driver_nl80211.c revision 5605286c30e1701491bd3af974ae423727750edd
1/* 2 * Driver interaction with Linux nl80211/cfg80211 3 * Copyright (c) 2002-2012, Jouni Malinen <j@w1.fi> 4 * Copyright (c) 2003-2004, Instant802 Networks, Inc. 5 * Copyright (c) 2005-2006, Devicescape Software, Inc. 6 * Copyright (c) 2007, Johannes Berg <johannes@sipsolutions.net> 7 * Copyright (c) 2009-2010, Atheros Communications 8 * 9 * This software may be distributed under the terms of the BSD license. 10 * See README for more details. 11 */ 12 13#include "includes.h" 14#include <sys/ioctl.h> 15#include <sys/types.h> 16#include <sys/stat.h> 17#include <fcntl.h> 18#include <net/if.h> 19#include <netlink/genl/genl.h> 20#include <netlink/genl/family.h> 21#include <netlink/genl/ctrl.h> 22#include <linux/rtnetlink.h> 23#include <netpacket/packet.h> 24#include <linux/filter.h> 25#include <linux/errqueue.h> 26#include "nl80211_copy.h" 27 28#include "common.h" 29#include "eloop.h" 30#include "utils/list.h" 31#include "common/ieee802_11_defs.h" 32#include "common/ieee802_11_common.h" 33#include "l2_packet/l2_packet.h" 34#include "netlink.h" 35#include "linux_ioctl.h" 36#include "radiotap.h" 37#include "radiotap_iter.h" 38#include "rfkill.h" 39#include "driver.h" 40 41#ifndef SO_WIFI_STATUS 42# if defined(__sparc__) 43# define SO_WIFI_STATUS 0x0025 44# elif defined(__parisc__) 45# define SO_WIFI_STATUS 0x4022 46# else 47# define SO_WIFI_STATUS 41 48# endif 49 50# define SCM_WIFI_STATUS SO_WIFI_STATUS 51#endif 52 53#ifndef SO_EE_ORIGIN_TXSTATUS 54#define SO_EE_ORIGIN_TXSTATUS 4 55#endif 56 57#ifndef PACKET_TX_TIMESTAMP 58#define PACKET_TX_TIMESTAMP 16 59#endif 60 61#ifdef ANDROID 62#include "android_drv.h" 63#endif /* ANDROID */ 64#ifdef CONFIG_LIBNL20 65/* libnl 2.0 compatibility code */ 66#define nl_handle nl_sock 67#define nl80211_handle_alloc nl_socket_alloc_cb 68#define nl80211_handle_destroy nl_socket_free 69#else 70/* 71 * libnl 1.1 has a bug, it tries to allocate socket numbers densely 72 * but when you free a socket again it will mess up its bitmap and 73 * and use the wrong number the next time it needs a socket ID. 74 * Therefore, we wrap the handle alloc/destroy and add our own pid 75 * accounting. 76 */ 77static uint32_t port_bitmap[32] = { 0 }; 78 79static struct nl_handle *nl80211_handle_alloc(void *cb) 80{ 81 struct nl_handle *handle; 82 uint32_t pid = getpid() & 0x3FFFFF; 83 int i; 84 85 handle = nl_handle_alloc_cb(cb); 86 87 for (i = 0; i < 1024; i++) { 88 if (port_bitmap[i / 32] & (1 << (i % 32))) 89 continue; 90 port_bitmap[i / 32] |= 1 << (i % 32); 91 pid += i << 22; 92 break; 93 } 94 95 nl_socket_set_local_port(handle, pid); 96 97 return handle; 98} 99 100static void nl80211_handle_destroy(struct nl_handle *handle) 101{ 102 uint32_t port = nl_socket_get_local_port(handle); 103 104 port >>= 22; 105 port_bitmap[port / 32] &= ~(1 << (port % 32)); 106 107 nl_handle_destroy(handle); 108} 109#endif /* CONFIG_LIBNL20 */ 110 111 112static struct nl_handle * nl_create_handle(struct nl_cb *cb, const char *dbg) 113{ 114 struct nl_handle *handle; 115 116 handle = nl80211_handle_alloc(cb); 117 if (handle == NULL) { 118 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " 119 "callbacks (%s)", dbg); 120 return NULL; 121 } 122 123 if (genl_connect(handle)) { 124 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic " 125 "netlink (%s)", dbg); 126 nl80211_handle_destroy(handle); 127 return NULL; 128 } 129 130 return handle; 131} 132 133 134static void nl_destroy_handles(struct nl_handle **handle) 135{ 136 if (*handle == NULL) 137 return; 138 nl80211_handle_destroy(*handle); 139 *handle = NULL; 140} 141 142 143#ifndef IFF_LOWER_UP 144#define IFF_LOWER_UP 0x10000 /* driver signals L1 up */ 145#endif 146#ifndef IFF_DORMANT 147#define IFF_DORMANT 0x20000 /* driver signals dormant */ 148#endif 149 150#ifndef IF_OPER_DORMANT 151#define IF_OPER_DORMANT 5 152#endif 153#ifndef IF_OPER_UP 154#define IF_OPER_UP 6 155#endif 156 157struct nl80211_global { 158 struct dl_list interfaces; 159 int if_add_ifindex; 160 u64 if_add_wdevid; 161 int if_add_wdevid_set; 162 struct netlink_data *netlink; 163 struct nl_cb *nl_cb; 164 struct nl_handle *nl; 165 int nl80211_id; 166 int ioctl_sock; /* socket for ioctl() use */ 167 168 struct nl_handle *nl_event; 169}; 170 171struct nl80211_wiphy_data { 172 struct dl_list list; 173 struct dl_list bsss; 174 struct dl_list drvs; 175 176 struct nl_handle *nl_beacons; 177 struct nl_cb *nl_cb; 178 179 int wiphy_idx; 180}; 181 182static void nl80211_global_deinit(void *priv); 183 184struct i802_bss { 185 struct wpa_driver_nl80211_data *drv; 186 struct i802_bss *next; 187 int ifindex; 188 u64 wdev_id; 189 char ifname[IFNAMSIZ + 1]; 190 char brname[IFNAMSIZ]; 191 unsigned int beacon_set:1; 192 unsigned int added_if_into_bridge:1; 193 unsigned int added_bridge:1; 194 unsigned int in_deinit:1; 195 unsigned int wdev_id_set:1; 196 197 u8 addr[ETH_ALEN]; 198 199 int freq; 200 int if_dynamic; 201 202 void *ctx; 203 struct nl_handle *nl_preq, *nl_mgmt; 204 struct nl_cb *nl_cb; 205 206 struct nl80211_wiphy_data *wiphy_data; 207 struct dl_list wiphy_list; 208}; 209 210struct wpa_driver_nl80211_data { 211 struct nl80211_global *global; 212 struct dl_list list; 213 struct dl_list wiphy_list; 214 char phyname[32]; 215 void *ctx; 216 int ifindex; 217 int if_removed; 218 int if_disabled; 219 int ignore_if_down_event; 220 struct rfkill_data *rfkill; 221 struct wpa_driver_capa capa; 222 u8 *extended_capa, *extended_capa_mask; 223 unsigned int extended_capa_len; 224 int has_capability; 225 226 int operstate; 227 228 int scan_complete_events; 229 enum scan_states { 230 NO_SCAN, SCAN_REQUESTED, SCAN_STARTED, SCAN_COMPLETED, 231 SCAN_ABORTED, SCHED_SCAN_STARTED, SCHED_SCAN_STOPPED, 232 SCHED_SCAN_RESULTS 233 } scan_state; 234 235 struct nl_cb *nl_cb; 236 237 u8 auth_bssid[ETH_ALEN]; 238 u8 auth_attempt_bssid[ETH_ALEN]; 239 u8 bssid[ETH_ALEN]; 240 u8 prev_bssid[ETH_ALEN]; 241 int associated; 242 u8 ssid[32]; 243 size_t ssid_len; 244 enum nl80211_iftype nlmode; 245 enum nl80211_iftype ap_scan_as_station; 246 unsigned int assoc_freq; 247 248 int monitor_sock; 249 int monitor_ifidx; 250 int monitor_refcount; 251 252 unsigned int disabled_11b_rates:1; 253 unsigned int pending_remain_on_chan:1; 254 unsigned int in_interface_list:1; 255 unsigned int device_ap_sme:1; 256 unsigned int poll_command_supported:1; 257 unsigned int data_tx_status:1; 258 unsigned int scan_for_auth:1; 259 unsigned int retry_auth:1; 260 unsigned int use_monitor:1; 261 unsigned int ignore_next_local_disconnect:1; 262 unsigned int allow_p2p_device:1; 263 264 u64 remain_on_chan_cookie; 265 u64 send_action_cookie; 266 267 unsigned int last_mgmt_freq; 268 269 struct wpa_driver_scan_filter *filter_ssids; 270 size_t num_filter_ssids; 271 272 struct i802_bss first_bss; 273 274 int eapol_tx_sock; 275 276#ifdef HOSTAPD 277 int eapol_sock; /* socket for EAPOL frames */ 278 279 int default_if_indices[16]; 280 int *if_indices; 281 int num_if_indices; 282 283 int last_freq; 284 int last_freq_ht; 285#endif /* HOSTAPD */ 286 287 /* From failed authentication command */ 288 int auth_freq; 289 u8 auth_bssid_[ETH_ALEN]; 290 u8 auth_ssid[32]; 291 size_t auth_ssid_len; 292 int auth_alg; 293 u8 *auth_ie; 294 size_t auth_ie_len; 295 u8 auth_wep_key[4][16]; 296 size_t auth_wep_key_len[4]; 297 int auth_wep_tx_keyidx; 298 int auth_local_state_change; 299 int auth_p2p; 300}; 301 302 303static void wpa_driver_nl80211_deinit(struct i802_bss *bss); 304static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, 305 void *timeout_ctx); 306static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 307 enum nl80211_iftype nlmode); 308static int 309wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv); 310static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 311 const u8 *addr, int cmd, u16 reason_code, 312 int local_state_change); 313static void nl80211_remove_monitor_interface( 314 struct wpa_driver_nl80211_data *drv); 315static int nl80211_send_frame_cmd(struct i802_bss *bss, 316 unsigned int freq, unsigned int wait, 317 const u8 *buf, size_t buf_len, u64 *cookie, 318 int no_cck, int no_ack, int offchanok); 319static int nl80211_register_frame(struct i802_bss *bss, 320 struct nl_handle *hl_handle, 321 u16 type, const u8 *match, size_t match_len); 322static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, 323 int report); 324#ifdef ANDROID 325static int android_pno_start(struct i802_bss *bss, 326 struct wpa_driver_scan_params *params); 327static int android_pno_stop(struct i802_bss *bss); 328#endif /* ANDROID */ 329#ifdef ANDROID_P2P 330int wpa_driver_set_p2p_noa(void *priv, u8 count, int start, int duration); 331int wpa_driver_get_p2p_noa(void *priv, u8 *buf, size_t len); 332int wpa_driver_set_p2p_ps(void *priv, int legacy_ps, int opp_ps, int ctwindow); 333int wpa_driver_set_ap_wps_p2p_ie(void *priv, const struct wpabuf *beacon, 334 const struct wpabuf *proberesp, 335 const struct wpabuf *assocresp); 336 337#endif 338#ifdef HOSTAPD 339static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 340static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 341static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 342static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 343 enum wpa_driver_if_type type, 344 const char *ifname); 345#else /* HOSTAPD */ 346static inline void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 347{ 348} 349 350static inline void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 351{ 352} 353 354static inline int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 355{ 356 return 0; 357} 358#endif /* HOSTAPD */ 359#ifdef ANDROID 360extern int wpa_driver_nl80211_driver_cmd(void *priv, char *cmd, char *buf, 361 size_t buf_len); 362#endif 363 364static int wpa_driver_nl80211_set_freq(struct i802_bss *bss, 365 struct hostapd_freq_params *freq); 366static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 367 int ifindex, int disabled); 368 369static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv); 370static int wpa_driver_nl80211_authenticate_retry( 371 struct wpa_driver_nl80211_data *drv); 372 373static int i802_set_iface_flags(struct i802_bss *bss, int up); 374 375 376static const char * nl80211_command_to_string(enum nl80211_commands cmd) 377{ 378#define C2S(x) case x: return #x; 379 switch (cmd) { 380 C2S(NL80211_CMD_UNSPEC) 381 C2S(NL80211_CMD_GET_WIPHY) 382 C2S(NL80211_CMD_SET_WIPHY) 383 C2S(NL80211_CMD_NEW_WIPHY) 384 C2S(NL80211_CMD_DEL_WIPHY) 385 C2S(NL80211_CMD_GET_INTERFACE) 386 C2S(NL80211_CMD_SET_INTERFACE) 387 C2S(NL80211_CMD_NEW_INTERFACE) 388 C2S(NL80211_CMD_DEL_INTERFACE) 389 C2S(NL80211_CMD_GET_KEY) 390 C2S(NL80211_CMD_SET_KEY) 391 C2S(NL80211_CMD_NEW_KEY) 392 C2S(NL80211_CMD_DEL_KEY) 393 C2S(NL80211_CMD_GET_BEACON) 394 C2S(NL80211_CMD_SET_BEACON) 395 C2S(NL80211_CMD_START_AP) 396 C2S(NL80211_CMD_STOP_AP) 397 C2S(NL80211_CMD_GET_STATION) 398 C2S(NL80211_CMD_SET_STATION) 399 C2S(NL80211_CMD_NEW_STATION) 400 C2S(NL80211_CMD_DEL_STATION) 401 C2S(NL80211_CMD_GET_MPATH) 402 C2S(NL80211_CMD_SET_MPATH) 403 C2S(NL80211_CMD_NEW_MPATH) 404 C2S(NL80211_CMD_DEL_MPATH) 405 C2S(NL80211_CMD_SET_BSS) 406 C2S(NL80211_CMD_SET_REG) 407 C2S(NL80211_CMD_REQ_SET_REG) 408 C2S(NL80211_CMD_GET_MESH_CONFIG) 409 C2S(NL80211_CMD_SET_MESH_CONFIG) 410 C2S(NL80211_CMD_SET_MGMT_EXTRA_IE) 411 C2S(NL80211_CMD_GET_REG) 412 C2S(NL80211_CMD_GET_SCAN) 413 C2S(NL80211_CMD_TRIGGER_SCAN) 414 C2S(NL80211_CMD_NEW_SCAN_RESULTS) 415 C2S(NL80211_CMD_SCAN_ABORTED) 416 C2S(NL80211_CMD_REG_CHANGE) 417 C2S(NL80211_CMD_AUTHENTICATE) 418 C2S(NL80211_CMD_ASSOCIATE) 419 C2S(NL80211_CMD_DEAUTHENTICATE) 420 C2S(NL80211_CMD_DISASSOCIATE) 421 C2S(NL80211_CMD_MICHAEL_MIC_FAILURE) 422 C2S(NL80211_CMD_REG_BEACON_HINT) 423 C2S(NL80211_CMD_JOIN_IBSS) 424 C2S(NL80211_CMD_LEAVE_IBSS) 425 C2S(NL80211_CMD_TESTMODE) 426 C2S(NL80211_CMD_CONNECT) 427 C2S(NL80211_CMD_ROAM) 428 C2S(NL80211_CMD_DISCONNECT) 429 C2S(NL80211_CMD_SET_WIPHY_NETNS) 430 C2S(NL80211_CMD_GET_SURVEY) 431 C2S(NL80211_CMD_NEW_SURVEY_RESULTS) 432 C2S(NL80211_CMD_SET_PMKSA) 433 C2S(NL80211_CMD_DEL_PMKSA) 434 C2S(NL80211_CMD_FLUSH_PMKSA) 435 C2S(NL80211_CMD_REMAIN_ON_CHANNEL) 436 C2S(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL) 437 C2S(NL80211_CMD_SET_TX_BITRATE_MASK) 438 C2S(NL80211_CMD_REGISTER_FRAME) 439 C2S(NL80211_CMD_FRAME) 440 C2S(NL80211_CMD_FRAME_TX_STATUS) 441 C2S(NL80211_CMD_SET_POWER_SAVE) 442 C2S(NL80211_CMD_GET_POWER_SAVE) 443 C2S(NL80211_CMD_SET_CQM) 444 C2S(NL80211_CMD_NOTIFY_CQM) 445 C2S(NL80211_CMD_SET_CHANNEL) 446 C2S(NL80211_CMD_SET_WDS_PEER) 447 C2S(NL80211_CMD_FRAME_WAIT_CANCEL) 448 C2S(NL80211_CMD_JOIN_MESH) 449 C2S(NL80211_CMD_LEAVE_MESH) 450 C2S(NL80211_CMD_UNPROT_DEAUTHENTICATE) 451 C2S(NL80211_CMD_UNPROT_DISASSOCIATE) 452 C2S(NL80211_CMD_NEW_PEER_CANDIDATE) 453 C2S(NL80211_CMD_GET_WOWLAN) 454 C2S(NL80211_CMD_SET_WOWLAN) 455 C2S(NL80211_CMD_START_SCHED_SCAN) 456 C2S(NL80211_CMD_STOP_SCHED_SCAN) 457 C2S(NL80211_CMD_SCHED_SCAN_RESULTS) 458 C2S(NL80211_CMD_SCHED_SCAN_STOPPED) 459 C2S(NL80211_CMD_SET_REKEY_OFFLOAD) 460 C2S(NL80211_CMD_PMKSA_CANDIDATE) 461 C2S(NL80211_CMD_TDLS_OPER) 462 C2S(NL80211_CMD_TDLS_MGMT) 463 C2S(NL80211_CMD_UNEXPECTED_FRAME) 464 C2S(NL80211_CMD_PROBE_CLIENT) 465 C2S(NL80211_CMD_REGISTER_BEACONS) 466 C2S(NL80211_CMD_UNEXPECTED_4ADDR_FRAME) 467 C2S(NL80211_CMD_SET_NOACK_MAP) 468 C2S(NL80211_CMD_CH_SWITCH_NOTIFY) 469 C2S(NL80211_CMD_START_P2P_DEVICE) 470 C2S(NL80211_CMD_STOP_P2P_DEVICE) 471 C2S(NL80211_CMD_CONN_FAILED) 472 C2S(NL80211_CMD_SET_MCAST_RATE) 473 C2S(NL80211_CMD_SET_MAC_ACL) 474 C2S(NL80211_CMD_RADAR_DETECT) 475 C2S(NL80211_CMD_GET_PROTOCOL_FEATURES) 476 C2S(NL80211_CMD_UPDATE_FT_IES) 477 C2S(NL80211_CMD_FT_EVENT) 478 C2S(NL80211_CMD_CRIT_PROTOCOL_START) 479 C2S(NL80211_CMD_CRIT_PROTOCOL_STOP) 480 default: 481 return "NL80211_CMD_UNKNOWN"; 482 } 483#undef C2S 484} 485 486 487static int is_ap_interface(enum nl80211_iftype nlmode) 488{ 489 return (nlmode == NL80211_IFTYPE_AP || 490 nlmode == NL80211_IFTYPE_P2P_GO); 491} 492 493 494static int is_sta_interface(enum nl80211_iftype nlmode) 495{ 496 return (nlmode == NL80211_IFTYPE_STATION || 497 nlmode == NL80211_IFTYPE_P2P_CLIENT); 498} 499 500 501static int is_p2p_net_interface(enum nl80211_iftype nlmode) 502{ 503 return (nlmode == NL80211_IFTYPE_P2P_CLIENT || 504 nlmode == NL80211_IFTYPE_P2P_GO); 505} 506 507 508static void nl80211_mark_disconnected(struct wpa_driver_nl80211_data *drv) 509{ 510 if (drv->associated) 511 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); 512 drv->associated = 0; 513 os_memset(drv->bssid, 0, ETH_ALEN); 514} 515 516 517struct nl80211_bss_info_arg { 518 struct wpa_driver_nl80211_data *drv; 519 struct wpa_scan_results *res; 520 unsigned int assoc_freq; 521 u8 assoc_bssid[ETH_ALEN]; 522}; 523 524static int bss_info_handler(struct nl_msg *msg, void *arg); 525 526 527/* nl80211 code */ 528static int ack_handler(struct nl_msg *msg, void *arg) 529{ 530 int *err = arg; 531 *err = 0; 532 return NL_STOP; 533} 534 535static int finish_handler(struct nl_msg *msg, void *arg) 536{ 537 int *ret = arg; 538 *ret = 0; 539 return NL_SKIP; 540} 541 542static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err, 543 void *arg) 544{ 545 int *ret = arg; 546 *ret = err->error; 547 return NL_SKIP; 548} 549 550 551static int no_seq_check(struct nl_msg *msg, void *arg) 552{ 553 return NL_OK; 554} 555 556 557static int send_and_recv(struct nl80211_global *global, 558 struct nl_handle *nl_handle, struct nl_msg *msg, 559 int (*valid_handler)(struct nl_msg *, void *), 560 void *valid_data) 561{ 562 struct nl_cb *cb; 563 int err = -ENOMEM; 564 565 cb = nl_cb_clone(global->nl_cb); 566 if (!cb) 567 goto out; 568 569 err = nl_send_auto_complete(nl_handle, msg); 570 if (err < 0) 571 goto out; 572 573 err = 1; 574 575 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err); 576 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err); 577 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err); 578 579 if (valid_handler) 580 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, 581 valid_handler, valid_data); 582 583 while (err > 0) 584 nl_recvmsgs(nl_handle, cb); 585 out: 586 nl_cb_put(cb); 587 nlmsg_free(msg); 588 return err; 589} 590 591 592static int send_and_recv_msgs_global(struct nl80211_global *global, 593 struct nl_msg *msg, 594 int (*valid_handler)(struct nl_msg *, void *), 595 void *valid_data) 596{ 597 return send_and_recv(global, global->nl, msg, valid_handler, 598 valid_data); 599} 600 601 602#ifndef ANDROID 603static 604#endif 605int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv, 606 struct nl_msg *msg, 607 int (*valid_handler)(struct nl_msg *, void *), 608 void *valid_data) 609{ 610 return send_and_recv(drv->global, drv->global->nl, msg, 611 valid_handler, valid_data); 612} 613 614 615struct family_data { 616 const char *group; 617 int id; 618}; 619 620 621static int nl80211_set_iface_id(struct nl_msg *msg, struct i802_bss *bss) 622{ 623 if (bss->wdev_id_set) 624 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 625 else 626 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 627 return 0; 628 629nla_put_failure: 630 return -1; 631} 632 633 634static int family_handler(struct nl_msg *msg, void *arg) 635{ 636 struct family_data *res = arg; 637 struct nlattr *tb[CTRL_ATTR_MAX + 1]; 638 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 639 struct nlattr *mcgrp; 640 int i; 641 642 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 643 genlmsg_attrlen(gnlh, 0), NULL); 644 if (!tb[CTRL_ATTR_MCAST_GROUPS]) 645 return NL_SKIP; 646 647 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) { 648 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1]; 649 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp), 650 nla_len(mcgrp), NULL); 651 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] || 652 !tb2[CTRL_ATTR_MCAST_GRP_ID] || 653 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]), 654 res->group, 655 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0) 656 continue; 657 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]); 658 break; 659 }; 660 661 return NL_SKIP; 662} 663 664 665static int nl_get_multicast_id(struct nl80211_global *global, 666 const char *family, const char *group) 667{ 668 struct nl_msg *msg; 669 int ret = -1; 670 struct family_data res = { group, -ENOENT }; 671 672 msg = nlmsg_alloc(); 673 if (!msg) 674 return -ENOMEM; 675 genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"), 676 0, 0, CTRL_CMD_GETFAMILY, 0); 677 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family); 678 679 ret = send_and_recv_msgs_global(global, msg, family_handler, &res); 680 msg = NULL; 681 if (ret == 0) 682 ret = res.id; 683 684nla_put_failure: 685 nlmsg_free(msg); 686 return ret; 687} 688 689 690static void * nl80211_cmd(struct wpa_driver_nl80211_data *drv, 691 struct nl_msg *msg, int flags, uint8_t cmd) 692{ 693 return genlmsg_put(msg, 0, 0, drv->global->nl80211_id, 694 0, flags, cmd, 0); 695} 696 697 698struct wiphy_idx_data { 699 int wiphy_idx; 700 enum nl80211_iftype nlmode; 701 u8 *macaddr; 702}; 703 704 705static int netdev_info_handler(struct nl_msg *msg, void *arg) 706{ 707 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 708 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 709 struct wiphy_idx_data *info = arg; 710 711 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 712 genlmsg_attrlen(gnlh, 0), NULL); 713 714 if (tb[NL80211_ATTR_WIPHY]) 715 info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]); 716 717 if (tb[NL80211_ATTR_IFTYPE]) 718 info->nlmode = nla_get_u32(tb[NL80211_ATTR_IFTYPE]); 719 720 if (tb[NL80211_ATTR_MAC] && info->macaddr) 721 os_memcpy(info->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 722 ETH_ALEN); 723 724 return NL_SKIP; 725} 726 727 728static int nl80211_get_wiphy_index(struct i802_bss *bss) 729{ 730 struct nl_msg *msg; 731 struct wiphy_idx_data data = { 732 .wiphy_idx = -1, 733 .macaddr = NULL, 734 }; 735 736 msg = nlmsg_alloc(); 737 if (!msg) 738 return NL80211_IFTYPE_UNSPECIFIED; 739 740 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 741 742 if (nl80211_set_iface_id(msg, bss) < 0) 743 goto nla_put_failure; 744 745 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) 746 return data.wiphy_idx; 747 msg = NULL; 748nla_put_failure: 749 nlmsg_free(msg); 750 return -1; 751} 752 753 754static enum nl80211_iftype nl80211_get_ifmode(struct i802_bss *bss) 755{ 756 struct nl_msg *msg; 757 struct wiphy_idx_data data = { 758 .nlmode = NL80211_IFTYPE_UNSPECIFIED, 759 .macaddr = NULL, 760 }; 761 762 msg = nlmsg_alloc(); 763 if (!msg) 764 return -1; 765 766 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 767 768 if (nl80211_set_iface_id(msg, bss) < 0) 769 goto nla_put_failure; 770 771 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) 772 return data.nlmode; 773 msg = NULL; 774nla_put_failure: 775 nlmsg_free(msg); 776 return NL80211_IFTYPE_UNSPECIFIED; 777} 778 779 780#ifndef HOSTAPD 781static int nl80211_get_macaddr(struct i802_bss *bss) 782{ 783 struct nl_msg *msg; 784 struct wiphy_idx_data data = { 785 .macaddr = bss->addr, 786 }; 787 788 msg = nlmsg_alloc(); 789 if (!msg) 790 return NL80211_IFTYPE_UNSPECIFIED; 791 792 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 793 if (nl80211_set_iface_id(msg, bss) < 0) 794 goto nla_put_failure; 795 796 return send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data); 797 798nla_put_failure: 799 nlmsg_free(msg); 800 return NL80211_IFTYPE_UNSPECIFIED; 801} 802#endif /* HOSTAPD */ 803 804 805static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv, 806 struct nl80211_wiphy_data *w) 807{ 808 struct nl_msg *msg; 809 int ret = -1; 810 811 msg = nlmsg_alloc(); 812 if (!msg) 813 return -1; 814 815 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS); 816 817 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx); 818 819 ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL); 820 msg = NULL; 821 if (ret) { 822 wpa_printf(MSG_DEBUG, "nl80211: Register beacons command " 823 "failed: ret=%d (%s)", 824 ret, strerror(-ret)); 825 goto nla_put_failure; 826 } 827 ret = 0; 828nla_put_failure: 829 nlmsg_free(msg); 830 return ret; 831} 832 833 834static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle) 835{ 836 struct nl80211_wiphy_data *w = eloop_ctx; 837 838 wpa_printf(MSG_EXCESSIVE, "nl80211: Beacon event message available"); 839 840 nl_recvmsgs(handle, w->nl_cb); 841} 842 843 844static int process_beacon_event(struct nl_msg *msg, void *arg) 845{ 846 struct nl80211_wiphy_data *w = arg; 847 struct wpa_driver_nl80211_data *drv; 848 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 849 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 850 union wpa_event_data event; 851 852 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 853 genlmsg_attrlen(gnlh, 0), NULL); 854 855 if (gnlh->cmd != NL80211_CMD_FRAME) { 856 wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)", 857 gnlh->cmd); 858 return NL_SKIP; 859 } 860 861 if (!tb[NL80211_ATTR_FRAME]) 862 return NL_SKIP; 863 864 dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data, 865 wiphy_list) { 866 os_memset(&event, 0, sizeof(event)); 867 event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]); 868 event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]); 869 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 870 } 871 872 return NL_SKIP; 873} 874 875 876static struct nl80211_wiphy_data * 877nl80211_get_wiphy_data_ap(struct i802_bss *bss) 878{ 879 static DEFINE_DL_LIST(nl80211_wiphys); 880 struct nl80211_wiphy_data *w; 881 int wiphy_idx, found = 0; 882 struct i802_bss *tmp_bss; 883 884 if (bss->wiphy_data != NULL) 885 return bss->wiphy_data; 886 887 wiphy_idx = nl80211_get_wiphy_index(bss); 888 889 dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) { 890 if (w->wiphy_idx == wiphy_idx) 891 goto add; 892 } 893 894 /* alloc new one */ 895 w = os_zalloc(sizeof(*w)); 896 if (w == NULL) 897 return NULL; 898 w->wiphy_idx = wiphy_idx; 899 dl_list_init(&w->bsss); 900 dl_list_init(&w->drvs); 901 902 w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 903 if (!w->nl_cb) { 904 os_free(w); 905 return NULL; 906 } 907 nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL); 908 nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_beacon_event, 909 w); 910 911 w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb, 912 "wiphy beacons"); 913 if (w->nl_beacons == NULL) { 914 os_free(w); 915 return NULL; 916 } 917 918 if (nl80211_register_beacons(bss->drv, w)) { 919 nl_destroy_handles(&w->nl_beacons); 920 os_free(w); 921 return NULL; 922 } 923 924 eloop_register_read_sock(nl_socket_get_fd(w->nl_beacons), 925 nl80211_recv_beacons, w, w->nl_beacons); 926 927 dl_list_add(&nl80211_wiphys, &w->list); 928 929add: 930 /* drv entry for this bss already there? */ 931 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { 932 if (tmp_bss->drv == bss->drv) { 933 found = 1; 934 break; 935 } 936 } 937 /* if not add it */ 938 if (!found) 939 dl_list_add(&w->drvs, &bss->drv->wiphy_list); 940 941 dl_list_add(&w->bsss, &bss->wiphy_list); 942 bss->wiphy_data = w; 943 return w; 944} 945 946 947static void nl80211_put_wiphy_data_ap(struct i802_bss *bss) 948{ 949 struct nl80211_wiphy_data *w = bss->wiphy_data; 950 struct i802_bss *tmp_bss; 951 int found = 0; 952 953 if (w == NULL) 954 return; 955 bss->wiphy_data = NULL; 956 dl_list_del(&bss->wiphy_list); 957 958 /* still any for this drv present? */ 959 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { 960 if (tmp_bss->drv == bss->drv) { 961 found = 1; 962 break; 963 } 964 } 965 /* if not remove it */ 966 if (!found) 967 dl_list_del(&bss->drv->wiphy_list); 968 969 if (!dl_list_empty(&w->bsss)) 970 return; 971 972 eloop_unregister_read_sock(nl_socket_get_fd(w->nl_beacons)); 973 974 nl_cb_put(w->nl_cb); 975 nl_destroy_handles(&w->nl_beacons); 976 dl_list_del(&w->list); 977 os_free(w); 978} 979 980 981static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid) 982{ 983 struct i802_bss *bss = priv; 984 struct wpa_driver_nl80211_data *drv = bss->drv; 985 if (!drv->associated) 986 return -1; 987 os_memcpy(bssid, drv->bssid, ETH_ALEN); 988 return 0; 989} 990 991 992static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid) 993{ 994 struct i802_bss *bss = priv; 995 struct wpa_driver_nl80211_data *drv = bss->drv; 996 if (!drv->associated) 997 return -1; 998 os_memcpy(ssid, drv->ssid, drv->ssid_len); 999 return drv->ssid_len; 1000} 1001 1002 1003static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv, 1004 char *buf, size_t len, int del) 1005{ 1006 union wpa_event_data event; 1007 1008 os_memset(&event, 0, sizeof(event)); 1009 if (len > sizeof(event.interface_status.ifname)) 1010 len = sizeof(event.interface_status.ifname) - 1; 1011 os_memcpy(event.interface_status.ifname, buf, len); 1012 event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED : 1013 EVENT_INTERFACE_ADDED; 1014 1015 wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s", 1016 del ? "DEL" : "NEW", 1017 event.interface_status.ifname, 1018 del ? "removed" : "added"); 1019 1020 if (os_strcmp(drv->first_bss.ifname, event.interface_status.ifname) == 0) { 1021 if (del) { 1022 if (drv->if_removed) { 1023 wpa_printf(MSG_DEBUG, "nl80211: if_removed " 1024 "already set - ignore event"); 1025 return; 1026 } 1027 drv->if_removed = 1; 1028 } else { 1029 if (if_nametoindex(drv->first_bss.ifname) == 0) { 1030 wpa_printf(MSG_DEBUG, "nl80211: Interface %s " 1031 "does not exist - ignore " 1032 "RTM_NEWLINK", 1033 drv->first_bss.ifname); 1034 return; 1035 } 1036 if (!drv->if_removed) { 1037 wpa_printf(MSG_DEBUG, "nl80211: if_removed " 1038 "already cleared - ignore event"); 1039 return; 1040 } 1041 drv->if_removed = 0; 1042 } 1043 } 1044 1045 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); 1046} 1047 1048 1049static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv, 1050 u8 *buf, size_t len) 1051{ 1052 int attrlen, rta_len; 1053 struct rtattr *attr; 1054 1055 attrlen = len; 1056 attr = (struct rtattr *) buf; 1057 1058 rta_len = RTA_ALIGN(sizeof(struct rtattr)); 1059 while (RTA_OK(attr, attrlen)) { 1060 if (attr->rta_type == IFLA_IFNAME) { 1061 if (os_strcmp(((char *) attr) + rta_len, drv->first_bss.ifname) 1062 == 0) 1063 return 1; 1064 else 1065 break; 1066 } 1067 attr = RTA_NEXT(attr, attrlen); 1068 } 1069 1070 return 0; 1071} 1072 1073 1074static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv, 1075 int ifindex, u8 *buf, size_t len) 1076{ 1077 if (drv->ifindex == ifindex) 1078 return 1; 1079 1080 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) { 1081 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed " 1082 "interface"); 1083 wpa_driver_nl80211_finish_drv_init(drv); 1084 return 1; 1085 } 1086 1087 return 0; 1088} 1089 1090 1091static struct wpa_driver_nl80211_data * 1092nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len) 1093{ 1094 struct wpa_driver_nl80211_data *drv; 1095 dl_list_for_each(drv, &global->interfaces, 1096 struct wpa_driver_nl80211_data, list) { 1097 if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) || 1098 have_ifidx(drv, idx)) 1099 return drv; 1100 } 1101 return NULL; 1102} 1103 1104 1105static void wpa_driver_nl80211_event_rtm_newlink(void *ctx, 1106 struct ifinfomsg *ifi, 1107 u8 *buf, size_t len) 1108{ 1109 struct nl80211_global *global = ctx; 1110 struct wpa_driver_nl80211_data *drv; 1111 int attrlen, rta_len; 1112 struct rtattr *attr; 1113 u32 brid = 0; 1114 char namebuf[IFNAMSIZ]; 1115 1116 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); 1117 if (!drv) { 1118 wpa_printf(MSG_DEBUG, "nl80211: Ignore event for foreign " 1119 "ifindex %d", ifi->ifi_index); 1120 return; 1121 } 1122 1123 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x " 1124 "(%s%s%s%s)", 1125 drv->operstate, ifi->ifi_flags, 1126 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "", 1127 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "", 1128 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "", 1129 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : ""); 1130 1131 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) { 1132 if (if_indextoname(ifi->ifi_index, namebuf) && 1133 linux_iface_up(drv->global->ioctl_sock, 1134 drv->first_bss.ifname) > 0) { 1135 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " 1136 "event since interface %s is up", namebuf); 1137 return; 1138 } 1139 wpa_printf(MSG_DEBUG, "nl80211: Interface down"); 1140 if (drv->ignore_if_down_event) { 1141 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " 1142 "event generated by mode change"); 1143 drv->ignore_if_down_event = 0; 1144 } else { 1145 drv->if_disabled = 1; 1146 wpa_supplicant_event(drv->ctx, 1147 EVENT_INTERFACE_DISABLED, NULL); 1148 } 1149 } 1150 1151 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) { 1152 if (if_indextoname(ifi->ifi_index, namebuf) && 1153 linux_iface_up(drv->global->ioctl_sock, 1154 drv->first_bss.ifname) == 0) { 1155 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1156 "event since interface %s is down", 1157 namebuf); 1158 } else if (if_nametoindex(drv->first_bss.ifname) == 0) { 1159 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1160 "event since interface %s does not exist", 1161 drv->first_bss.ifname); 1162 } else if (drv->if_removed) { 1163 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1164 "event since interface %s is marked " 1165 "removed", drv->first_bss.ifname); 1166 } else { 1167 wpa_printf(MSG_DEBUG, "nl80211: Interface up"); 1168 drv->if_disabled = 0; 1169 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED, 1170 NULL); 1171 } 1172 } 1173 1174 /* 1175 * Some drivers send the association event before the operup event--in 1176 * this case, lifting operstate in wpa_driver_nl80211_set_operstate() 1177 * fails. This will hit us when wpa_supplicant does not need to do 1178 * IEEE 802.1X authentication 1179 */ 1180 if (drv->operstate == 1 && 1181 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP && 1182 !(ifi->ifi_flags & IFF_RUNNING)) 1183 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 1184 -1, IF_OPER_UP); 1185 1186 attrlen = len; 1187 attr = (struct rtattr *) buf; 1188 rta_len = RTA_ALIGN(sizeof(struct rtattr)); 1189 while (RTA_OK(attr, attrlen)) { 1190 if (attr->rta_type == IFLA_IFNAME) { 1191 wpa_driver_nl80211_event_link( 1192 drv, 1193 ((char *) attr) + rta_len, 1194 attr->rta_len - rta_len, 0); 1195 } else if (attr->rta_type == IFLA_MASTER) 1196 brid = nla_get_u32((struct nlattr *) attr); 1197 attr = RTA_NEXT(attr, attrlen); 1198 } 1199 1200 if (ifi->ifi_family == AF_BRIDGE && brid) { 1201 /* device has been added to bridge */ 1202 if_indextoname(brid, namebuf); 1203 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s", 1204 brid, namebuf); 1205 add_ifidx(drv, brid); 1206 } 1207} 1208 1209 1210static void wpa_driver_nl80211_event_rtm_dellink(void *ctx, 1211 struct ifinfomsg *ifi, 1212 u8 *buf, size_t len) 1213{ 1214 struct nl80211_global *global = ctx; 1215 struct wpa_driver_nl80211_data *drv; 1216 int attrlen, rta_len; 1217 struct rtattr *attr; 1218 u32 brid = 0; 1219 1220 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); 1221 if (!drv) { 1222 wpa_printf(MSG_DEBUG, "nl80211: Ignore dellink event for " 1223 "foreign ifindex %d", ifi->ifi_index); 1224 return; 1225 } 1226 1227 attrlen = len; 1228 attr = (struct rtattr *) buf; 1229 1230 rta_len = RTA_ALIGN(sizeof(struct rtattr)); 1231 while (RTA_OK(attr, attrlen)) { 1232 if (attr->rta_type == IFLA_IFNAME) { 1233 wpa_driver_nl80211_event_link( 1234 drv, 1235 ((char *) attr) + rta_len, 1236 attr->rta_len - rta_len, 1); 1237 } else if (attr->rta_type == IFLA_MASTER) 1238 brid = nla_get_u32((struct nlattr *) attr); 1239 attr = RTA_NEXT(attr, attrlen); 1240 } 1241 1242 if (ifi->ifi_family == AF_BRIDGE && brid) { 1243 /* device has been removed from bridge */ 1244 char namebuf[IFNAMSIZ]; 1245 if_indextoname(brid, namebuf); 1246 wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge " 1247 "%s", brid, namebuf); 1248 del_ifidx(drv, brid); 1249 } 1250} 1251 1252 1253static void mlme_event_auth(struct wpa_driver_nl80211_data *drv, 1254 const u8 *frame, size_t len) 1255{ 1256 const struct ieee80211_mgmt *mgmt; 1257 union wpa_event_data event; 1258 1259 wpa_printf(MSG_DEBUG, "nl80211: Authenticate event"); 1260 mgmt = (const struct ieee80211_mgmt *) frame; 1261 if (len < 24 + sizeof(mgmt->u.auth)) { 1262 wpa_printf(MSG_DEBUG, "nl80211: Too short association event " 1263 "frame"); 1264 return; 1265 } 1266 1267 os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN); 1268 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 1269 os_memset(&event, 0, sizeof(event)); 1270 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN); 1271 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg); 1272 event.auth.auth_transaction = 1273 le_to_host16(mgmt->u.auth.auth_transaction); 1274 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code); 1275 if (len > 24 + sizeof(mgmt->u.auth)) { 1276 event.auth.ies = mgmt->u.auth.variable; 1277 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth); 1278 } 1279 1280 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event); 1281} 1282 1283 1284static unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv) 1285{ 1286 struct nl_msg *msg; 1287 int ret; 1288 struct nl80211_bss_info_arg arg; 1289 1290 os_memset(&arg, 0, sizeof(arg)); 1291 msg = nlmsg_alloc(); 1292 if (!msg) 1293 goto nla_put_failure; 1294 1295 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 1296 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 1297 1298 arg.drv = drv; 1299 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 1300 msg = NULL; 1301 if (ret == 0) { 1302 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the " 1303 "associated BSS from scan results: %u MHz", 1304 arg.assoc_freq); 1305 if (arg.assoc_freq) 1306 drv->assoc_freq = arg.assoc_freq; 1307 return drv->assoc_freq; 1308 } 1309 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 1310 "(%s)", ret, strerror(-ret)); 1311nla_put_failure: 1312 nlmsg_free(msg); 1313 return drv->assoc_freq; 1314} 1315 1316 1317static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv, 1318 const u8 *frame, size_t len) 1319{ 1320 const struct ieee80211_mgmt *mgmt; 1321 union wpa_event_data event; 1322 u16 status; 1323 1324 wpa_printf(MSG_DEBUG, "nl80211: Associate event"); 1325 mgmt = (const struct ieee80211_mgmt *) frame; 1326 if (len < 24 + sizeof(mgmt->u.assoc_resp)) { 1327 wpa_printf(MSG_DEBUG, "nl80211: Too short association event " 1328 "frame"); 1329 return; 1330 } 1331 1332 status = le_to_host16(mgmt->u.assoc_resp.status_code); 1333 if (status != WLAN_STATUS_SUCCESS) { 1334 os_memset(&event, 0, sizeof(event)); 1335 event.assoc_reject.bssid = mgmt->bssid; 1336 if (len > 24 + sizeof(mgmt->u.assoc_resp)) { 1337 event.assoc_reject.resp_ies = 1338 (u8 *) mgmt->u.assoc_resp.variable; 1339 event.assoc_reject.resp_ies_len = 1340 len - 24 - sizeof(mgmt->u.assoc_resp); 1341 } 1342 event.assoc_reject.status_code = status; 1343 1344 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); 1345 return; 1346 } 1347 1348 drv->associated = 1; 1349 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN); 1350 os_memcpy(drv->prev_bssid, mgmt->sa, ETH_ALEN); 1351 1352 os_memset(&event, 0, sizeof(event)); 1353 if (len > 24 + sizeof(mgmt->u.assoc_resp)) { 1354 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable; 1355 event.assoc_info.resp_ies_len = 1356 len - 24 - sizeof(mgmt->u.assoc_resp); 1357 } 1358 1359 event.assoc_info.freq = drv->assoc_freq; 1360 1361 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); 1362} 1363 1364 1365static void mlme_event_connect(struct wpa_driver_nl80211_data *drv, 1366 enum nl80211_commands cmd, struct nlattr *status, 1367 struct nlattr *addr, struct nlattr *req_ie, 1368 struct nlattr *resp_ie) 1369{ 1370 union wpa_event_data event; 1371 1372 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 1373 /* 1374 * Avoid reporting two association events that would confuse 1375 * the core code. 1376 */ 1377 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) " 1378 "when using userspace SME", cmd); 1379 return; 1380 } 1381 1382 if (cmd == NL80211_CMD_CONNECT) 1383 wpa_printf(MSG_DEBUG, "nl80211: Connect event"); 1384 else if (cmd == NL80211_CMD_ROAM) 1385 wpa_printf(MSG_DEBUG, "nl80211: Roam event"); 1386 1387 os_memset(&event, 0, sizeof(event)); 1388 if (cmd == NL80211_CMD_CONNECT && 1389 nla_get_u16(status) != WLAN_STATUS_SUCCESS) { 1390 if (addr) 1391 event.assoc_reject.bssid = nla_data(addr); 1392 if (resp_ie) { 1393 event.assoc_reject.resp_ies = nla_data(resp_ie); 1394 event.assoc_reject.resp_ies_len = nla_len(resp_ie); 1395 } 1396 event.assoc_reject.status_code = nla_get_u16(status); 1397 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); 1398 return; 1399 } 1400 1401 drv->associated = 1; 1402 if (addr) { 1403 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN); 1404 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); 1405 } 1406 1407 if (req_ie) { 1408 event.assoc_info.req_ies = nla_data(req_ie); 1409 event.assoc_info.req_ies_len = nla_len(req_ie); 1410 } 1411 if (resp_ie) { 1412 event.assoc_info.resp_ies = nla_data(resp_ie); 1413 event.assoc_info.resp_ies_len = nla_len(resp_ie); 1414 } 1415 1416 event.assoc_info.freq = nl80211_get_assoc_freq(drv); 1417 1418 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); 1419} 1420 1421 1422static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv, 1423 struct nlattr *reason, struct nlattr *addr, 1424 struct nlattr *by_ap) 1425{ 1426 union wpa_event_data data; 1427 unsigned int locally_generated = by_ap == NULL; 1428 1429 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 1430 /* 1431 * Avoid reporting two disassociation events that could 1432 * confuse the core code. 1433 */ 1434 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " 1435 "event when using userspace SME"); 1436 return; 1437 } 1438 1439 if (drv->ignore_next_local_disconnect) { 1440 drv->ignore_next_local_disconnect = 0; 1441 if (locally_generated) { 1442 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " 1443 "event triggered during reassociation"); 1444 return; 1445 } 1446 wpa_printf(MSG_WARNING, "nl80211: Was expecting local " 1447 "disconnect but got another disconnect " 1448 "event first"); 1449 } 1450 1451 wpa_printf(MSG_DEBUG, "nl80211: Disconnect event"); 1452 nl80211_mark_disconnected(drv); 1453 os_memset(&data, 0, sizeof(data)); 1454 if (reason) 1455 data.deauth_info.reason_code = nla_get_u16(reason); 1456 data.deauth_info.locally_generated = by_ap == NULL; 1457 wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, &data); 1458} 1459 1460 1461static void mlme_event_ch_switch(struct wpa_driver_nl80211_data *drv, 1462 struct nlattr *freq, struct nlattr *type) 1463{ 1464 union wpa_event_data data; 1465 int ht_enabled = 1; 1466 int chan_offset = 0; 1467 1468 wpa_printf(MSG_DEBUG, "nl80211: Channel switch event"); 1469 1470 if (!freq || !type) 1471 return; 1472 1473 switch (nla_get_u32(type)) { 1474 case NL80211_CHAN_NO_HT: 1475 ht_enabled = 0; 1476 break; 1477 case NL80211_CHAN_HT20: 1478 break; 1479 case NL80211_CHAN_HT40PLUS: 1480 chan_offset = 1; 1481 break; 1482 case NL80211_CHAN_HT40MINUS: 1483 chan_offset = -1; 1484 break; 1485 } 1486 1487 data.ch_switch.freq = nla_get_u32(freq); 1488 data.ch_switch.ht_enabled = ht_enabled; 1489 data.ch_switch.ch_offset = chan_offset; 1490 1491 wpa_supplicant_event(drv->ctx, EVENT_CH_SWITCH, &data); 1492} 1493 1494 1495static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv, 1496 enum nl80211_commands cmd, struct nlattr *addr) 1497{ 1498 union wpa_event_data event; 1499 enum wpa_event_type ev; 1500 1501 if (nla_len(addr) != ETH_ALEN) 1502 return; 1503 1504 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR, 1505 cmd, MAC2STR((u8 *) nla_data(addr))); 1506 1507 if (cmd == NL80211_CMD_AUTHENTICATE) 1508 ev = EVENT_AUTH_TIMED_OUT; 1509 else if (cmd == NL80211_CMD_ASSOCIATE) 1510 ev = EVENT_ASSOC_TIMED_OUT; 1511 else 1512 return; 1513 1514 os_memset(&event, 0, sizeof(event)); 1515 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN); 1516 wpa_supplicant_event(drv->ctx, ev, &event); 1517} 1518 1519 1520static void mlme_event_mgmt(struct wpa_driver_nl80211_data *drv, 1521 struct nlattr *freq, struct nlattr *sig, 1522 const u8 *frame, size_t len) 1523{ 1524 const struct ieee80211_mgmt *mgmt; 1525 union wpa_event_data event; 1526 u16 fc, stype; 1527 int ssi_signal = 0; 1528 int rx_freq = 0; 1529 1530 wpa_printf(MSG_MSGDUMP, "nl80211: Frame event"); 1531 mgmt = (const struct ieee80211_mgmt *) frame; 1532 if (len < 24) { 1533 wpa_printf(MSG_DEBUG, "nl80211: Too short action frame"); 1534 return; 1535 } 1536 1537 fc = le_to_host16(mgmt->frame_control); 1538 stype = WLAN_FC_GET_STYPE(fc); 1539 1540 if (sig) 1541 ssi_signal = (s32) nla_get_u32(sig); 1542 1543 os_memset(&event, 0, sizeof(event)); 1544 if (freq) { 1545 event.rx_action.freq = nla_get_u32(freq); 1546 rx_freq = drv->last_mgmt_freq = event.rx_action.freq; 1547 } 1548 wpa_printf(MSG_DEBUG, 1549 "nl80211: RX frame freq=%d ssi_signal=%d stype=%u len=%u", 1550 rx_freq, ssi_signal, stype, (unsigned int) len); 1551 if (stype == WLAN_FC_STYPE_ACTION) { 1552 event.rx_action.da = mgmt->da; 1553 event.rx_action.sa = mgmt->sa; 1554 event.rx_action.bssid = mgmt->bssid; 1555 event.rx_action.category = mgmt->u.action.category; 1556 event.rx_action.data = &mgmt->u.action.category + 1; 1557 event.rx_action.len = frame + len - event.rx_action.data; 1558 wpa_supplicant_event(drv->ctx, EVENT_RX_ACTION, &event); 1559 } else { 1560 event.rx_mgmt.frame = frame; 1561 event.rx_mgmt.frame_len = len; 1562 event.rx_mgmt.ssi_signal = ssi_signal; 1563 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 1564 } 1565} 1566 1567 1568static void mlme_event_mgmt_tx_status(struct wpa_driver_nl80211_data *drv, 1569 struct nlattr *cookie, const u8 *frame, 1570 size_t len, struct nlattr *ack) 1571{ 1572 union wpa_event_data event; 1573 const struct ieee80211_hdr *hdr; 1574 u16 fc; 1575 1576 wpa_printf(MSG_DEBUG, "nl80211: Frame TX status event"); 1577 if (!is_ap_interface(drv->nlmode)) { 1578 u64 cookie_val; 1579 1580 if (!cookie) 1581 return; 1582 1583 cookie_val = nla_get_u64(cookie); 1584 wpa_printf(MSG_DEBUG, "nl80211: Action TX status:" 1585 " cookie=0%llx%s (ack=%d)", 1586 (long long unsigned int) cookie_val, 1587 cookie_val == drv->send_action_cookie ? 1588 " (match)" : " (unknown)", ack != NULL); 1589 if (cookie_val != drv->send_action_cookie) 1590 return; 1591 } 1592 1593 hdr = (const struct ieee80211_hdr *) frame; 1594 fc = le_to_host16(hdr->frame_control); 1595 1596 os_memset(&event, 0, sizeof(event)); 1597 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 1598 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 1599 event.tx_status.dst = hdr->addr1; 1600 event.tx_status.data = frame; 1601 event.tx_status.data_len = len; 1602 event.tx_status.ack = ack != NULL; 1603 wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event); 1604} 1605 1606 1607static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv, 1608 enum wpa_event_type type, 1609 const u8 *frame, size_t len) 1610{ 1611 const struct ieee80211_mgmt *mgmt; 1612 union wpa_event_data event; 1613 const u8 *bssid = NULL; 1614 u16 reason_code = 0; 1615 1616 if (type == EVENT_DEAUTH) 1617 wpa_printf(MSG_DEBUG, "nl80211: Deauthenticate event"); 1618 else 1619 wpa_printf(MSG_DEBUG, "nl80211: Disassociate event"); 1620 1621 mgmt = (const struct ieee80211_mgmt *) frame; 1622 if (len >= 24) { 1623 bssid = mgmt->bssid; 1624 1625 if ((drv->capa.flags & WPA_DRIVER_FLAGS_SME) && 1626 !drv->associated && 1627 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0 && 1628 os_memcmp(bssid, drv->auth_attempt_bssid, ETH_ALEN) != 0 && 1629 os_memcmp(bssid, drv->prev_bssid, ETH_ALEN) == 0) { 1630 /* 1631 * Avoid issues with some roaming cases where 1632 * disconnection event for the old AP may show up after 1633 * we have started connection with the new AP. 1634 */ 1635 wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth/disassoc event from old AP " MACSTR " when already authenticating with " MACSTR, 1636 MAC2STR(bssid), 1637 MAC2STR(drv->auth_attempt_bssid)); 1638 return; 1639 } 1640 1641 if (drv->associated != 0 && 1642 os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 && 1643 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) { 1644 /* 1645 * We have presumably received this deauth as a 1646 * response to a clear_state_mismatch() outgoing 1647 * deauth. Don't let it take us offline! 1648 */ 1649 wpa_printf(MSG_DEBUG, "nl80211: Deauth received " 1650 "from Unknown BSSID " MACSTR " -- ignoring", 1651 MAC2STR(bssid)); 1652 return; 1653 } 1654 } 1655 1656 nl80211_mark_disconnected(drv); 1657 os_memset(&event, 0, sizeof(event)); 1658 1659 /* Note: Same offset for Reason Code in both frame subtypes */ 1660 if (len >= 24 + sizeof(mgmt->u.deauth)) 1661 reason_code = le_to_host16(mgmt->u.deauth.reason_code); 1662 1663 if (type == EVENT_DISASSOC) { 1664 event.disassoc_info.locally_generated = 1665 !os_memcmp(mgmt->sa, drv->first_bss.addr, ETH_ALEN); 1666 event.disassoc_info.addr = bssid; 1667 event.disassoc_info.reason_code = reason_code; 1668 if (frame + len > mgmt->u.disassoc.variable) { 1669 event.disassoc_info.ie = mgmt->u.disassoc.variable; 1670 event.disassoc_info.ie_len = frame + len - 1671 mgmt->u.disassoc.variable; 1672 } 1673 } else { 1674 event.deauth_info.locally_generated = 1675 !os_memcmp(mgmt->sa, drv->first_bss.addr, ETH_ALEN); 1676 event.deauth_info.addr = bssid; 1677 event.deauth_info.reason_code = reason_code; 1678 if (frame + len > mgmt->u.deauth.variable) { 1679 event.deauth_info.ie = mgmt->u.deauth.variable; 1680 event.deauth_info.ie_len = frame + len - 1681 mgmt->u.deauth.variable; 1682 } 1683 } 1684 1685 wpa_supplicant_event(drv->ctx, type, &event); 1686} 1687 1688 1689static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv, 1690 enum wpa_event_type type, 1691 const u8 *frame, size_t len) 1692{ 1693 const struct ieee80211_mgmt *mgmt; 1694 union wpa_event_data event; 1695 u16 reason_code = 0; 1696 1697 if (type == EVENT_UNPROT_DEAUTH) 1698 wpa_printf(MSG_DEBUG, "nl80211: Unprot Deauthenticate event"); 1699 else 1700 wpa_printf(MSG_DEBUG, "nl80211: Unprot Disassociate event"); 1701 1702 if (len < 24) 1703 return; 1704 1705 mgmt = (const struct ieee80211_mgmt *) frame; 1706 1707 os_memset(&event, 0, sizeof(event)); 1708 /* Note: Same offset for Reason Code in both frame subtypes */ 1709 if (len >= 24 + sizeof(mgmt->u.deauth)) 1710 reason_code = le_to_host16(mgmt->u.deauth.reason_code); 1711 1712 if (type == EVENT_UNPROT_DISASSOC) { 1713 event.unprot_disassoc.sa = mgmt->sa; 1714 event.unprot_disassoc.da = mgmt->da; 1715 event.unprot_disassoc.reason_code = reason_code; 1716 } else { 1717 event.unprot_deauth.sa = mgmt->sa; 1718 event.unprot_deauth.da = mgmt->da; 1719 event.unprot_deauth.reason_code = reason_code; 1720 } 1721 1722 wpa_supplicant_event(drv->ctx, type, &event); 1723} 1724 1725 1726static void mlme_event(struct i802_bss *bss, 1727 enum nl80211_commands cmd, struct nlattr *frame, 1728 struct nlattr *addr, struct nlattr *timed_out, 1729 struct nlattr *freq, struct nlattr *ack, 1730 struct nlattr *cookie, struct nlattr *sig) 1731{ 1732 struct wpa_driver_nl80211_data *drv = bss->drv; 1733 const u8 *data; 1734 size_t len; 1735 1736 if (timed_out && addr) { 1737 mlme_timeout_event(drv, cmd, addr); 1738 return; 1739 } 1740 1741 if (frame == NULL) { 1742 wpa_printf(MSG_DEBUG, 1743 "nl80211: MLME event %d (%s) without frame data", 1744 cmd, nl80211_command_to_string(cmd)); 1745 return; 1746 } 1747 1748 data = nla_data(frame); 1749 len = nla_len(frame); 1750 if (len < 4 + 2 * ETH_ALEN) { 1751 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" 1752 MACSTR ") - too short", 1753 cmd, nl80211_command_to_string(cmd), bss->ifname, 1754 MAC2STR(bss->addr)); 1755 return; 1756 } 1757 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" MACSTR 1758 ") A1=" MACSTR " A2=" MACSTR, cmd, 1759 nl80211_command_to_string(cmd), bss->ifname, 1760 MAC2STR(bss->addr), MAC2STR(data + 4), 1761 MAC2STR(data + 4 + ETH_ALEN)); 1762 if (cmd != NL80211_CMD_FRAME_TX_STATUS && !(data[4] & 0x01) && 1763 os_memcmp(bss->addr, data + 4, ETH_ALEN) != 0 && 1764 os_memcmp(bss->addr, data + 4 + ETH_ALEN, ETH_ALEN) != 0) { 1765 wpa_printf(MSG_MSGDUMP, "nl80211: %s: Ignore MLME frame event " 1766 "for foreign address", bss->ifname); 1767 return; 1768 } 1769 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame", 1770 nla_data(frame), nla_len(frame)); 1771 1772 switch (cmd) { 1773 case NL80211_CMD_AUTHENTICATE: 1774 mlme_event_auth(drv, nla_data(frame), nla_len(frame)); 1775 break; 1776 case NL80211_CMD_ASSOCIATE: 1777 mlme_event_assoc(drv, nla_data(frame), nla_len(frame)); 1778 break; 1779 case NL80211_CMD_DEAUTHENTICATE: 1780 mlme_event_deauth_disassoc(drv, EVENT_DEAUTH, 1781 nla_data(frame), nla_len(frame)); 1782 break; 1783 case NL80211_CMD_DISASSOCIATE: 1784 mlme_event_deauth_disassoc(drv, EVENT_DISASSOC, 1785 nla_data(frame), nla_len(frame)); 1786 break; 1787 case NL80211_CMD_FRAME: 1788 mlme_event_mgmt(drv, freq, sig, nla_data(frame), 1789 nla_len(frame)); 1790 break; 1791 case NL80211_CMD_FRAME_TX_STATUS: 1792 mlme_event_mgmt_tx_status(drv, cookie, nla_data(frame), 1793 nla_len(frame), ack); 1794 break; 1795 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 1796 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH, 1797 nla_data(frame), nla_len(frame)); 1798 break; 1799 case NL80211_CMD_UNPROT_DISASSOCIATE: 1800 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC, 1801 nla_data(frame), nla_len(frame)); 1802 break; 1803 default: 1804 break; 1805 } 1806} 1807 1808 1809static void mlme_event_michael_mic_failure(struct i802_bss *bss, 1810 struct nlattr *tb[]) 1811{ 1812 union wpa_event_data data; 1813 1814 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure"); 1815 os_memset(&data, 0, sizeof(data)); 1816 if (tb[NL80211_ATTR_MAC]) { 1817 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address", 1818 nla_data(tb[NL80211_ATTR_MAC]), 1819 nla_len(tb[NL80211_ATTR_MAC])); 1820 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]); 1821 } 1822 if (tb[NL80211_ATTR_KEY_SEQ]) { 1823 wpa_hexdump(MSG_DEBUG, "nl80211: TSC", 1824 nla_data(tb[NL80211_ATTR_KEY_SEQ]), 1825 nla_len(tb[NL80211_ATTR_KEY_SEQ])); 1826 } 1827 if (tb[NL80211_ATTR_KEY_TYPE]) { 1828 enum nl80211_key_type key_type = 1829 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]); 1830 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type); 1831 if (key_type == NL80211_KEYTYPE_PAIRWISE) 1832 data.michael_mic_failure.unicast = 1; 1833 } else 1834 data.michael_mic_failure.unicast = 1; 1835 1836 if (tb[NL80211_ATTR_KEY_IDX]) { 1837 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]); 1838 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id); 1839 } 1840 1841 wpa_supplicant_event(bss->ctx, EVENT_MICHAEL_MIC_FAILURE, &data); 1842} 1843 1844 1845static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv, 1846 struct nlattr *tb[]) 1847{ 1848 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_AUTH << 4); 1849 1850 if (tb[NL80211_ATTR_MAC] == NULL) { 1851 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined " 1852 "event"); 1853 return; 1854 } 1855 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 1856 1857 /* register for any AUTH message */ 1858 nl80211_register_frame(&drv->first_bss, drv->first_bss.nl_mgmt, 1859 type, NULL, 0); 1860 1861 drv->associated = 1; 1862 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined", 1863 MAC2STR(drv->bssid)); 1864 1865 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL); 1866} 1867 1868 1869static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv, 1870 int cancel_event, struct nlattr *tb[]) 1871{ 1872 unsigned int freq, chan_type, duration; 1873 union wpa_event_data data; 1874 u64 cookie; 1875 1876 if (tb[NL80211_ATTR_WIPHY_FREQ]) 1877 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); 1878 else 1879 freq = 0; 1880 1881 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) 1882 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); 1883 else 1884 chan_type = 0; 1885 1886 if (tb[NL80211_ATTR_DURATION]) 1887 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]); 1888 else 1889 duration = 0; 1890 1891 if (tb[NL80211_ATTR_COOKIE]) 1892 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 1893 else 1894 cookie = 0; 1895 1896 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d " 1897 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))", 1898 cancel_event, freq, chan_type, duration, 1899 (long long unsigned int) cookie, 1900 cookie == drv->remain_on_chan_cookie ? "match" : "unknown"); 1901 1902 if (cookie != drv->remain_on_chan_cookie) 1903 return; /* not for us */ 1904 1905 if (cancel_event) 1906 drv->pending_remain_on_chan = 0; 1907 1908 os_memset(&data, 0, sizeof(data)); 1909 data.remain_on_channel.freq = freq; 1910 data.remain_on_channel.duration = duration; 1911 wpa_supplicant_event(drv->ctx, cancel_event ? 1912 EVENT_CANCEL_REMAIN_ON_CHANNEL : 1913 EVENT_REMAIN_ON_CHANNEL, &data); 1914} 1915 1916 1917static void mlme_event_ft_event(struct wpa_driver_nl80211_data *drv, 1918 struct nlattr *tb[]) 1919{ 1920 union wpa_event_data data; 1921 1922 os_memset(&data, 0, sizeof(data)); 1923 1924 if (tb[NL80211_ATTR_IE]) { 1925 data.ft_ies.ies = nla_data(tb[NL80211_ATTR_IE]); 1926 data.ft_ies.ies_len = nla_len(tb[NL80211_ATTR_IE]); 1927 } 1928 1929 if (tb[NL80211_ATTR_IE_RIC]) { 1930 data.ft_ies.ric_ies = nla_data(tb[NL80211_ATTR_IE_RIC]); 1931 data.ft_ies.ric_ies_len = nla_len(tb[NL80211_ATTR_IE_RIC]); 1932 } 1933 1934 if (tb[NL80211_ATTR_MAC]) 1935 os_memcpy(data.ft_ies.target_ap, 1936 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 1937 1938 wpa_printf(MSG_DEBUG, "nl80211: FT event target_ap " MACSTR, 1939 MAC2STR(data.ft_ies.target_ap)); 1940 1941 wpa_supplicant_event(drv->ctx, EVENT_FT_RESPONSE, &data); 1942} 1943 1944 1945static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted, 1946 struct nlattr *tb[]) 1947{ 1948 union wpa_event_data event; 1949 struct nlattr *nl; 1950 int rem; 1951 struct scan_info *info; 1952#define MAX_REPORT_FREQS 50 1953 int freqs[MAX_REPORT_FREQS]; 1954 int num_freqs = 0; 1955 1956 if (drv->scan_for_auth) { 1957 drv->scan_for_auth = 0; 1958 wpa_printf(MSG_DEBUG, "nl80211: Scan results for missing " 1959 "cfg80211 BSS entry"); 1960 wpa_driver_nl80211_authenticate_retry(drv); 1961 return; 1962 } 1963 1964 os_memset(&event, 0, sizeof(event)); 1965 info = &event.scan_info; 1966 info->aborted = aborted; 1967 1968 if (tb[NL80211_ATTR_SCAN_SSIDS]) { 1969 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) { 1970 struct wpa_driver_scan_ssid *s = 1971 &info->ssids[info->num_ssids]; 1972 s->ssid = nla_data(nl); 1973 s->ssid_len = nla_len(nl); 1974 info->num_ssids++; 1975 if (info->num_ssids == WPAS_MAX_SCAN_SSIDS) 1976 break; 1977 } 1978 } 1979 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) { 1980 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem) 1981 { 1982 freqs[num_freqs] = nla_get_u32(nl); 1983 num_freqs++; 1984 if (num_freqs == MAX_REPORT_FREQS - 1) 1985 break; 1986 } 1987 info->freqs = freqs; 1988 info->num_freqs = num_freqs; 1989 } 1990 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event); 1991} 1992 1993 1994static int get_link_signal(struct nl_msg *msg, void *arg) 1995{ 1996 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 1997 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 1998 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1]; 1999 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = { 2000 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 }, 2001 [NL80211_STA_INFO_SIGNAL_AVG] = { .type = NLA_U8 }, 2002 }; 2003 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1]; 2004 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = { 2005 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 }, 2006 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 }, 2007 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG }, 2008 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG }, 2009 }; 2010 struct wpa_signal_info *sig_change = arg; 2011 2012 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2013 genlmsg_attrlen(gnlh, 0), NULL); 2014 if (!tb[NL80211_ATTR_STA_INFO] || 2015 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX, 2016 tb[NL80211_ATTR_STA_INFO], policy)) 2017 return NL_SKIP; 2018 if (!sinfo[NL80211_STA_INFO_SIGNAL]) 2019 return NL_SKIP; 2020 2021 sig_change->current_signal = 2022 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]); 2023 2024 if (sinfo[NL80211_STA_INFO_SIGNAL_AVG]) 2025 sig_change->avg_signal = 2026 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL_AVG]); 2027 else 2028 sig_change->avg_signal = 0; 2029 2030 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) { 2031 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX, 2032 sinfo[NL80211_STA_INFO_TX_BITRATE], 2033 rate_policy)) { 2034 sig_change->current_txrate = 0; 2035 } else { 2036 if (rinfo[NL80211_RATE_INFO_BITRATE]) { 2037 sig_change->current_txrate = 2038 nla_get_u16(rinfo[ 2039 NL80211_RATE_INFO_BITRATE]) * 100; 2040 } 2041 } 2042 } 2043 2044 return NL_SKIP; 2045} 2046 2047 2048static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv, 2049 struct wpa_signal_info *sig) 2050{ 2051 struct nl_msg *msg; 2052 2053 sig->current_signal = -9999; 2054 sig->current_txrate = 0; 2055 2056 msg = nlmsg_alloc(); 2057 if (!msg) 2058 return -ENOMEM; 2059 2060 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 2061 2062 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2063 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 2064 2065 return send_and_recv_msgs(drv, msg, get_link_signal, sig); 2066 nla_put_failure: 2067 nlmsg_free(msg); 2068 return -ENOBUFS; 2069} 2070 2071 2072static int get_link_noise(struct nl_msg *msg, void *arg) 2073{ 2074 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2075 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2076 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 2077 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 2078 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 2079 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 2080 }; 2081 struct wpa_signal_info *sig_change = arg; 2082 2083 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2084 genlmsg_attrlen(gnlh, 0), NULL); 2085 2086 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 2087 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!"); 2088 return NL_SKIP; 2089 } 2090 2091 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 2092 tb[NL80211_ATTR_SURVEY_INFO], 2093 survey_policy)) { 2094 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested " 2095 "attributes!"); 2096 return NL_SKIP; 2097 } 2098 2099 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 2100 return NL_SKIP; 2101 2102 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 2103 sig_change->frequency) 2104 return NL_SKIP; 2105 2106 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 2107 return NL_SKIP; 2108 2109 sig_change->current_noise = 2110 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 2111 2112 return NL_SKIP; 2113} 2114 2115 2116static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv, 2117 struct wpa_signal_info *sig_change) 2118{ 2119 struct nl_msg *msg; 2120 2121 sig_change->current_noise = 9999; 2122 sig_change->frequency = drv->assoc_freq; 2123 2124 msg = nlmsg_alloc(); 2125 if (!msg) 2126 return -ENOMEM; 2127 2128 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 2129 2130 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2131 2132 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change); 2133 nla_put_failure: 2134 nlmsg_free(msg); 2135 return -ENOBUFS; 2136} 2137 2138 2139static int get_noise_for_scan_results(struct nl_msg *msg, void *arg) 2140{ 2141 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2142 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2143 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 2144 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 2145 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 2146 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 2147 }; 2148 struct wpa_scan_results *scan_results = arg; 2149 struct wpa_scan_res *scan_res; 2150 size_t i; 2151 2152 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2153 genlmsg_attrlen(gnlh, 0), NULL); 2154 2155 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 2156 wpa_printf(MSG_DEBUG, "nl80211: Survey data missing"); 2157 return NL_SKIP; 2158 } 2159 2160 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 2161 tb[NL80211_ATTR_SURVEY_INFO], 2162 survey_policy)) { 2163 wpa_printf(MSG_DEBUG, "nl80211: Failed to parse nested " 2164 "attributes"); 2165 return NL_SKIP; 2166 } 2167 2168 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 2169 return NL_SKIP; 2170 2171 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 2172 return NL_SKIP; 2173 2174 for (i = 0; i < scan_results->num; ++i) { 2175 scan_res = scan_results->res[i]; 2176 if (!scan_res) 2177 continue; 2178 if ((int) nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 2179 scan_res->freq) 2180 continue; 2181 if (!(scan_res->flags & WPA_SCAN_NOISE_INVALID)) 2182 continue; 2183 scan_res->noise = (s8) 2184 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 2185 scan_res->flags &= ~WPA_SCAN_NOISE_INVALID; 2186 } 2187 2188 return NL_SKIP; 2189} 2190 2191 2192static int nl80211_get_noise_for_scan_results( 2193 struct wpa_driver_nl80211_data *drv, 2194 struct wpa_scan_results *scan_res) 2195{ 2196 struct nl_msg *msg; 2197 2198 msg = nlmsg_alloc(); 2199 if (!msg) 2200 return -ENOMEM; 2201 2202 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 2203 2204 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2205 2206 return send_and_recv_msgs(drv, msg, get_noise_for_scan_results, 2207 scan_res); 2208 nla_put_failure: 2209 nlmsg_free(msg); 2210 return -ENOBUFS; 2211} 2212 2213 2214static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv, 2215 struct nlattr *tb[]) 2216{ 2217 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = { 2218 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, 2219 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 }, 2220 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, 2221 [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 }, 2222 }; 2223 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1]; 2224 enum nl80211_cqm_rssi_threshold_event event; 2225 union wpa_event_data ed; 2226 struct wpa_signal_info sig; 2227 int res; 2228 2229 if (tb[NL80211_ATTR_CQM] == NULL || 2230 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM], 2231 cqm_policy)) { 2232 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event"); 2233 return; 2234 } 2235 2236 os_memset(&ed, 0, sizeof(ed)); 2237 2238 if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) { 2239 if (!tb[NL80211_ATTR_MAC]) 2240 return; 2241 os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]), 2242 ETH_ALEN); 2243 wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed); 2244 return; 2245 } 2246 2247 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL) 2248 return; 2249 event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]); 2250 2251 if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) { 2252 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 2253 "event: RSSI high"); 2254 ed.signal_change.above_threshold = 1; 2255 } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) { 2256 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 2257 "event: RSSI low"); 2258 ed.signal_change.above_threshold = 0; 2259 } else 2260 return; 2261 2262 res = nl80211_get_link_signal(drv, &sig); 2263 if (res == 0) { 2264 ed.signal_change.current_signal = sig.current_signal; 2265 ed.signal_change.current_txrate = sig.current_txrate; 2266 wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d", 2267 sig.current_signal, sig.current_txrate); 2268 } 2269 2270 res = nl80211_get_link_noise(drv, &sig); 2271 if (res == 0) { 2272 ed.signal_change.current_noise = sig.current_noise; 2273 wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm", 2274 sig.current_noise); 2275 } 2276 2277 wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed); 2278} 2279 2280 2281static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv, 2282 struct nlattr **tb) 2283{ 2284 u8 *addr; 2285 union wpa_event_data data; 2286 2287 if (tb[NL80211_ATTR_MAC] == NULL) 2288 return; 2289 addr = nla_data(tb[NL80211_ATTR_MAC]); 2290 wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr)); 2291 2292 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2293 u8 *ies = NULL; 2294 size_t ies_len = 0; 2295 if (tb[NL80211_ATTR_IE]) { 2296 ies = nla_data(tb[NL80211_ATTR_IE]); 2297 ies_len = nla_len(tb[NL80211_ATTR_IE]); 2298 } 2299 wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len); 2300 drv_event_assoc(drv->ctx, addr, ies, ies_len, 0); 2301 return; 2302 } 2303 2304 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2305 return; 2306 2307 os_memset(&data, 0, sizeof(data)); 2308 os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN); 2309 wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data); 2310} 2311 2312 2313static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv, 2314 struct nlattr **tb) 2315{ 2316 u8 *addr; 2317 union wpa_event_data data; 2318 2319 if (tb[NL80211_ATTR_MAC] == NULL) 2320 return; 2321 addr = nla_data(tb[NL80211_ATTR_MAC]); 2322 wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR, 2323 MAC2STR(addr)); 2324 2325 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2326 drv_event_disassoc(drv->ctx, addr); 2327 return; 2328 } 2329 2330 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2331 return; 2332 2333 os_memset(&data, 0, sizeof(data)); 2334 os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN); 2335 wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data); 2336} 2337 2338 2339static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv, 2340 struct nlattr **tb) 2341{ 2342 struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA]; 2343 static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = { 2344 [NL80211_REKEY_DATA_KEK] = { 2345 .minlen = NL80211_KEK_LEN, 2346 .maxlen = NL80211_KEK_LEN, 2347 }, 2348 [NL80211_REKEY_DATA_KCK] = { 2349 .minlen = NL80211_KCK_LEN, 2350 .maxlen = NL80211_KCK_LEN, 2351 }, 2352 [NL80211_REKEY_DATA_REPLAY_CTR] = { 2353 .minlen = NL80211_REPLAY_CTR_LEN, 2354 .maxlen = NL80211_REPLAY_CTR_LEN, 2355 }, 2356 }; 2357 union wpa_event_data data; 2358 2359 if (!tb[NL80211_ATTR_MAC]) 2360 return; 2361 if (!tb[NL80211_ATTR_REKEY_DATA]) 2362 return; 2363 if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA, 2364 tb[NL80211_ATTR_REKEY_DATA], rekey_policy)) 2365 return; 2366 if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]) 2367 return; 2368 2369 os_memset(&data, 0, sizeof(data)); 2370 data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]); 2371 wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR, 2372 MAC2STR(data.driver_gtk_rekey.bssid)); 2373 data.driver_gtk_rekey.replay_ctr = 2374 nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]); 2375 wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter", 2376 data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN); 2377 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data); 2378} 2379 2380 2381static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv, 2382 struct nlattr **tb) 2383{ 2384 struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE]; 2385 static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = { 2386 [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 }, 2387 [NL80211_PMKSA_CANDIDATE_BSSID] = { 2388 .minlen = ETH_ALEN, 2389 .maxlen = ETH_ALEN, 2390 }, 2391 [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG }, 2392 }; 2393 union wpa_event_data data; 2394 2395 wpa_printf(MSG_DEBUG, "nl80211: PMKSA candidate event"); 2396 2397 if (!tb[NL80211_ATTR_PMKSA_CANDIDATE]) 2398 return; 2399 if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE, 2400 tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy)) 2401 return; 2402 if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] || 2403 !cand[NL80211_PMKSA_CANDIDATE_BSSID]) 2404 return; 2405 2406 os_memset(&data, 0, sizeof(data)); 2407 os_memcpy(data.pmkid_candidate.bssid, 2408 nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN); 2409 data.pmkid_candidate.index = 2410 nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]); 2411 data.pmkid_candidate.preauth = 2412 cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL; 2413 wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data); 2414} 2415 2416 2417static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv, 2418 struct nlattr **tb) 2419{ 2420 union wpa_event_data data; 2421 2422 wpa_printf(MSG_DEBUG, "nl80211: Probe client event"); 2423 2424 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_ACK]) 2425 return; 2426 2427 os_memset(&data, 0, sizeof(data)); 2428 os_memcpy(data.client_poll.addr, 2429 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2430 2431 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_CLIENT_POLL_OK, &data); 2432} 2433 2434 2435static void nl80211_tdls_oper_event(struct wpa_driver_nl80211_data *drv, 2436 struct nlattr **tb) 2437{ 2438 union wpa_event_data data; 2439 2440 wpa_printf(MSG_DEBUG, "nl80211: TDLS operation event"); 2441 2442 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_TDLS_OPERATION]) 2443 return; 2444 2445 os_memset(&data, 0, sizeof(data)); 2446 os_memcpy(data.tdls.peer, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2447 switch (nla_get_u8(tb[NL80211_ATTR_TDLS_OPERATION])) { 2448 case NL80211_TDLS_SETUP: 2449 wpa_printf(MSG_DEBUG, "nl80211: TDLS setup request for peer " 2450 MACSTR, MAC2STR(data.tdls.peer)); 2451 data.tdls.oper = TDLS_REQUEST_SETUP; 2452 break; 2453 case NL80211_TDLS_TEARDOWN: 2454 wpa_printf(MSG_DEBUG, "nl80211: TDLS teardown request for peer " 2455 MACSTR, MAC2STR(data.tdls.peer)); 2456 data.tdls.oper = TDLS_REQUEST_TEARDOWN; 2457 break; 2458 default: 2459 wpa_printf(MSG_DEBUG, "nl80211: Unsupported TDLS operatione " 2460 "event"); 2461 return; 2462 } 2463 if (tb[NL80211_ATTR_REASON_CODE]) { 2464 data.tdls.reason_code = 2465 nla_get_u16(tb[NL80211_ATTR_REASON_CODE]); 2466 } 2467 2468 wpa_supplicant_event(drv->ctx, EVENT_TDLS, &data); 2469} 2470 2471 2472static void nl80211_stop_ap(struct wpa_driver_nl80211_data *drv, 2473 struct nlattr **tb) 2474{ 2475 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_UNAVAILABLE, NULL); 2476} 2477 2478 2479static void nl80211_connect_failed_event(struct wpa_driver_nl80211_data *drv, 2480 struct nlattr **tb) 2481{ 2482 union wpa_event_data data; 2483 u32 reason; 2484 2485 wpa_printf(MSG_DEBUG, "nl80211: Connect failed event"); 2486 2487 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_CONN_FAILED_REASON]) 2488 return; 2489 2490 os_memset(&data, 0, sizeof(data)); 2491 os_memcpy(data.connect_failed_reason.addr, 2492 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2493 2494 reason = nla_get_u32(tb[NL80211_ATTR_CONN_FAILED_REASON]); 2495 switch (reason) { 2496 case NL80211_CONN_FAIL_MAX_CLIENTS: 2497 wpa_printf(MSG_DEBUG, "nl80211: Max client reached"); 2498 data.connect_failed_reason.code = MAX_CLIENT_REACHED; 2499 break; 2500 case NL80211_CONN_FAIL_BLOCKED_CLIENT: 2501 wpa_printf(MSG_DEBUG, "nl80211: Blocked client " MACSTR 2502 " tried to connect", 2503 MAC2STR(data.connect_failed_reason.addr)); 2504 data.connect_failed_reason.code = BLOCKED_CLIENT; 2505 break; 2506 default: 2507 wpa_printf(MSG_DEBUG, "nl8021l: Unknown connect failed reason " 2508 "%u", reason); 2509 return; 2510 } 2511 2512 wpa_supplicant_event(drv->ctx, EVENT_CONNECT_FAILED_REASON, &data); 2513} 2514 2515 2516static void nl80211_radar_event(struct wpa_driver_nl80211_data *drv, 2517 struct nlattr **tb) 2518{ 2519 union wpa_event_data data; 2520 enum nl80211_radar_event event_type; 2521 2522 if (!tb[NL80211_ATTR_WIPHY_FREQ] || !tb[NL80211_ATTR_RADAR_EVENT]) 2523 return; 2524 2525 os_memset(&data, 0, sizeof(data)); 2526 data.dfs_event.freq = nla_get_u16(tb[NL80211_ATTR_WIPHY_FREQ]); 2527 event_type = nla_get_u8(tb[NL80211_ATTR_RADAR_EVENT]); 2528 2529 wpa_printf(MSG_DEBUG, "nl80211: DFS event on freq %d MHz", 2530 data.dfs_event.freq); 2531 2532 switch (event_type) { 2533 case NL80211_RADAR_DETECTED: 2534 wpa_supplicant_event(drv->ctx, EVENT_DFS_RADAR_DETECTED, &data); 2535 break; 2536 case NL80211_RADAR_CAC_FINISHED: 2537 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_FINISHED, &data); 2538 break; 2539 case NL80211_RADAR_CAC_ABORTED: 2540 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_ABORTED, &data); 2541 break; 2542 case NL80211_RADAR_NOP_FINISHED: 2543 wpa_supplicant_event(drv->ctx, EVENT_DFS_NOP_FINISHED, &data); 2544 break; 2545 default: 2546 wpa_printf(MSG_DEBUG, "nl80211: Unknown radar event %d " 2547 "received", event_type); 2548 break; 2549 } 2550} 2551 2552 2553static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb, 2554 int wds) 2555{ 2556 struct wpa_driver_nl80211_data *drv = bss->drv; 2557 union wpa_event_data event; 2558 2559 if (!tb[NL80211_ATTR_MAC]) 2560 return; 2561 2562 os_memset(&event, 0, sizeof(event)); 2563 event.rx_from_unknown.bssid = bss->addr; 2564 event.rx_from_unknown.addr = nla_data(tb[NL80211_ATTR_MAC]); 2565 event.rx_from_unknown.wds = wds; 2566 2567 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 2568} 2569 2570 2571static void do_process_drv_event(struct i802_bss *bss, int cmd, 2572 struct nlattr **tb) 2573{ 2574 struct wpa_driver_nl80211_data *drv = bss->drv; 2575 2576 wpa_printf(MSG_DEBUG, "nl80211: Drv Event %d (%s) received for %s", 2577 cmd, nl80211_command_to_string(cmd), bss->ifname); 2578 2579 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED && 2580 (cmd == NL80211_CMD_NEW_SCAN_RESULTS || 2581 cmd == NL80211_CMD_SCAN_ABORTED)) { 2582 wpa_driver_nl80211_set_mode(&drv->first_bss, 2583 drv->ap_scan_as_station); 2584 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 2585 } 2586 2587 switch (cmd) { 2588 case NL80211_CMD_TRIGGER_SCAN: 2589 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan trigger"); 2590 drv->scan_state = SCAN_STARTED; 2591 break; 2592 case NL80211_CMD_START_SCHED_SCAN: 2593 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan started"); 2594 drv->scan_state = SCHED_SCAN_STARTED; 2595 break; 2596 case NL80211_CMD_SCHED_SCAN_STOPPED: 2597 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan stopped"); 2598 drv->scan_state = SCHED_SCAN_STOPPED; 2599 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL); 2600 break; 2601 case NL80211_CMD_NEW_SCAN_RESULTS: 2602 wpa_dbg(drv->ctx, MSG_DEBUG, 2603 "nl80211: New scan results available"); 2604 drv->scan_state = SCAN_COMPLETED; 2605 drv->scan_complete_events = 1; 2606 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 2607 drv->ctx); 2608 send_scan_event(drv, 0, tb); 2609 break; 2610 case NL80211_CMD_SCHED_SCAN_RESULTS: 2611 wpa_dbg(drv->ctx, MSG_DEBUG, 2612 "nl80211: New sched scan results available"); 2613 drv->scan_state = SCHED_SCAN_RESULTS; 2614 send_scan_event(drv, 0, tb); 2615 break; 2616 case NL80211_CMD_SCAN_ABORTED: 2617 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan aborted"); 2618 drv->scan_state = SCAN_ABORTED; 2619 /* 2620 * Need to indicate that scan results are available in order 2621 * not to make wpa_supplicant stop its scanning. 2622 */ 2623 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 2624 drv->ctx); 2625 send_scan_event(drv, 1, tb); 2626 break; 2627 case NL80211_CMD_AUTHENTICATE: 2628 case NL80211_CMD_ASSOCIATE: 2629 case NL80211_CMD_DEAUTHENTICATE: 2630 case NL80211_CMD_DISASSOCIATE: 2631 case NL80211_CMD_FRAME_TX_STATUS: 2632 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 2633 case NL80211_CMD_UNPROT_DISASSOCIATE: 2634 mlme_event(bss, cmd, tb[NL80211_ATTR_FRAME], 2635 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 2636 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 2637 tb[NL80211_ATTR_COOKIE], 2638 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 2639 break; 2640 case NL80211_CMD_CONNECT: 2641 case NL80211_CMD_ROAM: 2642 mlme_event_connect(drv, cmd, 2643 tb[NL80211_ATTR_STATUS_CODE], 2644 tb[NL80211_ATTR_MAC], 2645 tb[NL80211_ATTR_REQ_IE], 2646 tb[NL80211_ATTR_RESP_IE]); 2647 break; 2648 case NL80211_CMD_CH_SWITCH_NOTIFY: 2649 mlme_event_ch_switch(drv, tb[NL80211_ATTR_WIPHY_FREQ], 2650 tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); 2651 break; 2652 case NL80211_CMD_DISCONNECT: 2653 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE], 2654 tb[NL80211_ATTR_MAC], 2655 tb[NL80211_ATTR_DISCONNECTED_BY_AP]); 2656 break; 2657 case NL80211_CMD_MICHAEL_MIC_FAILURE: 2658 mlme_event_michael_mic_failure(bss, tb); 2659 break; 2660 case NL80211_CMD_JOIN_IBSS: 2661 mlme_event_join_ibss(drv, tb); 2662 break; 2663 case NL80211_CMD_REMAIN_ON_CHANNEL: 2664 mlme_event_remain_on_channel(drv, 0, tb); 2665 break; 2666 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL: 2667 mlme_event_remain_on_channel(drv, 1, tb); 2668 break; 2669 case NL80211_CMD_NOTIFY_CQM: 2670 nl80211_cqm_event(drv, tb); 2671 break; 2672 case NL80211_CMD_REG_CHANGE: 2673 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change"); 2674 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 2675 NULL); 2676 break; 2677 case NL80211_CMD_REG_BEACON_HINT: 2678 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint"); 2679 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 2680 NULL); 2681 break; 2682 case NL80211_CMD_NEW_STATION: 2683 nl80211_new_station_event(drv, tb); 2684 break; 2685 case NL80211_CMD_DEL_STATION: 2686 nl80211_del_station_event(drv, tb); 2687 break; 2688 case NL80211_CMD_SET_REKEY_OFFLOAD: 2689 nl80211_rekey_offload_event(drv, tb); 2690 break; 2691 case NL80211_CMD_PMKSA_CANDIDATE: 2692 nl80211_pmksa_candidate_event(drv, tb); 2693 break; 2694 case NL80211_CMD_PROBE_CLIENT: 2695 nl80211_client_probe_event(drv, tb); 2696 break; 2697 case NL80211_CMD_TDLS_OPER: 2698 nl80211_tdls_oper_event(drv, tb); 2699 break; 2700 case NL80211_CMD_CONN_FAILED: 2701 nl80211_connect_failed_event(drv, tb); 2702 break; 2703 case NL80211_CMD_FT_EVENT: 2704 mlme_event_ft_event(drv, tb); 2705 break; 2706 case NL80211_CMD_RADAR_DETECT: 2707 nl80211_radar_event(drv, tb); 2708 break; 2709 case NL80211_CMD_STOP_AP: 2710 nl80211_stop_ap(drv, tb); 2711 break; 2712 default: 2713 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Ignored unknown event " 2714 "(cmd=%d)", cmd); 2715 break; 2716 } 2717} 2718 2719 2720static int process_drv_event(struct nl_msg *msg, void *arg) 2721{ 2722 struct wpa_driver_nl80211_data *drv = arg; 2723 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2724 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2725 struct i802_bss *bss; 2726 int ifidx = -1; 2727 2728 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2729 genlmsg_attrlen(gnlh, 0), NULL); 2730 2731 if (tb[NL80211_ATTR_IFINDEX]) { 2732 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 2733 2734 for (bss = &drv->first_bss; bss; bss = bss->next) 2735 if (ifidx == -1 || ifidx == bss->ifindex) { 2736 do_process_drv_event(bss, gnlh->cmd, tb); 2737 return NL_SKIP; 2738 } 2739 wpa_printf(MSG_DEBUG, 2740 "nl80211: Ignored event (cmd=%d) for foreign interface (ifindex %d)", 2741 gnlh->cmd, ifidx); 2742 } else if (tb[NL80211_ATTR_WDEV]) { 2743 u64 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 2744 wpa_printf(MSG_DEBUG, "nl80211: Process event on P2P device"); 2745 for (bss = &drv->first_bss; bss; bss = bss->next) { 2746 if (bss->wdev_id_set && wdev_id == bss->wdev_id) { 2747 do_process_drv_event(bss, gnlh->cmd, tb); 2748 return NL_SKIP; 2749 } 2750 } 2751 wpa_printf(MSG_DEBUG, 2752 "nl80211: Ignored event (cmd=%d) for foreign interface (wdev 0x%llx)", 2753 gnlh->cmd, (long long unsigned int) wdev_id); 2754 } 2755 2756 return NL_SKIP; 2757} 2758 2759 2760static int process_global_event(struct nl_msg *msg, void *arg) 2761{ 2762 struct nl80211_global *global = arg; 2763 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2764 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2765 struct wpa_driver_nl80211_data *drv, *tmp; 2766 int ifidx = -1; 2767 struct i802_bss *bss; 2768 u64 wdev_id = 0; 2769 int wdev_id_set = 0; 2770 2771 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2772 genlmsg_attrlen(gnlh, 0), NULL); 2773 2774 if (tb[NL80211_ATTR_IFINDEX]) 2775 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 2776 else if (tb[NL80211_ATTR_WDEV]) { 2777 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 2778 wdev_id_set = 1; 2779 } 2780 2781 dl_list_for_each_safe(drv, tmp, &global->interfaces, 2782 struct wpa_driver_nl80211_data, list) { 2783 for (bss = &drv->first_bss; bss; bss = bss->next) { 2784 if ((ifidx == -1 && !wdev_id_set) || 2785 ifidx == bss->ifindex || 2786 (wdev_id_set && bss->wdev_id_set && 2787 wdev_id == bss->wdev_id)) { 2788 do_process_drv_event(bss, gnlh->cmd, tb); 2789 return NL_SKIP; 2790 } 2791 } 2792 } 2793 2794 return NL_SKIP; 2795} 2796 2797 2798static int process_bss_event(struct nl_msg *msg, void *arg) 2799{ 2800 struct i802_bss *bss = arg; 2801 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2802 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2803 2804 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2805 genlmsg_attrlen(gnlh, 0), NULL); 2806 2807 wpa_printf(MSG_DEBUG, "nl80211: BSS Event %d (%s) received for %s", 2808 gnlh->cmd, nl80211_command_to_string(gnlh->cmd), 2809 bss->ifname); 2810 2811 switch (gnlh->cmd) { 2812 case NL80211_CMD_FRAME: 2813 case NL80211_CMD_FRAME_TX_STATUS: 2814 mlme_event(bss, gnlh->cmd, tb[NL80211_ATTR_FRAME], 2815 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 2816 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 2817 tb[NL80211_ATTR_COOKIE], 2818 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 2819 break; 2820 case NL80211_CMD_UNEXPECTED_FRAME: 2821 nl80211_spurious_frame(bss, tb, 0); 2822 break; 2823 case NL80211_CMD_UNEXPECTED_4ADDR_FRAME: 2824 nl80211_spurious_frame(bss, tb, 1); 2825 break; 2826 default: 2827 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event " 2828 "(cmd=%d)", gnlh->cmd); 2829 break; 2830 } 2831 2832 return NL_SKIP; 2833} 2834 2835 2836static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx, 2837 void *handle) 2838{ 2839 struct nl_cb *cb = eloop_ctx; 2840 2841 wpa_printf(MSG_MSGDUMP, "nl80211: Event message available"); 2842 2843 nl_recvmsgs(handle, cb); 2844} 2845 2846 2847/** 2848 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain 2849 * @priv: driver_nl80211 private data 2850 * @alpha2_arg: country to which to switch to 2851 * Returns: 0 on success, -1 on failure 2852 * 2853 * This asks nl80211 to set the regulatory domain for given 2854 * country ISO / IEC alpha2. 2855 */ 2856static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg) 2857{ 2858 struct i802_bss *bss = priv; 2859 struct wpa_driver_nl80211_data *drv = bss->drv; 2860 char alpha2[3]; 2861 struct nl_msg *msg; 2862 2863 msg = nlmsg_alloc(); 2864 if (!msg) 2865 return -ENOMEM; 2866 2867 alpha2[0] = alpha2_arg[0]; 2868 alpha2[1] = alpha2_arg[1]; 2869 alpha2[2] = '\0'; 2870 2871 nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG); 2872 2873 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2); 2874 if (send_and_recv_msgs(drv, msg, NULL, NULL)) 2875 return -EINVAL; 2876 return 0; 2877nla_put_failure: 2878 nlmsg_free(msg); 2879 return -EINVAL; 2880} 2881 2882 2883static int protocol_feature_handler(struct nl_msg *msg, void *arg) 2884{ 2885 u32 *feat = arg; 2886 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 2887 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2888 2889 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2890 genlmsg_attrlen(gnlh, 0), NULL); 2891 2892 if (tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]) 2893 *feat = nla_get_u32(tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]); 2894 2895 return NL_SKIP; 2896} 2897 2898 2899static u32 get_nl80211_protocol_features(struct wpa_driver_nl80211_data *drv) 2900{ 2901 u32 feat = 0; 2902 struct nl_msg *msg; 2903 2904 msg = nlmsg_alloc(); 2905 if (!msg) 2906 goto nla_put_failure; 2907 2908 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_PROTOCOL_FEATURES); 2909 if (send_and_recv_msgs(drv, msg, protocol_feature_handler, &feat) == 0) 2910 return feat; 2911 2912 msg = NULL; 2913nla_put_failure: 2914 nlmsg_free(msg); 2915 return 0; 2916} 2917 2918 2919struct wiphy_info_data { 2920 struct wpa_driver_nl80211_data *drv; 2921 struct wpa_driver_capa *capa; 2922 2923 unsigned int num_multichan_concurrent; 2924 2925 unsigned int error:1; 2926 unsigned int device_ap_sme:1; 2927 unsigned int poll_command_supported:1; 2928 unsigned int data_tx_status:1; 2929 unsigned int monitor_supported:1; 2930 unsigned int auth_supported:1; 2931 unsigned int connect_supported:1; 2932 unsigned int p2p_go_supported:1; 2933 unsigned int p2p_client_supported:1; 2934 unsigned int p2p_concurrent:1; 2935}; 2936 2937 2938static unsigned int probe_resp_offload_support(int supp_protocols) 2939{ 2940 unsigned int prot = 0; 2941 2942 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS) 2943 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS; 2944 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2) 2945 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2; 2946 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P) 2947 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P; 2948 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U) 2949 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING; 2950 2951 return prot; 2952} 2953 2954 2955static void wiphy_info_supported_iftypes(struct wiphy_info_data *info, 2956 struct nlattr *tb) 2957{ 2958 struct nlattr *nl_mode; 2959 int i; 2960 2961 if (tb == NULL) 2962 return; 2963 2964 nla_for_each_nested(nl_mode, tb, i) { 2965 switch (nla_type(nl_mode)) { 2966 case NL80211_IFTYPE_AP: 2967 info->capa->flags |= WPA_DRIVER_FLAGS_AP; 2968 break; 2969 case NL80211_IFTYPE_ADHOC: 2970 info->capa->flags |= WPA_DRIVER_FLAGS_IBSS; 2971 break; 2972 case NL80211_IFTYPE_P2P_DEVICE: 2973 info->capa->flags |= 2974 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 2975 break; 2976 case NL80211_IFTYPE_P2P_GO: 2977 info->p2p_go_supported = 1; 2978 break; 2979 case NL80211_IFTYPE_P2P_CLIENT: 2980 info->p2p_client_supported = 1; 2981 break; 2982 case NL80211_IFTYPE_MONITOR: 2983 info->monitor_supported = 1; 2984 break; 2985 } 2986 } 2987} 2988 2989 2990static int wiphy_info_iface_comb_process(struct wiphy_info_data *info, 2991 struct nlattr *nl_combi) 2992{ 2993 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB]; 2994 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT]; 2995 struct nlattr *nl_limit, *nl_mode; 2996 int err, rem_limit, rem_mode; 2997 int combination_has_p2p = 0, combination_has_mgd = 0; 2998 static struct nla_policy 2999 iface_combination_policy[NUM_NL80211_IFACE_COMB] = { 3000 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED }, 3001 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 }, 3002 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG }, 3003 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 }, 3004 [NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 }, 3005 }, 3006 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = { 3007 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED }, 3008 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 }, 3009 }; 3010 3011 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB, 3012 nl_combi, iface_combination_policy); 3013 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] || 3014 !tb_comb[NL80211_IFACE_COMB_MAXNUM] || 3015 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) 3016 return 0; /* broken combination */ 3017 3018 if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS]) 3019 info->capa->flags |= WPA_DRIVER_FLAGS_RADAR; 3020 3021 nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS], 3022 rem_limit) { 3023 err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT, 3024 nl_limit, iface_limit_policy); 3025 if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES]) 3026 return 0; /* broken combination */ 3027 3028 nla_for_each_nested(nl_mode, 3029 tb_limit[NL80211_IFACE_LIMIT_TYPES], 3030 rem_mode) { 3031 int ift = nla_type(nl_mode); 3032 if (ift == NL80211_IFTYPE_P2P_GO || 3033 ift == NL80211_IFTYPE_P2P_CLIENT) 3034 combination_has_p2p = 1; 3035 if (ift == NL80211_IFTYPE_STATION) 3036 combination_has_mgd = 1; 3037 } 3038 if (combination_has_p2p && combination_has_mgd) 3039 break; 3040 } 3041 3042 if (combination_has_p2p && combination_has_mgd) { 3043 info->p2p_concurrent = 1; 3044 info->num_multichan_concurrent = 3045 nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]); 3046 return 1; 3047 } 3048 3049 return 0; 3050} 3051 3052 3053static void wiphy_info_iface_comb(struct wiphy_info_data *info, 3054 struct nlattr *tb) 3055{ 3056 struct nlattr *nl_combi; 3057 int rem_combi; 3058 3059 if (tb == NULL) 3060 return; 3061 3062 nla_for_each_nested(nl_combi, tb, rem_combi) { 3063 if (wiphy_info_iface_comb_process(info, nl_combi) > 0) 3064 break; 3065 } 3066} 3067 3068 3069static void wiphy_info_supp_cmds(struct wiphy_info_data *info, 3070 struct nlattr *tb) 3071{ 3072 struct nlattr *nl_cmd; 3073 int i; 3074 3075 if (tb == NULL) 3076 return; 3077 3078 nla_for_each_nested(nl_cmd, tb, i) { 3079 switch (nla_get_u32(nl_cmd)) { 3080 case NL80211_CMD_AUTHENTICATE: 3081 info->auth_supported = 1; 3082 break; 3083 case NL80211_CMD_CONNECT: 3084 info->connect_supported = 1; 3085 break; 3086 case NL80211_CMD_START_SCHED_SCAN: 3087 info->capa->sched_scan_supported = 1; 3088 break; 3089 case NL80211_CMD_PROBE_CLIENT: 3090 info->poll_command_supported = 1; 3091 break; 3092 } 3093 } 3094} 3095 3096 3097static void wiphy_info_max_roc(struct wpa_driver_capa *capa, 3098 struct nlattr *tb) 3099{ 3100 if (tb) 3101 capa->max_remain_on_chan = nla_get_u32(tb); 3102} 3103 3104 3105static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls, 3106 struct nlattr *ext_setup) 3107{ 3108 if (tdls == NULL) 3109 return; 3110 3111 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported"); 3112 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT; 3113 3114 if (ext_setup) { 3115 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup"); 3116 capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP; 3117 } 3118} 3119 3120 3121static void wiphy_info_feature_flags(struct wiphy_info_data *info, 3122 struct nlattr *tb) 3123{ 3124 u32 flags; 3125 struct wpa_driver_capa *capa = info->capa; 3126 3127 if (tb == NULL) 3128 return; 3129 3130 flags = nla_get_u32(tb); 3131 3132 if (flags & NL80211_FEATURE_SK_TX_STATUS) 3133 info->data_tx_status = 1; 3134 3135 if (flags & NL80211_FEATURE_INACTIVITY_TIMER) 3136 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER; 3137 3138 if (flags & NL80211_FEATURE_SAE) 3139 capa->flags |= WPA_DRIVER_FLAGS_SAE; 3140 3141 if (flags & NL80211_FEATURE_NEED_OBSS_SCAN) 3142 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN; 3143} 3144 3145 3146static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa, 3147 struct nlattr *tb) 3148{ 3149 u32 protocols; 3150 3151 if (tb == NULL) 3152 return; 3153 3154 protocols = nla_get_u32(tb); 3155 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP " 3156 "mode"); 3157 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD; 3158 capa->probe_resp_offloads = probe_resp_offload_support(protocols); 3159} 3160 3161 3162static int wiphy_info_handler(struct nl_msg *msg, void *arg) 3163{ 3164 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3165 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3166 struct wiphy_info_data *info = arg; 3167 struct wpa_driver_capa *capa = info->capa; 3168 struct wpa_driver_nl80211_data *drv = info->drv; 3169 3170 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3171 genlmsg_attrlen(gnlh, 0), NULL); 3172 3173 if (tb[NL80211_ATTR_WIPHY_NAME]) 3174 os_strncpy(drv->phyname, 3175 nla_get_string(tb[NL80211_ATTR_WIPHY_NAME]), 3176 sizeof(drv->phyname)); 3177 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]) 3178 capa->max_scan_ssids = 3179 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]); 3180 3181 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]) 3182 capa->max_sched_scan_ssids = 3183 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]); 3184 3185 if (tb[NL80211_ATTR_MAX_MATCH_SETS]) 3186 capa->max_match_sets = 3187 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]); 3188 3189 if (tb[NL80211_ATTR_MAC_ACL_MAX]) 3190 capa->max_acl_mac_addrs = 3191 nla_get_u8(tb[NL80211_ATTR_MAC_ACL_MAX]); 3192 3193 wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]); 3194 wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]); 3195 wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]); 3196 3197 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) { 3198 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based " 3199 "off-channel TX"); 3200 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX; 3201 } 3202 3203 if (tb[NL80211_ATTR_ROAM_SUPPORT]) { 3204 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming"); 3205 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION; 3206 } 3207 3208 wiphy_info_max_roc(capa, 3209 tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]); 3210 3211 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD]) 3212 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD; 3213 3214 wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT], 3215 tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]); 3216 3217 if (tb[NL80211_ATTR_DEVICE_AP_SME]) 3218 info->device_ap_sme = 1; 3219 3220 wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]); 3221 wiphy_info_probe_resp_offload(capa, 3222 tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]); 3223 3224 if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] && 3225 drv->extended_capa == NULL) { 3226 drv->extended_capa = 3227 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3228 if (drv->extended_capa) { 3229 os_memcpy(drv->extended_capa, 3230 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 3231 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3232 drv->extended_capa_len = 3233 nla_len(tb[NL80211_ATTR_EXT_CAPA]); 3234 } 3235 drv->extended_capa_mask = 3236 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3237 if (drv->extended_capa_mask) { 3238 os_memcpy(drv->extended_capa_mask, 3239 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 3240 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3241 } else { 3242 os_free(drv->extended_capa); 3243 drv->extended_capa = NULL; 3244 drv->extended_capa_len = 0; 3245 } 3246 } 3247 3248 return NL_SKIP; 3249} 3250 3251 3252static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv, 3253 struct wiphy_info_data *info) 3254{ 3255 u32 feat; 3256 struct nl_msg *msg; 3257 3258 os_memset(info, 0, sizeof(*info)); 3259 info->capa = &drv->capa; 3260 info->drv = drv; 3261 3262 msg = nlmsg_alloc(); 3263 if (!msg) 3264 return -1; 3265 3266 feat = get_nl80211_protocol_features(drv); 3267 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 3268 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 3269 else 3270 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 3271 3272 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 3273 if (nl80211_set_iface_id(msg, &drv->first_bss) < 0) 3274 goto nla_put_failure; 3275 3276 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info)) 3277 return -1; 3278 3279 if (info->auth_supported) 3280 drv->capa.flags |= WPA_DRIVER_FLAGS_SME; 3281 else if (!info->connect_supported) { 3282 wpa_printf(MSG_INFO, "nl80211: Driver does not support " 3283 "authentication/association or connect commands"); 3284 info->error = 1; 3285 } 3286 3287 if (info->p2p_go_supported && info->p2p_client_supported) 3288 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE; 3289 if (info->p2p_concurrent) { 3290 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 3291 "interface (driver advertised support)"); 3292 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 3293 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 3294 } 3295 if (info->num_multichan_concurrent > 1) { 3296 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel " 3297 "concurrent (driver advertised support)"); 3298 drv->capa.num_multichan_concurrent = 3299 info->num_multichan_concurrent; 3300 } 3301 3302 /* default to 5000 since early versions of mac80211 don't set it */ 3303 if (!drv->capa.max_remain_on_chan) 3304 drv->capa.max_remain_on_chan = 5000; 3305 3306 return 0; 3307nla_put_failure: 3308 nlmsg_free(msg); 3309 return -1; 3310} 3311 3312 3313static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv) 3314{ 3315 struct wiphy_info_data info; 3316 if (wpa_driver_nl80211_get_info(drv, &info)) 3317 return -1; 3318 3319 if (info.error) 3320 return -1; 3321 3322 drv->has_capability = 1; 3323 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */ 3324 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA | 3325 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK | 3326 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 | 3327 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK; 3328 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 | 3329 WPA_DRIVER_CAPA_ENC_WEP104 | 3330 WPA_DRIVER_CAPA_ENC_TKIP | 3331 WPA_DRIVER_CAPA_ENC_CCMP; 3332 drv->capa.auth = WPA_DRIVER_AUTH_OPEN | 3333 WPA_DRIVER_AUTH_SHARED | 3334 WPA_DRIVER_AUTH_LEAP; 3335 3336 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES; 3337 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE; 3338 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3339 3340 if (!info.device_ap_sme) { 3341 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS; 3342 3343 /* 3344 * No AP SME is currently assumed to also indicate no AP MLME 3345 * in the driver/firmware. 3346 */ 3347 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME; 3348 } 3349 3350 drv->device_ap_sme = info.device_ap_sme; 3351 drv->poll_command_supported = info.poll_command_supported; 3352 drv->data_tx_status = info.data_tx_status; 3353 3354#ifdef ANDROID_P2P 3355 if(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) { 3356 /* Driver is new enough to support monitorless mode*/ 3357 wpa_printf(MSG_DEBUG, "nl80211: Driver is new " 3358 "enough to support monitor-less mode"); 3359 drv->use_monitor = 0; 3360 } 3361#else 3362 /* 3363 * If poll command and tx status are supported, mac80211 is new enough 3364 * to have everything we need to not need monitor interfaces. 3365 */ 3366 drv->use_monitor = !info.poll_command_supported || !info.data_tx_status; 3367#endif 3368 3369 if (drv->device_ap_sme && drv->use_monitor) { 3370 /* 3371 * Non-mac80211 drivers may not support monitor interface. 3372 * Make sure we do not get stuck with incorrect capability here 3373 * by explicitly testing this. 3374 */ 3375 if (!info.monitor_supported) { 3376 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor " 3377 "with device_ap_sme since no monitor mode " 3378 "support detected"); 3379 drv->use_monitor = 0; 3380 } 3381 } 3382 3383 /* 3384 * If we aren't going to use monitor interfaces, but the 3385 * driver doesn't support data TX status, we won't get TX 3386 * status for EAPOL frames. 3387 */ 3388 if (!drv->use_monitor && !info.data_tx_status) 3389 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3390 3391 return 0; 3392} 3393 3394 3395#ifdef ANDROID 3396static int android_genl_ctrl_resolve(struct nl_handle *handle, 3397 const char *name) 3398{ 3399 /* 3400 * Android ICS has very minimal genl_ctrl_resolve() implementation, so 3401 * need to work around that. 3402 */ 3403 struct nl_cache *cache = NULL; 3404 struct genl_family *nl80211 = NULL; 3405 int id = -1; 3406 3407 if (genl_ctrl_alloc_cache(handle, &cache) < 0) { 3408 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic " 3409 "netlink cache"); 3410 goto fail; 3411 } 3412 3413 nl80211 = genl_ctrl_search_by_name(cache, name); 3414 if (nl80211 == NULL) 3415 goto fail; 3416 3417 id = genl_family_get_id(nl80211); 3418 3419fail: 3420 if (nl80211) 3421 genl_family_put(nl80211); 3422 if (cache) 3423 nl_cache_free(cache); 3424 3425 return id; 3426} 3427#define genl_ctrl_resolve android_genl_ctrl_resolve 3428#endif /* ANDROID */ 3429 3430 3431static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global) 3432{ 3433 int ret; 3434 3435 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3436 if (global->nl_cb == NULL) { 3437 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " 3438 "callbacks"); 3439 return -1; 3440 } 3441 3442 global->nl = nl_create_handle(global->nl_cb, "nl"); 3443 if (global->nl == NULL) 3444 goto err; 3445 3446 global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211"); 3447 if (global->nl80211_id < 0) { 3448 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not " 3449 "found"); 3450 goto err; 3451 } 3452 3453 global->nl_event = nl_create_handle(global->nl_cb, "event"); 3454 if (global->nl_event == NULL) 3455 goto err; 3456 3457 ret = nl_get_multicast_id(global, "nl80211", "scan"); 3458 if (ret >= 0) 3459 ret = nl_socket_add_membership(global->nl_event, ret); 3460 if (ret < 0) { 3461 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 3462 "membership for scan events: %d (%s)", 3463 ret, strerror(-ret)); 3464 goto err; 3465 } 3466 3467 ret = nl_get_multicast_id(global, "nl80211", "mlme"); 3468 if (ret >= 0) 3469 ret = nl_socket_add_membership(global->nl_event, ret); 3470 if (ret < 0) { 3471 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 3472 "membership for mlme events: %d (%s)", 3473 ret, strerror(-ret)); 3474 goto err; 3475 } 3476 3477 ret = nl_get_multicast_id(global, "nl80211", "regulatory"); 3478 if (ret >= 0) 3479 ret = nl_socket_add_membership(global->nl_event, ret); 3480 if (ret < 0) { 3481 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " 3482 "membership for regulatory events: %d (%s)", 3483 ret, strerror(-ret)); 3484 /* Continue without regulatory events */ 3485 } 3486 3487 nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3488 no_seq_check, NULL); 3489 nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3490 process_global_event, global); 3491 3492 eloop_register_read_sock(nl_socket_get_fd(global->nl_event), 3493 wpa_driver_nl80211_event_receive, 3494 global->nl_cb, global->nl_event); 3495 3496 return 0; 3497 3498err: 3499 nl_destroy_handles(&global->nl_event); 3500 nl_destroy_handles(&global->nl); 3501 nl_cb_put(global->nl_cb); 3502 global->nl_cb = NULL; 3503 return -1; 3504} 3505 3506 3507static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv) 3508{ 3509 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3510 if (!drv->nl_cb) { 3511 wpa_printf(MSG_ERROR, "nl80211: Failed to alloc cb struct"); 3512 return -1; 3513 } 3514 3515 nl_cb_set(drv->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3516 no_seq_check, NULL); 3517 nl_cb_set(drv->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3518 process_drv_event, drv); 3519 3520 return 0; 3521} 3522 3523 3524static void wpa_driver_nl80211_rfkill_blocked(void *ctx) 3525{ 3526 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked"); 3527 /* 3528 * This may be for any interface; use ifdown event to disable 3529 * interface. 3530 */ 3531} 3532 3533 3534static void wpa_driver_nl80211_rfkill_unblocked(void *ctx) 3535{ 3536 struct wpa_driver_nl80211_data *drv = ctx; 3537 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked"); 3538 if (i802_set_iface_flags(&drv->first_bss, 1)) { 3539 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP " 3540 "after rfkill unblock"); 3541 return; 3542 } 3543 /* rtnetlink ifup handler will report interface as enabled */ 3544} 3545 3546 3547static void wpa_driver_nl80211_handle_eapol_tx_status(int sock, 3548 void *eloop_ctx, 3549 void *handle) 3550{ 3551 struct wpa_driver_nl80211_data *drv = eloop_ctx; 3552 u8 data[2048]; 3553 struct msghdr msg; 3554 struct iovec entry; 3555 u8 control[512]; 3556 struct cmsghdr *cmsg; 3557 int res, found_ee = 0, found_wifi = 0, acked = 0; 3558 union wpa_event_data event; 3559 3560 memset(&msg, 0, sizeof(msg)); 3561 msg.msg_iov = &entry; 3562 msg.msg_iovlen = 1; 3563 entry.iov_base = data; 3564 entry.iov_len = sizeof(data); 3565 msg.msg_control = &control; 3566 msg.msg_controllen = sizeof(control); 3567 3568 res = recvmsg(sock, &msg, MSG_ERRQUEUE); 3569 /* if error or not fitting 802.3 header, return */ 3570 if (res < 14) 3571 return; 3572 3573 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) 3574 { 3575 if (cmsg->cmsg_level == SOL_SOCKET && 3576 cmsg->cmsg_type == SCM_WIFI_STATUS) { 3577 int *ack; 3578 3579 found_wifi = 1; 3580 ack = (void *)CMSG_DATA(cmsg); 3581 acked = *ack; 3582 } 3583 3584 if (cmsg->cmsg_level == SOL_PACKET && 3585 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) { 3586 struct sock_extended_err *err = 3587 (struct sock_extended_err *)CMSG_DATA(cmsg); 3588 3589 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS) 3590 found_ee = 1; 3591 } 3592 } 3593 3594 if (!found_ee || !found_wifi) 3595 return; 3596 3597 memset(&event, 0, sizeof(event)); 3598 event.eapol_tx_status.dst = data; 3599 event.eapol_tx_status.data = data + 14; 3600 event.eapol_tx_status.data_len = res - 14; 3601 event.eapol_tx_status.ack = acked; 3602 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event); 3603} 3604 3605 3606static int nl80211_init_bss(struct i802_bss *bss) 3607{ 3608 bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3609 if (!bss->nl_cb) 3610 return -1; 3611 3612 nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3613 no_seq_check, NULL); 3614 nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3615 process_bss_event, bss); 3616 3617 return 0; 3618} 3619 3620 3621static void nl80211_destroy_bss(struct i802_bss *bss) 3622{ 3623 nl_cb_put(bss->nl_cb); 3624 bss->nl_cb = NULL; 3625} 3626 3627 3628/** 3629 * wpa_driver_nl80211_init - Initialize nl80211 driver interface 3630 * @ctx: context to be used when calling wpa_supplicant functions, 3631 * e.g., wpa_supplicant_event() 3632 * @ifname: interface name, e.g., wlan0 3633 * @global_priv: private driver global data from global_init() 3634 * Returns: Pointer to private data, %NULL on failure 3635 */ 3636static void * wpa_driver_nl80211_init(void *ctx, const char *ifname, 3637 void *global_priv) 3638{ 3639 struct wpa_driver_nl80211_data *drv; 3640 struct rfkill_config *rcfg; 3641 struct i802_bss *bss; 3642 3643 if (global_priv == NULL) 3644 return NULL; 3645 drv = os_zalloc(sizeof(*drv)); 3646 if (drv == NULL) 3647 return NULL; 3648 drv->global = global_priv; 3649 drv->ctx = ctx; 3650 bss = &drv->first_bss; 3651 bss->drv = drv; 3652 bss->ctx = ctx; 3653 3654 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname)); 3655 drv->monitor_ifidx = -1; 3656 drv->monitor_sock = -1; 3657 drv->eapol_tx_sock = -1; 3658 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 3659 3660 if (wpa_driver_nl80211_init_nl(drv)) { 3661 os_free(drv); 3662 return NULL; 3663 } 3664 3665 if (nl80211_init_bss(bss)) 3666 goto failed; 3667 3668 rcfg = os_zalloc(sizeof(*rcfg)); 3669 if (rcfg == NULL) 3670 goto failed; 3671 rcfg->ctx = drv; 3672 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname)); 3673 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked; 3674 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked; 3675 drv->rfkill = rfkill_init(rcfg); 3676 if (drv->rfkill == NULL) { 3677 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available"); 3678 os_free(rcfg); 3679 } 3680 3681 if (wpa_driver_nl80211_finish_drv_init(drv)) 3682 goto failed; 3683 3684 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0); 3685 if (drv->eapol_tx_sock < 0) 3686 goto failed; 3687 3688 if (drv->data_tx_status) { 3689 int enabled = 1; 3690 3691 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS, 3692 &enabled, sizeof(enabled)) < 0) { 3693 wpa_printf(MSG_DEBUG, 3694 "nl80211: wifi status sockopt failed\n"); 3695 drv->data_tx_status = 0; 3696 if (!drv->use_monitor) 3697 drv->capa.flags &= 3698 ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3699 } else { 3700 eloop_register_read_sock(drv->eapol_tx_sock, 3701 wpa_driver_nl80211_handle_eapol_tx_status, 3702 drv, NULL); 3703 } 3704 } 3705 3706 if (drv->global) { 3707 dl_list_add(&drv->global->interfaces, &drv->list); 3708 drv->in_interface_list = 1; 3709 } 3710 3711 return bss; 3712 3713failed: 3714 wpa_driver_nl80211_deinit(bss); 3715 return NULL; 3716} 3717 3718 3719static int nl80211_register_frame(struct i802_bss *bss, 3720 struct nl_handle *nl_handle, 3721 u16 type, const u8 *match, size_t match_len) 3722{ 3723 struct wpa_driver_nl80211_data *drv = bss->drv; 3724 struct nl_msg *msg; 3725 int ret = -1; 3726 3727 msg = nlmsg_alloc(); 3728 if (!msg) 3729 return -1; 3730 3731 wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x nl_handle=%p", 3732 type, nl_handle); 3733 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", 3734 match, match_len); 3735 3736 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION); 3737 3738 if (nl80211_set_iface_id(msg, bss) < 0) 3739 goto nla_put_failure; 3740 3741 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type); 3742 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match); 3743 3744 ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL); 3745 msg = NULL; 3746 if (ret) { 3747 wpa_printf(MSG_DEBUG, "nl80211: Register frame command " 3748 "failed (type=%u): ret=%d (%s)", 3749 type, ret, strerror(-ret)); 3750 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", 3751 match, match_len); 3752 goto nla_put_failure; 3753 } 3754 ret = 0; 3755nla_put_failure: 3756 nlmsg_free(msg); 3757 return ret; 3758} 3759 3760 3761static int nl80211_alloc_mgmt_handle(struct i802_bss *bss) 3762{ 3763 struct wpa_driver_nl80211_data *drv = bss->drv; 3764 3765 if (bss->nl_mgmt) { 3766 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting " 3767 "already on! (nl_mgmt=%p)", bss->nl_mgmt); 3768 return -1; 3769 } 3770 3771 bss->nl_mgmt = nl_create_handle(drv->nl_cb, "mgmt"); 3772 if (bss->nl_mgmt == NULL) 3773 return -1; 3774 3775 eloop_register_read_sock(nl_socket_get_fd(bss->nl_mgmt), 3776 wpa_driver_nl80211_event_receive, bss->nl_cb, 3777 bss->nl_mgmt); 3778 3779 return 0; 3780} 3781 3782 3783static int nl80211_register_action_frame(struct i802_bss *bss, 3784 const u8 *match, size_t match_len) 3785{ 3786 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4); 3787 return nl80211_register_frame(bss, bss->nl_mgmt, 3788 type, match, match_len); 3789} 3790 3791 3792static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss) 3793{ 3794 struct wpa_driver_nl80211_data *drv = bss->drv; 3795 3796 if (nl80211_alloc_mgmt_handle(bss)) 3797 return -1; 3798 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP " 3799 "handle %p", bss->nl_mgmt); 3800 3801#if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING) 3802 /* GAS Initial Request */ 3803 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0) 3804 return -1; 3805 /* GAS Initial Response */ 3806 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0) 3807 return -1; 3808 /* GAS Comeback Request */ 3809 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0) 3810 return -1; 3811 /* GAS Comeback Response */ 3812 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0) 3813 return -1; 3814#endif /* CONFIG_P2P || CONFIG_INTERWORKING */ 3815#ifdef CONFIG_P2P 3816 /* P2P Public Action */ 3817 if (nl80211_register_action_frame(bss, 3818 (u8 *) "\x04\x09\x50\x6f\x9a\x09", 3819 6) < 0) 3820 return -1; 3821 /* P2P Action */ 3822 if (nl80211_register_action_frame(bss, 3823 (u8 *) "\x7f\x50\x6f\x9a\x09", 3824 5) < 0) 3825 return -1; 3826#endif /* CONFIG_P2P */ 3827#ifdef CONFIG_IEEE80211W 3828 /* SA Query Response */ 3829 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0) 3830 return -1; 3831#endif /* CONFIG_IEEE80211W */ 3832#ifdef CONFIG_TDLS 3833 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) { 3834 /* TDLS Discovery Response */ 3835 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) < 3836 0) 3837 return -1; 3838 } 3839#endif /* CONFIG_TDLS */ 3840 3841 /* FT Action frames */ 3842 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0) 3843 return -1; 3844 else 3845 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT | 3846 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK; 3847 3848 /* WNM - BSS Transition Management Request */ 3849 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0) 3850 return -1; 3851 /* WNM-Sleep Mode Response */ 3852 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x11", 2) < 0) 3853 return -1; 3854 3855 return 0; 3856} 3857 3858 3859static int nl80211_register_spurious_class3(struct i802_bss *bss) 3860{ 3861 struct wpa_driver_nl80211_data *drv = bss->drv; 3862 struct nl_msg *msg; 3863 int ret = -1; 3864 3865 msg = nlmsg_alloc(); 3866 if (!msg) 3867 return -1; 3868 3869 nl80211_cmd(drv, msg, 0, NL80211_CMD_UNEXPECTED_FRAME); 3870 3871 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 3872 3873 ret = send_and_recv(drv->global, bss->nl_mgmt, msg, NULL, NULL); 3874 msg = NULL; 3875 if (ret) { 3876 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 " 3877 "failed: ret=%d (%s)", 3878 ret, strerror(-ret)); 3879 goto nla_put_failure; 3880 } 3881 ret = 0; 3882nla_put_failure: 3883 nlmsg_free(msg); 3884 return ret; 3885} 3886 3887 3888static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss) 3889{ 3890 static const int stypes[] = { 3891 WLAN_FC_STYPE_AUTH, 3892 WLAN_FC_STYPE_ASSOC_REQ, 3893 WLAN_FC_STYPE_REASSOC_REQ, 3894 WLAN_FC_STYPE_DISASSOC, 3895 WLAN_FC_STYPE_DEAUTH, 3896 WLAN_FC_STYPE_ACTION, 3897 WLAN_FC_STYPE_PROBE_REQ, 3898/* Beacon doesn't work as mac80211 doesn't currently allow 3899 * it, but it wouldn't really be the right thing anyway as 3900 * it isn't per interface ... maybe just dump the scan 3901 * results periodically for OLBC? 3902 */ 3903// WLAN_FC_STYPE_BEACON, 3904 }; 3905 unsigned int i; 3906 3907 if (nl80211_alloc_mgmt_handle(bss)) 3908 return -1; 3909 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 3910 "handle %p", bss->nl_mgmt); 3911 3912 for (i = 0; i < sizeof(stypes) / sizeof(stypes[0]); i++) { 3913 if (nl80211_register_frame(bss, bss->nl_mgmt, 3914 (WLAN_FC_TYPE_MGMT << 2) | 3915 (stypes[i] << 4), 3916 NULL, 0) < 0) { 3917 goto out_err; 3918 } 3919 } 3920 3921 if (nl80211_register_spurious_class3(bss)) 3922 goto out_err; 3923 3924 if (nl80211_get_wiphy_data_ap(bss) == NULL) 3925 goto out_err; 3926 3927 return 0; 3928 3929out_err: 3930 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt)); 3931 nl_destroy_handles(&bss->nl_mgmt); 3932 return -1; 3933} 3934 3935 3936static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss) 3937{ 3938 if (nl80211_alloc_mgmt_handle(bss)) 3939 return -1; 3940 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 3941 "handle %p (device SME)", bss->nl_mgmt); 3942 3943 if (nl80211_register_frame(bss, bss->nl_mgmt, 3944 (WLAN_FC_TYPE_MGMT << 2) | 3945 (WLAN_FC_STYPE_ACTION << 4), 3946 NULL, 0) < 0) 3947 goto out_err; 3948 3949 return 0; 3950 3951out_err: 3952 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt)); 3953 nl_destroy_handles(&bss->nl_mgmt); 3954 return -1; 3955} 3956 3957 3958static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason) 3959{ 3960 if (bss->nl_mgmt == NULL) 3961 return; 3962 wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p " 3963 "(%s)", bss->nl_mgmt, reason); 3964 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt)); 3965 nl_destroy_handles(&bss->nl_mgmt); 3966 3967 nl80211_put_wiphy_data_ap(bss); 3968} 3969 3970 3971static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx) 3972{ 3973 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL); 3974} 3975 3976 3977static void nl80211_del_p2pdev(struct i802_bss *bss) 3978{ 3979 struct wpa_driver_nl80211_data *drv = bss->drv; 3980 struct nl_msg *msg; 3981 int ret; 3982 3983 msg = nlmsg_alloc(); 3984 if (!msg) 3985 return; 3986 3987 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 3988 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 3989 3990 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 3991 msg = NULL; 3992 3993 wpa_printf(MSG_DEBUG, "nl80211: Delete P2P Device %s (0x%llx): %s", 3994 bss->ifname, (long long unsigned int) bss->wdev_id, 3995 strerror(ret)); 3996 3997nla_put_failure: 3998 nlmsg_free(msg); 3999} 4000 4001 4002static int nl80211_set_p2pdev(struct i802_bss *bss, int start) 4003{ 4004 struct wpa_driver_nl80211_data *drv = bss->drv; 4005 struct nl_msg *msg; 4006 int ret = -1; 4007 4008 msg = nlmsg_alloc(); 4009 if (!msg) 4010 return -1; 4011 4012 if (start) 4013 nl80211_cmd(drv, msg, 0, NL80211_CMD_START_P2P_DEVICE); 4014 else 4015 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_P2P_DEVICE); 4016 4017 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 4018 4019 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4020 msg = NULL; 4021 4022 wpa_printf(MSG_DEBUG, "nl80211: %s P2P Device %s (0x%llx): %s", 4023 start ? "Start" : "Stop", 4024 bss->ifname, (long long unsigned int) bss->wdev_id, 4025 strerror(ret)); 4026 4027nla_put_failure: 4028 nlmsg_free(msg); 4029 return ret; 4030} 4031 4032 4033static int i802_set_iface_flags(struct i802_bss *bss, int up) 4034{ 4035 enum nl80211_iftype nlmode; 4036 4037 nlmode = nl80211_get_ifmode(bss); 4038 if (nlmode != NL80211_IFTYPE_P2P_DEVICE) { 4039 return linux_set_iface_flags(bss->drv->global->ioctl_sock, 4040 bss->ifname, up); 4041 } 4042 4043 /* P2P Device has start/stop which is equivalent */ 4044 return nl80211_set_p2pdev(bss, up); 4045} 4046 4047 4048static int 4049wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv) 4050{ 4051#ifndef HOSTAPD 4052 enum nl80211_iftype nlmode = NL80211_IFTYPE_STATION; 4053#endif /* HOSTAPD */ 4054 struct i802_bss *bss = &drv->first_bss; 4055 int send_rfkill_event = 0; 4056 4057 drv->ifindex = if_nametoindex(bss->ifname); 4058 bss->ifindex = drv->ifindex; 4059 bss->wdev_id = drv->global->if_add_wdevid; 4060 bss->wdev_id_set = drv->global->if_add_wdevid_set; 4061 4062 bss->if_dynamic = drv->ifindex == drv->global->if_add_ifindex; 4063 bss->if_dynamic = bss->if_dynamic || drv->global->if_add_wdevid_set; 4064 drv->global->if_add_wdevid_set = 0; 4065 4066 if (wpa_driver_nl80211_capa(drv)) 4067 return -1; 4068 4069 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s", 4070 bss->ifname, drv->phyname); 4071 4072#ifndef HOSTAPD 4073 if (bss->if_dynamic) 4074 nlmode = nl80211_get_ifmode(bss); 4075 4076 /* 4077 * Make sure the interface starts up in station mode unless this is a 4078 * dynamically added interface (e.g., P2P) that was already configured 4079 * with proper iftype. 4080 */ 4081 if (wpa_driver_nl80211_set_mode(bss, nlmode) < 0) { 4082 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver to use managed mode"); 4083 return -1; 4084 } 4085 drv->nlmode = nlmode; 4086 4087 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { 4088 int ret = nl80211_set_p2pdev(bss, 1); 4089 if (ret < 0) 4090 wpa_printf(MSG_ERROR, "nl80211: Could not start P2P device"); 4091 nl80211_get_macaddr(bss); 4092 return ret; 4093 } 4094 4095 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) { 4096 if (rfkill_is_blocked(drv->rfkill)) { 4097 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable " 4098 "interface '%s' due to rfkill", 4099 bss->ifname); 4100 drv->if_disabled = 1; 4101 send_rfkill_event = 1; 4102 } else { 4103 wpa_printf(MSG_ERROR, "nl80211: Could not set " 4104 "interface '%s' UP", bss->ifname); 4105 return -1; 4106 } 4107 } 4108 4109 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 4110 1, IF_OPER_DORMANT); 4111#endif /* HOSTAPD */ 4112 4113 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 4114 bss->addr)) 4115 return -1; 4116 4117 if (send_rfkill_event) { 4118 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill, 4119 drv, drv->ctx); 4120 } 4121 4122 return 0; 4123} 4124 4125 4126static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv) 4127{ 4128 struct nl_msg *msg; 4129 4130 msg = nlmsg_alloc(); 4131 if (!msg) 4132 return -ENOMEM; 4133 4134 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON); 4135 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4136 4137 return send_and_recv_msgs(drv, msg, NULL, NULL); 4138 nla_put_failure: 4139 nlmsg_free(msg); 4140 return -ENOBUFS; 4141} 4142 4143 4144/** 4145 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface 4146 * @bss: Pointer to private nl80211 data from wpa_driver_nl80211_init() 4147 * 4148 * Shut down driver interface and processing of driver events. Free 4149 * private data buffer if one was allocated in wpa_driver_nl80211_init(). 4150 */ 4151static void wpa_driver_nl80211_deinit(struct i802_bss *bss) 4152{ 4153 struct wpa_driver_nl80211_data *drv = bss->drv; 4154 4155 bss->in_deinit = 1; 4156 if (drv->data_tx_status) 4157 eloop_unregister_read_sock(drv->eapol_tx_sock); 4158 if (drv->eapol_tx_sock >= 0) 4159 close(drv->eapol_tx_sock); 4160 4161 if (bss->nl_preq) 4162 wpa_driver_nl80211_probe_req_report(bss, 0); 4163 if (bss->added_if_into_bridge) { 4164 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 4165 bss->ifname) < 0) 4166 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 4167 "interface %s from bridge %s: %s", 4168 bss->ifname, bss->brname, strerror(errno)); 4169 } 4170 if (bss->added_bridge) { 4171 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 4172 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 4173 "bridge %s: %s", 4174 bss->brname, strerror(errno)); 4175 } 4176 4177 nl80211_remove_monitor_interface(drv); 4178 4179 if (is_ap_interface(drv->nlmode)) 4180 wpa_driver_nl80211_del_beacon(drv); 4181 4182#ifdef HOSTAPD 4183 if (drv->last_freq_ht) { 4184 /* Clear HT flags from the driver */ 4185 struct hostapd_freq_params freq; 4186 os_memset(&freq, 0, sizeof(freq)); 4187 freq.freq = drv->last_freq; 4188 wpa_driver_nl80211_set_freq(bss, &freq); 4189 } 4190 4191 if (drv->eapol_sock >= 0) { 4192 eloop_unregister_read_sock(drv->eapol_sock); 4193 close(drv->eapol_sock); 4194 } 4195 4196 if (drv->if_indices != drv->default_if_indices) 4197 os_free(drv->if_indices); 4198#endif /* HOSTAPD */ 4199 4200 if (drv->disabled_11b_rates) 4201 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 4202 4203 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0, 4204 IF_OPER_UP); 4205 rfkill_deinit(drv->rfkill); 4206 4207 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 4208 4209 (void) i802_set_iface_flags(bss, 0); 4210 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) { 4211 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION); 4212 nl80211_mgmt_unsubscribe(bss, "deinit"); 4213 } else { 4214 nl80211_mgmt_unsubscribe(bss, "deinit"); 4215 nl80211_del_p2pdev(bss); 4216 } 4217 nl_cb_put(drv->nl_cb); 4218 4219 nl80211_destroy_bss(&drv->first_bss); 4220 4221 os_free(drv->filter_ssids); 4222 4223 os_free(drv->auth_ie); 4224 4225 if (drv->in_interface_list) 4226 dl_list_del(&drv->list); 4227 4228 os_free(drv->extended_capa); 4229 os_free(drv->extended_capa_mask); 4230 os_free(drv); 4231} 4232 4233 4234/** 4235 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion 4236 * @eloop_ctx: Driver private data 4237 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init() 4238 * 4239 * This function can be used as registered timeout when starting a scan to 4240 * generate a scan completed event if the driver does not report this. 4241 */ 4242static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx) 4243{ 4244 struct wpa_driver_nl80211_data *drv = eloop_ctx; 4245 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) { 4246 wpa_driver_nl80211_set_mode(&drv->first_bss, 4247 drv->ap_scan_as_station); 4248 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 4249 } 4250 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results"); 4251 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL); 4252} 4253 4254 4255static struct nl_msg * 4256nl80211_scan_common(struct wpa_driver_nl80211_data *drv, u8 cmd, 4257 struct wpa_driver_scan_params *params, u64 *wdev_id) 4258{ 4259 struct nl_msg *msg; 4260 size_t i; 4261 4262 msg = nlmsg_alloc(); 4263 if (!msg) 4264 return NULL; 4265 4266 nl80211_cmd(drv, msg, 0, cmd); 4267 4268 if (!wdev_id) 4269 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4270 else 4271 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, *wdev_id); 4272 4273 if (params->num_ssids) { 4274 struct nlattr *ssids; 4275 4276 ssids = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); 4277 if (ssids == NULL) 4278 goto fail; 4279 for (i = 0; i < params->num_ssids; i++) { 4280 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID", 4281 params->ssids[i].ssid, 4282 params->ssids[i].ssid_len); 4283 if (nla_put(msg, i + 1, params->ssids[i].ssid_len, 4284 params->ssids[i].ssid) < 0) 4285 goto fail; 4286 } 4287 nla_nest_end(msg, ssids); 4288 } 4289 4290 if (params->extra_ies) { 4291 wpa_hexdump(MSG_MSGDUMP, "nl80211: Scan extra IEs", 4292 params->extra_ies, params->extra_ies_len); 4293 if (nla_put(msg, NL80211_ATTR_IE, params->extra_ies_len, 4294 params->extra_ies) < 0) 4295 goto fail; 4296 } 4297 4298 if (params->freqs) { 4299 struct nlattr *freqs; 4300 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); 4301 if (freqs == NULL) 4302 goto fail; 4303 for (i = 0; params->freqs[i]; i++) { 4304 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u " 4305 "MHz", params->freqs[i]); 4306 if (nla_put_u32(msg, i + 1, params->freqs[i]) < 0) 4307 goto fail; 4308 } 4309 nla_nest_end(msg, freqs); 4310 } 4311 4312 os_free(drv->filter_ssids); 4313 drv->filter_ssids = params->filter_ssids; 4314 params->filter_ssids = NULL; 4315 drv->num_filter_ssids = params->num_filter_ssids; 4316 4317 return msg; 4318 4319fail: 4320nla_put_failure: 4321 nlmsg_free(msg); 4322 return NULL; 4323} 4324 4325 4326/** 4327 * wpa_driver_nl80211_scan - Request the driver to initiate scan 4328 * @bss: Pointer to private driver data from wpa_driver_nl80211_init() 4329 * @params: Scan parameters 4330 * Returns: 0 on success, -1 on failure 4331 */ 4332static int wpa_driver_nl80211_scan(struct i802_bss *bss, 4333 struct wpa_driver_scan_params *params) 4334{ 4335 struct wpa_driver_nl80211_data *drv = bss->drv; 4336 int ret = -1, timeout; 4337 struct nl_msg *msg = NULL; 4338 4339 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: scan request"); 4340 drv->scan_for_auth = 0; 4341 4342 msg = nl80211_scan_common(drv, NL80211_CMD_TRIGGER_SCAN, params, 4343 bss->wdev_id_set ? &bss->wdev_id : NULL); 4344 if (!msg) 4345 return -1; 4346 4347 if (params->p2p_probe) { 4348 struct nlattr *rates; 4349 4350 wpa_printf(MSG_DEBUG, "nl80211: P2P probe - mask SuppRates"); 4351 4352 rates = nla_nest_start(msg, NL80211_ATTR_SCAN_SUPP_RATES); 4353 if (rates == NULL) 4354 goto nla_put_failure; 4355 4356 /* 4357 * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates 4358 * by masking out everything else apart from the OFDM rates 6, 4359 * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz 4360 * rates are left enabled. 4361 */ 4362 NLA_PUT(msg, NL80211_BAND_2GHZ, 8, 4363 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 4364 nla_nest_end(msg, rates); 4365 4366 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 4367 } 4368 4369 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4370 msg = NULL; 4371 if (ret) { 4372 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d " 4373 "(%s)", ret, strerror(-ret)); 4374#ifdef HOSTAPD 4375 if (is_ap_interface(drv->nlmode)) { 4376 /* 4377 * mac80211 does not allow scan requests in AP mode, so 4378 * try to do this in station mode. 4379 */ 4380 if (wpa_driver_nl80211_set_mode( 4381 bss, NL80211_IFTYPE_STATION)) 4382 goto nla_put_failure; 4383 4384 if (wpa_driver_nl80211_scan(bss, params)) { 4385 wpa_driver_nl80211_set_mode(bss, drv->nlmode); 4386 goto nla_put_failure; 4387 } 4388 4389 /* Restore AP mode when processing scan results */ 4390 drv->ap_scan_as_station = drv->nlmode; 4391 ret = 0; 4392 } else 4393 goto nla_put_failure; 4394#else /* HOSTAPD */ 4395 goto nla_put_failure; 4396#endif /* HOSTAPD */ 4397 } 4398 4399 drv->scan_state = SCAN_REQUESTED; 4400 /* Not all drivers generate "scan completed" wireless event, so try to 4401 * read results after a timeout. */ 4402 timeout = 10; 4403 if (drv->scan_complete_events) { 4404 /* 4405 * The driver seems to deliver events to notify when scan is 4406 * complete, so use longer timeout to avoid race conditions 4407 * with scanning and following association request. 4408 */ 4409 timeout = 30; 4410 } 4411 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d " 4412 "seconds", ret, timeout); 4413 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 4414 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout, 4415 drv, drv->ctx); 4416 4417nla_put_failure: 4418 nlmsg_free(msg); 4419 return ret; 4420} 4421 4422 4423/** 4424 * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan 4425 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 4426 * @params: Scan parameters 4427 * @interval: Interval between scan cycles in milliseconds 4428 * Returns: 0 on success, -1 on failure or if not supported 4429 */ 4430static int wpa_driver_nl80211_sched_scan(void *priv, 4431 struct wpa_driver_scan_params *params, 4432 u32 interval) 4433{ 4434 struct i802_bss *bss = priv; 4435 struct wpa_driver_nl80211_data *drv = bss->drv; 4436 int ret = -1; 4437 struct nl_msg *msg; 4438 size_t i; 4439 4440 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: sched_scan request"); 4441 4442#ifdef ANDROID 4443 if (!drv->capa.sched_scan_supported) 4444 return android_pno_start(bss, params); 4445#endif /* ANDROID */ 4446 4447 msg = nl80211_scan_common(drv, NL80211_CMD_START_SCHED_SCAN, params, 4448 bss->wdev_id_set ? &bss->wdev_id : NULL); 4449 if (!msg) 4450 goto nla_put_failure; 4451 4452 NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval); 4453 4454 if ((drv->num_filter_ssids && 4455 (int) drv->num_filter_ssids <= drv->capa.max_match_sets) || 4456 params->filter_rssi) { 4457 struct nlattr *match_sets; 4458 match_sets = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH); 4459 if (match_sets == NULL) 4460 goto nla_put_failure; 4461 4462 for (i = 0; i < drv->num_filter_ssids; i++) { 4463 struct nlattr *match_set_ssid; 4464 wpa_hexdump_ascii(MSG_MSGDUMP, 4465 "nl80211: Sched scan filter SSID", 4466 drv->filter_ssids[i].ssid, 4467 drv->filter_ssids[i].ssid_len); 4468 4469 match_set_ssid = nla_nest_start(msg, i + 1); 4470 if (match_set_ssid == NULL) 4471 goto nla_put_failure; 4472 NLA_PUT(msg, NL80211_ATTR_SCHED_SCAN_MATCH_SSID, 4473 drv->filter_ssids[i].ssid_len, 4474 drv->filter_ssids[i].ssid); 4475 4476 nla_nest_end(msg, match_set_ssid); 4477 } 4478 4479 if (params->filter_rssi) { 4480 struct nlattr *match_set_rssi; 4481 match_set_rssi = nla_nest_start(msg, 0); 4482 if (match_set_rssi == NULL) 4483 goto nla_put_failure; 4484 NLA_PUT_U32(msg, NL80211_SCHED_SCAN_MATCH_ATTR_RSSI, 4485 params->filter_rssi); 4486 wpa_printf(MSG_MSGDUMP, 4487 "nl80211: Sched scan RSSI filter %d dBm", 4488 params->filter_rssi); 4489 nla_nest_end(msg, match_set_rssi); 4490 } 4491 4492 nla_nest_end(msg, match_sets); 4493 } 4494 4495 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4496 4497 /* TODO: if we get an error here, we should fall back to normal scan */ 4498 4499 msg = NULL; 4500 if (ret) { 4501 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: " 4502 "ret=%d (%s)", ret, strerror(-ret)); 4503 goto nla_put_failure; 4504 } 4505 4506 wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - " 4507 "scan interval %d msec", ret, interval); 4508 4509nla_put_failure: 4510 nlmsg_free(msg); 4511 return ret; 4512} 4513 4514 4515/** 4516 * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan 4517 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 4518 * Returns: 0 on success, -1 on failure or if not supported 4519 */ 4520static int wpa_driver_nl80211_stop_sched_scan(void *priv) 4521{ 4522 struct i802_bss *bss = priv; 4523 struct wpa_driver_nl80211_data *drv = bss->drv; 4524 int ret = 0; 4525 struct nl_msg *msg; 4526 4527#ifdef ANDROID 4528 if (!drv->capa.sched_scan_supported) 4529 return android_pno_stop(bss); 4530#endif /* ANDROID */ 4531 4532 msg = nlmsg_alloc(); 4533 if (!msg) 4534 return -1; 4535 4536 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN); 4537 4538 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4539 4540 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4541 msg = NULL; 4542 if (ret) { 4543 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: " 4544 "ret=%d (%s)", ret, strerror(-ret)); 4545 goto nla_put_failure; 4546 } 4547 4548 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret); 4549 4550nla_put_failure: 4551 nlmsg_free(msg); 4552 return ret; 4553} 4554 4555 4556static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie) 4557{ 4558 const u8 *end, *pos; 4559 4560 if (ies == NULL) 4561 return NULL; 4562 4563 pos = ies; 4564 end = ies + ies_len; 4565 4566 while (pos + 1 < end) { 4567 if (pos + 2 + pos[1] > end) 4568 break; 4569 if (pos[0] == ie) 4570 return pos; 4571 pos += 2 + pos[1]; 4572 } 4573 4574 return NULL; 4575} 4576 4577 4578static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv, 4579 const u8 *ie, size_t ie_len) 4580{ 4581 const u8 *ssid; 4582 size_t i; 4583 4584 if (drv->filter_ssids == NULL) 4585 return 0; 4586 4587 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID); 4588 if (ssid == NULL) 4589 return 1; 4590 4591 for (i = 0; i < drv->num_filter_ssids; i++) { 4592 if (ssid[1] == drv->filter_ssids[i].ssid_len && 4593 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) == 4594 0) 4595 return 0; 4596 } 4597 4598 return 1; 4599} 4600 4601 4602static int bss_info_handler(struct nl_msg *msg, void *arg) 4603{ 4604 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 4605 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 4606 struct nlattr *bss[NL80211_BSS_MAX + 1]; 4607 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = { 4608 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC }, 4609 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 }, 4610 [NL80211_BSS_TSF] = { .type = NLA_U64 }, 4611 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 }, 4612 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 }, 4613 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC }, 4614 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 }, 4615 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 }, 4616 [NL80211_BSS_STATUS] = { .type = NLA_U32 }, 4617 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 }, 4618 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC }, 4619 }; 4620 struct nl80211_bss_info_arg *_arg = arg; 4621 struct wpa_scan_results *res = _arg->res; 4622 struct wpa_scan_res **tmp; 4623 struct wpa_scan_res *r; 4624 const u8 *ie, *beacon_ie; 4625 size_t ie_len, beacon_ie_len; 4626 u8 *pos; 4627 size_t i; 4628 4629 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 4630 genlmsg_attrlen(gnlh, 0), NULL); 4631 if (!tb[NL80211_ATTR_BSS]) 4632 return NL_SKIP; 4633 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS], 4634 bss_policy)) 4635 return NL_SKIP; 4636 if (bss[NL80211_BSS_STATUS]) { 4637 enum nl80211_bss_status status; 4638 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 4639 if (status == NL80211_BSS_STATUS_ASSOCIATED && 4640 bss[NL80211_BSS_FREQUENCY]) { 4641 _arg->assoc_freq = 4642 nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 4643 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz", 4644 _arg->assoc_freq); 4645 } 4646 if (status == NL80211_BSS_STATUS_ASSOCIATED && 4647 bss[NL80211_BSS_BSSID]) { 4648 os_memcpy(_arg->assoc_bssid, 4649 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN); 4650 wpa_printf(MSG_DEBUG, "nl80211: Associated with " 4651 MACSTR, MAC2STR(_arg->assoc_bssid)); 4652 } 4653 } 4654 if (!res) 4655 return NL_SKIP; 4656 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) { 4657 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 4658 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 4659 } else { 4660 ie = NULL; 4661 ie_len = 0; 4662 } 4663 if (bss[NL80211_BSS_BEACON_IES]) { 4664 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]); 4665 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]); 4666 } else { 4667 beacon_ie = NULL; 4668 beacon_ie_len = 0; 4669 } 4670 4671 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie, 4672 ie ? ie_len : beacon_ie_len)) 4673 return NL_SKIP; 4674 4675 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len); 4676 if (r == NULL) 4677 return NL_SKIP; 4678 if (bss[NL80211_BSS_BSSID]) 4679 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]), 4680 ETH_ALEN); 4681 if (bss[NL80211_BSS_FREQUENCY]) 4682 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 4683 if (bss[NL80211_BSS_BEACON_INTERVAL]) 4684 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]); 4685 if (bss[NL80211_BSS_CAPABILITY]) 4686 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]); 4687 r->flags |= WPA_SCAN_NOISE_INVALID; 4688 if (bss[NL80211_BSS_SIGNAL_MBM]) { 4689 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]); 4690 r->level /= 100; /* mBm to dBm */ 4691 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID; 4692 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) { 4693 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]); 4694 r->flags |= WPA_SCAN_QUAL_INVALID; 4695 } else 4696 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID; 4697 if (bss[NL80211_BSS_TSF]) 4698 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]); 4699 if (bss[NL80211_BSS_SEEN_MS_AGO]) 4700 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]); 4701 r->ie_len = ie_len; 4702 pos = (u8 *) (r + 1); 4703 if (ie) { 4704 os_memcpy(pos, ie, ie_len); 4705 pos += ie_len; 4706 } 4707 r->beacon_ie_len = beacon_ie_len; 4708 if (beacon_ie) 4709 os_memcpy(pos, beacon_ie, beacon_ie_len); 4710 4711 if (bss[NL80211_BSS_STATUS]) { 4712 enum nl80211_bss_status status; 4713 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 4714 switch (status) { 4715 case NL80211_BSS_STATUS_AUTHENTICATED: 4716 r->flags |= WPA_SCAN_AUTHENTICATED; 4717 break; 4718 case NL80211_BSS_STATUS_ASSOCIATED: 4719 r->flags |= WPA_SCAN_ASSOCIATED; 4720 break; 4721 default: 4722 break; 4723 } 4724 } 4725 4726 /* 4727 * cfg80211 maintains separate BSS table entries for APs if the same 4728 * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does 4729 * not use frequency as a separate key in the BSS table, so filter out 4730 * duplicated entries. Prefer associated BSS entry in such a case in 4731 * order to get the correct frequency into the BSS table. 4732 */ 4733 for (i = 0; i < res->num; i++) { 4734 const u8 *s1, *s2; 4735 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0) 4736 continue; 4737 4738 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1), 4739 res->res[i]->ie_len, WLAN_EID_SSID); 4740 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID); 4741 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] || 4742 os_memcmp(s1, s2, 2 + s1[1]) != 0) 4743 continue; 4744 4745 /* Same BSSID,SSID was already included in scan results */ 4746 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result " 4747 "for " MACSTR, MAC2STR(r->bssid)); 4748 4749 if ((r->flags & WPA_SCAN_ASSOCIATED) && 4750 !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) { 4751 os_free(res->res[i]); 4752 res->res[i] = r; 4753 } else 4754 os_free(r); 4755 return NL_SKIP; 4756 } 4757 4758 tmp = os_realloc_array(res->res, res->num + 1, 4759 sizeof(struct wpa_scan_res *)); 4760 if (tmp == NULL) { 4761 os_free(r); 4762 return NL_SKIP; 4763 } 4764 tmp[res->num++] = r; 4765 res->res = tmp; 4766 4767 return NL_SKIP; 4768} 4769 4770 4771static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv, 4772 const u8 *addr) 4773{ 4774 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 4775 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state " 4776 "mismatch (" MACSTR ")", MAC2STR(addr)); 4777 wpa_driver_nl80211_mlme(drv, addr, 4778 NL80211_CMD_DEAUTHENTICATE, 4779 WLAN_REASON_PREV_AUTH_NOT_VALID, 1); 4780 } 4781} 4782 4783 4784static void wpa_driver_nl80211_check_bss_status( 4785 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res) 4786{ 4787 size_t i; 4788 4789 for (i = 0; i < res->num; i++) { 4790 struct wpa_scan_res *r = res->res[i]; 4791 if (r->flags & WPA_SCAN_AUTHENTICATED) { 4792 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 4793 "indicates BSS status with " MACSTR 4794 " as authenticated", 4795 MAC2STR(r->bssid)); 4796 if (is_sta_interface(drv->nlmode) && 4797 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 && 4798 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) != 4799 0) { 4800 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID" 4801 " in local state (auth=" MACSTR 4802 " assoc=" MACSTR ")", 4803 MAC2STR(drv->auth_bssid), 4804 MAC2STR(drv->bssid)); 4805 clear_state_mismatch(drv, r->bssid); 4806 } 4807 } 4808 4809 if (r->flags & WPA_SCAN_ASSOCIATED) { 4810 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 4811 "indicate BSS status with " MACSTR 4812 " as associated", 4813 MAC2STR(r->bssid)); 4814 if (is_sta_interface(drv->nlmode) && 4815 !drv->associated) { 4816 wpa_printf(MSG_DEBUG, "nl80211: Local state " 4817 "(not associated) does not match " 4818 "with BSS state"); 4819 clear_state_mismatch(drv, r->bssid); 4820 } else if (is_sta_interface(drv->nlmode) && 4821 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) != 4822 0) { 4823 wpa_printf(MSG_DEBUG, "nl80211: Local state " 4824 "(associated with " MACSTR ") does " 4825 "not match with BSS state", 4826 MAC2STR(drv->bssid)); 4827 clear_state_mismatch(drv, r->bssid); 4828 clear_state_mismatch(drv, drv->bssid); 4829 } 4830 } 4831 } 4832} 4833 4834 4835static struct wpa_scan_results * 4836nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv) 4837{ 4838 struct nl_msg *msg; 4839 struct wpa_scan_results *res; 4840 int ret; 4841 struct nl80211_bss_info_arg arg; 4842 4843 res = os_zalloc(sizeof(*res)); 4844 if (res == NULL) 4845 return NULL; 4846 msg = nlmsg_alloc(); 4847 if (!msg) 4848 goto nla_put_failure; 4849 4850 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 4851 if (nl80211_set_iface_id(msg, &drv->first_bss) < 0) 4852 goto nla_put_failure; 4853 4854 arg.drv = drv; 4855 arg.res = res; 4856 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 4857 msg = NULL; 4858 if (ret == 0) { 4859 wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu " 4860 "BSSes)", (unsigned long) res->num); 4861 nl80211_get_noise_for_scan_results(drv, res); 4862 return res; 4863 } 4864 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 4865 "(%s)", ret, strerror(-ret)); 4866nla_put_failure: 4867 nlmsg_free(msg); 4868 wpa_scan_results_free(res); 4869 return NULL; 4870} 4871 4872 4873/** 4874 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results 4875 * @priv: Pointer to private wext data from wpa_driver_nl80211_init() 4876 * Returns: Scan results on success, -1 on failure 4877 */ 4878static struct wpa_scan_results * 4879wpa_driver_nl80211_get_scan_results(void *priv) 4880{ 4881 struct i802_bss *bss = priv; 4882 struct wpa_driver_nl80211_data *drv = bss->drv; 4883 struct wpa_scan_results *res; 4884 4885 res = nl80211_get_scan_results(drv); 4886 if (res) 4887 wpa_driver_nl80211_check_bss_status(drv, res); 4888 return res; 4889} 4890 4891 4892static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv) 4893{ 4894 struct wpa_scan_results *res; 4895 size_t i; 4896 4897 res = nl80211_get_scan_results(drv); 4898 if (res == NULL) { 4899 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results"); 4900 return; 4901 } 4902 4903 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump"); 4904 for (i = 0; i < res->num; i++) { 4905 struct wpa_scan_res *r = res->res[i]; 4906 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s", 4907 (int) i, (int) res->num, MAC2STR(r->bssid), 4908 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "", 4909 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : ""); 4910 } 4911 4912 wpa_scan_results_free(res); 4913} 4914 4915 4916static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss, 4917 enum wpa_alg alg, const u8 *addr, 4918 int key_idx, int set_tx, 4919 const u8 *seq, size_t seq_len, 4920 const u8 *key, size_t key_len) 4921{ 4922 struct wpa_driver_nl80211_data *drv = bss->drv; 4923 int ifindex; 4924 struct nl_msg *msg; 4925 int ret; 4926 int tdls = 0; 4927 4928 /* Ignore for P2P Device */ 4929 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 4930 return 0; 4931 4932 ifindex = if_nametoindex(ifname); 4933 wpa_printf(MSG_DEBUG, "%s: ifindex=%d (%s) alg=%d addr=%p key_idx=%d " 4934 "set_tx=%d seq_len=%lu key_len=%lu", 4935 __func__, ifindex, ifname, alg, addr, key_idx, set_tx, 4936 (unsigned long) seq_len, (unsigned long) key_len); 4937#ifdef CONFIG_TDLS 4938 if (key_idx == -1) { 4939 key_idx = 0; 4940 tdls = 1; 4941 } 4942#endif /* CONFIG_TDLS */ 4943 4944 msg = nlmsg_alloc(); 4945 if (!msg) 4946 return -ENOMEM; 4947 4948 if (alg == WPA_ALG_NONE) { 4949 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY); 4950 } else { 4951 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY); 4952 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key); 4953 switch (alg) { 4954 case WPA_ALG_WEP: 4955 if (key_len == 5) 4956 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4957 WLAN_CIPHER_SUITE_WEP40); 4958 else 4959 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4960 WLAN_CIPHER_SUITE_WEP104); 4961 break; 4962 case WPA_ALG_TKIP: 4963 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4964 WLAN_CIPHER_SUITE_TKIP); 4965 break; 4966 case WPA_ALG_CCMP: 4967 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4968 WLAN_CIPHER_SUITE_CCMP); 4969 break; 4970 case WPA_ALG_GCMP: 4971 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4972 WLAN_CIPHER_SUITE_GCMP); 4973 break; 4974 case WPA_ALG_IGTK: 4975 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4976 WLAN_CIPHER_SUITE_AES_CMAC); 4977 break; 4978 case WPA_ALG_SMS4: 4979 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4980 WLAN_CIPHER_SUITE_SMS4); 4981 break; 4982 case WPA_ALG_KRK: 4983 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4984 WLAN_CIPHER_SUITE_KRK); 4985 break; 4986 default: 4987 wpa_printf(MSG_ERROR, "%s: Unsupported encryption " 4988 "algorithm %d", __func__, alg); 4989 nlmsg_free(msg); 4990 return -1; 4991 } 4992 } 4993 4994 if (seq && seq_len) 4995 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq); 4996 4997 if (addr && !is_broadcast_ether_addr(addr)) { 4998 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr)); 4999 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 5000 5001 if (alg != WPA_ALG_WEP && key_idx && !set_tx) { 5002 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK"); 5003 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, 5004 NL80211_KEYTYPE_GROUP); 5005 } 5006 } else if (addr && is_broadcast_ether_addr(addr)) { 5007 struct nlattr *types; 5008 5009 wpa_printf(MSG_DEBUG, " broadcast key"); 5010 5011 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5012 if (!types) 5013 goto nla_put_failure; 5014 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 5015 nla_nest_end(msg, types); 5016 } 5017 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 5018 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5019 5020 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5021 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE) 5022 ret = 0; 5023 if (ret) 5024 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)", 5025 ret, strerror(-ret)); 5026 5027 /* 5028 * If we failed or don't need to set the default TX key (below), 5029 * we're done here. 5030 */ 5031 if (ret || !set_tx || alg == WPA_ALG_NONE || tdls) 5032 return ret; 5033 if (is_ap_interface(drv->nlmode) && addr && 5034 !is_broadcast_ether_addr(addr)) 5035 return ret; 5036 5037 msg = nlmsg_alloc(); 5038 if (!msg) 5039 return -ENOMEM; 5040 5041 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY); 5042 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 5043 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5044 if (alg == WPA_ALG_IGTK) 5045 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT); 5046 else 5047 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT); 5048 if (addr && is_broadcast_ether_addr(addr)) { 5049 struct nlattr *types; 5050 5051 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5052 if (!types) 5053 goto nla_put_failure; 5054 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 5055 nla_nest_end(msg, types); 5056 } else if (addr) { 5057 struct nlattr *types; 5058 5059 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5060 if (!types) 5061 goto nla_put_failure; 5062 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_UNICAST); 5063 nla_nest_end(msg, types); 5064 } 5065 5066 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5067 if (ret == -ENOENT) 5068 ret = 0; 5069 if (ret) 5070 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; " 5071 "err=%d %s)", ret, strerror(-ret)); 5072 return ret; 5073 5074nla_put_failure: 5075 nlmsg_free(msg); 5076 return -ENOBUFS; 5077} 5078 5079 5080static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg, 5081 int key_idx, int defkey, 5082 const u8 *seq, size_t seq_len, 5083 const u8 *key, size_t key_len) 5084{ 5085 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY); 5086 if (!key_attr) 5087 return -1; 5088 5089 if (defkey && alg == WPA_ALG_IGTK) 5090 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT); 5091 else if (defkey) 5092 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 5093 5094 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx); 5095 5096 switch (alg) { 5097 case WPA_ALG_WEP: 5098 if (key_len == 5) 5099 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5100 WLAN_CIPHER_SUITE_WEP40); 5101 else 5102 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5103 WLAN_CIPHER_SUITE_WEP104); 5104 break; 5105 case WPA_ALG_TKIP: 5106 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP); 5107 break; 5108 case WPA_ALG_CCMP: 5109 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP); 5110 break; 5111 case WPA_ALG_GCMP: 5112 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_GCMP); 5113 break; 5114 case WPA_ALG_IGTK: 5115 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5116 WLAN_CIPHER_SUITE_AES_CMAC); 5117 break; 5118 default: 5119 wpa_printf(MSG_ERROR, "%s: Unsupported encryption " 5120 "algorithm %d", __func__, alg); 5121 return -1; 5122 } 5123 5124 if (seq && seq_len) 5125 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq); 5126 5127 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key); 5128 5129 nla_nest_end(msg, key_attr); 5130 5131 return 0; 5132 nla_put_failure: 5133 return -1; 5134} 5135 5136 5137static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params, 5138 struct nl_msg *msg) 5139{ 5140 int i, privacy = 0; 5141 struct nlattr *nl_keys, *nl_key; 5142 5143 for (i = 0; i < 4; i++) { 5144 if (!params->wep_key[i]) 5145 continue; 5146 privacy = 1; 5147 break; 5148 } 5149 if (params->wps == WPS_MODE_PRIVACY) 5150 privacy = 1; 5151 if (params->pairwise_suite && 5152 params->pairwise_suite != WPA_CIPHER_NONE) 5153 privacy = 1; 5154 5155 if (!privacy) 5156 return 0; 5157 5158 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 5159 5160 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS); 5161 if (!nl_keys) 5162 goto nla_put_failure; 5163 5164 for (i = 0; i < 4; i++) { 5165 if (!params->wep_key[i]) 5166 continue; 5167 5168 nl_key = nla_nest_start(msg, i); 5169 if (!nl_key) 5170 goto nla_put_failure; 5171 5172 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i], 5173 params->wep_key[i]); 5174 if (params->wep_key_len[i] == 5) 5175 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5176 WLAN_CIPHER_SUITE_WEP40); 5177 else 5178 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5179 WLAN_CIPHER_SUITE_WEP104); 5180 5181 NLA_PUT_U8(msg, NL80211_KEY_IDX, i); 5182 5183 if (i == params->wep_tx_keyidx) 5184 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 5185 5186 nla_nest_end(msg, nl_key); 5187 } 5188 nla_nest_end(msg, nl_keys); 5189 5190 return 0; 5191 5192nla_put_failure: 5193 return -ENOBUFS; 5194} 5195 5196 5197static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 5198 const u8 *addr, int cmd, u16 reason_code, 5199 int local_state_change) 5200{ 5201 int ret = -1; 5202 struct nl_msg *msg; 5203 5204 msg = nlmsg_alloc(); 5205 if (!msg) 5206 return -1; 5207 5208 nl80211_cmd(drv, msg, 0, cmd); 5209 5210 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5211 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code); 5212 if (addr) 5213 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 5214 if (local_state_change) 5215 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 5216 5217 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5218 msg = NULL; 5219 if (ret) { 5220 wpa_dbg(drv->ctx, MSG_DEBUG, 5221 "nl80211: MLME command failed: reason=%u ret=%d (%s)", 5222 reason_code, ret, strerror(-ret)); 5223 goto nla_put_failure; 5224 } 5225 ret = 0; 5226 5227nla_put_failure: 5228 nlmsg_free(msg); 5229 return ret; 5230} 5231 5232 5233static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv, 5234 int reason_code) 5235{ 5236 int ret; 5237 5238 wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code); 5239 nl80211_mark_disconnected(drv); 5240 /* Disconnect command doesn't need BSSID - it uses cached value */ 5241 ret = wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT, 5242 reason_code, 0); 5243 /* 5244 * For locally generated disconnect, supplicant already generates a 5245 * DEAUTH event, so ignore the event from NL80211. 5246 */ 5247 drv->ignore_next_local_disconnect = ret == 0; 5248 5249 return ret; 5250} 5251 5252 5253static int wpa_driver_nl80211_deauthenticate(struct i802_bss *bss, 5254 const u8 *addr, int reason_code) 5255{ 5256 struct wpa_driver_nl80211_data *drv = bss->drv; 5257 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) 5258 return wpa_driver_nl80211_disconnect(drv, reason_code); 5259 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)", 5260 __func__, MAC2STR(addr), reason_code); 5261 nl80211_mark_disconnected(drv); 5262 if (drv->nlmode == NL80211_IFTYPE_ADHOC) 5263 return nl80211_leave_ibss(drv); 5264 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE, 5265 reason_code, 0); 5266} 5267 5268 5269static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv, 5270 struct wpa_driver_auth_params *params) 5271{ 5272 int i; 5273 5274 drv->auth_freq = params->freq; 5275 drv->auth_alg = params->auth_alg; 5276 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx; 5277 drv->auth_local_state_change = params->local_state_change; 5278 drv->auth_p2p = params->p2p; 5279 5280 if (params->bssid) 5281 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN); 5282 else 5283 os_memset(drv->auth_bssid_, 0, ETH_ALEN); 5284 5285 if (params->ssid) { 5286 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len); 5287 drv->auth_ssid_len = params->ssid_len; 5288 } else 5289 drv->auth_ssid_len = 0; 5290 5291 5292 os_free(drv->auth_ie); 5293 drv->auth_ie = NULL; 5294 drv->auth_ie_len = 0; 5295 if (params->ie) { 5296 drv->auth_ie = os_malloc(params->ie_len); 5297 if (drv->auth_ie) { 5298 os_memcpy(drv->auth_ie, params->ie, params->ie_len); 5299 drv->auth_ie_len = params->ie_len; 5300 } 5301 } 5302 5303 for (i = 0; i < 4; i++) { 5304 if (params->wep_key[i] && params->wep_key_len[i] && 5305 params->wep_key_len[i] <= 16) { 5306 os_memcpy(drv->auth_wep_key[i], params->wep_key[i], 5307 params->wep_key_len[i]); 5308 drv->auth_wep_key_len[i] = params->wep_key_len[i]; 5309 } else 5310 drv->auth_wep_key_len[i] = 0; 5311 } 5312} 5313 5314 5315static int wpa_driver_nl80211_authenticate( 5316 struct i802_bss *bss, struct wpa_driver_auth_params *params) 5317{ 5318 struct wpa_driver_nl80211_data *drv = bss->drv; 5319 int ret = -1, i; 5320 struct nl_msg *msg; 5321 enum nl80211_auth_type type; 5322 enum nl80211_iftype nlmode; 5323 int count = 0; 5324 int is_retry; 5325 5326 is_retry = drv->retry_auth; 5327 drv->retry_auth = 0; 5328 5329 nl80211_mark_disconnected(drv); 5330 os_memset(drv->auth_bssid, 0, ETH_ALEN); 5331 if (params->bssid) 5332 os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN); 5333 else 5334 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 5335 /* FIX: IBSS mode */ 5336 nlmode = params->p2p ? 5337 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 5338 if (drv->nlmode != nlmode && 5339 wpa_driver_nl80211_set_mode(bss, nlmode) < 0) 5340 return -1; 5341 5342retry: 5343 msg = nlmsg_alloc(); 5344 if (!msg) 5345 return -1; 5346 5347 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)", 5348 drv->ifindex); 5349 5350 nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE); 5351 5352 for (i = 0; i < 4; i++) { 5353 if (!params->wep_key[i]) 5354 continue; 5355 wpa_driver_nl80211_set_key(bss->ifname, bss, WPA_ALG_WEP, 5356 NULL, i, 5357 i == params->wep_tx_keyidx, NULL, 0, 5358 params->wep_key[i], 5359 params->wep_key_len[i]); 5360 if (params->wep_tx_keyidx != i) 5361 continue; 5362 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0, 5363 params->wep_key[i], params->wep_key_len[i])) { 5364 nlmsg_free(msg); 5365 return -1; 5366 } 5367 } 5368 5369 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5370 if (params->bssid) { 5371 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 5372 MAC2STR(params->bssid)); 5373 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 5374 } 5375 if (params->freq) { 5376 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 5377 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 5378 } 5379 if (params->ssid) { 5380 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 5381 params->ssid, params->ssid_len); 5382 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 5383 params->ssid); 5384 } 5385 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len); 5386 if (params->ie) 5387 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie); 5388 if (params->sae_data) { 5389 wpa_hexdump(MSG_DEBUG, " * SAE data", params->sae_data, 5390 params->sae_data_len); 5391 NLA_PUT(msg, NL80211_ATTR_SAE_DATA, params->sae_data_len, 5392 params->sae_data); 5393 } 5394 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 5395 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 5396 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 5397 type = NL80211_AUTHTYPE_SHARED_KEY; 5398 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 5399 type = NL80211_AUTHTYPE_NETWORK_EAP; 5400 else if (params->auth_alg & WPA_AUTH_ALG_FT) 5401 type = NL80211_AUTHTYPE_FT; 5402 else if (params->auth_alg & WPA_AUTH_ALG_SAE) 5403 type = NL80211_AUTHTYPE_SAE; 5404 else 5405 goto nla_put_failure; 5406 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 5407 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 5408 if (params->local_state_change) { 5409 wpa_printf(MSG_DEBUG, " * Local state change only"); 5410 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 5411 } 5412 5413 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5414 msg = NULL; 5415 if (ret) { 5416 wpa_dbg(drv->ctx, MSG_DEBUG, 5417 "nl80211: MLME command failed (auth): ret=%d (%s)", 5418 ret, strerror(-ret)); 5419 count++; 5420 if (ret == -EALREADY && count == 1 && params->bssid && 5421 !params->local_state_change) { 5422 /* 5423 * mac80211 does not currently accept new 5424 * authentication if we are already authenticated. As a 5425 * workaround, force deauthentication and try again. 5426 */ 5427 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication " 5428 "after forced deauthentication"); 5429 wpa_driver_nl80211_deauthenticate( 5430 bss, params->bssid, 5431 WLAN_REASON_PREV_AUTH_NOT_VALID); 5432 nlmsg_free(msg); 5433 goto retry; 5434 } 5435 5436 if (ret == -ENOENT && params->freq && !is_retry) { 5437 /* 5438 * cfg80211 has likely expired the BSS entry even 5439 * though it was previously available in our internal 5440 * BSS table. To recover quickly, start a single 5441 * channel scan on the specified channel. 5442 */ 5443 struct wpa_driver_scan_params scan; 5444 int freqs[2]; 5445 5446 os_memset(&scan, 0, sizeof(scan)); 5447 scan.num_ssids = 1; 5448 if (params->ssid) { 5449 scan.ssids[0].ssid = params->ssid; 5450 scan.ssids[0].ssid_len = params->ssid_len; 5451 } 5452 freqs[0] = params->freq; 5453 freqs[1] = 0; 5454 scan.freqs = freqs; 5455 wpa_printf(MSG_DEBUG, "nl80211: Trigger single " 5456 "channel scan to refresh cfg80211 BSS " 5457 "entry"); 5458 ret = wpa_driver_nl80211_scan(bss, &scan); 5459 if (ret == 0) { 5460 nl80211_copy_auth_params(drv, params); 5461 drv->scan_for_auth = 1; 5462 } 5463 } else if (is_retry) { 5464 /* 5465 * Need to indicate this with an event since the return 5466 * value from the retry is not delivered to core code. 5467 */ 5468 union wpa_event_data event; 5469 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry " 5470 "failed"); 5471 os_memset(&event, 0, sizeof(event)); 5472 os_memcpy(event.timeout_event.addr, drv->auth_bssid_, 5473 ETH_ALEN); 5474 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT, 5475 &event); 5476 } 5477 5478 goto nla_put_failure; 5479 } 5480 ret = 0; 5481 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send " 5482 "successfully"); 5483 5484nla_put_failure: 5485 nlmsg_free(msg); 5486 return ret; 5487} 5488 5489 5490static int wpa_driver_nl80211_authenticate_retry( 5491 struct wpa_driver_nl80211_data *drv) 5492{ 5493 struct wpa_driver_auth_params params; 5494 struct i802_bss *bss = &drv->first_bss; 5495 int i; 5496 5497 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again"); 5498 5499 os_memset(¶ms, 0, sizeof(params)); 5500 params.freq = drv->auth_freq; 5501 params.auth_alg = drv->auth_alg; 5502 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx; 5503 params.local_state_change = drv->auth_local_state_change; 5504 params.p2p = drv->auth_p2p; 5505 5506 if (!is_zero_ether_addr(drv->auth_bssid_)) 5507 params.bssid = drv->auth_bssid_; 5508 5509 if (drv->auth_ssid_len) { 5510 params.ssid = drv->auth_ssid; 5511 params.ssid_len = drv->auth_ssid_len; 5512 } 5513 5514 params.ie = drv->auth_ie; 5515 params.ie_len = drv->auth_ie_len; 5516 5517 for (i = 0; i < 4; i++) { 5518 if (drv->auth_wep_key_len[i]) { 5519 params.wep_key[i] = drv->auth_wep_key[i]; 5520 params.wep_key_len[i] = drv->auth_wep_key_len[i]; 5521 } 5522 } 5523 5524 drv->retry_auth = 1; 5525 return wpa_driver_nl80211_authenticate(bss, ¶ms); 5526} 5527 5528 5529struct phy_info_arg { 5530 u16 *num_modes; 5531 struct hostapd_hw_modes *modes; 5532 int last_mode, last_chan_idx; 5533}; 5534 5535static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa, 5536 struct nlattr *ampdu_factor, 5537 struct nlattr *ampdu_density, 5538 struct nlattr *mcs_set) 5539{ 5540 if (capa) 5541 mode->ht_capab = nla_get_u16(capa); 5542 5543 if (ampdu_factor) 5544 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03; 5545 5546 if (ampdu_density) 5547 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2; 5548 5549 if (mcs_set && nla_len(mcs_set) >= 16) { 5550 u8 *mcs; 5551 mcs = nla_data(mcs_set); 5552 os_memcpy(mode->mcs_set, mcs, 16); 5553 } 5554} 5555 5556 5557static void phy_info_vht_capa(struct hostapd_hw_modes *mode, 5558 struct nlattr *capa, 5559 struct nlattr *mcs_set) 5560{ 5561 if (capa) 5562 mode->vht_capab = nla_get_u32(capa); 5563 5564 if (mcs_set && nla_len(mcs_set) >= 8) { 5565 u8 *mcs; 5566 mcs = nla_data(mcs_set); 5567 os_memcpy(mode->vht_mcs_set, mcs, 8); 5568 } 5569} 5570 5571 5572static void phy_info_freq(struct hostapd_hw_modes *mode, 5573 struct hostapd_channel_data *chan, 5574 struct nlattr *tb_freq[]) 5575{ 5576 u8 channel; 5577 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]); 5578 chan->flag = 0; 5579 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES) 5580 chan->chan = channel; 5581 5582 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) 5583 chan->flag |= HOSTAPD_CHAN_DISABLED; 5584 if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN]) 5585 chan->flag |= HOSTAPD_CHAN_PASSIVE_SCAN; 5586 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS]) 5587 chan->flag |= HOSTAPD_CHAN_NO_IBSS; 5588 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR]) 5589 chan->flag |= HOSTAPD_CHAN_RADAR; 5590 5591 if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] && 5592 !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) 5593 chan->max_tx_power = nla_get_u32( 5594 tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100; 5595 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) { 5596 enum nl80211_dfs_state state = 5597 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]); 5598 5599 switch (state) { 5600 case NL80211_DFS_USABLE: 5601 chan->flag |= HOSTAPD_CHAN_DFS_USABLE; 5602 break; 5603 case NL80211_DFS_AVAILABLE: 5604 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE; 5605 break; 5606 case NL80211_DFS_UNAVAILABLE: 5607 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE; 5608 break; 5609 } 5610 } 5611} 5612 5613 5614static int phy_info_freqs(struct phy_info_arg *phy_info, 5615 struct hostapd_hw_modes *mode, struct nlattr *tb) 5616{ 5617 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 5618 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 }, 5619 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG }, 5620 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG }, 5621 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG }, 5622 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG }, 5623 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 }, 5624 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 }, 5625 }; 5626 int new_channels = 0; 5627 struct hostapd_channel_data *channel; 5628 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1]; 5629 struct nlattr *nl_freq; 5630 int rem_freq, idx; 5631 5632 if (tb == NULL) 5633 return NL_OK; 5634 5635 nla_for_each_nested(nl_freq, tb, rem_freq) { 5636 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 5637 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 5638 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 5639 continue; 5640 new_channels++; 5641 } 5642 5643 channel = os_realloc_array(mode->channels, 5644 mode->num_channels + new_channels, 5645 sizeof(struct hostapd_channel_data)); 5646 if (!channel) 5647 return NL_SKIP; 5648 5649 mode->channels = channel; 5650 mode->num_channels += new_channels; 5651 5652 idx = phy_info->last_chan_idx; 5653 5654 nla_for_each_nested(nl_freq, tb, rem_freq) { 5655 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 5656 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 5657 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 5658 continue; 5659 phy_info_freq(mode, &mode->channels[idx], tb_freq); 5660 idx++; 5661 } 5662 phy_info->last_chan_idx = idx; 5663 5664 return NL_OK; 5665} 5666 5667 5668static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb) 5669{ 5670 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = { 5671 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 }, 5672 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = 5673 { .type = NLA_FLAG }, 5674 }; 5675 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1]; 5676 struct nlattr *nl_rate; 5677 int rem_rate, idx; 5678 5679 if (tb == NULL) 5680 return NL_OK; 5681 5682 nla_for_each_nested(nl_rate, tb, rem_rate) { 5683 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 5684 nla_data(nl_rate), nla_len(nl_rate), 5685 rate_policy); 5686 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 5687 continue; 5688 mode->num_rates++; 5689 } 5690 5691 mode->rates = os_calloc(mode->num_rates, sizeof(int)); 5692 if (!mode->rates) 5693 return NL_SKIP; 5694 5695 idx = 0; 5696 5697 nla_for_each_nested(nl_rate, tb, rem_rate) { 5698 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 5699 nla_data(nl_rate), nla_len(nl_rate), 5700 rate_policy); 5701 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 5702 continue; 5703 mode->rates[idx] = nla_get_u32( 5704 tb_rate[NL80211_BITRATE_ATTR_RATE]); 5705 idx++; 5706 } 5707 5708 return NL_OK; 5709} 5710 5711 5712static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band) 5713{ 5714 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1]; 5715 struct hostapd_hw_modes *mode; 5716 int ret; 5717 5718 if (phy_info->last_mode != nl_band->nla_type) { 5719 mode = os_realloc_array(phy_info->modes, 5720 *phy_info->num_modes + 1, 5721 sizeof(*mode)); 5722 if (!mode) 5723 return NL_SKIP; 5724 phy_info->modes = mode; 5725 5726 mode = &phy_info->modes[*(phy_info->num_modes)]; 5727 os_memset(mode, 0, sizeof(*mode)); 5728 mode->mode = NUM_HOSTAPD_MODES; 5729 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN | 5730 HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN; 5731 5732 /* 5733 * Unsupported VHT MCS stream is defined as value 3, so the VHT 5734 * MCS RX/TX map must be initialized with 0xffff to mark all 8 5735 * possible streams as unsupported. This will be overridden if 5736 * driver advertises VHT support. 5737 */ 5738 mode->vht_mcs_set[0] = 0xff; 5739 mode->vht_mcs_set[1] = 0xff; 5740 mode->vht_mcs_set[4] = 0xff; 5741 mode->vht_mcs_set[5] = 0xff; 5742 5743 *(phy_info->num_modes) += 1; 5744 phy_info->last_mode = nl_band->nla_type; 5745 phy_info->last_chan_idx = 0; 5746 } else 5747 mode = &phy_info->modes[*(phy_info->num_modes) - 1]; 5748 5749 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band), 5750 nla_len(nl_band), NULL); 5751 5752 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA], 5753 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR], 5754 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY], 5755 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]); 5756 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA], 5757 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]); 5758 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]); 5759 if (ret != NL_OK) 5760 return ret; 5761 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]); 5762 if (ret != NL_OK) 5763 return ret; 5764 5765 return NL_OK; 5766} 5767 5768 5769static int phy_info_handler(struct nl_msg *msg, void *arg) 5770{ 5771 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 5772 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 5773 struct phy_info_arg *phy_info = arg; 5774 struct nlattr *nl_band; 5775 int rem_band; 5776 5777 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 5778 genlmsg_attrlen(gnlh, 0), NULL); 5779 5780 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS]) 5781 return NL_SKIP; 5782 5783 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) 5784 { 5785 int res = phy_info_band(phy_info, nl_band); 5786 if (res != NL_OK) 5787 return res; 5788 } 5789 5790 return NL_SKIP; 5791} 5792 5793 5794static struct hostapd_hw_modes * 5795wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes, 5796 u16 *num_modes) 5797{ 5798 u16 m; 5799 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode; 5800 int i, mode11g_idx = -1; 5801 5802 /* heuristic to set up modes */ 5803 for (m = 0; m < *num_modes; m++) { 5804 if (!modes[m].num_channels) 5805 continue; 5806 if (modes[m].channels[0].freq < 4000) { 5807 modes[m].mode = HOSTAPD_MODE_IEEE80211B; 5808 for (i = 0; i < modes[m].num_rates; i++) { 5809 if (modes[m].rates[i] > 200) { 5810 modes[m].mode = HOSTAPD_MODE_IEEE80211G; 5811 break; 5812 } 5813 } 5814 } else if (modes[m].channels[0].freq > 50000) 5815 modes[m].mode = HOSTAPD_MODE_IEEE80211AD; 5816 else 5817 modes[m].mode = HOSTAPD_MODE_IEEE80211A; 5818 } 5819 5820 /* If only 802.11g mode is included, use it to construct matching 5821 * 802.11b mode data. */ 5822 5823 for (m = 0; m < *num_modes; m++) { 5824 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B) 5825 return modes; /* 802.11b already included */ 5826 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G) 5827 mode11g_idx = m; 5828 } 5829 5830 if (mode11g_idx < 0) 5831 return modes; /* 2.4 GHz band not supported at all */ 5832 5833 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes)); 5834 if (nmodes == NULL) 5835 return modes; /* Could not add 802.11b mode */ 5836 5837 mode = &nmodes[*num_modes]; 5838 os_memset(mode, 0, sizeof(*mode)); 5839 (*num_modes)++; 5840 modes = nmodes; 5841 5842 mode->mode = HOSTAPD_MODE_IEEE80211B; 5843 5844 mode11g = &modes[mode11g_idx]; 5845 mode->num_channels = mode11g->num_channels; 5846 mode->channels = os_malloc(mode11g->num_channels * 5847 sizeof(struct hostapd_channel_data)); 5848 if (mode->channels == NULL) { 5849 (*num_modes)--; 5850 return modes; /* Could not add 802.11b mode */ 5851 } 5852 os_memcpy(mode->channels, mode11g->channels, 5853 mode11g->num_channels * sizeof(struct hostapd_channel_data)); 5854 5855 mode->num_rates = 0; 5856 mode->rates = os_malloc(4 * sizeof(int)); 5857 if (mode->rates == NULL) { 5858 os_free(mode->channels); 5859 (*num_modes)--; 5860 return modes; /* Could not add 802.11b mode */ 5861 } 5862 5863 for (i = 0; i < mode11g->num_rates; i++) { 5864 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 && 5865 mode11g->rates[i] != 55 && mode11g->rates[i] != 110) 5866 continue; 5867 mode->rates[mode->num_rates] = mode11g->rates[i]; 5868 mode->num_rates++; 5869 if (mode->num_rates == 4) 5870 break; 5871 } 5872 5873 if (mode->num_rates == 0) { 5874 os_free(mode->channels); 5875 os_free(mode->rates); 5876 (*num_modes)--; 5877 return modes; /* No 802.11b rates */ 5878 } 5879 5880 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g " 5881 "information"); 5882 5883 return modes; 5884} 5885 5886 5887static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start, 5888 int end) 5889{ 5890 int c; 5891 5892 for (c = 0; c < mode->num_channels; c++) { 5893 struct hostapd_channel_data *chan = &mode->channels[c]; 5894 if (chan->freq - 10 >= start && chan->freq + 10 <= end) 5895 chan->flag |= HOSTAPD_CHAN_HT40; 5896 } 5897} 5898 5899 5900static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start, 5901 int end) 5902{ 5903 int c; 5904 5905 for (c = 0; c < mode->num_channels; c++) { 5906 struct hostapd_channel_data *chan = &mode->channels[c]; 5907 if (!(chan->flag & HOSTAPD_CHAN_HT40)) 5908 continue; 5909 if (chan->freq - 30 >= start && chan->freq - 10 <= end) 5910 chan->flag |= HOSTAPD_CHAN_HT40MINUS; 5911 if (chan->freq + 10 >= start && chan->freq + 30 <= end) 5912 chan->flag |= HOSTAPD_CHAN_HT40PLUS; 5913 } 5914} 5915 5916 5917static void nl80211_reg_rule_ht40(struct nlattr *tb[], 5918 struct phy_info_arg *results) 5919{ 5920 u32 start, end, max_bw; 5921 u16 m; 5922 5923 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 5924 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 5925 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 5926 return; 5927 5928 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 5929 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 5930 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 5931 5932 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz", 5933 start, end, max_bw); 5934 if (max_bw < 40) 5935 return; 5936 5937 for (m = 0; m < *results->num_modes; m++) { 5938 if (!(results->modes[m].ht_capab & 5939 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 5940 continue; 5941 nl80211_set_ht40_mode(&results->modes[m], start, end); 5942 } 5943} 5944 5945 5946static void nl80211_reg_rule_sec(struct nlattr *tb[], 5947 struct phy_info_arg *results) 5948{ 5949 u32 start, end, max_bw; 5950 u16 m; 5951 5952 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 5953 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 5954 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 5955 return; 5956 5957 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 5958 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 5959 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 5960 5961 if (max_bw < 20) 5962 return; 5963 5964 for (m = 0; m < *results->num_modes; m++) { 5965 if (!(results->modes[m].ht_capab & 5966 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 5967 continue; 5968 nl80211_set_ht40_mode_sec(&results->modes[m], start, end); 5969 } 5970} 5971 5972 5973static int nl80211_get_reg(struct nl_msg *msg, void *arg) 5974{ 5975 struct phy_info_arg *results = arg; 5976 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 5977 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 5978 struct nlattr *nl_rule; 5979 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1]; 5980 int rem_rule; 5981 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 5982 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, 5983 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, 5984 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, 5985 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, 5986 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, 5987 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, 5988 }; 5989 5990 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 5991 genlmsg_attrlen(gnlh, 0), NULL); 5992 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] || 5993 !tb_msg[NL80211_ATTR_REG_RULES]) { 5994 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information " 5995 "available"); 5996 return NL_SKIP; 5997 } 5998 5999 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s", 6000 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2])); 6001 6002 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6003 { 6004 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6005 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6006 nl80211_reg_rule_ht40(tb_rule, results); 6007 } 6008 6009 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6010 { 6011 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6012 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6013 nl80211_reg_rule_sec(tb_rule, results); 6014 } 6015 6016 return NL_SKIP; 6017} 6018 6019 6020static int nl80211_set_ht40_flags(struct wpa_driver_nl80211_data *drv, 6021 struct phy_info_arg *results) 6022{ 6023 struct nl_msg *msg; 6024 6025 msg = nlmsg_alloc(); 6026 if (!msg) 6027 return -ENOMEM; 6028 6029 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 6030 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results); 6031} 6032 6033 6034static struct hostapd_hw_modes * 6035wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags) 6036{ 6037 u32 feat; 6038 struct i802_bss *bss = priv; 6039 struct wpa_driver_nl80211_data *drv = bss->drv; 6040 struct nl_msg *msg; 6041 struct phy_info_arg result = { 6042 .num_modes = num_modes, 6043 .modes = NULL, 6044 .last_mode = -1, 6045 }; 6046 6047 *num_modes = 0; 6048 *flags = 0; 6049 6050 msg = nlmsg_alloc(); 6051 if (!msg) 6052 return NULL; 6053 6054 feat = get_nl80211_protocol_features(drv); 6055 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 6056 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 6057 else 6058 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 6059 6060 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 6061 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6062 6063 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) { 6064 nl80211_set_ht40_flags(drv, &result); 6065 return wpa_driver_nl80211_postprocess_modes(result.modes, 6066 num_modes); 6067 } 6068 msg = NULL; 6069 nla_put_failure: 6070 nlmsg_free(msg); 6071 return NULL; 6072} 6073 6074 6075static int wpa_driver_nl80211_send_mntr(struct wpa_driver_nl80211_data *drv, 6076 const void *data, size_t len, 6077 int encrypt, int noack) 6078{ 6079 __u8 rtap_hdr[] = { 6080 0x00, 0x00, /* radiotap version */ 6081 0x0e, 0x00, /* radiotap length */ 6082 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */ 6083 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */ 6084 0x00, /* padding */ 6085 0x00, 0x00, /* RX and TX flags to indicate that */ 6086 0x00, 0x00, /* this is the injected frame directly */ 6087 }; 6088 struct iovec iov[2] = { 6089 { 6090 .iov_base = &rtap_hdr, 6091 .iov_len = sizeof(rtap_hdr), 6092 }, 6093 { 6094 .iov_base = (void *) data, 6095 .iov_len = len, 6096 } 6097 }; 6098 struct msghdr msg = { 6099 .msg_name = NULL, 6100 .msg_namelen = 0, 6101 .msg_iov = iov, 6102 .msg_iovlen = 2, 6103 .msg_control = NULL, 6104 .msg_controllen = 0, 6105 .msg_flags = 0, 6106 }; 6107 int res; 6108 u16 txflags = 0; 6109 6110 if (encrypt) 6111 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP; 6112 6113 if (drv->monitor_sock < 0) { 6114 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available " 6115 "for %s", __func__); 6116 return -1; 6117 } 6118 6119 if (noack) 6120 txflags |= IEEE80211_RADIOTAP_F_TX_NOACK; 6121 WPA_PUT_LE16(&rtap_hdr[12], txflags); 6122 6123 res = sendmsg(drv->monitor_sock, &msg, 0); 6124 if (res < 0) { 6125 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno)); 6126 return -1; 6127 } 6128 return 0; 6129} 6130 6131 6132static int wpa_driver_nl80211_send_frame(struct i802_bss *bss, 6133 const void *data, size_t len, 6134 int encrypt, int noack, 6135 unsigned int freq, int no_cck, 6136 int offchanok, unsigned int wait_time) 6137{ 6138 struct wpa_driver_nl80211_data *drv = bss->drv; 6139 u64 cookie; 6140 6141 if (freq == 0) { 6142 wpa_printf(MSG_DEBUG, "nl80211: send_frame - Use bss->freq=%u", 6143 bss->freq); 6144 freq = bss->freq; 6145 } 6146 6147 if (drv->use_monitor) { 6148 wpa_printf(MSG_DEBUG, "nl80211: send_frame(freq=%u bss->freq=%u) -> send_mntr", 6149 freq, bss->freq); 6150 return wpa_driver_nl80211_send_mntr(drv, data, len, 6151 encrypt, noack); 6152 } 6153 6154 wpa_printf(MSG_DEBUG, "nl80211: send_frame -> send_frame_cmd"); 6155 return nl80211_send_frame_cmd(bss, freq, wait_time, data, len, 6156 &cookie, no_cck, noack, offchanok); 6157} 6158 6159 6160static int wpa_driver_nl80211_send_mlme(struct i802_bss *bss, const u8 *data, 6161 size_t data_len, int noack, 6162 unsigned int freq, int no_cck, 6163 int offchanok, 6164 unsigned int wait_time) 6165{ 6166 struct wpa_driver_nl80211_data *drv = bss->drv; 6167 struct ieee80211_mgmt *mgmt; 6168 int encrypt = 1; 6169 u16 fc; 6170 6171 mgmt = (struct ieee80211_mgmt *) data; 6172 fc = le_to_host16(mgmt->frame_control); 6173 wpa_printf(MSG_DEBUG, "nl80211: send_mlme - noack=%d freq=%u no_cck=%d offchanok=%d wait_time=%u fc=0x%x nlmode=%d", 6174 noack, freq, no_cck, offchanok, wait_time, fc, drv->nlmode); 6175 6176 if ((is_sta_interface(drv->nlmode) || 6177 drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) && 6178 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6179 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) { 6180 /* 6181 * The use of last_mgmt_freq is a bit of a hack, 6182 * but it works due to the single-threaded nature 6183 * of wpa_supplicant. 6184 */ 6185 if (freq == 0) { 6186 wpa_printf(MSG_DEBUG, "nl80211: Use last_mgmt_freq=%d", 6187 drv->last_mgmt_freq); 6188 freq = drv->last_mgmt_freq; 6189 } 6190 return nl80211_send_frame_cmd(bss, freq, 0, 6191 data, data_len, NULL, 1, noack, 6192 1); 6193 } 6194 6195 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) { 6196 if (freq == 0) { 6197 wpa_printf(MSG_DEBUG, "nl80211: Use bss->freq=%d", 6198 bss->freq); 6199 freq = bss->freq; 6200 } 6201 return nl80211_send_frame_cmd(bss, freq, 6202 (int) freq == bss->freq ? 0 : 6203 wait_time, 6204 data, data_len, 6205 &drv->send_action_cookie, 6206 no_cck, noack, offchanok); 6207 } 6208 6209 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6210 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) { 6211 /* 6212 * Only one of the authentication frame types is encrypted. 6213 * In order for static WEP encryption to work properly (i.e., 6214 * to not encrypt the frame), we need to tell mac80211 about 6215 * the frames that must not be encrypted. 6216 */ 6217 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg); 6218 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction); 6219 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3) 6220 encrypt = 0; 6221 } 6222 6223 wpa_printf(MSG_DEBUG, "nl80211: send_mlme -> send_frame"); 6224 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 6225 noack, freq, no_cck, offchanok, 6226 wait_time); 6227} 6228 6229 6230static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble, 6231 int slot, int ht_opmode, int ap_isolate, 6232 int *basic_rates) 6233{ 6234 struct wpa_driver_nl80211_data *drv = bss->drv; 6235 struct nl_msg *msg; 6236 6237 msg = nlmsg_alloc(); 6238 if (!msg) 6239 return -ENOMEM; 6240 6241 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS); 6242 6243 if (cts >= 0) 6244 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts); 6245 if (preamble >= 0) 6246 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble); 6247 if (slot >= 0) 6248 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot); 6249 if (ht_opmode >= 0) 6250 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode); 6251 if (ap_isolate >= 0) 6252 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate); 6253 6254 if (basic_rates) { 6255 u8 rates[NL80211_MAX_SUPP_RATES]; 6256 u8 rates_len = 0; 6257 int i; 6258 6259 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; 6260 i++) 6261 rates[rates_len++] = basic_rates[i] / 5; 6262 6263 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates); 6264 } 6265 6266 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 6267 6268 return send_and_recv_msgs(drv, msg, NULL, NULL); 6269 nla_put_failure: 6270 nlmsg_free(msg); 6271 return -ENOBUFS; 6272} 6273 6274 6275static int wpa_driver_nl80211_set_acl(void *priv, 6276 struct hostapd_acl_params *params) 6277{ 6278 struct i802_bss *bss = priv; 6279 struct wpa_driver_nl80211_data *drv = bss->drv; 6280 struct nl_msg *msg; 6281 struct nlattr *acl; 6282 unsigned int i; 6283 int ret = 0; 6284 6285 if (!(drv->capa.max_acl_mac_addrs)) 6286 return -ENOTSUP; 6287 6288 if (params->num_mac_acl > drv->capa.max_acl_mac_addrs) 6289 return -ENOTSUP; 6290 6291 msg = nlmsg_alloc(); 6292 if (!msg) 6293 return -ENOMEM; 6294 6295 wpa_printf(MSG_DEBUG, "nl80211: Set %s ACL (num_mac_acl=%u)", 6296 params->acl_policy ? "Accept" : "Deny", params->num_mac_acl); 6297 6298 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_MAC_ACL); 6299 6300 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6301 6302 NLA_PUT_U32(msg, NL80211_ATTR_ACL_POLICY, params->acl_policy ? 6303 NL80211_ACL_POLICY_DENY_UNLESS_LISTED : 6304 NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED); 6305 6306 acl = nla_nest_start(msg, NL80211_ATTR_MAC_ADDRS); 6307 if (acl == NULL) 6308 goto nla_put_failure; 6309 6310 for (i = 0; i < params->num_mac_acl; i++) 6311 NLA_PUT(msg, i + 1, ETH_ALEN, params->mac_acl[i].addr); 6312 6313 nla_nest_end(msg, acl); 6314 6315 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6316 msg = NULL; 6317 if (ret) { 6318 wpa_printf(MSG_DEBUG, "nl80211: Failed to set MAC ACL: %d (%s)", 6319 ret, strerror(-ret)); 6320 } 6321 6322nla_put_failure: 6323 nlmsg_free(msg); 6324 6325 return ret; 6326} 6327 6328 6329static int wpa_driver_nl80211_set_ap(void *priv, 6330 struct wpa_driver_ap_params *params) 6331{ 6332 struct i802_bss *bss = priv; 6333 struct wpa_driver_nl80211_data *drv = bss->drv; 6334 struct nl_msg *msg; 6335 u8 cmd = NL80211_CMD_NEW_BEACON; 6336 int ret; 6337 int beacon_set; 6338 int ifindex = if_nametoindex(bss->ifname); 6339 int num_suites; 6340 u32 suites[10]; 6341 u32 ver; 6342 6343 beacon_set = bss->beacon_set; 6344 6345 msg = nlmsg_alloc(); 6346 if (!msg) 6347 return -ENOMEM; 6348 6349 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)", 6350 beacon_set); 6351 if (beacon_set) 6352 cmd = NL80211_CMD_SET_BEACON; 6353 6354 nl80211_cmd(drv, msg, 0, cmd); 6355 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon head", 6356 params->head, params->head_len); 6357 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head); 6358 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon tail", 6359 params->tail, params->tail_len); 6360 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail); 6361 wpa_printf(MSG_DEBUG, "nl80211: ifindex=%d", ifindex); 6362 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 6363 wpa_printf(MSG_DEBUG, "nl80211: beacon_int=%d", params->beacon_int); 6364 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int); 6365 wpa_printf(MSG_DEBUG, "nl80211: dtim_period=%d", params->dtim_period); 6366 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period); 6367 wpa_hexdump_ascii(MSG_DEBUG, "nl80211: ssid", 6368 params->ssid, params->ssid_len); 6369 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 6370 params->ssid); 6371 if (params->proberesp && params->proberesp_len) { 6372 wpa_hexdump(MSG_DEBUG, "nl80211: proberesp (offload)", 6373 params->proberesp, params->proberesp_len); 6374 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len, 6375 params->proberesp); 6376 } 6377 switch (params->hide_ssid) { 6378 case NO_SSID_HIDING: 6379 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID not in use"); 6380 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 6381 NL80211_HIDDEN_SSID_NOT_IN_USE); 6382 break; 6383 case HIDDEN_SSID_ZERO_LEN: 6384 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero len"); 6385 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 6386 NL80211_HIDDEN_SSID_ZERO_LEN); 6387 break; 6388 case HIDDEN_SSID_ZERO_CONTENTS: 6389 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero contents"); 6390 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 6391 NL80211_HIDDEN_SSID_ZERO_CONTENTS); 6392 break; 6393 } 6394 wpa_printf(MSG_DEBUG, "nl80211: privacy=%d", params->privacy); 6395 if (params->privacy) 6396 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 6397 wpa_printf(MSG_DEBUG, "nl80211: auth_algs=0x%x", params->auth_algs); 6398 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) == 6399 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) { 6400 /* Leave out the attribute */ 6401 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED) 6402 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 6403 NL80211_AUTHTYPE_SHARED_KEY); 6404 else 6405 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 6406 NL80211_AUTHTYPE_OPEN_SYSTEM); 6407 6408 wpa_printf(MSG_DEBUG, "nl80211: wpa_version=0x%x", params->wpa_version); 6409 ver = 0; 6410 if (params->wpa_version & WPA_PROTO_WPA) 6411 ver |= NL80211_WPA_VERSION_1; 6412 if (params->wpa_version & WPA_PROTO_RSN) 6413 ver |= NL80211_WPA_VERSION_2; 6414 if (ver) 6415 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 6416 6417 wpa_printf(MSG_DEBUG, "nl80211: key_mgmt_suites=0x%x", 6418 params->key_mgmt_suites); 6419 num_suites = 0; 6420 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X) 6421 suites[num_suites++] = WLAN_AKM_SUITE_8021X; 6422 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK) 6423 suites[num_suites++] = WLAN_AKM_SUITE_PSK; 6424 if (num_suites) { 6425 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES, 6426 num_suites * sizeof(u32), suites); 6427 } 6428 6429 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X && 6430 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)) 6431 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT); 6432 6433 wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x", 6434 params->pairwise_ciphers); 6435 num_suites = 0; 6436 if (params->pairwise_ciphers & WPA_CIPHER_CCMP) 6437 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP; 6438 if (params->pairwise_ciphers & WPA_CIPHER_GCMP) 6439 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP; 6440 if (params->pairwise_ciphers & WPA_CIPHER_TKIP) 6441 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP; 6442 if (params->pairwise_ciphers & WPA_CIPHER_WEP104) 6443 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104; 6444 if (params->pairwise_ciphers & WPA_CIPHER_WEP40) 6445 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40; 6446 if (num_suites) { 6447 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, 6448 num_suites * sizeof(u32), suites); 6449 } 6450 6451 wpa_printf(MSG_DEBUG, "nl80211: group_cipher=0x%x", 6452 params->group_cipher); 6453 switch (params->group_cipher) { 6454 case WPA_CIPHER_CCMP: 6455 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6456 WLAN_CIPHER_SUITE_CCMP); 6457 break; 6458 case WPA_CIPHER_GCMP: 6459 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6460 WLAN_CIPHER_SUITE_GCMP); 6461 break; 6462 case WPA_CIPHER_TKIP: 6463 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6464 WLAN_CIPHER_SUITE_TKIP); 6465 break; 6466 case WPA_CIPHER_WEP104: 6467 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6468 WLAN_CIPHER_SUITE_WEP104); 6469 break; 6470 case WPA_CIPHER_WEP40: 6471 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6472 WLAN_CIPHER_SUITE_WEP40); 6473 break; 6474 } 6475 6476 if (params->beacon_ies) { 6477 wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies", 6478 params->beacon_ies); 6479 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies), 6480 wpabuf_head(params->beacon_ies)); 6481 } 6482 if (params->proberesp_ies) { 6483 wpa_hexdump_buf(MSG_DEBUG, "nl80211: proberesp_ies", 6484 params->proberesp_ies); 6485 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, 6486 wpabuf_len(params->proberesp_ies), 6487 wpabuf_head(params->proberesp_ies)); 6488 } 6489 if (params->assocresp_ies) { 6490 wpa_hexdump_buf(MSG_DEBUG, "nl80211: assocresp_ies", 6491 params->assocresp_ies); 6492 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP, 6493 wpabuf_len(params->assocresp_ies), 6494 wpabuf_head(params->assocresp_ies)); 6495 } 6496 6497 if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) { 6498 wpa_printf(MSG_DEBUG, "nl80211: ap_max_inactivity=%d", 6499 params->ap_max_inactivity); 6500 NLA_PUT_U16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT, 6501 params->ap_max_inactivity); 6502 } 6503 6504 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6505 if (ret) { 6506 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)", 6507 ret, strerror(-ret)); 6508 } else { 6509 bss->beacon_set = 1; 6510 nl80211_set_bss(bss, params->cts_protect, params->preamble, 6511 params->short_slot_time, params->ht_opmode, 6512 params->isolate, params->basic_rates); 6513 } 6514 return ret; 6515 nla_put_failure: 6516 nlmsg_free(msg); 6517 return -ENOBUFS; 6518} 6519 6520 6521static int wpa_driver_nl80211_set_freq(struct i802_bss *bss, 6522 struct hostapd_freq_params *freq) 6523{ 6524 struct wpa_driver_nl80211_data *drv = bss->drv; 6525 struct nl_msg *msg; 6526 int ret; 6527 6528 wpa_printf(MSG_DEBUG, "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d," 6529 " bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)", 6530 freq->freq, freq->ht_enabled, freq->vht_enabled, 6531 freq->bandwidth, freq->center_freq1, freq->center_freq2); 6532 msg = nlmsg_alloc(); 6533 if (!msg) 6534 return -1; 6535 6536 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 6537 6538 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6539 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); 6540 if (freq->vht_enabled) { 6541 switch (freq->bandwidth) { 6542 case 20: 6543 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6544 NL80211_CHAN_WIDTH_20); 6545 break; 6546 case 40: 6547 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6548 NL80211_CHAN_WIDTH_40); 6549 break; 6550 case 80: 6551 if (freq->center_freq2) 6552 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6553 NL80211_CHAN_WIDTH_80P80); 6554 else 6555 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6556 NL80211_CHAN_WIDTH_80); 6557 break; 6558 case 160: 6559 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6560 NL80211_CHAN_WIDTH_160); 6561 break; 6562 default: 6563 return -1; 6564 } 6565 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); 6566 if (freq->center_freq2) 6567 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, 6568 freq->center_freq2); 6569 } else if (freq->ht_enabled) { 6570 switch (freq->sec_channel_offset) { 6571 case -1: 6572 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6573 NL80211_CHAN_HT40MINUS); 6574 break; 6575 case 1: 6576 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6577 NL80211_CHAN_HT40PLUS); 6578 break; 6579 default: 6580 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6581 NL80211_CHAN_HT20); 6582 break; 6583 } 6584 } 6585 6586 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6587 msg = NULL; 6588 if (ret == 0) { 6589 bss->freq = freq->freq; 6590 return 0; 6591 } 6592 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): " 6593 "%d (%s)", freq->freq, ret, strerror(-ret)); 6594nla_put_failure: 6595 nlmsg_free(msg); 6596 return -1; 6597} 6598 6599 6600static u32 sta_flags_nl80211(int flags) 6601{ 6602 u32 f = 0; 6603 6604 if (flags & WPA_STA_AUTHORIZED) 6605 f |= BIT(NL80211_STA_FLAG_AUTHORIZED); 6606 if (flags & WPA_STA_WMM) 6607 f |= BIT(NL80211_STA_FLAG_WME); 6608 if (flags & WPA_STA_SHORT_PREAMBLE) 6609 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); 6610 if (flags & WPA_STA_MFP) 6611 f |= BIT(NL80211_STA_FLAG_MFP); 6612 if (flags & WPA_STA_TDLS_PEER) 6613 f |= BIT(NL80211_STA_FLAG_TDLS_PEER); 6614 6615 return f; 6616} 6617 6618 6619static int wpa_driver_nl80211_sta_add(void *priv, 6620 struct hostapd_sta_add_params *params) 6621{ 6622 struct i802_bss *bss = priv; 6623 struct wpa_driver_nl80211_data *drv = bss->drv; 6624 struct nl_msg *msg; 6625 struct nl80211_sta_flag_update upd; 6626 int ret = -ENOBUFS; 6627 6628 if ((params->flags & WPA_STA_TDLS_PEER) && 6629 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 6630 return -EOPNOTSUPP; 6631 6632 msg = nlmsg_alloc(); 6633 if (!msg) 6634 return -ENOMEM; 6635 6636 wpa_printf(MSG_DEBUG, "nl80211: %s STA " MACSTR, 6637 params->set ? "Set" : "Add", MAC2STR(params->addr)); 6638 nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION : 6639 NL80211_CMD_NEW_STATION); 6640 6641 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 6642 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr); 6643 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len, 6644 params->supp_rates); 6645 wpa_hexdump(MSG_DEBUG, " * supported rates", params->supp_rates, 6646 params->supp_rates_len); 6647 if (!params->set) { 6648 if (params->aid) { 6649 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid); 6650 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid); 6651 } else { 6652 /* 6653 * cfg80211 validates that AID is non-zero, so we have 6654 * to make this a non-zero value for the TDLS case where 6655 * a dummy STA entry is used for now. 6656 */ 6657 wpa_printf(MSG_DEBUG, " * aid=1 (TDLS workaround)"); 6658 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, 1); 6659 } 6660 wpa_printf(MSG_DEBUG, " * listen_interval=%u", 6661 params->listen_interval); 6662 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, 6663 params->listen_interval); 6664 } else if (params->aid && (params->flags & WPA_STA_TDLS_PEER)) { 6665 wpa_printf(MSG_DEBUG, " * peer_aid=%u", params->aid); 6666 NLA_PUT_U16(msg, NL80211_ATTR_PEER_AID, params->aid); 6667 } 6668 if (params->ht_capabilities) { 6669 wpa_hexdump(MSG_DEBUG, " * ht_capabilities", 6670 (u8 *) params->ht_capabilities, 6671 sizeof(*params->ht_capabilities)); 6672 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, 6673 sizeof(*params->ht_capabilities), 6674 params->ht_capabilities); 6675 } 6676 6677 if (params->vht_capabilities) { 6678 wpa_hexdump(MSG_DEBUG, " * vht_capabilities", 6679 (u8 *) params->vht_capabilities, 6680 sizeof(*params->vht_capabilities)); 6681 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, 6682 sizeof(*params->vht_capabilities), 6683 params->vht_capabilities); 6684 } 6685 6686 wpa_printf(MSG_DEBUG, " * capability=0x%x", params->capability); 6687 NLA_PUT_U16(msg, NL80211_ATTR_STA_CAPABILITY, params->capability); 6688 6689 if (params->ext_capab) { 6690 wpa_hexdump(MSG_DEBUG, " * ext_capab", 6691 params->ext_capab, params->ext_capab_len); 6692 NLA_PUT(msg, NL80211_ATTR_STA_EXT_CAPABILITY, 6693 params->ext_capab_len, params->ext_capab); 6694 } 6695 6696 os_memset(&upd, 0, sizeof(upd)); 6697 upd.mask = sta_flags_nl80211(params->flags); 6698 upd.set = upd.mask; 6699 wpa_printf(MSG_DEBUG, " * flags set=0x%x mask=0x%x", 6700 upd.set, upd.mask); 6701 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 6702 6703 if (params->flags & WPA_STA_WMM) { 6704 struct nlattr *wme = nla_nest_start(msg, NL80211_ATTR_STA_WME); 6705 6706 if (!wme) 6707 goto nla_put_failure; 6708 6709 wpa_printf(MSG_DEBUG, " * qosinfo=0x%x", params->qosinfo); 6710 NLA_PUT_U8(msg, NL80211_STA_WME_UAPSD_QUEUES, 6711 params->qosinfo & WMM_QOSINFO_STA_AC_MASK); 6712 NLA_PUT_U8(msg, NL80211_STA_WME_MAX_SP, 6713 (params->qosinfo >> WMM_QOSINFO_STA_SP_SHIFT) & 6714 WMM_QOSINFO_STA_SP_MASK); 6715 nla_nest_end(msg, wme); 6716 } 6717 6718 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6719 msg = NULL; 6720 if (ret) 6721 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION " 6722 "result: %d (%s)", params->set ? "SET" : "NEW", ret, 6723 strerror(-ret)); 6724 if (ret == -EEXIST) 6725 ret = 0; 6726 nla_put_failure: 6727 nlmsg_free(msg); 6728 return ret; 6729} 6730 6731 6732static int wpa_driver_nl80211_sta_remove(struct i802_bss *bss, const u8 *addr) 6733{ 6734 struct wpa_driver_nl80211_data *drv = bss->drv; 6735 struct nl_msg *msg; 6736 int ret; 6737 6738 msg = nlmsg_alloc(); 6739 if (!msg) 6740 return -ENOMEM; 6741 6742 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 6743 6744 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 6745 if_nametoindex(bss->ifname)); 6746 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 6747 6748 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6749 wpa_printf(MSG_DEBUG, "nl80211: sta_remove -> DEL_STATION %s " MACSTR 6750 " --> %d (%s)", 6751 bss->ifname, MAC2STR(addr), ret, strerror(-ret)); 6752 if (ret == -ENOENT) 6753 return 0; 6754 return ret; 6755 nla_put_failure: 6756 nlmsg_free(msg); 6757 return -ENOBUFS; 6758} 6759 6760 6761static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, 6762 int ifidx) 6763{ 6764 struct nl_msg *msg; 6765 6766 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx); 6767 6768 /* stop listening for EAPOL on this interface */ 6769 del_ifidx(drv, ifidx); 6770 6771 msg = nlmsg_alloc(); 6772 if (!msg) 6773 goto nla_put_failure; 6774 6775 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 6776 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx); 6777 6778 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 6779 return; 6780 msg = NULL; 6781 nla_put_failure: 6782 nlmsg_free(msg); 6783 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx); 6784} 6785 6786 6787static const char * nl80211_iftype_str(enum nl80211_iftype mode) 6788{ 6789 switch (mode) { 6790 case NL80211_IFTYPE_ADHOC: 6791 return "ADHOC"; 6792 case NL80211_IFTYPE_STATION: 6793 return "STATION"; 6794 case NL80211_IFTYPE_AP: 6795 return "AP"; 6796 case NL80211_IFTYPE_AP_VLAN: 6797 return "AP_VLAN"; 6798 case NL80211_IFTYPE_WDS: 6799 return "WDS"; 6800 case NL80211_IFTYPE_MONITOR: 6801 return "MONITOR"; 6802 case NL80211_IFTYPE_MESH_POINT: 6803 return "MESH_POINT"; 6804 case NL80211_IFTYPE_P2P_CLIENT: 6805 return "P2P_CLIENT"; 6806 case NL80211_IFTYPE_P2P_GO: 6807 return "P2P_GO"; 6808 case NL80211_IFTYPE_P2P_DEVICE: 6809 return "P2P_DEVICE"; 6810 default: 6811 return "unknown"; 6812 } 6813} 6814 6815 6816static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv, 6817 const char *ifname, 6818 enum nl80211_iftype iftype, 6819 const u8 *addr, int wds, 6820 int (*handler)(struct nl_msg *, void *), 6821 void *arg) 6822{ 6823 struct nl_msg *msg; 6824 int ifidx; 6825 int ret = -ENOBUFS; 6826 6827 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)", 6828 iftype, nl80211_iftype_str(iftype)); 6829 6830 msg = nlmsg_alloc(); 6831 if (!msg) 6832 return -1; 6833 6834 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE); 6835 if (nl80211_set_iface_id(msg, &drv->first_bss) < 0) 6836 goto nla_put_failure; 6837 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname); 6838 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype); 6839 6840 if (iftype == NL80211_IFTYPE_MONITOR) { 6841 struct nlattr *flags; 6842 6843 flags = nla_nest_start(msg, NL80211_ATTR_MNTR_FLAGS); 6844 if (!flags) 6845 goto nla_put_failure; 6846 6847 NLA_PUT_FLAG(msg, NL80211_MNTR_FLAG_COOK_FRAMES); 6848 6849 nla_nest_end(msg, flags); 6850 } else if (wds) { 6851 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds); 6852 } 6853 6854 ret = send_and_recv_msgs(drv, msg, handler, arg); 6855 msg = NULL; 6856 if (ret) { 6857 nla_put_failure: 6858 nlmsg_free(msg); 6859 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)", 6860 ifname, ret, strerror(-ret)); 6861 return ret; 6862 } 6863 6864 if (iftype == NL80211_IFTYPE_P2P_DEVICE) 6865 return 0; 6866 6867 ifidx = if_nametoindex(ifname); 6868 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d", 6869 ifname, ifidx); 6870 6871 if (ifidx <= 0) 6872 return -1; 6873 6874 /* start listening for EAPOL on this interface */ 6875 add_ifidx(drv, ifidx); 6876 6877 if (addr && iftype != NL80211_IFTYPE_MONITOR && 6878 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) { 6879 nl80211_remove_iface(drv, ifidx); 6880 return -1; 6881 } 6882 6883 return ifidx; 6884} 6885 6886 6887static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv, 6888 const char *ifname, enum nl80211_iftype iftype, 6889 const u8 *addr, int wds, 6890 int (*handler)(struct nl_msg *, void *), 6891 void *arg) 6892{ 6893 int ret; 6894 6895 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds, handler, 6896 arg); 6897 6898 /* if error occurred and interface exists already */ 6899 if (ret == -ENFILE && if_nametoindex(ifname)) { 6900 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname); 6901 6902 /* Try to remove the interface that was already there. */ 6903 nl80211_remove_iface(drv, if_nametoindex(ifname)); 6904 6905 /* Try to create the interface again */ 6906 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, 6907 wds, handler, arg); 6908 } 6909 6910 if (ret >= 0 && is_p2p_net_interface(iftype)) 6911 nl80211_disable_11b_rates(drv, ret, 1); 6912 6913 return ret; 6914} 6915 6916 6917static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok) 6918{ 6919 struct ieee80211_hdr *hdr; 6920 u16 fc; 6921 union wpa_event_data event; 6922 6923 hdr = (struct ieee80211_hdr *) buf; 6924 fc = le_to_host16(hdr->frame_control); 6925 6926 os_memset(&event, 0, sizeof(event)); 6927 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 6928 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 6929 event.tx_status.dst = hdr->addr1; 6930 event.tx_status.data = buf; 6931 event.tx_status.data_len = len; 6932 event.tx_status.ack = ok; 6933 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event); 6934} 6935 6936 6937static void from_unknown_sta(struct wpa_driver_nl80211_data *drv, 6938 u8 *buf, size_t len) 6939{ 6940 struct ieee80211_hdr *hdr = (void *)buf; 6941 u16 fc; 6942 union wpa_event_data event; 6943 6944 if (len < sizeof(*hdr)) 6945 return; 6946 6947 fc = le_to_host16(hdr->frame_control); 6948 6949 os_memset(&event, 0, sizeof(event)); 6950 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len); 6951 event.rx_from_unknown.addr = hdr->addr2; 6952 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) == 6953 (WLAN_FC_FROMDS | WLAN_FC_TODS); 6954 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 6955} 6956 6957 6958static void handle_frame(struct wpa_driver_nl80211_data *drv, 6959 u8 *buf, size_t len, int datarate, int ssi_signal) 6960{ 6961 struct ieee80211_hdr *hdr; 6962 u16 fc; 6963 union wpa_event_data event; 6964 6965 hdr = (struct ieee80211_hdr *) buf; 6966 fc = le_to_host16(hdr->frame_control); 6967 6968 switch (WLAN_FC_GET_TYPE(fc)) { 6969 case WLAN_FC_TYPE_MGMT: 6970 os_memset(&event, 0, sizeof(event)); 6971 event.rx_mgmt.frame = buf; 6972 event.rx_mgmt.frame_len = len; 6973 event.rx_mgmt.datarate = datarate; 6974 event.rx_mgmt.ssi_signal = ssi_signal; 6975 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 6976 break; 6977 case WLAN_FC_TYPE_CTRL: 6978 /* can only get here with PS-Poll frames */ 6979 wpa_printf(MSG_DEBUG, "CTRL"); 6980 from_unknown_sta(drv, buf, len); 6981 break; 6982 case WLAN_FC_TYPE_DATA: 6983 from_unknown_sta(drv, buf, len); 6984 break; 6985 } 6986} 6987 6988 6989static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx) 6990{ 6991 struct wpa_driver_nl80211_data *drv = eloop_ctx; 6992 int len; 6993 unsigned char buf[3000]; 6994 struct ieee80211_radiotap_iterator iter; 6995 int ret; 6996 int datarate = 0, ssi_signal = 0; 6997 int injected = 0, failed = 0, rxflags = 0; 6998 6999 len = recv(sock, buf, sizeof(buf), 0); 7000 if (len < 0) { 7001 perror("recv"); 7002 return; 7003 } 7004 7005 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) { 7006 printf("received invalid radiotap frame\n"); 7007 return; 7008 } 7009 7010 while (1) { 7011 ret = ieee80211_radiotap_iterator_next(&iter); 7012 if (ret == -ENOENT) 7013 break; 7014 if (ret) { 7015 printf("received invalid radiotap frame (%d)\n", ret); 7016 return; 7017 } 7018 switch (iter.this_arg_index) { 7019 case IEEE80211_RADIOTAP_FLAGS: 7020 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS) 7021 len -= 4; 7022 break; 7023 case IEEE80211_RADIOTAP_RX_FLAGS: 7024 rxflags = 1; 7025 break; 7026 case IEEE80211_RADIOTAP_TX_FLAGS: 7027 injected = 1; 7028 failed = le_to_host16((*(uint16_t *) iter.this_arg)) & 7029 IEEE80211_RADIOTAP_F_TX_FAIL; 7030 break; 7031 case IEEE80211_RADIOTAP_DATA_RETRIES: 7032 break; 7033 case IEEE80211_RADIOTAP_CHANNEL: 7034 /* TODO: convert from freq/flags to channel number */ 7035 break; 7036 case IEEE80211_RADIOTAP_RATE: 7037 datarate = *iter.this_arg * 5; 7038 break; 7039 case IEEE80211_RADIOTAP_DBM_ANTSIGNAL: 7040 ssi_signal = (s8) *iter.this_arg; 7041 break; 7042 } 7043 } 7044 7045 if (rxflags && injected) 7046 return; 7047 7048 if (!injected) 7049 handle_frame(drv, buf + iter.max_length, 7050 len - iter.max_length, datarate, ssi_signal); 7051 else 7052 handle_tx_callback(drv->ctx, buf + iter.max_length, 7053 len - iter.max_length, !failed); 7054} 7055 7056 7057/* 7058 * we post-process the filter code later and rewrite 7059 * this to the offset to the last instruction 7060 */ 7061#define PASS 0xFF 7062#define FAIL 0xFE 7063 7064static struct sock_filter msock_filter_insns[] = { 7065 /* 7066 * do a little-endian load of the radiotap length field 7067 */ 7068 /* load lower byte into A */ 7069 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2), 7070 /* put it into X (== index register) */ 7071 BPF_STMT(BPF_MISC| BPF_TAX, 0), 7072 /* load upper byte into A */ 7073 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3), 7074 /* left-shift it by 8 */ 7075 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8), 7076 /* or with X */ 7077 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0), 7078 /* put result into X */ 7079 BPF_STMT(BPF_MISC| BPF_TAX, 0), 7080 7081 /* 7082 * Allow management frames through, this also gives us those 7083 * management frames that we sent ourselves with status 7084 */ 7085 /* load the lower byte of the IEEE 802.11 frame control field */ 7086 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7087 /* mask off frame type and version */ 7088 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF), 7089 /* accept frame if it's both 0, fall through otherwise */ 7090 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0), 7091 7092 /* 7093 * TODO: add a bit to radiotap RX flags that indicates 7094 * that the sending station is not associated, then 7095 * add a filter here that filters on our DA and that flag 7096 * to allow us to deauth frames to that bad station. 7097 * 7098 * For now allow all To DS data frames through. 7099 */ 7100 /* load the IEEE 802.11 frame control field */ 7101 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0), 7102 /* mask off frame type, version and DS status */ 7103 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03), 7104 /* accept frame if version 0, type 2 and To DS, fall through otherwise 7105 */ 7106 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0), 7107 7108#if 0 7109 /* 7110 * drop non-data frames 7111 */ 7112 /* load the lower byte of the frame control field */ 7113 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7114 /* mask off QoS bit */ 7115 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c), 7116 /* drop non-data frames */ 7117 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL), 7118#endif 7119 /* load the upper byte of the frame control field */ 7120 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1), 7121 /* mask off toDS/fromDS */ 7122 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03), 7123 /* accept WDS frames */ 7124 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0), 7125 7126 /* 7127 * add header length to index 7128 */ 7129 /* load the lower byte of the frame control field */ 7130 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7131 /* mask off QoS bit */ 7132 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80), 7133 /* right shift it by 6 to give 0 or 2 */ 7134 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6), 7135 /* add data frame header length */ 7136 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24), 7137 /* add index, was start of 802.11 header */ 7138 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), 7139 /* move to index, now start of LL header */ 7140 BPF_STMT(BPF_MISC | BPF_TAX, 0), 7141 7142 /* 7143 * Accept empty data frames, we use those for 7144 * polling activity. 7145 */ 7146 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0), 7147 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0), 7148 7149 /* 7150 * Accept EAPOL frames 7151 */ 7152 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0), 7153 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL), 7154 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4), 7155 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL), 7156 7157 /* keep these last two statements or change the code below */ 7158 /* return 0 == "DROP" */ 7159 BPF_STMT(BPF_RET | BPF_K, 0), 7160 /* return ~0 == "keep all" */ 7161 BPF_STMT(BPF_RET | BPF_K, ~0), 7162}; 7163 7164static struct sock_fprog msock_filter = { 7165 .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]), 7166 .filter = msock_filter_insns, 7167}; 7168 7169 7170static int add_monitor_filter(int s) 7171{ 7172 int idx; 7173 7174 /* rewrite all PASS/FAIL jump offsets */ 7175 for (idx = 0; idx < msock_filter.len; idx++) { 7176 struct sock_filter *insn = &msock_filter_insns[idx]; 7177 7178 if (BPF_CLASS(insn->code) == BPF_JMP) { 7179 if (insn->code == (BPF_JMP|BPF_JA)) { 7180 if (insn->k == PASS) 7181 insn->k = msock_filter.len - idx - 2; 7182 else if (insn->k == FAIL) 7183 insn->k = msock_filter.len - idx - 3; 7184 } 7185 7186 if (insn->jt == PASS) 7187 insn->jt = msock_filter.len - idx - 2; 7188 else if (insn->jt == FAIL) 7189 insn->jt = msock_filter.len - idx - 3; 7190 7191 if (insn->jf == PASS) 7192 insn->jf = msock_filter.len - idx - 2; 7193 else if (insn->jf == FAIL) 7194 insn->jf = msock_filter.len - idx - 3; 7195 } 7196 } 7197 7198 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER, 7199 &msock_filter, sizeof(msock_filter))) { 7200 perror("SO_ATTACH_FILTER"); 7201 return -1; 7202 } 7203 7204 return 0; 7205} 7206 7207 7208static void nl80211_remove_monitor_interface( 7209 struct wpa_driver_nl80211_data *drv) 7210{ 7211 drv->monitor_refcount--; 7212 if (drv->monitor_refcount > 0) 7213 return; 7214 7215 if (drv->monitor_ifidx >= 0) { 7216 nl80211_remove_iface(drv, drv->monitor_ifidx); 7217 drv->monitor_ifidx = -1; 7218 } 7219 if (drv->monitor_sock >= 0) { 7220 eloop_unregister_read_sock(drv->monitor_sock); 7221 close(drv->monitor_sock); 7222 drv->monitor_sock = -1; 7223 } 7224} 7225 7226 7227static int 7228nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv) 7229{ 7230 char buf[IFNAMSIZ]; 7231 struct sockaddr_ll ll; 7232 int optval; 7233 socklen_t optlen; 7234 7235 if (drv->monitor_ifidx >= 0) { 7236 drv->monitor_refcount++; 7237 return 0; 7238 } 7239 7240 if (os_strncmp(drv->first_bss.ifname, "p2p-", 4) == 0) { 7241 /* 7242 * P2P interface name is of the format p2p-%s-%d. For monitor 7243 * interface name corresponding to P2P GO, replace "p2p-" with 7244 * "mon-" to retain the same interface name length and to 7245 * indicate that it is a monitor interface. 7246 */ 7247 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss.ifname + 4); 7248 } else { 7249 /* Non-P2P interface with AP functionality. */ 7250 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss.ifname); 7251 } 7252 7253 buf[IFNAMSIZ - 1] = '\0'; 7254 7255 drv->monitor_ifidx = 7256 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL, 7257 0, NULL, NULL); 7258 7259 if (drv->monitor_ifidx == -EOPNOTSUPP) { 7260 /* 7261 * This is backward compatibility for a few versions of 7262 * the kernel only that didn't advertise the right 7263 * attributes for the only driver that then supported 7264 * AP mode w/o monitor -- ath6kl. 7265 */ 7266 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support " 7267 "monitor interface type - try to run without it"); 7268 drv->device_ap_sme = 1; 7269 } 7270 7271 if (drv->monitor_ifidx < 0) 7272 return -1; 7273 7274 if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1)) 7275 goto error; 7276 7277 memset(&ll, 0, sizeof(ll)); 7278 ll.sll_family = AF_PACKET; 7279 ll.sll_ifindex = drv->monitor_ifidx; 7280 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)); 7281 if (drv->monitor_sock < 0) { 7282 perror("socket[PF_PACKET,SOCK_RAW]"); 7283 goto error; 7284 } 7285 7286 if (add_monitor_filter(drv->monitor_sock)) { 7287 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor " 7288 "interface; do filtering in user space"); 7289 /* This works, but will cost in performance. */ 7290 } 7291 7292 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) { 7293 perror("monitor socket bind"); 7294 goto error; 7295 } 7296 7297 optlen = sizeof(optval); 7298 optval = 20; 7299 if (setsockopt 7300 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) { 7301 perror("Failed to set socket priority"); 7302 goto error; 7303 } 7304 7305 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read, 7306 drv, NULL)) { 7307 printf("Could not register monitor read socket\n"); 7308 goto error; 7309 } 7310 7311 return 0; 7312 error: 7313 nl80211_remove_monitor_interface(drv); 7314 return -1; 7315} 7316 7317 7318static int nl80211_setup_ap(struct i802_bss *bss) 7319{ 7320 struct wpa_driver_nl80211_data *drv = bss->drv; 7321 7322 wpa_printf(MSG_DEBUG, "nl80211: Setup AP - device_ap_sme=%d " 7323 "use_monitor=%d", drv->device_ap_sme, drv->use_monitor); 7324 7325 /* 7326 * Disable Probe Request reporting unless we need it in this way for 7327 * devices that include the AP SME, in the other case (unless using 7328 * monitor iface) we'll get it through the nl_mgmt socket instead. 7329 */ 7330 if (!drv->device_ap_sme) 7331 wpa_driver_nl80211_probe_req_report(bss, 0); 7332 7333 if (!drv->device_ap_sme && !drv->use_monitor) 7334 if (nl80211_mgmt_subscribe_ap(bss)) 7335 return -1; 7336 7337 if (drv->device_ap_sme && !drv->use_monitor) 7338 if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) 7339 return -1; 7340 7341 if (!drv->device_ap_sme && drv->use_monitor && 7342 nl80211_create_monitor_interface(drv) && 7343 !drv->device_ap_sme) 7344 return -1; 7345 7346#ifdef ANDROID_P2P 7347 if (drv->device_ap_sme && drv->use_monitor) 7348 if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) 7349 return -1; 7350 7351 if (drv->use_monitor && 7352 nl80211_create_monitor_interface(drv)) 7353 return -1; 7354#endif 7355 7356 if (drv->device_ap_sme && 7357 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) { 7358 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable " 7359 "Probe Request frame reporting in AP mode"); 7360 /* Try to survive without this */ 7361 } 7362 7363 return 0; 7364} 7365 7366 7367static void nl80211_teardown_ap(struct i802_bss *bss) 7368{ 7369 struct wpa_driver_nl80211_data *drv = bss->drv; 7370 7371 if (drv->device_ap_sme) { 7372 wpa_driver_nl80211_probe_req_report(bss, 0); 7373 if (!drv->use_monitor) 7374 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)"); 7375 } else if (drv->use_monitor) 7376 nl80211_remove_monitor_interface(drv); 7377 else 7378 nl80211_mgmt_unsubscribe(bss, "AP teardown"); 7379 7380 bss->beacon_set = 0; 7381} 7382 7383 7384static int nl80211_send_eapol_data(struct i802_bss *bss, 7385 const u8 *addr, const u8 *data, 7386 size_t data_len) 7387{ 7388 struct sockaddr_ll ll; 7389 int ret; 7390 7391 if (bss->drv->eapol_tx_sock < 0) { 7392 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL"); 7393 return -1; 7394 } 7395 7396 os_memset(&ll, 0, sizeof(ll)); 7397 ll.sll_family = AF_PACKET; 7398 ll.sll_ifindex = bss->ifindex; 7399 ll.sll_protocol = htons(ETH_P_PAE); 7400 ll.sll_halen = ETH_ALEN; 7401 os_memcpy(ll.sll_addr, addr, ETH_ALEN); 7402 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0, 7403 (struct sockaddr *) &ll, sizeof(ll)); 7404 if (ret < 0) 7405 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s", 7406 strerror(errno)); 7407 7408 return ret; 7409} 7410 7411 7412static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 7413 7414static int wpa_driver_nl80211_hapd_send_eapol( 7415 void *priv, const u8 *addr, const u8 *data, 7416 size_t data_len, int encrypt, const u8 *own_addr, u32 flags) 7417{ 7418 struct i802_bss *bss = priv; 7419 struct wpa_driver_nl80211_data *drv = bss->drv; 7420 struct ieee80211_hdr *hdr; 7421 size_t len; 7422 u8 *pos; 7423 int res; 7424 int qos = flags & WPA_STA_WMM; 7425#ifndef ANDROID_P2P 7426 if (drv->device_ap_sme || !drv->use_monitor) 7427#else 7428 if (drv->device_ap_sme && !drv->use_monitor) 7429#endif 7430 return nl80211_send_eapol_data(bss, addr, data, data_len); 7431 7432 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 + 7433 data_len; 7434 hdr = os_zalloc(len); 7435 if (hdr == NULL) { 7436 printf("malloc() failed for i802_send_data(len=%lu)\n", 7437 (unsigned long) len); 7438 return -1; 7439 } 7440 7441 hdr->frame_control = 7442 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA); 7443 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS); 7444 if (encrypt) 7445 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP); 7446 if (qos) { 7447 hdr->frame_control |= 7448 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4); 7449 } 7450 7451 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN); 7452 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 7453 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 7454 pos = (u8 *) (hdr + 1); 7455 7456 if (qos) { 7457 /* Set highest priority in QoS header */ 7458 pos[0] = 7; 7459 pos[1] = 0; 7460 pos += 2; 7461 } 7462 7463 memcpy(pos, rfc1042_header, sizeof(rfc1042_header)); 7464 pos += sizeof(rfc1042_header); 7465 WPA_PUT_BE16(pos, ETH_P_PAE); 7466 pos += 2; 7467 memcpy(pos, data, data_len); 7468 7469 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0, 7470 0, 0, 0, 0); 7471 if (res < 0) { 7472 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - " 7473 "failed: %d (%s)", 7474 (unsigned long) len, errno, strerror(errno)); 7475 } 7476 os_free(hdr); 7477 7478 return res; 7479} 7480 7481 7482static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr, 7483 int total_flags, 7484 int flags_or, int flags_and) 7485{ 7486 struct i802_bss *bss = priv; 7487 struct wpa_driver_nl80211_data *drv = bss->drv; 7488 struct nl_msg *msg; 7489 struct nlattr *flags; 7490 struct nl80211_sta_flag_update upd; 7491 7492 msg = nlmsg_alloc(); 7493 if (!msg) 7494 return -ENOMEM; 7495 7496 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 7497 7498 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 7499 if_nametoindex(bss->ifname)); 7500 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 7501 7502 /* 7503 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This 7504 * can be removed eventually. 7505 */ 7506 flags = nla_nest_start(msg, NL80211_ATTR_STA_FLAGS); 7507 if (!flags) 7508 goto nla_put_failure; 7509 if (total_flags & WPA_STA_AUTHORIZED) 7510 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_AUTHORIZED); 7511 7512 if (total_flags & WPA_STA_WMM) 7513 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_WME); 7514 7515 if (total_flags & WPA_STA_SHORT_PREAMBLE) 7516 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_SHORT_PREAMBLE); 7517 7518 if (total_flags & WPA_STA_MFP) 7519 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_MFP); 7520 7521 if (total_flags & WPA_STA_TDLS_PEER) 7522 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_TDLS_PEER); 7523 7524 nla_nest_end(msg, flags); 7525 7526 os_memset(&upd, 0, sizeof(upd)); 7527 upd.mask = sta_flags_nl80211(flags_or | ~flags_and); 7528 upd.set = sta_flags_nl80211(flags_or); 7529 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 7530 7531 return send_and_recv_msgs(drv, msg, NULL, NULL); 7532 nla_put_failure: 7533 nlmsg_free(msg); 7534 return -ENOBUFS; 7535} 7536 7537 7538static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv, 7539 struct wpa_driver_associate_params *params) 7540{ 7541 enum nl80211_iftype nlmode, old_mode; 7542 struct hostapd_freq_params freq = { 7543 .freq = params->freq, 7544 }; 7545 7546 if (params->p2p) { 7547 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P " 7548 "group (GO)"); 7549 nlmode = NL80211_IFTYPE_P2P_GO; 7550 } else 7551 nlmode = NL80211_IFTYPE_AP; 7552 7553 old_mode = drv->nlmode; 7554 if (wpa_driver_nl80211_set_mode(&drv->first_bss, nlmode)) { 7555 nl80211_remove_monitor_interface(drv); 7556 return -1; 7557 } 7558 7559 if (wpa_driver_nl80211_set_freq(&drv->first_bss, &freq)) { 7560 if (old_mode != nlmode) 7561 wpa_driver_nl80211_set_mode(&drv->first_bss, old_mode); 7562 nl80211_remove_monitor_interface(drv); 7563 return -1; 7564 } 7565 7566 return 0; 7567} 7568 7569 7570static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv) 7571{ 7572 struct nl_msg *msg; 7573 int ret = -1; 7574 7575 msg = nlmsg_alloc(); 7576 if (!msg) 7577 return -1; 7578 7579 nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS); 7580 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7581 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7582 msg = NULL; 7583 if (ret) { 7584 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d " 7585 "(%s)", ret, strerror(-ret)); 7586 goto nla_put_failure; 7587 } 7588 7589 ret = 0; 7590 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully"); 7591 7592nla_put_failure: 7593 if (wpa_driver_nl80211_set_mode(&drv->first_bss, 7594 NL80211_IFTYPE_STATION)) { 7595 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 7596 "station mode"); 7597 } 7598 7599 nlmsg_free(msg); 7600 return ret; 7601} 7602 7603 7604static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv, 7605 struct wpa_driver_associate_params *params) 7606{ 7607 struct nl_msg *msg; 7608 int ret = -1; 7609 int count = 0; 7610 7611 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex); 7612 7613 if (wpa_driver_nl80211_set_mode(&drv->first_bss, 7614 NL80211_IFTYPE_ADHOC)) { 7615 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 7616 "IBSS mode"); 7617 return -1; 7618 } 7619 7620retry: 7621 msg = nlmsg_alloc(); 7622 if (!msg) 7623 return -1; 7624 7625 nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS); 7626 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7627 7628 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid)) 7629 goto nla_put_failure; 7630 7631 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 7632 params->ssid, params->ssid_len); 7633 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7634 params->ssid); 7635 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 7636 drv->ssid_len = params->ssid_len; 7637 7638 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 7639 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 7640 7641 ret = nl80211_set_conn_keys(params, msg); 7642 if (ret) 7643 goto nla_put_failure; 7644 7645 if (params->bssid && params->fixed_bssid) { 7646 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR, 7647 MAC2STR(params->bssid)); 7648 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 7649 } 7650 7651 if (params->key_mgmt_suite == KEY_MGMT_802_1X || 7652 params->key_mgmt_suite == KEY_MGMT_PSK || 7653 params->key_mgmt_suite == KEY_MGMT_802_1X_SHA256 || 7654 params->key_mgmt_suite == KEY_MGMT_PSK_SHA256) { 7655 wpa_printf(MSG_DEBUG, " * control port"); 7656 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 7657 } 7658 7659 if (params->wpa_ie) { 7660 wpa_hexdump(MSG_DEBUG, 7661 " * Extra IEs for Beacon/Probe Response frames", 7662 params->wpa_ie, params->wpa_ie_len); 7663 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 7664 params->wpa_ie); 7665 } 7666 7667 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7668 msg = NULL; 7669 if (ret) { 7670 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)", 7671 ret, strerror(-ret)); 7672 count++; 7673 if (ret == -EALREADY && count == 1) { 7674 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after " 7675 "forced leave"); 7676 nl80211_leave_ibss(drv); 7677 nlmsg_free(msg); 7678 goto retry; 7679 } 7680 7681 goto nla_put_failure; 7682 } 7683 ret = 0; 7684 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully"); 7685 7686nla_put_failure: 7687 nlmsg_free(msg); 7688 return ret; 7689} 7690 7691 7692static int wpa_driver_nl80211_try_connect( 7693 struct wpa_driver_nl80211_data *drv, 7694 struct wpa_driver_associate_params *params) 7695{ 7696 struct nl_msg *msg; 7697 enum nl80211_auth_type type; 7698 int ret = 0; 7699 int algs; 7700 7701 msg = nlmsg_alloc(); 7702 if (!msg) 7703 return -1; 7704 7705 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex); 7706 nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT); 7707 7708 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7709 if (params->bssid) { 7710 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 7711 MAC2STR(params->bssid)); 7712 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 7713 } 7714 if (params->freq) { 7715 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 7716 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 7717 drv->assoc_freq = params->freq; 7718 } else 7719 drv->assoc_freq = 0; 7720 if (params->bg_scan_period >= 0) { 7721 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 7722 params->bg_scan_period); 7723 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 7724 params->bg_scan_period); 7725 } 7726 if (params->ssid) { 7727 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 7728 params->ssid, params->ssid_len); 7729 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7730 params->ssid); 7731 if (params->ssid_len > sizeof(drv->ssid)) 7732 goto nla_put_failure; 7733 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 7734 drv->ssid_len = params->ssid_len; 7735 } 7736 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 7737 if (params->wpa_ie) 7738 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 7739 params->wpa_ie); 7740 7741 algs = 0; 7742 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 7743 algs++; 7744 if (params->auth_alg & WPA_AUTH_ALG_SHARED) 7745 algs++; 7746 if (params->auth_alg & WPA_AUTH_ALG_LEAP) 7747 algs++; 7748 if (algs > 1) { 7749 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic " 7750 "selection"); 7751 goto skip_auth_type; 7752 } 7753 7754 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 7755 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 7756 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 7757 type = NL80211_AUTHTYPE_SHARED_KEY; 7758 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 7759 type = NL80211_AUTHTYPE_NETWORK_EAP; 7760 else if (params->auth_alg & WPA_AUTH_ALG_FT) 7761 type = NL80211_AUTHTYPE_FT; 7762 else 7763 goto nla_put_failure; 7764 7765 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 7766 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 7767 7768skip_auth_type: 7769 if (params->wpa_proto) { 7770 enum nl80211_wpa_versions ver = 0; 7771 7772 if (params->wpa_proto & WPA_PROTO_WPA) 7773 ver |= NL80211_WPA_VERSION_1; 7774 if (params->wpa_proto & WPA_PROTO_RSN) 7775 ver |= NL80211_WPA_VERSION_2; 7776 7777 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver); 7778 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 7779 } 7780 7781 if (params->pairwise_suite != CIPHER_NONE) { 7782 int cipher; 7783 7784 switch (params->pairwise_suite) { 7785 case CIPHER_SMS4: 7786 cipher = WLAN_CIPHER_SUITE_SMS4; 7787 break; 7788 case CIPHER_WEP40: 7789 cipher = WLAN_CIPHER_SUITE_WEP40; 7790 break; 7791 case CIPHER_WEP104: 7792 cipher = WLAN_CIPHER_SUITE_WEP104; 7793 break; 7794 case CIPHER_CCMP: 7795 cipher = WLAN_CIPHER_SUITE_CCMP; 7796 break; 7797 case CIPHER_GCMP: 7798 cipher = WLAN_CIPHER_SUITE_GCMP; 7799 break; 7800 case CIPHER_TKIP: 7801 default: 7802 cipher = WLAN_CIPHER_SUITE_TKIP; 7803 break; 7804 } 7805 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); 7806 } 7807 7808 if (params->group_suite != CIPHER_NONE) { 7809 int cipher; 7810 7811 switch (params->group_suite) { 7812 case CIPHER_SMS4: 7813 cipher = WLAN_CIPHER_SUITE_SMS4; 7814 break; 7815 case CIPHER_WEP40: 7816 cipher = WLAN_CIPHER_SUITE_WEP40; 7817 break; 7818 case CIPHER_WEP104: 7819 cipher = WLAN_CIPHER_SUITE_WEP104; 7820 break; 7821 case CIPHER_CCMP: 7822 cipher = WLAN_CIPHER_SUITE_CCMP; 7823 break; 7824 case CIPHER_GCMP: 7825 cipher = WLAN_CIPHER_SUITE_GCMP; 7826 break; 7827 case CIPHER_TKIP: 7828 default: 7829 cipher = WLAN_CIPHER_SUITE_TKIP; 7830 break; 7831 } 7832 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); 7833 } 7834 7835 if (params->key_mgmt_suite == KEY_MGMT_802_1X || 7836 params->key_mgmt_suite == KEY_MGMT_PSK || 7837 params->key_mgmt_suite == KEY_MGMT_FT_802_1X || 7838 params->key_mgmt_suite == KEY_MGMT_FT_PSK || 7839 params->key_mgmt_suite == KEY_MGMT_CCKM) { 7840 int mgmt = WLAN_AKM_SUITE_PSK; 7841 7842 switch (params->key_mgmt_suite) { 7843 case KEY_MGMT_CCKM: 7844 mgmt = WLAN_AKM_SUITE_CCKM; 7845 break; 7846 case KEY_MGMT_802_1X: 7847 mgmt = WLAN_AKM_SUITE_8021X; 7848 break; 7849 case KEY_MGMT_FT_802_1X: 7850 mgmt = WLAN_AKM_SUITE_FT_8021X; 7851 break; 7852 case KEY_MGMT_FT_PSK: 7853 mgmt = WLAN_AKM_SUITE_FT_PSK; 7854 break; 7855 case KEY_MGMT_PSK: 7856 default: 7857 mgmt = WLAN_AKM_SUITE_PSK; 7858 break; 7859 } 7860 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt); 7861 } 7862 7863#ifdef CONFIG_IEEE80211W 7864 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) 7865 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); 7866#endif /* CONFIG_IEEE80211W */ 7867 7868 if (params->disable_ht) 7869 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); 7870 7871 if (params->htcaps && params->htcaps_mask) { 7872 int sz = sizeof(struct ieee80211_ht_capabilities); 7873 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); 7874 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 7875 params->htcaps_mask); 7876 } 7877 7878#ifdef CONFIG_VHT_OVERRIDES 7879 if (params->disable_vht) { 7880 wpa_printf(MSG_DEBUG, " * VHT disabled"); 7881 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT); 7882 } 7883 7884 if (params->vhtcaps && params->vhtcaps_mask) { 7885 int sz = sizeof(struct ieee80211_vht_capabilities); 7886 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps); 7887 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 7888 params->vhtcaps_mask); 7889 } 7890#endif /* CONFIG_VHT_OVERRIDES */ 7891 7892 ret = nl80211_set_conn_keys(params, msg); 7893 if (ret) 7894 goto nla_put_failure; 7895 7896 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7897 msg = NULL; 7898 if (ret) { 7899 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d " 7900 "(%s)", ret, strerror(-ret)); 7901 goto nla_put_failure; 7902 } 7903 ret = 0; 7904 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully"); 7905 7906nla_put_failure: 7907 nlmsg_free(msg); 7908 return ret; 7909 7910} 7911 7912 7913static int wpa_driver_nl80211_connect( 7914 struct wpa_driver_nl80211_data *drv, 7915 struct wpa_driver_associate_params *params) 7916{ 7917 int ret = wpa_driver_nl80211_try_connect(drv, params); 7918 if (ret == -EALREADY) { 7919 /* 7920 * cfg80211 does not currently accept new connections if 7921 * we are already connected. As a workaround, force 7922 * disconnection and try again. 7923 */ 7924 wpa_printf(MSG_DEBUG, "nl80211: Explicitly " 7925 "disconnecting before reassociation " 7926 "attempt"); 7927 if (wpa_driver_nl80211_disconnect( 7928 drv, WLAN_REASON_PREV_AUTH_NOT_VALID)) 7929 return -1; 7930 ret = wpa_driver_nl80211_try_connect(drv, params); 7931 } 7932 return ret; 7933} 7934 7935 7936static int wpa_driver_nl80211_associate( 7937 void *priv, struct wpa_driver_associate_params *params) 7938{ 7939 struct i802_bss *bss = priv; 7940 struct wpa_driver_nl80211_data *drv = bss->drv; 7941 int ret = -1; 7942 struct nl_msg *msg; 7943 7944 if (params->mode == IEEE80211_MODE_AP) 7945 return wpa_driver_nl80211_ap(drv, params); 7946 7947 if (params->mode == IEEE80211_MODE_IBSS) 7948 return wpa_driver_nl80211_ibss(drv, params); 7949 7950 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) { 7951 enum nl80211_iftype nlmode = params->p2p ? 7952 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 7953 7954 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0) 7955 return -1; 7956 return wpa_driver_nl80211_connect(drv, params); 7957 } 7958 7959 nl80211_mark_disconnected(drv); 7960 7961 msg = nlmsg_alloc(); 7962 if (!msg) 7963 return -1; 7964 7965 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)", 7966 drv->ifindex); 7967 nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE); 7968 7969 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7970 if (params->bssid) { 7971 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 7972 MAC2STR(params->bssid)); 7973 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 7974 } 7975 if (params->freq) { 7976 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 7977 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 7978 drv->assoc_freq = params->freq; 7979 } else 7980 drv->assoc_freq = 0; 7981 if (params->bg_scan_period >= 0) { 7982 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 7983 params->bg_scan_period); 7984 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 7985 params->bg_scan_period); 7986 } 7987 if (params->ssid) { 7988 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 7989 params->ssid, params->ssid_len); 7990 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7991 params->ssid); 7992 if (params->ssid_len > sizeof(drv->ssid)) 7993 goto nla_put_failure; 7994 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 7995 drv->ssid_len = params->ssid_len; 7996 } 7997 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 7998 if (params->wpa_ie) 7999 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 8000 params->wpa_ie); 8001 8002 if (params->pairwise_suite != CIPHER_NONE) { 8003 int cipher; 8004 8005 switch (params->pairwise_suite) { 8006 case CIPHER_WEP40: 8007 cipher = WLAN_CIPHER_SUITE_WEP40; 8008 break; 8009 case CIPHER_WEP104: 8010 cipher = WLAN_CIPHER_SUITE_WEP104; 8011 break; 8012 case CIPHER_CCMP: 8013 cipher = WLAN_CIPHER_SUITE_CCMP; 8014 break; 8015 case CIPHER_GCMP: 8016 cipher = WLAN_CIPHER_SUITE_GCMP; 8017 break; 8018 case CIPHER_TKIP: 8019 default: 8020 cipher = WLAN_CIPHER_SUITE_TKIP; 8021 break; 8022 } 8023 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher); 8024 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); 8025 } 8026 8027 if (params->group_suite != CIPHER_NONE) { 8028 int cipher; 8029 8030 switch (params->group_suite) { 8031 case CIPHER_WEP40: 8032 cipher = WLAN_CIPHER_SUITE_WEP40; 8033 break; 8034 case CIPHER_WEP104: 8035 cipher = WLAN_CIPHER_SUITE_WEP104; 8036 break; 8037 case CIPHER_CCMP: 8038 cipher = WLAN_CIPHER_SUITE_CCMP; 8039 break; 8040 case CIPHER_GCMP: 8041 cipher = WLAN_CIPHER_SUITE_GCMP; 8042 break; 8043 case CIPHER_TKIP: 8044 default: 8045 cipher = WLAN_CIPHER_SUITE_TKIP; 8046 break; 8047 } 8048 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher); 8049 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); 8050 } 8051 8052#ifdef CONFIG_IEEE80211W 8053 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) 8054 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); 8055#endif /* CONFIG_IEEE80211W */ 8056 8057 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 8058 8059 if (params->prev_bssid) { 8060 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR, 8061 MAC2STR(params->prev_bssid)); 8062 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN, 8063 params->prev_bssid); 8064 } 8065 8066 if (params->disable_ht) 8067 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); 8068 8069 if (params->htcaps && params->htcaps_mask) { 8070 int sz = sizeof(struct ieee80211_ht_capabilities); 8071 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); 8072 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 8073 params->htcaps_mask); 8074 } 8075 8076#ifdef CONFIG_VHT_OVERRIDES 8077 if (params->disable_vht) { 8078 wpa_printf(MSG_DEBUG, " * VHT disabled"); 8079 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT); 8080 } 8081 8082 if (params->vhtcaps && params->vhtcaps_mask) { 8083 int sz = sizeof(struct ieee80211_vht_capabilities); 8084 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps); 8085 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 8086 params->vhtcaps_mask); 8087 } 8088#endif /* CONFIG_VHT_OVERRIDES */ 8089 8090 if (params->p2p) 8091 wpa_printf(MSG_DEBUG, " * P2P group"); 8092 8093 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8094 msg = NULL; 8095 if (ret) { 8096 wpa_dbg(drv->ctx, MSG_DEBUG, 8097 "nl80211: MLME command failed (assoc): ret=%d (%s)", 8098 ret, strerror(-ret)); 8099 nl80211_dump_scan(drv); 8100 goto nla_put_failure; 8101 } 8102 ret = 0; 8103 wpa_printf(MSG_DEBUG, "nl80211: Association request send " 8104 "successfully"); 8105 8106nla_put_failure: 8107 nlmsg_free(msg); 8108 return ret; 8109} 8110 8111 8112static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv, 8113 int ifindex, enum nl80211_iftype mode) 8114{ 8115 struct nl_msg *msg; 8116 int ret = -ENOBUFS; 8117 8118 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)", 8119 ifindex, mode, nl80211_iftype_str(mode)); 8120 8121 msg = nlmsg_alloc(); 8122 if (!msg) 8123 return -ENOMEM; 8124 8125 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE); 8126 if (nl80211_set_iface_id(msg, &drv->first_bss) < 0) 8127 goto nla_put_failure; 8128 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode); 8129 8130 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8131 msg = NULL; 8132 if (!ret) 8133 return 0; 8134nla_put_failure: 8135 nlmsg_free(msg); 8136 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:" 8137 " %d (%s)", ifindex, mode, ret, strerror(-ret)); 8138 return ret; 8139} 8140 8141 8142static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 8143 enum nl80211_iftype nlmode) 8144{ 8145 struct wpa_driver_nl80211_data *drv = bss->drv; 8146 int ret = -1; 8147 int i; 8148 int was_ap = is_ap_interface(drv->nlmode); 8149 int res; 8150 8151 res = nl80211_set_mode(drv, drv->ifindex, nlmode); 8152 if (res && nlmode == nl80211_get_ifmode(bss)) 8153 res = 0; 8154 8155 if (res == 0) { 8156 drv->nlmode = nlmode; 8157 ret = 0; 8158 goto done; 8159 } 8160 8161 if (res == -ENODEV) 8162 return -1; 8163 8164 if (nlmode == drv->nlmode) { 8165 wpa_printf(MSG_DEBUG, "nl80211: Interface already in " 8166 "requested mode - ignore error"); 8167 ret = 0; 8168 goto done; /* Already in the requested mode */ 8169 } 8170 8171 /* mac80211 doesn't allow mode changes while the device is up, so 8172 * take the device down, try to set the mode again, and bring the 8173 * device back up. 8174 */ 8175 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting " 8176 "interface down"); 8177 for (i = 0; i < 10; i++) { 8178 res = i802_set_iface_flags(bss, 0); 8179 if (res == -EACCES || res == -ENODEV) 8180 break; 8181 if (res == 0) { 8182 /* Try to set the mode again while the interface is 8183 * down */ 8184 ret = nl80211_set_mode(drv, drv->ifindex, nlmode); 8185 if (ret == -EACCES) 8186 break; 8187 res = i802_set_iface_flags(bss, 1); 8188 if (res && !ret) 8189 ret = -1; 8190 else if (ret != -EBUSY) 8191 break; 8192 } else 8193 wpa_printf(MSG_DEBUG, "nl80211: Failed to set " 8194 "interface down"); 8195 os_sleep(0, 100000); 8196 } 8197 8198 if (!ret) { 8199 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while " 8200 "interface is down"); 8201 drv->nlmode = nlmode; 8202 drv->ignore_if_down_event = 1; 8203 } 8204 8205done: 8206 if (ret) { 8207 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d " 8208 "from %d failed", nlmode, drv->nlmode); 8209 return ret; 8210 } 8211 8212 if (is_p2p_net_interface(nlmode)) 8213 nl80211_disable_11b_rates(drv, drv->ifindex, 1); 8214 else if (drv->disabled_11b_rates) 8215 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 8216 8217 if (is_ap_interface(nlmode)) { 8218 nl80211_mgmt_unsubscribe(bss, "start AP"); 8219 /* Setup additional AP mode functionality if needed */ 8220 if (nl80211_setup_ap(bss)) 8221 return -1; 8222 } else if (was_ap) { 8223 /* Remove additional AP mode functionality */ 8224 nl80211_teardown_ap(bss); 8225 } else { 8226 nl80211_mgmt_unsubscribe(bss, "mode change"); 8227 } 8228 8229 if (!bss->in_deinit && !is_ap_interface(nlmode) && 8230 nl80211_mgmt_subscribe_non_ap(bss) < 0) 8231 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action " 8232 "frame processing - ignore for now"); 8233 8234 return 0; 8235} 8236 8237 8238static int wpa_driver_nl80211_get_capa(void *priv, 8239 struct wpa_driver_capa *capa) 8240{ 8241 struct i802_bss *bss = priv; 8242 struct wpa_driver_nl80211_data *drv = bss->drv; 8243 if (!drv->has_capability) 8244 return -1; 8245 os_memcpy(capa, &drv->capa, sizeof(*capa)); 8246 if (drv->extended_capa && drv->extended_capa_mask) { 8247 capa->extended_capa = drv->extended_capa; 8248 capa->extended_capa_mask = drv->extended_capa_mask; 8249 capa->extended_capa_len = drv->extended_capa_len; 8250 } 8251 8252 if ((capa->flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) && 8253 !drv->allow_p2p_device) { 8254 wpa_printf(MSG_DEBUG, "nl80211: Do not indicate P2P_DEVICE support (p2p_device=1 driver param not specified)"); 8255 capa->flags &= ~WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 8256 } 8257 8258 return 0; 8259} 8260 8261 8262static int wpa_driver_nl80211_set_operstate(void *priv, int state) 8263{ 8264 struct i802_bss *bss = priv; 8265 struct wpa_driver_nl80211_data *drv = bss->drv; 8266 8267 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)", 8268 __func__, drv->operstate, state, state ? "UP" : "DORMANT"); 8269 drv->operstate = state; 8270 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1, 8271 state ? IF_OPER_UP : IF_OPER_DORMANT); 8272} 8273 8274 8275static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized) 8276{ 8277 struct i802_bss *bss = priv; 8278 struct wpa_driver_nl80211_data *drv = bss->drv; 8279 struct nl_msg *msg; 8280 struct nl80211_sta_flag_update upd; 8281 8282 wpa_printf(MSG_DEBUG, "nl80211: Set supplicant port %sauthorized for " 8283 MACSTR, authorized ? "" : "un", MAC2STR(drv->bssid)); 8284 8285 msg = nlmsg_alloc(); 8286 if (!msg) 8287 return -ENOMEM; 8288 8289 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8290 8291 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8292 if_nametoindex(bss->ifname)); 8293 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 8294 8295 os_memset(&upd, 0, sizeof(upd)); 8296 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED); 8297 if (authorized) 8298 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED); 8299 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 8300 8301 return send_and_recv_msgs(drv, msg, NULL, NULL); 8302 nla_put_failure: 8303 nlmsg_free(msg); 8304 return -ENOBUFS; 8305} 8306 8307 8308/* Set kernel driver on given frequency (MHz) */ 8309static int i802_set_freq(void *priv, struct hostapd_freq_params *freq) 8310{ 8311 struct i802_bss *bss = priv; 8312 return wpa_driver_nl80211_set_freq(bss, freq); 8313} 8314 8315 8316#if defined(HOSTAPD) || defined(CONFIG_AP) 8317 8318static inline int min_int(int a, int b) 8319{ 8320 if (a < b) 8321 return a; 8322 return b; 8323} 8324 8325 8326static int get_key_handler(struct nl_msg *msg, void *arg) 8327{ 8328 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 8329 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 8330 8331 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 8332 genlmsg_attrlen(gnlh, 0), NULL); 8333 8334 /* 8335 * TODO: validate the key index and mac address! 8336 * Otherwise, there's a race condition as soon as 8337 * the kernel starts sending key notifications. 8338 */ 8339 8340 if (tb[NL80211_ATTR_KEY_SEQ]) 8341 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]), 8342 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6)); 8343 return NL_SKIP; 8344} 8345 8346 8347static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr, 8348 int idx, u8 *seq) 8349{ 8350 struct i802_bss *bss = priv; 8351 struct wpa_driver_nl80211_data *drv = bss->drv; 8352 struct nl_msg *msg; 8353 8354 msg = nlmsg_alloc(); 8355 if (!msg) 8356 return -ENOMEM; 8357 8358 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY); 8359 8360 if (addr) 8361 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8362 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx); 8363 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface)); 8364 8365 memset(seq, 0, 6); 8366 8367 return send_and_recv_msgs(drv, msg, get_key_handler, seq); 8368 nla_put_failure: 8369 nlmsg_free(msg); 8370 return -ENOBUFS; 8371} 8372 8373 8374static int i802_set_rts(void *priv, int rts) 8375{ 8376 struct i802_bss *bss = priv; 8377 struct wpa_driver_nl80211_data *drv = bss->drv; 8378 struct nl_msg *msg; 8379 int ret = -ENOBUFS; 8380 u32 val; 8381 8382 msg = nlmsg_alloc(); 8383 if (!msg) 8384 return -ENOMEM; 8385 8386 if (rts >= 2347) 8387 val = (u32) -1; 8388 else 8389 val = rts; 8390 8391 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8392 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8393 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val); 8394 8395 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8396 msg = NULL; 8397 if (!ret) 8398 return 0; 8399nla_put_failure: 8400 nlmsg_free(msg); 8401 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: " 8402 "%d (%s)", rts, ret, strerror(-ret)); 8403 return ret; 8404} 8405 8406 8407static int i802_set_frag(void *priv, int frag) 8408{ 8409 struct i802_bss *bss = priv; 8410 struct wpa_driver_nl80211_data *drv = bss->drv; 8411 struct nl_msg *msg; 8412 int ret = -ENOBUFS; 8413 u32 val; 8414 8415 msg = nlmsg_alloc(); 8416 if (!msg) 8417 return -ENOMEM; 8418 8419 if (frag >= 2346) 8420 val = (u32) -1; 8421 else 8422 val = frag; 8423 8424 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8425 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8426 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val); 8427 8428 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8429 msg = NULL; 8430 if (!ret) 8431 return 0; 8432nla_put_failure: 8433 nlmsg_free(msg); 8434 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold " 8435 "%d: %d (%s)", frag, ret, strerror(-ret)); 8436 return ret; 8437} 8438 8439 8440static int i802_flush(void *priv) 8441{ 8442 struct i802_bss *bss = priv; 8443 struct wpa_driver_nl80211_data *drv = bss->drv; 8444 struct nl_msg *msg; 8445 int res; 8446 8447 msg = nlmsg_alloc(); 8448 if (!msg) 8449 return -1; 8450 8451 wpa_printf(MSG_DEBUG, "nl80211: flush -> DEL_STATION %s (all)", 8452 bss->ifname); 8453 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 8454 8455 /* 8456 * XXX: FIX! this needs to flush all VLANs too 8457 */ 8458 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8459 if_nametoindex(bss->ifname)); 8460 8461 res = send_and_recv_msgs(drv, msg, NULL, NULL); 8462 if (res) { 8463 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d " 8464 "(%s)", res, strerror(-res)); 8465 } 8466 return res; 8467 nla_put_failure: 8468 nlmsg_free(msg); 8469 return -ENOBUFS; 8470} 8471 8472#endif /* HOSTAPD || CONFIG_AP */ 8473 8474 8475static int get_sta_handler(struct nl_msg *msg, void *arg) 8476{ 8477 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 8478 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 8479 struct hostap_sta_driver_data *data = arg; 8480 struct nlattr *stats[NL80211_STA_INFO_MAX + 1]; 8481 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = { 8482 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 }, 8483 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 }, 8484 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 }, 8485 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 }, 8486 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 }, 8487 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 }, 8488 }; 8489 8490 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 8491 genlmsg_attrlen(gnlh, 0), NULL); 8492 8493 /* 8494 * TODO: validate the interface and mac address! 8495 * Otherwise, there's a race condition as soon as 8496 * the kernel starts sending station notifications. 8497 */ 8498 8499 if (!tb[NL80211_ATTR_STA_INFO]) { 8500 wpa_printf(MSG_DEBUG, "sta stats missing!"); 8501 return NL_SKIP; 8502 } 8503 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX, 8504 tb[NL80211_ATTR_STA_INFO], 8505 stats_policy)) { 8506 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!"); 8507 return NL_SKIP; 8508 } 8509 8510 if (stats[NL80211_STA_INFO_INACTIVE_TIME]) 8511 data->inactive_msec = 8512 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]); 8513 if (stats[NL80211_STA_INFO_RX_BYTES]) 8514 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]); 8515 if (stats[NL80211_STA_INFO_TX_BYTES]) 8516 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]); 8517 if (stats[NL80211_STA_INFO_RX_PACKETS]) 8518 data->rx_packets = 8519 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]); 8520 if (stats[NL80211_STA_INFO_TX_PACKETS]) 8521 data->tx_packets = 8522 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]); 8523 if (stats[NL80211_STA_INFO_TX_FAILED]) 8524 data->tx_retry_failed = 8525 nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]); 8526 8527 return NL_SKIP; 8528} 8529 8530static int i802_read_sta_data(struct i802_bss *bss, 8531 struct hostap_sta_driver_data *data, 8532 const u8 *addr) 8533{ 8534 struct wpa_driver_nl80211_data *drv = bss->drv; 8535 struct nl_msg *msg; 8536 8537 os_memset(data, 0, sizeof(*data)); 8538 msg = nlmsg_alloc(); 8539 if (!msg) 8540 return -ENOMEM; 8541 8542 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 8543 8544 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8545 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 8546 8547 return send_and_recv_msgs(drv, msg, get_sta_handler, data); 8548 nla_put_failure: 8549 nlmsg_free(msg); 8550 return -ENOBUFS; 8551} 8552 8553 8554#if defined(HOSTAPD) || defined(CONFIG_AP) 8555 8556static int i802_set_tx_queue_params(void *priv, int queue, int aifs, 8557 int cw_min, int cw_max, int burst_time) 8558{ 8559 struct i802_bss *bss = priv; 8560 struct wpa_driver_nl80211_data *drv = bss->drv; 8561 struct nl_msg *msg; 8562 struct nlattr *txq, *params; 8563 8564 msg = nlmsg_alloc(); 8565 if (!msg) 8566 return -1; 8567 8568 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8569 8570 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 8571 8572 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS); 8573 if (!txq) 8574 goto nla_put_failure; 8575 8576 /* We are only sending parameters for a single TXQ at a time */ 8577 params = nla_nest_start(msg, 1); 8578 if (!params) 8579 goto nla_put_failure; 8580 8581 switch (queue) { 8582 case 0: 8583 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO); 8584 break; 8585 case 1: 8586 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI); 8587 break; 8588 case 2: 8589 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE); 8590 break; 8591 case 3: 8592 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK); 8593 break; 8594 } 8595 /* Burst time is configured in units of 0.1 msec and TXOP parameter in 8596 * 32 usec, so need to convert the value here. */ 8597 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32); 8598 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min); 8599 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max); 8600 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs); 8601 8602 nla_nest_end(msg, params); 8603 8604 nla_nest_end(msg, txq); 8605 8606 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 8607 return 0; 8608 msg = NULL; 8609 nla_put_failure: 8610 nlmsg_free(msg); 8611 return -1; 8612} 8613 8614 8615static int i802_set_sta_vlan(struct i802_bss *bss, const u8 *addr, 8616 const char *ifname, int vlan_id) 8617{ 8618 struct wpa_driver_nl80211_data *drv = bss->drv; 8619 struct nl_msg *msg; 8620 int ret = -ENOBUFS; 8621 8622 msg = nlmsg_alloc(); 8623 if (!msg) 8624 return -ENOMEM; 8625 8626 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8627 8628 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8629 if_nametoindex(bss->ifname)); 8630 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8631 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN, 8632 if_nametoindex(ifname)); 8633 8634 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8635 msg = NULL; 8636 if (ret < 0) { 8637 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr=" 8638 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)", 8639 MAC2STR(addr), ifname, vlan_id, ret, 8640 strerror(-ret)); 8641 } 8642 nla_put_failure: 8643 nlmsg_free(msg); 8644 return ret; 8645} 8646 8647 8648static int i802_get_inact_sec(void *priv, const u8 *addr) 8649{ 8650 struct hostap_sta_driver_data data; 8651 int ret; 8652 8653 data.inactive_msec = (unsigned long) -1; 8654 ret = i802_read_sta_data(priv, &data, addr); 8655 if (ret || data.inactive_msec == (unsigned long) -1) 8656 return -1; 8657 return data.inactive_msec / 1000; 8658} 8659 8660 8661static int i802_sta_clear_stats(void *priv, const u8 *addr) 8662{ 8663#if 0 8664 /* TODO */ 8665#endif 8666 return 0; 8667} 8668 8669 8670static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, 8671 int reason) 8672{ 8673 struct i802_bss *bss = priv; 8674 struct wpa_driver_nl80211_data *drv = bss->drv; 8675 struct ieee80211_mgmt mgmt; 8676 8677 if (drv->device_ap_sme) 8678 return wpa_driver_nl80211_sta_remove(bss, addr); 8679 8680 memset(&mgmt, 0, sizeof(mgmt)); 8681 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 8682 WLAN_FC_STYPE_DEAUTH); 8683 memcpy(mgmt.da, addr, ETH_ALEN); 8684 memcpy(mgmt.sa, own_addr, ETH_ALEN); 8685 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 8686 mgmt.u.deauth.reason_code = host_to_le16(reason); 8687 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 8688 IEEE80211_HDRLEN + 8689 sizeof(mgmt.u.deauth), 0, 0, 0, 0, 8690 0); 8691} 8692 8693 8694static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr, 8695 int reason) 8696{ 8697 struct i802_bss *bss = priv; 8698 struct wpa_driver_nl80211_data *drv = bss->drv; 8699 struct ieee80211_mgmt mgmt; 8700 8701 if (drv->device_ap_sme) 8702 return wpa_driver_nl80211_sta_remove(bss, addr); 8703 8704 memset(&mgmt, 0, sizeof(mgmt)); 8705 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 8706 WLAN_FC_STYPE_DISASSOC); 8707 memcpy(mgmt.da, addr, ETH_ALEN); 8708 memcpy(mgmt.sa, own_addr, ETH_ALEN); 8709 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 8710 mgmt.u.disassoc.reason_code = host_to_le16(reason); 8711 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 8712 IEEE80211_HDRLEN + 8713 sizeof(mgmt.u.disassoc), 0, 0, 0, 0, 8714 0); 8715} 8716 8717#endif /* HOSTAPD || CONFIG_AP */ 8718 8719#ifdef HOSTAPD 8720 8721static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 8722{ 8723 int i; 8724 int *old; 8725 8726 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d", 8727 ifidx); 8728 for (i = 0; i < drv->num_if_indices; i++) { 8729 if (drv->if_indices[i] == 0) { 8730 drv->if_indices[i] = ifidx; 8731 return; 8732 } 8733 } 8734 8735 if (drv->if_indices != drv->default_if_indices) 8736 old = drv->if_indices; 8737 else 8738 old = NULL; 8739 8740 drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1, 8741 sizeof(int)); 8742 if (!drv->if_indices) { 8743 if (!old) 8744 drv->if_indices = drv->default_if_indices; 8745 else 8746 drv->if_indices = old; 8747 wpa_printf(MSG_ERROR, "Failed to reallocate memory for " 8748 "interfaces"); 8749 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx); 8750 return; 8751 } else if (!old) 8752 os_memcpy(drv->if_indices, drv->default_if_indices, 8753 sizeof(drv->default_if_indices)); 8754 drv->if_indices[drv->num_if_indices] = ifidx; 8755 drv->num_if_indices++; 8756} 8757 8758 8759static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 8760{ 8761 int i; 8762 8763 for (i = 0; i < drv->num_if_indices; i++) { 8764 if (drv->if_indices[i] == ifidx) { 8765 drv->if_indices[i] = 0; 8766 break; 8767 } 8768 } 8769} 8770 8771 8772static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 8773{ 8774 int i; 8775 8776 for (i = 0; i < drv->num_if_indices; i++) 8777 if (drv->if_indices[i] == ifidx) 8778 return 1; 8779 8780 return 0; 8781} 8782 8783 8784static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val, 8785 const char *bridge_ifname, char *ifname_wds) 8786{ 8787 struct i802_bss *bss = priv; 8788 struct wpa_driver_nl80211_data *drv = bss->drv; 8789 char name[IFNAMSIZ + 1]; 8790 8791 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid); 8792 if (ifname_wds) 8793 os_strlcpy(ifname_wds, name, IFNAMSIZ + 1); 8794 8795 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR 8796 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name); 8797 if (val) { 8798 if (!if_nametoindex(name)) { 8799 if (nl80211_create_iface(drv, name, 8800 NL80211_IFTYPE_AP_VLAN, 8801 bss->addr, 1, NULL, NULL) < 0) 8802 return -1; 8803 if (bridge_ifname && 8804 linux_br_add_if(drv->global->ioctl_sock, 8805 bridge_ifname, name) < 0) 8806 return -1; 8807 } 8808 if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) { 8809 wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA " 8810 "interface %s up", name); 8811 } 8812 return i802_set_sta_vlan(priv, addr, name, 0); 8813 } else { 8814 if (bridge_ifname) 8815 linux_br_del_if(drv->global->ioctl_sock, bridge_ifname, 8816 name); 8817 8818 i802_set_sta_vlan(priv, addr, bss->ifname, 0); 8819 return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN, 8820 name); 8821 } 8822} 8823 8824 8825static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx) 8826{ 8827 struct wpa_driver_nl80211_data *drv = eloop_ctx; 8828 struct sockaddr_ll lladdr; 8829 unsigned char buf[3000]; 8830 int len; 8831 socklen_t fromlen = sizeof(lladdr); 8832 8833 len = recvfrom(sock, buf, sizeof(buf), 0, 8834 (struct sockaddr *)&lladdr, &fromlen); 8835 if (len < 0) { 8836 perror("recv"); 8837 return; 8838 } 8839 8840 if (have_ifidx(drv, lladdr.sll_ifindex)) 8841 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len); 8842} 8843 8844 8845static int i802_check_bridge(struct wpa_driver_nl80211_data *drv, 8846 struct i802_bss *bss, 8847 const char *brname, const char *ifname) 8848{ 8849 int ifindex; 8850 char in_br[IFNAMSIZ]; 8851 8852 os_strlcpy(bss->brname, brname, IFNAMSIZ); 8853 ifindex = if_nametoindex(brname); 8854 if (ifindex == 0) { 8855 /* 8856 * Bridge was configured, but the bridge device does 8857 * not exist. Try to add it now. 8858 */ 8859 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) { 8860 wpa_printf(MSG_ERROR, "nl80211: Failed to add the " 8861 "bridge interface %s: %s", 8862 brname, strerror(errno)); 8863 return -1; 8864 } 8865 bss->added_bridge = 1; 8866 add_ifidx(drv, if_nametoindex(brname)); 8867 } 8868 8869 if (linux_br_get(in_br, ifname) == 0) { 8870 if (os_strcmp(in_br, brname) == 0) 8871 return 0; /* already in the bridge */ 8872 8873 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from " 8874 "bridge %s", ifname, in_br); 8875 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) < 8876 0) { 8877 wpa_printf(MSG_ERROR, "nl80211: Failed to " 8878 "remove interface %s from bridge " 8879 "%s: %s", 8880 ifname, brname, strerror(errno)); 8881 return -1; 8882 } 8883 } 8884 8885 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s", 8886 ifname, brname); 8887 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) { 8888 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s " 8889 "into bridge %s: %s", 8890 ifname, brname, strerror(errno)); 8891 return -1; 8892 } 8893 bss->added_if_into_bridge = 1; 8894 8895 return 0; 8896} 8897 8898 8899static void *i802_init(struct hostapd_data *hapd, 8900 struct wpa_init_params *params) 8901{ 8902 struct wpa_driver_nl80211_data *drv; 8903 struct i802_bss *bss; 8904 size_t i; 8905 char brname[IFNAMSIZ]; 8906 int ifindex, br_ifindex; 8907 int br_added = 0; 8908 8909 bss = wpa_driver_nl80211_init(hapd, params->ifname, 8910 params->global_priv); 8911 if (bss == NULL) 8912 return NULL; 8913 8914 drv = bss->drv; 8915 drv->nlmode = NL80211_IFTYPE_AP; 8916 drv->eapol_sock = -1; 8917 8918 if (linux_br_get(brname, params->ifname) == 0) { 8919 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s", 8920 params->ifname, brname); 8921 br_ifindex = if_nametoindex(brname); 8922 } else { 8923 brname[0] = '\0'; 8924 br_ifindex = 0; 8925 } 8926 8927 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int); 8928 drv->if_indices = drv->default_if_indices; 8929 for (i = 0; i < params->num_bridge; i++) { 8930 if (params->bridge[i]) { 8931 ifindex = if_nametoindex(params->bridge[i]); 8932 if (ifindex) 8933 add_ifidx(drv, ifindex); 8934 if (ifindex == br_ifindex) 8935 br_added = 1; 8936 } 8937 } 8938 if (!br_added && br_ifindex && 8939 (params->num_bridge == 0 || !params->bridge[0])) 8940 add_ifidx(drv, br_ifindex); 8941 8942 /* start listening for EAPOL on the default AP interface */ 8943 add_ifidx(drv, drv->ifindex); 8944 8945 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0)) 8946 goto failed; 8947 8948 if (params->bssid) { 8949 if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 8950 params->bssid)) 8951 goto failed; 8952 } 8953 8954 if (wpa_driver_nl80211_set_mode(bss, drv->nlmode)) { 8955 wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s " 8956 "into AP mode", bss->ifname); 8957 goto failed; 8958 } 8959 8960 if (params->num_bridge && params->bridge[0] && 8961 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0) 8962 goto failed; 8963 8964 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) 8965 goto failed; 8966 8967 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE)); 8968 if (drv->eapol_sock < 0) { 8969 perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)"); 8970 goto failed; 8971 } 8972 8973 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL)) 8974 { 8975 printf("Could not register read socket for eapol\n"); 8976 goto failed; 8977 } 8978 8979 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 8980 params->own_addr)) 8981 goto failed; 8982 8983 memcpy(bss->addr, params->own_addr, ETH_ALEN); 8984 8985 return bss; 8986 8987failed: 8988 wpa_driver_nl80211_deinit(bss); 8989 return NULL; 8990} 8991 8992 8993static void i802_deinit(void *priv) 8994{ 8995 struct i802_bss *bss = priv; 8996 wpa_driver_nl80211_deinit(bss); 8997} 8998 8999#endif /* HOSTAPD */ 9000 9001 9002static enum nl80211_iftype wpa_driver_nl80211_if_type( 9003 enum wpa_driver_if_type type) 9004{ 9005 switch (type) { 9006 case WPA_IF_STATION: 9007 return NL80211_IFTYPE_STATION; 9008 case WPA_IF_P2P_CLIENT: 9009 case WPA_IF_P2P_GROUP: 9010 return NL80211_IFTYPE_P2P_CLIENT; 9011 case WPA_IF_AP_VLAN: 9012 return NL80211_IFTYPE_AP_VLAN; 9013 case WPA_IF_AP_BSS: 9014 return NL80211_IFTYPE_AP; 9015 case WPA_IF_P2P_GO: 9016 return NL80211_IFTYPE_P2P_GO; 9017 case WPA_IF_P2P_DEVICE: 9018 return NL80211_IFTYPE_P2P_DEVICE; 9019 } 9020 return -1; 9021} 9022 9023 9024#ifdef CONFIG_P2P 9025 9026static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr) 9027{ 9028 struct wpa_driver_nl80211_data *drv; 9029 dl_list_for_each(drv, &global->interfaces, 9030 struct wpa_driver_nl80211_data, list) { 9031 if (os_memcmp(addr, drv->first_bss.addr, ETH_ALEN) == 0) 9032 return 1; 9033 } 9034 return 0; 9035} 9036 9037 9038static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv, 9039 u8 *new_addr) 9040{ 9041 unsigned int idx; 9042 9043 if (!drv->global) 9044 return -1; 9045 9046 os_memcpy(new_addr, drv->first_bss.addr, ETH_ALEN); 9047 for (idx = 0; idx < 64; idx++) { 9048 new_addr[0] = drv->first_bss.addr[0] | 0x02; 9049 new_addr[0] ^= idx << 2; 9050 if (!nl80211_addr_in_use(drv->global, new_addr)) 9051 break; 9052 } 9053 if (idx == 64) 9054 return -1; 9055 9056 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address " 9057 MACSTR, MAC2STR(new_addr)); 9058 9059 return 0; 9060} 9061 9062#endif /* CONFIG_P2P */ 9063 9064 9065struct wdev_info { 9066 u64 wdev_id; 9067 int wdev_id_set; 9068 u8 macaddr[ETH_ALEN]; 9069}; 9070 9071static int nl80211_wdev_handler(struct nl_msg *msg, void *arg) 9072{ 9073 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9074 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9075 struct wdev_info *wi = arg; 9076 9077 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9078 genlmsg_attrlen(gnlh, 0), NULL); 9079 if (tb[NL80211_ATTR_WDEV]) { 9080 wi->wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 9081 wi->wdev_id_set = 1; 9082 } 9083 9084 if (tb[NL80211_ATTR_MAC]) 9085 os_memcpy(wi->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 9086 ETH_ALEN); 9087 9088 return NL_SKIP; 9089} 9090 9091 9092static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type, 9093 const char *ifname, const u8 *addr, 9094 void *bss_ctx, void **drv_priv, 9095 char *force_ifname, u8 *if_addr, 9096 const char *bridge) 9097{ 9098 enum nl80211_iftype nlmode; 9099 struct i802_bss *bss = priv; 9100 struct wpa_driver_nl80211_data *drv = bss->drv; 9101 int ifidx; 9102#ifdef HOSTAPD 9103 struct i802_bss *new_bss = NULL; 9104 9105 if (type == WPA_IF_AP_BSS) { 9106 new_bss = os_zalloc(sizeof(*new_bss)); 9107 if (new_bss == NULL) 9108 return -1; 9109 } 9110#endif /* HOSTAPD */ 9111 9112 if (addr) 9113 os_memcpy(if_addr, addr, ETH_ALEN); 9114 nlmode = wpa_driver_nl80211_if_type(type); 9115 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { 9116 struct wdev_info p2pdev_info; 9117 9118 os_memset(&p2pdev_info, 0, sizeof(p2pdev_info)); 9119 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 9120 0, nl80211_wdev_handler, 9121 &p2pdev_info); 9122 if (!p2pdev_info.wdev_id_set || ifidx != 0) { 9123 wpa_printf(MSG_ERROR, "nl80211: Failed to create a P2P Device interface %s", 9124 ifname); 9125 return -1; 9126 } 9127 9128 drv->global->if_add_wdevid = p2pdev_info.wdev_id; 9129 drv->global->if_add_wdevid_set = p2pdev_info.wdev_id_set; 9130 if (!is_zero_ether_addr(p2pdev_info.macaddr)) 9131 os_memcpy(if_addr, p2pdev_info.macaddr, ETH_ALEN); 9132 wpa_printf(MSG_DEBUG, "nl80211: New P2P Device interface %s (0x%llx) created", 9133 ifname, 9134 (long long unsigned int) p2pdev_info.wdev_id); 9135 } else { 9136 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 9137 0, NULL, NULL); 9138 if (ifidx < 0) { 9139#ifdef HOSTAPD 9140 os_free(new_bss); 9141#endif /* HOSTAPD */ 9142 return -1; 9143 } 9144 } 9145 9146 if (!addr) { 9147 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 9148 os_memcpy(if_addr, bss->addr, ETH_ALEN); 9149 else if (linux_get_ifhwaddr(drv->global->ioctl_sock, 9150 bss->ifname, if_addr) < 0) { 9151 nl80211_remove_iface(drv, ifidx); 9152 return -1; 9153 } 9154 } 9155 9156#ifdef CONFIG_P2P 9157 if (!addr && 9158 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP || 9159 type == WPA_IF_P2P_GO)) { 9160 /* Enforce unique P2P Interface Address */ 9161 u8 new_addr[ETH_ALEN]; 9162 9163 if (linux_get_ifhwaddr(drv->global->ioctl_sock, ifname, 9164 new_addr) < 0) { 9165 nl80211_remove_iface(drv, ifidx); 9166 return -1; 9167 } 9168 if (nl80211_addr_in_use(drv->global, new_addr)) { 9169 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address " 9170 "for P2P group interface"); 9171 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) { 9172 nl80211_remove_iface(drv, ifidx); 9173 return -1; 9174 } 9175 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 9176 new_addr) < 0) { 9177 nl80211_remove_iface(drv, ifidx); 9178 return -1; 9179 } 9180 } 9181 os_memcpy(if_addr, new_addr, ETH_ALEN); 9182 } 9183#endif /* CONFIG_P2P */ 9184 9185#ifdef HOSTAPD 9186 if (bridge && 9187 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) { 9188 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new " 9189 "interface %s to a bridge %s", ifname, bridge); 9190 nl80211_remove_iface(drv, ifidx); 9191 os_free(new_bss); 9192 return -1; 9193 } 9194 9195 if (type == WPA_IF_AP_BSS) { 9196 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1)) 9197 { 9198 nl80211_remove_iface(drv, ifidx); 9199 os_free(new_bss); 9200 return -1; 9201 } 9202 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ); 9203 os_memcpy(new_bss->addr, if_addr, ETH_ALEN); 9204 new_bss->ifindex = ifidx; 9205 new_bss->drv = drv; 9206 new_bss->next = drv->first_bss.next; 9207 new_bss->freq = drv->first_bss.freq; 9208 new_bss->ctx = bss_ctx; 9209 drv->first_bss.next = new_bss; 9210 if (drv_priv) 9211 *drv_priv = new_bss; 9212 nl80211_init_bss(new_bss); 9213 9214 /* Subscribe management frames for this WPA_IF_AP_BSS */ 9215 if (nl80211_setup_ap(new_bss)) 9216 return -1; 9217 } 9218#endif /* HOSTAPD */ 9219 9220 if (drv->global) 9221 drv->global->if_add_ifindex = ifidx; 9222 9223 return 0; 9224} 9225 9226 9227static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 9228 enum wpa_driver_if_type type, 9229 const char *ifname) 9230{ 9231 struct wpa_driver_nl80211_data *drv = bss->drv; 9232 int ifindex = if_nametoindex(ifname); 9233 9234 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d", 9235 __func__, type, ifname, ifindex); 9236 if (ifindex <= 0) 9237 return -1; 9238 9239 nl80211_remove_iface(drv, ifindex); 9240 9241#ifdef HOSTAPD 9242 if (type != WPA_IF_AP_BSS) 9243 return 0; 9244 9245 if (bss->added_if_into_bridge) { 9246 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 9247 bss->ifname) < 0) 9248 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 9249 "interface %s from bridge %s: %s", 9250 bss->ifname, bss->brname, strerror(errno)); 9251 } 9252 if (bss->added_bridge) { 9253 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 9254 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 9255 "bridge %s: %s", 9256 bss->brname, strerror(errno)); 9257 } 9258 9259 if (bss != &drv->first_bss) { 9260 struct i802_bss *tbss; 9261 9262 for (tbss = &drv->first_bss; tbss; tbss = tbss->next) { 9263 if (tbss->next == bss) { 9264 tbss->next = bss->next; 9265 /* Unsubscribe management frames */ 9266 nl80211_teardown_ap(bss); 9267 nl80211_destroy_bss(bss); 9268 os_free(bss); 9269 bss = NULL; 9270 break; 9271 } 9272 } 9273 if (bss) 9274 wpa_printf(MSG_INFO, "nl80211: %s - could not find " 9275 "BSS %p in the list", __func__, bss); 9276 } 9277#endif /* HOSTAPD */ 9278 9279 return 0; 9280} 9281 9282 9283static int cookie_handler(struct nl_msg *msg, void *arg) 9284{ 9285 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9286 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9287 u64 *cookie = arg; 9288 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9289 genlmsg_attrlen(gnlh, 0), NULL); 9290 if (tb[NL80211_ATTR_COOKIE]) 9291 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 9292 return NL_SKIP; 9293} 9294 9295 9296static int nl80211_send_frame_cmd(struct i802_bss *bss, 9297 unsigned int freq, unsigned int wait, 9298 const u8 *buf, size_t buf_len, 9299 u64 *cookie_out, int no_cck, int no_ack, 9300 int offchanok) 9301{ 9302 struct wpa_driver_nl80211_data *drv = bss->drv; 9303 struct nl_msg *msg; 9304 u64 cookie; 9305 int ret = -1; 9306 9307 msg = nlmsg_alloc(); 9308 if (!msg) 9309 return -1; 9310 9311 wpa_printf(MSG_MSGDUMP, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d " 9312 "no_ack=%d offchanok=%d", 9313 freq, wait, no_cck, no_ack, offchanok); 9314 wpa_hexdump(MSG_MSGDUMP, "CMD_FRAME", buf, buf_len); 9315 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME); 9316 9317 if (nl80211_set_iface_id(msg, bss) < 0) 9318 goto nla_put_failure; 9319 if (freq) 9320 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 9321 if (wait) 9322 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait); 9323 if (offchanok && (drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX)) 9324 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK); 9325 if (no_cck) 9326 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 9327 if (no_ack) 9328 NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK); 9329 9330 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf); 9331 9332 cookie = 0; 9333 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 9334 msg = NULL; 9335 if (ret) { 9336 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d " 9337 "(%s) (freq=%u wait=%u)", ret, strerror(-ret), 9338 freq, wait); 9339 goto nla_put_failure; 9340 } 9341 wpa_printf(MSG_MSGDUMP, "nl80211: Frame TX command accepted%s; " 9342 "cookie 0x%llx", no_ack ? " (no ACK)" : "", 9343 (long long unsigned int) cookie); 9344 9345 if (cookie_out) 9346 *cookie_out = no_ack ? (u64) -1 : cookie; 9347 9348nla_put_failure: 9349 nlmsg_free(msg); 9350 return ret; 9351} 9352 9353 9354static int wpa_driver_nl80211_send_action(struct i802_bss *bss, 9355 unsigned int freq, 9356 unsigned int wait_time, 9357 const u8 *dst, const u8 *src, 9358 const u8 *bssid, 9359 const u8 *data, size_t data_len, 9360 int no_cck) 9361{ 9362 struct wpa_driver_nl80211_data *drv = bss->drv; 9363 int ret = -1; 9364 u8 *buf; 9365 struct ieee80211_hdr *hdr; 9366 9367 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, " 9368 "freq=%u MHz wait=%d ms no_cck=%d)", 9369 drv->ifindex, freq, wait_time, no_cck); 9370 9371 buf = os_zalloc(24 + data_len); 9372 if (buf == NULL) 9373 return ret; 9374 os_memcpy(buf + 24, data, data_len); 9375 hdr = (struct ieee80211_hdr *) buf; 9376 hdr->frame_control = 9377 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION); 9378 os_memcpy(hdr->addr1, dst, ETH_ALEN); 9379 os_memcpy(hdr->addr2, src, ETH_ALEN); 9380 os_memcpy(hdr->addr3, bssid, ETH_ALEN); 9381 9382 if (is_ap_interface(drv->nlmode) && 9383 (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) || 9384 (int) freq == bss->freq || drv->device_ap_sme || 9385 !drv->use_monitor)) 9386 ret = wpa_driver_nl80211_send_mlme(bss, buf, 24 + data_len, 9387 0, freq, no_cck, 1, 9388 wait_time); 9389 else 9390 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf, 9391 24 + data_len, 9392 &drv->send_action_cookie, 9393 no_cck, 0, 1); 9394 9395 os_free(buf); 9396 return ret; 9397} 9398 9399 9400static void wpa_driver_nl80211_send_action_cancel_wait(void *priv) 9401{ 9402 struct i802_bss *bss = priv; 9403 struct wpa_driver_nl80211_data *drv = bss->drv; 9404 struct nl_msg *msg; 9405 int ret; 9406 9407 msg = nlmsg_alloc(); 9408 if (!msg) 9409 return; 9410 9411 wpa_printf(MSG_DEBUG, "nl80211: Cancel TX frame wait: cookie=0x%llx", 9412 (long long unsigned int) drv->send_action_cookie); 9413 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL); 9414 9415 if (nl80211_set_iface_id(msg, bss) < 0) 9416 goto nla_put_failure; 9417 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie); 9418 9419 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9420 msg = NULL; 9421 if (ret) 9422 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d " 9423 "(%s)", ret, strerror(-ret)); 9424 9425 nla_put_failure: 9426 nlmsg_free(msg); 9427} 9428 9429 9430static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq, 9431 unsigned int duration) 9432{ 9433 struct i802_bss *bss = priv; 9434 struct wpa_driver_nl80211_data *drv = bss->drv; 9435 struct nl_msg *msg; 9436 int ret; 9437 u64 cookie; 9438 9439 msg = nlmsg_alloc(); 9440 if (!msg) 9441 return -1; 9442 9443 nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL); 9444 9445 if (nl80211_set_iface_id(msg, bss) < 0) 9446 goto nla_put_failure; 9447 9448 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 9449 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); 9450 9451 cookie = 0; 9452 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 9453 msg = NULL; 9454 if (ret == 0) { 9455 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie " 9456 "0x%llx for freq=%u MHz duration=%u", 9457 (long long unsigned int) cookie, freq, duration); 9458 drv->remain_on_chan_cookie = cookie; 9459 drv->pending_remain_on_chan = 1; 9460 return 0; 9461 } 9462 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel " 9463 "(freq=%d duration=%u): %d (%s)", 9464 freq, duration, ret, strerror(-ret)); 9465nla_put_failure: 9466 nlmsg_free(msg); 9467 return -1; 9468} 9469 9470 9471static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv) 9472{ 9473 struct i802_bss *bss = priv; 9474 struct wpa_driver_nl80211_data *drv = bss->drv; 9475 struct nl_msg *msg; 9476 int ret; 9477 9478 if (!drv->pending_remain_on_chan) { 9479 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel " 9480 "to cancel"); 9481 return -1; 9482 } 9483 9484 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie " 9485 "0x%llx", 9486 (long long unsigned int) drv->remain_on_chan_cookie); 9487 9488 msg = nlmsg_alloc(); 9489 if (!msg) 9490 return -1; 9491 9492 nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL); 9493 9494 if (nl80211_set_iface_id(msg, bss) < 0) 9495 goto nla_put_failure; 9496 9497 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie); 9498 9499 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9500 msg = NULL; 9501 if (ret == 0) 9502 return 0; 9503 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: " 9504 "%d (%s)", ret, strerror(-ret)); 9505nla_put_failure: 9506 nlmsg_free(msg); 9507 return -1; 9508} 9509 9510 9511static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report) 9512{ 9513 struct wpa_driver_nl80211_data *drv = bss->drv; 9514 9515 if (!report) { 9516 if (bss->nl_preq && drv->device_ap_sme && 9517 is_ap_interface(drv->nlmode)) { 9518 /* 9519 * Do not disable Probe Request reporting that was 9520 * enabled in nl80211_setup_ap(). 9521 */ 9522 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of " 9523 "Probe Request reporting nl_preq=%p while " 9524 "in AP mode", bss->nl_preq); 9525 } else if (bss->nl_preq) { 9526 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request " 9527 "reporting nl_preq=%p", bss->nl_preq); 9528 eloop_unregister_read_sock( 9529 nl_socket_get_fd(bss->nl_preq)); 9530 nl_destroy_handles(&bss->nl_preq); 9531 } 9532 return 0; 9533 } 9534 9535 if (bss->nl_preq) { 9536 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting " 9537 "already on! nl_preq=%p", bss->nl_preq); 9538 return 0; 9539 } 9540 9541 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq"); 9542 if (bss->nl_preq == NULL) 9543 return -1; 9544 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request " 9545 "reporting nl_preq=%p", bss->nl_preq); 9546 9547 if (nl80211_register_frame(bss, bss->nl_preq, 9548 (WLAN_FC_TYPE_MGMT << 2) | 9549 (WLAN_FC_STYPE_PROBE_REQ << 4), 9550 NULL, 0) < 0) 9551 goto out_err; 9552 9553 eloop_register_read_sock(nl_socket_get_fd(bss->nl_preq), 9554 wpa_driver_nl80211_event_receive, bss->nl_cb, 9555 bss->nl_preq); 9556 9557 return 0; 9558 9559 out_err: 9560 nl_destroy_handles(&bss->nl_preq); 9561 return -1; 9562} 9563 9564 9565static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 9566 int ifindex, int disabled) 9567{ 9568 struct nl_msg *msg; 9569 struct nlattr *bands, *band; 9570 int ret; 9571 9572 msg = nlmsg_alloc(); 9573 if (!msg) 9574 return -1; 9575 9576 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK); 9577 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 9578 9579 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES); 9580 if (!bands) 9581 goto nla_put_failure; 9582 9583 /* 9584 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything 9585 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS 9586 * rates. All 5 GHz rates are left enabled. 9587 */ 9588 band = nla_nest_start(msg, NL80211_BAND_2GHZ); 9589 if (!band) 9590 goto nla_put_failure; 9591 if (disabled) { 9592 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8, 9593 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 9594 } 9595 nla_nest_end(msg, band); 9596 9597 nla_nest_end(msg, bands); 9598 9599 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9600 msg = NULL; 9601 if (ret) { 9602 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d " 9603 "(%s)", ret, strerror(-ret)); 9604 } else 9605 drv->disabled_11b_rates = disabled; 9606 9607 return ret; 9608 9609nla_put_failure: 9610 nlmsg_free(msg); 9611 return -1; 9612} 9613 9614 9615static int wpa_driver_nl80211_deinit_ap(void *priv) 9616{ 9617 struct i802_bss *bss = priv; 9618 struct wpa_driver_nl80211_data *drv = bss->drv; 9619 if (!is_ap_interface(drv->nlmode)) 9620 return -1; 9621 wpa_driver_nl80211_del_beacon(drv); 9622 9623 /* 9624 * If the P2P GO interface was dynamically added, then it is 9625 * possible that the interface change to station is not possible. 9626 */ 9627 if (drv->nlmode == NL80211_IFTYPE_P2P_GO && bss->if_dynamic) 9628 return 0; 9629 9630 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 9631} 9632 9633 9634static int wpa_driver_nl80211_stop_ap(void *priv) 9635{ 9636 struct i802_bss *bss = priv; 9637 struct wpa_driver_nl80211_data *drv = bss->drv; 9638 if (!is_ap_interface(drv->nlmode)) 9639 return -1; 9640 wpa_driver_nl80211_del_beacon(drv); 9641 bss->beacon_set = 0; 9642 return 0; 9643} 9644 9645 9646static int wpa_driver_nl80211_deinit_p2p_cli(void *priv) 9647{ 9648 struct i802_bss *bss = priv; 9649 struct wpa_driver_nl80211_data *drv = bss->drv; 9650 if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT) 9651 return -1; 9652 9653 /* 9654 * If the P2P Client interface was dynamically added, then it is 9655 * possible that the interface change to station is not possible. 9656 */ 9657 if (bss->if_dynamic) 9658 return 0; 9659 9660 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 9661} 9662 9663 9664static void wpa_driver_nl80211_resume(void *priv) 9665{ 9666 struct i802_bss *bss = priv; 9667 9668 if (i802_set_iface_flags(bss, 1)) 9669 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on resume event"); 9670} 9671 9672 9673static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap, 9674 const u8 *ies, size_t ies_len) 9675{ 9676 struct i802_bss *bss = priv; 9677 struct wpa_driver_nl80211_data *drv = bss->drv; 9678 int ret; 9679 u8 *data, *pos; 9680 size_t data_len; 9681 const u8 *own_addr = bss->addr; 9682 9683 if (action != 1) { 9684 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action " 9685 "action %d", action); 9686 return -1; 9687 } 9688 9689 /* 9690 * Action frame payload: 9691 * Category[1] = 6 (Fast BSS Transition) 9692 * Action[1] = 1 (Fast BSS Transition Request) 9693 * STA Address 9694 * Target AP Address 9695 * FT IEs 9696 */ 9697 9698 data_len = 2 + 2 * ETH_ALEN + ies_len; 9699 data = os_malloc(data_len); 9700 if (data == NULL) 9701 return -1; 9702 pos = data; 9703 *pos++ = 0x06; /* FT Action category */ 9704 *pos++ = action; 9705 os_memcpy(pos, own_addr, ETH_ALEN); 9706 pos += ETH_ALEN; 9707 os_memcpy(pos, target_ap, ETH_ALEN); 9708 pos += ETH_ALEN; 9709 os_memcpy(pos, ies, ies_len); 9710 9711 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0, 9712 drv->bssid, own_addr, drv->bssid, 9713 data, data_len, 0); 9714 os_free(data); 9715 9716 return ret; 9717} 9718 9719 9720static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis) 9721{ 9722 struct i802_bss *bss = priv; 9723 struct wpa_driver_nl80211_data *drv = bss->drv; 9724 struct nl_msg *msg; 9725 struct nlattr *cqm; 9726 int ret = -1; 9727 9728 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d " 9729 "hysteresis=%d", threshold, hysteresis); 9730 9731 msg = nlmsg_alloc(); 9732 if (!msg) 9733 return -1; 9734 9735 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM); 9736 9737 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 9738 9739 cqm = nla_nest_start(msg, NL80211_ATTR_CQM); 9740 if (cqm == NULL) 9741 goto nla_put_failure; 9742 9743 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THOLD, threshold); 9744 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_HYST, hysteresis); 9745 nla_nest_end(msg, cqm); 9746 9747 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9748 msg = NULL; 9749 9750nla_put_failure: 9751 nlmsg_free(msg); 9752 return ret; 9753} 9754 9755 9756/* Converts nl80211_chan_width to a common format */ 9757static enum chan_width convert2width(int width) 9758{ 9759 switch (width) { 9760 case NL80211_CHAN_WIDTH_20_NOHT: 9761 return CHAN_WIDTH_20_NOHT; 9762 case NL80211_CHAN_WIDTH_20: 9763 return CHAN_WIDTH_20; 9764 case NL80211_CHAN_WIDTH_40: 9765 return CHAN_WIDTH_40; 9766 case NL80211_CHAN_WIDTH_80: 9767 return CHAN_WIDTH_80; 9768 case NL80211_CHAN_WIDTH_80P80: 9769 return CHAN_WIDTH_80P80; 9770 case NL80211_CHAN_WIDTH_160: 9771 return CHAN_WIDTH_160; 9772 } 9773 return CHAN_WIDTH_UNKNOWN; 9774} 9775 9776 9777static int get_channel_width(struct nl_msg *msg, void *arg) 9778{ 9779 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9780 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9781 struct wpa_signal_info *sig_change = arg; 9782 9783 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9784 genlmsg_attrlen(gnlh, 0), NULL); 9785 9786 sig_change->center_frq1 = -1; 9787 sig_change->center_frq2 = -1; 9788 sig_change->chanwidth = CHAN_WIDTH_UNKNOWN; 9789 9790 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) { 9791 sig_change->chanwidth = convert2width( 9792 nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH])); 9793 if (tb[NL80211_ATTR_CENTER_FREQ1]) 9794 sig_change->center_frq1 = 9795 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); 9796 if (tb[NL80211_ATTR_CENTER_FREQ2]) 9797 sig_change->center_frq2 = 9798 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); 9799 } 9800 9801 return NL_SKIP; 9802} 9803 9804 9805static int nl80211_get_channel_width(struct wpa_driver_nl80211_data *drv, 9806 struct wpa_signal_info *sig) 9807{ 9808 struct nl_msg *msg; 9809 9810 msg = nlmsg_alloc(); 9811 if (!msg) 9812 return -ENOMEM; 9813 9814 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_INTERFACE); 9815 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9816 9817 return send_and_recv_msgs(drv, msg, get_channel_width, sig); 9818 9819nla_put_failure: 9820 nlmsg_free(msg); 9821 return -ENOBUFS; 9822} 9823 9824 9825static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si) 9826{ 9827 struct i802_bss *bss = priv; 9828 struct wpa_driver_nl80211_data *drv = bss->drv; 9829 int res; 9830 9831 os_memset(si, 0, sizeof(*si)); 9832 res = nl80211_get_link_signal(drv, si); 9833 if (res != 0) 9834 return res; 9835 9836 res = nl80211_get_channel_width(drv, si); 9837 if (res != 0) 9838 return res; 9839 9840 return nl80211_get_link_noise(drv, si); 9841} 9842 9843 9844static int wpa_driver_nl80211_shared_freq(void *priv) 9845{ 9846 struct i802_bss *bss = priv; 9847 struct wpa_driver_nl80211_data *drv = bss->drv; 9848 struct wpa_driver_nl80211_data *driver; 9849 int freq = 0; 9850 9851 /* 9852 * If the same PHY is in connected state with some other interface, 9853 * then retrieve the assoc freq. 9854 */ 9855 wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s", 9856 drv->phyname); 9857 9858 dl_list_for_each(driver, &drv->global->interfaces, 9859 struct wpa_driver_nl80211_data, list) { 9860 if (drv == driver || 9861 os_strcmp(drv->phyname, driver->phyname) != 0 || 9862#ifdef ANDROID_P2P 9863 (!driver->associated && !is_ap_interface(driver->nlmode))) 9864#else 9865 !driver->associated) 9866#endif 9867 continue; 9868 9869 wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s " 9870 MACSTR, 9871 driver->phyname, driver->first_bss.ifname, 9872 MAC2STR(driver->first_bss.addr)); 9873 if (is_ap_interface(driver->nlmode)) 9874 freq = driver->first_bss.freq; 9875 else 9876 freq = nl80211_get_assoc_freq(driver); 9877 wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d", 9878 drv->phyname, freq); 9879 } 9880 9881 if (!freq) 9882 wpa_printf(MSG_DEBUG, "nl80211: No shared interface for " 9883 "PHY (%s) in associated state", drv->phyname); 9884 9885 return freq; 9886} 9887 9888 9889static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len, 9890 int encrypt) 9891{ 9892 struct i802_bss *bss = priv; 9893 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0, 9894 0, 0, 0, 0); 9895} 9896 9897 9898static int nl80211_set_param(void *priv, const char *param) 9899{ 9900 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param); 9901 if (param == NULL) 9902 return 0; 9903 9904#ifdef CONFIG_P2P 9905 if (os_strstr(param, "use_p2p_group_interface=1")) { 9906 struct i802_bss *bss = priv; 9907 struct wpa_driver_nl80211_data *drv = bss->drv; 9908 9909 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 9910 "interface"); 9911 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 9912 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 9913 } 9914 9915 if (os_strstr(param, "p2p_device=1")) { 9916 struct i802_bss *bss = priv; 9917 struct wpa_driver_nl80211_data *drv = bss->drv; 9918 drv->allow_p2p_device = 1; 9919 } 9920 9921#ifdef ANDROID_P2P 9922 if(os_strstr(param, "use_multi_chan_concurrent=1")) { 9923 struct i802_bss *bss = priv; 9924 struct wpa_driver_nl80211_data *drv = bss->drv; 9925 wpa_printf(MSG_DEBUG, "nl80211: Use Multi channel " 9926 "concurrency"); 9927 drv->capa.num_multichan_concurrent = 2; 9928 } 9929#endif 9930#endif /* CONFIG_P2P */ 9931 9932 return 0; 9933} 9934 9935 9936static void * nl80211_global_init(void) 9937{ 9938 struct nl80211_global *global; 9939 struct netlink_config *cfg; 9940 9941 global = os_zalloc(sizeof(*global)); 9942 if (global == NULL) 9943 return NULL; 9944 global->ioctl_sock = -1; 9945 dl_list_init(&global->interfaces); 9946 global->if_add_ifindex = -1; 9947 9948 cfg = os_zalloc(sizeof(*cfg)); 9949 if (cfg == NULL) 9950 goto err; 9951 9952 cfg->ctx = global; 9953 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink; 9954 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink; 9955 global->netlink = netlink_init(cfg); 9956 if (global->netlink == NULL) { 9957 os_free(cfg); 9958 goto err; 9959 } 9960 9961 if (wpa_driver_nl80211_init_nl_global(global) < 0) 9962 goto err; 9963 9964 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0); 9965 if (global->ioctl_sock < 0) { 9966 perror("socket(PF_INET,SOCK_DGRAM)"); 9967 goto err; 9968 } 9969 9970 return global; 9971 9972err: 9973 nl80211_global_deinit(global); 9974 return NULL; 9975} 9976 9977 9978static void nl80211_global_deinit(void *priv) 9979{ 9980 struct nl80211_global *global = priv; 9981 if (global == NULL) 9982 return; 9983 if (!dl_list_empty(&global->interfaces)) { 9984 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at " 9985 "nl80211_global_deinit", 9986 dl_list_len(&global->interfaces)); 9987 } 9988 9989 if (global->netlink) 9990 netlink_deinit(global->netlink); 9991 9992 nl_destroy_handles(&global->nl); 9993 9994 if (global->nl_event) { 9995 eloop_unregister_read_sock( 9996 nl_socket_get_fd(global->nl_event)); 9997 nl_destroy_handles(&global->nl_event); 9998 } 9999 10000 nl_cb_put(global->nl_cb); 10001 10002 if (global->ioctl_sock >= 0) 10003 close(global->ioctl_sock); 10004 10005 os_free(global); 10006} 10007 10008 10009static const char * nl80211_get_radio_name(void *priv) 10010{ 10011 struct i802_bss *bss = priv; 10012 struct wpa_driver_nl80211_data *drv = bss->drv; 10013 return drv->phyname; 10014} 10015 10016 10017static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid, 10018 const u8 *pmkid) 10019{ 10020 struct nl_msg *msg; 10021 10022 msg = nlmsg_alloc(); 10023 if (!msg) 10024 return -ENOMEM; 10025 10026 nl80211_cmd(bss->drv, msg, 0, cmd); 10027 10028 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 10029 if (pmkid) 10030 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid); 10031 if (bssid) 10032 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); 10033 10034 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 10035 nla_put_failure: 10036 nlmsg_free(msg); 10037 return -ENOBUFS; 10038} 10039 10040 10041static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 10042{ 10043 struct i802_bss *bss = priv; 10044 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid)); 10045 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid); 10046} 10047 10048 10049static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 10050{ 10051 struct i802_bss *bss = priv; 10052 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR, 10053 MAC2STR(bssid)); 10054 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid); 10055} 10056 10057 10058static int nl80211_flush_pmkid(void *priv) 10059{ 10060 struct i802_bss *bss = priv; 10061 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs"); 10062 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL); 10063} 10064 10065 10066static void clean_survey_results(struct survey_results *survey_results) 10067{ 10068 struct freq_survey *survey, *tmp; 10069 10070 if (dl_list_empty(&survey_results->survey_list)) 10071 return; 10072 10073 dl_list_for_each_safe(survey, tmp, &survey_results->survey_list, 10074 struct freq_survey, list) { 10075 dl_list_del(&survey->list); 10076 os_free(survey); 10077 } 10078} 10079 10080 10081static void add_survey(struct nlattr **sinfo, u32 ifidx, 10082 struct dl_list *survey_list) 10083{ 10084 struct freq_survey *survey; 10085 10086 survey = os_zalloc(sizeof(struct freq_survey)); 10087 if (!survey) 10088 return; 10089 10090 survey->ifidx = ifidx; 10091 survey->freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); 10092 survey->filled = 0; 10093 10094 if (sinfo[NL80211_SURVEY_INFO_NOISE]) { 10095 survey->nf = (int8_t) 10096 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 10097 survey->filled |= SURVEY_HAS_NF; 10098 } 10099 10100 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]) { 10101 survey->channel_time = 10102 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]); 10103 survey->filled |= SURVEY_HAS_CHAN_TIME; 10104 } 10105 10106 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]) { 10107 survey->channel_time_busy = 10108 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]); 10109 survey->filled |= SURVEY_HAS_CHAN_TIME_BUSY; 10110 } 10111 10112 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]) { 10113 survey->channel_time_rx = 10114 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]); 10115 survey->filled |= SURVEY_HAS_CHAN_TIME_RX; 10116 } 10117 10118 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]) { 10119 survey->channel_time_tx = 10120 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]); 10121 survey->filled |= SURVEY_HAS_CHAN_TIME_TX; 10122 } 10123 10124 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)", 10125 survey->freq, 10126 survey->nf, 10127 (unsigned long int) survey->channel_time, 10128 (unsigned long int) survey->channel_time_busy, 10129 (unsigned long int) survey->channel_time_tx, 10130 (unsigned long int) survey->channel_time_rx, 10131 survey->filled); 10132 10133 dl_list_add_tail(survey_list, &survey->list); 10134} 10135 10136 10137static int check_survey_ok(struct nlattr **sinfo, u32 surveyed_freq, 10138 unsigned int freq_filter) 10139{ 10140 if (!freq_filter) 10141 return 1; 10142 10143 return freq_filter == surveyed_freq; 10144} 10145 10146 10147static int survey_handler(struct nl_msg *msg, void *arg) 10148{ 10149 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 10150 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 10151 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 10152 struct survey_results *survey_results; 10153 u32 surveyed_freq = 0; 10154 u32 ifidx; 10155 10156 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 10157 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 10158 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 10159 }; 10160 10161 survey_results = (struct survey_results *) arg; 10162 10163 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 10164 genlmsg_attrlen(gnlh, 0), NULL); 10165 10166 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 10167 10168 if (!tb[NL80211_ATTR_SURVEY_INFO]) 10169 return NL_SKIP; 10170 10171 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 10172 tb[NL80211_ATTR_SURVEY_INFO], 10173 survey_policy)) 10174 return NL_SKIP; 10175 10176 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) { 10177 wpa_printf(MSG_ERROR, "nl80211: Invalid survey data"); 10178 return NL_SKIP; 10179 } 10180 10181 surveyed_freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); 10182 10183 if (!check_survey_ok(sinfo, surveyed_freq, 10184 survey_results->freq_filter)) 10185 return NL_SKIP; 10186 10187 if (survey_results->freq_filter && 10188 survey_results->freq_filter != surveyed_freq) { 10189 wpa_printf(MSG_EXCESSIVE, "nl80211: Ignoring survey data for freq %d MHz", 10190 surveyed_freq); 10191 return NL_SKIP; 10192 } 10193 10194 add_survey(sinfo, ifidx, &survey_results->survey_list); 10195 10196 return NL_SKIP; 10197} 10198 10199 10200static int wpa_driver_nl80211_get_survey(void *priv, unsigned int freq) 10201{ 10202 struct i802_bss *bss = priv; 10203 struct wpa_driver_nl80211_data *drv = bss->drv; 10204 struct nl_msg *msg; 10205 int err = -ENOBUFS; 10206 union wpa_event_data data; 10207 struct survey_results *survey_results; 10208 10209 os_memset(&data, 0, sizeof(data)); 10210 survey_results = &data.survey_results; 10211 10212 dl_list_init(&survey_results->survey_list); 10213 10214 msg = nlmsg_alloc(); 10215 if (!msg) 10216 goto nla_put_failure; 10217 10218 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 10219 10220 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10221 10222 if (freq) 10223 data.survey_results.freq_filter = freq; 10224 10225 do { 10226 wpa_printf(MSG_DEBUG, "nl80211: Fetch survey data"); 10227 err = send_and_recv_msgs(drv, msg, survey_handler, 10228 survey_results); 10229 } while (err > 0); 10230 10231 if (err) { 10232 wpa_printf(MSG_ERROR, "nl80211: Failed to process survey data"); 10233 goto out_clean; 10234 } 10235 10236 wpa_supplicant_event(drv->ctx, EVENT_SURVEY, &data); 10237 10238out_clean: 10239 clean_survey_results(survey_results); 10240nla_put_failure: 10241 return err; 10242} 10243 10244 10245static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck, 10246 const u8 *replay_ctr) 10247{ 10248 struct i802_bss *bss = priv; 10249 struct wpa_driver_nl80211_data *drv = bss->drv; 10250 struct nlattr *replay_nested; 10251 struct nl_msg *msg; 10252 10253 msg = nlmsg_alloc(); 10254 if (!msg) 10255 return; 10256 10257 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD); 10258 10259 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10260 10261 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); 10262 if (!replay_nested) 10263 goto nla_put_failure; 10264 10265 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek); 10266 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck); 10267 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN, 10268 replay_ctr); 10269 10270 nla_nest_end(msg, replay_nested); 10271 10272 send_and_recv_msgs(drv, msg, NULL, NULL); 10273 return; 10274 nla_put_failure: 10275 nlmsg_free(msg); 10276} 10277 10278 10279static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr, 10280 const u8 *addr, int qos) 10281{ 10282 /* send data frame to poll STA and check whether 10283 * this frame is ACKed */ 10284 struct { 10285 struct ieee80211_hdr hdr; 10286 u16 qos_ctl; 10287 } STRUCT_PACKED nulldata; 10288 size_t size; 10289 10290 /* Send data frame to poll STA and check whether this frame is ACKed */ 10291 10292 os_memset(&nulldata, 0, sizeof(nulldata)); 10293 10294 if (qos) { 10295 nulldata.hdr.frame_control = 10296 IEEE80211_FC(WLAN_FC_TYPE_DATA, 10297 WLAN_FC_STYPE_QOS_NULL); 10298 size = sizeof(nulldata); 10299 } else { 10300 nulldata.hdr.frame_control = 10301 IEEE80211_FC(WLAN_FC_TYPE_DATA, 10302 WLAN_FC_STYPE_NULLFUNC); 10303 size = sizeof(struct ieee80211_hdr); 10304 } 10305 10306 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS); 10307 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN); 10308 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 10309 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 10310 10311 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0, 0, 0, 10312 0, 0) < 0) 10313 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to " 10314 "send poll frame"); 10315} 10316 10317static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr, 10318 int qos) 10319{ 10320 struct i802_bss *bss = priv; 10321 struct wpa_driver_nl80211_data *drv = bss->drv; 10322 struct nl_msg *msg; 10323 10324 if (!drv->poll_command_supported) { 10325 nl80211_send_null_frame(bss, own_addr, addr, qos); 10326 return; 10327 } 10328 10329 msg = nlmsg_alloc(); 10330 if (!msg) 10331 return; 10332 10333 nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT); 10334 10335 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10336 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 10337 10338 send_and_recv_msgs(drv, msg, NULL, NULL); 10339 return; 10340 nla_put_failure: 10341 nlmsg_free(msg); 10342} 10343 10344 10345static int nl80211_set_power_save(struct i802_bss *bss, int enabled) 10346{ 10347 struct nl_msg *msg; 10348 10349 msg = nlmsg_alloc(); 10350 if (!msg) 10351 return -ENOMEM; 10352 10353 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE); 10354 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10355 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, 10356 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED); 10357 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 10358nla_put_failure: 10359 nlmsg_free(msg); 10360 return -ENOBUFS; 10361} 10362 10363 10364static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps, 10365 int ctwindow) 10366{ 10367 struct i802_bss *bss = priv; 10368 10369 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d " 10370 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow); 10371 10372 if (opp_ps != -1 || ctwindow != -1) 10373#ifdef ANDROID_P2P 10374 wpa_driver_set_p2p_ps(priv, legacy_ps, opp_ps, ctwindow); 10375#else 10376 return -1; /* Not yet supported */ 10377#endif 10378 10379 if (legacy_ps == -1) 10380 return 0; 10381 if (legacy_ps != 0 && legacy_ps != 1) 10382 return -1; /* Not yet supported */ 10383 10384 return nl80211_set_power_save(bss, legacy_ps); 10385} 10386 10387 10388static int nl80211_start_radar_detection(void *priv, int freq) 10389{ 10390 struct i802_bss *bss = priv; 10391 struct wpa_driver_nl80211_data *drv = bss->drv; 10392 struct nl_msg *msg; 10393 int ret; 10394 10395 wpa_printf(MSG_DEBUG, "nl80211: Start radar detection (CAC)"); 10396 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_RADAR)) { 10397 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support radar " 10398 "detection"); 10399 return -1; 10400 } 10401 10402 msg = nlmsg_alloc(); 10403 if (!msg) 10404 return -1; 10405 10406 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_RADAR_DETECT); 10407 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10408 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 10409 10410 /* only HT20 is supported at this point */ 10411 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, NL80211_CHAN_HT20); 10412 10413 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10414 if (ret == 0) 10415 return 0; 10416 wpa_printf(MSG_DEBUG, "nl80211: Failed to start radar detection: " 10417 "%d (%s)", ret, strerror(-ret)); 10418nla_put_failure: 10419 return -1; 10420} 10421 10422#ifdef CONFIG_TDLS 10423 10424static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code, 10425 u8 dialog_token, u16 status_code, 10426 const u8 *buf, size_t len) 10427{ 10428 struct i802_bss *bss = priv; 10429 struct wpa_driver_nl80211_data *drv = bss->drv; 10430 struct nl_msg *msg; 10431 10432 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 10433 return -EOPNOTSUPP; 10434 10435 if (!dst) 10436 return -EINVAL; 10437 10438 msg = nlmsg_alloc(); 10439 if (!msg) 10440 return -ENOMEM; 10441 10442 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT); 10443 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10444 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); 10445 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code); 10446 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token); 10447 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code); 10448 NLA_PUT(msg, NL80211_ATTR_IE, len, buf); 10449 10450 return send_and_recv_msgs(drv, msg, NULL, NULL); 10451 10452nla_put_failure: 10453 nlmsg_free(msg); 10454 return -ENOBUFS; 10455} 10456 10457 10458static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer) 10459{ 10460 struct i802_bss *bss = priv; 10461 struct wpa_driver_nl80211_data *drv = bss->drv; 10462 struct nl_msg *msg; 10463 enum nl80211_tdls_operation nl80211_oper; 10464 10465 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 10466 return -EOPNOTSUPP; 10467 10468 switch (oper) { 10469 case TDLS_DISCOVERY_REQ: 10470 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ; 10471 break; 10472 case TDLS_SETUP: 10473 nl80211_oper = NL80211_TDLS_SETUP; 10474 break; 10475 case TDLS_TEARDOWN: 10476 nl80211_oper = NL80211_TDLS_TEARDOWN; 10477 break; 10478 case TDLS_ENABLE_LINK: 10479 nl80211_oper = NL80211_TDLS_ENABLE_LINK; 10480 break; 10481 case TDLS_DISABLE_LINK: 10482 nl80211_oper = NL80211_TDLS_DISABLE_LINK; 10483 break; 10484 case TDLS_ENABLE: 10485 return 0; 10486 case TDLS_DISABLE: 10487 return 0; 10488 default: 10489 return -EINVAL; 10490 } 10491 10492 msg = nlmsg_alloc(); 10493 if (!msg) 10494 return -ENOMEM; 10495 10496 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER); 10497 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper); 10498 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10499 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer); 10500 10501 return send_and_recv_msgs(drv, msg, NULL, NULL); 10502 10503nla_put_failure: 10504 nlmsg_free(msg); 10505 return -ENOBUFS; 10506} 10507 10508#endif /* CONFIG TDLS */ 10509 10510 10511#ifdef ANDROID 10512 10513typedef struct android_wifi_priv_cmd { 10514 char *buf; 10515 int used_len; 10516 int total_len; 10517} android_wifi_priv_cmd; 10518 10519static int drv_errors = 0; 10520 10521static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv) 10522{ 10523 drv_errors++; 10524 if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) { 10525 drv_errors = 0; 10526 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED"); 10527 } 10528} 10529 10530 10531static int android_priv_cmd(struct i802_bss *bss, const char *cmd) 10532{ 10533 struct wpa_driver_nl80211_data *drv = bss->drv; 10534 struct ifreq ifr; 10535 android_wifi_priv_cmd priv_cmd; 10536 char buf[MAX_DRV_CMD_SIZE]; 10537 int ret; 10538 10539 os_memset(&ifr, 0, sizeof(ifr)); 10540 os_memset(&priv_cmd, 0, sizeof(priv_cmd)); 10541 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 10542 10543 os_memset(buf, 0, sizeof(buf)); 10544 os_strlcpy(buf, cmd, sizeof(buf)); 10545 10546 priv_cmd.buf = buf; 10547 priv_cmd.used_len = sizeof(buf); 10548 priv_cmd.total_len = sizeof(buf); 10549 ifr.ifr_data = &priv_cmd; 10550 10551 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 10552 if (ret < 0) { 10553 wpa_printf(MSG_ERROR, "%s: failed to issue private commands", 10554 __func__); 10555 wpa_driver_send_hang_msg(drv); 10556 return ret; 10557 } 10558 10559 drv_errors = 0; 10560 return 0; 10561} 10562 10563 10564static int android_pno_start(struct i802_bss *bss, 10565 struct wpa_driver_scan_params *params) 10566{ 10567 struct wpa_driver_nl80211_data *drv = bss->drv; 10568 struct ifreq ifr; 10569 android_wifi_priv_cmd priv_cmd; 10570 int ret = 0, i = 0, bp; 10571 char buf[WEXT_PNO_MAX_COMMAND_SIZE]; 10572 10573 bp = WEXT_PNOSETUP_HEADER_SIZE; 10574 os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp); 10575 buf[bp++] = WEXT_PNO_TLV_PREFIX; 10576 buf[bp++] = WEXT_PNO_TLV_VERSION; 10577 buf[bp++] = WEXT_PNO_TLV_SUBVERSION; 10578 buf[bp++] = WEXT_PNO_TLV_RESERVED; 10579 10580 while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) { 10581 /* Check that there is enough space needed for 1 more SSID, the 10582 * other sections and null termination */ 10583 if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN + 10584 WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf)) 10585 break; 10586 wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan", 10587 params->ssids[i].ssid, 10588 params->ssids[i].ssid_len); 10589 buf[bp++] = WEXT_PNO_SSID_SECTION; 10590 buf[bp++] = params->ssids[i].ssid_len; 10591 os_memcpy(&buf[bp], params->ssids[i].ssid, 10592 params->ssids[i].ssid_len); 10593 bp += params->ssids[i].ssid_len; 10594 i++; 10595 } 10596 10597 buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION; 10598 os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x", 10599 WEXT_PNO_SCAN_INTERVAL); 10600 bp += WEXT_PNO_SCAN_INTERVAL_LENGTH; 10601 10602 buf[bp++] = WEXT_PNO_REPEAT_SECTION; 10603 os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x", 10604 WEXT_PNO_REPEAT); 10605 bp += WEXT_PNO_REPEAT_LENGTH; 10606 10607 buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION; 10608 os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x", 10609 WEXT_PNO_MAX_REPEAT); 10610 bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1; 10611 10612 memset(&ifr, 0, sizeof(ifr)); 10613 memset(&priv_cmd, 0, sizeof(priv_cmd)); 10614 os_strncpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 10615 10616 priv_cmd.buf = buf; 10617 priv_cmd.used_len = bp; 10618 priv_cmd.total_len = bp; 10619 ifr.ifr_data = &priv_cmd; 10620 10621 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 10622 10623 if (ret < 0) { 10624 wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d", 10625 ret); 10626 wpa_driver_send_hang_msg(drv); 10627 return ret; 10628 } 10629 10630 drv_errors = 0; 10631 10632 return android_priv_cmd(bss, "PNOFORCE 1"); 10633} 10634 10635 10636static int android_pno_stop(struct i802_bss *bss) 10637{ 10638 return android_priv_cmd(bss, "PNOFORCE 0"); 10639} 10640 10641#endif /* ANDROID */ 10642 10643 10644static int driver_nl80211_set_key(const char *ifname, void *priv, 10645 enum wpa_alg alg, const u8 *addr, 10646 int key_idx, int set_tx, 10647 const u8 *seq, size_t seq_len, 10648 const u8 *key, size_t key_len) 10649{ 10650 struct i802_bss *bss = priv; 10651 return wpa_driver_nl80211_set_key(ifname, bss, alg, addr, key_idx, 10652 set_tx, seq, seq_len, key, key_len); 10653} 10654 10655 10656static int driver_nl80211_scan2(void *priv, 10657 struct wpa_driver_scan_params *params) 10658{ 10659 struct i802_bss *bss = priv; 10660 return wpa_driver_nl80211_scan(bss, params); 10661} 10662 10663 10664static int driver_nl80211_deauthenticate(void *priv, const u8 *addr, 10665 int reason_code) 10666{ 10667 struct i802_bss *bss = priv; 10668 return wpa_driver_nl80211_deauthenticate(bss, addr, reason_code); 10669} 10670 10671 10672static int driver_nl80211_authenticate(void *priv, 10673 struct wpa_driver_auth_params *params) 10674{ 10675 struct i802_bss *bss = priv; 10676 return wpa_driver_nl80211_authenticate(bss, params); 10677} 10678 10679 10680static void driver_nl80211_deinit(void *priv) 10681{ 10682 struct i802_bss *bss = priv; 10683 wpa_driver_nl80211_deinit(bss); 10684} 10685 10686 10687static int driver_nl80211_if_remove(void *priv, enum wpa_driver_if_type type, 10688 const char *ifname) 10689{ 10690 struct i802_bss *bss = priv; 10691 return wpa_driver_nl80211_if_remove(bss, type, ifname); 10692} 10693 10694 10695static int driver_nl80211_send_mlme(void *priv, const u8 *data, 10696 size_t data_len, int noack) 10697{ 10698 struct i802_bss *bss = priv; 10699 return wpa_driver_nl80211_send_mlme(bss, data, data_len, noack, 10700 0, 0, 0, 0); 10701} 10702 10703 10704static int driver_nl80211_sta_remove(void *priv, const u8 *addr) 10705{ 10706 struct i802_bss *bss = priv; 10707 return wpa_driver_nl80211_sta_remove(bss, addr); 10708} 10709 10710 10711#if defined(HOSTAPD) || defined(CONFIG_AP) 10712static int driver_nl80211_set_sta_vlan(void *priv, const u8 *addr, 10713 const char *ifname, int vlan_id) 10714{ 10715 struct i802_bss *bss = priv; 10716 return i802_set_sta_vlan(bss, addr, ifname, vlan_id); 10717} 10718#endif /* HOSTAPD || CONFIG_AP */ 10719 10720 10721static int driver_nl80211_read_sta_data(void *priv, 10722 struct hostap_sta_driver_data *data, 10723 const u8 *addr) 10724{ 10725 struct i802_bss *bss = priv; 10726 return i802_read_sta_data(bss, data, addr); 10727} 10728 10729 10730static int driver_nl80211_send_action(void *priv, unsigned int freq, 10731 unsigned int wait_time, 10732 const u8 *dst, const u8 *src, 10733 const u8 *bssid, 10734 const u8 *data, size_t data_len, 10735 int no_cck) 10736{ 10737 struct i802_bss *bss = priv; 10738 return wpa_driver_nl80211_send_action(bss, freq, wait_time, dst, src, 10739 bssid, data, data_len, no_cck); 10740} 10741 10742 10743static int driver_nl80211_probe_req_report(void *priv, int report) 10744{ 10745 struct i802_bss *bss = priv; 10746 return wpa_driver_nl80211_probe_req_report(bss, report); 10747} 10748 10749 10750static int wpa_driver_nl80211_update_ft_ies(void *priv, const u8 *md, 10751 const u8 *ies, size_t ies_len) 10752{ 10753 int ret; 10754 struct nl_msg *msg; 10755 struct i802_bss *bss = priv; 10756 struct wpa_driver_nl80211_data *drv = bss->drv; 10757 u16 mdid = WPA_GET_LE16(md); 10758 10759 msg = nlmsg_alloc(); 10760 if (!msg) 10761 return -ENOMEM; 10762 10763 wpa_printf(MSG_DEBUG, "nl80211: Updating FT IEs"); 10764 nl80211_cmd(drv, msg, 0, NL80211_CMD_UPDATE_FT_IES); 10765 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10766 NLA_PUT(msg, NL80211_ATTR_IE, ies_len, ies); 10767 NLA_PUT_U16(msg, NL80211_ATTR_MDID, mdid); 10768 10769 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10770 if (ret) { 10771 wpa_printf(MSG_DEBUG, "nl80211: update_ft_ies failed " 10772 "err=%d (%s)", ret, strerror(-ret)); 10773 } 10774 10775 return ret; 10776 10777nla_put_failure: 10778 nlmsg_free(msg); 10779 return -ENOBUFS; 10780} 10781 10782 10783const u8 * wpa_driver_nl80211_get_macaddr(void *priv) 10784{ 10785 struct i802_bss *bss = priv; 10786 struct wpa_driver_nl80211_data *drv = bss->drv; 10787 10788 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) 10789 return NULL; 10790 10791 return bss->addr; 10792} 10793 10794 10795static const char * scan_state_str(enum scan_states scan_state) 10796{ 10797 switch (scan_state) { 10798 case NO_SCAN: 10799 return "NO_SCAN"; 10800 case SCAN_REQUESTED: 10801 return "SCAN_REQUESTED"; 10802 case SCAN_STARTED: 10803 return "SCAN_STARTED"; 10804 case SCAN_COMPLETED: 10805 return "SCAN_COMPLETED"; 10806 case SCAN_ABORTED: 10807 return "SCAN_ABORTED"; 10808 case SCHED_SCAN_STARTED: 10809 return "SCHED_SCAN_STARTED"; 10810 case SCHED_SCAN_STOPPED: 10811 return "SCHED_SCAN_STOPPED"; 10812 case SCHED_SCAN_RESULTS: 10813 return "SCHED_SCAN_RESULTS"; 10814 } 10815 10816 return "??"; 10817} 10818 10819 10820static int wpa_driver_nl80211_status(void *priv, char *buf, size_t buflen) 10821{ 10822 struct i802_bss *bss = priv; 10823 struct wpa_driver_nl80211_data *drv = bss->drv; 10824 int res; 10825 char *pos, *end; 10826 10827 pos = buf; 10828 end = buf + buflen; 10829 10830 res = os_snprintf(pos, end - pos, 10831 "ifindex=%d\n" 10832 "ifname=%s\n" 10833 "brname=%s\n" 10834 "addr=" MACSTR "\n" 10835 "freq=%d\n" 10836 "%s%s%s%s%s", 10837 bss->ifindex, 10838 bss->ifname, 10839 bss->brname, 10840 MAC2STR(bss->addr), 10841 bss->freq, 10842 bss->beacon_set ? "beacon_set=1\n" : "", 10843 bss->added_if_into_bridge ? 10844 "added_if_into_bridge=1\n" : "", 10845 bss->added_bridge ? "added_bridge=1\n" : "", 10846 bss->in_deinit ? "in_deinit=1\n" : "", 10847 bss->if_dynamic ? "if_dynamic=1\n" : ""); 10848 if (res < 0 || res >= end - pos) 10849 return pos - buf; 10850 pos += res; 10851 10852 if (bss->wdev_id_set) { 10853 res = os_snprintf(pos, end - pos, "wdev_id=%llu\n", 10854 (unsigned long long) bss->wdev_id); 10855 if (res < 0 || res >= end - pos) 10856 return pos - buf; 10857 pos += res; 10858 } 10859 10860 res = os_snprintf(pos, end - pos, 10861 "phyname=%s\n" 10862 "drv_ifindex=%d\n" 10863 "operstate=%d\n" 10864 "scan_state=%s\n" 10865 "auth_bssid=" MACSTR "\n" 10866 "auth_attempt_bssid=" MACSTR "\n" 10867 "bssid=" MACSTR "\n" 10868 "prev_bssid=" MACSTR "\n" 10869 "associated=%d\n" 10870 "assoc_freq=%u\n" 10871 "monitor_sock=%d\n" 10872 "monitor_ifidx=%d\n" 10873 "monitor_refcount=%d\n" 10874 "last_mgmt_freq=%u\n" 10875 "eapol_tx_sock=%d\n" 10876 "%s%s%s%s%s%s%s%s%s%s%s%s%s", 10877 drv->phyname, 10878 drv->ifindex, 10879 drv->operstate, 10880 scan_state_str(drv->scan_state), 10881 MAC2STR(drv->auth_bssid), 10882 MAC2STR(drv->auth_attempt_bssid), 10883 MAC2STR(drv->bssid), 10884 MAC2STR(drv->prev_bssid), 10885 drv->associated, 10886 drv->assoc_freq, 10887 drv->monitor_sock, 10888 drv->monitor_ifidx, 10889 drv->monitor_refcount, 10890 drv->last_mgmt_freq, 10891 drv->eapol_tx_sock, 10892 drv->ignore_if_down_event ? 10893 "ignore_if_down_event=1\n" : "", 10894 drv->scan_complete_events ? 10895 "scan_complete_events=1\n" : "", 10896 drv->disabled_11b_rates ? 10897 "disabled_11b_rates=1\n" : "", 10898 drv->pending_remain_on_chan ? 10899 "pending_remain_on_chan=1\n" : "", 10900 drv->in_interface_list ? "in_interface_list=1\n" : "", 10901 drv->device_ap_sme ? "device_ap_sme=1\n" : "", 10902 drv->poll_command_supported ? 10903 "poll_command_supported=1\n" : "", 10904 drv->data_tx_status ? "data_tx_status=1\n" : "", 10905 drv->scan_for_auth ? "scan_for_auth=1\n" : "", 10906 drv->retry_auth ? "retry_auth=1\n" : "", 10907 drv->use_monitor ? "use_monitor=1\n" : "", 10908 drv->ignore_next_local_disconnect ? 10909 "ignore_next_local_disconnect=1\n" : "", 10910 drv->allow_p2p_device ? "allow_p2p_device=1\n" : ""); 10911 if (res < 0 || res >= end - pos) 10912 return pos - buf; 10913 pos += res; 10914 10915 if (drv->has_capability) { 10916 res = os_snprintf(pos, end - pos, 10917 "capa.key_mgmt=0x%x\n" 10918 "capa.enc=0x%x\n" 10919 "capa.auth=0x%x\n" 10920 "capa.flags=0x%x\n" 10921 "capa.max_scan_ssids=%d\n" 10922 "capa.max_sched_scan_ssids=%d\n" 10923 "capa.sched_scan_supported=%d\n" 10924 "capa.max_match_sets=%d\n" 10925 "capa.max_remain_on_chan=%u\n" 10926 "capa.max_stations=%u\n" 10927 "capa.probe_resp_offloads=0x%x\n" 10928 "capa.max_acl_mac_addrs=%u\n" 10929 "capa.num_multichan_concurrent=%u\n", 10930 drv->capa.key_mgmt, 10931 drv->capa.enc, 10932 drv->capa.auth, 10933 drv->capa.flags, 10934 drv->capa.max_scan_ssids, 10935 drv->capa.max_sched_scan_ssids, 10936 drv->capa.sched_scan_supported, 10937 drv->capa.max_match_sets, 10938 drv->capa.max_remain_on_chan, 10939 drv->capa.max_stations, 10940 drv->capa.probe_resp_offloads, 10941 drv->capa.max_acl_mac_addrs, 10942 drv->capa.num_multichan_concurrent); 10943 if (res < 0 || res >= end - pos) 10944 return pos - buf; 10945 pos += res; 10946 } 10947 10948 return pos - buf; 10949} 10950 10951 10952const struct wpa_driver_ops wpa_driver_nl80211_ops = { 10953 .name = "nl80211", 10954 .desc = "Linux nl80211/cfg80211", 10955 .get_bssid = wpa_driver_nl80211_get_bssid, 10956 .get_ssid = wpa_driver_nl80211_get_ssid, 10957 .set_key = driver_nl80211_set_key, 10958 .scan2 = driver_nl80211_scan2, 10959 .sched_scan = wpa_driver_nl80211_sched_scan, 10960 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan, 10961 .get_scan_results2 = wpa_driver_nl80211_get_scan_results, 10962 .deauthenticate = driver_nl80211_deauthenticate, 10963 .authenticate = driver_nl80211_authenticate, 10964 .associate = wpa_driver_nl80211_associate, 10965 .global_init = nl80211_global_init, 10966 .global_deinit = nl80211_global_deinit, 10967 .init2 = wpa_driver_nl80211_init, 10968 .deinit = driver_nl80211_deinit, 10969 .get_capa = wpa_driver_nl80211_get_capa, 10970 .set_operstate = wpa_driver_nl80211_set_operstate, 10971 .set_supp_port = wpa_driver_nl80211_set_supp_port, 10972 .set_country = wpa_driver_nl80211_set_country, 10973 .set_ap = wpa_driver_nl80211_set_ap, 10974 .set_acl = wpa_driver_nl80211_set_acl, 10975 .if_add = wpa_driver_nl80211_if_add, 10976 .if_remove = driver_nl80211_if_remove, 10977 .send_mlme = driver_nl80211_send_mlme, 10978 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data, 10979 .sta_add = wpa_driver_nl80211_sta_add, 10980 .sta_remove = driver_nl80211_sta_remove, 10981 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol, 10982 .sta_set_flags = wpa_driver_nl80211_sta_set_flags, 10983#ifdef HOSTAPD 10984 .hapd_init = i802_init, 10985 .hapd_deinit = i802_deinit, 10986 .set_wds_sta = i802_set_wds_sta, 10987#endif /* HOSTAPD */ 10988#if defined(HOSTAPD) || defined(CONFIG_AP) 10989 .get_seqnum = i802_get_seqnum, 10990 .flush = i802_flush, 10991 .get_inact_sec = i802_get_inact_sec, 10992 .sta_clear_stats = i802_sta_clear_stats, 10993 .set_rts = i802_set_rts, 10994 .set_frag = i802_set_frag, 10995 .set_tx_queue_params = i802_set_tx_queue_params, 10996 .set_sta_vlan = driver_nl80211_set_sta_vlan, 10997 .sta_deauth = i802_sta_deauth, 10998 .sta_disassoc = i802_sta_disassoc, 10999#endif /* HOSTAPD || CONFIG_AP */ 11000 .read_sta_data = driver_nl80211_read_sta_data, 11001 .set_freq = i802_set_freq, 11002 .send_action = driver_nl80211_send_action, 11003 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait, 11004 .remain_on_channel = wpa_driver_nl80211_remain_on_channel, 11005 .cancel_remain_on_channel = 11006 wpa_driver_nl80211_cancel_remain_on_channel, 11007 .probe_req_report = driver_nl80211_probe_req_report, 11008 .deinit_ap = wpa_driver_nl80211_deinit_ap, 11009 .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli, 11010 .resume = wpa_driver_nl80211_resume, 11011 .send_ft_action = nl80211_send_ft_action, 11012 .signal_monitor = nl80211_signal_monitor, 11013 .signal_poll = nl80211_signal_poll, 11014 .send_frame = nl80211_send_frame, 11015 .shared_freq = wpa_driver_nl80211_shared_freq, 11016 .set_param = nl80211_set_param, 11017 .get_radio_name = nl80211_get_radio_name, 11018 .add_pmkid = nl80211_add_pmkid, 11019 .remove_pmkid = nl80211_remove_pmkid, 11020 .flush_pmkid = nl80211_flush_pmkid, 11021 .set_rekey_info = nl80211_set_rekey_info, 11022 .poll_client = nl80211_poll_client, 11023 .set_p2p_powersave = nl80211_set_p2p_powersave, 11024 .start_dfs_cac = nl80211_start_radar_detection, 11025 .stop_ap = wpa_driver_nl80211_stop_ap, 11026#ifdef CONFIG_TDLS 11027 .send_tdls_mgmt = nl80211_send_tdls_mgmt, 11028 .tdls_oper = nl80211_tdls_oper, 11029#endif /* CONFIG_TDLS */ 11030 .update_ft_ies = wpa_driver_nl80211_update_ft_ies, 11031 .get_mac_addr = wpa_driver_nl80211_get_macaddr, 11032 .get_survey = wpa_driver_nl80211_get_survey, 11033 .status = wpa_driver_nl80211_status, 11034#ifdef ANDROID_P2P 11035 .set_noa = wpa_driver_set_p2p_noa, 11036 .get_noa = wpa_driver_get_p2p_noa, 11037 .set_ap_wps_ie = wpa_driver_set_ap_wps_p2p_ie, 11038#endif 11039#ifdef ANDROID 11040 .driver_cmd = wpa_driver_nl80211_driver_cmd, 11041#endif 11042}; 11043