driver_nl80211.c revision 051af73b8f8014eff33330aead0f36944b3403e6
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 enum chan_width convert2width(int width); 2517 2518static void nl80211_radar_event(struct wpa_driver_nl80211_data *drv, 2519 struct nlattr **tb) 2520{ 2521 union wpa_event_data data; 2522 enum nl80211_radar_event event_type; 2523 2524 if (!tb[NL80211_ATTR_WIPHY_FREQ] || !tb[NL80211_ATTR_RADAR_EVENT]) 2525 return; 2526 2527 os_memset(&data, 0, sizeof(data)); 2528 data.dfs_event.freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); 2529 event_type = nla_get_u32(tb[NL80211_ATTR_RADAR_EVENT]); 2530 2531 /* Check HT params */ 2532 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { 2533 data.dfs_event.ht_enabled = 1; 2534 data.dfs_event.chan_offset = 0; 2535 2536 switch (nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])) { 2537 case NL80211_CHAN_NO_HT: 2538 data.dfs_event.ht_enabled = 0; 2539 break; 2540 case NL80211_CHAN_HT20: 2541 break; 2542 case NL80211_CHAN_HT40PLUS: 2543 data.dfs_event.chan_offset = 1; 2544 break; 2545 case NL80211_CHAN_HT40MINUS: 2546 data.dfs_event.chan_offset = -1; 2547 break; 2548 } 2549 } 2550 2551 /* Get VHT params */ 2552 data.dfs_event.chan_width = 2553 convert2width(nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH])); 2554 data.dfs_event.cf1 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); 2555 if (tb[NL80211_ATTR_CENTER_FREQ2]) 2556 data.dfs_event.cf2 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); 2557 2558 wpa_printf(MSG_DEBUG, "nl80211: DFS event on freq %d MHz, ht: %d, offset: %d, width: %d, cf1: %dMHz, cf2: %dMHz", 2559 data.dfs_event.freq, data.dfs_event.ht_enabled, 2560 data.dfs_event.chan_offset, data.dfs_event.chan_width, 2561 data.dfs_event.cf1, data.dfs_event.cf2); 2562 2563 switch (event_type) { 2564 case NL80211_RADAR_DETECTED: 2565 wpa_supplicant_event(drv->ctx, EVENT_DFS_RADAR_DETECTED, &data); 2566 break; 2567 case NL80211_RADAR_CAC_FINISHED: 2568 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_FINISHED, &data); 2569 break; 2570 case NL80211_RADAR_CAC_ABORTED: 2571 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_ABORTED, &data); 2572 break; 2573 case NL80211_RADAR_NOP_FINISHED: 2574 wpa_supplicant_event(drv->ctx, EVENT_DFS_NOP_FINISHED, &data); 2575 break; 2576 default: 2577 wpa_printf(MSG_DEBUG, "nl80211: Unknown radar event %d " 2578 "received", event_type); 2579 break; 2580 } 2581} 2582 2583 2584static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb, 2585 int wds) 2586{ 2587 struct wpa_driver_nl80211_data *drv = bss->drv; 2588 union wpa_event_data event; 2589 2590 if (!tb[NL80211_ATTR_MAC]) 2591 return; 2592 2593 os_memset(&event, 0, sizeof(event)); 2594 event.rx_from_unknown.bssid = bss->addr; 2595 event.rx_from_unknown.addr = nla_data(tb[NL80211_ATTR_MAC]); 2596 event.rx_from_unknown.wds = wds; 2597 2598 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 2599} 2600 2601 2602static void do_process_drv_event(struct i802_bss *bss, int cmd, 2603 struct nlattr **tb) 2604{ 2605 struct wpa_driver_nl80211_data *drv = bss->drv; 2606 2607 wpa_printf(MSG_DEBUG, "nl80211: Drv Event %d (%s) received for %s", 2608 cmd, nl80211_command_to_string(cmd), bss->ifname); 2609 2610 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED && 2611 (cmd == NL80211_CMD_NEW_SCAN_RESULTS || 2612 cmd == NL80211_CMD_SCAN_ABORTED)) { 2613 wpa_driver_nl80211_set_mode(&drv->first_bss, 2614 drv->ap_scan_as_station); 2615 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 2616 } 2617 2618 switch (cmd) { 2619 case NL80211_CMD_TRIGGER_SCAN: 2620 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan trigger"); 2621 drv->scan_state = SCAN_STARTED; 2622 break; 2623 case NL80211_CMD_START_SCHED_SCAN: 2624 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan started"); 2625 drv->scan_state = SCHED_SCAN_STARTED; 2626 break; 2627 case NL80211_CMD_SCHED_SCAN_STOPPED: 2628 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan stopped"); 2629 drv->scan_state = SCHED_SCAN_STOPPED; 2630 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL); 2631 break; 2632 case NL80211_CMD_NEW_SCAN_RESULTS: 2633 wpa_dbg(drv->ctx, MSG_DEBUG, 2634 "nl80211: New scan results available"); 2635 drv->scan_state = SCAN_COMPLETED; 2636 drv->scan_complete_events = 1; 2637 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 2638 drv->ctx); 2639 send_scan_event(drv, 0, tb); 2640 break; 2641 case NL80211_CMD_SCHED_SCAN_RESULTS: 2642 wpa_dbg(drv->ctx, MSG_DEBUG, 2643 "nl80211: New sched scan results available"); 2644 drv->scan_state = SCHED_SCAN_RESULTS; 2645 send_scan_event(drv, 0, tb); 2646 break; 2647 case NL80211_CMD_SCAN_ABORTED: 2648 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan aborted"); 2649 drv->scan_state = SCAN_ABORTED; 2650 /* 2651 * Need to indicate that scan results are available in order 2652 * not to make wpa_supplicant stop its scanning. 2653 */ 2654 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 2655 drv->ctx); 2656 send_scan_event(drv, 1, tb); 2657 break; 2658 case NL80211_CMD_AUTHENTICATE: 2659 case NL80211_CMD_ASSOCIATE: 2660 case NL80211_CMD_DEAUTHENTICATE: 2661 case NL80211_CMD_DISASSOCIATE: 2662 case NL80211_CMD_FRAME_TX_STATUS: 2663 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 2664 case NL80211_CMD_UNPROT_DISASSOCIATE: 2665 mlme_event(bss, cmd, tb[NL80211_ATTR_FRAME], 2666 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 2667 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 2668 tb[NL80211_ATTR_COOKIE], 2669 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 2670 break; 2671 case NL80211_CMD_CONNECT: 2672 case NL80211_CMD_ROAM: 2673 mlme_event_connect(drv, cmd, 2674 tb[NL80211_ATTR_STATUS_CODE], 2675 tb[NL80211_ATTR_MAC], 2676 tb[NL80211_ATTR_REQ_IE], 2677 tb[NL80211_ATTR_RESP_IE]); 2678 break; 2679 case NL80211_CMD_CH_SWITCH_NOTIFY: 2680 mlme_event_ch_switch(drv, tb[NL80211_ATTR_WIPHY_FREQ], 2681 tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); 2682 break; 2683 case NL80211_CMD_DISCONNECT: 2684 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE], 2685 tb[NL80211_ATTR_MAC], 2686 tb[NL80211_ATTR_DISCONNECTED_BY_AP]); 2687 break; 2688 case NL80211_CMD_MICHAEL_MIC_FAILURE: 2689 mlme_event_michael_mic_failure(bss, tb); 2690 break; 2691 case NL80211_CMD_JOIN_IBSS: 2692 mlme_event_join_ibss(drv, tb); 2693 break; 2694 case NL80211_CMD_REMAIN_ON_CHANNEL: 2695 mlme_event_remain_on_channel(drv, 0, tb); 2696 break; 2697 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL: 2698 mlme_event_remain_on_channel(drv, 1, tb); 2699 break; 2700 case NL80211_CMD_NOTIFY_CQM: 2701 nl80211_cqm_event(drv, tb); 2702 break; 2703 case NL80211_CMD_REG_CHANGE: 2704 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change"); 2705 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 2706 NULL); 2707 break; 2708 case NL80211_CMD_REG_BEACON_HINT: 2709 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint"); 2710 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 2711 NULL); 2712 break; 2713 case NL80211_CMD_NEW_STATION: 2714 nl80211_new_station_event(drv, tb); 2715 break; 2716 case NL80211_CMD_DEL_STATION: 2717 nl80211_del_station_event(drv, tb); 2718 break; 2719 case NL80211_CMD_SET_REKEY_OFFLOAD: 2720 nl80211_rekey_offload_event(drv, tb); 2721 break; 2722 case NL80211_CMD_PMKSA_CANDIDATE: 2723 nl80211_pmksa_candidate_event(drv, tb); 2724 break; 2725 case NL80211_CMD_PROBE_CLIENT: 2726 nl80211_client_probe_event(drv, tb); 2727 break; 2728 case NL80211_CMD_TDLS_OPER: 2729 nl80211_tdls_oper_event(drv, tb); 2730 break; 2731 case NL80211_CMD_CONN_FAILED: 2732 nl80211_connect_failed_event(drv, tb); 2733 break; 2734 case NL80211_CMD_FT_EVENT: 2735 mlme_event_ft_event(drv, tb); 2736 break; 2737 case NL80211_CMD_RADAR_DETECT: 2738 nl80211_radar_event(drv, tb); 2739 break; 2740 case NL80211_CMD_STOP_AP: 2741 nl80211_stop_ap(drv, tb); 2742 break; 2743 default: 2744 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Ignored unknown event " 2745 "(cmd=%d)", cmd); 2746 break; 2747 } 2748} 2749 2750 2751static int process_drv_event(struct nl_msg *msg, void *arg) 2752{ 2753 struct wpa_driver_nl80211_data *drv = arg; 2754 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2755 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2756 struct i802_bss *bss; 2757 int ifidx = -1; 2758 2759 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2760 genlmsg_attrlen(gnlh, 0), NULL); 2761 2762 if (tb[NL80211_ATTR_IFINDEX]) { 2763 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 2764 2765 for (bss = &drv->first_bss; bss; bss = bss->next) 2766 if (ifidx == -1 || ifidx == bss->ifindex) { 2767 do_process_drv_event(bss, gnlh->cmd, tb); 2768 return NL_SKIP; 2769 } 2770 wpa_printf(MSG_DEBUG, 2771 "nl80211: Ignored event (cmd=%d) for foreign interface (ifindex %d)", 2772 gnlh->cmd, ifidx); 2773 } else if (tb[NL80211_ATTR_WDEV]) { 2774 u64 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 2775 wpa_printf(MSG_DEBUG, "nl80211: Process event on P2P device"); 2776 for (bss = &drv->first_bss; bss; bss = bss->next) { 2777 if (bss->wdev_id_set && wdev_id == bss->wdev_id) { 2778 do_process_drv_event(bss, gnlh->cmd, tb); 2779 return NL_SKIP; 2780 } 2781 } 2782 wpa_printf(MSG_DEBUG, 2783 "nl80211: Ignored event (cmd=%d) for foreign interface (wdev 0x%llx)", 2784 gnlh->cmd, (long long unsigned int) wdev_id); 2785 } 2786 2787 return NL_SKIP; 2788} 2789 2790 2791static int process_global_event(struct nl_msg *msg, void *arg) 2792{ 2793 struct nl80211_global *global = arg; 2794 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2795 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2796 struct wpa_driver_nl80211_data *drv, *tmp; 2797 int ifidx = -1; 2798 struct i802_bss *bss; 2799 u64 wdev_id = 0; 2800 int wdev_id_set = 0; 2801 2802 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2803 genlmsg_attrlen(gnlh, 0), NULL); 2804 2805 if (tb[NL80211_ATTR_IFINDEX]) 2806 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 2807 else if (tb[NL80211_ATTR_WDEV]) { 2808 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 2809 wdev_id_set = 1; 2810 } 2811 2812 dl_list_for_each_safe(drv, tmp, &global->interfaces, 2813 struct wpa_driver_nl80211_data, list) { 2814 for (bss = &drv->first_bss; bss; bss = bss->next) { 2815 if ((ifidx == -1 && !wdev_id_set) || 2816 ifidx == bss->ifindex || 2817 (wdev_id_set && bss->wdev_id_set && 2818 wdev_id == bss->wdev_id)) { 2819 do_process_drv_event(bss, gnlh->cmd, tb); 2820 return NL_SKIP; 2821 } 2822 } 2823 } 2824 2825 return NL_SKIP; 2826} 2827 2828 2829static int process_bss_event(struct nl_msg *msg, void *arg) 2830{ 2831 struct i802_bss *bss = arg; 2832 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2833 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2834 2835 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2836 genlmsg_attrlen(gnlh, 0), NULL); 2837 2838 wpa_printf(MSG_DEBUG, "nl80211: BSS Event %d (%s) received for %s", 2839 gnlh->cmd, nl80211_command_to_string(gnlh->cmd), 2840 bss->ifname); 2841 2842 switch (gnlh->cmd) { 2843 case NL80211_CMD_FRAME: 2844 case NL80211_CMD_FRAME_TX_STATUS: 2845 mlme_event(bss, gnlh->cmd, tb[NL80211_ATTR_FRAME], 2846 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 2847 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 2848 tb[NL80211_ATTR_COOKIE], 2849 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 2850 break; 2851 case NL80211_CMD_UNEXPECTED_FRAME: 2852 nl80211_spurious_frame(bss, tb, 0); 2853 break; 2854 case NL80211_CMD_UNEXPECTED_4ADDR_FRAME: 2855 nl80211_spurious_frame(bss, tb, 1); 2856 break; 2857 default: 2858 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event " 2859 "(cmd=%d)", gnlh->cmd); 2860 break; 2861 } 2862 2863 return NL_SKIP; 2864} 2865 2866 2867static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx, 2868 void *handle) 2869{ 2870 struct nl_cb *cb = eloop_ctx; 2871 2872 wpa_printf(MSG_MSGDUMP, "nl80211: Event message available"); 2873 2874 nl_recvmsgs(handle, cb); 2875} 2876 2877 2878/** 2879 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain 2880 * @priv: driver_nl80211 private data 2881 * @alpha2_arg: country to which to switch to 2882 * Returns: 0 on success, -1 on failure 2883 * 2884 * This asks nl80211 to set the regulatory domain for given 2885 * country ISO / IEC alpha2. 2886 */ 2887static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg) 2888{ 2889 struct i802_bss *bss = priv; 2890 struct wpa_driver_nl80211_data *drv = bss->drv; 2891 char alpha2[3]; 2892 struct nl_msg *msg; 2893 2894 msg = nlmsg_alloc(); 2895 if (!msg) 2896 return -ENOMEM; 2897 2898 alpha2[0] = alpha2_arg[0]; 2899 alpha2[1] = alpha2_arg[1]; 2900 alpha2[2] = '\0'; 2901 2902 nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG); 2903 2904 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2); 2905 if (send_and_recv_msgs(drv, msg, NULL, NULL)) 2906 return -EINVAL; 2907 return 0; 2908nla_put_failure: 2909 nlmsg_free(msg); 2910 return -EINVAL; 2911} 2912 2913 2914static int protocol_feature_handler(struct nl_msg *msg, void *arg) 2915{ 2916 u32 *feat = arg; 2917 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 2918 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2919 2920 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2921 genlmsg_attrlen(gnlh, 0), NULL); 2922 2923 if (tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]) 2924 *feat = nla_get_u32(tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]); 2925 2926 return NL_SKIP; 2927} 2928 2929 2930static u32 get_nl80211_protocol_features(struct wpa_driver_nl80211_data *drv) 2931{ 2932 u32 feat = 0; 2933 struct nl_msg *msg; 2934 2935 msg = nlmsg_alloc(); 2936 if (!msg) 2937 goto nla_put_failure; 2938 2939 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_PROTOCOL_FEATURES); 2940 if (send_and_recv_msgs(drv, msg, protocol_feature_handler, &feat) == 0) 2941 return feat; 2942 2943 msg = NULL; 2944nla_put_failure: 2945 nlmsg_free(msg); 2946 return 0; 2947} 2948 2949 2950struct wiphy_info_data { 2951 struct wpa_driver_nl80211_data *drv; 2952 struct wpa_driver_capa *capa; 2953 2954 unsigned int num_multichan_concurrent; 2955 2956 unsigned int error:1; 2957 unsigned int device_ap_sme:1; 2958 unsigned int poll_command_supported:1; 2959 unsigned int data_tx_status:1; 2960 unsigned int monitor_supported:1; 2961 unsigned int auth_supported:1; 2962 unsigned int connect_supported:1; 2963 unsigned int p2p_go_supported:1; 2964 unsigned int p2p_client_supported:1; 2965 unsigned int p2p_concurrent:1; 2966}; 2967 2968 2969static unsigned int probe_resp_offload_support(int supp_protocols) 2970{ 2971 unsigned int prot = 0; 2972 2973 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS) 2974 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS; 2975 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2) 2976 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2; 2977 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P) 2978 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P; 2979 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U) 2980 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING; 2981 2982 return prot; 2983} 2984 2985 2986static void wiphy_info_supported_iftypes(struct wiphy_info_data *info, 2987 struct nlattr *tb) 2988{ 2989 struct nlattr *nl_mode; 2990 int i; 2991 2992 if (tb == NULL) 2993 return; 2994 2995 nla_for_each_nested(nl_mode, tb, i) { 2996 switch (nla_type(nl_mode)) { 2997 case NL80211_IFTYPE_AP: 2998 info->capa->flags |= WPA_DRIVER_FLAGS_AP; 2999 break; 3000 case NL80211_IFTYPE_ADHOC: 3001 info->capa->flags |= WPA_DRIVER_FLAGS_IBSS; 3002 break; 3003 case NL80211_IFTYPE_P2P_DEVICE: 3004 info->capa->flags |= 3005 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 3006 break; 3007 case NL80211_IFTYPE_P2P_GO: 3008 info->p2p_go_supported = 1; 3009 break; 3010 case NL80211_IFTYPE_P2P_CLIENT: 3011 info->p2p_client_supported = 1; 3012 break; 3013 case NL80211_IFTYPE_MONITOR: 3014 info->monitor_supported = 1; 3015 break; 3016 } 3017 } 3018} 3019 3020 3021static int wiphy_info_iface_comb_process(struct wiphy_info_data *info, 3022 struct nlattr *nl_combi) 3023{ 3024 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB]; 3025 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT]; 3026 struct nlattr *nl_limit, *nl_mode; 3027 int err, rem_limit, rem_mode; 3028 int combination_has_p2p = 0, combination_has_mgd = 0; 3029 static struct nla_policy 3030 iface_combination_policy[NUM_NL80211_IFACE_COMB] = { 3031 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED }, 3032 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 }, 3033 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG }, 3034 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 }, 3035 [NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 }, 3036 }, 3037 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = { 3038 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED }, 3039 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 }, 3040 }; 3041 3042 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB, 3043 nl_combi, iface_combination_policy); 3044 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] || 3045 !tb_comb[NL80211_IFACE_COMB_MAXNUM] || 3046 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) 3047 return 0; /* broken combination */ 3048 3049 if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS]) 3050 info->capa->flags |= WPA_DRIVER_FLAGS_RADAR; 3051 3052 nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS], 3053 rem_limit) { 3054 err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT, 3055 nl_limit, iface_limit_policy); 3056 if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES]) 3057 return 0; /* broken combination */ 3058 3059 nla_for_each_nested(nl_mode, 3060 tb_limit[NL80211_IFACE_LIMIT_TYPES], 3061 rem_mode) { 3062 int ift = nla_type(nl_mode); 3063 if (ift == NL80211_IFTYPE_P2P_GO || 3064 ift == NL80211_IFTYPE_P2P_CLIENT) 3065 combination_has_p2p = 1; 3066 if (ift == NL80211_IFTYPE_STATION) 3067 combination_has_mgd = 1; 3068 } 3069 if (combination_has_p2p && combination_has_mgd) 3070 break; 3071 } 3072 3073 if (combination_has_p2p && combination_has_mgd) { 3074 info->p2p_concurrent = 1; 3075 info->num_multichan_concurrent = 3076 nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]); 3077 return 1; 3078 } 3079 3080 return 0; 3081} 3082 3083 3084static void wiphy_info_iface_comb(struct wiphy_info_data *info, 3085 struct nlattr *tb) 3086{ 3087 struct nlattr *nl_combi; 3088 int rem_combi; 3089 3090 if (tb == NULL) 3091 return; 3092 3093 nla_for_each_nested(nl_combi, tb, rem_combi) { 3094 if (wiphy_info_iface_comb_process(info, nl_combi) > 0) 3095 break; 3096 } 3097} 3098 3099 3100static void wiphy_info_supp_cmds(struct wiphy_info_data *info, 3101 struct nlattr *tb) 3102{ 3103 struct nlattr *nl_cmd; 3104 int i; 3105 3106 if (tb == NULL) 3107 return; 3108 3109 nla_for_each_nested(nl_cmd, tb, i) { 3110 switch (nla_get_u32(nl_cmd)) { 3111 case NL80211_CMD_AUTHENTICATE: 3112 info->auth_supported = 1; 3113 break; 3114 case NL80211_CMD_CONNECT: 3115 info->connect_supported = 1; 3116 break; 3117 case NL80211_CMD_START_SCHED_SCAN: 3118 info->capa->sched_scan_supported = 1; 3119 break; 3120 case NL80211_CMD_PROBE_CLIENT: 3121 info->poll_command_supported = 1; 3122 break; 3123 } 3124 } 3125} 3126 3127 3128static void wiphy_info_max_roc(struct wpa_driver_capa *capa, 3129 struct nlattr *tb) 3130{ 3131 if (tb) 3132 capa->max_remain_on_chan = nla_get_u32(tb); 3133} 3134 3135 3136static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls, 3137 struct nlattr *ext_setup) 3138{ 3139 if (tdls == NULL) 3140 return; 3141 3142 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported"); 3143 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT; 3144 3145 if (ext_setup) { 3146 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup"); 3147 capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP; 3148 } 3149} 3150 3151 3152static void wiphy_info_feature_flags(struct wiphy_info_data *info, 3153 struct nlattr *tb) 3154{ 3155 u32 flags; 3156 struct wpa_driver_capa *capa = info->capa; 3157 3158 if (tb == NULL) 3159 return; 3160 3161 flags = nla_get_u32(tb); 3162 3163 if (flags & NL80211_FEATURE_SK_TX_STATUS) 3164 info->data_tx_status = 1; 3165 3166 if (flags & NL80211_FEATURE_INACTIVITY_TIMER) 3167 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER; 3168 3169 if (flags & NL80211_FEATURE_SAE) 3170 capa->flags |= WPA_DRIVER_FLAGS_SAE; 3171 3172 if (flags & NL80211_FEATURE_NEED_OBSS_SCAN) 3173 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN; 3174} 3175 3176 3177static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa, 3178 struct nlattr *tb) 3179{ 3180 u32 protocols; 3181 3182 if (tb == NULL) 3183 return; 3184 3185 protocols = nla_get_u32(tb); 3186 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP " 3187 "mode"); 3188 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD; 3189 capa->probe_resp_offloads = probe_resp_offload_support(protocols); 3190} 3191 3192 3193static int wiphy_info_handler(struct nl_msg *msg, void *arg) 3194{ 3195 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3196 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3197 struct wiphy_info_data *info = arg; 3198 struct wpa_driver_capa *capa = info->capa; 3199 struct wpa_driver_nl80211_data *drv = info->drv; 3200 3201 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3202 genlmsg_attrlen(gnlh, 0), NULL); 3203 3204 if (tb[NL80211_ATTR_WIPHY_NAME]) 3205 os_strncpy(drv->phyname, 3206 nla_get_string(tb[NL80211_ATTR_WIPHY_NAME]), 3207 sizeof(drv->phyname)); 3208 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]) 3209 capa->max_scan_ssids = 3210 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]); 3211 3212 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]) 3213 capa->max_sched_scan_ssids = 3214 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]); 3215 3216 if (tb[NL80211_ATTR_MAX_MATCH_SETS]) 3217 capa->max_match_sets = 3218 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]); 3219 3220 if (tb[NL80211_ATTR_MAC_ACL_MAX]) 3221 capa->max_acl_mac_addrs = 3222 nla_get_u8(tb[NL80211_ATTR_MAC_ACL_MAX]); 3223 3224 wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]); 3225 wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]); 3226 wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]); 3227 3228 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) { 3229 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based " 3230 "off-channel TX"); 3231 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX; 3232 } 3233 3234 if (tb[NL80211_ATTR_ROAM_SUPPORT]) { 3235 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming"); 3236 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION; 3237 } 3238 3239 wiphy_info_max_roc(capa, 3240 tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]); 3241 3242 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD]) 3243 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD; 3244 3245 wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT], 3246 tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]); 3247 3248 if (tb[NL80211_ATTR_DEVICE_AP_SME]) 3249 info->device_ap_sme = 1; 3250 3251 wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]); 3252 wiphy_info_probe_resp_offload(capa, 3253 tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]); 3254 3255 if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] && 3256 drv->extended_capa == NULL) { 3257 drv->extended_capa = 3258 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3259 if (drv->extended_capa) { 3260 os_memcpy(drv->extended_capa, 3261 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 3262 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3263 drv->extended_capa_len = 3264 nla_len(tb[NL80211_ATTR_EXT_CAPA]); 3265 } 3266 drv->extended_capa_mask = 3267 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3268 if (drv->extended_capa_mask) { 3269 os_memcpy(drv->extended_capa_mask, 3270 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 3271 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3272 } else { 3273 os_free(drv->extended_capa); 3274 drv->extended_capa = NULL; 3275 drv->extended_capa_len = 0; 3276 } 3277 } 3278 3279 return NL_SKIP; 3280} 3281 3282 3283static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv, 3284 struct wiphy_info_data *info) 3285{ 3286 u32 feat; 3287 struct nl_msg *msg; 3288 3289 os_memset(info, 0, sizeof(*info)); 3290 info->capa = &drv->capa; 3291 info->drv = drv; 3292 3293 msg = nlmsg_alloc(); 3294 if (!msg) 3295 return -1; 3296 3297 feat = get_nl80211_protocol_features(drv); 3298 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 3299 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 3300 else 3301 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 3302 3303 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 3304 if (nl80211_set_iface_id(msg, &drv->first_bss) < 0) 3305 goto nla_put_failure; 3306 3307 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info)) 3308 return -1; 3309 3310 if (info->auth_supported) 3311 drv->capa.flags |= WPA_DRIVER_FLAGS_SME; 3312 else if (!info->connect_supported) { 3313 wpa_printf(MSG_INFO, "nl80211: Driver does not support " 3314 "authentication/association or connect commands"); 3315 info->error = 1; 3316 } 3317 3318 if (info->p2p_go_supported && info->p2p_client_supported) 3319 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE; 3320 if (info->p2p_concurrent) { 3321 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 3322 "interface (driver advertised support)"); 3323 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 3324 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 3325 } 3326 if (info->num_multichan_concurrent > 1) { 3327 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel " 3328 "concurrent (driver advertised support)"); 3329 drv->capa.num_multichan_concurrent = 3330 info->num_multichan_concurrent; 3331 } 3332 3333 /* default to 5000 since early versions of mac80211 don't set it */ 3334 if (!drv->capa.max_remain_on_chan) 3335 drv->capa.max_remain_on_chan = 5000; 3336 3337 return 0; 3338nla_put_failure: 3339 nlmsg_free(msg); 3340 return -1; 3341} 3342 3343 3344static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv) 3345{ 3346 struct wiphy_info_data info; 3347 if (wpa_driver_nl80211_get_info(drv, &info)) 3348 return -1; 3349 3350 if (info.error) 3351 return -1; 3352 3353 drv->has_capability = 1; 3354 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */ 3355 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA | 3356 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK | 3357 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 | 3358 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK; 3359 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 | 3360 WPA_DRIVER_CAPA_ENC_WEP104 | 3361 WPA_DRIVER_CAPA_ENC_TKIP | 3362 WPA_DRIVER_CAPA_ENC_CCMP; 3363 drv->capa.auth = WPA_DRIVER_AUTH_OPEN | 3364 WPA_DRIVER_AUTH_SHARED | 3365 WPA_DRIVER_AUTH_LEAP; 3366 3367 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES; 3368 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE; 3369 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3370 3371 if (!info.device_ap_sme) { 3372 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS; 3373 3374 /* 3375 * No AP SME is currently assumed to also indicate no AP MLME 3376 * in the driver/firmware. 3377 */ 3378 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME; 3379 } 3380 3381 drv->device_ap_sme = info.device_ap_sme; 3382 drv->poll_command_supported = info.poll_command_supported; 3383 drv->data_tx_status = info.data_tx_status; 3384 3385#ifdef ANDROID_P2P 3386 if(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) { 3387 /* Driver is new enough to support monitorless mode*/ 3388 wpa_printf(MSG_DEBUG, "nl80211: Driver is new " 3389 "enough to support monitor-less mode"); 3390 drv->use_monitor = 0; 3391 } 3392#else 3393 /* 3394 * If poll command and tx status are supported, mac80211 is new enough 3395 * to have everything we need to not need monitor interfaces. 3396 */ 3397 drv->use_monitor = !info.poll_command_supported || !info.data_tx_status; 3398#endif 3399 3400 if (drv->device_ap_sme && drv->use_monitor) { 3401 /* 3402 * Non-mac80211 drivers may not support monitor interface. 3403 * Make sure we do not get stuck with incorrect capability here 3404 * by explicitly testing this. 3405 */ 3406 if (!info.monitor_supported) { 3407 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor " 3408 "with device_ap_sme since no monitor mode " 3409 "support detected"); 3410 drv->use_monitor = 0; 3411 } 3412 } 3413 3414 /* 3415 * If we aren't going to use monitor interfaces, but the 3416 * driver doesn't support data TX status, we won't get TX 3417 * status for EAPOL frames. 3418 */ 3419 if (!drv->use_monitor && !info.data_tx_status) 3420 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3421 3422 return 0; 3423} 3424 3425 3426#ifdef ANDROID 3427static int android_genl_ctrl_resolve(struct nl_handle *handle, 3428 const char *name) 3429{ 3430 /* 3431 * Android ICS has very minimal genl_ctrl_resolve() implementation, so 3432 * need to work around that. 3433 */ 3434 struct nl_cache *cache = NULL; 3435 struct genl_family *nl80211 = NULL; 3436 int id = -1; 3437 3438 if (genl_ctrl_alloc_cache(handle, &cache) < 0) { 3439 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic " 3440 "netlink cache"); 3441 goto fail; 3442 } 3443 3444 nl80211 = genl_ctrl_search_by_name(cache, name); 3445 if (nl80211 == NULL) 3446 goto fail; 3447 3448 id = genl_family_get_id(nl80211); 3449 3450fail: 3451 if (nl80211) 3452 genl_family_put(nl80211); 3453 if (cache) 3454 nl_cache_free(cache); 3455 3456 return id; 3457} 3458#define genl_ctrl_resolve android_genl_ctrl_resolve 3459#endif /* ANDROID */ 3460 3461 3462static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global) 3463{ 3464 int ret; 3465 3466 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3467 if (global->nl_cb == NULL) { 3468 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " 3469 "callbacks"); 3470 return -1; 3471 } 3472 3473 global->nl = nl_create_handle(global->nl_cb, "nl"); 3474 if (global->nl == NULL) 3475 goto err; 3476 3477 global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211"); 3478 if (global->nl80211_id < 0) { 3479 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not " 3480 "found"); 3481 goto err; 3482 } 3483 3484 global->nl_event = nl_create_handle(global->nl_cb, "event"); 3485 if (global->nl_event == NULL) 3486 goto err; 3487 3488 ret = nl_get_multicast_id(global, "nl80211", "scan"); 3489 if (ret >= 0) 3490 ret = nl_socket_add_membership(global->nl_event, ret); 3491 if (ret < 0) { 3492 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 3493 "membership for scan events: %d (%s)", 3494 ret, strerror(-ret)); 3495 goto err; 3496 } 3497 3498 ret = nl_get_multicast_id(global, "nl80211", "mlme"); 3499 if (ret >= 0) 3500 ret = nl_socket_add_membership(global->nl_event, ret); 3501 if (ret < 0) { 3502 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 3503 "membership for mlme events: %d (%s)", 3504 ret, strerror(-ret)); 3505 goto err; 3506 } 3507 3508 ret = nl_get_multicast_id(global, "nl80211", "regulatory"); 3509 if (ret >= 0) 3510 ret = nl_socket_add_membership(global->nl_event, ret); 3511 if (ret < 0) { 3512 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " 3513 "membership for regulatory events: %d (%s)", 3514 ret, strerror(-ret)); 3515 /* Continue without regulatory events */ 3516 } 3517 3518 nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3519 no_seq_check, NULL); 3520 nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3521 process_global_event, global); 3522 3523 eloop_register_read_sock(nl_socket_get_fd(global->nl_event), 3524 wpa_driver_nl80211_event_receive, 3525 global->nl_cb, global->nl_event); 3526 3527 return 0; 3528 3529err: 3530 nl_destroy_handles(&global->nl_event); 3531 nl_destroy_handles(&global->nl); 3532 nl_cb_put(global->nl_cb); 3533 global->nl_cb = NULL; 3534 return -1; 3535} 3536 3537 3538static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv) 3539{ 3540 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3541 if (!drv->nl_cb) { 3542 wpa_printf(MSG_ERROR, "nl80211: Failed to alloc cb struct"); 3543 return -1; 3544 } 3545 3546 nl_cb_set(drv->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3547 no_seq_check, NULL); 3548 nl_cb_set(drv->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3549 process_drv_event, drv); 3550 3551 return 0; 3552} 3553 3554 3555static void wpa_driver_nl80211_rfkill_blocked(void *ctx) 3556{ 3557 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked"); 3558 /* 3559 * This may be for any interface; use ifdown event to disable 3560 * interface. 3561 */ 3562} 3563 3564 3565static void wpa_driver_nl80211_rfkill_unblocked(void *ctx) 3566{ 3567 struct wpa_driver_nl80211_data *drv = ctx; 3568 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked"); 3569 if (i802_set_iface_flags(&drv->first_bss, 1)) { 3570 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP " 3571 "after rfkill unblock"); 3572 return; 3573 } 3574 /* rtnetlink ifup handler will report interface as enabled */ 3575} 3576 3577 3578static void wpa_driver_nl80211_handle_eapol_tx_status(int sock, 3579 void *eloop_ctx, 3580 void *handle) 3581{ 3582 struct wpa_driver_nl80211_data *drv = eloop_ctx; 3583 u8 data[2048]; 3584 struct msghdr msg; 3585 struct iovec entry; 3586 u8 control[512]; 3587 struct cmsghdr *cmsg; 3588 int res, found_ee = 0, found_wifi = 0, acked = 0; 3589 union wpa_event_data event; 3590 3591 memset(&msg, 0, sizeof(msg)); 3592 msg.msg_iov = &entry; 3593 msg.msg_iovlen = 1; 3594 entry.iov_base = data; 3595 entry.iov_len = sizeof(data); 3596 msg.msg_control = &control; 3597 msg.msg_controllen = sizeof(control); 3598 3599 res = recvmsg(sock, &msg, MSG_ERRQUEUE); 3600 /* if error or not fitting 802.3 header, return */ 3601 if (res < 14) 3602 return; 3603 3604 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) 3605 { 3606 if (cmsg->cmsg_level == SOL_SOCKET && 3607 cmsg->cmsg_type == SCM_WIFI_STATUS) { 3608 int *ack; 3609 3610 found_wifi = 1; 3611 ack = (void *)CMSG_DATA(cmsg); 3612 acked = *ack; 3613 } 3614 3615 if (cmsg->cmsg_level == SOL_PACKET && 3616 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) { 3617 struct sock_extended_err *err = 3618 (struct sock_extended_err *)CMSG_DATA(cmsg); 3619 3620 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS) 3621 found_ee = 1; 3622 } 3623 } 3624 3625 if (!found_ee || !found_wifi) 3626 return; 3627 3628 memset(&event, 0, sizeof(event)); 3629 event.eapol_tx_status.dst = data; 3630 event.eapol_tx_status.data = data + 14; 3631 event.eapol_tx_status.data_len = res - 14; 3632 event.eapol_tx_status.ack = acked; 3633 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event); 3634} 3635 3636 3637static int nl80211_init_bss(struct i802_bss *bss) 3638{ 3639 bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3640 if (!bss->nl_cb) 3641 return -1; 3642 3643 nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3644 no_seq_check, NULL); 3645 nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3646 process_bss_event, bss); 3647 3648 return 0; 3649} 3650 3651 3652static void nl80211_destroy_bss(struct i802_bss *bss) 3653{ 3654 nl_cb_put(bss->nl_cb); 3655 bss->nl_cb = NULL; 3656} 3657 3658 3659/** 3660 * wpa_driver_nl80211_init - Initialize nl80211 driver interface 3661 * @ctx: context to be used when calling wpa_supplicant functions, 3662 * e.g., wpa_supplicant_event() 3663 * @ifname: interface name, e.g., wlan0 3664 * @global_priv: private driver global data from global_init() 3665 * Returns: Pointer to private data, %NULL on failure 3666 */ 3667static void * wpa_driver_nl80211_init(void *ctx, const char *ifname, 3668 void *global_priv) 3669{ 3670 struct wpa_driver_nl80211_data *drv; 3671 struct rfkill_config *rcfg; 3672 struct i802_bss *bss; 3673 3674 if (global_priv == NULL) 3675 return NULL; 3676 drv = os_zalloc(sizeof(*drv)); 3677 if (drv == NULL) 3678 return NULL; 3679 drv->global = global_priv; 3680 drv->ctx = ctx; 3681 bss = &drv->first_bss; 3682 bss->drv = drv; 3683 bss->ctx = ctx; 3684 3685 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname)); 3686 drv->monitor_ifidx = -1; 3687 drv->monitor_sock = -1; 3688 drv->eapol_tx_sock = -1; 3689 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 3690 3691 if (wpa_driver_nl80211_init_nl(drv)) { 3692 os_free(drv); 3693 return NULL; 3694 } 3695 3696 if (nl80211_init_bss(bss)) 3697 goto failed; 3698 3699 rcfg = os_zalloc(sizeof(*rcfg)); 3700 if (rcfg == NULL) 3701 goto failed; 3702 rcfg->ctx = drv; 3703 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname)); 3704 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked; 3705 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked; 3706 drv->rfkill = rfkill_init(rcfg); 3707 if (drv->rfkill == NULL) { 3708 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available"); 3709 os_free(rcfg); 3710 } 3711 3712 if (wpa_driver_nl80211_finish_drv_init(drv)) 3713 goto failed; 3714 3715 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0); 3716 if (drv->eapol_tx_sock < 0) 3717 goto failed; 3718 3719 if (drv->data_tx_status) { 3720 int enabled = 1; 3721 3722 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS, 3723 &enabled, sizeof(enabled)) < 0) { 3724 wpa_printf(MSG_DEBUG, 3725 "nl80211: wifi status sockopt failed\n"); 3726 drv->data_tx_status = 0; 3727 if (!drv->use_monitor) 3728 drv->capa.flags &= 3729 ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3730 } else { 3731 eloop_register_read_sock(drv->eapol_tx_sock, 3732 wpa_driver_nl80211_handle_eapol_tx_status, 3733 drv, NULL); 3734 } 3735 } 3736 3737 if (drv->global) { 3738 dl_list_add(&drv->global->interfaces, &drv->list); 3739 drv->in_interface_list = 1; 3740 } 3741 3742 return bss; 3743 3744failed: 3745 wpa_driver_nl80211_deinit(bss); 3746 return NULL; 3747} 3748 3749 3750static int nl80211_register_frame(struct i802_bss *bss, 3751 struct nl_handle *nl_handle, 3752 u16 type, const u8 *match, size_t match_len) 3753{ 3754 struct wpa_driver_nl80211_data *drv = bss->drv; 3755 struct nl_msg *msg; 3756 int ret = -1; 3757 3758 msg = nlmsg_alloc(); 3759 if (!msg) 3760 return -1; 3761 3762 wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x nl_handle=%p", 3763 type, nl_handle); 3764 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", 3765 match, match_len); 3766 3767 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION); 3768 3769 if (nl80211_set_iface_id(msg, bss) < 0) 3770 goto nla_put_failure; 3771 3772 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type); 3773 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match); 3774 3775 ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL); 3776 msg = NULL; 3777 if (ret) { 3778 wpa_printf(MSG_DEBUG, "nl80211: Register frame command " 3779 "failed (type=%u): ret=%d (%s)", 3780 type, ret, strerror(-ret)); 3781 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", 3782 match, match_len); 3783 goto nla_put_failure; 3784 } 3785 ret = 0; 3786nla_put_failure: 3787 nlmsg_free(msg); 3788 return ret; 3789} 3790 3791 3792static int nl80211_alloc_mgmt_handle(struct i802_bss *bss) 3793{ 3794 struct wpa_driver_nl80211_data *drv = bss->drv; 3795 3796 if (bss->nl_mgmt) { 3797 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting " 3798 "already on! (nl_mgmt=%p)", bss->nl_mgmt); 3799 return -1; 3800 } 3801 3802 bss->nl_mgmt = nl_create_handle(drv->nl_cb, "mgmt"); 3803 if (bss->nl_mgmt == NULL) 3804 return -1; 3805 3806 eloop_register_read_sock(nl_socket_get_fd(bss->nl_mgmt), 3807 wpa_driver_nl80211_event_receive, bss->nl_cb, 3808 bss->nl_mgmt); 3809 3810 return 0; 3811} 3812 3813 3814static int nl80211_register_action_frame(struct i802_bss *bss, 3815 const u8 *match, size_t match_len) 3816{ 3817 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4); 3818 return nl80211_register_frame(bss, bss->nl_mgmt, 3819 type, match, match_len); 3820} 3821 3822 3823static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss) 3824{ 3825 struct wpa_driver_nl80211_data *drv = bss->drv; 3826 3827 if (nl80211_alloc_mgmt_handle(bss)) 3828 return -1; 3829 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP " 3830 "handle %p", bss->nl_mgmt); 3831 3832#ifdef CONFIG_INTERWORKING 3833 /* QoS Map Configure */ 3834 if (nl80211_register_action_frame(bss, (u8 *) "\x01\x04", 2) < 0) 3835 return -1; 3836#endif /* CONFIG_INTERWORKING */ 3837#if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING) 3838 /* GAS Initial Request */ 3839 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0) 3840 return -1; 3841 /* GAS Initial Response */ 3842 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0) 3843 return -1; 3844 /* GAS Comeback Request */ 3845 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0) 3846 return -1; 3847 /* GAS Comeback Response */ 3848 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0) 3849 return -1; 3850#endif /* CONFIG_P2P || CONFIG_INTERWORKING */ 3851#ifdef CONFIG_P2P 3852 /* P2P Public Action */ 3853 if (nl80211_register_action_frame(bss, 3854 (u8 *) "\x04\x09\x50\x6f\x9a\x09", 3855 6) < 0) 3856 return -1; 3857 /* P2P Action */ 3858 if (nl80211_register_action_frame(bss, 3859 (u8 *) "\x7f\x50\x6f\x9a\x09", 3860 5) < 0) 3861 return -1; 3862#endif /* CONFIG_P2P */ 3863#ifdef CONFIG_IEEE80211W 3864 /* SA Query Response */ 3865 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0) 3866 return -1; 3867#endif /* CONFIG_IEEE80211W */ 3868#ifdef CONFIG_TDLS 3869 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) { 3870 /* TDLS Discovery Response */ 3871 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) < 3872 0) 3873 return -1; 3874 } 3875#endif /* CONFIG_TDLS */ 3876 3877 /* FT Action frames */ 3878 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0) 3879 return -1; 3880 else 3881 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT | 3882 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK; 3883 3884 /* WNM - BSS Transition Management Request */ 3885 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0) 3886 return -1; 3887 /* WNM-Sleep Mode Response */ 3888 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x11", 2) < 0) 3889 return -1; 3890 3891 return 0; 3892} 3893 3894 3895static int nl80211_register_spurious_class3(struct i802_bss *bss) 3896{ 3897 struct wpa_driver_nl80211_data *drv = bss->drv; 3898 struct nl_msg *msg; 3899 int ret = -1; 3900 3901 msg = nlmsg_alloc(); 3902 if (!msg) 3903 return -1; 3904 3905 nl80211_cmd(drv, msg, 0, NL80211_CMD_UNEXPECTED_FRAME); 3906 3907 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 3908 3909 ret = send_and_recv(drv->global, bss->nl_mgmt, msg, NULL, NULL); 3910 msg = NULL; 3911 if (ret) { 3912 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 " 3913 "failed: ret=%d (%s)", 3914 ret, strerror(-ret)); 3915 goto nla_put_failure; 3916 } 3917 ret = 0; 3918nla_put_failure: 3919 nlmsg_free(msg); 3920 return ret; 3921} 3922 3923 3924static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss) 3925{ 3926 static const int stypes[] = { 3927 WLAN_FC_STYPE_AUTH, 3928 WLAN_FC_STYPE_ASSOC_REQ, 3929 WLAN_FC_STYPE_REASSOC_REQ, 3930 WLAN_FC_STYPE_DISASSOC, 3931 WLAN_FC_STYPE_DEAUTH, 3932 WLAN_FC_STYPE_ACTION, 3933 WLAN_FC_STYPE_PROBE_REQ, 3934/* Beacon doesn't work as mac80211 doesn't currently allow 3935 * it, but it wouldn't really be the right thing anyway as 3936 * it isn't per interface ... maybe just dump the scan 3937 * results periodically for OLBC? 3938 */ 3939// WLAN_FC_STYPE_BEACON, 3940 }; 3941 unsigned int i; 3942 3943 if (nl80211_alloc_mgmt_handle(bss)) 3944 return -1; 3945 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 3946 "handle %p", bss->nl_mgmt); 3947 3948 for (i = 0; i < sizeof(stypes) / sizeof(stypes[0]); i++) { 3949 if (nl80211_register_frame(bss, bss->nl_mgmt, 3950 (WLAN_FC_TYPE_MGMT << 2) | 3951 (stypes[i] << 4), 3952 NULL, 0) < 0) { 3953 goto out_err; 3954 } 3955 } 3956 3957 if (nl80211_register_spurious_class3(bss)) 3958 goto out_err; 3959 3960 if (nl80211_get_wiphy_data_ap(bss) == NULL) 3961 goto out_err; 3962 3963 return 0; 3964 3965out_err: 3966 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt)); 3967 nl_destroy_handles(&bss->nl_mgmt); 3968 return -1; 3969} 3970 3971 3972static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss) 3973{ 3974 if (nl80211_alloc_mgmt_handle(bss)) 3975 return -1; 3976 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 3977 "handle %p (device SME)", bss->nl_mgmt); 3978 3979 if (nl80211_register_frame(bss, bss->nl_mgmt, 3980 (WLAN_FC_TYPE_MGMT << 2) | 3981 (WLAN_FC_STYPE_ACTION << 4), 3982 NULL, 0) < 0) 3983 goto out_err; 3984 3985 return 0; 3986 3987out_err: 3988 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt)); 3989 nl_destroy_handles(&bss->nl_mgmt); 3990 return -1; 3991} 3992 3993 3994static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason) 3995{ 3996 if (bss->nl_mgmt == NULL) 3997 return; 3998 wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p " 3999 "(%s)", bss->nl_mgmt, reason); 4000 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt)); 4001 nl_destroy_handles(&bss->nl_mgmt); 4002 4003 nl80211_put_wiphy_data_ap(bss); 4004} 4005 4006 4007static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx) 4008{ 4009 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL); 4010} 4011 4012 4013static void nl80211_del_p2pdev(struct i802_bss *bss) 4014{ 4015 struct wpa_driver_nl80211_data *drv = bss->drv; 4016 struct nl_msg *msg; 4017 int ret; 4018 4019 msg = nlmsg_alloc(); 4020 if (!msg) 4021 return; 4022 4023 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 4024 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 4025 4026 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4027 msg = NULL; 4028 4029 wpa_printf(MSG_DEBUG, "nl80211: Delete P2P Device %s (0x%llx): %s", 4030 bss->ifname, (long long unsigned int) bss->wdev_id, 4031 strerror(ret)); 4032 4033nla_put_failure: 4034 nlmsg_free(msg); 4035} 4036 4037 4038static int nl80211_set_p2pdev(struct i802_bss *bss, int start) 4039{ 4040 struct wpa_driver_nl80211_data *drv = bss->drv; 4041 struct nl_msg *msg; 4042 int ret = -1; 4043 4044 msg = nlmsg_alloc(); 4045 if (!msg) 4046 return -1; 4047 4048 if (start) 4049 nl80211_cmd(drv, msg, 0, NL80211_CMD_START_P2P_DEVICE); 4050 else 4051 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_P2P_DEVICE); 4052 4053 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 4054 4055 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4056 msg = NULL; 4057 4058 wpa_printf(MSG_DEBUG, "nl80211: %s P2P Device %s (0x%llx): %s", 4059 start ? "Start" : "Stop", 4060 bss->ifname, (long long unsigned int) bss->wdev_id, 4061 strerror(ret)); 4062 4063nla_put_failure: 4064 nlmsg_free(msg); 4065 return ret; 4066} 4067 4068 4069static int i802_set_iface_flags(struct i802_bss *bss, int up) 4070{ 4071 enum nl80211_iftype nlmode; 4072 4073 nlmode = nl80211_get_ifmode(bss); 4074 if (nlmode != NL80211_IFTYPE_P2P_DEVICE) { 4075 return linux_set_iface_flags(bss->drv->global->ioctl_sock, 4076 bss->ifname, up); 4077 } 4078 4079 /* P2P Device has start/stop which is equivalent */ 4080 return nl80211_set_p2pdev(bss, up); 4081} 4082 4083 4084static int 4085wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv) 4086{ 4087#ifndef HOSTAPD 4088 enum nl80211_iftype nlmode = NL80211_IFTYPE_STATION; 4089#endif /* HOSTAPD */ 4090 struct i802_bss *bss = &drv->first_bss; 4091 int send_rfkill_event = 0; 4092 4093 drv->ifindex = if_nametoindex(bss->ifname); 4094 bss->ifindex = drv->ifindex; 4095 bss->wdev_id = drv->global->if_add_wdevid; 4096 bss->wdev_id_set = drv->global->if_add_wdevid_set; 4097 4098 bss->if_dynamic = drv->ifindex == drv->global->if_add_ifindex; 4099 bss->if_dynamic = bss->if_dynamic || drv->global->if_add_wdevid_set; 4100 drv->global->if_add_wdevid_set = 0; 4101 4102 if (wpa_driver_nl80211_capa(drv)) 4103 return -1; 4104 4105 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s", 4106 bss->ifname, drv->phyname); 4107 4108#ifndef HOSTAPD 4109 if (bss->if_dynamic) 4110 nlmode = nl80211_get_ifmode(bss); 4111 4112 /* 4113 * Make sure the interface starts up in station mode unless this is a 4114 * dynamically added interface (e.g., P2P) that was already configured 4115 * with proper iftype. 4116 */ 4117 if (wpa_driver_nl80211_set_mode(bss, nlmode) < 0) { 4118 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver to use managed mode"); 4119 return -1; 4120 } 4121 drv->nlmode = nlmode; 4122 4123 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { 4124 int ret = nl80211_set_p2pdev(bss, 1); 4125 if (ret < 0) 4126 wpa_printf(MSG_ERROR, "nl80211: Could not start P2P device"); 4127 nl80211_get_macaddr(bss); 4128 return ret; 4129 } 4130 4131 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) { 4132 if (rfkill_is_blocked(drv->rfkill)) { 4133 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable " 4134 "interface '%s' due to rfkill", 4135 bss->ifname); 4136 drv->if_disabled = 1; 4137 send_rfkill_event = 1; 4138 } else { 4139 wpa_printf(MSG_ERROR, "nl80211: Could not set " 4140 "interface '%s' UP", bss->ifname); 4141 return -1; 4142 } 4143 } 4144 4145 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 4146 1, IF_OPER_DORMANT); 4147#endif /* HOSTAPD */ 4148 4149 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 4150 bss->addr)) 4151 return -1; 4152 4153 if (send_rfkill_event) { 4154 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill, 4155 drv, drv->ctx); 4156 } 4157 4158 return 0; 4159} 4160 4161 4162static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv) 4163{ 4164 struct nl_msg *msg; 4165 4166 msg = nlmsg_alloc(); 4167 if (!msg) 4168 return -ENOMEM; 4169 4170 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON); 4171 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4172 4173 return send_and_recv_msgs(drv, msg, NULL, NULL); 4174 nla_put_failure: 4175 nlmsg_free(msg); 4176 return -ENOBUFS; 4177} 4178 4179 4180/** 4181 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface 4182 * @bss: Pointer to private nl80211 data from wpa_driver_nl80211_init() 4183 * 4184 * Shut down driver interface and processing of driver events. Free 4185 * private data buffer if one was allocated in wpa_driver_nl80211_init(). 4186 */ 4187static void wpa_driver_nl80211_deinit(struct i802_bss *bss) 4188{ 4189 struct wpa_driver_nl80211_data *drv = bss->drv; 4190 4191 bss->in_deinit = 1; 4192 if (drv->data_tx_status) 4193 eloop_unregister_read_sock(drv->eapol_tx_sock); 4194 if (drv->eapol_tx_sock >= 0) 4195 close(drv->eapol_tx_sock); 4196 4197 if (bss->nl_preq) 4198 wpa_driver_nl80211_probe_req_report(bss, 0); 4199 if (bss->added_if_into_bridge) { 4200 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 4201 bss->ifname) < 0) 4202 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 4203 "interface %s from bridge %s: %s", 4204 bss->ifname, bss->brname, strerror(errno)); 4205 } 4206 if (bss->added_bridge) { 4207 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 4208 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 4209 "bridge %s: %s", 4210 bss->brname, strerror(errno)); 4211 } 4212 4213 nl80211_remove_monitor_interface(drv); 4214 4215 if (is_ap_interface(drv->nlmode)) 4216 wpa_driver_nl80211_del_beacon(drv); 4217 4218#ifdef HOSTAPD 4219 if (drv->last_freq_ht) { 4220 /* Clear HT flags from the driver */ 4221 struct hostapd_freq_params freq; 4222 os_memset(&freq, 0, sizeof(freq)); 4223 freq.freq = drv->last_freq; 4224 wpa_driver_nl80211_set_freq(bss, &freq); 4225 } 4226 4227 if (drv->eapol_sock >= 0) { 4228 eloop_unregister_read_sock(drv->eapol_sock); 4229 close(drv->eapol_sock); 4230 } 4231 4232 if (drv->if_indices != drv->default_if_indices) 4233 os_free(drv->if_indices); 4234#endif /* HOSTAPD */ 4235 4236 if (drv->disabled_11b_rates) 4237 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 4238 4239 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0, 4240 IF_OPER_UP); 4241 rfkill_deinit(drv->rfkill); 4242 4243 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 4244 4245 (void) i802_set_iface_flags(bss, 0); 4246 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) { 4247 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION); 4248 nl80211_mgmt_unsubscribe(bss, "deinit"); 4249 } else { 4250 nl80211_mgmt_unsubscribe(bss, "deinit"); 4251 nl80211_del_p2pdev(bss); 4252 } 4253 nl_cb_put(drv->nl_cb); 4254 4255 nl80211_destroy_bss(&drv->first_bss); 4256 4257 os_free(drv->filter_ssids); 4258 4259 os_free(drv->auth_ie); 4260 4261 if (drv->in_interface_list) 4262 dl_list_del(&drv->list); 4263 4264 os_free(drv->extended_capa); 4265 os_free(drv->extended_capa_mask); 4266 os_free(drv); 4267} 4268 4269 4270/** 4271 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion 4272 * @eloop_ctx: Driver private data 4273 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init() 4274 * 4275 * This function can be used as registered timeout when starting a scan to 4276 * generate a scan completed event if the driver does not report this. 4277 */ 4278static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx) 4279{ 4280 struct wpa_driver_nl80211_data *drv = eloop_ctx; 4281 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) { 4282 wpa_driver_nl80211_set_mode(&drv->first_bss, 4283 drv->ap_scan_as_station); 4284 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 4285 } 4286 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results"); 4287 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL); 4288} 4289 4290 4291static struct nl_msg * 4292nl80211_scan_common(struct wpa_driver_nl80211_data *drv, u8 cmd, 4293 struct wpa_driver_scan_params *params, u64 *wdev_id) 4294{ 4295 struct nl_msg *msg; 4296 size_t i; 4297 4298 msg = nlmsg_alloc(); 4299 if (!msg) 4300 return NULL; 4301 4302 nl80211_cmd(drv, msg, 0, cmd); 4303 4304 if (!wdev_id) 4305 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4306 else 4307 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, *wdev_id); 4308 4309 if (params->num_ssids) { 4310 struct nlattr *ssids; 4311 4312 ssids = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); 4313 if (ssids == NULL) 4314 goto fail; 4315 for (i = 0; i < params->num_ssids; i++) { 4316 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID", 4317 params->ssids[i].ssid, 4318 params->ssids[i].ssid_len); 4319 if (nla_put(msg, i + 1, params->ssids[i].ssid_len, 4320 params->ssids[i].ssid) < 0) 4321 goto fail; 4322 } 4323 nla_nest_end(msg, ssids); 4324 } 4325 4326 if (params->extra_ies) { 4327 wpa_hexdump(MSG_MSGDUMP, "nl80211: Scan extra IEs", 4328 params->extra_ies, params->extra_ies_len); 4329 if (nla_put(msg, NL80211_ATTR_IE, params->extra_ies_len, 4330 params->extra_ies) < 0) 4331 goto fail; 4332 } 4333 4334 if (params->freqs) { 4335 struct nlattr *freqs; 4336 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); 4337 if (freqs == NULL) 4338 goto fail; 4339 for (i = 0; params->freqs[i]; i++) { 4340 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u " 4341 "MHz", params->freqs[i]); 4342 if (nla_put_u32(msg, i + 1, params->freqs[i]) < 0) 4343 goto fail; 4344 } 4345 nla_nest_end(msg, freqs); 4346 } 4347 4348 os_free(drv->filter_ssids); 4349 drv->filter_ssids = params->filter_ssids; 4350 params->filter_ssids = NULL; 4351 drv->num_filter_ssids = params->num_filter_ssids; 4352 4353 return msg; 4354 4355fail: 4356nla_put_failure: 4357 nlmsg_free(msg); 4358 return NULL; 4359} 4360 4361 4362/** 4363 * wpa_driver_nl80211_scan - Request the driver to initiate scan 4364 * @bss: Pointer to private driver data from wpa_driver_nl80211_init() 4365 * @params: Scan parameters 4366 * Returns: 0 on success, -1 on failure 4367 */ 4368static int wpa_driver_nl80211_scan(struct i802_bss *bss, 4369 struct wpa_driver_scan_params *params) 4370{ 4371 struct wpa_driver_nl80211_data *drv = bss->drv; 4372 int ret = -1, timeout; 4373 struct nl_msg *msg = NULL; 4374 4375 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: scan request"); 4376 drv->scan_for_auth = 0; 4377 4378 msg = nl80211_scan_common(drv, NL80211_CMD_TRIGGER_SCAN, params, 4379 bss->wdev_id_set ? &bss->wdev_id : NULL); 4380 if (!msg) 4381 return -1; 4382 4383 if (params->p2p_probe) { 4384 struct nlattr *rates; 4385 4386 wpa_printf(MSG_DEBUG, "nl80211: P2P probe - mask SuppRates"); 4387 4388 rates = nla_nest_start(msg, NL80211_ATTR_SCAN_SUPP_RATES); 4389 if (rates == NULL) 4390 goto nla_put_failure; 4391 4392 /* 4393 * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates 4394 * by masking out everything else apart from the OFDM rates 6, 4395 * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz 4396 * rates are left enabled. 4397 */ 4398 NLA_PUT(msg, NL80211_BAND_2GHZ, 8, 4399 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 4400 nla_nest_end(msg, rates); 4401 4402 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 4403 } 4404 4405 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4406 msg = NULL; 4407 if (ret) { 4408 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d " 4409 "(%s)", ret, strerror(-ret)); 4410#ifdef HOSTAPD 4411 if (is_ap_interface(drv->nlmode)) { 4412 /* 4413 * mac80211 does not allow scan requests in AP mode, so 4414 * try to do this in station mode. 4415 */ 4416 if (wpa_driver_nl80211_set_mode( 4417 bss, NL80211_IFTYPE_STATION)) 4418 goto nla_put_failure; 4419 4420 if (wpa_driver_nl80211_scan(bss, params)) { 4421 wpa_driver_nl80211_set_mode(bss, drv->nlmode); 4422 goto nla_put_failure; 4423 } 4424 4425 /* Restore AP mode when processing scan results */ 4426 drv->ap_scan_as_station = drv->nlmode; 4427 ret = 0; 4428 } else 4429 goto nla_put_failure; 4430#else /* HOSTAPD */ 4431 goto nla_put_failure; 4432#endif /* HOSTAPD */ 4433 } 4434 4435 drv->scan_state = SCAN_REQUESTED; 4436 /* Not all drivers generate "scan completed" wireless event, so try to 4437 * read results after a timeout. */ 4438 timeout = 10; 4439 if (drv->scan_complete_events) { 4440 /* 4441 * The driver seems to deliver events to notify when scan is 4442 * complete, so use longer timeout to avoid race conditions 4443 * with scanning and following association request. 4444 */ 4445 timeout = 30; 4446 } 4447 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d " 4448 "seconds", ret, timeout); 4449 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 4450 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout, 4451 drv, drv->ctx); 4452 4453nla_put_failure: 4454 nlmsg_free(msg); 4455 return ret; 4456} 4457 4458 4459/** 4460 * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan 4461 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 4462 * @params: Scan parameters 4463 * @interval: Interval between scan cycles in milliseconds 4464 * Returns: 0 on success, -1 on failure or if not supported 4465 */ 4466static int wpa_driver_nl80211_sched_scan(void *priv, 4467 struct wpa_driver_scan_params *params, 4468 u32 interval) 4469{ 4470 struct i802_bss *bss = priv; 4471 struct wpa_driver_nl80211_data *drv = bss->drv; 4472 int ret = -1; 4473 struct nl_msg *msg; 4474 size_t i; 4475 4476 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: sched_scan request"); 4477 4478#ifdef ANDROID 4479 if (!drv->capa.sched_scan_supported) 4480 return android_pno_start(bss, params); 4481#endif /* ANDROID */ 4482 4483 msg = nl80211_scan_common(drv, NL80211_CMD_START_SCHED_SCAN, params, 4484 bss->wdev_id_set ? &bss->wdev_id : NULL); 4485 if (!msg) 4486 goto nla_put_failure; 4487 4488 NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval); 4489 4490 if ((drv->num_filter_ssids && 4491 (int) drv->num_filter_ssids <= drv->capa.max_match_sets) || 4492 params->filter_rssi) { 4493 struct nlattr *match_sets; 4494 match_sets = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH); 4495 if (match_sets == NULL) 4496 goto nla_put_failure; 4497 4498 for (i = 0; i < drv->num_filter_ssids; i++) { 4499 struct nlattr *match_set_ssid; 4500 wpa_hexdump_ascii(MSG_MSGDUMP, 4501 "nl80211: Sched scan filter SSID", 4502 drv->filter_ssids[i].ssid, 4503 drv->filter_ssids[i].ssid_len); 4504 4505 match_set_ssid = nla_nest_start(msg, i + 1); 4506 if (match_set_ssid == NULL) 4507 goto nla_put_failure; 4508 NLA_PUT(msg, NL80211_ATTR_SCHED_SCAN_MATCH_SSID, 4509 drv->filter_ssids[i].ssid_len, 4510 drv->filter_ssids[i].ssid); 4511 4512 nla_nest_end(msg, match_set_ssid); 4513 } 4514 4515 if (params->filter_rssi) { 4516 struct nlattr *match_set_rssi; 4517 match_set_rssi = nla_nest_start(msg, 0); 4518 if (match_set_rssi == NULL) 4519 goto nla_put_failure; 4520 NLA_PUT_U32(msg, NL80211_SCHED_SCAN_MATCH_ATTR_RSSI, 4521 params->filter_rssi); 4522 wpa_printf(MSG_MSGDUMP, 4523 "nl80211: Sched scan RSSI filter %d dBm", 4524 params->filter_rssi); 4525 nla_nest_end(msg, match_set_rssi); 4526 } 4527 4528 nla_nest_end(msg, match_sets); 4529 } 4530 4531 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4532 4533 /* TODO: if we get an error here, we should fall back to normal scan */ 4534 4535 msg = NULL; 4536 if (ret) { 4537 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: " 4538 "ret=%d (%s)", ret, strerror(-ret)); 4539 goto nla_put_failure; 4540 } 4541 4542 wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - " 4543 "scan interval %d msec", ret, interval); 4544 4545nla_put_failure: 4546 nlmsg_free(msg); 4547 return ret; 4548} 4549 4550 4551/** 4552 * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan 4553 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 4554 * Returns: 0 on success, -1 on failure or if not supported 4555 */ 4556static int wpa_driver_nl80211_stop_sched_scan(void *priv) 4557{ 4558 struct i802_bss *bss = priv; 4559 struct wpa_driver_nl80211_data *drv = bss->drv; 4560 int ret = 0; 4561 struct nl_msg *msg; 4562 4563#ifdef ANDROID 4564 if (!drv->capa.sched_scan_supported) 4565 return android_pno_stop(bss); 4566#endif /* ANDROID */ 4567 4568 msg = nlmsg_alloc(); 4569 if (!msg) 4570 return -1; 4571 4572 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN); 4573 4574 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4575 4576 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4577 msg = NULL; 4578 if (ret) { 4579 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: " 4580 "ret=%d (%s)", ret, strerror(-ret)); 4581 goto nla_put_failure; 4582 } 4583 4584 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret); 4585 4586nla_put_failure: 4587 nlmsg_free(msg); 4588 return ret; 4589} 4590 4591 4592static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie) 4593{ 4594 const u8 *end, *pos; 4595 4596 if (ies == NULL) 4597 return NULL; 4598 4599 pos = ies; 4600 end = ies + ies_len; 4601 4602 while (pos + 1 < end) { 4603 if (pos + 2 + pos[1] > end) 4604 break; 4605 if (pos[0] == ie) 4606 return pos; 4607 pos += 2 + pos[1]; 4608 } 4609 4610 return NULL; 4611} 4612 4613 4614static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv, 4615 const u8 *ie, size_t ie_len) 4616{ 4617 const u8 *ssid; 4618 size_t i; 4619 4620 if (drv->filter_ssids == NULL) 4621 return 0; 4622 4623 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID); 4624 if (ssid == NULL) 4625 return 1; 4626 4627 for (i = 0; i < drv->num_filter_ssids; i++) { 4628 if (ssid[1] == drv->filter_ssids[i].ssid_len && 4629 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) == 4630 0) 4631 return 0; 4632 } 4633 4634 return 1; 4635} 4636 4637 4638static int bss_info_handler(struct nl_msg *msg, void *arg) 4639{ 4640 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 4641 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 4642 struct nlattr *bss[NL80211_BSS_MAX + 1]; 4643 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = { 4644 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC }, 4645 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 }, 4646 [NL80211_BSS_TSF] = { .type = NLA_U64 }, 4647 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 }, 4648 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 }, 4649 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC }, 4650 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 }, 4651 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 }, 4652 [NL80211_BSS_STATUS] = { .type = NLA_U32 }, 4653 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 }, 4654 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC }, 4655 }; 4656 struct nl80211_bss_info_arg *_arg = arg; 4657 struct wpa_scan_results *res = _arg->res; 4658 struct wpa_scan_res **tmp; 4659 struct wpa_scan_res *r; 4660 const u8 *ie, *beacon_ie; 4661 size_t ie_len, beacon_ie_len; 4662 u8 *pos; 4663 size_t i; 4664 4665 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 4666 genlmsg_attrlen(gnlh, 0), NULL); 4667 if (!tb[NL80211_ATTR_BSS]) 4668 return NL_SKIP; 4669 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS], 4670 bss_policy)) 4671 return NL_SKIP; 4672 if (bss[NL80211_BSS_STATUS]) { 4673 enum nl80211_bss_status status; 4674 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 4675 if (status == NL80211_BSS_STATUS_ASSOCIATED && 4676 bss[NL80211_BSS_FREQUENCY]) { 4677 _arg->assoc_freq = 4678 nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 4679 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz", 4680 _arg->assoc_freq); 4681 } 4682 if (status == NL80211_BSS_STATUS_ASSOCIATED && 4683 bss[NL80211_BSS_BSSID]) { 4684 os_memcpy(_arg->assoc_bssid, 4685 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN); 4686 wpa_printf(MSG_DEBUG, "nl80211: Associated with " 4687 MACSTR, MAC2STR(_arg->assoc_bssid)); 4688 } 4689 } 4690 if (!res) 4691 return NL_SKIP; 4692 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) { 4693 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 4694 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 4695 } else { 4696 ie = NULL; 4697 ie_len = 0; 4698 } 4699 if (bss[NL80211_BSS_BEACON_IES]) { 4700 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]); 4701 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]); 4702 } else { 4703 beacon_ie = NULL; 4704 beacon_ie_len = 0; 4705 } 4706 4707 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie, 4708 ie ? ie_len : beacon_ie_len)) 4709 return NL_SKIP; 4710 4711 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len); 4712 if (r == NULL) 4713 return NL_SKIP; 4714 if (bss[NL80211_BSS_BSSID]) 4715 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]), 4716 ETH_ALEN); 4717 if (bss[NL80211_BSS_FREQUENCY]) 4718 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 4719 if (bss[NL80211_BSS_BEACON_INTERVAL]) 4720 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]); 4721 if (bss[NL80211_BSS_CAPABILITY]) 4722 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]); 4723 r->flags |= WPA_SCAN_NOISE_INVALID; 4724 if (bss[NL80211_BSS_SIGNAL_MBM]) { 4725 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]); 4726 r->level /= 100; /* mBm to dBm */ 4727 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID; 4728 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) { 4729 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]); 4730 r->flags |= WPA_SCAN_QUAL_INVALID; 4731 } else 4732 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID; 4733 if (bss[NL80211_BSS_TSF]) 4734 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]); 4735 if (bss[NL80211_BSS_SEEN_MS_AGO]) 4736 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]); 4737 r->ie_len = ie_len; 4738 pos = (u8 *) (r + 1); 4739 if (ie) { 4740 os_memcpy(pos, ie, ie_len); 4741 pos += ie_len; 4742 } 4743 r->beacon_ie_len = beacon_ie_len; 4744 if (beacon_ie) 4745 os_memcpy(pos, beacon_ie, beacon_ie_len); 4746 4747 if (bss[NL80211_BSS_STATUS]) { 4748 enum nl80211_bss_status status; 4749 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 4750 switch (status) { 4751 case NL80211_BSS_STATUS_AUTHENTICATED: 4752 r->flags |= WPA_SCAN_AUTHENTICATED; 4753 break; 4754 case NL80211_BSS_STATUS_ASSOCIATED: 4755 r->flags |= WPA_SCAN_ASSOCIATED; 4756 break; 4757 default: 4758 break; 4759 } 4760 } 4761 4762 /* 4763 * cfg80211 maintains separate BSS table entries for APs if the same 4764 * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does 4765 * not use frequency as a separate key in the BSS table, so filter out 4766 * duplicated entries. Prefer associated BSS entry in such a case in 4767 * order to get the correct frequency into the BSS table. 4768 */ 4769 for (i = 0; i < res->num; i++) { 4770 const u8 *s1, *s2; 4771 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0) 4772 continue; 4773 4774 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1), 4775 res->res[i]->ie_len, WLAN_EID_SSID); 4776 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID); 4777 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] || 4778 os_memcmp(s1, s2, 2 + s1[1]) != 0) 4779 continue; 4780 4781 /* Same BSSID,SSID was already included in scan results */ 4782 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result " 4783 "for " MACSTR, MAC2STR(r->bssid)); 4784 4785 if ((r->flags & WPA_SCAN_ASSOCIATED) && 4786 !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) { 4787 os_free(res->res[i]); 4788 res->res[i] = r; 4789 } else 4790 os_free(r); 4791 return NL_SKIP; 4792 } 4793 4794 tmp = os_realloc_array(res->res, res->num + 1, 4795 sizeof(struct wpa_scan_res *)); 4796 if (tmp == NULL) { 4797 os_free(r); 4798 return NL_SKIP; 4799 } 4800 tmp[res->num++] = r; 4801 res->res = tmp; 4802 4803 return NL_SKIP; 4804} 4805 4806 4807static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv, 4808 const u8 *addr) 4809{ 4810 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 4811 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state " 4812 "mismatch (" MACSTR ")", MAC2STR(addr)); 4813 wpa_driver_nl80211_mlme(drv, addr, 4814 NL80211_CMD_DEAUTHENTICATE, 4815 WLAN_REASON_PREV_AUTH_NOT_VALID, 1); 4816 } 4817} 4818 4819 4820static void wpa_driver_nl80211_check_bss_status( 4821 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res) 4822{ 4823 size_t i; 4824 4825 for (i = 0; i < res->num; i++) { 4826 struct wpa_scan_res *r = res->res[i]; 4827 if (r->flags & WPA_SCAN_AUTHENTICATED) { 4828 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 4829 "indicates BSS status with " MACSTR 4830 " as authenticated", 4831 MAC2STR(r->bssid)); 4832 if (is_sta_interface(drv->nlmode) && 4833 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 && 4834 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) != 4835 0) { 4836 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID" 4837 " in local state (auth=" MACSTR 4838 " assoc=" MACSTR ")", 4839 MAC2STR(drv->auth_bssid), 4840 MAC2STR(drv->bssid)); 4841 clear_state_mismatch(drv, r->bssid); 4842 } 4843 } 4844 4845 if (r->flags & WPA_SCAN_ASSOCIATED) { 4846 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 4847 "indicate BSS status with " MACSTR 4848 " as associated", 4849 MAC2STR(r->bssid)); 4850 if (is_sta_interface(drv->nlmode) && 4851 !drv->associated) { 4852 wpa_printf(MSG_DEBUG, "nl80211: Local state " 4853 "(not associated) does not match " 4854 "with BSS state"); 4855 clear_state_mismatch(drv, r->bssid); 4856 } else if (is_sta_interface(drv->nlmode) && 4857 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) != 4858 0) { 4859 wpa_printf(MSG_DEBUG, "nl80211: Local state " 4860 "(associated with " MACSTR ") does " 4861 "not match with BSS state", 4862 MAC2STR(drv->bssid)); 4863 clear_state_mismatch(drv, r->bssid); 4864 clear_state_mismatch(drv, drv->bssid); 4865 } 4866 } 4867 } 4868} 4869 4870 4871static struct wpa_scan_results * 4872nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv) 4873{ 4874 struct nl_msg *msg; 4875 struct wpa_scan_results *res; 4876 int ret; 4877 struct nl80211_bss_info_arg arg; 4878 4879 res = os_zalloc(sizeof(*res)); 4880 if (res == NULL) 4881 return NULL; 4882 msg = nlmsg_alloc(); 4883 if (!msg) 4884 goto nla_put_failure; 4885 4886 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 4887 if (nl80211_set_iface_id(msg, &drv->first_bss) < 0) 4888 goto nla_put_failure; 4889 4890 arg.drv = drv; 4891 arg.res = res; 4892 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 4893 msg = NULL; 4894 if (ret == 0) { 4895 wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu " 4896 "BSSes)", (unsigned long) res->num); 4897 nl80211_get_noise_for_scan_results(drv, res); 4898 return res; 4899 } 4900 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 4901 "(%s)", ret, strerror(-ret)); 4902nla_put_failure: 4903 nlmsg_free(msg); 4904 wpa_scan_results_free(res); 4905 return NULL; 4906} 4907 4908 4909/** 4910 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results 4911 * @priv: Pointer to private wext data from wpa_driver_nl80211_init() 4912 * Returns: Scan results on success, -1 on failure 4913 */ 4914static struct wpa_scan_results * 4915wpa_driver_nl80211_get_scan_results(void *priv) 4916{ 4917 struct i802_bss *bss = priv; 4918 struct wpa_driver_nl80211_data *drv = bss->drv; 4919 struct wpa_scan_results *res; 4920 4921 res = nl80211_get_scan_results(drv); 4922 if (res) 4923 wpa_driver_nl80211_check_bss_status(drv, res); 4924 return res; 4925} 4926 4927 4928static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv) 4929{ 4930 struct wpa_scan_results *res; 4931 size_t i; 4932 4933 res = nl80211_get_scan_results(drv); 4934 if (res == NULL) { 4935 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results"); 4936 return; 4937 } 4938 4939 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump"); 4940 for (i = 0; i < res->num; i++) { 4941 struct wpa_scan_res *r = res->res[i]; 4942 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s", 4943 (int) i, (int) res->num, MAC2STR(r->bssid), 4944 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "", 4945 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : ""); 4946 } 4947 4948 wpa_scan_results_free(res); 4949} 4950 4951 4952static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss, 4953 enum wpa_alg alg, const u8 *addr, 4954 int key_idx, int set_tx, 4955 const u8 *seq, size_t seq_len, 4956 const u8 *key, size_t key_len) 4957{ 4958 struct wpa_driver_nl80211_data *drv = bss->drv; 4959 int ifindex; 4960 struct nl_msg *msg; 4961 int ret; 4962 int tdls = 0; 4963 4964 /* Ignore for P2P Device */ 4965 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 4966 return 0; 4967 4968 ifindex = if_nametoindex(ifname); 4969 wpa_printf(MSG_DEBUG, "%s: ifindex=%d (%s) alg=%d addr=%p key_idx=%d " 4970 "set_tx=%d seq_len=%lu key_len=%lu", 4971 __func__, ifindex, ifname, alg, addr, key_idx, set_tx, 4972 (unsigned long) seq_len, (unsigned long) key_len); 4973#ifdef CONFIG_TDLS 4974 if (key_idx == -1) { 4975 key_idx = 0; 4976 tdls = 1; 4977 } 4978#endif /* CONFIG_TDLS */ 4979 4980 msg = nlmsg_alloc(); 4981 if (!msg) 4982 return -ENOMEM; 4983 4984 if (alg == WPA_ALG_NONE) { 4985 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY); 4986 } else { 4987 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY); 4988 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key); 4989 switch (alg) { 4990 case WPA_ALG_WEP: 4991 if (key_len == 5) 4992 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4993 WLAN_CIPHER_SUITE_WEP40); 4994 else 4995 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4996 WLAN_CIPHER_SUITE_WEP104); 4997 break; 4998 case WPA_ALG_TKIP: 4999 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5000 WLAN_CIPHER_SUITE_TKIP); 5001 break; 5002 case WPA_ALG_CCMP: 5003 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5004 WLAN_CIPHER_SUITE_CCMP); 5005 break; 5006 case WPA_ALG_GCMP: 5007 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5008 WLAN_CIPHER_SUITE_GCMP); 5009 break; 5010 case WPA_ALG_IGTK: 5011 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5012 WLAN_CIPHER_SUITE_AES_CMAC); 5013 break; 5014 case WPA_ALG_SMS4: 5015 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5016 WLAN_CIPHER_SUITE_SMS4); 5017 break; 5018 case WPA_ALG_KRK: 5019 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5020 WLAN_CIPHER_SUITE_KRK); 5021 break; 5022 default: 5023 wpa_printf(MSG_ERROR, "%s: Unsupported encryption " 5024 "algorithm %d", __func__, alg); 5025 nlmsg_free(msg); 5026 return -1; 5027 } 5028 } 5029 5030 if (seq && seq_len) 5031 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq); 5032 5033 if (addr && !is_broadcast_ether_addr(addr)) { 5034 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr)); 5035 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 5036 5037 if (alg != WPA_ALG_WEP && key_idx && !set_tx) { 5038 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK"); 5039 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, 5040 NL80211_KEYTYPE_GROUP); 5041 } 5042 } else if (addr && is_broadcast_ether_addr(addr)) { 5043 struct nlattr *types; 5044 5045 wpa_printf(MSG_DEBUG, " broadcast key"); 5046 5047 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5048 if (!types) 5049 goto nla_put_failure; 5050 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 5051 nla_nest_end(msg, types); 5052 } 5053 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 5054 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5055 5056 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5057 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE) 5058 ret = 0; 5059 if (ret) 5060 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)", 5061 ret, strerror(-ret)); 5062 5063 /* 5064 * If we failed or don't need to set the default TX key (below), 5065 * we're done here. 5066 */ 5067 if (ret || !set_tx || alg == WPA_ALG_NONE || tdls) 5068 return ret; 5069 if (is_ap_interface(drv->nlmode) && addr && 5070 !is_broadcast_ether_addr(addr)) 5071 return ret; 5072 5073 msg = nlmsg_alloc(); 5074 if (!msg) 5075 return -ENOMEM; 5076 5077 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY); 5078 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 5079 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5080 if (alg == WPA_ALG_IGTK) 5081 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT); 5082 else 5083 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT); 5084 if (addr && is_broadcast_ether_addr(addr)) { 5085 struct nlattr *types; 5086 5087 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5088 if (!types) 5089 goto nla_put_failure; 5090 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 5091 nla_nest_end(msg, types); 5092 } else if (addr) { 5093 struct nlattr *types; 5094 5095 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5096 if (!types) 5097 goto nla_put_failure; 5098 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_UNICAST); 5099 nla_nest_end(msg, types); 5100 } 5101 5102 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5103 if (ret == -ENOENT) 5104 ret = 0; 5105 if (ret) 5106 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; " 5107 "err=%d %s)", ret, strerror(-ret)); 5108 return ret; 5109 5110nla_put_failure: 5111 nlmsg_free(msg); 5112 return -ENOBUFS; 5113} 5114 5115 5116static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg, 5117 int key_idx, int defkey, 5118 const u8 *seq, size_t seq_len, 5119 const u8 *key, size_t key_len) 5120{ 5121 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY); 5122 if (!key_attr) 5123 return -1; 5124 5125 if (defkey && alg == WPA_ALG_IGTK) 5126 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT); 5127 else if (defkey) 5128 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 5129 5130 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx); 5131 5132 switch (alg) { 5133 case WPA_ALG_WEP: 5134 if (key_len == 5) 5135 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5136 WLAN_CIPHER_SUITE_WEP40); 5137 else 5138 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5139 WLAN_CIPHER_SUITE_WEP104); 5140 break; 5141 case WPA_ALG_TKIP: 5142 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP); 5143 break; 5144 case WPA_ALG_CCMP: 5145 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP); 5146 break; 5147 case WPA_ALG_GCMP: 5148 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_GCMP); 5149 break; 5150 case WPA_ALG_IGTK: 5151 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5152 WLAN_CIPHER_SUITE_AES_CMAC); 5153 break; 5154 default: 5155 wpa_printf(MSG_ERROR, "%s: Unsupported encryption " 5156 "algorithm %d", __func__, alg); 5157 return -1; 5158 } 5159 5160 if (seq && seq_len) 5161 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq); 5162 5163 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key); 5164 5165 nla_nest_end(msg, key_attr); 5166 5167 return 0; 5168 nla_put_failure: 5169 return -1; 5170} 5171 5172 5173static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params, 5174 struct nl_msg *msg) 5175{ 5176 int i, privacy = 0; 5177 struct nlattr *nl_keys, *nl_key; 5178 5179 for (i = 0; i < 4; i++) { 5180 if (!params->wep_key[i]) 5181 continue; 5182 privacy = 1; 5183 break; 5184 } 5185 if (params->wps == WPS_MODE_PRIVACY) 5186 privacy = 1; 5187 if (params->pairwise_suite && 5188 params->pairwise_suite != WPA_CIPHER_NONE) 5189 privacy = 1; 5190 5191 if (!privacy) 5192 return 0; 5193 5194 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 5195 5196 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS); 5197 if (!nl_keys) 5198 goto nla_put_failure; 5199 5200 for (i = 0; i < 4; i++) { 5201 if (!params->wep_key[i]) 5202 continue; 5203 5204 nl_key = nla_nest_start(msg, i); 5205 if (!nl_key) 5206 goto nla_put_failure; 5207 5208 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i], 5209 params->wep_key[i]); 5210 if (params->wep_key_len[i] == 5) 5211 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5212 WLAN_CIPHER_SUITE_WEP40); 5213 else 5214 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5215 WLAN_CIPHER_SUITE_WEP104); 5216 5217 NLA_PUT_U8(msg, NL80211_KEY_IDX, i); 5218 5219 if (i == params->wep_tx_keyidx) 5220 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 5221 5222 nla_nest_end(msg, nl_key); 5223 } 5224 nla_nest_end(msg, nl_keys); 5225 5226 return 0; 5227 5228nla_put_failure: 5229 return -ENOBUFS; 5230} 5231 5232 5233static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 5234 const u8 *addr, int cmd, u16 reason_code, 5235 int local_state_change) 5236{ 5237 int ret = -1; 5238 struct nl_msg *msg; 5239 5240 msg = nlmsg_alloc(); 5241 if (!msg) 5242 return -1; 5243 5244 nl80211_cmd(drv, msg, 0, cmd); 5245 5246 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5247 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code); 5248 if (addr) 5249 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 5250 if (local_state_change) 5251 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 5252 5253 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5254 msg = NULL; 5255 if (ret) { 5256 wpa_dbg(drv->ctx, MSG_DEBUG, 5257 "nl80211: MLME command failed: reason=%u ret=%d (%s)", 5258 reason_code, ret, strerror(-ret)); 5259 goto nla_put_failure; 5260 } 5261 ret = 0; 5262 5263nla_put_failure: 5264 nlmsg_free(msg); 5265 return ret; 5266} 5267 5268 5269static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv, 5270 int reason_code) 5271{ 5272 int ret; 5273 5274 wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code); 5275 nl80211_mark_disconnected(drv); 5276 /* Disconnect command doesn't need BSSID - it uses cached value */ 5277 ret = wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT, 5278 reason_code, 0); 5279 /* 5280 * For locally generated disconnect, supplicant already generates a 5281 * DEAUTH event, so ignore the event from NL80211. 5282 */ 5283 drv->ignore_next_local_disconnect = ret == 0; 5284 5285 return ret; 5286} 5287 5288 5289static int wpa_driver_nl80211_deauthenticate(struct i802_bss *bss, 5290 const u8 *addr, int reason_code) 5291{ 5292 struct wpa_driver_nl80211_data *drv = bss->drv; 5293 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) 5294 return wpa_driver_nl80211_disconnect(drv, reason_code); 5295 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)", 5296 __func__, MAC2STR(addr), reason_code); 5297 nl80211_mark_disconnected(drv); 5298 if (drv->nlmode == NL80211_IFTYPE_ADHOC) 5299 return nl80211_leave_ibss(drv); 5300 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE, 5301 reason_code, 0); 5302} 5303 5304 5305static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv, 5306 struct wpa_driver_auth_params *params) 5307{ 5308 int i; 5309 5310 drv->auth_freq = params->freq; 5311 drv->auth_alg = params->auth_alg; 5312 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx; 5313 drv->auth_local_state_change = params->local_state_change; 5314 drv->auth_p2p = params->p2p; 5315 5316 if (params->bssid) 5317 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN); 5318 else 5319 os_memset(drv->auth_bssid_, 0, ETH_ALEN); 5320 5321 if (params->ssid) { 5322 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len); 5323 drv->auth_ssid_len = params->ssid_len; 5324 } else 5325 drv->auth_ssid_len = 0; 5326 5327 5328 os_free(drv->auth_ie); 5329 drv->auth_ie = NULL; 5330 drv->auth_ie_len = 0; 5331 if (params->ie) { 5332 drv->auth_ie = os_malloc(params->ie_len); 5333 if (drv->auth_ie) { 5334 os_memcpy(drv->auth_ie, params->ie, params->ie_len); 5335 drv->auth_ie_len = params->ie_len; 5336 } 5337 } 5338 5339 for (i = 0; i < 4; i++) { 5340 if (params->wep_key[i] && params->wep_key_len[i] && 5341 params->wep_key_len[i] <= 16) { 5342 os_memcpy(drv->auth_wep_key[i], params->wep_key[i], 5343 params->wep_key_len[i]); 5344 drv->auth_wep_key_len[i] = params->wep_key_len[i]; 5345 } else 5346 drv->auth_wep_key_len[i] = 0; 5347 } 5348} 5349 5350 5351static int wpa_driver_nl80211_authenticate( 5352 struct i802_bss *bss, struct wpa_driver_auth_params *params) 5353{ 5354 struct wpa_driver_nl80211_data *drv = bss->drv; 5355 int ret = -1, i; 5356 struct nl_msg *msg; 5357 enum nl80211_auth_type type; 5358 enum nl80211_iftype nlmode; 5359 int count = 0; 5360 int is_retry; 5361 5362 is_retry = drv->retry_auth; 5363 drv->retry_auth = 0; 5364 5365 nl80211_mark_disconnected(drv); 5366 os_memset(drv->auth_bssid, 0, ETH_ALEN); 5367 if (params->bssid) 5368 os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN); 5369 else 5370 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 5371 /* FIX: IBSS mode */ 5372 nlmode = params->p2p ? 5373 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 5374 if (drv->nlmode != nlmode && 5375 wpa_driver_nl80211_set_mode(bss, nlmode) < 0) 5376 return -1; 5377 5378retry: 5379 msg = nlmsg_alloc(); 5380 if (!msg) 5381 return -1; 5382 5383 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)", 5384 drv->ifindex); 5385 5386 nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE); 5387 5388 for (i = 0; i < 4; i++) { 5389 if (!params->wep_key[i]) 5390 continue; 5391 wpa_driver_nl80211_set_key(bss->ifname, bss, WPA_ALG_WEP, 5392 NULL, i, 5393 i == params->wep_tx_keyidx, NULL, 0, 5394 params->wep_key[i], 5395 params->wep_key_len[i]); 5396 if (params->wep_tx_keyidx != i) 5397 continue; 5398 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0, 5399 params->wep_key[i], params->wep_key_len[i])) { 5400 nlmsg_free(msg); 5401 return -1; 5402 } 5403 } 5404 5405 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5406 if (params->bssid) { 5407 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 5408 MAC2STR(params->bssid)); 5409 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 5410 } 5411 if (params->freq) { 5412 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 5413 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 5414 } 5415 if (params->ssid) { 5416 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 5417 params->ssid, params->ssid_len); 5418 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 5419 params->ssid); 5420 } 5421 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len); 5422 if (params->ie) 5423 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie); 5424 if (params->sae_data) { 5425 wpa_hexdump(MSG_DEBUG, " * SAE data", params->sae_data, 5426 params->sae_data_len); 5427 NLA_PUT(msg, NL80211_ATTR_SAE_DATA, params->sae_data_len, 5428 params->sae_data); 5429 } 5430 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 5431 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 5432 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 5433 type = NL80211_AUTHTYPE_SHARED_KEY; 5434 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 5435 type = NL80211_AUTHTYPE_NETWORK_EAP; 5436 else if (params->auth_alg & WPA_AUTH_ALG_FT) 5437 type = NL80211_AUTHTYPE_FT; 5438 else if (params->auth_alg & WPA_AUTH_ALG_SAE) 5439 type = NL80211_AUTHTYPE_SAE; 5440 else 5441 goto nla_put_failure; 5442 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 5443 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 5444 if (params->local_state_change) { 5445 wpa_printf(MSG_DEBUG, " * Local state change only"); 5446 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 5447 } 5448 5449 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5450 msg = NULL; 5451 if (ret) { 5452 wpa_dbg(drv->ctx, MSG_DEBUG, 5453 "nl80211: MLME command failed (auth): ret=%d (%s)", 5454 ret, strerror(-ret)); 5455 count++; 5456 if (ret == -EALREADY && count == 1 && params->bssid && 5457 !params->local_state_change) { 5458 /* 5459 * mac80211 does not currently accept new 5460 * authentication if we are already authenticated. As a 5461 * workaround, force deauthentication and try again. 5462 */ 5463 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication " 5464 "after forced deauthentication"); 5465 wpa_driver_nl80211_deauthenticate( 5466 bss, params->bssid, 5467 WLAN_REASON_PREV_AUTH_NOT_VALID); 5468 nlmsg_free(msg); 5469 goto retry; 5470 } 5471 5472 if (ret == -ENOENT && params->freq && !is_retry) { 5473 /* 5474 * cfg80211 has likely expired the BSS entry even 5475 * though it was previously available in our internal 5476 * BSS table. To recover quickly, start a single 5477 * channel scan on the specified channel. 5478 */ 5479 struct wpa_driver_scan_params scan; 5480 int freqs[2]; 5481 5482 os_memset(&scan, 0, sizeof(scan)); 5483 scan.num_ssids = 1; 5484 if (params->ssid) { 5485 scan.ssids[0].ssid = params->ssid; 5486 scan.ssids[0].ssid_len = params->ssid_len; 5487 } 5488 freqs[0] = params->freq; 5489 freqs[1] = 0; 5490 scan.freqs = freqs; 5491 wpa_printf(MSG_DEBUG, "nl80211: Trigger single " 5492 "channel scan to refresh cfg80211 BSS " 5493 "entry"); 5494 ret = wpa_driver_nl80211_scan(bss, &scan); 5495 if (ret == 0) { 5496 nl80211_copy_auth_params(drv, params); 5497 drv->scan_for_auth = 1; 5498 } 5499 } else if (is_retry) { 5500 /* 5501 * Need to indicate this with an event since the return 5502 * value from the retry is not delivered to core code. 5503 */ 5504 union wpa_event_data event; 5505 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry " 5506 "failed"); 5507 os_memset(&event, 0, sizeof(event)); 5508 os_memcpy(event.timeout_event.addr, drv->auth_bssid_, 5509 ETH_ALEN); 5510 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT, 5511 &event); 5512 } 5513 5514 goto nla_put_failure; 5515 } 5516 ret = 0; 5517 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send " 5518 "successfully"); 5519 5520nla_put_failure: 5521 nlmsg_free(msg); 5522 return ret; 5523} 5524 5525 5526static int wpa_driver_nl80211_authenticate_retry( 5527 struct wpa_driver_nl80211_data *drv) 5528{ 5529 struct wpa_driver_auth_params params; 5530 struct i802_bss *bss = &drv->first_bss; 5531 int i; 5532 5533 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again"); 5534 5535 os_memset(¶ms, 0, sizeof(params)); 5536 params.freq = drv->auth_freq; 5537 params.auth_alg = drv->auth_alg; 5538 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx; 5539 params.local_state_change = drv->auth_local_state_change; 5540 params.p2p = drv->auth_p2p; 5541 5542 if (!is_zero_ether_addr(drv->auth_bssid_)) 5543 params.bssid = drv->auth_bssid_; 5544 5545 if (drv->auth_ssid_len) { 5546 params.ssid = drv->auth_ssid; 5547 params.ssid_len = drv->auth_ssid_len; 5548 } 5549 5550 params.ie = drv->auth_ie; 5551 params.ie_len = drv->auth_ie_len; 5552 5553 for (i = 0; i < 4; i++) { 5554 if (drv->auth_wep_key_len[i]) { 5555 params.wep_key[i] = drv->auth_wep_key[i]; 5556 params.wep_key_len[i] = drv->auth_wep_key_len[i]; 5557 } 5558 } 5559 5560 drv->retry_auth = 1; 5561 return wpa_driver_nl80211_authenticate(bss, ¶ms); 5562} 5563 5564 5565struct phy_info_arg { 5566 u16 *num_modes; 5567 struct hostapd_hw_modes *modes; 5568 int last_mode, last_chan_idx; 5569}; 5570 5571static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa, 5572 struct nlattr *ampdu_factor, 5573 struct nlattr *ampdu_density, 5574 struct nlattr *mcs_set) 5575{ 5576 if (capa) 5577 mode->ht_capab = nla_get_u16(capa); 5578 5579 if (ampdu_factor) 5580 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03; 5581 5582 if (ampdu_density) 5583 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2; 5584 5585 if (mcs_set && nla_len(mcs_set) >= 16) { 5586 u8 *mcs; 5587 mcs = nla_data(mcs_set); 5588 os_memcpy(mode->mcs_set, mcs, 16); 5589 } 5590} 5591 5592 5593static void phy_info_vht_capa(struct hostapd_hw_modes *mode, 5594 struct nlattr *capa, 5595 struct nlattr *mcs_set) 5596{ 5597 if (capa) 5598 mode->vht_capab = nla_get_u32(capa); 5599 5600 if (mcs_set && nla_len(mcs_set) >= 8) { 5601 u8 *mcs; 5602 mcs = nla_data(mcs_set); 5603 os_memcpy(mode->vht_mcs_set, mcs, 8); 5604 } 5605} 5606 5607 5608static void phy_info_freq(struct hostapd_hw_modes *mode, 5609 struct hostapd_channel_data *chan, 5610 struct nlattr *tb_freq[]) 5611{ 5612 u8 channel; 5613 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]); 5614 chan->flag = 0; 5615 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES) 5616 chan->chan = channel; 5617 5618 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) 5619 chan->flag |= HOSTAPD_CHAN_DISABLED; 5620 if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN]) 5621 chan->flag |= HOSTAPD_CHAN_PASSIVE_SCAN; 5622 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS]) 5623 chan->flag |= HOSTAPD_CHAN_NO_IBSS; 5624 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR]) 5625 chan->flag |= HOSTAPD_CHAN_RADAR; 5626 5627 if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] && 5628 !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) 5629 chan->max_tx_power = nla_get_u32( 5630 tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100; 5631 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) { 5632 enum nl80211_dfs_state state = 5633 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]); 5634 5635 switch (state) { 5636 case NL80211_DFS_USABLE: 5637 chan->flag |= HOSTAPD_CHAN_DFS_USABLE; 5638 break; 5639 case NL80211_DFS_AVAILABLE: 5640 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE; 5641 break; 5642 case NL80211_DFS_UNAVAILABLE: 5643 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE; 5644 break; 5645 } 5646 } 5647} 5648 5649 5650static int phy_info_freqs(struct phy_info_arg *phy_info, 5651 struct hostapd_hw_modes *mode, struct nlattr *tb) 5652{ 5653 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 5654 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 }, 5655 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG }, 5656 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG }, 5657 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG }, 5658 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG }, 5659 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 }, 5660 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 }, 5661 }; 5662 int new_channels = 0; 5663 struct hostapd_channel_data *channel; 5664 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1]; 5665 struct nlattr *nl_freq; 5666 int rem_freq, idx; 5667 5668 if (tb == NULL) 5669 return NL_OK; 5670 5671 nla_for_each_nested(nl_freq, tb, rem_freq) { 5672 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 5673 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 5674 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 5675 continue; 5676 new_channels++; 5677 } 5678 5679 channel = os_realloc_array(mode->channels, 5680 mode->num_channels + new_channels, 5681 sizeof(struct hostapd_channel_data)); 5682 if (!channel) 5683 return NL_SKIP; 5684 5685 mode->channels = channel; 5686 mode->num_channels += new_channels; 5687 5688 idx = phy_info->last_chan_idx; 5689 5690 nla_for_each_nested(nl_freq, tb, rem_freq) { 5691 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 5692 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 5693 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 5694 continue; 5695 phy_info_freq(mode, &mode->channels[idx], tb_freq); 5696 idx++; 5697 } 5698 phy_info->last_chan_idx = idx; 5699 5700 return NL_OK; 5701} 5702 5703 5704static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb) 5705{ 5706 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = { 5707 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 }, 5708 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = 5709 { .type = NLA_FLAG }, 5710 }; 5711 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1]; 5712 struct nlattr *nl_rate; 5713 int rem_rate, idx; 5714 5715 if (tb == NULL) 5716 return NL_OK; 5717 5718 nla_for_each_nested(nl_rate, tb, rem_rate) { 5719 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 5720 nla_data(nl_rate), nla_len(nl_rate), 5721 rate_policy); 5722 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 5723 continue; 5724 mode->num_rates++; 5725 } 5726 5727 mode->rates = os_calloc(mode->num_rates, sizeof(int)); 5728 if (!mode->rates) 5729 return NL_SKIP; 5730 5731 idx = 0; 5732 5733 nla_for_each_nested(nl_rate, tb, rem_rate) { 5734 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 5735 nla_data(nl_rate), nla_len(nl_rate), 5736 rate_policy); 5737 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 5738 continue; 5739 mode->rates[idx] = nla_get_u32( 5740 tb_rate[NL80211_BITRATE_ATTR_RATE]); 5741 idx++; 5742 } 5743 5744 return NL_OK; 5745} 5746 5747 5748static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band) 5749{ 5750 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1]; 5751 struct hostapd_hw_modes *mode; 5752 int ret; 5753 5754 if (phy_info->last_mode != nl_band->nla_type) { 5755 mode = os_realloc_array(phy_info->modes, 5756 *phy_info->num_modes + 1, 5757 sizeof(*mode)); 5758 if (!mode) 5759 return NL_SKIP; 5760 phy_info->modes = mode; 5761 5762 mode = &phy_info->modes[*(phy_info->num_modes)]; 5763 os_memset(mode, 0, sizeof(*mode)); 5764 mode->mode = NUM_HOSTAPD_MODES; 5765 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN | 5766 HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN; 5767 5768 /* 5769 * Unsupported VHT MCS stream is defined as value 3, so the VHT 5770 * MCS RX/TX map must be initialized with 0xffff to mark all 8 5771 * possible streams as unsupported. This will be overridden if 5772 * driver advertises VHT support. 5773 */ 5774 mode->vht_mcs_set[0] = 0xff; 5775 mode->vht_mcs_set[1] = 0xff; 5776 mode->vht_mcs_set[4] = 0xff; 5777 mode->vht_mcs_set[5] = 0xff; 5778 5779 *(phy_info->num_modes) += 1; 5780 phy_info->last_mode = nl_band->nla_type; 5781 phy_info->last_chan_idx = 0; 5782 } else 5783 mode = &phy_info->modes[*(phy_info->num_modes) - 1]; 5784 5785 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band), 5786 nla_len(nl_band), NULL); 5787 5788 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA], 5789 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR], 5790 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY], 5791 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]); 5792 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA], 5793 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]); 5794 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]); 5795 if (ret != NL_OK) 5796 return ret; 5797 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]); 5798 if (ret != NL_OK) 5799 return ret; 5800 5801 return NL_OK; 5802} 5803 5804 5805static int phy_info_handler(struct nl_msg *msg, void *arg) 5806{ 5807 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 5808 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 5809 struct phy_info_arg *phy_info = arg; 5810 struct nlattr *nl_band; 5811 int rem_band; 5812 5813 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 5814 genlmsg_attrlen(gnlh, 0), NULL); 5815 5816 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS]) 5817 return NL_SKIP; 5818 5819 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) 5820 { 5821 int res = phy_info_band(phy_info, nl_band); 5822 if (res != NL_OK) 5823 return res; 5824 } 5825 5826 return NL_SKIP; 5827} 5828 5829 5830static struct hostapd_hw_modes * 5831wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes, 5832 u16 *num_modes) 5833{ 5834 u16 m; 5835 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode; 5836 int i, mode11g_idx = -1; 5837 5838 /* heuristic to set up modes */ 5839 for (m = 0; m < *num_modes; m++) { 5840 if (!modes[m].num_channels) 5841 continue; 5842 if (modes[m].channels[0].freq < 4000) { 5843 modes[m].mode = HOSTAPD_MODE_IEEE80211B; 5844 for (i = 0; i < modes[m].num_rates; i++) { 5845 if (modes[m].rates[i] > 200) { 5846 modes[m].mode = HOSTAPD_MODE_IEEE80211G; 5847 break; 5848 } 5849 } 5850 } else if (modes[m].channels[0].freq > 50000) 5851 modes[m].mode = HOSTAPD_MODE_IEEE80211AD; 5852 else 5853 modes[m].mode = HOSTAPD_MODE_IEEE80211A; 5854 } 5855 5856 /* If only 802.11g mode is included, use it to construct matching 5857 * 802.11b mode data. */ 5858 5859 for (m = 0; m < *num_modes; m++) { 5860 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B) 5861 return modes; /* 802.11b already included */ 5862 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G) 5863 mode11g_idx = m; 5864 } 5865 5866 if (mode11g_idx < 0) 5867 return modes; /* 2.4 GHz band not supported at all */ 5868 5869 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes)); 5870 if (nmodes == NULL) 5871 return modes; /* Could not add 802.11b mode */ 5872 5873 mode = &nmodes[*num_modes]; 5874 os_memset(mode, 0, sizeof(*mode)); 5875 (*num_modes)++; 5876 modes = nmodes; 5877 5878 mode->mode = HOSTAPD_MODE_IEEE80211B; 5879 5880 mode11g = &modes[mode11g_idx]; 5881 mode->num_channels = mode11g->num_channels; 5882 mode->channels = os_malloc(mode11g->num_channels * 5883 sizeof(struct hostapd_channel_data)); 5884 if (mode->channels == NULL) { 5885 (*num_modes)--; 5886 return modes; /* Could not add 802.11b mode */ 5887 } 5888 os_memcpy(mode->channels, mode11g->channels, 5889 mode11g->num_channels * sizeof(struct hostapd_channel_data)); 5890 5891 mode->num_rates = 0; 5892 mode->rates = os_malloc(4 * sizeof(int)); 5893 if (mode->rates == NULL) { 5894 os_free(mode->channels); 5895 (*num_modes)--; 5896 return modes; /* Could not add 802.11b mode */ 5897 } 5898 5899 for (i = 0; i < mode11g->num_rates; i++) { 5900 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 && 5901 mode11g->rates[i] != 55 && mode11g->rates[i] != 110) 5902 continue; 5903 mode->rates[mode->num_rates] = mode11g->rates[i]; 5904 mode->num_rates++; 5905 if (mode->num_rates == 4) 5906 break; 5907 } 5908 5909 if (mode->num_rates == 0) { 5910 os_free(mode->channels); 5911 os_free(mode->rates); 5912 (*num_modes)--; 5913 return modes; /* No 802.11b rates */ 5914 } 5915 5916 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g " 5917 "information"); 5918 5919 return modes; 5920} 5921 5922 5923static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start, 5924 int end) 5925{ 5926 int c; 5927 5928 for (c = 0; c < mode->num_channels; c++) { 5929 struct hostapd_channel_data *chan = &mode->channels[c]; 5930 if (chan->freq - 10 >= start && chan->freq + 10 <= end) 5931 chan->flag |= HOSTAPD_CHAN_HT40; 5932 } 5933} 5934 5935 5936static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start, 5937 int end) 5938{ 5939 int c; 5940 5941 for (c = 0; c < mode->num_channels; c++) { 5942 struct hostapd_channel_data *chan = &mode->channels[c]; 5943 if (!(chan->flag & HOSTAPD_CHAN_HT40)) 5944 continue; 5945 if (chan->freq - 30 >= start && chan->freq - 10 <= end) 5946 chan->flag |= HOSTAPD_CHAN_HT40MINUS; 5947 if (chan->freq + 10 >= start && chan->freq + 30 <= end) 5948 chan->flag |= HOSTAPD_CHAN_HT40PLUS; 5949 } 5950} 5951 5952 5953static void nl80211_reg_rule_ht40(struct nlattr *tb[], 5954 struct phy_info_arg *results) 5955{ 5956 u32 start, end, max_bw; 5957 u16 m; 5958 5959 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 5960 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 5961 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 5962 return; 5963 5964 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 5965 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 5966 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 5967 5968 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz", 5969 start, end, max_bw); 5970 if (max_bw < 40) 5971 return; 5972 5973 for (m = 0; m < *results->num_modes; m++) { 5974 if (!(results->modes[m].ht_capab & 5975 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 5976 continue; 5977 nl80211_set_ht40_mode(&results->modes[m], start, end); 5978 } 5979} 5980 5981 5982static void nl80211_reg_rule_sec(struct nlattr *tb[], 5983 struct phy_info_arg *results) 5984{ 5985 u32 start, end, max_bw; 5986 u16 m; 5987 5988 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 5989 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 5990 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 5991 return; 5992 5993 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 5994 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 5995 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 5996 5997 if (max_bw < 20) 5998 return; 5999 6000 for (m = 0; m < *results->num_modes; m++) { 6001 if (!(results->modes[m].ht_capab & 6002 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6003 continue; 6004 nl80211_set_ht40_mode_sec(&results->modes[m], start, end); 6005 } 6006} 6007 6008 6009static int nl80211_get_reg(struct nl_msg *msg, void *arg) 6010{ 6011 struct phy_info_arg *results = arg; 6012 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 6013 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 6014 struct nlattr *nl_rule; 6015 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1]; 6016 int rem_rule; 6017 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 6018 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, 6019 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, 6020 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, 6021 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, 6022 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, 6023 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, 6024 }; 6025 6026 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 6027 genlmsg_attrlen(gnlh, 0), NULL); 6028 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] || 6029 !tb_msg[NL80211_ATTR_REG_RULES]) { 6030 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information " 6031 "available"); 6032 return NL_SKIP; 6033 } 6034 6035 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s", 6036 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2])); 6037 6038 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6039 { 6040 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6041 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6042 nl80211_reg_rule_ht40(tb_rule, results); 6043 } 6044 6045 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6046 { 6047 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6048 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6049 nl80211_reg_rule_sec(tb_rule, results); 6050 } 6051 6052 return NL_SKIP; 6053} 6054 6055 6056static int nl80211_set_ht40_flags(struct wpa_driver_nl80211_data *drv, 6057 struct phy_info_arg *results) 6058{ 6059 struct nl_msg *msg; 6060 6061 msg = nlmsg_alloc(); 6062 if (!msg) 6063 return -ENOMEM; 6064 6065 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 6066 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results); 6067} 6068 6069 6070static struct hostapd_hw_modes * 6071wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags) 6072{ 6073 u32 feat; 6074 struct i802_bss *bss = priv; 6075 struct wpa_driver_nl80211_data *drv = bss->drv; 6076 struct nl_msg *msg; 6077 struct phy_info_arg result = { 6078 .num_modes = num_modes, 6079 .modes = NULL, 6080 .last_mode = -1, 6081 }; 6082 6083 *num_modes = 0; 6084 *flags = 0; 6085 6086 msg = nlmsg_alloc(); 6087 if (!msg) 6088 return NULL; 6089 6090 feat = get_nl80211_protocol_features(drv); 6091 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 6092 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 6093 else 6094 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 6095 6096 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 6097 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6098 6099 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) { 6100 nl80211_set_ht40_flags(drv, &result); 6101 return wpa_driver_nl80211_postprocess_modes(result.modes, 6102 num_modes); 6103 } 6104 msg = NULL; 6105 nla_put_failure: 6106 nlmsg_free(msg); 6107 return NULL; 6108} 6109 6110 6111static int wpa_driver_nl80211_send_mntr(struct wpa_driver_nl80211_data *drv, 6112 const void *data, size_t len, 6113 int encrypt, int noack) 6114{ 6115 __u8 rtap_hdr[] = { 6116 0x00, 0x00, /* radiotap version */ 6117 0x0e, 0x00, /* radiotap length */ 6118 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */ 6119 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */ 6120 0x00, /* padding */ 6121 0x00, 0x00, /* RX and TX flags to indicate that */ 6122 0x00, 0x00, /* this is the injected frame directly */ 6123 }; 6124 struct iovec iov[2] = { 6125 { 6126 .iov_base = &rtap_hdr, 6127 .iov_len = sizeof(rtap_hdr), 6128 }, 6129 { 6130 .iov_base = (void *) data, 6131 .iov_len = len, 6132 } 6133 }; 6134 struct msghdr msg = { 6135 .msg_name = NULL, 6136 .msg_namelen = 0, 6137 .msg_iov = iov, 6138 .msg_iovlen = 2, 6139 .msg_control = NULL, 6140 .msg_controllen = 0, 6141 .msg_flags = 0, 6142 }; 6143 int res; 6144 u16 txflags = 0; 6145 6146 if (encrypt) 6147 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP; 6148 6149 if (drv->monitor_sock < 0) { 6150 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available " 6151 "for %s", __func__); 6152 return -1; 6153 } 6154 6155 if (noack) 6156 txflags |= IEEE80211_RADIOTAP_F_TX_NOACK; 6157 WPA_PUT_LE16(&rtap_hdr[12], txflags); 6158 6159 res = sendmsg(drv->monitor_sock, &msg, 0); 6160 if (res < 0) { 6161 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno)); 6162 return -1; 6163 } 6164 return 0; 6165} 6166 6167 6168static int wpa_driver_nl80211_send_frame(struct i802_bss *bss, 6169 const void *data, size_t len, 6170 int encrypt, int noack, 6171 unsigned int freq, int no_cck, 6172 int offchanok, unsigned int wait_time) 6173{ 6174 struct wpa_driver_nl80211_data *drv = bss->drv; 6175 u64 cookie; 6176 int res; 6177 6178 if (freq == 0) { 6179 wpa_printf(MSG_DEBUG, "nl80211: send_frame - Use bss->freq=%u", 6180 bss->freq); 6181 freq = bss->freq; 6182 } 6183 6184 if (drv->use_monitor) { 6185 wpa_printf(MSG_DEBUG, "nl80211: send_frame(freq=%u bss->freq=%u) -> send_mntr", 6186 freq, bss->freq); 6187 return wpa_driver_nl80211_send_mntr(drv, data, len, 6188 encrypt, noack); 6189 } 6190 6191 wpa_printf(MSG_DEBUG, "nl80211: send_frame -> send_frame_cmd"); 6192 res = nl80211_send_frame_cmd(bss, freq, wait_time, data, len, 6193 &cookie, no_cck, noack, offchanok); 6194 if (res == 0 && !noack) { 6195 const struct ieee80211_mgmt *mgmt; 6196 u16 fc; 6197 6198 mgmt = (const struct ieee80211_mgmt *) data; 6199 fc = le_to_host16(mgmt->frame_control); 6200 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6201 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_ACTION) { 6202 wpa_printf(MSG_MSGDUMP, 6203 "nl80211: Update send_action_cookie from 0x%llx to 0x%llx", 6204 (long long unsigned int) 6205 drv->send_action_cookie, 6206 (long long unsigned int) cookie); 6207 drv->send_action_cookie = cookie; 6208 } 6209 } 6210 6211 return res; 6212} 6213 6214 6215static int wpa_driver_nl80211_send_mlme(struct i802_bss *bss, const u8 *data, 6216 size_t data_len, int noack, 6217 unsigned int freq, int no_cck, 6218 int offchanok, 6219 unsigned int wait_time) 6220{ 6221 struct wpa_driver_nl80211_data *drv = bss->drv; 6222 struct ieee80211_mgmt *mgmt; 6223 int encrypt = 1; 6224 u16 fc; 6225 6226 mgmt = (struct ieee80211_mgmt *) data; 6227 fc = le_to_host16(mgmt->frame_control); 6228 wpa_printf(MSG_DEBUG, "nl80211: send_mlme - noack=%d freq=%u no_cck=%d offchanok=%d wait_time=%u fc=0x%x nlmode=%d", 6229 noack, freq, no_cck, offchanok, wait_time, fc, drv->nlmode); 6230 6231 if ((is_sta_interface(drv->nlmode) || 6232 drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) && 6233 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6234 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) { 6235 /* 6236 * The use of last_mgmt_freq is a bit of a hack, 6237 * but it works due to the single-threaded nature 6238 * of wpa_supplicant. 6239 */ 6240 if (freq == 0) { 6241 wpa_printf(MSG_DEBUG, "nl80211: Use last_mgmt_freq=%d", 6242 drv->last_mgmt_freq); 6243 freq = drv->last_mgmt_freq; 6244 } 6245 return nl80211_send_frame_cmd(bss, freq, 0, 6246 data, data_len, NULL, 1, noack, 6247 1); 6248 } 6249 6250 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) { 6251 if (freq == 0) { 6252 wpa_printf(MSG_DEBUG, "nl80211: Use bss->freq=%d", 6253 bss->freq); 6254 freq = bss->freq; 6255 } 6256 return nl80211_send_frame_cmd(bss, freq, 6257 (int) freq == bss->freq ? 0 : 6258 wait_time, 6259 data, data_len, 6260 &drv->send_action_cookie, 6261 no_cck, noack, offchanok); 6262 } 6263 6264 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6265 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) { 6266 /* 6267 * Only one of the authentication frame types is encrypted. 6268 * In order for static WEP encryption to work properly (i.e., 6269 * to not encrypt the frame), we need to tell mac80211 about 6270 * the frames that must not be encrypted. 6271 */ 6272 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg); 6273 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction); 6274 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3) 6275 encrypt = 0; 6276 } 6277 6278 wpa_printf(MSG_DEBUG, "nl80211: send_mlme -> send_frame"); 6279 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 6280 noack, freq, no_cck, offchanok, 6281 wait_time); 6282} 6283 6284 6285static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble, 6286 int slot, int ht_opmode, int ap_isolate, 6287 int *basic_rates) 6288{ 6289 struct wpa_driver_nl80211_data *drv = bss->drv; 6290 struct nl_msg *msg; 6291 6292 msg = nlmsg_alloc(); 6293 if (!msg) 6294 return -ENOMEM; 6295 6296 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS); 6297 6298 if (cts >= 0) 6299 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts); 6300 if (preamble >= 0) 6301 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble); 6302 if (slot >= 0) 6303 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot); 6304 if (ht_opmode >= 0) 6305 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode); 6306 if (ap_isolate >= 0) 6307 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate); 6308 6309 if (basic_rates) { 6310 u8 rates[NL80211_MAX_SUPP_RATES]; 6311 u8 rates_len = 0; 6312 int i; 6313 6314 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; 6315 i++) 6316 rates[rates_len++] = basic_rates[i] / 5; 6317 6318 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates); 6319 } 6320 6321 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 6322 6323 return send_and_recv_msgs(drv, msg, NULL, NULL); 6324 nla_put_failure: 6325 nlmsg_free(msg); 6326 return -ENOBUFS; 6327} 6328 6329 6330static int wpa_driver_nl80211_set_acl(void *priv, 6331 struct hostapd_acl_params *params) 6332{ 6333 struct i802_bss *bss = priv; 6334 struct wpa_driver_nl80211_data *drv = bss->drv; 6335 struct nl_msg *msg; 6336 struct nlattr *acl; 6337 unsigned int i; 6338 int ret = 0; 6339 6340 if (!(drv->capa.max_acl_mac_addrs)) 6341 return -ENOTSUP; 6342 6343 if (params->num_mac_acl > drv->capa.max_acl_mac_addrs) 6344 return -ENOTSUP; 6345 6346 msg = nlmsg_alloc(); 6347 if (!msg) 6348 return -ENOMEM; 6349 6350 wpa_printf(MSG_DEBUG, "nl80211: Set %s ACL (num_mac_acl=%u)", 6351 params->acl_policy ? "Accept" : "Deny", params->num_mac_acl); 6352 6353 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_MAC_ACL); 6354 6355 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6356 6357 NLA_PUT_U32(msg, NL80211_ATTR_ACL_POLICY, params->acl_policy ? 6358 NL80211_ACL_POLICY_DENY_UNLESS_LISTED : 6359 NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED); 6360 6361 acl = nla_nest_start(msg, NL80211_ATTR_MAC_ADDRS); 6362 if (acl == NULL) 6363 goto nla_put_failure; 6364 6365 for (i = 0; i < params->num_mac_acl; i++) 6366 NLA_PUT(msg, i + 1, ETH_ALEN, params->mac_acl[i].addr); 6367 6368 nla_nest_end(msg, acl); 6369 6370 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6371 msg = NULL; 6372 if (ret) { 6373 wpa_printf(MSG_DEBUG, "nl80211: Failed to set MAC ACL: %d (%s)", 6374 ret, strerror(-ret)); 6375 } 6376 6377nla_put_failure: 6378 nlmsg_free(msg); 6379 6380 return ret; 6381} 6382 6383 6384static int wpa_driver_nl80211_set_ap(void *priv, 6385 struct wpa_driver_ap_params *params) 6386{ 6387 struct i802_bss *bss = priv; 6388 struct wpa_driver_nl80211_data *drv = bss->drv; 6389 struct nl_msg *msg; 6390 u8 cmd = NL80211_CMD_NEW_BEACON; 6391 int ret; 6392 int beacon_set; 6393 int ifindex = if_nametoindex(bss->ifname); 6394 int num_suites; 6395 u32 suites[10]; 6396 u32 ver; 6397 6398 beacon_set = bss->beacon_set; 6399 6400 msg = nlmsg_alloc(); 6401 if (!msg) 6402 return -ENOMEM; 6403 6404 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)", 6405 beacon_set); 6406 if (beacon_set) 6407 cmd = NL80211_CMD_SET_BEACON; 6408 6409 nl80211_cmd(drv, msg, 0, cmd); 6410 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon head", 6411 params->head, params->head_len); 6412 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head); 6413 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon tail", 6414 params->tail, params->tail_len); 6415 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail); 6416 wpa_printf(MSG_DEBUG, "nl80211: ifindex=%d", ifindex); 6417 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 6418 wpa_printf(MSG_DEBUG, "nl80211: beacon_int=%d", params->beacon_int); 6419 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int); 6420 wpa_printf(MSG_DEBUG, "nl80211: dtim_period=%d", params->dtim_period); 6421 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period); 6422 wpa_hexdump_ascii(MSG_DEBUG, "nl80211: ssid", 6423 params->ssid, params->ssid_len); 6424 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 6425 params->ssid); 6426 if (params->proberesp && params->proberesp_len) { 6427 wpa_hexdump(MSG_DEBUG, "nl80211: proberesp (offload)", 6428 params->proberesp, params->proberesp_len); 6429 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len, 6430 params->proberesp); 6431 } 6432 switch (params->hide_ssid) { 6433 case NO_SSID_HIDING: 6434 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID not in use"); 6435 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 6436 NL80211_HIDDEN_SSID_NOT_IN_USE); 6437 break; 6438 case HIDDEN_SSID_ZERO_LEN: 6439 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero len"); 6440 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 6441 NL80211_HIDDEN_SSID_ZERO_LEN); 6442 break; 6443 case HIDDEN_SSID_ZERO_CONTENTS: 6444 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero contents"); 6445 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 6446 NL80211_HIDDEN_SSID_ZERO_CONTENTS); 6447 break; 6448 } 6449 wpa_printf(MSG_DEBUG, "nl80211: privacy=%d", params->privacy); 6450 if (params->privacy) 6451 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 6452 wpa_printf(MSG_DEBUG, "nl80211: auth_algs=0x%x", params->auth_algs); 6453 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) == 6454 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) { 6455 /* Leave out the attribute */ 6456 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED) 6457 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 6458 NL80211_AUTHTYPE_SHARED_KEY); 6459 else 6460 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 6461 NL80211_AUTHTYPE_OPEN_SYSTEM); 6462 6463 wpa_printf(MSG_DEBUG, "nl80211: wpa_version=0x%x", params->wpa_version); 6464 ver = 0; 6465 if (params->wpa_version & WPA_PROTO_WPA) 6466 ver |= NL80211_WPA_VERSION_1; 6467 if (params->wpa_version & WPA_PROTO_RSN) 6468 ver |= NL80211_WPA_VERSION_2; 6469 if (ver) 6470 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 6471 6472 wpa_printf(MSG_DEBUG, "nl80211: key_mgmt_suites=0x%x", 6473 params->key_mgmt_suites); 6474 num_suites = 0; 6475 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X) 6476 suites[num_suites++] = WLAN_AKM_SUITE_8021X; 6477 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK) 6478 suites[num_suites++] = WLAN_AKM_SUITE_PSK; 6479 if (num_suites) { 6480 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES, 6481 num_suites * sizeof(u32), suites); 6482 } 6483 6484 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X && 6485 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)) 6486 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT); 6487 6488 wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x", 6489 params->pairwise_ciphers); 6490 num_suites = 0; 6491 if (params->pairwise_ciphers & WPA_CIPHER_CCMP) 6492 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP; 6493 if (params->pairwise_ciphers & WPA_CIPHER_GCMP) 6494 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP; 6495 if (params->pairwise_ciphers & WPA_CIPHER_TKIP) 6496 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP; 6497 if (params->pairwise_ciphers & WPA_CIPHER_WEP104) 6498 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104; 6499 if (params->pairwise_ciphers & WPA_CIPHER_WEP40) 6500 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40; 6501 if (num_suites) { 6502 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, 6503 num_suites * sizeof(u32), suites); 6504 } 6505 6506 wpa_printf(MSG_DEBUG, "nl80211: group_cipher=0x%x", 6507 params->group_cipher); 6508 switch (params->group_cipher) { 6509 case WPA_CIPHER_CCMP: 6510 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6511 WLAN_CIPHER_SUITE_CCMP); 6512 break; 6513 case WPA_CIPHER_GCMP: 6514 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6515 WLAN_CIPHER_SUITE_GCMP); 6516 break; 6517 case WPA_CIPHER_TKIP: 6518 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6519 WLAN_CIPHER_SUITE_TKIP); 6520 break; 6521 case WPA_CIPHER_WEP104: 6522 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6523 WLAN_CIPHER_SUITE_WEP104); 6524 break; 6525 case WPA_CIPHER_WEP40: 6526 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6527 WLAN_CIPHER_SUITE_WEP40); 6528 break; 6529 } 6530 6531 if (params->beacon_ies) { 6532 wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies", 6533 params->beacon_ies); 6534 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies), 6535 wpabuf_head(params->beacon_ies)); 6536 } 6537 if (params->proberesp_ies) { 6538 wpa_hexdump_buf(MSG_DEBUG, "nl80211: proberesp_ies", 6539 params->proberesp_ies); 6540 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, 6541 wpabuf_len(params->proberesp_ies), 6542 wpabuf_head(params->proberesp_ies)); 6543 } 6544 if (params->assocresp_ies) { 6545 wpa_hexdump_buf(MSG_DEBUG, "nl80211: assocresp_ies", 6546 params->assocresp_ies); 6547 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP, 6548 wpabuf_len(params->assocresp_ies), 6549 wpabuf_head(params->assocresp_ies)); 6550 } 6551 6552 if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) { 6553 wpa_printf(MSG_DEBUG, "nl80211: ap_max_inactivity=%d", 6554 params->ap_max_inactivity); 6555 NLA_PUT_U16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT, 6556 params->ap_max_inactivity); 6557 } 6558 6559 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6560 if (ret) { 6561 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)", 6562 ret, strerror(-ret)); 6563 } else { 6564 bss->beacon_set = 1; 6565 nl80211_set_bss(bss, params->cts_protect, params->preamble, 6566 params->short_slot_time, params->ht_opmode, 6567 params->isolate, params->basic_rates); 6568 } 6569 return ret; 6570 nla_put_failure: 6571 nlmsg_free(msg); 6572 return -ENOBUFS; 6573} 6574 6575 6576static int wpa_driver_nl80211_set_freq(struct i802_bss *bss, 6577 struct hostapd_freq_params *freq) 6578{ 6579 struct wpa_driver_nl80211_data *drv = bss->drv; 6580 struct nl_msg *msg; 6581 int ret; 6582 6583 wpa_printf(MSG_DEBUG, "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d," 6584 " bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)", 6585 freq->freq, freq->ht_enabled, freq->vht_enabled, 6586 freq->bandwidth, freq->center_freq1, freq->center_freq2); 6587 msg = nlmsg_alloc(); 6588 if (!msg) 6589 return -1; 6590 6591 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 6592 6593 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6594 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); 6595 if (freq->vht_enabled) { 6596 switch (freq->bandwidth) { 6597 case 20: 6598 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6599 NL80211_CHAN_WIDTH_20); 6600 break; 6601 case 40: 6602 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6603 NL80211_CHAN_WIDTH_40); 6604 break; 6605 case 80: 6606 if (freq->center_freq2) 6607 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6608 NL80211_CHAN_WIDTH_80P80); 6609 else 6610 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6611 NL80211_CHAN_WIDTH_80); 6612 break; 6613 case 160: 6614 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6615 NL80211_CHAN_WIDTH_160); 6616 break; 6617 default: 6618 return -1; 6619 } 6620 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); 6621 if (freq->center_freq2) 6622 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, 6623 freq->center_freq2); 6624 } else if (freq->ht_enabled) { 6625 switch (freq->sec_channel_offset) { 6626 case -1: 6627 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6628 NL80211_CHAN_HT40MINUS); 6629 break; 6630 case 1: 6631 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6632 NL80211_CHAN_HT40PLUS); 6633 break; 6634 default: 6635 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6636 NL80211_CHAN_HT20); 6637 break; 6638 } 6639 } 6640 6641 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6642 msg = NULL; 6643 if (ret == 0) { 6644 bss->freq = freq->freq; 6645 return 0; 6646 } 6647 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): " 6648 "%d (%s)", freq->freq, ret, strerror(-ret)); 6649nla_put_failure: 6650 nlmsg_free(msg); 6651 return -1; 6652} 6653 6654 6655static u32 sta_flags_nl80211(int flags) 6656{ 6657 u32 f = 0; 6658 6659 if (flags & WPA_STA_AUTHORIZED) 6660 f |= BIT(NL80211_STA_FLAG_AUTHORIZED); 6661 if (flags & WPA_STA_WMM) 6662 f |= BIT(NL80211_STA_FLAG_WME); 6663 if (flags & WPA_STA_SHORT_PREAMBLE) 6664 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); 6665 if (flags & WPA_STA_MFP) 6666 f |= BIT(NL80211_STA_FLAG_MFP); 6667 if (flags & WPA_STA_TDLS_PEER) 6668 f |= BIT(NL80211_STA_FLAG_TDLS_PEER); 6669 6670 return f; 6671} 6672 6673 6674static int wpa_driver_nl80211_sta_add(void *priv, 6675 struct hostapd_sta_add_params *params) 6676{ 6677 struct i802_bss *bss = priv; 6678 struct wpa_driver_nl80211_data *drv = bss->drv; 6679 struct nl_msg *msg; 6680 struct nl80211_sta_flag_update upd; 6681 int ret = -ENOBUFS; 6682 6683 if ((params->flags & WPA_STA_TDLS_PEER) && 6684 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 6685 return -EOPNOTSUPP; 6686 6687 msg = nlmsg_alloc(); 6688 if (!msg) 6689 return -ENOMEM; 6690 6691 wpa_printf(MSG_DEBUG, "nl80211: %s STA " MACSTR, 6692 params->set ? "Set" : "Add", MAC2STR(params->addr)); 6693 nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION : 6694 NL80211_CMD_NEW_STATION); 6695 6696 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 6697 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr); 6698 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len, 6699 params->supp_rates); 6700 wpa_hexdump(MSG_DEBUG, " * supported rates", params->supp_rates, 6701 params->supp_rates_len); 6702 if (!params->set) { 6703 if (params->aid) { 6704 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid); 6705 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid); 6706 } else { 6707 /* 6708 * cfg80211 validates that AID is non-zero, so we have 6709 * to make this a non-zero value for the TDLS case where 6710 * a dummy STA entry is used for now. 6711 */ 6712 wpa_printf(MSG_DEBUG, " * aid=1 (TDLS workaround)"); 6713 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, 1); 6714 } 6715 wpa_printf(MSG_DEBUG, " * listen_interval=%u", 6716 params->listen_interval); 6717 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, 6718 params->listen_interval); 6719 } else if (params->aid && (params->flags & WPA_STA_TDLS_PEER)) { 6720 wpa_printf(MSG_DEBUG, " * peer_aid=%u", params->aid); 6721 NLA_PUT_U16(msg, NL80211_ATTR_PEER_AID, params->aid); 6722 } 6723 if (params->ht_capabilities) { 6724 wpa_hexdump(MSG_DEBUG, " * ht_capabilities", 6725 (u8 *) params->ht_capabilities, 6726 sizeof(*params->ht_capabilities)); 6727 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, 6728 sizeof(*params->ht_capabilities), 6729 params->ht_capabilities); 6730 } 6731 6732 if (params->vht_capabilities) { 6733 wpa_hexdump(MSG_DEBUG, " * vht_capabilities", 6734 (u8 *) params->vht_capabilities, 6735 sizeof(*params->vht_capabilities)); 6736 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, 6737 sizeof(*params->vht_capabilities), 6738 params->vht_capabilities); 6739 } 6740 6741 wpa_printf(MSG_DEBUG, " * capability=0x%x", params->capability); 6742 NLA_PUT_U16(msg, NL80211_ATTR_STA_CAPABILITY, params->capability); 6743 6744 if (params->ext_capab) { 6745 wpa_hexdump(MSG_DEBUG, " * ext_capab", 6746 params->ext_capab, params->ext_capab_len); 6747 NLA_PUT(msg, NL80211_ATTR_STA_EXT_CAPABILITY, 6748 params->ext_capab_len, params->ext_capab); 6749 } 6750 6751 os_memset(&upd, 0, sizeof(upd)); 6752 upd.mask = sta_flags_nl80211(params->flags); 6753 upd.set = upd.mask; 6754 wpa_printf(MSG_DEBUG, " * flags set=0x%x mask=0x%x", 6755 upd.set, upd.mask); 6756 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 6757 6758 if (params->flags & WPA_STA_WMM) { 6759 struct nlattr *wme = nla_nest_start(msg, NL80211_ATTR_STA_WME); 6760 6761 if (!wme) 6762 goto nla_put_failure; 6763 6764 wpa_printf(MSG_DEBUG, " * qosinfo=0x%x", params->qosinfo); 6765 NLA_PUT_U8(msg, NL80211_STA_WME_UAPSD_QUEUES, 6766 params->qosinfo & WMM_QOSINFO_STA_AC_MASK); 6767 NLA_PUT_U8(msg, NL80211_STA_WME_MAX_SP, 6768 (params->qosinfo >> WMM_QOSINFO_STA_SP_SHIFT) & 6769 WMM_QOSINFO_STA_SP_MASK); 6770 nla_nest_end(msg, wme); 6771 } 6772 6773 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6774 msg = NULL; 6775 if (ret) 6776 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION " 6777 "result: %d (%s)", params->set ? "SET" : "NEW", ret, 6778 strerror(-ret)); 6779 if (ret == -EEXIST) 6780 ret = 0; 6781 nla_put_failure: 6782 nlmsg_free(msg); 6783 return ret; 6784} 6785 6786 6787static int wpa_driver_nl80211_sta_remove(struct i802_bss *bss, const u8 *addr) 6788{ 6789 struct wpa_driver_nl80211_data *drv = bss->drv; 6790 struct nl_msg *msg; 6791 int ret; 6792 6793 msg = nlmsg_alloc(); 6794 if (!msg) 6795 return -ENOMEM; 6796 6797 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 6798 6799 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 6800 if_nametoindex(bss->ifname)); 6801 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 6802 6803 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6804 wpa_printf(MSG_DEBUG, "nl80211: sta_remove -> DEL_STATION %s " MACSTR 6805 " --> %d (%s)", 6806 bss->ifname, MAC2STR(addr), ret, strerror(-ret)); 6807 if (ret == -ENOENT) 6808 return 0; 6809 return ret; 6810 nla_put_failure: 6811 nlmsg_free(msg); 6812 return -ENOBUFS; 6813} 6814 6815 6816static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, 6817 int ifidx) 6818{ 6819 struct nl_msg *msg; 6820 6821 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx); 6822 6823 /* stop listening for EAPOL on this interface */ 6824 del_ifidx(drv, ifidx); 6825 6826 msg = nlmsg_alloc(); 6827 if (!msg) 6828 goto nla_put_failure; 6829 6830 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 6831 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx); 6832 6833 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 6834 return; 6835 msg = NULL; 6836 nla_put_failure: 6837 nlmsg_free(msg); 6838 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx); 6839} 6840 6841 6842static const char * nl80211_iftype_str(enum nl80211_iftype mode) 6843{ 6844 switch (mode) { 6845 case NL80211_IFTYPE_ADHOC: 6846 return "ADHOC"; 6847 case NL80211_IFTYPE_STATION: 6848 return "STATION"; 6849 case NL80211_IFTYPE_AP: 6850 return "AP"; 6851 case NL80211_IFTYPE_AP_VLAN: 6852 return "AP_VLAN"; 6853 case NL80211_IFTYPE_WDS: 6854 return "WDS"; 6855 case NL80211_IFTYPE_MONITOR: 6856 return "MONITOR"; 6857 case NL80211_IFTYPE_MESH_POINT: 6858 return "MESH_POINT"; 6859 case NL80211_IFTYPE_P2P_CLIENT: 6860 return "P2P_CLIENT"; 6861 case NL80211_IFTYPE_P2P_GO: 6862 return "P2P_GO"; 6863 case NL80211_IFTYPE_P2P_DEVICE: 6864 return "P2P_DEVICE"; 6865 default: 6866 return "unknown"; 6867 } 6868} 6869 6870 6871static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv, 6872 const char *ifname, 6873 enum nl80211_iftype iftype, 6874 const u8 *addr, int wds, 6875 int (*handler)(struct nl_msg *, void *), 6876 void *arg) 6877{ 6878 struct nl_msg *msg; 6879 int ifidx; 6880 int ret = -ENOBUFS; 6881 6882 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)", 6883 iftype, nl80211_iftype_str(iftype)); 6884 6885 msg = nlmsg_alloc(); 6886 if (!msg) 6887 return -1; 6888 6889 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE); 6890 if (nl80211_set_iface_id(msg, &drv->first_bss) < 0) 6891 goto nla_put_failure; 6892 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname); 6893 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype); 6894 6895 if (iftype == NL80211_IFTYPE_MONITOR) { 6896 struct nlattr *flags; 6897 6898 flags = nla_nest_start(msg, NL80211_ATTR_MNTR_FLAGS); 6899 if (!flags) 6900 goto nla_put_failure; 6901 6902 NLA_PUT_FLAG(msg, NL80211_MNTR_FLAG_COOK_FRAMES); 6903 6904 nla_nest_end(msg, flags); 6905 } else if (wds) { 6906 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds); 6907 } 6908 6909 ret = send_and_recv_msgs(drv, msg, handler, arg); 6910 msg = NULL; 6911 if (ret) { 6912 nla_put_failure: 6913 nlmsg_free(msg); 6914 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)", 6915 ifname, ret, strerror(-ret)); 6916 return ret; 6917 } 6918 6919 if (iftype == NL80211_IFTYPE_P2P_DEVICE) 6920 return 0; 6921 6922 ifidx = if_nametoindex(ifname); 6923 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d", 6924 ifname, ifidx); 6925 6926 if (ifidx <= 0) 6927 return -1; 6928 6929 /* start listening for EAPOL on this interface */ 6930 add_ifidx(drv, ifidx); 6931 6932 if (addr && iftype != NL80211_IFTYPE_MONITOR && 6933 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) { 6934 nl80211_remove_iface(drv, ifidx); 6935 return -1; 6936 } 6937 6938 return ifidx; 6939} 6940 6941 6942static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv, 6943 const char *ifname, enum nl80211_iftype iftype, 6944 const u8 *addr, int wds, 6945 int (*handler)(struct nl_msg *, void *), 6946 void *arg) 6947{ 6948 int ret; 6949 6950 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds, handler, 6951 arg); 6952 6953 /* if error occurred and interface exists already */ 6954 if (ret == -ENFILE && if_nametoindex(ifname)) { 6955 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname); 6956 6957 /* Try to remove the interface that was already there. */ 6958 nl80211_remove_iface(drv, if_nametoindex(ifname)); 6959 6960 /* Try to create the interface again */ 6961 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, 6962 wds, handler, arg); 6963 } 6964 6965 if (ret >= 0 && is_p2p_net_interface(iftype)) 6966 nl80211_disable_11b_rates(drv, ret, 1); 6967 6968 return ret; 6969} 6970 6971 6972static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok) 6973{ 6974 struct ieee80211_hdr *hdr; 6975 u16 fc; 6976 union wpa_event_data event; 6977 6978 hdr = (struct ieee80211_hdr *) buf; 6979 fc = le_to_host16(hdr->frame_control); 6980 6981 os_memset(&event, 0, sizeof(event)); 6982 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 6983 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 6984 event.tx_status.dst = hdr->addr1; 6985 event.tx_status.data = buf; 6986 event.tx_status.data_len = len; 6987 event.tx_status.ack = ok; 6988 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event); 6989} 6990 6991 6992static void from_unknown_sta(struct wpa_driver_nl80211_data *drv, 6993 u8 *buf, size_t len) 6994{ 6995 struct ieee80211_hdr *hdr = (void *)buf; 6996 u16 fc; 6997 union wpa_event_data event; 6998 6999 if (len < sizeof(*hdr)) 7000 return; 7001 7002 fc = le_to_host16(hdr->frame_control); 7003 7004 os_memset(&event, 0, sizeof(event)); 7005 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len); 7006 event.rx_from_unknown.addr = hdr->addr2; 7007 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) == 7008 (WLAN_FC_FROMDS | WLAN_FC_TODS); 7009 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 7010} 7011 7012 7013static void handle_frame(struct wpa_driver_nl80211_data *drv, 7014 u8 *buf, size_t len, int datarate, int ssi_signal) 7015{ 7016 struct ieee80211_hdr *hdr; 7017 u16 fc; 7018 union wpa_event_data event; 7019 7020 hdr = (struct ieee80211_hdr *) buf; 7021 fc = le_to_host16(hdr->frame_control); 7022 7023 switch (WLAN_FC_GET_TYPE(fc)) { 7024 case WLAN_FC_TYPE_MGMT: 7025 os_memset(&event, 0, sizeof(event)); 7026 event.rx_mgmt.frame = buf; 7027 event.rx_mgmt.frame_len = len; 7028 event.rx_mgmt.datarate = datarate; 7029 event.rx_mgmt.ssi_signal = ssi_signal; 7030 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 7031 break; 7032 case WLAN_FC_TYPE_CTRL: 7033 /* can only get here with PS-Poll frames */ 7034 wpa_printf(MSG_DEBUG, "CTRL"); 7035 from_unknown_sta(drv, buf, len); 7036 break; 7037 case WLAN_FC_TYPE_DATA: 7038 from_unknown_sta(drv, buf, len); 7039 break; 7040 } 7041} 7042 7043 7044static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx) 7045{ 7046 struct wpa_driver_nl80211_data *drv = eloop_ctx; 7047 int len; 7048 unsigned char buf[3000]; 7049 struct ieee80211_radiotap_iterator iter; 7050 int ret; 7051 int datarate = 0, ssi_signal = 0; 7052 int injected = 0, failed = 0, rxflags = 0; 7053 7054 len = recv(sock, buf, sizeof(buf), 0); 7055 if (len < 0) { 7056 perror("recv"); 7057 return; 7058 } 7059 7060 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) { 7061 printf("received invalid radiotap frame\n"); 7062 return; 7063 } 7064 7065 while (1) { 7066 ret = ieee80211_radiotap_iterator_next(&iter); 7067 if (ret == -ENOENT) 7068 break; 7069 if (ret) { 7070 printf("received invalid radiotap frame (%d)\n", ret); 7071 return; 7072 } 7073 switch (iter.this_arg_index) { 7074 case IEEE80211_RADIOTAP_FLAGS: 7075 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS) 7076 len -= 4; 7077 break; 7078 case IEEE80211_RADIOTAP_RX_FLAGS: 7079 rxflags = 1; 7080 break; 7081 case IEEE80211_RADIOTAP_TX_FLAGS: 7082 injected = 1; 7083 failed = le_to_host16((*(uint16_t *) iter.this_arg)) & 7084 IEEE80211_RADIOTAP_F_TX_FAIL; 7085 break; 7086 case IEEE80211_RADIOTAP_DATA_RETRIES: 7087 break; 7088 case IEEE80211_RADIOTAP_CHANNEL: 7089 /* TODO: convert from freq/flags to channel number */ 7090 break; 7091 case IEEE80211_RADIOTAP_RATE: 7092 datarate = *iter.this_arg * 5; 7093 break; 7094 case IEEE80211_RADIOTAP_DBM_ANTSIGNAL: 7095 ssi_signal = (s8) *iter.this_arg; 7096 break; 7097 } 7098 } 7099 7100 if (rxflags && injected) 7101 return; 7102 7103 if (!injected) 7104 handle_frame(drv, buf + iter.max_length, 7105 len - iter.max_length, datarate, ssi_signal); 7106 else 7107 handle_tx_callback(drv->ctx, buf + iter.max_length, 7108 len - iter.max_length, !failed); 7109} 7110 7111 7112/* 7113 * we post-process the filter code later and rewrite 7114 * this to the offset to the last instruction 7115 */ 7116#define PASS 0xFF 7117#define FAIL 0xFE 7118 7119static struct sock_filter msock_filter_insns[] = { 7120 /* 7121 * do a little-endian load of the radiotap length field 7122 */ 7123 /* load lower byte into A */ 7124 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2), 7125 /* put it into X (== index register) */ 7126 BPF_STMT(BPF_MISC| BPF_TAX, 0), 7127 /* load upper byte into A */ 7128 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3), 7129 /* left-shift it by 8 */ 7130 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8), 7131 /* or with X */ 7132 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0), 7133 /* put result into X */ 7134 BPF_STMT(BPF_MISC| BPF_TAX, 0), 7135 7136 /* 7137 * Allow management frames through, this also gives us those 7138 * management frames that we sent ourselves with status 7139 */ 7140 /* load the lower byte of the IEEE 802.11 frame control field */ 7141 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7142 /* mask off frame type and version */ 7143 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF), 7144 /* accept frame if it's both 0, fall through otherwise */ 7145 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0), 7146 7147 /* 7148 * TODO: add a bit to radiotap RX flags that indicates 7149 * that the sending station is not associated, then 7150 * add a filter here that filters on our DA and that flag 7151 * to allow us to deauth frames to that bad station. 7152 * 7153 * For now allow all To DS data frames through. 7154 */ 7155 /* load the IEEE 802.11 frame control field */ 7156 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0), 7157 /* mask off frame type, version and DS status */ 7158 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03), 7159 /* accept frame if version 0, type 2 and To DS, fall through otherwise 7160 */ 7161 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0), 7162 7163#if 0 7164 /* 7165 * drop non-data frames 7166 */ 7167 /* load the lower byte of the frame control field */ 7168 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7169 /* mask off QoS bit */ 7170 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c), 7171 /* drop non-data frames */ 7172 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL), 7173#endif 7174 /* load the upper byte of the frame control field */ 7175 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1), 7176 /* mask off toDS/fromDS */ 7177 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03), 7178 /* accept WDS frames */ 7179 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0), 7180 7181 /* 7182 * add header length to index 7183 */ 7184 /* load the lower byte of the frame control field */ 7185 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7186 /* mask off QoS bit */ 7187 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80), 7188 /* right shift it by 6 to give 0 or 2 */ 7189 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6), 7190 /* add data frame header length */ 7191 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24), 7192 /* add index, was start of 802.11 header */ 7193 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), 7194 /* move to index, now start of LL header */ 7195 BPF_STMT(BPF_MISC | BPF_TAX, 0), 7196 7197 /* 7198 * Accept empty data frames, we use those for 7199 * polling activity. 7200 */ 7201 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0), 7202 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0), 7203 7204 /* 7205 * Accept EAPOL frames 7206 */ 7207 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0), 7208 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL), 7209 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4), 7210 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL), 7211 7212 /* keep these last two statements or change the code below */ 7213 /* return 0 == "DROP" */ 7214 BPF_STMT(BPF_RET | BPF_K, 0), 7215 /* return ~0 == "keep all" */ 7216 BPF_STMT(BPF_RET | BPF_K, ~0), 7217}; 7218 7219static struct sock_fprog msock_filter = { 7220 .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]), 7221 .filter = msock_filter_insns, 7222}; 7223 7224 7225static int add_monitor_filter(int s) 7226{ 7227 int idx; 7228 7229 /* rewrite all PASS/FAIL jump offsets */ 7230 for (idx = 0; idx < msock_filter.len; idx++) { 7231 struct sock_filter *insn = &msock_filter_insns[idx]; 7232 7233 if (BPF_CLASS(insn->code) == BPF_JMP) { 7234 if (insn->code == (BPF_JMP|BPF_JA)) { 7235 if (insn->k == PASS) 7236 insn->k = msock_filter.len - idx - 2; 7237 else if (insn->k == FAIL) 7238 insn->k = msock_filter.len - idx - 3; 7239 } 7240 7241 if (insn->jt == PASS) 7242 insn->jt = msock_filter.len - idx - 2; 7243 else if (insn->jt == FAIL) 7244 insn->jt = msock_filter.len - idx - 3; 7245 7246 if (insn->jf == PASS) 7247 insn->jf = msock_filter.len - idx - 2; 7248 else if (insn->jf == FAIL) 7249 insn->jf = msock_filter.len - idx - 3; 7250 } 7251 } 7252 7253 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER, 7254 &msock_filter, sizeof(msock_filter))) { 7255 perror("SO_ATTACH_FILTER"); 7256 return -1; 7257 } 7258 7259 return 0; 7260} 7261 7262 7263static void nl80211_remove_monitor_interface( 7264 struct wpa_driver_nl80211_data *drv) 7265{ 7266 drv->monitor_refcount--; 7267 if (drv->monitor_refcount > 0) 7268 return; 7269 7270 if (drv->monitor_ifidx >= 0) { 7271 nl80211_remove_iface(drv, drv->monitor_ifidx); 7272 drv->monitor_ifidx = -1; 7273 } 7274 if (drv->monitor_sock >= 0) { 7275 eloop_unregister_read_sock(drv->monitor_sock); 7276 close(drv->monitor_sock); 7277 drv->monitor_sock = -1; 7278 } 7279} 7280 7281 7282static int 7283nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv) 7284{ 7285 char buf[IFNAMSIZ]; 7286 struct sockaddr_ll ll; 7287 int optval; 7288 socklen_t optlen; 7289 7290 if (drv->monitor_ifidx >= 0) { 7291 drv->monitor_refcount++; 7292 return 0; 7293 } 7294 7295 if (os_strncmp(drv->first_bss.ifname, "p2p-", 4) == 0) { 7296 /* 7297 * P2P interface name is of the format p2p-%s-%d. For monitor 7298 * interface name corresponding to P2P GO, replace "p2p-" with 7299 * "mon-" to retain the same interface name length and to 7300 * indicate that it is a monitor interface. 7301 */ 7302 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss.ifname + 4); 7303 } else { 7304 /* Non-P2P interface with AP functionality. */ 7305 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss.ifname); 7306 } 7307 7308 buf[IFNAMSIZ - 1] = '\0'; 7309 7310 drv->monitor_ifidx = 7311 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL, 7312 0, NULL, NULL); 7313 7314 if (drv->monitor_ifidx == -EOPNOTSUPP) { 7315 /* 7316 * This is backward compatibility for a few versions of 7317 * the kernel only that didn't advertise the right 7318 * attributes for the only driver that then supported 7319 * AP mode w/o monitor -- ath6kl. 7320 */ 7321 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support " 7322 "monitor interface type - try to run without it"); 7323 drv->device_ap_sme = 1; 7324 } 7325 7326 if (drv->monitor_ifidx < 0) 7327 return -1; 7328 7329 if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1)) 7330 goto error; 7331 7332 memset(&ll, 0, sizeof(ll)); 7333 ll.sll_family = AF_PACKET; 7334 ll.sll_ifindex = drv->monitor_ifidx; 7335 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)); 7336 if (drv->monitor_sock < 0) { 7337 perror("socket[PF_PACKET,SOCK_RAW]"); 7338 goto error; 7339 } 7340 7341 if (add_monitor_filter(drv->monitor_sock)) { 7342 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor " 7343 "interface; do filtering in user space"); 7344 /* This works, but will cost in performance. */ 7345 } 7346 7347 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) { 7348 perror("monitor socket bind"); 7349 goto error; 7350 } 7351 7352 optlen = sizeof(optval); 7353 optval = 20; 7354 if (setsockopt 7355 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) { 7356 perror("Failed to set socket priority"); 7357 goto error; 7358 } 7359 7360 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read, 7361 drv, NULL)) { 7362 printf("Could not register monitor read socket\n"); 7363 goto error; 7364 } 7365 7366 return 0; 7367 error: 7368 nl80211_remove_monitor_interface(drv); 7369 return -1; 7370} 7371 7372 7373static int nl80211_setup_ap(struct i802_bss *bss) 7374{ 7375 struct wpa_driver_nl80211_data *drv = bss->drv; 7376 7377 wpa_printf(MSG_DEBUG, "nl80211: Setup AP - device_ap_sme=%d " 7378 "use_monitor=%d", drv->device_ap_sme, drv->use_monitor); 7379 7380 /* 7381 * Disable Probe Request reporting unless we need it in this way for 7382 * devices that include the AP SME, in the other case (unless using 7383 * monitor iface) we'll get it through the nl_mgmt socket instead. 7384 */ 7385 if (!drv->device_ap_sme) 7386 wpa_driver_nl80211_probe_req_report(bss, 0); 7387 7388 if (!drv->device_ap_sme && !drv->use_monitor) 7389 if (nl80211_mgmt_subscribe_ap(bss)) 7390 return -1; 7391 7392 if (drv->device_ap_sme && !drv->use_monitor) 7393 if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) 7394 return -1; 7395 7396 if (!drv->device_ap_sme && drv->use_monitor && 7397 nl80211_create_monitor_interface(drv) && 7398 !drv->device_ap_sme) 7399 return -1; 7400 7401#ifdef ANDROID_P2P 7402 if (drv->device_ap_sme && drv->use_monitor) 7403 if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) 7404 return -1; 7405 7406 if (drv->use_monitor && 7407 nl80211_create_monitor_interface(drv)) 7408 return -1; 7409#endif 7410 7411 if (drv->device_ap_sme && 7412 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) { 7413 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable " 7414 "Probe Request frame reporting in AP mode"); 7415 /* Try to survive without this */ 7416 } 7417 7418 return 0; 7419} 7420 7421 7422static void nl80211_teardown_ap(struct i802_bss *bss) 7423{ 7424 struct wpa_driver_nl80211_data *drv = bss->drv; 7425 7426 if (drv->device_ap_sme) { 7427 wpa_driver_nl80211_probe_req_report(bss, 0); 7428 if (!drv->use_monitor) 7429 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)"); 7430 } else if (drv->use_monitor) 7431 nl80211_remove_monitor_interface(drv); 7432 else 7433 nl80211_mgmt_unsubscribe(bss, "AP teardown"); 7434 7435 bss->beacon_set = 0; 7436} 7437 7438 7439static int nl80211_send_eapol_data(struct i802_bss *bss, 7440 const u8 *addr, const u8 *data, 7441 size_t data_len) 7442{ 7443 struct sockaddr_ll ll; 7444 int ret; 7445 7446 if (bss->drv->eapol_tx_sock < 0) { 7447 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL"); 7448 return -1; 7449 } 7450 7451 os_memset(&ll, 0, sizeof(ll)); 7452 ll.sll_family = AF_PACKET; 7453 ll.sll_ifindex = bss->ifindex; 7454 ll.sll_protocol = htons(ETH_P_PAE); 7455 ll.sll_halen = ETH_ALEN; 7456 os_memcpy(ll.sll_addr, addr, ETH_ALEN); 7457 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0, 7458 (struct sockaddr *) &ll, sizeof(ll)); 7459 if (ret < 0) 7460 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s", 7461 strerror(errno)); 7462 7463 return ret; 7464} 7465 7466 7467static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 7468 7469static int wpa_driver_nl80211_hapd_send_eapol( 7470 void *priv, const u8 *addr, const u8 *data, 7471 size_t data_len, int encrypt, const u8 *own_addr, u32 flags) 7472{ 7473 struct i802_bss *bss = priv; 7474 struct wpa_driver_nl80211_data *drv = bss->drv; 7475 struct ieee80211_hdr *hdr; 7476 size_t len; 7477 u8 *pos; 7478 int res; 7479 int qos = flags & WPA_STA_WMM; 7480#ifndef ANDROID_P2P 7481 if (drv->device_ap_sme || !drv->use_monitor) 7482#else 7483 if (drv->device_ap_sme && !drv->use_monitor) 7484#endif 7485 return nl80211_send_eapol_data(bss, addr, data, data_len); 7486 7487 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 + 7488 data_len; 7489 hdr = os_zalloc(len); 7490 if (hdr == NULL) { 7491 printf("malloc() failed for i802_send_data(len=%lu)\n", 7492 (unsigned long) len); 7493 return -1; 7494 } 7495 7496 hdr->frame_control = 7497 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA); 7498 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS); 7499 if (encrypt) 7500 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP); 7501 if (qos) { 7502 hdr->frame_control |= 7503 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4); 7504 } 7505 7506 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN); 7507 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 7508 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 7509 pos = (u8 *) (hdr + 1); 7510 7511 if (qos) { 7512 /* Set highest priority in QoS header */ 7513 pos[0] = 7; 7514 pos[1] = 0; 7515 pos += 2; 7516 } 7517 7518 memcpy(pos, rfc1042_header, sizeof(rfc1042_header)); 7519 pos += sizeof(rfc1042_header); 7520 WPA_PUT_BE16(pos, ETH_P_PAE); 7521 pos += 2; 7522 memcpy(pos, data, data_len); 7523 7524 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0, 7525 0, 0, 0, 0); 7526 if (res < 0) { 7527 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - " 7528 "failed: %d (%s)", 7529 (unsigned long) len, errno, strerror(errno)); 7530 } 7531 os_free(hdr); 7532 7533 return res; 7534} 7535 7536 7537static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr, 7538 int total_flags, 7539 int flags_or, int flags_and) 7540{ 7541 struct i802_bss *bss = priv; 7542 struct wpa_driver_nl80211_data *drv = bss->drv; 7543 struct nl_msg *msg; 7544 struct nlattr *flags; 7545 struct nl80211_sta_flag_update upd; 7546 7547 msg = nlmsg_alloc(); 7548 if (!msg) 7549 return -ENOMEM; 7550 7551 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 7552 7553 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 7554 if_nametoindex(bss->ifname)); 7555 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 7556 7557 /* 7558 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This 7559 * can be removed eventually. 7560 */ 7561 flags = nla_nest_start(msg, NL80211_ATTR_STA_FLAGS); 7562 if (!flags) 7563 goto nla_put_failure; 7564 if (total_flags & WPA_STA_AUTHORIZED) 7565 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_AUTHORIZED); 7566 7567 if (total_flags & WPA_STA_WMM) 7568 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_WME); 7569 7570 if (total_flags & WPA_STA_SHORT_PREAMBLE) 7571 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_SHORT_PREAMBLE); 7572 7573 if (total_flags & WPA_STA_MFP) 7574 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_MFP); 7575 7576 if (total_flags & WPA_STA_TDLS_PEER) 7577 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_TDLS_PEER); 7578 7579 nla_nest_end(msg, flags); 7580 7581 os_memset(&upd, 0, sizeof(upd)); 7582 upd.mask = sta_flags_nl80211(flags_or | ~flags_and); 7583 upd.set = sta_flags_nl80211(flags_or); 7584 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 7585 7586 return send_and_recv_msgs(drv, msg, NULL, NULL); 7587 nla_put_failure: 7588 nlmsg_free(msg); 7589 return -ENOBUFS; 7590} 7591 7592 7593static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv, 7594 struct wpa_driver_associate_params *params) 7595{ 7596 enum nl80211_iftype nlmode, old_mode; 7597 struct hostapd_freq_params freq = { 7598 .freq = params->freq, 7599 }; 7600 7601 if (params->p2p) { 7602 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P " 7603 "group (GO)"); 7604 nlmode = NL80211_IFTYPE_P2P_GO; 7605 } else 7606 nlmode = NL80211_IFTYPE_AP; 7607 7608 old_mode = drv->nlmode; 7609 if (wpa_driver_nl80211_set_mode(&drv->first_bss, nlmode)) { 7610 nl80211_remove_monitor_interface(drv); 7611 return -1; 7612 } 7613 7614 if (wpa_driver_nl80211_set_freq(&drv->first_bss, &freq)) { 7615 if (old_mode != nlmode) 7616 wpa_driver_nl80211_set_mode(&drv->first_bss, old_mode); 7617 nl80211_remove_monitor_interface(drv); 7618 return -1; 7619 } 7620 7621 return 0; 7622} 7623 7624 7625static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv) 7626{ 7627 struct nl_msg *msg; 7628 int ret = -1; 7629 7630 msg = nlmsg_alloc(); 7631 if (!msg) 7632 return -1; 7633 7634 nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS); 7635 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7636 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7637 msg = NULL; 7638 if (ret) { 7639 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d " 7640 "(%s)", ret, strerror(-ret)); 7641 goto nla_put_failure; 7642 } 7643 7644 ret = 0; 7645 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully"); 7646 7647nla_put_failure: 7648 if (wpa_driver_nl80211_set_mode(&drv->first_bss, 7649 NL80211_IFTYPE_STATION)) { 7650 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 7651 "station mode"); 7652 } 7653 7654 nlmsg_free(msg); 7655 return ret; 7656} 7657 7658 7659static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv, 7660 struct wpa_driver_associate_params *params) 7661{ 7662 struct nl_msg *msg; 7663 int ret = -1; 7664 int count = 0; 7665 7666 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex); 7667 7668 if (wpa_driver_nl80211_set_mode(&drv->first_bss, 7669 NL80211_IFTYPE_ADHOC)) { 7670 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 7671 "IBSS mode"); 7672 return -1; 7673 } 7674 7675retry: 7676 msg = nlmsg_alloc(); 7677 if (!msg) 7678 return -1; 7679 7680 nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS); 7681 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7682 7683 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid)) 7684 goto nla_put_failure; 7685 7686 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 7687 params->ssid, params->ssid_len); 7688 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7689 params->ssid); 7690 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 7691 drv->ssid_len = params->ssid_len; 7692 7693 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 7694 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 7695 7696 ret = nl80211_set_conn_keys(params, msg); 7697 if (ret) 7698 goto nla_put_failure; 7699 7700 if (params->bssid && params->fixed_bssid) { 7701 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR, 7702 MAC2STR(params->bssid)); 7703 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 7704 } 7705 7706 if (params->key_mgmt_suite == KEY_MGMT_802_1X || 7707 params->key_mgmt_suite == KEY_MGMT_PSK || 7708 params->key_mgmt_suite == KEY_MGMT_802_1X_SHA256 || 7709 params->key_mgmt_suite == KEY_MGMT_PSK_SHA256) { 7710 wpa_printf(MSG_DEBUG, " * control port"); 7711 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 7712 } 7713 7714 if (params->wpa_ie) { 7715 wpa_hexdump(MSG_DEBUG, 7716 " * Extra IEs for Beacon/Probe Response frames", 7717 params->wpa_ie, params->wpa_ie_len); 7718 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 7719 params->wpa_ie); 7720 } 7721 7722 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7723 msg = NULL; 7724 if (ret) { 7725 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)", 7726 ret, strerror(-ret)); 7727 count++; 7728 if (ret == -EALREADY && count == 1) { 7729 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after " 7730 "forced leave"); 7731 nl80211_leave_ibss(drv); 7732 nlmsg_free(msg); 7733 goto retry; 7734 } 7735 7736 goto nla_put_failure; 7737 } 7738 ret = 0; 7739 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully"); 7740 7741nla_put_failure: 7742 nlmsg_free(msg); 7743 return ret; 7744} 7745 7746 7747static int wpa_driver_nl80211_try_connect( 7748 struct wpa_driver_nl80211_data *drv, 7749 struct wpa_driver_associate_params *params) 7750{ 7751 struct nl_msg *msg; 7752 enum nl80211_auth_type type; 7753 int ret = 0; 7754 int algs; 7755 7756 msg = nlmsg_alloc(); 7757 if (!msg) 7758 return -1; 7759 7760 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex); 7761 nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT); 7762 7763 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7764 if (params->bssid) { 7765 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 7766 MAC2STR(params->bssid)); 7767 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 7768 } 7769 if (params->freq) { 7770 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 7771 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 7772 drv->assoc_freq = params->freq; 7773 } else 7774 drv->assoc_freq = 0; 7775 if (params->bg_scan_period >= 0) { 7776 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 7777 params->bg_scan_period); 7778 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 7779 params->bg_scan_period); 7780 } 7781 if (params->ssid) { 7782 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 7783 params->ssid, params->ssid_len); 7784 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7785 params->ssid); 7786 if (params->ssid_len > sizeof(drv->ssid)) 7787 goto nla_put_failure; 7788 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 7789 drv->ssid_len = params->ssid_len; 7790 } 7791 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 7792 if (params->wpa_ie) 7793 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 7794 params->wpa_ie); 7795 7796 algs = 0; 7797 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 7798 algs++; 7799 if (params->auth_alg & WPA_AUTH_ALG_SHARED) 7800 algs++; 7801 if (params->auth_alg & WPA_AUTH_ALG_LEAP) 7802 algs++; 7803 if (algs > 1) { 7804 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic " 7805 "selection"); 7806 goto skip_auth_type; 7807 } 7808 7809 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 7810 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 7811 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 7812 type = NL80211_AUTHTYPE_SHARED_KEY; 7813 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 7814 type = NL80211_AUTHTYPE_NETWORK_EAP; 7815 else if (params->auth_alg & WPA_AUTH_ALG_FT) 7816 type = NL80211_AUTHTYPE_FT; 7817 else 7818 goto nla_put_failure; 7819 7820 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 7821 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 7822 7823skip_auth_type: 7824 if (params->wpa_proto) { 7825 enum nl80211_wpa_versions ver = 0; 7826 7827 if (params->wpa_proto & WPA_PROTO_WPA) 7828 ver |= NL80211_WPA_VERSION_1; 7829 if (params->wpa_proto & WPA_PROTO_RSN) 7830 ver |= NL80211_WPA_VERSION_2; 7831 7832 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver); 7833 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 7834 } 7835 7836 if (params->pairwise_suite != CIPHER_NONE) { 7837 int cipher; 7838 7839 switch (params->pairwise_suite) { 7840 case CIPHER_SMS4: 7841 cipher = WLAN_CIPHER_SUITE_SMS4; 7842 break; 7843 case CIPHER_WEP40: 7844 cipher = WLAN_CIPHER_SUITE_WEP40; 7845 break; 7846 case CIPHER_WEP104: 7847 cipher = WLAN_CIPHER_SUITE_WEP104; 7848 break; 7849 case CIPHER_CCMP: 7850 cipher = WLAN_CIPHER_SUITE_CCMP; 7851 break; 7852 case CIPHER_GCMP: 7853 cipher = WLAN_CIPHER_SUITE_GCMP; 7854 break; 7855 case CIPHER_TKIP: 7856 default: 7857 cipher = WLAN_CIPHER_SUITE_TKIP; 7858 break; 7859 } 7860 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); 7861 } 7862 7863 if (params->group_suite != CIPHER_NONE) { 7864 int cipher; 7865 7866 switch (params->group_suite) { 7867 case CIPHER_SMS4: 7868 cipher = WLAN_CIPHER_SUITE_SMS4; 7869 break; 7870 case CIPHER_WEP40: 7871 cipher = WLAN_CIPHER_SUITE_WEP40; 7872 break; 7873 case CIPHER_WEP104: 7874 cipher = WLAN_CIPHER_SUITE_WEP104; 7875 break; 7876 case CIPHER_CCMP: 7877 cipher = WLAN_CIPHER_SUITE_CCMP; 7878 break; 7879 case CIPHER_GCMP: 7880 cipher = WLAN_CIPHER_SUITE_GCMP; 7881 break; 7882 case CIPHER_TKIP: 7883 default: 7884 cipher = WLAN_CIPHER_SUITE_TKIP; 7885 break; 7886 } 7887 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); 7888 } 7889 7890 if (params->key_mgmt_suite == KEY_MGMT_802_1X || 7891 params->key_mgmt_suite == KEY_MGMT_PSK || 7892 params->key_mgmt_suite == KEY_MGMT_FT_802_1X || 7893 params->key_mgmt_suite == KEY_MGMT_FT_PSK || 7894 params->key_mgmt_suite == KEY_MGMT_CCKM) { 7895 int mgmt = WLAN_AKM_SUITE_PSK; 7896 7897 switch (params->key_mgmt_suite) { 7898 case KEY_MGMT_CCKM: 7899 mgmt = WLAN_AKM_SUITE_CCKM; 7900 break; 7901 case KEY_MGMT_802_1X: 7902 mgmt = WLAN_AKM_SUITE_8021X; 7903 break; 7904 case KEY_MGMT_FT_802_1X: 7905 mgmt = WLAN_AKM_SUITE_FT_8021X; 7906 break; 7907 case KEY_MGMT_FT_PSK: 7908 mgmt = WLAN_AKM_SUITE_FT_PSK; 7909 break; 7910 case KEY_MGMT_PSK: 7911 default: 7912 mgmt = WLAN_AKM_SUITE_PSK; 7913 break; 7914 } 7915 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt); 7916 } 7917 7918#ifdef CONFIG_IEEE80211W 7919 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) 7920 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); 7921#endif /* CONFIG_IEEE80211W */ 7922 7923 if (params->disable_ht) 7924 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); 7925 7926 if (params->htcaps && params->htcaps_mask) { 7927 int sz = sizeof(struct ieee80211_ht_capabilities); 7928 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); 7929 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 7930 params->htcaps_mask); 7931 } 7932 7933#ifdef CONFIG_VHT_OVERRIDES 7934 if (params->disable_vht) { 7935 wpa_printf(MSG_DEBUG, " * VHT disabled"); 7936 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT); 7937 } 7938 7939 if (params->vhtcaps && params->vhtcaps_mask) { 7940 int sz = sizeof(struct ieee80211_vht_capabilities); 7941 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps); 7942 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 7943 params->vhtcaps_mask); 7944 } 7945#endif /* CONFIG_VHT_OVERRIDES */ 7946 7947 ret = nl80211_set_conn_keys(params, msg); 7948 if (ret) 7949 goto nla_put_failure; 7950 7951 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7952 msg = NULL; 7953 if (ret) { 7954 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d " 7955 "(%s)", ret, strerror(-ret)); 7956 goto nla_put_failure; 7957 } 7958 ret = 0; 7959 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully"); 7960 7961nla_put_failure: 7962 nlmsg_free(msg); 7963 return ret; 7964 7965} 7966 7967 7968static int wpa_driver_nl80211_connect( 7969 struct wpa_driver_nl80211_data *drv, 7970 struct wpa_driver_associate_params *params) 7971{ 7972 int ret = wpa_driver_nl80211_try_connect(drv, params); 7973 if (ret == -EALREADY) { 7974 /* 7975 * cfg80211 does not currently accept new connections if 7976 * we are already connected. As a workaround, force 7977 * disconnection and try again. 7978 */ 7979 wpa_printf(MSG_DEBUG, "nl80211: Explicitly " 7980 "disconnecting before reassociation " 7981 "attempt"); 7982 if (wpa_driver_nl80211_disconnect( 7983 drv, WLAN_REASON_PREV_AUTH_NOT_VALID)) 7984 return -1; 7985 ret = wpa_driver_nl80211_try_connect(drv, params); 7986 } 7987 return ret; 7988} 7989 7990 7991static int wpa_driver_nl80211_associate( 7992 void *priv, struct wpa_driver_associate_params *params) 7993{ 7994 struct i802_bss *bss = priv; 7995 struct wpa_driver_nl80211_data *drv = bss->drv; 7996 int ret = -1; 7997 struct nl_msg *msg; 7998 7999 if (params->mode == IEEE80211_MODE_AP) 8000 return wpa_driver_nl80211_ap(drv, params); 8001 8002 if (params->mode == IEEE80211_MODE_IBSS) 8003 return wpa_driver_nl80211_ibss(drv, params); 8004 8005 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) { 8006 enum nl80211_iftype nlmode = params->p2p ? 8007 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 8008 8009 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0) 8010 return -1; 8011 return wpa_driver_nl80211_connect(drv, params); 8012 } 8013 8014 nl80211_mark_disconnected(drv); 8015 8016 msg = nlmsg_alloc(); 8017 if (!msg) 8018 return -1; 8019 8020 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)", 8021 drv->ifindex); 8022 nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE); 8023 8024 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8025 if (params->bssid) { 8026 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 8027 MAC2STR(params->bssid)); 8028 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 8029 } 8030 if (params->freq) { 8031 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 8032 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 8033 drv->assoc_freq = params->freq; 8034 } else 8035 drv->assoc_freq = 0; 8036 if (params->bg_scan_period >= 0) { 8037 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 8038 params->bg_scan_period); 8039 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 8040 params->bg_scan_period); 8041 } 8042 if (params->ssid) { 8043 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 8044 params->ssid, params->ssid_len); 8045 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 8046 params->ssid); 8047 if (params->ssid_len > sizeof(drv->ssid)) 8048 goto nla_put_failure; 8049 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 8050 drv->ssid_len = params->ssid_len; 8051 } 8052 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 8053 if (params->wpa_ie) 8054 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 8055 params->wpa_ie); 8056 8057 if (params->pairwise_suite != CIPHER_NONE) { 8058 int cipher; 8059 8060 switch (params->pairwise_suite) { 8061 case CIPHER_WEP40: 8062 cipher = WLAN_CIPHER_SUITE_WEP40; 8063 break; 8064 case CIPHER_WEP104: 8065 cipher = WLAN_CIPHER_SUITE_WEP104; 8066 break; 8067 case CIPHER_CCMP: 8068 cipher = WLAN_CIPHER_SUITE_CCMP; 8069 break; 8070 case CIPHER_GCMP: 8071 cipher = WLAN_CIPHER_SUITE_GCMP; 8072 break; 8073 case CIPHER_TKIP: 8074 default: 8075 cipher = WLAN_CIPHER_SUITE_TKIP; 8076 break; 8077 } 8078 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher); 8079 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); 8080 } 8081 8082 if (params->group_suite != CIPHER_NONE) { 8083 int cipher; 8084 8085 switch (params->group_suite) { 8086 case CIPHER_WEP40: 8087 cipher = WLAN_CIPHER_SUITE_WEP40; 8088 break; 8089 case CIPHER_WEP104: 8090 cipher = WLAN_CIPHER_SUITE_WEP104; 8091 break; 8092 case CIPHER_CCMP: 8093 cipher = WLAN_CIPHER_SUITE_CCMP; 8094 break; 8095 case CIPHER_GCMP: 8096 cipher = WLAN_CIPHER_SUITE_GCMP; 8097 break; 8098 case CIPHER_TKIP: 8099 default: 8100 cipher = WLAN_CIPHER_SUITE_TKIP; 8101 break; 8102 } 8103 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher); 8104 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); 8105 } 8106 8107#ifdef CONFIG_IEEE80211W 8108 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) 8109 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); 8110#endif /* CONFIG_IEEE80211W */ 8111 8112 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 8113 8114 if (params->prev_bssid) { 8115 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR, 8116 MAC2STR(params->prev_bssid)); 8117 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN, 8118 params->prev_bssid); 8119 } 8120 8121 if (params->disable_ht) 8122 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); 8123 8124 if (params->htcaps && params->htcaps_mask) { 8125 int sz = sizeof(struct ieee80211_ht_capabilities); 8126 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); 8127 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 8128 params->htcaps_mask); 8129 } 8130 8131#ifdef CONFIG_VHT_OVERRIDES 8132 if (params->disable_vht) { 8133 wpa_printf(MSG_DEBUG, " * VHT disabled"); 8134 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT); 8135 } 8136 8137 if (params->vhtcaps && params->vhtcaps_mask) { 8138 int sz = sizeof(struct ieee80211_vht_capabilities); 8139 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps); 8140 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 8141 params->vhtcaps_mask); 8142 } 8143#endif /* CONFIG_VHT_OVERRIDES */ 8144 8145 if (params->p2p) 8146 wpa_printf(MSG_DEBUG, " * P2P group"); 8147 8148 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8149 msg = NULL; 8150 if (ret) { 8151 wpa_dbg(drv->ctx, MSG_DEBUG, 8152 "nl80211: MLME command failed (assoc): ret=%d (%s)", 8153 ret, strerror(-ret)); 8154 nl80211_dump_scan(drv); 8155 goto nla_put_failure; 8156 } 8157 ret = 0; 8158 wpa_printf(MSG_DEBUG, "nl80211: Association request send " 8159 "successfully"); 8160 8161nla_put_failure: 8162 nlmsg_free(msg); 8163 return ret; 8164} 8165 8166 8167static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv, 8168 int ifindex, enum nl80211_iftype mode) 8169{ 8170 struct nl_msg *msg; 8171 int ret = -ENOBUFS; 8172 8173 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)", 8174 ifindex, mode, nl80211_iftype_str(mode)); 8175 8176 msg = nlmsg_alloc(); 8177 if (!msg) 8178 return -ENOMEM; 8179 8180 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE); 8181 if (nl80211_set_iface_id(msg, &drv->first_bss) < 0) 8182 goto nla_put_failure; 8183 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode); 8184 8185 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8186 msg = NULL; 8187 if (!ret) 8188 return 0; 8189nla_put_failure: 8190 nlmsg_free(msg); 8191 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:" 8192 " %d (%s)", ifindex, mode, ret, strerror(-ret)); 8193 return ret; 8194} 8195 8196 8197static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 8198 enum nl80211_iftype nlmode) 8199{ 8200 struct wpa_driver_nl80211_data *drv = bss->drv; 8201 int ret = -1; 8202 int i; 8203 int was_ap = is_ap_interface(drv->nlmode); 8204 int res; 8205 8206 res = nl80211_set_mode(drv, drv->ifindex, nlmode); 8207 if (res && nlmode == nl80211_get_ifmode(bss)) 8208 res = 0; 8209 8210 if (res == 0) { 8211 drv->nlmode = nlmode; 8212 ret = 0; 8213 goto done; 8214 } 8215 8216 if (res == -ENODEV) 8217 return -1; 8218 8219 if (nlmode == drv->nlmode) { 8220 wpa_printf(MSG_DEBUG, "nl80211: Interface already in " 8221 "requested mode - ignore error"); 8222 ret = 0; 8223 goto done; /* Already in the requested mode */ 8224 } 8225 8226 /* mac80211 doesn't allow mode changes while the device is up, so 8227 * take the device down, try to set the mode again, and bring the 8228 * device back up. 8229 */ 8230 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting " 8231 "interface down"); 8232 for (i = 0; i < 10; i++) { 8233 res = i802_set_iface_flags(bss, 0); 8234 if (res == -EACCES || res == -ENODEV) 8235 break; 8236 if (res == 0) { 8237 /* Try to set the mode again while the interface is 8238 * down */ 8239 ret = nl80211_set_mode(drv, drv->ifindex, nlmode); 8240 if (ret == -EACCES) 8241 break; 8242 res = i802_set_iface_flags(bss, 1); 8243 if (res && !ret) 8244 ret = -1; 8245 else if (ret != -EBUSY) 8246 break; 8247 } else 8248 wpa_printf(MSG_DEBUG, "nl80211: Failed to set " 8249 "interface down"); 8250 os_sleep(0, 100000); 8251 } 8252 8253 if (!ret) { 8254 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while " 8255 "interface is down"); 8256 drv->nlmode = nlmode; 8257 drv->ignore_if_down_event = 1; 8258 } 8259 8260done: 8261 if (ret) { 8262 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d " 8263 "from %d failed", nlmode, drv->nlmode); 8264 return ret; 8265 } 8266 8267 if (is_p2p_net_interface(nlmode)) 8268 nl80211_disable_11b_rates(drv, drv->ifindex, 1); 8269 else if (drv->disabled_11b_rates) 8270 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 8271 8272 if (is_ap_interface(nlmode)) { 8273 nl80211_mgmt_unsubscribe(bss, "start AP"); 8274 /* Setup additional AP mode functionality if needed */ 8275 if (nl80211_setup_ap(bss)) 8276 return -1; 8277 } else if (was_ap) { 8278 /* Remove additional AP mode functionality */ 8279 nl80211_teardown_ap(bss); 8280 } else { 8281 nl80211_mgmt_unsubscribe(bss, "mode change"); 8282 } 8283 8284 if (!bss->in_deinit && !is_ap_interface(nlmode) && 8285 nl80211_mgmt_subscribe_non_ap(bss) < 0) 8286 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action " 8287 "frame processing - ignore for now"); 8288 8289 return 0; 8290} 8291 8292 8293static int wpa_driver_nl80211_get_capa(void *priv, 8294 struct wpa_driver_capa *capa) 8295{ 8296 struct i802_bss *bss = priv; 8297 struct wpa_driver_nl80211_data *drv = bss->drv; 8298 if (!drv->has_capability) 8299 return -1; 8300 os_memcpy(capa, &drv->capa, sizeof(*capa)); 8301 if (drv->extended_capa && drv->extended_capa_mask) { 8302 capa->extended_capa = drv->extended_capa; 8303 capa->extended_capa_mask = drv->extended_capa_mask; 8304 capa->extended_capa_len = drv->extended_capa_len; 8305 } 8306 8307 if ((capa->flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) && 8308 !drv->allow_p2p_device) { 8309 wpa_printf(MSG_DEBUG, "nl80211: Do not indicate P2P_DEVICE support (p2p_device=1 driver param not specified)"); 8310 capa->flags &= ~WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 8311 } 8312 8313 return 0; 8314} 8315 8316 8317static int wpa_driver_nl80211_set_operstate(void *priv, int state) 8318{ 8319 struct i802_bss *bss = priv; 8320 struct wpa_driver_nl80211_data *drv = bss->drv; 8321 8322 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)", 8323 __func__, drv->operstate, state, state ? "UP" : "DORMANT"); 8324 drv->operstate = state; 8325 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1, 8326 state ? IF_OPER_UP : IF_OPER_DORMANT); 8327} 8328 8329 8330static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized) 8331{ 8332 struct i802_bss *bss = priv; 8333 struct wpa_driver_nl80211_data *drv = bss->drv; 8334 struct nl_msg *msg; 8335 struct nl80211_sta_flag_update upd; 8336 8337 wpa_printf(MSG_DEBUG, "nl80211: Set supplicant port %sauthorized for " 8338 MACSTR, authorized ? "" : "un", MAC2STR(drv->bssid)); 8339 8340 msg = nlmsg_alloc(); 8341 if (!msg) 8342 return -ENOMEM; 8343 8344 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8345 8346 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8347 if_nametoindex(bss->ifname)); 8348 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 8349 8350 os_memset(&upd, 0, sizeof(upd)); 8351 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED); 8352 if (authorized) 8353 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED); 8354 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 8355 8356 return send_and_recv_msgs(drv, msg, NULL, NULL); 8357 nla_put_failure: 8358 nlmsg_free(msg); 8359 return -ENOBUFS; 8360} 8361 8362 8363/* Set kernel driver on given frequency (MHz) */ 8364static int i802_set_freq(void *priv, struct hostapd_freq_params *freq) 8365{ 8366 struct i802_bss *bss = priv; 8367 return wpa_driver_nl80211_set_freq(bss, freq); 8368} 8369 8370 8371#if defined(HOSTAPD) || defined(CONFIG_AP) 8372 8373static inline int min_int(int a, int b) 8374{ 8375 if (a < b) 8376 return a; 8377 return b; 8378} 8379 8380 8381static int get_key_handler(struct nl_msg *msg, void *arg) 8382{ 8383 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 8384 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 8385 8386 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 8387 genlmsg_attrlen(gnlh, 0), NULL); 8388 8389 /* 8390 * TODO: validate the key index and mac address! 8391 * Otherwise, there's a race condition as soon as 8392 * the kernel starts sending key notifications. 8393 */ 8394 8395 if (tb[NL80211_ATTR_KEY_SEQ]) 8396 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]), 8397 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6)); 8398 return NL_SKIP; 8399} 8400 8401 8402static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr, 8403 int idx, u8 *seq) 8404{ 8405 struct i802_bss *bss = priv; 8406 struct wpa_driver_nl80211_data *drv = bss->drv; 8407 struct nl_msg *msg; 8408 8409 msg = nlmsg_alloc(); 8410 if (!msg) 8411 return -ENOMEM; 8412 8413 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY); 8414 8415 if (addr) 8416 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8417 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx); 8418 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface)); 8419 8420 memset(seq, 0, 6); 8421 8422 return send_and_recv_msgs(drv, msg, get_key_handler, seq); 8423 nla_put_failure: 8424 nlmsg_free(msg); 8425 return -ENOBUFS; 8426} 8427 8428 8429static int i802_set_rts(void *priv, int rts) 8430{ 8431 struct i802_bss *bss = priv; 8432 struct wpa_driver_nl80211_data *drv = bss->drv; 8433 struct nl_msg *msg; 8434 int ret = -ENOBUFS; 8435 u32 val; 8436 8437 msg = nlmsg_alloc(); 8438 if (!msg) 8439 return -ENOMEM; 8440 8441 if (rts >= 2347) 8442 val = (u32) -1; 8443 else 8444 val = rts; 8445 8446 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8447 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8448 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val); 8449 8450 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8451 msg = NULL; 8452 if (!ret) 8453 return 0; 8454nla_put_failure: 8455 nlmsg_free(msg); 8456 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: " 8457 "%d (%s)", rts, ret, strerror(-ret)); 8458 return ret; 8459} 8460 8461 8462static int i802_set_frag(void *priv, int frag) 8463{ 8464 struct i802_bss *bss = priv; 8465 struct wpa_driver_nl80211_data *drv = bss->drv; 8466 struct nl_msg *msg; 8467 int ret = -ENOBUFS; 8468 u32 val; 8469 8470 msg = nlmsg_alloc(); 8471 if (!msg) 8472 return -ENOMEM; 8473 8474 if (frag >= 2346) 8475 val = (u32) -1; 8476 else 8477 val = frag; 8478 8479 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8480 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8481 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val); 8482 8483 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8484 msg = NULL; 8485 if (!ret) 8486 return 0; 8487nla_put_failure: 8488 nlmsg_free(msg); 8489 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold " 8490 "%d: %d (%s)", frag, ret, strerror(-ret)); 8491 return ret; 8492} 8493 8494 8495static int i802_flush(void *priv) 8496{ 8497 struct i802_bss *bss = priv; 8498 struct wpa_driver_nl80211_data *drv = bss->drv; 8499 struct nl_msg *msg; 8500 int res; 8501 8502 msg = nlmsg_alloc(); 8503 if (!msg) 8504 return -1; 8505 8506 wpa_printf(MSG_DEBUG, "nl80211: flush -> DEL_STATION %s (all)", 8507 bss->ifname); 8508 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 8509 8510 /* 8511 * XXX: FIX! this needs to flush all VLANs too 8512 */ 8513 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8514 if_nametoindex(bss->ifname)); 8515 8516 res = send_and_recv_msgs(drv, msg, NULL, NULL); 8517 if (res) { 8518 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d " 8519 "(%s)", res, strerror(-res)); 8520 } 8521 return res; 8522 nla_put_failure: 8523 nlmsg_free(msg); 8524 return -ENOBUFS; 8525} 8526 8527#endif /* HOSTAPD || CONFIG_AP */ 8528 8529 8530static int get_sta_handler(struct nl_msg *msg, void *arg) 8531{ 8532 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 8533 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 8534 struct hostap_sta_driver_data *data = arg; 8535 struct nlattr *stats[NL80211_STA_INFO_MAX + 1]; 8536 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = { 8537 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 }, 8538 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 }, 8539 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 }, 8540 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 }, 8541 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 }, 8542 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 }, 8543 }; 8544 8545 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 8546 genlmsg_attrlen(gnlh, 0), NULL); 8547 8548 /* 8549 * TODO: validate the interface and mac address! 8550 * Otherwise, there's a race condition as soon as 8551 * the kernel starts sending station notifications. 8552 */ 8553 8554 if (!tb[NL80211_ATTR_STA_INFO]) { 8555 wpa_printf(MSG_DEBUG, "sta stats missing!"); 8556 return NL_SKIP; 8557 } 8558 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX, 8559 tb[NL80211_ATTR_STA_INFO], 8560 stats_policy)) { 8561 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!"); 8562 return NL_SKIP; 8563 } 8564 8565 if (stats[NL80211_STA_INFO_INACTIVE_TIME]) 8566 data->inactive_msec = 8567 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]); 8568 if (stats[NL80211_STA_INFO_RX_BYTES]) 8569 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]); 8570 if (stats[NL80211_STA_INFO_TX_BYTES]) 8571 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]); 8572 if (stats[NL80211_STA_INFO_RX_PACKETS]) 8573 data->rx_packets = 8574 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]); 8575 if (stats[NL80211_STA_INFO_TX_PACKETS]) 8576 data->tx_packets = 8577 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]); 8578 if (stats[NL80211_STA_INFO_TX_FAILED]) 8579 data->tx_retry_failed = 8580 nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]); 8581 8582 return NL_SKIP; 8583} 8584 8585static int i802_read_sta_data(struct i802_bss *bss, 8586 struct hostap_sta_driver_data *data, 8587 const u8 *addr) 8588{ 8589 struct wpa_driver_nl80211_data *drv = bss->drv; 8590 struct nl_msg *msg; 8591 8592 os_memset(data, 0, sizeof(*data)); 8593 msg = nlmsg_alloc(); 8594 if (!msg) 8595 return -ENOMEM; 8596 8597 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 8598 8599 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8600 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 8601 8602 return send_and_recv_msgs(drv, msg, get_sta_handler, data); 8603 nla_put_failure: 8604 nlmsg_free(msg); 8605 return -ENOBUFS; 8606} 8607 8608 8609#if defined(HOSTAPD) || defined(CONFIG_AP) 8610 8611static int i802_set_tx_queue_params(void *priv, int queue, int aifs, 8612 int cw_min, int cw_max, int burst_time) 8613{ 8614 struct i802_bss *bss = priv; 8615 struct wpa_driver_nl80211_data *drv = bss->drv; 8616 struct nl_msg *msg; 8617 struct nlattr *txq, *params; 8618 8619 msg = nlmsg_alloc(); 8620 if (!msg) 8621 return -1; 8622 8623 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8624 8625 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 8626 8627 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS); 8628 if (!txq) 8629 goto nla_put_failure; 8630 8631 /* We are only sending parameters for a single TXQ at a time */ 8632 params = nla_nest_start(msg, 1); 8633 if (!params) 8634 goto nla_put_failure; 8635 8636 switch (queue) { 8637 case 0: 8638 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO); 8639 break; 8640 case 1: 8641 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI); 8642 break; 8643 case 2: 8644 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE); 8645 break; 8646 case 3: 8647 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK); 8648 break; 8649 } 8650 /* Burst time is configured in units of 0.1 msec and TXOP parameter in 8651 * 32 usec, so need to convert the value here. */ 8652 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32); 8653 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min); 8654 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max); 8655 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs); 8656 8657 nla_nest_end(msg, params); 8658 8659 nla_nest_end(msg, txq); 8660 8661 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 8662 return 0; 8663 msg = NULL; 8664 nla_put_failure: 8665 nlmsg_free(msg); 8666 return -1; 8667} 8668 8669 8670static int i802_set_sta_vlan(struct i802_bss *bss, const u8 *addr, 8671 const char *ifname, int vlan_id) 8672{ 8673 struct wpa_driver_nl80211_data *drv = bss->drv; 8674 struct nl_msg *msg; 8675 int ret = -ENOBUFS; 8676 8677 msg = nlmsg_alloc(); 8678 if (!msg) 8679 return -ENOMEM; 8680 8681 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8682 8683 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8684 if_nametoindex(bss->ifname)); 8685 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8686 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN, 8687 if_nametoindex(ifname)); 8688 8689 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8690 msg = NULL; 8691 if (ret < 0) { 8692 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr=" 8693 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)", 8694 MAC2STR(addr), ifname, vlan_id, ret, 8695 strerror(-ret)); 8696 } 8697 nla_put_failure: 8698 nlmsg_free(msg); 8699 return ret; 8700} 8701 8702 8703static int i802_get_inact_sec(void *priv, const u8 *addr) 8704{ 8705 struct hostap_sta_driver_data data; 8706 int ret; 8707 8708 data.inactive_msec = (unsigned long) -1; 8709 ret = i802_read_sta_data(priv, &data, addr); 8710 if (ret || data.inactive_msec == (unsigned long) -1) 8711 return -1; 8712 return data.inactive_msec / 1000; 8713} 8714 8715 8716static int i802_sta_clear_stats(void *priv, const u8 *addr) 8717{ 8718#if 0 8719 /* TODO */ 8720#endif 8721 return 0; 8722} 8723 8724 8725static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, 8726 int reason) 8727{ 8728 struct i802_bss *bss = priv; 8729 struct wpa_driver_nl80211_data *drv = bss->drv; 8730 struct ieee80211_mgmt mgmt; 8731 8732 if (drv->device_ap_sme) 8733 return wpa_driver_nl80211_sta_remove(bss, addr); 8734 8735 memset(&mgmt, 0, sizeof(mgmt)); 8736 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 8737 WLAN_FC_STYPE_DEAUTH); 8738 memcpy(mgmt.da, addr, ETH_ALEN); 8739 memcpy(mgmt.sa, own_addr, ETH_ALEN); 8740 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 8741 mgmt.u.deauth.reason_code = host_to_le16(reason); 8742 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 8743 IEEE80211_HDRLEN + 8744 sizeof(mgmt.u.deauth), 0, 0, 0, 0, 8745 0); 8746} 8747 8748 8749static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr, 8750 int reason) 8751{ 8752 struct i802_bss *bss = priv; 8753 struct wpa_driver_nl80211_data *drv = bss->drv; 8754 struct ieee80211_mgmt mgmt; 8755 8756 if (drv->device_ap_sme) 8757 return wpa_driver_nl80211_sta_remove(bss, addr); 8758 8759 memset(&mgmt, 0, sizeof(mgmt)); 8760 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 8761 WLAN_FC_STYPE_DISASSOC); 8762 memcpy(mgmt.da, addr, ETH_ALEN); 8763 memcpy(mgmt.sa, own_addr, ETH_ALEN); 8764 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 8765 mgmt.u.disassoc.reason_code = host_to_le16(reason); 8766 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 8767 IEEE80211_HDRLEN + 8768 sizeof(mgmt.u.disassoc), 0, 0, 0, 0, 8769 0); 8770} 8771 8772#endif /* HOSTAPD || CONFIG_AP */ 8773 8774#ifdef HOSTAPD 8775 8776static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 8777{ 8778 int i; 8779 int *old; 8780 8781 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d", 8782 ifidx); 8783 for (i = 0; i < drv->num_if_indices; i++) { 8784 if (drv->if_indices[i] == 0) { 8785 drv->if_indices[i] = ifidx; 8786 return; 8787 } 8788 } 8789 8790 if (drv->if_indices != drv->default_if_indices) 8791 old = drv->if_indices; 8792 else 8793 old = NULL; 8794 8795 drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1, 8796 sizeof(int)); 8797 if (!drv->if_indices) { 8798 if (!old) 8799 drv->if_indices = drv->default_if_indices; 8800 else 8801 drv->if_indices = old; 8802 wpa_printf(MSG_ERROR, "Failed to reallocate memory for " 8803 "interfaces"); 8804 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx); 8805 return; 8806 } else if (!old) 8807 os_memcpy(drv->if_indices, drv->default_if_indices, 8808 sizeof(drv->default_if_indices)); 8809 drv->if_indices[drv->num_if_indices] = ifidx; 8810 drv->num_if_indices++; 8811} 8812 8813 8814static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 8815{ 8816 int i; 8817 8818 for (i = 0; i < drv->num_if_indices; i++) { 8819 if (drv->if_indices[i] == ifidx) { 8820 drv->if_indices[i] = 0; 8821 break; 8822 } 8823 } 8824} 8825 8826 8827static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 8828{ 8829 int i; 8830 8831 for (i = 0; i < drv->num_if_indices; i++) 8832 if (drv->if_indices[i] == ifidx) 8833 return 1; 8834 8835 return 0; 8836} 8837 8838 8839static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val, 8840 const char *bridge_ifname, char *ifname_wds) 8841{ 8842 struct i802_bss *bss = priv; 8843 struct wpa_driver_nl80211_data *drv = bss->drv; 8844 char name[IFNAMSIZ + 1]; 8845 8846 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid); 8847 if (ifname_wds) 8848 os_strlcpy(ifname_wds, name, IFNAMSIZ + 1); 8849 8850 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR 8851 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name); 8852 if (val) { 8853 if (!if_nametoindex(name)) { 8854 if (nl80211_create_iface(drv, name, 8855 NL80211_IFTYPE_AP_VLAN, 8856 bss->addr, 1, NULL, NULL) < 0) 8857 return -1; 8858 if (bridge_ifname && 8859 linux_br_add_if(drv->global->ioctl_sock, 8860 bridge_ifname, name) < 0) 8861 return -1; 8862 } 8863 if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) { 8864 wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA " 8865 "interface %s up", name); 8866 } 8867 return i802_set_sta_vlan(priv, addr, name, 0); 8868 } else { 8869 if (bridge_ifname) 8870 linux_br_del_if(drv->global->ioctl_sock, bridge_ifname, 8871 name); 8872 8873 i802_set_sta_vlan(priv, addr, bss->ifname, 0); 8874 return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN, 8875 name); 8876 } 8877} 8878 8879 8880static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx) 8881{ 8882 struct wpa_driver_nl80211_data *drv = eloop_ctx; 8883 struct sockaddr_ll lladdr; 8884 unsigned char buf[3000]; 8885 int len; 8886 socklen_t fromlen = sizeof(lladdr); 8887 8888 len = recvfrom(sock, buf, sizeof(buf), 0, 8889 (struct sockaddr *)&lladdr, &fromlen); 8890 if (len < 0) { 8891 perror("recv"); 8892 return; 8893 } 8894 8895 if (have_ifidx(drv, lladdr.sll_ifindex)) 8896 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len); 8897} 8898 8899 8900static int i802_check_bridge(struct wpa_driver_nl80211_data *drv, 8901 struct i802_bss *bss, 8902 const char *brname, const char *ifname) 8903{ 8904 int ifindex; 8905 char in_br[IFNAMSIZ]; 8906 8907 os_strlcpy(bss->brname, brname, IFNAMSIZ); 8908 ifindex = if_nametoindex(brname); 8909 if (ifindex == 0) { 8910 /* 8911 * Bridge was configured, but the bridge device does 8912 * not exist. Try to add it now. 8913 */ 8914 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) { 8915 wpa_printf(MSG_ERROR, "nl80211: Failed to add the " 8916 "bridge interface %s: %s", 8917 brname, strerror(errno)); 8918 return -1; 8919 } 8920 bss->added_bridge = 1; 8921 add_ifidx(drv, if_nametoindex(brname)); 8922 } 8923 8924 if (linux_br_get(in_br, ifname) == 0) { 8925 if (os_strcmp(in_br, brname) == 0) 8926 return 0; /* already in the bridge */ 8927 8928 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from " 8929 "bridge %s", ifname, in_br); 8930 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) < 8931 0) { 8932 wpa_printf(MSG_ERROR, "nl80211: Failed to " 8933 "remove interface %s from bridge " 8934 "%s: %s", 8935 ifname, brname, strerror(errno)); 8936 return -1; 8937 } 8938 } 8939 8940 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s", 8941 ifname, brname); 8942 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) { 8943 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s " 8944 "into bridge %s: %s", 8945 ifname, brname, strerror(errno)); 8946 return -1; 8947 } 8948 bss->added_if_into_bridge = 1; 8949 8950 return 0; 8951} 8952 8953 8954static void *i802_init(struct hostapd_data *hapd, 8955 struct wpa_init_params *params) 8956{ 8957 struct wpa_driver_nl80211_data *drv; 8958 struct i802_bss *bss; 8959 size_t i; 8960 char brname[IFNAMSIZ]; 8961 int ifindex, br_ifindex; 8962 int br_added = 0; 8963 8964 bss = wpa_driver_nl80211_init(hapd, params->ifname, 8965 params->global_priv); 8966 if (bss == NULL) 8967 return NULL; 8968 8969 drv = bss->drv; 8970 drv->nlmode = NL80211_IFTYPE_AP; 8971 drv->eapol_sock = -1; 8972 8973 if (linux_br_get(brname, params->ifname) == 0) { 8974 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s", 8975 params->ifname, brname); 8976 br_ifindex = if_nametoindex(brname); 8977 } else { 8978 brname[0] = '\0'; 8979 br_ifindex = 0; 8980 } 8981 8982 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int); 8983 drv->if_indices = drv->default_if_indices; 8984 for (i = 0; i < params->num_bridge; i++) { 8985 if (params->bridge[i]) { 8986 ifindex = if_nametoindex(params->bridge[i]); 8987 if (ifindex) 8988 add_ifidx(drv, ifindex); 8989 if (ifindex == br_ifindex) 8990 br_added = 1; 8991 } 8992 } 8993 if (!br_added && br_ifindex && 8994 (params->num_bridge == 0 || !params->bridge[0])) 8995 add_ifidx(drv, br_ifindex); 8996 8997 /* start listening for EAPOL on the default AP interface */ 8998 add_ifidx(drv, drv->ifindex); 8999 9000 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0)) 9001 goto failed; 9002 9003 if (params->bssid) { 9004 if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 9005 params->bssid)) 9006 goto failed; 9007 } 9008 9009 if (wpa_driver_nl80211_set_mode(bss, drv->nlmode)) { 9010 wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s " 9011 "into AP mode", bss->ifname); 9012 goto failed; 9013 } 9014 9015 if (params->num_bridge && params->bridge[0] && 9016 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0) 9017 goto failed; 9018 9019 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) 9020 goto failed; 9021 9022 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE)); 9023 if (drv->eapol_sock < 0) { 9024 perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)"); 9025 goto failed; 9026 } 9027 9028 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL)) 9029 { 9030 printf("Could not register read socket for eapol\n"); 9031 goto failed; 9032 } 9033 9034 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 9035 params->own_addr)) 9036 goto failed; 9037 9038 memcpy(bss->addr, params->own_addr, ETH_ALEN); 9039 9040 return bss; 9041 9042failed: 9043 wpa_driver_nl80211_deinit(bss); 9044 return NULL; 9045} 9046 9047 9048static void i802_deinit(void *priv) 9049{ 9050 struct i802_bss *bss = priv; 9051 wpa_driver_nl80211_deinit(bss); 9052} 9053 9054#endif /* HOSTAPD */ 9055 9056 9057static enum nl80211_iftype wpa_driver_nl80211_if_type( 9058 enum wpa_driver_if_type type) 9059{ 9060 switch (type) { 9061 case WPA_IF_STATION: 9062 return NL80211_IFTYPE_STATION; 9063 case WPA_IF_P2P_CLIENT: 9064 case WPA_IF_P2P_GROUP: 9065 return NL80211_IFTYPE_P2P_CLIENT; 9066 case WPA_IF_AP_VLAN: 9067 return NL80211_IFTYPE_AP_VLAN; 9068 case WPA_IF_AP_BSS: 9069 return NL80211_IFTYPE_AP; 9070 case WPA_IF_P2P_GO: 9071 return NL80211_IFTYPE_P2P_GO; 9072 case WPA_IF_P2P_DEVICE: 9073 return NL80211_IFTYPE_P2P_DEVICE; 9074 } 9075 return -1; 9076} 9077 9078 9079#ifdef CONFIG_P2P 9080 9081static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr) 9082{ 9083 struct wpa_driver_nl80211_data *drv; 9084 dl_list_for_each(drv, &global->interfaces, 9085 struct wpa_driver_nl80211_data, list) { 9086 if (os_memcmp(addr, drv->first_bss.addr, ETH_ALEN) == 0) 9087 return 1; 9088 } 9089 return 0; 9090} 9091 9092 9093static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv, 9094 u8 *new_addr) 9095{ 9096 unsigned int idx; 9097 9098 if (!drv->global) 9099 return -1; 9100 9101 os_memcpy(new_addr, drv->first_bss.addr, ETH_ALEN); 9102 for (idx = 0; idx < 64; idx++) { 9103 new_addr[0] = drv->first_bss.addr[0] | 0x02; 9104 new_addr[0] ^= idx << 2; 9105 if (!nl80211_addr_in_use(drv->global, new_addr)) 9106 break; 9107 } 9108 if (idx == 64) 9109 return -1; 9110 9111 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address " 9112 MACSTR, MAC2STR(new_addr)); 9113 9114 return 0; 9115} 9116 9117#endif /* CONFIG_P2P */ 9118 9119 9120struct wdev_info { 9121 u64 wdev_id; 9122 int wdev_id_set; 9123 u8 macaddr[ETH_ALEN]; 9124}; 9125 9126static int nl80211_wdev_handler(struct nl_msg *msg, void *arg) 9127{ 9128 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9129 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9130 struct wdev_info *wi = arg; 9131 9132 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9133 genlmsg_attrlen(gnlh, 0), NULL); 9134 if (tb[NL80211_ATTR_WDEV]) { 9135 wi->wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 9136 wi->wdev_id_set = 1; 9137 } 9138 9139 if (tb[NL80211_ATTR_MAC]) 9140 os_memcpy(wi->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 9141 ETH_ALEN); 9142 9143 return NL_SKIP; 9144} 9145 9146 9147static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type, 9148 const char *ifname, const u8 *addr, 9149 void *bss_ctx, void **drv_priv, 9150 char *force_ifname, u8 *if_addr, 9151 const char *bridge) 9152{ 9153 enum nl80211_iftype nlmode; 9154 struct i802_bss *bss = priv; 9155 struct wpa_driver_nl80211_data *drv = bss->drv; 9156 int ifidx; 9157#ifdef HOSTAPD 9158 struct i802_bss *new_bss = NULL; 9159 9160 if (type == WPA_IF_AP_BSS) { 9161 new_bss = os_zalloc(sizeof(*new_bss)); 9162 if (new_bss == NULL) 9163 return -1; 9164 } 9165#endif /* HOSTAPD */ 9166 9167 if (addr) 9168 os_memcpy(if_addr, addr, ETH_ALEN); 9169 nlmode = wpa_driver_nl80211_if_type(type); 9170 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { 9171 struct wdev_info p2pdev_info; 9172 9173 os_memset(&p2pdev_info, 0, sizeof(p2pdev_info)); 9174 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 9175 0, nl80211_wdev_handler, 9176 &p2pdev_info); 9177 if (!p2pdev_info.wdev_id_set || ifidx != 0) { 9178 wpa_printf(MSG_ERROR, "nl80211: Failed to create a P2P Device interface %s", 9179 ifname); 9180 return -1; 9181 } 9182 9183 drv->global->if_add_wdevid = p2pdev_info.wdev_id; 9184 drv->global->if_add_wdevid_set = p2pdev_info.wdev_id_set; 9185 if (!is_zero_ether_addr(p2pdev_info.macaddr)) 9186 os_memcpy(if_addr, p2pdev_info.macaddr, ETH_ALEN); 9187 wpa_printf(MSG_DEBUG, "nl80211: New P2P Device interface %s (0x%llx) created", 9188 ifname, 9189 (long long unsigned int) p2pdev_info.wdev_id); 9190 } else { 9191 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 9192 0, NULL, NULL); 9193 if (ifidx < 0) { 9194#ifdef HOSTAPD 9195 os_free(new_bss); 9196#endif /* HOSTAPD */ 9197 return -1; 9198 } 9199 } 9200 9201 if (!addr) { 9202 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 9203 os_memcpy(if_addr, bss->addr, ETH_ALEN); 9204 else if (linux_get_ifhwaddr(drv->global->ioctl_sock, 9205 bss->ifname, if_addr) < 0) { 9206 nl80211_remove_iface(drv, ifidx); 9207 return -1; 9208 } 9209 } 9210 9211#ifdef CONFIG_P2P 9212 if (!addr && 9213 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP || 9214 type == WPA_IF_P2P_GO)) { 9215 /* Enforce unique P2P Interface Address */ 9216 u8 new_addr[ETH_ALEN]; 9217 9218 if (linux_get_ifhwaddr(drv->global->ioctl_sock, ifname, 9219 new_addr) < 0) { 9220 nl80211_remove_iface(drv, ifidx); 9221 return -1; 9222 } 9223 if (nl80211_addr_in_use(drv->global, new_addr)) { 9224 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address " 9225 "for P2P group interface"); 9226 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) { 9227 nl80211_remove_iface(drv, ifidx); 9228 return -1; 9229 } 9230 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 9231 new_addr) < 0) { 9232 nl80211_remove_iface(drv, ifidx); 9233 return -1; 9234 } 9235 } 9236 os_memcpy(if_addr, new_addr, ETH_ALEN); 9237 } 9238#endif /* CONFIG_P2P */ 9239 9240#ifdef HOSTAPD 9241 if (bridge && 9242 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) { 9243 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new " 9244 "interface %s to a bridge %s", ifname, bridge); 9245 nl80211_remove_iface(drv, ifidx); 9246 os_free(new_bss); 9247 return -1; 9248 } 9249 9250 if (type == WPA_IF_AP_BSS) { 9251 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1)) 9252 { 9253 nl80211_remove_iface(drv, ifidx); 9254 os_free(new_bss); 9255 return -1; 9256 } 9257 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ); 9258 os_memcpy(new_bss->addr, if_addr, ETH_ALEN); 9259 new_bss->ifindex = ifidx; 9260 new_bss->drv = drv; 9261 new_bss->next = drv->first_bss.next; 9262 new_bss->freq = drv->first_bss.freq; 9263 new_bss->ctx = bss_ctx; 9264 drv->first_bss.next = new_bss; 9265 if (drv_priv) 9266 *drv_priv = new_bss; 9267 nl80211_init_bss(new_bss); 9268 9269 /* Subscribe management frames for this WPA_IF_AP_BSS */ 9270 if (nl80211_setup_ap(new_bss)) 9271 return -1; 9272 } 9273#endif /* HOSTAPD */ 9274 9275 if (drv->global) 9276 drv->global->if_add_ifindex = ifidx; 9277 9278 return 0; 9279} 9280 9281 9282static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 9283 enum wpa_driver_if_type type, 9284 const char *ifname) 9285{ 9286 struct wpa_driver_nl80211_data *drv = bss->drv; 9287 int ifindex = if_nametoindex(ifname); 9288 9289 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d", 9290 __func__, type, ifname, ifindex); 9291 if (ifindex > 0) 9292 nl80211_remove_iface(drv, ifindex); 9293 9294#ifdef HOSTAPD 9295 if (type != WPA_IF_AP_BSS) 9296 return 0; 9297 9298 if (bss->added_if_into_bridge) { 9299 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 9300 bss->ifname) < 0) 9301 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 9302 "interface %s from bridge %s: %s", 9303 bss->ifname, bss->brname, strerror(errno)); 9304 } 9305 if (bss->added_bridge) { 9306 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 9307 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 9308 "bridge %s: %s", 9309 bss->brname, strerror(errno)); 9310 } 9311 9312 if (bss != &drv->first_bss) { 9313 struct i802_bss *tbss; 9314 9315 for (tbss = &drv->first_bss; tbss; tbss = tbss->next) { 9316 if (tbss->next == bss) { 9317 tbss->next = bss->next; 9318 /* Unsubscribe management frames */ 9319 nl80211_teardown_ap(bss); 9320 nl80211_destroy_bss(bss); 9321 os_free(bss); 9322 bss = NULL; 9323 break; 9324 } 9325 } 9326 if (bss) 9327 wpa_printf(MSG_INFO, "nl80211: %s - could not find " 9328 "BSS %p in the list", __func__, bss); 9329 } 9330#endif /* HOSTAPD */ 9331 9332 return 0; 9333} 9334 9335 9336static int cookie_handler(struct nl_msg *msg, void *arg) 9337{ 9338 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9339 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9340 u64 *cookie = arg; 9341 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9342 genlmsg_attrlen(gnlh, 0), NULL); 9343 if (tb[NL80211_ATTR_COOKIE]) 9344 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 9345 return NL_SKIP; 9346} 9347 9348 9349static int nl80211_send_frame_cmd(struct i802_bss *bss, 9350 unsigned int freq, unsigned int wait, 9351 const u8 *buf, size_t buf_len, 9352 u64 *cookie_out, int no_cck, int no_ack, 9353 int offchanok) 9354{ 9355 struct wpa_driver_nl80211_data *drv = bss->drv; 9356 struct nl_msg *msg; 9357 u64 cookie; 9358 int ret = -1; 9359 9360 msg = nlmsg_alloc(); 9361 if (!msg) 9362 return -1; 9363 9364 wpa_printf(MSG_MSGDUMP, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d " 9365 "no_ack=%d offchanok=%d", 9366 freq, wait, no_cck, no_ack, offchanok); 9367 wpa_hexdump(MSG_MSGDUMP, "CMD_FRAME", buf, buf_len); 9368 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME); 9369 9370 if (nl80211_set_iface_id(msg, bss) < 0) 9371 goto nla_put_failure; 9372 if (freq) 9373 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 9374 if (wait) 9375 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait); 9376 if (offchanok && (drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX)) 9377 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK); 9378 if (no_cck) 9379 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 9380 if (no_ack) 9381 NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK); 9382 9383 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf); 9384 9385 cookie = 0; 9386 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 9387 msg = NULL; 9388 if (ret) { 9389 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d " 9390 "(%s) (freq=%u wait=%u)", ret, strerror(-ret), 9391 freq, wait); 9392 goto nla_put_failure; 9393 } 9394 wpa_printf(MSG_MSGDUMP, "nl80211: Frame TX command accepted%s; " 9395 "cookie 0x%llx", no_ack ? " (no ACK)" : "", 9396 (long long unsigned int) cookie); 9397 9398 if (cookie_out) 9399 *cookie_out = no_ack ? (u64) -1 : cookie; 9400 9401nla_put_failure: 9402 nlmsg_free(msg); 9403 return ret; 9404} 9405 9406 9407static int wpa_driver_nl80211_send_action(struct i802_bss *bss, 9408 unsigned int freq, 9409 unsigned int wait_time, 9410 const u8 *dst, const u8 *src, 9411 const u8 *bssid, 9412 const u8 *data, size_t data_len, 9413 int no_cck) 9414{ 9415 struct wpa_driver_nl80211_data *drv = bss->drv; 9416 int ret = -1; 9417 u8 *buf; 9418 struct ieee80211_hdr *hdr; 9419 9420 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, " 9421 "freq=%u MHz wait=%d ms no_cck=%d)", 9422 drv->ifindex, freq, wait_time, no_cck); 9423 9424 buf = os_zalloc(24 + data_len); 9425 if (buf == NULL) 9426 return ret; 9427 os_memcpy(buf + 24, data, data_len); 9428 hdr = (struct ieee80211_hdr *) buf; 9429 hdr->frame_control = 9430 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION); 9431 os_memcpy(hdr->addr1, dst, ETH_ALEN); 9432 os_memcpy(hdr->addr2, src, ETH_ALEN); 9433 os_memcpy(hdr->addr3, bssid, ETH_ALEN); 9434 9435 if (is_ap_interface(drv->nlmode) && 9436 (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) || 9437 (int) freq == bss->freq || drv->device_ap_sme || 9438 !drv->use_monitor)) 9439 ret = wpa_driver_nl80211_send_mlme(bss, buf, 24 + data_len, 9440 0, freq, no_cck, 1, 9441 wait_time); 9442 else 9443 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf, 9444 24 + data_len, 9445 &drv->send_action_cookie, 9446 no_cck, 0, 1); 9447 9448 os_free(buf); 9449 return ret; 9450} 9451 9452 9453static void wpa_driver_nl80211_send_action_cancel_wait(void *priv) 9454{ 9455 struct i802_bss *bss = priv; 9456 struct wpa_driver_nl80211_data *drv = bss->drv; 9457 struct nl_msg *msg; 9458 int ret; 9459 9460 msg = nlmsg_alloc(); 9461 if (!msg) 9462 return; 9463 9464 wpa_printf(MSG_DEBUG, "nl80211: Cancel TX frame wait: cookie=0x%llx", 9465 (long long unsigned int) drv->send_action_cookie); 9466 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL); 9467 9468 if (nl80211_set_iface_id(msg, bss) < 0) 9469 goto nla_put_failure; 9470 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie); 9471 9472 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9473 msg = NULL; 9474 if (ret) 9475 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d " 9476 "(%s)", ret, strerror(-ret)); 9477 9478 nla_put_failure: 9479 nlmsg_free(msg); 9480} 9481 9482 9483static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq, 9484 unsigned int duration) 9485{ 9486 struct i802_bss *bss = priv; 9487 struct wpa_driver_nl80211_data *drv = bss->drv; 9488 struct nl_msg *msg; 9489 int ret; 9490 u64 cookie; 9491 9492 msg = nlmsg_alloc(); 9493 if (!msg) 9494 return -1; 9495 9496 nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL); 9497 9498 if (nl80211_set_iface_id(msg, bss) < 0) 9499 goto nla_put_failure; 9500 9501 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 9502 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); 9503 9504 cookie = 0; 9505 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 9506 msg = NULL; 9507 if (ret == 0) { 9508 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie " 9509 "0x%llx for freq=%u MHz duration=%u", 9510 (long long unsigned int) cookie, freq, duration); 9511 drv->remain_on_chan_cookie = cookie; 9512 drv->pending_remain_on_chan = 1; 9513 return 0; 9514 } 9515 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel " 9516 "(freq=%d duration=%u): %d (%s)", 9517 freq, duration, ret, strerror(-ret)); 9518nla_put_failure: 9519 nlmsg_free(msg); 9520 return -1; 9521} 9522 9523 9524static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv) 9525{ 9526 struct i802_bss *bss = priv; 9527 struct wpa_driver_nl80211_data *drv = bss->drv; 9528 struct nl_msg *msg; 9529 int ret; 9530 9531 if (!drv->pending_remain_on_chan) { 9532 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel " 9533 "to cancel"); 9534 return -1; 9535 } 9536 9537 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie " 9538 "0x%llx", 9539 (long long unsigned int) drv->remain_on_chan_cookie); 9540 9541 msg = nlmsg_alloc(); 9542 if (!msg) 9543 return -1; 9544 9545 nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL); 9546 9547 if (nl80211_set_iface_id(msg, bss) < 0) 9548 goto nla_put_failure; 9549 9550 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie); 9551 9552 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9553 msg = NULL; 9554 if (ret == 0) 9555 return 0; 9556 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: " 9557 "%d (%s)", ret, strerror(-ret)); 9558nla_put_failure: 9559 nlmsg_free(msg); 9560 return -1; 9561} 9562 9563 9564static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report) 9565{ 9566 struct wpa_driver_nl80211_data *drv = bss->drv; 9567 9568 if (!report) { 9569 if (bss->nl_preq && drv->device_ap_sme && 9570 is_ap_interface(drv->nlmode)) { 9571 /* 9572 * Do not disable Probe Request reporting that was 9573 * enabled in nl80211_setup_ap(). 9574 */ 9575 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of " 9576 "Probe Request reporting nl_preq=%p while " 9577 "in AP mode", bss->nl_preq); 9578 } else if (bss->nl_preq) { 9579 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request " 9580 "reporting nl_preq=%p", bss->nl_preq); 9581 eloop_unregister_read_sock( 9582 nl_socket_get_fd(bss->nl_preq)); 9583 nl_destroy_handles(&bss->nl_preq); 9584 } 9585 return 0; 9586 } 9587 9588 if (bss->nl_preq) { 9589 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting " 9590 "already on! nl_preq=%p", bss->nl_preq); 9591 return 0; 9592 } 9593 9594 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq"); 9595 if (bss->nl_preq == NULL) 9596 return -1; 9597 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request " 9598 "reporting nl_preq=%p", bss->nl_preq); 9599 9600 if (nl80211_register_frame(bss, bss->nl_preq, 9601 (WLAN_FC_TYPE_MGMT << 2) | 9602 (WLAN_FC_STYPE_PROBE_REQ << 4), 9603 NULL, 0) < 0) 9604 goto out_err; 9605 9606 eloop_register_read_sock(nl_socket_get_fd(bss->nl_preq), 9607 wpa_driver_nl80211_event_receive, bss->nl_cb, 9608 bss->nl_preq); 9609 9610 return 0; 9611 9612 out_err: 9613 nl_destroy_handles(&bss->nl_preq); 9614 return -1; 9615} 9616 9617 9618static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 9619 int ifindex, int disabled) 9620{ 9621 struct nl_msg *msg; 9622 struct nlattr *bands, *band; 9623 int ret; 9624 9625 msg = nlmsg_alloc(); 9626 if (!msg) 9627 return -1; 9628 9629 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK); 9630 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 9631 9632 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES); 9633 if (!bands) 9634 goto nla_put_failure; 9635 9636 /* 9637 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything 9638 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS 9639 * rates. All 5 GHz rates are left enabled. 9640 */ 9641 band = nla_nest_start(msg, NL80211_BAND_2GHZ); 9642 if (!band) 9643 goto nla_put_failure; 9644 if (disabled) { 9645 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8, 9646 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 9647 } 9648 nla_nest_end(msg, band); 9649 9650 nla_nest_end(msg, bands); 9651 9652 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9653 msg = NULL; 9654 if (ret) { 9655 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d " 9656 "(%s)", ret, strerror(-ret)); 9657 } else 9658 drv->disabled_11b_rates = disabled; 9659 9660 return ret; 9661 9662nla_put_failure: 9663 nlmsg_free(msg); 9664 return -1; 9665} 9666 9667 9668static int wpa_driver_nl80211_deinit_ap(void *priv) 9669{ 9670 struct i802_bss *bss = priv; 9671 struct wpa_driver_nl80211_data *drv = bss->drv; 9672 if (!is_ap_interface(drv->nlmode)) 9673 return -1; 9674 wpa_driver_nl80211_del_beacon(drv); 9675 9676 /* 9677 * If the P2P GO interface was dynamically added, then it is 9678 * possible that the interface change to station is not possible. 9679 */ 9680 if (drv->nlmode == NL80211_IFTYPE_P2P_GO && bss->if_dynamic) 9681 return 0; 9682 9683 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 9684} 9685 9686 9687static int wpa_driver_nl80211_stop_ap(void *priv) 9688{ 9689 struct i802_bss *bss = priv; 9690 struct wpa_driver_nl80211_data *drv = bss->drv; 9691 if (!is_ap_interface(drv->nlmode)) 9692 return -1; 9693 wpa_driver_nl80211_del_beacon(drv); 9694 bss->beacon_set = 0; 9695 return 0; 9696} 9697 9698 9699static int wpa_driver_nl80211_deinit_p2p_cli(void *priv) 9700{ 9701 struct i802_bss *bss = priv; 9702 struct wpa_driver_nl80211_data *drv = bss->drv; 9703 if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT) 9704 return -1; 9705 9706 /* 9707 * If the P2P Client interface was dynamically added, then it is 9708 * possible that the interface change to station is not possible. 9709 */ 9710 if (bss->if_dynamic) 9711 return 0; 9712 9713 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 9714} 9715 9716 9717static void wpa_driver_nl80211_resume(void *priv) 9718{ 9719 struct i802_bss *bss = priv; 9720 9721 if (i802_set_iface_flags(bss, 1)) 9722 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on resume event"); 9723} 9724 9725 9726static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap, 9727 const u8 *ies, size_t ies_len) 9728{ 9729 struct i802_bss *bss = priv; 9730 struct wpa_driver_nl80211_data *drv = bss->drv; 9731 int ret; 9732 u8 *data, *pos; 9733 size_t data_len; 9734 const u8 *own_addr = bss->addr; 9735 9736 if (action != 1) { 9737 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action " 9738 "action %d", action); 9739 return -1; 9740 } 9741 9742 /* 9743 * Action frame payload: 9744 * Category[1] = 6 (Fast BSS Transition) 9745 * Action[1] = 1 (Fast BSS Transition Request) 9746 * STA Address 9747 * Target AP Address 9748 * FT IEs 9749 */ 9750 9751 data_len = 2 + 2 * ETH_ALEN + ies_len; 9752 data = os_malloc(data_len); 9753 if (data == NULL) 9754 return -1; 9755 pos = data; 9756 *pos++ = 0x06; /* FT Action category */ 9757 *pos++ = action; 9758 os_memcpy(pos, own_addr, ETH_ALEN); 9759 pos += ETH_ALEN; 9760 os_memcpy(pos, target_ap, ETH_ALEN); 9761 pos += ETH_ALEN; 9762 os_memcpy(pos, ies, ies_len); 9763 9764 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0, 9765 drv->bssid, own_addr, drv->bssid, 9766 data, data_len, 0); 9767 os_free(data); 9768 9769 return ret; 9770} 9771 9772 9773static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis) 9774{ 9775 struct i802_bss *bss = priv; 9776 struct wpa_driver_nl80211_data *drv = bss->drv; 9777 struct nl_msg *msg; 9778 struct nlattr *cqm; 9779 int ret = -1; 9780 9781 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d " 9782 "hysteresis=%d", threshold, hysteresis); 9783 9784 msg = nlmsg_alloc(); 9785 if (!msg) 9786 return -1; 9787 9788 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM); 9789 9790 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 9791 9792 cqm = nla_nest_start(msg, NL80211_ATTR_CQM); 9793 if (cqm == NULL) 9794 goto nla_put_failure; 9795 9796 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THOLD, threshold); 9797 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_HYST, hysteresis); 9798 nla_nest_end(msg, cqm); 9799 9800 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9801 msg = NULL; 9802 9803nla_put_failure: 9804 nlmsg_free(msg); 9805 return ret; 9806} 9807 9808 9809/* Converts nl80211_chan_width to a common format */ 9810static enum chan_width convert2width(int width) 9811{ 9812 switch (width) { 9813 case NL80211_CHAN_WIDTH_20_NOHT: 9814 return CHAN_WIDTH_20_NOHT; 9815 case NL80211_CHAN_WIDTH_20: 9816 return CHAN_WIDTH_20; 9817 case NL80211_CHAN_WIDTH_40: 9818 return CHAN_WIDTH_40; 9819 case NL80211_CHAN_WIDTH_80: 9820 return CHAN_WIDTH_80; 9821 case NL80211_CHAN_WIDTH_80P80: 9822 return CHAN_WIDTH_80P80; 9823 case NL80211_CHAN_WIDTH_160: 9824 return CHAN_WIDTH_160; 9825 } 9826 return CHAN_WIDTH_UNKNOWN; 9827} 9828 9829 9830static int get_channel_width(struct nl_msg *msg, void *arg) 9831{ 9832 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9833 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9834 struct wpa_signal_info *sig_change = arg; 9835 9836 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9837 genlmsg_attrlen(gnlh, 0), NULL); 9838 9839 sig_change->center_frq1 = -1; 9840 sig_change->center_frq2 = -1; 9841 sig_change->chanwidth = CHAN_WIDTH_UNKNOWN; 9842 9843 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) { 9844 sig_change->chanwidth = convert2width( 9845 nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH])); 9846 if (tb[NL80211_ATTR_CENTER_FREQ1]) 9847 sig_change->center_frq1 = 9848 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); 9849 if (tb[NL80211_ATTR_CENTER_FREQ2]) 9850 sig_change->center_frq2 = 9851 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); 9852 } 9853 9854 return NL_SKIP; 9855} 9856 9857 9858static int nl80211_get_channel_width(struct wpa_driver_nl80211_data *drv, 9859 struct wpa_signal_info *sig) 9860{ 9861 struct nl_msg *msg; 9862 9863 msg = nlmsg_alloc(); 9864 if (!msg) 9865 return -ENOMEM; 9866 9867 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_INTERFACE); 9868 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9869 9870 return send_and_recv_msgs(drv, msg, get_channel_width, sig); 9871 9872nla_put_failure: 9873 nlmsg_free(msg); 9874 return -ENOBUFS; 9875} 9876 9877 9878static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si) 9879{ 9880 struct i802_bss *bss = priv; 9881 struct wpa_driver_nl80211_data *drv = bss->drv; 9882 int res; 9883 9884 os_memset(si, 0, sizeof(*si)); 9885 res = nl80211_get_link_signal(drv, si); 9886 if (res != 0) 9887 return res; 9888 9889 res = nl80211_get_channel_width(drv, si); 9890 if (res != 0) 9891 return res; 9892 9893 return nl80211_get_link_noise(drv, si); 9894} 9895 9896 9897static int wpa_driver_nl80211_shared_freq(void *priv) 9898{ 9899 struct i802_bss *bss = priv; 9900 struct wpa_driver_nl80211_data *drv = bss->drv; 9901 struct wpa_driver_nl80211_data *driver; 9902 int freq = 0; 9903 9904 /* 9905 * If the same PHY is in connected state with some other interface, 9906 * then retrieve the assoc freq. 9907 */ 9908 wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s", 9909 drv->phyname); 9910 9911 dl_list_for_each(driver, &drv->global->interfaces, 9912 struct wpa_driver_nl80211_data, list) { 9913 if (drv == driver || 9914 os_strcmp(drv->phyname, driver->phyname) != 0 || 9915#ifdef ANDROID_P2P 9916 (!driver->associated && !is_ap_interface(driver->nlmode))) 9917#else 9918 !driver->associated) 9919#endif 9920 continue; 9921 9922 wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s " 9923 MACSTR, 9924 driver->phyname, driver->first_bss.ifname, 9925 MAC2STR(driver->first_bss.addr)); 9926 if (is_ap_interface(driver->nlmode)) 9927 freq = driver->first_bss.freq; 9928 else 9929 freq = nl80211_get_assoc_freq(driver); 9930 wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d", 9931 drv->phyname, freq); 9932 } 9933 9934 if (!freq) 9935 wpa_printf(MSG_DEBUG, "nl80211: No shared interface for " 9936 "PHY (%s) in associated state", drv->phyname); 9937 9938 return freq; 9939} 9940 9941 9942static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len, 9943 int encrypt) 9944{ 9945 struct i802_bss *bss = priv; 9946 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0, 9947 0, 0, 0, 0); 9948} 9949 9950 9951static int nl80211_set_param(void *priv, const char *param) 9952{ 9953 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param); 9954 if (param == NULL) 9955 return 0; 9956 9957#ifdef CONFIG_P2P 9958 if (os_strstr(param, "use_p2p_group_interface=1")) { 9959 struct i802_bss *bss = priv; 9960 struct wpa_driver_nl80211_data *drv = bss->drv; 9961 9962 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 9963 "interface"); 9964 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 9965 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 9966 } 9967 9968 if (os_strstr(param, "p2p_device=1")) { 9969 struct i802_bss *bss = priv; 9970 struct wpa_driver_nl80211_data *drv = bss->drv; 9971 drv->allow_p2p_device = 1; 9972 } 9973 9974#ifdef ANDROID_P2P 9975 if(os_strstr(param, "use_multi_chan_concurrent=1")) { 9976 struct i802_bss *bss = priv; 9977 struct wpa_driver_nl80211_data *drv = bss->drv; 9978 wpa_printf(MSG_DEBUG, "nl80211: Use Multi channel " 9979 "concurrency"); 9980 drv->capa.num_multichan_concurrent = 2; 9981 } 9982#endif 9983#endif /* CONFIG_P2P */ 9984 9985 return 0; 9986} 9987 9988 9989static void * nl80211_global_init(void) 9990{ 9991 struct nl80211_global *global; 9992 struct netlink_config *cfg; 9993 9994 global = os_zalloc(sizeof(*global)); 9995 if (global == NULL) 9996 return NULL; 9997 global->ioctl_sock = -1; 9998 dl_list_init(&global->interfaces); 9999 global->if_add_ifindex = -1; 10000 10001 cfg = os_zalloc(sizeof(*cfg)); 10002 if (cfg == NULL) 10003 goto err; 10004 10005 cfg->ctx = global; 10006 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink; 10007 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink; 10008 global->netlink = netlink_init(cfg); 10009 if (global->netlink == NULL) { 10010 os_free(cfg); 10011 goto err; 10012 } 10013 10014 if (wpa_driver_nl80211_init_nl_global(global) < 0) 10015 goto err; 10016 10017 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0); 10018 if (global->ioctl_sock < 0) { 10019 perror("socket(PF_INET,SOCK_DGRAM)"); 10020 goto err; 10021 } 10022 10023 return global; 10024 10025err: 10026 nl80211_global_deinit(global); 10027 return NULL; 10028} 10029 10030 10031static void nl80211_global_deinit(void *priv) 10032{ 10033 struct nl80211_global *global = priv; 10034 if (global == NULL) 10035 return; 10036 if (!dl_list_empty(&global->interfaces)) { 10037 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at " 10038 "nl80211_global_deinit", 10039 dl_list_len(&global->interfaces)); 10040 } 10041 10042 if (global->netlink) 10043 netlink_deinit(global->netlink); 10044 10045 nl_destroy_handles(&global->nl); 10046 10047 if (global->nl_event) { 10048 eloop_unregister_read_sock( 10049 nl_socket_get_fd(global->nl_event)); 10050 nl_destroy_handles(&global->nl_event); 10051 } 10052 10053 nl_cb_put(global->nl_cb); 10054 10055 if (global->ioctl_sock >= 0) 10056 close(global->ioctl_sock); 10057 10058 os_free(global); 10059} 10060 10061 10062static const char * nl80211_get_radio_name(void *priv) 10063{ 10064 struct i802_bss *bss = priv; 10065 struct wpa_driver_nl80211_data *drv = bss->drv; 10066 return drv->phyname; 10067} 10068 10069 10070static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid, 10071 const u8 *pmkid) 10072{ 10073 struct nl_msg *msg; 10074 10075 msg = nlmsg_alloc(); 10076 if (!msg) 10077 return -ENOMEM; 10078 10079 nl80211_cmd(bss->drv, msg, 0, cmd); 10080 10081 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 10082 if (pmkid) 10083 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid); 10084 if (bssid) 10085 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); 10086 10087 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 10088 nla_put_failure: 10089 nlmsg_free(msg); 10090 return -ENOBUFS; 10091} 10092 10093 10094static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 10095{ 10096 struct i802_bss *bss = priv; 10097 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid)); 10098 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid); 10099} 10100 10101 10102static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 10103{ 10104 struct i802_bss *bss = priv; 10105 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR, 10106 MAC2STR(bssid)); 10107 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid); 10108} 10109 10110 10111static int nl80211_flush_pmkid(void *priv) 10112{ 10113 struct i802_bss *bss = priv; 10114 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs"); 10115 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL); 10116} 10117 10118 10119static void clean_survey_results(struct survey_results *survey_results) 10120{ 10121 struct freq_survey *survey, *tmp; 10122 10123 if (dl_list_empty(&survey_results->survey_list)) 10124 return; 10125 10126 dl_list_for_each_safe(survey, tmp, &survey_results->survey_list, 10127 struct freq_survey, list) { 10128 dl_list_del(&survey->list); 10129 os_free(survey); 10130 } 10131} 10132 10133 10134static void add_survey(struct nlattr **sinfo, u32 ifidx, 10135 struct dl_list *survey_list) 10136{ 10137 struct freq_survey *survey; 10138 10139 survey = os_zalloc(sizeof(struct freq_survey)); 10140 if (!survey) 10141 return; 10142 10143 survey->ifidx = ifidx; 10144 survey->freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); 10145 survey->filled = 0; 10146 10147 if (sinfo[NL80211_SURVEY_INFO_NOISE]) { 10148 survey->nf = (int8_t) 10149 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 10150 survey->filled |= SURVEY_HAS_NF; 10151 } 10152 10153 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]) { 10154 survey->channel_time = 10155 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]); 10156 survey->filled |= SURVEY_HAS_CHAN_TIME; 10157 } 10158 10159 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]) { 10160 survey->channel_time_busy = 10161 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]); 10162 survey->filled |= SURVEY_HAS_CHAN_TIME_BUSY; 10163 } 10164 10165 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]) { 10166 survey->channel_time_rx = 10167 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]); 10168 survey->filled |= SURVEY_HAS_CHAN_TIME_RX; 10169 } 10170 10171 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]) { 10172 survey->channel_time_tx = 10173 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]); 10174 survey->filled |= SURVEY_HAS_CHAN_TIME_TX; 10175 } 10176 10177 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)", 10178 survey->freq, 10179 survey->nf, 10180 (unsigned long int) survey->channel_time, 10181 (unsigned long int) survey->channel_time_busy, 10182 (unsigned long int) survey->channel_time_tx, 10183 (unsigned long int) survey->channel_time_rx, 10184 survey->filled); 10185 10186 dl_list_add_tail(survey_list, &survey->list); 10187} 10188 10189 10190static int check_survey_ok(struct nlattr **sinfo, u32 surveyed_freq, 10191 unsigned int freq_filter) 10192{ 10193 if (!freq_filter) 10194 return 1; 10195 10196 return freq_filter == surveyed_freq; 10197} 10198 10199 10200static int survey_handler(struct nl_msg *msg, void *arg) 10201{ 10202 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 10203 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 10204 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 10205 struct survey_results *survey_results; 10206 u32 surveyed_freq = 0; 10207 u32 ifidx; 10208 10209 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 10210 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 10211 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 10212 }; 10213 10214 survey_results = (struct survey_results *) arg; 10215 10216 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 10217 genlmsg_attrlen(gnlh, 0), NULL); 10218 10219 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 10220 10221 if (!tb[NL80211_ATTR_SURVEY_INFO]) 10222 return NL_SKIP; 10223 10224 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 10225 tb[NL80211_ATTR_SURVEY_INFO], 10226 survey_policy)) 10227 return NL_SKIP; 10228 10229 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) { 10230 wpa_printf(MSG_ERROR, "nl80211: Invalid survey data"); 10231 return NL_SKIP; 10232 } 10233 10234 surveyed_freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); 10235 10236 if (!check_survey_ok(sinfo, surveyed_freq, 10237 survey_results->freq_filter)) 10238 return NL_SKIP; 10239 10240 if (survey_results->freq_filter && 10241 survey_results->freq_filter != surveyed_freq) { 10242 wpa_printf(MSG_EXCESSIVE, "nl80211: Ignoring survey data for freq %d MHz", 10243 surveyed_freq); 10244 return NL_SKIP; 10245 } 10246 10247 add_survey(sinfo, ifidx, &survey_results->survey_list); 10248 10249 return NL_SKIP; 10250} 10251 10252 10253static int wpa_driver_nl80211_get_survey(void *priv, unsigned int freq) 10254{ 10255 struct i802_bss *bss = priv; 10256 struct wpa_driver_nl80211_data *drv = bss->drv; 10257 struct nl_msg *msg; 10258 int err = -ENOBUFS; 10259 union wpa_event_data data; 10260 struct survey_results *survey_results; 10261 10262 os_memset(&data, 0, sizeof(data)); 10263 survey_results = &data.survey_results; 10264 10265 dl_list_init(&survey_results->survey_list); 10266 10267 msg = nlmsg_alloc(); 10268 if (!msg) 10269 goto nla_put_failure; 10270 10271 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 10272 10273 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10274 10275 if (freq) 10276 data.survey_results.freq_filter = freq; 10277 10278 do { 10279 wpa_printf(MSG_DEBUG, "nl80211: Fetch survey data"); 10280 err = send_and_recv_msgs(drv, msg, survey_handler, 10281 survey_results); 10282 } while (err > 0); 10283 10284 if (err) { 10285 wpa_printf(MSG_ERROR, "nl80211: Failed to process survey data"); 10286 goto out_clean; 10287 } 10288 10289 wpa_supplicant_event(drv->ctx, EVENT_SURVEY, &data); 10290 10291out_clean: 10292 clean_survey_results(survey_results); 10293nla_put_failure: 10294 return err; 10295} 10296 10297 10298static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck, 10299 const u8 *replay_ctr) 10300{ 10301 struct i802_bss *bss = priv; 10302 struct wpa_driver_nl80211_data *drv = bss->drv; 10303 struct nlattr *replay_nested; 10304 struct nl_msg *msg; 10305 10306 msg = nlmsg_alloc(); 10307 if (!msg) 10308 return; 10309 10310 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD); 10311 10312 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10313 10314 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); 10315 if (!replay_nested) 10316 goto nla_put_failure; 10317 10318 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek); 10319 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck); 10320 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN, 10321 replay_ctr); 10322 10323 nla_nest_end(msg, replay_nested); 10324 10325 send_and_recv_msgs(drv, msg, NULL, NULL); 10326 return; 10327 nla_put_failure: 10328 nlmsg_free(msg); 10329} 10330 10331 10332static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr, 10333 const u8 *addr, int qos) 10334{ 10335 /* send data frame to poll STA and check whether 10336 * this frame is ACKed */ 10337 struct { 10338 struct ieee80211_hdr hdr; 10339 u16 qos_ctl; 10340 } STRUCT_PACKED nulldata; 10341 size_t size; 10342 10343 /* Send data frame to poll STA and check whether this frame is ACKed */ 10344 10345 os_memset(&nulldata, 0, sizeof(nulldata)); 10346 10347 if (qos) { 10348 nulldata.hdr.frame_control = 10349 IEEE80211_FC(WLAN_FC_TYPE_DATA, 10350 WLAN_FC_STYPE_QOS_NULL); 10351 size = sizeof(nulldata); 10352 } else { 10353 nulldata.hdr.frame_control = 10354 IEEE80211_FC(WLAN_FC_TYPE_DATA, 10355 WLAN_FC_STYPE_NULLFUNC); 10356 size = sizeof(struct ieee80211_hdr); 10357 } 10358 10359 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS); 10360 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN); 10361 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 10362 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 10363 10364 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0, 0, 0, 10365 0, 0) < 0) 10366 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to " 10367 "send poll frame"); 10368} 10369 10370static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr, 10371 int qos) 10372{ 10373 struct i802_bss *bss = priv; 10374 struct wpa_driver_nl80211_data *drv = bss->drv; 10375 struct nl_msg *msg; 10376 10377 if (!drv->poll_command_supported) { 10378 nl80211_send_null_frame(bss, own_addr, addr, qos); 10379 return; 10380 } 10381 10382 msg = nlmsg_alloc(); 10383 if (!msg) 10384 return; 10385 10386 nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT); 10387 10388 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10389 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 10390 10391 send_and_recv_msgs(drv, msg, NULL, NULL); 10392 return; 10393 nla_put_failure: 10394 nlmsg_free(msg); 10395} 10396 10397 10398static int nl80211_set_power_save(struct i802_bss *bss, int enabled) 10399{ 10400 struct nl_msg *msg; 10401 10402 msg = nlmsg_alloc(); 10403 if (!msg) 10404 return -ENOMEM; 10405 10406 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE); 10407 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10408 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, 10409 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED); 10410 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 10411nla_put_failure: 10412 nlmsg_free(msg); 10413 return -ENOBUFS; 10414} 10415 10416 10417static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps, 10418 int ctwindow) 10419{ 10420 struct i802_bss *bss = priv; 10421 10422 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d " 10423 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow); 10424 10425 if (opp_ps != -1 || ctwindow != -1) 10426#ifdef ANDROID_P2P 10427 wpa_driver_set_p2p_ps(priv, legacy_ps, opp_ps, ctwindow); 10428#else 10429 return -1; /* Not yet supported */ 10430#endif 10431 10432 if (legacy_ps == -1) 10433 return 0; 10434 if (legacy_ps != 0 && legacy_ps != 1) 10435 return -1; /* Not yet supported */ 10436 10437 return nl80211_set_power_save(bss, legacy_ps); 10438} 10439 10440 10441static int nl80211_start_radar_detection(void *priv, 10442 struct hostapd_freq_params *freq) 10443{ 10444 struct i802_bss *bss = priv; 10445 struct wpa_driver_nl80211_data *drv = bss->drv; 10446 struct nl_msg *msg; 10447 int ret; 10448 10449 wpa_printf(MSG_DEBUG, "nl80211: Start radar detection (CAC) %d MHz (ht_enabled=%d, vht_enabled=%d, bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)", 10450 freq->freq, freq->ht_enabled, freq->vht_enabled, 10451 freq->bandwidth, freq->center_freq1, freq->center_freq2); 10452 10453 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_RADAR)) { 10454 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support radar " 10455 "detection"); 10456 return -1; 10457 } 10458 10459 msg = nlmsg_alloc(); 10460 if (!msg) 10461 return -1; 10462 10463 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_RADAR_DETECT); 10464 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10465 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); 10466 10467 if (freq->vht_enabled) { 10468 switch (freq->bandwidth) { 10469 case 20: 10470 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 10471 NL80211_CHAN_WIDTH_20); 10472 break; 10473 case 40: 10474 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 10475 NL80211_CHAN_WIDTH_40); 10476 break; 10477 case 80: 10478 if (freq->center_freq2) 10479 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 10480 NL80211_CHAN_WIDTH_80P80); 10481 else 10482 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 10483 NL80211_CHAN_WIDTH_80); 10484 break; 10485 case 160: 10486 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 10487 NL80211_CHAN_WIDTH_160); 10488 break; 10489 default: 10490 return -1; 10491 } 10492 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); 10493 if (freq->center_freq2) 10494 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, 10495 freq->center_freq2); 10496 } else if (freq->ht_enabled) { 10497 switch (freq->sec_channel_offset) { 10498 case -1: 10499 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 10500 NL80211_CHAN_HT40MINUS); 10501 break; 10502 case 1: 10503 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 10504 NL80211_CHAN_HT40PLUS); 10505 break; 10506 default: 10507 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 10508 NL80211_CHAN_HT20); 10509 break; 10510 } 10511 } 10512 10513 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10514 if (ret == 0) 10515 return 0; 10516 wpa_printf(MSG_DEBUG, "nl80211: Failed to start radar detection: " 10517 "%d (%s)", ret, strerror(-ret)); 10518nla_put_failure: 10519 return -1; 10520} 10521 10522#ifdef CONFIG_TDLS 10523 10524static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code, 10525 u8 dialog_token, u16 status_code, 10526 const u8 *buf, size_t len) 10527{ 10528 struct i802_bss *bss = priv; 10529 struct wpa_driver_nl80211_data *drv = bss->drv; 10530 struct nl_msg *msg; 10531 10532 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 10533 return -EOPNOTSUPP; 10534 10535 if (!dst) 10536 return -EINVAL; 10537 10538 msg = nlmsg_alloc(); 10539 if (!msg) 10540 return -ENOMEM; 10541 10542 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT); 10543 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10544 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); 10545 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code); 10546 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token); 10547 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code); 10548 NLA_PUT(msg, NL80211_ATTR_IE, len, buf); 10549 10550 return send_and_recv_msgs(drv, msg, NULL, NULL); 10551 10552nla_put_failure: 10553 nlmsg_free(msg); 10554 return -ENOBUFS; 10555} 10556 10557 10558static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer) 10559{ 10560 struct i802_bss *bss = priv; 10561 struct wpa_driver_nl80211_data *drv = bss->drv; 10562 struct nl_msg *msg; 10563 enum nl80211_tdls_operation nl80211_oper; 10564 10565 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 10566 return -EOPNOTSUPP; 10567 10568 switch (oper) { 10569 case TDLS_DISCOVERY_REQ: 10570 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ; 10571 break; 10572 case TDLS_SETUP: 10573 nl80211_oper = NL80211_TDLS_SETUP; 10574 break; 10575 case TDLS_TEARDOWN: 10576 nl80211_oper = NL80211_TDLS_TEARDOWN; 10577 break; 10578 case TDLS_ENABLE_LINK: 10579 nl80211_oper = NL80211_TDLS_ENABLE_LINK; 10580 break; 10581 case TDLS_DISABLE_LINK: 10582 nl80211_oper = NL80211_TDLS_DISABLE_LINK; 10583 break; 10584 case TDLS_ENABLE: 10585 return 0; 10586 case TDLS_DISABLE: 10587 return 0; 10588 default: 10589 return -EINVAL; 10590 } 10591 10592 msg = nlmsg_alloc(); 10593 if (!msg) 10594 return -ENOMEM; 10595 10596 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER); 10597 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper); 10598 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10599 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer); 10600 10601 return send_and_recv_msgs(drv, msg, NULL, NULL); 10602 10603nla_put_failure: 10604 nlmsg_free(msg); 10605 return -ENOBUFS; 10606} 10607 10608#endif /* CONFIG TDLS */ 10609 10610 10611#ifdef ANDROID 10612 10613typedef struct android_wifi_priv_cmd { 10614 char *buf; 10615 int used_len; 10616 int total_len; 10617} android_wifi_priv_cmd; 10618 10619static int drv_errors = 0; 10620 10621static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv) 10622{ 10623 drv_errors++; 10624 if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) { 10625 drv_errors = 0; 10626 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED"); 10627 } 10628} 10629 10630 10631static int android_priv_cmd(struct i802_bss *bss, const char *cmd) 10632{ 10633 struct wpa_driver_nl80211_data *drv = bss->drv; 10634 struct ifreq ifr; 10635 android_wifi_priv_cmd priv_cmd; 10636 char buf[MAX_DRV_CMD_SIZE]; 10637 int ret; 10638 10639 os_memset(&ifr, 0, sizeof(ifr)); 10640 os_memset(&priv_cmd, 0, sizeof(priv_cmd)); 10641 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 10642 10643 os_memset(buf, 0, sizeof(buf)); 10644 os_strlcpy(buf, cmd, sizeof(buf)); 10645 10646 priv_cmd.buf = buf; 10647 priv_cmd.used_len = sizeof(buf); 10648 priv_cmd.total_len = sizeof(buf); 10649 ifr.ifr_data = &priv_cmd; 10650 10651 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 10652 if (ret < 0) { 10653 wpa_printf(MSG_ERROR, "%s: failed to issue private commands", 10654 __func__); 10655 wpa_driver_send_hang_msg(drv); 10656 return ret; 10657 } 10658 10659 drv_errors = 0; 10660 return 0; 10661} 10662 10663 10664static int android_pno_start(struct i802_bss *bss, 10665 struct wpa_driver_scan_params *params) 10666{ 10667 struct wpa_driver_nl80211_data *drv = bss->drv; 10668 struct ifreq ifr; 10669 android_wifi_priv_cmd priv_cmd; 10670 int ret = 0, i = 0, bp; 10671 char buf[WEXT_PNO_MAX_COMMAND_SIZE]; 10672 10673 bp = WEXT_PNOSETUP_HEADER_SIZE; 10674 os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp); 10675 buf[bp++] = WEXT_PNO_TLV_PREFIX; 10676 buf[bp++] = WEXT_PNO_TLV_VERSION; 10677 buf[bp++] = WEXT_PNO_TLV_SUBVERSION; 10678 buf[bp++] = WEXT_PNO_TLV_RESERVED; 10679 10680 while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) { 10681 /* Check that there is enough space needed for 1 more SSID, the 10682 * other sections and null termination */ 10683 if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN + 10684 WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf)) 10685 break; 10686 wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan", 10687 params->ssids[i].ssid, 10688 params->ssids[i].ssid_len); 10689 buf[bp++] = WEXT_PNO_SSID_SECTION; 10690 buf[bp++] = params->ssids[i].ssid_len; 10691 os_memcpy(&buf[bp], params->ssids[i].ssid, 10692 params->ssids[i].ssid_len); 10693 bp += params->ssids[i].ssid_len; 10694 i++; 10695 } 10696 10697 buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION; 10698 os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x", 10699 WEXT_PNO_SCAN_INTERVAL); 10700 bp += WEXT_PNO_SCAN_INTERVAL_LENGTH; 10701 10702 buf[bp++] = WEXT_PNO_REPEAT_SECTION; 10703 os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x", 10704 WEXT_PNO_REPEAT); 10705 bp += WEXT_PNO_REPEAT_LENGTH; 10706 10707 buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION; 10708 os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x", 10709 WEXT_PNO_MAX_REPEAT); 10710 bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1; 10711 10712 memset(&ifr, 0, sizeof(ifr)); 10713 memset(&priv_cmd, 0, sizeof(priv_cmd)); 10714 os_strncpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 10715 10716 priv_cmd.buf = buf; 10717 priv_cmd.used_len = bp; 10718 priv_cmd.total_len = bp; 10719 ifr.ifr_data = &priv_cmd; 10720 10721 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 10722 10723 if (ret < 0) { 10724 wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d", 10725 ret); 10726 wpa_driver_send_hang_msg(drv); 10727 return ret; 10728 } 10729 10730 drv_errors = 0; 10731 10732 return android_priv_cmd(bss, "PNOFORCE 1"); 10733} 10734 10735 10736static int android_pno_stop(struct i802_bss *bss) 10737{ 10738 return android_priv_cmd(bss, "PNOFORCE 0"); 10739} 10740 10741#endif /* ANDROID */ 10742 10743 10744static int driver_nl80211_set_key(const char *ifname, void *priv, 10745 enum wpa_alg alg, const u8 *addr, 10746 int key_idx, int set_tx, 10747 const u8 *seq, size_t seq_len, 10748 const u8 *key, size_t key_len) 10749{ 10750 struct i802_bss *bss = priv; 10751 return wpa_driver_nl80211_set_key(ifname, bss, alg, addr, key_idx, 10752 set_tx, seq, seq_len, key, key_len); 10753} 10754 10755 10756static int driver_nl80211_scan2(void *priv, 10757 struct wpa_driver_scan_params *params) 10758{ 10759 struct i802_bss *bss = priv; 10760 return wpa_driver_nl80211_scan(bss, params); 10761} 10762 10763 10764static int driver_nl80211_deauthenticate(void *priv, const u8 *addr, 10765 int reason_code) 10766{ 10767 struct i802_bss *bss = priv; 10768 return wpa_driver_nl80211_deauthenticate(bss, addr, reason_code); 10769} 10770 10771 10772static int driver_nl80211_authenticate(void *priv, 10773 struct wpa_driver_auth_params *params) 10774{ 10775 struct i802_bss *bss = priv; 10776 return wpa_driver_nl80211_authenticate(bss, params); 10777} 10778 10779 10780static void driver_nl80211_deinit(void *priv) 10781{ 10782 struct i802_bss *bss = priv; 10783 wpa_driver_nl80211_deinit(bss); 10784} 10785 10786 10787static int driver_nl80211_if_remove(void *priv, enum wpa_driver_if_type type, 10788 const char *ifname) 10789{ 10790 struct i802_bss *bss = priv; 10791 return wpa_driver_nl80211_if_remove(bss, type, ifname); 10792} 10793 10794 10795static int driver_nl80211_send_mlme(void *priv, const u8 *data, 10796 size_t data_len, int noack) 10797{ 10798 struct i802_bss *bss = priv; 10799 return wpa_driver_nl80211_send_mlme(bss, data, data_len, noack, 10800 0, 0, 0, 0); 10801} 10802 10803 10804static int driver_nl80211_sta_remove(void *priv, const u8 *addr) 10805{ 10806 struct i802_bss *bss = priv; 10807 return wpa_driver_nl80211_sta_remove(bss, addr); 10808} 10809 10810 10811#if defined(HOSTAPD) || defined(CONFIG_AP) 10812static int driver_nl80211_set_sta_vlan(void *priv, const u8 *addr, 10813 const char *ifname, int vlan_id) 10814{ 10815 struct i802_bss *bss = priv; 10816 return i802_set_sta_vlan(bss, addr, ifname, vlan_id); 10817} 10818#endif /* HOSTAPD || CONFIG_AP */ 10819 10820 10821static int driver_nl80211_read_sta_data(void *priv, 10822 struct hostap_sta_driver_data *data, 10823 const u8 *addr) 10824{ 10825 struct i802_bss *bss = priv; 10826 return i802_read_sta_data(bss, data, addr); 10827} 10828 10829 10830static int driver_nl80211_send_action(void *priv, unsigned int freq, 10831 unsigned int wait_time, 10832 const u8 *dst, const u8 *src, 10833 const u8 *bssid, 10834 const u8 *data, size_t data_len, 10835 int no_cck) 10836{ 10837 struct i802_bss *bss = priv; 10838 return wpa_driver_nl80211_send_action(bss, freq, wait_time, dst, src, 10839 bssid, data, data_len, no_cck); 10840} 10841 10842 10843static int driver_nl80211_probe_req_report(void *priv, int report) 10844{ 10845 struct i802_bss *bss = priv; 10846 return wpa_driver_nl80211_probe_req_report(bss, report); 10847} 10848 10849 10850static int wpa_driver_nl80211_update_ft_ies(void *priv, const u8 *md, 10851 const u8 *ies, size_t ies_len) 10852{ 10853 int ret; 10854 struct nl_msg *msg; 10855 struct i802_bss *bss = priv; 10856 struct wpa_driver_nl80211_data *drv = bss->drv; 10857 u16 mdid = WPA_GET_LE16(md); 10858 10859 msg = nlmsg_alloc(); 10860 if (!msg) 10861 return -ENOMEM; 10862 10863 wpa_printf(MSG_DEBUG, "nl80211: Updating FT IEs"); 10864 nl80211_cmd(drv, msg, 0, NL80211_CMD_UPDATE_FT_IES); 10865 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10866 NLA_PUT(msg, NL80211_ATTR_IE, ies_len, ies); 10867 NLA_PUT_U16(msg, NL80211_ATTR_MDID, mdid); 10868 10869 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10870 if (ret) { 10871 wpa_printf(MSG_DEBUG, "nl80211: update_ft_ies failed " 10872 "err=%d (%s)", ret, strerror(-ret)); 10873 } 10874 10875 return ret; 10876 10877nla_put_failure: 10878 nlmsg_free(msg); 10879 return -ENOBUFS; 10880} 10881 10882 10883const u8 * wpa_driver_nl80211_get_macaddr(void *priv) 10884{ 10885 struct i802_bss *bss = priv; 10886 struct wpa_driver_nl80211_data *drv = bss->drv; 10887 10888 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) 10889 return NULL; 10890 10891 return bss->addr; 10892} 10893 10894 10895static const char * scan_state_str(enum scan_states scan_state) 10896{ 10897 switch (scan_state) { 10898 case NO_SCAN: 10899 return "NO_SCAN"; 10900 case SCAN_REQUESTED: 10901 return "SCAN_REQUESTED"; 10902 case SCAN_STARTED: 10903 return "SCAN_STARTED"; 10904 case SCAN_COMPLETED: 10905 return "SCAN_COMPLETED"; 10906 case SCAN_ABORTED: 10907 return "SCAN_ABORTED"; 10908 case SCHED_SCAN_STARTED: 10909 return "SCHED_SCAN_STARTED"; 10910 case SCHED_SCAN_STOPPED: 10911 return "SCHED_SCAN_STOPPED"; 10912 case SCHED_SCAN_RESULTS: 10913 return "SCHED_SCAN_RESULTS"; 10914 } 10915 10916 return "??"; 10917} 10918 10919 10920static int wpa_driver_nl80211_status(void *priv, char *buf, size_t buflen) 10921{ 10922 struct i802_bss *bss = priv; 10923 struct wpa_driver_nl80211_data *drv = bss->drv; 10924 int res; 10925 char *pos, *end; 10926 10927 pos = buf; 10928 end = buf + buflen; 10929 10930 res = os_snprintf(pos, end - pos, 10931 "ifindex=%d\n" 10932 "ifname=%s\n" 10933 "brname=%s\n" 10934 "addr=" MACSTR "\n" 10935 "freq=%d\n" 10936 "%s%s%s%s%s", 10937 bss->ifindex, 10938 bss->ifname, 10939 bss->brname, 10940 MAC2STR(bss->addr), 10941 bss->freq, 10942 bss->beacon_set ? "beacon_set=1\n" : "", 10943 bss->added_if_into_bridge ? 10944 "added_if_into_bridge=1\n" : "", 10945 bss->added_bridge ? "added_bridge=1\n" : "", 10946 bss->in_deinit ? "in_deinit=1\n" : "", 10947 bss->if_dynamic ? "if_dynamic=1\n" : ""); 10948 if (res < 0 || res >= end - pos) 10949 return pos - buf; 10950 pos += res; 10951 10952 if (bss->wdev_id_set) { 10953 res = os_snprintf(pos, end - pos, "wdev_id=%llu\n", 10954 (unsigned long long) bss->wdev_id); 10955 if (res < 0 || res >= end - pos) 10956 return pos - buf; 10957 pos += res; 10958 } 10959 10960 res = os_snprintf(pos, end - pos, 10961 "phyname=%s\n" 10962 "drv_ifindex=%d\n" 10963 "operstate=%d\n" 10964 "scan_state=%s\n" 10965 "auth_bssid=" MACSTR "\n" 10966 "auth_attempt_bssid=" MACSTR "\n" 10967 "bssid=" MACSTR "\n" 10968 "prev_bssid=" MACSTR "\n" 10969 "associated=%d\n" 10970 "assoc_freq=%u\n" 10971 "monitor_sock=%d\n" 10972 "monitor_ifidx=%d\n" 10973 "monitor_refcount=%d\n" 10974 "last_mgmt_freq=%u\n" 10975 "eapol_tx_sock=%d\n" 10976 "%s%s%s%s%s%s%s%s%s%s%s%s%s", 10977 drv->phyname, 10978 drv->ifindex, 10979 drv->operstate, 10980 scan_state_str(drv->scan_state), 10981 MAC2STR(drv->auth_bssid), 10982 MAC2STR(drv->auth_attempt_bssid), 10983 MAC2STR(drv->bssid), 10984 MAC2STR(drv->prev_bssid), 10985 drv->associated, 10986 drv->assoc_freq, 10987 drv->monitor_sock, 10988 drv->monitor_ifidx, 10989 drv->monitor_refcount, 10990 drv->last_mgmt_freq, 10991 drv->eapol_tx_sock, 10992 drv->ignore_if_down_event ? 10993 "ignore_if_down_event=1\n" : "", 10994 drv->scan_complete_events ? 10995 "scan_complete_events=1\n" : "", 10996 drv->disabled_11b_rates ? 10997 "disabled_11b_rates=1\n" : "", 10998 drv->pending_remain_on_chan ? 10999 "pending_remain_on_chan=1\n" : "", 11000 drv->in_interface_list ? "in_interface_list=1\n" : "", 11001 drv->device_ap_sme ? "device_ap_sme=1\n" : "", 11002 drv->poll_command_supported ? 11003 "poll_command_supported=1\n" : "", 11004 drv->data_tx_status ? "data_tx_status=1\n" : "", 11005 drv->scan_for_auth ? "scan_for_auth=1\n" : "", 11006 drv->retry_auth ? "retry_auth=1\n" : "", 11007 drv->use_monitor ? "use_monitor=1\n" : "", 11008 drv->ignore_next_local_disconnect ? 11009 "ignore_next_local_disconnect=1\n" : "", 11010 drv->allow_p2p_device ? "allow_p2p_device=1\n" : ""); 11011 if (res < 0 || res >= end - pos) 11012 return pos - buf; 11013 pos += res; 11014 11015 if (drv->has_capability) { 11016 res = os_snprintf(pos, end - pos, 11017 "capa.key_mgmt=0x%x\n" 11018 "capa.enc=0x%x\n" 11019 "capa.auth=0x%x\n" 11020 "capa.flags=0x%x\n" 11021 "capa.max_scan_ssids=%d\n" 11022 "capa.max_sched_scan_ssids=%d\n" 11023 "capa.sched_scan_supported=%d\n" 11024 "capa.max_match_sets=%d\n" 11025 "capa.max_remain_on_chan=%u\n" 11026 "capa.max_stations=%u\n" 11027 "capa.probe_resp_offloads=0x%x\n" 11028 "capa.max_acl_mac_addrs=%u\n" 11029 "capa.num_multichan_concurrent=%u\n", 11030 drv->capa.key_mgmt, 11031 drv->capa.enc, 11032 drv->capa.auth, 11033 drv->capa.flags, 11034 drv->capa.max_scan_ssids, 11035 drv->capa.max_sched_scan_ssids, 11036 drv->capa.sched_scan_supported, 11037 drv->capa.max_match_sets, 11038 drv->capa.max_remain_on_chan, 11039 drv->capa.max_stations, 11040 drv->capa.probe_resp_offloads, 11041 drv->capa.max_acl_mac_addrs, 11042 drv->capa.num_multichan_concurrent); 11043 if (res < 0 || res >= end - pos) 11044 return pos - buf; 11045 pos += res; 11046 } 11047 11048 return pos - buf; 11049} 11050 11051 11052const struct wpa_driver_ops wpa_driver_nl80211_ops = { 11053 .name = "nl80211", 11054 .desc = "Linux nl80211/cfg80211", 11055 .get_bssid = wpa_driver_nl80211_get_bssid, 11056 .get_ssid = wpa_driver_nl80211_get_ssid, 11057 .set_key = driver_nl80211_set_key, 11058 .scan2 = driver_nl80211_scan2, 11059 .sched_scan = wpa_driver_nl80211_sched_scan, 11060 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan, 11061 .get_scan_results2 = wpa_driver_nl80211_get_scan_results, 11062 .deauthenticate = driver_nl80211_deauthenticate, 11063 .authenticate = driver_nl80211_authenticate, 11064 .associate = wpa_driver_nl80211_associate, 11065 .global_init = nl80211_global_init, 11066 .global_deinit = nl80211_global_deinit, 11067 .init2 = wpa_driver_nl80211_init, 11068 .deinit = driver_nl80211_deinit, 11069 .get_capa = wpa_driver_nl80211_get_capa, 11070 .set_operstate = wpa_driver_nl80211_set_operstate, 11071 .set_supp_port = wpa_driver_nl80211_set_supp_port, 11072 .set_country = wpa_driver_nl80211_set_country, 11073 .set_ap = wpa_driver_nl80211_set_ap, 11074 .set_acl = wpa_driver_nl80211_set_acl, 11075 .if_add = wpa_driver_nl80211_if_add, 11076 .if_remove = driver_nl80211_if_remove, 11077 .send_mlme = driver_nl80211_send_mlme, 11078 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data, 11079 .sta_add = wpa_driver_nl80211_sta_add, 11080 .sta_remove = driver_nl80211_sta_remove, 11081 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol, 11082 .sta_set_flags = wpa_driver_nl80211_sta_set_flags, 11083#ifdef HOSTAPD 11084 .hapd_init = i802_init, 11085 .hapd_deinit = i802_deinit, 11086 .set_wds_sta = i802_set_wds_sta, 11087#endif /* HOSTAPD */ 11088#if defined(HOSTAPD) || defined(CONFIG_AP) 11089 .get_seqnum = i802_get_seqnum, 11090 .flush = i802_flush, 11091 .get_inact_sec = i802_get_inact_sec, 11092 .sta_clear_stats = i802_sta_clear_stats, 11093 .set_rts = i802_set_rts, 11094 .set_frag = i802_set_frag, 11095 .set_tx_queue_params = i802_set_tx_queue_params, 11096 .set_sta_vlan = driver_nl80211_set_sta_vlan, 11097 .sta_deauth = i802_sta_deauth, 11098 .sta_disassoc = i802_sta_disassoc, 11099#endif /* HOSTAPD || CONFIG_AP */ 11100 .read_sta_data = driver_nl80211_read_sta_data, 11101 .set_freq = i802_set_freq, 11102 .send_action = driver_nl80211_send_action, 11103 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait, 11104 .remain_on_channel = wpa_driver_nl80211_remain_on_channel, 11105 .cancel_remain_on_channel = 11106 wpa_driver_nl80211_cancel_remain_on_channel, 11107 .probe_req_report = driver_nl80211_probe_req_report, 11108 .deinit_ap = wpa_driver_nl80211_deinit_ap, 11109 .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli, 11110 .resume = wpa_driver_nl80211_resume, 11111 .send_ft_action = nl80211_send_ft_action, 11112 .signal_monitor = nl80211_signal_monitor, 11113 .signal_poll = nl80211_signal_poll, 11114 .send_frame = nl80211_send_frame, 11115 .shared_freq = wpa_driver_nl80211_shared_freq, 11116 .set_param = nl80211_set_param, 11117 .get_radio_name = nl80211_get_radio_name, 11118 .add_pmkid = nl80211_add_pmkid, 11119 .remove_pmkid = nl80211_remove_pmkid, 11120 .flush_pmkid = nl80211_flush_pmkid, 11121 .set_rekey_info = nl80211_set_rekey_info, 11122 .poll_client = nl80211_poll_client, 11123 .set_p2p_powersave = nl80211_set_p2p_powersave, 11124 .start_dfs_cac = nl80211_start_radar_detection, 11125 .stop_ap = wpa_driver_nl80211_stop_ap, 11126#ifdef CONFIG_TDLS 11127 .send_tdls_mgmt = nl80211_send_tdls_mgmt, 11128 .tdls_oper = nl80211_tdls_oper, 11129#endif /* CONFIG_TDLS */ 11130 .update_ft_ies = wpa_driver_nl80211_update_ft_ies, 11131 .get_mac_addr = wpa_driver_nl80211_get_macaddr, 11132 .get_survey = wpa_driver_nl80211_get_survey, 11133 .status = wpa_driver_nl80211_status, 11134#ifdef ANDROID_P2P 11135 .set_noa = wpa_driver_set_p2p_noa, 11136 .get_noa = wpa_driver_get_p2p_noa, 11137 .set_ap_wps_ie = wpa_driver_set_ap_wps_p2p_ie, 11138#endif 11139#ifdef ANDROID 11140 .driver_cmd = wpa_driver_nl80211_driver_cmd, 11141#endif 11142}; 11143