driver_nl80211.c revision 641185ebd73d9607756c87b22f6c520ab1846325
1/* 2 * Driver interaction with Linux nl80211/cfg80211 3 * Copyright (c) 2002-2012, 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/ieee802_11_defs.h" 32#include "common/ieee802_11_common.h" 33#include "l2_packet/l2_packet.h" 34#include "netlink.h" 35#include "linux_ioctl.h" 36#include "radiotap.h" 37#include "radiotap_iter.h" 38#include "rfkill.h" 39#include "driver.h" 40 41#ifndef SO_WIFI_STATUS 42# if defined(__sparc__) 43# define SO_WIFI_STATUS 0x0025 44# elif defined(__parisc__) 45# define SO_WIFI_STATUS 0x4022 46# else 47# define SO_WIFI_STATUS 41 48# endif 49 50# define SCM_WIFI_STATUS SO_WIFI_STATUS 51#endif 52 53#ifndef SO_EE_ORIGIN_TXSTATUS 54#define SO_EE_ORIGIN_TXSTATUS 4 55#endif 56 57#ifndef PACKET_TX_TIMESTAMP 58#define PACKET_TX_TIMESTAMP 16 59#endif 60 61#ifdef ANDROID 62#include "android_drv.h" 63#endif /* ANDROID */ 64#ifdef CONFIG_LIBNL20 65/* libnl 2.0 compatibility code */ 66#define nl_handle nl_sock 67#define nl80211_handle_alloc nl_socket_alloc_cb 68#define nl80211_handle_destroy nl_socket_free 69#else 70/* 71 * libnl 1.1 has a bug, it tries to allocate socket numbers densely 72 * but when you free a socket again it will mess up its bitmap and 73 * and use the wrong number the next time it needs a socket ID. 74 * Therefore, we wrap the handle alloc/destroy and add our own pid 75 * accounting. 76 */ 77static uint32_t port_bitmap[32] = { 0 }; 78 79static struct nl_handle *nl80211_handle_alloc(void *cb) 80{ 81 struct nl_handle *handle; 82 uint32_t pid = getpid() & 0x3FFFFF; 83 int i; 84 85 handle = nl_handle_alloc_cb(cb); 86 87 for (i = 0; i < 1024; i++) { 88 if (port_bitmap[i / 32] & (1 << (i % 32))) 89 continue; 90 port_bitmap[i / 32] |= 1 << (i % 32); 91 pid += i << 22; 92 break; 93 } 94 95 nl_socket_set_local_port(handle, pid); 96 97 return handle; 98} 99 100static void nl80211_handle_destroy(struct nl_handle *handle) 101{ 102 uint32_t port = nl_socket_get_local_port(handle); 103 104 port >>= 22; 105 port_bitmap[port / 32] &= ~(1 << (port % 32)); 106 107 nl_handle_destroy(handle); 108} 109#endif /* CONFIG_LIBNL20 */ 110 111 112static struct nl_handle * nl_create_handle(struct nl_cb *cb, const char *dbg) 113{ 114 struct nl_handle *handle; 115 116 handle = nl80211_handle_alloc(cb); 117 if (handle == NULL) { 118 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " 119 "callbacks (%s)", dbg); 120 return NULL; 121 } 122 123 if (genl_connect(handle)) { 124 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic " 125 "netlink (%s)", dbg); 126 nl80211_handle_destroy(handle); 127 return NULL; 128 } 129 130 return handle; 131} 132 133 134static void nl_destroy_handles(struct nl_handle **handle) 135{ 136 if (*handle == NULL) 137 return; 138 nl80211_handle_destroy(*handle); 139 *handle = NULL; 140} 141 142 143#if __WORDSIZE == 64 144#define ELOOP_SOCKET_INVALID (intptr_t) 0x8888888888888889ULL 145#else 146#define ELOOP_SOCKET_INVALID (intptr_t) 0x88888889ULL 147#endif 148 149static void nl80211_register_eloop_read(struct nl_handle **handle, 150 eloop_sock_handler handler, 151 void *eloop_data) 152{ 153 nl_socket_set_nonblocking(*handle); 154 eloop_register_read_sock(nl_socket_get_fd(*handle), handler, 155 eloop_data, *handle); 156 *handle = (void *) (((intptr_t) *handle) ^ ELOOP_SOCKET_INVALID); 157} 158 159 160static void nl80211_destroy_eloop_handle(struct nl_handle **handle) 161{ 162 *handle = (void *) (((intptr_t) *handle) ^ ELOOP_SOCKET_INVALID); 163 eloop_unregister_read_sock(nl_socket_get_fd(*handle)); 164 nl_destroy_handles(handle); 165} 166 167 168#ifndef IFF_LOWER_UP 169#define IFF_LOWER_UP 0x10000 /* driver signals L1 up */ 170#endif 171#ifndef IFF_DORMANT 172#define IFF_DORMANT 0x20000 /* driver signals dormant */ 173#endif 174 175#ifndef IF_OPER_DORMANT 176#define IF_OPER_DORMANT 5 177#endif 178#ifndef IF_OPER_UP 179#define IF_OPER_UP 6 180#endif 181 182struct nl80211_global { 183 struct dl_list interfaces; 184 int if_add_ifindex; 185 u64 if_add_wdevid; 186 int if_add_wdevid_set; 187 struct netlink_data *netlink; 188 struct nl_cb *nl_cb; 189 struct nl_handle *nl; 190 int nl80211_id; 191 int ioctl_sock; /* socket for ioctl() use */ 192 193 struct nl_handle *nl_event; 194}; 195 196struct nl80211_wiphy_data { 197 struct dl_list list; 198 struct dl_list bsss; 199 struct dl_list drvs; 200 201 struct nl_handle *nl_beacons; 202 struct nl_cb *nl_cb; 203 204 int wiphy_idx; 205}; 206 207static void nl80211_global_deinit(void *priv); 208 209struct i802_bss { 210 struct wpa_driver_nl80211_data *drv; 211 struct i802_bss *next; 212 int ifindex; 213 u64 wdev_id; 214 char ifname[IFNAMSIZ + 1]; 215 char brname[IFNAMSIZ]; 216 unsigned int beacon_set:1; 217 unsigned int added_if_into_bridge:1; 218 unsigned int added_bridge:1; 219 unsigned int in_deinit:1; 220 unsigned int wdev_id_set:1; 221 unsigned int added_if:1; 222 223 u8 addr[ETH_ALEN]; 224 225 int freq; 226 int if_dynamic; 227 228 void *ctx; 229 struct nl_handle *nl_preq, *nl_mgmt; 230 struct nl_cb *nl_cb; 231 232 struct nl80211_wiphy_data *wiphy_data; 233 struct dl_list wiphy_list; 234}; 235 236struct wpa_driver_nl80211_data { 237 struct nl80211_global *global; 238 struct dl_list list; 239 struct dl_list wiphy_list; 240 char phyname[32]; 241 void *ctx; 242 int ifindex; 243 int if_removed; 244 int if_disabled; 245 int ignore_if_down_event; 246 struct rfkill_data *rfkill; 247 struct wpa_driver_capa capa; 248 u8 *extended_capa, *extended_capa_mask; 249 unsigned int extended_capa_len; 250 int has_capability; 251 252 int operstate; 253 254 int scan_complete_events; 255 enum scan_states { 256 NO_SCAN, SCAN_REQUESTED, SCAN_STARTED, SCAN_COMPLETED, 257 SCAN_ABORTED, SCHED_SCAN_STARTED, SCHED_SCAN_STOPPED, 258 SCHED_SCAN_RESULTS 259 } scan_state; 260 261 struct nl_cb *nl_cb; 262 263 u8 auth_bssid[ETH_ALEN]; 264 u8 auth_attempt_bssid[ETH_ALEN]; 265 u8 bssid[ETH_ALEN]; 266 u8 prev_bssid[ETH_ALEN]; 267 int associated; 268 u8 ssid[32]; 269 size_t ssid_len; 270 enum nl80211_iftype nlmode; 271 enum nl80211_iftype ap_scan_as_station; 272 unsigned int assoc_freq; 273 274 int monitor_sock; 275 int monitor_ifidx; 276 int monitor_refcount; 277 278 unsigned int disabled_11b_rates:1; 279 unsigned int pending_remain_on_chan:1; 280 unsigned int in_interface_list:1; 281 unsigned int device_ap_sme:1; 282 unsigned int poll_command_supported:1; 283 unsigned int data_tx_status:1; 284 unsigned int scan_for_auth:1; 285 unsigned int retry_auth:1; 286 unsigned int use_monitor:1; 287 unsigned int ignore_next_local_disconnect:1; 288 unsigned int allow_p2p_device:1; 289 290 u64 remain_on_chan_cookie; 291 u64 send_action_cookie; 292 293 unsigned int last_mgmt_freq; 294 295 struct wpa_driver_scan_filter *filter_ssids; 296 size_t num_filter_ssids; 297 298 struct i802_bss *first_bss; 299 300 int eapol_tx_sock; 301 302#ifdef HOSTAPD 303 int eapol_sock; /* socket for EAPOL frames */ 304 305 int default_if_indices[16]; 306 int *if_indices; 307 int num_if_indices; 308 309 int last_freq; 310 int last_freq_ht; 311#endif /* HOSTAPD */ 312 313 /* From failed authentication command */ 314 int auth_freq; 315 u8 auth_bssid_[ETH_ALEN]; 316 u8 auth_ssid[32]; 317 size_t auth_ssid_len; 318 int auth_alg; 319 u8 *auth_ie; 320 size_t auth_ie_len; 321 u8 auth_wep_key[4][16]; 322 size_t auth_wep_key_len[4]; 323 int auth_wep_tx_keyidx; 324 int auth_local_state_change; 325 int auth_p2p; 326}; 327 328 329static void wpa_driver_nl80211_deinit(struct i802_bss *bss); 330static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, 331 void *timeout_ctx); 332static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 333 enum nl80211_iftype nlmode); 334static int 335wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv); 336static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 337 const u8 *addr, int cmd, u16 reason_code, 338 int local_state_change); 339static void nl80211_remove_monitor_interface( 340 struct wpa_driver_nl80211_data *drv); 341static int nl80211_send_frame_cmd(struct i802_bss *bss, 342 unsigned int freq, unsigned int wait, 343 const u8 *buf, size_t buf_len, u64 *cookie, 344 int no_cck, int no_ack, int offchanok); 345static int nl80211_register_frame(struct i802_bss *bss, 346 struct nl_handle *hl_handle, 347 u16 type, const u8 *match, size_t match_len); 348static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, 349 int report); 350#ifdef ANDROID 351static int android_pno_start(struct i802_bss *bss, 352 struct wpa_driver_scan_params *params); 353static int android_pno_stop(struct i802_bss *bss); 354#endif /* ANDROID */ 355#ifdef ANDROID_P2P 356int wpa_driver_set_p2p_noa(void *priv, u8 count, int start, int duration); 357int wpa_driver_get_p2p_noa(void *priv, u8 *buf, size_t len); 358int wpa_driver_set_p2p_ps(void *priv, int legacy_ps, int opp_ps, int ctwindow); 359int wpa_driver_set_ap_wps_p2p_ie(void *priv, const struct wpabuf *beacon, 360 const struct wpabuf *proberesp, 361 const struct wpabuf *assocresp); 362 363#endif 364#ifdef HOSTAPD 365static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 366static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 367static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 368static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 369 enum wpa_driver_if_type type, 370 const char *ifname); 371#else /* HOSTAPD */ 372static inline void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 373{ 374} 375 376static inline void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 377{ 378} 379 380static inline int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 381{ 382 return 0; 383} 384#endif /* HOSTAPD */ 385#ifdef ANDROID 386extern int wpa_driver_nl80211_driver_cmd(void *priv, char *cmd, char *buf, 387 size_t buf_len); 388#endif 389 390static int wpa_driver_nl80211_set_freq(struct i802_bss *bss, 391 struct hostapd_freq_params *freq); 392static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 393 int ifindex, int disabled); 394 395static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv); 396static int wpa_driver_nl80211_authenticate_retry( 397 struct wpa_driver_nl80211_data *drv); 398 399static int i802_set_iface_flags(struct i802_bss *bss, int up); 400 401 402static const char * nl80211_command_to_string(enum nl80211_commands cmd) 403{ 404#define C2S(x) case x: return #x; 405 switch (cmd) { 406 C2S(NL80211_CMD_UNSPEC) 407 C2S(NL80211_CMD_GET_WIPHY) 408 C2S(NL80211_CMD_SET_WIPHY) 409 C2S(NL80211_CMD_NEW_WIPHY) 410 C2S(NL80211_CMD_DEL_WIPHY) 411 C2S(NL80211_CMD_GET_INTERFACE) 412 C2S(NL80211_CMD_SET_INTERFACE) 413 C2S(NL80211_CMD_NEW_INTERFACE) 414 C2S(NL80211_CMD_DEL_INTERFACE) 415 C2S(NL80211_CMD_GET_KEY) 416 C2S(NL80211_CMD_SET_KEY) 417 C2S(NL80211_CMD_NEW_KEY) 418 C2S(NL80211_CMD_DEL_KEY) 419 C2S(NL80211_CMD_GET_BEACON) 420 C2S(NL80211_CMD_SET_BEACON) 421 C2S(NL80211_CMD_START_AP) 422 C2S(NL80211_CMD_STOP_AP) 423 C2S(NL80211_CMD_GET_STATION) 424 C2S(NL80211_CMD_SET_STATION) 425 C2S(NL80211_CMD_NEW_STATION) 426 C2S(NL80211_CMD_DEL_STATION) 427 C2S(NL80211_CMD_GET_MPATH) 428 C2S(NL80211_CMD_SET_MPATH) 429 C2S(NL80211_CMD_NEW_MPATH) 430 C2S(NL80211_CMD_DEL_MPATH) 431 C2S(NL80211_CMD_SET_BSS) 432 C2S(NL80211_CMD_SET_REG) 433 C2S(NL80211_CMD_REQ_SET_REG) 434 C2S(NL80211_CMD_GET_MESH_CONFIG) 435 C2S(NL80211_CMD_SET_MESH_CONFIG) 436 C2S(NL80211_CMD_SET_MGMT_EXTRA_IE) 437 C2S(NL80211_CMD_GET_REG) 438 C2S(NL80211_CMD_GET_SCAN) 439 C2S(NL80211_CMD_TRIGGER_SCAN) 440 C2S(NL80211_CMD_NEW_SCAN_RESULTS) 441 C2S(NL80211_CMD_SCAN_ABORTED) 442 C2S(NL80211_CMD_REG_CHANGE) 443 C2S(NL80211_CMD_AUTHENTICATE) 444 C2S(NL80211_CMD_ASSOCIATE) 445 C2S(NL80211_CMD_DEAUTHENTICATE) 446 C2S(NL80211_CMD_DISASSOCIATE) 447 C2S(NL80211_CMD_MICHAEL_MIC_FAILURE) 448 C2S(NL80211_CMD_REG_BEACON_HINT) 449 C2S(NL80211_CMD_JOIN_IBSS) 450 C2S(NL80211_CMD_LEAVE_IBSS) 451 C2S(NL80211_CMD_TESTMODE) 452 C2S(NL80211_CMD_CONNECT) 453 C2S(NL80211_CMD_ROAM) 454 C2S(NL80211_CMD_DISCONNECT) 455 C2S(NL80211_CMD_SET_WIPHY_NETNS) 456 C2S(NL80211_CMD_GET_SURVEY) 457 C2S(NL80211_CMD_NEW_SURVEY_RESULTS) 458 C2S(NL80211_CMD_SET_PMKSA) 459 C2S(NL80211_CMD_DEL_PMKSA) 460 C2S(NL80211_CMD_FLUSH_PMKSA) 461 C2S(NL80211_CMD_REMAIN_ON_CHANNEL) 462 C2S(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL) 463 C2S(NL80211_CMD_SET_TX_BITRATE_MASK) 464 C2S(NL80211_CMD_REGISTER_FRAME) 465 C2S(NL80211_CMD_FRAME) 466 C2S(NL80211_CMD_FRAME_TX_STATUS) 467 C2S(NL80211_CMD_SET_POWER_SAVE) 468 C2S(NL80211_CMD_GET_POWER_SAVE) 469 C2S(NL80211_CMD_SET_CQM) 470 C2S(NL80211_CMD_NOTIFY_CQM) 471 C2S(NL80211_CMD_SET_CHANNEL) 472 C2S(NL80211_CMD_SET_WDS_PEER) 473 C2S(NL80211_CMD_FRAME_WAIT_CANCEL) 474 C2S(NL80211_CMD_JOIN_MESH) 475 C2S(NL80211_CMD_LEAVE_MESH) 476 C2S(NL80211_CMD_UNPROT_DEAUTHENTICATE) 477 C2S(NL80211_CMD_UNPROT_DISASSOCIATE) 478 C2S(NL80211_CMD_NEW_PEER_CANDIDATE) 479 C2S(NL80211_CMD_GET_WOWLAN) 480 C2S(NL80211_CMD_SET_WOWLAN) 481 C2S(NL80211_CMD_START_SCHED_SCAN) 482 C2S(NL80211_CMD_STOP_SCHED_SCAN) 483 C2S(NL80211_CMD_SCHED_SCAN_RESULTS) 484 C2S(NL80211_CMD_SCHED_SCAN_STOPPED) 485 C2S(NL80211_CMD_SET_REKEY_OFFLOAD) 486 C2S(NL80211_CMD_PMKSA_CANDIDATE) 487 C2S(NL80211_CMD_TDLS_OPER) 488 C2S(NL80211_CMD_TDLS_MGMT) 489 C2S(NL80211_CMD_UNEXPECTED_FRAME) 490 C2S(NL80211_CMD_PROBE_CLIENT) 491 C2S(NL80211_CMD_REGISTER_BEACONS) 492 C2S(NL80211_CMD_UNEXPECTED_4ADDR_FRAME) 493 C2S(NL80211_CMD_SET_NOACK_MAP) 494 C2S(NL80211_CMD_CH_SWITCH_NOTIFY) 495 C2S(NL80211_CMD_START_P2P_DEVICE) 496 C2S(NL80211_CMD_STOP_P2P_DEVICE) 497 C2S(NL80211_CMD_CONN_FAILED) 498 C2S(NL80211_CMD_SET_MCAST_RATE) 499 C2S(NL80211_CMD_SET_MAC_ACL) 500 C2S(NL80211_CMD_RADAR_DETECT) 501 C2S(NL80211_CMD_GET_PROTOCOL_FEATURES) 502 C2S(NL80211_CMD_UPDATE_FT_IES) 503 C2S(NL80211_CMD_FT_EVENT) 504 C2S(NL80211_CMD_CRIT_PROTOCOL_START) 505 C2S(NL80211_CMD_CRIT_PROTOCOL_STOP) 506 default: 507 return "NL80211_CMD_UNKNOWN"; 508 } 509#undef C2S 510} 511 512 513static int is_ap_interface(enum nl80211_iftype nlmode) 514{ 515 return (nlmode == NL80211_IFTYPE_AP || 516 nlmode == NL80211_IFTYPE_P2P_GO); 517} 518 519 520static int is_sta_interface(enum nl80211_iftype nlmode) 521{ 522 return (nlmode == NL80211_IFTYPE_STATION || 523 nlmode == NL80211_IFTYPE_P2P_CLIENT); 524} 525 526 527static int is_p2p_net_interface(enum nl80211_iftype nlmode) 528{ 529 return (nlmode == NL80211_IFTYPE_P2P_CLIENT || 530 nlmode == NL80211_IFTYPE_P2P_GO); 531} 532 533 534static void nl80211_mark_disconnected(struct wpa_driver_nl80211_data *drv) 535{ 536 if (drv->associated) 537 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); 538 drv->associated = 0; 539 os_memset(drv->bssid, 0, ETH_ALEN); 540} 541 542 543struct nl80211_bss_info_arg { 544 struct wpa_driver_nl80211_data *drv; 545 struct wpa_scan_results *res; 546 unsigned int assoc_freq; 547 u8 assoc_bssid[ETH_ALEN]; 548}; 549 550static int bss_info_handler(struct nl_msg *msg, void *arg); 551 552 553/* nl80211 code */ 554static int ack_handler(struct nl_msg *msg, void *arg) 555{ 556 int *err = arg; 557 *err = 0; 558 return NL_STOP; 559} 560 561static int finish_handler(struct nl_msg *msg, void *arg) 562{ 563 int *ret = arg; 564 *ret = 0; 565 return NL_SKIP; 566} 567 568static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err, 569 void *arg) 570{ 571 int *ret = arg; 572 *ret = err->error; 573 return NL_SKIP; 574} 575 576 577static int no_seq_check(struct nl_msg *msg, void *arg) 578{ 579 return NL_OK; 580} 581 582 583static int send_and_recv(struct nl80211_global *global, 584 struct nl_handle *nl_handle, struct nl_msg *msg, 585 int (*valid_handler)(struct nl_msg *, void *), 586 void *valid_data) 587{ 588 struct nl_cb *cb; 589 int err = -ENOMEM; 590 591 cb = nl_cb_clone(global->nl_cb); 592 if (!cb) 593 goto out; 594 595 err = nl_send_auto_complete(nl_handle, msg); 596 if (err < 0) 597 goto out; 598 599 err = 1; 600 601 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err); 602 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err); 603 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err); 604 605 if (valid_handler) 606 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, 607 valid_handler, valid_data); 608 609 while (err > 0) { 610 int res = nl_recvmsgs(nl_handle, cb); 611 if (res) { 612 wpa_printf(MSG_INFO, 613 "nl80211: %s->nl_recvmsgs failed: %d", 614 __func__, res); 615 } 616 } 617 out: 618 nl_cb_put(cb); 619 nlmsg_free(msg); 620 return err; 621} 622 623 624static int send_and_recv_msgs_global(struct nl80211_global *global, 625 struct nl_msg *msg, 626 int (*valid_handler)(struct nl_msg *, void *), 627 void *valid_data) 628{ 629 return send_and_recv(global, global->nl, msg, valid_handler, 630 valid_data); 631} 632 633 634static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv, 635 struct nl_msg *msg, 636 int (*valid_handler)(struct nl_msg *, void *), 637 void *valid_data) 638{ 639 return send_and_recv(drv->global, drv->global->nl, msg, 640 valid_handler, valid_data); 641} 642 643 644struct family_data { 645 const char *group; 646 int id; 647}; 648 649 650static int nl80211_set_iface_id(struct nl_msg *msg, struct i802_bss *bss) 651{ 652 if (bss->wdev_id_set) 653 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 654 else 655 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 656 return 0; 657 658nla_put_failure: 659 return -1; 660} 661 662 663static int family_handler(struct nl_msg *msg, void *arg) 664{ 665 struct family_data *res = arg; 666 struct nlattr *tb[CTRL_ATTR_MAX + 1]; 667 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 668 struct nlattr *mcgrp; 669 int i; 670 671 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 672 genlmsg_attrlen(gnlh, 0), NULL); 673 if (!tb[CTRL_ATTR_MCAST_GROUPS]) 674 return NL_SKIP; 675 676 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) { 677 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1]; 678 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp), 679 nla_len(mcgrp), NULL); 680 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] || 681 !tb2[CTRL_ATTR_MCAST_GRP_ID] || 682 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]), 683 res->group, 684 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0) 685 continue; 686 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]); 687 break; 688 }; 689 690 return NL_SKIP; 691} 692 693 694static int nl_get_multicast_id(struct nl80211_global *global, 695 const char *family, const char *group) 696{ 697 struct nl_msg *msg; 698 int ret = -1; 699 struct family_data res = { group, -ENOENT }; 700 701 msg = nlmsg_alloc(); 702 if (!msg) 703 return -ENOMEM; 704 genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"), 705 0, 0, CTRL_CMD_GETFAMILY, 0); 706 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family); 707 708 ret = send_and_recv_msgs_global(global, msg, family_handler, &res); 709 msg = NULL; 710 if (ret == 0) 711 ret = res.id; 712 713nla_put_failure: 714 nlmsg_free(msg); 715 return ret; 716} 717 718 719static void * nl80211_cmd(struct wpa_driver_nl80211_data *drv, 720 struct nl_msg *msg, int flags, uint8_t cmd) 721{ 722 return genlmsg_put(msg, 0, 0, drv->global->nl80211_id, 723 0, flags, cmd, 0); 724} 725 726 727struct wiphy_idx_data { 728 int wiphy_idx; 729 enum nl80211_iftype nlmode; 730 u8 *macaddr; 731}; 732 733 734static int netdev_info_handler(struct nl_msg *msg, void *arg) 735{ 736 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 737 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 738 struct wiphy_idx_data *info = arg; 739 740 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 741 genlmsg_attrlen(gnlh, 0), NULL); 742 743 if (tb[NL80211_ATTR_WIPHY]) 744 info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]); 745 746 if (tb[NL80211_ATTR_IFTYPE]) 747 info->nlmode = nla_get_u32(tb[NL80211_ATTR_IFTYPE]); 748 749 if (tb[NL80211_ATTR_MAC] && info->macaddr) 750 os_memcpy(info->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 751 ETH_ALEN); 752 753 return NL_SKIP; 754} 755 756 757static int nl80211_get_wiphy_index(struct i802_bss *bss) 758{ 759 struct nl_msg *msg; 760 struct wiphy_idx_data data = { 761 .wiphy_idx = -1, 762 .macaddr = NULL, 763 }; 764 765 msg = nlmsg_alloc(); 766 if (!msg) 767 return NL80211_IFTYPE_UNSPECIFIED; 768 769 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 770 771 if (nl80211_set_iface_id(msg, bss) < 0) 772 goto nla_put_failure; 773 774 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) 775 return data.wiphy_idx; 776 msg = NULL; 777nla_put_failure: 778 nlmsg_free(msg); 779 return -1; 780} 781 782 783static enum nl80211_iftype nl80211_get_ifmode(struct i802_bss *bss) 784{ 785 struct nl_msg *msg; 786 struct wiphy_idx_data data = { 787 .nlmode = NL80211_IFTYPE_UNSPECIFIED, 788 .macaddr = NULL, 789 }; 790 791 msg = nlmsg_alloc(); 792 if (!msg) 793 return -1; 794 795 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 796 797 if (nl80211_set_iface_id(msg, bss) < 0) 798 goto nla_put_failure; 799 800 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) 801 return data.nlmode; 802 msg = NULL; 803nla_put_failure: 804 nlmsg_free(msg); 805 return NL80211_IFTYPE_UNSPECIFIED; 806} 807 808 809#ifndef HOSTAPD 810static int nl80211_get_macaddr(struct i802_bss *bss) 811{ 812 struct nl_msg *msg; 813 struct wiphy_idx_data data = { 814 .macaddr = bss->addr, 815 }; 816 817 msg = nlmsg_alloc(); 818 if (!msg) 819 return NL80211_IFTYPE_UNSPECIFIED; 820 821 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 822 if (nl80211_set_iface_id(msg, bss) < 0) 823 goto nla_put_failure; 824 825 return send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data); 826 827nla_put_failure: 828 nlmsg_free(msg); 829 return NL80211_IFTYPE_UNSPECIFIED; 830} 831#endif /* HOSTAPD */ 832 833 834static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv, 835 struct nl80211_wiphy_data *w) 836{ 837 struct nl_msg *msg; 838 int ret = -1; 839 840 msg = nlmsg_alloc(); 841 if (!msg) 842 return -1; 843 844 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS); 845 846 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx); 847 848 ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL); 849 msg = NULL; 850 if (ret) { 851 wpa_printf(MSG_DEBUG, "nl80211: Register beacons command " 852 "failed: ret=%d (%s)", 853 ret, strerror(-ret)); 854 goto nla_put_failure; 855 } 856 ret = 0; 857nla_put_failure: 858 nlmsg_free(msg); 859 return ret; 860} 861 862 863static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle) 864{ 865 struct nl80211_wiphy_data *w = eloop_ctx; 866 int res; 867 868 wpa_printf(MSG_EXCESSIVE, "nl80211: Beacon event message available"); 869 870 res = nl_recvmsgs(handle, w->nl_cb); 871 if (res) { 872 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d", 873 __func__, res); 874 } 875} 876 877 878static int process_beacon_event(struct nl_msg *msg, void *arg) 879{ 880 struct nl80211_wiphy_data *w = arg; 881 struct wpa_driver_nl80211_data *drv; 882 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 883 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 884 union wpa_event_data event; 885 886 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 887 genlmsg_attrlen(gnlh, 0), NULL); 888 889 if (gnlh->cmd != NL80211_CMD_FRAME) { 890 wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)", 891 gnlh->cmd); 892 return NL_SKIP; 893 } 894 895 if (!tb[NL80211_ATTR_FRAME]) 896 return NL_SKIP; 897 898 dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data, 899 wiphy_list) { 900 os_memset(&event, 0, sizeof(event)); 901 event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]); 902 event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]); 903 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 904 } 905 906 return NL_SKIP; 907} 908 909 910static struct nl80211_wiphy_data * 911nl80211_get_wiphy_data_ap(struct i802_bss *bss) 912{ 913 static DEFINE_DL_LIST(nl80211_wiphys); 914 struct nl80211_wiphy_data *w; 915 int wiphy_idx, found = 0; 916 struct i802_bss *tmp_bss; 917 918 if (bss->wiphy_data != NULL) 919 return bss->wiphy_data; 920 921 wiphy_idx = nl80211_get_wiphy_index(bss); 922 923 dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) { 924 if (w->wiphy_idx == wiphy_idx) 925 goto add; 926 } 927 928 /* alloc new one */ 929 w = os_zalloc(sizeof(*w)); 930 if (w == NULL) 931 return NULL; 932 w->wiphy_idx = wiphy_idx; 933 dl_list_init(&w->bsss); 934 dl_list_init(&w->drvs); 935 936 w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 937 if (!w->nl_cb) { 938 os_free(w); 939 return NULL; 940 } 941 nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL); 942 nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_beacon_event, 943 w); 944 945 w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb, 946 "wiphy beacons"); 947 if (w->nl_beacons == NULL) { 948 os_free(w); 949 return NULL; 950 } 951 952 if (nl80211_register_beacons(bss->drv, w)) { 953 nl_destroy_handles(&w->nl_beacons); 954 os_free(w); 955 return NULL; 956 } 957 958 nl80211_register_eloop_read(&w->nl_beacons, nl80211_recv_beacons, w); 959 960 dl_list_add(&nl80211_wiphys, &w->list); 961 962add: 963 /* drv entry for this bss already there? */ 964 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { 965 if (tmp_bss->drv == bss->drv) { 966 found = 1; 967 break; 968 } 969 } 970 /* if not add it */ 971 if (!found) 972 dl_list_add(&w->drvs, &bss->drv->wiphy_list); 973 974 dl_list_add(&w->bsss, &bss->wiphy_list); 975 bss->wiphy_data = w; 976 return w; 977} 978 979 980static void nl80211_put_wiphy_data_ap(struct i802_bss *bss) 981{ 982 struct nl80211_wiphy_data *w = bss->wiphy_data; 983 struct i802_bss *tmp_bss; 984 int found = 0; 985 986 if (w == NULL) 987 return; 988 bss->wiphy_data = NULL; 989 dl_list_del(&bss->wiphy_list); 990 991 /* still any for this drv present? */ 992 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { 993 if (tmp_bss->drv == bss->drv) { 994 found = 1; 995 break; 996 } 997 } 998 /* if not remove it */ 999 if (!found) 1000 dl_list_del(&bss->drv->wiphy_list); 1001 1002 if (!dl_list_empty(&w->bsss)) 1003 return; 1004 1005 nl80211_destroy_eloop_handle(&w->nl_beacons); 1006 1007 nl_cb_put(w->nl_cb); 1008 dl_list_del(&w->list); 1009 os_free(w); 1010} 1011 1012 1013static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid) 1014{ 1015 struct i802_bss *bss = priv; 1016 struct wpa_driver_nl80211_data *drv = bss->drv; 1017 if (!drv->associated) 1018 return -1; 1019 os_memcpy(bssid, drv->bssid, ETH_ALEN); 1020 return 0; 1021} 1022 1023 1024static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid) 1025{ 1026 struct i802_bss *bss = priv; 1027 struct wpa_driver_nl80211_data *drv = bss->drv; 1028 if (!drv->associated) 1029 return -1; 1030 os_memcpy(ssid, drv->ssid, drv->ssid_len); 1031 return drv->ssid_len; 1032} 1033 1034 1035static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv, 1036 char *buf, size_t len, int del) 1037{ 1038 union wpa_event_data event; 1039 1040 os_memset(&event, 0, sizeof(event)); 1041 if (len > sizeof(event.interface_status.ifname)) 1042 len = sizeof(event.interface_status.ifname) - 1; 1043 os_memcpy(event.interface_status.ifname, buf, len); 1044 event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED : 1045 EVENT_INTERFACE_ADDED; 1046 1047 wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s", 1048 del ? "DEL" : "NEW", 1049 event.interface_status.ifname, 1050 del ? "removed" : "added"); 1051 1052 if (os_strcmp(drv->first_bss->ifname, event.interface_status.ifname) == 1053 0) { 1054 if (del) { 1055 if (drv->if_removed) { 1056 wpa_printf(MSG_DEBUG, "nl80211: if_removed " 1057 "already set - ignore event"); 1058 return; 1059 } 1060 drv->if_removed = 1; 1061 } else { 1062 if (if_nametoindex(drv->first_bss->ifname) == 0) { 1063 wpa_printf(MSG_DEBUG, "nl80211: Interface %s " 1064 "does not exist - ignore " 1065 "RTM_NEWLINK", 1066 drv->first_bss->ifname); 1067 return; 1068 } 1069 if (!drv->if_removed) { 1070 wpa_printf(MSG_DEBUG, "nl80211: if_removed " 1071 "already cleared - ignore event"); 1072 return; 1073 } 1074 drv->if_removed = 0; 1075 } 1076 } 1077 1078 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); 1079} 1080 1081 1082static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv, 1083 u8 *buf, size_t len) 1084{ 1085 int attrlen, rta_len; 1086 struct rtattr *attr; 1087 1088 attrlen = len; 1089 attr = (struct rtattr *) buf; 1090 1091 rta_len = RTA_ALIGN(sizeof(struct rtattr)); 1092 while (RTA_OK(attr, attrlen)) { 1093 if (attr->rta_type == IFLA_IFNAME) { 1094 if (os_strcmp(((char *) attr) + rta_len, 1095 drv->first_bss->ifname) == 0) 1096 return 1; 1097 else 1098 break; 1099 } 1100 attr = RTA_NEXT(attr, attrlen); 1101 } 1102 1103 return 0; 1104} 1105 1106 1107static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv, 1108 int ifindex, u8 *buf, size_t len) 1109{ 1110 if (drv->ifindex == ifindex) 1111 return 1; 1112 1113 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) { 1114 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed " 1115 "interface"); 1116 wpa_driver_nl80211_finish_drv_init(drv); 1117 return 1; 1118 } 1119 1120 return 0; 1121} 1122 1123 1124static struct wpa_driver_nl80211_data * 1125nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len) 1126{ 1127 struct wpa_driver_nl80211_data *drv; 1128 dl_list_for_each(drv, &global->interfaces, 1129 struct wpa_driver_nl80211_data, list) { 1130 if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) || 1131 have_ifidx(drv, idx)) 1132 return drv; 1133 } 1134 return NULL; 1135} 1136 1137 1138static void wpa_driver_nl80211_event_rtm_newlink(void *ctx, 1139 struct ifinfomsg *ifi, 1140 u8 *buf, size_t len) 1141{ 1142 struct nl80211_global *global = ctx; 1143 struct wpa_driver_nl80211_data *drv; 1144 int attrlen, rta_len; 1145 struct rtattr *attr; 1146 u32 brid = 0; 1147 char namebuf[IFNAMSIZ]; 1148 1149 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); 1150 if (!drv) { 1151 wpa_printf(MSG_DEBUG, "nl80211: Ignore event for foreign " 1152 "ifindex %d", ifi->ifi_index); 1153 return; 1154 } 1155 1156 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x " 1157 "(%s%s%s%s)", 1158 drv->operstate, ifi->ifi_flags, 1159 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "", 1160 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "", 1161 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "", 1162 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : ""); 1163 1164 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) { 1165 if (if_indextoname(ifi->ifi_index, namebuf) && 1166 linux_iface_up(drv->global->ioctl_sock, 1167 drv->first_bss->ifname) > 0) { 1168 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " 1169 "event since interface %s is up", namebuf); 1170 return; 1171 } 1172 wpa_printf(MSG_DEBUG, "nl80211: Interface down"); 1173 if (drv->ignore_if_down_event) { 1174 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " 1175 "event generated by mode change"); 1176 drv->ignore_if_down_event = 0; 1177 } else { 1178 drv->if_disabled = 1; 1179 wpa_supplicant_event(drv->ctx, 1180 EVENT_INTERFACE_DISABLED, NULL); 1181 } 1182 } 1183 1184 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) { 1185 if (if_indextoname(ifi->ifi_index, namebuf) && 1186 linux_iface_up(drv->global->ioctl_sock, 1187 drv->first_bss->ifname) == 0) { 1188 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1189 "event since interface %s is down", 1190 namebuf); 1191 } else if (if_nametoindex(drv->first_bss->ifname) == 0) { 1192 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1193 "event since interface %s does not exist", 1194 drv->first_bss->ifname); 1195 } else if (drv->if_removed) { 1196 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1197 "event since interface %s is marked " 1198 "removed", drv->first_bss->ifname); 1199 } else { 1200 wpa_printf(MSG_DEBUG, "nl80211: Interface up"); 1201 drv->if_disabled = 0; 1202 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED, 1203 NULL); 1204 } 1205 } 1206 1207 /* 1208 * Some drivers send the association event before the operup event--in 1209 * this case, lifting operstate in wpa_driver_nl80211_set_operstate() 1210 * fails. This will hit us when wpa_supplicant does not need to do 1211 * IEEE 802.1X authentication 1212 */ 1213 if (drv->operstate == 1 && 1214 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP && 1215 !(ifi->ifi_flags & IFF_RUNNING)) 1216 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 1217 -1, IF_OPER_UP); 1218 1219 attrlen = len; 1220 attr = (struct rtattr *) buf; 1221 rta_len = RTA_ALIGN(sizeof(struct rtattr)); 1222 while (RTA_OK(attr, attrlen)) { 1223 if (attr->rta_type == IFLA_IFNAME) { 1224 wpa_driver_nl80211_event_link( 1225 drv, 1226 ((char *) attr) + rta_len, 1227 attr->rta_len - rta_len, 0); 1228 } else if (attr->rta_type == IFLA_MASTER) 1229 brid = nla_get_u32((struct nlattr *) attr); 1230 attr = RTA_NEXT(attr, attrlen); 1231 } 1232 1233 if (ifi->ifi_family == AF_BRIDGE && brid) { 1234 /* device has been added to bridge */ 1235 if_indextoname(brid, namebuf); 1236 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s", 1237 brid, namebuf); 1238 add_ifidx(drv, brid); 1239 } 1240} 1241 1242 1243static void wpa_driver_nl80211_event_rtm_dellink(void *ctx, 1244 struct ifinfomsg *ifi, 1245 u8 *buf, size_t len) 1246{ 1247 struct nl80211_global *global = ctx; 1248 struct wpa_driver_nl80211_data *drv; 1249 int attrlen, rta_len; 1250 struct rtattr *attr; 1251 u32 brid = 0; 1252 1253 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); 1254 if (!drv) { 1255 wpa_printf(MSG_DEBUG, "nl80211: Ignore dellink event for " 1256 "foreign ifindex %d", ifi->ifi_index); 1257 return; 1258 } 1259 1260 attrlen = len; 1261 attr = (struct rtattr *) buf; 1262 1263 rta_len = RTA_ALIGN(sizeof(struct rtattr)); 1264 while (RTA_OK(attr, attrlen)) { 1265 if (attr->rta_type == IFLA_IFNAME) { 1266 wpa_driver_nl80211_event_link( 1267 drv, 1268 ((char *) attr) + rta_len, 1269 attr->rta_len - rta_len, 1); 1270 } else if (attr->rta_type == IFLA_MASTER) 1271 brid = nla_get_u32((struct nlattr *) attr); 1272 attr = RTA_NEXT(attr, attrlen); 1273 } 1274 1275 if (ifi->ifi_family == AF_BRIDGE && brid) { 1276 /* device has been removed from bridge */ 1277 char namebuf[IFNAMSIZ]; 1278 if_indextoname(brid, namebuf); 1279 wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge " 1280 "%s", brid, namebuf); 1281 del_ifidx(drv, brid); 1282 } 1283} 1284 1285 1286static void mlme_event_auth(struct wpa_driver_nl80211_data *drv, 1287 const u8 *frame, size_t len) 1288{ 1289 const struct ieee80211_mgmt *mgmt; 1290 union wpa_event_data event; 1291 1292 wpa_printf(MSG_DEBUG, "nl80211: Authenticate event"); 1293 mgmt = (const struct ieee80211_mgmt *) frame; 1294 if (len < 24 + sizeof(mgmt->u.auth)) { 1295 wpa_printf(MSG_DEBUG, "nl80211: Too short association event " 1296 "frame"); 1297 return; 1298 } 1299 1300 os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN); 1301 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 1302 os_memset(&event, 0, sizeof(event)); 1303 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN); 1304 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg); 1305 event.auth.auth_transaction = 1306 le_to_host16(mgmt->u.auth.auth_transaction); 1307 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code); 1308 if (len > 24 + sizeof(mgmt->u.auth)) { 1309 event.auth.ies = mgmt->u.auth.variable; 1310 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth); 1311 } 1312 1313 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event); 1314} 1315 1316 1317static unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv) 1318{ 1319 struct nl_msg *msg; 1320 int ret; 1321 struct nl80211_bss_info_arg arg; 1322 1323 os_memset(&arg, 0, sizeof(arg)); 1324 msg = nlmsg_alloc(); 1325 if (!msg) 1326 goto nla_put_failure; 1327 1328 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 1329 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 1330 1331 arg.drv = drv; 1332 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 1333 msg = NULL; 1334 if (ret == 0) { 1335 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the " 1336 "associated BSS from scan results: %u MHz", 1337 arg.assoc_freq); 1338 if (arg.assoc_freq) 1339 drv->assoc_freq = arg.assoc_freq; 1340 return drv->assoc_freq; 1341 } 1342 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 1343 "(%s)", ret, strerror(-ret)); 1344nla_put_failure: 1345 nlmsg_free(msg); 1346 return drv->assoc_freq; 1347} 1348 1349 1350static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv, 1351 const u8 *frame, size_t len) 1352{ 1353 const struct ieee80211_mgmt *mgmt; 1354 union wpa_event_data event; 1355 u16 status; 1356 1357 wpa_printf(MSG_DEBUG, "nl80211: Associate event"); 1358 mgmt = (const struct ieee80211_mgmt *) frame; 1359 if (len < 24 + sizeof(mgmt->u.assoc_resp)) { 1360 wpa_printf(MSG_DEBUG, "nl80211: Too short association event " 1361 "frame"); 1362 return; 1363 } 1364 1365 status = le_to_host16(mgmt->u.assoc_resp.status_code); 1366 if (status != WLAN_STATUS_SUCCESS) { 1367 os_memset(&event, 0, sizeof(event)); 1368 event.assoc_reject.bssid = mgmt->bssid; 1369 if (len > 24 + sizeof(mgmt->u.assoc_resp)) { 1370 event.assoc_reject.resp_ies = 1371 (u8 *) mgmt->u.assoc_resp.variable; 1372 event.assoc_reject.resp_ies_len = 1373 len - 24 - sizeof(mgmt->u.assoc_resp); 1374 } 1375 event.assoc_reject.status_code = status; 1376 1377 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); 1378 return; 1379 } 1380 1381 drv->associated = 1; 1382 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN); 1383 os_memcpy(drv->prev_bssid, mgmt->sa, ETH_ALEN); 1384 1385 os_memset(&event, 0, sizeof(event)); 1386 if (len > 24 + sizeof(mgmt->u.assoc_resp)) { 1387 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable; 1388 event.assoc_info.resp_ies_len = 1389 len - 24 - sizeof(mgmt->u.assoc_resp); 1390 } 1391 1392 event.assoc_info.freq = drv->assoc_freq; 1393 1394 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); 1395} 1396 1397 1398static void mlme_event_connect(struct wpa_driver_nl80211_data *drv, 1399 enum nl80211_commands cmd, struct nlattr *status, 1400 struct nlattr *addr, struct nlattr *req_ie, 1401 struct nlattr *resp_ie) 1402{ 1403 union wpa_event_data event; 1404 1405 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 1406 /* 1407 * Avoid reporting two association events that would confuse 1408 * the core code. 1409 */ 1410 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) " 1411 "when using userspace SME", cmd); 1412 return; 1413 } 1414 1415 if (cmd == NL80211_CMD_CONNECT) 1416 wpa_printf(MSG_DEBUG, "nl80211: Connect event"); 1417 else if (cmd == NL80211_CMD_ROAM) 1418 wpa_printf(MSG_DEBUG, "nl80211: Roam event"); 1419 1420 os_memset(&event, 0, sizeof(event)); 1421 if (cmd == NL80211_CMD_CONNECT && 1422 nla_get_u16(status) != WLAN_STATUS_SUCCESS) { 1423 if (addr) 1424 event.assoc_reject.bssid = nla_data(addr); 1425 if (resp_ie) { 1426 event.assoc_reject.resp_ies = nla_data(resp_ie); 1427 event.assoc_reject.resp_ies_len = nla_len(resp_ie); 1428 } 1429 event.assoc_reject.status_code = nla_get_u16(status); 1430 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); 1431 return; 1432 } 1433 1434 drv->associated = 1; 1435 if (addr) { 1436 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN); 1437 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); 1438 } 1439 1440 if (req_ie) { 1441 event.assoc_info.req_ies = nla_data(req_ie); 1442 event.assoc_info.req_ies_len = nla_len(req_ie); 1443 } 1444 if (resp_ie) { 1445 event.assoc_info.resp_ies = nla_data(resp_ie); 1446 event.assoc_info.resp_ies_len = nla_len(resp_ie); 1447 } 1448 1449 event.assoc_info.freq = nl80211_get_assoc_freq(drv); 1450 1451 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); 1452} 1453 1454 1455static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv, 1456 struct nlattr *reason, struct nlattr *addr, 1457 struct nlattr *by_ap) 1458{ 1459 union wpa_event_data data; 1460 unsigned int locally_generated = by_ap == NULL; 1461 1462 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 1463 /* 1464 * Avoid reporting two disassociation events that could 1465 * confuse the core code. 1466 */ 1467 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " 1468 "event when using userspace SME"); 1469 return; 1470 } 1471 1472 if (drv->ignore_next_local_disconnect) { 1473 drv->ignore_next_local_disconnect = 0; 1474 if (locally_generated) { 1475 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " 1476 "event triggered during reassociation"); 1477 return; 1478 } 1479 wpa_printf(MSG_WARNING, "nl80211: Was expecting local " 1480 "disconnect but got another disconnect " 1481 "event first"); 1482 } 1483 1484 wpa_printf(MSG_DEBUG, "nl80211: Disconnect event"); 1485 nl80211_mark_disconnected(drv); 1486 os_memset(&data, 0, sizeof(data)); 1487 if (reason) 1488 data.deauth_info.reason_code = nla_get_u16(reason); 1489 data.deauth_info.locally_generated = by_ap == NULL; 1490 wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, &data); 1491} 1492 1493 1494static void mlme_event_ch_switch(struct wpa_driver_nl80211_data *drv, 1495 struct nlattr *freq, struct nlattr *type) 1496{ 1497 union wpa_event_data data; 1498 int ht_enabled = 1; 1499 int chan_offset = 0; 1500 1501 wpa_printf(MSG_DEBUG, "nl80211: Channel switch event"); 1502 1503 if (!freq || !type) 1504 return; 1505 1506 switch (nla_get_u32(type)) { 1507 case NL80211_CHAN_NO_HT: 1508 ht_enabled = 0; 1509 break; 1510 case NL80211_CHAN_HT20: 1511 break; 1512 case NL80211_CHAN_HT40PLUS: 1513 chan_offset = 1; 1514 break; 1515 case NL80211_CHAN_HT40MINUS: 1516 chan_offset = -1; 1517 break; 1518 } 1519 1520 data.ch_switch.freq = nla_get_u32(freq); 1521 data.ch_switch.ht_enabled = ht_enabled; 1522 data.ch_switch.ch_offset = chan_offset; 1523 1524 wpa_supplicant_event(drv->ctx, EVENT_CH_SWITCH, &data); 1525} 1526 1527 1528static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv, 1529 enum nl80211_commands cmd, struct nlattr *addr) 1530{ 1531 union wpa_event_data event; 1532 enum wpa_event_type ev; 1533 1534 if (nla_len(addr) != ETH_ALEN) 1535 return; 1536 1537 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR, 1538 cmd, MAC2STR((u8 *) nla_data(addr))); 1539 1540 if (cmd == NL80211_CMD_AUTHENTICATE) 1541 ev = EVENT_AUTH_TIMED_OUT; 1542 else if (cmd == NL80211_CMD_ASSOCIATE) 1543 ev = EVENT_ASSOC_TIMED_OUT; 1544 else 1545 return; 1546 1547 os_memset(&event, 0, sizeof(event)); 1548 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN); 1549 wpa_supplicant_event(drv->ctx, ev, &event); 1550} 1551 1552 1553static void mlme_event_mgmt(struct wpa_driver_nl80211_data *drv, 1554 struct nlattr *freq, struct nlattr *sig, 1555 const u8 *frame, size_t len) 1556{ 1557 const struct ieee80211_mgmt *mgmt; 1558 union wpa_event_data event; 1559 u16 fc, stype; 1560 int ssi_signal = 0; 1561 int rx_freq = 0; 1562 1563 wpa_printf(MSG_MSGDUMP, "nl80211: Frame event"); 1564 mgmt = (const struct ieee80211_mgmt *) frame; 1565 if (len < 24) { 1566 wpa_printf(MSG_DEBUG, "nl80211: Too short action frame"); 1567 return; 1568 } 1569 1570 fc = le_to_host16(mgmt->frame_control); 1571 stype = WLAN_FC_GET_STYPE(fc); 1572 1573 if (sig) 1574 ssi_signal = (s32) nla_get_u32(sig); 1575 1576 os_memset(&event, 0, sizeof(event)); 1577 if (freq) { 1578 event.rx_action.freq = nla_get_u32(freq); 1579 rx_freq = drv->last_mgmt_freq = event.rx_action.freq; 1580 } 1581 wpa_printf(MSG_DEBUG, 1582 "nl80211: RX frame freq=%d ssi_signal=%d stype=%u len=%u", 1583 rx_freq, ssi_signal, stype, (unsigned int) len); 1584 if (stype == WLAN_FC_STYPE_ACTION) { 1585 event.rx_action.da = mgmt->da; 1586 event.rx_action.sa = mgmt->sa; 1587 event.rx_action.bssid = mgmt->bssid; 1588 event.rx_action.category = mgmt->u.action.category; 1589 event.rx_action.data = &mgmt->u.action.category + 1; 1590 event.rx_action.len = frame + len - event.rx_action.data; 1591 wpa_supplicant_event(drv->ctx, EVENT_RX_ACTION, &event); 1592 } else { 1593 event.rx_mgmt.frame = frame; 1594 event.rx_mgmt.frame_len = len; 1595 event.rx_mgmt.ssi_signal = ssi_signal; 1596 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 1597 } 1598} 1599 1600 1601static void mlme_event_mgmt_tx_status(struct wpa_driver_nl80211_data *drv, 1602 struct nlattr *cookie, const u8 *frame, 1603 size_t len, struct nlattr *ack) 1604{ 1605 union wpa_event_data event; 1606 const struct ieee80211_hdr *hdr; 1607 u16 fc; 1608 1609 wpa_printf(MSG_DEBUG, "nl80211: Frame TX status event"); 1610 if (!is_ap_interface(drv->nlmode)) { 1611 u64 cookie_val; 1612 1613 if (!cookie) 1614 return; 1615 1616 cookie_val = nla_get_u64(cookie); 1617 wpa_printf(MSG_DEBUG, "nl80211: Action TX status:" 1618 " cookie=0%llx%s (ack=%d)", 1619 (long long unsigned int) cookie_val, 1620 cookie_val == drv->send_action_cookie ? 1621 " (match)" : " (unknown)", ack != NULL); 1622 if (cookie_val != drv->send_action_cookie) 1623 return; 1624 } 1625 1626 hdr = (const struct ieee80211_hdr *) frame; 1627 fc = le_to_host16(hdr->frame_control); 1628 1629 os_memset(&event, 0, sizeof(event)); 1630 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 1631 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 1632 event.tx_status.dst = hdr->addr1; 1633 event.tx_status.data = frame; 1634 event.tx_status.data_len = len; 1635 event.tx_status.ack = ack != NULL; 1636 wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event); 1637} 1638 1639 1640static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv, 1641 enum wpa_event_type type, 1642 const u8 *frame, size_t len) 1643{ 1644 const struct ieee80211_mgmt *mgmt; 1645 union wpa_event_data event; 1646 const u8 *bssid = NULL; 1647 u16 reason_code = 0; 1648 1649 if (type == EVENT_DEAUTH) 1650 wpa_printf(MSG_DEBUG, "nl80211: Deauthenticate event"); 1651 else 1652 wpa_printf(MSG_DEBUG, "nl80211: Disassociate event"); 1653 1654 mgmt = (const struct ieee80211_mgmt *) frame; 1655 if (len >= 24) { 1656 bssid = mgmt->bssid; 1657 1658 if ((drv->capa.flags & WPA_DRIVER_FLAGS_SME) && 1659 !drv->associated && 1660 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0 && 1661 os_memcmp(bssid, drv->auth_attempt_bssid, ETH_ALEN) != 0 && 1662 os_memcmp(bssid, drv->prev_bssid, ETH_ALEN) == 0) { 1663 /* 1664 * Avoid issues with some roaming cases where 1665 * disconnection event for the old AP may show up after 1666 * we have started connection with the new AP. 1667 */ 1668 wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth/disassoc event from old AP " MACSTR " when already authenticating with " MACSTR, 1669 MAC2STR(bssid), 1670 MAC2STR(drv->auth_attempt_bssid)); 1671 return; 1672 } 1673 1674 if (drv->associated != 0 && 1675 os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 && 1676 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) { 1677 /* 1678 * We have presumably received this deauth as a 1679 * response to a clear_state_mismatch() outgoing 1680 * deauth. Don't let it take us offline! 1681 */ 1682 wpa_printf(MSG_DEBUG, "nl80211: Deauth received " 1683 "from Unknown BSSID " MACSTR " -- ignoring", 1684 MAC2STR(bssid)); 1685 return; 1686 } 1687 } 1688 1689 nl80211_mark_disconnected(drv); 1690 os_memset(&event, 0, sizeof(event)); 1691 1692 /* Note: Same offset for Reason Code in both frame subtypes */ 1693 if (len >= 24 + sizeof(mgmt->u.deauth)) 1694 reason_code = le_to_host16(mgmt->u.deauth.reason_code); 1695 1696 if (type == EVENT_DISASSOC) { 1697 event.disassoc_info.locally_generated = 1698 !os_memcmp(mgmt->sa, drv->first_bss->addr, ETH_ALEN); 1699 event.disassoc_info.addr = bssid; 1700 event.disassoc_info.reason_code = reason_code; 1701 if (frame + len > mgmt->u.disassoc.variable) { 1702 event.disassoc_info.ie = mgmt->u.disassoc.variable; 1703 event.disassoc_info.ie_len = frame + len - 1704 mgmt->u.disassoc.variable; 1705 } 1706 } else { 1707 event.deauth_info.locally_generated = 1708 !os_memcmp(mgmt->sa, drv->first_bss->addr, ETH_ALEN); 1709 event.deauth_info.addr = bssid; 1710 event.deauth_info.reason_code = reason_code; 1711 if (frame + len > mgmt->u.deauth.variable) { 1712 event.deauth_info.ie = mgmt->u.deauth.variable; 1713 event.deauth_info.ie_len = frame + len - 1714 mgmt->u.deauth.variable; 1715 } 1716 } 1717 1718 wpa_supplicant_event(drv->ctx, type, &event); 1719} 1720 1721 1722static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv, 1723 enum wpa_event_type type, 1724 const u8 *frame, size_t len) 1725{ 1726 const struct ieee80211_mgmt *mgmt; 1727 union wpa_event_data event; 1728 u16 reason_code = 0; 1729 1730 if (type == EVENT_UNPROT_DEAUTH) 1731 wpa_printf(MSG_DEBUG, "nl80211: Unprot Deauthenticate event"); 1732 else 1733 wpa_printf(MSG_DEBUG, "nl80211: Unprot Disassociate event"); 1734 1735 if (len < 24) 1736 return; 1737 1738 mgmt = (const struct ieee80211_mgmt *) frame; 1739 1740 os_memset(&event, 0, sizeof(event)); 1741 /* Note: Same offset for Reason Code in both frame subtypes */ 1742 if (len >= 24 + sizeof(mgmt->u.deauth)) 1743 reason_code = le_to_host16(mgmt->u.deauth.reason_code); 1744 1745 if (type == EVENT_UNPROT_DISASSOC) { 1746 event.unprot_disassoc.sa = mgmt->sa; 1747 event.unprot_disassoc.da = mgmt->da; 1748 event.unprot_disassoc.reason_code = reason_code; 1749 } else { 1750 event.unprot_deauth.sa = mgmt->sa; 1751 event.unprot_deauth.da = mgmt->da; 1752 event.unprot_deauth.reason_code = reason_code; 1753 } 1754 1755 wpa_supplicant_event(drv->ctx, type, &event); 1756} 1757 1758 1759static void mlme_event(struct i802_bss *bss, 1760 enum nl80211_commands cmd, struct nlattr *frame, 1761 struct nlattr *addr, struct nlattr *timed_out, 1762 struct nlattr *freq, struct nlattr *ack, 1763 struct nlattr *cookie, struct nlattr *sig) 1764{ 1765 struct wpa_driver_nl80211_data *drv = bss->drv; 1766 const u8 *data; 1767 size_t len; 1768 1769 if (timed_out && addr) { 1770 mlme_timeout_event(drv, cmd, addr); 1771 return; 1772 } 1773 1774 if (frame == NULL) { 1775 wpa_printf(MSG_DEBUG, 1776 "nl80211: MLME event %d (%s) without frame data", 1777 cmd, nl80211_command_to_string(cmd)); 1778 return; 1779 } 1780 1781 data = nla_data(frame); 1782 len = nla_len(frame); 1783 if (len < 4 + 2 * ETH_ALEN) { 1784 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" 1785 MACSTR ") - too short", 1786 cmd, nl80211_command_to_string(cmd), bss->ifname, 1787 MAC2STR(bss->addr)); 1788 return; 1789 } 1790 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" MACSTR 1791 ") A1=" MACSTR " A2=" MACSTR, cmd, 1792 nl80211_command_to_string(cmd), bss->ifname, 1793 MAC2STR(bss->addr), MAC2STR(data + 4), 1794 MAC2STR(data + 4 + ETH_ALEN)); 1795 if (cmd != NL80211_CMD_FRAME_TX_STATUS && !(data[4] & 0x01) && 1796 os_memcmp(bss->addr, data + 4, ETH_ALEN) != 0 && 1797 os_memcmp(bss->addr, data + 4 + ETH_ALEN, ETH_ALEN) != 0) { 1798 wpa_printf(MSG_MSGDUMP, "nl80211: %s: Ignore MLME frame event " 1799 "for foreign address", bss->ifname); 1800 return; 1801 } 1802 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame", 1803 nla_data(frame), nla_len(frame)); 1804 1805 switch (cmd) { 1806 case NL80211_CMD_AUTHENTICATE: 1807 mlme_event_auth(drv, nla_data(frame), nla_len(frame)); 1808 break; 1809 case NL80211_CMD_ASSOCIATE: 1810 mlme_event_assoc(drv, nla_data(frame), nla_len(frame)); 1811 break; 1812 case NL80211_CMD_DEAUTHENTICATE: 1813 mlme_event_deauth_disassoc(drv, EVENT_DEAUTH, 1814 nla_data(frame), nla_len(frame)); 1815 break; 1816 case NL80211_CMD_DISASSOCIATE: 1817 mlme_event_deauth_disassoc(drv, EVENT_DISASSOC, 1818 nla_data(frame), nla_len(frame)); 1819 break; 1820 case NL80211_CMD_FRAME: 1821 mlme_event_mgmt(drv, freq, sig, nla_data(frame), 1822 nla_len(frame)); 1823 break; 1824 case NL80211_CMD_FRAME_TX_STATUS: 1825 mlme_event_mgmt_tx_status(drv, cookie, nla_data(frame), 1826 nla_len(frame), ack); 1827 break; 1828 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 1829 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH, 1830 nla_data(frame), nla_len(frame)); 1831 break; 1832 case NL80211_CMD_UNPROT_DISASSOCIATE: 1833 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC, 1834 nla_data(frame), nla_len(frame)); 1835 break; 1836 default: 1837 break; 1838 } 1839} 1840 1841 1842static void mlme_event_michael_mic_failure(struct i802_bss *bss, 1843 struct nlattr *tb[]) 1844{ 1845 union wpa_event_data data; 1846 1847 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure"); 1848 os_memset(&data, 0, sizeof(data)); 1849 if (tb[NL80211_ATTR_MAC]) { 1850 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address", 1851 nla_data(tb[NL80211_ATTR_MAC]), 1852 nla_len(tb[NL80211_ATTR_MAC])); 1853 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]); 1854 } 1855 if (tb[NL80211_ATTR_KEY_SEQ]) { 1856 wpa_hexdump(MSG_DEBUG, "nl80211: TSC", 1857 nla_data(tb[NL80211_ATTR_KEY_SEQ]), 1858 nla_len(tb[NL80211_ATTR_KEY_SEQ])); 1859 } 1860 if (tb[NL80211_ATTR_KEY_TYPE]) { 1861 enum nl80211_key_type key_type = 1862 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]); 1863 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type); 1864 if (key_type == NL80211_KEYTYPE_PAIRWISE) 1865 data.michael_mic_failure.unicast = 1; 1866 } else 1867 data.michael_mic_failure.unicast = 1; 1868 1869 if (tb[NL80211_ATTR_KEY_IDX]) { 1870 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]); 1871 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id); 1872 } 1873 1874 wpa_supplicant_event(bss->ctx, EVENT_MICHAEL_MIC_FAILURE, &data); 1875} 1876 1877 1878static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv, 1879 struct nlattr *tb[]) 1880{ 1881 if (tb[NL80211_ATTR_MAC] == NULL) { 1882 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined " 1883 "event"); 1884 return; 1885 } 1886 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 1887 1888 drv->associated = 1; 1889 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined", 1890 MAC2STR(drv->bssid)); 1891 1892 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL); 1893} 1894 1895 1896static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv, 1897 int cancel_event, struct nlattr *tb[]) 1898{ 1899 unsigned int freq, chan_type, duration; 1900 union wpa_event_data data; 1901 u64 cookie; 1902 1903 if (tb[NL80211_ATTR_WIPHY_FREQ]) 1904 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); 1905 else 1906 freq = 0; 1907 1908 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) 1909 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); 1910 else 1911 chan_type = 0; 1912 1913 if (tb[NL80211_ATTR_DURATION]) 1914 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]); 1915 else 1916 duration = 0; 1917 1918 if (tb[NL80211_ATTR_COOKIE]) 1919 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 1920 else 1921 cookie = 0; 1922 1923 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d " 1924 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))", 1925 cancel_event, freq, chan_type, duration, 1926 (long long unsigned int) cookie, 1927 cookie == drv->remain_on_chan_cookie ? "match" : "unknown"); 1928 1929 if (cookie != drv->remain_on_chan_cookie) 1930 return; /* not for us */ 1931 1932 if (cancel_event) 1933 drv->pending_remain_on_chan = 0; 1934 1935 os_memset(&data, 0, sizeof(data)); 1936 data.remain_on_channel.freq = freq; 1937 data.remain_on_channel.duration = duration; 1938 wpa_supplicant_event(drv->ctx, cancel_event ? 1939 EVENT_CANCEL_REMAIN_ON_CHANNEL : 1940 EVENT_REMAIN_ON_CHANNEL, &data); 1941} 1942 1943 1944static void mlme_event_ft_event(struct wpa_driver_nl80211_data *drv, 1945 struct nlattr *tb[]) 1946{ 1947 union wpa_event_data data; 1948 1949 os_memset(&data, 0, sizeof(data)); 1950 1951 if (tb[NL80211_ATTR_IE]) { 1952 data.ft_ies.ies = nla_data(tb[NL80211_ATTR_IE]); 1953 data.ft_ies.ies_len = nla_len(tb[NL80211_ATTR_IE]); 1954 } 1955 1956 if (tb[NL80211_ATTR_IE_RIC]) { 1957 data.ft_ies.ric_ies = nla_data(tb[NL80211_ATTR_IE_RIC]); 1958 data.ft_ies.ric_ies_len = nla_len(tb[NL80211_ATTR_IE_RIC]); 1959 } 1960 1961 if (tb[NL80211_ATTR_MAC]) 1962 os_memcpy(data.ft_ies.target_ap, 1963 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 1964 1965 wpa_printf(MSG_DEBUG, "nl80211: FT event target_ap " MACSTR, 1966 MAC2STR(data.ft_ies.target_ap)); 1967 1968 wpa_supplicant_event(drv->ctx, EVENT_FT_RESPONSE, &data); 1969} 1970 1971 1972static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted, 1973 struct nlattr *tb[]) 1974{ 1975 union wpa_event_data event; 1976 struct nlattr *nl; 1977 int rem; 1978 struct scan_info *info; 1979#define MAX_REPORT_FREQS 50 1980 int freqs[MAX_REPORT_FREQS]; 1981 int num_freqs = 0; 1982 1983 if (drv->scan_for_auth) { 1984 drv->scan_for_auth = 0; 1985 wpa_printf(MSG_DEBUG, "nl80211: Scan results for missing " 1986 "cfg80211 BSS entry"); 1987 wpa_driver_nl80211_authenticate_retry(drv); 1988 return; 1989 } 1990 1991 os_memset(&event, 0, sizeof(event)); 1992 info = &event.scan_info; 1993 info->aborted = aborted; 1994 1995 if (tb[NL80211_ATTR_SCAN_SSIDS]) { 1996 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) { 1997 struct wpa_driver_scan_ssid *s = 1998 &info->ssids[info->num_ssids]; 1999 s->ssid = nla_data(nl); 2000 s->ssid_len = nla_len(nl); 2001 info->num_ssids++; 2002 if (info->num_ssids == WPAS_MAX_SCAN_SSIDS) 2003 break; 2004 } 2005 } 2006 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) { 2007 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem) 2008 { 2009 freqs[num_freqs] = nla_get_u32(nl); 2010 num_freqs++; 2011 if (num_freqs == MAX_REPORT_FREQS - 1) 2012 break; 2013 } 2014 info->freqs = freqs; 2015 info->num_freqs = num_freqs; 2016 } 2017 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event); 2018} 2019 2020 2021static int get_link_signal(struct nl_msg *msg, void *arg) 2022{ 2023 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2024 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2025 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1]; 2026 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = { 2027 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 }, 2028 [NL80211_STA_INFO_SIGNAL_AVG] = { .type = NLA_U8 }, 2029 }; 2030 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1]; 2031 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = { 2032 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 }, 2033 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 }, 2034 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG }, 2035 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG }, 2036 }; 2037 struct wpa_signal_info *sig_change = arg; 2038 2039 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2040 genlmsg_attrlen(gnlh, 0), NULL); 2041 if (!tb[NL80211_ATTR_STA_INFO] || 2042 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX, 2043 tb[NL80211_ATTR_STA_INFO], policy)) 2044 return NL_SKIP; 2045 if (!sinfo[NL80211_STA_INFO_SIGNAL]) 2046 return NL_SKIP; 2047 2048 sig_change->current_signal = 2049 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]); 2050 2051 if (sinfo[NL80211_STA_INFO_SIGNAL_AVG]) 2052 sig_change->avg_signal = 2053 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL_AVG]); 2054 else 2055 sig_change->avg_signal = 0; 2056 2057 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) { 2058 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX, 2059 sinfo[NL80211_STA_INFO_TX_BITRATE], 2060 rate_policy)) { 2061 sig_change->current_txrate = 0; 2062 } else { 2063 if (rinfo[NL80211_RATE_INFO_BITRATE]) { 2064 sig_change->current_txrate = 2065 nla_get_u16(rinfo[ 2066 NL80211_RATE_INFO_BITRATE]) * 100; 2067 } 2068 } 2069 } 2070 2071 return NL_SKIP; 2072} 2073 2074 2075static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv, 2076 struct wpa_signal_info *sig) 2077{ 2078 struct nl_msg *msg; 2079 2080 sig->current_signal = -9999; 2081 sig->current_txrate = 0; 2082 2083 msg = nlmsg_alloc(); 2084 if (!msg) 2085 return -ENOMEM; 2086 2087 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 2088 2089 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2090 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 2091 2092 return send_and_recv_msgs(drv, msg, get_link_signal, sig); 2093 nla_put_failure: 2094 nlmsg_free(msg); 2095 return -ENOBUFS; 2096} 2097 2098 2099static int get_link_noise(struct nl_msg *msg, void *arg) 2100{ 2101 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2102 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2103 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 2104 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 2105 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 2106 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 2107 }; 2108 struct wpa_signal_info *sig_change = arg; 2109 2110 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2111 genlmsg_attrlen(gnlh, 0), NULL); 2112 2113 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 2114 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!"); 2115 return NL_SKIP; 2116 } 2117 2118 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 2119 tb[NL80211_ATTR_SURVEY_INFO], 2120 survey_policy)) { 2121 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested " 2122 "attributes!"); 2123 return NL_SKIP; 2124 } 2125 2126 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 2127 return NL_SKIP; 2128 2129 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 2130 sig_change->frequency) 2131 return NL_SKIP; 2132 2133 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 2134 return NL_SKIP; 2135 2136 sig_change->current_noise = 2137 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 2138 2139 return NL_SKIP; 2140} 2141 2142 2143static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv, 2144 struct wpa_signal_info *sig_change) 2145{ 2146 struct nl_msg *msg; 2147 2148 sig_change->current_noise = 9999; 2149 sig_change->frequency = drv->assoc_freq; 2150 2151 msg = nlmsg_alloc(); 2152 if (!msg) 2153 return -ENOMEM; 2154 2155 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 2156 2157 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2158 2159 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change); 2160 nla_put_failure: 2161 nlmsg_free(msg); 2162 return -ENOBUFS; 2163} 2164 2165 2166static int get_noise_for_scan_results(struct nl_msg *msg, void *arg) 2167{ 2168 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2169 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2170 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 2171 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 2172 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 2173 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 2174 }; 2175 struct wpa_scan_results *scan_results = arg; 2176 struct wpa_scan_res *scan_res; 2177 size_t i; 2178 2179 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2180 genlmsg_attrlen(gnlh, 0), NULL); 2181 2182 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 2183 wpa_printf(MSG_DEBUG, "nl80211: Survey data missing"); 2184 return NL_SKIP; 2185 } 2186 2187 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 2188 tb[NL80211_ATTR_SURVEY_INFO], 2189 survey_policy)) { 2190 wpa_printf(MSG_DEBUG, "nl80211: Failed to parse nested " 2191 "attributes"); 2192 return NL_SKIP; 2193 } 2194 2195 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 2196 return NL_SKIP; 2197 2198 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 2199 return NL_SKIP; 2200 2201 for (i = 0; i < scan_results->num; ++i) { 2202 scan_res = scan_results->res[i]; 2203 if (!scan_res) 2204 continue; 2205 if ((int) nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 2206 scan_res->freq) 2207 continue; 2208 if (!(scan_res->flags & WPA_SCAN_NOISE_INVALID)) 2209 continue; 2210 scan_res->noise = (s8) 2211 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 2212 scan_res->flags &= ~WPA_SCAN_NOISE_INVALID; 2213 } 2214 2215 return NL_SKIP; 2216} 2217 2218 2219static int nl80211_get_noise_for_scan_results( 2220 struct wpa_driver_nl80211_data *drv, 2221 struct wpa_scan_results *scan_res) 2222{ 2223 struct nl_msg *msg; 2224 2225 msg = nlmsg_alloc(); 2226 if (!msg) 2227 return -ENOMEM; 2228 2229 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 2230 2231 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2232 2233 return send_and_recv_msgs(drv, msg, get_noise_for_scan_results, 2234 scan_res); 2235 nla_put_failure: 2236 nlmsg_free(msg); 2237 return -ENOBUFS; 2238} 2239 2240 2241static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv, 2242 struct nlattr *tb[]) 2243{ 2244 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = { 2245 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, 2246 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 }, 2247 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, 2248 [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 }, 2249 }; 2250 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1]; 2251 enum nl80211_cqm_rssi_threshold_event event; 2252 union wpa_event_data ed; 2253 struct wpa_signal_info sig; 2254 int res; 2255 2256 if (tb[NL80211_ATTR_CQM] == NULL || 2257 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM], 2258 cqm_policy)) { 2259 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event"); 2260 return; 2261 } 2262 2263 os_memset(&ed, 0, sizeof(ed)); 2264 2265 if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) { 2266 if (!tb[NL80211_ATTR_MAC]) 2267 return; 2268 os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]), 2269 ETH_ALEN); 2270 wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed); 2271 return; 2272 } 2273 2274 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL) 2275 return; 2276 event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]); 2277 2278 if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) { 2279 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 2280 "event: RSSI high"); 2281 ed.signal_change.above_threshold = 1; 2282 } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) { 2283 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 2284 "event: RSSI low"); 2285 ed.signal_change.above_threshold = 0; 2286 } else 2287 return; 2288 2289 res = nl80211_get_link_signal(drv, &sig); 2290 if (res == 0) { 2291 ed.signal_change.current_signal = sig.current_signal; 2292 ed.signal_change.current_txrate = sig.current_txrate; 2293 wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d", 2294 sig.current_signal, sig.current_txrate); 2295 } 2296 2297 res = nl80211_get_link_noise(drv, &sig); 2298 if (res == 0) { 2299 ed.signal_change.current_noise = sig.current_noise; 2300 wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm", 2301 sig.current_noise); 2302 } 2303 2304 wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed); 2305} 2306 2307 2308static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv, 2309 struct nlattr **tb) 2310{ 2311 u8 *addr; 2312 union wpa_event_data data; 2313 2314 if (tb[NL80211_ATTR_MAC] == NULL) 2315 return; 2316 addr = nla_data(tb[NL80211_ATTR_MAC]); 2317 wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr)); 2318 2319 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2320 u8 *ies = NULL; 2321 size_t ies_len = 0; 2322 if (tb[NL80211_ATTR_IE]) { 2323 ies = nla_data(tb[NL80211_ATTR_IE]); 2324 ies_len = nla_len(tb[NL80211_ATTR_IE]); 2325 } 2326 wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len); 2327 drv_event_assoc(drv->ctx, addr, ies, ies_len, 0); 2328 return; 2329 } 2330 2331 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2332 return; 2333 2334 os_memset(&data, 0, sizeof(data)); 2335 os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN); 2336 wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data); 2337} 2338 2339 2340static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv, 2341 struct nlattr **tb) 2342{ 2343 u8 *addr; 2344 union wpa_event_data data; 2345 2346 if (tb[NL80211_ATTR_MAC] == NULL) 2347 return; 2348 addr = nla_data(tb[NL80211_ATTR_MAC]); 2349 wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR, 2350 MAC2STR(addr)); 2351 2352 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2353 drv_event_disassoc(drv->ctx, addr); 2354 return; 2355 } 2356 2357 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2358 return; 2359 2360 os_memset(&data, 0, sizeof(data)); 2361 os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN); 2362 wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data); 2363} 2364 2365 2366static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv, 2367 struct nlattr **tb) 2368{ 2369 struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA]; 2370 static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = { 2371 [NL80211_REKEY_DATA_KEK] = { 2372 .minlen = NL80211_KEK_LEN, 2373 .maxlen = NL80211_KEK_LEN, 2374 }, 2375 [NL80211_REKEY_DATA_KCK] = { 2376 .minlen = NL80211_KCK_LEN, 2377 .maxlen = NL80211_KCK_LEN, 2378 }, 2379 [NL80211_REKEY_DATA_REPLAY_CTR] = { 2380 .minlen = NL80211_REPLAY_CTR_LEN, 2381 .maxlen = NL80211_REPLAY_CTR_LEN, 2382 }, 2383 }; 2384 union wpa_event_data data; 2385 2386 if (!tb[NL80211_ATTR_MAC]) 2387 return; 2388 if (!tb[NL80211_ATTR_REKEY_DATA]) 2389 return; 2390 if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA, 2391 tb[NL80211_ATTR_REKEY_DATA], rekey_policy)) 2392 return; 2393 if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]) 2394 return; 2395 2396 os_memset(&data, 0, sizeof(data)); 2397 data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]); 2398 wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR, 2399 MAC2STR(data.driver_gtk_rekey.bssid)); 2400 data.driver_gtk_rekey.replay_ctr = 2401 nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]); 2402 wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter", 2403 data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN); 2404 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data); 2405} 2406 2407 2408static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv, 2409 struct nlattr **tb) 2410{ 2411 struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE]; 2412 static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = { 2413 [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 }, 2414 [NL80211_PMKSA_CANDIDATE_BSSID] = { 2415 .minlen = ETH_ALEN, 2416 .maxlen = ETH_ALEN, 2417 }, 2418 [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG }, 2419 }; 2420 union wpa_event_data data; 2421 2422 wpa_printf(MSG_DEBUG, "nl80211: PMKSA candidate event"); 2423 2424 if (!tb[NL80211_ATTR_PMKSA_CANDIDATE]) 2425 return; 2426 if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE, 2427 tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy)) 2428 return; 2429 if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] || 2430 !cand[NL80211_PMKSA_CANDIDATE_BSSID]) 2431 return; 2432 2433 os_memset(&data, 0, sizeof(data)); 2434 os_memcpy(data.pmkid_candidate.bssid, 2435 nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN); 2436 data.pmkid_candidate.index = 2437 nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]); 2438 data.pmkid_candidate.preauth = 2439 cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL; 2440 wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data); 2441} 2442 2443 2444static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv, 2445 struct nlattr **tb) 2446{ 2447 union wpa_event_data data; 2448 2449 wpa_printf(MSG_DEBUG, "nl80211: Probe client event"); 2450 2451 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_ACK]) 2452 return; 2453 2454 os_memset(&data, 0, sizeof(data)); 2455 os_memcpy(data.client_poll.addr, 2456 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2457 2458 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_CLIENT_POLL_OK, &data); 2459} 2460 2461 2462static void nl80211_tdls_oper_event(struct wpa_driver_nl80211_data *drv, 2463 struct nlattr **tb) 2464{ 2465 union wpa_event_data data; 2466 2467 wpa_printf(MSG_DEBUG, "nl80211: TDLS operation event"); 2468 2469 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_TDLS_OPERATION]) 2470 return; 2471 2472 os_memset(&data, 0, sizeof(data)); 2473 os_memcpy(data.tdls.peer, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2474 switch (nla_get_u8(tb[NL80211_ATTR_TDLS_OPERATION])) { 2475 case NL80211_TDLS_SETUP: 2476 wpa_printf(MSG_DEBUG, "nl80211: TDLS setup request for peer " 2477 MACSTR, MAC2STR(data.tdls.peer)); 2478 data.tdls.oper = TDLS_REQUEST_SETUP; 2479 break; 2480 case NL80211_TDLS_TEARDOWN: 2481 wpa_printf(MSG_DEBUG, "nl80211: TDLS teardown request for peer " 2482 MACSTR, MAC2STR(data.tdls.peer)); 2483 data.tdls.oper = TDLS_REQUEST_TEARDOWN; 2484 break; 2485 default: 2486 wpa_printf(MSG_DEBUG, "nl80211: Unsupported TDLS operatione " 2487 "event"); 2488 return; 2489 } 2490 if (tb[NL80211_ATTR_REASON_CODE]) { 2491 data.tdls.reason_code = 2492 nla_get_u16(tb[NL80211_ATTR_REASON_CODE]); 2493 } 2494 2495 wpa_supplicant_event(drv->ctx, EVENT_TDLS, &data); 2496} 2497 2498 2499static void nl80211_stop_ap(struct wpa_driver_nl80211_data *drv, 2500 struct nlattr **tb) 2501{ 2502 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_UNAVAILABLE, NULL); 2503} 2504 2505 2506static void nl80211_connect_failed_event(struct wpa_driver_nl80211_data *drv, 2507 struct nlattr **tb) 2508{ 2509 union wpa_event_data data; 2510 u32 reason; 2511 2512 wpa_printf(MSG_DEBUG, "nl80211: Connect failed event"); 2513 2514 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_CONN_FAILED_REASON]) 2515 return; 2516 2517 os_memset(&data, 0, sizeof(data)); 2518 os_memcpy(data.connect_failed_reason.addr, 2519 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2520 2521 reason = nla_get_u32(tb[NL80211_ATTR_CONN_FAILED_REASON]); 2522 switch (reason) { 2523 case NL80211_CONN_FAIL_MAX_CLIENTS: 2524 wpa_printf(MSG_DEBUG, "nl80211: Max client reached"); 2525 data.connect_failed_reason.code = MAX_CLIENT_REACHED; 2526 break; 2527 case NL80211_CONN_FAIL_BLOCKED_CLIENT: 2528 wpa_printf(MSG_DEBUG, "nl80211: Blocked client " MACSTR 2529 " tried to connect", 2530 MAC2STR(data.connect_failed_reason.addr)); 2531 data.connect_failed_reason.code = BLOCKED_CLIENT; 2532 break; 2533 default: 2534 wpa_printf(MSG_DEBUG, "nl8021l: Unknown connect failed reason " 2535 "%u", reason); 2536 return; 2537 } 2538 2539 wpa_supplicant_event(drv->ctx, EVENT_CONNECT_FAILED_REASON, &data); 2540} 2541 2542 2543static enum chan_width convert2width(int width); 2544 2545static void nl80211_radar_event(struct wpa_driver_nl80211_data *drv, 2546 struct nlattr **tb) 2547{ 2548 union wpa_event_data data; 2549 enum nl80211_radar_event event_type; 2550 2551 if (!tb[NL80211_ATTR_WIPHY_FREQ] || !tb[NL80211_ATTR_RADAR_EVENT]) 2552 return; 2553 2554 os_memset(&data, 0, sizeof(data)); 2555 data.dfs_event.freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); 2556 event_type = nla_get_u32(tb[NL80211_ATTR_RADAR_EVENT]); 2557 2558 /* Check HT params */ 2559 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { 2560 data.dfs_event.ht_enabled = 1; 2561 data.dfs_event.chan_offset = 0; 2562 2563 switch (nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])) { 2564 case NL80211_CHAN_NO_HT: 2565 data.dfs_event.ht_enabled = 0; 2566 break; 2567 case NL80211_CHAN_HT20: 2568 break; 2569 case NL80211_CHAN_HT40PLUS: 2570 data.dfs_event.chan_offset = 1; 2571 break; 2572 case NL80211_CHAN_HT40MINUS: 2573 data.dfs_event.chan_offset = -1; 2574 break; 2575 } 2576 } 2577 2578 /* Get VHT params */ 2579 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) 2580 data.dfs_event.chan_width = 2581 convert2width(nla_get_u32( 2582 tb[NL80211_ATTR_CHANNEL_WIDTH])); 2583 if (tb[NL80211_ATTR_CENTER_FREQ1]) 2584 data.dfs_event.cf1 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); 2585 if (tb[NL80211_ATTR_CENTER_FREQ2]) 2586 data.dfs_event.cf2 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); 2587 2588 wpa_printf(MSG_DEBUG, "nl80211: DFS event on freq %d MHz, ht: %d, offset: %d, width: %d, cf1: %dMHz, cf2: %dMHz", 2589 data.dfs_event.freq, data.dfs_event.ht_enabled, 2590 data.dfs_event.chan_offset, data.dfs_event.chan_width, 2591 data.dfs_event.cf1, data.dfs_event.cf2); 2592 2593 switch (event_type) { 2594 case NL80211_RADAR_DETECTED: 2595 wpa_supplicant_event(drv->ctx, EVENT_DFS_RADAR_DETECTED, &data); 2596 break; 2597 case NL80211_RADAR_CAC_FINISHED: 2598 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_FINISHED, &data); 2599 break; 2600 case NL80211_RADAR_CAC_ABORTED: 2601 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_ABORTED, &data); 2602 break; 2603 case NL80211_RADAR_NOP_FINISHED: 2604 wpa_supplicant_event(drv->ctx, EVENT_DFS_NOP_FINISHED, &data); 2605 break; 2606 default: 2607 wpa_printf(MSG_DEBUG, "nl80211: Unknown radar event %d " 2608 "received", event_type); 2609 break; 2610 } 2611} 2612 2613 2614static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb, 2615 int wds) 2616{ 2617 struct wpa_driver_nl80211_data *drv = bss->drv; 2618 union wpa_event_data event; 2619 2620 if (!tb[NL80211_ATTR_MAC]) 2621 return; 2622 2623 os_memset(&event, 0, sizeof(event)); 2624 event.rx_from_unknown.bssid = bss->addr; 2625 event.rx_from_unknown.addr = nla_data(tb[NL80211_ATTR_MAC]); 2626 event.rx_from_unknown.wds = wds; 2627 2628 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 2629} 2630 2631 2632static void do_process_drv_event(struct i802_bss *bss, int cmd, 2633 struct nlattr **tb) 2634{ 2635 struct wpa_driver_nl80211_data *drv = bss->drv; 2636 2637 wpa_printf(MSG_DEBUG, "nl80211: Drv Event %d (%s) received for %s", 2638 cmd, nl80211_command_to_string(cmd), bss->ifname); 2639 2640 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED && 2641 (cmd == NL80211_CMD_NEW_SCAN_RESULTS || 2642 cmd == NL80211_CMD_SCAN_ABORTED)) { 2643 wpa_driver_nl80211_set_mode(drv->first_bss, 2644 drv->ap_scan_as_station); 2645 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 2646 } 2647 2648 switch (cmd) { 2649 case NL80211_CMD_TRIGGER_SCAN: 2650 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan trigger"); 2651 drv->scan_state = SCAN_STARTED; 2652 break; 2653 case NL80211_CMD_START_SCHED_SCAN: 2654 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan started"); 2655 drv->scan_state = SCHED_SCAN_STARTED; 2656 break; 2657 case NL80211_CMD_SCHED_SCAN_STOPPED: 2658 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan stopped"); 2659 drv->scan_state = SCHED_SCAN_STOPPED; 2660 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL); 2661 break; 2662 case NL80211_CMD_NEW_SCAN_RESULTS: 2663 wpa_dbg(drv->ctx, MSG_DEBUG, 2664 "nl80211: New scan results available"); 2665 drv->scan_state = SCAN_COMPLETED; 2666 drv->scan_complete_events = 1; 2667 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 2668 drv->ctx); 2669 send_scan_event(drv, 0, tb); 2670 break; 2671 case NL80211_CMD_SCHED_SCAN_RESULTS: 2672 wpa_dbg(drv->ctx, MSG_DEBUG, 2673 "nl80211: New sched scan results available"); 2674 drv->scan_state = SCHED_SCAN_RESULTS; 2675 send_scan_event(drv, 0, tb); 2676 break; 2677 case NL80211_CMD_SCAN_ABORTED: 2678 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan aborted"); 2679 drv->scan_state = SCAN_ABORTED; 2680 /* 2681 * Need to indicate that scan results are available in order 2682 * not to make wpa_supplicant stop its scanning. 2683 */ 2684 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 2685 drv->ctx); 2686 send_scan_event(drv, 1, tb); 2687 break; 2688 case NL80211_CMD_AUTHENTICATE: 2689 case NL80211_CMD_ASSOCIATE: 2690 case NL80211_CMD_DEAUTHENTICATE: 2691 case NL80211_CMD_DISASSOCIATE: 2692 case NL80211_CMD_FRAME_TX_STATUS: 2693 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 2694 case NL80211_CMD_UNPROT_DISASSOCIATE: 2695 mlme_event(bss, cmd, tb[NL80211_ATTR_FRAME], 2696 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 2697 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 2698 tb[NL80211_ATTR_COOKIE], 2699 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 2700 break; 2701 case NL80211_CMD_CONNECT: 2702 case NL80211_CMD_ROAM: 2703 mlme_event_connect(drv, cmd, 2704 tb[NL80211_ATTR_STATUS_CODE], 2705 tb[NL80211_ATTR_MAC], 2706 tb[NL80211_ATTR_REQ_IE], 2707 tb[NL80211_ATTR_RESP_IE]); 2708 break; 2709 case NL80211_CMD_CH_SWITCH_NOTIFY: 2710 mlme_event_ch_switch(drv, tb[NL80211_ATTR_WIPHY_FREQ], 2711 tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); 2712 break; 2713 case NL80211_CMD_DISCONNECT: 2714 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE], 2715 tb[NL80211_ATTR_MAC], 2716 tb[NL80211_ATTR_DISCONNECTED_BY_AP]); 2717 break; 2718 case NL80211_CMD_MICHAEL_MIC_FAILURE: 2719 mlme_event_michael_mic_failure(bss, tb); 2720 break; 2721 case NL80211_CMD_JOIN_IBSS: 2722 mlme_event_join_ibss(drv, tb); 2723 break; 2724 case NL80211_CMD_REMAIN_ON_CHANNEL: 2725 mlme_event_remain_on_channel(drv, 0, tb); 2726 break; 2727 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL: 2728 mlme_event_remain_on_channel(drv, 1, tb); 2729 break; 2730 case NL80211_CMD_NOTIFY_CQM: 2731 nl80211_cqm_event(drv, tb); 2732 break; 2733 case NL80211_CMD_REG_CHANGE: 2734 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change"); 2735 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 2736 NULL); 2737 break; 2738 case NL80211_CMD_REG_BEACON_HINT: 2739 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint"); 2740 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 2741 NULL); 2742 break; 2743 case NL80211_CMD_NEW_STATION: 2744 nl80211_new_station_event(drv, tb); 2745 break; 2746 case NL80211_CMD_DEL_STATION: 2747 nl80211_del_station_event(drv, tb); 2748 break; 2749 case NL80211_CMD_SET_REKEY_OFFLOAD: 2750 nl80211_rekey_offload_event(drv, tb); 2751 break; 2752 case NL80211_CMD_PMKSA_CANDIDATE: 2753 nl80211_pmksa_candidate_event(drv, tb); 2754 break; 2755 case NL80211_CMD_PROBE_CLIENT: 2756 nl80211_client_probe_event(drv, tb); 2757 break; 2758 case NL80211_CMD_TDLS_OPER: 2759 nl80211_tdls_oper_event(drv, tb); 2760 break; 2761 case NL80211_CMD_CONN_FAILED: 2762 nl80211_connect_failed_event(drv, tb); 2763 break; 2764 case NL80211_CMD_FT_EVENT: 2765 mlme_event_ft_event(drv, tb); 2766 break; 2767 case NL80211_CMD_RADAR_DETECT: 2768 nl80211_radar_event(drv, tb); 2769 break; 2770 case NL80211_CMD_STOP_AP: 2771 nl80211_stop_ap(drv, tb); 2772 break; 2773 default: 2774 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Ignored unknown event " 2775 "(cmd=%d)", cmd); 2776 break; 2777 } 2778} 2779 2780 2781static int process_drv_event(struct nl_msg *msg, void *arg) 2782{ 2783 struct wpa_driver_nl80211_data *drv = arg; 2784 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2785 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2786 struct i802_bss *bss; 2787 int ifidx = -1; 2788 2789 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2790 genlmsg_attrlen(gnlh, 0), NULL); 2791 2792 if (tb[NL80211_ATTR_IFINDEX]) { 2793 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 2794 2795 for (bss = drv->first_bss; bss; bss = bss->next) 2796 if (ifidx == -1 || ifidx == bss->ifindex) { 2797 do_process_drv_event(bss, gnlh->cmd, tb); 2798 return NL_SKIP; 2799 } 2800 wpa_printf(MSG_DEBUG, 2801 "nl80211: Ignored event (cmd=%d) for foreign interface (ifindex %d)", 2802 gnlh->cmd, ifidx); 2803 } else if (tb[NL80211_ATTR_WDEV]) { 2804 u64 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 2805 wpa_printf(MSG_DEBUG, "nl80211: Process event on P2P device"); 2806 for (bss = drv->first_bss; bss; bss = bss->next) { 2807 if (bss->wdev_id_set && wdev_id == bss->wdev_id) { 2808 do_process_drv_event(bss, gnlh->cmd, tb); 2809 return NL_SKIP; 2810 } 2811 } 2812 wpa_printf(MSG_DEBUG, 2813 "nl80211: Ignored event (cmd=%d) for foreign interface (wdev 0x%llx)", 2814 gnlh->cmd, (long long unsigned int) wdev_id); 2815 } 2816 2817 return NL_SKIP; 2818} 2819 2820 2821static int process_global_event(struct nl_msg *msg, void *arg) 2822{ 2823 struct nl80211_global *global = arg; 2824 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2825 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2826 struct wpa_driver_nl80211_data *drv, *tmp; 2827 int ifidx = -1; 2828 struct i802_bss *bss; 2829 u64 wdev_id = 0; 2830 int wdev_id_set = 0; 2831 2832 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2833 genlmsg_attrlen(gnlh, 0), NULL); 2834 2835 if (tb[NL80211_ATTR_IFINDEX]) 2836 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 2837 else if (tb[NL80211_ATTR_WDEV]) { 2838 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 2839 wdev_id_set = 1; 2840 } 2841 2842 dl_list_for_each_safe(drv, tmp, &global->interfaces, 2843 struct wpa_driver_nl80211_data, list) { 2844 for (bss = drv->first_bss; bss; bss = bss->next) { 2845 if ((ifidx == -1 && !wdev_id_set) || 2846 ifidx == bss->ifindex || 2847 (wdev_id_set && bss->wdev_id_set && 2848 wdev_id == bss->wdev_id)) { 2849 do_process_drv_event(bss, gnlh->cmd, tb); 2850 return NL_SKIP; 2851 } 2852 } 2853 } 2854 2855 return NL_SKIP; 2856} 2857 2858 2859static int process_bss_event(struct nl_msg *msg, void *arg) 2860{ 2861 struct i802_bss *bss = arg; 2862 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2863 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2864 2865 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2866 genlmsg_attrlen(gnlh, 0), NULL); 2867 2868 wpa_printf(MSG_DEBUG, "nl80211: BSS Event %d (%s) received for %s", 2869 gnlh->cmd, nl80211_command_to_string(gnlh->cmd), 2870 bss->ifname); 2871 2872 switch (gnlh->cmd) { 2873 case NL80211_CMD_FRAME: 2874 case NL80211_CMD_FRAME_TX_STATUS: 2875 mlme_event(bss, gnlh->cmd, tb[NL80211_ATTR_FRAME], 2876 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 2877 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 2878 tb[NL80211_ATTR_COOKIE], 2879 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 2880 break; 2881 case NL80211_CMD_UNEXPECTED_FRAME: 2882 nl80211_spurious_frame(bss, tb, 0); 2883 break; 2884 case NL80211_CMD_UNEXPECTED_4ADDR_FRAME: 2885 nl80211_spurious_frame(bss, tb, 1); 2886 break; 2887 default: 2888 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event " 2889 "(cmd=%d)", gnlh->cmd); 2890 break; 2891 } 2892 2893 return NL_SKIP; 2894} 2895 2896 2897static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx, 2898 void *handle) 2899{ 2900 struct nl_cb *cb = eloop_ctx; 2901 int res; 2902 2903 wpa_printf(MSG_MSGDUMP, "nl80211: Event message available"); 2904 2905 res = nl_recvmsgs(handle, cb); 2906 if (res) { 2907 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d", 2908 __func__, res); 2909 } 2910} 2911 2912 2913/** 2914 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain 2915 * @priv: driver_nl80211 private data 2916 * @alpha2_arg: country to which to switch to 2917 * Returns: 0 on success, -1 on failure 2918 * 2919 * This asks nl80211 to set the regulatory domain for given 2920 * country ISO / IEC alpha2. 2921 */ 2922static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg) 2923{ 2924 struct i802_bss *bss = priv; 2925 struct wpa_driver_nl80211_data *drv = bss->drv; 2926 char alpha2[3]; 2927 struct nl_msg *msg; 2928 2929 msg = nlmsg_alloc(); 2930 if (!msg) 2931 return -ENOMEM; 2932 2933 alpha2[0] = alpha2_arg[0]; 2934 alpha2[1] = alpha2_arg[1]; 2935 alpha2[2] = '\0'; 2936 2937 nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG); 2938 2939 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2); 2940 if (send_and_recv_msgs(drv, msg, NULL, NULL)) 2941 return -EINVAL; 2942 return 0; 2943nla_put_failure: 2944 nlmsg_free(msg); 2945 return -EINVAL; 2946} 2947 2948 2949static int nl80211_get_country(struct nl_msg *msg, void *arg) 2950{ 2951 char *alpha2 = arg; 2952 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 2953 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2954 2955 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2956 genlmsg_attrlen(gnlh, 0), NULL); 2957 if (!tb_msg[NL80211_ATTR_REG_ALPHA2]) { 2958 wpa_printf(MSG_DEBUG, "nl80211: No country information available"); 2959 return NL_SKIP; 2960 } 2961 os_strlcpy(alpha2, nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]), 3); 2962 return NL_SKIP; 2963} 2964 2965 2966static int wpa_driver_nl80211_get_country(void *priv, char *alpha2) 2967{ 2968 struct i802_bss *bss = priv; 2969 struct wpa_driver_nl80211_data *drv = bss->drv; 2970 struct nl_msg *msg; 2971 int ret; 2972 2973 msg = nlmsg_alloc(); 2974 if (!msg) 2975 return -ENOMEM; 2976 2977 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 2978 alpha2[0] = '\0'; 2979 ret = send_and_recv_msgs(drv, msg, nl80211_get_country, alpha2); 2980 if (!alpha2[0]) 2981 ret = -1; 2982 2983 return ret; 2984} 2985 2986 2987static int protocol_feature_handler(struct nl_msg *msg, void *arg) 2988{ 2989 u32 *feat = arg; 2990 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 2991 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2992 2993 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2994 genlmsg_attrlen(gnlh, 0), NULL); 2995 2996 if (tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]) 2997 *feat = nla_get_u32(tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]); 2998 2999 return NL_SKIP; 3000} 3001 3002 3003static u32 get_nl80211_protocol_features(struct wpa_driver_nl80211_data *drv) 3004{ 3005 u32 feat = 0; 3006 struct nl_msg *msg; 3007 3008 msg = nlmsg_alloc(); 3009 if (!msg) 3010 goto nla_put_failure; 3011 3012 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_PROTOCOL_FEATURES); 3013 if (send_and_recv_msgs(drv, msg, protocol_feature_handler, &feat) == 0) 3014 return feat; 3015 3016 msg = NULL; 3017nla_put_failure: 3018 nlmsg_free(msg); 3019 return 0; 3020} 3021 3022 3023struct wiphy_info_data { 3024 struct wpa_driver_nl80211_data *drv; 3025 struct wpa_driver_capa *capa; 3026 3027 unsigned int num_multichan_concurrent; 3028 3029 unsigned int error:1; 3030 unsigned int device_ap_sme:1; 3031 unsigned int poll_command_supported:1; 3032 unsigned int data_tx_status:1; 3033 unsigned int monitor_supported:1; 3034 unsigned int auth_supported:1; 3035 unsigned int connect_supported:1; 3036 unsigned int p2p_go_supported:1; 3037 unsigned int p2p_client_supported:1; 3038 unsigned int p2p_concurrent:1; 3039}; 3040 3041 3042static unsigned int probe_resp_offload_support(int supp_protocols) 3043{ 3044 unsigned int prot = 0; 3045 3046 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS) 3047 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS; 3048 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2) 3049 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2; 3050 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P) 3051 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P; 3052 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U) 3053 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING; 3054 3055 return prot; 3056} 3057 3058 3059static void wiphy_info_supported_iftypes(struct wiphy_info_data *info, 3060 struct nlattr *tb) 3061{ 3062 struct nlattr *nl_mode; 3063 int i; 3064 3065 if (tb == NULL) 3066 return; 3067 3068 nla_for_each_nested(nl_mode, tb, i) { 3069 switch (nla_type(nl_mode)) { 3070 case NL80211_IFTYPE_AP: 3071 info->capa->flags |= WPA_DRIVER_FLAGS_AP; 3072 break; 3073 case NL80211_IFTYPE_ADHOC: 3074 info->capa->flags |= WPA_DRIVER_FLAGS_IBSS; 3075 break; 3076 case NL80211_IFTYPE_P2P_DEVICE: 3077 info->capa->flags |= 3078 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 3079 break; 3080 case NL80211_IFTYPE_P2P_GO: 3081 info->p2p_go_supported = 1; 3082 break; 3083 case NL80211_IFTYPE_P2P_CLIENT: 3084 info->p2p_client_supported = 1; 3085 break; 3086 case NL80211_IFTYPE_MONITOR: 3087 info->monitor_supported = 1; 3088 break; 3089 } 3090 } 3091} 3092 3093 3094static int wiphy_info_iface_comb_process(struct wiphy_info_data *info, 3095 struct nlattr *nl_combi) 3096{ 3097 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB]; 3098 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT]; 3099 struct nlattr *nl_limit, *nl_mode; 3100 int err, rem_limit, rem_mode; 3101 int combination_has_p2p = 0, combination_has_mgd = 0; 3102 static struct nla_policy 3103 iface_combination_policy[NUM_NL80211_IFACE_COMB] = { 3104 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED }, 3105 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 }, 3106 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG }, 3107 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 }, 3108 [NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 }, 3109 }, 3110 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = { 3111 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED }, 3112 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 }, 3113 }; 3114 3115 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB, 3116 nl_combi, iface_combination_policy); 3117 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] || 3118 !tb_comb[NL80211_IFACE_COMB_MAXNUM] || 3119 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) 3120 return 0; /* broken combination */ 3121 3122 if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS]) 3123 info->capa->flags |= WPA_DRIVER_FLAGS_RADAR; 3124 3125 nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS], 3126 rem_limit) { 3127 err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT, 3128 nl_limit, iface_limit_policy); 3129 if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES]) 3130 return 0; /* broken combination */ 3131 3132 nla_for_each_nested(nl_mode, 3133 tb_limit[NL80211_IFACE_LIMIT_TYPES], 3134 rem_mode) { 3135 int ift = nla_type(nl_mode); 3136 if (ift == NL80211_IFTYPE_P2P_GO || 3137 ift == NL80211_IFTYPE_P2P_CLIENT) 3138 combination_has_p2p = 1; 3139 if (ift == NL80211_IFTYPE_STATION) 3140 combination_has_mgd = 1; 3141 } 3142 if (combination_has_p2p && combination_has_mgd) 3143 break; 3144 } 3145 3146 if (combination_has_p2p && combination_has_mgd) { 3147 info->p2p_concurrent = 1; 3148 info->num_multichan_concurrent = 3149 nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]); 3150 return 1; 3151 } 3152 3153 return 0; 3154} 3155 3156 3157static void wiphy_info_iface_comb(struct wiphy_info_data *info, 3158 struct nlattr *tb) 3159{ 3160 struct nlattr *nl_combi; 3161 int rem_combi; 3162 3163 if (tb == NULL) 3164 return; 3165 3166 nla_for_each_nested(nl_combi, tb, rem_combi) { 3167 if (wiphy_info_iface_comb_process(info, nl_combi) > 0) 3168 break; 3169 } 3170} 3171 3172 3173static void wiphy_info_supp_cmds(struct wiphy_info_data *info, 3174 struct nlattr *tb) 3175{ 3176 struct nlattr *nl_cmd; 3177 int i; 3178 3179 if (tb == NULL) 3180 return; 3181 3182 nla_for_each_nested(nl_cmd, tb, i) { 3183 switch (nla_get_u32(nl_cmd)) { 3184 case NL80211_CMD_AUTHENTICATE: 3185 info->auth_supported = 1; 3186 break; 3187 case NL80211_CMD_CONNECT: 3188 info->connect_supported = 1; 3189 break; 3190 case NL80211_CMD_START_SCHED_SCAN: 3191 info->capa->sched_scan_supported = 1; 3192 break; 3193 case NL80211_CMD_PROBE_CLIENT: 3194 info->poll_command_supported = 1; 3195 break; 3196 } 3197 } 3198} 3199 3200 3201static void wiphy_info_max_roc(struct wpa_driver_capa *capa, 3202 struct nlattr *tb) 3203{ 3204 if (tb) 3205 capa->max_remain_on_chan = nla_get_u32(tb); 3206} 3207 3208 3209static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls, 3210 struct nlattr *ext_setup) 3211{ 3212 if (tdls == NULL) 3213 return; 3214 3215 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported"); 3216 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT; 3217 3218 if (ext_setup) { 3219 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup"); 3220 capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP; 3221 } 3222} 3223 3224 3225static void wiphy_info_feature_flags(struct wiphy_info_data *info, 3226 struct nlattr *tb) 3227{ 3228 u32 flags; 3229 struct wpa_driver_capa *capa = info->capa; 3230 3231 if (tb == NULL) 3232 return; 3233 3234 flags = nla_get_u32(tb); 3235 3236 if (flags & NL80211_FEATURE_SK_TX_STATUS) 3237 info->data_tx_status = 1; 3238 3239 if (flags & NL80211_FEATURE_INACTIVITY_TIMER) 3240 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER; 3241 3242 if (flags & NL80211_FEATURE_SAE) 3243 capa->flags |= WPA_DRIVER_FLAGS_SAE; 3244 3245 if (flags & NL80211_FEATURE_NEED_OBSS_SCAN) 3246 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN; 3247} 3248 3249 3250static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa, 3251 struct nlattr *tb) 3252{ 3253 u32 protocols; 3254 3255 if (tb == NULL) 3256 return; 3257 3258 protocols = nla_get_u32(tb); 3259 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP " 3260 "mode"); 3261 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD; 3262 capa->probe_resp_offloads = probe_resp_offload_support(protocols); 3263} 3264 3265 3266static int wiphy_info_handler(struct nl_msg *msg, void *arg) 3267{ 3268 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3269 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3270 struct wiphy_info_data *info = arg; 3271 struct wpa_driver_capa *capa = info->capa; 3272 struct wpa_driver_nl80211_data *drv = info->drv; 3273 3274 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3275 genlmsg_attrlen(gnlh, 0), NULL); 3276 3277 if (tb[NL80211_ATTR_WIPHY_NAME]) 3278 os_strlcpy(drv->phyname, 3279 nla_get_string(tb[NL80211_ATTR_WIPHY_NAME]), 3280 sizeof(drv->phyname)); 3281 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]) 3282 capa->max_scan_ssids = 3283 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]); 3284 3285 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]) 3286 capa->max_sched_scan_ssids = 3287 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]); 3288 3289 if (tb[NL80211_ATTR_MAX_MATCH_SETS]) 3290 capa->max_match_sets = 3291 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]); 3292 3293 if (tb[NL80211_ATTR_MAC_ACL_MAX]) 3294 capa->max_acl_mac_addrs = 3295 nla_get_u8(tb[NL80211_ATTR_MAC_ACL_MAX]); 3296 3297 wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]); 3298 wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]); 3299 wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]); 3300 3301 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) { 3302 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based " 3303 "off-channel TX"); 3304 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX; 3305 } 3306 3307 if (tb[NL80211_ATTR_ROAM_SUPPORT]) { 3308 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming"); 3309 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION; 3310 } 3311 3312 wiphy_info_max_roc(capa, 3313 tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]); 3314 3315 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD]) 3316 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD; 3317 3318 wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT], 3319 tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]); 3320 3321 if (tb[NL80211_ATTR_DEVICE_AP_SME]) 3322 info->device_ap_sme = 1; 3323 3324 wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]); 3325 wiphy_info_probe_resp_offload(capa, 3326 tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]); 3327 3328 if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] && 3329 drv->extended_capa == NULL) { 3330 drv->extended_capa = 3331 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3332 if (drv->extended_capa) { 3333 os_memcpy(drv->extended_capa, 3334 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 3335 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3336 drv->extended_capa_len = 3337 nla_len(tb[NL80211_ATTR_EXT_CAPA]); 3338 } 3339 drv->extended_capa_mask = 3340 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3341 if (drv->extended_capa_mask) { 3342 os_memcpy(drv->extended_capa_mask, 3343 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 3344 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3345 } else { 3346 os_free(drv->extended_capa); 3347 drv->extended_capa = NULL; 3348 drv->extended_capa_len = 0; 3349 } 3350 } 3351 3352 return NL_SKIP; 3353} 3354 3355 3356static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv, 3357 struct wiphy_info_data *info) 3358{ 3359 u32 feat; 3360 struct nl_msg *msg; 3361 3362 os_memset(info, 0, sizeof(*info)); 3363 info->capa = &drv->capa; 3364 info->drv = drv; 3365 3366 msg = nlmsg_alloc(); 3367 if (!msg) 3368 return -1; 3369 3370 feat = get_nl80211_protocol_features(drv); 3371 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 3372 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 3373 else 3374 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 3375 3376 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 3377 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 3378 goto nla_put_failure; 3379 3380 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info)) 3381 return -1; 3382 3383 if (info->auth_supported) 3384 drv->capa.flags |= WPA_DRIVER_FLAGS_SME; 3385 else if (!info->connect_supported) { 3386 wpa_printf(MSG_INFO, "nl80211: Driver does not support " 3387 "authentication/association or connect commands"); 3388 info->error = 1; 3389 } 3390 3391 if (info->p2p_go_supported && info->p2p_client_supported) 3392 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE; 3393 if (info->p2p_concurrent) { 3394 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 3395 "interface (driver advertised support)"); 3396 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 3397 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 3398 } 3399 if (info->num_multichan_concurrent > 1) { 3400 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel " 3401 "concurrent (driver advertised support)"); 3402 drv->capa.num_multichan_concurrent = 3403 info->num_multichan_concurrent; 3404 } 3405 3406 /* default to 5000 since early versions of mac80211 don't set it */ 3407 if (!drv->capa.max_remain_on_chan) 3408 drv->capa.max_remain_on_chan = 5000; 3409 3410 return 0; 3411nla_put_failure: 3412 nlmsg_free(msg); 3413 return -1; 3414} 3415 3416 3417static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv) 3418{ 3419 struct wiphy_info_data info; 3420 if (wpa_driver_nl80211_get_info(drv, &info)) 3421 return -1; 3422 3423 if (info.error) 3424 return -1; 3425 3426 drv->has_capability = 1; 3427 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */ 3428 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA | 3429 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK | 3430 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 | 3431 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK; 3432 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 | 3433 WPA_DRIVER_CAPA_ENC_WEP104 | 3434 WPA_DRIVER_CAPA_ENC_TKIP | 3435 WPA_DRIVER_CAPA_ENC_CCMP; 3436 drv->capa.auth = WPA_DRIVER_AUTH_OPEN | 3437 WPA_DRIVER_AUTH_SHARED | 3438 WPA_DRIVER_AUTH_LEAP; 3439 3440 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES; 3441 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE; 3442 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3443 3444 if (!info.device_ap_sme) { 3445 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS; 3446 3447 /* 3448 * No AP SME is currently assumed to also indicate no AP MLME 3449 * in the driver/firmware. 3450 */ 3451 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME; 3452 } 3453 3454 drv->device_ap_sme = info.device_ap_sme; 3455 drv->poll_command_supported = info.poll_command_supported; 3456 drv->data_tx_status = info.data_tx_status; 3457 3458 /* 3459 * If poll command and tx status are supported, mac80211 is new enough 3460 * to have everything we need to not need monitor interfaces. 3461 */ 3462 drv->use_monitor = !info.poll_command_supported || !info.data_tx_status; 3463 3464 if (drv->device_ap_sme && drv->use_monitor) { 3465 /* 3466 * Non-mac80211 drivers may not support monitor interface. 3467 * Make sure we do not get stuck with incorrect capability here 3468 * by explicitly testing this. 3469 */ 3470 if (!info.monitor_supported) { 3471 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor " 3472 "with device_ap_sme since no monitor mode " 3473 "support detected"); 3474 drv->use_monitor = 0; 3475 } 3476 } 3477 3478 /* 3479 * If we aren't going to use monitor interfaces, but the 3480 * driver doesn't support data TX status, we won't get TX 3481 * status for EAPOL frames. 3482 */ 3483 if (!drv->use_monitor && !info.data_tx_status) 3484 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3485 3486 return 0; 3487} 3488 3489 3490#ifdef ANDROID 3491static int android_genl_ctrl_resolve(struct nl_handle *handle, 3492 const char *name) 3493{ 3494 /* 3495 * Android ICS has very minimal genl_ctrl_resolve() implementation, so 3496 * need to work around that. 3497 */ 3498 struct nl_cache *cache = NULL; 3499 struct genl_family *nl80211 = NULL; 3500 int id = -1; 3501 3502 if (genl_ctrl_alloc_cache(handle, &cache) < 0) { 3503 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic " 3504 "netlink cache"); 3505 goto fail; 3506 } 3507 3508 nl80211 = genl_ctrl_search_by_name(cache, name); 3509 if (nl80211 == NULL) 3510 goto fail; 3511 3512 id = genl_family_get_id(nl80211); 3513 3514fail: 3515 if (nl80211) 3516 genl_family_put(nl80211); 3517 if (cache) 3518 nl_cache_free(cache); 3519 3520 return id; 3521} 3522#define genl_ctrl_resolve android_genl_ctrl_resolve 3523#endif /* ANDROID */ 3524 3525 3526static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global) 3527{ 3528 int ret; 3529 3530 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3531 if (global->nl_cb == NULL) { 3532 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " 3533 "callbacks"); 3534 return -1; 3535 } 3536 3537 global->nl = nl_create_handle(global->nl_cb, "nl"); 3538 if (global->nl == NULL) 3539 goto err; 3540 3541 global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211"); 3542 if (global->nl80211_id < 0) { 3543 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not " 3544 "found"); 3545 goto err; 3546 } 3547 3548 global->nl_event = nl_create_handle(global->nl_cb, "event"); 3549 if (global->nl_event == NULL) 3550 goto err; 3551 3552 ret = nl_get_multicast_id(global, "nl80211", "scan"); 3553 if (ret >= 0) 3554 ret = nl_socket_add_membership(global->nl_event, ret); 3555 if (ret < 0) { 3556 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 3557 "membership for scan events: %d (%s)", 3558 ret, strerror(-ret)); 3559 goto err; 3560 } 3561 3562 ret = nl_get_multicast_id(global, "nl80211", "mlme"); 3563 if (ret >= 0) 3564 ret = nl_socket_add_membership(global->nl_event, ret); 3565 if (ret < 0) { 3566 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 3567 "membership for mlme events: %d (%s)", 3568 ret, strerror(-ret)); 3569 goto err; 3570 } 3571 3572 ret = nl_get_multicast_id(global, "nl80211", "regulatory"); 3573 if (ret >= 0) 3574 ret = nl_socket_add_membership(global->nl_event, ret); 3575 if (ret < 0) { 3576 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " 3577 "membership for regulatory events: %d (%s)", 3578 ret, strerror(-ret)); 3579 /* Continue without regulatory events */ 3580 } 3581 3582 nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3583 no_seq_check, NULL); 3584 nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3585 process_global_event, global); 3586 3587 nl80211_register_eloop_read(&global->nl_event, 3588 wpa_driver_nl80211_event_receive, 3589 global->nl_cb); 3590 3591 return 0; 3592 3593err: 3594 nl_destroy_handles(&global->nl_event); 3595 nl_destroy_handles(&global->nl); 3596 nl_cb_put(global->nl_cb); 3597 global->nl_cb = NULL; 3598 return -1; 3599} 3600 3601 3602static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv) 3603{ 3604 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3605 if (!drv->nl_cb) { 3606 wpa_printf(MSG_ERROR, "nl80211: Failed to alloc cb struct"); 3607 return -1; 3608 } 3609 3610 nl_cb_set(drv->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3611 no_seq_check, NULL); 3612 nl_cb_set(drv->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3613 process_drv_event, drv); 3614 3615 return 0; 3616} 3617 3618 3619static void wpa_driver_nl80211_rfkill_blocked(void *ctx) 3620{ 3621 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked"); 3622 /* 3623 * This may be for any interface; use ifdown event to disable 3624 * interface. 3625 */ 3626} 3627 3628 3629static void wpa_driver_nl80211_rfkill_unblocked(void *ctx) 3630{ 3631 struct wpa_driver_nl80211_data *drv = ctx; 3632 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked"); 3633 if (i802_set_iface_flags(drv->first_bss, 1)) { 3634 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP " 3635 "after rfkill unblock"); 3636 return; 3637 } 3638 /* rtnetlink ifup handler will report interface as enabled */ 3639} 3640 3641 3642static void wpa_driver_nl80211_handle_eapol_tx_status(int sock, 3643 void *eloop_ctx, 3644 void *handle) 3645{ 3646 struct wpa_driver_nl80211_data *drv = eloop_ctx; 3647 u8 data[2048]; 3648 struct msghdr msg; 3649 struct iovec entry; 3650 u8 control[512]; 3651 struct cmsghdr *cmsg; 3652 int res, found_ee = 0, found_wifi = 0, acked = 0; 3653 union wpa_event_data event; 3654 3655 memset(&msg, 0, sizeof(msg)); 3656 msg.msg_iov = &entry; 3657 msg.msg_iovlen = 1; 3658 entry.iov_base = data; 3659 entry.iov_len = sizeof(data); 3660 msg.msg_control = &control; 3661 msg.msg_controllen = sizeof(control); 3662 3663 res = recvmsg(sock, &msg, MSG_ERRQUEUE); 3664 /* if error or not fitting 802.3 header, return */ 3665 if (res < 14) 3666 return; 3667 3668 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) 3669 { 3670 if (cmsg->cmsg_level == SOL_SOCKET && 3671 cmsg->cmsg_type == SCM_WIFI_STATUS) { 3672 int *ack; 3673 3674 found_wifi = 1; 3675 ack = (void *)CMSG_DATA(cmsg); 3676 acked = *ack; 3677 } 3678 3679 if (cmsg->cmsg_level == SOL_PACKET && 3680 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) { 3681 struct sock_extended_err *err = 3682 (struct sock_extended_err *)CMSG_DATA(cmsg); 3683 3684 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS) 3685 found_ee = 1; 3686 } 3687 } 3688 3689 if (!found_ee || !found_wifi) 3690 return; 3691 3692 memset(&event, 0, sizeof(event)); 3693 event.eapol_tx_status.dst = data; 3694 event.eapol_tx_status.data = data + 14; 3695 event.eapol_tx_status.data_len = res - 14; 3696 event.eapol_tx_status.ack = acked; 3697 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event); 3698} 3699 3700 3701static int nl80211_init_bss(struct i802_bss *bss) 3702{ 3703 bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3704 if (!bss->nl_cb) 3705 return -1; 3706 3707 nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3708 no_seq_check, NULL); 3709 nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3710 process_bss_event, bss); 3711 3712 return 0; 3713} 3714 3715 3716static void nl80211_destroy_bss(struct i802_bss *bss) 3717{ 3718 nl_cb_put(bss->nl_cb); 3719 bss->nl_cb = NULL; 3720} 3721 3722 3723/** 3724 * wpa_driver_nl80211_init - Initialize nl80211 driver interface 3725 * @ctx: context to be used when calling wpa_supplicant functions, 3726 * e.g., wpa_supplicant_event() 3727 * @ifname: interface name, e.g., wlan0 3728 * @global_priv: private driver global data from global_init() 3729 * Returns: Pointer to private data, %NULL on failure 3730 */ 3731static void * wpa_driver_nl80211_init(void *ctx, const char *ifname, 3732 void *global_priv) 3733{ 3734 struct wpa_driver_nl80211_data *drv; 3735 struct rfkill_config *rcfg; 3736 struct i802_bss *bss; 3737 3738 if (global_priv == NULL) 3739 return NULL; 3740 drv = os_zalloc(sizeof(*drv)); 3741 if (drv == NULL) 3742 return NULL; 3743 drv->global = global_priv; 3744 drv->ctx = ctx; 3745 3746 drv->first_bss = os_zalloc(sizeof(*drv->first_bss)); 3747 if (!drv->first_bss) { 3748 os_free(drv); 3749 return NULL; 3750 } 3751 bss = drv->first_bss; 3752 bss->drv = drv; 3753 bss->ctx = ctx; 3754 3755 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname)); 3756 drv->monitor_ifidx = -1; 3757 drv->monitor_sock = -1; 3758 drv->eapol_tx_sock = -1; 3759 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 3760 3761 if (wpa_driver_nl80211_init_nl(drv)) { 3762 os_free(drv); 3763 return NULL; 3764 } 3765 3766 if (nl80211_init_bss(bss)) 3767 goto failed; 3768 3769 rcfg = os_zalloc(sizeof(*rcfg)); 3770 if (rcfg == NULL) 3771 goto failed; 3772 rcfg->ctx = drv; 3773 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname)); 3774 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked; 3775 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked; 3776 drv->rfkill = rfkill_init(rcfg); 3777 if (drv->rfkill == NULL) { 3778 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available"); 3779 os_free(rcfg); 3780 } 3781 3782 if (wpa_driver_nl80211_finish_drv_init(drv)) 3783 goto failed; 3784 3785 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0); 3786 if (drv->eapol_tx_sock < 0) 3787 goto failed; 3788 3789 if (drv->data_tx_status) { 3790 int enabled = 1; 3791 3792 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS, 3793 &enabled, sizeof(enabled)) < 0) { 3794 wpa_printf(MSG_DEBUG, 3795 "nl80211: wifi status sockopt failed\n"); 3796 drv->data_tx_status = 0; 3797 if (!drv->use_monitor) 3798 drv->capa.flags &= 3799 ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3800 } else { 3801 eloop_register_read_sock(drv->eapol_tx_sock, 3802 wpa_driver_nl80211_handle_eapol_tx_status, 3803 drv, NULL); 3804 } 3805 } 3806 3807 if (drv->global) { 3808 dl_list_add(&drv->global->interfaces, &drv->list); 3809 drv->in_interface_list = 1; 3810 } 3811 3812 return bss; 3813 3814failed: 3815 wpa_driver_nl80211_deinit(bss); 3816 return NULL; 3817} 3818 3819 3820static int nl80211_register_frame(struct i802_bss *bss, 3821 struct nl_handle *nl_handle, 3822 u16 type, const u8 *match, size_t match_len) 3823{ 3824 struct wpa_driver_nl80211_data *drv = bss->drv; 3825 struct nl_msg *msg; 3826 int ret = -1; 3827 3828 msg = nlmsg_alloc(); 3829 if (!msg) 3830 return -1; 3831 3832 wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x nl_handle=%p", 3833 type, nl_handle); 3834 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", 3835 match, match_len); 3836 3837 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION); 3838 3839 if (nl80211_set_iface_id(msg, bss) < 0) 3840 goto nla_put_failure; 3841 3842 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type); 3843 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match); 3844 3845 ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL); 3846 msg = NULL; 3847 if (ret) { 3848 wpa_printf(MSG_DEBUG, "nl80211: Register frame command " 3849 "failed (type=%u): ret=%d (%s)", 3850 type, ret, strerror(-ret)); 3851 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", 3852 match, match_len); 3853 goto nla_put_failure; 3854 } 3855 ret = 0; 3856nla_put_failure: 3857 nlmsg_free(msg); 3858 return ret; 3859} 3860 3861 3862static int nl80211_alloc_mgmt_handle(struct i802_bss *bss) 3863{ 3864 struct wpa_driver_nl80211_data *drv = bss->drv; 3865 3866 if (bss->nl_mgmt) { 3867 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting " 3868 "already on! (nl_mgmt=%p)", bss->nl_mgmt); 3869 return -1; 3870 } 3871 3872 bss->nl_mgmt = nl_create_handle(drv->nl_cb, "mgmt"); 3873 if (bss->nl_mgmt == NULL) 3874 return -1; 3875 3876 return 0; 3877} 3878 3879 3880static void nl80211_mgmt_handle_register_eloop(struct i802_bss *bss) 3881{ 3882 nl80211_register_eloop_read(&bss->nl_mgmt, 3883 wpa_driver_nl80211_event_receive, 3884 bss->nl_cb); 3885} 3886 3887 3888static int nl80211_register_action_frame(struct i802_bss *bss, 3889 const u8 *match, size_t match_len) 3890{ 3891 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4); 3892 return nl80211_register_frame(bss, bss->nl_mgmt, 3893 type, match, match_len); 3894} 3895 3896 3897static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss) 3898{ 3899 struct wpa_driver_nl80211_data *drv = bss->drv; 3900 3901 if (nl80211_alloc_mgmt_handle(bss)) 3902 return -1; 3903 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP " 3904 "handle %p", bss->nl_mgmt); 3905 3906 if (drv->nlmode == NL80211_IFTYPE_ADHOC) { 3907 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_AUTH << 4); 3908 3909 /* register for any AUTH message */ 3910 nl80211_register_frame(bss, bss->nl_mgmt, type, NULL, 0); 3911 } 3912 3913#ifdef CONFIG_INTERWORKING 3914 /* QoS Map Configure */ 3915 if (nl80211_register_action_frame(bss, (u8 *) "\x01\x04", 2) < 0) 3916 return -1; 3917#endif /* CONFIG_INTERWORKING */ 3918#if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING) 3919 /* GAS Initial Request */ 3920 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0) 3921 return -1; 3922 /* GAS Initial Response */ 3923 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0) 3924 return -1; 3925 /* GAS Comeback Request */ 3926 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0) 3927 return -1; 3928 /* GAS Comeback Response */ 3929 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0) 3930 return -1; 3931#endif /* CONFIG_P2P || CONFIG_INTERWORKING */ 3932#ifdef CONFIG_P2P 3933 /* P2P Public Action */ 3934 if (nl80211_register_action_frame(bss, 3935 (u8 *) "\x04\x09\x50\x6f\x9a\x09", 3936 6) < 0) 3937 return -1; 3938 /* P2P Action */ 3939 if (nl80211_register_action_frame(bss, 3940 (u8 *) "\x7f\x50\x6f\x9a\x09", 3941 5) < 0) 3942 return -1; 3943#endif /* CONFIG_P2P */ 3944#ifdef CONFIG_IEEE80211W 3945 /* SA Query Response */ 3946 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0) 3947 return -1; 3948#endif /* CONFIG_IEEE80211W */ 3949#ifdef CONFIG_TDLS 3950 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) { 3951 /* TDLS Discovery Response */ 3952 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) < 3953 0) 3954 return -1; 3955 } 3956#endif /* CONFIG_TDLS */ 3957 3958 /* FT Action frames */ 3959 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0) 3960 return -1; 3961 else 3962 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT | 3963 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK; 3964 3965 /* WNM - BSS Transition Management Request */ 3966 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0) 3967 return -1; 3968 /* WNM-Sleep Mode Response */ 3969 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x11", 2) < 0) 3970 return -1; 3971 3972 nl80211_mgmt_handle_register_eloop(bss); 3973 3974 return 0; 3975} 3976 3977 3978static int nl80211_register_spurious_class3(struct i802_bss *bss) 3979{ 3980 struct wpa_driver_nl80211_data *drv = bss->drv; 3981 struct nl_msg *msg; 3982 int ret = -1; 3983 3984 msg = nlmsg_alloc(); 3985 if (!msg) 3986 return -1; 3987 3988 nl80211_cmd(drv, msg, 0, NL80211_CMD_UNEXPECTED_FRAME); 3989 3990 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 3991 3992 ret = send_and_recv(drv->global, bss->nl_mgmt, msg, NULL, NULL); 3993 msg = NULL; 3994 if (ret) { 3995 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 " 3996 "failed: ret=%d (%s)", 3997 ret, strerror(-ret)); 3998 goto nla_put_failure; 3999 } 4000 ret = 0; 4001nla_put_failure: 4002 nlmsg_free(msg); 4003 return ret; 4004} 4005 4006 4007static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss) 4008{ 4009 static const int stypes[] = { 4010 WLAN_FC_STYPE_AUTH, 4011 WLAN_FC_STYPE_ASSOC_REQ, 4012 WLAN_FC_STYPE_REASSOC_REQ, 4013 WLAN_FC_STYPE_DISASSOC, 4014 WLAN_FC_STYPE_DEAUTH, 4015 WLAN_FC_STYPE_ACTION, 4016 WLAN_FC_STYPE_PROBE_REQ, 4017/* Beacon doesn't work as mac80211 doesn't currently allow 4018 * it, but it wouldn't really be the right thing anyway as 4019 * it isn't per interface ... maybe just dump the scan 4020 * results periodically for OLBC? 4021 */ 4022// WLAN_FC_STYPE_BEACON, 4023 }; 4024 unsigned int i; 4025 4026 if (nl80211_alloc_mgmt_handle(bss)) 4027 return -1; 4028 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 4029 "handle %p", bss->nl_mgmt); 4030 4031 for (i = 0; i < ARRAY_SIZE(stypes); i++) { 4032 if (nl80211_register_frame(bss, bss->nl_mgmt, 4033 (WLAN_FC_TYPE_MGMT << 2) | 4034 (stypes[i] << 4), 4035 NULL, 0) < 0) { 4036 goto out_err; 4037 } 4038 } 4039 4040 if (nl80211_register_spurious_class3(bss)) 4041 goto out_err; 4042 4043 if (nl80211_get_wiphy_data_ap(bss) == NULL) 4044 goto out_err; 4045 4046 nl80211_mgmt_handle_register_eloop(bss); 4047 return 0; 4048 4049out_err: 4050 nl_destroy_handles(&bss->nl_mgmt); 4051 return -1; 4052} 4053 4054 4055static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss) 4056{ 4057 if (nl80211_alloc_mgmt_handle(bss)) 4058 return -1; 4059 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 4060 "handle %p (device SME)", bss->nl_mgmt); 4061 4062 if (nl80211_register_frame(bss, bss->nl_mgmt, 4063 (WLAN_FC_TYPE_MGMT << 2) | 4064 (WLAN_FC_STYPE_ACTION << 4), 4065 NULL, 0) < 0) 4066 goto out_err; 4067 4068 nl80211_mgmt_handle_register_eloop(bss); 4069 return 0; 4070 4071out_err: 4072 nl_destroy_handles(&bss->nl_mgmt); 4073 return -1; 4074} 4075 4076 4077static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason) 4078{ 4079 if (bss->nl_mgmt == NULL) 4080 return; 4081 wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p " 4082 "(%s)", bss->nl_mgmt, reason); 4083 nl80211_destroy_eloop_handle(&bss->nl_mgmt); 4084 4085 nl80211_put_wiphy_data_ap(bss); 4086} 4087 4088 4089static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx) 4090{ 4091 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL); 4092} 4093 4094 4095static void nl80211_del_p2pdev(struct i802_bss *bss) 4096{ 4097 struct wpa_driver_nl80211_data *drv = bss->drv; 4098 struct nl_msg *msg; 4099 int ret; 4100 4101 msg = nlmsg_alloc(); 4102 if (!msg) 4103 return; 4104 4105 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 4106 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 4107 4108 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4109 msg = NULL; 4110 4111 wpa_printf(MSG_DEBUG, "nl80211: Delete P2P Device %s (0x%llx): %s", 4112 bss->ifname, (long long unsigned int) bss->wdev_id, 4113 strerror(-ret)); 4114 4115nla_put_failure: 4116 nlmsg_free(msg); 4117} 4118 4119 4120static int nl80211_set_p2pdev(struct i802_bss *bss, int start) 4121{ 4122 struct wpa_driver_nl80211_data *drv = bss->drv; 4123 struct nl_msg *msg; 4124 int ret = -1; 4125 4126 msg = nlmsg_alloc(); 4127 if (!msg) 4128 return -1; 4129 4130 if (start) 4131 nl80211_cmd(drv, msg, 0, NL80211_CMD_START_P2P_DEVICE); 4132 else 4133 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_P2P_DEVICE); 4134 4135 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 4136 4137 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4138 msg = NULL; 4139 4140 wpa_printf(MSG_DEBUG, "nl80211: %s P2P Device %s (0x%llx): %s", 4141 start ? "Start" : "Stop", 4142 bss->ifname, (long long unsigned int) bss->wdev_id, 4143 strerror(-ret)); 4144 4145nla_put_failure: 4146 nlmsg_free(msg); 4147 return ret; 4148} 4149 4150 4151static int i802_set_iface_flags(struct i802_bss *bss, int up) 4152{ 4153 enum nl80211_iftype nlmode; 4154 4155 nlmode = nl80211_get_ifmode(bss); 4156 if (nlmode != NL80211_IFTYPE_P2P_DEVICE) { 4157 return linux_set_iface_flags(bss->drv->global->ioctl_sock, 4158 bss->ifname, up); 4159 } 4160 4161 /* P2P Device has start/stop which is equivalent */ 4162 return nl80211_set_p2pdev(bss, up); 4163} 4164 4165 4166static int 4167wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv) 4168{ 4169#ifndef HOSTAPD 4170 enum nl80211_iftype nlmode = NL80211_IFTYPE_STATION; 4171#endif /* HOSTAPD */ 4172 struct i802_bss *bss = drv->first_bss; 4173 int send_rfkill_event = 0; 4174 4175 drv->ifindex = if_nametoindex(bss->ifname); 4176 bss->ifindex = drv->ifindex; 4177 bss->wdev_id = drv->global->if_add_wdevid; 4178 bss->wdev_id_set = drv->global->if_add_wdevid_set; 4179 4180 bss->if_dynamic = drv->ifindex == drv->global->if_add_ifindex; 4181 bss->if_dynamic = bss->if_dynamic || drv->global->if_add_wdevid_set; 4182 drv->global->if_add_wdevid_set = 0; 4183 4184 if (wpa_driver_nl80211_capa(drv)) 4185 return -1; 4186 4187 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s", 4188 bss->ifname, drv->phyname); 4189 4190#ifndef HOSTAPD 4191 if (bss->if_dynamic) 4192 nlmode = nl80211_get_ifmode(bss); 4193 4194 /* 4195 * Make sure the interface starts up in station mode unless this is a 4196 * dynamically added interface (e.g., P2P) that was already configured 4197 * with proper iftype. 4198 */ 4199 if (wpa_driver_nl80211_set_mode(bss, nlmode) < 0) { 4200 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver to use managed mode"); 4201 return -1; 4202 } 4203 drv->nlmode = nlmode; 4204 4205 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { 4206 int ret = nl80211_set_p2pdev(bss, 1); 4207 if (ret < 0) 4208 wpa_printf(MSG_ERROR, "nl80211: Could not start P2P device"); 4209 nl80211_get_macaddr(bss); 4210 return ret; 4211 } 4212 4213 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) { 4214 if (rfkill_is_blocked(drv->rfkill)) { 4215 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable " 4216 "interface '%s' due to rfkill", 4217 bss->ifname); 4218 drv->if_disabled = 1; 4219 send_rfkill_event = 1; 4220 } else { 4221 wpa_printf(MSG_ERROR, "nl80211: Could not set " 4222 "interface '%s' UP", bss->ifname); 4223 return -1; 4224 } 4225 } 4226 4227 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 4228 1, IF_OPER_DORMANT); 4229#endif /* HOSTAPD */ 4230 4231 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 4232 bss->addr)) 4233 return -1; 4234 4235 if (send_rfkill_event) { 4236 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill, 4237 drv, drv->ctx); 4238 } 4239 4240 return 0; 4241} 4242 4243 4244static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv) 4245{ 4246 struct nl_msg *msg; 4247 4248 msg = nlmsg_alloc(); 4249 if (!msg) 4250 return -ENOMEM; 4251 4252 wpa_printf(MSG_DEBUG, "nl80211: Remove beacon (ifindex=%d)", 4253 drv->ifindex); 4254 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON); 4255 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4256 4257 return send_and_recv_msgs(drv, msg, NULL, NULL); 4258 nla_put_failure: 4259 nlmsg_free(msg); 4260 return -ENOBUFS; 4261} 4262 4263 4264/** 4265 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface 4266 * @bss: Pointer to private nl80211 data from wpa_driver_nl80211_init() 4267 * 4268 * Shut down driver interface and processing of driver events. Free 4269 * private data buffer if one was allocated in wpa_driver_nl80211_init(). 4270 */ 4271static void wpa_driver_nl80211_deinit(struct i802_bss *bss) 4272{ 4273 struct wpa_driver_nl80211_data *drv = bss->drv; 4274 4275 bss->in_deinit = 1; 4276 if (drv->data_tx_status) 4277 eloop_unregister_read_sock(drv->eapol_tx_sock); 4278 if (drv->eapol_tx_sock >= 0) 4279 close(drv->eapol_tx_sock); 4280 4281 if (bss->nl_preq) 4282 wpa_driver_nl80211_probe_req_report(bss, 0); 4283 if (bss->added_if_into_bridge) { 4284 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 4285 bss->ifname) < 0) 4286 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 4287 "interface %s from bridge %s: %s", 4288 bss->ifname, bss->brname, strerror(errno)); 4289 } 4290 if (bss->added_bridge) { 4291 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 4292 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 4293 "bridge %s: %s", 4294 bss->brname, strerror(errno)); 4295 } 4296 4297 nl80211_remove_monitor_interface(drv); 4298 4299 if (is_ap_interface(drv->nlmode)) 4300 wpa_driver_nl80211_del_beacon(drv); 4301 4302#ifdef HOSTAPD 4303 if (drv->last_freq_ht) { 4304 /* Clear HT flags from the driver */ 4305 struct hostapd_freq_params freq; 4306 os_memset(&freq, 0, sizeof(freq)); 4307 freq.freq = drv->last_freq; 4308 wpa_driver_nl80211_set_freq(bss, &freq); 4309 } 4310 4311 if (drv->eapol_sock >= 0) { 4312 eloop_unregister_read_sock(drv->eapol_sock); 4313 close(drv->eapol_sock); 4314 } 4315 4316 if (drv->if_indices != drv->default_if_indices) 4317 os_free(drv->if_indices); 4318#endif /* HOSTAPD */ 4319 4320 if (drv->disabled_11b_rates) 4321 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 4322 4323 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0, 4324 IF_OPER_UP); 4325 rfkill_deinit(drv->rfkill); 4326 4327 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 4328 4329 (void) i802_set_iface_flags(bss, 0); 4330 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) { 4331 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION); 4332 nl80211_mgmt_unsubscribe(bss, "deinit"); 4333 } else { 4334 nl80211_mgmt_unsubscribe(bss, "deinit"); 4335 nl80211_del_p2pdev(bss); 4336 } 4337 nl_cb_put(drv->nl_cb); 4338 4339 nl80211_destroy_bss(drv->first_bss); 4340 4341 os_free(drv->filter_ssids); 4342 4343 os_free(drv->auth_ie); 4344 4345 if (drv->in_interface_list) 4346 dl_list_del(&drv->list); 4347 4348 os_free(drv->extended_capa); 4349 os_free(drv->extended_capa_mask); 4350 os_free(drv->first_bss); 4351 os_free(drv); 4352} 4353 4354 4355/** 4356 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion 4357 * @eloop_ctx: Driver private data 4358 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init() 4359 * 4360 * This function can be used as registered timeout when starting a scan to 4361 * generate a scan completed event if the driver does not report this. 4362 */ 4363static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx) 4364{ 4365 struct wpa_driver_nl80211_data *drv = eloop_ctx; 4366 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) { 4367 wpa_driver_nl80211_set_mode(drv->first_bss, 4368 drv->ap_scan_as_station); 4369 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 4370 } 4371 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results"); 4372 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL); 4373} 4374 4375 4376static struct nl_msg * 4377nl80211_scan_common(struct wpa_driver_nl80211_data *drv, u8 cmd, 4378 struct wpa_driver_scan_params *params, u64 *wdev_id) 4379{ 4380 struct nl_msg *msg; 4381 size_t i; 4382 4383 msg = nlmsg_alloc(); 4384 if (!msg) 4385 return NULL; 4386 4387 nl80211_cmd(drv, msg, 0, cmd); 4388 4389 if (!wdev_id) 4390 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4391 else 4392 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, *wdev_id); 4393 4394 if (params->num_ssids) { 4395 struct nlattr *ssids; 4396 4397 ssids = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); 4398 if (ssids == NULL) 4399 goto fail; 4400 for (i = 0; i < params->num_ssids; i++) { 4401 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID", 4402 params->ssids[i].ssid, 4403 params->ssids[i].ssid_len); 4404 if (nla_put(msg, i + 1, params->ssids[i].ssid_len, 4405 params->ssids[i].ssid) < 0) 4406 goto fail; 4407 } 4408 nla_nest_end(msg, ssids); 4409 } 4410 4411 if (params->extra_ies) { 4412 wpa_hexdump(MSG_MSGDUMP, "nl80211: Scan extra IEs", 4413 params->extra_ies, params->extra_ies_len); 4414 if (nla_put(msg, NL80211_ATTR_IE, params->extra_ies_len, 4415 params->extra_ies) < 0) 4416 goto fail; 4417 } 4418 4419 if (params->freqs) { 4420 struct nlattr *freqs; 4421 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); 4422 if (freqs == NULL) 4423 goto fail; 4424 for (i = 0; params->freqs[i]; i++) { 4425 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u " 4426 "MHz", params->freqs[i]); 4427 if (nla_put_u32(msg, i + 1, params->freqs[i]) < 0) 4428 goto fail; 4429 } 4430 nla_nest_end(msg, freqs); 4431 } 4432 4433 os_free(drv->filter_ssids); 4434 drv->filter_ssids = params->filter_ssids; 4435 params->filter_ssids = NULL; 4436 drv->num_filter_ssids = params->num_filter_ssids; 4437 4438 return msg; 4439 4440fail: 4441nla_put_failure: 4442 nlmsg_free(msg); 4443 return NULL; 4444} 4445 4446 4447/** 4448 * wpa_driver_nl80211_scan - Request the driver to initiate scan 4449 * @bss: Pointer to private driver data from wpa_driver_nl80211_init() 4450 * @params: Scan parameters 4451 * Returns: 0 on success, -1 on failure 4452 */ 4453static int wpa_driver_nl80211_scan(struct i802_bss *bss, 4454 struct wpa_driver_scan_params *params) 4455{ 4456 struct wpa_driver_nl80211_data *drv = bss->drv; 4457 int ret = -1, timeout; 4458 struct nl_msg *msg = NULL; 4459 4460 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: scan request"); 4461 drv->scan_for_auth = 0; 4462 4463 msg = nl80211_scan_common(drv, NL80211_CMD_TRIGGER_SCAN, params, 4464 bss->wdev_id_set ? &bss->wdev_id : NULL); 4465 if (!msg) 4466 return -1; 4467 4468 if (params->p2p_probe) { 4469 struct nlattr *rates; 4470 4471 wpa_printf(MSG_DEBUG, "nl80211: P2P probe - mask SuppRates"); 4472 4473 rates = nla_nest_start(msg, NL80211_ATTR_SCAN_SUPP_RATES); 4474 if (rates == NULL) 4475 goto nla_put_failure; 4476 4477 /* 4478 * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates 4479 * by masking out everything else apart from the OFDM rates 6, 4480 * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz 4481 * rates are left enabled. 4482 */ 4483 NLA_PUT(msg, NL80211_BAND_2GHZ, 8, 4484 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 4485 nla_nest_end(msg, rates); 4486 4487 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 4488 } 4489 4490 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4491 msg = NULL; 4492 if (ret) { 4493 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d " 4494 "(%s)", ret, strerror(-ret)); 4495#ifdef HOSTAPD 4496 if (is_ap_interface(drv->nlmode)) { 4497 /* 4498 * mac80211 does not allow scan requests in AP mode, so 4499 * try to do this in station mode. 4500 */ 4501 if (wpa_driver_nl80211_set_mode( 4502 bss, NL80211_IFTYPE_STATION)) 4503 goto nla_put_failure; 4504 4505 if (wpa_driver_nl80211_scan(bss, params)) { 4506 wpa_driver_nl80211_set_mode(bss, drv->nlmode); 4507 goto nla_put_failure; 4508 } 4509 4510 /* Restore AP mode when processing scan results */ 4511 drv->ap_scan_as_station = drv->nlmode; 4512 ret = 0; 4513 } else 4514 goto nla_put_failure; 4515#else /* HOSTAPD */ 4516 goto nla_put_failure; 4517#endif /* HOSTAPD */ 4518 } 4519 4520 drv->scan_state = SCAN_REQUESTED; 4521 /* Not all drivers generate "scan completed" wireless event, so try to 4522 * read results after a timeout. */ 4523 timeout = 10; 4524 if (drv->scan_complete_events) { 4525 /* 4526 * The driver seems to deliver events to notify when scan is 4527 * complete, so use longer timeout to avoid race conditions 4528 * with scanning and following association request. 4529 */ 4530 timeout = 30; 4531 } 4532 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d " 4533 "seconds", ret, timeout); 4534 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 4535 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout, 4536 drv, drv->ctx); 4537 4538nla_put_failure: 4539 nlmsg_free(msg); 4540 return ret; 4541} 4542 4543 4544/** 4545 * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan 4546 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 4547 * @params: Scan parameters 4548 * @interval: Interval between scan cycles in milliseconds 4549 * Returns: 0 on success, -1 on failure or if not supported 4550 */ 4551static int wpa_driver_nl80211_sched_scan(void *priv, 4552 struct wpa_driver_scan_params *params, 4553 u32 interval) 4554{ 4555 struct i802_bss *bss = priv; 4556 struct wpa_driver_nl80211_data *drv = bss->drv; 4557 int ret = -1; 4558 struct nl_msg *msg; 4559 size_t i; 4560 4561 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: sched_scan request"); 4562 4563#ifdef ANDROID 4564 if (!drv->capa.sched_scan_supported) 4565 return android_pno_start(bss, params); 4566#endif /* ANDROID */ 4567 4568 msg = nl80211_scan_common(drv, NL80211_CMD_START_SCHED_SCAN, params, 4569 bss->wdev_id_set ? &bss->wdev_id : NULL); 4570 if (!msg) 4571 goto nla_put_failure; 4572 4573 NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval); 4574 4575 if ((drv->num_filter_ssids && 4576 (int) drv->num_filter_ssids <= drv->capa.max_match_sets) || 4577 params->filter_rssi) { 4578 struct nlattr *match_sets; 4579 match_sets = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH); 4580 if (match_sets == NULL) 4581 goto nla_put_failure; 4582 4583 for (i = 0; i < drv->num_filter_ssids; i++) { 4584 struct nlattr *match_set_ssid; 4585 wpa_hexdump_ascii(MSG_MSGDUMP, 4586 "nl80211: Sched scan filter SSID", 4587 drv->filter_ssids[i].ssid, 4588 drv->filter_ssids[i].ssid_len); 4589 4590 match_set_ssid = nla_nest_start(msg, i + 1); 4591 if (match_set_ssid == NULL) 4592 goto nla_put_failure; 4593 NLA_PUT(msg, NL80211_ATTR_SCHED_SCAN_MATCH_SSID, 4594 drv->filter_ssids[i].ssid_len, 4595 drv->filter_ssids[i].ssid); 4596 4597 nla_nest_end(msg, match_set_ssid); 4598 } 4599 4600 if (params->filter_rssi) { 4601 struct nlattr *match_set_rssi; 4602 match_set_rssi = nla_nest_start(msg, 0); 4603 if (match_set_rssi == NULL) 4604 goto nla_put_failure; 4605 NLA_PUT_U32(msg, NL80211_SCHED_SCAN_MATCH_ATTR_RSSI, 4606 params->filter_rssi); 4607 wpa_printf(MSG_MSGDUMP, 4608 "nl80211: Sched scan RSSI filter %d dBm", 4609 params->filter_rssi); 4610 nla_nest_end(msg, match_set_rssi); 4611 } 4612 4613 nla_nest_end(msg, match_sets); 4614 } 4615 4616 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4617 4618 /* TODO: if we get an error here, we should fall back to normal scan */ 4619 4620 msg = NULL; 4621 if (ret) { 4622 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: " 4623 "ret=%d (%s)", ret, strerror(-ret)); 4624 goto nla_put_failure; 4625 } 4626 4627 wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - " 4628 "scan interval %d msec", ret, interval); 4629 4630nla_put_failure: 4631 nlmsg_free(msg); 4632 return ret; 4633} 4634 4635 4636/** 4637 * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan 4638 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 4639 * Returns: 0 on success, -1 on failure or if not supported 4640 */ 4641static int wpa_driver_nl80211_stop_sched_scan(void *priv) 4642{ 4643 struct i802_bss *bss = priv; 4644 struct wpa_driver_nl80211_data *drv = bss->drv; 4645 int ret = 0; 4646 struct nl_msg *msg; 4647 4648#ifdef ANDROID 4649 if (!drv->capa.sched_scan_supported) 4650 return android_pno_stop(bss); 4651#endif /* ANDROID */ 4652 4653 msg = nlmsg_alloc(); 4654 if (!msg) 4655 return -1; 4656 4657 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN); 4658 4659 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4660 4661 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4662 msg = NULL; 4663 if (ret) { 4664 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: " 4665 "ret=%d (%s)", ret, strerror(-ret)); 4666 goto nla_put_failure; 4667 } 4668 4669 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret); 4670 4671nla_put_failure: 4672 nlmsg_free(msg); 4673 return ret; 4674} 4675 4676 4677static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie) 4678{ 4679 const u8 *end, *pos; 4680 4681 if (ies == NULL) 4682 return NULL; 4683 4684 pos = ies; 4685 end = ies + ies_len; 4686 4687 while (pos + 1 < end) { 4688 if (pos + 2 + pos[1] > end) 4689 break; 4690 if (pos[0] == ie) 4691 return pos; 4692 pos += 2 + pos[1]; 4693 } 4694 4695 return NULL; 4696} 4697 4698 4699static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv, 4700 const u8 *ie, size_t ie_len) 4701{ 4702 const u8 *ssid; 4703 size_t i; 4704 4705 if (drv->filter_ssids == NULL) 4706 return 0; 4707 4708 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID); 4709 if (ssid == NULL) 4710 return 1; 4711 4712 for (i = 0; i < drv->num_filter_ssids; i++) { 4713 if (ssid[1] == drv->filter_ssids[i].ssid_len && 4714 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) == 4715 0) 4716 return 0; 4717 } 4718 4719 return 1; 4720} 4721 4722 4723static int bss_info_handler(struct nl_msg *msg, void *arg) 4724{ 4725 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 4726 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 4727 struct nlattr *bss[NL80211_BSS_MAX + 1]; 4728 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = { 4729 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC }, 4730 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 }, 4731 [NL80211_BSS_TSF] = { .type = NLA_U64 }, 4732 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 }, 4733 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 }, 4734 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC }, 4735 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 }, 4736 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 }, 4737 [NL80211_BSS_STATUS] = { .type = NLA_U32 }, 4738 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 }, 4739 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC }, 4740 }; 4741 struct nl80211_bss_info_arg *_arg = arg; 4742 struct wpa_scan_results *res = _arg->res; 4743 struct wpa_scan_res **tmp; 4744 struct wpa_scan_res *r; 4745 const u8 *ie, *beacon_ie; 4746 size_t ie_len, beacon_ie_len; 4747 u8 *pos; 4748 size_t i; 4749 4750 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 4751 genlmsg_attrlen(gnlh, 0), NULL); 4752 if (!tb[NL80211_ATTR_BSS]) 4753 return NL_SKIP; 4754 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS], 4755 bss_policy)) 4756 return NL_SKIP; 4757 if (bss[NL80211_BSS_STATUS]) { 4758 enum nl80211_bss_status status; 4759 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 4760 if (status == NL80211_BSS_STATUS_ASSOCIATED && 4761 bss[NL80211_BSS_FREQUENCY]) { 4762 _arg->assoc_freq = 4763 nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 4764 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz", 4765 _arg->assoc_freq); 4766 } 4767 if (status == NL80211_BSS_STATUS_ASSOCIATED && 4768 bss[NL80211_BSS_BSSID]) { 4769 os_memcpy(_arg->assoc_bssid, 4770 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN); 4771 wpa_printf(MSG_DEBUG, "nl80211: Associated with " 4772 MACSTR, MAC2STR(_arg->assoc_bssid)); 4773 } 4774 } 4775 if (!res) 4776 return NL_SKIP; 4777 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) { 4778 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 4779 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 4780 } else { 4781 ie = NULL; 4782 ie_len = 0; 4783 } 4784 if (bss[NL80211_BSS_BEACON_IES]) { 4785 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]); 4786 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]); 4787 } else { 4788 beacon_ie = NULL; 4789 beacon_ie_len = 0; 4790 } 4791 4792 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie, 4793 ie ? ie_len : beacon_ie_len)) 4794 return NL_SKIP; 4795 4796 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len); 4797 if (r == NULL) 4798 return NL_SKIP; 4799 if (bss[NL80211_BSS_BSSID]) 4800 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]), 4801 ETH_ALEN); 4802 if (bss[NL80211_BSS_FREQUENCY]) 4803 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 4804 if (bss[NL80211_BSS_BEACON_INTERVAL]) 4805 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]); 4806 if (bss[NL80211_BSS_CAPABILITY]) 4807 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]); 4808 r->flags |= WPA_SCAN_NOISE_INVALID; 4809 if (bss[NL80211_BSS_SIGNAL_MBM]) { 4810 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]); 4811 r->level /= 100; /* mBm to dBm */ 4812 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID; 4813 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) { 4814 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]); 4815 r->flags |= WPA_SCAN_QUAL_INVALID; 4816 } else 4817 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID; 4818 if (bss[NL80211_BSS_TSF]) 4819 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]); 4820 if (bss[NL80211_BSS_SEEN_MS_AGO]) 4821 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]); 4822 r->ie_len = ie_len; 4823 pos = (u8 *) (r + 1); 4824 if (ie) { 4825 os_memcpy(pos, ie, ie_len); 4826 pos += ie_len; 4827 } 4828 r->beacon_ie_len = beacon_ie_len; 4829 if (beacon_ie) 4830 os_memcpy(pos, beacon_ie, beacon_ie_len); 4831 4832 if (bss[NL80211_BSS_STATUS]) { 4833 enum nl80211_bss_status status; 4834 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 4835 switch (status) { 4836 case NL80211_BSS_STATUS_AUTHENTICATED: 4837 r->flags |= WPA_SCAN_AUTHENTICATED; 4838 break; 4839 case NL80211_BSS_STATUS_ASSOCIATED: 4840 r->flags |= WPA_SCAN_ASSOCIATED; 4841 break; 4842 default: 4843 break; 4844 } 4845 } 4846 4847 /* 4848 * cfg80211 maintains separate BSS table entries for APs if the same 4849 * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does 4850 * not use frequency as a separate key in the BSS table, so filter out 4851 * duplicated entries. Prefer associated BSS entry in such a case in 4852 * order to get the correct frequency into the BSS table. 4853 */ 4854 for (i = 0; i < res->num; i++) { 4855 const u8 *s1, *s2; 4856 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0) 4857 continue; 4858 4859 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1), 4860 res->res[i]->ie_len, WLAN_EID_SSID); 4861 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID); 4862 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] || 4863 os_memcmp(s1, s2, 2 + s1[1]) != 0) 4864 continue; 4865 4866 /* Same BSSID,SSID was already included in scan results */ 4867 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result " 4868 "for " MACSTR, MAC2STR(r->bssid)); 4869 4870 if ((r->flags & WPA_SCAN_ASSOCIATED) && 4871 !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) { 4872 os_free(res->res[i]); 4873 res->res[i] = r; 4874 } else 4875 os_free(r); 4876 return NL_SKIP; 4877 } 4878 4879 tmp = os_realloc_array(res->res, res->num + 1, 4880 sizeof(struct wpa_scan_res *)); 4881 if (tmp == NULL) { 4882 os_free(r); 4883 return NL_SKIP; 4884 } 4885 tmp[res->num++] = r; 4886 res->res = tmp; 4887 4888 return NL_SKIP; 4889} 4890 4891 4892static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv, 4893 const u8 *addr) 4894{ 4895 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 4896 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state " 4897 "mismatch (" MACSTR ")", MAC2STR(addr)); 4898 wpa_driver_nl80211_mlme(drv, addr, 4899 NL80211_CMD_DEAUTHENTICATE, 4900 WLAN_REASON_PREV_AUTH_NOT_VALID, 1); 4901 } 4902} 4903 4904 4905static void wpa_driver_nl80211_check_bss_status( 4906 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res) 4907{ 4908 size_t i; 4909 4910 for (i = 0; i < res->num; i++) { 4911 struct wpa_scan_res *r = res->res[i]; 4912 if (r->flags & WPA_SCAN_AUTHENTICATED) { 4913 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 4914 "indicates BSS status with " MACSTR 4915 " as authenticated", 4916 MAC2STR(r->bssid)); 4917 if (is_sta_interface(drv->nlmode) && 4918 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 && 4919 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) != 4920 0) { 4921 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID" 4922 " in local state (auth=" MACSTR 4923 " assoc=" MACSTR ")", 4924 MAC2STR(drv->auth_bssid), 4925 MAC2STR(drv->bssid)); 4926 clear_state_mismatch(drv, r->bssid); 4927 } 4928 } 4929 4930 if (r->flags & WPA_SCAN_ASSOCIATED) { 4931 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 4932 "indicate BSS status with " MACSTR 4933 " as associated", 4934 MAC2STR(r->bssid)); 4935 if (is_sta_interface(drv->nlmode) && 4936 !drv->associated) { 4937 wpa_printf(MSG_DEBUG, "nl80211: Local state " 4938 "(not associated) does not match " 4939 "with BSS state"); 4940 clear_state_mismatch(drv, r->bssid); 4941 } else if (is_sta_interface(drv->nlmode) && 4942 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) != 4943 0) { 4944 wpa_printf(MSG_DEBUG, "nl80211: Local state " 4945 "(associated with " MACSTR ") does " 4946 "not match with BSS state", 4947 MAC2STR(drv->bssid)); 4948 clear_state_mismatch(drv, r->bssid); 4949 clear_state_mismatch(drv, drv->bssid); 4950 } 4951 } 4952 } 4953} 4954 4955 4956static struct wpa_scan_results * 4957nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv) 4958{ 4959 struct nl_msg *msg; 4960 struct wpa_scan_results *res; 4961 int ret; 4962 struct nl80211_bss_info_arg arg; 4963 4964 res = os_zalloc(sizeof(*res)); 4965 if (res == NULL) 4966 return NULL; 4967 msg = nlmsg_alloc(); 4968 if (!msg) 4969 goto nla_put_failure; 4970 4971 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 4972 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 4973 goto nla_put_failure; 4974 4975 arg.drv = drv; 4976 arg.res = res; 4977 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 4978 msg = NULL; 4979 if (ret == 0) { 4980 wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu " 4981 "BSSes)", (unsigned long) res->num); 4982 nl80211_get_noise_for_scan_results(drv, res); 4983 return res; 4984 } 4985 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 4986 "(%s)", ret, strerror(-ret)); 4987nla_put_failure: 4988 nlmsg_free(msg); 4989 wpa_scan_results_free(res); 4990 return NULL; 4991} 4992 4993 4994/** 4995 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results 4996 * @priv: Pointer to private wext data from wpa_driver_nl80211_init() 4997 * Returns: Scan results on success, -1 on failure 4998 */ 4999static struct wpa_scan_results * 5000wpa_driver_nl80211_get_scan_results(void *priv) 5001{ 5002 struct i802_bss *bss = priv; 5003 struct wpa_driver_nl80211_data *drv = bss->drv; 5004 struct wpa_scan_results *res; 5005 5006 res = nl80211_get_scan_results(drv); 5007 if (res) 5008 wpa_driver_nl80211_check_bss_status(drv, res); 5009 return res; 5010} 5011 5012 5013static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv) 5014{ 5015 struct wpa_scan_results *res; 5016 size_t i; 5017 5018 res = nl80211_get_scan_results(drv); 5019 if (res == NULL) { 5020 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results"); 5021 return; 5022 } 5023 5024 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump"); 5025 for (i = 0; i < res->num; i++) { 5026 struct wpa_scan_res *r = res->res[i]; 5027 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s", 5028 (int) i, (int) res->num, MAC2STR(r->bssid), 5029 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "", 5030 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : ""); 5031 } 5032 5033 wpa_scan_results_free(res); 5034} 5035 5036 5037static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss, 5038 enum wpa_alg alg, const u8 *addr, 5039 int key_idx, int set_tx, 5040 const u8 *seq, size_t seq_len, 5041 const u8 *key, size_t key_len) 5042{ 5043 struct wpa_driver_nl80211_data *drv = bss->drv; 5044 int ifindex; 5045 struct nl_msg *msg; 5046 int ret; 5047 int tdls = 0; 5048 5049 /* Ignore for P2P Device */ 5050 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 5051 return 0; 5052 5053 ifindex = if_nametoindex(ifname); 5054 wpa_printf(MSG_DEBUG, "%s: ifindex=%d (%s) alg=%d addr=%p key_idx=%d " 5055 "set_tx=%d seq_len=%lu key_len=%lu", 5056 __func__, ifindex, ifname, alg, addr, key_idx, set_tx, 5057 (unsigned long) seq_len, (unsigned long) key_len); 5058#ifdef CONFIG_TDLS 5059 if (key_idx == -1) { 5060 key_idx = 0; 5061 tdls = 1; 5062 } 5063#endif /* CONFIG_TDLS */ 5064 5065 msg = nlmsg_alloc(); 5066 if (!msg) 5067 return -ENOMEM; 5068 5069 if (alg == WPA_ALG_NONE) { 5070 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY); 5071 } else { 5072 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY); 5073 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key); 5074 switch (alg) { 5075 case WPA_ALG_WEP: 5076 if (key_len == 5) 5077 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5078 WLAN_CIPHER_SUITE_WEP40); 5079 else 5080 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5081 WLAN_CIPHER_SUITE_WEP104); 5082 break; 5083 case WPA_ALG_TKIP: 5084 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5085 WLAN_CIPHER_SUITE_TKIP); 5086 break; 5087 case WPA_ALG_CCMP: 5088 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5089 WLAN_CIPHER_SUITE_CCMP); 5090 break; 5091 case WPA_ALG_GCMP: 5092 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5093 WLAN_CIPHER_SUITE_GCMP); 5094 break; 5095 case WPA_ALG_IGTK: 5096 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5097 WLAN_CIPHER_SUITE_AES_CMAC); 5098 break; 5099 case WPA_ALG_SMS4: 5100 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5101 WLAN_CIPHER_SUITE_SMS4); 5102 break; 5103 case WPA_ALG_KRK: 5104 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5105 WLAN_CIPHER_SUITE_KRK); 5106 break; 5107 default: 5108 wpa_printf(MSG_ERROR, "%s: Unsupported encryption " 5109 "algorithm %d", __func__, alg); 5110 nlmsg_free(msg); 5111 return -1; 5112 } 5113 } 5114 5115 if (seq && seq_len) 5116 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq); 5117 5118 if (addr && !is_broadcast_ether_addr(addr)) { 5119 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr)); 5120 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 5121 5122 if (alg != WPA_ALG_WEP && key_idx && !set_tx) { 5123 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK"); 5124 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, 5125 NL80211_KEYTYPE_GROUP); 5126 } 5127 } else if (addr && is_broadcast_ether_addr(addr)) { 5128 struct nlattr *types; 5129 5130 wpa_printf(MSG_DEBUG, " broadcast key"); 5131 5132 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5133 if (!types) 5134 goto nla_put_failure; 5135 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 5136 nla_nest_end(msg, types); 5137 } 5138 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 5139 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5140 5141 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5142 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE) 5143 ret = 0; 5144 if (ret) 5145 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)", 5146 ret, strerror(-ret)); 5147 5148 /* 5149 * If we failed or don't need to set the default TX key (below), 5150 * we're done here. 5151 */ 5152 if (ret || !set_tx || alg == WPA_ALG_NONE || tdls) 5153 return ret; 5154 if (is_ap_interface(drv->nlmode) && addr && 5155 !is_broadcast_ether_addr(addr)) 5156 return ret; 5157 5158 msg = nlmsg_alloc(); 5159 if (!msg) 5160 return -ENOMEM; 5161 5162 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY); 5163 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 5164 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5165 if (alg == WPA_ALG_IGTK) 5166 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT); 5167 else 5168 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT); 5169 if (addr && is_broadcast_ether_addr(addr)) { 5170 struct nlattr *types; 5171 5172 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5173 if (!types) 5174 goto nla_put_failure; 5175 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 5176 nla_nest_end(msg, types); 5177 } else if (addr) { 5178 struct nlattr *types; 5179 5180 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5181 if (!types) 5182 goto nla_put_failure; 5183 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_UNICAST); 5184 nla_nest_end(msg, types); 5185 } 5186 5187 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5188 if (ret == -ENOENT) 5189 ret = 0; 5190 if (ret) 5191 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; " 5192 "err=%d %s)", ret, strerror(-ret)); 5193 return ret; 5194 5195nla_put_failure: 5196 nlmsg_free(msg); 5197 return -ENOBUFS; 5198} 5199 5200 5201static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg, 5202 int key_idx, int defkey, 5203 const u8 *seq, size_t seq_len, 5204 const u8 *key, size_t key_len) 5205{ 5206 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY); 5207 if (!key_attr) 5208 return -1; 5209 5210 if (defkey && alg == WPA_ALG_IGTK) 5211 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT); 5212 else if (defkey) 5213 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 5214 5215 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx); 5216 5217 switch (alg) { 5218 case WPA_ALG_WEP: 5219 if (key_len == 5) 5220 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5221 WLAN_CIPHER_SUITE_WEP40); 5222 else 5223 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5224 WLAN_CIPHER_SUITE_WEP104); 5225 break; 5226 case WPA_ALG_TKIP: 5227 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP); 5228 break; 5229 case WPA_ALG_CCMP: 5230 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP); 5231 break; 5232 case WPA_ALG_GCMP: 5233 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_GCMP); 5234 break; 5235 case WPA_ALG_IGTK: 5236 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5237 WLAN_CIPHER_SUITE_AES_CMAC); 5238 break; 5239 default: 5240 wpa_printf(MSG_ERROR, "%s: Unsupported encryption " 5241 "algorithm %d", __func__, alg); 5242 return -1; 5243 } 5244 5245 if (seq && seq_len) 5246 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq); 5247 5248 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key); 5249 5250 nla_nest_end(msg, key_attr); 5251 5252 return 0; 5253 nla_put_failure: 5254 return -1; 5255} 5256 5257 5258static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params, 5259 struct nl_msg *msg) 5260{ 5261 int i, privacy = 0; 5262 struct nlattr *nl_keys, *nl_key; 5263 5264 for (i = 0; i < 4; i++) { 5265 if (!params->wep_key[i]) 5266 continue; 5267 privacy = 1; 5268 break; 5269 } 5270 if (params->wps == WPS_MODE_PRIVACY) 5271 privacy = 1; 5272 if (params->pairwise_suite && 5273 params->pairwise_suite != WPA_CIPHER_NONE) 5274 privacy = 1; 5275 5276 if (!privacy) 5277 return 0; 5278 5279 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 5280 5281 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS); 5282 if (!nl_keys) 5283 goto nla_put_failure; 5284 5285 for (i = 0; i < 4; i++) { 5286 if (!params->wep_key[i]) 5287 continue; 5288 5289 nl_key = nla_nest_start(msg, i); 5290 if (!nl_key) 5291 goto nla_put_failure; 5292 5293 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i], 5294 params->wep_key[i]); 5295 if (params->wep_key_len[i] == 5) 5296 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5297 WLAN_CIPHER_SUITE_WEP40); 5298 else 5299 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5300 WLAN_CIPHER_SUITE_WEP104); 5301 5302 NLA_PUT_U8(msg, NL80211_KEY_IDX, i); 5303 5304 if (i == params->wep_tx_keyidx) 5305 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 5306 5307 nla_nest_end(msg, nl_key); 5308 } 5309 nla_nest_end(msg, nl_keys); 5310 5311 return 0; 5312 5313nla_put_failure: 5314 return -ENOBUFS; 5315} 5316 5317 5318static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 5319 const u8 *addr, int cmd, u16 reason_code, 5320 int local_state_change) 5321{ 5322 int ret = -1; 5323 struct nl_msg *msg; 5324 5325 msg = nlmsg_alloc(); 5326 if (!msg) 5327 return -1; 5328 5329 nl80211_cmd(drv, msg, 0, cmd); 5330 5331 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5332 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code); 5333 if (addr) 5334 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 5335 if (local_state_change) 5336 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 5337 5338 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5339 msg = NULL; 5340 if (ret) { 5341 wpa_dbg(drv->ctx, MSG_DEBUG, 5342 "nl80211: MLME command failed: reason=%u ret=%d (%s)", 5343 reason_code, ret, strerror(-ret)); 5344 goto nla_put_failure; 5345 } 5346 ret = 0; 5347 5348nla_put_failure: 5349 nlmsg_free(msg); 5350 return ret; 5351} 5352 5353 5354static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv, 5355 int reason_code) 5356{ 5357 int ret; 5358 5359 wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code); 5360 nl80211_mark_disconnected(drv); 5361 /* Disconnect command doesn't need BSSID - it uses cached value */ 5362 ret = wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT, 5363 reason_code, 0); 5364 /* 5365 * For locally generated disconnect, supplicant already generates a 5366 * DEAUTH event, so ignore the event from NL80211. 5367 */ 5368 drv->ignore_next_local_disconnect = ret == 0; 5369 5370 return ret; 5371} 5372 5373 5374static int wpa_driver_nl80211_deauthenticate(struct i802_bss *bss, 5375 const u8 *addr, int reason_code) 5376{ 5377 struct wpa_driver_nl80211_data *drv = bss->drv; 5378 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) 5379 return wpa_driver_nl80211_disconnect(drv, reason_code); 5380 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)", 5381 __func__, MAC2STR(addr), reason_code); 5382 nl80211_mark_disconnected(drv); 5383 if (drv->nlmode == NL80211_IFTYPE_ADHOC) 5384 return nl80211_leave_ibss(drv); 5385 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE, 5386 reason_code, 0); 5387} 5388 5389 5390static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv, 5391 struct wpa_driver_auth_params *params) 5392{ 5393 int i; 5394 5395 drv->auth_freq = params->freq; 5396 drv->auth_alg = params->auth_alg; 5397 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx; 5398 drv->auth_local_state_change = params->local_state_change; 5399 drv->auth_p2p = params->p2p; 5400 5401 if (params->bssid) 5402 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN); 5403 else 5404 os_memset(drv->auth_bssid_, 0, ETH_ALEN); 5405 5406 if (params->ssid) { 5407 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len); 5408 drv->auth_ssid_len = params->ssid_len; 5409 } else 5410 drv->auth_ssid_len = 0; 5411 5412 5413 os_free(drv->auth_ie); 5414 drv->auth_ie = NULL; 5415 drv->auth_ie_len = 0; 5416 if (params->ie) { 5417 drv->auth_ie = os_malloc(params->ie_len); 5418 if (drv->auth_ie) { 5419 os_memcpy(drv->auth_ie, params->ie, params->ie_len); 5420 drv->auth_ie_len = params->ie_len; 5421 } 5422 } 5423 5424 for (i = 0; i < 4; i++) { 5425 if (params->wep_key[i] && params->wep_key_len[i] && 5426 params->wep_key_len[i] <= 16) { 5427 os_memcpy(drv->auth_wep_key[i], params->wep_key[i], 5428 params->wep_key_len[i]); 5429 drv->auth_wep_key_len[i] = params->wep_key_len[i]; 5430 } else 5431 drv->auth_wep_key_len[i] = 0; 5432 } 5433} 5434 5435 5436static int wpa_driver_nl80211_authenticate( 5437 struct i802_bss *bss, struct wpa_driver_auth_params *params) 5438{ 5439 struct wpa_driver_nl80211_data *drv = bss->drv; 5440 int ret = -1, i; 5441 struct nl_msg *msg; 5442 enum nl80211_auth_type type; 5443 enum nl80211_iftype nlmode; 5444 int count = 0; 5445 int is_retry; 5446 5447 is_retry = drv->retry_auth; 5448 drv->retry_auth = 0; 5449 5450 nl80211_mark_disconnected(drv); 5451 os_memset(drv->auth_bssid, 0, ETH_ALEN); 5452 if (params->bssid) 5453 os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN); 5454 else 5455 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 5456 /* FIX: IBSS mode */ 5457 nlmode = params->p2p ? 5458 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 5459 if (drv->nlmode != nlmode && 5460 wpa_driver_nl80211_set_mode(bss, nlmode) < 0) 5461 return -1; 5462 5463retry: 5464 msg = nlmsg_alloc(); 5465 if (!msg) 5466 return -1; 5467 5468 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)", 5469 drv->ifindex); 5470 5471 nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE); 5472 5473 for (i = 0; i < 4; i++) { 5474 if (!params->wep_key[i]) 5475 continue; 5476 wpa_driver_nl80211_set_key(bss->ifname, bss, WPA_ALG_WEP, 5477 NULL, i, 5478 i == params->wep_tx_keyidx, NULL, 0, 5479 params->wep_key[i], 5480 params->wep_key_len[i]); 5481 if (params->wep_tx_keyidx != i) 5482 continue; 5483 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0, 5484 params->wep_key[i], params->wep_key_len[i])) { 5485 nlmsg_free(msg); 5486 return -1; 5487 } 5488 } 5489 5490 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5491 if (params->bssid) { 5492 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 5493 MAC2STR(params->bssid)); 5494 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 5495 } 5496 if (params->freq) { 5497 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 5498 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 5499 } 5500 if (params->ssid) { 5501 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 5502 params->ssid, params->ssid_len); 5503 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 5504 params->ssid); 5505 } 5506 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len); 5507 if (params->ie) 5508 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie); 5509 if (params->sae_data) { 5510 wpa_hexdump(MSG_DEBUG, " * SAE data", params->sae_data, 5511 params->sae_data_len); 5512 NLA_PUT(msg, NL80211_ATTR_SAE_DATA, params->sae_data_len, 5513 params->sae_data); 5514 } 5515 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 5516 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 5517 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 5518 type = NL80211_AUTHTYPE_SHARED_KEY; 5519 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 5520 type = NL80211_AUTHTYPE_NETWORK_EAP; 5521 else if (params->auth_alg & WPA_AUTH_ALG_FT) 5522 type = NL80211_AUTHTYPE_FT; 5523 else if (params->auth_alg & WPA_AUTH_ALG_SAE) 5524 type = NL80211_AUTHTYPE_SAE; 5525 else 5526 goto nla_put_failure; 5527 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 5528 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 5529 if (params->local_state_change) { 5530 wpa_printf(MSG_DEBUG, " * Local state change only"); 5531 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 5532 } 5533 5534 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5535 msg = NULL; 5536 if (ret) { 5537 wpa_dbg(drv->ctx, MSG_DEBUG, 5538 "nl80211: MLME command failed (auth): ret=%d (%s)", 5539 ret, strerror(-ret)); 5540 count++; 5541 if (ret == -EALREADY && count == 1 && params->bssid && 5542 !params->local_state_change) { 5543 /* 5544 * mac80211 does not currently accept new 5545 * authentication if we are already authenticated. As a 5546 * workaround, force deauthentication and try again. 5547 */ 5548 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication " 5549 "after forced deauthentication"); 5550 wpa_driver_nl80211_deauthenticate( 5551 bss, params->bssid, 5552 WLAN_REASON_PREV_AUTH_NOT_VALID); 5553 nlmsg_free(msg); 5554 goto retry; 5555 } 5556 5557 if (ret == -ENOENT && params->freq && !is_retry) { 5558 /* 5559 * cfg80211 has likely expired the BSS entry even 5560 * though it was previously available in our internal 5561 * BSS table. To recover quickly, start a single 5562 * channel scan on the specified channel. 5563 */ 5564 struct wpa_driver_scan_params scan; 5565 int freqs[2]; 5566 5567 os_memset(&scan, 0, sizeof(scan)); 5568 scan.num_ssids = 1; 5569 if (params->ssid) { 5570 scan.ssids[0].ssid = params->ssid; 5571 scan.ssids[0].ssid_len = params->ssid_len; 5572 } 5573 freqs[0] = params->freq; 5574 freqs[1] = 0; 5575 scan.freqs = freqs; 5576 wpa_printf(MSG_DEBUG, "nl80211: Trigger single " 5577 "channel scan to refresh cfg80211 BSS " 5578 "entry"); 5579 ret = wpa_driver_nl80211_scan(bss, &scan); 5580 if (ret == 0) { 5581 nl80211_copy_auth_params(drv, params); 5582 drv->scan_for_auth = 1; 5583 } 5584 } else if (is_retry) { 5585 /* 5586 * Need to indicate this with an event since the return 5587 * value from the retry is not delivered to core code. 5588 */ 5589 union wpa_event_data event; 5590 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry " 5591 "failed"); 5592 os_memset(&event, 0, sizeof(event)); 5593 os_memcpy(event.timeout_event.addr, drv->auth_bssid_, 5594 ETH_ALEN); 5595 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT, 5596 &event); 5597 } 5598 5599 goto nla_put_failure; 5600 } 5601 ret = 0; 5602 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send " 5603 "successfully"); 5604 5605nla_put_failure: 5606 nlmsg_free(msg); 5607 return ret; 5608} 5609 5610 5611static int wpa_driver_nl80211_authenticate_retry( 5612 struct wpa_driver_nl80211_data *drv) 5613{ 5614 struct wpa_driver_auth_params params; 5615 struct i802_bss *bss = drv->first_bss; 5616 int i; 5617 5618 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again"); 5619 5620 os_memset(¶ms, 0, sizeof(params)); 5621 params.freq = drv->auth_freq; 5622 params.auth_alg = drv->auth_alg; 5623 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx; 5624 params.local_state_change = drv->auth_local_state_change; 5625 params.p2p = drv->auth_p2p; 5626 5627 if (!is_zero_ether_addr(drv->auth_bssid_)) 5628 params.bssid = drv->auth_bssid_; 5629 5630 if (drv->auth_ssid_len) { 5631 params.ssid = drv->auth_ssid; 5632 params.ssid_len = drv->auth_ssid_len; 5633 } 5634 5635 params.ie = drv->auth_ie; 5636 params.ie_len = drv->auth_ie_len; 5637 5638 for (i = 0; i < 4; i++) { 5639 if (drv->auth_wep_key_len[i]) { 5640 params.wep_key[i] = drv->auth_wep_key[i]; 5641 params.wep_key_len[i] = drv->auth_wep_key_len[i]; 5642 } 5643 } 5644 5645 drv->retry_auth = 1; 5646 return wpa_driver_nl80211_authenticate(bss, ¶ms); 5647} 5648 5649 5650struct phy_info_arg { 5651 u16 *num_modes; 5652 struct hostapd_hw_modes *modes; 5653 int last_mode, last_chan_idx; 5654}; 5655 5656static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa, 5657 struct nlattr *ampdu_factor, 5658 struct nlattr *ampdu_density, 5659 struct nlattr *mcs_set) 5660{ 5661 if (capa) 5662 mode->ht_capab = nla_get_u16(capa); 5663 5664 if (ampdu_factor) 5665 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03; 5666 5667 if (ampdu_density) 5668 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2; 5669 5670 if (mcs_set && nla_len(mcs_set) >= 16) { 5671 u8 *mcs; 5672 mcs = nla_data(mcs_set); 5673 os_memcpy(mode->mcs_set, mcs, 16); 5674 } 5675} 5676 5677 5678static void phy_info_vht_capa(struct hostapd_hw_modes *mode, 5679 struct nlattr *capa, 5680 struct nlattr *mcs_set) 5681{ 5682 if (capa) 5683 mode->vht_capab = nla_get_u32(capa); 5684 5685 if (mcs_set && nla_len(mcs_set) >= 8) { 5686 u8 *mcs; 5687 mcs = nla_data(mcs_set); 5688 os_memcpy(mode->vht_mcs_set, mcs, 8); 5689 } 5690} 5691 5692 5693static void phy_info_freq(struct hostapd_hw_modes *mode, 5694 struct hostapd_channel_data *chan, 5695 struct nlattr *tb_freq[]) 5696{ 5697 u8 channel; 5698 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]); 5699 chan->flag = 0; 5700 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES) 5701 chan->chan = channel; 5702 5703 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) 5704 chan->flag |= HOSTAPD_CHAN_DISABLED; 5705 if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN]) 5706 chan->flag |= HOSTAPD_CHAN_PASSIVE_SCAN; 5707 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS]) 5708 chan->flag |= HOSTAPD_CHAN_NO_IBSS; 5709 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR]) 5710 chan->flag |= HOSTAPD_CHAN_RADAR; 5711 5712 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) { 5713 enum nl80211_dfs_state state = 5714 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]); 5715 5716 switch (state) { 5717 case NL80211_DFS_USABLE: 5718 chan->flag |= HOSTAPD_CHAN_DFS_USABLE; 5719 break; 5720 case NL80211_DFS_AVAILABLE: 5721 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE; 5722 break; 5723 case NL80211_DFS_UNAVAILABLE: 5724 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE; 5725 break; 5726 } 5727 } 5728} 5729 5730 5731static int phy_info_freqs(struct phy_info_arg *phy_info, 5732 struct hostapd_hw_modes *mode, struct nlattr *tb) 5733{ 5734 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 5735 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 }, 5736 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG }, 5737 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG }, 5738 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG }, 5739 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG }, 5740 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 }, 5741 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 }, 5742 }; 5743 int new_channels = 0; 5744 struct hostapd_channel_data *channel; 5745 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1]; 5746 struct nlattr *nl_freq; 5747 int rem_freq, idx; 5748 5749 if (tb == NULL) 5750 return NL_OK; 5751 5752 nla_for_each_nested(nl_freq, tb, rem_freq) { 5753 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 5754 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 5755 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 5756 continue; 5757 new_channels++; 5758 } 5759 5760 channel = os_realloc_array(mode->channels, 5761 mode->num_channels + new_channels, 5762 sizeof(struct hostapd_channel_data)); 5763 if (!channel) 5764 return NL_SKIP; 5765 5766 mode->channels = channel; 5767 mode->num_channels += new_channels; 5768 5769 idx = phy_info->last_chan_idx; 5770 5771 nla_for_each_nested(nl_freq, tb, rem_freq) { 5772 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 5773 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 5774 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 5775 continue; 5776 phy_info_freq(mode, &mode->channels[idx], tb_freq); 5777 idx++; 5778 } 5779 phy_info->last_chan_idx = idx; 5780 5781 return NL_OK; 5782} 5783 5784 5785static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb) 5786{ 5787 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = { 5788 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 }, 5789 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = 5790 { .type = NLA_FLAG }, 5791 }; 5792 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1]; 5793 struct nlattr *nl_rate; 5794 int rem_rate, idx; 5795 5796 if (tb == NULL) 5797 return NL_OK; 5798 5799 nla_for_each_nested(nl_rate, tb, rem_rate) { 5800 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 5801 nla_data(nl_rate), nla_len(nl_rate), 5802 rate_policy); 5803 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 5804 continue; 5805 mode->num_rates++; 5806 } 5807 5808 mode->rates = os_calloc(mode->num_rates, sizeof(int)); 5809 if (!mode->rates) 5810 return NL_SKIP; 5811 5812 idx = 0; 5813 5814 nla_for_each_nested(nl_rate, tb, rem_rate) { 5815 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 5816 nla_data(nl_rate), nla_len(nl_rate), 5817 rate_policy); 5818 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 5819 continue; 5820 mode->rates[idx] = nla_get_u32( 5821 tb_rate[NL80211_BITRATE_ATTR_RATE]); 5822 idx++; 5823 } 5824 5825 return NL_OK; 5826} 5827 5828 5829static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band) 5830{ 5831 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1]; 5832 struct hostapd_hw_modes *mode; 5833 int ret; 5834 5835 if (phy_info->last_mode != nl_band->nla_type) { 5836 mode = os_realloc_array(phy_info->modes, 5837 *phy_info->num_modes + 1, 5838 sizeof(*mode)); 5839 if (!mode) 5840 return NL_SKIP; 5841 phy_info->modes = mode; 5842 5843 mode = &phy_info->modes[*(phy_info->num_modes)]; 5844 os_memset(mode, 0, sizeof(*mode)); 5845 mode->mode = NUM_HOSTAPD_MODES; 5846 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN | 5847 HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN; 5848 5849 /* 5850 * Unsupported VHT MCS stream is defined as value 3, so the VHT 5851 * MCS RX/TX map must be initialized with 0xffff to mark all 8 5852 * possible streams as unsupported. This will be overridden if 5853 * driver advertises VHT support. 5854 */ 5855 mode->vht_mcs_set[0] = 0xff; 5856 mode->vht_mcs_set[1] = 0xff; 5857 mode->vht_mcs_set[4] = 0xff; 5858 mode->vht_mcs_set[5] = 0xff; 5859 5860 *(phy_info->num_modes) += 1; 5861 phy_info->last_mode = nl_band->nla_type; 5862 phy_info->last_chan_idx = 0; 5863 } else 5864 mode = &phy_info->modes[*(phy_info->num_modes) - 1]; 5865 5866 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band), 5867 nla_len(nl_band), NULL); 5868 5869 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA], 5870 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR], 5871 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY], 5872 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]); 5873 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA], 5874 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]); 5875 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]); 5876 if (ret != NL_OK) 5877 return ret; 5878 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]); 5879 if (ret != NL_OK) 5880 return ret; 5881 5882 return NL_OK; 5883} 5884 5885 5886static int phy_info_handler(struct nl_msg *msg, void *arg) 5887{ 5888 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 5889 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 5890 struct phy_info_arg *phy_info = arg; 5891 struct nlattr *nl_band; 5892 int rem_band; 5893 5894 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 5895 genlmsg_attrlen(gnlh, 0), NULL); 5896 5897 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS]) 5898 return NL_SKIP; 5899 5900 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) 5901 { 5902 int res = phy_info_band(phy_info, nl_band); 5903 if (res != NL_OK) 5904 return res; 5905 } 5906 5907 return NL_SKIP; 5908} 5909 5910 5911static struct hostapd_hw_modes * 5912wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes, 5913 u16 *num_modes) 5914{ 5915 u16 m; 5916 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode; 5917 int i, mode11g_idx = -1; 5918 5919 /* heuristic to set up modes */ 5920 for (m = 0; m < *num_modes; m++) { 5921 if (!modes[m].num_channels) 5922 continue; 5923 if (modes[m].channels[0].freq < 4000) { 5924 modes[m].mode = HOSTAPD_MODE_IEEE80211B; 5925 for (i = 0; i < modes[m].num_rates; i++) { 5926 if (modes[m].rates[i] > 200) { 5927 modes[m].mode = HOSTAPD_MODE_IEEE80211G; 5928 break; 5929 } 5930 } 5931 } else if (modes[m].channels[0].freq > 50000) 5932 modes[m].mode = HOSTAPD_MODE_IEEE80211AD; 5933 else 5934 modes[m].mode = HOSTAPD_MODE_IEEE80211A; 5935 } 5936 5937 /* If only 802.11g mode is included, use it to construct matching 5938 * 802.11b mode data. */ 5939 5940 for (m = 0; m < *num_modes; m++) { 5941 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B) 5942 return modes; /* 802.11b already included */ 5943 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G) 5944 mode11g_idx = m; 5945 } 5946 5947 if (mode11g_idx < 0) 5948 return modes; /* 2.4 GHz band not supported at all */ 5949 5950 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes)); 5951 if (nmodes == NULL) 5952 return modes; /* Could not add 802.11b mode */ 5953 5954 mode = &nmodes[*num_modes]; 5955 os_memset(mode, 0, sizeof(*mode)); 5956 (*num_modes)++; 5957 modes = nmodes; 5958 5959 mode->mode = HOSTAPD_MODE_IEEE80211B; 5960 5961 mode11g = &modes[mode11g_idx]; 5962 mode->num_channels = mode11g->num_channels; 5963 mode->channels = os_malloc(mode11g->num_channels * 5964 sizeof(struct hostapd_channel_data)); 5965 if (mode->channels == NULL) { 5966 (*num_modes)--; 5967 return modes; /* Could not add 802.11b mode */ 5968 } 5969 os_memcpy(mode->channels, mode11g->channels, 5970 mode11g->num_channels * sizeof(struct hostapd_channel_data)); 5971 5972 mode->num_rates = 0; 5973 mode->rates = os_malloc(4 * sizeof(int)); 5974 if (mode->rates == NULL) { 5975 os_free(mode->channels); 5976 (*num_modes)--; 5977 return modes; /* Could not add 802.11b mode */ 5978 } 5979 5980 for (i = 0; i < mode11g->num_rates; i++) { 5981 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 && 5982 mode11g->rates[i] != 55 && mode11g->rates[i] != 110) 5983 continue; 5984 mode->rates[mode->num_rates] = mode11g->rates[i]; 5985 mode->num_rates++; 5986 if (mode->num_rates == 4) 5987 break; 5988 } 5989 5990 if (mode->num_rates == 0) { 5991 os_free(mode->channels); 5992 os_free(mode->rates); 5993 (*num_modes)--; 5994 return modes; /* No 802.11b rates */ 5995 } 5996 5997 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g " 5998 "information"); 5999 6000 return modes; 6001} 6002 6003 6004static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start, 6005 int end) 6006{ 6007 int c; 6008 6009 for (c = 0; c < mode->num_channels; c++) { 6010 struct hostapd_channel_data *chan = &mode->channels[c]; 6011 if (chan->freq - 10 >= start && chan->freq + 10 <= end) 6012 chan->flag |= HOSTAPD_CHAN_HT40; 6013 } 6014} 6015 6016 6017static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start, 6018 int end) 6019{ 6020 int c; 6021 6022 for (c = 0; c < mode->num_channels; c++) { 6023 struct hostapd_channel_data *chan = &mode->channels[c]; 6024 if (!(chan->flag & HOSTAPD_CHAN_HT40)) 6025 continue; 6026 if (chan->freq - 30 >= start && chan->freq - 10 <= end) 6027 chan->flag |= HOSTAPD_CHAN_HT40MINUS; 6028 if (chan->freq + 10 >= start && chan->freq + 30 <= end) 6029 chan->flag |= HOSTAPD_CHAN_HT40PLUS; 6030 } 6031} 6032 6033 6034static void nl80211_reg_rule_max_eirp(struct nlattr *tb[], 6035 struct phy_info_arg *results) 6036{ 6037 u32 start, end, max_eirp; 6038 u16 m; 6039 6040 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6041 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 6042 tb[NL80211_ATTR_POWER_RULE_MAX_EIRP] == NULL) 6043 return; 6044 6045 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6046 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6047 max_eirp = nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]) / 100; 6048 6049 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u mBm", 6050 start, end, max_eirp); 6051 6052 for (m = 0; m < *results->num_modes; m++) { 6053 int c; 6054 struct hostapd_hw_modes *mode = &results->modes[m]; 6055 6056 for (c = 0; c < mode->num_channels; c++) { 6057 struct hostapd_channel_data *chan = &mode->channels[c]; 6058 if ((u32) chan->freq - 10 >= start && 6059 (u32) chan->freq + 10 <= end) 6060 chan->max_tx_power = max_eirp; 6061 } 6062 } 6063} 6064 6065 6066static void nl80211_reg_rule_ht40(struct nlattr *tb[], 6067 struct phy_info_arg *results) 6068{ 6069 u32 start, end, max_bw; 6070 u16 m; 6071 6072 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6073 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 6074 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 6075 return; 6076 6077 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6078 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6079 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6080 6081 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz", 6082 start, end, max_bw); 6083 if (max_bw < 40) 6084 return; 6085 6086 for (m = 0; m < *results->num_modes; m++) { 6087 if (!(results->modes[m].ht_capab & 6088 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6089 continue; 6090 nl80211_set_ht40_mode(&results->modes[m], start, end); 6091 } 6092} 6093 6094 6095static void nl80211_reg_rule_sec(struct nlattr *tb[], 6096 struct phy_info_arg *results) 6097{ 6098 u32 start, end, max_bw; 6099 u16 m; 6100 6101 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6102 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 6103 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 6104 return; 6105 6106 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6107 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6108 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6109 6110 if (max_bw < 20) 6111 return; 6112 6113 for (m = 0; m < *results->num_modes; m++) { 6114 if (!(results->modes[m].ht_capab & 6115 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6116 continue; 6117 nl80211_set_ht40_mode_sec(&results->modes[m], start, end); 6118 } 6119} 6120 6121 6122static void nl80211_set_vht_mode(struct hostapd_hw_modes *mode, int start, 6123 int end) 6124{ 6125 int c; 6126 6127 for (c = 0; c < mode->num_channels; c++) { 6128 struct hostapd_channel_data *chan = &mode->channels[c]; 6129 if (chan->freq - 10 >= start && chan->freq + 70 <= end) 6130 chan->flag |= HOSTAPD_CHAN_VHT_10_70; 6131 6132 if (chan->freq - 30 >= start && chan->freq + 50 <= end) 6133 chan->flag |= HOSTAPD_CHAN_VHT_30_50; 6134 6135 if (chan->freq - 50 >= start && chan->freq + 30 <= end) 6136 chan->flag |= HOSTAPD_CHAN_VHT_50_30; 6137 6138 if (chan->freq - 70 >= start && chan->freq + 10 <= end) 6139 chan->flag |= HOSTAPD_CHAN_VHT_70_10; 6140 } 6141} 6142 6143 6144static void nl80211_reg_rule_vht(struct nlattr *tb[], 6145 struct phy_info_arg *results) 6146{ 6147 u32 start, end, max_bw; 6148 u16 m; 6149 6150 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6151 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 6152 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 6153 return; 6154 6155 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6156 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6157 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6158 6159 if (max_bw < 80) 6160 return; 6161 6162 for (m = 0; m < *results->num_modes; m++) { 6163 if (!(results->modes[m].ht_capab & 6164 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6165 continue; 6166 /* TODO: use a real VHT support indication */ 6167 if (!results->modes[m].vht_capab) 6168 continue; 6169 6170 nl80211_set_vht_mode(&results->modes[m], start, end); 6171 } 6172} 6173 6174 6175static int nl80211_get_reg(struct nl_msg *msg, void *arg) 6176{ 6177 struct phy_info_arg *results = arg; 6178 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 6179 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 6180 struct nlattr *nl_rule; 6181 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1]; 6182 int rem_rule; 6183 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 6184 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, 6185 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, 6186 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, 6187 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, 6188 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, 6189 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, 6190 }; 6191 6192 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 6193 genlmsg_attrlen(gnlh, 0), NULL); 6194 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] || 6195 !tb_msg[NL80211_ATTR_REG_RULES]) { 6196 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information " 6197 "available"); 6198 return NL_SKIP; 6199 } 6200 6201 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s", 6202 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2])); 6203 6204 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6205 { 6206 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6207 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6208 nl80211_reg_rule_ht40(tb_rule, results); 6209 nl80211_reg_rule_max_eirp(tb_rule, results); 6210 } 6211 6212 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6213 { 6214 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6215 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6216 nl80211_reg_rule_sec(tb_rule, results); 6217 } 6218 6219 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6220 { 6221 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6222 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6223 nl80211_reg_rule_vht(tb_rule, results); 6224 } 6225 6226 return NL_SKIP; 6227} 6228 6229 6230static int nl80211_set_regulatory_flags(struct wpa_driver_nl80211_data *drv, 6231 struct phy_info_arg *results) 6232{ 6233 struct nl_msg *msg; 6234 6235 msg = nlmsg_alloc(); 6236 if (!msg) 6237 return -ENOMEM; 6238 6239 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 6240 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results); 6241} 6242 6243 6244static struct hostapd_hw_modes * 6245wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags) 6246{ 6247 u32 feat; 6248 struct i802_bss *bss = priv; 6249 struct wpa_driver_nl80211_data *drv = bss->drv; 6250 struct nl_msg *msg; 6251 struct phy_info_arg result = { 6252 .num_modes = num_modes, 6253 .modes = NULL, 6254 .last_mode = -1, 6255 }; 6256 6257 *num_modes = 0; 6258 *flags = 0; 6259 6260 msg = nlmsg_alloc(); 6261 if (!msg) 6262 return NULL; 6263 6264 feat = get_nl80211_protocol_features(drv); 6265 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 6266 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 6267 else 6268 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 6269 6270 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 6271 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6272 6273 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) { 6274 nl80211_set_regulatory_flags(drv, &result); 6275 return wpa_driver_nl80211_postprocess_modes(result.modes, 6276 num_modes); 6277 } 6278 msg = NULL; 6279 nla_put_failure: 6280 nlmsg_free(msg); 6281 return NULL; 6282} 6283 6284 6285static int wpa_driver_nl80211_send_mntr(struct wpa_driver_nl80211_data *drv, 6286 const void *data, size_t len, 6287 int encrypt, int noack) 6288{ 6289 __u8 rtap_hdr[] = { 6290 0x00, 0x00, /* radiotap version */ 6291 0x0e, 0x00, /* radiotap length */ 6292 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */ 6293 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */ 6294 0x00, /* padding */ 6295 0x00, 0x00, /* RX and TX flags to indicate that */ 6296 0x00, 0x00, /* this is the injected frame directly */ 6297 }; 6298 struct iovec iov[2] = { 6299 { 6300 .iov_base = &rtap_hdr, 6301 .iov_len = sizeof(rtap_hdr), 6302 }, 6303 { 6304 .iov_base = (void *) data, 6305 .iov_len = len, 6306 } 6307 }; 6308 struct msghdr msg = { 6309 .msg_name = NULL, 6310 .msg_namelen = 0, 6311 .msg_iov = iov, 6312 .msg_iovlen = 2, 6313 .msg_control = NULL, 6314 .msg_controllen = 0, 6315 .msg_flags = 0, 6316 }; 6317 int res; 6318 u16 txflags = 0; 6319 6320 if (encrypt) 6321 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP; 6322 6323 if (drv->monitor_sock < 0) { 6324 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available " 6325 "for %s", __func__); 6326 return -1; 6327 } 6328 6329 if (noack) 6330 txflags |= IEEE80211_RADIOTAP_F_TX_NOACK; 6331 WPA_PUT_LE16(&rtap_hdr[12], txflags); 6332 6333 res = sendmsg(drv->monitor_sock, &msg, 0); 6334 if (res < 0) { 6335 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno)); 6336 return -1; 6337 } 6338 return 0; 6339} 6340 6341 6342static int wpa_driver_nl80211_send_frame(struct i802_bss *bss, 6343 const void *data, size_t len, 6344 int encrypt, int noack, 6345 unsigned int freq, int no_cck, 6346 int offchanok, unsigned int wait_time) 6347{ 6348 struct wpa_driver_nl80211_data *drv = bss->drv; 6349 u64 cookie; 6350 int res; 6351 6352 if (freq == 0) { 6353 wpa_printf(MSG_DEBUG, "nl80211: send_frame - Use bss->freq=%u", 6354 bss->freq); 6355 freq = bss->freq; 6356 } 6357 6358 if (drv->use_monitor) { 6359 wpa_printf(MSG_DEBUG, "nl80211: send_frame(freq=%u bss->freq=%u) -> send_mntr", 6360 freq, bss->freq); 6361 return wpa_driver_nl80211_send_mntr(drv, data, len, 6362 encrypt, noack); 6363 } 6364 6365 wpa_printf(MSG_DEBUG, "nl80211: send_frame -> send_frame_cmd"); 6366 res = nl80211_send_frame_cmd(bss, freq, wait_time, data, len, 6367 &cookie, no_cck, noack, offchanok); 6368 if (res == 0 && !noack) { 6369 const struct ieee80211_mgmt *mgmt; 6370 u16 fc; 6371 6372 mgmt = (const struct ieee80211_mgmt *) data; 6373 fc = le_to_host16(mgmt->frame_control); 6374 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6375 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_ACTION) { 6376 wpa_printf(MSG_MSGDUMP, 6377 "nl80211: Update send_action_cookie from 0x%llx to 0x%llx", 6378 (long long unsigned int) 6379 drv->send_action_cookie, 6380 (long long unsigned int) cookie); 6381 drv->send_action_cookie = cookie; 6382 } 6383 } 6384 6385 return res; 6386} 6387 6388 6389static int wpa_driver_nl80211_send_mlme(struct i802_bss *bss, const u8 *data, 6390 size_t data_len, int noack, 6391 unsigned int freq, int no_cck, 6392 int offchanok, 6393 unsigned int wait_time) 6394{ 6395 struct wpa_driver_nl80211_data *drv = bss->drv; 6396 struct ieee80211_mgmt *mgmt; 6397 int encrypt = 1; 6398 u16 fc; 6399 6400 mgmt = (struct ieee80211_mgmt *) data; 6401 fc = le_to_host16(mgmt->frame_control); 6402 wpa_printf(MSG_DEBUG, "nl80211: send_mlme - noack=%d freq=%u no_cck=%d offchanok=%d wait_time=%u fc=0x%x nlmode=%d", 6403 noack, freq, no_cck, offchanok, wait_time, fc, drv->nlmode); 6404 6405 if ((is_sta_interface(drv->nlmode) || 6406 drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) && 6407 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6408 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) { 6409 /* 6410 * The use of last_mgmt_freq is a bit of a hack, 6411 * but it works due to the single-threaded nature 6412 * of wpa_supplicant. 6413 */ 6414 if (freq == 0) { 6415 wpa_printf(MSG_DEBUG, "nl80211: Use last_mgmt_freq=%d", 6416 drv->last_mgmt_freq); 6417 freq = drv->last_mgmt_freq; 6418 } 6419 return nl80211_send_frame_cmd(bss, freq, 0, 6420 data, data_len, NULL, 1, noack, 6421 1); 6422 } 6423 6424 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) { 6425 if (freq == 0) { 6426 wpa_printf(MSG_DEBUG, "nl80211: Use bss->freq=%d", 6427 bss->freq); 6428 freq = bss->freq; 6429 } 6430 return nl80211_send_frame_cmd(bss, freq, 6431 (int) freq == bss->freq ? 0 : 6432 wait_time, 6433 data, data_len, 6434 &drv->send_action_cookie, 6435 no_cck, noack, offchanok); 6436 } 6437 6438 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6439 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) { 6440 /* 6441 * Only one of the authentication frame types is encrypted. 6442 * In order for static WEP encryption to work properly (i.e., 6443 * to not encrypt the frame), we need to tell mac80211 about 6444 * the frames that must not be encrypted. 6445 */ 6446 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg); 6447 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction); 6448 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3) 6449 encrypt = 0; 6450 } 6451 6452 wpa_printf(MSG_DEBUG, "nl80211: send_mlme -> send_frame"); 6453 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 6454 noack, freq, no_cck, offchanok, 6455 wait_time); 6456} 6457 6458 6459static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble, 6460 int slot, int ht_opmode, int ap_isolate, 6461 int *basic_rates) 6462{ 6463 struct wpa_driver_nl80211_data *drv = bss->drv; 6464 struct nl_msg *msg; 6465 6466 msg = nlmsg_alloc(); 6467 if (!msg) 6468 return -ENOMEM; 6469 6470 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS); 6471 6472 if (cts >= 0) 6473 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts); 6474 if (preamble >= 0) 6475 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble); 6476 if (slot >= 0) 6477 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot); 6478 if (ht_opmode >= 0) 6479 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode); 6480 if (ap_isolate >= 0) 6481 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate); 6482 6483 if (basic_rates) { 6484 u8 rates[NL80211_MAX_SUPP_RATES]; 6485 u8 rates_len = 0; 6486 int i; 6487 6488 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; 6489 i++) 6490 rates[rates_len++] = basic_rates[i] / 5; 6491 6492 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates); 6493 } 6494 6495 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 6496 6497 return send_and_recv_msgs(drv, msg, NULL, NULL); 6498 nla_put_failure: 6499 nlmsg_free(msg); 6500 return -ENOBUFS; 6501} 6502 6503 6504static int wpa_driver_nl80211_set_acl(void *priv, 6505 struct hostapd_acl_params *params) 6506{ 6507 struct i802_bss *bss = priv; 6508 struct wpa_driver_nl80211_data *drv = bss->drv; 6509 struct nl_msg *msg; 6510 struct nlattr *acl; 6511 unsigned int i; 6512 int ret = 0; 6513 6514 if (!(drv->capa.max_acl_mac_addrs)) 6515 return -ENOTSUP; 6516 6517 if (params->num_mac_acl > drv->capa.max_acl_mac_addrs) 6518 return -ENOTSUP; 6519 6520 msg = nlmsg_alloc(); 6521 if (!msg) 6522 return -ENOMEM; 6523 6524 wpa_printf(MSG_DEBUG, "nl80211: Set %s ACL (num_mac_acl=%u)", 6525 params->acl_policy ? "Accept" : "Deny", params->num_mac_acl); 6526 6527 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_MAC_ACL); 6528 6529 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6530 6531 NLA_PUT_U32(msg, NL80211_ATTR_ACL_POLICY, params->acl_policy ? 6532 NL80211_ACL_POLICY_DENY_UNLESS_LISTED : 6533 NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED); 6534 6535 acl = nla_nest_start(msg, NL80211_ATTR_MAC_ADDRS); 6536 if (acl == NULL) 6537 goto nla_put_failure; 6538 6539 for (i = 0; i < params->num_mac_acl; i++) 6540 NLA_PUT(msg, i + 1, ETH_ALEN, params->mac_acl[i].addr); 6541 6542 nla_nest_end(msg, acl); 6543 6544 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6545 msg = NULL; 6546 if (ret) { 6547 wpa_printf(MSG_DEBUG, "nl80211: Failed to set MAC ACL: %d (%s)", 6548 ret, strerror(-ret)); 6549 } 6550 6551nla_put_failure: 6552 nlmsg_free(msg); 6553 6554 return ret; 6555} 6556 6557 6558static int wpa_driver_nl80211_set_ap(void *priv, 6559 struct wpa_driver_ap_params *params) 6560{ 6561 struct i802_bss *bss = priv; 6562 struct wpa_driver_nl80211_data *drv = bss->drv; 6563 struct nl_msg *msg; 6564 u8 cmd = NL80211_CMD_NEW_BEACON; 6565 int ret; 6566 int beacon_set; 6567 int ifindex = if_nametoindex(bss->ifname); 6568 int num_suites; 6569 u32 suites[10]; 6570 u32 ver; 6571 6572 beacon_set = bss->beacon_set; 6573 6574 msg = nlmsg_alloc(); 6575 if (!msg) 6576 return -ENOMEM; 6577 6578 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)", 6579 beacon_set); 6580 if (beacon_set) 6581 cmd = NL80211_CMD_SET_BEACON; 6582 6583 nl80211_cmd(drv, msg, 0, cmd); 6584 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon head", 6585 params->head, params->head_len); 6586 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head); 6587 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon tail", 6588 params->tail, params->tail_len); 6589 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail); 6590 wpa_printf(MSG_DEBUG, "nl80211: ifindex=%d", ifindex); 6591 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 6592 wpa_printf(MSG_DEBUG, "nl80211: beacon_int=%d", params->beacon_int); 6593 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int); 6594 wpa_printf(MSG_DEBUG, "nl80211: dtim_period=%d", params->dtim_period); 6595 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period); 6596 wpa_hexdump_ascii(MSG_DEBUG, "nl80211: ssid", 6597 params->ssid, params->ssid_len); 6598 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 6599 params->ssid); 6600 if (params->proberesp && params->proberesp_len) { 6601 wpa_hexdump(MSG_DEBUG, "nl80211: proberesp (offload)", 6602 params->proberesp, params->proberesp_len); 6603 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len, 6604 params->proberesp); 6605 } 6606 switch (params->hide_ssid) { 6607 case NO_SSID_HIDING: 6608 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID not in use"); 6609 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 6610 NL80211_HIDDEN_SSID_NOT_IN_USE); 6611 break; 6612 case HIDDEN_SSID_ZERO_LEN: 6613 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero len"); 6614 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 6615 NL80211_HIDDEN_SSID_ZERO_LEN); 6616 break; 6617 case HIDDEN_SSID_ZERO_CONTENTS: 6618 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero contents"); 6619 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 6620 NL80211_HIDDEN_SSID_ZERO_CONTENTS); 6621 break; 6622 } 6623 wpa_printf(MSG_DEBUG, "nl80211: privacy=%d", params->privacy); 6624 if (params->privacy) 6625 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 6626 wpa_printf(MSG_DEBUG, "nl80211: auth_algs=0x%x", params->auth_algs); 6627 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) == 6628 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) { 6629 /* Leave out the attribute */ 6630 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED) 6631 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 6632 NL80211_AUTHTYPE_SHARED_KEY); 6633 else 6634 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 6635 NL80211_AUTHTYPE_OPEN_SYSTEM); 6636 6637 wpa_printf(MSG_DEBUG, "nl80211: wpa_version=0x%x", params->wpa_version); 6638 ver = 0; 6639 if (params->wpa_version & WPA_PROTO_WPA) 6640 ver |= NL80211_WPA_VERSION_1; 6641 if (params->wpa_version & WPA_PROTO_RSN) 6642 ver |= NL80211_WPA_VERSION_2; 6643 if (ver) 6644 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 6645 6646 wpa_printf(MSG_DEBUG, "nl80211: key_mgmt_suites=0x%x", 6647 params->key_mgmt_suites); 6648 num_suites = 0; 6649 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X) 6650 suites[num_suites++] = WLAN_AKM_SUITE_8021X; 6651 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK) 6652 suites[num_suites++] = WLAN_AKM_SUITE_PSK; 6653 if (num_suites) { 6654 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES, 6655 num_suites * sizeof(u32), suites); 6656 } 6657 6658 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X && 6659 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)) 6660 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT); 6661 6662 wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x", 6663 params->pairwise_ciphers); 6664 num_suites = 0; 6665 if (params->pairwise_ciphers & WPA_CIPHER_CCMP) 6666 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP; 6667 if (params->pairwise_ciphers & WPA_CIPHER_GCMP) 6668 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP; 6669 if (params->pairwise_ciphers & WPA_CIPHER_TKIP) 6670 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP; 6671 if (params->pairwise_ciphers & WPA_CIPHER_WEP104) 6672 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104; 6673 if (params->pairwise_ciphers & WPA_CIPHER_WEP40) 6674 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40; 6675 if (num_suites) { 6676 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, 6677 num_suites * sizeof(u32), suites); 6678 } 6679 6680 wpa_printf(MSG_DEBUG, "nl80211: group_cipher=0x%x", 6681 params->group_cipher); 6682 switch (params->group_cipher) { 6683 case WPA_CIPHER_CCMP: 6684 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6685 WLAN_CIPHER_SUITE_CCMP); 6686 break; 6687 case WPA_CIPHER_GCMP: 6688 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6689 WLAN_CIPHER_SUITE_GCMP); 6690 break; 6691 case WPA_CIPHER_TKIP: 6692 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6693 WLAN_CIPHER_SUITE_TKIP); 6694 break; 6695 case WPA_CIPHER_WEP104: 6696 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6697 WLAN_CIPHER_SUITE_WEP104); 6698 break; 6699 case WPA_CIPHER_WEP40: 6700 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6701 WLAN_CIPHER_SUITE_WEP40); 6702 break; 6703 } 6704 6705 if (params->beacon_ies) { 6706 wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies", 6707 params->beacon_ies); 6708 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies), 6709 wpabuf_head(params->beacon_ies)); 6710 } 6711 if (params->proberesp_ies) { 6712 wpa_hexdump_buf(MSG_DEBUG, "nl80211: proberesp_ies", 6713 params->proberesp_ies); 6714 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, 6715 wpabuf_len(params->proberesp_ies), 6716 wpabuf_head(params->proberesp_ies)); 6717 } 6718 if (params->assocresp_ies) { 6719 wpa_hexdump_buf(MSG_DEBUG, "nl80211: assocresp_ies", 6720 params->assocresp_ies); 6721 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP, 6722 wpabuf_len(params->assocresp_ies), 6723 wpabuf_head(params->assocresp_ies)); 6724 } 6725 6726 if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) { 6727 wpa_printf(MSG_DEBUG, "nl80211: ap_max_inactivity=%d", 6728 params->ap_max_inactivity); 6729 NLA_PUT_U16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT, 6730 params->ap_max_inactivity); 6731 } 6732 6733 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6734 if (ret) { 6735 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)", 6736 ret, strerror(-ret)); 6737 } else { 6738 bss->beacon_set = 1; 6739 nl80211_set_bss(bss, params->cts_protect, params->preamble, 6740 params->short_slot_time, params->ht_opmode, 6741 params->isolate, params->basic_rates); 6742 } 6743 return ret; 6744 nla_put_failure: 6745 nlmsg_free(msg); 6746 return -ENOBUFS; 6747} 6748 6749 6750static int wpa_driver_nl80211_set_freq(struct i802_bss *bss, 6751 struct hostapd_freq_params *freq) 6752{ 6753 struct wpa_driver_nl80211_data *drv = bss->drv; 6754 struct nl_msg *msg; 6755 int ret; 6756 6757 wpa_printf(MSG_DEBUG, "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d," 6758 " bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)", 6759 freq->freq, freq->ht_enabled, freq->vht_enabled, 6760 freq->bandwidth, freq->center_freq1, freq->center_freq2); 6761 msg = nlmsg_alloc(); 6762 if (!msg) 6763 return -1; 6764 6765 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 6766 6767 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6768 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); 6769 if (freq->vht_enabled) { 6770 switch (freq->bandwidth) { 6771 case 20: 6772 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6773 NL80211_CHAN_WIDTH_20); 6774 break; 6775 case 40: 6776 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6777 NL80211_CHAN_WIDTH_40); 6778 break; 6779 case 80: 6780 if (freq->center_freq2) 6781 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6782 NL80211_CHAN_WIDTH_80P80); 6783 else 6784 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6785 NL80211_CHAN_WIDTH_80); 6786 break; 6787 case 160: 6788 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6789 NL80211_CHAN_WIDTH_160); 6790 break; 6791 default: 6792 return -1; 6793 } 6794 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); 6795 if (freq->center_freq2) 6796 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, 6797 freq->center_freq2); 6798 } else if (freq->ht_enabled) { 6799 switch (freq->sec_channel_offset) { 6800 case -1: 6801 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6802 NL80211_CHAN_HT40MINUS); 6803 break; 6804 case 1: 6805 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6806 NL80211_CHAN_HT40PLUS); 6807 break; 6808 default: 6809 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6810 NL80211_CHAN_HT20); 6811 break; 6812 } 6813 } 6814 6815 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6816 msg = NULL; 6817 if (ret == 0) { 6818 bss->freq = freq->freq; 6819 return 0; 6820 } 6821 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): " 6822 "%d (%s)", freq->freq, ret, strerror(-ret)); 6823nla_put_failure: 6824 nlmsg_free(msg); 6825 return -1; 6826} 6827 6828 6829static u32 sta_flags_nl80211(int flags) 6830{ 6831 u32 f = 0; 6832 6833 if (flags & WPA_STA_AUTHORIZED) 6834 f |= BIT(NL80211_STA_FLAG_AUTHORIZED); 6835 if (flags & WPA_STA_WMM) 6836 f |= BIT(NL80211_STA_FLAG_WME); 6837 if (flags & WPA_STA_SHORT_PREAMBLE) 6838 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); 6839 if (flags & WPA_STA_MFP) 6840 f |= BIT(NL80211_STA_FLAG_MFP); 6841 if (flags & WPA_STA_TDLS_PEER) 6842 f |= BIT(NL80211_STA_FLAG_TDLS_PEER); 6843 6844 return f; 6845} 6846 6847 6848static int wpa_driver_nl80211_sta_add(void *priv, 6849 struct hostapd_sta_add_params *params) 6850{ 6851 struct i802_bss *bss = priv; 6852 struct wpa_driver_nl80211_data *drv = bss->drv; 6853 struct nl_msg *msg; 6854 struct nl80211_sta_flag_update upd; 6855 int ret = -ENOBUFS; 6856 6857 if ((params->flags & WPA_STA_TDLS_PEER) && 6858 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 6859 return -EOPNOTSUPP; 6860 6861 msg = nlmsg_alloc(); 6862 if (!msg) 6863 return -ENOMEM; 6864 6865 wpa_printf(MSG_DEBUG, "nl80211: %s STA " MACSTR, 6866 params->set ? "Set" : "Add", MAC2STR(params->addr)); 6867 nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION : 6868 NL80211_CMD_NEW_STATION); 6869 6870 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 6871 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr); 6872 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len, 6873 params->supp_rates); 6874 wpa_hexdump(MSG_DEBUG, " * supported rates", params->supp_rates, 6875 params->supp_rates_len); 6876 if (!params->set) { 6877 if (params->aid) { 6878 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid); 6879 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid); 6880 } else { 6881 /* 6882 * cfg80211 validates that AID is non-zero, so we have 6883 * to make this a non-zero value for the TDLS case where 6884 * a dummy STA entry is used for now. 6885 */ 6886 wpa_printf(MSG_DEBUG, " * aid=1 (TDLS workaround)"); 6887 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, 1); 6888 } 6889 wpa_printf(MSG_DEBUG, " * listen_interval=%u", 6890 params->listen_interval); 6891 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, 6892 params->listen_interval); 6893 } else if (params->aid && (params->flags & WPA_STA_TDLS_PEER)) { 6894 wpa_printf(MSG_DEBUG, " * peer_aid=%u", params->aid); 6895 NLA_PUT_U16(msg, NL80211_ATTR_PEER_AID, params->aid); 6896 } 6897 if (params->ht_capabilities) { 6898 wpa_hexdump(MSG_DEBUG, " * ht_capabilities", 6899 (u8 *) params->ht_capabilities, 6900 sizeof(*params->ht_capabilities)); 6901 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, 6902 sizeof(*params->ht_capabilities), 6903 params->ht_capabilities); 6904 } 6905 6906 if (params->vht_capabilities) { 6907 wpa_hexdump(MSG_DEBUG, " * vht_capabilities", 6908 (u8 *) params->vht_capabilities, 6909 sizeof(*params->vht_capabilities)); 6910 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, 6911 sizeof(*params->vht_capabilities), 6912 params->vht_capabilities); 6913 } 6914 6915 wpa_printf(MSG_DEBUG, " * capability=0x%x", params->capability); 6916 NLA_PUT_U16(msg, NL80211_ATTR_STA_CAPABILITY, params->capability); 6917 6918 if (params->ext_capab) { 6919 wpa_hexdump(MSG_DEBUG, " * ext_capab", 6920 params->ext_capab, params->ext_capab_len); 6921 NLA_PUT(msg, NL80211_ATTR_STA_EXT_CAPABILITY, 6922 params->ext_capab_len, params->ext_capab); 6923 } 6924 6925 os_memset(&upd, 0, sizeof(upd)); 6926 upd.mask = sta_flags_nl80211(params->flags); 6927 upd.set = upd.mask; 6928 wpa_printf(MSG_DEBUG, " * flags set=0x%x mask=0x%x", 6929 upd.set, upd.mask); 6930 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 6931 6932 if (params->flags & WPA_STA_WMM) { 6933 struct nlattr *wme = nla_nest_start(msg, NL80211_ATTR_STA_WME); 6934 6935 if (!wme) 6936 goto nla_put_failure; 6937 6938 wpa_printf(MSG_DEBUG, " * qosinfo=0x%x", params->qosinfo); 6939 NLA_PUT_U8(msg, NL80211_STA_WME_UAPSD_QUEUES, 6940 params->qosinfo & WMM_QOSINFO_STA_AC_MASK); 6941 NLA_PUT_U8(msg, NL80211_STA_WME_MAX_SP, 6942 (params->qosinfo >> WMM_QOSINFO_STA_SP_SHIFT) & 6943 WMM_QOSINFO_STA_SP_MASK); 6944 nla_nest_end(msg, wme); 6945 } 6946 6947 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6948 msg = NULL; 6949 if (ret) 6950 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION " 6951 "result: %d (%s)", params->set ? "SET" : "NEW", ret, 6952 strerror(-ret)); 6953 if (ret == -EEXIST) 6954 ret = 0; 6955 nla_put_failure: 6956 nlmsg_free(msg); 6957 return ret; 6958} 6959 6960 6961static int wpa_driver_nl80211_sta_remove(struct i802_bss *bss, const u8 *addr) 6962{ 6963 struct wpa_driver_nl80211_data *drv = bss->drv; 6964 struct nl_msg *msg; 6965 int ret; 6966 6967 msg = nlmsg_alloc(); 6968 if (!msg) 6969 return -ENOMEM; 6970 6971 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 6972 6973 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 6974 if_nametoindex(bss->ifname)); 6975 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 6976 6977 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6978 wpa_printf(MSG_DEBUG, "nl80211: sta_remove -> DEL_STATION %s " MACSTR 6979 " --> %d (%s)", 6980 bss->ifname, MAC2STR(addr), ret, strerror(-ret)); 6981 if (ret == -ENOENT) 6982 return 0; 6983 return ret; 6984 nla_put_failure: 6985 nlmsg_free(msg); 6986 return -ENOBUFS; 6987} 6988 6989 6990static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, 6991 int ifidx) 6992{ 6993 struct nl_msg *msg; 6994 6995 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx); 6996 6997 /* stop listening for EAPOL on this interface */ 6998 del_ifidx(drv, ifidx); 6999 7000 msg = nlmsg_alloc(); 7001 if (!msg) 7002 goto nla_put_failure; 7003 7004 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 7005 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx); 7006 7007 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 7008 return; 7009 msg = NULL; 7010 nla_put_failure: 7011 nlmsg_free(msg); 7012 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx); 7013} 7014 7015 7016static const char * nl80211_iftype_str(enum nl80211_iftype mode) 7017{ 7018 switch (mode) { 7019 case NL80211_IFTYPE_ADHOC: 7020 return "ADHOC"; 7021 case NL80211_IFTYPE_STATION: 7022 return "STATION"; 7023 case NL80211_IFTYPE_AP: 7024 return "AP"; 7025 case NL80211_IFTYPE_AP_VLAN: 7026 return "AP_VLAN"; 7027 case NL80211_IFTYPE_WDS: 7028 return "WDS"; 7029 case NL80211_IFTYPE_MONITOR: 7030 return "MONITOR"; 7031 case NL80211_IFTYPE_MESH_POINT: 7032 return "MESH_POINT"; 7033 case NL80211_IFTYPE_P2P_CLIENT: 7034 return "P2P_CLIENT"; 7035 case NL80211_IFTYPE_P2P_GO: 7036 return "P2P_GO"; 7037 case NL80211_IFTYPE_P2P_DEVICE: 7038 return "P2P_DEVICE"; 7039 default: 7040 return "unknown"; 7041 } 7042} 7043 7044 7045static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv, 7046 const char *ifname, 7047 enum nl80211_iftype iftype, 7048 const u8 *addr, int wds, 7049 int (*handler)(struct nl_msg *, void *), 7050 void *arg) 7051{ 7052 struct nl_msg *msg; 7053 int ifidx; 7054 int ret = -ENOBUFS; 7055 7056 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)", 7057 iftype, nl80211_iftype_str(iftype)); 7058 7059 msg = nlmsg_alloc(); 7060 if (!msg) 7061 return -1; 7062 7063 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE); 7064 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 7065 goto nla_put_failure; 7066 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname); 7067 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype); 7068 7069 if (iftype == NL80211_IFTYPE_MONITOR) { 7070 struct nlattr *flags; 7071 7072 flags = nla_nest_start(msg, NL80211_ATTR_MNTR_FLAGS); 7073 if (!flags) 7074 goto nla_put_failure; 7075 7076 NLA_PUT_FLAG(msg, NL80211_MNTR_FLAG_COOK_FRAMES); 7077 7078 nla_nest_end(msg, flags); 7079 } else if (wds) { 7080 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds); 7081 } 7082 7083 ret = send_and_recv_msgs(drv, msg, handler, arg); 7084 msg = NULL; 7085 if (ret) { 7086 nla_put_failure: 7087 nlmsg_free(msg); 7088 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)", 7089 ifname, ret, strerror(-ret)); 7090 return ret; 7091 } 7092 7093 if (iftype == NL80211_IFTYPE_P2P_DEVICE) 7094 return 0; 7095 7096 ifidx = if_nametoindex(ifname); 7097 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d", 7098 ifname, ifidx); 7099 7100 if (ifidx <= 0) 7101 return -1; 7102 7103 /* start listening for EAPOL on this interface */ 7104 add_ifidx(drv, ifidx); 7105 7106 if (addr && iftype != NL80211_IFTYPE_MONITOR && 7107 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) { 7108 nl80211_remove_iface(drv, ifidx); 7109 return -1; 7110 } 7111 7112 return ifidx; 7113} 7114 7115 7116static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv, 7117 const char *ifname, enum nl80211_iftype iftype, 7118 const u8 *addr, int wds, 7119 int (*handler)(struct nl_msg *, void *), 7120 void *arg, int use_existing) 7121{ 7122 int ret; 7123 7124 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds, handler, 7125 arg); 7126 7127 /* if error occurred and interface exists already */ 7128 if (ret == -ENFILE && if_nametoindex(ifname)) { 7129 if (use_existing) { 7130 wpa_printf(MSG_DEBUG, "nl80211: Continue using existing interface %s", 7131 ifname); 7132 return -ENFILE; 7133 } 7134 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname); 7135 7136 /* Try to remove the interface that was already there. */ 7137 nl80211_remove_iface(drv, if_nametoindex(ifname)); 7138 7139 /* Try to create the interface again */ 7140 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, 7141 wds, handler, arg); 7142 } 7143 7144 if (ret >= 0 && is_p2p_net_interface(iftype)) 7145 nl80211_disable_11b_rates(drv, ret, 1); 7146 7147 return ret; 7148} 7149 7150 7151static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok) 7152{ 7153 struct ieee80211_hdr *hdr; 7154 u16 fc; 7155 union wpa_event_data event; 7156 7157 hdr = (struct ieee80211_hdr *) buf; 7158 fc = le_to_host16(hdr->frame_control); 7159 7160 os_memset(&event, 0, sizeof(event)); 7161 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 7162 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 7163 event.tx_status.dst = hdr->addr1; 7164 event.tx_status.data = buf; 7165 event.tx_status.data_len = len; 7166 event.tx_status.ack = ok; 7167 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event); 7168} 7169 7170 7171static void from_unknown_sta(struct wpa_driver_nl80211_data *drv, 7172 u8 *buf, size_t len) 7173{ 7174 struct ieee80211_hdr *hdr = (void *)buf; 7175 u16 fc; 7176 union wpa_event_data event; 7177 7178 if (len < sizeof(*hdr)) 7179 return; 7180 7181 fc = le_to_host16(hdr->frame_control); 7182 7183 os_memset(&event, 0, sizeof(event)); 7184 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len); 7185 event.rx_from_unknown.addr = hdr->addr2; 7186 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) == 7187 (WLAN_FC_FROMDS | WLAN_FC_TODS); 7188 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 7189} 7190 7191 7192static void handle_frame(struct wpa_driver_nl80211_data *drv, 7193 u8 *buf, size_t len, int datarate, int ssi_signal) 7194{ 7195 struct ieee80211_hdr *hdr; 7196 u16 fc; 7197 union wpa_event_data event; 7198 7199 hdr = (struct ieee80211_hdr *) buf; 7200 fc = le_to_host16(hdr->frame_control); 7201 7202 switch (WLAN_FC_GET_TYPE(fc)) { 7203 case WLAN_FC_TYPE_MGMT: 7204 os_memset(&event, 0, sizeof(event)); 7205 event.rx_mgmt.frame = buf; 7206 event.rx_mgmt.frame_len = len; 7207 event.rx_mgmt.datarate = datarate; 7208 event.rx_mgmt.ssi_signal = ssi_signal; 7209 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 7210 break; 7211 case WLAN_FC_TYPE_CTRL: 7212 /* can only get here with PS-Poll frames */ 7213 wpa_printf(MSG_DEBUG, "CTRL"); 7214 from_unknown_sta(drv, buf, len); 7215 break; 7216 case WLAN_FC_TYPE_DATA: 7217 from_unknown_sta(drv, buf, len); 7218 break; 7219 } 7220} 7221 7222 7223static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx) 7224{ 7225 struct wpa_driver_nl80211_data *drv = eloop_ctx; 7226 int len; 7227 unsigned char buf[3000]; 7228 struct ieee80211_radiotap_iterator iter; 7229 int ret; 7230 int datarate = 0, ssi_signal = 0; 7231 int injected = 0, failed = 0, rxflags = 0; 7232 7233 len = recv(sock, buf, sizeof(buf), 0); 7234 if (len < 0) { 7235 wpa_printf(MSG_ERROR, "nl80211: Monitor socket recv failed: %s", 7236 strerror(errno)); 7237 return; 7238 } 7239 7240 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) { 7241 wpa_printf(MSG_INFO, "nl80211: received invalid radiotap frame"); 7242 return; 7243 } 7244 7245 while (1) { 7246 ret = ieee80211_radiotap_iterator_next(&iter); 7247 if (ret == -ENOENT) 7248 break; 7249 if (ret) { 7250 wpa_printf(MSG_INFO, "nl80211: received invalid radiotap frame (%d)", 7251 ret); 7252 return; 7253 } 7254 switch (iter.this_arg_index) { 7255 case IEEE80211_RADIOTAP_FLAGS: 7256 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS) 7257 len -= 4; 7258 break; 7259 case IEEE80211_RADIOTAP_RX_FLAGS: 7260 rxflags = 1; 7261 break; 7262 case IEEE80211_RADIOTAP_TX_FLAGS: 7263 injected = 1; 7264 failed = le_to_host16((*(uint16_t *) iter.this_arg)) & 7265 IEEE80211_RADIOTAP_F_TX_FAIL; 7266 break; 7267 case IEEE80211_RADIOTAP_DATA_RETRIES: 7268 break; 7269 case IEEE80211_RADIOTAP_CHANNEL: 7270 /* TODO: convert from freq/flags to channel number */ 7271 break; 7272 case IEEE80211_RADIOTAP_RATE: 7273 datarate = *iter.this_arg * 5; 7274 break; 7275 case IEEE80211_RADIOTAP_DBM_ANTSIGNAL: 7276 ssi_signal = (s8) *iter.this_arg; 7277 break; 7278 } 7279 } 7280 7281 if (rxflags && injected) 7282 return; 7283 7284 if (!injected) 7285 handle_frame(drv, buf + iter.max_length, 7286 len - iter.max_length, datarate, ssi_signal); 7287 else 7288 handle_tx_callback(drv->ctx, buf + iter.max_length, 7289 len - iter.max_length, !failed); 7290} 7291 7292 7293/* 7294 * we post-process the filter code later and rewrite 7295 * this to the offset to the last instruction 7296 */ 7297#define PASS 0xFF 7298#define FAIL 0xFE 7299 7300static struct sock_filter msock_filter_insns[] = { 7301 /* 7302 * do a little-endian load of the radiotap length field 7303 */ 7304 /* load lower byte into A */ 7305 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2), 7306 /* put it into X (== index register) */ 7307 BPF_STMT(BPF_MISC| BPF_TAX, 0), 7308 /* load upper byte into A */ 7309 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3), 7310 /* left-shift it by 8 */ 7311 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8), 7312 /* or with X */ 7313 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0), 7314 /* put result into X */ 7315 BPF_STMT(BPF_MISC| BPF_TAX, 0), 7316 7317 /* 7318 * Allow management frames through, this also gives us those 7319 * management frames that we sent ourselves with status 7320 */ 7321 /* load the lower byte of the IEEE 802.11 frame control field */ 7322 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7323 /* mask off frame type and version */ 7324 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF), 7325 /* accept frame if it's both 0, fall through otherwise */ 7326 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0), 7327 7328 /* 7329 * TODO: add a bit to radiotap RX flags that indicates 7330 * that the sending station is not associated, then 7331 * add a filter here that filters on our DA and that flag 7332 * to allow us to deauth frames to that bad station. 7333 * 7334 * For now allow all To DS data frames through. 7335 */ 7336 /* load the IEEE 802.11 frame control field */ 7337 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0), 7338 /* mask off frame type, version and DS status */ 7339 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03), 7340 /* accept frame if version 0, type 2 and To DS, fall through otherwise 7341 */ 7342 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0), 7343 7344#if 0 7345 /* 7346 * drop non-data frames 7347 */ 7348 /* load the lower byte of the frame control field */ 7349 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7350 /* mask off QoS bit */ 7351 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c), 7352 /* drop non-data frames */ 7353 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL), 7354#endif 7355 /* load the upper byte of the frame control field */ 7356 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1), 7357 /* mask off toDS/fromDS */ 7358 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03), 7359 /* accept WDS frames */ 7360 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0), 7361 7362 /* 7363 * add header length to index 7364 */ 7365 /* load the lower byte of the frame control field */ 7366 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7367 /* mask off QoS bit */ 7368 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80), 7369 /* right shift it by 6 to give 0 or 2 */ 7370 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6), 7371 /* add data frame header length */ 7372 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24), 7373 /* add index, was start of 802.11 header */ 7374 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), 7375 /* move to index, now start of LL header */ 7376 BPF_STMT(BPF_MISC | BPF_TAX, 0), 7377 7378 /* 7379 * Accept empty data frames, we use those for 7380 * polling activity. 7381 */ 7382 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0), 7383 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0), 7384 7385 /* 7386 * Accept EAPOL frames 7387 */ 7388 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0), 7389 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL), 7390 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4), 7391 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL), 7392 7393 /* keep these last two statements or change the code below */ 7394 /* return 0 == "DROP" */ 7395 BPF_STMT(BPF_RET | BPF_K, 0), 7396 /* return ~0 == "keep all" */ 7397 BPF_STMT(BPF_RET | BPF_K, ~0), 7398}; 7399 7400static struct sock_fprog msock_filter = { 7401 .len = ARRAY_SIZE(msock_filter_insns), 7402 .filter = msock_filter_insns, 7403}; 7404 7405 7406static int add_monitor_filter(int s) 7407{ 7408 int idx; 7409 7410 /* rewrite all PASS/FAIL jump offsets */ 7411 for (idx = 0; idx < msock_filter.len; idx++) { 7412 struct sock_filter *insn = &msock_filter_insns[idx]; 7413 7414 if (BPF_CLASS(insn->code) == BPF_JMP) { 7415 if (insn->code == (BPF_JMP|BPF_JA)) { 7416 if (insn->k == PASS) 7417 insn->k = msock_filter.len - idx - 2; 7418 else if (insn->k == FAIL) 7419 insn->k = msock_filter.len - idx - 3; 7420 } 7421 7422 if (insn->jt == PASS) 7423 insn->jt = msock_filter.len - idx - 2; 7424 else if (insn->jt == FAIL) 7425 insn->jt = msock_filter.len - idx - 3; 7426 7427 if (insn->jf == PASS) 7428 insn->jf = msock_filter.len - idx - 2; 7429 else if (insn->jf == FAIL) 7430 insn->jf = msock_filter.len - idx - 3; 7431 } 7432 } 7433 7434 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER, 7435 &msock_filter, sizeof(msock_filter))) { 7436 wpa_printf(MSG_ERROR, "nl80211: setsockopt(SO_ATTACH_FILTER) failed: %s", 7437 strerror(errno)); 7438 return -1; 7439 } 7440 7441 return 0; 7442} 7443 7444 7445static void nl80211_remove_monitor_interface( 7446 struct wpa_driver_nl80211_data *drv) 7447{ 7448 if (drv->monitor_refcount > 0) 7449 drv->monitor_refcount--; 7450 wpa_printf(MSG_DEBUG, "nl80211: Remove monitor interface: refcount=%d", 7451 drv->monitor_refcount); 7452 if (drv->monitor_refcount > 0) 7453 return; 7454 7455 if (drv->monitor_ifidx >= 0) { 7456 nl80211_remove_iface(drv, drv->monitor_ifidx); 7457 drv->monitor_ifidx = -1; 7458 } 7459 if (drv->monitor_sock >= 0) { 7460 eloop_unregister_read_sock(drv->monitor_sock); 7461 close(drv->monitor_sock); 7462 drv->monitor_sock = -1; 7463 } 7464} 7465 7466 7467static int 7468nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv) 7469{ 7470 char buf[IFNAMSIZ]; 7471 struct sockaddr_ll ll; 7472 int optval; 7473 socklen_t optlen; 7474 7475 if (drv->monitor_ifidx >= 0) { 7476 drv->monitor_refcount++; 7477 wpa_printf(MSG_DEBUG, "nl80211: Re-use existing monitor interface: refcount=%d", 7478 drv->monitor_refcount); 7479 return 0; 7480 } 7481 7482 if (os_strncmp(drv->first_bss->ifname, "p2p-", 4) == 0) { 7483 /* 7484 * P2P interface name is of the format p2p-%s-%d. For monitor 7485 * interface name corresponding to P2P GO, replace "p2p-" with 7486 * "mon-" to retain the same interface name length and to 7487 * indicate that it is a monitor interface. 7488 */ 7489 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss->ifname + 4); 7490 } else { 7491 /* Non-P2P interface with AP functionality. */ 7492 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss->ifname); 7493 } 7494 7495 buf[IFNAMSIZ - 1] = '\0'; 7496 7497 drv->monitor_ifidx = 7498 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL, 7499 0, NULL, NULL, 0); 7500 7501 if (drv->monitor_ifidx == -EOPNOTSUPP) { 7502 /* 7503 * This is backward compatibility for a few versions of 7504 * the kernel only that didn't advertise the right 7505 * attributes for the only driver that then supported 7506 * AP mode w/o monitor -- ath6kl. 7507 */ 7508 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support " 7509 "monitor interface type - try to run without it"); 7510 drv->device_ap_sme = 1; 7511 } 7512 7513 if (drv->monitor_ifidx < 0) 7514 return -1; 7515 7516 if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1)) 7517 goto error; 7518 7519 memset(&ll, 0, sizeof(ll)); 7520 ll.sll_family = AF_PACKET; 7521 ll.sll_ifindex = drv->monitor_ifidx; 7522 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)); 7523 if (drv->monitor_sock < 0) { 7524 wpa_printf(MSG_ERROR, "nl80211: socket[PF_PACKET,SOCK_RAW] failed: %s", 7525 strerror(errno)); 7526 goto error; 7527 } 7528 7529 if (add_monitor_filter(drv->monitor_sock)) { 7530 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor " 7531 "interface; do filtering in user space"); 7532 /* This works, but will cost in performance. */ 7533 } 7534 7535 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) { 7536 wpa_printf(MSG_ERROR, "nl80211: monitor socket bind failed: %s", 7537 strerror(errno)); 7538 goto error; 7539 } 7540 7541 optlen = sizeof(optval); 7542 optval = 20; 7543 if (setsockopt 7544 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) { 7545 wpa_printf(MSG_ERROR, "nl80211: Failed to set socket priority: %s", 7546 strerror(errno)); 7547 goto error; 7548 } 7549 7550 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read, 7551 drv, NULL)) { 7552 wpa_printf(MSG_INFO, "nl80211: Could not register monitor read socket"); 7553 goto error; 7554 } 7555 7556 drv->monitor_refcount++; 7557 return 0; 7558 error: 7559 nl80211_remove_monitor_interface(drv); 7560 return -1; 7561} 7562 7563 7564static int nl80211_setup_ap(struct i802_bss *bss) 7565{ 7566 struct wpa_driver_nl80211_data *drv = bss->drv; 7567 7568 wpa_printf(MSG_DEBUG, "nl80211: Setup AP(%s) - device_ap_sme=%d use_monitor=%d", 7569 bss->ifname, drv->device_ap_sme, drv->use_monitor); 7570 7571 /* 7572 * Disable Probe Request reporting unless we need it in this way for 7573 * devices that include the AP SME, in the other case (unless using 7574 * monitor iface) we'll get it through the nl_mgmt socket instead. 7575 */ 7576 if (!drv->device_ap_sme) 7577 wpa_driver_nl80211_probe_req_report(bss, 0); 7578 7579 if (!drv->device_ap_sme && !drv->use_monitor) 7580 if (nl80211_mgmt_subscribe_ap(bss)) 7581 return -1; 7582 7583 if (drv->device_ap_sme && !drv->use_monitor) 7584 if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) 7585 return -1; 7586 7587 if (!drv->device_ap_sme && drv->use_monitor && 7588 nl80211_create_monitor_interface(drv) && 7589 !drv->device_ap_sme) 7590 return -1; 7591 7592 if (drv->device_ap_sme && 7593 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) { 7594 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable " 7595 "Probe Request frame reporting in AP mode"); 7596 /* Try to survive without this */ 7597 } 7598 7599 return 0; 7600} 7601 7602 7603static void nl80211_teardown_ap(struct i802_bss *bss) 7604{ 7605 struct wpa_driver_nl80211_data *drv = bss->drv; 7606 7607 wpa_printf(MSG_DEBUG, "nl80211: Teardown AP(%s) - device_ap_sme=%d use_monitor=%d", 7608 bss->ifname, drv->device_ap_sme, drv->use_monitor); 7609 if (drv->device_ap_sme) { 7610 wpa_driver_nl80211_probe_req_report(bss, 0); 7611 if (!drv->use_monitor) 7612 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)"); 7613 } else if (drv->use_monitor) 7614 nl80211_remove_monitor_interface(drv); 7615 else 7616 nl80211_mgmt_unsubscribe(bss, "AP teardown"); 7617 7618 bss->beacon_set = 0; 7619} 7620 7621 7622static int nl80211_send_eapol_data(struct i802_bss *bss, 7623 const u8 *addr, const u8 *data, 7624 size_t data_len) 7625{ 7626 struct sockaddr_ll ll; 7627 int ret; 7628 7629 if (bss->drv->eapol_tx_sock < 0) { 7630 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL"); 7631 return -1; 7632 } 7633 7634 os_memset(&ll, 0, sizeof(ll)); 7635 ll.sll_family = AF_PACKET; 7636 ll.sll_ifindex = bss->ifindex; 7637 ll.sll_protocol = htons(ETH_P_PAE); 7638 ll.sll_halen = ETH_ALEN; 7639 os_memcpy(ll.sll_addr, addr, ETH_ALEN); 7640 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0, 7641 (struct sockaddr *) &ll, sizeof(ll)); 7642 if (ret < 0) 7643 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s", 7644 strerror(errno)); 7645 7646 return ret; 7647} 7648 7649 7650static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 7651 7652static int wpa_driver_nl80211_hapd_send_eapol( 7653 void *priv, const u8 *addr, const u8 *data, 7654 size_t data_len, int encrypt, const u8 *own_addr, u32 flags) 7655{ 7656 struct i802_bss *bss = priv; 7657 struct wpa_driver_nl80211_data *drv = bss->drv; 7658 struct ieee80211_hdr *hdr; 7659 size_t len; 7660 u8 *pos; 7661 int res; 7662 int qos = flags & WPA_STA_WMM; 7663 7664 if (drv->device_ap_sme || !drv->use_monitor) 7665 return nl80211_send_eapol_data(bss, addr, data, data_len); 7666 7667 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 + 7668 data_len; 7669 hdr = os_zalloc(len); 7670 if (hdr == NULL) { 7671 wpa_printf(MSG_INFO, "nl80211: Failed to allocate EAPOL buffer(len=%lu)", 7672 (unsigned long) len); 7673 return -1; 7674 } 7675 7676 hdr->frame_control = 7677 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA); 7678 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS); 7679 if (encrypt) 7680 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP); 7681 if (qos) { 7682 hdr->frame_control |= 7683 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4); 7684 } 7685 7686 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN); 7687 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 7688 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 7689 pos = (u8 *) (hdr + 1); 7690 7691 if (qos) { 7692 /* Set highest priority in QoS header */ 7693 pos[0] = 7; 7694 pos[1] = 0; 7695 pos += 2; 7696 } 7697 7698 memcpy(pos, rfc1042_header, sizeof(rfc1042_header)); 7699 pos += sizeof(rfc1042_header); 7700 WPA_PUT_BE16(pos, ETH_P_PAE); 7701 pos += 2; 7702 memcpy(pos, data, data_len); 7703 7704 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0, 7705 0, 0, 0, 0); 7706 if (res < 0) { 7707 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - " 7708 "failed: %d (%s)", 7709 (unsigned long) len, errno, strerror(errno)); 7710 } 7711 os_free(hdr); 7712 7713 return res; 7714} 7715 7716 7717static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr, 7718 int total_flags, 7719 int flags_or, int flags_and) 7720{ 7721 struct i802_bss *bss = priv; 7722 struct wpa_driver_nl80211_data *drv = bss->drv; 7723 struct nl_msg *msg; 7724 struct nlattr *flags; 7725 struct nl80211_sta_flag_update upd; 7726 7727 msg = nlmsg_alloc(); 7728 if (!msg) 7729 return -ENOMEM; 7730 7731 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 7732 7733 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 7734 if_nametoindex(bss->ifname)); 7735 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 7736 7737 /* 7738 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This 7739 * can be removed eventually. 7740 */ 7741 flags = nla_nest_start(msg, NL80211_ATTR_STA_FLAGS); 7742 if (!flags) 7743 goto nla_put_failure; 7744 if (total_flags & WPA_STA_AUTHORIZED) 7745 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_AUTHORIZED); 7746 7747 if (total_flags & WPA_STA_WMM) 7748 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_WME); 7749 7750 if (total_flags & WPA_STA_SHORT_PREAMBLE) 7751 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_SHORT_PREAMBLE); 7752 7753 if (total_flags & WPA_STA_MFP) 7754 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_MFP); 7755 7756 if (total_flags & WPA_STA_TDLS_PEER) 7757 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_TDLS_PEER); 7758 7759 nla_nest_end(msg, flags); 7760 7761 os_memset(&upd, 0, sizeof(upd)); 7762 upd.mask = sta_flags_nl80211(flags_or | ~flags_and); 7763 upd.set = sta_flags_nl80211(flags_or); 7764 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 7765 7766 return send_and_recv_msgs(drv, msg, NULL, NULL); 7767 nla_put_failure: 7768 nlmsg_free(msg); 7769 return -ENOBUFS; 7770} 7771 7772 7773static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv, 7774 struct wpa_driver_associate_params *params) 7775{ 7776 enum nl80211_iftype nlmode, old_mode; 7777 struct hostapd_freq_params freq = { 7778 .freq = params->freq, 7779 }; 7780 7781 if (params->p2p) { 7782 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P " 7783 "group (GO)"); 7784 nlmode = NL80211_IFTYPE_P2P_GO; 7785 } else 7786 nlmode = NL80211_IFTYPE_AP; 7787 7788 old_mode = drv->nlmode; 7789 if (wpa_driver_nl80211_set_mode(drv->first_bss, nlmode)) { 7790 nl80211_remove_monitor_interface(drv); 7791 return -1; 7792 } 7793 7794 if (wpa_driver_nl80211_set_freq(drv->first_bss, &freq)) { 7795 if (old_mode != nlmode) 7796 wpa_driver_nl80211_set_mode(drv->first_bss, old_mode); 7797 nl80211_remove_monitor_interface(drv); 7798 return -1; 7799 } 7800 7801 return 0; 7802} 7803 7804 7805static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv) 7806{ 7807 struct nl_msg *msg; 7808 int ret = -1; 7809 7810 msg = nlmsg_alloc(); 7811 if (!msg) 7812 return -1; 7813 7814 nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS); 7815 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7816 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7817 msg = NULL; 7818 if (ret) { 7819 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d " 7820 "(%s)", ret, strerror(-ret)); 7821 goto nla_put_failure; 7822 } 7823 7824 ret = 0; 7825 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully"); 7826 7827nla_put_failure: 7828 if (wpa_driver_nl80211_set_mode(drv->first_bss, 7829 NL80211_IFTYPE_STATION)) { 7830 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 7831 "station mode"); 7832 } 7833 7834 nlmsg_free(msg); 7835 return ret; 7836} 7837 7838 7839static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv, 7840 struct wpa_driver_associate_params *params) 7841{ 7842 struct nl_msg *msg; 7843 int ret = -1; 7844 int count = 0; 7845 7846 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex); 7847 7848 if (wpa_driver_nl80211_set_mode(drv->first_bss, 7849 NL80211_IFTYPE_ADHOC)) { 7850 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 7851 "IBSS mode"); 7852 return -1; 7853 } 7854 7855retry: 7856 msg = nlmsg_alloc(); 7857 if (!msg) 7858 return -1; 7859 7860 nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS); 7861 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7862 7863 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid)) 7864 goto nla_put_failure; 7865 7866 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 7867 params->ssid, params->ssid_len); 7868 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7869 params->ssid); 7870 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 7871 drv->ssid_len = params->ssid_len; 7872 7873 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 7874 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 7875 7876 ret = nl80211_set_conn_keys(params, msg); 7877 if (ret) 7878 goto nla_put_failure; 7879 7880 if (params->bssid && params->fixed_bssid) { 7881 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR, 7882 MAC2STR(params->bssid)); 7883 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 7884 } 7885 7886 if (params->key_mgmt_suite == KEY_MGMT_802_1X || 7887 params->key_mgmt_suite == KEY_MGMT_PSK || 7888 params->key_mgmt_suite == KEY_MGMT_802_1X_SHA256 || 7889 params->key_mgmt_suite == KEY_MGMT_PSK_SHA256) { 7890 wpa_printf(MSG_DEBUG, " * control port"); 7891 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 7892 } 7893 7894 if (params->wpa_ie) { 7895 wpa_hexdump(MSG_DEBUG, 7896 " * Extra IEs for Beacon/Probe Response frames", 7897 params->wpa_ie, params->wpa_ie_len); 7898 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 7899 params->wpa_ie); 7900 } 7901 7902 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7903 msg = NULL; 7904 if (ret) { 7905 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)", 7906 ret, strerror(-ret)); 7907 count++; 7908 if (ret == -EALREADY && count == 1) { 7909 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after " 7910 "forced leave"); 7911 nl80211_leave_ibss(drv); 7912 nlmsg_free(msg); 7913 goto retry; 7914 } 7915 7916 goto nla_put_failure; 7917 } 7918 ret = 0; 7919 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully"); 7920 7921nla_put_failure: 7922 nlmsg_free(msg); 7923 return ret; 7924} 7925 7926 7927static int wpa_driver_nl80211_try_connect( 7928 struct wpa_driver_nl80211_data *drv, 7929 struct wpa_driver_associate_params *params) 7930{ 7931 struct nl_msg *msg; 7932 enum nl80211_auth_type type; 7933 int ret = 0; 7934 int algs; 7935 7936 msg = nlmsg_alloc(); 7937 if (!msg) 7938 return -1; 7939 7940 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex); 7941 nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT); 7942 7943 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7944 if (params->bssid) { 7945 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 7946 MAC2STR(params->bssid)); 7947 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 7948 } 7949 if (params->freq) { 7950 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 7951 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 7952 drv->assoc_freq = params->freq; 7953 } else 7954 drv->assoc_freq = 0; 7955 if (params->bg_scan_period >= 0) { 7956 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 7957 params->bg_scan_period); 7958 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 7959 params->bg_scan_period); 7960 } 7961 if (params->ssid) { 7962 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 7963 params->ssid, params->ssid_len); 7964 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7965 params->ssid); 7966 if (params->ssid_len > sizeof(drv->ssid)) 7967 goto nla_put_failure; 7968 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 7969 drv->ssid_len = params->ssid_len; 7970 } 7971 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 7972 if (params->wpa_ie) 7973 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 7974 params->wpa_ie); 7975 7976 algs = 0; 7977 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 7978 algs++; 7979 if (params->auth_alg & WPA_AUTH_ALG_SHARED) 7980 algs++; 7981 if (params->auth_alg & WPA_AUTH_ALG_LEAP) 7982 algs++; 7983 if (algs > 1) { 7984 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic " 7985 "selection"); 7986 goto skip_auth_type; 7987 } 7988 7989 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 7990 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 7991 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 7992 type = NL80211_AUTHTYPE_SHARED_KEY; 7993 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 7994 type = NL80211_AUTHTYPE_NETWORK_EAP; 7995 else if (params->auth_alg & WPA_AUTH_ALG_FT) 7996 type = NL80211_AUTHTYPE_FT; 7997 else 7998 goto nla_put_failure; 7999 8000 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 8001 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 8002 8003skip_auth_type: 8004 if (params->wpa_proto) { 8005 enum nl80211_wpa_versions ver = 0; 8006 8007 if (params->wpa_proto & WPA_PROTO_WPA) 8008 ver |= NL80211_WPA_VERSION_1; 8009 if (params->wpa_proto & WPA_PROTO_RSN) 8010 ver |= NL80211_WPA_VERSION_2; 8011 8012 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver); 8013 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 8014 } 8015 8016 if (params->pairwise_suite != CIPHER_NONE) { 8017 int cipher; 8018 8019 switch (params->pairwise_suite) { 8020 case CIPHER_SMS4: 8021 cipher = WLAN_CIPHER_SUITE_SMS4; 8022 break; 8023 case CIPHER_WEP40: 8024 cipher = WLAN_CIPHER_SUITE_WEP40; 8025 break; 8026 case CIPHER_WEP104: 8027 cipher = WLAN_CIPHER_SUITE_WEP104; 8028 break; 8029 case CIPHER_CCMP: 8030 cipher = WLAN_CIPHER_SUITE_CCMP; 8031 break; 8032 case CIPHER_GCMP: 8033 cipher = WLAN_CIPHER_SUITE_GCMP; 8034 break; 8035 case CIPHER_TKIP: 8036 default: 8037 cipher = WLAN_CIPHER_SUITE_TKIP; 8038 break; 8039 } 8040 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); 8041 } 8042 8043 if (params->group_suite != CIPHER_NONE) { 8044 int cipher; 8045 8046 switch (params->group_suite) { 8047 case CIPHER_SMS4: 8048 cipher = WLAN_CIPHER_SUITE_SMS4; 8049 break; 8050 case CIPHER_WEP40: 8051 cipher = WLAN_CIPHER_SUITE_WEP40; 8052 break; 8053 case CIPHER_WEP104: 8054 cipher = WLAN_CIPHER_SUITE_WEP104; 8055 break; 8056 case CIPHER_CCMP: 8057 cipher = WLAN_CIPHER_SUITE_CCMP; 8058 break; 8059 case CIPHER_GCMP: 8060 cipher = WLAN_CIPHER_SUITE_GCMP; 8061 break; 8062 case CIPHER_TKIP: 8063 default: 8064 cipher = WLAN_CIPHER_SUITE_TKIP; 8065 break; 8066 } 8067 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); 8068 } 8069 8070 if (params->key_mgmt_suite == KEY_MGMT_802_1X || 8071 params->key_mgmt_suite == KEY_MGMT_PSK || 8072 params->key_mgmt_suite == KEY_MGMT_FT_802_1X || 8073 params->key_mgmt_suite == KEY_MGMT_FT_PSK || 8074 params->key_mgmt_suite == KEY_MGMT_CCKM) { 8075 int mgmt = WLAN_AKM_SUITE_PSK; 8076 8077 switch (params->key_mgmt_suite) { 8078 case KEY_MGMT_CCKM: 8079 mgmt = WLAN_AKM_SUITE_CCKM; 8080 break; 8081 case KEY_MGMT_802_1X: 8082 mgmt = WLAN_AKM_SUITE_8021X; 8083 break; 8084 case KEY_MGMT_FT_802_1X: 8085 mgmt = WLAN_AKM_SUITE_FT_8021X; 8086 break; 8087 case KEY_MGMT_FT_PSK: 8088 mgmt = WLAN_AKM_SUITE_FT_PSK; 8089 break; 8090 case KEY_MGMT_PSK: 8091 default: 8092 mgmt = WLAN_AKM_SUITE_PSK; 8093 break; 8094 } 8095 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt); 8096 } 8097 8098#ifdef CONFIG_IEEE80211W 8099 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) 8100 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); 8101#endif /* CONFIG_IEEE80211W */ 8102 8103 if (params->disable_ht) 8104 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); 8105 8106 if (params->htcaps && params->htcaps_mask) { 8107 int sz = sizeof(struct ieee80211_ht_capabilities); 8108 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); 8109 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 8110 params->htcaps_mask); 8111 } 8112 8113#ifdef CONFIG_VHT_OVERRIDES 8114 if (params->disable_vht) { 8115 wpa_printf(MSG_DEBUG, " * VHT disabled"); 8116 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT); 8117 } 8118 8119 if (params->vhtcaps && params->vhtcaps_mask) { 8120 int sz = sizeof(struct ieee80211_vht_capabilities); 8121 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps); 8122 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 8123 params->vhtcaps_mask); 8124 } 8125#endif /* CONFIG_VHT_OVERRIDES */ 8126 8127 ret = nl80211_set_conn_keys(params, msg); 8128 if (ret) 8129 goto nla_put_failure; 8130 8131 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8132 msg = NULL; 8133 if (ret) { 8134 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d " 8135 "(%s)", ret, strerror(-ret)); 8136 goto nla_put_failure; 8137 } 8138 ret = 0; 8139 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully"); 8140 8141nla_put_failure: 8142 nlmsg_free(msg); 8143 return ret; 8144 8145} 8146 8147 8148static int wpa_driver_nl80211_connect( 8149 struct wpa_driver_nl80211_data *drv, 8150 struct wpa_driver_associate_params *params) 8151{ 8152 int ret = wpa_driver_nl80211_try_connect(drv, params); 8153 if (ret == -EALREADY) { 8154 /* 8155 * cfg80211 does not currently accept new connections if 8156 * we are already connected. As a workaround, force 8157 * disconnection and try again. 8158 */ 8159 wpa_printf(MSG_DEBUG, "nl80211: Explicitly " 8160 "disconnecting before reassociation " 8161 "attempt"); 8162 if (wpa_driver_nl80211_disconnect( 8163 drv, WLAN_REASON_PREV_AUTH_NOT_VALID)) 8164 return -1; 8165 ret = wpa_driver_nl80211_try_connect(drv, params); 8166 } 8167 return ret; 8168} 8169 8170 8171static int wpa_driver_nl80211_associate( 8172 void *priv, struct wpa_driver_associate_params *params) 8173{ 8174 struct i802_bss *bss = priv; 8175 struct wpa_driver_nl80211_data *drv = bss->drv; 8176 int ret = -1; 8177 struct nl_msg *msg; 8178 8179 if (params->mode == IEEE80211_MODE_AP) 8180 return wpa_driver_nl80211_ap(drv, params); 8181 8182 if (params->mode == IEEE80211_MODE_IBSS) 8183 return wpa_driver_nl80211_ibss(drv, params); 8184 8185 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) { 8186 enum nl80211_iftype nlmode = params->p2p ? 8187 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 8188 8189 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0) 8190 return -1; 8191 return wpa_driver_nl80211_connect(drv, params); 8192 } 8193 8194 nl80211_mark_disconnected(drv); 8195 8196 msg = nlmsg_alloc(); 8197 if (!msg) 8198 return -1; 8199 8200 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)", 8201 drv->ifindex); 8202 nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE); 8203 8204 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8205 if (params->bssid) { 8206 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 8207 MAC2STR(params->bssid)); 8208 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 8209 } 8210 if (params->freq) { 8211 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 8212 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 8213 drv->assoc_freq = params->freq; 8214 } else 8215 drv->assoc_freq = 0; 8216 if (params->bg_scan_period >= 0) { 8217 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 8218 params->bg_scan_period); 8219 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 8220 params->bg_scan_period); 8221 } 8222 if (params->ssid) { 8223 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 8224 params->ssid, params->ssid_len); 8225 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 8226 params->ssid); 8227 if (params->ssid_len > sizeof(drv->ssid)) 8228 goto nla_put_failure; 8229 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 8230 drv->ssid_len = params->ssid_len; 8231 } 8232 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 8233 if (params->wpa_ie) 8234 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 8235 params->wpa_ie); 8236 8237 if (params->pairwise_suite != CIPHER_NONE) { 8238 int cipher; 8239 8240 switch (params->pairwise_suite) { 8241 case CIPHER_WEP40: 8242 cipher = WLAN_CIPHER_SUITE_WEP40; 8243 break; 8244 case CIPHER_WEP104: 8245 cipher = WLAN_CIPHER_SUITE_WEP104; 8246 break; 8247 case CIPHER_CCMP: 8248 cipher = WLAN_CIPHER_SUITE_CCMP; 8249 break; 8250 case CIPHER_GCMP: 8251 cipher = WLAN_CIPHER_SUITE_GCMP; 8252 break; 8253 case CIPHER_TKIP: 8254 default: 8255 cipher = WLAN_CIPHER_SUITE_TKIP; 8256 break; 8257 } 8258 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher); 8259 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); 8260 } 8261 8262 if (params->group_suite != CIPHER_NONE) { 8263 int cipher; 8264 8265 switch (params->group_suite) { 8266 case CIPHER_WEP40: 8267 cipher = WLAN_CIPHER_SUITE_WEP40; 8268 break; 8269 case CIPHER_WEP104: 8270 cipher = WLAN_CIPHER_SUITE_WEP104; 8271 break; 8272 case CIPHER_CCMP: 8273 cipher = WLAN_CIPHER_SUITE_CCMP; 8274 break; 8275 case CIPHER_GCMP: 8276 cipher = WLAN_CIPHER_SUITE_GCMP; 8277 break; 8278 case CIPHER_TKIP: 8279 default: 8280 cipher = WLAN_CIPHER_SUITE_TKIP; 8281 break; 8282 } 8283 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher); 8284 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); 8285 } 8286 8287#ifdef CONFIG_IEEE80211W 8288 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) 8289 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); 8290#endif /* CONFIG_IEEE80211W */ 8291 8292 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 8293 8294 if (params->prev_bssid) { 8295 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR, 8296 MAC2STR(params->prev_bssid)); 8297 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN, 8298 params->prev_bssid); 8299 } 8300 8301 if (params->disable_ht) 8302 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); 8303 8304 if (params->htcaps && params->htcaps_mask) { 8305 int sz = sizeof(struct ieee80211_ht_capabilities); 8306 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); 8307 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 8308 params->htcaps_mask); 8309 } 8310 8311#ifdef CONFIG_VHT_OVERRIDES 8312 if (params->disable_vht) { 8313 wpa_printf(MSG_DEBUG, " * VHT disabled"); 8314 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT); 8315 } 8316 8317 if (params->vhtcaps && params->vhtcaps_mask) { 8318 int sz = sizeof(struct ieee80211_vht_capabilities); 8319 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps); 8320 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 8321 params->vhtcaps_mask); 8322 } 8323#endif /* CONFIG_VHT_OVERRIDES */ 8324 8325 if (params->p2p) 8326 wpa_printf(MSG_DEBUG, " * P2P group"); 8327 8328 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8329 msg = NULL; 8330 if (ret) { 8331 wpa_dbg(drv->ctx, MSG_DEBUG, 8332 "nl80211: MLME command failed (assoc): ret=%d (%s)", 8333 ret, strerror(-ret)); 8334 nl80211_dump_scan(drv); 8335 goto nla_put_failure; 8336 } 8337 ret = 0; 8338 wpa_printf(MSG_DEBUG, "nl80211: Association request send " 8339 "successfully"); 8340 8341nla_put_failure: 8342 nlmsg_free(msg); 8343 return ret; 8344} 8345 8346 8347static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv, 8348 int ifindex, enum nl80211_iftype mode) 8349{ 8350 struct nl_msg *msg; 8351 int ret = -ENOBUFS; 8352 8353 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)", 8354 ifindex, mode, nl80211_iftype_str(mode)); 8355 8356 msg = nlmsg_alloc(); 8357 if (!msg) 8358 return -ENOMEM; 8359 8360 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE); 8361 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 8362 goto nla_put_failure; 8363 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode); 8364 8365 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8366 msg = NULL; 8367 if (!ret) 8368 return 0; 8369nla_put_failure: 8370 nlmsg_free(msg); 8371 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:" 8372 " %d (%s)", ifindex, mode, ret, strerror(-ret)); 8373 return ret; 8374} 8375 8376 8377static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 8378 enum nl80211_iftype nlmode) 8379{ 8380 struct wpa_driver_nl80211_data *drv = bss->drv; 8381 int ret = -1; 8382 int i; 8383 int was_ap = is_ap_interface(drv->nlmode); 8384 int res; 8385 8386 res = nl80211_set_mode(drv, drv->ifindex, nlmode); 8387 if (res && nlmode == nl80211_get_ifmode(bss)) 8388 res = 0; 8389 8390 if (res == 0) { 8391 drv->nlmode = nlmode; 8392 ret = 0; 8393 goto done; 8394 } 8395 8396 if (res == -ENODEV) 8397 return -1; 8398 8399 if (nlmode == drv->nlmode) { 8400 wpa_printf(MSG_DEBUG, "nl80211: Interface already in " 8401 "requested mode - ignore error"); 8402 ret = 0; 8403 goto done; /* Already in the requested mode */ 8404 } 8405 8406 /* mac80211 doesn't allow mode changes while the device is up, so 8407 * take the device down, try to set the mode again, and bring the 8408 * device back up. 8409 */ 8410 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting " 8411 "interface down"); 8412 for (i = 0; i < 10; i++) { 8413 res = i802_set_iface_flags(bss, 0); 8414 if (res == -EACCES || res == -ENODEV) 8415 break; 8416 if (res == 0) { 8417 /* Try to set the mode again while the interface is 8418 * down */ 8419 ret = nl80211_set_mode(drv, drv->ifindex, nlmode); 8420 if (ret == -EACCES) 8421 break; 8422 res = i802_set_iface_flags(bss, 1); 8423 if (res && !ret) 8424 ret = -1; 8425 else if (ret != -EBUSY) 8426 break; 8427 } else 8428 wpa_printf(MSG_DEBUG, "nl80211: Failed to set " 8429 "interface down"); 8430 os_sleep(0, 100000); 8431 } 8432 8433 if (!ret) { 8434 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while " 8435 "interface is down"); 8436 drv->nlmode = nlmode; 8437 drv->ignore_if_down_event = 1; 8438 } 8439 8440done: 8441 if (ret) { 8442 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d " 8443 "from %d failed", nlmode, drv->nlmode); 8444 return ret; 8445 } 8446 8447 if (is_p2p_net_interface(nlmode)) 8448 nl80211_disable_11b_rates(drv, drv->ifindex, 1); 8449 else if (drv->disabled_11b_rates) 8450 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 8451 8452 if (is_ap_interface(nlmode)) { 8453 nl80211_mgmt_unsubscribe(bss, "start AP"); 8454 /* Setup additional AP mode functionality if needed */ 8455 if (nl80211_setup_ap(bss)) 8456 return -1; 8457 } else if (was_ap) { 8458 /* Remove additional AP mode functionality */ 8459 nl80211_teardown_ap(bss); 8460 } else { 8461 nl80211_mgmt_unsubscribe(bss, "mode change"); 8462 } 8463 8464 if (!bss->in_deinit && !is_ap_interface(nlmode) && 8465 nl80211_mgmt_subscribe_non_ap(bss) < 0) 8466 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action " 8467 "frame processing - ignore for now"); 8468 8469 return 0; 8470} 8471 8472 8473static int wpa_driver_nl80211_get_capa(void *priv, 8474 struct wpa_driver_capa *capa) 8475{ 8476 struct i802_bss *bss = priv; 8477 struct wpa_driver_nl80211_data *drv = bss->drv; 8478 if (!drv->has_capability) 8479 return -1; 8480 os_memcpy(capa, &drv->capa, sizeof(*capa)); 8481 if (drv->extended_capa && drv->extended_capa_mask) { 8482 capa->extended_capa = drv->extended_capa; 8483 capa->extended_capa_mask = drv->extended_capa_mask; 8484 capa->extended_capa_len = drv->extended_capa_len; 8485 } 8486 8487 if ((capa->flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) && 8488 !drv->allow_p2p_device) { 8489 wpa_printf(MSG_DEBUG, "nl80211: Do not indicate P2P_DEVICE support (p2p_device=1 driver param not specified)"); 8490 capa->flags &= ~WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 8491 } 8492 8493 return 0; 8494} 8495 8496 8497static int wpa_driver_nl80211_set_operstate(void *priv, int state) 8498{ 8499 struct i802_bss *bss = priv; 8500 struct wpa_driver_nl80211_data *drv = bss->drv; 8501 8502 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)", 8503 __func__, drv->operstate, state, state ? "UP" : "DORMANT"); 8504 drv->operstate = state; 8505 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1, 8506 state ? IF_OPER_UP : IF_OPER_DORMANT); 8507} 8508 8509 8510static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized) 8511{ 8512 struct i802_bss *bss = priv; 8513 struct wpa_driver_nl80211_data *drv = bss->drv; 8514 struct nl_msg *msg; 8515 struct nl80211_sta_flag_update upd; 8516 8517 wpa_printf(MSG_DEBUG, "nl80211: Set supplicant port %sauthorized for " 8518 MACSTR, authorized ? "" : "un", MAC2STR(drv->bssid)); 8519 8520 msg = nlmsg_alloc(); 8521 if (!msg) 8522 return -ENOMEM; 8523 8524 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8525 8526 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8527 if_nametoindex(bss->ifname)); 8528 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 8529 8530 os_memset(&upd, 0, sizeof(upd)); 8531 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED); 8532 if (authorized) 8533 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED); 8534 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 8535 8536 return send_and_recv_msgs(drv, msg, NULL, NULL); 8537 nla_put_failure: 8538 nlmsg_free(msg); 8539 return -ENOBUFS; 8540} 8541 8542 8543/* Set kernel driver on given frequency (MHz) */ 8544static int i802_set_freq(void *priv, struct hostapd_freq_params *freq) 8545{ 8546 struct i802_bss *bss = priv; 8547 return wpa_driver_nl80211_set_freq(bss, freq); 8548} 8549 8550 8551#if defined(HOSTAPD) || defined(CONFIG_AP) 8552 8553static inline int min_int(int a, int b) 8554{ 8555 if (a < b) 8556 return a; 8557 return b; 8558} 8559 8560 8561static int get_key_handler(struct nl_msg *msg, void *arg) 8562{ 8563 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 8564 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 8565 8566 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 8567 genlmsg_attrlen(gnlh, 0), NULL); 8568 8569 /* 8570 * TODO: validate the key index and mac address! 8571 * Otherwise, there's a race condition as soon as 8572 * the kernel starts sending key notifications. 8573 */ 8574 8575 if (tb[NL80211_ATTR_KEY_SEQ]) 8576 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]), 8577 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6)); 8578 return NL_SKIP; 8579} 8580 8581 8582static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr, 8583 int idx, u8 *seq) 8584{ 8585 struct i802_bss *bss = priv; 8586 struct wpa_driver_nl80211_data *drv = bss->drv; 8587 struct nl_msg *msg; 8588 8589 msg = nlmsg_alloc(); 8590 if (!msg) 8591 return -ENOMEM; 8592 8593 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY); 8594 8595 if (addr) 8596 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8597 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx); 8598 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface)); 8599 8600 memset(seq, 0, 6); 8601 8602 return send_and_recv_msgs(drv, msg, get_key_handler, seq); 8603 nla_put_failure: 8604 nlmsg_free(msg); 8605 return -ENOBUFS; 8606} 8607 8608 8609static int i802_set_rts(void *priv, int rts) 8610{ 8611 struct i802_bss *bss = priv; 8612 struct wpa_driver_nl80211_data *drv = bss->drv; 8613 struct nl_msg *msg; 8614 int ret = -ENOBUFS; 8615 u32 val; 8616 8617 msg = nlmsg_alloc(); 8618 if (!msg) 8619 return -ENOMEM; 8620 8621 if (rts >= 2347) 8622 val = (u32) -1; 8623 else 8624 val = rts; 8625 8626 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8627 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8628 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val); 8629 8630 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8631 msg = NULL; 8632 if (!ret) 8633 return 0; 8634nla_put_failure: 8635 nlmsg_free(msg); 8636 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: " 8637 "%d (%s)", rts, ret, strerror(-ret)); 8638 return ret; 8639} 8640 8641 8642static int i802_set_frag(void *priv, int frag) 8643{ 8644 struct i802_bss *bss = priv; 8645 struct wpa_driver_nl80211_data *drv = bss->drv; 8646 struct nl_msg *msg; 8647 int ret = -ENOBUFS; 8648 u32 val; 8649 8650 msg = nlmsg_alloc(); 8651 if (!msg) 8652 return -ENOMEM; 8653 8654 if (frag >= 2346) 8655 val = (u32) -1; 8656 else 8657 val = frag; 8658 8659 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8660 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8661 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val); 8662 8663 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8664 msg = NULL; 8665 if (!ret) 8666 return 0; 8667nla_put_failure: 8668 nlmsg_free(msg); 8669 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold " 8670 "%d: %d (%s)", frag, ret, strerror(-ret)); 8671 return ret; 8672} 8673 8674 8675static int i802_flush(void *priv) 8676{ 8677 struct i802_bss *bss = priv; 8678 struct wpa_driver_nl80211_data *drv = bss->drv; 8679 struct nl_msg *msg; 8680 int res; 8681 8682 msg = nlmsg_alloc(); 8683 if (!msg) 8684 return -1; 8685 8686 wpa_printf(MSG_DEBUG, "nl80211: flush -> DEL_STATION %s (all)", 8687 bss->ifname); 8688 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 8689 8690 /* 8691 * XXX: FIX! this needs to flush all VLANs too 8692 */ 8693 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8694 if_nametoindex(bss->ifname)); 8695 8696 res = send_and_recv_msgs(drv, msg, NULL, NULL); 8697 if (res) { 8698 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d " 8699 "(%s)", res, strerror(-res)); 8700 } 8701 return res; 8702 nla_put_failure: 8703 nlmsg_free(msg); 8704 return -ENOBUFS; 8705} 8706 8707#endif /* HOSTAPD || CONFIG_AP */ 8708 8709 8710static int get_sta_handler(struct nl_msg *msg, void *arg) 8711{ 8712 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 8713 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 8714 struct hostap_sta_driver_data *data = arg; 8715 struct nlattr *stats[NL80211_STA_INFO_MAX + 1]; 8716 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = { 8717 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 }, 8718 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 }, 8719 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 }, 8720 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 }, 8721 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 }, 8722 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 }, 8723 }; 8724 8725 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 8726 genlmsg_attrlen(gnlh, 0), NULL); 8727 8728 /* 8729 * TODO: validate the interface and mac address! 8730 * Otherwise, there's a race condition as soon as 8731 * the kernel starts sending station notifications. 8732 */ 8733 8734 if (!tb[NL80211_ATTR_STA_INFO]) { 8735 wpa_printf(MSG_DEBUG, "sta stats missing!"); 8736 return NL_SKIP; 8737 } 8738 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX, 8739 tb[NL80211_ATTR_STA_INFO], 8740 stats_policy)) { 8741 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!"); 8742 return NL_SKIP; 8743 } 8744 8745 if (stats[NL80211_STA_INFO_INACTIVE_TIME]) 8746 data->inactive_msec = 8747 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]); 8748 if (stats[NL80211_STA_INFO_RX_BYTES]) 8749 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]); 8750 if (stats[NL80211_STA_INFO_TX_BYTES]) 8751 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]); 8752 if (stats[NL80211_STA_INFO_RX_PACKETS]) 8753 data->rx_packets = 8754 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]); 8755 if (stats[NL80211_STA_INFO_TX_PACKETS]) 8756 data->tx_packets = 8757 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]); 8758 if (stats[NL80211_STA_INFO_TX_FAILED]) 8759 data->tx_retry_failed = 8760 nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]); 8761 8762 return NL_SKIP; 8763} 8764 8765static int i802_read_sta_data(struct i802_bss *bss, 8766 struct hostap_sta_driver_data *data, 8767 const u8 *addr) 8768{ 8769 struct wpa_driver_nl80211_data *drv = bss->drv; 8770 struct nl_msg *msg; 8771 8772 os_memset(data, 0, sizeof(*data)); 8773 msg = nlmsg_alloc(); 8774 if (!msg) 8775 return -ENOMEM; 8776 8777 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 8778 8779 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8780 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 8781 8782 return send_and_recv_msgs(drv, msg, get_sta_handler, data); 8783 nla_put_failure: 8784 nlmsg_free(msg); 8785 return -ENOBUFS; 8786} 8787 8788 8789#if defined(HOSTAPD) || defined(CONFIG_AP) 8790 8791static int i802_set_tx_queue_params(void *priv, int queue, int aifs, 8792 int cw_min, int cw_max, int burst_time) 8793{ 8794 struct i802_bss *bss = priv; 8795 struct wpa_driver_nl80211_data *drv = bss->drv; 8796 struct nl_msg *msg; 8797 struct nlattr *txq, *params; 8798 8799 msg = nlmsg_alloc(); 8800 if (!msg) 8801 return -1; 8802 8803 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8804 8805 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 8806 8807 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS); 8808 if (!txq) 8809 goto nla_put_failure; 8810 8811 /* We are only sending parameters for a single TXQ at a time */ 8812 params = nla_nest_start(msg, 1); 8813 if (!params) 8814 goto nla_put_failure; 8815 8816 switch (queue) { 8817 case 0: 8818 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO); 8819 break; 8820 case 1: 8821 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI); 8822 break; 8823 case 2: 8824 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE); 8825 break; 8826 case 3: 8827 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK); 8828 break; 8829 } 8830 /* Burst time is configured in units of 0.1 msec and TXOP parameter in 8831 * 32 usec, so need to convert the value here. */ 8832 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32); 8833 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min); 8834 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max); 8835 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs); 8836 8837 nla_nest_end(msg, params); 8838 8839 nla_nest_end(msg, txq); 8840 8841 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 8842 return 0; 8843 msg = NULL; 8844 nla_put_failure: 8845 nlmsg_free(msg); 8846 return -1; 8847} 8848 8849 8850static int i802_set_sta_vlan(struct i802_bss *bss, const u8 *addr, 8851 const char *ifname, int vlan_id) 8852{ 8853 struct wpa_driver_nl80211_data *drv = bss->drv; 8854 struct nl_msg *msg; 8855 int ret = -ENOBUFS; 8856 8857 msg = nlmsg_alloc(); 8858 if (!msg) 8859 return -ENOMEM; 8860 8861 wpa_printf(MSG_DEBUG, "nl80211: %s[%d]: set_sta_vlan(" MACSTR 8862 ", ifname=%s[%d], vlan_id=%d)", 8863 bss->ifname, if_nametoindex(bss->ifname), 8864 MAC2STR(addr), ifname, if_nametoindex(ifname), vlan_id); 8865 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8866 8867 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8868 if_nametoindex(bss->ifname)); 8869 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8870 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN, 8871 if_nametoindex(ifname)); 8872 8873 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8874 msg = NULL; 8875 if (ret < 0) { 8876 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr=" 8877 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)", 8878 MAC2STR(addr), ifname, vlan_id, ret, 8879 strerror(-ret)); 8880 } 8881 nla_put_failure: 8882 nlmsg_free(msg); 8883 return ret; 8884} 8885 8886 8887static int i802_get_inact_sec(void *priv, const u8 *addr) 8888{ 8889 struct hostap_sta_driver_data data; 8890 int ret; 8891 8892 data.inactive_msec = (unsigned long) -1; 8893 ret = i802_read_sta_data(priv, &data, addr); 8894 if (ret || data.inactive_msec == (unsigned long) -1) 8895 return -1; 8896 return data.inactive_msec / 1000; 8897} 8898 8899 8900static int i802_sta_clear_stats(void *priv, const u8 *addr) 8901{ 8902#if 0 8903 /* TODO */ 8904#endif 8905 return 0; 8906} 8907 8908 8909static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, 8910 int reason) 8911{ 8912 struct i802_bss *bss = priv; 8913 struct wpa_driver_nl80211_data *drv = bss->drv; 8914 struct ieee80211_mgmt mgmt; 8915 8916 if (drv->device_ap_sme) 8917 return wpa_driver_nl80211_sta_remove(bss, addr); 8918 8919 memset(&mgmt, 0, sizeof(mgmt)); 8920 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 8921 WLAN_FC_STYPE_DEAUTH); 8922 memcpy(mgmt.da, addr, ETH_ALEN); 8923 memcpy(mgmt.sa, own_addr, ETH_ALEN); 8924 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 8925 mgmt.u.deauth.reason_code = host_to_le16(reason); 8926 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 8927 IEEE80211_HDRLEN + 8928 sizeof(mgmt.u.deauth), 0, 0, 0, 0, 8929 0); 8930} 8931 8932 8933static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr, 8934 int reason) 8935{ 8936 struct i802_bss *bss = priv; 8937 struct wpa_driver_nl80211_data *drv = bss->drv; 8938 struct ieee80211_mgmt mgmt; 8939 8940 if (drv->device_ap_sme) 8941 return wpa_driver_nl80211_sta_remove(bss, addr); 8942 8943 memset(&mgmt, 0, sizeof(mgmt)); 8944 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 8945 WLAN_FC_STYPE_DISASSOC); 8946 memcpy(mgmt.da, addr, ETH_ALEN); 8947 memcpy(mgmt.sa, own_addr, ETH_ALEN); 8948 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 8949 mgmt.u.disassoc.reason_code = host_to_le16(reason); 8950 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 8951 IEEE80211_HDRLEN + 8952 sizeof(mgmt.u.disassoc), 0, 0, 0, 0, 8953 0); 8954} 8955 8956#endif /* HOSTAPD || CONFIG_AP */ 8957 8958#ifdef HOSTAPD 8959 8960static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 8961{ 8962 int i; 8963 int *old; 8964 8965 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d", 8966 ifidx); 8967 for (i = 0; i < drv->num_if_indices; i++) { 8968 if (drv->if_indices[i] == 0) { 8969 drv->if_indices[i] = ifidx; 8970 return; 8971 } 8972 } 8973 8974 if (drv->if_indices != drv->default_if_indices) 8975 old = drv->if_indices; 8976 else 8977 old = NULL; 8978 8979 drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1, 8980 sizeof(int)); 8981 if (!drv->if_indices) { 8982 if (!old) 8983 drv->if_indices = drv->default_if_indices; 8984 else 8985 drv->if_indices = old; 8986 wpa_printf(MSG_ERROR, "Failed to reallocate memory for " 8987 "interfaces"); 8988 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx); 8989 return; 8990 } else if (!old) 8991 os_memcpy(drv->if_indices, drv->default_if_indices, 8992 sizeof(drv->default_if_indices)); 8993 drv->if_indices[drv->num_if_indices] = ifidx; 8994 drv->num_if_indices++; 8995} 8996 8997 8998static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 8999{ 9000 int i; 9001 9002 for (i = 0; i < drv->num_if_indices; i++) { 9003 if (drv->if_indices[i] == ifidx) { 9004 drv->if_indices[i] = 0; 9005 break; 9006 } 9007 } 9008} 9009 9010 9011static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 9012{ 9013 int i; 9014 9015 for (i = 0; i < drv->num_if_indices; i++) 9016 if (drv->if_indices[i] == ifidx) 9017 return 1; 9018 9019 return 0; 9020} 9021 9022 9023static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val, 9024 const char *bridge_ifname, char *ifname_wds) 9025{ 9026 struct i802_bss *bss = priv; 9027 struct wpa_driver_nl80211_data *drv = bss->drv; 9028 char name[IFNAMSIZ + 1]; 9029 9030 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid); 9031 if (ifname_wds) 9032 os_strlcpy(ifname_wds, name, IFNAMSIZ + 1); 9033 9034 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR 9035 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name); 9036 if (val) { 9037 if (!if_nametoindex(name)) { 9038 if (nl80211_create_iface(drv, name, 9039 NL80211_IFTYPE_AP_VLAN, 9040 bss->addr, 1, NULL, NULL, 0) < 9041 0) 9042 return -1; 9043 if (bridge_ifname && 9044 linux_br_add_if(drv->global->ioctl_sock, 9045 bridge_ifname, name) < 0) 9046 return -1; 9047 } 9048 if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) { 9049 wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA " 9050 "interface %s up", name); 9051 } 9052 return i802_set_sta_vlan(priv, addr, name, 0); 9053 } else { 9054 if (bridge_ifname) 9055 linux_br_del_if(drv->global->ioctl_sock, bridge_ifname, 9056 name); 9057 9058 i802_set_sta_vlan(priv, addr, bss->ifname, 0); 9059 return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN, 9060 name); 9061 } 9062} 9063 9064 9065static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx) 9066{ 9067 struct wpa_driver_nl80211_data *drv = eloop_ctx; 9068 struct sockaddr_ll lladdr; 9069 unsigned char buf[3000]; 9070 int len; 9071 socklen_t fromlen = sizeof(lladdr); 9072 9073 len = recvfrom(sock, buf, sizeof(buf), 0, 9074 (struct sockaddr *)&lladdr, &fromlen); 9075 if (len < 0) { 9076 wpa_printf(MSG_ERROR, "nl80211: EAPOL recv failed: %s", 9077 strerror(errno)); 9078 return; 9079 } 9080 9081 if (have_ifidx(drv, lladdr.sll_ifindex)) 9082 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len); 9083} 9084 9085 9086static int i802_check_bridge(struct wpa_driver_nl80211_data *drv, 9087 struct i802_bss *bss, 9088 const char *brname, const char *ifname) 9089{ 9090 int ifindex; 9091 char in_br[IFNAMSIZ]; 9092 9093 os_strlcpy(bss->brname, brname, IFNAMSIZ); 9094 ifindex = if_nametoindex(brname); 9095 if (ifindex == 0) { 9096 /* 9097 * Bridge was configured, but the bridge device does 9098 * not exist. Try to add it now. 9099 */ 9100 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) { 9101 wpa_printf(MSG_ERROR, "nl80211: Failed to add the " 9102 "bridge interface %s: %s", 9103 brname, strerror(errno)); 9104 return -1; 9105 } 9106 bss->added_bridge = 1; 9107 add_ifidx(drv, if_nametoindex(brname)); 9108 } 9109 9110 if (linux_br_get(in_br, ifname) == 0) { 9111 if (os_strcmp(in_br, brname) == 0) 9112 return 0; /* already in the bridge */ 9113 9114 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from " 9115 "bridge %s", ifname, in_br); 9116 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) < 9117 0) { 9118 wpa_printf(MSG_ERROR, "nl80211: Failed to " 9119 "remove interface %s from bridge " 9120 "%s: %s", 9121 ifname, brname, strerror(errno)); 9122 return -1; 9123 } 9124 } 9125 9126 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s", 9127 ifname, brname); 9128 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) { 9129 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s " 9130 "into bridge %s: %s", 9131 ifname, brname, strerror(errno)); 9132 return -1; 9133 } 9134 bss->added_if_into_bridge = 1; 9135 9136 return 0; 9137} 9138 9139 9140static void *i802_init(struct hostapd_data *hapd, 9141 struct wpa_init_params *params) 9142{ 9143 struct wpa_driver_nl80211_data *drv; 9144 struct i802_bss *bss; 9145 size_t i; 9146 char brname[IFNAMSIZ]; 9147 int ifindex, br_ifindex; 9148 int br_added = 0; 9149 9150 bss = wpa_driver_nl80211_init(hapd, params->ifname, 9151 params->global_priv); 9152 if (bss == NULL) 9153 return NULL; 9154 9155 drv = bss->drv; 9156 drv->nlmode = NL80211_IFTYPE_AP; 9157 drv->eapol_sock = -1; 9158 9159 if (linux_br_get(brname, params->ifname) == 0) { 9160 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s", 9161 params->ifname, brname); 9162 br_ifindex = if_nametoindex(brname); 9163 } else { 9164 brname[0] = '\0'; 9165 br_ifindex = 0; 9166 } 9167 9168 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int); 9169 drv->if_indices = drv->default_if_indices; 9170 for (i = 0; i < params->num_bridge; i++) { 9171 if (params->bridge[i]) { 9172 ifindex = if_nametoindex(params->bridge[i]); 9173 if (ifindex) 9174 add_ifidx(drv, ifindex); 9175 if (ifindex == br_ifindex) 9176 br_added = 1; 9177 } 9178 } 9179 if (!br_added && br_ifindex && 9180 (params->num_bridge == 0 || !params->bridge[0])) 9181 add_ifidx(drv, br_ifindex); 9182 9183 /* start listening for EAPOL on the default AP interface */ 9184 add_ifidx(drv, drv->ifindex); 9185 9186 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0)) 9187 goto failed; 9188 9189 if (params->bssid) { 9190 if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 9191 params->bssid)) 9192 goto failed; 9193 } 9194 9195 if (wpa_driver_nl80211_set_mode(bss, drv->nlmode)) { 9196 wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s " 9197 "into AP mode", bss->ifname); 9198 goto failed; 9199 } 9200 9201 if (params->num_bridge && params->bridge[0] && 9202 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0) 9203 goto failed; 9204 9205 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) 9206 goto failed; 9207 9208 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE)); 9209 if (drv->eapol_sock < 0) { 9210 wpa_printf(MSG_ERROR, "nl80211: socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE) failed: %s", 9211 strerror(errno)); 9212 goto failed; 9213 } 9214 9215 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL)) 9216 { 9217 wpa_printf(MSG_INFO, "nl80211: Could not register read socket for eapol"); 9218 goto failed; 9219 } 9220 9221 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 9222 params->own_addr)) 9223 goto failed; 9224 9225 memcpy(bss->addr, params->own_addr, ETH_ALEN); 9226 9227 return bss; 9228 9229failed: 9230 wpa_driver_nl80211_deinit(bss); 9231 return NULL; 9232} 9233 9234 9235static void i802_deinit(void *priv) 9236{ 9237 struct i802_bss *bss = priv; 9238 wpa_driver_nl80211_deinit(bss); 9239} 9240 9241#endif /* HOSTAPD */ 9242 9243 9244static enum nl80211_iftype wpa_driver_nl80211_if_type( 9245 enum wpa_driver_if_type type) 9246{ 9247 switch (type) { 9248 case WPA_IF_STATION: 9249 return NL80211_IFTYPE_STATION; 9250 case WPA_IF_P2P_CLIENT: 9251 case WPA_IF_P2P_GROUP: 9252 return NL80211_IFTYPE_P2P_CLIENT; 9253 case WPA_IF_AP_VLAN: 9254 return NL80211_IFTYPE_AP_VLAN; 9255 case WPA_IF_AP_BSS: 9256 return NL80211_IFTYPE_AP; 9257 case WPA_IF_P2P_GO: 9258 return NL80211_IFTYPE_P2P_GO; 9259 case WPA_IF_P2P_DEVICE: 9260 return NL80211_IFTYPE_P2P_DEVICE; 9261 } 9262 return -1; 9263} 9264 9265 9266#ifdef CONFIG_P2P 9267 9268static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr) 9269{ 9270 struct wpa_driver_nl80211_data *drv; 9271 dl_list_for_each(drv, &global->interfaces, 9272 struct wpa_driver_nl80211_data, list) { 9273 if (os_memcmp(addr, drv->first_bss->addr, ETH_ALEN) == 0) 9274 return 1; 9275 } 9276 return 0; 9277} 9278 9279 9280static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv, 9281 u8 *new_addr) 9282{ 9283 unsigned int idx; 9284 9285 if (!drv->global) 9286 return -1; 9287 9288 os_memcpy(new_addr, drv->first_bss->addr, ETH_ALEN); 9289 for (idx = 0; idx < 64; idx++) { 9290 new_addr[0] = drv->first_bss->addr[0] | 0x02; 9291 new_addr[0] ^= idx << 2; 9292 if (!nl80211_addr_in_use(drv->global, new_addr)) 9293 break; 9294 } 9295 if (idx == 64) 9296 return -1; 9297 9298 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address " 9299 MACSTR, MAC2STR(new_addr)); 9300 9301 return 0; 9302} 9303 9304#endif /* CONFIG_P2P */ 9305 9306 9307struct wdev_info { 9308 u64 wdev_id; 9309 int wdev_id_set; 9310 u8 macaddr[ETH_ALEN]; 9311}; 9312 9313static int nl80211_wdev_handler(struct nl_msg *msg, void *arg) 9314{ 9315 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9316 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9317 struct wdev_info *wi = arg; 9318 9319 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9320 genlmsg_attrlen(gnlh, 0), NULL); 9321 if (tb[NL80211_ATTR_WDEV]) { 9322 wi->wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 9323 wi->wdev_id_set = 1; 9324 } 9325 9326 if (tb[NL80211_ATTR_MAC]) 9327 os_memcpy(wi->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 9328 ETH_ALEN); 9329 9330 return NL_SKIP; 9331} 9332 9333 9334static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type, 9335 const char *ifname, const u8 *addr, 9336 void *bss_ctx, void **drv_priv, 9337 char *force_ifname, u8 *if_addr, 9338 const char *bridge, int use_existing) 9339{ 9340 enum nl80211_iftype nlmode; 9341 struct i802_bss *bss = priv; 9342 struct wpa_driver_nl80211_data *drv = bss->drv; 9343 int ifidx; 9344 int added = 1; 9345 9346 if (addr) 9347 os_memcpy(if_addr, addr, ETH_ALEN); 9348 nlmode = wpa_driver_nl80211_if_type(type); 9349 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { 9350 struct wdev_info p2pdev_info; 9351 9352 os_memset(&p2pdev_info, 0, sizeof(p2pdev_info)); 9353 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 9354 0, nl80211_wdev_handler, 9355 &p2pdev_info, use_existing); 9356 if (!p2pdev_info.wdev_id_set || ifidx != 0) { 9357 wpa_printf(MSG_ERROR, "nl80211: Failed to create a P2P Device interface %s", 9358 ifname); 9359 return -1; 9360 } 9361 9362 drv->global->if_add_wdevid = p2pdev_info.wdev_id; 9363 drv->global->if_add_wdevid_set = p2pdev_info.wdev_id_set; 9364 if (!is_zero_ether_addr(p2pdev_info.macaddr)) 9365 os_memcpy(if_addr, p2pdev_info.macaddr, ETH_ALEN); 9366 wpa_printf(MSG_DEBUG, "nl80211: New P2P Device interface %s (0x%llx) created", 9367 ifname, 9368 (long long unsigned int) p2pdev_info.wdev_id); 9369 } else { 9370 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 9371 0, NULL, NULL, use_existing); 9372 if (use_existing && ifidx == -ENFILE) { 9373 added = 0; 9374 ifidx = if_nametoindex(ifname); 9375 } else if (ifidx < 0) { 9376 return -1; 9377 } 9378 } 9379 9380 if (!addr) { 9381 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 9382 os_memcpy(if_addr, bss->addr, ETH_ALEN); 9383 else if (linux_get_ifhwaddr(drv->global->ioctl_sock, 9384 bss->ifname, if_addr) < 0) { 9385 if (added) 9386 nl80211_remove_iface(drv, ifidx); 9387 return -1; 9388 } 9389 } 9390 9391#ifdef CONFIG_P2P 9392 if (!addr && 9393 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP || 9394 type == WPA_IF_P2P_GO)) { 9395 /* Enforce unique P2P Interface Address */ 9396 u8 new_addr[ETH_ALEN]; 9397 9398 if (linux_get_ifhwaddr(drv->global->ioctl_sock, ifname, 9399 new_addr) < 0) { 9400 nl80211_remove_iface(drv, ifidx); 9401 return -1; 9402 } 9403 if (nl80211_addr_in_use(drv->global, new_addr)) { 9404 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address " 9405 "for P2P group interface"); 9406 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) { 9407 nl80211_remove_iface(drv, ifidx); 9408 return -1; 9409 } 9410 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 9411 new_addr) < 0) { 9412 nl80211_remove_iface(drv, ifidx); 9413 return -1; 9414 } 9415 } 9416 os_memcpy(if_addr, new_addr, ETH_ALEN); 9417 } 9418#endif /* CONFIG_P2P */ 9419 9420#ifdef HOSTAPD 9421 if (type == WPA_IF_AP_BSS) { 9422 struct i802_bss *new_bss = os_zalloc(sizeof(*new_bss)); 9423 if (new_bss == NULL) { 9424 if (added) 9425 nl80211_remove_iface(drv, ifidx); 9426 return -1; 9427 } 9428 9429 if (bridge && 9430 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) { 9431 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new " 9432 "interface %s to a bridge %s", 9433 ifname, bridge); 9434 if (added) 9435 nl80211_remove_iface(drv, ifidx); 9436 os_free(new_bss); 9437 return -1; 9438 } 9439 9440 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1)) 9441 { 9442 nl80211_remove_iface(drv, ifidx); 9443 os_free(new_bss); 9444 return -1; 9445 } 9446 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ); 9447 os_memcpy(new_bss->addr, if_addr, ETH_ALEN); 9448 new_bss->ifindex = ifidx; 9449 new_bss->drv = drv; 9450 new_bss->next = drv->first_bss->next; 9451 new_bss->freq = drv->first_bss->freq; 9452 new_bss->ctx = bss_ctx; 9453 new_bss->added_if = added; 9454 drv->first_bss->next = new_bss; 9455 if (drv_priv) 9456 *drv_priv = new_bss; 9457 nl80211_init_bss(new_bss); 9458 9459 /* Subscribe management frames for this WPA_IF_AP_BSS */ 9460 if (nl80211_setup_ap(new_bss)) 9461 return -1; 9462 } 9463#endif /* HOSTAPD */ 9464 9465 if (drv->global) 9466 drv->global->if_add_ifindex = ifidx; 9467 9468 return 0; 9469} 9470 9471 9472static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 9473 enum wpa_driver_if_type type, 9474 const char *ifname) 9475{ 9476 struct wpa_driver_nl80211_data *drv = bss->drv; 9477 int ifindex = if_nametoindex(ifname); 9478 9479 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d added_if=%d", 9480 __func__, type, ifname, ifindex, bss->added_if); 9481 if (ifindex > 0 && bss->added_if) 9482 nl80211_remove_iface(drv, ifindex); 9483 9484#ifdef HOSTAPD 9485 if (type != WPA_IF_AP_BSS) 9486 return 0; 9487 9488 if (bss->added_if_into_bridge) { 9489 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 9490 bss->ifname) < 0) 9491 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 9492 "interface %s from bridge %s: %s", 9493 bss->ifname, bss->brname, strerror(errno)); 9494 } 9495 if (bss->added_bridge) { 9496 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 9497 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 9498 "bridge %s: %s", 9499 bss->brname, strerror(errno)); 9500 } 9501 9502 if (bss != drv->first_bss) { 9503 struct i802_bss *tbss; 9504 9505 wpa_printf(MSG_DEBUG, "nl80211: Not the first BSS - remove it"); 9506 for (tbss = drv->first_bss; tbss; tbss = tbss->next) { 9507 if (tbss->next == bss) { 9508 tbss->next = bss->next; 9509 /* Unsubscribe management frames */ 9510 nl80211_teardown_ap(bss); 9511 nl80211_destroy_bss(bss); 9512 os_free(bss); 9513 bss = NULL; 9514 break; 9515 } 9516 } 9517 if (bss) 9518 wpa_printf(MSG_INFO, "nl80211: %s - could not find " 9519 "BSS %p in the list", __func__, bss); 9520 } else { 9521 wpa_printf(MSG_DEBUG, "nl80211: First BSS - reassign context"); 9522 nl80211_teardown_ap(bss); 9523 if (!bss->added_if && !drv->first_bss->next) 9524 wpa_driver_nl80211_del_beacon(drv); 9525 nl80211_destroy_bss(bss); 9526 if (!bss->added_if) 9527 i802_set_iface_flags(bss, 0); 9528 if (drv->first_bss->next) { 9529 drv->first_bss = drv->first_bss->next; 9530 drv->ctx = drv->first_bss->ctx; 9531 os_free(bss); 9532 } else { 9533 wpa_printf(MSG_DEBUG, "nl80211: No second BSS to reassign context to"); 9534 } 9535 } 9536#endif /* HOSTAPD */ 9537 9538 return 0; 9539} 9540 9541 9542static int cookie_handler(struct nl_msg *msg, void *arg) 9543{ 9544 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9545 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9546 u64 *cookie = arg; 9547 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9548 genlmsg_attrlen(gnlh, 0), NULL); 9549 if (tb[NL80211_ATTR_COOKIE]) 9550 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 9551 return NL_SKIP; 9552} 9553 9554 9555static int nl80211_send_frame_cmd(struct i802_bss *bss, 9556 unsigned int freq, unsigned int wait, 9557 const u8 *buf, size_t buf_len, 9558 u64 *cookie_out, int no_cck, int no_ack, 9559 int offchanok) 9560{ 9561 struct wpa_driver_nl80211_data *drv = bss->drv; 9562 struct nl_msg *msg; 9563 u64 cookie; 9564 int ret = -1; 9565 9566 msg = nlmsg_alloc(); 9567 if (!msg) 9568 return -1; 9569 9570 wpa_printf(MSG_MSGDUMP, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d " 9571 "no_ack=%d offchanok=%d", 9572 freq, wait, no_cck, no_ack, offchanok); 9573 wpa_hexdump(MSG_MSGDUMP, "CMD_FRAME", buf, buf_len); 9574 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME); 9575 9576 if (nl80211_set_iface_id(msg, bss) < 0) 9577 goto nla_put_failure; 9578 if (freq) 9579 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 9580 if (wait) 9581 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait); 9582 if (offchanok && (drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX)) 9583 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK); 9584 if (no_cck) 9585 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 9586 if (no_ack) 9587 NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK); 9588 9589 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf); 9590 9591 cookie = 0; 9592 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 9593 msg = NULL; 9594 if (ret) { 9595 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d " 9596 "(%s) (freq=%u wait=%u)", ret, strerror(-ret), 9597 freq, wait); 9598 goto nla_put_failure; 9599 } 9600 wpa_printf(MSG_MSGDUMP, "nl80211: Frame TX command accepted%s; " 9601 "cookie 0x%llx", no_ack ? " (no ACK)" : "", 9602 (long long unsigned int) cookie); 9603 9604 if (cookie_out) 9605 *cookie_out = no_ack ? (u64) -1 : cookie; 9606 9607nla_put_failure: 9608 nlmsg_free(msg); 9609 return ret; 9610} 9611 9612 9613static int wpa_driver_nl80211_send_action(struct i802_bss *bss, 9614 unsigned int freq, 9615 unsigned int wait_time, 9616 const u8 *dst, const u8 *src, 9617 const u8 *bssid, 9618 const u8 *data, size_t data_len, 9619 int no_cck) 9620{ 9621 struct wpa_driver_nl80211_data *drv = bss->drv; 9622 int ret = -1; 9623 u8 *buf; 9624 struct ieee80211_hdr *hdr; 9625 9626 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, " 9627 "freq=%u MHz wait=%d ms no_cck=%d)", 9628 drv->ifindex, freq, wait_time, no_cck); 9629 9630 buf = os_zalloc(24 + data_len); 9631 if (buf == NULL) 9632 return ret; 9633 os_memcpy(buf + 24, data, data_len); 9634 hdr = (struct ieee80211_hdr *) buf; 9635 hdr->frame_control = 9636 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION); 9637 os_memcpy(hdr->addr1, dst, ETH_ALEN); 9638 os_memcpy(hdr->addr2, src, ETH_ALEN); 9639 os_memcpy(hdr->addr3, bssid, ETH_ALEN); 9640 9641 if (is_ap_interface(drv->nlmode) && 9642 (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) || 9643 (int) freq == bss->freq || drv->device_ap_sme || 9644 !drv->use_monitor)) 9645 ret = wpa_driver_nl80211_send_mlme(bss, buf, 24 + data_len, 9646 0, freq, no_cck, 1, 9647 wait_time); 9648 else 9649 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf, 9650 24 + data_len, 9651 &drv->send_action_cookie, 9652 no_cck, 0, 1); 9653 9654 os_free(buf); 9655 return ret; 9656} 9657 9658 9659static void wpa_driver_nl80211_send_action_cancel_wait(void *priv) 9660{ 9661 struct i802_bss *bss = priv; 9662 struct wpa_driver_nl80211_data *drv = bss->drv; 9663 struct nl_msg *msg; 9664 int ret; 9665 9666 msg = nlmsg_alloc(); 9667 if (!msg) 9668 return; 9669 9670 wpa_printf(MSG_DEBUG, "nl80211: Cancel TX frame wait: cookie=0x%llx", 9671 (long long unsigned int) drv->send_action_cookie); 9672 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL); 9673 9674 if (nl80211_set_iface_id(msg, bss) < 0) 9675 goto nla_put_failure; 9676 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie); 9677 9678 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9679 msg = NULL; 9680 if (ret) 9681 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d " 9682 "(%s)", ret, strerror(-ret)); 9683 9684 nla_put_failure: 9685 nlmsg_free(msg); 9686} 9687 9688 9689static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq, 9690 unsigned int duration) 9691{ 9692 struct i802_bss *bss = priv; 9693 struct wpa_driver_nl80211_data *drv = bss->drv; 9694 struct nl_msg *msg; 9695 int ret; 9696 u64 cookie; 9697 9698 msg = nlmsg_alloc(); 9699 if (!msg) 9700 return -1; 9701 9702 nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL); 9703 9704 if (nl80211_set_iface_id(msg, bss) < 0) 9705 goto nla_put_failure; 9706 9707 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 9708 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); 9709 9710 cookie = 0; 9711 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 9712 msg = NULL; 9713 if (ret == 0) { 9714 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie " 9715 "0x%llx for freq=%u MHz duration=%u", 9716 (long long unsigned int) cookie, freq, duration); 9717 drv->remain_on_chan_cookie = cookie; 9718 drv->pending_remain_on_chan = 1; 9719 return 0; 9720 } 9721 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel " 9722 "(freq=%d duration=%u): %d (%s)", 9723 freq, duration, ret, strerror(-ret)); 9724nla_put_failure: 9725 nlmsg_free(msg); 9726 return -1; 9727} 9728 9729 9730static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv) 9731{ 9732 struct i802_bss *bss = priv; 9733 struct wpa_driver_nl80211_data *drv = bss->drv; 9734 struct nl_msg *msg; 9735 int ret; 9736 9737 if (!drv->pending_remain_on_chan) { 9738 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel " 9739 "to cancel"); 9740 return -1; 9741 } 9742 9743 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie " 9744 "0x%llx", 9745 (long long unsigned int) drv->remain_on_chan_cookie); 9746 9747 msg = nlmsg_alloc(); 9748 if (!msg) 9749 return -1; 9750 9751 nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL); 9752 9753 if (nl80211_set_iface_id(msg, bss) < 0) 9754 goto nla_put_failure; 9755 9756 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie); 9757 9758 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9759 msg = NULL; 9760 if (ret == 0) 9761 return 0; 9762 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: " 9763 "%d (%s)", ret, strerror(-ret)); 9764nla_put_failure: 9765 nlmsg_free(msg); 9766 return -1; 9767} 9768 9769 9770static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report) 9771{ 9772 struct wpa_driver_nl80211_data *drv = bss->drv; 9773 9774 if (!report) { 9775 if (bss->nl_preq && drv->device_ap_sme && 9776 is_ap_interface(drv->nlmode)) { 9777 /* 9778 * Do not disable Probe Request reporting that was 9779 * enabled in nl80211_setup_ap(). 9780 */ 9781 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of " 9782 "Probe Request reporting nl_preq=%p while " 9783 "in AP mode", bss->nl_preq); 9784 } else if (bss->nl_preq) { 9785 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request " 9786 "reporting nl_preq=%p", bss->nl_preq); 9787 nl80211_destroy_eloop_handle(&bss->nl_preq); 9788 } 9789 return 0; 9790 } 9791 9792 if (bss->nl_preq) { 9793 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting " 9794 "already on! nl_preq=%p", bss->nl_preq); 9795 return 0; 9796 } 9797 9798 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq"); 9799 if (bss->nl_preq == NULL) 9800 return -1; 9801 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request " 9802 "reporting nl_preq=%p", bss->nl_preq); 9803 9804 if (nl80211_register_frame(bss, bss->nl_preq, 9805 (WLAN_FC_TYPE_MGMT << 2) | 9806 (WLAN_FC_STYPE_PROBE_REQ << 4), 9807 NULL, 0) < 0) 9808 goto out_err; 9809 9810 nl80211_register_eloop_read(&bss->nl_preq, 9811 wpa_driver_nl80211_event_receive, 9812 bss->nl_cb); 9813 9814 return 0; 9815 9816 out_err: 9817 nl_destroy_handles(&bss->nl_preq); 9818 return -1; 9819} 9820 9821 9822static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 9823 int ifindex, int disabled) 9824{ 9825 struct nl_msg *msg; 9826 struct nlattr *bands, *band; 9827 int ret; 9828 9829 msg = nlmsg_alloc(); 9830 if (!msg) 9831 return -1; 9832 9833 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK); 9834 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 9835 9836 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES); 9837 if (!bands) 9838 goto nla_put_failure; 9839 9840 /* 9841 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything 9842 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS 9843 * rates. All 5 GHz rates are left enabled. 9844 */ 9845 band = nla_nest_start(msg, NL80211_BAND_2GHZ); 9846 if (!band) 9847 goto nla_put_failure; 9848 if (disabled) { 9849 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8, 9850 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 9851 } 9852 nla_nest_end(msg, band); 9853 9854 nla_nest_end(msg, bands); 9855 9856 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9857 msg = NULL; 9858 if (ret) { 9859 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d " 9860 "(%s)", ret, strerror(-ret)); 9861 } else 9862 drv->disabled_11b_rates = disabled; 9863 9864 return ret; 9865 9866nla_put_failure: 9867 nlmsg_free(msg); 9868 return -1; 9869} 9870 9871 9872static int wpa_driver_nl80211_deinit_ap(void *priv) 9873{ 9874 struct i802_bss *bss = priv; 9875 struct wpa_driver_nl80211_data *drv = bss->drv; 9876 if (!is_ap_interface(drv->nlmode)) 9877 return -1; 9878 wpa_driver_nl80211_del_beacon(drv); 9879 9880 /* 9881 * If the P2P GO interface was dynamically added, then it is 9882 * possible that the interface change to station is not possible. 9883 */ 9884 if (drv->nlmode == NL80211_IFTYPE_P2P_GO && bss->if_dynamic) 9885 return 0; 9886 9887 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 9888} 9889 9890 9891static int wpa_driver_nl80211_stop_ap(void *priv) 9892{ 9893 struct i802_bss *bss = priv; 9894 struct wpa_driver_nl80211_data *drv = bss->drv; 9895 if (!is_ap_interface(drv->nlmode)) 9896 return -1; 9897 wpa_driver_nl80211_del_beacon(drv); 9898 bss->beacon_set = 0; 9899 return 0; 9900} 9901 9902 9903static int wpa_driver_nl80211_deinit_p2p_cli(void *priv) 9904{ 9905 struct i802_bss *bss = priv; 9906 struct wpa_driver_nl80211_data *drv = bss->drv; 9907 if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT) 9908 return -1; 9909 9910 /* 9911 * If the P2P Client interface was dynamically added, then it is 9912 * possible that the interface change to station is not possible. 9913 */ 9914 if (bss->if_dynamic) 9915 return 0; 9916 9917 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 9918} 9919 9920 9921static void wpa_driver_nl80211_resume(void *priv) 9922{ 9923 struct i802_bss *bss = priv; 9924 9925 if (i802_set_iface_flags(bss, 1)) 9926 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on resume event"); 9927} 9928 9929 9930static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap, 9931 const u8 *ies, size_t ies_len) 9932{ 9933 struct i802_bss *bss = priv; 9934 struct wpa_driver_nl80211_data *drv = bss->drv; 9935 int ret; 9936 u8 *data, *pos; 9937 size_t data_len; 9938 const u8 *own_addr = bss->addr; 9939 9940 if (action != 1) { 9941 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action " 9942 "action %d", action); 9943 return -1; 9944 } 9945 9946 /* 9947 * Action frame payload: 9948 * Category[1] = 6 (Fast BSS Transition) 9949 * Action[1] = 1 (Fast BSS Transition Request) 9950 * STA Address 9951 * Target AP Address 9952 * FT IEs 9953 */ 9954 9955 data_len = 2 + 2 * ETH_ALEN + ies_len; 9956 data = os_malloc(data_len); 9957 if (data == NULL) 9958 return -1; 9959 pos = data; 9960 *pos++ = 0x06; /* FT Action category */ 9961 *pos++ = action; 9962 os_memcpy(pos, own_addr, ETH_ALEN); 9963 pos += ETH_ALEN; 9964 os_memcpy(pos, target_ap, ETH_ALEN); 9965 pos += ETH_ALEN; 9966 os_memcpy(pos, ies, ies_len); 9967 9968 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0, 9969 drv->bssid, own_addr, drv->bssid, 9970 data, data_len, 0); 9971 os_free(data); 9972 9973 return ret; 9974} 9975 9976 9977static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis) 9978{ 9979 struct i802_bss *bss = priv; 9980 struct wpa_driver_nl80211_data *drv = bss->drv; 9981 struct nl_msg *msg; 9982 struct nlattr *cqm; 9983 int ret = -1; 9984 9985 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d " 9986 "hysteresis=%d", threshold, hysteresis); 9987 9988 msg = nlmsg_alloc(); 9989 if (!msg) 9990 return -1; 9991 9992 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM); 9993 9994 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 9995 9996 cqm = nla_nest_start(msg, NL80211_ATTR_CQM); 9997 if (cqm == NULL) 9998 goto nla_put_failure; 9999 10000 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THOLD, threshold); 10001 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_HYST, hysteresis); 10002 nla_nest_end(msg, cqm); 10003 10004 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10005 msg = NULL; 10006 10007nla_put_failure: 10008 nlmsg_free(msg); 10009 return ret; 10010} 10011 10012 10013/* Converts nl80211_chan_width to a common format */ 10014static enum chan_width convert2width(int width) 10015{ 10016 switch (width) { 10017 case NL80211_CHAN_WIDTH_20_NOHT: 10018 return CHAN_WIDTH_20_NOHT; 10019 case NL80211_CHAN_WIDTH_20: 10020 return CHAN_WIDTH_20; 10021 case NL80211_CHAN_WIDTH_40: 10022 return CHAN_WIDTH_40; 10023 case NL80211_CHAN_WIDTH_80: 10024 return CHAN_WIDTH_80; 10025 case NL80211_CHAN_WIDTH_80P80: 10026 return CHAN_WIDTH_80P80; 10027 case NL80211_CHAN_WIDTH_160: 10028 return CHAN_WIDTH_160; 10029 } 10030 return CHAN_WIDTH_UNKNOWN; 10031} 10032 10033 10034static int get_channel_width(struct nl_msg *msg, void *arg) 10035{ 10036 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 10037 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 10038 struct wpa_signal_info *sig_change = arg; 10039 10040 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 10041 genlmsg_attrlen(gnlh, 0), NULL); 10042 10043 sig_change->center_frq1 = -1; 10044 sig_change->center_frq2 = -1; 10045 sig_change->chanwidth = CHAN_WIDTH_UNKNOWN; 10046 10047 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) { 10048 sig_change->chanwidth = convert2width( 10049 nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH])); 10050 if (tb[NL80211_ATTR_CENTER_FREQ1]) 10051 sig_change->center_frq1 = 10052 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); 10053 if (tb[NL80211_ATTR_CENTER_FREQ2]) 10054 sig_change->center_frq2 = 10055 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); 10056 } 10057 10058 return NL_SKIP; 10059} 10060 10061 10062static int nl80211_get_channel_width(struct wpa_driver_nl80211_data *drv, 10063 struct wpa_signal_info *sig) 10064{ 10065 struct nl_msg *msg; 10066 10067 msg = nlmsg_alloc(); 10068 if (!msg) 10069 return -ENOMEM; 10070 10071 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_INTERFACE); 10072 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10073 10074 return send_and_recv_msgs(drv, msg, get_channel_width, sig); 10075 10076nla_put_failure: 10077 nlmsg_free(msg); 10078 return -ENOBUFS; 10079} 10080 10081 10082static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si) 10083{ 10084 struct i802_bss *bss = priv; 10085 struct wpa_driver_nl80211_data *drv = bss->drv; 10086 int res; 10087 10088 os_memset(si, 0, sizeof(*si)); 10089 res = nl80211_get_link_signal(drv, si); 10090 if (res != 0) 10091 return res; 10092 10093 res = nl80211_get_channel_width(drv, si); 10094 if (res != 0) 10095 return res; 10096 10097 return nl80211_get_link_noise(drv, si); 10098} 10099 10100 10101static int wpa_driver_nl80211_shared_freq(void *priv) 10102{ 10103 struct i802_bss *bss = priv; 10104 struct wpa_driver_nl80211_data *drv = bss->drv; 10105 struct wpa_driver_nl80211_data *driver; 10106 int freq = 0; 10107 10108 /* 10109 * If the same PHY is in connected state with some other interface, 10110 * then retrieve the assoc freq. 10111 */ 10112 wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s", 10113 drv->phyname); 10114 10115 dl_list_for_each(driver, &drv->global->interfaces, 10116 struct wpa_driver_nl80211_data, list) { 10117 if (drv == driver || 10118 os_strcmp(drv->phyname, driver->phyname) != 0 || 10119 !driver->associated) 10120 continue; 10121 10122 wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s " 10123 MACSTR, 10124 driver->phyname, driver->first_bss->ifname, 10125 MAC2STR(driver->first_bss->addr)); 10126 if (is_ap_interface(driver->nlmode)) 10127 freq = driver->first_bss->freq; 10128 else 10129 freq = nl80211_get_assoc_freq(driver); 10130 wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d", 10131 drv->phyname, freq); 10132 } 10133 10134 if (!freq) 10135 wpa_printf(MSG_DEBUG, "nl80211: No shared interface for " 10136 "PHY (%s) in associated state", drv->phyname); 10137 10138 return freq; 10139} 10140 10141 10142static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len, 10143 int encrypt) 10144{ 10145 struct i802_bss *bss = priv; 10146 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0, 10147 0, 0, 0, 0); 10148} 10149 10150 10151static int nl80211_set_param(void *priv, const char *param) 10152{ 10153 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param); 10154 if (param == NULL) 10155 return 0; 10156 10157#ifdef CONFIG_P2P 10158 if (os_strstr(param, "use_p2p_group_interface=1")) { 10159 struct i802_bss *bss = priv; 10160 struct wpa_driver_nl80211_data *drv = bss->drv; 10161 10162 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 10163 "interface"); 10164 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 10165 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 10166 } 10167 10168 if (os_strstr(param, "p2p_device=1")) { 10169 struct i802_bss *bss = priv; 10170 struct wpa_driver_nl80211_data *drv = bss->drv; 10171 drv->allow_p2p_device = 1; 10172 } 10173#endif /* CONFIG_P2P */ 10174 10175 return 0; 10176} 10177 10178 10179static void * nl80211_global_init(void) 10180{ 10181 struct nl80211_global *global; 10182 struct netlink_config *cfg; 10183 10184 global = os_zalloc(sizeof(*global)); 10185 if (global == NULL) 10186 return NULL; 10187 global->ioctl_sock = -1; 10188 dl_list_init(&global->interfaces); 10189 global->if_add_ifindex = -1; 10190 10191 cfg = os_zalloc(sizeof(*cfg)); 10192 if (cfg == NULL) 10193 goto err; 10194 10195 cfg->ctx = global; 10196 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink; 10197 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink; 10198 global->netlink = netlink_init(cfg); 10199 if (global->netlink == NULL) { 10200 os_free(cfg); 10201 goto err; 10202 } 10203 10204 if (wpa_driver_nl80211_init_nl_global(global) < 0) 10205 goto err; 10206 10207 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0); 10208 if (global->ioctl_sock < 0) { 10209 wpa_printf(MSG_ERROR, "nl80211: socket(PF_INET,SOCK_DGRAM) failed: %s", 10210 strerror(errno)); 10211 goto err; 10212 } 10213 10214 return global; 10215 10216err: 10217 nl80211_global_deinit(global); 10218 return NULL; 10219} 10220 10221 10222static void nl80211_global_deinit(void *priv) 10223{ 10224 struct nl80211_global *global = priv; 10225 if (global == NULL) 10226 return; 10227 if (!dl_list_empty(&global->interfaces)) { 10228 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at " 10229 "nl80211_global_deinit", 10230 dl_list_len(&global->interfaces)); 10231 } 10232 10233 if (global->netlink) 10234 netlink_deinit(global->netlink); 10235 10236 nl_destroy_handles(&global->nl); 10237 10238 if (global->nl_event) 10239 nl80211_destroy_eloop_handle(&global->nl_event); 10240 10241 nl_cb_put(global->nl_cb); 10242 10243 if (global->ioctl_sock >= 0) 10244 close(global->ioctl_sock); 10245 10246 os_free(global); 10247} 10248 10249 10250static const char * nl80211_get_radio_name(void *priv) 10251{ 10252 struct i802_bss *bss = priv; 10253 struct wpa_driver_nl80211_data *drv = bss->drv; 10254 return drv->phyname; 10255} 10256 10257 10258static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid, 10259 const u8 *pmkid) 10260{ 10261 struct nl_msg *msg; 10262 10263 msg = nlmsg_alloc(); 10264 if (!msg) 10265 return -ENOMEM; 10266 10267 nl80211_cmd(bss->drv, msg, 0, cmd); 10268 10269 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 10270 if (pmkid) 10271 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid); 10272 if (bssid) 10273 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); 10274 10275 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 10276 nla_put_failure: 10277 nlmsg_free(msg); 10278 return -ENOBUFS; 10279} 10280 10281 10282static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 10283{ 10284 struct i802_bss *bss = priv; 10285 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid)); 10286 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid); 10287} 10288 10289 10290static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 10291{ 10292 struct i802_bss *bss = priv; 10293 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR, 10294 MAC2STR(bssid)); 10295 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid); 10296} 10297 10298 10299static int nl80211_flush_pmkid(void *priv) 10300{ 10301 struct i802_bss *bss = priv; 10302 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs"); 10303 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL); 10304} 10305 10306 10307static void clean_survey_results(struct survey_results *survey_results) 10308{ 10309 struct freq_survey *survey, *tmp; 10310 10311 if (dl_list_empty(&survey_results->survey_list)) 10312 return; 10313 10314 dl_list_for_each_safe(survey, tmp, &survey_results->survey_list, 10315 struct freq_survey, list) { 10316 dl_list_del(&survey->list); 10317 os_free(survey); 10318 } 10319} 10320 10321 10322static void add_survey(struct nlattr **sinfo, u32 ifidx, 10323 struct dl_list *survey_list) 10324{ 10325 struct freq_survey *survey; 10326 10327 survey = os_zalloc(sizeof(struct freq_survey)); 10328 if (!survey) 10329 return; 10330 10331 survey->ifidx = ifidx; 10332 survey->freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); 10333 survey->filled = 0; 10334 10335 if (sinfo[NL80211_SURVEY_INFO_NOISE]) { 10336 survey->nf = (int8_t) 10337 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 10338 survey->filled |= SURVEY_HAS_NF; 10339 } 10340 10341 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]) { 10342 survey->channel_time = 10343 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]); 10344 survey->filled |= SURVEY_HAS_CHAN_TIME; 10345 } 10346 10347 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]) { 10348 survey->channel_time_busy = 10349 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]); 10350 survey->filled |= SURVEY_HAS_CHAN_TIME_BUSY; 10351 } 10352 10353 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]) { 10354 survey->channel_time_rx = 10355 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]); 10356 survey->filled |= SURVEY_HAS_CHAN_TIME_RX; 10357 } 10358 10359 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]) { 10360 survey->channel_time_tx = 10361 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]); 10362 survey->filled |= SURVEY_HAS_CHAN_TIME_TX; 10363 } 10364 10365 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)", 10366 survey->freq, 10367 survey->nf, 10368 (unsigned long int) survey->channel_time, 10369 (unsigned long int) survey->channel_time_busy, 10370 (unsigned long int) survey->channel_time_tx, 10371 (unsigned long int) survey->channel_time_rx, 10372 survey->filled); 10373 10374 dl_list_add_tail(survey_list, &survey->list); 10375} 10376 10377 10378static int check_survey_ok(struct nlattr **sinfo, u32 surveyed_freq, 10379 unsigned int freq_filter) 10380{ 10381 if (!freq_filter) 10382 return 1; 10383 10384 return freq_filter == surveyed_freq; 10385} 10386 10387 10388static int survey_handler(struct nl_msg *msg, void *arg) 10389{ 10390 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 10391 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 10392 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 10393 struct survey_results *survey_results; 10394 u32 surveyed_freq = 0; 10395 u32 ifidx; 10396 10397 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 10398 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 10399 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 10400 }; 10401 10402 survey_results = (struct survey_results *) arg; 10403 10404 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 10405 genlmsg_attrlen(gnlh, 0), NULL); 10406 10407 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 10408 10409 if (!tb[NL80211_ATTR_SURVEY_INFO]) 10410 return NL_SKIP; 10411 10412 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 10413 tb[NL80211_ATTR_SURVEY_INFO], 10414 survey_policy)) 10415 return NL_SKIP; 10416 10417 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) { 10418 wpa_printf(MSG_ERROR, "nl80211: Invalid survey data"); 10419 return NL_SKIP; 10420 } 10421 10422 surveyed_freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); 10423 10424 if (!check_survey_ok(sinfo, surveyed_freq, 10425 survey_results->freq_filter)) 10426 return NL_SKIP; 10427 10428 if (survey_results->freq_filter && 10429 survey_results->freq_filter != surveyed_freq) { 10430 wpa_printf(MSG_EXCESSIVE, "nl80211: Ignoring survey data for freq %d MHz", 10431 surveyed_freq); 10432 return NL_SKIP; 10433 } 10434 10435 add_survey(sinfo, ifidx, &survey_results->survey_list); 10436 10437 return NL_SKIP; 10438} 10439 10440 10441static int wpa_driver_nl80211_get_survey(void *priv, unsigned int freq) 10442{ 10443 struct i802_bss *bss = priv; 10444 struct wpa_driver_nl80211_data *drv = bss->drv; 10445 struct nl_msg *msg; 10446 int err = -ENOBUFS; 10447 union wpa_event_data data; 10448 struct survey_results *survey_results; 10449 10450 os_memset(&data, 0, sizeof(data)); 10451 survey_results = &data.survey_results; 10452 10453 dl_list_init(&survey_results->survey_list); 10454 10455 msg = nlmsg_alloc(); 10456 if (!msg) 10457 goto nla_put_failure; 10458 10459 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 10460 10461 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10462 10463 if (freq) 10464 data.survey_results.freq_filter = freq; 10465 10466 do { 10467 wpa_printf(MSG_DEBUG, "nl80211: Fetch survey data"); 10468 err = send_and_recv_msgs(drv, msg, survey_handler, 10469 survey_results); 10470 } while (err > 0); 10471 10472 if (err) { 10473 wpa_printf(MSG_ERROR, "nl80211: Failed to process survey data"); 10474 goto out_clean; 10475 } 10476 10477 wpa_supplicant_event(drv->ctx, EVENT_SURVEY, &data); 10478 10479out_clean: 10480 clean_survey_results(survey_results); 10481nla_put_failure: 10482 return err; 10483} 10484 10485 10486static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck, 10487 const u8 *replay_ctr) 10488{ 10489 struct i802_bss *bss = priv; 10490 struct wpa_driver_nl80211_data *drv = bss->drv; 10491 struct nlattr *replay_nested; 10492 struct nl_msg *msg; 10493 10494 msg = nlmsg_alloc(); 10495 if (!msg) 10496 return; 10497 10498 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD); 10499 10500 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10501 10502 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); 10503 if (!replay_nested) 10504 goto nla_put_failure; 10505 10506 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek); 10507 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck); 10508 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN, 10509 replay_ctr); 10510 10511 nla_nest_end(msg, replay_nested); 10512 10513 send_and_recv_msgs(drv, msg, NULL, NULL); 10514 return; 10515 nla_put_failure: 10516 nlmsg_free(msg); 10517} 10518 10519 10520static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr, 10521 const u8 *addr, int qos) 10522{ 10523 /* send data frame to poll STA and check whether 10524 * this frame is ACKed */ 10525 struct { 10526 struct ieee80211_hdr hdr; 10527 u16 qos_ctl; 10528 } STRUCT_PACKED nulldata; 10529 size_t size; 10530 10531 /* Send data frame to poll STA and check whether this frame is ACKed */ 10532 10533 os_memset(&nulldata, 0, sizeof(nulldata)); 10534 10535 if (qos) { 10536 nulldata.hdr.frame_control = 10537 IEEE80211_FC(WLAN_FC_TYPE_DATA, 10538 WLAN_FC_STYPE_QOS_NULL); 10539 size = sizeof(nulldata); 10540 } else { 10541 nulldata.hdr.frame_control = 10542 IEEE80211_FC(WLAN_FC_TYPE_DATA, 10543 WLAN_FC_STYPE_NULLFUNC); 10544 size = sizeof(struct ieee80211_hdr); 10545 } 10546 10547 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS); 10548 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN); 10549 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 10550 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 10551 10552 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0, 0, 0, 10553 0, 0) < 0) 10554 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to " 10555 "send poll frame"); 10556} 10557 10558static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr, 10559 int qos) 10560{ 10561 struct i802_bss *bss = priv; 10562 struct wpa_driver_nl80211_data *drv = bss->drv; 10563 struct nl_msg *msg; 10564 10565 if (!drv->poll_command_supported) { 10566 nl80211_send_null_frame(bss, own_addr, addr, qos); 10567 return; 10568 } 10569 10570 msg = nlmsg_alloc(); 10571 if (!msg) 10572 return; 10573 10574 nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT); 10575 10576 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10577 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 10578 10579 send_and_recv_msgs(drv, msg, NULL, NULL); 10580 return; 10581 nla_put_failure: 10582 nlmsg_free(msg); 10583} 10584 10585 10586static int nl80211_set_power_save(struct i802_bss *bss, int enabled) 10587{ 10588 struct nl_msg *msg; 10589 10590 msg = nlmsg_alloc(); 10591 if (!msg) 10592 return -ENOMEM; 10593 10594 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE); 10595 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10596 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, 10597 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED); 10598 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 10599nla_put_failure: 10600 nlmsg_free(msg); 10601 return -ENOBUFS; 10602} 10603 10604 10605static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps, 10606 int ctwindow) 10607{ 10608 struct i802_bss *bss = priv; 10609 10610 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d " 10611 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow); 10612 10613 if (opp_ps != -1 || ctwindow != -1) 10614#ifdef ANDROID_P2P 10615 wpa_driver_set_p2p_ps(priv, legacy_ps, opp_ps, ctwindow); 10616#else 10617 return -1; /* Not yet supported */ 10618#endif 10619 10620 if (legacy_ps == -1) 10621 return 0; 10622 if (legacy_ps != 0 && legacy_ps != 1) 10623 return -1; /* Not yet supported */ 10624 10625 return nl80211_set_power_save(bss, legacy_ps); 10626} 10627 10628 10629static int nl80211_start_radar_detection(void *priv, 10630 struct hostapd_freq_params *freq) 10631{ 10632 struct i802_bss *bss = priv; 10633 struct wpa_driver_nl80211_data *drv = bss->drv; 10634 struct nl_msg *msg; 10635 int ret; 10636 10637 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)", 10638 freq->freq, freq->ht_enabled, freq->vht_enabled, 10639 freq->bandwidth, freq->center_freq1, freq->center_freq2); 10640 10641 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_RADAR)) { 10642 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support radar " 10643 "detection"); 10644 return -1; 10645 } 10646 10647 msg = nlmsg_alloc(); 10648 if (!msg) 10649 return -1; 10650 10651 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_RADAR_DETECT); 10652 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10653 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); 10654 10655 if (freq->vht_enabled) { 10656 switch (freq->bandwidth) { 10657 case 20: 10658 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 10659 NL80211_CHAN_WIDTH_20); 10660 break; 10661 case 40: 10662 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 10663 NL80211_CHAN_WIDTH_40); 10664 break; 10665 case 80: 10666 if (freq->center_freq2) 10667 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 10668 NL80211_CHAN_WIDTH_80P80); 10669 else 10670 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 10671 NL80211_CHAN_WIDTH_80); 10672 break; 10673 case 160: 10674 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 10675 NL80211_CHAN_WIDTH_160); 10676 break; 10677 default: 10678 return -1; 10679 } 10680 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); 10681 if (freq->center_freq2) 10682 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, 10683 freq->center_freq2); 10684 } else if (freq->ht_enabled) { 10685 switch (freq->sec_channel_offset) { 10686 case -1: 10687 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 10688 NL80211_CHAN_HT40MINUS); 10689 break; 10690 case 1: 10691 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 10692 NL80211_CHAN_HT40PLUS); 10693 break; 10694 default: 10695 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 10696 NL80211_CHAN_HT20); 10697 break; 10698 } 10699 } 10700 10701 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10702 if (ret == 0) 10703 return 0; 10704 wpa_printf(MSG_DEBUG, "nl80211: Failed to start radar detection: " 10705 "%d (%s)", ret, strerror(-ret)); 10706nla_put_failure: 10707 return -1; 10708} 10709 10710#ifdef CONFIG_TDLS 10711 10712static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code, 10713 u8 dialog_token, u16 status_code, 10714 const u8 *buf, size_t len) 10715{ 10716 struct i802_bss *bss = priv; 10717 struct wpa_driver_nl80211_data *drv = bss->drv; 10718 struct nl_msg *msg; 10719 10720 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 10721 return -EOPNOTSUPP; 10722 10723 if (!dst) 10724 return -EINVAL; 10725 10726 msg = nlmsg_alloc(); 10727 if (!msg) 10728 return -ENOMEM; 10729 10730 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT); 10731 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10732 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); 10733 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code); 10734 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token); 10735 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code); 10736 NLA_PUT(msg, NL80211_ATTR_IE, len, buf); 10737 10738 return send_and_recv_msgs(drv, msg, NULL, NULL); 10739 10740nla_put_failure: 10741 nlmsg_free(msg); 10742 return -ENOBUFS; 10743} 10744 10745 10746static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer) 10747{ 10748 struct i802_bss *bss = priv; 10749 struct wpa_driver_nl80211_data *drv = bss->drv; 10750 struct nl_msg *msg; 10751 enum nl80211_tdls_operation nl80211_oper; 10752 10753 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 10754 return -EOPNOTSUPP; 10755 10756 switch (oper) { 10757 case TDLS_DISCOVERY_REQ: 10758 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ; 10759 break; 10760 case TDLS_SETUP: 10761 nl80211_oper = NL80211_TDLS_SETUP; 10762 break; 10763 case TDLS_TEARDOWN: 10764 nl80211_oper = NL80211_TDLS_TEARDOWN; 10765 break; 10766 case TDLS_ENABLE_LINK: 10767 nl80211_oper = NL80211_TDLS_ENABLE_LINK; 10768 break; 10769 case TDLS_DISABLE_LINK: 10770 nl80211_oper = NL80211_TDLS_DISABLE_LINK; 10771 break; 10772 case TDLS_ENABLE: 10773 return 0; 10774 case TDLS_DISABLE: 10775 return 0; 10776 default: 10777 return -EINVAL; 10778 } 10779 10780 msg = nlmsg_alloc(); 10781 if (!msg) 10782 return -ENOMEM; 10783 10784 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER); 10785 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper); 10786 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10787 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer); 10788 10789 return send_and_recv_msgs(drv, msg, NULL, NULL); 10790 10791nla_put_failure: 10792 nlmsg_free(msg); 10793 return -ENOBUFS; 10794} 10795 10796#endif /* CONFIG TDLS */ 10797 10798 10799#ifdef ANDROID 10800 10801typedef struct android_wifi_priv_cmd { 10802 char *buf; 10803 int used_len; 10804 int total_len; 10805} android_wifi_priv_cmd; 10806 10807static int drv_errors = 0; 10808 10809static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv) 10810{ 10811 drv_errors++; 10812 if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) { 10813 drv_errors = 0; 10814 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED"); 10815 } 10816} 10817 10818 10819static int android_priv_cmd(struct i802_bss *bss, const char *cmd) 10820{ 10821 struct wpa_driver_nl80211_data *drv = bss->drv; 10822 struct ifreq ifr; 10823 android_wifi_priv_cmd priv_cmd; 10824 char buf[MAX_DRV_CMD_SIZE]; 10825 int ret; 10826 10827 os_memset(&ifr, 0, sizeof(ifr)); 10828 os_memset(&priv_cmd, 0, sizeof(priv_cmd)); 10829 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 10830 10831 os_memset(buf, 0, sizeof(buf)); 10832 os_strlcpy(buf, cmd, sizeof(buf)); 10833 10834 priv_cmd.buf = buf; 10835 priv_cmd.used_len = sizeof(buf); 10836 priv_cmd.total_len = sizeof(buf); 10837 ifr.ifr_data = &priv_cmd; 10838 10839 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 10840 if (ret < 0) { 10841 wpa_printf(MSG_ERROR, "%s: failed to issue private commands", 10842 __func__); 10843 wpa_driver_send_hang_msg(drv); 10844 return ret; 10845 } 10846 10847 drv_errors = 0; 10848 return 0; 10849} 10850 10851 10852static int android_pno_start(struct i802_bss *bss, 10853 struct wpa_driver_scan_params *params) 10854{ 10855 struct wpa_driver_nl80211_data *drv = bss->drv; 10856 struct ifreq ifr; 10857 android_wifi_priv_cmd priv_cmd; 10858 int ret = 0, i = 0, bp; 10859 char buf[WEXT_PNO_MAX_COMMAND_SIZE]; 10860 10861 bp = WEXT_PNOSETUP_HEADER_SIZE; 10862 os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp); 10863 buf[bp++] = WEXT_PNO_TLV_PREFIX; 10864 buf[bp++] = WEXT_PNO_TLV_VERSION; 10865 buf[bp++] = WEXT_PNO_TLV_SUBVERSION; 10866 buf[bp++] = WEXT_PNO_TLV_RESERVED; 10867 10868 while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) { 10869 /* Check that there is enough space needed for 1 more SSID, the 10870 * other sections and null termination */ 10871 if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN + 10872 WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf)) 10873 break; 10874 wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan", 10875 params->ssids[i].ssid, 10876 params->ssids[i].ssid_len); 10877 buf[bp++] = WEXT_PNO_SSID_SECTION; 10878 buf[bp++] = params->ssids[i].ssid_len; 10879 os_memcpy(&buf[bp], params->ssids[i].ssid, 10880 params->ssids[i].ssid_len); 10881 bp += params->ssids[i].ssid_len; 10882 i++; 10883 } 10884 10885 buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION; 10886 os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x", 10887 WEXT_PNO_SCAN_INTERVAL); 10888 bp += WEXT_PNO_SCAN_INTERVAL_LENGTH; 10889 10890 buf[bp++] = WEXT_PNO_REPEAT_SECTION; 10891 os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x", 10892 WEXT_PNO_REPEAT); 10893 bp += WEXT_PNO_REPEAT_LENGTH; 10894 10895 buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION; 10896 os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x", 10897 WEXT_PNO_MAX_REPEAT); 10898 bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1; 10899 10900 memset(&ifr, 0, sizeof(ifr)); 10901 memset(&priv_cmd, 0, sizeof(priv_cmd)); 10902 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 10903 10904 priv_cmd.buf = buf; 10905 priv_cmd.used_len = bp; 10906 priv_cmd.total_len = bp; 10907 ifr.ifr_data = &priv_cmd; 10908 10909 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 10910 10911 if (ret < 0) { 10912 wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d", 10913 ret); 10914 wpa_driver_send_hang_msg(drv); 10915 return ret; 10916 } 10917 10918 drv_errors = 0; 10919 10920 return android_priv_cmd(bss, "PNOFORCE 1"); 10921} 10922 10923 10924static int android_pno_stop(struct i802_bss *bss) 10925{ 10926 return android_priv_cmd(bss, "PNOFORCE 0"); 10927} 10928 10929#endif /* ANDROID */ 10930 10931 10932static int driver_nl80211_set_key(const char *ifname, void *priv, 10933 enum wpa_alg alg, const u8 *addr, 10934 int key_idx, int set_tx, 10935 const u8 *seq, size_t seq_len, 10936 const u8 *key, size_t key_len) 10937{ 10938 struct i802_bss *bss = priv; 10939 return wpa_driver_nl80211_set_key(ifname, bss, alg, addr, key_idx, 10940 set_tx, seq, seq_len, key, key_len); 10941} 10942 10943 10944static int driver_nl80211_scan2(void *priv, 10945 struct wpa_driver_scan_params *params) 10946{ 10947 struct i802_bss *bss = priv; 10948 return wpa_driver_nl80211_scan(bss, params); 10949} 10950 10951 10952static int driver_nl80211_deauthenticate(void *priv, const u8 *addr, 10953 int reason_code) 10954{ 10955 struct i802_bss *bss = priv; 10956 return wpa_driver_nl80211_deauthenticate(bss, addr, reason_code); 10957} 10958 10959 10960static int driver_nl80211_authenticate(void *priv, 10961 struct wpa_driver_auth_params *params) 10962{ 10963 struct i802_bss *bss = priv; 10964 return wpa_driver_nl80211_authenticate(bss, params); 10965} 10966 10967 10968static void driver_nl80211_deinit(void *priv) 10969{ 10970 struct i802_bss *bss = priv; 10971 wpa_driver_nl80211_deinit(bss); 10972} 10973 10974 10975static int driver_nl80211_if_remove(void *priv, enum wpa_driver_if_type type, 10976 const char *ifname) 10977{ 10978 struct i802_bss *bss = priv; 10979 return wpa_driver_nl80211_if_remove(bss, type, ifname); 10980} 10981 10982 10983static int driver_nl80211_send_mlme(void *priv, const u8 *data, 10984 size_t data_len, int noack) 10985{ 10986 struct i802_bss *bss = priv; 10987 return wpa_driver_nl80211_send_mlme(bss, data, data_len, noack, 10988 0, 0, 0, 0); 10989} 10990 10991 10992static int driver_nl80211_sta_remove(void *priv, const u8 *addr) 10993{ 10994 struct i802_bss *bss = priv; 10995 return wpa_driver_nl80211_sta_remove(bss, addr); 10996} 10997 10998 10999#if defined(HOSTAPD) || defined(CONFIG_AP) 11000static int driver_nl80211_set_sta_vlan(void *priv, const u8 *addr, 11001 const char *ifname, int vlan_id) 11002{ 11003 struct i802_bss *bss = priv; 11004 return i802_set_sta_vlan(bss, addr, ifname, vlan_id); 11005} 11006#endif /* HOSTAPD || CONFIG_AP */ 11007 11008 11009static int driver_nl80211_read_sta_data(void *priv, 11010 struct hostap_sta_driver_data *data, 11011 const u8 *addr) 11012{ 11013 struct i802_bss *bss = priv; 11014 return i802_read_sta_data(bss, data, addr); 11015} 11016 11017 11018static int driver_nl80211_send_action(void *priv, unsigned int freq, 11019 unsigned int wait_time, 11020 const u8 *dst, const u8 *src, 11021 const u8 *bssid, 11022 const u8 *data, size_t data_len, 11023 int no_cck) 11024{ 11025 struct i802_bss *bss = priv; 11026 return wpa_driver_nl80211_send_action(bss, freq, wait_time, dst, src, 11027 bssid, data, data_len, no_cck); 11028} 11029 11030 11031static int driver_nl80211_probe_req_report(void *priv, int report) 11032{ 11033 struct i802_bss *bss = priv; 11034 return wpa_driver_nl80211_probe_req_report(bss, report); 11035} 11036 11037 11038static int wpa_driver_nl80211_update_ft_ies(void *priv, const u8 *md, 11039 const u8 *ies, size_t ies_len) 11040{ 11041 int ret; 11042 struct nl_msg *msg; 11043 struct i802_bss *bss = priv; 11044 struct wpa_driver_nl80211_data *drv = bss->drv; 11045 u16 mdid = WPA_GET_LE16(md); 11046 11047 msg = nlmsg_alloc(); 11048 if (!msg) 11049 return -ENOMEM; 11050 11051 wpa_printf(MSG_DEBUG, "nl80211: Updating FT IEs"); 11052 nl80211_cmd(drv, msg, 0, NL80211_CMD_UPDATE_FT_IES); 11053 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11054 NLA_PUT(msg, NL80211_ATTR_IE, ies_len, ies); 11055 NLA_PUT_U16(msg, NL80211_ATTR_MDID, mdid); 11056 11057 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 11058 if (ret) { 11059 wpa_printf(MSG_DEBUG, "nl80211: update_ft_ies failed " 11060 "err=%d (%s)", ret, strerror(-ret)); 11061 } 11062 11063 return ret; 11064 11065nla_put_failure: 11066 nlmsg_free(msg); 11067 return -ENOBUFS; 11068} 11069 11070 11071const u8 * wpa_driver_nl80211_get_macaddr(void *priv) 11072{ 11073 struct i802_bss *bss = priv; 11074 struct wpa_driver_nl80211_data *drv = bss->drv; 11075 11076 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) 11077 return NULL; 11078 11079 return bss->addr; 11080} 11081 11082 11083static const char * scan_state_str(enum scan_states scan_state) 11084{ 11085 switch (scan_state) { 11086 case NO_SCAN: 11087 return "NO_SCAN"; 11088 case SCAN_REQUESTED: 11089 return "SCAN_REQUESTED"; 11090 case SCAN_STARTED: 11091 return "SCAN_STARTED"; 11092 case SCAN_COMPLETED: 11093 return "SCAN_COMPLETED"; 11094 case SCAN_ABORTED: 11095 return "SCAN_ABORTED"; 11096 case SCHED_SCAN_STARTED: 11097 return "SCHED_SCAN_STARTED"; 11098 case SCHED_SCAN_STOPPED: 11099 return "SCHED_SCAN_STOPPED"; 11100 case SCHED_SCAN_RESULTS: 11101 return "SCHED_SCAN_RESULTS"; 11102 } 11103 11104 return "??"; 11105} 11106 11107 11108static int wpa_driver_nl80211_status(void *priv, char *buf, size_t buflen) 11109{ 11110 struct i802_bss *bss = priv; 11111 struct wpa_driver_nl80211_data *drv = bss->drv; 11112 int res; 11113 char *pos, *end; 11114 11115 pos = buf; 11116 end = buf + buflen; 11117 11118 res = os_snprintf(pos, end - pos, 11119 "ifindex=%d\n" 11120 "ifname=%s\n" 11121 "brname=%s\n" 11122 "addr=" MACSTR "\n" 11123 "freq=%d\n" 11124 "%s%s%s%s%s", 11125 bss->ifindex, 11126 bss->ifname, 11127 bss->brname, 11128 MAC2STR(bss->addr), 11129 bss->freq, 11130 bss->beacon_set ? "beacon_set=1\n" : "", 11131 bss->added_if_into_bridge ? 11132 "added_if_into_bridge=1\n" : "", 11133 bss->added_bridge ? "added_bridge=1\n" : "", 11134 bss->in_deinit ? "in_deinit=1\n" : "", 11135 bss->if_dynamic ? "if_dynamic=1\n" : ""); 11136 if (res < 0 || res >= end - pos) 11137 return pos - buf; 11138 pos += res; 11139 11140 if (bss->wdev_id_set) { 11141 res = os_snprintf(pos, end - pos, "wdev_id=%llu\n", 11142 (unsigned long long) bss->wdev_id); 11143 if (res < 0 || res >= end - pos) 11144 return pos - buf; 11145 pos += res; 11146 } 11147 11148 res = os_snprintf(pos, end - pos, 11149 "phyname=%s\n" 11150 "drv_ifindex=%d\n" 11151 "operstate=%d\n" 11152 "scan_state=%s\n" 11153 "auth_bssid=" MACSTR "\n" 11154 "auth_attempt_bssid=" MACSTR "\n" 11155 "bssid=" MACSTR "\n" 11156 "prev_bssid=" MACSTR "\n" 11157 "associated=%d\n" 11158 "assoc_freq=%u\n" 11159 "monitor_sock=%d\n" 11160 "monitor_ifidx=%d\n" 11161 "monitor_refcount=%d\n" 11162 "last_mgmt_freq=%u\n" 11163 "eapol_tx_sock=%d\n" 11164 "%s%s%s%s%s%s%s%s%s%s%s%s%s", 11165 drv->phyname, 11166 drv->ifindex, 11167 drv->operstate, 11168 scan_state_str(drv->scan_state), 11169 MAC2STR(drv->auth_bssid), 11170 MAC2STR(drv->auth_attempt_bssid), 11171 MAC2STR(drv->bssid), 11172 MAC2STR(drv->prev_bssid), 11173 drv->associated, 11174 drv->assoc_freq, 11175 drv->monitor_sock, 11176 drv->monitor_ifidx, 11177 drv->monitor_refcount, 11178 drv->last_mgmt_freq, 11179 drv->eapol_tx_sock, 11180 drv->ignore_if_down_event ? 11181 "ignore_if_down_event=1\n" : "", 11182 drv->scan_complete_events ? 11183 "scan_complete_events=1\n" : "", 11184 drv->disabled_11b_rates ? 11185 "disabled_11b_rates=1\n" : "", 11186 drv->pending_remain_on_chan ? 11187 "pending_remain_on_chan=1\n" : "", 11188 drv->in_interface_list ? "in_interface_list=1\n" : "", 11189 drv->device_ap_sme ? "device_ap_sme=1\n" : "", 11190 drv->poll_command_supported ? 11191 "poll_command_supported=1\n" : "", 11192 drv->data_tx_status ? "data_tx_status=1\n" : "", 11193 drv->scan_for_auth ? "scan_for_auth=1\n" : "", 11194 drv->retry_auth ? "retry_auth=1\n" : "", 11195 drv->use_monitor ? "use_monitor=1\n" : "", 11196 drv->ignore_next_local_disconnect ? 11197 "ignore_next_local_disconnect=1\n" : "", 11198 drv->allow_p2p_device ? "allow_p2p_device=1\n" : ""); 11199 if (res < 0 || res >= end - pos) 11200 return pos - buf; 11201 pos += res; 11202 11203 if (drv->has_capability) { 11204 res = os_snprintf(pos, end - pos, 11205 "capa.key_mgmt=0x%x\n" 11206 "capa.enc=0x%x\n" 11207 "capa.auth=0x%x\n" 11208 "capa.flags=0x%x\n" 11209 "capa.max_scan_ssids=%d\n" 11210 "capa.max_sched_scan_ssids=%d\n" 11211 "capa.sched_scan_supported=%d\n" 11212 "capa.max_match_sets=%d\n" 11213 "capa.max_remain_on_chan=%u\n" 11214 "capa.max_stations=%u\n" 11215 "capa.probe_resp_offloads=0x%x\n" 11216 "capa.max_acl_mac_addrs=%u\n" 11217 "capa.num_multichan_concurrent=%u\n", 11218 drv->capa.key_mgmt, 11219 drv->capa.enc, 11220 drv->capa.auth, 11221 drv->capa.flags, 11222 drv->capa.max_scan_ssids, 11223 drv->capa.max_sched_scan_ssids, 11224 drv->capa.sched_scan_supported, 11225 drv->capa.max_match_sets, 11226 drv->capa.max_remain_on_chan, 11227 drv->capa.max_stations, 11228 drv->capa.probe_resp_offloads, 11229 drv->capa.max_acl_mac_addrs, 11230 drv->capa.num_multichan_concurrent); 11231 if (res < 0 || res >= end - pos) 11232 return pos - buf; 11233 pos += res; 11234 } 11235 11236 return pos - buf; 11237} 11238 11239 11240const struct wpa_driver_ops wpa_driver_nl80211_ops = { 11241 .name = "nl80211", 11242 .desc = "Linux nl80211/cfg80211", 11243 .get_bssid = wpa_driver_nl80211_get_bssid, 11244 .get_ssid = wpa_driver_nl80211_get_ssid, 11245 .set_key = driver_nl80211_set_key, 11246 .scan2 = driver_nl80211_scan2, 11247 .sched_scan = wpa_driver_nl80211_sched_scan, 11248 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan, 11249 .get_scan_results2 = wpa_driver_nl80211_get_scan_results, 11250 .deauthenticate = driver_nl80211_deauthenticate, 11251 .authenticate = driver_nl80211_authenticate, 11252 .associate = wpa_driver_nl80211_associate, 11253 .global_init = nl80211_global_init, 11254 .global_deinit = nl80211_global_deinit, 11255 .init2 = wpa_driver_nl80211_init, 11256 .deinit = driver_nl80211_deinit, 11257 .get_capa = wpa_driver_nl80211_get_capa, 11258 .set_operstate = wpa_driver_nl80211_set_operstate, 11259 .set_supp_port = wpa_driver_nl80211_set_supp_port, 11260 .set_country = wpa_driver_nl80211_set_country, 11261 .get_country = wpa_driver_nl80211_get_country, 11262 .set_ap = wpa_driver_nl80211_set_ap, 11263 .set_acl = wpa_driver_nl80211_set_acl, 11264 .if_add = wpa_driver_nl80211_if_add, 11265 .if_remove = driver_nl80211_if_remove, 11266 .send_mlme = driver_nl80211_send_mlme, 11267 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data, 11268 .sta_add = wpa_driver_nl80211_sta_add, 11269 .sta_remove = driver_nl80211_sta_remove, 11270 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol, 11271 .sta_set_flags = wpa_driver_nl80211_sta_set_flags, 11272#ifdef HOSTAPD 11273 .hapd_init = i802_init, 11274 .hapd_deinit = i802_deinit, 11275 .set_wds_sta = i802_set_wds_sta, 11276#endif /* HOSTAPD */ 11277#if defined(HOSTAPD) || defined(CONFIG_AP) 11278 .get_seqnum = i802_get_seqnum, 11279 .flush = i802_flush, 11280 .get_inact_sec = i802_get_inact_sec, 11281 .sta_clear_stats = i802_sta_clear_stats, 11282 .set_rts = i802_set_rts, 11283 .set_frag = i802_set_frag, 11284 .set_tx_queue_params = i802_set_tx_queue_params, 11285 .set_sta_vlan = driver_nl80211_set_sta_vlan, 11286 .sta_deauth = i802_sta_deauth, 11287 .sta_disassoc = i802_sta_disassoc, 11288#endif /* HOSTAPD || CONFIG_AP */ 11289 .read_sta_data = driver_nl80211_read_sta_data, 11290 .set_freq = i802_set_freq, 11291 .send_action = driver_nl80211_send_action, 11292 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait, 11293 .remain_on_channel = wpa_driver_nl80211_remain_on_channel, 11294 .cancel_remain_on_channel = 11295 wpa_driver_nl80211_cancel_remain_on_channel, 11296 .probe_req_report = driver_nl80211_probe_req_report, 11297 .deinit_ap = wpa_driver_nl80211_deinit_ap, 11298 .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli, 11299 .resume = wpa_driver_nl80211_resume, 11300 .send_ft_action = nl80211_send_ft_action, 11301 .signal_monitor = nl80211_signal_monitor, 11302 .signal_poll = nl80211_signal_poll, 11303 .send_frame = nl80211_send_frame, 11304 .shared_freq = wpa_driver_nl80211_shared_freq, 11305 .set_param = nl80211_set_param, 11306 .get_radio_name = nl80211_get_radio_name, 11307 .add_pmkid = nl80211_add_pmkid, 11308 .remove_pmkid = nl80211_remove_pmkid, 11309 .flush_pmkid = nl80211_flush_pmkid, 11310 .set_rekey_info = nl80211_set_rekey_info, 11311 .poll_client = nl80211_poll_client, 11312 .set_p2p_powersave = nl80211_set_p2p_powersave, 11313 .start_dfs_cac = nl80211_start_radar_detection, 11314 .stop_ap = wpa_driver_nl80211_stop_ap, 11315#ifdef CONFIG_TDLS 11316 .send_tdls_mgmt = nl80211_send_tdls_mgmt, 11317 .tdls_oper = nl80211_tdls_oper, 11318#endif /* CONFIG_TDLS */ 11319 .update_ft_ies = wpa_driver_nl80211_update_ft_ies, 11320 .get_mac_addr = wpa_driver_nl80211_get_macaddr, 11321 .get_survey = wpa_driver_nl80211_get_survey, 11322 .status = wpa_driver_nl80211_status, 11323#ifdef ANDROID_P2P 11324 .set_noa = wpa_driver_set_p2p_noa, 11325 .get_noa = wpa_driver_get_p2p_noa, 11326 .set_ap_wps_ie = wpa_driver_set_ap_wps_p2p_ie, 11327#endif 11328#ifdef ANDROID 11329 .driver_cmd = wpa_driver_nl80211_driver_cmd, 11330#endif 11331}; 11332