driver_nl80211.c revision 76cd2cc44b62e858f1897ce58f4ce7d0174e8839
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; 235 236 u8 addr[ETH_ALEN]; 237 238 int freq; 239 int bandwidth; 240 int if_dynamic; 241 242 void *ctx; 243 struct nl_handle *nl_preq, *nl_mgmt; 244 struct nl_cb *nl_cb; 245 246 struct nl80211_wiphy_data *wiphy_data; 247 struct dl_list wiphy_list; 248}; 249 250struct wpa_driver_nl80211_data { 251 struct nl80211_global *global; 252 struct dl_list list; 253 struct dl_list wiphy_list; 254 char phyname[32]; 255 void *ctx; 256 int ifindex; 257 int if_removed; 258 int if_disabled; 259 int ignore_if_down_event; 260 struct rfkill_data *rfkill; 261 struct wpa_driver_capa capa; 262 u8 *extended_capa, *extended_capa_mask; 263 unsigned int extended_capa_len; 264 int has_capability; 265 266 int operstate; 267 268 int scan_complete_events; 269 enum scan_states { 270 NO_SCAN, SCAN_REQUESTED, SCAN_STARTED, SCAN_COMPLETED, 271 SCAN_ABORTED, SCHED_SCAN_STARTED, SCHED_SCAN_STOPPED, 272 SCHED_SCAN_RESULTS 273 } scan_state; 274 275 struct nl_cb *nl_cb; 276 277 u8 auth_bssid[ETH_ALEN]; 278 u8 auth_attempt_bssid[ETH_ALEN]; 279 u8 bssid[ETH_ALEN]; 280 u8 prev_bssid[ETH_ALEN]; 281 int associated; 282 u8 ssid[32]; 283 size_t ssid_len; 284 enum nl80211_iftype nlmode; 285 enum nl80211_iftype ap_scan_as_station; 286 unsigned int assoc_freq; 287 288 int monitor_sock; 289 int monitor_ifidx; 290 int monitor_refcount; 291 292 unsigned int disabled_11b_rates:1; 293 unsigned int pending_remain_on_chan:1; 294 unsigned int in_interface_list:1; 295 unsigned int device_ap_sme:1; 296 unsigned int poll_command_supported:1; 297 unsigned int data_tx_status:1; 298 unsigned int scan_for_auth:1; 299 unsigned int retry_auth:1; 300 unsigned int use_monitor:1; 301 unsigned int ignore_next_local_disconnect:1; 302 unsigned int ignore_next_local_deauth:1; 303 unsigned int allow_p2p_device:1; 304 unsigned int hostapd:1; 305 unsigned int start_mode_ap:1; 306 unsigned int start_iface_up:1; 307 unsigned int test_use_roc_tx:1; 308 unsigned int ignore_deauth_event:1; 309 unsigned int dfs_vendor_cmd_avail:1; 310 311 u64 remain_on_chan_cookie; 312 u64 send_action_cookie; 313 314 unsigned int last_mgmt_freq; 315 316 struct wpa_driver_scan_filter *filter_ssids; 317 size_t num_filter_ssids; 318 319 struct i802_bss *first_bss; 320 321 int eapol_tx_sock; 322 323 int eapol_sock; /* socket for EAPOL frames */ 324 325 int default_if_indices[16]; 326 int *if_indices; 327 int num_if_indices; 328 329 /* From failed authentication command */ 330 int auth_freq; 331 u8 auth_bssid_[ETH_ALEN]; 332 u8 auth_ssid[32]; 333 size_t auth_ssid_len; 334 int auth_alg; 335 u8 *auth_ie; 336 size_t auth_ie_len; 337 u8 auth_wep_key[4][16]; 338 size_t auth_wep_key_len[4]; 339 int auth_wep_tx_keyidx; 340 int auth_local_state_change; 341 int auth_p2p; 342}; 343 344 345static void wpa_driver_nl80211_deinit(struct i802_bss *bss); 346static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, 347 void *timeout_ctx); 348static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 349 enum nl80211_iftype nlmode); 350static int 351wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv, 352 const u8 *set_addr, int first); 353static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 354 const u8 *addr, int cmd, u16 reason_code, 355 int local_state_change); 356static void nl80211_remove_monitor_interface( 357 struct wpa_driver_nl80211_data *drv); 358static int nl80211_send_frame_cmd(struct i802_bss *bss, 359 unsigned int freq, unsigned int wait, 360 const u8 *buf, size_t buf_len, u64 *cookie, 361 int no_cck, int no_ack, int offchanok); 362static int nl80211_register_frame(struct i802_bss *bss, 363 struct nl_handle *hl_handle, 364 u16 type, const u8 *match, size_t match_len); 365static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, 366 int report); 367#ifdef ANDROID 368static int android_pno_start(struct i802_bss *bss, 369 struct wpa_driver_scan_params *params); 370static int android_pno_stop(struct i802_bss *bss); 371extern int wpa_driver_nl80211_driver_cmd(void *priv, char *cmd, char *buf, 372 size_t buf_len); 373#endif /* ANDROID */ 374#ifdef ANDROID_P2P 375#ifdef ANDROID_P2P_STUB 376int wpa_driver_set_p2p_noa(void *priv, u8 count, int start, int duration) { 377 return 0; 378} 379int wpa_driver_get_p2p_noa(void *priv, u8 *buf, size_t len) { 380 return 0; 381} 382int wpa_driver_set_p2p_ps(void *priv, int legacy_ps, int opp_ps, int ctwindow) { 383 return -1; 384} 385int wpa_driver_set_ap_wps_p2p_ie(void *priv, const struct wpabuf *beacon, 386 const struct wpabuf *proberesp, 387 const struct wpabuf *assocresp) { 388 return 0; 389} 390#else /* ANDROID_P2P_STUB */ 391int wpa_driver_set_p2p_noa(void *priv, u8 count, int start, int duration); 392int wpa_driver_get_p2p_noa(void *priv, u8 *buf, size_t len); 393int wpa_driver_set_p2p_ps(void *priv, int legacy_ps, int opp_ps, int ctwindow); 394int wpa_driver_set_ap_wps_p2p_ie(void *priv, const struct wpabuf *beacon, 395 const struct wpabuf *proberesp, 396 const struct wpabuf *assocresp); 397#endif /* ANDROID_P2P_STUB */ 398#endif /* ANDROID_P2P */ 399 400static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 401static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 402static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 403static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 404 enum wpa_driver_if_type type, 405 const char *ifname); 406 407static int nl80211_set_channel(struct i802_bss *bss, 408 struct hostapd_freq_params *freq, int set_chan); 409static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 410 int ifindex, int disabled); 411 412static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv); 413static int wpa_driver_nl80211_authenticate_retry( 414 struct wpa_driver_nl80211_data *drv); 415 416static int i802_set_iface_flags(struct i802_bss *bss, int up); 417 418 419static const char * nl80211_command_to_string(enum nl80211_commands cmd) 420{ 421#define C2S(x) case x: return #x; 422 switch (cmd) { 423 C2S(NL80211_CMD_UNSPEC) 424 C2S(NL80211_CMD_GET_WIPHY) 425 C2S(NL80211_CMD_SET_WIPHY) 426 C2S(NL80211_CMD_NEW_WIPHY) 427 C2S(NL80211_CMD_DEL_WIPHY) 428 C2S(NL80211_CMD_GET_INTERFACE) 429 C2S(NL80211_CMD_SET_INTERFACE) 430 C2S(NL80211_CMD_NEW_INTERFACE) 431 C2S(NL80211_CMD_DEL_INTERFACE) 432 C2S(NL80211_CMD_GET_KEY) 433 C2S(NL80211_CMD_SET_KEY) 434 C2S(NL80211_CMD_NEW_KEY) 435 C2S(NL80211_CMD_DEL_KEY) 436 C2S(NL80211_CMD_GET_BEACON) 437 C2S(NL80211_CMD_SET_BEACON) 438 C2S(NL80211_CMD_START_AP) 439 C2S(NL80211_CMD_STOP_AP) 440 C2S(NL80211_CMD_GET_STATION) 441 C2S(NL80211_CMD_SET_STATION) 442 C2S(NL80211_CMD_NEW_STATION) 443 C2S(NL80211_CMD_DEL_STATION) 444 C2S(NL80211_CMD_GET_MPATH) 445 C2S(NL80211_CMD_SET_MPATH) 446 C2S(NL80211_CMD_NEW_MPATH) 447 C2S(NL80211_CMD_DEL_MPATH) 448 C2S(NL80211_CMD_SET_BSS) 449 C2S(NL80211_CMD_SET_REG) 450 C2S(NL80211_CMD_REQ_SET_REG) 451 C2S(NL80211_CMD_GET_MESH_CONFIG) 452 C2S(NL80211_CMD_SET_MESH_CONFIG) 453 C2S(NL80211_CMD_SET_MGMT_EXTRA_IE) 454 C2S(NL80211_CMD_GET_REG) 455 C2S(NL80211_CMD_GET_SCAN) 456 C2S(NL80211_CMD_TRIGGER_SCAN) 457 C2S(NL80211_CMD_NEW_SCAN_RESULTS) 458 C2S(NL80211_CMD_SCAN_ABORTED) 459 C2S(NL80211_CMD_REG_CHANGE) 460 C2S(NL80211_CMD_AUTHENTICATE) 461 C2S(NL80211_CMD_ASSOCIATE) 462 C2S(NL80211_CMD_DEAUTHENTICATE) 463 C2S(NL80211_CMD_DISASSOCIATE) 464 C2S(NL80211_CMD_MICHAEL_MIC_FAILURE) 465 C2S(NL80211_CMD_REG_BEACON_HINT) 466 C2S(NL80211_CMD_JOIN_IBSS) 467 C2S(NL80211_CMD_LEAVE_IBSS) 468 C2S(NL80211_CMD_TESTMODE) 469 C2S(NL80211_CMD_CONNECT) 470 C2S(NL80211_CMD_ROAM) 471 C2S(NL80211_CMD_DISCONNECT) 472 C2S(NL80211_CMD_SET_WIPHY_NETNS) 473 C2S(NL80211_CMD_GET_SURVEY) 474 C2S(NL80211_CMD_NEW_SURVEY_RESULTS) 475 C2S(NL80211_CMD_SET_PMKSA) 476 C2S(NL80211_CMD_DEL_PMKSA) 477 C2S(NL80211_CMD_FLUSH_PMKSA) 478 C2S(NL80211_CMD_REMAIN_ON_CHANNEL) 479 C2S(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL) 480 C2S(NL80211_CMD_SET_TX_BITRATE_MASK) 481 C2S(NL80211_CMD_REGISTER_FRAME) 482 C2S(NL80211_CMD_FRAME) 483 C2S(NL80211_CMD_FRAME_TX_STATUS) 484 C2S(NL80211_CMD_SET_POWER_SAVE) 485 C2S(NL80211_CMD_GET_POWER_SAVE) 486 C2S(NL80211_CMD_SET_CQM) 487 C2S(NL80211_CMD_NOTIFY_CQM) 488 C2S(NL80211_CMD_SET_CHANNEL) 489 C2S(NL80211_CMD_SET_WDS_PEER) 490 C2S(NL80211_CMD_FRAME_WAIT_CANCEL) 491 C2S(NL80211_CMD_JOIN_MESH) 492 C2S(NL80211_CMD_LEAVE_MESH) 493 C2S(NL80211_CMD_UNPROT_DEAUTHENTICATE) 494 C2S(NL80211_CMD_UNPROT_DISASSOCIATE) 495 C2S(NL80211_CMD_NEW_PEER_CANDIDATE) 496 C2S(NL80211_CMD_GET_WOWLAN) 497 C2S(NL80211_CMD_SET_WOWLAN) 498 C2S(NL80211_CMD_START_SCHED_SCAN) 499 C2S(NL80211_CMD_STOP_SCHED_SCAN) 500 C2S(NL80211_CMD_SCHED_SCAN_RESULTS) 501 C2S(NL80211_CMD_SCHED_SCAN_STOPPED) 502 C2S(NL80211_CMD_SET_REKEY_OFFLOAD) 503 C2S(NL80211_CMD_PMKSA_CANDIDATE) 504 C2S(NL80211_CMD_TDLS_OPER) 505 C2S(NL80211_CMD_TDLS_MGMT) 506 C2S(NL80211_CMD_UNEXPECTED_FRAME) 507 C2S(NL80211_CMD_PROBE_CLIENT) 508 C2S(NL80211_CMD_REGISTER_BEACONS) 509 C2S(NL80211_CMD_UNEXPECTED_4ADDR_FRAME) 510 C2S(NL80211_CMD_SET_NOACK_MAP) 511 C2S(NL80211_CMD_CH_SWITCH_NOTIFY) 512 C2S(NL80211_CMD_START_P2P_DEVICE) 513 C2S(NL80211_CMD_STOP_P2P_DEVICE) 514 C2S(NL80211_CMD_CONN_FAILED) 515 C2S(NL80211_CMD_SET_MCAST_RATE) 516 C2S(NL80211_CMD_SET_MAC_ACL) 517 C2S(NL80211_CMD_RADAR_DETECT) 518 C2S(NL80211_CMD_GET_PROTOCOL_FEATURES) 519 C2S(NL80211_CMD_UPDATE_FT_IES) 520 C2S(NL80211_CMD_FT_EVENT) 521 C2S(NL80211_CMD_CRIT_PROTOCOL_START) 522 C2S(NL80211_CMD_CRIT_PROTOCOL_STOP) 523 C2S(NL80211_CMD_GET_COALESCE) 524 C2S(NL80211_CMD_SET_COALESCE) 525 C2S(NL80211_CMD_CHANNEL_SWITCH) 526 C2S(NL80211_CMD_VENDOR) 527 C2S(NL80211_CMD_SET_QOS_MAP) 528 default: 529 return "NL80211_CMD_UNKNOWN"; 530 } 531#undef C2S 532} 533 534 535/* Converts nl80211_chan_width to a common format */ 536static enum chan_width convert2width(int width) 537{ 538 switch (width) { 539 case NL80211_CHAN_WIDTH_20_NOHT: 540 return CHAN_WIDTH_20_NOHT; 541 case NL80211_CHAN_WIDTH_20: 542 return CHAN_WIDTH_20; 543 case NL80211_CHAN_WIDTH_40: 544 return CHAN_WIDTH_40; 545 case NL80211_CHAN_WIDTH_80: 546 return CHAN_WIDTH_80; 547 case NL80211_CHAN_WIDTH_80P80: 548 return CHAN_WIDTH_80P80; 549 case NL80211_CHAN_WIDTH_160: 550 return CHAN_WIDTH_160; 551 } 552 return CHAN_WIDTH_UNKNOWN; 553} 554 555 556static int is_ap_interface(enum nl80211_iftype nlmode) 557{ 558 return nlmode == NL80211_IFTYPE_AP || 559 nlmode == NL80211_IFTYPE_P2P_GO; 560} 561 562 563static int is_sta_interface(enum nl80211_iftype nlmode) 564{ 565 return nlmode == NL80211_IFTYPE_STATION || 566 nlmode == NL80211_IFTYPE_P2P_CLIENT; 567} 568 569 570static int is_p2p_net_interface(enum nl80211_iftype nlmode) 571{ 572 return nlmode == NL80211_IFTYPE_P2P_CLIENT || 573 nlmode == NL80211_IFTYPE_P2P_GO; 574} 575 576 577static void nl80211_mark_disconnected(struct wpa_driver_nl80211_data *drv) 578{ 579 if (drv->associated) 580 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); 581 drv->associated = 0; 582 os_memset(drv->bssid, 0, ETH_ALEN); 583} 584 585 586struct nl80211_bss_info_arg { 587 struct wpa_driver_nl80211_data *drv; 588 struct wpa_scan_results *res; 589 unsigned int assoc_freq; 590 unsigned int ibss_freq; 591 u8 assoc_bssid[ETH_ALEN]; 592}; 593 594static int bss_info_handler(struct nl_msg *msg, void *arg); 595 596 597/* nl80211 code */ 598static int ack_handler(struct nl_msg *msg, void *arg) 599{ 600 int *err = arg; 601 *err = 0; 602 return NL_STOP; 603} 604 605static int finish_handler(struct nl_msg *msg, void *arg) 606{ 607 int *ret = arg; 608 *ret = 0; 609 return NL_SKIP; 610} 611 612static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err, 613 void *arg) 614{ 615 int *ret = arg; 616 *ret = err->error; 617 return NL_SKIP; 618} 619 620 621static int no_seq_check(struct nl_msg *msg, void *arg) 622{ 623 return NL_OK; 624} 625 626 627static int send_and_recv(struct nl80211_global *global, 628 struct nl_handle *nl_handle, struct nl_msg *msg, 629 int (*valid_handler)(struct nl_msg *, void *), 630 void *valid_data) 631{ 632 struct nl_cb *cb; 633 int err = -ENOMEM; 634 635 cb = nl_cb_clone(global->nl_cb); 636 if (!cb) 637 goto out; 638 639 err = nl_send_auto_complete(nl_handle, msg); 640 if (err < 0) 641 goto out; 642 643 err = 1; 644 645 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err); 646 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err); 647 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err); 648 649 if (valid_handler) 650 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, 651 valid_handler, valid_data); 652 653 while (err > 0) { 654 int res = nl_recvmsgs(nl_handle, cb); 655 if (res) { 656 wpa_printf(MSG_INFO, 657 "nl80211: %s->nl_recvmsgs failed: %d", 658 __func__, res); 659 } 660 } 661 out: 662 nl_cb_put(cb); 663 nlmsg_free(msg); 664 return err; 665} 666 667 668static int send_and_recv_msgs_global(struct nl80211_global *global, 669 struct nl_msg *msg, 670 int (*valid_handler)(struct nl_msg *, void *), 671 void *valid_data) 672{ 673 return send_and_recv(global, global->nl, msg, valid_handler, 674 valid_data); 675} 676 677 678static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv, 679 struct nl_msg *msg, 680 int (*valid_handler)(struct nl_msg *, void *), 681 void *valid_data) 682{ 683 return send_and_recv(drv->global, drv->global->nl, msg, 684 valid_handler, valid_data); 685} 686 687 688struct family_data { 689 const char *group; 690 int id; 691}; 692 693 694static int nl80211_set_iface_id(struct nl_msg *msg, struct i802_bss *bss) 695{ 696 if (bss->wdev_id_set) 697 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 698 else 699 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 700 return 0; 701 702nla_put_failure: 703 return -1; 704} 705 706 707static int family_handler(struct nl_msg *msg, void *arg) 708{ 709 struct family_data *res = arg; 710 struct nlattr *tb[CTRL_ATTR_MAX + 1]; 711 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 712 struct nlattr *mcgrp; 713 int i; 714 715 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 716 genlmsg_attrlen(gnlh, 0), NULL); 717 if (!tb[CTRL_ATTR_MCAST_GROUPS]) 718 return NL_SKIP; 719 720 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) { 721 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1]; 722 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp), 723 nla_len(mcgrp), NULL); 724 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] || 725 !tb2[CTRL_ATTR_MCAST_GRP_ID] || 726 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]), 727 res->group, 728 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0) 729 continue; 730 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]); 731 break; 732 }; 733 734 return NL_SKIP; 735} 736 737 738static int nl_get_multicast_id(struct nl80211_global *global, 739 const char *family, const char *group) 740{ 741 struct nl_msg *msg; 742 int ret = -1; 743 struct family_data res = { group, -ENOENT }; 744 745 msg = nlmsg_alloc(); 746 if (!msg) 747 return -ENOMEM; 748 genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"), 749 0, 0, CTRL_CMD_GETFAMILY, 0); 750 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family); 751 752 ret = send_and_recv_msgs_global(global, msg, family_handler, &res); 753 msg = NULL; 754 if (ret == 0) 755 ret = res.id; 756 757nla_put_failure: 758 nlmsg_free(msg); 759 return ret; 760} 761 762 763static void * nl80211_cmd(struct wpa_driver_nl80211_data *drv, 764 struct nl_msg *msg, int flags, uint8_t cmd) 765{ 766 return genlmsg_put(msg, 0, 0, drv->global->nl80211_id, 767 0, flags, cmd, 0); 768} 769 770 771struct wiphy_idx_data { 772 int wiphy_idx; 773 enum nl80211_iftype nlmode; 774 u8 *macaddr; 775}; 776 777 778static int netdev_info_handler(struct nl_msg *msg, void *arg) 779{ 780 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 781 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 782 struct wiphy_idx_data *info = arg; 783 784 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 785 genlmsg_attrlen(gnlh, 0), NULL); 786 787 if (tb[NL80211_ATTR_WIPHY]) 788 info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]); 789 790 if (tb[NL80211_ATTR_IFTYPE]) 791 info->nlmode = nla_get_u32(tb[NL80211_ATTR_IFTYPE]); 792 793 if (tb[NL80211_ATTR_MAC] && info->macaddr) 794 os_memcpy(info->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 795 ETH_ALEN); 796 797 return NL_SKIP; 798} 799 800 801static int nl80211_get_wiphy_index(struct i802_bss *bss) 802{ 803 struct nl_msg *msg; 804 struct wiphy_idx_data data = { 805 .wiphy_idx = -1, 806 .macaddr = NULL, 807 }; 808 809 msg = nlmsg_alloc(); 810 if (!msg) 811 return NL80211_IFTYPE_UNSPECIFIED; 812 813 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 814 815 if (nl80211_set_iface_id(msg, bss) < 0) 816 goto nla_put_failure; 817 818 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) 819 return data.wiphy_idx; 820 msg = NULL; 821nla_put_failure: 822 nlmsg_free(msg); 823 return -1; 824} 825 826 827static enum nl80211_iftype nl80211_get_ifmode(struct i802_bss *bss) 828{ 829 struct nl_msg *msg; 830 struct wiphy_idx_data data = { 831 .nlmode = NL80211_IFTYPE_UNSPECIFIED, 832 .macaddr = NULL, 833 }; 834 835 msg = nlmsg_alloc(); 836 if (!msg) 837 return -1; 838 839 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 840 841 if (nl80211_set_iface_id(msg, bss) < 0) 842 goto nla_put_failure; 843 844 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) 845 return data.nlmode; 846 msg = NULL; 847nla_put_failure: 848 nlmsg_free(msg); 849 return NL80211_IFTYPE_UNSPECIFIED; 850} 851 852 853static int nl80211_get_macaddr(struct i802_bss *bss) 854{ 855 struct nl_msg *msg; 856 struct wiphy_idx_data data = { 857 .macaddr = bss->addr, 858 }; 859 860 msg = nlmsg_alloc(); 861 if (!msg) 862 return NL80211_IFTYPE_UNSPECIFIED; 863 864 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 865 if (nl80211_set_iface_id(msg, bss) < 0) 866 goto nla_put_failure; 867 868 return send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data); 869 870nla_put_failure: 871 nlmsg_free(msg); 872 return NL80211_IFTYPE_UNSPECIFIED; 873} 874 875 876static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv, 877 struct nl80211_wiphy_data *w) 878{ 879 struct nl_msg *msg; 880 int ret = -1; 881 882 msg = nlmsg_alloc(); 883 if (!msg) 884 return -1; 885 886 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS); 887 888 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx); 889 890 ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL); 891 msg = NULL; 892 if (ret) { 893 wpa_printf(MSG_DEBUG, "nl80211: Register beacons command " 894 "failed: ret=%d (%s)", 895 ret, strerror(-ret)); 896 goto nla_put_failure; 897 } 898 ret = 0; 899nla_put_failure: 900 nlmsg_free(msg); 901 return ret; 902} 903 904 905static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle) 906{ 907 struct nl80211_wiphy_data *w = eloop_ctx; 908 int res; 909 910 wpa_printf(MSG_EXCESSIVE, "nl80211: Beacon event message available"); 911 912 res = nl_recvmsgs(handle, w->nl_cb); 913 if (res) { 914 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d", 915 __func__, res); 916 } 917} 918 919 920static int process_beacon_event(struct nl_msg *msg, void *arg) 921{ 922 struct nl80211_wiphy_data *w = arg; 923 struct wpa_driver_nl80211_data *drv; 924 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 925 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 926 union wpa_event_data event; 927 928 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 929 genlmsg_attrlen(gnlh, 0), NULL); 930 931 if (gnlh->cmd != NL80211_CMD_FRAME) { 932 wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)", 933 gnlh->cmd); 934 return NL_SKIP; 935 } 936 937 if (!tb[NL80211_ATTR_FRAME]) 938 return NL_SKIP; 939 940 dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data, 941 wiphy_list) { 942 os_memset(&event, 0, sizeof(event)); 943 event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]); 944 event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]); 945 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 946 } 947 948 return NL_SKIP; 949} 950 951 952static struct nl80211_wiphy_data * 953nl80211_get_wiphy_data_ap(struct i802_bss *bss) 954{ 955 static DEFINE_DL_LIST(nl80211_wiphys); 956 struct nl80211_wiphy_data *w; 957 int wiphy_idx, found = 0; 958 struct i802_bss *tmp_bss; 959 960 if (bss->wiphy_data != NULL) 961 return bss->wiphy_data; 962 963 wiphy_idx = nl80211_get_wiphy_index(bss); 964 965 dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) { 966 if (w->wiphy_idx == wiphy_idx) 967 goto add; 968 } 969 970 /* alloc new one */ 971 w = os_zalloc(sizeof(*w)); 972 if (w == NULL) 973 return NULL; 974 w->wiphy_idx = wiphy_idx; 975 dl_list_init(&w->bsss); 976 dl_list_init(&w->drvs); 977 978 w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 979 if (!w->nl_cb) { 980 os_free(w); 981 return NULL; 982 } 983 nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL); 984 nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_beacon_event, 985 w); 986 987 w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb, 988 "wiphy beacons"); 989 if (w->nl_beacons == NULL) { 990 os_free(w); 991 return NULL; 992 } 993 994 if (nl80211_register_beacons(bss->drv, w)) { 995 nl_destroy_handles(&w->nl_beacons); 996 os_free(w); 997 return NULL; 998 } 999 1000 nl80211_register_eloop_read(&w->nl_beacons, nl80211_recv_beacons, w); 1001 1002 dl_list_add(&nl80211_wiphys, &w->list); 1003 1004add: 1005 /* drv entry for this bss already there? */ 1006 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { 1007 if (tmp_bss->drv == bss->drv) { 1008 found = 1; 1009 break; 1010 } 1011 } 1012 /* if not add it */ 1013 if (!found) 1014 dl_list_add(&w->drvs, &bss->drv->wiphy_list); 1015 1016 dl_list_add(&w->bsss, &bss->wiphy_list); 1017 bss->wiphy_data = w; 1018 return w; 1019} 1020 1021 1022static void nl80211_put_wiphy_data_ap(struct i802_bss *bss) 1023{ 1024 struct nl80211_wiphy_data *w = bss->wiphy_data; 1025 struct i802_bss *tmp_bss; 1026 int found = 0; 1027 1028 if (w == NULL) 1029 return; 1030 bss->wiphy_data = NULL; 1031 dl_list_del(&bss->wiphy_list); 1032 1033 /* still any for this drv present? */ 1034 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { 1035 if (tmp_bss->drv == bss->drv) { 1036 found = 1; 1037 break; 1038 } 1039 } 1040 /* if not remove it */ 1041 if (!found) 1042 dl_list_del(&bss->drv->wiphy_list); 1043 1044 if (!dl_list_empty(&w->bsss)) 1045 return; 1046 1047 nl80211_destroy_eloop_handle(&w->nl_beacons); 1048 1049 nl_cb_put(w->nl_cb); 1050 dl_list_del(&w->list); 1051 os_free(w); 1052} 1053 1054 1055static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid) 1056{ 1057 struct i802_bss *bss = priv; 1058 struct wpa_driver_nl80211_data *drv = bss->drv; 1059 if (!drv->associated) 1060 return -1; 1061 os_memcpy(bssid, drv->bssid, ETH_ALEN); 1062 return 0; 1063} 1064 1065 1066static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid) 1067{ 1068 struct i802_bss *bss = priv; 1069 struct wpa_driver_nl80211_data *drv = bss->drv; 1070 if (!drv->associated) 1071 return -1; 1072 os_memcpy(ssid, drv->ssid, drv->ssid_len); 1073 return drv->ssid_len; 1074} 1075 1076 1077static void wpa_driver_nl80211_event_newlink( 1078 struct wpa_driver_nl80211_data *drv, char *ifname) 1079{ 1080 union wpa_event_data event; 1081 1082 if (os_strcmp(drv->first_bss->ifname, ifname) == 0) { 1083 if (if_nametoindex(drv->first_bss->ifname) == 0) { 1084 wpa_printf(MSG_DEBUG, "nl80211: Interface %s does not exist - ignore RTM_NEWLINK", 1085 drv->first_bss->ifname); 1086 return; 1087 } 1088 if (!drv->if_removed) 1089 return; 1090 wpa_printf(MSG_DEBUG, "nl80211: Mark if_removed=0 for %s based on RTM_NEWLINK event", 1091 drv->first_bss->ifname); 1092 drv->if_removed = 0; 1093 } 1094 1095 os_memset(&event, 0, sizeof(event)); 1096 os_strlcpy(event.interface_status.ifname, ifname, 1097 sizeof(event.interface_status.ifname)); 1098 event.interface_status.ievent = EVENT_INTERFACE_ADDED; 1099 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); 1100} 1101 1102 1103static void wpa_driver_nl80211_event_dellink( 1104 struct wpa_driver_nl80211_data *drv, char *ifname) 1105{ 1106 union wpa_event_data event; 1107 1108 if (os_strcmp(drv->first_bss->ifname, ifname) == 0) { 1109 if (drv->if_removed) { 1110 wpa_printf(MSG_DEBUG, "nl80211: if_removed already set - ignore RTM_DELLINK event for %s", 1111 ifname); 1112 return; 1113 } 1114 wpa_printf(MSG_DEBUG, "RTM_DELLINK: Interface '%s' removed - mark if_removed=1", 1115 ifname); 1116 drv->if_removed = 1; 1117 } else { 1118 wpa_printf(MSG_DEBUG, "RTM_DELLINK: Interface '%s' removed", 1119 ifname); 1120 } 1121 1122 os_memset(&event, 0, sizeof(event)); 1123 os_strlcpy(event.interface_status.ifname, ifname, 1124 sizeof(event.interface_status.ifname)); 1125 event.interface_status.ievent = EVENT_INTERFACE_REMOVED; 1126 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); 1127} 1128 1129 1130static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv, 1131 u8 *buf, size_t len) 1132{ 1133 int attrlen, rta_len; 1134 struct rtattr *attr; 1135 1136 attrlen = len; 1137 attr = (struct rtattr *) buf; 1138 1139 rta_len = RTA_ALIGN(sizeof(struct rtattr)); 1140 while (RTA_OK(attr, attrlen)) { 1141 if (attr->rta_type == IFLA_IFNAME) { 1142 if (os_strcmp(((char *) attr) + rta_len, 1143 drv->first_bss->ifname) == 0) 1144 return 1; 1145 else 1146 break; 1147 } 1148 attr = RTA_NEXT(attr, attrlen); 1149 } 1150 1151 return 0; 1152} 1153 1154 1155static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv, 1156 int ifindex, u8 *buf, size_t len) 1157{ 1158 if (drv->ifindex == ifindex) 1159 return 1; 1160 1161 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) { 1162 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed " 1163 "interface"); 1164 wpa_driver_nl80211_finish_drv_init(drv, NULL, 0); 1165 return 1; 1166 } 1167 1168 return 0; 1169} 1170 1171 1172static struct wpa_driver_nl80211_data * 1173nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len) 1174{ 1175 struct wpa_driver_nl80211_data *drv; 1176 dl_list_for_each(drv, &global->interfaces, 1177 struct wpa_driver_nl80211_data, list) { 1178 if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) || 1179 have_ifidx(drv, idx)) 1180 return drv; 1181 } 1182 return NULL; 1183} 1184 1185 1186static void wpa_driver_nl80211_event_rtm_newlink(void *ctx, 1187 struct ifinfomsg *ifi, 1188 u8 *buf, size_t len) 1189{ 1190 struct nl80211_global *global = ctx; 1191 struct wpa_driver_nl80211_data *drv; 1192 int attrlen; 1193 struct rtattr *attr; 1194 u32 brid = 0; 1195 char namebuf[IFNAMSIZ]; 1196 char ifname[IFNAMSIZ + 1]; 1197 char extra[100], *pos, *end; 1198 1199 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); 1200 if (!drv) { 1201 wpa_printf(MSG_DEBUG, "nl80211: Ignore RTM_NEWLINK event for foreign ifindex %d", 1202 ifi->ifi_index); 1203 return; 1204 } 1205 1206 extra[0] = '\0'; 1207 pos = extra; 1208 end = pos + sizeof(extra); 1209 ifname[0] = '\0'; 1210 1211 attrlen = len; 1212 attr = (struct rtattr *) buf; 1213 while (RTA_OK(attr, attrlen)) { 1214 switch (attr->rta_type) { 1215 case IFLA_IFNAME: 1216 if (RTA_PAYLOAD(attr) >= IFNAMSIZ) 1217 break; 1218 os_memcpy(ifname, RTA_DATA(attr), RTA_PAYLOAD(attr)); 1219 ifname[RTA_PAYLOAD(attr)] = '\0'; 1220 break; 1221 case IFLA_MASTER: 1222 brid = nla_get_u32((struct nlattr *) attr); 1223 pos += os_snprintf(pos, end - pos, " master=%u", brid); 1224 break; 1225 case IFLA_WIRELESS: 1226 pos += os_snprintf(pos, end - pos, " wext"); 1227 break; 1228 case IFLA_OPERSTATE: 1229 pos += os_snprintf(pos, end - pos, " operstate=%u", 1230 nla_get_u32((struct nlattr *) attr)); 1231 break; 1232 case IFLA_LINKMODE: 1233 pos += os_snprintf(pos, end - pos, " linkmode=%u", 1234 nla_get_u32((struct nlattr *) attr)); 1235 break; 1236 } 1237 attr = RTA_NEXT(attr, attrlen); 1238 } 1239 extra[sizeof(extra) - 1] = '\0'; 1240 1241 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: ifi_index=%d ifname=%s%s ifi_flags=0x%x (%s%s%s%s)", 1242 ifi->ifi_index, ifname, extra, ifi->ifi_flags, 1243 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "", 1244 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "", 1245 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "", 1246 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : ""); 1247 1248 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) { 1249 if (if_indextoname(ifi->ifi_index, namebuf) && 1250 linux_iface_up(drv->global->ioctl_sock, 1251 drv->first_bss->ifname) > 0) { 1252 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " 1253 "event since interface %s is up", namebuf); 1254 return; 1255 } 1256 wpa_printf(MSG_DEBUG, "nl80211: Interface down"); 1257 if (drv->ignore_if_down_event) { 1258 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " 1259 "event generated by mode change"); 1260 drv->ignore_if_down_event = 0; 1261 } else { 1262 drv->if_disabled = 1; 1263 wpa_supplicant_event(drv->ctx, 1264 EVENT_INTERFACE_DISABLED, NULL); 1265 1266 /* 1267 * Try to get drv again, since it may be removed as 1268 * part of the EVENT_INTERFACE_DISABLED handling for 1269 * dynamic interfaces 1270 */ 1271 drv = nl80211_find_drv(global, ifi->ifi_index, 1272 buf, len); 1273 if (!drv) 1274 return; 1275 } 1276 } 1277 1278 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) { 1279 if (if_indextoname(ifi->ifi_index, namebuf) && 1280 linux_iface_up(drv->global->ioctl_sock, 1281 drv->first_bss->ifname) == 0) { 1282 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1283 "event since interface %s is down", 1284 namebuf); 1285 } else if (if_nametoindex(drv->first_bss->ifname) == 0) { 1286 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1287 "event since interface %s does not exist", 1288 drv->first_bss->ifname); 1289 } else if (drv->if_removed) { 1290 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1291 "event since interface %s is marked " 1292 "removed", drv->first_bss->ifname); 1293 } else { 1294 wpa_printf(MSG_DEBUG, "nl80211: Interface up"); 1295 drv->if_disabled = 0; 1296 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED, 1297 NULL); 1298 } 1299 } 1300 1301 /* 1302 * Some drivers send the association event before the operup event--in 1303 * this case, lifting operstate in wpa_driver_nl80211_set_operstate() 1304 * fails. This will hit us when wpa_supplicant does not need to do 1305 * IEEE 802.1X authentication 1306 */ 1307 if (drv->operstate == 1 && 1308 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP && 1309 !(ifi->ifi_flags & IFF_RUNNING)) { 1310 wpa_printf(MSG_DEBUG, "nl80211: Set IF_OPER_UP again based on ifi_flags and expected operstate"); 1311 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 1312 -1, IF_OPER_UP); 1313 } 1314 1315 if (ifname[0]) 1316 wpa_driver_nl80211_event_newlink(drv, ifname); 1317 1318 if (ifi->ifi_family == AF_BRIDGE && brid) { 1319 /* device has been added to bridge */ 1320 if_indextoname(brid, namebuf); 1321 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s", 1322 brid, namebuf); 1323 add_ifidx(drv, brid); 1324 } 1325} 1326 1327 1328static void wpa_driver_nl80211_event_rtm_dellink(void *ctx, 1329 struct ifinfomsg *ifi, 1330 u8 *buf, size_t len) 1331{ 1332 struct nl80211_global *global = ctx; 1333 struct wpa_driver_nl80211_data *drv; 1334 int attrlen; 1335 struct rtattr *attr; 1336 u32 brid = 0; 1337 char ifname[IFNAMSIZ + 1]; 1338 1339 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); 1340 if (!drv) { 1341 wpa_printf(MSG_DEBUG, "nl80211: Ignore RTM_DELLINK event for foreign ifindex %d", 1342 ifi->ifi_index); 1343 return; 1344 } 1345 1346 ifname[0] = '\0'; 1347 1348 attrlen = len; 1349 attr = (struct rtattr *) buf; 1350 while (RTA_OK(attr, attrlen)) { 1351 switch (attr->rta_type) { 1352 case IFLA_IFNAME: 1353 if (RTA_PAYLOAD(attr) >= IFNAMSIZ) 1354 break; 1355 os_memcpy(ifname, RTA_DATA(attr), RTA_PAYLOAD(attr)); 1356 ifname[RTA_PAYLOAD(attr)] = '\0'; 1357 break; 1358 case IFLA_MASTER: 1359 brid = nla_get_u32((struct nlattr *) attr); 1360 break; 1361 } 1362 attr = RTA_NEXT(attr, attrlen); 1363 } 1364 1365 if (ifname[0]) 1366 wpa_driver_nl80211_event_dellink(drv, ifname); 1367 1368 if (ifi->ifi_family == AF_BRIDGE && brid) { 1369 /* device has been removed from bridge */ 1370 char namebuf[IFNAMSIZ]; 1371 if_indextoname(brid, namebuf); 1372 wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge " 1373 "%s", brid, namebuf); 1374 del_ifidx(drv, brid); 1375 } 1376} 1377 1378 1379static void mlme_event_auth(struct wpa_driver_nl80211_data *drv, 1380 const u8 *frame, size_t len) 1381{ 1382 const struct ieee80211_mgmt *mgmt; 1383 union wpa_event_data event; 1384 1385 wpa_printf(MSG_DEBUG, "nl80211: Authenticate event"); 1386 mgmt = (const struct ieee80211_mgmt *) frame; 1387 if (len < 24 + sizeof(mgmt->u.auth)) { 1388 wpa_printf(MSG_DEBUG, "nl80211: Too short association event " 1389 "frame"); 1390 return; 1391 } 1392 1393 os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN); 1394 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 1395 os_memset(&event, 0, sizeof(event)); 1396 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN); 1397 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg); 1398 event.auth.auth_transaction = 1399 le_to_host16(mgmt->u.auth.auth_transaction); 1400 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code); 1401 if (len > 24 + sizeof(mgmt->u.auth)) { 1402 event.auth.ies = mgmt->u.auth.variable; 1403 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth); 1404 } 1405 1406 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event); 1407} 1408 1409 1410static unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv) 1411{ 1412 struct nl_msg *msg; 1413 int ret; 1414 struct nl80211_bss_info_arg arg; 1415 1416 os_memset(&arg, 0, sizeof(arg)); 1417 msg = nlmsg_alloc(); 1418 if (!msg) 1419 goto nla_put_failure; 1420 1421 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 1422 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 1423 1424 arg.drv = drv; 1425 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 1426 msg = NULL; 1427 if (ret == 0) { 1428 unsigned int freq = drv->nlmode == NL80211_IFTYPE_ADHOC ? 1429 arg.ibss_freq : arg.assoc_freq; 1430 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the " 1431 "associated BSS from scan results: %u MHz", freq); 1432 if (freq) 1433 drv->assoc_freq = freq; 1434 return drv->assoc_freq; 1435 } 1436 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 1437 "(%s)", ret, strerror(-ret)); 1438nla_put_failure: 1439 nlmsg_free(msg); 1440 return drv->assoc_freq; 1441} 1442 1443 1444static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv, 1445 const u8 *frame, size_t len) 1446{ 1447 const struct ieee80211_mgmt *mgmt; 1448 union wpa_event_data event; 1449 u16 status; 1450 1451 wpa_printf(MSG_DEBUG, "nl80211: Associate event"); 1452 mgmt = (const struct ieee80211_mgmt *) frame; 1453 if (len < 24 + sizeof(mgmt->u.assoc_resp)) { 1454 wpa_printf(MSG_DEBUG, "nl80211: Too short association event " 1455 "frame"); 1456 return; 1457 } 1458 1459 status = le_to_host16(mgmt->u.assoc_resp.status_code); 1460 if (status != WLAN_STATUS_SUCCESS) { 1461 os_memset(&event, 0, sizeof(event)); 1462 event.assoc_reject.bssid = mgmt->bssid; 1463 if (len > 24 + sizeof(mgmt->u.assoc_resp)) { 1464 event.assoc_reject.resp_ies = 1465 (u8 *) mgmt->u.assoc_resp.variable; 1466 event.assoc_reject.resp_ies_len = 1467 len - 24 - sizeof(mgmt->u.assoc_resp); 1468 } 1469 event.assoc_reject.status_code = status; 1470 1471 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); 1472 return; 1473 } 1474 1475 drv->associated = 1; 1476 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN); 1477 os_memcpy(drv->prev_bssid, mgmt->sa, ETH_ALEN); 1478 1479 os_memset(&event, 0, sizeof(event)); 1480 if (len > 24 + sizeof(mgmt->u.assoc_resp)) { 1481 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable; 1482 event.assoc_info.resp_ies_len = 1483 len - 24 - sizeof(mgmt->u.assoc_resp); 1484 } 1485 1486 event.assoc_info.freq = drv->assoc_freq; 1487 1488 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); 1489} 1490 1491 1492static void mlme_event_connect(struct wpa_driver_nl80211_data *drv, 1493 enum nl80211_commands cmd, struct nlattr *status, 1494 struct nlattr *addr, struct nlattr *req_ie, 1495 struct nlattr *resp_ie) 1496{ 1497 union wpa_event_data event; 1498 1499 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 1500 /* 1501 * Avoid reporting two association events that would confuse 1502 * the core code. 1503 */ 1504 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) " 1505 "when using userspace SME", cmd); 1506 return; 1507 } 1508 1509 if (cmd == NL80211_CMD_CONNECT) 1510 wpa_printf(MSG_DEBUG, "nl80211: Connect event"); 1511 else if (cmd == NL80211_CMD_ROAM) 1512 wpa_printf(MSG_DEBUG, "nl80211: Roam event"); 1513 1514 os_memset(&event, 0, sizeof(event)); 1515 if (cmd == NL80211_CMD_CONNECT && 1516 nla_get_u16(status) != WLAN_STATUS_SUCCESS) { 1517 if (addr) 1518 event.assoc_reject.bssid = nla_data(addr); 1519 if (resp_ie) { 1520 event.assoc_reject.resp_ies = nla_data(resp_ie); 1521 event.assoc_reject.resp_ies_len = nla_len(resp_ie); 1522 } 1523 event.assoc_reject.status_code = nla_get_u16(status); 1524 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); 1525 return; 1526 } 1527 1528 drv->associated = 1; 1529 if (addr) { 1530 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN); 1531 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); 1532 } 1533 1534 if (req_ie) { 1535 event.assoc_info.req_ies = nla_data(req_ie); 1536 event.assoc_info.req_ies_len = nla_len(req_ie); 1537 } 1538 if (resp_ie) { 1539 event.assoc_info.resp_ies = nla_data(resp_ie); 1540 event.assoc_info.resp_ies_len = nla_len(resp_ie); 1541 } 1542 1543 event.assoc_info.freq = nl80211_get_assoc_freq(drv); 1544 1545 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); 1546} 1547 1548 1549static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv, 1550 struct nlattr *reason, struct nlattr *addr, 1551 struct nlattr *by_ap) 1552{ 1553 union wpa_event_data data; 1554 unsigned int locally_generated = by_ap == NULL; 1555 1556 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 1557 /* 1558 * Avoid reporting two disassociation events that could 1559 * confuse the core code. 1560 */ 1561 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " 1562 "event when using userspace SME"); 1563 return; 1564 } 1565 1566 if (drv->ignore_next_local_disconnect) { 1567 drv->ignore_next_local_disconnect = 0; 1568 if (locally_generated) { 1569 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " 1570 "event triggered during reassociation"); 1571 return; 1572 } 1573 wpa_printf(MSG_WARNING, "nl80211: Was expecting local " 1574 "disconnect but got another disconnect " 1575 "event first"); 1576 } 1577 1578 wpa_printf(MSG_DEBUG, "nl80211: Disconnect event"); 1579 nl80211_mark_disconnected(drv); 1580 os_memset(&data, 0, sizeof(data)); 1581 if (reason) 1582 data.deauth_info.reason_code = nla_get_u16(reason); 1583 data.deauth_info.locally_generated = by_ap == NULL; 1584 wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, &data); 1585} 1586 1587 1588static int calculate_chan_offset(int width, int freq, int cf1, int cf2) 1589{ 1590 int freq1 = 0; 1591 1592 switch (convert2width(width)) { 1593 case CHAN_WIDTH_20_NOHT: 1594 case CHAN_WIDTH_20: 1595 return 0; 1596 case CHAN_WIDTH_40: 1597 freq1 = cf1 - 10; 1598 break; 1599 case CHAN_WIDTH_80: 1600 freq1 = cf1 - 30; 1601 break; 1602 case CHAN_WIDTH_160: 1603 freq1 = cf1 - 70; 1604 break; 1605 case CHAN_WIDTH_UNKNOWN: 1606 case CHAN_WIDTH_80P80: 1607 /* FIXME: implement this */ 1608 return 0; 1609 } 1610 1611 return (abs(freq - freq1) / 20) % 2 == 0 ? 1 : -1; 1612} 1613 1614 1615static void mlme_event_ch_switch(struct wpa_driver_nl80211_data *drv, 1616 struct nlattr *ifindex, struct nlattr *freq, 1617 struct nlattr *type, struct nlattr *bw, 1618 struct nlattr *cf1, struct nlattr *cf2) 1619{ 1620 struct i802_bss *bss; 1621 union wpa_event_data data; 1622 int ht_enabled = 1; 1623 int chan_offset = 0; 1624 int ifidx; 1625 1626 wpa_printf(MSG_DEBUG, "nl80211: Channel switch event"); 1627 1628 if (!freq) 1629 return; 1630 1631 ifidx = nla_get_u32(ifindex); 1632 for (bss = drv->first_bss; bss; bss = bss->next) 1633 if (bss->ifindex == ifidx) 1634 break; 1635 1636 if (bss == NULL) { 1637 wpa_printf(MSG_WARNING, "nl80211: Unknown ifindex (%d) for channel switch, ignoring", 1638 ifidx); 1639 return; 1640 } 1641 1642 if (type) { 1643 switch (nla_get_u32(type)) { 1644 case NL80211_CHAN_NO_HT: 1645 ht_enabled = 0; 1646 break; 1647 case NL80211_CHAN_HT20: 1648 break; 1649 case NL80211_CHAN_HT40PLUS: 1650 chan_offset = 1; 1651 break; 1652 case NL80211_CHAN_HT40MINUS: 1653 chan_offset = -1; 1654 break; 1655 } 1656 } else if (bw && cf1) { 1657 /* This can happen for example with VHT80 ch switch */ 1658 chan_offset = calculate_chan_offset(nla_get_u32(bw), 1659 nla_get_u32(freq), 1660 nla_get_u32(cf1), 1661 cf2 ? nla_get_u32(cf2) : 0); 1662 } else { 1663 wpa_printf(MSG_WARNING, "nl80211: Unknown secondary channel information - following channel definition calculations may fail"); 1664 } 1665 1666 os_memset(&data, 0, sizeof(data)); 1667 data.ch_switch.freq = nla_get_u32(freq); 1668 data.ch_switch.ht_enabled = ht_enabled; 1669 data.ch_switch.ch_offset = chan_offset; 1670 if (bw) 1671 data.ch_switch.ch_width = convert2width(nla_get_u32(bw)); 1672 if (cf1) 1673 data.ch_switch.cf1 = nla_get_u32(cf1); 1674 if (cf2) 1675 data.ch_switch.cf2 = nla_get_u32(cf2); 1676 1677 bss->freq = data.ch_switch.freq; 1678 1679 wpa_supplicant_event(drv->ctx, EVENT_CH_SWITCH, &data); 1680} 1681 1682 1683static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv, 1684 enum nl80211_commands cmd, struct nlattr *addr) 1685{ 1686 union wpa_event_data event; 1687 enum wpa_event_type ev; 1688 1689 if (nla_len(addr) != ETH_ALEN) 1690 return; 1691 1692 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR, 1693 cmd, MAC2STR((u8 *) nla_data(addr))); 1694 1695 if (cmd == NL80211_CMD_AUTHENTICATE) 1696 ev = EVENT_AUTH_TIMED_OUT; 1697 else if (cmd == NL80211_CMD_ASSOCIATE) 1698 ev = EVENT_ASSOC_TIMED_OUT; 1699 else 1700 return; 1701 1702 os_memset(&event, 0, sizeof(event)); 1703 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN); 1704 wpa_supplicant_event(drv->ctx, ev, &event); 1705} 1706 1707 1708static void mlme_event_mgmt(struct i802_bss *bss, 1709 struct nlattr *freq, struct nlattr *sig, 1710 const u8 *frame, size_t len) 1711{ 1712 struct wpa_driver_nl80211_data *drv = bss->drv; 1713 const struct ieee80211_mgmt *mgmt; 1714 union wpa_event_data event; 1715 u16 fc, stype; 1716 int ssi_signal = 0; 1717 int rx_freq = 0; 1718 1719 wpa_printf(MSG_MSGDUMP, "nl80211: Frame event"); 1720 mgmt = (const struct ieee80211_mgmt *) frame; 1721 if (len < 24) { 1722 wpa_printf(MSG_DEBUG, "nl80211: Too short management frame"); 1723 return; 1724 } 1725 1726 fc = le_to_host16(mgmt->frame_control); 1727 stype = WLAN_FC_GET_STYPE(fc); 1728 1729 if (sig) 1730 ssi_signal = (s32) nla_get_u32(sig); 1731 1732 os_memset(&event, 0, sizeof(event)); 1733 if (freq) { 1734 event.rx_mgmt.freq = nla_get_u32(freq); 1735 rx_freq = drv->last_mgmt_freq = event.rx_mgmt.freq; 1736 } 1737 wpa_printf(MSG_DEBUG, 1738 "nl80211: RX frame freq=%d ssi_signal=%d stype=%u len=%u", 1739 rx_freq, ssi_signal, stype, (unsigned int) len); 1740 event.rx_mgmt.frame = frame; 1741 event.rx_mgmt.frame_len = len; 1742 event.rx_mgmt.ssi_signal = ssi_signal; 1743 event.rx_mgmt.drv_priv = bss; 1744 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 1745} 1746 1747 1748static void mlme_event_mgmt_tx_status(struct wpa_driver_nl80211_data *drv, 1749 struct nlattr *cookie, const u8 *frame, 1750 size_t len, struct nlattr *ack) 1751{ 1752 union wpa_event_data event; 1753 const struct ieee80211_hdr *hdr; 1754 u16 fc; 1755 1756 wpa_printf(MSG_DEBUG, "nl80211: Frame TX status event"); 1757 if (!is_ap_interface(drv->nlmode)) { 1758 u64 cookie_val; 1759 1760 if (!cookie) 1761 return; 1762 1763 cookie_val = nla_get_u64(cookie); 1764 wpa_printf(MSG_DEBUG, "nl80211: Action TX status:" 1765 " cookie=0%llx%s (ack=%d)", 1766 (long long unsigned int) cookie_val, 1767 cookie_val == drv->send_action_cookie ? 1768 " (match)" : " (unknown)", ack != NULL); 1769 if (cookie_val != drv->send_action_cookie) 1770 return; 1771 } 1772 1773 hdr = (const struct ieee80211_hdr *) frame; 1774 fc = le_to_host16(hdr->frame_control); 1775 1776 os_memset(&event, 0, sizeof(event)); 1777 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 1778 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 1779 event.tx_status.dst = hdr->addr1; 1780 event.tx_status.data = frame; 1781 event.tx_status.data_len = len; 1782 event.tx_status.ack = ack != NULL; 1783 wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event); 1784} 1785 1786 1787static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv, 1788 enum wpa_event_type type, 1789 const u8 *frame, size_t len) 1790{ 1791 const struct ieee80211_mgmt *mgmt; 1792 union wpa_event_data event; 1793 const u8 *bssid = NULL; 1794 u16 reason_code = 0; 1795 1796 if (type == EVENT_DEAUTH) 1797 wpa_printf(MSG_DEBUG, "nl80211: Deauthenticate event"); 1798 else 1799 wpa_printf(MSG_DEBUG, "nl80211: Disassociate event"); 1800 1801 mgmt = (const struct ieee80211_mgmt *) frame; 1802 if (len >= 24) { 1803 bssid = mgmt->bssid; 1804 1805 if ((drv->capa.flags & WPA_DRIVER_FLAGS_SME) && 1806 !drv->associated && 1807 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0 && 1808 os_memcmp(bssid, drv->auth_attempt_bssid, ETH_ALEN) != 0 && 1809 os_memcmp(bssid, drv->prev_bssid, ETH_ALEN) == 0) { 1810 /* 1811 * Avoid issues with some roaming cases where 1812 * disconnection event for the old AP may show up after 1813 * we have started connection with the new AP. 1814 */ 1815 wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth/disassoc event from old AP " MACSTR " when already authenticating with " MACSTR, 1816 MAC2STR(bssid), 1817 MAC2STR(drv->auth_attempt_bssid)); 1818 return; 1819 } 1820 1821 if (drv->associated != 0 && 1822 os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 && 1823 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) { 1824 /* 1825 * We have presumably received this deauth as a 1826 * response to a clear_state_mismatch() outgoing 1827 * deauth. Don't let it take us offline! 1828 */ 1829 wpa_printf(MSG_DEBUG, "nl80211: Deauth received " 1830 "from Unknown BSSID " MACSTR " -- ignoring", 1831 MAC2STR(bssid)); 1832 return; 1833 } 1834 } 1835 1836 nl80211_mark_disconnected(drv); 1837 os_memset(&event, 0, sizeof(event)); 1838 1839 /* Note: Same offset for Reason Code in both frame subtypes */ 1840 if (len >= 24 + sizeof(mgmt->u.deauth)) 1841 reason_code = le_to_host16(mgmt->u.deauth.reason_code); 1842 1843 if (type == EVENT_DISASSOC) { 1844 event.disassoc_info.locally_generated = 1845 !os_memcmp(mgmt->sa, drv->first_bss->addr, ETH_ALEN); 1846 event.disassoc_info.addr = bssid; 1847 event.disassoc_info.reason_code = reason_code; 1848 if (frame + len > mgmt->u.disassoc.variable) { 1849 event.disassoc_info.ie = mgmt->u.disassoc.variable; 1850 event.disassoc_info.ie_len = frame + len - 1851 mgmt->u.disassoc.variable; 1852 } 1853 } else { 1854 if (drv->ignore_deauth_event) { 1855 wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth event due to previous forced deauth-during-auth"); 1856 drv->ignore_deauth_event = 0; 1857 return; 1858 } 1859 event.deauth_info.locally_generated = 1860 !os_memcmp(mgmt->sa, drv->first_bss->addr, ETH_ALEN); 1861 if (drv->ignore_next_local_deauth) { 1862 drv->ignore_next_local_deauth = 0; 1863 if (event.deauth_info.locally_generated) { 1864 wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth event triggered due to own deauth request"); 1865 return; 1866 } 1867 wpa_printf(MSG_WARNING, "nl80211: Was expecting local deauth but got another disconnect event first"); 1868 } 1869 event.deauth_info.addr = bssid; 1870 event.deauth_info.reason_code = reason_code; 1871 if (frame + len > mgmt->u.deauth.variable) { 1872 event.deauth_info.ie = mgmt->u.deauth.variable; 1873 event.deauth_info.ie_len = frame + len - 1874 mgmt->u.deauth.variable; 1875 } 1876 } 1877 1878 wpa_supplicant_event(drv->ctx, type, &event); 1879} 1880 1881 1882static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv, 1883 enum wpa_event_type type, 1884 const u8 *frame, size_t len) 1885{ 1886 const struct ieee80211_mgmt *mgmt; 1887 union wpa_event_data event; 1888 u16 reason_code = 0; 1889 1890 if (type == EVENT_UNPROT_DEAUTH) 1891 wpa_printf(MSG_DEBUG, "nl80211: Unprot Deauthenticate event"); 1892 else 1893 wpa_printf(MSG_DEBUG, "nl80211: Unprot Disassociate event"); 1894 1895 if (len < 24) 1896 return; 1897 1898 mgmt = (const struct ieee80211_mgmt *) frame; 1899 1900 os_memset(&event, 0, sizeof(event)); 1901 /* Note: Same offset for Reason Code in both frame subtypes */ 1902 if (len >= 24 + sizeof(mgmt->u.deauth)) 1903 reason_code = le_to_host16(mgmt->u.deauth.reason_code); 1904 1905 if (type == EVENT_UNPROT_DISASSOC) { 1906 event.unprot_disassoc.sa = mgmt->sa; 1907 event.unprot_disassoc.da = mgmt->da; 1908 event.unprot_disassoc.reason_code = reason_code; 1909 } else { 1910 event.unprot_deauth.sa = mgmt->sa; 1911 event.unprot_deauth.da = mgmt->da; 1912 event.unprot_deauth.reason_code = reason_code; 1913 } 1914 1915 wpa_supplicant_event(drv->ctx, type, &event); 1916} 1917 1918 1919static void mlme_event(struct i802_bss *bss, 1920 enum nl80211_commands cmd, struct nlattr *frame, 1921 struct nlattr *addr, struct nlattr *timed_out, 1922 struct nlattr *freq, struct nlattr *ack, 1923 struct nlattr *cookie, struct nlattr *sig) 1924{ 1925 struct wpa_driver_nl80211_data *drv = bss->drv; 1926 const u8 *data; 1927 size_t len; 1928 1929 if (timed_out && addr) { 1930 mlme_timeout_event(drv, cmd, addr); 1931 return; 1932 } 1933 1934 if (frame == NULL) { 1935 wpa_printf(MSG_DEBUG, 1936 "nl80211: MLME event %d (%s) without frame data", 1937 cmd, nl80211_command_to_string(cmd)); 1938 return; 1939 } 1940 1941 data = nla_data(frame); 1942 len = nla_len(frame); 1943 if (len < 4 + 2 * ETH_ALEN) { 1944 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" 1945 MACSTR ") - too short", 1946 cmd, nl80211_command_to_string(cmd), bss->ifname, 1947 MAC2STR(bss->addr)); 1948 return; 1949 } 1950 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" MACSTR 1951 ") A1=" MACSTR " A2=" MACSTR, cmd, 1952 nl80211_command_to_string(cmd), bss->ifname, 1953 MAC2STR(bss->addr), MAC2STR(data + 4), 1954 MAC2STR(data + 4 + ETH_ALEN)); 1955 if (cmd != NL80211_CMD_FRAME_TX_STATUS && !(data[4] & 0x01) && 1956 os_memcmp(bss->addr, data + 4, ETH_ALEN) != 0 && 1957 os_memcmp(bss->addr, data + 4 + ETH_ALEN, ETH_ALEN) != 0) { 1958 wpa_printf(MSG_MSGDUMP, "nl80211: %s: Ignore MLME frame event " 1959 "for foreign address", bss->ifname); 1960 return; 1961 } 1962 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame", 1963 nla_data(frame), nla_len(frame)); 1964 1965 switch (cmd) { 1966 case NL80211_CMD_AUTHENTICATE: 1967 mlme_event_auth(drv, nla_data(frame), nla_len(frame)); 1968 break; 1969 case NL80211_CMD_ASSOCIATE: 1970 mlme_event_assoc(drv, nla_data(frame), nla_len(frame)); 1971 break; 1972 case NL80211_CMD_DEAUTHENTICATE: 1973 mlme_event_deauth_disassoc(drv, EVENT_DEAUTH, 1974 nla_data(frame), nla_len(frame)); 1975 break; 1976 case NL80211_CMD_DISASSOCIATE: 1977 mlme_event_deauth_disassoc(drv, EVENT_DISASSOC, 1978 nla_data(frame), nla_len(frame)); 1979 break; 1980 case NL80211_CMD_FRAME: 1981 mlme_event_mgmt(bss, freq, sig, nla_data(frame), 1982 nla_len(frame)); 1983 break; 1984 case NL80211_CMD_FRAME_TX_STATUS: 1985 mlme_event_mgmt_tx_status(drv, cookie, nla_data(frame), 1986 nla_len(frame), ack); 1987 break; 1988 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 1989 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH, 1990 nla_data(frame), nla_len(frame)); 1991 break; 1992 case NL80211_CMD_UNPROT_DISASSOCIATE: 1993 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC, 1994 nla_data(frame), nla_len(frame)); 1995 break; 1996 default: 1997 break; 1998 } 1999} 2000 2001 2002static void mlme_event_michael_mic_failure(struct i802_bss *bss, 2003 struct nlattr *tb[]) 2004{ 2005 union wpa_event_data data; 2006 2007 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure"); 2008 os_memset(&data, 0, sizeof(data)); 2009 if (tb[NL80211_ATTR_MAC]) { 2010 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address", 2011 nla_data(tb[NL80211_ATTR_MAC]), 2012 nla_len(tb[NL80211_ATTR_MAC])); 2013 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]); 2014 } 2015 if (tb[NL80211_ATTR_KEY_SEQ]) { 2016 wpa_hexdump(MSG_DEBUG, "nl80211: TSC", 2017 nla_data(tb[NL80211_ATTR_KEY_SEQ]), 2018 nla_len(tb[NL80211_ATTR_KEY_SEQ])); 2019 } 2020 if (tb[NL80211_ATTR_KEY_TYPE]) { 2021 enum nl80211_key_type key_type = 2022 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]); 2023 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type); 2024 if (key_type == NL80211_KEYTYPE_PAIRWISE) 2025 data.michael_mic_failure.unicast = 1; 2026 } else 2027 data.michael_mic_failure.unicast = 1; 2028 2029 if (tb[NL80211_ATTR_KEY_IDX]) { 2030 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]); 2031 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id); 2032 } 2033 2034 wpa_supplicant_event(bss->ctx, EVENT_MICHAEL_MIC_FAILURE, &data); 2035} 2036 2037 2038static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv, 2039 struct nlattr *tb[]) 2040{ 2041 unsigned int freq; 2042 2043 if (tb[NL80211_ATTR_MAC] == NULL) { 2044 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined " 2045 "event"); 2046 return; 2047 } 2048 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2049 2050 drv->associated = 1; 2051 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined", 2052 MAC2STR(drv->bssid)); 2053 2054 freq = nl80211_get_assoc_freq(drv); 2055 if (freq) { 2056 wpa_printf(MSG_DEBUG, "nl80211: IBSS on frequency %u MHz", 2057 freq); 2058 drv->first_bss->freq = freq; 2059 } 2060 2061 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL); 2062} 2063 2064 2065static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv, 2066 int cancel_event, struct nlattr *tb[]) 2067{ 2068 unsigned int freq, chan_type, duration; 2069 union wpa_event_data data; 2070 u64 cookie; 2071 2072 if (tb[NL80211_ATTR_WIPHY_FREQ]) 2073 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); 2074 else 2075 freq = 0; 2076 2077 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) 2078 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); 2079 else 2080 chan_type = 0; 2081 2082 if (tb[NL80211_ATTR_DURATION]) 2083 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]); 2084 else 2085 duration = 0; 2086 2087 if (tb[NL80211_ATTR_COOKIE]) 2088 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 2089 else 2090 cookie = 0; 2091 2092 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d " 2093 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))", 2094 cancel_event, freq, chan_type, duration, 2095 (long long unsigned int) cookie, 2096 cookie == drv->remain_on_chan_cookie ? "match" : "unknown"); 2097 2098 if (cookie != drv->remain_on_chan_cookie) 2099 return; /* not for us */ 2100 2101 if (cancel_event) 2102 drv->pending_remain_on_chan = 0; 2103 2104 os_memset(&data, 0, sizeof(data)); 2105 data.remain_on_channel.freq = freq; 2106 data.remain_on_channel.duration = duration; 2107 wpa_supplicant_event(drv->ctx, cancel_event ? 2108 EVENT_CANCEL_REMAIN_ON_CHANNEL : 2109 EVENT_REMAIN_ON_CHANNEL, &data); 2110} 2111 2112 2113static void mlme_event_ft_event(struct wpa_driver_nl80211_data *drv, 2114 struct nlattr *tb[]) 2115{ 2116 union wpa_event_data data; 2117 2118 os_memset(&data, 0, sizeof(data)); 2119 2120 if (tb[NL80211_ATTR_IE]) { 2121 data.ft_ies.ies = nla_data(tb[NL80211_ATTR_IE]); 2122 data.ft_ies.ies_len = nla_len(tb[NL80211_ATTR_IE]); 2123 } 2124 2125 if (tb[NL80211_ATTR_IE_RIC]) { 2126 data.ft_ies.ric_ies = nla_data(tb[NL80211_ATTR_IE_RIC]); 2127 data.ft_ies.ric_ies_len = nla_len(tb[NL80211_ATTR_IE_RIC]); 2128 } 2129 2130 if (tb[NL80211_ATTR_MAC]) 2131 os_memcpy(data.ft_ies.target_ap, 2132 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2133 2134 wpa_printf(MSG_DEBUG, "nl80211: FT event target_ap " MACSTR, 2135 MAC2STR(data.ft_ies.target_ap)); 2136 2137 wpa_supplicant_event(drv->ctx, EVENT_FT_RESPONSE, &data); 2138} 2139 2140 2141static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted, 2142 struct nlattr *tb[]) 2143{ 2144 union wpa_event_data event; 2145 struct nlattr *nl; 2146 int rem; 2147 struct scan_info *info; 2148#define MAX_REPORT_FREQS 50 2149 int freqs[MAX_REPORT_FREQS]; 2150 int num_freqs = 0; 2151 2152 if (drv->scan_for_auth) { 2153 drv->scan_for_auth = 0; 2154 wpa_printf(MSG_DEBUG, "nl80211: Scan results for missing " 2155 "cfg80211 BSS entry"); 2156 wpa_driver_nl80211_authenticate_retry(drv); 2157 return; 2158 } 2159 2160 os_memset(&event, 0, sizeof(event)); 2161 info = &event.scan_info; 2162 info->aborted = aborted; 2163 2164 if (tb[NL80211_ATTR_SCAN_SSIDS]) { 2165 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) { 2166 struct wpa_driver_scan_ssid *s = 2167 &info->ssids[info->num_ssids]; 2168 s->ssid = nla_data(nl); 2169 s->ssid_len = nla_len(nl); 2170 wpa_printf(MSG_DEBUG, "nl80211: Scan probed for SSID '%s'", 2171 wpa_ssid_txt(s->ssid, s->ssid_len)); 2172 info->num_ssids++; 2173 if (info->num_ssids == WPAS_MAX_SCAN_SSIDS) 2174 break; 2175 } 2176 } 2177 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) { 2178 char msg[200], *pos, *end; 2179 int res; 2180 2181 pos = msg; 2182 end = pos + sizeof(msg); 2183 *pos = '\0'; 2184 2185 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem) 2186 { 2187 freqs[num_freqs] = nla_get_u32(nl); 2188 res = os_snprintf(pos, end - pos, " %d", 2189 freqs[num_freqs]); 2190 if (res > 0 && end - pos > res) 2191 pos += res; 2192 num_freqs++; 2193 if (num_freqs == MAX_REPORT_FREQS - 1) 2194 break; 2195 } 2196 info->freqs = freqs; 2197 info->num_freqs = num_freqs; 2198 wpa_printf(MSG_DEBUG, "nl80211: Scan included frequencies:%s", 2199 msg); 2200 } 2201 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event); 2202} 2203 2204 2205static int get_link_signal(struct nl_msg *msg, void *arg) 2206{ 2207 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2208 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2209 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1]; 2210 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = { 2211 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 }, 2212 [NL80211_STA_INFO_SIGNAL_AVG] = { .type = NLA_U8 }, 2213 }; 2214 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1]; 2215 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = { 2216 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 }, 2217 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 }, 2218 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG }, 2219 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG }, 2220 }; 2221 struct wpa_signal_info *sig_change = arg; 2222 2223 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2224 genlmsg_attrlen(gnlh, 0), NULL); 2225 if (!tb[NL80211_ATTR_STA_INFO] || 2226 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX, 2227 tb[NL80211_ATTR_STA_INFO], policy)) 2228 return NL_SKIP; 2229 if (!sinfo[NL80211_STA_INFO_SIGNAL]) 2230 return NL_SKIP; 2231 2232 sig_change->current_signal = 2233 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]); 2234 2235 if (sinfo[NL80211_STA_INFO_SIGNAL_AVG]) 2236 sig_change->avg_signal = 2237 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL_AVG]); 2238 else 2239 sig_change->avg_signal = 0; 2240 2241 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) { 2242 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX, 2243 sinfo[NL80211_STA_INFO_TX_BITRATE], 2244 rate_policy)) { 2245 sig_change->current_txrate = 0; 2246 } else { 2247 if (rinfo[NL80211_RATE_INFO_BITRATE]) { 2248 sig_change->current_txrate = 2249 nla_get_u16(rinfo[ 2250 NL80211_RATE_INFO_BITRATE]) * 100; 2251 } 2252 } 2253 } 2254 2255 return NL_SKIP; 2256} 2257 2258 2259static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv, 2260 struct wpa_signal_info *sig) 2261{ 2262 struct nl_msg *msg; 2263 2264 sig->current_signal = -9999; 2265 sig->current_txrate = 0; 2266 2267 msg = nlmsg_alloc(); 2268 if (!msg) 2269 return -ENOMEM; 2270 2271 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 2272 2273 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2274 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 2275 2276 return send_and_recv_msgs(drv, msg, get_link_signal, sig); 2277 nla_put_failure: 2278 nlmsg_free(msg); 2279 return -ENOBUFS; 2280} 2281 2282 2283static int get_link_noise(struct nl_msg *msg, void *arg) 2284{ 2285 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2286 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2287 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 2288 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 2289 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 2290 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 2291 }; 2292 struct wpa_signal_info *sig_change = arg; 2293 2294 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2295 genlmsg_attrlen(gnlh, 0), NULL); 2296 2297 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 2298 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!"); 2299 return NL_SKIP; 2300 } 2301 2302 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 2303 tb[NL80211_ATTR_SURVEY_INFO], 2304 survey_policy)) { 2305 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested " 2306 "attributes!"); 2307 return NL_SKIP; 2308 } 2309 2310 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 2311 return NL_SKIP; 2312 2313 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 2314 sig_change->frequency) 2315 return NL_SKIP; 2316 2317 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 2318 return NL_SKIP; 2319 2320 sig_change->current_noise = 2321 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 2322 2323 return NL_SKIP; 2324} 2325 2326 2327static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv, 2328 struct wpa_signal_info *sig_change) 2329{ 2330 struct nl_msg *msg; 2331 2332 sig_change->current_noise = 9999; 2333 sig_change->frequency = drv->assoc_freq; 2334 2335 msg = nlmsg_alloc(); 2336 if (!msg) 2337 return -ENOMEM; 2338 2339 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 2340 2341 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2342 2343 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change); 2344 nla_put_failure: 2345 nlmsg_free(msg); 2346 return -ENOBUFS; 2347} 2348 2349 2350static int get_noise_for_scan_results(struct nl_msg *msg, void *arg) 2351{ 2352 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2353 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2354 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 2355 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 2356 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 2357 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 2358 }; 2359 struct wpa_scan_results *scan_results = arg; 2360 struct wpa_scan_res *scan_res; 2361 size_t i; 2362 2363 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2364 genlmsg_attrlen(gnlh, 0), NULL); 2365 2366 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 2367 wpa_printf(MSG_DEBUG, "nl80211: Survey data missing"); 2368 return NL_SKIP; 2369 } 2370 2371 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 2372 tb[NL80211_ATTR_SURVEY_INFO], 2373 survey_policy)) { 2374 wpa_printf(MSG_DEBUG, "nl80211: Failed to parse nested " 2375 "attributes"); 2376 return NL_SKIP; 2377 } 2378 2379 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 2380 return NL_SKIP; 2381 2382 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 2383 return NL_SKIP; 2384 2385 for (i = 0; i < scan_results->num; ++i) { 2386 scan_res = scan_results->res[i]; 2387 if (!scan_res) 2388 continue; 2389 if ((int) nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 2390 scan_res->freq) 2391 continue; 2392 if (!(scan_res->flags & WPA_SCAN_NOISE_INVALID)) 2393 continue; 2394 scan_res->noise = (s8) 2395 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 2396 scan_res->flags &= ~WPA_SCAN_NOISE_INVALID; 2397 } 2398 2399 return NL_SKIP; 2400} 2401 2402 2403static int nl80211_get_noise_for_scan_results( 2404 struct wpa_driver_nl80211_data *drv, 2405 struct wpa_scan_results *scan_res) 2406{ 2407 struct nl_msg *msg; 2408 2409 msg = nlmsg_alloc(); 2410 if (!msg) 2411 return -ENOMEM; 2412 2413 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 2414 2415 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2416 2417 return send_and_recv_msgs(drv, msg, get_noise_for_scan_results, 2418 scan_res); 2419 nla_put_failure: 2420 nlmsg_free(msg); 2421 return -ENOBUFS; 2422} 2423 2424 2425static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv, 2426 struct nlattr *tb[]) 2427{ 2428 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = { 2429 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, 2430 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 }, 2431 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, 2432 [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 }, 2433 }; 2434 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1]; 2435 enum nl80211_cqm_rssi_threshold_event event; 2436 union wpa_event_data ed; 2437 struct wpa_signal_info sig; 2438 int res; 2439 2440 if (tb[NL80211_ATTR_CQM] == NULL || 2441 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM], 2442 cqm_policy)) { 2443 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event"); 2444 return; 2445 } 2446 2447 os_memset(&ed, 0, sizeof(ed)); 2448 2449 if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) { 2450 if (!tb[NL80211_ATTR_MAC]) 2451 return; 2452 os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]), 2453 ETH_ALEN); 2454 wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed); 2455 return; 2456 } 2457 2458 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL) 2459 return; 2460 event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]); 2461 2462 if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) { 2463 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 2464 "event: RSSI high"); 2465 ed.signal_change.above_threshold = 1; 2466 } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) { 2467 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 2468 "event: RSSI low"); 2469 ed.signal_change.above_threshold = 0; 2470 } else 2471 return; 2472 2473 res = nl80211_get_link_signal(drv, &sig); 2474 if (res == 0) { 2475 ed.signal_change.current_signal = sig.current_signal; 2476 ed.signal_change.current_txrate = sig.current_txrate; 2477 wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d", 2478 sig.current_signal, sig.current_txrate); 2479 } 2480 2481 res = nl80211_get_link_noise(drv, &sig); 2482 if (res == 0) { 2483 ed.signal_change.current_noise = sig.current_noise; 2484 wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm", 2485 sig.current_noise); 2486 } 2487 2488 wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed); 2489} 2490 2491 2492static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv, 2493 struct nlattr **tb) 2494{ 2495 u8 *addr; 2496 union wpa_event_data data; 2497 2498 if (tb[NL80211_ATTR_MAC] == NULL) 2499 return; 2500 addr = nla_data(tb[NL80211_ATTR_MAC]); 2501 wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr)); 2502 2503 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2504 u8 *ies = NULL; 2505 size_t ies_len = 0; 2506 if (tb[NL80211_ATTR_IE]) { 2507 ies = nla_data(tb[NL80211_ATTR_IE]); 2508 ies_len = nla_len(tb[NL80211_ATTR_IE]); 2509 } 2510 wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len); 2511 drv_event_assoc(drv->ctx, addr, ies, ies_len, 0); 2512 return; 2513 } 2514 2515 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2516 return; 2517 2518 os_memset(&data, 0, sizeof(data)); 2519 os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN); 2520 wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data); 2521} 2522 2523 2524static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv, 2525 struct nlattr **tb) 2526{ 2527 u8 *addr; 2528 union wpa_event_data data; 2529 2530 if (tb[NL80211_ATTR_MAC] == NULL) 2531 return; 2532 addr = nla_data(tb[NL80211_ATTR_MAC]); 2533 wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR, 2534 MAC2STR(addr)); 2535 2536 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2537 drv_event_disassoc(drv->ctx, addr); 2538 return; 2539 } 2540 2541 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2542 return; 2543 2544 os_memset(&data, 0, sizeof(data)); 2545 os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN); 2546 wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data); 2547} 2548 2549 2550static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv, 2551 struct nlattr **tb) 2552{ 2553 struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA]; 2554 static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = { 2555 [NL80211_REKEY_DATA_KEK] = { 2556 .minlen = NL80211_KEK_LEN, 2557 .maxlen = NL80211_KEK_LEN, 2558 }, 2559 [NL80211_REKEY_DATA_KCK] = { 2560 .minlen = NL80211_KCK_LEN, 2561 .maxlen = NL80211_KCK_LEN, 2562 }, 2563 [NL80211_REKEY_DATA_REPLAY_CTR] = { 2564 .minlen = NL80211_REPLAY_CTR_LEN, 2565 .maxlen = NL80211_REPLAY_CTR_LEN, 2566 }, 2567 }; 2568 union wpa_event_data data; 2569 2570 if (!tb[NL80211_ATTR_MAC]) 2571 return; 2572 if (!tb[NL80211_ATTR_REKEY_DATA]) 2573 return; 2574 if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA, 2575 tb[NL80211_ATTR_REKEY_DATA], rekey_policy)) 2576 return; 2577 if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]) 2578 return; 2579 2580 os_memset(&data, 0, sizeof(data)); 2581 data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]); 2582 wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR, 2583 MAC2STR(data.driver_gtk_rekey.bssid)); 2584 data.driver_gtk_rekey.replay_ctr = 2585 nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]); 2586 wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter", 2587 data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN); 2588 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data); 2589} 2590 2591 2592static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv, 2593 struct nlattr **tb) 2594{ 2595 struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE]; 2596 static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = { 2597 [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 }, 2598 [NL80211_PMKSA_CANDIDATE_BSSID] = { 2599 .minlen = ETH_ALEN, 2600 .maxlen = ETH_ALEN, 2601 }, 2602 [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG }, 2603 }; 2604 union wpa_event_data data; 2605 2606 wpa_printf(MSG_DEBUG, "nl80211: PMKSA candidate event"); 2607 2608 if (!tb[NL80211_ATTR_PMKSA_CANDIDATE]) 2609 return; 2610 if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE, 2611 tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy)) 2612 return; 2613 if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] || 2614 !cand[NL80211_PMKSA_CANDIDATE_BSSID]) 2615 return; 2616 2617 os_memset(&data, 0, sizeof(data)); 2618 os_memcpy(data.pmkid_candidate.bssid, 2619 nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN); 2620 data.pmkid_candidate.index = 2621 nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]); 2622 data.pmkid_candidate.preauth = 2623 cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL; 2624 wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data); 2625} 2626 2627 2628static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv, 2629 struct nlattr **tb) 2630{ 2631 union wpa_event_data data; 2632 2633 wpa_printf(MSG_DEBUG, "nl80211: Probe client event"); 2634 2635 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_ACK]) 2636 return; 2637 2638 os_memset(&data, 0, sizeof(data)); 2639 os_memcpy(data.client_poll.addr, 2640 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2641 2642 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_CLIENT_POLL_OK, &data); 2643} 2644 2645 2646static void nl80211_tdls_oper_event(struct wpa_driver_nl80211_data *drv, 2647 struct nlattr **tb) 2648{ 2649 union wpa_event_data data; 2650 2651 wpa_printf(MSG_DEBUG, "nl80211: TDLS operation event"); 2652 2653 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_TDLS_OPERATION]) 2654 return; 2655 2656 os_memset(&data, 0, sizeof(data)); 2657 os_memcpy(data.tdls.peer, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2658 switch (nla_get_u8(tb[NL80211_ATTR_TDLS_OPERATION])) { 2659 case NL80211_TDLS_SETUP: 2660 wpa_printf(MSG_DEBUG, "nl80211: TDLS setup request for peer " 2661 MACSTR, MAC2STR(data.tdls.peer)); 2662 data.tdls.oper = TDLS_REQUEST_SETUP; 2663 break; 2664 case NL80211_TDLS_TEARDOWN: 2665 wpa_printf(MSG_DEBUG, "nl80211: TDLS teardown request for peer " 2666 MACSTR, MAC2STR(data.tdls.peer)); 2667 data.tdls.oper = TDLS_REQUEST_TEARDOWN; 2668 break; 2669 default: 2670 wpa_printf(MSG_DEBUG, "nl80211: Unsupported TDLS operatione " 2671 "event"); 2672 return; 2673 } 2674 if (tb[NL80211_ATTR_REASON_CODE]) { 2675 data.tdls.reason_code = 2676 nla_get_u16(tb[NL80211_ATTR_REASON_CODE]); 2677 } 2678 2679 wpa_supplicant_event(drv->ctx, EVENT_TDLS, &data); 2680} 2681 2682 2683static void nl80211_stop_ap(struct wpa_driver_nl80211_data *drv, 2684 struct nlattr **tb) 2685{ 2686 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_UNAVAILABLE, NULL); 2687} 2688 2689 2690static void nl80211_connect_failed_event(struct wpa_driver_nl80211_data *drv, 2691 struct nlattr **tb) 2692{ 2693 union wpa_event_data data; 2694 u32 reason; 2695 2696 wpa_printf(MSG_DEBUG, "nl80211: Connect failed event"); 2697 2698 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_CONN_FAILED_REASON]) 2699 return; 2700 2701 os_memset(&data, 0, sizeof(data)); 2702 os_memcpy(data.connect_failed_reason.addr, 2703 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2704 2705 reason = nla_get_u32(tb[NL80211_ATTR_CONN_FAILED_REASON]); 2706 switch (reason) { 2707 case NL80211_CONN_FAIL_MAX_CLIENTS: 2708 wpa_printf(MSG_DEBUG, "nl80211: Max client reached"); 2709 data.connect_failed_reason.code = MAX_CLIENT_REACHED; 2710 break; 2711 case NL80211_CONN_FAIL_BLOCKED_CLIENT: 2712 wpa_printf(MSG_DEBUG, "nl80211: Blocked client " MACSTR 2713 " tried to connect", 2714 MAC2STR(data.connect_failed_reason.addr)); 2715 data.connect_failed_reason.code = BLOCKED_CLIENT; 2716 break; 2717 default: 2718 wpa_printf(MSG_DEBUG, "nl8021l: Unknown connect failed reason " 2719 "%u", reason); 2720 return; 2721 } 2722 2723 wpa_supplicant_event(drv->ctx, EVENT_CONNECT_FAILED_REASON, &data); 2724} 2725 2726 2727static void nl80211_radar_event(struct wpa_driver_nl80211_data *drv, 2728 struct nlattr **tb) 2729{ 2730 union wpa_event_data data; 2731 enum nl80211_radar_event event_type; 2732 2733 if (!tb[NL80211_ATTR_WIPHY_FREQ] || !tb[NL80211_ATTR_RADAR_EVENT]) 2734 return; 2735 2736 os_memset(&data, 0, sizeof(data)); 2737 data.dfs_event.freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); 2738 event_type = nla_get_u32(tb[NL80211_ATTR_RADAR_EVENT]); 2739 2740 /* Check HT params */ 2741 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { 2742 data.dfs_event.ht_enabled = 1; 2743 data.dfs_event.chan_offset = 0; 2744 2745 switch (nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])) { 2746 case NL80211_CHAN_NO_HT: 2747 data.dfs_event.ht_enabled = 0; 2748 break; 2749 case NL80211_CHAN_HT20: 2750 break; 2751 case NL80211_CHAN_HT40PLUS: 2752 data.dfs_event.chan_offset = 1; 2753 break; 2754 case NL80211_CHAN_HT40MINUS: 2755 data.dfs_event.chan_offset = -1; 2756 break; 2757 } 2758 } 2759 2760 /* Get VHT params */ 2761 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) 2762 data.dfs_event.chan_width = 2763 convert2width(nla_get_u32( 2764 tb[NL80211_ATTR_CHANNEL_WIDTH])); 2765 if (tb[NL80211_ATTR_CENTER_FREQ1]) 2766 data.dfs_event.cf1 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); 2767 if (tb[NL80211_ATTR_CENTER_FREQ2]) 2768 data.dfs_event.cf2 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); 2769 2770 wpa_printf(MSG_DEBUG, "nl80211: DFS event on freq %d MHz, ht: %d, offset: %d, width: %d, cf1: %dMHz, cf2: %dMHz", 2771 data.dfs_event.freq, data.dfs_event.ht_enabled, 2772 data.dfs_event.chan_offset, data.dfs_event.chan_width, 2773 data.dfs_event.cf1, data.dfs_event.cf2); 2774 2775 switch (event_type) { 2776 case NL80211_RADAR_DETECTED: 2777 wpa_supplicant_event(drv->ctx, EVENT_DFS_RADAR_DETECTED, &data); 2778 break; 2779 case NL80211_RADAR_CAC_FINISHED: 2780 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_FINISHED, &data); 2781 break; 2782 case NL80211_RADAR_CAC_ABORTED: 2783 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_ABORTED, &data); 2784 break; 2785 case NL80211_RADAR_NOP_FINISHED: 2786 wpa_supplicant_event(drv->ctx, EVENT_DFS_NOP_FINISHED, &data); 2787 break; 2788 default: 2789 wpa_printf(MSG_DEBUG, "nl80211: Unknown radar event %d " 2790 "received", event_type); 2791 break; 2792 } 2793} 2794 2795 2796static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb, 2797 int wds) 2798{ 2799 struct wpa_driver_nl80211_data *drv = bss->drv; 2800 union wpa_event_data event; 2801 2802 if (!tb[NL80211_ATTR_MAC]) 2803 return; 2804 2805 os_memset(&event, 0, sizeof(event)); 2806 event.rx_from_unknown.bssid = bss->addr; 2807 event.rx_from_unknown.addr = nla_data(tb[NL80211_ATTR_MAC]); 2808 event.rx_from_unknown.wds = wds; 2809 2810 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 2811} 2812 2813 2814static void qca_nl80211_avoid_freq(struct wpa_driver_nl80211_data *drv, 2815 const u8 *data, size_t len) 2816{ 2817 u32 i, count; 2818 union wpa_event_data event; 2819 struct wpa_freq_range *range = NULL; 2820 const struct qca_avoid_freq_list *freq_range; 2821 2822 freq_range = (const struct qca_avoid_freq_list *) data; 2823 if (len < sizeof(freq_range->count)) 2824 return; 2825 2826 count = freq_range->count; 2827 if (len < sizeof(freq_range->count) + 2828 count * sizeof(struct qca_avoid_freq_range)) { 2829 wpa_printf(MSG_DEBUG, "nl80211: Ignored too short avoid frequency list (len=%u)", 2830 (unsigned int) len); 2831 return; 2832 } 2833 2834 if (count > 0) { 2835 range = os_calloc(count, sizeof(struct wpa_freq_range)); 2836 if (range == NULL) 2837 return; 2838 } 2839 2840 os_memset(&event, 0, sizeof(event)); 2841 for (i = 0; i < count; i++) { 2842 unsigned int idx = event.freq_range.num; 2843 range[idx].min = freq_range->range[i].start_freq; 2844 range[idx].max = freq_range->range[i].end_freq; 2845 wpa_printf(MSG_DEBUG, "nl80211: Avoid frequency range: %u-%u", 2846 range[idx].min, range[idx].max); 2847 if (range[idx].min > range[idx].max) { 2848 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid frequency range"); 2849 continue; 2850 } 2851 event.freq_range.num++; 2852 } 2853 event.freq_range.range = range; 2854 2855 wpa_supplicant_event(drv->ctx, EVENT_AVOID_FREQUENCIES, &event); 2856 2857 os_free(range); 2858} 2859 2860 2861static void nl80211_vendor_event_qca(struct wpa_driver_nl80211_data *drv, 2862 u32 subcmd, u8 *data, size_t len) 2863{ 2864 switch (subcmd) { 2865 case QCA_NL80211_VENDOR_SUBCMD_AVOID_FREQUENCY: 2866 qca_nl80211_avoid_freq(drv, data, len); 2867 break; 2868 default: 2869 wpa_printf(MSG_DEBUG, 2870 "nl80211: Ignore unsupported QCA vendor event %u", 2871 subcmd); 2872 break; 2873 } 2874} 2875 2876 2877static void nl80211_vendor_event(struct wpa_driver_nl80211_data *drv, 2878 struct nlattr **tb) 2879{ 2880 u32 vendor_id, subcmd, wiphy = 0; 2881 int wiphy_idx; 2882 u8 *data = NULL; 2883 size_t len = 0; 2884 2885 if (!tb[NL80211_ATTR_VENDOR_ID] || 2886 !tb[NL80211_ATTR_VENDOR_SUBCMD]) 2887 return; 2888 2889 vendor_id = nla_get_u32(tb[NL80211_ATTR_VENDOR_ID]); 2890 subcmd = nla_get_u32(tb[NL80211_ATTR_VENDOR_SUBCMD]); 2891 2892 if (tb[NL80211_ATTR_WIPHY]) 2893 wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]); 2894 2895 wpa_printf(MSG_DEBUG, "nl80211: Vendor event: wiphy=%u vendor_id=0x%x subcmd=%u", 2896 wiphy, vendor_id, subcmd); 2897 2898 if (tb[NL80211_ATTR_VENDOR_DATA]) { 2899 data = nla_data(tb[NL80211_ATTR_VENDOR_DATA]); 2900 len = nla_len(tb[NL80211_ATTR_VENDOR_DATA]); 2901 wpa_hexdump(MSG_MSGDUMP, "nl80211: Vendor data", data, len); 2902 } 2903 2904 wiphy_idx = nl80211_get_wiphy_index(drv->first_bss); 2905 if (wiphy_idx >= 0 && wiphy_idx != (int) wiphy) { 2906 wpa_printf(MSG_DEBUG, "nl80211: Ignore vendor event for foreign wiphy %u (own: %d)", 2907 wiphy, wiphy_idx); 2908 return; 2909 } 2910 2911 switch (vendor_id) { 2912 case OUI_QCA: 2913 nl80211_vendor_event_qca(drv, subcmd, data, len); 2914 break; 2915 default: 2916 wpa_printf(MSG_DEBUG, "nl80211: Ignore unsupported vendor event"); 2917 break; 2918 } 2919} 2920 2921 2922static void nl80211_reg_change_event(struct wpa_driver_nl80211_data *drv, 2923 struct nlattr *tb[]) 2924{ 2925 union wpa_event_data data; 2926 enum nl80211_reg_initiator init; 2927 2928 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change"); 2929 2930 if (tb[NL80211_ATTR_REG_INITIATOR] == NULL) 2931 return; 2932 2933 os_memset(&data, 0, sizeof(data)); 2934 init = nla_get_u8(tb[NL80211_ATTR_REG_INITIATOR]); 2935 wpa_printf(MSG_DEBUG, " * initiator=%d", init); 2936 switch (init) { 2937 case NL80211_REGDOM_SET_BY_CORE: 2938 data.channel_list_changed.initiator = REGDOM_SET_BY_CORE; 2939 break; 2940 case NL80211_REGDOM_SET_BY_USER: 2941 data.channel_list_changed.initiator = REGDOM_SET_BY_USER; 2942 break; 2943 case NL80211_REGDOM_SET_BY_DRIVER: 2944 data.channel_list_changed.initiator = REGDOM_SET_BY_DRIVER; 2945 break; 2946 case NL80211_REGDOM_SET_BY_COUNTRY_IE: 2947 data.channel_list_changed.initiator = REGDOM_SET_BY_COUNTRY_IE; 2948 break; 2949 } 2950 2951 if (tb[NL80211_ATTR_REG_TYPE]) { 2952 enum nl80211_reg_type type; 2953 type = nla_get_u8(tb[NL80211_ATTR_REG_TYPE]); 2954 wpa_printf(MSG_DEBUG, " * type=%d", type); 2955 switch (type) { 2956 case NL80211_REGDOM_TYPE_COUNTRY: 2957 data.channel_list_changed.type = REGDOM_TYPE_COUNTRY; 2958 break; 2959 case NL80211_REGDOM_TYPE_WORLD: 2960 data.channel_list_changed.type = REGDOM_TYPE_WORLD; 2961 break; 2962 case NL80211_REGDOM_TYPE_CUSTOM_WORLD: 2963 data.channel_list_changed.type = 2964 REGDOM_TYPE_CUSTOM_WORLD; 2965 break; 2966 case NL80211_REGDOM_TYPE_INTERSECTION: 2967 data.channel_list_changed.type = 2968 REGDOM_TYPE_INTERSECTION; 2969 break; 2970 } 2971 } 2972 2973 if (tb[NL80211_ATTR_REG_ALPHA2]) { 2974 os_strlcpy(data.channel_list_changed.alpha2, 2975 nla_get_string(tb[NL80211_ATTR_REG_ALPHA2]), 2976 sizeof(data.channel_list_changed.alpha2)); 2977 wpa_printf(MSG_DEBUG, " * alpha2=%s", 2978 data.channel_list_changed.alpha2); 2979 } 2980 2981 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, &data); 2982} 2983 2984 2985static void do_process_drv_event(struct i802_bss *bss, int cmd, 2986 struct nlattr **tb) 2987{ 2988 struct wpa_driver_nl80211_data *drv = bss->drv; 2989 union wpa_event_data data; 2990 2991 wpa_printf(MSG_DEBUG, "nl80211: Drv Event %d (%s) received for %s", 2992 cmd, nl80211_command_to_string(cmd), bss->ifname); 2993 2994 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED && 2995 (cmd == NL80211_CMD_NEW_SCAN_RESULTS || 2996 cmd == NL80211_CMD_SCAN_ABORTED)) { 2997 wpa_driver_nl80211_set_mode(drv->first_bss, 2998 drv->ap_scan_as_station); 2999 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 3000 } 3001 3002 switch (cmd) { 3003 case NL80211_CMD_TRIGGER_SCAN: 3004 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan trigger"); 3005 drv->scan_state = SCAN_STARTED; 3006 if (drv->scan_for_auth) { 3007 /* 3008 * Cannot indicate EVENT_SCAN_STARTED here since we skip 3009 * EVENT_SCAN_RESULTS in scan_for_auth case and the 3010 * upper layer implementation could get confused about 3011 * scanning state. 3012 */ 3013 wpa_printf(MSG_DEBUG, "nl80211: Do not indicate scan-start event due to internal scan_for_auth"); 3014 break; 3015 } 3016 wpa_supplicant_event(drv->ctx, EVENT_SCAN_STARTED, NULL); 3017 break; 3018 case NL80211_CMD_START_SCHED_SCAN: 3019 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan started"); 3020 drv->scan_state = SCHED_SCAN_STARTED; 3021 break; 3022 case NL80211_CMD_SCHED_SCAN_STOPPED: 3023 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan stopped"); 3024 drv->scan_state = SCHED_SCAN_STOPPED; 3025 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL); 3026 break; 3027 case NL80211_CMD_NEW_SCAN_RESULTS: 3028 wpa_dbg(drv->ctx, MSG_DEBUG, 3029 "nl80211: New scan results available"); 3030 drv->scan_state = SCAN_COMPLETED; 3031 drv->scan_complete_events = 1; 3032 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 3033 drv->ctx); 3034 send_scan_event(drv, 0, tb); 3035 break; 3036 case NL80211_CMD_SCHED_SCAN_RESULTS: 3037 wpa_dbg(drv->ctx, MSG_DEBUG, 3038 "nl80211: New sched scan results available"); 3039 drv->scan_state = SCHED_SCAN_RESULTS; 3040 send_scan_event(drv, 0, tb); 3041 break; 3042 case NL80211_CMD_SCAN_ABORTED: 3043 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan aborted"); 3044 drv->scan_state = SCAN_ABORTED; 3045 /* 3046 * Need to indicate that scan results are available in order 3047 * not to make wpa_supplicant stop its scanning. 3048 */ 3049 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 3050 drv->ctx); 3051 send_scan_event(drv, 1, tb); 3052 break; 3053 case NL80211_CMD_AUTHENTICATE: 3054 case NL80211_CMD_ASSOCIATE: 3055 case NL80211_CMD_DEAUTHENTICATE: 3056 case NL80211_CMD_DISASSOCIATE: 3057 case NL80211_CMD_FRAME_TX_STATUS: 3058 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 3059 case NL80211_CMD_UNPROT_DISASSOCIATE: 3060 mlme_event(bss, cmd, tb[NL80211_ATTR_FRAME], 3061 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 3062 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 3063 tb[NL80211_ATTR_COOKIE], 3064 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 3065 break; 3066 case NL80211_CMD_CONNECT: 3067 case NL80211_CMD_ROAM: 3068 mlme_event_connect(drv, cmd, 3069 tb[NL80211_ATTR_STATUS_CODE], 3070 tb[NL80211_ATTR_MAC], 3071 tb[NL80211_ATTR_REQ_IE], 3072 tb[NL80211_ATTR_RESP_IE]); 3073 break; 3074 case NL80211_CMD_CH_SWITCH_NOTIFY: 3075 mlme_event_ch_switch(drv, 3076 tb[NL80211_ATTR_IFINDEX], 3077 tb[NL80211_ATTR_WIPHY_FREQ], 3078 tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE], 3079 tb[NL80211_ATTR_CHANNEL_WIDTH], 3080 tb[NL80211_ATTR_CENTER_FREQ1], 3081 tb[NL80211_ATTR_CENTER_FREQ2]); 3082 break; 3083 case NL80211_CMD_DISCONNECT: 3084 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE], 3085 tb[NL80211_ATTR_MAC], 3086 tb[NL80211_ATTR_DISCONNECTED_BY_AP]); 3087 break; 3088 case NL80211_CMD_MICHAEL_MIC_FAILURE: 3089 mlme_event_michael_mic_failure(bss, tb); 3090 break; 3091 case NL80211_CMD_JOIN_IBSS: 3092 mlme_event_join_ibss(drv, tb); 3093 break; 3094 case NL80211_CMD_REMAIN_ON_CHANNEL: 3095 mlme_event_remain_on_channel(drv, 0, tb); 3096 break; 3097 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL: 3098 mlme_event_remain_on_channel(drv, 1, tb); 3099 break; 3100 case NL80211_CMD_NOTIFY_CQM: 3101 nl80211_cqm_event(drv, tb); 3102 break; 3103 case NL80211_CMD_REG_CHANGE: 3104 nl80211_reg_change_event(drv, tb); 3105 break; 3106 case NL80211_CMD_REG_BEACON_HINT: 3107 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint"); 3108 os_memset(&data, 0, sizeof(data)); 3109 data.channel_list_changed.initiator = REGDOM_BEACON_HINT; 3110 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 3111 &data); 3112 break; 3113 case NL80211_CMD_NEW_STATION: 3114 nl80211_new_station_event(drv, tb); 3115 break; 3116 case NL80211_CMD_DEL_STATION: 3117 nl80211_del_station_event(drv, tb); 3118 break; 3119 case NL80211_CMD_SET_REKEY_OFFLOAD: 3120 nl80211_rekey_offload_event(drv, tb); 3121 break; 3122 case NL80211_CMD_PMKSA_CANDIDATE: 3123 nl80211_pmksa_candidate_event(drv, tb); 3124 break; 3125 case NL80211_CMD_PROBE_CLIENT: 3126 nl80211_client_probe_event(drv, tb); 3127 break; 3128 case NL80211_CMD_TDLS_OPER: 3129 nl80211_tdls_oper_event(drv, tb); 3130 break; 3131 case NL80211_CMD_CONN_FAILED: 3132 nl80211_connect_failed_event(drv, tb); 3133 break; 3134 case NL80211_CMD_FT_EVENT: 3135 mlme_event_ft_event(drv, tb); 3136 break; 3137 case NL80211_CMD_RADAR_DETECT: 3138 nl80211_radar_event(drv, tb); 3139 break; 3140 case NL80211_CMD_STOP_AP: 3141 nl80211_stop_ap(drv, tb); 3142 break; 3143 case NL80211_CMD_VENDOR: 3144 nl80211_vendor_event(drv, tb); 3145 break; 3146 default: 3147 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Ignored unknown event " 3148 "(cmd=%d)", cmd); 3149 break; 3150 } 3151} 3152 3153 3154static int process_drv_event(struct nl_msg *msg, void *arg) 3155{ 3156 struct wpa_driver_nl80211_data *drv = arg; 3157 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3158 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3159 struct i802_bss *bss; 3160 int ifidx = -1; 3161 3162 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3163 genlmsg_attrlen(gnlh, 0), NULL); 3164 3165 if (tb[NL80211_ATTR_IFINDEX]) { 3166 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 3167 3168 for (bss = drv->first_bss; bss; bss = bss->next) 3169 if (ifidx == -1 || ifidx == bss->ifindex) { 3170 do_process_drv_event(bss, gnlh->cmd, tb); 3171 return NL_SKIP; 3172 } 3173 wpa_printf(MSG_DEBUG, 3174 "nl80211: Ignored event (cmd=%d) for foreign interface (ifindex %d)", 3175 gnlh->cmd, ifidx); 3176 } else if (tb[NL80211_ATTR_WDEV]) { 3177 u64 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 3178 wpa_printf(MSG_DEBUG, "nl80211: Process event on P2P device"); 3179 for (bss = drv->first_bss; bss; bss = bss->next) { 3180 if (bss->wdev_id_set && wdev_id == bss->wdev_id) { 3181 do_process_drv_event(bss, gnlh->cmd, tb); 3182 return NL_SKIP; 3183 } 3184 } 3185 wpa_printf(MSG_DEBUG, 3186 "nl80211: Ignored event (cmd=%d) for foreign interface (wdev 0x%llx)", 3187 gnlh->cmd, (long long unsigned int) wdev_id); 3188 } 3189 3190 return NL_SKIP; 3191} 3192 3193 3194static int process_global_event(struct nl_msg *msg, void *arg) 3195{ 3196 struct nl80211_global *global = arg; 3197 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3198 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3199 struct wpa_driver_nl80211_data *drv, *tmp; 3200 int ifidx = -1; 3201 struct i802_bss *bss; 3202 u64 wdev_id = 0; 3203 int wdev_id_set = 0; 3204 3205 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3206 genlmsg_attrlen(gnlh, 0), NULL); 3207 3208 if (tb[NL80211_ATTR_IFINDEX]) 3209 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 3210 else if (tb[NL80211_ATTR_WDEV]) { 3211 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 3212 wdev_id_set = 1; 3213 } 3214 3215 dl_list_for_each_safe(drv, tmp, &global->interfaces, 3216 struct wpa_driver_nl80211_data, list) { 3217 for (bss = drv->first_bss; bss; bss = bss->next) { 3218 if ((ifidx == -1 && !wdev_id_set) || 3219 ifidx == bss->ifindex || 3220 (wdev_id_set && bss->wdev_id_set && 3221 wdev_id == bss->wdev_id)) { 3222 do_process_drv_event(bss, gnlh->cmd, tb); 3223 return NL_SKIP; 3224 } 3225 } 3226 } 3227 3228 return NL_SKIP; 3229} 3230 3231 3232static int process_bss_event(struct nl_msg *msg, void *arg) 3233{ 3234 struct i802_bss *bss = arg; 3235 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3236 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3237 3238 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3239 genlmsg_attrlen(gnlh, 0), NULL); 3240 3241 wpa_printf(MSG_DEBUG, "nl80211: BSS Event %d (%s) received for %s", 3242 gnlh->cmd, nl80211_command_to_string(gnlh->cmd), 3243 bss->ifname); 3244 3245 switch (gnlh->cmd) { 3246 case NL80211_CMD_FRAME: 3247 case NL80211_CMD_FRAME_TX_STATUS: 3248 mlme_event(bss, gnlh->cmd, tb[NL80211_ATTR_FRAME], 3249 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 3250 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 3251 tb[NL80211_ATTR_COOKIE], 3252 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 3253 break; 3254 case NL80211_CMD_UNEXPECTED_FRAME: 3255 nl80211_spurious_frame(bss, tb, 0); 3256 break; 3257 case NL80211_CMD_UNEXPECTED_4ADDR_FRAME: 3258 nl80211_spurious_frame(bss, tb, 1); 3259 break; 3260 default: 3261 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event " 3262 "(cmd=%d)", gnlh->cmd); 3263 break; 3264 } 3265 3266 return NL_SKIP; 3267} 3268 3269 3270static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx, 3271 void *handle) 3272{ 3273 struct nl_cb *cb = eloop_ctx; 3274 int res; 3275 3276 wpa_printf(MSG_MSGDUMP, "nl80211: Event message available"); 3277 3278 res = nl_recvmsgs(handle, cb); 3279 if (res) { 3280 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d", 3281 __func__, res); 3282 } 3283} 3284 3285 3286/** 3287 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain 3288 * @priv: driver_nl80211 private data 3289 * @alpha2_arg: country to which to switch to 3290 * Returns: 0 on success, -1 on failure 3291 * 3292 * This asks nl80211 to set the regulatory domain for given 3293 * country ISO / IEC alpha2. 3294 */ 3295static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg) 3296{ 3297 struct i802_bss *bss = priv; 3298 struct wpa_driver_nl80211_data *drv = bss->drv; 3299 char alpha2[3]; 3300 struct nl_msg *msg; 3301 3302 msg = nlmsg_alloc(); 3303 if (!msg) 3304 return -ENOMEM; 3305 3306 alpha2[0] = alpha2_arg[0]; 3307 alpha2[1] = alpha2_arg[1]; 3308 alpha2[2] = '\0'; 3309 3310 nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG); 3311 3312 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2); 3313 if (send_and_recv_msgs(drv, msg, NULL, NULL)) 3314 return -EINVAL; 3315 return 0; 3316nla_put_failure: 3317 nlmsg_free(msg); 3318 return -EINVAL; 3319} 3320 3321 3322static int nl80211_get_country(struct nl_msg *msg, void *arg) 3323{ 3324 char *alpha2 = arg; 3325 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 3326 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3327 3328 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3329 genlmsg_attrlen(gnlh, 0), NULL); 3330 if (!tb_msg[NL80211_ATTR_REG_ALPHA2]) { 3331 wpa_printf(MSG_DEBUG, "nl80211: No country information available"); 3332 return NL_SKIP; 3333 } 3334 os_strlcpy(alpha2, nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]), 3); 3335 return NL_SKIP; 3336} 3337 3338 3339static int wpa_driver_nl80211_get_country(void *priv, char *alpha2) 3340{ 3341 struct i802_bss *bss = priv; 3342 struct wpa_driver_nl80211_data *drv = bss->drv; 3343 struct nl_msg *msg; 3344 int ret; 3345 3346 msg = nlmsg_alloc(); 3347 if (!msg) 3348 return -ENOMEM; 3349 3350 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 3351 alpha2[0] = '\0'; 3352 ret = send_and_recv_msgs(drv, msg, nl80211_get_country, alpha2); 3353 if (!alpha2[0]) 3354 ret = -1; 3355 3356 return ret; 3357} 3358 3359 3360static int protocol_feature_handler(struct nl_msg *msg, void *arg) 3361{ 3362 u32 *feat = arg; 3363 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 3364 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3365 3366 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3367 genlmsg_attrlen(gnlh, 0), NULL); 3368 3369 if (tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]) 3370 *feat = nla_get_u32(tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]); 3371 3372 return NL_SKIP; 3373} 3374 3375 3376static u32 get_nl80211_protocol_features(struct wpa_driver_nl80211_data *drv) 3377{ 3378 u32 feat = 0; 3379 struct nl_msg *msg; 3380 3381 msg = nlmsg_alloc(); 3382 if (!msg) 3383 goto nla_put_failure; 3384 3385 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_PROTOCOL_FEATURES); 3386 if (send_and_recv_msgs(drv, msg, protocol_feature_handler, &feat) == 0) 3387 return feat; 3388 3389 msg = NULL; 3390nla_put_failure: 3391 nlmsg_free(msg); 3392 return 0; 3393} 3394 3395 3396struct wiphy_info_data { 3397 struct wpa_driver_nl80211_data *drv; 3398 struct wpa_driver_capa *capa; 3399 3400 unsigned int num_multichan_concurrent; 3401 3402 unsigned int error:1; 3403 unsigned int device_ap_sme:1; 3404 unsigned int poll_command_supported:1; 3405 unsigned int data_tx_status:1; 3406 unsigned int monitor_supported:1; 3407 unsigned int auth_supported:1; 3408 unsigned int connect_supported:1; 3409 unsigned int p2p_go_supported:1; 3410 unsigned int p2p_client_supported:1; 3411 unsigned int p2p_concurrent:1; 3412 unsigned int channel_switch_supported:1; 3413 unsigned int set_qos_map_supported:1; 3414}; 3415 3416 3417static unsigned int probe_resp_offload_support(int supp_protocols) 3418{ 3419 unsigned int prot = 0; 3420 3421 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS) 3422 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS; 3423 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2) 3424 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2; 3425 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P) 3426 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P; 3427 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U) 3428 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING; 3429 3430 return prot; 3431} 3432 3433 3434static void wiphy_info_supported_iftypes(struct wiphy_info_data *info, 3435 struct nlattr *tb) 3436{ 3437 struct nlattr *nl_mode; 3438 int i; 3439 3440 if (tb == NULL) 3441 return; 3442 3443 nla_for_each_nested(nl_mode, tb, i) { 3444 switch (nla_type(nl_mode)) { 3445 case NL80211_IFTYPE_AP: 3446 info->capa->flags |= WPA_DRIVER_FLAGS_AP; 3447 break; 3448 case NL80211_IFTYPE_ADHOC: 3449 info->capa->flags |= WPA_DRIVER_FLAGS_IBSS; 3450 break; 3451 case NL80211_IFTYPE_P2P_DEVICE: 3452 info->capa->flags |= 3453 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 3454 break; 3455 case NL80211_IFTYPE_P2P_GO: 3456 info->p2p_go_supported = 1; 3457 break; 3458 case NL80211_IFTYPE_P2P_CLIENT: 3459 info->p2p_client_supported = 1; 3460 break; 3461 case NL80211_IFTYPE_MONITOR: 3462 info->monitor_supported = 1; 3463 break; 3464 } 3465 } 3466} 3467 3468 3469static int wiphy_info_iface_comb_process(struct wiphy_info_data *info, 3470 struct nlattr *nl_combi) 3471{ 3472 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB]; 3473 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT]; 3474 struct nlattr *nl_limit, *nl_mode; 3475 int err, rem_limit, rem_mode; 3476 int combination_has_p2p = 0, combination_has_mgd = 0; 3477 static struct nla_policy 3478 iface_combination_policy[NUM_NL80211_IFACE_COMB] = { 3479 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED }, 3480 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 }, 3481 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG }, 3482 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 }, 3483 [NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 }, 3484 }, 3485 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = { 3486 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED }, 3487 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 }, 3488 }; 3489 3490 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB, 3491 nl_combi, iface_combination_policy); 3492 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] || 3493 !tb_comb[NL80211_IFACE_COMB_MAXNUM] || 3494 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) 3495 return 0; /* broken combination */ 3496 3497 if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS]) 3498 info->capa->flags |= WPA_DRIVER_FLAGS_RADAR; 3499 3500 nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS], 3501 rem_limit) { 3502 err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT, 3503 nl_limit, iface_limit_policy); 3504 if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES]) 3505 return 0; /* broken combination */ 3506 3507 nla_for_each_nested(nl_mode, 3508 tb_limit[NL80211_IFACE_LIMIT_TYPES], 3509 rem_mode) { 3510 int ift = nla_type(nl_mode); 3511 if (ift == NL80211_IFTYPE_P2P_GO || 3512 ift == NL80211_IFTYPE_P2P_CLIENT) 3513 combination_has_p2p = 1; 3514 if (ift == NL80211_IFTYPE_STATION) 3515 combination_has_mgd = 1; 3516 } 3517 if (combination_has_p2p && combination_has_mgd) 3518 break; 3519 } 3520 3521 if (combination_has_p2p && combination_has_mgd) { 3522 unsigned int num_channels = 3523 nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]); 3524 3525 info->p2p_concurrent = 1; 3526 if (info->num_multichan_concurrent < num_channels) 3527 info->num_multichan_concurrent = num_channels; 3528 } 3529 3530 return 0; 3531} 3532 3533 3534static void wiphy_info_iface_comb(struct wiphy_info_data *info, 3535 struct nlattr *tb) 3536{ 3537 struct nlattr *nl_combi; 3538 int rem_combi; 3539 3540 if (tb == NULL) 3541 return; 3542 3543 nla_for_each_nested(nl_combi, tb, rem_combi) { 3544 if (wiphy_info_iface_comb_process(info, nl_combi) > 0) 3545 break; 3546 } 3547} 3548 3549 3550static void wiphy_info_supp_cmds(struct wiphy_info_data *info, 3551 struct nlattr *tb) 3552{ 3553 struct nlattr *nl_cmd; 3554 int i; 3555 3556 if (tb == NULL) 3557 return; 3558 3559 nla_for_each_nested(nl_cmd, tb, i) { 3560 switch (nla_get_u32(nl_cmd)) { 3561 case NL80211_CMD_AUTHENTICATE: 3562 info->auth_supported = 1; 3563 break; 3564 case NL80211_CMD_CONNECT: 3565 info->connect_supported = 1; 3566 break; 3567 case NL80211_CMD_START_SCHED_SCAN: 3568 info->capa->sched_scan_supported = 1; 3569 break; 3570 case NL80211_CMD_PROBE_CLIENT: 3571 info->poll_command_supported = 1; 3572 break; 3573 case NL80211_CMD_CHANNEL_SWITCH: 3574 info->channel_switch_supported = 1; 3575 break; 3576 case NL80211_CMD_SET_QOS_MAP: 3577 info->set_qos_map_supported = 1; 3578 break; 3579 } 3580 } 3581} 3582 3583 3584static void wiphy_info_cipher_suites(struct wiphy_info_data *info, 3585 struct nlattr *tb) 3586{ 3587 int i, num; 3588 u32 *ciphers; 3589 3590 if (tb == NULL) 3591 return; 3592 3593 num = nla_len(tb) / sizeof(u32); 3594 ciphers = nla_data(tb); 3595 for (i = 0; i < num; i++) { 3596 u32 c = ciphers[i]; 3597 3598 wpa_printf(MSG_DEBUG, "nl80211: Supported cipher %02x-%02x-%02x:%d", 3599 c >> 24, (c >> 16) & 0xff, 3600 (c >> 8) & 0xff, c & 0xff); 3601 switch (c) { 3602 case WLAN_CIPHER_SUITE_CCMP_256: 3603 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP_256; 3604 break; 3605 case WLAN_CIPHER_SUITE_GCMP_256: 3606 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP_256; 3607 break; 3608 case WLAN_CIPHER_SUITE_CCMP: 3609 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP; 3610 break; 3611 case WLAN_CIPHER_SUITE_GCMP: 3612 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP; 3613 break; 3614 case WLAN_CIPHER_SUITE_TKIP: 3615 info->capa->enc |= WPA_DRIVER_CAPA_ENC_TKIP; 3616 break; 3617 case WLAN_CIPHER_SUITE_WEP104: 3618 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP104; 3619 break; 3620 case WLAN_CIPHER_SUITE_WEP40: 3621 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP40; 3622 break; 3623 case WLAN_CIPHER_SUITE_AES_CMAC: 3624 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP; 3625 break; 3626 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 3627 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_128; 3628 break; 3629 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 3630 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_256; 3631 break; 3632 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 3633 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_CMAC_256; 3634 break; 3635 case WLAN_CIPHER_SUITE_NO_GROUP_ADDR: 3636 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GTK_NOT_USED; 3637 break; 3638 } 3639 } 3640} 3641 3642 3643static void wiphy_info_max_roc(struct wpa_driver_capa *capa, 3644 struct nlattr *tb) 3645{ 3646 if (tb) 3647 capa->max_remain_on_chan = nla_get_u32(tb); 3648} 3649 3650 3651static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls, 3652 struct nlattr *ext_setup) 3653{ 3654 if (tdls == NULL) 3655 return; 3656 3657 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported"); 3658 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT; 3659 3660 if (ext_setup) { 3661 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup"); 3662 capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP; 3663 } 3664} 3665 3666 3667static void wiphy_info_feature_flags(struct wiphy_info_data *info, 3668 struct nlattr *tb) 3669{ 3670 u32 flags; 3671 struct wpa_driver_capa *capa = info->capa; 3672 3673 if (tb == NULL) 3674 return; 3675 3676 flags = nla_get_u32(tb); 3677 3678 if (flags & NL80211_FEATURE_SK_TX_STATUS) 3679 info->data_tx_status = 1; 3680 3681 if (flags & NL80211_FEATURE_INACTIVITY_TIMER) 3682 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER; 3683 3684 if (flags & NL80211_FEATURE_SAE) 3685 capa->flags |= WPA_DRIVER_FLAGS_SAE; 3686 3687 if (flags & NL80211_FEATURE_NEED_OBSS_SCAN) 3688 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN; 3689 3690 if (flags & NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE) 3691 capa->flags |= WPA_DRIVER_FLAGS_HT_2040_COEX; 3692} 3693 3694 3695static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa, 3696 struct nlattr *tb) 3697{ 3698 u32 protocols; 3699 3700 if (tb == NULL) 3701 return; 3702 3703 protocols = nla_get_u32(tb); 3704 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP " 3705 "mode"); 3706 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD; 3707 capa->probe_resp_offloads = probe_resp_offload_support(protocols); 3708} 3709 3710 3711static void wiphy_info_wowlan_triggers(struct wpa_driver_capa *capa, 3712 struct nlattr *tb) 3713{ 3714 struct nlattr *triggers[MAX_NL80211_WOWLAN_TRIG + 1]; 3715 3716 if (tb == NULL) 3717 return; 3718 3719 if (nla_parse_nested(triggers, MAX_NL80211_WOWLAN_TRIG, 3720 tb, NULL)) 3721 return; 3722 3723 if (triggers[NL80211_WOWLAN_TRIG_ANY]) 3724 capa->wowlan_triggers.any = 1; 3725 if (triggers[NL80211_WOWLAN_TRIG_DISCONNECT]) 3726 capa->wowlan_triggers.disconnect = 1; 3727 if (triggers[NL80211_WOWLAN_TRIG_MAGIC_PKT]) 3728 capa->wowlan_triggers.magic_pkt = 1; 3729 if (triggers[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) 3730 capa->wowlan_triggers.gtk_rekey_failure = 1; 3731 if (triggers[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) 3732 capa->wowlan_triggers.eap_identity_req = 1; 3733 if (triggers[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) 3734 capa->wowlan_triggers.four_way_handshake = 1; 3735 if (triggers[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) 3736 capa->wowlan_triggers.rfkill_release = 1; 3737} 3738 3739 3740static int wiphy_info_handler(struct nl_msg *msg, void *arg) 3741{ 3742 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3743 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3744 struct wiphy_info_data *info = arg; 3745 struct wpa_driver_capa *capa = info->capa; 3746 struct wpa_driver_nl80211_data *drv = info->drv; 3747 3748 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3749 genlmsg_attrlen(gnlh, 0), NULL); 3750 3751 if (tb[NL80211_ATTR_WIPHY_NAME]) 3752 os_strlcpy(drv->phyname, 3753 nla_get_string(tb[NL80211_ATTR_WIPHY_NAME]), 3754 sizeof(drv->phyname)); 3755 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]) 3756 capa->max_scan_ssids = 3757 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]); 3758 3759 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]) 3760 capa->max_sched_scan_ssids = 3761 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]); 3762 3763 if (tb[NL80211_ATTR_MAX_MATCH_SETS]) 3764 capa->max_match_sets = 3765 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]); 3766 3767 if (tb[NL80211_ATTR_MAC_ACL_MAX]) 3768 capa->max_acl_mac_addrs = 3769 nla_get_u8(tb[NL80211_ATTR_MAC_ACL_MAX]); 3770 3771 wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]); 3772 wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]); 3773 wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]); 3774 wiphy_info_cipher_suites(info, tb[NL80211_ATTR_CIPHER_SUITES]); 3775 3776 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) { 3777 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based " 3778 "off-channel TX"); 3779 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX; 3780 } 3781 3782 if (tb[NL80211_ATTR_ROAM_SUPPORT]) { 3783 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming"); 3784 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION; 3785 } 3786 3787 wiphy_info_max_roc(capa, 3788 tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]); 3789 3790 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD]) 3791 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD; 3792 3793 wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT], 3794 tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]); 3795 3796 if (tb[NL80211_ATTR_DEVICE_AP_SME]) 3797 info->device_ap_sme = 1; 3798 3799 wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]); 3800 wiphy_info_probe_resp_offload(capa, 3801 tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]); 3802 3803 if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] && 3804 drv->extended_capa == NULL) { 3805 drv->extended_capa = 3806 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3807 if (drv->extended_capa) { 3808 os_memcpy(drv->extended_capa, 3809 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 3810 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3811 drv->extended_capa_len = 3812 nla_len(tb[NL80211_ATTR_EXT_CAPA]); 3813 } 3814 drv->extended_capa_mask = 3815 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3816 if (drv->extended_capa_mask) { 3817 os_memcpy(drv->extended_capa_mask, 3818 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 3819 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3820 } else { 3821 os_free(drv->extended_capa); 3822 drv->extended_capa = NULL; 3823 drv->extended_capa_len = 0; 3824 } 3825 } 3826 3827 if (tb[NL80211_ATTR_VENDOR_DATA]) { 3828 struct nlattr *nl; 3829 int rem; 3830 3831 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_DATA], rem) { 3832 struct nl80211_vendor_cmd_info *vinfo; 3833 if (nla_len(nl) != sizeof(*vinfo)) { 3834 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info"); 3835 continue; 3836 } 3837 vinfo = nla_data(nl); 3838 if (vinfo->subcmd == 3839 QCA_NL80211_VENDOR_SUBCMD_DFS_CAPABILITY) 3840 drv->dfs_vendor_cmd_avail = 1; 3841 3842 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor command: vendor_id=0x%x subcmd=%u", 3843 vinfo->vendor_id, vinfo->subcmd); 3844 } 3845 } 3846 3847 if (tb[NL80211_ATTR_VENDOR_EVENTS]) { 3848 struct nlattr *nl; 3849 int rem; 3850 3851 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_EVENTS], rem) { 3852 struct nl80211_vendor_cmd_info *vinfo; 3853 if (nla_len(nl) != sizeof(*vinfo)) { 3854 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info"); 3855 continue; 3856 } 3857 vinfo = nla_data(nl); 3858 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor event: vendor_id=0x%x subcmd=%u", 3859 vinfo->vendor_id, vinfo->subcmd); 3860 } 3861 } 3862 3863 wiphy_info_wowlan_triggers(capa, 3864 tb[NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED]); 3865 3866 if (tb[NL80211_ATTR_MAX_AP_ASSOC_STA]) 3867 capa->max_stations = 3868 nla_get_u32(tb[NL80211_ATTR_MAX_AP_ASSOC_STA]); 3869 3870 return NL_SKIP; 3871} 3872 3873 3874static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv, 3875 struct wiphy_info_data *info) 3876{ 3877 u32 feat; 3878 struct nl_msg *msg; 3879 3880 os_memset(info, 0, sizeof(*info)); 3881 info->capa = &drv->capa; 3882 info->drv = drv; 3883 3884 msg = nlmsg_alloc(); 3885 if (!msg) 3886 return -1; 3887 3888 feat = get_nl80211_protocol_features(drv); 3889 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 3890 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 3891 else 3892 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 3893 3894 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 3895 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 3896 goto nla_put_failure; 3897 3898 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info)) 3899 return -1; 3900 3901 if (info->auth_supported) 3902 drv->capa.flags |= WPA_DRIVER_FLAGS_SME; 3903 else if (!info->connect_supported) { 3904 wpa_printf(MSG_INFO, "nl80211: Driver does not support " 3905 "authentication/association or connect commands"); 3906 info->error = 1; 3907 } 3908 3909 if (info->p2p_go_supported && info->p2p_client_supported) 3910 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE; 3911 if (info->p2p_concurrent) { 3912 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 3913 "interface (driver advertised support)"); 3914 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 3915 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 3916 } 3917 if (info->num_multichan_concurrent > 1) { 3918 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel " 3919 "concurrent (driver advertised support)"); 3920 drv->capa.num_multichan_concurrent = 3921 info->num_multichan_concurrent; 3922 } 3923 3924 /* default to 5000 since early versions of mac80211 don't set it */ 3925 if (!drv->capa.max_remain_on_chan) 3926 drv->capa.max_remain_on_chan = 5000; 3927 3928 if (info->channel_switch_supported) 3929 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_CSA; 3930 3931 return 0; 3932nla_put_failure: 3933 nlmsg_free(msg); 3934 return -1; 3935} 3936 3937 3938static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv) 3939{ 3940 struct wiphy_info_data info; 3941 if (wpa_driver_nl80211_get_info(drv, &info)) 3942 return -1; 3943 3944 if (info.error) 3945 return -1; 3946 3947 drv->has_capability = 1; 3948 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA | 3949 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK | 3950 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 | 3951 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK; 3952 drv->capa.auth = WPA_DRIVER_AUTH_OPEN | 3953 WPA_DRIVER_AUTH_SHARED | 3954 WPA_DRIVER_AUTH_LEAP; 3955 3956 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES; 3957 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE; 3958 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3959 3960 /* 3961 * As all cfg80211 drivers must support cases where the AP interface is 3962 * removed without the knowledge of wpa_supplicant/hostapd, e.g., in 3963 * case that the user space daemon has crashed, they must be able to 3964 * cleanup all stations and key entries in the AP tear down flow. Thus, 3965 * this flag can/should always be set for cfg80211 drivers. 3966 */ 3967 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT; 3968 3969 if (!info.device_ap_sme) { 3970 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS; 3971 3972 /* 3973 * No AP SME is currently assumed to also indicate no AP MLME 3974 * in the driver/firmware. 3975 */ 3976 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME; 3977 } 3978 3979 drv->device_ap_sme = info.device_ap_sme; 3980 drv->poll_command_supported = info.poll_command_supported; 3981 drv->data_tx_status = info.data_tx_status; 3982 if (info.set_qos_map_supported) 3983 drv->capa.flags |= WPA_DRIVER_FLAGS_QOS_MAPPING; 3984 3985 /* 3986 * If poll command and tx status are supported, mac80211 is new enough 3987 * to have everything we need to not need monitor interfaces. 3988 */ 3989 drv->use_monitor = !info.poll_command_supported || !info.data_tx_status; 3990 3991 if (drv->device_ap_sme && drv->use_monitor) { 3992 /* 3993 * Non-mac80211 drivers may not support monitor interface. 3994 * Make sure we do not get stuck with incorrect capability here 3995 * by explicitly testing this. 3996 */ 3997 if (!info.monitor_supported) { 3998 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor " 3999 "with device_ap_sme since no monitor mode " 4000 "support detected"); 4001 drv->use_monitor = 0; 4002 } 4003 } 4004 4005 /* 4006 * If we aren't going to use monitor interfaces, but the 4007 * driver doesn't support data TX status, we won't get TX 4008 * status for EAPOL frames. 4009 */ 4010 if (!drv->use_monitor && !info.data_tx_status) 4011 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 4012 4013 return 0; 4014} 4015 4016 4017#ifdef ANDROID 4018static int android_genl_ctrl_resolve(struct nl_handle *handle, 4019 const char *name) 4020{ 4021 /* 4022 * Android ICS has very minimal genl_ctrl_resolve() implementation, so 4023 * need to work around that. 4024 */ 4025 struct nl_cache *cache = NULL; 4026 struct genl_family *nl80211 = NULL; 4027 int id = -1; 4028 4029 if (genl_ctrl_alloc_cache(handle, &cache) < 0) { 4030 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic " 4031 "netlink cache"); 4032 goto fail; 4033 } 4034 4035 nl80211 = genl_ctrl_search_by_name(cache, name); 4036 if (nl80211 == NULL) 4037 goto fail; 4038 4039 id = genl_family_get_id(nl80211); 4040 4041fail: 4042 if (nl80211) 4043 genl_family_put(nl80211); 4044 if (cache) 4045 nl_cache_free(cache); 4046 4047 return id; 4048} 4049#define genl_ctrl_resolve android_genl_ctrl_resolve 4050#endif /* ANDROID */ 4051 4052 4053static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global) 4054{ 4055 int ret; 4056 4057 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 4058 if (global->nl_cb == NULL) { 4059 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " 4060 "callbacks"); 4061 return -1; 4062 } 4063 4064 global->nl = nl_create_handle(global->nl_cb, "nl"); 4065 if (global->nl == NULL) 4066 goto err; 4067 4068 global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211"); 4069 if (global->nl80211_id < 0) { 4070 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not " 4071 "found"); 4072 goto err; 4073 } 4074 4075 global->nl_event = nl_create_handle(global->nl_cb, "event"); 4076 if (global->nl_event == NULL) 4077 goto err; 4078 4079 ret = nl_get_multicast_id(global, "nl80211", "scan"); 4080 if (ret >= 0) 4081 ret = nl_socket_add_membership(global->nl_event, ret); 4082 if (ret < 0) { 4083 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 4084 "membership for scan events: %d (%s)", 4085 ret, strerror(-ret)); 4086 goto err; 4087 } 4088 4089 ret = nl_get_multicast_id(global, "nl80211", "mlme"); 4090 if (ret >= 0) 4091 ret = nl_socket_add_membership(global->nl_event, ret); 4092 if (ret < 0) { 4093 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 4094 "membership for mlme events: %d (%s)", 4095 ret, strerror(-ret)); 4096 goto err; 4097 } 4098 4099 ret = nl_get_multicast_id(global, "nl80211", "regulatory"); 4100 if (ret >= 0) 4101 ret = nl_socket_add_membership(global->nl_event, ret); 4102 if (ret < 0) { 4103 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " 4104 "membership for regulatory events: %d (%s)", 4105 ret, strerror(-ret)); 4106 /* Continue without regulatory events */ 4107 } 4108 4109 ret = nl_get_multicast_id(global, "nl80211", "vendor"); 4110 if (ret >= 0) 4111 ret = nl_socket_add_membership(global->nl_event, ret); 4112 if (ret < 0) { 4113 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " 4114 "membership for vendor events: %d (%s)", 4115 ret, strerror(-ret)); 4116 /* Continue without vendor events */ 4117 } 4118 4119 nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 4120 no_seq_check, NULL); 4121 nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 4122 process_global_event, global); 4123 4124 nl80211_register_eloop_read(&global->nl_event, 4125 wpa_driver_nl80211_event_receive, 4126 global->nl_cb); 4127 4128 return 0; 4129 4130err: 4131 nl_destroy_handles(&global->nl_event); 4132 nl_destroy_handles(&global->nl); 4133 nl_cb_put(global->nl_cb); 4134 global->nl_cb = NULL; 4135 return -1; 4136} 4137 4138 4139static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv) 4140{ 4141 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 4142 if (!drv->nl_cb) { 4143 wpa_printf(MSG_ERROR, "nl80211: Failed to alloc cb struct"); 4144 return -1; 4145 } 4146 4147 nl_cb_set(drv->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 4148 no_seq_check, NULL); 4149 nl_cb_set(drv->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 4150 process_drv_event, drv); 4151 4152 return 0; 4153} 4154 4155 4156static void wpa_driver_nl80211_rfkill_blocked(void *ctx) 4157{ 4158 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked"); 4159 /* 4160 * This may be for any interface; use ifdown event to disable 4161 * interface. 4162 */ 4163} 4164 4165 4166static void wpa_driver_nl80211_rfkill_unblocked(void *ctx) 4167{ 4168 struct wpa_driver_nl80211_data *drv = ctx; 4169 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked"); 4170 if (i802_set_iface_flags(drv->first_bss, 1)) { 4171 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP " 4172 "after rfkill unblock"); 4173 return; 4174 } 4175 /* rtnetlink ifup handler will report interface as enabled */ 4176} 4177 4178 4179static void wpa_driver_nl80211_handle_eapol_tx_status(int sock, 4180 void *eloop_ctx, 4181 void *handle) 4182{ 4183 struct wpa_driver_nl80211_data *drv = eloop_ctx; 4184 u8 data[2048]; 4185 struct msghdr msg; 4186 struct iovec entry; 4187 u8 control[512]; 4188 struct cmsghdr *cmsg; 4189 int res, found_ee = 0, found_wifi = 0, acked = 0; 4190 union wpa_event_data event; 4191 4192 memset(&msg, 0, sizeof(msg)); 4193 msg.msg_iov = &entry; 4194 msg.msg_iovlen = 1; 4195 entry.iov_base = data; 4196 entry.iov_len = sizeof(data); 4197 msg.msg_control = &control; 4198 msg.msg_controllen = sizeof(control); 4199 4200 res = recvmsg(sock, &msg, MSG_ERRQUEUE); 4201 /* if error or not fitting 802.3 header, return */ 4202 if (res < 14) 4203 return; 4204 4205 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) 4206 { 4207 if (cmsg->cmsg_level == SOL_SOCKET && 4208 cmsg->cmsg_type == SCM_WIFI_STATUS) { 4209 int *ack; 4210 4211 found_wifi = 1; 4212 ack = (void *)CMSG_DATA(cmsg); 4213 acked = *ack; 4214 } 4215 4216 if (cmsg->cmsg_level == SOL_PACKET && 4217 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) { 4218 struct sock_extended_err *err = 4219 (struct sock_extended_err *)CMSG_DATA(cmsg); 4220 4221 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS) 4222 found_ee = 1; 4223 } 4224 } 4225 4226 if (!found_ee || !found_wifi) 4227 return; 4228 4229 memset(&event, 0, sizeof(event)); 4230 event.eapol_tx_status.dst = data; 4231 event.eapol_tx_status.data = data + 14; 4232 event.eapol_tx_status.data_len = res - 14; 4233 event.eapol_tx_status.ack = acked; 4234 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event); 4235} 4236 4237 4238static int nl80211_init_bss(struct i802_bss *bss) 4239{ 4240 bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 4241 if (!bss->nl_cb) 4242 return -1; 4243 4244 nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 4245 no_seq_check, NULL); 4246 nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 4247 process_bss_event, bss); 4248 4249 return 0; 4250} 4251 4252 4253static void nl80211_destroy_bss(struct i802_bss *bss) 4254{ 4255 nl_cb_put(bss->nl_cb); 4256 bss->nl_cb = NULL; 4257} 4258 4259 4260static void * wpa_driver_nl80211_drv_init(void *ctx, const char *ifname, 4261 void *global_priv, int hostapd, 4262 const u8 *set_addr) 4263{ 4264 struct wpa_driver_nl80211_data *drv; 4265 struct rfkill_config *rcfg; 4266 struct i802_bss *bss; 4267 4268 if (global_priv == NULL) 4269 return NULL; 4270 drv = os_zalloc(sizeof(*drv)); 4271 if (drv == NULL) 4272 return NULL; 4273 drv->global = global_priv; 4274 drv->ctx = ctx; 4275 drv->hostapd = !!hostapd; 4276 drv->eapol_sock = -1; 4277 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int); 4278 drv->if_indices = drv->default_if_indices; 4279 4280 drv->first_bss = os_zalloc(sizeof(*drv->first_bss)); 4281 if (!drv->first_bss) { 4282 os_free(drv); 4283 return NULL; 4284 } 4285 bss = drv->first_bss; 4286 bss->drv = drv; 4287 bss->ctx = ctx; 4288 4289 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname)); 4290 drv->monitor_ifidx = -1; 4291 drv->monitor_sock = -1; 4292 drv->eapol_tx_sock = -1; 4293 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 4294 4295 if (wpa_driver_nl80211_init_nl(drv)) { 4296 os_free(drv); 4297 return NULL; 4298 } 4299 4300 if (nl80211_init_bss(bss)) 4301 goto failed; 4302 4303 rcfg = os_zalloc(sizeof(*rcfg)); 4304 if (rcfg == NULL) 4305 goto failed; 4306 rcfg->ctx = drv; 4307 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname)); 4308 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked; 4309 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked; 4310 drv->rfkill = rfkill_init(rcfg); 4311 if (drv->rfkill == NULL) { 4312 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available"); 4313 os_free(rcfg); 4314 } 4315 4316 if (linux_iface_up(drv->global->ioctl_sock, ifname) > 0) 4317 drv->start_iface_up = 1; 4318 4319 if (wpa_driver_nl80211_finish_drv_init(drv, set_addr, 1)) 4320 goto failed; 4321 4322 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0); 4323 if (drv->eapol_tx_sock < 0) 4324 goto failed; 4325 4326 if (drv->data_tx_status) { 4327 int enabled = 1; 4328 4329 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS, 4330 &enabled, sizeof(enabled)) < 0) { 4331 wpa_printf(MSG_DEBUG, 4332 "nl80211: wifi status sockopt failed\n"); 4333 drv->data_tx_status = 0; 4334 if (!drv->use_monitor) 4335 drv->capa.flags &= 4336 ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 4337 } else { 4338 eloop_register_read_sock(drv->eapol_tx_sock, 4339 wpa_driver_nl80211_handle_eapol_tx_status, 4340 drv, NULL); 4341 } 4342 } 4343 4344 if (drv->global) { 4345 dl_list_add(&drv->global->interfaces, &drv->list); 4346 drv->in_interface_list = 1; 4347 } 4348 4349 return bss; 4350 4351failed: 4352 wpa_driver_nl80211_deinit(bss); 4353 return NULL; 4354} 4355 4356 4357/** 4358 * wpa_driver_nl80211_init - Initialize nl80211 driver interface 4359 * @ctx: context to be used when calling wpa_supplicant functions, 4360 * e.g., wpa_supplicant_event() 4361 * @ifname: interface name, e.g., wlan0 4362 * @global_priv: private driver global data from global_init() 4363 * Returns: Pointer to private data, %NULL on failure 4364 */ 4365static void * wpa_driver_nl80211_init(void *ctx, const char *ifname, 4366 void *global_priv) 4367{ 4368 return wpa_driver_nl80211_drv_init(ctx, ifname, global_priv, 0, NULL); 4369} 4370 4371 4372static int nl80211_register_frame(struct i802_bss *bss, 4373 struct nl_handle *nl_handle, 4374 u16 type, const u8 *match, size_t match_len) 4375{ 4376 struct wpa_driver_nl80211_data *drv = bss->drv; 4377 struct nl_msg *msg; 4378 int ret = -1; 4379 char buf[30]; 4380 4381 msg = nlmsg_alloc(); 4382 if (!msg) 4383 return -1; 4384 4385 buf[0] = '\0'; 4386 wpa_snprintf_hex(buf, sizeof(buf), match, match_len); 4387 wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x nl_handle=%p match=%s", 4388 type, nl_handle, buf); 4389 4390 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION); 4391 4392 if (nl80211_set_iface_id(msg, bss) < 0) 4393 goto nla_put_failure; 4394 4395 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type); 4396 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match); 4397 4398 ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL); 4399 msg = NULL; 4400 if (ret) { 4401 wpa_printf(MSG_DEBUG, "nl80211: Register frame command " 4402 "failed (type=%u): ret=%d (%s)", 4403 type, ret, strerror(-ret)); 4404 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", 4405 match, match_len); 4406 goto nla_put_failure; 4407 } 4408 ret = 0; 4409nla_put_failure: 4410 nlmsg_free(msg); 4411 return ret; 4412} 4413 4414 4415static int nl80211_alloc_mgmt_handle(struct i802_bss *bss) 4416{ 4417 struct wpa_driver_nl80211_data *drv = bss->drv; 4418 4419 if (bss->nl_mgmt) { 4420 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting " 4421 "already on! (nl_mgmt=%p)", bss->nl_mgmt); 4422 return -1; 4423 } 4424 4425 bss->nl_mgmt = nl_create_handle(drv->nl_cb, "mgmt"); 4426 if (bss->nl_mgmt == NULL) 4427 return -1; 4428 4429 return 0; 4430} 4431 4432 4433static void nl80211_mgmt_handle_register_eloop(struct i802_bss *bss) 4434{ 4435 nl80211_register_eloop_read(&bss->nl_mgmt, 4436 wpa_driver_nl80211_event_receive, 4437 bss->nl_cb); 4438} 4439 4440 4441static int nl80211_register_action_frame(struct i802_bss *bss, 4442 const u8 *match, size_t match_len) 4443{ 4444 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4); 4445 return nl80211_register_frame(bss, bss->nl_mgmt, 4446 type, match, match_len); 4447} 4448 4449 4450static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss) 4451{ 4452 struct wpa_driver_nl80211_data *drv = bss->drv; 4453 int ret = 0; 4454 4455 if (nl80211_alloc_mgmt_handle(bss)) 4456 return -1; 4457 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP " 4458 "handle %p", bss->nl_mgmt); 4459 4460 if (drv->nlmode == NL80211_IFTYPE_ADHOC) { 4461 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_AUTH << 4); 4462 4463 /* register for any AUTH message */ 4464 nl80211_register_frame(bss, bss->nl_mgmt, type, NULL, 0); 4465 } 4466 4467#ifdef CONFIG_INTERWORKING 4468 /* QoS Map Configure */ 4469 if (nl80211_register_action_frame(bss, (u8 *) "\x01\x04", 2) < 0) 4470 ret = -1; 4471#endif /* CONFIG_INTERWORKING */ 4472#if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING) 4473 /* GAS Initial Request */ 4474 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0) 4475 ret = -1; 4476 /* GAS Initial Response */ 4477 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0) 4478 ret = -1; 4479 /* GAS Comeback Request */ 4480 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0) 4481 ret = -1; 4482 /* GAS Comeback Response */ 4483 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0) 4484 ret = -1; 4485 /* Protected GAS Initial Request */ 4486 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0a", 2) < 0) 4487 ret = -1; 4488 /* Protected GAS Initial Response */ 4489 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0b", 2) < 0) 4490 ret = -1; 4491 /* Protected GAS Comeback Request */ 4492 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0c", 2) < 0) 4493 ret = -1; 4494 /* Protected GAS Comeback Response */ 4495 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0d", 2) < 0) 4496 ret = -1; 4497#endif /* CONFIG_P2P || CONFIG_INTERWORKING */ 4498#ifdef CONFIG_P2P 4499 /* P2P Public Action */ 4500 if (nl80211_register_action_frame(bss, 4501 (u8 *) "\x04\x09\x50\x6f\x9a\x09", 4502 6) < 0) 4503 ret = -1; 4504 /* P2P Action */ 4505 if (nl80211_register_action_frame(bss, 4506 (u8 *) "\x7f\x50\x6f\x9a\x09", 4507 5) < 0) 4508 ret = -1; 4509#endif /* CONFIG_P2P */ 4510#ifdef CONFIG_IEEE80211W 4511 /* SA Query Response */ 4512 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0) 4513 ret = -1; 4514#endif /* CONFIG_IEEE80211W */ 4515#ifdef CONFIG_TDLS 4516 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) { 4517 /* TDLS Discovery Response */ 4518 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) < 4519 0) 4520 ret = -1; 4521 } 4522#endif /* CONFIG_TDLS */ 4523 4524 /* FT Action frames */ 4525 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0) 4526 ret = -1; 4527 else 4528 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT | 4529 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK; 4530 4531 /* WNM - BSS Transition Management Request */ 4532 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0) 4533 ret = -1; 4534 /* WNM-Sleep Mode Response */ 4535 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x11", 2) < 0) 4536 ret = -1; 4537 4538#ifdef CONFIG_HS20 4539 /* WNM-Notification */ 4540 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x1a", 2) < 0) 4541 return -1; 4542#endif /* CONFIG_HS20 */ 4543 4544 nl80211_mgmt_handle_register_eloop(bss); 4545 4546 return ret; 4547} 4548 4549 4550static int nl80211_register_spurious_class3(struct i802_bss *bss) 4551{ 4552 struct wpa_driver_nl80211_data *drv = bss->drv; 4553 struct nl_msg *msg; 4554 int ret = -1; 4555 4556 msg = nlmsg_alloc(); 4557 if (!msg) 4558 return -1; 4559 4560 nl80211_cmd(drv, msg, 0, NL80211_CMD_UNEXPECTED_FRAME); 4561 4562 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 4563 4564 ret = send_and_recv(drv->global, bss->nl_mgmt, msg, NULL, NULL); 4565 msg = NULL; 4566 if (ret) { 4567 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 " 4568 "failed: ret=%d (%s)", 4569 ret, strerror(-ret)); 4570 goto nla_put_failure; 4571 } 4572 ret = 0; 4573nla_put_failure: 4574 nlmsg_free(msg); 4575 return ret; 4576} 4577 4578 4579static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss) 4580{ 4581 static const int stypes[] = { 4582 WLAN_FC_STYPE_AUTH, 4583 WLAN_FC_STYPE_ASSOC_REQ, 4584 WLAN_FC_STYPE_REASSOC_REQ, 4585 WLAN_FC_STYPE_DISASSOC, 4586 WLAN_FC_STYPE_DEAUTH, 4587 WLAN_FC_STYPE_ACTION, 4588 WLAN_FC_STYPE_PROBE_REQ, 4589/* Beacon doesn't work as mac80211 doesn't currently allow 4590 * it, but it wouldn't really be the right thing anyway as 4591 * it isn't per interface ... maybe just dump the scan 4592 * results periodically for OLBC? 4593 */ 4594 /* WLAN_FC_STYPE_BEACON, */ 4595 }; 4596 unsigned int i; 4597 4598 if (nl80211_alloc_mgmt_handle(bss)) 4599 return -1; 4600 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 4601 "handle %p", bss->nl_mgmt); 4602 4603 for (i = 0; i < ARRAY_SIZE(stypes); i++) { 4604 if (nl80211_register_frame(bss, bss->nl_mgmt, 4605 (WLAN_FC_TYPE_MGMT << 2) | 4606 (stypes[i] << 4), 4607 NULL, 0) < 0) { 4608 goto out_err; 4609 } 4610 } 4611 4612 if (nl80211_register_spurious_class3(bss)) 4613 goto out_err; 4614 4615 if (nl80211_get_wiphy_data_ap(bss) == NULL) 4616 goto out_err; 4617 4618 nl80211_mgmt_handle_register_eloop(bss); 4619 return 0; 4620 4621out_err: 4622 nl_destroy_handles(&bss->nl_mgmt); 4623 return -1; 4624} 4625 4626 4627static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss) 4628{ 4629 if (nl80211_alloc_mgmt_handle(bss)) 4630 return -1; 4631 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 4632 "handle %p (device SME)", bss->nl_mgmt); 4633 4634 if (nl80211_register_frame(bss, bss->nl_mgmt, 4635 (WLAN_FC_TYPE_MGMT << 2) | 4636 (WLAN_FC_STYPE_ACTION << 4), 4637 NULL, 0) < 0) 4638 goto out_err; 4639 4640 nl80211_mgmt_handle_register_eloop(bss); 4641 return 0; 4642 4643out_err: 4644 nl_destroy_handles(&bss->nl_mgmt); 4645 return -1; 4646} 4647 4648 4649static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason) 4650{ 4651 if (bss->nl_mgmt == NULL) 4652 return; 4653 wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p " 4654 "(%s)", bss->nl_mgmt, reason); 4655 nl80211_destroy_eloop_handle(&bss->nl_mgmt); 4656 4657 nl80211_put_wiphy_data_ap(bss); 4658} 4659 4660 4661static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx) 4662{ 4663 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL); 4664} 4665 4666 4667static void nl80211_del_p2pdev(struct i802_bss *bss) 4668{ 4669 struct wpa_driver_nl80211_data *drv = bss->drv; 4670 struct nl_msg *msg; 4671 int ret; 4672 4673 msg = nlmsg_alloc(); 4674 if (!msg) 4675 return; 4676 4677 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 4678 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 4679 4680 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4681 msg = NULL; 4682 4683 wpa_printf(MSG_DEBUG, "nl80211: Delete P2P Device %s (0x%llx): %s", 4684 bss->ifname, (long long unsigned int) bss->wdev_id, 4685 strerror(-ret)); 4686 4687nla_put_failure: 4688 nlmsg_free(msg); 4689} 4690 4691 4692static int nl80211_set_p2pdev(struct i802_bss *bss, int start) 4693{ 4694 struct wpa_driver_nl80211_data *drv = bss->drv; 4695 struct nl_msg *msg; 4696 int ret = -1; 4697 4698 msg = nlmsg_alloc(); 4699 if (!msg) 4700 return -1; 4701 4702 if (start) 4703 nl80211_cmd(drv, msg, 0, NL80211_CMD_START_P2P_DEVICE); 4704 else 4705 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_P2P_DEVICE); 4706 4707 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 4708 4709 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4710 msg = NULL; 4711 4712 wpa_printf(MSG_DEBUG, "nl80211: %s P2P Device %s (0x%llx): %s", 4713 start ? "Start" : "Stop", 4714 bss->ifname, (long long unsigned int) bss->wdev_id, 4715 strerror(-ret)); 4716 4717nla_put_failure: 4718 nlmsg_free(msg); 4719 return ret; 4720} 4721 4722 4723static int i802_set_iface_flags(struct i802_bss *bss, int up) 4724{ 4725 enum nl80211_iftype nlmode; 4726 4727 nlmode = nl80211_get_ifmode(bss); 4728 if (nlmode != NL80211_IFTYPE_P2P_DEVICE) { 4729 return linux_set_iface_flags(bss->drv->global->ioctl_sock, 4730 bss->ifname, up); 4731 } 4732 4733 /* P2P Device has start/stop which is equivalent */ 4734 return nl80211_set_p2pdev(bss, up); 4735} 4736 4737 4738static int 4739wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv, 4740 const u8 *set_addr, int first) 4741{ 4742 struct i802_bss *bss = drv->first_bss; 4743 int send_rfkill_event = 0; 4744 enum nl80211_iftype nlmode; 4745 4746 drv->ifindex = if_nametoindex(bss->ifname); 4747 bss->ifindex = drv->ifindex; 4748 bss->wdev_id = drv->global->if_add_wdevid; 4749 bss->wdev_id_set = drv->global->if_add_wdevid_set; 4750 4751 bss->if_dynamic = drv->ifindex == drv->global->if_add_ifindex; 4752 bss->if_dynamic = bss->if_dynamic || drv->global->if_add_wdevid_set; 4753 drv->global->if_add_wdevid_set = 0; 4754 4755 if (wpa_driver_nl80211_capa(drv)) 4756 return -1; 4757 4758 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s", 4759 bss->ifname, drv->phyname); 4760 4761 if (set_addr && 4762 (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0) || 4763 linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 4764 set_addr))) 4765 return -1; 4766 4767 if (first && nl80211_get_ifmode(bss) == NL80211_IFTYPE_AP) 4768 drv->start_mode_ap = 1; 4769 4770 if (drv->hostapd) 4771 nlmode = NL80211_IFTYPE_AP; 4772 else if (bss->if_dynamic) 4773 nlmode = nl80211_get_ifmode(bss); 4774 else 4775 nlmode = NL80211_IFTYPE_STATION; 4776 4777 if (wpa_driver_nl80211_set_mode(bss, nlmode) < 0) { 4778 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver mode"); 4779 return -1; 4780 } 4781 4782 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) 4783 nl80211_get_macaddr(bss); 4784 4785 if (!rfkill_is_blocked(drv->rfkill)) { 4786 int ret = i802_set_iface_flags(bss, 1); 4787 if (ret) { 4788 wpa_printf(MSG_ERROR, "nl80211: Could not set " 4789 "interface '%s' UP", bss->ifname); 4790 return ret; 4791 } 4792 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) 4793 return ret; 4794 } else { 4795 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable " 4796 "interface '%s' due to rfkill", bss->ifname); 4797 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) 4798 return 0; 4799 drv->if_disabled = 1; 4800 send_rfkill_event = 1; 4801 } 4802 4803 if (!drv->hostapd) 4804 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 4805 1, IF_OPER_DORMANT); 4806 4807 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 4808 bss->addr)) 4809 return -1; 4810 4811 if (send_rfkill_event) { 4812 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill, 4813 drv, drv->ctx); 4814 } 4815 4816 return 0; 4817} 4818 4819 4820static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv) 4821{ 4822 struct nl_msg *msg; 4823 4824 msg = nlmsg_alloc(); 4825 if (!msg) 4826 return -ENOMEM; 4827 4828 wpa_printf(MSG_DEBUG, "nl80211: Remove beacon (ifindex=%d)", 4829 drv->ifindex); 4830 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON); 4831 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4832 4833 return send_and_recv_msgs(drv, msg, NULL, NULL); 4834 nla_put_failure: 4835 nlmsg_free(msg); 4836 return -ENOBUFS; 4837} 4838 4839 4840/** 4841 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface 4842 * @bss: Pointer to private nl80211 data from wpa_driver_nl80211_init() 4843 * 4844 * Shut down driver interface and processing of driver events. Free 4845 * private data buffer if one was allocated in wpa_driver_nl80211_init(). 4846 */ 4847static void wpa_driver_nl80211_deinit(struct i802_bss *bss) 4848{ 4849 struct wpa_driver_nl80211_data *drv = bss->drv; 4850 4851 bss->in_deinit = 1; 4852 if (drv->data_tx_status) 4853 eloop_unregister_read_sock(drv->eapol_tx_sock); 4854 if (drv->eapol_tx_sock >= 0) 4855 close(drv->eapol_tx_sock); 4856 4857 if (bss->nl_preq) 4858 wpa_driver_nl80211_probe_req_report(bss, 0); 4859 if (bss->added_if_into_bridge) { 4860 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 4861 bss->ifname) < 0) 4862 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 4863 "interface %s from bridge %s: %s", 4864 bss->ifname, bss->brname, strerror(errno)); 4865 } 4866 if (bss->added_bridge) { 4867 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 4868 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 4869 "bridge %s: %s", 4870 bss->brname, strerror(errno)); 4871 } 4872 4873 nl80211_remove_monitor_interface(drv); 4874 4875 if (is_ap_interface(drv->nlmode)) 4876 wpa_driver_nl80211_del_beacon(drv); 4877 4878 if (drv->eapol_sock >= 0) { 4879 eloop_unregister_read_sock(drv->eapol_sock); 4880 close(drv->eapol_sock); 4881 } 4882 4883 if (drv->if_indices != drv->default_if_indices) 4884 os_free(drv->if_indices); 4885 4886 if (drv->disabled_11b_rates) 4887 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 4888 4889 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0, 4890 IF_OPER_UP); 4891 eloop_cancel_timeout(wpa_driver_nl80211_send_rfkill, drv, drv->ctx); 4892 rfkill_deinit(drv->rfkill); 4893 4894 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 4895 4896 if (!drv->start_iface_up) 4897 (void) i802_set_iface_flags(bss, 0); 4898 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) { 4899 if (!drv->hostapd || !drv->start_mode_ap) 4900 wpa_driver_nl80211_set_mode(bss, 4901 NL80211_IFTYPE_STATION); 4902 nl80211_mgmt_unsubscribe(bss, "deinit"); 4903 } else { 4904 nl80211_mgmt_unsubscribe(bss, "deinit"); 4905 nl80211_del_p2pdev(bss); 4906 } 4907 nl_cb_put(drv->nl_cb); 4908 4909 nl80211_destroy_bss(drv->first_bss); 4910 4911 os_free(drv->filter_ssids); 4912 4913 os_free(drv->auth_ie); 4914 4915 if (drv->in_interface_list) 4916 dl_list_del(&drv->list); 4917 4918 os_free(drv->extended_capa); 4919 os_free(drv->extended_capa_mask); 4920 os_free(drv->first_bss); 4921 os_free(drv); 4922} 4923 4924 4925/** 4926 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion 4927 * @eloop_ctx: Driver private data 4928 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init() 4929 * 4930 * This function can be used as registered timeout when starting a scan to 4931 * generate a scan completed event if the driver does not report this. 4932 */ 4933static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx) 4934{ 4935 struct wpa_driver_nl80211_data *drv = eloop_ctx; 4936 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) { 4937 wpa_driver_nl80211_set_mode(drv->first_bss, 4938 drv->ap_scan_as_station); 4939 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 4940 } 4941 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results"); 4942 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL); 4943} 4944 4945 4946static struct nl_msg * 4947nl80211_scan_common(struct wpa_driver_nl80211_data *drv, u8 cmd, 4948 struct wpa_driver_scan_params *params, u64 *wdev_id) 4949{ 4950 struct nl_msg *msg; 4951 size_t i; 4952 4953 msg = nlmsg_alloc(); 4954 if (!msg) 4955 return NULL; 4956 4957 nl80211_cmd(drv, msg, 0, cmd); 4958 4959 if (!wdev_id) 4960 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4961 else 4962 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, *wdev_id); 4963 4964 if (params->num_ssids) { 4965 struct nlattr *ssids; 4966 4967 ssids = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); 4968 if (ssids == NULL) 4969 goto fail; 4970 for (i = 0; i < params->num_ssids; i++) { 4971 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID", 4972 params->ssids[i].ssid, 4973 params->ssids[i].ssid_len); 4974 if (nla_put(msg, i + 1, params->ssids[i].ssid_len, 4975 params->ssids[i].ssid) < 0) 4976 goto fail; 4977 } 4978 nla_nest_end(msg, ssids); 4979 } 4980 4981 if (params->extra_ies) { 4982 wpa_hexdump(MSG_MSGDUMP, "nl80211: Scan extra IEs", 4983 params->extra_ies, params->extra_ies_len); 4984 if (nla_put(msg, NL80211_ATTR_IE, params->extra_ies_len, 4985 params->extra_ies) < 0) 4986 goto fail; 4987 } 4988 4989 if (params->freqs) { 4990 struct nlattr *freqs; 4991 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); 4992 if (freqs == NULL) 4993 goto fail; 4994 for (i = 0; params->freqs[i]; i++) { 4995 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u " 4996 "MHz", params->freqs[i]); 4997 if (nla_put_u32(msg, i + 1, params->freqs[i]) < 0) 4998 goto fail; 4999 } 5000 nla_nest_end(msg, freqs); 5001 } 5002 5003 os_free(drv->filter_ssids); 5004 drv->filter_ssids = params->filter_ssids; 5005 params->filter_ssids = NULL; 5006 drv->num_filter_ssids = params->num_filter_ssids; 5007 5008 if (params->only_new_results) { 5009 wpa_printf(MSG_DEBUG, "nl80211: Add NL80211_SCAN_FLAG_FLUSH"); 5010 NLA_PUT_U32(msg, NL80211_ATTR_SCAN_FLAGS, 5011 NL80211_SCAN_FLAG_FLUSH); 5012 } 5013 5014 return msg; 5015 5016fail: 5017nla_put_failure: 5018 nlmsg_free(msg); 5019 return NULL; 5020} 5021 5022 5023/** 5024 * wpa_driver_nl80211_scan - Request the driver to initiate scan 5025 * @bss: Pointer to private driver data from wpa_driver_nl80211_init() 5026 * @params: Scan parameters 5027 * Returns: 0 on success, -1 on failure 5028 */ 5029static int wpa_driver_nl80211_scan(struct i802_bss *bss, 5030 struct wpa_driver_scan_params *params) 5031{ 5032 struct wpa_driver_nl80211_data *drv = bss->drv; 5033 int ret = -1, timeout; 5034 struct nl_msg *msg = NULL; 5035 5036 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: scan request"); 5037 drv->scan_for_auth = 0; 5038 5039 msg = nl80211_scan_common(drv, NL80211_CMD_TRIGGER_SCAN, params, 5040 bss->wdev_id_set ? &bss->wdev_id : NULL); 5041 if (!msg) 5042 return -1; 5043 5044 if (params->p2p_probe) { 5045 struct nlattr *rates; 5046 5047 wpa_printf(MSG_DEBUG, "nl80211: P2P probe - mask SuppRates"); 5048 5049 rates = nla_nest_start(msg, NL80211_ATTR_SCAN_SUPP_RATES); 5050 if (rates == NULL) 5051 goto nla_put_failure; 5052 5053 /* 5054 * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates 5055 * by masking out everything else apart from the OFDM rates 6, 5056 * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz 5057 * rates are left enabled. 5058 */ 5059 NLA_PUT(msg, NL80211_BAND_2GHZ, 8, 5060 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 5061 nla_nest_end(msg, rates); 5062 5063 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 5064 } 5065 5066 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5067 msg = NULL; 5068 if (ret) { 5069 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d " 5070 "(%s)", ret, strerror(-ret)); 5071 if (drv->hostapd && is_ap_interface(drv->nlmode)) { 5072 enum nl80211_iftype old_mode = drv->nlmode; 5073 5074 /* 5075 * mac80211 does not allow scan requests in AP mode, so 5076 * try to do this in station mode. 5077 */ 5078 if (wpa_driver_nl80211_set_mode( 5079 bss, NL80211_IFTYPE_STATION)) 5080 goto nla_put_failure; 5081 5082 if (wpa_driver_nl80211_scan(bss, params)) { 5083 wpa_driver_nl80211_set_mode(bss, drv->nlmode); 5084 goto nla_put_failure; 5085 } 5086 5087 /* Restore AP mode when processing scan results */ 5088 drv->ap_scan_as_station = old_mode; 5089 ret = 0; 5090 } else 5091 goto nla_put_failure; 5092 } 5093 5094 drv->scan_state = SCAN_REQUESTED; 5095 /* Not all drivers generate "scan completed" wireless event, so try to 5096 * read results after a timeout. */ 5097 timeout = 10; 5098 if (drv->scan_complete_events) { 5099 /* 5100 * The driver seems to deliver events to notify when scan is 5101 * complete, so use longer timeout to avoid race conditions 5102 * with scanning and following association request. 5103 */ 5104 timeout = 30; 5105 } 5106 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d " 5107 "seconds", ret, timeout); 5108 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 5109 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout, 5110 drv, drv->ctx); 5111 5112nla_put_failure: 5113 nlmsg_free(msg); 5114 return ret; 5115} 5116 5117 5118/** 5119 * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan 5120 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 5121 * @params: Scan parameters 5122 * @interval: Interval between scan cycles in milliseconds 5123 * Returns: 0 on success, -1 on failure or if not supported 5124 */ 5125static int wpa_driver_nl80211_sched_scan(void *priv, 5126 struct wpa_driver_scan_params *params, 5127 u32 interval) 5128{ 5129 struct i802_bss *bss = priv; 5130 struct wpa_driver_nl80211_data *drv = bss->drv; 5131 int ret = -1; 5132 struct nl_msg *msg; 5133 size_t i; 5134 5135 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: sched_scan request"); 5136 5137#ifdef ANDROID 5138 if (!drv->capa.sched_scan_supported) 5139 return android_pno_start(bss, params); 5140#endif /* ANDROID */ 5141 5142 msg = nl80211_scan_common(drv, NL80211_CMD_START_SCHED_SCAN, params, 5143 bss->wdev_id_set ? &bss->wdev_id : NULL); 5144 if (!msg) 5145 goto nla_put_failure; 5146 5147 NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval); 5148 5149 if ((drv->num_filter_ssids && 5150 (int) drv->num_filter_ssids <= drv->capa.max_match_sets) || 5151 params->filter_rssi) { 5152 struct nlattr *match_sets; 5153 match_sets = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH); 5154 if (match_sets == NULL) 5155 goto nla_put_failure; 5156 5157 for (i = 0; i < drv->num_filter_ssids; i++) { 5158 struct nlattr *match_set_ssid; 5159 wpa_hexdump_ascii(MSG_MSGDUMP, 5160 "nl80211: Sched scan filter SSID", 5161 drv->filter_ssids[i].ssid, 5162 drv->filter_ssids[i].ssid_len); 5163 5164 match_set_ssid = nla_nest_start(msg, i + 1); 5165 if (match_set_ssid == NULL) 5166 goto nla_put_failure; 5167 NLA_PUT(msg, NL80211_ATTR_SCHED_SCAN_MATCH_SSID, 5168 drv->filter_ssids[i].ssid_len, 5169 drv->filter_ssids[i].ssid); 5170 if (params->filter_rssi) 5171 NLA_PUT_U32(msg, 5172 NL80211_SCHED_SCAN_MATCH_ATTR_RSSI, 5173 params->filter_rssi); 5174 5175 nla_nest_end(msg, match_set_ssid); 5176 } 5177 5178 /* 5179 * Due to backward compatibility code, newer kernels treat this 5180 * matchset (with only an RSSI filter) as the default for all 5181 * other matchsets, unless it's the only one, in which case the 5182 * matchset will actually allow all SSIDs above the RSSI. 5183 */ 5184 if (params->filter_rssi) { 5185 struct nlattr *match_set_rssi; 5186 match_set_rssi = nla_nest_start(msg, 0); 5187 if (match_set_rssi == NULL) 5188 goto nla_put_failure; 5189 NLA_PUT_U32(msg, NL80211_SCHED_SCAN_MATCH_ATTR_RSSI, 5190 params->filter_rssi); 5191 wpa_printf(MSG_MSGDUMP, 5192 "nl80211: Sched scan RSSI filter %d dBm", 5193 params->filter_rssi); 5194 nla_nest_end(msg, match_set_rssi); 5195 } 5196 5197 nla_nest_end(msg, match_sets); 5198 } 5199 5200 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5201 5202 /* TODO: if we get an error here, we should fall back to normal scan */ 5203 5204 msg = NULL; 5205 if (ret) { 5206 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: " 5207 "ret=%d (%s)", ret, strerror(-ret)); 5208 goto nla_put_failure; 5209 } 5210 5211 wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - " 5212 "scan interval %d msec", ret, interval); 5213 5214nla_put_failure: 5215 nlmsg_free(msg); 5216 return ret; 5217} 5218 5219 5220/** 5221 * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan 5222 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 5223 * Returns: 0 on success, -1 on failure or if not supported 5224 */ 5225static int wpa_driver_nl80211_stop_sched_scan(void *priv) 5226{ 5227 struct i802_bss *bss = priv; 5228 struct wpa_driver_nl80211_data *drv = bss->drv; 5229 int ret = 0; 5230 struct nl_msg *msg; 5231 5232#ifdef ANDROID 5233 if (!drv->capa.sched_scan_supported) 5234 return android_pno_stop(bss); 5235#endif /* ANDROID */ 5236 5237 msg = nlmsg_alloc(); 5238 if (!msg) 5239 return -1; 5240 5241 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN); 5242 5243 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5244 5245 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5246 msg = NULL; 5247 if (ret) { 5248 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: " 5249 "ret=%d (%s)", ret, strerror(-ret)); 5250 goto nla_put_failure; 5251 } 5252 5253 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret); 5254 5255nla_put_failure: 5256 nlmsg_free(msg); 5257 return ret; 5258} 5259 5260 5261static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie) 5262{ 5263 const u8 *end, *pos; 5264 5265 if (ies == NULL) 5266 return NULL; 5267 5268 pos = ies; 5269 end = ies + ies_len; 5270 5271 while (pos + 1 < end) { 5272 if (pos + 2 + pos[1] > end) 5273 break; 5274 if (pos[0] == ie) 5275 return pos; 5276 pos += 2 + pos[1]; 5277 } 5278 5279 return NULL; 5280} 5281 5282 5283static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv, 5284 const u8 *ie, size_t ie_len) 5285{ 5286 const u8 *ssid; 5287 size_t i; 5288 5289 if (drv->filter_ssids == NULL) 5290 return 0; 5291 5292 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID); 5293 if (ssid == NULL) 5294 return 1; 5295 5296 for (i = 0; i < drv->num_filter_ssids; i++) { 5297 if (ssid[1] == drv->filter_ssids[i].ssid_len && 5298 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) == 5299 0) 5300 return 0; 5301 } 5302 5303 return 1; 5304} 5305 5306 5307static int bss_info_handler(struct nl_msg *msg, void *arg) 5308{ 5309 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 5310 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 5311 struct nlattr *bss[NL80211_BSS_MAX + 1]; 5312 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = { 5313 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC }, 5314 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 }, 5315 [NL80211_BSS_TSF] = { .type = NLA_U64 }, 5316 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 }, 5317 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 }, 5318 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC }, 5319 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 }, 5320 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 }, 5321 [NL80211_BSS_STATUS] = { .type = NLA_U32 }, 5322 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 }, 5323 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC }, 5324 }; 5325 struct nl80211_bss_info_arg *_arg = arg; 5326 struct wpa_scan_results *res = _arg->res; 5327 struct wpa_scan_res **tmp; 5328 struct wpa_scan_res *r; 5329 const u8 *ie, *beacon_ie; 5330 size_t ie_len, beacon_ie_len; 5331 u8 *pos; 5332 size_t i; 5333 5334 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 5335 genlmsg_attrlen(gnlh, 0), NULL); 5336 if (!tb[NL80211_ATTR_BSS]) 5337 return NL_SKIP; 5338 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS], 5339 bss_policy)) 5340 return NL_SKIP; 5341 if (bss[NL80211_BSS_STATUS]) { 5342 enum nl80211_bss_status status; 5343 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 5344 if (status == NL80211_BSS_STATUS_ASSOCIATED && 5345 bss[NL80211_BSS_FREQUENCY]) { 5346 _arg->assoc_freq = 5347 nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 5348 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz", 5349 _arg->assoc_freq); 5350 } 5351 if (status == NL80211_BSS_STATUS_IBSS_JOINED && 5352 bss[NL80211_BSS_FREQUENCY]) { 5353 _arg->ibss_freq = 5354 nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 5355 wpa_printf(MSG_DEBUG, "nl80211: IBSS-joined on %u MHz", 5356 _arg->ibss_freq); 5357 } 5358 if (status == NL80211_BSS_STATUS_ASSOCIATED && 5359 bss[NL80211_BSS_BSSID]) { 5360 os_memcpy(_arg->assoc_bssid, 5361 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN); 5362 wpa_printf(MSG_DEBUG, "nl80211: Associated with " 5363 MACSTR, MAC2STR(_arg->assoc_bssid)); 5364 } 5365 } 5366 if (!res) 5367 return NL_SKIP; 5368 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) { 5369 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 5370 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 5371 } else { 5372 ie = NULL; 5373 ie_len = 0; 5374 } 5375 if (bss[NL80211_BSS_BEACON_IES]) { 5376 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]); 5377 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]); 5378 } else { 5379 beacon_ie = NULL; 5380 beacon_ie_len = 0; 5381 } 5382 5383 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie, 5384 ie ? ie_len : beacon_ie_len)) 5385 return NL_SKIP; 5386 5387 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len); 5388 if (r == NULL) 5389 return NL_SKIP; 5390 if (bss[NL80211_BSS_BSSID]) 5391 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]), 5392 ETH_ALEN); 5393 if (bss[NL80211_BSS_FREQUENCY]) 5394 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 5395 if (bss[NL80211_BSS_BEACON_INTERVAL]) 5396 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]); 5397 if (bss[NL80211_BSS_CAPABILITY]) 5398 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]); 5399 r->flags |= WPA_SCAN_NOISE_INVALID; 5400 if (bss[NL80211_BSS_SIGNAL_MBM]) { 5401 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]); 5402 r->level /= 100; /* mBm to dBm */ 5403 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID; 5404 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) { 5405 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]); 5406 r->flags |= WPA_SCAN_QUAL_INVALID; 5407 } else 5408 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID; 5409 if (bss[NL80211_BSS_TSF]) 5410 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]); 5411 if (bss[NL80211_BSS_SEEN_MS_AGO]) 5412 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]); 5413 r->ie_len = ie_len; 5414 pos = (u8 *) (r + 1); 5415 if (ie) { 5416 os_memcpy(pos, ie, ie_len); 5417 pos += ie_len; 5418 } 5419 r->beacon_ie_len = beacon_ie_len; 5420 if (beacon_ie) 5421 os_memcpy(pos, beacon_ie, beacon_ie_len); 5422 5423 if (bss[NL80211_BSS_STATUS]) { 5424 enum nl80211_bss_status status; 5425 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 5426 switch (status) { 5427 case NL80211_BSS_STATUS_AUTHENTICATED: 5428 r->flags |= WPA_SCAN_AUTHENTICATED; 5429 break; 5430 case NL80211_BSS_STATUS_ASSOCIATED: 5431 r->flags |= WPA_SCAN_ASSOCIATED; 5432 break; 5433 default: 5434 break; 5435 } 5436 } 5437 5438 /* 5439 * cfg80211 maintains separate BSS table entries for APs if the same 5440 * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does 5441 * not use frequency as a separate key in the BSS table, so filter out 5442 * duplicated entries. Prefer associated BSS entry in such a case in 5443 * order to get the correct frequency into the BSS table. Similarly, 5444 * prefer newer entries over older. 5445 */ 5446 for (i = 0; i < res->num; i++) { 5447 const u8 *s1, *s2; 5448 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0) 5449 continue; 5450 5451 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1), 5452 res->res[i]->ie_len, WLAN_EID_SSID); 5453 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID); 5454 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] || 5455 os_memcmp(s1, s2, 2 + s1[1]) != 0) 5456 continue; 5457 5458 /* Same BSSID,SSID was already included in scan results */ 5459 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result " 5460 "for " MACSTR, MAC2STR(r->bssid)); 5461 5462 if (((r->flags & WPA_SCAN_ASSOCIATED) && 5463 !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) || 5464 r->age < res->res[i]->age) { 5465 os_free(res->res[i]); 5466 res->res[i] = r; 5467 } else 5468 os_free(r); 5469 return NL_SKIP; 5470 } 5471 5472 tmp = os_realloc_array(res->res, res->num + 1, 5473 sizeof(struct wpa_scan_res *)); 5474 if (tmp == NULL) { 5475 os_free(r); 5476 return NL_SKIP; 5477 } 5478 tmp[res->num++] = r; 5479 res->res = tmp; 5480 5481 return NL_SKIP; 5482} 5483 5484 5485static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv, 5486 const u8 *addr) 5487{ 5488 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 5489 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state " 5490 "mismatch (" MACSTR ")", MAC2STR(addr)); 5491 wpa_driver_nl80211_mlme(drv, addr, 5492 NL80211_CMD_DEAUTHENTICATE, 5493 WLAN_REASON_PREV_AUTH_NOT_VALID, 1); 5494 } 5495} 5496 5497 5498static void wpa_driver_nl80211_check_bss_status( 5499 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res) 5500{ 5501 size_t i; 5502 5503 for (i = 0; i < res->num; i++) { 5504 struct wpa_scan_res *r = res->res[i]; 5505 if (r->flags & WPA_SCAN_AUTHENTICATED) { 5506 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 5507 "indicates BSS status with " MACSTR 5508 " as authenticated", 5509 MAC2STR(r->bssid)); 5510 if (is_sta_interface(drv->nlmode) && 5511 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 && 5512 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) != 5513 0) { 5514 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID" 5515 " in local state (auth=" MACSTR 5516 " assoc=" MACSTR ")", 5517 MAC2STR(drv->auth_bssid), 5518 MAC2STR(drv->bssid)); 5519 clear_state_mismatch(drv, r->bssid); 5520 } 5521 } 5522 5523 if (r->flags & WPA_SCAN_ASSOCIATED) { 5524 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 5525 "indicate BSS status with " MACSTR 5526 " as associated", 5527 MAC2STR(r->bssid)); 5528 if (is_sta_interface(drv->nlmode) && 5529 !drv->associated) { 5530 wpa_printf(MSG_DEBUG, "nl80211: Local state " 5531 "(not associated) does not match " 5532 "with BSS state"); 5533 clear_state_mismatch(drv, r->bssid); 5534 } else if (is_sta_interface(drv->nlmode) && 5535 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) != 5536 0) { 5537 wpa_printf(MSG_DEBUG, "nl80211: Local state " 5538 "(associated with " MACSTR ") does " 5539 "not match with BSS state", 5540 MAC2STR(drv->bssid)); 5541 clear_state_mismatch(drv, r->bssid); 5542 clear_state_mismatch(drv, drv->bssid); 5543 } 5544 } 5545 } 5546} 5547 5548 5549static struct wpa_scan_results * 5550nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv) 5551{ 5552 struct nl_msg *msg; 5553 struct wpa_scan_results *res; 5554 int ret; 5555 struct nl80211_bss_info_arg arg; 5556 5557 res = os_zalloc(sizeof(*res)); 5558 if (res == NULL) 5559 return NULL; 5560 msg = nlmsg_alloc(); 5561 if (!msg) 5562 goto nla_put_failure; 5563 5564 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 5565 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 5566 goto nla_put_failure; 5567 5568 arg.drv = drv; 5569 arg.res = res; 5570 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 5571 msg = NULL; 5572 if (ret == 0) { 5573 wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu " 5574 "BSSes)", (unsigned long) res->num); 5575 nl80211_get_noise_for_scan_results(drv, res); 5576 return res; 5577 } 5578 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 5579 "(%s)", ret, strerror(-ret)); 5580nla_put_failure: 5581 nlmsg_free(msg); 5582 wpa_scan_results_free(res); 5583 return NULL; 5584} 5585 5586 5587/** 5588 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results 5589 * @priv: Pointer to private wext data from wpa_driver_nl80211_init() 5590 * Returns: Scan results on success, -1 on failure 5591 */ 5592static struct wpa_scan_results * 5593wpa_driver_nl80211_get_scan_results(void *priv) 5594{ 5595 struct i802_bss *bss = priv; 5596 struct wpa_driver_nl80211_data *drv = bss->drv; 5597 struct wpa_scan_results *res; 5598 5599 res = nl80211_get_scan_results(drv); 5600 if (res) 5601 wpa_driver_nl80211_check_bss_status(drv, res); 5602 return res; 5603} 5604 5605 5606static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv) 5607{ 5608 struct wpa_scan_results *res; 5609 size_t i; 5610 5611 res = nl80211_get_scan_results(drv); 5612 if (res == NULL) { 5613 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results"); 5614 return; 5615 } 5616 5617 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump"); 5618 for (i = 0; i < res->num; i++) { 5619 struct wpa_scan_res *r = res->res[i]; 5620 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s", 5621 (int) i, (int) res->num, MAC2STR(r->bssid), 5622 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "", 5623 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : ""); 5624 } 5625 5626 wpa_scan_results_free(res); 5627} 5628 5629 5630static u32 wpa_alg_to_cipher_suite(enum wpa_alg alg, size_t key_len) 5631{ 5632 switch (alg) { 5633 case WPA_ALG_WEP: 5634 if (key_len == 5) 5635 return WLAN_CIPHER_SUITE_WEP40; 5636 return WLAN_CIPHER_SUITE_WEP104; 5637 case WPA_ALG_TKIP: 5638 return WLAN_CIPHER_SUITE_TKIP; 5639 case WPA_ALG_CCMP: 5640 return WLAN_CIPHER_SUITE_CCMP; 5641 case WPA_ALG_GCMP: 5642 return WLAN_CIPHER_SUITE_GCMP; 5643 case WPA_ALG_CCMP_256: 5644 return WLAN_CIPHER_SUITE_CCMP_256; 5645 case WPA_ALG_GCMP_256: 5646 return WLAN_CIPHER_SUITE_GCMP_256; 5647 case WPA_ALG_IGTK: 5648 return WLAN_CIPHER_SUITE_AES_CMAC; 5649 case WPA_ALG_BIP_GMAC_128: 5650 return WLAN_CIPHER_SUITE_BIP_GMAC_128; 5651 case WPA_ALG_BIP_GMAC_256: 5652 return WLAN_CIPHER_SUITE_BIP_GMAC_256; 5653 case WPA_ALG_BIP_CMAC_256: 5654 return WLAN_CIPHER_SUITE_BIP_CMAC_256; 5655 case WPA_ALG_SMS4: 5656 return WLAN_CIPHER_SUITE_SMS4; 5657 case WPA_ALG_KRK: 5658 return WLAN_CIPHER_SUITE_KRK; 5659 case WPA_ALG_NONE: 5660 case WPA_ALG_PMK: 5661 wpa_printf(MSG_ERROR, "nl80211: Unexpected encryption algorithm %d", 5662 alg); 5663 return 0; 5664 } 5665 5666 wpa_printf(MSG_ERROR, "nl80211: Unsupported encryption algorithm %d", 5667 alg); 5668 return 0; 5669} 5670 5671 5672static u32 wpa_cipher_to_cipher_suite(unsigned int cipher) 5673{ 5674 switch (cipher) { 5675 case WPA_CIPHER_CCMP_256: 5676 return WLAN_CIPHER_SUITE_CCMP_256; 5677 case WPA_CIPHER_GCMP_256: 5678 return WLAN_CIPHER_SUITE_GCMP_256; 5679 case WPA_CIPHER_CCMP: 5680 return WLAN_CIPHER_SUITE_CCMP; 5681 case WPA_CIPHER_GCMP: 5682 return WLAN_CIPHER_SUITE_GCMP; 5683 case WPA_CIPHER_TKIP: 5684 return WLAN_CIPHER_SUITE_TKIP; 5685 case WPA_CIPHER_WEP104: 5686 return WLAN_CIPHER_SUITE_WEP104; 5687 case WPA_CIPHER_WEP40: 5688 return WLAN_CIPHER_SUITE_WEP40; 5689 case WPA_CIPHER_GTK_NOT_USED: 5690 return WLAN_CIPHER_SUITE_NO_GROUP_ADDR; 5691 } 5692 5693 return 0; 5694} 5695 5696 5697static int wpa_cipher_to_cipher_suites(unsigned int ciphers, u32 suites[], 5698 int max_suites) 5699{ 5700 int num_suites = 0; 5701 5702 if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP_256) 5703 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP_256; 5704 if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP_256) 5705 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP_256; 5706 if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP) 5707 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP; 5708 if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP) 5709 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP; 5710 if (num_suites < max_suites && ciphers & WPA_CIPHER_TKIP) 5711 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP; 5712 if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP104) 5713 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104; 5714 if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP40) 5715 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40; 5716 5717 return num_suites; 5718} 5719 5720 5721static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss, 5722 enum wpa_alg alg, const u8 *addr, 5723 int key_idx, int set_tx, 5724 const u8 *seq, size_t seq_len, 5725 const u8 *key, size_t key_len) 5726{ 5727 struct wpa_driver_nl80211_data *drv = bss->drv; 5728 int ifindex; 5729 struct nl_msg *msg; 5730 int ret; 5731 int tdls = 0; 5732 5733 /* Ignore for P2P Device */ 5734 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 5735 return 0; 5736 5737 ifindex = if_nametoindex(ifname); 5738 wpa_printf(MSG_DEBUG, "%s: ifindex=%d (%s) alg=%d addr=%p key_idx=%d " 5739 "set_tx=%d seq_len=%lu key_len=%lu", 5740 __func__, ifindex, ifname, alg, addr, key_idx, set_tx, 5741 (unsigned long) seq_len, (unsigned long) key_len); 5742#ifdef CONFIG_TDLS 5743 if (key_idx == -1) { 5744 key_idx = 0; 5745 tdls = 1; 5746 } 5747#endif /* CONFIG_TDLS */ 5748 5749 msg = nlmsg_alloc(); 5750 if (!msg) 5751 return -ENOMEM; 5752 5753 if (alg == WPA_ALG_NONE) { 5754 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY); 5755 } else { 5756 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY); 5757 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key); 5758 wpa_hexdump_key(MSG_DEBUG, "nl80211: KEY_DATA", key, key_len); 5759 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5760 wpa_alg_to_cipher_suite(alg, key_len)); 5761 } 5762 5763 if (seq && seq_len) { 5764 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq); 5765 wpa_hexdump(MSG_DEBUG, "nl80211: KEY_SEQ", seq, seq_len); 5766 } 5767 5768 if (addr && !is_broadcast_ether_addr(addr)) { 5769 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr)); 5770 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 5771 5772 if (alg != WPA_ALG_WEP && key_idx && !set_tx) { 5773 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK"); 5774 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, 5775 NL80211_KEYTYPE_GROUP); 5776 } 5777 } else if (addr && is_broadcast_ether_addr(addr)) { 5778 struct nlattr *types; 5779 5780 wpa_printf(MSG_DEBUG, " broadcast key"); 5781 5782 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5783 if (!types) 5784 goto nla_put_failure; 5785 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 5786 nla_nest_end(msg, types); 5787 } 5788 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 5789 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5790 5791 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5792 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE) 5793 ret = 0; 5794 if (ret) 5795 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)", 5796 ret, strerror(-ret)); 5797 5798 /* 5799 * If we failed or don't need to set the default TX key (below), 5800 * we're done here. 5801 */ 5802 if (ret || !set_tx || alg == WPA_ALG_NONE || tdls) 5803 return ret; 5804 if (is_ap_interface(drv->nlmode) && addr && 5805 !is_broadcast_ether_addr(addr)) 5806 return ret; 5807 5808 msg = nlmsg_alloc(); 5809 if (!msg) 5810 return -ENOMEM; 5811 5812 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY); 5813 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 5814 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5815 if (alg == WPA_ALG_IGTK) 5816 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT); 5817 else 5818 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT); 5819 if (addr && is_broadcast_ether_addr(addr)) { 5820 struct nlattr *types; 5821 5822 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5823 if (!types) 5824 goto nla_put_failure; 5825 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 5826 nla_nest_end(msg, types); 5827 } else if (addr) { 5828 struct nlattr *types; 5829 5830 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5831 if (!types) 5832 goto nla_put_failure; 5833 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_UNICAST); 5834 nla_nest_end(msg, types); 5835 } 5836 5837 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5838 if (ret == -ENOENT) 5839 ret = 0; 5840 if (ret) 5841 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; " 5842 "err=%d %s)", ret, strerror(-ret)); 5843 return ret; 5844 5845nla_put_failure: 5846 nlmsg_free(msg); 5847 return -ENOBUFS; 5848} 5849 5850 5851static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg, 5852 int key_idx, int defkey, 5853 const u8 *seq, size_t seq_len, 5854 const u8 *key, size_t key_len) 5855{ 5856 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY); 5857 if (!key_attr) 5858 return -1; 5859 5860 if (defkey && alg == WPA_ALG_IGTK) 5861 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT); 5862 else if (defkey) 5863 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 5864 5865 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx); 5866 5867 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5868 wpa_alg_to_cipher_suite(alg, key_len)); 5869 5870 if (seq && seq_len) 5871 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq); 5872 5873 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key); 5874 5875 nla_nest_end(msg, key_attr); 5876 5877 return 0; 5878 nla_put_failure: 5879 return -1; 5880} 5881 5882 5883static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params, 5884 struct nl_msg *msg) 5885{ 5886 int i, privacy = 0; 5887 struct nlattr *nl_keys, *nl_key; 5888 5889 for (i = 0; i < 4; i++) { 5890 if (!params->wep_key[i]) 5891 continue; 5892 privacy = 1; 5893 break; 5894 } 5895 if (params->wps == WPS_MODE_PRIVACY) 5896 privacy = 1; 5897 if (params->pairwise_suite && 5898 params->pairwise_suite != WPA_CIPHER_NONE) 5899 privacy = 1; 5900 5901 if (!privacy) 5902 return 0; 5903 5904 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 5905 5906 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS); 5907 if (!nl_keys) 5908 goto nla_put_failure; 5909 5910 for (i = 0; i < 4; i++) { 5911 if (!params->wep_key[i]) 5912 continue; 5913 5914 nl_key = nla_nest_start(msg, i); 5915 if (!nl_key) 5916 goto nla_put_failure; 5917 5918 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i], 5919 params->wep_key[i]); 5920 if (params->wep_key_len[i] == 5) 5921 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5922 WLAN_CIPHER_SUITE_WEP40); 5923 else 5924 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5925 WLAN_CIPHER_SUITE_WEP104); 5926 5927 NLA_PUT_U8(msg, NL80211_KEY_IDX, i); 5928 5929 if (i == params->wep_tx_keyidx) 5930 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 5931 5932 nla_nest_end(msg, nl_key); 5933 } 5934 nla_nest_end(msg, nl_keys); 5935 5936 return 0; 5937 5938nla_put_failure: 5939 return -ENOBUFS; 5940} 5941 5942 5943static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 5944 const u8 *addr, int cmd, u16 reason_code, 5945 int local_state_change) 5946{ 5947 int ret = -1; 5948 struct nl_msg *msg; 5949 5950 msg = nlmsg_alloc(); 5951 if (!msg) 5952 return -1; 5953 5954 nl80211_cmd(drv, msg, 0, cmd); 5955 5956 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5957 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code); 5958 if (addr) 5959 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 5960 if (local_state_change) 5961 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 5962 5963 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5964 msg = NULL; 5965 if (ret) { 5966 wpa_dbg(drv->ctx, MSG_DEBUG, 5967 "nl80211: MLME command failed: reason=%u ret=%d (%s)", 5968 reason_code, ret, strerror(-ret)); 5969 goto nla_put_failure; 5970 } 5971 ret = 0; 5972 5973nla_put_failure: 5974 nlmsg_free(msg); 5975 return ret; 5976} 5977 5978 5979static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv, 5980 int reason_code) 5981{ 5982 int ret; 5983 5984 wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code); 5985 nl80211_mark_disconnected(drv); 5986 /* Disconnect command doesn't need BSSID - it uses cached value */ 5987 ret = wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT, 5988 reason_code, 0); 5989 /* 5990 * For locally generated disconnect, supplicant already generates a 5991 * DEAUTH event, so ignore the event from NL80211. 5992 */ 5993 drv->ignore_next_local_disconnect = ret == 0; 5994 5995 return ret; 5996} 5997 5998 5999static int wpa_driver_nl80211_deauthenticate(struct i802_bss *bss, 6000 const u8 *addr, int reason_code) 6001{ 6002 struct wpa_driver_nl80211_data *drv = bss->drv; 6003 int ret; 6004 6005 if (drv->nlmode == NL80211_IFTYPE_ADHOC) { 6006 nl80211_mark_disconnected(drv); 6007 return nl80211_leave_ibss(drv); 6008 } 6009 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) 6010 return wpa_driver_nl80211_disconnect(drv, reason_code); 6011 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)", 6012 __func__, MAC2STR(addr), reason_code); 6013 nl80211_mark_disconnected(drv); 6014 ret = wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE, 6015 reason_code, 0); 6016 /* 6017 * For locally generated deauthenticate, supplicant already generates a 6018 * DEAUTH event, so ignore the event from NL80211. 6019 */ 6020 drv->ignore_next_local_deauth = ret == 0; 6021 return ret; 6022} 6023 6024 6025static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv, 6026 struct wpa_driver_auth_params *params) 6027{ 6028 int i; 6029 6030 drv->auth_freq = params->freq; 6031 drv->auth_alg = params->auth_alg; 6032 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx; 6033 drv->auth_local_state_change = params->local_state_change; 6034 drv->auth_p2p = params->p2p; 6035 6036 if (params->bssid) 6037 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN); 6038 else 6039 os_memset(drv->auth_bssid_, 0, ETH_ALEN); 6040 6041 if (params->ssid) { 6042 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len); 6043 drv->auth_ssid_len = params->ssid_len; 6044 } else 6045 drv->auth_ssid_len = 0; 6046 6047 6048 os_free(drv->auth_ie); 6049 drv->auth_ie = NULL; 6050 drv->auth_ie_len = 0; 6051 if (params->ie) { 6052 drv->auth_ie = os_malloc(params->ie_len); 6053 if (drv->auth_ie) { 6054 os_memcpy(drv->auth_ie, params->ie, params->ie_len); 6055 drv->auth_ie_len = params->ie_len; 6056 } 6057 } 6058 6059 for (i = 0; i < 4; i++) { 6060 if (params->wep_key[i] && params->wep_key_len[i] && 6061 params->wep_key_len[i] <= 16) { 6062 os_memcpy(drv->auth_wep_key[i], params->wep_key[i], 6063 params->wep_key_len[i]); 6064 drv->auth_wep_key_len[i] = params->wep_key_len[i]; 6065 } else 6066 drv->auth_wep_key_len[i] = 0; 6067 } 6068} 6069 6070 6071static int wpa_driver_nl80211_authenticate( 6072 struct i802_bss *bss, struct wpa_driver_auth_params *params) 6073{ 6074 struct wpa_driver_nl80211_data *drv = bss->drv; 6075 int ret = -1, i; 6076 struct nl_msg *msg; 6077 enum nl80211_auth_type type; 6078 enum nl80211_iftype nlmode; 6079 int count = 0; 6080 int is_retry; 6081 6082 is_retry = drv->retry_auth; 6083 drv->retry_auth = 0; 6084 drv->ignore_deauth_event = 0; 6085 6086 nl80211_mark_disconnected(drv); 6087 os_memset(drv->auth_bssid, 0, ETH_ALEN); 6088 if (params->bssid) 6089 os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN); 6090 else 6091 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 6092 /* FIX: IBSS mode */ 6093 nlmode = params->p2p ? 6094 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 6095 if (drv->nlmode != nlmode && 6096 wpa_driver_nl80211_set_mode(bss, nlmode) < 0) 6097 return -1; 6098 6099retry: 6100 msg = nlmsg_alloc(); 6101 if (!msg) 6102 return -1; 6103 6104 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)", 6105 drv->ifindex); 6106 6107 nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE); 6108 6109 for (i = 0; i < 4; i++) { 6110 if (!params->wep_key[i]) 6111 continue; 6112 wpa_driver_nl80211_set_key(bss->ifname, bss, WPA_ALG_WEP, 6113 NULL, i, 6114 i == params->wep_tx_keyidx, NULL, 0, 6115 params->wep_key[i], 6116 params->wep_key_len[i]); 6117 if (params->wep_tx_keyidx != i) 6118 continue; 6119 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0, 6120 params->wep_key[i], params->wep_key_len[i])) { 6121 nlmsg_free(msg); 6122 return -1; 6123 } 6124 } 6125 6126 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6127 if (params->bssid) { 6128 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 6129 MAC2STR(params->bssid)); 6130 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 6131 } 6132 if (params->freq) { 6133 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 6134 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 6135 } 6136 if (params->ssid) { 6137 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 6138 params->ssid, params->ssid_len); 6139 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 6140 params->ssid); 6141 } 6142 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len); 6143 if (params->ie) 6144 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie); 6145 if (params->sae_data) { 6146 wpa_hexdump(MSG_DEBUG, " * SAE data", params->sae_data, 6147 params->sae_data_len); 6148 NLA_PUT(msg, NL80211_ATTR_SAE_DATA, params->sae_data_len, 6149 params->sae_data); 6150 } 6151 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 6152 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 6153 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 6154 type = NL80211_AUTHTYPE_SHARED_KEY; 6155 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 6156 type = NL80211_AUTHTYPE_NETWORK_EAP; 6157 else if (params->auth_alg & WPA_AUTH_ALG_FT) 6158 type = NL80211_AUTHTYPE_FT; 6159 else if (params->auth_alg & WPA_AUTH_ALG_SAE) 6160 type = NL80211_AUTHTYPE_SAE; 6161 else 6162 goto nla_put_failure; 6163 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 6164 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 6165 if (params->local_state_change) { 6166 wpa_printf(MSG_DEBUG, " * Local state change only"); 6167 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 6168 } 6169 6170 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6171 msg = NULL; 6172 if (ret) { 6173 wpa_dbg(drv->ctx, MSG_DEBUG, 6174 "nl80211: MLME command failed (auth): ret=%d (%s)", 6175 ret, strerror(-ret)); 6176 count++; 6177 if (ret == -EALREADY && count == 1 && params->bssid && 6178 !params->local_state_change) { 6179 /* 6180 * mac80211 does not currently accept new 6181 * authentication if we are already authenticated. As a 6182 * workaround, force deauthentication and try again. 6183 */ 6184 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication " 6185 "after forced deauthentication"); 6186 drv->ignore_deauth_event = 1; 6187 wpa_driver_nl80211_deauthenticate( 6188 bss, params->bssid, 6189 WLAN_REASON_PREV_AUTH_NOT_VALID); 6190 nlmsg_free(msg); 6191 goto retry; 6192 } 6193 6194 if (ret == -ENOENT && params->freq && !is_retry) { 6195 /* 6196 * cfg80211 has likely expired the BSS entry even 6197 * though it was previously available in our internal 6198 * BSS table. To recover quickly, start a single 6199 * channel scan on the specified channel. 6200 */ 6201 struct wpa_driver_scan_params scan; 6202 int freqs[2]; 6203 6204 os_memset(&scan, 0, sizeof(scan)); 6205 scan.num_ssids = 1; 6206 if (params->ssid) { 6207 scan.ssids[0].ssid = params->ssid; 6208 scan.ssids[0].ssid_len = params->ssid_len; 6209 } 6210 freqs[0] = params->freq; 6211 freqs[1] = 0; 6212 scan.freqs = freqs; 6213 wpa_printf(MSG_DEBUG, "nl80211: Trigger single " 6214 "channel scan to refresh cfg80211 BSS " 6215 "entry"); 6216 ret = wpa_driver_nl80211_scan(bss, &scan); 6217 if (ret == 0) { 6218 nl80211_copy_auth_params(drv, params); 6219 drv->scan_for_auth = 1; 6220 } 6221 } else if (is_retry) { 6222 /* 6223 * Need to indicate this with an event since the return 6224 * value from the retry is not delivered to core code. 6225 */ 6226 union wpa_event_data event; 6227 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry " 6228 "failed"); 6229 os_memset(&event, 0, sizeof(event)); 6230 os_memcpy(event.timeout_event.addr, drv->auth_bssid_, 6231 ETH_ALEN); 6232 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT, 6233 &event); 6234 } 6235 6236 goto nla_put_failure; 6237 } 6238 ret = 0; 6239 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send " 6240 "successfully"); 6241 6242nla_put_failure: 6243 nlmsg_free(msg); 6244 return ret; 6245} 6246 6247 6248static int wpa_driver_nl80211_authenticate_retry( 6249 struct wpa_driver_nl80211_data *drv) 6250{ 6251 struct wpa_driver_auth_params params; 6252 struct i802_bss *bss = drv->first_bss; 6253 int i; 6254 6255 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again"); 6256 6257 os_memset(¶ms, 0, sizeof(params)); 6258 params.freq = drv->auth_freq; 6259 params.auth_alg = drv->auth_alg; 6260 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx; 6261 params.local_state_change = drv->auth_local_state_change; 6262 params.p2p = drv->auth_p2p; 6263 6264 if (!is_zero_ether_addr(drv->auth_bssid_)) 6265 params.bssid = drv->auth_bssid_; 6266 6267 if (drv->auth_ssid_len) { 6268 params.ssid = drv->auth_ssid; 6269 params.ssid_len = drv->auth_ssid_len; 6270 } 6271 6272 params.ie = drv->auth_ie; 6273 params.ie_len = drv->auth_ie_len; 6274 6275 for (i = 0; i < 4; i++) { 6276 if (drv->auth_wep_key_len[i]) { 6277 params.wep_key[i] = drv->auth_wep_key[i]; 6278 params.wep_key_len[i] = drv->auth_wep_key_len[i]; 6279 } 6280 } 6281 6282 drv->retry_auth = 1; 6283 return wpa_driver_nl80211_authenticate(bss, ¶ms); 6284} 6285 6286 6287struct phy_info_arg { 6288 u16 *num_modes; 6289 struct hostapd_hw_modes *modes; 6290 int last_mode, last_chan_idx; 6291}; 6292 6293static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa, 6294 struct nlattr *ampdu_factor, 6295 struct nlattr *ampdu_density, 6296 struct nlattr *mcs_set) 6297{ 6298 if (capa) 6299 mode->ht_capab = nla_get_u16(capa); 6300 6301 if (ampdu_factor) 6302 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03; 6303 6304 if (ampdu_density) 6305 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2; 6306 6307 if (mcs_set && nla_len(mcs_set) >= 16) { 6308 u8 *mcs; 6309 mcs = nla_data(mcs_set); 6310 os_memcpy(mode->mcs_set, mcs, 16); 6311 } 6312} 6313 6314 6315static void phy_info_vht_capa(struct hostapd_hw_modes *mode, 6316 struct nlattr *capa, 6317 struct nlattr *mcs_set) 6318{ 6319 if (capa) 6320 mode->vht_capab = nla_get_u32(capa); 6321 6322 if (mcs_set && nla_len(mcs_set) >= 8) { 6323 u8 *mcs; 6324 mcs = nla_data(mcs_set); 6325 os_memcpy(mode->vht_mcs_set, mcs, 8); 6326 } 6327} 6328 6329 6330static void phy_info_freq(struct hostapd_hw_modes *mode, 6331 struct hostapd_channel_data *chan, 6332 struct nlattr *tb_freq[]) 6333{ 6334 u8 channel; 6335 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]); 6336 chan->flag = 0; 6337 chan->dfs_cac_ms = 0; 6338 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES) 6339 chan->chan = channel; 6340 6341 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) 6342 chan->flag |= HOSTAPD_CHAN_DISABLED; 6343 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IR]) 6344 chan->flag |= HOSTAPD_CHAN_PASSIVE_SCAN | HOSTAPD_CHAN_NO_IBSS; 6345 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR]) 6346 chan->flag |= HOSTAPD_CHAN_RADAR; 6347 6348 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) { 6349 enum nl80211_dfs_state state = 6350 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]); 6351 6352 switch (state) { 6353 case NL80211_DFS_USABLE: 6354 chan->flag |= HOSTAPD_CHAN_DFS_USABLE; 6355 break; 6356 case NL80211_DFS_AVAILABLE: 6357 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE; 6358 break; 6359 case NL80211_DFS_UNAVAILABLE: 6360 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE; 6361 break; 6362 } 6363 } 6364 6365 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME]) { 6366 chan->dfs_cac_ms = nla_get_u32( 6367 tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME]); 6368 } 6369} 6370 6371 6372static int phy_info_freqs(struct phy_info_arg *phy_info, 6373 struct hostapd_hw_modes *mode, struct nlattr *tb) 6374{ 6375 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 6376 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 }, 6377 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG }, 6378 [NL80211_FREQUENCY_ATTR_NO_IR] = { .type = NLA_FLAG }, 6379 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG }, 6380 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 }, 6381 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 }, 6382 }; 6383 int new_channels = 0; 6384 struct hostapd_channel_data *channel; 6385 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1]; 6386 struct nlattr *nl_freq; 6387 int rem_freq, idx; 6388 6389 if (tb == NULL) 6390 return NL_OK; 6391 6392 nla_for_each_nested(nl_freq, tb, rem_freq) { 6393 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 6394 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 6395 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 6396 continue; 6397 new_channels++; 6398 } 6399 6400 channel = os_realloc_array(mode->channels, 6401 mode->num_channels + new_channels, 6402 sizeof(struct hostapd_channel_data)); 6403 if (!channel) 6404 return NL_SKIP; 6405 6406 mode->channels = channel; 6407 mode->num_channels += new_channels; 6408 6409 idx = phy_info->last_chan_idx; 6410 6411 nla_for_each_nested(nl_freq, tb, rem_freq) { 6412 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 6413 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 6414 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 6415 continue; 6416 phy_info_freq(mode, &mode->channels[idx], tb_freq); 6417 idx++; 6418 } 6419 phy_info->last_chan_idx = idx; 6420 6421 return NL_OK; 6422} 6423 6424 6425static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb) 6426{ 6427 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = { 6428 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 }, 6429 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = 6430 { .type = NLA_FLAG }, 6431 }; 6432 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1]; 6433 struct nlattr *nl_rate; 6434 int rem_rate, idx; 6435 6436 if (tb == NULL) 6437 return NL_OK; 6438 6439 nla_for_each_nested(nl_rate, tb, rem_rate) { 6440 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 6441 nla_data(nl_rate), nla_len(nl_rate), 6442 rate_policy); 6443 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 6444 continue; 6445 mode->num_rates++; 6446 } 6447 6448 mode->rates = os_calloc(mode->num_rates, sizeof(int)); 6449 if (!mode->rates) 6450 return NL_SKIP; 6451 6452 idx = 0; 6453 6454 nla_for_each_nested(nl_rate, tb, rem_rate) { 6455 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 6456 nla_data(nl_rate), nla_len(nl_rate), 6457 rate_policy); 6458 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 6459 continue; 6460 mode->rates[idx] = nla_get_u32( 6461 tb_rate[NL80211_BITRATE_ATTR_RATE]); 6462 idx++; 6463 } 6464 6465 return NL_OK; 6466} 6467 6468 6469static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band) 6470{ 6471 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1]; 6472 struct hostapd_hw_modes *mode; 6473 int ret; 6474 6475 if (phy_info->last_mode != nl_band->nla_type) { 6476 mode = os_realloc_array(phy_info->modes, 6477 *phy_info->num_modes + 1, 6478 sizeof(*mode)); 6479 if (!mode) 6480 return NL_SKIP; 6481 phy_info->modes = mode; 6482 6483 mode = &phy_info->modes[*(phy_info->num_modes)]; 6484 os_memset(mode, 0, sizeof(*mode)); 6485 mode->mode = NUM_HOSTAPD_MODES; 6486 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN | 6487 HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN; 6488 6489 /* 6490 * Unsupported VHT MCS stream is defined as value 3, so the VHT 6491 * MCS RX/TX map must be initialized with 0xffff to mark all 8 6492 * possible streams as unsupported. This will be overridden if 6493 * driver advertises VHT support. 6494 */ 6495 mode->vht_mcs_set[0] = 0xff; 6496 mode->vht_mcs_set[1] = 0xff; 6497 mode->vht_mcs_set[4] = 0xff; 6498 mode->vht_mcs_set[5] = 0xff; 6499 6500 *(phy_info->num_modes) += 1; 6501 phy_info->last_mode = nl_band->nla_type; 6502 phy_info->last_chan_idx = 0; 6503 } else 6504 mode = &phy_info->modes[*(phy_info->num_modes) - 1]; 6505 6506 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band), 6507 nla_len(nl_band), NULL); 6508 6509 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA], 6510 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR], 6511 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY], 6512 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]); 6513 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA], 6514 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]); 6515 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]); 6516 if (ret != NL_OK) 6517 return ret; 6518 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]); 6519 if (ret != NL_OK) 6520 return ret; 6521 6522 return NL_OK; 6523} 6524 6525 6526static int phy_info_handler(struct nl_msg *msg, void *arg) 6527{ 6528 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 6529 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 6530 struct phy_info_arg *phy_info = arg; 6531 struct nlattr *nl_band; 6532 int rem_band; 6533 6534 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 6535 genlmsg_attrlen(gnlh, 0), NULL); 6536 6537 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS]) 6538 return NL_SKIP; 6539 6540 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) 6541 { 6542 int res = phy_info_band(phy_info, nl_band); 6543 if (res != NL_OK) 6544 return res; 6545 } 6546 6547 return NL_SKIP; 6548} 6549 6550 6551static struct hostapd_hw_modes * 6552wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes, 6553 u16 *num_modes) 6554{ 6555 u16 m; 6556 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode; 6557 int i, mode11g_idx = -1; 6558 6559 /* heuristic to set up modes */ 6560 for (m = 0; m < *num_modes; m++) { 6561 if (!modes[m].num_channels) 6562 continue; 6563 if (modes[m].channels[0].freq < 4000) { 6564 modes[m].mode = HOSTAPD_MODE_IEEE80211B; 6565 for (i = 0; i < modes[m].num_rates; i++) { 6566 if (modes[m].rates[i] > 200) { 6567 modes[m].mode = HOSTAPD_MODE_IEEE80211G; 6568 break; 6569 } 6570 } 6571 } else if (modes[m].channels[0].freq > 50000) 6572 modes[m].mode = HOSTAPD_MODE_IEEE80211AD; 6573 else 6574 modes[m].mode = HOSTAPD_MODE_IEEE80211A; 6575 } 6576 6577 /* If only 802.11g mode is included, use it to construct matching 6578 * 802.11b mode data. */ 6579 6580 for (m = 0; m < *num_modes; m++) { 6581 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B) 6582 return modes; /* 802.11b already included */ 6583 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G) 6584 mode11g_idx = m; 6585 } 6586 6587 if (mode11g_idx < 0) 6588 return modes; /* 2.4 GHz band not supported at all */ 6589 6590 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes)); 6591 if (nmodes == NULL) 6592 return modes; /* Could not add 802.11b mode */ 6593 6594 mode = &nmodes[*num_modes]; 6595 os_memset(mode, 0, sizeof(*mode)); 6596 (*num_modes)++; 6597 modes = nmodes; 6598 6599 mode->mode = HOSTAPD_MODE_IEEE80211B; 6600 6601 mode11g = &modes[mode11g_idx]; 6602 mode->num_channels = mode11g->num_channels; 6603 mode->channels = os_malloc(mode11g->num_channels * 6604 sizeof(struct hostapd_channel_data)); 6605 if (mode->channels == NULL) { 6606 (*num_modes)--; 6607 return modes; /* Could not add 802.11b mode */ 6608 } 6609 os_memcpy(mode->channels, mode11g->channels, 6610 mode11g->num_channels * sizeof(struct hostapd_channel_data)); 6611 6612 mode->num_rates = 0; 6613 mode->rates = os_malloc(4 * sizeof(int)); 6614 if (mode->rates == NULL) { 6615 os_free(mode->channels); 6616 (*num_modes)--; 6617 return modes; /* Could not add 802.11b mode */ 6618 } 6619 6620 for (i = 0; i < mode11g->num_rates; i++) { 6621 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 && 6622 mode11g->rates[i] != 55 && mode11g->rates[i] != 110) 6623 continue; 6624 mode->rates[mode->num_rates] = mode11g->rates[i]; 6625 mode->num_rates++; 6626 if (mode->num_rates == 4) 6627 break; 6628 } 6629 6630 if (mode->num_rates == 0) { 6631 os_free(mode->channels); 6632 os_free(mode->rates); 6633 (*num_modes)--; 6634 return modes; /* No 802.11b rates */ 6635 } 6636 6637 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g " 6638 "information"); 6639 6640 return modes; 6641} 6642 6643 6644static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start, 6645 int end) 6646{ 6647 int c; 6648 6649 for (c = 0; c < mode->num_channels; c++) { 6650 struct hostapd_channel_data *chan = &mode->channels[c]; 6651 if (chan->freq - 10 >= start && chan->freq + 10 <= end) 6652 chan->flag |= HOSTAPD_CHAN_HT40; 6653 } 6654} 6655 6656 6657static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start, 6658 int end) 6659{ 6660 int c; 6661 6662 for (c = 0; c < mode->num_channels; c++) { 6663 struct hostapd_channel_data *chan = &mode->channels[c]; 6664 if (!(chan->flag & HOSTAPD_CHAN_HT40)) 6665 continue; 6666 if (chan->freq - 30 >= start && chan->freq - 10 <= end) 6667 chan->flag |= HOSTAPD_CHAN_HT40MINUS; 6668 if (chan->freq + 10 >= start && chan->freq + 30 <= end) 6669 chan->flag |= HOSTAPD_CHAN_HT40PLUS; 6670 } 6671} 6672 6673 6674static void nl80211_reg_rule_max_eirp(u32 start, u32 end, u32 max_eirp, 6675 struct phy_info_arg *results) 6676{ 6677 u16 m; 6678 6679 for (m = 0; m < *results->num_modes; m++) { 6680 int c; 6681 struct hostapd_hw_modes *mode = &results->modes[m]; 6682 6683 for (c = 0; c < mode->num_channels; c++) { 6684 struct hostapd_channel_data *chan = &mode->channels[c]; 6685 if ((u32) chan->freq - 10 >= start && 6686 (u32) chan->freq + 10 <= end) 6687 chan->max_tx_power = max_eirp; 6688 } 6689 } 6690} 6691 6692 6693static void nl80211_reg_rule_ht40(u32 start, u32 end, 6694 struct phy_info_arg *results) 6695{ 6696 u16 m; 6697 6698 for (m = 0; m < *results->num_modes; m++) { 6699 if (!(results->modes[m].ht_capab & 6700 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6701 continue; 6702 nl80211_set_ht40_mode(&results->modes[m], start, end); 6703 } 6704} 6705 6706 6707static void nl80211_reg_rule_sec(struct nlattr *tb[], 6708 struct phy_info_arg *results) 6709{ 6710 u32 start, end, max_bw; 6711 u16 m; 6712 6713 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6714 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 6715 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 6716 return; 6717 6718 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6719 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6720 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6721 6722 if (max_bw < 20) 6723 return; 6724 6725 for (m = 0; m < *results->num_modes; m++) { 6726 if (!(results->modes[m].ht_capab & 6727 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6728 continue; 6729 nl80211_set_ht40_mode_sec(&results->modes[m], start, end); 6730 } 6731} 6732 6733 6734static void nl80211_set_vht_mode(struct hostapd_hw_modes *mode, int start, 6735 int end) 6736{ 6737 int c; 6738 6739 for (c = 0; c < mode->num_channels; c++) { 6740 struct hostapd_channel_data *chan = &mode->channels[c]; 6741 if (chan->freq - 10 >= start && chan->freq + 70 <= end) 6742 chan->flag |= HOSTAPD_CHAN_VHT_10_70; 6743 6744 if (chan->freq - 30 >= start && chan->freq + 50 <= end) 6745 chan->flag |= HOSTAPD_CHAN_VHT_30_50; 6746 6747 if (chan->freq - 50 >= start && chan->freq + 30 <= end) 6748 chan->flag |= HOSTAPD_CHAN_VHT_50_30; 6749 6750 if (chan->freq - 70 >= start && chan->freq + 10 <= end) 6751 chan->flag |= HOSTAPD_CHAN_VHT_70_10; 6752 } 6753} 6754 6755 6756static void nl80211_reg_rule_vht(struct nlattr *tb[], 6757 struct phy_info_arg *results) 6758{ 6759 u32 start, end, max_bw; 6760 u16 m; 6761 6762 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6763 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 6764 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 6765 return; 6766 6767 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6768 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6769 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6770 6771 if (max_bw < 80) 6772 return; 6773 6774 for (m = 0; m < *results->num_modes; m++) { 6775 if (!(results->modes[m].ht_capab & 6776 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6777 continue; 6778 /* TODO: use a real VHT support indication */ 6779 if (!results->modes[m].vht_capab) 6780 continue; 6781 6782 nl80211_set_vht_mode(&results->modes[m], start, end); 6783 } 6784} 6785 6786 6787static const char * dfs_domain_name(enum nl80211_dfs_regions region) 6788{ 6789 switch (region) { 6790 case NL80211_DFS_UNSET: 6791 return "DFS-UNSET"; 6792 case NL80211_DFS_FCC: 6793 return "DFS-FCC"; 6794 case NL80211_DFS_ETSI: 6795 return "DFS-ETSI"; 6796 case NL80211_DFS_JP: 6797 return "DFS-JP"; 6798 default: 6799 return "DFS-invalid"; 6800 } 6801} 6802 6803 6804static int nl80211_get_reg(struct nl_msg *msg, void *arg) 6805{ 6806 struct phy_info_arg *results = arg; 6807 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 6808 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 6809 struct nlattr *nl_rule; 6810 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1]; 6811 int rem_rule; 6812 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 6813 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, 6814 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, 6815 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, 6816 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, 6817 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, 6818 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, 6819 }; 6820 6821 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 6822 genlmsg_attrlen(gnlh, 0), NULL); 6823 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] || 6824 !tb_msg[NL80211_ATTR_REG_RULES]) { 6825 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information " 6826 "available"); 6827 return NL_SKIP; 6828 } 6829 6830 if (tb_msg[NL80211_ATTR_DFS_REGION]) { 6831 enum nl80211_dfs_regions dfs_domain; 6832 dfs_domain = nla_get_u8(tb_msg[NL80211_ATTR_DFS_REGION]); 6833 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s (%s)", 6834 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]), 6835 dfs_domain_name(dfs_domain)); 6836 } else { 6837 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s", 6838 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2])); 6839 } 6840 6841 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6842 { 6843 u32 start, end, max_eirp = 0, max_bw = 0, flags = 0; 6844 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6845 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6846 if (tb_rule[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6847 tb_rule[NL80211_ATTR_FREQ_RANGE_END] == NULL) 6848 continue; 6849 start = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6850 end = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6851 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) 6852 max_eirp = nla_get_u32(tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) / 100; 6853 if (tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) 6854 max_bw = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6855 if (tb_rule[NL80211_ATTR_REG_RULE_FLAGS]) 6856 flags = nla_get_u32(tb_rule[NL80211_ATTR_REG_RULE_FLAGS]); 6857 6858 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz %u mBm%s%s%s%s%s%s%s%s", 6859 start, end, max_bw, max_eirp, 6860 flags & NL80211_RRF_NO_OFDM ? " (no OFDM)" : "", 6861 flags & NL80211_RRF_NO_CCK ? " (no CCK)" : "", 6862 flags & NL80211_RRF_NO_INDOOR ? " (no indoor)" : "", 6863 flags & NL80211_RRF_NO_OUTDOOR ? " (no outdoor)" : 6864 "", 6865 flags & NL80211_RRF_DFS ? " (DFS)" : "", 6866 flags & NL80211_RRF_PTP_ONLY ? " (PTP only)" : "", 6867 flags & NL80211_RRF_PTMP_ONLY ? " (PTMP only)" : "", 6868 flags & NL80211_RRF_NO_IR ? " (no IR)" : ""); 6869 if (max_bw >= 40) 6870 nl80211_reg_rule_ht40(start, end, results); 6871 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) 6872 nl80211_reg_rule_max_eirp(start, end, max_eirp, 6873 results); 6874 } 6875 6876 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6877 { 6878 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6879 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6880 nl80211_reg_rule_sec(tb_rule, results); 6881 } 6882 6883 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6884 { 6885 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6886 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6887 nl80211_reg_rule_vht(tb_rule, results); 6888 } 6889 6890 return NL_SKIP; 6891} 6892 6893 6894static int nl80211_set_regulatory_flags(struct wpa_driver_nl80211_data *drv, 6895 struct phy_info_arg *results) 6896{ 6897 struct nl_msg *msg; 6898 6899 msg = nlmsg_alloc(); 6900 if (!msg) 6901 return -ENOMEM; 6902 6903 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 6904 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results); 6905} 6906 6907 6908static struct hostapd_hw_modes * 6909wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags) 6910{ 6911 u32 feat; 6912 struct i802_bss *bss = priv; 6913 struct wpa_driver_nl80211_data *drv = bss->drv; 6914 struct nl_msg *msg; 6915 struct phy_info_arg result = { 6916 .num_modes = num_modes, 6917 .modes = NULL, 6918 .last_mode = -1, 6919 }; 6920 6921 *num_modes = 0; 6922 *flags = 0; 6923 6924 msg = nlmsg_alloc(); 6925 if (!msg) 6926 return NULL; 6927 6928 feat = get_nl80211_protocol_features(drv); 6929 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 6930 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 6931 else 6932 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 6933 6934 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 6935 if (nl80211_set_iface_id(msg, bss) < 0) 6936 goto nla_put_failure; 6937 6938 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) { 6939 nl80211_set_regulatory_flags(drv, &result); 6940 return wpa_driver_nl80211_postprocess_modes(result.modes, 6941 num_modes); 6942 } 6943 msg = NULL; 6944 nla_put_failure: 6945 nlmsg_free(msg); 6946 return NULL; 6947} 6948 6949 6950static int wpa_driver_nl80211_send_mntr(struct wpa_driver_nl80211_data *drv, 6951 const void *data, size_t len, 6952 int encrypt, int noack) 6953{ 6954 __u8 rtap_hdr[] = { 6955 0x00, 0x00, /* radiotap version */ 6956 0x0e, 0x00, /* radiotap length */ 6957 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */ 6958 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */ 6959 0x00, /* padding */ 6960 0x00, 0x00, /* RX and TX flags to indicate that */ 6961 0x00, 0x00, /* this is the injected frame directly */ 6962 }; 6963 struct iovec iov[2] = { 6964 { 6965 .iov_base = &rtap_hdr, 6966 .iov_len = sizeof(rtap_hdr), 6967 }, 6968 { 6969 .iov_base = (void *) data, 6970 .iov_len = len, 6971 } 6972 }; 6973 struct msghdr msg = { 6974 .msg_name = NULL, 6975 .msg_namelen = 0, 6976 .msg_iov = iov, 6977 .msg_iovlen = 2, 6978 .msg_control = NULL, 6979 .msg_controllen = 0, 6980 .msg_flags = 0, 6981 }; 6982 int res; 6983 u16 txflags = 0; 6984 6985 if (encrypt) 6986 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP; 6987 6988 if (drv->monitor_sock < 0) { 6989 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available " 6990 "for %s", __func__); 6991 return -1; 6992 } 6993 6994 if (noack) 6995 txflags |= IEEE80211_RADIOTAP_F_TX_NOACK; 6996 WPA_PUT_LE16(&rtap_hdr[12], txflags); 6997 6998 res = sendmsg(drv->monitor_sock, &msg, 0); 6999 if (res < 0) { 7000 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno)); 7001 return -1; 7002 } 7003 return 0; 7004} 7005 7006 7007static int wpa_driver_nl80211_send_frame(struct i802_bss *bss, 7008 const void *data, size_t len, 7009 int encrypt, int noack, 7010 unsigned int freq, int no_cck, 7011 int offchanok, unsigned int wait_time) 7012{ 7013 struct wpa_driver_nl80211_data *drv = bss->drv; 7014 u64 cookie; 7015 int res; 7016 7017 if (freq == 0 && drv->nlmode == NL80211_IFTYPE_ADHOC) { 7018 freq = nl80211_get_assoc_freq(drv); 7019 wpa_printf(MSG_DEBUG, 7020 "nl80211: send_frame - Use assoc_freq=%u for IBSS", 7021 freq); 7022 } 7023 if (freq == 0) { 7024 wpa_printf(MSG_DEBUG, "nl80211: send_frame - Use bss->freq=%u", 7025 bss->freq); 7026 freq = bss->freq; 7027 } 7028 7029 if (drv->use_monitor) { 7030 wpa_printf(MSG_DEBUG, "nl80211: send_frame(freq=%u bss->freq=%u) -> send_mntr", 7031 freq, bss->freq); 7032 return wpa_driver_nl80211_send_mntr(drv, data, len, 7033 encrypt, noack); 7034 } 7035 7036 wpa_printf(MSG_DEBUG, "nl80211: send_frame -> send_frame_cmd"); 7037 res = nl80211_send_frame_cmd(bss, freq, wait_time, data, len, 7038 &cookie, no_cck, noack, offchanok); 7039 if (res == 0 && !noack) { 7040 const struct ieee80211_mgmt *mgmt; 7041 u16 fc; 7042 7043 mgmt = (const struct ieee80211_mgmt *) data; 7044 fc = le_to_host16(mgmt->frame_control); 7045 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 7046 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_ACTION) { 7047 wpa_printf(MSG_MSGDUMP, 7048 "nl80211: Update send_action_cookie from 0x%llx to 0x%llx", 7049 (long long unsigned int) 7050 drv->send_action_cookie, 7051 (long long unsigned int) cookie); 7052 drv->send_action_cookie = cookie; 7053 } 7054 } 7055 7056 return res; 7057} 7058 7059 7060static int wpa_driver_nl80211_send_mlme(struct i802_bss *bss, const u8 *data, 7061 size_t data_len, int noack, 7062 unsigned int freq, int no_cck, 7063 int offchanok, 7064 unsigned int wait_time) 7065{ 7066 struct wpa_driver_nl80211_data *drv = bss->drv; 7067 struct ieee80211_mgmt *mgmt; 7068 int encrypt = 1; 7069 u16 fc; 7070 7071 mgmt = (struct ieee80211_mgmt *) data; 7072 fc = le_to_host16(mgmt->frame_control); 7073 wpa_printf(MSG_DEBUG, "nl80211: send_mlme - noack=%d freq=%u no_cck=%d offchanok=%d wait_time=%u fc=0x%x nlmode=%d", 7074 noack, freq, no_cck, offchanok, wait_time, fc, drv->nlmode); 7075 7076 if ((is_sta_interface(drv->nlmode) || 7077 drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) && 7078 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 7079 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) { 7080 /* 7081 * The use of last_mgmt_freq is a bit of a hack, 7082 * but it works due to the single-threaded nature 7083 * of wpa_supplicant. 7084 */ 7085 if (freq == 0) { 7086 wpa_printf(MSG_DEBUG, "nl80211: Use last_mgmt_freq=%d", 7087 drv->last_mgmt_freq); 7088 freq = drv->last_mgmt_freq; 7089 } 7090 return nl80211_send_frame_cmd(bss, freq, 0, 7091 data, data_len, NULL, 1, noack, 7092 1); 7093 } 7094 7095 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) { 7096 if (freq == 0) { 7097 wpa_printf(MSG_DEBUG, "nl80211: Use bss->freq=%d", 7098 bss->freq); 7099 freq = bss->freq; 7100 } 7101 return nl80211_send_frame_cmd(bss, freq, 7102 (int) freq == bss->freq ? 0 : 7103 wait_time, 7104 data, data_len, 7105 &drv->send_action_cookie, 7106 no_cck, noack, offchanok); 7107 } 7108 7109 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 7110 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) { 7111 /* 7112 * Only one of the authentication frame types is encrypted. 7113 * In order for static WEP encryption to work properly (i.e., 7114 * to not encrypt the frame), we need to tell mac80211 about 7115 * the frames that must not be encrypted. 7116 */ 7117 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg); 7118 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction); 7119 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3) 7120 encrypt = 0; 7121 } 7122 7123 wpa_printf(MSG_DEBUG, "nl80211: send_mlme -> send_frame"); 7124 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 7125 noack, freq, no_cck, offchanok, 7126 wait_time); 7127} 7128 7129 7130static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble, 7131 int slot, int ht_opmode, int ap_isolate, 7132 int *basic_rates) 7133{ 7134 struct wpa_driver_nl80211_data *drv = bss->drv; 7135 struct nl_msg *msg; 7136 7137 msg = nlmsg_alloc(); 7138 if (!msg) 7139 return -ENOMEM; 7140 7141 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS); 7142 7143 if (cts >= 0) 7144 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts); 7145 if (preamble >= 0) 7146 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble); 7147 if (slot >= 0) 7148 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot); 7149 if (ht_opmode >= 0) 7150 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode); 7151 if (ap_isolate >= 0) 7152 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate); 7153 7154 if (basic_rates) { 7155 u8 rates[NL80211_MAX_SUPP_RATES]; 7156 u8 rates_len = 0; 7157 int i; 7158 7159 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; 7160 i++) 7161 rates[rates_len++] = basic_rates[i] / 5; 7162 7163 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates); 7164 } 7165 7166 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 7167 7168 return send_and_recv_msgs(drv, msg, NULL, NULL); 7169 nla_put_failure: 7170 nlmsg_free(msg); 7171 return -ENOBUFS; 7172} 7173 7174 7175static int wpa_driver_nl80211_set_acl(void *priv, 7176 struct hostapd_acl_params *params) 7177{ 7178 struct i802_bss *bss = priv; 7179 struct wpa_driver_nl80211_data *drv = bss->drv; 7180 struct nl_msg *msg; 7181 struct nlattr *acl; 7182 unsigned int i; 7183 int ret = 0; 7184 7185 if (!(drv->capa.max_acl_mac_addrs)) 7186 return -ENOTSUP; 7187 7188 if (params->num_mac_acl > drv->capa.max_acl_mac_addrs) 7189 return -ENOTSUP; 7190 7191 msg = nlmsg_alloc(); 7192 if (!msg) 7193 return -ENOMEM; 7194 7195 wpa_printf(MSG_DEBUG, "nl80211: Set %s ACL (num_mac_acl=%u)", 7196 params->acl_policy ? "Accept" : "Deny", params->num_mac_acl); 7197 7198 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_MAC_ACL); 7199 7200 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7201 7202 NLA_PUT_U32(msg, NL80211_ATTR_ACL_POLICY, params->acl_policy ? 7203 NL80211_ACL_POLICY_DENY_UNLESS_LISTED : 7204 NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED); 7205 7206 acl = nla_nest_start(msg, NL80211_ATTR_MAC_ADDRS); 7207 if (acl == NULL) 7208 goto nla_put_failure; 7209 7210 for (i = 0; i < params->num_mac_acl; i++) 7211 NLA_PUT(msg, i + 1, ETH_ALEN, params->mac_acl[i].addr); 7212 7213 nla_nest_end(msg, acl); 7214 7215 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7216 msg = NULL; 7217 if (ret) { 7218 wpa_printf(MSG_DEBUG, "nl80211: Failed to set MAC ACL: %d (%s)", 7219 ret, strerror(-ret)); 7220 } 7221 7222nla_put_failure: 7223 nlmsg_free(msg); 7224 7225 return ret; 7226} 7227 7228 7229static int wpa_driver_nl80211_set_ap(void *priv, 7230 struct wpa_driver_ap_params *params) 7231{ 7232 struct i802_bss *bss = priv; 7233 struct wpa_driver_nl80211_data *drv = bss->drv; 7234 struct nl_msg *msg; 7235 u8 cmd = NL80211_CMD_NEW_BEACON; 7236 int ret; 7237 int beacon_set; 7238 int ifindex = if_nametoindex(bss->ifname); 7239 int num_suites; 7240 u32 suites[10], suite; 7241 u32 ver; 7242 7243 beacon_set = bss->beacon_set; 7244 7245 msg = nlmsg_alloc(); 7246 if (!msg) 7247 return -ENOMEM; 7248 7249 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)", 7250 beacon_set); 7251 if (beacon_set) 7252 cmd = NL80211_CMD_SET_BEACON; 7253 7254 nl80211_cmd(drv, msg, 0, cmd); 7255 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon head", 7256 params->head, params->head_len); 7257 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head); 7258 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon tail", 7259 params->tail, params->tail_len); 7260 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail); 7261 wpa_printf(MSG_DEBUG, "nl80211: ifindex=%d", ifindex); 7262 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 7263 wpa_printf(MSG_DEBUG, "nl80211: beacon_int=%d", params->beacon_int); 7264 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int); 7265 wpa_printf(MSG_DEBUG, "nl80211: dtim_period=%d", params->dtim_period); 7266 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period); 7267 wpa_hexdump_ascii(MSG_DEBUG, "nl80211: ssid", 7268 params->ssid, params->ssid_len); 7269 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7270 params->ssid); 7271 if (params->proberesp && params->proberesp_len) { 7272 wpa_hexdump(MSG_DEBUG, "nl80211: proberesp (offload)", 7273 params->proberesp, params->proberesp_len); 7274 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len, 7275 params->proberesp); 7276 } 7277 switch (params->hide_ssid) { 7278 case NO_SSID_HIDING: 7279 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID not in use"); 7280 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 7281 NL80211_HIDDEN_SSID_NOT_IN_USE); 7282 break; 7283 case HIDDEN_SSID_ZERO_LEN: 7284 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero len"); 7285 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 7286 NL80211_HIDDEN_SSID_ZERO_LEN); 7287 break; 7288 case HIDDEN_SSID_ZERO_CONTENTS: 7289 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero contents"); 7290 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 7291 NL80211_HIDDEN_SSID_ZERO_CONTENTS); 7292 break; 7293 } 7294 wpa_printf(MSG_DEBUG, "nl80211: privacy=%d", params->privacy); 7295 if (params->privacy) 7296 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 7297 wpa_printf(MSG_DEBUG, "nl80211: auth_algs=0x%x", params->auth_algs); 7298 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) == 7299 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) { 7300 /* Leave out the attribute */ 7301 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED) 7302 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 7303 NL80211_AUTHTYPE_SHARED_KEY); 7304 else 7305 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 7306 NL80211_AUTHTYPE_OPEN_SYSTEM); 7307 7308 wpa_printf(MSG_DEBUG, "nl80211: wpa_version=0x%x", params->wpa_version); 7309 ver = 0; 7310 if (params->wpa_version & WPA_PROTO_WPA) 7311 ver |= NL80211_WPA_VERSION_1; 7312 if (params->wpa_version & WPA_PROTO_RSN) 7313 ver |= NL80211_WPA_VERSION_2; 7314 if (ver) 7315 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 7316 7317 wpa_printf(MSG_DEBUG, "nl80211: key_mgmt_suites=0x%x", 7318 params->key_mgmt_suites); 7319 num_suites = 0; 7320 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X) 7321 suites[num_suites++] = WLAN_AKM_SUITE_8021X; 7322 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK) 7323 suites[num_suites++] = WLAN_AKM_SUITE_PSK; 7324 if (num_suites) { 7325 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES, 7326 num_suites * sizeof(u32), suites); 7327 } 7328 7329 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X && 7330 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)) 7331 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT); 7332 7333 wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x", 7334 params->pairwise_ciphers); 7335 num_suites = wpa_cipher_to_cipher_suites(params->pairwise_ciphers, 7336 suites, ARRAY_SIZE(suites)); 7337 if (num_suites) { 7338 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, 7339 num_suites * sizeof(u32), suites); 7340 } 7341 7342 wpa_printf(MSG_DEBUG, "nl80211: group_cipher=0x%x", 7343 params->group_cipher); 7344 suite = wpa_cipher_to_cipher_suite(params->group_cipher); 7345 if (suite) 7346 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, suite); 7347 7348 if (params->beacon_ies) { 7349 wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies", 7350 params->beacon_ies); 7351 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies), 7352 wpabuf_head(params->beacon_ies)); 7353 } 7354 if (params->proberesp_ies) { 7355 wpa_hexdump_buf(MSG_DEBUG, "nl80211: proberesp_ies", 7356 params->proberesp_ies); 7357 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, 7358 wpabuf_len(params->proberesp_ies), 7359 wpabuf_head(params->proberesp_ies)); 7360 } 7361 if (params->assocresp_ies) { 7362 wpa_hexdump_buf(MSG_DEBUG, "nl80211: assocresp_ies", 7363 params->assocresp_ies); 7364 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP, 7365 wpabuf_len(params->assocresp_ies), 7366 wpabuf_head(params->assocresp_ies)); 7367 } 7368 7369 if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) { 7370 wpa_printf(MSG_DEBUG, "nl80211: ap_max_inactivity=%d", 7371 params->ap_max_inactivity); 7372 NLA_PUT_U16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT, 7373 params->ap_max_inactivity); 7374 } 7375 7376 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7377 if (ret) { 7378 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)", 7379 ret, strerror(-ret)); 7380 } else { 7381 bss->beacon_set = 1; 7382 nl80211_set_bss(bss, params->cts_protect, params->preamble, 7383 params->short_slot_time, params->ht_opmode, 7384 params->isolate, params->basic_rates); 7385 if (beacon_set && params->freq && 7386 params->freq->bandwidth != bss->bandwidth) { 7387 wpa_printf(MSG_DEBUG, 7388 "nl80211: Update BSS %s bandwidth: %d -> %d", 7389 bss->ifname, bss->bandwidth, 7390 params->freq->bandwidth); 7391 ret = nl80211_set_channel(bss, params->freq, 1); 7392 if (ret) { 7393 wpa_printf(MSG_DEBUG, 7394 "nl80211: Frequency set failed: %d (%s)", 7395 ret, strerror(-ret)); 7396 } else { 7397 wpa_printf(MSG_DEBUG, 7398 "nl80211: Frequency set succeeded for ht2040 coex"); 7399 bss->bandwidth = params->freq->bandwidth; 7400 } 7401 } else if (!beacon_set) { 7402 /* 7403 * cfg80211 updates the driver on frequence change in AP 7404 * mode only at the point when beaconing is started, so 7405 * set the initial value here. 7406 */ 7407 bss->bandwidth = params->freq->bandwidth; 7408 } 7409 } 7410 return ret; 7411 nla_put_failure: 7412 nlmsg_free(msg); 7413 return -ENOBUFS; 7414} 7415 7416 7417static int nl80211_put_freq_params(struct nl_msg *msg, 7418 struct hostapd_freq_params *freq) 7419{ 7420 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); 7421 if (freq->vht_enabled) { 7422 switch (freq->bandwidth) { 7423 case 20: 7424 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7425 NL80211_CHAN_WIDTH_20); 7426 break; 7427 case 40: 7428 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7429 NL80211_CHAN_WIDTH_40); 7430 break; 7431 case 80: 7432 if (freq->center_freq2) 7433 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7434 NL80211_CHAN_WIDTH_80P80); 7435 else 7436 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7437 NL80211_CHAN_WIDTH_80); 7438 break; 7439 case 160: 7440 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7441 NL80211_CHAN_WIDTH_160); 7442 break; 7443 default: 7444 return -EINVAL; 7445 } 7446 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); 7447 if (freq->center_freq2) 7448 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, 7449 freq->center_freq2); 7450 } else if (freq->ht_enabled) { 7451 switch (freq->sec_channel_offset) { 7452 case -1: 7453 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 7454 NL80211_CHAN_HT40MINUS); 7455 break; 7456 case 1: 7457 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 7458 NL80211_CHAN_HT40PLUS); 7459 break; 7460 default: 7461 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 7462 NL80211_CHAN_HT20); 7463 break; 7464 } 7465 } 7466 return 0; 7467 7468nla_put_failure: 7469 return -ENOBUFS; 7470} 7471 7472 7473static int nl80211_set_channel(struct i802_bss *bss, 7474 struct hostapd_freq_params *freq, int set_chan) 7475{ 7476 struct wpa_driver_nl80211_data *drv = bss->drv; 7477 struct nl_msg *msg; 7478 int ret; 7479 7480 wpa_printf(MSG_DEBUG, 7481 "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d, bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)", 7482 freq->freq, freq->ht_enabled, freq->vht_enabled, 7483 freq->bandwidth, freq->center_freq1, freq->center_freq2); 7484 msg = nlmsg_alloc(); 7485 if (!msg) 7486 return -1; 7487 7488 nl80211_cmd(drv, msg, 0, set_chan ? NL80211_CMD_SET_CHANNEL : 7489 NL80211_CMD_SET_WIPHY); 7490 7491 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7492 if (nl80211_put_freq_params(msg, freq) < 0) 7493 goto nla_put_failure; 7494 7495 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7496 msg = NULL; 7497 if (ret == 0) { 7498 bss->freq = freq->freq; 7499 return 0; 7500 } 7501 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): " 7502 "%d (%s)", freq->freq, ret, strerror(-ret)); 7503nla_put_failure: 7504 nlmsg_free(msg); 7505 return -1; 7506} 7507 7508 7509static u32 sta_flags_nl80211(int flags) 7510{ 7511 u32 f = 0; 7512 7513 if (flags & WPA_STA_AUTHORIZED) 7514 f |= BIT(NL80211_STA_FLAG_AUTHORIZED); 7515 if (flags & WPA_STA_WMM) 7516 f |= BIT(NL80211_STA_FLAG_WME); 7517 if (flags & WPA_STA_SHORT_PREAMBLE) 7518 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); 7519 if (flags & WPA_STA_MFP) 7520 f |= BIT(NL80211_STA_FLAG_MFP); 7521 if (flags & WPA_STA_TDLS_PEER) 7522 f |= BIT(NL80211_STA_FLAG_TDLS_PEER); 7523 7524 return f; 7525} 7526 7527 7528static int wpa_driver_nl80211_sta_add(void *priv, 7529 struct hostapd_sta_add_params *params) 7530{ 7531 struct i802_bss *bss = priv; 7532 struct wpa_driver_nl80211_data *drv = bss->drv; 7533 struct nl_msg *msg; 7534 struct nl80211_sta_flag_update upd; 7535 int ret = -ENOBUFS; 7536 7537 if ((params->flags & WPA_STA_TDLS_PEER) && 7538 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 7539 return -EOPNOTSUPP; 7540 7541 msg = nlmsg_alloc(); 7542 if (!msg) 7543 return -ENOMEM; 7544 7545 wpa_printf(MSG_DEBUG, "nl80211: %s STA " MACSTR, 7546 params->set ? "Set" : "Add", MAC2STR(params->addr)); 7547 nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION : 7548 NL80211_CMD_NEW_STATION); 7549 7550 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 7551 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr); 7552 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len, 7553 params->supp_rates); 7554 wpa_hexdump(MSG_DEBUG, " * supported rates", params->supp_rates, 7555 params->supp_rates_len); 7556 if (!params->set) { 7557 if (params->aid) { 7558 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid); 7559 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid); 7560 } else { 7561 /* 7562 * cfg80211 validates that AID is non-zero, so we have 7563 * to make this a non-zero value for the TDLS case where 7564 * a dummy STA entry is used for now. 7565 */ 7566 wpa_printf(MSG_DEBUG, " * aid=1 (TDLS workaround)"); 7567 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, 1); 7568 } 7569 wpa_printf(MSG_DEBUG, " * listen_interval=%u", 7570 params->listen_interval); 7571 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, 7572 params->listen_interval); 7573 } else if (params->aid && (params->flags & WPA_STA_TDLS_PEER)) { 7574 wpa_printf(MSG_DEBUG, " * peer_aid=%u", params->aid); 7575 NLA_PUT_U16(msg, NL80211_ATTR_PEER_AID, params->aid); 7576 } 7577 if (params->ht_capabilities) { 7578 wpa_hexdump(MSG_DEBUG, " * ht_capabilities", 7579 (u8 *) params->ht_capabilities, 7580 sizeof(*params->ht_capabilities)); 7581 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, 7582 sizeof(*params->ht_capabilities), 7583 params->ht_capabilities); 7584 } 7585 7586 if (params->vht_capabilities) { 7587 wpa_hexdump(MSG_DEBUG, " * vht_capabilities", 7588 (u8 *) params->vht_capabilities, 7589 sizeof(*params->vht_capabilities)); 7590 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, 7591 sizeof(*params->vht_capabilities), 7592 params->vht_capabilities); 7593 } 7594 7595 if (params->vht_opmode_enabled) { 7596 wpa_printf(MSG_DEBUG, " * opmode=%u", params->vht_opmode); 7597 NLA_PUT_U8(msg, NL80211_ATTR_OPMODE_NOTIF, 7598 params->vht_opmode); 7599 } 7600 7601 wpa_printf(MSG_DEBUG, " * capability=0x%x", params->capability); 7602 NLA_PUT_U16(msg, NL80211_ATTR_STA_CAPABILITY, params->capability); 7603 7604 if (params->ext_capab) { 7605 wpa_hexdump(MSG_DEBUG, " * ext_capab", 7606 params->ext_capab, params->ext_capab_len); 7607 NLA_PUT(msg, NL80211_ATTR_STA_EXT_CAPABILITY, 7608 params->ext_capab_len, params->ext_capab); 7609 } 7610 7611 if (params->supp_channels) { 7612 wpa_hexdump(MSG_DEBUG, " * supported channels", 7613 params->supp_channels, params->supp_channels_len); 7614 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_CHANNELS, 7615 params->supp_channels_len, params->supp_channels); 7616 } 7617 7618 if (params->supp_oper_classes) { 7619 wpa_hexdump(MSG_DEBUG, " * supported operating classes", 7620 params->supp_oper_classes, 7621 params->supp_oper_classes_len); 7622 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES, 7623 params->supp_oper_classes_len, 7624 params->supp_oper_classes); 7625 } 7626 7627 os_memset(&upd, 0, sizeof(upd)); 7628 upd.mask = sta_flags_nl80211(params->flags); 7629 upd.set = upd.mask; 7630 wpa_printf(MSG_DEBUG, " * flags set=0x%x mask=0x%x", 7631 upd.set, upd.mask); 7632 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 7633 7634 if (params->flags & WPA_STA_WMM) { 7635 struct nlattr *wme = nla_nest_start(msg, NL80211_ATTR_STA_WME); 7636 7637 if (!wme) 7638 goto nla_put_failure; 7639 7640 wpa_printf(MSG_DEBUG, " * qosinfo=0x%x", params->qosinfo); 7641 NLA_PUT_U8(msg, NL80211_STA_WME_UAPSD_QUEUES, 7642 params->qosinfo & WMM_QOSINFO_STA_AC_MASK); 7643 NLA_PUT_U8(msg, NL80211_STA_WME_MAX_SP, 7644 (params->qosinfo >> WMM_QOSINFO_STA_SP_SHIFT) & 7645 WMM_QOSINFO_STA_SP_MASK); 7646 nla_nest_end(msg, wme); 7647 } 7648 7649 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7650 msg = NULL; 7651 if (ret) 7652 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION " 7653 "result: %d (%s)", params->set ? "SET" : "NEW", ret, 7654 strerror(-ret)); 7655 if (ret == -EEXIST) 7656 ret = 0; 7657 nla_put_failure: 7658 nlmsg_free(msg); 7659 return ret; 7660} 7661 7662 7663static int wpa_driver_nl80211_sta_remove(struct i802_bss *bss, const u8 *addr) 7664{ 7665 struct wpa_driver_nl80211_data *drv = bss->drv; 7666 struct nl_msg *msg; 7667 int ret; 7668 7669 msg = nlmsg_alloc(); 7670 if (!msg) 7671 return -ENOMEM; 7672 7673 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 7674 7675 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 7676 if_nametoindex(bss->ifname)); 7677 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 7678 7679 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7680 wpa_printf(MSG_DEBUG, "nl80211: sta_remove -> DEL_STATION %s " MACSTR 7681 " --> %d (%s)", 7682 bss->ifname, MAC2STR(addr), ret, strerror(-ret)); 7683 if (ret == -ENOENT) 7684 return 0; 7685 return ret; 7686 nla_put_failure: 7687 nlmsg_free(msg); 7688 return -ENOBUFS; 7689} 7690 7691 7692static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, 7693 int ifidx) 7694{ 7695 struct nl_msg *msg; 7696 struct wpa_driver_nl80211_data *drv2; 7697 7698 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx); 7699 7700 /* stop listening for EAPOL on this interface */ 7701 dl_list_for_each(drv2, &drv->global->interfaces, 7702 struct wpa_driver_nl80211_data, list) 7703 del_ifidx(drv2, ifidx); 7704 7705 msg = nlmsg_alloc(); 7706 if (!msg) 7707 goto nla_put_failure; 7708 7709 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 7710 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx); 7711 7712 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 7713 return; 7714 msg = NULL; 7715 nla_put_failure: 7716 nlmsg_free(msg); 7717 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx); 7718} 7719 7720 7721static const char * nl80211_iftype_str(enum nl80211_iftype mode) 7722{ 7723 switch (mode) { 7724 case NL80211_IFTYPE_ADHOC: 7725 return "ADHOC"; 7726 case NL80211_IFTYPE_STATION: 7727 return "STATION"; 7728 case NL80211_IFTYPE_AP: 7729 return "AP"; 7730 case NL80211_IFTYPE_AP_VLAN: 7731 return "AP_VLAN"; 7732 case NL80211_IFTYPE_WDS: 7733 return "WDS"; 7734 case NL80211_IFTYPE_MONITOR: 7735 return "MONITOR"; 7736 case NL80211_IFTYPE_MESH_POINT: 7737 return "MESH_POINT"; 7738 case NL80211_IFTYPE_P2P_CLIENT: 7739 return "P2P_CLIENT"; 7740 case NL80211_IFTYPE_P2P_GO: 7741 return "P2P_GO"; 7742 case NL80211_IFTYPE_P2P_DEVICE: 7743 return "P2P_DEVICE"; 7744 default: 7745 return "unknown"; 7746 } 7747} 7748 7749 7750static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv, 7751 const char *ifname, 7752 enum nl80211_iftype iftype, 7753 const u8 *addr, int wds, 7754 int (*handler)(struct nl_msg *, void *), 7755 void *arg) 7756{ 7757 struct nl_msg *msg; 7758 int ifidx; 7759 int ret = -ENOBUFS; 7760 7761 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)", 7762 iftype, nl80211_iftype_str(iftype)); 7763 7764 msg = nlmsg_alloc(); 7765 if (!msg) 7766 return -1; 7767 7768 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE); 7769 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 7770 goto nla_put_failure; 7771 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname); 7772 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype); 7773 7774 if (iftype == NL80211_IFTYPE_MONITOR) { 7775 struct nlattr *flags; 7776 7777 flags = nla_nest_start(msg, NL80211_ATTR_MNTR_FLAGS); 7778 if (!flags) 7779 goto nla_put_failure; 7780 7781 NLA_PUT_FLAG(msg, NL80211_MNTR_FLAG_COOK_FRAMES); 7782 7783 nla_nest_end(msg, flags); 7784 } else if (wds) { 7785 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds); 7786 } 7787 7788 /* 7789 * Tell cfg80211 that the interface belongs to the socket that created 7790 * it, and the interface should be deleted when the socket is closed. 7791 */ 7792 NLA_PUT_FLAG(msg, NL80211_ATTR_IFACE_SOCKET_OWNER); 7793 7794 ret = send_and_recv_msgs(drv, msg, handler, arg); 7795 msg = NULL; 7796 if (ret) { 7797 nla_put_failure: 7798 nlmsg_free(msg); 7799 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)", 7800 ifname, ret, strerror(-ret)); 7801 return ret; 7802 } 7803 7804 if (iftype == NL80211_IFTYPE_P2P_DEVICE) 7805 return 0; 7806 7807 ifidx = if_nametoindex(ifname); 7808 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d", 7809 ifname, ifidx); 7810 7811 if (ifidx <= 0) 7812 return -1; 7813 7814 /* 7815 * Some virtual interfaces need to process EAPOL packets and events on 7816 * the parent interface. This is used mainly with hostapd. 7817 */ 7818 if (drv->hostapd || 7819 iftype == NL80211_IFTYPE_AP_VLAN || 7820 iftype == NL80211_IFTYPE_WDS || 7821 iftype == NL80211_IFTYPE_MONITOR) { 7822 /* start listening for EAPOL on this interface */ 7823 add_ifidx(drv, ifidx); 7824 } 7825 7826 if (addr && iftype != NL80211_IFTYPE_MONITOR && 7827 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) { 7828 nl80211_remove_iface(drv, ifidx); 7829 return -1; 7830 } 7831 7832 return ifidx; 7833} 7834 7835 7836static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv, 7837 const char *ifname, enum nl80211_iftype iftype, 7838 const u8 *addr, int wds, 7839 int (*handler)(struct nl_msg *, void *), 7840 void *arg, int use_existing) 7841{ 7842 int ret; 7843 7844 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds, handler, 7845 arg); 7846 7847 /* if error occurred and interface exists already */ 7848 if (ret == -ENFILE && if_nametoindex(ifname)) { 7849 if (use_existing) { 7850 wpa_printf(MSG_DEBUG, "nl80211: Continue using existing interface %s", 7851 ifname); 7852 if (addr && iftype != NL80211_IFTYPE_MONITOR && 7853 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 7854 addr) < 0 && 7855 (linux_set_iface_flags(drv->global->ioctl_sock, 7856 ifname, 0) < 0 || 7857 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 7858 addr) < 0 || 7859 linux_set_iface_flags(drv->global->ioctl_sock, 7860 ifname, 1) < 0)) 7861 return -1; 7862 return -ENFILE; 7863 } 7864 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname); 7865 7866 /* Try to remove the interface that was already there. */ 7867 nl80211_remove_iface(drv, if_nametoindex(ifname)); 7868 7869 /* Try to create the interface again */ 7870 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, 7871 wds, handler, arg); 7872 } 7873 7874 if (ret >= 0 && is_p2p_net_interface(iftype)) 7875 nl80211_disable_11b_rates(drv, ret, 1); 7876 7877 return ret; 7878} 7879 7880 7881static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok) 7882{ 7883 struct ieee80211_hdr *hdr; 7884 u16 fc; 7885 union wpa_event_data event; 7886 7887 hdr = (struct ieee80211_hdr *) buf; 7888 fc = le_to_host16(hdr->frame_control); 7889 7890 os_memset(&event, 0, sizeof(event)); 7891 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 7892 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 7893 event.tx_status.dst = hdr->addr1; 7894 event.tx_status.data = buf; 7895 event.tx_status.data_len = len; 7896 event.tx_status.ack = ok; 7897 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event); 7898} 7899 7900 7901static void from_unknown_sta(struct wpa_driver_nl80211_data *drv, 7902 u8 *buf, size_t len) 7903{ 7904 struct ieee80211_hdr *hdr = (void *)buf; 7905 u16 fc; 7906 union wpa_event_data event; 7907 7908 if (len < sizeof(*hdr)) 7909 return; 7910 7911 fc = le_to_host16(hdr->frame_control); 7912 7913 os_memset(&event, 0, sizeof(event)); 7914 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len); 7915 event.rx_from_unknown.addr = hdr->addr2; 7916 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) == 7917 (WLAN_FC_FROMDS | WLAN_FC_TODS); 7918 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 7919} 7920 7921 7922static void handle_frame(struct wpa_driver_nl80211_data *drv, 7923 u8 *buf, size_t len, int datarate, int ssi_signal) 7924{ 7925 struct ieee80211_hdr *hdr; 7926 u16 fc; 7927 union wpa_event_data event; 7928 7929 hdr = (struct ieee80211_hdr *) buf; 7930 fc = le_to_host16(hdr->frame_control); 7931 7932 switch (WLAN_FC_GET_TYPE(fc)) { 7933 case WLAN_FC_TYPE_MGMT: 7934 os_memset(&event, 0, sizeof(event)); 7935 event.rx_mgmt.frame = buf; 7936 event.rx_mgmt.frame_len = len; 7937 event.rx_mgmt.datarate = datarate; 7938 event.rx_mgmt.ssi_signal = ssi_signal; 7939 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 7940 break; 7941 case WLAN_FC_TYPE_CTRL: 7942 /* can only get here with PS-Poll frames */ 7943 wpa_printf(MSG_DEBUG, "CTRL"); 7944 from_unknown_sta(drv, buf, len); 7945 break; 7946 case WLAN_FC_TYPE_DATA: 7947 from_unknown_sta(drv, buf, len); 7948 break; 7949 } 7950} 7951 7952 7953static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx) 7954{ 7955 struct wpa_driver_nl80211_data *drv = eloop_ctx; 7956 int len; 7957 unsigned char buf[3000]; 7958 struct ieee80211_radiotap_iterator iter; 7959 int ret; 7960 int datarate = 0, ssi_signal = 0; 7961 int injected = 0, failed = 0, rxflags = 0; 7962 7963 len = recv(sock, buf, sizeof(buf), 0); 7964 if (len < 0) { 7965 wpa_printf(MSG_ERROR, "nl80211: Monitor socket recv failed: %s", 7966 strerror(errno)); 7967 return; 7968 } 7969 7970 if (ieee80211_radiotap_iterator_init(&iter, (void *) buf, len, NULL)) { 7971 wpa_printf(MSG_INFO, "nl80211: received invalid radiotap frame"); 7972 return; 7973 } 7974 7975 while (1) { 7976 ret = ieee80211_radiotap_iterator_next(&iter); 7977 if (ret == -ENOENT) 7978 break; 7979 if (ret) { 7980 wpa_printf(MSG_INFO, "nl80211: received invalid radiotap frame (%d)", 7981 ret); 7982 return; 7983 } 7984 switch (iter.this_arg_index) { 7985 case IEEE80211_RADIOTAP_FLAGS: 7986 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS) 7987 len -= 4; 7988 break; 7989 case IEEE80211_RADIOTAP_RX_FLAGS: 7990 rxflags = 1; 7991 break; 7992 case IEEE80211_RADIOTAP_TX_FLAGS: 7993 injected = 1; 7994 failed = le_to_host16((*(uint16_t *) iter.this_arg)) & 7995 IEEE80211_RADIOTAP_F_TX_FAIL; 7996 break; 7997 case IEEE80211_RADIOTAP_DATA_RETRIES: 7998 break; 7999 case IEEE80211_RADIOTAP_CHANNEL: 8000 /* TODO: convert from freq/flags to channel number */ 8001 break; 8002 case IEEE80211_RADIOTAP_RATE: 8003 datarate = *iter.this_arg * 5; 8004 break; 8005 case IEEE80211_RADIOTAP_DBM_ANTSIGNAL: 8006 ssi_signal = (s8) *iter.this_arg; 8007 break; 8008 } 8009 } 8010 8011 if (rxflags && injected) 8012 return; 8013 8014 if (!injected) 8015 handle_frame(drv, buf + iter._max_length, 8016 len - iter._max_length, datarate, ssi_signal); 8017 else 8018 handle_tx_callback(drv->ctx, buf + iter._max_length, 8019 len - iter._max_length, !failed); 8020} 8021 8022 8023/* 8024 * we post-process the filter code later and rewrite 8025 * this to the offset to the last instruction 8026 */ 8027#define PASS 0xFF 8028#define FAIL 0xFE 8029 8030static struct sock_filter msock_filter_insns[] = { 8031 /* 8032 * do a little-endian load of the radiotap length field 8033 */ 8034 /* load lower byte into A */ 8035 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2), 8036 /* put it into X (== index register) */ 8037 BPF_STMT(BPF_MISC| BPF_TAX, 0), 8038 /* load upper byte into A */ 8039 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3), 8040 /* left-shift it by 8 */ 8041 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8), 8042 /* or with X */ 8043 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0), 8044 /* put result into X */ 8045 BPF_STMT(BPF_MISC| BPF_TAX, 0), 8046 8047 /* 8048 * Allow management frames through, this also gives us those 8049 * management frames that we sent ourselves with status 8050 */ 8051 /* load the lower byte of the IEEE 802.11 frame control field */ 8052 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 8053 /* mask off frame type and version */ 8054 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF), 8055 /* accept frame if it's both 0, fall through otherwise */ 8056 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0), 8057 8058 /* 8059 * TODO: add a bit to radiotap RX flags that indicates 8060 * that the sending station is not associated, then 8061 * add a filter here that filters on our DA and that flag 8062 * to allow us to deauth frames to that bad station. 8063 * 8064 * For now allow all To DS data frames through. 8065 */ 8066 /* load the IEEE 802.11 frame control field */ 8067 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0), 8068 /* mask off frame type, version and DS status */ 8069 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03), 8070 /* accept frame if version 0, type 2 and To DS, fall through otherwise 8071 */ 8072 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0), 8073 8074#if 0 8075 /* 8076 * drop non-data frames 8077 */ 8078 /* load the lower byte of the frame control field */ 8079 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 8080 /* mask off QoS bit */ 8081 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c), 8082 /* drop non-data frames */ 8083 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL), 8084#endif 8085 /* load the upper byte of the frame control field */ 8086 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1), 8087 /* mask off toDS/fromDS */ 8088 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03), 8089 /* accept WDS frames */ 8090 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0), 8091 8092 /* 8093 * add header length to index 8094 */ 8095 /* load the lower byte of the frame control field */ 8096 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 8097 /* mask off QoS bit */ 8098 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80), 8099 /* right shift it by 6 to give 0 or 2 */ 8100 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6), 8101 /* add data frame header length */ 8102 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24), 8103 /* add index, was start of 802.11 header */ 8104 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), 8105 /* move to index, now start of LL header */ 8106 BPF_STMT(BPF_MISC | BPF_TAX, 0), 8107 8108 /* 8109 * Accept empty data frames, we use those for 8110 * polling activity. 8111 */ 8112 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0), 8113 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0), 8114 8115 /* 8116 * Accept EAPOL frames 8117 */ 8118 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0), 8119 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL), 8120 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4), 8121 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL), 8122 8123 /* keep these last two statements or change the code below */ 8124 /* return 0 == "DROP" */ 8125 BPF_STMT(BPF_RET | BPF_K, 0), 8126 /* return ~0 == "keep all" */ 8127 BPF_STMT(BPF_RET | BPF_K, ~0), 8128}; 8129 8130static struct sock_fprog msock_filter = { 8131 .len = ARRAY_SIZE(msock_filter_insns), 8132 .filter = msock_filter_insns, 8133}; 8134 8135 8136static int add_monitor_filter(int s) 8137{ 8138 int idx; 8139 8140 /* rewrite all PASS/FAIL jump offsets */ 8141 for (idx = 0; idx < msock_filter.len; idx++) { 8142 struct sock_filter *insn = &msock_filter_insns[idx]; 8143 8144 if (BPF_CLASS(insn->code) == BPF_JMP) { 8145 if (insn->code == (BPF_JMP|BPF_JA)) { 8146 if (insn->k == PASS) 8147 insn->k = msock_filter.len - idx - 2; 8148 else if (insn->k == FAIL) 8149 insn->k = msock_filter.len - idx - 3; 8150 } 8151 8152 if (insn->jt == PASS) 8153 insn->jt = msock_filter.len - idx - 2; 8154 else if (insn->jt == FAIL) 8155 insn->jt = msock_filter.len - idx - 3; 8156 8157 if (insn->jf == PASS) 8158 insn->jf = msock_filter.len - idx - 2; 8159 else if (insn->jf == FAIL) 8160 insn->jf = msock_filter.len - idx - 3; 8161 } 8162 } 8163 8164 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER, 8165 &msock_filter, sizeof(msock_filter))) { 8166 wpa_printf(MSG_ERROR, "nl80211: setsockopt(SO_ATTACH_FILTER) failed: %s", 8167 strerror(errno)); 8168 return -1; 8169 } 8170 8171 return 0; 8172} 8173 8174 8175static void nl80211_remove_monitor_interface( 8176 struct wpa_driver_nl80211_data *drv) 8177{ 8178 if (drv->monitor_refcount > 0) 8179 drv->monitor_refcount--; 8180 wpa_printf(MSG_DEBUG, "nl80211: Remove monitor interface: refcount=%d", 8181 drv->monitor_refcount); 8182 if (drv->monitor_refcount > 0) 8183 return; 8184 8185 if (drv->monitor_ifidx >= 0) { 8186 nl80211_remove_iface(drv, drv->monitor_ifidx); 8187 drv->monitor_ifidx = -1; 8188 } 8189 if (drv->monitor_sock >= 0) { 8190 eloop_unregister_read_sock(drv->monitor_sock); 8191 close(drv->monitor_sock); 8192 drv->monitor_sock = -1; 8193 } 8194} 8195 8196 8197static int 8198nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv) 8199{ 8200 char buf[IFNAMSIZ]; 8201 struct sockaddr_ll ll; 8202 int optval; 8203 socklen_t optlen; 8204 8205 if (drv->monitor_ifidx >= 0) { 8206 drv->monitor_refcount++; 8207 wpa_printf(MSG_DEBUG, "nl80211: Re-use existing monitor interface: refcount=%d", 8208 drv->monitor_refcount); 8209 return 0; 8210 } 8211 8212 if (os_strncmp(drv->first_bss->ifname, "p2p-", 4) == 0) { 8213 /* 8214 * P2P interface name is of the format p2p-%s-%d. For monitor 8215 * interface name corresponding to P2P GO, replace "p2p-" with 8216 * "mon-" to retain the same interface name length and to 8217 * indicate that it is a monitor interface. 8218 */ 8219 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss->ifname + 4); 8220 } else { 8221 /* Non-P2P interface with AP functionality. */ 8222 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss->ifname); 8223 } 8224 8225 buf[IFNAMSIZ - 1] = '\0'; 8226 8227 drv->monitor_ifidx = 8228 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL, 8229 0, NULL, NULL, 0); 8230 8231 if (drv->monitor_ifidx == -EOPNOTSUPP) { 8232 /* 8233 * This is backward compatibility for a few versions of 8234 * the kernel only that didn't advertise the right 8235 * attributes for the only driver that then supported 8236 * AP mode w/o monitor -- ath6kl. 8237 */ 8238 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support " 8239 "monitor interface type - try to run without it"); 8240 drv->device_ap_sme = 1; 8241 } 8242 8243 if (drv->monitor_ifidx < 0) 8244 return -1; 8245 8246 if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1)) 8247 goto error; 8248 8249 memset(&ll, 0, sizeof(ll)); 8250 ll.sll_family = AF_PACKET; 8251 ll.sll_ifindex = drv->monitor_ifidx; 8252 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)); 8253 if (drv->monitor_sock < 0) { 8254 wpa_printf(MSG_ERROR, "nl80211: socket[PF_PACKET,SOCK_RAW] failed: %s", 8255 strerror(errno)); 8256 goto error; 8257 } 8258 8259 if (add_monitor_filter(drv->monitor_sock)) { 8260 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor " 8261 "interface; do filtering in user space"); 8262 /* This works, but will cost in performance. */ 8263 } 8264 8265 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) { 8266 wpa_printf(MSG_ERROR, "nl80211: monitor socket bind failed: %s", 8267 strerror(errno)); 8268 goto error; 8269 } 8270 8271 optlen = sizeof(optval); 8272 optval = 20; 8273 if (setsockopt 8274 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) { 8275 wpa_printf(MSG_ERROR, "nl80211: Failed to set socket priority: %s", 8276 strerror(errno)); 8277 goto error; 8278 } 8279 8280 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read, 8281 drv, NULL)) { 8282 wpa_printf(MSG_INFO, "nl80211: Could not register monitor read socket"); 8283 goto error; 8284 } 8285 8286 drv->monitor_refcount++; 8287 return 0; 8288 error: 8289 nl80211_remove_monitor_interface(drv); 8290 return -1; 8291} 8292 8293 8294static int nl80211_setup_ap(struct i802_bss *bss) 8295{ 8296 struct wpa_driver_nl80211_data *drv = bss->drv; 8297 8298 wpa_printf(MSG_DEBUG, "nl80211: Setup AP(%s) - device_ap_sme=%d use_monitor=%d", 8299 bss->ifname, drv->device_ap_sme, drv->use_monitor); 8300 8301 /* 8302 * Disable Probe Request reporting unless we need it in this way for 8303 * devices that include the AP SME, in the other case (unless using 8304 * monitor iface) we'll get it through the nl_mgmt socket instead. 8305 */ 8306 if (!drv->device_ap_sme) 8307 wpa_driver_nl80211_probe_req_report(bss, 0); 8308 8309 if (!drv->device_ap_sme && !drv->use_monitor) 8310 if (nl80211_mgmt_subscribe_ap(bss)) 8311 return -1; 8312 8313 if (drv->device_ap_sme && !drv->use_monitor) 8314 if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) 8315 return -1; 8316 8317 if (!drv->device_ap_sme && drv->use_monitor && 8318 nl80211_create_monitor_interface(drv) && 8319 !drv->device_ap_sme) 8320 return -1; 8321 8322 if (drv->device_ap_sme && 8323 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) { 8324 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable " 8325 "Probe Request frame reporting in AP mode"); 8326 /* Try to survive without this */ 8327 } 8328 8329 return 0; 8330} 8331 8332 8333static void nl80211_teardown_ap(struct i802_bss *bss) 8334{ 8335 struct wpa_driver_nl80211_data *drv = bss->drv; 8336 8337 wpa_printf(MSG_DEBUG, "nl80211: Teardown AP(%s) - device_ap_sme=%d use_monitor=%d", 8338 bss->ifname, drv->device_ap_sme, drv->use_monitor); 8339 if (drv->device_ap_sme) { 8340 wpa_driver_nl80211_probe_req_report(bss, 0); 8341 if (!drv->use_monitor) 8342 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)"); 8343 } else if (drv->use_monitor) 8344 nl80211_remove_monitor_interface(drv); 8345 else 8346 nl80211_mgmt_unsubscribe(bss, "AP teardown"); 8347 8348 bss->beacon_set = 0; 8349} 8350 8351 8352static int nl80211_send_eapol_data(struct i802_bss *bss, 8353 const u8 *addr, const u8 *data, 8354 size_t data_len) 8355{ 8356 struct sockaddr_ll ll; 8357 int ret; 8358 8359 if (bss->drv->eapol_tx_sock < 0) { 8360 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL"); 8361 return -1; 8362 } 8363 8364 os_memset(&ll, 0, sizeof(ll)); 8365 ll.sll_family = AF_PACKET; 8366 ll.sll_ifindex = bss->ifindex; 8367 ll.sll_protocol = htons(ETH_P_PAE); 8368 ll.sll_halen = ETH_ALEN; 8369 os_memcpy(ll.sll_addr, addr, ETH_ALEN); 8370 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0, 8371 (struct sockaddr *) &ll, sizeof(ll)); 8372 if (ret < 0) 8373 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s", 8374 strerror(errno)); 8375 8376 return ret; 8377} 8378 8379 8380static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 8381 8382static int wpa_driver_nl80211_hapd_send_eapol( 8383 void *priv, const u8 *addr, const u8 *data, 8384 size_t data_len, int encrypt, const u8 *own_addr, u32 flags) 8385{ 8386 struct i802_bss *bss = priv; 8387 struct wpa_driver_nl80211_data *drv = bss->drv; 8388 struct ieee80211_hdr *hdr; 8389 size_t len; 8390 u8 *pos; 8391 int res; 8392 int qos = flags & WPA_STA_WMM; 8393 8394 if (drv->device_ap_sme || !drv->use_monitor) 8395 return nl80211_send_eapol_data(bss, addr, data, data_len); 8396 8397 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 + 8398 data_len; 8399 hdr = os_zalloc(len); 8400 if (hdr == NULL) { 8401 wpa_printf(MSG_INFO, "nl80211: Failed to allocate EAPOL buffer(len=%lu)", 8402 (unsigned long) len); 8403 return -1; 8404 } 8405 8406 hdr->frame_control = 8407 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA); 8408 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS); 8409 if (encrypt) 8410 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP); 8411 if (qos) { 8412 hdr->frame_control |= 8413 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4); 8414 } 8415 8416 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN); 8417 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 8418 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 8419 pos = (u8 *) (hdr + 1); 8420 8421 if (qos) { 8422 /* Set highest priority in QoS header */ 8423 pos[0] = 7; 8424 pos[1] = 0; 8425 pos += 2; 8426 } 8427 8428 memcpy(pos, rfc1042_header, sizeof(rfc1042_header)); 8429 pos += sizeof(rfc1042_header); 8430 WPA_PUT_BE16(pos, ETH_P_PAE); 8431 pos += 2; 8432 memcpy(pos, data, data_len); 8433 8434 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0, 8435 0, 0, 0, 0); 8436 if (res < 0) { 8437 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - " 8438 "failed: %d (%s)", 8439 (unsigned long) len, errno, strerror(errno)); 8440 } 8441 os_free(hdr); 8442 8443 return res; 8444} 8445 8446 8447static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr, 8448 int total_flags, 8449 int flags_or, int flags_and) 8450{ 8451 struct i802_bss *bss = priv; 8452 struct wpa_driver_nl80211_data *drv = bss->drv; 8453 struct nl_msg *msg; 8454 struct nlattr *flags; 8455 struct nl80211_sta_flag_update upd; 8456 8457 msg = nlmsg_alloc(); 8458 if (!msg) 8459 return -ENOMEM; 8460 8461 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8462 8463 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8464 if_nametoindex(bss->ifname)); 8465 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8466 8467 /* 8468 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This 8469 * can be removed eventually. 8470 */ 8471 flags = nla_nest_start(msg, NL80211_ATTR_STA_FLAGS); 8472 if (!flags) 8473 goto nla_put_failure; 8474 if (total_flags & WPA_STA_AUTHORIZED) 8475 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_AUTHORIZED); 8476 8477 if (total_flags & WPA_STA_WMM) 8478 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_WME); 8479 8480 if (total_flags & WPA_STA_SHORT_PREAMBLE) 8481 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_SHORT_PREAMBLE); 8482 8483 if (total_flags & WPA_STA_MFP) 8484 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_MFP); 8485 8486 if (total_flags & WPA_STA_TDLS_PEER) 8487 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_TDLS_PEER); 8488 8489 nla_nest_end(msg, flags); 8490 8491 os_memset(&upd, 0, sizeof(upd)); 8492 upd.mask = sta_flags_nl80211(flags_or | ~flags_and); 8493 upd.set = sta_flags_nl80211(flags_or); 8494 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 8495 8496 return send_and_recv_msgs(drv, msg, NULL, NULL); 8497 nla_put_failure: 8498 nlmsg_free(msg); 8499 return -ENOBUFS; 8500} 8501 8502 8503static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv, 8504 struct wpa_driver_associate_params *params) 8505{ 8506 enum nl80211_iftype nlmode, old_mode; 8507 struct hostapd_freq_params freq = { 8508 .freq = params->freq, 8509 }; 8510 8511 if (params->p2p) { 8512 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P " 8513 "group (GO)"); 8514 nlmode = NL80211_IFTYPE_P2P_GO; 8515 } else 8516 nlmode = NL80211_IFTYPE_AP; 8517 8518 old_mode = drv->nlmode; 8519 if (wpa_driver_nl80211_set_mode(drv->first_bss, nlmode)) { 8520 nl80211_remove_monitor_interface(drv); 8521 return -1; 8522 } 8523 8524 if (nl80211_set_channel(drv->first_bss, &freq, 0)) { 8525 if (old_mode != nlmode) 8526 wpa_driver_nl80211_set_mode(drv->first_bss, old_mode); 8527 nl80211_remove_monitor_interface(drv); 8528 return -1; 8529 } 8530 8531 return 0; 8532} 8533 8534 8535static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv) 8536{ 8537 struct nl_msg *msg; 8538 int ret = -1; 8539 8540 msg = nlmsg_alloc(); 8541 if (!msg) 8542 return -1; 8543 8544 nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS); 8545 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8546 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8547 msg = NULL; 8548 if (ret) { 8549 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d " 8550 "(%s)", ret, strerror(-ret)); 8551 goto nla_put_failure; 8552 } 8553 8554 ret = 0; 8555 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully"); 8556 8557nla_put_failure: 8558 if (wpa_driver_nl80211_set_mode(drv->first_bss, 8559 NL80211_IFTYPE_STATION)) { 8560 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 8561 "station mode"); 8562 } 8563 8564 nlmsg_free(msg); 8565 return ret; 8566} 8567 8568 8569static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv, 8570 struct wpa_driver_associate_params *params) 8571{ 8572 struct nl_msg *msg; 8573 int ret = -1; 8574 int count = 0; 8575 8576 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex); 8577 8578 if (wpa_driver_nl80211_set_mode(drv->first_bss, 8579 NL80211_IFTYPE_ADHOC)) { 8580 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 8581 "IBSS mode"); 8582 return -1; 8583 } 8584 8585retry: 8586 msg = nlmsg_alloc(); 8587 if (!msg) 8588 return -1; 8589 8590 nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS); 8591 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8592 8593 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid)) 8594 goto nla_put_failure; 8595 8596 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 8597 params->ssid, params->ssid_len); 8598 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 8599 params->ssid); 8600 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 8601 drv->ssid_len = params->ssid_len; 8602 8603 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 8604 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 8605 8606 if (params->beacon_int > 0) { 8607 wpa_printf(MSG_DEBUG, " * beacon_int=%d", params->beacon_int); 8608 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, 8609 params->beacon_int); 8610 } 8611 8612 ret = nl80211_set_conn_keys(params, msg); 8613 if (ret) 8614 goto nla_put_failure; 8615 8616 if (params->bssid && params->fixed_bssid) { 8617 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR, 8618 MAC2STR(params->bssid)); 8619 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 8620 } 8621 8622 if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X || 8623 params->key_mgmt_suite == WPA_KEY_MGMT_PSK || 8624 params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 || 8625 params->key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256) { 8626 wpa_printf(MSG_DEBUG, " * control port"); 8627 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 8628 } 8629 8630 if (params->wpa_ie) { 8631 wpa_hexdump(MSG_DEBUG, 8632 " * Extra IEs for Beacon/Probe Response frames", 8633 params->wpa_ie, params->wpa_ie_len); 8634 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 8635 params->wpa_ie); 8636 } 8637 8638 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8639 msg = NULL; 8640 if (ret) { 8641 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)", 8642 ret, strerror(-ret)); 8643 count++; 8644 if (ret == -EALREADY && count == 1) { 8645 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after " 8646 "forced leave"); 8647 nl80211_leave_ibss(drv); 8648 nlmsg_free(msg); 8649 goto retry; 8650 } 8651 8652 goto nla_put_failure; 8653 } 8654 ret = 0; 8655 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully"); 8656 8657nla_put_failure: 8658 nlmsg_free(msg); 8659 return ret; 8660} 8661 8662 8663static int nl80211_connect_common(struct wpa_driver_nl80211_data *drv, 8664 struct wpa_driver_associate_params *params, 8665 struct nl_msg *msg) 8666{ 8667 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8668 8669 if (params->bssid) { 8670 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 8671 MAC2STR(params->bssid)); 8672 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 8673 } 8674 8675 if (params->bssid_hint) { 8676 wpa_printf(MSG_DEBUG, " * bssid_hint=" MACSTR, 8677 MAC2STR(params->bssid_hint)); 8678 NLA_PUT(msg, NL80211_ATTR_MAC_HINT, ETH_ALEN, 8679 params->bssid_hint); 8680 } 8681 8682 if (params->freq) { 8683 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 8684 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 8685 drv->assoc_freq = params->freq; 8686 } else 8687 drv->assoc_freq = 0; 8688 8689 if (params->freq_hint) { 8690 wpa_printf(MSG_DEBUG, " * freq_hint=%d", params->freq_hint); 8691 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ_HINT, 8692 params->freq_hint); 8693 } 8694 8695 if (params->bg_scan_period >= 0) { 8696 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 8697 params->bg_scan_period); 8698 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 8699 params->bg_scan_period); 8700 } 8701 8702 if (params->ssid) { 8703 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 8704 params->ssid, params->ssid_len); 8705 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 8706 params->ssid); 8707 if (params->ssid_len > sizeof(drv->ssid)) 8708 goto nla_put_failure; 8709 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 8710 drv->ssid_len = params->ssid_len; 8711 } 8712 8713 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 8714 if (params->wpa_ie) 8715 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 8716 params->wpa_ie); 8717 8718 if (params->wpa_proto) { 8719 enum nl80211_wpa_versions ver = 0; 8720 8721 if (params->wpa_proto & WPA_PROTO_WPA) 8722 ver |= NL80211_WPA_VERSION_1; 8723 if (params->wpa_proto & WPA_PROTO_RSN) 8724 ver |= NL80211_WPA_VERSION_2; 8725 8726 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver); 8727 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 8728 } 8729 8730 if (params->pairwise_suite != WPA_CIPHER_NONE) { 8731 u32 cipher = wpa_cipher_to_cipher_suite(params->pairwise_suite); 8732 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher); 8733 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); 8734 } 8735 8736 if (params->group_suite == WPA_CIPHER_GTK_NOT_USED && 8737 !(drv->capa.enc & WPA_DRIVER_CAPA_ENC_GTK_NOT_USED)) { 8738 /* 8739 * This is likely to work even though many drivers do not 8740 * advertise support for operations without GTK. 8741 */ 8742 wpa_printf(MSG_DEBUG, " * skip group cipher configuration for GTK_NOT_USED due to missing driver support advertisement"); 8743 } else if (params->group_suite != WPA_CIPHER_NONE) { 8744 u32 cipher = wpa_cipher_to_cipher_suite(params->group_suite); 8745 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher); 8746 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); 8747 } 8748 8749 if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X || 8750 params->key_mgmt_suite == WPA_KEY_MGMT_PSK || 8751 params->key_mgmt_suite == WPA_KEY_MGMT_FT_IEEE8021X || 8752 params->key_mgmt_suite == WPA_KEY_MGMT_FT_PSK || 8753 params->key_mgmt_suite == WPA_KEY_MGMT_CCKM || 8754 params->key_mgmt_suite == WPA_KEY_MGMT_OSEN || 8755 params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 || 8756 params->key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256) { 8757 int mgmt = WLAN_AKM_SUITE_PSK; 8758 8759 switch (params->key_mgmt_suite) { 8760 case WPA_KEY_MGMT_CCKM: 8761 mgmt = WLAN_AKM_SUITE_CCKM; 8762 break; 8763 case WPA_KEY_MGMT_IEEE8021X: 8764 mgmt = WLAN_AKM_SUITE_8021X; 8765 break; 8766 case WPA_KEY_MGMT_FT_IEEE8021X: 8767 mgmt = WLAN_AKM_SUITE_FT_8021X; 8768 break; 8769 case WPA_KEY_MGMT_FT_PSK: 8770 mgmt = WLAN_AKM_SUITE_FT_PSK; 8771 break; 8772 case WPA_KEY_MGMT_IEEE8021X_SHA256: 8773 mgmt = WLAN_AKM_SUITE_8021X_SHA256; 8774 break; 8775 case WPA_KEY_MGMT_PSK_SHA256: 8776 mgmt = WLAN_AKM_SUITE_PSK_SHA256; 8777 break; 8778 case WPA_KEY_MGMT_OSEN: 8779 mgmt = WLAN_AKM_SUITE_OSEN; 8780 break; 8781 case WPA_KEY_MGMT_PSK: 8782 default: 8783 mgmt = WLAN_AKM_SUITE_PSK; 8784 break; 8785 } 8786 wpa_printf(MSG_DEBUG, " * akm=0x%x", mgmt); 8787 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt); 8788 } 8789 8790 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 8791 8792 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) 8793 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); 8794 8795 if (params->disable_ht) 8796 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); 8797 8798 if (params->htcaps && params->htcaps_mask) { 8799 int sz = sizeof(struct ieee80211_ht_capabilities); 8800 wpa_hexdump(MSG_DEBUG, " * htcaps", params->htcaps, sz); 8801 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); 8802 wpa_hexdump(MSG_DEBUG, " * htcaps_mask", 8803 params->htcaps_mask, sz); 8804 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 8805 params->htcaps_mask); 8806 } 8807 8808#ifdef CONFIG_VHT_OVERRIDES 8809 if (params->disable_vht) { 8810 wpa_printf(MSG_DEBUG, " * VHT disabled"); 8811 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT); 8812 } 8813 8814 if (params->vhtcaps && params->vhtcaps_mask) { 8815 int sz = sizeof(struct ieee80211_vht_capabilities); 8816 wpa_hexdump(MSG_DEBUG, " * vhtcaps", params->vhtcaps, sz); 8817 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps); 8818 wpa_hexdump(MSG_DEBUG, " * vhtcaps_mask", 8819 params->vhtcaps_mask, sz); 8820 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 8821 params->vhtcaps_mask); 8822 } 8823#endif /* CONFIG_VHT_OVERRIDES */ 8824 8825 if (params->p2p) 8826 wpa_printf(MSG_DEBUG, " * P2P group"); 8827 8828 return 0; 8829nla_put_failure: 8830 return -1; 8831} 8832 8833 8834static int wpa_driver_nl80211_try_connect( 8835 struct wpa_driver_nl80211_data *drv, 8836 struct wpa_driver_associate_params *params) 8837{ 8838 struct nl_msg *msg; 8839 enum nl80211_auth_type type; 8840 int ret; 8841 int algs; 8842 8843 msg = nlmsg_alloc(); 8844 if (!msg) 8845 return -1; 8846 8847 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex); 8848 nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT); 8849 8850 ret = nl80211_connect_common(drv, params, msg); 8851 if (ret) 8852 goto nla_put_failure; 8853 8854 algs = 0; 8855 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 8856 algs++; 8857 if (params->auth_alg & WPA_AUTH_ALG_SHARED) 8858 algs++; 8859 if (params->auth_alg & WPA_AUTH_ALG_LEAP) 8860 algs++; 8861 if (algs > 1) { 8862 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic " 8863 "selection"); 8864 goto skip_auth_type; 8865 } 8866 8867 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 8868 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 8869 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 8870 type = NL80211_AUTHTYPE_SHARED_KEY; 8871 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 8872 type = NL80211_AUTHTYPE_NETWORK_EAP; 8873 else if (params->auth_alg & WPA_AUTH_ALG_FT) 8874 type = NL80211_AUTHTYPE_FT; 8875 else 8876 goto nla_put_failure; 8877 8878 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 8879 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 8880 8881skip_auth_type: 8882 ret = nl80211_set_conn_keys(params, msg); 8883 if (ret) 8884 goto nla_put_failure; 8885 8886 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8887 msg = NULL; 8888 if (ret) { 8889 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d " 8890 "(%s)", ret, strerror(-ret)); 8891 goto nla_put_failure; 8892 } 8893 ret = 0; 8894 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully"); 8895 8896nla_put_failure: 8897 nlmsg_free(msg); 8898 return ret; 8899 8900} 8901 8902 8903static int wpa_driver_nl80211_connect( 8904 struct wpa_driver_nl80211_data *drv, 8905 struct wpa_driver_associate_params *params) 8906{ 8907 int ret = wpa_driver_nl80211_try_connect(drv, params); 8908 if (ret == -EALREADY) { 8909 /* 8910 * cfg80211 does not currently accept new connections if 8911 * we are already connected. As a workaround, force 8912 * disconnection and try again. 8913 */ 8914 wpa_printf(MSG_DEBUG, "nl80211: Explicitly " 8915 "disconnecting before reassociation " 8916 "attempt"); 8917 if (wpa_driver_nl80211_disconnect( 8918 drv, WLAN_REASON_PREV_AUTH_NOT_VALID)) 8919 return -1; 8920 ret = wpa_driver_nl80211_try_connect(drv, params); 8921 } 8922 return ret; 8923} 8924 8925 8926static int wpa_driver_nl80211_associate( 8927 void *priv, struct wpa_driver_associate_params *params) 8928{ 8929 struct i802_bss *bss = priv; 8930 struct wpa_driver_nl80211_data *drv = bss->drv; 8931 int ret; 8932 struct nl_msg *msg; 8933 8934 if (params->mode == IEEE80211_MODE_AP) 8935 return wpa_driver_nl80211_ap(drv, params); 8936 8937 if (params->mode == IEEE80211_MODE_IBSS) 8938 return wpa_driver_nl80211_ibss(drv, params); 8939 8940 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) { 8941 enum nl80211_iftype nlmode = params->p2p ? 8942 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 8943 8944 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0) 8945 return -1; 8946 return wpa_driver_nl80211_connect(drv, params); 8947 } 8948 8949 nl80211_mark_disconnected(drv); 8950 8951 msg = nlmsg_alloc(); 8952 if (!msg) 8953 return -1; 8954 8955 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)", 8956 drv->ifindex); 8957 nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE); 8958 8959 ret = nl80211_connect_common(drv, params, msg); 8960 if (ret) 8961 goto nla_put_failure; 8962 8963 if (params->prev_bssid) { 8964 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR, 8965 MAC2STR(params->prev_bssid)); 8966 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN, 8967 params->prev_bssid); 8968 } 8969 8970 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8971 msg = NULL; 8972 if (ret) { 8973 wpa_dbg(drv->ctx, MSG_DEBUG, 8974 "nl80211: MLME command failed (assoc): ret=%d (%s)", 8975 ret, strerror(-ret)); 8976 nl80211_dump_scan(drv); 8977 goto nla_put_failure; 8978 } 8979 ret = 0; 8980 wpa_printf(MSG_DEBUG, "nl80211: Association request send " 8981 "successfully"); 8982 8983nla_put_failure: 8984 nlmsg_free(msg); 8985 return ret; 8986} 8987 8988 8989static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv, 8990 int ifindex, enum nl80211_iftype mode) 8991{ 8992 struct nl_msg *msg; 8993 int ret = -ENOBUFS; 8994 8995 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)", 8996 ifindex, mode, nl80211_iftype_str(mode)); 8997 8998 msg = nlmsg_alloc(); 8999 if (!msg) 9000 return -ENOMEM; 9001 9002 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE); 9003 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 9004 goto nla_put_failure; 9005 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode); 9006 9007 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9008 msg = NULL; 9009 if (!ret) 9010 return 0; 9011nla_put_failure: 9012 nlmsg_free(msg); 9013 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:" 9014 " %d (%s)", ifindex, mode, ret, strerror(-ret)); 9015 return ret; 9016} 9017 9018 9019static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 9020 enum nl80211_iftype nlmode) 9021{ 9022 struct wpa_driver_nl80211_data *drv = bss->drv; 9023 int ret = -1; 9024 int i; 9025 int was_ap = is_ap_interface(drv->nlmode); 9026 int res; 9027 9028 res = nl80211_set_mode(drv, drv->ifindex, nlmode); 9029 if (res && nlmode == nl80211_get_ifmode(bss)) 9030 res = 0; 9031 9032 if (res == 0) { 9033 drv->nlmode = nlmode; 9034 ret = 0; 9035 goto done; 9036 } 9037 9038 if (res == -ENODEV) 9039 return -1; 9040 9041 if (nlmode == drv->nlmode) { 9042 wpa_printf(MSG_DEBUG, "nl80211: Interface already in " 9043 "requested mode - ignore error"); 9044 ret = 0; 9045 goto done; /* Already in the requested mode */ 9046 } 9047 9048 /* mac80211 doesn't allow mode changes while the device is up, so 9049 * take the device down, try to set the mode again, and bring the 9050 * device back up. 9051 */ 9052 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting " 9053 "interface down"); 9054 for (i = 0; i < 10; i++) { 9055 res = i802_set_iface_flags(bss, 0); 9056 if (res == -EACCES || res == -ENODEV) 9057 break; 9058 if (res == 0) { 9059 /* Try to set the mode again while the interface is 9060 * down */ 9061 ret = nl80211_set_mode(drv, drv->ifindex, nlmode); 9062 if (ret == -EACCES) 9063 break; 9064 res = i802_set_iface_flags(bss, 1); 9065 if (res && !ret) 9066 ret = -1; 9067 else if (ret != -EBUSY) 9068 break; 9069 } else 9070 wpa_printf(MSG_DEBUG, "nl80211: Failed to set " 9071 "interface down"); 9072 os_sleep(0, 100000); 9073 } 9074 9075 if (!ret) { 9076 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while " 9077 "interface is down"); 9078 drv->nlmode = nlmode; 9079 drv->ignore_if_down_event = 1; 9080 } 9081 9082done: 9083 if (ret) { 9084 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d " 9085 "from %d failed", nlmode, drv->nlmode); 9086 return ret; 9087 } 9088 9089 if (is_p2p_net_interface(nlmode)) 9090 nl80211_disable_11b_rates(drv, drv->ifindex, 1); 9091 else if (drv->disabled_11b_rates) 9092 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 9093 9094 if (is_ap_interface(nlmode)) { 9095 nl80211_mgmt_unsubscribe(bss, "start AP"); 9096 /* Setup additional AP mode functionality if needed */ 9097 if (nl80211_setup_ap(bss)) 9098 return -1; 9099 } else if (was_ap) { 9100 /* Remove additional AP mode functionality */ 9101 nl80211_teardown_ap(bss); 9102 } else { 9103 nl80211_mgmt_unsubscribe(bss, "mode change"); 9104 } 9105 9106 if (!bss->in_deinit && !is_ap_interface(nlmode) && 9107 nl80211_mgmt_subscribe_non_ap(bss) < 0) 9108 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action " 9109 "frame processing - ignore for now"); 9110 9111 return 0; 9112} 9113 9114 9115static int dfs_info_handler(struct nl_msg *msg, void *arg) 9116{ 9117 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9118 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9119 int *dfs_capability_ptr = arg; 9120 9121 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9122 genlmsg_attrlen(gnlh, 0), NULL); 9123 9124 if (tb[NL80211_ATTR_VENDOR_DATA]) { 9125 struct nlattr *nl_vend = tb[NL80211_ATTR_VENDOR_DATA]; 9126 struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_MAX + 1]; 9127 9128 nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_MAX, 9129 nla_data(nl_vend), nla_len(nl_vend), NULL); 9130 9131 if (tb_vendor[QCA_WLAN_VENDOR_ATTR_DFS]) { 9132 u32 val; 9133 val = nla_get_u32(tb_vendor[QCA_WLAN_VENDOR_ATTR_DFS]); 9134 wpa_printf(MSG_DEBUG, "nl80211: DFS offload capability: %u", 9135 val); 9136 *dfs_capability_ptr = val; 9137 } 9138 } 9139 9140 return NL_SKIP; 9141} 9142 9143 9144static int wpa_driver_nl80211_get_capa(void *priv, 9145 struct wpa_driver_capa *capa) 9146{ 9147 struct i802_bss *bss = priv; 9148 struct wpa_driver_nl80211_data *drv = bss->drv; 9149 struct nl_msg *msg; 9150 int dfs_capability = 0; 9151 int ret = 0; 9152 9153 if (!drv->has_capability) 9154 return -1; 9155 os_memcpy(capa, &drv->capa, sizeof(*capa)); 9156 if (drv->extended_capa && drv->extended_capa_mask) { 9157 capa->extended_capa = drv->extended_capa; 9158 capa->extended_capa_mask = drv->extended_capa_mask; 9159 capa->extended_capa_len = drv->extended_capa_len; 9160 } 9161 9162 if ((capa->flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) && 9163 !drv->allow_p2p_device) { 9164 wpa_printf(MSG_DEBUG, "nl80211: Do not indicate P2P_DEVICE support (p2p_device=1 driver param not specified)"); 9165 capa->flags &= ~WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 9166 } 9167 9168 if (drv->dfs_vendor_cmd_avail == 1) { 9169 msg = nlmsg_alloc(); 9170 if (!msg) 9171 return -ENOMEM; 9172 9173 nl80211_cmd(drv, msg, 0, NL80211_CMD_VENDOR); 9174 9175 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9176 NLA_PUT_U32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA); 9177 NLA_PUT_U32(msg, NL80211_ATTR_VENDOR_SUBCMD, 9178 QCA_NL80211_VENDOR_SUBCMD_DFS_CAPABILITY); 9179 9180 ret = send_and_recv_msgs(drv, msg, dfs_info_handler, 9181 &dfs_capability); 9182 if (!ret) { 9183 if (dfs_capability) 9184 capa->flags |= WPA_DRIVER_FLAGS_DFS_OFFLOAD; 9185 } 9186 } 9187 9188 return ret; 9189 9190 nla_put_failure: 9191 nlmsg_free(msg); 9192 return -ENOBUFS; 9193} 9194 9195 9196static int wpa_driver_nl80211_set_operstate(void *priv, int state) 9197{ 9198 struct i802_bss *bss = priv; 9199 struct wpa_driver_nl80211_data *drv = bss->drv; 9200 9201 wpa_printf(MSG_DEBUG, "nl80211: Set %s operstate %d->%d (%s)", 9202 bss->ifname, drv->operstate, state, 9203 state ? "UP" : "DORMANT"); 9204 drv->operstate = state; 9205 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1, 9206 state ? IF_OPER_UP : IF_OPER_DORMANT); 9207} 9208 9209 9210static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized) 9211{ 9212 struct i802_bss *bss = priv; 9213 struct wpa_driver_nl80211_data *drv = bss->drv; 9214 struct nl_msg *msg; 9215 struct nl80211_sta_flag_update upd; 9216 int ret = -ENOBUFS; 9217 9218 if (!drv->associated && is_zero_ether_addr(drv->bssid) && !authorized) { 9219 wpa_printf(MSG_DEBUG, "nl80211: Skip set_supp_port(unauthorized) while not associated"); 9220 return 0; 9221 } 9222 9223 wpa_printf(MSG_DEBUG, "nl80211: Set supplicant port %sauthorized for " 9224 MACSTR, authorized ? "" : "un", MAC2STR(drv->bssid)); 9225 9226 msg = nlmsg_alloc(); 9227 if (!msg) 9228 return -ENOMEM; 9229 9230 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 9231 9232 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 9233 if_nametoindex(bss->ifname)); 9234 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 9235 9236 os_memset(&upd, 0, sizeof(upd)); 9237 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED); 9238 if (authorized) 9239 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED); 9240 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 9241 9242 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9243 msg = NULL; 9244 if (!ret) 9245 return 0; 9246 nla_put_failure: 9247 nlmsg_free(msg); 9248 wpa_printf(MSG_DEBUG, "nl80211: Failed to set STA flag: %d (%s)", 9249 ret, strerror(-ret)); 9250 return ret; 9251} 9252 9253 9254/* Set kernel driver on given frequency (MHz) */ 9255static int i802_set_freq(void *priv, struct hostapd_freq_params *freq) 9256{ 9257 struct i802_bss *bss = priv; 9258 return nl80211_set_channel(bss, freq, 0); 9259} 9260 9261 9262static inline int min_int(int a, int b) 9263{ 9264 if (a < b) 9265 return a; 9266 return b; 9267} 9268 9269 9270static int get_key_handler(struct nl_msg *msg, void *arg) 9271{ 9272 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9273 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9274 9275 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9276 genlmsg_attrlen(gnlh, 0), NULL); 9277 9278 /* 9279 * TODO: validate the key index and mac address! 9280 * Otherwise, there's a race condition as soon as 9281 * the kernel starts sending key notifications. 9282 */ 9283 9284 if (tb[NL80211_ATTR_KEY_SEQ]) 9285 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]), 9286 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6)); 9287 return NL_SKIP; 9288} 9289 9290 9291static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr, 9292 int idx, u8 *seq) 9293{ 9294 struct i802_bss *bss = priv; 9295 struct wpa_driver_nl80211_data *drv = bss->drv; 9296 struct nl_msg *msg; 9297 9298 msg = nlmsg_alloc(); 9299 if (!msg) 9300 return -ENOMEM; 9301 9302 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY); 9303 9304 if (addr) 9305 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 9306 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx); 9307 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface)); 9308 9309 memset(seq, 0, 6); 9310 9311 return send_and_recv_msgs(drv, msg, get_key_handler, seq); 9312 nla_put_failure: 9313 nlmsg_free(msg); 9314 return -ENOBUFS; 9315} 9316 9317 9318static int i802_set_rts(void *priv, int rts) 9319{ 9320 struct i802_bss *bss = priv; 9321 struct wpa_driver_nl80211_data *drv = bss->drv; 9322 struct nl_msg *msg; 9323 int ret = -ENOBUFS; 9324 u32 val; 9325 9326 msg = nlmsg_alloc(); 9327 if (!msg) 9328 return -ENOMEM; 9329 9330 if (rts >= 2347) 9331 val = (u32) -1; 9332 else 9333 val = rts; 9334 9335 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 9336 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9337 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val); 9338 9339 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9340 msg = NULL; 9341 if (!ret) 9342 return 0; 9343nla_put_failure: 9344 nlmsg_free(msg); 9345 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: " 9346 "%d (%s)", rts, ret, strerror(-ret)); 9347 return ret; 9348} 9349 9350 9351static int i802_set_frag(void *priv, int frag) 9352{ 9353 struct i802_bss *bss = priv; 9354 struct wpa_driver_nl80211_data *drv = bss->drv; 9355 struct nl_msg *msg; 9356 int ret = -ENOBUFS; 9357 u32 val; 9358 9359 msg = nlmsg_alloc(); 9360 if (!msg) 9361 return -ENOMEM; 9362 9363 if (frag >= 2346) 9364 val = (u32) -1; 9365 else 9366 val = frag; 9367 9368 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 9369 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9370 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val); 9371 9372 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9373 msg = NULL; 9374 if (!ret) 9375 return 0; 9376nla_put_failure: 9377 nlmsg_free(msg); 9378 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold " 9379 "%d: %d (%s)", frag, ret, strerror(-ret)); 9380 return ret; 9381} 9382 9383 9384static int i802_flush(void *priv) 9385{ 9386 struct i802_bss *bss = priv; 9387 struct wpa_driver_nl80211_data *drv = bss->drv; 9388 struct nl_msg *msg; 9389 int res; 9390 9391 msg = nlmsg_alloc(); 9392 if (!msg) 9393 return -1; 9394 9395 wpa_printf(MSG_DEBUG, "nl80211: flush -> DEL_STATION %s (all)", 9396 bss->ifname); 9397 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 9398 9399 /* 9400 * XXX: FIX! this needs to flush all VLANs too 9401 */ 9402 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 9403 if_nametoindex(bss->ifname)); 9404 9405 res = send_and_recv_msgs(drv, msg, NULL, NULL); 9406 if (res) { 9407 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d " 9408 "(%s)", res, strerror(-res)); 9409 } 9410 return res; 9411 nla_put_failure: 9412 nlmsg_free(msg); 9413 return -ENOBUFS; 9414} 9415 9416 9417static int get_sta_handler(struct nl_msg *msg, void *arg) 9418{ 9419 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9420 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9421 struct hostap_sta_driver_data *data = arg; 9422 struct nlattr *stats[NL80211_STA_INFO_MAX + 1]; 9423 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = { 9424 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 }, 9425 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 }, 9426 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 }, 9427 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 }, 9428 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 }, 9429 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 }, 9430 }; 9431 9432 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9433 genlmsg_attrlen(gnlh, 0), NULL); 9434 9435 /* 9436 * TODO: validate the interface and mac address! 9437 * Otherwise, there's a race condition as soon as 9438 * the kernel starts sending station notifications. 9439 */ 9440 9441 if (!tb[NL80211_ATTR_STA_INFO]) { 9442 wpa_printf(MSG_DEBUG, "sta stats missing!"); 9443 return NL_SKIP; 9444 } 9445 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX, 9446 tb[NL80211_ATTR_STA_INFO], 9447 stats_policy)) { 9448 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!"); 9449 return NL_SKIP; 9450 } 9451 9452 if (stats[NL80211_STA_INFO_INACTIVE_TIME]) 9453 data->inactive_msec = 9454 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]); 9455 if (stats[NL80211_STA_INFO_RX_BYTES]) 9456 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]); 9457 if (stats[NL80211_STA_INFO_TX_BYTES]) 9458 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]); 9459 if (stats[NL80211_STA_INFO_RX_PACKETS]) 9460 data->rx_packets = 9461 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]); 9462 if (stats[NL80211_STA_INFO_TX_PACKETS]) 9463 data->tx_packets = 9464 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]); 9465 if (stats[NL80211_STA_INFO_TX_FAILED]) 9466 data->tx_retry_failed = 9467 nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]); 9468 9469 return NL_SKIP; 9470} 9471 9472static int i802_read_sta_data(struct i802_bss *bss, 9473 struct hostap_sta_driver_data *data, 9474 const u8 *addr) 9475{ 9476 struct wpa_driver_nl80211_data *drv = bss->drv; 9477 struct nl_msg *msg; 9478 9479 os_memset(data, 0, sizeof(*data)); 9480 msg = nlmsg_alloc(); 9481 if (!msg) 9482 return -ENOMEM; 9483 9484 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 9485 9486 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 9487 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 9488 9489 return send_and_recv_msgs(drv, msg, get_sta_handler, data); 9490 nla_put_failure: 9491 nlmsg_free(msg); 9492 return -ENOBUFS; 9493} 9494 9495 9496static int i802_set_tx_queue_params(void *priv, int queue, int aifs, 9497 int cw_min, int cw_max, int burst_time) 9498{ 9499 struct i802_bss *bss = priv; 9500 struct wpa_driver_nl80211_data *drv = bss->drv; 9501 struct nl_msg *msg; 9502 struct nlattr *txq, *params; 9503 9504 msg = nlmsg_alloc(); 9505 if (!msg) 9506 return -1; 9507 9508 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 9509 9510 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 9511 9512 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS); 9513 if (!txq) 9514 goto nla_put_failure; 9515 9516 /* We are only sending parameters for a single TXQ at a time */ 9517 params = nla_nest_start(msg, 1); 9518 if (!params) 9519 goto nla_put_failure; 9520 9521 switch (queue) { 9522 case 0: 9523 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO); 9524 break; 9525 case 1: 9526 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI); 9527 break; 9528 case 2: 9529 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE); 9530 break; 9531 case 3: 9532 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK); 9533 break; 9534 } 9535 /* Burst time is configured in units of 0.1 msec and TXOP parameter in 9536 * 32 usec, so need to convert the value here. */ 9537 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32); 9538 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min); 9539 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max); 9540 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs); 9541 9542 nla_nest_end(msg, params); 9543 9544 nla_nest_end(msg, txq); 9545 9546 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 9547 return 0; 9548 msg = NULL; 9549 nla_put_failure: 9550 nlmsg_free(msg); 9551 return -1; 9552} 9553 9554 9555static int i802_set_sta_vlan(struct i802_bss *bss, const u8 *addr, 9556 const char *ifname, int vlan_id) 9557{ 9558 struct wpa_driver_nl80211_data *drv = bss->drv; 9559 struct nl_msg *msg; 9560 int ret = -ENOBUFS; 9561 9562 msg = nlmsg_alloc(); 9563 if (!msg) 9564 return -ENOMEM; 9565 9566 wpa_printf(MSG_DEBUG, "nl80211: %s[%d]: set_sta_vlan(" MACSTR 9567 ", ifname=%s[%d], vlan_id=%d)", 9568 bss->ifname, if_nametoindex(bss->ifname), 9569 MAC2STR(addr), ifname, if_nametoindex(ifname), vlan_id); 9570 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 9571 9572 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 9573 if_nametoindex(bss->ifname)); 9574 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 9575 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN, 9576 if_nametoindex(ifname)); 9577 9578 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9579 msg = NULL; 9580 if (ret < 0) { 9581 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr=" 9582 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)", 9583 MAC2STR(addr), ifname, vlan_id, ret, 9584 strerror(-ret)); 9585 } 9586 nla_put_failure: 9587 nlmsg_free(msg); 9588 return ret; 9589} 9590 9591 9592static int i802_get_inact_sec(void *priv, const u8 *addr) 9593{ 9594 struct hostap_sta_driver_data data; 9595 int ret; 9596 9597 data.inactive_msec = (unsigned long) -1; 9598 ret = i802_read_sta_data(priv, &data, addr); 9599 if (ret || data.inactive_msec == (unsigned long) -1) 9600 return -1; 9601 return data.inactive_msec / 1000; 9602} 9603 9604 9605static int i802_sta_clear_stats(void *priv, const u8 *addr) 9606{ 9607#if 0 9608 /* TODO */ 9609#endif 9610 return 0; 9611} 9612 9613 9614static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, 9615 int reason) 9616{ 9617 struct i802_bss *bss = priv; 9618 struct wpa_driver_nl80211_data *drv = bss->drv; 9619 struct ieee80211_mgmt mgmt; 9620 9621 if (drv->device_ap_sme) 9622 return wpa_driver_nl80211_sta_remove(bss, addr); 9623 9624 memset(&mgmt, 0, sizeof(mgmt)); 9625 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 9626 WLAN_FC_STYPE_DEAUTH); 9627 memcpy(mgmt.da, addr, ETH_ALEN); 9628 memcpy(mgmt.sa, own_addr, ETH_ALEN); 9629 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 9630 mgmt.u.deauth.reason_code = host_to_le16(reason); 9631 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 9632 IEEE80211_HDRLEN + 9633 sizeof(mgmt.u.deauth), 0, 0, 0, 0, 9634 0); 9635} 9636 9637 9638static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr, 9639 int reason) 9640{ 9641 struct i802_bss *bss = priv; 9642 struct wpa_driver_nl80211_data *drv = bss->drv; 9643 struct ieee80211_mgmt mgmt; 9644 9645 if (drv->device_ap_sme) 9646 return wpa_driver_nl80211_sta_remove(bss, addr); 9647 9648 memset(&mgmt, 0, sizeof(mgmt)); 9649 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 9650 WLAN_FC_STYPE_DISASSOC); 9651 memcpy(mgmt.da, addr, ETH_ALEN); 9652 memcpy(mgmt.sa, own_addr, ETH_ALEN); 9653 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 9654 mgmt.u.disassoc.reason_code = host_to_le16(reason); 9655 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 9656 IEEE80211_HDRLEN + 9657 sizeof(mgmt.u.disassoc), 0, 0, 0, 0, 9658 0); 9659} 9660 9661 9662static void dump_ifidx(struct wpa_driver_nl80211_data *drv) 9663{ 9664 char buf[200], *pos, *end; 9665 int i, res; 9666 9667 pos = buf; 9668 end = pos + sizeof(buf); 9669 9670 for (i = 0; i < drv->num_if_indices; i++) { 9671 if (!drv->if_indices[i]) 9672 continue; 9673 res = os_snprintf(pos, end - pos, " %d", drv->if_indices[i]); 9674 if (res < 0 || res >= end - pos) 9675 break; 9676 pos += res; 9677 } 9678 *pos = '\0'; 9679 9680 wpa_printf(MSG_DEBUG, "nl80211: if_indices[%d]:%s", 9681 drv->num_if_indices, buf); 9682} 9683 9684 9685static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 9686{ 9687 int i; 9688 int *old; 9689 9690 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d", 9691 ifidx); 9692 if (have_ifidx(drv, ifidx)) { 9693 wpa_printf(MSG_DEBUG, "nl80211: ifindex %d already in the list", 9694 ifidx); 9695 return; 9696 } 9697 for (i = 0; i < drv->num_if_indices; i++) { 9698 if (drv->if_indices[i] == 0) { 9699 drv->if_indices[i] = ifidx; 9700 dump_ifidx(drv); 9701 return; 9702 } 9703 } 9704 9705 if (drv->if_indices != drv->default_if_indices) 9706 old = drv->if_indices; 9707 else 9708 old = NULL; 9709 9710 drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1, 9711 sizeof(int)); 9712 if (!drv->if_indices) { 9713 if (!old) 9714 drv->if_indices = drv->default_if_indices; 9715 else 9716 drv->if_indices = old; 9717 wpa_printf(MSG_ERROR, "Failed to reallocate memory for " 9718 "interfaces"); 9719 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx); 9720 return; 9721 } else if (!old) 9722 os_memcpy(drv->if_indices, drv->default_if_indices, 9723 sizeof(drv->default_if_indices)); 9724 drv->if_indices[drv->num_if_indices] = ifidx; 9725 drv->num_if_indices++; 9726 dump_ifidx(drv); 9727} 9728 9729 9730static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 9731{ 9732 int i; 9733 9734 for (i = 0; i < drv->num_if_indices; i++) { 9735 if (drv->if_indices[i] == ifidx) { 9736 drv->if_indices[i] = 0; 9737 break; 9738 } 9739 } 9740 dump_ifidx(drv); 9741} 9742 9743 9744static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 9745{ 9746 int i; 9747 9748 for (i = 0; i < drv->num_if_indices; i++) 9749 if (drv->if_indices[i] == ifidx) 9750 return 1; 9751 9752 return 0; 9753} 9754 9755 9756static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val, 9757 const char *bridge_ifname, char *ifname_wds) 9758{ 9759 struct i802_bss *bss = priv; 9760 struct wpa_driver_nl80211_data *drv = bss->drv; 9761 char name[IFNAMSIZ + 1]; 9762 9763 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid); 9764 if (ifname_wds) 9765 os_strlcpy(ifname_wds, name, IFNAMSIZ + 1); 9766 9767 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR 9768 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name); 9769 if (val) { 9770 if (!if_nametoindex(name)) { 9771 if (nl80211_create_iface(drv, name, 9772 NL80211_IFTYPE_AP_VLAN, 9773 bss->addr, 1, NULL, NULL, 0) < 9774 0) 9775 return -1; 9776 if (bridge_ifname && 9777 linux_br_add_if(drv->global->ioctl_sock, 9778 bridge_ifname, name) < 0) 9779 return -1; 9780 } 9781 if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) { 9782 wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA " 9783 "interface %s up", name); 9784 } 9785 return i802_set_sta_vlan(priv, addr, name, 0); 9786 } else { 9787 if (bridge_ifname) 9788 linux_br_del_if(drv->global->ioctl_sock, bridge_ifname, 9789 name); 9790 9791 i802_set_sta_vlan(priv, addr, bss->ifname, 0); 9792 nl80211_remove_iface(drv, if_nametoindex(name)); 9793 return 0; 9794 } 9795} 9796 9797 9798static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx) 9799{ 9800 struct wpa_driver_nl80211_data *drv = eloop_ctx; 9801 struct sockaddr_ll lladdr; 9802 unsigned char buf[3000]; 9803 int len; 9804 socklen_t fromlen = sizeof(lladdr); 9805 9806 len = recvfrom(sock, buf, sizeof(buf), 0, 9807 (struct sockaddr *)&lladdr, &fromlen); 9808 if (len < 0) { 9809 wpa_printf(MSG_ERROR, "nl80211: EAPOL recv failed: %s", 9810 strerror(errno)); 9811 return; 9812 } 9813 9814 if (have_ifidx(drv, lladdr.sll_ifindex)) 9815 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len); 9816} 9817 9818 9819static int i802_check_bridge(struct wpa_driver_nl80211_data *drv, 9820 struct i802_bss *bss, 9821 const char *brname, const char *ifname) 9822{ 9823 int ifindex; 9824 char in_br[IFNAMSIZ]; 9825 9826 os_strlcpy(bss->brname, brname, IFNAMSIZ); 9827 ifindex = if_nametoindex(brname); 9828 if (ifindex == 0) { 9829 /* 9830 * Bridge was configured, but the bridge device does 9831 * not exist. Try to add it now. 9832 */ 9833 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) { 9834 wpa_printf(MSG_ERROR, "nl80211: Failed to add the " 9835 "bridge interface %s: %s", 9836 brname, strerror(errno)); 9837 return -1; 9838 } 9839 bss->added_bridge = 1; 9840 add_ifidx(drv, if_nametoindex(brname)); 9841 } 9842 9843 if (linux_br_get(in_br, ifname) == 0) { 9844 if (os_strcmp(in_br, brname) == 0) 9845 return 0; /* already in the bridge */ 9846 9847 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from " 9848 "bridge %s", ifname, in_br); 9849 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) < 9850 0) { 9851 wpa_printf(MSG_ERROR, "nl80211: Failed to " 9852 "remove interface %s from bridge " 9853 "%s: %s", 9854 ifname, brname, strerror(errno)); 9855 return -1; 9856 } 9857 } 9858 9859 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s", 9860 ifname, brname); 9861 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) { 9862 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s " 9863 "into bridge %s: %s", 9864 ifname, brname, strerror(errno)); 9865 return -1; 9866 } 9867 bss->added_if_into_bridge = 1; 9868 9869 return 0; 9870} 9871 9872 9873static void *i802_init(struct hostapd_data *hapd, 9874 struct wpa_init_params *params) 9875{ 9876 struct wpa_driver_nl80211_data *drv; 9877 struct i802_bss *bss; 9878 size_t i; 9879 char brname[IFNAMSIZ]; 9880 int ifindex, br_ifindex; 9881 int br_added = 0; 9882 9883 bss = wpa_driver_nl80211_drv_init(hapd, params->ifname, 9884 params->global_priv, 1, 9885 params->bssid); 9886 if (bss == NULL) 9887 return NULL; 9888 9889 drv = bss->drv; 9890 9891 if (linux_br_get(brname, params->ifname) == 0) { 9892 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s", 9893 params->ifname, brname); 9894 br_ifindex = if_nametoindex(brname); 9895 } else { 9896 brname[0] = '\0'; 9897 br_ifindex = 0; 9898 } 9899 9900 for (i = 0; i < params->num_bridge; i++) { 9901 if (params->bridge[i]) { 9902 ifindex = if_nametoindex(params->bridge[i]); 9903 if (ifindex) 9904 add_ifidx(drv, ifindex); 9905 if (ifindex == br_ifindex) 9906 br_added = 1; 9907 } 9908 } 9909 if (!br_added && br_ifindex && 9910 (params->num_bridge == 0 || !params->bridge[0])) 9911 add_ifidx(drv, br_ifindex); 9912 9913 /* start listening for EAPOL on the default AP interface */ 9914 add_ifidx(drv, drv->ifindex); 9915 9916 if (params->num_bridge && params->bridge[0] && 9917 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0) 9918 goto failed; 9919 9920 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE)); 9921 if (drv->eapol_sock < 0) { 9922 wpa_printf(MSG_ERROR, "nl80211: socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE) failed: %s", 9923 strerror(errno)); 9924 goto failed; 9925 } 9926 9927 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL)) 9928 { 9929 wpa_printf(MSG_INFO, "nl80211: Could not register read socket for eapol"); 9930 goto failed; 9931 } 9932 9933 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 9934 params->own_addr)) 9935 goto failed; 9936 9937 memcpy(bss->addr, params->own_addr, ETH_ALEN); 9938 9939 return bss; 9940 9941failed: 9942 wpa_driver_nl80211_deinit(bss); 9943 return NULL; 9944} 9945 9946 9947static void i802_deinit(void *priv) 9948{ 9949 struct i802_bss *bss = priv; 9950 wpa_driver_nl80211_deinit(bss); 9951} 9952 9953 9954static enum nl80211_iftype wpa_driver_nl80211_if_type( 9955 enum wpa_driver_if_type type) 9956{ 9957 switch (type) { 9958 case WPA_IF_STATION: 9959 return NL80211_IFTYPE_STATION; 9960 case WPA_IF_P2P_CLIENT: 9961 case WPA_IF_P2P_GROUP: 9962 return NL80211_IFTYPE_P2P_CLIENT; 9963 case WPA_IF_AP_VLAN: 9964 return NL80211_IFTYPE_AP_VLAN; 9965 case WPA_IF_AP_BSS: 9966 return NL80211_IFTYPE_AP; 9967 case WPA_IF_P2P_GO: 9968 return NL80211_IFTYPE_P2P_GO; 9969 case WPA_IF_P2P_DEVICE: 9970 return NL80211_IFTYPE_P2P_DEVICE; 9971 } 9972 return -1; 9973} 9974 9975 9976#ifdef CONFIG_P2P 9977 9978static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr) 9979{ 9980 struct wpa_driver_nl80211_data *drv; 9981 dl_list_for_each(drv, &global->interfaces, 9982 struct wpa_driver_nl80211_data, list) { 9983 if (os_memcmp(addr, drv->first_bss->addr, ETH_ALEN) == 0) 9984 return 1; 9985 } 9986 return 0; 9987} 9988 9989 9990static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv, 9991 u8 *new_addr) 9992{ 9993 unsigned int idx; 9994 9995 if (!drv->global) 9996 return -1; 9997 9998 os_memcpy(new_addr, drv->first_bss->addr, ETH_ALEN); 9999 for (idx = 0; idx < 64; idx++) { 10000 new_addr[0] = drv->first_bss->addr[0] | 0x02; 10001 new_addr[0] ^= idx << 2; 10002 if (!nl80211_addr_in_use(drv->global, new_addr)) 10003 break; 10004 } 10005 if (idx == 64) 10006 return -1; 10007 10008 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address " 10009 MACSTR, MAC2STR(new_addr)); 10010 10011 return 0; 10012} 10013 10014#endif /* CONFIG_P2P */ 10015 10016 10017struct wdev_info { 10018 u64 wdev_id; 10019 int wdev_id_set; 10020 u8 macaddr[ETH_ALEN]; 10021}; 10022 10023static int nl80211_wdev_handler(struct nl_msg *msg, void *arg) 10024{ 10025 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 10026 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 10027 struct wdev_info *wi = arg; 10028 10029 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 10030 genlmsg_attrlen(gnlh, 0), NULL); 10031 if (tb[NL80211_ATTR_WDEV]) { 10032 wi->wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 10033 wi->wdev_id_set = 1; 10034 } 10035 10036 if (tb[NL80211_ATTR_MAC]) 10037 os_memcpy(wi->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 10038 ETH_ALEN); 10039 10040 return NL_SKIP; 10041} 10042 10043 10044static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type, 10045 const char *ifname, const u8 *addr, 10046 void *bss_ctx, void **drv_priv, 10047 char *force_ifname, u8 *if_addr, 10048 const char *bridge, int use_existing) 10049{ 10050 enum nl80211_iftype nlmode; 10051 struct i802_bss *bss = priv; 10052 struct wpa_driver_nl80211_data *drv = bss->drv; 10053 int ifidx; 10054 int added = 1; 10055 10056 if (addr) 10057 os_memcpy(if_addr, addr, ETH_ALEN); 10058 nlmode = wpa_driver_nl80211_if_type(type); 10059 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { 10060 struct wdev_info p2pdev_info; 10061 10062 os_memset(&p2pdev_info, 0, sizeof(p2pdev_info)); 10063 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 10064 0, nl80211_wdev_handler, 10065 &p2pdev_info, use_existing); 10066 if (!p2pdev_info.wdev_id_set || ifidx != 0) { 10067 wpa_printf(MSG_ERROR, "nl80211: Failed to create a P2P Device interface %s", 10068 ifname); 10069 return -1; 10070 } 10071 10072 drv->global->if_add_wdevid = p2pdev_info.wdev_id; 10073 drv->global->if_add_wdevid_set = p2pdev_info.wdev_id_set; 10074 if (!is_zero_ether_addr(p2pdev_info.macaddr)) 10075 os_memcpy(if_addr, p2pdev_info.macaddr, ETH_ALEN); 10076 wpa_printf(MSG_DEBUG, "nl80211: New P2P Device interface %s (0x%llx) created", 10077 ifname, 10078 (long long unsigned int) p2pdev_info.wdev_id); 10079 } else { 10080 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 10081 0, NULL, NULL, use_existing); 10082 if (use_existing && ifidx == -ENFILE) { 10083 added = 0; 10084 ifidx = if_nametoindex(ifname); 10085 } else if (ifidx < 0) { 10086 return -1; 10087 } 10088 } 10089 10090 if (!addr) { 10091 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 10092 os_memcpy(if_addr, bss->addr, ETH_ALEN); 10093 else if (linux_get_ifhwaddr(drv->global->ioctl_sock, 10094 bss->ifname, if_addr) < 0) { 10095 if (added) 10096 nl80211_remove_iface(drv, ifidx); 10097 return -1; 10098 } 10099 } 10100 10101#ifdef CONFIG_P2P 10102 if (!addr && 10103 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP || 10104 type == WPA_IF_P2P_GO)) { 10105 /* Enforce unique P2P Interface Address */ 10106 u8 new_addr[ETH_ALEN]; 10107 10108 if (linux_get_ifhwaddr(drv->global->ioctl_sock, ifname, 10109 new_addr) < 0) { 10110 nl80211_remove_iface(drv, ifidx); 10111 return -1; 10112 } 10113 if (nl80211_addr_in_use(drv->global, new_addr)) { 10114 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address " 10115 "for P2P group interface"); 10116 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) { 10117 nl80211_remove_iface(drv, ifidx); 10118 return -1; 10119 } 10120 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 10121 new_addr) < 0) { 10122 nl80211_remove_iface(drv, ifidx); 10123 return -1; 10124 } 10125 } 10126 os_memcpy(if_addr, new_addr, ETH_ALEN); 10127 } 10128#endif /* CONFIG_P2P */ 10129 10130 if (type == WPA_IF_AP_BSS) { 10131 struct i802_bss *new_bss = os_zalloc(sizeof(*new_bss)); 10132 if (new_bss == NULL) { 10133 if (added) 10134 nl80211_remove_iface(drv, ifidx); 10135 return -1; 10136 } 10137 10138 if (bridge && 10139 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) { 10140 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new " 10141 "interface %s to a bridge %s", 10142 ifname, bridge); 10143 if (added) 10144 nl80211_remove_iface(drv, ifidx); 10145 os_free(new_bss); 10146 return -1; 10147 } 10148 10149 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1)) 10150 { 10151 nl80211_remove_iface(drv, ifidx); 10152 os_free(new_bss); 10153 return -1; 10154 } 10155 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ); 10156 os_memcpy(new_bss->addr, if_addr, ETH_ALEN); 10157 new_bss->ifindex = ifidx; 10158 new_bss->drv = drv; 10159 new_bss->next = drv->first_bss->next; 10160 new_bss->freq = drv->first_bss->freq; 10161 new_bss->ctx = bss_ctx; 10162 new_bss->added_if = added; 10163 drv->first_bss->next = new_bss; 10164 if (drv_priv) 10165 *drv_priv = new_bss; 10166 nl80211_init_bss(new_bss); 10167 10168 /* Subscribe management frames for this WPA_IF_AP_BSS */ 10169 if (nl80211_setup_ap(new_bss)) 10170 return -1; 10171 } 10172 10173 if (drv->global) 10174 drv->global->if_add_ifindex = ifidx; 10175 10176 if (ifidx > 0) 10177 add_ifidx(drv, ifidx); 10178 10179 return 0; 10180} 10181 10182 10183static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 10184 enum wpa_driver_if_type type, 10185 const char *ifname) 10186{ 10187 struct wpa_driver_nl80211_data *drv = bss->drv; 10188 int ifindex = if_nametoindex(ifname); 10189 10190 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d added_if=%d", 10191 __func__, type, ifname, ifindex, bss->added_if); 10192 if (ifindex > 0 && (bss->added_if || bss->ifindex != ifindex)) 10193 nl80211_remove_iface(drv, ifindex); 10194 else if (ifindex > 0 && !bss->added_if) { 10195 struct wpa_driver_nl80211_data *drv2; 10196 dl_list_for_each(drv2, &drv->global->interfaces, 10197 struct wpa_driver_nl80211_data, list) 10198 del_ifidx(drv2, ifindex); 10199 } 10200 10201 if (type != WPA_IF_AP_BSS) 10202 return 0; 10203 10204 if (bss->added_if_into_bridge) { 10205 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 10206 bss->ifname) < 0) 10207 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 10208 "interface %s from bridge %s: %s", 10209 bss->ifname, bss->brname, strerror(errno)); 10210 } 10211 if (bss->added_bridge) { 10212 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 10213 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 10214 "bridge %s: %s", 10215 bss->brname, strerror(errno)); 10216 } 10217 10218 if (bss != drv->first_bss) { 10219 struct i802_bss *tbss; 10220 10221 wpa_printf(MSG_DEBUG, "nl80211: Not the first BSS - remove it"); 10222 for (tbss = drv->first_bss; tbss; tbss = tbss->next) { 10223 if (tbss->next == bss) { 10224 tbss->next = bss->next; 10225 /* Unsubscribe management frames */ 10226 nl80211_teardown_ap(bss); 10227 nl80211_destroy_bss(bss); 10228 if (!bss->added_if) 10229 i802_set_iface_flags(bss, 0); 10230 os_free(bss); 10231 bss = NULL; 10232 break; 10233 } 10234 } 10235 if (bss) 10236 wpa_printf(MSG_INFO, "nl80211: %s - could not find " 10237 "BSS %p in the list", __func__, bss); 10238 } else { 10239 wpa_printf(MSG_DEBUG, "nl80211: First BSS - reassign context"); 10240 nl80211_teardown_ap(bss); 10241 if (!bss->added_if && !drv->first_bss->next) 10242 wpa_driver_nl80211_del_beacon(drv); 10243 nl80211_destroy_bss(bss); 10244 if (!bss->added_if) 10245 i802_set_iface_flags(bss, 0); 10246 if (drv->first_bss->next) { 10247 drv->first_bss = drv->first_bss->next; 10248 drv->ctx = drv->first_bss->ctx; 10249 os_free(bss); 10250 } else { 10251 wpa_printf(MSG_DEBUG, "nl80211: No second BSS to reassign context to"); 10252 } 10253 } 10254 10255 return 0; 10256} 10257 10258 10259static int cookie_handler(struct nl_msg *msg, void *arg) 10260{ 10261 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 10262 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 10263 u64 *cookie = arg; 10264 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 10265 genlmsg_attrlen(gnlh, 0), NULL); 10266 if (tb[NL80211_ATTR_COOKIE]) 10267 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 10268 return NL_SKIP; 10269} 10270 10271 10272static int nl80211_send_frame_cmd(struct i802_bss *bss, 10273 unsigned int freq, unsigned int wait, 10274 const u8 *buf, size_t buf_len, 10275 u64 *cookie_out, int no_cck, int no_ack, 10276 int offchanok) 10277{ 10278 struct wpa_driver_nl80211_data *drv = bss->drv; 10279 struct nl_msg *msg; 10280 u64 cookie; 10281 int ret = -1; 10282 10283 msg = nlmsg_alloc(); 10284 if (!msg) 10285 return -1; 10286 10287 wpa_printf(MSG_MSGDUMP, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d " 10288 "no_ack=%d offchanok=%d", 10289 freq, wait, no_cck, no_ack, offchanok); 10290 wpa_hexdump(MSG_MSGDUMP, "CMD_FRAME", buf, buf_len); 10291 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME); 10292 10293 if (nl80211_set_iface_id(msg, bss) < 0) 10294 goto nla_put_failure; 10295 if (freq) 10296 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 10297 if (wait) 10298 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait); 10299 if (offchanok && ((drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) || 10300 drv->test_use_roc_tx)) 10301 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK); 10302 if (no_cck) 10303 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 10304 if (no_ack) 10305 NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK); 10306 10307 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf); 10308 10309 cookie = 0; 10310 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 10311 msg = NULL; 10312 if (ret) { 10313 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d " 10314 "(%s) (freq=%u wait=%u)", ret, strerror(-ret), 10315 freq, wait); 10316 goto nla_put_failure; 10317 } 10318 wpa_printf(MSG_MSGDUMP, "nl80211: Frame TX command accepted%s; " 10319 "cookie 0x%llx", no_ack ? " (no ACK)" : "", 10320 (long long unsigned int) cookie); 10321 10322 if (cookie_out) 10323 *cookie_out = no_ack ? (u64) -1 : cookie; 10324 10325nla_put_failure: 10326 nlmsg_free(msg); 10327 return ret; 10328} 10329 10330 10331static int wpa_driver_nl80211_send_action(struct i802_bss *bss, 10332 unsigned int freq, 10333 unsigned int wait_time, 10334 const u8 *dst, const u8 *src, 10335 const u8 *bssid, 10336 const u8 *data, size_t data_len, 10337 int no_cck) 10338{ 10339 struct wpa_driver_nl80211_data *drv = bss->drv; 10340 int ret = -1; 10341 u8 *buf; 10342 struct ieee80211_hdr *hdr; 10343 10344 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, " 10345 "freq=%u MHz wait=%d ms no_cck=%d)", 10346 drv->ifindex, freq, wait_time, no_cck); 10347 10348 buf = os_zalloc(24 + data_len); 10349 if (buf == NULL) 10350 return ret; 10351 os_memcpy(buf + 24, data, data_len); 10352 hdr = (struct ieee80211_hdr *) buf; 10353 hdr->frame_control = 10354 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION); 10355 os_memcpy(hdr->addr1, dst, ETH_ALEN); 10356 os_memcpy(hdr->addr2, src, ETH_ALEN); 10357 os_memcpy(hdr->addr3, bssid, ETH_ALEN); 10358 10359 if (is_ap_interface(drv->nlmode) && 10360 (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) || 10361 (int) freq == bss->freq || drv->device_ap_sme || 10362 !drv->use_monitor)) 10363 ret = wpa_driver_nl80211_send_mlme(bss, buf, 24 + data_len, 10364 0, freq, no_cck, 1, 10365 wait_time); 10366 else 10367 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf, 10368 24 + data_len, 10369 &drv->send_action_cookie, 10370 no_cck, 0, 1); 10371 10372 os_free(buf); 10373 return ret; 10374} 10375 10376 10377static void wpa_driver_nl80211_send_action_cancel_wait(void *priv) 10378{ 10379 struct i802_bss *bss = priv; 10380 struct wpa_driver_nl80211_data *drv = bss->drv; 10381 struct nl_msg *msg; 10382 int ret; 10383 10384 msg = nlmsg_alloc(); 10385 if (!msg) 10386 return; 10387 10388 wpa_printf(MSG_DEBUG, "nl80211: Cancel TX frame wait: cookie=0x%llx", 10389 (long long unsigned int) drv->send_action_cookie); 10390 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL); 10391 10392 if (nl80211_set_iface_id(msg, bss) < 0) 10393 goto nla_put_failure; 10394 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie); 10395 10396 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10397 msg = NULL; 10398 if (ret) 10399 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d " 10400 "(%s)", ret, strerror(-ret)); 10401 10402 nla_put_failure: 10403 nlmsg_free(msg); 10404} 10405 10406 10407static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq, 10408 unsigned int duration) 10409{ 10410 struct i802_bss *bss = priv; 10411 struct wpa_driver_nl80211_data *drv = bss->drv; 10412 struct nl_msg *msg; 10413 int ret; 10414 u64 cookie; 10415 10416 msg = nlmsg_alloc(); 10417 if (!msg) 10418 return -1; 10419 10420 nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL); 10421 10422 if (nl80211_set_iface_id(msg, bss) < 0) 10423 goto nla_put_failure; 10424 10425 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 10426 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); 10427 10428 cookie = 0; 10429 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 10430 msg = NULL; 10431 if (ret == 0) { 10432 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie " 10433 "0x%llx for freq=%u MHz duration=%u", 10434 (long long unsigned int) cookie, freq, duration); 10435 drv->remain_on_chan_cookie = cookie; 10436 drv->pending_remain_on_chan = 1; 10437 return 0; 10438 } 10439 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel " 10440 "(freq=%d duration=%u): %d (%s)", 10441 freq, duration, ret, strerror(-ret)); 10442nla_put_failure: 10443 nlmsg_free(msg); 10444 return -1; 10445} 10446 10447 10448static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv) 10449{ 10450 struct i802_bss *bss = priv; 10451 struct wpa_driver_nl80211_data *drv = bss->drv; 10452 struct nl_msg *msg; 10453 int ret; 10454 10455 if (!drv->pending_remain_on_chan) { 10456 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel " 10457 "to cancel"); 10458 return -1; 10459 } 10460 10461 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie " 10462 "0x%llx", 10463 (long long unsigned int) drv->remain_on_chan_cookie); 10464 10465 msg = nlmsg_alloc(); 10466 if (!msg) 10467 return -1; 10468 10469 nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL); 10470 10471 if (nl80211_set_iface_id(msg, bss) < 0) 10472 goto nla_put_failure; 10473 10474 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie); 10475 10476 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10477 msg = NULL; 10478 if (ret == 0) 10479 return 0; 10480 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: " 10481 "%d (%s)", ret, strerror(-ret)); 10482nla_put_failure: 10483 nlmsg_free(msg); 10484 return -1; 10485} 10486 10487 10488static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report) 10489{ 10490 struct wpa_driver_nl80211_data *drv = bss->drv; 10491 10492 if (!report) { 10493 if (bss->nl_preq && drv->device_ap_sme && 10494 is_ap_interface(drv->nlmode)) { 10495 /* 10496 * Do not disable Probe Request reporting that was 10497 * enabled in nl80211_setup_ap(). 10498 */ 10499 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of " 10500 "Probe Request reporting nl_preq=%p while " 10501 "in AP mode", bss->nl_preq); 10502 } else if (bss->nl_preq) { 10503 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request " 10504 "reporting nl_preq=%p", bss->nl_preq); 10505 nl80211_destroy_eloop_handle(&bss->nl_preq); 10506 } 10507 return 0; 10508 } 10509 10510 if (bss->nl_preq) { 10511 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting " 10512 "already on! nl_preq=%p", bss->nl_preq); 10513 return 0; 10514 } 10515 10516 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq"); 10517 if (bss->nl_preq == NULL) 10518 return -1; 10519 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request " 10520 "reporting nl_preq=%p", bss->nl_preq); 10521 10522 if (nl80211_register_frame(bss, bss->nl_preq, 10523 (WLAN_FC_TYPE_MGMT << 2) | 10524 (WLAN_FC_STYPE_PROBE_REQ << 4), 10525 NULL, 0) < 0) 10526 goto out_err; 10527 10528 nl80211_register_eloop_read(&bss->nl_preq, 10529 wpa_driver_nl80211_event_receive, 10530 bss->nl_cb); 10531 10532 return 0; 10533 10534 out_err: 10535 nl_destroy_handles(&bss->nl_preq); 10536 return -1; 10537} 10538 10539 10540static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 10541 int ifindex, int disabled) 10542{ 10543 struct nl_msg *msg; 10544 struct nlattr *bands, *band; 10545 int ret; 10546 10547 msg = nlmsg_alloc(); 10548 if (!msg) 10549 return -1; 10550 10551 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK); 10552 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 10553 10554 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES); 10555 if (!bands) 10556 goto nla_put_failure; 10557 10558 /* 10559 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything 10560 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS 10561 * rates. All 5 GHz rates are left enabled. 10562 */ 10563 band = nla_nest_start(msg, NL80211_BAND_2GHZ); 10564 if (!band) 10565 goto nla_put_failure; 10566 if (disabled) { 10567 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8, 10568 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 10569 } 10570 nla_nest_end(msg, band); 10571 10572 nla_nest_end(msg, bands); 10573 10574 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10575 msg = NULL; 10576 if (ret) { 10577 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d " 10578 "(%s)", ret, strerror(-ret)); 10579 } else 10580 drv->disabled_11b_rates = disabled; 10581 10582 return ret; 10583 10584nla_put_failure: 10585 nlmsg_free(msg); 10586 return -1; 10587} 10588 10589 10590static int wpa_driver_nl80211_deinit_ap(void *priv) 10591{ 10592 struct i802_bss *bss = priv; 10593 struct wpa_driver_nl80211_data *drv = bss->drv; 10594 if (!is_ap_interface(drv->nlmode)) 10595 return -1; 10596 wpa_driver_nl80211_del_beacon(drv); 10597 10598 /* 10599 * If the P2P GO interface was dynamically added, then it is 10600 * possible that the interface change to station is not possible. 10601 */ 10602 if (drv->nlmode == NL80211_IFTYPE_P2P_GO && bss->if_dynamic) 10603 return 0; 10604 10605 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 10606} 10607 10608 10609static int wpa_driver_nl80211_stop_ap(void *priv) 10610{ 10611 struct i802_bss *bss = priv; 10612 struct wpa_driver_nl80211_data *drv = bss->drv; 10613 if (!is_ap_interface(drv->nlmode)) 10614 return -1; 10615 wpa_driver_nl80211_del_beacon(drv); 10616 bss->beacon_set = 0; 10617 return 0; 10618} 10619 10620 10621static int wpa_driver_nl80211_deinit_p2p_cli(void *priv) 10622{ 10623 struct i802_bss *bss = priv; 10624 struct wpa_driver_nl80211_data *drv = bss->drv; 10625 if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT) 10626 return -1; 10627 10628 /* 10629 * If the P2P Client interface was dynamically added, then it is 10630 * possible that the interface change to station is not possible. 10631 */ 10632 if (bss->if_dynamic) 10633 return 0; 10634 10635 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 10636} 10637 10638 10639static void wpa_driver_nl80211_resume(void *priv) 10640{ 10641 struct i802_bss *bss = priv; 10642 10643 if (i802_set_iface_flags(bss, 1)) 10644 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on resume event"); 10645} 10646 10647 10648static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap, 10649 const u8 *ies, size_t ies_len) 10650{ 10651 struct i802_bss *bss = priv; 10652 struct wpa_driver_nl80211_data *drv = bss->drv; 10653 int ret; 10654 u8 *data, *pos; 10655 size_t data_len; 10656 const u8 *own_addr = bss->addr; 10657 10658 if (action != 1) { 10659 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action " 10660 "action %d", action); 10661 return -1; 10662 } 10663 10664 /* 10665 * Action frame payload: 10666 * Category[1] = 6 (Fast BSS Transition) 10667 * Action[1] = 1 (Fast BSS Transition Request) 10668 * STA Address 10669 * Target AP Address 10670 * FT IEs 10671 */ 10672 10673 data_len = 2 + 2 * ETH_ALEN + ies_len; 10674 data = os_malloc(data_len); 10675 if (data == NULL) 10676 return -1; 10677 pos = data; 10678 *pos++ = 0x06; /* FT Action category */ 10679 *pos++ = action; 10680 os_memcpy(pos, own_addr, ETH_ALEN); 10681 pos += ETH_ALEN; 10682 os_memcpy(pos, target_ap, ETH_ALEN); 10683 pos += ETH_ALEN; 10684 os_memcpy(pos, ies, ies_len); 10685 10686 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0, 10687 drv->bssid, own_addr, drv->bssid, 10688 data, data_len, 0); 10689 os_free(data); 10690 10691 return ret; 10692} 10693 10694 10695static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis) 10696{ 10697 struct i802_bss *bss = priv; 10698 struct wpa_driver_nl80211_data *drv = bss->drv; 10699 struct nl_msg *msg; 10700 struct nlattr *cqm; 10701 int ret = -1; 10702 10703 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d " 10704 "hysteresis=%d", threshold, hysteresis); 10705 10706 msg = nlmsg_alloc(); 10707 if (!msg) 10708 return -1; 10709 10710 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM); 10711 10712 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10713 10714 cqm = nla_nest_start(msg, NL80211_ATTR_CQM); 10715 if (cqm == NULL) 10716 goto nla_put_failure; 10717 10718 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THOLD, threshold); 10719 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_HYST, hysteresis); 10720 nla_nest_end(msg, cqm); 10721 10722 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10723 msg = NULL; 10724 10725nla_put_failure: 10726 nlmsg_free(msg); 10727 return ret; 10728} 10729 10730 10731static int get_channel_width(struct nl_msg *msg, void *arg) 10732{ 10733 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 10734 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 10735 struct wpa_signal_info *sig_change = arg; 10736 10737 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 10738 genlmsg_attrlen(gnlh, 0), NULL); 10739 10740 sig_change->center_frq1 = -1; 10741 sig_change->center_frq2 = -1; 10742 sig_change->chanwidth = CHAN_WIDTH_UNKNOWN; 10743 10744 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) { 10745 sig_change->chanwidth = convert2width( 10746 nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH])); 10747 if (tb[NL80211_ATTR_CENTER_FREQ1]) 10748 sig_change->center_frq1 = 10749 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); 10750 if (tb[NL80211_ATTR_CENTER_FREQ2]) 10751 sig_change->center_frq2 = 10752 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); 10753 } 10754 10755 return NL_SKIP; 10756} 10757 10758 10759static int nl80211_get_channel_width(struct wpa_driver_nl80211_data *drv, 10760 struct wpa_signal_info *sig) 10761{ 10762 struct nl_msg *msg; 10763 10764 msg = nlmsg_alloc(); 10765 if (!msg) 10766 return -ENOMEM; 10767 10768 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_INTERFACE); 10769 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10770 10771 return send_and_recv_msgs(drv, msg, get_channel_width, sig); 10772 10773nla_put_failure: 10774 nlmsg_free(msg); 10775 return -ENOBUFS; 10776} 10777 10778 10779static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si) 10780{ 10781 struct i802_bss *bss = priv; 10782 struct wpa_driver_nl80211_data *drv = bss->drv; 10783 int res; 10784 10785 os_memset(si, 0, sizeof(*si)); 10786 res = nl80211_get_link_signal(drv, si); 10787 if (res != 0) 10788 return res; 10789 10790 res = nl80211_get_channel_width(drv, si); 10791 if (res != 0) 10792 return res; 10793 10794 return nl80211_get_link_noise(drv, si); 10795} 10796 10797 10798static int wpa_driver_nl80211_shared_freq(void *priv) 10799{ 10800 struct i802_bss *bss = priv; 10801 struct wpa_driver_nl80211_data *drv = bss->drv; 10802 struct wpa_driver_nl80211_data *driver; 10803 int freq = 0; 10804 10805 /* 10806 * If the same PHY is in connected state with some other interface, 10807 * then retrieve the assoc freq. 10808 */ 10809 wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s", 10810 drv->phyname); 10811 10812 dl_list_for_each(driver, &drv->global->interfaces, 10813 struct wpa_driver_nl80211_data, list) { 10814 if (drv == driver || 10815 os_strcmp(drv->phyname, driver->phyname) != 0 || 10816 !driver->associated) 10817 continue; 10818 10819 wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s " 10820 MACSTR, 10821 driver->phyname, driver->first_bss->ifname, 10822 MAC2STR(driver->first_bss->addr)); 10823 if (is_ap_interface(driver->nlmode)) 10824 freq = driver->first_bss->freq; 10825 else 10826 freq = nl80211_get_assoc_freq(driver); 10827 wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d", 10828 drv->phyname, freq); 10829 } 10830 10831 if (!freq) 10832 wpa_printf(MSG_DEBUG, "nl80211: No shared interface for " 10833 "PHY (%s) in associated state", drv->phyname); 10834 10835 return freq; 10836} 10837 10838 10839static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len, 10840 int encrypt) 10841{ 10842 struct i802_bss *bss = priv; 10843 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0, 10844 0, 0, 0, 0); 10845} 10846 10847 10848static int nl80211_set_param(void *priv, const char *param) 10849{ 10850 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param); 10851 if (param == NULL) 10852 return 0; 10853 10854#ifdef CONFIG_P2P 10855 if (os_strstr(param, "use_p2p_group_interface=1")) { 10856 struct i802_bss *bss = priv; 10857 struct wpa_driver_nl80211_data *drv = bss->drv; 10858 10859 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 10860 "interface"); 10861 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 10862 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 10863 } 10864 10865 if (os_strstr(param, "p2p_device=1")) { 10866 struct i802_bss *bss = priv; 10867 struct wpa_driver_nl80211_data *drv = bss->drv; 10868 drv->allow_p2p_device = 1; 10869 } 10870#endif /* CONFIG_P2P */ 10871 10872 if (os_strstr(param, "use_monitor=1")) { 10873 struct i802_bss *bss = priv; 10874 struct wpa_driver_nl80211_data *drv = bss->drv; 10875 drv->use_monitor = 1; 10876 } 10877 10878 if (os_strstr(param, "force_connect_cmd=1")) { 10879 struct i802_bss *bss = priv; 10880 struct wpa_driver_nl80211_data *drv = bss->drv; 10881 drv->capa.flags &= ~WPA_DRIVER_FLAGS_SME; 10882 } 10883 10884 if (os_strstr(param, "no_offchannel_tx=1")) { 10885 struct i802_bss *bss = priv; 10886 struct wpa_driver_nl80211_data *drv = bss->drv; 10887 drv->capa.flags &= ~WPA_DRIVER_FLAGS_OFFCHANNEL_TX; 10888 drv->test_use_roc_tx = 1; 10889 } 10890 10891 return 0; 10892} 10893 10894 10895static void * nl80211_global_init(void) 10896{ 10897 struct nl80211_global *global; 10898 struct netlink_config *cfg; 10899 10900 global = os_zalloc(sizeof(*global)); 10901 if (global == NULL) 10902 return NULL; 10903 global->ioctl_sock = -1; 10904 dl_list_init(&global->interfaces); 10905 global->if_add_ifindex = -1; 10906 10907 cfg = os_zalloc(sizeof(*cfg)); 10908 if (cfg == NULL) 10909 goto err; 10910 10911 cfg->ctx = global; 10912 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink; 10913 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink; 10914 global->netlink = netlink_init(cfg); 10915 if (global->netlink == NULL) { 10916 os_free(cfg); 10917 goto err; 10918 } 10919 10920 if (wpa_driver_nl80211_init_nl_global(global) < 0) 10921 goto err; 10922 10923 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0); 10924 if (global->ioctl_sock < 0) { 10925 wpa_printf(MSG_ERROR, "nl80211: socket(PF_INET,SOCK_DGRAM) failed: %s", 10926 strerror(errno)); 10927 goto err; 10928 } 10929 10930 return global; 10931 10932err: 10933 nl80211_global_deinit(global); 10934 return NULL; 10935} 10936 10937 10938static void nl80211_global_deinit(void *priv) 10939{ 10940 struct nl80211_global *global = priv; 10941 if (global == NULL) 10942 return; 10943 if (!dl_list_empty(&global->interfaces)) { 10944 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at " 10945 "nl80211_global_deinit", 10946 dl_list_len(&global->interfaces)); 10947 } 10948 10949 if (global->netlink) 10950 netlink_deinit(global->netlink); 10951 10952 nl_destroy_handles(&global->nl); 10953 10954 if (global->nl_event) 10955 nl80211_destroy_eloop_handle(&global->nl_event); 10956 10957 nl_cb_put(global->nl_cb); 10958 10959 if (global->ioctl_sock >= 0) 10960 close(global->ioctl_sock); 10961 10962 os_free(global); 10963} 10964 10965 10966static const char * nl80211_get_radio_name(void *priv) 10967{ 10968 struct i802_bss *bss = priv; 10969 struct wpa_driver_nl80211_data *drv = bss->drv; 10970 return drv->phyname; 10971} 10972 10973 10974static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid, 10975 const u8 *pmkid) 10976{ 10977 struct nl_msg *msg; 10978 10979 msg = nlmsg_alloc(); 10980 if (!msg) 10981 return -ENOMEM; 10982 10983 nl80211_cmd(bss->drv, msg, 0, cmd); 10984 10985 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 10986 if (pmkid) 10987 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid); 10988 if (bssid) 10989 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); 10990 10991 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 10992 nla_put_failure: 10993 nlmsg_free(msg); 10994 return -ENOBUFS; 10995} 10996 10997 10998static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 10999{ 11000 struct i802_bss *bss = priv; 11001 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid)); 11002 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid); 11003} 11004 11005 11006static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 11007{ 11008 struct i802_bss *bss = priv; 11009 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR, 11010 MAC2STR(bssid)); 11011 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid); 11012} 11013 11014 11015static int nl80211_flush_pmkid(void *priv) 11016{ 11017 struct i802_bss *bss = priv; 11018 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs"); 11019 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL); 11020} 11021 11022 11023static void clean_survey_results(struct survey_results *survey_results) 11024{ 11025 struct freq_survey *survey, *tmp; 11026 11027 if (dl_list_empty(&survey_results->survey_list)) 11028 return; 11029 11030 dl_list_for_each_safe(survey, tmp, &survey_results->survey_list, 11031 struct freq_survey, list) { 11032 dl_list_del(&survey->list); 11033 os_free(survey); 11034 } 11035} 11036 11037 11038static void add_survey(struct nlattr **sinfo, u32 ifidx, 11039 struct dl_list *survey_list) 11040{ 11041 struct freq_survey *survey; 11042 11043 survey = os_zalloc(sizeof(struct freq_survey)); 11044 if (!survey) 11045 return; 11046 11047 survey->ifidx = ifidx; 11048 survey->freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); 11049 survey->filled = 0; 11050 11051 if (sinfo[NL80211_SURVEY_INFO_NOISE]) { 11052 survey->nf = (int8_t) 11053 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 11054 survey->filled |= SURVEY_HAS_NF; 11055 } 11056 11057 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]) { 11058 survey->channel_time = 11059 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]); 11060 survey->filled |= SURVEY_HAS_CHAN_TIME; 11061 } 11062 11063 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]) { 11064 survey->channel_time_busy = 11065 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]); 11066 survey->filled |= SURVEY_HAS_CHAN_TIME_BUSY; 11067 } 11068 11069 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]) { 11070 survey->channel_time_rx = 11071 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]); 11072 survey->filled |= SURVEY_HAS_CHAN_TIME_RX; 11073 } 11074 11075 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]) { 11076 survey->channel_time_tx = 11077 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]); 11078 survey->filled |= SURVEY_HAS_CHAN_TIME_TX; 11079 } 11080 11081 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)", 11082 survey->freq, 11083 survey->nf, 11084 (unsigned long int) survey->channel_time, 11085 (unsigned long int) survey->channel_time_busy, 11086 (unsigned long int) survey->channel_time_tx, 11087 (unsigned long int) survey->channel_time_rx, 11088 survey->filled); 11089 11090 dl_list_add_tail(survey_list, &survey->list); 11091} 11092 11093 11094static int check_survey_ok(struct nlattr **sinfo, u32 surveyed_freq, 11095 unsigned int freq_filter) 11096{ 11097 if (!freq_filter) 11098 return 1; 11099 11100 return freq_filter == surveyed_freq; 11101} 11102 11103 11104static int survey_handler(struct nl_msg *msg, void *arg) 11105{ 11106 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 11107 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 11108 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 11109 struct survey_results *survey_results; 11110 u32 surveyed_freq = 0; 11111 u32 ifidx; 11112 11113 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 11114 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 11115 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 11116 }; 11117 11118 survey_results = (struct survey_results *) arg; 11119 11120 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 11121 genlmsg_attrlen(gnlh, 0), NULL); 11122 11123 if (!tb[NL80211_ATTR_IFINDEX]) 11124 return NL_SKIP; 11125 11126 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 11127 11128 if (!tb[NL80211_ATTR_SURVEY_INFO]) 11129 return NL_SKIP; 11130 11131 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 11132 tb[NL80211_ATTR_SURVEY_INFO], 11133 survey_policy)) 11134 return NL_SKIP; 11135 11136 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) { 11137 wpa_printf(MSG_ERROR, "nl80211: Invalid survey data"); 11138 return NL_SKIP; 11139 } 11140 11141 surveyed_freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); 11142 11143 if (!check_survey_ok(sinfo, surveyed_freq, 11144 survey_results->freq_filter)) 11145 return NL_SKIP; 11146 11147 if (survey_results->freq_filter && 11148 survey_results->freq_filter != surveyed_freq) { 11149 wpa_printf(MSG_EXCESSIVE, "nl80211: Ignoring survey data for freq %d MHz", 11150 surveyed_freq); 11151 return NL_SKIP; 11152 } 11153 11154 add_survey(sinfo, ifidx, &survey_results->survey_list); 11155 11156 return NL_SKIP; 11157} 11158 11159 11160static int wpa_driver_nl80211_get_survey(void *priv, unsigned int freq) 11161{ 11162 struct i802_bss *bss = priv; 11163 struct wpa_driver_nl80211_data *drv = bss->drv; 11164 struct nl_msg *msg; 11165 int err = -ENOBUFS; 11166 union wpa_event_data data; 11167 struct survey_results *survey_results; 11168 11169 os_memset(&data, 0, sizeof(data)); 11170 survey_results = &data.survey_results; 11171 11172 dl_list_init(&survey_results->survey_list); 11173 11174 msg = nlmsg_alloc(); 11175 if (!msg) 11176 goto nla_put_failure; 11177 11178 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 11179 11180 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11181 11182 if (freq) 11183 data.survey_results.freq_filter = freq; 11184 11185 do { 11186 wpa_printf(MSG_DEBUG, "nl80211: Fetch survey data"); 11187 err = send_and_recv_msgs(drv, msg, survey_handler, 11188 survey_results); 11189 } while (err > 0); 11190 11191 if (err) { 11192 wpa_printf(MSG_ERROR, "nl80211: Failed to process survey data"); 11193 goto out_clean; 11194 } 11195 11196 wpa_supplicant_event(drv->ctx, EVENT_SURVEY, &data); 11197 11198out_clean: 11199 clean_survey_results(survey_results); 11200nla_put_failure: 11201 return err; 11202} 11203 11204 11205static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck, 11206 const u8 *replay_ctr) 11207{ 11208 struct i802_bss *bss = priv; 11209 struct wpa_driver_nl80211_data *drv = bss->drv; 11210 struct nlattr *replay_nested; 11211 struct nl_msg *msg; 11212 11213 msg = nlmsg_alloc(); 11214 if (!msg) 11215 return; 11216 11217 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD); 11218 11219 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 11220 11221 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); 11222 if (!replay_nested) 11223 goto nla_put_failure; 11224 11225 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek); 11226 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck); 11227 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN, 11228 replay_ctr); 11229 11230 nla_nest_end(msg, replay_nested); 11231 11232 send_and_recv_msgs(drv, msg, NULL, NULL); 11233 return; 11234 nla_put_failure: 11235 nlmsg_free(msg); 11236} 11237 11238 11239static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr, 11240 const u8 *addr, int qos) 11241{ 11242 /* send data frame to poll STA and check whether 11243 * this frame is ACKed */ 11244 struct { 11245 struct ieee80211_hdr hdr; 11246 u16 qos_ctl; 11247 } STRUCT_PACKED nulldata; 11248 size_t size; 11249 11250 /* Send data frame to poll STA and check whether this frame is ACKed */ 11251 11252 os_memset(&nulldata, 0, sizeof(nulldata)); 11253 11254 if (qos) { 11255 nulldata.hdr.frame_control = 11256 IEEE80211_FC(WLAN_FC_TYPE_DATA, 11257 WLAN_FC_STYPE_QOS_NULL); 11258 size = sizeof(nulldata); 11259 } else { 11260 nulldata.hdr.frame_control = 11261 IEEE80211_FC(WLAN_FC_TYPE_DATA, 11262 WLAN_FC_STYPE_NULLFUNC); 11263 size = sizeof(struct ieee80211_hdr); 11264 } 11265 11266 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS); 11267 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN); 11268 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 11269 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 11270 11271 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0, 0, 0, 11272 0, 0) < 0) 11273 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to " 11274 "send poll frame"); 11275} 11276 11277static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr, 11278 int qos) 11279{ 11280 struct i802_bss *bss = priv; 11281 struct wpa_driver_nl80211_data *drv = bss->drv; 11282 struct nl_msg *msg; 11283 11284 if (!drv->poll_command_supported) { 11285 nl80211_send_null_frame(bss, own_addr, addr, qos); 11286 return; 11287 } 11288 11289 msg = nlmsg_alloc(); 11290 if (!msg) 11291 return; 11292 11293 nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT); 11294 11295 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 11296 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 11297 11298 send_and_recv_msgs(drv, msg, NULL, NULL); 11299 return; 11300 nla_put_failure: 11301 nlmsg_free(msg); 11302} 11303 11304 11305static int nl80211_set_power_save(struct i802_bss *bss, int enabled) 11306{ 11307 struct nl_msg *msg; 11308 11309 msg = nlmsg_alloc(); 11310 if (!msg) 11311 return -ENOMEM; 11312 11313 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE); 11314 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 11315 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, 11316 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED); 11317 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 11318nla_put_failure: 11319 nlmsg_free(msg); 11320 return -ENOBUFS; 11321} 11322 11323 11324static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps, 11325 int ctwindow) 11326{ 11327 struct i802_bss *bss = priv; 11328 11329 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d " 11330 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow); 11331 11332 if (opp_ps != -1 || ctwindow != -1) { 11333#ifdef ANDROID_P2P 11334 wpa_driver_set_p2p_ps(priv, legacy_ps, opp_ps, ctwindow); 11335#else /* ANDROID_P2P */ 11336 return -1; /* Not yet supported */ 11337#endif /* ANDROID_P2P */ 11338 } 11339 11340 if (legacy_ps == -1) 11341 return 0; 11342 if (legacy_ps != 0 && legacy_ps != 1) 11343 return -1; /* Not yet supported */ 11344 11345 return nl80211_set_power_save(bss, legacy_ps); 11346} 11347 11348 11349static int nl80211_start_radar_detection(void *priv, 11350 struct hostapd_freq_params *freq) 11351{ 11352 struct i802_bss *bss = priv; 11353 struct wpa_driver_nl80211_data *drv = bss->drv; 11354 struct nl_msg *msg; 11355 int ret; 11356 11357 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)", 11358 freq->freq, freq->ht_enabled, freq->vht_enabled, 11359 freq->bandwidth, freq->center_freq1, freq->center_freq2); 11360 11361 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_RADAR)) { 11362 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support radar " 11363 "detection"); 11364 return -1; 11365 } 11366 11367 msg = nlmsg_alloc(); 11368 if (!msg) 11369 return -1; 11370 11371 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_RADAR_DETECT); 11372 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11373 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); 11374 11375 if (freq->vht_enabled) { 11376 switch (freq->bandwidth) { 11377 case 20: 11378 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 11379 NL80211_CHAN_WIDTH_20); 11380 break; 11381 case 40: 11382 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 11383 NL80211_CHAN_WIDTH_40); 11384 break; 11385 case 80: 11386 if (freq->center_freq2) 11387 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 11388 NL80211_CHAN_WIDTH_80P80); 11389 else 11390 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 11391 NL80211_CHAN_WIDTH_80); 11392 break; 11393 case 160: 11394 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 11395 NL80211_CHAN_WIDTH_160); 11396 break; 11397 default: 11398 return -1; 11399 } 11400 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); 11401 if (freq->center_freq2) 11402 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, 11403 freq->center_freq2); 11404 } else if (freq->ht_enabled) { 11405 switch (freq->sec_channel_offset) { 11406 case -1: 11407 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 11408 NL80211_CHAN_HT40MINUS); 11409 break; 11410 case 1: 11411 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 11412 NL80211_CHAN_HT40PLUS); 11413 break; 11414 default: 11415 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 11416 NL80211_CHAN_HT20); 11417 break; 11418 } 11419 } 11420 11421 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 11422 if (ret == 0) 11423 return 0; 11424 wpa_printf(MSG_DEBUG, "nl80211: Failed to start radar detection: " 11425 "%d (%s)", ret, strerror(-ret)); 11426nla_put_failure: 11427 return -1; 11428} 11429 11430#ifdef CONFIG_TDLS 11431 11432static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code, 11433 u8 dialog_token, u16 status_code, 11434 u32 peer_capab, const u8 *buf, size_t len) 11435{ 11436 struct i802_bss *bss = priv; 11437 struct wpa_driver_nl80211_data *drv = bss->drv; 11438 struct nl_msg *msg; 11439 11440 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 11441 return -EOPNOTSUPP; 11442 11443 if (!dst) 11444 return -EINVAL; 11445 11446 msg = nlmsg_alloc(); 11447 if (!msg) 11448 return -ENOMEM; 11449 11450 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT); 11451 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11452 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); 11453 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code); 11454 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token); 11455 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code); 11456 if (peer_capab) { 11457 /* 11458 * The internal enum tdls_peer_capability definition is 11459 * currently identical with the nl80211 enum 11460 * nl80211_tdls_peer_capability, so no conversion is needed 11461 * here. 11462 */ 11463 NLA_PUT_U32(msg, NL80211_ATTR_TDLS_PEER_CAPABILITY, peer_capab); 11464 } 11465 NLA_PUT(msg, NL80211_ATTR_IE, len, buf); 11466 11467 return send_and_recv_msgs(drv, msg, NULL, NULL); 11468 11469nla_put_failure: 11470 nlmsg_free(msg); 11471 return -ENOBUFS; 11472} 11473 11474 11475static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer) 11476{ 11477 struct i802_bss *bss = priv; 11478 struct wpa_driver_nl80211_data *drv = bss->drv; 11479 struct nl_msg *msg; 11480 enum nl80211_tdls_operation nl80211_oper; 11481 11482 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 11483 return -EOPNOTSUPP; 11484 11485 switch (oper) { 11486 case TDLS_DISCOVERY_REQ: 11487 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ; 11488 break; 11489 case TDLS_SETUP: 11490 nl80211_oper = NL80211_TDLS_SETUP; 11491 break; 11492 case TDLS_TEARDOWN: 11493 nl80211_oper = NL80211_TDLS_TEARDOWN; 11494 break; 11495 case TDLS_ENABLE_LINK: 11496 nl80211_oper = NL80211_TDLS_ENABLE_LINK; 11497 break; 11498 case TDLS_DISABLE_LINK: 11499 nl80211_oper = NL80211_TDLS_DISABLE_LINK; 11500 break; 11501 case TDLS_ENABLE: 11502 return 0; 11503 case TDLS_DISABLE: 11504 return 0; 11505 default: 11506 return -EINVAL; 11507 } 11508 11509 msg = nlmsg_alloc(); 11510 if (!msg) 11511 return -ENOMEM; 11512 11513 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER); 11514 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper); 11515 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11516 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer); 11517 11518 return send_and_recv_msgs(drv, msg, NULL, NULL); 11519 11520nla_put_failure: 11521 nlmsg_free(msg); 11522 return -ENOBUFS; 11523} 11524 11525#endif /* CONFIG TDLS */ 11526 11527 11528#ifdef ANDROID 11529 11530typedef struct android_wifi_priv_cmd { 11531 char *buf; 11532 int used_len; 11533 int total_len; 11534} android_wifi_priv_cmd; 11535 11536static int drv_errors = 0; 11537 11538static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv) 11539{ 11540 drv_errors++; 11541 if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) { 11542 drv_errors = 0; 11543 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED"); 11544 } 11545} 11546 11547 11548static int android_priv_cmd(struct i802_bss *bss, const char *cmd) 11549{ 11550 struct wpa_driver_nl80211_data *drv = bss->drv; 11551 struct ifreq ifr; 11552 android_wifi_priv_cmd priv_cmd; 11553 char buf[MAX_DRV_CMD_SIZE]; 11554 int ret; 11555 11556 os_memset(&ifr, 0, sizeof(ifr)); 11557 os_memset(&priv_cmd, 0, sizeof(priv_cmd)); 11558 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 11559 11560 os_memset(buf, 0, sizeof(buf)); 11561 os_strlcpy(buf, cmd, sizeof(buf)); 11562 11563 priv_cmd.buf = buf; 11564 priv_cmd.used_len = sizeof(buf); 11565 priv_cmd.total_len = sizeof(buf); 11566 ifr.ifr_data = &priv_cmd; 11567 11568 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 11569 if (ret < 0) { 11570 wpa_printf(MSG_ERROR, "%s: failed to issue private commands", 11571 __func__); 11572 wpa_driver_send_hang_msg(drv); 11573 return ret; 11574 } 11575 11576 drv_errors = 0; 11577 return 0; 11578} 11579 11580 11581static int android_pno_start(struct i802_bss *bss, 11582 struct wpa_driver_scan_params *params) 11583{ 11584 struct wpa_driver_nl80211_data *drv = bss->drv; 11585 struct ifreq ifr; 11586 android_wifi_priv_cmd priv_cmd; 11587 int ret = 0, i = 0, bp; 11588 char buf[WEXT_PNO_MAX_COMMAND_SIZE]; 11589 11590 bp = WEXT_PNOSETUP_HEADER_SIZE; 11591 os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp); 11592 buf[bp++] = WEXT_PNO_TLV_PREFIX; 11593 buf[bp++] = WEXT_PNO_TLV_VERSION; 11594 buf[bp++] = WEXT_PNO_TLV_SUBVERSION; 11595 buf[bp++] = WEXT_PNO_TLV_RESERVED; 11596 11597 while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) { 11598 /* Check that there is enough space needed for 1 more SSID, the 11599 * other sections and null termination */ 11600 if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN + 11601 WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf)) 11602 break; 11603 wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan", 11604 params->ssids[i].ssid, 11605 params->ssids[i].ssid_len); 11606 buf[bp++] = WEXT_PNO_SSID_SECTION; 11607 buf[bp++] = params->ssids[i].ssid_len; 11608 os_memcpy(&buf[bp], params->ssids[i].ssid, 11609 params->ssids[i].ssid_len); 11610 bp += params->ssids[i].ssid_len; 11611 i++; 11612 } 11613 11614 buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION; 11615 os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x", 11616 WEXT_PNO_SCAN_INTERVAL); 11617 bp += WEXT_PNO_SCAN_INTERVAL_LENGTH; 11618 11619 buf[bp++] = WEXT_PNO_REPEAT_SECTION; 11620 os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x", 11621 WEXT_PNO_REPEAT); 11622 bp += WEXT_PNO_REPEAT_LENGTH; 11623 11624 buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION; 11625 os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x", 11626 WEXT_PNO_MAX_REPEAT); 11627 bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1; 11628 11629 memset(&ifr, 0, sizeof(ifr)); 11630 memset(&priv_cmd, 0, sizeof(priv_cmd)); 11631 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 11632 11633 priv_cmd.buf = buf; 11634 priv_cmd.used_len = bp; 11635 priv_cmd.total_len = bp; 11636 ifr.ifr_data = &priv_cmd; 11637 11638 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 11639 11640 if (ret < 0) { 11641 wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d", 11642 ret); 11643 wpa_driver_send_hang_msg(drv); 11644 return ret; 11645 } 11646 11647 drv_errors = 0; 11648 11649 return android_priv_cmd(bss, "PNOFORCE 1"); 11650} 11651 11652 11653static int android_pno_stop(struct i802_bss *bss) 11654{ 11655 return android_priv_cmd(bss, "PNOFORCE 0"); 11656} 11657 11658#endif /* ANDROID */ 11659 11660 11661static int driver_nl80211_set_key(const char *ifname, void *priv, 11662 enum wpa_alg alg, const u8 *addr, 11663 int key_idx, int set_tx, 11664 const u8 *seq, size_t seq_len, 11665 const u8 *key, size_t key_len) 11666{ 11667 struct i802_bss *bss = priv; 11668 return wpa_driver_nl80211_set_key(ifname, bss, alg, addr, key_idx, 11669 set_tx, seq, seq_len, key, key_len); 11670} 11671 11672 11673static int driver_nl80211_scan2(void *priv, 11674 struct wpa_driver_scan_params *params) 11675{ 11676 struct i802_bss *bss = priv; 11677 return wpa_driver_nl80211_scan(bss, params); 11678} 11679 11680 11681static int driver_nl80211_deauthenticate(void *priv, const u8 *addr, 11682 int reason_code) 11683{ 11684 struct i802_bss *bss = priv; 11685 return wpa_driver_nl80211_deauthenticate(bss, addr, reason_code); 11686} 11687 11688 11689static int driver_nl80211_authenticate(void *priv, 11690 struct wpa_driver_auth_params *params) 11691{ 11692 struct i802_bss *bss = priv; 11693 return wpa_driver_nl80211_authenticate(bss, params); 11694} 11695 11696 11697static void driver_nl80211_deinit(void *priv) 11698{ 11699 struct i802_bss *bss = priv; 11700 wpa_driver_nl80211_deinit(bss); 11701} 11702 11703 11704static int driver_nl80211_if_remove(void *priv, enum wpa_driver_if_type type, 11705 const char *ifname) 11706{ 11707 struct i802_bss *bss = priv; 11708 return wpa_driver_nl80211_if_remove(bss, type, ifname); 11709} 11710 11711 11712static int driver_nl80211_send_mlme(void *priv, const u8 *data, 11713 size_t data_len, int noack) 11714{ 11715 struct i802_bss *bss = priv; 11716 return wpa_driver_nl80211_send_mlme(bss, data, data_len, noack, 11717 0, 0, 0, 0); 11718} 11719 11720 11721static int driver_nl80211_sta_remove(void *priv, const u8 *addr) 11722{ 11723 struct i802_bss *bss = priv; 11724 return wpa_driver_nl80211_sta_remove(bss, addr); 11725} 11726 11727 11728static int driver_nl80211_set_sta_vlan(void *priv, const u8 *addr, 11729 const char *ifname, int vlan_id) 11730{ 11731 struct i802_bss *bss = priv; 11732 return i802_set_sta_vlan(bss, addr, ifname, vlan_id); 11733} 11734 11735 11736static int driver_nl80211_read_sta_data(void *priv, 11737 struct hostap_sta_driver_data *data, 11738 const u8 *addr) 11739{ 11740 struct i802_bss *bss = priv; 11741 return i802_read_sta_data(bss, data, addr); 11742} 11743 11744 11745static int driver_nl80211_send_action(void *priv, unsigned int freq, 11746 unsigned int wait_time, 11747 const u8 *dst, const u8 *src, 11748 const u8 *bssid, 11749 const u8 *data, size_t data_len, 11750 int no_cck) 11751{ 11752 struct i802_bss *bss = priv; 11753 return wpa_driver_nl80211_send_action(bss, freq, wait_time, dst, src, 11754 bssid, data, data_len, no_cck); 11755} 11756 11757 11758static int driver_nl80211_probe_req_report(void *priv, int report) 11759{ 11760 struct i802_bss *bss = priv; 11761 return wpa_driver_nl80211_probe_req_report(bss, report); 11762} 11763 11764 11765static int wpa_driver_nl80211_update_ft_ies(void *priv, const u8 *md, 11766 const u8 *ies, size_t ies_len) 11767{ 11768 int ret; 11769 struct nl_msg *msg; 11770 struct i802_bss *bss = priv; 11771 struct wpa_driver_nl80211_data *drv = bss->drv; 11772 u16 mdid = WPA_GET_LE16(md); 11773 11774 msg = nlmsg_alloc(); 11775 if (!msg) 11776 return -ENOMEM; 11777 11778 wpa_printf(MSG_DEBUG, "nl80211: Updating FT IEs"); 11779 nl80211_cmd(drv, msg, 0, NL80211_CMD_UPDATE_FT_IES); 11780 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11781 NLA_PUT(msg, NL80211_ATTR_IE, ies_len, ies); 11782 NLA_PUT_U16(msg, NL80211_ATTR_MDID, mdid); 11783 11784 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 11785 if (ret) { 11786 wpa_printf(MSG_DEBUG, "nl80211: update_ft_ies failed " 11787 "err=%d (%s)", ret, strerror(-ret)); 11788 } 11789 11790 return ret; 11791 11792nla_put_failure: 11793 nlmsg_free(msg); 11794 return -ENOBUFS; 11795} 11796 11797 11798const u8 * wpa_driver_nl80211_get_macaddr(void *priv) 11799{ 11800 struct i802_bss *bss = priv; 11801 struct wpa_driver_nl80211_data *drv = bss->drv; 11802 11803 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) 11804 return NULL; 11805 11806 return bss->addr; 11807} 11808 11809 11810static const char * scan_state_str(enum scan_states scan_state) 11811{ 11812 switch (scan_state) { 11813 case NO_SCAN: 11814 return "NO_SCAN"; 11815 case SCAN_REQUESTED: 11816 return "SCAN_REQUESTED"; 11817 case SCAN_STARTED: 11818 return "SCAN_STARTED"; 11819 case SCAN_COMPLETED: 11820 return "SCAN_COMPLETED"; 11821 case SCAN_ABORTED: 11822 return "SCAN_ABORTED"; 11823 case SCHED_SCAN_STARTED: 11824 return "SCHED_SCAN_STARTED"; 11825 case SCHED_SCAN_STOPPED: 11826 return "SCHED_SCAN_STOPPED"; 11827 case SCHED_SCAN_RESULTS: 11828 return "SCHED_SCAN_RESULTS"; 11829 } 11830 11831 return "??"; 11832} 11833 11834 11835static int wpa_driver_nl80211_status(void *priv, char *buf, size_t buflen) 11836{ 11837 struct i802_bss *bss = priv; 11838 struct wpa_driver_nl80211_data *drv = bss->drv; 11839 int res; 11840 char *pos, *end; 11841 11842 pos = buf; 11843 end = buf + buflen; 11844 11845 res = os_snprintf(pos, end - pos, 11846 "ifindex=%d\n" 11847 "ifname=%s\n" 11848 "brname=%s\n" 11849 "addr=" MACSTR "\n" 11850 "freq=%d\n" 11851 "%s%s%s%s%s", 11852 bss->ifindex, 11853 bss->ifname, 11854 bss->brname, 11855 MAC2STR(bss->addr), 11856 bss->freq, 11857 bss->beacon_set ? "beacon_set=1\n" : "", 11858 bss->added_if_into_bridge ? 11859 "added_if_into_bridge=1\n" : "", 11860 bss->added_bridge ? "added_bridge=1\n" : "", 11861 bss->in_deinit ? "in_deinit=1\n" : "", 11862 bss->if_dynamic ? "if_dynamic=1\n" : ""); 11863 if (res < 0 || res >= end - pos) 11864 return pos - buf; 11865 pos += res; 11866 11867 if (bss->wdev_id_set) { 11868 res = os_snprintf(pos, end - pos, "wdev_id=%llu\n", 11869 (unsigned long long) bss->wdev_id); 11870 if (res < 0 || res >= end - pos) 11871 return pos - buf; 11872 pos += res; 11873 } 11874 11875 res = os_snprintf(pos, end - pos, 11876 "phyname=%s\n" 11877 "drv_ifindex=%d\n" 11878 "operstate=%d\n" 11879 "scan_state=%s\n" 11880 "auth_bssid=" MACSTR "\n" 11881 "auth_attempt_bssid=" MACSTR "\n" 11882 "bssid=" MACSTR "\n" 11883 "prev_bssid=" MACSTR "\n" 11884 "associated=%d\n" 11885 "assoc_freq=%u\n" 11886 "monitor_sock=%d\n" 11887 "monitor_ifidx=%d\n" 11888 "monitor_refcount=%d\n" 11889 "last_mgmt_freq=%u\n" 11890 "eapol_tx_sock=%d\n" 11891 "%s%s%s%s%s%s%s%s%s%s%s%s%s%s", 11892 drv->phyname, 11893 drv->ifindex, 11894 drv->operstate, 11895 scan_state_str(drv->scan_state), 11896 MAC2STR(drv->auth_bssid), 11897 MAC2STR(drv->auth_attempt_bssid), 11898 MAC2STR(drv->bssid), 11899 MAC2STR(drv->prev_bssid), 11900 drv->associated, 11901 drv->assoc_freq, 11902 drv->monitor_sock, 11903 drv->monitor_ifidx, 11904 drv->monitor_refcount, 11905 drv->last_mgmt_freq, 11906 drv->eapol_tx_sock, 11907 drv->ignore_if_down_event ? 11908 "ignore_if_down_event=1\n" : "", 11909 drv->scan_complete_events ? 11910 "scan_complete_events=1\n" : "", 11911 drv->disabled_11b_rates ? 11912 "disabled_11b_rates=1\n" : "", 11913 drv->pending_remain_on_chan ? 11914 "pending_remain_on_chan=1\n" : "", 11915 drv->in_interface_list ? "in_interface_list=1\n" : "", 11916 drv->device_ap_sme ? "device_ap_sme=1\n" : "", 11917 drv->poll_command_supported ? 11918 "poll_command_supported=1\n" : "", 11919 drv->data_tx_status ? "data_tx_status=1\n" : "", 11920 drv->scan_for_auth ? "scan_for_auth=1\n" : "", 11921 drv->retry_auth ? "retry_auth=1\n" : "", 11922 drv->use_monitor ? "use_monitor=1\n" : "", 11923 drv->ignore_next_local_disconnect ? 11924 "ignore_next_local_disconnect=1\n" : "", 11925 drv->ignore_next_local_deauth ? 11926 "ignore_next_local_deauth=1\n" : "", 11927 drv->allow_p2p_device ? "allow_p2p_device=1\n" : ""); 11928 if (res < 0 || res >= end - pos) 11929 return pos - buf; 11930 pos += res; 11931 11932 if (drv->has_capability) { 11933 res = os_snprintf(pos, end - pos, 11934 "capa.key_mgmt=0x%x\n" 11935 "capa.enc=0x%x\n" 11936 "capa.auth=0x%x\n" 11937 "capa.flags=0x%x\n" 11938 "capa.max_scan_ssids=%d\n" 11939 "capa.max_sched_scan_ssids=%d\n" 11940 "capa.sched_scan_supported=%d\n" 11941 "capa.max_match_sets=%d\n" 11942 "capa.max_remain_on_chan=%u\n" 11943 "capa.max_stations=%u\n" 11944 "capa.probe_resp_offloads=0x%x\n" 11945 "capa.max_acl_mac_addrs=%u\n" 11946 "capa.num_multichan_concurrent=%u\n", 11947 drv->capa.key_mgmt, 11948 drv->capa.enc, 11949 drv->capa.auth, 11950 drv->capa.flags, 11951 drv->capa.max_scan_ssids, 11952 drv->capa.max_sched_scan_ssids, 11953 drv->capa.sched_scan_supported, 11954 drv->capa.max_match_sets, 11955 drv->capa.max_remain_on_chan, 11956 drv->capa.max_stations, 11957 drv->capa.probe_resp_offloads, 11958 drv->capa.max_acl_mac_addrs, 11959 drv->capa.num_multichan_concurrent); 11960 if (res < 0 || res >= end - pos) 11961 return pos - buf; 11962 pos += res; 11963 } 11964 11965 return pos - buf; 11966} 11967 11968 11969static int set_beacon_data(struct nl_msg *msg, struct beacon_data *settings) 11970{ 11971 if (settings->head) 11972 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, 11973 settings->head_len, settings->head); 11974 11975 if (settings->tail) 11976 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, 11977 settings->tail_len, settings->tail); 11978 11979 if (settings->beacon_ies) 11980 NLA_PUT(msg, NL80211_ATTR_IE, 11981 settings->beacon_ies_len, settings->beacon_ies); 11982 11983 if (settings->proberesp_ies) 11984 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, 11985 settings->proberesp_ies_len, settings->proberesp_ies); 11986 11987 if (settings->assocresp_ies) 11988 NLA_PUT(msg, 11989 NL80211_ATTR_IE_ASSOC_RESP, 11990 settings->assocresp_ies_len, settings->assocresp_ies); 11991 11992 if (settings->probe_resp) 11993 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, 11994 settings->probe_resp_len, settings->probe_resp); 11995 11996 return 0; 11997 11998nla_put_failure: 11999 return -ENOBUFS; 12000} 12001 12002 12003static int nl80211_switch_channel(void *priv, struct csa_settings *settings) 12004{ 12005 struct nl_msg *msg; 12006 struct i802_bss *bss = priv; 12007 struct wpa_driver_nl80211_data *drv = bss->drv; 12008 struct nlattr *beacon_csa; 12009 int ret = -ENOBUFS; 12010 12011 wpa_printf(MSG_DEBUG, "nl80211: Channel switch request (cs_count=%u block_tx=%u freq=%d width=%d cf1=%d cf2=%d)", 12012 settings->cs_count, settings->block_tx, 12013 settings->freq_params.freq, settings->freq_params.bandwidth, 12014 settings->freq_params.center_freq1, 12015 settings->freq_params.center_freq2); 12016 12017 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_AP_CSA)) { 12018 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support channel switch command"); 12019 return -EOPNOTSUPP; 12020 } 12021 12022 if ((drv->nlmode != NL80211_IFTYPE_AP) && 12023 (drv->nlmode != NL80211_IFTYPE_P2P_GO)) 12024 return -EOPNOTSUPP; 12025 12026 /* check settings validity */ 12027 if (!settings->beacon_csa.tail || 12028 ((settings->beacon_csa.tail_len <= 12029 settings->counter_offset_beacon) || 12030 (settings->beacon_csa.tail[settings->counter_offset_beacon] != 12031 settings->cs_count))) 12032 return -EINVAL; 12033 12034 if (settings->beacon_csa.probe_resp && 12035 ((settings->beacon_csa.probe_resp_len <= 12036 settings->counter_offset_presp) || 12037 (settings->beacon_csa.probe_resp[settings->counter_offset_presp] != 12038 settings->cs_count))) 12039 return -EINVAL; 12040 12041 msg = nlmsg_alloc(); 12042 if (!msg) 12043 return -ENOMEM; 12044 12045 nl80211_cmd(drv, msg, 0, NL80211_CMD_CHANNEL_SWITCH); 12046 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 12047 NLA_PUT_U32(msg, NL80211_ATTR_CH_SWITCH_COUNT, settings->cs_count); 12048 ret = nl80211_put_freq_params(msg, &settings->freq_params); 12049 if (ret) 12050 goto error; 12051 12052 if (settings->block_tx) 12053 NLA_PUT_FLAG(msg, NL80211_ATTR_CH_SWITCH_BLOCK_TX); 12054 12055 /* beacon_after params */ 12056 ret = set_beacon_data(msg, &settings->beacon_after); 12057 if (ret) 12058 goto error; 12059 12060 /* beacon_csa params */ 12061 beacon_csa = nla_nest_start(msg, NL80211_ATTR_CSA_IES); 12062 if (!beacon_csa) 12063 goto nla_put_failure; 12064 12065 ret = set_beacon_data(msg, &settings->beacon_csa); 12066 if (ret) 12067 goto error; 12068 12069 NLA_PUT_U16(msg, NL80211_ATTR_CSA_C_OFF_BEACON, 12070 settings->counter_offset_beacon); 12071 12072 if (settings->beacon_csa.probe_resp) 12073 NLA_PUT_U16(msg, NL80211_ATTR_CSA_C_OFF_PRESP, 12074 settings->counter_offset_presp); 12075 12076 nla_nest_end(msg, beacon_csa); 12077 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 12078 if (ret) { 12079 wpa_printf(MSG_DEBUG, "nl80211: switch_channel failed err=%d (%s)", 12080 ret, strerror(-ret)); 12081 } 12082 return ret; 12083 12084nla_put_failure: 12085 ret = -ENOBUFS; 12086error: 12087 nlmsg_free(msg); 12088 wpa_printf(MSG_DEBUG, "nl80211: Could not build channel switch request"); 12089 return ret; 12090} 12091 12092 12093#ifdef CONFIG_TESTING_OPTIONS 12094static int cmd_reply_handler(struct nl_msg *msg, void *arg) 12095{ 12096 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 12097 struct wpabuf *buf = arg; 12098 12099 if (!buf) 12100 return NL_SKIP; 12101 12102 if ((size_t) genlmsg_attrlen(gnlh, 0) > wpabuf_tailroom(buf)) { 12103 wpa_printf(MSG_INFO, "nl80211: insufficient buffer space for reply"); 12104 return NL_SKIP; 12105 } 12106 12107 wpabuf_put_data(buf, genlmsg_attrdata(gnlh, 0), 12108 genlmsg_attrlen(gnlh, 0)); 12109 12110 return NL_SKIP; 12111} 12112#endif /* CONFIG_TESTING_OPTIONS */ 12113 12114 12115static int vendor_reply_handler(struct nl_msg *msg, void *arg) 12116{ 12117 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 12118 struct nlattr *nl_vendor_reply, *nl; 12119 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 12120 struct wpabuf *buf = arg; 12121 int rem; 12122 12123 if (!buf) 12124 return NL_SKIP; 12125 12126 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 12127 genlmsg_attrlen(gnlh, 0), NULL); 12128 nl_vendor_reply = tb[NL80211_ATTR_VENDOR_DATA]; 12129 12130 if (!nl_vendor_reply) 12131 return NL_SKIP; 12132 12133 if ((size_t) nla_len(nl_vendor_reply) > wpabuf_tailroom(buf)) { 12134 wpa_printf(MSG_INFO, "nl80211: Vendor command: insufficient buffer space for reply"); 12135 return NL_SKIP; 12136 } 12137 12138 nla_for_each_nested(nl, nl_vendor_reply, rem) { 12139 wpabuf_put_data(buf, nla_data(nl), nla_len(nl)); 12140 } 12141 12142 return NL_SKIP; 12143} 12144 12145 12146static int nl80211_vendor_cmd(void *priv, unsigned int vendor_id, 12147 unsigned int subcmd, const u8 *data, 12148 size_t data_len, struct wpabuf *buf) 12149{ 12150 struct i802_bss *bss = priv; 12151 struct wpa_driver_nl80211_data *drv = bss->drv; 12152 struct nl_msg *msg; 12153 int ret; 12154 12155 msg = nlmsg_alloc(); 12156 if (!msg) 12157 return -ENOMEM; 12158 12159#ifdef CONFIG_TESTING_OPTIONS 12160 if (vendor_id == 0xffffffff) { 12161 nl80211_cmd(drv, msg, 0, subcmd); 12162 if (nlmsg_append(msg, (void *) data, data_len, NLMSG_ALIGNTO) < 12163 0) 12164 goto nla_put_failure; 12165 ret = send_and_recv_msgs(drv, msg, cmd_reply_handler, buf); 12166 if (ret) 12167 wpa_printf(MSG_DEBUG, "nl80211: command failed err=%d", 12168 ret); 12169 return ret; 12170 } 12171#endif /* CONFIG_TESTING_OPTIONS */ 12172 12173 nl80211_cmd(drv, msg, 0, NL80211_CMD_VENDOR); 12174 if (nl80211_set_iface_id(msg, bss) < 0) 12175 goto nla_put_failure; 12176 NLA_PUT_U32(msg, NL80211_ATTR_VENDOR_ID, vendor_id); 12177 NLA_PUT_U32(msg, NL80211_ATTR_VENDOR_SUBCMD, subcmd); 12178 if (data) 12179 NLA_PUT(msg, NL80211_ATTR_VENDOR_DATA, data_len, data); 12180 12181 ret = send_and_recv_msgs(drv, msg, vendor_reply_handler, buf); 12182 if (ret) 12183 wpa_printf(MSG_DEBUG, "nl80211: vendor command failed err=%d", 12184 ret); 12185 return ret; 12186 12187nla_put_failure: 12188 nlmsg_free(msg); 12189 return -ENOBUFS; 12190} 12191 12192 12193static int nl80211_set_qos_map(void *priv, const u8 *qos_map_set, 12194 u8 qos_map_set_len) 12195{ 12196 struct i802_bss *bss = priv; 12197 struct wpa_driver_nl80211_data *drv = bss->drv; 12198 struct nl_msg *msg; 12199 int ret; 12200 12201 msg = nlmsg_alloc(); 12202 if (!msg) 12203 return -ENOMEM; 12204 12205 wpa_hexdump(MSG_DEBUG, "nl80211: Setting QoS Map", 12206 qos_map_set, qos_map_set_len); 12207 12208 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_QOS_MAP); 12209 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 12210 NLA_PUT(msg, NL80211_ATTR_QOS_MAP, qos_map_set_len, qos_map_set); 12211 12212 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 12213 if (ret) 12214 wpa_printf(MSG_DEBUG, "nl80211: Setting QoS Map failed"); 12215 12216 return ret; 12217 12218nla_put_failure: 12219 nlmsg_free(msg); 12220 return -ENOBUFS; 12221} 12222 12223 12224static int nl80211_set_wowlan(void *priv, 12225 const struct wowlan_triggers *triggers) 12226{ 12227 struct i802_bss *bss = priv; 12228 struct wpa_driver_nl80211_data *drv = bss->drv; 12229 struct nl_msg *msg; 12230 struct nlattr *wowlan_triggers; 12231 int ret; 12232 12233 msg = nlmsg_alloc(); 12234 if (!msg) 12235 return -ENOMEM; 12236 12237 wpa_printf(MSG_DEBUG, "nl80211: Setting wowlan"); 12238 12239 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WOWLAN); 12240 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 12241 12242 wowlan_triggers = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS); 12243 if (!wowlan_triggers) 12244 goto nla_put_failure; 12245 12246 if (triggers->any) 12247 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY); 12248 if (triggers->disconnect) 12249 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT); 12250 if (triggers->magic_pkt) 12251 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT); 12252 if (triggers->gtk_rekey_failure) 12253 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE); 12254 if (triggers->eap_identity_req) 12255 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST); 12256 if (triggers->four_way_handshake) 12257 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE); 12258 if (triggers->rfkill_release) 12259 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE); 12260 12261 nla_nest_end(msg, wowlan_triggers); 12262 12263 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 12264 if (ret) 12265 wpa_printf(MSG_DEBUG, "nl80211: Setting wowlan failed"); 12266 12267 return ret; 12268 12269nla_put_failure: 12270 nlmsg_free(msg); 12271 return -ENOBUFS; 12272} 12273 12274 12275const struct wpa_driver_ops wpa_driver_nl80211_ops = { 12276 .name = "nl80211", 12277 .desc = "Linux nl80211/cfg80211", 12278 .get_bssid = wpa_driver_nl80211_get_bssid, 12279 .get_ssid = wpa_driver_nl80211_get_ssid, 12280 .set_key = driver_nl80211_set_key, 12281 .scan2 = driver_nl80211_scan2, 12282 .sched_scan = wpa_driver_nl80211_sched_scan, 12283 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan, 12284 .get_scan_results2 = wpa_driver_nl80211_get_scan_results, 12285 .deauthenticate = driver_nl80211_deauthenticate, 12286 .authenticate = driver_nl80211_authenticate, 12287 .associate = wpa_driver_nl80211_associate, 12288 .global_init = nl80211_global_init, 12289 .global_deinit = nl80211_global_deinit, 12290 .init2 = wpa_driver_nl80211_init, 12291 .deinit = driver_nl80211_deinit, 12292 .get_capa = wpa_driver_nl80211_get_capa, 12293 .set_operstate = wpa_driver_nl80211_set_operstate, 12294 .set_supp_port = wpa_driver_nl80211_set_supp_port, 12295 .set_country = wpa_driver_nl80211_set_country, 12296 .get_country = wpa_driver_nl80211_get_country, 12297 .set_ap = wpa_driver_nl80211_set_ap, 12298 .set_acl = wpa_driver_nl80211_set_acl, 12299 .if_add = wpa_driver_nl80211_if_add, 12300 .if_remove = driver_nl80211_if_remove, 12301 .send_mlme = driver_nl80211_send_mlme, 12302 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data, 12303 .sta_add = wpa_driver_nl80211_sta_add, 12304 .sta_remove = driver_nl80211_sta_remove, 12305 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol, 12306 .sta_set_flags = wpa_driver_nl80211_sta_set_flags, 12307 .hapd_init = i802_init, 12308 .hapd_deinit = i802_deinit, 12309 .set_wds_sta = i802_set_wds_sta, 12310 .get_seqnum = i802_get_seqnum, 12311 .flush = i802_flush, 12312 .get_inact_sec = i802_get_inact_sec, 12313 .sta_clear_stats = i802_sta_clear_stats, 12314 .set_rts = i802_set_rts, 12315 .set_frag = i802_set_frag, 12316 .set_tx_queue_params = i802_set_tx_queue_params, 12317 .set_sta_vlan = driver_nl80211_set_sta_vlan, 12318 .sta_deauth = i802_sta_deauth, 12319 .sta_disassoc = i802_sta_disassoc, 12320 .read_sta_data = driver_nl80211_read_sta_data, 12321 .set_freq = i802_set_freq, 12322 .send_action = driver_nl80211_send_action, 12323 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait, 12324 .remain_on_channel = wpa_driver_nl80211_remain_on_channel, 12325 .cancel_remain_on_channel = 12326 wpa_driver_nl80211_cancel_remain_on_channel, 12327 .probe_req_report = driver_nl80211_probe_req_report, 12328 .deinit_ap = wpa_driver_nl80211_deinit_ap, 12329 .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli, 12330 .resume = wpa_driver_nl80211_resume, 12331 .send_ft_action = nl80211_send_ft_action, 12332 .signal_monitor = nl80211_signal_monitor, 12333 .signal_poll = nl80211_signal_poll, 12334 .send_frame = nl80211_send_frame, 12335 .shared_freq = wpa_driver_nl80211_shared_freq, 12336 .set_param = nl80211_set_param, 12337 .get_radio_name = nl80211_get_radio_name, 12338 .add_pmkid = nl80211_add_pmkid, 12339 .remove_pmkid = nl80211_remove_pmkid, 12340 .flush_pmkid = nl80211_flush_pmkid, 12341 .set_rekey_info = nl80211_set_rekey_info, 12342 .poll_client = nl80211_poll_client, 12343 .set_p2p_powersave = nl80211_set_p2p_powersave, 12344 .start_dfs_cac = nl80211_start_radar_detection, 12345 .stop_ap = wpa_driver_nl80211_stop_ap, 12346#ifdef CONFIG_TDLS 12347 .send_tdls_mgmt = nl80211_send_tdls_mgmt, 12348 .tdls_oper = nl80211_tdls_oper, 12349#endif /* CONFIG_TDLS */ 12350 .update_ft_ies = wpa_driver_nl80211_update_ft_ies, 12351 .get_mac_addr = wpa_driver_nl80211_get_macaddr, 12352 .get_survey = wpa_driver_nl80211_get_survey, 12353 .status = wpa_driver_nl80211_status, 12354 .switch_channel = nl80211_switch_channel, 12355#ifdef ANDROID_P2P 12356 .set_noa = wpa_driver_set_p2p_noa, 12357 .get_noa = wpa_driver_get_p2p_noa, 12358 .set_ap_wps_ie = wpa_driver_set_ap_wps_p2p_ie, 12359#endif /* ANDROID_P2P */ 12360#ifdef ANDROID 12361 .driver_cmd = wpa_driver_nl80211_driver_cmd, 12362#endif /* ANDROID */ 12363 .vendor_cmd = nl80211_vendor_cmd, 12364 .set_qos_map = nl80211_set_qos_map, 12365 .set_wowlan = nl80211_set_wowlan, 12366}; 12367