driver_nl80211.c revision 7d5c8f257a74ac0d12828962a492e8b84ef83923
1/* 2 * Driver interaction with Linux nl80211/cfg80211 3 * Copyright (c) 2002-2014, Jouni Malinen <j@w1.fi> 4 * Copyright (c) 2003-2004, Instant802 Networks, Inc. 5 * Copyright (c) 2005-2006, Devicescape Software, Inc. 6 * Copyright (c) 2007, Johannes Berg <johannes@sipsolutions.net> 7 * Copyright (c) 2009-2010, Atheros Communications 8 * 9 * This software may be distributed under the terms of the BSD license. 10 * See README for more details. 11 */ 12 13#include "includes.h" 14#include <sys/ioctl.h> 15#include <sys/types.h> 16#include <sys/stat.h> 17#include <fcntl.h> 18#include <net/if.h> 19#include <netlink/genl/genl.h> 20#include <netlink/genl/family.h> 21#include <netlink/genl/ctrl.h> 22#include <linux/rtnetlink.h> 23#include <netpacket/packet.h> 24#include <linux/filter.h> 25#include <linux/errqueue.h> 26#include "nl80211_copy.h" 27 28#include "common.h" 29#include "eloop.h" 30#include "utils/list.h" 31#include "common/qca-vendor.h" 32#include "common/ieee802_11_defs.h" 33#include "common/ieee802_11_common.h" 34#include "l2_packet/l2_packet.h" 35#include "netlink.h" 36#include "linux_ioctl.h" 37#include "radiotap.h" 38#include "radiotap_iter.h" 39#include "rfkill.h" 40#include "driver.h" 41 42#ifndef SO_WIFI_STATUS 43# if defined(__sparc__) 44# define SO_WIFI_STATUS 0x0025 45# elif defined(__parisc__) 46# define SO_WIFI_STATUS 0x4022 47# else 48# define SO_WIFI_STATUS 41 49# endif 50 51# define SCM_WIFI_STATUS SO_WIFI_STATUS 52#endif 53 54#ifndef SO_EE_ORIGIN_TXSTATUS 55#define SO_EE_ORIGIN_TXSTATUS 4 56#endif 57 58#ifndef PACKET_TX_TIMESTAMP 59#define PACKET_TX_TIMESTAMP 16 60#endif 61 62#ifdef ANDROID 63#include "android_drv.h" 64#endif /* ANDROID */ 65#ifdef CONFIG_LIBNL20 66/* libnl 2.0 compatibility code */ 67#define nl_handle nl_sock 68#define nl80211_handle_alloc nl_socket_alloc_cb 69#define nl80211_handle_destroy nl_socket_free 70#else 71/* 72 * libnl 1.1 has a bug, it tries to allocate socket numbers densely 73 * but when you free a socket again it will mess up its bitmap and 74 * and use the wrong number the next time it needs a socket ID. 75 * Therefore, we wrap the handle alloc/destroy and add our own pid 76 * accounting. 77 */ 78static uint32_t port_bitmap[32] = { 0 }; 79 80static struct nl_handle *nl80211_handle_alloc(void *cb) 81{ 82 struct nl_handle *handle; 83 uint32_t pid = getpid() & 0x3FFFFF; 84 int i; 85 86 handle = nl_handle_alloc_cb(cb); 87 88 for (i = 0; i < 1024; i++) { 89 if (port_bitmap[i / 32] & (1 << (i % 32))) 90 continue; 91 port_bitmap[i / 32] |= 1 << (i % 32); 92 pid += i << 22; 93 break; 94 } 95 96 nl_socket_set_local_port(handle, pid); 97 98 return handle; 99} 100 101static void nl80211_handle_destroy(struct nl_handle *handle) 102{ 103 uint32_t port = nl_socket_get_local_port(handle); 104 105 port >>= 22; 106 port_bitmap[port / 32] &= ~(1 << (port % 32)); 107 108 nl_handle_destroy(handle); 109} 110#endif /* CONFIG_LIBNL20 */ 111 112 113#ifdef ANDROID 114/* system/core/libnl_2 does not include nl_socket_set_nonblocking() */ 115static int android_nl_socket_set_nonblocking(struct nl_handle *handle) 116{ 117 return fcntl(nl_socket_get_fd(handle), F_SETFL, O_NONBLOCK); 118} 119#undef nl_socket_set_nonblocking 120#define nl_socket_set_nonblocking(h) android_nl_socket_set_nonblocking(h) 121#endif /* ANDROID */ 122 123 124static struct nl_handle * nl_create_handle(struct nl_cb *cb, const char *dbg) 125{ 126 struct nl_handle *handle; 127 128 handle = nl80211_handle_alloc(cb); 129 if (handle == NULL) { 130 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " 131 "callbacks (%s)", dbg); 132 return NULL; 133 } 134 135 if (genl_connect(handle)) { 136 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic " 137 "netlink (%s)", dbg); 138 nl80211_handle_destroy(handle); 139 return NULL; 140 } 141 142 return handle; 143} 144 145 146static void nl_destroy_handles(struct nl_handle **handle) 147{ 148 if (*handle == NULL) 149 return; 150 nl80211_handle_destroy(*handle); 151 *handle = NULL; 152} 153 154 155#if __WORDSIZE == 64 156#define ELOOP_SOCKET_INVALID (intptr_t) 0x8888888888888889ULL 157#else 158#define ELOOP_SOCKET_INVALID (intptr_t) 0x88888889ULL 159#endif 160 161static void nl80211_register_eloop_read(struct nl_handle **handle, 162 eloop_sock_handler handler, 163 void *eloop_data) 164{ 165 nl_socket_set_nonblocking(*handle); 166 eloop_register_read_sock(nl_socket_get_fd(*handle), handler, 167 eloop_data, *handle); 168 *handle = (void *) (((intptr_t) *handle) ^ ELOOP_SOCKET_INVALID); 169} 170 171 172static void nl80211_destroy_eloop_handle(struct nl_handle **handle) 173{ 174 *handle = (void *) (((intptr_t) *handle) ^ ELOOP_SOCKET_INVALID); 175 eloop_unregister_read_sock(nl_socket_get_fd(*handle)); 176 nl_destroy_handles(handle); 177} 178 179 180#ifndef IFF_LOWER_UP 181#define IFF_LOWER_UP 0x10000 /* driver signals L1 up */ 182#endif 183#ifndef IFF_DORMANT 184#define IFF_DORMANT 0x20000 /* driver signals dormant */ 185#endif 186 187#ifndef IF_OPER_DORMANT 188#define IF_OPER_DORMANT 5 189#endif 190#ifndef IF_OPER_UP 191#define IF_OPER_UP 6 192#endif 193 194struct nl80211_global { 195 struct dl_list interfaces; 196 int if_add_ifindex; 197 u64 if_add_wdevid; 198 int if_add_wdevid_set; 199 struct netlink_data *netlink; 200 struct nl_cb *nl_cb; 201 struct nl_handle *nl; 202 int nl80211_id; 203 int ioctl_sock; /* socket for ioctl() use */ 204 205 struct nl_handle *nl_event; 206}; 207 208struct nl80211_wiphy_data { 209 struct dl_list list; 210 struct dl_list bsss; 211 struct dl_list drvs; 212 213 struct nl_handle *nl_beacons; 214 struct nl_cb *nl_cb; 215 216 int wiphy_idx; 217}; 218 219static void nl80211_global_deinit(void *priv); 220 221struct i802_bss { 222 struct wpa_driver_nl80211_data *drv; 223 struct i802_bss *next; 224 int ifindex; 225 u64 wdev_id; 226 char ifname[IFNAMSIZ + 1]; 227 char brname[IFNAMSIZ]; 228 unsigned int beacon_set:1; 229 unsigned int added_if_into_bridge:1; 230 unsigned int added_bridge:1; 231 unsigned int in_deinit:1; 232 unsigned int wdev_id_set:1; 233 unsigned int added_if:1; 234 235 u8 addr[ETH_ALEN]; 236 237 int freq; 238 int if_dynamic; 239 240 void *ctx; 241 struct nl_handle *nl_preq, *nl_mgmt; 242 struct nl_cb *nl_cb; 243 244 struct nl80211_wiphy_data *wiphy_data; 245 struct dl_list wiphy_list; 246}; 247 248struct wpa_driver_nl80211_data { 249 struct nl80211_global *global; 250 struct dl_list list; 251 struct dl_list wiphy_list; 252 char phyname[32]; 253 void *ctx; 254 int ifindex; 255 int if_removed; 256 int if_disabled; 257 int ignore_if_down_event; 258 struct rfkill_data *rfkill; 259 struct wpa_driver_capa capa; 260 u8 *extended_capa, *extended_capa_mask; 261 unsigned int extended_capa_len; 262 int has_capability; 263 264 int operstate; 265 266 int scan_complete_events; 267 enum scan_states { 268 NO_SCAN, SCAN_REQUESTED, SCAN_STARTED, SCAN_COMPLETED, 269 SCAN_ABORTED, SCHED_SCAN_STARTED, SCHED_SCAN_STOPPED, 270 SCHED_SCAN_RESULTS 271 } scan_state; 272 273 struct nl_cb *nl_cb; 274 275 u8 auth_bssid[ETH_ALEN]; 276 u8 auth_attempt_bssid[ETH_ALEN]; 277 u8 bssid[ETH_ALEN]; 278 u8 prev_bssid[ETH_ALEN]; 279 int associated; 280 u8 ssid[32]; 281 size_t ssid_len; 282 enum nl80211_iftype nlmode; 283 enum nl80211_iftype ap_scan_as_station; 284 unsigned int assoc_freq; 285 286 int monitor_sock; 287 int monitor_ifidx; 288 int monitor_refcount; 289 290 unsigned int disabled_11b_rates:1; 291 unsigned int pending_remain_on_chan:1; 292 unsigned int in_interface_list:1; 293 unsigned int device_ap_sme:1; 294 unsigned int poll_command_supported:1; 295 unsigned int data_tx_status:1; 296 unsigned int scan_for_auth:1; 297 unsigned int retry_auth:1; 298 unsigned int use_monitor:1; 299 unsigned int ignore_next_local_disconnect:1; 300 unsigned int allow_p2p_device:1; 301 unsigned int hostapd:1; 302 unsigned int start_mode_ap:1; 303 unsigned int start_iface_up:1; 304 unsigned int test_use_roc_tx:1; 305 306 u64 remain_on_chan_cookie; 307 u64 send_action_cookie; 308 309 unsigned int last_mgmt_freq; 310 311 struct wpa_driver_scan_filter *filter_ssids; 312 size_t num_filter_ssids; 313 314 struct i802_bss *first_bss; 315 316 int eapol_tx_sock; 317 318 int eapol_sock; /* socket for EAPOL frames */ 319 320 int default_if_indices[16]; 321 int *if_indices; 322 int num_if_indices; 323 324 /* From failed authentication command */ 325 int auth_freq; 326 u8 auth_bssid_[ETH_ALEN]; 327 u8 auth_ssid[32]; 328 size_t auth_ssid_len; 329 int auth_alg; 330 u8 *auth_ie; 331 size_t auth_ie_len; 332 u8 auth_wep_key[4][16]; 333 size_t auth_wep_key_len[4]; 334 int auth_wep_tx_keyidx; 335 int auth_local_state_change; 336 int auth_p2p; 337}; 338 339 340static void wpa_driver_nl80211_deinit(struct i802_bss *bss); 341static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, 342 void *timeout_ctx); 343static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 344 enum nl80211_iftype nlmode); 345static int 346wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv, 347 const u8 *set_addr, int first); 348static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 349 const u8 *addr, int cmd, u16 reason_code, 350 int local_state_change); 351static void nl80211_remove_monitor_interface( 352 struct wpa_driver_nl80211_data *drv); 353static int nl80211_send_frame_cmd(struct i802_bss *bss, 354 unsigned int freq, unsigned int wait, 355 const u8 *buf, size_t buf_len, u64 *cookie, 356 int no_cck, int no_ack, int offchanok); 357static int nl80211_register_frame(struct i802_bss *bss, 358 struct nl_handle *hl_handle, 359 u16 type, const u8 *match, size_t match_len); 360static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, 361 int report); 362#ifdef ANDROID 363static int android_pno_start(struct i802_bss *bss, 364 struct wpa_driver_scan_params *params); 365static int android_pno_stop(struct i802_bss *bss); 366extern int wpa_driver_nl80211_driver_cmd(void *priv, char *cmd, char *buf, 367 size_t buf_len); 368#endif /* ANDROID */ 369#ifdef ANDROID_P2P 370int wpa_driver_set_p2p_noa(void *priv, u8 count, int start, int duration); 371int wpa_driver_get_p2p_noa(void *priv, u8 *buf, size_t len); 372int wpa_driver_set_p2p_ps(void *priv, int legacy_ps, int opp_ps, int ctwindow); 373int wpa_driver_set_ap_wps_p2p_ie(void *priv, const struct wpabuf *beacon, 374 const struct wpabuf *proberesp, 375 const struct wpabuf *assocresp); 376#endif /* ANDROID_P2P */ 377 378static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 379static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 380static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 381static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 382 enum wpa_driver_if_type type, 383 const char *ifname); 384 385static int wpa_driver_nl80211_set_freq(struct i802_bss *bss, 386 struct hostapd_freq_params *freq); 387static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 388 int ifindex, int disabled); 389 390static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv); 391static int wpa_driver_nl80211_authenticate_retry( 392 struct wpa_driver_nl80211_data *drv); 393 394static int i802_set_iface_flags(struct i802_bss *bss, int up); 395 396 397static const char * nl80211_command_to_string(enum nl80211_commands cmd) 398{ 399#define C2S(x) case x: return #x; 400 switch (cmd) { 401 C2S(NL80211_CMD_UNSPEC) 402 C2S(NL80211_CMD_GET_WIPHY) 403 C2S(NL80211_CMD_SET_WIPHY) 404 C2S(NL80211_CMD_NEW_WIPHY) 405 C2S(NL80211_CMD_DEL_WIPHY) 406 C2S(NL80211_CMD_GET_INTERFACE) 407 C2S(NL80211_CMD_SET_INTERFACE) 408 C2S(NL80211_CMD_NEW_INTERFACE) 409 C2S(NL80211_CMD_DEL_INTERFACE) 410 C2S(NL80211_CMD_GET_KEY) 411 C2S(NL80211_CMD_SET_KEY) 412 C2S(NL80211_CMD_NEW_KEY) 413 C2S(NL80211_CMD_DEL_KEY) 414 C2S(NL80211_CMD_GET_BEACON) 415 C2S(NL80211_CMD_SET_BEACON) 416 C2S(NL80211_CMD_START_AP) 417 C2S(NL80211_CMD_STOP_AP) 418 C2S(NL80211_CMD_GET_STATION) 419 C2S(NL80211_CMD_SET_STATION) 420 C2S(NL80211_CMD_NEW_STATION) 421 C2S(NL80211_CMD_DEL_STATION) 422 C2S(NL80211_CMD_GET_MPATH) 423 C2S(NL80211_CMD_SET_MPATH) 424 C2S(NL80211_CMD_NEW_MPATH) 425 C2S(NL80211_CMD_DEL_MPATH) 426 C2S(NL80211_CMD_SET_BSS) 427 C2S(NL80211_CMD_SET_REG) 428 C2S(NL80211_CMD_REQ_SET_REG) 429 C2S(NL80211_CMD_GET_MESH_CONFIG) 430 C2S(NL80211_CMD_SET_MESH_CONFIG) 431 C2S(NL80211_CMD_SET_MGMT_EXTRA_IE) 432 C2S(NL80211_CMD_GET_REG) 433 C2S(NL80211_CMD_GET_SCAN) 434 C2S(NL80211_CMD_TRIGGER_SCAN) 435 C2S(NL80211_CMD_NEW_SCAN_RESULTS) 436 C2S(NL80211_CMD_SCAN_ABORTED) 437 C2S(NL80211_CMD_REG_CHANGE) 438 C2S(NL80211_CMD_AUTHENTICATE) 439 C2S(NL80211_CMD_ASSOCIATE) 440 C2S(NL80211_CMD_DEAUTHENTICATE) 441 C2S(NL80211_CMD_DISASSOCIATE) 442 C2S(NL80211_CMD_MICHAEL_MIC_FAILURE) 443 C2S(NL80211_CMD_REG_BEACON_HINT) 444 C2S(NL80211_CMD_JOIN_IBSS) 445 C2S(NL80211_CMD_LEAVE_IBSS) 446 C2S(NL80211_CMD_TESTMODE) 447 C2S(NL80211_CMD_CONNECT) 448 C2S(NL80211_CMD_ROAM) 449 C2S(NL80211_CMD_DISCONNECT) 450 C2S(NL80211_CMD_SET_WIPHY_NETNS) 451 C2S(NL80211_CMD_GET_SURVEY) 452 C2S(NL80211_CMD_NEW_SURVEY_RESULTS) 453 C2S(NL80211_CMD_SET_PMKSA) 454 C2S(NL80211_CMD_DEL_PMKSA) 455 C2S(NL80211_CMD_FLUSH_PMKSA) 456 C2S(NL80211_CMD_REMAIN_ON_CHANNEL) 457 C2S(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL) 458 C2S(NL80211_CMD_SET_TX_BITRATE_MASK) 459 C2S(NL80211_CMD_REGISTER_FRAME) 460 C2S(NL80211_CMD_FRAME) 461 C2S(NL80211_CMD_FRAME_TX_STATUS) 462 C2S(NL80211_CMD_SET_POWER_SAVE) 463 C2S(NL80211_CMD_GET_POWER_SAVE) 464 C2S(NL80211_CMD_SET_CQM) 465 C2S(NL80211_CMD_NOTIFY_CQM) 466 C2S(NL80211_CMD_SET_CHANNEL) 467 C2S(NL80211_CMD_SET_WDS_PEER) 468 C2S(NL80211_CMD_FRAME_WAIT_CANCEL) 469 C2S(NL80211_CMD_JOIN_MESH) 470 C2S(NL80211_CMD_LEAVE_MESH) 471 C2S(NL80211_CMD_UNPROT_DEAUTHENTICATE) 472 C2S(NL80211_CMD_UNPROT_DISASSOCIATE) 473 C2S(NL80211_CMD_NEW_PEER_CANDIDATE) 474 C2S(NL80211_CMD_GET_WOWLAN) 475 C2S(NL80211_CMD_SET_WOWLAN) 476 C2S(NL80211_CMD_START_SCHED_SCAN) 477 C2S(NL80211_CMD_STOP_SCHED_SCAN) 478 C2S(NL80211_CMD_SCHED_SCAN_RESULTS) 479 C2S(NL80211_CMD_SCHED_SCAN_STOPPED) 480 C2S(NL80211_CMD_SET_REKEY_OFFLOAD) 481 C2S(NL80211_CMD_PMKSA_CANDIDATE) 482 C2S(NL80211_CMD_TDLS_OPER) 483 C2S(NL80211_CMD_TDLS_MGMT) 484 C2S(NL80211_CMD_UNEXPECTED_FRAME) 485 C2S(NL80211_CMD_PROBE_CLIENT) 486 C2S(NL80211_CMD_REGISTER_BEACONS) 487 C2S(NL80211_CMD_UNEXPECTED_4ADDR_FRAME) 488 C2S(NL80211_CMD_SET_NOACK_MAP) 489 C2S(NL80211_CMD_CH_SWITCH_NOTIFY) 490 C2S(NL80211_CMD_START_P2P_DEVICE) 491 C2S(NL80211_CMD_STOP_P2P_DEVICE) 492 C2S(NL80211_CMD_CONN_FAILED) 493 C2S(NL80211_CMD_SET_MCAST_RATE) 494 C2S(NL80211_CMD_SET_MAC_ACL) 495 C2S(NL80211_CMD_RADAR_DETECT) 496 C2S(NL80211_CMD_GET_PROTOCOL_FEATURES) 497 C2S(NL80211_CMD_UPDATE_FT_IES) 498 C2S(NL80211_CMD_FT_EVENT) 499 C2S(NL80211_CMD_CRIT_PROTOCOL_START) 500 C2S(NL80211_CMD_CRIT_PROTOCOL_STOP) 501 C2S(NL80211_CMD_GET_COALESCE) 502 C2S(NL80211_CMD_SET_COALESCE) 503 C2S(NL80211_CMD_CHANNEL_SWITCH) 504 C2S(NL80211_CMD_VENDOR) 505 C2S(NL80211_CMD_SET_QOS_MAP) 506 default: 507 return "NL80211_CMD_UNKNOWN"; 508 } 509#undef C2S 510} 511 512 513/* Converts nl80211_chan_width to a common format */ 514static enum chan_width convert2width(int width) 515{ 516 switch (width) { 517 case NL80211_CHAN_WIDTH_20_NOHT: 518 return CHAN_WIDTH_20_NOHT; 519 case NL80211_CHAN_WIDTH_20: 520 return CHAN_WIDTH_20; 521 case NL80211_CHAN_WIDTH_40: 522 return CHAN_WIDTH_40; 523 case NL80211_CHAN_WIDTH_80: 524 return CHAN_WIDTH_80; 525 case NL80211_CHAN_WIDTH_80P80: 526 return CHAN_WIDTH_80P80; 527 case NL80211_CHAN_WIDTH_160: 528 return CHAN_WIDTH_160; 529 } 530 return CHAN_WIDTH_UNKNOWN; 531} 532 533 534static int is_ap_interface(enum nl80211_iftype nlmode) 535{ 536 return (nlmode == NL80211_IFTYPE_AP || 537 nlmode == NL80211_IFTYPE_P2P_GO); 538} 539 540 541static int is_sta_interface(enum nl80211_iftype nlmode) 542{ 543 return (nlmode == NL80211_IFTYPE_STATION || 544 nlmode == NL80211_IFTYPE_P2P_CLIENT); 545} 546 547 548static int is_p2p_net_interface(enum nl80211_iftype nlmode) 549{ 550 return (nlmode == NL80211_IFTYPE_P2P_CLIENT || 551 nlmode == NL80211_IFTYPE_P2P_GO); 552} 553 554 555static void nl80211_mark_disconnected(struct wpa_driver_nl80211_data *drv) 556{ 557 if (drv->associated) 558 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); 559 drv->associated = 0; 560 os_memset(drv->bssid, 0, ETH_ALEN); 561} 562 563 564struct nl80211_bss_info_arg { 565 struct wpa_driver_nl80211_data *drv; 566 struct wpa_scan_results *res; 567 unsigned int assoc_freq; 568 u8 assoc_bssid[ETH_ALEN]; 569}; 570 571static int bss_info_handler(struct nl_msg *msg, void *arg); 572 573 574/* nl80211 code */ 575static int ack_handler(struct nl_msg *msg, void *arg) 576{ 577 int *err = arg; 578 *err = 0; 579 return NL_STOP; 580} 581 582static int finish_handler(struct nl_msg *msg, void *arg) 583{ 584 int *ret = arg; 585 *ret = 0; 586 return NL_SKIP; 587} 588 589static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err, 590 void *arg) 591{ 592 int *ret = arg; 593 *ret = err->error; 594 return NL_SKIP; 595} 596 597 598static int no_seq_check(struct nl_msg *msg, void *arg) 599{ 600 return NL_OK; 601} 602 603 604static int send_and_recv(struct nl80211_global *global, 605 struct nl_handle *nl_handle, struct nl_msg *msg, 606 int (*valid_handler)(struct nl_msg *, void *), 607 void *valid_data) 608{ 609 struct nl_cb *cb; 610 int err = -ENOMEM; 611 612 cb = nl_cb_clone(global->nl_cb); 613 if (!cb) 614 goto out; 615 616 err = nl_send_auto_complete(nl_handle, msg); 617 if (err < 0) 618 goto out; 619 620 err = 1; 621 622 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err); 623 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err); 624 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err); 625 626 if (valid_handler) 627 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, 628 valid_handler, valid_data); 629 630 while (err > 0) { 631 int res = nl_recvmsgs(nl_handle, cb); 632 if (res) { 633 wpa_printf(MSG_INFO, 634 "nl80211: %s->nl_recvmsgs failed: %d", 635 __func__, res); 636 } 637 } 638 out: 639 nl_cb_put(cb); 640 nlmsg_free(msg); 641 return err; 642} 643 644 645static int send_and_recv_msgs_global(struct nl80211_global *global, 646 struct nl_msg *msg, 647 int (*valid_handler)(struct nl_msg *, void *), 648 void *valid_data) 649{ 650 return send_and_recv(global, global->nl, msg, valid_handler, 651 valid_data); 652} 653 654 655static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv, 656 struct nl_msg *msg, 657 int (*valid_handler)(struct nl_msg *, void *), 658 void *valid_data) 659{ 660 return send_and_recv(drv->global, drv->global->nl, msg, 661 valid_handler, valid_data); 662} 663 664 665struct family_data { 666 const char *group; 667 int id; 668}; 669 670 671static int nl80211_set_iface_id(struct nl_msg *msg, struct i802_bss *bss) 672{ 673 if (bss->wdev_id_set) 674 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 675 else 676 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 677 return 0; 678 679nla_put_failure: 680 return -1; 681} 682 683 684static int family_handler(struct nl_msg *msg, void *arg) 685{ 686 struct family_data *res = arg; 687 struct nlattr *tb[CTRL_ATTR_MAX + 1]; 688 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 689 struct nlattr *mcgrp; 690 int i; 691 692 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 693 genlmsg_attrlen(gnlh, 0), NULL); 694 if (!tb[CTRL_ATTR_MCAST_GROUPS]) 695 return NL_SKIP; 696 697 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) { 698 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1]; 699 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp), 700 nla_len(mcgrp), NULL); 701 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] || 702 !tb2[CTRL_ATTR_MCAST_GRP_ID] || 703 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]), 704 res->group, 705 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0) 706 continue; 707 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]); 708 break; 709 }; 710 711 return NL_SKIP; 712} 713 714 715static int nl_get_multicast_id(struct nl80211_global *global, 716 const char *family, const char *group) 717{ 718 struct nl_msg *msg; 719 int ret = -1; 720 struct family_data res = { group, -ENOENT }; 721 722 msg = nlmsg_alloc(); 723 if (!msg) 724 return -ENOMEM; 725 genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"), 726 0, 0, CTRL_CMD_GETFAMILY, 0); 727 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family); 728 729 ret = send_and_recv_msgs_global(global, msg, family_handler, &res); 730 msg = NULL; 731 if (ret == 0) 732 ret = res.id; 733 734nla_put_failure: 735 nlmsg_free(msg); 736 return ret; 737} 738 739 740static void * nl80211_cmd(struct wpa_driver_nl80211_data *drv, 741 struct nl_msg *msg, int flags, uint8_t cmd) 742{ 743 return genlmsg_put(msg, 0, 0, drv->global->nl80211_id, 744 0, flags, cmd, 0); 745} 746 747 748struct wiphy_idx_data { 749 int wiphy_idx; 750 enum nl80211_iftype nlmode; 751 u8 *macaddr; 752}; 753 754 755static int netdev_info_handler(struct nl_msg *msg, void *arg) 756{ 757 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 758 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 759 struct wiphy_idx_data *info = arg; 760 761 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 762 genlmsg_attrlen(gnlh, 0), NULL); 763 764 if (tb[NL80211_ATTR_WIPHY]) 765 info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]); 766 767 if (tb[NL80211_ATTR_IFTYPE]) 768 info->nlmode = nla_get_u32(tb[NL80211_ATTR_IFTYPE]); 769 770 if (tb[NL80211_ATTR_MAC] && info->macaddr) 771 os_memcpy(info->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 772 ETH_ALEN); 773 774 return NL_SKIP; 775} 776 777 778static int nl80211_get_wiphy_index(struct i802_bss *bss) 779{ 780 struct nl_msg *msg; 781 struct wiphy_idx_data data = { 782 .wiphy_idx = -1, 783 .macaddr = NULL, 784 }; 785 786 msg = nlmsg_alloc(); 787 if (!msg) 788 return NL80211_IFTYPE_UNSPECIFIED; 789 790 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 791 792 if (nl80211_set_iface_id(msg, bss) < 0) 793 goto nla_put_failure; 794 795 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) 796 return data.wiphy_idx; 797 msg = NULL; 798nla_put_failure: 799 nlmsg_free(msg); 800 return -1; 801} 802 803 804static enum nl80211_iftype nl80211_get_ifmode(struct i802_bss *bss) 805{ 806 struct nl_msg *msg; 807 struct wiphy_idx_data data = { 808 .nlmode = NL80211_IFTYPE_UNSPECIFIED, 809 .macaddr = NULL, 810 }; 811 812 msg = nlmsg_alloc(); 813 if (!msg) 814 return -1; 815 816 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 817 818 if (nl80211_set_iface_id(msg, bss) < 0) 819 goto nla_put_failure; 820 821 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) 822 return data.nlmode; 823 msg = NULL; 824nla_put_failure: 825 nlmsg_free(msg); 826 return NL80211_IFTYPE_UNSPECIFIED; 827} 828 829 830static int nl80211_get_macaddr(struct i802_bss *bss) 831{ 832 struct nl_msg *msg; 833 struct wiphy_idx_data data = { 834 .macaddr = bss->addr, 835 }; 836 837 msg = nlmsg_alloc(); 838 if (!msg) 839 return NL80211_IFTYPE_UNSPECIFIED; 840 841 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 842 if (nl80211_set_iface_id(msg, bss) < 0) 843 goto nla_put_failure; 844 845 return send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data); 846 847nla_put_failure: 848 nlmsg_free(msg); 849 return NL80211_IFTYPE_UNSPECIFIED; 850} 851 852 853static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv, 854 struct nl80211_wiphy_data *w) 855{ 856 struct nl_msg *msg; 857 int ret = -1; 858 859 msg = nlmsg_alloc(); 860 if (!msg) 861 return -1; 862 863 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS); 864 865 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx); 866 867 ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL); 868 msg = NULL; 869 if (ret) { 870 wpa_printf(MSG_DEBUG, "nl80211: Register beacons command " 871 "failed: ret=%d (%s)", 872 ret, strerror(-ret)); 873 goto nla_put_failure; 874 } 875 ret = 0; 876nla_put_failure: 877 nlmsg_free(msg); 878 return ret; 879} 880 881 882static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle) 883{ 884 struct nl80211_wiphy_data *w = eloop_ctx; 885 int res; 886 887 wpa_printf(MSG_EXCESSIVE, "nl80211: Beacon event message available"); 888 889 res = nl_recvmsgs(handle, w->nl_cb); 890 if (res) { 891 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d", 892 __func__, res); 893 } 894} 895 896 897static int process_beacon_event(struct nl_msg *msg, void *arg) 898{ 899 struct nl80211_wiphy_data *w = arg; 900 struct wpa_driver_nl80211_data *drv; 901 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 902 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 903 union wpa_event_data event; 904 905 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 906 genlmsg_attrlen(gnlh, 0), NULL); 907 908 if (gnlh->cmd != NL80211_CMD_FRAME) { 909 wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)", 910 gnlh->cmd); 911 return NL_SKIP; 912 } 913 914 if (!tb[NL80211_ATTR_FRAME]) 915 return NL_SKIP; 916 917 dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data, 918 wiphy_list) { 919 os_memset(&event, 0, sizeof(event)); 920 event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]); 921 event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]); 922 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 923 } 924 925 return NL_SKIP; 926} 927 928 929static struct nl80211_wiphy_data * 930nl80211_get_wiphy_data_ap(struct i802_bss *bss) 931{ 932 static DEFINE_DL_LIST(nl80211_wiphys); 933 struct nl80211_wiphy_data *w; 934 int wiphy_idx, found = 0; 935 struct i802_bss *tmp_bss; 936 937 if (bss->wiphy_data != NULL) 938 return bss->wiphy_data; 939 940 wiphy_idx = nl80211_get_wiphy_index(bss); 941 942 dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) { 943 if (w->wiphy_idx == wiphy_idx) 944 goto add; 945 } 946 947 /* alloc new one */ 948 w = os_zalloc(sizeof(*w)); 949 if (w == NULL) 950 return NULL; 951 w->wiphy_idx = wiphy_idx; 952 dl_list_init(&w->bsss); 953 dl_list_init(&w->drvs); 954 955 w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 956 if (!w->nl_cb) { 957 os_free(w); 958 return NULL; 959 } 960 nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL); 961 nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_beacon_event, 962 w); 963 964 w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb, 965 "wiphy beacons"); 966 if (w->nl_beacons == NULL) { 967 os_free(w); 968 return NULL; 969 } 970 971 if (nl80211_register_beacons(bss->drv, w)) { 972 nl_destroy_handles(&w->nl_beacons); 973 os_free(w); 974 return NULL; 975 } 976 977 nl80211_register_eloop_read(&w->nl_beacons, nl80211_recv_beacons, w); 978 979 dl_list_add(&nl80211_wiphys, &w->list); 980 981add: 982 /* drv entry for this bss already there? */ 983 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { 984 if (tmp_bss->drv == bss->drv) { 985 found = 1; 986 break; 987 } 988 } 989 /* if not add it */ 990 if (!found) 991 dl_list_add(&w->drvs, &bss->drv->wiphy_list); 992 993 dl_list_add(&w->bsss, &bss->wiphy_list); 994 bss->wiphy_data = w; 995 return w; 996} 997 998 999static void nl80211_put_wiphy_data_ap(struct i802_bss *bss) 1000{ 1001 struct nl80211_wiphy_data *w = bss->wiphy_data; 1002 struct i802_bss *tmp_bss; 1003 int found = 0; 1004 1005 if (w == NULL) 1006 return; 1007 bss->wiphy_data = NULL; 1008 dl_list_del(&bss->wiphy_list); 1009 1010 /* still any for this drv present? */ 1011 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { 1012 if (tmp_bss->drv == bss->drv) { 1013 found = 1; 1014 break; 1015 } 1016 } 1017 /* if not remove it */ 1018 if (!found) 1019 dl_list_del(&bss->drv->wiphy_list); 1020 1021 if (!dl_list_empty(&w->bsss)) 1022 return; 1023 1024 nl80211_destroy_eloop_handle(&w->nl_beacons); 1025 1026 nl_cb_put(w->nl_cb); 1027 dl_list_del(&w->list); 1028 os_free(w); 1029} 1030 1031 1032static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid) 1033{ 1034 struct i802_bss *bss = priv; 1035 struct wpa_driver_nl80211_data *drv = bss->drv; 1036 if (!drv->associated) 1037 return -1; 1038 os_memcpy(bssid, drv->bssid, ETH_ALEN); 1039 return 0; 1040} 1041 1042 1043static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid) 1044{ 1045 struct i802_bss *bss = priv; 1046 struct wpa_driver_nl80211_data *drv = bss->drv; 1047 if (!drv->associated) 1048 return -1; 1049 os_memcpy(ssid, drv->ssid, drv->ssid_len); 1050 return drv->ssid_len; 1051} 1052 1053 1054static void wpa_driver_nl80211_event_newlink( 1055 struct wpa_driver_nl80211_data *drv, char *ifname) 1056{ 1057 union wpa_event_data event; 1058 1059 if (os_strcmp(drv->first_bss->ifname, ifname) == 0) { 1060 if (if_nametoindex(drv->first_bss->ifname) == 0) { 1061 wpa_printf(MSG_DEBUG, "nl80211: Interface %s does not exist - ignore RTM_NEWLINK", 1062 drv->first_bss->ifname); 1063 return; 1064 } 1065 if (!drv->if_removed) 1066 return; 1067 wpa_printf(MSG_DEBUG, "nl80211: Mark if_removed=0 for %s based on RTM_NEWLINK event", 1068 drv->first_bss->ifname); 1069 drv->if_removed = 0; 1070 } 1071 1072 os_memset(&event, 0, sizeof(event)); 1073 os_strlcpy(event.interface_status.ifname, ifname, 1074 sizeof(event.interface_status.ifname)); 1075 event.interface_status.ievent = EVENT_INTERFACE_ADDED; 1076 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); 1077} 1078 1079 1080static void wpa_driver_nl80211_event_dellink( 1081 struct wpa_driver_nl80211_data *drv, char *ifname) 1082{ 1083 union wpa_event_data event; 1084 1085 if (os_strcmp(drv->first_bss->ifname, ifname) == 0) { 1086 if (drv->if_removed) { 1087 wpa_printf(MSG_DEBUG, "nl80211: if_removed already set - ignore RTM_DELLINK event for %s", 1088 ifname); 1089 return; 1090 } 1091 wpa_printf(MSG_DEBUG, "RTM_DELLINK: Interface '%s' removed - mark if_removed=1", 1092 ifname); 1093 drv->if_removed = 1; 1094 } else { 1095 wpa_printf(MSG_DEBUG, "RTM_DELLINK: Interface '%s' removed", 1096 ifname); 1097 } 1098 1099 os_memset(&event, 0, sizeof(event)); 1100 os_strlcpy(event.interface_status.ifname, ifname, 1101 sizeof(event.interface_status.ifname)); 1102 event.interface_status.ievent = EVENT_INTERFACE_REMOVED; 1103 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); 1104} 1105 1106 1107static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv, 1108 u8 *buf, size_t len) 1109{ 1110 int attrlen, rta_len; 1111 struct rtattr *attr; 1112 1113 attrlen = len; 1114 attr = (struct rtattr *) buf; 1115 1116 rta_len = RTA_ALIGN(sizeof(struct rtattr)); 1117 while (RTA_OK(attr, attrlen)) { 1118 if (attr->rta_type == IFLA_IFNAME) { 1119 if (os_strcmp(((char *) attr) + rta_len, 1120 drv->first_bss->ifname) == 0) 1121 return 1; 1122 else 1123 break; 1124 } 1125 attr = RTA_NEXT(attr, attrlen); 1126 } 1127 1128 return 0; 1129} 1130 1131 1132static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv, 1133 int ifindex, u8 *buf, size_t len) 1134{ 1135 if (drv->ifindex == ifindex) 1136 return 1; 1137 1138 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) { 1139 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed " 1140 "interface"); 1141 wpa_driver_nl80211_finish_drv_init(drv, NULL, 0); 1142 return 1; 1143 } 1144 1145 return 0; 1146} 1147 1148 1149static struct wpa_driver_nl80211_data * 1150nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len) 1151{ 1152 struct wpa_driver_nl80211_data *drv; 1153 dl_list_for_each(drv, &global->interfaces, 1154 struct wpa_driver_nl80211_data, list) { 1155 if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) || 1156 have_ifidx(drv, idx)) 1157 return drv; 1158 } 1159 return NULL; 1160} 1161 1162 1163static void wpa_driver_nl80211_event_rtm_newlink(void *ctx, 1164 struct ifinfomsg *ifi, 1165 u8 *buf, size_t len) 1166{ 1167 struct nl80211_global *global = ctx; 1168 struct wpa_driver_nl80211_data *drv; 1169 int attrlen; 1170 struct rtattr *attr; 1171 u32 brid = 0; 1172 char namebuf[IFNAMSIZ]; 1173 char ifname[IFNAMSIZ + 1]; 1174 char extra[100], *pos, *end; 1175 1176 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); 1177 if (!drv) { 1178 wpa_printf(MSG_DEBUG, "nl80211: Ignore RTM_NEWLINK event for foreign ifindex %d", 1179 ifi->ifi_index); 1180 return; 1181 } 1182 1183 extra[0] = '\0'; 1184 pos = extra; 1185 end = pos + sizeof(extra); 1186 ifname[0] = '\0'; 1187 1188 attrlen = len; 1189 attr = (struct rtattr *) buf; 1190 while (RTA_OK(attr, attrlen)) { 1191 switch (attr->rta_type) { 1192 case IFLA_IFNAME: 1193 if (RTA_PAYLOAD(attr) >= IFNAMSIZ) 1194 break; 1195 os_memcpy(ifname, RTA_DATA(attr), RTA_PAYLOAD(attr)); 1196 ifname[RTA_PAYLOAD(attr)] = '\0'; 1197 break; 1198 case IFLA_MASTER: 1199 brid = nla_get_u32((struct nlattr *) attr); 1200 pos += os_snprintf(pos, end - pos, " master=%u", brid); 1201 break; 1202 case IFLA_WIRELESS: 1203 pos += os_snprintf(pos, end - pos, " wext"); 1204 break; 1205 case IFLA_OPERSTATE: 1206 pos += os_snprintf(pos, end - pos, " operstate=%u", 1207 nla_get_u32((struct nlattr *) attr)); 1208 break; 1209 case IFLA_LINKMODE: 1210 pos += os_snprintf(pos, end - pos, " linkmode=%u", 1211 nla_get_u32((struct nlattr *) attr)); 1212 break; 1213 } 1214 attr = RTA_NEXT(attr, attrlen); 1215 } 1216 extra[sizeof(extra) - 1] = '\0'; 1217 1218 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: ifi_index=%d ifname=%s%s ifi_flags=0x%x (%s%s%s%s)", 1219 ifi->ifi_index, ifname, extra, ifi->ifi_flags, 1220 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "", 1221 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "", 1222 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "", 1223 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : ""); 1224 1225 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) { 1226 if (if_indextoname(ifi->ifi_index, namebuf) && 1227 linux_iface_up(drv->global->ioctl_sock, 1228 drv->first_bss->ifname) > 0) { 1229 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " 1230 "event since interface %s is up", namebuf); 1231 return; 1232 } 1233 wpa_printf(MSG_DEBUG, "nl80211: Interface down"); 1234 if (drv->ignore_if_down_event) { 1235 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " 1236 "event generated by mode change"); 1237 drv->ignore_if_down_event = 0; 1238 } else { 1239 drv->if_disabled = 1; 1240 wpa_supplicant_event(drv->ctx, 1241 EVENT_INTERFACE_DISABLED, NULL); 1242 } 1243 } 1244 1245 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) { 1246 if (if_indextoname(ifi->ifi_index, namebuf) && 1247 linux_iface_up(drv->global->ioctl_sock, 1248 drv->first_bss->ifname) == 0) { 1249 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1250 "event since interface %s is down", 1251 namebuf); 1252 } else if (if_nametoindex(drv->first_bss->ifname) == 0) { 1253 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1254 "event since interface %s does not exist", 1255 drv->first_bss->ifname); 1256 } else if (drv->if_removed) { 1257 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1258 "event since interface %s is marked " 1259 "removed", drv->first_bss->ifname); 1260 } else { 1261 wpa_printf(MSG_DEBUG, "nl80211: Interface up"); 1262 drv->if_disabled = 0; 1263 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED, 1264 NULL); 1265 } 1266 } 1267 1268 /* 1269 * Some drivers send the association event before the operup event--in 1270 * this case, lifting operstate in wpa_driver_nl80211_set_operstate() 1271 * fails. This will hit us when wpa_supplicant does not need to do 1272 * IEEE 802.1X authentication 1273 */ 1274 if (drv->operstate == 1 && 1275 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP && 1276 !(ifi->ifi_flags & IFF_RUNNING)) { 1277 wpa_printf(MSG_DEBUG, "nl80211: Set IF_OPER_UP again based on ifi_flags and expected operstate"); 1278 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 1279 -1, IF_OPER_UP); 1280 } 1281 1282 if (ifname[0]) 1283 wpa_driver_nl80211_event_newlink(drv, ifname); 1284 1285 if (ifi->ifi_family == AF_BRIDGE && brid) { 1286 /* device has been added to bridge */ 1287 if_indextoname(brid, namebuf); 1288 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s", 1289 brid, namebuf); 1290 add_ifidx(drv, brid); 1291 } 1292} 1293 1294 1295static void wpa_driver_nl80211_event_rtm_dellink(void *ctx, 1296 struct ifinfomsg *ifi, 1297 u8 *buf, size_t len) 1298{ 1299 struct nl80211_global *global = ctx; 1300 struct wpa_driver_nl80211_data *drv; 1301 int attrlen; 1302 struct rtattr *attr; 1303 u32 brid = 0; 1304 char ifname[IFNAMSIZ + 1]; 1305 1306 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); 1307 if (!drv) { 1308 wpa_printf(MSG_DEBUG, "nl80211: Ignore RTM_DELLINK event for foreign ifindex %d", 1309 ifi->ifi_index); 1310 return; 1311 } 1312 1313 ifname[0] = '\0'; 1314 1315 attrlen = len; 1316 attr = (struct rtattr *) buf; 1317 while (RTA_OK(attr, attrlen)) { 1318 switch (attr->rta_type) { 1319 case IFLA_IFNAME: 1320 if (RTA_PAYLOAD(attr) >= IFNAMSIZ) 1321 break; 1322 os_memcpy(ifname, RTA_DATA(attr), RTA_PAYLOAD(attr)); 1323 ifname[RTA_PAYLOAD(attr)] = '\0'; 1324 break; 1325 case IFLA_MASTER: 1326 brid = nla_get_u32((struct nlattr *) attr); 1327 break; 1328 } 1329 attr = RTA_NEXT(attr, attrlen); 1330 } 1331 1332 if (ifname[0]) 1333 wpa_driver_nl80211_event_dellink(drv, ifname); 1334 1335 if (ifi->ifi_family == AF_BRIDGE && brid) { 1336 /* device has been removed from bridge */ 1337 char namebuf[IFNAMSIZ]; 1338 if_indextoname(brid, namebuf); 1339 wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge " 1340 "%s", brid, namebuf); 1341 del_ifidx(drv, brid); 1342 } 1343} 1344 1345 1346static void mlme_event_auth(struct wpa_driver_nl80211_data *drv, 1347 const u8 *frame, size_t len) 1348{ 1349 const struct ieee80211_mgmt *mgmt; 1350 union wpa_event_data event; 1351 1352 wpa_printf(MSG_DEBUG, "nl80211: Authenticate event"); 1353 mgmt = (const struct ieee80211_mgmt *) frame; 1354 if (len < 24 + sizeof(mgmt->u.auth)) { 1355 wpa_printf(MSG_DEBUG, "nl80211: Too short association event " 1356 "frame"); 1357 return; 1358 } 1359 1360 os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN); 1361 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 1362 os_memset(&event, 0, sizeof(event)); 1363 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN); 1364 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg); 1365 event.auth.auth_transaction = 1366 le_to_host16(mgmt->u.auth.auth_transaction); 1367 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code); 1368 if (len > 24 + sizeof(mgmt->u.auth)) { 1369 event.auth.ies = mgmt->u.auth.variable; 1370 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth); 1371 } 1372 1373 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event); 1374} 1375 1376 1377static unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv) 1378{ 1379 struct nl_msg *msg; 1380 int ret; 1381 struct nl80211_bss_info_arg arg; 1382 1383 os_memset(&arg, 0, sizeof(arg)); 1384 msg = nlmsg_alloc(); 1385 if (!msg) 1386 goto nla_put_failure; 1387 1388 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 1389 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 1390 1391 arg.drv = drv; 1392 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 1393 msg = NULL; 1394 if (ret == 0) { 1395 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the " 1396 "associated BSS from scan results: %u MHz", 1397 arg.assoc_freq); 1398 if (arg.assoc_freq) 1399 drv->assoc_freq = arg.assoc_freq; 1400 return drv->assoc_freq; 1401 } 1402 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 1403 "(%s)", ret, strerror(-ret)); 1404nla_put_failure: 1405 nlmsg_free(msg); 1406 return drv->assoc_freq; 1407} 1408 1409 1410static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv, 1411 const u8 *frame, size_t len) 1412{ 1413 const struct ieee80211_mgmt *mgmt; 1414 union wpa_event_data event; 1415 u16 status; 1416 1417 wpa_printf(MSG_DEBUG, "nl80211: Associate event"); 1418 mgmt = (const struct ieee80211_mgmt *) frame; 1419 if (len < 24 + sizeof(mgmt->u.assoc_resp)) { 1420 wpa_printf(MSG_DEBUG, "nl80211: Too short association event " 1421 "frame"); 1422 return; 1423 } 1424 1425 status = le_to_host16(mgmt->u.assoc_resp.status_code); 1426 if (status != WLAN_STATUS_SUCCESS) { 1427 os_memset(&event, 0, sizeof(event)); 1428 event.assoc_reject.bssid = mgmt->bssid; 1429 if (len > 24 + sizeof(mgmt->u.assoc_resp)) { 1430 event.assoc_reject.resp_ies = 1431 (u8 *) mgmt->u.assoc_resp.variable; 1432 event.assoc_reject.resp_ies_len = 1433 len - 24 - sizeof(mgmt->u.assoc_resp); 1434 } 1435 event.assoc_reject.status_code = status; 1436 1437 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); 1438 return; 1439 } 1440 1441 drv->associated = 1; 1442 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN); 1443 os_memcpy(drv->prev_bssid, mgmt->sa, ETH_ALEN); 1444 1445 os_memset(&event, 0, sizeof(event)); 1446 if (len > 24 + sizeof(mgmt->u.assoc_resp)) { 1447 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable; 1448 event.assoc_info.resp_ies_len = 1449 len - 24 - sizeof(mgmt->u.assoc_resp); 1450 } 1451 1452 event.assoc_info.freq = drv->assoc_freq; 1453 1454 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); 1455} 1456 1457 1458static void mlme_event_connect(struct wpa_driver_nl80211_data *drv, 1459 enum nl80211_commands cmd, struct nlattr *status, 1460 struct nlattr *addr, struct nlattr *req_ie, 1461 struct nlattr *resp_ie) 1462{ 1463 union wpa_event_data event; 1464 1465 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 1466 /* 1467 * Avoid reporting two association events that would confuse 1468 * the core code. 1469 */ 1470 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) " 1471 "when using userspace SME", cmd); 1472 return; 1473 } 1474 1475 if (cmd == NL80211_CMD_CONNECT) 1476 wpa_printf(MSG_DEBUG, "nl80211: Connect event"); 1477 else if (cmd == NL80211_CMD_ROAM) 1478 wpa_printf(MSG_DEBUG, "nl80211: Roam event"); 1479 1480 os_memset(&event, 0, sizeof(event)); 1481 if (cmd == NL80211_CMD_CONNECT && 1482 nla_get_u16(status) != WLAN_STATUS_SUCCESS) { 1483 if (addr) 1484 event.assoc_reject.bssid = nla_data(addr); 1485 if (resp_ie) { 1486 event.assoc_reject.resp_ies = nla_data(resp_ie); 1487 event.assoc_reject.resp_ies_len = nla_len(resp_ie); 1488 } 1489 event.assoc_reject.status_code = nla_get_u16(status); 1490 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); 1491 return; 1492 } 1493 1494 drv->associated = 1; 1495 if (addr) { 1496 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN); 1497 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); 1498 } 1499 1500 if (req_ie) { 1501 event.assoc_info.req_ies = nla_data(req_ie); 1502 event.assoc_info.req_ies_len = nla_len(req_ie); 1503 } 1504 if (resp_ie) { 1505 event.assoc_info.resp_ies = nla_data(resp_ie); 1506 event.assoc_info.resp_ies_len = nla_len(resp_ie); 1507 } 1508 1509 event.assoc_info.freq = nl80211_get_assoc_freq(drv); 1510 1511 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); 1512} 1513 1514 1515static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv, 1516 struct nlattr *reason, struct nlattr *addr, 1517 struct nlattr *by_ap) 1518{ 1519 union wpa_event_data data; 1520 unsigned int locally_generated = by_ap == NULL; 1521 1522 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 1523 /* 1524 * Avoid reporting two disassociation events that could 1525 * confuse the core code. 1526 */ 1527 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " 1528 "event when using userspace SME"); 1529 return; 1530 } 1531 1532 if (drv->ignore_next_local_disconnect) { 1533 drv->ignore_next_local_disconnect = 0; 1534 if (locally_generated) { 1535 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " 1536 "event triggered during reassociation"); 1537 return; 1538 } 1539 wpa_printf(MSG_WARNING, "nl80211: Was expecting local " 1540 "disconnect but got another disconnect " 1541 "event first"); 1542 } 1543 1544 wpa_printf(MSG_DEBUG, "nl80211: Disconnect event"); 1545 nl80211_mark_disconnected(drv); 1546 os_memset(&data, 0, sizeof(data)); 1547 if (reason) 1548 data.deauth_info.reason_code = nla_get_u16(reason); 1549 data.deauth_info.locally_generated = by_ap == NULL; 1550 wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, &data); 1551} 1552 1553 1554static int calculate_chan_offset(int width, int freq, int cf1, int cf2) 1555{ 1556 int freq1 = 0; 1557 1558 switch (convert2width(width)) { 1559 case CHAN_WIDTH_20_NOHT: 1560 case CHAN_WIDTH_20: 1561 return 0; 1562 case CHAN_WIDTH_40: 1563 freq1 = cf1 - 10; 1564 break; 1565 case CHAN_WIDTH_80: 1566 freq1 = cf1 - 30; 1567 break; 1568 case CHAN_WIDTH_160: 1569 freq1 = cf1 - 70; 1570 break; 1571 case CHAN_WIDTH_UNKNOWN: 1572 case CHAN_WIDTH_80P80: 1573 /* FIXME: implement this */ 1574 return 0; 1575 } 1576 1577 return (abs(freq - freq1) / 20) % 2 == 0 ? 1 : -1; 1578} 1579 1580 1581static void mlme_event_ch_switch(struct wpa_driver_nl80211_data *drv, 1582 struct nlattr *ifindex, struct nlattr *freq, 1583 struct nlattr *type, struct nlattr *bw, 1584 struct nlattr *cf1, struct nlattr *cf2) 1585{ 1586 struct i802_bss *bss; 1587 union wpa_event_data data; 1588 int ht_enabled = 1; 1589 int chan_offset = 0; 1590 int ifidx; 1591 1592 wpa_printf(MSG_DEBUG, "nl80211: Channel switch event"); 1593 1594 if (!freq) 1595 return; 1596 1597 ifidx = nla_get_u32(ifindex); 1598 for (bss = drv->first_bss; bss; bss = bss->next) 1599 if (bss->ifindex == ifidx) 1600 break; 1601 1602 if (bss == NULL) { 1603 wpa_printf(MSG_WARNING, "nl80211: Unknown ifindex (%d) for channel switch, ignoring", 1604 ifidx); 1605 return; 1606 } 1607 1608 if (type) { 1609 switch (nla_get_u32(type)) { 1610 case NL80211_CHAN_NO_HT: 1611 ht_enabled = 0; 1612 break; 1613 case NL80211_CHAN_HT20: 1614 break; 1615 case NL80211_CHAN_HT40PLUS: 1616 chan_offset = 1; 1617 break; 1618 case NL80211_CHAN_HT40MINUS: 1619 chan_offset = -1; 1620 break; 1621 } 1622 } else if (bw && cf1) { 1623 /* This can happen for example with VHT80 ch switch */ 1624 chan_offset = calculate_chan_offset(nla_get_u32(bw), 1625 nla_get_u32(freq), 1626 nla_get_u32(cf1), 1627 cf2 ? nla_get_u32(cf2) : 0); 1628 } else { 1629 wpa_printf(MSG_WARNING, "nl80211: Unknown secondary channel information - following channel definition calculations may fail"); 1630 } 1631 1632 os_memset(&data, 0, sizeof(data)); 1633 data.ch_switch.freq = nla_get_u32(freq); 1634 data.ch_switch.ht_enabled = ht_enabled; 1635 data.ch_switch.ch_offset = chan_offset; 1636 if (bw) 1637 data.ch_switch.ch_width = convert2width(nla_get_u32(bw)); 1638 if (cf1) 1639 data.ch_switch.cf1 = nla_get_u32(cf1); 1640 if (cf2) 1641 data.ch_switch.cf2 = nla_get_u32(cf2); 1642 1643 bss->freq = data.ch_switch.freq; 1644 1645 wpa_supplicant_event(drv->ctx, EVENT_CH_SWITCH, &data); 1646} 1647 1648 1649static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv, 1650 enum nl80211_commands cmd, struct nlattr *addr) 1651{ 1652 union wpa_event_data event; 1653 enum wpa_event_type ev; 1654 1655 if (nla_len(addr) != ETH_ALEN) 1656 return; 1657 1658 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR, 1659 cmd, MAC2STR((u8 *) nla_data(addr))); 1660 1661 if (cmd == NL80211_CMD_AUTHENTICATE) 1662 ev = EVENT_AUTH_TIMED_OUT; 1663 else if (cmd == NL80211_CMD_ASSOCIATE) 1664 ev = EVENT_ASSOC_TIMED_OUT; 1665 else 1666 return; 1667 1668 os_memset(&event, 0, sizeof(event)); 1669 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN); 1670 wpa_supplicant_event(drv->ctx, ev, &event); 1671} 1672 1673 1674static void mlme_event_mgmt(struct wpa_driver_nl80211_data *drv, 1675 struct nlattr *freq, struct nlattr *sig, 1676 const u8 *frame, size_t len) 1677{ 1678 const struct ieee80211_mgmt *mgmt; 1679 union wpa_event_data event; 1680 u16 fc, stype; 1681 int ssi_signal = 0; 1682 int rx_freq = 0; 1683 1684 wpa_printf(MSG_MSGDUMP, "nl80211: Frame event"); 1685 mgmt = (const struct ieee80211_mgmt *) frame; 1686 if (len < 24) { 1687 wpa_printf(MSG_DEBUG, "nl80211: Too short management frame"); 1688 return; 1689 } 1690 1691 fc = le_to_host16(mgmt->frame_control); 1692 stype = WLAN_FC_GET_STYPE(fc); 1693 1694 if (sig) 1695 ssi_signal = (s32) nla_get_u32(sig); 1696 1697 os_memset(&event, 0, sizeof(event)); 1698 if (freq) { 1699 event.rx_mgmt.freq = nla_get_u32(freq); 1700 rx_freq = drv->last_mgmt_freq = event.rx_mgmt.freq; 1701 } 1702 wpa_printf(MSG_DEBUG, 1703 "nl80211: RX frame freq=%d ssi_signal=%d stype=%u len=%u", 1704 rx_freq, ssi_signal, stype, (unsigned int) len); 1705 event.rx_mgmt.frame = frame; 1706 event.rx_mgmt.frame_len = len; 1707 event.rx_mgmt.ssi_signal = ssi_signal; 1708 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 1709} 1710 1711 1712static void mlme_event_mgmt_tx_status(struct wpa_driver_nl80211_data *drv, 1713 struct nlattr *cookie, const u8 *frame, 1714 size_t len, struct nlattr *ack) 1715{ 1716 union wpa_event_data event; 1717 const struct ieee80211_hdr *hdr; 1718 u16 fc; 1719 1720 wpa_printf(MSG_DEBUG, "nl80211: Frame TX status event"); 1721 if (!is_ap_interface(drv->nlmode)) { 1722 u64 cookie_val; 1723 1724 if (!cookie) 1725 return; 1726 1727 cookie_val = nla_get_u64(cookie); 1728 wpa_printf(MSG_DEBUG, "nl80211: Action TX status:" 1729 " cookie=0%llx%s (ack=%d)", 1730 (long long unsigned int) cookie_val, 1731 cookie_val == drv->send_action_cookie ? 1732 " (match)" : " (unknown)", ack != NULL); 1733 if (cookie_val != drv->send_action_cookie) 1734 return; 1735 } 1736 1737 hdr = (const struct ieee80211_hdr *) frame; 1738 fc = le_to_host16(hdr->frame_control); 1739 1740 os_memset(&event, 0, sizeof(event)); 1741 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 1742 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 1743 event.tx_status.dst = hdr->addr1; 1744 event.tx_status.data = frame; 1745 event.tx_status.data_len = len; 1746 event.tx_status.ack = ack != NULL; 1747 wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event); 1748} 1749 1750 1751static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv, 1752 enum wpa_event_type type, 1753 const u8 *frame, size_t len) 1754{ 1755 const struct ieee80211_mgmt *mgmt; 1756 union wpa_event_data event; 1757 const u8 *bssid = NULL; 1758 u16 reason_code = 0; 1759 1760 if (type == EVENT_DEAUTH) 1761 wpa_printf(MSG_DEBUG, "nl80211: Deauthenticate event"); 1762 else 1763 wpa_printf(MSG_DEBUG, "nl80211: Disassociate event"); 1764 1765 mgmt = (const struct ieee80211_mgmt *) frame; 1766 if (len >= 24) { 1767 bssid = mgmt->bssid; 1768 1769 if ((drv->capa.flags & WPA_DRIVER_FLAGS_SME) && 1770 !drv->associated && 1771 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0 && 1772 os_memcmp(bssid, drv->auth_attempt_bssid, ETH_ALEN) != 0 && 1773 os_memcmp(bssid, drv->prev_bssid, ETH_ALEN) == 0) { 1774 /* 1775 * Avoid issues with some roaming cases where 1776 * disconnection event for the old AP may show up after 1777 * we have started connection with the new AP. 1778 */ 1779 wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth/disassoc event from old AP " MACSTR " when already authenticating with " MACSTR, 1780 MAC2STR(bssid), 1781 MAC2STR(drv->auth_attempt_bssid)); 1782 return; 1783 } 1784 1785 if (drv->associated != 0 && 1786 os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 && 1787 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) { 1788 /* 1789 * We have presumably received this deauth as a 1790 * response to a clear_state_mismatch() outgoing 1791 * deauth. Don't let it take us offline! 1792 */ 1793 wpa_printf(MSG_DEBUG, "nl80211: Deauth received " 1794 "from Unknown BSSID " MACSTR " -- ignoring", 1795 MAC2STR(bssid)); 1796 return; 1797 } 1798 } 1799 1800 nl80211_mark_disconnected(drv); 1801 os_memset(&event, 0, sizeof(event)); 1802 1803 /* Note: Same offset for Reason Code in both frame subtypes */ 1804 if (len >= 24 + sizeof(mgmt->u.deauth)) 1805 reason_code = le_to_host16(mgmt->u.deauth.reason_code); 1806 1807 if (type == EVENT_DISASSOC) { 1808 event.disassoc_info.locally_generated = 1809 !os_memcmp(mgmt->sa, drv->first_bss->addr, ETH_ALEN); 1810 event.disassoc_info.addr = bssid; 1811 event.disassoc_info.reason_code = reason_code; 1812 if (frame + len > mgmt->u.disassoc.variable) { 1813 event.disassoc_info.ie = mgmt->u.disassoc.variable; 1814 event.disassoc_info.ie_len = frame + len - 1815 mgmt->u.disassoc.variable; 1816 } 1817 } else { 1818 event.deauth_info.locally_generated = 1819 !os_memcmp(mgmt->sa, drv->first_bss->addr, ETH_ALEN); 1820 event.deauth_info.addr = bssid; 1821 event.deauth_info.reason_code = reason_code; 1822 if (frame + len > mgmt->u.deauth.variable) { 1823 event.deauth_info.ie = mgmt->u.deauth.variable; 1824 event.deauth_info.ie_len = frame + len - 1825 mgmt->u.deauth.variable; 1826 } 1827 } 1828 1829 wpa_supplicant_event(drv->ctx, type, &event); 1830} 1831 1832 1833static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv, 1834 enum wpa_event_type type, 1835 const u8 *frame, size_t len) 1836{ 1837 const struct ieee80211_mgmt *mgmt; 1838 union wpa_event_data event; 1839 u16 reason_code = 0; 1840 1841 if (type == EVENT_UNPROT_DEAUTH) 1842 wpa_printf(MSG_DEBUG, "nl80211: Unprot Deauthenticate event"); 1843 else 1844 wpa_printf(MSG_DEBUG, "nl80211: Unprot Disassociate event"); 1845 1846 if (len < 24) 1847 return; 1848 1849 mgmt = (const struct ieee80211_mgmt *) frame; 1850 1851 os_memset(&event, 0, sizeof(event)); 1852 /* Note: Same offset for Reason Code in both frame subtypes */ 1853 if (len >= 24 + sizeof(mgmt->u.deauth)) 1854 reason_code = le_to_host16(mgmt->u.deauth.reason_code); 1855 1856 if (type == EVENT_UNPROT_DISASSOC) { 1857 event.unprot_disassoc.sa = mgmt->sa; 1858 event.unprot_disassoc.da = mgmt->da; 1859 event.unprot_disassoc.reason_code = reason_code; 1860 } else { 1861 event.unprot_deauth.sa = mgmt->sa; 1862 event.unprot_deauth.da = mgmt->da; 1863 event.unprot_deauth.reason_code = reason_code; 1864 } 1865 1866 wpa_supplicant_event(drv->ctx, type, &event); 1867} 1868 1869 1870static void mlme_event(struct i802_bss *bss, 1871 enum nl80211_commands cmd, struct nlattr *frame, 1872 struct nlattr *addr, struct nlattr *timed_out, 1873 struct nlattr *freq, struct nlattr *ack, 1874 struct nlattr *cookie, struct nlattr *sig) 1875{ 1876 struct wpa_driver_nl80211_data *drv = bss->drv; 1877 const u8 *data; 1878 size_t len; 1879 1880 if (timed_out && addr) { 1881 mlme_timeout_event(drv, cmd, addr); 1882 return; 1883 } 1884 1885 if (frame == NULL) { 1886 wpa_printf(MSG_DEBUG, 1887 "nl80211: MLME event %d (%s) without frame data", 1888 cmd, nl80211_command_to_string(cmd)); 1889 return; 1890 } 1891 1892 data = nla_data(frame); 1893 len = nla_len(frame); 1894 if (len < 4 + 2 * ETH_ALEN) { 1895 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" 1896 MACSTR ") - too short", 1897 cmd, nl80211_command_to_string(cmd), bss->ifname, 1898 MAC2STR(bss->addr)); 1899 return; 1900 } 1901 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" MACSTR 1902 ") A1=" MACSTR " A2=" MACSTR, cmd, 1903 nl80211_command_to_string(cmd), bss->ifname, 1904 MAC2STR(bss->addr), MAC2STR(data + 4), 1905 MAC2STR(data + 4 + ETH_ALEN)); 1906 if (cmd != NL80211_CMD_FRAME_TX_STATUS && !(data[4] & 0x01) && 1907 os_memcmp(bss->addr, data + 4, ETH_ALEN) != 0 && 1908 os_memcmp(bss->addr, data + 4 + ETH_ALEN, ETH_ALEN) != 0) { 1909 wpa_printf(MSG_MSGDUMP, "nl80211: %s: Ignore MLME frame event " 1910 "for foreign address", bss->ifname); 1911 return; 1912 } 1913 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame", 1914 nla_data(frame), nla_len(frame)); 1915 1916 switch (cmd) { 1917 case NL80211_CMD_AUTHENTICATE: 1918 mlme_event_auth(drv, nla_data(frame), nla_len(frame)); 1919 break; 1920 case NL80211_CMD_ASSOCIATE: 1921 mlme_event_assoc(drv, nla_data(frame), nla_len(frame)); 1922 break; 1923 case NL80211_CMD_DEAUTHENTICATE: 1924 mlme_event_deauth_disassoc(drv, EVENT_DEAUTH, 1925 nla_data(frame), nla_len(frame)); 1926 break; 1927 case NL80211_CMD_DISASSOCIATE: 1928 mlme_event_deauth_disassoc(drv, EVENT_DISASSOC, 1929 nla_data(frame), nla_len(frame)); 1930 break; 1931 case NL80211_CMD_FRAME: 1932 mlme_event_mgmt(drv, freq, sig, nla_data(frame), 1933 nla_len(frame)); 1934 break; 1935 case NL80211_CMD_FRAME_TX_STATUS: 1936 mlme_event_mgmt_tx_status(drv, cookie, nla_data(frame), 1937 nla_len(frame), ack); 1938 break; 1939 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 1940 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH, 1941 nla_data(frame), nla_len(frame)); 1942 break; 1943 case NL80211_CMD_UNPROT_DISASSOCIATE: 1944 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC, 1945 nla_data(frame), nla_len(frame)); 1946 break; 1947 default: 1948 break; 1949 } 1950} 1951 1952 1953static void mlme_event_michael_mic_failure(struct i802_bss *bss, 1954 struct nlattr *tb[]) 1955{ 1956 union wpa_event_data data; 1957 1958 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure"); 1959 os_memset(&data, 0, sizeof(data)); 1960 if (tb[NL80211_ATTR_MAC]) { 1961 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address", 1962 nla_data(tb[NL80211_ATTR_MAC]), 1963 nla_len(tb[NL80211_ATTR_MAC])); 1964 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]); 1965 } 1966 if (tb[NL80211_ATTR_KEY_SEQ]) { 1967 wpa_hexdump(MSG_DEBUG, "nl80211: TSC", 1968 nla_data(tb[NL80211_ATTR_KEY_SEQ]), 1969 nla_len(tb[NL80211_ATTR_KEY_SEQ])); 1970 } 1971 if (tb[NL80211_ATTR_KEY_TYPE]) { 1972 enum nl80211_key_type key_type = 1973 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]); 1974 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type); 1975 if (key_type == NL80211_KEYTYPE_PAIRWISE) 1976 data.michael_mic_failure.unicast = 1; 1977 } else 1978 data.michael_mic_failure.unicast = 1; 1979 1980 if (tb[NL80211_ATTR_KEY_IDX]) { 1981 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]); 1982 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id); 1983 } 1984 1985 wpa_supplicant_event(bss->ctx, EVENT_MICHAEL_MIC_FAILURE, &data); 1986} 1987 1988 1989static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv, 1990 struct nlattr *tb[]) 1991{ 1992 if (tb[NL80211_ATTR_MAC] == NULL) { 1993 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined " 1994 "event"); 1995 return; 1996 } 1997 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 1998 1999 drv->associated = 1; 2000 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined", 2001 MAC2STR(drv->bssid)); 2002 2003 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL); 2004} 2005 2006 2007static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv, 2008 int cancel_event, struct nlattr *tb[]) 2009{ 2010 unsigned int freq, chan_type, duration; 2011 union wpa_event_data data; 2012 u64 cookie; 2013 2014 if (tb[NL80211_ATTR_WIPHY_FREQ]) 2015 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); 2016 else 2017 freq = 0; 2018 2019 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) 2020 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); 2021 else 2022 chan_type = 0; 2023 2024 if (tb[NL80211_ATTR_DURATION]) 2025 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]); 2026 else 2027 duration = 0; 2028 2029 if (tb[NL80211_ATTR_COOKIE]) 2030 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 2031 else 2032 cookie = 0; 2033 2034 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d " 2035 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))", 2036 cancel_event, freq, chan_type, duration, 2037 (long long unsigned int) cookie, 2038 cookie == drv->remain_on_chan_cookie ? "match" : "unknown"); 2039 2040 if (cookie != drv->remain_on_chan_cookie) 2041 return; /* not for us */ 2042 2043 if (cancel_event) 2044 drv->pending_remain_on_chan = 0; 2045 2046 os_memset(&data, 0, sizeof(data)); 2047 data.remain_on_channel.freq = freq; 2048 data.remain_on_channel.duration = duration; 2049 wpa_supplicant_event(drv->ctx, cancel_event ? 2050 EVENT_CANCEL_REMAIN_ON_CHANNEL : 2051 EVENT_REMAIN_ON_CHANNEL, &data); 2052} 2053 2054 2055static void mlme_event_ft_event(struct wpa_driver_nl80211_data *drv, 2056 struct nlattr *tb[]) 2057{ 2058 union wpa_event_data data; 2059 2060 os_memset(&data, 0, sizeof(data)); 2061 2062 if (tb[NL80211_ATTR_IE]) { 2063 data.ft_ies.ies = nla_data(tb[NL80211_ATTR_IE]); 2064 data.ft_ies.ies_len = nla_len(tb[NL80211_ATTR_IE]); 2065 } 2066 2067 if (tb[NL80211_ATTR_IE_RIC]) { 2068 data.ft_ies.ric_ies = nla_data(tb[NL80211_ATTR_IE_RIC]); 2069 data.ft_ies.ric_ies_len = nla_len(tb[NL80211_ATTR_IE_RIC]); 2070 } 2071 2072 if (tb[NL80211_ATTR_MAC]) 2073 os_memcpy(data.ft_ies.target_ap, 2074 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2075 2076 wpa_printf(MSG_DEBUG, "nl80211: FT event target_ap " MACSTR, 2077 MAC2STR(data.ft_ies.target_ap)); 2078 2079 wpa_supplicant_event(drv->ctx, EVENT_FT_RESPONSE, &data); 2080} 2081 2082 2083static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted, 2084 struct nlattr *tb[]) 2085{ 2086 union wpa_event_data event; 2087 struct nlattr *nl; 2088 int rem; 2089 struct scan_info *info; 2090#define MAX_REPORT_FREQS 50 2091 int freqs[MAX_REPORT_FREQS]; 2092 int num_freqs = 0; 2093 2094 if (drv->scan_for_auth) { 2095 drv->scan_for_auth = 0; 2096 wpa_printf(MSG_DEBUG, "nl80211: Scan results for missing " 2097 "cfg80211 BSS entry"); 2098 wpa_driver_nl80211_authenticate_retry(drv); 2099 return; 2100 } 2101 2102 os_memset(&event, 0, sizeof(event)); 2103 info = &event.scan_info; 2104 info->aborted = aborted; 2105 2106 if (tb[NL80211_ATTR_SCAN_SSIDS]) { 2107 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) { 2108 struct wpa_driver_scan_ssid *s = 2109 &info->ssids[info->num_ssids]; 2110 s->ssid = nla_data(nl); 2111 s->ssid_len = nla_len(nl); 2112 wpa_printf(MSG_DEBUG, "nl80211: Scan probed for SSID '%s'", 2113 wpa_ssid_txt(s->ssid, s->ssid_len)); 2114 info->num_ssids++; 2115 if (info->num_ssids == WPAS_MAX_SCAN_SSIDS) 2116 break; 2117 } 2118 } 2119 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) { 2120 char msg[200], *pos, *end; 2121 int res; 2122 2123 pos = msg; 2124 end = pos + sizeof(msg); 2125 *pos = '\0'; 2126 2127 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem) 2128 { 2129 freqs[num_freqs] = nla_get_u32(nl); 2130 res = os_snprintf(pos, end - pos, " %d", 2131 freqs[num_freqs]); 2132 if (res > 0 && end - pos > res) 2133 pos += res; 2134 num_freqs++; 2135 if (num_freqs == MAX_REPORT_FREQS - 1) 2136 break; 2137 } 2138 info->freqs = freqs; 2139 info->num_freqs = num_freqs; 2140 wpa_printf(MSG_DEBUG, "nl80211: Scan included frequencies:%s", 2141 msg); 2142 } 2143 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event); 2144} 2145 2146 2147static int get_link_signal(struct nl_msg *msg, void *arg) 2148{ 2149 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2150 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2151 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1]; 2152 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = { 2153 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 }, 2154 [NL80211_STA_INFO_SIGNAL_AVG] = { .type = NLA_U8 }, 2155 }; 2156 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1]; 2157 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = { 2158 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 }, 2159 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 }, 2160 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG }, 2161 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG }, 2162 }; 2163 struct wpa_signal_info *sig_change = arg; 2164 2165 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2166 genlmsg_attrlen(gnlh, 0), NULL); 2167 if (!tb[NL80211_ATTR_STA_INFO] || 2168 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX, 2169 tb[NL80211_ATTR_STA_INFO], policy)) 2170 return NL_SKIP; 2171 if (!sinfo[NL80211_STA_INFO_SIGNAL]) 2172 return NL_SKIP; 2173 2174 sig_change->current_signal = 2175 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]); 2176 2177 if (sinfo[NL80211_STA_INFO_SIGNAL_AVG]) 2178 sig_change->avg_signal = 2179 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL_AVG]); 2180 else 2181 sig_change->avg_signal = 0; 2182 2183 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) { 2184 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX, 2185 sinfo[NL80211_STA_INFO_TX_BITRATE], 2186 rate_policy)) { 2187 sig_change->current_txrate = 0; 2188 } else { 2189 if (rinfo[NL80211_RATE_INFO_BITRATE]) { 2190 sig_change->current_txrate = 2191 nla_get_u16(rinfo[ 2192 NL80211_RATE_INFO_BITRATE]) * 100; 2193 } 2194 } 2195 } 2196 2197 return NL_SKIP; 2198} 2199 2200 2201static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv, 2202 struct wpa_signal_info *sig) 2203{ 2204 struct nl_msg *msg; 2205 2206 sig->current_signal = -9999; 2207 sig->current_txrate = 0; 2208 2209 msg = nlmsg_alloc(); 2210 if (!msg) 2211 return -ENOMEM; 2212 2213 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 2214 2215 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2216 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 2217 2218 return send_and_recv_msgs(drv, msg, get_link_signal, sig); 2219 nla_put_failure: 2220 nlmsg_free(msg); 2221 return -ENOBUFS; 2222} 2223 2224 2225static int get_link_noise(struct nl_msg *msg, void *arg) 2226{ 2227 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2228 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2229 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 2230 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 2231 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 2232 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 2233 }; 2234 struct wpa_signal_info *sig_change = arg; 2235 2236 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2237 genlmsg_attrlen(gnlh, 0), NULL); 2238 2239 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 2240 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!"); 2241 return NL_SKIP; 2242 } 2243 2244 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 2245 tb[NL80211_ATTR_SURVEY_INFO], 2246 survey_policy)) { 2247 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested " 2248 "attributes!"); 2249 return NL_SKIP; 2250 } 2251 2252 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 2253 return NL_SKIP; 2254 2255 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 2256 sig_change->frequency) 2257 return NL_SKIP; 2258 2259 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 2260 return NL_SKIP; 2261 2262 sig_change->current_noise = 2263 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 2264 2265 return NL_SKIP; 2266} 2267 2268 2269static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv, 2270 struct wpa_signal_info *sig_change) 2271{ 2272 struct nl_msg *msg; 2273 2274 sig_change->current_noise = 9999; 2275 sig_change->frequency = drv->assoc_freq; 2276 2277 msg = nlmsg_alloc(); 2278 if (!msg) 2279 return -ENOMEM; 2280 2281 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 2282 2283 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2284 2285 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change); 2286 nla_put_failure: 2287 nlmsg_free(msg); 2288 return -ENOBUFS; 2289} 2290 2291 2292static int get_noise_for_scan_results(struct nl_msg *msg, void *arg) 2293{ 2294 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2295 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2296 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 2297 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 2298 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 2299 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 2300 }; 2301 struct wpa_scan_results *scan_results = arg; 2302 struct wpa_scan_res *scan_res; 2303 size_t i; 2304 2305 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2306 genlmsg_attrlen(gnlh, 0), NULL); 2307 2308 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 2309 wpa_printf(MSG_DEBUG, "nl80211: Survey data missing"); 2310 return NL_SKIP; 2311 } 2312 2313 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 2314 tb[NL80211_ATTR_SURVEY_INFO], 2315 survey_policy)) { 2316 wpa_printf(MSG_DEBUG, "nl80211: Failed to parse nested " 2317 "attributes"); 2318 return NL_SKIP; 2319 } 2320 2321 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 2322 return NL_SKIP; 2323 2324 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 2325 return NL_SKIP; 2326 2327 for (i = 0; i < scan_results->num; ++i) { 2328 scan_res = scan_results->res[i]; 2329 if (!scan_res) 2330 continue; 2331 if ((int) nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 2332 scan_res->freq) 2333 continue; 2334 if (!(scan_res->flags & WPA_SCAN_NOISE_INVALID)) 2335 continue; 2336 scan_res->noise = (s8) 2337 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 2338 scan_res->flags &= ~WPA_SCAN_NOISE_INVALID; 2339 } 2340 2341 return NL_SKIP; 2342} 2343 2344 2345static int nl80211_get_noise_for_scan_results( 2346 struct wpa_driver_nl80211_data *drv, 2347 struct wpa_scan_results *scan_res) 2348{ 2349 struct nl_msg *msg; 2350 2351 msg = nlmsg_alloc(); 2352 if (!msg) 2353 return -ENOMEM; 2354 2355 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 2356 2357 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2358 2359 return send_and_recv_msgs(drv, msg, get_noise_for_scan_results, 2360 scan_res); 2361 nla_put_failure: 2362 nlmsg_free(msg); 2363 return -ENOBUFS; 2364} 2365 2366 2367static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv, 2368 struct nlattr *tb[]) 2369{ 2370 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = { 2371 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, 2372 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 }, 2373 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, 2374 [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 }, 2375 }; 2376 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1]; 2377 enum nl80211_cqm_rssi_threshold_event event; 2378 union wpa_event_data ed; 2379 struct wpa_signal_info sig; 2380 int res; 2381 2382 if (tb[NL80211_ATTR_CQM] == NULL || 2383 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM], 2384 cqm_policy)) { 2385 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event"); 2386 return; 2387 } 2388 2389 os_memset(&ed, 0, sizeof(ed)); 2390 2391 if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) { 2392 if (!tb[NL80211_ATTR_MAC]) 2393 return; 2394 os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]), 2395 ETH_ALEN); 2396 wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed); 2397 return; 2398 } 2399 2400 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL) 2401 return; 2402 event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]); 2403 2404 if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) { 2405 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 2406 "event: RSSI high"); 2407 ed.signal_change.above_threshold = 1; 2408 } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) { 2409 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 2410 "event: RSSI low"); 2411 ed.signal_change.above_threshold = 0; 2412 } else 2413 return; 2414 2415 res = nl80211_get_link_signal(drv, &sig); 2416 if (res == 0) { 2417 ed.signal_change.current_signal = sig.current_signal; 2418 ed.signal_change.current_txrate = sig.current_txrate; 2419 wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d", 2420 sig.current_signal, sig.current_txrate); 2421 } 2422 2423 res = nl80211_get_link_noise(drv, &sig); 2424 if (res == 0) { 2425 ed.signal_change.current_noise = sig.current_noise; 2426 wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm", 2427 sig.current_noise); 2428 } 2429 2430 wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed); 2431} 2432 2433 2434static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv, 2435 struct nlattr **tb) 2436{ 2437 u8 *addr; 2438 union wpa_event_data data; 2439 2440 if (tb[NL80211_ATTR_MAC] == NULL) 2441 return; 2442 addr = nla_data(tb[NL80211_ATTR_MAC]); 2443 wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr)); 2444 2445 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2446 u8 *ies = NULL; 2447 size_t ies_len = 0; 2448 if (tb[NL80211_ATTR_IE]) { 2449 ies = nla_data(tb[NL80211_ATTR_IE]); 2450 ies_len = nla_len(tb[NL80211_ATTR_IE]); 2451 } 2452 wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len); 2453 drv_event_assoc(drv->ctx, addr, ies, ies_len, 0); 2454 return; 2455 } 2456 2457 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2458 return; 2459 2460 os_memset(&data, 0, sizeof(data)); 2461 os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN); 2462 wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data); 2463} 2464 2465 2466static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv, 2467 struct nlattr **tb) 2468{ 2469 u8 *addr; 2470 union wpa_event_data data; 2471 2472 if (tb[NL80211_ATTR_MAC] == NULL) 2473 return; 2474 addr = nla_data(tb[NL80211_ATTR_MAC]); 2475 wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR, 2476 MAC2STR(addr)); 2477 2478 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2479 drv_event_disassoc(drv->ctx, addr); 2480 return; 2481 } 2482 2483 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2484 return; 2485 2486 os_memset(&data, 0, sizeof(data)); 2487 os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN); 2488 wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data); 2489} 2490 2491 2492static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv, 2493 struct nlattr **tb) 2494{ 2495 struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA]; 2496 static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = { 2497 [NL80211_REKEY_DATA_KEK] = { 2498 .minlen = NL80211_KEK_LEN, 2499 .maxlen = NL80211_KEK_LEN, 2500 }, 2501 [NL80211_REKEY_DATA_KCK] = { 2502 .minlen = NL80211_KCK_LEN, 2503 .maxlen = NL80211_KCK_LEN, 2504 }, 2505 [NL80211_REKEY_DATA_REPLAY_CTR] = { 2506 .minlen = NL80211_REPLAY_CTR_LEN, 2507 .maxlen = NL80211_REPLAY_CTR_LEN, 2508 }, 2509 }; 2510 union wpa_event_data data; 2511 2512 if (!tb[NL80211_ATTR_MAC]) 2513 return; 2514 if (!tb[NL80211_ATTR_REKEY_DATA]) 2515 return; 2516 if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA, 2517 tb[NL80211_ATTR_REKEY_DATA], rekey_policy)) 2518 return; 2519 if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]) 2520 return; 2521 2522 os_memset(&data, 0, sizeof(data)); 2523 data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]); 2524 wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR, 2525 MAC2STR(data.driver_gtk_rekey.bssid)); 2526 data.driver_gtk_rekey.replay_ctr = 2527 nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]); 2528 wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter", 2529 data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN); 2530 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data); 2531} 2532 2533 2534static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv, 2535 struct nlattr **tb) 2536{ 2537 struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE]; 2538 static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = { 2539 [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 }, 2540 [NL80211_PMKSA_CANDIDATE_BSSID] = { 2541 .minlen = ETH_ALEN, 2542 .maxlen = ETH_ALEN, 2543 }, 2544 [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG }, 2545 }; 2546 union wpa_event_data data; 2547 2548 wpa_printf(MSG_DEBUG, "nl80211: PMKSA candidate event"); 2549 2550 if (!tb[NL80211_ATTR_PMKSA_CANDIDATE]) 2551 return; 2552 if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE, 2553 tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy)) 2554 return; 2555 if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] || 2556 !cand[NL80211_PMKSA_CANDIDATE_BSSID]) 2557 return; 2558 2559 os_memset(&data, 0, sizeof(data)); 2560 os_memcpy(data.pmkid_candidate.bssid, 2561 nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN); 2562 data.pmkid_candidate.index = 2563 nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]); 2564 data.pmkid_candidate.preauth = 2565 cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL; 2566 wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data); 2567} 2568 2569 2570static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv, 2571 struct nlattr **tb) 2572{ 2573 union wpa_event_data data; 2574 2575 wpa_printf(MSG_DEBUG, "nl80211: Probe client event"); 2576 2577 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_ACK]) 2578 return; 2579 2580 os_memset(&data, 0, sizeof(data)); 2581 os_memcpy(data.client_poll.addr, 2582 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2583 2584 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_CLIENT_POLL_OK, &data); 2585} 2586 2587 2588static void nl80211_tdls_oper_event(struct wpa_driver_nl80211_data *drv, 2589 struct nlattr **tb) 2590{ 2591 union wpa_event_data data; 2592 2593 wpa_printf(MSG_DEBUG, "nl80211: TDLS operation event"); 2594 2595 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_TDLS_OPERATION]) 2596 return; 2597 2598 os_memset(&data, 0, sizeof(data)); 2599 os_memcpy(data.tdls.peer, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2600 switch (nla_get_u8(tb[NL80211_ATTR_TDLS_OPERATION])) { 2601 case NL80211_TDLS_SETUP: 2602 wpa_printf(MSG_DEBUG, "nl80211: TDLS setup request for peer " 2603 MACSTR, MAC2STR(data.tdls.peer)); 2604 data.tdls.oper = TDLS_REQUEST_SETUP; 2605 break; 2606 case NL80211_TDLS_TEARDOWN: 2607 wpa_printf(MSG_DEBUG, "nl80211: TDLS teardown request for peer " 2608 MACSTR, MAC2STR(data.tdls.peer)); 2609 data.tdls.oper = TDLS_REQUEST_TEARDOWN; 2610 break; 2611 default: 2612 wpa_printf(MSG_DEBUG, "nl80211: Unsupported TDLS operatione " 2613 "event"); 2614 return; 2615 } 2616 if (tb[NL80211_ATTR_REASON_CODE]) { 2617 data.tdls.reason_code = 2618 nla_get_u16(tb[NL80211_ATTR_REASON_CODE]); 2619 } 2620 2621 wpa_supplicant_event(drv->ctx, EVENT_TDLS, &data); 2622} 2623 2624 2625static void nl80211_stop_ap(struct wpa_driver_nl80211_data *drv, 2626 struct nlattr **tb) 2627{ 2628 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_UNAVAILABLE, NULL); 2629} 2630 2631 2632static void nl80211_connect_failed_event(struct wpa_driver_nl80211_data *drv, 2633 struct nlattr **tb) 2634{ 2635 union wpa_event_data data; 2636 u32 reason; 2637 2638 wpa_printf(MSG_DEBUG, "nl80211: Connect failed event"); 2639 2640 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_CONN_FAILED_REASON]) 2641 return; 2642 2643 os_memset(&data, 0, sizeof(data)); 2644 os_memcpy(data.connect_failed_reason.addr, 2645 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2646 2647 reason = nla_get_u32(tb[NL80211_ATTR_CONN_FAILED_REASON]); 2648 switch (reason) { 2649 case NL80211_CONN_FAIL_MAX_CLIENTS: 2650 wpa_printf(MSG_DEBUG, "nl80211: Max client reached"); 2651 data.connect_failed_reason.code = MAX_CLIENT_REACHED; 2652 break; 2653 case NL80211_CONN_FAIL_BLOCKED_CLIENT: 2654 wpa_printf(MSG_DEBUG, "nl80211: Blocked client " MACSTR 2655 " tried to connect", 2656 MAC2STR(data.connect_failed_reason.addr)); 2657 data.connect_failed_reason.code = BLOCKED_CLIENT; 2658 break; 2659 default: 2660 wpa_printf(MSG_DEBUG, "nl8021l: Unknown connect failed reason " 2661 "%u", reason); 2662 return; 2663 } 2664 2665 wpa_supplicant_event(drv->ctx, EVENT_CONNECT_FAILED_REASON, &data); 2666} 2667 2668 2669static void nl80211_radar_event(struct wpa_driver_nl80211_data *drv, 2670 struct nlattr **tb) 2671{ 2672 union wpa_event_data data; 2673 enum nl80211_radar_event event_type; 2674 2675 if (!tb[NL80211_ATTR_WIPHY_FREQ] || !tb[NL80211_ATTR_RADAR_EVENT]) 2676 return; 2677 2678 os_memset(&data, 0, sizeof(data)); 2679 data.dfs_event.freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); 2680 event_type = nla_get_u32(tb[NL80211_ATTR_RADAR_EVENT]); 2681 2682 /* Check HT params */ 2683 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { 2684 data.dfs_event.ht_enabled = 1; 2685 data.dfs_event.chan_offset = 0; 2686 2687 switch (nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])) { 2688 case NL80211_CHAN_NO_HT: 2689 data.dfs_event.ht_enabled = 0; 2690 break; 2691 case NL80211_CHAN_HT20: 2692 break; 2693 case NL80211_CHAN_HT40PLUS: 2694 data.dfs_event.chan_offset = 1; 2695 break; 2696 case NL80211_CHAN_HT40MINUS: 2697 data.dfs_event.chan_offset = -1; 2698 break; 2699 } 2700 } 2701 2702 /* Get VHT params */ 2703 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) 2704 data.dfs_event.chan_width = 2705 convert2width(nla_get_u32( 2706 tb[NL80211_ATTR_CHANNEL_WIDTH])); 2707 if (tb[NL80211_ATTR_CENTER_FREQ1]) 2708 data.dfs_event.cf1 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); 2709 if (tb[NL80211_ATTR_CENTER_FREQ2]) 2710 data.dfs_event.cf2 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); 2711 2712 wpa_printf(MSG_DEBUG, "nl80211: DFS event on freq %d MHz, ht: %d, offset: %d, width: %d, cf1: %dMHz, cf2: %dMHz", 2713 data.dfs_event.freq, data.dfs_event.ht_enabled, 2714 data.dfs_event.chan_offset, data.dfs_event.chan_width, 2715 data.dfs_event.cf1, data.dfs_event.cf2); 2716 2717 switch (event_type) { 2718 case NL80211_RADAR_DETECTED: 2719 wpa_supplicant_event(drv->ctx, EVENT_DFS_RADAR_DETECTED, &data); 2720 break; 2721 case NL80211_RADAR_CAC_FINISHED: 2722 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_FINISHED, &data); 2723 break; 2724 case NL80211_RADAR_CAC_ABORTED: 2725 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_ABORTED, &data); 2726 break; 2727 case NL80211_RADAR_NOP_FINISHED: 2728 wpa_supplicant_event(drv->ctx, EVENT_DFS_NOP_FINISHED, &data); 2729 break; 2730 default: 2731 wpa_printf(MSG_DEBUG, "nl80211: Unknown radar event %d " 2732 "received", event_type); 2733 break; 2734 } 2735} 2736 2737 2738static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb, 2739 int wds) 2740{ 2741 struct wpa_driver_nl80211_data *drv = bss->drv; 2742 union wpa_event_data event; 2743 2744 if (!tb[NL80211_ATTR_MAC]) 2745 return; 2746 2747 os_memset(&event, 0, sizeof(event)); 2748 event.rx_from_unknown.bssid = bss->addr; 2749 event.rx_from_unknown.addr = nla_data(tb[NL80211_ATTR_MAC]); 2750 event.rx_from_unknown.wds = wds; 2751 2752 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 2753} 2754 2755 2756static void qca_nl80211_avoid_freq(struct wpa_driver_nl80211_data *drv, 2757 const u8 *data, size_t len) 2758{ 2759 u32 i, count; 2760 union wpa_event_data event; 2761 struct wpa_freq_range *range = NULL; 2762 const struct qca_avoid_freq_list *freq_range; 2763 2764 freq_range = (const struct qca_avoid_freq_list *) data; 2765 if (len < sizeof(freq_range->count)) 2766 return; 2767 2768 count = freq_range->count; 2769 if (len < sizeof(freq_range->count) + 2770 count * sizeof(struct qca_avoid_freq_range)) { 2771 wpa_printf(MSG_DEBUG, "nl80211: Ignored too short avoid frequency list (len=%u)", 2772 (unsigned int) len); 2773 return; 2774 } 2775 2776 if (count > 0) { 2777 range = os_calloc(count, sizeof(struct wpa_freq_range)); 2778 if (range == NULL) 2779 return; 2780 } 2781 2782 os_memset(&event, 0, sizeof(event)); 2783 for (i = 0; i < count; i++) { 2784 unsigned int idx = event.freq_range.num; 2785 range[idx].min = freq_range->range[i].start_freq; 2786 range[idx].max = freq_range->range[i].end_freq; 2787 wpa_printf(MSG_DEBUG, "nl80211: Avoid frequency range: %u-%u", 2788 range[idx].min, range[idx].max); 2789 if (range[idx].min > range[idx].max) { 2790 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid frequency range"); 2791 continue; 2792 } 2793 event.freq_range.num++; 2794 } 2795 event.freq_range.range = range; 2796 2797 wpa_supplicant_event(drv->ctx, EVENT_AVOID_FREQUENCIES, &event); 2798 2799 os_free(range); 2800} 2801 2802 2803static void nl80211_vendor_event_qca(struct wpa_driver_nl80211_data *drv, 2804 u32 subcmd, u8 *data, size_t len) 2805{ 2806 switch (subcmd) { 2807 case QCA_NL80211_VENDOR_SUBCMD_AVOID_FREQUENCY: 2808 qca_nl80211_avoid_freq(drv, data, len); 2809 break; 2810 default: 2811 wpa_printf(MSG_DEBUG, 2812 "nl80211: Ignore unsupported QCA vendor event %u", 2813 subcmd); 2814 break; 2815 } 2816} 2817 2818 2819static void nl80211_vendor_event(struct wpa_driver_nl80211_data *drv, 2820 struct nlattr **tb) 2821{ 2822 u32 vendor_id, subcmd, wiphy = 0; 2823 int wiphy_idx; 2824 u8 *data = NULL; 2825 size_t len = 0; 2826 2827 if (!tb[NL80211_ATTR_VENDOR_ID] || 2828 !tb[NL80211_ATTR_VENDOR_SUBCMD]) 2829 return; 2830 2831 vendor_id = nla_get_u32(tb[NL80211_ATTR_VENDOR_ID]); 2832 subcmd = nla_get_u32(tb[NL80211_ATTR_VENDOR_SUBCMD]); 2833 2834 if (tb[NL80211_ATTR_WIPHY]) 2835 wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]); 2836 2837 wpa_printf(MSG_DEBUG, "nl80211: Vendor event: wiphy=%u vendor_id=0x%x subcmd=%u", 2838 wiphy, vendor_id, subcmd); 2839 2840 if (tb[NL80211_ATTR_VENDOR_DATA]) { 2841 data = nla_data(tb[NL80211_ATTR_VENDOR_DATA]); 2842 len = nla_len(tb[NL80211_ATTR_VENDOR_DATA]); 2843 wpa_hexdump(MSG_MSGDUMP, "nl80211: Vendor data", data, len); 2844 } 2845 2846 wiphy_idx = nl80211_get_wiphy_index(drv->first_bss); 2847 if (wiphy_idx >= 0 && wiphy_idx != (int) wiphy) { 2848 wpa_printf(MSG_DEBUG, "nl80211: Ignore vendor event for foreign wiphy %u (own: %d)", 2849 wiphy, wiphy_idx); 2850 return; 2851 } 2852 2853 switch (vendor_id) { 2854 case OUI_QCA: 2855 nl80211_vendor_event_qca(drv, subcmd, data, len); 2856 break; 2857 default: 2858 wpa_printf(MSG_DEBUG, "nl80211: Ignore unsupported vendor event"); 2859 break; 2860 } 2861} 2862 2863 2864static void do_process_drv_event(struct i802_bss *bss, int cmd, 2865 struct nlattr **tb) 2866{ 2867 struct wpa_driver_nl80211_data *drv = bss->drv; 2868 union wpa_event_data data; 2869 2870 wpa_printf(MSG_DEBUG, "nl80211: Drv Event %d (%s) received for %s", 2871 cmd, nl80211_command_to_string(cmd), bss->ifname); 2872 2873 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED && 2874 (cmd == NL80211_CMD_NEW_SCAN_RESULTS || 2875 cmd == NL80211_CMD_SCAN_ABORTED)) { 2876 wpa_driver_nl80211_set_mode(drv->first_bss, 2877 drv->ap_scan_as_station); 2878 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 2879 } 2880 2881 switch (cmd) { 2882 case NL80211_CMD_TRIGGER_SCAN: 2883 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan trigger"); 2884 drv->scan_state = SCAN_STARTED; 2885 wpa_supplicant_event(drv->ctx, EVENT_SCAN_STARTED, NULL); 2886 break; 2887 case NL80211_CMD_START_SCHED_SCAN: 2888 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan started"); 2889 drv->scan_state = SCHED_SCAN_STARTED; 2890 break; 2891 case NL80211_CMD_SCHED_SCAN_STOPPED: 2892 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan stopped"); 2893 drv->scan_state = SCHED_SCAN_STOPPED; 2894 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL); 2895 break; 2896 case NL80211_CMD_NEW_SCAN_RESULTS: 2897 wpa_dbg(drv->ctx, MSG_DEBUG, 2898 "nl80211: New scan results available"); 2899 drv->scan_state = SCAN_COMPLETED; 2900 drv->scan_complete_events = 1; 2901 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 2902 drv->ctx); 2903 send_scan_event(drv, 0, tb); 2904 break; 2905 case NL80211_CMD_SCHED_SCAN_RESULTS: 2906 wpa_dbg(drv->ctx, MSG_DEBUG, 2907 "nl80211: New sched scan results available"); 2908 drv->scan_state = SCHED_SCAN_RESULTS; 2909 send_scan_event(drv, 0, tb); 2910 break; 2911 case NL80211_CMD_SCAN_ABORTED: 2912 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan aborted"); 2913 drv->scan_state = SCAN_ABORTED; 2914 /* 2915 * Need to indicate that scan results are available in order 2916 * not to make wpa_supplicant stop its scanning. 2917 */ 2918 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 2919 drv->ctx); 2920 send_scan_event(drv, 1, tb); 2921 break; 2922 case NL80211_CMD_AUTHENTICATE: 2923 case NL80211_CMD_ASSOCIATE: 2924 case NL80211_CMD_DEAUTHENTICATE: 2925 case NL80211_CMD_DISASSOCIATE: 2926 case NL80211_CMD_FRAME_TX_STATUS: 2927 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 2928 case NL80211_CMD_UNPROT_DISASSOCIATE: 2929 mlme_event(bss, cmd, tb[NL80211_ATTR_FRAME], 2930 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 2931 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 2932 tb[NL80211_ATTR_COOKIE], 2933 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 2934 break; 2935 case NL80211_CMD_CONNECT: 2936 case NL80211_CMD_ROAM: 2937 mlme_event_connect(drv, cmd, 2938 tb[NL80211_ATTR_STATUS_CODE], 2939 tb[NL80211_ATTR_MAC], 2940 tb[NL80211_ATTR_REQ_IE], 2941 tb[NL80211_ATTR_RESP_IE]); 2942 break; 2943 case NL80211_CMD_CH_SWITCH_NOTIFY: 2944 mlme_event_ch_switch(drv, 2945 tb[NL80211_ATTR_IFINDEX], 2946 tb[NL80211_ATTR_WIPHY_FREQ], 2947 tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE], 2948 tb[NL80211_ATTR_CHANNEL_WIDTH], 2949 tb[NL80211_ATTR_CENTER_FREQ1], 2950 tb[NL80211_ATTR_CENTER_FREQ2]); 2951 break; 2952 case NL80211_CMD_DISCONNECT: 2953 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE], 2954 tb[NL80211_ATTR_MAC], 2955 tb[NL80211_ATTR_DISCONNECTED_BY_AP]); 2956 break; 2957 case NL80211_CMD_MICHAEL_MIC_FAILURE: 2958 mlme_event_michael_mic_failure(bss, tb); 2959 break; 2960 case NL80211_CMD_JOIN_IBSS: 2961 mlme_event_join_ibss(drv, tb); 2962 break; 2963 case NL80211_CMD_REMAIN_ON_CHANNEL: 2964 mlme_event_remain_on_channel(drv, 0, tb); 2965 break; 2966 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL: 2967 mlme_event_remain_on_channel(drv, 1, tb); 2968 break; 2969 case NL80211_CMD_NOTIFY_CQM: 2970 nl80211_cqm_event(drv, tb); 2971 break; 2972 case NL80211_CMD_REG_CHANGE: 2973 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change"); 2974 if (tb[NL80211_ATTR_REG_INITIATOR] == NULL) 2975 break; 2976 os_memset(&data, 0, sizeof(data)); 2977 switch (nla_get_u8(tb[NL80211_ATTR_REG_INITIATOR])) { 2978 case NL80211_REGDOM_SET_BY_CORE: 2979 data.channel_list_changed.initiator = 2980 REGDOM_SET_BY_CORE; 2981 break; 2982 case NL80211_REGDOM_SET_BY_USER: 2983 data.channel_list_changed.initiator = 2984 REGDOM_SET_BY_USER; 2985 break; 2986 case NL80211_REGDOM_SET_BY_DRIVER: 2987 data.channel_list_changed.initiator = 2988 REGDOM_SET_BY_DRIVER; 2989 break; 2990 case NL80211_REGDOM_SET_BY_COUNTRY_IE: 2991 data.channel_list_changed.initiator = 2992 REGDOM_SET_BY_COUNTRY_IE; 2993 break; 2994 default: 2995 wpa_printf(MSG_DEBUG, "nl80211: Unknown reg change initiator %d received", 2996 nla_get_u8(tb[NL80211_ATTR_REG_INITIATOR])); 2997 break; 2998 } 2999 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 3000 &data); 3001 break; 3002 case NL80211_CMD_REG_BEACON_HINT: 3003 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint"); 3004 os_memset(&data, 0, sizeof(data)); 3005 data.channel_list_changed.initiator = REGDOM_BEACON_HINT; 3006 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 3007 &data); 3008 break; 3009 case NL80211_CMD_NEW_STATION: 3010 nl80211_new_station_event(drv, tb); 3011 break; 3012 case NL80211_CMD_DEL_STATION: 3013 nl80211_del_station_event(drv, tb); 3014 break; 3015 case NL80211_CMD_SET_REKEY_OFFLOAD: 3016 nl80211_rekey_offload_event(drv, tb); 3017 break; 3018 case NL80211_CMD_PMKSA_CANDIDATE: 3019 nl80211_pmksa_candidate_event(drv, tb); 3020 break; 3021 case NL80211_CMD_PROBE_CLIENT: 3022 nl80211_client_probe_event(drv, tb); 3023 break; 3024 case NL80211_CMD_TDLS_OPER: 3025 nl80211_tdls_oper_event(drv, tb); 3026 break; 3027 case NL80211_CMD_CONN_FAILED: 3028 nl80211_connect_failed_event(drv, tb); 3029 break; 3030 case NL80211_CMD_FT_EVENT: 3031 mlme_event_ft_event(drv, tb); 3032 break; 3033 case NL80211_CMD_RADAR_DETECT: 3034 nl80211_radar_event(drv, tb); 3035 break; 3036 case NL80211_CMD_STOP_AP: 3037 nl80211_stop_ap(drv, tb); 3038 break; 3039 case NL80211_CMD_VENDOR: 3040 nl80211_vendor_event(drv, tb); 3041 break; 3042 default: 3043 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Ignored unknown event " 3044 "(cmd=%d)", cmd); 3045 break; 3046 } 3047} 3048 3049 3050static int process_drv_event(struct nl_msg *msg, void *arg) 3051{ 3052 struct wpa_driver_nl80211_data *drv = arg; 3053 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3054 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3055 struct i802_bss *bss; 3056 int ifidx = -1; 3057 3058 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3059 genlmsg_attrlen(gnlh, 0), NULL); 3060 3061 if (tb[NL80211_ATTR_IFINDEX]) { 3062 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 3063 3064 for (bss = drv->first_bss; bss; bss = bss->next) 3065 if (ifidx == -1 || ifidx == bss->ifindex) { 3066 do_process_drv_event(bss, gnlh->cmd, tb); 3067 return NL_SKIP; 3068 } 3069 wpa_printf(MSG_DEBUG, 3070 "nl80211: Ignored event (cmd=%d) for foreign interface (ifindex %d)", 3071 gnlh->cmd, ifidx); 3072 } else if (tb[NL80211_ATTR_WDEV]) { 3073 u64 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 3074 wpa_printf(MSG_DEBUG, "nl80211: Process event on P2P device"); 3075 for (bss = drv->first_bss; bss; bss = bss->next) { 3076 if (bss->wdev_id_set && wdev_id == bss->wdev_id) { 3077 do_process_drv_event(bss, gnlh->cmd, tb); 3078 return NL_SKIP; 3079 } 3080 } 3081 wpa_printf(MSG_DEBUG, 3082 "nl80211: Ignored event (cmd=%d) for foreign interface (wdev 0x%llx)", 3083 gnlh->cmd, (long long unsigned int) wdev_id); 3084 } 3085 3086 return NL_SKIP; 3087} 3088 3089 3090static int process_global_event(struct nl_msg *msg, void *arg) 3091{ 3092 struct nl80211_global *global = arg; 3093 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3094 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3095 struct wpa_driver_nl80211_data *drv, *tmp; 3096 int ifidx = -1; 3097 struct i802_bss *bss; 3098 u64 wdev_id = 0; 3099 int wdev_id_set = 0; 3100 3101 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3102 genlmsg_attrlen(gnlh, 0), NULL); 3103 3104 if (tb[NL80211_ATTR_IFINDEX]) 3105 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 3106 else if (tb[NL80211_ATTR_WDEV]) { 3107 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 3108 wdev_id_set = 1; 3109 } 3110 3111 dl_list_for_each_safe(drv, tmp, &global->interfaces, 3112 struct wpa_driver_nl80211_data, list) { 3113 for (bss = drv->first_bss; bss; bss = bss->next) { 3114 if ((ifidx == -1 && !wdev_id_set) || 3115 ifidx == bss->ifindex || 3116 (wdev_id_set && bss->wdev_id_set && 3117 wdev_id == bss->wdev_id)) { 3118 do_process_drv_event(bss, gnlh->cmd, tb); 3119 return NL_SKIP; 3120 } 3121 } 3122 } 3123 3124 return NL_SKIP; 3125} 3126 3127 3128static int process_bss_event(struct nl_msg *msg, void *arg) 3129{ 3130 struct i802_bss *bss = arg; 3131 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3132 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3133 3134 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3135 genlmsg_attrlen(gnlh, 0), NULL); 3136 3137 wpa_printf(MSG_DEBUG, "nl80211: BSS Event %d (%s) received for %s", 3138 gnlh->cmd, nl80211_command_to_string(gnlh->cmd), 3139 bss->ifname); 3140 3141 switch (gnlh->cmd) { 3142 case NL80211_CMD_FRAME: 3143 case NL80211_CMD_FRAME_TX_STATUS: 3144 mlme_event(bss, gnlh->cmd, tb[NL80211_ATTR_FRAME], 3145 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 3146 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 3147 tb[NL80211_ATTR_COOKIE], 3148 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 3149 break; 3150 case NL80211_CMD_UNEXPECTED_FRAME: 3151 nl80211_spurious_frame(bss, tb, 0); 3152 break; 3153 case NL80211_CMD_UNEXPECTED_4ADDR_FRAME: 3154 nl80211_spurious_frame(bss, tb, 1); 3155 break; 3156 default: 3157 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event " 3158 "(cmd=%d)", gnlh->cmd); 3159 break; 3160 } 3161 3162 return NL_SKIP; 3163} 3164 3165 3166static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx, 3167 void *handle) 3168{ 3169 struct nl_cb *cb = eloop_ctx; 3170 int res; 3171 3172 wpa_printf(MSG_MSGDUMP, "nl80211: Event message available"); 3173 3174 res = nl_recvmsgs(handle, cb); 3175 if (res) { 3176 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d", 3177 __func__, res); 3178 } 3179} 3180 3181 3182/** 3183 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain 3184 * @priv: driver_nl80211 private data 3185 * @alpha2_arg: country to which to switch to 3186 * Returns: 0 on success, -1 on failure 3187 * 3188 * This asks nl80211 to set the regulatory domain for given 3189 * country ISO / IEC alpha2. 3190 */ 3191static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg) 3192{ 3193 struct i802_bss *bss = priv; 3194 struct wpa_driver_nl80211_data *drv = bss->drv; 3195 char alpha2[3]; 3196 struct nl_msg *msg; 3197 3198 msg = nlmsg_alloc(); 3199 if (!msg) 3200 return -ENOMEM; 3201 3202 alpha2[0] = alpha2_arg[0]; 3203 alpha2[1] = alpha2_arg[1]; 3204 alpha2[2] = '\0'; 3205 3206 nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG); 3207 3208 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2); 3209 if (send_and_recv_msgs(drv, msg, NULL, NULL)) 3210 return -EINVAL; 3211 return 0; 3212nla_put_failure: 3213 nlmsg_free(msg); 3214 return -EINVAL; 3215} 3216 3217 3218static int nl80211_get_country(struct nl_msg *msg, void *arg) 3219{ 3220 char *alpha2 = arg; 3221 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 3222 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3223 3224 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3225 genlmsg_attrlen(gnlh, 0), NULL); 3226 if (!tb_msg[NL80211_ATTR_REG_ALPHA2]) { 3227 wpa_printf(MSG_DEBUG, "nl80211: No country information available"); 3228 return NL_SKIP; 3229 } 3230 os_strlcpy(alpha2, nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]), 3); 3231 return NL_SKIP; 3232} 3233 3234 3235static int wpa_driver_nl80211_get_country(void *priv, char *alpha2) 3236{ 3237 struct i802_bss *bss = priv; 3238 struct wpa_driver_nl80211_data *drv = bss->drv; 3239 struct nl_msg *msg; 3240 int ret; 3241 3242 msg = nlmsg_alloc(); 3243 if (!msg) 3244 return -ENOMEM; 3245 3246 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 3247 alpha2[0] = '\0'; 3248 ret = send_and_recv_msgs(drv, msg, nl80211_get_country, alpha2); 3249 if (!alpha2[0]) 3250 ret = -1; 3251 3252 return ret; 3253} 3254 3255 3256static int protocol_feature_handler(struct nl_msg *msg, void *arg) 3257{ 3258 u32 *feat = arg; 3259 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 3260 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3261 3262 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3263 genlmsg_attrlen(gnlh, 0), NULL); 3264 3265 if (tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]) 3266 *feat = nla_get_u32(tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]); 3267 3268 return NL_SKIP; 3269} 3270 3271 3272static u32 get_nl80211_protocol_features(struct wpa_driver_nl80211_data *drv) 3273{ 3274 u32 feat = 0; 3275 struct nl_msg *msg; 3276 3277 msg = nlmsg_alloc(); 3278 if (!msg) 3279 goto nla_put_failure; 3280 3281 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_PROTOCOL_FEATURES); 3282 if (send_and_recv_msgs(drv, msg, protocol_feature_handler, &feat) == 0) 3283 return feat; 3284 3285 msg = NULL; 3286nla_put_failure: 3287 nlmsg_free(msg); 3288 return 0; 3289} 3290 3291 3292struct wiphy_info_data { 3293 struct wpa_driver_nl80211_data *drv; 3294 struct wpa_driver_capa *capa; 3295 3296 unsigned int num_multichan_concurrent; 3297 3298 unsigned int error:1; 3299 unsigned int device_ap_sme:1; 3300 unsigned int poll_command_supported:1; 3301 unsigned int data_tx_status:1; 3302 unsigned int monitor_supported:1; 3303 unsigned int auth_supported:1; 3304 unsigned int connect_supported:1; 3305 unsigned int p2p_go_supported:1; 3306 unsigned int p2p_client_supported:1; 3307 unsigned int p2p_concurrent:1; 3308 unsigned int channel_switch_supported:1; 3309 unsigned int set_qos_map_supported:1; 3310}; 3311 3312 3313static unsigned int probe_resp_offload_support(int supp_protocols) 3314{ 3315 unsigned int prot = 0; 3316 3317 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS) 3318 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS; 3319 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2) 3320 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2; 3321 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P) 3322 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P; 3323 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U) 3324 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING; 3325 3326 return prot; 3327} 3328 3329 3330static void wiphy_info_supported_iftypes(struct wiphy_info_data *info, 3331 struct nlattr *tb) 3332{ 3333 struct nlattr *nl_mode; 3334 int i; 3335 3336 if (tb == NULL) 3337 return; 3338 3339 nla_for_each_nested(nl_mode, tb, i) { 3340 switch (nla_type(nl_mode)) { 3341 case NL80211_IFTYPE_AP: 3342 info->capa->flags |= WPA_DRIVER_FLAGS_AP; 3343 break; 3344 case NL80211_IFTYPE_ADHOC: 3345 info->capa->flags |= WPA_DRIVER_FLAGS_IBSS; 3346 break; 3347 case NL80211_IFTYPE_P2P_DEVICE: 3348 info->capa->flags |= 3349 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 3350 break; 3351 case NL80211_IFTYPE_P2P_GO: 3352 info->p2p_go_supported = 1; 3353 break; 3354 case NL80211_IFTYPE_P2P_CLIENT: 3355 info->p2p_client_supported = 1; 3356 break; 3357 case NL80211_IFTYPE_MONITOR: 3358 info->monitor_supported = 1; 3359 break; 3360 } 3361 } 3362} 3363 3364 3365static int wiphy_info_iface_comb_process(struct wiphy_info_data *info, 3366 struct nlattr *nl_combi) 3367{ 3368 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB]; 3369 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT]; 3370 struct nlattr *nl_limit, *nl_mode; 3371 int err, rem_limit, rem_mode; 3372 int combination_has_p2p = 0, combination_has_mgd = 0; 3373 static struct nla_policy 3374 iface_combination_policy[NUM_NL80211_IFACE_COMB] = { 3375 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED }, 3376 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 }, 3377 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG }, 3378 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 }, 3379 [NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 }, 3380 }, 3381 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = { 3382 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED }, 3383 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 }, 3384 }; 3385 3386 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB, 3387 nl_combi, iface_combination_policy); 3388 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] || 3389 !tb_comb[NL80211_IFACE_COMB_MAXNUM] || 3390 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) 3391 return 0; /* broken combination */ 3392 3393 if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS]) 3394 info->capa->flags |= WPA_DRIVER_FLAGS_RADAR; 3395 3396 nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS], 3397 rem_limit) { 3398 err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT, 3399 nl_limit, iface_limit_policy); 3400 if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES]) 3401 return 0; /* broken combination */ 3402 3403 nla_for_each_nested(nl_mode, 3404 tb_limit[NL80211_IFACE_LIMIT_TYPES], 3405 rem_mode) { 3406 int ift = nla_type(nl_mode); 3407 if (ift == NL80211_IFTYPE_P2P_GO || 3408 ift == NL80211_IFTYPE_P2P_CLIENT) 3409 combination_has_p2p = 1; 3410 if (ift == NL80211_IFTYPE_STATION) 3411 combination_has_mgd = 1; 3412 } 3413 if (combination_has_p2p && combination_has_mgd) 3414 break; 3415 } 3416 3417 if (combination_has_p2p && combination_has_mgd) { 3418 info->p2p_concurrent = 1; 3419 info->num_multichan_concurrent = 3420 nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]); 3421 return 1; 3422 } 3423 3424 return 0; 3425} 3426 3427 3428static void wiphy_info_iface_comb(struct wiphy_info_data *info, 3429 struct nlattr *tb) 3430{ 3431 struct nlattr *nl_combi; 3432 int rem_combi; 3433 3434 if (tb == NULL) 3435 return; 3436 3437 nla_for_each_nested(nl_combi, tb, rem_combi) { 3438 if (wiphy_info_iface_comb_process(info, nl_combi) > 0) 3439 break; 3440 } 3441} 3442 3443 3444static void wiphy_info_supp_cmds(struct wiphy_info_data *info, 3445 struct nlattr *tb) 3446{ 3447 struct nlattr *nl_cmd; 3448 int i; 3449 3450 if (tb == NULL) 3451 return; 3452 3453 nla_for_each_nested(nl_cmd, tb, i) { 3454 switch (nla_get_u32(nl_cmd)) { 3455 case NL80211_CMD_AUTHENTICATE: 3456 info->auth_supported = 1; 3457 break; 3458 case NL80211_CMD_CONNECT: 3459 info->connect_supported = 1; 3460 break; 3461 case NL80211_CMD_START_SCHED_SCAN: 3462 info->capa->sched_scan_supported = 1; 3463 break; 3464 case NL80211_CMD_PROBE_CLIENT: 3465 info->poll_command_supported = 1; 3466 break; 3467 case NL80211_CMD_CHANNEL_SWITCH: 3468 info->channel_switch_supported = 1; 3469 break; 3470 case NL80211_CMD_SET_QOS_MAP: 3471 info->set_qos_map_supported = 1; 3472 break; 3473 } 3474 } 3475} 3476 3477 3478static void wiphy_info_cipher_suites(struct wiphy_info_data *info, 3479 struct nlattr *tb) 3480{ 3481 int i, num; 3482 u32 *ciphers; 3483 3484 if (tb == NULL) 3485 return; 3486 3487 num = nla_len(tb) / sizeof(u32); 3488 ciphers = nla_data(tb); 3489 for (i = 0; i < num; i++) { 3490 u32 c = ciphers[i]; 3491 3492 wpa_printf(MSG_DEBUG, "nl80211: Supported cipher %02x-%02x-%02x:%d", 3493 c >> 24, (c >> 16) & 0xff, 3494 (c >> 8) & 0xff, c & 0xff); 3495 switch (c) { 3496 case WLAN_CIPHER_SUITE_CCMP_256: 3497 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP_256; 3498 break; 3499 case WLAN_CIPHER_SUITE_GCMP_256: 3500 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP_256; 3501 break; 3502 case WLAN_CIPHER_SUITE_CCMP: 3503 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP; 3504 break; 3505 case WLAN_CIPHER_SUITE_GCMP: 3506 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP; 3507 break; 3508 case WLAN_CIPHER_SUITE_TKIP: 3509 info->capa->enc |= WPA_DRIVER_CAPA_ENC_TKIP; 3510 break; 3511 case WLAN_CIPHER_SUITE_WEP104: 3512 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP104; 3513 break; 3514 case WLAN_CIPHER_SUITE_WEP40: 3515 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP40; 3516 break; 3517 case WLAN_CIPHER_SUITE_AES_CMAC: 3518 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP; 3519 break; 3520 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 3521 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_128; 3522 break; 3523 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 3524 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_256; 3525 break; 3526 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 3527 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_CMAC_256; 3528 break; 3529 case WLAN_CIPHER_SUITE_NO_GROUP_ADDR: 3530 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GTK_NOT_USED; 3531 break; 3532 } 3533 } 3534} 3535 3536 3537static void wiphy_info_max_roc(struct wpa_driver_capa *capa, 3538 struct nlattr *tb) 3539{ 3540 if (tb) 3541 capa->max_remain_on_chan = nla_get_u32(tb); 3542} 3543 3544 3545static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls, 3546 struct nlattr *ext_setup) 3547{ 3548 if (tdls == NULL) 3549 return; 3550 3551 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported"); 3552 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT; 3553 3554 if (ext_setup) { 3555 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup"); 3556 capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP; 3557 } 3558} 3559 3560 3561static void wiphy_info_feature_flags(struct wiphy_info_data *info, 3562 struct nlattr *tb) 3563{ 3564 u32 flags; 3565 struct wpa_driver_capa *capa = info->capa; 3566 3567 if (tb == NULL) 3568 return; 3569 3570 flags = nla_get_u32(tb); 3571 3572 if (flags & NL80211_FEATURE_SK_TX_STATUS) 3573 info->data_tx_status = 1; 3574 3575 if (flags & NL80211_FEATURE_INACTIVITY_TIMER) 3576 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER; 3577 3578 if (flags & NL80211_FEATURE_SAE) 3579 capa->flags |= WPA_DRIVER_FLAGS_SAE; 3580 3581 if (flags & NL80211_FEATURE_NEED_OBSS_SCAN) 3582 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN; 3583} 3584 3585 3586static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa, 3587 struct nlattr *tb) 3588{ 3589 u32 protocols; 3590 3591 if (tb == NULL) 3592 return; 3593 3594 protocols = nla_get_u32(tb); 3595 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP " 3596 "mode"); 3597 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD; 3598 capa->probe_resp_offloads = probe_resp_offload_support(protocols); 3599} 3600 3601 3602static int wiphy_info_handler(struct nl_msg *msg, void *arg) 3603{ 3604 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3605 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3606 struct wiphy_info_data *info = arg; 3607 struct wpa_driver_capa *capa = info->capa; 3608 struct wpa_driver_nl80211_data *drv = info->drv; 3609 3610 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3611 genlmsg_attrlen(gnlh, 0), NULL); 3612 3613 if (tb[NL80211_ATTR_WIPHY_NAME]) 3614 os_strlcpy(drv->phyname, 3615 nla_get_string(tb[NL80211_ATTR_WIPHY_NAME]), 3616 sizeof(drv->phyname)); 3617 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]) 3618 capa->max_scan_ssids = 3619 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]); 3620 3621 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]) 3622 capa->max_sched_scan_ssids = 3623 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]); 3624 3625 if (tb[NL80211_ATTR_MAX_MATCH_SETS]) 3626 capa->max_match_sets = 3627 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]); 3628 3629 if (tb[NL80211_ATTR_MAC_ACL_MAX]) 3630 capa->max_acl_mac_addrs = 3631 nla_get_u8(tb[NL80211_ATTR_MAC_ACL_MAX]); 3632 3633 wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]); 3634 wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]); 3635 wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]); 3636 wiphy_info_cipher_suites(info, tb[NL80211_ATTR_CIPHER_SUITES]); 3637 3638 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) { 3639 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based " 3640 "off-channel TX"); 3641 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX; 3642 } 3643 3644 if (tb[NL80211_ATTR_ROAM_SUPPORT]) { 3645 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming"); 3646 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION; 3647 } 3648 3649 wiphy_info_max_roc(capa, 3650 tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]); 3651 3652 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD]) 3653 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD; 3654 3655 wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT], 3656 tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]); 3657 3658 if (tb[NL80211_ATTR_DEVICE_AP_SME]) 3659 info->device_ap_sme = 1; 3660 3661 wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]); 3662 wiphy_info_probe_resp_offload(capa, 3663 tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]); 3664 3665 if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] && 3666 drv->extended_capa == NULL) { 3667 drv->extended_capa = 3668 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3669 if (drv->extended_capa) { 3670 os_memcpy(drv->extended_capa, 3671 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 3672 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3673 drv->extended_capa_len = 3674 nla_len(tb[NL80211_ATTR_EXT_CAPA]); 3675 } 3676 drv->extended_capa_mask = 3677 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3678 if (drv->extended_capa_mask) { 3679 os_memcpy(drv->extended_capa_mask, 3680 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 3681 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3682 } else { 3683 os_free(drv->extended_capa); 3684 drv->extended_capa = NULL; 3685 drv->extended_capa_len = 0; 3686 } 3687 } 3688 3689 if (tb[NL80211_ATTR_VENDOR_DATA]) { 3690 struct nlattr *nl; 3691 int rem; 3692 3693 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_DATA], rem) { 3694 struct nl80211_vendor_cmd_info *vinfo; 3695 if (nla_len(nl) != sizeof(*vinfo)) { 3696 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info"); 3697 continue; 3698 } 3699 vinfo = nla_data(nl); 3700 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor command: vendor_id=0x%x subcmd=%u", 3701 vinfo->vendor_id, vinfo->subcmd); 3702 } 3703 } 3704 3705 if (tb[NL80211_ATTR_VENDOR_EVENTS]) { 3706 struct nlattr *nl; 3707 int rem; 3708 3709 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_EVENTS], rem) { 3710 struct nl80211_vendor_cmd_info *vinfo; 3711 if (nla_len(nl) != sizeof(*vinfo)) { 3712 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info"); 3713 continue; 3714 } 3715 vinfo = nla_data(nl); 3716 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor event: vendor_id=0x%x subcmd=%u", 3717 vinfo->vendor_id, vinfo->subcmd); 3718 } 3719 } 3720 3721 return NL_SKIP; 3722} 3723 3724 3725static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv, 3726 struct wiphy_info_data *info) 3727{ 3728 u32 feat; 3729 struct nl_msg *msg; 3730 3731 os_memset(info, 0, sizeof(*info)); 3732 info->capa = &drv->capa; 3733 info->drv = drv; 3734 3735 msg = nlmsg_alloc(); 3736 if (!msg) 3737 return -1; 3738 3739 feat = get_nl80211_protocol_features(drv); 3740 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 3741 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 3742 else 3743 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 3744 3745 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 3746 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 3747 goto nla_put_failure; 3748 3749 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info)) 3750 return -1; 3751 3752 if (info->auth_supported) 3753 drv->capa.flags |= WPA_DRIVER_FLAGS_SME; 3754 else if (!info->connect_supported) { 3755 wpa_printf(MSG_INFO, "nl80211: Driver does not support " 3756 "authentication/association or connect commands"); 3757 info->error = 1; 3758 } 3759 3760 if (info->p2p_go_supported && info->p2p_client_supported) 3761 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE; 3762 if (info->p2p_concurrent) { 3763 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 3764 "interface (driver advertised support)"); 3765 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 3766 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 3767 } 3768 if (info->num_multichan_concurrent > 1) { 3769 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel " 3770 "concurrent (driver advertised support)"); 3771 drv->capa.num_multichan_concurrent = 3772 info->num_multichan_concurrent; 3773 } 3774 3775 /* default to 5000 since early versions of mac80211 don't set it */ 3776 if (!drv->capa.max_remain_on_chan) 3777 drv->capa.max_remain_on_chan = 5000; 3778 3779 if (info->channel_switch_supported) 3780 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_CSA; 3781 3782 return 0; 3783nla_put_failure: 3784 nlmsg_free(msg); 3785 return -1; 3786} 3787 3788 3789static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv) 3790{ 3791 struct wiphy_info_data info; 3792 if (wpa_driver_nl80211_get_info(drv, &info)) 3793 return -1; 3794 3795 if (info.error) 3796 return -1; 3797 3798 drv->has_capability = 1; 3799 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA | 3800 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK | 3801 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 | 3802 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK; 3803 drv->capa.auth = WPA_DRIVER_AUTH_OPEN | 3804 WPA_DRIVER_AUTH_SHARED | 3805 WPA_DRIVER_AUTH_LEAP; 3806 3807 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES; 3808 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE; 3809 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3810 3811 if (!info.device_ap_sme) { 3812 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS; 3813 3814 /* 3815 * No AP SME is currently assumed to also indicate no AP MLME 3816 * in the driver/firmware. 3817 */ 3818 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME; 3819 } 3820 3821 drv->device_ap_sme = info.device_ap_sme; 3822 drv->poll_command_supported = info.poll_command_supported; 3823 drv->data_tx_status = info.data_tx_status; 3824 if (info.set_qos_map_supported) 3825 drv->capa.flags |= WPA_DRIVER_FLAGS_QOS_MAPPING; 3826 3827 /* 3828 * If poll command and tx status are supported, mac80211 is new enough 3829 * to have everything we need to not need monitor interfaces. 3830 */ 3831 drv->use_monitor = !info.poll_command_supported || !info.data_tx_status; 3832 3833 if (drv->device_ap_sme && drv->use_monitor) { 3834 /* 3835 * Non-mac80211 drivers may not support monitor interface. 3836 * Make sure we do not get stuck with incorrect capability here 3837 * by explicitly testing this. 3838 */ 3839 if (!info.monitor_supported) { 3840 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor " 3841 "with device_ap_sme since no monitor mode " 3842 "support detected"); 3843 drv->use_monitor = 0; 3844 } 3845 } 3846 3847 /* 3848 * If we aren't going to use monitor interfaces, but the 3849 * driver doesn't support data TX status, we won't get TX 3850 * status for EAPOL frames. 3851 */ 3852 if (!drv->use_monitor && !info.data_tx_status) 3853 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3854 3855 return 0; 3856} 3857 3858 3859#ifdef ANDROID 3860static int android_genl_ctrl_resolve(struct nl_handle *handle, 3861 const char *name) 3862{ 3863 /* 3864 * Android ICS has very minimal genl_ctrl_resolve() implementation, so 3865 * need to work around that. 3866 */ 3867 struct nl_cache *cache = NULL; 3868 struct genl_family *nl80211 = NULL; 3869 int id = -1; 3870 3871 if (genl_ctrl_alloc_cache(handle, &cache) < 0) { 3872 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic " 3873 "netlink cache"); 3874 goto fail; 3875 } 3876 3877 nl80211 = genl_ctrl_search_by_name(cache, name); 3878 if (nl80211 == NULL) 3879 goto fail; 3880 3881 id = genl_family_get_id(nl80211); 3882 3883fail: 3884 if (nl80211) 3885 genl_family_put(nl80211); 3886 if (cache) 3887 nl_cache_free(cache); 3888 3889 return id; 3890} 3891#define genl_ctrl_resolve android_genl_ctrl_resolve 3892#endif /* ANDROID */ 3893 3894 3895static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global) 3896{ 3897 int ret; 3898 3899 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3900 if (global->nl_cb == NULL) { 3901 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " 3902 "callbacks"); 3903 return -1; 3904 } 3905 3906 global->nl = nl_create_handle(global->nl_cb, "nl"); 3907 if (global->nl == NULL) 3908 goto err; 3909 3910 global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211"); 3911 if (global->nl80211_id < 0) { 3912 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not " 3913 "found"); 3914 goto err; 3915 } 3916 3917 global->nl_event = nl_create_handle(global->nl_cb, "event"); 3918 if (global->nl_event == NULL) 3919 goto err; 3920 3921 ret = nl_get_multicast_id(global, "nl80211", "scan"); 3922 if (ret >= 0) 3923 ret = nl_socket_add_membership(global->nl_event, ret); 3924 if (ret < 0) { 3925 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 3926 "membership for scan events: %d (%s)", 3927 ret, strerror(-ret)); 3928 goto err; 3929 } 3930 3931 ret = nl_get_multicast_id(global, "nl80211", "mlme"); 3932 if (ret >= 0) 3933 ret = nl_socket_add_membership(global->nl_event, ret); 3934 if (ret < 0) { 3935 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 3936 "membership for mlme events: %d (%s)", 3937 ret, strerror(-ret)); 3938 goto err; 3939 } 3940 3941 ret = nl_get_multicast_id(global, "nl80211", "regulatory"); 3942 if (ret >= 0) 3943 ret = nl_socket_add_membership(global->nl_event, ret); 3944 if (ret < 0) { 3945 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " 3946 "membership for regulatory events: %d (%s)", 3947 ret, strerror(-ret)); 3948 /* Continue without regulatory events */ 3949 } 3950 3951 ret = nl_get_multicast_id(global, "nl80211", "vendor"); 3952 if (ret >= 0) 3953 ret = nl_socket_add_membership(global->nl_event, ret); 3954 if (ret < 0) { 3955 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " 3956 "membership for vendor events: %d (%s)", 3957 ret, strerror(-ret)); 3958 /* Continue without vendor events */ 3959 } 3960 3961 nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3962 no_seq_check, NULL); 3963 nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3964 process_global_event, global); 3965 3966 nl80211_register_eloop_read(&global->nl_event, 3967 wpa_driver_nl80211_event_receive, 3968 global->nl_cb); 3969 3970 return 0; 3971 3972err: 3973 nl_destroy_handles(&global->nl_event); 3974 nl_destroy_handles(&global->nl); 3975 nl_cb_put(global->nl_cb); 3976 global->nl_cb = NULL; 3977 return -1; 3978} 3979 3980 3981static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv) 3982{ 3983 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3984 if (!drv->nl_cb) { 3985 wpa_printf(MSG_ERROR, "nl80211: Failed to alloc cb struct"); 3986 return -1; 3987 } 3988 3989 nl_cb_set(drv->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3990 no_seq_check, NULL); 3991 nl_cb_set(drv->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3992 process_drv_event, drv); 3993 3994 return 0; 3995} 3996 3997 3998static void wpa_driver_nl80211_rfkill_blocked(void *ctx) 3999{ 4000 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked"); 4001 /* 4002 * This may be for any interface; use ifdown event to disable 4003 * interface. 4004 */ 4005} 4006 4007 4008static void wpa_driver_nl80211_rfkill_unblocked(void *ctx) 4009{ 4010 struct wpa_driver_nl80211_data *drv = ctx; 4011 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked"); 4012 if (i802_set_iface_flags(drv->first_bss, 1)) { 4013 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP " 4014 "after rfkill unblock"); 4015 return; 4016 } 4017 /* rtnetlink ifup handler will report interface as enabled */ 4018} 4019 4020 4021static void wpa_driver_nl80211_handle_eapol_tx_status(int sock, 4022 void *eloop_ctx, 4023 void *handle) 4024{ 4025 struct wpa_driver_nl80211_data *drv = eloop_ctx; 4026 u8 data[2048]; 4027 struct msghdr msg; 4028 struct iovec entry; 4029 u8 control[512]; 4030 struct cmsghdr *cmsg; 4031 int res, found_ee = 0, found_wifi = 0, acked = 0; 4032 union wpa_event_data event; 4033 4034 memset(&msg, 0, sizeof(msg)); 4035 msg.msg_iov = &entry; 4036 msg.msg_iovlen = 1; 4037 entry.iov_base = data; 4038 entry.iov_len = sizeof(data); 4039 msg.msg_control = &control; 4040 msg.msg_controllen = sizeof(control); 4041 4042 res = recvmsg(sock, &msg, MSG_ERRQUEUE); 4043 /* if error or not fitting 802.3 header, return */ 4044 if (res < 14) 4045 return; 4046 4047 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) 4048 { 4049 if (cmsg->cmsg_level == SOL_SOCKET && 4050 cmsg->cmsg_type == SCM_WIFI_STATUS) { 4051 int *ack; 4052 4053 found_wifi = 1; 4054 ack = (void *)CMSG_DATA(cmsg); 4055 acked = *ack; 4056 } 4057 4058 if (cmsg->cmsg_level == SOL_PACKET && 4059 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) { 4060 struct sock_extended_err *err = 4061 (struct sock_extended_err *)CMSG_DATA(cmsg); 4062 4063 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS) 4064 found_ee = 1; 4065 } 4066 } 4067 4068 if (!found_ee || !found_wifi) 4069 return; 4070 4071 memset(&event, 0, sizeof(event)); 4072 event.eapol_tx_status.dst = data; 4073 event.eapol_tx_status.data = data + 14; 4074 event.eapol_tx_status.data_len = res - 14; 4075 event.eapol_tx_status.ack = acked; 4076 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event); 4077} 4078 4079 4080static int nl80211_init_bss(struct i802_bss *bss) 4081{ 4082 bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 4083 if (!bss->nl_cb) 4084 return -1; 4085 4086 nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 4087 no_seq_check, NULL); 4088 nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 4089 process_bss_event, bss); 4090 4091 return 0; 4092} 4093 4094 4095static void nl80211_destroy_bss(struct i802_bss *bss) 4096{ 4097 nl_cb_put(bss->nl_cb); 4098 bss->nl_cb = NULL; 4099} 4100 4101 4102static void * wpa_driver_nl80211_drv_init(void *ctx, const char *ifname, 4103 void *global_priv, int hostapd, 4104 const u8 *set_addr) 4105{ 4106 struct wpa_driver_nl80211_data *drv; 4107 struct rfkill_config *rcfg; 4108 struct i802_bss *bss; 4109 4110 if (global_priv == NULL) 4111 return NULL; 4112 drv = os_zalloc(sizeof(*drv)); 4113 if (drv == NULL) 4114 return NULL; 4115 drv->global = global_priv; 4116 drv->ctx = ctx; 4117 drv->hostapd = !!hostapd; 4118 drv->eapol_sock = -1; 4119 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int); 4120 drv->if_indices = drv->default_if_indices; 4121 4122 drv->first_bss = os_zalloc(sizeof(*drv->first_bss)); 4123 if (!drv->first_bss) { 4124 os_free(drv); 4125 return NULL; 4126 } 4127 bss = drv->first_bss; 4128 bss->drv = drv; 4129 bss->ctx = ctx; 4130 4131 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname)); 4132 drv->monitor_ifidx = -1; 4133 drv->monitor_sock = -1; 4134 drv->eapol_tx_sock = -1; 4135 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 4136 4137 if (wpa_driver_nl80211_init_nl(drv)) { 4138 os_free(drv); 4139 return NULL; 4140 } 4141 4142 if (nl80211_init_bss(bss)) 4143 goto failed; 4144 4145 rcfg = os_zalloc(sizeof(*rcfg)); 4146 if (rcfg == NULL) 4147 goto failed; 4148 rcfg->ctx = drv; 4149 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname)); 4150 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked; 4151 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked; 4152 drv->rfkill = rfkill_init(rcfg); 4153 if (drv->rfkill == NULL) { 4154 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available"); 4155 os_free(rcfg); 4156 } 4157 4158 if (linux_iface_up(drv->global->ioctl_sock, ifname) > 0) 4159 drv->start_iface_up = 1; 4160 4161 if (wpa_driver_nl80211_finish_drv_init(drv, set_addr, 1)) 4162 goto failed; 4163 4164 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0); 4165 if (drv->eapol_tx_sock < 0) 4166 goto failed; 4167 4168 if (drv->data_tx_status) { 4169 int enabled = 1; 4170 4171 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS, 4172 &enabled, sizeof(enabled)) < 0) { 4173 wpa_printf(MSG_DEBUG, 4174 "nl80211: wifi status sockopt failed\n"); 4175 drv->data_tx_status = 0; 4176 if (!drv->use_monitor) 4177 drv->capa.flags &= 4178 ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 4179 } else { 4180 eloop_register_read_sock(drv->eapol_tx_sock, 4181 wpa_driver_nl80211_handle_eapol_tx_status, 4182 drv, NULL); 4183 } 4184 } 4185 4186 if (drv->global) { 4187 dl_list_add(&drv->global->interfaces, &drv->list); 4188 drv->in_interface_list = 1; 4189 } 4190 4191 return bss; 4192 4193failed: 4194 wpa_driver_nl80211_deinit(bss); 4195 return NULL; 4196} 4197 4198 4199/** 4200 * wpa_driver_nl80211_init - Initialize nl80211 driver interface 4201 * @ctx: context to be used when calling wpa_supplicant functions, 4202 * e.g., wpa_supplicant_event() 4203 * @ifname: interface name, e.g., wlan0 4204 * @global_priv: private driver global data from global_init() 4205 * Returns: Pointer to private data, %NULL on failure 4206 */ 4207static void * wpa_driver_nl80211_init(void *ctx, const char *ifname, 4208 void *global_priv) 4209{ 4210 return wpa_driver_nl80211_drv_init(ctx, ifname, global_priv, 0, NULL); 4211} 4212 4213 4214static int nl80211_register_frame(struct i802_bss *bss, 4215 struct nl_handle *nl_handle, 4216 u16 type, const u8 *match, size_t match_len) 4217{ 4218 struct wpa_driver_nl80211_data *drv = bss->drv; 4219 struct nl_msg *msg; 4220 int ret = -1; 4221 char buf[30]; 4222 4223 msg = nlmsg_alloc(); 4224 if (!msg) 4225 return -1; 4226 4227 buf[0] = '\0'; 4228 wpa_snprintf_hex(buf, sizeof(buf), match, match_len); 4229 wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x nl_handle=%p match=%s", 4230 type, nl_handle, buf); 4231 4232 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION); 4233 4234 if (nl80211_set_iface_id(msg, bss) < 0) 4235 goto nla_put_failure; 4236 4237 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type); 4238 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match); 4239 4240 ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL); 4241 msg = NULL; 4242 if (ret) { 4243 wpa_printf(MSG_DEBUG, "nl80211: Register frame command " 4244 "failed (type=%u): ret=%d (%s)", 4245 type, ret, strerror(-ret)); 4246 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", 4247 match, match_len); 4248 goto nla_put_failure; 4249 } 4250 ret = 0; 4251nla_put_failure: 4252 nlmsg_free(msg); 4253 return ret; 4254} 4255 4256 4257static int nl80211_alloc_mgmt_handle(struct i802_bss *bss) 4258{ 4259 struct wpa_driver_nl80211_data *drv = bss->drv; 4260 4261 if (bss->nl_mgmt) { 4262 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting " 4263 "already on! (nl_mgmt=%p)", bss->nl_mgmt); 4264 return -1; 4265 } 4266 4267 bss->nl_mgmt = nl_create_handle(drv->nl_cb, "mgmt"); 4268 if (bss->nl_mgmt == NULL) 4269 return -1; 4270 4271 return 0; 4272} 4273 4274 4275static void nl80211_mgmt_handle_register_eloop(struct i802_bss *bss) 4276{ 4277 nl80211_register_eloop_read(&bss->nl_mgmt, 4278 wpa_driver_nl80211_event_receive, 4279 bss->nl_cb); 4280} 4281 4282 4283static int nl80211_register_action_frame(struct i802_bss *bss, 4284 const u8 *match, size_t match_len) 4285{ 4286 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4); 4287 return nl80211_register_frame(bss, bss->nl_mgmt, 4288 type, match, match_len); 4289} 4290 4291 4292static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss) 4293{ 4294 struct wpa_driver_nl80211_data *drv = bss->drv; 4295 int ret = 0; 4296 4297 if (nl80211_alloc_mgmt_handle(bss)) 4298 return -1; 4299 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP " 4300 "handle %p", bss->nl_mgmt); 4301 4302 if (drv->nlmode == NL80211_IFTYPE_ADHOC) { 4303 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_AUTH << 4); 4304 4305 /* register for any AUTH message */ 4306 nl80211_register_frame(bss, bss->nl_mgmt, type, NULL, 0); 4307 } 4308 4309#ifdef CONFIG_INTERWORKING 4310 /* QoS Map Configure */ 4311 if (nl80211_register_action_frame(bss, (u8 *) "\x01\x04", 2) < 0) 4312 ret = -1; 4313#endif /* CONFIG_INTERWORKING */ 4314#if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING) 4315 /* GAS Initial Request */ 4316 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0) 4317 ret = -1; 4318 /* GAS Initial Response */ 4319 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0) 4320 ret = -1; 4321 /* GAS Comeback Request */ 4322 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0) 4323 ret = -1; 4324 /* GAS Comeback Response */ 4325 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0) 4326 ret = -1; 4327 /* Protected GAS Initial Request */ 4328 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0a", 2) < 0) 4329 ret = -1; 4330 /* Protected GAS Initial Response */ 4331 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0b", 2) < 0) 4332 ret = -1; 4333 /* Protected GAS Comeback Request */ 4334 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0c", 2) < 0) 4335 ret = -1; 4336 /* Protected GAS Comeback Response */ 4337 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0d", 2) < 0) 4338 ret = -1; 4339#endif /* CONFIG_P2P || CONFIG_INTERWORKING */ 4340#ifdef CONFIG_P2P 4341 /* P2P Public Action */ 4342 if (nl80211_register_action_frame(bss, 4343 (u8 *) "\x04\x09\x50\x6f\x9a\x09", 4344 6) < 0) 4345 ret = -1; 4346 /* P2P Action */ 4347 if (nl80211_register_action_frame(bss, 4348 (u8 *) "\x7f\x50\x6f\x9a\x09", 4349 5) < 0) 4350 ret = -1; 4351#endif /* CONFIG_P2P */ 4352#ifdef CONFIG_IEEE80211W 4353 /* SA Query Response */ 4354 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0) 4355 ret = -1; 4356#endif /* CONFIG_IEEE80211W */ 4357#ifdef CONFIG_TDLS 4358 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) { 4359 /* TDLS Discovery Response */ 4360 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) < 4361 0) 4362 ret = -1; 4363 } 4364#endif /* CONFIG_TDLS */ 4365 4366 /* FT Action frames */ 4367 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0) 4368 ret = -1; 4369 else 4370 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT | 4371 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK; 4372 4373 /* WNM - BSS Transition Management Request */ 4374 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0) 4375 ret = -1; 4376 /* WNM-Sleep Mode Response */ 4377 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x11", 2) < 0) 4378 ret = -1; 4379 4380#ifdef CONFIG_HS20 4381 /* WNM-Notification */ 4382 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x1a", 2) < 0) 4383 return -1; 4384#endif /* CONFIG_HS20 */ 4385 4386 nl80211_mgmt_handle_register_eloop(bss); 4387 4388 return ret; 4389} 4390 4391 4392static int nl80211_register_spurious_class3(struct i802_bss *bss) 4393{ 4394 struct wpa_driver_nl80211_data *drv = bss->drv; 4395 struct nl_msg *msg; 4396 int ret = -1; 4397 4398 msg = nlmsg_alloc(); 4399 if (!msg) 4400 return -1; 4401 4402 nl80211_cmd(drv, msg, 0, NL80211_CMD_UNEXPECTED_FRAME); 4403 4404 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 4405 4406 ret = send_and_recv(drv->global, bss->nl_mgmt, msg, NULL, NULL); 4407 msg = NULL; 4408 if (ret) { 4409 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 " 4410 "failed: ret=%d (%s)", 4411 ret, strerror(-ret)); 4412 goto nla_put_failure; 4413 } 4414 ret = 0; 4415nla_put_failure: 4416 nlmsg_free(msg); 4417 return ret; 4418} 4419 4420 4421static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss) 4422{ 4423 static const int stypes[] = { 4424 WLAN_FC_STYPE_AUTH, 4425 WLAN_FC_STYPE_ASSOC_REQ, 4426 WLAN_FC_STYPE_REASSOC_REQ, 4427 WLAN_FC_STYPE_DISASSOC, 4428 WLAN_FC_STYPE_DEAUTH, 4429 WLAN_FC_STYPE_ACTION, 4430 WLAN_FC_STYPE_PROBE_REQ, 4431/* Beacon doesn't work as mac80211 doesn't currently allow 4432 * it, but it wouldn't really be the right thing anyway as 4433 * it isn't per interface ... maybe just dump the scan 4434 * results periodically for OLBC? 4435 */ 4436// WLAN_FC_STYPE_BEACON, 4437 }; 4438 unsigned int i; 4439 4440 if (nl80211_alloc_mgmt_handle(bss)) 4441 return -1; 4442 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 4443 "handle %p", bss->nl_mgmt); 4444 4445 for (i = 0; i < ARRAY_SIZE(stypes); i++) { 4446 if (nl80211_register_frame(bss, bss->nl_mgmt, 4447 (WLAN_FC_TYPE_MGMT << 2) | 4448 (stypes[i] << 4), 4449 NULL, 0) < 0) { 4450 goto out_err; 4451 } 4452 } 4453 4454 if (nl80211_register_spurious_class3(bss)) 4455 goto out_err; 4456 4457 if (nl80211_get_wiphy_data_ap(bss) == NULL) 4458 goto out_err; 4459 4460 nl80211_mgmt_handle_register_eloop(bss); 4461 return 0; 4462 4463out_err: 4464 nl_destroy_handles(&bss->nl_mgmt); 4465 return -1; 4466} 4467 4468 4469static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss) 4470{ 4471 if (nl80211_alloc_mgmt_handle(bss)) 4472 return -1; 4473 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 4474 "handle %p (device SME)", bss->nl_mgmt); 4475 4476 if (nl80211_register_frame(bss, bss->nl_mgmt, 4477 (WLAN_FC_TYPE_MGMT << 2) | 4478 (WLAN_FC_STYPE_ACTION << 4), 4479 NULL, 0) < 0) 4480 goto out_err; 4481 4482 nl80211_mgmt_handle_register_eloop(bss); 4483 return 0; 4484 4485out_err: 4486 nl_destroy_handles(&bss->nl_mgmt); 4487 return -1; 4488} 4489 4490 4491static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason) 4492{ 4493 if (bss->nl_mgmt == NULL) 4494 return; 4495 wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p " 4496 "(%s)", bss->nl_mgmt, reason); 4497 nl80211_destroy_eloop_handle(&bss->nl_mgmt); 4498 4499 nl80211_put_wiphy_data_ap(bss); 4500} 4501 4502 4503static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx) 4504{ 4505 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL); 4506} 4507 4508 4509static void nl80211_del_p2pdev(struct i802_bss *bss) 4510{ 4511 struct wpa_driver_nl80211_data *drv = bss->drv; 4512 struct nl_msg *msg; 4513 int ret; 4514 4515 msg = nlmsg_alloc(); 4516 if (!msg) 4517 return; 4518 4519 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 4520 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 4521 4522 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4523 msg = NULL; 4524 4525 wpa_printf(MSG_DEBUG, "nl80211: Delete P2P Device %s (0x%llx): %s", 4526 bss->ifname, (long long unsigned int) bss->wdev_id, 4527 strerror(-ret)); 4528 4529nla_put_failure: 4530 nlmsg_free(msg); 4531} 4532 4533 4534static int nl80211_set_p2pdev(struct i802_bss *bss, int start) 4535{ 4536 struct wpa_driver_nl80211_data *drv = bss->drv; 4537 struct nl_msg *msg; 4538 int ret = -1; 4539 4540 msg = nlmsg_alloc(); 4541 if (!msg) 4542 return -1; 4543 4544 if (start) 4545 nl80211_cmd(drv, msg, 0, NL80211_CMD_START_P2P_DEVICE); 4546 else 4547 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_P2P_DEVICE); 4548 4549 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 4550 4551 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4552 msg = NULL; 4553 4554 wpa_printf(MSG_DEBUG, "nl80211: %s P2P Device %s (0x%llx): %s", 4555 start ? "Start" : "Stop", 4556 bss->ifname, (long long unsigned int) bss->wdev_id, 4557 strerror(-ret)); 4558 4559nla_put_failure: 4560 nlmsg_free(msg); 4561 return ret; 4562} 4563 4564 4565static int i802_set_iface_flags(struct i802_bss *bss, int up) 4566{ 4567 enum nl80211_iftype nlmode; 4568 4569 nlmode = nl80211_get_ifmode(bss); 4570 if (nlmode != NL80211_IFTYPE_P2P_DEVICE) { 4571 return linux_set_iface_flags(bss->drv->global->ioctl_sock, 4572 bss->ifname, up); 4573 } 4574 4575 /* P2P Device has start/stop which is equivalent */ 4576 return nl80211_set_p2pdev(bss, up); 4577} 4578 4579 4580static int 4581wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv, 4582 const u8 *set_addr, int first) 4583{ 4584 struct i802_bss *bss = drv->first_bss; 4585 int send_rfkill_event = 0; 4586 enum nl80211_iftype nlmode; 4587 4588 drv->ifindex = if_nametoindex(bss->ifname); 4589 bss->ifindex = drv->ifindex; 4590 bss->wdev_id = drv->global->if_add_wdevid; 4591 bss->wdev_id_set = drv->global->if_add_wdevid_set; 4592 4593 bss->if_dynamic = drv->ifindex == drv->global->if_add_ifindex; 4594 bss->if_dynamic = bss->if_dynamic || drv->global->if_add_wdevid_set; 4595 drv->global->if_add_wdevid_set = 0; 4596 4597 if (wpa_driver_nl80211_capa(drv)) 4598 return -1; 4599 4600 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s", 4601 bss->ifname, drv->phyname); 4602 4603 if (set_addr && 4604 (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0) || 4605 linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 4606 set_addr))) 4607 return -1; 4608 4609 if (first && nl80211_get_ifmode(bss) == NL80211_IFTYPE_AP) 4610 drv->start_mode_ap = 1; 4611 4612 if (drv->hostapd) 4613 nlmode = NL80211_IFTYPE_AP; 4614 else if (bss->if_dynamic) 4615 nlmode = nl80211_get_ifmode(bss); 4616 else 4617 nlmode = NL80211_IFTYPE_STATION; 4618 4619 if (wpa_driver_nl80211_set_mode(bss, nlmode) < 0) { 4620 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver mode"); 4621 return -1; 4622 } 4623 4624 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { 4625 int ret = nl80211_set_p2pdev(bss, 1); 4626 if (ret < 0) 4627 wpa_printf(MSG_ERROR, "nl80211: Could not start P2P device"); 4628 nl80211_get_macaddr(bss); 4629 return ret; 4630 } 4631 4632 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) { 4633 if (rfkill_is_blocked(drv->rfkill)) { 4634 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable " 4635 "interface '%s' due to rfkill", 4636 bss->ifname); 4637 drv->if_disabled = 1; 4638 send_rfkill_event = 1; 4639 } else { 4640 wpa_printf(MSG_ERROR, "nl80211: Could not set " 4641 "interface '%s' UP", bss->ifname); 4642 return -1; 4643 } 4644 } 4645 4646 if (!drv->hostapd) 4647 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 4648 1, IF_OPER_DORMANT); 4649 4650 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 4651 bss->addr)) 4652 return -1; 4653 4654 if (send_rfkill_event) { 4655 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill, 4656 drv, drv->ctx); 4657 } 4658 4659 return 0; 4660} 4661 4662 4663static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv) 4664{ 4665 struct nl_msg *msg; 4666 4667 msg = nlmsg_alloc(); 4668 if (!msg) 4669 return -ENOMEM; 4670 4671 wpa_printf(MSG_DEBUG, "nl80211: Remove beacon (ifindex=%d)", 4672 drv->ifindex); 4673 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON); 4674 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4675 4676 return send_and_recv_msgs(drv, msg, NULL, NULL); 4677 nla_put_failure: 4678 nlmsg_free(msg); 4679 return -ENOBUFS; 4680} 4681 4682 4683/** 4684 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface 4685 * @bss: Pointer to private nl80211 data from wpa_driver_nl80211_init() 4686 * 4687 * Shut down driver interface and processing of driver events. Free 4688 * private data buffer if one was allocated in wpa_driver_nl80211_init(). 4689 */ 4690static void wpa_driver_nl80211_deinit(struct i802_bss *bss) 4691{ 4692 struct wpa_driver_nl80211_data *drv = bss->drv; 4693 4694 bss->in_deinit = 1; 4695 if (drv->data_tx_status) 4696 eloop_unregister_read_sock(drv->eapol_tx_sock); 4697 if (drv->eapol_tx_sock >= 0) 4698 close(drv->eapol_tx_sock); 4699 4700 if (bss->nl_preq) 4701 wpa_driver_nl80211_probe_req_report(bss, 0); 4702 if (bss->added_if_into_bridge) { 4703 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 4704 bss->ifname) < 0) 4705 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 4706 "interface %s from bridge %s: %s", 4707 bss->ifname, bss->brname, strerror(errno)); 4708 } 4709 if (bss->added_bridge) { 4710 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 4711 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 4712 "bridge %s: %s", 4713 bss->brname, strerror(errno)); 4714 } 4715 4716 nl80211_remove_monitor_interface(drv); 4717 4718 if (is_ap_interface(drv->nlmode)) 4719 wpa_driver_nl80211_del_beacon(drv); 4720 4721 if (drv->eapol_sock >= 0) { 4722 eloop_unregister_read_sock(drv->eapol_sock); 4723 close(drv->eapol_sock); 4724 } 4725 4726 if (drv->if_indices != drv->default_if_indices) 4727 os_free(drv->if_indices); 4728 4729 if (drv->disabled_11b_rates) 4730 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 4731 4732 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0, 4733 IF_OPER_UP); 4734 rfkill_deinit(drv->rfkill); 4735 4736 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 4737 4738 if (!drv->start_iface_up) 4739 (void) i802_set_iface_flags(bss, 0); 4740 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) { 4741 if (!drv->hostapd || !drv->start_mode_ap) 4742 wpa_driver_nl80211_set_mode(bss, 4743 NL80211_IFTYPE_STATION); 4744 nl80211_mgmt_unsubscribe(bss, "deinit"); 4745 } else { 4746 nl80211_mgmt_unsubscribe(bss, "deinit"); 4747 nl80211_del_p2pdev(bss); 4748 } 4749 nl_cb_put(drv->nl_cb); 4750 4751 nl80211_destroy_bss(drv->first_bss); 4752 4753 os_free(drv->filter_ssids); 4754 4755 os_free(drv->auth_ie); 4756 4757 if (drv->in_interface_list) 4758 dl_list_del(&drv->list); 4759 4760 os_free(drv->extended_capa); 4761 os_free(drv->extended_capa_mask); 4762 os_free(drv->first_bss); 4763 os_free(drv); 4764} 4765 4766 4767/** 4768 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion 4769 * @eloop_ctx: Driver private data 4770 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init() 4771 * 4772 * This function can be used as registered timeout when starting a scan to 4773 * generate a scan completed event if the driver does not report this. 4774 */ 4775static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx) 4776{ 4777 struct wpa_driver_nl80211_data *drv = eloop_ctx; 4778 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) { 4779 wpa_driver_nl80211_set_mode(drv->first_bss, 4780 drv->ap_scan_as_station); 4781 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 4782 } 4783 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results"); 4784 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL); 4785} 4786 4787 4788static struct nl_msg * 4789nl80211_scan_common(struct wpa_driver_nl80211_data *drv, u8 cmd, 4790 struct wpa_driver_scan_params *params, u64 *wdev_id) 4791{ 4792 struct nl_msg *msg; 4793 size_t i; 4794 4795 msg = nlmsg_alloc(); 4796 if (!msg) 4797 return NULL; 4798 4799 nl80211_cmd(drv, msg, 0, cmd); 4800 4801 if (!wdev_id) 4802 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4803 else 4804 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, *wdev_id); 4805 4806 if (params->num_ssids) { 4807 struct nlattr *ssids; 4808 4809 ssids = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); 4810 if (ssids == NULL) 4811 goto fail; 4812 for (i = 0; i < params->num_ssids; i++) { 4813 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID", 4814 params->ssids[i].ssid, 4815 params->ssids[i].ssid_len); 4816 if (nla_put(msg, i + 1, params->ssids[i].ssid_len, 4817 params->ssids[i].ssid) < 0) 4818 goto fail; 4819 } 4820 nla_nest_end(msg, ssids); 4821 } 4822 4823 if (params->extra_ies) { 4824 wpa_hexdump(MSG_MSGDUMP, "nl80211: Scan extra IEs", 4825 params->extra_ies, params->extra_ies_len); 4826 if (nla_put(msg, NL80211_ATTR_IE, params->extra_ies_len, 4827 params->extra_ies) < 0) 4828 goto fail; 4829 } 4830 4831 if (params->freqs) { 4832 struct nlattr *freqs; 4833 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); 4834 if (freqs == NULL) 4835 goto fail; 4836 for (i = 0; params->freqs[i]; i++) { 4837 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u " 4838 "MHz", params->freqs[i]); 4839 if (nla_put_u32(msg, i + 1, params->freqs[i]) < 0) 4840 goto fail; 4841 } 4842 nla_nest_end(msg, freqs); 4843 } 4844 4845 os_free(drv->filter_ssids); 4846 drv->filter_ssids = params->filter_ssids; 4847 params->filter_ssids = NULL; 4848 drv->num_filter_ssids = params->num_filter_ssids; 4849 4850 if (params->only_new_results) { 4851 wpa_printf(MSG_DEBUG, "nl80211: Add NL80211_SCAN_FLAG_FLUSH"); 4852 NLA_PUT_U32(msg, NL80211_ATTR_SCAN_FLAGS, 4853 NL80211_SCAN_FLAG_FLUSH); 4854 } 4855 4856 return msg; 4857 4858fail: 4859nla_put_failure: 4860 nlmsg_free(msg); 4861 return NULL; 4862} 4863 4864 4865/** 4866 * wpa_driver_nl80211_scan - Request the driver to initiate scan 4867 * @bss: Pointer to private driver data from wpa_driver_nl80211_init() 4868 * @params: Scan parameters 4869 * Returns: 0 on success, -1 on failure 4870 */ 4871static int wpa_driver_nl80211_scan(struct i802_bss *bss, 4872 struct wpa_driver_scan_params *params) 4873{ 4874 struct wpa_driver_nl80211_data *drv = bss->drv; 4875 int ret = -1, timeout; 4876 struct nl_msg *msg = NULL; 4877 4878 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: scan request"); 4879 drv->scan_for_auth = 0; 4880 4881 msg = nl80211_scan_common(drv, NL80211_CMD_TRIGGER_SCAN, params, 4882 bss->wdev_id_set ? &bss->wdev_id : NULL); 4883 if (!msg) 4884 return -1; 4885 4886 if (params->p2p_probe) { 4887 struct nlattr *rates; 4888 4889 wpa_printf(MSG_DEBUG, "nl80211: P2P probe - mask SuppRates"); 4890 4891 rates = nla_nest_start(msg, NL80211_ATTR_SCAN_SUPP_RATES); 4892 if (rates == NULL) 4893 goto nla_put_failure; 4894 4895 /* 4896 * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates 4897 * by masking out everything else apart from the OFDM rates 6, 4898 * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz 4899 * rates are left enabled. 4900 */ 4901 NLA_PUT(msg, NL80211_BAND_2GHZ, 8, 4902 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 4903 nla_nest_end(msg, rates); 4904 4905 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 4906 } 4907 4908 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4909 msg = NULL; 4910 if (ret) { 4911 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d " 4912 "(%s)", ret, strerror(-ret)); 4913 if (drv->hostapd && is_ap_interface(drv->nlmode)) { 4914 enum nl80211_iftype old_mode = drv->nlmode; 4915 4916 /* 4917 * mac80211 does not allow scan requests in AP mode, so 4918 * try to do this in station mode. 4919 */ 4920 if (wpa_driver_nl80211_set_mode( 4921 bss, NL80211_IFTYPE_STATION)) 4922 goto nla_put_failure; 4923 4924 if (wpa_driver_nl80211_scan(bss, params)) { 4925 wpa_driver_nl80211_set_mode(bss, drv->nlmode); 4926 goto nla_put_failure; 4927 } 4928 4929 /* Restore AP mode when processing scan results */ 4930 drv->ap_scan_as_station = old_mode; 4931 ret = 0; 4932 } else 4933 goto nla_put_failure; 4934 } 4935 4936 drv->scan_state = SCAN_REQUESTED; 4937 /* Not all drivers generate "scan completed" wireless event, so try to 4938 * read results after a timeout. */ 4939 timeout = 10; 4940 if (drv->scan_complete_events) { 4941 /* 4942 * The driver seems to deliver events to notify when scan is 4943 * complete, so use longer timeout to avoid race conditions 4944 * with scanning and following association request. 4945 */ 4946 timeout = 30; 4947 } 4948 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d " 4949 "seconds", ret, timeout); 4950 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 4951 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout, 4952 drv, drv->ctx); 4953 4954nla_put_failure: 4955 nlmsg_free(msg); 4956 return ret; 4957} 4958 4959 4960/** 4961 * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan 4962 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 4963 * @params: Scan parameters 4964 * @interval: Interval between scan cycles in milliseconds 4965 * Returns: 0 on success, -1 on failure or if not supported 4966 */ 4967static int wpa_driver_nl80211_sched_scan(void *priv, 4968 struct wpa_driver_scan_params *params, 4969 u32 interval) 4970{ 4971 struct i802_bss *bss = priv; 4972 struct wpa_driver_nl80211_data *drv = bss->drv; 4973 int ret = -1; 4974 struct nl_msg *msg; 4975 size_t i; 4976 4977 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: sched_scan request"); 4978 4979#ifdef ANDROID 4980 if (!drv->capa.sched_scan_supported) 4981 return android_pno_start(bss, params); 4982#endif /* ANDROID */ 4983 4984 msg = nl80211_scan_common(drv, NL80211_CMD_START_SCHED_SCAN, params, 4985 bss->wdev_id_set ? &bss->wdev_id : NULL); 4986 if (!msg) 4987 goto nla_put_failure; 4988 4989 NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval); 4990 4991 if ((drv->num_filter_ssids && 4992 (int) drv->num_filter_ssids <= drv->capa.max_match_sets) || 4993 params->filter_rssi) { 4994 struct nlattr *match_sets; 4995 match_sets = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH); 4996 if (match_sets == NULL) 4997 goto nla_put_failure; 4998 4999 for (i = 0; i < drv->num_filter_ssids; i++) { 5000 struct nlattr *match_set_ssid; 5001 wpa_hexdump_ascii(MSG_MSGDUMP, 5002 "nl80211: Sched scan filter SSID", 5003 drv->filter_ssids[i].ssid, 5004 drv->filter_ssids[i].ssid_len); 5005 5006 match_set_ssid = nla_nest_start(msg, i + 1); 5007 if (match_set_ssid == NULL) 5008 goto nla_put_failure; 5009 NLA_PUT(msg, NL80211_ATTR_SCHED_SCAN_MATCH_SSID, 5010 drv->filter_ssids[i].ssid_len, 5011 drv->filter_ssids[i].ssid); 5012 if (params->filter_rssi) 5013 NLA_PUT_U32(msg, 5014 NL80211_SCHED_SCAN_MATCH_ATTR_RSSI, 5015 params->filter_rssi); 5016 5017 nla_nest_end(msg, match_set_ssid); 5018 } 5019 5020 /* 5021 * Due to backward compatibility code, newer kernels treat this 5022 * matchset (with only an RSSI filter) as the default for all 5023 * other matchsets, unless it's the only one, in which case the 5024 * matchset will actually allow all SSIDs above the RSSI. 5025 */ 5026 if (params->filter_rssi) { 5027 struct nlattr *match_set_rssi; 5028 match_set_rssi = nla_nest_start(msg, 0); 5029 if (match_set_rssi == NULL) 5030 goto nla_put_failure; 5031 NLA_PUT_U32(msg, NL80211_SCHED_SCAN_MATCH_ATTR_RSSI, 5032 params->filter_rssi); 5033 wpa_printf(MSG_MSGDUMP, 5034 "nl80211: Sched scan RSSI filter %d dBm", 5035 params->filter_rssi); 5036 nla_nest_end(msg, match_set_rssi); 5037 } 5038 5039 nla_nest_end(msg, match_sets); 5040 } 5041 5042 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5043 5044 /* TODO: if we get an error here, we should fall back to normal scan */ 5045 5046 msg = NULL; 5047 if (ret) { 5048 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: " 5049 "ret=%d (%s)", ret, strerror(-ret)); 5050 goto nla_put_failure; 5051 } 5052 5053 wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - " 5054 "scan interval %d msec", ret, interval); 5055 5056nla_put_failure: 5057 nlmsg_free(msg); 5058 return ret; 5059} 5060 5061 5062/** 5063 * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan 5064 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 5065 * Returns: 0 on success, -1 on failure or if not supported 5066 */ 5067static int wpa_driver_nl80211_stop_sched_scan(void *priv) 5068{ 5069 struct i802_bss *bss = priv; 5070 struct wpa_driver_nl80211_data *drv = bss->drv; 5071 int ret = 0; 5072 struct nl_msg *msg; 5073 5074#ifdef ANDROID 5075 if (!drv->capa.sched_scan_supported) 5076 return android_pno_stop(bss); 5077#endif /* ANDROID */ 5078 5079 msg = nlmsg_alloc(); 5080 if (!msg) 5081 return -1; 5082 5083 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN); 5084 5085 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5086 5087 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5088 msg = NULL; 5089 if (ret) { 5090 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: " 5091 "ret=%d (%s)", ret, strerror(-ret)); 5092 goto nla_put_failure; 5093 } 5094 5095 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret); 5096 5097nla_put_failure: 5098 nlmsg_free(msg); 5099 return ret; 5100} 5101 5102 5103static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie) 5104{ 5105 const u8 *end, *pos; 5106 5107 if (ies == NULL) 5108 return NULL; 5109 5110 pos = ies; 5111 end = ies + ies_len; 5112 5113 while (pos + 1 < end) { 5114 if (pos + 2 + pos[1] > end) 5115 break; 5116 if (pos[0] == ie) 5117 return pos; 5118 pos += 2 + pos[1]; 5119 } 5120 5121 return NULL; 5122} 5123 5124 5125static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv, 5126 const u8 *ie, size_t ie_len) 5127{ 5128 const u8 *ssid; 5129 size_t i; 5130 5131 if (drv->filter_ssids == NULL) 5132 return 0; 5133 5134 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID); 5135 if (ssid == NULL) 5136 return 1; 5137 5138 for (i = 0; i < drv->num_filter_ssids; i++) { 5139 if (ssid[1] == drv->filter_ssids[i].ssid_len && 5140 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) == 5141 0) 5142 return 0; 5143 } 5144 5145 return 1; 5146} 5147 5148 5149static int bss_info_handler(struct nl_msg *msg, void *arg) 5150{ 5151 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 5152 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 5153 struct nlattr *bss[NL80211_BSS_MAX + 1]; 5154 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = { 5155 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC }, 5156 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 }, 5157 [NL80211_BSS_TSF] = { .type = NLA_U64 }, 5158 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 }, 5159 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 }, 5160 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC }, 5161 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 }, 5162 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 }, 5163 [NL80211_BSS_STATUS] = { .type = NLA_U32 }, 5164 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 }, 5165 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC }, 5166 }; 5167 struct nl80211_bss_info_arg *_arg = arg; 5168 struct wpa_scan_results *res = _arg->res; 5169 struct wpa_scan_res **tmp; 5170 struct wpa_scan_res *r; 5171 const u8 *ie, *beacon_ie; 5172 size_t ie_len, beacon_ie_len; 5173 u8 *pos; 5174 size_t i; 5175 5176 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 5177 genlmsg_attrlen(gnlh, 0), NULL); 5178 if (!tb[NL80211_ATTR_BSS]) 5179 return NL_SKIP; 5180 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS], 5181 bss_policy)) 5182 return NL_SKIP; 5183 if (bss[NL80211_BSS_STATUS]) { 5184 enum nl80211_bss_status status; 5185 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 5186 if (status == NL80211_BSS_STATUS_ASSOCIATED && 5187 bss[NL80211_BSS_FREQUENCY]) { 5188 _arg->assoc_freq = 5189 nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 5190 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz", 5191 _arg->assoc_freq); 5192 } 5193 if (status == NL80211_BSS_STATUS_ASSOCIATED && 5194 bss[NL80211_BSS_BSSID]) { 5195 os_memcpy(_arg->assoc_bssid, 5196 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN); 5197 wpa_printf(MSG_DEBUG, "nl80211: Associated with " 5198 MACSTR, MAC2STR(_arg->assoc_bssid)); 5199 } 5200 } 5201 if (!res) 5202 return NL_SKIP; 5203 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) { 5204 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 5205 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 5206 } else { 5207 ie = NULL; 5208 ie_len = 0; 5209 } 5210 if (bss[NL80211_BSS_BEACON_IES]) { 5211 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]); 5212 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]); 5213 } else { 5214 beacon_ie = NULL; 5215 beacon_ie_len = 0; 5216 } 5217 5218 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie, 5219 ie ? ie_len : beacon_ie_len)) 5220 return NL_SKIP; 5221 5222 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len); 5223 if (r == NULL) 5224 return NL_SKIP; 5225 if (bss[NL80211_BSS_BSSID]) 5226 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]), 5227 ETH_ALEN); 5228 if (bss[NL80211_BSS_FREQUENCY]) 5229 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 5230 if (bss[NL80211_BSS_BEACON_INTERVAL]) 5231 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]); 5232 if (bss[NL80211_BSS_CAPABILITY]) 5233 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]); 5234 r->flags |= WPA_SCAN_NOISE_INVALID; 5235 if (bss[NL80211_BSS_SIGNAL_MBM]) { 5236 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]); 5237 r->level /= 100; /* mBm to dBm */ 5238 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID; 5239 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) { 5240 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]); 5241 r->flags |= WPA_SCAN_QUAL_INVALID; 5242 } else 5243 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID; 5244 if (bss[NL80211_BSS_TSF]) 5245 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]); 5246 if (bss[NL80211_BSS_SEEN_MS_AGO]) 5247 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]); 5248 r->ie_len = ie_len; 5249 pos = (u8 *) (r + 1); 5250 if (ie) { 5251 os_memcpy(pos, ie, ie_len); 5252 pos += ie_len; 5253 } 5254 r->beacon_ie_len = beacon_ie_len; 5255 if (beacon_ie) 5256 os_memcpy(pos, beacon_ie, beacon_ie_len); 5257 5258 if (bss[NL80211_BSS_STATUS]) { 5259 enum nl80211_bss_status status; 5260 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 5261 switch (status) { 5262 case NL80211_BSS_STATUS_AUTHENTICATED: 5263 r->flags |= WPA_SCAN_AUTHENTICATED; 5264 break; 5265 case NL80211_BSS_STATUS_ASSOCIATED: 5266 r->flags |= WPA_SCAN_ASSOCIATED; 5267 break; 5268 default: 5269 break; 5270 } 5271 } 5272 5273 /* 5274 * cfg80211 maintains separate BSS table entries for APs if the same 5275 * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does 5276 * not use frequency as a separate key in the BSS table, so filter out 5277 * duplicated entries. Prefer associated BSS entry in such a case in 5278 * order to get the correct frequency into the BSS table. Similarly, 5279 * prefer newer entries over older. 5280 */ 5281 for (i = 0; i < res->num; i++) { 5282 const u8 *s1, *s2; 5283 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0) 5284 continue; 5285 5286 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1), 5287 res->res[i]->ie_len, WLAN_EID_SSID); 5288 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID); 5289 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] || 5290 os_memcmp(s1, s2, 2 + s1[1]) != 0) 5291 continue; 5292 5293 /* Same BSSID,SSID was already included in scan results */ 5294 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result " 5295 "for " MACSTR, MAC2STR(r->bssid)); 5296 5297 if (((r->flags & WPA_SCAN_ASSOCIATED) && 5298 !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) || 5299 r->age < res->res[i]->age) { 5300 os_free(res->res[i]); 5301 res->res[i] = r; 5302 } else 5303 os_free(r); 5304 return NL_SKIP; 5305 } 5306 5307 tmp = os_realloc_array(res->res, res->num + 1, 5308 sizeof(struct wpa_scan_res *)); 5309 if (tmp == NULL) { 5310 os_free(r); 5311 return NL_SKIP; 5312 } 5313 tmp[res->num++] = r; 5314 res->res = tmp; 5315 5316 return NL_SKIP; 5317} 5318 5319 5320static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv, 5321 const u8 *addr) 5322{ 5323 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 5324 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state " 5325 "mismatch (" MACSTR ")", MAC2STR(addr)); 5326 wpa_driver_nl80211_mlme(drv, addr, 5327 NL80211_CMD_DEAUTHENTICATE, 5328 WLAN_REASON_PREV_AUTH_NOT_VALID, 1); 5329 } 5330} 5331 5332 5333static void wpa_driver_nl80211_check_bss_status( 5334 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res) 5335{ 5336 size_t i; 5337 5338 for (i = 0; i < res->num; i++) { 5339 struct wpa_scan_res *r = res->res[i]; 5340 if (r->flags & WPA_SCAN_AUTHENTICATED) { 5341 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 5342 "indicates BSS status with " MACSTR 5343 " as authenticated", 5344 MAC2STR(r->bssid)); 5345 if (is_sta_interface(drv->nlmode) && 5346 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 && 5347 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) != 5348 0) { 5349 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID" 5350 " in local state (auth=" MACSTR 5351 " assoc=" MACSTR ")", 5352 MAC2STR(drv->auth_bssid), 5353 MAC2STR(drv->bssid)); 5354 clear_state_mismatch(drv, r->bssid); 5355 } 5356 } 5357 5358 if (r->flags & WPA_SCAN_ASSOCIATED) { 5359 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 5360 "indicate BSS status with " MACSTR 5361 " as associated", 5362 MAC2STR(r->bssid)); 5363 if (is_sta_interface(drv->nlmode) && 5364 !drv->associated) { 5365 wpa_printf(MSG_DEBUG, "nl80211: Local state " 5366 "(not associated) does not match " 5367 "with BSS state"); 5368 clear_state_mismatch(drv, r->bssid); 5369 } else if (is_sta_interface(drv->nlmode) && 5370 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) != 5371 0) { 5372 wpa_printf(MSG_DEBUG, "nl80211: Local state " 5373 "(associated with " MACSTR ") does " 5374 "not match with BSS state", 5375 MAC2STR(drv->bssid)); 5376 clear_state_mismatch(drv, r->bssid); 5377 clear_state_mismatch(drv, drv->bssid); 5378 } 5379 } 5380 } 5381} 5382 5383 5384static struct wpa_scan_results * 5385nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv) 5386{ 5387 struct nl_msg *msg; 5388 struct wpa_scan_results *res; 5389 int ret; 5390 struct nl80211_bss_info_arg arg; 5391 5392 res = os_zalloc(sizeof(*res)); 5393 if (res == NULL) 5394 return NULL; 5395 msg = nlmsg_alloc(); 5396 if (!msg) 5397 goto nla_put_failure; 5398 5399 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 5400 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 5401 goto nla_put_failure; 5402 5403 arg.drv = drv; 5404 arg.res = res; 5405 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 5406 msg = NULL; 5407 if (ret == 0) { 5408 wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu " 5409 "BSSes)", (unsigned long) res->num); 5410 nl80211_get_noise_for_scan_results(drv, res); 5411 return res; 5412 } 5413 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 5414 "(%s)", ret, strerror(-ret)); 5415nla_put_failure: 5416 nlmsg_free(msg); 5417 wpa_scan_results_free(res); 5418 return NULL; 5419} 5420 5421 5422/** 5423 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results 5424 * @priv: Pointer to private wext data from wpa_driver_nl80211_init() 5425 * Returns: Scan results on success, -1 on failure 5426 */ 5427static struct wpa_scan_results * 5428wpa_driver_nl80211_get_scan_results(void *priv) 5429{ 5430 struct i802_bss *bss = priv; 5431 struct wpa_driver_nl80211_data *drv = bss->drv; 5432 struct wpa_scan_results *res; 5433 5434 res = nl80211_get_scan_results(drv); 5435 if (res) 5436 wpa_driver_nl80211_check_bss_status(drv, res); 5437 return res; 5438} 5439 5440 5441static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv) 5442{ 5443 struct wpa_scan_results *res; 5444 size_t i; 5445 5446 res = nl80211_get_scan_results(drv); 5447 if (res == NULL) { 5448 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results"); 5449 return; 5450 } 5451 5452 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump"); 5453 for (i = 0; i < res->num; i++) { 5454 struct wpa_scan_res *r = res->res[i]; 5455 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s", 5456 (int) i, (int) res->num, MAC2STR(r->bssid), 5457 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "", 5458 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : ""); 5459 } 5460 5461 wpa_scan_results_free(res); 5462} 5463 5464 5465static u32 wpa_alg_to_cipher_suite(enum wpa_alg alg, size_t key_len) 5466{ 5467 switch (alg) { 5468 case WPA_ALG_WEP: 5469 if (key_len == 5) 5470 return WLAN_CIPHER_SUITE_WEP40; 5471 return WLAN_CIPHER_SUITE_WEP104; 5472 case WPA_ALG_TKIP: 5473 return WLAN_CIPHER_SUITE_TKIP; 5474 case WPA_ALG_CCMP: 5475 return WLAN_CIPHER_SUITE_CCMP; 5476 case WPA_ALG_GCMP: 5477 return WLAN_CIPHER_SUITE_GCMP; 5478 case WPA_ALG_CCMP_256: 5479 return WLAN_CIPHER_SUITE_CCMP_256; 5480 case WPA_ALG_GCMP_256: 5481 return WLAN_CIPHER_SUITE_GCMP_256; 5482 case WPA_ALG_IGTK: 5483 return WLAN_CIPHER_SUITE_AES_CMAC; 5484 case WPA_ALG_BIP_GMAC_128: 5485 return WLAN_CIPHER_SUITE_BIP_GMAC_128; 5486 case WPA_ALG_BIP_GMAC_256: 5487 return WLAN_CIPHER_SUITE_BIP_GMAC_256; 5488 case WPA_ALG_BIP_CMAC_256: 5489 return WLAN_CIPHER_SUITE_BIP_CMAC_256; 5490 case WPA_ALG_SMS4: 5491 return WLAN_CIPHER_SUITE_SMS4; 5492 case WPA_ALG_KRK: 5493 return WLAN_CIPHER_SUITE_KRK; 5494 case WPA_ALG_NONE: 5495 case WPA_ALG_PMK: 5496 wpa_printf(MSG_ERROR, "nl80211: Unexpected encryption algorithm %d", 5497 alg); 5498 return 0; 5499 } 5500 5501 wpa_printf(MSG_ERROR, "nl80211: Unsupported encryption algorithm %d", 5502 alg); 5503 return 0; 5504} 5505 5506 5507static u32 wpa_cipher_to_cipher_suite(unsigned int cipher) 5508{ 5509 switch (cipher) { 5510 case WPA_CIPHER_CCMP_256: 5511 return WLAN_CIPHER_SUITE_CCMP_256; 5512 case WPA_CIPHER_GCMP_256: 5513 return WLAN_CIPHER_SUITE_GCMP_256; 5514 case WPA_CIPHER_CCMP: 5515 return WLAN_CIPHER_SUITE_CCMP; 5516 case WPA_CIPHER_GCMP: 5517 return WLAN_CIPHER_SUITE_GCMP; 5518 case WPA_CIPHER_TKIP: 5519 return WLAN_CIPHER_SUITE_TKIP; 5520 case WPA_CIPHER_WEP104: 5521 return WLAN_CIPHER_SUITE_WEP104; 5522 case WPA_CIPHER_WEP40: 5523 return WLAN_CIPHER_SUITE_WEP40; 5524 case WPA_CIPHER_GTK_NOT_USED: 5525 return WLAN_CIPHER_SUITE_NO_GROUP_ADDR; 5526 } 5527 5528 return 0; 5529} 5530 5531 5532static int wpa_cipher_to_cipher_suites(unsigned int ciphers, u32 suites[], 5533 int max_suites) 5534{ 5535 int num_suites = 0; 5536 5537 if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP_256) 5538 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP_256; 5539 if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP_256) 5540 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP_256; 5541 if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP) 5542 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP; 5543 if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP) 5544 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP; 5545 if (num_suites < max_suites && ciphers & WPA_CIPHER_TKIP) 5546 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP; 5547 if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP104) 5548 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104; 5549 if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP40) 5550 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40; 5551 5552 return num_suites; 5553} 5554 5555 5556static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss, 5557 enum wpa_alg alg, const u8 *addr, 5558 int key_idx, int set_tx, 5559 const u8 *seq, size_t seq_len, 5560 const u8 *key, size_t key_len) 5561{ 5562 struct wpa_driver_nl80211_data *drv = bss->drv; 5563 int ifindex; 5564 struct nl_msg *msg; 5565 int ret; 5566 int tdls = 0; 5567 5568 /* Ignore for P2P Device */ 5569 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 5570 return 0; 5571 5572 ifindex = if_nametoindex(ifname); 5573 wpa_printf(MSG_DEBUG, "%s: ifindex=%d (%s) alg=%d addr=%p key_idx=%d " 5574 "set_tx=%d seq_len=%lu key_len=%lu", 5575 __func__, ifindex, ifname, alg, addr, key_idx, set_tx, 5576 (unsigned long) seq_len, (unsigned long) key_len); 5577#ifdef CONFIG_TDLS 5578 if (key_idx == -1) { 5579 key_idx = 0; 5580 tdls = 1; 5581 } 5582#endif /* CONFIG_TDLS */ 5583 5584 msg = nlmsg_alloc(); 5585 if (!msg) 5586 return -ENOMEM; 5587 5588 if (alg == WPA_ALG_NONE) { 5589 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY); 5590 } else { 5591 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY); 5592 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key); 5593 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5594 wpa_alg_to_cipher_suite(alg, key_len)); 5595 } 5596 5597 if (seq && seq_len) 5598 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq); 5599 5600 if (addr && !is_broadcast_ether_addr(addr)) { 5601 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr)); 5602 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 5603 5604 if (alg != WPA_ALG_WEP && key_idx && !set_tx) { 5605 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK"); 5606 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, 5607 NL80211_KEYTYPE_GROUP); 5608 } 5609 } else if (addr && is_broadcast_ether_addr(addr)) { 5610 struct nlattr *types; 5611 5612 wpa_printf(MSG_DEBUG, " broadcast key"); 5613 5614 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5615 if (!types) 5616 goto nla_put_failure; 5617 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 5618 nla_nest_end(msg, types); 5619 } 5620 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 5621 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5622 5623 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5624 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE) 5625 ret = 0; 5626 if (ret) 5627 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)", 5628 ret, strerror(-ret)); 5629 5630 /* 5631 * If we failed or don't need to set the default TX key (below), 5632 * we're done here. 5633 */ 5634 if (ret || !set_tx || alg == WPA_ALG_NONE || tdls) 5635 return ret; 5636 if (is_ap_interface(drv->nlmode) && addr && 5637 !is_broadcast_ether_addr(addr)) 5638 return ret; 5639 5640 msg = nlmsg_alloc(); 5641 if (!msg) 5642 return -ENOMEM; 5643 5644 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY); 5645 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 5646 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5647 if (alg == WPA_ALG_IGTK) 5648 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT); 5649 else 5650 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT); 5651 if (addr && is_broadcast_ether_addr(addr)) { 5652 struct nlattr *types; 5653 5654 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5655 if (!types) 5656 goto nla_put_failure; 5657 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 5658 nla_nest_end(msg, types); 5659 } else if (addr) { 5660 struct nlattr *types; 5661 5662 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5663 if (!types) 5664 goto nla_put_failure; 5665 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_UNICAST); 5666 nla_nest_end(msg, types); 5667 } 5668 5669 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5670 if (ret == -ENOENT) 5671 ret = 0; 5672 if (ret) 5673 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; " 5674 "err=%d %s)", ret, strerror(-ret)); 5675 return ret; 5676 5677nla_put_failure: 5678 nlmsg_free(msg); 5679 return -ENOBUFS; 5680} 5681 5682 5683static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg, 5684 int key_idx, int defkey, 5685 const u8 *seq, size_t seq_len, 5686 const u8 *key, size_t key_len) 5687{ 5688 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY); 5689 if (!key_attr) 5690 return -1; 5691 5692 if (defkey && alg == WPA_ALG_IGTK) 5693 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT); 5694 else if (defkey) 5695 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 5696 5697 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx); 5698 5699 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5700 wpa_alg_to_cipher_suite(alg, key_len)); 5701 5702 if (seq && seq_len) 5703 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq); 5704 5705 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key); 5706 5707 nla_nest_end(msg, key_attr); 5708 5709 return 0; 5710 nla_put_failure: 5711 return -1; 5712} 5713 5714 5715static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params, 5716 struct nl_msg *msg) 5717{ 5718 int i, privacy = 0; 5719 struct nlattr *nl_keys, *nl_key; 5720 5721 for (i = 0; i < 4; i++) { 5722 if (!params->wep_key[i]) 5723 continue; 5724 privacy = 1; 5725 break; 5726 } 5727 if (params->wps == WPS_MODE_PRIVACY) 5728 privacy = 1; 5729 if (params->pairwise_suite && 5730 params->pairwise_suite != WPA_CIPHER_NONE) 5731 privacy = 1; 5732 5733 if (!privacy) 5734 return 0; 5735 5736 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 5737 5738 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS); 5739 if (!nl_keys) 5740 goto nla_put_failure; 5741 5742 for (i = 0; i < 4; i++) { 5743 if (!params->wep_key[i]) 5744 continue; 5745 5746 nl_key = nla_nest_start(msg, i); 5747 if (!nl_key) 5748 goto nla_put_failure; 5749 5750 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i], 5751 params->wep_key[i]); 5752 if (params->wep_key_len[i] == 5) 5753 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5754 WLAN_CIPHER_SUITE_WEP40); 5755 else 5756 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5757 WLAN_CIPHER_SUITE_WEP104); 5758 5759 NLA_PUT_U8(msg, NL80211_KEY_IDX, i); 5760 5761 if (i == params->wep_tx_keyidx) 5762 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 5763 5764 nla_nest_end(msg, nl_key); 5765 } 5766 nla_nest_end(msg, nl_keys); 5767 5768 return 0; 5769 5770nla_put_failure: 5771 return -ENOBUFS; 5772} 5773 5774 5775static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 5776 const u8 *addr, int cmd, u16 reason_code, 5777 int local_state_change) 5778{ 5779 int ret = -1; 5780 struct nl_msg *msg; 5781 5782 msg = nlmsg_alloc(); 5783 if (!msg) 5784 return -1; 5785 5786 nl80211_cmd(drv, msg, 0, cmd); 5787 5788 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5789 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code); 5790 if (addr) 5791 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 5792 if (local_state_change) 5793 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 5794 5795 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5796 msg = NULL; 5797 if (ret) { 5798 wpa_dbg(drv->ctx, MSG_DEBUG, 5799 "nl80211: MLME command failed: reason=%u ret=%d (%s)", 5800 reason_code, ret, strerror(-ret)); 5801 goto nla_put_failure; 5802 } 5803 ret = 0; 5804 5805nla_put_failure: 5806 nlmsg_free(msg); 5807 return ret; 5808} 5809 5810 5811static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv, 5812 int reason_code) 5813{ 5814 int ret; 5815 5816 wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code); 5817 nl80211_mark_disconnected(drv); 5818 /* Disconnect command doesn't need BSSID - it uses cached value */ 5819 ret = wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT, 5820 reason_code, 0); 5821 /* 5822 * For locally generated disconnect, supplicant already generates a 5823 * DEAUTH event, so ignore the event from NL80211. 5824 */ 5825 drv->ignore_next_local_disconnect = ret == 0; 5826 5827 return ret; 5828} 5829 5830 5831static int wpa_driver_nl80211_deauthenticate(struct i802_bss *bss, 5832 const u8 *addr, int reason_code) 5833{ 5834 struct wpa_driver_nl80211_data *drv = bss->drv; 5835 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) 5836 return wpa_driver_nl80211_disconnect(drv, reason_code); 5837 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)", 5838 __func__, MAC2STR(addr), reason_code); 5839 nl80211_mark_disconnected(drv); 5840 if (drv->nlmode == NL80211_IFTYPE_ADHOC) 5841 return nl80211_leave_ibss(drv); 5842 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE, 5843 reason_code, 0); 5844} 5845 5846 5847static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv, 5848 struct wpa_driver_auth_params *params) 5849{ 5850 int i; 5851 5852 drv->auth_freq = params->freq; 5853 drv->auth_alg = params->auth_alg; 5854 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx; 5855 drv->auth_local_state_change = params->local_state_change; 5856 drv->auth_p2p = params->p2p; 5857 5858 if (params->bssid) 5859 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN); 5860 else 5861 os_memset(drv->auth_bssid_, 0, ETH_ALEN); 5862 5863 if (params->ssid) { 5864 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len); 5865 drv->auth_ssid_len = params->ssid_len; 5866 } else 5867 drv->auth_ssid_len = 0; 5868 5869 5870 os_free(drv->auth_ie); 5871 drv->auth_ie = NULL; 5872 drv->auth_ie_len = 0; 5873 if (params->ie) { 5874 drv->auth_ie = os_malloc(params->ie_len); 5875 if (drv->auth_ie) { 5876 os_memcpy(drv->auth_ie, params->ie, params->ie_len); 5877 drv->auth_ie_len = params->ie_len; 5878 } 5879 } 5880 5881 for (i = 0; i < 4; i++) { 5882 if (params->wep_key[i] && params->wep_key_len[i] && 5883 params->wep_key_len[i] <= 16) { 5884 os_memcpy(drv->auth_wep_key[i], params->wep_key[i], 5885 params->wep_key_len[i]); 5886 drv->auth_wep_key_len[i] = params->wep_key_len[i]; 5887 } else 5888 drv->auth_wep_key_len[i] = 0; 5889 } 5890} 5891 5892 5893static int wpa_driver_nl80211_authenticate( 5894 struct i802_bss *bss, struct wpa_driver_auth_params *params) 5895{ 5896 struct wpa_driver_nl80211_data *drv = bss->drv; 5897 int ret = -1, i; 5898 struct nl_msg *msg; 5899 enum nl80211_auth_type type; 5900 enum nl80211_iftype nlmode; 5901 int count = 0; 5902 int is_retry; 5903 5904 is_retry = drv->retry_auth; 5905 drv->retry_auth = 0; 5906 5907 nl80211_mark_disconnected(drv); 5908 os_memset(drv->auth_bssid, 0, ETH_ALEN); 5909 if (params->bssid) 5910 os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN); 5911 else 5912 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 5913 /* FIX: IBSS mode */ 5914 nlmode = params->p2p ? 5915 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 5916 if (drv->nlmode != nlmode && 5917 wpa_driver_nl80211_set_mode(bss, nlmode) < 0) 5918 return -1; 5919 5920retry: 5921 msg = nlmsg_alloc(); 5922 if (!msg) 5923 return -1; 5924 5925 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)", 5926 drv->ifindex); 5927 5928 nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE); 5929 5930 for (i = 0; i < 4; i++) { 5931 if (!params->wep_key[i]) 5932 continue; 5933 wpa_driver_nl80211_set_key(bss->ifname, bss, WPA_ALG_WEP, 5934 NULL, i, 5935 i == params->wep_tx_keyidx, NULL, 0, 5936 params->wep_key[i], 5937 params->wep_key_len[i]); 5938 if (params->wep_tx_keyidx != i) 5939 continue; 5940 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0, 5941 params->wep_key[i], params->wep_key_len[i])) { 5942 nlmsg_free(msg); 5943 return -1; 5944 } 5945 } 5946 5947 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5948 if (params->bssid) { 5949 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 5950 MAC2STR(params->bssid)); 5951 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 5952 } 5953 if (params->freq) { 5954 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 5955 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 5956 } 5957 if (params->ssid) { 5958 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 5959 params->ssid, params->ssid_len); 5960 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 5961 params->ssid); 5962 } 5963 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len); 5964 if (params->ie) 5965 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie); 5966 if (params->sae_data) { 5967 wpa_hexdump(MSG_DEBUG, " * SAE data", params->sae_data, 5968 params->sae_data_len); 5969 NLA_PUT(msg, NL80211_ATTR_SAE_DATA, params->sae_data_len, 5970 params->sae_data); 5971 } 5972 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 5973 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 5974 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 5975 type = NL80211_AUTHTYPE_SHARED_KEY; 5976 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 5977 type = NL80211_AUTHTYPE_NETWORK_EAP; 5978 else if (params->auth_alg & WPA_AUTH_ALG_FT) 5979 type = NL80211_AUTHTYPE_FT; 5980 else if (params->auth_alg & WPA_AUTH_ALG_SAE) 5981 type = NL80211_AUTHTYPE_SAE; 5982 else 5983 goto nla_put_failure; 5984 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 5985 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 5986 if (params->local_state_change) { 5987 wpa_printf(MSG_DEBUG, " * Local state change only"); 5988 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 5989 } 5990 5991 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5992 msg = NULL; 5993 if (ret) { 5994 wpa_dbg(drv->ctx, MSG_DEBUG, 5995 "nl80211: MLME command failed (auth): ret=%d (%s)", 5996 ret, strerror(-ret)); 5997 count++; 5998 if (ret == -EALREADY && count == 1 && params->bssid && 5999 !params->local_state_change) { 6000 /* 6001 * mac80211 does not currently accept new 6002 * authentication if we are already authenticated. As a 6003 * workaround, force deauthentication and try again. 6004 */ 6005 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication " 6006 "after forced deauthentication"); 6007 wpa_driver_nl80211_deauthenticate( 6008 bss, params->bssid, 6009 WLAN_REASON_PREV_AUTH_NOT_VALID); 6010 nlmsg_free(msg); 6011 goto retry; 6012 } 6013 6014 if (ret == -ENOENT && params->freq && !is_retry) { 6015 /* 6016 * cfg80211 has likely expired the BSS entry even 6017 * though it was previously available in our internal 6018 * BSS table. To recover quickly, start a single 6019 * channel scan on the specified channel. 6020 */ 6021 struct wpa_driver_scan_params scan; 6022 int freqs[2]; 6023 6024 os_memset(&scan, 0, sizeof(scan)); 6025 scan.num_ssids = 1; 6026 if (params->ssid) { 6027 scan.ssids[0].ssid = params->ssid; 6028 scan.ssids[0].ssid_len = params->ssid_len; 6029 } 6030 freqs[0] = params->freq; 6031 freqs[1] = 0; 6032 scan.freqs = freqs; 6033 wpa_printf(MSG_DEBUG, "nl80211: Trigger single " 6034 "channel scan to refresh cfg80211 BSS " 6035 "entry"); 6036 ret = wpa_driver_nl80211_scan(bss, &scan); 6037 if (ret == 0) { 6038 nl80211_copy_auth_params(drv, params); 6039 drv->scan_for_auth = 1; 6040 } 6041 } else if (is_retry) { 6042 /* 6043 * Need to indicate this with an event since the return 6044 * value from the retry is not delivered to core code. 6045 */ 6046 union wpa_event_data event; 6047 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry " 6048 "failed"); 6049 os_memset(&event, 0, sizeof(event)); 6050 os_memcpy(event.timeout_event.addr, drv->auth_bssid_, 6051 ETH_ALEN); 6052 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT, 6053 &event); 6054 } 6055 6056 goto nla_put_failure; 6057 } 6058 ret = 0; 6059 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send " 6060 "successfully"); 6061 6062nla_put_failure: 6063 nlmsg_free(msg); 6064 return ret; 6065} 6066 6067 6068static int wpa_driver_nl80211_authenticate_retry( 6069 struct wpa_driver_nl80211_data *drv) 6070{ 6071 struct wpa_driver_auth_params params; 6072 struct i802_bss *bss = drv->first_bss; 6073 int i; 6074 6075 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again"); 6076 6077 os_memset(¶ms, 0, sizeof(params)); 6078 params.freq = drv->auth_freq; 6079 params.auth_alg = drv->auth_alg; 6080 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx; 6081 params.local_state_change = drv->auth_local_state_change; 6082 params.p2p = drv->auth_p2p; 6083 6084 if (!is_zero_ether_addr(drv->auth_bssid_)) 6085 params.bssid = drv->auth_bssid_; 6086 6087 if (drv->auth_ssid_len) { 6088 params.ssid = drv->auth_ssid; 6089 params.ssid_len = drv->auth_ssid_len; 6090 } 6091 6092 params.ie = drv->auth_ie; 6093 params.ie_len = drv->auth_ie_len; 6094 6095 for (i = 0; i < 4; i++) { 6096 if (drv->auth_wep_key_len[i]) { 6097 params.wep_key[i] = drv->auth_wep_key[i]; 6098 params.wep_key_len[i] = drv->auth_wep_key_len[i]; 6099 } 6100 } 6101 6102 drv->retry_auth = 1; 6103 return wpa_driver_nl80211_authenticate(bss, ¶ms); 6104} 6105 6106 6107struct phy_info_arg { 6108 u16 *num_modes; 6109 struct hostapd_hw_modes *modes; 6110 int last_mode, last_chan_idx; 6111}; 6112 6113static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa, 6114 struct nlattr *ampdu_factor, 6115 struct nlattr *ampdu_density, 6116 struct nlattr *mcs_set) 6117{ 6118 if (capa) 6119 mode->ht_capab = nla_get_u16(capa); 6120 6121 if (ampdu_factor) 6122 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03; 6123 6124 if (ampdu_density) 6125 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2; 6126 6127 if (mcs_set && nla_len(mcs_set) >= 16) { 6128 u8 *mcs; 6129 mcs = nla_data(mcs_set); 6130 os_memcpy(mode->mcs_set, mcs, 16); 6131 } 6132} 6133 6134 6135static void phy_info_vht_capa(struct hostapd_hw_modes *mode, 6136 struct nlattr *capa, 6137 struct nlattr *mcs_set) 6138{ 6139 if (capa) 6140 mode->vht_capab = nla_get_u32(capa); 6141 6142 if (mcs_set && nla_len(mcs_set) >= 8) { 6143 u8 *mcs; 6144 mcs = nla_data(mcs_set); 6145 os_memcpy(mode->vht_mcs_set, mcs, 8); 6146 } 6147} 6148 6149 6150static void phy_info_freq(struct hostapd_hw_modes *mode, 6151 struct hostapd_channel_data *chan, 6152 struct nlattr *tb_freq[]) 6153{ 6154 u8 channel; 6155 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]); 6156 chan->flag = 0; 6157 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES) 6158 chan->chan = channel; 6159 6160 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) 6161 chan->flag |= HOSTAPD_CHAN_DISABLED; 6162 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IR]) 6163 chan->flag |= HOSTAPD_CHAN_PASSIVE_SCAN | HOSTAPD_CHAN_NO_IBSS; 6164 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR]) 6165 chan->flag |= HOSTAPD_CHAN_RADAR; 6166 6167 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) { 6168 enum nl80211_dfs_state state = 6169 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]); 6170 6171 switch (state) { 6172 case NL80211_DFS_USABLE: 6173 chan->flag |= HOSTAPD_CHAN_DFS_USABLE; 6174 break; 6175 case NL80211_DFS_AVAILABLE: 6176 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE; 6177 break; 6178 case NL80211_DFS_UNAVAILABLE: 6179 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE; 6180 break; 6181 } 6182 } 6183} 6184 6185 6186static int phy_info_freqs(struct phy_info_arg *phy_info, 6187 struct hostapd_hw_modes *mode, struct nlattr *tb) 6188{ 6189 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 6190 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 }, 6191 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG }, 6192 [NL80211_FREQUENCY_ATTR_NO_IR] = { .type = NLA_FLAG }, 6193 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG }, 6194 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 }, 6195 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 }, 6196 }; 6197 int new_channels = 0; 6198 struct hostapd_channel_data *channel; 6199 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1]; 6200 struct nlattr *nl_freq; 6201 int rem_freq, idx; 6202 6203 if (tb == NULL) 6204 return NL_OK; 6205 6206 nla_for_each_nested(nl_freq, tb, rem_freq) { 6207 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 6208 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 6209 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 6210 continue; 6211 new_channels++; 6212 } 6213 6214 channel = os_realloc_array(mode->channels, 6215 mode->num_channels + new_channels, 6216 sizeof(struct hostapd_channel_data)); 6217 if (!channel) 6218 return NL_SKIP; 6219 6220 mode->channels = channel; 6221 mode->num_channels += new_channels; 6222 6223 idx = phy_info->last_chan_idx; 6224 6225 nla_for_each_nested(nl_freq, tb, rem_freq) { 6226 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 6227 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 6228 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 6229 continue; 6230 phy_info_freq(mode, &mode->channels[idx], tb_freq); 6231 idx++; 6232 } 6233 phy_info->last_chan_idx = idx; 6234 6235 return NL_OK; 6236} 6237 6238 6239static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb) 6240{ 6241 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = { 6242 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 }, 6243 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = 6244 { .type = NLA_FLAG }, 6245 }; 6246 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1]; 6247 struct nlattr *nl_rate; 6248 int rem_rate, idx; 6249 6250 if (tb == NULL) 6251 return NL_OK; 6252 6253 nla_for_each_nested(nl_rate, tb, rem_rate) { 6254 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 6255 nla_data(nl_rate), nla_len(nl_rate), 6256 rate_policy); 6257 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 6258 continue; 6259 mode->num_rates++; 6260 } 6261 6262 mode->rates = os_calloc(mode->num_rates, sizeof(int)); 6263 if (!mode->rates) 6264 return NL_SKIP; 6265 6266 idx = 0; 6267 6268 nla_for_each_nested(nl_rate, tb, rem_rate) { 6269 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 6270 nla_data(nl_rate), nla_len(nl_rate), 6271 rate_policy); 6272 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 6273 continue; 6274 mode->rates[idx] = nla_get_u32( 6275 tb_rate[NL80211_BITRATE_ATTR_RATE]); 6276 idx++; 6277 } 6278 6279 return NL_OK; 6280} 6281 6282 6283static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band) 6284{ 6285 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1]; 6286 struct hostapd_hw_modes *mode; 6287 int ret; 6288 6289 if (phy_info->last_mode != nl_band->nla_type) { 6290 mode = os_realloc_array(phy_info->modes, 6291 *phy_info->num_modes + 1, 6292 sizeof(*mode)); 6293 if (!mode) 6294 return NL_SKIP; 6295 phy_info->modes = mode; 6296 6297 mode = &phy_info->modes[*(phy_info->num_modes)]; 6298 os_memset(mode, 0, sizeof(*mode)); 6299 mode->mode = NUM_HOSTAPD_MODES; 6300 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN | 6301 HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN; 6302 6303 /* 6304 * Unsupported VHT MCS stream is defined as value 3, so the VHT 6305 * MCS RX/TX map must be initialized with 0xffff to mark all 8 6306 * possible streams as unsupported. This will be overridden if 6307 * driver advertises VHT support. 6308 */ 6309 mode->vht_mcs_set[0] = 0xff; 6310 mode->vht_mcs_set[1] = 0xff; 6311 mode->vht_mcs_set[4] = 0xff; 6312 mode->vht_mcs_set[5] = 0xff; 6313 6314 *(phy_info->num_modes) += 1; 6315 phy_info->last_mode = nl_band->nla_type; 6316 phy_info->last_chan_idx = 0; 6317 } else 6318 mode = &phy_info->modes[*(phy_info->num_modes) - 1]; 6319 6320 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band), 6321 nla_len(nl_band), NULL); 6322 6323 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA], 6324 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR], 6325 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY], 6326 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]); 6327 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA], 6328 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]); 6329 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]); 6330 if (ret != NL_OK) 6331 return ret; 6332 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]); 6333 if (ret != NL_OK) 6334 return ret; 6335 6336 return NL_OK; 6337} 6338 6339 6340static int phy_info_handler(struct nl_msg *msg, void *arg) 6341{ 6342 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 6343 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 6344 struct phy_info_arg *phy_info = arg; 6345 struct nlattr *nl_band; 6346 int rem_band; 6347 6348 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 6349 genlmsg_attrlen(gnlh, 0), NULL); 6350 6351 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS]) 6352 return NL_SKIP; 6353 6354 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) 6355 { 6356 int res = phy_info_band(phy_info, nl_band); 6357 if (res != NL_OK) 6358 return res; 6359 } 6360 6361 return NL_SKIP; 6362} 6363 6364 6365static struct hostapd_hw_modes * 6366wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes, 6367 u16 *num_modes) 6368{ 6369 u16 m; 6370 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode; 6371 int i, mode11g_idx = -1; 6372 6373 /* heuristic to set up modes */ 6374 for (m = 0; m < *num_modes; m++) { 6375 if (!modes[m].num_channels) 6376 continue; 6377 if (modes[m].channels[0].freq < 4000) { 6378 modes[m].mode = HOSTAPD_MODE_IEEE80211B; 6379 for (i = 0; i < modes[m].num_rates; i++) { 6380 if (modes[m].rates[i] > 200) { 6381 modes[m].mode = HOSTAPD_MODE_IEEE80211G; 6382 break; 6383 } 6384 } 6385 } else if (modes[m].channels[0].freq > 50000) 6386 modes[m].mode = HOSTAPD_MODE_IEEE80211AD; 6387 else 6388 modes[m].mode = HOSTAPD_MODE_IEEE80211A; 6389 } 6390 6391 /* If only 802.11g mode is included, use it to construct matching 6392 * 802.11b mode data. */ 6393 6394 for (m = 0; m < *num_modes; m++) { 6395 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B) 6396 return modes; /* 802.11b already included */ 6397 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G) 6398 mode11g_idx = m; 6399 } 6400 6401 if (mode11g_idx < 0) 6402 return modes; /* 2.4 GHz band not supported at all */ 6403 6404 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes)); 6405 if (nmodes == NULL) 6406 return modes; /* Could not add 802.11b mode */ 6407 6408 mode = &nmodes[*num_modes]; 6409 os_memset(mode, 0, sizeof(*mode)); 6410 (*num_modes)++; 6411 modes = nmodes; 6412 6413 mode->mode = HOSTAPD_MODE_IEEE80211B; 6414 6415 mode11g = &modes[mode11g_idx]; 6416 mode->num_channels = mode11g->num_channels; 6417 mode->channels = os_malloc(mode11g->num_channels * 6418 sizeof(struct hostapd_channel_data)); 6419 if (mode->channels == NULL) { 6420 (*num_modes)--; 6421 return modes; /* Could not add 802.11b mode */ 6422 } 6423 os_memcpy(mode->channels, mode11g->channels, 6424 mode11g->num_channels * sizeof(struct hostapd_channel_data)); 6425 6426 mode->num_rates = 0; 6427 mode->rates = os_malloc(4 * sizeof(int)); 6428 if (mode->rates == NULL) { 6429 os_free(mode->channels); 6430 (*num_modes)--; 6431 return modes; /* Could not add 802.11b mode */ 6432 } 6433 6434 for (i = 0; i < mode11g->num_rates; i++) { 6435 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 && 6436 mode11g->rates[i] != 55 && mode11g->rates[i] != 110) 6437 continue; 6438 mode->rates[mode->num_rates] = mode11g->rates[i]; 6439 mode->num_rates++; 6440 if (mode->num_rates == 4) 6441 break; 6442 } 6443 6444 if (mode->num_rates == 0) { 6445 os_free(mode->channels); 6446 os_free(mode->rates); 6447 (*num_modes)--; 6448 return modes; /* No 802.11b rates */ 6449 } 6450 6451 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g " 6452 "information"); 6453 6454 return modes; 6455} 6456 6457 6458static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start, 6459 int end) 6460{ 6461 int c; 6462 6463 for (c = 0; c < mode->num_channels; c++) { 6464 struct hostapd_channel_data *chan = &mode->channels[c]; 6465 if (chan->freq - 10 >= start && chan->freq + 10 <= end) 6466 chan->flag |= HOSTAPD_CHAN_HT40; 6467 } 6468} 6469 6470 6471static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start, 6472 int end) 6473{ 6474 int c; 6475 6476 for (c = 0; c < mode->num_channels; c++) { 6477 struct hostapd_channel_data *chan = &mode->channels[c]; 6478 if (!(chan->flag & HOSTAPD_CHAN_HT40)) 6479 continue; 6480 if (chan->freq - 30 >= start && chan->freq - 10 <= end) 6481 chan->flag |= HOSTAPD_CHAN_HT40MINUS; 6482 if (chan->freq + 10 >= start && chan->freq + 30 <= end) 6483 chan->flag |= HOSTAPD_CHAN_HT40PLUS; 6484 } 6485} 6486 6487 6488static void nl80211_reg_rule_max_eirp(u32 start, u32 end, u32 max_eirp, 6489 struct phy_info_arg *results) 6490{ 6491 u16 m; 6492 6493 for (m = 0; m < *results->num_modes; m++) { 6494 int c; 6495 struct hostapd_hw_modes *mode = &results->modes[m]; 6496 6497 for (c = 0; c < mode->num_channels; c++) { 6498 struct hostapd_channel_data *chan = &mode->channels[c]; 6499 if ((u32) chan->freq - 10 >= start && 6500 (u32) chan->freq + 10 <= end) 6501 chan->max_tx_power = max_eirp; 6502 } 6503 } 6504} 6505 6506 6507static void nl80211_reg_rule_ht40(u32 start, u32 end, 6508 struct phy_info_arg *results) 6509{ 6510 u16 m; 6511 6512 for (m = 0; m < *results->num_modes; m++) { 6513 if (!(results->modes[m].ht_capab & 6514 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6515 continue; 6516 nl80211_set_ht40_mode(&results->modes[m], start, end); 6517 } 6518} 6519 6520 6521static void nl80211_reg_rule_sec(struct nlattr *tb[], 6522 struct phy_info_arg *results) 6523{ 6524 u32 start, end, max_bw; 6525 u16 m; 6526 6527 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6528 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 6529 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 6530 return; 6531 6532 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6533 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6534 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6535 6536 if (max_bw < 20) 6537 return; 6538 6539 for (m = 0; m < *results->num_modes; m++) { 6540 if (!(results->modes[m].ht_capab & 6541 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6542 continue; 6543 nl80211_set_ht40_mode_sec(&results->modes[m], start, end); 6544 } 6545} 6546 6547 6548static void nl80211_set_vht_mode(struct hostapd_hw_modes *mode, int start, 6549 int end) 6550{ 6551 int c; 6552 6553 for (c = 0; c < mode->num_channels; c++) { 6554 struct hostapd_channel_data *chan = &mode->channels[c]; 6555 if (chan->freq - 10 >= start && chan->freq + 70 <= end) 6556 chan->flag |= HOSTAPD_CHAN_VHT_10_70; 6557 6558 if (chan->freq - 30 >= start && chan->freq + 50 <= end) 6559 chan->flag |= HOSTAPD_CHAN_VHT_30_50; 6560 6561 if (chan->freq - 50 >= start && chan->freq + 30 <= end) 6562 chan->flag |= HOSTAPD_CHAN_VHT_50_30; 6563 6564 if (chan->freq - 70 >= start && chan->freq + 10 <= end) 6565 chan->flag |= HOSTAPD_CHAN_VHT_70_10; 6566 } 6567} 6568 6569 6570static void nl80211_reg_rule_vht(struct nlattr *tb[], 6571 struct phy_info_arg *results) 6572{ 6573 u32 start, end, max_bw; 6574 u16 m; 6575 6576 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6577 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 6578 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 6579 return; 6580 6581 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6582 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6583 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6584 6585 if (max_bw < 80) 6586 return; 6587 6588 for (m = 0; m < *results->num_modes; m++) { 6589 if (!(results->modes[m].ht_capab & 6590 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6591 continue; 6592 /* TODO: use a real VHT support indication */ 6593 if (!results->modes[m].vht_capab) 6594 continue; 6595 6596 nl80211_set_vht_mode(&results->modes[m], start, end); 6597 } 6598} 6599 6600 6601static const char * dfs_domain_name(enum nl80211_dfs_regions region) 6602{ 6603 switch (region) { 6604 case NL80211_DFS_UNSET: 6605 return "DFS-UNSET"; 6606 case NL80211_DFS_FCC: 6607 return "DFS-FCC"; 6608 case NL80211_DFS_ETSI: 6609 return "DFS-ETSI"; 6610 case NL80211_DFS_JP: 6611 return "DFS-JP"; 6612 default: 6613 return "DFS-invalid"; 6614 } 6615} 6616 6617 6618static int nl80211_get_reg(struct nl_msg *msg, void *arg) 6619{ 6620 struct phy_info_arg *results = arg; 6621 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 6622 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 6623 struct nlattr *nl_rule; 6624 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1]; 6625 int rem_rule; 6626 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 6627 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, 6628 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, 6629 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, 6630 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, 6631 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, 6632 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, 6633 }; 6634 6635 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 6636 genlmsg_attrlen(gnlh, 0), NULL); 6637 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] || 6638 !tb_msg[NL80211_ATTR_REG_RULES]) { 6639 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information " 6640 "available"); 6641 return NL_SKIP; 6642 } 6643 6644 if (tb_msg[NL80211_ATTR_DFS_REGION]) { 6645 enum nl80211_dfs_regions dfs_domain; 6646 dfs_domain = nla_get_u8(tb_msg[NL80211_ATTR_DFS_REGION]); 6647 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s (%s)", 6648 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]), 6649 dfs_domain_name(dfs_domain)); 6650 } else { 6651 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s", 6652 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2])); 6653 } 6654 6655 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6656 { 6657 u32 start, end, max_eirp = 0, max_bw = 0, flags = 0; 6658 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6659 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6660 if (tb_rule[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6661 tb_rule[NL80211_ATTR_FREQ_RANGE_END] == NULL) 6662 continue; 6663 start = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6664 end = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6665 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) 6666 max_eirp = nla_get_u32(tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) / 100; 6667 if (tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) 6668 max_bw = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6669 if (tb_rule[NL80211_ATTR_REG_RULE_FLAGS]) 6670 flags = nla_get_u32(tb_rule[NL80211_ATTR_REG_RULE_FLAGS]); 6671 6672 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz %u mBm%s%s%s%s%s%s%s%s", 6673 start, end, max_bw, max_eirp, 6674 flags & NL80211_RRF_NO_OFDM ? " (no OFDM)" : "", 6675 flags & NL80211_RRF_NO_CCK ? " (no CCK)" : "", 6676 flags & NL80211_RRF_NO_INDOOR ? " (no indoor)" : "", 6677 flags & NL80211_RRF_NO_OUTDOOR ? " (no outdoor)" : 6678 "", 6679 flags & NL80211_RRF_DFS ? " (DFS)" : "", 6680 flags & NL80211_RRF_PTP_ONLY ? " (PTP only)" : "", 6681 flags & NL80211_RRF_PTMP_ONLY ? " (PTMP only)" : "", 6682 flags & NL80211_RRF_NO_IR ? " (no IR)" : ""); 6683 if (max_bw >= 40) 6684 nl80211_reg_rule_ht40(start, end, results); 6685 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) 6686 nl80211_reg_rule_max_eirp(start, end, max_eirp, 6687 results); 6688 } 6689 6690 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6691 { 6692 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6693 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6694 nl80211_reg_rule_sec(tb_rule, results); 6695 } 6696 6697 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6698 { 6699 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6700 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6701 nl80211_reg_rule_vht(tb_rule, results); 6702 } 6703 6704 return NL_SKIP; 6705} 6706 6707 6708static int nl80211_set_regulatory_flags(struct wpa_driver_nl80211_data *drv, 6709 struct phy_info_arg *results) 6710{ 6711 struct nl_msg *msg; 6712 6713 msg = nlmsg_alloc(); 6714 if (!msg) 6715 return -ENOMEM; 6716 6717 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 6718 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results); 6719} 6720 6721 6722static struct hostapd_hw_modes * 6723wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags) 6724{ 6725 u32 feat; 6726 struct i802_bss *bss = priv; 6727 struct wpa_driver_nl80211_data *drv = bss->drv; 6728 struct nl_msg *msg; 6729 struct phy_info_arg result = { 6730 .num_modes = num_modes, 6731 .modes = NULL, 6732 .last_mode = -1, 6733 }; 6734 6735 *num_modes = 0; 6736 *flags = 0; 6737 6738 msg = nlmsg_alloc(); 6739 if (!msg) 6740 return NULL; 6741 6742 feat = get_nl80211_protocol_features(drv); 6743 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 6744 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 6745 else 6746 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 6747 6748 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 6749 if (nl80211_set_iface_id(msg, bss) < 0) 6750 goto nla_put_failure; 6751 6752 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) { 6753 nl80211_set_regulatory_flags(drv, &result); 6754 return wpa_driver_nl80211_postprocess_modes(result.modes, 6755 num_modes); 6756 } 6757 msg = NULL; 6758 nla_put_failure: 6759 nlmsg_free(msg); 6760 return NULL; 6761} 6762 6763 6764static int wpa_driver_nl80211_send_mntr(struct wpa_driver_nl80211_data *drv, 6765 const void *data, size_t len, 6766 int encrypt, int noack) 6767{ 6768 __u8 rtap_hdr[] = { 6769 0x00, 0x00, /* radiotap version */ 6770 0x0e, 0x00, /* radiotap length */ 6771 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */ 6772 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */ 6773 0x00, /* padding */ 6774 0x00, 0x00, /* RX and TX flags to indicate that */ 6775 0x00, 0x00, /* this is the injected frame directly */ 6776 }; 6777 struct iovec iov[2] = { 6778 { 6779 .iov_base = &rtap_hdr, 6780 .iov_len = sizeof(rtap_hdr), 6781 }, 6782 { 6783 .iov_base = (void *) data, 6784 .iov_len = len, 6785 } 6786 }; 6787 struct msghdr msg = { 6788 .msg_name = NULL, 6789 .msg_namelen = 0, 6790 .msg_iov = iov, 6791 .msg_iovlen = 2, 6792 .msg_control = NULL, 6793 .msg_controllen = 0, 6794 .msg_flags = 0, 6795 }; 6796 int res; 6797 u16 txflags = 0; 6798 6799 if (encrypt) 6800 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP; 6801 6802 if (drv->monitor_sock < 0) { 6803 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available " 6804 "for %s", __func__); 6805 return -1; 6806 } 6807 6808 if (noack) 6809 txflags |= IEEE80211_RADIOTAP_F_TX_NOACK; 6810 WPA_PUT_LE16(&rtap_hdr[12], txflags); 6811 6812 res = sendmsg(drv->monitor_sock, &msg, 0); 6813 if (res < 0) { 6814 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno)); 6815 return -1; 6816 } 6817 return 0; 6818} 6819 6820 6821static int wpa_driver_nl80211_send_frame(struct i802_bss *bss, 6822 const void *data, size_t len, 6823 int encrypt, int noack, 6824 unsigned int freq, int no_cck, 6825 int offchanok, unsigned int wait_time) 6826{ 6827 struct wpa_driver_nl80211_data *drv = bss->drv; 6828 u64 cookie; 6829 int res; 6830 6831 if (freq == 0) { 6832 wpa_printf(MSG_DEBUG, "nl80211: send_frame - Use bss->freq=%u", 6833 bss->freq); 6834 freq = bss->freq; 6835 } 6836 6837 if (drv->use_monitor) { 6838 wpa_printf(MSG_DEBUG, "nl80211: send_frame(freq=%u bss->freq=%u) -> send_mntr", 6839 freq, bss->freq); 6840 return wpa_driver_nl80211_send_mntr(drv, data, len, 6841 encrypt, noack); 6842 } 6843 6844 wpa_printf(MSG_DEBUG, "nl80211: send_frame -> send_frame_cmd"); 6845 res = nl80211_send_frame_cmd(bss, freq, wait_time, data, len, 6846 &cookie, no_cck, noack, offchanok); 6847 if (res == 0 && !noack) { 6848 const struct ieee80211_mgmt *mgmt; 6849 u16 fc; 6850 6851 mgmt = (const struct ieee80211_mgmt *) data; 6852 fc = le_to_host16(mgmt->frame_control); 6853 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6854 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_ACTION) { 6855 wpa_printf(MSG_MSGDUMP, 6856 "nl80211: Update send_action_cookie from 0x%llx to 0x%llx", 6857 (long long unsigned int) 6858 drv->send_action_cookie, 6859 (long long unsigned int) cookie); 6860 drv->send_action_cookie = cookie; 6861 } 6862 } 6863 6864 return res; 6865} 6866 6867 6868static int wpa_driver_nl80211_send_mlme(struct i802_bss *bss, const u8 *data, 6869 size_t data_len, int noack, 6870 unsigned int freq, int no_cck, 6871 int offchanok, 6872 unsigned int wait_time) 6873{ 6874 struct wpa_driver_nl80211_data *drv = bss->drv; 6875 struct ieee80211_mgmt *mgmt; 6876 int encrypt = 1; 6877 u16 fc; 6878 6879 mgmt = (struct ieee80211_mgmt *) data; 6880 fc = le_to_host16(mgmt->frame_control); 6881 wpa_printf(MSG_DEBUG, "nl80211: send_mlme - noack=%d freq=%u no_cck=%d offchanok=%d wait_time=%u fc=0x%x nlmode=%d", 6882 noack, freq, no_cck, offchanok, wait_time, fc, drv->nlmode); 6883 6884 if ((is_sta_interface(drv->nlmode) || 6885 drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) && 6886 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6887 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) { 6888 /* 6889 * The use of last_mgmt_freq is a bit of a hack, 6890 * but it works due to the single-threaded nature 6891 * of wpa_supplicant. 6892 */ 6893 if (freq == 0) { 6894 wpa_printf(MSG_DEBUG, "nl80211: Use last_mgmt_freq=%d", 6895 drv->last_mgmt_freq); 6896 freq = drv->last_mgmt_freq; 6897 } 6898 return nl80211_send_frame_cmd(bss, freq, 0, 6899 data, data_len, NULL, 1, noack, 6900 1); 6901 } 6902 6903 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) { 6904 if (freq == 0) { 6905 wpa_printf(MSG_DEBUG, "nl80211: Use bss->freq=%d", 6906 bss->freq); 6907 freq = bss->freq; 6908 } 6909 return nl80211_send_frame_cmd(bss, freq, 6910 (int) freq == bss->freq ? 0 : 6911 wait_time, 6912 data, data_len, 6913 &drv->send_action_cookie, 6914 no_cck, noack, offchanok); 6915 } 6916 6917 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6918 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) { 6919 /* 6920 * Only one of the authentication frame types is encrypted. 6921 * In order for static WEP encryption to work properly (i.e., 6922 * to not encrypt the frame), we need to tell mac80211 about 6923 * the frames that must not be encrypted. 6924 */ 6925 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg); 6926 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction); 6927 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3) 6928 encrypt = 0; 6929 } 6930 6931 wpa_printf(MSG_DEBUG, "nl80211: send_mlme -> send_frame"); 6932 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 6933 noack, freq, no_cck, offchanok, 6934 wait_time); 6935} 6936 6937 6938static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble, 6939 int slot, int ht_opmode, int ap_isolate, 6940 int *basic_rates) 6941{ 6942 struct wpa_driver_nl80211_data *drv = bss->drv; 6943 struct nl_msg *msg; 6944 6945 msg = nlmsg_alloc(); 6946 if (!msg) 6947 return -ENOMEM; 6948 6949 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS); 6950 6951 if (cts >= 0) 6952 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts); 6953 if (preamble >= 0) 6954 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble); 6955 if (slot >= 0) 6956 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot); 6957 if (ht_opmode >= 0) 6958 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode); 6959 if (ap_isolate >= 0) 6960 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate); 6961 6962 if (basic_rates) { 6963 u8 rates[NL80211_MAX_SUPP_RATES]; 6964 u8 rates_len = 0; 6965 int i; 6966 6967 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; 6968 i++) 6969 rates[rates_len++] = basic_rates[i] / 5; 6970 6971 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates); 6972 } 6973 6974 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 6975 6976 return send_and_recv_msgs(drv, msg, NULL, NULL); 6977 nla_put_failure: 6978 nlmsg_free(msg); 6979 return -ENOBUFS; 6980} 6981 6982 6983static int wpa_driver_nl80211_set_acl(void *priv, 6984 struct hostapd_acl_params *params) 6985{ 6986 struct i802_bss *bss = priv; 6987 struct wpa_driver_nl80211_data *drv = bss->drv; 6988 struct nl_msg *msg; 6989 struct nlattr *acl; 6990 unsigned int i; 6991 int ret = 0; 6992 6993 if (!(drv->capa.max_acl_mac_addrs)) 6994 return -ENOTSUP; 6995 6996 if (params->num_mac_acl > drv->capa.max_acl_mac_addrs) 6997 return -ENOTSUP; 6998 6999 msg = nlmsg_alloc(); 7000 if (!msg) 7001 return -ENOMEM; 7002 7003 wpa_printf(MSG_DEBUG, "nl80211: Set %s ACL (num_mac_acl=%u)", 7004 params->acl_policy ? "Accept" : "Deny", params->num_mac_acl); 7005 7006 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_MAC_ACL); 7007 7008 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7009 7010 NLA_PUT_U32(msg, NL80211_ATTR_ACL_POLICY, params->acl_policy ? 7011 NL80211_ACL_POLICY_DENY_UNLESS_LISTED : 7012 NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED); 7013 7014 acl = nla_nest_start(msg, NL80211_ATTR_MAC_ADDRS); 7015 if (acl == NULL) 7016 goto nla_put_failure; 7017 7018 for (i = 0; i < params->num_mac_acl; i++) 7019 NLA_PUT(msg, i + 1, ETH_ALEN, params->mac_acl[i].addr); 7020 7021 nla_nest_end(msg, acl); 7022 7023 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7024 msg = NULL; 7025 if (ret) { 7026 wpa_printf(MSG_DEBUG, "nl80211: Failed to set MAC ACL: %d (%s)", 7027 ret, strerror(-ret)); 7028 } 7029 7030nla_put_failure: 7031 nlmsg_free(msg); 7032 7033 return ret; 7034} 7035 7036 7037static int wpa_driver_nl80211_set_ap(void *priv, 7038 struct wpa_driver_ap_params *params) 7039{ 7040 struct i802_bss *bss = priv; 7041 struct wpa_driver_nl80211_data *drv = bss->drv; 7042 struct nl_msg *msg; 7043 u8 cmd = NL80211_CMD_NEW_BEACON; 7044 int ret; 7045 int beacon_set; 7046 int ifindex = if_nametoindex(bss->ifname); 7047 int num_suites; 7048 u32 suites[10], suite; 7049 u32 ver; 7050 7051 beacon_set = bss->beacon_set; 7052 7053 msg = nlmsg_alloc(); 7054 if (!msg) 7055 return -ENOMEM; 7056 7057 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)", 7058 beacon_set); 7059 if (beacon_set) 7060 cmd = NL80211_CMD_SET_BEACON; 7061 7062 nl80211_cmd(drv, msg, 0, cmd); 7063 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon head", 7064 params->head, params->head_len); 7065 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head); 7066 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon tail", 7067 params->tail, params->tail_len); 7068 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail); 7069 wpa_printf(MSG_DEBUG, "nl80211: ifindex=%d", ifindex); 7070 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 7071 wpa_printf(MSG_DEBUG, "nl80211: beacon_int=%d", params->beacon_int); 7072 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int); 7073 wpa_printf(MSG_DEBUG, "nl80211: dtim_period=%d", params->dtim_period); 7074 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period); 7075 wpa_hexdump_ascii(MSG_DEBUG, "nl80211: ssid", 7076 params->ssid, params->ssid_len); 7077 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7078 params->ssid); 7079 if (params->proberesp && params->proberesp_len) { 7080 wpa_hexdump(MSG_DEBUG, "nl80211: proberesp (offload)", 7081 params->proberesp, params->proberesp_len); 7082 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len, 7083 params->proberesp); 7084 } 7085 switch (params->hide_ssid) { 7086 case NO_SSID_HIDING: 7087 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID not in use"); 7088 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 7089 NL80211_HIDDEN_SSID_NOT_IN_USE); 7090 break; 7091 case HIDDEN_SSID_ZERO_LEN: 7092 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero len"); 7093 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 7094 NL80211_HIDDEN_SSID_ZERO_LEN); 7095 break; 7096 case HIDDEN_SSID_ZERO_CONTENTS: 7097 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero contents"); 7098 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 7099 NL80211_HIDDEN_SSID_ZERO_CONTENTS); 7100 break; 7101 } 7102 wpa_printf(MSG_DEBUG, "nl80211: privacy=%d", params->privacy); 7103 if (params->privacy) 7104 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 7105 wpa_printf(MSG_DEBUG, "nl80211: auth_algs=0x%x", params->auth_algs); 7106 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) == 7107 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) { 7108 /* Leave out the attribute */ 7109 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED) 7110 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 7111 NL80211_AUTHTYPE_SHARED_KEY); 7112 else 7113 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 7114 NL80211_AUTHTYPE_OPEN_SYSTEM); 7115 7116 wpa_printf(MSG_DEBUG, "nl80211: wpa_version=0x%x", params->wpa_version); 7117 ver = 0; 7118 if (params->wpa_version & WPA_PROTO_WPA) 7119 ver |= NL80211_WPA_VERSION_1; 7120 if (params->wpa_version & WPA_PROTO_RSN) 7121 ver |= NL80211_WPA_VERSION_2; 7122 if (ver) 7123 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 7124 7125 wpa_printf(MSG_DEBUG, "nl80211: key_mgmt_suites=0x%x", 7126 params->key_mgmt_suites); 7127 num_suites = 0; 7128 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X) 7129 suites[num_suites++] = WLAN_AKM_SUITE_8021X; 7130 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK) 7131 suites[num_suites++] = WLAN_AKM_SUITE_PSK; 7132 if (num_suites) { 7133 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES, 7134 num_suites * sizeof(u32), suites); 7135 } 7136 7137 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X && 7138 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)) 7139 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT); 7140 7141 wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x", 7142 params->pairwise_ciphers); 7143 num_suites = wpa_cipher_to_cipher_suites(params->pairwise_ciphers, 7144 suites, ARRAY_SIZE(suites)); 7145 if (num_suites) { 7146 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, 7147 num_suites * sizeof(u32), suites); 7148 } 7149 7150 wpa_printf(MSG_DEBUG, "nl80211: group_cipher=0x%x", 7151 params->group_cipher); 7152 suite = wpa_cipher_to_cipher_suite(params->group_cipher); 7153 if (suite) 7154 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, suite); 7155 7156 if (params->beacon_ies) { 7157 wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies", 7158 params->beacon_ies); 7159 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies), 7160 wpabuf_head(params->beacon_ies)); 7161 } 7162 if (params->proberesp_ies) { 7163 wpa_hexdump_buf(MSG_DEBUG, "nl80211: proberesp_ies", 7164 params->proberesp_ies); 7165 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, 7166 wpabuf_len(params->proberesp_ies), 7167 wpabuf_head(params->proberesp_ies)); 7168 } 7169 if (params->assocresp_ies) { 7170 wpa_hexdump_buf(MSG_DEBUG, "nl80211: assocresp_ies", 7171 params->assocresp_ies); 7172 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP, 7173 wpabuf_len(params->assocresp_ies), 7174 wpabuf_head(params->assocresp_ies)); 7175 } 7176 7177 if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) { 7178 wpa_printf(MSG_DEBUG, "nl80211: ap_max_inactivity=%d", 7179 params->ap_max_inactivity); 7180 NLA_PUT_U16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT, 7181 params->ap_max_inactivity); 7182 } 7183 7184 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7185 if (ret) { 7186 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)", 7187 ret, strerror(-ret)); 7188 } else { 7189 bss->beacon_set = 1; 7190 nl80211_set_bss(bss, params->cts_protect, params->preamble, 7191 params->short_slot_time, params->ht_opmode, 7192 params->isolate, params->basic_rates); 7193 } 7194 return ret; 7195 nla_put_failure: 7196 nlmsg_free(msg); 7197 return -ENOBUFS; 7198} 7199 7200 7201static int nl80211_put_freq_params(struct nl_msg *msg, 7202 struct hostapd_freq_params *freq) 7203{ 7204 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); 7205 if (freq->vht_enabled) { 7206 switch (freq->bandwidth) { 7207 case 20: 7208 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7209 NL80211_CHAN_WIDTH_20); 7210 break; 7211 case 40: 7212 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7213 NL80211_CHAN_WIDTH_40); 7214 break; 7215 case 80: 7216 if (freq->center_freq2) 7217 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7218 NL80211_CHAN_WIDTH_80P80); 7219 else 7220 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7221 NL80211_CHAN_WIDTH_80); 7222 break; 7223 case 160: 7224 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 7225 NL80211_CHAN_WIDTH_160); 7226 break; 7227 default: 7228 return -EINVAL; 7229 } 7230 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); 7231 if (freq->center_freq2) 7232 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, 7233 freq->center_freq2); 7234 } else if (freq->ht_enabled) { 7235 switch (freq->sec_channel_offset) { 7236 case -1: 7237 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 7238 NL80211_CHAN_HT40MINUS); 7239 break; 7240 case 1: 7241 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 7242 NL80211_CHAN_HT40PLUS); 7243 break; 7244 default: 7245 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 7246 NL80211_CHAN_HT20); 7247 break; 7248 } 7249 } 7250 return 0; 7251 7252nla_put_failure: 7253 return -ENOBUFS; 7254} 7255 7256 7257static int wpa_driver_nl80211_set_freq(struct i802_bss *bss, 7258 struct hostapd_freq_params *freq) 7259{ 7260 struct wpa_driver_nl80211_data *drv = bss->drv; 7261 struct nl_msg *msg; 7262 int ret; 7263 7264 wpa_printf(MSG_DEBUG, 7265 "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d, bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)", 7266 freq->freq, freq->ht_enabled, freq->vht_enabled, 7267 freq->bandwidth, freq->center_freq1, freq->center_freq2); 7268 msg = nlmsg_alloc(); 7269 if (!msg) 7270 return -1; 7271 7272 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 7273 7274 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7275 if (nl80211_put_freq_params(msg, freq) < 0) 7276 goto nla_put_failure; 7277 7278 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7279 msg = NULL; 7280 if (ret == 0) { 7281 bss->freq = freq->freq; 7282 return 0; 7283 } 7284 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): " 7285 "%d (%s)", freq->freq, ret, strerror(-ret)); 7286nla_put_failure: 7287 nlmsg_free(msg); 7288 return -1; 7289} 7290 7291 7292static u32 sta_flags_nl80211(int flags) 7293{ 7294 u32 f = 0; 7295 7296 if (flags & WPA_STA_AUTHORIZED) 7297 f |= BIT(NL80211_STA_FLAG_AUTHORIZED); 7298 if (flags & WPA_STA_WMM) 7299 f |= BIT(NL80211_STA_FLAG_WME); 7300 if (flags & WPA_STA_SHORT_PREAMBLE) 7301 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); 7302 if (flags & WPA_STA_MFP) 7303 f |= BIT(NL80211_STA_FLAG_MFP); 7304 if (flags & WPA_STA_TDLS_PEER) 7305 f |= BIT(NL80211_STA_FLAG_TDLS_PEER); 7306 7307 return f; 7308} 7309 7310 7311static int wpa_driver_nl80211_sta_add(void *priv, 7312 struct hostapd_sta_add_params *params) 7313{ 7314 struct i802_bss *bss = priv; 7315 struct wpa_driver_nl80211_data *drv = bss->drv; 7316 struct nl_msg *msg; 7317 struct nl80211_sta_flag_update upd; 7318 int ret = -ENOBUFS; 7319 7320 if ((params->flags & WPA_STA_TDLS_PEER) && 7321 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 7322 return -EOPNOTSUPP; 7323 7324 msg = nlmsg_alloc(); 7325 if (!msg) 7326 return -ENOMEM; 7327 7328 wpa_printf(MSG_DEBUG, "nl80211: %s STA " MACSTR, 7329 params->set ? "Set" : "Add", MAC2STR(params->addr)); 7330 nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION : 7331 NL80211_CMD_NEW_STATION); 7332 7333 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 7334 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr); 7335 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len, 7336 params->supp_rates); 7337 wpa_hexdump(MSG_DEBUG, " * supported rates", params->supp_rates, 7338 params->supp_rates_len); 7339 if (!params->set) { 7340 if (params->aid) { 7341 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid); 7342 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid); 7343 } else { 7344 /* 7345 * cfg80211 validates that AID is non-zero, so we have 7346 * to make this a non-zero value for the TDLS case where 7347 * a dummy STA entry is used for now. 7348 */ 7349 wpa_printf(MSG_DEBUG, " * aid=1 (TDLS workaround)"); 7350 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, 1); 7351 } 7352 wpa_printf(MSG_DEBUG, " * listen_interval=%u", 7353 params->listen_interval); 7354 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, 7355 params->listen_interval); 7356 } else if (params->aid && (params->flags & WPA_STA_TDLS_PEER)) { 7357 wpa_printf(MSG_DEBUG, " * peer_aid=%u", params->aid); 7358 NLA_PUT_U16(msg, NL80211_ATTR_PEER_AID, params->aid); 7359 } 7360 if (params->ht_capabilities) { 7361 wpa_hexdump(MSG_DEBUG, " * ht_capabilities", 7362 (u8 *) params->ht_capabilities, 7363 sizeof(*params->ht_capabilities)); 7364 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, 7365 sizeof(*params->ht_capabilities), 7366 params->ht_capabilities); 7367 } 7368 7369 if (params->vht_capabilities) { 7370 wpa_hexdump(MSG_DEBUG, " * vht_capabilities", 7371 (u8 *) params->vht_capabilities, 7372 sizeof(*params->vht_capabilities)); 7373 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, 7374 sizeof(*params->vht_capabilities), 7375 params->vht_capabilities); 7376 } 7377 7378 if (params->vht_opmode_enabled) { 7379 wpa_printf(MSG_DEBUG, " * opmode=%u", params->vht_opmode); 7380 NLA_PUT_U8(msg, NL80211_ATTR_OPMODE_NOTIF, 7381 params->vht_opmode); 7382 } 7383 7384 wpa_printf(MSG_DEBUG, " * capability=0x%x", params->capability); 7385 NLA_PUT_U16(msg, NL80211_ATTR_STA_CAPABILITY, params->capability); 7386 7387 if (params->ext_capab) { 7388 wpa_hexdump(MSG_DEBUG, " * ext_capab", 7389 params->ext_capab, params->ext_capab_len); 7390 NLA_PUT(msg, NL80211_ATTR_STA_EXT_CAPABILITY, 7391 params->ext_capab_len, params->ext_capab); 7392 } 7393 7394 if (params->supp_channels) { 7395 wpa_hexdump(MSG_DEBUG, " * supported channels", 7396 params->supp_channels, params->supp_channels_len); 7397 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_CHANNELS, 7398 params->supp_channels_len, params->supp_channels); 7399 } 7400 7401 if (params->supp_oper_classes) { 7402 wpa_hexdump(MSG_DEBUG, " * supported operating classes", 7403 params->supp_oper_classes, 7404 params->supp_oper_classes_len); 7405 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES, 7406 params->supp_oper_classes_len, 7407 params->supp_oper_classes); 7408 } 7409 7410 os_memset(&upd, 0, sizeof(upd)); 7411 upd.mask = sta_flags_nl80211(params->flags); 7412 upd.set = upd.mask; 7413 wpa_printf(MSG_DEBUG, " * flags set=0x%x mask=0x%x", 7414 upd.set, upd.mask); 7415 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 7416 7417 if (params->flags & WPA_STA_WMM) { 7418 struct nlattr *wme = nla_nest_start(msg, NL80211_ATTR_STA_WME); 7419 7420 if (!wme) 7421 goto nla_put_failure; 7422 7423 wpa_printf(MSG_DEBUG, " * qosinfo=0x%x", params->qosinfo); 7424 NLA_PUT_U8(msg, NL80211_STA_WME_UAPSD_QUEUES, 7425 params->qosinfo & WMM_QOSINFO_STA_AC_MASK); 7426 NLA_PUT_U8(msg, NL80211_STA_WME_MAX_SP, 7427 (params->qosinfo >> WMM_QOSINFO_STA_SP_SHIFT) & 7428 WMM_QOSINFO_STA_SP_MASK); 7429 nla_nest_end(msg, wme); 7430 } 7431 7432 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7433 msg = NULL; 7434 if (ret) 7435 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION " 7436 "result: %d (%s)", params->set ? "SET" : "NEW", ret, 7437 strerror(-ret)); 7438 if (ret == -EEXIST) 7439 ret = 0; 7440 nla_put_failure: 7441 nlmsg_free(msg); 7442 return ret; 7443} 7444 7445 7446static int wpa_driver_nl80211_sta_remove(struct i802_bss *bss, const u8 *addr) 7447{ 7448 struct wpa_driver_nl80211_data *drv = bss->drv; 7449 struct nl_msg *msg; 7450 int ret; 7451 7452 msg = nlmsg_alloc(); 7453 if (!msg) 7454 return -ENOMEM; 7455 7456 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 7457 7458 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 7459 if_nametoindex(bss->ifname)); 7460 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 7461 7462 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7463 wpa_printf(MSG_DEBUG, "nl80211: sta_remove -> DEL_STATION %s " MACSTR 7464 " --> %d (%s)", 7465 bss->ifname, MAC2STR(addr), ret, strerror(-ret)); 7466 if (ret == -ENOENT) 7467 return 0; 7468 return ret; 7469 nla_put_failure: 7470 nlmsg_free(msg); 7471 return -ENOBUFS; 7472} 7473 7474 7475static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, 7476 int ifidx) 7477{ 7478 struct nl_msg *msg; 7479 7480 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx); 7481 7482 /* stop listening for EAPOL on this interface */ 7483 del_ifidx(drv, ifidx); 7484 7485 msg = nlmsg_alloc(); 7486 if (!msg) 7487 goto nla_put_failure; 7488 7489 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 7490 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx); 7491 7492 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 7493 return; 7494 msg = NULL; 7495 nla_put_failure: 7496 nlmsg_free(msg); 7497 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx); 7498} 7499 7500 7501static const char * nl80211_iftype_str(enum nl80211_iftype mode) 7502{ 7503 switch (mode) { 7504 case NL80211_IFTYPE_ADHOC: 7505 return "ADHOC"; 7506 case NL80211_IFTYPE_STATION: 7507 return "STATION"; 7508 case NL80211_IFTYPE_AP: 7509 return "AP"; 7510 case NL80211_IFTYPE_AP_VLAN: 7511 return "AP_VLAN"; 7512 case NL80211_IFTYPE_WDS: 7513 return "WDS"; 7514 case NL80211_IFTYPE_MONITOR: 7515 return "MONITOR"; 7516 case NL80211_IFTYPE_MESH_POINT: 7517 return "MESH_POINT"; 7518 case NL80211_IFTYPE_P2P_CLIENT: 7519 return "P2P_CLIENT"; 7520 case NL80211_IFTYPE_P2P_GO: 7521 return "P2P_GO"; 7522 case NL80211_IFTYPE_P2P_DEVICE: 7523 return "P2P_DEVICE"; 7524 default: 7525 return "unknown"; 7526 } 7527} 7528 7529 7530static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv, 7531 const char *ifname, 7532 enum nl80211_iftype iftype, 7533 const u8 *addr, int wds, 7534 int (*handler)(struct nl_msg *, void *), 7535 void *arg) 7536{ 7537 struct nl_msg *msg; 7538 int ifidx; 7539 int ret = -ENOBUFS; 7540 7541 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)", 7542 iftype, nl80211_iftype_str(iftype)); 7543 7544 msg = nlmsg_alloc(); 7545 if (!msg) 7546 return -1; 7547 7548 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE); 7549 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 7550 goto nla_put_failure; 7551 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname); 7552 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype); 7553 7554 if (iftype == NL80211_IFTYPE_MONITOR) { 7555 struct nlattr *flags; 7556 7557 flags = nla_nest_start(msg, NL80211_ATTR_MNTR_FLAGS); 7558 if (!flags) 7559 goto nla_put_failure; 7560 7561 NLA_PUT_FLAG(msg, NL80211_MNTR_FLAG_COOK_FRAMES); 7562 7563 nla_nest_end(msg, flags); 7564 } else if (wds) { 7565 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds); 7566 } 7567 7568 ret = send_and_recv_msgs(drv, msg, handler, arg); 7569 msg = NULL; 7570 if (ret) { 7571 nla_put_failure: 7572 nlmsg_free(msg); 7573 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)", 7574 ifname, ret, strerror(-ret)); 7575 return ret; 7576 } 7577 7578 if (iftype == NL80211_IFTYPE_P2P_DEVICE) 7579 return 0; 7580 7581 ifidx = if_nametoindex(ifname); 7582 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d", 7583 ifname, ifidx); 7584 7585 if (ifidx <= 0) 7586 return -1; 7587 7588 /* start listening for EAPOL on this interface */ 7589 add_ifidx(drv, ifidx); 7590 7591 if (addr && iftype != NL80211_IFTYPE_MONITOR && 7592 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) { 7593 nl80211_remove_iface(drv, ifidx); 7594 return -1; 7595 } 7596 7597 return ifidx; 7598} 7599 7600 7601static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv, 7602 const char *ifname, enum nl80211_iftype iftype, 7603 const u8 *addr, int wds, 7604 int (*handler)(struct nl_msg *, void *), 7605 void *arg, int use_existing) 7606{ 7607 int ret; 7608 7609 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds, handler, 7610 arg); 7611 7612 /* if error occurred and interface exists already */ 7613 if (ret == -ENFILE && if_nametoindex(ifname)) { 7614 if (use_existing) { 7615 wpa_printf(MSG_DEBUG, "nl80211: Continue using existing interface %s", 7616 ifname); 7617 return -ENFILE; 7618 } 7619 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname); 7620 7621 /* Try to remove the interface that was already there. */ 7622 nl80211_remove_iface(drv, if_nametoindex(ifname)); 7623 7624 /* Try to create the interface again */ 7625 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, 7626 wds, handler, arg); 7627 } 7628 7629 if (ret >= 0 && is_p2p_net_interface(iftype)) 7630 nl80211_disable_11b_rates(drv, ret, 1); 7631 7632 return ret; 7633} 7634 7635 7636static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok) 7637{ 7638 struct ieee80211_hdr *hdr; 7639 u16 fc; 7640 union wpa_event_data event; 7641 7642 hdr = (struct ieee80211_hdr *) buf; 7643 fc = le_to_host16(hdr->frame_control); 7644 7645 os_memset(&event, 0, sizeof(event)); 7646 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 7647 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 7648 event.tx_status.dst = hdr->addr1; 7649 event.tx_status.data = buf; 7650 event.tx_status.data_len = len; 7651 event.tx_status.ack = ok; 7652 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event); 7653} 7654 7655 7656static void from_unknown_sta(struct wpa_driver_nl80211_data *drv, 7657 u8 *buf, size_t len) 7658{ 7659 struct ieee80211_hdr *hdr = (void *)buf; 7660 u16 fc; 7661 union wpa_event_data event; 7662 7663 if (len < sizeof(*hdr)) 7664 return; 7665 7666 fc = le_to_host16(hdr->frame_control); 7667 7668 os_memset(&event, 0, sizeof(event)); 7669 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len); 7670 event.rx_from_unknown.addr = hdr->addr2; 7671 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) == 7672 (WLAN_FC_FROMDS | WLAN_FC_TODS); 7673 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 7674} 7675 7676 7677static void handle_frame(struct wpa_driver_nl80211_data *drv, 7678 u8 *buf, size_t len, int datarate, int ssi_signal) 7679{ 7680 struct ieee80211_hdr *hdr; 7681 u16 fc; 7682 union wpa_event_data event; 7683 7684 hdr = (struct ieee80211_hdr *) buf; 7685 fc = le_to_host16(hdr->frame_control); 7686 7687 switch (WLAN_FC_GET_TYPE(fc)) { 7688 case WLAN_FC_TYPE_MGMT: 7689 os_memset(&event, 0, sizeof(event)); 7690 event.rx_mgmt.frame = buf; 7691 event.rx_mgmt.frame_len = len; 7692 event.rx_mgmt.datarate = datarate; 7693 event.rx_mgmt.ssi_signal = ssi_signal; 7694 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 7695 break; 7696 case WLAN_FC_TYPE_CTRL: 7697 /* can only get here with PS-Poll frames */ 7698 wpa_printf(MSG_DEBUG, "CTRL"); 7699 from_unknown_sta(drv, buf, len); 7700 break; 7701 case WLAN_FC_TYPE_DATA: 7702 from_unknown_sta(drv, buf, len); 7703 break; 7704 } 7705} 7706 7707 7708static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx) 7709{ 7710 struct wpa_driver_nl80211_data *drv = eloop_ctx; 7711 int len; 7712 unsigned char buf[3000]; 7713 struct ieee80211_radiotap_iterator iter; 7714 int ret; 7715 int datarate = 0, ssi_signal = 0; 7716 int injected = 0, failed = 0, rxflags = 0; 7717 7718 len = recv(sock, buf, sizeof(buf), 0); 7719 if (len < 0) { 7720 wpa_printf(MSG_ERROR, "nl80211: Monitor socket recv failed: %s", 7721 strerror(errno)); 7722 return; 7723 } 7724 7725 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) { 7726 wpa_printf(MSG_INFO, "nl80211: received invalid radiotap frame"); 7727 return; 7728 } 7729 7730 while (1) { 7731 ret = ieee80211_radiotap_iterator_next(&iter); 7732 if (ret == -ENOENT) 7733 break; 7734 if (ret) { 7735 wpa_printf(MSG_INFO, "nl80211: received invalid radiotap frame (%d)", 7736 ret); 7737 return; 7738 } 7739 switch (iter.this_arg_index) { 7740 case IEEE80211_RADIOTAP_FLAGS: 7741 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS) 7742 len -= 4; 7743 break; 7744 case IEEE80211_RADIOTAP_RX_FLAGS: 7745 rxflags = 1; 7746 break; 7747 case IEEE80211_RADIOTAP_TX_FLAGS: 7748 injected = 1; 7749 failed = le_to_host16((*(uint16_t *) iter.this_arg)) & 7750 IEEE80211_RADIOTAP_F_TX_FAIL; 7751 break; 7752 case IEEE80211_RADIOTAP_DATA_RETRIES: 7753 break; 7754 case IEEE80211_RADIOTAP_CHANNEL: 7755 /* TODO: convert from freq/flags to channel number */ 7756 break; 7757 case IEEE80211_RADIOTAP_RATE: 7758 datarate = *iter.this_arg * 5; 7759 break; 7760 case IEEE80211_RADIOTAP_DBM_ANTSIGNAL: 7761 ssi_signal = (s8) *iter.this_arg; 7762 break; 7763 } 7764 } 7765 7766 if (rxflags && injected) 7767 return; 7768 7769 if (!injected) 7770 handle_frame(drv, buf + iter.max_length, 7771 len - iter.max_length, datarate, ssi_signal); 7772 else 7773 handle_tx_callback(drv->ctx, buf + iter.max_length, 7774 len - iter.max_length, !failed); 7775} 7776 7777 7778/* 7779 * we post-process the filter code later and rewrite 7780 * this to the offset to the last instruction 7781 */ 7782#define PASS 0xFF 7783#define FAIL 0xFE 7784 7785static struct sock_filter msock_filter_insns[] = { 7786 /* 7787 * do a little-endian load of the radiotap length field 7788 */ 7789 /* load lower byte into A */ 7790 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2), 7791 /* put it into X (== index register) */ 7792 BPF_STMT(BPF_MISC| BPF_TAX, 0), 7793 /* load upper byte into A */ 7794 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3), 7795 /* left-shift it by 8 */ 7796 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8), 7797 /* or with X */ 7798 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0), 7799 /* put result into X */ 7800 BPF_STMT(BPF_MISC| BPF_TAX, 0), 7801 7802 /* 7803 * Allow management frames through, this also gives us those 7804 * management frames that we sent ourselves with status 7805 */ 7806 /* load the lower byte of the IEEE 802.11 frame control field */ 7807 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7808 /* mask off frame type and version */ 7809 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF), 7810 /* accept frame if it's both 0, fall through otherwise */ 7811 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0), 7812 7813 /* 7814 * TODO: add a bit to radiotap RX flags that indicates 7815 * that the sending station is not associated, then 7816 * add a filter here that filters on our DA and that flag 7817 * to allow us to deauth frames to that bad station. 7818 * 7819 * For now allow all To DS data frames through. 7820 */ 7821 /* load the IEEE 802.11 frame control field */ 7822 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0), 7823 /* mask off frame type, version and DS status */ 7824 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03), 7825 /* accept frame if version 0, type 2 and To DS, fall through otherwise 7826 */ 7827 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0), 7828 7829#if 0 7830 /* 7831 * drop non-data frames 7832 */ 7833 /* load the lower byte of the frame control field */ 7834 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7835 /* mask off QoS bit */ 7836 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c), 7837 /* drop non-data frames */ 7838 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL), 7839#endif 7840 /* load the upper byte of the frame control field */ 7841 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1), 7842 /* mask off toDS/fromDS */ 7843 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03), 7844 /* accept WDS frames */ 7845 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0), 7846 7847 /* 7848 * add header length to index 7849 */ 7850 /* load the lower byte of the frame control field */ 7851 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7852 /* mask off QoS bit */ 7853 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80), 7854 /* right shift it by 6 to give 0 or 2 */ 7855 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6), 7856 /* add data frame header length */ 7857 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24), 7858 /* add index, was start of 802.11 header */ 7859 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), 7860 /* move to index, now start of LL header */ 7861 BPF_STMT(BPF_MISC | BPF_TAX, 0), 7862 7863 /* 7864 * Accept empty data frames, we use those for 7865 * polling activity. 7866 */ 7867 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0), 7868 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0), 7869 7870 /* 7871 * Accept EAPOL frames 7872 */ 7873 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0), 7874 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL), 7875 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4), 7876 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL), 7877 7878 /* keep these last two statements or change the code below */ 7879 /* return 0 == "DROP" */ 7880 BPF_STMT(BPF_RET | BPF_K, 0), 7881 /* return ~0 == "keep all" */ 7882 BPF_STMT(BPF_RET | BPF_K, ~0), 7883}; 7884 7885static struct sock_fprog msock_filter = { 7886 .len = ARRAY_SIZE(msock_filter_insns), 7887 .filter = msock_filter_insns, 7888}; 7889 7890 7891static int add_monitor_filter(int s) 7892{ 7893 int idx; 7894 7895 /* rewrite all PASS/FAIL jump offsets */ 7896 for (idx = 0; idx < msock_filter.len; idx++) { 7897 struct sock_filter *insn = &msock_filter_insns[idx]; 7898 7899 if (BPF_CLASS(insn->code) == BPF_JMP) { 7900 if (insn->code == (BPF_JMP|BPF_JA)) { 7901 if (insn->k == PASS) 7902 insn->k = msock_filter.len - idx - 2; 7903 else if (insn->k == FAIL) 7904 insn->k = msock_filter.len - idx - 3; 7905 } 7906 7907 if (insn->jt == PASS) 7908 insn->jt = msock_filter.len - idx - 2; 7909 else if (insn->jt == FAIL) 7910 insn->jt = msock_filter.len - idx - 3; 7911 7912 if (insn->jf == PASS) 7913 insn->jf = msock_filter.len - idx - 2; 7914 else if (insn->jf == FAIL) 7915 insn->jf = msock_filter.len - idx - 3; 7916 } 7917 } 7918 7919 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER, 7920 &msock_filter, sizeof(msock_filter))) { 7921 wpa_printf(MSG_ERROR, "nl80211: setsockopt(SO_ATTACH_FILTER) failed: %s", 7922 strerror(errno)); 7923 return -1; 7924 } 7925 7926 return 0; 7927} 7928 7929 7930static void nl80211_remove_monitor_interface( 7931 struct wpa_driver_nl80211_data *drv) 7932{ 7933 if (drv->monitor_refcount > 0) 7934 drv->monitor_refcount--; 7935 wpa_printf(MSG_DEBUG, "nl80211: Remove monitor interface: refcount=%d", 7936 drv->monitor_refcount); 7937 if (drv->monitor_refcount > 0) 7938 return; 7939 7940 if (drv->monitor_ifidx >= 0) { 7941 nl80211_remove_iface(drv, drv->monitor_ifidx); 7942 drv->monitor_ifidx = -1; 7943 } 7944 if (drv->monitor_sock >= 0) { 7945 eloop_unregister_read_sock(drv->monitor_sock); 7946 close(drv->monitor_sock); 7947 drv->monitor_sock = -1; 7948 } 7949} 7950 7951 7952static int 7953nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv) 7954{ 7955 char buf[IFNAMSIZ]; 7956 struct sockaddr_ll ll; 7957 int optval; 7958 socklen_t optlen; 7959 7960 if (drv->monitor_ifidx >= 0) { 7961 drv->monitor_refcount++; 7962 wpa_printf(MSG_DEBUG, "nl80211: Re-use existing monitor interface: refcount=%d", 7963 drv->monitor_refcount); 7964 return 0; 7965 } 7966 7967 if (os_strncmp(drv->first_bss->ifname, "p2p-", 4) == 0) { 7968 /* 7969 * P2P interface name is of the format p2p-%s-%d. For monitor 7970 * interface name corresponding to P2P GO, replace "p2p-" with 7971 * "mon-" to retain the same interface name length and to 7972 * indicate that it is a monitor interface. 7973 */ 7974 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss->ifname + 4); 7975 } else { 7976 /* Non-P2P interface with AP functionality. */ 7977 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss->ifname); 7978 } 7979 7980 buf[IFNAMSIZ - 1] = '\0'; 7981 7982 drv->monitor_ifidx = 7983 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL, 7984 0, NULL, NULL, 0); 7985 7986 if (drv->monitor_ifidx == -EOPNOTSUPP) { 7987 /* 7988 * This is backward compatibility for a few versions of 7989 * the kernel only that didn't advertise the right 7990 * attributes for the only driver that then supported 7991 * AP mode w/o monitor -- ath6kl. 7992 */ 7993 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support " 7994 "monitor interface type - try to run without it"); 7995 drv->device_ap_sme = 1; 7996 } 7997 7998 if (drv->monitor_ifidx < 0) 7999 return -1; 8000 8001 if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1)) 8002 goto error; 8003 8004 memset(&ll, 0, sizeof(ll)); 8005 ll.sll_family = AF_PACKET; 8006 ll.sll_ifindex = drv->monitor_ifidx; 8007 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)); 8008 if (drv->monitor_sock < 0) { 8009 wpa_printf(MSG_ERROR, "nl80211: socket[PF_PACKET,SOCK_RAW] failed: %s", 8010 strerror(errno)); 8011 goto error; 8012 } 8013 8014 if (add_monitor_filter(drv->monitor_sock)) { 8015 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor " 8016 "interface; do filtering in user space"); 8017 /* This works, but will cost in performance. */ 8018 } 8019 8020 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) { 8021 wpa_printf(MSG_ERROR, "nl80211: monitor socket bind failed: %s", 8022 strerror(errno)); 8023 goto error; 8024 } 8025 8026 optlen = sizeof(optval); 8027 optval = 20; 8028 if (setsockopt 8029 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) { 8030 wpa_printf(MSG_ERROR, "nl80211: Failed to set socket priority: %s", 8031 strerror(errno)); 8032 goto error; 8033 } 8034 8035 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read, 8036 drv, NULL)) { 8037 wpa_printf(MSG_INFO, "nl80211: Could not register monitor read socket"); 8038 goto error; 8039 } 8040 8041 drv->monitor_refcount++; 8042 return 0; 8043 error: 8044 nl80211_remove_monitor_interface(drv); 8045 return -1; 8046} 8047 8048 8049static int nl80211_setup_ap(struct i802_bss *bss) 8050{ 8051 struct wpa_driver_nl80211_data *drv = bss->drv; 8052 8053 wpa_printf(MSG_DEBUG, "nl80211: Setup AP(%s) - device_ap_sme=%d use_monitor=%d", 8054 bss->ifname, drv->device_ap_sme, drv->use_monitor); 8055 8056 /* 8057 * Disable Probe Request reporting unless we need it in this way for 8058 * devices that include the AP SME, in the other case (unless using 8059 * monitor iface) we'll get it through the nl_mgmt socket instead. 8060 */ 8061 if (!drv->device_ap_sme) 8062 wpa_driver_nl80211_probe_req_report(bss, 0); 8063 8064 if (!drv->device_ap_sme && !drv->use_monitor) 8065 if (nl80211_mgmt_subscribe_ap(bss)) 8066 return -1; 8067 8068 if (drv->device_ap_sme && !drv->use_monitor) 8069 if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) 8070 return -1; 8071 8072 if (!drv->device_ap_sme && drv->use_monitor && 8073 nl80211_create_monitor_interface(drv) && 8074 !drv->device_ap_sme) 8075 return -1; 8076 8077 if (drv->device_ap_sme && 8078 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) { 8079 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable " 8080 "Probe Request frame reporting in AP mode"); 8081 /* Try to survive without this */ 8082 } 8083 8084 return 0; 8085} 8086 8087 8088static void nl80211_teardown_ap(struct i802_bss *bss) 8089{ 8090 struct wpa_driver_nl80211_data *drv = bss->drv; 8091 8092 wpa_printf(MSG_DEBUG, "nl80211: Teardown AP(%s) - device_ap_sme=%d use_monitor=%d", 8093 bss->ifname, drv->device_ap_sme, drv->use_monitor); 8094 if (drv->device_ap_sme) { 8095 wpa_driver_nl80211_probe_req_report(bss, 0); 8096 if (!drv->use_monitor) 8097 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)"); 8098 } else if (drv->use_monitor) 8099 nl80211_remove_monitor_interface(drv); 8100 else 8101 nl80211_mgmt_unsubscribe(bss, "AP teardown"); 8102 8103 bss->beacon_set = 0; 8104} 8105 8106 8107static int nl80211_send_eapol_data(struct i802_bss *bss, 8108 const u8 *addr, const u8 *data, 8109 size_t data_len) 8110{ 8111 struct sockaddr_ll ll; 8112 int ret; 8113 8114 if (bss->drv->eapol_tx_sock < 0) { 8115 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL"); 8116 return -1; 8117 } 8118 8119 os_memset(&ll, 0, sizeof(ll)); 8120 ll.sll_family = AF_PACKET; 8121 ll.sll_ifindex = bss->ifindex; 8122 ll.sll_protocol = htons(ETH_P_PAE); 8123 ll.sll_halen = ETH_ALEN; 8124 os_memcpy(ll.sll_addr, addr, ETH_ALEN); 8125 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0, 8126 (struct sockaddr *) &ll, sizeof(ll)); 8127 if (ret < 0) 8128 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s", 8129 strerror(errno)); 8130 8131 return ret; 8132} 8133 8134 8135static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 8136 8137static int wpa_driver_nl80211_hapd_send_eapol( 8138 void *priv, const u8 *addr, const u8 *data, 8139 size_t data_len, int encrypt, const u8 *own_addr, u32 flags) 8140{ 8141 struct i802_bss *bss = priv; 8142 struct wpa_driver_nl80211_data *drv = bss->drv; 8143 struct ieee80211_hdr *hdr; 8144 size_t len; 8145 u8 *pos; 8146 int res; 8147 int qos = flags & WPA_STA_WMM; 8148 8149 if (drv->device_ap_sme || !drv->use_monitor) 8150 return nl80211_send_eapol_data(bss, addr, data, data_len); 8151 8152 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 + 8153 data_len; 8154 hdr = os_zalloc(len); 8155 if (hdr == NULL) { 8156 wpa_printf(MSG_INFO, "nl80211: Failed to allocate EAPOL buffer(len=%lu)", 8157 (unsigned long) len); 8158 return -1; 8159 } 8160 8161 hdr->frame_control = 8162 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA); 8163 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS); 8164 if (encrypt) 8165 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP); 8166 if (qos) { 8167 hdr->frame_control |= 8168 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4); 8169 } 8170 8171 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN); 8172 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 8173 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 8174 pos = (u8 *) (hdr + 1); 8175 8176 if (qos) { 8177 /* Set highest priority in QoS header */ 8178 pos[0] = 7; 8179 pos[1] = 0; 8180 pos += 2; 8181 } 8182 8183 memcpy(pos, rfc1042_header, sizeof(rfc1042_header)); 8184 pos += sizeof(rfc1042_header); 8185 WPA_PUT_BE16(pos, ETH_P_PAE); 8186 pos += 2; 8187 memcpy(pos, data, data_len); 8188 8189 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0, 8190 0, 0, 0, 0); 8191 if (res < 0) { 8192 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - " 8193 "failed: %d (%s)", 8194 (unsigned long) len, errno, strerror(errno)); 8195 } 8196 os_free(hdr); 8197 8198 return res; 8199} 8200 8201 8202static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr, 8203 int total_flags, 8204 int flags_or, int flags_and) 8205{ 8206 struct i802_bss *bss = priv; 8207 struct wpa_driver_nl80211_data *drv = bss->drv; 8208 struct nl_msg *msg; 8209 struct nlattr *flags; 8210 struct nl80211_sta_flag_update upd; 8211 8212 msg = nlmsg_alloc(); 8213 if (!msg) 8214 return -ENOMEM; 8215 8216 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8217 8218 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8219 if_nametoindex(bss->ifname)); 8220 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8221 8222 /* 8223 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This 8224 * can be removed eventually. 8225 */ 8226 flags = nla_nest_start(msg, NL80211_ATTR_STA_FLAGS); 8227 if (!flags) 8228 goto nla_put_failure; 8229 if (total_flags & WPA_STA_AUTHORIZED) 8230 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_AUTHORIZED); 8231 8232 if (total_flags & WPA_STA_WMM) 8233 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_WME); 8234 8235 if (total_flags & WPA_STA_SHORT_PREAMBLE) 8236 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_SHORT_PREAMBLE); 8237 8238 if (total_flags & WPA_STA_MFP) 8239 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_MFP); 8240 8241 if (total_flags & WPA_STA_TDLS_PEER) 8242 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_TDLS_PEER); 8243 8244 nla_nest_end(msg, flags); 8245 8246 os_memset(&upd, 0, sizeof(upd)); 8247 upd.mask = sta_flags_nl80211(flags_or | ~flags_and); 8248 upd.set = sta_flags_nl80211(flags_or); 8249 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 8250 8251 return send_and_recv_msgs(drv, msg, NULL, NULL); 8252 nla_put_failure: 8253 nlmsg_free(msg); 8254 return -ENOBUFS; 8255} 8256 8257 8258static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv, 8259 struct wpa_driver_associate_params *params) 8260{ 8261 enum nl80211_iftype nlmode, old_mode; 8262 struct hostapd_freq_params freq = { 8263 .freq = params->freq, 8264 }; 8265 8266 if (params->p2p) { 8267 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P " 8268 "group (GO)"); 8269 nlmode = NL80211_IFTYPE_P2P_GO; 8270 } else 8271 nlmode = NL80211_IFTYPE_AP; 8272 8273 old_mode = drv->nlmode; 8274 if (wpa_driver_nl80211_set_mode(drv->first_bss, nlmode)) { 8275 nl80211_remove_monitor_interface(drv); 8276 return -1; 8277 } 8278 8279 if (wpa_driver_nl80211_set_freq(drv->first_bss, &freq)) { 8280 if (old_mode != nlmode) 8281 wpa_driver_nl80211_set_mode(drv->first_bss, old_mode); 8282 nl80211_remove_monitor_interface(drv); 8283 return -1; 8284 } 8285 8286 return 0; 8287} 8288 8289 8290static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv) 8291{ 8292 struct nl_msg *msg; 8293 int ret = -1; 8294 8295 msg = nlmsg_alloc(); 8296 if (!msg) 8297 return -1; 8298 8299 nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS); 8300 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8301 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8302 msg = NULL; 8303 if (ret) { 8304 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d " 8305 "(%s)", ret, strerror(-ret)); 8306 goto nla_put_failure; 8307 } 8308 8309 ret = 0; 8310 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully"); 8311 8312nla_put_failure: 8313 if (wpa_driver_nl80211_set_mode(drv->first_bss, 8314 NL80211_IFTYPE_STATION)) { 8315 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 8316 "station mode"); 8317 } 8318 8319 nlmsg_free(msg); 8320 return ret; 8321} 8322 8323 8324static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv, 8325 struct wpa_driver_associate_params *params) 8326{ 8327 struct nl_msg *msg; 8328 int ret = -1; 8329 int count = 0; 8330 8331 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex); 8332 8333 if (wpa_driver_nl80211_set_mode(drv->first_bss, 8334 NL80211_IFTYPE_ADHOC)) { 8335 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 8336 "IBSS mode"); 8337 return -1; 8338 } 8339 8340retry: 8341 msg = nlmsg_alloc(); 8342 if (!msg) 8343 return -1; 8344 8345 nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS); 8346 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8347 8348 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid)) 8349 goto nla_put_failure; 8350 8351 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 8352 params->ssid, params->ssid_len); 8353 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 8354 params->ssid); 8355 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 8356 drv->ssid_len = params->ssid_len; 8357 8358 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 8359 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 8360 8361 ret = nl80211_set_conn_keys(params, msg); 8362 if (ret) 8363 goto nla_put_failure; 8364 8365 if (params->bssid && params->fixed_bssid) { 8366 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR, 8367 MAC2STR(params->bssid)); 8368 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 8369 } 8370 8371 if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X || 8372 params->key_mgmt_suite == WPA_KEY_MGMT_PSK || 8373 params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 || 8374 params->key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256) { 8375 wpa_printf(MSG_DEBUG, " * control port"); 8376 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 8377 } 8378 8379 if (params->wpa_ie) { 8380 wpa_hexdump(MSG_DEBUG, 8381 " * Extra IEs for Beacon/Probe Response frames", 8382 params->wpa_ie, params->wpa_ie_len); 8383 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 8384 params->wpa_ie); 8385 } 8386 8387 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8388 msg = NULL; 8389 if (ret) { 8390 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)", 8391 ret, strerror(-ret)); 8392 count++; 8393 if (ret == -EALREADY && count == 1) { 8394 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after " 8395 "forced leave"); 8396 nl80211_leave_ibss(drv); 8397 nlmsg_free(msg); 8398 goto retry; 8399 } 8400 8401 goto nla_put_failure; 8402 } 8403 ret = 0; 8404 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully"); 8405 8406nla_put_failure: 8407 nlmsg_free(msg); 8408 return ret; 8409} 8410 8411 8412static int nl80211_connect_common(struct wpa_driver_nl80211_data *drv, 8413 struct wpa_driver_associate_params *params, 8414 struct nl_msg *msg) 8415{ 8416 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8417 8418 if (params->bssid) { 8419 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 8420 MAC2STR(params->bssid)); 8421 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 8422 } 8423 8424 if (params->bssid_hint) { 8425 wpa_printf(MSG_DEBUG, " * bssid_hint=" MACSTR, 8426 MAC2STR(params->bssid_hint)); 8427 NLA_PUT(msg, NL80211_ATTR_MAC_HINT, ETH_ALEN, 8428 params->bssid_hint); 8429 } 8430 8431 if (params->freq) { 8432 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 8433 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 8434 drv->assoc_freq = params->freq; 8435 } else 8436 drv->assoc_freq = 0; 8437 8438 if (params->freq_hint) { 8439 wpa_printf(MSG_DEBUG, " * freq_hint=%d", params->freq_hint); 8440 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ_HINT, 8441 params->freq_hint); 8442 } 8443 8444 if (params->bg_scan_period >= 0) { 8445 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 8446 params->bg_scan_period); 8447 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 8448 params->bg_scan_period); 8449 } 8450 8451 if (params->ssid) { 8452 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 8453 params->ssid, params->ssid_len); 8454 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 8455 params->ssid); 8456 if (params->ssid_len > sizeof(drv->ssid)) 8457 goto nla_put_failure; 8458 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 8459 drv->ssid_len = params->ssid_len; 8460 } 8461 8462 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 8463 if (params->wpa_ie) 8464 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 8465 params->wpa_ie); 8466 8467 if (params->wpa_proto) { 8468 enum nl80211_wpa_versions ver = 0; 8469 8470 if (params->wpa_proto & WPA_PROTO_WPA) 8471 ver |= NL80211_WPA_VERSION_1; 8472 if (params->wpa_proto & WPA_PROTO_RSN) 8473 ver |= NL80211_WPA_VERSION_2; 8474 8475 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver); 8476 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 8477 } 8478 8479 if (params->pairwise_suite != WPA_CIPHER_NONE) { 8480 u32 cipher = wpa_cipher_to_cipher_suite(params->pairwise_suite); 8481 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher); 8482 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); 8483 } 8484 8485 if (params->group_suite == WPA_CIPHER_GTK_NOT_USED && 8486 !(drv->capa.enc & WPA_DRIVER_CAPA_ENC_GTK_NOT_USED)) { 8487 /* 8488 * This is likely to work even though many drivers do not 8489 * advertise support for operations without GTK. 8490 */ 8491 wpa_printf(MSG_DEBUG, " * skip group cipher configuration for GTK_NOT_USED due to missing driver support advertisement"); 8492 } else if (params->group_suite != WPA_CIPHER_NONE) { 8493 u32 cipher = wpa_cipher_to_cipher_suite(params->group_suite); 8494 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher); 8495 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); 8496 } 8497 8498 if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X || 8499 params->key_mgmt_suite == WPA_KEY_MGMT_PSK || 8500 params->key_mgmt_suite == WPA_KEY_MGMT_FT_IEEE8021X || 8501 params->key_mgmt_suite == WPA_KEY_MGMT_FT_PSK || 8502 params->key_mgmt_suite == WPA_KEY_MGMT_CCKM) { 8503 int mgmt = WLAN_AKM_SUITE_PSK; 8504 8505 switch (params->key_mgmt_suite) { 8506 case WPA_KEY_MGMT_CCKM: 8507 mgmt = WLAN_AKM_SUITE_CCKM; 8508 break; 8509 case WPA_KEY_MGMT_IEEE8021X: 8510 mgmt = WLAN_AKM_SUITE_8021X; 8511 break; 8512 case WPA_KEY_MGMT_FT_IEEE8021X: 8513 mgmt = WLAN_AKM_SUITE_FT_8021X; 8514 break; 8515 case WPA_KEY_MGMT_FT_PSK: 8516 mgmt = WLAN_AKM_SUITE_FT_PSK; 8517 break; 8518 case WPA_KEY_MGMT_PSK: 8519 default: 8520 mgmt = WLAN_AKM_SUITE_PSK; 8521 break; 8522 } 8523 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt); 8524 } 8525 8526 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 8527 8528 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) 8529 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); 8530 8531 if (params->disable_ht) 8532 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); 8533 8534 if (params->htcaps && params->htcaps_mask) { 8535 int sz = sizeof(struct ieee80211_ht_capabilities); 8536 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); 8537 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 8538 params->htcaps_mask); 8539 } 8540 8541#ifdef CONFIG_VHT_OVERRIDES 8542 if (params->disable_vht) { 8543 wpa_printf(MSG_DEBUG, " * VHT disabled"); 8544 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT); 8545 } 8546 8547 if (params->vhtcaps && params->vhtcaps_mask) { 8548 int sz = sizeof(struct ieee80211_vht_capabilities); 8549 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps); 8550 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 8551 params->vhtcaps_mask); 8552 } 8553#endif /* CONFIG_VHT_OVERRIDES */ 8554 8555 if (params->p2p) 8556 wpa_printf(MSG_DEBUG, " * P2P group"); 8557 8558 return 0; 8559nla_put_failure: 8560 return -1; 8561} 8562 8563 8564static int wpa_driver_nl80211_try_connect( 8565 struct wpa_driver_nl80211_data *drv, 8566 struct wpa_driver_associate_params *params) 8567{ 8568 struct nl_msg *msg; 8569 enum nl80211_auth_type type; 8570 int ret; 8571 int algs; 8572 8573 msg = nlmsg_alloc(); 8574 if (!msg) 8575 return -1; 8576 8577 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex); 8578 nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT); 8579 8580 ret = nl80211_connect_common(drv, params, msg); 8581 if (ret) 8582 goto nla_put_failure; 8583 8584 algs = 0; 8585 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 8586 algs++; 8587 if (params->auth_alg & WPA_AUTH_ALG_SHARED) 8588 algs++; 8589 if (params->auth_alg & WPA_AUTH_ALG_LEAP) 8590 algs++; 8591 if (algs > 1) { 8592 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic " 8593 "selection"); 8594 goto skip_auth_type; 8595 } 8596 8597 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 8598 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 8599 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 8600 type = NL80211_AUTHTYPE_SHARED_KEY; 8601 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 8602 type = NL80211_AUTHTYPE_NETWORK_EAP; 8603 else if (params->auth_alg & WPA_AUTH_ALG_FT) 8604 type = NL80211_AUTHTYPE_FT; 8605 else 8606 goto nla_put_failure; 8607 8608 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 8609 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 8610 8611skip_auth_type: 8612 ret = nl80211_set_conn_keys(params, msg); 8613 if (ret) 8614 goto nla_put_failure; 8615 8616 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8617 msg = NULL; 8618 if (ret) { 8619 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d " 8620 "(%s)", ret, strerror(-ret)); 8621 goto nla_put_failure; 8622 } 8623 ret = 0; 8624 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully"); 8625 8626nla_put_failure: 8627 nlmsg_free(msg); 8628 return ret; 8629 8630} 8631 8632 8633static int wpa_driver_nl80211_connect( 8634 struct wpa_driver_nl80211_data *drv, 8635 struct wpa_driver_associate_params *params) 8636{ 8637 int ret = wpa_driver_nl80211_try_connect(drv, params); 8638 if (ret == -EALREADY) { 8639 /* 8640 * cfg80211 does not currently accept new connections if 8641 * we are already connected. As a workaround, force 8642 * disconnection and try again. 8643 */ 8644 wpa_printf(MSG_DEBUG, "nl80211: Explicitly " 8645 "disconnecting before reassociation " 8646 "attempt"); 8647 if (wpa_driver_nl80211_disconnect( 8648 drv, WLAN_REASON_PREV_AUTH_NOT_VALID)) 8649 return -1; 8650 ret = wpa_driver_nl80211_try_connect(drv, params); 8651 } 8652 return ret; 8653} 8654 8655 8656static int wpa_driver_nl80211_associate( 8657 void *priv, struct wpa_driver_associate_params *params) 8658{ 8659 struct i802_bss *bss = priv; 8660 struct wpa_driver_nl80211_data *drv = bss->drv; 8661 int ret; 8662 struct nl_msg *msg; 8663 8664 if (params->mode == IEEE80211_MODE_AP) 8665 return wpa_driver_nl80211_ap(drv, params); 8666 8667 if (params->mode == IEEE80211_MODE_IBSS) 8668 return wpa_driver_nl80211_ibss(drv, params); 8669 8670 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) { 8671 enum nl80211_iftype nlmode = params->p2p ? 8672 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 8673 8674 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0) 8675 return -1; 8676 return wpa_driver_nl80211_connect(drv, params); 8677 } 8678 8679 nl80211_mark_disconnected(drv); 8680 8681 msg = nlmsg_alloc(); 8682 if (!msg) 8683 return -1; 8684 8685 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)", 8686 drv->ifindex); 8687 nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE); 8688 8689 ret = nl80211_connect_common(drv, params, msg); 8690 if (ret) 8691 goto nla_put_failure; 8692 8693 if (params->prev_bssid) { 8694 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR, 8695 MAC2STR(params->prev_bssid)); 8696 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN, 8697 params->prev_bssid); 8698 } 8699 8700 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8701 msg = NULL; 8702 if (ret) { 8703 wpa_dbg(drv->ctx, MSG_DEBUG, 8704 "nl80211: MLME command failed (assoc): ret=%d (%s)", 8705 ret, strerror(-ret)); 8706 nl80211_dump_scan(drv); 8707 goto nla_put_failure; 8708 } 8709 ret = 0; 8710 wpa_printf(MSG_DEBUG, "nl80211: Association request send " 8711 "successfully"); 8712 8713nla_put_failure: 8714 nlmsg_free(msg); 8715 return ret; 8716} 8717 8718 8719static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv, 8720 int ifindex, enum nl80211_iftype mode) 8721{ 8722 struct nl_msg *msg; 8723 int ret = -ENOBUFS; 8724 8725 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)", 8726 ifindex, mode, nl80211_iftype_str(mode)); 8727 8728 msg = nlmsg_alloc(); 8729 if (!msg) 8730 return -ENOMEM; 8731 8732 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE); 8733 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 8734 goto nla_put_failure; 8735 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode); 8736 8737 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8738 msg = NULL; 8739 if (!ret) 8740 return 0; 8741nla_put_failure: 8742 nlmsg_free(msg); 8743 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:" 8744 " %d (%s)", ifindex, mode, ret, strerror(-ret)); 8745 return ret; 8746} 8747 8748 8749static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 8750 enum nl80211_iftype nlmode) 8751{ 8752 struct wpa_driver_nl80211_data *drv = bss->drv; 8753 int ret = -1; 8754 int i; 8755 int was_ap = is_ap_interface(drv->nlmode); 8756 int res; 8757 8758 res = nl80211_set_mode(drv, drv->ifindex, nlmode); 8759 if (res && nlmode == nl80211_get_ifmode(bss)) 8760 res = 0; 8761 8762 if (res == 0) { 8763 drv->nlmode = nlmode; 8764 ret = 0; 8765 goto done; 8766 } 8767 8768 if (res == -ENODEV) 8769 return -1; 8770 8771 if (nlmode == drv->nlmode) { 8772 wpa_printf(MSG_DEBUG, "nl80211: Interface already in " 8773 "requested mode - ignore error"); 8774 ret = 0; 8775 goto done; /* Already in the requested mode */ 8776 } 8777 8778 /* mac80211 doesn't allow mode changes while the device is up, so 8779 * take the device down, try to set the mode again, and bring the 8780 * device back up. 8781 */ 8782 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting " 8783 "interface down"); 8784 for (i = 0; i < 10; i++) { 8785 res = i802_set_iface_flags(bss, 0); 8786 if (res == -EACCES || res == -ENODEV) 8787 break; 8788 if (res == 0) { 8789 /* Try to set the mode again while the interface is 8790 * down */ 8791 ret = nl80211_set_mode(drv, drv->ifindex, nlmode); 8792 if (ret == -EACCES) 8793 break; 8794 res = i802_set_iface_flags(bss, 1); 8795 if (res && !ret) 8796 ret = -1; 8797 else if (ret != -EBUSY) 8798 break; 8799 } else 8800 wpa_printf(MSG_DEBUG, "nl80211: Failed to set " 8801 "interface down"); 8802 os_sleep(0, 100000); 8803 } 8804 8805 if (!ret) { 8806 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while " 8807 "interface is down"); 8808 drv->nlmode = nlmode; 8809 drv->ignore_if_down_event = 1; 8810 } 8811 8812done: 8813 if (ret) { 8814 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d " 8815 "from %d failed", nlmode, drv->nlmode); 8816 return ret; 8817 } 8818 8819 if (is_p2p_net_interface(nlmode)) 8820 nl80211_disable_11b_rates(drv, drv->ifindex, 1); 8821 else if (drv->disabled_11b_rates) 8822 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 8823 8824 if (is_ap_interface(nlmode)) { 8825 nl80211_mgmt_unsubscribe(bss, "start AP"); 8826 /* Setup additional AP mode functionality if needed */ 8827 if (nl80211_setup_ap(bss)) 8828 return -1; 8829 } else if (was_ap) { 8830 /* Remove additional AP mode functionality */ 8831 nl80211_teardown_ap(bss); 8832 } else { 8833 nl80211_mgmt_unsubscribe(bss, "mode change"); 8834 } 8835 8836 if (!bss->in_deinit && !is_ap_interface(nlmode) && 8837 nl80211_mgmt_subscribe_non_ap(bss) < 0) 8838 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action " 8839 "frame processing - ignore for now"); 8840 8841 return 0; 8842} 8843 8844 8845static int wpa_driver_nl80211_get_capa(void *priv, 8846 struct wpa_driver_capa *capa) 8847{ 8848 struct i802_bss *bss = priv; 8849 struct wpa_driver_nl80211_data *drv = bss->drv; 8850 if (!drv->has_capability) 8851 return -1; 8852 os_memcpy(capa, &drv->capa, sizeof(*capa)); 8853 if (drv->extended_capa && drv->extended_capa_mask) { 8854 capa->extended_capa = drv->extended_capa; 8855 capa->extended_capa_mask = drv->extended_capa_mask; 8856 capa->extended_capa_len = drv->extended_capa_len; 8857 } 8858 8859 if ((capa->flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) && 8860 !drv->allow_p2p_device) { 8861 wpa_printf(MSG_DEBUG, "nl80211: Do not indicate P2P_DEVICE support (p2p_device=1 driver param not specified)"); 8862 capa->flags &= ~WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 8863 } 8864 8865 return 0; 8866} 8867 8868 8869static int wpa_driver_nl80211_set_operstate(void *priv, int state) 8870{ 8871 struct i802_bss *bss = priv; 8872 struct wpa_driver_nl80211_data *drv = bss->drv; 8873 8874 wpa_printf(MSG_DEBUG, "nl80211: Set %s operstate %d->%d (%s)", 8875 bss->ifname, drv->operstate, state, 8876 state ? "UP" : "DORMANT"); 8877 drv->operstate = state; 8878 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1, 8879 state ? IF_OPER_UP : IF_OPER_DORMANT); 8880} 8881 8882 8883static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized) 8884{ 8885 struct i802_bss *bss = priv; 8886 struct wpa_driver_nl80211_data *drv = bss->drv; 8887 struct nl_msg *msg; 8888 struct nl80211_sta_flag_update upd; 8889 int ret = -ENOBUFS; 8890 8891 if (!drv->associated && is_zero_ether_addr(drv->bssid) && !authorized) { 8892 wpa_printf(MSG_DEBUG, "nl80211: Skip set_supp_port(unauthorized) while not associated"); 8893 return 0; 8894 } 8895 8896 wpa_printf(MSG_DEBUG, "nl80211: Set supplicant port %sauthorized for " 8897 MACSTR, authorized ? "" : "un", MAC2STR(drv->bssid)); 8898 8899 msg = nlmsg_alloc(); 8900 if (!msg) 8901 return -ENOMEM; 8902 8903 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8904 8905 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8906 if_nametoindex(bss->ifname)); 8907 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 8908 8909 os_memset(&upd, 0, sizeof(upd)); 8910 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED); 8911 if (authorized) 8912 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED); 8913 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 8914 8915 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8916 msg = NULL; 8917 if (!ret) 8918 return 0; 8919 nla_put_failure: 8920 nlmsg_free(msg); 8921 wpa_printf(MSG_DEBUG, "nl80211: Failed to set STA flag: %d (%s)", 8922 ret, strerror(-ret)); 8923 return ret; 8924} 8925 8926 8927/* Set kernel driver on given frequency (MHz) */ 8928static int i802_set_freq(void *priv, struct hostapd_freq_params *freq) 8929{ 8930 struct i802_bss *bss = priv; 8931 return wpa_driver_nl80211_set_freq(bss, freq); 8932} 8933 8934 8935static inline int min_int(int a, int b) 8936{ 8937 if (a < b) 8938 return a; 8939 return b; 8940} 8941 8942 8943static int get_key_handler(struct nl_msg *msg, void *arg) 8944{ 8945 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 8946 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 8947 8948 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 8949 genlmsg_attrlen(gnlh, 0), NULL); 8950 8951 /* 8952 * TODO: validate the key index and mac address! 8953 * Otherwise, there's a race condition as soon as 8954 * the kernel starts sending key notifications. 8955 */ 8956 8957 if (tb[NL80211_ATTR_KEY_SEQ]) 8958 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]), 8959 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6)); 8960 return NL_SKIP; 8961} 8962 8963 8964static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr, 8965 int idx, u8 *seq) 8966{ 8967 struct i802_bss *bss = priv; 8968 struct wpa_driver_nl80211_data *drv = bss->drv; 8969 struct nl_msg *msg; 8970 8971 msg = nlmsg_alloc(); 8972 if (!msg) 8973 return -ENOMEM; 8974 8975 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY); 8976 8977 if (addr) 8978 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8979 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx); 8980 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface)); 8981 8982 memset(seq, 0, 6); 8983 8984 return send_and_recv_msgs(drv, msg, get_key_handler, seq); 8985 nla_put_failure: 8986 nlmsg_free(msg); 8987 return -ENOBUFS; 8988} 8989 8990 8991static int i802_set_rts(void *priv, int rts) 8992{ 8993 struct i802_bss *bss = priv; 8994 struct wpa_driver_nl80211_data *drv = bss->drv; 8995 struct nl_msg *msg; 8996 int ret = -ENOBUFS; 8997 u32 val; 8998 8999 msg = nlmsg_alloc(); 9000 if (!msg) 9001 return -ENOMEM; 9002 9003 if (rts >= 2347) 9004 val = (u32) -1; 9005 else 9006 val = rts; 9007 9008 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 9009 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9010 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val); 9011 9012 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9013 msg = NULL; 9014 if (!ret) 9015 return 0; 9016nla_put_failure: 9017 nlmsg_free(msg); 9018 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: " 9019 "%d (%s)", rts, ret, strerror(-ret)); 9020 return ret; 9021} 9022 9023 9024static int i802_set_frag(void *priv, int frag) 9025{ 9026 struct i802_bss *bss = priv; 9027 struct wpa_driver_nl80211_data *drv = bss->drv; 9028 struct nl_msg *msg; 9029 int ret = -ENOBUFS; 9030 u32 val; 9031 9032 msg = nlmsg_alloc(); 9033 if (!msg) 9034 return -ENOMEM; 9035 9036 if (frag >= 2346) 9037 val = (u32) -1; 9038 else 9039 val = frag; 9040 9041 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 9042 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9043 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val); 9044 9045 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9046 msg = NULL; 9047 if (!ret) 9048 return 0; 9049nla_put_failure: 9050 nlmsg_free(msg); 9051 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold " 9052 "%d: %d (%s)", frag, ret, strerror(-ret)); 9053 return ret; 9054} 9055 9056 9057static int i802_flush(void *priv) 9058{ 9059 struct i802_bss *bss = priv; 9060 struct wpa_driver_nl80211_data *drv = bss->drv; 9061 struct nl_msg *msg; 9062 int res; 9063 9064 msg = nlmsg_alloc(); 9065 if (!msg) 9066 return -1; 9067 9068 wpa_printf(MSG_DEBUG, "nl80211: flush -> DEL_STATION %s (all)", 9069 bss->ifname); 9070 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 9071 9072 /* 9073 * XXX: FIX! this needs to flush all VLANs too 9074 */ 9075 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 9076 if_nametoindex(bss->ifname)); 9077 9078 res = send_and_recv_msgs(drv, msg, NULL, NULL); 9079 if (res) { 9080 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d " 9081 "(%s)", res, strerror(-res)); 9082 } 9083 return res; 9084 nla_put_failure: 9085 nlmsg_free(msg); 9086 return -ENOBUFS; 9087} 9088 9089 9090static int get_sta_handler(struct nl_msg *msg, void *arg) 9091{ 9092 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9093 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9094 struct hostap_sta_driver_data *data = arg; 9095 struct nlattr *stats[NL80211_STA_INFO_MAX + 1]; 9096 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = { 9097 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 }, 9098 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 }, 9099 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 }, 9100 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 }, 9101 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 }, 9102 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 }, 9103 }; 9104 9105 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9106 genlmsg_attrlen(gnlh, 0), NULL); 9107 9108 /* 9109 * TODO: validate the interface and mac address! 9110 * Otherwise, there's a race condition as soon as 9111 * the kernel starts sending station notifications. 9112 */ 9113 9114 if (!tb[NL80211_ATTR_STA_INFO]) { 9115 wpa_printf(MSG_DEBUG, "sta stats missing!"); 9116 return NL_SKIP; 9117 } 9118 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX, 9119 tb[NL80211_ATTR_STA_INFO], 9120 stats_policy)) { 9121 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!"); 9122 return NL_SKIP; 9123 } 9124 9125 if (stats[NL80211_STA_INFO_INACTIVE_TIME]) 9126 data->inactive_msec = 9127 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]); 9128 if (stats[NL80211_STA_INFO_RX_BYTES]) 9129 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]); 9130 if (stats[NL80211_STA_INFO_TX_BYTES]) 9131 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]); 9132 if (stats[NL80211_STA_INFO_RX_PACKETS]) 9133 data->rx_packets = 9134 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]); 9135 if (stats[NL80211_STA_INFO_TX_PACKETS]) 9136 data->tx_packets = 9137 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]); 9138 if (stats[NL80211_STA_INFO_TX_FAILED]) 9139 data->tx_retry_failed = 9140 nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]); 9141 9142 return NL_SKIP; 9143} 9144 9145static int i802_read_sta_data(struct i802_bss *bss, 9146 struct hostap_sta_driver_data *data, 9147 const u8 *addr) 9148{ 9149 struct wpa_driver_nl80211_data *drv = bss->drv; 9150 struct nl_msg *msg; 9151 9152 os_memset(data, 0, sizeof(*data)); 9153 msg = nlmsg_alloc(); 9154 if (!msg) 9155 return -ENOMEM; 9156 9157 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 9158 9159 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 9160 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 9161 9162 return send_and_recv_msgs(drv, msg, get_sta_handler, data); 9163 nla_put_failure: 9164 nlmsg_free(msg); 9165 return -ENOBUFS; 9166} 9167 9168 9169static int i802_set_tx_queue_params(void *priv, int queue, int aifs, 9170 int cw_min, int cw_max, int burst_time) 9171{ 9172 struct i802_bss *bss = priv; 9173 struct wpa_driver_nl80211_data *drv = bss->drv; 9174 struct nl_msg *msg; 9175 struct nlattr *txq, *params; 9176 9177 msg = nlmsg_alloc(); 9178 if (!msg) 9179 return -1; 9180 9181 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 9182 9183 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 9184 9185 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS); 9186 if (!txq) 9187 goto nla_put_failure; 9188 9189 /* We are only sending parameters for a single TXQ at a time */ 9190 params = nla_nest_start(msg, 1); 9191 if (!params) 9192 goto nla_put_failure; 9193 9194 switch (queue) { 9195 case 0: 9196 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO); 9197 break; 9198 case 1: 9199 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI); 9200 break; 9201 case 2: 9202 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE); 9203 break; 9204 case 3: 9205 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK); 9206 break; 9207 } 9208 /* Burst time is configured in units of 0.1 msec and TXOP parameter in 9209 * 32 usec, so need to convert the value here. */ 9210 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32); 9211 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min); 9212 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max); 9213 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs); 9214 9215 nla_nest_end(msg, params); 9216 9217 nla_nest_end(msg, txq); 9218 9219 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 9220 return 0; 9221 msg = NULL; 9222 nla_put_failure: 9223 nlmsg_free(msg); 9224 return -1; 9225} 9226 9227 9228static int i802_set_sta_vlan(struct i802_bss *bss, const u8 *addr, 9229 const char *ifname, int vlan_id) 9230{ 9231 struct wpa_driver_nl80211_data *drv = bss->drv; 9232 struct nl_msg *msg; 9233 int ret = -ENOBUFS; 9234 9235 msg = nlmsg_alloc(); 9236 if (!msg) 9237 return -ENOMEM; 9238 9239 wpa_printf(MSG_DEBUG, "nl80211: %s[%d]: set_sta_vlan(" MACSTR 9240 ", ifname=%s[%d], vlan_id=%d)", 9241 bss->ifname, if_nametoindex(bss->ifname), 9242 MAC2STR(addr), ifname, if_nametoindex(ifname), vlan_id); 9243 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 9244 9245 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 9246 if_nametoindex(bss->ifname)); 9247 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 9248 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN, 9249 if_nametoindex(ifname)); 9250 9251 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9252 msg = NULL; 9253 if (ret < 0) { 9254 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr=" 9255 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)", 9256 MAC2STR(addr), ifname, vlan_id, ret, 9257 strerror(-ret)); 9258 } 9259 nla_put_failure: 9260 nlmsg_free(msg); 9261 return ret; 9262} 9263 9264 9265static int i802_get_inact_sec(void *priv, const u8 *addr) 9266{ 9267 struct hostap_sta_driver_data data; 9268 int ret; 9269 9270 data.inactive_msec = (unsigned long) -1; 9271 ret = i802_read_sta_data(priv, &data, addr); 9272 if (ret || data.inactive_msec == (unsigned long) -1) 9273 return -1; 9274 return data.inactive_msec / 1000; 9275} 9276 9277 9278static int i802_sta_clear_stats(void *priv, const u8 *addr) 9279{ 9280#if 0 9281 /* TODO */ 9282#endif 9283 return 0; 9284} 9285 9286 9287static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, 9288 int reason) 9289{ 9290 struct i802_bss *bss = priv; 9291 struct wpa_driver_nl80211_data *drv = bss->drv; 9292 struct ieee80211_mgmt mgmt; 9293 9294 if (drv->device_ap_sme) 9295 return wpa_driver_nl80211_sta_remove(bss, addr); 9296 9297 memset(&mgmt, 0, sizeof(mgmt)); 9298 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 9299 WLAN_FC_STYPE_DEAUTH); 9300 memcpy(mgmt.da, addr, ETH_ALEN); 9301 memcpy(mgmt.sa, own_addr, ETH_ALEN); 9302 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 9303 mgmt.u.deauth.reason_code = host_to_le16(reason); 9304 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 9305 IEEE80211_HDRLEN + 9306 sizeof(mgmt.u.deauth), 0, 0, 0, 0, 9307 0); 9308} 9309 9310 9311static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr, 9312 int reason) 9313{ 9314 struct i802_bss *bss = priv; 9315 struct wpa_driver_nl80211_data *drv = bss->drv; 9316 struct ieee80211_mgmt mgmt; 9317 9318 if (drv->device_ap_sme) 9319 return wpa_driver_nl80211_sta_remove(bss, addr); 9320 9321 memset(&mgmt, 0, sizeof(mgmt)); 9322 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 9323 WLAN_FC_STYPE_DISASSOC); 9324 memcpy(mgmt.da, addr, ETH_ALEN); 9325 memcpy(mgmt.sa, own_addr, ETH_ALEN); 9326 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 9327 mgmt.u.disassoc.reason_code = host_to_le16(reason); 9328 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 9329 IEEE80211_HDRLEN + 9330 sizeof(mgmt.u.disassoc), 0, 0, 0, 0, 9331 0); 9332} 9333 9334 9335static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 9336{ 9337 int i; 9338 int *old; 9339 9340 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d", 9341 ifidx); 9342 for (i = 0; i < drv->num_if_indices; i++) { 9343 if (drv->if_indices[i] == 0) { 9344 drv->if_indices[i] = ifidx; 9345 return; 9346 } 9347 } 9348 9349 if (drv->if_indices != drv->default_if_indices) 9350 old = drv->if_indices; 9351 else 9352 old = NULL; 9353 9354 drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1, 9355 sizeof(int)); 9356 if (!drv->if_indices) { 9357 if (!old) 9358 drv->if_indices = drv->default_if_indices; 9359 else 9360 drv->if_indices = old; 9361 wpa_printf(MSG_ERROR, "Failed to reallocate memory for " 9362 "interfaces"); 9363 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx); 9364 return; 9365 } else if (!old) 9366 os_memcpy(drv->if_indices, drv->default_if_indices, 9367 sizeof(drv->default_if_indices)); 9368 drv->if_indices[drv->num_if_indices] = ifidx; 9369 drv->num_if_indices++; 9370} 9371 9372 9373static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 9374{ 9375 int i; 9376 9377 for (i = 0; i < drv->num_if_indices; i++) { 9378 if (drv->if_indices[i] == ifidx) { 9379 drv->if_indices[i] = 0; 9380 break; 9381 } 9382 } 9383} 9384 9385 9386static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 9387{ 9388 int i; 9389 9390 for (i = 0; i < drv->num_if_indices; i++) 9391 if (drv->if_indices[i] == ifidx) 9392 return 1; 9393 9394 return 0; 9395} 9396 9397 9398static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val, 9399 const char *bridge_ifname, char *ifname_wds) 9400{ 9401 struct i802_bss *bss = priv; 9402 struct wpa_driver_nl80211_data *drv = bss->drv; 9403 char name[IFNAMSIZ + 1]; 9404 9405 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid); 9406 if (ifname_wds) 9407 os_strlcpy(ifname_wds, name, IFNAMSIZ + 1); 9408 9409 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR 9410 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name); 9411 if (val) { 9412 if (!if_nametoindex(name)) { 9413 if (nl80211_create_iface(drv, name, 9414 NL80211_IFTYPE_AP_VLAN, 9415 bss->addr, 1, NULL, NULL, 0) < 9416 0) 9417 return -1; 9418 if (bridge_ifname && 9419 linux_br_add_if(drv->global->ioctl_sock, 9420 bridge_ifname, name) < 0) 9421 return -1; 9422 } 9423 if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) { 9424 wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA " 9425 "interface %s up", name); 9426 } 9427 return i802_set_sta_vlan(priv, addr, name, 0); 9428 } else { 9429 if (bridge_ifname) 9430 linux_br_del_if(drv->global->ioctl_sock, bridge_ifname, 9431 name); 9432 9433 i802_set_sta_vlan(priv, addr, bss->ifname, 0); 9434 return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN, 9435 name); 9436 } 9437} 9438 9439 9440static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx) 9441{ 9442 struct wpa_driver_nl80211_data *drv = eloop_ctx; 9443 struct sockaddr_ll lladdr; 9444 unsigned char buf[3000]; 9445 int len; 9446 socklen_t fromlen = sizeof(lladdr); 9447 9448 len = recvfrom(sock, buf, sizeof(buf), 0, 9449 (struct sockaddr *)&lladdr, &fromlen); 9450 if (len < 0) { 9451 wpa_printf(MSG_ERROR, "nl80211: EAPOL recv failed: %s", 9452 strerror(errno)); 9453 return; 9454 } 9455 9456 if (have_ifidx(drv, lladdr.sll_ifindex)) 9457 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len); 9458} 9459 9460 9461static int i802_check_bridge(struct wpa_driver_nl80211_data *drv, 9462 struct i802_bss *bss, 9463 const char *brname, const char *ifname) 9464{ 9465 int ifindex; 9466 char in_br[IFNAMSIZ]; 9467 9468 os_strlcpy(bss->brname, brname, IFNAMSIZ); 9469 ifindex = if_nametoindex(brname); 9470 if (ifindex == 0) { 9471 /* 9472 * Bridge was configured, but the bridge device does 9473 * not exist. Try to add it now. 9474 */ 9475 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) { 9476 wpa_printf(MSG_ERROR, "nl80211: Failed to add the " 9477 "bridge interface %s: %s", 9478 brname, strerror(errno)); 9479 return -1; 9480 } 9481 bss->added_bridge = 1; 9482 add_ifidx(drv, if_nametoindex(brname)); 9483 } 9484 9485 if (linux_br_get(in_br, ifname) == 0) { 9486 if (os_strcmp(in_br, brname) == 0) 9487 return 0; /* already in the bridge */ 9488 9489 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from " 9490 "bridge %s", ifname, in_br); 9491 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) < 9492 0) { 9493 wpa_printf(MSG_ERROR, "nl80211: Failed to " 9494 "remove interface %s from bridge " 9495 "%s: %s", 9496 ifname, brname, strerror(errno)); 9497 return -1; 9498 } 9499 } 9500 9501 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s", 9502 ifname, brname); 9503 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) { 9504 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s " 9505 "into bridge %s: %s", 9506 ifname, brname, strerror(errno)); 9507 return -1; 9508 } 9509 bss->added_if_into_bridge = 1; 9510 9511 return 0; 9512} 9513 9514 9515static void *i802_init(struct hostapd_data *hapd, 9516 struct wpa_init_params *params) 9517{ 9518 struct wpa_driver_nl80211_data *drv; 9519 struct i802_bss *bss; 9520 size_t i; 9521 char brname[IFNAMSIZ]; 9522 int ifindex, br_ifindex; 9523 int br_added = 0; 9524 9525 bss = wpa_driver_nl80211_drv_init(hapd, params->ifname, 9526 params->global_priv, 1, 9527 params->bssid); 9528 if (bss == NULL) 9529 return NULL; 9530 9531 drv = bss->drv; 9532 9533 if (linux_br_get(brname, params->ifname) == 0) { 9534 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s", 9535 params->ifname, brname); 9536 br_ifindex = if_nametoindex(brname); 9537 } else { 9538 brname[0] = '\0'; 9539 br_ifindex = 0; 9540 } 9541 9542 for (i = 0; i < params->num_bridge; i++) { 9543 if (params->bridge[i]) { 9544 ifindex = if_nametoindex(params->bridge[i]); 9545 if (ifindex) 9546 add_ifidx(drv, ifindex); 9547 if (ifindex == br_ifindex) 9548 br_added = 1; 9549 } 9550 } 9551 if (!br_added && br_ifindex && 9552 (params->num_bridge == 0 || !params->bridge[0])) 9553 add_ifidx(drv, br_ifindex); 9554 9555 /* start listening for EAPOL on the default AP interface */ 9556 add_ifidx(drv, drv->ifindex); 9557 9558 if (params->num_bridge && params->bridge[0] && 9559 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0) 9560 goto failed; 9561 9562 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE)); 9563 if (drv->eapol_sock < 0) { 9564 wpa_printf(MSG_ERROR, "nl80211: socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE) failed: %s", 9565 strerror(errno)); 9566 goto failed; 9567 } 9568 9569 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL)) 9570 { 9571 wpa_printf(MSG_INFO, "nl80211: Could not register read socket for eapol"); 9572 goto failed; 9573 } 9574 9575 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 9576 params->own_addr)) 9577 goto failed; 9578 9579 memcpy(bss->addr, params->own_addr, ETH_ALEN); 9580 9581 return bss; 9582 9583failed: 9584 wpa_driver_nl80211_deinit(bss); 9585 return NULL; 9586} 9587 9588 9589static void i802_deinit(void *priv) 9590{ 9591 struct i802_bss *bss = priv; 9592 wpa_driver_nl80211_deinit(bss); 9593} 9594 9595 9596static enum nl80211_iftype wpa_driver_nl80211_if_type( 9597 enum wpa_driver_if_type type) 9598{ 9599 switch (type) { 9600 case WPA_IF_STATION: 9601 return NL80211_IFTYPE_STATION; 9602 case WPA_IF_P2P_CLIENT: 9603 case WPA_IF_P2P_GROUP: 9604 return NL80211_IFTYPE_P2P_CLIENT; 9605 case WPA_IF_AP_VLAN: 9606 return NL80211_IFTYPE_AP_VLAN; 9607 case WPA_IF_AP_BSS: 9608 return NL80211_IFTYPE_AP; 9609 case WPA_IF_P2P_GO: 9610 return NL80211_IFTYPE_P2P_GO; 9611 case WPA_IF_P2P_DEVICE: 9612 return NL80211_IFTYPE_P2P_DEVICE; 9613 } 9614 return -1; 9615} 9616 9617 9618#ifdef CONFIG_P2P 9619 9620static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr) 9621{ 9622 struct wpa_driver_nl80211_data *drv; 9623 dl_list_for_each(drv, &global->interfaces, 9624 struct wpa_driver_nl80211_data, list) { 9625 if (os_memcmp(addr, drv->first_bss->addr, ETH_ALEN) == 0) 9626 return 1; 9627 } 9628 return 0; 9629} 9630 9631 9632static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv, 9633 u8 *new_addr) 9634{ 9635 unsigned int idx; 9636 9637 if (!drv->global) 9638 return -1; 9639 9640 os_memcpy(new_addr, drv->first_bss->addr, ETH_ALEN); 9641 for (idx = 0; idx < 64; idx++) { 9642 new_addr[0] = drv->first_bss->addr[0] | 0x02; 9643 new_addr[0] ^= idx << 2; 9644 if (!nl80211_addr_in_use(drv->global, new_addr)) 9645 break; 9646 } 9647 if (idx == 64) 9648 return -1; 9649 9650 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address " 9651 MACSTR, MAC2STR(new_addr)); 9652 9653 return 0; 9654} 9655 9656#endif /* CONFIG_P2P */ 9657 9658 9659struct wdev_info { 9660 u64 wdev_id; 9661 int wdev_id_set; 9662 u8 macaddr[ETH_ALEN]; 9663}; 9664 9665static int nl80211_wdev_handler(struct nl_msg *msg, void *arg) 9666{ 9667 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9668 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9669 struct wdev_info *wi = arg; 9670 9671 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9672 genlmsg_attrlen(gnlh, 0), NULL); 9673 if (tb[NL80211_ATTR_WDEV]) { 9674 wi->wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 9675 wi->wdev_id_set = 1; 9676 } 9677 9678 if (tb[NL80211_ATTR_MAC]) 9679 os_memcpy(wi->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 9680 ETH_ALEN); 9681 9682 return NL_SKIP; 9683} 9684 9685 9686static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type, 9687 const char *ifname, const u8 *addr, 9688 void *bss_ctx, void **drv_priv, 9689 char *force_ifname, u8 *if_addr, 9690 const char *bridge, int use_existing) 9691{ 9692 enum nl80211_iftype nlmode; 9693 struct i802_bss *bss = priv; 9694 struct wpa_driver_nl80211_data *drv = bss->drv; 9695 int ifidx; 9696 int added = 1; 9697 9698 if (addr) 9699 os_memcpy(if_addr, addr, ETH_ALEN); 9700 nlmode = wpa_driver_nl80211_if_type(type); 9701 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { 9702 struct wdev_info p2pdev_info; 9703 9704 os_memset(&p2pdev_info, 0, sizeof(p2pdev_info)); 9705 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 9706 0, nl80211_wdev_handler, 9707 &p2pdev_info, use_existing); 9708 if (!p2pdev_info.wdev_id_set || ifidx != 0) { 9709 wpa_printf(MSG_ERROR, "nl80211: Failed to create a P2P Device interface %s", 9710 ifname); 9711 return -1; 9712 } 9713 9714 drv->global->if_add_wdevid = p2pdev_info.wdev_id; 9715 drv->global->if_add_wdevid_set = p2pdev_info.wdev_id_set; 9716 if (!is_zero_ether_addr(p2pdev_info.macaddr)) 9717 os_memcpy(if_addr, p2pdev_info.macaddr, ETH_ALEN); 9718 wpa_printf(MSG_DEBUG, "nl80211: New P2P Device interface %s (0x%llx) created", 9719 ifname, 9720 (long long unsigned int) p2pdev_info.wdev_id); 9721 } else { 9722 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 9723 0, NULL, NULL, use_existing); 9724 if (use_existing && ifidx == -ENFILE) { 9725 added = 0; 9726 ifidx = if_nametoindex(ifname); 9727 } else if (ifidx < 0) { 9728 return -1; 9729 } 9730 } 9731 9732 if (!addr) { 9733 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 9734 os_memcpy(if_addr, bss->addr, ETH_ALEN); 9735 else if (linux_get_ifhwaddr(drv->global->ioctl_sock, 9736 bss->ifname, if_addr) < 0) { 9737 if (added) 9738 nl80211_remove_iface(drv, ifidx); 9739 return -1; 9740 } 9741 } 9742 9743#ifdef CONFIG_P2P 9744 if (!addr && 9745 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP || 9746 type == WPA_IF_P2P_GO)) { 9747 /* Enforce unique P2P Interface Address */ 9748 u8 new_addr[ETH_ALEN]; 9749 9750 if (linux_get_ifhwaddr(drv->global->ioctl_sock, ifname, 9751 new_addr) < 0) { 9752 nl80211_remove_iface(drv, ifidx); 9753 return -1; 9754 } 9755 if (nl80211_addr_in_use(drv->global, new_addr)) { 9756 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address " 9757 "for P2P group interface"); 9758 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) { 9759 nl80211_remove_iface(drv, ifidx); 9760 return -1; 9761 } 9762 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 9763 new_addr) < 0) { 9764 nl80211_remove_iface(drv, ifidx); 9765 return -1; 9766 } 9767 } 9768 os_memcpy(if_addr, new_addr, ETH_ALEN); 9769 } 9770#endif /* CONFIG_P2P */ 9771 9772 if (type == WPA_IF_AP_BSS) { 9773 struct i802_bss *new_bss = os_zalloc(sizeof(*new_bss)); 9774 if (new_bss == NULL) { 9775 if (added) 9776 nl80211_remove_iface(drv, ifidx); 9777 return -1; 9778 } 9779 9780 if (bridge && 9781 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) { 9782 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new " 9783 "interface %s to a bridge %s", 9784 ifname, bridge); 9785 if (added) 9786 nl80211_remove_iface(drv, ifidx); 9787 os_free(new_bss); 9788 return -1; 9789 } 9790 9791 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1)) 9792 { 9793 nl80211_remove_iface(drv, ifidx); 9794 os_free(new_bss); 9795 return -1; 9796 } 9797 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ); 9798 os_memcpy(new_bss->addr, if_addr, ETH_ALEN); 9799 new_bss->ifindex = ifidx; 9800 new_bss->drv = drv; 9801 new_bss->next = drv->first_bss->next; 9802 new_bss->freq = drv->first_bss->freq; 9803 new_bss->ctx = bss_ctx; 9804 new_bss->added_if = added; 9805 drv->first_bss->next = new_bss; 9806 if (drv_priv) 9807 *drv_priv = new_bss; 9808 nl80211_init_bss(new_bss); 9809 9810 /* Subscribe management frames for this WPA_IF_AP_BSS */ 9811 if (nl80211_setup_ap(new_bss)) 9812 return -1; 9813 } 9814 9815 if (drv->global) 9816 drv->global->if_add_ifindex = ifidx; 9817 9818 return 0; 9819} 9820 9821 9822static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 9823 enum wpa_driver_if_type type, 9824 const char *ifname) 9825{ 9826 struct wpa_driver_nl80211_data *drv = bss->drv; 9827 int ifindex = if_nametoindex(ifname); 9828 9829 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d added_if=%d", 9830 __func__, type, ifname, ifindex, bss->added_if); 9831 if (ifindex > 0 && (bss->added_if || bss->ifindex != ifindex)) 9832 nl80211_remove_iface(drv, ifindex); 9833 9834 if (type != WPA_IF_AP_BSS) 9835 return 0; 9836 9837 if (bss->added_if_into_bridge) { 9838 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 9839 bss->ifname) < 0) 9840 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 9841 "interface %s from bridge %s: %s", 9842 bss->ifname, bss->brname, strerror(errno)); 9843 } 9844 if (bss->added_bridge) { 9845 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 9846 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 9847 "bridge %s: %s", 9848 bss->brname, strerror(errno)); 9849 } 9850 9851 if (bss != drv->first_bss) { 9852 struct i802_bss *tbss; 9853 9854 wpa_printf(MSG_DEBUG, "nl80211: Not the first BSS - remove it"); 9855 for (tbss = drv->first_bss; tbss; tbss = tbss->next) { 9856 if (tbss->next == bss) { 9857 tbss->next = bss->next; 9858 /* Unsubscribe management frames */ 9859 nl80211_teardown_ap(bss); 9860 nl80211_destroy_bss(bss); 9861 os_free(bss); 9862 bss = NULL; 9863 break; 9864 } 9865 } 9866 if (bss) 9867 wpa_printf(MSG_INFO, "nl80211: %s - could not find " 9868 "BSS %p in the list", __func__, bss); 9869 } else { 9870 wpa_printf(MSG_DEBUG, "nl80211: First BSS - reassign context"); 9871 nl80211_teardown_ap(bss); 9872 if (!bss->added_if && !drv->first_bss->next) 9873 wpa_driver_nl80211_del_beacon(drv); 9874 nl80211_destroy_bss(bss); 9875 if (!bss->added_if) 9876 i802_set_iface_flags(bss, 0); 9877 if (drv->first_bss->next) { 9878 drv->first_bss = drv->first_bss->next; 9879 drv->ctx = drv->first_bss->ctx; 9880 os_free(bss); 9881 } else { 9882 wpa_printf(MSG_DEBUG, "nl80211: No second BSS to reassign context to"); 9883 } 9884 } 9885 9886 return 0; 9887} 9888 9889 9890static int cookie_handler(struct nl_msg *msg, void *arg) 9891{ 9892 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9893 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9894 u64 *cookie = arg; 9895 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9896 genlmsg_attrlen(gnlh, 0), NULL); 9897 if (tb[NL80211_ATTR_COOKIE]) 9898 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 9899 return NL_SKIP; 9900} 9901 9902 9903static int nl80211_send_frame_cmd(struct i802_bss *bss, 9904 unsigned int freq, unsigned int wait, 9905 const u8 *buf, size_t buf_len, 9906 u64 *cookie_out, int no_cck, int no_ack, 9907 int offchanok) 9908{ 9909 struct wpa_driver_nl80211_data *drv = bss->drv; 9910 struct nl_msg *msg; 9911 u64 cookie; 9912 int ret = -1; 9913 9914 msg = nlmsg_alloc(); 9915 if (!msg) 9916 return -1; 9917 9918 wpa_printf(MSG_MSGDUMP, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d " 9919 "no_ack=%d offchanok=%d", 9920 freq, wait, no_cck, no_ack, offchanok); 9921 wpa_hexdump(MSG_MSGDUMP, "CMD_FRAME", buf, buf_len); 9922 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME); 9923 9924 if (nl80211_set_iface_id(msg, bss) < 0) 9925 goto nla_put_failure; 9926 if (freq) 9927 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 9928 if (wait) 9929 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait); 9930 if (offchanok && ((drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) || 9931 drv->test_use_roc_tx)) 9932 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK); 9933 if (no_cck) 9934 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 9935 if (no_ack) 9936 NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK); 9937 9938 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf); 9939 9940 cookie = 0; 9941 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 9942 msg = NULL; 9943 if (ret) { 9944 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d " 9945 "(%s) (freq=%u wait=%u)", ret, strerror(-ret), 9946 freq, wait); 9947 goto nla_put_failure; 9948 } 9949 wpa_printf(MSG_MSGDUMP, "nl80211: Frame TX command accepted%s; " 9950 "cookie 0x%llx", no_ack ? " (no ACK)" : "", 9951 (long long unsigned int) cookie); 9952 9953 if (cookie_out) 9954 *cookie_out = no_ack ? (u64) -1 : cookie; 9955 9956nla_put_failure: 9957 nlmsg_free(msg); 9958 return ret; 9959} 9960 9961 9962static int wpa_driver_nl80211_send_action(struct i802_bss *bss, 9963 unsigned int freq, 9964 unsigned int wait_time, 9965 const u8 *dst, const u8 *src, 9966 const u8 *bssid, 9967 const u8 *data, size_t data_len, 9968 int no_cck) 9969{ 9970 struct wpa_driver_nl80211_data *drv = bss->drv; 9971 int ret = -1; 9972 u8 *buf; 9973 struct ieee80211_hdr *hdr; 9974 9975 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, " 9976 "freq=%u MHz wait=%d ms no_cck=%d)", 9977 drv->ifindex, freq, wait_time, no_cck); 9978 9979 buf = os_zalloc(24 + data_len); 9980 if (buf == NULL) 9981 return ret; 9982 os_memcpy(buf + 24, data, data_len); 9983 hdr = (struct ieee80211_hdr *) buf; 9984 hdr->frame_control = 9985 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION); 9986 os_memcpy(hdr->addr1, dst, ETH_ALEN); 9987 os_memcpy(hdr->addr2, src, ETH_ALEN); 9988 os_memcpy(hdr->addr3, bssid, ETH_ALEN); 9989 9990 if (is_ap_interface(drv->nlmode) && 9991 (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) || 9992 (int) freq == bss->freq || drv->device_ap_sme || 9993 !drv->use_monitor)) 9994 ret = wpa_driver_nl80211_send_mlme(bss, buf, 24 + data_len, 9995 0, freq, no_cck, 1, 9996 wait_time); 9997 else 9998 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf, 9999 24 + data_len, 10000 &drv->send_action_cookie, 10001 no_cck, 0, 1); 10002 10003 os_free(buf); 10004 return ret; 10005} 10006 10007 10008static void wpa_driver_nl80211_send_action_cancel_wait(void *priv) 10009{ 10010 struct i802_bss *bss = priv; 10011 struct wpa_driver_nl80211_data *drv = bss->drv; 10012 struct nl_msg *msg; 10013 int ret; 10014 10015 msg = nlmsg_alloc(); 10016 if (!msg) 10017 return; 10018 10019 wpa_printf(MSG_DEBUG, "nl80211: Cancel TX frame wait: cookie=0x%llx", 10020 (long long unsigned int) drv->send_action_cookie); 10021 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL); 10022 10023 if (nl80211_set_iface_id(msg, bss) < 0) 10024 goto nla_put_failure; 10025 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie); 10026 10027 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10028 msg = NULL; 10029 if (ret) 10030 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d " 10031 "(%s)", ret, strerror(-ret)); 10032 10033 nla_put_failure: 10034 nlmsg_free(msg); 10035} 10036 10037 10038static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq, 10039 unsigned int duration) 10040{ 10041 struct i802_bss *bss = priv; 10042 struct wpa_driver_nl80211_data *drv = bss->drv; 10043 struct nl_msg *msg; 10044 int ret; 10045 u64 cookie; 10046 10047 msg = nlmsg_alloc(); 10048 if (!msg) 10049 return -1; 10050 10051 nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL); 10052 10053 if (nl80211_set_iface_id(msg, bss) < 0) 10054 goto nla_put_failure; 10055 10056 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 10057 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); 10058 10059 cookie = 0; 10060 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 10061 msg = NULL; 10062 if (ret == 0) { 10063 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie " 10064 "0x%llx for freq=%u MHz duration=%u", 10065 (long long unsigned int) cookie, freq, duration); 10066 drv->remain_on_chan_cookie = cookie; 10067 drv->pending_remain_on_chan = 1; 10068 return 0; 10069 } 10070 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel " 10071 "(freq=%d duration=%u): %d (%s)", 10072 freq, duration, ret, strerror(-ret)); 10073nla_put_failure: 10074 nlmsg_free(msg); 10075 return -1; 10076} 10077 10078 10079static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv) 10080{ 10081 struct i802_bss *bss = priv; 10082 struct wpa_driver_nl80211_data *drv = bss->drv; 10083 struct nl_msg *msg; 10084 int ret; 10085 10086 if (!drv->pending_remain_on_chan) { 10087 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel " 10088 "to cancel"); 10089 return -1; 10090 } 10091 10092 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie " 10093 "0x%llx", 10094 (long long unsigned int) drv->remain_on_chan_cookie); 10095 10096 msg = nlmsg_alloc(); 10097 if (!msg) 10098 return -1; 10099 10100 nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL); 10101 10102 if (nl80211_set_iface_id(msg, bss) < 0) 10103 goto nla_put_failure; 10104 10105 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie); 10106 10107 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10108 msg = NULL; 10109 if (ret == 0) 10110 return 0; 10111 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: " 10112 "%d (%s)", ret, strerror(-ret)); 10113nla_put_failure: 10114 nlmsg_free(msg); 10115 return -1; 10116} 10117 10118 10119static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report) 10120{ 10121 struct wpa_driver_nl80211_data *drv = bss->drv; 10122 10123 if (!report) { 10124 if (bss->nl_preq && drv->device_ap_sme && 10125 is_ap_interface(drv->nlmode)) { 10126 /* 10127 * Do not disable Probe Request reporting that was 10128 * enabled in nl80211_setup_ap(). 10129 */ 10130 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of " 10131 "Probe Request reporting nl_preq=%p while " 10132 "in AP mode", bss->nl_preq); 10133 } else if (bss->nl_preq) { 10134 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request " 10135 "reporting nl_preq=%p", bss->nl_preq); 10136 nl80211_destroy_eloop_handle(&bss->nl_preq); 10137 } 10138 return 0; 10139 } 10140 10141 if (bss->nl_preq) { 10142 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting " 10143 "already on! nl_preq=%p", bss->nl_preq); 10144 return 0; 10145 } 10146 10147 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq"); 10148 if (bss->nl_preq == NULL) 10149 return -1; 10150 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request " 10151 "reporting nl_preq=%p", bss->nl_preq); 10152 10153 if (nl80211_register_frame(bss, bss->nl_preq, 10154 (WLAN_FC_TYPE_MGMT << 2) | 10155 (WLAN_FC_STYPE_PROBE_REQ << 4), 10156 NULL, 0) < 0) 10157 goto out_err; 10158 10159 nl80211_register_eloop_read(&bss->nl_preq, 10160 wpa_driver_nl80211_event_receive, 10161 bss->nl_cb); 10162 10163 return 0; 10164 10165 out_err: 10166 nl_destroy_handles(&bss->nl_preq); 10167 return -1; 10168} 10169 10170 10171static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 10172 int ifindex, int disabled) 10173{ 10174 struct nl_msg *msg; 10175 struct nlattr *bands, *band; 10176 int ret; 10177 10178 msg = nlmsg_alloc(); 10179 if (!msg) 10180 return -1; 10181 10182 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK); 10183 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 10184 10185 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES); 10186 if (!bands) 10187 goto nla_put_failure; 10188 10189 /* 10190 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything 10191 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS 10192 * rates. All 5 GHz rates are left enabled. 10193 */ 10194 band = nla_nest_start(msg, NL80211_BAND_2GHZ); 10195 if (!band) 10196 goto nla_put_failure; 10197 if (disabled) { 10198 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8, 10199 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 10200 } 10201 nla_nest_end(msg, band); 10202 10203 nla_nest_end(msg, bands); 10204 10205 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10206 msg = NULL; 10207 if (ret) { 10208 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d " 10209 "(%s)", ret, strerror(-ret)); 10210 } else 10211 drv->disabled_11b_rates = disabled; 10212 10213 return ret; 10214 10215nla_put_failure: 10216 nlmsg_free(msg); 10217 return -1; 10218} 10219 10220 10221static int wpa_driver_nl80211_deinit_ap(void *priv) 10222{ 10223 struct i802_bss *bss = priv; 10224 struct wpa_driver_nl80211_data *drv = bss->drv; 10225 if (!is_ap_interface(drv->nlmode)) 10226 return -1; 10227 wpa_driver_nl80211_del_beacon(drv); 10228 10229 /* 10230 * If the P2P GO interface was dynamically added, then it is 10231 * possible that the interface change to station is not possible. 10232 */ 10233 if (drv->nlmode == NL80211_IFTYPE_P2P_GO && bss->if_dynamic) 10234 return 0; 10235 10236 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 10237} 10238 10239 10240static int wpa_driver_nl80211_stop_ap(void *priv) 10241{ 10242 struct i802_bss *bss = priv; 10243 struct wpa_driver_nl80211_data *drv = bss->drv; 10244 if (!is_ap_interface(drv->nlmode)) 10245 return -1; 10246 wpa_driver_nl80211_del_beacon(drv); 10247 bss->beacon_set = 0; 10248 return 0; 10249} 10250 10251 10252static int wpa_driver_nl80211_deinit_p2p_cli(void *priv) 10253{ 10254 struct i802_bss *bss = priv; 10255 struct wpa_driver_nl80211_data *drv = bss->drv; 10256 if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT) 10257 return -1; 10258 10259 /* 10260 * If the P2P Client interface was dynamically added, then it is 10261 * possible that the interface change to station is not possible. 10262 */ 10263 if (bss->if_dynamic) 10264 return 0; 10265 10266 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 10267} 10268 10269 10270static void wpa_driver_nl80211_resume(void *priv) 10271{ 10272 struct i802_bss *bss = priv; 10273 10274 if (i802_set_iface_flags(bss, 1)) 10275 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on resume event"); 10276} 10277 10278 10279static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap, 10280 const u8 *ies, size_t ies_len) 10281{ 10282 struct i802_bss *bss = priv; 10283 struct wpa_driver_nl80211_data *drv = bss->drv; 10284 int ret; 10285 u8 *data, *pos; 10286 size_t data_len; 10287 const u8 *own_addr = bss->addr; 10288 10289 if (action != 1) { 10290 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action " 10291 "action %d", action); 10292 return -1; 10293 } 10294 10295 /* 10296 * Action frame payload: 10297 * Category[1] = 6 (Fast BSS Transition) 10298 * Action[1] = 1 (Fast BSS Transition Request) 10299 * STA Address 10300 * Target AP Address 10301 * FT IEs 10302 */ 10303 10304 data_len = 2 + 2 * ETH_ALEN + ies_len; 10305 data = os_malloc(data_len); 10306 if (data == NULL) 10307 return -1; 10308 pos = data; 10309 *pos++ = 0x06; /* FT Action category */ 10310 *pos++ = action; 10311 os_memcpy(pos, own_addr, ETH_ALEN); 10312 pos += ETH_ALEN; 10313 os_memcpy(pos, target_ap, ETH_ALEN); 10314 pos += ETH_ALEN; 10315 os_memcpy(pos, ies, ies_len); 10316 10317 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0, 10318 drv->bssid, own_addr, drv->bssid, 10319 data, data_len, 0); 10320 os_free(data); 10321 10322 return ret; 10323} 10324 10325 10326static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis) 10327{ 10328 struct i802_bss *bss = priv; 10329 struct wpa_driver_nl80211_data *drv = bss->drv; 10330 struct nl_msg *msg; 10331 struct nlattr *cqm; 10332 int ret = -1; 10333 10334 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d " 10335 "hysteresis=%d", threshold, hysteresis); 10336 10337 msg = nlmsg_alloc(); 10338 if (!msg) 10339 return -1; 10340 10341 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM); 10342 10343 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10344 10345 cqm = nla_nest_start(msg, NL80211_ATTR_CQM); 10346 if (cqm == NULL) 10347 goto nla_put_failure; 10348 10349 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THOLD, threshold); 10350 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_HYST, hysteresis); 10351 nla_nest_end(msg, cqm); 10352 10353 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10354 msg = NULL; 10355 10356nla_put_failure: 10357 nlmsg_free(msg); 10358 return ret; 10359} 10360 10361 10362static int get_channel_width(struct nl_msg *msg, void *arg) 10363{ 10364 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 10365 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 10366 struct wpa_signal_info *sig_change = arg; 10367 10368 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 10369 genlmsg_attrlen(gnlh, 0), NULL); 10370 10371 sig_change->center_frq1 = -1; 10372 sig_change->center_frq2 = -1; 10373 sig_change->chanwidth = CHAN_WIDTH_UNKNOWN; 10374 10375 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) { 10376 sig_change->chanwidth = convert2width( 10377 nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH])); 10378 if (tb[NL80211_ATTR_CENTER_FREQ1]) 10379 sig_change->center_frq1 = 10380 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); 10381 if (tb[NL80211_ATTR_CENTER_FREQ2]) 10382 sig_change->center_frq2 = 10383 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); 10384 } 10385 10386 return NL_SKIP; 10387} 10388 10389 10390static int nl80211_get_channel_width(struct wpa_driver_nl80211_data *drv, 10391 struct wpa_signal_info *sig) 10392{ 10393 struct nl_msg *msg; 10394 10395 msg = nlmsg_alloc(); 10396 if (!msg) 10397 return -ENOMEM; 10398 10399 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_INTERFACE); 10400 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10401 10402 return send_and_recv_msgs(drv, msg, get_channel_width, sig); 10403 10404nla_put_failure: 10405 nlmsg_free(msg); 10406 return -ENOBUFS; 10407} 10408 10409 10410static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si) 10411{ 10412 struct i802_bss *bss = priv; 10413 struct wpa_driver_nl80211_data *drv = bss->drv; 10414 int res; 10415 10416 os_memset(si, 0, sizeof(*si)); 10417 res = nl80211_get_link_signal(drv, si); 10418 if (res != 0) 10419 return res; 10420 10421 res = nl80211_get_channel_width(drv, si); 10422 if (res != 0) 10423 return res; 10424 10425 return nl80211_get_link_noise(drv, si); 10426} 10427 10428 10429static int wpa_driver_nl80211_shared_freq(void *priv) 10430{ 10431 struct i802_bss *bss = priv; 10432 struct wpa_driver_nl80211_data *drv = bss->drv; 10433 struct wpa_driver_nl80211_data *driver; 10434 int freq = 0; 10435 10436 /* 10437 * If the same PHY is in connected state with some other interface, 10438 * then retrieve the assoc freq. 10439 */ 10440 wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s", 10441 drv->phyname); 10442 10443 dl_list_for_each(driver, &drv->global->interfaces, 10444 struct wpa_driver_nl80211_data, list) { 10445 if (drv == driver || 10446 os_strcmp(drv->phyname, driver->phyname) != 0 || 10447 !driver->associated) 10448 continue; 10449 10450 wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s " 10451 MACSTR, 10452 driver->phyname, driver->first_bss->ifname, 10453 MAC2STR(driver->first_bss->addr)); 10454 if (is_ap_interface(driver->nlmode)) 10455 freq = driver->first_bss->freq; 10456 else 10457 freq = nl80211_get_assoc_freq(driver); 10458 wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d", 10459 drv->phyname, freq); 10460 } 10461 10462 if (!freq) 10463 wpa_printf(MSG_DEBUG, "nl80211: No shared interface for " 10464 "PHY (%s) in associated state", drv->phyname); 10465 10466 return freq; 10467} 10468 10469 10470static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len, 10471 int encrypt) 10472{ 10473 struct i802_bss *bss = priv; 10474 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0, 10475 0, 0, 0, 0); 10476} 10477 10478 10479static int nl80211_set_param(void *priv, const char *param) 10480{ 10481 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param); 10482 if (param == NULL) 10483 return 0; 10484 10485#ifdef CONFIG_P2P 10486 if (os_strstr(param, "use_p2p_group_interface=1")) { 10487 struct i802_bss *bss = priv; 10488 struct wpa_driver_nl80211_data *drv = bss->drv; 10489 10490 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 10491 "interface"); 10492 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 10493 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 10494 } 10495 10496 if (os_strstr(param, "p2p_device=1")) { 10497 struct i802_bss *bss = priv; 10498 struct wpa_driver_nl80211_data *drv = bss->drv; 10499 drv->allow_p2p_device = 1; 10500 } 10501#endif /* CONFIG_P2P */ 10502 10503 if (os_strstr(param, "use_monitor=1")) { 10504 struct i802_bss *bss = priv; 10505 struct wpa_driver_nl80211_data *drv = bss->drv; 10506 drv->use_monitor = 1; 10507 } 10508 10509 if (os_strstr(param, "force_connect_cmd=1")) { 10510 struct i802_bss *bss = priv; 10511 struct wpa_driver_nl80211_data *drv = bss->drv; 10512 drv->capa.flags &= ~WPA_DRIVER_FLAGS_SME; 10513 } 10514 10515 if (os_strstr(param, "no_offchannel_tx=1")) { 10516 struct i802_bss *bss = priv; 10517 struct wpa_driver_nl80211_data *drv = bss->drv; 10518 drv->capa.flags &= ~WPA_DRIVER_FLAGS_OFFCHANNEL_TX; 10519 drv->test_use_roc_tx = 1; 10520 } 10521 10522 return 0; 10523} 10524 10525 10526static void * nl80211_global_init(void) 10527{ 10528 struct nl80211_global *global; 10529 struct netlink_config *cfg; 10530 10531 global = os_zalloc(sizeof(*global)); 10532 if (global == NULL) 10533 return NULL; 10534 global->ioctl_sock = -1; 10535 dl_list_init(&global->interfaces); 10536 global->if_add_ifindex = -1; 10537 10538 cfg = os_zalloc(sizeof(*cfg)); 10539 if (cfg == NULL) 10540 goto err; 10541 10542 cfg->ctx = global; 10543 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink; 10544 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink; 10545 global->netlink = netlink_init(cfg); 10546 if (global->netlink == NULL) { 10547 os_free(cfg); 10548 goto err; 10549 } 10550 10551 if (wpa_driver_nl80211_init_nl_global(global) < 0) 10552 goto err; 10553 10554 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0); 10555 if (global->ioctl_sock < 0) { 10556 wpa_printf(MSG_ERROR, "nl80211: socket(PF_INET,SOCK_DGRAM) failed: %s", 10557 strerror(errno)); 10558 goto err; 10559 } 10560 10561 return global; 10562 10563err: 10564 nl80211_global_deinit(global); 10565 return NULL; 10566} 10567 10568 10569static void nl80211_global_deinit(void *priv) 10570{ 10571 struct nl80211_global *global = priv; 10572 if (global == NULL) 10573 return; 10574 if (!dl_list_empty(&global->interfaces)) { 10575 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at " 10576 "nl80211_global_deinit", 10577 dl_list_len(&global->interfaces)); 10578 } 10579 10580 if (global->netlink) 10581 netlink_deinit(global->netlink); 10582 10583 nl_destroy_handles(&global->nl); 10584 10585 if (global->nl_event) 10586 nl80211_destroy_eloop_handle(&global->nl_event); 10587 10588 nl_cb_put(global->nl_cb); 10589 10590 if (global->ioctl_sock >= 0) 10591 close(global->ioctl_sock); 10592 10593 os_free(global); 10594} 10595 10596 10597static const char * nl80211_get_radio_name(void *priv) 10598{ 10599 struct i802_bss *bss = priv; 10600 struct wpa_driver_nl80211_data *drv = bss->drv; 10601 return drv->phyname; 10602} 10603 10604 10605static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid, 10606 const u8 *pmkid) 10607{ 10608 struct nl_msg *msg; 10609 10610 msg = nlmsg_alloc(); 10611 if (!msg) 10612 return -ENOMEM; 10613 10614 nl80211_cmd(bss->drv, msg, 0, cmd); 10615 10616 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 10617 if (pmkid) 10618 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid); 10619 if (bssid) 10620 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); 10621 10622 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 10623 nla_put_failure: 10624 nlmsg_free(msg); 10625 return -ENOBUFS; 10626} 10627 10628 10629static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 10630{ 10631 struct i802_bss *bss = priv; 10632 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid)); 10633 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid); 10634} 10635 10636 10637static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 10638{ 10639 struct i802_bss *bss = priv; 10640 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR, 10641 MAC2STR(bssid)); 10642 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid); 10643} 10644 10645 10646static int nl80211_flush_pmkid(void *priv) 10647{ 10648 struct i802_bss *bss = priv; 10649 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs"); 10650 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL); 10651} 10652 10653 10654static void clean_survey_results(struct survey_results *survey_results) 10655{ 10656 struct freq_survey *survey, *tmp; 10657 10658 if (dl_list_empty(&survey_results->survey_list)) 10659 return; 10660 10661 dl_list_for_each_safe(survey, tmp, &survey_results->survey_list, 10662 struct freq_survey, list) { 10663 dl_list_del(&survey->list); 10664 os_free(survey); 10665 } 10666} 10667 10668 10669static void add_survey(struct nlattr **sinfo, u32 ifidx, 10670 struct dl_list *survey_list) 10671{ 10672 struct freq_survey *survey; 10673 10674 survey = os_zalloc(sizeof(struct freq_survey)); 10675 if (!survey) 10676 return; 10677 10678 survey->ifidx = ifidx; 10679 survey->freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); 10680 survey->filled = 0; 10681 10682 if (sinfo[NL80211_SURVEY_INFO_NOISE]) { 10683 survey->nf = (int8_t) 10684 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 10685 survey->filled |= SURVEY_HAS_NF; 10686 } 10687 10688 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]) { 10689 survey->channel_time = 10690 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]); 10691 survey->filled |= SURVEY_HAS_CHAN_TIME; 10692 } 10693 10694 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]) { 10695 survey->channel_time_busy = 10696 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]); 10697 survey->filled |= SURVEY_HAS_CHAN_TIME_BUSY; 10698 } 10699 10700 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]) { 10701 survey->channel_time_rx = 10702 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]); 10703 survey->filled |= SURVEY_HAS_CHAN_TIME_RX; 10704 } 10705 10706 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]) { 10707 survey->channel_time_tx = 10708 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]); 10709 survey->filled |= SURVEY_HAS_CHAN_TIME_TX; 10710 } 10711 10712 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)", 10713 survey->freq, 10714 survey->nf, 10715 (unsigned long int) survey->channel_time, 10716 (unsigned long int) survey->channel_time_busy, 10717 (unsigned long int) survey->channel_time_tx, 10718 (unsigned long int) survey->channel_time_rx, 10719 survey->filled); 10720 10721 dl_list_add_tail(survey_list, &survey->list); 10722} 10723 10724 10725static int check_survey_ok(struct nlattr **sinfo, u32 surveyed_freq, 10726 unsigned int freq_filter) 10727{ 10728 if (!freq_filter) 10729 return 1; 10730 10731 return freq_filter == surveyed_freq; 10732} 10733 10734 10735static int survey_handler(struct nl_msg *msg, void *arg) 10736{ 10737 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 10738 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 10739 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 10740 struct survey_results *survey_results; 10741 u32 surveyed_freq = 0; 10742 u32 ifidx; 10743 10744 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 10745 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 10746 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 10747 }; 10748 10749 survey_results = (struct survey_results *) arg; 10750 10751 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 10752 genlmsg_attrlen(gnlh, 0), NULL); 10753 10754 if (!tb[NL80211_ATTR_IFINDEX]) 10755 return NL_SKIP; 10756 10757 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 10758 10759 if (!tb[NL80211_ATTR_SURVEY_INFO]) 10760 return NL_SKIP; 10761 10762 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 10763 tb[NL80211_ATTR_SURVEY_INFO], 10764 survey_policy)) 10765 return NL_SKIP; 10766 10767 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) { 10768 wpa_printf(MSG_ERROR, "nl80211: Invalid survey data"); 10769 return NL_SKIP; 10770 } 10771 10772 surveyed_freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); 10773 10774 if (!check_survey_ok(sinfo, surveyed_freq, 10775 survey_results->freq_filter)) 10776 return NL_SKIP; 10777 10778 if (survey_results->freq_filter && 10779 survey_results->freq_filter != surveyed_freq) { 10780 wpa_printf(MSG_EXCESSIVE, "nl80211: Ignoring survey data for freq %d MHz", 10781 surveyed_freq); 10782 return NL_SKIP; 10783 } 10784 10785 add_survey(sinfo, ifidx, &survey_results->survey_list); 10786 10787 return NL_SKIP; 10788} 10789 10790 10791static int wpa_driver_nl80211_get_survey(void *priv, unsigned int freq) 10792{ 10793 struct i802_bss *bss = priv; 10794 struct wpa_driver_nl80211_data *drv = bss->drv; 10795 struct nl_msg *msg; 10796 int err = -ENOBUFS; 10797 union wpa_event_data data; 10798 struct survey_results *survey_results; 10799 10800 os_memset(&data, 0, sizeof(data)); 10801 survey_results = &data.survey_results; 10802 10803 dl_list_init(&survey_results->survey_list); 10804 10805 msg = nlmsg_alloc(); 10806 if (!msg) 10807 goto nla_put_failure; 10808 10809 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 10810 10811 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10812 10813 if (freq) 10814 data.survey_results.freq_filter = freq; 10815 10816 do { 10817 wpa_printf(MSG_DEBUG, "nl80211: Fetch survey data"); 10818 err = send_and_recv_msgs(drv, msg, survey_handler, 10819 survey_results); 10820 } while (err > 0); 10821 10822 if (err) { 10823 wpa_printf(MSG_ERROR, "nl80211: Failed to process survey data"); 10824 goto out_clean; 10825 } 10826 10827 wpa_supplicant_event(drv->ctx, EVENT_SURVEY, &data); 10828 10829out_clean: 10830 clean_survey_results(survey_results); 10831nla_put_failure: 10832 return err; 10833} 10834 10835 10836static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck, 10837 const u8 *replay_ctr) 10838{ 10839 struct i802_bss *bss = priv; 10840 struct wpa_driver_nl80211_data *drv = bss->drv; 10841 struct nlattr *replay_nested; 10842 struct nl_msg *msg; 10843 10844 msg = nlmsg_alloc(); 10845 if (!msg) 10846 return; 10847 10848 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD); 10849 10850 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10851 10852 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); 10853 if (!replay_nested) 10854 goto nla_put_failure; 10855 10856 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek); 10857 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck); 10858 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN, 10859 replay_ctr); 10860 10861 nla_nest_end(msg, replay_nested); 10862 10863 send_and_recv_msgs(drv, msg, NULL, NULL); 10864 return; 10865 nla_put_failure: 10866 nlmsg_free(msg); 10867} 10868 10869 10870static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr, 10871 const u8 *addr, int qos) 10872{ 10873 /* send data frame to poll STA and check whether 10874 * this frame is ACKed */ 10875 struct { 10876 struct ieee80211_hdr hdr; 10877 u16 qos_ctl; 10878 } STRUCT_PACKED nulldata; 10879 size_t size; 10880 10881 /* Send data frame to poll STA and check whether this frame is ACKed */ 10882 10883 os_memset(&nulldata, 0, sizeof(nulldata)); 10884 10885 if (qos) { 10886 nulldata.hdr.frame_control = 10887 IEEE80211_FC(WLAN_FC_TYPE_DATA, 10888 WLAN_FC_STYPE_QOS_NULL); 10889 size = sizeof(nulldata); 10890 } else { 10891 nulldata.hdr.frame_control = 10892 IEEE80211_FC(WLAN_FC_TYPE_DATA, 10893 WLAN_FC_STYPE_NULLFUNC); 10894 size = sizeof(struct ieee80211_hdr); 10895 } 10896 10897 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS); 10898 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN); 10899 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 10900 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 10901 10902 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0, 0, 0, 10903 0, 0) < 0) 10904 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to " 10905 "send poll frame"); 10906} 10907 10908static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr, 10909 int qos) 10910{ 10911 struct i802_bss *bss = priv; 10912 struct wpa_driver_nl80211_data *drv = bss->drv; 10913 struct nl_msg *msg; 10914 10915 if (!drv->poll_command_supported) { 10916 nl80211_send_null_frame(bss, own_addr, addr, qos); 10917 return; 10918 } 10919 10920 msg = nlmsg_alloc(); 10921 if (!msg) 10922 return; 10923 10924 nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT); 10925 10926 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10927 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 10928 10929 send_and_recv_msgs(drv, msg, NULL, NULL); 10930 return; 10931 nla_put_failure: 10932 nlmsg_free(msg); 10933} 10934 10935 10936static int nl80211_set_power_save(struct i802_bss *bss, int enabled) 10937{ 10938 struct nl_msg *msg; 10939 10940 msg = nlmsg_alloc(); 10941 if (!msg) 10942 return -ENOMEM; 10943 10944 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE); 10945 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10946 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, 10947 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED); 10948 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 10949nla_put_failure: 10950 nlmsg_free(msg); 10951 return -ENOBUFS; 10952} 10953 10954 10955static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps, 10956 int ctwindow) 10957{ 10958 struct i802_bss *bss = priv; 10959 10960 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d " 10961 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow); 10962 10963 if (opp_ps != -1 || ctwindow != -1) { 10964#ifdef ANDROID_P2P 10965 wpa_driver_set_p2p_ps(priv, legacy_ps, opp_ps, ctwindow); 10966#else /* ANDROID_P2P */ 10967 return -1; /* Not yet supported */ 10968#endif /* ANDROID_P2P */ 10969 } 10970 10971 if (legacy_ps == -1) 10972 return 0; 10973 if (legacy_ps != 0 && legacy_ps != 1) 10974 return -1; /* Not yet supported */ 10975 10976 return nl80211_set_power_save(bss, legacy_ps); 10977} 10978 10979 10980static int nl80211_start_radar_detection(void *priv, 10981 struct hostapd_freq_params *freq) 10982{ 10983 struct i802_bss *bss = priv; 10984 struct wpa_driver_nl80211_data *drv = bss->drv; 10985 struct nl_msg *msg; 10986 int ret; 10987 10988 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)", 10989 freq->freq, freq->ht_enabled, freq->vht_enabled, 10990 freq->bandwidth, freq->center_freq1, freq->center_freq2); 10991 10992 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_RADAR)) { 10993 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support radar " 10994 "detection"); 10995 return -1; 10996 } 10997 10998 msg = nlmsg_alloc(); 10999 if (!msg) 11000 return -1; 11001 11002 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_RADAR_DETECT); 11003 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11004 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); 11005 11006 if (freq->vht_enabled) { 11007 switch (freq->bandwidth) { 11008 case 20: 11009 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 11010 NL80211_CHAN_WIDTH_20); 11011 break; 11012 case 40: 11013 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 11014 NL80211_CHAN_WIDTH_40); 11015 break; 11016 case 80: 11017 if (freq->center_freq2) 11018 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 11019 NL80211_CHAN_WIDTH_80P80); 11020 else 11021 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 11022 NL80211_CHAN_WIDTH_80); 11023 break; 11024 case 160: 11025 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 11026 NL80211_CHAN_WIDTH_160); 11027 break; 11028 default: 11029 return -1; 11030 } 11031 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); 11032 if (freq->center_freq2) 11033 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, 11034 freq->center_freq2); 11035 } else if (freq->ht_enabled) { 11036 switch (freq->sec_channel_offset) { 11037 case -1: 11038 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 11039 NL80211_CHAN_HT40MINUS); 11040 break; 11041 case 1: 11042 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 11043 NL80211_CHAN_HT40PLUS); 11044 break; 11045 default: 11046 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 11047 NL80211_CHAN_HT20); 11048 break; 11049 } 11050 } 11051 11052 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 11053 if (ret == 0) 11054 return 0; 11055 wpa_printf(MSG_DEBUG, "nl80211: Failed to start radar detection: " 11056 "%d (%s)", ret, strerror(-ret)); 11057nla_put_failure: 11058 return -1; 11059} 11060 11061#ifdef CONFIG_TDLS 11062 11063static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code, 11064 u8 dialog_token, u16 status_code, 11065 const u8 *buf, size_t len) 11066{ 11067 struct i802_bss *bss = priv; 11068 struct wpa_driver_nl80211_data *drv = bss->drv; 11069 struct nl_msg *msg; 11070 11071 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 11072 return -EOPNOTSUPP; 11073 11074 if (!dst) 11075 return -EINVAL; 11076 11077 msg = nlmsg_alloc(); 11078 if (!msg) 11079 return -ENOMEM; 11080 11081 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT); 11082 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11083 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); 11084 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code); 11085 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token); 11086 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code); 11087 NLA_PUT(msg, NL80211_ATTR_IE, len, buf); 11088 11089 return send_and_recv_msgs(drv, msg, NULL, NULL); 11090 11091nla_put_failure: 11092 nlmsg_free(msg); 11093 return -ENOBUFS; 11094} 11095 11096 11097static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer) 11098{ 11099 struct i802_bss *bss = priv; 11100 struct wpa_driver_nl80211_data *drv = bss->drv; 11101 struct nl_msg *msg; 11102 enum nl80211_tdls_operation nl80211_oper; 11103 11104 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 11105 return -EOPNOTSUPP; 11106 11107 switch (oper) { 11108 case TDLS_DISCOVERY_REQ: 11109 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ; 11110 break; 11111 case TDLS_SETUP: 11112 nl80211_oper = NL80211_TDLS_SETUP; 11113 break; 11114 case TDLS_TEARDOWN: 11115 nl80211_oper = NL80211_TDLS_TEARDOWN; 11116 break; 11117 case TDLS_ENABLE_LINK: 11118 nl80211_oper = NL80211_TDLS_ENABLE_LINK; 11119 break; 11120 case TDLS_DISABLE_LINK: 11121 nl80211_oper = NL80211_TDLS_DISABLE_LINK; 11122 break; 11123 case TDLS_ENABLE: 11124 return 0; 11125 case TDLS_DISABLE: 11126 return 0; 11127 default: 11128 return -EINVAL; 11129 } 11130 11131 msg = nlmsg_alloc(); 11132 if (!msg) 11133 return -ENOMEM; 11134 11135 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER); 11136 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper); 11137 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11138 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer); 11139 11140 return send_and_recv_msgs(drv, msg, NULL, NULL); 11141 11142nla_put_failure: 11143 nlmsg_free(msg); 11144 return -ENOBUFS; 11145} 11146 11147#endif /* CONFIG TDLS */ 11148 11149 11150#ifdef ANDROID 11151 11152typedef struct android_wifi_priv_cmd { 11153 char *buf; 11154 int used_len; 11155 int total_len; 11156} android_wifi_priv_cmd; 11157 11158static int drv_errors = 0; 11159 11160static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv) 11161{ 11162 drv_errors++; 11163 if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) { 11164 drv_errors = 0; 11165 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED"); 11166 } 11167} 11168 11169 11170static int android_priv_cmd(struct i802_bss *bss, const char *cmd) 11171{ 11172 struct wpa_driver_nl80211_data *drv = bss->drv; 11173 struct ifreq ifr; 11174 android_wifi_priv_cmd priv_cmd; 11175 char buf[MAX_DRV_CMD_SIZE]; 11176 int ret; 11177 11178 os_memset(&ifr, 0, sizeof(ifr)); 11179 os_memset(&priv_cmd, 0, sizeof(priv_cmd)); 11180 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 11181 11182 os_memset(buf, 0, sizeof(buf)); 11183 os_strlcpy(buf, cmd, sizeof(buf)); 11184 11185 priv_cmd.buf = buf; 11186 priv_cmd.used_len = sizeof(buf); 11187 priv_cmd.total_len = sizeof(buf); 11188 ifr.ifr_data = &priv_cmd; 11189 11190 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 11191 if (ret < 0) { 11192 wpa_printf(MSG_ERROR, "%s: failed to issue private commands", 11193 __func__); 11194 wpa_driver_send_hang_msg(drv); 11195 return ret; 11196 } 11197 11198 drv_errors = 0; 11199 return 0; 11200} 11201 11202 11203static int android_pno_start(struct i802_bss *bss, 11204 struct wpa_driver_scan_params *params) 11205{ 11206 struct wpa_driver_nl80211_data *drv = bss->drv; 11207 struct ifreq ifr; 11208 android_wifi_priv_cmd priv_cmd; 11209 int ret = 0, i = 0, bp; 11210 char buf[WEXT_PNO_MAX_COMMAND_SIZE]; 11211 11212 bp = WEXT_PNOSETUP_HEADER_SIZE; 11213 os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp); 11214 buf[bp++] = WEXT_PNO_TLV_PREFIX; 11215 buf[bp++] = WEXT_PNO_TLV_VERSION; 11216 buf[bp++] = WEXT_PNO_TLV_SUBVERSION; 11217 buf[bp++] = WEXT_PNO_TLV_RESERVED; 11218 11219 while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) { 11220 /* Check that there is enough space needed for 1 more SSID, the 11221 * other sections and null termination */ 11222 if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN + 11223 WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf)) 11224 break; 11225 wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan", 11226 params->ssids[i].ssid, 11227 params->ssids[i].ssid_len); 11228 buf[bp++] = WEXT_PNO_SSID_SECTION; 11229 buf[bp++] = params->ssids[i].ssid_len; 11230 os_memcpy(&buf[bp], params->ssids[i].ssid, 11231 params->ssids[i].ssid_len); 11232 bp += params->ssids[i].ssid_len; 11233 i++; 11234 } 11235 11236 buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION; 11237 os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x", 11238 WEXT_PNO_SCAN_INTERVAL); 11239 bp += WEXT_PNO_SCAN_INTERVAL_LENGTH; 11240 11241 buf[bp++] = WEXT_PNO_REPEAT_SECTION; 11242 os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x", 11243 WEXT_PNO_REPEAT); 11244 bp += WEXT_PNO_REPEAT_LENGTH; 11245 11246 buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION; 11247 os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x", 11248 WEXT_PNO_MAX_REPEAT); 11249 bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1; 11250 11251 memset(&ifr, 0, sizeof(ifr)); 11252 memset(&priv_cmd, 0, sizeof(priv_cmd)); 11253 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 11254 11255 priv_cmd.buf = buf; 11256 priv_cmd.used_len = bp; 11257 priv_cmd.total_len = bp; 11258 ifr.ifr_data = &priv_cmd; 11259 11260 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 11261 11262 if (ret < 0) { 11263 wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d", 11264 ret); 11265 wpa_driver_send_hang_msg(drv); 11266 return ret; 11267 } 11268 11269 drv_errors = 0; 11270 11271 return android_priv_cmd(bss, "PNOFORCE 1"); 11272} 11273 11274 11275static int android_pno_stop(struct i802_bss *bss) 11276{ 11277 return android_priv_cmd(bss, "PNOFORCE 0"); 11278} 11279 11280#endif /* ANDROID */ 11281 11282 11283static int driver_nl80211_set_key(const char *ifname, void *priv, 11284 enum wpa_alg alg, const u8 *addr, 11285 int key_idx, int set_tx, 11286 const u8 *seq, size_t seq_len, 11287 const u8 *key, size_t key_len) 11288{ 11289 struct i802_bss *bss = priv; 11290 return wpa_driver_nl80211_set_key(ifname, bss, alg, addr, key_idx, 11291 set_tx, seq, seq_len, key, key_len); 11292} 11293 11294 11295static int driver_nl80211_scan2(void *priv, 11296 struct wpa_driver_scan_params *params) 11297{ 11298 struct i802_bss *bss = priv; 11299 return wpa_driver_nl80211_scan(bss, params); 11300} 11301 11302 11303static int driver_nl80211_deauthenticate(void *priv, const u8 *addr, 11304 int reason_code) 11305{ 11306 struct i802_bss *bss = priv; 11307 return wpa_driver_nl80211_deauthenticate(bss, addr, reason_code); 11308} 11309 11310 11311static int driver_nl80211_authenticate(void *priv, 11312 struct wpa_driver_auth_params *params) 11313{ 11314 struct i802_bss *bss = priv; 11315 return wpa_driver_nl80211_authenticate(bss, params); 11316} 11317 11318 11319static void driver_nl80211_deinit(void *priv) 11320{ 11321 struct i802_bss *bss = priv; 11322 wpa_driver_nl80211_deinit(bss); 11323} 11324 11325 11326static int driver_nl80211_if_remove(void *priv, enum wpa_driver_if_type type, 11327 const char *ifname) 11328{ 11329 struct i802_bss *bss = priv; 11330 return wpa_driver_nl80211_if_remove(bss, type, ifname); 11331} 11332 11333 11334static int driver_nl80211_send_mlme(void *priv, const u8 *data, 11335 size_t data_len, int noack) 11336{ 11337 struct i802_bss *bss = priv; 11338 return wpa_driver_nl80211_send_mlme(bss, data, data_len, noack, 11339 0, 0, 0, 0); 11340} 11341 11342 11343static int driver_nl80211_sta_remove(void *priv, const u8 *addr) 11344{ 11345 struct i802_bss *bss = priv; 11346 return wpa_driver_nl80211_sta_remove(bss, addr); 11347} 11348 11349 11350static int driver_nl80211_set_sta_vlan(void *priv, const u8 *addr, 11351 const char *ifname, int vlan_id) 11352{ 11353 struct i802_bss *bss = priv; 11354 return i802_set_sta_vlan(bss, addr, ifname, vlan_id); 11355} 11356 11357 11358static int driver_nl80211_read_sta_data(void *priv, 11359 struct hostap_sta_driver_data *data, 11360 const u8 *addr) 11361{ 11362 struct i802_bss *bss = priv; 11363 return i802_read_sta_data(bss, data, addr); 11364} 11365 11366 11367static int driver_nl80211_send_action(void *priv, unsigned int freq, 11368 unsigned int wait_time, 11369 const u8 *dst, const u8 *src, 11370 const u8 *bssid, 11371 const u8 *data, size_t data_len, 11372 int no_cck) 11373{ 11374 struct i802_bss *bss = priv; 11375 return wpa_driver_nl80211_send_action(bss, freq, wait_time, dst, src, 11376 bssid, data, data_len, no_cck); 11377} 11378 11379 11380static int driver_nl80211_probe_req_report(void *priv, int report) 11381{ 11382 struct i802_bss *bss = priv; 11383 return wpa_driver_nl80211_probe_req_report(bss, report); 11384} 11385 11386 11387static int wpa_driver_nl80211_update_ft_ies(void *priv, const u8 *md, 11388 const u8 *ies, size_t ies_len) 11389{ 11390 int ret; 11391 struct nl_msg *msg; 11392 struct i802_bss *bss = priv; 11393 struct wpa_driver_nl80211_data *drv = bss->drv; 11394 u16 mdid = WPA_GET_LE16(md); 11395 11396 msg = nlmsg_alloc(); 11397 if (!msg) 11398 return -ENOMEM; 11399 11400 wpa_printf(MSG_DEBUG, "nl80211: Updating FT IEs"); 11401 nl80211_cmd(drv, msg, 0, NL80211_CMD_UPDATE_FT_IES); 11402 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11403 NLA_PUT(msg, NL80211_ATTR_IE, ies_len, ies); 11404 NLA_PUT_U16(msg, NL80211_ATTR_MDID, mdid); 11405 11406 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 11407 if (ret) { 11408 wpa_printf(MSG_DEBUG, "nl80211: update_ft_ies failed " 11409 "err=%d (%s)", ret, strerror(-ret)); 11410 } 11411 11412 return ret; 11413 11414nla_put_failure: 11415 nlmsg_free(msg); 11416 return -ENOBUFS; 11417} 11418 11419 11420const u8 * wpa_driver_nl80211_get_macaddr(void *priv) 11421{ 11422 struct i802_bss *bss = priv; 11423 struct wpa_driver_nl80211_data *drv = bss->drv; 11424 11425 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) 11426 return NULL; 11427 11428 return bss->addr; 11429} 11430 11431 11432static const char * scan_state_str(enum scan_states scan_state) 11433{ 11434 switch (scan_state) { 11435 case NO_SCAN: 11436 return "NO_SCAN"; 11437 case SCAN_REQUESTED: 11438 return "SCAN_REQUESTED"; 11439 case SCAN_STARTED: 11440 return "SCAN_STARTED"; 11441 case SCAN_COMPLETED: 11442 return "SCAN_COMPLETED"; 11443 case SCAN_ABORTED: 11444 return "SCAN_ABORTED"; 11445 case SCHED_SCAN_STARTED: 11446 return "SCHED_SCAN_STARTED"; 11447 case SCHED_SCAN_STOPPED: 11448 return "SCHED_SCAN_STOPPED"; 11449 case SCHED_SCAN_RESULTS: 11450 return "SCHED_SCAN_RESULTS"; 11451 } 11452 11453 return "??"; 11454} 11455 11456 11457static int wpa_driver_nl80211_status(void *priv, char *buf, size_t buflen) 11458{ 11459 struct i802_bss *bss = priv; 11460 struct wpa_driver_nl80211_data *drv = bss->drv; 11461 int res; 11462 char *pos, *end; 11463 11464 pos = buf; 11465 end = buf + buflen; 11466 11467 res = os_snprintf(pos, end - pos, 11468 "ifindex=%d\n" 11469 "ifname=%s\n" 11470 "brname=%s\n" 11471 "addr=" MACSTR "\n" 11472 "freq=%d\n" 11473 "%s%s%s%s%s", 11474 bss->ifindex, 11475 bss->ifname, 11476 bss->brname, 11477 MAC2STR(bss->addr), 11478 bss->freq, 11479 bss->beacon_set ? "beacon_set=1\n" : "", 11480 bss->added_if_into_bridge ? 11481 "added_if_into_bridge=1\n" : "", 11482 bss->added_bridge ? "added_bridge=1\n" : "", 11483 bss->in_deinit ? "in_deinit=1\n" : "", 11484 bss->if_dynamic ? "if_dynamic=1\n" : ""); 11485 if (res < 0 || res >= end - pos) 11486 return pos - buf; 11487 pos += res; 11488 11489 if (bss->wdev_id_set) { 11490 res = os_snprintf(pos, end - pos, "wdev_id=%llu\n", 11491 (unsigned long long) bss->wdev_id); 11492 if (res < 0 || res >= end - pos) 11493 return pos - buf; 11494 pos += res; 11495 } 11496 11497 res = os_snprintf(pos, end - pos, 11498 "phyname=%s\n" 11499 "drv_ifindex=%d\n" 11500 "operstate=%d\n" 11501 "scan_state=%s\n" 11502 "auth_bssid=" MACSTR "\n" 11503 "auth_attempt_bssid=" MACSTR "\n" 11504 "bssid=" MACSTR "\n" 11505 "prev_bssid=" MACSTR "\n" 11506 "associated=%d\n" 11507 "assoc_freq=%u\n" 11508 "monitor_sock=%d\n" 11509 "monitor_ifidx=%d\n" 11510 "monitor_refcount=%d\n" 11511 "last_mgmt_freq=%u\n" 11512 "eapol_tx_sock=%d\n" 11513 "%s%s%s%s%s%s%s%s%s%s%s%s%s", 11514 drv->phyname, 11515 drv->ifindex, 11516 drv->operstate, 11517 scan_state_str(drv->scan_state), 11518 MAC2STR(drv->auth_bssid), 11519 MAC2STR(drv->auth_attempt_bssid), 11520 MAC2STR(drv->bssid), 11521 MAC2STR(drv->prev_bssid), 11522 drv->associated, 11523 drv->assoc_freq, 11524 drv->monitor_sock, 11525 drv->monitor_ifidx, 11526 drv->monitor_refcount, 11527 drv->last_mgmt_freq, 11528 drv->eapol_tx_sock, 11529 drv->ignore_if_down_event ? 11530 "ignore_if_down_event=1\n" : "", 11531 drv->scan_complete_events ? 11532 "scan_complete_events=1\n" : "", 11533 drv->disabled_11b_rates ? 11534 "disabled_11b_rates=1\n" : "", 11535 drv->pending_remain_on_chan ? 11536 "pending_remain_on_chan=1\n" : "", 11537 drv->in_interface_list ? "in_interface_list=1\n" : "", 11538 drv->device_ap_sme ? "device_ap_sme=1\n" : "", 11539 drv->poll_command_supported ? 11540 "poll_command_supported=1\n" : "", 11541 drv->data_tx_status ? "data_tx_status=1\n" : "", 11542 drv->scan_for_auth ? "scan_for_auth=1\n" : "", 11543 drv->retry_auth ? "retry_auth=1\n" : "", 11544 drv->use_monitor ? "use_monitor=1\n" : "", 11545 drv->ignore_next_local_disconnect ? 11546 "ignore_next_local_disconnect=1\n" : "", 11547 drv->allow_p2p_device ? "allow_p2p_device=1\n" : ""); 11548 if (res < 0 || res >= end - pos) 11549 return pos - buf; 11550 pos += res; 11551 11552 if (drv->has_capability) { 11553 res = os_snprintf(pos, end - pos, 11554 "capa.key_mgmt=0x%x\n" 11555 "capa.enc=0x%x\n" 11556 "capa.auth=0x%x\n" 11557 "capa.flags=0x%x\n" 11558 "capa.max_scan_ssids=%d\n" 11559 "capa.max_sched_scan_ssids=%d\n" 11560 "capa.sched_scan_supported=%d\n" 11561 "capa.max_match_sets=%d\n" 11562 "capa.max_remain_on_chan=%u\n" 11563 "capa.max_stations=%u\n" 11564 "capa.probe_resp_offloads=0x%x\n" 11565 "capa.max_acl_mac_addrs=%u\n" 11566 "capa.num_multichan_concurrent=%u\n", 11567 drv->capa.key_mgmt, 11568 drv->capa.enc, 11569 drv->capa.auth, 11570 drv->capa.flags, 11571 drv->capa.max_scan_ssids, 11572 drv->capa.max_sched_scan_ssids, 11573 drv->capa.sched_scan_supported, 11574 drv->capa.max_match_sets, 11575 drv->capa.max_remain_on_chan, 11576 drv->capa.max_stations, 11577 drv->capa.probe_resp_offloads, 11578 drv->capa.max_acl_mac_addrs, 11579 drv->capa.num_multichan_concurrent); 11580 if (res < 0 || res >= end - pos) 11581 return pos - buf; 11582 pos += res; 11583 } 11584 11585 return pos - buf; 11586} 11587 11588 11589static int set_beacon_data(struct nl_msg *msg, struct beacon_data *settings) 11590{ 11591 if (settings->head) 11592 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, 11593 settings->head_len, settings->head); 11594 11595 if (settings->tail) 11596 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, 11597 settings->tail_len, settings->tail); 11598 11599 if (settings->beacon_ies) 11600 NLA_PUT(msg, NL80211_ATTR_IE, 11601 settings->beacon_ies_len, settings->beacon_ies); 11602 11603 if (settings->proberesp_ies) 11604 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, 11605 settings->proberesp_ies_len, settings->proberesp_ies); 11606 11607 if (settings->assocresp_ies) 11608 NLA_PUT(msg, 11609 NL80211_ATTR_IE_ASSOC_RESP, 11610 settings->assocresp_ies_len, settings->assocresp_ies); 11611 11612 if (settings->probe_resp) 11613 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, 11614 settings->probe_resp_len, settings->probe_resp); 11615 11616 return 0; 11617 11618nla_put_failure: 11619 return -ENOBUFS; 11620} 11621 11622 11623static int nl80211_switch_channel(void *priv, struct csa_settings *settings) 11624{ 11625 struct nl_msg *msg; 11626 struct i802_bss *bss = priv; 11627 struct wpa_driver_nl80211_data *drv = bss->drv; 11628 struct nlattr *beacon_csa; 11629 int ret = -ENOBUFS; 11630 11631 wpa_printf(MSG_DEBUG, "nl80211: Channel switch request (cs_count=%u block_tx=%u freq=%d width=%d cf1=%d cf2=%d)", 11632 settings->cs_count, settings->block_tx, 11633 settings->freq_params.freq, settings->freq_params.bandwidth, 11634 settings->freq_params.center_freq1, 11635 settings->freq_params.center_freq2); 11636 11637 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_AP_CSA)) { 11638 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support channel switch command"); 11639 return -EOPNOTSUPP; 11640 } 11641 11642 if ((drv->nlmode != NL80211_IFTYPE_AP) && 11643 (drv->nlmode != NL80211_IFTYPE_P2P_GO)) 11644 return -EOPNOTSUPP; 11645 11646 /* check settings validity */ 11647 if (!settings->beacon_csa.tail || 11648 ((settings->beacon_csa.tail_len <= 11649 settings->counter_offset_beacon) || 11650 (settings->beacon_csa.tail[settings->counter_offset_beacon] != 11651 settings->cs_count))) 11652 return -EINVAL; 11653 11654 if (settings->beacon_csa.probe_resp && 11655 ((settings->beacon_csa.probe_resp_len <= 11656 settings->counter_offset_presp) || 11657 (settings->beacon_csa.probe_resp[settings->counter_offset_presp] != 11658 settings->cs_count))) 11659 return -EINVAL; 11660 11661 msg = nlmsg_alloc(); 11662 if (!msg) 11663 return -ENOMEM; 11664 11665 nl80211_cmd(drv, msg, 0, NL80211_CMD_CHANNEL_SWITCH); 11666 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11667 NLA_PUT_U32(msg, NL80211_ATTR_CH_SWITCH_COUNT, settings->cs_count); 11668 ret = nl80211_put_freq_params(msg, &settings->freq_params); 11669 if (ret) 11670 goto error; 11671 11672 if (settings->block_tx) 11673 NLA_PUT_FLAG(msg, NL80211_ATTR_CH_SWITCH_BLOCK_TX); 11674 11675 /* beacon_after params */ 11676 ret = set_beacon_data(msg, &settings->beacon_after); 11677 if (ret) 11678 goto error; 11679 11680 /* beacon_csa params */ 11681 beacon_csa = nla_nest_start(msg, NL80211_ATTR_CSA_IES); 11682 if (!beacon_csa) 11683 goto nla_put_failure; 11684 11685 ret = set_beacon_data(msg, &settings->beacon_csa); 11686 if (ret) 11687 goto error; 11688 11689 NLA_PUT_U16(msg, NL80211_ATTR_CSA_C_OFF_BEACON, 11690 settings->counter_offset_beacon); 11691 11692 if (settings->beacon_csa.probe_resp) 11693 NLA_PUT_U16(msg, NL80211_ATTR_CSA_C_OFF_PRESP, 11694 settings->counter_offset_presp); 11695 11696 nla_nest_end(msg, beacon_csa); 11697 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 11698 if (ret) { 11699 wpa_printf(MSG_DEBUG, "nl80211: switch_channel failed err=%d (%s)", 11700 ret, strerror(-ret)); 11701 } 11702 return ret; 11703 11704nla_put_failure: 11705 ret = -ENOBUFS; 11706error: 11707 nlmsg_free(msg); 11708 wpa_printf(MSG_DEBUG, "nl80211: Could not build channel switch request"); 11709 return ret; 11710} 11711 11712 11713static int nl80211_set_qos_map(void *priv, const u8 *qos_map_set, 11714 u8 qos_map_set_len) 11715{ 11716 struct i802_bss *bss = priv; 11717 struct wpa_driver_nl80211_data *drv = bss->drv; 11718 struct nl_msg *msg; 11719 int ret; 11720 11721 msg = nlmsg_alloc(); 11722 if (!msg) 11723 return -ENOMEM; 11724 11725 wpa_hexdump(MSG_DEBUG, "nl80211: Setting QoS Map", 11726 qos_map_set, qos_map_set_len); 11727 11728 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_QOS_MAP); 11729 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11730 NLA_PUT(msg, NL80211_ATTR_QOS_MAP, qos_map_set_len, qos_map_set); 11731 11732 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 11733 if (ret) 11734 wpa_printf(MSG_DEBUG, "nl80211: Setting QoS Map failed"); 11735 11736 return ret; 11737 11738nla_put_failure: 11739 nlmsg_free(msg); 11740 return -ENOBUFS; 11741} 11742 11743 11744const struct wpa_driver_ops wpa_driver_nl80211_ops = { 11745 .name = "nl80211", 11746 .desc = "Linux nl80211/cfg80211", 11747 .get_bssid = wpa_driver_nl80211_get_bssid, 11748 .get_ssid = wpa_driver_nl80211_get_ssid, 11749 .set_key = driver_nl80211_set_key, 11750 .scan2 = driver_nl80211_scan2, 11751 .sched_scan = wpa_driver_nl80211_sched_scan, 11752 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan, 11753 .get_scan_results2 = wpa_driver_nl80211_get_scan_results, 11754 .deauthenticate = driver_nl80211_deauthenticate, 11755 .authenticate = driver_nl80211_authenticate, 11756 .associate = wpa_driver_nl80211_associate, 11757 .global_init = nl80211_global_init, 11758 .global_deinit = nl80211_global_deinit, 11759 .init2 = wpa_driver_nl80211_init, 11760 .deinit = driver_nl80211_deinit, 11761 .get_capa = wpa_driver_nl80211_get_capa, 11762 .set_operstate = wpa_driver_nl80211_set_operstate, 11763 .set_supp_port = wpa_driver_nl80211_set_supp_port, 11764 .set_country = wpa_driver_nl80211_set_country, 11765 .get_country = wpa_driver_nl80211_get_country, 11766 .set_ap = wpa_driver_nl80211_set_ap, 11767 .set_acl = wpa_driver_nl80211_set_acl, 11768 .if_add = wpa_driver_nl80211_if_add, 11769 .if_remove = driver_nl80211_if_remove, 11770 .send_mlme = driver_nl80211_send_mlme, 11771 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data, 11772 .sta_add = wpa_driver_nl80211_sta_add, 11773 .sta_remove = driver_nl80211_sta_remove, 11774 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol, 11775 .sta_set_flags = wpa_driver_nl80211_sta_set_flags, 11776 .hapd_init = i802_init, 11777 .hapd_deinit = i802_deinit, 11778 .set_wds_sta = i802_set_wds_sta, 11779 .get_seqnum = i802_get_seqnum, 11780 .flush = i802_flush, 11781 .get_inact_sec = i802_get_inact_sec, 11782 .sta_clear_stats = i802_sta_clear_stats, 11783 .set_rts = i802_set_rts, 11784 .set_frag = i802_set_frag, 11785 .set_tx_queue_params = i802_set_tx_queue_params, 11786 .set_sta_vlan = driver_nl80211_set_sta_vlan, 11787 .sta_deauth = i802_sta_deauth, 11788 .sta_disassoc = i802_sta_disassoc, 11789 .read_sta_data = driver_nl80211_read_sta_data, 11790 .set_freq = i802_set_freq, 11791 .send_action = driver_nl80211_send_action, 11792 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait, 11793 .remain_on_channel = wpa_driver_nl80211_remain_on_channel, 11794 .cancel_remain_on_channel = 11795 wpa_driver_nl80211_cancel_remain_on_channel, 11796 .probe_req_report = driver_nl80211_probe_req_report, 11797 .deinit_ap = wpa_driver_nl80211_deinit_ap, 11798 .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli, 11799 .resume = wpa_driver_nl80211_resume, 11800 .send_ft_action = nl80211_send_ft_action, 11801 .signal_monitor = nl80211_signal_monitor, 11802 .signal_poll = nl80211_signal_poll, 11803 .send_frame = nl80211_send_frame, 11804 .shared_freq = wpa_driver_nl80211_shared_freq, 11805 .set_param = nl80211_set_param, 11806 .get_radio_name = nl80211_get_radio_name, 11807 .add_pmkid = nl80211_add_pmkid, 11808 .remove_pmkid = nl80211_remove_pmkid, 11809 .flush_pmkid = nl80211_flush_pmkid, 11810 .set_rekey_info = nl80211_set_rekey_info, 11811 .poll_client = nl80211_poll_client, 11812 .set_p2p_powersave = nl80211_set_p2p_powersave, 11813 .start_dfs_cac = nl80211_start_radar_detection, 11814 .stop_ap = wpa_driver_nl80211_stop_ap, 11815#ifdef CONFIG_TDLS 11816 .send_tdls_mgmt = nl80211_send_tdls_mgmt, 11817 .tdls_oper = nl80211_tdls_oper, 11818#endif /* CONFIG_TDLS */ 11819 .update_ft_ies = wpa_driver_nl80211_update_ft_ies, 11820 .get_mac_addr = wpa_driver_nl80211_get_macaddr, 11821 .get_survey = wpa_driver_nl80211_get_survey, 11822 .status = wpa_driver_nl80211_status, 11823 .switch_channel = nl80211_switch_channel, 11824#ifdef ANDROID_P2P 11825 .set_noa = wpa_driver_set_p2p_noa, 11826 .get_noa = wpa_driver_get_p2p_noa, 11827 .set_ap_wps_ie = wpa_driver_set_ap_wps_p2p_ie, 11828#endif /* ANDROID_P2P */ 11829#ifdef ANDROID 11830 .driver_cmd = wpa_driver_nl80211_driver_cmd, 11831#endif /* ANDROID */ 11832 .set_qos_map = nl80211_set_qos_map, 11833}; 11834