driver_nl80211.c revision 04f534e89ed127da4077485376f24debc50d80d5
1/* 2 * Driver interaction with Linux nl80211/cfg80211 3 * Copyright (c) 2002-2012, Jouni Malinen <j@w1.fi> 4 * Copyright (c) 2003-2004, Instant802 Networks, Inc. 5 * Copyright (c) 2005-2006, Devicescape Software, Inc. 6 * Copyright (c) 2007, Johannes Berg <johannes@sipsolutions.net> 7 * Copyright (c) 2009-2010, Atheros Communications 8 * 9 * This software may be distributed under the terms of the BSD license. 10 * See README for more details. 11 */ 12 13#include "includes.h" 14#include <sys/ioctl.h> 15#include <sys/types.h> 16#include <sys/stat.h> 17#include <fcntl.h> 18#include <net/if.h> 19#include <netlink/genl/genl.h> 20#include <netlink/genl/family.h> 21#include <netlink/genl/ctrl.h> 22#include <linux/rtnetlink.h> 23#include <netpacket/packet.h> 24#include <linux/filter.h> 25#include <linux/errqueue.h> 26#include "nl80211_copy.h" 27 28#include "common.h" 29#include "eloop.h" 30#include "utils/list.h" 31#include "common/ieee802_11_defs.h" 32#include "common/ieee802_11_common.h" 33#include "l2_packet/l2_packet.h" 34#include "netlink.h" 35#include "linux_ioctl.h" 36#include "radiotap.h" 37#include "radiotap_iter.h" 38#include "rfkill.h" 39#include "driver.h" 40 41#ifndef SO_WIFI_STATUS 42# if defined(__sparc__) 43# define SO_WIFI_STATUS 0x0025 44# elif defined(__parisc__) 45# define SO_WIFI_STATUS 0x4022 46# else 47# define SO_WIFI_STATUS 41 48# endif 49 50# define SCM_WIFI_STATUS SO_WIFI_STATUS 51#endif 52 53#ifndef SO_EE_ORIGIN_TXSTATUS 54#define SO_EE_ORIGIN_TXSTATUS 4 55#endif 56 57#ifndef PACKET_TX_TIMESTAMP 58#define PACKET_TX_TIMESTAMP 16 59#endif 60 61#ifdef ANDROID 62#include "android_drv.h" 63#endif /* ANDROID */ 64#ifdef CONFIG_LIBNL20 65/* libnl 2.0 compatibility code */ 66#define nl_handle nl_sock 67#define nl80211_handle_alloc nl_socket_alloc_cb 68#define nl80211_handle_destroy nl_socket_free 69#else 70/* 71 * libnl 1.1 has a bug, it tries to allocate socket numbers densely 72 * but when you free a socket again it will mess up its bitmap and 73 * and use the wrong number the next time it needs a socket ID. 74 * Therefore, we wrap the handle alloc/destroy and add our own pid 75 * accounting. 76 */ 77static uint32_t port_bitmap[32] = { 0 }; 78 79static struct nl_handle *nl80211_handle_alloc(void *cb) 80{ 81 struct nl_handle *handle; 82 uint32_t pid = getpid() & 0x3FFFFF; 83 int i; 84 85 handle = nl_handle_alloc_cb(cb); 86 87 for (i = 0; i < 1024; i++) { 88 if (port_bitmap[i / 32] & (1 << (i % 32))) 89 continue; 90 port_bitmap[i / 32] |= 1 << (i % 32); 91 pid += i << 22; 92 break; 93 } 94 95 nl_socket_set_local_port(handle, pid); 96 97 return handle; 98} 99 100static void nl80211_handle_destroy(struct nl_handle *handle) 101{ 102 uint32_t port = nl_socket_get_local_port(handle); 103 104 port >>= 22; 105 port_bitmap[port / 32] &= ~(1 << (port % 32)); 106 107 nl_handle_destroy(handle); 108} 109#endif /* CONFIG_LIBNL20 */ 110 111 112#ifdef ANDROID 113/* system/core/libnl_2 does not include nl_socket_set_nonblocking() */ 114static int android_nl_socket_set_nonblocking(struct nl_handle *handle) 115{ 116 return fcntl(nl_socket_get_fd(handle), F_SETFL, O_NONBLOCK); 117} 118#undef nl_socket_set_nonblocking 119#define nl_socket_set_nonblocking(h) android_nl_socket_set_nonblocking(h) 120#endif /* ANDROID */ 121 122 123static struct nl_handle * nl_create_handle(struct nl_cb *cb, const char *dbg) 124{ 125 struct nl_handle *handle; 126 127 handle = nl80211_handle_alloc(cb); 128 if (handle == NULL) { 129 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " 130 "callbacks (%s)", dbg); 131 return NULL; 132 } 133 134 if (genl_connect(handle)) { 135 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic " 136 "netlink (%s)", dbg); 137 nl80211_handle_destroy(handle); 138 return NULL; 139 } 140 141 return handle; 142} 143 144 145static void nl_destroy_handles(struct nl_handle **handle) 146{ 147 if (*handle == NULL) 148 return; 149 nl80211_handle_destroy(*handle); 150 *handle = NULL; 151} 152 153 154#if __WORDSIZE == 64 155#define ELOOP_SOCKET_INVALID (intptr_t) 0x8888888888888889ULL 156#else 157#define ELOOP_SOCKET_INVALID (intptr_t) 0x88888889ULL 158#endif 159 160static void nl80211_register_eloop_read(struct nl_handle **handle, 161 eloop_sock_handler handler, 162 void *eloop_data) 163{ 164 nl_socket_set_nonblocking(*handle); 165 eloop_register_read_sock(nl_socket_get_fd(*handle), handler, 166 eloop_data, *handle); 167 *handle = (void *) (((intptr_t) *handle) ^ ELOOP_SOCKET_INVALID); 168} 169 170 171static void nl80211_destroy_eloop_handle(struct nl_handle **handle) 172{ 173 *handle = (void *) (((intptr_t) *handle) ^ ELOOP_SOCKET_INVALID); 174 eloop_unregister_read_sock(nl_socket_get_fd(*handle)); 175 nl_destroy_handles(handle); 176} 177 178 179#ifndef IFF_LOWER_UP 180#define IFF_LOWER_UP 0x10000 /* driver signals L1 up */ 181#endif 182#ifndef IFF_DORMANT 183#define IFF_DORMANT 0x20000 /* driver signals dormant */ 184#endif 185 186#ifndef IF_OPER_DORMANT 187#define IF_OPER_DORMANT 5 188#endif 189#ifndef IF_OPER_UP 190#define IF_OPER_UP 6 191#endif 192 193struct nl80211_global { 194 struct dl_list interfaces; 195 int if_add_ifindex; 196 u64 if_add_wdevid; 197 int if_add_wdevid_set; 198 struct netlink_data *netlink; 199 struct nl_cb *nl_cb; 200 struct nl_handle *nl; 201 int nl80211_id; 202 int ioctl_sock; /* socket for ioctl() use */ 203 204 struct nl_handle *nl_event; 205}; 206 207struct nl80211_wiphy_data { 208 struct dl_list list; 209 struct dl_list bsss; 210 struct dl_list drvs; 211 212 struct nl_handle *nl_beacons; 213 struct nl_cb *nl_cb; 214 215 int wiphy_idx; 216}; 217 218static void nl80211_global_deinit(void *priv); 219 220struct i802_bss { 221 struct wpa_driver_nl80211_data *drv; 222 struct i802_bss *next; 223 int ifindex; 224 u64 wdev_id; 225 char ifname[IFNAMSIZ + 1]; 226 char brname[IFNAMSIZ]; 227 unsigned int beacon_set:1; 228 unsigned int added_if_into_bridge:1; 229 unsigned int added_bridge:1; 230 unsigned int in_deinit:1; 231 unsigned int wdev_id_set:1; 232 unsigned int added_if:1; 233 234 u8 addr[ETH_ALEN]; 235 236 int freq; 237 int if_dynamic; 238 239 void *ctx; 240 struct nl_handle *nl_preq, *nl_mgmt; 241 struct nl_cb *nl_cb; 242 243 struct nl80211_wiphy_data *wiphy_data; 244 struct dl_list wiphy_list; 245}; 246 247struct wpa_driver_nl80211_data { 248 struct nl80211_global *global; 249 struct dl_list list; 250 struct dl_list wiphy_list; 251 char phyname[32]; 252 void *ctx; 253 int ifindex; 254 int if_removed; 255 int if_disabled; 256 int ignore_if_down_event; 257 struct rfkill_data *rfkill; 258 struct wpa_driver_capa capa; 259 u8 *extended_capa, *extended_capa_mask; 260 unsigned int extended_capa_len; 261 int has_capability; 262 263 int operstate; 264 265 int scan_complete_events; 266 enum scan_states { 267 NO_SCAN, SCAN_REQUESTED, SCAN_STARTED, SCAN_COMPLETED, 268 SCAN_ABORTED, SCHED_SCAN_STARTED, SCHED_SCAN_STOPPED, 269 SCHED_SCAN_RESULTS 270 } scan_state; 271 272 struct nl_cb *nl_cb; 273 274 u8 auth_bssid[ETH_ALEN]; 275 u8 auth_attempt_bssid[ETH_ALEN]; 276 u8 bssid[ETH_ALEN]; 277 u8 prev_bssid[ETH_ALEN]; 278 int associated; 279 u8 ssid[32]; 280 size_t ssid_len; 281 enum nl80211_iftype nlmode; 282 enum nl80211_iftype ap_scan_as_station; 283 unsigned int assoc_freq; 284 285 int monitor_sock; 286 int monitor_ifidx; 287 int monitor_refcount; 288 289 unsigned int disabled_11b_rates:1; 290 unsigned int pending_remain_on_chan:1; 291 unsigned int in_interface_list:1; 292 unsigned int device_ap_sme:1; 293 unsigned int poll_command_supported:1; 294 unsigned int data_tx_status:1; 295 unsigned int scan_for_auth:1; 296 unsigned int retry_auth:1; 297 unsigned int use_monitor:1; 298 unsigned int ignore_next_local_disconnect:1; 299 unsigned int allow_p2p_device:1; 300 unsigned int hostapd:1; 301 unsigned int start_mode_ap:1; 302 unsigned int start_iface_up:1; 303 unsigned int channel_switch_supported:1; 304 305 u64 remain_on_chan_cookie; 306 u64 send_action_cookie; 307 308 unsigned int last_mgmt_freq; 309 310 struct wpa_driver_scan_filter *filter_ssids; 311 size_t num_filter_ssids; 312 313 struct i802_bss *first_bss; 314 315 int eapol_tx_sock; 316 317 int eapol_sock; /* socket for EAPOL frames */ 318 319 int default_if_indices[16]; 320 int *if_indices; 321 int num_if_indices; 322 323 /* From failed authentication command */ 324 int auth_freq; 325 u8 auth_bssid_[ETH_ALEN]; 326 u8 auth_ssid[32]; 327 size_t auth_ssid_len; 328 int auth_alg; 329 u8 *auth_ie; 330 size_t auth_ie_len; 331 u8 auth_wep_key[4][16]; 332 size_t auth_wep_key_len[4]; 333 int auth_wep_tx_keyidx; 334 int auth_local_state_change; 335 int auth_p2p; 336}; 337 338 339static void wpa_driver_nl80211_deinit(struct i802_bss *bss); 340static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, 341 void *timeout_ctx); 342static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 343 enum nl80211_iftype nlmode); 344static int 345wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv, 346 const u8 *set_addr, int first); 347static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 348 const u8 *addr, int cmd, u16 reason_code, 349 int local_state_change); 350static void nl80211_remove_monitor_interface( 351 struct wpa_driver_nl80211_data *drv); 352static int nl80211_send_frame_cmd(struct i802_bss *bss, 353 unsigned int freq, unsigned int wait, 354 const u8 *buf, size_t buf_len, u64 *cookie, 355 int no_cck, int no_ack, int offchanok); 356static int nl80211_register_frame(struct i802_bss *bss, 357 struct nl_handle *hl_handle, 358 u16 type, const u8 *match, size_t match_len); 359static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, 360 int report); 361#ifdef ANDROID 362static int android_pno_start(struct i802_bss *bss, 363 struct wpa_driver_scan_params *params); 364static int android_pno_stop(struct i802_bss *bss); 365extern int wpa_driver_nl80211_driver_cmd(void *priv, char *cmd, char *buf, 366 size_t buf_len); 367#endif /* ANDROID */ 368#ifdef ANDROID_P2P 369int wpa_driver_set_p2p_noa(void *priv, u8 count, int start, int duration); 370int wpa_driver_get_p2p_noa(void *priv, u8 *buf, size_t len); 371int wpa_driver_set_p2p_ps(void *priv, int legacy_ps, int opp_ps, int ctwindow); 372int wpa_driver_set_ap_wps_p2p_ie(void *priv, const struct wpabuf *beacon, 373 const struct wpabuf *proberesp, 374 const struct wpabuf *assocresp); 375#endif /* ANDROID_P2P */ 376 377static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 378static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 379static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 380static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 381 enum wpa_driver_if_type type, 382 const char *ifname); 383 384static int wpa_driver_nl80211_set_freq(struct i802_bss *bss, 385 struct hostapd_freq_params *freq); 386static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 387 int ifindex, int disabled); 388 389static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv); 390static int wpa_driver_nl80211_authenticate_retry( 391 struct wpa_driver_nl80211_data *drv); 392 393static int i802_set_iface_flags(struct i802_bss *bss, int up); 394 395 396static const char * nl80211_command_to_string(enum nl80211_commands cmd) 397{ 398#define C2S(x) case x: return #x; 399 switch (cmd) { 400 C2S(NL80211_CMD_UNSPEC) 401 C2S(NL80211_CMD_GET_WIPHY) 402 C2S(NL80211_CMD_SET_WIPHY) 403 C2S(NL80211_CMD_NEW_WIPHY) 404 C2S(NL80211_CMD_DEL_WIPHY) 405 C2S(NL80211_CMD_GET_INTERFACE) 406 C2S(NL80211_CMD_SET_INTERFACE) 407 C2S(NL80211_CMD_NEW_INTERFACE) 408 C2S(NL80211_CMD_DEL_INTERFACE) 409 C2S(NL80211_CMD_GET_KEY) 410 C2S(NL80211_CMD_SET_KEY) 411 C2S(NL80211_CMD_NEW_KEY) 412 C2S(NL80211_CMD_DEL_KEY) 413 C2S(NL80211_CMD_GET_BEACON) 414 C2S(NL80211_CMD_SET_BEACON) 415 C2S(NL80211_CMD_START_AP) 416 C2S(NL80211_CMD_STOP_AP) 417 C2S(NL80211_CMD_GET_STATION) 418 C2S(NL80211_CMD_SET_STATION) 419 C2S(NL80211_CMD_NEW_STATION) 420 C2S(NL80211_CMD_DEL_STATION) 421 C2S(NL80211_CMD_GET_MPATH) 422 C2S(NL80211_CMD_SET_MPATH) 423 C2S(NL80211_CMD_NEW_MPATH) 424 C2S(NL80211_CMD_DEL_MPATH) 425 C2S(NL80211_CMD_SET_BSS) 426 C2S(NL80211_CMD_SET_REG) 427 C2S(NL80211_CMD_REQ_SET_REG) 428 C2S(NL80211_CMD_GET_MESH_CONFIG) 429 C2S(NL80211_CMD_SET_MESH_CONFIG) 430 C2S(NL80211_CMD_SET_MGMT_EXTRA_IE) 431 C2S(NL80211_CMD_GET_REG) 432 C2S(NL80211_CMD_GET_SCAN) 433 C2S(NL80211_CMD_TRIGGER_SCAN) 434 C2S(NL80211_CMD_NEW_SCAN_RESULTS) 435 C2S(NL80211_CMD_SCAN_ABORTED) 436 C2S(NL80211_CMD_REG_CHANGE) 437 C2S(NL80211_CMD_AUTHENTICATE) 438 C2S(NL80211_CMD_ASSOCIATE) 439 C2S(NL80211_CMD_DEAUTHENTICATE) 440 C2S(NL80211_CMD_DISASSOCIATE) 441 C2S(NL80211_CMD_MICHAEL_MIC_FAILURE) 442 C2S(NL80211_CMD_REG_BEACON_HINT) 443 C2S(NL80211_CMD_JOIN_IBSS) 444 C2S(NL80211_CMD_LEAVE_IBSS) 445 C2S(NL80211_CMD_TESTMODE) 446 C2S(NL80211_CMD_CONNECT) 447 C2S(NL80211_CMD_ROAM) 448 C2S(NL80211_CMD_DISCONNECT) 449 C2S(NL80211_CMD_SET_WIPHY_NETNS) 450 C2S(NL80211_CMD_GET_SURVEY) 451 C2S(NL80211_CMD_NEW_SURVEY_RESULTS) 452 C2S(NL80211_CMD_SET_PMKSA) 453 C2S(NL80211_CMD_DEL_PMKSA) 454 C2S(NL80211_CMD_FLUSH_PMKSA) 455 C2S(NL80211_CMD_REMAIN_ON_CHANNEL) 456 C2S(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL) 457 C2S(NL80211_CMD_SET_TX_BITRATE_MASK) 458 C2S(NL80211_CMD_REGISTER_FRAME) 459 C2S(NL80211_CMD_FRAME) 460 C2S(NL80211_CMD_FRAME_TX_STATUS) 461 C2S(NL80211_CMD_SET_POWER_SAVE) 462 C2S(NL80211_CMD_GET_POWER_SAVE) 463 C2S(NL80211_CMD_SET_CQM) 464 C2S(NL80211_CMD_NOTIFY_CQM) 465 C2S(NL80211_CMD_SET_CHANNEL) 466 C2S(NL80211_CMD_SET_WDS_PEER) 467 C2S(NL80211_CMD_FRAME_WAIT_CANCEL) 468 C2S(NL80211_CMD_JOIN_MESH) 469 C2S(NL80211_CMD_LEAVE_MESH) 470 C2S(NL80211_CMD_UNPROT_DEAUTHENTICATE) 471 C2S(NL80211_CMD_UNPROT_DISASSOCIATE) 472 C2S(NL80211_CMD_NEW_PEER_CANDIDATE) 473 C2S(NL80211_CMD_GET_WOWLAN) 474 C2S(NL80211_CMD_SET_WOWLAN) 475 C2S(NL80211_CMD_START_SCHED_SCAN) 476 C2S(NL80211_CMD_STOP_SCHED_SCAN) 477 C2S(NL80211_CMD_SCHED_SCAN_RESULTS) 478 C2S(NL80211_CMD_SCHED_SCAN_STOPPED) 479 C2S(NL80211_CMD_SET_REKEY_OFFLOAD) 480 C2S(NL80211_CMD_PMKSA_CANDIDATE) 481 C2S(NL80211_CMD_TDLS_OPER) 482 C2S(NL80211_CMD_TDLS_MGMT) 483 C2S(NL80211_CMD_UNEXPECTED_FRAME) 484 C2S(NL80211_CMD_PROBE_CLIENT) 485 C2S(NL80211_CMD_REGISTER_BEACONS) 486 C2S(NL80211_CMD_UNEXPECTED_4ADDR_FRAME) 487 C2S(NL80211_CMD_SET_NOACK_MAP) 488 C2S(NL80211_CMD_CH_SWITCH_NOTIFY) 489 C2S(NL80211_CMD_START_P2P_DEVICE) 490 C2S(NL80211_CMD_STOP_P2P_DEVICE) 491 C2S(NL80211_CMD_CONN_FAILED) 492 C2S(NL80211_CMD_SET_MCAST_RATE) 493 C2S(NL80211_CMD_SET_MAC_ACL) 494 C2S(NL80211_CMD_RADAR_DETECT) 495 C2S(NL80211_CMD_GET_PROTOCOL_FEATURES) 496 C2S(NL80211_CMD_UPDATE_FT_IES) 497 C2S(NL80211_CMD_FT_EVENT) 498 C2S(NL80211_CMD_CRIT_PROTOCOL_START) 499 C2S(NL80211_CMD_CRIT_PROTOCOL_STOP) 500 default: 501 return "NL80211_CMD_UNKNOWN"; 502 } 503#undef C2S 504} 505 506 507/* Converts nl80211_chan_width to a common format */ 508static enum chan_width convert2width(int width) 509{ 510 switch (width) { 511 case NL80211_CHAN_WIDTH_20_NOHT: 512 return CHAN_WIDTH_20_NOHT; 513 case NL80211_CHAN_WIDTH_20: 514 return CHAN_WIDTH_20; 515 case NL80211_CHAN_WIDTH_40: 516 return CHAN_WIDTH_40; 517 case NL80211_CHAN_WIDTH_80: 518 return CHAN_WIDTH_80; 519 case NL80211_CHAN_WIDTH_80P80: 520 return CHAN_WIDTH_80P80; 521 case NL80211_CHAN_WIDTH_160: 522 return CHAN_WIDTH_160; 523 } 524 return CHAN_WIDTH_UNKNOWN; 525} 526 527 528static int is_ap_interface(enum nl80211_iftype nlmode) 529{ 530 return (nlmode == NL80211_IFTYPE_AP || 531 nlmode == NL80211_IFTYPE_P2P_GO); 532} 533 534 535static int is_sta_interface(enum nl80211_iftype nlmode) 536{ 537 return (nlmode == NL80211_IFTYPE_STATION || 538 nlmode == NL80211_IFTYPE_P2P_CLIENT); 539} 540 541 542static int is_p2p_net_interface(enum nl80211_iftype nlmode) 543{ 544 return (nlmode == NL80211_IFTYPE_P2P_CLIENT || 545 nlmode == NL80211_IFTYPE_P2P_GO); 546} 547 548 549static void nl80211_mark_disconnected(struct wpa_driver_nl80211_data *drv) 550{ 551 if (drv->associated) 552 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); 553 drv->associated = 0; 554 os_memset(drv->bssid, 0, ETH_ALEN); 555} 556 557 558struct nl80211_bss_info_arg { 559 struct wpa_driver_nl80211_data *drv; 560 struct wpa_scan_results *res; 561 unsigned int assoc_freq; 562 u8 assoc_bssid[ETH_ALEN]; 563}; 564 565static int bss_info_handler(struct nl_msg *msg, void *arg); 566 567 568/* nl80211 code */ 569static int ack_handler(struct nl_msg *msg, void *arg) 570{ 571 int *err = arg; 572 *err = 0; 573 return NL_STOP; 574} 575 576static int finish_handler(struct nl_msg *msg, void *arg) 577{ 578 int *ret = arg; 579 *ret = 0; 580 return NL_SKIP; 581} 582 583static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err, 584 void *arg) 585{ 586 int *ret = arg; 587 *ret = err->error; 588 return NL_SKIP; 589} 590 591 592static int no_seq_check(struct nl_msg *msg, void *arg) 593{ 594 return NL_OK; 595} 596 597 598static int send_and_recv(struct nl80211_global *global, 599 struct nl_handle *nl_handle, struct nl_msg *msg, 600 int (*valid_handler)(struct nl_msg *, void *), 601 void *valid_data) 602{ 603 struct nl_cb *cb; 604 int err = -ENOMEM; 605 606 cb = nl_cb_clone(global->nl_cb); 607 if (!cb) 608 goto out; 609 610 err = nl_send_auto_complete(nl_handle, msg); 611 if (err < 0) 612 goto out; 613 614 err = 1; 615 616 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err); 617 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err); 618 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err); 619 620 if (valid_handler) 621 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, 622 valid_handler, valid_data); 623 624 while (err > 0) { 625 int res = nl_recvmsgs(nl_handle, cb); 626 if (res) { 627 wpa_printf(MSG_INFO, 628 "nl80211: %s->nl_recvmsgs failed: %d", 629 __func__, res); 630 } 631 } 632 out: 633 nl_cb_put(cb); 634 nlmsg_free(msg); 635 return err; 636} 637 638 639static int send_and_recv_msgs_global(struct nl80211_global *global, 640 struct nl_msg *msg, 641 int (*valid_handler)(struct nl_msg *, void *), 642 void *valid_data) 643{ 644 return send_and_recv(global, global->nl, msg, valid_handler, 645 valid_data); 646} 647 648 649static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv, 650 struct nl_msg *msg, 651 int (*valid_handler)(struct nl_msg *, void *), 652 void *valid_data) 653{ 654 return send_and_recv(drv->global, drv->global->nl, msg, 655 valid_handler, valid_data); 656} 657 658 659struct family_data { 660 const char *group; 661 int id; 662}; 663 664 665static int nl80211_set_iface_id(struct nl_msg *msg, struct i802_bss *bss) 666{ 667 if (bss->wdev_id_set) 668 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 669 else 670 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 671 return 0; 672 673nla_put_failure: 674 return -1; 675} 676 677 678static int family_handler(struct nl_msg *msg, void *arg) 679{ 680 struct family_data *res = arg; 681 struct nlattr *tb[CTRL_ATTR_MAX + 1]; 682 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 683 struct nlattr *mcgrp; 684 int i; 685 686 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 687 genlmsg_attrlen(gnlh, 0), NULL); 688 if (!tb[CTRL_ATTR_MCAST_GROUPS]) 689 return NL_SKIP; 690 691 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) { 692 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1]; 693 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp), 694 nla_len(mcgrp), NULL); 695 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] || 696 !tb2[CTRL_ATTR_MCAST_GRP_ID] || 697 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]), 698 res->group, 699 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0) 700 continue; 701 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]); 702 break; 703 }; 704 705 return NL_SKIP; 706} 707 708 709static int nl_get_multicast_id(struct nl80211_global *global, 710 const char *family, const char *group) 711{ 712 struct nl_msg *msg; 713 int ret = -1; 714 struct family_data res = { group, -ENOENT }; 715 716 msg = nlmsg_alloc(); 717 if (!msg) 718 return -ENOMEM; 719 genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"), 720 0, 0, CTRL_CMD_GETFAMILY, 0); 721 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family); 722 723 ret = send_and_recv_msgs_global(global, msg, family_handler, &res); 724 msg = NULL; 725 if (ret == 0) 726 ret = res.id; 727 728nla_put_failure: 729 nlmsg_free(msg); 730 return ret; 731} 732 733 734static void * nl80211_cmd(struct wpa_driver_nl80211_data *drv, 735 struct nl_msg *msg, int flags, uint8_t cmd) 736{ 737 return genlmsg_put(msg, 0, 0, drv->global->nl80211_id, 738 0, flags, cmd, 0); 739} 740 741 742struct wiphy_idx_data { 743 int wiphy_idx; 744 enum nl80211_iftype nlmode; 745 u8 *macaddr; 746}; 747 748 749static int netdev_info_handler(struct nl_msg *msg, void *arg) 750{ 751 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 752 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 753 struct wiphy_idx_data *info = arg; 754 755 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 756 genlmsg_attrlen(gnlh, 0), NULL); 757 758 if (tb[NL80211_ATTR_WIPHY]) 759 info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]); 760 761 if (tb[NL80211_ATTR_IFTYPE]) 762 info->nlmode = nla_get_u32(tb[NL80211_ATTR_IFTYPE]); 763 764 if (tb[NL80211_ATTR_MAC] && info->macaddr) 765 os_memcpy(info->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 766 ETH_ALEN); 767 768 return NL_SKIP; 769} 770 771 772static int nl80211_get_wiphy_index(struct i802_bss *bss) 773{ 774 struct nl_msg *msg; 775 struct wiphy_idx_data data = { 776 .wiphy_idx = -1, 777 .macaddr = NULL, 778 }; 779 780 msg = nlmsg_alloc(); 781 if (!msg) 782 return NL80211_IFTYPE_UNSPECIFIED; 783 784 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 785 786 if (nl80211_set_iface_id(msg, bss) < 0) 787 goto nla_put_failure; 788 789 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) 790 return data.wiphy_idx; 791 msg = NULL; 792nla_put_failure: 793 nlmsg_free(msg); 794 return -1; 795} 796 797 798static enum nl80211_iftype nl80211_get_ifmode(struct i802_bss *bss) 799{ 800 struct nl_msg *msg; 801 struct wiphy_idx_data data = { 802 .nlmode = NL80211_IFTYPE_UNSPECIFIED, 803 .macaddr = NULL, 804 }; 805 806 msg = nlmsg_alloc(); 807 if (!msg) 808 return -1; 809 810 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 811 812 if (nl80211_set_iface_id(msg, bss) < 0) 813 goto nla_put_failure; 814 815 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) 816 return data.nlmode; 817 msg = NULL; 818nla_put_failure: 819 nlmsg_free(msg); 820 return NL80211_IFTYPE_UNSPECIFIED; 821} 822 823 824static int nl80211_get_macaddr(struct i802_bss *bss) 825{ 826 struct nl_msg *msg; 827 struct wiphy_idx_data data = { 828 .macaddr = bss->addr, 829 }; 830 831 msg = nlmsg_alloc(); 832 if (!msg) 833 return NL80211_IFTYPE_UNSPECIFIED; 834 835 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 836 if (nl80211_set_iface_id(msg, bss) < 0) 837 goto nla_put_failure; 838 839 return send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data); 840 841nla_put_failure: 842 nlmsg_free(msg); 843 return NL80211_IFTYPE_UNSPECIFIED; 844} 845 846 847static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv, 848 struct nl80211_wiphy_data *w) 849{ 850 struct nl_msg *msg; 851 int ret = -1; 852 853 msg = nlmsg_alloc(); 854 if (!msg) 855 return -1; 856 857 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS); 858 859 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx); 860 861 ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL); 862 msg = NULL; 863 if (ret) { 864 wpa_printf(MSG_DEBUG, "nl80211: Register beacons command " 865 "failed: ret=%d (%s)", 866 ret, strerror(-ret)); 867 goto nla_put_failure; 868 } 869 ret = 0; 870nla_put_failure: 871 nlmsg_free(msg); 872 return ret; 873} 874 875 876static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle) 877{ 878 struct nl80211_wiphy_data *w = eloop_ctx; 879 int res; 880 881 wpa_printf(MSG_EXCESSIVE, "nl80211: Beacon event message available"); 882 883 res = nl_recvmsgs(handle, w->nl_cb); 884 if (res) { 885 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d", 886 __func__, res); 887 } 888} 889 890 891static int process_beacon_event(struct nl_msg *msg, void *arg) 892{ 893 struct nl80211_wiphy_data *w = arg; 894 struct wpa_driver_nl80211_data *drv; 895 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 896 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 897 union wpa_event_data event; 898 899 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 900 genlmsg_attrlen(gnlh, 0), NULL); 901 902 if (gnlh->cmd != NL80211_CMD_FRAME) { 903 wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)", 904 gnlh->cmd); 905 return NL_SKIP; 906 } 907 908 if (!tb[NL80211_ATTR_FRAME]) 909 return NL_SKIP; 910 911 dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data, 912 wiphy_list) { 913 os_memset(&event, 0, sizeof(event)); 914 event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]); 915 event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]); 916 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 917 } 918 919 return NL_SKIP; 920} 921 922 923static struct nl80211_wiphy_data * 924nl80211_get_wiphy_data_ap(struct i802_bss *bss) 925{ 926 static DEFINE_DL_LIST(nl80211_wiphys); 927 struct nl80211_wiphy_data *w; 928 int wiphy_idx, found = 0; 929 struct i802_bss *tmp_bss; 930 931 if (bss->wiphy_data != NULL) 932 return bss->wiphy_data; 933 934 wiphy_idx = nl80211_get_wiphy_index(bss); 935 936 dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) { 937 if (w->wiphy_idx == wiphy_idx) 938 goto add; 939 } 940 941 /* alloc new one */ 942 w = os_zalloc(sizeof(*w)); 943 if (w == NULL) 944 return NULL; 945 w->wiphy_idx = wiphy_idx; 946 dl_list_init(&w->bsss); 947 dl_list_init(&w->drvs); 948 949 w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 950 if (!w->nl_cb) { 951 os_free(w); 952 return NULL; 953 } 954 nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL); 955 nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_beacon_event, 956 w); 957 958 w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb, 959 "wiphy beacons"); 960 if (w->nl_beacons == NULL) { 961 os_free(w); 962 return NULL; 963 } 964 965 if (nl80211_register_beacons(bss->drv, w)) { 966 nl_destroy_handles(&w->nl_beacons); 967 os_free(w); 968 return NULL; 969 } 970 971 nl80211_register_eloop_read(&w->nl_beacons, nl80211_recv_beacons, w); 972 973 dl_list_add(&nl80211_wiphys, &w->list); 974 975add: 976 /* drv entry for this bss already there? */ 977 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { 978 if (tmp_bss->drv == bss->drv) { 979 found = 1; 980 break; 981 } 982 } 983 /* if not add it */ 984 if (!found) 985 dl_list_add(&w->drvs, &bss->drv->wiphy_list); 986 987 dl_list_add(&w->bsss, &bss->wiphy_list); 988 bss->wiphy_data = w; 989 return w; 990} 991 992 993static void nl80211_put_wiphy_data_ap(struct i802_bss *bss) 994{ 995 struct nl80211_wiphy_data *w = bss->wiphy_data; 996 struct i802_bss *tmp_bss; 997 int found = 0; 998 999 if (w == NULL) 1000 return; 1001 bss->wiphy_data = NULL; 1002 dl_list_del(&bss->wiphy_list); 1003 1004 /* still any for this drv present? */ 1005 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { 1006 if (tmp_bss->drv == bss->drv) { 1007 found = 1; 1008 break; 1009 } 1010 } 1011 /* if not remove it */ 1012 if (!found) 1013 dl_list_del(&bss->drv->wiphy_list); 1014 1015 if (!dl_list_empty(&w->bsss)) 1016 return; 1017 1018 nl80211_destroy_eloop_handle(&w->nl_beacons); 1019 1020 nl_cb_put(w->nl_cb); 1021 dl_list_del(&w->list); 1022 os_free(w); 1023} 1024 1025 1026static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid) 1027{ 1028 struct i802_bss *bss = priv; 1029 struct wpa_driver_nl80211_data *drv = bss->drv; 1030 if (!drv->associated) 1031 return -1; 1032 os_memcpy(bssid, drv->bssid, ETH_ALEN); 1033 return 0; 1034} 1035 1036 1037static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid) 1038{ 1039 struct i802_bss *bss = priv; 1040 struct wpa_driver_nl80211_data *drv = bss->drv; 1041 if (!drv->associated) 1042 return -1; 1043 os_memcpy(ssid, drv->ssid, drv->ssid_len); 1044 return drv->ssid_len; 1045} 1046 1047 1048static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv, 1049 char *buf, size_t len, int del) 1050{ 1051 union wpa_event_data event; 1052 1053 os_memset(&event, 0, sizeof(event)); 1054 if (len > sizeof(event.interface_status.ifname)) 1055 len = sizeof(event.interface_status.ifname) - 1; 1056 os_memcpy(event.interface_status.ifname, buf, len); 1057 event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED : 1058 EVENT_INTERFACE_ADDED; 1059 1060 wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s", 1061 del ? "DEL" : "NEW", 1062 event.interface_status.ifname, 1063 del ? "removed" : "added"); 1064 1065 if (os_strcmp(drv->first_bss->ifname, event.interface_status.ifname) == 1066 0) { 1067 if (del) { 1068 if (drv->if_removed) { 1069 wpa_printf(MSG_DEBUG, "nl80211: if_removed " 1070 "already set - ignore event"); 1071 return; 1072 } 1073 drv->if_removed = 1; 1074 } else { 1075 if (if_nametoindex(drv->first_bss->ifname) == 0) { 1076 wpa_printf(MSG_DEBUG, "nl80211: Interface %s " 1077 "does not exist - ignore " 1078 "RTM_NEWLINK", 1079 drv->first_bss->ifname); 1080 return; 1081 } 1082 if (!drv->if_removed) { 1083 wpa_printf(MSG_DEBUG, "nl80211: if_removed " 1084 "already cleared - ignore event"); 1085 return; 1086 } 1087 drv->if_removed = 0; 1088 } 1089 } 1090 1091 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); 1092} 1093 1094 1095static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv, 1096 u8 *buf, size_t len) 1097{ 1098 int attrlen, rta_len; 1099 struct rtattr *attr; 1100 1101 attrlen = len; 1102 attr = (struct rtattr *) buf; 1103 1104 rta_len = RTA_ALIGN(sizeof(struct rtattr)); 1105 while (RTA_OK(attr, attrlen)) { 1106 if (attr->rta_type == IFLA_IFNAME) { 1107 if (os_strcmp(((char *) attr) + rta_len, 1108 drv->first_bss->ifname) == 0) 1109 return 1; 1110 else 1111 break; 1112 } 1113 attr = RTA_NEXT(attr, attrlen); 1114 } 1115 1116 return 0; 1117} 1118 1119 1120static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv, 1121 int ifindex, u8 *buf, size_t len) 1122{ 1123 if (drv->ifindex == ifindex) 1124 return 1; 1125 1126 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) { 1127 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed " 1128 "interface"); 1129 wpa_driver_nl80211_finish_drv_init(drv, NULL, 0); 1130 return 1; 1131 } 1132 1133 return 0; 1134} 1135 1136 1137static struct wpa_driver_nl80211_data * 1138nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len) 1139{ 1140 struct wpa_driver_nl80211_data *drv; 1141 dl_list_for_each(drv, &global->interfaces, 1142 struct wpa_driver_nl80211_data, list) { 1143 if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) || 1144 have_ifidx(drv, idx)) 1145 return drv; 1146 } 1147 return NULL; 1148} 1149 1150 1151static void wpa_driver_nl80211_event_rtm_newlink(void *ctx, 1152 struct ifinfomsg *ifi, 1153 u8 *buf, size_t len) 1154{ 1155 struct nl80211_global *global = ctx; 1156 struct wpa_driver_nl80211_data *drv; 1157 int attrlen, rta_len; 1158 struct rtattr *attr; 1159 u32 brid = 0; 1160 char namebuf[IFNAMSIZ]; 1161 1162 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); 1163 if (!drv) { 1164 wpa_printf(MSG_DEBUG, "nl80211: Ignore event for foreign " 1165 "ifindex %d", ifi->ifi_index); 1166 return; 1167 } 1168 1169 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x " 1170 "(%s%s%s%s)", 1171 drv->operstate, ifi->ifi_flags, 1172 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "", 1173 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "", 1174 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "", 1175 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : ""); 1176 1177 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) { 1178 if (if_indextoname(ifi->ifi_index, namebuf) && 1179 linux_iface_up(drv->global->ioctl_sock, 1180 drv->first_bss->ifname) > 0) { 1181 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " 1182 "event since interface %s is up", namebuf); 1183 return; 1184 } 1185 wpa_printf(MSG_DEBUG, "nl80211: Interface down"); 1186 if (drv->ignore_if_down_event) { 1187 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " 1188 "event generated by mode change"); 1189 drv->ignore_if_down_event = 0; 1190 } else { 1191 drv->if_disabled = 1; 1192 wpa_supplicant_event(drv->ctx, 1193 EVENT_INTERFACE_DISABLED, NULL); 1194 } 1195 } 1196 1197 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) { 1198 if (if_indextoname(ifi->ifi_index, namebuf) && 1199 linux_iface_up(drv->global->ioctl_sock, 1200 drv->first_bss->ifname) == 0) { 1201 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1202 "event since interface %s is down", 1203 namebuf); 1204 } else if (if_nametoindex(drv->first_bss->ifname) == 0) { 1205 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1206 "event since interface %s does not exist", 1207 drv->first_bss->ifname); 1208 } else if (drv->if_removed) { 1209 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1210 "event since interface %s is marked " 1211 "removed", drv->first_bss->ifname); 1212 } else { 1213 wpa_printf(MSG_DEBUG, "nl80211: Interface up"); 1214 drv->if_disabled = 0; 1215 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED, 1216 NULL); 1217 } 1218 } 1219 1220 /* 1221 * Some drivers send the association event before the operup event--in 1222 * this case, lifting operstate in wpa_driver_nl80211_set_operstate() 1223 * fails. This will hit us when wpa_supplicant does not need to do 1224 * IEEE 802.1X authentication 1225 */ 1226 if (drv->operstate == 1 && 1227 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP && 1228 !(ifi->ifi_flags & IFF_RUNNING)) 1229 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 1230 -1, IF_OPER_UP); 1231 1232 attrlen = len; 1233 attr = (struct rtattr *) buf; 1234 rta_len = RTA_ALIGN(sizeof(struct rtattr)); 1235 while (RTA_OK(attr, attrlen)) { 1236 if (attr->rta_type == IFLA_IFNAME) { 1237 wpa_driver_nl80211_event_link( 1238 drv, 1239 ((char *) attr) + rta_len, 1240 attr->rta_len - rta_len, 0); 1241 } else if (attr->rta_type == IFLA_MASTER) 1242 brid = nla_get_u32((struct nlattr *) attr); 1243 attr = RTA_NEXT(attr, attrlen); 1244 } 1245 1246 if (ifi->ifi_family == AF_BRIDGE && brid) { 1247 /* device has been added to bridge */ 1248 if_indextoname(brid, namebuf); 1249 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s", 1250 brid, namebuf); 1251 add_ifidx(drv, brid); 1252 } 1253} 1254 1255 1256static void wpa_driver_nl80211_event_rtm_dellink(void *ctx, 1257 struct ifinfomsg *ifi, 1258 u8 *buf, size_t len) 1259{ 1260 struct nl80211_global *global = ctx; 1261 struct wpa_driver_nl80211_data *drv; 1262 int attrlen, rta_len; 1263 struct rtattr *attr; 1264 u32 brid = 0; 1265 1266 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); 1267 if (!drv) { 1268 wpa_printf(MSG_DEBUG, "nl80211: Ignore dellink event for " 1269 "foreign ifindex %d", ifi->ifi_index); 1270 return; 1271 } 1272 1273 attrlen = len; 1274 attr = (struct rtattr *) buf; 1275 1276 rta_len = RTA_ALIGN(sizeof(struct rtattr)); 1277 while (RTA_OK(attr, attrlen)) { 1278 if (attr->rta_type == IFLA_IFNAME) { 1279 wpa_driver_nl80211_event_link( 1280 drv, 1281 ((char *) attr) + rta_len, 1282 attr->rta_len - rta_len, 1); 1283 } else if (attr->rta_type == IFLA_MASTER) 1284 brid = nla_get_u32((struct nlattr *) attr); 1285 attr = RTA_NEXT(attr, attrlen); 1286 } 1287 1288 if (ifi->ifi_family == AF_BRIDGE && brid) { 1289 /* device has been removed from bridge */ 1290 char namebuf[IFNAMSIZ]; 1291 if_indextoname(brid, namebuf); 1292 wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge " 1293 "%s", brid, namebuf); 1294 del_ifidx(drv, brid); 1295 } 1296} 1297 1298 1299static void mlme_event_auth(struct wpa_driver_nl80211_data *drv, 1300 const u8 *frame, size_t len) 1301{ 1302 const struct ieee80211_mgmt *mgmt; 1303 union wpa_event_data event; 1304 1305 wpa_printf(MSG_DEBUG, "nl80211: Authenticate event"); 1306 mgmt = (const struct ieee80211_mgmt *) frame; 1307 if (len < 24 + sizeof(mgmt->u.auth)) { 1308 wpa_printf(MSG_DEBUG, "nl80211: Too short association event " 1309 "frame"); 1310 return; 1311 } 1312 1313 os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN); 1314 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 1315 os_memset(&event, 0, sizeof(event)); 1316 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN); 1317 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg); 1318 event.auth.auth_transaction = 1319 le_to_host16(mgmt->u.auth.auth_transaction); 1320 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code); 1321 if (len > 24 + sizeof(mgmt->u.auth)) { 1322 event.auth.ies = mgmt->u.auth.variable; 1323 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth); 1324 } 1325 1326 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event); 1327} 1328 1329 1330static unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv) 1331{ 1332 struct nl_msg *msg; 1333 int ret; 1334 struct nl80211_bss_info_arg arg; 1335 1336 os_memset(&arg, 0, sizeof(arg)); 1337 msg = nlmsg_alloc(); 1338 if (!msg) 1339 goto nla_put_failure; 1340 1341 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 1342 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 1343 1344 arg.drv = drv; 1345 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 1346 msg = NULL; 1347 if (ret == 0) { 1348 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the " 1349 "associated BSS from scan results: %u MHz", 1350 arg.assoc_freq); 1351 if (arg.assoc_freq) 1352 drv->assoc_freq = arg.assoc_freq; 1353 return drv->assoc_freq; 1354 } 1355 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 1356 "(%s)", ret, strerror(-ret)); 1357nla_put_failure: 1358 nlmsg_free(msg); 1359 return drv->assoc_freq; 1360} 1361 1362 1363static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv, 1364 const u8 *frame, size_t len) 1365{ 1366 const struct ieee80211_mgmt *mgmt; 1367 union wpa_event_data event; 1368 u16 status; 1369 1370 wpa_printf(MSG_DEBUG, "nl80211: Associate event"); 1371 mgmt = (const struct ieee80211_mgmt *) frame; 1372 if (len < 24 + sizeof(mgmt->u.assoc_resp)) { 1373 wpa_printf(MSG_DEBUG, "nl80211: Too short association event " 1374 "frame"); 1375 return; 1376 } 1377 1378 status = le_to_host16(mgmt->u.assoc_resp.status_code); 1379 if (status != WLAN_STATUS_SUCCESS) { 1380 os_memset(&event, 0, sizeof(event)); 1381 event.assoc_reject.bssid = mgmt->bssid; 1382 if (len > 24 + sizeof(mgmt->u.assoc_resp)) { 1383 event.assoc_reject.resp_ies = 1384 (u8 *) mgmt->u.assoc_resp.variable; 1385 event.assoc_reject.resp_ies_len = 1386 len - 24 - sizeof(mgmt->u.assoc_resp); 1387 } 1388 event.assoc_reject.status_code = status; 1389 1390 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); 1391 return; 1392 } 1393 1394 drv->associated = 1; 1395 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN); 1396 os_memcpy(drv->prev_bssid, mgmt->sa, ETH_ALEN); 1397 1398 os_memset(&event, 0, sizeof(event)); 1399 if (len > 24 + sizeof(mgmt->u.assoc_resp)) { 1400 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable; 1401 event.assoc_info.resp_ies_len = 1402 len - 24 - sizeof(mgmt->u.assoc_resp); 1403 } 1404 1405 event.assoc_info.freq = drv->assoc_freq; 1406 1407 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); 1408} 1409 1410 1411static void mlme_event_connect(struct wpa_driver_nl80211_data *drv, 1412 enum nl80211_commands cmd, struct nlattr *status, 1413 struct nlattr *addr, struct nlattr *req_ie, 1414 struct nlattr *resp_ie) 1415{ 1416 union wpa_event_data event; 1417 1418 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 1419 /* 1420 * Avoid reporting two association events that would confuse 1421 * the core code. 1422 */ 1423 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) " 1424 "when using userspace SME", cmd); 1425 return; 1426 } 1427 1428 if (cmd == NL80211_CMD_CONNECT) 1429 wpa_printf(MSG_DEBUG, "nl80211: Connect event"); 1430 else if (cmd == NL80211_CMD_ROAM) 1431 wpa_printf(MSG_DEBUG, "nl80211: Roam event"); 1432 1433 os_memset(&event, 0, sizeof(event)); 1434 if (cmd == NL80211_CMD_CONNECT && 1435 nla_get_u16(status) != WLAN_STATUS_SUCCESS) { 1436 if (addr) 1437 event.assoc_reject.bssid = nla_data(addr); 1438 if (resp_ie) { 1439 event.assoc_reject.resp_ies = nla_data(resp_ie); 1440 event.assoc_reject.resp_ies_len = nla_len(resp_ie); 1441 } 1442 event.assoc_reject.status_code = nla_get_u16(status); 1443 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); 1444 return; 1445 } 1446 1447 drv->associated = 1; 1448 if (addr) { 1449 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN); 1450 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); 1451 } 1452 1453 if (req_ie) { 1454 event.assoc_info.req_ies = nla_data(req_ie); 1455 event.assoc_info.req_ies_len = nla_len(req_ie); 1456 } 1457 if (resp_ie) { 1458 event.assoc_info.resp_ies = nla_data(resp_ie); 1459 event.assoc_info.resp_ies_len = nla_len(resp_ie); 1460 } 1461 1462 event.assoc_info.freq = nl80211_get_assoc_freq(drv); 1463 1464 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); 1465} 1466 1467 1468static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv, 1469 struct nlattr *reason, struct nlattr *addr, 1470 struct nlattr *by_ap) 1471{ 1472 union wpa_event_data data; 1473 unsigned int locally_generated = by_ap == NULL; 1474 1475 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 1476 /* 1477 * Avoid reporting two disassociation events that could 1478 * confuse the core code. 1479 */ 1480 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " 1481 "event when using userspace SME"); 1482 return; 1483 } 1484 1485 if (drv->ignore_next_local_disconnect) { 1486 drv->ignore_next_local_disconnect = 0; 1487 if (locally_generated) { 1488 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " 1489 "event triggered during reassociation"); 1490 return; 1491 } 1492 wpa_printf(MSG_WARNING, "nl80211: Was expecting local " 1493 "disconnect but got another disconnect " 1494 "event first"); 1495 } 1496 1497 wpa_printf(MSG_DEBUG, "nl80211: Disconnect event"); 1498 nl80211_mark_disconnected(drv); 1499 os_memset(&data, 0, sizeof(data)); 1500 if (reason) 1501 data.deauth_info.reason_code = nla_get_u16(reason); 1502 data.deauth_info.locally_generated = by_ap == NULL; 1503 wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, &data); 1504} 1505 1506 1507static void mlme_event_ch_switch(struct wpa_driver_nl80211_data *drv, 1508 struct nlattr *ifindex, struct nlattr *freq, 1509 struct nlattr *type, struct nlattr *bw, 1510 struct nlattr *cf1, struct nlattr *cf2) 1511{ 1512 struct i802_bss *bss; 1513 union wpa_event_data data; 1514 int ht_enabled = 1; 1515 int chan_offset = 0; 1516 int ifidx; 1517 1518 wpa_printf(MSG_DEBUG, "nl80211: Channel switch event"); 1519 1520 if (!freq) 1521 return; 1522 1523 ifidx = nla_get_u32(ifindex); 1524 for (bss = drv->first_bss; bss; bss = bss->next) 1525 if (bss->ifindex == ifidx) 1526 break; 1527 1528 if (bss == NULL) { 1529 wpa_printf(MSG_WARNING, "nl80211: Unknown ifindex (%d) for channel switch, ignoring", 1530 ifidx); 1531 return; 1532 } 1533 1534 if (type) { 1535 switch (nla_get_u32(type)) { 1536 case NL80211_CHAN_NO_HT: 1537 ht_enabled = 0; 1538 break; 1539 case NL80211_CHAN_HT20: 1540 break; 1541 case NL80211_CHAN_HT40PLUS: 1542 chan_offset = 1; 1543 break; 1544 case NL80211_CHAN_HT40MINUS: 1545 chan_offset = -1; 1546 break; 1547 } 1548 } 1549 1550 os_memset(&data, 0, sizeof(data)); 1551 data.ch_switch.freq = nla_get_u32(freq); 1552 data.ch_switch.ht_enabled = ht_enabled; 1553 data.ch_switch.ch_offset = chan_offset; 1554 if (bw) 1555 data.ch_switch.ch_width = convert2width(nla_get_u32(bw)); 1556 if (cf1) 1557 data.ch_switch.cf1 = nla_get_u32(cf1); 1558 if (cf2) 1559 data.ch_switch.cf2 = nla_get_u32(cf2); 1560 1561 bss->freq = data.ch_switch.freq; 1562 1563 wpa_supplicant_event(drv->ctx, EVENT_CH_SWITCH, &data); 1564} 1565 1566 1567static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv, 1568 enum nl80211_commands cmd, struct nlattr *addr) 1569{ 1570 union wpa_event_data event; 1571 enum wpa_event_type ev; 1572 1573 if (nla_len(addr) != ETH_ALEN) 1574 return; 1575 1576 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR, 1577 cmd, MAC2STR((u8 *) nla_data(addr))); 1578 1579 if (cmd == NL80211_CMD_AUTHENTICATE) 1580 ev = EVENT_AUTH_TIMED_OUT; 1581 else if (cmd == NL80211_CMD_ASSOCIATE) 1582 ev = EVENT_ASSOC_TIMED_OUT; 1583 else 1584 return; 1585 1586 os_memset(&event, 0, sizeof(event)); 1587 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN); 1588 wpa_supplicant_event(drv->ctx, ev, &event); 1589} 1590 1591 1592static void mlme_event_mgmt(struct wpa_driver_nl80211_data *drv, 1593 struct nlattr *freq, struct nlattr *sig, 1594 const u8 *frame, size_t len) 1595{ 1596 const struct ieee80211_mgmt *mgmt; 1597 union wpa_event_data event; 1598 u16 fc, stype; 1599 int ssi_signal = 0; 1600 int rx_freq = 0; 1601 1602 wpa_printf(MSG_MSGDUMP, "nl80211: Frame event"); 1603 mgmt = (const struct ieee80211_mgmt *) frame; 1604 if (len < 24) { 1605 wpa_printf(MSG_DEBUG, "nl80211: Too short action frame"); 1606 return; 1607 } 1608 1609 fc = le_to_host16(mgmt->frame_control); 1610 stype = WLAN_FC_GET_STYPE(fc); 1611 1612 if (sig) 1613 ssi_signal = (s32) nla_get_u32(sig); 1614 1615 os_memset(&event, 0, sizeof(event)); 1616 if (freq) { 1617 event.rx_action.freq = nla_get_u32(freq); 1618 rx_freq = drv->last_mgmt_freq = event.rx_action.freq; 1619 } 1620 wpa_printf(MSG_DEBUG, 1621 "nl80211: RX frame freq=%d ssi_signal=%d stype=%u len=%u", 1622 rx_freq, ssi_signal, stype, (unsigned int) len); 1623 if (stype == WLAN_FC_STYPE_ACTION) { 1624 event.rx_action.da = mgmt->da; 1625 event.rx_action.sa = mgmt->sa; 1626 event.rx_action.bssid = mgmt->bssid; 1627 event.rx_action.category = mgmt->u.action.category; 1628 event.rx_action.data = &mgmt->u.action.category + 1; 1629 event.rx_action.len = frame + len - event.rx_action.data; 1630 wpa_supplicant_event(drv->ctx, EVENT_RX_ACTION, &event); 1631 } else { 1632 event.rx_mgmt.frame = frame; 1633 event.rx_mgmt.frame_len = len; 1634 event.rx_mgmt.ssi_signal = ssi_signal; 1635 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 1636 } 1637} 1638 1639 1640static void mlme_event_mgmt_tx_status(struct wpa_driver_nl80211_data *drv, 1641 struct nlattr *cookie, const u8 *frame, 1642 size_t len, struct nlattr *ack) 1643{ 1644 union wpa_event_data event; 1645 const struct ieee80211_hdr *hdr; 1646 u16 fc; 1647 1648 wpa_printf(MSG_DEBUG, "nl80211: Frame TX status event"); 1649 if (!is_ap_interface(drv->nlmode)) { 1650 u64 cookie_val; 1651 1652 if (!cookie) 1653 return; 1654 1655 cookie_val = nla_get_u64(cookie); 1656 wpa_printf(MSG_DEBUG, "nl80211: Action TX status:" 1657 " cookie=0%llx%s (ack=%d)", 1658 (long long unsigned int) cookie_val, 1659 cookie_val == drv->send_action_cookie ? 1660 " (match)" : " (unknown)", ack != NULL); 1661 if (cookie_val != drv->send_action_cookie) 1662 return; 1663 } 1664 1665 hdr = (const struct ieee80211_hdr *) frame; 1666 fc = le_to_host16(hdr->frame_control); 1667 1668 os_memset(&event, 0, sizeof(event)); 1669 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 1670 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 1671 event.tx_status.dst = hdr->addr1; 1672 event.tx_status.data = frame; 1673 event.tx_status.data_len = len; 1674 event.tx_status.ack = ack != NULL; 1675 wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event); 1676} 1677 1678 1679static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv, 1680 enum wpa_event_type type, 1681 const u8 *frame, size_t len) 1682{ 1683 const struct ieee80211_mgmt *mgmt; 1684 union wpa_event_data event; 1685 const u8 *bssid = NULL; 1686 u16 reason_code = 0; 1687 1688 if (type == EVENT_DEAUTH) 1689 wpa_printf(MSG_DEBUG, "nl80211: Deauthenticate event"); 1690 else 1691 wpa_printf(MSG_DEBUG, "nl80211: Disassociate event"); 1692 1693 mgmt = (const struct ieee80211_mgmt *) frame; 1694 if (len >= 24) { 1695 bssid = mgmt->bssid; 1696 1697 if ((drv->capa.flags & WPA_DRIVER_FLAGS_SME) && 1698 !drv->associated && 1699 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0 && 1700 os_memcmp(bssid, drv->auth_attempt_bssid, ETH_ALEN) != 0 && 1701 os_memcmp(bssid, drv->prev_bssid, ETH_ALEN) == 0) { 1702 /* 1703 * Avoid issues with some roaming cases where 1704 * disconnection event for the old AP may show up after 1705 * we have started connection with the new AP. 1706 */ 1707 wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth/disassoc event from old AP " MACSTR " when already authenticating with " MACSTR, 1708 MAC2STR(bssid), 1709 MAC2STR(drv->auth_attempt_bssid)); 1710 return; 1711 } 1712 1713 if (drv->associated != 0 && 1714 os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 && 1715 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) { 1716 /* 1717 * We have presumably received this deauth as a 1718 * response to a clear_state_mismatch() outgoing 1719 * deauth. Don't let it take us offline! 1720 */ 1721 wpa_printf(MSG_DEBUG, "nl80211: Deauth received " 1722 "from Unknown BSSID " MACSTR " -- ignoring", 1723 MAC2STR(bssid)); 1724 return; 1725 } 1726 } 1727 1728 nl80211_mark_disconnected(drv); 1729 os_memset(&event, 0, sizeof(event)); 1730 1731 /* Note: Same offset for Reason Code in both frame subtypes */ 1732 if (len >= 24 + sizeof(mgmt->u.deauth)) 1733 reason_code = le_to_host16(mgmt->u.deauth.reason_code); 1734 1735 if (type == EVENT_DISASSOC) { 1736 event.disassoc_info.locally_generated = 1737 !os_memcmp(mgmt->sa, drv->first_bss->addr, ETH_ALEN); 1738 event.disassoc_info.addr = bssid; 1739 event.disassoc_info.reason_code = reason_code; 1740 if (frame + len > mgmt->u.disassoc.variable) { 1741 event.disassoc_info.ie = mgmt->u.disassoc.variable; 1742 event.disassoc_info.ie_len = frame + len - 1743 mgmt->u.disassoc.variable; 1744 } 1745 } else { 1746 event.deauth_info.locally_generated = 1747 !os_memcmp(mgmt->sa, drv->first_bss->addr, ETH_ALEN); 1748 event.deauth_info.addr = bssid; 1749 event.deauth_info.reason_code = reason_code; 1750 if (frame + len > mgmt->u.deauth.variable) { 1751 event.deauth_info.ie = mgmt->u.deauth.variable; 1752 event.deauth_info.ie_len = frame + len - 1753 mgmt->u.deauth.variable; 1754 } 1755 } 1756 1757 wpa_supplicant_event(drv->ctx, type, &event); 1758} 1759 1760 1761static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv, 1762 enum wpa_event_type type, 1763 const u8 *frame, size_t len) 1764{ 1765 const struct ieee80211_mgmt *mgmt; 1766 union wpa_event_data event; 1767 u16 reason_code = 0; 1768 1769 if (type == EVENT_UNPROT_DEAUTH) 1770 wpa_printf(MSG_DEBUG, "nl80211: Unprot Deauthenticate event"); 1771 else 1772 wpa_printf(MSG_DEBUG, "nl80211: Unprot Disassociate event"); 1773 1774 if (len < 24) 1775 return; 1776 1777 mgmt = (const struct ieee80211_mgmt *) frame; 1778 1779 os_memset(&event, 0, sizeof(event)); 1780 /* Note: Same offset for Reason Code in both frame subtypes */ 1781 if (len >= 24 + sizeof(mgmt->u.deauth)) 1782 reason_code = le_to_host16(mgmt->u.deauth.reason_code); 1783 1784 if (type == EVENT_UNPROT_DISASSOC) { 1785 event.unprot_disassoc.sa = mgmt->sa; 1786 event.unprot_disassoc.da = mgmt->da; 1787 event.unprot_disassoc.reason_code = reason_code; 1788 } else { 1789 event.unprot_deauth.sa = mgmt->sa; 1790 event.unprot_deauth.da = mgmt->da; 1791 event.unprot_deauth.reason_code = reason_code; 1792 } 1793 1794 wpa_supplicant_event(drv->ctx, type, &event); 1795} 1796 1797 1798static void mlme_event(struct i802_bss *bss, 1799 enum nl80211_commands cmd, struct nlattr *frame, 1800 struct nlattr *addr, struct nlattr *timed_out, 1801 struct nlattr *freq, struct nlattr *ack, 1802 struct nlattr *cookie, struct nlattr *sig) 1803{ 1804 struct wpa_driver_nl80211_data *drv = bss->drv; 1805 const u8 *data; 1806 size_t len; 1807 1808 if (timed_out && addr) { 1809 mlme_timeout_event(drv, cmd, addr); 1810 return; 1811 } 1812 1813 if (frame == NULL) { 1814 wpa_printf(MSG_DEBUG, 1815 "nl80211: MLME event %d (%s) without frame data", 1816 cmd, nl80211_command_to_string(cmd)); 1817 return; 1818 } 1819 1820 data = nla_data(frame); 1821 len = nla_len(frame); 1822 if (len < 4 + 2 * ETH_ALEN) { 1823 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" 1824 MACSTR ") - too short", 1825 cmd, nl80211_command_to_string(cmd), bss->ifname, 1826 MAC2STR(bss->addr)); 1827 return; 1828 } 1829 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" MACSTR 1830 ") A1=" MACSTR " A2=" MACSTR, cmd, 1831 nl80211_command_to_string(cmd), bss->ifname, 1832 MAC2STR(bss->addr), MAC2STR(data + 4), 1833 MAC2STR(data + 4 + ETH_ALEN)); 1834 if (cmd != NL80211_CMD_FRAME_TX_STATUS && !(data[4] & 0x01) && 1835 os_memcmp(bss->addr, data + 4, ETH_ALEN) != 0 && 1836 os_memcmp(bss->addr, data + 4 + ETH_ALEN, ETH_ALEN) != 0) { 1837 wpa_printf(MSG_MSGDUMP, "nl80211: %s: Ignore MLME frame event " 1838 "for foreign address", bss->ifname); 1839 return; 1840 } 1841 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame", 1842 nla_data(frame), nla_len(frame)); 1843 1844 switch (cmd) { 1845 case NL80211_CMD_AUTHENTICATE: 1846 mlme_event_auth(drv, nla_data(frame), nla_len(frame)); 1847 break; 1848 case NL80211_CMD_ASSOCIATE: 1849 mlme_event_assoc(drv, nla_data(frame), nla_len(frame)); 1850 break; 1851 case NL80211_CMD_DEAUTHENTICATE: 1852 mlme_event_deauth_disassoc(drv, EVENT_DEAUTH, 1853 nla_data(frame), nla_len(frame)); 1854 break; 1855 case NL80211_CMD_DISASSOCIATE: 1856 mlme_event_deauth_disassoc(drv, EVENT_DISASSOC, 1857 nla_data(frame), nla_len(frame)); 1858 break; 1859 case NL80211_CMD_FRAME: 1860 mlme_event_mgmt(drv, freq, sig, nla_data(frame), 1861 nla_len(frame)); 1862 break; 1863 case NL80211_CMD_FRAME_TX_STATUS: 1864 mlme_event_mgmt_tx_status(drv, cookie, nla_data(frame), 1865 nla_len(frame), ack); 1866 break; 1867 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 1868 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH, 1869 nla_data(frame), nla_len(frame)); 1870 break; 1871 case NL80211_CMD_UNPROT_DISASSOCIATE: 1872 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC, 1873 nla_data(frame), nla_len(frame)); 1874 break; 1875 default: 1876 break; 1877 } 1878} 1879 1880 1881static void mlme_event_michael_mic_failure(struct i802_bss *bss, 1882 struct nlattr *tb[]) 1883{ 1884 union wpa_event_data data; 1885 1886 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure"); 1887 os_memset(&data, 0, sizeof(data)); 1888 if (tb[NL80211_ATTR_MAC]) { 1889 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address", 1890 nla_data(tb[NL80211_ATTR_MAC]), 1891 nla_len(tb[NL80211_ATTR_MAC])); 1892 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]); 1893 } 1894 if (tb[NL80211_ATTR_KEY_SEQ]) { 1895 wpa_hexdump(MSG_DEBUG, "nl80211: TSC", 1896 nla_data(tb[NL80211_ATTR_KEY_SEQ]), 1897 nla_len(tb[NL80211_ATTR_KEY_SEQ])); 1898 } 1899 if (tb[NL80211_ATTR_KEY_TYPE]) { 1900 enum nl80211_key_type key_type = 1901 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]); 1902 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type); 1903 if (key_type == NL80211_KEYTYPE_PAIRWISE) 1904 data.michael_mic_failure.unicast = 1; 1905 } else 1906 data.michael_mic_failure.unicast = 1; 1907 1908 if (tb[NL80211_ATTR_KEY_IDX]) { 1909 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]); 1910 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id); 1911 } 1912 1913 wpa_supplicant_event(bss->ctx, EVENT_MICHAEL_MIC_FAILURE, &data); 1914} 1915 1916 1917static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv, 1918 struct nlattr *tb[]) 1919{ 1920 if (tb[NL80211_ATTR_MAC] == NULL) { 1921 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined " 1922 "event"); 1923 return; 1924 } 1925 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 1926 1927 drv->associated = 1; 1928 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined", 1929 MAC2STR(drv->bssid)); 1930 1931 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL); 1932} 1933 1934 1935static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv, 1936 int cancel_event, struct nlattr *tb[]) 1937{ 1938 unsigned int freq, chan_type, duration; 1939 union wpa_event_data data; 1940 u64 cookie; 1941 1942 if (tb[NL80211_ATTR_WIPHY_FREQ]) 1943 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); 1944 else 1945 freq = 0; 1946 1947 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) 1948 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); 1949 else 1950 chan_type = 0; 1951 1952 if (tb[NL80211_ATTR_DURATION]) 1953 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]); 1954 else 1955 duration = 0; 1956 1957 if (tb[NL80211_ATTR_COOKIE]) 1958 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 1959 else 1960 cookie = 0; 1961 1962 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d " 1963 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))", 1964 cancel_event, freq, chan_type, duration, 1965 (long long unsigned int) cookie, 1966 cookie == drv->remain_on_chan_cookie ? "match" : "unknown"); 1967 1968 if (cookie != drv->remain_on_chan_cookie) 1969 return; /* not for us */ 1970 1971 if (cancel_event) 1972 drv->pending_remain_on_chan = 0; 1973 1974 os_memset(&data, 0, sizeof(data)); 1975 data.remain_on_channel.freq = freq; 1976 data.remain_on_channel.duration = duration; 1977 wpa_supplicant_event(drv->ctx, cancel_event ? 1978 EVENT_CANCEL_REMAIN_ON_CHANNEL : 1979 EVENT_REMAIN_ON_CHANNEL, &data); 1980} 1981 1982 1983static void mlme_event_ft_event(struct wpa_driver_nl80211_data *drv, 1984 struct nlattr *tb[]) 1985{ 1986 union wpa_event_data data; 1987 1988 os_memset(&data, 0, sizeof(data)); 1989 1990 if (tb[NL80211_ATTR_IE]) { 1991 data.ft_ies.ies = nla_data(tb[NL80211_ATTR_IE]); 1992 data.ft_ies.ies_len = nla_len(tb[NL80211_ATTR_IE]); 1993 } 1994 1995 if (tb[NL80211_ATTR_IE_RIC]) { 1996 data.ft_ies.ric_ies = nla_data(tb[NL80211_ATTR_IE_RIC]); 1997 data.ft_ies.ric_ies_len = nla_len(tb[NL80211_ATTR_IE_RIC]); 1998 } 1999 2000 if (tb[NL80211_ATTR_MAC]) 2001 os_memcpy(data.ft_ies.target_ap, 2002 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2003 2004 wpa_printf(MSG_DEBUG, "nl80211: FT event target_ap " MACSTR, 2005 MAC2STR(data.ft_ies.target_ap)); 2006 2007 wpa_supplicant_event(drv->ctx, EVENT_FT_RESPONSE, &data); 2008} 2009 2010 2011static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted, 2012 struct nlattr *tb[]) 2013{ 2014 union wpa_event_data event; 2015 struct nlattr *nl; 2016 int rem; 2017 struct scan_info *info; 2018#define MAX_REPORT_FREQS 50 2019 int freqs[MAX_REPORT_FREQS]; 2020 int num_freqs = 0; 2021 2022 if (drv->scan_for_auth) { 2023 drv->scan_for_auth = 0; 2024 wpa_printf(MSG_DEBUG, "nl80211: Scan results for missing " 2025 "cfg80211 BSS entry"); 2026 wpa_driver_nl80211_authenticate_retry(drv); 2027 return; 2028 } 2029 2030 os_memset(&event, 0, sizeof(event)); 2031 info = &event.scan_info; 2032 info->aborted = aborted; 2033 2034 if (tb[NL80211_ATTR_SCAN_SSIDS]) { 2035 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) { 2036 struct wpa_driver_scan_ssid *s = 2037 &info->ssids[info->num_ssids]; 2038 s->ssid = nla_data(nl); 2039 s->ssid_len = nla_len(nl); 2040 info->num_ssids++; 2041 if (info->num_ssids == WPAS_MAX_SCAN_SSIDS) 2042 break; 2043 } 2044 } 2045 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) { 2046 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem) 2047 { 2048 freqs[num_freqs] = nla_get_u32(nl); 2049 num_freqs++; 2050 if (num_freqs == MAX_REPORT_FREQS - 1) 2051 break; 2052 } 2053 info->freqs = freqs; 2054 info->num_freqs = num_freqs; 2055 } 2056 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event); 2057} 2058 2059 2060static int get_link_signal(struct nl_msg *msg, void *arg) 2061{ 2062 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2063 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2064 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1]; 2065 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = { 2066 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 }, 2067 [NL80211_STA_INFO_SIGNAL_AVG] = { .type = NLA_U8 }, 2068 }; 2069 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1]; 2070 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = { 2071 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 }, 2072 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 }, 2073 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG }, 2074 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG }, 2075 }; 2076 struct wpa_signal_info *sig_change = arg; 2077 2078 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2079 genlmsg_attrlen(gnlh, 0), NULL); 2080 if (!tb[NL80211_ATTR_STA_INFO] || 2081 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX, 2082 tb[NL80211_ATTR_STA_INFO], policy)) 2083 return NL_SKIP; 2084 if (!sinfo[NL80211_STA_INFO_SIGNAL]) 2085 return NL_SKIP; 2086 2087 sig_change->current_signal = 2088 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]); 2089 2090 if (sinfo[NL80211_STA_INFO_SIGNAL_AVG]) 2091 sig_change->avg_signal = 2092 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL_AVG]); 2093 else 2094 sig_change->avg_signal = 0; 2095 2096 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) { 2097 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX, 2098 sinfo[NL80211_STA_INFO_TX_BITRATE], 2099 rate_policy)) { 2100 sig_change->current_txrate = 0; 2101 } else { 2102 if (rinfo[NL80211_RATE_INFO_BITRATE]) { 2103 sig_change->current_txrate = 2104 nla_get_u16(rinfo[ 2105 NL80211_RATE_INFO_BITRATE]) * 100; 2106 } 2107 } 2108 } 2109 2110 return NL_SKIP; 2111} 2112 2113 2114static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv, 2115 struct wpa_signal_info *sig) 2116{ 2117 struct nl_msg *msg; 2118 2119 sig->current_signal = -9999; 2120 sig->current_txrate = 0; 2121 2122 msg = nlmsg_alloc(); 2123 if (!msg) 2124 return -ENOMEM; 2125 2126 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 2127 2128 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2129 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 2130 2131 return send_and_recv_msgs(drv, msg, get_link_signal, sig); 2132 nla_put_failure: 2133 nlmsg_free(msg); 2134 return -ENOBUFS; 2135} 2136 2137 2138static int get_link_noise(struct nl_msg *msg, void *arg) 2139{ 2140 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2141 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2142 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 2143 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 2144 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 2145 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 2146 }; 2147 struct wpa_signal_info *sig_change = arg; 2148 2149 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2150 genlmsg_attrlen(gnlh, 0), NULL); 2151 2152 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 2153 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!"); 2154 return NL_SKIP; 2155 } 2156 2157 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 2158 tb[NL80211_ATTR_SURVEY_INFO], 2159 survey_policy)) { 2160 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested " 2161 "attributes!"); 2162 return NL_SKIP; 2163 } 2164 2165 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 2166 return NL_SKIP; 2167 2168 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 2169 sig_change->frequency) 2170 return NL_SKIP; 2171 2172 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 2173 return NL_SKIP; 2174 2175 sig_change->current_noise = 2176 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 2177 2178 return NL_SKIP; 2179} 2180 2181 2182static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv, 2183 struct wpa_signal_info *sig_change) 2184{ 2185 struct nl_msg *msg; 2186 2187 sig_change->current_noise = 9999; 2188 sig_change->frequency = drv->assoc_freq; 2189 2190 msg = nlmsg_alloc(); 2191 if (!msg) 2192 return -ENOMEM; 2193 2194 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 2195 2196 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2197 2198 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change); 2199 nla_put_failure: 2200 nlmsg_free(msg); 2201 return -ENOBUFS; 2202} 2203 2204 2205static int get_noise_for_scan_results(struct nl_msg *msg, void *arg) 2206{ 2207 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2208 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2209 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 2210 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 2211 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 2212 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 2213 }; 2214 struct wpa_scan_results *scan_results = arg; 2215 struct wpa_scan_res *scan_res; 2216 size_t i; 2217 2218 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2219 genlmsg_attrlen(gnlh, 0), NULL); 2220 2221 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 2222 wpa_printf(MSG_DEBUG, "nl80211: Survey data missing"); 2223 return NL_SKIP; 2224 } 2225 2226 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 2227 tb[NL80211_ATTR_SURVEY_INFO], 2228 survey_policy)) { 2229 wpa_printf(MSG_DEBUG, "nl80211: Failed to parse nested " 2230 "attributes"); 2231 return NL_SKIP; 2232 } 2233 2234 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 2235 return NL_SKIP; 2236 2237 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 2238 return NL_SKIP; 2239 2240 for (i = 0; i < scan_results->num; ++i) { 2241 scan_res = scan_results->res[i]; 2242 if (!scan_res) 2243 continue; 2244 if ((int) nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 2245 scan_res->freq) 2246 continue; 2247 if (!(scan_res->flags & WPA_SCAN_NOISE_INVALID)) 2248 continue; 2249 scan_res->noise = (s8) 2250 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 2251 scan_res->flags &= ~WPA_SCAN_NOISE_INVALID; 2252 } 2253 2254 return NL_SKIP; 2255} 2256 2257 2258static int nl80211_get_noise_for_scan_results( 2259 struct wpa_driver_nl80211_data *drv, 2260 struct wpa_scan_results *scan_res) 2261{ 2262 struct nl_msg *msg; 2263 2264 msg = nlmsg_alloc(); 2265 if (!msg) 2266 return -ENOMEM; 2267 2268 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 2269 2270 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2271 2272 return send_and_recv_msgs(drv, msg, get_noise_for_scan_results, 2273 scan_res); 2274 nla_put_failure: 2275 nlmsg_free(msg); 2276 return -ENOBUFS; 2277} 2278 2279 2280static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv, 2281 struct nlattr *tb[]) 2282{ 2283 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = { 2284 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, 2285 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 }, 2286 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, 2287 [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 }, 2288 }; 2289 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1]; 2290 enum nl80211_cqm_rssi_threshold_event event; 2291 union wpa_event_data ed; 2292 struct wpa_signal_info sig; 2293 int res; 2294 2295 if (tb[NL80211_ATTR_CQM] == NULL || 2296 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM], 2297 cqm_policy)) { 2298 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event"); 2299 return; 2300 } 2301 2302 os_memset(&ed, 0, sizeof(ed)); 2303 2304 if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) { 2305 if (!tb[NL80211_ATTR_MAC]) 2306 return; 2307 os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]), 2308 ETH_ALEN); 2309 wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed); 2310 return; 2311 } 2312 2313 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL) 2314 return; 2315 event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]); 2316 2317 if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) { 2318 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 2319 "event: RSSI high"); 2320 ed.signal_change.above_threshold = 1; 2321 } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) { 2322 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 2323 "event: RSSI low"); 2324 ed.signal_change.above_threshold = 0; 2325 } else 2326 return; 2327 2328 res = nl80211_get_link_signal(drv, &sig); 2329 if (res == 0) { 2330 ed.signal_change.current_signal = sig.current_signal; 2331 ed.signal_change.current_txrate = sig.current_txrate; 2332 wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d", 2333 sig.current_signal, sig.current_txrate); 2334 } 2335 2336 res = nl80211_get_link_noise(drv, &sig); 2337 if (res == 0) { 2338 ed.signal_change.current_noise = sig.current_noise; 2339 wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm", 2340 sig.current_noise); 2341 } 2342 2343 wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed); 2344} 2345 2346 2347static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv, 2348 struct nlattr **tb) 2349{ 2350 u8 *addr; 2351 union wpa_event_data data; 2352 2353 if (tb[NL80211_ATTR_MAC] == NULL) 2354 return; 2355 addr = nla_data(tb[NL80211_ATTR_MAC]); 2356 wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr)); 2357 2358 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2359 u8 *ies = NULL; 2360 size_t ies_len = 0; 2361 if (tb[NL80211_ATTR_IE]) { 2362 ies = nla_data(tb[NL80211_ATTR_IE]); 2363 ies_len = nla_len(tb[NL80211_ATTR_IE]); 2364 } 2365 wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len); 2366 drv_event_assoc(drv->ctx, addr, ies, ies_len, 0); 2367 return; 2368 } 2369 2370 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2371 return; 2372 2373 os_memset(&data, 0, sizeof(data)); 2374 os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN); 2375 wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data); 2376} 2377 2378 2379static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv, 2380 struct nlattr **tb) 2381{ 2382 u8 *addr; 2383 union wpa_event_data data; 2384 2385 if (tb[NL80211_ATTR_MAC] == NULL) 2386 return; 2387 addr = nla_data(tb[NL80211_ATTR_MAC]); 2388 wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR, 2389 MAC2STR(addr)); 2390 2391 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2392 drv_event_disassoc(drv->ctx, addr); 2393 return; 2394 } 2395 2396 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2397 return; 2398 2399 os_memset(&data, 0, sizeof(data)); 2400 os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN); 2401 wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data); 2402} 2403 2404 2405static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv, 2406 struct nlattr **tb) 2407{ 2408 struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA]; 2409 static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = { 2410 [NL80211_REKEY_DATA_KEK] = { 2411 .minlen = NL80211_KEK_LEN, 2412 .maxlen = NL80211_KEK_LEN, 2413 }, 2414 [NL80211_REKEY_DATA_KCK] = { 2415 .minlen = NL80211_KCK_LEN, 2416 .maxlen = NL80211_KCK_LEN, 2417 }, 2418 [NL80211_REKEY_DATA_REPLAY_CTR] = { 2419 .minlen = NL80211_REPLAY_CTR_LEN, 2420 .maxlen = NL80211_REPLAY_CTR_LEN, 2421 }, 2422 }; 2423 union wpa_event_data data; 2424 2425 if (!tb[NL80211_ATTR_MAC]) 2426 return; 2427 if (!tb[NL80211_ATTR_REKEY_DATA]) 2428 return; 2429 if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA, 2430 tb[NL80211_ATTR_REKEY_DATA], rekey_policy)) 2431 return; 2432 if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]) 2433 return; 2434 2435 os_memset(&data, 0, sizeof(data)); 2436 data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]); 2437 wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR, 2438 MAC2STR(data.driver_gtk_rekey.bssid)); 2439 data.driver_gtk_rekey.replay_ctr = 2440 nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]); 2441 wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter", 2442 data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN); 2443 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data); 2444} 2445 2446 2447static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv, 2448 struct nlattr **tb) 2449{ 2450 struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE]; 2451 static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = { 2452 [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 }, 2453 [NL80211_PMKSA_CANDIDATE_BSSID] = { 2454 .minlen = ETH_ALEN, 2455 .maxlen = ETH_ALEN, 2456 }, 2457 [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG }, 2458 }; 2459 union wpa_event_data data; 2460 2461 wpa_printf(MSG_DEBUG, "nl80211: PMKSA candidate event"); 2462 2463 if (!tb[NL80211_ATTR_PMKSA_CANDIDATE]) 2464 return; 2465 if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE, 2466 tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy)) 2467 return; 2468 if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] || 2469 !cand[NL80211_PMKSA_CANDIDATE_BSSID]) 2470 return; 2471 2472 os_memset(&data, 0, sizeof(data)); 2473 os_memcpy(data.pmkid_candidate.bssid, 2474 nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN); 2475 data.pmkid_candidate.index = 2476 nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]); 2477 data.pmkid_candidate.preauth = 2478 cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL; 2479 wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data); 2480} 2481 2482 2483static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv, 2484 struct nlattr **tb) 2485{ 2486 union wpa_event_data data; 2487 2488 wpa_printf(MSG_DEBUG, "nl80211: Probe client event"); 2489 2490 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_ACK]) 2491 return; 2492 2493 os_memset(&data, 0, sizeof(data)); 2494 os_memcpy(data.client_poll.addr, 2495 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2496 2497 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_CLIENT_POLL_OK, &data); 2498} 2499 2500 2501static void nl80211_tdls_oper_event(struct wpa_driver_nl80211_data *drv, 2502 struct nlattr **tb) 2503{ 2504 union wpa_event_data data; 2505 2506 wpa_printf(MSG_DEBUG, "nl80211: TDLS operation event"); 2507 2508 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_TDLS_OPERATION]) 2509 return; 2510 2511 os_memset(&data, 0, sizeof(data)); 2512 os_memcpy(data.tdls.peer, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2513 switch (nla_get_u8(tb[NL80211_ATTR_TDLS_OPERATION])) { 2514 case NL80211_TDLS_SETUP: 2515 wpa_printf(MSG_DEBUG, "nl80211: TDLS setup request for peer " 2516 MACSTR, MAC2STR(data.tdls.peer)); 2517 data.tdls.oper = TDLS_REQUEST_SETUP; 2518 break; 2519 case NL80211_TDLS_TEARDOWN: 2520 wpa_printf(MSG_DEBUG, "nl80211: TDLS teardown request for peer " 2521 MACSTR, MAC2STR(data.tdls.peer)); 2522 data.tdls.oper = TDLS_REQUEST_TEARDOWN; 2523 break; 2524 default: 2525 wpa_printf(MSG_DEBUG, "nl80211: Unsupported TDLS operatione " 2526 "event"); 2527 return; 2528 } 2529 if (tb[NL80211_ATTR_REASON_CODE]) { 2530 data.tdls.reason_code = 2531 nla_get_u16(tb[NL80211_ATTR_REASON_CODE]); 2532 } 2533 2534 wpa_supplicant_event(drv->ctx, EVENT_TDLS, &data); 2535} 2536 2537 2538static void nl80211_stop_ap(struct wpa_driver_nl80211_data *drv, 2539 struct nlattr **tb) 2540{ 2541 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_UNAVAILABLE, NULL); 2542} 2543 2544 2545static void nl80211_connect_failed_event(struct wpa_driver_nl80211_data *drv, 2546 struct nlattr **tb) 2547{ 2548 union wpa_event_data data; 2549 u32 reason; 2550 2551 wpa_printf(MSG_DEBUG, "nl80211: Connect failed event"); 2552 2553 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_CONN_FAILED_REASON]) 2554 return; 2555 2556 os_memset(&data, 0, sizeof(data)); 2557 os_memcpy(data.connect_failed_reason.addr, 2558 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2559 2560 reason = nla_get_u32(tb[NL80211_ATTR_CONN_FAILED_REASON]); 2561 switch (reason) { 2562 case NL80211_CONN_FAIL_MAX_CLIENTS: 2563 wpa_printf(MSG_DEBUG, "nl80211: Max client reached"); 2564 data.connect_failed_reason.code = MAX_CLIENT_REACHED; 2565 break; 2566 case NL80211_CONN_FAIL_BLOCKED_CLIENT: 2567 wpa_printf(MSG_DEBUG, "nl80211: Blocked client " MACSTR 2568 " tried to connect", 2569 MAC2STR(data.connect_failed_reason.addr)); 2570 data.connect_failed_reason.code = BLOCKED_CLIENT; 2571 break; 2572 default: 2573 wpa_printf(MSG_DEBUG, "nl8021l: Unknown connect failed reason " 2574 "%u", reason); 2575 return; 2576 } 2577 2578 wpa_supplicant_event(drv->ctx, EVENT_CONNECT_FAILED_REASON, &data); 2579} 2580 2581 2582static void nl80211_radar_event(struct wpa_driver_nl80211_data *drv, 2583 struct nlattr **tb) 2584{ 2585 union wpa_event_data data; 2586 enum nl80211_radar_event event_type; 2587 2588 if (!tb[NL80211_ATTR_WIPHY_FREQ] || !tb[NL80211_ATTR_RADAR_EVENT]) 2589 return; 2590 2591 os_memset(&data, 0, sizeof(data)); 2592 data.dfs_event.freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); 2593 event_type = nla_get_u32(tb[NL80211_ATTR_RADAR_EVENT]); 2594 2595 /* Check HT params */ 2596 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { 2597 data.dfs_event.ht_enabled = 1; 2598 data.dfs_event.chan_offset = 0; 2599 2600 switch (nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])) { 2601 case NL80211_CHAN_NO_HT: 2602 data.dfs_event.ht_enabled = 0; 2603 break; 2604 case NL80211_CHAN_HT20: 2605 break; 2606 case NL80211_CHAN_HT40PLUS: 2607 data.dfs_event.chan_offset = 1; 2608 break; 2609 case NL80211_CHAN_HT40MINUS: 2610 data.dfs_event.chan_offset = -1; 2611 break; 2612 } 2613 } 2614 2615 /* Get VHT params */ 2616 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) 2617 data.dfs_event.chan_width = 2618 convert2width(nla_get_u32( 2619 tb[NL80211_ATTR_CHANNEL_WIDTH])); 2620 if (tb[NL80211_ATTR_CENTER_FREQ1]) 2621 data.dfs_event.cf1 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); 2622 if (tb[NL80211_ATTR_CENTER_FREQ2]) 2623 data.dfs_event.cf2 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); 2624 2625 wpa_printf(MSG_DEBUG, "nl80211: DFS event on freq %d MHz, ht: %d, offset: %d, width: %d, cf1: %dMHz, cf2: %dMHz", 2626 data.dfs_event.freq, data.dfs_event.ht_enabled, 2627 data.dfs_event.chan_offset, data.dfs_event.chan_width, 2628 data.dfs_event.cf1, data.dfs_event.cf2); 2629 2630 switch (event_type) { 2631 case NL80211_RADAR_DETECTED: 2632 wpa_supplicant_event(drv->ctx, EVENT_DFS_RADAR_DETECTED, &data); 2633 break; 2634 case NL80211_RADAR_CAC_FINISHED: 2635 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_FINISHED, &data); 2636 break; 2637 case NL80211_RADAR_CAC_ABORTED: 2638 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_ABORTED, &data); 2639 break; 2640 case NL80211_RADAR_NOP_FINISHED: 2641 wpa_supplicant_event(drv->ctx, EVENT_DFS_NOP_FINISHED, &data); 2642 break; 2643 default: 2644 wpa_printf(MSG_DEBUG, "nl80211: Unknown radar event %d " 2645 "received", event_type); 2646 break; 2647 } 2648} 2649 2650 2651static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb, 2652 int wds) 2653{ 2654 struct wpa_driver_nl80211_data *drv = bss->drv; 2655 union wpa_event_data event; 2656 2657 if (!tb[NL80211_ATTR_MAC]) 2658 return; 2659 2660 os_memset(&event, 0, sizeof(event)); 2661 event.rx_from_unknown.bssid = bss->addr; 2662 event.rx_from_unknown.addr = nla_data(tb[NL80211_ATTR_MAC]); 2663 event.rx_from_unknown.wds = wds; 2664 2665 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 2666} 2667 2668 2669static void do_process_drv_event(struct i802_bss *bss, int cmd, 2670 struct nlattr **tb) 2671{ 2672 struct wpa_driver_nl80211_data *drv = bss->drv; 2673 union wpa_event_data data; 2674 2675 wpa_printf(MSG_DEBUG, "nl80211: Drv Event %d (%s) received for %s", 2676 cmd, nl80211_command_to_string(cmd), bss->ifname); 2677 2678 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED && 2679 (cmd == NL80211_CMD_NEW_SCAN_RESULTS || 2680 cmd == NL80211_CMD_SCAN_ABORTED)) { 2681 wpa_driver_nl80211_set_mode(drv->first_bss, 2682 drv->ap_scan_as_station); 2683 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 2684 } 2685 2686 switch (cmd) { 2687 case NL80211_CMD_TRIGGER_SCAN: 2688 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan trigger"); 2689 drv->scan_state = SCAN_STARTED; 2690 break; 2691 case NL80211_CMD_START_SCHED_SCAN: 2692 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan started"); 2693 drv->scan_state = SCHED_SCAN_STARTED; 2694 break; 2695 case NL80211_CMD_SCHED_SCAN_STOPPED: 2696 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan stopped"); 2697 drv->scan_state = SCHED_SCAN_STOPPED; 2698 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL); 2699 break; 2700 case NL80211_CMD_NEW_SCAN_RESULTS: 2701 wpa_dbg(drv->ctx, MSG_DEBUG, 2702 "nl80211: New scan results available"); 2703 drv->scan_state = SCAN_COMPLETED; 2704 drv->scan_complete_events = 1; 2705 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 2706 drv->ctx); 2707 send_scan_event(drv, 0, tb); 2708 break; 2709 case NL80211_CMD_SCHED_SCAN_RESULTS: 2710 wpa_dbg(drv->ctx, MSG_DEBUG, 2711 "nl80211: New sched scan results available"); 2712 drv->scan_state = SCHED_SCAN_RESULTS; 2713 send_scan_event(drv, 0, tb); 2714 break; 2715 case NL80211_CMD_SCAN_ABORTED: 2716 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan aborted"); 2717 drv->scan_state = SCAN_ABORTED; 2718 /* 2719 * Need to indicate that scan results are available in order 2720 * not to make wpa_supplicant stop its scanning. 2721 */ 2722 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 2723 drv->ctx); 2724 send_scan_event(drv, 1, tb); 2725 break; 2726 case NL80211_CMD_AUTHENTICATE: 2727 case NL80211_CMD_ASSOCIATE: 2728 case NL80211_CMD_DEAUTHENTICATE: 2729 case NL80211_CMD_DISASSOCIATE: 2730 case NL80211_CMD_FRAME_TX_STATUS: 2731 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 2732 case NL80211_CMD_UNPROT_DISASSOCIATE: 2733 mlme_event(bss, cmd, tb[NL80211_ATTR_FRAME], 2734 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 2735 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 2736 tb[NL80211_ATTR_COOKIE], 2737 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 2738 break; 2739 case NL80211_CMD_CONNECT: 2740 case NL80211_CMD_ROAM: 2741 mlme_event_connect(drv, cmd, 2742 tb[NL80211_ATTR_STATUS_CODE], 2743 tb[NL80211_ATTR_MAC], 2744 tb[NL80211_ATTR_REQ_IE], 2745 tb[NL80211_ATTR_RESP_IE]); 2746 break; 2747 case NL80211_CMD_CH_SWITCH_NOTIFY: 2748 mlme_event_ch_switch(drv, 2749 tb[NL80211_ATTR_IFINDEX], 2750 tb[NL80211_ATTR_WIPHY_FREQ], 2751 tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE], 2752 tb[NL80211_ATTR_CHANNEL_WIDTH], 2753 tb[NL80211_ATTR_CENTER_FREQ1], 2754 tb[NL80211_ATTR_CENTER_FREQ2]); 2755 break; 2756 case NL80211_CMD_DISCONNECT: 2757 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE], 2758 tb[NL80211_ATTR_MAC], 2759 tb[NL80211_ATTR_DISCONNECTED_BY_AP]); 2760 break; 2761 case NL80211_CMD_MICHAEL_MIC_FAILURE: 2762 mlme_event_michael_mic_failure(bss, tb); 2763 break; 2764 case NL80211_CMD_JOIN_IBSS: 2765 mlme_event_join_ibss(drv, tb); 2766 break; 2767 case NL80211_CMD_REMAIN_ON_CHANNEL: 2768 mlme_event_remain_on_channel(drv, 0, tb); 2769 break; 2770 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL: 2771 mlme_event_remain_on_channel(drv, 1, tb); 2772 break; 2773 case NL80211_CMD_NOTIFY_CQM: 2774 nl80211_cqm_event(drv, tb); 2775 break; 2776 case NL80211_CMD_REG_CHANGE: 2777 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change"); 2778 if (tb[NL80211_ATTR_REG_INITIATOR] == NULL) 2779 break; 2780 os_memset(&data, 0, sizeof(data)); 2781 switch (nla_get_u8(tb[NL80211_ATTR_REG_INITIATOR])) { 2782 case NL80211_REGDOM_SET_BY_CORE: 2783 data.channel_list_changed.initiator = 2784 REGDOM_SET_BY_CORE; 2785 break; 2786 case NL80211_REGDOM_SET_BY_USER: 2787 data.channel_list_changed.initiator = 2788 REGDOM_SET_BY_USER; 2789 break; 2790 case NL80211_REGDOM_SET_BY_DRIVER: 2791 data.channel_list_changed.initiator = 2792 REGDOM_SET_BY_DRIVER; 2793 break; 2794 case NL80211_REGDOM_SET_BY_COUNTRY_IE: 2795 data.channel_list_changed.initiator = 2796 REGDOM_SET_BY_COUNTRY_IE; 2797 break; 2798 default: 2799 wpa_printf(MSG_DEBUG, "nl80211: Unknown reg change initiator %d received", 2800 nla_get_u8(tb[NL80211_ATTR_REG_INITIATOR])); 2801 break; 2802 } 2803 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 2804 &data); 2805 break; 2806 case NL80211_CMD_REG_BEACON_HINT: 2807 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint"); 2808 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 2809 NULL); 2810 break; 2811 case NL80211_CMD_NEW_STATION: 2812 nl80211_new_station_event(drv, tb); 2813 break; 2814 case NL80211_CMD_DEL_STATION: 2815 nl80211_del_station_event(drv, tb); 2816 break; 2817 case NL80211_CMD_SET_REKEY_OFFLOAD: 2818 nl80211_rekey_offload_event(drv, tb); 2819 break; 2820 case NL80211_CMD_PMKSA_CANDIDATE: 2821 nl80211_pmksa_candidate_event(drv, tb); 2822 break; 2823 case NL80211_CMD_PROBE_CLIENT: 2824 nl80211_client_probe_event(drv, tb); 2825 break; 2826 case NL80211_CMD_TDLS_OPER: 2827 nl80211_tdls_oper_event(drv, tb); 2828 break; 2829 case NL80211_CMD_CONN_FAILED: 2830 nl80211_connect_failed_event(drv, tb); 2831 break; 2832 case NL80211_CMD_FT_EVENT: 2833 mlme_event_ft_event(drv, tb); 2834 break; 2835 case NL80211_CMD_RADAR_DETECT: 2836 nl80211_radar_event(drv, tb); 2837 break; 2838 case NL80211_CMD_STOP_AP: 2839 nl80211_stop_ap(drv, tb); 2840 break; 2841 default: 2842 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Ignored unknown event " 2843 "(cmd=%d)", cmd); 2844 break; 2845 } 2846} 2847 2848 2849static int process_drv_event(struct nl_msg *msg, void *arg) 2850{ 2851 struct wpa_driver_nl80211_data *drv = arg; 2852 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2853 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2854 struct i802_bss *bss; 2855 int ifidx = -1; 2856 2857 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2858 genlmsg_attrlen(gnlh, 0), NULL); 2859 2860 if (tb[NL80211_ATTR_IFINDEX]) { 2861 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 2862 2863 for (bss = drv->first_bss; bss; bss = bss->next) 2864 if (ifidx == -1 || ifidx == bss->ifindex) { 2865 do_process_drv_event(bss, gnlh->cmd, tb); 2866 return NL_SKIP; 2867 } 2868 wpa_printf(MSG_DEBUG, 2869 "nl80211: Ignored event (cmd=%d) for foreign interface (ifindex %d)", 2870 gnlh->cmd, ifidx); 2871 } else if (tb[NL80211_ATTR_WDEV]) { 2872 u64 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 2873 wpa_printf(MSG_DEBUG, "nl80211: Process event on P2P device"); 2874 for (bss = drv->first_bss; bss; bss = bss->next) { 2875 if (bss->wdev_id_set && wdev_id == bss->wdev_id) { 2876 do_process_drv_event(bss, gnlh->cmd, tb); 2877 return NL_SKIP; 2878 } 2879 } 2880 wpa_printf(MSG_DEBUG, 2881 "nl80211: Ignored event (cmd=%d) for foreign interface (wdev 0x%llx)", 2882 gnlh->cmd, (long long unsigned int) wdev_id); 2883 } 2884 2885 return NL_SKIP; 2886} 2887 2888 2889static int process_global_event(struct nl_msg *msg, void *arg) 2890{ 2891 struct nl80211_global *global = arg; 2892 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2893 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2894 struct wpa_driver_nl80211_data *drv, *tmp; 2895 int ifidx = -1; 2896 struct i802_bss *bss; 2897 u64 wdev_id = 0; 2898 int wdev_id_set = 0; 2899 2900 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2901 genlmsg_attrlen(gnlh, 0), NULL); 2902 2903 if (tb[NL80211_ATTR_IFINDEX]) 2904 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 2905 else if (tb[NL80211_ATTR_WDEV]) { 2906 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 2907 wdev_id_set = 1; 2908 } 2909 2910 dl_list_for_each_safe(drv, tmp, &global->interfaces, 2911 struct wpa_driver_nl80211_data, list) { 2912 for (bss = drv->first_bss; bss; bss = bss->next) { 2913 if ((ifidx == -1 && !wdev_id_set) || 2914 ifidx == bss->ifindex || 2915 (wdev_id_set && bss->wdev_id_set && 2916 wdev_id == bss->wdev_id)) { 2917 do_process_drv_event(bss, gnlh->cmd, tb); 2918 return NL_SKIP; 2919 } 2920 } 2921 } 2922 2923 return NL_SKIP; 2924} 2925 2926 2927static int process_bss_event(struct nl_msg *msg, void *arg) 2928{ 2929 struct i802_bss *bss = arg; 2930 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2931 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2932 2933 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2934 genlmsg_attrlen(gnlh, 0), NULL); 2935 2936 wpa_printf(MSG_DEBUG, "nl80211: BSS Event %d (%s) received for %s", 2937 gnlh->cmd, nl80211_command_to_string(gnlh->cmd), 2938 bss->ifname); 2939 2940 switch (gnlh->cmd) { 2941 case NL80211_CMD_FRAME: 2942 case NL80211_CMD_FRAME_TX_STATUS: 2943 mlme_event(bss, gnlh->cmd, tb[NL80211_ATTR_FRAME], 2944 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 2945 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 2946 tb[NL80211_ATTR_COOKIE], 2947 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 2948 break; 2949 case NL80211_CMD_UNEXPECTED_FRAME: 2950 nl80211_spurious_frame(bss, tb, 0); 2951 break; 2952 case NL80211_CMD_UNEXPECTED_4ADDR_FRAME: 2953 nl80211_spurious_frame(bss, tb, 1); 2954 break; 2955 default: 2956 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event " 2957 "(cmd=%d)", gnlh->cmd); 2958 break; 2959 } 2960 2961 return NL_SKIP; 2962} 2963 2964 2965static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx, 2966 void *handle) 2967{ 2968 struct nl_cb *cb = eloop_ctx; 2969 int res; 2970 2971 wpa_printf(MSG_MSGDUMP, "nl80211: Event message available"); 2972 2973 res = nl_recvmsgs(handle, cb); 2974 if (res) { 2975 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d", 2976 __func__, res); 2977 } 2978} 2979 2980 2981/** 2982 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain 2983 * @priv: driver_nl80211 private data 2984 * @alpha2_arg: country to which to switch to 2985 * Returns: 0 on success, -1 on failure 2986 * 2987 * This asks nl80211 to set the regulatory domain for given 2988 * country ISO / IEC alpha2. 2989 */ 2990static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg) 2991{ 2992 struct i802_bss *bss = priv; 2993 struct wpa_driver_nl80211_data *drv = bss->drv; 2994 char alpha2[3]; 2995 struct nl_msg *msg; 2996 2997 msg = nlmsg_alloc(); 2998 if (!msg) 2999 return -ENOMEM; 3000 3001 alpha2[0] = alpha2_arg[0]; 3002 alpha2[1] = alpha2_arg[1]; 3003 alpha2[2] = '\0'; 3004 3005 nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG); 3006 3007 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2); 3008 if (send_and_recv_msgs(drv, msg, NULL, NULL)) 3009 return -EINVAL; 3010 return 0; 3011nla_put_failure: 3012 nlmsg_free(msg); 3013 return -EINVAL; 3014} 3015 3016 3017static int nl80211_get_country(struct nl_msg *msg, void *arg) 3018{ 3019 char *alpha2 = arg; 3020 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 3021 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3022 3023 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3024 genlmsg_attrlen(gnlh, 0), NULL); 3025 if (!tb_msg[NL80211_ATTR_REG_ALPHA2]) { 3026 wpa_printf(MSG_DEBUG, "nl80211: No country information available"); 3027 return NL_SKIP; 3028 } 3029 os_strlcpy(alpha2, nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]), 3); 3030 return NL_SKIP; 3031} 3032 3033 3034static int wpa_driver_nl80211_get_country(void *priv, char *alpha2) 3035{ 3036 struct i802_bss *bss = priv; 3037 struct wpa_driver_nl80211_data *drv = bss->drv; 3038 struct nl_msg *msg; 3039 int ret; 3040 3041 msg = nlmsg_alloc(); 3042 if (!msg) 3043 return -ENOMEM; 3044 3045 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 3046 alpha2[0] = '\0'; 3047 ret = send_and_recv_msgs(drv, msg, nl80211_get_country, alpha2); 3048 if (!alpha2[0]) 3049 ret = -1; 3050 3051 return ret; 3052} 3053 3054 3055static int protocol_feature_handler(struct nl_msg *msg, void *arg) 3056{ 3057 u32 *feat = arg; 3058 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 3059 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3060 3061 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3062 genlmsg_attrlen(gnlh, 0), NULL); 3063 3064 if (tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]) 3065 *feat = nla_get_u32(tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]); 3066 3067 return NL_SKIP; 3068} 3069 3070 3071static u32 get_nl80211_protocol_features(struct wpa_driver_nl80211_data *drv) 3072{ 3073 u32 feat = 0; 3074 struct nl_msg *msg; 3075 3076 msg = nlmsg_alloc(); 3077 if (!msg) 3078 goto nla_put_failure; 3079 3080 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_PROTOCOL_FEATURES); 3081 if (send_and_recv_msgs(drv, msg, protocol_feature_handler, &feat) == 0) 3082 return feat; 3083 3084 msg = NULL; 3085nla_put_failure: 3086 nlmsg_free(msg); 3087 return 0; 3088} 3089 3090 3091struct wiphy_info_data { 3092 struct wpa_driver_nl80211_data *drv; 3093 struct wpa_driver_capa *capa; 3094 3095 unsigned int num_multichan_concurrent; 3096 3097 unsigned int error:1; 3098 unsigned int device_ap_sme:1; 3099 unsigned int poll_command_supported:1; 3100 unsigned int data_tx_status:1; 3101 unsigned int monitor_supported:1; 3102 unsigned int auth_supported:1; 3103 unsigned int connect_supported:1; 3104 unsigned int p2p_go_supported:1; 3105 unsigned int p2p_client_supported:1; 3106 unsigned int p2p_concurrent:1; 3107 unsigned int channel_switch_supported:1; 3108}; 3109 3110 3111static unsigned int probe_resp_offload_support(int supp_protocols) 3112{ 3113 unsigned int prot = 0; 3114 3115 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS) 3116 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS; 3117 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2) 3118 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2; 3119 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P) 3120 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P; 3121 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U) 3122 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING; 3123 3124 return prot; 3125} 3126 3127 3128static void wiphy_info_supported_iftypes(struct wiphy_info_data *info, 3129 struct nlattr *tb) 3130{ 3131 struct nlattr *nl_mode; 3132 int i; 3133 3134 if (tb == NULL) 3135 return; 3136 3137 nla_for_each_nested(nl_mode, tb, i) { 3138 switch (nla_type(nl_mode)) { 3139 case NL80211_IFTYPE_AP: 3140 info->capa->flags |= WPA_DRIVER_FLAGS_AP; 3141 break; 3142 case NL80211_IFTYPE_ADHOC: 3143 info->capa->flags |= WPA_DRIVER_FLAGS_IBSS; 3144 break; 3145 case NL80211_IFTYPE_P2P_DEVICE: 3146 info->capa->flags |= 3147 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 3148 break; 3149 case NL80211_IFTYPE_P2P_GO: 3150 info->p2p_go_supported = 1; 3151 break; 3152 case NL80211_IFTYPE_P2P_CLIENT: 3153 info->p2p_client_supported = 1; 3154 break; 3155 case NL80211_IFTYPE_MONITOR: 3156 info->monitor_supported = 1; 3157 break; 3158 } 3159 } 3160} 3161 3162 3163static int wiphy_info_iface_comb_process(struct wiphy_info_data *info, 3164 struct nlattr *nl_combi) 3165{ 3166 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB]; 3167 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT]; 3168 struct nlattr *nl_limit, *nl_mode; 3169 int err, rem_limit, rem_mode; 3170 int combination_has_p2p = 0, combination_has_mgd = 0; 3171 static struct nla_policy 3172 iface_combination_policy[NUM_NL80211_IFACE_COMB] = { 3173 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED }, 3174 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 }, 3175 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG }, 3176 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 }, 3177 [NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 }, 3178 }, 3179 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = { 3180 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED }, 3181 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 }, 3182 }; 3183 3184 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB, 3185 nl_combi, iface_combination_policy); 3186 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] || 3187 !tb_comb[NL80211_IFACE_COMB_MAXNUM] || 3188 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) 3189 return 0; /* broken combination */ 3190 3191 if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS]) 3192 info->capa->flags |= WPA_DRIVER_FLAGS_RADAR; 3193 3194 nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS], 3195 rem_limit) { 3196 err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT, 3197 nl_limit, iface_limit_policy); 3198 if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES]) 3199 return 0; /* broken combination */ 3200 3201 nla_for_each_nested(nl_mode, 3202 tb_limit[NL80211_IFACE_LIMIT_TYPES], 3203 rem_mode) { 3204 int ift = nla_type(nl_mode); 3205 if (ift == NL80211_IFTYPE_P2P_GO || 3206 ift == NL80211_IFTYPE_P2P_CLIENT) 3207 combination_has_p2p = 1; 3208 if (ift == NL80211_IFTYPE_STATION) 3209 combination_has_mgd = 1; 3210 } 3211 if (combination_has_p2p && combination_has_mgd) 3212 break; 3213 } 3214 3215 if (combination_has_p2p && combination_has_mgd) { 3216 info->p2p_concurrent = 1; 3217 info->num_multichan_concurrent = 3218 nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]); 3219 return 1; 3220 } 3221 3222 return 0; 3223} 3224 3225 3226static void wiphy_info_iface_comb(struct wiphy_info_data *info, 3227 struct nlattr *tb) 3228{ 3229 struct nlattr *nl_combi; 3230 int rem_combi; 3231 3232 if (tb == NULL) 3233 return; 3234 3235 nla_for_each_nested(nl_combi, tb, rem_combi) { 3236 if (wiphy_info_iface_comb_process(info, nl_combi) > 0) 3237 break; 3238 } 3239} 3240 3241 3242static void wiphy_info_supp_cmds(struct wiphy_info_data *info, 3243 struct nlattr *tb) 3244{ 3245 struct nlattr *nl_cmd; 3246 int i; 3247 3248 if (tb == NULL) 3249 return; 3250 3251 nla_for_each_nested(nl_cmd, tb, i) { 3252 switch (nla_get_u32(nl_cmd)) { 3253 case NL80211_CMD_AUTHENTICATE: 3254 info->auth_supported = 1; 3255 break; 3256 case NL80211_CMD_CONNECT: 3257 info->connect_supported = 1; 3258 break; 3259 case NL80211_CMD_START_SCHED_SCAN: 3260 info->capa->sched_scan_supported = 1; 3261 break; 3262 case NL80211_CMD_PROBE_CLIENT: 3263 info->poll_command_supported = 1; 3264 break; 3265 case NL80211_CMD_CHANNEL_SWITCH: 3266 info->channel_switch_supported = 1; 3267 break; 3268 } 3269 } 3270} 3271 3272 3273static void wiphy_info_max_roc(struct wpa_driver_capa *capa, 3274 struct nlattr *tb) 3275{ 3276 if (tb) 3277 capa->max_remain_on_chan = nla_get_u32(tb); 3278} 3279 3280 3281static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls, 3282 struct nlattr *ext_setup) 3283{ 3284 if (tdls == NULL) 3285 return; 3286 3287 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported"); 3288 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT; 3289 3290 if (ext_setup) { 3291 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup"); 3292 capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP; 3293 } 3294} 3295 3296 3297static void wiphy_info_feature_flags(struct wiphy_info_data *info, 3298 struct nlattr *tb) 3299{ 3300 u32 flags; 3301 struct wpa_driver_capa *capa = info->capa; 3302 3303 if (tb == NULL) 3304 return; 3305 3306 flags = nla_get_u32(tb); 3307 3308 if (flags & NL80211_FEATURE_SK_TX_STATUS) 3309 info->data_tx_status = 1; 3310 3311 if (flags & NL80211_FEATURE_INACTIVITY_TIMER) 3312 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER; 3313 3314 if (flags & NL80211_FEATURE_SAE) 3315 capa->flags |= WPA_DRIVER_FLAGS_SAE; 3316 3317 if (flags & NL80211_FEATURE_NEED_OBSS_SCAN) 3318 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN; 3319} 3320 3321 3322static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa, 3323 struct nlattr *tb) 3324{ 3325 u32 protocols; 3326 3327 if (tb == NULL) 3328 return; 3329 3330 protocols = nla_get_u32(tb); 3331 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP " 3332 "mode"); 3333 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD; 3334 capa->probe_resp_offloads = probe_resp_offload_support(protocols); 3335} 3336 3337 3338static int wiphy_info_handler(struct nl_msg *msg, void *arg) 3339{ 3340 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3341 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3342 struct wiphy_info_data *info = arg; 3343 struct wpa_driver_capa *capa = info->capa; 3344 struct wpa_driver_nl80211_data *drv = info->drv; 3345 3346 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3347 genlmsg_attrlen(gnlh, 0), NULL); 3348 3349 if (tb[NL80211_ATTR_WIPHY_NAME]) 3350 os_strlcpy(drv->phyname, 3351 nla_get_string(tb[NL80211_ATTR_WIPHY_NAME]), 3352 sizeof(drv->phyname)); 3353 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]) 3354 capa->max_scan_ssids = 3355 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]); 3356 3357 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]) 3358 capa->max_sched_scan_ssids = 3359 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]); 3360 3361 if (tb[NL80211_ATTR_MAX_MATCH_SETS]) 3362 capa->max_match_sets = 3363 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]); 3364 3365 if (tb[NL80211_ATTR_MAC_ACL_MAX]) 3366 capa->max_acl_mac_addrs = 3367 nla_get_u8(tb[NL80211_ATTR_MAC_ACL_MAX]); 3368 3369 wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]); 3370 wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]); 3371 wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]); 3372 3373 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) { 3374 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based " 3375 "off-channel TX"); 3376 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX; 3377 } 3378 3379 if (tb[NL80211_ATTR_ROAM_SUPPORT]) { 3380 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming"); 3381 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION; 3382 } 3383 3384 wiphy_info_max_roc(capa, 3385 tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]); 3386 3387 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD]) 3388 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD; 3389 3390 wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT], 3391 tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]); 3392 3393 if (tb[NL80211_ATTR_DEVICE_AP_SME]) 3394 info->device_ap_sme = 1; 3395 3396 wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]); 3397 wiphy_info_probe_resp_offload(capa, 3398 tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]); 3399 3400 if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] && 3401 drv->extended_capa == NULL) { 3402 drv->extended_capa = 3403 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3404 if (drv->extended_capa) { 3405 os_memcpy(drv->extended_capa, 3406 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 3407 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3408 drv->extended_capa_len = 3409 nla_len(tb[NL80211_ATTR_EXT_CAPA]); 3410 } 3411 drv->extended_capa_mask = 3412 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3413 if (drv->extended_capa_mask) { 3414 os_memcpy(drv->extended_capa_mask, 3415 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 3416 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3417 } else { 3418 os_free(drv->extended_capa); 3419 drv->extended_capa = NULL; 3420 drv->extended_capa_len = 0; 3421 } 3422 } 3423 3424 return NL_SKIP; 3425} 3426 3427 3428static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv, 3429 struct wiphy_info_data *info) 3430{ 3431 u32 feat; 3432 struct nl_msg *msg; 3433 3434 os_memset(info, 0, sizeof(*info)); 3435 info->capa = &drv->capa; 3436 info->drv = drv; 3437 3438 msg = nlmsg_alloc(); 3439 if (!msg) 3440 return -1; 3441 3442 feat = get_nl80211_protocol_features(drv); 3443 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 3444 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 3445 else 3446 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 3447 3448 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 3449 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 3450 goto nla_put_failure; 3451 3452 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info)) 3453 return -1; 3454 3455 if (info->auth_supported) 3456 drv->capa.flags |= WPA_DRIVER_FLAGS_SME; 3457 else if (!info->connect_supported) { 3458 wpa_printf(MSG_INFO, "nl80211: Driver does not support " 3459 "authentication/association or connect commands"); 3460 info->error = 1; 3461 } 3462 3463 if (info->p2p_go_supported && info->p2p_client_supported) 3464 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE; 3465 if (info->p2p_concurrent) { 3466 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 3467 "interface (driver advertised support)"); 3468 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 3469 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 3470 } 3471 if (info->num_multichan_concurrent > 1) { 3472 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel " 3473 "concurrent (driver advertised support)"); 3474 drv->capa.num_multichan_concurrent = 3475 info->num_multichan_concurrent; 3476 } 3477 3478 /* default to 5000 since early versions of mac80211 don't set it */ 3479 if (!drv->capa.max_remain_on_chan) 3480 drv->capa.max_remain_on_chan = 5000; 3481 3482 return 0; 3483nla_put_failure: 3484 nlmsg_free(msg); 3485 return -1; 3486} 3487 3488 3489static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv) 3490{ 3491 struct wiphy_info_data info; 3492 if (wpa_driver_nl80211_get_info(drv, &info)) 3493 return -1; 3494 3495 if (info.error) 3496 return -1; 3497 3498 drv->has_capability = 1; 3499 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */ 3500 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA | 3501 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK | 3502 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 | 3503 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK; 3504 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 | 3505 WPA_DRIVER_CAPA_ENC_WEP104 | 3506 WPA_DRIVER_CAPA_ENC_TKIP | 3507 WPA_DRIVER_CAPA_ENC_CCMP; 3508 drv->capa.auth = WPA_DRIVER_AUTH_OPEN | 3509 WPA_DRIVER_AUTH_SHARED | 3510 WPA_DRIVER_AUTH_LEAP; 3511 3512 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES; 3513 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE; 3514 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3515 3516 if (!info.device_ap_sme) { 3517 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS; 3518 3519 /* 3520 * No AP SME is currently assumed to also indicate no AP MLME 3521 * in the driver/firmware. 3522 */ 3523 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME; 3524 } 3525 3526 drv->device_ap_sme = info.device_ap_sme; 3527 drv->poll_command_supported = info.poll_command_supported; 3528 drv->data_tx_status = info.data_tx_status; 3529 drv->channel_switch_supported = info.channel_switch_supported; 3530 3531 /* 3532 * If poll command and tx status are supported, mac80211 is new enough 3533 * to have everything we need to not need monitor interfaces. 3534 */ 3535 drv->use_monitor = !info.poll_command_supported || !info.data_tx_status; 3536 3537 if (drv->device_ap_sme && drv->use_monitor) { 3538 /* 3539 * Non-mac80211 drivers may not support monitor interface. 3540 * Make sure we do not get stuck with incorrect capability here 3541 * by explicitly testing this. 3542 */ 3543 if (!info.monitor_supported) { 3544 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor " 3545 "with device_ap_sme since no monitor mode " 3546 "support detected"); 3547 drv->use_monitor = 0; 3548 } 3549 } 3550 3551 /* 3552 * If we aren't going to use monitor interfaces, but the 3553 * driver doesn't support data TX status, we won't get TX 3554 * status for EAPOL frames. 3555 */ 3556 if (!drv->use_monitor && !info.data_tx_status) 3557 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3558 3559 return 0; 3560} 3561 3562 3563#ifdef ANDROID 3564static int android_genl_ctrl_resolve(struct nl_handle *handle, 3565 const char *name) 3566{ 3567 /* 3568 * Android ICS has very minimal genl_ctrl_resolve() implementation, so 3569 * need to work around that. 3570 */ 3571 struct nl_cache *cache = NULL; 3572 struct genl_family *nl80211 = NULL; 3573 int id = -1; 3574 3575 if (genl_ctrl_alloc_cache(handle, &cache) < 0) { 3576 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic " 3577 "netlink cache"); 3578 goto fail; 3579 } 3580 3581 nl80211 = genl_ctrl_search_by_name(cache, name); 3582 if (nl80211 == NULL) 3583 goto fail; 3584 3585 id = genl_family_get_id(nl80211); 3586 3587fail: 3588 if (nl80211) 3589 genl_family_put(nl80211); 3590 if (cache) 3591 nl_cache_free(cache); 3592 3593 return id; 3594} 3595#define genl_ctrl_resolve android_genl_ctrl_resolve 3596#endif /* ANDROID */ 3597 3598 3599static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global) 3600{ 3601 int ret; 3602 3603 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3604 if (global->nl_cb == NULL) { 3605 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " 3606 "callbacks"); 3607 return -1; 3608 } 3609 3610 global->nl = nl_create_handle(global->nl_cb, "nl"); 3611 if (global->nl == NULL) 3612 goto err; 3613 3614 global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211"); 3615 if (global->nl80211_id < 0) { 3616 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not " 3617 "found"); 3618 goto err; 3619 } 3620 3621 global->nl_event = nl_create_handle(global->nl_cb, "event"); 3622 if (global->nl_event == NULL) 3623 goto err; 3624 3625 ret = nl_get_multicast_id(global, "nl80211", "scan"); 3626 if (ret >= 0) 3627 ret = nl_socket_add_membership(global->nl_event, ret); 3628 if (ret < 0) { 3629 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 3630 "membership for scan events: %d (%s)", 3631 ret, strerror(-ret)); 3632 goto err; 3633 } 3634 3635 ret = nl_get_multicast_id(global, "nl80211", "mlme"); 3636 if (ret >= 0) 3637 ret = nl_socket_add_membership(global->nl_event, ret); 3638 if (ret < 0) { 3639 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 3640 "membership for mlme events: %d (%s)", 3641 ret, strerror(-ret)); 3642 goto err; 3643 } 3644 3645 ret = nl_get_multicast_id(global, "nl80211", "regulatory"); 3646 if (ret >= 0) 3647 ret = nl_socket_add_membership(global->nl_event, ret); 3648 if (ret < 0) { 3649 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " 3650 "membership for regulatory events: %d (%s)", 3651 ret, strerror(-ret)); 3652 /* Continue without regulatory events */ 3653 } 3654 3655 nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3656 no_seq_check, NULL); 3657 nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3658 process_global_event, global); 3659 3660 nl80211_register_eloop_read(&global->nl_event, 3661 wpa_driver_nl80211_event_receive, 3662 global->nl_cb); 3663 3664 return 0; 3665 3666err: 3667 nl_destroy_handles(&global->nl_event); 3668 nl_destroy_handles(&global->nl); 3669 nl_cb_put(global->nl_cb); 3670 global->nl_cb = NULL; 3671 return -1; 3672} 3673 3674 3675static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv) 3676{ 3677 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3678 if (!drv->nl_cb) { 3679 wpa_printf(MSG_ERROR, "nl80211: Failed to alloc cb struct"); 3680 return -1; 3681 } 3682 3683 nl_cb_set(drv->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3684 no_seq_check, NULL); 3685 nl_cb_set(drv->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3686 process_drv_event, drv); 3687 3688 return 0; 3689} 3690 3691 3692static void wpa_driver_nl80211_rfkill_blocked(void *ctx) 3693{ 3694 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked"); 3695 /* 3696 * This may be for any interface; use ifdown event to disable 3697 * interface. 3698 */ 3699} 3700 3701 3702static void wpa_driver_nl80211_rfkill_unblocked(void *ctx) 3703{ 3704 struct wpa_driver_nl80211_data *drv = ctx; 3705 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked"); 3706 if (i802_set_iface_flags(drv->first_bss, 1)) { 3707 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP " 3708 "after rfkill unblock"); 3709 return; 3710 } 3711 /* rtnetlink ifup handler will report interface as enabled */ 3712} 3713 3714 3715static void wpa_driver_nl80211_handle_eapol_tx_status(int sock, 3716 void *eloop_ctx, 3717 void *handle) 3718{ 3719 struct wpa_driver_nl80211_data *drv = eloop_ctx; 3720 u8 data[2048]; 3721 struct msghdr msg; 3722 struct iovec entry; 3723 u8 control[512]; 3724 struct cmsghdr *cmsg; 3725 int res, found_ee = 0, found_wifi = 0, acked = 0; 3726 union wpa_event_data event; 3727 3728 memset(&msg, 0, sizeof(msg)); 3729 msg.msg_iov = &entry; 3730 msg.msg_iovlen = 1; 3731 entry.iov_base = data; 3732 entry.iov_len = sizeof(data); 3733 msg.msg_control = &control; 3734 msg.msg_controllen = sizeof(control); 3735 3736 res = recvmsg(sock, &msg, MSG_ERRQUEUE); 3737 /* if error or not fitting 802.3 header, return */ 3738 if (res < 14) 3739 return; 3740 3741 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) 3742 { 3743 if (cmsg->cmsg_level == SOL_SOCKET && 3744 cmsg->cmsg_type == SCM_WIFI_STATUS) { 3745 int *ack; 3746 3747 found_wifi = 1; 3748 ack = (void *)CMSG_DATA(cmsg); 3749 acked = *ack; 3750 } 3751 3752 if (cmsg->cmsg_level == SOL_PACKET && 3753 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) { 3754 struct sock_extended_err *err = 3755 (struct sock_extended_err *)CMSG_DATA(cmsg); 3756 3757 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS) 3758 found_ee = 1; 3759 } 3760 } 3761 3762 if (!found_ee || !found_wifi) 3763 return; 3764 3765 memset(&event, 0, sizeof(event)); 3766 event.eapol_tx_status.dst = data; 3767 event.eapol_tx_status.data = data + 14; 3768 event.eapol_tx_status.data_len = res - 14; 3769 event.eapol_tx_status.ack = acked; 3770 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event); 3771} 3772 3773 3774static int nl80211_init_bss(struct i802_bss *bss) 3775{ 3776 bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3777 if (!bss->nl_cb) 3778 return -1; 3779 3780 nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3781 no_seq_check, NULL); 3782 nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3783 process_bss_event, bss); 3784 3785 return 0; 3786} 3787 3788 3789static void nl80211_destroy_bss(struct i802_bss *bss) 3790{ 3791 nl_cb_put(bss->nl_cb); 3792 bss->nl_cb = NULL; 3793} 3794 3795 3796static void * wpa_driver_nl80211_drv_init(void *ctx, const char *ifname, 3797 void *global_priv, int hostapd, 3798 const u8 *set_addr) 3799{ 3800 struct wpa_driver_nl80211_data *drv; 3801 struct rfkill_config *rcfg; 3802 struct i802_bss *bss; 3803 3804 if (global_priv == NULL) 3805 return NULL; 3806 drv = os_zalloc(sizeof(*drv)); 3807 if (drv == NULL) 3808 return NULL; 3809 drv->global = global_priv; 3810 drv->ctx = ctx; 3811 drv->hostapd = !!hostapd; 3812 drv->eapol_sock = -1; 3813 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int); 3814 drv->if_indices = drv->default_if_indices; 3815 3816 drv->first_bss = os_zalloc(sizeof(*drv->first_bss)); 3817 if (!drv->first_bss) { 3818 os_free(drv); 3819 return NULL; 3820 } 3821 bss = drv->first_bss; 3822 bss->drv = drv; 3823 bss->ctx = ctx; 3824 3825 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname)); 3826 drv->monitor_ifidx = -1; 3827 drv->monitor_sock = -1; 3828 drv->eapol_tx_sock = -1; 3829 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 3830 3831 if (wpa_driver_nl80211_init_nl(drv)) { 3832 os_free(drv); 3833 return NULL; 3834 } 3835 3836 if (nl80211_init_bss(bss)) 3837 goto failed; 3838 3839 rcfg = os_zalloc(sizeof(*rcfg)); 3840 if (rcfg == NULL) 3841 goto failed; 3842 rcfg->ctx = drv; 3843 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname)); 3844 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked; 3845 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked; 3846 drv->rfkill = rfkill_init(rcfg); 3847 if (drv->rfkill == NULL) { 3848 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available"); 3849 os_free(rcfg); 3850 } 3851 3852 if (linux_iface_up(drv->global->ioctl_sock, ifname) > 0) 3853 drv->start_iface_up = 1; 3854 3855 if (wpa_driver_nl80211_finish_drv_init(drv, set_addr, 1)) 3856 goto failed; 3857 3858 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0); 3859 if (drv->eapol_tx_sock < 0) 3860 goto failed; 3861 3862 if (drv->data_tx_status) { 3863 int enabled = 1; 3864 3865 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS, 3866 &enabled, sizeof(enabled)) < 0) { 3867 wpa_printf(MSG_DEBUG, 3868 "nl80211: wifi status sockopt failed\n"); 3869 drv->data_tx_status = 0; 3870 if (!drv->use_monitor) 3871 drv->capa.flags &= 3872 ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3873 } else { 3874 eloop_register_read_sock(drv->eapol_tx_sock, 3875 wpa_driver_nl80211_handle_eapol_tx_status, 3876 drv, NULL); 3877 } 3878 } 3879 3880 if (drv->global) { 3881 dl_list_add(&drv->global->interfaces, &drv->list); 3882 drv->in_interface_list = 1; 3883 } 3884 3885 return bss; 3886 3887failed: 3888 wpa_driver_nl80211_deinit(bss); 3889 return NULL; 3890} 3891 3892 3893/** 3894 * wpa_driver_nl80211_init - Initialize nl80211 driver interface 3895 * @ctx: context to be used when calling wpa_supplicant functions, 3896 * e.g., wpa_supplicant_event() 3897 * @ifname: interface name, e.g., wlan0 3898 * @global_priv: private driver global data from global_init() 3899 * Returns: Pointer to private data, %NULL on failure 3900 */ 3901static void * wpa_driver_nl80211_init(void *ctx, const char *ifname, 3902 void *global_priv) 3903{ 3904 return wpa_driver_nl80211_drv_init(ctx, ifname, global_priv, 0, NULL); 3905} 3906 3907 3908static int nl80211_register_frame(struct i802_bss *bss, 3909 struct nl_handle *nl_handle, 3910 u16 type, const u8 *match, size_t match_len) 3911{ 3912 struct wpa_driver_nl80211_data *drv = bss->drv; 3913 struct nl_msg *msg; 3914 int ret = -1; 3915 3916 msg = nlmsg_alloc(); 3917 if (!msg) 3918 return -1; 3919 3920 wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x nl_handle=%p", 3921 type, nl_handle); 3922 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", 3923 match, match_len); 3924 3925 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION); 3926 3927 if (nl80211_set_iface_id(msg, bss) < 0) 3928 goto nla_put_failure; 3929 3930 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type); 3931 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match); 3932 3933 ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL); 3934 msg = NULL; 3935 if (ret) { 3936 wpa_printf(MSG_DEBUG, "nl80211: Register frame command " 3937 "failed (type=%u): ret=%d (%s)", 3938 type, ret, strerror(-ret)); 3939 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", 3940 match, match_len); 3941 goto nla_put_failure; 3942 } 3943 ret = 0; 3944nla_put_failure: 3945 nlmsg_free(msg); 3946 return ret; 3947} 3948 3949 3950static int nl80211_alloc_mgmt_handle(struct i802_bss *bss) 3951{ 3952 struct wpa_driver_nl80211_data *drv = bss->drv; 3953 3954 if (bss->nl_mgmt) { 3955 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting " 3956 "already on! (nl_mgmt=%p)", bss->nl_mgmt); 3957 return -1; 3958 } 3959 3960 bss->nl_mgmt = nl_create_handle(drv->nl_cb, "mgmt"); 3961 if (bss->nl_mgmt == NULL) 3962 return -1; 3963 3964 return 0; 3965} 3966 3967 3968static void nl80211_mgmt_handle_register_eloop(struct i802_bss *bss) 3969{ 3970 nl80211_register_eloop_read(&bss->nl_mgmt, 3971 wpa_driver_nl80211_event_receive, 3972 bss->nl_cb); 3973} 3974 3975 3976static int nl80211_register_action_frame(struct i802_bss *bss, 3977 const u8 *match, size_t match_len) 3978{ 3979 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4); 3980 return nl80211_register_frame(bss, bss->nl_mgmt, 3981 type, match, match_len); 3982} 3983 3984 3985static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss) 3986{ 3987 struct wpa_driver_nl80211_data *drv = bss->drv; 3988 3989 if (nl80211_alloc_mgmt_handle(bss)) 3990 return -1; 3991 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP " 3992 "handle %p", bss->nl_mgmt); 3993 3994 if (drv->nlmode == NL80211_IFTYPE_ADHOC) { 3995 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_AUTH << 4); 3996 3997 /* register for any AUTH message */ 3998 nl80211_register_frame(bss, bss->nl_mgmt, type, NULL, 0); 3999 } 4000 4001#ifdef CONFIG_INTERWORKING 4002 /* QoS Map Configure */ 4003 if (nl80211_register_action_frame(bss, (u8 *) "\x01\x04", 2) < 0) 4004 return -1; 4005#endif /* CONFIG_INTERWORKING */ 4006#if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING) 4007 /* GAS Initial Request */ 4008 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0) 4009 return -1; 4010 /* GAS Initial Response */ 4011 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0) 4012 return -1; 4013 /* GAS Comeback Request */ 4014 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0) 4015 return -1; 4016 /* GAS Comeback Response */ 4017 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0) 4018 return -1; 4019#endif /* CONFIG_P2P || CONFIG_INTERWORKING */ 4020#ifdef CONFIG_P2P 4021 /* P2P Public Action */ 4022 if (nl80211_register_action_frame(bss, 4023 (u8 *) "\x04\x09\x50\x6f\x9a\x09", 4024 6) < 0) 4025 return -1; 4026 /* P2P Action */ 4027 if (nl80211_register_action_frame(bss, 4028 (u8 *) "\x7f\x50\x6f\x9a\x09", 4029 5) < 0) 4030 return -1; 4031#endif /* CONFIG_P2P */ 4032#ifdef CONFIG_IEEE80211W 4033 /* SA Query Response */ 4034 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0) 4035 return -1; 4036#endif /* CONFIG_IEEE80211W */ 4037#ifdef CONFIG_TDLS 4038 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) { 4039 /* TDLS Discovery Response */ 4040 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) < 4041 0) 4042 return -1; 4043 } 4044#endif /* CONFIG_TDLS */ 4045 4046 /* FT Action frames */ 4047 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0) 4048 return -1; 4049 else 4050 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT | 4051 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK; 4052 4053 /* WNM - BSS Transition Management Request */ 4054 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0) 4055 return -1; 4056 /* WNM-Sleep Mode Response */ 4057 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x11", 2) < 0) 4058 return -1; 4059 4060 nl80211_mgmt_handle_register_eloop(bss); 4061 4062 return 0; 4063} 4064 4065 4066static int nl80211_register_spurious_class3(struct i802_bss *bss) 4067{ 4068 struct wpa_driver_nl80211_data *drv = bss->drv; 4069 struct nl_msg *msg; 4070 int ret = -1; 4071 4072 msg = nlmsg_alloc(); 4073 if (!msg) 4074 return -1; 4075 4076 nl80211_cmd(drv, msg, 0, NL80211_CMD_UNEXPECTED_FRAME); 4077 4078 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 4079 4080 ret = send_and_recv(drv->global, bss->nl_mgmt, msg, NULL, NULL); 4081 msg = NULL; 4082 if (ret) { 4083 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 " 4084 "failed: ret=%d (%s)", 4085 ret, strerror(-ret)); 4086 goto nla_put_failure; 4087 } 4088 ret = 0; 4089nla_put_failure: 4090 nlmsg_free(msg); 4091 return ret; 4092} 4093 4094 4095static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss) 4096{ 4097 static const int stypes[] = { 4098 WLAN_FC_STYPE_AUTH, 4099 WLAN_FC_STYPE_ASSOC_REQ, 4100 WLAN_FC_STYPE_REASSOC_REQ, 4101 WLAN_FC_STYPE_DISASSOC, 4102 WLAN_FC_STYPE_DEAUTH, 4103 WLAN_FC_STYPE_ACTION, 4104 WLAN_FC_STYPE_PROBE_REQ, 4105/* Beacon doesn't work as mac80211 doesn't currently allow 4106 * it, but it wouldn't really be the right thing anyway as 4107 * it isn't per interface ... maybe just dump the scan 4108 * results periodically for OLBC? 4109 */ 4110// WLAN_FC_STYPE_BEACON, 4111 }; 4112 unsigned int i; 4113 4114 if (nl80211_alloc_mgmt_handle(bss)) 4115 return -1; 4116 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 4117 "handle %p", bss->nl_mgmt); 4118 4119 for (i = 0; i < ARRAY_SIZE(stypes); i++) { 4120 if (nl80211_register_frame(bss, bss->nl_mgmt, 4121 (WLAN_FC_TYPE_MGMT << 2) | 4122 (stypes[i] << 4), 4123 NULL, 0) < 0) { 4124 goto out_err; 4125 } 4126 } 4127 4128 if (nl80211_register_spurious_class3(bss)) 4129 goto out_err; 4130 4131 if (nl80211_get_wiphy_data_ap(bss) == NULL) 4132 goto out_err; 4133 4134 nl80211_mgmt_handle_register_eloop(bss); 4135 return 0; 4136 4137out_err: 4138 nl_destroy_handles(&bss->nl_mgmt); 4139 return -1; 4140} 4141 4142 4143static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss) 4144{ 4145 if (nl80211_alloc_mgmt_handle(bss)) 4146 return -1; 4147 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 4148 "handle %p (device SME)", bss->nl_mgmt); 4149 4150 if (nl80211_register_frame(bss, bss->nl_mgmt, 4151 (WLAN_FC_TYPE_MGMT << 2) | 4152 (WLAN_FC_STYPE_ACTION << 4), 4153 NULL, 0) < 0) 4154 goto out_err; 4155 4156 nl80211_mgmt_handle_register_eloop(bss); 4157 return 0; 4158 4159out_err: 4160 nl_destroy_handles(&bss->nl_mgmt); 4161 return -1; 4162} 4163 4164 4165static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason) 4166{ 4167 if (bss->nl_mgmt == NULL) 4168 return; 4169 wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p " 4170 "(%s)", bss->nl_mgmt, reason); 4171 nl80211_destroy_eloop_handle(&bss->nl_mgmt); 4172 4173 nl80211_put_wiphy_data_ap(bss); 4174} 4175 4176 4177static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx) 4178{ 4179 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL); 4180} 4181 4182 4183static void nl80211_del_p2pdev(struct i802_bss *bss) 4184{ 4185 struct wpa_driver_nl80211_data *drv = bss->drv; 4186 struct nl_msg *msg; 4187 int ret; 4188 4189 msg = nlmsg_alloc(); 4190 if (!msg) 4191 return; 4192 4193 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 4194 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 4195 4196 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4197 msg = NULL; 4198 4199 wpa_printf(MSG_DEBUG, "nl80211: Delete P2P Device %s (0x%llx): %s", 4200 bss->ifname, (long long unsigned int) bss->wdev_id, 4201 strerror(-ret)); 4202 4203nla_put_failure: 4204 nlmsg_free(msg); 4205} 4206 4207 4208static int nl80211_set_p2pdev(struct i802_bss *bss, int start) 4209{ 4210 struct wpa_driver_nl80211_data *drv = bss->drv; 4211 struct nl_msg *msg; 4212 int ret = -1; 4213 4214 msg = nlmsg_alloc(); 4215 if (!msg) 4216 return -1; 4217 4218 if (start) 4219 nl80211_cmd(drv, msg, 0, NL80211_CMD_START_P2P_DEVICE); 4220 else 4221 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_P2P_DEVICE); 4222 4223 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 4224 4225 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4226 msg = NULL; 4227 4228 wpa_printf(MSG_DEBUG, "nl80211: %s P2P Device %s (0x%llx): %s", 4229 start ? "Start" : "Stop", 4230 bss->ifname, (long long unsigned int) bss->wdev_id, 4231 strerror(-ret)); 4232 4233nla_put_failure: 4234 nlmsg_free(msg); 4235 return ret; 4236} 4237 4238 4239static int i802_set_iface_flags(struct i802_bss *bss, int up) 4240{ 4241 enum nl80211_iftype nlmode; 4242 4243 nlmode = nl80211_get_ifmode(bss); 4244 if (nlmode != NL80211_IFTYPE_P2P_DEVICE) { 4245 return linux_set_iface_flags(bss->drv->global->ioctl_sock, 4246 bss->ifname, up); 4247 } 4248 4249 /* P2P Device has start/stop which is equivalent */ 4250 return nl80211_set_p2pdev(bss, up); 4251} 4252 4253 4254static int 4255wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv, 4256 const u8 *set_addr, int first) 4257{ 4258 struct i802_bss *bss = drv->first_bss; 4259 int send_rfkill_event = 0; 4260 enum nl80211_iftype nlmode; 4261 4262 drv->ifindex = if_nametoindex(bss->ifname); 4263 bss->ifindex = drv->ifindex; 4264 bss->wdev_id = drv->global->if_add_wdevid; 4265 bss->wdev_id_set = drv->global->if_add_wdevid_set; 4266 4267 bss->if_dynamic = drv->ifindex == drv->global->if_add_ifindex; 4268 bss->if_dynamic = bss->if_dynamic || drv->global->if_add_wdevid_set; 4269 drv->global->if_add_wdevid_set = 0; 4270 4271 if (wpa_driver_nl80211_capa(drv)) 4272 return -1; 4273 4274 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s", 4275 bss->ifname, drv->phyname); 4276 4277 if (set_addr && 4278 (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0) || 4279 linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 4280 set_addr))) 4281 return -1; 4282 4283 if (first && nl80211_get_ifmode(bss) == NL80211_IFTYPE_AP) 4284 drv->start_mode_ap = 1; 4285 4286 if (drv->hostapd) 4287 nlmode = NL80211_IFTYPE_AP; 4288 else if (bss->if_dynamic) 4289 nlmode = nl80211_get_ifmode(bss); 4290 else 4291 nlmode = NL80211_IFTYPE_STATION; 4292 4293 if (wpa_driver_nl80211_set_mode(bss, nlmode) < 0) { 4294 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver mode"); 4295 return -1; 4296 } 4297 4298 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { 4299 int ret = nl80211_set_p2pdev(bss, 1); 4300 if (ret < 0) 4301 wpa_printf(MSG_ERROR, "nl80211: Could not start P2P device"); 4302 nl80211_get_macaddr(bss); 4303 return ret; 4304 } 4305 4306 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) { 4307 if (rfkill_is_blocked(drv->rfkill)) { 4308 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable " 4309 "interface '%s' due to rfkill", 4310 bss->ifname); 4311 drv->if_disabled = 1; 4312 send_rfkill_event = 1; 4313 } else { 4314 wpa_printf(MSG_ERROR, "nl80211: Could not set " 4315 "interface '%s' UP", bss->ifname); 4316 return -1; 4317 } 4318 } 4319 4320 if (!drv->hostapd) 4321 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 4322 1, IF_OPER_DORMANT); 4323 4324 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 4325 bss->addr)) 4326 return -1; 4327 4328 if (send_rfkill_event) { 4329 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill, 4330 drv, drv->ctx); 4331 } 4332 4333 return 0; 4334} 4335 4336 4337static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv) 4338{ 4339 struct nl_msg *msg; 4340 4341 msg = nlmsg_alloc(); 4342 if (!msg) 4343 return -ENOMEM; 4344 4345 wpa_printf(MSG_DEBUG, "nl80211: Remove beacon (ifindex=%d)", 4346 drv->ifindex); 4347 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON); 4348 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4349 4350 return send_and_recv_msgs(drv, msg, NULL, NULL); 4351 nla_put_failure: 4352 nlmsg_free(msg); 4353 return -ENOBUFS; 4354} 4355 4356 4357/** 4358 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface 4359 * @bss: Pointer to private nl80211 data from wpa_driver_nl80211_init() 4360 * 4361 * Shut down driver interface and processing of driver events. Free 4362 * private data buffer if one was allocated in wpa_driver_nl80211_init(). 4363 */ 4364static void wpa_driver_nl80211_deinit(struct i802_bss *bss) 4365{ 4366 struct wpa_driver_nl80211_data *drv = bss->drv; 4367 4368 bss->in_deinit = 1; 4369 if (drv->data_tx_status) 4370 eloop_unregister_read_sock(drv->eapol_tx_sock); 4371 if (drv->eapol_tx_sock >= 0) 4372 close(drv->eapol_tx_sock); 4373 4374 if (bss->nl_preq) 4375 wpa_driver_nl80211_probe_req_report(bss, 0); 4376 if (bss->added_if_into_bridge) { 4377 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 4378 bss->ifname) < 0) 4379 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 4380 "interface %s from bridge %s: %s", 4381 bss->ifname, bss->brname, strerror(errno)); 4382 } 4383 if (bss->added_bridge) { 4384 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 4385 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 4386 "bridge %s: %s", 4387 bss->brname, strerror(errno)); 4388 } 4389 4390 nl80211_remove_monitor_interface(drv); 4391 4392 if (is_ap_interface(drv->nlmode)) 4393 wpa_driver_nl80211_del_beacon(drv); 4394 4395 if (drv->eapol_sock >= 0) { 4396 eloop_unregister_read_sock(drv->eapol_sock); 4397 close(drv->eapol_sock); 4398 } 4399 4400 if (drv->if_indices != drv->default_if_indices) 4401 os_free(drv->if_indices); 4402 4403 if (drv->disabled_11b_rates) 4404 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 4405 4406 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0, 4407 IF_OPER_UP); 4408 rfkill_deinit(drv->rfkill); 4409 4410 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 4411 4412 if (!drv->start_iface_up) 4413 (void) i802_set_iface_flags(bss, 0); 4414 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) { 4415 if (!drv->hostapd || !drv->start_mode_ap) 4416 wpa_driver_nl80211_set_mode(bss, 4417 NL80211_IFTYPE_STATION); 4418 nl80211_mgmt_unsubscribe(bss, "deinit"); 4419 } else { 4420 nl80211_mgmt_unsubscribe(bss, "deinit"); 4421 nl80211_del_p2pdev(bss); 4422 } 4423 nl_cb_put(drv->nl_cb); 4424 4425 nl80211_destroy_bss(drv->first_bss); 4426 4427 os_free(drv->filter_ssids); 4428 4429 os_free(drv->auth_ie); 4430 4431 if (drv->in_interface_list) 4432 dl_list_del(&drv->list); 4433 4434 os_free(drv->extended_capa); 4435 os_free(drv->extended_capa_mask); 4436 os_free(drv->first_bss); 4437 os_free(drv); 4438} 4439 4440 4441/** 4442 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion 4443 * @eloop_ctx: Driver private data 4444 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init() 4445 * 4446 * This function can be used as registered timeout when starting a scan to 4447 * generate a scan completed event if the driver does not report this. 4448 */ 4449static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx) 4450{ 4451 struct wpa_driver_nl80211_data *drv = eloop_ctx; 4452 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) { 4453 wpa_driver_nl80211_set_mode(drv->first_bss, 4454 drv->ap_scan_as_station); 4455 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 4456 } 4457 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results"); 4458 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL); 4459} 4460 4461 4462static struct nl_msg * 4463nl80211_scan_common(struct wpa_driver_nl80211_data *drv, u8 cmd, 4464 struct wpa_driver_scan_params *params, u64 *wdev_id) 4465{ 4466 struct nl_msg *msg; 4467 size_t i; 4468 4469 msg = nlmsg_alloc(); 4470 if (!msg) 4471 return NULL; 4472 4473 nl80211_cmd(drv, msg, 0, cmd); 4474 4475 if (!wdev_id) 4476 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4477 else 4478 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, *wdev_id); 4479 4480 if (params->num_ssids) { 4481 struct nlattr *ssids; 4482 4483 ssids = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); 4484 if (ssids == NULL) 4485 goto fail; 4486 for (i = 0; i < params->num_ssids; i++) { 4487 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID", 4488 params->ssids[i].ssid, 4489 params->ssids[i].ssid_len); 4490 if (nla_put(msg, i + 1, params->ssids[i].ssid_len, 4491 params->ssids[i].ssid) < 0) 4492 goto fail; 4493 } 4494 nla_nest_end(msg, ssids); 4495 } 4496 4497 if (params->extra_ies) { 4498 wpa_hexdump(MSG_MSGDUMP, "nl80211: Scan extra IEs", 4499 params->extra_ies, params->extra_ies_len); 4500 if (nla_put(msg, NL80211_ATTR_IE, params->extra_ies_len, 4501 params->extra_ies) < 0) 4502 goto fail; 4503 } 4504 4505 if (params->freqs) { 4506 struct nlattr *freqs; 4507 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); 4508 if (freqs == NULL) 4509 goto fail; 4510 for (i = 0; params->freqs[i]; i++) { 4511 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u " 4512 "MHz", params->freqs[i]); 4513 if (nla_put_u32(msg, i + 1, params->freqs[i]) < 0) 4514 goto fail; 4515 } 4516 nla_nest_end(msg, freqs); 4517 } 4518 4519 os_free(drv->filter_ssids); 4520 drv->filter_ssids = params->filter_ssids; 4521 params->filter_ssids = NULL; 4522 drv->num_filter_ssids = params->num_filter_ssids; 4523 4524 return msg; 4525 4526fail: 4527nla_put_failure: 4528 nlmsg_free(msg); 4529 return NULL; 4530} 4531 4532 4533/** 4534 * wpa_driver_nl80211_scan - Request the driver to initiate scan 4535 * @bss: Pointer to private driver data from wpa_driver_nl80211_init() 4536 * @params: Scan parameters 4537 * Returns: 0 on success, -1 on failure 4538 */ 4539static int wpa_driver_nl80211_scan(struct i802_bss *bss, 4540 struct wpa_driver_scan_params *params) 4541{ 4542 struct wpa_driver_nl80211_data *drv = bss->drv; 4543 int ret = -1, timeout; 4544 struct nl_msg *msg = NULL; 4545 4546 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: scan request"); 4547 drv->scan_for_auth = 0; 4548 4549 msg = nl80211_scan_common(drv, NL80211_CMD_TRIGGER_SCAN, params, 4550 bss->wdev_id_set ? &bss->wdev_id : NULL); 4551 if (!msg) 4552 return -1; 4553 4554 if (params->p2p_probe) { 4555 struct nlattr *rates; 4556 4557 wpa_printf(MSG_DEBUG, "nl80211: P2P probe - mask SuppRates"); 4558 4559 rates = nla_nest_start(msg, NL80211_ATTR_SCAN_SUPP_RATES); 4560 if (rates == NULL) 4561 goto nla_put_failure; 4562 4563 /* 4564 * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates 4565 * by masking out everything else apart from the OFDM rates 6, 4566 * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz 4567 * rates are left enabled. 4568 */ 4569 NLA_PUT(msg, NL80211_BAND_2GHZ, 8, 4570 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 4571 nla_nest_end(msg, rates); 4572 4573 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 4574 } 4575 4576 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4577 msg = NULL; 4578 if (ret) { 4579 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d " 4580 "(%s)", ret, strerror(-ret)); 4581 if (drv->hostapd && is_ap_interface(drv->nlmode)) { 4582 /* 4583 * mac80211 does not allow scan requests in AP mode, so 4584 * try to do this in station mode. 4585 */ 4586 if (wpa_driver_nl80211_set_mode( 4587 bss, NL80211_IFTYPE_STATION)) 4588 goto nla_put_failure; 4589 4590 if (wpa_driver_nl80211_scan(bss, params)) { 4591 wpa_driver_nl80211_set_mode(bss, drv->nlmode); 4592 goto nla_put_failure; 4593 } 4594 4595 /* Restore AP mode when processing scan results */ 4596 drv->ap_scan_as_station = drv->nlmode; 4597 ret = 0; 4598 } else 4599 goto nla_put_failure; 4600 } 4601 4602 drv->scan_state = SCAN_REQUESTED; 4603 /* Not all drivers generate "scan completed" wireless event, so try to 4604 * read results after a timeout. */ 4605 timeout = 10; 4606 if (drv->scan_complete_events) { 4607 /* 4608 * The driver seems to deliver events to notify when scan is 4609 * complete, so use longer timeout to avoid race conditions 4610 * with scanning and following association request. 4611 */ 4612 timeout = 30; 4613 } 4614 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d " 4615 "seconds", ret, timeout); 4616 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 4617 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout, 4618 drv, drv->ctx); 4619 4620nla_put_failure: 4621 nlmsg_free(msg); 4622 return ret; 4623} 4624 4625 4626/** 4627 * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan 4628 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 4629 * @params: Scan parameters 4630 * @interval: Interval between scan cycles in milliseconds 4631 * Returns: 0 on success, -1 on failure or if not supported 4632 */ 4633static int wpa_driver_nl80211_sched_scan(void *priv, 4634 struct wpa_driver_scan_params *params, 4635 u32 interval) 4636{ 4637 struct i802_bss *bss = priv; 4638 struct wpa_driver_nl80211_data *drv = bss->drv; 4639 int ret = -1; 4640 struct nl_msg *msg; 4641 size_t i; 4642 4643 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: sched_scan request"); 4644 4645#ifdef ANDROID 4646 if (!drv->capa.sched_scan_supported) 4647 return android_pno_start(bss, params); 4648#endif /* ANDROID */ 4649 4650 msg = nl80211_scan_common(drv, NL80211_CMD_START_SCHED_SCAN, params, 4651 bss->wdev_id_set ? &bss->wdev_id : NULL); 4652 if (!msg) 4653 goto nla_put_failure; 4654 4655 NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval); 4656 4657 if ((drv->num_filter_ssids && 4658 (int) drv->num_filter_ssids <= drv->capa.max_match_sets) || 4659 params->filter_rssi) { 4660 struct nlattr *match_sets; 4661 match_sets = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH); 4662 if (match_sets == NULL) 4663 goto nla_put_failure; 4664 4665 for (i = 0; i < drv->num_filter_ssids; i++) { 4666 struct nlattr *match_set_ssid; 4667 wpa_hexdump_ascii(MSG_MSGDUMP, 4668 "nl80211: Sched scan filter SSID", 4669 drv->filter_ssids[i].ssid, 4670 drv->filter_ssids[i].ssid_len); 4671 4672 match_set_ssid = nla_nest_start(msg, i + 1); 4673 if (match_set_ssid == NULL) 4674 goto nla_put_failure; 4675 NLA_PUT(msg, NL80211_ATTR_SCHED_SCAN_MATCH_SSID, 4676 drv->filter_ssids[i].ssid_len, 4677 drv->filter_ssids[i].ssid); 4678 4679 nla_nest_end(msg, match_set_ssid); 4680 } 4681 4682 if (params->filter_rssi) { 4683 struct nlattr *match_set_rssi; 4684 match_set_rssi = nla_nest_start(msg, 0); 4685 if (match_set_rssi == NULL) 4686 goto nla_put_failure; 4687 NLA_PUT_U32(msg, NL80211_SCHED_SCAN_MATCH_ATTR_RSSI, 4688 params->filter_rssi); 4689 wpa_printf(MSG_MSGDUMP, 4690 "nl80211: Sched scan RSSI filter %d dBm", 4691 params->filter_rssi); 4692 nla_nest_end(msg, match_set_rssi); 4693 } 4694 4695 nla_nest_end(msg, match_sets); 4696 } 4697 4698 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4699 4700 /* TODO: if we get an error here, we should fall back to normal scan */ 4701 4702 msg = NULL; 4703 if (ret) { 4704 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: " 4705 "ret=%d (%s)", ret, strerror(-ret)); 4706 goto nla_put_failure; 4707 } 4708 4709 wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - " 4710 "scan interval %d msec", ret, interval); 4711 4712nla_put_failure: 4713 nlmsg_free(msg); 4714 return ret; 4715} 4716 4717 4718/** 4719 * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan 4720 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 4721 * Returns: 0 on success, -1 on failure or if not supported 4722 */ 4723static int wpa_driver_nl80211_stop_sched_scan(void *priv) 4724{ 4725 struct i802_bss *bss = priv; 4726 struct wpa_driver_nl80211_data *drv = bss->drv; 4727 int ret = 0; 4728 struct nl_msg *msg; 4729 4730#ifdef ANDROID 4731 if (!drv->capa.sched_scan_supported) 4732 return android_pno_stop(bss); 4733#endif /* ANDROID */ 4734 4735 msg = nlmsg_alloc(); 4736 if (!msg) 4737 return -1; 4738 4739 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN); 4740 4741 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4742 4743 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4744 msg = NULL; 4745 if (ret) { 4746 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: " 4747 "ret=%d (%s)", ret, strerror(-ret)); 4748 goto nla_put_failure; 4749 } 4750 4751 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret); 4752 4753nla_put_failure: 4754 nlmsg_free(msg); 4755 return ret; 4756} 4757 4758 4759static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie) 4760{ 4761 const u8 *end, *pos; 4762 4763 if (ies == NULL) 4764 return NULL; 4765 4766 pos = ies; 4767 end = ies + ies_len; 4768 4769 while (pos + 1 < end) { 4770 if (pos + 2 + pos[1] > end) 4771 break; 4772 if (pos[0] == ie) 4773 return pos; 4774 pos += 2 + pos[1]; 4775 } 4776 4777 return NULL; 4778} 4779 4780 4781static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv, 4782 const u8 *ie, size_t ie_len) 4783{ 4784 const u8 *ssid; 4785 size_t i; 4786 4787 if (drv->filter_ssids == NULL) 4788 return 0; 4789 4790 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID); 4791 if (ssid == NULL) 4792 return 1; 4793 4794 for (i = 0; i < drv->num_filter_ssids; i++) { 4795 if (ssid[1] == drv->filter_ssids[i].ssid_len && 4796 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) == 4797 0) 4798 return 0; 4799 } 4800 4801 return 1; 4802} 4803 4804 4805static int bss_info_handler(struct nl_msg *msg, void *arg) 4806{ 4807 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 4808 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 4809 struct nlattr *bss[NL80211_BSS_MAX + 1]; 4810 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = { 4811 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC }, 4812 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 }, 4813 [NL80211_BSS_TSF] = { .type = NLA_U64 }, 4814 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 }, 4815 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 }, 4816 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC }, 4817 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 }, 4818 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 }, 4819 [NL80211_BSS_STATUS] = { .type = NLA_U32 }, 4820 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 }, 4821 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC }, 4822 }; 4823 struct nl80211_bss_info_arg *_arg = arg; 4824 struct wpa_scan_results *res = _arg->res; 4825 struct wpa_scan_res **tmp; 4826 struct wpa_scan_res *r; 4827 const u8 *ie, *beacon_ie; 4828 size_t ie_len, beacon_ie_len; 4829 u8 *pos; 4830 size_t i; 4831 4832 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 4833 genlmsg_attrlen(gnlh, 0), NULL); 4834 if (!tb[NL80211_ATTR_BSS]) 4835 return NL_SKIP; 4836 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS], 4837 bss_policy)) 4838 return NL_SKIP; 4839 if (bss[NL80211_BSS_STATUS]) { 4840 enum nl80211_bss_status status; 4841 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 4842 if (status == NL80211_BSS_STATUS_ASSOCIATED && 4843 bss[NL80211_BSS_FREQUENCY]) { 4844 _arg->assoc_freq = 4845 nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 4846 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz", 4847 _arg->assoc_freq); 4848 } 4849 if (status == NL80211_BSS_STATUS_ASSOCIATED && 4850 bss[NL80211_BSS_BSSID]) { 4851 os_memcpy(_arg->assoc_bssid, 4852 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN); 4853 wpa_printf(MSG_DEBUG, "nl80211: Associated with " 4854 MACSTR, MAC2STR(_arg->assoc_bssid)); 4855 } 4856 } 4857 if (!res) 4858 return NL_SKIP; 4859 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) { 4860 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 4861 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 4862 } else { 4863 ie = NULL; 4864 ie_len = 0; 4865 } 4866 if (bss[NL80211_BSS_BEACON_IES]) { 4867 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]); 4868 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]); 4869 } else { 4870 beacon_ie = NULL; 4871 beacon_ie_len = 0; 4872 } 4873 4874 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie, 4875 ie ? ie_len : beacon_ie_len)) 4876 return NL_SKIP; 4877 4878 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len); 4879 if (r == NULL) 4880 return NL_SKIP; 4881 if (bss[NL80211_BSS_BSSID]) 4882 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]), 4883 ETH_ALEN); 4884 if (bss[NL80211_BSS_FREQUENCY]) 4885 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 4886 if (bss[NL80211_BSS_BEACON_INTERVAL]) 4887 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]); 4888 if (bss[NL80211_BSS_CAPABILITY]) 4889 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]); 4890 r->flags |= WPA_SCAN_NOISE_INVALID; 4891 if (bss[NL80211_BSS_SIGNAL_MBM]) { 4892 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]); 4893 r->level /= 100; /* mBm to dBm */ 4894 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID; 4895 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) { 4896 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]); 4897 r->flags |= WPA_SCAN_QUAL_INVALID; 4898 } else 4899 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID; 4900 if (bss[NL80211_BSS_TSF]) 4901 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]); 4902 if (bss[NL80211_BSS_SEEN_MS_AGO]) 4903 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]); 4904 r->ie_len = ie_len; 4905 pos = (u8 *) (r + 1); 4906 if (ie) { 4907 os_memcpy(pos, ie, ie_len); 4908 pos += ie_len; 4909 } 4910 r->beacon_ie_len = beacon_ie_len; 4911 if (beacon_ie) 4912 os_memcpy(pos, beacon_ie, beacon_ie_len); 4913 4914 if (bss[NL80211_BSS_STATUS]) { 4915 enum nl80211_bss_status status; 4916 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 4917 switch (status) { 4918 case NL80211_BSS_STATUS_AUTHENTICATED: 4919 r->flags |= WPA_SCAN_AUTHENTICATED; 4920 break; 4921 case NL80211_BSS_STATUS_ASSOCIATED: 4922 r->flags |= WPA_SCAN_ASSOCIATED; 4923 break; 4924 default: 4925 break; 4926 } 4927 } 4928 4929 /* 4930 * cfg80211 maintains separate BSS table entries for APs if the same 4931 * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does 4932 * not use frequency as a separate key in the BSS table, so filter out 4933 * duplicated entries. Prefer associated BSS entry in such a case in 4934 * order to get the correct frequency into the BSS table. 4935 */ 4936 for (i = 0; i < res->num; i++) { 4937 const u8 *s1, *s2; 4938 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0) 4939 continue; 4940 4941 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1), 4942 res->res[i]->ie_len, WLAN_EID_SSID); 4943 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID); 4944 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] || 4945 os_memcmp(s1, s2, 2 + s1[1]) != 0) 4946 continue; 4947 4948 /* Same BSSID,SSID was already included in scan results */ 4949 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result " 4950 "for " MACSTR, MAC2STR(r->bssid)); 4951 4952 if ((r->flags & WPA_SCAN_ASSOCIATED) && 4953 !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) { 4954 os_free(res->res[i]); 4955 res->res[i] = r; 4956 } else 4957 os_free(r); 4958 return NL_SKIP; 4959 } 4960 4961 tmp = os_realloc_array(res->res, res->num + 1, 4962 sizeof(struct wpa_scan_res *)); 4963 if (tmp == NULL) { 4964 os_free(r); 4965 return NL_SKIP; 4966 } 4967 tmp[res->num++] = r; 4968 res->res = tmp; 4969 4970 return NL_SKIP; 4971} 4972 4973 4974static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv, 4975 const u8 *addr) 4976{ 4977 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 4978 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state " 4979 "mismatch (" MACSTR ")", MAC2STR(addr)); 4980 wpa_driver_nl80211_mlme(drv, addr, 4981 NL80211_CMD_DEAUTHENTICATE, 4982 WLAN_REASON_PREV_AUTH_NOT_VALID, 1); 4983 } 4984} 4985 4986 4987static void wpa_driver_nl80211_check_bss_status( 4988 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res) 4989{ 4990 size_t i; 4991 4992 for (i = 0; i < res->num; i++) { 4993 struct wpa_scan_res *r = res->res[i]; 4994 if (r->flags & WPA_SCAN_AUTHENTICATED) { 4995 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 4996 "indicates BSS status with " MACSTR 4997 " as authenticated", 4998 MAC2STR(r->bssid)); 4999 if (is_sta_interface(drv->nlmode) && 5000 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 && 5001 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) != 5002 0) { 5003 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID" 5004 " in local state (auth=" MACSTR 5005 " assoc=" MACSTR ")", 5006 MAC2STR(drv->auth_bssid), 5007 MAC2STR(drv->bssid)); 5008 clear_state_mismatch(drv, r->bssid); 5009 } 5010 } 5011 5012 if (r->flags & WPA_SCAN_ASSOCIATED) { 5013 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 5014 "indicate BSS status with " MACSTR 5015 " as associated", 5016 MAC2STR(r->bssid)); 5017 if (is_sta_interface(drv->nlmode) && 5018 !drv->associated) { 5019 wpa_printf(MSG_DEBUG, "nl80211: Local state " 5020 "(not associated) does not match " 5021 "with BSS state"); 5022 clear_state_mismatch(drv, r->bssid); 5023 } else if (is_sta_interface(drv->nlmode) && 5024 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) != 5025 0) { 5026 wpa_printf(MSG_DEBUG, "nl80211: Local state " 5027 "(associated with " MACSTR ") does " 5028 "not match with BSS state", 5029 MAC2STR(drv->bssid)); 5030 clear_state_mismatch(drv, r->bssid); 5031 clear_state_mismatch(drv, drv->bssid); 5032 } 5033 } 5034 } 5035} 5036 5037 5038static struct wpa_scan_results * 5039nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv) 5040{ 5041 struct nl_msg *msg; 5042 struct wpa_scan_results *res; 5043 int ret; 5044 struct nl80211_bss_info_arg arg; 5045 5046 res = os_zalloc(sizeof(*res)); 5047 if (res == NULL) 5048 return NULL; 5049 msg = nlmsg_alloc(); 5050 if (!msg) 5051 goto nla_put_failure; 5052 5053 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 5054 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 5055 goto nla_put_failure; 5056 5057 arg.drv = drv; 5058 arg.res = res; 5059 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 5060 msg = NULL; 5061 if (ret == 0) { 5062 wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu " 5063 "BSSes)", (unsigned long) res->num); 5064 nl80211_get_noise_for_scan_results(drv, res); 5065 return res; 5066 } 5067 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 5068 "(%s)", ret, strerror(-ret)); 5069nla_put_failure: 5070 nlmsg_free(msg); 5071 wpa_scan_results_free(res); 5072 return NULL; 5073} 5074 5075 5076/** 5077 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results 5078 * @priv: Pointer to private wext data from wpa_driver_nl80211_init() 5079 * Returns: Scan results on success, -1 on failure 5080 */ 5081static struct wpa_scan_results * 5082wpa_driver_nl80211_get_scan_results(void *priv) 5083{ 5084 struct i802_bss *bss = priv; 5085 struct wpa_driver_nl80211_data *drv = bss->drv; 5086 struct wpa_scan_results *res; 5087 5088 res = nl80211_get_scan_results(drv); 5089 if (res) 5090 wpa_driver_nl80211_check_bss_status(drv, res); 5091 return res; 5092} 5093 5094 5095static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv) 5096{ 5097 struct wpa_scan_results *res; 5098 size_t i; 5099 5100 res = nl80211_get_scan_results(drv); 5101 if (res == NULL) { 5102 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results"); 5103 return; 5104 } 5105 5106 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump"); 5107 for (i = 0; i < res->num; i++) { 5108 struct wpa_scan_res *r = res->res[i]; 5109 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s", 5110 (int) i, (int) res->num, MAC2STR(r->bssid), 5111 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "", 5112 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : ""); 5113 } 5114 5115 wpa_scan_results_free(res); 5116} 5117 5118 5119static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss, 5120 enum wpa_alg alg, const u8 *addr, 5121 int key_idx, int set_tx, 5122 const u8 *seq, size_t seq_len, 5123 const u8 *key, size_t key_len) 5124{ 5125 struct wpa_driver_nl80211_data *drv = bss->drv; 5126 int ifindex; 5127 struct nl_msg *msg; 5128 int ret; 5129 int tdls = 0; 5130 5131 /* Ignore for P2P Device */ 5132 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 5133 return 0; 5134 5135 ifindex = if_nametoindex(ifname); 5136 wpa_printf(MSG_DEBUG, "%s: ifindex=%d (%s) alg=%d addr=%p key_idx=%d " 5137 "set_tx=%d seq_len=%lu key_len=%lu", 5138 __func__, ifindex, ifname, alg, addr, key_idx, set_tx, 5139 (unsigned long) seq_len, (unsigned long) key_len); 5140#ifdef CONFIG_TDLS 5141 if (key_idx == -1) { 5142 key_idx = 0; 5143 tdls = 1; 5144 } 5145#endif /* CONFIG_TDLS */ 5146 5147 msg = nlmsg_alloc(); 5148 if (!msg) 5149 return -ENOMEM; 5150 5151 if (alg == WPA_ALG_NONE) { 5152 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY); 5153 } else { 5154 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY); 5155 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key); 5156 switch (alg) { 5157 case WPA_ALG_WEP: 5158 if (key_len == 5) 5159 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5160 WLAN_CIPHER_SUITE_WEP40); 5161 else 5162 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5163 WLAN_CIPHER_SUITE_WEP104); 5164 break; 5165 case WPA_ALG_TKIP: 5166 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5167 WLAN_CIPHER_SUITE_TKIP); 5168 break; 5169 case WPA_ALG_CCMP: 5170 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5171 WLAN_CIPHER_SUITE_CCMP); 5172 break; 5173 case WPA_ALG_GCMP: 5174 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5175 WLAN_CIPHER_SUITE_GCMP); 5176 break; 5177 case WPA_ALG_IGTK: 5178 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5179 WLAN_CIPHER_SUITE_AES_CMAC); 5180 break; 5181 case WPA_ALG_SMS4: 5182 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5183 WLAN_CIPHER_SUITE_SMS4); 5184 break; 5185 case WPA_ALG_KRK: 5186 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5187 WLAN_CIPHER_SUITE_KRK); 5188 break; 5189 default: 5190 wpa_printf(MSG_ERROR, "%s: Unsupported encryption " 5191 "algorithm %d", __func__, alg); 5192 nlmsg_free(msg); 5193 return -1; 5194 } 5195 } 5196 5197 if (seq && seq_len) 5198 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq); 5199 5200 if (addr && !is_broadcast_ether_addr(addr)) { 5201 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr)); 5202 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 5203 5204 if (alg != WPA_ALG_WEP && key_idx && !set_tx) { 5205 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK"); 5206 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, 5207 NL80211_KEYTYPE_GROUP); 5208 } 5209 } else if (addr && is_broadcast_ether_addr(addr)) { 5210 struct nlattr *types; 5211 5212 wpa_printf(MSG_DEBUG, " broadcast key"); 5213 5214 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5215 if (!types) 5216 goto nla_put_failure; 5217 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 5218 nla_nest_end(msg, types); 5219 } 5220 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 5221 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5222 5223 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5224 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE) 5225 ret = 0; 5226 if (ret) 5227 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)", 5228 ret, strerror(-ret)); 5229 5230 /* 5231 * If we failed or don't need to set the default TX key (below), 5232 * we're done here. 5233 */ 5234 if (ret || !set_tx || alg == WPA_ALG_NONE || tdls) 5235 return ret; 5236 if (is_ap_interface(drv->nlmode) && addr && 5237 !is_broadcast_ether_addr(addr)) 5238 return ret; 5239 5240 msg = nlmsg_alloc(); 5241 if (!msg) 5242 return -ENOMEM; 5243 5244 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY); 5245 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 5246 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5247 if (alg == WPA_ALG_IGTK) 5248 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT); 5249 else 5250 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT); 5251 if (addr && is_broadcast_ether_addr(addr)) { 5252 struct nlattr *types; 5253 5254 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5255 if (!types) 5256 goto nla_put_failure; 5257 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 5258 nla_nest_end(msg, types); 5259 } else if (addr) { 5260 struct nlattr *types; 5261 5262 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5263 if (!types) 5264 goto nla_put_failure; 5265 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_UNICAST); 5266 nla_nest_end(msg, types); 5267 } 5268 5269 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5270 if (ret == -ENOENT) 5271 ret = 0; 5272 if (ret) 5273 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; " 5274 "err=%d %s)", ret, strerror(-ret)); 5275 return ret; 5276 5277nla_put_failure: 5278 nlmsg_free(msg); 5279 return -ENOBUFS; 5280} 5281 5282 5283static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg, 5284 int key_idx, int defkey, 5285 const u8 *seq, size_t seq_len, 5286 const u8 *key, size_t key_len) 5287{ 5288 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY); 5289 if (!key_attr) 5290 return -1; 5291 5292 if (defkey && alg == WPA_ALG_IGTK) 5293 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT); 5294 else if (defkey) 5295 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 5296 5297 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx); 5298 5299 switch (alg) { 5300 case WPA_ALG_WEP: 5301 if (key_len == 5) 5302 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5303 WLAN_CIPHER_SUITE_WEP40); 5304 else 5305 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5306 WLAN_CIPHER_SUITE_WEP104); 5307 break; 5308 case WPA_ALG_TKIP: 5309 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP); 5310 break; 5311 case WPA_ALG_CCMP: 5312 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP); 5313 break; 5314 case WPA_ALG_GCMP: 5315 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_GCMP); 5316 break; 5317 case WPA_ALG_IGTK: 5318 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5319 WLAN_CIPHER_SUITE_AES_CMAC); 5320 break; 5321 default: 5322 wpa_printf(MSG_ERROR, "%s: Unsupported encryption " 5323 "algorithm %d", __func__, alg); 5324 return -1; 5325 } 5326 5327 if (seq && seq_len) 5328 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq); 5329 5330 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key); 5331 5332 nla_nest_end(msg, key_attr); 5333 5334 return 0; 5335 nla_put_failure: 5336 return -1; 5337} 5338 5339 5340static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params, 5341 struct nl_msg *msg) 5342{ 5343 int i, privacy = 0; 5344 struct nlattr *nl_keys, *nl_key; 5345 5346 for (i = 0; i < 4; i++) { 5347 if (!params->wep_key[i]) 5348 continue; 5349 privacy = 1; 5350 break; 5351 } 5352 if (params->wps == WPS_MODE_PRIVACY) 5353 privacy = 1; 5354 if (params->pairwise_suite && 5355 params->pairwise_suite != WPA_CIPHER_NONE) 5356 privacy = 1; 5357 5358 if (!privacy) 5359 return 0; 5360 5361 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 5362 5363 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS); 5364 if (!nl_keys) 5365 goto nla_put_failure; 5366 5367 for (i = 0; i < 4; i++) { 5368 if (!params->wep_key[i]) 5369 continue; 5370 5371 nl_key = nla_nest_start(msg, i); 5372 if (!nl_key) 5373 goto nla_put_failure; 5374 5375 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i], 5376 params->wep_key[i]); 5377 if (params->wep_key_len[i] == 5) 5378 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5379 WLAN_CIPHER_SUITE_WEP40); 5380 else 5381 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5382 WLAN_CIPHER_SUITE_WEP104); 5383 5384 NLA_PUT_U8(msg, NL80211_KEY_IDX, i); 5385 5386 if (i == params->wep_tx_keyidx) 5387 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 5388 5389 nla_nest_end(msg, nl_key); 5390 } 5391 nla_nest_end(msg, nl_keys); 5392 5393 return 0; 5394 5395nla_put_failure: 5396 return -ENOBUFS; 5397} 5398 5399 5400static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 5401 const u8 *addr, int cmd, u16 reason_code, 5402 int local_state_change) 5403{ 5404 int ret = -1; 5405 struct nl_msg *msg; 5406 5407 msg = nlmsg_alloc(); 5408 if (!msg) 5409 return -1; 5410 5411 nl80211_cmd(drv, msg, 0, cmd); 5412 5413 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5414 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code); 5415 if (addr) 5416 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 5417 if (local_state_change) 5418 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 5419 5420 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5421 msg = NULL; 5422 if (ret) { 5423 wpa_dbg(drv->ctx, MSG_DEBUG, 5424 "nl80211: MLME command failed: reason=%u ret=%d (%s)", 5425 reason_code, ret, strerror(-ret)); 5426 goto nla_put_failure; 5427 } 5428 ret = 0; 5429 5430nla_put_failure: 5431 nlmsg_free(msg); 5432 return ret; 5433} 5434 5435 5436static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv, 5437 int reason_code) 5438{ 5439 int ret; 5440 5441 wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code); 5442 nl80211_mark_disconnected(drv); 5443 /* Disconnect command doesn't need BSSID - it uses cached value */ 5444 ret = wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT, 5445 reason_code, 0); 5446 /* 5447 * For locally generated disconnect, supplicant already generates a 5448 * DEAUTH event, so ignore the event from NL80211. 5449 */ 5450 drv->ignore_next_local_disconnect = ret == 0; 5451 5452 return ret; 5453} 5454 5455 5456static int wpa_driver_nl80211_deauthenticate(struct i802_bss *bss, 5457 const u8 *addr, int reason_code) 5458{ 5459 struct wpa_driver_nl80211_data *drv = bss->drv; 5460 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) 5461 return wpa_driver_nl80211_disconnect(drv, reason_code); 5462 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)", 5463 __func__, MAC2STR(addr), reason_code); 5464 nl80211_mark_disconnected(drv); 5465 if (drv->nlmode == NL80211_IFTYPE_ADHOC) 5466 return nl80211_leave_ibss(drv); 5467 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE, 5468 reason_code, 0); 5469} 5470 5471 5472static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv, 5473 struct wpa_driver_auth_params *params) 5474{ 5475 int i; 5476 5477 drv->auth_freq = params->freq; 5478 drv->auth_alg = params->auth_alg; 5479 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx; 5480 drv->auth_local_state_change = params->local_state_change; 5481 drv->auth_p2p = params->p2p; 5482 5483 if (params->bssid) 5484 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN); 5485 else 5486 os_memset(drv->auth_bssid_, 0, ETH_ALEN); 5487 5488 if (params->ssid) { 5489 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len); 5490 drv->auth_ssid_len = params->ssid_len; 5491 } else 5492 drv->auth_ssid_len = 0; 5493 5494 5495 os_free(drv->auth_ie); 5496 drv->auth_ie = NULL; 5497 drv->auth_ie_len = 0; 5498 if (params->ie) { 5499 drv->auth_ie = os_malloc(params->ie_len); 5500 if (drv->auth_ie) { 5501 os_memcpy(drv->auth_ie, params->ie, params->ie_len); 5502 drv->auth_ie_len = params->ie_len; 5503 } 5504 } 5505 5506 for (i = 0; i < 4; i++) { 5507 if (params->wep_key[i] && params->wep_key_len[i] && 5508 params->wep_key_len[i] <= 16) { 5509 os_memcpy(drv->auth_wep_key[i], params->wep_key[i], 5510 params->wep_key_len[i]); 5511 drv->auth_wep_key_len[i] = params->wep_key_len[i]; 5512 } else 5513 drv->auth_wep_key_len[i] = 0; 5514 } 5515} 5516 5517 5518static int wpa_driver_nl80211_authenticate( 5519 struct i802_bss *bss, struct wpa_driver_auth_params *params) 5520{ 5521 struct wpa_driver_nl80211_data *drv = bss->drv; 5522 int ret = -1, i; 5523 struct nl_msg *msg; 5524 enum nl80211_auth_type type; 5525 enum nl80211_iftype nlmode; 5526 int count = 0; 5527 int is_retry; 5528 5529 is_retry = drv->retry_auth; 5530 drv->retry_auth = 0; 5531 5532 nl80211_mark_disconnected(drv); 5533 os_memset(drv->auth_bssid, 0, ETH_ALEN); 5534 if (params->bssid) 5535 os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN); 5536 else 5537 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 5538 /* FIX: IBSS mode */ 5539 nlmode = params->p2p ? 5540 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 5541 if (drv->nlmode != nlmode && 5542 wpa_driver_nl80211_set_mode(bss, nlmode) < 0) 5543 return -1; 5544 5545retry: 5546 msg = nlmsg_alloc(); 5547 if (!msg) 5548 return -1; 5549 5550 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)", 5551 drv->ifindex); 5552 5553 nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE); 5554 5555 for (i = 0; i < 4; i++) { 5556 if (!params->wep_key[i]) 5557 continue; 5558 wpa_driver_nl80211_set_key(bss->ifname, bss, WPA_ALG_WEP, 5559 NULL, i, 5560 i == params->wep_tx_keyidx, NULL, 0, 5561 params->wep_key[i], 5562 params->wep_key_len[i]); 5563 if (params->wep_tx_keyidx != i) 5564 continue; 5565 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0, 5566 params->wep_key[i], params->wep_key_len[i])) { 5567 nlmsg_free(msg); 5568 return -1; 5569 } 5570 } 5571 5572 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5573 if (params->bssid) { 5574 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 5575 MAC2STR(params->bssid)); 5576 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 5577 } 5578 if (params->freq) { 5579 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 5580 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 5581 } 5582 if (params->ssid) { 5583 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 5584 params->ssid, params->ssid_len); 5585 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 5586 params->ssid); 5587 } 5588 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len); 5589 if (params->ie) 5590 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie); 5591 if (params->sae_data) { 5592 wpa_hexdump(MSG_DEBUG, " * SAE data", params->sae_data, 5593 params->sae_data_len); 5594 NLA_PUT(msg, NL80211_ATTR_SAE_DATA, params->sae_data_len, 5595 params->sae_data); 5596 } 5597 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 5598 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 5599 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 5600 type = NL80211_AUTHTYPE_SHARED_KEY; 5601 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 5602 type = NL80211_AUTHTYPE_NETWORK_EAP; 5603 else if (params->auth_alg & WPA_AUTH_ALG_FT) 5604 type = NL80211_AUTHTYPE_FT; 5605 else if (params->auth_alg & WPA_AUTH_ALG_SAE) 5606 type = NL80211_AUTHTYPE_SAE; 5607 else 5608 goto nla_put_failure; 5609 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 5610 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 5611 if (params->local_state_change) { 5612 wpa_printf(MSG_DEBUG, " * Local state change only"); 5613 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 5614 } 5615 5616 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5617 msg = NULL; 5618 if (ret) { 5619 wpa_dbg(drv->ctx, MSG_DEBUG, 5620 "nl80211: MLME command failed (auth): ret=%d (%s)", 5621 ret, strerror(-ret)); 5622 count++; 5623 if (ret == -EALREADY && count == 1 && params->bssid && 5624 !params->local_state_change) { 5625 /* 5626 * mac80211 does not currently accept new 5627 * authentication if we are already authenticated. As a 5628 * workaround, force deauthentication and try again. 5629 */ 5630 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication " 5631 "after forced deauthentication"); 5632 wpa_driver_nl80211_deauthenticate( 5633 bss, params->bssid, 5634 WLAN_REASON_PREV_AUTH_NOT_VALID); 5635 nlmsg_free(msg); 5636 goto retry; 5637 } 5638 5639 if (ret == -ENOENT && params->freq && !is_retry) { 5640 /* 5641 * cfg80211 has likely expired the BSS entry even 5642 * though it was previously available in our internal 5643 * BSS table. To recover quickly, start a single 5644 * channel scan on the specified channel. 5645 */ 5646 struct wpa_driver_scan_params scan; 5647 int freqs[2]; 5648 5649 os_memset(&scan, 0, sizeof(scan)); 5650 scan.num_ssids = 1; 5651 if (params->ssid) { 5652 scan.ssids[0].ssid = params->ssid; 5653 scan.ssids[0].ssid_len = params->ssid_len; 5654 } 5655 freqs[0] = params->freq; 5656 freqs[1] = 0; 5657 scan.freqs = freqs; 5658 wpa_printf(MSG_DEBUG, "nl80211: Trigger single " 5659 "channel scan to refresh cfg80211 BSS " 5660 "entry"); 5661 ret = wpa_driver_nl80211_scan(bss, &scan); 5662 if (ret == 0) { 5663 nl80211_copy_auth_params(drv, params); 5664 drv->scan_for_auth = 1; 5665 } 5666 } else if (is_retry) { 5667 /* 5668 * Need to indicate this with an event since the return 5669 * value from the retry is not delivered to core code. 5670 */ 5671 union wpa_event_data event; 5672 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry " 5673 "failed"); 5674 os_memset(&event, 0, sizeof(event)); 5675 os_memcpy(event.timeout_event.addr, drv->auth_bssid_, 5676 ETH_ALEN); 5677 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT, 5678 &event); 5679 } 5680 5681 goto nla_put_failure; 5682 } 5683 ret = 0; 5684 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send " 5685 "successfully"); 5686 5687nla_put_failure: 5688 nlmsg_free(msg); 5689 return ret; 5690} 5691 5692 5693static int wpa_driver_nl80211_authenticate_retry( 5694 struct wpa_driver_nl80211_data *drv) 5695{ 5696 struct wpa_driver_auth_params params; 5697 struct i802_bss *bss = drv->first_bss; 5698 int i; 5699 5700 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again"); 5701 5702 os_memset(¶ms, 0, sizeof(params)); 5703 params.freq = drv->auth_freq; 5704 params.auth_alg = drv->auth_alg; 5705 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx; 5706 params.local_state_change = drv->auth_local_state_change; 5707 params.p2p = drv->auth_p2p; 5708 5709 if (!is_zero_ether_addr(drv->auth_bssid_)) 5710 params.bssid = drv->auth_bssid_; 5711 5712 if (drv->auth_ssid_len) { 5713 params.ssid = drv->auth_ssid; 5714 params.ssid_len = drv->auth_ssid_len; 5715 } 5716 5717 params.ie = drv->auth_ie; 5718 params.ie_len = drv->auth_ie_len; 5719 5720 for (i = 0; i < 4; i++) { 5721 if (drv->auth_wep_key_len[i]) { 5722 params.wep_key[i] = drv->auth_wep_key[i]; 5723 params.wep_key_len[i] = drv->auth_wep_key_len[i]; 5724 } 5725 } 5726 5727 drv->retry_auth = 1; 5728 return wpa_driver_nl80211_authenticate(bss, ¶ms); 5729} 5730 5731 5732struct phy_info_arg { 5733 u16 *num_modes; 5734 struct hostapd_hw_modes *modes; 5735 int last_mode, last_chan_idx; 5736}; 5737 5738static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa, 5739 struct nlattr *ampdu_factor, 5740 struct nlattr *ampdu_density, 5741 struct nlattr *mcs_set) 5742{ 5743 if (capa) 5744 mode->ht_capab = nla_get_u16(capa); 5745 5746 if (ampdu_factor) 5747 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03; 5748 5749 if (ampdu_density) 5750 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2; 5751 5752 if (mcs_set && nla_len(mcs_set) >= 16) { 5753 u8 *mcs; 5754 mcs = nla_data(mcs_set); 5755 os_memcpy(mode->mcs_set, mcs, 16); 5756 } 5757} 5758 5759 5760static void phy_info_vht_capa(struct hostapd_hw_modes *mode, 5761 struct nlattr *capa, 5762 struct nlattr *mcs_set) 5763{ 5764 if (capa) 5765 mode->vht_capab = nla_get_u32(capa); 5766 5767 if (mcs_set && nla_len(mcs_set) >= 8) { 5768 u8 *mcs; 5769 mcs = nla_data(mcs_set); 5770 os_memcpy(mode->vht_mcs_set, mcs, 8); 5771 } 5772} 5773 5774 5775static void phy_info_freq(struct hostapd_hw_modes *mode, 5776 struct hostapd_channel_data *chan, 5777 struct nlattr *tb_freq[]) 5778{ 5779 u8 channel; 5780 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]); 5781 chan->flag = 0; 5782 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES) 5783 chan->chan = channel; 5784 5785 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) 5786 chan->flag |= HOSTAPD_CHAN_DISABLED; 5787 if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN]) 5788 chan->flag |= HOSTAPD_CHAN_PASSIVE_SCAN; 5789 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS]) 5790 chan->flag |= HOSTAPD_CHAN_NO_IBSS; 5791 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR]) 5792 chan->flag |= HOSTAPD_CHAN_RADAR; 5793 5794 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) { 5795 enum nl80211_dfs_state state = 5796 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]); 5797 5798 switch (state) { 5799 case NL80211_DFS_USABLE: 5800 chan->flag |= HOSTAPD_CHAN_DFS_USABLE; 5801 break; 5802 case NL80211_DFS_AVAILABLE: 5803 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE; 5804 break; 5805 case NL80211_DFS_UNAVAILABLE: 5806 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE; 5807 break; 5808 } 5809 } 5810} 5811 5812 5813static int phy_info_freqs(struct phy_info_arg *phy_info, 5814 struct hostapd_hw_modes *mode, struct nlattr *tb) 5815{ 5816 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 5817 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 }, 5818 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG }, 5819 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG }, 5820 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG }, 5821 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG }, 5822 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 }, 5823 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 }, 5824 }; 5825 int new_channels = 0; 5826 struct hostapd_channel_data *channel; 5827 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1]; 5828 struct nlattr *nl_freq; 5829 int rem_freq, idx; 5830 5831 if (tb == NULL) 5832 return NL_OK; 5833 5834 nla_for_each_nested(nl_freq, tb, rem_freq) { 5835 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 5836 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 5837 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 5838 continue; 5839 new_channels++; 5840 } 5841 5842 channel = os_realloc_array(mode->channels, 5843 mode->num_channels + new_channels, 5844 sizeof(struct hostapd_channel_data)); 5845 if (!channel) 5846 return NL_SKIP; 5847 5848 mode->channels = channel; 5849 mode->num_channels += new_channels; 5850 5851 idx = phy_info->last_chan_idx; 5852 5853 nla_for_each_nested(nl_freq, tb, rem_freq) { 5854 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 5855 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 5856 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 5857 continue; 5858 phy_info_freq(mode, &mode->channels[idx], tb_freq); 5859 idx++; 5860 } 5861 phy_info->last_chan_idx = idx; 5862 5863 return NL_OK; 5864} 5865 5866 5867static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb) 5868{ 5869 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = { 5870 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 }, 5871 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = 5872 { .type = NLA_FLAG }, 5873 }; 5874 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1]; 5875 struct nlattr *nl_rate; 5876 int rem_rate, idx; 5877 5878 if (tb == NULL) 5879 return NL_OK; 5880 5881 nla_for_each_nested(nl_rate, tb, rem_rate) { 5882 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 5883 nla_data(nl_rate), nla_len(nl_rate), 5884 rate_policy); 5885 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 5886 continue; 5887 mode->num_rates++; 5888 } 5889 5890 mode->rates = os_calloc(mode->num_rates, sizeof(int)); 5891 if (!mode->rates) 5892 return NL_SKIP; 5893 5894 idx = 0; 5895 5896 nla_for_each_nested(nl_rate, tb, rem_rate) { 5897 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 5898 nla_data(nl_rate), nla_len(nl_rate), 5899 rate_policy); 5900 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 5901 continue; 5902 mode->rates[idx] = nla_get_u32( 5903 tb_rate[NL80211_BITRATE_ATTR_RATE]); 5904 idx++; 5905 } 5906 5907 return NL_OK; 5908} 5909 5910 5911static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band) 5912{ 5913 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1]; 5914 struct hostapd_hw_modes *mode; 5915 int ret; 5916 5917 if (phy_info->last_mode != nl_band->nla_type) { 5918 mode = os_realloc_array(phy_info->modes, 5919 *phy_info->num_modes + 1, 5920 sizeof(*mode)); 5921 if (!mode) 5922 return NL_SKIP; 5923 phy_info->modes = mode; 5924 5925 mode = &phy_info->modes[*(phy_info->num_modes)]; 5926 os_memset(mode, 0, sizeof(*mode)); 5927 mode->mode = NUM_HOSTAPD_MODES; 5928 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN | 5929 HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN; 5930 5931 /* 5932 * Unsupported VHT MCS stream is defined as value 3, so the VHT 5933 * MCS RX/TX map must be initialized with 0xffff to mark all 8 5934 * possible streams as unsupported. This will be overridden if 5935 * driver advertises VHT support. 5936 */ 5937 mode->vht_mcs_set[0] = 0xff; 5938 mode->vht_mcs_set[1] = 0xff; 5939 mode->vht_mcs_set[4] = 0xff; 5940 mode->vht_mcs_set[5] = 0xff; 5941 5942 *(phy_info->num_modes) += 1; 5943 phy_info->last_mode = nl_band->nla_type; 5944 phy_info->last_chan_idx = 0; 5945 } else 5946 mode = &phy_info->modes[*(phy_info->num_modes) - 1]; 5947 5948 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band), 5949 nla_len(nl_band), NULL); 5950 5951 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA], 5952 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR], 5953 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY], 5954 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]); 5955 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA], 5956 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]); 5957 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]); 5958 if (ret != NL_OK) 5959 return ret; 5960 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]); 5961 if (ret != NL_OK) 5962 return ret; 5963 5964 return NL_OK; 5965} 5966 5967 5968static int phy_info_handler(struct nl_msg *msg, void *arg) 5969{ 5970 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 5971 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 5972 struct phy_info_arg *phy_info = arg; 5973 struct nlattr *nl_band; 5974 int rem_band; 5975 5976 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 5977 genlmsg_attrlen(gnlh, 0), NULL); 5978 5979 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS]) 5980 return NL_SKIP; 5981 5982 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) 5983 { 5984 int res = phy_info_band(phy_info, nl_band); 5985 if (res != NL_OK) 5986 return res; 5987 } 5988 5989 return NL_SKIP; 5990} 5991 5992 5993static struct hostapd_hw_modes * 5994wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes, 5995 u16 *num_modes) 5996{ 5997 u16 m; 5998 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode; 5999 int i, mode11g_idx = -1; 6000 6001 /* heuristic to set up modes */ 6002 for (m = 0; m < *num_modes; m++) { 6003 if (!modes[m].num_channels) 6004 continue; 6005 if (modes[m].channels[0].freq < 4000) { 6006 modes[m].mode = HOSTAPD_MODE_IEEE80211B; 6007 for (i = 0; i < modes[m].num_rates; i++) { 6008 if (modes[m].rates[i] > 200) { 6009 modes[m].mode = HOSTAPD_MODE_IEEE80211G; 6010 break; 6011 } 6012 } 6013 } else if (modes[m].channels[0].freq > 50000) 6014 modes[m].mode = HOSTAPD_MODE_IEEE80211AD; 6015 else 6016 modes[m].mode = HOSTAPD_MODE_IEEE80211A; 6017 } 6018 6019 /* If only 802.11g mode is included, use it to construct matching 6020 * 802.11b mode data. */ 6021 6022 for (m = 0; m < *num_modes; m++) { 6023 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B) 6024 return modes; /* 802.11b already included */ 6025 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G) 6026 mode11g_idx = m; 6027 } 6028 6029 if (mode11g_idx < 0) 6030 return modes; /* 2.4 GHz band not supported at all */ 6031 6032 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes)); 6033 if (nmodes == NULL) 6034 return modes; /* Could not add 802.11b mode */ 6035 6036 mode = &nmodes[*num_modes]; 6037 os_memset(mode, 0, sizeof(*mode)); 6038 (*num_modes)++; 6039 modes = nmodes; 6040 6041 mode->mode = HOSTAPD_MODE_IEEE80211B; 6042 6043 mode11g = &modes[mode11g_idx]; 6044 mode->num_channels = mode11g->num_channels; 6045 mode->channels = os_malloc(mode11g->num_channels * 6046 sizeof(struct hostapd_channel_data)); 6047 if (mode->channels == NULL) { 6048 (*num_modes)--; 6049 return modes; /* Could not add 802.11b mode */ 6050 } 6051 os_memcpy(mode->channels, mode11g->channels, 6052 mode11g->num_channels * sizeof(struct hostapd_channel_data)); 6053 6054 mode->num_rates = 0; 6055 mode->rates = os_malloc(4 * sizeof(int)); 6056 if (mode->rates == NULL) { 6057 os_free(mode->channels); 6058 (*num_modes)--; 6059 return modes; /* Could not add 802.11b mode */ 6060 } 6061 6062 for (i = 0; i < mode11g->num_rates; i++) { 6063 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 && 6064 mode11g->rates[i] != 55 && mode11g->rates[i] != 110) 6065 continue; 6066 mode->rates[mode->num_rates] = mode11g->rates[i]; 6067 mode->num_rates++; 6068 if (mode->num_rates == 4) 6069 break; 6070 } 6071 6072 if (mode->num_rates == 0) { 6073 os_free(mode->channels); 6074 os_free(mode->rates); 6075 (*num_modes)--; 6076 return modes; /* No 802.11b rates */ 6077 } 6078 6079 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g " 6080 "information"); 6081 6082 return modes; 6083} 6084 6085 6086static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start, 6087 int end) 6088{ 6089 int c; 6090 6091 for (c = 0; c < mode->num_channels; c++) { 6092 struct hostapd_channel_data *chan = &mode->channels[c]; 6093 if (chan->freq - 10 >= start && chan->freq + 10 <= end) 6094 chan->flag |= HOSTAPD_CHAN_HT40; 6095 } 6096} 6097 6098 6099static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start, 6100 int end) 6101{ 6102 int c; 6103 6104 for (c = 0; c < mode->num_channels; c++) { 6105 struct hostapd_channel_data *chan = &mode->channels[c]; 6106 if (!(chan->flag & HOSTAPD_CHAN_HT40)) 6107 continue; 6108 if (chan->freq - 30 >= start && chan->freq - 10 <= end) 6109 chan->flag |= HOSTAPD_CHAN_HT40MINUS; 6110 if (chan->freq + 10 >= start && chan->freq + 30 <= end) 6111 chan->flag |= HOSTAPD_CHAN_HT40PLUS; 6112 } 6113} 6114 6115 6116static void nl80211_reg_rule_max_eirp(struct nlattr *tb[], 6117 struct phy_info_arg *results) 6118{ 6119 u32 start, end, max_eirp; 6120 u16 m; 6121 6122 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6123 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 6124 tb[NL80211_ATTR_POWER_RULE_MAX_EIRP] == NULL) 6125 return; 6126 6127 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6128 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6129 max_eirp = nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]) / 100; 6130 6131 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u mBm", 6132 start, end, max_eirp); 6133 6134 for (m = 0; m < *results->num_modes; m++) { 6135 int c; 6136 struct hostapd_hw_modes *mode = &results->modes[m]; 6137 6138 for (c = 0; c < mode->num_channels; c++) { 6139 struct hostapd_channel_data *chan = &mode->channels[c]; 6140 if ((u32) chan->freq - 10 >= start && 6141 (u32) chan->freq + 10 <= end) 6142 chan->max_tx_power = max_eirp; 6143 } 6144 } 6145} 6146 6147 6148static void nl80211_reg_rule_ht40(struct nlattr *tb[], 6149 struct phy_info_arg *results) 6150{ 6151 u32 start, end, max_bw; 6152 u16 m; 6153 6154 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6155 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 6156 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 6157 return; 6158 6159 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6160 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6161 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6162 6163 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz", 6164 start, end, max_bw); 6165 if (max_bw < 40) 6166 return; 6167 6168 for (m = 0; m < *results->num_modes; m++) { 6169 if (!(results->modes[m].ht_capab & 6170 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6171 continue; 6172 nl80211_set_ht40_mode(&results->modes[m], start, end); 6173 } 6174} 6175 6176 6177static void nl80211_reg_rule_sec(struct nlattr *tb[], 6178 struct phy_info_arg *results) 6179{ 6180 u32 start, end, max_bw; 6181 u16 m; 6182 6183 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6184 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 6185 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 6186 return; 6187 6188 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6189 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6190 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6191 6192 if (max_bw < 20) 6193 return; 6194 6195 for (m = 0; m < *results->num_modes; m++) { 6196 if (!(results->modes[m].ht_capab & 6197 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6198 continue; 6199 nl80211_set_ht40_mode_sec(&results->modes[m], start, end); 6200 } 6201} 6202 6203 6204static void nl80211_set_vht_mode(struct hostapd_hw_modes *mode, int start, 6205 int end) 6206{ 6207 int c; 6208 6209 for (c = 0; c < mode->num_channels; c++) { 6210 struct hostapd_channel_data *chan = &mode->channels[c]; 6211 if (chan->freq - 10 >= start && chan->freq + 70 <= end) 6212 chan->flag |= HOSTAPD_CHAN_VHT_10_70; 6213 6214 if (chan->freq - 30 >= start && chan->freq + 50 <= end) 6215 chan->flag |= HOSTAPD_CHAN_VHT_30_50; 6216 6217 if (chan->freq - 50 >= start && chan->freq + 30 <= end) 6218 chan->flag |= HOSTAPD_CHAN_VHT_50_30; 6219 6220 if (chan->freq - 70 >= start && chan->freq + 10 <= end) 6221 chan->flag |= HOSTAPD_CHAN_VHT_70_10; 6222 } 6223} 6224 6225 6226static void nl80211_reg_rule_vht(struct nlattr *tb[], 6227 struct phy_info_arg *results) 6228{ 6229 u32 start, end, max_bw; 6230 u16 m; 6231 6232 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6233 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 6234 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 6235 return; 6236 6237 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6238 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6239 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6240 6241 if (max_bw < 80) 6242 return; 6243 6244 for (m = 0; m < *results->num_modes; m++) { 6245 if (!(results->modes[m].ht_capab & 6246 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6247 continue; 6248 /* TODO: use a real VHT support indication */ 6249 if (!results->modes[m].vht_capab) 6250 continue; 6251 6252 nl80211_set_vht_mode(&results->modes[m], start, end); 6253 } 6254} 6255 6256 6257static int nl80211_get_reg(struct nl_msg *msg, void *arg) 6258{ 6259 struct phy_info_arg *results = arg; 6260 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 6261 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 6262 struct nlattr *nl_rule; 6263 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1]; 6264 int rem_rule; 6265 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 6266 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, 6267 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, 6268 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, 6269 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, 6270 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, 6271 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, 6272 }; 6273 6274 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 6275 genlmsg_attrlen(gnlh, 0), NULL); 6276 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] || 6277 !tb_msg[NL80211_ATTR_REG_RULES]) { 6278 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information " 6279 "available"); 6280 return NL_SKIP; 6281 } 6282 6283 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s", 6284 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2])); 6285 6286 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6287 { 6288 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6289 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6290 nl80211_reg_rule_ht40(tb_rule, results); 6291 nl80211_reg_rule_max_eirp(tb_rule, results); 6292 } 6293 6294 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6295 { 6296 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6297 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6298 nl80211_reg_rule_sec(tb_rule, results); 6299 } 6300 6301 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6302 { 6303 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6304 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6305 nl80211_reg_rule_vht(tb_rule, results); 6306 } 6307 6308 return NL_SKIP; 6309} 6310 6311 6312static int nl80211_set_regulatory_flags(struct wpa_driver_nl80211_data *drv, 6313 struct phy_info_arg *results) 6314{ 6315 struct nl_msg *msg; 6316 6317 msg = nlmsg_alloc(); 6318 if (!msg) 6319 return -ENOMEM; 6320 6321 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 6322 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results); 6323} 6324 6325 6326static struct hostapd_hw_modes * 6327wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags) 6328{ 6329 u32 feat; 6330 struct i802_bss *bss = priv; 6331 struct wpa_driver_nl80211_data *drv = bss->drv; 6332 struct nl_msg *msg; 6333 struct phy_info_arg result = { 6334 .num_modes = num_modes, 6335 .modes = NULL, 6336 .last_mode = -1, 6337 }; 6338 6339 *num_modes = 0; 6340 *flags = 0; 6341 6342 msg = nlmsg_alloc(); 6343 if (!msg) 6344 return NULL; 6345 6346 feat = get_nl80211_protocol_features(drv); 6347 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 6348 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 6349 else 6350 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 6351 6352 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 6353 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6354 6355 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) { 6356 nl80211_set_regulatory_flags(drv, &result); 6357 return wpa_driver_nl80211_postprocess_modes(result.modes, 6358 num_modes); 6359 } 6360 msg = NULL; 6361 nla_put_failure: 6362 nlmsg_free(msg); 6363 return NULL; 6364} 6365 6366 6367static int wpa_driver_nl80211_send_mntr(struct wpa_driver_nl80211_data *drv, 6368 const void *data, size_t len, 6369 int encrypt, int noack) 6370{ 6371 __u8 rtap_hdr[] = { 6372 0x00, 0x00, /* radiotap version */ 6373 0x0e, 0x00, /* radiotap length */ 6374 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */ 6375 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */ 6376 0x00, /* padding */ 6377 0x00, 0x00, /* RX and TX flags to indicate that */ 6378 0x00, 0x00, /* this is the injected frame directly */ 6379 }; 6380 struct iovec iov[2] = { 6381 { 6382 .iov_base = &rtap_hdr, 6383 .iov_len = sizeof(rtap_hdr), 6384 }, 6385 { 6386 .iov_base = (void *) data, 6387 .iov_len = len, 6388 } 6389 }; 6390 struct msghdr msg = { 6391 .msg_name = NULL, 6392 .msg_namelen = 0, 6393 .msg_iov = iov, 6394 .msg_iovlen = 2, 6395 .msg_control = NULL, 6396 .msg_controllen = 0, 6397 .msg_flags = 0, 6398 }; 6399 int res; 6400 u16 txflags = 0; 6401 6402 if (encrypt) 6403 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP; 6404 6405 if (drv->monitor_sock < 0) { 6406 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available " 6407 "for %s", __func__); 6408 return -1; 6409 } 6410 6411 if (noack) 6412 txflags |= IEEE80211_RADIOTAP_F_TX_NOACK; 6413 WPA_PUT_LE16(&rtap_hdr[12], txflags); 6414 6415 res = sendmsg(drv->monitor_sock, &msg, 0); 6416 if (res < 0) { 6417 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno)); 6418 return -1; 6419 } 6420 return 0; 6421} 6422 6423 6424static int wpa_driver_nl80211_send_frame(struct i802_bss *bss, 6425 const void *data, size_t len, 6426 int encrypt, int noack, 6427 unsigned int freq, int no_cck, 6428 int offchanok, unsigned int wait_time) 6429{ 6430 struct wpa_driver_nl80211_data *drv = bss->drv; 6431 u64 cookie; 6432 int res; 6433 6434 if (freq == 0) { 6435 wpa_printf(MSG_DEBUG, "nl80211: send_frame - Use bss->freq=%u", 6436 bss->freq); 6437 freq = bss->freq; 6438 } 6439 6440 if (drv->use_monitor) { 6441 wpa_printf(MSG_DEBUG, "nl80211: send_frame(freq=%u bss->freq=%u) -> send_mntr", 6442 freq, bss->freq); 6443 return wpa_driver_nl80211_send_mntr(drv, data, len, 6444 encrypt, noack); 6445 } 6446 6447 wpa_printf(MSG_DEBUG, "nl80211: send_frame -> send_frame_cmd"); 6448 res = nl80211_send_frame_cmd(bss, freq, wait_time, data, len, 6449 &cookie, no_cck, noack, offchanok); 6450 if (res == 0 && !noack) { 6451 const struct ieee80211_mgmt *mgmt; 6452 u16 fc; 6453 6454 mgmt = (const struct ieee80211_mgmt *) data; 6455 fc = le_to_host16(mgmt->frame_control); 6456 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6457 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_ACTION) { 6458 wpa_printf(MSG_MSGDUMP, 6459 "nl80211: Update send_action_cookie from 0x%llx to 0x%llx", 6460 (long long unsigned int) 6461 drv->send_action_cookie, 6462 (long long unsigned int) cookie); 6463 drv->send_action_cookie = cookie; 6464 } 6465 } 6466 6467 return res; 6468} 6469 6470 6471static int wpa_driver_nl80211_send_mlme(struct i802_bss *bss, const u8 *data, 6472 size_t data_len, int noack, 6473 unsigned int freq, int no_cck, 6474 int offchanok, 6475 unsigned int wait_time) 6476{ 6477 struct wpa_driver_nl80211_data *drv = bss->drv; 6478 struct ieee80211_mgmt *mgmt; 6479 int encrypt = 1; 6480 u16 fc; 6481 6482 mgmt = (struct ieee80211_mgmt *) data; 6483 fc = le_to_host16(mgmt->frame_control); 6484 wpa_printf(MSG_DEBUG, "nl80211: send_mlme - noack=%d freq=%u no_cck=%d offchanok=%d wait_time=%u fc=0x%x nlmode=%d", 6485 noack, freq, no_cck, offchanok, wait_time, fc, drv->nlmode); 6486 6487 if ((is_sta_interface(drv->nlmode) || 6488 drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) && 6489 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6490 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) { 6491 /* 6492 * The use of last_mgmt_freq is a bit of a hack, 6493 * but it works due to the single-threaded nature 6494 * of wpa_supplicant. 6495 */ 6496 if (freq == 0) { 6497 wpa_printf(MSG_DEBUG, "nl80211: Use last_mgmt_freq=%d", 6498 drv->last_mgmt_freq); 6499 freq = drv->last_mgmt_freq; 6500 } 6501 return nl80211_send_frame_cmd(bss, freq, 0, 6502 data, data_len, NULL, 1, noack, 6503 1); 6504 } 6505 6506 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) { 6507 if (freq == 0) { 6508 wpa_printf(MSG_DEBUG, "nl80211: Use bss->freq=%d", 6509 bss->freq); 6510 freq = bss->freq; 6511 } 6512 return nl80211_send_frame_cmd(bss, freq, 6513 (int) freq == bss->freq ? 0 : 6514 wait_time, 6515 data, data_len, 6516 &drv->send_action_cookie, 6517 no_cck, noack, offchanok); 6518 } 6519 6520 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6521 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) { 6522 /* 6523 * Only one of the authentication frame types is encrypted. 6524 * In order for static WEP encryption to work properly (i.e., 6525 * to not encrypt the frame), we need to tell mac80211 about 6526 * the frames that must not be encrypted. 6527 */ 6528 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg); 6529 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction); 6530 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3) 6531 encrypt = 0; 6532 } 6533 6534 wpa_printf(MSG_DEBUG, "nl80211: send_mlme -> send_frame"); 6535 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 6536 noack, freq, no_cck, offchanok, 6537 wait_time); 6538} 6539 6540 6541static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble, 6542 int slot, int ht_opmode, int ap_isolate, 6543 int *basic_rates) 6544{ 6545 struct wpa_driver_nl80211_data *drv = bss->drv; 6546 struct nl_msg *msg; 6547 6548 msg = nlmsg_alloc(); 6549 if (!msg) 6550 return -ENOMEM; 6551 6552 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS); 6553 6554 if (cts >= 0) 6555 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts); 6556 if (preamble >= 0) 6557 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble); 6558 if (slot >= 0) 6559 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot); 6560 if (ht_opmode >= 0) 6561 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode); 6562 if (ap_isolate >= 0) 6563 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate); 6564 6565 if (basic_rates) { 6566 u8 rates[NL80211_MAX_SUPP_RATES]; 6567 u8 rates_len = 0; 6568 int i; 6569 6570 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; 6571 i++) 6572 rates[rates_len++] = basic_rates[i] / 5; 6573 6574 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates); 6575 } 6576 6577 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 6578 6579 return send_and_recv_msgs(drv, msg, NULL, NULL); 6580 nla_put_failure: 6581 nlmsg_free(msg); 6582 return -ENOBUFS; 6583} 6584 6585 6586static int wpa_driver_nl80211_set_acl(void *priv, 6587 struct hostapd_acl_params *params) 6588{ 6589 struct i802_bss *bss = priv; 6590 struct wpa_driver_nl80211_data *drv = bss->drv; 6591 struct nl_msg *msg; 6592 struct nlattr *acl; 6593 unsigned int i; 6594 int ret = 0; 6595 6596 if (!(drv->capa.max_acl_mac_addrs)) 6597 return -ENOTSUP; 6598 6599 if (params->num_mac_acl > drv->capa.max_acl_mac_addrs) 6600 return -ENOTSUP; 6601 6602 msg = nlmsg_alloc(); 6603 if (!msg) 6604 return -ENOMEM; 6605 6606 wpa_printf(MSG_DEBUG, "nl80211: Set %s ACL (num_mac_acl=%u)", 6607 params->acl_policy ? "Accept" : "Deny", params->num_mac_acl); 6608 6609 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_MAC_ACL); 6610 6611 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6612 6613 NLA_PUT_U32(msg, NL80211_ATTR_ACL_POLICY, params->acl_policy ? 6614 NL80211_ACL_POLICY_DENY_UNLESS_LISTED : 6615 NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED); 6616 6617 acl = nla_nest_start(msg, NL80211_ATTR_MAC_ADDRS); 6618 if (acl == NULL) 6619 goto nla_put_failure; 6620 6621 for (i = 0; i < params->num_mac_acl; i++) 6622 NLA_PUT(msg, i + 1, ETH_ALEN, params->mac_acl[i].addr); 6623 6624 nla_nest_end(msg, acl); 6625 6626 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6627 msg = NULL; 6628 if (ret) { 6629 wpa_printf(MSG_DEBUG, "nl80211: Failed to set MAC ACL: %d (%s)", 6630 ret, strerror(-ret)); 6631 } 6632 6633nla_put_failure: 6634 nlmsg_free(msg); 6635 6636 return ret; 6637} 6638 6639 6640static int wpa_driver_nl80211_set_ap(void *priv, 6641 struct wpa_driver_ap_params *params) 6642{ 6643 struct i802_bss *bss = priv; 6644 struct wpa_driver_nl80211_data *drv = bss->drv; 6645 struct nl_msg *msg; 6646 u8 cmd = NL80211_CMD_NEW_BEACON; 6647 int ret; 6648 int beacon_set; 6649 int ifindex = if_nametoindex(bss->ifname); 6650 int num_suites; 6651 u32 suites[10]; 6652 u32 ver; 6653 6654 beacon_set = bss->beacon_set; 6655 6656 msg = nlmsg_alloc(); 6657 if (!msg) 6658 return -ENOMEM; 6659 6660 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)", 6661 beacon_set); 6662 if (beacon_set) 6663 cmd = NL80211_CMD_SET_BEACON; 6664 6665 nl80211_cmd(drv, msg, 0, cmd); 6666 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon head", 6667 params->head, params->head_len); 6668 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head); 6669 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon tail", 6670 params->tail, params->tail_len); 6671 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail); 6672 wpa_printf(MSG_DEBUG, "nl80211: ifindex=%d", ifindex); 6673 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 6674 wpa_printf(MSG_DEBUG, "nl80211: beacon_int=%d", params->beacon_int); 6675 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int); 6676 wpa_printf(MSG_DEBUG, "nl80211: dtim_period=%d", params->dtim_period); 6677 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period); 6678 wpa_hexdump_ascii(MSG_DEBUG, "nl80211: ssid", 6679 params->ssid, params->ssid_len); 6680 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 6681 params->ssid); 6682 if (params->proberesp && params->proberesp_len) { 6683 wpa_hexdump(MSG_DEBUG, "nl80211: proberesp (offload)", 6684 params->proberesp, params->proberesp_len); 6685 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len, 6686 params->proberesp); 6687 } 6688 switch (params->hide_ssid) { 6689 case NO_SSID_HIDING: 6690 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID not in use"); 6691 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 6692 NL80211_HIDDEN_SSID_NOT_IN_USE); 6693 break; 6694 case HIDDEN_SSID_ZERO_LEN: 6695 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero len"); 6696 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 6697 NL80211_HIDDEN_SSID_ZERO_LEN); 6698 break; 6699 case HIDDEN_SSID_ZERO_CONTENTS: 6700 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero contents"); 6701 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 6702 NL80211_HIDDEN_SSID_ZERO_CONTENTS); 6703 break; 6704 } 6705 wpa_printf(MSG_DEBUG, "nl80211: privacy=%d", params->privacy); 6706 if (params->privacy) 6707 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 6708 wpa_printf(MSG_DEBUG, "nl80211: auth_algs=0x%x", params->auth_algs); 6709 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) == 6710 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) { 6711 /* Leave out the attribute */ 6712 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED) 6713 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 6714 NL80211_AUTHTYPE_SHARED_KEY); 6715 else 6716 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 6717 NL80211_AUTHTYPE_OPEN_SYSTEM); 6718 6719 wpa_printf(MSG_DEBUG, "nl80211: wpa_version=0x%x", params->wpa_version); 6720 ver = 0; 6721 if (params->wpa_version & WPA_PROTO_WPA) 6722 ver |= NL80211_WPA_VERSION_1; 6723 if (params->wpa_version & WPA_PROTO_RSN) 6724 ver |= NL80211_WPA_VERSION_2; 6725 if (ver) 6726 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 6727 6728 wpa_printf(MSG_DEBUG, "nl80211: key_mgmt_suites=0x%x", 6729 params->key_mgmt_suites); 6730 num_suites = 0; 6731 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X) 6732 suites[num_suites++] = WLAN_AKM_SUITE_8021X; 6733 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK) 6734 suites[num_suites++] = WLAN_AKM_SUITE_PSK; 6735 if (num_suites) { 6736 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES, 6737 num_suites * sizeof(u32), suites); 6738 } 6739 6740 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X && 6741 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)) 6742 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT); 6743 6744 wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x", 6745 params->pairwise_ciphers); 6746 num_suites = 0; 6747 if (params->pairwise_ciphers & WPA_CIPHER_CCMP) 6748 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP; 6749 if (params->pairwise_ciphers & WPA_CIPHER_GCMP) 6750 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP; 6751 if (params->pairwise_ciphers & WPA_CIPHER_TKIP) 6752 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP; 6753 if (params->pairwise_ciphers & WPA_CIPHER_WEP104) 6754 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104; 6755 if (params->pairwise_ciphers & WPA_CIPHER_WEP40) 6756 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40; 6757 if (num_suites) { 6758 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, 6759 num_suites * sizeof(u32), suites); 6760 } 6761 6762 wpa_printf(MSG_DEBUG, "nl80211: group_cipher=0x%x", 6763 params->group_cipher); 6764 switch (params->group_cipher) { 6765 case WPA_CIPHER_CCMP: 6766 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6767 WLAN_CIPHER_SUITE_CCMP); 6768 break; 6769 case WPA_CIPHER_GCMP: 6770 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6771 WLAN_CIPHER_SUITE_GCMP); 6772 break; 6773 case WPA_CIPHER_TKIP: 6774 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6775 WLAN_CIPHER_SUITE_TKIP); 6776 break; 6777 case WPA_CIPHER_WEP104: 6778 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6779 WLAN_CIPHER_SUITE_WEP104); 6780 break; 6781 case WPA_CIPHER_WEP40: 6782 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6783 WLAN_CIPHER_SUITE_WEP40); 6784 break; 6785 } 6786 6787 if (params->beacon_ies) { 6788 wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies", 6789 params->beacon_ies); 6790 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies), 6791 wpabuf_head(params->beacon_ies)); 6792 } 6793 if (params->proberesp_ies) { 6794 wpa_hexdump_buf(MSG_DEBUG, "nl80211: proberesp_ies", 6795 params->proberesp_ies); 6796 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, 6797 wpabuf_len(params->proberesp_ies), 6798 wpabuf_head(params->proberesp_ies)); 6799 } 6800 if (params->assocresp_ies) { 6801 wpa_hexdump_buf(MSG_DEBUG, "nl80211: assocresp_ies", 6802 params->assocresp_ies); 6803 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP, 6804 wpabuf_len(params->assocresp_ies), 6805 wpabuf_head(params->assocresp_ies)); 6806 } 6807 6808 if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) { 6809 wpa_printf(MSG_DEBUG, "nl80211: ap_max_inactivity=%d", 6810 params->ap_max_inactivity); 6811 NLA_PUT_U16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT, 6812 params->ap_max_inactivity); 6813 } 6814 6815 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6816 if (ret) { 6817 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)", 6818 ret, strerror(-ret)); 6819 } else { 6820 bss->beacon_set = 1; 6821 nl80211_set_bss(bss, params->cts_protect, params->preamble, 6822 params->short_slot_time, params->ht_opmode, 6823 params->isolate, params->basic_rates); 6824 } 6825 return ret; 6826 nla_put_failure: 6827 nlmsg_free(msg); 6828 return -ENOBUFS; 6829} 6830 6831 6832static int nl80211_put_freq_params(struct nl_msg *msg, 6833 struct hostapd_freq_params *freq) 6834{ 6835 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); 6836 if (freq->vht_enabled) { 6837 switch (freq->bandwidth) { 6838 case 20: 6839 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6840 NL80211_CHAN_WIDTH_20); 6841 break; 6842 case 40: 6843 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6844 NL80211_CHAN_WIDTH_40); 6845 break; 6846 case 80: 6847 if (freq->center_freq2) 6848 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6849 NL80211_CHAN_WIDTH_80P80); 6850 else 6851 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6852 NL80211_CHAN_WIDTH_80); 6853 break; 6854 case 160: 6855 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6856 NL80211_CHAN_WIDTH_160); 6857 break; 6858 default: 6859 return -EINVAL; 6860 } 6861 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); 6862 if (freq->center_freq2) 6863 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, 6864 freq->center_freq2); 6865 } else if (freq->ht_enabled) { 6866 switch (freq->sec_channel_offset) { 6867 case -1: 6868 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6869 NL80211_CHAN_HT40MINUS); 6870 break; 6871 case 1: 6872 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6873 NL80211_CHAN_HT40PLUS); 6874 break; 6875 default: 6876 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6877 NL80211_CHAN_HT20); 6878 break; 6879 } 6880 } 6881 return 0; 6882 6883nla_put_failure: 6884 return -ENOBUFS; 6885} 6886 6887 6888static int wpa_driver_nl80211_set_freq(struct i802_bss *bss, 6889 struct hostapd_freq_params *freq) 6890{ 6891 struct wpa_driver_nl80211_data *drv = bss->drv; 6892 struct nl_msg *msg; 6893 int ret; 6894 6895 wpa_printf(MSG_DEBUG, 6896 "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d, bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)", 6897 freq->freq, freq->ht_enabled, freq->vht_enabled, 6898 freq->bandwidth, freq->center_freq1, freq->center_freq2); 6899 msg = nlmsg_alloc(); 6900 if (!msg) 6901 return -1; 6902 6903 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 6904 6905 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6906 if (nl80211_put_freq_params(msg, freq) < 0) 6907 goto nla_put_failure; 6908 6909 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6910 msg = NULL; 6911 if (ret == 0) { 6912 bss->freq = freq->freq; 6913 return 0; 6914 } 6915 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): " 6916 "%d (%s)", freq->freq, ret, strerror(-ret)); 6917nla_put_failure: 6918 nlmsg_free(msg); 6919 return -1; 6920} 6921 6922 6923static u32 sta_flags_nl80211(int flags) 6924{ 6925 u32 f = 0; 6926 6927 if (flags & WPA_STA_AUTHORIZED) 6928 f |= BIT(NL80211_STA_FLAG_AUTHORIZED); 6929 if (flags & WPA_STA_WMM) 6930 f |= BIT(NL80211_STA_FLAG_WME); 6931 if (flags & WPA_STA_SHORT_PREAMBLE) 6932 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); 6933 if (flags & WPA_STA_MFP) 6934 f |= BIT(NL80211_STA_FLAG_MFP); 6935 if (flags & WPA_STA_TDLS_PEER) 6936 f |= BIT(NL80211_STA_FLAG_TDLS_PEER); 6937 6938 return f; 6939} 6940 6941 6942static int wpa_driver_nl80211_sta_add(void *priv, 6943 struct hostapd_sta_add_params *params) 6944{ 6945 struct i802_bss *bss = priv; 6946 struct wpa_driver_nl80211_data *drv = bss->drv; 6947 struct nl_msg *msg; 6948 struct nl80211_sta_flag_update upd; 6949 int ret = -ENOBUFS; 6950 6951 if ((params->flags & WPA_STA_TDLS_PEER) && 6952 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 6953 return -EOPNOTSUPP; 6954 6955 msg = nlmsg_alloc(); 6956 if (!msg) 6957 return -ENOMEM; 6958 6959 wpa_printf(MSG_DEBUG, "nl80211: %s STA " MACSTR, 6960 params->set ? "Set" : "Add", MAC2STR(params->addr)); 6961 nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION : 6962 NL80211_CMD_NEW_STATION); 6963 6964 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 6965 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr); 6966 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len, 6967 params->supp_rates); 6968 wpa_hexdump(MSG_DEBUG, " * supported rates", params->supp_rates, 6969 params->supp_rates_len); 6970 if (!params->set) { 6971 if (params->aid) { 6972 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid); 6973 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid); 6974 } else { 6975 /* 6976 * cfg80211 validates that AID is non-zero, so we have 6977 * to make this a non-zero value for the TDLS case where 6978 * a dummy STA entry is used for now. 6979 */ 6980 wpa_printf(MSG_DEBUG, " * aid=1 (TDLS workaround)"); 6981 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, 1); 6982 } 6983 wpa_printf(MSG_DEBUG, " * listen_interval=%u", 6984 params->listen_interval); 6985 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, 6986 params->listen_interval); 6987 } else if (params->aid && (params->flags & WPA_STA_TDLS_PEER)) { 6988 wpa_printf(MSG_DEBUG, " * peer_aid=%u", params->aid); 6989 NLA_PUT_U16(msg, NL80211_ATTR_PEER_AID, params->aid); 6990 } 6991 if (params->ht_capabilities) { 6992 wpa_hexdump(MSG_DEBUG, " * ht_capabilities", 6993 (u8 *) params->ht_capabilities, 6994 sizeof(*params->ht_capabilities)); 6995 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, 6996 sizeof(*params->ht_capabilities), 6997 params->ht_capabilities); 6998 } 6999 7000 if (params->vht_capabilities) { 7001 wpa_hexdump(MSG_DEBUG, " * vht_capabilities", 7002 (u8 *) params->vht_capabilities, 7003 sizeof(*params->vht_capabilities)); 7004 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, 7005 sizeof(*params->vht_capabilities), 7006 params->vht_capabilities); 7007 } 7008 7009 wpa_printf(MSG_DEBUG, " * capability=0x%x", params->capability); 7010 NLA_PUT_U16(msg, NL80211_ATTR_STA_CAPABILITY, params->capability); 7011 7012 if (params->ext_capab) { 7013 wpa_hexdump(MSG_DEBUG, " * ext_capab", 7014 params->ext_capab, params->ext_capab_len); 7015 NLA_PUT(msg, NL80211_ATTR_STA_EXT_CAPABILITY, 7016 params->ext_capab_len, params->ext_capab); 7017 } 7018 7019 os_memset(&upd, 0, sizeof(upd)); 7020 upd.mask = sta_flags_nl80211(params->flags); 7021 upd.set = upd.mask; 7022 wpa_printf(MSG_DEBUG, " * flags set=0x%x mask=0x%x", 7023 upd.set, upd.mask); 7024 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 7025 7026 if (params->flags & WPA_STA_WMM) { 7027 struct nlattr *wme = nla_nest_start(msg, NL80211_ATTR_STA_WME); 7028 7029 if (!wme) 7030 goto nla_put_failure; 7031 7032 wpa_printf(MSG_DEBUG, " * qosinfo=0x%x", params->qosinfo); 7033 NLA_PUT_U8(msg, NL80211_STA_WME_UAPSD_QUEUES, 7034 params->qosinfo & WMM_QOSINFO_STA_AC_MASK); 7035 NLA_PUT_U8(msg, NL80211_STA_WME_MAX_SP, 7036 (params->qosinfo >> WMM_QOSINFO_STA_SP_SHIFT) & 7037 WMM_QOSINFO_STA_SP_MASK); 7038 nla_nest_end(msg, wme); 7039 } 7040 7041 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7042 msg = NULL; 7043 if (ret) 7044 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION " 7045 "result: %d (%s)", params->set ? "SET" : "NEW", ret, 7046 strerror(-ret)); 7047 if (ret == -EEXIST) 7048 ret = 0; 7049 nla_put_failure: 7050 nlmsg_free(msg); 7051 return ret; 7052} 7053 7054 7055static int wpa_driver_nl80211_sta_remove(struct i802_bss *bss, const u8 *addr) 7056{ 7057 struct wpa_driver_nl80211_data *drv = bss->drv; 7058 struct nl_msg *msg; 7059 int ret; 7060 7061 msg = nlmsg_alloc(); 7062 if (!msg) 7063 return -ENOMEM; 7064 7065 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 7066 7067 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 7068 if_nametoindex(bss->ifname)); 7069 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 7070 7071 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7072 wpa_printf(MSG_DEBUG, "nl80211: sta_remove -> DEL_STATION %s " MACSTR 7073 " --> %d (%s)", 7074 bss->ifname, MAC2STR(addr), ret, strerror(-ret)); 7075 if (ret == -ENOENT) 7076 return 0; 7077 return ret; 7078 nla_put_failure: 7079 nlmsg_free(msg); 7080 return -ENOBUFS; 7081} 7082 7083 7084static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, 7085 int ifidx) 7086{ 7087 struct nl_msg *msg; 7088 7089 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx); 7090 7091 /* stop listening for EAPOL on this interface */ 7092 del_ifidx(drv, ifidx); 7093 7094 msg = nlmsg_alloc(); 7095 if (!msg) 7096 goto nla_put_failure; 7097 7098 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 7099 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx); 7100 7101 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 7102 return; 7103 msg = NULL; 7104 nla_put_failure: 7105 nlmsg_free(msg); 7106 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx); 7107} 7108 7109 7110static const char * nl80211_iftype_str(enum nl80211_iftype mode) 7111{ 7112 switch (mode) { 7113 case NL80211_IFTYPE_ADHOC: 7114 return "ADHOC"; 7115 case NL80211_IFTYPE_STATION: 7116 return "STATION"; 7117 case NL80211_IFTYPE_AP: 7118 return "AP"; 7119 case NL80211_IFTYPE_AP_VLAN: 7120 return "AP_VLAN"; 7121 case NL80211_IFTYPE_WDS: 7122 return "WDS"; 7123 case NL80211_IFTYPE_MONITOR: 7124 return "MONITOR"; 7125 case NL80211_IFTYPE_MESH_POINT: 7126 return "MESH_POINT"; 7127 case NL80211_IFTYPE_P2P_CLIENT: 7128 return "P2P_CLIENT"; 7129 case NL80211_IFTYPE_P2P_GO: 7130 return "P2P_GO"; 7131 case NL80211_IFTYPE_P2P_DEVICE: 7132 return "P2P_DEVICE"; 7133 default: 7134 return "unknown"; 7135 } 7136} 7137 7138 7139static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv, 7140 const char *ifname, 7141 enum nl80211_iftype iftype, 7142 const u8 *addr, int wds, 7143 int (*handler)(struct nl_msg *, void *), 7144 void *arg) 7145{ 7146 struct nl_msg *msg; 7147 int ifidx; 7148 int ret = -ENOBUFS; 7149 7150 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)", 7151 iftype, nl80211_iftype_str(iftype)); 7152 7153 msg = nlmsg_alloc(); 7154 if (!msg) 7155 return -1; 7156 7157 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE); 7158 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 7159 goto nla_put_failure; 7160 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname); 7161 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype); 7162 7163 if (iftype == NL80211_IFTYPE_MONITOR) { 7164 struct nlattr *flags; 7165 7166 flags = nla_nest_start(msg, NL80211_ATTR_MNTR_FLAGS); 7167 if (!flags) 7168 goto nla_put_failure; 7169 7170 NLA_PUT_FLAG(msg, NL80211_MNTR_FLAG_COOK_FRAMES); 7171 7172 nla_nest_end(msg, flags); 7173 } else if (wds) { 7174 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds); 7175 } 7176 7177 ret = send_and_recv_msgs(drv, msg, handler, arg); 7178 msg = NULL; 7179 if (ret) { 7180 nla_put_failure: 7181 nlmsg_free(msg); 7182 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)", 7183 ifname, ret, strerror(-ret)); 7184 return ret; 7185 } 7186 7187 if (iftype == NL80211_IFTYPE_P2P_DEVICE) 7188 return 0; 7189 7190 ifidx = if_nametoindex(ifname); 7191 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d", 7192 ifname, ifidx); 7193 7194 if (ifidx <= 0) 7195 return -1; 7196 7197 /* start listening for EAPOL on this interface */ 7198 add_ifidx(drv, ifidx); 7199 7200 if (addr && iftype != NL80211_IFTYPE_MONITOR && 7201 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) { 7202 nl80211_remove_iface(drv, ifidx); 7203 return -1; 7204 } 7205 7206 return ifidx; 7207} 7208 7209 7210static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv, 7211 const char *ifname, enum nl80211_iftype iftype, 7212 const u8 *addr, int wds, 7213 int (*handler)(struct nl_msg *, void *), 7214 void *arg, int use_existing) 7215{ 7216 int ret; 7217 7218 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds, handler, 7219 arg); 7220 7221 /* if error occurred and interface exists already */ 7222 if (ret == -ENFILE && if_nametoindex(ifname)) { 7223 if (use_existing) { 7224 wpa_printf(MSG_DEBUG, "nl80211: Continue using existing interface %s", 7225 ifname); 7226 return -ENFILE; 7227 } 7228 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname); 7229 7230 /* Try to remove the interface that was already there. */ 7231 nl80211_remove_iface(drv, if_nametoindex(ifname)); 7232 7233 /* Try to create the interface again */ 7234 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, 7235 wds, handler, arg); 7236 } 7237 7238 if (ret >= 0 && is_p2p_net_interface(iftype)) 7239 nl80211_disable_11b_rates(drv, ret, 1); 7240 7241 return ret; 7242} 7243 7244 7245static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok) 7246{ 7247 struct ieee80211_hdr *hdr; 7248 u16 fc; 7249 union wpa_event_data event; 7250 7251 hdr = (struct ieee80211_hdr *) buf; 7252 fc = le_to_host16(hdr->frame_control); 7253 7254 os_memset(&event, 0, sizeof(event)); 7255 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 7256 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 7257 event.tx_status.dst = hdr->addr1; 7258 event.tx_status.data = buf; 7259 event.tx_status.data_len = len; 7260 event.tx_status.ack = ok; 7261 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event); 7262} 7263 7264 7265static void from_unknown_sta(struct wpa_driver_nl80211_data *drv, 7266 u8 *buf, size_t len) 7267{ 7268 struct ieee80211_hdr *hdr = (void *)buf; 7269 u16 fc; 7270 union wpa_event_data event; 7271 7272 if (len < sizeof(*hdr)) 7273 return; 7274 7275 fc = le_to_host16(hdr->frame_control); 7276 7277 os_memset(&event, 0, sizeof(event)); 7278 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len); 7279 event.rx_from_unknown.addr = hdr->addr2; 7280 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) == 7281 (WLAN_FC_FROMDS | WLAN_FC_TODS); 7282 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 7283} 7284 7285 7286static void handle_frame(struct wpa_driver_nl80211_data *drv, 7287 u8 *buf, size_t len, int datarate, int ssi_signal) 7288{ 7289 struct ieee80211_hdr *hdr; 7290 u16 fc; 7291 union wpa_event_data event; 7292 7293 hdr = (struct ieee80211_hdr *) buf; 7294 fc = le_to_host16(hdr->frame_control); 7295 7296 switch (WLAN_FC_GET_TYPE(fc)) { 7297 case WLAN_FC_TYPE_MGMT: 7298 os_memset(&event, 0, sizeof(event)); 7299 event.rx_mgmt.frame = buf; 7300 event.rx_mgmt.frame_len = len; 7301 event.rx_mgmt.datarate = datarate; 7302 event.rx_mgmt.ssi_signal = ssi_signal; 7303 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 7304 break; 7305 case WLAN_FC_TYPE_CTRL: 7306 /* can only get here with PS-Poll frames */ 7307 wpa_printf(MSG_DEBUG, "CTRL"); 7308 from_unknown_sta(drv, buf, len); 7309 break; 7310 case WLAN_FC_TYPE_DATA: 7311 from_unknown_sta(drv, buf, len); 7312 break; 7313 } 7314} 7315 7316 7317static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx) 7318{ 7319 struct wpa_driver_nl80211_data *drv = eloop_ctx; 7320 int len; 7321 unsigned char buf[3000]; 7322 struct ieee80211_radiotap_iterator iter; 7323 int ret; 7324 int datarate = 0, ssi_signal = 0; 7325 int injected = 0, failed = 0, rxflags = 0; 7326 7327 len = recv(sock, buf, sizeof(buf), 0); 7328 if (len < 0) { 7329 wpa_printf(MSG_ERROR, "nl80211: Monitor socket recv failed: %s", 7330 strerror(errno)); 7331 return; 7332 } 7333 7334 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) { 7335 wpa_printf(MSG_INFO, "nl80211: received invalid radiotap frame"); 7336 return; 7337 } 7338 7339 while (1) { 7340 ret = ieee80211_radiotap_iterator_next(&iter); 7341 if (ret == -ENOENT) 7342 break; 7343 if (ret) { 7344 wpa_printf(MSG_INFO, "nl80211: received invalid radiotap frame (%d)", 7345 ret); 7346 return; 7347 } 7348 switch (iter.this_arg_index) { 7349 case IEEE80211_RADIOTAP_FLAGS: 7350 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS) 7351 len -= 4; 7352 break; 7353 case IEEE80211_RADIOTAP_RX_FLAGS: 7354 rxflags = 1; 7355 break; 7356 case IEEE80211_RADIOTAP_TX_FLAGS: 7357 injected = 1; 7358 failed = le_to_host16((*(uint16_t *) iter.this_arg)) & 7359 IEEE80211_RADIOTAP_F_TX_FAIL; 7360 break; 7361 case IEEE80211_RADIOTAP_DATA_RETRIES: 7362 break; 7363 case IEEE80211_RADIOTAP_CHANNEL: 7364 /* TODO: convert from freq/flags to channel number */ 7365 break; 7366 case IEEE80211_RADIOTAP_RATE: 7367 datarate = *iter.this_arg * 5; 7368 break; 7369 case IEEE80211_RADIOTAP_DBM_ANTSIGNAL: 7370 ssi_signal = (s8) *iter.this_arg; 7371 break; 7372 } 7373 } 7374 7375 if (rxflags && injected) 7376 return; 7377 7378 if (!injected) 7379 handle_frame(drv, buf + iter.max_length, 7380 len - iter.max_length, datarate, ssi_signal); 7381 else 7382 handle_tx_callback(drv->ctx, buf + iter.max_length, 7383 len - iter.max_length, !failed); 7384} 7385 7386 7387/* 7388 * we post-process the filter code later and rewrite 7389 * this to the offset to the last instruction 7390 */ 7391#define PASS 0xFF 7392#define FAIL 0xFE 7393 7394static struct sock_filter msock_filter_insns[] = { 7395 /* 7396 * do a little-endian load of the radiotap length field 7397 */ 7398 /* load lower byte into A */ 7399 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2), 7400 /* put it into X (== index register) */ 7401 BPF_STMT(BPF_MISC| BPF_TAX, 0), 7402 /* load upper byte into A */ 7403 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3), 7404 /* left-shift it by 8 */ 7405 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8), 7406 /* or with X */ 7407 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0), 7408 /* put result into X */ 7409 BPF_STMT(BPF_MISC| BPF_TAX, 0), 7410 7411 /* 7412 * Allow management frames through, this also gives us those 7413 * management frames that we sent ourselves with status 7414 */ 7415 /* load the lower byte of the IEEE 802.11 frame control field */ 7416 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7417 /* mask off frame type and version */ 7418 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF), 7419 /* accept frame if it's both 0, fall through otherwise */ 7420 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0), 7421 7422 /* 7423 * TODO: add a bit to radiotap RX flags that indicates 7424 * that the sending station is not associated, then 7425 * add a filter here that filters on our DA and that flag 7426 * to allow us to deauth frames to that bad station. 7427 * 7428 * For now allow all To DS data frames through. 7429 */ 7430 /* load the IEEE 802.11 frame control field */ 7431 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0), 7432 /* mask off frame type, version and DS status */ 7433 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03), 7434 /* accept frame if version 0, type 2 and To DS, fall through otherwise 7435 */ 7436 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0), 7437 7438#if 0 7439 /* 7440 * drop non-data frames 7441 */ 7442 /* load the lower byte of the frame control field */ 7443 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7444 /* mask off QoS bit */ 7445 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c), 7446 /* drop non-data frames */ 7447 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL), 7448#endif 7449 /* load the upper byte of the frame control field */ 7450 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1), 7451 /* mask off toDS/fromDS */ 7452 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03), 7453 /* accept WDS frames */ 7454 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0), 7455 7456 /* 7457 * add header length to index 7458 */ 7459 /* load the lower byte of the frame control field */ 7460 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7461 /* mask off QoS bit */ 7462 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80), 7463 /* right shift it by 6 to give 0 or 2 */ 7464 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6), 7465 /* add data frame header length */ 7466 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24), 7467 /* add index, was start of 802.11 header */ 7468 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), 7469 /* move to index, now start of LL header */ 7470 BPF_STMT(BPF_MISC | BPF_TAX, 0), 7471 7472 /* 7473 * Accept empty data frames, we use those for 7474 * polling activity. 7475 */ 7476 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0), 7477 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0), 7478 7479 /* 7480 * Accept EAPOL frames 7481 */ 7482 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0), 7483 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL), 7484 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4), 7485 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL), 7486 7487 /* keep these last two statements or change the code below */ 7488 /* return 0 == "DROP" */ 7489 BPF_STMT(BPF_RET | BPF_K, 0), 7490 /* return ~0 == "keep all" */ 7491 BPF_STMT(BPF_RET | BPF_K, ~0), 7492}; 7493 7494static struct sock_fprog msock_filter = { 7495 .len = ARRAY_SIZE(msock_filter_insns), 7496 .filter = msock_filter_insns, 7497}; 7498 7499 7500static int add_monitor_filter(int s) 7501{ 7502 int idx; 7503 7504 /* rewrite all PASS/FAIL jump offsets */ 7505 for (idx = 0; idx < msock_filter.len; idx++) { 7506 struct sock_filter *insn = &msock_filter_insns[idx]; 7507 7508 if (BPF_CLASS(insn->code) == BPF_JMP) { 7509 if (insn->code == (BPF_JMP|BPF_JA)) { 7510 if (insn->k == PASS) 7511 insn->k = msock_filter.len - idx - 2; 7512 else if (insn->k == FAIL) 7513 insn->k = msock_filter.len - idx - 3; 7514 } 7515 7516 if (insn->jt == PASS) 7517 insn->jt = msock_filter.len - idx - 2; 7518 else if (insn->jt == FAIL) 7519 insn->jt = msock_filter.len - idx - 3; 7520 7521 if (insn->jf == PASS) 7522 insn->jf = msock_filter.len - idx - 2; 7523 else if (insn->jf == FAIL) 7524 insn->jf = msock_filter.len - idx - 3; 7525 } 7526 } 7527 7528 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER, 7529 &msock_filter, sizeof(msock_filter))) { 7530 wpa_printf(MSG_ERROR, "nl80211: setsockopt(SO_ATTACH_FILTER) failed: %s", 7531 strerror(errno)); 7532 return -1; 7533 } 7534 7535 return 0; 7536} 7537 7538 7539static void nl80211_remove_monitor_interface( 7540 struct wpa_driver_nl80211_data *drv) 7541{ 7542 if (drv->monitor_refcount > 0) 7543 drv->monitor_refcount--; 7544 wpa_printf(MSG_DEBUG, "nl80211: Remove monitor interface: refcount=%d", 7545 drv->monitor_refcount); 7546 if (drv->monitor_refcount > 0) 7547 return; 7548 7549 if (drv->monitor_ifidx >= 0) { 7550 nl80211_remove_iface(drv, drv->monitor_ifidx); 7551 drv->monitor_ifidx = -1; 7552 } 7553 if (drv->monitor_sock >= 0) { 7554 eloop_unregister_read_sock(drv->monitor_sock); 7555 close(drv->monitor_sock); 7556 drv->monitor_sock = -1; 7557 } 7558} 7559 7560 7561static int 7562nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv) 7563{ 7564 char buf[IFNAMSIZ]; 7565 struct sockaddr_ll ll; 7566 int optval; 7567 socklen_t optlen; 7568 7569 if (drv->monitor_ifidx >= 0) { 7570 drv->monitor_refcount++; 7571 wpa_printf(MSG_DEBUG, "nl80211: Re-use existing monitor interface: refcount=%d", 7572 drv->monitor_refcount); 7573 return 0; 7574 } 7575 7576 if (os_strncmp(drv->first_bss->ifname, "p2p-", 4) == 0) { 7577 /* 7578 * P2P interface name is of the format p2p-%s-%d. For monitor 7579 * interface name corresponding to P2P GO, replace "p2p-" with 7580 * "mon-" to retain the same interface name length and to 7581 * indicate that it is a monitor interface. 7582 */ 7583 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss->ifname + 4); 7584 } else { 7585 /* Non-P2P interface with AP functionality. */ 7586 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss->ifname); 7587 } 7588 7589 buf[IFNAMSIZ - 1] = '\0'; 7590 7591 drv->monitor_ifidx = 7592 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL, 7593 0, NULL, NULL, 0); 7594 7595 if (drv->monitor_ifidx == -EOPNOTSUPP) { 7596 /* 7597 * This is backward compatibility for a few versions of 7598 * the kernel only that didn't advertise the right 7599 * attributes for the only driver that then supported 7600 * AP mode w/o monitor -- ath6kl. 7601 */ 7602 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support " 7603 "monitor interface type - try to run without it"); 7604 drv->device_ap_sme = 1; 7605 } 7606 7607 if (drv->monitor_ifidx < 0) 7608 return -1; 7609 7610 if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1)) 7611 goto error; 7612 7613 memset(&ll, 0, sizeof(ll)); 7614 ll.sll_family = AF_PACKET; 7615 ll.sll_ifindex = drv->monitor_ifidx; 7616 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)); 7617 if (drv->monitor_sock < 0) { 7618 wpa_printf(MSG_ERROR, "nl80211: socket[PF_PACKET,SOCK_RAW] failed: %s", 7619 strerror(errno)); 7620 goto error; 7621 } 7622 7623 if (add_monitor_filter(drv->monitor_sock)) { 7624 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor " 7625 "interface; do filtering in user space"); 7626 /* This works, but will cost in performance. */ 7627 } 7628 7629 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) { 7630 wpa_printf(MSG_ERROR, "nl80211: monitor socket bind failed: %s", 7631 strerror(errno)); 7632 goto error; 7633 } 7634 7635 optlen = sizeof(optval); 7636 optval = 20; 7637 if (setsockopt 7638 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) { 7639 wpa_printf(MSG_ERROR, "nl80211: Failed to set socket priority: %s", 7640 strerror(errno)); 7641 goto error; 7642 } 7643 7644 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read, 7645 drv, NULL)) { 7646 wpa_printf(MSG_INFO, "nl80211: Could not register monitor read socket"); 7647 goto error; 7648 } 7649 7650 drv->monitor_refcount++; 7651 return 0; 7652 error: 7653 nl80211_remove_monitor_interface(drv); 7654 return -1; 7655} 7656 7657 7658static int nl80211_setup_ap(struct i802_bss *bss) 7659{ 7660 struct wpa_driver_nl80211_data *drv = bss->drv; 7661 7662 wpa_printf(MSG_DEBUG, "nl80211: Setup AP(%s) - device_ap_sme=%d use_monitor=%d", 7663 bss->ifname, drv->device_ap_sme, drv->use_monitor); 7664 7665 /* 7666 * Disable Probe Request reporting unless we need it in this way for 7667 * devices that include the AP SME, in the other case (unless using 7668 * monitor iface) we'll get it through the nl_mgmt socket instead. 7669 */ 7670 if (!drv->device_ap_sme) 7671 wpa_driver_nl80211_probe_req_report(bss, 0); 7672 7673 if (!drv->device_ap_sme && !drv->use_monitor) 7674 if (nl80211_mgmt_subscribe_ap(bss)) 7675 return -1; 7676 7677 if (drv->device_ap_sme && !drv->use_monitor) 7678 if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) 7679 return -1; 7680 7681 if (!drv->device_ap_sme && drv->use_monitor && 7682 nl80211_create_monitor_interface(drv) && 7683 !drv->device_ap_sme) 7684 return -1; 7685 7686 if (drv->device_ap_sme && 7687 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) { 7688 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable " 7689 "Probe Request frame reporting in AP mode"); 7690 /* Try to survive without this */ 7691 } 7692 7693 return 0; 7694} 7695 7696 7697static void nl80211_teardown_ap(struct i802_bss *bss) 7698{ 7699 struct wpa_driver_nl80211_data *drv = bss->drv; 7700 7701 wpa_printf(MSG_DEBUG, "nl80211: Teardown AP(%s) - device_ap_sme=%d use_monitor=%d", 7702 bss->ifname, drv->device_ap_sme, drv->use_monitor); 7703 if (drv->device_ap_sme) { 7704 wpa_driver_nl80211_probe_req_report(bss, 0); 7705 if (!drv->use_monitor) 7706 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)"); 7707 } else if (drv->use_monitor) 7708 nl80211_remove_monitor_interface(drv); 7709 else 7710 nl80211_mgmt_unsubscribe(bss, "AP teardown"); 7711 7712 bss->beacon_set = 0; 7713} 7714 7715 7716static int nl80211_send_eapol_data(struct i802_bss *bss, 7717 const u8 *addr, const u8 *data, 7718 size_t data_len) 7719{ 7720 struct sockaddr_ll ll; 7721 int ret; 7722 7723 if (bss->drv->eapol_tx_sock < 0) { 7724 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL"); 7725 return -1; 7726 } 7727 7728 os_memset(&ll, 0, sizeof(ll)); 7729 ll.sll_family = AF_PACKET; 7730 ll.sll_ifindex = bss->ifindex; 7731 ll.sll_protocol = htons(ETH_P_PAE); 7732 ll.sll_halen = ETH_ALEN; 7733 os_memcpy(ll.sll_addr, addr, ETH_ALEN); 7734 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0, 7735 (struct sockaddr *) &ll, sizeof(ll)); 7736 if (ret < 0) 7737 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s", 7738 strerror(errno)); 7739 7740 return ret; 7741} 7742 7743 7744static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 7745 7746static int wpa_driver_nl80211_hapd_send_eapol( 7747 void *priv, const u8 *addr, const u8 *data, 7748 size_t data_len, int encrypt, const u8 *own_addr, u32 flags) 7749{ 7750 struct i802_bss *bss = priv; 7751 struct wpa_driver_nl80211_data *drv = bss->drv; 7752 struct ieee80211_hdr *hdr; 7753 size_t len; 7754 u8 *pos; 7755 int res; 7756 int qos = flags & WPA_STA_WMM; 7757 7758 if (drv->device_ap_sme || !drv->use_monitor) 7759 return nl80211_send_eapol_data(bss, addr, data, data_len); 7760 7761 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 + 7762 data_len; 7763 hdr = os_zalloc(len); 7764 if (hdr == NULL) { 7765 wpa_printf(MSG_INFO, "nl80211: Failed to allocate EAPOL buffer(len=%lu)", 7766 (unsigned long) len); 7767 return -1; 7768 } 7769 7770 hdr->frame_control = 7771 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA); 7772 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS); 7773 if (encrypt) 7774 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP); 7775 if (qos) { 7776 hdr->frame_control |= 7777 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4); 7778 } 7779 7780 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN); 7781 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 7782 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 7783 pos = (u8 *) (hdr + 1); 7784 7785 if (qos) { 7786 /* Set highest priority in QoS header */ 7787 pos[0] = 7; 7788 pos[1] = 0; 7789 pos += 2; 7790 } 7791 7792 memcpy(pos, rfc1042_header, sizeof(rfc1042_header)); 7793 pos += sizeof(rfc1042_header); 7794 WPA_PUT_BE16(pos, ETH_P_PAE); 7795 pos += 2; 7796 memcpy(pos, data, data_len); 7797 7798 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0, 7799 0, 0, 0, 0); 7800 if (res < 0) { 7801 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - " 7802 "failed: %d (%s)", 7803 (unsigned long) len, errno, strerror(errno)); 7804 } 7805 os_free(hdr); 7806 7807 return res; 7808} 7809 7810 7811static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr, 7812 int total_flags, 7813 int flags_or, int flags_and) 7814{ 7815 struct i802_bss *bss = priv; 7816 struct wpa_driver_nl80211_data *drv = bss->drv; 7817 struct nl_msg *msg; 7818 struct nlattr *flags; 7819 struct nl80211_sta_flag_update upd; 7820 7821 msg = nlmsg_alloc(); 7822 if (!msg) 7823 return -ENOMEM; 7824 7825 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 7826 7827 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 7828 if_nametoindex(bss->ifname)); 7829 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 7830 7831 /* 7832 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This 7833 * can be removed eventually. 7834 */ 7835 flags = nla_nest_start(msg, NL80211_ATTR_STA_FLAGS); 7836 if (!flags) 7837 goto nla_put_failure; 7838 if (total_flags & WPA_STA_AUTHORIZED) 7839 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_AUTHORIZED); 7840 7841 if (total_flags & WPA_STA_WMM) 7842 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_WME); 7843 7844 if (total_flags & WPA_STA_SHORT_PREAMBLE) 7845 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_SHORT_PREAMBLE); 7846 7847 if (total_flags & WPA_STA_MFP) 7848 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_MFP); 7849 7850 if (total_flags & WPA_STA_TDLS_PEER) 7851 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_TDLS_PEER); 7852 7853 nla_nest_end(msg, flags); 7854 7855 os_memset(&upd, 0, sizeof(upd)); 7856 upd.mask = sta_flags_nl80211(flags_or | ~flags_and); 7857 upd.set = sta_flags_nl80211(flags_or); 7858 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 7859 7860 return send_and_recv_msgs(drv, msg, NULL, NULL); 7861 nla_put_failure: 7862 nlmsg_free(msg); 7863 return -ENOBUFS; 7864} 7865 7866 7867static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv, 7868 struct wpa_driver_associate_params *params) 7869{ 7870 enum nl80211_iftype nlmode, old_mode; 7871 struct hostapd_freq_params freq = { 7872 .freq = params->freq, 7873 }; 7874 7875 if (params->p2p) { 7876 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P " 7877 "group (GO)"); 7878 nlmode = NL80211_IFTYPE_P2P_GO; 7879 } else 7880 nlmode = NL80211_IFTYPE_AP; 7881 7882 old_mode = drv->nlmode; 7883 if (wpa_driver_nl80211_set_mode(drv->first_bss, nlmode)) { 7884 nl80211_remove_monitor_interface(drv); 7885 return -1; 7886 } 7887 7888 if (wpa_driver_nl80211_set_freq(drv->first_bss, &freq)) { 7889 if (old_mode != nlmode) 7890 wpa_driver_nl80211_set_mode(drv->first_bss, old_mode); 7891 nl80211_remove_monitor_interface(drv); 7892 return -1; 7893 } 7894 7895 return 0; 7896} 7897 7898 7899static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv) 7900{ 7901 struct nl_msg *msg; 7902 int ret = -1; 7903 7904 msg = nlmsg_alloc(); 7905 if (!msg) 7906 return -1; 7907 7908 nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS); 7909 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7910 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7911 msg = NULL; 7912 if (ret) { 7913 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d " 7914 "(%s)", ret, strerror(-ret)); 7915 goto nla_put_failure; 7916 } 7917 7918 ret = 0; 7919 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully"); 7920 7921nla_put_failure: 7922 if (wpa_driver_nl80211_set_mode(drv->first_bss, 7923 NL80211_IFTYPE_STATION)) { 7924 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 7925 "station mode"); 7926 } 7927 7928 nlmsg_free(msg); 7929 return ret; 7930} 7931 7932 7933static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv, 7934 struct wpa_driver_associate_params *params) 7935{ 7936 struct nl_msg *msg; 7937 int ret = -1; 7938 int count = 0; 7939 7940 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex); 7941 7942 if (wpa_driver_nl80211_set_mode(drv->first_bss, 7943 NL80211_IFTYPE_ADHOC)) { 7944 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 7945 "IBSS mode"); 7946 return -1; 7947 } 7948 7949retry: 7950 msg = nlmsg_alloc(); 7951 if (!msg) 7952 return -1; 7953 7954 nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS); 7955 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7956 7957 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid)) 7958 goto nla_put_failure; 7959 7960 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 7961 params->ssid, params->ssid_len); 7962 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7963 params->ssid); 7964 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 7965 drv->ssid_len = params->ssid_len; 7966 7967 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 7968 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 7969 7970 ret = nl80211_set_conn_keys(params, msg); 7971 if (ret) 7972 goto nla_put_failure; 7973 7974 if (params->bssid && params->fixed_bssid) { 7975 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR, 7976 MAC2STR(params->bssid)); 7977 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 7978 } 7979 7980 if (params->key_mgmt_suite == KEY_MGMT_802_1X || 7981 params->key_mgmt_suite == KEY_MGMT_PSK || 7982 params->key_mgmt_suite == KEY_MGMT_802_1X_SHA256 || 7983 params->key_mgmt_suite == KEY_MGMT_PSK_SHA256) { 7984 wpa_printf(MSG_DEBUG, " * control port"); 7985 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 7986 } 7987 7988 if (params->wpa_ie) { 7989 wpa_hexdump(MSG_DEBUG, 7990 " * Extra IEs for Beacon/Probe Response frames", 7991 params->wpa_ie, params->wpa_ie_len); 7992 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 7993 params->wpa_ie); 7994 } 7995 7996 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7997 msg = NULL; 7998 if (ret) { 7999 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)", 8000 ret, strerror(-ret)); 8001 count++; 8002 if (ret == -EALREADY && count == 1) { 8003 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after " 8004 "forced leave"); 8005 nl80211_leave_ibss(drv); 8006 nlmsg_free(msg); 8007 goto retry; 8008 } 8009 8010 goto nla_put_failure; 8011 } 8012 ret = 0; 8013 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully"); 8014 8015nla_put_failure: 8016 nlmsg_free(msg); 8017 return ret; 8018} 8019 8020 8021static int wpa_driver_nl80211_try_connect( 8022 struct wpa_driver_nl80211_data *drv, 8023 struct wpa_driver_associate_params *params) 8024{ 8025 struct nl_msg *msg; 8026 enum nl80211_auth_type type; 8027 int ret = 0; 8028 int algs; 8029 8030 msg = nlmsg_alloc(); 8031 if (!msg) 8032 return -1; 8033 8034 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex); 8035 nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT); 8036 8037 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8038 if (params->bssid) { 8039 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 8040 MAC2STR(params->bssid)); 8041 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 8042 } 8043 if (params->freq) { 8044 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 8045 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 8046 drv->assoc_freq = params->freq; 8047 } else 8048 drv->assoc_freq = 0; 8049 if (params->bg_scan_period >= 0) { 8050 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 8051 params->bg_scan_period); 8052 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 8053 params->bg_scan_period); 8054 } 8055 if (params->ssid) { 8056 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 8057 params->ssid, params->ssid_len); 8058 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 8059 params->ssid); 8060 if (params->ssid_len > sizeof(drv->ssid)) 8061 goto nla_put_failure; 8062 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 8063 drv->ssid_len = params->ssid_len; 8064 } 8065 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 8066 if (params->wpa_ie) 8067 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 8068 params->wpa_ie); 8069 8070 algs = 0; 8071 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 8072 algs++; 8073 if (params->auth_alg & WPA_AUTH_ALG_SHARED) 8074 algs++; 8075 if (params->auth_alg & WPA_AUTH_ALG_LEAP) 8076 algs++; 8077 if (algs > 1) { 8078 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic " 8079 "selection"); 8080 goto skip_auth_type; 8081 } 8082 8083 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 8084 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 8085 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 8086 type = NL80211_AUTHTYPE_SHARED_KEY; 8087 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 8088 type = NL80211_AUTHTYPE_NETWORK_EAP; 8089 else if (params->auth_alg & WPA_AUTH_ALG_FT) 8090 type = NL80211_AUTHTYPE_FT; 8091 else 8092 goto nla_put_failure; 8093 8094 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 8095 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 8096 8097skip_auth_type: 8098 if (params->wpa_proto) { 8099 enum nl80211_wpa_versions ver = 0; 8100 8101 if (params->wpa_proto & WPA_PROTO_WPA) 8102 ver |= NL80211_WPA_VERSION_1; 8103 if (params->wpa_proto & WPA_PROTO_RSN) 8104 ver |= NL80211_WPA_VERSION_2; 8105 8106 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver); 8107 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 8108 } 8109 8110 if (params->pairwise_suite != CIPHER_NONE) { 8111 int cipher; 8112 8113 switch (params->pairwise_suite) { 8114 case CIPHER_SMS4: 8115 cipher = WLAN_CIPHER_SUITE_SMS4; 8116 break; 8117 case CIPHER_WEP40: 8118 cipher = WLAN_CIPHER_SUITE_WEP40; 8119 break; 8120 case CIPHER_WEP104: 8121 cipher = WLAN_CIPHER_SUITE_WEP104; 8122 break; 8123 case CIPHER_CCMP: 8124 cipher = WLAN_CIPHER_SUITE_CCMP; 8125 break; 8126 case CIPHER_GCMP: 8127 cipher = WLAN_CIPHER_SUITE_GCMP; 8128 break; 8129 case CIPHER_TKIP: 8130 default: 8131 cipher = WLAN_CIPHER_SUITE_TKIP; 8132 break; 8133 } 8134 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); 8135 } 8136 8137 if (params->group_suite != CIPHER_NONE) { 8138 int cipher; 8139 8140 switch (params->group_suite) { 8141 case CIPHER_SMS4: 8142 cipher = WLAN_CIPHER_SUITE_SMS4; 8143 break; 8144 case CIPHER_WEP40: 8145 cipher = WLAN_CIPHER_SUITE_WEP40; 8146 break; 8147 case CIPHER_WEP104: 8148 cipher = WLAN_CIPHER_SUITE_WEP104; 8149 break; 8150 case CIPHER_CCMP: 8151 cipher = WLAN_CIPHER_SUITE_CCMP; 8152 break; 8153 case CIPHER_GCMP: 8154 cipher = WLAN_CIPHER_SUITE_GCMP; 8155 break; 8156 case CIPHER_TKIP: 8157 default: 8158 cipher = WLAN_CIPHER_SUITE_TKIP; 8159 break; 8160 } 8161 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); 8162 } 8163 8164 if (params->key_mgmt_suite == KEY_MGMT_802_1X || 8165 params->key_mgmt_suite == KEY_MGMT_PSK || 8166 params->key_mgmt_suite == KEY_MGMT_FT_802_1X || 8167 params->key_mgmt_suite == KEY_MGMT_FT_PSK || 8168 params->key_mgmt_suite == KEY_MGMT_CCKM) { 8169 int mgmt = WLAN_AKM_SUITE_PSK; 8170 8171 switch (params->key_mgmt_suite) { 8172 case KEY_MGMT_CCKM: 8173 mgmt = WLAN_AKM_SUITE_CCKM; 8174 break; 8175 case KEY_MGMT_802_1X: 8176 mgmt = WLAN_AKM_SUITE_8021X; 8177 break; 8178 case KEY_MGMT_FT_802_1X: 8179 mgmt = WLAN_AKM_SUITE_FT_8021X; 8180 break; 8181 case KEY_MGMT_FT_PSK: 8182 mgmt = WLAN_AKM_SUITE_FT_PSK; 8183 break; 8184 case KEY_MGMT_PSK: 8185 default: 8186 mgmt = WLAN_AKM_SUITE_PSK; 8187 break; 8188 } 8189 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt); 8190 } 8191 8192#ifdef CONFIG_IEEE80211W 8193 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) 8194 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); 8195#endif /* CONFIG_IEEE80211W */ 8196 8197 if (params->disable_ht) 8198 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); 8199 8200 if (params->htcaps && params->htcaps_mask) { 8201 int sz = sizeof(struct ieee80211_ht_capabilities); 8202 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); 8203 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 8204 params->htcaps_mask); 8205 } 8206 8207#ifdef CONFIG_VHT_OVERRIDES 8208 if (params->disable_vht) { 8209 wpa_printf(MSG_DEBUG, " * VHT disabled"); 8210 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT); 8211 } 8212 8213 if (params->vhtcaps && params->vhtcaps_mask) { 8214 int sz = sizeof(struct ieee80211_vht_capabilities); 8215 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps); 8216 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 8217 params->vhtcaps_mask); 8218 } 8219#endif /* CONFIG_VHT_OVERRIDES */ 8220 8221 ret = nl80211_set_conn_keys(params, msg); 8222 if (ret) 8223 goto nla_put_failure; 8224 8225 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8226 msg = NULL; 8227 if (ret) { 8228 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d " 8229 "(%s)", ret, strerror(-ret)); 8230 goto nla_put_failure; 8231 } 8232 ret = 0; 8233 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully"); 8234 8235nla_put_failure: 8236 nlmsg_free(msg); 8237 return ret; 8238 8239} 8240 8241 8242static int wpa_driver_nl80211_connect( 8243 struct wpa_driver_nl80211_data *drv, 8244 struct wpa_driver_associate_params *params) 8245{ 8246 int ret = wpa_driver_nl80211_try_connect(drv, params); 8247 if (ret == -EALREADY) { 8248 /* 8249 * cfg80211 does not currently accept new connections if 8250 * we are already connected. As a workaround, force 8251 * disconnection and try again. 8252 */ 8253 wpa_printf(MSG_DEBUG, "nl80211: Explicitly " 8254 "disconnecting before reassociation " 8255 "attempt"); 8256 if (wpa_driver_nl80211_disconnect( 8257 drv, WLAN_REASON_PREV_AUTH_NOT_VALID)) 8258 return -1; 8259 ret = wpa_driver_nl80211_try_connect(drv, params); 8260 } 8261 return ret; 8262} 8263 8264 8265static int wpa_driver_nl80211_associate( 8266 void *priv, struct wpa_driver_associate_params *params) 8267{ 8268 struct i802_bss *bss = priv; 8269 struct wpa_driver_nl80211_data *drv = bss->drv; 8270 int ret = -1; 8271 struct nl_msg *msg; 8272 8273 if (params->mode == IEEE80211_MODE_AP) 8274 return wpa_driver_nl80211_ap(drv, params); 8275 8276 if (params->mode == IEEE80211_MODE_IBSS) 8277 return wpa_driver_nl80211_ibss(drv, params); 8278 8279 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) { 8280 enum nl80211_iftype nlmode = params->p2p ? 8281 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 8282 8283 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0) 8284 return -1; 8285 return wpa_driver_nl80211_connect(drv, params); 8286 } 8287 8288 nl80211_mark_disconnected(drv); 8289 8290 msg = nlmsg_alloc(); 8291 if (!msg) 8292 return -1; 8293 8294 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)", 8295 drv->ifindex); 8296 nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE); 8297 8298 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8299 if (params->bssid) { 8300 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 8301 MAC2STR(params->bssid)); 8302 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 8303 } 8304 if (params->freq) { 8305 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 8306 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 8307 drv->assoc_freq = params->freq; 8308 } else 8309 drv->assoc_freq = 0; 8310 if (params->bg_scan_period >= 0) { 8311 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 8312 params->bg_scan_period); 8313 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 8314 params->bg_scan_period); 8315 } 8316 if (params->ssid) { 8317 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 8318 params->ssid, params->ssid_len); 8319 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 8320 params->ssid); 8321 if (params->ssid_len > sizeof(drv->ssid)) 8322 goto nla_put_failure; 8323 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 8324 drv->ssid_len = params->ssid_len; 8325 } 8326 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 8327 if (params->wpa_ie) 8328 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 8329 params->wpa_ie); 8330 8331 if (params->pairwise_suite != CIPHER_NONE) { 8332 int cipher; 8333 8334 switch (params->pairwise_suite) { 8335 case CIPHER_WEP40: 8336 cipher = WLAN_CIPHER_SUITE_WEP40; 8337 break; 8338 case CIPHER_WEP104: 8339 cipher = WLAN_CIPHER_SUITE_WEP104; 8340 break; 8341 case CIPHER_CCMP: 8342 cipher = WLAN_CIPHER_SUITE_CCMP; 8343 break; 8344 case CIPHER_GCMP: 8345 cipher = WLAN_CIPHER_SUITE_GCMP; 8346 break; 8347 case CIPHER_TKIP: 8348 default: 8349 cipher = WLAN_CIPHER_SUITE_TKIP; 8350 break; 8351 } 8352 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher); 8353 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); 8354 } 8355 8356 if (params->group_suite != CIPHER_NONE) { 8357 int cipher; 8358 8359 switch (params->group_suite) { 8360 case CIPHER_WEP40: 8361 cipher = WLAN_CIPHER_SUITE_WEP40; 8362 break; 8363 case CIPHER_WEP104: 8364 cipher = WLAN_CIPHER_SUITE_WEP104; 8365 break; 8366 case CIPHER_CCMP: 8367 cipher = WLAN_CIPHER_SUITE_CCMP; 8368 break; 8369 case CIPHER_GCMP: 8370 cipher = WLAN_CIPHER_SUITE_GCMP; 8371 break; 8372 case CIPHER_TKIP: 8373 default: 8374 cipher = WLAN_CIPHER_SUITE_TKIP; 8375 break; 8376 } 8377 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher); 8378 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); 8379 } 8380 8381#ifdef CONFIG_IEEE80211W 8382 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) 8383 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); 8384#endif /* CONFIG_IEEE80211W */ 8385 8386 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 8387 8388 if (params->prev_bssid) { 8389 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR, 8390 MAC2STR(params->prev_bssid)); 8391 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN, 8392 params->prev_bssid); 8393 } 8394 8395 if (params->disable_ht) 8396 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); 8397 8398 if (params->htcaps && params->htcaps_mask) { 8399 int sz = sizeof(struct ieee80211_ht_capabilities); 8400 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); 8401 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 8402 params->htcaps_mask); 8403 } 8404 8405#ifdef CONFIG_VHT_OVERRIDES 8406 if (params->disable_vht) { 8407 wpa_printf(MSG_DEBUG, " * VHT disabled"); 8408 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT); 8409 } 8410 8411 if (params->vhtcaps && params->vhtcaps_mask) { 8412 int sz = sizeof(struct ieee80211_vht_capabilities); 8413 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps); 8414 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 8415 params->vhtcaps_mask); 8416 } 8417#endif /* CONFIG_VHT_OVERRIDES */ 8418 8419 if (params->p2p) 8420 wpa_printf(MSG_DEBUG, " * P2P group"); 8421 8422 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8423 msg = NULL; 8424 if (ret) { 8425 wpa_dbg(drv->ctx, MSG_DEBUG, 8426 "nl80211: MLME command failed (assoc): ret=%d (%s)", 8427 ret, strerror(-ret)); 8428 nl80211_dump_scan(drv); 8429 goto nla_put_failure; 8430 } 8431 ret = 0; 8432 wpa_printf(MSG_DEBUG, "nl80211: Association request send " 8433 "successfully"); 8434 8435nla_put_failure: 8436 nlmsg_free(msg); 8437 return ret; 8438} 8439 8440 8441static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv, 8442 int ifindex, enum nl80211_iftype mode) 8443{ 8444 struct nl_msg *msg; 8445 int ret = -ENOBUFS; 8446 8447 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)", 8448 ifindex, mode, nl80211_iftype_str(mode)); 8449 8450 msg = nlmsg_alloc(); 8451 if (!msg) 8452 return -ENOMEM; 8453 8454 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE); 8455 if (nl80211_set_iface_id(msg, drv->first_bss) < 0) 8456 goto nla_put_failure; 8457 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode); 8458 8459 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8460 msg = NULL; 8461 if (!ret) 8462 return 0; 8463nla_put_failure: 8464 nlmsg_free(msg); 8465 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:" 8466 " %d (%s)", ifindex, mode, ret, strerror(-ret)); 8467 return ret; 8468} 8469 8470 8471static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 8472 enum nl80211_iftype nlmode) 8473{ 8474 struct wpa_driver_nl80211_data *drv = bss->drv; 8475 int ret = -1; 8476 int i; 8477 int was_ap = is_ap_interface(drv->nlmode); 8478 int res; 8479 8480 res = nl80211_set_mode(drv, drv->ifindex, nlmode); 8481 if (res && nlmode == nl80211_get_ifmode(bss)) 8482 res = 0; 8483 8484 if (res == 0) { 8485 drv->nlmode = nlmode; 8486 ret = 0; 8487 goto done; 8488 } 8489 8490 if (res == -ENODEV) 8491 return -1; 8492 8493 if (nlmode == drv->nlmode) { 8494 wpa_printf(MSG_DEBUG, "nl80211: Interface already in " 8495 "requested mode - ignore error"); 8496 ret = 0; 8497 goto done; /* Already in the requested mode */ 8498 } 8499 8500 /* mac80211 doesn't allow mode changes while the device is up, so 8501 * take the device down, try to set the mode again, and bring the 8502 * device back up. 8503 */ 8504 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting " 8505 "interface down"); 8506 for (i = 0; i < 10; i++) { 8507 res = i802_set_iface_flags(bss, 0); 8508 if (res == -EACCES || res == -ENODEV) 8509 break; 8510 if (res == 0) { 8511 /* Try to set the mode again while the interface is 8512 * down */ 8513 ret = nl80211_set_mode(drv, drv->ifindex, nlmode); 8514 if (ret == -EACCES) 8515 break; 8516 res = i802_set_iface_flags(bss, 1); 8517 if (res && !ret) 8518 ret = -1; 8519 else if (ret != -EBUSY) 8520 break; 8521 } else 8522 wpa_printf(MSG_DEBUG, "nl80211: Failed to set " 8523 "interface down"); 8524 os_sleep(0, 100000); 8525 } 8526 8527 if (!ret) { 8528 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while " 8529 "interface is down"); 8530 drv->nlmode = nlmode; 8531 drv->ignore_if_down_event = 1; 8532 } 8533 8534done: 8535 if (ret) { 8536 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d " 8537 "from %d failed", nlmode, drv->nlmode); 8538 return ret; 8539 } 8540 8541 if (is_p2p_net_interface(nlmode)) 8542 nl80211_disable_11b_rates(drv, drv->ifindex, 1); 8543 else if (drv->disabled_11b_rates) 8544 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 8545 8546 if (is_ap_interface(nlmode)) { 8547 nl80211_mgmt_unsubscribe(bss, "start AP"); 8548 /* Setup additional AP mode functionality if needed */ 8549 if (nl80211_setup_ap(bss)) 8550 return -1; 8551 } else if (was_ap) { 8552 /* Remove additional AP mode functionality */ 8553 nl80211_teardown_ap(bss); 8554 } else { 8555 nl80211_mgmt_unsubscribe(bss, "mode change"); 8556 } 8557 8558 if (!bss->in_deinit && !is_ap_interface(nlmode) && 8559 nl80211_mgmt_subscribe_non_ap(bss) < 0) 8560 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action " 8561 "frame processing - ignore for now"); 8562 8563 return 0; 8564} 8565 8566 8567static int wpa_driver_nl80211_get_capa(void *priv, 8568 struct wpa_driver_capa *capa) 8569{ 8570 struct i802_bss *bss = priv; 8571 struct wpa_driver_nl80211_data *drv = bss->drv; 8572 if (!drv->has_capability) 8573 return -1; 8574 os_memcpy(capa, &drv->capa, sizeof(*capa)); 8575 if (drv->extended_capa && drv->extended_capa_mask) { 8576 capa->extended_capa = drv->extended_capa; 8577 capa->extended_capa_mask = drv->extended_capa_mask; 8578 capa->extended_capa_len = drv->extended_capa_len; 8579 } 8580 8581 if ((capa->flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) && 8582 !drv->allow_p2p_device) { 8583 wpa_printf(MSG_DEBUG, "nl80211: Do not indicate P2P_DEVICE support (p2p_device=1 driver param not specified)"); 8584 capa->flags &= ~WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 8585 } 8586 8587 return 0; 8588} 8589 8590 8591static int wpa_driver_nl80211_set_operstate(void *priv, int state) 8592{ 8593 struct i802_bss *bss = priv; 8594 struct wpa_driver_nl80211_data *drv = bss->drv; 8595 8596 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)", 8597 __func__, drv->operstate, state, state ? "UP" : "DORMANT"); 8598 drv->operstate = state; 8599 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1, 8600 state ? IF_OPER_UP : IF_OPER_DORMANT); 8601} 8602 8603 8604static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized) 8605{ 8606 struct i802_bss *bss = priv; 8607 struct wpa_driver_nl80211_data *drv = bss->drv; 8608 struct nl_msg *msg; 8609 struct nl80211_sta_flag_update upd; 8610 8611 wpa_printf(MSG_DEBUG, "nl80211: Set supplicant port %sauthorized for " 8612 MACSTR, authorized ? "" : "un", MAC2STR(drv->bssid)); 8613 8614 msg = nlmsg_alloc(); 8615 if (!msg) 8616 return -ENOMEM; 8617 8618 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8619 8620 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8621 if_nametoindex(bss->ifname)); 8622 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 8623 8624 os_memset(&upd, 0, sizeof(upd)); 8625 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED); 8626 if (authorized) 8627 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED); 8628 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 8629 8630 return send_and_recv_msgs(drv, msg, NULL, NULL); 8631 nla_put_failure: 8632 nlmsg_free(msg); 8633 return -ENOBUFS; 8634} 8635 8636 8637/* Set kernel driver on given frequency (MHz) */ 8638static int i802_set_freq(void *priv, struct hostapd_freq_params *freq) 8639{ 8640 struct i802_bss *bss = priv; 8641 return wpa_driver_nl80211_set_freq(bss, freq); 8642} 8643 8644 8645static inline int min_int(int a, int b) 8646{ 8647 if (a < b) 8648 return a; 8649 return b; 8650} 8651 8652 8653static int get_key_handler(struct nl_msg *msg, void *arg) 8654{ 8655 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 8656 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 8657 8658 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 8659 genlmsg_attrlen(gnlh, 0), NULL); 8660 8661 /* 8662 * TODO: validate the key index and mac address! 8663 * Otherwise, there's a race condition as soon as 8664 * the kernel starts sending key notifications. 8665 */ 8666 8667 if (tb[NL80211_ATTR_KEY_SEQ]) 8668 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]), 8669 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6)); 8670 return NL_SKIP; 8671} 8672 8673 8674static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr, 8675 int idx, u8 *seq) 8676{ 8677 struct i802_bss *bss = priv; 8678 struct wpa_driver_nl80211_data *drv = bss->drv; 8679 struct nl_msg *msg; 8680 8681 msg = nlmsg_alloc(); 8682 if (!msg) 8683 return -ENOMEM; 8684 8685 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY); 8686 8687 if (addr) 8688 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8689 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx); 8690 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface)); 8691 8692 memset(seq, 0, 6); 8693 8694 return send_and_recv_msgs(drv, msg, get_key_handler, seq); 8695 nla_put_failure: 8696 nlmsg_free(msg); 8697 return -ENOBUFS; 8698} 8699 8700 8701static int i802_set_rts(void *priv, int rts) 8702{ 8703 struct i802_bss *bss = priv; 8704 struct wpa_driver_nl80211_data *drv = bss->drv; 8705 struct nl_msg *msg; 8706 int ret = -ENOBUFS; 8707 u32 val; 8708 8709 msg = nlmsg_alloc(); 8710 if (!msg) 8711 return -ENOMEM; 8712 8713 if (rts >= 2347) 8714 val = (u32) -1; 8715 else 8716 val = rts; 8717 8718 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8719 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8720 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val); 8721 8722 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8723 msg = NULL; 8724 if (!ret) 8725 return 0; 8726nla_put_failure: 8727 nlmsg_free(msg); 8728 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: " 8729 "%d (%s)", rts, ret, strerror(-ret)); 8730 return ret; 8731} 8732 8733 8734static int i802_set_frag(void *priv, int frag) 8735{ 8736 struct i802_bss *bss = priv; 8737 struct wpa_driver_nl80211_data *drv = bss->drv; 8738 struct nl_msg *msg; 8739 int ret = -ENOBUFS; 8740 u32 val; 8741 8742 msg = nlmsg_alloc(); 8743 if (!msg) 8744 return -ENOMEM; 8745 8746 if (frag >= 2346) 8747 val = (u32) -1; 8748 else 8749 val = frag; 8750 8751 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8752 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8753 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val); 8754 8755 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8756 msg = NULL; 8757 if (!ret) 8758 return 0; 8759nla_put_failure: 8760 nlmsg_free(msg); 8761 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold " 8762 "%d: %d (%s)", frag, ret, strerror(-ret)); 8763 return ret; 8764} 8765 8766 8767static int i802_flush(void *priv) 8768{ 8769 struct i802_bss *bss = priv; 8770 struct wpa_driver_nl80211_data *drv = bss->drv; 8771 struct nl_msg *msg; 8772 int res; 8773 8774 msg = nlmsg_alloc(); 8775 if (!msg) 8776 return -1; 8777 8778 wpa_printf(MSG_DEBUG, "nl80211: flush -> DEL_STATION %s (all)", 8779 bss->ifname); 8780 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 8781 8782 /* 8783 * XXX: FIX! this needs to flush all VLANs too 8784 */ 8785 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8786 if_nametoindex(bss->ifname)); 8787 8788 res = send_and_recv_msgs(drv, msg, NULL, NULL); 8789 if (res) { 8790 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d " 8791 "(%s)", res, strerror(-res)); 8792 } 8793 return res; 8794 nla_put_failure: 8795 nlmsg_free(msg); 8796 return -ENOBUFS; 8797} 8798 8799 8800static int get_sta_handler(struct nl_msg *msg, void *arg) 8801{ 8802 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 8803 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 8804 struct hostap_sta_driver_data *data = arg; 8805 struct nlattr *stats[NL80211_STA_INFO_MAX + 1]; 8806 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = { 8807 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 }, 8808 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 }, 8809 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 }, 8810 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 }, 8811 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 }, 8812 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 }, 8813 }; 8814 8815 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 8816 genlmsg_attrlen(gnlh, 0), NULL); 8817 8818 /* 8819 * TODO: validate the interface and mac address! 8820 * Otherwise, there's a race condition as soon as 8821 * the kernel starts sending station notifications. 8822 */ 8823 8824 if (!tb[NL80211_ATTR_STA_INFO]) { 8825 wpa_printf(MSG_DEBUG, "sta stats missing!"); 8826 return NL_SKIP; 8827 } 8828 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX, 8829 tb[NL80211_ATTR_STA_INFO], 8830 stats_policy)) { 8831 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!"); 8832 return NL_SKIP; 8833 } 8834 8835 if (stats[NL80211_STA_INFO_INACTIVE_TIME]) 8836 data->inactive_msec = 8837 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]); 8838 if (stats[NL80211_STA_INFO_RX_BYTES]) 8839 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]); 8840 if (stats[NL80211_STA_INFO_TX_BYTES]) 8841 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]); 8842 if (stats[NL80211_STA_INFO_RX_PACKETS]) 8843 data->rx_packets = 8844 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]); 8845 if (stats[NL80211_STA_INFO_TX_PACKETS]) 8846 data->tx_packets = 8847 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]); 8848 if (stats[NL80211_STA_INFO_TX_FAILED]) 8849 data->tx_retry_failed = 8850 nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]); 8851 8852 return NL_SKIP; 8853} 8854 8855static int i802_read_sta_data(struct i802_bss *bss, 8856 struct hostap_sta_driver_data *data, 8857 const u8 *addr) 8858{ 8859 struct wpa_driver_nl80211_data *drv = bss->drv; 8860 struct nl_msg *msg; 8861 8862 os_memset(data, 0, sizeof(*data)); 8863 msg = nlmsg_alloc(); 8864 if (!msg) 8865 return -ENOMEM; 8866 8867 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 8868 8869 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8870 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 8871 8872 return send_and_recv_msgs(drv, msg, get_sta_handler, data); 8873 nla_put_failure: 8874 nlmsg_free(msg); 8875 return -ENOBUFS; 8876} 8877 8878 8879static int i802_set_tx_queue_params(void *priv, int queue, int aifs, 8880 int cw_min, int cw_max, int burst_time) 8881{ 8882 struct i802_bss *bss = priv; 8883 struct wpa_driver_nl80211_data *drv = bss->drv; 8884 struct nl_msg *msg; 8885 struct nlattr *txq, *params; 8886 8887 msg = nlmsg_alloc(); 8888 if (!msg) 8889 return -1; 8890 8891 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8892 8893 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 8894 8895 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS); 8896 if (!txq) 8897 goto nla_put_failure; 8898 8899 /* We are only sending parameters for a single TXQ at a time */ 8900 params = nla_nest_start(msg, 1); 8901 if (!params) 8902 goto nla_put_failure; 8903 8904 switch (queue) { 8905 case 0: 8906 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO); 8907 break; 8908 case 1: 8909 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI); 8910 break; 8911 case 2: 8912 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE); 8913 break; 8914 case 3: 8915 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK); 8916 break; 8917 } 8918 /* Burst time is configured in units of 0.1 msec and TXOP parameter in 8919 * 32 usec, so need to convert the value here. */ 8920 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32); 8921 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min); 8922 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max); 8923 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs); 8924 8925 nla_nest_end(msg, params); 8926 8927 nla_nest_end(msg, txq); 8928 8929 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 8930 return 0; 8931 msg = NULL; 8932 nla_put_failure: 8933 nlmsg_free(msg); 8934 return -1; 8935} 8936 8937 8938static int i802_set_sta_vlan(struct i802_bss *bss, const u8 *addr, 8939 const char *ifname, int vlan_id) 8940{ 8941 struct wpa_driver_nl80211_data *drv = bss->drv; 8942 struct nl_msg *msg; 8943 int ret = -ENOBUFS; 8944 8945 msg = nlmsg_alloc(); 8946 if (!msg) 8947 return -ENOMEM; 8948 8949 wpa_printf(MSG_DEBUG, "nl80211: %s[%d]: set_sta_vlan(" MACSTR 8950 ", ifname=%s[%d], vlan_id=%d)", 8951 bss->ifname, if_nametoindex(bss->ifname), 8952 MAC2STR(addr), ifname, if_nametoindex(ifname), vlan_id); 8953 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8954 8955 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8956 if_nametoindex(bss->ifname)); 8957 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8958 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN, 8959 if_nametoindex(ifname)); 8960 8961 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8962 msg = NULL; 8963 if (ret < 0) { 8964 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr=" 8965 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)", 8966 MAC2STR(addr), ifname, vlan_id, ret, 8967 strerror(-ret)); 8968 } 8969 nla_put_failure: 8970 nlmsg_free(msg); 8971 return ret; 8972} 8973 8974 8975static int i802_get_inact_sec(void *priv, const u8 *addr) 8976{ 8977 struct hostap_sta_driver_data data; 8978 int ret; 8979 8980 data.inactive_msec = (unsigned long) -1; 8981 ret = i802_read_sta_data(priv, &data, addr); 8982 if (ret || data.inactive_msec == (unsigned long) -1) 8983 return -1; 8984 return data.inactive_msec / 1000; 8985} 8986 8987 8988static int i802_sta_clear_stats(void *priv, const u8 *addr) 8989{ 8990#if 0 8991 /* TODO */ 8992#endif 8993 return 0; 8994} 8995 8996 8997static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, 8998 int reason) 8999{ 9000 struct i802_bss *bss = priv; 9001 struct wpa_driver_nl80211_data *drv = bss->drv; 9002 struct ieee80211_mgmt mgmt; 9003 9004 if (drv->device_ap_sme) 9005 return wpa_driver_nl80211_sta_remove(bss, addr); 9006 9007 memset(&mgmt, 0, sizeof(mgmt)); 9008 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 9009 WLAN_FC_STYPE_DEAUTH); 9010 memcpy(mgmt.da, addr, ETH_ALEN); 9011 memcpy(mgmt.sa, own_addr, ETH_ALEN); 9012 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 9013 mgmt.u.deauth.reason_code = host_to_le16(reason); 9014 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 9015 IEEE80211_HDRLEN + 9016 sizeof(mgmt.u.deauth), 0, 0, 0, 0, 9017 0); 9018} 9019 9020 9021static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr, 9022 int reason) 9023{ 9024 struct i802_bss *bss = priv; 9025 struct wpa_driver_nl80211_data *drv = bss->drv; 9026 struct ieee80211_mgmt mgmt; 9027 9028 if (drv->device_ap_sme) 9029 return wpa_driver_nl80211_sta_remove(bss, addr); 9030 9031 memset(&mgmt, 0, sizeof(mgmt)); 9032 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 9033 WLAN_FC_STYPE_DISASSOC); 9034 memcpy(mgmt.da, addr, ETH_ALEN); 9035 memcpy(mgmt.sa, own_addr, ETH_ALEN); 9036 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 9037 mgmt.u.disassoc.reason_code = host_to_le16(reason); 9038 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 9039 IEEE80211_HDRLEN + 9040 sizeof(mgmt.u.disassoc), 0, 0, 0, 0, 9041 0); 9042} 9043 9044 9045static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 9046{ 9047 int i; 9048 int *old; 9049 9050 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d", 9051 ifidx); 9052 for (i = 0; i < drv->num_if_indices; i++) { 9053 if (drv->if_indices[i] == 0) { 9054 drv->if_indices[i] = ifidx; 9055 return; 9056 } 9057 } 9058 9059 if (drv->if_indices != drv->default_if_indices) 9060 old = drv->if_indices; 9061 else 9062 old = NULL; 9063 9064 drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1, 9065 sizeof(int)); 9066 if (!drv->if_indices) { 9067 if (!old) 9068 drv->if_indices = drv->default_if_indices; 9069 else 9070 drv->if_indices = old; 9071 wpa_printf(MSG_ERROR, "Failed to reallocate memory for " 9072 "interfaces"); 9073 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx); 9074 return; 9075 } else if (!old) 9076 os_memcpy(drv->if_indices, drv->default_if_indices, 9077 sizeof(drv->default_if_indices)); 9078 drv->if_indices[drv->num_if_indices] = ifidx; 9079 drv->num_if_indices++; 9080} 9081 9082 9083static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 9084{ 9085 int i; 9086 9087 for (i = 0; i < drv->num_if_indices; i++) { 9088 if (drv->if_indices[i] == ifidx) { 9089 drv->if_indices[i] = 0; 9090 break; 9091 } 9092 } 9093} 9094 9095 9096static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 9097{ 9098 int i; 9099 9100 for (i = 0; i < drv->num_if_indices; i++) 9101 if (drv->if_indices[i] == ifidx) 9102 return 1; 9103 9104 return 0; 9105} 9106 9107 9108static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val, 9109 const char *bridge_ifname, char *ifname_wds) 9110{ 9111 struct i802_bss *bss = priv; 9112 struct wpa_driver_nl80211_data *drv = bss->drv; 9113 char name[IFNAMSIZ + 1]; 9114 9115 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid); 9116 if (ifname_wds) 9117 os_strlcpy(ifname_wds, name, IFNAMSIZ + 1); 9118 9119 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR 9120 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name); 9121 if (val) { 9122 if (!if_nametoindex(name)) { 9123 if (nl80211_create_iface(drv, name, 9124 NL80211_IFTYPE_AP_VLAN, 9125 bss->addr, 1, NULL, NULL, 0) < 9126 0) 9127 return -1; 9128 if (bridge_ifname && 9129 linux_br_add_if(drv->global->ioctl_sock, 9130 bridge_ifname, name) < 0) 9131 return -1; 9132 } 9133 if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) { 9134 wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA " 9135 "interface %s up", name); 9136 } 9137 return i802_set_sta_vlan(priv, addr, name, 0); 9138 } else { 9139 if (bridge_ifname) 9140 linux_br_del_if(drv->global->ioctl_sock, bridge_ifname, 9141 name); 9142 9143 i802_set_sta_vlan(priv, addr, bss->ifname, 0); 9144 return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN, 9145 name); 9146 } 9147} 9148 9149 9150static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx) 9151{ 9152 struct wpa_driver_nl80211_data *drv = eloop_ctx; 9153 struct sockaddr_ll lladdr; 9154 unsigned char buf[3000]; 9155 int len; 9156 socklen_t fromlen = sizeof(lladdr); 9157 9158 len = recvfrom(sock, buf, sizeof(buf), 0, 9159 (struct sockaddr *)&lladdr, &fromlen); 9160 if (len < 0) { 9161 wpa_printf(MSG_ERROR, "nl80211: EAPOL recv failed: %s", 9162 strerror(errno)); 9163 return; 9164 } 9165 9166 if (have_ifidx(drv, lladdr.sll_ifindex)) 9167 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len); 9168} 9169 9170 9171static int i802_check_bridge(struct wpa_driver_nl80211_data *drv, 9172 struct i802_bss *bss, 9173 const char *brname, const char *ifname) 9174{ 9175 int ifindex; 9176 char in_br[IFNAMSIZ]; 9177 9178 os_strlcpy(bss->brname, brname, IFNAMSIZ); 9179 ifindex = if_nametoindex(brname); 9180 if (ifindex == 0) { 9181 /* 9182 * Bridge was configured, but the bridge device does 9183 * not exist. Try to add it now. 9184 */ 9185 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) { 9186 wpa_printf(MSG_ERROR, "nl80211: Failed to add the " 9187 "bridge interface %s: %s", 9188 brname, strerror(errno)); 9189 return -1; 9190 } 9191 bss->added_bridge = 1; 9192 add_ifidx(drv, if_nametoindex(brname)); 9193 } 9194 9195 if (linux_br_get(in_br, ifname) == 0) { 9196 if (os_strcmp(in_br, brname) == 0) 9197 return 0; /* already in the bridge */ 9198 9199 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from " 9200 "bridge %s", ifname, in_br); 9201 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) < 9202 0) { 9203 wpa_printf(MSG_ERROR, "nl80211: Failed to " 9204 "remove interface %s from bridge " 9205 "%s: %s", 9206 ifname, brname, strerror(errno)); 9207 return -1; 9208 } 9209 } 9210 9211 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s", 9212 ifname, brname); 9213 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) { 9214 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s " 9215 "into bridge %s: %s", 9216 ifname, brname, strerror(errno)); 9217 return -1; 9218 } 9219 bss->added_if_into_bridge = 1; 9220 9221 return 0; 9222} 9223 9224 9225static void *i802_init(struct hostapd_data *hapd, 9226 struct wpa_init_params *params) 9227{ 9228 struct wpa_driver_nl80211_data *drv; 9229 struct i802_bss *bss; 9230 size_t i; 9231 char brname[IFNAMSIZ]; 9232 int ifindex, br_ifindex; 9233 int br_added = 0; 9234 9235 bss = wpa_driver_nl80211_drv_init(hapd, params->ifname, 9236 params->global_priv, 1, 9237 params->bssid); 9238 if (bss == NULL) 9239 return NULL; 9240 9241 drv = bss->drv; 9242 9243 if (linux_br_get(brname, params->ifname) == 0) { 9244 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s", 9245 params->ifname, brname); 9246 br_ifindex = if_nametoindex(brname); 9247 } else { 9248 brname[0] = '\0'; 9249 br_ifindex = 0; 9250 } 9251 9252 for (i = 0; i < params->num_bridge; i++) { 9253 if (params->bridge[i]) { 9254 ifindex = if_nametoindex(params->bridge[i]); 9255 if (ifindex) 9256 add_ifidx(drv, ifindex); 9257 if (ifindex == br_ifindex) 9258 br_added = 1; 9259 } 9260 } 9261 if (!br_added && br_ifindex && 9262 (params->num_bridge == 0 || !params->bridge[0])) 9263 add_ifidx(drv, br_ifindex); 9264 9265 /* start listening for EAPOL on the default AP interface */ 9266 add_ifidx(drv, drv->ifindex); 9267 9268 if (params->num_bridge && params->bridge[0] && 9269 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0) 9270 goto failed; 9271 9272 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE)); 9273 if (drv->eapol_sock < 0) { 9274 wpa_printf(MSG_ERROR, "nl80211: socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE) failed: %s", 9275 strerror(errno)); 9276 goto failed; 9277 } 9278 9279 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL)) 9280 { 9281 wpa_printf(MSG_INFO, "nl80211: Could not register read socket for eapol"); 9282 goto failed; 9283 } 9284 9285 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 9286 params->own_addr)) 9287 goto failed; 9288 9289 memcpy(bss->addr, params->own_addr, ETH_ALEN); 9290 9291 return bss; 9292 9293failed: 9294 wpa_driver_nl80211_deinit(bss); 9295 return NULL; 9296} 9297 9298 9299static void i802_deinit(void *priv) 9300{ 9301 struct i802_bss *bss = priv; 9302 wpa_driver_nl80211_deinit(bss); 9303} 9304 9305 9306static enum nl80211_iftype wpa_driver_nl80211_if_type( 9307 enum wpa_driver_if_type type) 9308{ 9309 switch (type) { 9310 case WPA_IF_STATION: 9311 return NL80211_IFTYPE_STATION; 9312 case WPA_IF_P2P_CLIENT: 9313 case WPA_IF_P2P_GROUP: 9314 return NL80211_IFTYPE_P2P_CLIENT; 9315 case WPA_IF_AP_VLAN: 9316 return NL80211_IFTYPE_AP_VLAN; 9317 case WPA_IF_AP_BSS: 9318 return NL80211_IFTYPE_AP; 9319 case WPA_IF_P2P_GO: 9320 return NL80211_IFTYPE_P2P_GO; 9321 case WPA_IF_P2P_DEVICE: 9322 return NL80211_IFTYPE_P2P_DEVICE; 9323 } 9324 return -1; 9325} 9326 9327 9328#ifdef CONFIG_P2P 9329 9330static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr) 9331{ 9332 struct wpa_driver_nl80211_data *drv; 9333 dl_list_for_each(drv, &global->interfaces, 9334 struct wpa_driver_nl80211_data, list) { 9335 if (os_memcmp(addr, drv->first_bss->addr, ETH_ALEN) == 0) 9336 return 1; 9337 } 9338 return 0; 9339} 9340 9341 9342static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv, 9343 u8 *new_addr) 9344{ 9345 unsigned int idx; 9346 9347 if (!drv->global) 9348 return -1; 9349 9350 os_memcpy(new_addr, drv->first_bss->addr, ETH_ALEN); 9351 for (idx = 0; idx < 64; idx++) { 9352 new_addr[0] = drv->first_bss->addr[0] | 0x02; 9353 new_addr[0] ^= idx << 2; 9354 if (!nl80211_addr_in_use(drv->global, new_addr)) 9355 break; 9356 } 9357 if (idx == 64) 9358 return -1; 9359 9360 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address " 9361 MACSTR, MAC2STR(new_addr)); 9362 9363 return 0; 9364} 9365 9366#endif /* CONFIG_P2P */ 9367 9368 9369struct wdev_info { 9370 u64 wdev_id; 9371 int wdev_id_set; 9372 u8 macaddr[ETH_ALEN]; 9373}; 9374 9375static int nl80211_wdev_handler(struct nl_msg *msg, void *arg) 9376{ 9377 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9378 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9379 struct wdev_info *wi = arg; 9380 9381 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9382 genlmsg_attrlen(gnlh, 0), NULL); 9383 if (tb[NL80211_ATTR_WDEV]) { 9384 wi->wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 9385 wi->wdev_id_set = 1; 9386 } 9387 9388 if (tb[NL80211_ATTR_MAC]) 9389 os_memcpy(wi->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 9390 ETH_ALEN); 9391 9392 return NL_SKIP; 9393} 9394 9395 9396static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type, 9397 const char *ifname, const u8 *addr, 9398 void *bss_ctx, void **drv_priv, 9399 char *force_ifname, u8 *if_addr, 9400 const char *bridge, int use_existing) 9401{ 9402 enum nl80211_iftype nlmode; 9403 struct i802_bss *bss = priv; 9404 struct wpa_driver_nl80211_data *drv = bss->drv; 9405 int ifidx; 9406 int added = 1; 9407 9408 if (addr) 9409 os_memcpy(if_addr, addr, ETH_ALEN); 9410 nlmode = wpa_driver_nl80211_if_type(type); 9411 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { 9412 struct wdev_info p2pdev_info; 9413 9414 os_memset(&p2pdev_info, 0, sizeof(p2pdev_info)); 9415 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 9416 0, nl80211_wdev_handler, 9417 &p2pdev_info, use_existing); 9418 if (!p2pdev_info.wdev_id_set || ifidx != 0) { 9419 wpa_printf(MSG_ERROR, "nl80211: Failed to create a P2P Device interface %s", 9420 ifname); 9421 return -1; 9422 } 9423 9424 drv->global->if_add_wdevid = p2pdev_info.wdev_id; 9425 drv->global->if_add_wdevid_set = p2pdev_info.wdev_id_set; 9426 if (!is_zero_ether_addr(p2pdev_info.macaddr)) 9427 os_memcpy(if_addr, p2pdev_info.macaddr, ETH_ALEN); 9428 wpa_printf(MSG_DEBUG, "nl80211: New P2P Device interface %s (0x%llx) created", 9429 ifname, 9430 (long long unsigned int) p2pdev_info.wdev_id); 9431 } else { 9432 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 9433 0, NULL, NULL, use_existing); 9434 if (use_existing && ifidx == -ENFILE) { 9435 added = 0; 9436 ifidx = if_nametoindex(ifname); 9437 } else if (ifidx < 0) { 9438 return -1; 9439 } 9440 } 9441 9442 if (!addr) { 9443 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 9444 os_memcpy(if_addr, bss->addr, ETH_ALEN); 9445 else if (linux_get_ifhwaddr(drv->global->ioctl_sock, 9446 bss->ifname, if_addr) < 0) { 9447 if (added) 9448 nl80211_remove_iface(drv, ifidx); 9449 return -1; 9450 } 9451 } 9452 9453#ifdef CONFIG_P2P 9454 if (!addr && 9455 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP || 9456 type == WPA_IF_P2P_GO)) { 9457 /* Enforce unique P2P Interface Address */ 9458 u8 new_addr[ETH_ALEN]; 9459 9460 if (linux_get_ifhwaddr(drv->global->ioctl_sock, ifname, 9461 new_addr) < 0) { 9462 nl80211_remove_iface(drv, ifidx); 9463 return -1; 9464 } 9465 if (nl80211_addr_in_use(drv->global, new_addr)) { 9466 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address " 9467 "for P2P group interface"); 9468 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) { 9469 nl80211_remove_iface(drv, ifidx); 9470 return -1; 9471 } 9472 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 9473 new_addr) < 0) { 9474 nl80211_remove_iface(drv, ifidx); 9475 return -1; 9476 } 9477 } 9478 os_memcpy(if_addr, new_addr, ETH_ALEN); 9479 } 9480#endif /* CONFIG_P2P */ 9481 9482 if (type == WPA_IF_AP_BSS) { 9483 struct i802_bss *new_bss = os_zalloc(sizeof(*new_bss)); 9484 if (new_bss == NULL) { 9485 if (added) 9486 nl80211_remove_iface(drv, ifidx); 9487 return -1; 9488 } 9489 9490 if (bridge && 9491 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) { 9492 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new " 9493 "interface %s to a bridge %s", 9494 ifname, bridge); 9495 if (added) 9496 nl80211_remove_iface(drv, ifidx); 9497 os_free(new_bss); 9498 return -1; 9499 } 9500 9501 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1)) 9502 { 9503 nl80211_remove_iface(drv, ifidx); 9504 os_free(new_bss); 9505 return -1; 9506 } 9507 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ); 9508 os_memcpy(new_bss->addr, if_addr, ETH_ALEN); 9509 new_bss->ifindex = ifidx; 9510 new_bss->drv = drv; 9511 new_bss->next = drv->first_bss->next; 9512 new_bss->freq = drv->first_bss->freq; 9513 new_bss->ctx = bss_ctx; 9514 new_bss->added_if = added; 9515 drv->first_bss->next = new_bss; 9516 if (drv_priv) 9517 *drv_priv = new_bss; 9518 nl80211_init_bss(new_bss); 9519 9520 /* Subscribe management frames for this WPA_IF_AP_BSS */ 9521 if (nl80211_setup_ap(new_bss)) 9522 return -1; 9523 } 9524 9525 if (drv->global) 9526 drv->global->if_add_ifindex = ifidx; 9527 9528 return 0; 9529} 9530 9531 9532static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 9533 enum wpa_driver_if_type type, 9534 const char *ifname) 9535{ 9536 struct wpa_driver_nl80211_data *drv = bss->drv; 9537 int ifindex = if_nametoindex(ifname); 9538 9539 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d added_if=%d", 9540 __func__, type, ifname, ifindex, bss->added_if); 9541 if (ifindex > 0 && (bss->added_if || bss->ifindex != ifindex)) 9542 nl80211_remove_iface(drv, ifindex); 9543 9544 if (type != WPA_IF_AP_BSS) 9545 return 0; 9546 9547 if (bss->added_if_into_bridge) { 9548 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 9549 bss->ifname) < 0) 9550 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 9551 "interface %s from bridge %s: %s", 9552 bss->ifname, bss->brname, strerror(errno)); 9553 } 9554 if (bss->added_bridge) { 9555 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 9556 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 9557 "bridge %s: %s", 9558 bss->brname, strerror(errno)); 9559 } 9560 9561 if (bss != drv->first_bss) { 9562 struct i802_bss *tbss; 9563 9564 wpa_printf(MSG_DEBUG, "nl80211: Not the first BSS - remove it"); 9565 for (tbss = drv->first_bss; tbss; tbss = tbss->next) { 9566 if (tbss->next == bss) { 9567 tbss->next = bss->next; 9568 /* Unsubscribe management frames */ 9569 nl80211_teardown_ap(bss); 9570 nl80211_destroy_bss(bss); 9571 os_free(bss); 9572 bss = NULL; 9573 break; 9574 } 9575 } 9576 if (bss) 9577 wpa_printf(MSG_INFO, "nl80211: %s - could not find " 9578 "BSS %p in the list", __func__, bss); 9579 } else { 9580 wpa_printf(MSG_DEBUG, "nl80211: First BSS - reassign context"); 9581 nl80211_teardown_ap(bss); 9582 if (!bss->added_if && !drv->first_bss->next) 9583 wpa_driver_nl80211_del_beacon(drv); 9584 nl80211_destroy_bss(bss); 9585 if (!bss->added_if) 9586 i802_set_iface_flags(bss, 0); 9587 if (drv->first_bss->next) { 9588 drv->first_bss = drv->first_bss->next; 9589 drv->ctx = drv->first_bss->ctx; 9590 os_free(bss); 9591 } else { 9592 wpa_printf(MSG_DEBUG, "nl80211: No second BSS to reassign context to"); 9593 } 9594 } 9595 9596 return 0; 9597} 9598 9599 9600static int cookie_handler(struct nl_msg *msg, void *arg) 9601{ 9602 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9603 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9604 u64 *cookie = arg; 9605 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9606 genlmsg_attrlen(gnlh, 0), NULL); 9607 if (tb[NL80211_ATTR_COOKIE]) 9608 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 9609 return NL_SKIP; 9610} 9611 9612 9613static int nl80211_send_frame_cmd(struct i802_bss *bss, 9614 unsigned int freq, unsigned int wait, 9615 const u8 *buf, size_t buf_len, 9616 u64 *cookie_out, int no_cck, int no_ack, 9617 int offchanok) 9618{ 9619 struct wpa_driver_nl80211_data *drv = bss->drv; 9620 struct nl_msg *msg; 9621 u64 cookie; 9622 int ret = -1; 9623 9624 msg = nlmsg_alloc(); 9625 if (!msg) 9626 return -1; 9627 9628 wpa_printf(MSG_MSGDUMP, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d " 9629 "no_ack=%d offchanok=%d", 9630 freq, wait, no_cck, no_ack, offchanok); 9631 wpa_hexdump(MSG_MSGDUMP, "CMD_FRAME", buf, buf_len); 9632 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME); 9633 9634 if (nl80211_set_iface_id(msg, bss) < 0) 9635 goto nla_put_failure; 9636 if (freq) 9637 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 9638 if (wait) 9639 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait); 9640 if (offchanok && (drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX)) 9641 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK); 9642 if (no_cck) 9643 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 9644 if (no_ack) 9645 NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK); 9646 9647 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf); 9648 9649 cookie = 0; 9650 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 9651 msg = NULL; 9652 if (ret) { 9653 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d " 9654 "(%s) (freq=%u wait=%u)", ret, strerror(-ret), 9655 freq, wait); 9656 goto nla_put_failure; 9657 } 9658 wpa_printf(MSG_MSGDUMP, "nl80211: Frame TX command accepted%s; " 9659 "cookie 0x%llx", no_ack ? " (no ACK)" : "", 9660 (long long unsigned int) cookie); 9661 9662 if (cookie_out) 9663 *cookie_out = no_ack ? (u64) -1 : cookie; 9664 9665nla_put_failure: 9666 nlmsg_free(msg); 9667 return ret; 9668} 9669 9670 9671static int wpa_driver_nl80211_send_action(struct i802_bss *bss, 9672 unsigned int freq, 9673 unsigned int wait_time, 9674 const u8 *dst, const u8 *src, 9675 const u8 *bssid, 9676 const u8 *data, size_t data_len, 9677 int no_cck) 9678{ 9679 struct wpa_driver_nl80211_data *drv = bss->drv; 9680 int ret = -1; 9681 u8 *buf; 9682 struct ieee80211_hdr *hdr; 9683 9684 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, " 9685 "freq=%u MHz wait=%d ms no_cck=%d)", 9686 drv->ifindex, freq, wait_time, no_cck); 9687 9688 buf = os_zalloc(24 + data_len); 9689 if (buf == NULL) 9690 return ret; 9691 os_memcpy(buf + 24, data, data_len); 9692 hdr = (struct ieee80211_hdr *) buf; 9693 hdr->frame_control = 9694 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION); 9695 os_memcpy(hdr->addr1, dst, ETH_ALEN); 9696 os_memcpy(hdr->addr2, src, ETH_ALEN); 9697 os_memcpy(hdr->addr3, bssid, ETH_ALEN); 9698 9699 if (is_ap_interface(drv->nlmode) && 9700 (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) || 9701 (int) freq == bss->freq || drv->device_ap_sme || 9702 !drv->use_monitor)) 9703 ret = wpa_driver_nl80211_send_mlme(bss, buf, 24 + data_len, 9704 0, freq, no_cck, 1, 9705 wait_time); 9706 else 9707 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf, 9708 24 + data_len, 9709 &drv->send_action_cookie, 9710 no_cck, 0, 1); 9711 9712 os_free(buf); 9713 return ret; 9714} 9715 9716 9717static void wpa_driver_nl80211_send_action_cancel_wait(void *priv) 9718{ 9719 struct i802_bss *bss = priv; 9720 struct wpa_driver_nl80211_data *drv = bss->drv; 9721 struct nl_msg *msg; 9722 int ret; 9723 9724 msg = nlmsg_alloc(); 9725 if (!msg) 9726 return; 9727 9728 wpa_printf(MSG_DEBUG, "nl80211: Cancel TX frame wait: cookie=0x%llx", 9729 (long long unsigned int) drv->send_action_cookie); 9730 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL); 9731 9732 if (nl80211_set_iface_id(msg, bss) < 0) 9733 goto nla_put_failure; 9734 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie); 9735 9736 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9737 msg = NULL; 9738 if (ret) 9739 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d " 9740 "(%s)", ret, strerror(-ret)); 9741 9742 nla_put_failure: 9743 nlmsg_free(msg); 9744} 9745 9746 9747static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq, 9748 unsigned int duration) 9749{ 9750 struct i802_bss *bss = priv; 9751 struct wpa_driver_nl80211_data *drv = bss->drv; 9752 struct nl_msg *msg; 9753 int ret; 9754 u64 cookie; 9755 9756 msg = nlmsg_alloc(); 9757 if (!msg) 9758 return -1; 9759 9760 nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL); 9761 9762 if (nl80211_set_iface_id(msg, bss) < 0) 9763 goto nla_put_failure; 9764 9765 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 9766 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); 9767 9768 cookie = 0; 9769 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 9770 msg = NULL; 9771 if (ret == 0) { 9772 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie " 9773 "0x%llx for freq=%u MHz duration=%u", 9774 (long long unsigned int) cookie, freq, duration); 9775 drv->remain_on_chan_cookie = cookie; 9776 drv->pending_remain_on_chan = 1; 9777 return 0; 9778 } 9779 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel " 9780 "(freq=%d duration=%u): %d (%s)", 9781 freq, duration, ret, strerror(-ret)); 9782nla_put_failure: 9783 nlmsg_free(msg); 9784 return -1; 9785} 9786 9787 9788static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv) 9789{ 9790 struct i802_bss *bss = priv; 9791 struct wpa_driver_nl80211_data *drv = bss->drv; 9792 struct nl_msg *msg; 9793 int ret; 9794 9795 if (!drv->pending_remain_on_chan) { 9796 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel " 9797 "to cancel"); 9798 return -1; 9799 } 9800 9801 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie " 9802 "0x%llx", 9803 (long long unsigned int) drv->remain_on_chan_cookie); 9804 9805 msg = nlmsg_alloc(); 9806 if (!msg) 9807 return -1; 9808 9809 nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL); 9810 9811 if (nl80211_set_iface_id(msg, bss) < 0) 9812 goto nla_put_failure; 9813 9814 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie); 9815 9816 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9817 msg = NULL; 9818 if (ret == 0) 9819 return 0; 9820 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: " 9821 "%d (%s)", ret, strerror(-ret)); 9822nla_put_failure: 9823 nlmsg_free(msg); 9824 return -1; 9825} 9826 9827 9828static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report) 9829{ 9830 struct wpa_driver_nl80211_data *drv = bss->drv; 9831 9832 if (!report) { 9833 if (bss->nl_preq && drv->device_ap_sme && 9834 is_ap_interface(drv->nlmode)) { 9835 /* 9836 * Do not disable Probe Request reporting that was 9837 * enabled in nl80211_setup_ap(). 9838 */ 9839 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of " 9840 "Probe Request reporting nl_preq=%p while " 9841 "in AP mode", bss->nl_preq); 9842 } else if (bss->nl_preq) { 9843 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request " 9844 "reporting nl_preq=%p", bss->nl_preq); 9845 nl80211_destroy_eloop_handle(&bss->nl_preq); 9846 } 9847 return 0; 9848 } 9849 9850 if (bss->nl_preq) { 9851 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting " 9852 "already on! nl_preq=%p", bss->nl_preq); 9853 return 0; 9854 } 9855 9856 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq"); 9857 if (bss->nl_preq == NULL) 9858 return -1; 9859 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request " 9860 "reporting nl_preq=%p", bss->nl_preq); 9861 9862 if (nl80211_register_frame(bss, bss->nl_preq, 9863 (WLAN_FC_TYPE_MGMT << 2) | 9864 (WLAN_FC_STYPE_PROBE_REQ << 4), 9865 NULL, 0) < 0) 9866 goto out_err; 9867 9868 nl80211_register_eloop_read(&bss->nl_preq, 9869 wpa_driver_nl80211_event_receive, 9870 bss->nl_cb); 9871 9872 return 0; 9873 9874 out_err: 9875 nl_destroy_handles(&bss->nl_preq); 9876 return -1; 9877} 9878 9879 9880static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 9881 int ifindex, int disabled) 9882{ 9883 struct nl_msg *msg; 9884 struct nlattr *bands, *band; 9885 int ret; 9886 9887 msg = nlmsg_alloc(); 9888 if (!msg) 9889 return -1; 9890 9891 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK); 9892 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 9893 9894 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES); 9895 if (!bands) 9896 goto nla_put_failure; 9897 9898 /* 9899 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything 9900 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS 9901 * rates. All 5 GHz rates are left enabled. 9902 */ 9903 band = nla_nest_start(msg, NL80211_BAND_2GHZ); 9904 if (!band) 9905 goto nla_put_failure; 9906 if (disabled) { 9907 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8, 9908 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 9909 } 9910 nla_nest_end(msg, band); 9911 9912 nla_nest_end(msg, bands); 9913 9914 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9915 msg = NULL; 9916 if (ret) { 9917 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d " 9918 "(%s)", ret, strerror(-ret)); 9919 } else 9920 drv->disabled_11b_rates = disabled; 9921 9922 return ret; 9923 9924nla_put_failure: 9925 nlmsg_free(msg); 9926 return -1; 9927} 9928 9929 9930static int wpa_driver_nl80211_deinit_ap(void *priv) 9931{ 9932 struct i802_bss *bss = priv; 9933 struct wpa_driver_nl80211_data *drv = bss->drv; 9934 if (!is_ap_interface(drv->nlmode)) 9935 return -1; 9936 wpa_driver_nl80211_del_beacon(drv); 9937 9938 /* 9939 * If the P2P GO interface was dynamically added, then it is 9940 * possible that the interface change to station is not possible. 9941 */ 9942 if (drv->nlmode == NL80211_IFTYPE_P2P_GO && bss->if_dynamic) 9943 return 0; 9944 9945 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 9946} 9947 9948 9949static int wpa_driver_nl80211_stop_ap(void *priv) 9950{ 9951 struct i802_bss *bss = priv; 9952 struct wpa_driver_nl80211_data *drv = bss->drv; 9953 if (!is_ap_interface(drv->nlmode)) 9954 return -1; 9955 wpa_driver_nl80211_del_beacon(drv); 9956 bss->beacon_set = 0; 9957 return 0; 9958} 9959 9960 9961static int wpa_driver_nl80211_deinit_p2p_cli(void *priv) 9962{ 9963 struct i802_bss *bss = priv; 9964 struct wpa_driver_nl80211_data *drv = bss->drv; 9965 if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT) 9966 return -1; 9967 9968 /* 9969 * If the P2P Client interface was dynamically added, then it is 9970 * possible that the interface change to station is not possible. 9971 */ 9972 if (bss->if_dynamic) 9973 return 0; 9974 9975 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 9976} 9977 9978 9979static void wpa_driver_nl80211_resume(void *priv) 9980{ 9981 struct i802_bss *bss = priv; 9982 9983 if (i802_set_iface_flags(bss, 1)) 9984 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on resume event"); 9985} 9986 9987 9988static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap, 9989 const u8 *ies, size_t ies_len) 9990{ 9991 struct i802_bss *bss = priv; 9992 struct wpa_driver_nl80211_data *drv = bss->drv; 9993 int ret; 9994 u8 *data, *pos; 9995 size_t data_len; 9996 const u8 *own_addr = bss->addr; 9997 9998 if (action != 1) { 9999 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action " 10000 "action %d", action); 10001 return -1; 10002 } 10003 10004 /* 10005 * Action frame payload: 10006 * Category[1] = 6 (Fast BSS Transition) 10007 * Action[1] = 1 (Fast BSS Transition Request) 10008 * STA Address 10009 * Target AP Address 10010 * FT IEs 10011 */ 10012 10013 data_len = 2 + 2 * ETH_ALEN + ies_len; 10014 data = os_malloc(data_len); 10015 if (data == NULL) 10016 return -1; 10017 pos = data; 10018 *pos++ = 0x06; /* FT Action category */ 10019 *pos++ = action; 10020 os_memcpy(pos, own_addr, ETH_ALEN); 10021 pos += ETH_ALEN; 10022 os_memcpy(pos, target_ap, ETH_ALEN); 10023 pos += ETH_ALEN; 10024 os_memcpy(pos, ies, ies_len); 10025 10026 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0, 10027 drv->bssid, own_addr, drv->bssid, 10028 data, data_len, 0); 10029 os_free(data); 10030 10031 return ret; 10032} 10033 10034 10035static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis) 10036{ 10037 struct i802_bss *bss = priv; 10038 struct wpa_driver_nl80211_data *drv = bss->drv; 10039 struct nl_msg *msg; 10040 struct nlattr *cqm; 10041 int ret = -1; 10042 10043 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d " 10044 "hysteresis=%d", threshold, hysteresis); 10045 10046 msg = nlmsg_alloc(); 10047 if (!msg) 10048 return -1; 10049 10050 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM); 10051 10052 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10053 10054 cqm = nla_nest_start(msg, NL80211_ATTR_CQM); 10055 if (cqm == NULL) 10056 goto nla_put_failure; 10057 10058 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THOLD, threshold); 10059 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_HYST, hysteresis); 10060 nla_nest_end(msg, cqm); 10061 10062 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10063 msg = NULL; 10064 10065nla_put_failure: 10066 nlmsg_free(msg); 10067 return ret; 10068} 10069 10070 10071static int get_channel_width(struct nl_msg *msg, void *arg) 10072{ 10073 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 10074 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 10075 struct wpa_signal_info *sig_change = arg; 10076 10077 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 10078 genlmsg_attrlen(gnlh, 0), NULL); 10079 10080 sig_change->center_frq1 = -1; 10081 sig_change->center_frq2 = -1; 10082 sig_change->chanwidth = CHAN_WIDTH_UNKNOWN; 10083 10084 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) { 10085 sig_change->chanwidth = convert2width( 10086 nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH])); 10087 if (tb[NL80211_ATTR_CENTER_FREQ1]) 10088 sig_change->center_frq1 = 10089 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); 10090 if (tb[NL80211_ATTR_CENTER_FREQ2]) 10091 sig_change->center_frq2 = 10092 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); 10093 } 10094 10095 return NL_SKIP; 10096} 10097 10098 10099static int nl80211_get_channel_width(struct wpa_driver_nl80211_data *drv, 10100 struct wpa_signal_info *sig) 10101{ 10102 struct nl_msg *msg; 10103 10104 msg = nlmsg_alloc(); 10105 if (!msg) 10106 return -ENOMEM; 10107 10108 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_INTERFACE); 10109 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10110 10111 return send_and_recv_msgs(drv, msg, get_channel_width, sig); 10112 10113nla_put_failure: 10114 nlmsg_free(msg); 10115 return -ENOBUFS; 10116} 10117 10118 10119static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si) 10120{ 10121 struct i802_bss *bss = priv; 10122 struct wpa_driver_nl80211_data *drv = bss->drv; 10123 int res; 10124 10125 os_memset(si, 0, sizeof(*si)); 10126 res = nl80211_get_link_signal(drv, si); 10127 if (res != 0) 10128 return res; 10129 10130 res = nl80211_get_channel_width(drv, si); 10131 if (res != 0) 10132 return res; 10133 10134 return nl80211_get_link_noise(drv, si); 10135} 10136 10137 10138static int wpa_driver_nl80211_shared_freq(void *priv) 10139{ 10140 struct i802_bss *bss = priv; 10141 struct wpa_driver_nl80211_data *drv = bss->drv; 10142 struct wpa_driver_nl80211_data *driver; 10143 int freq = 0; 10144 10145 /* 10146 * If the same PHY is in connected state with some other interface, 10147 * then retrieve the assoc freq. 10148 */ 10149 wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s", 10150 drv->phyname); 10151 10152 dl_list_for_each(driver, &drv->global->interfaces, 10153 struct wpa_driver_nl80211_data, list) { 10154 if (drv == driver || 10155 os_strcmp(drv->phyname, driver->phyname) != 0 || 10156 !driver->associated) 10157 continue; 10158 10159 wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s " 10160 MACSTR, 10161 driver->phyname, driver->first_bss->ifname, 10162 MAC2STR(driver->first_bss->addr)); 10163 if (is_ap_interface(driver->nlmode)) 10164 freq = driver->first_bss->freq; 10165 else 10166 freq = nl80211_get_assoc_freq(driver); 10167 wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d", 10168 drv->phyname, freq); 10169 } 10170 10171 if (!freq) 10172 wpa_printf(MSG_DEBUG, "nl80211: No shared interface for " 10173 "PHY (%s) in associated state", drv->phyname); 10174 10175 return freq; 10176} 10177 10178 10179static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len, 10180 int encrypt) 10181{ 10182 struct i802_bss *bss = priv; 10183 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0, 10184 0, 0, 0, 0); 10185} 10186 10187 10188static int nl80211_set_param(void *priv, const char *param) 10189{ 10190 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param); 10191 if (param == NULL) 10192 return 0; 10193 10194#ifdef CONFIG_P2P 10195 if (os_strstr(param, "use_p2p_group_interface=1")) { 10196 struct i802_bss *bss = priv; 10197 struct wpa_driver_nl80211_data *drv = bss->drv; 10198 10199 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 10200 "interface"); 10201 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 10202 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 10203 } 10204 10205 if (os_strstr(param, "p2p_device=1")) { 10206 struct i802_bss *bss = priv; 10207 struct wpa_driver_nl80211_data *drv = bss->drv; 10208 drv->allow_p2p_device = 1; 10209 } 10210#endif /* CONFIG_P2P */ 10211 10212 return 0; 10213} 10214 10215 10216static void * nl80211_global_init(void) 10217{ 10218 struct nl80211_global *global; 10219 struct netlink_config *cfg; 10220 10221 global = os_zalloc(sizeof(*global)); 10222 if (global == NULL) 10223 return NULL; 10224 global->ioctl_sock = -1; 10225 dl_list_init(&global->interfaces); 10226 global->if_add_ifindex = -1; 10227 10228 cfg = os_zalloc(sizeof(*cfg)); 10229 if (cfg == NULL) 10230 goto err; 10231 10232 cfg->ctx = global; 10233 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink; 10234 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink; 10235 global->netlink = netlink_init(cfg); 10236 if (global->netlink == NULL) { 10237 os_free(cfg); 10238 goto err; 10239 } 10240 10241 if (wpa_driver_nl80211_init_nl_global(global) < 0) 10242 goto err; 10243 10244 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0); 10245 if (global->ioctl_sock < 0) { 10246 wpa_printf(MSG_ERROR, "nl80211: socket(PF_INET,SOCK_DGRAM) failed: %s", 10247 strerror(errno)); 10248 goto err; 10249 } 10250 10251 return global; 10252 10253err: 10254 nl80211_global_deinit(global); 10255 return NULL; 10256} 10257 10258 10259static void nl80211_global_deinit(void *priv) 10260{ 10261 struct nl80211_global *global = priv; 10262 if (global == NULL) 10263 return; 10264 if (!dl_list_empty(&global->interfaces)) { 10265 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at " 10266 "nl80211_global_deinit", 10267 dl_list_len(&global->interfaces)); 10268 } 10269 10270 if (global->netlink) 10271 netlink_deinit(global->netlink); 10272 10273 nl_destroy_handles(&global->nl); 10274 10275 if (global->nl_event) 10276 nl80211_destroy_eloop_handle(&global->nl_event); 10277 10278 nl_cb_put(global->nl_cb); 10279 10280 if (global->ioctl_sock >= 0) 10281 close(global->ioctl_sock); 10282 10283 os_free(global); 10284} 10285 10286 10287static const char * nl80211_get_radio_name(void *priv) 10288{ 10289 struct i802_bss *bss = priv; 10290 struct wpa_driver_nl80211_data *drv = bss->drv; 10291 return drv->phyname; 10292} 10293 10294 10295static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid, 10296 const u8 *pmkid) 10297{ 10298 struct nl_msg *msg; 10299 10300 msg = nlmsg_alloc(); 10301 if (!msg) 10302 return -ENOMEM; 10303 10304 nl80211_cmd(bss->drv, msg, 0, cmd); 10305 10306 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 10307 if (pmkid) 10308 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid); 10309 if (bssid) 10310 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); 10311 10312 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 10313 nla_put_failure: 10314 nlmsg_free(msg); 10315 return -ENOBUFS; 10316} 10317 10318 10319static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 10320{ 10321 struct i802_bss *bss = priv; 10322 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid)); 10323 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid); 10324} 10325 10326 10327static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 10328{ 10329 struct i802_bss *bss = priv; 10330 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR, 10331 MAC2STR(bssid)); 10332 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid); 10333} 10334 10335 10336static int nl80211_flush_pmkid(void *priv) 10337{ 10338 struct i802_bss *bss = priv; 10339 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs"); 10340 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL); 10341} 10342 10343 10344static void clean_survey_results(struct survey_results *survey_results) 10345{ 10346 struct freq_survey *survey, *tmp; 10347 10348 if (dl_list_empty(&survey_results->survey_list)) 10349 return; 10350 10351 dl_list_for_each_safe(survey, tmp, &survey_results->survey_list, 10352 struct freq_survey, list) { 10353 dl_list_del(&survey->list); 10354 os_free(survey); 10355 } 10356} 10357 10358 10359static void add_survey(struct nlattr **sinfo, u32 ifidx, 10360 struct dl_list *survey_list) 10361{ 10362 struct freq_survey *survey; 10363 10364 survey = os_zalloc(sizeof(struct freq_survey)); 10365 if (!survey) 10366 return; 10367 10368 survey->ifidx = ifidx; 10369 survey->freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); 10370 survey->filled = 0; 10371 10372 if (sinfo[NL80211_SURVEY_INFO_NOISE]) { 10373 survey->nf = (int8_t) 10374 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 10375 survey->filled |= SURVEY_HAS_NF; 10376 } 10377 10378 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]) { 10379 survey->channel_time = 10380 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]); 10381 survey->filled |= SURVEY_HAS_CHAN_TIME; 10382 } 10383 10384 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]) { 10385 survey->channel_time_busy = 10386 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]); 10387 survey->filled |= SURVEY_HAS_CHAN_TIME_BUSY; 10388 } 10389 10390 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]) { 10391 survey->channel_time_rx = 10392 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]); 10393 survey->filled |= SURVEY_HAS_CHAN_TIME_RX; 10394 } 10395 10396 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]) { 10397 survey->channel_time_tx = 10398 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]); 10399 survey->filled |= SURVEY_HAS_CHAN_TIME_TX; 10400 } 10401 10402 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)", 10403 survey->freq, 10404 survey->nf, 10405 (unsigned long int) survey->channel_time, 10406 (unsigned long int) survey->channel_time_busy, 10407 (unsigned long int) survey->channel_time_tx, 10408 (unsigned long int) survey->channel_time_rx, 10409 survey->filled); 10410 10411 dl_list_add_tail(survey_list, &survey->list); 10412} 10413 10414 10415static int check_survey_ok(struct nlattr **sinfo, u32 surveyed_freq, 10416 unsigned int freq_filter) 10417{ 10418 if (!freq_filter) 10419 return 1; 10420 10421 return freq_filter == surveyed_freq; 10422} 10423 10424 10425static int survey_handler(struct nl_msg *msg, void *arg) 10426{ 10427 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 10428 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 10429 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 10430 struct survey_results *survey_results; 10431 u32 surveyed_freq = 0; 10432 u32 ifidx; 10433 10434 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 10435 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 10436 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 10437 }; 10438 10439 survey_results = (struct survey_results *) arg; 10440 10441 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 10442 genlmsg_attrlen(gnlh, 0), NULL); 10443 10444 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 10445 10446 if (!tb[NL80211_ATTR_SURVEY_INFO]) 10447 return NL_SKIP; 10448 10449 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 10450 tb[NL80211_ATTR_SURVEY_INFO], 10451 survey_policy)) 10452 return NL_SKIP; 10453 10454 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) { 10455 wpa_printf(MSG_ERROR, "nl80211: Invalid survey data"); 10456 return NL_SKIP; 10457 } 10458 10459 surveyed_freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); 10460 10461 if (!check_survey_ok(sinfo, surveyed_freq, 10462 survey_results->freq_filter)) 10463 return NL_SKIP; 10464 10465 if (survey_results->freq_filter && 10466 survey_results->freq_filter != surveyed_freq) { 10467 wpa_printf(MSG_EXCESSIVE, "nl80211: Ignoring survey data for freq %d MHz", 10468 surveyed_freq); 10469 return NL_SKIP; 10470 } 10471 10472 add_survey(sinfo, ifidx, &survey_results->survey_list); 10473 10474 return NL_SKIP; 10475} 10476 10477 10478static int wpa_driver_nl80211_get_survey(void *priv, unsigned int freq) 10479{ 10480 struct i802_bss *bss = priv; 10481 struct wpa_driver_nl80211_data *drv = bss->drv; 10482 struct nl_msg *msg; 10483 int err = -ENOBUFS; 10484 union wpa_event_data data; 10485 struct survey_results *survey_results; 10486 10487 os_memset(&data, 0, sizeof(data)); 10488 survey_results = &data.survey_results; 10489 10490 dl_list_init(&survey_results->survey_list); 10491 10492 msg = nlmsg_alloc(); 10493 if (!msg) 10494 goto nla_put_failure; 10495 10496 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 10497 10498 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10499 10500 if (freq) 10501 data.survey_results.freq_filter = freq; 10502 10503 do { 10504 wpa_printf(MSG_DEBUG, "nl80211: Fetch survey data"); 10505 err = send_and_recv_msgs(drv, msg, survey_handler, 10506 survey_results); 10507 } while (err > 0); 10508 10509 if (err) { 10510 wpa_printf(MSG_ERROR, "nl80211: Failed to process survey data"); 10511 goto out_clean; 10512 } 10513 10514 wpa_supplicant_event(drv->ctx, EVENT_SURVEY, &data); 10515 10516out_clean: 10517 clean_survey_results(survey_results); 10518nla_put_failure: 10519 return err; 10520} 10521 10522 10523static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck, 10524 const u8 *replay_ctr) 10525{ 10526 struct i802_bss *bss = priv; 10527 struct wpa_driver_nl80211_data *drv = bss->drv; 10528 struct nlattr *replay_nested; 10529 struct nl_msg *msg; 10530 10531 msg = nlmsg_alloc(); 10532 if (!msg) 10533 return; 10534 10535 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD); 10536 10537 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10538 10539 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); 10540 if (!replay_nested) 10541 goto nla_put_failure; 10542 10543 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek); 10544 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck); 10545 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN, 10546 replay_ctr); 10547 10548 nla_nest_end(msg, replay_nested); 10549 10550 send_and_recv_msgs(drv, msg, NULL, NULL); 10551 return; 10552 nla_put_failure: 10553 nlmsg_free(msg); 10554} 10555 10556 10557static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr, 10558 const u8 *addr, int qos) 10559{ 10560 /* send data frame to poll STA and check whether 10561 * this frame is ACKed */ 10562 struct { 10563 struct ieee80211_hdr hdr; 10564 u16 qos_ctl; 10565 } STRUCT_PACKED nulldata; 10566 size_t size; 10567 10568 /* Send data frame to poll STA and check whether this frame is ACKed */ 10569 10570 os_memset(&nulldata, 0, sizeof(nulldata)); 10571 10572 if (qos) { 10573 nulldata.hdr.frame_control = 10574 IEEE80211_FC(WLAN_FC_TYPE_DATA, 10575 WLAN_FC_STYPE_QOS_NULL); 10576 size = sizeof(nulldata); 10577 } else { 10578 nulldata.hdr.frame_control = 10579 IEEE80211_FC(WLAN_FC_TYPE_DATA, 10580 WLAN_FC_STYPE_NULLFUNC); 10581 size = sizeof(struct ieee80211_hdr); 10582 } 10583 10584 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS); 10585 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN); 10586 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 10587 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 10588 10589 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0, 0, 0, 10590 0, 0) < 0) 10591 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to " 10592 "send poll frame"); 10593} 10594 10595static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr, 10596 int qos) 10597{ 10598 struct i802_bss *bss = priv; 10599 struct wpa_driver_nl80211_data *drv = bss->drv; 10600 struct nl_msg *msg; 10601 10602 if (!drv->poll_command_supported) { 10603 nl80211_send_null_frame(bss, own_addr, addr, qos); 10604 return; 10605 } 10606 10607 msg = nlmsg_alloc(); 10608 if (!msg) 10609 return; 10610 10611 nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT); 10612 10613 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10614 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 10615 10616 send_and_recv_msgs(drv, msg, NULL, NULL); 10617 return; 10618 nla_put_failure: 10619 nlmsg_free(msg); 10620} 10621 10622 10623static int nl80211_set_power_save(struct i802_bss *bss, int enabled) 10624{ 10625 struct nl_msg *msg; 10626 10627 msg = nlmsg_alloc(); 10628 if (!msg) 10629 return -ENOMEM; 10630 10631 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE); 10632 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10633 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, 10634 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED); 10635 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 10636nla_put_failure: 10637 nlmsg_free(msg); 10638 return -ENOBUFS; 10639} 10640 10641 10642static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps, 10643 int ctwindow) 10644{ 10645 struct i802_bss *bss = priv; 10646 10647 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d " 10648 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow); 10649 10650 if (opp_ps != -1 || ctwindow != -1) { 10651#ifdef ANDROID_P2P 10652 wpa_driver_set_p2p_ps(priv, legacy_ps, opp_ps, ctwindow); 10653#else /* ANDROID_P2P */ 10654 return -1; /* Not yet supported */ 10655#endif /* ANDROID_P2P */ 10656 } 10657 10658 if (legacy_ps == -1) 10659 return 0; 10660 if (legacy_ps != 0 && legacy_ps != 1) 10661 return -1; /* Not yet supported */ 10662 10663 return nl80211_set_power_save(bss, legacy_ps); 10664} 10665 10666 10667static int nl80211_start_radar_detection(void *priv, 10668 struct hostapd_freq_params *freq) 10669{ 10670 struct i802_bss *bss = priv; 10671 struct wpa_driver_nl80211_data *drv = bss->drv; 10672 struct nl_msg *msg; 10673 int ret; 10674 10675 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)", 10676 freq->freq, freq->ht_enabled, freq->vht_enabled, 10677 freq->bandwidth, freq->center_freq1, freq->center_freq2); 10678 10679 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_RADAR)) { 10680 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support radar " 10681 "detection"); 10682 return -1; 10683 } 10684 10685 msg = nlmsg_alloc(); 10686 if (!msg) 10687 return -1; 10688 10689 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_RADAR_DETECT); 10690 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10691 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); 10692 10693 if (freq->vht_enabled) { 10694 switch (freq->bandwidth) { 10695 case 20: 10696 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 10697 NL80211_CHAN_WIDTH_20); 10698 break; 10699 case 40: 10700 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 10701 NL80211_CHAN_WIDTH_40); 10702 break; 10703 case 80: 10704 if (freq->center_freq2) 10705 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 10706 NL80211_CHAN_WIDTH_80P80); 10707 else 10708 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 10709 NL80211_CHAN_WIDTH_80); 10710 break; 10711 case 160: 10712 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 10713 NL80211_CHAN_WIDTH_160); 10714 break; 10715 default: 10716 return -1; 10717 } 10718 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); 10719 if (freq->center_freq2) 10720 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, 10721 freq->center_freq2); 10722 } else if (freq->ht_enabled) { 10723 switch (freq->sec_channel_offset) { 10724 case -1: 10725 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 10726 NL80211_CHAN_HT40MINUS); 10727 break; 10728 case 1: 10729 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 10730 NL80211_CHAN_HT40PLUS); 10731 break; 10732 default: 10733 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 10734 NL80211_CHAN_HT20); 10735 break; 10736 } 10737 } 10738 10739 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10740 if (ret == 0) 10741 return 0; 10742 wpa_printf(MSG_DEBUG, "nl80211: Failed to start radar detection: " 10743 "%d (%s)", ret, strerror(-ret)); 10744nla_put_failure: 10745 return -1; 10746} 10747 10748#ifdef CONFIG_TDLS 10749 10750static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code, 10751 u8 dialog_token, u16 status_code, 10752 const u8 *buf, size_t len) 10753{ 10754 struct i802_bss *bss = priv; 10755 struct wpa_driver_nl80211_data *drv = bss->drv; 10756 struct nl_msg *msg; 10757 10758 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 10759 return -EOPNOTSUPP; 10760 10761 if (!dst) 10762 return -EINVAL; 10763 10764 msg = nlmsg_alloc(); 10765 if (!msg) 10766 return -ENOMEM; 10767 10768 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT); 10769 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10770 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); 10771 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code); 10772 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token); 10773 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code); 10774 NLA_PUT(msg, NL80211_ATTR_IE, len, buf); 10775 10776 return send_and_recv_msgs(drv, msg, NULL, NULL); 10777 10778nla_put_failure: 10779 nlmsg_free(msg); 10780 return -ENOBUFS; 10781} 10782 10783 10784static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer) 10785{ 10786 struct i802_bss *bss = priv; 10787 struct wpa_driver_nl80211_data *drv = bss->drv; 10788 struct nl_msg *msg; 10789 enum nl80211_tdls_operation nl80211_oper; 10790 10791 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 10792 return -EOPNOTSUPP; 10793 10794 switch (oper) { 10795 case TDLS_DISCOVERY_REQ: 10796 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ; 10797 break; 10798 case TDLS_SETUP: 10799 nl80211_oper = NL80211_TDLS_SETUP; 10800 break; 10801 case TDLS_TEARDOWN: 10802 nl80211_oper = NL80211_TDLS_TEARDOWN; 10803 break; 10804 case TDLS_ENABLE_LINK: 10805 nl80211_oper = NL80211_TDLS_ENABLE_LINK; 10806 break; 10807 case TDLS_DISABLE_LINK: 10808 nl80211_oper = NL80211_TDLS_DISABLE_LINK; 10809 break; 10810 case TDLS_ENABLE: 10811 return 0; 10812 case TDLS_DISABLE: 10813 return 0; 10814 default: 10815 return -EINVAL; 10816 } 10817 10818 msg = nlmsg_alloc(); 10819 if (!msg) 10820 return -ENOMEM; 10821 10822 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER); 10823 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper); 10824 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10825 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer); 10826 10827 return send_and_recv_msgs(drv, msg, NULL, NULL); 10828 10829nla_put_failure: 10830 nlmsg_free(msg); 10831 return -ENOBUFS; 10832} 10833 10834#endif /* CONFIG TDLS */ 10835 10836 10837#ifdef ANDROID 10838 10839typedef struct android_wifi_priv_cmd { 10840 char *buf; 10841 int used_len; 10842 int total_len; 10843} android_wifi_priv_cmd; 10844 10845static int drv_errors = 0; 10846 10847static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv) 10848{ 10849 drv_errors++; 10850 if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) { 10851 drv_errors = 0; 10852 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED"); 10853 } 10854} 10855 10856 10857static int android_priv_cmd(struct i802_bss *bss, const char *cmd) 10858{ 10859 struct wpa_driver_nl80211_data *drv = bss->drv; 10860 struct ifreq ifr; 10861 android_wifi_priv_cmd priv_cmd; 10862 char buf[MAX_DRV_CMD_SIZE]; 10863 int ret; 10864 10865 os_memset(&ifr, 0, sizeof(ifr)); 10866 os_memset(&priv_cmd, 0, sizeof(priv_cmd)); 10867 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 10868 10869 os_memset(buf, 0, sizeof(buf)); 10870 os_strlcpy(buf, cmd, sizeof(buf)); 10871 10872 priv_cmd.buf = buf; 10873 priv_cmd.used_len = sizeof(buf); 10874 priv_cmd.total_len = sizeof(buf); 10875 ifr.ifr_data = &priv_cmd; 10876 10877 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 10878 if (ret < 0) { 10879 wpa_printf(MSG_ERROR, "%s: failed to issue private commands", 10880 __func__); 10881 wpa_driver_send_hang_msg(drv); 10882 return ret; 10883 } 10884 10885 drv_errors = 0; 10886 return 0; 10887} 10888 10889 10890static int android_pno_start(struct i802_bss *bss, 10891 struct wpa_driver_scan_params *params) 10892{ 10893 struct wpa_driver_nl80211_data *drv = bss->drv; 10894 struct ifreq ifr; 10895 android_wifi_priv_cmd priv_cmd; 10896 int ret = 0, i = 0, bp; 10897 char buf[WEXT_PNO_MAX_COMMAND_SIZE]; 10898 10899 bp = WEXT_PNOSETUP_HEADER_SIZE; 10900 os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp); 10901 buf[bp++] = WEXT_PNO_TLV_PREFIX; 10902 buf[bp++] = WEXT_PNO_TLV_VERSION; 10903 buf[bp++] = WEXT_PNO_TLV_SUBVERSION; 10904 buf[bp++] = WEXT_PNO_TLV_RESERVED; 10905 10906 while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) { 10907 /* Check that there is enough space needed for 1 more SSID, the 10908 * other sections and null termination */ 10909 if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN + 10910 WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf)) 10911 break; 10912 wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan", 10913 params->ssids[i].ssid, 10914 params->ssids[i].ssid_len); 10915 buf[bp++] = WEXT_PNO_SSID_SECTION; 10916 buf[bp++] = params->ssids[i].ssid_len; 10917 os_memcpy(&buf[bp], params->ssids[i].ssid, 10918 params->ssids[i].ssid_len); 10919 bp += params->ssids[i].ssid_len; 10920 i++; 10921 } 10922 10923 buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION; 10924 os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x", 10925 WEXT_PNO_SCAN_INTERVAL); 10926 bp += WEXT_PNO_SCAN_INTERVAL_LENGTH; 10927 10928 buf[bp++] = WEXT_PNO_REPEAT_SECTION; 10929 os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x", 10930 WEXT_PNO_REPEAT); 10931 bp += WEXT_PNO_REPEAT_LENGTH; 10932 10933 buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION; 10934 os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x", 10935 WEXT_PNO_MAX_REPEAT); 10936 bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1; 10937 10938 memset(&ifr, 0, sizeof(ifr)); 10939 memset(&priv_cmd, 0, sizeof(priv_cmd)); 10940 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 10941 10942 priv_cmd.buf = buf; 10943 priv_cmd.used_len = bp; 10944 priv_cmd.total_len = bp; 10945 ifr.ifr_data = &priv_cmd; 10946 10947 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 10948 10949 if (ret < 0) { 10950 wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d", 10951 ret); 10952 wpa_driver_send_hang_msg(drv); 10953 return ret; 10954 } 10955 10956 drv_errors = 0; 10957 10958 return android_priv_cmd(bss, "PNOFORCE 1"); 10959} 10960 10961 10962static int android_pno_stop(struct i802_bss *bss) 10963{ 10964 return android_priv_cmd(bss, "PNOFORCE 0"); 10965} 10966 10967#endif /* ANDROID */ 10968 10969 10970static int driver_nl80211_set_key(const char *ifname, void *priv, 10971 enum wpa_alg alg, const u8 *addr, 10972 int key_idx, int set_tx, 10973 const u8 *seq, size_t seq_len, 10974 const u8 *key, size_t key_len) 10975{ 10976 struct i802_bss *bss = priv; 10977 return wpa_driver_nl80211_set_key(ifname, bss, alg, addr, key_idx, 10978 set_tx, seq, seq_len, key, key_len); 10979} 10980 10981 10982static int driver_nl80211_scan2(void *priv, 10983 struct wpa_driver_scan_params *params) 10984{ 10985 struct i802_bss *bss = priv; 10986 return wpa_driver_nl80211_scan(bss, params); 10987} 10988 10989 10990static int driver_nl80211_deauthenticate(void *priv, const u8 *addr, 10991 int reason_code) 10992{ 10993 struct i802_bss *bss = priv; 10994 return wpa_driver_nl80211_deauthenticate(bss, addr, reason_code); 10995} 10996 10997 10998static int driver_nl80211_authenticate(void *priv, 10999 struct wpa_driver_auth_params *params) 11000{ 11001 struct i802_bss *bss = priv; 11002 return wpa_driver_nl80211_authenticate(bss, params); 11003} 11004 11005 11006static void driver_nl80211_deinit(void *priv) 11007{ 11008 struct i802_bss *bss = priv; 11009 wpa_driver_nl80211_deinit(bss); 11010} 11011 11012 11013static int driver_nl80211_if_remove(void *priv, enum wpa_driver_if_type type, 11014 const char *ifname) 11015{ 11016 struct i802_bss *bss = priv; 11017 return wpa_driver_nl80211_if_remove(bss, type, ifname); 11018} 11019 11020 11021static int driver_nl80211_send_mlme(void *priv, const u8 *data, 11022 size_t data_len, int noack) 11023{ 11024 struct i802_bss *bss = priv; 11025 return wpa_driver_nl80211_send_mlme(bss, data, data_len, noack, 11026 0, 0, 0, 0); 11027} 11028 11029 11030static int driver_nl80211_sta_remove(void *priv, const u8 *addr) 11031{ 11032 struct i802_bss *bss = priv; 11033 return wpa_driver_nl80211_sta_remove(bss, addr); 11034} 11035 11036 11037static int driver_nl80211_set_sta_vlan(void *priv, const u8 *addr, 11038 const char *ifname, int vlan_id) 11039{ 11040 struct i802_bss *bss = priv; 11041 return i802_set_sta_vlan(bss, addr, ifname, vlan_id); 11042} 11043 11044 11045static int driver_nl80211_read_sta_data(void *priv, 11046 struct hostap_sta_driver_data *data, 11047 const u8 *addr) 11048{ 11049 struct i802_bss *bss = priv; 11050 return i802_read_sta_data(bss, data, addr); 11051} 11052 11053 11054static int driver_nl80211_send_action(void *priv, unsigned int freq, 11055 unsigned int wait_time, 11056 const u8 *dst, const u8 *src, 11057 const u8 *bssid, 11058 const u8 *data, size_t data_len, 11059 int no_cck) 11060{ 11061 struct i802_bss *bss = priv; 11062 return wpa_driver_nl80211_send_action(bss, freq, wait_time, dst, src, 11063 bssid, data, data_len, no_cck); 11064} 11065 11066 11067static int driver_nl80211_probe_req_report(void *priv, int report) 11068{ 11069 struct i802_bss *bss = priv; 11070 return wpa_driver_nl80211_probe_req_report(bss, report); 11071} 11072 11073 11074static int wpa_driver_nl80211_update_ft_ies(void *priv, const u8 *md, 11075 const u8 *ies, size_t ies_len) 11076{ 11077 int ret; 11078 struct nl_msg *msg; 11079 struct i802_bss *bss = priv; 11080 struct wpa_driver_nl80211_data *drv = bss->drv; 11081 u16 mdid = WPA_GET_LE16(md); 11082 11083 msg = nlmsg_alloc(); 11084 if (!msg) 11085 return -ENOMEM; 11086 11087 wpa_printf(MSG_DEBUG, "nl80211: Updating FT IEs"); 11088 nl80211_cmd(drv, msg, 0, NL80211_CMD_UPDATE_FT_IES); 11089 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11090 NLA_PUT(msg, NL80211_ATTR_IE, ies_len, ies); 11091 NLA_PUT_U16(msg, NL80211_ATTR_MDID, mdid); 11092 11093 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 11094 if (ret) { 11095 wpa_printf(MSG_DEBUG, "nl80211: update_ft_ies failed " 11096 "err=%d (%s)", ret, strerror(-ret)); 11097 } 11098 11099 return ret; 11100 11101nla_put_failure: 11102 nlmsg_free(msg); 11103 return -ENOBUFS; 11104} 11105 11106 11107const u8 * wpa_driver_nl80211_get_macaddr(void *priv) 11108{ 11109 struct i802_bss *bss = priv; 11110 struct wpa_driver_nl80211_data *drv = bss->drv; 11111 11112 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) 11113 return NULL; 11114 11115 return bss->addr; 11116} 11117 11118 11119static const char * scan_state_str(enum scan_states scan_state) 11120{ 11121 switch (scan_state) { 11122 case NO_SCAN: 11123 return "NO_SCAN"; 11124 case SCAN_REQUESTED: 11125 return "SCAN_REQUESTED"; 11126 case SCAN_STARTED: 11127 return "SCAN_STARTED"; 11128 case SCAN_COMPLETED: 11129 return "SCAN_COMPLETED"; 11130 case SCAN_ABORTED: 11131 return "SCAN_ABORTED"; 11132 case SCHED_SCAN_STARTED: 11133 return "SCHED_SCAN_STARTED"; 11134 case SCHED_SCAN_STOPPED: 11135 return "SCHED_SCAN_STOPPED"; 11136 case SCHED_SCAN_RESULTS: 11137 return "SCHED_SCAN_RESULTS"; 11138 } 11139 11140 return "??"; 11141} 11142 11143 11144static int wpa_driver_nl80211_status(void *priv, char *buf, size_t buflen) 11145{ 11146 struct i802_bss *bss = priv; 11147 struct wpa_driver_nl80211_data *drv = bss->drv; 11148 int res; 11149 char *pos, *end; 11150 11151 pos = buf; 11152 end = buf + buflen; 11153 11154 res = os_snprintf(pos, end - pos, 11155 "ifindex=%d\n" 11156 "ifname=%s\n" 11157 "brname=%s\n" 11158 "addr=" MACSTR "\n" 11159 "freq=%d\n" 11160 "%s%s%s%s%s", 11161 bss->ifindex, 11162 bss->ifname, 11163 bss->brname, 11164 MAC2STR(bss->addr), 11165 bss->freq, 11166 bss->beacon_set ? "beacon_set=1\n" : "", 11167 bss->added_if_into_bridge ? 11168 "added_if_into_bridge=1\n" : "", 11169 bss->added_bridge ? "added_bridge=1\n" : "", 11170 bss->in_deinit ? "in_deinit=1\n" : "", 11171 bss->if_dynamic ? "if_dynamic=1\n" : ""); 11172 if (res < 0 || res >= end - pos) 11173 return pos - buf; 11174 pos += res; 11175 11176 if (bss->wdev_id_set) { 11177 res = os_snprintf(pos, end - pos, "wdev_id=%llu\n", 11178 (unsigned long long) bss->wdev_id); 11179 if (res < 0 || res >= end - pos) 11180 return pos - buf; 11181 pos += res; 11182 } 11183 11184 res = os_snprintf(pos, end - pos, 11185 "phyname=%s\n" 11186 "drv_ifindex=%d\n" 11187 "operstate=%d\n" 11188 "scan_state=%s\n" 11189 "auth_bssid=" MACSTR "\n" 11190 "auth_attempt_bssid=" MACSTR "\n" 11191 "bssid=" MACSTR "\n" 11192 "prev_bssid=" MACSTR "\n" 11193 "associated=%d\n" 11194 "assoc_freq=%u\n" 11195 "monitor_sock=%d\n" 11196 "monitor_ifidx=%d\n" 11197 "monitor_refcount=%d\n" 11198 "last_mgmt_freq=%u\n" 11199 "eapol_tx_sock=%d\n" 11200 "%s%s%s%s%s%s%s%s%s%s%s%s%s", 11201 drv->phyname, 11202 drv->ifindex, 11203 drv->operstate, 11204 scan_state_str(drv->scan_state), 11205 MAC2STR(drv->auth_bssid), 11206 MAC2STR(drv->auth_attempt_bssid), 11207 MAC2STR(drv->bssid), 11208 MAC2STR(drv->prev_bssid), 11209 drv->associated, 11210 drv->assoc_freq, 11211 drv->monitor_sock, 11212 drv->monitor_ifidx, 11213 drv->monitor_refcount, 11214 drv->last_mgmt_freq, 11215 drv->eapol_tx_sock, 11216 drv->ignore_if_down_event ? 11217 "ignore_if_down_event=1\n" : "", 11218 drv->scan_complete_events ? 11219 "scan_complete_events=1\n" : "", 11220 drv->disabled_11b_rates ? 11221 "disabled_11b_rates=1\n" : "", 11222 drv->pending_remain_on_chan ? 11223 "pending_remain_on_chan=1\n" : "", 11224 drv->in_interface_list ? "in_interface_list=1\n" : "", 11225 drv->device_ap_sme ? "device_ap_sme=1\n" : "", 11226 drv->poll_command_supported ? 11227 "poll_command_supported=1\n" : "", 11228 drv->data_tx_status ? "data_tx_status=1\n" : "", 11229 drv->scan_for_auth ? "scan_for_auth=1\n" : "", 11230 drv->retry_auth ? "retry_auth=1\n" : "", 11231 drv->use_monitor ? "use_monitor=1\n" : "", 11232 drv->ignore_next_local_disconnect ? 11233 "ignore_next_local_disconnect=1\n" : "", 11234 drv->allow_p2p_device ? "allow_p2p_device=1\n" : ""); 11235 if (res < 0 || res >= end - pos) 11236 return pos - buf; 11237 pos += res; 11238 11239 if (drv->has_capability) { 11240 res = os_snprintf(pos, end - pos, 11241 "capa.key_mgmt=0x%x\n" 11242 "capa.enc=0x%x\n" 11243 "capa.auth=0x%x\n" 11244 "capa.flags=0x%x\n" 11245 "capa.max_scan_ssids=%d\n" 11246 "capa.max_sched_scan_ssids=%d\n" 11247 "capa.sched_scan_supported=%d\n" 11248 "capa.max_match_sets=%d\n" 11249 "capa.max_remain_on_chan=%u\n" 11250 "capa.max_stations=%u\n" 11251 "capa.probe_resp_offloads=0x%x\n" 11252 "capa.max_acl_mac_addrs=%u\n" 11253 "capa.num_multichan_concurrent=%u\n", 11254 drv->capa.key_mgmt, 11255 drv->capa.enc, 11256 drv->capa.auth, 11257 drv->capa.flags, 11258 drv->capa.max_scan_ssids, 11259 drv->capa.max_sched_scan_ssids, 11260 drv->capa.sched_scan_supported, 11261 drv->capa.max_match_sets, 11262 drv->capa.max_remain_on_chan, 11263 drv->capa.max_stations, 11264 drv->capa.probe_resp_offloads, 11265 drv->capa.max_acl_mac_addrs, 11266 drv->capa.num_multichan_concurrent); 11267 if (res < 0 || res >= end - pos) 11268 return pos - buf; 11269 pos += res; 11270 } 11271 11272 return pos - buf; 11273} 11274 11275 11276static int set_beacon_data(struct nl_msg *msg, struct beacon_data *settings) 11277{ 11278 if (settings->head) 11279 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, 11280 settings->head_len, settings->head); 11281 11282 if (settings->tail) 11283 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, 11284 settings->tail_len, settings->tail); 11285 11286 if (settings->beacon_ies) 11287 NLA_PUT(msg, NL80211_ATTR_IE, 11288 settings->beacon_ies_len, settings->beacon_ies); 11289 11290 if (settings->proberesp_ies) 11291 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, 11292 settings->proberesp_ies_len, settings->proberesp_ies); 11293 11294 if (settings->assocresp_ies) 11295 NLA_PUT(msg, 11296 NL80211_ATTR_IE_ASSOC_RESP, 11297 settings->assocresp_ies_len, settings->assocresp_ies); 11298 11299 if (settings->probe_resp) 11300 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, 11301 settings->probe_resp_len, settings->probe_resp); 11302 11303 return 0; 11304 11305nla_put_failure: 11306 return -ENOBUFS; 11307} 11308 11309 11310static int nl80211_switch_channel(void *priv, struct csa_settings *settings) 11311{ 11312 struct nl_msg *msg; 11313 struct i802_bss *bss = priv; 11314 struct wpa_driver_nl80211_data *drv = bss->drv; 11315 struct nlattr *beacon_csa; 11316 int ret = -ENOBUFS; 11317 11318 wpa_printf(MSG_DEBUG, "nl80211: Channel switch request (cs_count=%u block_tx=%u freq=%d width=%d cf1=%d cf2=%d)", 11319 settings->cs_count, settings->block_tx, 11320 settings->freq_params.freq, settings->freq_params.bandwidth, 11321 settings->freq_params.center_freq1, 11322 settings->freq_params.center_freq2); 11323 11324 if (!drv->channel_switch_supported) { 11325 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support channel switch command"); 11326 return -EOPNOTSUPP; 11327 } 11328 11329 if ((drv->nlmode != NL80211_IFTYPE_AP) && 11330 (drv->nlmode != NL80211_IFTYPE_P2P_GO)) 11331 return -EOPNOTSUPP; 11332 11333 /* check settings validity */ 11334 if (!settings->beacon_csa.tail || 11335 ((settings->beacon_csa.tail_len <= 11336 settings->counter_offset_beacon) || 11337 (settings->beacon_csa.tail[settings->counter_offset_beacon] != 11338 settings->cs_count))) 11339 return -EINVAL; 11340 11341 if (settings->beacon_csa.probe_resp && 11342 ((settings->beacon_csa.probe_resp_len <= 11343 settings->counter_offset_presp) || 11344 (settings->beacon_csa.probe_resp[settings->counter_offset_presp] != 11345 settings->cs_count))) 11346 return -EINVAL; 11347 11348 msg = nlmsg_alloc(); 11349 if (!msg) 11350 return -ENOMEM; 11351 11352 nl80211_cmd(drv, msg, 0, NL80211_CMD_CHANNEL_SWITCH); 11353 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 11354 NLA_PUT_U32(msg, NL80211_ATTR_CH_SWITCH_COUNT, settings->cs_count); 11355 ret = nl80211_put_freq_params(msg, &settings->freq_params); 11356 if (ret) 11357 goto error; 11358 11359 if (settings->block_tx) 11360 NLA_PUT_FLAG(msg, NL80211_ATTR_CH_SWITCH_BLOCK_TX); 11361 11362 /* beacon_after params */ 11363 ret = set_beacon_data(msg, &settings->beacon_after); 11364 if (ret) 11365 goto error; 11366 11367 /* beacon_csa params */ 11368 beacon_csa = nla_nest_start(msg, NL80211_ATTR_CSA_IES); 11369 if (!beacon_csa) 11370 goto nla_put_failure; 11371 11372 ret = set_beacon_data(msg, &settings->beacon_csa); 11373 if (ret) 11374 goto error; 11375 11376 NLA_PUT_U16(msg, NL80211_ATTR_CSA_C_OFF_BEACON, 11377 settings->counter_offset_beacon); 11378 11379 if (settings->beacon_csa.probe_resp) 11380 NLA_PUT_U16(msg, NL80211_ATTR_CSA_C_OFF_PRESP, 11381 settings->counter_offset_presp); 11382 11383 nla_nest_end(msg, beacon_csa); 11384 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 11385 if (ret) { 11386 wpa_printf(MSG_DEBUG, "nl80211: switch_channel failed err=%d (%s)", 11387 ret, strerror(-ret)); 11388 } 11389 return ret; 11390 11391nla_put_failure: 11392 ret = -ENOBUFS; 11393error: 11394 nlmsg_free(msg); 11395 wpa_printf(MSG_DEBUG, "nl80211: Could not build channel switch request"); 11396 return ret; 11397} 11398 11399 11400const struct wpa_driver_ops wpa_driver_nl80211_ops = { 11401 .name = "nl80211", 11402 .desc = "Linux nl80211/cfg80211", 11403 .get_bssid = wpa_driver_nl80211_get_bssid, 11404 .get_ssid = wpa_driver_nl80211_get_ssid, 11405 .set_key = driver_nl80211_set_key, 11406 .scan2 = driver_nl80211_scan2, 11407 .sched_scan = wpa_driver_nl80211_sched_scan, 11408 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan, 11409 .get_scan_results2 = wpa_driver_nl80211_get_scan_results, 11410 .deauthenticate = driver_nl80211_deauthenticate, 11411 .authenticate = driver_nl80211_authenticate, 11412 .associate = wpa_driver_nl80211_associate, 11413 .global_init = nl80211_global_init, 11414 .global_deinit = nl80211_global_deinit, 11415 .init2 = wpa_driver_nl80211_init, 11416 .deinit = driver_nl80211_deinit, 11417 .get_capa = wpa_driver_nl80211_get_capa, 11418 .set_operstate = wpa_driver_nl80211_set_operstate, 11419 .set_supp_port = wpa_driver_nl80211_set_supp_port, 11420 .set_country = wpa_driver_nl80211_set_country, 11421 .get_country = wpa_driver_nl80211_get_country, 11422 .set_ap = wpa_driver_nl80211_set_ap, 11423 .set_acl = wpa_driver_nl80211_set_acl, 11424 .if_add = wpa_driver_nl80211_if_add, 11425 .if_remove = driver_nl80211_if_remove, 11426 .send_mlme = driver_nl80211_send_mlme, 11427 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data, 11428 .sta_add = wpa_driver_nl80211_sta_add, 11429 .sta_remove = driver_nl80211_sta_remove, 11430 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol, 11431 .sta_set_flags = wpa_driver_nl80211_sta_set_flags, 11432 .hapd_init = i802_init, 11433 .hapd_deinit = i802_deinit, 11434 .set_wds_sta = i802_set_wds_sta, 11435 .get_seqnum = i802_get_seqnum, 11436 .flush = i802_flush, 11437 .get_inact_sec = i802_get_inact_sec, 11438 .sta_clear_stats = i802_sta_clear_stats, 11439 .set_rts = i802_set_rts, 11440 .set_frag = i802_set_frag, 11441 .set_tx_queue_params = i802_set_tx_queue_params, 11442 .set_sta_vlan = driver_nl80211_set_sta_vlan, 11443 .sta_deauth = i802_sta_deauth, 11444 .sta_disassoc = i802_sta_disassoc, 11445 .read_sta_data = driver_nl80211_read_sta_data, 11446 .set_freq = i802_set_freq, 11447 .send_action = driver_nl80211_send_action, 11448 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait, 11449 .remain_on_channel = wpa_driver_nl80211_remain_on_channel, 11450 .cancel_remain_on_channel = 11451 wpa_driver_nl80211_cancel_remain_on_channel, 11452 .probe_req_report = driver_nl80211_probe_req_report, 11453 .deinit_ap = wpa_driver_nl80211_deinit_ap, 11454 .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli, 11455 .resume = wpa_driver_nl80211_resume, 11456 .send_ft_action = nl80211_send_ft_action, 11457 .signal_monitor = nl80211_signal_monitor, 11458 .signal_poll = nl80211_signal_poll, 11459 .send_frame = nl80211_send_frame, 11460 .shared_freq = wpa_driver_nl80211_shared_freq, 11461 .set_param = nl80211_set_param, 11462 .get_radio_name = nl80211_get_radio_name, 11463 .add_pmkid = nl80211_add_pmkid, 11464 .remove_pmkid = nl80211_remove_pmkid, 11465 .flush_pmkid = nl80211_flush_pmkid, 11466 .set_rekey_info = nl80211_set_rekey_info, 11467 .poll_client = nl80211_poll_client, 11468 .set_p2p_powersave = nl80211_set_p2p_powersave, 11469 .start_dfs_cac = nl80211_start_radar_detection, 11470 .stop_ap = wpa_driver_nl80211_stop_ap, 11471#ifdef CONFIG_TDLS 11472 .send_tdls_mgmt = nl80211_send_tdls_mgmt, 11473 .tdls_oper = nl80211_tdls_oper, 11474#endif /* CONFIG_TDLS */ 11475 .update_ft_ies = wpa_driver_nl80211_update_ft_ies, 11476 .get_mac_addr = wpa_driver_nl80211_get_macaddr, 11477 .get_survey = wpa_driver_nl80211_get_survey, 11478 .status = wpa_driver_nl80211_status, 11479 .switch_channel = nl80211_switch_channel, 11480#ifdef ANDROID_P2P 11481 .set_noa = wpa_driver_set_p2p_noa, 11482 .get_noa = wpa_driver_get_p2p_noa, 11483 .set_ap_wps_ie = wpa_driver_set_ap_wps_p2p_ie, 11484#endif /* ANDROID_P2P */ 11485#ifdef ANDROID 11486 .driver_cmd = wpa_driver_nl80211_driver_cmd, 11487#endif /* ANDROID */ 11488}; 11489