_SCAN: 3026 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan started"); 3027 drv->scan_state = SCHED_SCAN_STARTED; 3028 break; 3029 case NL80211_CMD_SCHED_SCAN_STOPPED: 3030 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan stopped"); 3031 drv->scan_state = SCHED_SCAN_STOPPED; 3032 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL); 3033 break; 3034 case NL80211_CMD_NEW_SCAN_RESULTS: 3035 wpa_dbg(drv->ctx, MSG_DEBUG, 3036 "nl80211: New scan results available"); 3037 drv->scan_state = SCAN_COMPLETED; 3038 drv->scan_complete_events = 1; 3039 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 3040 drv->ctx); 3041 send_scan_event(drv, 0, tb); 3042 break; 3043 case NL80211_CMD_SCHED_SCAN_RESULTS: 3044 wpa_dbg(drv->ctx, MSG_DEBUG, 3045 "nl80211: New sched scan results available"); 3046 drv->scan_state = SCHED_SCAN_RESULTS; 3047 send_scan_event(drv, 0, tb); 3048 break; 3049 case NL80211_CMD_SCAN_ABORTED: 3050 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan aborted"); 3051 drv->scan_state = SCAN_ABORTED; 3052 /* 3053 * Need to indicate that scan results are available in order 3054 * not to make wpa_supplicant stop its scanning. 3055 */ 3056 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 3057 drv->ctx); 3058 send_scan_event(drv, 1, tb); 3059 break; 3060 case NL80211_CMD_AUTHENTICATE: 3061 case NL80211_CMD_ASSOCIATE: 3062 case NL80211_CMD_DEAUTHENTICATE: 3063 case NL80211_CMD_DISASSOCIATE: 3064 case NL80211_CMD_FRAME_TX_STATUS: 3065 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 3066 case NL80211_CMD_UNPROT_DISASSOCIATE: 3067 mlme_event(bss, cmd, tb[NL80211_ATTR_FRAME], 3068 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 3069 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 3070 tb[NL80211_ATTR_COOKIE], 3071 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 3072 break; 3073 case NL80211_CMD_CONNECT: 3074 case NL80211_CMD_ROAM: 3075 mlme_event_connect(drv, cmd, 3076 tb[NL80211_ATTR_STATUS_CODE], 3077 tb[NL80211_ATTR_MAC], 3078 tb[NL80211_ATTR_REQ_IE], 3079 tb[NL80211_ATTR_RESP_IE]); 3080 break; 3081 case NL80211_CMD_CH_SWITCH_NOTIFY: 3082 mlme_event_ch_switch(drv, 3083 tb[NL80211_ATTR_IFINDEX], 3084 tb[NL80211_ATTR_WIPHY_FREQ], 3085 tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE], 3086 tb[NL80211_ATTR_CHANNEL_WIDTH], 3087 tb[NL80211_ATTR_CENTER_FREQ1], 3088 tb[NL80211_ATTR_CENTER_FREQ2]); 3089 break; 3090 case NL80211_CMD_DISCONNECT: 3091 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE], 3092 tb[NL80211_ATTR_MAC], 3093 tb[NL80211_ATTR_DISCONNECTED_BY_AP]); 3094 break; 3095 case NL80211_CMD_MICHAEL_MIC_FAILURE: 3096 mlme_event_michael_mic_failure(bss, tb); 3097 break; 3098 case NL80211_CMD_JOIN_IBSS: 3099 mlme_event_join_ibss(drv, tb); 3100 break; 3101 case NL80211_CMD_REMAIN_ON_CHANNEL: 3102 mlme_event_remain_on_channel(drv, 0, tb); 3103 break; 3104 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL: 3105 mlme_event_remain_on_channel(drv, 1, tb); 3106 break; 3107 case NL80211_CMD_NOTIFY_CQM: 3108 nl80211_cqm_event(drv, tb); 3109 break; 3110 case NL80211_CMD_REG_CHANGE: 3111 nl80211_reg_change_event(drv, tb); 3112 break; 3113 case NL80211_CMD_REG_BEACON_HINT: 3114 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint"); 3115 os_memset(&data, 0, sizeof(data)); 3116 data.channel_list_changed.initiator = REGDOM_BEACON_HINT; 3117 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 3118 &data); 3119 break; 3120 case NL80211_CMD_NEW_STATION: 3121 nl80211_new_station_event(drv, tb); 3122 break; 3123 case NL80211_CMD_DEL_STATION: 3124 nl80211_del_station_event(drv, tb); 3125 break; 3126 case NL80211_CMD_SET_REKEY_OFFLOAD: 3127 nl80211_rekey_offload_event(drv, tb); 3128 break; 3129 case NL80211_CMD_PMKSA_CANDIDATE: 3130 nl80211_pmksa_candidate_event(drv, tb); 3131 break; 3132 case NL80211_CMD_PROBE_CLIENT: 3133 nl80211_client_probe_event(drv, tb); 3134 break; 3135 case NL80211_CMD_TDLS_OPER: 3136 nl80211_tdls_oper_event(drv, tb); 3137 break; 3138 case NL80211_CMD_CONN_FAILED: 3139 nl80211_connect_failed_event(drv, tb); 3140 break; 3141 case NL80211_CMD_FT_EVENT: 3142 mlme_event_ft_event(drv, tb); 3143 break; 3144 case NL80211_CMD_RADAR_DETECT: 3145 nl80211_radar_event(drv, tb); 3146 break; 3147 case NL80211_CMD_STOP_AP: 3148 nl80211_stop_ap(drv, tb); 3149 break; 3150 case NL80211_CMD_VENDOR: 3151 nl80211_vendor_event(drv, tb); 3152 break; 3153 default: 3154 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Ignored unknown event " 3155 "(cmd=%d)", cmd); 3156 break; 3157 } 3158} 3159 3160 3161static int process_drv_event(struct nl_msg *msg, void *arg) 3162{ 3163 struct wpa_driver_nl80211_data *drv = arg; 3164 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3165 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3166 struct i802_bss *bss; 3167 int ifidx = -1; 3168 3169 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3170 genlmsg_attrlen(gnlh, 0), NULL); 3171 3172 if (tb[NL80211_ATTR_IFINDEX]) { 3173 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 3174 3175 for (bss = drv->first_bss; bss; bss = bss->next) 3176 if (ifidx == -1 || ifidx == bss->ifindex) { 3177 do_process_drv_event(bss, gnlh->cmd, tb); 3178 return NL_SKIP; 3179 } 3180 wpa_printf(MSG_DEBUG, 3181 "nl80211: Ignored event (cmd=%d) for foreign interface (ifindex %d)", 3182 gnlh->cmd, ifidx); 3183 } else if (tb[NL80211_ATTR_WDEV]) { 3184 u64 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 3185 wpa_printf(MSG_DEBUG, "nl80211: Process event on P2P device"); 3186 for (bss = drv->first_bss; bss; bss = bss->next) { 3187 if (bss->wdev_id_set && wdev_id == bss->wdev_id) { 3188 do_process_drv_event(bss, gnlh->cmd, tb); 3189 return NL_SKIP; 3190 } 3191 } 3192 wpa_printf(MSG_DEBUG, 3193 "nl80211: Ignored event (cmd=%d) for foreign interface (wdev 0x%llx)", 3194 gnlh->cmd, (long long unsigned int) wdev_id); 3195 } 3196 3197 return NL_SKIP; 3198} 3199 3200 3201static int process_global_event(struct nl_msg *msg, void *arg) 3202{ 3203 struct nl80211_global *global = arg; 3204 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3205 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3206 struct wpa_driver_nl80211_data *drv, *tmp; 3207 int ifidx = -1; 3208 struct i802_bss *bss; 3209 u64 wdev_id = 0; 3210 int wdev_id_set = 0; 3211 3212 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3213 genlmsg_attrlen(gnlh, 0), NULL); 3214 3215 if (tb[NL80211_ATTR_IFINDEX]) 3216 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 3217 else if (tb[NL80211_ATTR_WDEV]) { 3218 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 3219 wdev_id_set = 1; 3220 } 3221 3222 dl_list_for_each_safe(drv, tmp, &global->interfaces, 3223 struct wpa_driver_nl80211_data, list) { 3224 for (bss = drv->first_bss; bss; bss = bss->next) { 3225 if ((ifidx == -1 && !wdev_id_set) || 3226 ifidx == bss->ifindex || 3227 (wdev_id_set && bss->wdev_id_set && 3228 wdev_id == bss->wdev_id)) { 3229 do_process_drv_event(bss, gnlh->cmd, tb); 3230 return NL_SKIP; 3231 } 3232 } 3233 } 3234 3235 return NL_SKIP; 3236} 3237 3238 3239static int process_bss_event(struct nl_msg *msg, void *arg) 3240{ 3241 struct i802_bss *bss = arg; 3242 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3243 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3244 3245 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3246 genlmsg_attrlen(gnlh, 0), NULL); 3247 3248 wpa_printf(MSG_DEBUG, "nl80211: BSS Event %d (%s) received for %s", 3249 gnlh->cmd, nl80211_command_to_string(gnlh->cmd), 3250 bss->ifname); 3251 3252 switch (gnlh->cmd) { 3253 case NL80211_CMD_FRAME: 3254 case NL80211_CMD_FRAME_TX_STATUS: 3255 mlme_event(bss, gnlh->cmd, tb[NL80211_ATTR_FRAME], 3256 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 3257 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 3258 tb[NL80211_ATTR_COOKIE], 3259 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 3260 break; 3261 case NL80211_CMD_UNEXPECTED_FRAME: 3262 nl80211_spurious_frame(bss, tb, 0); 3263 break; 3264 case NL80211_CMD_UNEXPECTED_4ADDR_FRAME: 3265 nl80211_spurious_frame(bss, tb, 1); 3266 break; 3267 default: 3268 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event " 3269 "(cmd=%d)", gnlh->cmd); 3270 break; 3271 } 3272 3273 return NL_SKIP; 3274} 3275 3276 3277static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx, 3278 void *handle) 3279{ 3280 struct nl_cb *cb = eloop_ctx; 3281 int res; 3282 3283 wpa_printf(MSG_MSGDUMP, "nl80211: Event message available"); 3284 3285 res = nl_recvmsgs(handle, cb); 3286 if (res < 0) { 3287 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d", 3288 __func__, res); 3289 } 3290} 3291 3292 3293/** 3294 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain 3295 * @priv: driver_nl80211 private data 3296 * @alpha2_arg: country to which to switch to 3297 * Returns: 0 on success, -1 on failure 3298 * 3299 * This asks nl80211 to set the regulatory domain for given 3300 * country ISO / IEC alpha2. 3301 */ 3302static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg) 3303{ 3304 struct i802_bss *bss = priv; 3305 struct wpa_driver_nl80211_data *drv = bss->drv; 3306 char alpha2[3]; 3307 struct nl_msg *msg; 3308 3309 msg = nlmsg_alloc(); 3310 if (!msg) 3311 return -ENOMEM; 3312 3313 alpha2[0] = alpha2_arg[0]; 3314 alpha2[1] = alpha2_arg[1]; 3315 alpha2[2] = '\0'; 3316 3317 nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG); 3318 3319 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2); 3320 if (send_and_recv_msgs(drv, msg, NULL, NULL)) 3321 return -EINVAL; 3322 return 0; 3323nla_put_failure: 3324 nlmsg_free(msg); 3325 return -EINVAL; 3326} 3327 3328 3329static int nl80211_get_country(struct nl_msg *msg, void *arg) 3330{ 3331 char *alpha2 = arg; 3332 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 3333 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3334 3335 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3336 genlmsg_attrlen(gnlh, 0), NULL); 3337 if (!tb_msg[NL80211_ATTR_REG_ALPHA2]) { 3338 wpa_printf(MSG_DEBUG, "nl80211: No country information available"); 3339 return NL_SKIP; 3340 } 3341 os_strlcpy(alpha2, nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]), 3); 3342 return NL_SKIP; 3343} 3344 3345 3346static int wpa_driver_nl80211_get_country(void *priv, char *alpha2) 3347{ 3348 struct i802_bss *bss = priv; 3349 struct wpa_driver_nl80211_data *drv = bss->drv; 3350 struct nl_msg *msg; 3351 int ret; 3352 3353 msg = nlmsg_alloc(); 3354 if (!msg) 3355 return -ENOMEM; 3356 3357 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 3358 alpha2[0] = '\0'; 3359 ret = send_and_recv_msgs(drv, msg, nl80211_get_country, alpha2); 3360 if (!alpha2[0]) 3361 ret = -1; 3362 3363 return ret; 3364} 3365 3366 3367static int protocol_feature_handler(struct nl_msg *msg, void *arg) 3368{ 3369 u32 *feat = arg; 3370 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 3371 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3372 3373 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3374 genlmsg_attrlen(gnlh, 0), NULL); 3375 3376 if (tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]) 3377 *feat = nla_get_u32(tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]); 3378 3379 return NL_SKIP; 3380} 3381 3382 3383static u32 get_nl80211_protocol_features(struct wpa_driver_nl80211_data *drv) 3384{ 3385 u32 feat = 0; 3386 struct nl_msg *msg; 3387 3388 msg = nlmsg_alloc(); 3389 if (!msg) 3390 goto nla_put_failure; 3391 3392 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_PROTOCOL_FEATURES); 3393 if (send_and_recv_msgs(drv, msg, protocol_feature_handler, &feat) == 0) 3394 return feat; 3395 3396 msg = NULL; 3397nla_put_failure: 3398 nlmsg_free(msg); 3399 return 0; 3400} 3401 3402 3403struct wiphy_info_data { 3404 struct wpa_driver_nl80211_data *drv; 3405 struct wpa_driver_capa *capa; 3406 3407 unsigned int num_multichan_concurrent; 3408 3409 unsigned int error:1; 3410 unsigned int device_ap_sme:1; 3411 unsigned int poll_command_supported:1; 3412 unsigned int data_tx_status:1; 3413 unsigned int monitor_supported:1; 3414 unsigned int auth_supported:1; 3415 unsigned int connect_supported:1; 3416 unsigned int p2p_go_supported:1; 3417 unsigned int p2p_client_supported:1; 3418 unsigned int p2p_concurrent:1; 3419 unsigned int channel_switch_supported:1; 3420 unsigned int set_qos_map_supported:1; 3421 unsigned int have_low_prio_scan:1; 3422}; 3423 3424 3425static unsigned int probe_resp_offload_support(int supp_protocols) 3426{ 3427 unsigned int prot = 0; 3428 3429 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS) 3430 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS; 3431 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2) 3432 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2; 3433 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P) 3434 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P; 3435 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U) 3436 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING; 3437 3438 return prot; 3439} 3440 3441 3442static void wiphy_info_supported_iftypes(struct wiphy_info_data *info, 3443 struct nlattr *tb) 3444{ 3445 struct nlattr *nl_mode; 3446 int i; 3447 3448 if (tb == NULL) 3449 return; 3450 3451 nla_for_each_nested(nl_mode, tb, i) { 3452 switch (nla_type(nl_mode)) { 3453 case NL80211_IFTYPE_AP: 3454 info->capa->flags |= WPA_DRIVER_FLAGS_AP; 3455 break; 3456 case NL80211_IFTYPE_ADHOC: 3457 info->capa->flags |= WPA_DRIVER_FLAGS_IBSS; 3458 break; 3459 case NL80211_IFTYPE_P2P_DEVICE: 3460 info->capa->flags |= 3461 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 3462 break; 3463 case NL80211_IFTYPE_P2P_GO: 3464 info->p2p_go_supported = 1; 3465 break; 3466 case NL80211_IFTYPE_P2P_CLIENT: 3467 info->p2p_client_supported = 1; 3468 break; 3469 case NL80211_IFTYPE_MONITOR: 3470 info->monitor_supported = 1; 3471 break; 3472 } 3473 } 3474} 3475 3476 3477static int wiphy_info_iface_comb_process(struct wiphy_info_data *info, 3478 struct nlattr *nl_combi) 3479{ 3480 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB]; 3481 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT]; 3482 struct nlattr *nl_limit, *nl_mode; 3483 int err, rem_limit, rem_mode; 3484 int combination_has_p2p = 0, combination_has_mgd = 0; 3485 static struct nla_policy 3486 iface_combination_policy[NUM_NL80211_IFACE_COMB] = { 3487 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED }, 3488 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 }, 3489 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG }, 3490 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 }, 3491 [NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 }, 3492 }, 3493 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = { 3494 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED }, 3495 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 }, 3496 }; 3497 3498 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB, 3499 nl_combi, iface_combination_policy); 3500 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] || 3501 !tb_comb[NL80211_IFACE_COMB_MAXNUM] || 3502 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) 3503 return 0; /* broken combination */ 3504 3505 if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS]) 3506 info->capa->flags |= WPA_DRIVER_FLAGS_RADAR; 3507 3508 nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS], 3509 rem_limit) { 3510 err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT, 3511 nl_limit, iface_limit_policy); 3512 if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES]) 3513 return 0; /* broken combination */ 3514 3515 nla_for_each_nested(nl_mode, 3516 tb_limit[NL80211_IFACE_LIMIT_TYPES], 3517 rem_mode) { 3518 int ift = nla_type(nl_mode); 3519 if (ift == NL80211_IFTYPE_P2P_GO || 3520 ift == NL80211_IFTYPE_P2P_CLIENT) 3521 combination_has_p2p = 1; 3522 if (ift == NL80211_IFTYPE_STATION) 3523 combination_has_mgd = 1; 3524 } 3525 if (combination_has_p2p && combination_has_mgd) 3526 break; 3527 } 3528 3529 if (combination_has_p2p && combination_has_mgd) { 3530 unsigned int num_channels = 3531 nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]); 3532 3533 info->p2p_concurrent = 1; 3534 if (info->num_multichan_concurrent < num_channels) 3535 info->num_multichan_concurrent = num_channels; 3536 } 3537 3538 return 0; 3539} 3540 3541 3542static void wiphy_info_iface_comb(struct wiphy_info_data *info, 3543 struct nlattr *tb) 3544{ 3545 struct nlattr *nl_combi; 3546 int rem_combi; 3547 3548 if (tb == NULL) 3549 return; 3550 3551 nla_for_each_nested(nl_combi, tb, rem_combi) { 3552 if (wiphy_info_iface_comb_process(info, nl_combi) > 0) 3553 break; 3554 } 3555} 3556 3557 3558static void wiphy_info_supp_cmds(struct wiphy_info_data *info, 3559 struct nlattr *tb) 3560{ 3561 struct nlattr *nl_cmd; 3562 int i; 3563 3564 if (tb == NULL) 3565 return; 3566 3567 nla_for_each_nested(nl_cmd, tb, i) { 3568 switch (nla_get_u32(nl_cmd)) { 3569 case NL80211_CMD_AUTHENTICATE: 3570 info->auth_supported = 1; 3571 break; 3572 case NL80211_CMD_CONNECT: 3573 info->connect_supported = 1; 3574 break; 3575 case NL80211_CMD_START_SCHED_SCAN: 3576 info->capa->sched_scan_supported = 1; 3577 break; 3578 case NL80211_CMD_PROBE_CLIENT: 3579 info->poll_command_supported = 1; 3580 break; 3581 case NL80211_CMD_CHANNEL_SWITCH: 3582 info->channel_switch_supported = 1; 3583 break; 3584 case NL80211_CMD_SET_QOS_MAP: 3585 info->set_qos_map_supported = 1; 3586 break; 3587 } 3588 } 3589} 3590 3591 3592static void wiphy_info_cipher_suites(struct wiphy_info_data *info, 3593 struct nlattr *tb) 3594{ 3595 int i, num; 3596 u32 *ciphers; 3597 3598 if (tb == NULL) 3599 return; 3600 3601 num = nla_len(tb) / sizeof(u32); 3602 ciphers = nla_data(tb); 3603 for (i = 0; i < num; i++) { 3604 u32 c = ciphers[i]; 3605 3606 wpa_printf(MSG_DEBUG, "nl80211: Supported cipher %02x-%02x-%02x:%d", 3607 c >> 24, (c >> 16) & 0xff, 3608 (c >> 8) & 0xff, c & 0xff); 3609 switch (c) { 3610 case WLAN_CIPHER_SUITE_CCMP_256: 3611 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP_256; 3612 break; 3613 case WLAN_CIPHER_SUITE_GCMP_256: 3614 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP_256; 3615 break; 3616 case WLAN_CIPHER_SUITE_CCMP: 3617 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP; 3618 break; 3619 case WLAN_CIPHER_SUITE_GCMP: 3620 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP; 3621 break; 3622 case WLAN_CIPHER_SUITE_TKIP: 3623 info->capa->enc |= WPA_DRIVER_CAPA_ENC_TKIP; 3624 break; 3625 case WLAN_CIPHER_SUITE_WEP104: 3626 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP104; 3627 break; 3628 case WLAN_CIPHER_SUITE_WEP40: 3629 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP40; 3630 break; 3631 case WLAN_CIPHER_SUITE_AES_CMAC: 3632 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP; 3633 break; 3634 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 3635 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_128; 3636 break; 3637 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 3638 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_256; 3639 break; 3640 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 3641 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_CMAC_256; 3642 break; 3643 case WLAN_CIPHER_SUITE_NO_GROUP_ADDR: 3644 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GTK_NOT_USED; 3645 break; 3646 } 3647 } 3648} 3649 3650 3651static void wiphy_info_max_roc(struct wpa_driver_capa *capa, 3652 struct nlattr *tb) 3653{ 3654 if (tb) 3655 capa->max_remain_on_chan = nla_get_u32(tb); 3656} 3657 3658 3659static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls, 3660 struct nlattr *ext_setup) 3661{ 3662 if (tdls == NULL) 3663 return; 3664 3665 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported"); 3666 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT; 3667 3668 if (ext_setup) { 3669 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup"); 3670 capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP; 3671 } 3672} 3673 3674 3675static void wiphy_info_feature_flags(struct wiphy_info_data *info, 3676 struct nlattr *tb) 3677{ 3678 u32 flags; 3679 struct wpa_driver_capa *capa = info->capa; 3680 3681 if (tb == NULL) 3682 return; 3683 3684 flags = nla_get_u32(tb); 3685 3686 if (flags & NL80211_FEATURE_SK_TX_STATUS) 3687 info->data_tx_status = 1; 3688 3689 if (flags & NL80211_FEATURE_INACTIVITY_TIMER) 3690 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER; 3691 3692 if (flags & NL80211_FEATURE_SAE) 3693 capa->flags |= WPA_DRIVER_FLAGS_SAE; 3694 3695 if (flags & NL80211_FEATURE_NEED_OBSS_SCAN) 3696 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN; 3697 3698 if (flags & NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE) 3699 capa->flags |= WPA_DRIVER_FLAGS_HT_2040_COEX; 3700 3701 if (flags & NL80211_FEATURE_LOW_PRIORITY_SCAN) 3702 info->have_low_prio_scan = 1; 3703} 3704 3705 3706static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa, 3707 struct nlattr *tb) 3708{ 3709 u32 protocols; 3710 3711 if (tb == NULL) 3712 return; 3713 3714 protocols = nla_get_u32(tb); 3715 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP " 3716 "mode"); 3717 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD; 3718 capa->probe_resp_offloads = probe_resp_offload_support(protocols); 3719} 3720 3721 3722static void wiphy_info_wowlan_triggers(struct wpa_driver_capa *capa, 3723 struct nlattr *tb) 3724{ 3725 struct nlattr *triggers[MAX_NL80211_WOWLAN_TRIG + 1]; 3726 3727 if (tb == NULL) 3728 return; 3729 3730 if (nla_parse_nested(triggers, MAX_NL80211_WOWLAN_TRIG, 3731 tb, NULL)) 3732 return; 3733 3734 if (triggers[NL80211_WOWLAN_TRIG_ANY]) 3735 capa->wowlan_triggers.any = 1; 3736 if (triggers[NL80211_WOWLAN_TRIG_DISCONNECT]) 3737 capa->wowlan_triggers.disconnect = 1; 3738 if (triggers[NL80211_WOWLAN_TRIG_MAGIC_PKT]) 3739 capa->wowlan_triggers.magic_pkt = 1; 3740 if (triggers[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) 3741 capa->wowlan_triggers.gtk_rekey_failure = 1; 3742 if (triggers[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) 3743 capa->wowlan_triggers.eap_identity_req = 1; 3744 if (triggers[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) 3745 capa->wowlan_triggers.four_way_handshake = 1; 3746 if (triggers[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) 3747 capa->wowlan_triggers.rfkill_release = 1; 3748} 3749 3750 3751static int wiphy_info_handler(struct nl_msg *msg, void *arg) 3752{ 3753 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3754 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3755 struct wiphy_info_data *info = arg; 3756 struct wpa_driver_capa *capa = info->capa; 3757 struct wpa_driver_nl80211_data *drv = info->drv; 3758 3759 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3760 genlmsg_attrlen(gnlh, 0), NULL); 3761 3762 if (tb[NL80211_ATTR_WIPHY_NAME]) 3763 os_strlcpy(drv->phyname, 3764 nla_get_string(tb[NL80211_ATTR_WIPHY_NAME]), 3765 sizeof(drv->phyname)); 3766 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]) 3767 capa->max_scan_ssids = 3768 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]); 3769 3770 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]) 3771 capa->max_sched_scan_ssids = 3772 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]); 3773 3774 if (tb[NL80211_ATTR_MAX_MATCH_SETS]) 3775 capa->max_match_sets = 3776 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]); 3777 3778 if (tb[NL80211_ATTR_MAC_ACL_MAX]) 3779 capa->max_acl_mac_addrs = 3780 nla_get_u8(tb[NL80211_ATTR_MAC_ACL_MAX]); 3781 3782 wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]); 3783 wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]); 3784 wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]); 3785 wiphy_info_cipher_suites(info, tb[NL80211_ATTR_CIPHER_SUITES]); 3786 3787 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) { 3788 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based " 3789 "off-channel TX"); 3790 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX; 3791 } 3792 3793 if (tb[NL80211_ATTR_ROAM_SUPPORT]) { 3794 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming"); 3795 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION; 3796 } 3797 3798 wiphy_info_max_roc(capa, 3799 tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]); 3800 3801 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD]) 3802 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD; 3803 3804 wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT], 3805 tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]); 3806 3807 if (tb[NL80211_ATTR_DEVICE_AP_SME]) 3808 info->device_ap_sme = 1; 3809 3810 wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]); 3811 wiphy_info_probe_resp_offload(capa, 3812 tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]); 3813 3814 if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] && 3815 drv->extended_capa == NULL) { 3816 drv->extended_capa = 3817 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3818 if (drv->extended_capa) { 3819 os_memcpy(drv->extended_capa, 3820 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 3821 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3822 drv->extended_capa_len = 3823 nla_len(tb[NL80211_ATTR_EXT_CAPA]); 3824 } 3825 drv->extended_capa_mask = 3826 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3827 if (drv->extended_capa_mask) { 3828 os_memcpy(drv->extended_capa_mask, 3829 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 3830 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3831 } else { 3832 os_free(drv->extended_capa); 3833 drv->extended_capa = NULL; 3834 drv->extended_capa_len = 0; 3835 } 3836 } 3837 3838 if (tb[NL80211_ATTR_VENDOR_DATA]) { 3839 struct nlattr *nl; 3840 int rem; 3841 3842 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_DATA], rem) { 3843 struct nl80211_vendor_cmd_info *vinfo; 3844 if (nla_len(nl) != sizeof(*vinfo)) { 3845 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info"); 3846 continue; 3847 } 3848 vinfo = nla_data(nl); 3849 if (vinfo->subcmd == 3850 QCA_NL80211_VENDOR_SUBCMD_DFS_CAPABILITY) 3851 drv->dfs_vendor_cmd_avail = 1; 3852 3853 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor command: vendor_id=0x%x subcmd=%u", 3854 vinfo->vendor_id, vinfo->subcmd); 3855 } 3856 } 3857 3858 if (tb[NL80211_ATTR_VENDOR_EVENTS]) { 3859 struct nlattr *nl; 3860 int rem; 3861 3862 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_EVENTS], rem) { 3863 struct nl80211_vendor_cmd_info *vinfo; 3864 if (nla_len(nl) != sizeof(*vinfo)) { 3865 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info"); 3866 continue; 3867 } 3868 vinfo = nla_data(nl); 3869 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor event: vendor_id=0x%x subcmd=%u", 3870 vinfo->vendor_id, vinfo->subcmd); 3871 } 3872 } 3873 3874 wiphy_info_wowlan_triggers(capa, 3875 tb[NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED]); 3876 3877 if (tb[NL80211_ATTR_MAX_AP_ASSOC_STA]) 3878 capa->max_stations = 3879 nla_get_u32(tb[NL80211_ATTR_MAX_AP_ASSOC_STA]); 3880 3881 return NL_SKIP; 3882} 3883 3884 3885static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv, 3886 struct wiphy_info_data *info) 3887{ 3888 u32 feat; 3889 struct nl_msg *msg; 3890 3891 os_memset(info, 0, sizeof(*info)); 3892 info->capa = &drv->capa; 3893 info->drv = drv; 3894 3895 msg = nlmsg_alloc(); 3896 if (!msg) 3897 return -1; 3898 3899 feat = get_nl80211_protocol_features(drv); 3900 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 3901 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 3902 else 3903 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 3904 3905 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 3906 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 3907 goto nla_put_failure; 3908 3909 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info)) 3910 return -1; 3911 3912 if (info->auth_supported) 3913 drv->capa.flags |= WPA_DRIVER_FLAGS_SME; 3914 else if (!info->connect_supported) { 3915 wpa_printf(MSG_INFO, "nl80211: Driver does not support " 3916 "authentication/association or connect commands"); 3917 info->error = 1; 3918 } 3919 3920 if (info->p2p_go_supported && info->p2p_client_supported) 3921 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE; 3922 if (info->p2p_concurrent) { 3923 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 3924 "interface (driver advertised support)"); 3925 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 3926 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 3927 } 3928 if (info->num_multichan_concurrent > 1) { 3929 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel " 3930 "concurrent (driver advertised support)"); 3931 drv->capa.num_multichan_concurrent = 3932 info->num_multichan_concurrent; 3933 } 3934 3935 /* default to 5000 since early versions of mac80211 don't set it */ 3936 if (!drv->capa.max_remain_on_chan) 3937 drv->capa.max_remain_on_chan = 5000; 3938 3939 if (info->channel_switch_supported) 3940 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_CSA; 3941 3942 return 0; 3943nla_put_failure: 3944 nlmsg_free(msg); 3945 return -1; 3946} 3947 3948 3949static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv) 3950{ 3951 struct wiphy_info_data info; 3952 if (wpa_driver_nl80211_get_info(drv, &info)) 3953 return -1; 3954 3955 if (info.error) 3956 return -1; 3957 3958 drv->has_capability = 1; 3959 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA | 3960 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK | 3961 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 | 3962 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK; 3963 drv->capa.auth = WPA_DRIVER_AUTH_OPEN | 3964 WPA_DRIVER_AUTH_SHARED | 3965 WPA_DRIVER_AUTH_LEAP; 3966 3967 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES; 3968 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE; 3969 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3970 3971 /* 3972 * As all cfg80211 drivers must support cases where the AP interface is 3973 * removed without the knowledge of wpa_supplicant/hostapd, e.g., in 3974 * case that the user space daemon has crashed, they must be able to 3975 * cleanup all stations and key entries in the AP tear down flow. Thus, 3976 * this flag can/should always be set for cfg80211 drivers. 3977 */ 3978 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT; 3979 3980 if (!info.device_ap_sme) { 3981 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS; 3982 3983 /* 3984 * No AP SME is currently assumed to also indicate no AP MLME 3985 * in the driver/firmware. 3986 */ 3987 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME; 3988 } 3989 3990 drv->device_ap_sme = info.device_ap_sme; 3991 drv->poll_command_supported = info.poll_command_supported; 3992 drv->data_tx_status = info.data_tx_status; 3993 if (info.set_qos_map_supported) 3994 drv->capa.flags |= WPA_DRIVER_FLAGS_QOS_MAPPING; 3995 drv->have_low_prio_scan = info.have_low_prio_scan; 3996 3997 /* 3998 * If poll command and tx status are supported, mac80211 is new enough 3999 * to have everything we need to not need monitor interfaces. 4000 */ 4001 drv->use_monitor = !info.poll_command_supported || !info.data_tx_status; 4002 4003 if (drv->device_ap_sme && drv->use_monitor) { 4004 /* 4005 * Non-mac80211 drivers may not support monitor interface. 4006 * Make sure we do not get stuck with incorrect capability here 4007 * by explicitly testing this. 4008 */ 4009 if (!info.monitor_supported) { 4010 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor " 4011 "with device_ap_sme since no monitor mode " 4012 "support detected"); 4013 drv->use_monitor = 0; 4014 } 4015 } 4016 4017 /* 4018 * If we aren't going to use monitor interfaces, but the 4019 * driver doesn't support data TX status, we won't get TX 4020 * status for EAPOL frames. 4021 */ 4022 if (!drv->use_monitor && !info.data_tx_status) 4023 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 4024 4025 return 0; 4026} 4027 4028 4029#ifdef ANDROID 4030static int android_genl_ctrl_resolve(struct nl_handle *handle, 4031 const char *name) 4032{ 4033 /* 4034 * Android ICS has very minimal genl_ctrl_resolve() implementation, so 4035 * need to work around that. 4036 */ 4037 struct nl_cache *cache = NULL; 4038 struct genl_family *nl80211 = NULL; 4039 int id = -1; 4040 4041 if (genl_ctrl_alloc_cache(handle, &cache) < 0) { 4042 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic " 4043 "netlink cache"); 4044 goto fail; 4045 } 4046 4047 nl80211 = genl_ctrl_search_by_name(cache, name); 4048 if (nl80211 == NULL) 4049 goto fail; 4050 4051 id = genl_family_get_id(nl80211); 4052 4053fail: 4054 if (nl80211) 4055 genl_family_put(nl80211); 4056 if (cache) 4057 nl_cache_free(cache); 4058 4059 return id; 4060} 4061#define genl_ctrl_resolve android_genl_ctrl_resolve 4062#endif /* ANDROID */ 4063 4064 4065static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global) 4066{ 4067 int ret; 4068 4069 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 4070 if (global->nl_cb == NULL) { 4071 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " 4072 "callbacks"); 4073 return -1; 4074 } 4075 4076 global->nl = nl_create_handle(global->nl_cb, "nl"); 4077 if (global->nl == NULL) 4078 goto err; 4079 4080 global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211"); 4081 if (global->nl80211_id < 0) { 4082 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not " 4083 "found"); 4084 goto err; 4085 } 4086 4087 global->nl_event = nl_create_handle(global->nl_cb, "event"); 4088 if (global->nl_event == NULL) 4089 goto err; 4090 4091 ret = nl_get_multicast_id(global, "nl80211", "scan"); 4092 if (ret >= 0) 4093 ret = nl_socket_add_membership(global->nl_event, ret); 4094 if (ret < 0) { 4095 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 4096 "membership for scan events: %d (%s)", 4097 ret, strerror(-ret)); 4098 goto err; 4099 } 4100 4101 ret = nl_get_multicast_id(global, "nl80211", "mlme"); 4102 if (ret >= 0) 4103 ret = nl_socket_add_membership(global->nl_event, ret); 4104 if (ret < 0) { 4105 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 4106 "membership for mlme events: %d (%s)", 4107 ret, strerror(-ret)); 4108 goto err; 4109 } 4110 4111 ret = nl_get_multicast_id(global, "nl80211", "regulatory"); 4112 if (ret >= 0) 4113 ret = nl_socket_add_membership(global->nl_event, ret); 4114 if (ret < 0) { 4115 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " 4116 "membership for regulatory events: %d (%s)", 4117 ret, strerror(-ret)); 4118 /* Continue without regulatory events */ 4119 } 4120 4121 ret = nl_get_multicast_id(global, "nl80211", "vendor"); 4122 if (ret >= 0) 4123 ret = nl_socket_add_membership(global->nl_event, ret); 4124 if (ret < 0) { 4125 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " 4126 "membership for vendor events: %d (%s)", 4127 ret, strerror(-ret)); 4128 /* Continue without vendor events */ 4129 } 4130 4131 nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 4132 no_seq_check, NULL); 4133 nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 4134 process_global_event, global); 4135 4136 nl80211_register_eloop_read(&global->nl_event, 4137 wpa_driver_nl80211_event_receive, 4138 global->nl_cb); 4139 4140 return 0; 4141 4142err: 4143 nl_destroy_handles(&global->nl_event); 4144 nl_destroy_handles(&global->nl); 4145 nl_cb_put(global->nl_cb); 4146 global->nl_cb = NULL; 4147 return -1; 4148} 4149 4150 4151static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv) 4152{ 4153 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 4154 if (!drv->nl_cb) { 4155 wpa_printf(MSG_ERROR, "nl80211: Failed to alloc cb struct"); 4156 return -1; 4157 } 4158 4159 nl_cb_set(drv->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 4160 no_seq_check, NULL); 4161 nl_cb_set(drv->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 4162 process_drv_event, drv); 4163 4164 return 0; 4165} 4166 4167 4168static void wpa_driver_nl80211_rfkill_blocked(void *ctx) 4169{ 4170 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked"); 4171 /* 4172 * This may be for any interface; use ifdown event to disable 4173 * interface. 4174 */ 4175} 4176 4177 4178static void wpa_driver_nl80211_rfkill_unblocked(void *ctx) 4179{ 4180 struct wpa_driver_nl80211_data *drv = ctx; 4181 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked"); 4182 if (i802_set_iface_flags(drv->first_bss, 1)) { 4183 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP " 4184 "after rfkill unblock"); 4185 return; 4186 } 4187 /* rtnetlink ifup handler will report interface as enabled */ 4188} 4189 4190 4191static void wpa_driver_nl80211_handle_eapol_tx_status(int sock, 4192 void *eloop_ctx, 4193 void *handle) 4194{ 4195 struct wpa_driver_nl80211_data *drv = eloop_ctx; 4196 u8 data[2048]; 4197 struct msghdr msg; 4198 struct iovec entry; 4199 u8 control[512]; 4200 struct cmsghdr *cmsg; 4201 int res, found_ee = 0, found_wifi = 0, acked = 0; 4202 union wpa_event_data event; 4203 4204 memset(&msg, 0, sizeof(msg)); 4205 msg.msg_iov = &entry; 4206 msg.msg_iovlen = 1; 4207 entry.iov_base = data; 4208 entry.iov_len = sizeof(data); 4209 msg.msg_control = &control; 4210 msg.msg_controllen = sizeof(control); 4211 4212 res = recvmsg(sock, &msg, MSG_ERRQUEUE); 4213 /* if error or not fitting 802.3 header, return */ 4214 if (res < 14) 4215 return; 4216 4217 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) 4218 { 4219 if (cmsg->cmsg_level == SOL_SOCKET && 4220 cmsg->cmsg_type == SCM_WIFI_STATUS) { 4221 int *ack; 4222 4223 found_wifi = 1; 4224 ack = (void *)CMSG_DATA(cmsg); 4225 acked = *ack; 4226 } 4227 4228 if (cmsg->cmsg_level == SOL_PACKET && 4229 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) { 4230 struct sock_extended_err *err = 4231 (struct sock_extended_err *)CMSG_DATA(cmsg); 4232 4233 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS) 4234 found_ee = 1; 4235 } 4236 } 4237 4238 if (!found_ee || !found_wifi) 4239 return; 4240 4241 memset(&event, 0, sizeof(event)); 4242 event.eapol_tx_status.dst = data; 4243 event.eapol_tx_status.data = data + 14; 4244 event.eapol_tx_status.data_len = res - 14; 4245 event.eapol_tx_status.ack = acked; 4246 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event); 4247} 4248 4249 4250static int nl80211_init_bss(struct i802_bss *bss) 4251{ 4252 bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 4253 if (!bss->nl_cb) 4254 return -1; 4255 4256 nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 4257 no_seq_check, NULL); 4258 nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 4259 process_bss_event, bss); 4260 4261 return 0; 4262} 4263 4264 4265static void nl80211_destroy_bss(struct i802_bss *bss) 4266{ 4267 nl_cb_put(bss->nl_cb); 4268 bss->nl_cb = NULL; 4269} 4270 4271 4272static void * wpa_driver_nl80211_drv_init(void *ctx, const char *ifname, 4273 void *global_priv, int hostapd, 4274 const u8 *set_addr) 4275{ 4276 struct wpa_driver_nl80211_data *drv; 4277 struct rfkill_config *rcfg; 4278 struct i802_bss *bss; 4279 4280 if (global_priv == NULL) 4281 return NULL; 4282 drv = os_zalloc(sizeof(*drv)); 4283 if (drv == NULL) 4284 return NULL; 4285 drv->global = global_priv; 4286 drv->ctx = ctx; 4287 drv->hostapd = !!hostapd; 4288 drv->eapol_sock = -1; 4289 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int); 4290 drv->if_indices = drv->default_if_indices; 4291 4292 drv->first_bss = os_zalloc(sizeof(*drv->first_bss)); 4293 if (!drv->first_bss) { 4294 os_free(drv); 4295 return NULL; 4296 } 4297 bss = drv->first_bss; 4298 bss->drv = drv; 4299 bss->ctx = ctx; 4300 4301 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname)); 4302 drv->monitor_ifidx = -1; 4303 drv->monitor_sock = -1; 4304 drv->eapol_tx_sock = -1; 4305 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 4306 4307 if (wpa_driver_nl80211_init_nl(drv)) { 4308 os_free(drv); 4309 return NULL; 4310 } 4311 4312 if (nl80211_init_bss(bss)) 4313 goto failed; 4314 4315 rcfg = os_zalloc(sizeof(*rcfg)); 4316 if (rcfg == NULL) 4317 goto failed; 4318 rcfg->ctx = drv; 4319 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname)); 4320 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked; 4321 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked; 4322 drv->rfkill = rfkill_init(rcfg); 4323 if (drv->rfkill == NULL) { 4324 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available"); 4325 os_free(rcfg); 4326 } 4327 4328 if (linux_iface_up(drv->global->ioctl_sock, ifname) > 0) 4329 drv->start_iface_up = 1; 4330 4331 if (wpa_driver_nl80211_finish_drv_init(drv, set_addr, 1)) 4332 goto failed; 4333 4334 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0); 4335 if (drv->eapol_tx_sock < 0) 4336 goto failed; 4337 4338 if (drv->data_tx_status) { 4339 int enabled = 1; 4340 4341 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS, 4342 &enabled, sizeof(enabled)) < 0) { 4343 wpa_printf(MSG_DEBUG, 4344 "nl80211: wifi status sockopt failed\n"); 4345 drv->data_tx_status = 0; 4346 if (!drv->use_monitor) 4347 drv->capa.flags &= 4348 ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 4349 } else { 4350 eloop_register_read_sock(drv->eapol_tx_sock, 4351 wpa_driver_nl80211_handle_eapol_tx_status, 4352 drv, NULL); 4353 } 4354 } 4355 4356 if (drv->global) { 4357 dl_list_add(&drv->global->interfaces, &drv->list); 4358 drv->in_interface_list = 1; 4359 } 4360 4361 return bss; 4362 4363failed: 4364 wpa_driver_nl80211_deinit(bss); 4365 return NULL; 4366} 4367 4368 4369/** 4370 * wpa_driver_nl80211_init - Initialize nl80211 driver interface 4371 * @ctx: context to be used when calling wpa_supplicant functions, 4372 * e.g., wpa_supplicant_event() 4373 * @ifname: interface name, e.g., wlan0 4374 * @global_priv: private driver global data from global_init() 4375 * Returns: Pointer to private data, %NULL on failure 4376 */ 4377static void * wpa_driver_nl80211_init(void *ctx, const char *ifname, 4378 void *global_priv) 4379{ 4380 return wpa_driver_nl80211_drv_init(ctx, ifname, global_priv, 0, NULL); 4381} 4382 4383 4384static int nl80211_register_frame(struct i802_bss *bss, 4385 struct nl_handle *nl_handle, 4386 u16 type, const u8 *match, size_t match_len) 4387{ 4388 struct wpa_driver_nl80211_data *drv = bss->drv; 4389 struct nl_msg *msg; 4390 int ret = -1; 4391 char buf[30]; 4392 4393 msg = nlmsg_alloc(); 4394 if (!msg) 4395 return -1; 4396 4397 buf[0] = '\0'; 4398 wpa_snprintf_hex(buf, sizeof(buf), match, match_len); 4399 wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x (%s) nl_handle=%p match=%s", 4400 type, fc2str(type), nl_handle, buf); 4401 4402 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION); 4403 4404 if (nl80211_set_iface_id(msg, bss) < 0) 4405 goto nla_put_failure; 4406 4407 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type); 4408 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match); 4409 4410 ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL); 4411 msg = NULL; 4412 if (ret) { 4413 wpa_printf(MSG_DEBUG, "nl80211: Register frame command " 4414 "failed (type=%u): ret=%d (%s)", 4415 type, ret, strerror(-ret)); 4416 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", 4417 match, match_len); 4418 goto nla_put_failure; 4419 } 4420 ret = 0; 4421nla_put_failure: 4422 nlmsg_free(msg); 4423 return ret; 4424} 4425 4426 4427static int nl80211_alloc_mgmt_handle(struct i802_bss *bss) 4428{ 4429 struct wpa_driver_nl80211_data *drv = bss->drv; 4430 4431 if (bss->nl_mgmt) { 4432 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting " 4433 "already on! (nl_mgmt=%p)", bss->nl_mgmt); 4434 return -1; 4435 } 4436 4437 bss->nl_mgmt = nl_create_handle(drv->nl_cb, "mgmt"); 4438 if (bss->nl_mgmt == NULL) 4439 return -1; 4440 4441 return 0; 4442} 4443 4444 4445static void nl80211_mgmt_handle_register_eloop(struct i802_bss *bss) 4446{ 4447 nl80211_register_eloop_read(&bss->nl_mgmt, 4448 wpa_driver_nl80211_event_receive, 4449 bss->nl_cb); 4450} 4451 4452 4453static int nl80211_register_action_frame(struct i802_bss *bss, 4454 const u8 *match, size_t match_len) 4455{ 4456 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4); 4457 return nl80211_register_frame(bss, bss->nl_mgmt, 4458 type, match, match_len); 4459} 4460 4461 4462static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss) 4463{ 4464 struct wpa_driver_nl80211_data *drv = bss->drv; 4465 int ret = 0; 4466 4467 if (nl80211_alloc_mgmt_handle(bss)) 4468 return -1; 4469 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP " 4470 "handle %p", bss->nl_mgmt); 4471 4472 if (drv->nlmode == NL80211_IFTYPE_ADHOC) { 4473 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_AUTH << 4); 4474 4475 /* register for any AUTH message */ 4476 nl80211_register_frame(bss, bss->nl_mgmt, type, NULL, 0); 4477 } 4478 4479#ifdef CONFIG_INTERWORKING 4480 /* QoS Map Configure */ 4481 if (nl80211_register_action_frame(bss, (u8 *) "\x01\x04", 2) < 0) 4482 ret = -1; 4483#endif /* CONFIG_INTERWORKING */ 4484#if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING) 4485 /* GAS Initial Request */ 4486 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0) 4487 ret = -1; 4488 /* GAS Initial Response */ 4489 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0) 4490 ret = -1; 4491 /* GAS Comeback Request */ 4492 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0) 4493 ret = -1; 4494 /* GAS Comeback Response */ 4495 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0) 4496 ret = -1; 4497 /* Protected GAS Initial Request */ 4498 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0a", 2) < 0) 4499 ret = -1; 4500 /* Protected GAS Initial Response */ 4501 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0b", 2) < 0) 4502 ret = -1; 4503 /* Protected GAS Comeback Request */ 4504 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0c", 2) < 0) 4505 ret = -1; 4506 /* Protected GAS Comeback Response */ 4507 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0d", 2) < 0) 4508 ret = -1; 4509#endif /* CONFIG_P2P || CONFIG_INTERWORKING */ 4510#ifdef CONFIG_P2P 4511 /* P2P Public Action */ 4512 if (nl80211_register_action_frame(bss, 4513 (u8 *) "\x04\x09\x50\x6f\x9a\x09", 4514 6) < 0) 4515 ret = -1; 4516 /* P2P Action */ 4517 if (nl80211_register_action_frame(bss, 4518 (u8 *) "\x7f\x50\x6f\x9a\x09", 4519 5) < 0) 4520 ret = -1; 4521#endif /* CONFIG_P2P */ 4522#ifdef CONFIG_IEEE80211W 4523 /* SA Query Response */ 4524 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0) 4525 ret = -1; 4526#endif /* CONFIG_IEEE80211W */ 4527#ifdef CONFIG_TDLS 4528 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) { 4529 /* TDLS Discovery Response */ 4530 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) < 4531 0) 4532 ret = -1; 4533 } 4534#endif /* CONFIG_TDLS */ 4535 4536 /* FT Action frames */ 4537 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0) 4538 ret = -1; 4539 else 4540 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT | 4541 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK; 4542 4543 /* WNM - BSS Transition Management Request */ 4544 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0) 4545 ret = -1; 4546 /* WNM-Sleep Mode Response */ 4547 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x11", 2) < 0) 4548 ret = -1; 4549 4550#ifdef CONFIG_HS20 4551 /* WNM-Notification */ 4552 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x1a", 2) < 0) 4553 return -1; 4554#endif /* CONFIG_HS20 */ 4555 4556 nl80211_mgmt_handle_register_eloop(bss); 4557 4558 return ret; 4559} 4560 4561 4562static int nl80211_register_spurious_class3(struct i802_bss *bss) 4563{ 4564 struct wpa_driver_nl80211_data *drv = bss->drv; 4565 struct nl_msg *msg; 4566 int ret = -1; 4567 4568 msg = nlmsg_alloc(); 4569 if (!msg) 4570 return -1; 4571 4572 nl80211_cmd(drv, msg, 0, NL80211_CMD_UNEXPECTED_FRAME); 4573 4574 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 4575 4576 ret = send_and_recv(drv->global, bss->nl_mgmt, msg, NULL, NULL); 4577 msg = NULL; 4578 if (ret) { 4579 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 " 4580 "failed: ret=%d (%s)", 4581 ret, strerror(-ret)); 4582 goto nla_put_failure; 4583 } 4584 ret = 0; 4585nla_put_failure: 4586 nlmsg_free(msg); 4587 return ret; 4588} 4589 4590 4591static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss) 4592{ 4593 static const int stypes[] = { 4594 WLAN_FC_STYPE_AUTH, 4595 WLAN_FC_STYPE_ASSOC_REQ, 4596 WLAN_FC_STYPE_REASSOC_REQ, 4597 WLAN_FC_STYPE_DISASSOC, 4598 WLAN_FC_STYPE_DEAUTH, 4599 WLAN_FC_STYPE_ACTION, 4600 WLAN_FC_STYPE_PROBE_REQ, 4601/* Beacon doesn't work as mac80211 doesn't currently allow 4602 * it, but it wouldn't really be the right thing anyway as 4603 * it isn't per interface ... maybe just dump the scan 4604 * results periodically for OLBC? 4605 */ 4606 /* WLAN_FC_STYPE_BEACON, */ 4607 }; 4608 unsigned int i; 4609 4610 if (nl80211_alloc_mgmt_handle(bss)) 4611 return -1; 4612 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 4613 "handle %p", bss->nl_mgmt); 4614 4615 for (i = 0; i < ARRAY_SIZE(stypes); i++) { 4616 if (nl80211_register_frame(bss, bss->nl_mgmt, 4617 (WLAN_FC_TYPE_MGMT << 2) | 4618 (stypes[i] << 4), 4619 NULL, 0) < 0) { 4620 goto out_err; 4621 } 4622 } 4623 4624 if (nl80211_register_spurious_class3(bss)) 4625 goto out_err; 4626 4627 if (nl80211_get_wiphy_data_ap(bss) == NULL) 4628 goto out_err; 4629 4630 nl80211_mgmt_handle_register_eloop(bss); 4631 return 0; 4632 4633out_err: 4634 nl_destroy_handles(&bss->nl_mgmt); 4635 return -1; 4636} 4637 4638 4639static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss) 4640{ 4641 if (nl80211_alloc_mgmt_handle(bss)) 4642 return -1; 4643 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 4644 "handle %p (device SME)", bss->nl_mgmt); 4645 4646 if (nl80211_register_frame(bss, bss->nl_mgmt, 4647 (WLAN_FC_TYPE_MGMT << 2) | 4648 (WLAN_FC_STYPE_ACTION << 4), 4649 NULL, 0) < 0) 4650 goto out_err; 4651 4652 nl80211_mgmt_handle_register_eloop(bss); 4653 return 0; 4654 4655out_err: 4656 nl_destroy_handles(&bss->nl_mgmt); 4657 return -1; 4658} 4659 4660 4661static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason) 4662{ 4663 if (bss->nl_mgmt == NULL) 4664 return; 4665 wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p " 4666 "(%s)", bss->nl_mgmt, reason); 4667 nl80211_destroy_eloop_handle(&bss->nl_mgmt); 4668 4669 nl80211_put_wiphy_data_ap(bss); 4670} 4671 4672 4673static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx) 4674{ 4675 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL); 4676} 4677 4678 4679static void nl80211_del_p2pdev(struct i802_bss *bss) 4680{ 4681 struct wpa_driver_nl80211_data *drv = bss->drv; 4682 struct nl_msg *msg; 4683 int ret; 4684 4685 msg = nlmsg_alloc(); 4686 if (!msg) 4687 return; 4688 4689 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 4690 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 4691 4692 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4693 msg = NULL; 4694 4695 wpa_printf(MSG_DEBUG, "nl80211: Delete P2P Device %s (0x%llx): %s", 4696 bss->ifname, (long long unsigned int) bss->wdev_id, 4697 strerror(-ret)); 4698 4699nla_put_failure: 4700 nlmsg_free(msg); 4701} 4702 4703 4704static int nl80211_set_p2pdev(struct i802_bss *bss, int start) 4705{ 4706 struct wpa_driver_nl80211_data *drv = bss->drv; 4707 struct nl_msg *msg; 4708 int ret = -1; 4709 4710 msg = nlmsg_alloc(); 4711 if (!msg) 4712 return -1; 4713 4714 if (start) 4715 nl80211_cmd(drv, msg, 0, NL80211_CMD_START_P2P_DEVICE); 4716 else 4717 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_P2P_DEVICE); 4718 4719 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 4720 4721 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4722 msg = NULL; 4723 4724 wpa_printf(MSG_DEBUG, "nl80211: %s P2P Device %s (0x%llx): %s", 4725 start ? "Start" : "Stop", 4726 bss->ifname, (long long unsigned int) bss->wdev_id, 4727 strerror(-ret)); 4728 4729nla_put_failure: 4730 nlmsg_free(msg); 4731 return ret; 4732} 4733 4734 4735static int i802_set_iface_flags(struct i802_bss *bss, int up) 4736{ 4737 enum nl80211_iftype nlmode; 4738 4739 nlmode = nl80211_get_ifmode(bss); 4740 if (nlmode != NL80211_IFTYPE_P2P_DEVICE) { 4741 return linux_set_iface_flags(bss->drv->global->ioctl_sock, 4742 bss->ifname, up); 4743 } 4744 4745 /* P2P Device has start/stop which is equivalent */ 4746 return nl80211_set_p2pdev(bss, up); 4747} 4748 4749 4750static int 4751wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv, 4752 const u8 *set_addr, int first) 4753{ 4754 struct i802_bss *bss = drv->first_bss; 4755 int send_rfkill_event = 0; 4756 enum nl80211_iftype nlmode; 4757 4758 drv->ifindex = if_nametoindex(bss->ifname); 4759 bss->ifindex = drv->ifindex; 4760 bss->wdev_id = drv->global->if_add_wdevid; 4761 bss->wdev_id_set = drv->global->if_add_wdevid_set; 4762 4763 bss->if_dynamic = drv->ifindex == drv->global->if_add_ifindex; 4764 bss->if_dynamic = bss->if_dynamic || drv->global->if_add_wdevid_set; 4765 drv->global->if_add_wdevid_set = 0; 4766 4767 if (!bss->if_dynamic && nl80211_get_ifmode(bss) == NL80211_IFTYPE_AP) 4768 bss->static_ap = 1; 4769 4770 if (wpa_driver_nl80211_capa(drv)) 4771 return -1; 4772 4773 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s", 4774 bss->ifname, drv->phyname); 4775 4776 if (set_addr && 4777 (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0) || 4778 linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 4779 set_addr))) 4780 return -1; 4781 4782 if (first && nl80211_get_ifmode(bss) == NL80211_IFTYPE_AP) 4783 drv->start_mode_ap = 1; 4784 4785 if (drv->hostapd || bss->static_ap) 4786 nlmode = NL80211_IFTYPE_AP; 4787 else if (bss->if_dynamic) 4788 nlmode = nl80211_get_ifmode(bss); 4789 else 4790 nlmode = NL80211_IFTYPE_STATION; 4791 4792 if (wpa_driver_nl80211_set_mode(bss, nlmode) < 0) { 4793 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver mode"); 4794 return -1; 4795 } 4796 4797 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) 4798 nl80211_get_macaddr(bss); 4799 4800 if (!rfkill_is_blocked(drv->rfkill)) { 4801 int ret = i802_set_iface_flags(bss, 1); 4802 if (ret) { 4803 wpa_printf(MSG_ERROR, "nl80211: Could not set " 4804 "interface '%s' UP", bss->ifname); 4805 return ret; 4806 } 4807 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) 4808 return ret; 4809 } else { 4810 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable " 4811 "interface '%s' due to rfkill", bss->ifname); 4812 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) 4813 return 0; 4814 drv->if_disabled = 1; 4815 send_rfkill_event = 1; 4816 } 4817 4818 if (!drv->hostapd) 4819 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 4820 1, IF_OPER_DORMANT); 4821 4822 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 4823 bss->addr)) 4824 return -1; 4825 4826 if (send_rfkill_event) { 4827 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill, 4828 drv, drv->ctx); 4829 } 4830 4831 return 0; 4832} 4833 4834 4835static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv) 4836{ 4837 struct nl_msg *msg; 4838 4839 msg = nlmsg_alloc(); 4840 if (!msg) 4841 return -ENOMEM; 4842 4843 wpa_printf(MSG_DEBUG, "nl80211: Remove beacon (ifindex=%d)", 4844 drv->ifindex); 4845 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON); 4846 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4847 4848 return send_and_recv_msgs(drv, msg, NULL, NULL); 4849 nla_put_failure: 4850 nlmsg_free(msg); 4851 return -ENOBUFS; 4852} 4853 4854 4855/** 4856 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface 4857 * @bss: Pointer to private nl80211 data from wpa_driver_nl80211_init() 4858 * 4859 * Shut down driver interface and processing of driver events. Free 4860 * private data buffer if one was allocated in wpa_driver_nl80211_init(). 4861 */ 4862static void wpa_driver_nl80211_deinit(struct i802_bss *bss) 4863{ 4864 struct wpa_driver_nl80211_data *drv = bss->drv; 4865 4866 bss->in_deinit = 1; 4867 if (drv->data_tx_status) 4868 eloop_unregister_read_sock(drv->eapol_tx_sock); 4869 if (drv->eapol_tx_sock >= 0) 4870 close(drv->eapol_tx_sock); 4871 4872 if (bss->nl_preq) 4873 wpa_driver_nl80211_probe_req_report(bss, 0); 4874 if (bss->added_if_into_bridge) { 4875 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 4876 bss->ifname) < 0) 4877 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 4878 "interface %s from bridge %s: %s", 4879 bss->ifname, bss->brname, strerror(errno)); 4880 } 4881 if (bss->added_bridge) { 4882 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 4883 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 4884 "bridge %s: %s", 4885 bss->brname, strerror(errno)); 4886 } 4887 4888 nl80211_remove_monitor_interface(drv); 4889 4890 if (is_ap_interface(drv->nlmode)) 4891 wpa_driver_nl80211_del_beacon(drv); 4892 4893 if (drv->eapol_sock >= 0) { 4894 eloop_unregister_read_sock(drv->eapol_sock); 4895 close(drv->eapol_sock); 4896 } 4897 4898 if (drv->if_indices != drv->default_if_indices) 4899 os_free(drv->if_indices); 4900 4901 if (drv->disabled_11b_rates) 4902 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 4903 4904 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0, 4905 IF_OPER_UP); 4906 eloop_cancel_timeout(wpa_driver_nl80211_send_rfkill, drv, drv->ctx); 4907 rfkill_deinit(drv->rfkill); 4908 4909 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 4910 4911 if (!drv->start_iface_up) 4912 (void) i802_set_iface_flags(bss, 0); 4913 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) { 4914 if (!drv->hostapd || !drv->start_mode_ap) 4915 wpa_driver_nl80211_set_mode(bss, 4916 NL80211_IFTYPE_STATION); 4917 nl80211_mgmt_unsubscribe(bss, "deinit"); 4918 } else { 4919 nl80211_mgmt_unsubscribe(bss, "deinit"); 4920 nl80211_del_p2pdev(bss); 4921 } 4922 nl_cb_put(drv->nl_cb); 4923 4924 nl80211_destroy_bss(drv->first_bss); 4925 4926 os_free(drv->filter_ssids); 4927 4928 os_free(drv->auth_ie); 4929 4930 if (drv->in_interface_list) 4931 dl_list_del(&drv->list); 4932 4933 os_free(drv->extended_capa); 4934 os_free(drv->extended_capa_mask); 4935 os_free(drv->first_bss); 4936 os_free(drv); 4937} 4938 4939 4940/** 4941 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion 4942 * @eloop_ctx: Driver private data 4943 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init() 4944 * 4945 * This function can be used as registered timeout when starting a scan to 4946 * generate a scan completed event if the driver does not report this. 4947 */ 4948static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx) 4949{ 4950 struct wpa_driver_nl80211_data *drv = eloop_ctx; 4951 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) { 4952 wpa_driver_nl80211_set_mode(drv->first_bss, 4953 drv->ap_scan_as_station); 4954 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 4955 } 4956 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results"); 4957 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL); 4958} 4959 4960 4961static struct nl_msg * 4962nl80211_scan_common(struct wpa_driver_nl80211_data *drv, u8 cmd, 4963 struct wpa_driver_scan_params *params, u64 *wdev_id) 4964{ 4965 struct nl_msg *msg; 4966 size_t i; 4967 u32 scan_flags = 0; 4968 4969 msg = nlmsg_alloc(); 4970 if (!msg) 4971 return NULL; 4972 4973 nl80211_cmd(drv, msg, 0, cmd); 4974 4975 if (!wdev_id) 4976 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4977 else 4978 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, *wdev_id); 4979 4980 if (params->num_ssids) { 4981 struct nlattr *ssids; 4982 4983 ssids = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); 4984 if (ssids == NULL) 4985 goto fail; 4986 for (i = 0; i < params->num_ssids; i++) { 4987 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID", 4988 params->ssids[i].ssid, 4989 params->ssids[i].ssid_len); 4990 if (nla_put(msg, i + 1, params->ssids[i].ssid_len, 4991 params->ssids[i].ssid) < 0) 4992 goto fail; 4993 } 4994 nla_nest_end(msg, ssids); 4995 } 4996 4997 if (params->extra_ies) { 4998 wpa_hexdump(MSG_MSGDUMP, "nl80211: Scan extra IEs", 4999 params->extra_ies, params->extra_ies_len); 5000 if (nla_put(msg, NL80211_ATTR_IE, params->extra_ies_len, 5001 params->extra_ies) < 0) 5002 goto fail; 5003 } 5004 5005 if (params->freqs) { 5006 struct nlattr *freqs; 5007 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); 5008 if (freqs == NULL) 5009 goto fail; 5010 for (i = 0; params->freqs[i]; i++) { 5011 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u " 5012 "MHz", params->freqs[i]); 5013 if (nla_put_u32(msg, i + 1, params->freqs[i]) < 0) 5014 goto fail; 5015 } 5016 nla_nest_end(msg, freqs); 5017 } 5018 5019 os_free(drv->filter_ssids); 5020 drv->filter_ssids = params->filter_ssids; 5021 params->filter_ssids = NULL; 5022 drv->num_filter_ssids = params->num_filter_ssids; 5023 5024 if (params->only_new_results) { 5025 wpa_printf(MSG_DEBUG, "nl80211: Add NL80211_SCAN_FLAG_FLUSH"); 5026 scan_flags |= NL80211_SCAN_FLAG_FLUSH; 5027 } 5028 5029 if (params->low_priority && drv->have_low_prio_scan) { 5030 wpa_printf(MSG_DEBUG, 5031 "nl80211: Add NL80211_SCAN_FLAG_LOW_PRIORITY"); 5032 scan_flags |= NL80211_SCAN_FLAG_LOW_PRIORITY; 5033 } 5034 5035 if (scan_flags) 5036 NLA_PUT_U32(msg, NL80211_ATTR_SCAN_FLAGS, scan_flags); 5037 5038 return msg; 5039 5040fail: 5041nla_put_failure: 5042 nlmsg_free(msg); 5043 return NULL; 5044} 5045 5046 5047/** 5048 * wpa_driver_nl80211_scan - Request the driver to initiate scan 5049 * @bss: Pointer to private driver data from wpa_driver_nl80211_init() 5050 * @params: Scan parameters 5051 * Returns: 0 on success, -1 on failure 5052 */ 5053static int wpa_driver_nl80211_scan(struct i802_bss *bss, 5054 struct wpa_driver_scan_params *params) 5055{ 5056 struct wpa_driver_nl80211_data *drv = bss->drv; 5057 int ret = -1, timeout; 5058 struct nl_msg *msg = NULL; 5059 5060 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: scan request"); 5061 drv->scan_for_auth = 0; 5062 5063 msg = nl80211_scan_common(drv, NL80211_CMD_TRIGGER_SCAN, params, 5064 bss->wdev_id_set ? &bss->wdev_id : NULL); 5065 if (!msg) 5066 return -1; 5067 5068 if (params->p2p_probe) { 5069 struct nlattr *rates; 5070 5071 wpa_printf(MSG_DEBUG, "nl80211: P2P probe - mask SuppRates"); 5072 5073 rates = nla_nest_start(msg, NL80211_ATTR_SCAN_SUPP_RATES); 5074 if (rates == NULL) 5075 goto nla_put_failure; 5076 5077 /* 5078 * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates 5079 * by masking out everything else apart from the OFDM rates 6, 5080 * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz 5081 * rates are left enabled. 5082 */ 5083 NLA_PUT(msg, NL80211_BAND_2GHZ, 8, 5084 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 5085 nla_nest_end(msg, rates); 5086 5087 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 5088 } 5089 5090 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5091 msg = NULL; 5092 if (ret) { 5093 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d " 5094 "(%s)", ret, strerror(-ret)); 5095 if (drv->hostapd && is_ap_interface(drv->nlmode)) { 5096 enum nl80211_iftype old_mode = drv->nlmode; 5097 5098 /* 5099 * mac80211 does not allow scan requests in AP mode, so 5100 * try to do this in station mode. 5101 */ 5102 if (wpa_driver_nl80211_set_mode( 5103 bss, NL80211_IFTYPE_STATION)) 5104 goto nla_put_failure; 5105 5106 if (wpa_driver_nl80211_scan(bss, params)) { 5107 wpa_driver_nl80211_set_mode(bss, drv->nlmode); 5108 goto nla_put_failure; 5109 } 5110 5111 /* Restore AP mode when processing scan results */ 5112 drv->ap_scan_as_station = old_mode; 5113 ret = 0; 5114 } else 5115 goto nla_put_failure; 5116 } 5117 5118 drv->scan_state = SCAN_REQUESTED; 5119 /* Not all drivers generate "scan completed" wireless event, so try to 5120 * read results after a timeout. */ 5121 timeout = 10; 5122 if (drv->scan_complete_events) { 5123 /* 5124 * The driver seems to deliver events to notify when scan is 5125 * complete, so use longer timeout to avoid race conditions 5126 * with scanning and following association request. 5127 */ 5128 timeout = 30; 5129 } 5130 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d " 5131 "seconds", ret, timeout); 5132 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 5133 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout, 5134 drv, drv->ctx); 5135 5136nla_put_failure: 5137 nlmsg_free(msg); 5138 return ret; 5139} 5140 5141 5142/** 5143 * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan 5144 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 5145 * @params: Scan parameters 5146 * @interval: Interval between scan cycles in milliseconds 5147 * Returns: 0 on success, -1 on failure or if not supported 5148 */ 5149static int wpa_driver_nl80211_sched_scan(void *priv, 5150 struct wpa_driver_scan_params *params, 5151 u32 interval) 5152{ 5153 struct i802_bss *bss = priv; 5154 struct wpa_driver_nl80211_data *drv = bss->drv; 5155 int ret = -1; 5156 struct nl_msg *msg; 5157 size_t i; 5158 5159 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: sched_scan request"); 5160 5161#ifdef ANDROID 5162 if (!drv->capa.sched_scan_supported) 5163 return android_pno_start(bss, params); 5164#endif /* ANDROID */ 5165 5166 msg = nl80211_scan_common(drv, NL80211_CMD_START_SCHED_SCAN, params, 5167 bss->wdev_id_set ? &bss->wdev_id : NULL); 5168 if (!msg) 5169 goto nla_put_failure; 5170 5171 NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval); 5172 5173 if ((drv->num_filter_ssids && 5174 (int) drv->num_filter_ssids <= drv->capa.max_match_sets) || 5175 params->filter_rssi) { 5176 struct nlattr *match_sets; 5177 match_sets = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH); 5178 if (match_sets == NULL) 5179 goto nla_put_failure; 5180 5181 for (i = 0; i < drv->num_filter_ssids; i++) { 5182 struct nlattr *match_set_ssid; 5183 wpa_hexdump_ascii(MSG_MSGDUMP, 5184 "nl80211: Sched scan filter SSID", 5185 drv->filter_ssids[i].ssid, 5186 drv->filter_ssids[i].ssid_len); 5187 5188 match_set_ssid = nla_nest_start(msg, i + 1); 5189 if (match_set_ssid == NULL) 5190 goto nla_put_failure; 5191 NLA_PUT(msg, NL80211_ATTR_SCHED_SCAN_MATCH_SSID, 5192 drv->filter_ssids[i].ssid_len, 5193 drv->filter_ssids[i].ssid); 5194 if (params->filter_rssi) 5195 NLA_PUT_U32(msg, 5196 NL80211_SCHED_SCAN_MATCH_ATTR_RSSI, 5197 params->filter_rssi); 5198 5199 nla_nest_end(msg, match_set_ssid); 5200 } 5201 5202 /* 5203 * Due to backward compatibility code, newer kernels treat this 5204 * matchset (with only an RSSI filter) as the default for all 5205 * other matchsets, unless it's the only one, in which case the 5206 * matchset will actually allow all SSIDs above the RSSI. 5207 */ 5208 if (params->filter_rssi) { 5209 struct nlattr *match_set_rssi; 5210 match_set_rssi = nla_nest_start(msg, 0); 5211 if (match_set_rssi == NULL) 5212 goto nla_put_failure; 5213 NLA_PUT_U32(msg, NL80211_SCHED_SCAN_MATCH_ATTR_RSSI, 5214 params->filter_rssi); 5215 wpa_printf(MSG_MSGDUMP, 5216 "nl80211: Sched scan RSSI filter %d dBm", 5217 params->filter_rssi); 5218 nla_nest_end(msg, match_set_rssi); 5219 } 5220 5221 nla_nest_end(msg, match_sets); 5222 } 5223 5224 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5225 5226 /* TODO: if we get an error here, we should fall back to normal scan */ 5227 5228 msg = NULL; 5229 if (ret) { 5230 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: " 5231 "ret=%d (%s)", ret, strerror(-ret)); 5232 goto nla_put_failure; 5233 } 5234 5235 wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - " 5236 "scan interval %d msec", ret, interval); 5237 5238nla_put_failure: 5239 nlmsg_free(msg); 5240 return ret; 5241} 5242 5243 5244/** 5245 * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan 5246 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 5247 * Returns: 0 on success, -1 on failure or if not supported 5248 */ 5249static int wpa_driver_nl80211_stop_sched_scan(void *priv) 5250{ 5251 struct i802_bss *bss = priv; 5252 struct wpa_driver_nl80211_data *drv = bss->drv; 5253 int ret = 0; 5254 struct nl_msg *msg; 5255 5256#ifdef ANDROID 5257 if (!drv->capa.sched_scan_supported) 5258 return android_pno_stop(bss); 5259#endif /* ANDROID */ 5260 5261 msg = nlmsg_alloc(); 5262 if (!msg) 5263 return -1; 5264 5265 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN); 5266 5267 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5268 5269 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5270 msg = NULL; 5271 if (ret) { 5272 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: " 5273 "ret=%d (%s)", ret, strerror(-ret)); 5274 goto nla_put_failure; 5275 } 5276 5277 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret); 5278 5279nla_put_failure: 5280 nlmsg_free(msg); 5281 return ret; 5282} 5283 5284 5285static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie) 5286{ 5287 const u8 *end, *pos; 5288 5289 if (ies == NULL) 5290 return NULL; 5291 5292 pos = ies; 5293 end = ies + ies_len; 5294 5295 while (pos + 1 < end) { 5296 if (pos + 2 + pos[1] > end) 5297 break; 5298 if (pos[0] == ie) 5299 return pos; 5300 pos += 2 + pos[1]; 5301 } 5302 5303 return NULL; 5304} 5305 5306 5307static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv, 5308 const u8 *ie, size_t ie_len) 5309{ 5310 const u8 *ssid; 5311 size_t i; 5312 5313 if (drv->filter_ssids == NULL) 5314 return 0; 5315 5316 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID); 5317 if (ssid == NULL) 5318 return 1; 5319 5320 for (i = 0; i < drv->num_filter_ssids; i++) { 5321 if (ssid[1] == drv->filter_ssids[i].ssid_len && 5322 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) == 5323 0) 5324 return 0; 5325 } 5326 5327 return 1; 5328} 5329 5330 5331static int bss_info_handler(struct nl_msg *msg, void *arg) 5332{ 5333 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 5334 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 5335 struct nlattr *bss[NL80211_BSS_MAX + 1]; 5336 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = { 5337 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC }, 5338 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 }, 5339 [NL80211_BSS_TSF] = { .type = NLA_U64 }, 5340 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 }, 5341 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 }, 5342 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC }, 5343 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 }, 5344 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 }, 5345 [NL80211_BSS_STATUS] = { .type = NLA_U32 }, 5346 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 }, 5347 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC }, 5348 }; 5349 struct nl80211_bss_info_arg *_arg = arg; 5350 struct wpa_scan_results *res = _arg->res; 5351 struct wpa_scan_res **tmp; 5352 struct wpa_scan_res *r; 5353 const u8 *ie, *beacon_ie; 5354 size_t ie_len, beacon_ie_len; 5355 u8 *pos; 5356 size_t i; 5357 5358 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 5359 genlmsg_attrlen(gnlh, 0), NULL); 5360 if (!tb[NL80211_ATTR_BSS]) 5361 return NL_SKIP; 5362 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS], 5363 bss_policy)) 5364 return NL_SKIP; 5365 if (bss[NL80211_BSS_STATUS]) { 5366 enum nl80211_bss_status status; 5367 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 5368 if (status == NL80211_BSS_STATUS_ASSOCIATED && 5369 bss[NL80211_BSS_FREQUENCY]) { 5370 _arg->assoc_freq = 5371 nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 5372 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz", 5373 _arg->assoc_freq); 5374 } 5375 if (status == NL80211_BSS_STATUS_IBSS_JOINED && 5376 bss[NL80211_BSS_FREQUENCY]) { 5377 _arg->ibss_freq = 5378 nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 5379 wpa_printf(MSG_DEBUG, "nl80211: IBSS-joined on %u MHz", 5380 _arg->ibss_freq); 5381 } 5382 if (status == NL80211_BSS_STATUS_ASSOCIATED && 5383 bss[NL80211_BSS_BSSID]) { 5384 os_memcpy(_arg->assoc_bssid, 5385 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN); 5386 wpa_printf(MSG_DEBUG, "nl80211: Associated with " 5387 MACSTR, MAC2STR(_arg->assoc_bssid)); 5388 } 5389 } 5390 if (!res) 5391 return NL_SKIP; 5392 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) { 5393 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 5394 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 5395 } else { 5396 ie = NULL; 5397 ie_len = 0; 5398 } 5399 if (bss[NL80211_BSS_BEACON_IES]) { 5400 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]); 5401 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]); 5402 } else { 5403 beacon_ie = NULL; 5404 beacon_ie_len = 0; 5405 } 5406 5407 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie, 5408 ie ? ie_len : beacon_ie_len)) 5409 return NL_SKIP; 5410 5411 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len); 5412 if (r == NULL) 5413 return NL_SKIP; 5414 if (bss[NL80211_BSS_BSSID]) 5415 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]), 5416 ETH_ALEN); 5417 if (bss[NL80211_BSS_FREQUENCY]) 5418 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 5419 if (bss[NL80211_BSS_BEACON_INTERVAL]) 5420 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]); 5421 if (bss[NL80211_BSS_CAPABILITY]) 5422 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]); 5423 r->flags |= WPA_SCAN_NOISE_INVALID; 5424 if (bss[NL80211_BSS_SIGNAL_MBM]) { 5425 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]); 5426 r->level /= 100; /* mBm to dBm */ 5427 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID; 5428 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) { 5429 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]); 5430 r->flags |= WPA_SCAN_QUAL_INVALID; 5431 } else 5432 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID; 5433 if (bss[NL80211_BSS_TSF]) 5434 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]); 5435 if (bss[NL80211_BSS_SEEN_MS_AGO]) 5436 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]); 5437 r->ie_len = ie_len; 5438 pos = (u8 *) (r + 1); 5439 if (ie) { 5440 os_memcpy(pos, ie, ie_len); 5441 pos += ie_len; 5442 } 5443 r->beacon_ie_len = beacon_ie_len; 5444 if (beacon_ie) 5445 os_memcpy(pos, beacon_ie, beacon_ie_len); 5446 5447 if (bss[NL80211_BSS_STATUS]) { 5448 enum nl80211_bss_status status; 5449 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 5450 switch (status) { 5451 case NL80211_BSS_STATUS_AUTHENTICATED: 5452 r->flags |= WPA_SCAN_AUTHENTICATED; 5453 break; 5454 case NL80211_BSS_STATUS_ASSOCIATED: 5455 r->flags |= WPA_SCAN_ASSOCIATED; 5456 break; 5457 default: 5458 break; 5459 } 5460 } 5461 5462 /* 5463 * cfg80211 maintains separate BSS table entries for APs if the same 5464 * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does 5465 * not use frequency as a separate key in the BSS table, so filter out 5466 * duplicated entries. Prefer associated BSS entry in such a case in 5467 * order to get the correct frequency into the BSS table. Similarly, 5468 * prefer newer entries over older. 5469 */ 5470 for (i = 0; i < res->num; i++) { 5471 const u8 *s1, *s2; 5472 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0) 5473 continue; 5474 5475 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1), 5476 res->res[i]->ie_len, WLAN_EID_SSID); 5477 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID); 5478 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] || 5479 os_memcmp(s1, s2, 2 + s1[1]) != 0) 5480 continue; 5481 5482 /* Same BSSID,SSID was already included in scan results */ 5483 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result " 5484 "for " MACSTR, MAC2STR(r->bssid)); 5485 5486 if (((r->flags & WPA_SCAN_ASSOCIATED) && 5487 !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) || 5488 r->age < res->res[i]->age) { 5489 os_free(res->res[i]); 5490 res->res[i] = r; 5491 } else 5492 os_free(r); 5493 return NL_SKIP; 5494 } 5495 5496 tmp = os_realloc_array(res->res, res->num + 1, 5497 sizeof(struct wpa_scan_res *)); 5498 if (tmp == NULL) { 5499 os_free(r); 5500 return NL_SKIP; 5501 } 5502 tmp[res->num++] = r; 5503 res->res = tmp; 5504 5505 return NL_SKIP; 5506} 5507 5508 5509static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv, 5510 const u8 *addr) 5511{ 5512 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 5513 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state " 5514 "mismatch (" MACSTR ")", MAC2STR(addr)); 5515 wpa_driver_nl80211_mlme(drv, addr, 5516 NL80211_CMD_DEAUTHENTICATE, 5517 WLAN_REASON_PREV_AUTH_NOT_VALID, 1); 5518 } 5519} 5520 5521 5522static void wpa_driver_nl80211_check_bss_status( 5523 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res) 5524{ 5525 size_t i; 5526 5527 for (i = 0; i < res->num; i++) { 5528 struct wpa_scan_res *r = res->res[i]; 5529 if (r->flags & WPA_SCAN_AUTHENTICATED) { 5530 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 5531 "indicates BSS status with " MACSTR 5532 " as authenticated", 5533 MAC2STR(r->bssid)); 5534 if (is_sta_interface(drv->nlmode) && 5535 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 && 5536 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) != 5537 0) { 5538 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID" 5539 " in local state (auth=" MACSTR 5540 " assoc=" MACSTR ")", 5541 MAC2STR(drv->auth_bssid), 5542 MAC2STR(drv->bssid)); 5543 clear_state_mismatch(drv, r->bssid); 5544 } 5545 } 5546 5547 if (r->flags & WPA_SCAN_ASSOCIATED) { 5548 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 5549 "indicate BSS status with " MACSTR 5550 " as associated", 5551 MAC2STR(r->bssid)); 5552 if (is_sta_interface(drv->nlmode) && 5553 !drv->associated) { 5554 wpa_printf(MSG_DEBUG, "nl80211: Local state " 5555 "(not associated) does not match " 5556 "with BSS state"); 5557 clear_state_mismatch(drv, r->bssid); 5558 } else if (is_sta_interface(drv->nlmode) && 5559 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) != 5560 0) { 5561 wpa_printf(MSG_DEBUG, "nl80211: Local state " 5562 "(associated with " MACSTR ") does " 5563 "not match with BSS state", 5564 MAC2STR(drv->bssid)); 5565 clear_state_mismatch(drv, r->bssid); 5566 clear_state_mismatch(drv, drv->bssid); 5567 } 5568 } 5569 } 5570} 5571 5572 5573static struct wpa_scan_results * 5574nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv) 5575{ 5576 struct nl_msg *msg; 5577 struct wpa_scan_results *res; 5578 int ret; 5579 struct nl80211_bss_info_arg arg; 5580 5581 res = os_zalloc(sizeof(*res)); 5582 if (res == NULL) 5583 return NULL; 5584 msg = nlmsg_alloc(); 5585 if (!msg) 5586 goto nla_put_failure; 5587 5588 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 5589 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 5590 goto nla_put_failure; 5591 5592 arg.drv = drv; 5593 arg.res = res; 5594 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 5595 msg = NULL; 5596 if (ret == 0) { 5597 wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu " 5598 "BSSes)", (unsigned long) res->num); 5599 nl80211_get_noise_for_scan_results(drv, res); 5600 return res; 5601 } 5602 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 5603 "(%s)", ret, strerror(-ret)); 5604nla_put_failure: 5605 nlmsg_free(msg); 5606 wpa_scan_results_free(res); 5607 return NULL; 5608} 5609 5610 5611/** 5612 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results 5613 * @priv: Pointer to private wext data from wpa_driver_nl80211_init() 5614 * Returns: Scan results on success, -1 on failure 5615 */ 5616static struct wpa_scan_results * 5617wpa_driver_nl80211_get_scan_results(void *priv) 5618{ 5619 struct i802_bss *bss = priv; 5620 struct wpa_driver_nl80211_data *drv = bss->drv; 5621 struct wpa_scan_results *res; 5622 5623 res = nl80211_get_scan_results(drv); 5624 if (res) 5625 wpa_driver_nl80211_check_bss_status(drv, res); 5626 return res; 5627} 5628 5629 5630static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv) 5631{ 5632 struct wpa_scan_results *res; 5633 size_t i; 5634 5635 res = nl80211_get_scan_results(drv); 5636 if (res == NULL) { 5637 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results"); 5638 return; 5639 } 5640 5641 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump"); 5642 for (i = 0; i < res->num; i++) { 5643 struct wpa_scan_res *r = res->res[i]; 5644 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s", 5645 (int) i, (int) res->num, MAC2STR(r->bssid), 5646 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "", 5647 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : ""); 5648 } 5649 5650 wpa_scan_results_free(res); 5651} 5652 5653 5654static u32 wpa_alg_to_cipher_suite(enum wpa_alg alg, size_t key_len) 5655{ 5656 switch (alg) { 5657 case WPA_ALG_WEP: 5658 if (key_len == 5) 5659 return WLAN_CIPHER_SUITE_WEP40; 5660 return WLAN_CIPHER_SUITE_WEP104; 5661 case WPA_ALG_TKIP: 5662 return WLAN_CIPHER_SUITE_TKIP; 5663 case WPA_ALG_CCMP: 5664 return WLAN_CIPHER_SUITE_CCMP; 5665 case WPA_ALG_GCMP: 5666 return WLAN_CIPHER_SUITE_GCMP; 5667 case WPA_ALG_CCMP_256: 5668 return WLAN_CIPHER_SUITE_CCMP_256; 5669 case WPA_ALG_GCMP_256: 5670 return WLAN_CIPHER_SUITE_GCMP_256; 5671 case WPA_ALG_IGTK: 5672 return WLAN_CIPHER_SUITE_AES_CMAC; 5673 case WPA_ALG_BIP_GMAC_128: 5674 return WLAN_CIPHER_SUITE_BIP_GMAC_128; 5675 case WPA_ALG_BIP_GMAC_256: 5676 return WLAN_CIPHER_SUITE_BIP_GMAC_256; 5677 case WPA_ALG_BIP_CMAC_256: 5678 return WLAN_CIPHER_SUITE_BIP_CMAC_256; 5679 case WPA_ALG_SMS4: 5680 return WLAN_CIPHER_SUITE_SMS4; 5681 case WPA_ALG_KRK: 5682 return WLAN_CIPHER_SUITE_KRK; 5683 case WPA_ALG_NONE: 5684 case WPA_ALG_PMK: 5685 wpa_printf(MSG_ERROR, "nl80211: Unexpected encryption algorithm %d", 5686 alg); 5687 return 0; 5688 } 5689 5690 wpa_printf(MSG_ERROR, "nl80211: Unsupported encryption algorithm %d", 5691 alg); 5692 return 0; 5693} 5694 5695 5696static u32 wpa_cipher_to_cipher_suite(unsigned int cipher) 5697{ 5698 switch (cipher) { 5699 case WPA_CIPHER_CCMP_256: 5700 return WLAN_CIPHER_SUITE_CCMP_256; 5701 case WPA_CIPHER_GCMP_256: 5702 return WLAN_CIPHER_SUITE_GCMP_256; 5703 case WPA_CIPHER_CCMP: 5704 return WLAN_CIPHER_SUITE_CCMP; 5705 case WPA_CIPHER_GCMP: 5706 return WLAN_CIPHER_SUITE_GCMP; 5707 case WPA_CIPHER_TKIP: 5708 return WLAN_CIPHER_SUITE_TKIP; 5709 case WPA_CIPHER_WEP104: 5710 return WLAN_CIPHER_SUITE_WEP104; 5711 case WPA_CIPHER_WEP40: 5712 return WLAN_CIPHER_SUITE_WEP40; 5713 case WPA_CIPHER_GTK_NOT_USED: 5714 return WLAN_CIPHER_SUITE_NO_GROUP_ADDR; 5715 } 5716 5717 return 0; 5718} 5719 5720 5721static int wpa_cipher_to_cipher_suites(unsigned int ciphers, u32 suites[], 5722 int max_suites) 5723{ 5724 int num_suites = 0; 5725 5726 if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP_256) 5727 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP_256; 5728 if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP_256) 5729 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP_256; 5730 if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP) 5731 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP; 5732 if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP) 5733 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP; 5734 if (num_suites < max_suites && ciphers & WPA_CIPHER_TKIP) 5735 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP; 5736 if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP104) 5737 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104; 5738 if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP40) 5739 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40; 5740 5741 return num_suites; 5742} 5743 5744 5745static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss, 5746 enum wpa_alg alg, const u8 *addr, 5747 int key_idx, int set_tx, 5748 const u8 *seq, size_t seq_len, 5749 const u8 *key, size_t key_len) 5750{ 5751 struct wpa_driver_nl80211_data *drv = bss->drv; 5752 int ifindex; 5753 struct nl_msg *msg; 5754 int ret; 5755 int tdls = 0; 5756 5757 /* Ignore for P2P Device */ 5758 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 5759 return 0; 5760 5761 ifindex = if_nametoindex(ifname); 5762 wpa_printf(MSG_DEBUG, "%s: ifindex=%d (%s) alg=%d addr=%p key_idx=%d " 5763 "set_tx=%d seq_len=%lu key_len=%lu", 5764 __func__, ifindex, ifname, alg, addr, key_idx, set_tx, 5765 (unsigned long) seq_len, (unsigned long) key_len); 5766#ifdef CONFIG_TDLS 5767 if (key_idx == -1) { 5768 key_idx = 0; 5769 tdls = 1; 5770 } 5771#endif /* CONFIG_TDLS */ 5772 5773 msg = nlmsg_alloc(); 5774 if (!msg) 5775 return -ENOMEM; 5776 5777 if (alg == WPA_ALG_NONE) { 5778 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY); 5779 } else { 5780 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY); 5781 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key); 5782 wpa_hexdump_key(MSG_DEBUG, "nl80211: KEY_DATA", key, key_len); 5783 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5784 wpa_alg_to_cipher_suite(alg, key_len)); 5785 } 5786 5787 if (seq && seq_len) { 5788 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq); 5789 wpa_hexdump(MSG_DEBUG, "nl80211: KEY_SEQ", seq, seq_len); 5790 } 5791 5792 if (addr && !is_broadcast_ether_addr(addr)) { 5793 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr)); 5794 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 5795 5796 if (alg != WPA_ALG_WEP && key_idx && !set_tx) { 5797 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK"); 5798 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, 5799 NL80211_KEYTYPE_GROUP); 5800 } 5801 } else if (addr && is_broadcast_ether_addr(addr)) { 5802 struct nlattr *types; 5803 5804 wpa_printf(MSG_DEBUG, " broadcast key"); 5805 5806 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5807 if (!types) 5808 goto nla_put_failure; 5809 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 5810 nla_nest_end(msg, types); 5811 } 5812 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 5813 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5814 5815 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5816 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE) 5817 ret = 0; 5818 if (ret) 5819 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)", 5820 ret, strerror(-ret)); 5821 5822 /* 5823 * If we failed or don't need to set the default TX key (below), 5824 * we're done here. 5825 */ 5826 if (ret || !set_tx || alg == WPA_ALG_NONE || tdls) 5827 return ret; 5828 if (is_ap_interface(drv->nlmode) && addr && 5829 !is_broadcast_ether_addr(addr)) 5830 return ret; 5831 5832 msg = nlmsg_alloc(); 5833 if (!msg) 5834 return -ENOMEM; 5835 5836 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY); 5837 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 5838 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5839 if (alg == WPA_ALG_IGTK) 5840 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT); 5841 else 5842 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT); 5843 if (addr && is_broadcast_ether_addr(addr)) { 5844 struct nlattr *types; 5845 5846 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5847 if (!types) 5848 goto nla_put_failure; 5849 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 5850 nla_nest_end(msg, types); 5851 } else if (addr) { 5852 struct nlattr *types; 5853 5854 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5855 if (!types) 5856 goto nla_put_failure; 5857 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_UNICAST); 5858 nla_nest_end(msg, types); 5859 } 5860 5861 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5862 if (ret == -ENOENT) 5863 ret = 0; 5864 if (ret) 5865 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; " 5866 "err=%d %s)", ret, strerror(-ret)); 5867 return ret; 5868 5869nla_put_failure: 5870 nlmsg_free(msg); 5871 return -ENOBUFS; 5872} 5873 5874 5875static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg, 5876 int key_idx, int defkey, 5877 const u8 *seq, size_t seq_len, 5878 const u8 *key, size_t key_len) 5879{ 5880 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY); 5881 if (!key_attr) 5882 return -1; 5883 5884 if (defkey && alg == WPA_ALG_IGTK) 5885 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT); 5886 else if (defkey) 5887 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 5888 5889 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx); 5890 5891 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5892 wpa_alg_to_cipher_suite(alg, key_len)); 5893 5894 if (seq && seq_len) 5895 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq); 5896 5897 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key); 5898 5899 nla_nest_end(msg, key_attr); 5900 5901 return 0; 5902 nla_put_failure: 5903 return -1; 5904} 5905 5906 5907static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params, 5908 struct nl_msg *msg) 5909{ 5910 int i, privacy = 0; 5911 struct nlattr *nl_keys, *nl_key; 5912 5913 for (i = 0; i < 4; i++) { 5914 if (!params->wep_key[i]) 5915 continue; 5916 privacy = 1; 5917 break; 5918 } 5919 if (params->wps == WPS_MODE_PRIVACY) 5920 privacy = 1; 5921 if (params->pairwise_suite && 5922 params->pairwise_suite != WPA_CIPHER_NONE) 5923 privacy = 1; 5924 5925 if (!privacy) 5926 return 0; 5927 5928 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 5929 5930 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS); 5931 if (!nl_keys) 5932 goto nla_put_failure; 5933 5934 for (i = 0; i < 4; i++) { 5935 if (!params->wep_key[i]) 5936 continue; 5937 5938 nl_key = nla_nest_start(msg, i); 5939 if (!nl_key) 5940 goto nla_put_failure; 5941 5942 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i], 5943 params->wep_key[i]); 5944 if (params->wep_key_len[i] == 5) 5945 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5946 WLAN_CIPHER_SUITE_WEP40); 5947 else 5948 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5949 WLAN_CIPHER_SUITE_WEP104); 5950 5951 NLA_PUT_U8(msg, NL80211_KEY_IDX, i); 5952 5953 if (i == params->wep_tx_keyidx) 5954 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 5955 5956 nla_nest_end(msg, nl_key); 5957 } 5958 nla_nest_end(msg, nl_keys); 5959 5960 return 0; 5961 5962nla_put_failure: 5963 return -ENOBUFS; 5964} 5965 5966 5967static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 5968 const u8 *addr, int cmd, u16 reason_code, 5969 int local_state_change) 5970{ 5971 int ret = -1; 5972 struct nl_msg *msg; 5973 5974 msg = nlmsg_alloc(); 5975 if (!msg) 5976 return -1; 5977 5978 nl80211_cmd(drv, msg, 0, cmd); 5979 5980 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5981 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code); 5982 if (addr) 5983 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 5984 if (local_state_change) 5985 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 5986 5987 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5988 msg = NULL; 5989 if (ret) { 5990 wpa_dbg(drv->ctx, MSG_DEBUG, 5991 "nl80211: MLME command failed: reason=%u ret=%d (%s)", 5992 reason_code, ret, strerror(-ret)); 5993 goto nla_put_failure; 5994 } 5995 ret = 0; 5996 5997nla_put_failure: 5998 nlmsg_free(msg); 5999 return ret; 6000} 6001 6002 6003static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv, 6004 int reason_code) 6005{ 6006 int ret; 6007 6008 wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code); 6009 nl80211_mark_disconnected(drv); 6010 /* Disconnect command doesn't need BSSID - it uses cached value */ 6011 ret = wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT, 6012 reason_code, 0); 6013 /* 6014 * For locally generated disconnect, supplicant already generates a 6015 * DEAUTH event, so ignore the event from NL80211. 6016 */ 6017 drv->ignore_next_local_disconnect = ret == 0; 6018 6019 return ret; 6020} 6021 6022 6023static int wpa_driver_nl80211_deauthenticate(struct i802_bss *bss, 6024 const u8 *addr, int reason_code) 6025{ 6026 struct wpa_driver_nl80211_data *drv = bss->drv; 6027 int ret; 6028 6029 if (drv->nlmode == NL80211_IFTYPE_ADHOC) { 6030 nl80211_mark_disconnected(drv); 6031 return nl80211_leave_ibss(drv); 6032 } 6033 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) 6034 return wpa_driver_nl80211_disconnect(drv, reason_code); 6035 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)", 6036 __func__, MAC2STR(addr), reason_code); 6037 nl80211_mark_disconnected(drv); 6038 ret = wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE, 6039 reason_code, 0); 6040 /* 6041 * For locally generated deauthenticate, supplicant already generates a 6042 * DEAUTH event, so ignore the event from NL80211. 6043 */ 6044 drv->ignore_next_local_deauth = ret == 0; 6045 return ret; 6046} 6047 6048 6049static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv, 6050 struct wpa_driver_auth_params *params) 6051{ 6052 int i; 6053 6054 drv->auth_freq = params->freq; 6055 drv->auth_alg = params->auth_alg; 6056 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx; 6057 drv->auth_local_state_change = params->local_state_change; 6058 drv->auth_p2p = params->p2p; 6059 6060 if (params->bssid) 6061 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN); 6062 else 6063 os_memset(drv->auth_bssid_, 0, ETH_ALEN); 6064 6065 if (params->ssid) { 6066 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len); 6067 drv->auth_ssid_len = params->ssid_len; 6068 } else 6069 drv->auth_ssid_len = 0; 6070 6071 6072 os_free(drv->auth_ie); 6073 drv->auth_ie = NULL; 6074 drv->auth_ie_len = 0; 6075 if (params->ie) { 6076 drv->auth_ie = os_malloc(params->ie_len); 6077 if (drv->auth_ie) { 6078 os_memcpy(drv->auth_ie, params->ie, params->ie_len); 6079 drv->auth_ie_len = params->ie_len; 6080 } 6081 } 6082 6083 for (i = 0; i < 4; i++) { 6084 if (params->wep_key[i] && params->wep_key_len[i] && 6085 params->wep_key_len[i] <= 16) { 6086 os_memcpy(drv->auth_wep_key[i], params->wep_key[i], 6087 params->wep_key_len[i]); 6088 drv->auth_wep_key_len[i] = params->wep_key_len[i]; 6089 } else 6090 drv->auth_wep_key_len[i] = 0; 6091 } 6092} 6093 6094 6095static int wpa_driver_nl80211_authenticate( 6096 struct i802_bss *bss, struct wpa_driver_auth_params *params) 6097{ 6098 struct wpa_driver_nl80211_data *drv = bss->drv; 6099 int ret = -1, i; 6100 struct nl_msg *msg; 6101 enum nl80211_auth_type type; 6102 enum nl80211_iftype nlmode; 6103 int count = 0; 6104 int is_retry; 6105 6106 is_retry = drv->retry_auth; 6107 drv->retry_auth = 0; 6108 drv->ignore_deauth_event = 0; 6109 6110 nl80211_mark_disconnected(drv); 6111 os_memset(drv->auth_bssid, 0, ETH_ALEN); 6112 if (params->bssid) 6113 os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN); 6114 else 6115 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 6116 /* FIX: IBSS mode */ 6117 nlmode = params->p2p ? 6118 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 6119 if (drv->nlmode != nlmode && 6120 wpa_driver_nl80211_set_mode(bss, nlmode) < 0) 6121 return -1; 6122 6123retry: 6124 msg = nlmsg_alloc(); 6125 if (!msg) 6126 return -1; 6127 6128 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)", 6129 drv->ifindex); 6130 6131 nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE); 6132 6133 for (i = 0; i < 4; i++) { 6134 if (!params->wep_key[i]) 6135 continue; 6136 wpa_driver_nl80211_set_key(bss->ifname, bss, WPA_ALG_WEP, 6137 NULL, i, 6138 i == params->wep_tx_keyidx, NULL, 0, 6139 params->wep_key[i], 6140 params->wep_key_len[i]); 6141 if (params->wep_tx_keyidx != i) 6142 continue; 6143 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0, 6144 params->wep_key[i], params->wep_key_len[i])) { 6145 nlmsg_free(msg); 6146 return -1; 6147 } 6148 } 6149 6150 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6151 if (params->bssid) { 6152 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 6153 MAC2STR(params->bssid)); 6154 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 6155 } 6156 if (params->freq) { 6157 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 6158 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 6159 } 6160 if (params->ssid) { 6161 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 6162 params->ssid, params->ssid_len); 6163 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 6164 params->ssid); 6165 } 6166 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len); 6167 if (params->ie) 6168 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie); 6169 if (params->sae_data) { 6170 wpa_hexdump(MSG_DEBUG, " * SAE data", params->sae_data, 6171 params->sae_data_len); 6172 NLA_PUT(msg, NL80211_ATTR_SAE_DATA, params->sae_data_len, 6173 params->sae_data); 6174 } 6175 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 6176 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 6177 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 6178 type = NL80211_AUTHTYPE_SHARED_KEY; 6179 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 6180 type = NL80211_AUTHTYPE_NETWORK_EAP; 6181 else if (params->auth_alg & WPA_AUTH_ALG_FT) 6182 type = NL80211_AUTHTYPE_FT; 6183 else if (params->auth_alg & WPA_AUTH_ALG_SAE) 6184 type = NL80211_AUTHTYPE_SAE; 6185 else 6186 goto nla_put_failure; 6187 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 6188 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 6189 if (params->local_state_change) { 6190 wpa_printf(MSG_DEBUG, " * Local state change only"); 6191 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 6192 } 6193 6194 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6195 msg = NULL; 6196 if (ret) { 6197 wpa_dbg(drv->ctx, MSG_DEBUG, 6198 "nl80211: MLME command failed (auth): ret=%d (%s)", 6199 ret, strerror(-ret)); 6200 count++; 6201 if (ret == -EALREADY && count == 1 && params->bssid && 6202 !params->local_state_change) { 6203 /* 6204 * mac80211 does not currently accept new 6205 * authentication if we are already authenticated. As a 6206 * workaround, force deauthentication and try again. 6207 */ 6208 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication " 6209 "after forced deauthentication"); 6210 drv->ignore_deauth_event = 1; 6211 wpa_driver_nl80211_deauthenticate( 6212 bss, params->bssid, 6213 WLAN_REASON_PREV_AUTH_NOT_VALID); 6214 nlmsg_free(msg); 6215 goto retry; 6216 } 6217 6218 if (ret == -ENOENT && params->freq && !is_retry) { 6219 /* 6220 * cfg80211 has likely expired the BSS entry even 6221 * though it was previously available in our internal 6222 * BSS table. To recover quickly, start a single 6223 * channel scan on the specified channel. 6224 */ 6225 struct wpa_driver_scan_params scan; 6226 int freqs[2]; 6227 6228 os_memset(&scan, 0, sizeof(scan)); 6229 scan.num_ssids = 1; 6230 if (params->ssid) { 6231 scan.ssids[0].ssid = params->ssid; 6232 scan.ssids[0].ssid_len = params->ssid_len; 6233 } 6234 freqs[0] = params->freq; 6235 freqs[1] = 0; 6236 scan.freqs = freqs; 6237 wpa_printf(MSG_DEBUG, "nl80211: Trigger single " 6238 "channel scan to refresh cfg80211 BSS " 6239 "entry"); 6240 ret = wpa_driver_nl80211_scan(bss, &scan); 6241 if (ret == 0) { 6242 nl80211_copy_auth_params(drv, params); 6243 drv->scan_for_auth = 1; 6244 } 6245 } else if (is_retry) { 6246 /* 6247 * Need to indicate this with an event since the return 6248 * value from the retry is not delivered to core code. 6249 */ 6250 union wpa_event_data event; 6251 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry " 6252 "failed"); 6253 os_memset(&event, 0, sizeof(event)); 6254 os_memcpy(event.timeout_event.addr, drv->auth_bssid_, 6255 ETH_ALEN); 6256 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT, 6257 &event); 6258 } 6259 6260 goto nla_put_failure; 6261 } 6262 ret = 0; 6263 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send " 6264 "successfully"); 6265 6266nla_put_failure: 6267 nlmsg_free(msg); 6268 return ret; 6269} 6270 6271 6272static int wpa_driver_nl80211_authenticate_retry( 6273 struct wpa_driver_nl80211_data *drv) 6274{ 6275 struct wpa_driver_auth_params params; 6276 struct i802_bss *bss = drv->first_bss; 6277 int i; 6278 6279 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again"); 6280 6281 os_memset(¶ms, 0, sizeof(params)); 6282 params.freq = drv->auth_freq; 6283 params.auth_alg = drv->auth_alg; 6284 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx; 6285 params.local_state_change = drv->auth_local_state_change; 6286 params.p2p = drv->auth_p2p; 6287 6288 if (!is_zero_ether_addr(drv->auth_bssid_)) 6289 params.bssid = drv->auth_bssid_; 6290 6291 if (drv->auth_ssid_len) { 6292 params.ssid = drv->auth_ssid; 6293 params.ssid_len = drv->auth_ssid_len; 6294 } 6295 6296 params.ie = drv->auth_ie; 6297 params.ie_len = drv->auth_ie_len; 6298 6299 for (i = 0; i < 4; i++) { 6300 if (drv->auth_wep_key_len[i]) { 6301 params.wep_key[i] = drv->auth_wep_key[i]; 6302 params.wep_key_len[i] = drv->auth_wep_key_len[i]; 6303 } 6304 } 6305 6306 drv->retry_auth = 1; 6307 return wpa_driver_nl80211_authenticate(bss, ¶ms); 6308} 6309 6310 6311struct phy_info_arg { 6312 u16 *num_modes; 6313 struct hostapd_hw_modes *modes; 6314 int last_mode, last_chan_idx; 6315}; 6316 6317static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa, 6318 struct nlattr *ampdu_factor, 6319 struct nlattr *ampdu_density, 6320 struct nlattr *mcs_set) 6321{ 6322 if (capa) 6323 mode->ht_capab = nla_get_u16(capa); 6324 6325 if (ampdu_factor) 6326 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03; 6327 6328 if (ampdu_density) 6329 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2; 6330 6331 if (mcs_set && nla_len(mcs_set) >= 16) { 6332 u8 *mcs; 6333 mcs = nla_data(mcs_set); 6334 os_memcpy(mode->mcs_set, mcs, 16); 6335 } 6336} 6337 6338 6339static void phy_info_vht_capa(struct hostapd_hw_modes *mode, 6340 struct nlattr *capa, 6341 struct nlattr *mcs_set) 6342{ 6343 if (capa) 6344 mode->vht_capab = nla_get_u32(capa); 6345 6346 if (mcs_set && nla_len(mcs_set) >= 8) { 6347 u8 *mcs; 6348 mcs = nla_data(mcs_set); 6349 os_memcpy(mode->vht_mcs_set, mcs, 8); 6350 } 6351} 6352 6353 6354static void phy_info_freq(struct hostapd_hw_modes *mode, 6355 struct hostapd_channel_data *chan, 6356 struct nlattr *tb_freq[]) 6357{ 6358 u8 channel; 6359 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]); 6360 chan->flag = 0; 6361 chan->dfs_cac_ms = 0; 6362 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES) 6363 chan->chan = channel; 6364 6365 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) 6366 chan->flag |= HOSTAPD_CHAN_DISABLED; 6367 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IR]) 6368 chan->flag |= HOSTAPD_CHAN_PASSIVE_SCAN | HOSTAPD_CHAN_NO_IBSS; 6369 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR]) 6370 chan->flag |= HOSTAPD_CHAN_RADAR; 6371 6372 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) { 6373 enum nl80211_dfs_state state = 6374 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]); 6375 6376 switch (state) { 6377 case NL80211_DFS_USABLE: 6378 chan->flag |= HOSTAPD_CHAN_DFS_USABLE; 6379 break; 6380 case NL80211_DFS_AVAILABLE: 6381 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE; 6382 break; 6383 case NL80211_DFS_UNAVAILABLE: 6384 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE; 6385 break; 6386 } 6387 } 6388 6389 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME]) { 6390 chan->dfs_cac_ms = nla_get_u32( 6391 tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME]); 6392 } 6393} 6394 6395 6396static int phy_info_freqs(struct phy_info_arg *phy_info, 6397 struct hostapd_hw_modes *mode, struct nlattr *tb) 6398{ 6399 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 6400 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 }, 6401 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG }, 6402 [NL80211_FREQUENCY_ATTR_NO_IR] = { .type = NLA_FLAG }, 6403 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG }, 6404 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 }, 6405 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 }, 6406 }; 6407 int new_channels = 0; 6408 struct hostapd_channel_data *channel; 6409 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1]; 6410 struct nlattr *nl_freq; 6411 int rem_freq, idx; 6412 6413 if (tb == NULL) 6414 return NL_OK; 6415 6416 nla_for_each_nested(nl_freq, tb, rem_freq) { 6417 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 6418 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 6419 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 6420 continue; 6421 new_channels++; 6422 } 6423 6424 channel = os_realloc_array(mode->channels, 6425 mode->num_channels + new_channels, 6426 sizeof(struct hostapd_channel_data)); 6427 if (!channel) 6428 return NL_SKIP; 6429 6430 mode->channels = channel; 6431 mode->num_channels += new_channels; 6432 6433 idx = phy_info->last_chan_idx; 6434 6435 nla_for_each_nested(nl_freq, tb, rem_freq) { 6436 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 6437 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 6438 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 6439 continue; 6440 phy_info_freq(mode, &mode->channels[idx], tb_freq); 6441 idx++; 6442 } 6443 phy_info->last_chan_idx = idx; 6444 6445 return NL_OK; 6446} 6447 6448 6449static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb) 6450{ 6451 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = { 6452 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 }, 6453 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = 6454 { .type = NLA_FLAG }, 6455 }; 6456 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1]; 6457 struct nlattr *nl_rate; 6458 int rem_rate, idx; 6459 6460 if (tb == NULL) 6461 return NL_OK; 6462 6463 nla_for_each_nested(nl_rate, tb, rem_rate) { 6464 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 6465 nla_data(nl_rate), nla_len(nl_rate), 6466 rate_policy); 6467 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 6468 continue; 6469 mode->num_rates++; 6470 } 6471 6472 mode->rates = os_calloc(mode->num_rates, sizeof(int)); 6473 if (!mode->rates) 6474 return NL_SKIP; 6475 6476 idx = 0; 6477 6478 nla_for_each_nested(nl_rate, tb, rem_rate) { 6479 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 6480 nla_data(nl_rate), nla_len(nl_rate), 6481 rate_policy); 6482 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 6483 continue; 6484 mode->rates[idx] = nla_get_u32( 6485 tb_rate[NL80211_BITRATE_ATTR_RATE]); 6486 idx++; 6487 } 6488 6489 return NL_OK; 6490} 6491 6492 6493static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band) 6494{ 6495 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1]; 6496 struct hostapd_hw_modes *mode; 6497 int ret; 6498 6499 if (phy_info->last_mode != nl_band->nla_type) { 6500 mode = os_realloc_array(phy_info->modes, 6501 *phy_info->num_modes + 1, 6502 sizeof(*mode)); 6503 if (!mode) 6504 return NL_SKIP; 6505 phy_info->modes = mode; 6506 6507 mode = &phy_info->modes[*(phy_info->num_modes)]; 6508 os_memset(mode, 0, sizeof(*mode)); 6509 mode->mode = NUM_HOSTAPD_MODES; 6510 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN | 6511 HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN; 6512 6513 /* 6514 * Unsupported VHT MCS stream is defined as value 3, so the VHT 6515 * MCS RX/TX map must be initialized with 0xffff to mark all 8 6516 * possible streams as unsupported. This will be overridden if 6517 * driver advertises VHT support. 6518 */ 6519 mode->vht_mcs_set[0] = 0xff; 6520 mode->vht_mcs_set[1] = 0xff; 6521 mode->vht_mcs_set[4] = 0xff; 6522 mode->vht_mcs_set[5] = 0xff; 6523 6524 *(phy_info->num_modes) += 1; 6525 phy_info->last_mode = nl_band->nla_type; 6526 phy_info->last_chan_idx = 0; 6527 } else 6528 mode = &phy_info->modes[*(phy_info->num_modes) - 1]; 6529 6530 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band), 6531 nla_len(nl_band), NULL); 6532 6533 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA], 6534 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR], 6535 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY], 6536 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]); 6537 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA], 6538 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]); 6539 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]); 6540 if (ret != NL_OK) 6541 return ret; 6542 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]); 6543 if (ret != NL_OK) 6544 return ret; 6545 6546 return NL_OK; 6547} 6548 6549 6550static int phy_info_handler(struct nl_msg *msg, void *arg) 6551{ 6552 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 6553 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 6554 struct phy_info_arg *phy_info = arg; 6555 struct nlattr *nl_band; 6556 int rem_band; 6557 6558 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 6559 genlmsg_attrlen(gnlh, 0), NULL); 6560 6561 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS]) 6562 return NL_SKIP; 6563 6564 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) 6565 { 6566 int res = phy_info_band(phy_info, nl_band); 6567 if (res != NL_OK) 6568 return res; 6569 } 6570 6571 return NL_SKIP; 6572} 6573 6574 6575static struct hostapd_hw_modes * 6576wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes, 6577 u16 *num_modes) 6578{ 6579 u16 m; 6580 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode; 6581 int i, mode11g_idx = -1; 6582 6583 /* heuristic to set up modes */ 6584 for (m = 0; m < *num_modes; m++) { 6585 if (!modes[m].num_channels) 6586 continue; 6587 if (modes[m].channels[0].freq < 4000) { 6588 modes[m].mode = HOSTAPD_MODE_IEEE80211B; 6589 for (i = 0; i < modes[m].num_rates; i++) { 6590 if (modes[m].rates[i] > 200) { 6591 modes[m].mode = HOSTAPD_MODE_IEEE80211G; 6592 break; 6593 } 6594 } 6595 } else if (modes[m].channels[0].freq > 50000) 6596 modes[m].mode = HOSTAPD_MODE_IEEE80211AD; 6597 else 6598 modes[m].mode = HOSTAPD_MODE_IEEE80211A; 6599 } 6600 6601 /* If only 802.11g mode is included, use it to construct matching 6602 * 802.11b mode data. */ 6603 6604 for (m = 0; m < *num_modes; m++) { 6605 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B) 6606 return modes; /* 802.11b already included */ 6607 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G) 6608 mode11g_idx = m; 6609 } 6610 6611 if (mode11g_idx < 0) 6612 return modes; /* 2.4 GHz band not supported at all */ 6613 6614 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes)); 6615 if (nmodes == NULL) 6616 return modes; /* Could not add 802.11b mode */ 6617 6618 mode = &nmodes[*num_modes]; 6619 os_memset(mode, 0, sizeof(*mode)); 6620 (*num_modes)++; 6621 modes = nmodes; 6622 6623 mode->mode = HOSTAPD_MODE_IEEE80211B; 6624 6625 mode11g = &modes[mode11g_idx]; 6626 mode->num_channels = mode11g->num_channels; 6627 mode->channels = os_malloc(mode11g->num_channels * 6628 sizeof(struct hostapd_channel_data)); 6629 if (mode->channels == NULL) { 6630 (*num_modes)--; 6631 return modes; /* Could not add 802.11b mode */ 6632 } 6633 os_memcpy(mode->channels, mode11g->channels, 6634 mode11g->num_channels * sizeof(struct hostapd_channel_data)); 6635 6636 mode->num_rates = 0; 6637 mode->rates = os_malloc(4 * sizeof(int)); 6638 if (mode->rates == NULL) { 6639 os_free(mode->channels); 6640 (*num_modes)--; 6641 return modes; /* Could not add 802.11b mode */ 6642 } 6643 6644 for (i = 0; i < mode11g->num_rates; i++) { 6645 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 && 6646 mode11g->rates[i] != 55 && mode11g->rates[i] != 110) 6647 continue; 6648 mode->rates[mode->num_rates] = mode11g->rates[i]; 6649 mode->num_rates++; 6650 if (mode->num_rates == 4) 6651 break; 6652 } 6653 6654 if (mode->num_rates == 0) { 6655 os_free(mode->channels); 6656 os_free(mode->rates); 6657 (*num_modes)--; 6658 return modes; /* No 802.11b rates */ 6659 } 6660 6661 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g " 6662 "information"); 6663 6664 return modes; 6665} 6666 6667 6668static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start, 6669 int end) 6670{ 6671 int c; 6672 6673 for (c = 0; c < mode->num_channels; c++) { 6674 struct hostapd_channel_data *chan = &mode->channels[c]; 6675 if (chan->freq - 10 >= start && chan->freq + 10 <= end) 6676 chan->flag |= HOSTAPD_CHAN_HT40; 6677 } 6678} 6679 6680 6681static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start, 6682 int end) 6683{ 6684 int c; 6685 6686 for (c = 0; c < mode->num_channels; c++) { 6687 struct hostapd_channel_data *chan = &mode->channels[c]; 6688 if (!(chan->flag & HOSTAPD_CHAN_HT40)) 6689 continue; 6690 if (chan->freq - 30 >= start && chan->freq - 10 <= end) 6691 chan->flag |= HOSTAPD_CHAN_HT40MINUS; 6692 if (chan->freq + 10 >= start && chan->freq + 30 <= end) 6693 chan->flag |= HOSTAPD_CHAN_HT40PLUS; 6694 } 6695} 6696 6697 6698static void nl80211_reg_rule_max_eirp(u32 start, u32 end, u32 max_eirp, 6699 struct phy_info_arg *results) 6700{ 6701 u16 m; 6702 6703 for (m = 0; m < *results->num_modes; m++) { 6704 int c; 6705 struct hostapd_hw_modes *mode = &results->modes[m]; 6706 6707 for (c = 0; c < mode->num_channels; c++) { 6708 struct hostapd_channel_data *chan = &mode->channels[c]; 6709 if ((u32) chan->freq - 10 >= start && 6710 (u32) chan->freq + 10 <= end) 6711 chan->max_tx_power = max_eirp; 6712 } 6713 } 6714} 6715 6716 6717static void nl80211_reg_rule_ht40(u32 start, u32 end, 6718 struct phy_info_arg *results) 6719{ 6720 u16 m; 6721 6722 for (m = 0; m < *results->num_modes; m++) { 6723 if (!(results->modes[m].ht_capab & 6724 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6725 continue; 6726 nl80211_set_ht40_mode(&results->modes[m], start, end); 6727 } 6728} 6729 6730 6731static void nl80211_reg_rule_sec(struct nlattr *tb[], 6732 struct phy_info_arg *results) 6733{ 6734 u32 start, end, max_bw; 6735 u16 m; 6736 6737 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6738 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 6739 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 6740 return; 6741 6742 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6743 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6744 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6745 6746 if (max_bw < 20) 6747 return; 6748 6749 for (m = 0; m < *results->num_modes; m++) { 6750 if (!(results->modes[m].ht_capab & 6751 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6752 continue; 6753 nl80211_set_ht40_mode_sec(&results->modes[m], start, end); 6754 } 6755} 6756 6757 6758static void nl80211_set_vht_mode(struct hostapd_hw_modes *mode, int start, 6759 int end) 6760{ 6761 int c; 6762 6763 for (c = 0; c < mode->num_channels; c++) { 6764 struct hostapd_channel_data *chan = &mode->channels[c]; 6765 if (chan->freq - 10 >= start && chan->freq + 70 <= end) 6766 chan->flag |= HOSTAPD_CHAN_VHT_10_70; 6767 6768 if (chan->freq - 30 >= start && chan->freq + 50 <= end) 6769 chan->flag |= HOSTAPD_CHAN_VHT_30_50; 6770 6771 if (chan->freq - 50 >= start && chan->freq + 30 <= end) 6772 chan->flag |= HOSTAPD_CHAN_VHT_50_30; 6773 6774 if (chan->freq - 70 >= start && chan->freq + 10 <= end) 6775 chan->flag |= HOSTAPD_CHAN_VHT_70_10; 6776 } 6777} 6778 6779 6780static void nl80211_reg_rule_vht(struct nlattr *tb[], 6781 struct phy_info_arg *results) 6782{ 6783 u32 start, end, max_bw; 6784 u16 m; 6785 6786 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6787 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 6788 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 6789 return; 6790 6791 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6792 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6793 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6794 6795 if (max_bw < 80) 6796 return; 6797 6798 for (m = 0; m < *results->num_modes; m++) { 6799 if (!(results->modes[m].ht_capab & 6800 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6801 continue; 6802 /* TODO: use a real VHT support indication */ 6803 if (!results->modes[m].vht_capab) 6804 continue; 6805 6806 nl80211_set_vht_mode(&results->modes[m], start, end); 6807 } 6808} 6809 6810 6811static const char * dfs_domain_name(enum nl80211_dfs_regions region) 6812{ 6813 switch (region) { 6814 case NL80211_DFS_UNSET: 6815 return "DFS-UNSET"; 6816 case NL80211_DFS_FCC: 6817 return "DFS-FCC"; 6818 case NL80211_DFS_ETSI: 6819 return "DFS-ETSI"; 6820 case NL80211_DFS_JP: 6821 return "DFS-JP"; 6822 default: 6823 return "DFS-invalid"; 6824 } 6825} 6826 6827 6828static int nl80211_get_reg(struct nl_msg *msg, void *arg) 6829{ 6830 struct phy_info_arg *results = arg; 6831 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 6832 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 6833 struct nlattr *nl_rule; 6834 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1]; 6835 int rem_rule; 6836 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 6837 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, 6838 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, 6839 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, 6840 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, 6841 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, 6842 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, 6843 }; 6844 6845 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 6846 genlmsg_attrlen(gnlh, 0), NULL); 6847 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] || 6848 !tb_msg[NL80211_ATTR_REG_RULES]) { 6849 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information " 6850 "available"); 6851 return NL_SKIP; 6852 } 6853 6854 if (tb_msg[NL80211_ATTR_DFS_REGION]) { 6855 enum nl80211_dfs_regions dfs_domain; 6856 dfs_domain = nla_get_u8(tb_msg[NL80211_ATTR_DFS_REGION]); 6857 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s (%s)", 6858 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]), 6859 dfs_domain_name(dfs_domain)); 6860 } else { 6861 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s", 6862 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2])); 6863 } 6864 6865 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6866 { 6867 u32 start, end, max_eirp = 0, max_bw = 0, flags = 0; 6868 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6869 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6870 if (tb_rule[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6871 tb_rule[NL80211_ATTR_FREQ_RANGE_END] == NULL) 6872 continue; 6873 start = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6874 end = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6875 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) 6876 max_eirp = nla_get_u32(tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) / 100; 6877 if (tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) 6878 max_bw = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6879 if (tb_rule[NL80211_ATTR_REG_RULE_FLAGS]) 6880 flags = nla_get_u32(tb_rule[NL80211_ATTR_REG_RULE_FLAGS]); 6881 6882 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz %u mBm%s%s%s%s%s%s%s%s", 6883 start, end, max_bw, max_eirp, 6884 flags & NL80211_RRF_NO_OFDM ? " (no OFDM)" : "", 6885 flags & NL80211_RRF_NO_CCK ? " (no CCK)" : "", 6886 flags & NL80211_RRF_NO_INDOOR ? " (no indoor)" : "", 6887 flags & NL80211_RRF_NO_OUTDOOR ? " (no outdoor)" : 6888 "", 6889 flags & NL80211_RRF_DFS ? " (DFS)" : "", 6890 flags & NL80211_RRF_PTP_ONLY ? " (PTP only)" : "", 6891 flags & NL80211_RRF_PTMP_ONLY ? " (PTMP only)" : "", 6892 flags & NL80211_RRF_NO_IR ? " (no IR)" : ""); 6893 if (max_bw >= 40) 6894 nl80211_reg_rule_ht40(start, end, results); 6895 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) 6896 nl80211_reg_rule_max_eirp(start, end, max_eirp, 6897 results); 6898 } 6899 6900 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6901 { 6902 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6903 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6904 nl80211_reg_rule_sec(tb_rule, results); 6905 } 6906 6907 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6908 { 6909 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6910 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6911 nl80211_reg_rule_vht(tb_rule, results); 6912 } 6913 6914 return NL_SKIP; 6915} 6916 6917 6918static int nl80211_set_regulatory_flags(struct wpa_driver_nl80211_data *drv, 6919 struct phy_info_arg *results) 6920{ 6921 struct nl_msg *msg; 6922 6923 msg = nlmsg_alloc(); 6924 if (!msg) 6925 return -ENOMEM; 6926 6927 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 6928 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results); 6929} 6930 6931 6932static struct hostapd_hw_modes * 6933wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags) 6934{ 6935 u32 feat; 6936 struct i802_bss *bss = priv; 6937 struct wpa_driver_nl80211_data *drv = bss->drv; 6938 struct nl_msg *msg; 6939 struct phy_info_arg result = { 6940 .num_modes = num_modes, 6941 .modes = NULL, 6942 .last_mode = -1, 6943 }; 6944 6945 *num_modes = 0; 6946 *flags = 0; 6947 6948 msg = nlmsg_alloc(); 6949 if (!msg) 6950 return NULL; 6951 6952 feat = get_nl80211_protocol_features(drv); 6953 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 6954 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 6955 else 6956 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 6957 6958 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 6959 if (nl80211_set_iface_id(msg, bss) < 0) 6960 goto nla_put_failure; 6961 6962 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) { 6963 nl80211_set_regulatory_flags(drv, &result); 6964 return wpa_driver_nl80211_postprocess_modes(result.modes, 6965 num_modes); 6966 } 6967 msg = NULL; 6968 nla_put_failure: 6969 nlmsg_free(msg); 6970 return NULL; 6971} 6972 6973 6974static int wpa_driver_nl80211_send_mntr(struct wpa_driver_nl80211_data *drv, 6975 const void *data, size_t len, 6976 int encrypt, int noack) 6977{ 6978 __u8 rtap_hdr[] = { 6979 0x00, 0x00, /* radiotap version */ 6980 0x0e, 0x00, /* radiotap length */ 6981 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */ 6982 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */ 6983 0x00, /* padding */ 6984 0x00, 0x00, /* RX and TX flags to indicate that */ 6985 0x00, 0x00, /* this is the injected frame directly */ 6986 }; 6987 struct iovec iov[2] = { 6988 { 6989 .iov_base = &rtap_hdr, 6990 .iov_len = sizeof(rtap_hdr), 6991 }, 6992 { 6993 .iov_base = (void *) data, 6994 .iov_len = len, 6995 } 6996 }; 6997 struct msghdr msg = { 6998 .msg_name = NULL, 6999 .msg_namelen = 0, 7000 .msg_iov = iov, 7001 .msg_iovlen = 2, 7002 .msg_control = NULL, 7003 .msg_controllen = 0, 7004 .msg_flags = 0, 7005 }; 7006 int res; 7007 u16 txflags = 0; 7008 7009 if (encrypt) 7010 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP; 7011 7012 if (drv->monitor_sock < 0) { 7013 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available " 7014 "for %s", __func__); 7015 return -1; 7016 } 7017 7018 if (noack) 7019 txflags |= IEEE80211_RADIOTAP_F_TX_NOACK; 7020 WPA_PUT_LE16(&rtap_hdr[12], txflags); 7021 7022 res = sendmsg(drv->monitor_sock, &msg, 0); 7023 if (res < 0) { 7024 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno)); 7025 return -1; 7026 } 7027 return 0; 7028} 7029 7030 7031static int wpa_driver_nl80211_send_frame(struct i802_bss *bss, 7032 const void *data, size_t len, 7033 int encrypt, int noack, 7034 unsigned int freq, int no_cck, 7035 int offchanok, unsigned int wait_time) 7036{ 7037 struct wpa_driver_nl80211_data *drv = bss->drv; 7038 u64 cookie; 7039 int res; 7040 7041 if (freq == 0 && drv->nlmode == NL80211_IFTYPE_ADHOC) { 7042 freq = nl80211_get_assoc_freq(drv); 7043 wpa_printf(MSG_DEBUG, 7044 "nl80211: send_frame - Use assoc_freq=%u for IBSS", 7045 freq); 7046 } 7047 if (freq == 0) { 7048 wpa_printf(MSG_DEBUG, "nl80211: send_frame - Use bss->freq=%u", 7049 bss->freq); 7050 freq = bss->freq; 7051 } 7052 7053 if (drv->use_monitor) { 7054 wpa_printf(MSG_DEBUG, "nl80211: send_frame(freq=%u bss->freq=%u) -> send_mntr", 7055 freq, bss->freq); 7056 return wpa_driver_nl80211_send_mntr(drv, data, len, 7057 encrypt, noack); 7058 } 7059 7060 wpa_printf(MSG_DEBUG, "nl80211: send_frame -> send_frame_cmd"); 7061 res = nl80211_send_frame_cmd(bss, freq, wait_time, data, len, 7062 &cookie, no_cck, noack, offchanok); 7063 if (res == 0 && !noack) { 7064 const struct ieee80211_mgmt *mgmt; 7065 u16 fc; 7066 7067 mgmt = (const struct ieee80211_mgmt *) data; 7068 fc = le_to_host16(mgmt->frame_control); 7069 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 7070 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_ACTION) { 7071 wpa_printf(MSG_MSGDUMP, 7072 "nl80211: Update send_action_cookie from 0x%llx to 0x%llx", 7073 (long long unsigned int) 7074 drv->send_action_cookie, 7075 (long long unsigned int) cookie); 7076 drv->send_action_cookie = cookie; 7077 } 7078 } 7079 7080 return res; 7081} 7082 7083 7084static int wpa_driver_nl80211_send_mlme(struct i802_bss *bss, const u8 *data, 7085 size_t data_len, int noack, 7086 unsigned int freq, int no_cck, 7087 int offchanok, 7088 unsigned int wait_time) 7089{ 7090 struct wpa_driver_nl80211_data *drv = bss->drv; 7091 struct ieee80211_mgmt *mgmt; 7092 int encrypt = 1; 7093 u16 fc; 7094 7095 mgmt = (struct ieee80211_mgmt *) data; 7096 fc = le_to_host16(mgmt->frame_control); 7097 wpa_printf(MSG_DEBUG, "nl80211: send_mlme - da= " MACSTR 7098 " noack=%d freq=%u no_cck=%d offchanok=%d wait_time=%u fc=0x%x (%s) nlmode=%d", 7099 MAC2STR(mgmt->da), noack, freq, no_cck, offchanok, wait_time, 7100 fc, fc2str(fc), drv->nlmode); 7101 7102 if ((is_sta_interface(drv->nlmode) || 7103 drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) && 7104 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 7105 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) { 7106 /* 7107 * The use of last_mgmt_freq is a bit of a hack, 7108 * but it works due to the single-threaded nature 7109 * of wpa_supplicant. 7110 */ 7111 if (freq == 0) { 7112 wpa_printf(MSG_DEBUG, "nl80211: Use last_mgmt_freq=%d", 7113 drv->last_mgmt_freq); 7114 freq = drv->last_mgmt_freq; 7115 } 7116 return nl80211_send_frame_cmd(bss, freq, 0, 7117 data, data_len, NULL, 1, noack, 7118 1); 7119 } 7120 7121 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) { 7122 if (freq == 0) { 7123 wpa_printf(MSG_DEBUG, "nl80211: Use bss->freq=%d", 7124 bss->freq); 7125 freq = bss->freq; 7126 } 7127 return nl80211_send_frame_cmd(bss, freq, 7128 (int) freq == bss->freq ? 0 : 7129 wait_time, 7130 data, data_len, 7131 &drv->send_action_cookie, 7132 no_cck, noack, offchanok); 7133 } 7134 7135 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 7136 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) { 7137 /* 7138 * Only one of the authentication frame types is encrypted. 7139 * In order for static WEP encryption to work properly (i.e., 7140 * to not encrypt the frame), we need to tell mac80211 about 7141 * the frames that must not be encrypted. 7142 */ 7143 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg); 7144 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction); 7145 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3) 7146 encrypt = 0; 7147 } 7148 7149 wpa_printf(MSG_DEBUG, "nl80211: send_mlme -> send_frame"); 7150 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 7151 noack, freq, no_cck, offchanok, 7152 wait_time); 7153} 7154 7155 7156static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble, 7157 int slot, int ht_opmode, int ap_isolate, 7158 int *basic_rates) 7159{ 7160 struct wpa_driver_nl80211_data *drv = bss->drv; 7161 struct nl_msg *msg; 7162 7163 msg = nlmsg_alloc(); 7164 if (!msg) 7165 return -ENOMEM; 7166 7167 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS); 7168 7169 if (cts >= 0) 7170 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts); 7171 if (preamble >= 0) 7172 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble); 7173 if (slot >= 0) 7174 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot); 7175 if (ht_opmode >= 0) 7176 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode); 7177 if (ap_isolate >= 0) 7178 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate); 7179 7180 if (basic_rates) { 7181 u8 rates[NL80211_MAX_SUPP_RATES]; 7182 u8 rates_len = 0; 7183 int i; 7184 7185 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; 7186 i++) 7187 rates[rates_len++] = basic_rates[i] / 5; 7188 7189 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates); 7190 } 7191 7192 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 7193 7194 return send_and_recv_msgs(drv, msg, NULL, NULL); 7195 nla_put_failure: 7196 nlmsg_free(msg); 7197 return -ENOBUFS; 7198} 7199 7200 7201static int wpa_driver_nl80211_set_acl(void *priv, 7202 struct hostapd_acl_params *params) 7203{ 7204 struct i802_bss *bss = priv; 7205 struct wpa_driver_nl80211_data *drv = bss->drv; 7206 struct nl_msg *msg; 7207 struct nlattr *acl; 7208 unsigned int i; 7209 int ret = 0; 7210 7211 if (!(drv->capa.max_acl_mac_addrs)) 7212 return -ENOTSUP; 7213 7214 if (params->num_mac_acl > drv->capa.max_acl_mac_addrs) 7215 return -ENOTSUP; 7216 7217 msg = nlmsg_alloc(); 7218 if (!msg) 7219 return -ENOMEM; 7220 7221 wpa_printf(MSG_DEBUG, "nl80211: Set %s ACL (num_mac_acl=%u)", 7222 params->acl_policy ? "Accept" : "Deny", params->num_mac_acl); 7223 7224 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_MAC_ACL); 7225 7226 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7227 7228 NLA_PUT_U32(msg, NL80211_ATTR_ACL_POLICY, params->acl_policy ? 7229 NL80211_ACL_POLICY_DENY_UNLESS_LISTED : 7230 NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED); 7231 7232 acl = nla_nest_start(msg, NL80211_ATTR_MAC_ADDRS); 7233 if (acl == NULL) 7234 goto nla_put_failure; 7235 7236 for (i = 0; i < params->num_mac_acl; i++) 7237 NLA_PUT(msg, i + 1, ETH_ALEN, params->mac_acl[i].addr); 7238 7239 nla_nest_end(msg, acl); 7240 7241 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7242 msg = NULL; 7243 if (ret) { 7244 wpa_printf(MSG_DEBUG, "nl80211: Failed to set MAC ACL: %d (%s)", 7245 ret, strerror(-ret)); 7246 } 7247 7248nla_put_failure: 7249 nlmsg_free(msg); 7250 7251 return ret; 7252} 7253 7254 7255static int wpa_driver_nl80211_set_ap(void *priv, 7256 struct wpa_driver_ap_params *params) 7257{ 7258 struct i802_bss *bss = priv; 7259 struct wpa_driver_nl80211_data *drv = bss->drv; 7260 struct nl_msg *msg; 7261 u8 cmd = NL80211_CMD_NEW_BEACON; 7262 int ret; 7263 int beacon_set; 7264 int ifindex = if_nametoindex(bss->ifname); 7265 int num_suites; 7266 u32 suites[10], suite; 7267 u32 ver; 7268 7269 beacon_set = bss->beacon_set; 7270 7271 msg = nlmsg_alloc(); 7272 if (!msg) 7273 return -ENOMEM; 7274 7275 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)", 7276 beacon_set); 7277 if (beacon_set) 7278 cmd = NL80211_CMD_SET_BEACON; 7279 7280 nl80211_cmd(drv, msg, 0, cmd); 7281 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon head", 7282 params->head, params->head_len); 7283 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head); 7284 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon tail", 7285 params->tail, params->tail_len); 7286 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail); 7287 wpa_printf(MSG_DEBUG, "nl80211: ifindex=%d", ifindex); 7288 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 7289 wpa_printf(MSG_DEBUG, "nl80211: beacon_int=%d", params->beacon_int); 7290 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int); 7291 wpa_printf(MSG_DEBUG, "nl80211: dtim_period=%d", params->dtim_period); 7292 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period); 7293 wpa_hexdump_ascii(MSG_DEBUG, "nl80211: ssid", 7294 params->ssid, params->ssid_len); 7295 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7296 params->ssid); 7297 if (params->proberesp && params->proberesp_len) { 7298 wpa_hexdump(MSG_DEBUG, "nl80211: proberesp (offload)", 7299 params->proberesp, params->proberesp_len); 7300 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len, 7301 params->proberesp); 7302 } 7303 switch (params->hide_ssid) { 7304 case NO_SSID_HIDING: 7305 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID not in use"); 7306 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 7307 NL80211_HIDDEN_SSID_NOT_IN_USE); 7308 break; 7309 case HIDDEN_SSID_ZERO_LEN: 7310 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero len"); 7311 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 7312 NL80211_HIDDEN_SSID_ZERO_LEN); 7313 break; 7314 case HIDDEN_SSID_ZERO_CONTENTS: 7315 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero contents"); 7316 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 7317 NL80211_HIDDEN_SSID_ZERO_CONTENTS); 7318 break; 7319 } 7320 wpa_printf(MSG_DEBUG, "nl80211: privacy=%d", params->privacy); 7321 if (params->privacy) 7322 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 7323 wpa_printf(MSG_DEBUG, "nl80211: auth_algs=0x%x", params->auth_algs); 7324 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) == 7325 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) { 7326 /* Leave out the attribute */ 7327 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED) 7328 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 7329 NL80211_AUTHTYPE_SHARED_KEY); 7330 else 7331 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 7332 NL80211_AUTHTYPE_OPEN_SYSTEM); 7333 7334 wpa_printf(MSG_DEBUG, "nl80211: wpa_version=0x%x", params->wpa_version); 7335 ver = 0; 7336 if (params->wpa_version & WPA_PROTO_WPA) 7337 ver |= NL80211_WPA_VERSION_1; 7338 if (params->wpa_version & WPA_PROTO_RSN) 7339 ver |= NL80211_WPA_VERSION_2; 7340 if (ver) 7341 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 7342 7343 wpa_printf(MSG_DEBUG, "nl80211: key_mgmt_suites=0x%x", 7344 params->key_mgmt_suites); 7345 num_suites = 0; 7346 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X) 7347 suites[num_suites++] = WLAN_AKM_SUITE_8021X; 7348 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK) 7349 suites[num_suites++] = WLAN_AKM_SUITE_PSK; 7350 if (num_suites) { 7351 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES, 7352 num_suites * sizeof(u32), suites); 7353 } 7354 7355 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X && 7356 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)) 7357 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT); 7358 7359 wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x", 7360 params->pairwise_ciphers); 7361 num_suites = wpa_cipher_to_cipher_suites(params->pairwise_ciphers, 7362 suites, ARRAY_SIZE(suites)); 7363 if (num_suites) { 7364 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, 7365 num_suites * sizeof(u32), suites); 7366 } 7367 7368 wpa_printf(MSG_DEBUG, "nl80211: group_cipher=0x%x", 7369 params->group_cipher); 7370 suite = wpa_cipher_to_cipher_suite(params->group_cipher); 7371 if (suite) 7372 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, suite); 7373 7374 if (params->beacon_ies) { 7375 wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies", 7376 params->beacon_ies); 7377 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies), 7378 wpabuf_head(params->beacon_ies)); 7379 } 7380 if (params->proberesp_ies) { 7381 wpa_hexdump_buf(MSG_DEBUG, "nl80211: proberesp_ies", 7382 params->proberesp_ies); 7383 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, 7384 wpabuf_len(params->proberesp_ies), 7385 wpabuf_head(params->proberesp_ies)); 7386 } 7387 if (params->assocresp_ies) { 7388 wpa_hexdump_buf(MSG_DEBUG, "nl80211: assocresp_ies", 7389 params->assocresp_ies); 7390 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP, 7391 wpabuf_len(params->assocresp_ies), 7392 wpabuf_head(params->assocresp_ies)); 7393 } 7394 7395 if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) { 7396 wpa_printf(MSG_DEBUG, "nl80211: ap_max_inactivity=%d", 7397 params->ap_max_inactivity); 7398 NLA_PUT_U16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT, 7399 params->ap_max_inactivity); 7400 } 7401 7402 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7403 if (ret) { 7404 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)", 7405 ret, strerror(-ret)); 7406 } else { 7407 bss->beacon_set = 1; 7408 nl80211_set_bss(bss, params->cts_protect, params->preamble, 7409 params->short_slot_time, params->ht_opmode, 7410 params->isolate, params->basic_rates); 7411 if (beacon_set && params->freq && 7412 params->freq->bandwidth != bss->bandwidth) { 7413 wpa_printf(MSG_DEBUG, 7414 "nl80211: Update BSS %s bandwidth: %d -> %d", 7415 bss->ifname, bss->bandwidth, 7416 params->freq->bandwidth); 7417 ret = nl80211_set_channel(bss, params->freq, 1); 7418 if (ret) { 7419 wpa_printf(MSG_DEBUG, 7420 "nl80211: Frequency set failed: %d (%s)", 7421 ret, strerror(-ret)); 7422 } else { 7423 wpa_printf(MSG_DEBUG, 7424 "nl80211: Frequency set succeeded for ht2040 coex"); 7425 bss->bandwidth = params->freq->bandwidth; 7426 } 7427 } else if (!beacon_set) { 7428 /* 7429 * cfg80211 updates the driver on frequence change in AP 7430 * mode only at the point when beaconing is started, so 7431 * set the initial value here. 7432 */ 7433 bss->bandwidth = params->freq->bandwidth; 7434 } 7435 } 7436 return ret; 7437 nla_put_failure: 7438 nlmsg_free(msg); 7439 return -ENOBUFS; 7440} 7441 7442 7443static int nl80211_put_freq_params(struct nl_msg *msg, 7444 struct hostapd_freq_params *freq) 7445{ 7446 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); 7447 if (freq->vht_enabled) { 7448 switch (freq->bandwidth) { 7449 case 20: 7450 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7451 NL80211_CHAN_WIDTH_20); 7452 break; 7453 case 40: 7454 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7455 NL80211_CHAN_WIDTH_40); 7456 break; 7457 case 80: 7458 if (freq->center_freq2) 7459 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7460 NL80211_CHAN_WIDTH_80P80); 7461 else 7462 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7463 NL80211_CHAN_WIDTH_80); 7464 break; 7465 case 160: 7466 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7467 NL80211_CHAN_WIDTH_160); 7468 break; 7469 default: 7470 return -EINVAL; 7471 } 7472 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); 7473 if (freq->center_freq2) 7474 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, 7475 freq->center_freq2); 7476 } else if (freq->ht_enabled) { 7477 switch (freq->sec_channel_offset) { 7478 case -1: 7479 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 7480 NL80211_CHAN_HT40MINUS); 7481 break; 7482 case 1: 7483 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 7484 NL80211_CHAN_HT40PLUS); 7485 break; 7486 default: 7487 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 7488 NL80211_CHAN_HT20); 7489 break; 7490 } 7491 } 7492 return 0; 7493 7494nla_put_failure: 7495 return -ENOBUFS; 7496} 7497 7498 7499static int nl80211_set_channel(struct i802_bss *bss, 7500 struct hostapd_freq_params *freq, int set_chan) 7501{ 7502 struct wpa_driver_nl80211_data *drv = bss->drv; 7503 struct nl_msg *msg; 7504 int ret; 7505 7506 wpa_printf(MSG_DEBUG, 7507 "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d, bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)", 7508 freq->freq, freq->ht_enabled, freq->vht_enabled, 7509 freq->bandwidth, freq->center_freq1, freq->center_freq2); 7510 msg = nlmsg_alloc(); 7511 if (!msg) 7512 return -1; 7513 7514 nl80211_cmd(drv, msg, 0, set_chan ? NL80211_CMD_SET_CHANNEL : 7515 NL80211_CMD_SET_WIPHY); 7516 7517 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7518 if (nl80211_put_freq_params(msg, freq) < 0) 7519 goto nla_put_failure; 7520 7521 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7522 msg = NULL; 7523 if (ret == 0) { 7524 bss->freq = freq->freq; 7525 return 0; 7526 } 7527 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): " 7528 "%d (%s)", freq->freq, ret, strerror(-ret)); 7529nla_put_failure: 7530 nlmsg_free(msg); 7531 return -1; 7532} 7533 7534 7535static u32 sta_flags_nl80211(int flags) 7536{ 7537 u32 f = 0; 7538 7539 if (flags & WPA_STA_AUTHORIZED) 7540 f |= BIT(NL80211_STA_FLAG_AUTHORIZED); 7541 if (flags & WPA_STA_WMM) 7542 f |= BIT(NL80211_STA_FLAG_WME); 7543 if (flags & WPA_STA_SHORT_PREAMBLE) 7544 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); 7545 if (flags & WPA_STA_MFP) 7546 f |= BIT(NL80211_STA_FLAG_MFP); 7547 if (flags & WPA_STA_TDLS_PEER) 7548 f |= BIT(NL80211_STA_FLAG_TDLS_PEER); 7549 7550 return f; 7551} 7552 7553 7554static int wpa_driver_nl80211_sta_add(void *priv, 7555 struct hostapd_sta_add_params *params) 7556{ 7557 struct i802_bss *bss = priv; 7558 struct wpa_driver_nl80211_data *drv = bss->drv; 7559 struct nl_msg *msg; 7560 struct nl80211_sta_flag_update upd; 7561 int ret = -ENOBUFS; 7562 7563 if ((params->flags & WPA_STA_TDLS_PEER) && 7564 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 7565 return -EOPNOTSUPP; 7566 7567 msg = nlmsg_alloc(); 7568 if (!msg) 7569 return -ENOMEM; 7570 7571 wpa_printf(MSG_DEBUG, "nl80211: %s STA " MACSTR, 7572 params->set ? "Set" : "Add", MAC2STR(params->addr)); 7573 nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION : 7574 NL80211_CMD_NEW_STATION); 7575 7576 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 7577 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr); 7578 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len, 7579 params->supp_rates); 7580 wpa_hexdump(MSG_DEBUG, " * supported rates", params->supp_rates, 7581 params->supp_rates_len); 7582 if (!params->set) { 7583 if (params->aid) { 7584 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid); 7585 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid); 7586 } else { 7587 /* 7588 * cfg80211 validates that AID is non-zero, so we have 7589 * to make this a non-zero value for the TDLS case where 7590 * a dummy STA entry is used for now. 7591 */ 7592 wpa_printf(MSG_DEBUG, " * aid=1 (TDLS workaround)"); 7593 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, 1); 7594 } 7595 wpa_printf(MSG_DEBUG, " * listen_interval=%u", 7596 params->listen_interval); 7597 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, 7598 params->listen_interval); 7599 } else if (params->aid && (params->flags & WPA_STA_TDLS_PEER)) { 7600 wpa_printf(MSG_DEBUG, " * peer_aid=%u", params->aid); 7601 NLA_PUT_U16(msg, NL80211_ATTR_PEER_AID, params->aid); 7602 } 7603 if (params->ht_capabilities) { 7604 wpa_hexdump(MSG_DEBUG, " * ht_capabilities", 7605 (u8 *) params->ht_capabilities, 7606 sizeof(*params->ht_capabilities)); 7607 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, 7608 sizeof(*params->ht_capabilities), 7609 params->ht_capabilities); 7610 } 7611 7612 if (params->vht_capabilities) { 7613 wpa_hexdump(MSG_DEBUG, " * vht_capabilities", 7614 (u8 *) params->vht_capabilities, 7615 sizeof(*params->vht_capabilities)); 7616 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, 7617 sizeof(*params->vht_capabilities), 7618 params->vht_capabilities); 7619 } 7620 7621 if (params->vht_opmode_enabled) { 7622 wpa_printf(MSG_DEBUG, " * opmode=%u", params->vht_opmode); 7623 NLA_PUT_U8(msg, NL80211_ATTR_OPMODE_NOTIF, 7624 params->vht_opmode); 7625 } 7626 7627 wpa_printf(MSG_DEBUG, " * capability=0x%x", params->capability); 7628 NLA_PUT_U16(msg, NL80211_ATTR_STA_CAPABILITY, params->capability); 7629 7630 if (params->ext_capab) { 7631 wpa_hexdump(MSG_DEBUG, " * ext_capab", 7632 params->ext_capab, params->ext_capab_len); 7633 NLA_PUT(msg, NL80211_ATTR_STA_EXT_CAPABILITY, 7634 params->ext_capab_len, params->ext_capab); 7635 } 7636 7637 if (params->supp_channels) { 7638 wpa_hexdump(MSG_DEBUG, " * supported channels", 7639 params->supp_channels, params->supp_channels_len); 7640 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_CHANNELS, 7641 params->supp_channels_len, params->supp_channels); 7642 } 7643 7644 if (params->supp_oper_classes) { 7645 wpa_hexdump(MSG_DEBUG, " * supported operating classes", 7646 params->supp_oper_classes, 7647 params->supp_oper_classes_len); 7648 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES, 7649 params->supp_oper_classes_len, 7650 params->supp_oper_classes); 7651 } 7652 7653 os_memset(&upd, 0, sizeof(upd)); 7654 upd.mask = sta_flags_nl80211(params->flags); 7655 upd.set = upd.mask; 7656 wpa_printf(MSG_DEBUG, " * flags set=0x%x mask=0x%x", 7657 upd.set, upd.mask); 7658 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 7659 7660 if (params->flags & WPA_STA_WMM) { 7661 struct nlattr *wme = nla_nest_start(msg, NL80211_ATTR_STA_WME); 7662 7663 if (!wme) 7664 goto nla_put_failure; 7665 7666 wpa_printf(MSG_DEBUG, " * qosinfo=0x%x", params->qosinfo); 7667 NLA_PUT_U8(msg, NL80211_STA_WME_UAPSD_QUEUES, 7668 params->qosinfo & WMM_QOSINFO_STA_AC_MASK); 7669 NLA_PUT_U8(msg, NL80211_STA_WME_MAX_SP, 7670 (params->qosinfo >> WMM_QOSINFO_STA_SP_SHIFT) & 7671 WMM_QOSINFO_STA_SP_MASK); 7672 nla_nest_end(msg, wme); 7673 } 7674 7675 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7676 msg = NULL; 7677 if (ret) 7678 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION " 7679 "result: %d (%s)", params->set ? "SET" : "NEW", ret, 7680 strerror(-ret)); 7681 if (ret == -EEXIST) 7682 ret = 0; 7683 nla_put_failure: 7684 nlmsg_free(msg); 7685 return ret; 7686} 7687 7688 7689static int wpa_driver_nl80211_sta_remove(struct i802_bss *bss, const u8 *addr) 7690{ 7691 struct wpa_driver_nl80211_data *drv = bss->drv; 7692 struct nl_msg *msg; 7693 int ret; 7694 7695 msg = nlmsg_alloc(); 7696 if (!msg) 7697 return -ENOMEM; 7698 7699 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 7700 7701 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 7702 if_nametoindex(bss->ifname)); 7703 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 7704 7705 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7706 wpa_printf(MSG_DEBUG, "nl80211: sta_remove -> DEL_STATION %s " MACSTR 7707 " --> %d (%s)", 7708 bss->ifname, MAC2STR(addr), ret, strerror(-ret)); 7709 if (ret == -ENOENT) 7710 return 0; 7711 return ret; 7712 nla_put_failure: 7713 nlmsg_free(msg); 7714 return -ENOBUFS; 7715} 7716 7717 7718static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, 7719 int ifidx) 7720{ 7721 struct nl_msg *msg; 7722 struct wpa_driver_nl80211_data *drv2; 7723 7724 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx); 7725 7726 /* stop listening for EAPOL on this interface */ 7727 dl_list_for_each(drv2, &drv->global->interfaces, 7728 struct wpa_driver_nl80211_data, list) 7729 del_ifidx(drv2, ifidx); 7730 7731 msg = nlmsg_alloc(); 7732 if (!msg) 7733 goto nla_put_failure; 7734 7735 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 7736 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx); 7737 7738 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 7739 return; 7740 msg = NULL; 7741 nla_put_failure: 7742 nlmsg_free(msg); 7743 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx); 7744} 7745 7746 7747static const char * nl80211_iftype_str(enum nl80211_iftype mode) 7748{ 7749 switch (mode) { 7750 case NL80211_IFTYPE_ADHOC: 7751 return "ADHOC"; 7752 case NL80211_IFTYPE_STATION: 7753 return "STATION"; 7754 case NL80211_IFTYPE_AP: 7755 return "AP"; 7756 case NL80211_IFTYPE_AP_VLAN: 7757 return "AP_VLAN"; 7758 case NL80211_IFTYPE_WDS: 7759 return "WDS"; 7760 case NL80211_IFTYPE_MONITOR: 7761 return "MONITOR"; 7762 case NL80211_IFTYPE_MESH_POINT: 7763 return "MESH_POINT"; 7764 case NL80211_IFTYPE_P2P_CLIENT: 7765 return "P2P_CLIENT"; 7766 case NL80211_IFTYPE_P2P_GO: 7767 return "P2P_GO"; 7768 case NL80211_IFTYPE_P2P_DEVICE: 7769 return "P2P_DEVICE"; 7770 default: 7771 return "unknown"; 7772 } 7773} 7774 7775 7776static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv, 7777 const char *ifname, 7778 enum nl80211_iftype iftype, 7779 const u8 *addr, int wds, 7780 int (*handler)(struct nl_msg *, void *), 7781 void *arg) 7782{ 7783 struct nl_msg *msg; 7784 int ifidx; 7785 int ret = -ENOBUFS; 7786 7787 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)", 7788 iftype, nl80211_iftype_str(iftype)); 7789 7790 msg = nlmsg_alloc(); 7791 if (!msg) 7792 return -1; 7793 7794 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE); 7795 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 7796 goto nla_put_failure; 7797 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname); 7798 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype); 7799 7800 if (iftype == NL80211_IFTYPE_MONITOR) { 7801 struct nlattr *flags; 7802 7803 flags = nla_nest_start(msg, NL80211_ATTR_MNTR_FLAGS); 7804 if (!flags) 7805 goto nla_put_failure; 7806 7807 NLA_PUT_FLAG(msg, NL80211_MNTR_FLAG_COOK_FRAMES); 7808 7809 nla_nest_end(msg, flags); 7810 } else if (wds) { 7811 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds); 7812 } 7813 7814 /* 7815 * Tell cfg80211 that the interface belongs to the socket that created 7816 * it, and the interface should be deleted when the socket is closed. 7817 */ 7818 NLA_PUT_FLAG(msg, NL80211_ATTR_IFACE_SOCKET_OWNER); 7819 7820 ret = send_and_recv_msgs(drv, msg, handler, arg); 7821 msg = NULL; 7822 if (ret) { 7823 nla_put_failure: 7824 nlmsg_free(msg); 7825 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)", 7826 ifname, ret, strerror(-ret)); 7827 return ret; 7828 } 7829 7830 if (iftype == NL80211_IFTYPE_P2P_DEVICE) 7831 return 0; 7832 7833 ifidx = if_nametoindex(ifname); 7834 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d", 7835 ifname, ifidx); 7836 7837 if (ifidx <= 0) 7838 return -1; 7839 7840 /* 7841 * Some virtual interfaces need to process EAPOL packets and events on 7842 * the parent interface. This is used mainly with hostapd. 7843 */ 7844 if (drv->hostapd || 7845 iftype == NL80211_IFTYPE_AP_VLAN || 7846 iftype == NL80211_IFTYPE_WDS || 7847 iftype == NL80211_IFTYPE_MONITOR) { 7848 /* start listening for EAPOL on this interface */ 7849 add_ifidx(drv, ifidx); 7850 } 7851 7852 if (addr && iftype != NL80211_IFTYPE_MONITOR && 7853 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) { 7854 nl80211_remove_iface(drv, ifidx); 7855 return -1; 7856 } 7857 7858 return ifidx; 7859} 7860 7861 7862static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv, 7863 const char *ifname, enum nl80211_iftype iftype, 7864 const u8 *addr, int wds, 7865 int (*handler)(struct nl_msg *, void *), 7866 void *arg, int use_existing) 7867{ 7868 int ret; 7869 7870 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds, handler, 7871 arg); 7872 7873 /* if error occurred and interface exists already */ 7874 if (ret == -ENFILE && if_nametoindex(ifname)) { 7875 if (use_existing) { 7876 wpa_printf(MSG_DEBUG, "nl80211: Continue using existing interface %s", 7877 ifname); 7878 if (addr && iftype != NL80211_IFTYPE_MONITOR && 7879 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 7880 addr) < 0 && 7881 (linux_set_iface_flags(drv->global->ioctl_sock, 7882 ifname, 0) < 0 || 7883 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 7884 addr) < 0 || 7885 linux_set_iface_flags(drv->global->ioctl_sock, 7886 ifname, 1) < 0)) 7887 return -1; 7888 return -ENFILE; 7889 } 7890 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname); 7891 7892 /* Try to remove the interface that was already there. */ 7893 nl80211_remove_iface(drv, if_nametoindex(ifname)); 7894 7895 /* Try to create the interface again */ 7896 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, 7897 wds, handler, arg); 7898 } 7899 7900 if (ret >= 0 && is_p2p_net_interface(iftype)) 7901 nl80211_disable_11b_rates(drv, ret, 1); 7902 7903 return ret; 7904} 7905 7906 7907static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok) 7908{ 7909 struct ieee80211_hdr *hdr; 7910 u16 fc; 7911 union wpa_event_data event; 7912 7913 hdr = (struct ieee80211_hdr *) buf; 7914 fc = le_to_host16(hdr->frame_control); 7915 7916 os_memset(&event, 0, sizeof(event)); 7917 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 7918 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 7919 event.tx_status.dst = hdr->addr1; 7920 event.tx_status.data = buf; 7921 event.tx_status.data_len = len; 7922 event.tx_status.ack = ok; 7923 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event); 7924} 7925 7926 7927static void from_unknown_sta(struct wpa_driver_nl80211_data *drv, 7928 u8 *buf, size_t len) 7929{ 7930 struct ieee80211_hdr *hdr = (void *)buf; 7931 u16 fc; 7932 union wpa_event_data event; 7933 7934 if (len < sizeof(*hdr)) 7935 return; 7936 7937 fc = le_to_host16(hdr->frame_control); 7938 7939 os_memset(&event, 0, sizeof(event)); 7940 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len); 7941 event.rx_from_unknown.addr = hdr->addr2; 7942 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) == 7943 (WLAN_FC_FROMDS | WLAN_FC_TODS); 7944 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 7945} 7946 7947 7948static void handle_frame(struct wpa_driver_nl80211_data *drv, 7949 u8 *buf, size_t len, int datarate, int ssi_signal) 7950{ 7951 struct ieee80211_hdr *hdr; 7952 u16 fc; 7953 union wpa_event_data event; 7954 7955 hdr = (struct ieee80211_hdr *) buf; 7956 fc = le_to_host16(hdr->frame_control); 7957 7958 switch (WLAN_FC_GET_TYPE(fc)) { 7959 case WLAN_FC_TYPE_MGMT: 7960 os_memset(&event, 0, sizeof(event)); 7961 event.rx_mgmt.frame = buf; 7962 event.rx_mgmt.frame_len = len; 7963 event.rx_mgmt.datarate = datarate; 7964 event.rx_mgmt.ssi_signal = ssi_signal; 7965 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 7966 break; 7967 case WLAN_FC_TYPE_CTRL: 7968 /* can only get here with PS-Poll frames */ 7969 wpa_printf(MSG_DEBUG, "CTRL"); 7970 from_unknown_sta(drv, buf, len); 7971 break; 7972 case WLAN_FC_TYPE_DATA: 7973 from_unknown_sta(drv, buf, len); 7974 break; 7975 } 7976} 7977 7978 7979static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx) 7980{ 7981 struct wpa_driver_nl80211_data *drv = eloop_ctx; 7982 int len; 7983 unsigned char buf[3000]; 7984 struct ieee80211_radiotap_iterator iter; 7985 int ret; 7986 int datarate = 0, ssi_signal = 0; 7987 int injected = 0, failed = 0, rxflags = 0; 7988 7989 len = recv(sock, buf, sizeof(buf), 0); 7990 if (len < 0) { 7991 wpa_printf(MSG_ERROR, "nl80211: Monitor socket recv failed: %s", 7992 strerror(errno)); 7993 return; 7994 } 7995 7996 if (ieee80211_radiotap_iterator_init(&iter, (void *) buf, len, NULL)) { 7997 wpa_printf(MSG_INFO, "nl80211: received invalid radiotap frame"); 7998 return; 7999 } 8000 8001 while (1) { 8002 ret = ieee80211_radiotap_iterator_next(&iter); 8003 if (ret == -ENOENT) 8004 break; 8005 if (ret) { 8006 wpa_printf(MSG_INFO, "nl80211: received invalid radiotap frame (%d)", 8007 ret); 8008 return; 8009 } 8010 switch (iter.this_arg_index) { 8011 case IEEE80211_RADIOTAP_FLAGS: 8012 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS) 8013 len -= 4; 8014 break; 8015 case IEEE80211_RADIOTAP_RX_FLAGS: 8016 rxflags = 1; 8017 break; 8018 case IEEE80211_RADIOTAP_TX_FLAGS: 8019 injected = 1; 8020 failed = le_to_host16((*(uint16_t *) iter.this_arg)) & 8021 IEEE80211_RADIOTAP_F_TX_FAIL; 8022 break; 8023 case IEEE80211_RADIOTAP_DATA_RETRIES: 8024 break; 8025 case IEEE80211_RADIOTAP_CHANNEL: 8026 /* TODO: convert from freq/flags to channel number */ 8027 break; 8028 case IEEE80211_RADIOTAP_RATE: 8029 datarate = *iter.this_arg * 5; 8030 break; 8031 case IEEE80211_RADIOTAP_DBM_ANTSIGNAL: 8032 ssi_signal = (s8) *iter.this_arg; 8033 break; 8034 } 8035 } 8036 8037 if (rxflags && injected) 8038 return; 8039 8040 if (!injected) 8041 handle_frame(drv, buf + iter._max_length, 8042 len - iter._max_length, datarate, ssi_signal); 8043 else 8044 handle_tx_callback(drv->ctx, buf + iter._max_length, 8045 len - iter._max_length, !failed); 8046} 8047 8048 8049/* 8050 * we post-process the filter code later and rewrite 8051 * this to the offset to the last instruction 8052 */ 8053#define PASS 0xFF 8054#define FAIL 0xFE 8055 8056static struct sock_filter msock_filter_insns[] = { 8057 /* 8058 * do a little-endian load of the radiotap length field 8059 */ 8060 /* load lower byte into A */ 8061 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2), 8062 /* put it into X (== index register) */ 8063 BPF_STMT(BPF_MISC| BPF_TAX, 0), 8064 /* load upper byte into A */ 8065 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3), 8066 /* left-shift it by 8 */ 8067 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8), 8068 /* or with X */ 8069 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0), 8070 /* put result into X */ 8071 BPF_STMT(BPF_MISC| BPF_TAX, 0), 8072 8073 /* 8074 * Allow management frames through, this also gives us those 8075 * management frames that we sent ourselves with status 8076 */ 8077 /* load the lower byte of the IEEE 802.11 frame control field */ 8078 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 8079 /* mask off frame type and version */ 8080 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF), 8081 /* accept frame if it's both 0, fall through otherwise */ 8082 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0), 8083 8084 /* 8085 * TODO: add a bit to radiotap RX flags that indicates 8086 * that the sending station is not associated, then 8087 * add a filter here that filters on our DA and that flag 8088 * to allow us to deauth frames to that bad station. 8089 * 8090 * For now allow all To DS data frames through. 8091 */ 8092 /* load the IEEE 802.11 frame control field */ 8093 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0), 8094 /* mask off frame type, version and DS status */ 8095 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03), 8096 /* accept frame if version 0, type 2 and To DS, fall through otherwise 8097 */ 8098 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0), 8099 8100#if 0 8101 /* 8102 * drop non-data frames 8103 */ 8104 /* load the lower byte of the frame control field */ 8105 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 8106 /* mask off QoS bit */ 8107 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c), 8108 /* drop non-data frames */ 8109 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL), 8110#endif 8111 /* load the upper byte of the frame control field */ 8112 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1), 8113 /* mask off toDS/fromDS */ 8114 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03), 8115 /* accept WDS frames */ 8116 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0), 8117 8118 /* 8119 * add header length to index 8120 */ 8121 /* load the lower byte of the frame control field */ 8122 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 8123 /* mask off QoS bit */ 8124 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80), 8125 /* right shift it by 6 to give 0 or 2 */ 8126 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6), 8127 /* add data frame header length */ 8128 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24), 8129 /* add index, was start of 802.11 header */ 8130 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), 8131 /* move to index, now start of LL header */ 8132 BPF_STMT(BPF_MISC | BPF_TAX, 0), 8133 8134 /* 8135 * Accept empty data frames, we use those for 8136 * polling activity. 8137 */ 8138 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0), 8139 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0), 8140 8141 /* 8142 * Accept EAPOL frames 8143 */ 8144 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0), 8145 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL), 8146 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4), 8147 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL), 8148 8149 /* keep these last two statements or change the code below */ 8150 /* return 0 == "DROP" */ 8151 BPF_STMT(BPF_RET | BPF_K, 0), 8152 /* return ~0 == "keep all" */ 8153 BPF_STMT(BPF_RET | BPF_K, ~0), 8154}; 8155 8156static struct sock_fprog msock_filter = { 8157 .len = ARRAY_SIZE(msock_filter_insns), 8158 .filter = msock_filter_insns, 8159}; 8160 8161 8162static int add_monitor_filter(int s) 8163{ 8164 int idx; 8165 8166 /* rewrite all PASS/FAIL jump offsets */ 8167 for (idx = 0; idx < msock_filter.len; idx++) { 8168 struct sock_filter *insn = &msock_filter_insns[idx]; 8169 8170 if (BPF_CLASS(insn->code) == BPF_JMP) { 8171 if (insn->code == (BPF_JMP|BPF_JA)) { 8172 if (insn->k == PASS) 8173 insn->k = msock_filter.len - idx - 2; 8174 else if (insn->k == FAIL) 8175 insn->k = msock_filter.len - idx - 3; 8176 } 8177 8178 if (insn->jt == PASS) 8179 insn->jt = msock_filter.len - idx - 2; 8180 else if (insn->jt == FAIL) 8181 insn->jt = msock_filter.len - idx - 3; 8182 8183 if (insn->jf == PASS) 8184 insn->jf = msock_filter.len - idx - 2; 8185 else if (insn->jf == FAIL) 8186 insn->jf = msock_filter.len - idx - 3; 8187 } 8188 } 8189 8190 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER, 8191 &msock_filter, sizeof(msock_filter))) { 8192 wpa_printf(MSG_ERROR, "nl80211: setsockopt(SO_ATTACH_FILTER) failed: %s", 8193 strerror(errno)); 8194 return -1; 8195 } 8196 8197 return 0; 8198} 8199 8200 8201static void nl80211_remove_monitor_interface( 8202 struct wpa_driver_nl80211_data *drv) 8203{ 8204 if (drv->monitor_refcount > 0) 8205 drv->monitor_refcount--; 8206 wpa_printf(MSG_DEBUG, "nl80211: Remove monitor interface: refcount=%d", 8207 drv->monitor_refcount); 8208 if (drv->monitor_refcount > 0) 8209 return; 8210 8211 if (drv->monitor_ifidx >= 0) { 8212 nl80211_remove_iface(drv, drv->monitor_ifidx); 8213 drv->monitor_ifidx = -1; 8214 } 8215 if (drv->monitor_sock >= 0) { 8216 eloop_unregister_read_sock(drv->monitor_sock); 8217 close(drv->monitor_sock); 8218 drv->monitor_sock = -1; 8219 } 8220} 8221 8222 8223static int 8224nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv) 8225{ 8226 char buf[IFNAMSIZ]; 8227 struct sockaddr_ll ll; 8228 int optval; 8229 socklen_t optlen; 8230 8231 if (drv->monitor_ifidx >= 0) { 8232 drv->monitor_refcount++; 8233 wpa_printf(MSG_DEBUG, "nl80211: Re-use existing monitor interface: refcount=%d", 8234 drv->monitor_refcount); 8235 return 0; 8236 } 8237 8238 if (os_strncmp(drv->first_bss->ifname, "p2p-", 4) == 0) { 8239 /* 8240 * P2P interface name is of the format p2p-%s-%d. For monitor 8241 * interface name corresponding to P2P GO, replace "p2p-" with 8242 * "mon-" to retain the same interface name length and to 8243 * indicate that it is a monitor interface. 8244 */ 8245 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss->ifname + 4); 8246 } else { 8247 /* Non-P2P interface with AP functionality. */ 8248 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss->ifname); 8249 } 8250 8251 buf[IFNAMSIZ - 1] = '\0'; 8252 8253 drv->monitor_ifidx = 8254 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL, 8255 0, NULL, NULL, 0); 8256 8257 if (drv->monitor_ifidx == -EOPNOTSUPP) { 8258 /* 8259 * This is backward compatibility for a few versions of 8260 * the kernel only that didn't advertise the right 8261 * attributes for the only driver that then supported 8262 * AP mode w/o monitor -- ath6kl. 8263 */ 8264 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support " 8265 "monitor interface type - try to run without it"); 8266 drv->device_ap_sme = 1; 8267 } 8268 8269 if (drv->monitor_ifidx < 0) 8270 return -1; 8271 8272 if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1)) 8273 goto error; 8274 8275 memset(&ll, 0, sizeof(ll)); 8276 ll.sll_family = AF_PACKET; 8277 ll.sll_ifindex = drv->monitor_ifidx; 8278 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)); 8279 if (drv->monitor_sock < 0) { 8280 wpa_printf(MSG_ERROR, "nl80211: socket[PF_PACKET,SOCK_RAW] failed: %s", 8281 strerror(errno)); 8282 goto error; 8283 } 8284 8285 if (add_monitor_filter(drv->monitor_sock)) { 8286 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor " 8287 "interface; do filtering in user space"); 8288 /* This works, but will cost in performance. */ 8289 } 8290 8291 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) { 8292 wpa_printf(MSG_ERROR, "nl80211: monitor socket bind failed: %s", 8293 strerror(errno)); 8294 goto error; 8295 } 8296 8297 optlen = sizeof(optval); 8298 optval = 20; 8299 if (setsockopt 8300 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) { 8301 wpa_printf(MSG_ERROR, "nl80211: Failed to set socket priority: %s", 8302 strerror(errno)); 8303 goto error; 8304 } 8305 8306 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read, 8307 drv, NULL)) { 8308 wpa_printf(MSG_INFO, "nl80211: Could not register monitor read socket"); 8309 goto error; 8310 } 8311 8312 drv->monitor_refcount++; 8313 return 0; 8314 error: 8315 nl80211_remove_monitor_interface(drv); 8316 return -1; 8317} 8318 8319 8320static int nl80211_setup_ap(struct i802_bss *bss) 8321{ 8322 struct wpa_driver_nl80211_data *drv = bss->drv; 8323 8324 wpa_printf(MSG_DEBUG, "nl80211: Setup AP(%s) - device_ap_sme=%d use_monitor=%d", 8325 bss->ifname, drv->device_ap_sme, drv->use_monitor); 8326 8327 /* 8328 * Disable Probe Request reporting unless we need it in this way for 8329 * devices that include the AP SME, in the other case (unless using 8330 * monitor iface) we'll get it through the nl_mgmt socket instead. 8331 */ 8332 if (!drv->device_ap_sme) 8333 wpa_driver_nl80211_probe_req_report(bss, 0); 8334 8335 if (!drv->device_ap_sme && !drv->use_monitor) 8336 if (nl80211_mgmt_subscribe_ap(bss)) 8337 return -1; 8338 8339 if (drv->device_ap_sme && !drv->use_monitor) 8340 if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) 8341 return -1; 8342 8343 if (!drv->device_ap_sme && drv->use_monitor && 8344 nl80211_create_monitor_interface(drv) && 8345 !drv->device_ap_sme) 8346 return -1; 8347 8348 if (drv->device_ap_sme && 8349 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) { 8350 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable " 8351 "Probe Request frame reporting in AP mode"); 8352 /* Try to survive without this */ 8353 } 8354 8355 return 0; 8356} 8357 8358 8359static void nl80211_teardown_ap(struct i802_bss *bss) 8360{ 8361 struct wpa_driver_nl80211_data *drv = bss->drv; 8362 8363 wpa_printf(MSG_DEBUG, "nl80211: Teardown AP(%s) - device_ap_sme=%d use_monitor=%d", 8364 bss->ifname, drv->device_ap_sme, drv->use_monitor); 8365 if (drv->device_ap_sme) { 8366 wpa_driver_nl80211_probe_req_report(bss, 0); 8367 if (!drv->use_monitor) 8368 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)"); 8369 } else if (drv->use_monitor) 8370 nl80211_remove_monitor_interface(drv); 8371 else 8372 nl80211_mgmt_unsubscribe(bss, "AP teardown"); 8373 8374 bss->beacon_set = 0; 8375} 8376 8377 8378static int nl80211_send_eapol_data(struct i802_bss *bss, 8379 const u8 *addr, const u8 *data, 8380 size_t data_len) 8381{ 8382 struct sockaddr_ll ll; 8383 int ret; 8384 8385 if (bss->drv->eapol_tx_sock < 0) { 8386 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL"); 8387 return -1; 8388 } 8389 8390 os_memset(&ll, 0, sizeof(ll)); 8391 ll.sll_family = AF_PACKET; 8392 ll.sll_ifindex = bss->ifindex; 8393 ll.sll_protocol = htons(ETH_P_PAE); 8394 ll.sll_halen = ETH_ALEN; 8395 os_memcpy(ll.sll_addr, addr, ETH_ALEN); 8396 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0, 8397 (struct sockaddr *) &ll, sizeof(ll)); 8398 if (ret < 0) 8399 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s", 8400 strerror(errno)); 8401 8402 return ret; 8403} 8404 8405 8406static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 8407 8408static int wpa_driver_nl80211_hapd_send_eapol( 8409 void *priv, const u8 *addr, const u8 *data, 8410 size_t data_len, int encrypt, const u8 *own_addr, u32 flags) 8411{ 8412 struct i802_bss *bss = priv; 8413 struct wpa_driver_nl80211_data *drv = bss->drv; 8414 struct ieee80211_hdr *hdr; 8415 size_t len; 8416 u8 *pos; 8417 int res; 8418 int qos = flags & WPA_STA_WMM; 8419 8420 if (drv->device_ap_sme || !drv->use_monitor) 8421 return nl80211_send_eapol_data(bss, addr, data, data_len); 8422 8423 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 + 8424 data_len; 8425 hdr = os_zalloc(len); 8426 if (hdr == NULL) { 8427 wpa_printf(MSG_INFO, "nl80211: Failed to allocate EAPOL buffer(len=%lu)", 8428 (unsigned long) len); 8429 return -1; 8430 } 8431 8432 hdr->frame_control = 8433 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA); 8434 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS); 8435 if (encrypt) 8436 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP); 8437 if (qos) { 8438 hdr->frame_control |= 8439 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4); 8440 } 8441 8442 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN); 8443 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 8444 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 8445 pos = (u8 *) (hdr + 1); 8446 8447 if (qos) { 8448 /* Set highest priority in QoS header */ 8449 pos[0] = 7; 8450 pos[1] = 0; 8451 pos += 2; 8452 } 8453 8454 memcpy(pos, rfc1042_header, sizeof(rfc1042_header)); 8455 pos += sizeof(rfc1042_header); 8456 WPA_PUT_BE16(pos, ETH_P_PAE); 8457 pos += 2; 8458 memcpy(pos, data, data_len); 8459 8460 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0, 8461 0, 0, 0, 0); 8462 if (res < 0) { 8463 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - " 8464 "failed: %d (%s)", 8465 (unsigned long) len, errno, strerror(errno)); 8466 } 8467 os_free(hdr); 8468 8469 return res; 8470} 8471 8472 8473static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr, 8474 int total_flags, 8475 int flags_or, int flags_and) 8476{ 8477 struct i802_bss *bss = priv; 8478 struct wpa_driver_nl80211_data *drv = bss->drv; 8479 struct nl_msg *msg; 8480 struct nlattr *flags; 8481 struct nl80211_sta_flag_update upd; 8482 8483 msg = nlmsg_alloc(); 8484 if (!msg) 8485 return -ENOMEM; 8486 8487 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8488 8489 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8490 if_nametoindex(bss->ifname)); 8491 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8492 8493 /* 8494 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This 8495 * can be removed eventually. 8496 */ 8497 flags = nla_nest_start(msg, NL80211_ATTR_STA_FLAGS); 8498 if (!flags) 8499 goto nla_put_failure; 8500 if (total_flags & WPA_STA_AUTHORIZED) 8501 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_AUTHORIZED); 8502 8503 if (total_flags & WPA_STA_WMM) 8504 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_WME); 8505 8506 if (total_flags & WPA_STA_SHORT_PREAMBLE) 8507 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_SHORT_PREAMBLE); 8508 8509 if (total_flags & WPA_STA_MFP) 8510 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_MFP); 8511 8512 if (total_flags & WPA_STA_TDLS_PEER) 8513 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_TDLS_PEER); 8514 8515 nla_nest_end(msg, flags); 8516 8517 os_memset(&upd, 0, sizeof(upd)); 8518 upd.mask = sta_flags_nl80211(flags_or | ~flags_and); 8519 upd.set = sta_flags_nl80211(flags_or); 8520 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 8521 8522 return send_and_recv_msgs(drv, msg, NULL, NULL); 8523 nla_put_failure: 8524 nlmsg_free(msg); 8525 return -ENOBUFS; 8526} 8527 8528 8529static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv, 8530 struct wpa_driver_associate_params *params) 8531{ 8532 enum nl80211_iftype nlmode, old_mode; 8533 struct hostapd_freq_params freq = { 8534 .freq = params->freq, 8535 }; 8536 8537 if (params->p2p) { 8538 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P " 8539 "group (GO)"); 8540 nlmode = NL80211_IFTYPE_P2P_GO; 8541 } else 8542 nlmode = NL80211_IFTYPE_AP; 8543 8544 old_mode = drv->nlmode; 8545 if (wpa_driver_nl80211_set_mode(drv->first_bss, nlmode)) { 8546 nl80211_remove_monitor_interface(drv); 8547 return -1; 8548 } 8549 8550 if (nl80211_set_channel(drv->first_bss, &freq, 0)) { 8551 if (old_mode != nlmode) 8552 wpa_driver_nl80211_set_mode(drv->first_bss, old_mode); 8553 nl80211_remove_monitor_interface(drv); 8554 return -1; 8555 } 8556 8557 return 0; 8558} 8559 8560 8561static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv) 8562{ 8563 struct nl_msg *msg; 8564 int ret = -1; 8565 8566 msg = nlmsg_alloc(); 8567 if (!msg) 8568 return -1; 8569 8570 nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS); 8571 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8572 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8573 msg = NULL; 8574 if (ret) { 8575 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d " 8576 "(%s)", ret, strerror(-ret)); 8577 goto nla_put_failure; 8578 } 8579 8580 ret = 0; 8581 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully"); 8582 8583nla_put_failure: 8584 if (wpa_driver_nl80211_set_mode(drv->first_bss, 8585 NL80211_IFTYPE_STATION)) { 8586 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 8587 "station mode"); 8588 } 8589 8590 nlmsg_free(msg); 8591 return ret; 8592} 8593 8594 8595static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv, 8596 struct wpa_driver_associate_params *params) 8597{ 8598 struct nl_msg *msg; 8599 int ret = -1; 8600 int count = 0; 8601 8602 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex); 8603 8604 if (wpa_driver_nl80211_set_mode_ibss(drv->first_bss, params->freq)) { 8605 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 8606 "IBSS mode"); 8607 return -1; 8608 } 8609 8610retry: 8611 msg = nlmsg_alloc(); 8612 if (!msg) 8613 return -1; 8614 8615 nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS); 8616 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8617 8618 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid)) 8619 goto nla_put_failure; 8620 8621 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 8622 params->ssid, params->ssid_len); 8623 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 8624 params->ssid); 8625 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 8626 drv->ssid_len = params->ssid_len; 8627 8628 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 8629 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 8630 8631 if (params->beacon_int > 0) { 8632 wpa_printf(MSG_DEBUG, " * beacon_int=%d", params->beacon_int); 8633 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, 8634 params->beacon_int); 8635 } 8636 8637 ret = nl80211_set_conn_keys(params, msg); 8638 if (ret) 8639 goto nla_put_failure; 8640 8641 if (params->bssid && params->fixed_bssid) { 8642 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR, 8643 MAC2STR(params->bssid)); 8644 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 8645 } 8646 8647 if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X || 8648 params->key_mgmt_suite == WPA_KEY_MGMT_PSK || 8649 params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 || 8650 params->key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256) { 8651 wpa_printf(MSG_DEBUG, " * control port"); 8652 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 8653 } 8654 8655 if (params->wpa_ie) { 8656 wpa_hexdump(MSG_DEBUG, 8657 " * Extra IEs for Beacon/Probe Response frames", 8658 params->wpa_ie, params->wpa_ie_len); 8659 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 8660 params->wpa_ie); 8661 } 8662 8663 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8664 msg = NULL; 8665 if (ret) { 8666 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)", 8667 ret, strerror(-ret)); 8668 count++; 8669 if (ret == -EALREADY && count == 1) { 8670 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after " 8671 "forced leave"); 8672 nl80211_leave_ibss(drv); 8673 nlmsg_free(msg); 8674 goto retry; 8675 } 8676 8677 goto nla_put_failure; 8678 } 8679 ret = 0; 8680 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully"); 8681 8682nla_put_failure: 8683 nlmsg_free(msg); 8684 return ret; 8685} 8686 8687 8688static int nl80211_connect_common(struct wpa_driver_nl80211_data *drv, 8689 struct wpa_driver_associate_params *params, 8690 struct nl_msg *msg) 8691{ 8692 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8693 8694 if (params->bssid) { 8695 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 8696 MAC2STR(params->bssid)); 8697 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 8698 } 8699 8700 if (params->bssid_hint) { 8701 wpa_printf(MSG_DEBUG, " * bssid_hint=" MACSTR, 8702 MAC2STR(params->bssid_hint)); 8703 NLA_PUT(msg, NL80211_ATTR_MAC_HINT, ETH_ALEN, 8704 params->bssid_hint); 8705 } 8706 8707 if (params->freq) { 8708 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 8709 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 8710 drv->assoc_freq = params->freq; 8711 } else 8712 drv->assoc_freq = 0; 8713 8714 if (params->freq_hint) { 8715 wpa_printf(MSG_DEBUG, " * freq_hint=%d", params->freq_hint); 8716 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ_HINT, 8717 params->freq_hint); 8718 } 8719 8720 if (params->bg_scan_period >= 0) { 8721 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 8722 params->bg_scan_period); 8723 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 8724 params->bg_scan_period); 8725 } 8726 8727 if (params->ssid) { 8728 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 8729 params->ssid, params->ssid_len); 8730 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 8731 params->ssid); 8732 if (params->ssid_len > sizeof(drv->ssid)) 8733 goto nla_put_failure; 8734 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 8735 drv->ssid_len = params->ssid_len; 8736 } 8737 8738 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 8739 if (params->wpa_ie) 8740 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 8741 params->wpa_ie); 8742 8743 if (params->wpa_proto) { 8744 enum nl80211_wpa_versions ver = 0; 8745 8746 if (params->wpa_proto & WPA_PROTO_WPA) 8747 ver |= NL80211_WPA_VERSION_1; 8748 if (params->wpa_proto & WPA_PROTO_RSN) 8749 ver |= NL80211_WPA_VERSION_2; 8750 8751 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver); 8752 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 8753 } 8754 8755 if (params->pairwise_suite != WPA_CIPHER_NONE) { 8756 u32 cipher = wpa_cipher_to_cipher_suite(params->pairwise_suite); 8757 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher); 8758 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); 8759 } 8760 8761 if (params->group_suite == WPA_CIPHER_GTK_NOT_USED && 8762 !(drv->capa.enc & WPA_DRIVER_CAPA_ENC_GTK_NOT_USED)) { 8763 /* 8764 * This is likely to work even though many drivers do not 8765 * advertise support for operations without GTK. 8766 */ 8767 wpa_printf(MSG_DEBUG, " * skip group cipher configuration for GTK_NOT_USED due to missing driver support advertisement"); 8768 } else if (params->group_suite != WPA_CIPHER_NONE) { 8769 u32 cipher = wpa_cipher_to_cipher_suite(params->group_suite); 8770 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher); 8771 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); 8772 } 8773 8774 if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X || 8775 params->key_mgmt_suite == WPA_KEY_MGMT_PSK || 8776 params->key_mgmt_suite == WPA_KEY_MGMT_FT_IEEE8021X || 8777 params->key_mgmt_suite == WPA_KEY_MGMT_FT_PSK || 8778 params->key_mgmt_suite == WPA_KEY_MGMT_CCKM || 8779 params->key_mgmt_suite == WPA_KEY_MGMT_OSEN || 8780 params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 || 8781 params->key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256) { 8782 int mgmt = WLAN_AKM_SUITE_PSK; 8783 8784 switch (params->key_mgmt_suite) { 8785 case WPA_KEY_MGMT_CCKM: 8786 mgmt = WLAN_AKM_SUITE_CCKM; 8787 break; 8788 case WPA_KEY_MGMT_IEEE8021X: 8789 mgmt = WLAN_AKM_SUITE_8021X; 8790 break; 8791 case WPA_KEY_MGMT_FT_IEEE8021X: 8792 mgmt = WLAN_AKM_SUITE_FT_8021X; 8793 break; 8794 case WPA_KEY_MGMT_FT_PSK: 8795 mgmt = WLAN_AKM_SUITE_FT_PSK; 8796 break; 8797 case WPA_KEY_MGMT_IEEE8021X_SHA256: 8798 mgmt = WLAN_AKM_SUITE_8021X_SHA256; 8799 break; 8800 case WPA_KEY_MGMT_PSK_SHA256: 8801 mgmt = WLAN_AKM_SUITE_PSK_SHA256; 8802 break; 8803 case WPA_KEY_MGMT_OSEN: 8804 mgmt = WLAN_AKM_SUITE_OSEN; 8805 break; 8806 case WPA_KEY_MGMT_PSK: 8807 default: 8808 mgmt = WLAN_AKM_SUITE_PSK; 8809 break; 8810 } 8811 wpa_printf(MSG_DEBUG, " * akm=0x%x", mgmt); 8812 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt); 8813 } 8814 8815 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 8816 8817 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) 8818 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); 8819 8820 if (params->disable_ht) 8821 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); 8822 8823 if (params->htcaps && params->htcaps_mask) { 8824 int sz = sizeof(struct ieee80211_ht_capabilities); 8825 wpa_hexdump(MSG_DEBUG, " * htcaps", params->htcaps, sz); 8826 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); 8827 wpa_hexdump(MSG_DEBUG, " * htcaps_mask", 8828 params->htcaps_mask, sz); 8829 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 8830 params->htcaps_mask); 8831 } 8832 8833#ifdef CONFIG_VHT_OVERRIDES 8834 if (params->disable_vht) { 8835 wpa_printf(MSG_DEBUG, " * VHT disabled"); 8836 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT); 8837 } 8838 8839 if (params->vhtcaps && params->vhtcaps_mask) { 8840 int sz = sizeof(struct ieee80211_vht_capabilities); 8841 wpa_hexdump(MSG_DEBUG, " * vhtcaps", params->vhtcaps, sz); 8842 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps); 8843 wpa_hexdump(MSG_DEBUG, " * vhtcaps_mask", 8844 params->vhtcaps_mask, sz); 8845 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 8846 params->vhtcaps_mask); 8847 } 8848#endif /* CONFIG_VHT_OVERRIDES */ 8849 8850 if (params->p2p) 8851 wpa_printf(MSG_DEBUG, " * P2P group"); 8852 8853 return 0; 8854nla_put_failure: 8855 return -1; 8856} 8857 8858 8859static int wpa_driver_nl80211_try_connect( 8860 struct wpa_driver_nl80211_data *drv, 8861 struct wpa_driver_associate_params *params) 8862{ 8863 struct nl_msg *msg; 8864 enum nl80211_auth_type type; 8865 int ret; 8866 int algs; 8867 8868 msg = nlmsg_alloc(); 8869 if (!msg) 8870 return -1; 8871 8872 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex); 8873 nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT); 8874 8875 ret = nl80211_connect_common(drv, params, msg); 8876 if (ret) 8877 goto nla_put_failure; 8878 8879 algs = 0; 8880 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 8881 algs++; 8882 if (params->auth_alg & WPA_AUTH_ALG_SHARED) 8883 algs++; 8884 if (params->auth_alg & WPA_AUTH_ALG_LEAP) 8885 algs++; 8886 if (algs > 1) { 8887 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic " 8888 "selection"); 8889 goto skip_auth_type; 8890 } 8891 8892 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 8893 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 8894 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 8895 type = NL80211_AUTHTYPE_SHARED_KEY; 8896 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 8897 type = NL80211_AUTHTYPE_NETWORK_EAP; 8898 else if (params->auth_alg & WPA_AUTH_ALG_FT) 8899 type = NL80211_AUTHTYPE_FT; 8900 else 8901 goto nla_put_failure; 8902 8903 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 8904 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 8905 8906skip_auth_type: 8907 ret = nl80211_set_conn_keys(params, msg); 8908 if (ret) 8909 goto nla_put_failure; 8910 8911 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8912 msg = NULL; 8913 if (ret) { 8914 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d " 8915 "(%s)", ret, strerror(-ret)); 8916 goto nla_put_failure; 8917 } 8918 ret = 0; 8919 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully"); 8920 8921nla_put_failure: 8922 nlmsg_free(msg); 8923 return ret; 8924 8925} 8926 8927 8928static int wpa_driver_nl80211_connect( 8929 struct wpa_driver_nl80211_data *drv, 8930 struct wpa_driver_associate_params *params) 8931{ 8932 int ret = wpa_driver_nl80211_try_connect(drv, params); 8933 if (ret == -EALREADY) { 8934 /* 8935 * cfg80211 does not currently accept new connections if 8936 * we are already connected. As a workaround, force 8937 * disconnection and try again. 8938 */ 8939 wpa_printf(MSG_DEBUG, "nl80211: Explicitly " 8940 "disconnecting before reassociation " 8941 "attempt"); 8942 if (wpa_driver_nl80211_disconnect( 8943 drv, WLAN_REASON_PREV_AUTH_NOT_VALID)) 8944 return -1; 8945 ret = wpa_driver_nl80211_try_connect(drv, params); 8946 } 8947 return ret; 8948} 8949 8950 8951static int wpa_driver_nl80211_associate( 8952 void *priv, struct wpa_driver_associate_params *params) 8953{ 8954 struct i802_bss *bss = priv; 8955 struct wpa_driver_nl80211_data *drv = bss->drv; 8956 int ret; 8957 struct nl_msg *msg; 8958 8959 if (params->mode == IEEE80211_MODE_AP) 8960 return wpa_driver_nl80211_ap(drv, params); 8961 8962 if (params->mode == IEEE80211_MODE_IBSS) 8963 return wpa_driver_nl80211_ibss(drv, params); 8964 8965 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) { 8966 enum nl80211_iftype nlmode = params->p2p ? 8967 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 8968 8969 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0) 8970 return -1; 8971 return wpa_driver_nl80211_connect(drv, params); 8972 } 8973 8974 nl80211_mark_disconnected(drv); 8975 8976 msg = nlmsg_alloc(); 8977 if (!msg) 8978 return -1; 8979 8980 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)", 8981 drv->ifindex); 8982 nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE); 8983 8984 ret = nl80211_connect_common(drv, params, msg); 8985 if (ret) 8986 goto nla_put_failure; 8987 8988 if (params->prev_bssid) { 8989 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR, 8990 MAC2STR(params->prev_bssid)); 8991 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN, 8992 params->prev_bssid); 8993 } 8994 8995 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8996 msg = NULL; 8997 if (ret) { 8998 wpa_dbg(drv->ctx, MSG_DEBUG, 8999 "nl80211: MLME command failed (assoc): ret=%d (%s)", 9000 ret, strerror(-ret)); 9001 nl80211_dump_scan(drv); 9002 goto nla_put_failure; 9003 } 9004 ret = 0; 9005 wpa_printf(MSG_DEBUG, "nl80211: Association request send " 9006 "successfully"); 9007 9008nla_put_failure: 9009 nlmsg_free(msg); 9010 return ret; 9011} 9012 9013 9014static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv, 9015 int ifindex, enum nl80211_iftype mode) 9016{ 9017 struct nl_msg *msg; 9018 int ret = -ENOBUFS; 9019 9020 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)", 9021 ifindex, mode, nl80211_iftype_str(mode)); 9022 9023 msg = nlmsg_alloc(); 9024 if (!msg) 9025 return -ENOMEM; 9026 9027 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE); 9028 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 9029 goto nla_put_failure; 9030 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode); 9031 9032 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9033 msg = NULL; 9034 if (!ret) 9035 return 0; 9036nla_put_failure: 9037 nlmsg_free(msg); 9038 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:" 9039 " %d (%s)", ifindex, mode, ret, strerror(-ret)); 9040 return ret; 9041} 9042 9043 9044static int wpa_driver_nl80211_set_mode_impl( 9045 struct i802_bss *bss, 9046 enum nl80211_iftype nlmode, 9047 struct hostapd_freq_params *desired_freq_params) 9048{ 9049 struct wpa_driver_nl80211_data *drv = bss->drv; 9050 int ret = -1; 9051 int i; 9052 int was_ap = is_ap_interface(drv->nlmode); 9053 int res; 9054 int mode_switch_res; 9055 9056 mode_switch_res = nl80211_set_mode(drv, drv->ifindex, nlmode); 9057 if (mode_switch_res && nlmode == nl80211_get_ifmode(bss)) 9058 mode_switch_res = 0; 9059 9060 if (mode_switch_res == 0) { 9061 drv->nlmode = nlmode; 9062 ret = 0; 9063 goto done; 9064 } 9065 9066 if (mode_switch_res == -ENODEV) 9067 return -1; 9068 9069 if (nlmode == drv->nlmode) { 9070 wpa_printf(MSG_DEBUG, "nl80211: Interface already in " 9071 "requested mode - ignore error"); 9072 ret = 0; 9073 goto done; /* Already in the requested mode */ 9074 } 9075 9076 /* mac80211 doesn't allow mode changes while the device is up, so 9077 * take the device down, try to set the mode again, and bring the 9078 * device back up. 9079 */ 9080 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting " 9081 "interface down"); 9082 for (i = 0; i < 10; i++) { 9083 res = i802_set_iface_flags(bss, 0); 9084 if (res == -EACCES || res == -ENODEV) 9085 break; 9086 if (res != 0) { 9087 wpa_printf(MSG_DEBUG, "nl80211: Failed to set " 9088 "interface down"); 9089 os_sleep(0, 100000); 9090 continue; 9091 } 9092 9093 /* 9094 * Setting the mode will fail for some drivers if the phy is 9095 * on a frequency that the mode is disallowed in. 9096 */ 9097 if (desired_freq_params) { 9098 res = i802_set_freq(bss, desired_freq_params); 9099 if (res) { 9100 wpa_printf(MSG_DEBUG, 9101 "nl80211: Failed to set frequency on interface"); 9102 } 9103 } 9104 9105 /* Try to set the mode again while the interface is down */ 9106 mode_switch_res = nl80211_set_mode(drv, drv->ifindex, nlmode); 9107 if (mode_switch_res == -EBUSY) { 9108 wpa_printf(MSG_DEBUG, 9109 "nl80211: Delaying mode set while interface going down"); 9110 os_sleep(0, 100000); 9111 continue; 9112 } 9113 ret = mode_switch_res; 9114 break; 9115 } 9116 9117 if (!ret) { 9118 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while " 9119 "interface is down"); 9120 drv->nlmode = nlmode; 9121 drv->ignore_if_down_event = 1; 9122 } 9123 9124 /* Bring the interface back up */ 9125 res = linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1); 9126 if (res != 0) { 9127 wpa_printf(MSG_DEBUG, 9128 "nl80211: Failed to set interface up after switching mode"); 9129 ret = -1; 9130 } 9131 9132done: 9133 if (ret) { 9134 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d " 9135 "from %d failed", nlmode, drv->nlmode); 9136 return ret; 9137 } 9138 9139 if (is_p2p_net_interface(nlmode)) 9140 nl80211_disable_11b_rates(drv, drv->ifindex, 1); 9141 else if (drv->disabled_11b_rates) 9142 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 9143 9144 if (is_ap_interface(nlmode)) { 9145 nl80211_mgmt_unsubscribe(bss, "start AP"); 9146 /* Setup additional AP mode functionality if needed */ 9147 if (nl80211_setup_ap(bss)) 9148 return -1; 9149 } else if (was_ap) { 9150 /* Remove additional AP mode functionality */ 9151 nl80211_teardown_ap(bss); 9152 } else { 9153 nl80211_mgmt_unsubscribe(bss, "mode change"); 9154 } 9155 9156 if (!bss->in_deinit && !is_ap_interface(nlmode) && 9157 nl80211_mgmt_subscribe_non_ap(bss) < 0) 9158 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action " 9159 "frame processing - ignore for now"); 9160 9161 return 0; 9162} 9163 9164 9165static int dfs_info_handler(struct nl_msg *msg, void *arg) 9166{ 9167 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9168 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9169 int *dfs_capability_ptr = arg; 9170 9171 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9172 genlmsg_attrlen(gnlh, 0), NULL); 9173 9174 if (tb[NL80211_ATTR_VENDOR_DATA]) { 9175 struct nlattr *nl_vend = tb[NL80211_ATTR_VENDOR_DATA]; 9176 struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_MAX + 1]; 9177 9178 nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_MAX, 9179 nla_data(nl_vend), nla_len(nl_vend), NULL); 9180 9181 if (tb_vendor[QCA_WLAN_VENDOR_ATTR_DFS]) { 9182 u32 val; 9183 val = nla_get_u32(tb_vendor[QCA_WLAN_VENDOR_ATTR_DFS]); 9184 wpa_printf(MSG_DEBUG, "nl80211: DFS offload capability: %u", 9185 val); 9186 *dfs_capability_ptr = val; 9187 } 9188 } 9189 9190 return NL_SKIP; 9191} 9192 9193 9194static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 9195 enum nl80211_iftype nlmode) 9196{ 9197 return wpa_driver_nl80211_set_mode_impl(bss, nlmode, NULL); 9198} 9199 9200 9201static int wpa_driver_nl80211_set_mode_ibss(struct i802_bss *bss, int freq) 9202{ 9203 struct hostapd_freq_params freq_params; 9204 os_memset(&freq_params, 0, sizeof(freq_params)); 9205 freq_params.freq = freq; 9206 return wpa_driver_nl80211_set_mode_impl(bss, NL80211_IFTYPE_ADHOC, 9207 &freq_params); 9208} 9209 9210 9211static int wpa_driver_nl80211_get_capa(void *priv, 9212 struct wpa_driver_capa *capa) 9213{ 9214 struct i802_bss *bss = priv; 9215 struct wpa_driver_nl80211_data *drv = bss->drv; 9216 struct nl_msg *msg; 9217 int dfs_capability = 0; 9218 int ret = 0; 9219 9220 if (!drv->has_capability) 9221 return -1; 9222 os_memcpy(capa, &drv->capa, sizeof(*capa)); 9223 if (drv->extended_capa && drv->extended_capa_mask) { 9224 capa->extended_capa = drv->extended_capa; 9225 capa->extended_capa_mask = drv->extended_capa_mask; 9226 capa->extended_capa_len = drv->extended_capa_len; 9227 } 9228 9229 if ((capa->flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) && 9230 !drv->allow_p2p_device) { 9231 wpa_printf(MSG_DEBUG, "nl80211: Do not indicate P2P_DEVICE support (p2p_device=1 driver param not specified)"); 9232 capa->flags &= ~WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 9233 } 9234 9235 if (drv->dfs_vendor_cmd_avail == 1) { 9236 msg = nlmsg_alloc(); 9237 if (!msg) 9238 return -ENOMEM; 9239 9240 nl80211_cmd(drv, msg, 0, NL80211_CMD_VENDOR); 9241 9242 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9243 NLA_PUT_U32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA); 9244 NLA_PUT_U32(msg, NL80211_ATTR_VENDOR_SUBCMD, 9245 QCA_NL80211_VENDOR_SUBCMD_DFS_CAPABILITY); 9246 9247 ret = send_and_recv_msgs(drv, msg, dfs_info_handler, 9248 &dfs_capability); 9249 if (!ret) { 9250 if (dfs_capability) 9251 capa->flags |= WPA_DRIVER_FLAGS_DFS_OFFLOAD; 9252 } 9253 } 9254 9255 return ret; 9256 9257 nla_put_failure: 9258 nlmsg_free(msg); 9259 return -ENOBUFS; 9260} 9261 9262 9263static int wpa_driver_nl80211_set_operstate(void *priv, int state) 9264{ 9265 struct i802_bss *bss = priv; 9266 struct wpa_driver_nl80211_data *drv = bss->drv; 9267 9268 wpa_printf(MSG_DEBUG, "nl80211: Set %s operstate %d->%d (%s)", 9269 bss->ifname, drv->operstate, state, 9270 state ? "UP" : "DORMANT"); 9271 drv->operstate = state; 9272 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1, 9273 state ? IF_OPER_UP : IF_OPER_DORMANT); 9274} 9275 9276 9277static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized) 9278{ 9279 struct i802_bss *bss = priv; 9280 struct wpa_driver_nl80211_data *drv = bss->drv; 9281 struct nl_msg *msg; 9282 struct nl80211_sta_flag_update upd; 9283 int ret = -ENOBUFS; 9284 9285 if (!drv->associated && is_zero_ether_addr(drv->bssid) && !authorized) { 9286 wpa_printf(MSG_DEBUG, "nl80211: Skip set_supp_port(unauthorized) while not associated"); 9287 return 0; 9288 } 9289 9290 wpa_printf(MSG_DEBUG, "nl80211: Set supplicant port %sauthorized for " 9291 MACSTR, authorized ? "" : "un", MAC2STR(drv->bssid)); 9292 9293 msg = nlmsg_alloc(); 9294 if (!msg) 9295 return -ENOMEM; 9296 9297 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 9298 9299 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 9300 if_nametoindex(bss->ifname)); 9301 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 9302 9303 os_memset(&upd, 0, sizeof(upd)); 9304 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED); 9305 if (authorized) 9306 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED); 9307 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 9308 9309 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9310 msg = NULL; 9311 if (!ret) 9312 return 0; 9313 nla_put_failure: 9314 nlmsg_free(msg); 9315 wpa_printf(MSG_DEBUG, "nl80211: Failed to set STA flag: %d (%s)", 9316 ret, strerror(-ret)); 9317 return ret; 9318} 9319 9320 9321/* Set kernel driver on given frequency (MHz) */ 9322static int i802_set_freq(void *priv, struct hostapd_freq_params *freq) 9323{ 9324 struct i802_bss *bss = priv; 9325 return nl80211_set_channel(bss, freq, 0); 9326} 9327 9328 9329static inline int min_int(int a, int b) 9330{ 9331 if (a < b) 9332 return a; 9333 return b; 9334} 9335 9336 9337static int get_key_handler(struct nl_msg *msg, void *arg) 9338{ 9339 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9340 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9341 9342 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9343 genlmsg_attrlen(gnlh, 0), NULL); 9344 9345 /* 9346 * TODO: validate the key index and mac address! 9347 * Otherwise, there's a race condition as soon as 9348 * the kernel starts sending key notifications. 9349 */ 9350 9351 if (tb[NL80211_ATTR_KEY_SEQ]) 9352 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]), 9353 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6)); 9354 return NL_SKIP; 9355} 9356 9357 9358static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr, 9359 int idx, u8 *seq) 9360{ 9361 struct i802_bss *bss = priv; 9362 struct wpa_driver_nl80211_data *drv = bss->drv; 9363 struct nl_msg *msg; 9364 9365 msg = nlmsg_alloc(); 9366 if (!msg) 9367 return -ENOMEM; 9368 9369 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY); 9370 9371 if (addr) 9372 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 9373 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx); 9374 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface)); 9375 9376 memset(seq, 0, 6); 9377 9378 return send_and_recv_msgs(drv, msg, get_key_handler, seq); 9379 nla_put_failure: 9380 nlmsg_free(msg); 9381 return -ENOBUFS; 9382} 9383 9384 9385static int i802_set_rts(void *priv, int rts) 9386{ 9387 struct i802_bss *bss = priv; 9388 struct wpa_driver_nl80211_data *drv = bss->drv; 9389 struct nl_msg *msg; 9390 int ret = -ENOBUFS; 9391 u32 val; 9392 9393 msg = nlmsg_alloc(); 9394 if (!msg) 9395 return -ENOMEM; 9396 9397 if (rts >= 2347) 9398 val = (u32) -1; 9399 else 9400 val = rts; 9401 9402 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 9403 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9404 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val); 9405 9406 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9407 msg = NULL; 9408 if (!ret) 9409 return 0; 9410nla_put_failure: 9411 nlmsg_free(msg); 9412 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: " 9413 "%d (%s)", rts, ret, strerror(-ret)); 9414 return ret; 9415} 9416 9417 9418static int i802_set_frag(void *priv, int frag) 9419{ 9420 struct i802_bss *bss = priv; 9421 struct wpa_driver_nl80211_data *drv = bss->drv; 9422 struct nl_msg *msg; 9423 int ret = -ENOBUFS; 9424 u32 val; 9425 9426 msg = nlmsg_alloc(); 9427 if (!msg) 9428 return -ENOMEM; 9429 9430 if (frag >= 2346) 9431 val = (u32) -1; 9432 else 9433 val = frag; 9434 9435 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 9436 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9437 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val); 9438 9439 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9440 msg = NULL; 9441 if (!ret) 9442 return 0; 9443nla_put_failure: 9444 nlmsg_free(msg); 9445 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold " 9446 "%d: %d (%s)", frag, ret, strerror(-ret)); 9447 return ret; 9448} 9449 9450 9451static int i802_flush(void *priv) 9452{ 9453 struct i802_bss *bss = priv; 9454 struct wpa_driver_nl80211_data *drv = bss->drv; 9455 struct nl_msg *msg; 9456 int res; 9457 9458 msg = nlmsg_alloc(); 9459 if (!msg) 9460 return -1; 9461 9462 wpa_printf(MSG_DEBUG, "nl80211: flush -> DEL_STATION %s (all)", 9463 bss->ifname); 9464 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 9465 9466 /* 9467 * XXX: FIX! this needs to flush all VLANs too 9468 */ 9469 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 9470 if_nametoindex(bss->ifname)); 9471 9472 res = send_and_recv_msgs(drv, msg, NULL, NULL); 9473 if (res) { 9474 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d " 9475 "(%s)", res, strerror(-res)); 9476 } 9477 return res; 9478 nla_put_failure: 9479 nlmsg_free(msg); 9480 return -ENOBUFS; 9481} 9482 9483 9484static int get_sta_handler(struct nl_msg *msg, void *arg) 9485{ 9486 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9487 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9488 struct hostap_sta_driver_data *data = arg; 9489 struct nlattr *stats[NL80211_STA_INFO_MAX + 1]; 9490 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = { 9491 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 }, 9492 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 }, 9493 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 }, 9494 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 }, 9495 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 }, 9496 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 }, 9497 }; 9498 9499 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9500 genlmsg_attrlen(gnlh, 0), NULL); 9501 9502 /* 9503 * TODO: validate the interface and mac address! 9504 * Otherwise, there's a race condition as soon as 9505 * the kernel starts sending station notifications. 9506 */ 9507 9508 if (!tb[NL80211_ATTR_STA_INFO]) { 9509 wpa_printf(MSG_DEBUG, "sta stats missing!"); 9510 return NL_SKIP; 9511 } 9512 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX, 9513 tb[NL80211_ATTR_STA_INFO], 9514 stats_policy)) { 9515 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!"); 9516 return NL_SKIP; 9517 } 9518 9519 if (stats[NL80211_STA_INFO_INACTIVE_TIME]) 9520 data->inactive_msec = 9521 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]); 9522 if (stats[NL80211_STA_INFO_RX_BYTES]) 9523 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]); 9524 if (stats[NL80211_STA_INFO_TX_BYTES]) 9525 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]); 9526 if (stats[NL80211_STA_INFO_RX_PACKETS]) 9527 data->rx_packets = 9528 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]); 9529 if (stats[NL80211_STA_INFO_TX_PACKETS]) 9530 data->tx_packets = 9531 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]); 9532 if (stats[NL80211_STA_INFO_TX_FAILED]) 9533 data->tx_retry_failed = 9534 nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]); 9535 9536 return NL_SKIP; 9537} 9538 9539static int i802_read_sta_data(struct i802_bss *bss, 9540 struct hostap_sta_driver_data *data, 9541 const u8 *addr) 9542{ 9543 struct wpa_driver_nl80211_data *drv = bss->drv; 9544 struct nl_msg *msg; 9545 9546 os_memset(data, 0, sizeof(*data)); 9547 msg = nlmsg_alloc(); 9548 if (!msg) 9549 return -ENOMEM; 9550 9551 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 9552 9553 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 9554 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 9555 9556 return send_and_recv_msgs(drv, msg, get_sta_handler, data); 9557 nla_put_failure: 9558 nlmsg_free(msg); 9559 return -ENOBUFS; 9560} 9561 9562 9563static int i802_set_tx_queue_params(void *priv, int queue, int aifs, 9564 int cw_min, int cw_max, int burst_time) 9565{ 9566 struct i802_bss *bss = priv; 9567 struct wpa_driver_nl80211_data *drv = bss->drv; 9568 struct nl_msg *msg; 9569 struct nlattr *txq, *params; 9570 9571 msg = nlmsg_alloc(); 9572 if (!msg) 9573 return -1; 9574 9575 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 9576 9577 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 9578 9579 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS); 9580 if (!txq) 9581 goto nla_put_failure; 9582 9583 /* We are only sending parameters for a single TXQ at a time */ 9584 params = nla_nest_start(msg, 1); 9585 if (!params) 9586 goto nla_put_failure; 9587 9588 switch (queue) { 9589 case 0: 9590 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO); 9591 break; 9592 case 1: 9593 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI); 9594 break; 9595 case 2: 9596 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE); 9597 break; 9598 case 3: 9599 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK); 9600 break; 9601 } 9602 /* Burst time is configured in units of 0.1 msec and TXOP parameter in 9603 * 32 usec, so need to convert the value here. */ 9604 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32); 9605 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min); 9606 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max); 9607 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs); 9608 9609 nla_nest_end(msg, params); 9610 9611 nla_nest_end(msg, txq); 9612 9613 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 9614 return 0; 9615 msg = NULL; 9616 nla_put_failure: 9617 nlmsg_free(msg); 9618 return -1; 9619} 9620 9621 9622static int i802_set_sta_vlan(struct i802_bss *bss, const u8 *addr, 9623 const char *ifname, int vlan_id) 9624{ 9625 struct wpa_driver_nl80211_data *drv = bss->drv; 9626 struct nl_msg *msg; 9627 int ret = -ENOBUFS; 9628 9629 msg = nlmsg_alloc(); 9630 if (!msg) 9631 return -ENOMEM; 9632 9633 wpa_printf(MSG_DEBUG, "nl80211: %s[%d]: set_sta_vlan(" MACSTR 9634 ", ifname=%s[%d], vlan_id=%d)", 9635 bss->ifname, if_nametoindex(bss->ifname), 9636 MAC2STR(addr), ifname, if_nametoindex(ifname), vlan_id); 9637 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 9638 9639 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 9640 if_nametoindex(bss->ifname)); 9641 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 9642 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN, 9643 if_nametoindex(ifname)); 9644 9645 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9646 msg = NULL; 9647 if (ret < 0) { 9648 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr=" 9649 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)", 9650 MAC2STR(addr), ifname, vlan_id, ret, 9651 strerror(-ret)); 9652 } 9653 nla_put_failure: 9654 nlmsg_free(msg); 9655 return ret; 9656} 9657 9658 9659static int i802_get_inact_sec(void *priv, const u8 *addr) 9660{ 9661 struct hostap_sta_driver_data data; 9662 int ret; 9663 9664 data.inactive_msec = (unsigned long) -1; 9665 ret = i802_read_sta_data(priv, &data, addr); 9666 if (ret || data.inactive_msec == (unsigned long) -1) 9667 return -1; 9668 return data.inactive_msec / 1000; 9669} 9670 9671 9672static int i802_sta_clear_stats(void *priv, const u8 *addr) 9673{ 9674#if 0 9675 /* TODO */ 9676#endif 9677 return 0; 9678} 9679 9680 9681static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, 9682 int reason) 9683{ 9684 struct i802_bss *bss = priv; 9685 struct wpa_driver_nl80211_data *drv = bss->drv; 9686 struct ieee80211_mgmt mgmt; 9687 9688 if (drv->device_ap_sme) 9689 return wpa_driver_nl80211_sta_remove(bss, addr); 9690 9691 memset(&mgmt, 0, sizeof(mgmt)); 9692 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 9693 WLAN_FC_STYPE_DEAUTH); 9694 memcpy(mgmt.da, addr, ETH_ALEN); 9695 memcpy(mgmt.sa, own_addr, ETH_ALEN); 9696 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 9697 mgmt.u.deauth.reason_code = host_to_le16(reason); 9698 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 9699 IEEE80211_HDRLEN + 9700 sizeof(mgmt.u.deauth), 0, 0, 0, 0, 9701 0); 9702} 9703 9704 9705static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr, 9706 int reason) 9707{ 9708 struct i802_bss *bss = priv; 9709 struct wpa_driver_nl80211_data *drv = bss->drv; 9710 struct ieee80211_mgmt mgmt; 9711 9712 if (drv->device_ap_sme) 9713 return wpa_driver_nl80211_sta_remove(bss, addr); 9714 9715 memset(&mgmt, 0, sizeof(mgmt)); 9716 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 9717 WLAN_FC_STYPE_DISASSOC); 9718 memcpy(mgmt.da, addr, ETH_ALEN); 9719 memcpy(mgmt.sa, own_addr, ETH_ALEN); 9720 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 9721 mgmt.u.disassoc.reason_code = host_to_le16(reason); 9722 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 9723 IEEE80211_HDRLEN + 9724 sizeof(mgmt.u.disassoc), 0, 0, 0, 0, 9725 0); 9726} 9727 9728 9729static void dump_ifidx(struct wpa_driver_nl80211_data *drv) 9730{ 9731 char buf[200], *pos, *end; 9732 int i, res; 9733 9734 pos = buf; 9735 end = pos + sizeof(buf); 9736 9737 for (i = 0; i < drv->num_if_indices; i++) { 9738 if (!drv->if_indices[i]) 9739 continue; 9740 res = os_snprintf(pos, end - pos, " %d", drv->if_indices[i]); 9741 if (res < 0 || res >= end - pos) 9742 break; 9743 pos += res; 9744 } 9745 *pos = '\0'; 9746 9747 wpa_printf(MSG_DEBUG, "nl80211: if_indices[%d]:%s", 9748 drv->num_if_indices, buf); 9749} 9750 9751 9752static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 9753{ 9754 int i; 9755 int *old; 9756 9757 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d", 9758 ifidx); 9759 if (have_ifidx(drv, ifidx)) { 9760 wpa_printf(MSG_DEBUG, "nl80211: ifindex %d already in the list", 9761 ifidx); 9762 return; 9763 } 9764 for (i = 0; i < drv->num_if_indices; i++) { 9765 if (drv->if_indices[i] == 0) { 9766 drv->if_indices[i] = ifidx; 9767 dump_ifidx(drv); 9768 return; 9769 } 9770 } 9771 9772 if (drv->if_indices != drv->default_if_indices) 9773 old = drv->if_indices; 9774 else 9775 old = NULL; 9776 9777 drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1, 9778 sizeof(int)); 9779 if (!drv->if_indices) { 9780 if (!old) 9781 drv->if_indices = drv->default_if_indices; 9782 else 9783 drv->if_indices = old; 9784 wpa_printf(MSG_ERROR, "Failed to reallocate memory for " 9785 "interfaces"); 9786 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx); 9787 return; 9788 } else if (!old) 9789 os_memcpy(drv->if_indices, drv->default_if_indices, 9790 sizeof(drv->default_if_indices)); 9791 drv->if_indices[drv->num_if_indices] = ifidx; 9792 drv->num_if_indices++; 9793 dump_ifidx(drv); 9794} 9795 9796 9797static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 9798{ 9799 int i; 9800 9801 for (i = 0; i < drv->num_if_indices; i++) { 9802 if (drv->if_indices[i] == ifidx) { 9803 drv->if_indices[i] = 0; 9804 break; 9805 } 9806 } 9807 dump_ifidx(drv); 9808} 9809 9810 9811static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 9812{ 9813 int i; 9814 9815 for (i = 0; i < drv->num_if_indices; i++) 9816 if (drv->if_indices[i] == ifidx) 9817 return 1; 9818 9819 return 0; 9820} 9821 9822 9823static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val, 9824 const char *bridge_ifname, char *ifname_wds) 9825{ 9826 struct i802_bss *bss = priv; 9827 struct wpa_driver_nl80211_data *drv = bss->drv; 9828 char name[IFNAMSIZ + 1]; 9829 9830 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid); 9831 if (ifname_wds) 9832 os_strlcpy(ifname_wds, name, IFNAMSIZ + 1); 9833 9834 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR 9835 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name); 9836 if (val) { 9837 if (!if_nametoindex(name)) { 9838 if (nl80211_create_iface(drv, name, 9839 NL80211_IFTYPE_AP_VLAN, 9840 bss->addr, 1, NULL, NULL, 0) < 9841 0) 9842 return -1; 9843 if (bridge_ifname && 9844 linux_br_add_if(drv->global->ioctl_sock, 9845 bridge_ifname, name) < 0) 9846 return -1; 9847 } 9848 if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) { 9849 wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA " 9850 "interface %s up", name); 9851 } 9852 return i802_set_sta_vlan(priv, addr, name, 0); 9853 } else { 9854 if (bridge_ifname) 9855 linux_br_del_if(drv->global->ioctl_sock, bridge_ifname, 9856 name); 9857 9858 i802_set_sta_vlan(priv, addr, bss->ifname, 0); 9859 nl80211_remove_iface(drv, if_nametoindex(name)); 9860 return 0; 9861 } 9862} 9863 9864 9865static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx) 9866{ 9867 struct wpa_driver_nl80211_data *drv = eloop_ctx; 9868 struct sockaddr_ll lladdr; 9869 unsigned char buf[3000]; 9870 int len; 9871 socklen_t fromlen = sizeof(lladdr); 9872 9873 len = recvfrom(sock, buf, sizeof(buf), 0, 9874 (struct sockaddr *)&lladdr, &fromlen); 9875 if (len < 0) { 9876 wpa_printf(MSG_ERROR, "nl80211: EAPOL recv failed: %s", 9877 strerror(errno)); 9878 return; 9879 } 9880 9881 if (have_ifidx(drv, lladdr.sll_ifindex)) 9882 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len); 9883} 9884 9885 9886static int i802_check_bridge(struct wpa_driver_nl80211_data *drv, 9887 struct i802_bss *bss, 9888 const char *brname, const char *ifname) 9889{ 9890 int ifindex; 9891 char in_br[IFNAMSIZ]; 9892 9893 os_strlcpy(bss->brname, brname, IFNAMSIZ); 9894 ifindex = if_nametoindex(brname); 9895 if (ifindex == 0) { 9896 /* 9897 * Bridge was configured, but the bridge device does 9898 * not exist. Try to add it now. 9899 */ 9900 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) { 9901 wpa_printf(MSG_ERROR, "nl80211: Failed to add the " 9902 "bridge interface %s: %s", 9903 brname, strerror(errno)); 9904 return -1; 9905 } 9906 bss->added_bridge = 1; 9907 add_ifidx(drv, if_nametoindex(brname)); 9908 } 9909 9910 if (linux_br_get(in_br, ifname) == 0) { 9911 if (os_strcmp(in_br, brname) == 0) 9912 return 0; /* already in the bridge */ 9913 9914 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from " 9915 "bridge %s", ifname, in_br); 9916 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) < 9917 0) { 9918 wpa_printf(MSG_ERROR, "nl80211: Failed to " 9919 "remove interface %s from bridge " 9920 "%s: %s", 9921 ifname, brname, strerror(errno)); 9922 return -1; 9923 } 9924 } 9925 9926 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s", 9927 ifname, brname); 9928 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) { 9929 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s " 9930 "into bridge %s: %s", 9931 ifname, brname, strerror(errno)); 9932 return -1; 9933 } 9934 bss->added_if_into_bridge = 1; 9935 9936 return 0; 9937} 9938 9939 9940static void *i802_init(struct hostapd_data *hapd, 9941 struct wpa_init_params *params) 9942{ 9943 struct wpa_driver_nl80211_data *drv; 9944 struct i802_bss *bss; 9945 size_t i; 9946 char brname[IFNAMSIZ]; 9947 int ifindex, br_ifindex; 9948 int br_added = 0; 9949 9950 bss = wpa_driver_nl80211_drv_init(hapd, params->ifname, 9951 params->global_priv, 1, 9952 params->bssid); 9953 if (bss == NULL) 9954 return NULL; 9955 9956 drv = bss->drv; 9957 9958 if (linux_br_get(brname, params->ifname) == 0) { 9959 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s", 9960 params->ifname, brname); 9961 br_ifindex = if_nametoindex(brname); 9962 } else { 9963 brname[0] = '\0'; 9964 br_ifindex = 0; 9965 } 9966 9967 for (i = 0; i < params->num_bridge; i++) { 9968 if (params->bridge[i]) { 9969 ifindex = if_nametoindex(params->bridge[i]); 9970 if (ifindex) 9971 add_ifidx(drv, ifindex); 9972 if (ifindex == br_ifindex) 9973 br_added = 1; 9974 } 9975 } 9976 if (!br_added && br_ifindex && 9977 (params->num_bridge == 0 || !params->bridge[0])) 9978 add_ifidx(drv, br_ifindex); 9979 9980 /* start listening for EAPOL on the default AP interface */ 9981 add_ifidx(drv, drv->ifindex); 9982 9983 if (params->num_bridge && params->bridge[0] && 9984 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0) 9985 goto failed; 9986 9987 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE)); 9988 if (drv->eapol_sock < 0) { 9989 wpa_printf(MSG_ERROR, "nl80211: socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE) failed: %s", 9990 strerror(errno)); 9991 goto failed; 9992 } 9993 9994 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL)) 9995 { 9996 wpa_printf(MSG_INFO, "nl80211: Could not register read socket for eapol"); 9997 goto failed; 9998 } 9999 10000 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 10001 params->own_addr)) 10002 goto failed; 10003 10004 memcpy(bss->addr, params->own_addr, ETH_ALEN); 10005 10006 return bss; 10007 10008failed: 10009 wpa_driver_nl80211_deinit(bss); 10010 return NULL; 10011} 10012 10013 10014static void i802_deinit(void *priv) 10015{ 10016 struct i802_bss *bss = priv; 10017 wpa_driver_nl80211_deinit(bss); 10018} 10019 10020 10021static enum nl80211_iftype wpa_driver_nl80211_if_type( 10022 enum wpa_driver_if_type type) 10023{ 10024 switch (type) { 10025 case WPA_IF_STATION: 10026 return NL80211_IFTYPE_STATION; 10027 case WPA_IF_P2P_CLIENT: 10028 case WPA_IF_P2P_GROUP: 10029 return NL80211_IFTYPE_P2P_CLIENT; 10030 case WPA_IF_AP_VLAN: 10031 return NL80211_IFTYPE_AP_VLAN; 10032 case WPA_IF_AP_BSS: 10033 return NL80211_IFTYPE_AP; 10034 case WPA_IF_P2P_GO: 10035 return NL80211_IFTYPE_P2P_GO; 10036 case WPA_IF_P2P_DEVICE: 10037 return NL80211_IFTYPE_P2P_DEVICE; 10038 } 10039 return -1; 10040} 10041 10042 10043#ifdef CONFIG_P2P 10044 10045static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr) 10046{ 10047 struct wpa_driver_nl80211_data *drv; 10048 dl_list_for_each(drv, &global->interfaces, 10049 struct wpa_driver_nl80211_data, list) { 10050 if (os_memcmp(addr, drv->first_bss->addr, ETH_ALEN) == 0) 10051 return 1; 10052 } 10053 return 0; 10054} 10055 10056 10057static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv, 10058 u8 *new_addr) 10059{ 10060 unsigned int idx; 10061 10062 if (!drv->global) 10063 return -1; 10064 10065 os_memcpy(new_addr, drv->first_bss->addr, ETH_ALEN); 10066 for (idx = 0; idx < 64; idx++) { 10067 new_addr[0] = drv->first_bss->addr[0] | 0x02; 10068 new_addr[0] ^= idx << 2; 10069 if (!nl80211_addr_in_use(drv->global, new_addr)) 10070 break; 10071 } 10072 if (idx == 64) 10073 return -1; 10074 10075 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address " 10076 MACSTR, MAC2STR(new_addr)); 10077 10078 return 0; 10079} 10080 10081#endif /* CONFIG_P2P */ 10082 10083 10084struct wdev_info { 10085 u64 wdev_id; 10086 int wdev_id_set; 10087 u8 macaddr[ETH_ALEN]; 10088}; 10089 10090static int nl80211_wdev_handler(struct nl_msg *msg, void *arg) 10091{ 10092 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 10093 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 10094 struct wdev_info *wi = arg; 10095 10096 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 10097 genlmsg_attrlen(gnlh, 0), NULL); 10098 if (tb[NL80211_ATTR_WDEV]) { 10099 wi->wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 10100 wi->wdev_id_set = 1; 10101 } 10102 10103 if (tb[NL80211_ATTR_MAC]) 10104 os_memcpy(wi->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 10105 ETH_ALEN); 10106 10107 return NL_SKIP; 10108} 10109 10110 10111static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type, 10112 const char *ifname, const u8 *addr, 10113 void *bss_ctx, void **drv_priv, 10114 char *force_ifname, u8 *if_addr, 10115 const char *bridge, int use_existing) 10116{ 10117 enum nl80211_iftype nlmode; 10118 struct i802_bss *bss = priv; 10119 struct wpa_driver_nl80211_data *drv = bss->drv; 10120 int ifidx; 10121 int added = 1; 10122 10123 if (addr) 10124 os_memcpy(if_addr, addr, ETH_ALEN); 10125 nlmode = wpa_driver_nl80211_if_type(type); 10126 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { 10127 struct wdev_info p2pdev_info; 10128 10129 os_memset(&p2pdev_info, 0, sizeof(p2pdev_info)); 10130 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 10131 0, nl80211_wdev_handler, 10132 &p2pdev_info, use_existing); 10133 if (!p2pdev_info.wdev_id_set || ifidx != 0) { 10134 wpa_printf(MSG_ERROR, "nl80211: Failed to create a P2P Device interface %s", 10135 ifname); 10136 return -1; 10137 } 10138 10139 drv->global->if_add_wdevid = p2pdev_info.wdev_id; 10140 drv->global->if_add_wdevid_set = p2pdev_info.wdev_id_set; 10141 if (!is_zero_ether_addr(p2pdev_info.macaddr)) 10142 os_memcpy(if_addr, p2pdev_info.macaddr, ETH_ALEN); 10143 wpa_printf(MSG_DEBUG, "nl80211: New P2P Device interface %s (0x%llx) created", 10144 ifname, 10145 (long long unsigned int) p2pdev_info.wdev_id); 10146 } else { 10147 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 10148 0, NULL, NULL, use_existing); 10149 if (use_existing && ifidx == -ENFILE) { 10150 added = 0; 10151 ifidx = if_nametoindex(ifname); 10152 } else if (ifidx < 0) { 10153 return -1; 10154 } 10155 } 10156 10157 if (!addr) { 10158 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 10159 os_memcpy(if_addr, bss->addr, ETH_ALEN); 10160 else if (linux_get_ifhwaddr(drv->global->ioctl_sock, 10161 bss->ifname, if_addr) < 0) { 10162 if (added) 10163 nl80211_remove_iface(drv, ifidx); 10164 return -1; 10165 } 10166 } 10167 10168#ifdef CONFIG_P2P 10169 if (!addr && 10170 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP || 10171 type == WPA_IF_P2P_GO)) { 10172 /* Enforce unique P2P Interface Address */ 10173 u8 new_addr[ETH_ALEN]; 10174 10175 if (linux_get_ifhwaddr(drv->global->ioctl_sock, ifname, 10176 new_addr) < 0) { 10177 if (added) 10178 nl80211_remove_iface(drv, ifidx); 10179 return -1; 10180 } 10181 if (nl80211_addr_in_use(drv->global, new_addr)) { 10182 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address " 10183 "for P2P group interface"); 10184 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) { 10185 if (added) 10186 nl80211_remove_iface(drv, ifidx); 10187 return -1; 10188 } 10189 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 10190 new_addr) < 0) { 10191 if (added) 10192 nl80211_remove_iface(drv, ifidx); 10193 return -1; 10194 } 10195 } 10196 os_memcpy(if_addr, new_addr, ETH_ALEN); 10197 } 10198#endif /* CONFIG_P2P */ 10199 10200 if (type == WPA_IF_AP_BSS) { 10201 struct i802_bss *new_bss = os_zalloc(sizeof(*new_bss)); 10202 if (new_bss == NULL) { 10203 if (added) 10204 nl80211_remove_iface(drv, ifidx); 10205 return -1; 10206 } 10207 10208 if (bridge && 10209 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) { 10210 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new " 10211 "interface %s to a bridge %s", 10212 ifname, bridge); 10213 if (added) 10214 nl80211_remove_iface(drv, ifidx); 10215 os_free(new_bss); 10216 return -1; 10217 } 10218 10219 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1)) 10220 { 10221 if (added) 10222 nl80211_remove_iface(drv, ifidx); 10223 os_free(new_bss); 10224 return -1; 10225 } 10226 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ); 10227 os_memcpy(new_bss->addr, if_addr, ETH_ALEN); 10228 new_bss->ifindex = ifidx; 10229 new_bss->drv = drv; 10230 new_bss->next = drv->first_bss->next; 10231 new_bss->freq = drv->first_bss->freq; 10232 new_bss->ctx = bss_ctx; 10233 new_bss->added_if = added; 10234 drv->first_bss->next = new_bss; 10235 if (drv_priv) 10236 *drv_priv = new_bss; 10237 nl80211_init_bss(new_bss); 10238 10239 /* Subscribe management frames for this WPA_IF_AP_BSS */ 10240 if (nl80211_setup_ap(new_bss)) 10241 return -1; 10242 } 10243 10244 if (drv->global) 10245 drv->global->if_add_ifindex = ifidx; 10246 10247 /* 10248 * Some virtual interfaces need to process EAPOL packets and events on 10249 * the parent interface. This is used mainly with hostapd. 10250 */ 10251 if (ifidx > 0 && 10252 (drv->hostapd || 10253 nlmode == NL80211_IFTYPE_AP_VLAN || 10254 nlmode == NL80211_IFTYPE_WDS || 10255 nlmode == NL80211_IFTYPE_MONITOR)) 10256 add_ifidx(drv, ifidx); 10257 10258 return 0; 10259} 10260 10261 10262static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 10263 enum wpa_driver_if_type type, 10264 const char *ifname) 10265{ 10266 struct wpa_driver_nl80211_data *drv = bss->drv; 10267 int ifindex = if_nametoindex(ifname); 10268 10269 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d added_if=%d", 10270 __func__, type, ifname, ifindex, bss->added_if); 10271 if (ifindex > 0 && (bss->added_if || bss->ifindex != ifindex)) 10272 nl80211_remove_iface(drv, ifindex); 10273 else if (ifindex > 0 && !bss->added_if) { 10274 struct wpa_driver_nl80211_data *drv2; 10275 dl_list_for_each(drv2, &drv->global->interfaces, 10276 struct wpa_driver_nl80211_data, list) 10277 del_ifidx(drv2, ifindex); 10278 } 10279 10280 if (type != WPA_IF_AP_BSS) 10281 return 0; 10282 10283 if (bss->added_if_into_bridge) { 10284 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 10285 bss->ifname) < 0) 10286 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 10287 "interface %s from bridge %s: %s", 10288 bss->ifname, bss->brname, strerror(errno)); 10289 } 10290 if (bss->added_bridge) { 10291 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 10292 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 10293 "bridge %s: %s", 10294 bss->brname, strerror(errno)); 10295 } 10296 10297 if (bss != drv->first_bss) { 10298 struct i802_bss *tbss; 10299 10300 wpa_printf(MSG_DEBUG, "nl80211: Not the first BSS - remove it"); 10301 for (tbss = drv->first_bss; tbss; tbss = tbss->next) { 10302 if (tbss->next == bss) { 10303 tbss->next = bss->next; 10304 /* Unsubscribe management frames */ 10305 nl80211_teardown_ap(bss); 10306 nl80211_destroy_bss(bss); 10307 if (!bss->added_if) 10308 i802_set_iface_flags(bss, 0); 10309 os_free(bss); 10310 bss = NULL; 10311 break; 10312 } 10313 } 10314 if (bss) 10315 wpa_printf(MSG_INFO, "nl80211: %s - could not find " 10316 "BSS %p in the list", __func__, bss); 10317 } else { 10318 wpa_printf(MSG_DEBUG, "nl80211: First BSS - reassign context"); 10319 nl80211_teardown_ap(bss); 10320 if (!bss->added_if && !drv->first_bss->next) 10321 wpa_driver_nl80211_del_beacon(drv); 10322 nl80211_destroy_bss(bss); 10323 if (!bss->added_if) 10324 i802_set_iface_flags(bss, 0); 10325 if (drv->first_bss->next) { 10326 drv->first_bss = drv->first_bss->next; 10327 drv->ctx = drv->first_bss->ctx; 10328 os_free(bss); 10329 } else { 10330 wpa_printf(MSG_DEBUG, "nl80211: No second BSS to reassign context to"); 10331 } 10332 } 10333 10334 return 0; 10335} 10336 10337 10338static int cookie_handler(struct nl_msg *msg, void *arg) 10339{ 10340 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 10341 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 10342 u64 *cookie = arg; 10343 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 10344 genlmsg_attrlen(gnlh, 0), NULL); 10345 if (tb[NL80211_ATTR_COOKIE]) 10346 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 10347 return NL_SKIP; 10348} 10349 10350 10351static int nl80211_send_frame_cmd(struct i802_bss *bss, 10352 unsigned int freq, unsigned int wait, 10353 const u8 *buf, size_t buf_len, 10354 u64 *cookie_out, int no_cck, int no_ack, 10355 int offchanok) 10356{ 10357 struct wpa_driver_nl80211_data *drv = bss->drv; 10358 struct nl_msg *msg; 10359 u64 cookie; 10360 int ret = -1; 10361 10362 msg = nlmsg_alloc(); 10363 if (!msg) 10364 return -1; 10365 10366 wpa_printf(MSG_MSGDUMP, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d " 10367 "no_ack=%d offchanok=%d", 10368 freq, wait, no_cck, no_ack, offchanok); 10369 wpa_hexdump(MSG_MSGDUMP, "CMD_FRAME", buf, buf_len); 10370 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME); 10371 10372 if (nl80211_set_iface_id(msg, bss) < 0) 10373 goto nla_put_failure; 10374 if (freq) 10375 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 10376 if (wait) 10377 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait); 10378 if (offchanok && ((drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) || 10379 drv->test_use_roc_tx)) 10380 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK); 10381 if (no_cck) 10382 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 10383 if (no_ack) 10384 NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK); 10385 10386 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf); 10387 10388 cookie = 0; 10389 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 10390 msg = NULL; 10391 if (ret) { 10392 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d " 10393 "(%s) (freq=%u wait=%u)", ret, strerror(-ret), 10394 freq, wait); 10395 goto nla_put_failure; 10396 } 10397 wpa_printf(MSG_MSGDUMP, "nl80211: Frame TX command accepted%s; " 10398 "cookie 0x%llx", no_ack ? " (no ACK)" : "", 10399 (long long unsigned int) cookie); 10400 10401 if (cookie_out) 10402 *cookie_out = no_ack ? (u64) -1 : cookie; 10403 10404nla_put_failure: 10405 nlmsg_free(msg); 10406 return ret; 10407} 10408 10409 10410static int wpa_driver_nl80211_send_action(struct i802_bss *bss, 10411 unsigned int freq, 10412 unsigned int wait_time, 10413 const u8 *dst, const u8 *src, 10414 const u8 *bssid, 10415 const u8 *data, size_t data_len, 10416 int no_cck) 10417{ 10418 struct wpa_driver_nl80211_data *drv = bss->drv; 10419 int ret = -1; 10420 u8 *buf; 10421 struct ieee80211_hdr *hdr; 10422 10423 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, " 10424 "freq=%u MHz wait=%d ms no_cck=%d)", 10425 drv->ifindex, freq, wait_time, no_cck); 10426 10427 buf = os_zalloc(24 + data_len); 10428 if (buf == NULL) 10429 return ret; 10430 os_memcpy(buf + 24, data, data_len); 10431 hdr = (struct ieee80211_hdr *) buf; 10432 hdr->frame_control = 10433 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION); 10434 os_memcpy(hdr->addr1, dst, ETH_ALEN); 10435 os_memcpy(hdr->addr2, src, ETH_ALEN); 10436 os_memcpy(hdr->addr3, bssid, ETH_ALEN); 10437 10438 if (is_ap_interface(drv->nlmode) && 10439 (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) || 10440 (int) freq == bss->freq || drv->device_ap_sme || 10441 !drv->use_monitor)) 10442 ret = wpa_driver_nl80211_send_mlme(bss, buf, 24 + data_len, 10443 0, freq, no_cck, 1, 10444 wait_time); 10445 else 10446 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf, 10447 24 + data_len, 10448 &drv->send_action_cookie, 10449 no_cck, 0, 1); 10450 10451 os_free(buf); 10452 return ret; 10453} 10454 10455 10456static void wpa_driver_nl80211_send_action_cancel_wait(void *priv) 10457{ 10458 struct i802_bss *bss = priv; 10459 struct wpa_driver_nl80211_data *drv = bss->drv; 10460 struct nl_msg *msg; 10461 int ret; 10462 10463 msg = nlmsg_alloc(); 10464 if (!msg) 10465 return; 10466 10467 wpa_printf(MSG_DEBUG, "nl80211: Cancel TX frame wait: cookie=0x%llx", 10468 (long long unsigned int) drv->send_action_cookie); 10469 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL); 10470 10471 if (nl80211_set_iface_id(msg, bss) < 0) 10472 goto nla_put_failure; 10473 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie); 10474 10475 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10476 msg = NULL; 10477 if (ret) 10478 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d " 10479 "(%s)", ret, strerror(-ret)); 10480 10481 nla_put_failure: 10482 nlmsg_free(msg); 10483} 10484 10485 10486static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq, 10487 unsigned int duration) 10488{ 10489 struct i802_bss *bss = priv; 10490 struct wpa_driver_nl80211_data *drv = bss->drv; 10491 struct nl_msg *msg; 10492 int ret; 10493 u64 cookie; 10494 10495 msg = nlmsg_alloc(); 10496 if (!msg) 10497 return -1; 10498 10499 nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL); 10500 10501 if (nl80211_set_iface_id(msg, bss) < 0) 10502 goto nla_put_failure; 10503 10504 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 10505 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); 10506 10507 cookie = 0; 10508 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 10509 msg = NULL; 10510 if (ret == 0) { 10511 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie " 10512 "0x%llx for freq=%u MHz duration=%u", 10513 (long long unsigned int) cookie, freq, duration); 10514 drv->remain_on_chan_cookie = cookie; 10515 drv->pending_remain_on_chan = 1; 10516 return 0; 10517 } 10518 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel " 10519 "(freq=%d duration=%u): %d (%s)", 10520 freq, duration, ret, strerror(-ret)); 10521nla_put_failure: 10522 nlmsg_free(msg); 10523 return -1; 10524} 10525 10526 10527static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv) 10528{ 10529 struct i802_bss *bss = priv; 10530 struct wpa_driver_nl80211_data *drv = bss->drv; 10531 struct nl_msg *msg; 10532 int ret; 10533 10534 if (!drv->pending_remain_on_chan) { 10535 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel " 10536 "to cancel"); 10537 return -1; 10538 } 10539 10540 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie " 10541 "0x%llx", 10542 (long long unsigned int) drv->remain_on_chan_cookie); 10543 10544 msg = nlmsg_alloc(); 10545 if (!msg) 10546 return -1; 10547 10548 nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL); 10549 10550 if (nl80211_set_iface_id(msg, bss) < 0) 10551 goto nla_put_failure; 10552 10553 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie); 10554 10555 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10556 msg = NULL; 10557 if (ret == 0) 10558 return 0; 10559 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: " 10560 "%d (%s)", ret, strerror(-ret)); 10561nla_put_failure: 10562 nlmsg_free(msg); 10563 return -1; 10564} 10565 10566 10567static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report) 10568{ 10569 struct wpa_driver_nl80211_data *drv = bss->drv; 10570 10571 if (!report) { 10572 if (bss->nl_preq && drv->device_ap_sme && 10573 is_ap_interface(drv->nlmode) && !bss->in_deinit && 10574 !bss->static_ap) { 10575 /* 10576 * Do not disable Probe Request reporting that was 10577 * enabled in nl80211_setup_ap(). 10578 */ 10579 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of " 10580 "Probe Request reporting nl_preq=%p while " 10581 "in AP mode", bss->nl_preq); 10582 } else if (bss->nl_preq) { 10583 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request " 10584 "reporting nl_preq=%p", bss->nl_preq); 10585 nl80211_destroy_eloop_handle(&bss->nl_preq); 10586 } 10587 return 0; 10588 } 10589 10590 if (bss->nl_preq) { 10591 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting " 10592 "already on! nl_preq=%p", bss->nl_preq); 10593 return 0; 10594 } 10595 10596 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq"); 10597 if (bss->nl_preq == NULL) 10598 return -1; 10599 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request " 10600 "reporting nl_preq=%p", bss->nl_preq); 10601 10602 if (nl80211_register_frame(bss, bss->nl_preq, 10603 (WLAN_FC_TYPE_MGMT << 2) | 10604 (WLAN_FC_STYPE_PROBE_REQ << 4), 10605 NULL, 0) < 0) 10606 goto out_err; 10607 10608 nl80211_register_eloop_read(&bss->nl_preq, 10609 wpa_driver_nl80211_event_receive, 10610 bss->nl_cb); 10611 10612 return 0; 10613 10614 out_err: 10615 nl_destroy_handles(&bss->nl_preq); 10616 return -1; 10617} 10618 10619 10620static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 10621 int ifindex, int disabled) 10622{ 10623 struct nl_msg *msg; 10624 struct nlattr *bands, *band; 10625 int ret; 10626 10627 msg = nlmsg_alloc(); 10628 if (!msg) 10629 return -1; 10630 10631 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK); 10632 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 10633 10634 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES); 10635 if (!bands) 10636 goto nla_put_failure; 10637 10638 /* 10639 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything 10640 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS 10641 * rates. All 5 GHz rates are left enabled. 10642 */ 10643 band = nla_nest_start(msg, NL80211_BAND_2GHZ); 10644 if (!band) 10645 goto nla_put_failure; 10646 if (disabled) { 10647 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8, 10648 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 10649 } 10650 nla_nest_end(msg, band); 10651 10652 nla_nest_end(msg, bands); 10653 10654 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10655 msg = NULL; 10656 if (ret) { 10657 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d " 10658 "(%s)", ret, strerror(-ret)); 10659 } else 10660 drv->disabled_11b_rates = disabled; 10661 10662 return ret; 10663 10664nla_put_failure: 10665 nlmsg_free(msg); 10666 return -1; 10667} 10668 10669 10670static int wpa_driver_nl80211_deinit_ap(void *priv) 10671{ 10672 struct i802_bss *bss = priv; 10673 struct wpa_driver_nl80211_data *drv = bss->drv; 10674 if (!is_ap_interface(drv->nlmode)) 10675 return -1; 10676 wpa_driver_nl80211_del_beacon(drv); 10677 10678 /* 10679 * If the P2P GO interface was dynamically added, then it is 10680 * possible that the interface change to station is not possible. 10681 */ 10682 if (drv->nlmode == NL80211_IFTYPE_P2P_GO && bss->if_dynamic) 10683 return 0; 10684 10685 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 10686} 10687 10688 10689static int wpa_driver_nl80211_stop_ap(void *priv) 10690{ 10691 struct i802_bss *bss = priv; 10692 struct wpa_driver_nl80211_data *drv = bss->drv; 10693 if (!is_ap_interface(drv->nlmode)) 10694 return -1; 10695 wpa_driver_nl80211_del_beacon(drv); 10696 bss->beacon_set = 0; 10697 return 0; 10698} 10699 10700 10701static int wpa_driver_nl80211_deinit_p2p_cli(void *priv) 10702{ 10703 struct i802_bss *bss = priv; 10704 struct wpa_driver_nl80211_data *drv = bss->drv; 10705 if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT) 10706 return -1; 10707 10708 /* 10709 * If the P2P Client interface was dynamically added, then it is 10710 * possible that the interface change to station is not possible. 10711 */ 10712 if (bss->if_dynamic) 10713 return 0; 10714 10715 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 10716} 10717 10718 10719static void wpa_driver_nl80211_resume(void *priv) 10720{ 10721 struct i802_bss *bss = priv; 10722 10723 if (i802_set_iface_flags(bss, 1)) 10724 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on resume event"); 10725} 10726 10727 10728static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap, 10729 const u8 *ies, size_t ies_len) 10730{ 10731 struct i802_bss *bss = priv; 10732 struct wpa_driver_nl80211_data *drv = bss->drv; 10733 int ret; 10734 u8 *data, *pos; 10735 size_t data_len; 10736 const u8 *own_addr = bss->addr; 10737 10738 if (action != 1) { 10739 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action " 10740 "action %d", action); 10741 return -1; 10742 } 10743 10744 /* 10745 * Action frame payload: 10746 * Category[1] = 6 (Fast BSS Transition) 10747 * Action[1] = 1 (Fast BSS Transition Request) 10748 * STA Address 10749 * Target AP Address 10750 * FT IEs 10751 */ 10752 10753 data_len = 2 + 2 * ETH_ALEN + ies_len; 10754 data = os_malloc(data_len); 10755 if (data == NULL) 10756 return -1; 10757 pos = data; 10758 *pos++ = 0x06; /* FT Action category */ 10759 *pos++ = action; 10760 os_memcpy(pos, own_addr, ETH_ALEN); 10761 pos += ETH_ALEN; 10762 os_memcpy(pos, target_ap, ETH_ALEN); 10763 pos += ETH_ALEN; 10764 os_memcpy(pos, ies, ies_len); 10765 10766 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0, 10767 drv->bssid, own_addr, drv->bssid, 10768 data, data_len, 0); 10769 os_free(data); 10770 10771 return ret; 10772} 10773 10774 10775static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis) 10776{ 10777 struct i802_bss *bss = priv; 10778 struct wpa_driver_nl80211_data *drv = bss->drv; 10779 struct nl_msg *msg; 10780 struct nlattr *cqm; 10781 int ret = -1; 10782 10783 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d " 10784 "hysteresis=%d", threshold, hysteresis); 10785 10786 msg = nlmsg_alloc(); 10787 if (!msg) 10788 return -1; 10789 10790 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM); 10791 10792 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10793 10794 cqm = nla_nest_start(msg, NL80211_ATTR_CQM); 10795 if (cqm == NULL) 10796 goto nla_put_failure; 10797 10798 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THOLD, threshold); 10799 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_HYST, hysteresis); 10800 nla_nest_end(msg, cqm); 10801 10802 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10803 msg = NULL; 10804 10805nla_put_failure: 10806 nlmsg_free(msg); 10807 return ret; 10808} 10809 10810 10811static int get_channel_width(struct nl_msg *msg, void *arg) 10812{ 10813 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 10814 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 10815 struct wpa_signal_info *sig_change = arg; 10816 10817 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 10818 genlmsg_attrlen(gnlh, 0), NULL); 10819 10820 sig_change->center_frq1 = -1; 10821 sig_change->center_frq2 = -1; 10822 sig_change->chanwidth = CHAN_WIDTH_UNKNOWN; 10823 10824 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) { 10825 sig_change->chanwidth = convert2width( 10826 nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH])); 10827 if (tb[NL80211_ATTR_CENTER_FREQ1]) 10828 sig_change->center_frq1 = 10829 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); 10830 if (tb[NL80211_ATTR_CENTER_FREQ2]) 10831 sig_change->center_frq2 = 10832 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); 10833 } 10834 10835 return NL_SKIP; 10836} 10837 10838 10839static int nl80211_get_channel_width(struct wpa_driver_nl80211_data *drv, 10840 struct wpa_signal_info *sig) 10841{ 10842 struct nl_msg *msg; 10843 10844 msg = nlmsg_alloc(); 10845 if (!msg) 10846 return -ENOMEM; 10847 10848 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_INTERFACE); 10849 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10850 10851 return send_and_recv_msgs(drv, msg, get_channel_width, sig); 10852 10853nla_put_failure: 10854 nlmsg_free(msg); 10855 return -ENOBUFS; 10856} 10857 10858 10859static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si) 10860{ 10861 struct i802_bss *bss = priv; 10862 struct wpa_driver_nl80211_data *drv = bss->drv; 10863 int res; 10864 10865 os_memset(si, 0, sizeof(*si)); 10866 res = nl80211_get_link_signal(drv, si); 10867 if (res != 0) 10868 return res; 10869 10870 res = nl80211_get_channel_width(drv, si); 10871 if (res != 0) 10872 return res; 10873 10874 return nl80211_get_link_noise(drv, si); 10875} 10876 10877 10878static int wpa_driver_nl80211_shared_freq(void *priv) 10879{ 10880 struct i802_bss *bss = priv; 10881 struct wpa_driver_nl80211_data *drv = bss->drv; 10882 struct wpa_driver_nl80211_data *driver; 10883 int freq = 0; 10884 10885 /* 10886 * If the same PHY is in connected state with some other interface, 10887 * then retrieve the assoc freq. 10888 */ 10889 wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s", 10890 drv->phyname); 10891 10892 dl_list_for_each(driver, &drv->global->interfaces, 10893 struct wpa_driver_nl80211_data, list) { 10894 if (drv == driver || 10895 os_strcmp(drv->phyname, driver->phyname) != 0 || 10896 !driver->associated) 10897 continue; 10898 10899 wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s " 10900 MACSTR, 10901 driver->phyname, driver->first_bss->ifname, 10902 MAC2STR(driver->first_bss->addr)); 10903 if (is_ap_interface(driver->nlmode)) 10904 freq = driver->first_bss->freq; 10905 else 10906 freq = nl80211_get_assoc_freq(driver); 10907 wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d", 10908 drv->phyname, freq); 10909 } 10910 10911 if (!freq) 10912 wpa_printf(MSG_DEBUG, "nl80211: No shared interface for " 10913 "PHY (%s) in associated state", drv->phyname); 10914 10915 return freq; 10916} 10917 10918 10919static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len, 10920 int encrypt) 10921{ 10922 struct i802_bss *bss = priv; 10923 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0, 10924 0, 0, 0, 0); 10925} 10926 10927 10928static int nl80211_set_param(void *priv, const char *param) 10929{ 10930 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param); 10931 if (param == NULL) 10932 return 0; 10933 10934#ifdef CONFIG_P2P 10935 if (os_strstr(param, "use_p2p_group_interface=1")) { 10936 struct i802_bss *bss = priv; 10937 struct wpa_driver_nl80211_data *drv = bss->drv; 10938 10939 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 10940 "interface"); 10941 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 10942 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 10943 } 10944 10945 if (os_strstr(param, "p2p_device=1")) { 10946 struct i802_bss *bss = priv; 10947 struct wpa_driver_nl80211_data *drv = bss->drv; 10948 drv->allow_p2p_device = 1; 10949 } 10950#endif /* CONFIG_P2P */ 10951 10952 if (os_strstr(param, "use_monitor=1")) { 10953 struct i802_bss *bss = priv; 10954 struct wpa_driver_nl80211_data *drv = bss->drv; 10955 drv->use_monitor = 1; 10956 } 10957 10958 if (os_strstr(param, "force_connect_cmd=1")) { 10959 struct i802_bss *bss = priv; 10960 struct wpa_driver_nl80211_data *drv = bss->drv; 10961 drv->capa.flags &= ~WPA_DRIVER_FLAGS_SME; 10962 } 10963 10964 if (os_strstr(param, "no_offchannel_tx=1")) { 10965 struct i802_bss *bss = priv; 10966 struct wpa_driver_nl80211_data *drv = bss->drv; 10967 drv->capa.flags &= ~WPA_DRIVER_FLAGS_OFFCHANNEL_TX; 10968 drv->test_use_roc_tx = 1; 10969 } 10970 10971 return 0; 10972} 10973 10974 10975static void * nl80211_global_init(void) 10976{ 10977 struct nl80211_global *global; 10978 struct netlink_config *cfg; 10979 10980 global = os_zalloc(sizeof(*global)); 10981 if (global == NULL) 10982 return NULL; 10983 global->ioctl_sock = -1; 10984 dl_list_init(&global->interfaces); 10985 global->if_add_ifindex = -1; 10986 10987 cfg = os_zalloc(sizeof(*cfg)); 10988 if (cfg == NULL) 10989 goto err; 10990 10991 cfg->ctx = global; 10992 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink; 10993 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink; 10994 global->netlink = netlink_init(cfg); 10995 if (global->netlink == NULL) { 10996 os_free(cfg); 10997 goto err; 10998 } 10999 11000 if (wpa_driver_nl80211_init_nl_global(global) < 0) 11001 goto err; 11002 11003 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0); 11004 if (global->ioctl_sock < 0) { 11005 wpa_printf(MSG_ERROR, "nl80211: socket(PF_INET,SOCK_DGRAM) failed: %s", 11006 strerror(errno)); 11007 goto err; 11008 } 11009 11010 return global; 11011 11012err: 11013 nl80211_global_deinit(global); 11014 return NULL; 11015} 11016 11017 11018static void nl80211_global_deinit(void *priv) 11019{ 11020 struct nl80211_global *global = priv; 11021 if (global == NULL) 11022 return; 11023 if (!dl_list_empty(&global->interfaces)) { 11024 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at " 11025 "nl80211_global_deinit", 11026 dl_list_len(&global->interfaces)); 11027 } 11028 11029 if (global->netlink) 11030 netlink_deinit(global->netlink); 11031 11032 nl_destroy_handles(&global->nl); 11033 11034 if (global->nl_event) 11035 nl80211_destroy_eloop_handle(&global->nl_event); 11036 11037 nl_cb_put(global->nl_cb); 11038 11039 if (global->ioctl_sock >= 0) 11040 close(global->ioctl_sock); 11041 11042 os_free(global); 11043} 11044 11045 11046static const char * nl80211_get_radio_name(void *priv) 11047{ 11048 struct i802_bss *bss = priv; 11049 struct wpa_driver_nl80211_data *drv = bss->drv; 11050 return drv->phyname; 11051} 11052 11053 11054static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid, 11055 const u8 *pmkid) 11056{ 11057 struct nl_msg *msg; 11058 11059 msg = nlmsg_alloc(); 11060 if (!msg) 11061 return -ENOMEM; 11062 11063 nl80211_cmd(bss->drv, msg, 0, cmd); 11064 11065 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 11066 if (pmkid) 11067 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid); 11068 if (bssid) 11069 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); 11070 11071 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 11072 nla_put_failure: 11073 nlmsg_free(msg); 11074 return -ENOBUFS; 11075} 11076 11077 11078static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 11079{ 11080 struct i802_bss *bss = priv; 11081 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid)); 11082 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid); 11083} 11084 11085 11086static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 11087{ 11088 struct i802_bss *bss = priv; 11089 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR, 11090 MAC2STR(bssid)); 11091 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid); 11092} 11093 11094 11095static int nl80211_flush_pmkid(void *priv) 11096{ 11097 struct i802_bss *bss = priv; 11098 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs"); 11099 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL); 11100} 11101 11102 11103static void clean_survey_results(struct survey_results *survey_results) 11104{ 11105 struct freq_survey *survey, *tmp; 11106 11107 if (dl_list_empty(&survey_results->survey_list)) 11108 return; 11109 11110 dl_list_for_each_safe(survey, tmp, &survey_results->survey_list, 11111 struct freq_survey, list) { 11112 dl_list_del(&survey->list); 11113 os_free(survey); 11114 } 11115} 11116 11117 11118static void add_survey(struct nlattr **sinfo, u32 ifidx, 11119 struct dl_list *survey_list) 11120{ 11121 struct freq_survey *survey; 11122 11123 survey = os_zalloc(sizeof(struct freq_survey)); 11124 if (!survey) 11125 return; 11126 11127 survey->ifidx = ifidx; 11128 survey->freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); 11129 survey->filled = 0; 11130 11131 if (sinfo[NL80211_SURVEY_INFO_NOISE]) { 11132 survey->nf = (int8_t) 11133 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 11134 survey->filled |= SURVEY_HAS_NF; 11135 } 11136 11137 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]) { 11138 survey->channel_time = 11139 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]); 11140 survey->filled |= SURVEY_HAS_CHAN_TIME; 11141 } 11142 11143 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]) { 11144 survey->channel_time_busy = 11145 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]); 11146 survey->filled |= SURVEY_HAS_CHAN_TIME_BUSY; 11147 } 11148 11149 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]) { 11150 survey->channel_time_rx = 11151 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]); 11152 survey->filled |= SURVEY_HAS_CHAN_TIME_RX; 11153 } 11154 11155 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]) { 11156 survey->channel_time_tx = 11157 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]); 11158 survey->filled |= SURVEY_HAS_CHAN_TIME_TX; 11159 } 11160 11161 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)", 11162 survey->freq, 11163 survey->nf, 11164 (unsigned long int) survey->channel_time, 11165 (unsigned long int) survey->channel_time_busy, 11166 (unsigned long int) survey->channel_time_tx, 11167 (unsigned long int) survey->channel_time_rx, 11168 survey->filled); 11169 11170 dl_list_add_tail(survey_list, &survey->list); 11171} 11172 11173 11174static int check_survey_ok(struct nlattr **sinfo, u32 surveyed_freq, 11175 unsigned int freq_filter) 11176{ 11177 if (!freq_filter) 11178 return 1; 11179 11180 return freq_filter == surveyed_freq; 11181} 11182 11183 11184static int survey_handler(struct nl_msg *msg, void *arg) 11185{ 11186 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 11187 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 11188 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 11189 struct survey_results *survey_results; 11190 u32 surveyed_freq = 0; 11191 u32 ifidx; 11192 11193 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 11194 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 11195 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 11196 }; 11197 11198 survey_results = (struct survey_results *) arg; 11199 11200 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 11201 genlmsg_attrlen(gnlh, 0), NULL); 11202 11203 if (!tb[NL80211_ATTR_IFINDEX]) 11204 return NL_SKIP; 11205 11206 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 11207 11208 if (!tb[NL80211_ATTR_SURVEY_INFO]) 11209 return NL_SKIP; 11210 11211 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 11212 tb[NL80211_ATTR_SURVEY_INFO], 11213 survey_policy)) 11214 return NL_SKIP; 11215 11216 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) { 11217 wpa_printf(MSG_ERROR, "nl80211: Invalid survey data"); 11218 return NL_SKIP; 11219 } 11220 11221 surveyed_freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); 11222 11223 if (!check_survey_ok(sinfo, surveyed_freq, 11224 survey_results->freq_filter)) 11225 return NL_SKIP; 11226 11227 if (survey_results->freq_filter && 11228 survey_results->freq_filter != surveyed_freq) { 11229 wpa_printf(MSG_EXCESSIVE, "nl80211: Ignoring survey data for freq %d MHz", 11230 surveyed_freq); 11231 return NL_SKIP; 11232 } 11233 11234 add_survey(sinfo, ifidx, &survey_results->survey_list); 11235 11236 return NL_SKIP; 11237} 11238 11239 11240static int wpa_driver_nl80211_get_survey(void *priv, unsigned int freq) 11241{ 11242 struct i802_bss *bss = priv; 11243 struct wpa_driver_nl80211_data *drv = bss->drv; 11244 struct nl_msg *msg; 11245 int err = -ENOBUFS; 11246 union wpa_event_data data; 11247 struct survey_results *survey_results; 11248 11249 os_memset(&data, 0, sizeof(data)); 11250 survey_results = &data.survey_results; 11251 11252 dl_list_init(&survey_results->survey_list); 11253 11254 msg = nlmsg_alloc(); 11255 if (!msg) 11256 goto nla_put_failure; 11257 11258 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 11259 11260 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11261 11262 if (freq) 11263 data.survey_results.freq_filter = freq; 11264 11265 do { 11266 wpa_printf(MSG_DEBUG, "nl80211: Fetch survey data"); 11267 err = send_and_recv_msgs(drv, msg, survey_handler, 11268 survey_results); 11269 } while (err > 0); 11270 11271 if (err) { 11272 wpa_printf(MSG_ERROR, "nl80211: Failed to process survey data"); 11273 goto out_clean; 11274 } 11275 11276 wpa_supplicant_event(drv->ctx, EVENT_SURVEY, &data); 11277 11278out_clean: 11279 clean_survey_results(survey_results); 11280nla_put_failure: 11281 return err; 11282} 11283 11284 11285static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck, 11286 const u8 *replay_ctr) 11287{ 11288 struct i802_bss *bss = priv; 11289 struct wpa_driver_nl80211_data *drv = bss->drv; 11290 struct nlattr *replay_nested; 11291 struct nl_msg *msg; 11292 11293 msg = nlmsg_alloc(); 11294 if (!msg) 11295 return; 11296 11297 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD); 11298 11299 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 11300 11301 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); 11302 if (!replay_nested) 11303 goto nla_put_failure; 11304 11305 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek); 11306 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck); 11307 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN, 11308 replay_ctr); 11309 11310 nla_nest_end(msg, replay_nested); 11311 11312 send_and_recv_msgs(drv, msg, NULL, NULL); 11313 return; 11314 nla_put_failure: 11315 nlmsg_free(msg); 11316} 11317 11318 11319static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr, 11320 const u8 *addr, int qos) 11321{ 11322 /* send data frame to poll STA and check whether 11323 * this frame is ACKed */ 11324 struct { 11325 struct ieee80211_hdr hdr; 11326 u16 qos_ctl; 11327 } STRUCT_PACKED nulldata; 11328 size_t size; 11329 11330 /* Send data frame to poll STA and check whether this frame is ACKed */ 11331 11332 os_memset(&nulldata, 0, sizeof(nulldata)); 11333 11334 if (qos) { 11335 nulldata.hdr.frame_control = 11336 IEEE80211_FC(WLAN_FC_TYPE_DATA, 11337 WLAN_FC_STYPE_QOS_NULL); 11338 size = sizeof(nulldata); 11339 } else { 11340 nulldata.hdr.frame_control = 11341 IEEE80211_FC(WLAN_FC_TYPE_DATA, 11342 WLAN_FC_STYPE_NULLFUNC); 11343 size = sizeof(struct ieee80211_hdr); 11344 } 11345 11346 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS); 11347 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN); 11348 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 11349 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 11350 11351 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0, 0, 0, 11352 0, 0) < 0) 11353 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to " 11354 "send poll frame"); 11355} 11356 11357static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr, 11358 int qos) 11359{ 11360 struct i802_bss *bss = priv; 11361 struct wpa_driver_nl80211_data *drv = bss->drv; 11362 struct nl_msg *msg; 11363 11364 if (!drv->poll_command_supported) { 11365 nl80211_send_null_frame(bss, own_addr, addr, qos); 11366 return; 11367 } 11368 11369 msg = nlmsg_alloc(); 11370 if (!msg) 11371 return; 11372 11373 nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT); 11374 11375 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 11376 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 11377 11378 send_and_recv_msgs(drv, msg, NULL, NULL); 11379 return; 11380 nla_put_failure: 11381 nlmsg_free(msg); 11382} 11383 11384 11385static int nl80211_set_power_save(struct i802_bss *bss, int enabled) 11386{ 11387 struct nl_msg *msg; 11388 11389 msg = nlmsg_alloc(); 11390 if (!msg) 11391 return -ENOMEM; 11392 11393 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE); 11394 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 11395 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, 11396 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED); 11397 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 11398nla_put_failure: 11399 nlmsg_free(msg); 11400 return -ENOBUFS; 11401} 11402 11403 11404static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps, 11405 int ctwindow) 11406{ 11407 struct i802_bss *bss = priv; 11408 11409 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d " 11410 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow); 11411 11412 if (opp_ps != -1 || ctwindow != -1) { 11413#ifdef ANDROID_P2P 11414 wpa_driver_set_p2p_ps(priv, legacy_ps, opp_ps, ctwindow); 11415#else /* ANDROID_P2P */ 11416 return -1; /* Not yet supported */ 11417#endif /* ANDROID_P2P */ 11418 } 11419 11420 if (legacy_ps == -1) 11421 return 0; 11422 if (legacy_ps != 0 && legacy_ps != 1) 11423 return -1; /* Not yet supported */ 11424 11425 return nl80211_set_power_save(bss, legacy_ps); 11426} 11427 11428 11429static int nl80211_start_radar_detection(void *priv, 11430 struct hostapd_freq_params *freq) 11431{ 11432 struct i802_bss *bss = priv; 11433 struct wpa_driver_nl80211_data *drv = bss->drv; 11434 struct nl_msg *msg; 11435 int ret; 11436 11437 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)", 11438 freq->freq, freq->ht_enabled, freq->vht_enabled, 11439 freq->bandwidth, freq->center_freq1, freq->center_freq2); 11440 11441 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_RADAR)) { 11442 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support radar " 11443 "detection"); 11444 return -1; 11445 } 11446 11447 msg = nlmsg_alloc(); 11448 if (!msg) 11449 return -1; 11450 11451 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_RADAR_DETECT); 11452 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11453 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); 11454 11455 if (freq->vht_enabled) { 11456 switch (freq->bandwidth) { 11457 case 20: 11458 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 11459 NL80211_CHAN_WIDTH_20); 11460 break; 11461 case 40: 11462 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 11463 NL80211_CHAN_WIDTH_40); 11464 break; 11465 case 80: 11466 if (freq->center_freq2) 11467 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 11468 NL80211_CHAN_WIDTH_80P80); 11469 else 11470 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 11471 NL80211_CHAN_WIDTH_80); 11472 break; 11473 case 160: 11474 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 11475 NL80211_CHAN_WIDTH_160); 11476 break; 11477 default: 11478 return -1; 11479 } 11480 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); 11481 if (freq->center_freq2) 11482 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, 11483 freq->center_freq2); 11484 } else if (freq->ht_enabled) { 11485 switch (freq->sec_channel_offset) { 11486 case -1: 11487 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 11488 NL80211_CHAN_HT40MINUS); 11489 break; 11490 case 1: 11491 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 11492 NL80211_CHAN_HT40PLUS); 11493 break; 11494 default: 11495 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 11496 NL80211_CHAN_HT20); 11497 break; 11498 } 11499 } 11500 11501 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 11502 if (ret == 0) 11503 return 0; 11504 wpa_printf(MSG_DEBUG, "nl80211: Failed to start radar detection: " 11505 "%d (%s)", ret, strerror(-ret)); 11506nla_put_failure: 11507 return -1; 11508} 11509 11510#ifdef CONFIG_TDLS 11511 11512static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code, 11513 u8 dialog_token, u16 status_code, 11514 u32 peer_capab, const u8 *buf, size_t len) 11515{ 11516 struct i802_bss *bss = priv; 11517 struct wpa_driver_nl80211_data *drv = bss->drv; 11518 struct nl_msg *msg; 11519 11520 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 11521 return -EOPNOTSUPP; 11522 11523 if (!dst) 11524 return -EINVAL; 11525 11526 msg = nlmsg_alloc(); 11527 if (!msg) 11528 return -ENOMEM; 11529 11530 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT); 11531 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11532 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); 11533 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code); 11534 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token); 11535 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code); 11536 if (peer_capab) { 11537 /* 11538 * The internal enum tdls_peer_capability definition is 11539 * currently identical with the nl80211 enum 11540 * nl80211_tdls_peer_capability, so no conversion is needed 11541 * here. 11542 */ 11543 NLA_PUT_U32(msg, NL80211_ATTR_TDLS_PEER_CAPABILITY, peer_capab); 11544 } 11545 NLA_PUT(msg, NL80211_ATTR_IE, len, buf); 11546 11547 return send_and_recv_msgs(drv, msg, NULL, NULL); 11548 11549nla_put_failure: 11550 nlmsg_free(msg); 11551 return -ENOBUFS; 11552} 11553 11554 11555static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer) 11556{ 11557 struct i802_bss *bss = priv; 11558 struct wpa_driver_nl80211_data *drv = bss->drv; 11559 struct nl_msg *msg; 11560 enum nl80211_tdls_operation nl80211_oper; 11561 11562 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 11563 return -EOPNOTSUPP; 11564 11565 switch (oper) { 11566 case TDLS_DISCOVERY_REQ: 11567 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ; 11568 break; 11569 case TDLS_SETUP: 11570 nl80211_oper = NL80211_TDLS_SETUP; 11571 break; 11572 case TDLS_TEARDOWN: 11573 nl80211_oper = NL80211_TDLS_TEARDOWN; 11574 break; 11575 case TDLS_ENABLE_LINK: 11576 nl80211_oper = NL80211_TDLS_ENABLE_LINK; 11577 break; 11578 case TDLS_DISABLE_LINK: 11579 nl80211_oper = NL80211_TDLS_DISABLE_LINK; 11580 break; 11581 case TDLS_ENABLE: 11582 return 0; 11583 case TDLS_DISABLE: 11584 return 0; 11585 default: 11586 return -EINVAL; 11587 } 11588 11589 msg = nlmsg_alloc(); 11590 if (!msg) 11591 return -ENOMEM; 11592 11593 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER); 11594 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper); 11595 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11596 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer); 11597 11598 return send_and_recv_msgs(drv, msg, NULL, NULL); 11599 11600nla_put_failure: 11601 nlmsg_free(msg); 11602 return -ENOBUFS; 11603} 11604 11605#endif /* CONFIG TDLS */ 11606 11607 11608#ifdef ANDROID 11609 11610typedef struct android_wifi_priv_cmd { 11611 char *buf; 11612 int used_len; 11613 int total_len; 11614} android_wifi_priv_cmd; 11615 11616static int drv_errors = 0; 11617 11618static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv) 11619{ 11620 drv_errors++; 11621 if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) { 11622 drv_errors = 0; 11623 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED"); 11624 } 11625} 11626 11627 11628static int android_priv_cmd(struct i802_bss *bss, const char *cmd) 11629{ 11630 struct wpa_driver_nl80211_data *drv = bss->drv; 11631 struct ifreq ifr; 11632 android_wifi_priv_cmd priv_cmd; 11633 char buf[MAX_DRV_CMD_SIZE]; 11634 int ret; 11635 11636 os_memset(&ifr, 0, sizeof(ifr)); 11637 os_memset(&priv_cmd, 0, sizeof(priv_cmd)); 11638 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 11639 11640 os_memset(buf, 0, sizeof(buf)); 11641 os_strlcpy(buf, cmd, sizeof(buf)); 11642 11643 priv_cmd.buf = buf; 11644 priv_cmd.used_len = sizeof(buf); 11645 priv_cmd.total_len = sizeof(buf); 11646 ifr.ifr_data = &priv_cmd; 11647 11648 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 11649 if (ret < 0) { 11650 wpa_printf(MSG_ERROR, "%s: failed to issue private commands", 11651 __func__); 11652 wpa_driver_send_hang_msg(drv); 11653 return ret; 11654 } 11655 11656 drv_errors = 0; 11657 return 0; 11658} 11659 11660 11661static int android_pno_start(struct i802_bss *bss, 11662 struct wpa_driver_scan_params *params) 11663{ 11664 struct wpa_driver_nl80211_data *drv = bss->drv; 11665 struct ifreq ifr; 11666 android_wifi_priv_cmd priv_cmd; 11667 int ret = 0, i = 0, bp; 11668 char buf[WEXT_PNO_MAX_COMMAND_SIZE]; 11669 11670 bp = WEXT_PNOSETUP_HEADER_SIZE; 11671 os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp); 11672 buf[bp++] = WEXT_PNO_TLV_PREFIX; 11673 buf[bp++] = WEXT_PNO_TLV_VERSION; 11674 buf[bp++] = WEXT_PNO_TLV_SUBVERSION; 11675 buf[bp++] = WEXT_PNO_TLV_RESERVED; 11676 11677 while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) { 11678 /* Check that there is enough space needed for 1 more SSID, the 11679 * other sections and null termination */ 11680 if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN + 11681 WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf)) 11682 break; 11683 wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan", 11684 params->ssids[i].ssid, 11685 params->ssids[i].ssid_len); 11686 buf[bp++] = WEXT_PNO_SSID_SECTION; 11687 buf[bp++] = params->ssids[i].ssid_len; 11688 os_memcpy(&buf[bp], params->ssids[i].ssid, 11689 params->ssids[i].ssid_len); 11690 bp += params->ssids[i].ssid_len; 11691 i++; 11692 } 11693 11694 buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION; 11695 os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x", 11696 WEXT_PNO_SCAN_INTERVAL); 11697 bp += WEXT_PNO_SCAN_INTERVAL_LENGTH; 11698 11699 buf[bp++] = WEXT_PNO_REPEAT_SECTION; 11700 os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x", 11701 WEXT_PNO_REPEAT); 11702 bp += WEXT_PNO_REPEAT_LENGTH; 11703 11704 buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION; 11705 os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x", 11706 WEXT_PNO_MAX_REPEAT); 11707 bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1; 11708 11709 memset(&ifr, 0, sizeof(ifr)); 11710 memset(&priv_cmd, 0, sizeof(priv_cmd)); 11711 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 11712 11713 priv_cmd.buf = buf; 11714 priv_cmd.used_len = bp; 11715 priv_cmd.total_len = bp; 11716 ifr.ifr_data = &priv_cmd; 11717 11718 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 11719 11720 if (ret < 0) { 11721 wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d", 11722 ret); 11723 wpa_driver_send_hang_msg(drv); 11724 return ret; 11725 } 11726 11727 drv_errors = 0; 11728 11729 return android_priv_cmd(bss, "PNOFORCE 1"); 11730} 11731 11732 11733static int android_pno_stop(struct i802_bss *bss) 11734{ 11735 return android_priv_cmd(bss, "PNOFORCE 0"); 11736} 11737 11738#endif /* ANDROID */ 11739 11740 11741static int driver_nl80211_set_key(const char *ifname, void *priv, 11742 enum wpa_alg alg, const u8 *addr, 11743 int key_idx, int set_tx, 11744 const u8 *seq, size_t seq_len, 11745 const u8 *key, size_t key_len) 11746{ 11747 struct i802_bss *bss = priv; 11748 return wpa_driver_nl80211_set_key(ifname, bss, alg, addr, key_idx, 11749 set_tx, seq, seq_len, key, key_len); 11750} 11751 11752 11753static int driver_nl80211_scan2(void *priv, 11754 struct wpa_driver_scan_params *params) 11755{ 11756 struct i802_bss *bss = priv; 11757 return wpa_driver_nl80211_scan(bss, params); 11758} 11759 11760 11761static int driver_nl80211_deauthenticate(void *priv, const u8 *addr, 11762 int reason_code) 11763{ 11764 struct i802_bss *bss = priv; 11765 return wpa_driver_nl80211_deauthenticate(bss, addr, reason_code); 11766} 11767 11768 11769static int driver_nl80211_authenticate(void *priv, 11770 struct wpa_driver_auth_params *params) 11771{ 11772 struct i802_bss *bss = priv; 11773 return wpa_driver_nl80211_authenticate(bss, params); 11774} 11775 11776 11777static void driver_nl80211_deinit(void *priv) 11778{ 11779 struct i802_bss *bss = priv; 11780 wpa_driver_nl80211_deinit(bss); 11781} 11782 11783 11784static int driver_nl80211_if_remove(void *priv, enum wpa_driver_if_type type, 11785 const char *ifname) 11786{ 11787 struct i802_bss *bss = priv; 11788 return wpa_driver_nl80211_if_remove(bss, type, ifname); 11789} 11790 11791 11792static int driver_nl80211_send_mlme(void *priv, const u8 *data, 11793 size_t data_len, int noack) 11794{ 11795 struct i802_bss *bss = priv; 11796 return wpa_driver_nl80211_send_mlme(bss, data, data_len, noack, 11797 0, 0, 0, 0); 11798} 11799 11800 11801static int driver_nl80211_sta_remove(void *priv, const u8 *addr) 11802{ 11803 struct i802_bss *bss = priv; 11804 return wpa_driver_nl80211_sta_remove(bss, addr); 11805} 11806 11807 11808static int driver_nl80211_set_sta_vlan(void *priv, const u8 *addr, 11809 const char *ifname, int vlan_id) 11810{ 11811 struct i802_bss *bss = priv; 11812 return i802_set_sta_vlan(bss, addr, ifname, vlan_id); 11813} 11814 11815 11816static int driver_nl80211_read_sta_data(void *priv, 11817 struct hostap_sta_driver_data *data, 11818 const u8 *addr) 11819{ 11820 struct i802_bss *bss = priv; 11821 return i802_read_sta_data(bss, data, addr); 11822} 11823 11824 11825static int driver_nl80211_send_action(void *priv, unsigned int freq, 11826 unsigned int wait_time, 11827 const u8 *dst, const u8 *src, 11828 const u8 *bssid, 11829 const u8 *data, size_t data_len, 11830 int no_cck) 11831{ 11832 struct i802_bss *bss = priv; 11833 return wpa_driver_nl80211_send_action(bss, freq, wait_time, dst, src, 11834 bssid, data, data_len, no_cck); 11835} 11836 11837 11838static int driver_nl80211_probe_req_report(void *priv, int report) 11839{ 11840 struct i802_bss *bss = priv; 11841 return wpa_driver_nl80211_probe_req_report(bss, report); 11842} 11843 11844 11845static int wpa_driver_nl80211_update_ft_ies(void *priv, const u8 *md, 11846 const u8 *ies, size_t ies_len) 11847{ 11848 int ret; 11849 struct nl_msg *msg; 11850 struct i802_bss *bss = priv; 11851 struct wpa_driver_nl80211_data *drv = bss->drv; 11852 u16 mdid = WPA_GET_LE16(md); 11853 11854 msg = nlmsg_alloc(); 11855 if (!msg) 11856 return -ENOMEM; 11857 11858 wpa_printf(MSG_DEBUG, "nl80211: Updating FT IEs"); 11859 nl80211_cmd(drv, msg, 0, NL80211_CMD_UPDATE_FT_IES); 11860 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11861 NLA_PUT(msg, NL80211_ATTR_IE, ies_len, ies); 11862 NLA_PUT_U16(msg, NL80211_ATTR_MDID, mdid); 11863 11864 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 11865 if (ret) { 11866 wpa_printf(MSG_DEBUG, "nl80211: update_ft_ies failed " 11867 "err=%d (%s)", ret, strerror(-ret)); 11868 } 11869 11870 return ret; 11871 11872nla_put_failure: 11873 nlmsg_free(msg); 11874 return -ENOBUFS; 11875} 11876 11877 11878const u8 * wpa_driver_nl80211_get_macaddr(void *priv) 11879{ 11880 struct i802_bss *bss = priv; 11881 struct wpa_driver_nl80211_data *drv = bss->drv; 11882 11883 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) 11884 return NULL; 11885 11886 return bss->addr; 11887} 11888 11889 11890static const char * scan_state_str(enum scan_states scan_state) 11891{ 11892 switch (scan_state) { 11893 case NO_SCAN: 11894 return "NO_SCAN"; 11895 case SCAN_REQUESTED: 11896 return "SCAN_REQUESTED"; 11897 case SCAN_STARTED: 11898 return "SCAN_STARTED"; 11899 case SCAN_COMPLETED: 11900 return "SCAN_COMPLETED"; 11901 case SCAN_ABORTED: 11902 return "SCAN_ABORTED"; 11903 case SCHED_SCAN_STARTED: 11904 return "SCHED_SCAN_STARTED"; 11905 case SCHED_SCAN_STOPPED: 11906 return "SCHED_SCAN_STOPPED"; 11907 case SCHED_SCAN_RESULTS: 11908 return "SCHED_SCAN_RESULTS"; 11909 } 11910 11911 return "??"; 11912} 11913 11914 11915static int wpa_driver_nl80211_status(void *priv, char *buf, size_t buflen) 11916{ 11917 struct i802_bss *bss = priv; 11918 struct wpa_driver_nl80211_data *drv = bss->drv; 11919 int res; 11920 char *pos, *end; 11921 11922 pos = buf; 11923 end = buf + buflen; 11924 11925 res = os_snprintf(pos, end - pos, 11926 "ifindex=%d\n" 11927 "ifname=%s\n" 11928 "brname=%s\n" 11929 "addr=" MACSTR "\n" 11930 "freq=%d\n" 11931 "%s%s%s%s%s", 11932 bss->ifindex, 11933 bss->ifname, 11934 bss->brname, 11935 MAC2STR(bss->addr), 11936 bss->freq, 11937 bss->beacon_set ? "beacon_set=1\n" : "", 11938 bss->added_if_into_bridge ? 11939 "added_if_into_bridge=1\n" : "", 11940 bss->added_bridge ? "added_bridge=1\n" : "", 11941 bss->in_deinit ? "in_deinit=1\n" : "", 11942 bss->if_dynamic ? "if_dynamic=1\n" : ""); 11943 if (res < 0 || res >= end - pos) 11944 return pos - buf; 11945 pos += res; 11946 11947 if (bss->wdev_id_set) { 11948 res = os_snprintf(pos, end - pos, "wdev_id=%llu\n", 11949 (unsigned long long) bss->wdev_id); 11950 if (res < 0 || res >= end - pos) 11951 return pos - buf; 11952 pos += res; 11953 } 11954 11955 res = os_snprintf(pos, end - pos, 11956 "phyname=%s\n" 11957 "drv_ifindex=%d\n" 11958 "operstate=%d\n" 11959 "scan_state=%s\n" 11960 "auth_bssid=" MACSTR "\n" 11961 "auth_attempt_bssid=" MACSTR "\n" 11962 "bssid=" MACSTR "\n" 11963 "prev_bssid=" MACSTR "\n" 11964 "associated=%d\n" 11965 "assoc_freq=%u\n" 11966 "monitor_sock=%d\n" 11967 "monitor_ifidx=%d\n" 11968 "monitor_refcount=%d\n" 11969 "last_mgmt_freq=%u\n" 11970 "eapol_tx_sock=%d\n" 11971 "%s%s%s%s%s%s%s%s%s%s%s%s%s%s", 11972 drv->phyname, 11973 drv->ifindex, 11974 drv->operstate, 11975 scan_state_str(drv->scan_state), 11976 MAC2STR(drv->auth_bssid), 11977 MAC2STR(drv->auth_attempt_bssid), 11978 MAC2STR(drv->bssid), 11979 MAC2STR(drv->prev_bssid), 11980 drv->associated, 11981 drv->assoc_freq, 11982 drv->monitor_sock, 11983 drv->monitor_ifidx, 11984 drv->monitor_refcount, 11985 drv->last_mgmt_freq, 11986 drv->eapol_tx_sock, 11987 drv->ignore_if_down_event ? 11988 "ignore_if_down_event=1\n" : "", 11989 drv->scan_complete_events ? 11990 "scan_complete_events=1\n" : "", 11991 drv->disabled_11b_rates ? 11992 "disabled_11b_rates=1\n" : "", 11993 drv->pending_remain_on_chan ? 11994 "pending_remain_on_chan=1\n" : "", 11995 drv->in_interface_list ? "in_interface_list=1\n" : "", 11996 drv->device_ap_sme ? "device_ap_sme=1\n" : "", 11997 drv->poll_command_supported ? 11998 "poll_command_supported=1\n" : "", 11999 drv->data_tx_status ? "data_tx_status=1\n" : "", 12000 drv->scan_for_auth ? "scan_for_auth=1\n" : "", 12001 drv->retry_auth ? "retry_auth=1\n" : "", 12002 drv->use_monitor ? "use_monitor=1\n" : "", 12003 drv->ignore_next_local_disconnect ? 12004 "ignore_next_local_disconnect=1\n" : "", 12005 drv->ignore_next_local_deauth ? 12006 "ignore_next_local_deauth=1\n" : "", 12007 drv->allow_p2p_device ? "allow_p2p_device=1\n" : ""); 12008 if (res < 0 || res >= end - pos) 12009 return pos - buf; 12010 pos += res; 12011 12012 if (drv->has_capability) { 12013 res = os_snprintf(pos, end - pos, 12014 "capa.key_mgmt=0x%x\n" 12015 "capa.enc=0x%x\n" 12016 "capa.auth=0x%x\n" 12017 "capa.flags=0x%x\n" 12018 "capa.max_scan_ssids=%d\n" 12019 "capa.max_sched_scan_ssids=%d\n" 12020 "capa.sched_scan_supported=%d\n" 12021 "capa.max_match_sets=%d\n" 12022 "capa.max_remain_on_chan=%u\n" 12023 "capa.max_stations=%u\n" 12024 "capa.probe_resp_offloads=0x%x\n" 12025 "capa.max_acl_mac_addrs=%u\n" 12026 "capa.num_multichan_concurrent=%u\n", 12027 drv->capa.key_mgmt, 12028 drv->capa.enc, 12029 drv->capa.auth, 12030 drv->capa.flags, 12031 drv->capa.max_scan_ssids, 12032 drv->capa.max_sched_scan_ssids, 12033 drv->capa.sched_scan_supported, 12034 drv->capa.max_match_sets, 12035 drv->capa.max_remain_on_chan, 12036 drv->capa.max_stations, 12037 drv->capa.probe_resp_offloads, 12038 drv->capa.max_acl_mac_addrs, 12039 drv->capa.num_multichan_concurrent); 12040 if (res < 0 || res >= end - pos) 12041 return pos - buf; 12042 pos += res; 12043 } 12044 12045 return pos - buf; 12046} 12047 12048 12049static int set_beacon_data(struct nl_msg *msg, struct beacon_data *settings) 12050{ 12051 if (settings->head) 12052 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, 12053 settings->head_len, settings->head); 12054 12055 if (settings->tail) 12056 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, 12057 settings->tail_len, settings->tail); 12058 12059 if (settings->beacon_ies) 12060 NLA_PUT(msg, NL80211_ATTR_IE, 12061 settings->beacon_ies_len, settings->beacon_ies); 12062 12063 if (settings->proberesp_ies) 12064 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, 12065 settings->proberesp_ies_len, settings->proberesp_ies); 12066 12067 if (settings->assocresp_ies) 12068 NLA_PUT(msg, 12069 NL80211_ATTR_IE_ASSOC_RESP, 12070 settings->assocresp_ies_len, settings->assocresp_ies); 12071 12072 if (settings->probe_resp) 12073 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, 12074 settings->probe_resp_len, settings->probe_resp); 12075 12076 return 0; 12077 12078nla_put_failure: 12079 return -ENOBUFS; 12080} 12081 12082 12083static int nl80211_switch_channel(void *priv, struct csa_settings *settings) 12084{ 12085 struct nl_msg *msg; 12086 struct i802_bss *bss = priv; 12087 struct wpa_driver_nl80211_data *drv = bss->drv; 12088 struct nlattr *beacon_csa; 12089 int ret = -ENOBUFS; 12090 12091 wpa_printf(MSG_DEBUG, "nl80211: Channel switch request (cs_count=%u block_tx=%u freq=%d width=%d cf1=%d cf2=%d)", 12092 settings->cs_count, settings->block_tx, 12093 settings->freq_params.freq, settings->freq_params.bandwidth, 12094 settings->freq_params.center_freq1, 12095 settings->freq_params.center_freq2); 12096 12097 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_AP_CSA)) { 12098 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support channel switch command"); 12099 return -EOPNOTSUPP; 12100 } 12101 12102 if ((drv->nlmode != NL80211_IFTYPE_AP) && 12103 (drv->nlmode != NL80211_IFTYPE_P2P_GO)) 12104 return -EOPNOTSUPP; 12105 12106 /* check settings validity */ 12107 if (!settings->beacon_csa.tail || 12108 ((settings->beacon_csa.tail_len <= 12109 settings->counter_offset_beacon) || 12110 (settings->beacon_csa.tail[settings->counter_offset_beacon] != 12111 settings->cs_count))) 12112 return -EINVAL; 12113 12114 if (settings->beacon_csa.probe_resp && 12115 ((settings->beacon_csa.probe_resp_len <= 12116 settings->counter_offset_presp) || 12117 (settings->beacon_csa.probe_resp[settings->counter_offset_presp] != 12118 settings->cs_count))) 12119 return -EINVAL; 12120 12121 msg = nlmsg_alloc(); 12122 if (!msg) 12123 return -ENOMEM; 12124 12125 nl80211_cmd(drv, msg, 0, NL80211_CMD_CHANNEL_SWITCH); 12126 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 12127 NLA_PUT_U32(msg, NL80211_ATTR_CH_SWITCH_COUNT, settings->cs_count); 12128 ret = nl80211_put_freq_params(msg, &settings->freq_params); 12129 if (ret) 12130 goto error; 12131 12132 if (settings->block_tx) 12133 NLA_PUT_FLAG(msg, NL80211_ATTR_CH_SWITCH_BLOCK_TX); 12134 12135 /* beacon_after params */ 12136 ret = set_beacon_data(msg, &settings->beacon_after); 12137 if (ret) 12138 goto error; 12139 12140 /* beacon_csa params */ 12141 beacon_csa = nla_nest_start(msg, NL80211_ATTR_CSA_IES); 12142 if (!beacon_csa) 12143 goto nla_put_failure; 12144 12145 ret = set_beacon_data(msg, &settings->beacon_csa); 12146 if (ret) 12147 goto error; 12148 12149 NLA_PUT_U16(msg, NL80211_ATTR_CSA_C_OFF_BEACON, 12150 settings->counter_offset_beacon); 12151 12152 if (settings->beacon_csa.probe_resp) 12153 NLA_PUT_U16(msg, NL80211_ATTR_CSA_C_OFF_PRESP, 12154 settings->counter_offset_presp); 12155 12156 nla_nest_end(msg, beacon_csa); 12157 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 12158 if (ret) { 12159 wpa_printf(MSG_DEBUG, "nl80211: switch_channel failed err=%d (%s)", 12160 ret, strerror(-ret)); 12161 } 12162 return ret; 12163 12164nla_put_failure: 12165 ret = -ENOBUFS; 12166error: 12167 nlmsg_free(msg); 12168 wpa_printf(MSG_DEBUG, "nl80211: Could not build channel switch request"); 12169 return ret; 12170} 12171 12172 12173#ifdef CONFIG_TESTING_OPTIONS 12174static int cmd_reply_handler(struct nl_msg *msg, void *arg) 12175{ 12176 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 12177 struct wpabuf *buf = arg; 12178 12179 if (!buf) 12180 return NL_SKIP; 12181 12182 if ((size_t) genlmsg_attrlen(gnlh, 0) > wpabuf_tailroom(buf)) { 12183 wpa_printf(MSG_INFO, "nl80211: insufficient buffer space for reply"); 12184 return NL_SKIP; 12185 } 12186 12187 wpabuf_put_data(buf, genlmsg_attrdata(gnlh, 0), 12188 genlmsg_attrlen(gnlh, 0)); 12189 12190 return NL_SKIP; 12191} 12192#endif /* CONFIG_TESTING_OPTIONS */ 12193 12194 12195static int vendor_reply_handler(struct nl_msg *msg, void *arg) 12196{ 12197 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 12198 struct nlattr *nl_vendor_reply, *nl; 12199 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 12200 struct wpabuf *buf = arg; 12201 int rem; 12202 12203 if (!buf) 12204 return NL_SKIP; 12205 12206 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 12207 genlmsg_attrlen(gnlh, 0), NULL); 12208 nl_vendor_reply = tb[NL80211_ATTR_VENDOR_DATA]; 12209 12210 if (!nl_vendor_reply) 12211 return NL_SKIP; 12212 12213 if ((size_t) nla_len(nl_vendor_reply) > wpabuf_tailroom(buf)) { 12214 wpa_printf(MSG_INFO, "nl80211: Vendor command: insufficient buffer space for reply"); 12215 return NL_SKIP; 12216 } 12217 12218 nla_for_each_nested(nl, nl_vendor_reply, rem) { 12219 wpabuf_put_data(buf, nla_data(nl), nla_len(nl)); 12220 } 12221 12222 return NL_SKIP; 12223} 12224 12225 12226static int nl80211_vendor_cmd(void *priv, unsigned int vendor_id, 12227 unsigned int subcmd, const u8 *data, 12228 size_t data_len, struct wpabuf *buf) 12229{ 12230 struct i802_bss *bss = priv; 12231 struct wpa_driver_nl80211_data *drv = bss->drv; 12232 struct nl_msg *msg; 12233 int ret; 12234 12235 msg = nlmsg_alloc(); 12236 if (!msg) 12237 return -ENOMEM; 12238 12239#ifdef CONFIG_TESTING_OPTIONS 12240 if (vendor_id == 0xffffffff) { 12241 nl80211_cmd(drv, msg, 0, subcmd); 12242 if (nlmsg_append(msg, (void *) data, data_len, NLMSG_ALIGNTO) < 12243 0) 12244 goto nla_put_failure; 12245 ret = send_and_recv_msgs(drv, msg, cmd_reply_handler, buf); 12246 if (ret) 12247 wpa_printf(MSG_DEBUG, "nl80211: command failed err=%d", 12248 ret); 12249 return ret; 12250 } 12251#endif /* CONFIG_TESTING_OPTIONS */ 12252 12253 nl80211_cmd(drv, msg, 0, NL80211_CMD_VENDOR); 12254 if (nl80211_set_iface_id(msg, bss) < 0) 12255 goto nla_put_failure; 12256 NLA_PUT_U32(msg, NL80211_ATTR_VENDOR_ID, vendor_id); 12257 NLA_PUT_U32(msg, NL80211_ATTR_VENDOR_SUBCMD, subcmd); 12258 if (data) 12259 NLA_PUT(msg, NL80211_ATTR_VENDOR_DATA, data_len, data); 12260 12261 ret = send_and_recv_msgs(drv, msg, vendor_reply_handler, buf); 12262 if (ret) 12263 wpa_printf(MSG_DEBUG, "nl80211: vendor command failed err=%d", 12264 ret); 12265 return ret; 12266 12267nla_put_failure: 12268 nlmsg_free(msg); 12269 return -ENOBUFS; 12270} 12271 12272 12273static int nl80211_set_qos_map(void *priv, const u8 *qos_map_set, 12274 u8 qos_map_set_len) 12275{ 12276 struct i802_bss *bss = priv; 12277 struct wpa_driver_nl80211_data *drv = bss->drv; 12278 struct nl_msg *msg; 12279 int ret; 12280 12281 msg = nlmsg_alloc(); 12282 if (!msg) 12283 return -ENOMEM; 12284 12285 wpa_hexdump(MSG_DEBUG, "nl80211: Setting QoS Map", 12286 qos_map_set, qos_map_set_len); 12287 12288 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_QOS_MAP); 12289 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 12290 NLA_PUT(msg, NL80211_ATTR_QOS_MAP, qos_map_set_len, qos_map_set); 12291 12292 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 12293 if (ret) 12294 wpa_printf(MSG_DEBUG, "nl80211: Setting QoS Map failed"); 12295 12296 return ret; 12297 12298nla_put_failure: 12299 nlmsg_free(msg); 12300 return -ENOBUFS; 12301} 12302 12303 12304static int nl80211_set_wowlan(void *priv, 12305 const struct wowlan_triggers *triggers) 12306{ 12307 struct i802_bss *bss = priv; 12308 struct wpa_driver_nl80211_data *drv = bss->drv; 12309 struct nl_msg *msg; 12310 struct nlattr *wowlan_triggers; 12311 int ret; 12312 12313 msg = nlmsg_alloc(); 12314 if (!msg) 12315 return -ENOMEM; 12316 12317 wpa_printf(MSG_DEBUG, "nl80211: Setting wowlan"); 12318 12319 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WOWLAN); 12320 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 12321 12322 wowlan_triggers = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS); 12323 if (!wowlan_triggers) 12324 goto nla_put_failure; 12325 12326 if (triggers->any) 12327 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY); 12328 if (triggers->disconnect) 12329 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT); 12330 if (triggers->magic_pkt) 12331 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT); 12332 if (triggers->gtk_rekey_failure) 12333 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE); 12334 if (triggers->eap_identity_req) 12335 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST); 12336 if (triggers->four_way_handshake) 12337 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE); 12338 if (triggers->rfkill_release) 12339 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE); 12340 12341 nla_nest_end(msg, wowlan_triggers); 12342 12343 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 12344 if (ret) 12345 wpa_printf(MSG_DEBUG, "nl80211: Setting wowlan failed"); 12346 12347 return ret; 12348 12349nla_put_failure: 12350 nlmsg_free(msg); 12351 return -ENOBUFS; 12352} 12353 12354 12355const struct wpa_driver_ops wpa_driver_nl80211_ops = { 12356 .name = "nl80211", 12357 .desc = "Linux nl80211/cfg80211", 12358 .get_bssid = wpa_driver_nl80211_get_bssid, 12359 .get_ssid = wpa_driver_nl80211_get_ssid, 12360 .set_key = driver_nl80211_set_key, 12361 .scan2 = driver_nl80211_scan2, 12362 .sched_scan = wpa_driver_nl80211_sched_scan, 12363 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan, 12364 .get_scan_results2 = wpa_driver_nl80211_get_scan_results, 12365 .deauthenticate = driver_nl80211_deauthenticate, 12366 .authenticate = driver_nl80211_authenticate, 12367 .associate = wpa_driver_nl80211_associate, 12368 .global_init = nl80211_global_init, 12369 .global_deinit = nl80211_global_deinit, 12370 .init2 = wpa_driver_nl80211_init, 12371 .deinit = driver_nl80211_deinit, 12372 .get_capa = wpa_driver_nl80211_get_capa, 12373 .set_operstate = wpa_driver_nl80211_set_operstate, 12374 .set_supp_port = wpa_driver_nl80211_set_supp_port, 12375 .set_country = wpa_driver_nl80211_set_country, 12376 .get_country = wpa_driver_nl80211_get_country, 12377 .set_ap = wpa_driver_nl80211_set_ap, 12378 .set_acl = wpa_driver_nl80211_set_acl, 12379 .if_add = wpa_driver_nl80211_if_add, 12380 .if_remove = driver_nl80211_if_remove, 12381 .send_mlme = driver_nl80211_send_mlme, 12382 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data, 12383 .sta_add = wpa_driver_nl80211_sta_add, 12384 .sta_remove = driver_nl80211_sta_remove, 12385 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol, 12386 .sta_set_flags = wpa_driver_nl80211_sta_set_flags, 12387 .hapd_init = i802_init, 12388 .hapd_deinit = i802_deinit, 12389 .set_wds_sta = i802_set_wds_sta, 12390 .get_seqnum = i802_get_seqnum, 12391 .flush = i802_flush, 12392 .get_inact_sec = i802_get_inact_sec, 12393 .sta_clear_stats = i802_sta_clear_stats, 12394 .set_rts = i802_set_rts, 12395 .set_frag = i802_set_frag, 12396 .set_tx_queue_params = i802_set_tx_queue_params, 12397 .set_sta_vlan = driver_nl80211_set_sta_vlan, 12398 .sta_deauth = i802_sta_deauth, 12399 .sta_disassoc = i802_sta_disassoc, 12400 .read_sta_data = driver_nl80211_read_sta_data, 12401 .set_freq = i802_set_freq, 12402 .send_action = driver_nl80211_send_action, 12403 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait, 12404 .remain_on_channel = wpa_driver_nl80211_remain_on_channel, 12405 .cancel_remain_on_channel = 12406 wpa_driver_nl80211_cancel_remain_on_channel, 12407 .probe_req_report = driver_nl80211_probe_req_report, 12408 .deinit_ap = wpa_driver_nl80211_deinit_ap, 12409 .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli, 12410 .resume = wpa_driver_nl80211_resume, 12411 .send_ft_action = nl80211_send_ft_action, 12412 .signal_monitor = nl80211_signal_monitor, 12413 .signal_poll = nl80211_signal_poll, 12414 .send_frame = nl80211_send_frame, 12415 .shared_freq = wpa_driver_nl80211_shared_freq, 12416 .set_param = nl80211_set_param, 12417 .get_radio_name = nl80211_get_radio_name, 12418 .add_pmkid = nl80211_add_pmkid, 12419 .remove_pmkid = nl80211_remove_pmkid, 12420 .flush_pmkid = nl80211_flush_pmkid, 12421 .set_rekey_info = nl80211_set_rekey_info, 12422 .poll_client = nl80211_poll_client, 12423 .set_p2p_powersave = nl80211_set_p2p_powersave, 12424 .start_dfs_cac = nl80211_start_radar_detection, 12425 .stop_ap = wpa_driver_nl80211_stop_ap, 12426#ifdef CONFIG_TDLS 12427 .send_tdls_mgmt = nl80211_send_tdls_mgmt, 12428 .tdls_oper = nl80211_tdls_oper, 12429#endif /* CONFIG_TDLS */ 12430 .update_ft_ies = wpa_driver_nl80211_update_ft_ies, 12431 .get_mac_addr = wpa_driver_nl80211_get_macaddr, 12432 .get_survey = wpa_driver_nl80211_get_survey, 12433 .status = wpa_driver_nl80211_status, 12434 .switch_channel = nl80211_switch_channel, 12435#ifdef ANDROID_P2P 12436 .set_noa = wpa_driver_set_p2p_noa, 12437 .get_noa = wpa_driver_get_p2p_noa, 12438 .set_ap_wps_ie = wpa_driver_set_ap_wps_p2p_ie, 12439#endif /* ANDROID_P2P */ 12440#ifdef ANDROID 12441 .driver_cmd = wpa_driver_nl80211_driver_cmd, 12442#endif /* ANDROID */ 12443 .vendor_cmd = nl80211_vendor_cmd, 12444 .set_qos_map = nl80211_set_qos_map, 12445 .set_wowlan = nl80211_set_wowlan, 12446}; 12447